CN204678311U - Economizer bypath system - Google Patents
Economizer bypath system Download PDFInfo
- Publication number
- CN204678311U CN204678311U CN201520351810.1U CN201520351810U CN204678311U CN 204678311 U CN204678311 U CN 204678311U CN 201520351810 U CN201520351810 U CN 201520351810U CN 204678311 U CN204678311 U CN 204678311U
- Authority
- CN
- China
- Prior art keywords
- economizer
- flue
- denitrification apparatus
- bypass flue
- temperature
- Prior art date
- 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.)
- Expired - Fee Related
Links
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 abstract description 11
- 239000003546 flue gas Substances 0.000 abstract description 11
- 239000007789 gas Substances 0.000 abstract description 11
- 238000012544 monitoring process Methods 0.000 abstract description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 4
- 235000019504 cigarettes Nutrition 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 229910021529 ammonia Inorganic materials 0.000 description 2
- 238000010531 catalytic reduction reaction Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 230000005611 electricity Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Chimneys And Flues (AREA)
- Treating Waste Gases (AREA)
Abstract
The utility model discloses a kind of economizer bypath system, comprise economizer, bypass flue and denitrification apparatus, the A end of bypass flue is connected with the gas approach of economizer, the B end of bypass flue is connected with the exhaust pass of economizer, the exhaust pass of economizer is connected with denitrification apparatus, and bypass flue is provided with baffle board door of flue.The utility model, by arranging baffle board door of flue on bypass flue, can regulate the aperture of baffle board door of flue at any time, controls the high-temperature flue gas flow that bypass flue leads to denitrification apparatus.And bypass flue and denitrification apparatus are equipped with device for detecting temperature, and the temperature of monitoring bypass flue that can be real-time and denitrification apparatus, according to the aperture of the temperature adjusting baffle board door of flue that device for detecting temperature detects.
Description
Technical field
The utility model relates to economizer, particularly relates to a kind of economizer bypath system.
Background technology
Economizer (English name Economizer) is exactly the heating surface of saturation water boiler feedwater be heated in boiler back end ductwork under drum pressure, due to the heat of the low-temperature flue gas that it absorbs, reduce the exhaust gas temperature of flue gas, save the energy, improve efficiency, so be referred to as economizer.
When boiler controller system operates between 60% ~ 100%ECR load, there is the problem that underload economizer exit cigarette temperature is on the low side.Particularly under 60% load Gao Jiaquan cuts situation, economizer exit cigarette temperature only 290 DEG C, lower than the requirement of the minimum inlet flue gas temperature of denitrification apparatus 310 DEG C, according to denitration working control scheme, needs to stop spray ammonia, exits denitration and run.When environmental requirement is increasingly strict, exits denitration operation under underload and reduce denitration facility operational percentage, affect power plant and normally run and generate electricity.
For when ensureing that boiler at low load (60% load, Gao Jiaquan cut) runs, SCR (Selective Catalytic Reduction selective catalytic reduction denitration technology) denitrification apparatus can spray ammonia and put into operation, need to set up economizer gas bypass, high-temperature flue gas is caused SCR gas approach, reactor inlet cigarette temperature is made to mention 310 DEG C, to ensure that denitrification apparatus normally runs, improve denitrification apparatus operational percentage.But the too high or too low normal operation that all can affect denitrification apparatus of flue-gas temperature, based on this, after economizer arranges bypass flue, denitrification apparatus cisco unity malfunction becomes problem demanding prompt solution.
Utility model content
The purpose of this utility model is, a kind of economizer bypath system is provided, bypass flue can be regulated at any time to lead to the flue gas flow of denitrification apparatus, the temperature of flue gas is maintained within the scope of the normal working temperature of denitrification apparatus, thus denitrification apparatus is run normally.
For solving the problems of the technologies described above, the utility model adopts following technical scheme:
A kind of economizer bypath system, comprise economizer, bypass flue and denitrification apparatus, the A end of bypass flue is connected with the gas approach of economizer, the B end of bypass flue is connected with the exhaust pass of economizer, the exhaust pass of economizer is connected with denitrification apparatus, and bypass flue is provided with baffle board door of flue.
In aforesaid economizer bypath system, bypass flue is provided with the first device for detecting temperature.
In aforesaid economizer bypath system, denitrification apparatus is provided with the second device for detecting temperature.
In aforesaid economizer bypath system, the quantity of the second device for detecting temperature is greater than or equal to 4, and the second device for detecting temperature is evenly distributed on denitrification apparatus.
In aforesaid economizer bypath system, baffle board door of flue is adjustment type actuator.
Compared with prior art, the utility model, by arranging baffle board door of flue on bypass flue, can regulate the aperture of baffle board door of flue at any time, controls the high-temperature flue gas flow that bypass flue leads to denitrification apparatus.And bypass flue and denitrification apparatus are equipped with device for detecting temperature, and the temperature of monitoring bypass flue that can be real-time and denitrification apparatus, according to the aperture of the temperature adjusting baffle board door of flue that device for detecting temperature detects.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of embodiment of the present utility model.
Reference numeral: 1-gas approach, 2-A holds, 3-baffle board door of flue, 4-bypass flue, 5-denitrification apparatus, 6-second device for detecting temperature, and 7-B holds, 8-exhaust pass, 9-economizer, 10-first device for detecting temperature.
Below in conjunction with the drawings and specific embodiments, the utility model is further described.
Detailed description of the invention
Embodiment 1 of the present utility model: as shown in Figure 1, a kind of economizer bypath system, comprise economizer 9, bypass flue 4 and denitrification apparatus 5, the A end 2 of bypass flue 4 is connected with the gas approach 1 of economizer 9, the B end 7 of bypass flue 4 is connected with the exhaust pass 8 of economizer 9, the exhaust pass 8 of economizer 9 is connected with denitrification apparatus 5, and bypass flue 4 is provided with baffle board door of flue 3.
The quantity of the second device for detecting temperature 6 is greater than or equal to 4, and the second device for detecting temperature 6 is evenly distributed on denitrification apparatus 5.
Baffle board door of flue 3 is adjustment type actuators.
Embodiment 2: as shown in Figure 1, a kind of economizer bypath system, comprise economizer 9, bypass flue 4 and denitrification apparatus 5, the A end 2 of bypass flue 4 is connected with the gas approach 1 of economizer 9, the B end 7 of bypass flue 4 is connected with the exhaust pass 8 of economizer 9, the exhaust pass 8 of economizer 9 is connected with denitrification apparatus 5, and bypass flue 4 is provided with baffle board door of flue 3.
Bypass flue 4 is provided with the first device for detecting temperature 10.
The quantity of the second device for detecting temperature 6 is greater than or equal to 2, and the second device for detecting temperature 6 is evenly distributed on denitrification apparatus 5.
Baffle board door of flue 3 is adjustment type actuators.
Embodiment 3: as shown in Figure 1, a kind of economizer bypath system, comprise economizer 9, bypass flue 4 and denitrification apparatus 5, the A end 2 of bypass flue 4 is connected with the gas approach 1 of economizer 9, the B end 7 of bypass flue 4 is connected with the exhaust pass 8 of economizer 9, the exhaust pass 8 of economizer 9 is connected with denitrification apparatus 5, and bypass flue 4 is provided with baffle board door of flue 3.
Bypass flue 4 is provided with the first device for detecting temperature 10.
Denitrification apparatus 5 is provided with the second device for detecting temperature 6.
The quantity of the second device for detecting temperature 6 is greater than or equal to 4, and the second device for detecting temperature 6 is evenly distributed on denitrification apparatus 5.
Baffle board door of flue 3 is adjustment type actuators.
The operation principle of a kind of embodiment of the present utility model: the A end 2 of bypass flue 4 is connected with the gas approach 1 of economizer 9, the B end 7 of bypass flue 4 is connected with the exhaust pass 8 of economizer 9.Because the flue-gas temperature at gas approach 1 place of economizer 9 is higher, guide the flue gas of high temperature into denitrification apparatus 5 by bypass flue 4, temperature is maintained in temperature range that denitrification apparatus 5 can normally work.And, bypass flue 4 and denitrification apparatus 5 are equipped with device for detecting temperature, the aperture of baffle board door of flue 3 can be regulated according to the temperature value monitored, regulate the high heat smoke flow leading to denitrification apparatus 5 through bypass flue 4, thus ensure that denitrification apparatus 5 can normally run always.
Claims (5)
1. an economizer bypath system, it is characterized in that, comprise economizer (9), bypass flue (4) and denitrification apparatus (5), A end (2) of bypass flue (4) is connected with the gas approach (1) of economizer (9), B end (7) of bypass flue (4) is connected with the exhaust pass (8) of economizer (9), the exhaust pass (8) of economizer (9) is connected with denitrification apparatus (5), and bypass flue (4) is provided with baffle board door of flue (3).
2. economizer bypath system according to claim 1, is characterized in that, bypass flue (4) is provided with the first device for detecting temperature (10).
3. economizer bypath system according to claim 2, is characterized in that, denitrification apparatus (5) is provided with the second device for detecting temperature (6).
4. economizer bypath system according to claim 3, is characterized in that, the quantity of the second device for detecting temperature (6) is greater than or equal to 4, and the second device for detecting temperature (6) is evenly distributed on denitrification apparatus (5).
5. the economizer bypath system according to any one of claim 2 to 4, is characterized in that, baffle board door of flue (3) is adjustment type actuator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520351810.1U CN204678311U (en) | 2015-05-27 | 2015-05-27 | Economizer bypath system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520351810.1U CN204678311U (en) | 2015-05-27 | 2015-05-27 | Economizer bypath system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204678311U true CN204678311U (en) | 2015-09-30 |
Family
ID=54177999
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520351810.1U Expired - Fee Related CN204678311U (en) | 2015-05-27 | 2015-05-27 | Economizer bypath system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204678311U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106362590A (en) * | 2016-11-03 | 2017-02-01 | 广东电网有限责任公司电力科学研究院 | Flue gas system and method for raising fume temperature of inlet of SCR (Selective Catalytic Reduction) denitration device |
-
2015
- 2015-05-27 CN CN201520351810.1U patent/CN204678311U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106362590A (en) * | 2016-11-03 | 2017-02-01 | 广东电网有限责任公司电力科学研究院 | Flue gas system and method for raising fume temperature of inlet of SCR (Selective Catalytic Reduction) denitration device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 100160 Beijing, Fengtai District Automobile Museum Road, No. 6, Ying Kun century A block, floor 11 Patentee after: CHINA HUADIAN ENGINEERING Co.,Ltd. Patentee after: HUADIAN ENVIRONMENTAL PROTECTION ENGINEERING & TECHNOLOGY Co.,Ltd. Address before: 100160 Beijing, Fengtai District Automobile Museum Road, No. 6, Ying Kun century A block, floor 11 Patentee before: China Huadian Engineering (Group) Co.,Ltd. Patentee before: HUADIAN ENVIRONMENTAL PROTECTION ENGINEERING & TECHNOLOGY Co.,Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150930 |