CN202778219U - System for treating low-concentration VOCs (Volatile Organic Chemicals) waste gas - Google Patents
System for treating low-concentration VOCs (Volatile Organic Chemicals) waste gas Download PDFInfo
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- CN202778219U CN202778219U CN201220460044.9U CN201220460044U CN202778219U CN 202778219 U CN202778219 U CN 202778219U CN 201220460044 U CN201220460044 U CN 201220460044U CN 202778219 U CN202778219 U CN 202778219U
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Abstract
The utility model provides a system for treating low-concentration VOCs (Volatile Organic Chemicals) waste gas. The system comprises a fan for feeding waste gas, wherein the fan is connected with an adsorption device through a gas guiding pipeline, and a switchable gas evacuation pipe is lead out from the top of the adsorption device; a vacuum pump is connected with the adsorption device and an inlet end of a membrane separator through the switchable gas guiding pipeline; two gas guiding pipelines are lead out from an outlet end of the membrane separator, one gas guiding pipeline is connected to a precooler, and the other gas guiding pipeline is connected to an inlet of the fan; two ends of the condenser are connected with the precooler; and three gas guiding pipelines are lead out from the bottom of the condenser, two gas guiding pipelines are connected with a cold storage type compression refrigeration unit (RFG) to serve as gas inlet/outlet pipes, the other gas guiding pipeline is connected to a collection tank. The system disclosed by the utility model integrates an adsorption technology, a membrane separation technology and a condensation technology, is mainly used for treating the low-concentration VOCs waste gas in occasions such as oil and chemical product truck loading processes, storage tanks and sewage pools, and the treated waste gas can reach the emission standard on effluent gases in China.
Description
Technical field
The utility model relates to technical field of waste gas treatment, particularly a kind of system that administers low concentration VOCs waste gas.
Background technology
The modal first kinds of pollution matter of the industries such as VOC (Volatile Organic Compound is hereinafter to be referred as VOCs) is petrochemical industry, pharmacy, printing, shoemaking, spray paint discharging.Along with the raising of industrial expansion and people's living standard, the discharge capacity of VOCs grows with each passing day, and has the characteristics such as scope is wide, discharge capacity is large.This type organic has toxicity mostly, and can participate in photochemical reaction, forms photochemical fog, is the essential condition that the second particle organic matter forms in the atmosphere, and atmospheric environment and health are produced serious influence.Therefore, the comprehensive regulation research of carrying out VOCs waste gas has become the focus of current international environment, and in China, the VOCs waste gas pollution control and treatment also is confirmed as one of research topic that China give priority to from now on.
Along with the gradually reinforcement of socioeconomic development and environmental consciousness, VOCs comprehensive regulation field progressively is developed to the organic volatile gas that great majority are refined oil and chemical products produce from comparatively single light oil product entrucking production and storage and transport process.The volatility of most of refinery products is much lower than the volatility of light oil product (being mainly: gasoline and benzene etc.), and therefore the discharging gas organic component concentration in pouring process is 1 ~ 2% or lower; Along with the use on a large scale of internal floating roof tank, oil product waste because of Big and Small Breath in storage tank will descend much than arch-roof tank simultaneously.
For adapting to the development trend of the VOCs comprehensive regulation, need to develop the improvement technique that adapts to low concentration VOCs gas characteristic, under the prerequisite of the discharge standard that satisfies increasingly stringent, reduce the operation energy consumption for the treatment of apparatus, improve the reliability of device.
The research and development aspect that the external VOCs of Present Domestic administers new technology has all obtained constantly development, its developing direction one is that various mainstream technologys are improved raising, and being mainly reflected in one is exploitation and the application of new material (sorbing material, catalysis material, filtering material, biological cleaning strains etc.); The 2nd, the research and development of process of optimization and integration technology are reclaimed integrated technology, Adsorption Concentration-absorption integrated technology etc. such as Adsorption Concentration-catalytic combustion integrated technology, Adsorption Concentration-condensation; The 3rd, the Application and Development of new technology is such as biological cleaning technology, plasma for purification technology, photocatalysis technology, membrane separation technique and ionic liquid absorption techniques etc.
Facts have proved, single by a kind of technology to realize VOCs effect of integrated pest management (recovery of total hydrocarbon qualified discharge and organic components) be comparatively the difficulty.Two in the above-mentioned technology or three are made up, optimum with the integrated performance index of realizing package unit, be the development trend of current VOCs process for comprehensively treating.
The utility model content
The purpose of this utility model provides a kind of system that administers low concentration VOCs waste gas, integrate adsorption technology, membrane separation technique and condensation technology, be used for administering the VOCs waste gas that concentration is hanged down occasion such as oil product and chemical products entrucking process, storage tank, cesspool etc., and waste gas can reach the requirement of China's discharging gas discharge standard after treatment.
Particularly, the utility model provides following technical scheme.
A kind of low concentration VOCs exhaust treatment system, this system comprises: send into the blower fan of waste gas, blower fan links to each other by guide pipeline with adsorbent equipment, but the gas evacuated tube of switch is drawn on the adsorbent equipment top; But vavuum pump is by the guide pipeline connection adsorbent equipment of switch and the arrival end of membrane separator, and the port of export of membrane separator is drawn two guide pipelines, and one is connected to forecooler, and another is connected in the entrance of blower fan; The two ends of condenser are connected in forecooler, draw three guide pipelines from the condenser bottom, and two are connected to repeatedly in cold storage compression refrigeration unit (RFG) conduct turnover tracheae, and another is connected in collecting tank.
