Refrigeration assisted adsorption type VOCs (volatile organic compounds) recovery device and recovery method

A recovery device and adsorption device technology, which is applied in the field of refrigeration-assisted adsorption VOCs recovery devices, can solve the problems of short service life of adsorption materials, low refrigeration performance coefficient, poor desorption effect, etc., and achieve accelerated desorption speed, low cost, The effect of long service life

Active Publication Date: 2015-12-09
BEIJING UNIV OF TECH +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Its purpose is to solve the defects of poor adsorption effect, short service life of adsorption materials, poor desorption effect and large power consumption in the adsorption device.
Another object of the present invention is to provide a recovery device corresponding to the method, which also solves the problems of low refrigeration performance coefficient and large energy consumption of the common refrigeration system.

Method used

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  • Refrigeration assisted adsorption type VOCs (volatile organic compounds) recovery device and recovery method
  • Refrigeration assisted adsorption type VOCs (volatile organic compounds) recovery device and recovery method
  • Refrigeration assisted adsorption type VOCs (volatile organic compounds) recovery device and recovery method

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Experimental program
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Effect test

Embodiment 1

[0034] refer to figure 1 , Refrigeration-assisted adsorption VOCs recovery device, including sequentially connected exhaust inlet 1, coarse filter 2, cooling unit, adsorption device, fan 7, branch diversion channel 10, vacuum pump 9 for desorption process, and related pipeline stop valves, etc. , characterized in that: the cooling unit includes a condenser 4, a compressor 5, an air-cooled condenser 13, a liquid storage tank 14, a throttle valve 15, and the like. The adsorption device includes two adsorption beds connected in parallel, a first adsorption bed 6 and a second adsorption bed 11, and a heating plate 12 is provided on the adsorption bed. The outlet of the condenser 4 is connected to the inlet of the compressor 5, and the outlet of the compressor 5 is connected to the inlet of the heating coil 12 and the inlet of the air-cooled condenser 13 respectively through stop valves e, f, g, h, and the outlet of the heating coil 12 is passed through The stop valves m and n are...

Embodiment 2

[0045] A refrigeration-assisted condensing VOCs recovery device, see image 3 , comprising a coarse-effect filter unit 2, a first condenser 4, a first adsorption bed 6, a second condenser 4', a second adsorption bed 11, and a fan 7 connected in sequence, and the fan 7 is respectively connected to the branch diversion channel through a shut-off valve 10 is connected to the exhaust port 8, the outlet of the branch diversion channel 10 directly leads to the air-cooled condenser 13, the refrigerant outlets of the first condenser 4 and the second condenser 4' are respectively connected with the inlet of the compressor 5, and the outlets of the compressor 5 The outlet is connected to the air-cooled condenser 13 and the inlet of the liquid storage tank 14 in turn, and the outlet of the liquid storage tank 14 is respectively connected to the refrigerant inlets of the first condenser 4 and the second condenser 4' through a stop valve.

[0046] Using the refrigeration-assisted adsorptio...

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Abstract

A refrigeration assisted adsorption type VOCs (volatile organic compounds) recovery device and recovery method belongs to the fields of energy utilization, resource recovery, environmental protection and the like. The device comprises a coarse filtration unit, a cooling unit, an absorption device, a fan, a vacuum pump and a branch diversion channel which are sequentially connected. The method comprises steps of coarse filtration, cooling for vapour removal and gas mixture cooling, adsorption, heating assisted vacuum desorption, cooling capacity recovery, exhausting and the like sequentially. The cooling unit comprises an evaporator, a compressor, a forced air cooling condenser, a liquid storage tank, a throttle valve and the like. The cooling unit is used for removing vapour in a gas mixture, and reducing the temperature of the gas mixture, so as to remarkably improve the subsequent absorption effect and prolong the service cycle of the absorption device. The recovery device is high in recovery efficiency, relatively low in cost, simple in structure, long in service life, and easy to control and operate, and is particularly suitable for recovery processing of low concentration VOCs, which are not suitable for condensation methods, in chemical engineering, automobile industry and other fields.

Description

technical field [0001] The invention discloses a refrigeration-assisted adsorption type VOCs recovery device and a recovery method. It belongs to the fields of energy utilization, resource recovery, environmental protection, etc., and is specifically used in the recovery and treatment of low-concentration VOCs that are not suitable for condensation methods in petrochemical, automotive, painting, leather, and other fields. Background technique [0002] Volatile Organic Compounds (Volatile Organic Compounds) is a general term for a class of organic compounds, hereinafter referred to as VOCs. [0003] VOCs have great potential harm to the environment and human body. Some highly active VOCs are the precursors of PM2.5, and some can also form photochemical smog pollution under certain conditions; some VOCs will cause ozone depletion under the action of ultraviolet rays from the sun; in addition, the special odor of VOCs has a strong Stimulant, can cause various discomforts to t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D46/00B01D5/00B01D53/04B01D53/44B01D53/72
CPCY02A50/20Y02P70/10
Inventor 李红旗郑新李俊明张伟
Owner BEIJING UNIV OF TECH
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