CN115655575A - Online calibration equipment of nuclear power plant's electric penetration piece manometer - Google Patents
Online calibration equipment of nuclear power plant's electric penetration piece manometer Download PDFInfo
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- CN115655575A CN115655575A CN202211208569.8A CN202211208569A CN115655575A CN 115655575 A CN115655575 A CN 115655575A CN 202211208569 A CN202211208569 A CN 202211208569A CN 115655575 A CN115655575 A CN 115655575A
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- 230000035515 penetration Effects 0.000 title claims abstract description 58
- 238000011144 upstream manufacturing Methods 0.000 claims abstract description 13
- 230000000149 penetrating effect Effects 0.000 claims abstract description 5
- 238000012795 verification Methods 0.000 claims description 11
- 238000012545 processing Methods 0.000 claims description 4
- 238000004891 communication Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 6
- 230000008569 process Effects 0.000 abstract description 6
- 238000012544 monitoring process Methods 0.000 abstract description 3
- 230000001502 supplementing effect Effects 0.000 abstract description 3
- 239000007789 gas Substances 0.000 description 9
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 3
- 230000001939 inductive effect Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000000941 radioactive substance Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
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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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- Measuring Fluid Pressure (AREA)
Abstract
The invention particularly relates to an on-line calibration device for a pressure gauge of an electrical penetration piece of a nuclear power plant, which comprises a shell and a pressure guiding connecting pipe penetrating through the shell; the upstream port of the pressure guiding connecting pipe is provided with a high-pressure air source inlet, and the downstream port of the pressure guiding connecting pipe is communicated with an air inlet pipeline of the electric penetration piece to be detected; the pressure-guiding connecting pipe is sequentially provided with a pressure reducing valve, a manual ball valve, a proportional unloading valve and a high-precision standard pressure gauge, and the pressure reducing valve is close to one end of the high-pressure air source inlet; a power switch is arranged on the shell, the high-precision standard pressure gauge is connected with a power circuit through the power switch, and the power supply supplies power to the high-precision standard pressure gauge by controlling the starting of the power switch; and when the pipeline pressure is higher than the set value of the proportional unloading valve during the air supply operation, the proportional unloading valve is automatically opened to release pressure. The online calibration device for the pressure gauge of the electrical penetration piece of the nuclear power plant ensures the accuracy of pressure monitoring of the penetration piece and the safety of the gas supplementing process.
Description
Technical Field
The invention relates to the technical field of instrument control equipment, in particular to an on-line calibration device for a pressure gauge of an electrical penetration piece of a nuclear power plant.
Background
The electric penetration piece is arranged on a nuclear plant full shell, a reactor shielding room and a reactor cabin, is used for special electric equipment for penetrating various cables through the shell, maintains the integrity and the electric continuity of pressure boundaries such as a reactor containment vessel and the like under normal and various accident conditions, prevents radioactive substances from leaking, and is vital to the safe operation of the reactor.
The penetrating piece is a pressure-bearing sealing structure, and nitrogen is injected into the penetrating piece. The penetration piece externally mounted has pointer type manometer to monitor penetration piece internal pressure, and the penetration piece pointer type manometer is connected in a three way connection upper end, and cutting ferrule formula pipe fitting and penetration piece internal connection are passed through to three way connection one end, and the other end is connected with cutting ferrule formula pipe fitting, as the tonifying qi mouth. PM requires that the pressure gauge be checked periodically. Because the pressure gauge is directly connected with the inside of the penetration piece by adopting a gas pipeline without a valve, if the pressure gauge adopts an off-line checking mode, the gas inside the penetration piece needs to be discharged, and the off-line checking of the pressure gauge is difficult to implement due to the limitation of the overhaul time of a unit and the working condition of a reactor. Meanwhile, maintenance personnel check the readings of the pressure gauge regularly on site, and when the medium-voltage and low-voltage electric penetration assembly is at the room temperature of 20 ℃, the pressure gauge indicates that the pressure gauge is lower than 0.23Mpa and 0.20Mpa, air supplement is needed. The maximum pressure of the internal gas during the operation of the penetration should be less than 0.44MPa, depending on the material provided by the penetration manufacturer. However, because the electric penetration assembly body is not provided with a safety valve, the traditional air supply mode is adopted, and if a fault occurs in the air supply process, the situation of overpressure of gas pressure in the penetration assembly is easy to occur.
