Multi-environment coupled high-temperature and high-pressure water environment comprehensive test platform

Abstract

The invention discloses a multi-environment coupled high-temperature and high-pressure water environment comprehensive test platform which is provided with a lower pulse mechanism and an upper pulse mechanism, the lower pulse mechanism forms pulse water flow through reciprocating motion of a piston, the pulse water flow can impact a horizontal section along a water inlet vertical section, and transient impact force of water outlet flow can be simulated; besides, an upper pulse mechanism is further arranged, vibration of a real parallel section of the heat transfer tube can be reduced by components such as a damping belt, and in order to better conform to the state that the parallel section still slightly vibrates in the actual situation, water inside the test kettle is pushed to impact a horizontal section of the test tube through cooperation of a supporting plate and a one-way piece, so that the purpose of simulating slight vibration is achieved. And a multi-condition real simulation state is realized in cooperation with a lower pulse mechanism, so that accurate performance parameters and service life evaluation data of the heat transfer tube can be obtained.

Description

Technical Field

[0001] The present invention relates to the technical field of high-temperature and high-pressure water environment, and in particular to a high-temperature and high-pressure water environment comprehensive testing platform with multi-environment coupling. Background Art

[0002] Nuclear energy is clean, efficient, economical, and safe. Currently, my country's nuclear power plants are primarily pressurized water reactors (PWRs). In PWR plants, cladding tubes are the primary safety barrier against nuclear leaks, while heat transfer tubes are the secondary. However, during the operation of PWR plants, the flow of liquid inevitably causes fretting or vibration in the heat transfer tubes. This leads to contact between the liquid and the pipe surface, causing wall thinning or even perforation. This can lead to radioactive leakage, seriously compromising the safe and efficient operation of the plant. Therefore, to ensure the stable operation of PWR plants, heat transfer tube testing is necessary to obtain more accurate performance parameters and lifespan assessment data.

[0003] However, existing pressure tests are mostly conducted at room temperature, and some tests based on high-temperature and high-pressure water environments also perform fatigue tests on the material itself, which cannot simulate the actual state of the heat transfer tube. Summary of the Invention

[0004] In view of the above-mentioned defects or deficiencies in the prior art, it is desired to provide a high-temperature and high-pressure water environment comprehensive testing platform with multi-environment coupling.

[0005] The present invention provides a multi-environment coupled high-temperature and high-pressure water environment comprehensive testing platform, comprising:

[0006] The test kettle comprises a kettle body and a kettle cover. A U-shaped test tube is provided inside the kettle body. The test tube comprises a water inlet vertical section, a horizontal section, and a water outlet vertical section.

[0007] An upper pulse mechanism includes a drive shaft passing through the kettle cover, a support plate provided at the bottom end of the drive shaft, the support plate being located below the horizontal section, a one-way member provided at the middle of the support plate corresponding to the horizontal section, the one-way member restricting the flow of liquid from the top to the bottom, and the upper pulse mechanism further including a first drive unit for driving the drive shaft to reciprocate in the vertical direction;

[0008] The lower pulse mechanism includes a guide tube that passes through the bottom of the kettle body and is connected to the vertical water inlet section. A piston is provided at the bottom of the guide tube, a water inlet channel is provided at the top of the guide tube, and a second driving part is provided at the bottom of the guide tube. The second driving part is used to drive the piston to move back and forth in the vertical direction inside the guide tube.

[0009] According to the technical solution provided in the embodiment of the present application, the test platform also includes a lifting mechanism, which includes a door-shaped plate arranged above the test kettle, and a telescopic part is provided on the inner top wall of the door-shaped plate corresponding to the position of the test kettle, one end of the telescopic part is connected to the kettle cover, and the drive shaft is provided in two groups and is respectively located on both sides of the horizontal section, and the two groups of drive shafts are staggered.

[0010] According to the technical solution provided in the embodiment of the present application, the upper pulse mechanism further includes a third driving unit, which is used to drive the driving shaft to rotate.

[0011] According to the technical solution provided in the embodiment of the present application, the first driving part includes a sealing cylinder connected to the kettle cover, a mounting column is provided at the top of the driving shaft, the outer diameter of the mounting column is larger than the outer diameter of the driving shaft, a vibrating magnet is provided at the top of the mounting column, and a second electromagnet is provided at the top of the sealing cylinder;

[0012] The third driving part includes several internal magnets arranged around the side surface of the mounting column, the outer sleeve of the sealing cylinder is provided with a driven gear ring, and the inner wall of the driven gear ring is evenly provided with several external magnets. The kettle cover is located between the two sets of drive shafts and is also provided with a double-sided rack, and the double-sided rack is meshed and connected with each of the driven gear rings.

