CN216643271U - Novel valve seat of air-powder regulating valve for boiler air-powder pipeline - Google Patents
Novel valve seat of air-powder regulating valve for boiler air-powder pipeline Download PDFInfo
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- CN216643271U CN216643271U CN202123083833.3U CN202123083833U CN216643271U CN 216643271 U CN216643271 U CN 216643271U CN 202123083833 U CN202123083833 U CN 202123083833U CN 216643271 U CN216643271 U CN 216643271U
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Abstract
The utility model relates to a novel valve seat of an air-powder regulating valve for an air-powder pipeline of a boiler, which comprises: the dust-removing valve comprises a valve seat body, a valve seat driving connecting flange, a bearing, a dust-preventing sealing ring, a main shaft, a bearing outer retaining ring, a high-temperature-resistant dust-preventing sealing ring, a sealing shaft sleeve, a wedge-shaped shaft sealing ring, an O-shaped sealing ring, a supporting plate, a valve plate and a dust-removing cavity, wherein one end of the valve seat body is connected with an electric actuator through the valve seat driving connecting flange, the other end of the valve seat body is connected with a wind powder regulating valve body through the supporting plate, one end of the main shaft is connected with the electric actuator, the other end of the main shaft sequentially penetrates through the valve seat driving connecting flange, the valve seat body, the sealing shaft sleeve, the supporting plate and the wind powder regulating valve body to be connected with the valve plate, and the dust-removing cavity is arranged between the sealing shaft sleeve and the valve seat body; the utility model has the advantages that: adopt split type sealing area and disk seat district, it is more convenient not only in the change, can effectually solve a small amount of powder granule moreover and break through the problem in sealing area.
Description
Technical Field
The utility model relates to the technical field of powder making systems, in particular to a novel valve seat of an air-powder regulating valve for an air-powder pipeline of a boiler.
Background
The air-powder regulating valve is an important part for regulating the powder supply flow in the pipeline, as the pipeline for conveying the air powder is filled with a large amount of fine powder particles, the particle fineness R90 is less than 15%, the air pressure reaches 15KPa in the conveying process, the speed exceeds 30m/s, and the temperature can reach 100 ℃, under the condition, as the bearing seat of the old regulating valve driving shaft is of an integrated structure, when the powder particles break through seals at all levels, the powder particles can directly enter the bearing, so that the bearing balls are filled with the powder particles, the bearing fails, the driving shaft is blocked, and the main shaft cannot rotate.
SUMMERY OF THE UTILITY MODEL
In view of the above problems, it is an object of the present invention to provide a novel valve seat for a boiler air-powder regulating valve, which is used to prolong the service life of the valve seat, so as to overcome the above disadvantages of the prior art.
The utility model provides a novel valve seat of an air and powder regulating valve for a boiler air and powder pipeline, which comprises: connect the disk seat of wind powder governing valve body and electric actuator shell, the disk seat includes: the dust-proof valve comprises a valve seat body, a valve seat driving connecting flange, a bearing, a dust-proof sealing ring, a main shaft, a bearing outer retaining ring, a high-temperature-resistant dust-proof sealing ring, a sealing shaft sleeve, a wedge-shaped shaft sealing ring, an O-shaped sealing ring, a supporting plate, a valve plate and a dust exhaust cavity, wherein one end of the valve seat body is connected with an electric actuator through the valve seat driving connecting flange, the other end of the valve seat body is connected with a wind powder regulating valve body through the supporting plate, one end of the main shaft is connected with the electric actuator, the other end of the main shaft sequentially penetrates through the valve seat driving connecting flange, the valve seat body, the sealing shaft sleeve, the supporting plate and the wind powder regulating valve body to be connected with the valve plate, the electric actuator drives the valve plate to rotate in the wind powder regulating valve body through the main shaft, one end of the sealing shaft sleeve penetrates through the supporting plate to be installed in the wind powder regulating valve body, and the other end of the sealing shaft sleeve is supported on the valve seat body, the dust exhaust cavity is arranged between the sealing shaft sleeve and the valve seat body, the dustproof sealing ring, the bearing, the high-temperature-resistant dustproof sealing ring, the wedge-shaped shaft sealing ring and the O-shaped sealing ring are sequentially sleeved on the main shaft, the dustproof sealing ring is located in the valve seat driving connection flange, the bearing and the high-temperature-resistant dustproof sealing ring are located in the valve seat body, the wedge-shaped shaft sealing ring and the O-shaped sealing ring are located in the sealing shaft sleeve, and the bearing outer retaining ring is sleeved on the main shaft and located between the two bearings.
Preferably, the valve seat body is hollow and cylindrical, the bolt mounting seats protrude from two ends of the valve seat body, the valve seat body is fixedly connected with the shell of the electric actuator and the support plate through bolts respectively, a concave edge clamped with the sealing shaft sleeve is arranged at one end, close to the sealing shaft sleeve, of the interior of the valve seat body, and the dust exhaust cavity is located between the concave edge and the high-temperature-resistant dustproof sealing ring.
Preferably, the dustproof sealing ring and the high-temperature resistant dustproof sealing ring are respectively sleeved on the main shafts at two sides of the bearing, and the high-temperature resistant dustproof sealing ring is arranged at one side close to the supporting plate.
Preferably, the group of O-shaped sealing rings consists of at least three O-shaped sealing rings, and the O-shaped sealing rings are positioned on two sides of the wedge-shaped shaft sealing ring.
The utility model has the advantages and positive effects that:
1. according to the utility model, the external dust exhaust cavity is designed between the sealing area consisting of the sealing shaft sleeve, the wedge-shaped shaft sealing ring and the O-shaped sealing ring and the valve seat body, even if a small amount of powder particles break through the sealing area, the powder particles can be directly exhausted to the outside from the dust exhaust cavity and cannot enter the bearing area of the main shaft, so that the service life of the driving bearing system is greatly prolonged, and the problem of the sealing system can be found in time by watching through the external dust exhaust cavity.
2. The air-powder regulating valve body adopts the split type sealing area and the valve seat area, so that the air-powder regulating valve is more convenient to replace, and the problem that a small amount of powder particles break through the sealing area can be effectively solved.
3. The sealing area of the utility model consists of a sealing shaft sleeve, a wedge-shaped shaft sealing ring and an O-shaped sealing ring, and the O-shaped sealing ring is sealed in a combined mode, so that the sealing effect can be further improved.
Drawings
Other objects and results of the present invention will become more apparent and more readily appreciated as the same becomes better understood by reference to the following description taken in conjunction with the accompanying drawings. In the drawings:
fig. 1 is a schematic overall structure diagram according to an embodiment of the present invention.
Reference numerals: the valve seat comprises a valve seat body 1, a valve seat driving connecting flange 2, a bearing 4, a dustproof sealing ring 5, a main shaft 6, a bearing outer baffle ring 8, a high-temperature-resistant dustproof sealing ring 9, a sealing shaft sleeve 10, a wedge-shaped shaft sealing ring 11, an O-shaped sealing ring 12, a supporting plate 14, a valve plate 16, a dust exhaust cavity 17 and bolts 3, 7 and 15.
Detailed Description
In the following description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of one or more embodiments. It may be evident, however, that such embodiment(s) may be practiced without these specific details. In other instances, well-known structures and devices are shown in block diagram form in order to facilitate describing one or more embodiments.
Fig. 1 shows a schematic overall structure according to an embodiment of the present invention.
As shown in fig. 1, the novel valve seat of the air-powder regulating valve for the boiler air-powder pipeline provided by the embodiment of the utility model comprises: connect the disk seat of wind powder governing valve body and electric actuator shell, the disk seat includes: the dust-proof valve comprises a valve seat body 1, a valve seat driving connecting flange 2, a bearing 4, a dust-proof sealing ring 5, a main shaft 6, a bearing outer retaining ring 8, a high-temperature-resistant dust-proof sealing ring 9, a sealing shaft sleeve 10, a wedge-shaped shaft sealing ring 11, an O-shaped sealing ring 12, a supporting plate 14, a valve plate 16 and a dust exhaust cavity 17, wherein one end of the valve seat body 1 is fixedly connected with the valve seat driving connecting flange 2 through a bolt 3, the valve seat driving connecting flange 2 is fixedly connected with an electric actuator shell, the other end of the valve seat body 2 is fixedly connected with the supporting plate 14 through a bolt 13, the supporting plate 14 is connected with a wind powder regulating valve body through a bolt 15, one end of the main shaft 4 is connected with the electric actuator, the other end of the main shaft 4 sequentially penetrates through the valve seat driving connecting flange 2, the valve seat body 1, the sealing shaft sleeve 10, the supporting plate 14 and the wind powder regulating valve body to be connected with the valve plate 16, the electric actuator drives the valve plate 16 to rotate in the wind powder regulating valve body through the main shaft 6, the one end of sealed axle sleeve 10 passes backup pad 14 and installs in the wind powder governing valve body, the other end top of sealed axle sleeve 10 is held on disk seat body 1, be provided with between sealed axle sleeve 10 and the disk seat body 1 dust exhaust cavity 17, dustproof sealing ring 5, bearing 4, high temperature resistant dustproof sealing ring 9, wedge type axle sealing ring 11, O type sealing ring 12 suit are in proper order on main shaft 6, dustproof sealing ring 5 is located disk seat drive hookup flange 2, bearing 4 and high temperature resistant dustproof sealing ring 9 are located disk seat body 1, wedge type axle sealing ring 11, O type sealing ring 12 are located sealed axle sleeve 10, bearing outer fender ring 8 suit is on main shaft 6 and is located between two bearings 4.
