CN114324466B - Nuclear power equipment hydrogen explosion availability verification test device and method - Google Patents
Nuclear power equipment hydrogen explosion availability verification test device and method Download PDFInfo
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- CN114324466B CN114324466B CN202111375175.7A CN202111375175A CN114324466B CN 114324466 B CN114324466 B CN 114324466B CN 202111375175 A CN202111375175 A CN 202111375175A CN 114324466 B CN114324466 B CN 114324466B
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- 238000012360 testing method Methods 0.000 title claims abstract description 118
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 title claims abstract description 58
- 239000001257 hydrogen Substances 0.000 title claims abstract description 54
- 229910052739 hydrogen Inorganic materials 0.000 title claims abstract description 54
- 238000004880 explosion Methods 0.000 title claims abstract description 43
- 238000012795 verification Methods 0.000 title claims abstract description 19
- 238000000034 method Methods 0.000 title claims abstract description 18
- 238000010438 heat treatment Methods 0.000 claims abstract description 54
- 230000000087 stabilizing effect Effects 0.000 claims abstract description 15
- 230000008569 process Effects 0.000 claims abstract description 7
- 230000001105 regulatory effect Effects 0.000 claims description 20
- 238000010998 test method Methods 0.000 claims description 7
- 239000007789 gas Substances 0.000 claims description 6
- 238000005070 sampling Methods 0.000 claims description 6
- 230000001276 controlling effect Effects 0.000 claims description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 3
- 238000001514 detection method Methods 0.000 claims description 3
- 239000001301 oxygen Substances 0.000 claims description 3
- 229910052760 oxygen Inorganic materials 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 238000003756 stirring Methods 0.000 claims description 3
- 238000003780 insertion Methods 0.000 claims description 2
- 230000037431 insertion Effects 0.000 claims description 2
- 238000007689 inspection Methods 0.000 claims description 2
- 238000002156 mixing Methods 0.000 claims description 2
- 230000000630 rising effect Effects 0.000 claims description 2
- 238000002485 combustion reaction Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000007613 environmental effect Effects 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 230000005180 public health Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- ATYZRBBOXUWECY-UHFFFAOYSA-N zirconium;hydrate Chemical compound O.[Zr] ATYZRBBOXUWECY-UHFFFAOYSA-N 0.000 description 1
Classifications
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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
Abstract
The invention relates to a nuclear power equipment hydrogen explosion availability verification test device and method, comprising a horizontal explosion-proof test tank, a test shelving platform, two groups of temperature stabilizing heating cores, two groups of heating cores, a fan, a tank hydrogen gas inlet pipeline, a tank air inlet pipeline, a tank exhaust pipeline, a paperless temperature recorder, a microcomputer pressure measuring device communicated with the explosion-proof test tank and a temperature sensor; the device is used for realizing the real explosion test under the condition that the whole process temperature requirement required by the standard is met in the test process, so that the hydrogen explosion availability of the nuclear power equipment is effectively tested.
Description
Technical Field
The invention relates to a device safety adaptability technology, in particular to a nuclear power device hydrogen explosion availability verification test device and method.
Background
When a serious accident occurs in a pressurized water reactor nuclear power plant, a great amount of hydrogen is released into the containment due to the zirconium water reaction of the reactor core, and when the hydrogen is ignited in the containment, instantaneous high temperature and high pressure are generated. Corresponding devices and meters are considered in the design of the nuclear power plant to ensure the integrity of the containment boundaries in severe accidents, thereby ensuring public health, for which it must be determined whether they can perform the intended functions in the harsh environment described above. Test methods are commonly employed to demonstrate the usability of equipment and meters under severe accident environmental conditions. However, under the influence of space effects, thermal components, and the like, it is difficult to completely reproduce the hydrogen combustion environmental conditions (target environments) within the containment during the test.
For safety, all devices used in the pressurized water reactor nuclear power plant need to be tested for availability of hydrogen explosion. When a serious accident is simulated, the equipment can be used under the condition that high temperature and high pressure are instantaneously generated in the containment. And it is difficult to simulate the environmental conditions of the hydrogen combustion explosion in the fail-safe case. Firstly, the temperature situation which completely accords with the instantaneous peak of the temperature and the trend of the subsequent temperature drop is difficult to obtain, secondly, the concentration of the combustible gas at high temperature is difficult to reach the explosion condition, the accident environment cannot be completely simulated, and the effectiveness of test judgment is greatly reduced.
The prior conventional method is to decompose and test the hydrogen explosion availability test of the nuclear power equipment, namely, the hydrogen explosion test is divided into a combustible gas combustion test and a pressure experiment test, and the availability of the nuclear power equipment is confirmed through the combustion test and the pressure test respectively. The temperature and pressure cannot be simulated simultaneously. Therefore, no related equipment and facilities exist for how to adopt the test method to simulate the most severe working conditions at the same time to demonstrate the usability of the equipment in the severe accident of the nuclear power plant.
Disclosure of Invention
Aiming at improving the inspection and detection capability of nuclear power equipment, a nuclear power equipment hydrogen explosion availability verification test device and method are provided.
The technical scheme of the invention is as follows: the utility model provides a nuclear power equipment hydrogen explosion availability verification test device, includes horizontal explosion-proof test jar, test rest platform, two sets of steady temperature heating cores, two sets of intensification heating cores, fan, jar body hydrogen air inlet line, jar body exhaust line, paperless temperature recorder, lead to explosion-proof test jar's microcomputer pressure measuring device and temperature sensor; the test shelving platform is fixed at the bottom of the inside of the explosion-proof test tank, two groups of temperature stabilizing heating cores are inserted into the tank from the outside of the explosion-proof test tank and are arranged at two sides of the test shelving platform, the two groups of temperature rising heating cores are arranged above the test shelving platform in the explosion-proof test tank, a temperature mixing fan with a fixed bracket is arranged at the lower corner of the explosion-proof test tank far away from the insertion end of the two groups of temperature stabilizing heating cores, and an inner temperature sensor in the tank and an inner temperature sensor in a test sample are connected with a paperless temperature recorder.
Preferably, the tank air inlet pipeline and the tank air inlet pipeline are positioned at one side of the bottom of the horizontal explosion-proof test tank, and the tank exhaust pipeline is arranged at the other end of the horizontal explosion-proof test tank far away from the two pipelines.
Preferably, the tank hydrogen inlet pipeline sequentially comprises a hydrogen inlet, a safety valve, a flow regulating valve and a pilot electromagnetic valve.
Preferably, the tank air inlet pipeline sequentially comprises an air inlet, a pressure regulating device, a parallel electromagnetic valve, a flow regulating valve and a pilot electromagnetic valve, and a safety valve is connected between the pilot electromagnetic valve and the electromagnetic valve.
Preferably, the tank body exhaust pipeline sequentially comprises a pilot electromagnetic valve, a flow regulating valve and an electromagnetic valve which are connected in parallel, a sampling port and an exhaust port from the outlet of the horizontal explosion-proof test tank.
The nuclear power equipment hydrogen explosion availability verification test method comprises the following steps of:
1) Checking equipment: checking tightness of the horizontal explosion-proof test tank and each valve body and detection equipment;
2) Air distribution in the horizontal explosion-proof test tank:
the method comprises the steps of firstly opening a pilot electromagnetic valve connected with a horizontal explosion-proof test tank in a hydrogen inlet pipeline, then adjusting the flow of a combustible gas hydrogen inlet to 200L/min through a flow regulating valve, filling hydrogen into the horizontal explosion-proof test tank for 4-8 minutes to enable the pressure in the tank to be 0.04-0.05 MPa, closing all valve bodies of the tank body, turning on a fan power supply to stir for 100 seconds, measuring and recording the hydrogen concentration in the tank body by using an oxygen meter, and turning off the fan power supply after the hydrogen concentration is reached; the pilot electromagnetic valve on the exhaust pipeline is opened to reduce the pressure in the tank body to the atmospheric pressure. In the exhaust process, the pilot is conducted on the electromagnetic valve to conduct rapid exhaust, the electromagnetic valve is closed when the pressure is close to the atmospheric pressure, the exhaust speed is controlled by controlling the flow regulating valve, and meanwhile, the exhaust pressure is collected at the sampling port;
3) Heating the inside of the tank body:
all connecting pipeline valves of the tank body are in a closed state, two groups of stable temperature heating cores are electrified, after the internal environment of the tank body of the horizontal type explosion-proof test tank reaches 150 ℃, the two groups of heating cores are electrified, when the internal temperature of a sample to be tested reaches 400 ℃, the power supply of a small heater is turned off, and after a fan power supply is turned on for 1-1.5 minutes; turning off the power supply of the fan, turning on two groups of heating core power supplies for 1-1.5 minutes to ensure that the internal temperature of a sample to be tested uniformly reaches 400 ℃, igniting hydrogen in the tank body by using an igniter, and recording the internal explosion pressure and temperature of the tank body;
4) And (3) adjusting the temperature of a heater:
the two groups of temperature-stabilizing heating cores are kept in a working state for 1 hour after explosion test, the temperature control values of the two groups of temperature-stabilizing heating cores are adjusted according to the temperature fed back by the surface temperature sensors of the two groups of temperature-stabilizing heating cores so as to meet the envelope requirement of a test curve, and during the period, the peripheral measuring instruments are used for testing the electrical properties of the tested sample.
Further, the two groups of temperature stabilizing heating cores adopt a PWM control method to maintain the stable temperature of the 2000L horizontal explosion-proof test tank.
Further, the nuclear power equipment hydrogen explosion availability verification test method specifically comprises the following steps of:
1.1 Fixing a plurality of temperature sensors around the sample to be tested, inside the sample to be tested, around two groups of temperature stabilizing heating cores and two groups of heating cores and at the front end cover and the rear end cover of the tank body respectively;
1.2 Respectively turning on two groups of temperature stabilizing heating cores and two groups of heating core power supplies for heating, and verifying that each temperature sensor is in a normal working state; the temperature sensor works normally, and the power supply of the heater is turned off;
1.3), turning on a fan power supply to verify that the fan is in a normal working state; the fan normally turns off the power supply when working; 1.4 Respectively debugging the pressure transmitter and the igniter to verify whether the functions of the pressure transmitter and the igniter are normal;
1.5 When the temperature in the test tank body is consistent with the ambient temperature, the tank cover screw is reliably screwed;
1.6 All valve body switches outside the horizontal explosion-proof test tank 3 are in a closed state, an air inlet pipeline is opened, compressed air is filled into the tank body to enable the pressure inside the tank body to be 0.3MPa, the tank body is kept for 5 minutes, and the overall tightness of the tank body is confirmed;
1.7 After the overall tightness of the tank body is confirmed, opening an exhaust pipeline to reduce the pressure in the tank body to the atmospheric pressure;
1.8 All valves are closed and ready for testing.
The invention has the beneficial effects that: the hydrogen explosion availability verification test device and method for the nuclear power equipment can simulate the test environment required by the hydrogen explosion test, the equipment is tested in a real high-temperature explosion environment, and under the condition that the test process meets the whole-course temperature requirement required by the standard, the real explosion test is realized, and the explosion-proof grade of a nuclear power finished product is effectively tested.
Drawings
FIG. 1 is a schematic diagram of a hydrogen explosion availability verification test device of nuclear power equipment;
FIG. 2 is a cross-sectional view of a hydrogen explosion availability verification test device of the nuclear power equipment;
FIG. 3 is a schematic diagram of a hydrogen explosion availability verification test device for nuclear power equipment;
FIG. 4 is a graph of temperature acquisition for a nuclear power plant explosion test of the present invention;
FIG. 5 is a graph of pressure acquisition for a nuclear power plant explosion test of the present invention.
Detailed Description
The invention will now be described in detail with reference to the drawings and specific examples. The present embodiment is implemented on the premise of the technical scheme of the present invention, and a detailed implementation manner and a specific operation process are given, but the protection scope of the present invention is not limited to the following examples.
As shown in the structural schematic diagrams of a hydrogen explosion availability verification test device of nuclear power equipment in figures 1 and 2, the internal volume of a horizontal explosion-proof test tank 3 is 2000L, heat preservation treatment is carried out outside the tank, a test placing platform 6 is fixed at the inner bottom of the horizontal explosion-proof test tank 3, two groups of stable temperature heating cores 1 (17 KW-25 KW) are inserted into the tank from the outside of the horizontal explosion-proof test tank 3, are arranged on two sides of the test placing platform 6, two groups of heating cores 4 (1 KW) are arranged above the test placing platform 6 in the horizontal explosion-proof test tank 3, a fan 7 fixed by a bracket is arranged at the lower corner in the horizontal explosion-proof test tank 3 far from the inserted end of the stable temperature heating core 1, a thermocouple 8 is arranged at one end of the stable temperature heating core 1 outside the horizontal explosion-proof test tank 3, the temperature of the stable temperature heating core 1 is directly detected, a flange sealing port 2 is arranged at one end of the horizontal explosion-proof test tank 3, and the pressure tester is used for burying pressure after test ignition.
As shown in a test schematic diagram of a hydrogen explosion test device of nuclear power equipment in fig. 3, a hydrogen gas inlet pipeline and an air inlet pipeline are arranged on one side of the bottom of the horizontal explosion-proof test tank 3, an exhaust pipeline is arranged on the other end of the horizontal explosion-proof test tank 3 far away from the two pipelines, and the hydrogen gas inlet pipeline sequentially comprises a hydrogen inlet 20, a safety valve 21, a flow regulating valve 22 and a pilot electromagnetic valve 23; the air inlet pipeline sequentially comprises an air inlet 30, a pressure regulating device 31, a parallel electromagnetic valve 32, a flow regulating valve 33 and a pilot electromagnetic valve 35, and a safety valve 34 is connected between the pilot electromagnetic valve 35 and the electromagnetic valve 32; the exhaust pipeline sequentially comprises a pilot electromagnetic valve 40, a flow regulating valve 41 and an electromagnetic valve 42 which are connected in parallel, a sampling port 43 and an exhaust port 44 from the outlet of the horizontal explosion-proof test tank 3. The upper part of the horizontal explosion-proof test tank 3 is provided with a paperless temperature recorder 50 and a microcomputer pressure measuring device 51, and the temperature and the pressure in the tank are monitored in real time.
The hydrogen explosion testing method for the nuclear power equipment comprises the following specific steps:
1. checking equipment:
1.1, respectively fixing a plurality of temperature sensors around a sample to be tested, inside the sample to be tested, around two groups of temperature stabilizing heating cores 1 and two groups of heating cores 4 and at front and rear end covers of a tank body;
1.2, respectively switching on two groups of temperature stabilizing heating cores 1 and two groups of heating cores 4 to verify that each temperature sensor is in a normal working state; the temperature sensor works normally and the power supply of the heater is turned off.
1.3, turning on a fan power supply to verify that the fan is in a normal working state; the fan works normally to turn off the power supply.
1.4, respectively debugging the pressure transmitter and the igniter, and verifying whether the functions of the pressure transmitter and the igniter are normal;
and 1.5, reliably screwing the tank cover screw when the temperature in the test tank body is consistent with the ambient temperature.
1.6, ensuring that all valve body switches outside the horizontal explosion-proof test tank 3 are in a closed state, opening an air inlet pipeline to charge compressed air into the tank body to enable the pressure in the tank body to be 0.3MPa, keeping for 5 minutes, and confirming the overall tightness of the tank body.
1.7, after the overall tightness of the tank body is confirmed, opening an exhaust pipeline to reduce the pressure in the tank body to the atmospheric pressure.
And 1.8, closing all valves after finishing and preparing for testing.
2. And (3) gas distribution:
the horizontal explosion-proof test tank 3 is filled with atmospheric air, a pilot electromagnetic valve 23 connected with the horizontal explosion-proof test tank 3 in a hydrogen inlet pipeline is firstly opened, then the flow of a combustible gas hydrogen inlet is regulated to 200L/min through a flow regulating valve 22, hydrogen is filled into the horizontal explosion-proof test tank 3 for 4-8 minutes, the pressure in the tank is regulated to 0.04-0.05 MPa, all valve bodies of the tank body are closed, a fan power supply is turned on for stirring for 100 seconds, the concentration of hydrogen in the tank body is measured by an oxygen meter and recorded (the concentration of hydrogen in the tank body is controlled to be 30-40 percent), and the fan power supply is turned off after the concentration is reached; the exhaust line pilot solenoid valve 40 is opened to reduce the internal pressure of the tank to atmospheric pressure. During the exhaust process, the pilot energizes the solenoid valve 42 to rapidly exhaust, closes the solenoid valve 42 when the pressure approaches atmospheric pressure, controls the exhaust speed by controlling the flow rate regulating valve 41, and simultaneously collects the exhaust pressure at the sampling port 43.
3. Heating the inside of the tank body:
all connecting pipeline valves of the tank body are in a closed state, two groups of stable temperature heating cores 1 are electrified, after the internal environment of the tank body of the horizontal type explosion-proof test tank 3 reaches 150 ℃, two groups of heating cores 4 (the temperature protection of which is 400 ℃) are electrified, when the temperature near a tested sample reaches 400 ℃, the power supply of a small heater is turned off, and after a fan power supply is turned on for 1-1.5 minutes; and (3) turning off the power supply of the fan, turning on the power supply of the two groups of heating cores 4 for 1-1.5 minutes, ensuring that the temperature near the sample to be tested uniformly reaches 400 ℃, igniting hydrogen in the tank body by using the igniter, and recording the explosion pressure and the temperature in the tank body. The two groups of temperature stabilizing heating cores 1 adopt a PWM control method to maintain the stable temperature of the 2000L horizontal explosion-proof test tank 3.
4. Heater temperature adjustment
The two groups of temperature-stabilizing heating cores 1 keep working state for 1 hour after explosion test, and the two groups of temperature-raising heating cores 4 adjust temperature control values according to the temperature fed back by the surface temperature sensors so as to meet the envelope requirement of the test curve. During this time, the electrical properties of the test sample were tested with a peripheral meter.
The temperature and pressure curves shown in fig. 4 and 5 show peaks in the moment of explosion and illustrate that the explosion is realized, wherein the curve in fig. 4 is the explosion upper-punch temperature, but the temperature quickly returns to about 455 degrees required by the envelope of the test curve, and then falls to 300 degrees after about 100S, and then falls to 200 degrees after about 300S, and the subsequent temperature reduction is slow, so that the requirement of the envelope of the test curve is completely met, and the temperature and the pressure of the explosion test are detected simultaneously by one experiment.
The above examples illustrate only a few embodiments of the invention, which are described in detail and are not to be construed as limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.
Claims (5)
1. The hydrogen explosion availability verification test device for the nuclear power equipment is characterized by comprising a horizontal explosion-proof test tank, a test shelving platform, two groups of temperature stabilizing heating cores, two groups of heating cores, a fan, a tank hydrogen gas inlet pipeline, a tank air inlet pipeline, a tank exhaust pipeline, a paperless temperature recorder, a microcomputer pressure measuring device communicated with the explosion-proof test tank and a temperature sensor; the test shelving platform is fixed at the bottom of the inside of the explosion-proof test tank, two groups of temperature stabilizing heating cores are inserted into the tank from the outside of the explosion-proof test tank and are arranged at two sides of the test shelving platform, the two groups of temperature rising heating cores are arranged above the test shelving platform in the explosion-proof test tank, a temperature mixing fan with a fixed bracket is arranged at the lower corner of the inside of the explosion-proof test tank far away from the insertion end of the two groups of temperature stabilizing heating cores, and an inner temperature sensor in the tank and an inner temperature sensor in a test sample are connected with a paperless temperature recorder;
the tank hydrogen inlet pipeline sequentially comprises a hydrogen inlet, a safety valve, a flow regulating valve and a pilot electromagnetic valve;
the tank air inlet pipeline sequentially comprises an air inlet, a pressure regulating device, a parallel electromagnetic valve, a flow regulating valve and a pilot electromagnetic valve, wherein a safety valve is connected between the pilot electromagnetic valve and the electromagnetic valve; the tank body exhaust pipeline sequentially comprises a pilot electromagnetic valve, a flow regulating valve and an electromagnetic valve which are connected in parallel, a sampling port and an exhaust port from the outlet of the horizontal explosion-proof test tank.
2. The nuclear power equipment hydrogen explosion availability verification test device according to claim 1, wherein the tank air inlet pipeline and the tank air inlet pipeline are positioned on one side of the tank bottom of the horizontal explosion-proof test tank, and a tank exhaust pipeline is arranged at the other end of the horizontal explosion-proof test tank far away from the two pipelines.
3. The nuclear power equipment hydrogen explosion availability verification test method comprises the nuclear power equipment hydrogen explosion availability verification test device according to claim 2, and is characterized by comprising the following steps:
1) Checking equipment: checking tightness of the horizontal explosion-proof test tank and each valve body and detection equipment;
2) Air distribution in the horizontal explosion-proof test tank:
the method comprises the steps of firstly opening a pilot electromagnetic valve connected with a horizontal explosion-proof test tank in a hydrogen inlet pipeline, then adjusting the flow of a combustible gas hydrogen inlet to 200L/min through a flow regulating valve, filling hydrogen into the horizontal explosion-proof test tank for 4-8 minutes to enable the pressure in the tank to be 0.04-0.05 MPa, closing all valve bodies of the tank body, turning on a fan power supply to stir for 100 seconds, measuring and recording the hydrogen concentration in the tank body by using an oxygen meter, and turning off the fan power supply after the hydrogen concentration is reached; opening a pilot electromagnetic valve on an exhaust pipeline to reduce the pressure in the tank body to the atmospheric pressure, rapidly exhausting the air by the pilot electromagnetic valve in the exhaust process, closing the electromagnetic valve when the air is close to the atmospheric pressure, controlling the exhaust speed by controlling a flow regulating valve, and collecting the exhaust pressure at a sampling port;
3) Heating the inside of the tank body:
all connecting pipeline valves of the tank body are in a closed state, two groups of stable temperature heating cores are electrified, after the internal environment of the tank body of the horizontal type explosion-proof test tank reaches 150 ℃, the two groups of heating cores are electrified, when the internal temperature of a sample to be tested reaches 400 ℃, the power supply of a small heater is turned off, and after a fan power supply is turned on for 1-1.5 minutes; turning off the power supply of the fan, turning on two groups of heating core power supplies for 1-1.5 minutes to ensure that the internal temperature of a sample to be tested uniformly reaches 400 ℃, igniting hydrogen in the tank body by using an igniter, and recording the internal explosion pressure and temperature of the tank body;
4) And (3) adjusting the temperature of a heater:
the two groups of temperature-stabilizing heating cores are kept in a working state for 1 hour after explosion test, the temperature control values of the two groups of temperature-stabilizing heating cores are adjusted according to the temperature fed back by the surface temperature sensors of the two groups of temperature-stabilizing heating cores so as to meet the envelope requirement of a test curve, and during the period, the peripheral measuring instruments are used for testing the electrical properties of the tested sample.
4. The nuclear power equipment hydrogen explosion availability verification test method according to claim 3, wherein the two groups of temperature stabilizing heating cores maintain the stable temperature of the 2000L horizontal explosion-proof test tank by adopting a PWM control method.
5. The nuclear power plant hydrogen explosion availability verification test method according to claim 3 or 4, wherein the equipment inspection specifically comprises the following steps:
1.1 Fixing a plurality of temperature sensors around the sample to be tested, inside the sample to be tested, around two groups of temperature stabilizing heating cores and two groups of heating cores and at the front end cover and the rear end cover of the tank body respectively;
1.2 Respectively turning on two groups of temperature stabilizing heating cores and two groups of heating core power supplies for heating, and verifying that each temperature sensor is in a normal working state; the temperature sensor works normally, and the power supply of the heater is turned off;
1.3), turning on a fan power supply to verify that the fan is in a normal working state; the fan normally turns off the power supply when working;
1.4 Respectively debugging the pressure transmitter and the igniter to verify whether the functions of the pressure transmitter and the igniter are normal;
1.5 When the temperature in the test tank body is consistent with the ambient temperature, the tank cover screw is reliably screwed;
1.6 All valve body switches outside the horizontal explosion-proof test tank 3 are in a closed state, an air inlet pipeline is opened, compressed air is filled into the tank body to enable the pressure inside the tank body to be 0.3MPa, the tank body is kept for 5 minutes, and the overall tightness of the tank body is confirmed;
1.7 After the overall tightness of the tank body is confirmed, opening an exhaust pipeline to reduce the pressure in the tank body to the atmospheric pressure;
1.8 All valves are closed and ready for testing.
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Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2495323A1 (en) * | 1980-11-11 | 1982-06-04 | Morat Kg Elektro Feinmechanik | CALORIMETER FOR MEASURING COMBUSTION HEAT |
| CN201497642U (en) * | 2009-10-14 | 2010-06-02 | 上海工业自动化仪表研究所 | Explosion relief valve type test device |
| CN203786068U (en) * | 2014-04-25 | 2014-08-20 | 安徽工业大学 | Visualized bidirectional ignition combustion chamber for experiment |
| CN104089976A (en) * | 2014-07-09 | 2014-10-08 | 安徽工业大学 | Observable device applied to solid fuel combustion mechanism research |
| CN104458805A (en) * | 2014-12-18 | 2015-03-25 | 广西大学 | Pulverized coal suspension combustion characteristic trial furnace for cement kiln |
| CN104976929A (en) * | 2015-05-11 | 2015-10-14 | 上海宇航系统工程研究所 | Simulation air source device |
| CN105372404A (en) * | 2015-11-03 | 2016-03-02 | 中煤科工集团重庆研究院有限公司 | Low-temperature gas explosion characteristic test method |
| CN106645283A (en) * | 2016-11-09 | 2017-05-10 | 吉林大学 | Temperature gradient-controllable fire bomb |
| CN108226222A (en) * | 2016-12-21 | 2018-06-29 | 中国石油化工股份有限公司 | A kind of device and method for being used to test combustion explosion of combustible gas parameter |
| CN110018197A (en) * | 2019-05-24 | 2019-07-16 | 中国兵器工业第五九研究所 | A kind of metal material burn test method |
| CN111650245A (en) * | 2020-07-10 | 2020-09-11 | 天津大学 | System and method for testing flameless combustion spontaneous combustion temperature of combustible gas in high-pressure environment |
| CN112432800A (en) * | 2020-11-13 | 2021-03-02 | 上海仪器仪表自控系统检验测试所有限公司 | Device for simultaneously carrying out explosion-proof test on multiple sets of explosion-proof test tanks and gas replacement method |
-
2021
- 2021-11-19 CN CN202111375175.7A patent/CN114324466B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2495323A1 (en) * | 1980-11-11 | 1982-06-04 | Morat Kg Elektro Feinmechanik | CALORIMETER FOR MEASURING COMBUSTION HEAT |
| CN201497642U (en) * | 2009-10-14 | 2010-06-02 | 上海工业自动化仪表研究所 | Explosion relief valve type test device |
| CN203786068U (en) * | 2014-04-25 | 2014-08-20 | 安徽工业大学 | Visualized bidirectional ignition combustion chamber for experiment |
| CN104089976A (en) * | 2014-07-09 | 2014-10-08 | 安徽工业大学 | Observable device applied to solid fuel combustion mechanism research |
| CN104458805A (en) * | 2014-12-18 | 2015-03-25 | 广西大学 | Pulverized coal suspension combustion characteristic trial furnace for cement kiln |
| CN104976929A (en) * | 2015-05-11 | 2015-10-14 | 上海宇航系统工程研究所 | Simulation air source device |
| CN105372404A (en) * | 2015-11-03 | 2016-03-02 | 中煤科工集团重庆研究院有限公司 | Low-temperature gas explosion characteristic test method |
| CN106645283A (en) * | 2016-11-09 | 2017-05-10 | 吉林大学 | Temperature gradient-controllable fire bomb |
| CN108226222A (en) * | 2016-12-21 | 2018-06-29 | 中国石油化工股份有限公司 | A kind of device and method for being used to test combustion explosion of combustible gas parameter |
| CN110018197A (en) * | 2019-05-24 | 2019-07-16 | 中国兵器工业第五九研究所 | A kind of metal material burn test method |
| CN111650245A (en) * | 2020-07-10 | 2020-09-11 | 天津大学 | System and method for testing flameless combustion spontaneous combustion temperature of combustible gas in high-pressure environment |
| CN112432800A (en) * | 2020-11-13 | 2021-03-02 | 上海仪器仪表自控系统检验测试所有限公司 | Device for simultaneously carrying out explosion-proof test on multiple sets of explosion-proof test tanks and gas replacement method |
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