CN103611380A - Waste gas purification system - Google Patents
Waste gas purification system Download PDFInfo
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- CN103611380A CN103611380A CN201310618399.5A CN201310618399A CN103611380A CN 103611380 A CN103611380 A CN 103611380A CN 201310618399 A CN201310618399 A CN 201310618399A CN 103611380 A CN103611380 A CN 103611380A
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Abstract
The invention relates to a waste gas purification system. The waste gas purification system comprises a water tank and an oxidation tank filled with oxidizing agents, wherein a first gas inlet pipe and a first gas outlet pipe are arranged on the water tank; a second gas inlet pipe and a second gas outlet pipe are arranged on the oxidation tank; the first gas outlet pipe is communicated with the second gas inlet pipe; a concentration determination device which is used for determining the concentration of harmful gas in waste gas is connected to the second gas outlet pipe; a three-way flow divider valve is arranged at an outlet of the concentration determination device; a flow divider port of the three-way flow divider valve is connected with the second gas inlet pipe, and another flow divider port of the three-way flow divider valve serves as a gas exhaust port of the whole system. The concentration of the harmful gas is tested, and the three-way flow divider valve is controlled according to a test result; when the concentration is in accordance with an environmental protection emission standard, the harmful gas can be directly emitted; when the concentration exceeds the standard, the harmful gas enters the oxidation tank through a pipeline for re-purification; the whole system can be used for effectively treating various harmful substances such as dust, sulfide and nitrogen oxide contained in the waste gas and peculiar smell in the waste gas; the emitted gas no longer pollutes the environment.
Description
Technical field
The present invention relates to environmental technology field, especially relate to a kind of waste gas cleaning system.
Background technology
Waste gas purification mainly refers to the work of administering for industrial waste gas such as dust granules thing, flue gas flue dust, gas with foreign flavor, the toxic and harmful of industrial site generation.Common waste gas purification has factory's fume and exhaust gas purifying, workshop dust waste gas purification, organic waste-gas purification, the purification of waste gas peculiar smell, acid-base waste gas purifying, purification of chemical waste gas etc.The industry of the generation peculiar smell such as off-gas cleaning equipment is generally applied in chemical plant, Electronics Factory, the Chang, automobile factory of spraying paint, coating factory, petroleum chemical industry, Furniture Factory, food factory, rubber plant, plastic cement factory, stink, toxic and harmful.Traditional waste gas purification apparatus, mainly to utilize active carbon to adsorb, active carbon purifying is physical process, only the waste gas through active carbon also contains some impurity and dust, and clean-up effect is undesirable, and in order to reduce harmful gases diffusion, need to use chemical method to purify, that uses at present has medicament absorption process, Production by Catalytic Combustion Process, a plasma method of purification etc., and these methods are used all more single, can not be the comprehensively complete clean-up effect that reaches.
Summary of the invention
Technical problem to be solved by this invention is to provide one kind of multiple purification set and is integrated the waste gas cleaning system that reaches comprehensive complete clean-up effect.
The present invention solves the technical scheme that its technical problem takes: a kind of waste gas cleaning system, the oxidation case that comprises water tank and oxidant is housed, described water tank is provided with the first air inlet pipe and the first escape pipe, and the first air inlet pipe is inserted below the interior liquid level of water tank, and the first escape pipe is positioned at tank top; Described oxidation case is provided with the second air inlet pipe and the second escape pipe, the second air inlet pipe is inserted below oxidation case liquid level, the second escape pipe is positioned at oxidation box top, the first described escape pipe and the second air inlet pipe are communicated with, on the second described escape pipe, be connected with for measuring the concentration measurement apparatus of waste gas harmful gas concentration, exit at concentration measurement apparatus is provided with three-way flow divider valve, and diffluence pass of three-way flow divider valve is connected with the second air inlet pipe, the exhaust outlet that another diffluence pass is whole system.
Further, in order to remove the peculiar smell in waste gas, described exhaust ports is connected with absorbent charcoal adsorber.
Further, in order to reduce the content of oxynitrides in waste gas, between the outlet of described oxidation case and concentration measurement apparatus, be provided with SCR catalytic unit.