The valve seat body 1 in this embodiment is a hollow cylinder, the bolt mounting seats protrude from the two ends of the valve seat body 1, the valve seat body 1 is fixedly connected with the electric actuator shell and the supporting plate 14 through bolts respectively, a concave edge clamped with the sealing shaft sleeve 10 is arranged at one end, close to the sealing shaft sleeve 10, of the inside of the valve seat body 1, and the dust exhaust cavity 17 is located between the concave edge and the high-temperature-resistant dust seal ring 9. The dustproof sealing ring 5 and the high-temperature-resistant dustproof sealing ring 9 are respectively sleeved on the main shafts 6 on two sides of the bearing 4, and the high-temperature-resistant dustproof sealing ring 9 is arranged on one side close to the supporting plate 14. The group of O-shaped sealing rings 12 consists of at least three O-shaped sealing rings 12, and the O-shaped sealing rings 12 are positioned on two sides of the wedge-shaped shaft sealing ring 11.
The working principle is as follows: connect wind powder governing valve body and electric actuator shell through the disk seat, electric actuator passes through main shaft 6 and the valve plate 16 of disk seat body 1 inside and is connected and drive the valve plate 16 and rotate, through sealed axle sleeve 10 and tapered shaft sealing ring 11, O type sealing ring 12 constitutes the seal land, through disk seat body 1, main shaft 6, bearing zone is constituteed to bearing 4, a foreign dust exhaust cavity 17 has been designed through the seal land and the bearing zone of split, even make there be a small amount of powder granule to break through the seal land, also can directly arrange the outside, can not get into the bearing zone of main shaft 6, the life who drives bearing system like this is very prolonged, and through this foreign dust exhaust cavity 17, can in time discover sealing system's problem, change.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (4)
1. The utility model provides a novel disk seat of wind powder governing valve for boiler wind powder pipeline, includes: connect the disk seat of wind powder governing valve body and electric actuator shell, its characterized in that, the disk seat includes: the dust-proof valve comprises a valve seat body, a valve seat driving connecting flange, a bearing, a dust-proof sealing ring, a main shaft, a bearing outer retaining ring, a high-temperature-resistant dust-proof sealing ring, a sealing shaft sleeve, a wedge-shaped shaft sealing ring, an O-shaped sealing ring, a supporting plate, a valve plate and a dust exhaust cavity, wherein one end of the valve seat body is connected with an electric actuator through the valve seat driving connecting flange, the other end of the valve seat body is connected with a wind powder regulating valve body through the supporting plate, one end of the main shaft is connected with the electric actuator, the other end of the main shaft sequentially penetrates through the valve seat driving connecting flange, the valve seat body, the sealing shaft sleeve, the supporting plate and the wind powder regulating valve body to be connected with the valve plate, the electric actuator drives the valve plate to rotate in the wind powder regulating valve body through the main shaft, one end of the sealing shaft sleeve penetrates through the supporting plate to be installed in the wind powder regulating valve body, and the other end of the sealing shaft sleeve is supported on the valve seat body, the dust exhaust cavity is arranged between the sealing shaft sleeve and the valve seat body, the dustproof sealing ring, the bearing, the high-temperature-resistant dustproof sealing ring, the wedge-shaped shaft sealing ring and the O-shaped sealing ring are sequentially sleeved on the main shaft, the dustproof sealing ring is located in the valve seat driving connection flange, the bearing and the high-temperature-resistant dustproof sealing ring are located in the valve seat body, the wedge-shaped shaft sealing ring and the O-shaped sealing ring are located in the sealing shaft sleeve, and the bearing outer retaining ring is sleeved on the main shaft and located between the two bearings.
2. The novel valve seat of the air and powder regulating valve for the air and powder pipeline of the boiler according to claim 1, wherein the valve seat body is cylindrical and hollow inside, bolt mounting seats are protruded from two ends of the valve seat body, the valve seat body is fixedly connected with an electric actuator shell and a supporting plate through bolts respectively, a concave edge clamped with the sealing shaft sleeve is arranged at one end, close to the sealing shaft sleeve, of the inside of the valve seat body, and the dust exhaust cavity is located between the concave edge and the high-temperature-resistant dustproof sealing ring.
3. The novel valve seat of the air and powder adjusting valve for the air and powder pipeline of the boiler according to claim 1, wherein the dustproof sealing ring and the high-temperature resistant dustproof sealing ring are respectively sleeved on the main shaft at two sides of the bearing, and the high-temperature resistant dustproof sealing ring is arranged at one side close to the supporting plate.
4. The novel valve seat of the air and powder adjusting valve for the boiler air and powder pipeline, according to claim 1, is characterized in that a group of O-shaped sealing rings consists of at least three O-shaped sealing rings, and the O-shaped sealing rings are positioned on two sides of a wedge-shaped shaft sealing ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123083833.3U CN216643271U (en) | 2021-12-09 | 2021-12-09 | Novel valve seat of air-powder regulating valve for boiler air-powder pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123083833.3U CN216643271U (en) | 2021-12-09 | 2021-12-09 | Novel valve seat of air-powder regulating valve for boiler air-powder pipeline |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216643271U true CN216643271U (en) | 2022-05-31 |
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ID=81740028
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123083833.3U Active CN216643271U (en) | 2021-12-09 | 2021-12-09 | Novel valve seat of air-powder regulating valve for boiler air-powder pipeline |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216643271U (en) |
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2021
- 2021-12-09 CN CN202123083833.3U patent/CN216643271U/en active Active
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