Normal temperature and low temperature flammable and explosive medium emptying device

Abstract

A normal temperature and low temperature flammable and explosive medium emptying device comprises a concrete foundation (1), a profile steel support (2), a collecting box (3) and an emptying cylinderassembly (4); the profile steel support (2) is fixed on the concrete foundation (1); the collecting box (3) is fixed on the profile steel support (2); the emptying cylinder assembly (4) is fixed on the collecting box (3); the emptying cylinder assembly (4) comprises an emptying cylinder (41), a shock tube structure (42), a medium discharge port (43), a nitrogen mixing port (44) and a silencing device (45); and after a liquid or gas flammable and explosive medium enters from the medium discharge port (43), the gas flammable and explosive medium and nitrogen gas entering from the nitrogen mixingport (44) are mixed and then discharged from the silencing device (45), and the liquid flammable and explosive medium passes through the shock tube structure (42), then enters the collecting box (3),becomes a gas flammable and explosive medium after absorbing heat in the collecting box (3) and then is mixed with nitrogen gas entering from the nitrogen mixing port (44) and discharged from the silencing device (45).

Description

technical field [0001] The invention belongs to the technical field of evacuating flammable and explosive media, and relates to a device for evacuating a medium, in particular to a device for evacuating flammable and explosive media at room temperature and low temperature. Background technique [0002] With the advantages of low cost, non-toxic, non-polluting, and reusable, the liquid oxygen methane rocket engine has become one of the liquid rocket engines that countries around the world have rushed to research in recent years. Carrying out simulation tests on the ground test bench is a necessary part of the engine development process. During the construction of the ground test bench, the safe discharge of flammable and explosive media such as oxygen and methane is one of the key technologies. The existing evacuation method of flammable and explosive gaseous medium is direct high-altitude discharge, and the existing evacuation method of flammable and explosive liquid medium...

AI Technical Summary

Problems solved by technology

This emptying method has the following disadvantages: 1) the discharge port is scattered, and there are many dangerous points; 2) the flow rate of the medium at the discharge port is fast, and the risk is high; 3) the discharged medium is easy to form a mixture with the air within the explosion limit; 4) The discharge noise is large; 5) The collection box for collecting liquid is generally made of a container, and the cost is high; 6) The emptying cylinder assembly is fixed on the top surface of the collection box, which requires high strength and rigidity of the collection box, and the stability of the device is poor

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