CN218033201U - Power station smoke and air pipeline - Google Patents
Power station smoke and air pipeline Download PDFInfo
- Publication number
- CN218033201U CN218033201U CN202220808358.7U CN202220808358U CN218033201U CN 218033201 U CN218033201 U CN 218033201U CN 202220808358 U CN202220808358 U CN 202220808358U CN 218033201 U CN218033201 U CN 218033201U
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- Prior art keywords
- connecting piece
- pipeline
- guide plate
- flow guide
- fan
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- Expired - Fee Related
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- 239000000779 smoke Substances 0.000 title claims abstract description 10
- 230000008878 coupling Effects 0.000 claims abstract description 9
- 238000010168 coupling process Methods 0.000 claims abstract description 9
- 238000005859 coupling reaction Methods 0.000 claims abstract description 9
- 230000000712 assembly Effects 0.000 claims description 4
- 238000000429 assembly Methods 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims 1
- 239000002994 raw material Substances 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 3
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 43
- 239000003546 flue gas Substances 0.000 description 43
- 235000019504 cigarettes Nutrition 0.000 description 11
- 238000006477 desulfuration reaction Methods 0.000 description 5
- 230000023556 desulfurization Effects 0.000 description 5
- 238000002485 combustion reaction Methods 0.000 description 4
- 230000001939 inductive effect Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
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Abstract
The utility model discloses a power station smoke and air pipeline, which comprises a circulating component, a pipeline component, a connecting component and a flow guide component; the circulating assembly comprises a booster fan and an induced draft fan, the pipeline assembly comprises a booster pipeline and an induced draft pipeline, the connecting assembly comprises a first connecting piece, a second connecting piece, a third connecting piece and a three-way connecting piece, and the guide assembly comprises a first guide plate, a second guide plate, a third guide plate and a fourth guide plate; the utility model discloses a cooperation between circulation subassembly, pipeline subassembly, coupling assembling and the water conservancy diversion subassembly can reduce pipeline internal resistance, make pipeline air current distribution more even.
Description
Technical Field
The utility model relates to the technical field of pipelines, especially a power station cigarette wind pipeline.
Background
With the environmental protection improvement stage of the thermal power generation industry in China approaching to the end sound, deep energy saving becomes one of the future development keys of the thermal power plant. In a subsystem of a thermal power plant, a powder preparation system, a combustion system and a flue gas emission system have a large number of flue gas and pulverized coal pipelines, and the pipelines bear the functions of medium transportation and flue gas emission among equipment on one hand and need to ensure the reasonability of an inlet flow field and an outlet flow field of the equipment on the other hand. In a flue gas air system of a thermal power plant, two induced draft fans and one booster fan are conventionally arranged, and a typical flue arrangement structure exists between the induced draft fans and the booster fan. Through a large amount of engineering modification and numerical calculation experience, the flue flow field has a large optimization space.
SUMMERY OF THE UTILITY MODEL
This section is for the purpose of summarizing some aspects of embodiments of the invention and to briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section as well as in the abstract and the title of the present application to avoid obscuring the purpose of this section, the abstract and the title of the present application, and such simplifications or omissions cannot be used to limit the scope of the present invention.
The present invention has been made in view of the above and/or problems that exist in existing power station flue gas and air ducts.
Therefore, the utility model aims to solve the problem that the internal resistance of the flue gas and air pipeline of the power station is large and uneven in air flow distribution.
In order to solve the technical problem, the utility model provides a following technical scheme: a power station smoke and wind pipeline comprises a pipeline assembly, a connecting assembly, a flow guide assembly and a circulating assembly.
As a preferred scheme of power station cigarette wind pipeline, wherein: the pipeline assembly comprises a pressurizing pipeline and an air inducing pipeline, wherein the pressurizing pipeline is arranged on one side of the air inducing pipeline, and the number of the air inducing pipelines is two;
the connecting assembly is arranged among the pipeline assemblies and comprises a first connecting piece, a second connecting piece, a third connecting piece and a three-way connecting piece, the pressurizing pipeline penetrates through the first connecting piece, the second connecting piece and the air guide pipeline penetrate through the third connecting piece, and the three-way connecting piece is connected with the pressurizing pipeline and the air guide pipeline;
the flow guide assembly is arranged inside the connecting assembly and comprises a first flow guide plate and a second flow guide plate, the first flow guide plate is arranged inside the first connecting piece, and the second flow guide plate is arranged inside the three-way connecting piece; and the number of the first and second groups,
and the circulating assembly comprises a booster fan and an induced draft fan, the booster fan is arranged at one end of the booster pipeline, and the induced draft fan is arranged at one end of the induced draft pipeline.
