CN109752048A - The sensor combinations body measured for spent nuclear fuel in nuclear power plant water level in water pool, temperature - Google Patents
The sensor combinations body measured for spent nuclear fuel in nuclear power plant water level in water pool, temperature Download PDFInfo
- Publication number
- CN109752048A CN109752048A CN201910053429.XA CN201910053429A CN109752048A CN 109752048 A CN109752048 A CN 109752048A CN 201910053429 A CN201910053429 A CN 201910053429A CN 109752048 A CN109752048 A CN 109752048A
- Authority
- CN
- China
- Prior art keywords
- sensor
- water level
- flange
- vertical tube
- support plate
- 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.)
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 55
- 239000002915 spent fuel radioactive waste Substances 0.000 title claims abstract description 29
- 239000000463 material Substances 0.000 claims description 15
- 229910001220 stainless steel Inorganic materials 0.000 claims description 12
- 239000010935 stainless steel Substances 0.000 claims description 12
- 239000011810 insulating material Substances 0.000 claims description 7
- 239000011257 shell material Substances 0.000 claims description 7
- 238000005485 electric heating Methods 0.000 claims description 6
- 239000007788 liquid Substances 0.000 claims description 5
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 4
- 238000012360 testing method Methods 0.000 claims description 4
- 238000009434 installation Methods 0.000 description 6
- 238000012544 monitoring process Methods 0.000 description 6
- 238000005259 measurement Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 239000012774 insulation material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 241000233855 Orchidaceae Species 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000011553 magnetic fluid Substances 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
-
- 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
Landscapes
- Monitoring And Testing Of Nuclear Reactors (AREA)
Abstract
The invention discloses a kind of sensor combinations bodies measured for spent nuclear fuel in nuclear power plant water level in water pool, temperature, including truss, sensor, mounting cylinder, the truss include junction box assembly, flange, vertical tube, support plate；Link case assembly on flange fixes more vertical tubes, vertical tube upper and lower opening under flange, and multiple support plates entangle and fix every vertical tube；More Zhi Shuiwei, temperature sensor upper end be fixed on flange, and be electrically connected with junction box assembly, the tube body of sensor is entangled by support plate or sensor is placed in vertical tube；Multiple elastic parts are fixed on the side wall of each support plate, the sphere of elastic parts can transversal stretching；Mounting cylinder includes flange and guide cylinder, and guide cylinder is fixed under flange, guide cylinder upper and lower opening；Vertical tube, support plate, the sensor of truss can be inserted into guide cylinder, the sphere of elastic parts and guide cylinder inner wall Elastic Contact in support plate.
Description
Technical field
The present invention relates to spent nuclear fuel in nuclear power plant water level in water pool, temperature measuring device more particularly to spent nuclear fuel in nuclear power plant ponds
Water level, temperature sensor assembly.
Background technique
Storage of the spent nuclear fuel in nuclear power plant pond as spentnuclear fuel must be full of water, and mention as long as there is spentnuclear fuel in pond
It is protected for necessary safe biologic；Meanwhile water is cooled down, spent fuel element after-heat is exported in time.Japanese good fortune
Island violent earthquake causes in extensive nuclear leakage event, monitors severe ring of the measuring instrumentss in major accident of Spent Fuel Pool state
Function is lost under the conditions of border.Due to losing the monitoring of pond parameter, prevents the harsh conditions in pond from being found in time, make thing
Therefore develop to worse direction.
After Fukushima accident, worldwide He Guan mechanism requires enhancing Spent Fuel Pool condition monitoring capabilities,
Measuring device is asked to be resistant to design basis earthquake accident, especially because the capacity of Spent Fuel Pool is very big, water level sensor
Length it is longer than traditional sensors, require the fixed form of sensor stronger in the case where big slenderness ratio, require simultaneously
On-line construction installation and adjustment can be carried out, taking-up sensor can be facilitated to be repaired or replaced after equipment investment operation.In addition, poor
The liquidometers such as pressure type liquidometer, float level meter, magnetic fluid level gauge and transparent glass tube (plate) are non-seismic, there are reliability,
The defects of service life, is not suitable for the measurement of spent nuclear fuel in nuclear power plant water level in water pool.
Summary of the invention
It is provided a kind of for nuclear power plant the technical problem to be solved by the present invention is to overcome the above-mentioned insufficient of the prior art
The sensor combinations body that Spent Fuel Pool water level, temperature measure, energy is stable and firm, and in Spent Fuel Pool, shock resistance is good, the service life
Long and easy access is replaced.
The present invention solves the above problems used technical solution are as follows: surveys for spent nuclear fuel in nuclear power plant water level in water pool, temperature
The sensor combinations body of amount includes truss, sensor, mounting cylinder, and the truss includes junction box assembly, flange, vertical tube, support
Plate；Link case assembly on flange fixes more vertical tubes, vertical tube upper and lower opening under flange, and multiple support plates are entangled and fixed
Every vertical tube；More Zhi Shuiwei, temperature sensor upper end be fixed on flange, and be electrically connected with junction box assembly, the pipe of sensor
Body is entangled by support plate or sensor is placed in vertical tube；Fix multiple elastic parts on the side wall of each support plate, elastic group
The sphere of part can transversal stretching；Mounting cylinder includes flange and guide cylinder, and guide cylinder is fixed under flange, guide cylinder upper and lower opening；
Vertical tube, support plate, the sensor of truss can be inserted into guide cylinder, the sphere of elastic parts and guide cylinder inner wall elasticity in support plate
Contact.
The sensor includes two armouring heated type difference thermal resistance water level sensors, four armouring heated type difference heat
Galvanic couple water level sensor, two testing temperatures K-type armoured thermocouple sensor.
Further improved truss further includes guide head, and guide head is cone, is fixed on the lower end of vertical tube, in guide head
The hole that can flow liquid into vertical tube is arranged in portion.
The guide cylinder interior lower end mouth is taper, and taper and guide head match.
The flange of preferred truss, vertical tube, support plate, elastic parts material be 316L stainless steel.
Preferred armouring heated type difference thermal resistance water level sensor shell material is 316L stainless steel, thermal resistance is pure nickel
Silk, electric heating resistance wire material be Ni80Cr20, insulating materials MgO；Armouring heated type differential thermocouple water level sensor
Shell material is 316L stainless steel, thermocouple be K-type (NiCr-NiA), electric heating resistance wire material is Ni80Cr20, insulation material
Material is MgO；The shell material of K-type armoured thermocouple sensor is 316L stainless steel, insulating materials MgO.
Rigid connector on the flange of the mounting cylinder, connector and Spent Fuel Pool rivet.
Compared with the prior art, the advantages of the present invention are as follows: 1, the sensor combinations body by truss be multiple sensors mention
For support, support plate can entangle vertical tube, sensor, and multiple support plates uniformly entangle the very big sensor of slenderness ratio,
Keep its structure highly stable, sensor degradation caused by avoiding because of shaking, shock resistance is strong.2, the elastic parts of support plate installation can
With the close Elastic Contact of guide cylinder inner wall, guarantee the positioning of truss, and flexibly positioned ensure that its anti-seismic performance.3, pass through purlin
The dismountable fixed form of frame, mounting cylinder, is conveniently replaceable sensor.4, the material, sensor of truss use in the assembly
Type and material can guarantee that its anticorrosive property is strong, and can reliablely and stablely realize the continuous measurement of water level in Spent Fuel Pool, close
Monitoring, the continuous monitoring of water temperature/temperature of key water level.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of truss of the present invention.
Fig. 2 is the cross-sectional view of assembly installation rear bearing sheet.
Fig. 3 is the schematic cross-section of elastic parts.
Fig. 4 is the structural schematic diagram of mounting cylinder.
Fig. 5 is the overall structure diagram of assembly.
Specific embodiment
With reference to the accompanying drawing, the present invention is further described for embodiment.
Spent nuclear fuel in nuclear power plant water level in water pool, temperature measuring device sensor combinations body include truss 1, sensor, installation
Cylinder 2.
The structure of truss 1 is as shown in Figure 1, truss 1 includes junction box assembly 11, flange 12, vertical tube 13, support plate 14, leads
To first 18.
Junction box assembly 11 is fixed on flange 12, and junction box assembly 11 is used for lead line, is connect with external circuit.Method
Three vertical round vertical tubes 13 are fixed in the lower end surface of orchid 12, and vertical tube 13 is hollow, lower ending opening, internal also mountable sensor.
The structure of support plate 14 triangle plate as shown in Fig. 2, support plate 14 is positive, wherein three surface side walls of support plate 14
On fix three elastic parts 141, the structure of elastic parts 141 is as shown in Figure 3.The pedestal 1411 of elastic parts 141 is fixed on
Support plate 14 is cased with fixed lid 1412, the upper end aperture of lid 1412 on pedestal 1411.Spring is set in pedestal 1411
1414, sphere 1413 is set between the top of spring 1414 and the aperture of lid 1412, and the spherical crown of sphere 1413 leaks out lid
1412 aperture.In this way, sphere 1413, which is squeezed, to be retracted, will pop up by spring thrust.
Three circular holes 142 for running through plate body are also set up in support plate 14, vertical tube 13 may pass through circular hole 142 and be fixed on support
Plate 14.Multiple mounting holes 143 through plate body are also set up in support plate 14, sensor may pass through and be fixed on mounting hole 143.Branch
Fagging 14 shares three pieces, uniformly entangles and is fixed on outside three vertical tubes 13.
Guide head 18 is cone, the lower end of three vertical tubes 13 is fixed on, in order to make liquid can enter vertical tube 13, vertical tube 13
Upper end there are stomata, setting can flow liquid into the hole of vertical tube 13 inside guide head 18.
Multiple water levels, temperature sensor, including a pair of of armouring heated type difference thermal resistance water level sensor are installed on truss 1
5, four armouring heated type differential thermocouple water level sensors, 7, two testing temperature K-type armoured thermocouple sensors 9.These are passed
The bottom surface of flange 12, and the circuit connection in lead and junction box assembly 11 are fixed in the upper end of sensor.Armouring heated type is poor
The lower end of thermal resistance water level sensor 5 is divided to sequentially pass through the sensor mounting hole 143 in support plate 14, which realizes weary combustion
Expect the continuous measurement of water level in pond.The lower end of four armouring heated type differential thermocouple water level sensors 7 sequentially passes through support
Sensor mounting hole 143 on plate 14, certainly, different according to measurement position point, every Zhi Sizhi armouring heated type differential thermocouple
The position of the lower end of water level sensor 7 is accordingly distributed, and realizes the monitoring of crucial water level in Spent Fuel Pool.Two testing temperature K
Type armoured thermocouple sensor 9 is installed in wherein two vertical tubes 13 (in Fig. 1 shown in dotted line), realizes water in Spent Fuel Pool
The continuous monitoring of temperature/temperature.
Obviously, the quantity, length, installation site of these sensors can change according to the design needs.
The component preferred material of truss is the preferable 316L stainless steel of corrosion resistance.Armouring heated type difference thermal resistance water level passes
The shell material of sensor 5 is 316L stainless steel, thermal resistance be pure nickel wire, electric heating resistance wire material be Ni80Cr20, insulation material
Material is MgO.The shell material of armouring heated type differential thermocouple water level sensor 7 is 316L stainless steel, thermocouple is K-type
(NiCr-NiA), electric heating resistance wire material be Ni80Cr20, insulating materials MgO.The set of K-type armoured thermocouple sensor 9
Tube material is 316L stainless steel, insulating materials MgO.
The structure of mounting cylinder 2 is as shown in figure 4, the installation drum flange 22 that the flange 12 of upper part setting and truss 1 matches, peace
Rigid connector 21 on fitted tube flange 22, connector 21 are used for pool wall rivet or weld etc..It is solid below that drum flange 22 is installed
Safety barrel shape guide cylinder 23,23 upper and lower ends aperture of guide cylinder, so as to liquid entrance.23 interior lower end mouth of guide cylinder is taper guiding
Seat 24, guide holder 24 and guide head 18 match.
When truss 1 and mounting cylinder 2 assemble, the guide head 18 of truss 1 is inserted into guide cylinder 23, when being gradually inserted, support
The sphere 1413 of elastic parts 141 on plate 14 and the close Elastic Contact of inner wall of guide cylinder 23, are positioned at guide cylinder for truss 1
23 center, the other parts of support plate 14 are not contacted with guide cylinder 23, and after being inserted into bottom, two flanges are fixed.After fixation
Structure is as shown in Figure 5.
