Pipe explosion simulation device based on fluid blocking test and test method thereof

Abstract

The invention belongs to the technical field of fluid blocking tests, and particularly relates to a pipe burst simulation device based on a fluid blocking test and a test method of the pipe burst simulation device. The pipe bursting simulation device comprises an outer pipe body and a crushing diaphragm located in a pipe cavity of the outer pipe body, the device further comprises a bursting disc, the bursting disc and the crushing diaphragm are sequentially arranged along the pipe cavity of the outer pipe body, and therefore a closed pressure adjusting cavity is formed between one section of the pipe cavity of the outer pipe body between the bursting disc and the crushing diaphragm. The pressure adjusting cavity is communicated with a pressure air source or a pressure liquid source through a flow channel penetrating through the pipe wall of the outer pipe body. The device has higher controllability on pipe explosion pressure and pipe explosion time, and has the advantages of simplicity, convenience and rapidness in use and compact and reasonable structure.

Description

technical field [0001] The invention belongs to the technical field of fluid blocking test, in particular to a pipe burst simulation device based on a fluid blocking test and a test method thereof. Background technique [0002] The purpose of the fluid blocking test is to determine the key performance parameters of the check valve, to verify the emergency shut-off capability of the valve after the reverse flow occurs under the condition of a water loss accident in a nuclear power plant, and to be conservative enough to the pipeline pressure fluctuation level caused by the instantaneous closure of the valve 's estimate. In the fluid blocking test, a pipe burst simulation device is required to meet the requirements of water loss spraying. The basic principle of the traditional burst pipe simulation device is to use a certain kind of diaphragm, and fix the diaphragm between the outlet of the intake port and the high-pressure gas supply pipeline, and the diaphragm ruptures to f...

AI Technical Summary

Problems solved by technology

However, due to real pipe burst accidents, the initial dehydration spraying time is about milliseconds, and the burst pipe simulation devices used in the existing public fluid blocking test technology are all conventional single-diaphragm structures, and the action time is slow and explosive. The tube time is difficult to control, obviously unable to meet the test requirements of millisecond level, and needs to be solved urgently

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