Degreased oil recovery device and control method

Abstract

The invention provides a degreased oil recovery device and a control method. The degreased oil recovery device comprises degreasing equipment (1) for degreasing a heat exchanger, a primary precoolingdevice (2), and a gas extraction system (3), wherein the primary precooling device (2) is communicated with the degreasing equipment (1), can import oil gas into the primary precooling device (2) fromthe degreasing equipment (1), and is provided with an enclosed first internal cavity; a temperature in the first internal cavity can be reduced for oil gas separation; and the gas extraction system (3) can be communicated with the primary precooling device (2) to exert a gas extraction effect on the primary precooling device (2) to reduce pressure in the first internal cavity of the primary precooling device (2). According to the device, the oil gas can be cooled, so that the low boiling point gas is effectively separated; oil separation and recovery effects of the oil gas generated in the degreasing equipment are achieved; the waste of lubricating oil due to direct discharge of the oil is avoided; environmental pollution is reduced; and physical health of staff is ensured.

Description

technical field [0001] The invention belongs to the technical field of air conditioning, and in particular relates to a degreasing oil recovery device and a control method. Background technique [0002] The heat exchanger is the key core heat exchange component of the air conditioner. The degreasing process of the heat exchanger is to remove the lubricating and cooling grease required for the previous processing. It is an important process that affects the quality of the air conditioner. The heat exchanger contains a large amount of copper tube oil and fin oil. During the degreasing process of the heat exchanger, a large amount of oil mist and exhaust gas (mainly containing triphenyl, styrene, total VOCs, non-methane total hydrocarbons, Nitrogen dioxide, nitrogen oxides, carbon monoxide, smoke blackness, particulate matter, etc.). At present, it is mainly necessary to equip another set of environmental protection equipment for waste gas treatment, which is used to treat the...

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Problems solved by technology

[0004] Therefore, the technical problem to be solved by the present invention is to overcome the defect that the degreasing tank of the air-conditioning heat exchanger in the prior art will generate a large amount of oil mist when degreasing, and the oil mist is not recycled and discharged directly, resulting in the waste of lubricating oil , so as to provide a degreasing oil recovery device and control method

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