CN220581728U - Pulverized coal feeding control valve for power plant - Google Patents
Pulverized coal feeding control valve for power plant Download PDFInfo
- Publication number
- CN220581728U CN220581728U CN202322245220.8U CN202322245220U CN220581728U CN 220581728 U CN220581728 U CN 220581728U CN 202322245220 U CN202322245220 U CN 202322245220U CN 220581728 U CN220581728 U CN 220581728U
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- valve body
- pulverized coal
- sealing
- power plant
- ring
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- 239000003245 coal Substances 0.000 title claims abstract description 29
- 238000007789 sealing Methods 0.000 claims abstract description 67
- 239000007787 solid Substances 0.000 claims abstract description 13
- 230000000694 effects Effects 0.000 abstract description 8
- 238000012423 maintenance Methods 0.000 abstract description 5
- 230000005540 biological transmission Effects 0.000 abstract description 2
- 238000009434 installation Methods 0.000 description 2
- 238000010030 laminating Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002817 coal dust Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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Abstract
The utility model relates to the technical field of pulverized coal transmission and discloses a pulverized coal feed control valve of a power plant, which comprises a valve body and a ball body rotating in the valve body, wherein inner walls of a feed end and a discharge end of the valve body are fixedly connected with an internal thread connecting ring, the internal thread connecting ring and the valve body are integrally arranged, the inner wall of the internal thread connecting ring is in threaded connection with a fixed ring, and a sealing element is arranged between the ball body and the fixed ring; this kind of novel be applied to power plant's buggy feed control valve, through setting up sealing member and solid fixed ring, can avoid inside buggy to enter into between spheroid and the valve body through the sealing member, and can extrude the sealing member in the valve body through solid fixed ring, improve sealed effect, and just can change the sealing member after dismantling solid fixed ring, advance the maintenance of later stage convenient, and sealed effectual.
Description
Technical Field
The utility model relates to the technical field of pulverized coal transmission, in particular to a pulverized coal feed control valve of a power plant.
Background
When the coal is burned in the power plant, the pulverized coal ground by the coal mill is input into the boiler through a pulverized coal distribution valve on the air pipe; at present, in a pipeline for conveying pulverized coal, a special pneumatic pulverized coal ball valve is required to be used for carrying out flowing or intercepting operation on pulverized coal conveying, and a sealing ring is generally inlaid in a valve seat sealing ring groove to form a sealing structure of a ball core and a valve body.
However, the sealing ring is worn or the spring pressure is insufficient, so that the pneumatic pulverized coal ball valve leaks, a large amount of pulverized coal is accumulated between the ball core and the valve body, the opening and closing torque of the pneumatic pulverized coal ball valve is increased, the pneumatic pulverized coal ball valve is seriously blocked, the normal work of the pneumatic pulverized coal ball valve is influenced, the later replacement and maintenance are inconvenient, and the maintenance cost is high.
In order to solve the problems, the application provides a pulverized coal feed control valve for a power plant.
Disclosure of Invention
Aiming at the defects of the prior art, the utility model provides a pulverized coal feed control valve for a power plant, which is used for solving at least one of the problems presented by the background art.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a pulverized coal feed control valve of power plant, includes the valve body and rotates the spheroid inside the valve body, the inner wall fixedly connected with internal thread go-between of feed end and the discharge end of valve body, internal thread go-between sets up as an organic wholely with the valve body, the inner wall threaded connection of internal thread go-between has solid fixed ring, is located be provided with the sealing member between spheroid and the solid fixed ring.
The utility model is further technically improved in that the inner wall of the valve body is provided with a clamping groove, the sealing piece comprises a sealing ring, the outer side end of the sealing ring is fixedly connected with a clamping strip matched with the clamping groove, and the clamping strip and the sealing ring are integrally arranged.
The utility model further technically improves that the sealing ring is fixedly connected with a sealing strip close to the side wall of the sphere.
The utility model further technically improves that the outer side wall of the fixing ring is fixedly connected with a plurality of auxiliary rods, and the auxiliary rods are arranged at equal intervals.
The utility model further technically improves that the outer end face of the sealing ring is attached to the inner end face of the fixing ring, and the upper end face of the fixing ring is arranged flush with the passage opening of the sphere.
The sealing strip is arranged at the middle position of the inner side of the sealing ring.
The embodiment of the utility model provides a pulverized coal feed control valve for a power plant, which has the following beneficial effects:
this kind of novel be applied to power plant's buggy feed control valve, through setting up sealing member and solid fixed ring, can avoid inside buggy to enter into between spheroid and the valve body through the sealing member, and can extrude the sealing member in the valve body through solid fixed ring, improve sealed effect, and just can change the sealing member after dismantling solid fixed ring, advance the maintenance of later stage convenient, and sealed effectual.
Drawings
The accompanying drawings are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the embodiments of the utility model, serve to explain the utility model.
FIG. 1 is a schematic view of an overall structure of the present utility model;
FIG. 2 is a schematic view of a partial cross-sectional structure of the lower end of the valve body of the present utility model;
FIG. 3 is a schematic view of the seal ring and the fixing ring of the present utility model.
In the figure: 1. a valve body; 2. a sphere; 3. an internally threaded connecting ring; 4. a fixing ring; 5. a seal ring; 6. a clamping groove; 7. clamping strips; 8. a sealing strip; 9. an auxiliary rod.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1-3, a pulverized coal feed control valve for a power plant comprises a valve body 1 and a ball body 2 rotating in the valve body 1, wherein inner walls of a feed end and a discharge end of the valve body 1 are fixedly connected with an inner threaded connecting ring 3, the inner threaded connecting ring 3 and the valve body 1 are integrally arranged, the inner wall of the inner threaded connecting ring 3 is in threaded connection with a fixed ring 4, and a sealing element is arranged between the ball body 2 and the fixed ring 4.
Specific working principle and implementation mode: the inner wall of the internal thread connecting ring 3 and the inner wall of the valve body 1 are integrally formed, so that the firmness of the internal thread connecting ring 3 is high, the wear resistance is good, the internal thread of the internal thread connecting ring 3 is connected with the fixing ring 4, the fixing ring 4 can be freely detached and is convenient to operate, a sealing piece is arranged between the internal thread connecting ring 3 and the ball body 2, the sealing piece is pressed inside by the fixing ring 4, the sealing piece is abutted against the ball body 2 through the fixing ring 4, coal dust can be effectively prevented from entering between the ball body 2 and the valve body 1, compared with the traditional sealing effect, the sealing effect is better, and the replacement can be carried out; the benefit of design like this lies in, can avoid inside buggy to enter into between spheroid 2 and the valve body 1 through the sealing member, and can extrude the sealing member in valve body 1 through solid fixed ring 4, improves sealed effect, and just can change the sealing member after dismantling gu fixed ring 4, advance later maintenance convenience, and sealed effectual.
As shown in fig. 2, draw-in groove 6 has been seted up to the inner wall of valve body 1, the sealing member includes sealing washer 5, the outside end fixedly connected with of sealing washer 5 and draw-in groove 6 matched card strip 7, card strip 7 and sealing washer 5 set up as an organic wholely, the card strip 7 and the draw-in groove 6 joint of sealing washer 5 lateral wall, place the position at draw-in groove 6 after flattening sealing washer 5 in the installation, press card strip 7 to draw-in groove 6 in, press the installation from the inside of sealing washer 5 can, card strip 7 and sealing washer 5 set up as integrated into one piece moreover, can be better provide stable sealed effect, simple to operate, dismantle swiftly.
As shown in fig. 2, the sealing ring 5 is close to the sealing strip 8 fixedly connected with the side wall of the sphere 2, the sealing strip 8 is fixed on the side wall of the sealing ring 5, the cross section of the sealing strip 8 is circular and is in contact with the surface of the sphere 2, and the sealing strip can be pressed to deform after being in contact with the surface of the sphere 2, so that a better sealing effect is achieved.
As shown in fig. 3, the outer side wall of the fixing ring 4 is fixedly connected with auxiliary rods 9, the number of the auxiliary rods 9 is multiple, the distance is equal, the fixing ring 4 can be driven to rotate by the auxiliary rods 9 when the fixing ring 4 is taken down, and the auxiliary rods 9 can also be sleeved by sleeves, so that the fixing ring 4 can be conveniently rotated.
As shown in fig. 2, the outside terminal surface of sealing washer 5 and the inboard terminal surface laminating setting of solid fixed ring 4, and gu the up end of solid fixed ring 4 flushes the setting with the passway of spheroid 2, gu fixed ring 4 flushes the setting with the passway of spheroid 2 and can avoid the buggy directly to enter into the clearance in, and gu fixed ring 4 and the outside terminal surface laminating of sealing washer 5, buggy can't enter into between spheroid 2 and the valve body 1 through the sealing washer 5 of pressurized.
As shown in fig. 2, the sealing strip 8 is located in the middle position of the inner side of the sealing ring 5, and the sealing strip 8 can better play a sealing role by being located in the middle of the sealing ring 5, so that a second sealing effect can be achieved.
The present utility model is not limited to the above embodiments, but is capable of modification and variation in all aspects, including those of ordinary skill in the art, without departing from the spirit and scope of the present utility model.
Claims (6)
1. The utility model provides a pulverized coal feed control valve of power plant, includes valve body (1) and rotates spheroid (2) inside valve body (1), its characterized in that:
the inner wall fixedly connected with internal thread go-between (3) of feed end and the discharge end of valve body (1), internal thread go-between (3) and valve body (1) are as an organic whole set up, the inner wall threaded connection of internal thread go-between (3) has solid fixed ring (4), is located be provided with the sealing member between spheroid (2) and solid fixed ring (4).
2. The pulverized coal feed control valve for a power plant as claimed in claim 1, wherein a clamping groove (6) is formed in the inner wall of the valve body (1), the sealing element comprises a sealing ring (5), a clamping strip (7) matched with the clamping groove (6) is fixedly connected to the outer side end of the sealing ring (5), and the clamping strip (7) and the sealing ring (5) are integrally arranged.
3. A pulverized coal feed control valve for a power plant according to claim 2, characterized in that the sealing ring (5) is fixedly connected with a sealing strip (8) close to the side wall of the sphere (2).
4. The pulverized coal feed control valve for a power plant according to claim 1, wherein auxiliary rods (9) are fixedly connected to the outer side wall of the fixing ring (4), and the number of the auxiliary rods (9) is multiple and the intervals are equal.
5. The pulverized coal feed control valve for a power plant as claimed in claim 2, characterized in that the outer end face of the sealing ring (5) is attached to the inner end face of the fixing ring (4), and the upper end face of the fixing ring (4) is arranged flush with the passage opening of the sphere (2).
6. A pulverized coal feed control valve for a power plant according to claim 3, characterized in that the sealing strip (8) is arranged at an inner intermediate position of the sealing ring (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322245220.8U CN220581728U (en) | 2023-08-21 | 2023-08-21 | Pulverized coal feeding control valve for power plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322245220.8U CN220581728U (en) | 2023-08-21 | 2023-08-21 | Pulverized coal feeding control valve for power plant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220581728U true CN220581728U (en) | 2024-03-12 |
Family
ID=90121204
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322245220.8U Active CN220581728U (en) | 2023-08-21 | 2023-08-21 | Pulverized coal feeding control valve for power plant |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220581728U (en) |
-
2023
- 2023-08-21 CN CN202322245220.8U patent/CN220581728U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |