Oil cooling structure for piston rod of piston compressor

A technology of cooling structure and piston rod, which is applied in the direction of liquid variable displacement machinery, mechanical equipment, variable displacement pump components, etc. It can solve the problems of affecting the normal operation of the compressor, easy scaling of the packing water channel, and unsatisfactory cooling effect, etc. , to achieve the effect of reducing unplanned downtime, reducing maintenance workload, and reducing cleaning workload

Inactive Publication Date: 2006-05-03
WUXI COMPRESSOR CO LTD
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  • Abstract
  • Description
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AI Technical Summary

Problems solved by technology

Because the cooling part of this structure is too far away from the friction surface between the piston rod 1 and the packing (including the sealing ring 3 and the locking ring 4), the cooling effect is not ideal, and the processing of the packing is complicated.
Due to the poor cooling effect, the service life of the packing is short, which will directly affect the normal operation of the compressor

Method used

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  • Oil cooling structure for piston rod of piston compressor
  • Oil cooling structure for piston rod of piston compressor

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Embodiment Construction

[0012] Below the present invention will be further described in conjunction with the embodiment in the accompanying drawing:

[0013] The present invention is mainly composed of retaining ring 1, joint 2, oil guide pipe 3, packing (sealing ring 4 and locking ring 5), stuffing box 6, piston rod 7, throttling sleeve 8, gland 9 and pressure plate 10, etc.

[0014] The oil-through cooling structure of the present invention is to drill a cooling deep hole from the tail end of the piston rod 7, insert an oil guide pipe 3 in the cooling deep hole, and feed the cooling oil to circulate and cool. The oil guide pipe 3 is pressed on the end of the piston rod 7 by the joint 2 and the retaining ring 1, and the other end of the oil guide pipe 3 is provided with a flanging for support, so as to ensure that the oil guide pipe and the deep hole of the piston rod 7 are basically concentric. Packing (comprising sealing ring 4 and locking ring 5) is contained in the stuffing box 6, and can set mu...

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Abstract

The invention discloses a piston rod connection oil cooling structure of piston type compressor in the cooling device technique domain, which comprises the following parts: sealing ring, locking ring, filling box and piston rod, wherein the cooling hole is open on the rear of piston rod with an oil guiding pipe in the cooling hole to do circulating cooling through the cooling oil; the oil guiding pipe is pressed on the end of piston rod through the connector, which is pressed on the filling box and throttle case through gland and clamp plate. The invention guarantees the normal operation, which avoids the ineffective phenomenon of coolant flow and sealing due to friction and high temperature.

Description

technical field [0001] The invention relates to an oil-through cooling structure for a piston rod of a piston compressor, in particular for cooling the stuffing of a piston compressor, and belongs to the technical field of cooling devices. Background technique [0002] Piston compressors are general-purpose machinery widely used in various industries. Among them, oil-free lubricated compressors are compressors with no oil in the gas. If the life of the wearing parts can reach half a year or more It is welcomed by users in various industries. Oil-free lubricated compressor packing materials are mainly engineering plastics, such as polytetrafluoroethylene or carbon fiber filled with polytetrafluoroethylene. Due to the poor thermal conductivity of tetrafluoroethylene, even if fillers are added to improve its thermal conductivity, it is still not compatible with metals. match. Therefore, temperature is a threat to the service life of the sealing ring. To ensure the stable oper...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04B39/06
Inventor 黄顺良朱建明蒋霄松朱泽轩
Owner WUXI COMPRESSOR CO LTD
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