As a preferred scheme of power station cigarette wind pipeline, wherein: the draught fan has two, parallel arrangement in pipeline subassembly one end.
As a preferred scheme of power station cigarette wind pipeline, wherein: coupling assembling still includes the booster fan connecting piece, booster fan connecting piece one end opening is the rectangle, with booster pipe end-to-end connection, booster fan connecting piece side opening is circular, with booster fan end-to-end connection.
As a preferred scheme of power station cigarette wind pipeline, wherein: coupling assembling still includes the draught fan connecting piece, draught fan connecting piece one end opening is the rectangle, with induced duct end-to-end connection, draught fan connecting piece other end opening is circular, with draught fan end-to-end connection, the draught fan connecting piece has two.
As a power station cigarette wind pipeline's an preferred scheme, wherein: the pressurization pipeline is provided with a right-angled bend, and the middle right-angled bend is connected by the first connecting piece.
As a preferred scheme of power station cigarette wind pipeline, wherein: the air guide pipeline is provided with two right-angle bends, and the middle right-angle bend is connected with the third connecting piece through the second connecting piece.
As a preferred scheme of power station cigarette wind pipeline, wherein: the three-way connecting piece is connected with the supercharging pipeline and the induced draft pipeline, two opposite openings of the three-way connecting piece are connected with the induced draft pipeline, and an opening on the side surface of the three-way connecting piece is connected with the supercharging pipeline.
As a preferred scheme of power station cigarette wind pipeline, wherein: the flow guide assembly further comprises a third flow guide plate, and the third flow guide plate is arranged inside the second connecting piece.
As a power station cigarette wind pipeline's an preferred scheme, wherein: the flow guide assembly further comprises a fourth flow guide plate, and the fourth flow guide plate is arranged inside the third connecting piece.
As a power station cigarette wind pipeline's an preferred scheme, wherein: the third baffle and the fourth baffle are two pieces each.
The utility model discloses beneficial effect does: the utility model discloses a cooperation between circulation subassembly, pipeline subassembly, coupling assembling and the water conservancy diversion subassembly can reduce pipeline internal resistance, make pipeline air current distribution more even.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without inventive labor. Wherein:
fig. 1 is a structural view of a station flue gas duct.
FIG. 2 is a side view of a plant flue duct.
FIG. 3 is a top view of a station flue duct.
Fig. 4 is a first deflector structure view of the flue duct of the power station.
Fig. 5 is a second baffle structure view of the flue duct of the power station.
Fig. 6 is a third baffle structure diagram of the flue gas duct of the power station.
Fig. 7 is a fourth baffle structure view of the flue duct of the power station.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail with reference to the accompanying drawings.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be implemented in other ways different from the specific details set forth herein, and one skilled in the art may similarly generalize the present invention without departing from the spirit of the present invention, and therefore the present invention is not limited to the specific embodiments disclosed below.
Furthermore, the references herein to "one embodiment" or "an embodiment" refer to a particular feature, structure, or characteristic that may be included in at least one implementation of the invention. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments.
Example 1
Referring to fig. 1 and 2, in order to provide a first embodiment of the present invention, the embodiment provides a flue duct of a power station, which includes a duct assembly 200, a connection assembly 300, a flow guide assembly 400, and a circulation assembly 500.
Specifically, the circulation assembly 500 includes a booster fan 501 and an induced draft fan 502, the booster fan 501 overcomes the resistance of the flue gas flowing in the whole desulfurization system, and is generally arranged behind the induced draft fan 502, the induced draft fan 502 discharges the high-temperature flue gas generated by the combustion of the boiler, the negative pressure of the furnace chamber is maintained, the flowing flue gas is formed, the heat exchange between the flue gas and the air is completed, and the circulation assembly 500 provides power for the flue gas.
Specifically, the duct assembly 200 is arranged on one side of a booster fan 501 and an induced draft fan 502, and comprises a booster duct 201 and an induced draft duct 202, wherein the booster duct 201 is arranged on one side of the booster fan 501, the induced draft duct 202 is arranged on one side of the induced draft fan 502, the induced draft duct 202 comprises two ducts, and the duct assembly 200 limits the smoke circulation range;
specifically, the connecting assembly 300 is disposed between the duct assemblies 200, and includes a first connecting member 301, a second connecting member 302, a third connecting member 303, and a three-way connecting member 304, and the connecting assembly 300 changes the direction of the duct assemblies 200, so as to change the flow direction of the smoke.
Specifically, the flow guide assembly 400 is disposed inside the connection assembly 300, and includes a first guide plate 401, a second guide plate 402, a third guide plate 403, and a fourth guide plate 404, and the flow guide assembly 400 reduces internal resistance of the pipeline, so that the distribution of flue gas flow inside the pipeline is more uniform.
When using, the draught fan 502 of circulation subassembly 500 discharges the high temperature flue gas that the boiler burning produced, maintain the furnace negative pressure, form flowing flue gas, accomplish the heat exchange of flue gas and air, booster fan 501 overcomes the resistance that flue gas flows among the whole desulfurization system, pipeline subassembly 200 restricts the flue gas circulation scope, coupling assembling 300 changes pipeline subassembly 200's direction, thereby change the flue gas flow direction, water conservancy diversion subassembly 400 reduces the pipeline internal resistance, make the inside flue gas air current distribution of pipeline more even.
Example 2
Referring to fig. 1 to 7, this embodiment is based on the previous embodiment, which is a second embodiment of the present invention.
Specifically, the induced draft fan 502 has two pieces, and is disposed in parallel at one end of the pipe assembly 200, specifically at the end of the induced draft pipe 202.
Specifically, coupling assembling 300 still includes booster fan connecting piece 305, and booster fan connecting piece 305 one end opening is the rectangle, with booster pipe 201 end connection, and booster fan connecting piece 305 side opening is circular, with booster fan 501 end connection, and booster fan connecting piece 305 connects booster fan 501 and booster pipe 201.
Specifically, coupling assembling 300 still includes draught fan connecting piece 306, and draught fan connecting piece 306 one end opening is the rectangle, with induced draft pipeline 202 end connection, and draught fan connecting piece 306 other end opening is circular, with draught fan 502 end connection, and draught fan connecting piece 306 has two, and draught fan connecting piece 306 connects induced draft pipeline 202 and draught fan 502.
Specifically, the booster pipe 201 has a quarter bend, the middle quarter bend is connected by the first connecting piece 301, the first connecting piece 301 is a 90-degree elbow, and the inner diameter is larger than the outer diameter of the booster pipe 201.
Specifically, the induced draft pipeline 202 has two right-angled bends, the middle right-angled bend is connected by a second connecting piece 302 and a third connecting piece 303, the second connecting piece 302 and the third connecting piece 303 are also 90-degree elbows, and the inner diameter is larger than the outer diameter of the induced draft pipeline 202.
When in use, the induced draft fan 502 of the circulating assembly 500 discharges high-temperature flue gas generated by boiler combustion, maintain the negative pressure of the furnace, form flowing flue gas, complete the heat exchange of flue gas and air, the booster fan 501 overcomes the resistance of flue gas flow in the whole desulfurization system, the pipe assembly 200 limits the flue gas circulation range, the connecting assembly 300 changes the direction of the pipe assembly 200, thereby changing the flue gas flow direction, the booster fan connecting piece 305 connects the booster fan 501 and the booster pipeline 201, the induced draft pipe 202 and the induced draft fan 502 are connected by the induced draft fan connecting piece 306, the first connecting piece 301 is a 90-degree elbow, the inner diameter is larger than the outer diameter of the booster pipeline 201, the second connecting piece 302 and the third connecting piece 303 are also 90-degree elbows, the inner diameter is larger than the outer diameter of the induced draft pipeline 202, the flow guide assembly 400 reduces the internal resistance of the pipeline, and makes the internal flue gas flow distribution of the pipeline more uniform.
Example 3
Referring to fig. 1 to 7, a third embodiment of the present invention is based on the first two embodiments.
Specifically, the three-way connecting piece 304 is connected with the pressurization pipeline 201 and the air guide pipeline 202, two opposite openings of the three-way connecting piece 304 are connected with the air guide pipeline 202, the openings on the side surfaces of the three-way connecting piece 304 are connected with the pressurization pipeline 201, the two air guide pipelines 202 introduce smoke into the three-way connecting piece 304, and the openings on the side surfaces of the three-way connecting piece 304 introduce the smoke into the pressurization pipeline 201.
