Application of automatic reciprocating hydraulic cylinder in hydraulic high-pressure pump?

I. Introduction Today, hydraulic systems are widely used in various mechanical equipment in various industries. As a transmission technology, hydraulic mode has the following advantages compared with traditional mechanical mode: 1, which can generate great force and is easy to control; 2. Large-range stepless speed change; 3, easy to prevent overload and high safety; 4, small size, large output, and free choice of installation location; 5. The control of output force is simple and accurate, and can be controlled remotely. Although the hydraulic system has the above advantages, the automatic reciprocating problem of its system has not been effectively and reliably solved. In many industries, such as mud pumps in geological drilling equipment, high-pressure pumps in seawater desalination equipment, fire pumps in high-rise buildings, etc. These devices need to continuously output high-pressure and large-flow fluid media. Because the automatic reciprocating problem of hydraulic system is not solved, the traditional mechanical mode is still adopted, which leads to its huge volume, high energy consumption and low efficiency. The "hydraulic automatic reciprocating cylinder" of this project is a national utility model patent, which successfully solves the automatic reciprocating problem of the hydraulic system and makes it a reality for the above equipment to adopt hydraulic technology. This technology is to redesign the oil cylinder, which is the main executive element in the hydraulic system, supplemented by an external control valve to realize the automatic reciprocating motion of the oil cylinder, which is reliable in work, simple in structure and low in cost. Ii. Scope of application 1. Hydraulic mud pump for geological drilling The existing mud pump uses motor to drive crankshaft and connecting rod to push piston to output mud. This structure has been used for many years, and the technology is backward, which makes the mud pump huge, the output mud pressure fluctuates greatly, the flow rate is unstable, the maximum power of the mud pump is limited, and the general pressure can only reach 3 ~ 4 MPa, so the flow rate is not easy to make very large. Under the same output power, the volume of the hydraulic mud pump manufactured by this patented technology is only 1/2 ~ 1/3 of the existing mud pump, and the energy consumption is about 80% of the existing mud pump. Although the manufacturing cost increases slightly, the design of hydraulic mud pump has no power limit, the output pressure can reach tens of Mpa, the flow rate can be infinitely expanded, and the output pressure and flow rate are stable. 2. The hydraulic high-pressure pump for seawater desalination adopts reverse osmosis technology, which is a seawater desalination technology with high efficiency and easy to use on a large scale, and has broad application prospects in today's water shortage. High pressure pump is the key equipment in the application of reverse osmosis seawater desalination technology. The existing high-pressure pump is basically a mechanical structure. Commonly used pump types are single-stage high-speed centrifugal pump, plunger pump and multi-stage centrifugal pump. Generally, single-stage centrifugal pump has the lowest efficiency and piston pump has the highest efficiency, and multi-stage centrifugal pump is often used in large-scale systems. In China, there is no professional seawater desalination high-pressure pump manufacturer. The main reason is that in order to make the high-pressure pump achieve high efficiency, it is necessary to make some important parts achieve high processing accuracy, which requires very professional and expensive processing equipment and high processing costs. Therefore, the price of imported high-pressure pump is very high. Compared with mechanical high-pressure pump and piston pump, the working efficiency of hydraulic automatic reciprocating cylinder high-pressure pump is greatly improved, and high power is easy to realize. Compared with imported similar products, the higher the pump power, the lower the production cost and the greater the price drop. 3, high pressure cleaning equipment 4, high-rise building water supply (fire pump)

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