CN216559503U - Reactor upper portion subassembly leakage monitoring pressure switch calibration equipment - Google Patents
Reactor upper portion subassembly leakage monitoring pressure switch calibration equipment Download PDFInfo
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- CN216559503U CN216559503U CN202122886189.7U CN202122886189U CN216559503U CN 216559503 U CN216559503 U CN 216559503U CN 202122886189 U CN202122886189 U CN 202122886189U CN 216559503 U CN216559503 U CN 216559503U
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- pressure switch
- pressure
- leakage monitoring
- monitoring pressure
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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
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
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Abstract
The utility model belongs to the technical field of nuclear power station reactors, and particularly relates to a reactor upper component leakage monitoring pressure switch calibration device which supports simultaneous calibration of a plurality of leakage monitoring pressure switches, and can shorten a large amount of time and shorten the time consumed by major repair of a critical path compared with a single leakage monitoring pressure switch calibration mode.
Description
Technical Field
The application belongs to the technical field of nuclear power station reactors, and particularly relates to a pressure switch calibration device for monitoring leakage of an upper component of a reactor.
Background
And the reactor upper assembly leakage monitoring pressure switch is used for monitoring whether the upper assembly flange has a return coolant leakage or not. The leakage monitoring pressure switch is a pressure sensing diaphragm type switch, is a nuclear grade product and has no special online checking device.
Therefore, during a nuclear power plant overhaul, a nitrogen source is pressurized for verification. During verification, only one pressure switch can be verified at a time, but 6 pressure switches are used for monitoring leakage of upper components of a reactor of a certain nuclear power station unit, and the verification of the 6 pressure switches needs to occupy about 8 hours of a major repair line, so that the time is long. In addition, the alarm of the pressure switch needs to be confirmed by local personnel and a master controller, and the alarm pressure is read through a local pressure gauge, so that the real alarm pressure value is recorded and lagged, and the accuracy is not high enough; and this work needs a large amount of manpower support because the personnel in the spot use the nitrogen cylinder to pressurize and repeat and master control and confirm, is unfavorable for overhauling the collective dosage control.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a reactor upper portion subassembly leakage monitoring pressure switch calibration equipment, long, the real warning pressure value record of time consuming exists the not accurate, be unfavorable for overhauling collective dosage control's problem behind lags when utilizing nitrogen source pressurization to carry out the calibration to leakage monitoring pressure switch among the solution prior art.
The technical scheme for realizing the purpose of the application is as follows:
the embodiment of the application provides a reactor upper portion subassembly leakage monitoring pressure switch calibration equipment, calibration equipment includes: the gas booster pump, the controller and the at least one calibration branch circuit;
the checking branches correspond to the leakage monitoring pressure switches one by one;
the output end of the gas booster pump is connected with the check port of each leakage monitoring pressure switch through the at least one check branch and used for outputting check gas to the leakage monitoring pressure switches;
the checking branch is provided with a pressure sensor which is used for detecting the pressure value of the leakage monitoring pressure switch and feeding the pressure value back to the controller;
the controller is connected with the gas booster pump and the pressure sensor and is used for controlling the gas booster pump to output checking gas; and the pressure sensor is also used for obtaining a checking result of the leakage monitoring pressure switch according to the pressure value fed back by the pressure sensor.
Optionally, the verifying branch specifically includes: adjusting a pressure reducing valve, a pressure relief valve and a hose;
the output end of the gas booster pump is connected with the check port of the leakage monitoring pressure switch through the hose;
the hose is connected with the pressure regulating valve and the pressure relief valve and is used for regulating the pressure of the check gas output to the leakage monitoring pressure switch by the gas booster pump;
the controller is further connected with the pressure regulating valve and the pressure relief valve and used for controlling the pressure of the calibration gas output to the leakage monitoring pressure switch by the gas booster pump.
Optionally, the verifying branch further includes: a manual stop valve;
the manual stop valve is connected on the hose and used for cutting off the checking gas output by the gas booster pump to the leakage monitoring pressure switch.
Optionally, the verifying branch further includes: a quick coupling;
the hose is connected with the check port of the leakage monitoring pressure switch through the quick connector.
Alternatively to this, the first and second parts may,
the pressure sensor is a pressure transmitter.
Alternatively to this, the first and second parts may,
the number of the checking branches is 6.
In the alternative,
the controller is also used for monitoring the action condition of the leakage monitoring pressure switch; and when the leakage monitoring pressure switch acts, recording a pressure value fed back by the pressure sensor.
Optionally, the verification apparatus further includes: an aviation plug adapter;
the controller is connected with a main controller of the nuclear power station through the aviation plug adapter and used for feeding back the checking result to the main controller.
In the alternative,
the checking device is arranged on the portable mobile station.
The beneficial technical effect of this application lies in:
(1) the utility model provides a pair of reactor upper portion subassembly leakage monitoring pressure switch calibration equipment steps up 6 check-up branches simultaneously, compares relatively and single branch road check-up mode and can shorten a large amount of times, and it is consuming time to shorten the key path of overhaul.
(2) The utility model provides a reactor upper portion subassembly leakage monitoring pressure switch calibration equipment, thereby it can close any branch road to reach the calibration to other branch roads to be equipped with manual stop valve, flexibility when having improved the calibration like this.
(3) The utility model provides a pair of reactor upper portion subassembly leakage monitoring pressure switch calibration equipment controls the speed of stepping up through controller control electric regulating valve aperture, protects reactor upper portion subassembly, accurate data.
(4) The utility model provides a pair of reactor upper portion subassembly leakage monitoring pressure switch calibration equipment, installation controller sets up pressure protection to pressure real-time supervision, prevents to suppress process pressure and surpasss the upper limit, protects reactor upper portion subassembly.
(5) The utility model provides a pair of reactor upper portion subassembly leakage monitoring pressure switch calibration equipment, calibration equipment rationally distributed install on silence hand buggy or other instrument of being convenient for remove, increase the flexibility of equipment, personnel's during the convenient overhaul use reduces staff's input, is convenient for control overhaul personnel dosage.
(6) The utility model provides a pair of reactor upper portion subassembly leakage monitoring pressure switch calibration equipment utilizes the aviation plug adapter, realizes feedback signal automatic acquisition, has replaced the mode that originally uses manual work and master control to confirm.
Drawings
Fig. 1 is a schematic structural diagram of a reactor upper assembly leakage monitoring pressure switch calibration device according to an embodiment of the present disclosure;
fig. 2 is a schematic structural diagram of another reactor upper assembly leakage monitoring pressure switch calibration device according to an embodiment of the present application.
In the figure:
1-gas booster pump;
2-a controller;
3-checking the branch; 31-a pressure sensor; 32-regulating the pressure reducing valve; 33-a pressure relief valve; 34-a hose;
35-manual stop valve; 36-a quick coupling;
4-an aviation plug adapter; 41-connecting cables.
Detailed Description
In order to make the technical solutions in the embodiments of the present application more comprehensible to those skilled in the art, the following description will be made in detail and completely with reference to the accompanying drawings in the embodiments of the present application. It should be apparent that the embodiments described below are only some of the embodiments of the present application, and not all of them. All other embodiments that can be derived by a person skilled in the art from the embodiments described herein without inventive step are within the scope of the present application.
In order to solve the technical problem, the embodiment of the application provides a reactor upper assembly leakage monitoring pressure switch calibration device, gas source pressure of a gas booster pump is utilized to ensure that 6 leakage monitoring pressure switch branches are boosted simultaneously, boosting rate is automatically controlled, pressure switch alarm signals are automatically collected through control software, gas source pressure is controlled, pressure switch alarm pressure values are automatically recorded, and a special calibration device supports an online printing calibration curve function.
Based on the above, in order to clearly and specifically explain the above advantages of the present application, the following description of the embodiments of the present application will be made with reference to the accompanying drawings.
Referring to fig. 1 and 2, the schematic diagrams are schematic structural diagrams of a reactor upper assembly leakage monitoring pressure switch calibration device provided by an embodiment of the present application.
The utility model provides a reactor upper portion subassembly leak detection pressure switch calibration equipment who provides includes: a gas booster pump 1, a controller 2 and at least one calibration branch 3;
the checking branches 3 correspond to the leakage monitoring pressure switches one by one;
the output end of the gas booster pump 1 is connected with the check ports of the leakage monitoring pressure switches through at least one check branch 3 and used for outputting check gas to the leakage monitoring pressure switches;
the calibration branch 3 is provided with a pressure sensor 31 for detecting the pressure value of the leakage monitoring pressure switch and feeding the pressure value back to the controller 2;
the controller 2 is connected with the gas booster pump 1 and the pressure sensor 31 and is used for controlling the gas booster pump 1 to output the checking gas; and is also used for obtaining the checking result of the leakage monitoring pressure switch according to the pressure value fed back by the pressure sensor 31.
In this embodiment, utilize gas booster pump 1 to boost simultaneously a plurality of check-up branch road 3, check up a plurality of leakage monitoring pressure switches that correspond to these a plurality of check-up branch roads 3 simultaneously. This approach may reduce a significant amount of time relative to the single-leg verification mode.
As an example, the number of the calibration branches 3 may be specifically 6, and the calibration branches correspond to 6 leakage monitoring pressure switches of an upper component of a reactor of a certain nuclear power plant unit one by one.
In one example, pressure sensor 31 is embodied as a pressure transmitter. The range of the pressure transmitter can be 0-2.5MPa, the precision is not lower than 0.25 level, and the signal of the pressure transmitter is transmitted to the controller 2 and used for the controller 2 to read the pressure value of the leakage monitoring pressure during alarming according to the pressure value fed back by the pressure sensor 31.
In another example, the controller 2 also supports an online print verification curve function.
In some possible implementation manners of the embodiment of the present application, the verifying branch 3 specifically includes: regulating pressure reducing valve 32, pressure relief valve 33 and hose 34;
the output end of the gas booster pump 1 is connected with a check port of a leakage monitoring pressure switch through a hose 34;
the hose 34 is connected with a pressure regulating valve 32 and a pressure relief valve 33, and is used for regulating the pressure of the check gas output by the gas booster pump 1 to the leakage monitoring pressure switch;
the controller 2 is also connected with a regulated pressure valve 32 and a pressure relief valve 33 for controlling the pressure of the calibration gas output by the gas booster pump 1 to the leakage monitoring pressure switch.
In specific implementation, the controller 2 controls the regulating pressure reducing valve 32 to act, and when the leakage monitoring pressure switch sends an alarm signal, the controller 2 automatically closes the regulating pressure reducing valve 32, so that the pressure of the check gas output from the gas booster pump 1 to the leakage monitoring pressure switch maintains the current air pressure. When the pressure reaches the alarm value, the pressure relief valve 33 is opened slowly to relieve the pressure of the air in the hose 34, and the pressure value when the alarm of the pressure switch disappears is recorded. The relief valve 33 also allows the gas in the hose 34 to be vented after the completion of the work.
In some possible implementation manners of the embodiment of the present application, the verifying branch 3 further includes: a manual cut-off valve 35;
a manual shutoff valve 35 is connected to the hose 34 for shutting off the verification gas output from the gas booster pump 1 to the leak monitor pressure switch.
It will be appreciated that when a single test is required for a leak monitoring pressure switch, the manual shut-off valves 35 on other calibration branches may be selectively closed, and the manual shut-off valves 35 may ensure more flexible options for testing.
In some possible implementation manners of the embodiment of the present application, the verifying branch 3 further includes: a quick coupling 36;
It will be appreciated that the hose 34 is connected to the calibration port of the leak monitoring pressure switch by a quick connector 36 for easy removal.
In some possible implementation manners of the embodiment of the present application, the controller 2 is further configured to monitor an action condition of the leak monitoring pressure switch; when the leakage monitoring pressure switch acts, the pressure value fed back by the pressure sensor 31 is recorded.
As one example, the controller 2 may determine whether the leak monitor pressure switch is actuated by monitoring the 24V voltage value upstream of the leak monitor pressure switch.
In practical application, after a certain leakage monitoring pressure switch acts, the pressure value fed back by the pressure sensor 31 is automatically recorded, and the regulating pressure valve 32 is rapidly controlled to maintain the current pressure value. When the pressure of the corresponding checking branch is increased to 2MPa, the current pressure is automatically maintained, and the pressure regulating valve 32 is forbidden to be opened continuously.
In one example, the controller 2 is provided with buttons to allow a human to manually control the pressure increase and release of each calibration branch.
In some possible implementation manners of the embodiment of the present application, the verifying apparatus further includes: an aviation plug adapter 4;
the controller 2 is connected with a main controller of the nuclear power station through an aviation plug adapter 4 and used for feeding back a check result to the main controller.
In practical application, the controller 2 is connected to an original measurement loop through the aviation plug adapter 4, and the 24V voltage value at the upstream of the leakage monitoring pressure switch is monitored so as to judge whether the leakage monitoring pressure switch acts or not.
In the embodiment of the application, the aviation plug adapter 4 is utilized, so that the automatic acquisition of the feedback signal to the main controller can be realized, and the original mode of manual work and main controller confirmation is replaced.
In some possible implementations of the embodiments of the present application, the verification device is mounted on a portable mobile station.
In practical application, the reactor upper part assembly leakage monitoring pressure switch calibration device provided by the embodiment of the application can be installed on a mute hand-pulling trolley or other tools (namely a portable mobile station) convenient to move, the flexibility of the calibration device is increased, personnel can be used during overhaul conveniently, the investment of workers is reduced, and the dosage of the overhaul personnel can be controlled conveniently.
The present application has been described in detail with reference to the drawings and examples, but the present application is not limited to the above examples, and various changes can be made within the knowledge of those skilled in the art without departing from the spirit of the present application. The prior art can be used for all the matters not described in detail in this application.
Claims (9)
1. A reactor upper assembly leakage monitoring pressure switch calibration device, characterized in that, calibration device includes: the gas booster pump, the controller and the at least one calibration branch circuit;
the checking branches correspond to the leakage monitoring pressure switches one by one;
the output end of the gas booster pump is connected with the check port of each leakage monitoring pressure switch through the at least one check branch and used for outputting check gas to the leakage monitoring pressure switches;
the check branch is provided with a pressure sensor which is used for detecting the pressure value of the leakage monitoring pressure switch and feeding the pressure value back to the controller;
the controller is connected with the gas booster pump and the pressure sensor and is used for controlling the gas booster pump to output checking gas; and the pressure sensor is also used for obtaining a checking result of the leakage monitoring pressure switch according to the pressure value fed back by the pressure sensor.
2. The reactor upper assembly leakage monitoring pressure switch calibration device of claim 1, wherein the calibration branch comprises: adjusting a pressure reducing valve, a pressure relief valve and a hose;
the output end of the gas booster pump is connected with the check port of the leakage monitoring pressure switch through the hose;
the hose is connected with the regulating pressure reducing valve and the pressure relief valve and is used for regulating the pressure of the check gas output to the leakage monitoring pressure switch by the gas booster pump;
the controller is further connected with the pressure regulating and reducing valve and the pressure relief valve and used for controlling the gas booster pump to output the pressure of the check gas of the leakage monitoring pressure switch.
3. The reactor upper assembly leak monitoring pressure switch calibration device of claim 2, further comprising: a manual stop valve;
the manual stop valve is connected on the hose and used for stopping the checking gas output by the gas booster pump to the leakage monitoring pressure switch.
4. The reactor upper assembly leak monitoring pressure switch calibration device of claim 2, further comprising: a quick coupling;
the hose is connected with the check port of the leakage monitoring pressure switch through the quick connector.
5. The reactor upper assembly leak monitoring pressure switch calibration device of claim 1,
the pressure sensor is a pressure transmitter.
6. The reactor upper assembly leak monitoring pressure switch verification device according to any one of claims 1 to 5,
the number of the checking branches is 6.
7. The reactor upper assembly leak monitoring pressure switch calibration device of claim 1,
the controller is also used for monitoring the action condition of the leakage monitoring pressure switch; and when the leakage monitoring pressure switch acts, recording a pressure value fed back by the pressure sensor.
8. The reactor upper assembly leak monitoring pressure switch calibration device of claim 1, further comprising: an aviation plug adapter;
the controller is connected with a main controller of the nuclear power station through the aviation plug adapter and used for feeding back the checking result to the main controller.
9. The reactor upper assembly leak monitoring pressure switch calibration device of claim 1,
the checking device is arranged on the portable mobile station.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122886189.7U CN216559503U (en) | 2021-11-19 | 2021-11-19 | Reactor upper portion subassembly leakage monitoring pressure switch calibration equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122886189.7U CN216559503U (en) | 2021-11-19 | 2021-11-19 | Reactor upper portion subassembly leakage monitoring pressure switch calibration equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216559503U true CN216559503U (en) | 2022-05-17 |
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ID=81575419
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122886189.7U Active CN216559503U (en) | 2021-11-19 | 2021-11-19 | Reactor upper portion subassembly leakage monitoring pressure switch calibration equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216559503U (en) |
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2021
- 2021-11-19 CN CN202122886189.7U patent/CN216559503U/en active Active
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