Specifically, the first baffle 401 is disposed inside the first connecting member 301, the second baffle 402 is disposed inside the three-way connecting member 304, the third baffle 403 is disposed inside the second connecting member 302, the fourth baffle 404 is disposed inside the third connecting member 303, and the shapes of the first baffle 401 and the fourth baffle 404 depend on the lengths of the front and rear straight pipe sections of the elbow, so as toThe moving direction of the smoke is the positive direction, the length of the straight pipe section on two sides of the elbow firstly meeting the smoke is L 1 The length of the straight pipe section on the other side of the elbow is L 2 The equivalent diameter of the section of the pipeline is K;
when L is 1 And L 2 When K is more than or equal to 3 times, the straight pipe section has sufficient rectification function, and the guide plate is in a single arc plate type;
when L is 1 Greater than or equal to 3 times K, L 2 When K is less than 3 times, adopting a circular arc plate and straight plate type;
when L is 1 Less than 3 times K, L 2 When K is more than or equal to 3 times, a straight plate and an arc plate are adopted;
length L of front and rear straight pipe sections of elbow 1 And L 2 When the diameter is less than 3 times of the equivalent diameter of the pipeline section, a straight plate, an arc plate and a straight plate type are adopted;
wherein, the radius of the arc guide plate is the average value of the radius of the inner fillet and the radius of the outer fillet of the elbow, and the number of the guide plates is 3-5; the second guide plate 402 is formed by splicing two groups of arc-shaped guide plates, so that the flue gas is prevented from colliding, the speed is reduced, and the consumption is increased; because the cross-section of the two pipes connected by the second connector 302 changes, the third baffle 403 is not a simple arc shape, the third baffle 403 has two sides, the outer side is a straight plate + an arc + a straight plate, and the inner side is an arc + a straight plate + an arc.
When the boiler flue gas desulfurization system is used, a draught fan 502 of a circulating assembly 500 discharges high-temperature flue gas generated by boiler combustion, negative pressure of a hearth is maintained, flowing flue gas is formed, heat exchange of the flue gas and air is completed, a booster fan 501 overcomes resistance of flue gas flowing in the whole desulfurization system, a pipeline assembly 200 limits the flow range of the flue gas, a connecting assembly 300 changes the direction of the pipeline assembly 200 and changes the flow direction of the flue gas, two draught pipelines 202 introduce the flue gas into a three-way connecting piece 304, the side opening of the three-way connecting piece 304 introduces the flue gas into a booster pipeline 201, the booster fan connecting piece 305 is connected with the booster fan 501 and the booster pipeline 201, an induced draft pipeline 202 and an induced draft fan 502 are connected by an induced draft pipeline 306, the first connecting piece 301 is a 90-degree elbow, the inner diameter is larger than the outer diameter of the booster pipeline 201, the second connecting piece 302 and the third connecting piece 303 are also 90-degree elbows, and the inner diameter is larger than the outer diameter of the draught pipeline 202;
the flow guide assembly 400 reduces the internal resistance of the pipeline and enables the flue gas flow distribution in the pipeline to be more uniform, the shapes of the first flow guide plate 401 and the fourth flow guide plate 404 depend on the lengths of front and rear straight pipe sections of the elbow, the movement direction of flue gas is taken as the positive direction, the length of the straight pipe section of the two sides of the elbow, which meets the flue gas first, is L 1 The length of the straight pipe section on the other side of the elbow is L 2 The equivalent diameter of the section of the pipeline is K;
when L is 1 And L 2 When K is more than or equal to 3 times, the straight pipe section has sufficient rectification function, and the guide plate is in a single arc plate type;
when L is 1 Greater than or equal to 3 times K, L 2 When K is less than 3 times, adopting a circular arc plate and straight plate type;
when L is 1 Less than 3 times of K, L 2 When K is more than or equal to 3 times, a straight plate and arc plate type is adopted;
length L of front and rear straight pipe sections of elbow 1 And L 2 When the diameter is less than 3 times of the equivalent diameter of the pipeline section, a straight plate, an arc plate and a straight plate type are adopted;
wherein, the radius of the arc guide plate is the average value of the radius of the inner fillet and the radius of the outer fillet of the elbow, and the number of the guide plates is 3-5;
the second guide plate 402 is formed by splicing two groups of arc-shaped guide plates, so that the flue gas is prevented from colliding, the speed is reduced, and the consumption is increased;
the third baffle 403 is not a simple arc shape, the third baffle 403 has two sides, the outer side is a straight plate + an arc + a straight plate, and the inner side is an arc + a straight plate + an arc.
It should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting, and although the present invention is described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention can be modified or substituted by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the scope of the claims of the present invention.
Claims (10)
1. A kind of power station smoke wind pipeline, characterized by that: comprises the steps of (a) preparing a mixture of a plurality of raw materials,
the pipeline assembly (200) comprises a pressurization pipeline (201) and an air guide pipeline (202), wherein the pressurization pipeline (201) is arranged on one side of the air guide pipeline (202), and the number of the air guide pipelines (202) is two;
the connecting assembly (300) is arranged between the pipeline assemblies (200) and comprises a first connecting piece (301), a second connecting piece (302), a third connecting piece (303) and a three-way connecting piece (304), the pressurization pipeline (201) penetrates through the first connecting piece (301), the second connecting piece (302) and the air guide pipeline (202) penetrate through the third connecting piece (303), and the three-way connecting piece (304) is connected with the pressurization pipeline (201) and the air guide pipeline (202);
the flow guide assembly (400) is arranged inside the connecting assembly (300) and comprises a first flow guide plate (401) and a second flow guide plate (402), the first flow guide plate (401) is arranged inside the first connecting piece (301), and the second flow guide plate (402) is arranged inside the three-way connecting piece (304); and (c) a second step of,
circulation subassembly (500), including booster fan (501) and draught fan (502), booster fan (501) set up in booster duct (201) one end, draught fan (502) set up in draught duct (202) one end.
2. A plant flue duct according to claim 1, characterized in that: the draught fan (502) is provided with two draught fans which are arranged at one end of the pipeline assembly (200) in parallel.
3. A plant flue duct according to claim 2, characterized in that: coupling assembling (300) still include booster fan connecting piece (305), booster fan connecting piece (305) one end opening is the rectangle, with booster pipe (201) end-to-end connection, booster fan connecting piece (305) side opening is circular, with booster fan (501) end-to-end connection.
4. A plant flue duct according to claim 3, characterized in that: coupling assembling (300) still includes draught fan connecting piece (306), draught fan connecting piece (306) one end opening is the rectangle, with induced draft pipeline (202) end-to-end connection, draught fan connecting piece (306) other end opening is circular, with draught fan (502) end-to-end connection, draught fan connecting piece (306) have two.
5. A plant flue duct according to claim 4, characterized in that: the pressurization pipeline (201) is provided with a right-angle bend, and the middle right-angle bend is connected by the first connecting piece (301).
6. A plant flue duct according to claim 3 or 5, characterized in that: the air guide duct (202) has two right-angled bends, the middle right-angled bend being connected by the second connector (302) and the third connector (303).
7. A plant flue duct according to claim 6, characterized in that: the three-way connecting piece (304) is connected with the pressurization pipeline (201) and the air guide pipeline (202), two opposite openings of the three-way connecting piece (304) are connected with the air guide pipeline (202), and the side opening of the three-way connecting piece (304) is connected with the pressurization pipeline (201).
8. A plant flue duct according to claim 5 or 7, characterized in that: the flow guide assembly (400) further comprises a third flow guide plate (403), and the third flow guide plate (403) is arranged inside the second connecting piece (302).
9. A plant flue duct according to claim 8, characterized in that: the flow guide assembly (400) further comprises a fourth flow guide plate (404), and the fourth flow guide plate (404) is arranged inside the third connecting piece (303).
10. A plant flue duct according to claim 9, characterized in that: the third baffle (403) and the fourth baffle (404) are each two pieces.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220808358.7U CN218033201U (en) | 2022-04-08 | 2022-04-08 | Power station smoke and air pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220808358.7U CN218033201U (en) | 2022-04-08 | 2022-04-08 | Power station smoke and air pipeline |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218033201U true CN218033201U (en) | 2022-12-13 |
Family
ID=84372319
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220808358.7U Expired - Fee Related CN218033201U (en) | 2022-04-08 | 2022-04-08 | Power station smoke and air pipeline |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218033201U (en) |
-
2022
- 2022-04-08 CN CN202220808358.7U patent/CN218033201U/en not_active Expired - Fee Related
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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: 20221213 |
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| CF01 | Termination of patent right due to non-payment of annual fee |