A mechanical pressure overload protection device

Abstract

The invention discloses a mechanical pressure overload protector, which comprises a pressure-tapping pipe and a valve, and the pressure-tapping pipe and the valve are sequentially arranged on a pipeline according to the direction of gas flow in the pipeline to be protected; the other end of the pressure-tapping pipe is connected with a guide pipe; the other end of the guide pipe is fixedly connected with a housing; the inner diameter of the third section of the housing is greater than the outer diameter of the guide pipe; an isolating plate and a pressure-transferring structure are sequentially arranged in the third section of the housing according to a direction away from the guide pipe; the pressure-transferring structure is a two-section stepped column, and a holder is sleeved on the pressure-transferring structure. When the pressure in the pipeline exceeds a set value, the mechanical pressure overload protector can quickly close the valve by means of the displacement of an actuating rod converted from the motion of the pressure-transferring structure, a pressure-operated rod and a gear structure; when pressure is recovered, the valve can be quickly opened, and thereby the pressure overload protection for the pipeline can be effectively implemented; meanwhile, the set pressure can be regulated by adjusting a pressure regulation nut; and the mechanical pressure overload protector has the advantages of simple principle and simple and reliable structure, and is easy to put into practice.

Description

technical field [0001] The invention belongs to the field of measuring equipment, and in particular relates to a mechanical pressure overload protection device. Background technique [0002] Instruments, valves and other devices play a very important role in industrial systems, but conventional instruments have very limited ability to withstand overpressure. In the pressure pipeline system, often due to human error in operation, or abnormal pressure shocks and fluctuations in the pressure pipeline, it is easy to generate destructive forces far exceeding the normal pressure of the pipeline, making sensitive equipment such as instruments and valves in the pipeline system Damaged due to overvoltage, bringing unsafe hidden dangers to the system. Therefore, it is very necessary to study a pressure overload protection device to solve the safety hazard of sensitive equipment being damaged due to overpressure. Contents of the invention [0003] In order to prevent the sensitive ...

AI Technical Summary

Problems solved by technology

In the pressure pipeline system, often due to human error in operation, or abnormal pressure shocks and fluctuations in the pressure pipeline, it is easy to generate destructive forces far exceeding the normal pressure of the pipeline, making sensitive equipment such as instruments and valves in the pipeline system Damaged due to overvoltage, bringing unsafe hidden dangers to the system

Therefore, it is very necessary to study a pressure overload protection device to solve the safety hazard of sensitive equipment being damaged due to overpressure

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