CN219692285U - Particle-proof, anti-blocking hard sealing butterfly valve - Google Patents
Particle-proof, anti-blocking hard sealing butterfly valve Download PDFInfo
- Publication number
- CN219692285U CN219692285U CN202321371742.6U CN202321371742U CN219692285U CN 219692285 U CN219692285 U CN 219692285U CN 202321371742 U CN202321371742 U CN 202321371742U CN 219692285 U CN219692285 U CN 219692285U
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- sealing
- plate
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- 238000007789 sealing Methods 0.000 title claims abstract description 64
- 230000000903 blocking effect Effects 0.000 claims abstract description 4
- 238000012856 packing Methods 0.000 claims description 19
- 239000000945 filler Substances 0.000 claims description 16
- 210000004907 gland Anatomy 0.000 claims description 14
- 239000002184 metal Substances 0.000 claims description 4
- 239000008187 granular material Substances 0.000 claims 1
- 230000007547 defect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Abstract
The utility model provides a particle-proof and anti-blocking hard sealing butterfly valve, which comprises a valve body, a valve rod, a valve plate, a valve seat and an actuating mechanism, wherein the valve rod is supported and installed in a valve rod hole on the valve body; the top and the bottom of the valve plate are also provided with a thrust ring sleeved on the valve rod, and the thrust ring is provided with a step which is matched with the valve plate to limit the position of the valve plate; a valve seat is arranged in the valve body, and the valve plate is in sealing connection with the valve seat; the bottom of the valve body is provided with a bottom flange; and a first sealing ring is arranged between the thrust ring and the valve body and between the thrust ring and the valve rod, and a second sealing ring is arranged on the end face of one end, close to the valve plate, of the shaft sleeve. The butterfly valve has the advantages of simple structure, small volume and good sealing performance, can isolate medium from entering a gap, and avoids the blocking and locking phenomena of the butterfly valve.
Description
Technical Field
The utility model relates to the technical field of butterfly valves, in particular to a particle-proof, anti-jamming and hard-sealing butterfly valve.
Background
The butterfly valve is a valve which is opened and closed by rotating the valve rod and simultaneously driving the valve plate to rotate, and in a channel of the valve body of the butterfly valve, the valve plate rotates around an axis, and when the butterfly valve is completely opened, the butterfly valve has smaller flow resistance. When the valve is opened between about 15 degrees and 70 degrees, sensitive flow control can be performed, so that in the field of large-caliber regulation, the butterfly valve has become one of the fastest-growing valve varieties in more than ten years due to good flow regulation function and closing sealing property, and the valve has a very wide application range.
Butterfly valves are of many types, including soft seal butterfly valves that use rubber seals and hard seal butterfly valves that use metal seals. At present, a hard sealing butterfly valve is used as a component for realizing on-off and flow control of a pipeline system, and has been widely applied in many fields of petroleum, chemical industry, metallurgy, hydropower and the like. However, in the application in the above fields, a medium containing particles often appears, so that the butterfly valve is blocked, even blocked; in addition, the existing butterfly valve has the defects of complex structure and poor sealing performance.
Disclosure of Invention
The utility model aims to provide a particle-proof and blocking-proof hard sealing butterfly valve, which overcomes the defects in the prior art.
In order to solve the technical problems, the technical scheme of the utility model is as follows: the particle-proof and anti-blocking hard sealing butterfly valve comprises a valve body, a valve rod, a valve plate, a valve seat and an actuating mechanism, wherein the valve rod is supported and installed in a valve rod hole on the valve body, the lower end of the valve rod penetrates through the valve plate and is fixedly connected with the valve plate through a fixing pin, the upper end of the valve rod extends out of the valve body to be connected with the actuating mechanism, and two shaft sleeves which are symmetrically arranged with the valve plate as a center are sleeved on the valve rod; the top and the bottom of the valve plate are also provided with a thrust ring sleeved on the valve rod, and the thrust ring is provided with a step which is matched with the valve plate to limit the position of the valve plate; a valve seat is arranged in the valve body, and the valve plate is in sealing connection with the valve seat; the bottom of the valve body is provided with a bottom flange, the top end of the valve body is provided with a bracket, and the executing mechanism is fixed on the bracket; and a first sealing ring is arranged between the thrust ring and the valve body, and between the thrust ring and the valve rod, and a second sealing ring is arranged on the end face of one end, close to the valve plate, of each shaft sleeve.
Further, the particle-proof and anti-blocking hard sealing butterfly valve is characterized in that the valve seat is of an annular structure made of a metal sheet and is elastically and firmly connected with the valve plate; the valve body is internally provided with a positioning groove for positioning the valve seat, and the valve seat is fastened in the positioning groove through a pressing ring fixed on the valve body.
Further, in the particle-proof and anti-blocking hard sealing butterfly valve, a boss is arranged at the top of the bottom flange, the boss is matched with a valve rod hole at the lower end of the valve body, and the top surface of the boss is abutted with the bottom surface of the shaft sleeve below the valve plate; and a sealing groove is formed in the outer side of the bottom of the boss, and a sealing gasket for sealing the end face of the bottom flange and the valve body is embedded in the sealing groove.
Further, the particle-proof and anti-blocking hard sealing butterfly valve is characterized in that a filler is arranged between the upper end of the valve body and the valve rod, the bottom of the filler is abutted to a shaft sleeve positioned above the valve plate, a filler gland is arranged above the filler, a filler pressing plate is arranged above the filler gland, and the filler pressing plate is connected with the valve body through a stud nut.
Furthermore, the particle-proof and anti-blocking hard sealing butterfly valve is characterized in that a sealing ring III is arranged between the packing gland and the valve body and between the packing gland and the valve rod.
Further, the particle-proof and jamming-proof hard sealing butterfly valve is characterized in that the shaft sleeve is of a split structure and comprises two short shaft sleeves which are abutted.
Further, the particle-proof and anti-blocking hard sealing butterfly valve is characterized in that the output end of the actuating mechanism is provided with a connecting shaft, the valve rod is connected with the connecting shaft through a clamping block, and the valve rod is connected with the actuating mechanism through the connecting shaft; the top of the actuating mechanism is provided with a locator which is electrically connected with the actuating mechanism.
Furthermore, the particle-proof and blockage-proof hard sealing butterfly valve is characterized in that the actuating mechanism is a pneumatic actuating mechanism or an electric actuating mechanism.
Compared with the prior art, the utility model has the beneficial effects that: the structure is simple, the volume is small, and the weight is light; the multiple seals formed by the first sealing ring, the second sealing ring, the third sealing ring and the like have good tightness, prevent medium from entering the gap and prevent the blocking and the locking of the valve rod; through the setting of thrust collar, guarantee the valve plate in the internal position relatively fixed of valve, reduce friction to through the elastic sealing connection of disk seat and valve plate, guarantee the leakproofness of valve plate and disk seat, avoid leaking outward, improve the leakproofness.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present utility model, and other drawings may be obtained according to the drawings without inventive effort to those skilled in the art.
FIG. 1 is a schematic diagram of the structure of an anti-particulate, anti-jamming hard seal butterfly valve of the present utility model;
FIG. 2 is a schematic view of the partial enlarged structure of FIG. 1;
FIG. 3 is a schematic view of the enlarged partial structure of B in FIG. 1;
in the figure: 1. a valve body; 101. a positioning groove; 2. a valve stem; 3. a valve plate; 4. a valve seat; 5. an actuator; 6. a shaft sleeve; 7. a thrust collar; 701. a step; 8. a bottom flange; 801. a boss; 9. a bracket; 10. a first sealing ring; 11. a second sealing ring; 12. a pressing ring; 13. a sealing gasket; 14. a filler; 15. a packing gland; 16. a packing pressing plate; 17. a third sealing ring; 18. a connecting shaft; 19. clamping blocks; 20. a positioner.
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.
