CN109028120B - Flue gas guide plate restraint device - Google Patents
Flue gas guide plate restraint device Download PDFInfo
- Publication number
- CN109028120B CN109028120B CN201811114043.7A CN201811114043A CN109028120B CN 109028120 B CN109028120 B CN 109028120B CN 201811114043 A CN201811114043 A CN 201811114043A CN 109028120 B CN109028120 B CN 109028120B
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- China
- Prior art keywords
- guide plate
- flue
- bolt
- plate
- support plate
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- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims abstract description 44
- 239000003546 flue gas Substances 0.000 title claims abstract description 44
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 40
- 239000000779 smoke Substances 0.000 claims abstract description 27
- 230000000452 restraining effect Effects 0.000 claims abstract description 13
- 229910000831 Steel Inorganic materials 0.000 claims description 17
- 239000010959 steel Substances 0.000 claims description 17
- 239000000463 material Substances 0.000 claims description 11
- 230000035939 shock Effects 0.000 claims description 6
- 239000000919 ceramic Substances 0.000 claims description 5
- 239000000835 fiber Substances 0.000 claims description 5
- 238000001816 cooling Methods 0.000 claims 2
- 230000000694 effects Effects 0.000 abstract description 9
- 238000000034 method Methods 0.000 abstract description 3
- 238000002485 combustion reaction Methods 0.000 description 5
- 238000013016 damping Methods 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 230000002035 prolonged effect Effects 0.000 description 3
- 230000002411 adverse Effects 0.000 description 2
- 239000002918 waste heat Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000009827 uniform distribution Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J13/00—Fittings for chimneys or flues
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Incineration Of Waste (AREA)
Abstract
The invention discloses a smoke guide plate restraining device, and relates to the field of boiler equipment. In order to solve the problem that the prior constraint device between the guide plate and the flue pipe wall is easy to fail, the guide plate cannot be fixed in the flue gas operation process, and the guide effect cannot be normally exerted. The smoke guide plate restraining device comprises a guide plate support plate, a reinforcing rib plate and a fastener, wherein one end of the guide plate support plate is fixedly arranged at the side edge of the smoke guide plate through the fastener, and the other end of the guide plate support plate is fixedly arranged on the inner wall of the side wall of the flue; the reinforced rib plates are fixedly connected with the guide plate support plates and the inner wall of the side wall of the flue respectively. The invention is used for restraining the deflector of the boiler inlet flue.
Description
Technical Field
The invention relates to the field of boiler equipment, in particular to a deflector restraint device used for a boiler inlet flue.
Background
With the recent improvement of environmental protection requirements and the rapid development of internal combustion engines, the combined cycle power station consisting of the internal combustion engine and the boiler is rapidly developed. In these combined cycle power stations, the high temperature flue gas exhausted after the internal combustion engine works is typically exhausted into the boiler through the high temperature boiler inlet flue to continue to do work.
The inlet flue of the waste heat boiler is the only channel for connecting the exhaust flue of the internal combustion engine and the heating surface body of the waste heat boiler, the inlet flue receives the spiral tail gas discharged by the internal combustion engine to expand and reduce the pressure so that the smoke forms turbulent state medium and enters the heating surface of the boiler to exchange heat. In order to consider the uniformity of the flue gas flow field, a flue gas guide plate is required to be arranged in an inlet flue with a short length and a large pitching angle, so that the flue gas in the flue is ensured to have good fullness and small thermal deviation impact on a heating surface, and the heat exchange efficiency is further improved.
The flue gas flow velocity at the position of the guide plate is fast, the fluctuation is large, the guide plate is extremely easy to damage after long-time operation, and the damage of the guide plate restraining device is a main cause of the guide plate damage. The restraint device between the guide plate and the flue pipe wall is invalid, so that the guide plate cannot be kept fixed in the flue gas operation process, the guide plate cannot normally play a guide role along with the duration of the flue gas operation time, the flue gas can influence the uniform distribution of heat after flowing through the heated surfaces of the superheaters, certain heated surface pipes can be influenced by heat deviation, even different expansion creep occurs, the normal operation of the heated surfaces is adversely affected, and the problem becomes an important factor for restricting the safe operation of the boiler.
