A gas inlet and outlet device and a gas cabinet with the gas inlet and outlet device

Abstract

The invention provides a gas inlet and outlet device and a gas holder with the same. The gas inlet and outlet device comprises a first pipeline horizontally arranged and a second pipeline vertically arranged, wherein an opening in the lower end of the second pipeline communicates with an opening in one end of the first pipeline for forming a gas inlet and outlet channel; a twisted blade is vertically arranged inside the second pipeline and comprises a blade body, the middle of the blade body is twisted oppositely, and a first gas flow channel and a second gas flow channel both ascending spirally are correspondingly formed in the two sides of the blade body. The gas holder comprises a holder body with an internal cavity and the gas inlet and outlet device. According to the gas inlet and outlet device and the gas holder with the same, eccentric shock to a holder top piston caused by gas streams can be reduced, and the holder top piston is prevented from rotating or shifting.

Description

technical field [0001] The invention relates to the technical field of gas supply and recovery in the metallurgical industry, in particular to a gas inlet and outlet device and a gas cabinet with a side gas inlet and outlet structure. Background technique [0002] The metallurgical industry consumes a lot of energy and easily pollutes the environment. With the rapid growth of the production scale of iron and steel enterprises, the excess gas continues to grow. The gas cabinet plays a role in the dynamic balance of gas supply and demand in the gas system and stabilizes the pressure of the pipeline network. It is widely used in gas recovery and supply systems. In the prior art, the pressure fluctuation of the gas cabinet inlet and outlet pipe network is relatively large, generally greater than 3%. In actual production, the gas fluctuation is required to be within ±3%. The existing gas cabinet consists of the side wall of the gas cabinet, the bottom plate of the gas cabinet and...

AI Technical Summary

Problems solved by technology

The gas inlet and outlet pipes of the gas cabinet are generally arranged on the side wall of the cabinet, and the gas is introduced into the gas cabinet by a pipe with a certain cross-section. As the gas flow flows into the closed space in the cabinet, as the gas volume increases, the piston on the top of the cabinet rises, and at the same time, the gas flow A cyclone is formed in the gas cabinet, resulting in uneven pressure distribution of the piston on the top of the cabinet, prone to eccentricity and drift, resulting in poor lifting of the piston on the top of the cabinet, and even excessive resistance and stagnation, resulting in sudden rise or fall of the piston on the top of the cabinet , causing large pressure fluctuations in the gas tank and affecting production

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