[0013] According to the technical solution provided in the embodiment of the present application, the second driving part includes a transmission chamber provided at the bottom end of the guide tube, a rotating chamber connected to the interior of the guide tube is provided inside the transmission chamber, a fixed shaft is provided in the middle of the rotating chamber, and a motor for driving the fixed shaft to rotate is provided on the outer wall of the transmission chamber;

[0014] The fixed shaft end is fitted with a main rod, the main rod is connected to a transmission rod for rotation away from the fixed shaft end, the transmission rod is connected to an end rod for rotation away from the main rod end, the end rod is provided with a drive column away from the transmission rod end, and the top of the drive column is connected to the piston.

[0015] According to the technical solution provided in the embodiment of the present application, the lower pulse mechanism further includes:

[0016] A locking portion, used for separating the driving column from the piston and locking the piston, as well as locking the driving column and the piston;

[0017] The liquid flow acceleration part includes a spiral groove provided on the outer surface of the driving column, a guide block that fits with the spiral groove is provided at the bottom end of the piston, the bottom end of the driving column and the top end of the end rod are rotatably connected, and a plurality of rotatable fan blades are evenly arranged on the top end of the driving column around the axis of the driving column, and the axial extension direction of each rotating shaft is perpendicular to the vertical direction, and the bottom end of each fan blade is provided with a second baffle that can abut against the driving column.

[0018] According to the technical solution provided in the embodiment of the present application, the locking part includes a first electromagnet arranged on the outer wall of the guide tube, and a receiving groove and a clamping groove are respectively provided at corresponding positions of the middle of the piston and the top of the driving column. A plurality of first springs are provided on the inner wall of the receiving groove away from the clamping groove, and a magnetic clamping block is installed at the other end of each first spring.

[0019] According to the technical solution provided in the embodiment of the present application, the test platform also includes a water circulation mechanism, which includes a heating kettle arranged on one side of the test kettle, a water inlet pipe is provided between the heating kettle and the test kettle, a first water pump is provided on the water inlet pipe, and a circulation pipe is also provided on the top of the heating kettle, a three-way valve is provided at the other end of the circulation pipe, and one opening of the three-way valve is connected to the water outlet pipe of the test kettle.

[0020] According to the technical solution provided in the embodiment of the present application, the test platform further includes a heat dissipation mechanism, which includes:

[0021] An air collecting fan is provided on one side above the kettle body, and an air outlet channel is installed on the air collecting fan away from the end of the kettle body;

[0022] An air supply fan is provided on the side of the kettle body away from the air receiving fan, and the axis of the air supply fan coincides with the axis of the air receiving fan;

[0023] The slow heating part includes a serpentine pipe arranged between the air supply fan and the kettle body. The heat exchange plane formed by the serpentine pipe has a center normal, and the center normal coincides with the axis of the air collection fan. Both ends of the serpentine pipe are connected to the heating kettle through connecting pipes, and a second water pump is provided on one of the connecting pipes.

[0024] According to the technical solution provided in the embodiment of the present application, a recording mechanism is provided on one side wall inside the door-shaped panel, and the recording mechanism includes a second slide rail provided on the inner side wall of the door-shaped panel, an industrial robot arm is installed on the slider of the second slide rail, and a camera is installed on the execution end of the industrial robot arm.

[0025] Compared with the prior art, the present invention has the following beneficial effects:

[0026] The present invention is provided with a lower pulse mechanism and an upper pulse mechanism. The lower pulse mechanism forms a pulse water flow through the reciprocating motion of the piston. The pulse water flow will impact the horizontal section along the vertical section of the water inlet, which can simulate the short-term impact force of the water flow. The fan blades reciprocate with the driving column to accelerate the water flow, increase the water flow velocity, and thus simulate the state of the water flow inside the heat transfer tube in a high-temperature and high-pressure water environment, making the parameter data obtained in the experiment more accurate.

[0027] In addition, an upper pulse mechanism is also provided. In real life, the parallel sections of heat transfer tubes use components such as shock absorbers to reduce vibration. To better reflect the actual situation where the parallel sections still vibrate slightly, the support plate and one-way member cooperate to push the water inside the test kettle to impact the horizontal section of the test tube, simulating slight vibration. Combined with the lower pulse mechanism, this achieves realistic simulations under multiple conditions, facilitating accurate performance parameters and life assessment data for the heat transfer tubes.

[0028] Furthermore, a lifting mechanism and a heat dissipation mechanism are provided, and the kettle cover and the test tube are lifted by a telescopic part, so that the test tube is taken out for further cutting and testing. Air is blown by the air supply fan of the heat dissipation mechanism, and the air is discharged through the air collection fan after passing through the test tube, thereby achieving the purpose of cooling. In this technology, the air will pass through the serpentine tube before reaching the test tube, and the serpentine tube is connected to the inside of the heating kettle. Therefore, the temperature of the air blown by the air supply fan will not be too low, so that the test tube will not directly contact with the cold air after being separated from the high-temperature and high-pressure water environment, thereby reducing the cracking caused by sudden cooling and avoiding the interference of sudden cooling on the test results.

[0029] It should be understood that the contents described in the summary of the invention are not intended to limit the key or important features of the embodiments of the present invention, nor are they intended to limit the scope of the present invention. Other features of the present invention will become readily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Other features, objects and advantages of the present invention will become more apparent upon reading the detailed description of non-limiting embodiments made with reference to the following drawings:

[0031] Figure 1 A schematic diagram of the structure of a multi-environment coupled high-temperature and high-pressure water environment comprehensive testing platform provided in an embodiment of the present application;

[0032] Figure 2 A schematic diagram of the rear view structure of a high-temperature and high-pressure water environment comprehensive test platform with multi-environment coupling provided in an embodiment of the present application;

[0033] Figure 3 A schematic diagram of the structure of a heat dissipation mechanism in a multi-environment coupled high-temperature and high-pressure water environment comprehensive test platform provided in an embodiment of the present application;

[0034] Figure 4 A schematic diagram of the structure of the lower pulse mechanism in a high-temperature and high-pressure water environment comprehensive test platform with multi-environment coupling provided in an embodiment of the present application;

[0035] Figure 5 for Figure 4 Schematic diagram of the local enlarged structure of area A in the middle;

[0036] Figure 6 for Figure 4 Schematic diagram of the local enlarged structure of area B in the middle;

[0037] Figure 7 A schematic diagram of the installation structure of a magnetic card block in a multi-environment coupled high-temperature and high-pressure water environment comprehensive test platform provided in an embodiment of the present application;

[0038] Figure 8 A schematic diagram of the structure of the upper pulse mechanism in a multi-environment coupled high-temperature and high-pressure water environment comprehensive test platform provided in an embodiment of the present application;

[0039] Figure 9 A top view of a reactor cover in a multi-environment coupled high-temperature and high-pressure water environment comprehensive testing platform provided in an embodiment of the present application;

[0040] Figure 10 for Figure 9 Schematic diagram of the cross-sectional structure of the CC;

[0041] Figure 11 for Figure 10 Schematic diagram of the locally enlarged structure of area D in the middle.

[0042] Numbers in the figure:

[0043] 1. Frame;

[0044] 2. Test kettle; 21. Kettle body; 22. Partition plate; 23. Water outlet pipe; 24. Water inlet pipe; 25. Specimen fixing plate; 26. Test tube; 27. Kettle cover; 28. Support ring;

[0045] 3. Lower pulse mechanism; 31. Mounting port; 32. Guide tube; 33. Water inlet channel; 34. First swing plate; 35. First baffle; 36. Transmission chamber; 37. Rotating chamber; 38. Fixed shaft; 39. Motor; 310. Main rod; 311. Transmission rod; 312. Drive column; 313. Piston; 314. Slot; 315. Storage slot; 316. First spring; 317. Magnetic block; 318. First electromagnet; 319. Polygonal plate; 320. Second mounting slot; 321. Second swing plate; 322. Second baffle; 323. Fan blade; 324. Spiral groove; 325. Guide block; 326. End rod;

[0046] 4. Lifting mechanism; 41. Door-shaped plate; 42. First slide rail; 43. Base plate; 44. Telescopic member; 45. Reinforcement plate;

[0047] 5. Recording mechanism; 51. Second slide rail; 52. Industrial robotic arm; 53. Camera;

[0048] 6. Water circulation mechanism; 61. Heating kettle; 62. First water pump; 63. Circulation pipe; 64. Three-way valve;

[0049] 7. Upper pulse mechanism; 71. First installation groove; 72. Sealed cylinder; 73. Second electromagnet; 74. Driving shaft; 75. Installation cylinder; 76. First plain bearing; 77. Second spring; 78. Vibration magnet; 79. Inner magnet; 710. Second plain bearing; 711. Driven gear ring; 712. Outer magnet; 713. Double-sided rack; 714. Pulling groove; 715. Pulling ring; 716. Support plate; 717. Liquid passage; 718. Third swing plate; 719. Third baffle

[0050] 8. Heat dissipation mechanism; 81. Air intake fan; 82. Air outlet passage; 83. Air supply fan; 84. Serpentine pipe; 85. Valve; 86. Connecting pipe; 87. Second water pump Specific embodiments

[0051] The present invention will be further described in detail below with reference to the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the relevant invention, rather than limiting the invention. In addition, it should be noted that for the convenience of description, only the parts related to the invention are shown in the drawings.

[0052] It should be noted that, without conflict, the embodiments in the present invention and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the drawings and embodiments.

