CN217562171U - Helium stop valve simulator - Google Patents
Helium stop valve simulator Download PDFInfo
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- CN217562171U CN217562171U CN202221041072.7U CN202221041072U CN217562171U CN 217562171 U CN217562171 U CN 217562171U CN 202221041072 U CN202221041072 U CN 202221041072U CN 217562171 U CN217562171 U CN 217562171U
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- valve
- helium
- valve rod
- bellows
- simulator
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- 229910052734 helium Inorganic materials 0.000 title claims abstract description 41
- 239000001307 helium Substances 0.000 title claims abstract description 41
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 title claims abstract description 38
- 238000007789 sealing Methods 0.000 claims abstract description 23
- 230000005540 biological transmission Effects 0.000 claims abstract description 15
- 238000012360 testing method Methods 0.000 claims abstract description 8
- 238000003466 welding Methods 0.000 claims description 4
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000004891 communication Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 4
- 230000008569 process Effects 0.000 abstract description 4
- 238000012549 training Methods 0.000 abstract description 4
- 238000001514 detection method Methods 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 3
- 150000002371 helium Chemical class 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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Abstract
The utility model provides a helium stop valve simulates body, the valve body is fixed in the disk seat upper end, the valve gap can be dismantled and be fixed in the valve body upper end, the vertical direction of valve rod runs through the valve gap and stretches into the cavity in the valve body, the case locate in the cavity and with cavity inner wall clearance fit, the case is connected in the valve rod lower extreme, transmission locates the valve gap upper end and connects in the valve rod, transmission drives the valve rod and removes in vertical direction, bellows cover is in the valve rod outside and the upper end sealing connection of bellows in the valve rod outside, the lower extreme sealing connection of bellows is in the valve cap up end, the vertical removal of valve rod drives the flexible of bellows, the lateral wall of bellows is connected with the helium and examines the interface, be provided with the test interface that feeds through the valve body cavity on the disk seat. The beneficial effects of the utility model are that: the structure is simplified, the manufacturing cost is effectively reduced, and the requirements of training and grinding tests are met; the grinding process of the helium stop valve can be completely simulated; the simulator has the function of helium leakage detection after grinding and repairing.
Description
Technical Field
The utility model relates to the technical field of valves, especially, relate to a helium stop valve simulation body.
Background
The shut-off valve is also called a shut-off valve, and belongs to a forced sealing type valve, so when the valve is closed, pressure must be applied to the valve clack to force the sealing surface not to leak. When the medium enters the valve from the lower part of the valve clack, the resistance to be overcome by the operating force is the friction force between the valve rod and the packing and the thrust generated by the pressure of the medium, the force for closing the valve is larger than the force for opening the valve, so the diameter of the valve rod is larger, otherwise the failure of the valve rod bending can occur. The connection mode is divided into three types: flange connection, screw thread connection and welding connection.
The stop valve is an extremely important cut-off valve, the sealing of the stop valve is realized by applying torque to a valve rod, and the valve rod applies pressure to a valve clack in the axial direction, so that a sealing surface of the valve clack is tightly attached to a sealing surface of a valve seat, and the leakage of a medium along a gap between the sealing surfaces is prevented.
The helium valve is high in sealing requirement, and two ends of the flange are generally connected in a welding mode. When the valve leaks internally, the valve needs to be ground and repaired on line. In order to reduce the maintenance time of technicians and improve the success rate of primary grinding, personnel training needs to be carried out by utilizing a valve simulator. The valve analogue body generally utilizes former valve to process transformation and accomplish, and the valve analogue body that this application relates to reduces the cost and satisfies training and grinding test demand.
Disclosure of Invention
An object of the utility model is to provide a helium stop valve analog body can simulate valve in-service maintenance process to can carry out the helium leak hunting to the sealed effect after grinding.
The embodiment of the application provides a helium stop valve simulator, including valve body, disk seat, valve rod, case, valve gap, transmission and bellows, the valve body is fixed in the disk seat upper end, the valve gap can be dismantled and be fixed in the valve body upper end, the vertical direction of valve rod runs through the valve gap and stretches into the cavity to the valve body in, the case locate in the cavity and with cavity inner wall clearance fit, the case is connected in the valve rod lower extreme and drives the direction removal that the case moved towards or kept away from the disk seat through the valve rod, transmission locates the valve gap upper end and connects in the valve rod, transmission drives the valve rod and removes in vertical direction, bellows cover is in the upper end sealing connection in the valve rod outside and bellows, the lower extreme sealing connection of bellows is in the valve gap up end, the vertical removal of valve rod drives the flexible of bellows, the lateral wall of bellows is connected with the helium and examines the interface, be provided with the experimental interface that feeds through the valve body cavity on the disk seat.
In some embodiments, the transmission device comprises a screw rod and connecting plates, the connecting plates are provided with two symmetrical sides which are fixedly connected to the upper end of the valve rod, each connecting plate is connected with one screw rod in a penetrating mode, the lower end of each screw rod is fixedly connected to the valve cover, each screw rod is connected with an adjusting nut in a threaded mode, the lifting of the valve rod is adjusted by adjusting the vertical height of the connecting plates, and the connecting plates are locked through the adjusting nuts after the positions of the connecting plates on the screw rods are fixed.
In some embodiments, two adjusting nuts are connected to each screw, the two adjusting nuts on a single screw are respectively located on the upper side and the lower side of the connecting plate, and the connecting plate is locked by the upper adjusting nut and the lower adjusting nut after being fixed in position on the screws.
In some embodiments, the lower end of the valve rod is connected with the valve core through threads.
In some embodiments, the valve cap is provided with a guide sleeve at the joint of the valve cap and the valve rod.
In some embodiments, the bonnet is fixedly attached to the upper end of the valve body by a plurality of bolts.
In some embodiments, a sealing ring is arranged between the lower end face of the valve cover and the upper end face of the valve body.
In some embodiments, the valve body is fixedly connected with the valve seat by welding.
In some embodiments, the number of the bolts is 4, and the bolts are uniformly distributed at the edge of the valve cover.
The utility model has the advantages that:
(1) The structure is simplified, the manufacturing cost is effectively reduced, and the requirements of training and grinding tests are met;
(2) The grinding process of the helium stop valve can be completely simulated;
(3) And the simulator has the function of helium leakage detection after grinding and repairing.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent from and readily appreciated by reference to the following description of the embodiments taken in conjunction with the accompanying drawings,
wherein:
FIG. 1 is a schematic structural diagram of a helium stop valve simulator in an embodiment of the present invention;
FIG. 2 is a front view of a helium stop valve simulator in an embodiment of the present invention;
FIG. 3 isbase:Sub>A cross-sectional view taken along the line A-A in FIG. 2;
FIG. 4 is a schematic diagram of an internal structure of a helium cut-off valve simulator in an embodiment of the present invention;
FIG. 5 is a schematic diagram of the cooperation among the transmission device, the valve rod and the valve cover of the analog body of the helium stop valve in the embodiment of the invention;
reference numerals:
1-adjusting the nut; 2-bolt; 3-valve cover; 4-screw rod; 5-valve stem; 6-connecting plates; 7-helium detection interface; 8-a bellows; 9-a valve body; 10-a valve seat; 11-a test interface; 12-a valve core; 13-sealing ring.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.
The helium stop valve simulator according to the embodiment of the present invention will be described below with reference to the drawings.
As shown in fig. 1 to 5, an embodiment of the present application provides a helium stop valve simulator, which is particularly suitable for use in a helium atmosphere. This helium stop valve simulate body includes valve body 9, disk seat 10, valve rod 5, case 12, valve gap 3, transmission and bellows 8, 9 welded fastening in disk seat 10 upper ends of valve body, valve gap 3 can be dismantled and be fixed in 9 upper ends of valve body, 5 vertical directions of valve rod run through valve gap 3 and stretch into the cavity to the valve body 9 in, case 12 locate in the cavity and with cavity inner wall clearance fit, case 12 is connected in 5 lower extremes of valve rod and is driven case 12 orientation or keep away from the direction removal of disk seat 10 through valve rod 5, transmission locates 3 upper ends of valve gap and connects in valve rod 5, transmission drives valve rod 5 and removes in vertical direction, 8 covers in 5 outsides of valve rod and bellows 8's upper end sealing connection in the 5 outsides of valve rod, 8's lower extreme sealing connection in valve gap 3 up end, 5 vertical movements of valve rod drive bellows 8 are flexible. The connection mode of the bellows 8 is adopted to ensure the tightness of the valve rod 5 and the valve cover 3.
The lateral wall of bellows 8 is connected with helium and examines interface 7, is provided with the test interface 11 of intercommunication valve body 9 cavity on the disk seat 10, is convenient for to grind and verifies sealing performance after experimental completion.
As shown in fig. 5, the transmission device comprises a screw rod 4 and a connecting plate 6, the connecting plate 6 is provided with two symmetrical sides which are fixedly connected to the upper end of the valve rod 5, each connecting plate 6 is provided with one screw rod 4 in a penetrating connection mode, the lower end of each screw rod 4 is fixedly connected to the valve cover 3, each screw rod 4 is provided with an adjusting nut 1 in a threaded connection mode, the valve rod 5 is adjusted to lift through the vertical height of the adjusting connecting plate 6, and the connecting plate 6 is locked through the adjusting nuts 1 after being fixed on the screw rods 4.
Two adjusting nuts 1 are connected to each screw rod 4, the two adjusting nuts 1 on a single screw rod 4 are respectively located on the upper side and the lower side of the connecting plate 6, and the connecting plate 6 is locked by the upper adjusting nut 1 and the lower adjusting nut 1 after being fixed on the screw rods 4.
In some specific embodiments, the lower end of the valve stem 5 is connected with the valve core 12 through threads.
In some embodiments, the valve cap 3 is provided with a guide sleeve at the joint with the valve rod 5, in order to ensure the central positioning of the valve rod 5.
