Material performance testing device under multi-field coupling LOCA working condition

Abstract

The utility model discloses a material performance testing device under a multi-field coupling LOCA working condition. The material performance testing device comprises an argon bottle, a first pressure reducing valve, a first booster pump, an air compressor, a first electric proportional valve, a first pressure sensor, a first testing furnace, a second pressure reducing valve, a first vent valve, a first exhaust valve, a first flow controller and a first diameter micrometer, one input port of the first booster pump is communicated with the argon bottle through a pipeline, the other input port of the first booster pump is communicated with the air compressor through a pipeline, and the output port of the first booster pump is communicated with one end of a test piece to be tested. According to the utility model, material performance tests of tension, pressure and temperature under certain parameters can be carried out on the zirconium alloy pipe in a vacuum atmosphere, an inert gas atmosphere or a water vapor atmosphere, the problem that conventional equipment cannot carry out related parameter performance tests on the zirconium alloy pipe in a complex environment of multi-field coupling is solved, and the practicability is strong.

Description

Technical Field

[0001] The utility model relates to the technical field of zirconium alloy pipe performance testing, in particular to a material performance testing device under multi-field coupling LOCA working conditions. Background Art

[0002] In order to avoid LOCA accidents (Loss Of Coolant Accident) in nuclear power plants, the performance of zirconium alloy pipes needs to be tested after production. However, most of the current testing equipment is still used to test the temperature and tensile performance of the material, and cannot truly simulate the use of zirconium alloy pipes in different temperatures and complex use environments. Therefore, it needs to be improved. Utility Model Content

[0003] The purpose of the utility model is to provide a material performance testing device under multi-field coupling LOCA conditions. Through the device, zirconium alloy pipes can be tested for tension, pressure and temperature under certain parameters in a vacuum atmosphere, an inert gas atmosphere or a water vapor atmosphere, thereby solving the problem that conventional equipment cannot perform relevant parameter performance tests on zirconium alloy pipes in a complex environment of multi-field coupling, and the utility model has strong practicality.

[0004] In order to achieve the above purpose, the following technical solutions are adopted:

[0005] A material property testing device under multi-field coupled LOCA working conditions, comprising an argon gas cylinder, a first pressure reducing valve, a first booster pump, an air compressor, a first electrical proportional valve, a first pressure sensor, a first test furnace, a second pressure reducing valve, a first vent valve, a first exhaust valve, a first flow controller, and a first diameter micrometer; one of the input ports of the first booster pump is connected to the argon gas cylinder via a pipeline, the other input port of the first booster pump is connected to the air compressor via a pipeline, and the output port of the first booster pump is connected to one end of a test piece to be tested; the first test furnace is arranged in a vertical direction, the test piece to be tested is installed in the first test furnace in a vertical direction, and the other end of the test piece to be tested is also installed with a first sealing plug; the first A first heating assembly is also installed in the test furnace, a first observation window is also installed on the outer wall of the first test furnace, and a first diameter micrometer is arranged near the first observation window; the first pressure reducing valve is installed on the pipeline between the argon gas cylinder and the first booster pump, and a first ventilation pipe is also connected to the pipeline between the first pressure reducing valve and the argon gas cylinder; one end of the first ventilation pipe is connected to the first test furnace, and the second pressure reducing valve, the first flow controller, and the first ventilation valve are installed on the first ventilation pipe in sequence; the first pressure sensor is installed on the pipeline between the first booster pump and the test piece to be tested, and the first electrical proportional valve is installed on the pipeline between the first air compressor and the first booster pump; the first exhaust valve is connected to the first test furnace via a pipeline.

[0006] Furthermore, it also includes a first vacuuming component connected to the first test furnace.

[0007] Furthermore, it also includes a first tension component connected to one end of the test piece to be tested.

[0008] Furthermore, a first filter, a second pressure sensor, and a first air intake stop valve are sequentially installed on the pipeline between the argon gas cylinder and the first pressure reducing valve.

[0009] Furthermore, a first buffer tank, a first safety stop valve, and a first safety control valve are sequentially installed on the pipeline between the first boost pump and the first pressure sensor.

[0010] Furthermore, a first air relief pipe is connected to the pipeline between the first boost pump and the first safety stop valve; and a first air relief valve and a first muffler are sequentially installed on the first air relief pipe.

[0011] Furthermore, a first manual sliding valve and a second filter are installed in sequence on the pipeline between the air compressor and the first electrical proportional valve; a pressure dividing pipe is connected to the pipeline between the second filter and the first electrical proportional valve, and a first pressure regulating valve and a solenoid valve group are installed on the pressure dividing pipe.

[0012] Furthermore, it also includes a second boosting pump, a second electrical proportional valve, a third pressure reducing valve, a second air intake stop valve, a third pressure sensor, a second test furnace, a steam passing component, and a second diameter micrometer; a first air outlet is also reserved on the pipeline between the first filter and the first air intake stop valve, and a second air outlet is also reserved on the pipeline between the second filter and the first electrical proportional valve; one of the input ports of the second boosting pump is connected to the third pressure reducing valve, the second air intake stop valve, and the first air outlet in sequence through a pipeline, and the other input port of the second boosting pump is connected to the second electrical proportional valve and the second air outlet in sequence through a pipeline, and the second The output port of the booster pump is connected to one end of another test piece to be tested; the second test furnace is arranged in the vertical direction, the other test piece to be tested is installed in the second test furnace in the vertical direction, and a second sealing plug is also installed at the other end of the other test piece to be tested; a second heating assembly is also installed in the second test furnace, a second observation window is also installed on the outer wall of the second test furnace, and a second diameter micrometer is arranged near the second observation window; the steam-passing assembly is connected to the second test furnace, and a steam exhaust port is also provided on the second test furnace; the third pressure sensor is installed on the pipeline between the second booster pump and the other test piece to be tested.

[0013] Furthermore, the steam passing component includes a quenching water tank, a steam generator, a steam passing valve, a steam exhaust valve, a steam passing pipe, and a steam exhaust pipe; the steam passing pipe is connected to the second test furnace, and the quenching water tank, the steam generator, and the steam passing valve are installed on the steam passing pipe in sequence; the steam exhaust pipe is connected to the steam exhaust port, and the steam exhaust valve is installed on the steam exhaust pipe.

[0014] Furthermore, it also includes a second vacuum assembly and a second tension assembly.

[0015] By adopting the above scheme, the beneficial effects of the utility model are:

[0016] This device can be used to carry out material performance tests of tension, pressure and temperature under certain parameters in a vacuum atmosphere, an inert gas atmosphere or a water vapor atmosphere. It solves the problem that conventional equipment cannot carry out relevant parameter performance tests on zirconium alloy pipes in a complex environment of multi-field coupling, and is highly practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the principle of one embodiment of the utility model;

[0018] Figure 2 It is a principle schematic diagram of another embodiment of the utility model;

[0019] Figure 3 This is a schematic diagram of the principle of the steam passing component of the utility model;

[0020] The accompanying drawings illustrate:

[0021] 1. Argon gas bottle; 2. First pressure reducing valve; 3. First booster pump; 4. Air compressor; 5. First electrical proportional valve; 6. First pressure sensor; 7. First test furnace; 8. Second pressure reducing valve; 9. First ventilation valve; 10. First exhaust valve; 11. First flow controller; 12. First diameter micrometer; 13. First ventilation pipe; 14. First vacuum pumping assembly; 15. First tension assembly; 16. First filter; 17. Second pressure sensor; 18. First air intake stop valve; 24. First hand slide valve; 25. Second filter; 26. Pressure dividing pipe; 27. First pressure regulating valve; 28. Solenoid valve group; 2 9. Second booster pump; 30. Second electrical proportional valve; 31. Third pressure reducing valve; 32. Second air inlet stop valve; 33. Third pressure sensor; 34. Second test furnace; 35. Steam-passing assembly; 36. Second diameter micrometer; 37. First air outlet; 38. Second air outlet; 39. Second tension assembly; 181. First buffer tank; 191. First safety stop valve; 201. First safety control valve; 211. First air bleed pipe; 221. First air bleed valve; 231. First muffler; 351. Quenching water tank; 352. Steam generator; 353. Steam-passing valve; 354. Steam exhaust valve. DETAILED DESCRIPTION

