CN220910493U - Flue gas air valve for flue - Google Patents
Flue gas air valve for flue Download PDFInfo
- Publication number
- CN220910493U CN220910493U CN202322459137.0U CN202322459137U CN220910493U CN 220910493 U CN220910493 U CN 220910493U CN 202322459137 U CN202322459137 U CN 202322459137U CN 220910493 U CN220910493 U CN 220910493U
- Authority
- CN
- China
- Prior art keywords
- valve
- rotating shaft
- valve seat
- flue
- flue gas
- 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.)
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Links
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims abstract description 22
- 239000003546 flue gas Substances 0.000 title claims abstract description 22
- 230000007246 mechanism Effects 0.000 claims abstract description 21
- 230000008878 coupling Effects 0.000 claims abstract description 15
- 238000010168 coupling process Methods 0.000 claims abstract description 15
- 238000005859 coupling reaction Methods 0.000 claims abstract description 15
- 238000007789 sealing Methods 0.000 claims description 17
- 230000001681 protective effect Effects 0.000 claims description 10
- 230000003014 reinforcing effect Effects 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 206010022000 influenza Diseases 0.000 claims 2
- 230000008859 change Effects 0.000 abstract description 4
- 239000000779 smoke Substances 0.000 description 9
- 230000030279 gene silencing Effects 0.000 description 4
- 238000005299 abrasion Methods 0.000 description 3
- 230000008602 contraction Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000001035 drying Methods 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 239000010802 sludge Substances 0.000 description 2
- 238000001694 spray drying Methods 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Lift Valve (AREA)
Abstract
The flue gas air valve for the flue comprises a valve seat and a valve cavity formed in the valve seat, wherein a rotating shaft which penetrates through the valve seat and is rotationally connected with the valve seat is arranged in the valve cavity, a valve clack is arranged on the rotating shaft, and the valve clacks are connected to two opposite sides of the rotating shaft; the inner side of the valve clack is provided with a connecting component detachably connected with the rotating shaft; the valve seat is provided with a driving mechanism connected with the rotating shaft; compared with the prior art, through installing the valve clack in the relative both sides of axis of rotation to the valve clack inboard is equipped with the coupling assembling who is connected with the axis of rotation is detachable, when needs valve clack takes place to damage, can directly dismantle the valve clack from the axis of rotation through coupling assembling, need not other operations, convenient and fast, thereby is convenient for change to the valve clack, has also saved the cost of changing the blast gate simultaneously.
Description
Technical Field
The utility model relates to the technical field of air valves, in particular to a flue gas air valve for a flue.
Background
In the running process of the sludge spray drying incineration system, the proportion of hot flue gas and atomized sludge needs to be controlled, which is an important factor affecting the drying effect, so that an adjusting valve needs to be arranged at the inlet of the drying tower, the temperature of the valve is above 850 ℃ because the valve mounting position is positioned on a high-temperature flue between the secondary combustion chamber and the spray drying tower, the temperature of the common high-temperature resistant valve cannot meet the high temperature because of the common temperature resistance, and the abrasion of smoke dust to the valve is serious because of the high flow speed of the flue gas.
The utility model discloses a high-temperature wear-resistant smoke ventilation valve disclosed in China patent application number 202123389266.4, which comprises a valve frame shell, wherein a mounting cavity is formed in the valve frame shell, a silencing and vibration-reducing block is arranged in the mounting cavity, a valve frame shell cover is detachably arranged on the outer side of the mounting cavity, the mounting cavity is formed in the valve frame shell, the silencing and vibration-reducing block is arranged in the mounting cavity, the silencing and vibration-reducing block has the silencing and vibration-reducing effects, vibration generated by fluid flow and formed noise are reduced, the tightness of nuts on a flange is guaranteed, and potential safety hazards are reduced. The China patent with the application number 201720680406.8 discloses a burner flue gas ventilation butterfly valve, which comprises a valve body, wherein a valve cavity is formed through the valve body, a valve rod is rotatably arranged through the valve body, a butterfly plate for blocking the valve cavity is fixedly arranged on the valve rod, an expansion gap is formed between the butterfly plate and the inner wall of the valve body, a valve rod driving device is arranged at the top end of the valve rod, and radiating fins are sleeved on the valve rod driving device from top to bottom; the expansion gap is arranged, so that the butterfly plate is effectively prevented from being blocked due to expansion caused by heat and contraction caused by cold, the use is safe and reliable, the heat on the valve body can be isolated and cooled by the radiating fins, the damage of the valve rod driving device caused by overhigh temperature is effectively reduced, the structure is simple, the cost is low, and the use is safe and convenient.
