CN218207850U - Air-cooled ultra-high temperature flue damper - Google Patents
Air-cooled ultra-high temperature flue damper Download PDFInfo
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- CN218207850U CN218207850U CN202222439009.5U CN202222439009U CN218207850U CN 218207850 U CN218207850 U CN 218207850U CN 202222439009 U CN202222439009 U CN 202222439009U CN 218207850 U CN218207850 U CN 218207850U
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- axle
- temperature flue
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Abstract
The utility model relates to an air-cooled ultra-temperature flue flapper valve, including valve body, valve plate and valve plate axle, the internal parallel of valve is equipped with a plurality of valve plate axles, the valve plate axle is the hollow shaft, the manifold that admits air is passed through metal collapsible tube connection to the one end of valve plate axle, and the other end is given vent to anger through metal collapsible tube connection, and the manifold that gives vent to anger connects blow-down pipe, valve plate axle length direction's central below is equipped with a supporting beam, a supporting beam of a plurality of valve plate axle sharing. The utility model is suitable for a 1000-1100 ℃ ultra-temperature operating mode, cooling air get into each valve board axle and carry out the forced air cooling to the valve board axle after the manifold distribution of admitting air, fall the temperature of valve board axle below 900 ℃, improve the heat intensity of axle, reduce the heat altered shape of axle, hot-blast discharge through blow-down pipe after the manifold joins of giving vent to anger of heat transfer after.
Description
Technical Field
The utility model relates to a flue flapper valve technical field, concretely relates to air-cooled ultra-temperature flue flapper valve sets up on the high temperature flue, is applicable to the flow direction control of ultra-temperature flue gas.
Background
The flue damper is the main equipment for regulating flow and switching passage in chimney or flue in petroleum, chemical, electric and metallurgical industries. With the development of the petrochemical industry, part of the flue damper is required to bear ultrahigh temperature, the temperature of the using working condition is 1000-1100 ℃, the using working condition of the existing high-temperature flue damper is about 900 ℃, the length of the damper shaft is more than 2m, and the damper shaft is subjected to thermal deformation beyond the temperature, so that the faults of rotation blocking, breakage and the like of the damper valve are caused, and the normal use of the flue damper is influenced. Meanwhile, due to the ultrahigh temperature of the flue gas, the thermal insulation lining of the baffle valve needs to be redesigned, so that the heat conductivity coefficient is reduced, and the heat insulation is better.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects, and provides an air-cooled ultra-high temperature flue baffle valve which is suitable for the ultra-high temperature working condition of 1000-1100 ℃, cooling air enters each valve plate shaft after being distributed by an air inlet collecting pipe to carry out air cooling on the valve plate shaft, the temperature of the valve plate shaft is reduced to be below 900 ℃, the heat intensity of the shaft is improved, the thermal deformation of the shaft is reduced, and hot air after heat exchange is discharged through an emptying pipe after being converged by an air outlet collecting pipe; the valve plate shaft is supported by matching with the hollow support beam to reduce the deformation of the valve plate shaft; the inner wall of the valve body is provided with the ceramic fiber heat-insulating lining, so that the heat conductivity coefficient is reduced, the heat loss is reduced, the heat is better preserved, the weight can be reduced, and the market demand is met.
The purpose of the utility model is realized like this:
the utility model provides an air-cooled ultra-temperature flue flapper valve, includes valve body, valve plate and valve plate axle, the internal parallel of valve is equipped with a plurality of valve plate axles, the valve plate axle is the hollow shaft, the one end of valve plate axle is passed through metal collapsible tube and is connected the manifold of admitting air, and the other end is passed through metal collapsible tube and is connected the manifold of giving vent to anger, and the manifold of giving vent to anger connects the blow-down pipe, valve plate axle length direction's center below is equipped with a supporting beam, a supporting beam of a plurality of valve plate axle sharing.
Preferably, two valve plates are arranged on each valve plate shaft along the length direction of the valve plate shafts, a space is reserved between the two valve plates on one valve plate shaft and used for accommodating the supporting beam, and the valve plate shafts positioned in the space are in contact with the supporting beam.
Preferably, the support beam is also of a hollow structure, one end of the support beam is connected with the air inlet collecting pipe, and the other end of the support beam is connected with the air outlet collecting pipe.