In some specific embodiments, the bonnet 3 is fixedly connected to the upper end of the valve body 9 through 4 bolts 2, and the bolts 2 are uniformly distributed at the edge of the bonnet 3. A sealing ring 13 is arranged between the lower end face of the valve cover 3 and the upper end face of the valve body 9, and the sealing ring 13 is an O-shaped ring and is arranged in a groove in the upper end face of the valve body 9.
The helium stop valve simulator only keeps the valve seat sealing surface involved in valve grinding, removes the volume of a valve flow channel, simplifies the valve body structure and effectively reduces the manufacturing cost.
When the tightness of the stop valve needs to be tested, helium is introduced into the valve body 9 from the test interface 11, and the valve rod 5 and the valve core 12 are driven to move up and down by adjusting the positions of the 4 adjusting nuts 1, so that the opening and closing of the valve are simulated. At the same time, helium outflow is detected at the helium detecting port 7, and if the tightness is not good, helium enters the bellows 8 and flows out of the helium detecting port 7. If the sealing is good, there is no helium outflow.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship indicated based on the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless explicitly defined otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.
In the present application, unless expressly stated or limited otherwise, a first feature "on" or "under" a second feature may be directly contacting the second feature or the first and second features may be indirectly contacting the second feature through intervening media. Also, a first feature "on," "above," and "over" a second feature may be directly on or obliquely above the second feature, or simply mean that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
In the present disclosure, the terms "one embodiment," "some embodiments," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present disclosure. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Moreover, various embodiments or examples and features of various embodiments or examples described in this specification can be combined and combined by one skilled in the art without being mutually inconsistent.
While embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations of the above embodiments may be made by those of ordinary skill in the art without departing from the scope of the present invention.
Claims (9)
1. The utility model provides a helium stop valve simulator, a serial communication port, including valve body, disk seat, the valve rod, the case, the valve gap, transmission and bellows, the valve body is fixed in the disk seat upper end, the valve gap can be dismantled and be fixed in the valve body upper end, the vertical direction of valve rod runs through the valve gap and stretches into the cavity in the valve body, the case is located in the cavity and with cavity inner wall clearance fit, the case is connected in the valve rod lower extreme and drives the direction removal of case orientation or keeping away from the disk seat through the valve rod, transmission locates the valve gap upper end and connects in the valve rod, transmission drives the valve rod and removes in vertical direction, bellows cover is in the upper end sealing connection in the valve rod outside and bellows, the lower extreme sealing connection of bellows is in the valve gap up end, the vertical removal of valve rod drives the flexible of bellows, the lateral wall of bellows is connected with the helium and examines the interface, be provided with the test interface that communicates the valve body cavity on the disk seat.
2. The helium stop valve simulator of claim 1, wherein the transmission device comprises two screws and two connecting plates, the two connecting plates are fixedly connected to two symmetrical sides of the upper end of the valve rod, each connecting plate is connected with one screw in a penetrating manner, the lower end of each screw is fixedly connected to the valve cover, each screw is in threaded connection with an adjusting nut, the lifting of the valve rod is adjusted by adjusting the vertical height of the connecting plate, and the connecting plate is locked by the adjusting nuts after the position on the screws is fixed.
3. The helium stop valve simulator of claim 2, wherein each screw is connected with two adjusting nuts, the two adjusting nuts on a single screw are respectively located at the upper side and the lower side of the connecting plate, and the connecting plate is locked by the upper adjusting nut and the lower adjusting nut after being fixed in position on the screw.
4. The helium stop valve simulator of claim 1, wherein the lower end of the valve rod is in threaded connection with the valve core.
5. The helium stop valve simulator of claim 1, wherein the valve cover is provided with a guide sleeve at the joint with the valve stem.
6. The helium stop valve simulator of claim 1, wherein the valve cover is fixedly attached to the upper end of the valve body by a plurality of bolts.
7. The helium stop valve simulator of any one of claims 1 to 6, wherein a sealing ring is arranged between the lower end face of the valve cover and the upper end face of the valve body.
8. The helium stop valve simulator of claim 1, wherein the valve body is fixedly connected to the valve seat by welding.
9. The helium stop valve simulator of claim 6, wherein 4 bolts are provided and are uniformly distributed at the edge of the valve cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221041072.7U CN217562171U (en) | 2022-04-28 | 2022-04-28 | Helium stop valve simulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221041072.7U CN217562171U (en) | 2022-04-28 | 2022-04-28 | Helium stop valve simulator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217562171U true CN217562171U (en) | 2022-10-11 |
Family
ID=83471756
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221041072.7U Active CN217562171U (en) | 2022-04-28 | 2022-04-28 | Helium stop valve simulator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217562171U (en) |
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2022
- 2022-04-28 CN CN202221041072.7U patent/CN217562171U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Huaneng Hainan Changjiang Nuclear Power Co.,Ltd. Assignor: Huaneng Nuclear Energy Technology Research Institute Co.,Ltd. Contract record no.: X2023110000135 Denomination of utility model: A helium shut-off valve simulator Granted publication date: 20221011 License type: Common License Record date: 20231127 |