CN220204716U - Stop valve for nuclear power station - Google Patents
Stop valve for nuclear power station Download PDFInfo
- Publication number
- CN220204716U CN220204716U CN202320948150.XU CN202320948150U CN220204716U CN 220204716 U CN220204716 U CN 220204716U CN 202320948150 U CN202320948150 U CN 202320948150U CN 220204716 U CN220204716 U CN 220204716U
- Authority
- CN
- China
- Prior art keywords
- valve body
- stopper
- nuclear power
- connecting valve
- wall
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 238000007789 sealing Methods 0.000 claims abstract description 15
- 239000007788 liquid Substances 0.000 claims description 31
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims 3
- 235000017491 Bambusa tulda Nutrition 0.000 claims 3
- 241001330002 Bambuseae Species 0.000 claims 3
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims 3
- 239000011425 bamboo Substances 0.000 claims 3
- 239000012530 fluid Substances 0.000 abstract description 14
- 230000000694 effects Effects 0.000 abstract description 8
- 230000000903 blocking effect Effects 0.000 description 23
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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- Lift Valve (AREA)
Abstract
The utility model relates to the technical field of stop valves and discloses a stop valve for a nuclear power station, which effectively solves the problem that the height of a bottom groove is lower than that of a pipeline at present, fluid is possibly accumulated in the bottom groove, so that the sealing effect is poor.
Description
Technical Field
The utility model belongs to the technical field of stop valves, and particularly relates to a stop valve for a nuclear power station.
Background
According to the patent document with the publication number of CN210716047U, the utility model is named "a stop valve for self-sealing power station", and the specification thereof is described as follows: when the stop valve is closed, the upper adjusting rod is screwed down by rotating the adjusting handle, so that the valve block is driven to move down, the liquid inlet is sealed, the adjusting rod is screwed down continuously, and the liquid outlet is further sealed until the valve block enters the bottom groove; and then, the pressing block is screwed down, so that the pressing block presses the sealing block to further seal the valve port, and leakage of fluid from the valve port due to poor sealing performance of the valve block is prevented. When manual adjustment is difficult, a motor-driven handle can be used to adjust the switch of the stop valve; the following drawbacks still remain:
because the height of the bottom groove is lower than that of the pipeline, when the pressing block is pressed down, fluid can be possibly accumulated in the bottom groove, so that the pressing block and the bottom groove cannot be tightly attached, and the sealing effect is poor.
Disclosure of Invention
Aiming at the situation, in order to overcome the defects of the prior art, the utility model provides the stop valve for the nuclear power station, which effectively solves the problem that the current bottom groove is lower than a pipeline in height, and fluid is possibly accumulated in the bottom groove, so that the sealing effect is poor.
In order to achieve the above purpose, the present utility model provides the following technical solutions: a stop valve for a nuclear power station comprises a connecting valve body, wherein a liquid inlet pipe is arranged on one side of the connecting valve body, a liquid outlet pipe is arranged on the other side of the connecting valve body, and a sealing assembly is arranged in the connecting valve body;
the sealing component comprises an upper baffle plug arranged inside the connecting valve body, a lower baffle plug is arranged below the upper baffle plug, the outer wall of the lower baffle plug is tightly attached to the outer wall of the upper baffle plug, the bottom wall of the lower baffle plug is tightly attached to the inner bottom wall of the connecting valve body, the inner bottom wall of the connecting valve body is located below the liquid inlet pipe and the liquid outlet pipe, the top end of the lower baffle plug is provided with a top block, the bottom end of the upper baffle plug is provided with a bottom groove, and the inner wall of the bottom groove is tightly attached to the top wall of the top block.
Preferably, the liquid inlet pipe and the liquid outlet pipe are respectively positioned at two sides of the upper baffle plug, and the top block is arranged in a cone shape.
Preferably, the top of the upper baffle plug is provided with a screw rod which is in threaded connection with the top wall of the connecting valve body, and the top end of the screw rod is provided with a rotating handle.
Preferably, the bottom of screw rod is installed spacing commentaries on classics piece, and spacing commentaries on classics piece rotates and installs in the inside of spacing commentaries on classics groove, and spacing commentaries on classics groove sets up in the top that keeps off the stopper.
Preferably, the top of the lower stop plug is symmetrically provided with pull rods, the upper stop plug is symmetrically provided with rod grooves, the pull rods penetrate through the rod grooves to the top of the connecting valve body, and the top plate is arranged at the top of the pull rods.
Preferably, the fixed cylinder is installed on the top of connecting the valve body, and the inside movable mounting of fixed cylinder has the fly leaf, and the connecting rod is installed on the top of fly leaf, and the top board fixed connection of connecting rod, the spring is installed on the top of fly leaf, the top and the interior roof fixed connection of fixed cylinder of spring.
Preferably, the magnetic blocks are symmetrically arranged at the top end of the movable plate, the electromagnets are symmetrically arranged at the top end of the fixed cylinder, the electromagnets are externally connected with a power supply, and the electromagnets are magnetically connected with the magnetic blocks.
