What are the features and functions of mine submersible pump?

Each product has its own features, for mine submersible pump, which is mainly used in coal mine industry, because of its special location, so the features of mining on the function of submersible pump is safe and reliable operation, small occupation area, and simple maintenance. Mine submersible pump function is mainly embodied in: work in the coal mine drainage pump drainage, coal mine emergency drainage or complex ore.

Functional characteristics of mine submersible pump:
What are the features and functions of mine submersible pump?
1, motor and pump body can dive into the water, safe and reliable operation.
2, mine submersible pump for well pipe and water pipe no special requirements.
3, mine submersible pump structure is simple, raw materials used in the province.
4, mine submersible pump small size, small area.
5, mine submersible pump has the advantages of convenient installation, does not require the construction of a dedicated pump, and simple maintenance.
Mine submersible pump:
1, China's mining mining has been for a long time development, mining related artifacts have many non contact people in this industry is really not clear, mine submersible pump must be used for mining mining deep water extraction.
2, each for mining artifacts have special effects, the main function of mine submersible pump is used to extract the short-range mining deep water, such as mining when it came to a lot of groundwater, and the groundwater is not far away from the surface.
3, in fact, a variety of pumps can be generic, but according to the actual needs of the pump to improve, to achieve high efficiency, simple and practical purposes, but also to improve the general use of the pump after the pump.
Through the above analysis of mine submersible pump function and mine submersible pump function introduction we can know that mine submersible pump is mainly used in mining equipment, which made great contribution to China's mining mining enterprise. However, with the emergence of various types of pumps, submersible pumps are also facing a certain pressure, how to maintain and improve the advantages of products, there is a lot of homework to do.

Basic structure of self priming centrifugal pump

The self suction centrifugal pump is composed of six parts, namely, impeller, pump body, pump shaft, bearing, seal ring, stuffing box.
1 impeller is the core part of the self suction centrifugal pump, it has a high output power, and the blade on the impeller plays a major role. The inner and outer surfaces of the impeller are required to be smooth, so as to reduce the friction loss of the flow.
2 pump body is also called pump shell, which is the main body of the pump. To play a supporting role, and with the installation of the bearing bracket.
3 the role of pump shaft is connected with the motor through the coupling, the motor will be transferred to the impeller, so it is the main component of the transfer of mechanical energy.
Since the basic structure of the centrifugal pump self suction centrifugal pump.
4 bearing is a component that supports the pump shaft on the pump shaft, there are two kinds of rolling bearing and sliding bearing. Rolling bearings use butter as a lubricant oil to be appropriate for 2/3 3/4 size too much may have a fever, there are too few sound and heat! Sliding bearing is used for transparent lubricant oil, fuel to the oil level line. Too much oil to be leaking along the shaft and low drift, too little overheated bearings burned to the accident! Bearing in the pump during operation the maximum temperature of 85 degrees in the general run of about 60 degrees, if we should find the reasons (whether there are impurities, oil is black, is water) and timely treatment!
5 sealing ring, also known as anti leakage ring. The gap between the impeller and the pump shell will cause the pump within the high pressure zone of the water flow through the gap area of low pressure water, affecting the pump efficiency! The gap is too small will cause the impeller and the pump shell friction and wear. In order to increase the return to reduce the internal leakage resistance and service life of the delay of the impeller and pump casing, junction with sealing ring in the pump casing and impeller aid, sealing gap should be between 0.25 ~ 1.10mm.
6 stuffing mainly by the packing, seal ring, tube filler, filler cap, seal tubes. Stuffing function is mainly to close the gap between the pump shell and pump shaft, so that the pump does not flow inside the pump to the outside and do not let the outside air into the pump. Always maintain the vacuum pump! When the pump shaft and the packing heat generated by the friction depends on the water living water to fill the cooling water sealed circle to maintain the normal operation of pumps. Therefore, the operation of the pump in the process of inspection of the stuffing box is to pay attention to the special attention.

Matching relationship between model and use efficiency of submersible electric pump

Shanghai WeiHu(WEL) Pump Industry Co., ltd., is a professional production of the development, production, sales, manufacturing all kinds of submersible pumps, submersible motor, stainless steel pump, hot water pump and auxiliary equipment of the scale of modern professional production of high-tech enterprises. The company has a complete production, testing technology and equipment, the main production of 150QJ, 200QJ, 250QJ, 300QJ and other series of submersible pumps and ancillary equipment.

Submersible pumps of different sizes have different scope of use, any of the provisions of submersible pump nameplate on the flow and head is the submersible electric pump rated the best point is this submersible pump efficiency is high.

Along with the different structure form of the submersible pump, the characteristics of the submersible pump are different. The centrifugal pump or mixed flow pump, when the use of the head exceeds the rated head, shaft power of pump to reduce, when using the head below the rated head, shaft power of pump required increases, when the use of the head a lot lower than the rated head, shaft power of pump required will be greatly increased. At this time, the load of the electric submersible pump is increased, the stator current is increased, and the stator winding tends to overheat.

If there exists a submersible pump long time low lift and large flow operation, the stator winding heating is very powerful, often burn out the motor. The axial flow pump, the characteristics of the opposite; when using the head below the rated head, shaft power of pump to reduce, when the use of the head exceeds the rated head, shaft power of pump required increases, when the use of the head increased more than the rated pump head, shaft power will be greatly increase. At this time, the stator winding of submersible electric pump will overheat. If you are running in high lift axial flow submersible pump long time heating, the stator winding is very powerful, often burn out the motor.

Submersible pump generally in the normal operation of 0.7 - 1.2 times the rated flow range (submersible sewage pump can operate normally in the 0.7 - 1.3 times the rated flow rate range), beyond this range, could cause an overload, thus requiring the user to select and use submersible pump, we must consider the appropriate scope of use. Especially for multi-stage submersible electric pump, more need to pay attention to: high lift submersible pump, do not use too low head, so as not to waste electrical energy, and may damage the submersible electric pump.