Further, in order automatically to control the opening and closing of three-way flow divider valve diffluence pass, described cleaning system also comprises a controller, what three-way flow divider valve adopted is magnetic valve, controller is electrically connected to three-way flow divider valve and concentration measurement apparatus, the concentration signal that concentration measurement apparatus detects pernicious gas in waste gas passes to controller, and controller is according to signal judgement three-way flow divider valve open and close diffluence pass.
Further, in order to guarantee that the waste gas of the second air inlet pipe can not flow into three-way flow divider valve by pipeline, is provided with a check valve between described three-way flow divider valve and the second air inlet pipe.
Further, before purifying, the shape by pipeline stays bulky grain dust and impurity, and the first described air inlet pipe takes the shape of the letter U, and at the bottommost of U-shaped, is provided with one for storing the storage dirt place of dust, and bottom, storage dirt place is provided with the seal cover of can folding closing.
The invention has the beneficial effects as follows: adopted said system to process, by harmful gas concentration is tested, according to the result of test, control three-way flow divider valve afterwards, when concentration meets environmental emission standard, can directly discharge, when concentration over-standard enters oxidation case by pipeline, carry out purification run again; By controller, control three-way flow divider valve, can effectivelyly reach whole system and automatically process waste gas; Employing SCR catalytic unit can make the oxynitrides in pernicious gas further reduce and meet discharge standard; Contained various harmful substances are as the peculiar smell in dust, sulfide, oxynitrides and waste gas in can effectively processing waste gas for whole system, and the gas of discharge is no longer to environment.
Accompanying drawing explanation
Fig. 1 is system architecture schematic diagram of the present invention.
In figure: 1, the first air inlet pipe; 2, storage dirt place; 3, the first escape pipe; 4, water tank; 5, check valve; 6, the second air inlet pipe; 7, oxidation case; 8, the second escape pipe; 9, SCR catalytic unit; 10, concentration measurement apparatus; 11, controller; 12, three-way flow divider valve; 121,122, diffluence pass; 13, absorbent charcoal adsorber; 14, exhaust outlet.
The specific embodiment
Below in conjunction with accompanying drawing, the present invention is explained in detail.
A waste gas cleaning system as described in Figure 1, the oxidation case 7 that comprises water tank 4 and oxidant is housed, described water tank 4 is provided with the first air inlet pipe 1 and the first escape pipe 3, the first air inlet pipe 1 are inserted below the interior liquid level of water tank 4, and the first escape pipe 3 is positioned at water tank 4 tops; Described oxidation case 7 is provided with the second air inlet pipe 6 and the second escape pipe 8, the second air inlet pipe 6 is inserted below oxidation case 7 liquid levels, the second escape pipe 8 is positioned at oxidation case 7 tops, the first described escape pipe 3 and the second air inlet pipe 6 are communicated with, on the second described escape pipe 8, be connected with for measuring the concentration measurement apparatus 10 of waste gas harmful gas concentration, in the exit of concentration measurement apparatus 10, be provided with three-way flow divider valve 12,12 1 diffluence pass 122 of three-way flow divider valve are connected with the second air inlet pipe 6, the exhaust outlet 14 that another diffluence pass 121 is whole system; Described exhaust outlet 14 places are connected with absorbent charcoal adsorber 13; Between the outlet of described oxidation case 7 and concentration measurement apparatus 10, be provided with SCR catalytic unit 9; Described cleaning system also comprises a controller 11, what three-way flow divider valve 12 adopted is magnetic valve, controller 11 is electrically connected to three-way flow divider valve 12 and concentration measurement apparatus 10, the concentration signal that concentration measurement apparatus 10 detects pernicious gas in waste gas passes to controller 11, and controller 11 is according to signal judgement three-way flow divider valve 12 open and close diffluence pass 121,122; Between described three-way flow divider valve 12 and the second air inlet pipe 6, be provided with a check valve 5; The first described air inlet pipe 1 takes the shape of the letter U, and at the bottommost of U-shaped, is provided with one for storing the storage dirt place 2 of dust, and storage 2 bottoms, dirt place are provided with the seal cover of can folding closing.
The whole workflow of system is: first waste gas enters by the first air inlet pipe 1, owing to adopting U-shaped pipeline that the speed of air inlet is declined, in waste gas, the impurity of larger particles enters into the storage dirt place 2 of U-shaped pipeline least significant end along U-shaped pipeline, waste gas enters in water tank 4 afterwards, water in water tank 4 is stayed the dust of waste gas small particles in water, waste gas enters into the liquid in oxidation case 7 by the first escape pipe 3 and the second air inlet pipe 6 afterwards, oxidation case 7 is oxidized waste gas, will be wherein the material such as sulfur dioxide remove, the oxynitrides of processing in waste gas by SCR catalytic unit 9 afterwards, reduce the content of oxynitrides in waste gas, waste gas enters concentration measurement apparatus 10 afterwards, concentration measurement apparatus 10 passes to controller 11 by the cont signal of various gases in waste gas, controller 11 contrasts gas content and standard, when the concentration of pernicious gas is during higher than standard, controller 11 is controlled three-way flow divider valve 12 and by check valve 5 and the second air inlet pipe 6, is entered in oxidation case 7 and carried out purified treatment again again by diffluence pass 122, check valve 5 can prevent from entering in three-way flow divider valve 12 from waste gas out in water tank 4, when concentration measurement apparatus 10 measure pernicious gas in waste gas each below the mark, controller 11 control three-way flow divider valves 12 by after diffluence pass 121 through the peculiar smell in absorbent charcoal adsorber 13 absorption waste gas, be discharged in atmospheric environment afterwards.
It is emphasized that: be only preferred embodiment of the present invention above, not the present invention is done to any pro forma restriction, any simple modification, equivalent variations and modification that every foundation technical spirit of the present invention is done above embodiment, all still belong in the scope of technical solution of the present invention.
Claims (6)
1. a waste gas cleaning system, the oxidation case (7) that comprises water tank (4) and oxidant is housed, described water tank (4) is provided with the first air inlet pipe (1) and the first escape pipe (3), the first air inlet pipe (1) is inserted below the interior liquid level of water tank (4), and the first escape pipe (3) is positioned at water tank (4) top, described oxidation case (7) is provided with the second air inlet pipe (6) and the second escape pipe (8), the second air inlet pipe (6) is inserted oxidation case (7) below liquid level, the second escape pipe (6) is positioned at oxidation case (7) top, described the first escape pipe (3) and the second air inlet pipe (6) are communicated with, it is characterized in that: on described the second escape pipe (8), be connected with the concentration measurement apparatus (10) for measuring waste gas harmful gas concentration, in the exit of concentration measurement apparatus (10), be provided with three-way flow divider valve (12), (12) diffluence pass of three-way flow divider valve (122) are connected with the second air inlet pipe (6), the exhaust outlet (14) that another diffluence pass (121) is whole system.
2. waste gas cleaning system according to claim 1, is characterized in that: described exhaust outlet (14) locates to be connected with absorbent charcoal adsorber (13).
3. waste gas cleaning system according to claim 1, is characterized in that: between the outlet of described oxidation case (7) and concentration measurement apparatus (10), be provided with SCR catalytic unit (9).
4. waste gas cleaning system according to claim 1, it is characterized in that: described cleaning system also comprises a controller (11), what three-way flow divider valve (12) adopted is magnetic valve, controller (11) is electrically connected to three-way flow divider valve (12) and concentration measurement apparatus (10), the concentration signal that concentration measurement apparatus (10) detects pernicious gas in waste gas passes to controller (11), and controller (11) is according to signal judgement three-way flow divider valve (12) open and close diffluence pass (121,122).
5. waste gas cleaning system according to claim 1, is characterized in that: between described three-way flow divider valve (12) and the second air inlet pipe (6), be provided with a check valve (5).
