Multifunction multi-airbag leakage-free gas recycling closed tank car cover plate device

Abstract

The invention relates to a multifunction multi-airbag leakage-free gas recycling closed tank car cover plate device, which is characterized in that: a cover plate 1 is of a circular flat plate, a circular flat ring-shaped cover plate airbag sealing ring (34) is adhered onto the lower surface of the circular flat plate, an airbag guide fixed bracket (7) is nested inside a conical cover plate airbag sealing ring (134), and the lower end of the airbag fixed bracket (7) is connected with a spring hook (20) of a corrugated pipe (19). A reversed tower-shaped airbag guide fixed bracket (207) is arranged below a circular flat ring-shaped flexible sealing ring cover plate, and the interlayer between the airbag guide fixed bracket (7) and the reversed tower-shaped airbag fixed bracket (207) is provided with airbag sealing rings (80) and (120). An airbag ring charging-discharging pipe (10), an airbag charging-discharging tee manual valve (8) and an airbag charging control valve (9) are arranged inside the airbag sealing ring (80). The airbag charging-discharging pipe extends out of the cover plate (1) through an airbag charging-discharging pipe hole (42). The device has simple structure, adopts multiple airbags to seal, is safe and reliable to use, and has high recycling efficiency. The device is free from leakage and pollution, conforms to the national environmental protection and safety requirement and conforms to the intrinsic explosion-proof requirement under the sealing, and loading arms which are used under different work conditions can be matched and can conform to the diameter and the height of the entrance hole of the tank car. The recycling rate of the gas is improved.

Description

technical field [0001] The present invention relates to a kind of airtight cover plate device for recovering various oil gas poisonous and harmful gases produced during the loading and unloading of mobile storage tanks and fixed storage tanks, and more specifically relates to an oil refinery, chemical plant, various oil depot trestles, A multi-functional multi-airbag non-leakage gas recovery closed tank car cover device for the closed recovery of various oil and gas poisonous and harmful gases generated during the loading and unloading of railway tank cars, automobile tank cars and other mobile storage tanks and tank farms. Background technique [0002] At present, in my country, when loading and unloading light oil products, chemical raw material railway tank cars, automobile tank cars and storage tanks, a large number of toxic and harmful gases are produced. Great environmental pollution, greenhouse effect, etc. Especially chemical raw materials are more polluting. When th...

AI Technical Summary

Problems solved by technology

Thoroughly solve the problem of light pollution caused by gas diffusion during loading and unloading, and the problem of inhaling air during loading and unloading, solve the problem of polluted environment, poor recovery effect and bring unsafe hidden dangers in storage and transportation, so as to achieve the purpose of energy saving and emission reduction , providing a multi-functional multi-air bag non-leakage gas recovery airtight tank car cover device

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