The prior art disclosed above is through with butterfly valve fixed mounting on the valve rod, under the drive of the drive arrangement who is connected with the valve rod, the butterfly valve follows the valve rod and rotates to realize the switching function of butterfly valve, when the velocity of flow of flue gas is great, it is comparatively serious to cause the wearing and tearing that the butterfly valve received, thereby make the butterfly valve appear damaging easily, and the butterfly valve is fixed to be set up on the valve rod, can't dismantle the change, thereby can only change whole butterfly valve, however the change of butterfly valve is comparatively loaded down with trivial details, waste time and energy, and increased use cost.
Disclosure of utility model
The utility model aims to overcome the defects in the prior art, and provides the flue gas air valve for the flue, which has a simple structure and can independently replace the valve clack.
In order to achieve the above object, the present utility model adopts the following technical scheme: the flue gas air valve for the flue comprises a valve seat and a valve cavity formed in the valve seat, wherein a rotating shaft which penetrates through the valve seat and is rotationally connected with the valve seat is arranged in the valve cavity, a valve clack is arranged on the rotating shaft, and the valve clacks are connected to two opposite sides of the rotating shaft; the inner side of the valve clack is provided with a connecting component detachably connected with the rotating shaft; and a driving mechanism connected with the rotating shaft is arranged on the valve seat.
As a preferable scheme of the utility model, the two valve clacks are of semicircular wavy structures, the connecting component comprises connecting pieces for fixing the valve clacks, the positions of the connecting pieces on the valve clacks at two sides of the rotating shaft are corresponding, and bolts for fixing the connecting pieces are arranged between the corresponding two connecting pieces.
As a preferable scheme of the utility model, a sealing mechanism for sealing the valve seat is arranged at the joint of the rotating shaft and the valve seat, and the sealing mechanism is sleeved on the rotating shaft.
As a preferable scheme of the utility model, the sealing mechanism comprises a stuffing box and a cover plate for fixing the stuffing box, and the cover plate is sleeved on the rotating shaft.
As a preferable mode of the utility model, the end part of the rotating shaft is sleeved with a bearing connected with the cover plate.
As a preferable mode of the utility model, the bearing is coated with a protective cover for protecting the bearing, and the rotating shaft is connected with a nut abutting against the protective cover.
As a preferable scheme of the utility model, the two ends of the valve seat are respectively provided with a first connecting flange for connecting the valve seat and the flue.
As a preferable scheme of the utility model, a rib plate for reinforcing the connection strength of the valve seat and the first connecting flange is arranged between the first connecting flange and the valve seat.
As a preferable mode of the utility model, the driving mechanism comprises an actuator arranged on one side of the valve seat, and the actuator is connected with a telescopic universal coupling which is connected with the rotating shaft.
As a preferable mode of the utility model, a second connecting flange for connecting the telescopic universal coupling is arranged between the actuator and the telescopic universal coupling, and an actuator seat for protecting the actuator is arranged on the actuator.
Compared with the prior art, the utility model has the beneficial effects that:
1. The valve clack is arranged on two opposite sides of the rotating shaft, the connecting components detachably connected with the rotating shaft are arranged on the inner side of the valve clack, when the valve clack is required to be damaged, the valve clack can be directly detached from the rotating shaft through the connecting components, other operations are not required, and the valve clack is convenient and quick to replace, and meanwhile the cost for replacing the air valve is also saved;
2. Furthermore, as the valve clack is of a semicircular wave-shaped structure, the contact area between the valve clack and smoke is increased, the impact abrasion of the smoke to the valve clack is reduced while the structural strength of the valve clack is increased, the service life of the valve clack is prolonged, and the cost is saved;
3. Further, through the telescopic universal coupling connected with the rotating shaft and the actuator, the heat conduction of high-temperature smoke is effectively reduced, so that electronic components of the actuator are protected, and due to the telescopic structure of the telescopic universal coupling, dislocation caused by expansion and contraction of the air valve under the high-temperature working condition can be compensated, and smooth opening and closing of the air valve is ensured.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a side view of the present utility model;
FIG. 3 is an enlarged view of the structure at A in FIG. 2
Reference numerals: valve seat 1, valve cavity 101, axis of rotation 102, valve clack 2, coupling assembly 201, bolt 2012, actuating mechanism 3, actuator seat 301, second flange 302, actuator 303, telescopic universal joint 304, first flange 4, gusset 401, sealing mechanism 5, stuffing box 501, apron 502, bearing 6, safety cover 601, nut 602.
Detailed Description
Embodiments of the present utility model will be described in detail below with reference to the accompanying drawings.
As shown in fig. 1-2, a flue gas air valve for a flue comprises a valve seat 1 and a valve cavity 101 formed in the valve seat 1, wherein a rotating shaft 102 penetrating through the valve seat 1 and rotationally connected with the valve seat 1 is arranged in the valve cavity 101, a valve clack 2 is arranged on the rotating shaft 102, and the valve clack 2 is connected to two opposite sides of the rotating shaft 102; the inner side of the valve clack 2 is provided with a connecting component 201 which is detachably connected with the rotating shaft 102; the valve seat 1 is provided with a driving mechanism 3 connected to a rotation shaft 102.
Further, the valve seat 1 is of a cylindrical structure, the valve cavity 101 penetrates through the valve seat 1 along the axial direction of the valve seat 1, the rotating shaft 102 is perpendicular to the axial direction of the valve seat 1, the rotating shaft 102 is located on the diameter of a cross-section circle of the valve seat 1, the connecting assembly 201 is arranged on one side of the valve clack 2, which is abutted against the rotating shaft 102, the valve clack 2 is fixedly mounted on the rotating shaft 102 through the connecting assembly 201, a certain gap is formed between the valve clack 2 and the inner wall of the valve seat 1, and therefore the valve clack 2 is prevented from being clamped on the inner wall of the valve seat 1 during rotation.
The two valve clacks 2 are of semicircular wavy structures, the connecting assembly 201 comprises connecting pieces 2011 used for fixing the valve clacks 2, positions of the connecting pieces 2011 on the valve clacks 2 on two sides of the rotating shaft 102 are corresponding, and bolts 2012 used for fixing the connecting pieces 2011 are arranged between the corresponding two connecting pieces 2011.
The wave structure of the valve clack 2 increases the structural strength of the valve clack 2, and simultaneously increases the contact area of the valve clack 2 and smoke, when the smoke flowing at high speed impacts the valve clack 2, the impact abrasion of the smoke is reduced through the wave structure of the valve clack 2, and therefore the service life of the valve clack 2 is prolonged.
Further, the connecting pieces 2011 are located on the diameter side of the semicircular structure of the valve clack 2, the connecting pieces 2011 are arranged along the length direction of the diameter of the valve clack 2, the connecting pieces 2011 on the valve clack 2 on two sides of the rotating shaft 102 are corresponding and are arranged in parallel, the connecting pieces 2011 are formed with bolt holes for fixing two opposite connecting pieces 2011, and the bolts 2012 penetrate through the bolt holes to fix the connecting pieces 2011 on two sides of the rotating shaft 102 on the rotating shaft 102.
The junction of axis of rotation 102 and disk seat 1 is equipped with the sealing mechanism 5 that is used for sealed disk seat 1, and sealing mechanism 5 cup joints on axis of rotation 102, and sealing mechanism 5 sets up the hole department that is connected at axis of rotation 102 and disk seat 1, realizes the sealing to the junction of axis of rotation 102 and disk seat 1 through sealing mechanism 5 to avoid the flue gas to flow out from the junction of axis of rotation 102 and disk seat 1.
The sealing mechanism 5 comprises a stuffing box 501 and a cover plate 502 for fixing the stuffing box 501, the cover plate 502 is sleeved on the rotating shaft 102, the stuffing box 501 is fixedly arranged on the outer wall of the valve seat 1, the cover plate 502 is positioned on the outer side of the stuffing box 501, protection of the stuffing box 501 is achieved through the cover plate 502, meanwhile, the rotating shaft 102 penetrates through the cover plate 502 and the stuffing box 501, the rotating shaft 102 is rotationally connected with the cover plate 502 and the stuffing box 501, high-temperature-resistant filler is filled in the stuffing box 501, and sealing of a joint of the rotating shaft 102 and the valve seat 1 is achieved through the high-temperature-resistant filler.
The end of the rotating shaft 102 is sleeved with a bearing 6 connected with the cover plate 502, the cover plate 502 is fixed through the bearing 6, and meanwhile, the rotating shaft 102 is connected with the cover plate 502 in a rotating mode.
The bearing 6 is coated with a protective cover 601 for protecting the bearing 6, a nut 602 abutting against the protective cover 601 is connected to the rotating shaft 102, the protective cover 601 is sleeved on the rotating shaft 102, the protective cover 601 is located on the outer side of the bearing 6, the protective cover 601 is fixed with the rotating shaft 102 through the nut 602, and the protective cover 601 rotates along with the rotating shaft 102.
The both ends of disk seat 1 all are equipped with the first connection flange 4 that is used for connecting disk seat 1 and flue, and first connection flange 4 is located disk seat 1's circumference, connects disk seat 1 on the flue under the effect of first connection flange 4.
A rib plate 401 for reinforcing the connection strength between the valve seat 1 and the first connecting flange 4 is arranged between the first connecting flange 4 and the valve seat 1.
The driving mechanism 3 comprises an actuator 303 arranged on one side of the valve seat 1, a telescopic universal coupler 304 is connected to the actuator 303, the telescopic universal coupler 304 is connected with the rotating shaft 102, the heat conduction of high-temperature smoke can be effectively reduced through the telescopic universal coupler 304, electronic components of the actuator 303 are protected, and the telescopic structure of the telescopic universal coupler 304 can compensate dislocation of the air valve caused by expansion and contraction under high-temperature working conditions, so that the air valve can be smoothly opened and closed.
A second connecting flange 302 for connecting the telescopic universal coupling 304 is arranged between the actuator 303 and the telescopic universal coupling 304, an actuator seat 301 for protecting the actuator 303 is arranged on the actuator 303, and the second connecting flange 302 is arranged between an output shaft of the actuator 303 and the telescopic universal coupling 304.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present utility model. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model; thus, the present utility model is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Although the reference numerals in the figures are used more herein: the terms of valve seat 1, valve chamber 101, rotation shaft 102, valve flap 2, connection assembly 201, bolt 2012, driving mechanism 3, actuator seat 301, second connection flange 302, actuator 303, telescopic universal joint 304, first connection flange 4, rib plate 401, sealing mechanism 5, stuffing box 501, cover plate 502, bearing 6, protection cover 601, nut 602, etc. are not excluded. These terms are used merely for convenience in describing and explaining the nature of the utility model; they are to be interpreted as any additional limitation that is not inconsistent with the spirit of the present utility model.
Claims (10)
1. The flue gas air valve for the flue comprises a valve seat (1) and a valve cavity (101) formed in the valve seat (1), and is characterized in that a rotating shaft (102) penetrating through the valve seat (1) and rotationally connected with the valve seat (1) is arranged in the valve cavity (101), a valve clack (2) is arranged on the rotating shaft (102), and the valve clacks (2) are connected to two opposite sides of the rotating shaft (102); a connecting component (201) detachably connected with the rotating shaft (102) is arranged on the inner side of the valve clack (2); the valve seat (1) is provided with a driving mechanism (3) connected with the rotating shaft (102).
2. The flue gas air valve for a flue according to claim 1, wherein the two valve clacks (2) are of semicircular wave-shaped structures, the connecting assembly (201) comprises connecting pieces (2011) for fixing the valve clacks (2), positions of the connecting pieces (2011) on the valve clacks (2) on two sides of the rotating shaft (102) are corresponding, and bolts (2012) for fixing the connecting pieces (2011) are arranged between the corresponding two connecting pieces (2011).
3. A flue gas damper for a flue according to claim 1, wherein a sealing mechanism (5) for sealing the valve seat (1) is arranged at the joint of the rotating shaft (102) and the valve seat (1), and the sealing mechanism (5) is sleeved on the rotating shaft (102).
4. A flue gas damper for a flue according to claim 3, wherein the sealing means (5) comprises a stuffing box (501) and a cover plate (502) for fixing the stuffing box (501), the cover plate (502) being sleeved on the rotating shaft (102).
5. A flue gas damper for flues according to claim 4, characterized in that the end of the rotating shaft (102) is sleeved with a bearing (6) connected with a cover plate (502).
6. The flue gas damper for the flue according to claim 5, wherein the bearing (6) is coated with a protective cover (601) for protecting the bearing (6), and a nut (602) abutting against the protective cover (601) is connected to the rotating shaft (102).
7. A flue gas damper for a flue according to claim 1, wherein the valve seat (1) is provided with a first connecting flange (4) at both ends for connecting the valve seat (1) with the flue.
8. A flue gas damper for a flue according to claim 7, wherein a rib plate (401) for reinforcing the connection strength of the valve seat (1) and the first connecting flange (4) is provided between the first connecting flange (4) and the valve seat (1).
9. A flue gas damper for a flue according to claim 1, wherein the driving mechanism (3) comprises an actuator (303) arranged on one side of the valve seat (1), and the actuator (303) is connected with a telescopic universal coupling (304), and the telescopic universal coupling (304) is connected with the rotating shaft (102).
10. A flue gas damper for flues according to claim 9, characterized in that a second connecting flange (302) for connecting the telescopic universal coupling (304) is arranged between the actuator (303) and the telescopic universal coupling (304), and an actuator seat (301) for protecting the actuator (303) is arranged on the actuator (303).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2023223395382 | 2023-08-30 | ||
| CN202322339538 | 2023-08-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220910493U true CN220910493U (en) | 2024-05-07 |
Family
ID=90914243
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322459137.0U Active CN220910493U (en) | 2023-08-30 | 2023-09-11 | Flue gas air valve for flue |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220910493U (en) |
-
2023
- 2023-09-11 CN CN202322459137.0U patent/CN220910493U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |