Device for maintaining and detecting valve according to pressure intensity characteristic

Abstract

The invention relates to the technical field of valve maintenance and detection and discloses a device for maintaining and detecting a valve according to the pressure intensity characteristic. The device comprises a valve body. The two sides of the valve body are both fixedly connected with seal rings. An adjusting box is fixedly connected to the interior of each seal ring. Each adjusting box is internally provided with a thread. The surface of each thread is fixedly connected with a rotary body. The surface of each rotary body is provided with air holes. A hollow channel is fixedly connectedto the interior of the valve body and located on the surfaces of the seal rings. The surface of the hollow channel is movably connected with a threaded pipe. Sealing grease flows into the seal rings through the rotary bodies. According to the amount of the filled sealing grease, the rotary bodies are moved through handles to control the number of the opened air holes, the amount of the sealing grease flowing past is adjusted, and the uniform and quantitative grease filling effect is achieved. When the excessive sealing grease flowing into the hollow channel, the sealing grease can exceed the weight borne by a bearing net and then flows out from the hollow channel without affecting normal use of the valve body.

Description

technical field [0001] The invention relates to the technical field of valve maintenance and detection, in particular to a device for maintaining and detecting valves using pressure characteristics. Background technique [0002] The valve is a device used to control the direction, pressure and flow of the fluid in the fluid system. During the daily maintenance of the valve, it is required that the valve should be in a dry and ventilated room, and both ends of the passage must be blocked. The long-term stored valve should be checked regularly , Remove the dirt, and apply anti-rust oil on the processing surface. [0003] After the valve is installed, it should be inspected regularly. Correct, orderly and effective maintenance will protect the valve, so that the valve can function normally and prolong the service life of the valve. Among them, grease injection is essential in the maintenance of the valve. [0004] Traditional valves are usually equipped with a grease nozzle. W...

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Problems solved by technology

[0004] Traditional valves are usually equipped with a grease nozzle. When performing grease injection maintenance on the valve, before the grease injection, set the valve to a fully closed or fully open state to maintain a certain pressure inside the valve body or discharge all the air. , and then clean the valve seal, but the traditional valve grease injection integrated equipment cannot effectively clean the seal, and cannot guarantee the stability of the internal pressure of the valve body; in addition, the grease injected into the valve will block the grease injection when it stops flowing. mouth, resulting in uneven fat output, so a maintenance and detection valve equipment using pressure characteristics came into being

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