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Non-leakage reversed flow type plunger pump

A plunger pump, no leakage technology, applied in the field of reciprocating pumps, can solve the problems of ordinary plunger reciprocating pumps such as limited application range, wear medium, leakage, etc., and achieve huge economic benefits, positive social benefits, stable working pressure, and energy saving medium effect

Inactive Publication Date: 2008-07-23
DALIAN LAUREL LIQUID EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the plunger-type reciprocating pumps commonly used in the field are all ordinary plunger pumps. After the piston is pulled for a certain period of time, the fillers filled by the existing plunger pumps will wear out and gaps will appear, causing the medium to break out. Leakage, so the application range of ordinary plunger reciprocating pumps is greatly limited

Method used

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  • Non-leakage reversed flow type plunger pump
  • Non-leakage reversed flow type plunger pump
  • Non-leakage reversed flow type plunger pump

Examples

Experimental program
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Embodiment Construction

[0016] The present invention will be further described below in conjunction with Figures 1, 2, and 3.

[0017] The plunger pump is composed of pump inlet 1, inlet check valve 2, inner packing 4, outer packing 6, packing gland 7, plunger 8, pump body 9, working chamber 10, outlet check valve 11 and pump outlet 12.

[0018] The leakage-free return mechanism of the plunger pump is composed of a return pipe 3 and a spacer ring 5.

[0019] Both the outer surface and the inner surface of the spacer ring 5 have grooves, namely the spacer ring outer surface groove 14 and the spacer ring inner surface groove 16, and 8 through holes are evenly distributed at the bottom of the groove, namely the spacer ring groove overflow hole 15 . The spacer ring 5 is installed between the inner packing 4 and the outer packing 6 of the plunger pump body 9; both ends of the return pipe 3 have pipe joints respectively connected to the pump body 9 and the pump inlet 1 corresponding to the installation positio...

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Abstract

The invention relates to a leakage-free reflow piston pump as a reciprocating pump used in liquid transportation, in particular to a leakage-free reflow device used in the piston pump. The structure is that: a plurality of spacing rings are arranged between inner side packing of the piston pump and the outside packing; a groove is arranged on internal surface and external surface of the spacing ring; a plurality of round through holes are evenly distributed on the bottom of the groove; a plurality of pipe joints are arranged at both ends of a reflow pipe and are respectively connected with a pump body and an inlet pipe of the pump corresponding to the installation position of the spacing ring; leaking mediator from the inner side of the piston pump is transported to the inlet pipe of the pump by a close loop composed of a spacing ring and the reflow pipe. The leakage-free reflow piston pump as a reciprocating pump used in liquid transportation has an advantage that the mediator in the reflow pipe is inhaled into the working cavity of the piston pump when the piston pump is working, so the problem of mediator leakage outside the pump due to wear of the seal packing is effectively prevented.

Description

Technical field [0001] The invention relates to a reciprocating pump applied to liquid transportation, in particular to a non-leakage backflow mechanism applied to a plunger type reciprocating pump. Background technique [0002] At present, the plunger reciprocating pumps commonly used in the field are all ordinary plunger pumps. Because the fillers filled in the existing plunger pumps are pulled by the piston for a certain period of time, the filler wears and gaps appear, which causes media to occur. Leakage, so the application range of ordinary plunger reciprocating pump is greatly restricted. In order to overcome the existing problems, it is very necessary to develop a new type of non-leakage reflux plunger pump. Summary of the invention [0003] The purpose of the present invention is to overcome the defect that the packing used for sealing of the ordinary plunger reciprocating pump described above is easy to leak the medium after being worn, and to provide a backflow mechan...

Claims

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Application Information

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IPC IPC(8): F04B7/00F04B53/02F04B53/00
Inventor 李广松
Owner DALIAN LAUREL LIQUID EQUIP
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