CN216590107U - Check valve for nuclear power plant - Google Patents
Check valve for nuclear power plant Download PDFInfo
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- CN216590107U CN216590107U CN202122408379.8U CN202122408379U CN216590107U CN 216590107 U CN216590107 U CN 216590107U CN 202122408379 U CN202122408379 U CN 202122408379U CN 216590107 U CN216590107 U CN 216590107U
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- valve plate
- valve
- valve body
- nuclear power
- connecting rod
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Abstract
A check valve for nuclear power station is composed of valve body and switch unit consisting of power source and connecting rod drive mechanism, valve plate connecting part with connecting rod drive mechanism, valve plate locating structure consisting of valve plate locating part and valve body locating parts, and valve plate locating part and connecting rod drive mechanism for driving said valve plate to open or close, the rotation that makes the valve plate is gone on along the valve plate movable rod all the time, avoids appearing the deviation.
Description
Technical Field
The utility model relates to the technical field of check valves, in particular to a check valve for a nuclear power station.
Background
The check valve that is used for nuclear power station operational environment down now, the valve plate in the valve body is great owing to the impact force of the medium that receives, uses for a long time the back, and the unstability of valve plate can appear, needs regularly to overhaul the valve plate, and the position of firm valve plate wastes time and energy, consequently needs a kind of check valve that can advance line location to the valve plate position urgently.
Disclosure of Invention
In view of the above, the present invention provides a check valve for a nuclear power plant.
In order to achieve the purpose, the utility model provides the following technical scheme:
the utility model provides a check valve for nuclear power station, includes valve body and switching device, set up the valve plate in the valve body, switching device's one end is stretched into the valve pocket and is connected with the valve plate, switching device includes power supply and connecting rod drive mechanism, connecting rod drive mechanism stretches into the valve pocket and is connected with the valve plate, set up the valve plate connecting portion that correspond connecting rod drive mechanism on the valve plate, connecting rod drive mechanism and valve plate connecting portion swing joint, connecting rod drive mechanism drives the valve plate and opens and close in the valve pocket under the drive of power supply, set up valve plate location structure in the valve body, valve plate location structure is including setting up valve plate location portion on the valve plate and setting up the valve body location portion in valve body inner wall both sides, valve plate location portion is connected with valve body location portion and is fixed a position the valve plate.
The preferred, valve plate location portion has the protruding lug structure of the protruding formation in one side of valve plate connecting portion for the valve plate, just valve plate location portion sets up the both ends in valve plate connecting portion one side, all set up the rotation logical groove on the valve plate location portion, it sets up the valve plate movable rod to rotate to lead to the inslot, the both ends of valve plate movable rod are connected with the valve body location portion of valve body inner wall both sides, the valve plate uses the valve plate movable rod to rotate as the axle under switching device's drive.
The preferred, valve body location portion corresponds for valve body inner wall both sides and rotates the constant head tank that the logical groove position formed, the constant head tank all extends towards the direction of keeping away from the inside of valve body and forms, the both ends of valve plate movable rod stretch into corresponding constant head tank and valve body and rotate and be connected, the notch is seted up to the inside one side of valve body is kept away from to the constant head tank, notch department sets up sealed pedestal, sealed pedestal is connected fixedly with the edge of the notch of constant head tank.
Preferably, a sealing shaft sleeve is arranged on a part, close to the notch position of the positioning groove, of the valve plate movable rod, the sealing shaft sleeve is arranged on the valve plate movable rod, and the inner surface and the outer surface of the sealing shaft sleeve are correspondingly connected with the valve plate movable rod and the groove wall of the positioning groove in a sealing mode.
Preferably, the connecting rod transmission mechanism comprises a transmission rod connected with the power source and a connecting rod assembly arranged at one end, extending into the valve cavity, of the transmission rod, the connecting rod assembly comprises a connecting block and a movable pin shaft, the connecting block is arranged at the bottom end of the transmission rod, a rotating hole is formed in the connecting block, the movable pin shaft is horizontally arranged in the rotating hole, and two ends of the movable pin shaft are movably connected with the valve plate connecting portion.
