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Valve grease injection tool

A technology of grease injection and tools, which is applied to the device and coating of the surface coating liquid, which can solve the problem of inability to adjust the grease injection flow rate, monitor the grease injection pressure, complex structure and operation process of the grease injection tool, and affect the sealing grease lubrication Effect and other issues, to achieve the effect of good reliability, reduce the number of parts and expand the scope of application

Active Publication Date: 2021-12-07
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to: aim at the grease injection work of the existing outdoor environment valves in gas mining and transportation stations. The technical problem that affects the lubrication effect of the sealing grease on the sealing surface is relatively large, and a valve grease injection tool with a simple structure, which can adjust the grease injection flow in real time to realize the grease injection pressure monitoring and is less affected by the temperature environment is provided.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] like Figure 1-9As shown, a valve grease injection tool includes a confluence mechanism 1 and a grease injection cylinder 2 that are rotatably connected. Several flow channels are arranged in the confluence mechanism 1. The confluence mechanism 1 includes a confluence head 11 and an orifice plate 12. The orifice plate 12 is detachably connected to the confluence head 11, the orifice plate 12 is provided with a plurality of through holes 121 with different apertures, the confluence head 11 is provided with a channel 111, and the through hole 121 is connected to the channel 111 to form the flow path, the grease injection cylinder 2 is provided with a grease injection channel 3, the grease injection channel 3 is provided with a flow regulator 6, and the flow regulator 6 is provided with a The selection hole 63 communicated with the flow channel, coaxially rotate the confluence mechanism 1 and the grease injection cylinder 2, the selection hole 63 can communicate with the s...

Embodiment 2

[0046] like Figure 1-9 As shown, a valve grease injection tool in this embodiment has the same structure as that in Embodiment 1, except that the grease injection head 5 can be engaged with the confluence mechanism 1 .

[0047] In this embodiment of a valve grease injection tool, the snap connection is a quick connection structure realized by the cooperation of the elastic member 51, the ball 52 and the chute 53. Since the grease injection head 5 and the confluence mechanism 1 are snap connected, the change The threaded connection mode of the grease injection head 5 in the original grease injection tool can be realized, and the rapid assembly, disassembly and replacement of the grease injection head 5 can be realized, and the operation process is further simplified.

Embodiment 3

[0049] like Figure 1-9 As shown, a valve grease injection tool of this embodiment has the same structure as that of Embodiment 2, the difference is that: the inner wall of the grease injection cylinder 2 is provided with a ring groove 21, and the ring groove 21 corresponds to the grease injection cylinder 2 A first auxiliary channel 22 is provided inside, and the first auxiliary channel 22 is used to connect an external liquid supply mechanism or an air supply mechanism or a grease injection mechanism. The communication groove 66 of the above-mentioned grease injection channel 3.

[0050] In the valve grease injection tool of this embodiment, preferably, the annular groove 21 is set in the second channel 31 of the grease injection channel 3, and the communication groove 66 is set on the adjustment rod 62, so that the operating mechanism 9 When the flow regulator 6 is driven to move along the grease injection channel 3 until the communication hole 65 communicates with the rin...

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Abstract

The invention relates to the technical field of petroleum and natural gas pipeline valve maintenance, in particular to a valve grease injection tool which comprises a confluence mechanism and a grease injection cylinder which are rotationally connected, and further comprises a pressure monitoring mechanism, a plurality of runners are arranged in the confluence mechanism, a grease injection channel is arranged in the grease injection cylinder, and the confluence mechanism and the grease injection cylinder are coaxially rotated. The grease injection channel can communicate with one of the flow channels; and the pressure monitoring mechanism is used for monitoring the pressure in the grease injection channel, so that the grease injection flow can be adjusted by adjusting the grease injection channel to communicate with different runners, the grease injection flow can be adjusted in real time in the grease injection process, the operation procedure is simple, meanwhile, the overpressure condition is effectively avoided, it is guaranteed that the grease injection process is smoothly carried out, one grease injection tool can meet various valves with different sealing grease demands, the application range of the single grease injection tool is expanded, the number of parts is reduced, and the use reliability is good.

Description

technical field [0001] The invention relates to the technical field of oil and gas pipeline valve maintenance, in particular to a valve grease injection tool. Background technique [0002] The valve is an indispensable opening and closing mechanism for the normal operation of the gas transmission station. Regular grease injection to the valve is a key measure to reduce the wear of the valve sealing surface and improve the service life of the valve. It is related to whether the internal leakage and external leakage of the valve can be eliminated in time. Potential safety hazards, an important operation to ensure the normal operation of production, valve grease injection work is mainly carried out with a complete set of grease injection tools. [0003] The design pressure of the existing grease injection tools for gas production and transportation stations is generally 40-70MPa, and the length of the connecting hose is about 5m. There are ten main structures and twenty-three s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B05C17/005
CPCB05C17/00593B05C17/00509B05C17/0052
Inventor 程海华向鹏赵洪波王晓琴陈波张学强汪肖宇江凯彬米晓杨兴飞陈涛彭辉杨雷
Owner CHINA PETROLEUM & CHEM CORP
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