[0022] The present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0023] Reference Figures 1 to 3As shown, the utility model provides a material property testing device under multi-field coupled LOCA working conditions. In one embodiment, it includes an argon gas cylinder 1, a first pressure reducing valve 2, a first booster pump 3, an air compressor 4, a first electrical proportional valve 5, a first pressure sensor 6, a first test furnace 7, a second pressure reducing valve 8, a first ventilation valve 9, a first exhaust valve 10, a first flow controller 11, and a first diameter micrometer 12; one of the input ports of the first booster pump 3 is connected to the argon gas cylinder 1 through a pipeline, and the other input port of the first booster pump 3 is connected to the air compressor 4 through a pipeline, and the output port of the first booster pump 3 is connected to one end of the test piece to be tested; the first test furnace 7 is arranged in a vertical direction, and the test piece to be tested is installed in the first test furnace 7 in a vertical direction, and the other end of the test piece to be tested is also installed with a first sealing plug ; A first heating assembly is also installed in the first test furnace 7, and a first observation window is also installed on the outer wall of the first test furnace 7, and a first diameter micrometer 12 is arranged near the first observation window; the first pressure reducing valve 2 is installed on the pipeline between the argon gas bottle 1 and the first booster pump 3, and a first ventilation pipe 13 is also connected to the pipeline between the first pressure reducing valve 2 and the argon gas bottle 1; one end of the first ventilation pipe 13 is connected to the first test furnace 7, and the second pressure reducing valve 8, the first flow controller 11, and the first ventilation valve 9 are installed on the first ventilation pipe 13 in sequence; the first pressure sensor 6 is installed on the pipeline between the first booster pump 3 and the test piece to be tested, and the first electrical proportional valve 5 is installed on the pipeline between the first air compressor 4 and the first booster pump 3; the first exhaust valve 10 is connected to the first test furnace 7 via a pipeline.

[0024] Continue to refer to Figures 1 to 3 As shown, in this embodiment, 13Mpa of high-purity argon is stored in the argon cylinder 1, the test pressure is output by the first booster pump 3, and the driving air pressure is controlled by the first electrical proportional valve 5. By controlling the driving air pressure, different gas pressures are input into the test piece to be tested (in this embodiment, the test piece is a zirconium alloy tube) so that the inside of the test piece is filled with air pressure, thereby causing the test piece to creep in the radial direction; the test piece to be tested is placed in the first test furnace 7, and the first heating component is installed in the first test furnace 7. The heating mode can be divided into two types: fast heating and slow heating, wherein, Rapid heating adopts electric heating. The first heating component includes a copper male and a current generator. The current generator is used to control the output of a large current for heating. The heating rate can be set at 0 to 200°C / second. At the same time, infrared temperature measurement can be used for temperature detection. Slow heating can adopt infrared heating. The first heating component may include an infrared heating tube, which can radiate heat to the specimen through the infrared heating tube. The heating rate can be set at ≥20°C / minute. Thermocouple temperature measurement can be used for temperature detection, thereby simulating the use scenarios of the specimen in different high temperature environments.

[0025] Meanwhile, in this embodiment, a first vacuuming assembly 14 connected to the first test furnace 7 and a first tension assembly 15 connected to one end of the test piece to be tested are also included. The first vacuuming assembly 14 includes a mechanical pump and a molecular pump, which can extract the air inside the first test furnace 7 to meet the requirements of the vacuum environment test. At the same time, a resistance gauge and an ionization gauge are also provided to detect the real-time vacuum pressure under the current environment in the furnace; the first tension assembly 15 can be a tension machine, which can apply axial tension to the test piece, thereby realizing the axial tension test. In the above-mentioned various test processes, the first diameter micrometer 12 can be used to photograph the test piece inside the first test furnace 7 and various strain changes during the test process.

[0026] In addition, in this embodiment, material property tests of tension, pressure and temperature of the specimen can be carried out in an inert gas atmosphere, that is, a certain flow rate of inert gas (argon) is input into the first test furnace 7 through the second pressure reducing valve 8 and the first vent valve 9, and a first flow controller 11 is provided to set the input gas flow rate. After the test, the gas can be discharged through the first exhaust valve 10. At the same time, a solid core shaft is installed in the specimen to be tested. The presence of the core shaft effectively ensures the uniformity of the force applied to the specimen, and does not cause the collapse of the specimen, thereby improving the success rate of the test.

