High-pressure pumps are used for different purposes in different places, so there are many types of high-pressure pumps, which are generally divided into the following pump types.
1. High pressure plunger pump. Suitable for petroleum, chemical and fertilizer industries as process pumps, high-pressure water descaling in metallurgy and steel rolling mills, high-pressure water cleaning and descaling in construction, shipbuilding, sugar, paper, chemical and other industries, oil field water injection, boiler feed water, hydraulic machinery The power source, as well as food, pharmaceutical and other parts that need to generate high-pressure liquid, the conveying medium is a fluid without solid particles. High-pressure plunger pumps include high-pressure three-plunger pumps, all of which are horizontal, which are more stable than vertical, less vibration, easier to assemble, disassemble, and maintain. Also called triplex pump, it has a uniform flow and pressure pulsation is reduced accordingly.
2. For high-pressure reciprocating pumps, the operating pressure should generally be between 10MPa and 100MPa. It belongs to a positive displacement pump, which uses the periodic change of the volume in the working chamber to achieve the purpose of conveying liquid. The mechanical energy of the prime mover is directly converted into the pressure energy of the conveying liquid through the pump; the capacity of the pump only depends on the volume change value of the working chamber and The number of changes per unit time is theoretically independent of the discharge pressure. The reciprocating pump is mainly suitable for high pressure and small flow, and the flow of the pump is required to be constant or quantitative and proportional to transport various media, or the suction performance is required, or the self-priming performance is required.
3. The high-pressure electric pressure test pump has the advantages of high degree of "three modernizations", long service life, stable performance, convenient operation, flexible movement, light weight, etc. High pressure, liquid, etc. are obtained in the test chamber, which has a large flow in the initial stage of pressure test, and can quickly fill with liquid and increase pressure to shorten the test time. When the pressure exceeds 0.6Mpa, in order to make the pressure test process be carried out smoothly and slowly, the flow rate will be automatically reduced. The pump has two flow rates at high and low pressure, and can be automatically changed. If it is below the rated discharge pressure, it can be carried out. Hydrostatic test of any value.
4. High-pressure cleaning pump, a high-efficiency and energy-saving cleaning equipment, is used for cleaning heat exchangers or reactors and various pipes in chemical plants, thermal power plants, sugar factories, paper mills and other industries, and can also be used for casting sand cleaning. Cleaning of various vehicles, aircraft, ships, slaughterhouses, etc. High-pressure cleaning pump accessories include: high-pressure water gun, foot valve, three-dimensional rotary nozzle, high-pressure resin tube, high-pressure rubber tube, multi-hole nozzle.