Control method for relay network connection of two gas chambers

Abstract

Provided is a control method for relay network connection of two gas chambers. The two gas chambers are connected to the same gas pipe network and jointly play gas peak removal, valley filling and pressure stabilization effects, and meanwhile the gas recovery problem during in-turn overhauling of the gas chambers is solved. The control method specifically comprises the following steps of 1 comparing inlet gas pressures of the two gas chambers and defining the near-end chamber and the far-end chamber according to the pressures, 2 comparing resistance values of inlet and outlet pipe networks of the two gas chambers and regarding the larger resistance value as pipe network resistance DeltaP, and 3 setting the pressures of pistons and T-shaped baffles of the two gas chambers according to the principles of the gas inlet chamber and the gas outlet chamber. The relay network connection operation of the two gas chambers is achieved by reasonably setting the pressures of the pistons and T-shaped baffles of the two gas chambers, the problem that the gas chambers are successively established and connected to the network is solved, and the gas buffering and pressure stabilization demands are met. In addition, optional switching between a double-chamber relay operation mode and a single-chamber operation mode can be further performed, and the problem that gas cannot be recovered during gas chamber overhauling is effectively solved.

Description

technical field [0001] The invention relates to the field of steel plant gas cabinet pipe network systems, in particular to a control method for two gas cabinets connected to the grid through relay. Background technique [0002] In recent years, the construction of domestic and foreign steel mills is moving towards a larger scale, and many new gas tanks are bound to be built, but they are often divided into several phases of construction and commissioning due to various reasons. In the conventional design, usually a gas cabinet corresponds to the corresponding converter gas recovery system, and the gas cabinets are independent of each other. Once a problem occurs in the gas cabinet and needs to be repaired, a large amount of converter gas will be released, resulting in huge economic waste and adverse environmental impact. . [0003] Especially with the increasing age of gas cabinets, the pressure of gas cabinet maintenance is increasing. How to smoothly connect new gas cabi...

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a control method for the grid-connected operation of two gas cabinets in relay for the above-mentioned deficiencies existing in the grid-connected existing gas cabinets. This method can solve the problem that gas cannot be recovered during gas cabinet maintenance, At the same time, it has the advantages of simple and reliable control process, less manual operation factors, and smart gas relay into the cabinet.

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