Vehicle-mounted mobile volatile organic compound waste gas treatment device, system and method

Abstract

The invention relates to a vehicle-mounted mobile volatile organic compound waste gas treatment device, system and method. Residual volatile organic compound waste gas in a container is introduced into a membrane separation component to carry out enrichment concentration treatment; volatile organic compound waste gas at an enrichment side of the membrane separation component is introduced into a heat exchange component by a vacuum pump to carry out primary heat exchange with circulating water by a first heat exchanger, and after primary heat exchange, enters a second heat exchanger to carry out secondary heat exchange with compressed air at a cold end outlet of a vortex tube of a vortex component; after heat exchange, condensate enters a condensate recovery tank of a condensate recovery component to be recovered, and noncondensable gas is returned to the membrane separation component by a first fan; low-concentration volatile organic compound gas at a raffinate side of the membrane separation component is introduced into an adsorption component to be adsorbed by an adsorption tank, and after adsorption, purified gas is discharged into the atmosphere via a second fan at an outlet ofthe adsorption tank. According to the vehicle-mounted mobile volatile organic compound waste gas treatment device, system and method, treatment on the residual volatile organic compound waste gas inopen container equipment can be completed, product waste and atmosphere pollution are reduced, and flexibility is high.

Description

technical field [0001] The invention relates to the technical field of waste gas treatment, in particular to a vehicle-mounted mobile volatile organic waste gas treatment device, system and method. Background technique [0002] Volatile organic compounds (VOCs, full name Volatile Organic Compounds), total volatile organic compounds are sometimes expressed by TVOC. According to the definition of the World Health Organization, a compound with a boiling point between 50°C and 250°C has a saturated vapor pressure of more than 133.32Pa at room temperature, and is a type of organic compound that exists in the air in the form of vapor at room temperature. The U.S. Environmental Protection Agency defines it as the removal of CO, CO 2 、H 2 CO 3 , metal carbide, metal carbonate and ammonium carbonate, any carbon-containing compound that participates in atmospheric photochemical reactions. When the concentration of VOCs in the room exceeds a certain level, people will feel headache...

AI Technical Summary

Problems solved by technology

[0003] At present, in the petrochemical, pharmaceutical and other organic chemical fields, when inspecting and maintaining volatile organic compound container equipment, there is currently no treatment method for the residual volatile organic compound (VOCs) waste gas in the container after the container equipment is opened, resulting in a large amount of volatile organic compound waste gas Directly discharged into the atmosphere or directly discharged into the atmosphere with purge gas such as nitrogen, thereby causing environmental pollution and harm to the human body

In the traditional technical scheme, the fixed volatile organic waste gas treatment technology adopts the condensation and adsorption process. The refrigeration (refrigerant) part must use mechanical refrigeration or liquid nitrogen refrigeration to realize the condensation of gaseous organic substances. Mechanical refrigeration equipment will introduce new Organic pollution sources, complex refrigeration unit equipment, complex and cumbersome maintenance

Fixed volatile organic waste gas treatment technology can only be used for specific equipment, and cannot treat residual volatile organic compound waste gas for different customers or different equipment of the same customer

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