Preferably, the valve plate connecting portion are two fixed blocks arranged on the valve plate, an assembly groove for the connecting block to stretch into is arranged between the fixed blocks, corresponding connecting holes are formed in the fixed blocks, and after the connecting block stretches into the assembly groove, the two ends of the movable pin shaft stretch into the connecting holes in the corresponding fixed blocks to be connected with the valve plate connecting portion in a rotating mode.
Preferably, a valve seat is further arranged in the valve body, the valve seat is arranged in an inclined mode, and an angle between the valve seat and the central axis of the valve body is 45-60 degrees.
The utility model has the beneficial effects that: according to the utility model, the transmission structure between the switching device driving the valve plate to move and the valve plate is set to be the connecting rod structure, so that when the valve plate is opened, the connecting rod transmission mechanism of the switching assembly drives the valve plate to rapidly separate from the sealing surface of the valve seat, and the valve plate movable rod on the valve plate can fix the rotating position of the valve plate, so that the valve plate can always rotate along the valve plate movable rod, and the deviation is avoided.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a front view structural section of the present invention;
FIG. 2 is a side view in cross-section;
fig. 3 is an enlarged view of a portion a of fig. 1.
Reference numerals:
1. the valve body, 2, a switching device, 3, a valve plate, 4, a power source, 5, a connecting rod transmission mechanism, 6, a valve plate connecting part, 7, a valve plate positioning structure, 8, a valve plate positioning part, 9, a valve body positioning part, 10, a rotating through groove, 11, a valve plate movable rod, 12, a positioning groove, 13, a groove opening, 14, a sealing seat body, 15, a transmission rod, 16, a connecting rod assembly, 17, a connecting block, 18, a movable pin shaft, 19, a rotating hole, 20, an assembling groove, 21, a connecting hole, 22, a sealing shaft sleeve, 23 and a valve seat.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The utility model will be further described with reference to the accompanying drawings.
The utility model provides the following technical scheme:
as shown in the attached figures 1-3, the utility model discloses a check valve for a nuclear power station, which comprises a valve body 1 and a switch device 2, a valve plate 3 is arranged in the valve body 1, one end of the switch device 2 extends into the valve body 1 and is connected with the valve plate 3, the switch device 2 comprises a power source 4 and a connecting rod transmission mechanism 5, the connecting rod transmission mechanism 5 extends into the valve body 1 and is connected with the valve plate 3, the valve plate 3 is provided with a valve plate connecting part 6 corresponding to the connecting rod transmission mechanism 5, the connecting rod transmission mechanism 5 is movably connected with the valve plate connecting part 6, the connecting rod transmission mechanism 5 drives the valve plate 3 to open and close in the valve body 1 under the driving of the power source 4, set up valve plate location structure 7 in the valve body 1, valve plate location structure 7 is including setting up valve plate location portion 8 on valve plate 3 and setting up the valve body location portion 9 in 1 inner wall both sides of valve body, valve plate location portion 8 is connected with valve plate location portion and is fixed a position valve plate 3. Specifically, this design sets up to the connecting rod structure through the transmission structure between switching device 2 and the valve plate 3 that will drive the activity of valve plate 3 for valve plate 3 is when opening, and switching device 2's connecting rod drive mechanism 5 drives the quick disk seat 23 that breaks away from of valve plate 3 and seals the face, and valve plate movable rod 11 on the valve plate 3 can be fixed valve plate 3 pivoted position, makes the rotation of valve plate 3 go on along the valve plate movable rod all the time, avoids appearing the deviation.
Further, valve plate location portion 8 has the protruding lug structure that the one side protrusion of valve plate connecting portion 6 formed for valve plate 3, just valve plate location portion 8 sets up the both ends in valve plate connecting portion 6 one side, all set up on valve plate location portion 8 and rotate logical groove 10, it sets up valve plate movable rod 11 in the logical groove 10 to rotate, the both ends of valve plate movable rod 11 are connected with valve body location portion 9 of 1 inner wall both sides of valve body, valve plate 3 uses valve plate movable rod 11 to rotate as the axle under switching device 2's drive. Specifically, the setting of valve plate location portion 8 for valve plate 3 can be connected through fixing a position between valve plate movable rod 11 and valve body location portion 9, supports valve plate 3 through valve plate movable rod 11 and fixes a position inside 1 valve body, and valve plate 3 can use 3 locating levers of valve plate to be driven and rotate by switching device 2 as the axle, thereby carries out opening and closing control to the medium runner in the valve body 1.
Further, valve body location portion 9 corresponds for 1 inner wall both sides of valve body and rotates constant head tank 12 that logical groove 10 position formed, constant head tank 12 all extends towards the direction of keeping away from 1 inside of valve body and forms, the both ends of valve plate movable rod 11 stretch into corresponding constant head tank 12 and rotate with valve body 1 and be connected, notch 13 is seted up to one side that valve body 1 inside was kept away from to constant head tank 12, notch 13 department sets up sealed pedestal 14, sealed pedestal 14 is connected fixedly with the edge of notch 13 of constant head tank 12.
Further, link drive mechanism 5 includes the transfer line 15 that is connected with power supply 4 and sets up the link assembly 16 that stretches into valve body 1 one end at transfer line 15, link assembly 16 includes connecting block 17 and activity round pin axle 18, connecting block 17 sets up the bottom at transfer line 15, set up on the connecting block 17 and change hole 19, activity round pin axle 18 level sets up in changeing hole 19, activity round pin axle 18's both ends and valve plate connecting portion 6 swing joint. Further, valve plate connecting portion 6 is for setting up two fixed blocks on valve plate 3, set up the assembly groove 20 that supplies connecting block 17 to stretch into between the fixed block, set up corresponding connecting hole 21 on the fixed block, connecting block 17 stretches into behind the assembly groove 20, the both ends of activity round pin axle 18 stretch into connecting hole 21 and the valve plate connecting portion 6 rotation on corresponding fixed block and are connected. Specifically, drive valve plate 3 through adopting the connecting rod structure and open and close, power supply 4 of switching device 2 starts the back, drives transfer line 15 and carries out elevating movement, and connecting block 17 on the transfer line 15 is connected with valve plate connecting portion 6 through activity round pin axle 18, becomes linear motion through activity round pin axle 18 and uses valve plate movable rod 11 as the rotation of axle to open and close valve plate 3, make valve plate 3 can quick separation from disk seat 23.
In order to prevent that valve plate movable rod 11 can not take place or the reducing wear phenomenon at long-term rotation in-process, valve plate movable rod 11 sets up sealed axle sleeve 22 in the part that is close to notch 13 position of constant head tank 12, sealed axle sleeve 22 cover is established on valve plate movable rod 11, just sealed axle sleeve 22's internal surface and surface correspond and valve plate movable rod 11 and constant head tank 12's cell wall seal meet, and when sealed axle sleeve 22 set up can reducing wear, seal valve plate movable rod 11 and constant head tank 12 diameter, prevent that the medium from flowing out from clearance between them.
Further, a valve seat 23 is further arranged in the valve body 1, the valve seat 23 is arranged in an inclined mode, the angle between the valve seat 23 and the central axis of the valve body 1 is 45-60 degrees, specifically, the inclined valve seat effectively improves the response speed of the valve to the flowing direction of the medium, and the flowing force and the gravity of the medium are better utilized.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (7)
1. A check valve for a nuclear power plant, characterized by: including valve body and switching device, set up the valve plate in the valve body, switching device's one end is stretched into the valve pocket and is connected with the valve plate, switching device includes power supply and connecting rod drive mechanism, connecting rod drive mechanism stretches into the valve pocket and is connected with the valve plate, set up the valve plate connecting portion that correspond connecting rod drive mechanism on the valve plate, connecting rod drive mechanism and valve plate connecting portion swing joint, connecting rod drive mechanism drives the valve plate and opens and close in the valve pocket under the drive of power supply, set up valve plate location structure in the valve body, valve plate location structure is including setting up valve plate location portion on the valve plate and setting up the valve body location portion in valve body inner wall both sides, valve plate location portion is connected with valve body location portion and is fixed a position the valve plate.
2. The check valve for nuclear power plant as claimed in claim 1, wherein: valve plate location portion has the protruding lug structure of forming of one side protrusion of valve plate connecting portion for the valve plate, just valve plate location portion sets up the both ends in valve plate connecting portion one side, all set up the rotation logical groove on the valve plate location portion, rotate and lead to the inslot and set up the valve plate movable rod, the both ends of valve plate movable rod are connected with the valve body location portion of valve body inner wall both sides, the valve plate uses the valve plate movable rod to rotate as the axle under switching device's drive.
3. The check valve for a nuclear power plant of claim 2, wherein: valve body location portion corresponds for valve body inner wall both sides and rotates the constant head tank that the logical groove position formed, the constant head tank all extends towards the direction of keeping away from the valve body inside and forms, the both ends of valve plate movable rod stretch into corresponding constant head tank and valve body and rotate and be connected, the notch is seted up to the inside one side of valve body is kept away from to the constant head tank, notch department sets up sealed pedestal, sealed pedestal is connected fixedly with the edge of the notch of constant head tank.
4. The check valve for a nuclear power plant of claim 3, wherein: the valve plate movable rod is provided with a sealing shaft sleeve on the part close to the notch position of the positioning groove, the sealing shaft sleeve is sleeved on the valve plate movable rod, and the inner surface and the outer surface of the sealing shaft sleeve are correspondingly connected with the valve plate movable rod and the groove wall of the positioning groove in a sealing manner.
5. The check valve for nuclear power plant as claimed in claim 1, wherein: the connecting rod transmission mechanism comprises a transmission rod connected with a power source and a connecting rod assembly arranged at one end, extending into the valve cavity, of the transmission rod, the connecting rod assembly comprises a connecting block and a movable pin shaft, the connecting block is arranged at the bottom end of the transmission rod, a rotating hole is formed in the connecting block, the movable pin shaft is horizontally arranged in the rotating hole, and two ends of the movable pin shaft are movably connected with the valve plate connecting portion.
6. The check valve for nuclear power plant as recited in claim 5, wherein: the valve plate connecting portion are two fixed blocks of setting on the valve plate, set up the assembly groove that supplies the connecting block to stretch into between the fixed block, set up corresponding connecting hole on the fixed block, after the connecting block stretches into the assembly groove, the both ends of activity round pin axle stretch into connecting hole and valve plate connecting portion rotation on corresponding the fixed block and are connected.
7. The check valve for nuclear power plant as claimed in claim 1, wherein: the valve body is also internally provided with a valve seat which is obliquely arranged, and the angle between the valve seat and the central axis of the valve body is 45-60 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122408379.8U CN216590107U (en) | 2021-09-30 | 2021-09-30 | Check valve for nuclear power plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122408379.8U CN216590107U (en) | 2021-09-30 | 2021-09-30 | Check valve for nuclear power plant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216590107U true CN216590107U (en) | 2022-05-24 |
Family
ID=81639157
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122408379.8U Active CN216590107U (en) | 2021-09-30 | 2021-09-30 | Check valve for nuclear power plant |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216590107U (en) |
-
2021
- 2021-09-30 CN CN202122408379.8U patent/CN216590107U/en active Active
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