Application of hydraulic automatic reciprocating cylinder on hydraulic high pressure pump

February 28, 2019

I. INTRODUCTION Today, hydraulic systems are widely used in a variety of mechanical equipment in various industries. As a transmission technology, hydraulic pressure has the following advantages over traditional mechanical methods:

1, can produce a great deal of force, and easy to control;

2, can be infinitely variable in a wide range;

3, it is easy to prevent overload, safety;

4, small size and large output, the installation position can be freely selected;

5, the output force control is simple and accurate, remote control.

Although the hydraulic system has the above advantages, the system's automatic reciprocating problem has not been effectively and reliably resolved. In many equipment 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 equipment need to continuously output high-pressure, high-volume fluid media because hydraulic pressure is not solved. The automatic reciprocating problem of the system still adopts the traditional mechanical method, resulting in a huge volume, a lot of energy consumption, and low efficiency.

The project “Hydraulic Automatic Reciprocating Oil Cylinder” is a national utility model patent, successfully solving the problem of automatic reciprocating of the hydraulic system, making the above equipment use hydraulic technology become a reality. This technology is a redesign of the hydraulic cylinder's main actuator - the cylinder, auxiliary to the external control valve, to achieve the automatic reciprocating cylinder, and reliable, simple structure, low cost.

Second, the scope of application 1, geological drilling hydraulic mud pump existing mud pump, is to use the motor to drive the crankshaft, connecting rod, to promote the piston output mud. This type of structure is used for many years, and the technology is backward, making the mud pump bulky, the output mud pressure fluctuations, flow instability, and the maximum power of the mud pump is limited, the general pressure can only reach 3 ~ 4Mpa, the flow is not easy to do very large. With the hydraulic mud pump manufactured by using the patented technology, the volume of the mud pump at the same output power is only 1/2 to 1/3 of that of the existing slurry pump, and the energy consumption is about 80% of the existing slurry pump. Although the manufacturing cost is slightly increased, the hydraulic mud pump has no power limitation in design, the output pressure can reach several tens of MPa, the flow can be infinitely expanded, and the output pressure and flow rate are stable.

2. The use of reverse osmosis technology in seawater desalination hydraulic high-pressure pumps is a seawater desalination technology that is highly efficient and easy to use on a large scale. Today, water resources are in short supply and have broad application prospects. The high pressure pump is a key equipment in the desalination seawater desalination technology application. The existing high-pressure pump is basically a mechanical structure. The types of commonly used pumps are single-stage, high-speed centrifugal pumps, plunger pumps and multi-stage centrifugal pumps. In general, the single-stage centrifugal pump has the lowest efficiency and the plunger pump has the highest efficiency. In large systems, multi-stage centrifugal pumps are used. In China, there are no professional seawater desalination high pressure pump manufacturers. The main reason is that in order to achieve high efficiency of the high-pressure pump, it is necessary to make some important components reach high processing precision, which requires very specialized and expensive processing equipment and a large processing cost. Therefore, the price of imported high-pressure pumps is very high.

Hydraulic automatic reciprocating cylinder high-pressure pump, compared with the mechanical high-pressure pump, piston pump work efficiency is greatly improved, high power is easy to achieve. Compared with imported products of the same type, the greater 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)

In short, the automatic reciprocating hydraulic system broadens the application range of the hydraulic system, making the hydraulic system more efficient, flexible, high-powered, and low-cost advantages. After the application, it will bring huge economic benefits and social benefits to the enterprise. benefit.

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