Preferably, the periphery of the inner wall of the valve body is provided with a heat-insulating lining, the heat-insulating lining sequentially comprises a first high-purity ceramic fiber blanket, a nanometer microporous heat-insulating plate, a second high-purity ceramic fiber blanket and a zirconium-containing ceramic fiber integral module from outside to inside, and the inner surface of the zirconium-containing ceramic fiber integral module is provided with a high-temperature hardening agent layer.
Preferably, shaft end seals are arranged at the joints of the valve body, the valve plate shaft and the support beam.
Preferably, the valve plate is made of 314 or ZG40Cr25Ni35.
Preferably, the valve plate shaft and the support beam are made of a high-temperature alloy material A-608 HP Nb.
Preferably, the valve plate is fixed on the valve plate shaft 3 through an anchor ear, and the anchor ear adopts ZG40Cr25Ni35.
The utility model has the advantages that:
cooling air is distributed by the air inlet collecting pipe and then enters each valve plate shaft to cool the valve plate shafts, the temperature of the valve plate shafts is reduced to be lower than 900 ℃, the thermal strength of the shafts is improved, the thermal deformation of the shafts is reduced, and hot air after heat exchange is converged by the air outlet collecting pipe and then is discharged by the air discharge pipe;
the valve plate shaft is supported by matching with the hollow support beam to reduce the deformation of the valve plate shaft;
the inner wall of the valve body is provided with the ceramic fiber heat-insulating lining, so that the heat conductivity coefficient is reduced, the heat loss is reduced, the heat is better preserved, the weight can be reduced, and the market demand is met.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic view of fig. 1 taken along direction a.
Fig. 3 is a partially enlarged view of fig. 2.
Wherein: a valve body 1; a valve plate 2; a valve plate shaft 3; a support beam 4; a heat-insulating lining 5; a first high purity ceramic fiber blanket 5.1; 5.2 of a nanometer microporous thermal insulation board; a second high purity ceramic fiber blanket 5.3; a zirconium-containing ceramic fiber monolithic module 5.4; a high temperature hardener layer 5.5; a metal hose 6; an intake manifold 7; an air outlet collecting pipe 8; an emptying pipe 9; a hoop 10; and a reinforcing rib 11.
Detailed Description
Referring to fig. 1-3, the utility model relates to an air-cooled ultra-temperature flue flapper valve, including valve body 1, valve plate 2 and valve plate axle 3, parallel is equipped with a plurality of valve plate axles 3 in the valve body 1, the below of valve plate axle 3 is equipped with a supporting beam 4, a supporting beam 4 is perpendicular with 2 axles of valve plate.
The supporting beam 4 is arranged at the center of the valve plate shaft 3 in the length direction, the valve plate shafts 3 share one supporting beam 4, two valve plates 2 are arranged in the length direction of the valve plate shafts 3, the valve plates 2 are fixed on the valve plate shafts 3 through anchor ears 10, a space is reserved between the two valve plates 2 on one valve plate shaft 3 and used for accommodating the supporting beam 4, and the supporting beam 4 is ensured not to prevent the valve plate shafts 3 and the valve plates 2 on the valve plate shafts from rotating. The valve plate shaft 3 located at the space is in contact with the support beam 4, supporting the valve plate shaft 3.
The valve plate shaft 3 is a hollow shaft, one end of the valve plate shaft 3 is connected with an air inlet collecting pipe 7 through a metal hose 6, the other end of the valve plate shaft is connected with an air outlet collecting pipe 8 through the metal hose 6, the flexible metal hose 6 does not influence the rotation of the valve plate shaft 3, the air outlet collecting pipe 8 is connected with an air release pipe 9, cooling air is distributed by the air inlet collecting pipe 7 and then enters each valve plate shaft 3 to carry out air cooling on the valve plate shaft 3, the temperature of the valve plate shaft 3 is reduced to below 850 ℃, the heat intensity of the shaft is improved, the heat deformation of the shaft is reduced, and hot air (about 170 ℃) after heat exchange is converged by the air outlet collecting pipe 8 and then is discharged through the air release pipe 9.
The valve plate 2 is made of 314 or ZG40Cr25Ni35, the valve plate shaft 3 and the support beam 4 are made of high-temperature alloy material A-608 HP Nb, and the hoop 10 is made of ZG40Cr25Ni35.
The support beam 4 is also of a hollow structure, one end of the support beam 4 is connected with an air inlet collecting pipe 7, and the other end of the support beam is connected with an air outlet collecting pipe 8.
The joints of the valve body 1, the valve plate shaft 3 and the supporting beam 4 are provided with shaft end seals to prevent smoke leakage.
The air inlet collecting pipe 7 and the air outlet collecting pipe 8 are arranged outside the valve body 1.
The inner wall of the valve body 1 is provided with a heat insulation lining 5 all around, the heat insulation lining 5 sequentially comprises a first high-purity ceramic fiber blanket 5.1, a nanometer micropore heat insulation plate 5.2, a second high-purity ceramic fiber blanket 5.3 and a zirconium-containing ceramic fiber integral module 5.4 from outside to inside, and a high-temperature hardening agent layer 5.5 is arranged on the inner surface of the zirconium-containing ceramic fiber integral module 5.4, so that the heat conductivity coefficient is reduced, the heat loss is reduced, the heat insulation is better, the weight can be reduced, and the market demand is met.
In order to strengthen the strength of the valve plate 2, reinforcing ribs 11 are arranged at the middle part and two ends of the valve plate 2 in the length direction.
In addition to the above embodiments, the present invention also includes other embodiments, and all technical solutions formed by equivalent transformation or equivalent replacement should fall within the protection scope of the claims of the present invention.
Claims (8)
1. The utility model provides an air-cooled ultra-high temperature flue flapper valve, includes valve body (1), valve plate (2) and valve plate axle (3), parallel arrangement has a plurality of valve plate axles (3) in valve body (1), its characterized in that: valve plate axle (3) are the hollow shaft, the one end of valve plate axle (3) is passed through metal collapsible tube (6) and is connected inlet manifold (7), and the other end is connected outlet manifold (8) through metal collapsible tube (6), and the blow-down pipe (9) are connected in outlet manifold (8), valve plate axle (3) length direction's center below is equipped with a supporting beam (4), a supporting beam (4) of a plurality of valve plate axle (3) sharing.
2. The air-cooled ultra-high temperature flue flapper valve of claim 1, wherein: along valve plate axle (3) length direction, be equipped with two valve plates (2) on every valve plate axle (3), leave the space between two valve plates (2) on one valve plate axle (3), this space is used for holding a supporting beam (4), and valve plate axle (3) that are located the space department contact with a supporting beam (4).
3. The air-cooled ultra-high temperature flue flapper valve of claim 1, wherein: the support beam (4) is also of a hollow structure, one end of the support beam (4) is connected with the air inlet collecting pipe (7), and the other end of the support beam is connected with the air outlet collecting pipe (8).
4. The air-cooled ultrahigh temperature flue flapper valve of claim 1, wherein: the inner wall of the valve body (1) is provided with a heat-insulating lining (5) all around, the heat-insulating lining (5) sequentially comprises a first high-purity ceramic fiber blanket (5.1), a nanometer micropore heat-insulating plate (5.2), a second high-purity ceramic fiber blanket (5.3) and a zirconium-containing ceramic fiber integral module (5.4) from outside to inside, and a high-temperature hardening agent layer (5.5) is arranged on the inner surface of the zirconium-containing ceramic fiber integral module (5.4).
5. The air-cooled ultra-high temperature flue flapper valve of claim 1, wherein: and shaft end seals are arranged at the joints of the valve body (1), the valve plate shaft (3) and the supporting beam (4).
6. The air-cooled ultra-high temperature flue flapper valve of claim 1, wherein: the valve plate (2) is made of 314 or ZG40Cr25Ni35 materials and can be used under the working condition of 1200 ℃.
7. The air-cooled ultra-high temperature flue flapper valve of claim 1, wherein: the valve plate shaft (3) and the supporting beam (4) are made of high-temperature alloy material A-608 HP Nb.
8. The air-cooled ultrahigh-temperature flue flapper valve of claim 2, wherein: the valve plate (2) is fixed on the valve plate shaft (3) through an anchor ear (10), and the anchor ear (10) adopts ZG40Cr25Ni35.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222439009.5U CN218207850U (en) | 2022-09-15 | 2022-09-15 | Air-cooled ultra-high temperature flue damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222439009.5U CN218207850U (en) | 2022-09-15 | 2022-09-15 | Air-cooled ultra-high temperature flue damper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218207850U true CN218207850U (en) | 2023-01-03 |
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ID=84633724
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222439009.5U Active CN218207850U (en) | 2022-09-15 | 2022-09-15 | Air-cooled ultra-high temperature flue damper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218207850U (en) |
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2022
- 2022-09-15 CN CN202222439009.5U patent/CN218207850U/en active Active
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