Field of application
In the chemical and petroleum sector, raw materials, semi-finished products, and finished products are mostly liquids, and the production of semi-finished and finished products from raw materials requires a complicated process in which the pumps act as pressure fluids for transporting liquids and providing chemical reactions. In addition, pumps are used to adjust the temperature in many devices.
In agricultural production, pumps are the main drainage and irrigation machinery. China's rural areas are vast. Every year, the countryside needs a large number of pumps. In general, agricultural pumps account for more than half of the total output of pumps.
Pumps are also the most used equipment in the mining and metallurgical industries. The mine needs to use a pump to drain water. In the process of beneficiation, smelting and rolling, it is necessary to use a pump to supply water.
In the power sector, nuclear power plants require nuclear main pumps, secondary pumps, tertiary pumps, and thermal power plants that require a large number of boiler feed pumps, condensate pumps, oil and gas mixed-in pumps, circulating pumps, and ash pumps.
In national defense construction, the use of pumps is required for the adjustment of aircraft flaps, rudder and landing gear, the rotation of warships and tank turrets, and the subsidence of submarines. High pressure and radioactive liquids, and some also require no leakage from the pump.
In short, whether it is an aircraft, a rocket, a tank, a submarine, or a well, a mining, a train, a ship, or a daily life, pumps are needed everywhere, and pumps are everywhere. This is why the pump is classified as a general-purpose machine, which is a major product in the machinery industry.
Electric pumps, ie electrically driven pumps. The electric pump is composed of a pump body, a lift pipe, a pump base, a submersible motor (including a cable), and a starting protection device. The pump body is the working part of the submersible pump. It consists of the inlet pipe, the guide casing, the check valve, the pump shaft and the impeller. There are two ways to fix the impeller on the shaft.