Transformation method of two-section rubber diaphragm sealed gas cabinet

Abstract

The invention discloses a transformation method of a two-section rubber diaphragm sealed gas cabinet. The transformation method comprises the following steps that a rubber diaphragm and a T baffle plate guide wheel between a cabinet body and a T baffle plate are dismounted; a rubber diaphragm and a piston guide wheel between the T baffle plate and a piston fence are dismounted; a corrugated plate on the piston fence is dismounted; the T baffle plate is lifted; a T baffle plate frame table is dismounted; cabinet body sealing profile steel on a side plate of the cabinet body is dismounted; a piston outer ring plate is machined and mounted, and is connected outside a piston baseplate; the T baffle plate is arranged on the piston outer ring plate, and is connected with the piston fence to form a piston of a one-section rubber diaphragm sealed gas cabinet; baffle plate sealing profile steel is arranged at the lower end of the T baffle plate in the peripheral direction; the cabinet body sealing profile steel is arranged on the side plate of the cabinet body; and two ends of the rubber diaphragm are respectively in sealing connection with the cabinet body sealing profile steel and the baffle plate sealing profile steel. The transformation method fully uses the cabinet body of the two-section rubber diaphragm sealed gas cabinet and accessory equipment, and is low in construction investment, short in construction time and high in economic benefit.

Description

technical field [0001] The invention relates to a transformation method of a two-stage rubber membrane sealed gas cabinet. Background technique [0002] It has been more than 30 years since Shanghai Baosteel introduced the first 80,000 m3 gas tank with two-stage rubber membrane seal in the 1980s. Because of its advantages of simple operation and low maintenance cost, with the development of iron and steel and petrochemical industries Rapid development and rapid promotion, there are hundreds of two-stage (or multi-stage) rubber membrane sealed gas cabinets in China at present. [0003] From the analysis of service life and operating conditions, some of the early gas cabinets are basically close to being scrapped or "operating with diseases", and a large number of gas cabinets are facing renovation due to poor use. From the current two-stage (or multi-stage) ) to analyze the use of rubber membrane sealed gas holders, the main problems are as follows: 1) The anti-corrosion per...

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Problems solved by technology

[0003] From the analysis of service life and operating conditions, some of the early gas cabinets are basically close to being scrapped or "operating with diseases", and a large number of gas cabinets are facing renovation due to poor use. From the current two-stage (or multi-stage) ) to analyze the use of rubber membrane sealed gas holders, the main problems are as follows: 1) The anti-corrosion performance is poor, especially at the connection between the side plate and the T baffle stand, because there are a large number of welds in the gas contact area, and the converter The composition of the gas is relatively complex, and the anti-corrosion of the welds is difficult to deal with, so almost most of the gas tanks have gas leakage after long-term use; 2) The pressure is unstable during operation; 3) The piston and the T fence are not concentric, and the piston exists Drift; 4) There are many structural components, the construction process organization is complicated, and the construction accuracy is high; 5) The two-stage rubber membrane sealed gas cabinet is more sensitive to the uneven settlement of the foundation, because the T baffle frame is directly welded to the side wall of the gas cabinet Yes, when the air mechanism requires the T baffle to fall repeatedly, the foundation at the T baffle stand will experience a large settlement, and repeated fatigue stress will easily cause the side plate of the gas cabinet to crack, resulting in a large area of ​​air leakage , affecting safety

[0006] However, if the two-stage rubber membrane airtight gas holders that have been scrapped or are about to be scrapped are dismantled, and then a new one-stage rubber membrane airtight gas holder is rebuilt, a huge construction fund needs to be invested. long construction period

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