System and method for efficiently purifying volatile organic compounds (VOCs) generated in roast duck making process

A production process and roast duck technology, applied in chemical instruments and methods, separation methods, combustion methods, etc., can solve the problems of large gas volume and high energy consumption

Pending Publication Date: 2020-09-29
BEIJING MUNICIPAL RES INST OF ENVIRONMENT PROTECTION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In the above treatment methods, the amount of gas processed in the collection and purification process is large, and the energy consumption is high

Method used

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  • System and method for efficiently purifying volatile organic compounds (VOCs) generated in roast duck making process
  • System and method for efficiently purifying volatile organic compounds (VOCs) generated in roast duck making process
  • System and method for efficiently purifying volatile organic compounds (VOCs) generated in roast duck making process

Examples

Experimental program
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Effect test

Embodiment 1

[0031] Such as figure 1 As shown, the embodiment of the present invention provides a system for efficiently purifying VOCs produced in the roast duck production process, including: a negative pressure gas storage device 1 and a VOCs thermal combustion device 2, and the air inlet of the negative pressure gas storage device 1 The first pipeline 3 is connected to the furnace cavity of the airtight roast duck oven 4, and the first valve 5 is arranged on the first pipeline 3; The combustion-supporting gas inlet of the combustion device 2 is connected, and the second pipe 6 is provided with a flue gas conveying device 7 and a second valve 8 .

[0032] In the above system, the negative pressure gas storage device can be a vacuum tank, the flue gas delivery device can be a vacuum pump, and the VOCs thermal combustion device refers to a device that uses a thermal combustion method to process VOCs. The thermal combustion method is generally used to deal with the low concentration of VO...

Embodiment 2

[0058] Such as image 3 As shown, the embodiment of the present invention provides a method for efficiently purifying VOCs produced in the roast duck production process using the system as described in Embodiment 1, including:

[0059] S1, open the first valve, so that the VOCs accumulated in the airtight roast duck oven quickly enter the negative pressure gas storage device under the action of negative pressure;

[0060] S2, closing the first valve, opening the second valve, starting the flue gas delivery device to deliver the gas in the negative pressure gas storage device to the combustion-supporting gas inlet of the VOCs thermal combustion device;

[0061] S3, start the VOCs thermal combustion device to burn and purify the VOCs.

[0062] Further, the opening of the first valve includes:

[0063] The main controller detects whether the timing of the timer is over, and if so, generates a first control command and sends it to the first valve, and the first control command i...

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Abstract

The invention discloses a system and method for efficiently purifying volatile organic compounds (VOCs) generated in the roast duck making process. The system comprises a negative-pressure gas storagedevice and a VOC thermal combustion device; a gas inlet of the negative-pressure gas storage device is connected with a roaster cavity of a closed duck roaster through a first pipeline, and a first valve is arranged on the first pipeline; and a gas outlet of the negative-pressure gas storage device is connected with a combustion-supporting gas inlet of the VOC thermal combustion device through asecond pipeline, and a smoke conveying device and a second valve are arranged on the second pipeline. Through the smoke conveying device, smoke entering the negative-pressure gas storage device from the duck roaster is conveyed into the combustion-supporting gas inlet of the combustion device and is evenly mixed with combustion-supporting gas, and then the VOCs are removed through a combustion method; the amount of the gas needing to be treated is small, and energy consumption is low; equipment is low in cost and small in floor area; and specialized treatment is conducted, and thus the purifying efficiency of the VOCs is high.

Description

technical field [0001] The invention relates to the technical field of catering and environmental protection, in particular to a system and method for efficiently purifying VOCs produced in the roast duck production process. Background technique [0002] Cooking fume produced by the catering industry refers to the mixture of volatilized oil, organic matter, and thermal oxidation and pyrolysis during food cooking and food production and processing. It is mainly composed of particulate matter and gaseous pollutants. Among them, gaseous pollutants are mainly some volatile Organic compounds (Volatile Organic Compounds, VOCs), its composition is very complex. Emission into the atmosphere can cause photochemical smog pollution, and can also generate secondary aerosols, accelerate the formation of fine particles, bring high local air pollution, and affect the atmospheric environment of surrounding residents. [0003] Roast duck will produce a lot of VOCs during the roasting proces...

Claims

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Application Information

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IPC IPC(8): F23G7/06B01D46/10
CPCF23G7/06B01D46/10
Inventor 李国傲孙成一王首陈雪
Owner BEIJING MUNICIPAL RES INST OF ENVIRONMENT PROTECTION
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