6. part waste gas cleaning system according to claim 1, is characterized in that: described the first air inlet pipe (1) takes the shape of the letter U, and at the bottommost of U-shaped, is provided with one for storing the storage dirt place (2) of dust, and bottom, storage dirt place (2) is provided with the seal cover of can folding closing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310618399.5A CN103611380A (en) | 2013-11-29 | 2013-11-29 | Waste gas purification system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310618399.5A CN103611380A (en) | 2013-11-29 | 2013-11-29 | Waste gas purification system |
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| CN103611380A true CN103611380A (en) | 2014-03-05 |
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| CN201310618399.5A Pending CN103611380A (en) | 2013-11-29 | 2013-11-29 | Waste gas purification system |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106139852A (en) * | 2016-08-29 | 2016-11-23 | 中国恩菲工程技术有限公司 | Benitration reactor |
| CN107149846A (en) * | 2017-07-11 | 2017-09-12 | 江苏龙净科杰催化剂再生有限公司 | A kind of RTO waste gas separates and collects device and its control method |
| CN109045961A (en) * | 2018-07-20 | 2018-12-21 | 芜湖新农夫机械有限公司 | A kind of hot-blast stove emission-control equipment |
| CN109593549A (en) * | 2019-01-11 | 2019-04-09 | 尹扬 | A kind of device for stablizing tower overhead gas for recycling gasoline hydrogenation device |
| CN111359362A (en) * | 2020-04-28 | 2020-07-03 | 漯河职业技术学院 | Workshop dust treatment device |
| CN112604430A (en) * | 2020-11-23 | 2021-04-06 | 泰州市环宇复合材料有限公司 | Environmental protection machinery sprays dust collector |
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| US3504481A (en) * | 1967-12-11 | 1970-04-07 | Agop G Zakarian | Air filtering system |
| CN2151804Y (en) * | 1993-03-11 | 1994-01-05 | 郭天送 | Waste gas purifier |
| JP2000291421A (en) * | 1999-04-01 | 2000-10-17 | Tmg:Kk | Exhaust emission control method for internal combustion engine or the like |
| CN200999201Y (en) * | 2007-01-30 | 2008-01-02 | 刘胜祥 | Hydrogen phosphide gas reclaimer |
| CN102301103A (en) * | 2009-01-30 | 2011-12-28 | 三菱重工业株式会社 | Exhaust gas cleaning device |
| CN103349881A (en) * | 2013-08-08 | 2013-10-16 | 上海台安工程实业有限公司 | Multifunctional environment-friendly asphalt flue gas purification system |
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2013
- 2013-11-29 CN CN201310618399.5A patent/CN103611380A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3504481A (en) * | 1967-12-11 | 1970-04-07 | Agop G Zakarian | Air filtering system |
| CN2151804Y (en) * | 1993-03-11 | 1994-01-05 | 郭天送 | Waste gas purifier |
| JP2000291421A (en) * | 1999-04-01 | 2000-10-17 | Tmg:Kk | Exhaust emission control method for internal combustion engine or the like |
| CN200999201Y (en) * | 2007-01-30 | 2008-01-02 | 刘胜祥 | Hydrogen phosphide gas reclaimer |
| CN102301103A (en) * | 2009-01-30 | 2011-12-28 | 三菱重工业株式会社 | Exhaust gas cleaning device |
| CN103349881A (en) * | 2013-08-08 | 2013-10-16 | 上海台安工程实业有限公司 | Multifunctional environment-friendly asphalt flue gas purification system |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106139852A (en) * | 2016-08-29 | 2016-11-23 | 中国恩菲工程技术有限公司 | Benitration reactor |
| CN107149846A (en) * | 2017-07-11 | 2017-09-12 | 江苏龙净科杰催化剂再生有限公司 | A kind of RTO waste gas separates and collects device and its control method |
| CN109045961A (en) * | 2018-07-20 | 2018-12-21 | 芜湖新农夫机械有限公司 | A kind of hot-blast stove emission-control equipment |
| CN109593549A (en) * | 2019-01-11 | 2019-04-09 | 尹扬 | A kind of device for stablizing tower overhead gas for recycling gasoline hydrogenation device |
| CN111359362A (en) * | 2020-04-28 | 2020-07-03 | 漯河职业技术学院 | Workshop dust treatment device |
| CN111359362B (en) * | 2020-04-28 | 2021-07-23 | 漯河职业技术学院 | Workshop dust treatment device |
| CN112604430A (en) * | 2020-11-23 | 2021-04-06 | 泰州市环宇复合材料有限公司 | Environmental protection machinery sprays dust collector |
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Application publication date: 20140305 |