CN220850801U - Gate structure of low-torque non-differential opening and closing - Google Patents
Gate structure of low-torque non-differential opening and closing Download PDFInfo
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- CN220850801U CN220850801U CN202322043462.9U CN202322043462U CN220850801U CN 220850801 U CN220850801 U CN 220850801U CN 202322043462 U CN202322043462 U CN 202322043462U CN 220850801 U CN220850801 U CN 220850801U
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- flashboard
- runner
- gate plate
- pressure
- pressure relief
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- 230000007246 mechanism Effects 0.000 claims abstract description 11
- 238000007789 sealing Methods 0.000 claims description 25
- 239000000956 alloy Substances 0.000 claims description 6
- 229910045601 alloy Inorganic materials 0.000 claims description 6
- 230000006835 compression Effects 0.000 claims description 6
- 238000007906 compression Methods 0.000 claims description 6
- 230000000694 effects Effects 0.000 claims description 2
- 239000011241 protective layer Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
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Abstract
The utility model relates to the technical field of gate valves, in particular to a low-torque non-differential-pressure opening and closing gate plate structure, which comprises a gate plate, wherein a gate plate central flow passage is arranged on the inner wall of the gate plate, the gate plate central flow passage is arranged at the central position of the gate plate, the gate plate central flow passage is in a longitudinal state, pressure relief circulation pipeline mechanisms are arranged at the two ends of the gate plate central flow passage, the pressure relief pipeline mechanisms form pressure relief flow passages which penetrate the gate plate from left to right in the gate plate inner structure and are mutually communicated with the gate plate central flow passage, a valve core arranged in the gate plate inner part is arranged above the gate plate central flow passage, a group of T-shaped grooves are arranged above the gate plate central flow passage, the valve core is of a T-shaped structure, the valve core is assembled in the T-shaped grooves, a group of dished springs are further arranged in the T-shaped grooves, the dished springs are arranged between the valve core and the gate plate inner wall, the dished springs play a role of tightly propping the valve core, a group of valve rods are arranged at the top ends of the valve rods, and the bottom ends of the valve rods tightly prop against the top of the valve core.
Description
Technical Field
The utility model relates to the technical field of gate valves, in particular to a gate plate structure for opening and closing a low-torque differential-pressure-free gate plate.
Background
The gate valve is a gate plate of an opening and closing piece, the moving direction of the gate plate is perpendicular to the fluid direction, the gate valve can only be fully opened and fully closed, the gate plate cannot be regulated and throttled, most of gate valves are forced to be sealed, namely, when the valve is closed, the gate plate is forced to be pressed against a valve seat by means of external force, so that the sealing performance of a sealing surface is ensured, particularly the wedge-type integrated gate plate is required to be driven by a valve rod to rise or fall by the gate plate, in the opening and closing process, the pressure difference on two sides of the gate plate is the actual working pressure of a system, the pressure difference acts on the inlet side of the gate plate, the gate plate and a valve seat surface on the outlet side are tightly attached, and great friction force is generated, so that the opening and closing moment of the valve is increased, and an actuator with larger power is required to be matched to be opened or closed, so that the matching cost and the running cost of the valve are directly increased.
Disclosure of utility model
Aiming at the situation, in order to overcome the defects of the prior art, the utility model aims to provide a low-torque non-differential pressure opening and closing flashboard structure, and the differential pressure before and after the flashboard is opened and closed is reduced to be balanced at two sides by a specially designed flashboard structure design form of a built-in automatic opening and closing piece, so that the non-differential pressure opening and closing of the flashboard is realized, the opening and closing moment of a valve is effectively reduced, and the requirements of easy opening and complete machine cost reduction are met.
