Welding gas energy-saving comprehensive control system

Abstract

The invention discloses a welding gas energy-saving comprehensive control system. The welding gas energy-saving comprehensive control system comprises a gas supply station, a gas distribution cabinet,a front-end main control unit, a middle-section constant-pressure control unit, a tail-end intelligent gas control instrument unit and a welding device, wherein the gas supply station is used for providing a gas source for the welding device; the gas distribution cabinet is used for mixing the welding seam shielding gas in proportion according to actual needs; the front-end main control unit is used for managing gas supply on-off of a pipeline and performing automatic regulation and management according to feedback data; the middle-section constant-pressure control unit is used for automatically adjusting and managing according to state parameters of the gas so as to ensure the stable gas pressure output ; the tail-end intelligent gas control instrument unit is used for automatically matching reasonable gas flow according to the requirements of the welding device; and the welding device is in pipeline connection with the tail-end intelligent gas control instrument unit. According to the welding gas energy-saving comprehensive control system, by means of the three-in-one integrated intelligent comprehensive control system, the pipeline gas supply on-off of a user can be effectivelymanaged, automatic regulation and management can be carried out according to the feedback data, stable gas pressure output is guaranteed, and efficient energy conservation is effectively achieved.

Description

technical field [0001] The invention relates to the technical field of metal welding, in particular to an energy-saving comprehensive control system for welding gas. Background technique [0002] In the metal welding industry, the use of welding seam shielding gas (argon, carbon dioxide or a mixture of the two) is currently used in some large-scale factories to use tank-type centralized gas storage, gas supply through pipelines, and decompression meters ( or flowmeter) to control the amount of gas used, under this premise, the following problems will arise: [0003] (1) The gas supply system lacks effective management, and the gas is directly used to protect the weld without effectively changing from a liquid state to a suitable gas state, resulting in a lot of waste; [0004] (2) The pipeline layout is simple and unscientific, resulting in a large transient pressure drop, a vicious cycle, and intermittent "snatching gas" resulting in insufficient gas consumption at multipl...

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Problems solved by technology

[0003] (1) The gas supply system lacks effective management, and the gas is directly used to protect the weld without effectively changing from a liquid state to a suitable gas state, resulting in a lot of waste;

[0004] (2) The pipeline layout is simple and unscientific, resulting in a large transient pressure drop, a vicious cycle, and intermittent "snatching gas" resulting in insufficient gas consumption at multiple stations. The operator can only adjust according to the maximum flow rate to meet its production, resulting in a lot of big waste;

[0005] (3) It is impossible for the welder to adjust the flow control to achieve gas supply on demand due to factors such as changes in size and current or unstable gas supply, resulting in a waste of part of the gas volume

[0006] At present, in terms of technology in the industry, the front end of the gas supply can only be controlled manually, without effective management, and the pipeline transportation process cannot be controlled. During the welding process, the flow rate can only be continuously increased to make up for the "insufficient gas supply". There are only some controllers with simple functions that are only aimed at controlling the gas flow at the end. There is no research and effective control on the essential properties of the welding gas (argon, carbon dioxide, or a mixture of the two, etc.), and it cannot prompt the leak detection of the overall pipeline. High-precision intelligent adjustment, the error is huge, can not achieve constant voltage and current stability and can not guarantee the welding quality, resulting in low saving efficiency and poor effect

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