Disclosure of Invention
Therefore, the on-line pressure gauge calibration device for the electrical penetration piece of the nuclear power plant has the advantages that the on-line pressure gauge calibration device has the overpressure protection function in the pressure gauge on-line calibration and gas supply process, and the accuracy of pressure monitoring of the penetration piece and the safety of the gas supply process are guaranteed.
In order to achieve the above purpose, the invention provides the following technical scheme:
an online calibration device for a pressure gauge of an electrical penetration assembly of a nuclear power plant comprises a shell and a pressure guiding connecting pipe;
the pressure guiding connecting pipe penetrates through the shell, a high-pressure air source inlet is formed in an upstream port of the pressure guiding connecting pipe, and a downstream port of the pressure guiding connecting pipe is communicated with an air inlet pipeline of the electric penetration piece to be detected;
the pressure-guiding connecting pipe is sequentially provided with a pressure reducing valve, a manual ball valve, a proportional unloading valve and a high-precision standard pressure gauge, and the pressure reducing valve is close to one end of the high-pressure air source inlet;
the shell is provided with a power switch, the high-precision standard pressure gauge is connected with a power circuit through the power switch, and the power supply is used for supplying power to the high-precision standard pressure gauge by controlling the starting of the power switch;
and when the pipeline pressure is higher than the set value of the proportional unloading valve during the air supply operation, the proportional unloading valve is automatically opened to release pressure.
The working principle is as follows: the manual ball valve is arranged at the upstream of the proportional unloading valve and controls the opening and closing of the whole pipeline; the pressure reducing valve is arranged at the inlet end of the high-pressure air source to regulate the air inlet pressure so as to prevent high-pressure air at the inlet end from damaging downstream equipment; the manual ball valve controls the opening and closing of the whole device; draw pressure connecting pipe and the electric penetration piece air inlet pipe fitting connection that awaits measuring with this calibration equipment low reaches, high pressurized air source access connection high pressurized air source, the relief pressure valve has selected suitable pressure, and manual ball valve closes, and integral type three-way valve revolves to the electric penetration piece manometer and the high accuracy standard pressure table switch-on state that awaits measuring. At the moment, the channel of the pressure gauge to be measured and the high-precision standard pressure gauge of the electric penetration assembly form an air pressure channel. At the moment, the power supply button is turned on, and the calibration of the pressure gauge to be tested of the electric penetration piece can be completed through the high-precision standard pressure gauge and the pressure reading in the LED display. If the reading of the pressure gauge to be measured of the electrical penetration piece is consistent with the high-precision standard pressure gauge, but the pressure does not meet the specified requirement, the integrated three-way valve is rotated at the moment, the manual ball valve is opened, an air pressure passage is formed between the electrical penetration piece and a high-pressure air source, and air is supplied for the electrical penetration piece.
Further, the high-precision standard pressure gauge has a selectable electric signal output function, and the measuring range is 0.6MPa.
Further, the on-line calibration device for the pressure gauge of the electrical penetration assembly of the nuclear power plant further comprises an LED display;
the LED display is connected with the power circuit through the power switch, and the power supply is used for supplying power to the LED display and the high-precision standard pressure gauge by controlling the starting of the power switch;
the high-precision standard pressure gauge is connected with the LED display through a cable, and signals are output to the LED display through the cable;
and a signal processing chip is arranged in the LED display, and the output signal of the high-precision standard pressure gauge is converted into a corresponding digital display.
Further, the high-precision standard pressure gauge is arranged on the pressure guiding connecting pipe through an integrated three-way valve; integral type three-way valve top link and high accuracy standard pressure table intercommunication, the low reaches link is through drawing pressing the connecting pipe and the electric penetration piece air inlet pipeline intercommunication that awaits measuring, and the upper reaches link is through drawing pressing the connecting pipe and communicating with proportion off-load valve.
Furthermore, the high-precision standard pressure gauge is connected with the integrated three-way valve in a detachable threaded mode, and the high-precision standard pressure gauge is convenient to disassemble, assemble and inspect.
Further, the proportional unloading valve is mounted on the pressure-leading connecting pipe through a three-way joint; the top connecting end of the three-way joint is in threaded communication with the proportional unloading valve, the downstream connecting end of the three-way joint is communicated with the integrated three-way valve through a pressure-inducing connecting pipe, and the upstream connecting end of the three-way joint is connected with the manual ball valve through a pressure-inducing connecting pipe.
Furthermore, draw and press the connecting pipe and insert casing both ends through-hole and with through-hole fixed connection, draw and press the connecting pipe middle part to fix on the casing through taking over the support, take over the support to draw and press the connecting pipe and draw integral type three-way valve, high accuracy standard pressure gauge, proportion off-load valve, three way connection, manual ball valve and relief pressure valve on the connecting pipe and support and fix.
Furthermore, draw and press connecting pipe both ends and be cutting ferrule formula coupling, utilize head cutting ferrule nut and connecting piece tip screw thread rotatory locking, contradict inside cutting ferrule to form sealedly.
Furthermore, the upstream and downstream connecting ends of the integrated three-way valve are external threads and are respectively connected with the pressure guiding connecting pipe in a clamping sleeve manner; the connecting end at the top of the integrated three-way valve is an internal thread and is in threaded connection with the lower end of the high-precision standard pressure gauge;
furthermore, the upstream and downstream connecting ends of the tee joint are both external threads and are respectively connected with the pressure guiding connecting pipe in a sleeve type; the top connecting end of the three-way joint is an internal thread and is in threaded connection with the lower end of the proportional unloading valve.
Furthermore, the upper and lower stream connecting ends of the manual ball valve and the pressure reducing valve are external threads and are respectively connected with the pressure guiding connecting pipe in a clamping sleeve type.
Furthermore, the middle part of the pressure guiding connecting pipe is fixedly connected with the connecting pipe support, and the bottom of the connecting pipe support is connected with the shell through a screw.
Furthermore, a notch for embedding the power switch is formed in the surface of the shell, and the power switch is embedded into the corresponding notch of the shell and then is connected with the shell through a screw; the LED display is embedded into the corresponding notch of the shell and then is connected with the shell through a screw.
The invention has the beneficial technical effects that:
the online calibration device for the pressure gauge of the electrical penetration piece of the nuclear power plant has the functions of online calibration of the pressure gauge and overpressure protection in the gas supplementing process, and ensures the accuracy of pressure monitoring of the penetration piece and the safety of the gas supplementing process.
Drawings
FIG. 1 is a schematic structural diagram of an on-line verification device for a pressure gauge of an electrical penetration assembly of a nuclear power plant according to the invention;
FIG. 2 is a perspective view of an on-line verification device for a pressure gauge of an electrical penetration assembly of a nuclear power plant.
In the figure, 1, an integrated three-way valve; 2. a high-precision standard pressure gauge; 3. a proportional unloading valve; 4. a three-way joint; 5. a manual ball valve; 6. a pressure reducing valve; 7. a housing; 8. a pipe connecting support; 9. a power switch; 10. an LED display; 11. a pressure-leading connecting pipe; 12. and a high-pressure gas source inlet.
Detailed Description
In the description of the present invention, it is to be understood that the terms "left end", "right end", "above", "below", "outside", "inside", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, are not to be construed as limiting the present invention.
The present invention will be described in further detail with reference to the accompanying drawings and examples.
Example 1
Referring to fig. 1-2, the invention provides an on-line calibration device for a pressure gauge of an electrical penetration assembly of a nuclear power plant, which comprises a shell 7 and a pressure guiding connecting pipe 11;
the pressure guiding connecting pipe 11 penetrates through the shell 7, a high-pressure air source inlet 12 is formed in an upstream port of the pressure guiding connecting pipe 11, and a downstream port of the pressure guiding connecting pipe 11 is communicated with an air inlet pipeline of an electric penetration piece to be detected;
the pressure-guiding connecting pipe 11 is sequentially provided with a pressure reducing valve 6, a manual ball valve 5, a proportional unloading valve 3 and a high-precision standard pressure gauge 2, and the pressure reducing valve 6 is close to one end of a high-pressure air source inlet 12;
a power switch 9 is installed on the shell 7, the high-precision standard pressure gauge 2 is connected with a power circuit through the power switch 9, and the power supply is used for supplying power to the high-precision standard pressure gauge 2 by controlling the starting of the power switch 9;
and when the pipeline pressure is higher than the set value of the proportional unloading valve 3 during the air supply operation, the proportional unloading valve 3 is automatically opened to release pressure.
The proportional unloading valve 3 consists of an overflow valve and a one-way valve, when the pressure of the pipeline reaches the opening pressure value of the overflow valve of 0.44MPa, the overflow valve is automatically opened, the pressure is released to the outside, and the pressure of the pipeline is ensured not to be higher than 0.44MPa. When the pressure of the pipeline is lower than 0.44MPa, the overflow valve is automatically closed.
The manual ball valve 5 is arranged at the upstream of the proportional unloading valve 3 and controls the opening and closing of the whole pipeline; the pressure reducing valve 6 is arranged at the inlet end of the high-pressure air source to regulate the air inlet pressure and prevent high-pressure air at the inlet end from damaging downstream equipment; the manual ball valve 5 controls the opening and closing of the whole device. Further, the high-precision standard pressure gauge 2 has a selectable electric signal output function, and the measuring range is 0.6MPa.
Further, the on-line verification device for the pressure gauge of the electrical penetration assembly of the nuclear power plant further comprises an LED display 10;
the LED display 10 is connected with a power circuit through a power switch 9, and the power supply is used for supplying power to the LED display 10 and the high-precision standard pressure gauge 2 by controlling the starting of the power switch 9;
the high-precision standard pressure gauge 2 is connected with the LED display 10 through a cable, and signals are output to the LED display 10 through the cable;
and a signal processing chip is arranged in the LED display 10, and the output signal of the high-precision standard pressure gauge 2 is converted into a corresponding digital display.
Further, the high-precision standard pressure gauge 2 is installed on the pressure guiding connecting pipe 11 through the integrated three-way valve 1; 1 top link of integral type three-way valve with high accuracy standard pressure table 2 intercommunication, the low reaches link is through drawing pressure connecting pipe 11 and the electric penetration piece air inlet pipeline intercommunication that awaits measuring, the upper reaches link is through drawing pressure connecting pipe 11 and 3 intercommunications of proportion off-load valve.
Further, high accuracy standard pressure gauge 2 adopts the threaded connection of dismantling with integral type three-way valve 1, and the dismouting of the high accuracy standard pressure gauge 2 of being convenient for is censored.
Further, the proportional unloading valve 3 is installed on the pressure-leading connecting pipe 11 through a three-way joint 4; the top connecting end of the three-way joint 4 is in threaded communication with the proportional unloading valve 3, the downstream connecting end is communicated with the integrated three-way valve 1 through a pressure guiding connecting pipe 11, and the upstream connecting end is connected with the manual ball valve 5 through the pressure guiding connecting pipe 11.
Further, draw pressure connecting pipe 11 insert 7 both ends through-hole of casing and with through-hole fixed connection, draw pressure connecting pipe 11 middle part through taking over support 8 to fix on casing 7, take over support 8 to draw pressure connecting pipe 11 and draw integral type three-way valve 1, high accuracy standard pressure gauge 2, proportion off-load valve 3, three way connection 4, manual ball valve 5 and relief pressure valve 6 on the pressure connecting pipe 11 and support and fix.
Furthermore, two ends of the pressure guiding connection pipe 11 are ferrule type pipe joints, and are rotationally locked with the end part threads of the connecting piece by utilizing a head ferrule nut to abut against an inner ferrule, so that sealing is formed.
Furthermore, the upper and lower connection ends of the integrated three-way valve 1 are external threads and are respectively connected with the pressure guiding connection pipe 11 in a cutting sleeve type; the connecting end of the top of the integrated three-way valve 1 is an internal thread and is in threaded connection with the lower end of the high-precision standard pressure gauge 2;
furthermore, the upstream and downstream connecting ends of the three-way joint 4 are both external threads and are respectively connected with the pressure guiding connecting pipe 11 in a ferrule type; the top connecting end of the three-way joint 4 is an internal thread and is in threaded connection with the lower end of the proportional unloading valve 3.
Furthermore, the upstream and downstream connecting ends of the manual ball valve 5 and the pressure reducing valve 6 are both external threads and are respectively connected with the pressure guiding connecting pipe 11 in a cutting sleeve type.
Furthermore, the middle part of the pressure guiding connecting pipe 11 is fixedly connected with the connecting pipe support 8, and the bottom of the connecting pipe support 8 is in screw connection with the shell 7.
Furthermore, a notch for embedding the power switch 9 is formed in the surface of the shell 7, and the power switch 9 is embedded in the corresponding notch of the shell 7 and then is in screw connection with the shell 7; the surface of the shell 7 is provided with a notch for the LED display 10 to be embedded in, and the LED display 10 is embedded in the corresponding notch of the shell 7 and then is in screw connection with the shell 7. Furthermore, a signal processing chip is arranged in the LED display 10, and the output signal of the high-precision standard pressure gauge 2 can be converted into a corresponding digital display. The online verification device for the pressure gauge of the electrical penetration piece of the nuclear power plant comprises the following steps:
will draw and press 11 upper reaches ports of connecting pipe and high-pressure nitrogen gas cutting ferrule formula intercommunication, the low reaches port with await measuring electric penetration piece air inlet pipeline cutting ferrule formula intercommunication, suitable pressure has been selected to relief pressure valve 6, manual ball valve 5 closes, integral type three-way valve 1 revolves to electric penetration piece manometer and the 2 switch-on states of high accuracy standard pressure gauge of awaiting measuring. At the moment, the pressure gauge to be measured of the electric penetration assembly and the 2 channels of the high-precision standard pressure gauge form an air pressure passage. At the moment, the power button 9 is turned on, and the pressure reading in the high-precision standard pressure gauge 2 and the LED display 10 can be used for completing the calibration of the pressure gauge to be tested of the electric penetration piece.
If the electric penetration piece manometer reading that awaits measuring is unanimous with high accuracy standard pressure table 2, but pressure does not reach the regulation requirement, rotatory integral type three-way valve 1 this moment opens manual ball valve 5, makes to form the atmospheric pressure passageway between electric penetration piece and high pressurized air source, carries out the tonifying qi for electric penetration piece.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. An on-line calibration device for a pressure gauge of an electrical penetration assembly of a nuclear power plant is characterized by comprising a shell (7) and a pressure guiding connecting pipe (11);
the pressure guiding connecting pipe (11) penetrates through the shell (7), a high-pressure air source inlet (12) is formed in an upstream port of the pressure guiding connecting pipe (11), and a downstream port of the pressure guiding connecting pipe (11) is communicated with an air inlet pipeline of an electric penetrating piece to be detected;
the pressure-guiding connecting pipe (11) is sequentially provided with a pressure reducing valve (6), a manual ball valve (5), a proportional unloading valve (3) and a high-precision standard pressure gauge (2), and the pressure reducing valve (6) is close to one end of a high-pressure air source inlet (12);
a power switch (9) is installed on the shell (7), the high-precision standard pressure gauge (2) is connected with a power circuit through the power switch (9), and the power supply is used for supplying power to the high-precision standard pressure gauge (2) by controlling the starting of the power switch (9);
and when the pipeline pressure in the pressure guide connecting pipe (11) is higher than the set value of the proportional unloading valve (3), the proportional unloading valve (3) is automatically opened to release pressure.
2. The on-line nuclear power plant electrical penetration assembly pressure gauge checking device according to claim 1, further comprising an LED display (10);
the LED display (10) is connected with a power circuit through a power switch (9), and the power supply is used for supplying power to the LED display (10) and the high-precision standard pressure gauge (2) by controlling the starting of the power switch (9);
the high-precision standard pressure gauge (2) is connected with the LED display (10) through a cable and outputs signals to the LED display (10) through the cable;
and a signal processing chip is arranged in the LED display (10) and converts the output signal of the high-precision standard pressure gauge (2) into corresponding digital display.
3. The on-line verification device for the pressure gauge of the electrical penetration assembly of the nuclear power plant as claimed in claim 2, wherein a notch for embedding the power switch (9) is formed in the surface of the shell (7), and the power switch (9) is embedded in the corresponding notch of the shell (7) and then is in screw connection with the shell (7);
the LED display is characterized in that a notch for the LED display (10) to be embedded is formed in the surface of the shell (7), and the LED display (10) is embedded into the corresponding notch of the shell (7) and then is in screw connection with the shell (7).
4. The on-line verification device for the pressure gauge of the electrical penetration assembly of the nuclear power plant according to claim 1, wherein the high-precision standard pressure gauge (2) is installed on the pressure-leading connecting pipe (11) through an integrated three-way valve (1); integral type three-way valve (1) top link and high accuracy standard pressure gauge (2) intercommunication, low reaches link through drawing press connecting pipe (11) with await measuring electric through-piece air inlet pipeline intercommunication, the upper reaches link is through drawing press connecting pipe (11) and proportion unloading valve (3) intercommunication.
5. The on-line verification device for the pressure gauge of the electrical penetration assembly of the nuclear power plant as claimed in claim 4, wherein the high-precision standard pressure gauge (2) is detachably connected with the integrated three-way valve (1) in a threaded manner.
6. The on-line verification device for the pressure gauge of the electrical penetration assembly of the nuclear power plant as claimed in claim 1, wherein the proportional unloading valve (3) is installed on a pressure-leading connecting pipe (11) through a three-way joint (4); the top connecting end of the three-way joint 4 is in threaded communication with the proportional unloading valve (3), the downstream connecting end is communicated with the integrated three-way valve (1) through a pressure guiding connecting pipe (11), and the upstream connecting end is connected with the manual ball valve (5) through the pressure guiding connecting pipe (11).
7. The on-line verification device for the pressure gauge of the electrical penetration assembly of the nuclear power plant as claimed in claim 1, wherein the pressure guiding connection pipe (11) is inserted into the through holes at the two ends of the shell (7) and is fixedly connected with the through holes, and the middle part of the pressure guiding connection pipe (11) is fixed on the shell (7) through the connecting pipe support (8).
8. The on-line pressure gauge checking device for the electrical penetration assembly of the nuclear power plant according to claim 7, characterized in that the middle of the pressure guiding connecting pipe (11) is fixedly connected with the connecting pipe support (8), and the bottom of the connecting pipe support (8) is in screw connection with the shell (7).
9. The on-line verification device for the pressure gauge of the electrical penetration assembly of the nuclear power plant as claimed in claim 1, wherein a ferrule type pipe joint is arranged at each end of the pressure guiding connection pipe (11), and a head ferrule nut is rotationally locked with the end part of the connection piece to abut against an inner ferrule so as to form a seal.
10. The on-line verification device for the pressure gauge of the electrical penetration assembly of the nuclear power plant as claimed in any one of claims 1 to 9, wherein the high-precision standard pressure gauge (2) has an electric signal output function and the measuring range is 0.6MPa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211208569.8A CN115655575A (en) | 2022-09-30 | 2022-09-30 | Online calibration equipment of nuclear power plant's electric penetration piece manometer |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211208569.8A CN115655575A (en) | 2022-09-30 | 2022-09-30 | Online calibration equipment of nuclear power plant's electric penetration piece manometer |
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| CN115655575A true CN115655575A (en) | 2023-01-31 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202211208569.8A Pending CN115655575A (en) | 2022-09-30 | 2022-09-30 | Online calibration equipment of nuclear power plant's electric penetration piece manometer |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202433164U (en) * | 2011-12-15 | 2012-09-12 | 中国核动力研究设计院 | Integrated seal test device for process penetration piece of nuclear power station |
| CN106057258A (en) * | 2016-05-30 | 2016-10-26 | 中广核工程有限公司 | Online metering method of nuclear power plant electrical penetration assembly pressure gauge and pressure monitoring device of method |
| CN213274744U (en) * | 2020-11-30 | 2021-05-25 | 华能山东石岛湾核电有限公司 | Pressure monitoring and adjusting device for electrical penetration assembly of nuclear power plant |
| CN214667424U (en) * | 2020-12-02 | 2021-11-09 | 中广核工程有限公司 | On-line checking pressure gauge device for electric penetration piece |
| CN114061855A (en) * | 2021-10-22 | 2022-02-18 | 中核核电运行管理有限公司 | Nuclear power plant containment penetration piece sealing test operating system and method |
| CN114838867A (en) * | 2022-04-15 | 2022-08-02 | 中国核动力研究设计院 | Online calibration device for nuclear-grade equipment pressure instrument and calibration, correction and monitoring methods |
-
2022
- 2022-09-30 CN CN202211208569.8A patent/CN115655575A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202433164U (en) * | 2011-12-15 | 2012-09-12 | 中国核动力研究设计院 | Integrated seal test device for process penetration piece of nuclear power station |
| CN106057258A (en) * | 2016-05-30 | 2016-10-26 | 中广核工程有限公司 | Online metering method of nuclear power plant electrical penetration assembly pressure gauge and pressure monitoring device of method |
| CN213274744U (en) * | 2020-11-30 | 2021-05-25 | 华能山东石岛湾核电有限公司 | Pressure monitoring and adjusting device for electrical penetration assembly of nuclear power plant |
| CN214667424U (en) * | 2020-12-02 | 2021-11-09 | 中广核工程有限公司 | On-line checking pressure gauge device for electric penetration piece |
| CN114061855A (en) * | 2021-10-22 | 2022-02-18 | 中核核电运行管理有限公司 | Nuclear power plant containment penetration piece sealing test operating system and method |
| CN114838867A (en) * | 2022-04-15 | 2022-08-02 | 中国核动力研究设计院 | Online calibration device for nuclear-grade equipment pressure instrument and calibration, correction and monitoring methods |
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