Claims (7)
1. the sensor combinations body measured for spent nuclear fuel in nuclear power plant water level in water pool, temperature, it is characterised in that: the assembly packet
Truss, sensor, mounting cylinder are included, the truss includes junction box assembly, flange, vertical tube, support plate；Link box on flange
Component fixes more vertical tubes, vertical tube upper and lower opening under flange, and multiple support plates entangle and fix every vertical tube；More Zhi Shuiwei, temperature
Flange is fixed in the upper end of degree sensor, and is electrically connected with junction box assembly, and the tube body of sensor is entangled or passed by support plate
Sensor is placed in vertical tube；Multiple elastic parts are fixed on the side wall of each support plate, the sphere of elastic parts can transversal stretching；Peace
Fitted tube includes flange and guide cylinder, and guide cylinder is fixed under flange, guide cylinder upper and lower opening；The vertical tube of truss, support plate, sensing
Device can be inserted into guide cylinder, the sphere of elastic parts and guide cylinder inner wall Elastic Contact in support plate.
2. the sensor combinations body according to claim 1 measured for spent nuclear fuel in nuclear power plant water level in water pool, temperature, special
Sign is: the sensor includes two armouring heated type difference thermal resistance water level sensors, four armouring heated type difference heat
Galvanic couple water level sensor, two testing temperatures K-type armoured thermocouple sensor.
3. the sensor combinations body according to claim 1 measured for spent nuclear fuel in nuclear power plant water level in water pool, temperature, special
Sign is: the truss further includes guide head, and guide head is cone, is fixed on the lower end of vertical tube, and setting can inside guide head
Flow liquid into the hole of vertical tube.
4. the sensor combinations body according to claim 3 measured for spent nuclear fuel in nuclear power plant water level in water pool, temperature, special
Sign is: the guide cylinder interior lower end mouth is taper, and taper and guide head match.
5. the sensor combinations body according to claim 1 measured for spent nuclear fuel in nuclear power plant water level in water pool, temperature, special
Sign is: the flange of the truss, vertical tube, support plate, elastic parts material be 316L stainless steel.
6. the sensor combinations body according to claim 2 measured for spent nuclear fuel in nuclear power plant water level in water pool, temperature, special
Sign is: the armouring heated type difference thermal resistance water level sensor shell material be 316L stainless steel, thermal resistance be pure nickel wire,
Electric heating resistance wire material is Ni80Cr20, insulating materials MgO；The casing of armouring heated type differential thermocouple water level sensor
Material is 316L stainless steel, thermocouple be K-type (NiCr-NiA), electric heating resistance wire material be Ni80Cr20, insulating materials is
MgO；The shell material of K-type armoured thermocouple sensor is 316L stainless steel, insulating materials MgO.
7. the sensor combinations body according to claim 1 measured for spent nuclear fuel in nuclear power plant water level in water pool, temperature, special
Sign is: rigid connector on the flange of the mounting cylinder, and connector and Spent Fuel Pool rivet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910053429.XA CN109752048B (en) | 2019-01-21 | 2019-01-21 | Sensor assembly for measuring water level and temperature of spent fuel pool of nuclear power plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910053429.XA CN109752048B (en) | 2019-01-21 | 2019-01-21 | Sensor assembly for measuring water level and temperature of spent fuel pool of nuclear power plant |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109752048A true CN109752048A (en) | 2019-05-14 |
| CN109752048B CN109752048B (en) | 2024-06-04 |
Family
ID=66405905
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910053429.XA Active CN109752048B (en) | 2019-01-21 | 2019-01-21 | Sensor assembly for measuring water level and temperature of spent fuel pool of nuclear power plant |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109752048B (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4385197A (en) * | 1980-11-28 | 1983-05-24 | Pneumo Corporation | Multipoint thermocouple assembly |
| US5829594A (en) * | 1997-06-27 | 1998-11-03 | Pro-Tech-Tube, Inc. | Protective enclosure for shipping and storing hazardous materials |
| US20070158133A1 (en) * | 2004-01-30 | 2007-07-12 | Bernard Gebelin | Antiseismic pad, device for supporting a structure and use thereof |
| CN203010162U (en) * | 2013-01-16 | 2013-06-19 | 成都中核鑫星应用技术研究所 | Mounting mechanism for integrated electric contact water level and temperature measuring device for spent fuel pool of nuclear power station |
| CN104575640A (en) * | 2014-12-11 | 2015-04-29 | 中国核电工程有限公司 | Spent fuel water tank liquid level and temperature measuring device |
| JP2015132549A (en) * | 2014-01-14 | 2015-07-23 | 株式会社東芝 | Measuring apparatus mounting arrangement for spent fuel pool |
| CN204564197U (en) * | 2015-04-08 | 2015-08-19 | 深圳市人民医院 | A kind of shockproof outer inspection test tube rack |
| CN206652526U (en) * | 2017-04-25 | 2017-11-21 | 张耀辉 | A kind of clinical laboratory uses formula test tube holder |
| CN207169807U (en) * | 2017-03-31 | 2018-04-03 | 金华市中心医院 | A kind of rack for test tube |
| CN209512918U (en) * | 2019-01-21 | 2019-10-18 | 宁波奥崎自动化仪表设备有限公司 | The sensor combinations body measured for spent nuclear fuel in nuclear power plant water level in water pool, temperature |
-
2019
- 2019-01-21 CN CN201910053429.XA patent/CN109752048B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4385197A (en) * | 1980-11-28 | 1983-05-24 | Pneumo Corporation | Multipoint thermocouple assembly |
| US5829594A (en) * | 1997-06-27 | 1998-11-03 | Pro-Tech-Tube, Inc. | Protective enclosure for shipping and storing hazardous materials |
| US20070158133A1 (en) * | 2004-01-30 | 2007-07-12 | Bernard Gebelin | Antiseismic pad, device for supporting a structure and use thereof |
| CN203010162U (en) * | 2013-01-16 | 2013-06-19 | 成都中核鑫星应用技术研究所 | Mounting mechanism for integrated electric contact water level and temperature measuring device for spent fuel pool of nuclear power station |
| JP2015132549A (en) * | 2014-01-14 | 2015-07-23 | 株式会社東芝 | Measuring apparatus mounting arrangement for spent fuel pool |
| CN104575640A (en) * | 2014-12-11 | 2015-04-29 | 中国核电工程有限公司 | Spent fuel water tank liquid level and temperature measuring device |
| CN204564197U (en) * | 2015-04-08 | 2015-08-19 | 深圳市人民医院 | A kind of shockproof outer inspection test tube rack |
| CN207169807U (en) * | 2017-03-31 | 2018-04-03 | 金华市中心医院 | A kind of rack for test tube |
| CN206652526U (en) * | 2017-04-25 | 2017-11-21 | 张耀辉 | A kind of clinical laboratory uses formula test tube holder |
| CN209512918U (en) * | 2019-01-21 | 2019-10-18 | 宁波奥崎自动化仪表设备有限公司 | The sensor combinations body measured for spent nuclear fuel in nuclear power plant water level in water pool, temperature |
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| Publication number | Publication date |
|---|---|
| CN109752048B (en) | 2024-06-04 |
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Inventor after: Sun Zhichao Inventor after: Sun Jiong Inventor after: Zhu Chenluo Inventor after: Zha Meisheng Inventor after: Zhang Fu Inventor after: Huang Bingchen Inventor after: Huang Weijie Inventor after: Li Liang Inventor after: Fan Jin Inventor before: Sun Zhichao Inventor before: Sun Jiong Inventor before: Zhu Chenluo Inventor before: Zha Meisheng |
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Inventor after: Sun Zhichao Inventor after: Zhang Fu Inventor after: Li Liang Inventor after: Huang Bingchen Inventor after: Huang Weijie Inventor after: Fan Jin Inventor after: Sun Jiong Inventor after: Zhu Chenluo Inventor after: Zha Meisheng Inventor before: Sun Zhichao Inventor before: Sun Jiong Inventor before: Zhu Chenluo Inventor before: Zha Meisheng Inventor before: Zhang Fu Inventor before: Huang Bingchen Inventor before: Huang Weijie Inventor before: Li Liang Inventor before: Fan Jin |
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Address after: Workshop 32, No.68, Yuhai East Road, Hangzhou Bay New District, Ningbo City, Zhejiang Province Applicant after: NINGBO AUQI AUTO-INSTRUMENT EQUIPMENT Co.,Ltd. Address before: Jiangbei District, Zhejiang city of Ningbo Province Dongsheng Street 315020 No. 52 Applicant before: NINGBO AUQI AUTO-INSTRUMENT EQUIPMENT Co.,Ltd. |
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