Compared with the prior art, the utility model has the beneficial effects that:
(1) According to the utility model, when the liquid inlet pipe and the liquid outlet pipe are required to be cut off, the lower baffle plug is lifted upwards, so that the top end of the lower baffle plug moves to the position above the inner bottom wall of the liquid inlet pipe, and the top block is conical, so that after the upper baffle plug moves downwards, fluid between the upper baffle plug and the lower baffle plug is conveniently discharged, the fluid flow is avoided, and the sealing effect in the cut-off process is improved;
(2) This novel through keep off stopper setting under and connect the bottom of valve body, and keep off the outer wall of stopper down and connect the inner wall contact of valve body, when keeping off the stopper down and remove, the fluid that feed liquor pipe and drain pipe circulate can not enter into the bottom of connecting the valve body to further reduce the fluid and flow and deposit, improve the sealed effect when stopping.
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.
In the drawings:
FIG. 1 is a schematic diagram of a shut-off valve for a nuclear power plant according to the present utility model;
FIG. 2 is a schematic view of the internal structure of the connecting valve body of the present utility model;
FIG. 3 is a schematic view of a seal assembly according to the present utility model;
FIG. 4 is a schematic view of the top plate structure of the present utility model;
in the figure: 1. connecting the valve body; 2. a liquid inlet pipe; 3. a liquid outlet pipe; 4. a seal assembly; 401. a blocking plug is arranged; 402. a screw; 403. a rotating handle; 404. limiting rotating grooves; 405. limiting rotating blocks; 406. a bottom groove; 407. a lower stopper; 408. a top block; 409. a pull rod; 410. a rod groove; 411. a top plate; 412. a fixed cylinder; 413. a movable plate; 414. a connecting rod; 415. a spring; 416. a magnetic block; 417. an electromagnet.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the 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 first embodiment is shown in fig. 1-4, the utility model comprises a connecting valve body 1, a liquid inlet pipe 2 is arranged on one side of the connecting valve body 1, a liquid outlet pipe 3 is arranged on the other side of the connecting valve body 1, and a sealing component 4 is arranged in the connecting valve body 1;
the sealing component 4 comprises an upper baffle plug 401 arranged in the connecting valve body 1, a lower baffle plug 407 is arranged below the upper baffle plug 401, the outer wall of the lower baffle plug 407 and the outer wall of the upper baffle plug 401 are tightly attached to the inner wall of the connecting valve body 1, the bottom wall of the lower baffle plug 407 is tightly attached to the inner bottom wall of the connecting valve body 1, the inner bottom wall of the connecting valve body 1 is positioned below the liquid inlet pipe 2 and the liquid outlet pipe 3, a top block 408 is arranged at the top end of the lower baffle plug 407, a bottom groove 406 is arranged at the bottom end of the upper baffle plug 401, the inner wall of the bottom groove 406 is tightly attached to the top wall of the top block 408, the liquid inlet pipe 2 and the liquid outlet pipe 3 are respectively positioned at two sides of the upper baffle plug 401, the top block 408 is in a cone shape, a screw 402 is arranged at the top end of the upper baffle plug 401, the screw 402 is in threaded connection with the top wall of the connecting valve body 1, a rotating handle 403 is arranged at the top end of the screw 402, a limiting rotating block 405 is arranged at the bottom end of the screw 402, the limiting rotating block 405 is rotatably arranged in the limiting rotating groove 404, the limit rotating groove 404 is arranged at the top end of the upper baffle plug 401, the top end of the lower baffle plug 407 is symmetrically provided with a pull rod 409, the upper baffle plug 401 is symmetrically provided with a rod groove 410, the pull rod 409 penetrates through the rod groove 410 to the top end of the connecting valve body 1, the top end of the pull rod 409 is provided with a top plate 411, the top end of the connecting valve body 1 is provided with a fixed cylinder 412, the inside of the fixed cylinder 412 is movably provided with a movable plate 413, the top end of the movable plate 413 is provided with a connecting rod 414, the top end of the connecting rod 414 is fixedly connected with the top plate 411, the top end of the movable plate 413 is provided with a spring 415, the top end of the spring 415 is fixedly connected with the inner top wall of the fixed cylinder 412, the top end of the movable plate 413 is symmetrically provided with a magnetic block 416, the top end of the fixed cylinder 412 is symmetrically provided with an electromagnet 417, the electromagnet 417 is externally connected with a power supply, the electromagnet 417 is magnetically connected with the magnetic block 416, when the liquid inlet pipe 2 and the liquid outlet pipe 3 need to be cut off, the lower blocking plug 407 is lifted upwards, so that the top end of the lower blocking plug 407 moves to the upper side of the inner bottom wall of the liquid inlet pipe 2, and the top block 408 is conical, so that after the upper blocking plug 401 moves downwards, fluid between the upper blocking plug 401 and the lower blocking plug 407 is discharged, fluid flow is avoided, the sealing effect during cut-off is improved, the lower blocking plug 407 is arranged at the bottom of the connecting valve body 1, the outer wall of the lower blocking plug 407 is contacted with the inner wall of the connecting valve body 1, and when the lower blocking plug 407 moves, fluid flowing through the liquid inlet pipe 2 and the liquid outlet pipe 3 cannot enter the bottom of the connecting valve body 1, so that the fluid flow is further reduced, and the sealing effect during cut-off is improved.
Working principle: when the valve is required to be cut off, the electromagnet 417 is electrified to generate attractive force on the magnetic block 416 so as to drive the movable plate 413 to move upwards, thereby driving the lower blocking plug 407 to move upwards, enabling the top block 408 to move to the upper side of the bottom wall of the liquid inlet pipe 2, then screwing the screw 402, enabling the upper blocking plug 401 to move downwards, and due to the conical arrangement of the top block 408, after the upper blocking plug 401 moves downwards, fluid between the upper blocking plug 401 and the lower blocking plug 407 is conveniently discharged, after the upper blocking plug 401 and the lower blocking plug 407 form a whole, the upper blocking plug 401 and the lower blocking plug 407 move downwards together to separate the liquid inlet pipe 2 from the liquid outlet pipe 3, the sealing effect is improved, then the screw 402 rotates so that the upper blocking plug 401 and the lower blocking plug 407 move downwards together, the bottom wall of the lower blocking plug 407 is tightly attached to the inner bottom wall of the connecting valve body 1, and due to the existence of the lower blocking plug 407, the lower blocking plug 407 cannot retain fluid.
Claims (7)
1. Stop valve for nuclear power plants, comprising a connecting valve body (1), characterized in that: a liquid inlet pipe (2) is arranged on one side of the connecting valve body (1), a liquid outlet pipe (3) is arranged on the other side of the connecting valve body (1), and a sealing assembly (4) is arranged in the connecting valve body (1);
seal assembly (4) are including installing in connecting the inside top stopper (401) of valve body (1), the below of going up stopper (401) is equipped with down stopper (407), the outer wall of stopper (407) down and the outer wall of last stopper (401) all hug closely with the inner wall of connecting valve body (1), the diapire of stopper (407) is hugged closely with the interior bottom wall of connecting valve body (1 down, the interior bottom wall of connecting valve body (1) is located the below of feed liquor pipe (2) and drain pipe (3), kicking block (408) are installed on the top of stopper (407) down, bottom groove (406) have been seted up to the bottom of last stopper (401), the inner wall of bottom groove (406) hugs closely with the roof of kicking block (408).
2. A shut-off valve for a nuclear power plant as set forth in claim 1, wherein: the liquid inlet pipe (2) and the liquid outlet pipe (3) are respectively positioned at two sides of the upper baffle plug (401), and the top block (408) is arranged in a cone shape.
3. A shut-off valve for a nuclear power plant as set forth in claim 1, wherein: the top of the upper baffle plug (401) is provided with a screw rod (402), the screw rod (402) is in threaded connection with the top wall of the connecting valve body (1), and a rotating handle (403) is arranged at the top of the screw rod (402).
4. A shut-off valve for a nuclear power plant as set forth in claim 3, wherein: the bottom of screw rod (402) is installed spacing commentaries on classics piece (405), and spacing commentaries on classics piece (405) rotate and install in the inside of spacing change groove (404), and the top of keeping off stopper (401) is seted up in spacing change groove (404).
5. A shut-off valve for a nuclear power plant as set forth in claim 1, wherein: pull rods (409) are symmetrically arranged at the top ends of the lower stop plugs (407), rod grooves (410) are symmetrically formed in the upper stop plugs (401), the pull rods (409) penetrate through the rod grooves (410) to penetrate to the top ends of the connecting valve bodies (1), and top plates (411) are arranged at the top ends of the pull rods (409).
6. A shut-off valve for a nuclear power plant as set forth in claim 5, wherein: the top of connecting valve body (1) is installed fixed section of thick bamboo (412), and fixed section of thick bamboo (412)'s inside movable mounting has fly leaf (413), and connecting rod (414) are installed on the top of fly leaf (413), and spring (415) are installed on the top of fly leaf (413) top and top board (411) fixed connection, the top of spring (415) and the interior roof fixed connection of fixed section of thick bamboo (412).
7. A shut-off valve for a nuclear power plant as set forth in claim 6, wherein: the magnetic blocks (416) are symmetrically arranged at the top ends of the movable plates (413), the electromagnets (417) are symmetrically arranged at the top ends of the fixed cylinders (412), the electromagnets (417) are externally connected with a power supply, and the electromagnets (417) are magnetically connected with the magnetic blocks (416).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320948150.XU CN220204716U (en) | 2023-04-24 | 2023-04-24 | Stop valve for nuclear power station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320948150.XU CN220204716U (en) | 2023-04-24 | 2023-04-24 | Stop valve for nuclear power station |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220204716U true CN220204716U (en) | 2023-12-19 |
Family
ID=89148566
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320948150.XU Active CN220204716U (en) | 2023-04-24 | 2023-04-24 | Stop valve for nuclear power station |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220204716U (en) |
-
2023
- 2023-04-24 CN CN202320948150.XU patent/CN220204716U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |