CN213375902U - Denitration ammonia bypass efficiency improving device - Google Patents
Denitration ammonia bypass efficiency improving device Download PDFInfo
- Publication number
- CN213375902U CN213375902U CN202022078981.5U CN202022078981U CN213375902U CN 213375902 U CN213375902 U CN 213375902U CN 202022078981 U CN202022078981 U CN 202022078981U CN 213375902 U CN213375902 U CN 213375902U
- Authority
- CN
- China
- Prior art keywords
- fixedly connected
- control box
- motor
- threaded rod
- input pipe
- 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.)
- Withdrawn - After Issue
Links
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 title claims abstract description 74
- 229910021529 ammonia Inorganic materials 0.000 title claims abstract description 32
- 238000007789 sealing Methods 0.000 claims abstract description 23
- 230000000903 blocking effect Effects 0.000 claims abstract description 13
- 230000000149 penetrating effect Effects 0.000 claims description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 4
- 239000003546 flue gas Substances 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000002411 adverse Effects 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000192 social effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Images
Landscapes
- Treating Waste Gases (AREA)
- Chimneys And Flues (AREA)
Abstract
The utility model discloses a denitration ammonia bypass is carried and is imitated device, including intake pipe and work boiler, intake pipe terminal surface fixedly connected with control box, control box inside wall fixedly connected with guide rail pole, guide rail pole sliding connection has the jam case, the first motor of control box terminal surface fixedly connected with, first motor drive end runs through the control box, and the first threaded rod of first motor drive end fixedly connected with, first threaded rod rotates with the control box to be connected, first threaded rod and jam case threaded connection, the control box is kept away from the intake pipe side respectively fixedly connected with main input tube and second input tube, main input tube and second input tube all with work boiler lateral wall fixed connection. The utility model is provided with a blocking box, and the blocking box controls the closing of the airtight gasket and the ammonia pipe to prevent leakage; meanwhile, in order to improve the airtightness of the device, the ammonia pipe to be maintained passes through the sealing cover, and the use safety of the device is improved.
Description
Technical Field
The utility model relates to a boiler flue gas denitration environmental protection field especially relates to a denitration ammonia bypass is carried and is imitated device.
Background
In order to achieve the purpose of removing NOx from flue gas in a coal-fired power plant, the flue gas denitration is carried out by adopting an SCR method, and the chemical reaction equation is as follows:
4NO+4NH3+O2→4N2+6H2O
6NO2+8NH3→7N2+12H2O
the aim of denitration is achieved through the reaction of ammonia and NOx under the action of a catalyst. The denitration process system is mainly divided into two major subsystems: a flue gas SCR system and an ammonia storage and supply system. The tail area of the boiler steel framework is an SCR area, and the ammonia storage and supply system is an ammonia area. And the gas ammonia pipeline system connecting the SCR area and the ammonia area is arranged on the comprehensive pipe frame of the plant area. In the using process, after the gas ammonia pipeline is found to run for a long time, impurities are easily accumulated in the low concave part to form blockage. Once the pipeline is blocked, the ammonia gas cannot be supplied to the front of the furnace, and the denitration reaction cannot be carried out, so that the environmental protection parameters exceed the standard, the environment is polluted, the adverse social effect is caused, and the image of the power plant is adversely affected.
Therefore, how to improve the ammonia gas conveying pipeline and improve the reliability of the ammonia gas conveying pipeline so as not to influence the ammonia supply in front of the furnace and avoid the overproof environmental protection parameters becomes the research target of people. Therefore, a denitration ammonia bypass efficiency improving device is provided.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the defects existing in the prior art and providing a denitration ammonia bypass effect-improving device.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a denitration ammonia bypass efficiency improving device comprises an air inlet pipe and a working boiler, wherein a control box is fixedly connected to the end face of the air inlet pipe, a guide rail rod is fixedly connected to the inner side wall of the control box, the guide rail rod is connected with a blocking box in a sliding mode, a first motor is fixedly connected to the end face of the control box, the driving end of the first motor penetrates through the control box, a first threaded rod is fixedly connected to the driving end of the first motor, the first threaded rod is rotatably connected with the control box, the first threaded rod is in threaded connection with the blocking box, a main input pipe and a second input pipe are respectively and fixedly connected to the sides, away from the air inlet pipe, of the control box, the main input pipe and the second input pipe are both fixedly connected with the side wall of the working boiler, and sealing devices are arranged on;
the utility model discloses a jam incasement portion, including jam incasement portion, second motor drive end fixedly connected with second threaded rod, second threaded rod threaded connection has the threaded sleeve, threaded sleeve terminal surface fixedly connected with push pedal, the threaded sleeve lateral wall is close to second motor fixedly connected with stopper, stopper and jam incasement inside wall sliding connection.
As a further description of the above technical solution:
the lateral wall of the air inlet pipe is fixedly connected with a pressure gauge in a penetrating way.
As a further description of the above technical solution:
the first threaded rod and the guide rail rod are arranged in parallel.
As a further description of the above technical solution:
and the main input pipe and the second input pipe are fixedly connected with the working boiler and the control box through flanges on the end surfaces.
As a further description of the above technical solution:
the sealing device comprises a sealing cover, and a sealing ring is fixedly connected to the end face of the sealing cover.
As a further description of the above technical solution:
the push pedal is kept away from second motor side fixedly connected with airtight gasket, and airtight gasket is the rubber setting.
The utility model discloses following beneficial effect has:
1. the utility model discloses a setting increases the ammonia bypass, and system reliability improves by a wide margin, when an ammonia pipeline breaks down, can replace for bypass ammonia pipe, reduces to 0% by 100% to boiler denitration's influence rate, has promoted the security in the boiler use.
2. The utility model provides a denitration ammonia bypass effect-improving device, which is provided with a blocking box, wherein the blocking box controls the closing of a sealing gasket and an ammonia pipe to prevent leakage; meanwhile, in order to improve the airtightness of the device, the ammonia pipe to be maintained passes through the sealing cover, and the use safety of the device is improved.
Drawings
Fig. 1 is a top view of a denitration ammonia bypass effect-enhancing device provided by the utility model;
FIG. 2 is a schematic structural view of a blocking box of the denitration ammonia bypass effect-improving device provided by the utility model;
figure 3 is the utility model provides a denitration ammonia bypass is carried and is imitated structure schematic diagram of the sealed lid of device.
Illustration of the drawings:
1. an air inlet pipe; 11. a pressure gauge; 12. a main input pipe; 13. a second input pipe; 14. a working boiler; 2. a control box; 21. a first motor; 22. a guide rail rod; 23. a choke tank; 24. a first threaded rod; 3. a second motor; 31. a second threaded rod; 32. a threaded sleeve; 33. pushing the plate; 34. sealing the gasket; 35. a limiting block; 4. a sealing cover; 41. and (4) a sealing ring.
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 should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", 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 simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1-3, the present invention provides an embodiment:
a denitration ammonia bypass efficiency improving device comprises an air inlet pipe 1 and a working boiler 14, wherein the end face of the air inlet pipe 1 is fixedly connected with a control box 2, the inner side wall of the control box 2 is fixedly connected with a guide rail rod 22, the guide rail rod 22 is connected with a blocking box 23 in a sliding manner, the end face of the control box 2 is fixedly connected with a first motor 21, the driving end of the first motor 21 penetrates through the control box 2, the driving end of the first motor 21 is fixedly connected with a first threaded rod 24, the first threaded rod 24 is rotatably connected with the control box 2, the first threaded rod 24 is in threaded connection with the blocking box 23, the side of the control box 2, which is far away from the air inlet pipe 1, is respectively and fixedly connected with a main input pipe 12 and a second input pipe 13, the main input pipe 12 and the second input pipe 13 are both fixedly connected with the side wall of the working boiler 14, a sealing device is matched with the main input pipe 12 and the second input pipe 13, when the main input pipe 12 is blocked or cannot be used, the first motor 21 is started, the blocking box 23 is driven to slide along the guide rail rod 22 through the first threaded rod 24, so that the main input pipe 12 is blocked, and the second input pipe 13 is opened (in a state shown in fig. 1), and at the moment, the second input pipe 13 performs an ammonia gas supply task;
block the inside lateral wall fixedly connected with second motor 3 of case 23, second motor 3 drive end fixedly connected with second threaded rod 31, second threaded rod 31 threaded connection has threaded sleeve 32, threaded sleeve 32 terminal surface fixedly connected with push pedal 33, the threaded sleeve 32 lateral wall is close to second motor 3 fixedly connected with stopper 35, stopper 35 and 23 inside wall sliding connection of case block, necessary when locking main input tube 12, start second motor 3, drive second threaded rod 31 and rotate, thereby make threaded sleeve 32 promote push pedal 33 and block up main input tube 12, the seal of jam has been promoted.
The fixed through connection of intake pipe 1 lateral wall has manometer 11, measures the pressure of intake pipe 1, if pressure great then main input tube 12 probably blocks up, considers to change second input tube 13 and carries out work.
The first threaded rod 24 is arranged in parallel with the guide rail rod 22, and the position relation between the first threaded rod 24 and the guide rail rod 22 is determined.
The main inlet pipe 12 and the second inlet pipe 13 are fixedly connected with the working boiler 14 and the control box 2 through flanges on the end surfaces.
The sealing device comprises a sealing cover 4, the end face of the sealing cover 4 is fixedly connected with a sealing ring 41, the sealing cover 4 is arranged in a matched mode, when the main input pipe 12 is detached, the sealing cover 4 can be respectively installed on the working boiler 14 and the control box 2, and normal operation of the device is guaranteed during maintenance of the main input pipe 12.
The push plate 33 is far away from the second motor 3 side and is fixedly connected with a closed gasket 34, and the closed gasket 34 is arranged in a rubber mode, so that the closed effect of the device is improved.
The working principle is as follows:
when the working boiler works, ammonia enters the control box 2 through the air inlet pipe 1 and enters the working boiler 14 along the main input pipe 12, if the pressure of the pressure gauge 11 is higher, the main input pipe 12 is possibly blocked, and the second input pipe 13 is considered to be replaced for working; when the main input pipe 12 is blocked or cannot be used, the first motor 21 is started, the blocking box 23 is driven to slide along the guide rail rod 22 through the first threaded rod 24, so that the main input pipe 12 is blocked, and the second input pipe 13 is opened (in a state shown in fig. 1), and at the moment, the second input pipe 13 performs an ammonia gas supply task; when simultaneously to main input tube 12 locks, start second motor 3, drive second threaded rod 31 and rotate to make threaded sleeve 32 promote push pedal 33 and block up main input tube 12, promoted the seal of jam, when dismantling main input tube 12, can install sealed lid 4 respectively at work boiler 14 and control box 2 play, ensure main input tube 12 and maintain the period device normal operating, the utility model discloses a setting increases the ammonia bypass, and system reliability improves by a wide margin, when an ammonia pipeline breaks down, can replace for bypass ammonia pipe, reduces to 0% by 100% to the influence rate to boiler denitration, has promoted the security in the boiler use. Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.
Claims (6)
1. The utility model provides a denitration ammonia bypass is carried and is imitated device, includes intake pipe (1) and work boiler (14), its characterized in that: the end surface of the air inlet pipe (1) is fixedly connected with a control box (2), the inner side wall of the control box (2) is fixedly connected with a guide rail rod (22), the guide rail rod (22) is connected with a blocking box (23) in a sliding way, the end surface of the control box (2) is fixedly connected with a first motor (21), the driving end of the first motor (21) penetrates through the control box (2), and a first threaded rod (24) is fixedly connected with the driving end of the first motor (21), the first threaded rod (24) is rotationally connected with the control box (2), the first threaded rod (24) is in threaded connection with the blocking box (23), the side of the control box (2) far away from the air inlet pipe (1) is respectively and fixedly connected with a main input pipe (12) and a second input pipe (13), the main input pipe (12) and the second input pipe (13) are both fixedly connected with the side wall of the working boiler (14), the main input pipe (12) and the second input pipe (13) are provided with sealing devices in a matching way;
block inside lateral wall fixedly connected with second motor (3) of case (23), second motor (3) drive end fixedly connected with second threaded rod (31), second threaded rod (31) threaded connection has threaded sleeve (32), threaded sleeve (32) terminal surface fixedly connected with push pedal (33), threaded sleeve (32) lateral wall is close to second motor (3) fixedly connected with stopper (35), stopper (35) and block case (23) inside wall sliding connection.
2. The denitration ammonia gas bypass efficiency improving device as claimed in claim 1, characterized in that: the side wall of the air inlet pipe (1) is fixedly connected with a pressure gauge (11) in a penetrating mode.
3. The denitration ammonia gas bypass efficiency improving device as claimed in claim 1, characterized in that: the first threaded rod (24) and the guide rail rod (22) are arranged in parallel.
4. The denitration ammonia gas bypass efficiency improving device as claimed in claim 1, characterized in that: the main input pipe (12) and the second input pipe (13) are fixedly connected with the working boiler (14) and the control box (2) through flanges on the end surfaces.
5. The denitration ammonia gas bypass efficiency improving device as claimed in claim 1, characterized in that: the sealing device comprises a sealing cover (4), and a sealing ring (41) is fixedly connected to the end face of the sealing cover (4).
6. The denitration ammonia gas bypass efficiency improving device as claimed in claim 1, characterized in that: the push plate (33) is far away from the second motor (3) and is fixedly connected with a closed gasket (34), and the closed gasket (34) is arranged in a rubber mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022078981.5U CN213375902U (en) | 2020-09-21 | 2020-09-21 | Denitration ammonia bypass efficiency improving device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022078981.5U CN213375902U (en) | 2020-09-21 | 2020-09-21 | Denitration ammonia bypass efficiency improving device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213375902U true CN213375902U (en) | 2021-06-08 |
Family
ID=76180804
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022078981.5U Withdrawn - After Issue CN213375902U (en) | 2020-09-21 | 2020-09-21 | Denitration ammonia bypass efficiency improving device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213375902U (en) |
-
2020
- 2020-09-21 CN CN202022078981.5U patent/CN213375902U/en not_active Withdrawn - After Issue
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20210608 Effective date of abandoning: 20231205 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20210608 Effective date of abandoning: 20231205 |