Piston bracket retractable single-section rubber membrane sealed dry gas holder

Abstract

The invention relates to a single-section rubber membrane sealing dry-type coal gas cabinet with a telescopic piston bracket. The single-section rubber membrane sealing dry-type coal gas cabinet comprises a cabinet body, a piston, a piston bracket for driving the piston to move up and down, and a piston plate fixed to the bottom of the piston, wherein the piston bracket can stretch out and draw back within certain range; when the piston bracket ascends to the topmost end of the stroke, the piston bracket is drawn back to be shortest; and when the piston bracket descends to the bottommost end of the stroke, the piston bracket stretches out to be longest. The coal gas cabinet is small in invalid volume, is small in height, wastes less space and requires fewer consumable items.

Description

technical field [0001] The invention belongs to the field of gas cabinets, and in particular relates to a single-stage rubber membrane-sealed dry gas cabinet with a retractable piston bracket. Background technique [0002] Compared with the double-stage rubber-membrane-sealed dry-type gas cabinet, the single-stage rubber-membrane-sealed dry-type gas cabinet has a similar structure. The internal structure of the section cabinet is more complex. In addition to the piston, there are T baffles and T baffle brackets. Through the sequential lifting of the piston and T baffles, the gas in and out is realized. The single-stage rubber membrane seals the dry gas cabinet. The piston of the double-stage rubber membrane-sealed dry-type gas holder is driven by the piston bracket to move up and down, and the bottom of the piston is fixed with a piston plate. The existing single-stage rubber-membrane-sealed dry-type gas holder has the advantages of a wide range of storable media, stable st...

AI Technical Summary

Problems solved by technology

[0003] The height of the gas holder is determined by the height of the piston bracket in addition to its design capacity. The height of the piston bracket of the existing single-stage rubber film sealed dry gas cabinet is fixed, so when the piston bracket rises to the stroke At the top of the gas tank, there will be an invalid volume on it. The larger the invalid volume, the more wasted space, the higher the gas cabinet, and the more consumables needed; if the height of the piston bracket is reduced, although the invalid volume can be reduced, Reduce the height of the gas cabinet and reduce consumables, but when the piston support is lowered to the bottom end of the stroke, because the piston support is too short, the remaining gas in the rubber film will form a large gap between the top of the piston support and the sealing angle of the side plate. The airbag not only affects the rising of the piston, but also may be scratched by the piston bracket during the rising process of the piston, causing the rubber film to fail. Therefore, when the piston is at the bottom of the stroke, the piston bracket must have a certain height to prevent the formation of the airbag.

[0004] To sum up, since the height of the piston bracket of the existing single-stage rubber membrane sealed dry gas holder is fixed and must have a certain height, the invalid volume is large, the height is high, the waste of space is large, and the required consumables many

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