Medium isolation reciprocating plunger pump and delivery system with same

A medium isolation and plunger pump technology, which is applied to the components of the pumping device for elastic fluids, pump components, variable displacement pump components, etc., can solve the problems of poor cooling effect, pollution of conveying medium, and large heat generation. , to achieve reliable operation, avoid wear, and enhance applicability

Active Publication Date: 2020-02-07
NO 719 RES INST CHINA SHIPBUILDING IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the plunger pump has high requirements on the cleanliness of the medium, so it is widely used in hydraulic systems. For the delivery system, when the plunger pump transports high-pressure liquid, the heat generation is relatively large, and the cooling effect of the existing plunger rod cooling device is poor and The cooling medium is easy to cause pollution to the conveying medium, and its application has certain limitations

Method used

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  • Medium isolation reciprocating plunger pump and delivery system with same

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Embodiment Construction

[0031] figure 1 is a schematic cross-sectional view of a medium-isolated reciprocating plunger pump according to an embodiment of the present invention. like figure 1 As shown, the embodiment of the present invention provides a medium-isolated reciprocating plunger pump, which includes a pump body 10 and a plunger assembly. The plunger assembly has a plunger 21 and a plunger rod 22 connected to the plunger 21 . The pump body 10 defines a conveying medium chamber 11 and a cooling medium chamber 12 arranged at the rear end of the conveying medium chamber 11 . The conveying medium chamber 11 has a conveying medium inlet 111 and a conveying medium outlet 112 . The coolant chamber 12 has a coolant port 121 and a coolant port 122 . The plunger 21 is arranged in the conveying medium cavity 11 , and the plunger rod 22 is installed in the cooling medium cavity 12 .

[0032] The plunger assembly also includes a deformable spacer 30 coaxially arranged with the plunger 21, one end of ...

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Abstract

The invention relates to a medium isolation reciprocating plunger pump and a liquid delivery system with the same. The medium isolation reciprocating plunger pump specifically comprises a pump body and a plunger assembly, wherein the plunger assembly is provided with a plunger and a plunger rod connected to the plunger, a delivery medium cavity and a cooling medium cavity arranged at the rear endof the delivery medium cavity are defined in the pump body, the delivery medium cavity is provided with a delivery medium inlet and a delivery medium outlet, the cooling medium cavity is provided witha cooling medium inlet and a cooling medium outlet, the plunger is arranged in the delivery medium cavity, the plunger rod is arranged in the cooling medium cavity, the plunger assembly further comprises a deformation spacer coaxially arranged with the plunger, one end of the deformation spacer is connected to the plunger, the other end of the deformation spacer is connected to the pump body so as to isolate a to-be-delivered medium from a cooling medium when the plunger moves and form a movable cavity communicating with the cooling medium cavity. The medium isolation reciprocating plunger pump avoids abrasion of a delivery medium itself or contained impurities on the plunger rod and the pump body, and has the characteristic of good cooling effect.

Description

technical field [0001] The invention relates to the technical field of pumps, in particular to a medium-isolated reciprocating plunger pump and a liquid conveying system having the same. Background technique [0002] At present, the plunger pump is widely used. It relies on the reciprocating movement of the plunger in the cylinder to change the container of the sealed working chamber to realize the suction and pressure of the medium. The plunger pump has a high rated pressure and a high volumetric efficiency. However, the plunger pump has high requirements on the cleanliness of the medium, so it is widely used in hydraulic systems. For the delivery system, when the plunger pump transports high-pressure liquid, the heat generation is relatively large, and the cooling effect of the existing plunger rod cooling device is poor and The cooling medium is easy to cause pollution to the conveying medium, and its application has certain limitations. Contents of the invention [00...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04B53/14F04B53/08F04B53/18F04B53/00
CPCF04B53/14F04B53/144F04B53/143F04B53/08F04B53/18F04B53/00
Inventor 毛宏勇范卓姜勇
Owner NO 719 RES INST CHINA SHIPBUILDING IND
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