What you don't know: About pumps

The machine that pumps and conveys liquid to increase the pressure of the liquid is usually called a pump. From the energy point of view, a pump is a machine that converts energy, it converts the mechanical energy of the prime mover into the energy of the liquid being conveyed, so that the kinetic and pressure energy of the liquid increases and the liquid is conveyed from A to B.

Classification of pumps.

(1) The pump that makes the liquid level energy increase through the lifting motion of the working body. For example, the water level can be increased by the lifting motion of the scraper or skin money keel water truck or pipe chain water truck.

(2) Through the work of the body of the liquid extrusion movement so that the liquid pressure can increase the pump. For example, through the reciprocating motion of the piston or through the rotation of the rotor to increase the liquid pressure energy of the piston pump or rotary pump (which includes the live plate type, rotor type, screw type, rotary lobe type and swing piston type, etc.); and the use of the valve plate quickly open and close the liquid to produce water hammer to increase pressure of the water hammer pump; the use of engineering fluid kinetic energy to make the pumped liquid to increase pressure of the jet pump, and so on.

(3) The pump that increases the pressure and kinetic energy of the liquid through the high-speed rotational motion of the working body. For example, through the rotational movement of the impeller to increase the pressure and kinetic energy of the liquid centrifugal pump, mixed-flow pump, axial flow pump, vortex pump, collectively known as vane pump.

The use of water pumps.

In the production of chemical and petroleum enterprises, raw materials, semi-finished and finished products are mostly liquid, and the raw materials into semi-finished and finished products, need to go through a complex process, the pump in these processes play a role in transporting liquids, providing pressure and flow for chemical reactions. In addition, the pump can also be used to regulate the temperature.

In agricultural production, the use of pumps is the main drainage and irrigation machinery. China's rural areas are vast, and every year the rural areas need a large number of pumps. According to the statistics, agricultural pumps account for more than half of its total output.

In the mining and metallurgical industry, the pump is also the most used equipment. For example, the drainage of the mine shaft, mineral processing, smelting, rolling process, need to use the pump to supply water, etc..

In the power sector, thermal power plants need a large number of boiler feed pumps, condensate pumps, circulation pumps, ash and slag liquid pumps, etc.

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