Safe pressure relief device suitable for online checkout

Abstract

The invention relates to a safe pressure relief device suitable for online checkout. The device mainly comprises at least two sets of inlet pipelines (1), at least two sets of inlet disconnecting valves (2), a pressure container body (4), and at least two sets of common safe pressure relief elements (3) such as safety valves, anti-explosion sheets, fusible plugs, and the like, and the discharge amount of each set of safe pressure relief element (3) in action is larger than or equal to the safe discharge amount of a pressure container. The invention is designed to be simple and novel, not only improves the reliability of the safe pressure relief device, but also repairs, replaces and checks the safe pressure relief device of the pressure container under the condition that production is not interrupted, thereby having very important meanings to departments emphasizing the large-scale and continuous production, such as the chemical engineering, the oil refining, the light industry, and the like.

Description

technical field [0001] The invention relates to the technical field of pressure vessel safety, in particular to a safety pressure relief device suitable for online verification. Background technique [0002] Pressure vessels are widely used in production technology. Traditional sectors such as chemical industry, oil refining, light industry, pharmaceuticals, and food are inseparable from pressure vessels, and they are the key equipment necessary for these sectors. A pressure vessel is a type of pressure-bearing equipment. In order to ensure the safe operation of pressure vessels and prevent equipment accidents due to overpressure, in addition to fundamentally taking measures to eliminate or reduce various factors that may cause overpressure in pressure vessels, installing safety pressure relief devices is a key measure. [0003] Safety pressure relief devices can be divided into valve type, fracture type, melting type and combination type according to their working principl...

AI Technical Summary

Problems solved by technology

First, if a part of the safety pressure relief device fails for some reason, the entire safety pressure relief device will lose its original function

For example: the spring of the spring safety valve is rusted, so that the safety valve cannot be opened under the specified pressure, and the function of pressure relief and protection of the pressure vessel cannot be completed; second, the traditional safety pressure relief device is difficult to operate without interrupting production. Realize the repair, replacement and verification of the safety pressure relief device of the pressure vessel, that is, it is difficult to realize the repair, replacement and verification of the safety pressure relief device of the pressure vessel online

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