High-pressure pump for high-pressure rotary jet grouting to provide high-pressure power for new buildings, highways, high-speed rail, underground railways and other soft ground strengthening reinforcement, uneven settlement of old buildings, reservoir dam and under the building High-pressure pump can also be used in high-pressure water intake to avail rock breaking coal, underground hydraulic prop for liquid supply, anchoring water conservancy expansion Metal anchor pumps high-pressure water, large underground dredging cleaning dredging, high-pressure water jet perforation or other areas need to use high-pressure liquid as the driving force. High-pressure pump (Figure 1) High-pressure pump according to the media can be divided into: high-pressure piston pump, high pressure reciprocating pump, high pressure electric pressure test pump, pressure washer. High-pressure piston pump for petroleum, chemical, fertilizer industry as a process pump, metallurgy, rolling mill of high-pressure water descaling, construction, shipbuilding, sugar, paper, chemical and other industries high-pressure water cleaning descaling, oil field water injection, boilers Water supply, the power source of hydraulic machinery, as well as food, pharmaceutical and other parts of the need to produce high-pressure liquid, the transmission medium is fluid without solid particles. High pressure piston pump, including high pressure three piston pump, this pump is all horizontal, it is more stable than vertical, vibration, assembly and disassembly, easy maintenance. Also known as three-cylinder pump, with a uniform flow, pressure pulsation is also reduced accordingly. High pressure reciprocating pump pressure should generally be between 10MPa ~ 100MPa. It is a positive displacement pump, with the help of the cyclical changes in the volume of the working chamber to achieve the purpose of conveying liquid. The mechanical energy of the prime mover can be directly transformed into the pressure energy of the liquid delivered by the pump. The capacity of the pump depends only on the variation of working chamber volume and its The number of changes in the unit of time, in theory, has nothing to do with the discharge pressure. Reciprocating pump is mainly suitable for high pressure and low flow, requiring a constant or constant pump flow, conveying a variety of different media in proportion, or require inhalation performance, or require self-priming performance of the occasion. High-pressure electric pressure test pump has the advantages of high degree of "three chemical", long service life, stable performance, convenient operation, flexible movement and light weight for hydrostatic test and chamber in all kinds of pressure vessels, pipes, valves and steam boilers Get high pressure, liquid, etc., in the initial stage of the test pressure with a larger flow rate, can quickly fill and step-up to shorten the test time. When the pressure exceeds 0.6Mpa, in order to make the pressure test process can be smoother and steadier, the flow will be reduced automatically. There are two kinds of flow in the pump at high and low pressure, and can change automatically. Where the rated discharge pressure can be carried out Any numerical hydrostatic test. High pressure cleaning pump is an efficient, energy-saving cleaning equipment for chemical plants, thermal power plants, sugar mills, paper mills and other industries heat exchangers or reactors and a variety of pipeline clearance, can also be used for sand casting, a variety of Vehicles, aircraft, ships, slaughterhouse cleaning. High pressure cleaning pump accessories are: high pressure water gun, foot valve, three-dimensional rotary nozzle, high pressure resin pipe, high pressure rubber pipe, porous nozzle.