Variable-volume gas storage system

Abstract

The invention discloses a variable-volume gas storage system. The variable-volume gas storage system comprises regulating valves V1 and V2 mounted at an inlet of an A, B system storage tank, and stopvalves V3, V4 and V5 mounted at an inlet of an A, B, C system storage tank. The variable-volume gas storage system has the following advantages: 1) when the pressure of a pipe network system is gradually reduced from high to low, the supply is lower than the demand; and A, B system storage tank inlet regulating valves V1 and V2 are gradually closed when the pressure of the pipe network system reaches 1.5MPa, and a backup system is started for gas supply; and 2) when the pressure of the pipe network system is gradually increased from low to high, the pressure of 1.5MPa is increased to 3.0MPa, and the supply is higher than the demand; in the pressure increasing process, when the internal pressure of a C system storage tank reaches 1.8MPa, the backup system is stopped, and a B system storagetank inlet regulating valve V2 is gradually increased; when the internal pressure of a B system storage tank reaches 1.8MPa, an A system storage tank inlet regulating valve V1 is gradually increased;and when the internal pressure of an A system storage tank reaches 1.8MPa, the V1 and the V2 are totally opened, and the pressure reduction is controlled according to the step 1.

Description

technical field [0001] The invention relates to a variable volume gas storage system. Background technique [0002] All kinds of gas storage tanks (tanks) are widely used in the chemical industry and metal smelting enterprises. The function of the gas storage system is to "make up for the shortage with abundance". The storage tank system is used for storage and preparation. At this time, the storage tank system can be regarded as a user; when the consumption is greater than the supply, the gas in the storage tank is spit out to supply the user at the peak of gas usage, and the storage tank system can be regarded as a gas production unit at this time; It is the existence of the storage tank system in the gas supply pipeline network that balances the contradiction between the periodicity of user consumption and the continuity of supply equipment production, so as to ensure the stability, economy and continuity of regulated gas production and supply. Since the steel gas storag...

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Problems solved by technology

[0004] The purpose of the present invention is to provide a variable volume gas storage system, which can use the volume of the adjustable storage tank to adjust the gas pressure of the gas peak and trough, and solve the problem of large fluctuations in the system gas pressure caused by the fixed storage volume in the gas storage system question

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