[0027] In one embodiment, the pipeline between the argon cylinder 1 and the first pressure reducing valve 2 is also sequentially installed with a first filter 16, a second pressure sensor 17, and a first air intake stop valve 18; the pipeline between the first booster pump 3 and the first pressure sensor 6 is also sequentially installed with a first buffer tank 181, a first safety stop valve 191, and a first safety control valve 201; the pipeline between the first booster pump 3 and the first safety stop valve 191 is also connected with a first air release pipe 211; the first air release pipe 211 is also sequentially installed with a first air release valve 221 and a first muffler 231. Through the two pressure sensors, the air pressure in the pipeline can be detected in real time for feedback adjustment. At the same time, the air pressure can be fine-tuned through the first pressure reducing valve 2 and the first buffer tank 181, and the gas pressure can be cut off through the first safety stop valve 191 and the first safety control valve 201 to ensure the safety of the test.

[0028] In one embodiment, a first manual slide valve 24 and a second filter 25 are sequentially installed on the pipeline between the air compressor 4 and the first electrical proportional valve 5; a pressure dividing pipe 26 is also connected to the pipeline between the second filter 25 and the first electrical proportional valve 5, and a first pressure regulating valve 27 and a solenoid valve group 28 are also installed on the pressure dividing pipe 26. The solenoid valve group 28 is provided with a plurality of solenoid valves connected in parallel to control the opening and closing of the above-mentioned related valves.

[0029] In one embodiment, it also includes a second boost pump 29, a second electrical proportional valve 30, a third pressure reducing valve 31, a second air intake stop valve 32, a third pressure sensor 33, a second test furnace 34, a steam passing component 35, and a second diameter micrometer 36; a first air outlet 37 is also reserved on the pipeline between the first filter 16 and the first air intake stop valve 18, and a second air outlet 38 is also reserved on the pipeline between the second filter 25 and the first electrical proportional valve 5; one of the input ports of the second boost pump 29 is connected to the third pressure reducing valve 31, the second air intake stop valve 32, and the first air outlet 37 through a pipeline in sequence, and the other input port of the second boost pump 29 is connected to the second electrical proportional valve 30 and the second air outlet 38 through a pipeline in sequence, and the second The output port of the booster pump 29 is connected to one end of another test piece to be tested; the second test furnace 34 is arranged in the vertical direction, and the other test piece to be tested is installed in the second test furnace 34 in the vertical direction, and a second sealing plug is also installed at the other end of the other test piece to be tested; a second heating component is also installed in the second test furnace 34, and a second observation window is also installed on the outer wall of the second test furnace 34, and a second diameter micrometer 36 is arranged near the second observation window; the steam passing component 35 is connected to the second test furnace 34, and a steam exhaust port is also opened on the second test furnace 34; the third pressure sensor 33 is installed on the pipeline between the second booster pump 29 and the other test piece to be tested; it also includes a second vacuum assembly and a second tension assembly 39.

[0030] In this embodiment, it is mainly used to implement material property tests of tension, pressure and temperature under certain parameters of zirconium alloy pipes in a water vapor atmosphere. The test configuration is similar to the configuration of the zirconium alloy pipes in an inert gas atmosphere. The tension, pressure and temperature tests can be referred to above and will not be repeated here.

[0031] In addition, the steam passing component 35 includes a quenching water tank 351, a steam generator 352, a steam passing valve 353, a steam exhaust valve 354, a steam passing pipe, and a steam exhaust pipe; the steam passing pipe is connected to the second test furnace 34, and the quenching water tank 351, the steam generator 352, and the steam passing valve 353 are sequentially installed on the steam passing pipe; the steam exhaust pipe is connected to the steam exhaust port, and the steam exhaust valve 354 is installed on the steam exhaust pipe. The water vapor atmosphere is formed by heating distilled water into steam using the steam generator 352, and the steam is transmitted to the test environment through the steam passing pipe. After the test, the steam can be discharged through the steam exhaust pipe.

[0032] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A material performance testing device under multi-field coupling LOCA conditions, characterized in that: It includes an argon gas cylinder, a first pressure reducing valve, a first booster pump, an air compressor, a first electrical proportional valve, a first pressure sensor, a first test furnace, a second pressure reducing valve, a first vent valve, a first exhaust valve, a first flow controller, and a first diameter micrometer; one of the input ports of the first booster pump is connected to the argon gas cylinder via a pipeline, the other input port of the first booster pump is connected to the air compressor via a pipeline, and the output port of the first booster pump is connected to one end of a test piece to be tested; the first test furnace is arranged in a vertical direction, the test piece to be tested is installed in the first test furnace in a vertical direction, and the other end of the test piece to be tested is also installed with a first sealing plug; the first test furnace is also installed with a first heating The first test furnace is equipped with a first observation window on its outer wall, and a first diameter micrometer is arranged near the first observation window; the first pressure reducing valve is installed on the pipeline between the argon gas cylinder and the first booster pump, and a first ventilation pipe is also connected to the pipeline between the first pressure reducing valve and the argon gas cylinder; one end of the first ventilation pipe is connected to the first test furnace, and the second pressure reducing valve, the first flow controller, and the first ventilation valve are installed on the first ventilation pipe in sequence; the first pressure sensor is installed on the pipeline between the first booster pump and the specimen to be tested, and the first electrical proportional valve is installed on the pipeline between the first air compressor and the first booster pump; the first exhaust valve is connected to the first test furnace via a pipeline.

2. The material performance testing device under multi-field coupling LOCA conditions according to claim 1 is characterized in that: Also included is a first vacuum assembly in communication with the first test furnace.

3. The material performance testing device under multi-field coupling LOCA conditions according to claim 1 is characterized in that: It also includes a first tension component connected to one end of the test piece to be tested.

4. The material performance testing device under multi-field coupling LOCA conditions according to claim 1 is characterized in that: The first filter, the second pressure sensor and the first air inlet stop valve are sequentially installed on the pipeline between the argon gas cylinder and the first pressure reducing valve.

5. The material performance testing device under multi-field coupling LOCA conditions according to claim 4 is characterized in that: A first buffer tank, a first safety stop valve, and a first safety control valve are sequentially installed on the pipeline between the first boost pump and the first pressure sensor.

6. The material performance testing device under multi-field coupling LOCA conditions according to claim 5 is characterized in that: The pipeline between the first booster pump and the first safety stop valve is also connected with a first air relief pipe; the first air relief valve and the first muffler are also installed in sequence on the first air relief pipe.

7. The material performance testing device under multi-field coupling LOCA conditions according to claim 6 is characterized in that: The pipeline between the air compressor and the first electrical proportional valve is also installed with a first manual sliding valve and a second filter in sequence; the pipeline between the second filter and the first electrical proportional valve is also connected with a pressure dividing pipe, and the pressure dividing pipe is also installed with a first pressure regulating valve and a solenoid valve group.

8. The material performance testing device under multi-field coupling LOCA conditions according to claim 7, characterized in that: It also includes a second booster pump, a second electrical proportional valve, a third pressure reducing valve, a second air intake stop valve, a third pressure sensor, a second test furnace, a steam passing component, and a second diameter micrometer; a first air outlet is also reserved on the pipeline between the first filter and the first air intake stop valve, and a second air outlet is also reserved on the pipeline between the second filter and the first electrical proportional valve; one of the input ports of the second booster pump is connected to the third pressure reducing valve, the second air intake stop valve, and the first air outlet in sequence through a pipeline, and the other input port of the second booster pump is connected to the second electrical proportional valve and the second air outlet in sequence through a pipeline, and the second booster pump The output port is connected with one end of another test piece to be tested; the second test furnace is arranged in the vertical direction, the other test piece to be tested is installed in the second test furnace in the vertical direction, and the other end of the other test piece to be tested is also installed with a second sealing plug; a second heating assembly is also installed in the second test furnace, a second observation window is also installed on the outer wall of the second test furnace, and a second diameter micrometer is arranged near the second observation window; the steam passing assembly is connected with the second test furnace, and the second test furnace is also provided with a steam exhaust port; the third pressure sensor is installed on the pipeline between the second booster pump and the other test piece to be tested.

9. The material performance testing device under multi-field coupling LOCA conditions according to claim 8, characterized in that: The steam passing component includes a quenching water tank, a steam generator, a steam passing valve, a steam exhaust valve, a steam passing pipe, and a steam exhaust pipe; the steam passing pipe is connected to the second test furnace, and the quenching water tank, the steam generator, and the steam passing valve are installed on the steam passing pipe in sequence; the steam exhaust pipe is connected to the steam exhaust port, and the steam exhaust valve is installed on the steam exhaust pipe.

10. The material performance testing device under multi-field coupling LOCA conditions according to claim 9, characterized in that: It also includes a second vacuum assembly and a second tension assembly.

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