In the production of the chemical and petroleum sectors, most of the raw materials, semi-finished products and finished products are liquids, and the raw materials into semi-finished products and finished products need to go through a complicated process. In these processes, the pump plays a role in transporting liquids and providing pressure flow for chemical reactions. In addition, pumps are used to adjust the temperature in many devices.
In agricultural production, pumps are the main irrigation and drainage machinery. my country's rural areas are vast, and a large number of pumps are needed every year in rural areas. Generally speaking, agricultural pumps account for more than half of the total pump output.
In the mining and metallurgical industries, pumps are also the most used equipment. The mine needs to use pumps to drain water. In the process of beneficiation, smelting and rolling, pumps are needed to supply water.
In the power sector, nuclear power plants require nuclear main pumps, secondary pumps, and tertiary pumps, and thermal power plants require a large number of boiler feedwater pumps, condensate pumps, oil-gas mixed pumps, circulating water pumps, and ash pumps.
In the construction of national defense, pumps are required for the adjustment of aircraft flaps, rudder and landing gear, the rotation of warships and tank turrets, and the ups and downs of submarines. High-pressure and radioactive liquids, and some require no leakage from the pump.
In short, whether it is airplanes, rockets, tanks, submarines, drilling, mining, trains, ships, or daily life, pumps are needed everywhere, and pumps are running everywhere. Because of this, the pump is classified as a general-purpose machine, which is a major product in the machinery industry.
Electric pumps are pumps driven by electricity. The electric pump is composed of a pump body, a water lift pipe, a pump seat, a submersible motor (including cables) and a starting protection device. The pump body is the working part of the submersible pump, which is composed of the water inlet pipe, the diversion shell, the check valve, the pump shaft and the impeller. There are two ways to fix the impeller on the shaft.