Disclosure of Invention
The invention aims to solve the problem that the prior constraint device between the guide plate and the flue pipe wall is easy to fail, so that the guide plate cannot be fixed in the flue gas operation process and cannot normally exert the guide effect.
The smoke guide plate restraining device comprises a guide plate support plate (1), a reinforcing rib plate (2) and a fastening piece (3), wherein one end of the guide plate support plate (1) is fixedly arranged at the side edge of a smoke guide plate (4) through the fastening piece (3), and the other end of the guide plate support plate (1) is fixedly arranged on the inner wall of a flue side wall (10); the reinforcing rib plate (2) is fixedly connected with the guide plate support plate (1) and the inner wall of the flue side wall (10) respectively.
One end of the baffle support plate can be fixedly connected to the inner guard plate and then arranged on the inner wall of the flue side wall 10. Namely: the smoke guide plate restraining device comprises a guide plate support plate (1), a reinforcing rib plate (2), a fastener (3) and an inner guard plate (7), wherein the inner guard plate (7) is tightly attached to the inner wall of the side wall (10) of the flue and fixedly connected with the inner guard plate, one end of the guide plate support plate (1) is fixedly arranged at the side edge of the smoke guide plate (4) through the fastener (3), and the other end of the guide plate support plate (1) is fixedly connected with the inner guard plate (7); the reinforcing rib plate (2) is fixedly connected with the guide plate support plate (1) and the inner guard plate (7) respectively.
Further, the flue gas guide plate restraining device also comprises a reinforcing channel steel (5), two ends of the reinforcing channel steel (5) are respectively fixed on flue upright posts (6) at two ends of the flue side wall (10), one side surface of the reinforcing channel steel (5) is fixedly arranged on the outer wall of the flue side wall (10), and the position of the side surface of the reinforcing channel steel (5) corresponds to the position of the guide plate support plate (1) arranged on the inner guard plate (7) or the position of the inner wall of the flue side wall (10).
Further, the fastener (3) comprises a bolt (3-3), two bolt gaskets (3-1) and a bolt sleeve (3-2); one of the bolt gaskets (3-1) is arranged on the lower surface of the guide plate support plate (1), the other bolt gasket (3-1) is arranged on the upper surface of the flue gas guide plate (4), and the bolt sleeve (3-2) passes through the guide plate support plate (1) and the flue gas guide plate (4) and is arranged between the two bolt gaskets (3-1); the bolts (3-3) pass through the bolt holes of the two bolt gaskets (3-1) and the inside of the bolt sleeve (3-2) to be fastened.
Further, a shock-resistant material layer (8) is arranged between the flue gas guide plate (4) and the guide plate support plate (1) and between the flue gas guide plate (4) and the bolt gasket (3-1) on the flue gas guide plate (4).
Further, the shock-resistant material layer (8) is made of ceramic fiber felt.
The invention has the beneficial effects that:
The reinforcing rib plate provided by the invention not only strengthens the connection strength between the guide plate support plate and the side wall of the flue, but also reduces the cantilever effect of the guide plate support plate, and further reduces the resonance effect between the guide plate support plate and the guide plate, thereby greatly reducing the damage rate and the damage degree caused by resonance among the guide plate, the guide plate support plate and the fastening piece, prolonging the service life by more than 33%, and further ensuring the stability and reliability of the guide plate. In addition, other components can reduce the vibration amplitude of the guide plate and the like, and the service lives of the guide plate and the restraint device can be further prolonged.
Drawings
FIG. 1 is a side cross-sectional view of a flue;
FIG. 2 is a cross-sectional view B-B of FIG. 1;
FIG. 3 is a cross-sectional view A-A of FIG. 2;
fig. 4 is a cross-sectional view of fig. 2A-A showing a specific construction of a fastener.
Detailed Description
The technical scheme of the invention is further described by the following specific embodiments with reference to the accompanying drawings:
Detailed description of the preferred embodiments
The smoke guide plate restraining device comprises a guide plate support plate 1, a reinforcing rib plate 2 and a fastening piece 3, wherein one end of the guide plate support plate 1 is fixedly arranged at the side edge of a smoke guide plate 4 through the fastening piece 3, and the other end of the guide plate support plate 1 is fixedly arranged on the inner wall of a flue side wall 10; the reinforcing rib plate 2 is fixedly connected with the guide plate support plate 1 and the inner wall of the flue side wall 10 respectively.
The flue gas guide plates are fixed on the side wall of the flue through a plurality of guide plate support plates 1; the surface of the guide plate support plate 1 is parallel to the surface of the flue guide plate, one end of the guide plate support plate 1 is fixedly connected with the flue guide plate through a fastener, and the other end of the guide plate support plate 1 is vertically and fixedly connected to the side wall of the flue; the plane where the reinforcing rib plate 2 is located is perpendicular to the side wall of the flue and the plane where the guide plate support plate 1 is located respectively, one side of the reinforcing rib plate 2 is fixed on the guide plate support plate 1, the other side adjacent to one side of the reinforcing rib plate is fixed on the side wall of the flue, the two reinforcing rib plates are located on two sides of the guide plate support plate respectively and are oppositely arranged, the reinforcing rib plate 2 not only strengthens the connection strength between the guide plate support plate 1 and the side wall of the flue, but also reduces the cantilever effect of the guide plate support plate, and further lightens the resonance effect between the guide plate support plate and the guide plate, thereby greatly reducing the damage rate and the damage degree caused by resonance among the guide plate, the guide plate support plate and the fasteners, prolonging the service life by more than 33%, and further guaranteeing the stability and reliability of the guide plate.
The second embodiment is as follows: the present embodiment is described with reference to figures 3 to 4,
The smoke deflector restraint device comprises a deflector support plate 1, a reinforcing rib plate 2, a fastener 3 and an inner guard plate 7, wherein the inner guard plate 7 is tightly attached to the inner wall of the side wall 10 of the flue and fixedly connected with the inner guard plate, one end of the deflector support plate 1 is fixedly arranged at the side edge of the smoke deflector 4 through the fastener 3, and the other end of the deflector support plate 1 is fixedly connected with the inner guard plate 7; the reinforcing rib plate 2 is fixedly connected with the guide plate support plate 1 and the inner guard plate 7 respectively.
The plane that inner guard plate 7 is located is parallel and carries out fixed connection with the flue lateral wall, the flue gas guide plate passes through a plurality of guide plate extension board 1 to be fixed on inner guard plate 7, the one end of guide plate extension board 1 carries out fixed connection through fastener and flue guide plate, the perpendicular fixed connection of the other end is on inner guard plate 7, the plane that reinforcing rib plate 2 is located is perpendicular to the face that inner guard plate 7 and guide plate extension board 1 are located respectively, one side of reinforcing rib plate 2 is fixed on guide plate extension board 1, the another side adjacent to reinforcing rib plate one side is fixed on inner guard plate 7, two reinforcing rib plates are located the both sides of guide plate extension board respectively and set up relatively. The inner guard plate is arranged to increase the connection area of the guide plate support plate 1 and the side wall of the flue, so that the guide plate of the flue is more favorable for fixing the guide plate of the flue, the vibration amplitude of the guide plate is reduced, the cantilever effect of the guide plate support plate is reduced, the resonance effect between the guide plate support plate and the guide plate is further reduced, the damage rate and the damage degree of the fastening piece 3 caused by resonance between the guide plates are greatly reduced, the service life can be prolonged by more than 35%, and the guide plate is further ensured to be stable and reliable.
And a third specific embodiment: the present embodiment will be described with reference to figures 1 to 2,
The smoke deflector restraint device of this embodiment further includes a reinforcing channel steel 5, two ends of the reinforcing channel steel 5 are respectively fixed on the flue upright posts 6 at two ends of the flue side wall 10, one side surface of the reinforcing channel steel 5 is fixedly installed on the outer wall of the flue side wall 10, and the position where the side surface of the reinforcing channel steel 5 is installed corresponds to the position where the deflector support plate 1 is installed on the inner guard plate 7 or the position on the inner wall of the flue side wall 10.
When the flue gas flows through the flue rapidly, the vibration generated by the flue gas flow-through flue can drive the vibration of the flue gas flow-guide plate, the flow-guide plate support plate vibrating along with the vibration drives the vibration of the side wall of the flue, the stress intensity of the outer wall of the side wall of the flue is enhanced by the reinforcing channel steel 5, and the vibration amplitude of the side wall of the flue is reduced, so that the vibration amplitude of the flow-guide plate support plate and the flow-guide plate is reduced, the flow-guide plate is not easy to damage, and the service lives of the flow-guide plate and the restraint device are further prolonged.
Other structures and connection modes are the same as those of the first or second embodiment.
The specific embodiment IV is as follows: the present embodiment is described with reference to figures 3 and 4,
The fastener 3 of the embodiment comprises a bolt 3-3, two bolt gaskets 3-1 and a bolt sleeve 3-2; one of the bolt gaskets 3-1 is arranged on the lower surface of the guide plate support plate 1, the other bolt gasket 3-1 is arranged on the upper surface of the flue gas guide plate 4, and the bolt sleeve 3-2 passes through the guide plate support plate 1 and the flue gas guide plate 4 and is arranged between the two bolt gaskets 3-1; the bolts 3-3 pass through the bolt holes of the two bolt gaskets 3-1 and the inside of the bolt sleeve 3-2 to be fastened.
The arrangement of the bolt gasket and the bolt sleeve greatly reduces the related friction between the bolt and the flue gas guide plate and the guide plate support plate caused by vibration, so that the bolt is not easy to damage.
Other structures and connection modes are the same as those of the first, second or third embodiments.
Fifth embodiment: the present embodiment will be described with reference to figure 3,
A damping material layer 8 is further disposed between the flue gas deflector 4 and the deflector support plate 1 and between the flue gas deflector 4 and the bolt gasket 3-1 on the flue gas deflector.
A damping-resistant material layer is arranged between the flue gas guide plate and the guide plate support plate, and a damping-resistant material layer is arranged between the flue gas guide plate and the bolt gasket 3-1 on the upper surface of the flue gas guide plate.
Other structures and connection modes are the same as those of the fourth embodiment.
Specific embodiment six: the material of the vibration-resistant material layer 8 according to the present embodiment is a ceramic fiber blanket.
The adverse effect of expansion and contraction of the guide plate on the support plate is eliminated by utilizing the ceramic fiber felt.
Other structures and connection modes are the same as those of the fifth embodiment.
Claims (10)
1. A smoke deflector restraint device, characterized in that: the smoke guide plate restraining device comprises a guide plate support plate (1), a reinforcing rib plate (2) and a fastening piece (3), one end of the guide plate support plate (1) is fixedly arranged at the side edge of the smoke guide plate (4) through the fastening piece (3), and the other end of the guide plate support plate (1) is fixedly arranged on the inner wall of the side wall (10) of the flue; the reinforcing rib plate (2) is fixedly connected with the guide plate support plate (1) and the inner wall of the flue side wall (10) respectively.
2. The smoke baffle restraining device of claim 1, wherein: the flue gas cooling device further comprises a reinforcing channel steel (5), two ends of the reinforcing channel steel (5) are respectively fixed on flue upright posts (6) at two ends of the flue side wall (10), one side face of the reinforcing channel steel (5) is fixedly installed on the outer wall of the flue side wall (10), and the installed position of the side face of the reinforcing channel steel (5) corresponds to the installed position of the guide plate support plate (1) on the inner wall of the flue side wall (10).
3. The smoke baffle restraining device of claim 2, wherein: the fastener (3) comprises a bolt (3-3), two bolt gaskets (3-1) and a bolt sleeve (3-2); one of the bolt gaskets (3-1) is arranged on the lower surface of the guide plate support plate (1), the other bolt gasket (3-1) is arranged on the upper surface of the flue gas guide plate (4), and the bolt sleeve (3-2) passes through the guide plate support plate (1) and the flue gas guide plate (4) and is arranged between the two bolt gaskets (3-1); the bolts (3-3) pass through the bolt holes of the two bolt gaskets (3-1) and the inside of the bolt sleeve (3-2) to be fastened.
4. A smoke baffle restriction according to claim 3, wherein: a shock-resistant material layer (8) is further arranged between the flue gas guide plate (4) and the guide plate support plate (1) and between the flue gas guide plate (4) and the bolt gasket (3-1) on the flue gas guide plate (4).
5. The smoke baffle restraining device of claim 4, wherein: the shock-resistant material layer (8) is made of ceramic fiber felt.
6. A smoke deflector restraint device, characterized in that: the smoke guide plate restraining device comprises a guide plate support plate (1), a reinforcing rib plate (2), a fastener (3) and an inner guard plate (7), wherein the inner guard plate (7) is tightly attached to the inner wall of the side wall (10) of the flue and fixedly connected with the inner guard plate, one end of the guide plate support plate (1) is fixedly arranged at the side edge of the smoke guide plate (4) through the fastener (3), and the other end of the guide plate support plate (1) is fixedly connected with the inner guard plate (7); the reinforcing rib plate (2) is fixedly connected with the guide plate support plate (1) and the inner guard plate (7) respectively.
7. The smoke baffle constraint apparatus of claim 6 wherein: the novel flue gas cooling device further comprises reinforcing channel steel (5), two ends of the reinforcing channel steel (5) are respectively fixed on flue upright posts (6) at two ends of the flue side wall (10), one side face of the reinforcing channel steel (5) is fixedly installed on the outer wall of the flue side wall (10), and the installed position of the side face of the reinforcing channel steel (5) corresponds to the installed position of the guide plate support plate (1) on the inner guard plate (7).
8. The smoke baffle constraint apparatus of claim 7 wherein: the fastener (3) comprises a bolt (3-3), two bolt gaskets (3-1) and a bolt sleeve (3-2); one of the bolt gaskets (3-1) is arranged on the lower surface of the guide plate support plate (1), the other bolt gasket (3-1) is arranged on the upper surface of the flue gas guide plate (4), and the bolt sleeve (3-2) passes through the guide plate support plate (1) and the flue gas guide plate (4) and is arranged between the two bolt gaskets (3-1); the bolts (3-3) pass through the bolt holes of the two bolt gaskets (3-1) and the inside of the bolt sleeve (3-2) to be fastened.
9. The smoke baffle constraint apparatus of claim 8 wherein: a shock-resistant material layer (8) is further arranged between the flue gas guide plate (4) and the guide plate support plate (1) and between the flue gas guide plate (4) and the bolt gasket (3-1) on the flue gas guide plate (4).
10. The smoke baffle constraint apparatus of claim 9 wherein: the shock-resistant material layer (8) is made of ceramic fiber felt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811114043.7A CN109028120B (en) | 2018-09-25 | 2018-09-25 | Flue gas guide plate restraint device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811114043.7A CN109028120B (en) | 2018-09-25 | 2018-09-25 | Flue gas guide plate restraint device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109028120A CN109028120A (en) | 2018-12-18 |
| CN109028120B true CN109028120B (en) | 2024-06-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811114043.7A Active CN109028120B (en) | 2018-09-25 | 2018-09-25 | Flue gas guide plate restraint device |
Country Status (1)
| Country | Link |
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| CN (1) | CN109028120B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110791295A (en) * | 2019-11-29 | 2020-02-14 | 张家港宏昌钢板有限公司 | Airflow adjusting baffle for coke oven flue |
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2018
- 2018-09-25 CN CN201811114043.7A patent/CN109028120B/en active Active
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| CN109028120A (en) | 2018-12-18 |
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