Rubber ring blind plugging device

Abstract

The invention belongs to the field of chemical equipment, and particularly relates to a rubber ring blind plugging device. The rubber ring blind plugging device comprises a rubber ring, a rubber sheet and a ventilation hole, wherein the rubber ring is annular, the rubber sheet is fixed to the middle of the rubber ring in a matched mode, the rubber sheet is circular, and the ventilation hole is formed in the rubber sheet and penetrates through the rubber sheet. The rubber ring comprises an outer ring, an inflation cavity and an inflation hole, wherein the outer ring is made of an elastic rubber material, the inflation cavity is formed in the outer ring, the inflation hole is formed in the side wall of the outer ring, and the inflation hole is communicated with the inflation cavity. The rubber sheet is of a sheet-shaped structure made of a rubber material, so that the edge of the folded rubber sheet is conveniently adhered and fixedly connected with the middle of the inner wall of the outer ring. The ventilation hole is formed in one side of the upper portion of the rubber sheet and is in a round hole shape, and a replacement air pipe is arranged in the ventilation hole and penetrates through the two sides of the ventilation hole. The problem that an outlet valve is difficult to open after a heat exchanger is cleaned every time is solved, the situation that two to three blind plates are clamped at an inlet and an outlet of the heat exchanger for cleaning heat exchange equipment every time in the past is changed, and normal use of the valve is affected due to damage to valve heat tracing heat preservation and a gasket caused by flange dismounting in the heat exchange equipment cleaning process is avoided.

Description

technical field [0001] The invention belongs to the field of chemical equipment, and in particular relates to a rubber ring blind blocking device. Background technique [0002] The existing valves at the front and rear of the heat exchanger are disassembled and the flanges are clamped into the blind plates. The number of blind plates is two to three, all of which are large flanges. cost saving [0003] The existing method requires 4 to 5 people to complete the work of at least one day when disassembling and assembling the blind plate, and the workload and intensity are very large. The gasket is easily damaged during the disassembly process, and each gasket costs more than 1,000 yuan. After the heat exchanger is cleaned, the valve plate is crystallized at the low-temperature seal for a long time, making it difficult to open the valve in the later stage, and even damage the valve structure, which affects the production of the device. Contents of the invention [0004] In o...

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Problems solved by technology

[0003] The existing method requires 4 to 5 people to complete the work of at least one day when disassembling and assembling the blind plate, and the workload and intensity are very large. The gasket is easily damaged during the disassembly process, and each gasket costs more than 1,000 yuan. After the heat exchanger is cleaned, the valve plate is crystallized at the low-temperature seal for a long time, making it difficult to open the valve in the later stage, and even damage the valve structure, which affects the production of the device

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