CN112228779A - Nuclear power chemical pipeline ice plug isolation testing device - Google Patents
Nuclear power chemical pipeline ice plug isolation testing device Download PDFInfo
- Publication number
- CN112228779A CN112228779A CN202011057567.4A CN202011057567A CN112228779A CN 112228779 A CN112228779 A CN 112228779A CN 202011057567 A CN202011057567 A CN 202011057567A CN 112228779 A CN112228779 A CN 112228779A
- Authority
- CN
- China
- Prior art keywords
- ice plug
- pipeline
- nuclear power
- ice
- experiment pipeline
- 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.)
- Pending
Links
- 238000012360 testing method Methods 0.000 title claims abstract description 26
- 238000002955 isolation Methods 0.000 title claims abstract description 24
- 239000000126 substance Substances 0.000 title claims abstract description 17
- 238000002474 experimental method Methods 0.000 claims abstract description 56
- 230000005540 biological transmission Effects 0.000 claims abstract description 8
- 238000001514 detection method Methods 0.000 claims abstract description 7
- 238000002360 preparation method Methods 0.000 claims abstract description 7
- 238000009530 blood pressure measurement Methods 0.000 claims abstract description 6
- 238000009529 body temperature measurement Methods 0.000 claims abstract description 5
- 238000005259 measurement Methods 0.000 claims abstract description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 62
- 239000007788 liquid Substances 0.000 claims description 33
- 229910052757 nitrogen Inorganic materials 0.000 claims description 31
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 12
- 229910000831 Steel Inorganic materials 0.000 claims description 5
- 239000000523 sample Substances 0.000 claims description 5
- 239000010959 steel Substances 0.000 claims description 5
- 230000001105 regulatory effect Effects 0.000 claims description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 2
- 229910052782 aluminium Inorganic materials 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 23
- 230000000694 effects Effects 0.000 abstract description 4
- 230000008569 process Effects 0.000 description 15
- 230000008859 change Effects 0.000 description 12
- 238000005516 engineering process Methods 0.000 description 11
- 239000000463 material Substances 0.000 description 7
- 238000012423 maintenance Methods 0.000 description 5
- 238000011161 development Methods 0.000 description 3
- 238000007710 freezing Methods 0.000 description 3
- 230000008014 freezing Effects 0.000 description 3
- 229910000975 Carbon steel Inorganic materials 0.000 description 2
- XLYOFNOQVPJJNP-ZSJDYOACSA-N Heavy water Chemical compound [2H]O[2H] XLYOFNOQVPJJNP-ZSJDYOACSA-N 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 2
- 239000010962 carbon steel Substances 0.000 description 2
- 239000011888 foil Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000012071 phase Substances 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 235000011089 carbon dioxide Nutrition 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007850 degeneration Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000005429 filling process Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000002285 radioactive effect Effects 0.000 description 1
- 239000000941 radioactive substance Substances 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D5/00—Protection or supervision of installations
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L53/00—Heating of pipes or pipe systems; Cooling of pipes or pipe systems
- F16L53/70—Cooling of pipes or pipe systems
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Monitoring And Testing Of Nuclear Reactors (AREA)
Abstract
The invention relates to the field of machinery, in particular to a nuclear power chemical pipeline ice plug isolation testing device. At present, the ice plug is not widely used as an effective isolation means in China. The device comprises a support frame, an ice plug experiment pipeline, a pipeline deformation detection device, a strain measurement device, a temperature measurement device, a pressure measurement device, a transmission light source, a high-speed camera and an ice plug preparation device; two ends of the ice plug experiment pipeline are fixedly sealed through flanges; the strain measuring device is in contact connection with the upper side of the ice plug experiment pipeline, and the pipeline deformation detecting device and the temperature measuring device are in contact connection with the lower side of the ice plug experiment pipeline; the support frame is used for fixedly supporting the ice plug experiment pipeline. The method has the advantages of simple operation, obvious effect, reliability and the like, and can be popularized in nuclear power plants and chemical enterprises.
Description
Technical Field
The invention relates to the field of machinery, in particular to a nuclear power chemical pipeline ice plug isolation testing device.
Background
Nuclear safety is a life line of a nuclear power industry and is a premise and a foundation for keeping the continuous, stable and healthy development of nuclear power. Nuclear power plant equipment is more, the structure is complicated and technology system is many, and maintenance work load is very big. When the equipment on the pipeline in the system needs to be disassembled or needs to be dismantled for maintenance, the upstream and downstream of the equipment are isolated, or valuable liquid in the whole pipeline is discharged, and the whole pipeline is forced to stop production, and the like. Then, when there is no isolation device near the equipment to be serviced of the system, or the isolation device is temporarily unavailable, considerable difficulty is brought to the maintenance in consideration of the safety (some systems must be filled with water at any time as a reactor hot-trap, some systems have radioactivity and fear of radioactive escape, etc.) and the economy (large system medium amount, long evacuation time, heavy water degradation, etc.) of the system. In this case, with the development of low-temperature engineering techniques, an effective method for simplifying the repair and treatment of pipelines, namely, the ice plug method, has been developed. The ice plug is also called freezing plugging.
The so-called ice plug is to use refrigerant (liquid nitrogen or dry ice, etc.) to locally cool the system pipeline to be isolated, so that the liquid medium in the pipe section is solidified and frozen to form a section of ice plug capable of bearing high pressure, thereby achieving the purpose of isolating equipment. The ability to produce ice plugs is of great significance to the safe operation and economy of the power station. The system can be effectively isolated, and meanwhile, the shutdown or evacuation of the whole system and the risk of escape of radioactive substances are avoided. In China, the ice plug is not widely used as an effective isolation means. The practical and serious problems that how to use an ice plug jacket to manufacture an ice plug, how to represent the temperature of the ice plug jacket and how to influence the performance of the ice plug on a pipeline material, whether the stress generated when the ice plug is used can influence the material, whether the performance of the material is changed or how large the change degree is at a low temperature, whether pipelines with different pipe diameters are all suitable for using an ice plug technology, whether the pipelines can bear freezing stress or not, how to control the cooling rate of the pipelines by the possible plane defect caused by the overlarge transverse temperature gradient of the pipe wall and the like are solved, and the wide application of an ice plug isolation method in China is limited to a great extent. The problems that lead to how to utilize the ice plug clip technology are still in the exploration stage limit the further development and popularization of the ice plug technology.
Therefore, aiming at the problems of the ice plug isolation technology, the developed nuclear power chemical pipeline ice plug isolation technology test method and test device can monitor the pipeline ice plug stress and the pipeline temperature in real time and can also carry out the research on the performance influence of the ice plug isolation on the pipeline material of the power plant. The method is of great importance for improving the maintenance efficiency of the nuclear power station and ensuring the safety, reliability and service life of nuclear power equipment.
The device has the advantages of simple operation, obvious effect, reliable method and the like, and can be popularized in nuclear power plants and chemical enterprises.
Disclosure of Invention
1. Objects of the invention
In order to study the influence of stress generated by temperature change and liquid phase change on a pipeline in the practical application process of the ice plug technology, the temperature gradient of the pipeline and the ice plug forming process in the ice plug process are correspondingly studied, and how to apply the ice plug to the pipeline isolation technology. The invention provides an effective test device and a research method, which can accurately measure and analyze the mechanical property influence of the ice plug isolation technology on a nuclear power pipeline, the icing process of the ice plug, the temperature change of the pipeline in the ice plug process and the like, and further apply the ice plug technology to the nuclear power industry to guide engineering practice. The maintenance efficiency of the nuclear power station is improved, and the safety, reliability and service life of nuclear power equipment are guaranteed.
2. Technical scheme
A nuclear power chemical pipeline ice plug isolation testing device comprises a support frame, an ice plug experiment pipeline, a pipeline deformation detection device, a strain measurement device, a temperature measurement device, a pressure measurement device, a transmission light source, a high-speed camera and an ice plug preparation device; two ends of the ice plug experiment pipeline are fixedly sealed through transparent flanges; the strain measuring device is in contact connection with the upper side of the ice plug experiment pipeline, and the pipeline deformation detecting device and the temperature measuring device are in contact connection with the lower side of the ice plug experiment pipeline; the support frame is used for fixedly supporting the ice plug experiment pipeline.
The supporting frame is of a frame structure, the bottom of the supporting frame is a square plate, the rectangular steel plate is welded in the center of the aluminum plate, and the top of the rectangular steel plate is provided with a V-shaped groove; the number of the supporting frames is two, and the supporting frames are symmetrically distributed.
The two ends of the ice plug experiment pipeline are sealed by transparent flanges; the ice plug experiment pipeline is provided with a water inlet hole, a water outlet hole and a pressure gauge mounting hole.
The strain measurement device comprises low-temperature strain gauges which are uniformly distributed on the ice plug experiment pipeline; the temperature measuring device comprises a low-temperature sensor, and a probe of the low-temperature sensor is contacted with the temperature of the outer surface of the pipeline of the ice plug experiment.
The ice plug preparation device mainly comprises an ice plug jacket device, a liquid nitrogen pipe, a regulating valve, a liquid nitrogen bottle and a liquid nitrogen pump; the ice plug jacket device is fixedly connected with a liquid nitrogen pump through a liquid nitrogen pipe, and an adjusting valve is fixedly arranged on the liquid nitrogen pipe; the liquid nitrogen pump is connected with the liquid nitrogen bottle through a pipeline.
The center of the ice plug experiment pipeline is fixedly provided with an ice plug jacket device, and the ice plug jacket device is connected and clamped with the ice plug experiment pipeline through bolts.
And the right flange of the ice plug experiment pipeline is fixedly connected with the high-speed camera.
And a transmission light source is arranged on the left side of the ice plug experiment pipeline.
The pressure measuring device is a pressure gauge, and the pressure gauge is connected with the ice plug experiment pipeline through threads.
3. Effects of the invention
The support frame is used for supporting the test pipeline, prepares the ice plug through ice plug preparation facilities, adopts transparent flange to seal the pipeline and observes the interior liquid situation of change of pipeline through the high-speed camera, and evenly distributed's low temperature foil gage and temperature sensor can obtain the meeting an emergency and the temperature data of each point in the pipeline test process, can carry out stress analysis and security evaluation analysis to the pipeline through the data that obtain more than.
The effects of the invention are mainly shown in that:
the support frame of patent is fit for the pipeline of various sizes that nuclear power station commonly used. The whole ice plug testing device can obtain the strain change and the temperature change of each measuring point, can monitor the icing process of liquid in a pipeline in real time in the testing process, and is simple in structure and convenient to operate.
Drawings
FIG. 1 is a schematic view of an ice plug testing device
FIG. 2 is a schematic view of the supporting frame
FIG. 3 is a schematic view of a test pipeline
In the figure: 1. the support frame, 2, the plug experiment pipeline, 3, low temperature foil gage, 4, pipeline deformation detection device, 5, pressure measurement device, 6, high-speed camera, 7, plug jacket device, 8, transmission light source, 9, strain measurement device, 10, low temperature measurement device, 11, liquid nitrogen bottle, 12, liquid nitrogen pump, 13, square board, 14, rectangle steel sheet, 22, the inlet opening, 23, the apopore, 24, the manometer mounting hole.
Detailed Description
The invention is further described in connection with the above figures.
As shown in fig. 1, the experimental device for researching the influence of the ice plug technology on the performance of the pipeline material comprises a support frame 1, an ice plug experimental pipeline 2, a low-temperature strain gauge 3, a pipeline deformation detection device 4, a pressure measurement device 5, a high-speed camera 6, an ice plug jacket device 7, a transmission light source 8, a strain data acquisition device 9, a strain data acquisition device 10, a liquid nitrogen bottle 11 and a liquid nitrogen pump 12.
Further, as shown in fig. 2, the support frame includes a square carbon steel plate 13 as the bottom of the support frame, and a V-shaped groove is formed at the top of a rectangular carbon steel plate 14 for placing the test pipeline. All the pipelines are welded. The pipeline is respectively provided with a support frame at the head and the tail. The support frame is suitable for pipelines with common sizes for nuclear power.
Still further, as shown in fig. 3, the experimental pipeline material is a pipeline material commonly used in a nuclear power station, and two ends of the pipeline are sealed by transparent flanges 21. A water inlet hole 22 and a water outlet hole 23 are formed in the pipeline, and a pressure gauge mounting hole 24 is formed.
The strain measuring device 9 uniformly and firmly sticks a plurality of low-temperature strain gauges 3 on the measuring points of the ice plug experimental pipeline 2 at the same interval distance, when the ice plug experimental pipeline 2 is subjected to strain generated by volume expansion of internal water caused by phase change, sensitive grids on the low-temperature strain gauges 3 are correspondingly changed along with the deformation of the ice plug experimental pipeline 2, so that the resistance of the ice plug experimental pipeline is changed, the resistance change is measured by a special instrument, and the strain of the measuring points is finally obtained. And finally, obtaining the stress magnitude on the measuring point through a constitutive equation.
The low-temperature measuring device 10 obtains the temperature of the outer surface of the ice plug experiment pipeline 2 through probe contact, and a plurality of low-temperature sensors 4 are uniformly and firmly stuck to measuring points of the ice plug experiment pipeline 2 at the same interval distance, so that the temperature change of each measuring point on the ice plug experiment pipeline 2 in the experiment process can be recorded in time.
The pipeline deformation detection device 4 is uniformly and symmetrically arranged on two sides of the pipeline through six fixed dial indicators, and the probes of the dial indicators are pressed against the outer wall of the pipeline and are zeroed so as to record the degeneration condition of the pipeline under a temperature field and a stress field in the experimental process.
The device for recording the ice plug process is characterized in that the ice plug process recording device is a high-speed camera 6, a transmission light source 8 and the high-speed camera 6 are placed on two sides of an ice plug experiment pipeline 2, light rays enter the ice plug experiment pipeline 2 through a transparent flange, the high-speed camera 6 records imaging information of the ice plug formation process of the ice plug experiment pipeline 2, and therefore the relationship between physical phenomena and experiment data is observed.
The ice plug preparation device mainly comprises an ice plug jacket device 7, a liquid nitrogen pipe, a regulating valve, a joint, a liquid nitrogen bottle 11 and a liquid nitrogen pump 12. Liquid nitrogen is filled into the ice plug jacket device 7, and the low temperature makes water in the test pipeline frozen to form an ice plug capable of bearing certain pressure. The flow of liquid nitrogen is controlled by the action of the regulating valve, so that the freezing speed of the pipeline is controlled.
The specific operation process is as follows: the method comprises the following steps of placing an ice plug experiment pipeline 2 on a support frame, fixedly sealing two ends of the ice plug experiment pipeline 2 through flanges, connecting a pressure gauge with the ice plug experiment pipeline 2 through threads, uniformly arranging a low-temperature strain gauge 3, a pipeline deformation detection device 4 and a low-temperature measurement device 10 on the ice plug experiment pipeline 2, and tightly connecting the low-temperature strain gauge 3 with the ice plug experiment pipeline 2 by using glue; the pipeline deformation measuring device 4 is used for pressing the probe against the pipe wall; the cryogenic temperature measuring devices 10 are arranged at equal intervals at the test points of the iceplug test tube 2. A projection light source 8 is arranged at one end of the ice plug experiment pipeline 2 to provide a light source, and a camera is fixedly connected with the transparent flange at the other end of the ice plug experiment pipeline 2 to observe the icing process in the ice plug experiment pipeline 2. The ice plug jacket device 7 is arranged in the center of the ice plug experiment pipeline 2, the ice plug experiment pipeline 2 is clamped by bolts, liquid nitrogen is filled into the ice plug jacket device 7 through a liquid nitrogen inlet pipe, and nitrogen after phase change is discharged through an exhaust valve.
During the experiment, the water inlet of the high-speed camera 6 is opened, the water inlet is closed after the high-speed camera is filled with water, and liquid nitrogen is introduced into the ice plug jacket device 7. The low-temperature strain gauge 3 is connected with a strain acquisition device, the temperature sensor is connected with the temperature acquisition device, and strain temperature data and an ice plug forming image are acquired in real time in the jacket nitrogen filling process.
Claims (9)
1. The utility model provides a nuclear power chemical pipeline ice plug isolation test device which characterized in that: the device comprises a support frame (1), an ice plug experiment pipeline (2), a low-temperature strain gauge (3), a pipeline deformation detection device (4), a pressure measurement device (5), a high-speed camera (6), an ice plug jacket device (7), a transmission light source (8), a strain measurement device (9), a low-temperature measurement device (10) and an ice plug preparation device; two ends of the ice plug experiment pipeline (2) are fixedly sealed through transparent flanges; the strain measuring device (9) is in contact connection with the upper side of the ice plug experiment pipeline (2), and the temperature measuring device (10) is in contact connection with the lower side of the ice plug experiment pipeline (2); the support frame (1) is used for fixedly supporting the ice plug experiment pipeline (2).
2. The nuclear power chemical pipeline ice plug isolation testing device of claim 1, characterized in that: the supporting frame (1) is of a frame structure, the bottom of the supporting frame is a square plate (13), a rectangular steel plate (14) is welded in the center of an aluminum plate, and the top of the rectangular steel plate (14) is provided with a V-shaped groove; the number of the support frames (1) is two, and the support frames are symmetrically distributed.
3. The nuclear power chemical pipeline ice plug isolation testing device of claim 1, characterized in that: the two ends of the ice plug experiment pipeline (2) are sealed by transparent flanges; a water inlet hole (22), a water outlet hole (23) and a pressure gauge mounting hole (24) are formed in the ice plug experiment pipeline (2).
4. The nuclear power chemical pipeline ice plug isolation testing device of claim 1, characterized in that: the strain measuring device (9) comprises low-temperature strain gauges (3), and the low-temperature strain gauges (3) are uniformly distributed on the ice plug experiment pipeline (2); the probe of the low-temperature measuring device (10) obtains the temperature of the outer surface of the ice plug experiment pipeline (2).
5. The nuclear power chemical pipeline ice plug isolation testing device of claim 1, characterized in that: the ice plug preparation device mainly comprises an ice plug jacket device (7), a liquid nitrogen pipe, a regulating valve, a liquid nitrogen bottle (11) and a liquid nitrogen pump (12); the ice plug jacket device (7) is fixedly connected with a liquid nitrogen pump (12) through a liquid nitrogen pipe, and an adjusting valve is fixedly arranged on the liquid nitrogen pipe; the liquid nitrogen pump (12) is connected with the liquid nitrogen bottle (11) through a pipeline.
6. The nuclear power chemical pipeline ice plug isolation testing device of claim 5, characterized in that: the center of the ice plug experiment pipeline (2) is fixedly provided with an ice plug jacket device (7), and the ice plug jacket device (7) clamps the ice plug experiment pipeline (2) by using a bolt.
7. The nuclear power chemical pipeline ice plug isolation testing device of claim 1, characterized in that: and the right flange of the ice plug experiment pipeline (2) is fixedly connected with the high-speed camera (6).
8. The nuclear power chemical pipeline ice plug isolation testing device of claim 1, characterized in that: and a transmission light source (8) is arranged on the left side of the ice plug experiment pipeline (2).
9. The nuclear power chemical pipeline ice plug isolation testing device of claim 1, characterized in that: the pressure measuring device (5) is a pressure gauge, and the pressure gauge is connected with the ice plug experiment pipeline (2) through threads.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011057567.4A CN112228779A (en) | 2020-09-30 | 2020-09-30 | Nuclear power chemical pipeline ice plug isolation testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011057567.4A CN112228779A (en) | 2020-09-30 | 2020-09-30 | Nuclear power chemical pipeline ice plug isolation testing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112228779A true CN112228779A (en) | 2021-01-15 |
Family
ID=74119758
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011057567.4A Pending CN112228779A (en) | 2020-09-30 | 2020-09-30 | Nuclear power chemical pipeline ice plug isolation testing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112228779A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110763273A (en) * | 2019-10-30 | 2020-02-07 | 无锡纽思铁科能源科技有限公司 | Ice plug forming process detection device |
| CN112802618A (en) * | 2021-04-19 | 2021-05-14 | 三门核电有限公司 | Ice plug isolation process for nuclear power explosion valve |
| CN114739803A (en) * | 2022-04-22 | 2022-07-12 | 浙江工业大学 | Ice plug isolation test device in pipeline operation |
| CN114923524A (en) * | 2022-05-26 | 2022-08-19 | 浙江工业大学 | Nuclear power pipeline ice plug safety test device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107741372A (en) * | 2017-10-06 | 2018-02-27 | 大连理工大学 | A kind of experimental provision of the rock rupture under liquid nitrogen cold shock effect |
| WO2019148744A1 (en) * | 2018-02-02 | 2019-08-08 | 中国矿业大学 | Triaxial mechanical testing device and method for simulating high-pressure water freezing into ice |
| CN110763273A (en) * | 2019-10-30 | 2020-02-07 | 无锡纽思铁科能源科技有限公司 | Ice plug forming process detection device |
| CN110763272A (en) * | 2019-10-30 | 2020-02-07 | 无锡纽思铁科能源科技有限公司 | Pipeline ice plug experimental facility |
| CN213746167U (en) * | 2020-09-30 | 2021-07-20 | 中核核电运行管理有限公司 | Nuclear power chemical pipeline ice plug isolation testing device |
-
2020
- 2020-09-30 CN CN202011057567.4A patent/CN112228779A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107741372A (en) * | 2017-10-06 | 2018-02-27 | 大连理工大学 | A kind of experimental provision of the rock rupture under liquid nitrogen cold shock effect |
| WO2019148744A1 (en) * | 2018-02-02 | 2019-08-08 | 中国矿业大学 | Triaxial mechanical testing device and method for simulating high-pressure water freezing into ice |
| CN110763273A (en) * | 2019-10-30 | 2020-02-07 | 无锡纽思铁科能源科技有限公司 | Ice plug forming process detection device |
| CN110763272A (en) * | 2019-10-30 | 2020-02-07 | 无锡纽思铁科能源科技有限公司 | Pipeline ice plug experimental facility |
| CN213746167U (en) * | 2020-09-30 | 2021-07-20 | 中核核电运行管理有限公司 | Nuclear power chemical pipeline ice plug isolation testing device |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110763273A (en) * | 2019-10-30 | 2020-02-07 | 无锡纽思铁科能源科技有限公司 | Ice plug forming process detection device |
| CN112802618A (en) * | 2021-04-19 | 2021-05-14 | 三门核电有限公司 | Ice plug isolation process for nuclear power explosion valve |
| CN114739803A (en) * | 2022-04-22 | 2022-07-12 | 浙江工业大学 | Ice plug isolation test device in pipeline operation |
| CN114923524A (en) * | 2022-05-26 | 2022-08-19 | 浙江工业大学 | Nuclear power pipeline ice plug safety test device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112228779A (en) | Nuclear power chemical pipeline ice plug isolation testing device | |
| CN213746167U (en) | Nuclear power chemical pipeline ice plug isolation testing device | |
| CN110095359B (en) | Material fatigue damage test method under high-pressure hydrogen-doped natural gas environment | |
| CN102323159B (en) | Test method of permeameter contacting with structure in high stress, high hydraulic gradient, and large shear deformation | |
| CN103389247A (en) | Testing system for simulating hydraulic fracture of concrete members under high water pressure | |
| CN113092282B (en) | Geotechnical testing device for low-temperature frozen soil undisturbed sample | |
| CN110095340B (en) | Single-loading damage test method for material in high-pressure hydrogen-doped natural gas environment | |
| CN103226091A (en) | High temperature high pressure acoustic emission electrochemistry simulation experiment apparatus capable of loading stress | |
| CN103308254A (en) | Dry test method and dry test device for testing leak tightness of oil cooler | |
| CN110207975A (en) | A kind of adjusting of safety valve pressure and package seal checker and method | |
| CN105736953A (en) | Pressure sensing based liquid ammonia pipeline leak detection system with cladding layer and detection method | |
| CN212432897U (en) | Slurry crack grouting simulation device under high water pressure | |
| CN110118690B (en) | High-pressure hydrogen-doped natural gas environment material performance damage evaluation device | |
| CN117723406A (en) | True three-dimensional stress seepage coupling test system and method for deep geological reservoir rock mass | |
| CN111855527A (en) | Damaged concrete gas permeability detection device and method | |
| CN116242973A (en) | Experimental device and method for evaluating fault instability induced by carbon dioxide geological sequestration | |
| CN106546491B (en) | Detachable rock mass lateral load and water pressure coupling auxiliary test device | |
| CN101246138B (en) | Membrane electrode non-destructive detection device | |
| WO2023213040A1 (en) | Curved pressure-resistant shell equivalent simulation testing apparatus and testing method | |
| CN216349425U (en) | Hydrostatic test device of pressure-bearing thin-wall cylinder | |
| CN215812290U (en) | Press from both sides mud fault zone infiltration and destroy measurement device that falls on a slope | |
| CN115200992A (en) | Method for testing stress relaxation of sealing gasket-segment groove contact surface | |
| WO2021088239A1 (en) | Device and method for measuring dynamic lateral strain of test piece by means of liquid volume | |
| CN112798083A (en) | Flowmeter compressive strength and leakproofness test device | |
| CN209821181U (en) | Dissolved oxygen sensor test device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |