CN220037611U - Emergency intervention tool for water supply regulating valve - Google Patents
Emergency intervention tool for water supply regulating valve Download PDFInfo
- Publication number
- CN220037611U CN220037611U CN202321459606.2U CN202321459606U CN220037611U CN 220037611 U CN220037611 U CN 220037611U CN 202321459606 U CN202321459606 U CN 202321459606U CN 220037611 U CN220037611 U CN 220037611U
- Authority
- CN
- China
- Prior art keywords
- regulating valve
- intervention tool
- packing
- water supply
- emergency intervention
- 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.)
- Active
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 61
- 230000001105 regulatory effect Effects 0.000 title claims abstract description 55
- 238000012856 packing Methods 0.000 claims abstract description 33
- 230000000712 assembly Effects 0.000 claims abstract description 8
- 238000000429 assembly Methods 0.000 claims abstract description 8
- 230000000149 penetrating effect Effects 0.000 claims abstract description 4
- 230000008878 coupling Effects 0.000 claims description 12
- 238000010168 coupling process Methods 0.000 claims description 12
- 238000005859 coupling reaction Methods 0.000 claims description 12
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000007935 neutral effect Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 230000009191 jumping Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Abstract
The utility model discloses an emergency intervention tool of a water supply regulating valve, which comprises a packing, a valve rod penetrating through the middle of the packing and a coupler positioned above the packing and connected with the valve rod, wherein the coupler is arranged on the upper part of the packing; the emergency intervention tool of the water supply regulating valve comprises two bases and two lifting assemblies, wherein the two bases and the two lifting assemblies are arranged above the packing and on two opposite sides of the valve rod; the lifting component is connected to the base; each lifting assembly comprises a fixing piece and a movable positioning piece which is abutted with the coupler, one end of the fixing piece is fixedly connected with the base, and the movable positioning piece is movably connected to the fixing piece and positioned. The emergency intervention tool of the water supply regulating valve can perform emergency intervention under the condition that the water supply regulating valve is slowly closed, the opening degree of the main water supply regulating valve is adjusted, the stability of the water level of the steam generator is ensured, and the risk of reactor jump is effectively reduced.
Description
Technical Field
The utility model relates to the technical field of main water supply regulating valves of steam generators of nuclear power plants, in particular to an emergency intervention tool of a water supply regulating valve.
Background
If the valve is slowly closed due to the failure, diaphragm failure and the like of the main water supply regulating valve of the steam generator of the nuclear power plant, the intervention time left for a master control operator and a site operator is very limited, and if the intervention is not timely performed, the main water supply regulating valve is closed, so that the reactor is shut down. If the main water supply regulating valve is fixed at a certain opening degree at the first time, normal water supply of the steam generator is ensured, and reactor jump can be effectively avoided.
The current method for preventing the reactor from jumping is to destroy the neutral point of the main water supply regulating valve, and shake the valve by a hand wheel to maintain or increase the opening of the valve, but the valve is laborious to shake and the number of turns of the valve is more, and the number of turns of the hand wheel is about 212 from destroying the neutral point to shaking to the normal opening, so that if the power plant fails, the reactor is difficult to avoid shutdown.
Disclosure of Invention
The technical problem to be solved by the utility model is to provide an emergency intervention tool for a water supply regulating valve.
The technical scheme adopted for solving the technical problems is as follows: an emergency intervention tool of a water supply regulating valve, wherein the water supply regulating valve comprises a packing, a valve rod penetrating through the middle of the packing and a coupler which is positioned above the packing and connected with the valve rod; the emergency intervention tool of the water supply regulating valve comprises two bases and two lifting assemblies, wherein the two bases and the two lifting assemblies are arranged above the packing and on two opposite sides of the valve rod; one of the lifting assemblies is connected to one of the bases;
each lifting assembly comprises a fixing piece and a movable positioning piece which is in butt joint with the shaft coupling, one end of the fixing piece is fixedly connected with the base, and the movable positioning piece is movably connected to the fixing piece and is positioned.
Preferably, in the emergency intervention tool of the water supply regulating valve, the fixing piece is provided with external threads, the movable positioning piece is provided with internal threads matched with the external threads of the fixing piece, and the movable positioning piece is in threaded connection and positioning with the fixing piece.
Preferably, in the emergency intervention tool of the water supply regulating valve, the base comprises a mounting part, and the fixing piece is fixedly connected with the mounting part.
Preferably, in the emergency intervention tool for a water supply regulating valve, the mounting part is a screw hole, and the fixing piece is inserted into the screw hole to be screwed and fixed.
Preferably, in the emergency intervention tool of the water supply regulating valve according to the present utility model, the overall shape of the base is arc-shaped, and the outer diameter of the base is substantially equal to the diameter of the packing.
Preferably, in the emergency intervention tool of the water supply regulating valve according to the utility model, the inner diameter of the base is the same as or greater than the diameter of the valve rod.
Preferably, in the emergency intervention tool for a water supply regulating valve according to the present utility model, two ends of the base are respectively arc-shaped, and the diameter of the base is the same as or larger than the diameter of a stud provided between the packing and the coupling.
Preferably, in the emergency intervention tool of the water supply regulating valve, the fixing piece is a screw rod, and the movable positioning piece is a screw cap.
Preferably, in the emergency intervention tool of the water supply regulating valve according to the utility model, the bottom plane of the base is parallel to the top plane of the packing.
Preferably, in the emergency intervention tool of the water supply regulating valve according to the utility model, an end plane of the movable positioning member opposite to the coupling is parallel to an end plane of the coupling opposite to the movable positioning member.
By implementing the utility model, the following beneficial effects are achieved:
the emergency intervention tool of the water supply regulating valve can be applied to the valve opening fixation of the main water supply regulating valve of the steam generator of the nuclear power plant when the valve is slowly closed due to the failure of a gas supply loop or the gas loss of a diaphragm and the like. The emergency intervention tool of the water supply regulating valve is quickly placed above the packing and props against the coupler, so that the water supply regulating valve can be fixed at the opening of the intervention moment, reactor jump is avoided, the stability of the water level of the steam generator is ensured, field equipment is not required to be modified, the taking is convenient, the operation is simple, and the water supply regulating valve has high stability.
Drawings
The utility model will be further described with reference to the accompanying drawings and examples, in which:
FIG. 1 is a schematic diagram of an emergency intervention tool for a feedwater regulation valve according to an embodiment of the present utility model.
Detailed Description
For a clearer understanding of technical features, objects and effects of the present utility model, a detailed description of embodiments of the present utility model will be made with reference to the accompanying drawings.
It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other.
In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in 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 the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first", "a second", etc. may explicitly or implicitly include one or more such feature. In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.
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 either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or chemically connected; 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 can be understood by those of ordinary skill in the art in a specific case.
Referring to fig. 1, an embodiment of the present utility model discloses a feedwater regulation valve emergency intervention tool, which can perform emergency intervention in case of slow valve closing of a main feedwater regulation valve of a steam generator of a nuclear power plant, so as to prevent reactor jump. It will be appreciated that the emergency intervention tool for a water supply regulating valve of the present utility model can be applied not only to valve intervention in this scenario, but also to scenarios where the intervention is performed on a valve in any field in which a similar valve is slowly closed. The device can also be applied to the situation that other devices slowly descend, and the device can be temporarily intervened to prevent the descent. It should be clear that the feed water regulating valve is only one of the objects of the utility model.
The water supply regulating valve comprises a packing, a valve rod penetrating through the middle of the packing and a coupler which is positioned above the packing and connected with the valve rod. The emergency intervention tool of the feed water regulating valve comprises in some embodiments two seats 1 placed above the packing on opposite sides of the valve stem and two lifting assemblies 2, one lifting assembly 2 being connected to one seat 1. Each lifting assembly 2 comprises in some embodiments a fixing member 21 and a movable positioning member 22 abutting against the coupling, wherein one end of the fixing member 21 is fixedly connected with the base 1, and the movable positioning member 22 is movably connected to the fixing member 21 and is positioned.
When the valve is slowly closed due to the failure of an air supply loop or the failure of a diaphragm, and the like, the two bases 1 and the lifting assemblies 2 connected with the bases are oppositely arranged on two sides of the valve rod of the water supply regulating valve, are arranged above the packing, the bottoms of the bases 1 are tightly attached to the packing, are stably arranged, the upper ends of the movable positioning pieces 22 are abutted to the lower parts of the couplers, and the lower parts of the movable positioning pieces are positioned at a certain position of the fixing pieces 21, so that the couplers are limited to continuously descend, and the opening positions of the valves at the moment are maintained. The emergency intervention tool of the water supply regulating valve can realize effective adjustment of the opening degree of the main water supply regulating valve, ensure the stability of the water level of the steam generator and effectively reduce the risk of reactor jump. And the field device does not need to be modified, the taking is convenient, and the device has high adaptability.
To position the mobile positioning member 22 at any axial position of the fixing member 21, the fixing member 21 is provided with external threads in some embodiments, the mobile positioning member 22 is provided with internal threads matching the external threads of the fixing member 21, and the mobile positioning member 22 is screwed into position with the fixing member 21. Wherein the threads are not shown in the figures. Preferably, the fixing member 21 is a screw, and the moving positioning member 22 is a nut. The height is adjusted by rotating the screw cap, and the adjusting range is 0% -42% of the opening of the water supply adjusting valve.
To mount the lifting assembly 2, the base 1 in some embodiments includes a mounting portion 11, and a securing member 21 is fixedly coupled to the mounting portion 11. Preferably, for easy installation, the mounting portion 11 is a screw hole, and the fixing member 21 is inserted into the screw hole to be screwed.
In order to prevent the related parts of the water supply regulating valve from being damaged, the whole appearance of the base 1 is arc-shaped, the outer diameter of the base is basically equal to the diameter of the packing, and the appearance is similar to the packing so as to balance the stress to the maximum extent. Further, in order to avoid the valve rod located in the middle of the packing, the inner diameter of the base 1 is the same as or larger than the diameter of the valve rod. In order to avoid the studs on two sides of the valve rod, two ends of the base 1 are respectively arc-shaped, and the diameter of the base is the same as or larger than that of the stud arranged between the packing and the coupler. In order to balance the stress to the maximum extent, the bottom plane of the base 1 is parallel to the top plane of the packing, so that the base 1 is tightly attached to the packing.
In order to prevent the damage of the coupling and balance the stress, the top of the movable positioning piece 22 is attached to the bottom of the coupling, and the plane of the end of the movable positioning piece 22 opposite to the coupling is parallel to the plane of the end of the movable positioning piece 22 opposite to the coupling.
By implementing the utility model, the following beneficial effects are achieved:
the emergency intervention tool of the water supply regulating valve can be applied to the valve opening fixation of the main water supply regulating valve of the steam generator of the nuclear power plant when the valve is slowly closed due to the failure of a gas supply loop or the gas loss of a diaphragm and the like. The emergency intervention tool of the water supply regulating valve is quickly placed above the packing and props against the coupler, so that the water supply regulating valve can be fixed at the opening of the intervention moment, reactor jump is avoided, the stability of the water level of the steam generator is ensured, field equipment is not required to be modified, the taking is convenient, the operation is simple, and the water supply regulating valve has high stability.
It is to be understood that the above examples only represent preferred embodiments of the present utility model, which are described in more detail and are not to be construed as limiting the scope of the utility model; it should be noted that, for a person skilled in the art, the above embodiments or technical features may be freely combined, and several variations and modifications may be made, without departing from the spirit of the utility model, which fall within the scope of the utility model, i.e. the embodiments described in "some embodiments" may be freely combined with any of the above and below embodiments; therefore, all changes and modifications that come within the meaning and range of equivalency of the claims are to be embraced within their scope.
Claims (10)
1. An emergency intervention tool of a water supply regulating valve, wherein the water supply regulating valve comprises a packing, a valve rod penetrating through the middle of the packing and a coupler which is positioned above the packing and connected with the valve rod; the emergency intervention tool for the water supply regulating valve is characterized by comprising two bases (1) and two lifting assemblies (2) which are arranged above the packing and on two opposite sides of the valve rod; one lifting assembly (2) is connected to one base (1);
each lifting assembly (2) comprises a fixing piece (21) and a movable positioning piece (22) which is abutted to the coupler, one end of the fixing piece (21) is fixedly connected with the base (1), and the movable positioning piece (22) is movably connected to the fixing piece (21) and is positioned.
2. The emergency intervention tool of a feed water regulating valve according to claim 1, wherein the fixing member (21) is provided with external threads, the movable positioning member (22) is provided with internal threads matching the external threads of the fixing member (21), and the movable positioning member (22) is positioned in a threaded connection with the fixing member (21).
3. The emergency intervention tool of a feed water regulating valve according to claim 1, wherein the base (1) comprises a mounting portion (11), and the fixing member (21) is fixedly connected with the mounting portion (11).
4. A water supply regulating valve emergency intervention tool as in claim 3, wherein the mounting portion (11) is a screw hole, and the fixing member (21) is inserted into the screw hole to be screwed and fixed.
5. The emergency intervention tool of a feed water regulating valve according to claim 1, characterized in that the overall shape of the base (1) is circular arc-shaped, with an external diameter substantially equal to the diameter of the packing.
6. A feed water regulating valve emergency intervention tool according to claim 1, wherein the inner diameter of the base (1) is the same as or larger than the diameter of the valve stem.
7. The emergency intervention tool of a feed water regulating valve according to claim 1, wherein the two ends of the base (1) are respectively arc-shaped, and the diameter of the base is the same as or larger than the diameter of a stud arranged between the packing and the coupling.
8. Emergency intervention tool of a feed water regulating valve according to any of the claims 1-7, wherein the fixing member (21) is a screw and the moving positioning member (22) is a nut.
9. A feedwater regulation valve emergency intervention tool according to any of the claims 1-7, wherein the bottom plane of the base (1) is parallel to the top plane of the packing.
10. A feed water regulating valve emergency intervention tool according to any of the claims 1-7, wherein the end plane of the moving positioner (22) opposite the coupling is parallel to the end plane of the coupling opposite the moving positioner (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321459606.2U CN220037611U (en) | 2023-06-08 | 2023-06-08 | Emergency intervention tool for water supply regulating valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321459606.2U CN220037611U (en) | 2023-06-08 | 2023-06-08 | Emergency intervention tool for water supply regulating valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220037611U true CN220037611U (en) | 2023-11-17 |
Family
ID=88722594
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321459606.2U Active CN220037611U (en) | 2023-06-08 | 2023-06-08 | Emergency intervention tool for water supply regulating valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220037611U (en) |
-
2023
- 2023-06-08 CN CN202321459606.2U patent/CN220037611U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US7896302B2 (en) | Jet pump sensing line T-bolt clamp assembly | |
| US11112022B2 (en) | Module for a kit for distributing and regulating a pressurized gas, associated distribution and regulation kit and system | |
| CN220037611U (en) | Emergency intervention tool for water supply regulating valve | |
| US20150204312A1 (en) | Connector for Joining Two Tubular Members | |
| GB2260850A (en) | Top-nozzle mounted replacement guide pin assemblies | |
| US6435839B1 (en) | Jet pump sensing line clamp assembly and methods | |
| US20230235727A1 (en) | Wind turbine alignment tool | |
| US20180347142A1 (en) | Temporary support structure | |
| CN208203721U (en) | A kind of quick-release and self-locking locking structure | |
| CN101725739B (en) | Electromagnetic control valve device for flow measurement control | |
| US20050084057A1 (en) | Head assembly | |
| JPH0559301B2 (en) | ||
| CN208885350U (en) | Steam turbine regulating valve | |
| KR101551852B1 (en) | Anti-Seismic Appratus for Control Element Drive Mechanism | |
| CN109356793A (en) | Mounting rack, energy storage unit, variable pitch system, wind generating set and method | |
| CN104724617B (en) | Arm latch structure and telescopic arm | |
| CN204783135U (en) | Steam valve is transferred to high pressure with prevent changeing device | |
| US3806167A (en) | Control line disconnect assembly | |
| CN209591713U (en) | A kind of protection equipment for transformer | |
| CN204164657U (en) | A kind of LNG integral type air feed equipment | |
| CN209340753U (en) | A kind of Novel bunk press-fitting electric cabinet frame body | |
| CN109458482A (en) | A kind of fast changeable pneumatic actuator | |
| CN220688142U (en) | Differential pressure combination valve | |
| CN220957035U (en) | High-pressure speed-regulating valve rod anti-drop device of steam turbine | |
| CN104315336B (en) | A kind of LNG integral type air feed equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |