CN212819150U - Be applied to flue gas denitration device of thermal power factory - Google Patents
Be applied to flue gas denitration device of thermal power factory Download PDFInfo
- Publication number
- CN212819150U CN212819150U CN202020173773.0U CN202020173773U CN212819150U CN 212819150 U CN212819150 U CN 212819150U CN 202020173773 U CN202020173773 U CN 202020173773U CN 212819150 U CN212819150 U CN 212819150U
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- China
- Prior art keywords
- reactor
- flue gas
- denitration
- boiler
- dust remover
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims abstract description 33
- 239000003546 flue gas Substances 0.000 title claims abstract description 33
- 239000000428 dust Substances 0.000 claims abstract description 28
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 19
- 239000002699 waste material Substances 0.000 claims abstract description 11
- 239000000779 smoke Substances 0.000 claims abstract description 8
- 238000011084 recovery Methods 0.000 claims abstract description 7
- 239000007788 liquid Substances 0.000 claims abstract description 6
- 239000007921 spray Substances 0.000 claims description 4
- 239000003054 catalyst Substances 0.000 abstract description 11
- 241000208125 Nicotiana Species 0.000 abstract description 7
- 235000002637 Nicotiana tabacum Nutrition 0.000 abstract description 7
- 238000006243 chemical reaction Methods 0.000 abstract description 7
- 239000000126 substance Substances 0.000 abstract description 7
- 230000000694 effects Effects 0.000 abstract description 6
- 239000012535 impurity Substances 0.000 abstract description 4
- 238000005265 energy consumption Methods 0.000 abstract description 3
- 230000006978 adaptation Effects 0.000 abstract description 2
- 235000019504 cigarettes Nutrition 0.000 abstract 2
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- 239000003245 coal Substances 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 235000019738 Limestone Nutrition 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 235000010216 calcium carbonate Nutrition 0.000 description 1
- 239000006028 limestone Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
Images
Abstract
The application discloses be applied to flue gas denitrification facility of thermal power factory, include the dust remover be connected with the boiler and the reactor of being connected with the dust remover, the cigarette pipeline that advances of reactor is provided with the heat exchanger, the reactor inside wall is provided with the denitration agent shower nozzle, the shower nozzle passes through pump and outside denitration agent holding vessel intercommunication, the bottom of reactor is provided with waste liquid recovery pipe, the play cigarette pipeline of reactor is provided with air heater, air heater's export and boiler connection. The device, the heat exchanger that usable reactor advanced tobacco pipe way department adjusts the flue gas temperature that gets into in the reactor to the reaction temperature of adaptation catalyst improves catalyst activity and denitration efficiency, and utilizes the dust remover can filter the dust or the impurity in the flue gas and get rid of, can further improve denitration efficiency. Meanwhile, the air preheater at the smoke outlet pipeline of the reactor can be used for preheating the substances which enter the boiler again after the denitration reaction, so that the heat exchange performance of the boiler is improved, and the energy consumption and the resource waste are reduced.
Description
Technical Field
The application relates to a thermal power plant application especially relates to a be applied to flue gas denitration device of thermal power plant.
Background
At present, when NOx in coal combustion is treated, the treatment is usually completed by using a corresponding denitration device, and meanwhile, for the consideration of treatment effect, the treatment is assisted by adding a corresponding catalyst. However, the reaction temperature suitable for different catalysts is different, the inlet flue gas temperature of the denitration device changes along with the change of the boiler load, the inlet flue gas temperature is not the temperature suitable for the catalyst, the activity of the catalyst is further influenced, the denitration efficiency is reduced, and the flue gas after coal combustion contains dust and impurities, so that the denitration efficiency is further influenced; meanwhile, if a part of substances after flue gas denitration is directly discarded, the problem of resource waste exists.
Therefore, the problem of how to improve the denitration efficiency and avoid resource waste is a problem to be urgently solved by the technical personnel in the field.
SUMMERY OF THE UTILITY MODEL
The application provides a flue gas denitration device for thermal power factory has solved how to improve denitration efficiency among the prior art, avoids the problem of wasting of resources.
For solving above-mentioned technical problem, the application provides a be applied to flue gas denitrification facility of thermal power factory, includes:
the denitration agent device comprises a dust remover connected with a boiler and a reactor connected with the dust remover, wherein a heat exchanger is arranged in a smoke inlet pipeline of the reactor, a denitration agent spray head is arranged on the inner side wall of the reactor, the spray head is communicated with an external denitration agent storage tank through a pump, a waste liquid recovery pipe is arranged at the bottom of the reactor, an air preheater is arranged in a smoke outlet pipeline of the reactor, and an outlet of the air preheater is connected with the boiler.
Preferably, the heat exchanger is a tubular heat exchanger.
Preferably, the dust remover is a high-temperature electric dust remover.
Compared with the prior art, the utility model provides a be applied to flue gas denitration device of thermal power factory, include the dust remover be connected with the boiler and the reactor of being connected with the dust remover, the advancing tobacco pipe of reactor says and is provided with the heat exchanger, the reactor inside wall is provided with the denitration agent shower nozzle, the shower nozzle passes through pump and outside denitration agent holding vessel intercommunication, the bottom of reactor is provided with waste liquid recovery pipe, the play tobacco pipe way of reactor is provided with air heater, air heater's export and boiler connection. Therefore, by using the device, the temperature of the flue gas entering the reactor can be adjusted by using the heat exchanger at the flue gas inlet pipeline of the reactor so as to adapt to the reaction temperature of the catalyst, thereby improving the activity of the catalyst and the denitration efficiency, and the dust remover can filter and remove dust or impurities in the flue gas, thereby further improving the denitration efficiency. Meanwhile, the air preheater at the smoke outlet pipeline of the reactor can be used for preheating the substances which enter the boiler again after the denitration reaction, so that the heat exchange performance of the boiler is improved, and the energy consumption and the resource waste are reduced.
Drawings
In order to more clearly explain the technical solution of the present application, the drawings needed to be used in the embodiments are briefly described below, and it is obvious to those skilled in the art that other drawings can be obtained according to the drawings without making any inventive changes.
Fig. 1 is the embodiment of the utility model provides a be applied to flue gas denitration device schematic structure diagram of thermal power factory.
Detailed Description
In order to make those skilled in the art better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be described clearly and completely with reference to the accompanying drawings.
The core of this application is to provide a flue gas denitrification facility for thermal power factory, can solve and how to improve denitration efficiency among the prior art, avoids the wasting of resources' problem.
Fig. 1 is the embodiment of the utility model provides a be applied to flue gas denitration device schematic structure diagram of thermal power factory, as shown in fig. 1, the device includes:
Specifically, the boiler 1 and the dust remover 2 and the reactor 3 are communicated through pipelines, and in order to improve the dust removal effect, the dust remover 2 can be preferably a high-temperature electric dust remover. A heat exchanger 4 is arranged at the smoke inlet pipeline of the reactor 3, and preferably, the heat exchanger 4 can be a tubular heat exchanger. When boiler flue gas enters the reactor 1 through the dust remover 2, the temperature of the flue gas can be adjusted to the temperature suitable for the catalyst after passing through the heat exchanger 2, when the load of the boiler 1 is reduced and the temperature of the flue gas entering the inlet of the reactor 3 is reduced, the temperature of a heat exchange medium of the heat exchanger 4 can be relatively increased by reducing the flow of the heat exchange medium of the heat exchanger 4, the heat exchange temperature and pressure of the heat exchanger 4 are reduced, the heat exchange quantity in the heat exchanger 4 is reduced, and the temperature of the flue gas at the outlet of the heat exchanger 4 is relatively increased to reach the temperature suitable; when the load of the boiler 1 is increased, the heat exchange process is opposite to the above process, and detailed description is omitted. Denitration agent shower nozzle 30 of 3 inside walls of reactor passes through pump 5 and communicates with denitration agent holding vessel 6 of outside, and denitration agent shower nozzle 30 can be a plurality of, and when the in-service use, can realize spraying of denitration agent in reactor 3 through the switch of operating pump 5, can choose for use the lime stone that the essential is CaCO3 as denitration agent. After denitration, after the flue gas and some substances which can be continuously combusted pass through the air preheater 7 of the flue gas outlet pipeline of the reactor 3, the flue gas is discharged from the position A, the combustible substances enter the boiler 1 after being preheated, and the substances which can not be combusted are recovered through a waste liquid recovery pipe 31 at the bottom of the reactor 3.
The application provides a be applied to flue gas denitration device of thermal power factory, include the dust remover be connected with the boiler and the reactor of being connected with the dust remover, the entering tobacco pipe way of reactor is provided with the heat exchanger, the reactor inside wall is provided with the denitration agent shower nozzle, the shower nozzle passes through pump and outside denitration agent holding vessel intercommunication, the bottom of reactor is provided with waste liquid recovery pipe, the play tobacco pipe way of reactor is provided with air heater, air heater's export and boiler connection. Therefore, by using the device, the temperature of the flue gas entering the reactor can be adjusted by using the heat exchanger at the flue gas inlet pipeline of the reactor so as to adapt to the reaction temperature of the catalyst, thereby improving the activity of the catalyst and the denitration efficiency, and the dust remover can filter and remove dust or impurities in the flue gas, thereby further improving the denitration efficiency. Meanwhile, the air preheater at the smoke outlet pipeline of the reactor can be used for preheating the substances which enter the boiler again after the denitration reaction, so that the heat exchange performance of the boiler is improved, and the energy consumption and the resource waste are reduced.
Other embodiments of the present application will be apparent to those skilled in the art from consideration of the specification and practice of the application disclosed herein. This application is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the application and including such departures from the present disclosure as come within known or customary practice in the art to which the invention pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope of the disclosure being indicated by the following claims.
It will be understood that the present application is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The above-described embodiments of the present application do not limit the scope of the present application.
Claims (3)
1. The utility model provides a be applied to flue gas denitrification facility of thermal power factory which characterized in that includes:
the denitration agent device comprises a dust remover connected with a boiler and a reactor connected with the dust remover, wherein a heat exchanger is arranged in a smoke inlet pipeline of the reactor, a denitration agent spray head is arranged on the inner side wall of the reactor, the spray head is communicated with an external denitration agent storage tank through a pump, a waste liquid recovery pipe is arranged at the bottom of the reactor, an air preheater is arranged in a smoke outlet pipeline of the reactor, and an outlet of the air preheater is connected with the boiler.
2. The flue gas denitration device applied to the thermal power plant of claim 1, wherein the heat exchanger is a tubular heat exchanger.
3. The flue gas denitration device applied to the thermal power plant of claim 2, wherein the dust remover is a high-temperature electric dust remover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020173773.0U CN212819150U (en) | 2020-02-13 | 2020-02-13 | Be applied to flue gas denitration device of thermal power factory |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020173773.0U CN212819150U (en) | 2020-02-13 | 2020-02-13 | Be applied to flue gas denitration device of thermal power factory |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212819150U true CN212819150U (en) | 2021-03-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020173773.0U Expired - Fee Related CN212819150U (en) | 2020-02-13 | 2020-02-13 | Be applied to flue gas denitration device of thermal power factory |
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| CN (1) | CN212819150U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111239327A (en) * | 2020-02-25 | 2020-06-05 | 宁夏恒承电力技术有限公司 | SO (SO)3Concentration testing method and device thereof |
-
2020
- 2020-02-13 CN CN202020173773.0U patent/CN212819150U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111239327A (en) * | 2020-02-25 | 2020-06-05 | 宁夏恒承电力技术有限公司 | SO (SO)3Concentration testing method and device thereof |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210330 |
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| CF01 | Termination of patent right due to non-payment of annual fee |