Partial stroke testing method for gas safety diffuse water seal valve for coke oven gas collector

Abstract

The invention provides a partial stroke testing method for a gas safety diffuse water seal valve for a coke oven gas collector. The partial stroke testing method comprises the following steps: arranging a plurality of pressure sensors in the coke oven gas collector and calculating maximal pressure P' according to a plurality of pressure measuring points P_1, P_2 until P_N; calculating the minimumwater seal liquid level height H0 at the position of no gas leakage according to maximum pressure P'; calculating a maximum rotation angle alpha in the stroke test according to the minimum water sealliquid level height H0, the actual length L of a valve plate, a dip angle beta of a baffle and normal water seal height Hmax. According to the partial stroke testing method disclosed by the invention,stroke test of the diffuse water seal valve can be performed at fixed period, and the phenomena of corrosion or blockage caused by long-time inaction of the valve can be prevented; when the pressureof the gas collector pressure is overhigh, the diffuse valve can be opened in time; in the stroke testing process of the valve, the opening degree of the valve is increased as much as possible while no gas breaks through a water seal cover and the testing adequacy is ensured.

Description

technical field [0001] The invention relates to the technical field of coke oven gas collection pipe gas release and ignition, in particular to a partial stroke test method of a coke oven gas collection pipe gas release water seal valve. Background technique [0002] Excessive pressure of the coke oven gas collection pipe will cause smoke from the coke oven and affect the normal operation of the chemical production process. plays an important role in. In the past application, the gas release valve only operates when the system needs to release the ignition. Since the gas contains a large amount of tar and naphthalene, the valve is prone to blockage and corrosion if it is not operated for a long time, which often leads to the valve when the pressure of the gas collection pipe is too high. If it cannot be opened in time, it will affect the normal work of the subsequent process, and even cause a large amount of gas to escape, which will have a serious impact on production and ...

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problems mentioned in the background technology, the present invention provides a partial stroke test method of the coke oven gas collecting pipe gas safe release water seal valve, which can periodically test the stroke of the release water seal valve to prevent the valve from rusting or clogging if it does not operate for a long time To ensure that the relief valve can be opened in time when the pressure of the gas collecting pipe is too high; during the valve travel test, while ensuring that no gas breaks through the water seal, increase the valve opening as much as possible to ensure the adequacy of the test

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