Explosion valve

Abstract

The invention provides an explosion valve, and belongs to the technical field of safety pressure relief. The explosion valve comprises a gland, a rupture disc and a casing, the gland is provided with a first outflow channel, the rupture disc covers an outlet of the first outflow channel, a part of the rupture disc is supported on the gland, an annular nick is located on the area, used for being supported on the gland, of the rupture disc, one end of the casing is abutted against the rupture disc and is in sealed connection with the gland, one end, used for being abutted against the rupture disc, of the casing makes contact with the outer area of the annular nick of the rupture disc, a second outflow channel used for communicating with the first outflow channel is arranged in the casing, and the second outflow channel and the first outflow channel are concentrically arranged. According to the position relation of the annular nick in the explosion valve, when one side, facing the casing, of the rupture disc is subjected to detection pressure, the deformation position of the rupture disc is located in the annular nick, the rupture disc does not deform along the annular nick, and the influence of air tightness detection on the loading capacity of the rupture disc can be avoided.

Description

[0001] Information about divisional applications [0002] This case is a divisional application. The parent case of this divisional case is an invention patent application with an application date of March 13, 2020, an application number of 202010177345X, and an invention title of "Radiation Cooling Thrust Chamber Body Structure for Liquid Rocket Engine". technical field [0003] The invention relates to the technical field of pressure relief, in particular to a burst valve. Background technique [0004] The burst valve is a safety pressure relief device used to protect the pressure vessel from damage due to overpressure. It has the advantages of simple structure and good sealing performance. It is suitable for the working environment where the viscosity of the working medium is high, the corrosion performance is strong and the pressure rises sharply, and ordinary safety valves cannot do it. [0005] Before the blasting valve is used, it is necessary to test the air tight...

AI Technical Summary

Problems solved by technology

[0005] Before the blasting valve is used, it is necessary to test the air tightness of the blasting valve; since the bursting disc inside the blasting valve is provided with a notch for blasting, under the action of the detection pressure, the bursting disc will deform along the notch, reducing the risk of blasting. The pressure bearing capacity of the sheet under normal working conditions

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