Preferably, above-mentioned low concentration VOCs exhaust treatment system, the RFG other end is drawn two pipelines, respectively as water inlet pipe and the return pipe of recirculated cooling water.
Compared with prior art, the utlity model has following advantage:
1, system described in the utility model and technique are mainly used in administering the VOCs waste gas of low concentration, and the VOCs waste gas that produces such as occasions such as oil product and chemical products entrucking process, storage tank, cesspools is for new technology has been set up in the improvement of such waste gas.
2, the mode that combines of process using adsorption technology described in the utility model, membrane separation technique and condensation technology, by adsorption technology to the preliminary concentrate of VOCs waste gas, membrane separation technique to its secondary concentrate after, carry out condensation with the VOCs waste gas of condensation technology after to concentrate, consume less cold and can reach the saturated purpose of separating out of organic component.
3, system described in the utility model can realize the automatic operating of height, and the discharging gas discharge index after the processing can reach the requirement of China's discharge standard.
Description of drawings
Fig. 1 exhaust treatment system structure flow chart
Description of reference numerals: 1-blower fan, 2-adsorbent equipment, 3-vavuum pump, 4-membrane separator, 5-forecooler, 6-condenser, 7-RFG, 8-collecting tank
The specific embodiment
Below in conjunction with specific embodiment the technical solution of the utility model is described further.
Low concentration VOCs exhaust treatment system, this system comprises: send into the blower fan 1 of waste gas, blower fan 1 and adsorbent equipment 2 link to each other by guide pipeline, but the gas evacuated tube of switch is drawn on adsorbent equipment 2 tops; But vavuum pump 3 is by the guide pipeline connection adsorbent equipment 2 of switch and the arrival end of membrane separator 4, and the port of export of membrane separator 4 is drawn two guide pipelines, and one is connected to forecooler 5, and another is connected in the entrance of blower fan 1; The two ends of condenser 6 are connected in forecooler, draw three guide pipelines from condenser 6 bottoms, and two are connected to RFG7 repeatedly as the turnover tracheae, and another is connected in collecting tank 8; The RFG7 other end is drawn two pipelines, respectively as water inlet pipe and the return pipe of recirculated cooling water.
Should be noted that; the above only is preferred embodiment of the present utility model; be not limited to scope of the present utility model; all any modifications of having done within spirit of the present utility model and principle, the replacement that is equal to and improvement etc. all should be included within the protection domain of the present utility model.
Claims (2)
1. low concentration VOCs exhaust treatment system, it is characterized in that this system comprises: send into the blower fan (1) of waste gas, blower fan (1) links to each other by guide pipeline with adsorbent equipment (2), adsorbent equipment (2) but the gas evacuated tube of switch is drawn on the top; Vavuum pump (3) but guide pipeline by switch connects the arrival end of adsorbent equipment (2) and membrane separator (4), the port of export of membrane separator (4) is drawn two guide pipelines, article one, be connected to forecooler (5), another is connected in the entrance of blower fan (1); The two ends of condenser (6) are connected in forecooler, draw three guide pipelines from condenser (6) bottom, and two are connected to cold storage compression refrigeration unit (7) repeatedly as the turnover tracheae, and another is connected in collecting tank (8).
2. low concentration VOCs exhaust treatment system according to claim 1 is characterized in that, RFG(7) other end is drawn two pipelines, respectively as water inlet pipe and the return pipe of recirculated cooling water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220460044.9U CN202778219U (en) | 2012-09-11 | 2012-09-11 | System for treating low-concentration VOCs (Volatile Organic Chemicals) waste gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220460044.9U CN202778219U (en) | 2012-09-11 | 2012-09-11 | System for treating low-concentration VOCs (Volatile Organic Chemicals) waste gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202778219U true CN202778219U (en) | 2013-03-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220460044.9U Expired - Lifetime CN202778219U (en) | 2012-09-11 | 2012-09-11 | System for treating low-concentration VOCs (Volatile Organic Chemicals) waste gas |
Country Status (1)
| Country | Link |
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| CN (1) | CN202778219U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102794079A (en) * | 2012-09-11 | 2012-11-28 | 江苏智道工程技术有限公司 | System and technology for processing low-concentration VOCs (volatile organic chemicals) waste gas |
| CN106310697A (en) * | 2015-07-03 | 2017-01-11 | 江苏金门能源装备有限公司 | Novel integrated oil and gas deep recovery and emission control device |
| CN107485977A (en) * | 2016-06-13 | 2017-12-19 | 河北子瑜环保科技有限公司 | A kind of VOCs waste gas treatment process and processing unit |
-
2012
- 2012-09-11 CN CN201220460044.9U patent/CN202778219U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102794079A (en) * | 2012-09-11 | 2012-11-28 | 江苏智道工程技术有限公司 | System and technology for processing low-concentration VOCs (volatile organic chemicals) waste gas |
| CN106310697A (en) * | 2015-07-03 | 2017-01-11 | 江苏金门能源装备有限公司 | Novel integrated oil and gas deep recovery and emission control device |
| CN107485977A (en) * | 2016-06-13 | 2017-12-19 | 河北子瑜环保科技有限公司 | A kind of VOCs waste gas treatment process and processing unit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130313 |
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| CX01 | Expiry of patent term |