CN215027317U - Non-methane total hydrocarbon and nitrogen oxide treatment system - Google Patents
Non-methane total hydrocarbon and nitrogen oxide treatment system Download PDFInfo
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- CN215027317U CN215027317U CN202120633285.8U CN202120633285U CN215027317U CN 215027317 U CN215027317 U CN 215027317U CN 202120633285 U CN202120633285 U CN 202120633285U CN 215027317 U CN215027317 U CN 215027317U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
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Abstract
The utility model relates to a total hydrocarbon of non-methane and nitrogen oxide processing technology field specifically are a total hydrocarbon of non-methane and nitrogen oxide processing system, including first main fan, first main fan is connected with second main fan, the second main fan is connected with the one-level spray column in the one end of keeping away from first main fan, the one-level spray column is connected with the second grade spray column, the second grade spray column is connected with the defroster in the one side of keeping away from the one-level spray column, first CO fan and second CO fan are connected respectively to the end of giving vent to anger of defroster, through the pipe connection between first CO fan and the second CO fan, the end of giving vent to anger of first CO fan is connected with chimney and CO heat exchanger. The utility model discloses a set up one-level spray column and second grade spray column, guarantee that water-soluble's material and dust, the impurity that probably smugglies secretly in the waste gas are fully got rid of, through setting up the defroster, guarantee to get into the humidity of CO catalytic oxidation stove to reduce the required energy consumption of furnace intensification.
Description
Technical Field
The utility model relates to a total hydrocarbon of non-methane and nitrogen oxide processing technology field specifically are total hydrocarbon of non-methane and nitrogen oxide processing system.
Background
In the trades such as new material, pharmacy, chemical industry, heating and power supply, the mixed waste gas of non-methane total hydrocarbon and nitrogen oxide that produces can cause certain injury to human health, and prior art is administered to the organic waste gas of low amount of wind, high concentration, generates carbon dioxide and water, can also satisfy.
However, in the case of treating organic waste gas, nitrogen oxides, namely inorganic compounds, cannot meet the requirements only by spraying and catalytic oxidation equipment, and a non-methane total hydrocarbon and nitrogen oxide treatment system is provided for the purpose.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a non-methane total hydrocarbon and nitrogen oxide processing system to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme:
a non-methane total hydrocarbon and nitrogen oxide treatment system comprises a first main fan, a second main fan is connected with the first main fan, the second main blower is connected with a primary spray tower at one end far away from the first main blower, the primary spray tower is connected with a secondary spray tower, the side of the secondary spray tower far away from the primary spray tower is connected with a demister, the air outlet end of the demister is respectively connected with a first CO fan and a second CO fan, the first CO fan and the second CO fan are connected through a pipeline, the air outlet end of the first CO fan is connected with a chimney and a CO heat exchanger, the chimney is also connected with a CO catalytic oxidation furnace, the CO catalytic oxidation furnace is connected with an SCR heat exchanger, the SCR heat exchanger is connected with an SCR reactor, the SCR heat exchanger is connected with a CO heat exchanger, the SCR reactor is also connected with a pipeline connected between the chimney and the CO catalytic oxidation furnace;
preferably, the gas inlet ends of the first CO blower and the second CO blower are further provided with a combustible gas concentration detector LEL;
preferably, a flame arrester is further installed on a pipeline connecting the first CO fan and the CO heat exchanger;
preferably, the CO catalytic oxidation furnace is provided with a thermocouple and an explosion venting sheet;
preferably, the SCR reactor uses 20% ammonia water as a reducing agent;
preferably, the second CO blower is fixedly provided with a waste gas collecting pipeline at one end far away from the first CO blower.
Compared with the prior art, the beneficial effects of the utility model are that:
1. this non-methane total hydrocarbon and nitrogen oxide processing system through setting up one-level spray column and second grade spray column, guarantees that water-soluble material and dust, the impurity that probably smugglies secretly in the waste gas are fully got rid of, through setting up the defroster, guarantees to get into the humidity of CO catalytic oxidation stove to reduce the required energy consumption of furnace intensification.
2. This non-methane total hydrocarbon and nitrogen oxide processing system sets up combustible gas concentration detector LEL before the CO fan, its effect is the explosion limit of survey, guarantee the security of VOCs treatment facility, main fan and CO fan are all one and use for one, guarantee that the long-term steady operation of system is not influenced by single fan trouble, through two-stage heat exchanger, recycle the heat after the catalytic combustion, reduce the energy consumption, through CO catalytic oxidation stove, let waste gas catalytic combustion, generate water and carbon dioxide, through the SCR reactor, regard 20% aqueous ammonia as the reductant, convert nitrogen oxide into nitrogen gas and water, discharge standard has been reached.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention;
fig. 2 is a schematic flow chart of the present invention.
In the figure: 1. a first main blower; 2. a second main blower; 3. a first stage spray tower; 4. a secondary spray tower; 5. a demister; 6. a first CO fan; 7. a second CO fan; 8. a flame arrestor; 9. a chimney; 10. a CO heat exchanger; 11. a CO catalytic oxidation furnace; 12. an SCR heat exchanger; 13. an SCR reactor.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.
In the description of this patent, it is noted that unless otherwise specifically stated or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly and can include, for example, fixedly connected, disposed, detachably connected, disposed, or integrally connected and disposed. The specific meaning of the above terms in this patent may be understood by those of ordinary skill in the art as appropriate.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.
Referring to fig. 1-2, the present invention provides a technical solution:
a non-methane total hydrocarbon and nitrogen oxide treatment system comprises a first main fan 1, wherein the first main fan 1 is connected with a second main fan 2, one end, far away from the first main fan 1, of the second main fan 2 is connected with a primary spray tower 3, the primary spray tower 3 is connected with a secondary spray tower 4, one side, far away from the primary spray tower 3, of the secondary spray tower 4 is connected with a demister 5, the air outlet end of the demister 5 is respectively connected with a first CO fan 6 and a second CO fan 7, the first CO fan 6 and the second CO fan 7 are connected through a pipeline, the air outlet end of the first CO fan 6 is connected with a chimney 9 and a CO heat exchanger 10, the chimney 9 is further connected with a CO catalytic oxidation furnace 11, the CO catalytic oxidation furnace 11 is connected with an SCR heat exchanger 12, the SCR heat exchanger 12 is connected with an SCR reactor 13, the SCR heat exchanger 12 is connected with the CO heat exchanger 10, and the SCR reactor 13 is further connected with a pipeline connected between the chimney 9 and the CO catalytic oxidation furnace 11;
in this embodiment, preferably, the gas inlet ends of the first CO blower 6 and the second CO blower 7 are further provided with a combustible gas concentration detector LEL;
in this embodiment, preferably, a flame arrester 8 is further installed on a pipeline connecting the first CO fan 6 and the CO heat exchanger 10;
in this embodiment, preferably, the CO catalytic oxidation furnace 11 is provided with a thermocouple and a explosion venting sheet;
in this embodiment, it is preferable that the SCR reactor 13 uses 20% ammonia as a reducing agent;
in this embodiment, preferably, the second CO blower 7 is fixedly provided with an exhaust gas collecting pipe at an end far away from the first CO blower 6.
When the non-methane total hydrocarbon and nitrogen oxide treatment system is used, a first-stage spray tower 3 and a second-stage spray tower 4 are arranged to ensure that water-soluble substances in waste gas and dust and impurities possibly carried in the waste gas are sufficiently removed, a demister 5 is arranged to ensure the humidity of the waste gas entering a CO catalytic oxidation furnace 11 so as to reduce the energy consumption required by heating of a hearth, a combustible gas concentration detector LEL is arranged in front of a CO fan and has the functions of measuring the explosion limit and ensuring the safety of VOCs treatment equipment, a main fan and the CO fan are used for one standby, the long-term stable operation of the system is ensured not influenced by the fault of a single fan, the heat after catalytic combustion is recycled through a two-stage heat exchanger so as to reduce the energy consumption, the waste gas is catalytically combusted through the CO catalytic oxidation furnace 11 to generate water and carbon dioxide, 20 percent ammonia water is used as a reducing agent through an SCR reactor 13, the nitrogen oxides are converted into nitrogen and water, and the emission standard is met.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the description in the above embodiments and the description is only preferred examples of the present invention, and is not intended to limit the present invention, and that the present invention can have various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications all fall into the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (6)
1. A non-methane total hydrocarbons and nitrogen oxides treatment system comprising a first main blower (1), characterized in that: the first main fan (1) is connected with a second main fan (2), one end of the second main fan (2) far away from the first main fan (1) is connected with a primary spray tower (3), the primary spray tower (3) is connected with a secondary spray tower (4), one side of the secondary spray tower (4) far away from the primary spray tower (3) is connected with a demister (5), the air outlet end of the demister (5) is respectively connected with a first CO fan (6) and a second CO fan (7), the first CO fan (6) and the second CO fan (7) are connected through a pipeline, the air outlet end of the first CO fan (6) is connected with a chimney (9) and a CO heat exchanger (10), the chimney (9) is also connected with a CO catalytic oxidation furnace (11), the CO catalytic oxidation furnace (11) is connected with an SCR heat exchanger (12), the SCR heat exchanger (12) is connected with an SCR reactor (13), the SCR heat exchanger (12) is connected with the CO heat exchanger (10), and the SCR reactor (13) is also connected with a pipeline connected between the chimney (9) and the CO catalytic oxidation furnace (11).
2. The non-methane total hydrocarbons and nitrogen oxides treatment system according to claim 1, wherein: and combustible gas concentration detectors LEL are further mounted at the air inlet ends of the first CO fan (6) and the second CO fan (7).
3. The non-methane total hydrocarbons and nitrogen oxides treatment system according to claim 1, wherein: and a flame arrester (8) is further arranged on a pipeline connecting the first CO fan (6) and the CO heat exchanger (10).
4. The non-methane total hydrocarbons and nitrogen oxides treatment system according to claim 1, wherein: the CO catalytic oxidation furnace (11) is provided with a thermocouple and an explosion venting sheet.
5. The non-methane total hydrocarbons and nitrogen oxides treatment system according to claim 1, wherein: the SCR reactor (13) uses 20% ammonia as a reducing agent.
6. The non-methane total hydrocarbons and nitrogen oxides treatment system according to claim 1, wherein: and a waste gas collecting pipeline is fixedly arranged at one end of the second CO fan (7) far away from the first CO fan (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120633285.8U CN215027317U (en) | 2021-03-29 | 2021-03-29 | Non-methane total hydrocarbon and nitrogen oxide treatment system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120633285.8U CN215027317U (en) | 2021-03-29 | 2021-03-29 | Non-methane total hydrocarbon and nitrogen oxide treatment system |
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| Publication Number | Publication Date |
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| CN215027317U true CN215027317U (en) | 2021-12-07 |
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| CN202120633285.8U Active CN215027317U (en) | 2021-03-29 | 2021-03-29 | Non-methane total hydrocarbon and nitrogen oxide treatment system |
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| CN (1) | CN215027317U (en) |
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2021
- 2021-03-29 CN CN202120633285.8U patent/CN215027317U/en active Active
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