Example 1
As shown in fig. 1-3, the particle-proof and anti-blocking hard sealing butterfly valve comprises a valve body 1, a valve rod 2, a valve plate 3, a valve seat 4 and an actuating mechanism 5, wherein the valve rod 2 is supported and installed in a valve rod hole on the valve body 1, the lower end of the valve rod 2 penetrates through the valve plate 3 and is fixedly connected with the valve plate 3 through a fixing pin, the upper end of the valve rod extends out of the valve body 1 and is connected with the actuating mechanism 5, two shaft sleeves 6 which are symmetrically arranged by taking the valve plate 3 as a center are sleeved on the valve rod 2, and the shaft sleeves 6 can reduce friction between the valve rod 2 and the valve body 1; the top and the bottom of the valve plate 3 are also provided with a thrust ring 7 sleeved on the valve rod 2, and the thrust ring 7 is provided with a step 701 matched with the valve plate 3 to limit the position of the valve plate 3, so that the position of the valve plate 3 in the valve body 1 is ensured to be relatively fixed, and friction is reduced; a valve seat 4 is arranged in the valve body 1, and the valve plate 3 is in sealing connection with the valve seat 4; the bottom of the valve body 1 is provided with a bottom flange 8, the top end of the valve body is provided with a bracket 9, and the actuating mechanism 5 is fixed on the bracket 9; the anti-thrust ring 7 is provided with a first sealing ring 10 between the valve body 1 and the anti-thrust ring 7 and the valve rod 2, the first sealing ring 10 can prevent particulate media from entering a gap between the valve rod 2 and the valve body 1, two shaft sleeves 6 are provided with a second sealing ring 11 on one end face close to the valve plate 3, the shaft sleeves 6 can compress the second sealing ring 11, the second sealing ring 11 is sealed, and the second sealing ring 11 can prevent media from entering the gap between the valve rod 2 and the shaft sleeves 6. The first sealing ring 10 and the second sealing ring 11 form double sealing, medium entering gaps are isolated, and blocking and locking phenomena of the butterfly valve are prevented.
As shown in fig. 1, a packing 14 is arranged between the upper end of the valve body 1 and the valve rod 2, the bottom of the packing 14 is abutted against the shaft sleeve 6 above the valve plate 3, a packing gland 15 is arranged above the packing 14, a packing pressing plate 16 is arranged above the packing gland 15, and the packing pressing plate 16 is connected with the valve body 1 through a stud nut; the packing gland 15 compresses the packing 14 such that the packing 14 seals and the packing 14 is used to seal the valve stem 2 from leakage of media. And a sealing ring III 17 is arranged between the packing gland 15 and the valve body 1 and between the packing gland 15 and the valve rod 2. And the third sealing ring 17 is in sealing fit with the filler 14, so that the medium of the valve rod 2 is prevented from leaking.
Example 2
Based on the structure of the embodiment 1, as shown in fig. 1 and 2, the valve seat 4 is an annular structure made of a metal sheet, is elastically and firmly connected with the valve plate 3, and has an elastic-like piece structure in section; the inside constant head tank 101 that is equipped with the location disk seat 4 of valve body 1, just disk seat 4 is fastened in constant head tank 101 through the clamping ring 12 of fixing on valve body 1, and clamping ring 12 and constant head tank 101 all are equipped with the location step of fastening disk seat 4, guarantee the leakproofness of valve plate 3 and disk seat 4, avoid leaking outward, improve the leakproofness.
In addition, as shown in fig. 1 and 3, a boss 801 is arranged at the top of the bottom flange 8, the boss 801 is matched with a valve rod hole at the lower end of the valve body 1, and the top surface of the boss 801 is abutted with the bottom surface of the shaft sleeve 6 below the valve plate 3; the outer side of the bottom of the boss 801 is provided with a sealing groove, and a sealing gasket 13 for sealing the connecting end face of the bottom flange 8 and the valve body 1 is embedded in the sealing groove. By this arrangement, the tightness of the bottom of the valve body 1 is ensured, and leakage is avoided.
As shown in fig. 1, the shaft sleeve 6 is of a split structure and comprises two short shaft sleeves which are abutted. The arrangement can reduce the manufacturing difficulty and the manufacturing and maintenance cost.
In addition, as shown in fig. 1, a connecting shaft 18 is arranged at the output end of the actuator 5, the valve rod 2 is connected with the connecting shaft 18 through a clamping block 19, and the valve rod 2 is connected with the actuator 5 through the connecting shaft 18; the top of the actuator 5 is provided with a positioner 20 electrically connected with the actuator. The actuator 20 is a pneumatic actuator or an electric actuator, in this embodiment, the actuator 5 is a pneumatic actuator, and the pneumatic actuator includes a cylinder and a pressure reducing valve, and the cylinder is an angular travel cylinder.
The working principle of the particle-proof and blocking-proof hard sealing butterfly valve is as follows: taking a pneumatic executing mechanism as an example, the positioner 20 controls air conveyed to the air cylinder by receiving 4-20 mA direct current signals, the pressure increase pushes the piston to overcome the spring force so as to enable the connecting shaft 18 to rotate, the connecting shaft 18 is connected with the valve rod 2 through the clamping block 19, the valve rod 2 rotates along with the connecting shaft 18, and the valve plate 3 is connected with the valve rod 2 through the fixing pin, so that the rotation of the valve plate 3 is realized; when no signal is generated, the cylinder closes the valve by the elastic force of the spring reset.
It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.
Claims (8)
1. Prevent granule, prevent blocking hard seal butterfly valve, its characterized in that: the valve rod is supported and installed in a valve rod hole on the valve body, the lower end of the valve rod penetrates through the valve plate and is fixedly connected with the valve plate through a fixing pin, the upper end of the valve rod extends out of the valve body to be connected with the executing mechanism, and two shaft sleeves which are symmetrically arranged with the valve plate as a center are sleeved on the valve rod; the top and the bottom of the valve plate are also provided with a thrust ring sleeved on the valve rod, and the thrust ring is provided with a step which is matched with the valve plate to limit the position of the valve plate; a valve seat is arranged in the valve body, and the valve plate is in sealing connection with the valve seat; the bottom of the valve body is provided with a bottom flange, the top end of the valve body is provided with a bracket, and the executing mechanism is fixed on the bracket; and a first sealing ring is arranged between the thrust ring and the valve body, and between the thrust ring and the valve rod, and a second sealing ring is arranged on the end face of one end, close to the valve plate, of each shaft sleeve.
2. The particle-proof, jamming-proof, hard-seal butterfly valve of claim 1, wherein: the valve seat is an annular structure made of a metal sheet and is elastically and firmly connected with the valve plate in a sealing manner; the valve body is internally provided with a positioning groove for positioning the valve seat, and the valve seat is fastened in the positioning groove through a pressing ring fixed on the valve body.
3. The particle-proof, jamming-proof, hard-seal butterfly valve of claim 1, wherein: the top of the bottom flange is provided with a boss which is matched with a valve rod hole at the lower end of the valve body, and the top surface of the boss is abutted with the bottom surface of the shaft sleeve below the valve plate; and a sealing groove is formed in the outer side of the bottom of the boss, and a sealing gasket for sealing the end face of the bottom flange and the valve body is embedded in the sealing groove.
4. The particle-proof, jamming-proof, hard-seal butterfly valve of claim 1, wherein: the valve is characterized in that a filler is arranged between the upper end of the valve body and the valve rod, the bottom of the filler is abutted to a shaft sleeve positioned above the valve plate, a filler gland is arranged above the filler, a filler pressing plate is arranged above the filler gland, and the filler pressing plate is connected with the valve body through a stud nut.
5. The particle-proof, jamming-proof, hard-seal butterfly valve of claim 4, wherein: and a sealing ring III is arranged between the packing gland and the valve body and between the packing gland and the valve rod.
6. The particle-proof, jamming-proof, hard-seal butterfly valve of claim 1, wherein: the shaft sleeve is of a split structure and comprises two short shaft sleeves which are abutted.
7. The particle-proof, jamming-proof, hard-seal butterfly valve of claim 1, wherein: the output end of the actuating mechanism is provided with a connecting shaft, the valve rod is connected with the connecting shaft through a clamping block, and the valve rod is connected with the actuating mechanism through the connecting shaft; the top of the actuating mechanism is provided with a locator which is electrically connected with the actuating mechanism.
8. The particle-proof, jamming-proof, hard-seal butterfly valve of claim 1 or 7, wherein: the actuating mechanism is a pneumatic actuating mechanism or an electric actuating mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321371742.6U CN219692285U (en) | 2023-06-01 | 2023-06-01 | Particle-proof, anti-blocking hard sealing butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321371742.6U CN219692285U (en) | 2023-06-01 | 2023-06-01 | Particle-proof, anti-blocking hard sealing butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219692285U true CN219692285U (en) | 2023-09-15 |
Family
ID=87965961
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321371742.6U Active CN219692285U (en) | 2023-06-01 | 2023-06-01 | Particle-proof, anti-blocking hard sealing butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219692285U (en) |
-
2023
- 2023-06-01 CN CN202321371742.6U patent/CN219692285U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |