CN220522872U - High temperature fan leak protection wind sealing device - Google Patents
High temperature fan leak protection wind sealing device Download PDFInfo
- Publication number
- CN220522872U CN220522872U CN202322196970.0U CN202322196970U CN220522872U CN 220522872 U CN220522872 U CN 220522872U CN 202322196970 U CN202322196970 U CN 202322196970U CN 220522872 U CN220522872 U CN 220522872U
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- ring
- sealing
- static
- sealing ring
- connecting ring
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- 238000007789 sealing Methods 0.000 title claims abstract description 220
- 230000003068 static effect Effects 0.000 claims abstract description 88
- 239000000945 filler Substances 0.000 claims abstract description 21
- 238000009413 insulation Methods 0.000 claims description 21
- 230000002265 prevention Effects 0.000 claims description 12
- 230000000694 effects Effects 0.000 abstract description 10
- 239000007789 gas Substances 0.000 description 13
- 238000009434 installation Methods 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- 230000001153 anti-wrinkle effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000002341 toxic gas Substances 0.000 description 1
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- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
Abstract
The utility model provides an anti-air leakage sealing device of a high-temperature fan, wherein a static ring comprises a static connecting ring and a static sealing ring, a first groove on the inner circular surface of the static connecting ring is embedded with sealing filler, the sealing filler is tightly contacted and sealed with a rotating shaft, and the static connecting ring is closely fixed on a device shell; the static sealing ring is fixedly sleeved on the static connecting ring; the movable ring comprises a movable connecting ring arranged along the radial direction and an inner sealing ring and an outer sealing ring arranged along the axial direction, wherein the movable connecting ring, the inner sealing ring and the outer sealing ring are connected to form a structure with the cross section in the shape of an inverse C, the inner sealing ring is fixedly sleeved on the rotating shaft, the static sealing ring is inserted between the inner sealing ring and the outer sealing ring, an inner sealing lip and an outer sealing lip are respectively arranged on the inner circular surface and the outer circular surface of the static sealing ring, and the inner sealing lip and the outer sealing lip are respectively in tight contact sealing with the inner sealing ring and the outer sealing ring. The sealing device can seal the rotating shaft of the high-temperature fan and the equipment shell, and has good sealing effect, long service life and good axial deflection resistance effect.
Description
Technical Field
The utility model relates to the technical field of mechanical sealing, in particular to an air leakage prevention sealing device of a high-temperature fan.
Background
Fans are machines that rely on input mechanical energy to increase gas pressure and discharge gas, and are widely used for ventilation, dust removal and cooling of factories, mines, tunnels, cooling towers, vehicles, ships and buildings, ventilation and air induction of boilers and industrial furnaces and kilns, and the like.
The high-temperature fan belongs to a special fan, is mainly used for high-temperature operation, and can cause the efficiency reduction of the high-temperature fan and the safety accidents such as gas burning and the like if gas leakage occurs during the operation of the high-temperature fan. Moreover, the conventional air medium conveying technology is developed into various properties of high-temperature gas mediums, such as inflammable and explosive toxic gas and the like, so that once leakage occurs, the air medium is polluted, and even the personal safety is threatened. Therefore, high requirements are put on the tightness of the high-temperature fan, and particularly the sealing of the rotating shaft of the high-temperature fan and the shaft at the equipment shell becomes a key and difficult point of sealing. In addition, the rotating shaft of the high-temperature fan can axially float in the rotating process, so that high requirements are also put on the axial deflection resistance of the sealing device.
Disclosure of Invention
The utility model provides an anti-leakage sealing device for a high-temperature fan, which can seal the position between a rotating shaft of the high-temperature fan and a device shell, prevents high-temperature gas media in the fan from leaking, and has the advantages of good sealing effect, convenience in installation, long service life and good axial deflection resistance effect.
The technical scheme for realizing the purpose of the utility model is as follows:
the utility model provides a high temperature fan leak protection wind sealing device installs between high temperature fan's rotation axis and equipment casing, and the rotation axis wears out and revolves around the equipment casing in the equipment casing, high temperature fan leak protection wind sealing device includes:
the static ring comprises a static connecting ring and a static sealing ring, the cross section of the static connecting ring is rectangular, more than one annular first groove is distributed on the inner circular surface of the static connecting ring, sealing filler is embedded in the first groove and protrudes from the first groove, the static connecting ring is sleeved on the rotating shaft, the sealing filler is tightly contacted and sealed with the rotating shaft, and the static connecting ring is attached to and fixed on the side wall of the equipment shell; the static sealing ring is arranged along the axial direction and fixedly sleeved on the outer circular surface of the static connecting ring;
the movable ring is located one side of keeping away from the equipment shell, the movable ring comprises a movable connecting ring arranged along the radial direction and an inner sealing ring and an outer sealing ring arranged along the axial direction, the movable connecting ring, the inner sealing ring and the outer sealing ring are connected to form a structure with the cross section in the shape of an inverse C, the inner sealing ring is fixedly sleeved on the rotating shaft, the movable ring integrally rotates along with the rotating shaft, the static sealing ring is inserted between the inner sealing ring and the outer sealing ring, an inner sealing lip and an outer sealing lip are respectively arranged on the inner circular surface and the outer circular surface of the static sealing ring, the inner sealing lip and the outer sealing lip are obliquely arranged, and the inner sealing lip and the outer sealing lip are respectively sealed in tight contact with the inner sealing ring and the outer sealing ring.
The side surface of the static connecting ring, which is close to the equipment shell, is embedded with a ring-shaped radial heat insulation plate, the radial heat insulation plate is fixed by being abutted against the equipment shell, and the radial heat insulation plate is tightly contacted and sealed with the rotating shaft.
The static connecting ring, the radial heat insulation plate and the equipment shell are fixedly connected through fixing bolts.
An annular axial heat insulation plate is sleeved between the static connecting ring and the static sealing ring, the axial sealing plate is fixedly sleeved on the outer circular surface of the static connecting ring, and the static sealing ring is fixedly sleeved on the outer circular surface of the axial heat insulation plate.
And a clamp is arranged on the outer circular surface of the static sealing ring to clamp the static sealing ring.
More than one annular second groove is distributed on the inner circular surface of the inner sealing ring, a sealing ring is installed in the second groove, the sealing ring protrudes out of the first groove, and when the inner sealing ring is fixedly sleeved on the rotating shaft, the sealing ring is tightly sleeved on the rotating shaft.
The inner circular surface of the static sealing ring at least comprises two inner sealing lips with opposite inclined directions, and the outer circular surface of the static sealing ring at least comprises two outer sealing lips with opposite inclined directions.
The static connecting ring is of an open type structure, an ear plate is arranged at the opening of the static connecting ring, a bolt hole is formed in the ear plate, and a connecting bolt is arranged in the bolt hole, so that the static connecting ring is locked, and sealing filler is tightly contacted with the rotating shaft for sealing.
The movable ring is of an open type structure, one side of the movable connecting ring, far away from the equipment shell, and the inner sealing ring are provided with lug plates at the opening, bolt holes are formed in the lug plates, and connecting bolts are arranged in the bolt holes, so that the movable ring is connected into a whole, and the movable connecting ring is connected and fixed on the rotating shaft.
And an oil filling hole is axially formed in the movable connecting ring.
Compared with the prior art, the sealing device provided by the utility model has the following advantages: 1. the high-temperature fan air leakage prevention sealing device provided by the utility model can seal the rotating shaft of the high-temperature fan and the equipment shell, the static sealing ring of the sealing device is inserted between the inner sealing ring and the outer sealing ring to form a tortuous labyrinth sealing cavity, and meanwhile, the outer sealing lip and the inner sealing lip on the static sealing ring are respectively contacted and sealed with the inner sealing ring and the outer sealing ring, so that the sealing effect is good, and the leakage of a high-temperature gas medium can be avoided.
2. The inner circular surface of the static connecting ring is provided with the sealing filler, the sealing filler is tightly contacted with the rotating shaft for sealing, the sealing cavity can be directly isolated from the internal environment of the fan, high-temperature gas medium is prevented from directly entering the sealing cavity, the side surface of the static connecting ring, which is close to the equipment shell, is provided with the radial heat insulation plate, heat can be reduced from being directly dissipated into the sealing cavity, and the sealing device has long service life.
3. According to the utility model, the axial heat insulation plate is arranged between the static connecting ring and the static sealing ring, so that the condition that a small amount of high-temperature gas medium enters the sealing cavity to form a heat channel between the static connecting ring and the static sealing ring, thereby generating air leakage is further avoided.
4. The static connecting ring and the movable ring are of an open structure, so that the sealing device is convenient to install, pressure is conveniently applied to the sealing filler and the sealing ring, the effectiveness of sealing is ensured, and even if the rotating shaft axially moves, the sealing filler and the sealing ring are always in tight contact with the rotating shaft for sealing; and meanwhile, the clamp is arranged on the outer circular surface of the static sealing ring, so that the static sealing ring is clamped, and the axial deflection resistance of the sealing device is further improved.
Drawings
FIG. 1 is a schematic diagram of the whole structure of the high temperature fan anti-leakage sealing device provided by the utility model;
in the figure: 1-equipment shell, 2-rotation shaft, 3-static connecting ring, 4-static sealing ring, 5-sealing filler, 6-lug plate, 7-connecting bolt, 8-radial heat insulation plate, 9-fixing bolt, 10-axial sealing plate, 11-clamp, 12-movable connecting ring, 13-inner sealing ring, 14-outer sealing ring, 15-inner sealing lip, 16-outer sealing lip, 17-sealing ring and 18-oil filler hole.
Detailed Description
The present utility model will be described in detail with reference to the accompanying drawings, but the scope of the present utility model is not limited to the following examples.
The structure of the high-temperature fan anti-leakage sealing device provided by the embodiment is shown in fig. 1, and the high-temperature fan anti-leakage sealing device is arranged between a rotating shaft 2 of the high-temperature fan and an equipment shell 1, and the rotating shaft penetrates out of the equipment shell and rotates around the equipment shell. The high-temperature fan air leakage prevention sealing device in the embodiment comprises a static ring and a dynamic ring.
The stationary ring comprises a stationary connecting ring 3 and a stationary sealing ring 4. The cross-section of quiet go-between is the rectangle, and the distribution is provided with more than one and is annular first recess on quiet go-between's the interior round surface, and first recess is embedded to be equipped with sealing filler 5, and sealing filler is protruding from first recess in, and in this embodiment, first recess is provided with two, and sealing filler corresponds to be provided with two. The static connecting ring is sleeved on the rotating shaft and enables the sealing filler to be tightly contacted and sealed with the rotating shaft, in the embodiment, the static connecting ring is of an open type structure, an ear plate 6 is arranged at the opening of the static connecting ring, a bolt hole is formed in the ear plate, and a connecting bolt 7 is arranged in the bolt hole, so that the static connecting ring is locked and enables the sealing filler to be tightly contacted and sealed with the rotating shaft, and the static connecting ring is convenient to install.
In addition, the static connecting ring is fixed on the side wall of the equipment shell in an abutting mode, the annular radial heat insulation plate 8 is embedded on the side face, close to the equipment shell, of the static connecting ring in the embodiment, the radial heat insulation plate is fixed with the equipment shell in an abutting mode, the radial heat insulation plate is tightly contacted with the rotating shaft to be sealed, and therefore the fact that high-temperature gas media in the high-temperature fan directly impact the sealing device to influence the service life of the sealing device is avoided. Specifically, the static connecting ring, the radial heat insulation plate and the equipment shell are fixedly connected together through fixing bolts 9, and the static connecting ring, the radial heat insulation plate and the equipment shell are shown in fig. 1. And the sealing filler is firmly connected with the rotating shaft, and even if the rotating shaft axially moves, the sealing filler is always in tight contact with and seals with the rotating shaft.
In this embodiment, the outer circumferential surface of the static connecting ring is fixedly sleeved with an axial sealing plate 10, so that a small amount of high-temperature gas medium is prevented from entering the sealing cavity, and a thermal channel is formed between the static connecting ring and the static sealing ring, so that air leakage occurs. The static sealing ring is axially arranged, the static sealing ring is fixedly sleeved on the outer circular surface of the axial heat insulation plate, and the clamp 11 is arranged on the outer circular surface of the static sealing ring in the embodiment to clamp the static sealing ring, so that the axial deflection resistance of the sealing device is further improved.
In this embodiment, the moving ring is located the side that the quiet ring kept away from the equipment casing, and the moving ring includes along radial movable coupling ring 12 that sets up and along interior sealing ring 13 and the outer sealing ring 14 that set up of axial, and the three is connected to be the structure that the cross-section is anti-C style of calligraphy, interior sealing ring fixed cover is on the rotation axis, makes the moving ring whole rotatory along with the rotation axis, and quiet sealing ring alternates between interior sealing ring and outer sealing ring, forms tortuous sealed chamber. And inner sealing lips 15 and outer sealing lips 16 are respectively arranged on the inner circular surface and the outer circular surface of the static sealing ring, the inner sealing lips and the outer sealing lips are obliquely arranged, and the inner sealing lips and the outer sealing lips are respectively in tight contact with and seal with the inner sealing ring and the outer sealing ring, in the embodiment, the inner circular surface of the static sealing ring at least comprises two inner sealing lips with opposite oblique directions, and the outer circular surface of the static sealing ring at least comprises two outer sealing lips with opposite oblique directions, as shown in figure 1. The labyrinth seal and the contact seal are used for further sealing, so that the sealing effect is good, and even if a small amount of high-temperature gas medium enters the sealing cavity, the gas medium cannot leak into the air.
Specifically, be provided with more than one on the interior round surface of interior sealing ring and be annular second recess, install sealing washer 17 in the second recess, the sealing washer is protruding from first recess, the sealing washer is O type elastic seal circle, when interior sealing ring fixed cover is on the rotation axis, the sealing washer compresses tightly the cover on the rotation axis, can see from figure 1 that the sealing washer is collapsed, the cross-section is oval, under the elasticity effect of sealing washer, the sealing washer is sealed with rotation axis in close contact all the time, the sealing washer also can play the effect of location moreover, avoid the movable ring to take place axial drunkenness.
Further, the movable ring is also of an open type structure, one side of the movable connecting ring, far away from the equipment shell, and the inner sealing ring are also provided with lug plates at the opening, bolt holes are formed in the lug plates, and connecting bolts are arranged in the bolt holes, so that the movable ring is connected into a whole and is fixedly connected to the rotating shaft, pressure is applied to the sealing ring during convenient installation, the installation is stable, the anti-wrinkle wandering effect is good, and the sealing effect is good.
In this embodiment, the movable connecting ring is provided with an oil filling hole 18 in the axial direction, and grease is filled periodically to lubricate the sealing device.
Claims (10)
1. The utility model provides a high temperature fan leak protection air sealing device installs between high temperature fan's rotation axis and equipment casing, and the rotation axis wears out and winds equipment casing rotation in the equipment casing, its characterized in that: the high temperature fan leak protection wind sealing device includes:
the static ring comprises a static connecting ring and a static sealing ring, the cross section of the static connecting ring is rectangular, more than one annular first groove is distributed on the inner circular surface of the static connecting ring, sealing filler is embedded in the first groove and protrudes from the first groove, the static connecting ring is sleeved on the rotating shaft, the sealing filler is tightly contacted and sealed with the rotating shaft, and the static connecting ring is attached to and fixed on the side wall of the equipment shell; the static sealing ring is arranged along the axial direction and fixedly sleeved on the outer circular surface of the static connecting ring;
the movable ring is located one side of keeping away from the equipment shell, the movable ring comprises a movable connecting ring arranged along the radial direction and an inner sealing ring and an outer sealing ring arranged along the axial direction, the movable connecting ring, the inner sealing ring and the outer sealing ring are connected to form a structure with the cross section in the shape of an inverse C, the inner sealing ring is fixedly sleeved on the rotating shaft, the movable ring integrally rotates along with the rotating shaft, the static sealing ring is inserted between the inner sealing ring and the outer sealing ring, an inner sealing lip and an outer sealing lip are respectively arranged on the inner circular surface and the outer circular surface of the static sealing ring, the inner sealing lip and the outer sealing lip are obliquely arranged, and the inner sealing lip and the outer sealing lip are respectively sealed in tight contact with the inner sealing ring and the outer sealing ring.
2. The high temperature fan leakage prevention sealing device according to claim 1, wherein: the side surface of the static connecting ring, which is close to the equipment shell, is embedded with a ring-shaped radial heat insulation plate, the radial heat insulation plate is fixed by being abutted against the equipment shell, and the radial heat insulation plate is tightly contacted and sealed with the rotating shaft.
3. The high temperature fan leakage prevention sealing device according to claim 2, wherein: the static connecting ring, the radial heat insulation plate and the equipment shell are fixedly connected through fixing bolts.
4. The high temperature fan leakage prevention sealing device according to claim 1, wherein: an annular axial heat insulation plate is sleeved between the static connecting ring and the static sealing ring, the axial sealing plate is fixedly sleeved on the outer circular surface of the static connecting ring, and the static sealing ring is fixedly sleeved on the outer circular surface of the axial heat insulation plate.
5. The high temperature fan leakage prevention sealing device according to claim 1, wherein: and a clamp is arranged on the outer circular surface of the static sealing ring to clamp the static sealing ring.
6. The high temperature fan leakage prevention sealing device according to claim 1, wherein: more than one annular second groove is distributed on the inner circular surface of the inner sealing ring, a sealing ring is installed in the second groove, the sealing ring protrudes out of the first groove, and when the inner sealing ring is fixedly sleeved on the rotating shaft, the sealing ring is tightly sleeved on the rotating shaft.
7. The high temperature fan leakage prevention sealing device according to claim 1, wherein: the inner circular surface of the static sealing ring at least comprises two inner sealing lips with opposite inclined directions, and the outer circular surface of the static sealing ring at least comprises two outer sealing lips with opposite inclined directions.
8. The high temperature fan leakage prevention sealing device according to claim 1, wherein: the static connecting ring is of an open type structure, an ear plate is arranged at the opening of the static connecting ring, a bolt hole is formed in the ear plate, and a connecting bolt is arranged in the bolt hole, so that the static connecting ring is locked, and sealing filler is tightly contacted with the rotating shaft for sealing.
9. The high temperature fan leakage prevention sealing device according to claim 1, wherein: the movable ring is of an open type structure, one side of the movable connecting ring, far away from the equipment shell, and the inner sealing ring are provided with lug plates at the opening, bolt holes are formed in the lug plates, and connecting bolts are arranged in the bolt holes, so that the movable ring is connected into a whole, and the movable connecting ring is connected and fixed on the rotating shaft.
10. The high temperature fan leakage prevention sealing device according to claim 1, wherein: and an oil filling hole is axially formed in the movable connecting ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322196970.0U CN220522872U (en) | 2023-08-16 | 2023-08-16 | High temperature fan leak protection wind sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322196970.0U CN220522872U (en) | 2023-08-16 | 2023-08-16 | High temperature fan leak protection wind sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220522872U true CN220522872U (en) | 2024-02-23 |
Family
ID=89939721
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322196970.0U Active CN220522872U (en) | 2023-08-16 | 2023-08-16 | High temperature fan leak protection wind sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220522872U (en) |
-
2023
- 2023-08-16 CN CN202322196970.0U patent/CN220522872U/en active Active
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