Differential pressure energy recovery pump
An energy recovery, differential pressure technology, applied in fluid pressure actuation devices, fluid pressure actuation system components, servo meter circuits, etc., can solve problems such as unsatisfactory sealing effect, high pressure energy leakage, low energy recovery rate, etc. , to achieve the effect of low power consumption, extended working life and increased flexibility
Active Publication Date: 2018-05-29
SHANGHAI INST OF SPACE PROPULSION
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Problems solved by technology
The energy recovery device used in the existing reverse osmosis seawater desalination system, because the sealing effect of the piston and the piston rod is not ideal, there is a problem of high-pressure energy leakage, and the connection structure design of the piston and the piston rod has limitations, so it has energy recovery The shortcomings of low efficiency, short service life and inconvenient maintenance
Method used
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[0023] The present invention will be described in detail below in conjunction with specific embodiments. The following examples will help those skilled in the art to further understand the present invention, but do not limit the present invention in any form. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of the present invention. These all belong to the protection scope of the present invention.
[0024] like Figure 1 to Figure 5 As shown, the differential pressure energy recovery pump of the present invention includes a piston assembly, a connecting base assembly, a cylinder head 1, a cylinder body 3, and a connecting rod 7. The two ends of the cylinder body 3 are respectively attached to the cylinder head 1 and the connecting base 5, The cylinder body 3 is in close contact with the O-ring 2. The O-ring 2 is located in the groove between the cylinder head 1 and the connection base 5. The ...
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The invention provides a pressure difference type energy recycling pump which comprises a piston assembly and the like; the two ends of a cylinder body cling to cylinder covers and connecting table bases separately; the cylinder body clings to O-shaped rings; the O-shaped rings are positioned in grooves between the cylinder covers and the connecting table bases; connecting rods sequentially pass through the connecting table bases and the cylinder covers; the connecting rods are used for fixing the cylinder covers, the cylinder body and the connecting table bases through fasteners; the piston assembly comprises a piston and the like; piston sealing rings are positioned in grooves in the two ends of the piston; the two ends of each piston sealing ring are separately fixed through a piston outer baffle late and a piston inner baffle plate; piston wear-resisting rings are positioned in grooves of the piston; magnetic rings are firmly buckled in grooves of the piston; adapter rings cling to inner holes of the piston; and the adapter rings are positioned between the piston and the piston rod. The pressure difference type energy recycling pump provided by the invention can effectively reduce energy consumption of a reverse osmosis seawater desalination system, prolongs the service life of the reverse osmosis seawater desalination system and reduces leakage of high-pressure energy, and also has the advantages of low manufacturing cost, small noises, a long service life, excellent sealing performance, convenience in maintenance and a reasonable structure.
Description
technical field [0001] The invention relates to a recovery pump, in particular to a differential pressure energy recovery pump. Background technique [0002] The differential pressure energy recovery pump has the advantages of low energy consumption, high performance, and easy maintenance. It adopts advanced sealing forms to ensure the sealing effect of the piston and piston rod, reducing the leakage of high-pressure energy; at the same time, the connection structure of the piston and piston rod is flexibly designed to reduce The friction between the small piston and the piston rod and the cylinder body; and the reasonable structure is arranged on the cylinder body and the piston, which increases the convenience of maintenance. The energy recovery device used in the existing reverse osmosis seawater desalination system, because the sealing effect of the piston and the piston rod is not ideal, there is a problem of high-pressure energy leakage, and the connection structure de...
Claims
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IPC IPC(8): F15B21/14
CPCF15B21/14F15B2211/88
Inventor 刘志杰邱中华沈俊陈志坚侯辉
Owner SHANGHAI INST OF SPACE PROPULSION