Multi-differential-pressure type multiple high-pressure gas cylinder safety protection device

Abstract

The invention discloses a multi-differential-pressure type multiple high-pressure gas cylinder safety protection device. A mechanical shell, a solenoid valve shell and a multi-differential-pressure type structural shell are welded together. The mechanical shell is connected with a high-pressure gas cylinder. A solenoid valve element in the solenoid valve shell is of a wedge-shaped multi-level sealing structure. The multi-differential-pressure type structural shell is of a multi-differential-pressure type structure. According to the multi-differential-pressure type multiple high-pressure gas cylinder safety protection device, electronic control mechanical set is conducted through a solenoid valve and the multiple levels of sealing structures; mechanical set is conducted on the basis of thedifferential pressure principle of a front working cavity and a rear working cavity of a mechanical valve body, dual set protection is achieved, the structure is more stable, safe and reliable; an electromechanical dual protection structure formed by the multi-differential-pressure type structure and the solenoid valve is adopted, autonomous set of a mechanical structure and electronic control setof the solenoid valve are protected; the pressure value of gas in a gas channel is guaranteed to be a stable value; and motion of the mechanical structure is guaranteed.

Description

technical field [0001] The invention relates to the field of safety protection of high-pressure gas cylinders, in particular to a multi-pressure difference type multiple high-pressure gas cylinder safety protection device. Background technique [0002] In the process of high-pressure filling oil and gas transportation and storage, high-pressure gas cylinders are the primary checkpoint to control the leakage of gas in the cylinders. During the long-term transportation and use of high-pressure gas cylinders, various factors such as chemical corrosion in the bottle, crack leakage downstream of the bottle mouth, and interference and damage to the bottle body by a third party directly cause oil and gas leakage safety problems in high-pressure gas cylinders. [0003] When the current high-pressure gas cylinders are transported and used, the conventional safety protection measures are mostly adopting various safety devices such as daily replacement safety protection devices, electr...

AI Technical Summary

Problems solved by technology

The mechanical safety protection device uses an independent mechanical structure to control the on-off of the gas circuit at the downstream port, which effectively solves the problem of leakage of high-pressure gas cylinders. However, there are unsafe factors such as failure of the sealing ring and lax setting, and the safety of the protection device is insufficient.

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