The technical aim of the utility model is realized by the following technical scheme:
The utility model provides a flashboard structure that low moment of torsion no pressure differential was opened and close, includes the flashboard, the inner wall of flashboard is equipped with flashboard central runner, the central point of flashboard is located to flashboard central runner is the vertical state, flashboard central runner's both ends are equipped with pressure release circulation pipeline mechanism, pressure release circulation pipeline mechanism forms the flashboard inner structure in from left to right run through the flashboard to with the pressure release runner of flashboard central runner intercommunication each other, the top of flashboard central runner is equipped with the case of installing inside the flashboard, the top that is located flashboard central runner in the flashboard is equipped with a set of T type groove, the case is T type structure, and the case assembly is inside this T type groove, the inside of T type groove still is equipped with a set of belleville spring, belleville spring installs between case and flashboard inner wall, and belleville spring plays the effect to top case, a set of valve rod is installed on the top of case, the bottom and the case top tight contact of valve rod.
Further, the pressure relief circulation pipeline mechanism comprises a first pressure relief runner and a second pressure relief runner, the first pressure relief runner is arranged on the left side of the flashboard central runner, the right end of the first pressure relief runner is communicated with the bottom end of the flashboard central runner, the second pressure relief runner is arranged on the right side of the flashboard central runner, and the left end of the second pressure relief runner is communicated with the top end of the flashboard central runner.
Further, when the valve core is at the lowest position, sealing is formed between the right end face of the valve core and the second pressure relief flow channel, a sealing valve seat is fixed at the top of the flashboard central flow channel, a sealing clamping seat is fixedly connected to the lower end of the valve core, and a sealing pair is formed between the sealing clamping seat and the sealing valve seat.
Further, an alloy protection layer is deposited on the outer side of the bottom end of the valve core.
Further, the bottom of valve rod is equipped with spacing end, spacing end fixed connection is in compressing tightly the top of contact end cover, and spacing end is fixed between valve rod and compression contact end cover, the top fixedly connected with stroke control block of flashboard, spacing end is installed in the stroke control block inside, and spacing end can't break away from the stroke control block.
Further, the bottom end of the valve rod is provided with a compression contact end cover, the bottom surface of the compression contact end cover is of an arc-shaped structure, and the arc-shaped structure is compressed on the top of the valve core.
In summary, the utility model has the following beneficial effects:
According to the utility model, through improving the structure of the flashboard, the pressure relief communication at the moment of opening the flashboard is realized by utilizing the structural design of the valve core and the pressure relief runner which are arranged in the flashboard in a lifting manner, and the pressure balance at two sides of the flashboard can be realized before the flashboard is opened, and the friction force at the downstream side of the flashboard disappears, so that the flashboard can be opened without friction, the flashboard can be controlled to be opened without a high-power actuator, the low-torsion opening and closing moment is realized, and the cost requirement of the whole machine is reduced.
Drawings
The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate and together with the description serve to explain the utility model, if necessary:
fig. 1 is a schematic diagram of the present utility model.
In the figure, 1, a flashboard; 2. a gate central flow passage; 3. a valve core; 4. a T-shaped groove; 5. a belleville spring; 6. a valve stem; 7. a first pressure relief flow path; 8. the second pressure release flow passage; 9. sealing the valve seat; 10. sealing the clamping seat; 11. an alloy protective layer; 12. a limiting end head; 13. a stroke control block; 14. the contact end cap is pressed.
Detailed Description
The foregoing and other features, aspects and advantages of the present utility model will become more apparent from the following detailed description of the embodiments, which proceeds with reference to the accompanying fig. 1. The following embodiments are described in detail with reference to the drawings.
Exemplary embodiments of the present utility model will be described below with reference to the accompanying drawings.
Examples
The utility model provides a flashboard structure that low moment of torsion no pressure differential was opened and close, including flashboard 1, flashboard 1's inner wall is equipped with flashboard central runner 2, flashboard central runner 2 locates flashboard 1's central point, and flashboard central runner 2 is the vertical state of putting, flashboard central runner 2's both ends are equipped with pressure release circulation pipeline mechanism, pressure release circulation pipeline mechanism forms in the flashboard 1 inner structure from left to right run through flashboard 1, and with the pressure release runner of flashboard central runner 2 intercommunication each other, specifically speaking, pressure release circulation pipeline mechanism includes first pressure release runner 7 and second pressure release runner 8, flashboard central runner 2 left side is located to first pressure release runner 7, the right-hand member of first pressure release runner 7 communicates each other with flashboard central runner 2's bottom, flashboard central runner 2 right side is located to second pressure release runner 8, the left end of second pressure release runner 8 communicates each other with flashboard central runner 2's top.
The above of flashboard central runner 2 is equipped with installs at the inside case 3 of flashboard 1, and the outside of case 3 bottom is built-up welding has alloy protective layer 11, and alloy protective layer 11 can effectively protect case 3 self structure, in this embodiment, because case 3 installs in the position of pressure release runner, naturally can be in the operating condition that a medium was erodeed for a long time, and the alloy protective layer 11 of build-up welding can effectively protect its structure be difficult for corroding, increase of service life.
A group of T-shaped grooves 4 are formed in the flashboard 1 above the flashboard central flow channel 2, the valve core 3 is of a T-shaped structure, the valve core 3 is assembled inside the T-shaped grooves 4, a group of belleville springs 5 are further arranged inside the T-shaped grooves 4, the belleville springs 5 are arranged between the valve core 3 and the inner wall of the flashboard 1, and the belleville springs 5 play a role in tightening the valve core 3.
When the valve core 3 is at the lowest position, sealing is formed between the right end face of the valve core 3 and the second pressure relief flow channel 8, a sealing valve seat 9 is fixed at the top of the flashboard central flow channel 2, a sealing clamping seat 10 is fixedly connected to the lower end of the valve core 3, and a sealing pair is formed between the sealing clamping seat 10 and the sealing valve seat 9.
A group of valve rods 6 are arranged at the top end of the valve core 3, and the bottom ends of the valve rods 6 are in tight contact with the top of the valve core 3.
The bottom of valve rod 6 is equipped with spacing end 12, and spacing end 12 fixed connection is in compressing tightly the top of contact end cover 14, and spacing end 12 is fixed between valve rod 6 and compressing tightly contact end cover 14, and the top fixedly connected with stroke control block 13 of flashboard 1, spacing end 12 installs in stroke control block 13 inside, and spacing end 12 can't break away from stroke control block 13.
The bottom end of the valve rod 6 is provided with a compression contact end cover 14, the bottom surface of the compression contact end cover 14 is of an arc-shaped structure, and the arc-shaped structure is compressed on the top of the valve core 3.
Under the flashboard 1 is in the closed state, the bottom of the valve rod 6 is in mutual abutting contact with the top of the valve core 3, the valve rod 6 is tightly pressed through the elastic action of the belleville spring, the valve rod 6 is in the bottommost state, the flashboard 1 is guaranteed not to loosen, at the moment, the limiting end 12 is also positioned at the bottommost position of the stroke control block 13, and when the valve is closed to the tail end of the stroke, the flashboard 1 reaches the closing position, the valve rod 6 naturally compresses the valve core 3 and the belleville spring, the sealing pair at the lower part of the valve core 3 compresses tightly and realizes sealing, the first pressure relief runner 7, the flashboard central runner 2 and the second pressure relief runner 8 are all in the cut-off closed state, no leakage runner is arranged at two sides of the flashboard 1, and the valve is completely closed.
When the valve is opened, the valve rod 6 rises in advance, the pressing force on the upper part of the belleville spring disappears, the self elastic force acts on the valve core 3 upwards, the sealing pair of the valve core 3 is opened, at the moment, the first pressure relief flow channel 7, the flashboard central flow channel 2 and the second pressure relief flow channel 8 are communicated, and because one end idle stroke is arranged above the limiting end 12 in the stroke control block 13, the idle stroke is consistent with the stroke of the belleville spring, when the first pressure relief flow channel 7, the flashboard central flow channel 2 and the second pressure relief flow channel 8 are completely communicated, the valve rod 6 continues to rise and can also carry the flashboard 1 to move upwards, meanwhile, the two sides of the flashboard 1 realize the pressure balance on two sides of the flashboard 1 instantly, and the friction force on the downstream side of the flashboard 1 disappears, so that the flashboard 1 is opened without friction.
While the utility model has been described in connection with certain embodiments, it is not intended that the utility model be limited thereto; for those skilled in the art to which the present utility model pertains and the related art, on the premise of based on the technical scheme of the present utility model, the expansion, the operation method and the data replacement should all fall within the protection scope of the present utility model.
Claims (6)
1. The utility model provides a flashboard structure that low moment of torsion no pressure differential was opened and close, includes flashboard (1), its characterized in that: the inner wall of flashboard (1) is equipped with flashboard central runner (2), the central point of flashboard (1) is located in flashboard central runner (2) to flashboard central runner (2) is the vertical state, the both ends of flashboard central runner (2) are equipped with pressure release circulation pipeline mechanism, pressure release circulation pipeline mechanism forms in flashboard (1) inner structure from left to right run through flashboard (1) to with flashboard central runner (2) pressure release runner that communicates each other, the top of flashboard central runner (2) is equipped with installs case (3) in flashboard (1) inside, the top that is located flashboard central runner (2) in flashboard (1) is equipped with a set of T type groove (4), case (3) are T type structure, and case (3) are assembled inside this T type groove (4), the inside of T type groove (4) still is equipped with a set of belleville spring (5), belleville spring (5) are installed between case (3) and flashboard (1) inner wall, and the effect that belleville spring (5) played to top tightly is tight (3), case (6) are installed to the top of valve rod (6) and case (6) top contact.
2. The low-torque differential-pressure-free opening and closing flashboard structure of claim 1, wherein: the pressure relief circulation pipeline mechanism comprises a first pressure relief runner (7) and a second pressure relief runner (8), wherein the first pressure relief runner (7) is arranged on the left side of the flashboard central runner (2), the right end of the first pressure relief runner (7) is communicated with the bottom end of the flashboard central runner (2), the second pressure relief runner (8) is arranged on the right side of the flashboard central runner (2), and the left end of the second pressure relief runner (8) is communicated with the top end of the flashboard central runner (2).
3. The low torque differential pressure free open and close ram structure of claim 2, wherein: when the valve core (3) is positioned at the lowest position, sealing is formed between the right end face of the valve core (3) and the second pressure relief flow channel (8), a sealing valve seat (9) is fixed at the top of the flashboard central flow channel (2), a sealing clamping seat (10) is fixedly connected to the lower end of the valve core (3), and a sealing pair is formed between the sealing clamping seat (10) and the sealing valve seat (9).
4. The low-torque differential-pressure-free opening and closing flashboard structure of claim 1, wherein: an alloy protection layer (11) is deposited on the outer side of the bottom end of the valve core (3).
5. The low-torque differential-pressure-free opening and closing flashboard structure of claim 1, wherein: the bottom of valve rod (6) is equipped with spacing end (12), spacing end (12) fixed connection is in the top that compresses tightly contact end cover (14), and spacing end (12) are fixed between valve rod (6) and compression contact end cover (14), the top fixedly connected with stroke control block (13) of flashboard (1), spacing end (12) are installed inside stroke control block (13), and spacing end (12) can't break away from stroke control block (13).
6. The low-torque differential-pressure-free opening and closing flashboard structure according to claim 5, wherein: the bottom of valve rod (6) is equipped with compresses tightly contact end cover (14), the bottom surface that compresses tightly contact end cover (14) is circular-arc structure, and this circular-arc structure compresses tightly in case (3) top.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322043462.9U CN220850801U (en) | 2023-08-01 | 2023-08-01 | Gate structure of low-torque non-differential opening and closing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322043462.9U CN220850801U (en) | 2023-08-01 | 2023-08-01 | Gate structure of low-torque non-differential opening and closing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220850801U true CN220850801U (en) | 2024-04-26 |
Family
ID=90739075
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322043462.9U Active CN220850801U (en) | 2023-08-01 | 2023-08-01 | Gate structure of low-torque non-differential opening and closing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220850801U (en) |
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2023
- 2023-08-01 CN CN202322043462.9U patent/CN220850801U/en active Active
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