What are the features and functions of deep well submersible pump?

As the submersible pump use scope is increasing in our country, because of its particularity in the workplace, led to its function and role only have great differences with the submersible pump in general, an important reason for the long-term and stable development of the submersible pump in these different submersible pump, a lot of customers and the function of submersible pump the function of understanding is not enough, then introduces the related content of these two aspects:

Functional characteristics of deep well submersible pump:
1, deep well submersible pump in the middle of the pump and the motor if the additional axial force carrier, its head can be increased to 900m.
2, the motor winding is nylon sheath polyethylene water resistance electromagnetic wire.
3, deep well submersible pump is a single suction multi-stage vertical centrifugal pump, deep well submersible motor for water filled wet, vertical wells with submersible asynchronous motor.
4, motor guide bearing with water lubricated bearings. The motor can withstand no axial force on pump thrust bearing, high lift pump thrust bearing with nickel bearing copper and its grinding of the fan-shaped block, is fierer Perth skateboard imports, under axial force water pump.
5, deep well submersible electric pump, submersible three-phase asynchronous motor and pump two parts. The pump body and the upper part of the motor directly connected with the motor shaft is arranged on the upper end of the seal device is reliable, can effectively prevent the exchange between the motor and the coolant pumping medium, the pump to ensure long-term safe operation.
The function of deep well submersible pump:
Submersible pump for hot water from deep wells, wells and marine extracts, can also be used in rivers, reservoirs, canals and other extraction, and submersible pump can also be used for irrigation and plateau in the drinking water, but also for the city, factories, mines, railways, water supply and drainage site use.
Through the analysis of the features and effect of submersible pump deep well and we can have a clear idea, submersible pump is suitable for deep water submersible pump equipment, with the continuous development of marine areas, the effect will be more and more important, but in the face of fierce market competition, if cannot maintain a product the long-term development and improvement, just place footfall, it will be eliminated by the times, facing the pressure of reality, submersible pump has a foundation in the development, also need to do research and exploration is very much.

The importance of optimizing the product and industry structure of submersible sewage pump

At present, China's domestic submersible sewage pump mainly by domestic manufacturers to produce and manufacture, a small part of the product imported from abroad. Market prospect is very broad. However, due to the reliability of submersible sewage pump needs to be strengthened, so to improve the technical content of the product is the main direction of the future development of the company. Submersible sewage pump is widely used in municipal engineering, factories, commercial, hospitals, hotels, residential areas, such as sewage discharge. Because of its simple installation, small floor area, convenient maintenance, no noise and so on,
Submersible sewage pump for the vertical layout, pump and motor axis, which makes the weight of rotating parts and hydraulic impeller exposed to the same direction; secondly, the submersible sewage pump is used in the liquid, the sewage transport medium containing impurities, silt and other substances; third, submersible sewage pump is a centrifugal pump, in when it is running, the power is always increased with increasing flow, when the flow exceeds the design flow and reaches a certain value, the motor will be due to overload and burn. All of the above problems will affect the service life of submersible sewage pump in different degree.
The submersible sewage pump is more suitable for conveying containing solid objects, or fiber cloth and other liquid medium, so don't worry about the pump life caused by environmental factors, the stability is not high, as long as the use of regular maintenance can guarantee the service life.
Submersible sewage pump and has an advantage, completely submerged to drown in the water, can work under water, save water protection measures, can save part of the cost. Area is greatly reduced, does not affect the beauty of the project, this feature has been favored by many enterprises. Submersible sewage pump discharge capacity is very strong, almost no blockage of the situation, the diameter of thirty to eighty mm in the solid can be passed.
In order to make each product to achieve the best results, take full electronic design process, the whole design and improvement on the computer and the further optimization design, more accurate, so the company has strong technical force, the designers also have rich design experience, not only that, in order to ensure Shanghai Kaitai pump a submersible sewage pump are equipped with sophisticated design, reduce the error, using the international advanced production technology and means, strict inspection department, ensure that each product is of high quality and long life quality.
In view of the problems of submersible sewage pump, some domestic manufacturers to focus on the development of pump protection system: automatic alarm or cut off the power supply when the pump is running. While this approach can play a certain effect, but this protection is necessary, but this is not the fundamental way to solve the problem, we need to focus on improving the performance of the pump, to fundamentally solve the problem. Submersible sewage pump in the future need to solve the problem is to improve the use of reliability, can adapt to a variety of working environment, optimize its structural design, and further improve the performance of submersible sewage pump.

Introduction to the regulation method of mine submersible pump

Mine submersible pump is mainly used in coal mine, mine submersible pump used in D type, DA type and TSW type multistage centrifugal pump; and the sump area and local drainage is commonly used type B and type Ba and BZ type single-stage centrifugal pump. With the increase in the scope of use of mine submersible pump, how to adjust the work, which is a lot of people this question, the next will be described in detail:
Introduction to the regulation method of mine submersible pump
Introduction to the regulation method of mine submersible pump
1, can be achieved through the throttle valve:

That is to change the open degree of the mine pump water outlet, the small gate valve, the local resistance of the pipe increases, the pipeline system characteristic curve becomes steep, the pump device's working point will make the corresponding change, the water quantity decreases accordingly. When the valve is closed, the local resistance of the pipe is close to infinity, and the water is cut off. The throttle adjustment method is simple and easy to operate, and is very used in production.
2, by changing the motor speed to change the operating point of the pump device:
Facts have proved that the new technology, new materials, new technology applications, not only the liberation of labor productivity, but also to ensure product quality and stable and reliable. Our country is a big agricultural country, submersible pump as an agricultural water to the irrigation tool into every household. The application of submersible pump in China's industrial field is also increasing. Submersible pump technology in China is still in the development stage, the technology should be further improved.
Speed control operation is refers to the mine submersible pump in variable speed motor drive operation, along with the coal mine problems in the processing of its outstanding performance, more people pay attention to the use of this product in the real production. How to maximize the performance of its use value, the need for manufacturers and customers to do more work and research, as long as the direction of development in the right direction, mine submersible pump will be more beautiful tomorrow.

Analysis of mechanical seal leakage of water pump

Analysis on the reason of water pump mechanical seal leakage:
Core tip: water pump mechanical seal leakage fault is one of the most prone to failure of the pump, so the pump mechanical seal is also part of the more critical parts of the pump vulnerable parts.
Pump selection of mechanical seal material must be suitable for liquid medium conveying pump factory, usually are some manufacturers is fluorine rubber mechanical seal NBR mechanical seal, if serious corrosive must choose the PTFE material mechanical seal,
Steps / methods:
1, the installation of mechanical seal tight observation of dynamic and static ring plane, such as severe burning phenomenon, the plane black and deep traces, sealing rubber hardens, loss of elasticity. This phenomenon is due to the installation caused by tight. Solution: adjust mounting height, impeller after installation, use a screwdriver to toggle the spring, there is a strong tension spring, after the reset release, mobile distance to 2-4 mm.
2, mechanical seal leakage of the first kind may be mechanical seal of the dynamic, static ring plane wear and tear, and caused the mechanical seal of the dynamic, static ring plane wear for six reasons.
3 installed over send. To observe the mechanical seal of dynamic and static ring plane, its surface has a thin layer of the scale, be able to wipe the surface, no wear, this is the loss of flexibility and spring assembly caused by bad or axial movement caused by motor.
4, the water quality is poor. Due to poor water quality, containing small particles and medium hydrochloride content high, formation of abrasive wear of the mechanical seal of the plane or surface of the groove of the ring strain ditch phenomenon. Treatment: to improve the water pressure or media, the replacement of mechanical seals.
5, cavitation. Cavitation is mainly produced in hot water pump. The medium is water, the water temperature is too high to produce steam, gas pipeline into the high pump cavity, this part of the gas can not be excluded, resulting in running water, dry grinding machine seal failure, cavitation automatic exhaust valve, replace seal.
6, water shortages caused by running dry mill damage. This phenomenon is more common in valve mounted form inlet pressure, inlet air, air cavity pump, pump boot, high temperature operation of the mechanical seal friction at high speed, can not be cooled, check sealing machine, spring tension, friction surface charred black, rubber hard crack. Treatment methods to exhaust pipe and pump cavity air, the replacement of mechanical seals.
Reason 3 liquid containing particles
Inspection methods: to understand the situation of the liquid (with no debris, such as sand and silt, etc.). Check the pump, observe and inspect the mechanical seal.
Status features: pump seal cavity with debris, or sediment or slag, etc.. Machine sealing damage (liquid pipe damage or static ring, dynamic ring friction surface wear).
Treatment methods: the pump cavity and the sealing cavity with debris, welding slag or sand, etc., will cause damage to the machine, the machine must be replaced.
4 reasons for the selection of the wrong (not in accordance with the requirements of the use of the use of suitable for the use of the machine seal, especially the use of corrosive liquid transport environment).
Inspection methods: a detailed understanding of liquid composition, temperature, corrosion resistance. Check the pump, observe and inspect the mechanical seal.
State characteristic: the deformation, metamorphism and melting of the seal such as the wave grade pipe. Dynamic and static ring friction surface may be grinding flowers (especially the use of a long time, time is not necessarily a short time to wear).
Processing method: according to the temperature of the liquid, the composition, the corrosion to select the suitable condition of the machine seal.

Analysis of the characteristics of the fully through flow submersible electric pump

Analysis of the characteristics of the fully through flow submersible electric pump

Application knowledge of submersible sewage pump in engineering application

Submersible sewage pump is a pump and motor connected, and at the same time into the work of the pump liquid products, compared with the general horizontal or vertical sewage pump pump, submersible sewage pump has the following obvious advantages:

1 submersible sewage pump compact structure, small area. The submersible pump into the liquid as a result, it can be directly installed in the sewage pool, without the construction of a dedicated pump pumps and machines used to install, can save a lot of land and infrastructure costs.
2 submersible sewage pump installation and maintenance is convenient. Small submersible sewage pump free installation, large submersible sewage pumps are generally equipped with automatic coupling device can be automatically installed, the installation and maintenance very convenient.
3 continuous running time. Submersible sewage pump because the pump and motor coaxial, short axis, rotating parts of light weight, so the load bearing on the bearing (radial) is relatively small, life expectancy is much longer than the average pump.
4 there is no cavitation damage and irrigation water and other issues. Especially after a little to the operator has brought a lot of convenience.
5 submersible sewage pump vibration noise is small, the motor temperature rise is low, no pollution to the environment.
It is because of these advantages, submersible sewage pump more and more attention has been paid, use the range more widely, from the simply used to transport water to the present can transport all kinds of domestic sewage, industrial waste, construction site drainage, liquid feed and so on. In the municipal engineering, industry, hospitals, construction, hotels, water conservancy construction plays a very important role in all walks of life.
But everything is One divides into two., submersible sewage pump is the most critical problem is the usability problem, because the use of submersible sewage pump occasions in the liquid; transport medium containing solid material mixed liquid; the pump and motor is close; pump for the vertical layout, with the weight of the rotating parts the water pump impeller under water pressure in the same direction. These issues have made the submersible sewage pump in the seal, motor carrying capacity, bearing arrangement and selection, and other aspects of the requirements than the general sewage pump to high.
In order to improve the life of submersible sewage pump, most domestic manufacturers are now in the protection of the pump system to find ways that the occurrence of leakage, overload and over temperature fault in the pump can automatically alarm and automatically shut down equipment repair. But we think, in the submersible sewage pump set protection system is necessary, it can effectively protect the safe operation of the electric pump. But this is not the key to the problem, the protection system is only a remedy after the failure of the pump, is a more passive approach. The key to the problem should be from the fundamental, completely solve the pump in the seal, overload and other aspects of the problem, this is a more proactive approach. For this purpose, we put the Deputy impeller fluid power sealing technology and pump non overload design technology used in submersible sewage pump, a greater increase the pump seal availability and load capacity, extend the service life of the pump.
Application of auxiliary impeller fluid power sealing technology
The so-called hydrodynamic impeller seal Deputy refers to the installation of an open impeller in the opposite direction near the back of the coaxial pump impeller hub. When the pump work, vice impeller with the pump with the rotating spindle, the Deputy impeller with the liquid will rotate, rotation of the liquid will produce an outward centrifugal force, the centrifugal force on the one hand the flow of mechanical seals to withstand the liquid, reducing the mechanical seal pressure. On the other hand, the solid particles in the medium are prevented from entering the friction pair of the mechanical seal, and the wear of the mechanical seal grinding block is reduced, and the service life of the machine is prolonged.
Vice impeller play a role in addition to sealing, but also can reduce the axial force in the submersible sewage pump is mainly in the axial force acting on the impeller on the liquid pressure force and the rotating part of the gravity of the composition, the direction of the two force is the same, efforts are made by the two forces add a. It can be seen that in the case of the same performance parameters, submersible sewage pump axial force than the general horizontal pump to large, and the difficulty of the balance than the vertical pump. So in the submersible sewage pump, the bearings are easy to damage the reason is also a great relationship with the axial force.
And if the installation of the Deputy impeller, the liquid in the impeller pressure on the direction of pressure difference is the two force in the opposite direction, so that it can offset part of the axial force, also played a role in extending the life of the bearing. But with vice impeller seal system also has a drawback, that is to be Deputy impeller part of the energy consumption, generally around 3%, but as long as the design is reasonable, can be reduced to a minimum of this part of the loss.

Ten characteristics of pipeline sewage pump products

Pipeline sewage pump is divided into stainless steel pipeline sewage pump, cast iron pipeline sewage pump. Can be widely used as a general pipeline pump for high-rise building pressurized water supply, and can be transported with particulate fiber containing sewage.
The pipeline sewage pump used for factory commercialheavily pollutedwaste water, the main residential area of the sewage station, city sewage treatment plant to send water system, air defense system drainage station, tap water plant water supply equipment, hotel, hospital sewage, municipal engineering construction sites, mines completewithmachine, rural biogas pool, farmland irrigation etc. industry, sewage containing particles, dirt, can also be used to clean water and weak corrosive medium.

Product features:
1, using the double blade impeller structure, greatly improving the ability through the dirt
Using a new type of friction sealing 2, mechanical, and long into the oil chamber operation;
3, the whole structure is compact, small size, low noise, energy saving effect is obvious, easy maintenance, convenient user replacement;
4, automatic control cabinet can be based on the required level changes, automatic control of the pump and the end of the stop, no special care, the use of very convenient;
5, according to the user needs to be equipped with installation, it is to the installation, maintenance of the arrival of great convenience, people do not have to enter the sewage pit;
Ten characteristics of pipeline sewage pump products
6, can be used in the design, and ensure that the motor will not overload;
7, the use of large flow channel blocking the design of hydraulic components, greatly improve the dirt through capacity, can effectively through the pump diameter of 5 times the fiber material and diameter of the pump diameter of about 50% of solid particles.
8, pump design is reasonable, reasonable matching motor, high efficiency, energy saving effect is remarkable.
9, mechanical seal with a double end series seal, the material is hard corrosion-resistant tungsten carbide, durable, wear-resistant and other features, can make the pump safe and continuous operation for more than 8000 hours.
10, compact structure, small volume, convenient movement, convenient installation, no need of pump room, dive into the water to work, greatly reduce the project cost.

Vertical sewage pump control procedures

Vertical sewage pump control procedures
The pump is installed in the sludge control room, which is responsible for the distribution of the sludge in the digestion tank.
First, start:
1, starting pump and pump operation, the pool must be more than 2.00M.
2, manual rotation of the pump spindle, the hand sensor is easy, continuous, uniform rotation, no clear graphics card hysteresis vibration.
3, open the mud valve, and open the inlet valve and the valve body of the valve, the valve of the pump body, the internal gas discharge, to the discharge of liquid continuous uniform after closing the two valve.
4, starting motor, observation of current changes and pump start, to reach the required speed after the slowly open the mud valves, and adjust to the conditions of the process requirements.
If the pump body in the process of abnormal vibration or current can not reach the requirements of the situation, it is to stop the pump in a timely manner, to identify the reasons for the exclusion of starting again after.
Vertical sewage pump control procedures
Two start time must be separated by more than 15 minutes.
Two, the operation of the:
Should always pay attention to check the operating conditions of the 1 operators, the pump in operation, such as vibration, noise, abnormal idling should stop the pump check in time. Smooth operation will seriously damage the mechanical seal.
2, try to avoid idling, so as not to damage the rubber bearing, and should avoid long time operation in closed outlet valve case.
Two, parking:
1, closed pump outlet pipe valve and pump inlet pipe valve.
Closed power, stop the operation of the pump.

Introduction to the basic knowledge of the use of sewage pump and impeller classification

Sewage pump is a kind of non clogging pump, with a variety of forms: such as diving and dry type two, the most common submersible type for WQ type submersible sewage pump, the fiber. Therefore, the pump flow channel is easy to plug, once the pump is blocked will make the pump can not work, and even burning motor, resulting in poor sewage. To urban life and environmental impact of a serious. Therefore, the anti blocking and reliability is an important factor in the quality of the sewage pump.
And other pumps, impeller, water pressure chamber, is the two core components of the sewage pump. Its performance, also on behalf of the pump performance, anti clogging sewage pump performance, efficiency and cavitation performance, anti abrasion performance is mainly composed of vane pump and water pressure chamber to ensure that the two major components. The following are an introduction:
1, the structure of the impeller type: the impeller structure is divided into four categories: blade type (open and closed), cyclone type, channel type, (including single channel and dual channel) spiral centrifugal four open, semi open impeller has the advantages of easy fabrication, when the impeller can cause blockage, easy cleaning and maintenance but, in the long run, the particle abrasion will make the clearance of blade and the side wall of the indoor water pressure increase, thereby reducing efficiency. And the increase of clearance will break the pressure distribution on the blade. Vortex is not only a large amount of losses and the pump will increase the axial force, at the same time, increase the gap, flow in the stability of liquid flow damage to the pump vibration, the impeller type is not easy to transport with large particles and long fibers of the media, from the performance perspective, the type of impeller efficiency is low. The highest efficiency is equivalent to an ordinary closed around 92%, a relatively flat head curve.
2, swirl impeller: the type of impeller pump, due to the impeller part or all of the reduced pressure water chamber. Therefore, no blocking performance, over particle capacity and long fiber through a strong ability. Particles in the pressurized water flow through the impeller rotation of the vortex generated by the promotion of the movement, the suspension of the particle itself does not produce energy, just in the flow channel and liquid exchange energy. In the flow process, the suspended particles or long fibers do not contact with the leaves, leaves the situation much less wear and tear, there is no space because of increased erosion and, in the long run will not cause a serious decline in efficiency, the type of impeller pump used for pumping large particles with the medium and long fibers. From the performance, the efficiency of the impeller is low, only the equivalent of about 70% of the ordinary closed impeller, the head curve is relatively flat.
Introduction to the basic knowledge of the use of sewage pump and impeller classification
3, closed impeller: the type of normal efficiency of the impeller is higher. And in the long run, the situation is relatively stable, the type of impeller pump axial force is small, and can be set on the front and back cover plate. The auxiliary vane on the front cover can reduce the vortex loss of the impeller inlet and the wear of the seal ring. On the back side vane not only play the role of axial force balance, but also can prevent the suspended particles into the cavity of the mechanical seal mechanical seal protection. But the poor non blocking, easy to wound the type of impeller, not in pumping with large particles (long fiber) end after the sewage medium.
4, flow channel type impeller: the impeller is a non blade impeller, the impeller is a flow from the inlet to the outlet of a curved flow. Therefore suitable for pumping large particles and long fibers containing medium. Good blocking resistance. From the performance, the type of impeller efficiency and general closed impeller is not large, but with the type of impeller pump head curve is relatively steep drop. Power curve is relatively stable, it is not easy to generate the problem of super power, but this type of impeller cavitation performance than ordinary closed type impeller, especially suitable for use in the pressure of the pump.
5, screw centrifugal impeller: the impeller of the blade for the twisted spiral blades, in the conical wheel body from the suction port along the axial extension. The impeller of the pump and has a positive displacement pump and centrifugal pump.
In terms of performance, the pump has a steep drop head curve, the power curve is relatively flat.
The most common type of pressure water chamber used in the sewage pump is the spiral case, which is used in the internal installation type submersible pump, which is a guide vane of the radial guide vane or the flow passage type. A spiral, spiral ring and intermediate type three. Basically, the spiral spiral case is not used in the sewage pump. Because the structure is simple and easy to manufacture, the annular pressure water chamber is adopted in a small sewage pump. But the application scope of the annular water pressure chamber in the medium type (semi spiral) pressure water chamber is gradually smaller. Because of high efficiency and an intermediate type pressurized water chamber and a spiral pressure chamber of the high permeability of water. Has increasingly been the focus of manufacturers.

Necessity of proper selection of pump

The pump is a universal mechanical equipment for a wide, it is widely used in petroleum, chemical, metallurgy, mining, shipbuilding, electric power industry, agriculture, civil and defense departments, occupies an important position in the national economy. According to statistics, China's pump output reached 5 million 256 thousand units. Pump power consumption accounts for more than 21% of the national electricity consumption. So it is very important to reduce the energy consumption of the pump and to save energy. In recent years, we pump a lot of industry design and development of energy efficient products, such as IHF, CQB, FSB, UHB and other types of pumps, reducing the energy consumption of the pump has played a positive role.
But in various fields of national economy, because of the unreasonable selection, many pumps are in the unreasonable operation condition, the operation efficiency is low, and a lot of energy is wasted. Because of the selection of the pump is not reasonable, can not be used, or the use of maintenance costs increase, low economic efficiency. Thus, a reasonable choice of pump is also important to save energy. The so-called reasonable selection of pumps, is to consider the pump unit and pump station investment and operation costs and other comprehensive technical and economic indicators, so that it is in line with the principles of economic, security, applicable. Specifically, the following aspects: must meet the requirements of using the flow and head, which requires the pump operating time point (intersection curve and performance characteristics of the pump device) to keep running at high efficiency range, so that power is both easy to damaged parts. The selected water pump has the advantages of small size, light weight, low cost, good performance and high efficiency. Has a good anti cavitation performance, this can reduce the pumping station the depth of excavation, not to pump cavitation, smooth operation and long life. Pumping station according to the selected pump, the project investment is low, low operating costs.

Basic principle of submersible sewage pump

First, the basic principles
Submersible sewage pump is a kind of used for transportation of solid particles and fiber hybrid liquid such as sewage and industrial waste water, mud and other environmental protection industry pump products. WQ type submersible sewage pump is composed of sewage pump, sealing system, submersible motor, control and protection system, automatic installation system, and so on. Different from the general sewage pump is: WQ type submersible sewage pump pump and motor coaxial rotating, and at the same time to dive into the work. The sealing system of the pump can effectively prevent the liquid from entering the motor chamber, and the safe operation of the motor is protected. Control and protection system to make the pump leakage, oil leakage, overload, overheating, lack of equal fault, the timely warning and downtime for repair.
Two, technical key
The automatic installation system is connected with the pipeline system or disconnected when the pump is installed and disassembled by the coupling device. WQ type submersible sewage pump is an indispensable important equipment in water treatment. It's safe operation directly affects the safe operation of water treatment system, therefore, in the WQ type submersible sewage pump, the main problem is to ensure the reliability of the pump, and the effects of sewage pump key problems using reliability and sealing performance of the pump and the non overload performance as well as the important parts of life, in the pump the seal, the vice impeller fluid power sealing new sealing technology combined with mechanical seal, the sealing reliability is improved greatly. While in the non overload performance, we use the theory of hydraulic design process for the pump, and adopts the double channel impeller, the pump not only has great ability through and it is more important in the whole range of lift pump power will not exceed the rated power of motor and motor overload.

How to improve the self suction performance of self priming sewage pump?

The first one: the suction end of the valve is installed at the end of self-priming sewage pump suction pipe.
Suction end of the valve is actually a check valve, it can only guarantee the flow by the pool into the suction tube can not turn the clock back, so if the suction pipe full of water, despite the elevation axis pump the water level above the pool, but because the end suction the role of valve, suction tube into the pool water will not enable the suction tube has been filled with water to ensure the pump can automatically and quickly start. The reliability of this method by absorbing effect, the quality of the suction end of the valve is not tightly closed, for example, Water Leakage, suction tube will gradually shed the water pool, a long time, no water suction pipe, leading to still need artificial irrigation pump start.
Second: self priming sewage pump to reduce the water inlet pipe curve, height and horizontal distance.
Third: self priming sewage pump set before the pump suction tank.
This way is needed in a suction tank set the pump suction pipe, water pump in the first operation, artificial internal tank filled with water, the first time after stopping operation, because the water suction tank pipe tube is higher than the height of the water height, although the pool water level is lower than the tank water level, water tank can't go back, into the pool, so the water absorption can be stored, and because the water tank outlet pipe (i.e. pump suction pipe) tube height is lower than the height of the water, so it can ensure the pump suction tube filled with water, and then after the pump is running, the water tank is pumped away, there is negative pressure the tank, the water in the pool under the action of atmospheric pressure added to the water tank through the suction tank inside the pool
Fourth: self priming sewage pump pump water pump in the pump, pump start before the pump starts, the vacuum pump to start, so that the first water filled with water pump, to ensure that the pump automatically, quickly start. This way of water absorption requires a sound automatic control system to ensure the normal operation of the system.

Analysis of the large sound vibration in the self priming pump

What self priming pump will be the sound vibration of the abnormal situation? Many people think this is because of the quality of the self priming pump, in fact, because of the big reason for the vibration of the pump, the main reason is as follows:
1, the self suction pump installation is not correct, some users of self suction non clogging sewage pump random factory fixed self-priming pump self-priming pump bracket with the wood together on the ground with the import and export pipeline is directly used to directly in order to save time and effort, and the user is the self suction pump is fixed on the triangle welding the bracket, because too single trevet isn't solid. Only a small amount of self suction pump base and the triangle with this method is not correct, the correct way is to remove the wooden pump fixed on a hard flat surface.
2, due to the installation of ZX coupling self-priming pump when the concentricity is not adjusted or coupling inside the rubber block wear leads to self suction pump vibration phenomenon, it should be re concentric coupling degree of correction or replacement of new rubber block and adjust the concentricity.
3, there may be a pump bearing damage caused by the pump will be a big reason for vibration, the replacement of the new bearings will be able to solve.
4, the self suction pump import and export is not in accordance with the standard diameter aperture configuration, such as stainless steel self-priming pump inlet pipe is 100mm export is 100mm, some users without consulting the manufacturers directly to the import pipeline, resulting in small water quantity to keep up with the self suction pump out of water, which is the self suction pump vibration the reason is the self suction pump sound is not normal.
5, suction pool water level drops or water too fast, resulting in self-priming pump water into the air to pump sound is not a normal phenomenon.
Self suction pump in use will fail, if judged, handled properly, will affect the working performance of self-priming pump self-priming pump can not even work, the phenomenon is the self suction pump water, to tell you the solution:
Self priming pump does not water
(1) check whether the pump body of the water storage room to start before the foot of the water (at least on the surface of the impeller more than the center line). Otherwise, to add enough water.
(2) whether the rotation direction is in compliance with the requirements. If not consistent, can be adjusted to the direction of rotation of the pump with the pump.
(3) Self-priming sewage pump impeller inlet is blocked. If the blockage to clear.
(4) whether there is leakage or blockage of water absorption. If there is, should be immediately ruled out.
(5) check the mechanical seal and the skeleton oil seal is damaged. If the damage is to be replaced.
(6) in the body of the pump flow must be clear, otherwise, to clean the reflux hole, clear the blockage.
(7) if the pump speed is too low, it should make it reach the normal speed.

Submersible pump (deep well submersible pump) installation method

Submersible pump and installation:
Well with submersible pump (submersible pump) under general wells installed in two ways: one is the head is very low (generally less than 30m) of the submersible pump can be installed using the hose; and high lift (generally above 30m) the submersible pump should be used in pipe installation.

1, the use of hose under the installation
The submersible electric pump which is installed under the well of the soft pipe can be directly used for hoisting the rope (such as nylon rope, etc.) which can bear the full weight of the water in the submersible electric pump and the water pipe and the water pipe and the water pipe and the water pipe.
2, the use of steel pipe under the installation
The installation of the steel pipe under the well with submersible electric pump, the installation method as shown in fig..
1) with clamp wells with submersible pump  part of the Swiss, and the chain hoist, slowly, well, until the clamps our resting on the wellhead, remove the chain.
2) with another pay clamp of a connecting pipe, flange connecting pipe distance 15cm with chain hoist, slowly down. Connecting pipe to the blue and submersible pump flange gasket between the good rubber gasket, bolts, nuts and spring washers will be connected to the pipe flange and submersible electric pump flange evenly forced tightening.
3) the submersible pump slightly lifted, remove the clamp at the upper end of the submersible pump, and use plastic tape or cable to connect cable card will fasten the hose, slowly under the hoop firmly resting on the wellhead.
4) with the same method, all the water pipes connected to the submersible pump, and human wells.
5) the submersible pump out cable access control switch, and then connected three-phase power supply.

Water pump energy saving ten technology

Let pump energy saving ten technology
First, cancel valve installation: valve at the end of a larger drag coefficient can be reduced about 1 meters lift. Cancel the valve can improve the efficiency of water pump, if the outlet pipe fitted with a door, and then sealed packing butter box, so that the pump stops do not have to start again after water filling.
The water outlet pipe of the water pump and reduce the resistance of the valve and check valve: the valve and check valve resistance coefficient is relatively large, the check valve for the door (the role of the check valve to prevent backflow of water, with the door, also do not need a check valve).
The water inlet elbow and reduce the loss of the pump oblique loading (or turn the pump volute) this will allow direct access to water entering and leaving the pool to reduce the elbow.
The filter is installed, the sewage tank is reasonable, to avoid the impact of water flow.
The water inlet pipe, to be laid to the bottom of the pool (the best storage pools in the bottom of the pool).
The belt drive, the belt drive effect on attention: to improve the belt tight side and loose side of the transmission angle, nor will a wide belt into a narrow belt, and pay attention to the tightness of the belt.
To avoid the "gun" type a water pipe above the pool because the water head loss of large orifice outflow of water will produce the reflected wave on the side wall, increase the outlet pressure of water.
The pump change ring: adjust the axial clearance of blade ring gap, volumetric efficiency decreased. Therefore, we should regularly check the mouth ring gap. The numerical value of the axial clearance should be adjusted according to the specification of the factory.
To choose new pipeline small loss. The old pipes are 2 times as much as the new pipes.
The regular inspection and cleaning, water pipe, impeller or flow diversion shell debris blockage.

8 major basis for the selection of the discharge of submersible sewage pump

The site is small, and the drainage volume is not large, we will recommend the user preferred submersible sewage pump. So, how do we choose submersible sewage pump according to the flow rate below, Shanghai speed will be able to select the 8 major basis for the flow of submersible sewage pump introduced to you.
1, when the medium contains more fiber waste, should use a large channel sewage pump.
2, when the sewage contains large debris, the submersible sewage pump should be equipped with a crushing device.
3, when the water inlet pipe can be closed, the power supply can not be provided without interruption, but the alarm device should be set up.
4, when the pool can not be set up accident drainage pipe, submersible sewage pump should be an uninterrupted power supply.
5, when upgrading the sewage and waste water with large impurity pollution, different sump pump outlet pipe inside the discharge should not be merged.
6, when upgrade their wastewater, according to the actual situation of different sets of diving pool pump discharge pipe combined discharge.
7, when the sewage sump drainage using submersible sewage pump, the pump should be set a fixed autotransformer device to facilitate pump maintenance, sewage pump should be able to automatically start and stop and start and stop at the scene manually, multiple pumps can be run in parallel alternation can be segmented into operation.
8, when there is a displacement adjustment, the maximum or minimum flow of water can be selected according to the life. Water pump lift by lift height calculation, pipe loss, and then add a certain degree of freedom head; public buildings should be set for each life of the drainage basin as a unit set up a spare pump, usually advised to run interactively; drainage underground room, equipment room, garage floor washing, if there is no equipment for pump two Taiwan and Taiwan more than two drainage pump.
On the basis of the selection of flow of the eight points above is when we choose the suitable submersible sewage pump should be concerned, only according to the above points are selected, the submersible sewage pump can we pick the most suitable.

Advantages and characteristics of submersible sewage pump

Main features of submersible sewage pump
1 unique leaf or double blade impeller structure, greatly improve the through capacity of sewage, which can effectively through 5 times of pump diameter and pump diameter solid particles 50%.
2 mechanical seal using a new hard corrosion-resistant tungsten carbide material, while the seal is improved to double end seal, so that it is in the oil chamber for a long time to run, can make the pump safe and continuous operation for more than 8000 hours.
3 compact structure, small volume, low noise, energy saving effect, convenient maintenance, no need of pump room, dive into the water to work, greatly reduce the project cost.
4 the pump seal oil chamber is provided with a high precision anti interference water leakage detection sensor, and a heat sensitive element is embedded in the stator winding, and the absolute protection of the motor of the pump is provided.
5 according to the user needs to be equipped with a fully automatic safety protection control cabinet, the pump leakage, leakage, overload and over temperature and so on absolute protection, improve the safety and reliability of the product.
6 the float switch can automatically control the start and stop of the pump according to the change of the required liquid.
7 according to the user needs to be equipped with dual guide rail automatic coupling installation system, which brings great convenience to the installation and maintenance, people do not have to enter the sewage pit.
Advantages of submersible sewage pump
1 compact structure, small floor area. Sewage pump into the liquid as a result, it can be directly installed in the sewage pool, without the construction of a dedicated pump pumps and machines used to install, can save a lot of land and infrastructure costs.
2 convenient installation and maintenance. Small, free installation of sewage pump, sewage pump large are generally equipped with automatic coupling device can be automatically installed, the installation and maintenance very convenient.
3 continuous running time. Due to pump and motor coaxial, short axis, rotating parts of light weight, so the load bearing on the bearing (radial) is relatively small, life expectancy is much longer than the general pump.
4 there is no cavitation damage and irrigation water and other issues. Especially after a little to the operator has brought a lot of convenience.