Automobile top locking type oil vapor recovery sealing device

Abstract

A truck top locking type oil-gas recovery and sealing device comprises a vertical pipe and a sealing cover matched with a top tank opening of an oil tank truck. A vertical pipe passing hole is formed right in the middle of the sealing cover, a gas-liquid phase cylinder body is arranged above the sealing cover, and the lower edge of the gas-liquid phase cylinder body is connected with the upper surface of the sealing cover. A gas phase pipe is arranged on the side wall of the gas-liquid phase cylinder body, and a vertical pipe lifting air cylinder is arranged in the gas-liquid phase cylinder body. A cover plate cylinder body is arranged below the sealing cover, a rubber gasket is arranged on the sealing cover along the outer wall of the cover plate cylinder body, and the lower portion of the cover plate cylinder body is provided with a bottom buckling and pressing mechanism matched with the inner edge of the tank opening of the oil tank truck. According to the truck top locking type oil-gas recovery and sealing device, the integrated air cylinder is used as driving force to drive a chassis bolt mechanism of the sealing device to ascend, and bolts spread out and clamp the bottom of a manhole cover of the tank opening from the inside of the tank opening to provide stable and reliable pressing force for the rubber gasket on the upper portion of the tank opening. The pressing force is only formed between the sealing device and the tank opening, the adverse factors of oil-gas pressure in the oil tank truck, sinking of the oil tank truck and the like can be overcome, and the truck top locking type oil-gas recovery and sealing device is reliable in sealing, easy to operate and compact in structure.

Description

technical field [0001] The invention relates to a loading and unloading device for volatile oil products or chemical media, in particular to a locking type oil gas recovery sealing device on the top of an automobile. Background technique [0002] For a long time, due to various complicated reasons, a large amount of oil and gas are produced during the loading of oil products, and the closed recovery of oil and gas cannot be realized. This not only causes a waste of resources for the country, but also pollutes the environment, reduces the benefits of enterprises, and damages operations. The health of personnel, as the country pays more attention to environmental protection and energy conservation, many oil product storage and transportation depots and refineries have set up oil and gas recovery systems to recover volatile gases, but the recovery system is connected to the tank car port Airtightness is the key link to improve the oil and gas recovery rate. Since there is no un...

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Problems solved by technology

[0002] For a long time, due to various complicated reasons, a large amount of oil and gas are produced during the loading of oil products, and the closed recovery of oil and gas cannot be realized. This not only causes a waste of resources for the country, but also pollutes the environment, reduces the benefits of enterprises, and damages operations. The health of personnel, as the country pays more attention to environmental protection and energy conservation, many oil product storage and transportation depots and refineries have set up oil and gas recovery systems to recover volatile gases, but the recovery system is connected to the tank car port Airtightness is the key link to improve the oil and gas recovery rate. Since there is no uniform standard for the size of the tank car and the tank mouth, the height of the body, the diameter of the tank mouth, and the height of the tank mouth vary greatly. , so the support rigidity of the crane tube is not enough to provide enough sealing pressure. Currently, the sealing device such as the cone cap or the sealing device that seals the mouth of the tank by its own weight is used. None of these devices can provide stable and reliable pressing force, and the sealing effect cannot fully meet the oil and gas recovery requirements, and the overweight sealing device also increases the labor intensity of the operator

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