CN219043847U - Device for valve seat reloading of gate valve and gate valve maintenance device - Google Patents
Device for valve seat reloading of gate valve and gate valve maintenance device Download PDFInfo
- Publication number
- CN219043847U CN219043847U CN202223310867.6U CN202223310867U CN219043847U CN 219043847 U CN219043847 U CN 219043847U CN 202223310867 U CN202223310867 U CN 202223310867U CN 219043847 U CN219043847 U CN 219043847U
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- Prior art keywords
- hole
- connecting rod
- groove
- valve seat
- gate valve
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- 238000012423 maintenance Methods 0.000 title abstract description 10
- 239000010410 layer Substances 0.000 claims description 7
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 4
- 239000011241 protective layer Substances 0.000 claims description 4
- 239000000741 silica gel Substances 0.000 claims description 4
- 229910002027 silica gel Inorganic materials 0.000 claims description 4
- 229920000742 Cotton Polymers 0.000 claims description 3
- 238000000034 method Methods 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 238000004891 communication Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 238000007667 floating Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000003034 coal gas Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000008399 tap water Substances 0.000 description 1
- 235000020679 tap water Nutrition 0.000 description 1
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Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
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- Sliding Valves (AREA)
Abstract
The utility model provides a device for returning a gate valve seat and a gate valve maintenance device, wherein the gate valve seat returning device comprises a pulling support, the pulling support is formed by connecting a plurality of connecting rods, the connecting rods are fixedly connected, connecting holes are formed in the end parts of the connecting rods, internal threads are formed in the connecting holes, the connecting holes are connected with screws on pulling rods through the internal threads, and the number and the connecting positions of the pulling rods are the same as those of the connecting rods.
Description
Technical Field
The utility model relates to the technical field of constructional engineering, in particular to a device for resetting a valve seat of a gate valve and a gate valve maintenance device.
Background
The flat gate valve is a sliding valve with parallel shutters as a closure member. The closure member may be a single shutter or a double shutter with a spreader mechanism therebetween. The pressing force of the shutter against the valve seat is controlled by the pressure of the medium acting on the floating shutter or the floating valve seat. In the case of a double-gate flat gate valve, the hold-down force can be supplemented by a spreader mechanism between the two gates. The flat gate valve has small flow resistance, can be suitable for mediums with suspended particles, and the sealing surface of the valve seat can not be damaged by thermal deformation of the valve body. And even if the valve is closed in a cold state, the thermal extension of the valve rod can not overload the sealing surface, so that the valve is suitable for the transportation of petroleum, natural gas, coal gas and tap water.
The flat gate valve is cleaned and maintained after being used for a period of time, and in the maintenance operation of the flat gate valve, the valve is required to be disassembled by 100 percent, and the main procedures comprise rust removal, cleaning, grinding, wearing part replacement, reinstallation, inspection and pressure test. However, when the existing maintenance is performed, the prestress of the valve seat is not well mastered, so that the valve plate and the valve seat cannot be well sealed, and the flat gate valve cannot be normally used.
In view of this, the present utility model has been made.
Disclosure of Invention
The first object of the utility model is to provide a device for the valve seat back assembly of a gate valve, which connects a connecting rod with a pulling rod through a connecting hole, pulls the pulling rod, pulls the valve seat to move through the connecting rod, controls the prestress of the valve seat, ensures that the prestress is evenly released after a valve plate and the valve seat are in soft and perfect contact, and realizes the normal maintenance and use of a flat gate valve.
A second object of the present utility model is to provide a gate valve maintenance device comprising the above device for valve seat reinstallation of a gate valve.
In order to achieve the above purpose, the present utility model adopts the following technical scheme:
the utility model provides a device for valve seat reloading of a gate valve, which comprises a pulling support, wherein the pulling support is formed by connecting a plurality of connecting rods, the connecting rods are fixedly connected, connecting holes are formed in the end parts of the connecting rods, internal threads are formed in the connecting holes, the connecting holes are connected with screws on the pulling rods through the internal threads, and the number and the connecting positions of the pulling rods and the connecting rods are the same. Through the connecting rod that corresponds the setting with the pulling rod, make when pulling the disk seat remains stable, can even pulling the disk seat, better control the prestressing force of disk seat.
Preferably, a groove is formed in the end portion of the connecting rod, a limiting block is arranged in the groove, the groove is an open groove, and the limiting block moves along the groove. Through setting up the stopper is spacing to the motion of connecting rod prevents that the connecting rod from drop in the disk seat.
Preferably, the limiting block is provided with a strip-shaped threaded through hole, the aperture of the threaded through hole is larger than that of the connecting hole, and the length of the threaded through hole is larger than the movement length of the limiting block. Through setting up the screw through-hole guarantees that the screw can not by the stopper influences, can pass through the screw through-hole with the connecting hole is connected.
Preferably, a spring is fixedly installed at the end of the groove, the other end of the spring is overlapped with the limiting block, and the spring is in a compressed state in the movement process of the limiting block. Through setting up the spring, make the stopper is in move in the recess, through with the spring sets up to compressed state, make the stopper receives always the power of spring, can with the connecting rod carries out better spacing.
Preferably, the limiting block is provided with a strip-shaped through hole, a clamping column is arranged in the through hole, the clamping column is arranged in the groove, and the length of the strip-shaped through hole is equal to the movement length of the limiting block. Through setting up the card post with rectangular shape through-hole is right the stopper is spacing, prevents the stopper because the elasticity of spring with the recess breaks away from.
Preferably, the end of the connecting rod is arc-shaped and is configured in the groove of the valve seat inner ring, so that the connecting rod is prevented from damaging the valve seat.
Preferably, the number of the connecting rods is two, and the two connecting rods are vertically connected.
Preferably, the connection position of the connecting rods is the midpoint of the connecting rods, and the connection holes at the two ends of each connecting rod are symmetrically arranged.
Preferably, a protective layer is arranged on the end face of the connecting rod and consists of a silica gel layer and a cotton wool layer, so that the valve seat is prevented from being damaged when the connecting rod is pulled.
The utility model also provides a gate valve maintenance device which comprises the device for resetting the gate valve seat.
Compared with the prior art, the utility model has at least the following advantages:
(1) According to the utility model, the prestress of the valve seat is controlled through the cooperation of the connecting rod and the pulling rod, so that after the valve plate and the valve seat are in perfect contact with each other in a soft sealing manner, the prestress is released uniformly, the valve seat and the valve plate are adjusted again during maintenance, the construction cost is saved, and the working efficiency is improved.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the utility model. Also, like reference numerals are used to designate like parts throughout the figures. In the drawings:
fig. 1 is a schematic structural diagram of a connecting rod according to an embodiment of the present utility model.
Wherein,,
1-connecting rods; 2-grooves; 3-limiting blocks; 4-a spring; 5-a strip-shaped through hole; 6-clamping the column; 7-connecting holes; 8-threaded through holes.
Detailed Description
The technical solution of the present utility model will be clearly and completely described below with reference to the accompanying drawings and detailed description, but it will be understood by those skilled in the art that the examples described below are some, but not all, examples of the present utility model, and are intended to be illustrative of the present utility model only and should not be construed as limiting the scope of the present utility model. 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. The specific conditions are not noted in the examples and are carried out according to conventional conditions or conditions recommended by the manufacturer. The reagents or apparatus used were conventional products commercially available without the manufacturer's attention.
In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; may be in mechanical communication or in electrical communication; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
In order to more clearly illustrate the technical scheme of the utility model, the following description is given by way of specific examples.
Examples
As shown in fig. 1, this embodiment provides a device for valve seat back assembly of a gate valve, which is provided with a pulling bracket, the pulling bracket is composed of a connecting rod 1 and a pulling rod, wherein a plurality of connecting rods 1 are connected to form a part of the pulling bracket, a connecting hole 7 is formed at the end of the connecting rod 1, an internal thread is arranged in the connecting hole 7, a rotatable screw is installed on the pulling rod, the screw is configured in the connecting hole 7, the connecting rod 1 and the pulling rod are connected together, and the number and the connection positions of the pulling rod and the connecting rod 1 are correspondingly set, so that the valve seat is prevented from being deviated during pulling.
In this embodiment, the number of the connecting rods 1 is set to two, the two connecting rods 1 are set to be perpendicular to each other, the connection part of the two connecting rods 1 is set to be the middle point of the connecting rod 1, meanwhile, the connecting holes 7 on each connecting rod 1 are set to be symmetrically arranged, and likewise, the number and connection positions of the pulling rods and the connecting rods 1 are the same, so that the valve seat motion is ensured not to deviate when the pulling rods are pulled.
The end of the connecting rod 1 is provided with a groove 2, the groove 2 is an open groove, a limiting block 3 is arranged in the groove 2, the limiting block 3 is arranged in the groove 2 and can move along the groove 2, a spring 4 is fixedly arranged at the end of the groove 2, the spring 4 is in lap joint with the limiting block 3, the spring 4 is always in a compressed state in the use process, and the limiting block 3 is ensured to always receive the force of the spring 4 and move along the groove 2.
In order not to influence the use of the connecting hole 7, a strip-shaped threaded through hole 8 is formed in the limiting block 3, the aperture of the threaded through hole 8 is larger than that of the connecting hole 7, and meanwhile, the length of the threaded through hole 8 is selected to be larger than the movement length of the limiting block 3, so that the screw can be connected with the connecting hole 7 through the threaded through hole 8 no matter how the limiting block 3 moves.
In order to prevent the limiting block 3 from popping up the groove 2, a strip-shaped through hole 5 is arranged on the limiting block 3, a clamping column 6 is arranged in the strip-shaped through hole 5, the clamping column 6 is fixedly arranged in the groove 2, and the length of the strip-shaped through hole 5 is equal to the movement length of the limiting block 3, so that the limiting block 3 can be limited, and the limiting block 3 is ensured not to pop up the groove 2.
In order to ensure the stability of the valve seat in the pulled process, the length of the limiting block 3, which protrudes out of the connecting rod 1 after being ejected by the spring 4, is added with the length of the connecting rod 1, then the two connecting rods 1 are connected together after the midpoint is taken, meanwhile, in order to prevent the connecting rod 1 from damaging the valve seat, the end part of the connecting rod 1 and the end part of the limiting block 3 are arranged into an arc shape, and meanwhile, a protective layer is arranged on the end surface of the connecting rod 1, and consists of a silica gel layer, a cotton wool layer and a bracket from outside to inside in sequence, wherein the silica gel layer is in contact with the valve seat, so that the valve seat is prevented from being damaged during pulling.
After a specific test, the material of the pulling bracket is selected to be 40# steel, and the rigidity of the tool is improved after the material is adjusted to be treated, so that the effect is ideal.
To further enhance the understanding of the present embodiment, the following detailed description is given:
firstly, the limiting block 3 is pressed down, then the connecting rod 1 is placed in the valve seat, then the limiting block 3 is loosened, the limiting block 3 is ejected out and is configured in a groove of an inner ring of the valve seat, the pulling support is clamped in the valve seat, then the pulling rod is connected with the connecting rod 1 through a screw, the pulling rod is pulled, and the valve seat is pulled to move through the connecting rod 1, so that a valve plate is cleaned.
Finally, it is to be understood that the above embodiments are merely exemplary embodiments employed for the purpose of illustrating the principles of the present utility model, however, the present utility model is not limited thereto. Various modifications and improvements may be made by those skilled in the art without departing from the principles and spirit of the utility model, and such modifications and improvements are also considered within the scope of the utility model.
Claims (10)
1. The utility model provides a device for gate valve disk seat is adorned back, its characterized in that, including the pulling support, the pulling support is formed by connecting the connecting rod of a plurality of roots, a plurality of be fixed connection between the connecting rod, the connecting hole has been seted up to the tip of connecting rod, the internal thread has been seted up in the connecting hole, the connecting hole passes through the screw connection on internal thread and the pulling rod, the pulling rod with quantity, the hookup location of connecting rod are the same.
2. The device of claim 1, wherein a groove is formed in an end portion of the connecting rod, a stopper is disposed in the groove, the groove is an open groove, and the stopper moves along the groove.
3. The device according to claim 2, wherein the limiting block is provided with a strip-shaped threaded through hole, the aperture of the threaded through hole is larger than that of the connecting hole, and the length of the threaded through hole is larger than the movement length of the limiting block.
4. The device of claim 2, wherein a spring is fixedly mounted at the end of the groove, the other end of the spring is overlapped with the limiting block, and the spring is in a compressed state during the movement of the limiting block.
5. The device of claim 2, wherein the stopper is provided with a long through hole, a clamping column is arranged in the through hole, the clamping column is arranged in the groove, and the length of the long through hole is equal to the movement length of the stopper.
6. The device of claim 1, wherein the end of the connecting rod is arcuate and disposed within a groove in the inner ring of the valve seat to prevent the connecting rod from damaging the valve seat.
7. The device according to claim 1, wherein the number of the connecting rods is two, and two connecting rods are vertically connected.
8. The device according to claim 7, wherein the connection position of the connection rods is the midpoint of the connection rods, and the connection holes at both ends of each connection rod are symmetrically arranged.
9. The device according to claim 1, wherein a protective layer is arranged on the end face of the connecting rod, and the protective layer consists of a silica gel layer and a cotton wool layer and is used for preventing the valve seat from being damaged when the connecting rod is pulled.
10. A gate valve service device comprising a device for gate valve seat reinstallation according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223310867.6U CN219043847U (en) | 2022-12-09 | 2022-12-09 | Device for valve seat reloading of gate valve and gate valve maintenance device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223310867.6U CN219043847U (en) | 2022-12-09 | 2022-12-09 | Device for valve seat reloading of gate valve and gate valve maintenance device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219043847U true CN219043847U (en) | 2023-05-19 |
Family
ID=86319082
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223310867.6U Active CN219043847U (en) | 2022-12-09 | 2022-12-09 | Device for valve seat reloading of gate valve and gate valve maintenance device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219043847U (en) |
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2022
- 2022-12-09 CN CN202223310867.6U patent/CN219043847U/en active Active
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| GR01 | Patent grant |