Condensed explosion-proof oil gas reclaiming device

Abstract

The invention discloses a condensed explosion-proof oil gas reclaiming device, which comprises an oil gas heat exchange separator, a first condensation evaporator, a second condensation evaporator and three-stage refrigerating parts, wherein the cold energy of the first-stage refrigerating part is divided into two paths, one path of cold energy enters the first condensation evaporator, and the other path of cold energy enters the oil gas heat exchange separator; the cold energy of the second-stage refrigerating part is divided into two paths, one path of cold energy enters the second condensation evaporator, and the other path of cold energy enters the oil gas heat exchange separator; and the cold energy of the third-stage refrigerating part directly enters the oil gas heat exchange separator. The condensed explosion-proof oil gas reclaiming device reclaims oil gas by adopting a pure condensation method, and the oil gas after condensation and liquefaction directly becomes gasoline for recycle; meanwhile, fractional condensation is performed at a higher evaporation temperature by adopting compressor double-parallel cascade refrigeration technology, and the preceding stage refrigerating part provides a heat displacement low-temperature environment for the refrigeration and oil gas cooling fractional condensation of the post stage, so the energy efficiency ratio can be improved; and the device has the advantages of energy conservation, environmental protection, low cost and convenient operation and maintenance.

Description

technical field [0001] The invention relates to an oil gas recovery device, in particular to a condensing type explosion-proof oil gas recovery device which is energy-saving, environmentally friendly, low in cost, high in reliability and convenient in operation and maintenance. Background technique [0002] At present, with the rapid growth of motor vehicle ownership in large and medium-sized cities in my country, the consumption of gasoline is also increasing rapidly. Gasoline is highly volatile, and it is inevitable to volatilize a large amount of oil and gas during loading, unloading, storage and use, and the accompanying problem of oil and gas pollution is becoming more and more serious. According to statistics, billions of tons of oil and gas are discharged into the atmosphere every year, sometimes causing photochemical pollution. [0003] Most of the existing oil and gas recovery technologies recover gasoline through absorption or osmosis, which requires secondary sep...

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Problems solved by technology

[0003] Most of the existing oil and gas recovery technologies recover gasoline through absorption or osmosis, which requires secondary separation and treatment. The recovered gasoline cannot be directly obtained, and it is accompanied by the emission of benzene series, polluting the environment

The existing oil and gas recovery device has complex structure, cumbersome operation, high cost, and low oil and gas recovery rate

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