[0053] Please refer to Figures 1 to 11 , an embodiment of the present invention provides a comprehensive test platform for high-temperature and high-pressure water environment with multi-environment coupling, including:

[0054] Test kettle 2, including kettle body 21 and kettle cover 27. Inside the kettle body 21, a U-shaped test tube 2, including an inlet vertical section, a horizontal section and an outlet vertical section, is provided. As shown in Figure 4 and Figure 5 , after the external high-temperature water enters the inside of the kettle body 21, it will pass through the test tube 26 and then be discharged. In addition to this part of the flowing high-temperature water, heat exchange water is also provided inside the kettle body 21. In addition, a vertical partition plate 22 is provided at the bottom of the kettle body 21. An inlet pipe 24 is provided on one side of the bottom of the kettle body 21 corresponding to the partition plate 22, and an outlet pipe 23 is provided on the other side. In addition, the number of test tubes 26 can be set to multiple. For the control test, a number of specimen fixing plates 25 are provided in the vertical direction to fix the test tubes 26. A support ring 28 is provided on the inner wall of the bottom of the kettle body 21 to cooperate with the partition plate 22 to support the lowermost specimen fixing plate 25, realizing the preliminary support of the specimen fixing plate 25 and the test tube 26. Then, a pressing rod is provided at the bottom of the kettle cover 27 to press down the uppermost specimen fixing plate 25, finally realizing the stability of the specimen fixing plate 25 and the test tube 26.

[0055] The upper pulse mechanism 7 includes a drive shaft 74 that passes through the kettle cover 27. A support plate 716 is provided at the bottom end of the drive shaft 74. The support plate 716 is located below the horizontal section. A one-way piece is provided at the middle of the support plate 716 corresponding to the horizontal section. The one-way piece restricts the flow of liquid from the top to the bottom. The upper pulse mechanism 7 also includes a first drive unit for driving the drive shaft 74 to reciprocate in the vertical direction. Figure 10 and Figure 11 As shown, optionally, the one-way member is a one-way valve. Preferably, the one-way member includes a liquid passage 717 provided in the middle of the support plate 716, and a third swing plate 718 is rotatably installed on one side of the liquid passage 717, and a third baffle 719 is provided on the other side. When the support plate 716 moves upward, the third baffle 719 supports the third swing plate 718, and the third swing plate 718 blocks the liquid passage 717 to achieve the purpose of one-way liquid passage. Then, when the support plate 716 moves upward, the one-way member and the support plate 716 push the heat exchange water to move upward, and the water hits the horizontal section to achieve the purpose of simulated vibration. When the support plate 716 moves downward, the water will pass through the one-way member to reduce the resistance of the support plate 716 to the downward movement.

[0056] The lower pulse mechanism 3 includes a guide pipe 32 that passes through the bottom of the kettle body 21 and is connected to the vertical section of the water inlet. A piston 313 is provided at the bottom of the guide pipe 32, a water inlet channel 33 is provided at the top of the guide pipe 32, and a second driving part is provided at the bottom of the guide pipe 32. The second driving part is used to drive the piston 313 to reciprocate in the vertical direction inside the guide pipe 32; wherein, as Figure 4 As shown, a plurality of mounting ports 31 are provided at the bottom of the kettle body 21, each mounting port 31 corresponding to the vertical water inlet end of a test tube 26, and a guide tube 32 is sealed and installed through a flange plate passing through the mounting port 31, and the remaining unused mounting ports 31 are sealed by flange covers. The upward movement of the piston 313 pushes the high-temperature water in the guide tube 32 to move upward into the vertical water inlet section, and then impacts the horizontal section and the bend connecting the two, thereby achieving the purpose of simulating high-temperature water impact, and facilitating the study of the friction between the high-temperature water flow and the micro-motion of the inner wall of the test tube 26.

[0057] like Figure 1 As shown, the test kettle 2 is installed on the frame 1, and a avoidance groove is set at the position of the frame 1 corresponding to the installation opening 31 to facilitate the installation of the lower pulse mechanism 3. Optionally, as shown in FIG. Figure 5 As shown, a rotatable first swing plate 34 is provided at the bottom of the water inlet channel 33, and a first baffle 35 is provided at the outer edge of the top of the water inlet channel 33. When the piston 313 moves upward, the first baffle 35 limits the first swing plate 34 from swinging outward, thereby blocking the water inlet channel 33 and increasing the impact force of the water. After the pulse ends, as the piston 313 retracts downward, it will drive the first swing plate 34 to swing inward, which will not interfere with the entry of water.

[0058] In some embodiments, the test platform also includes a lifting mechanism 4, which includes a door-shaped plate 41 arranged above the test kettle 2. A telescopic part 44 is provided on the inner top wall of the door-shaped plate 41 at a position corresponding to the test kettle 2. One end of the telescopic part 44 is connected to the kettle cover 27. The drive shaft 74 is set into two groups and is located on both sides of the horizontal section respectively. The two groups of drive shafts 74 are staggered.

[0059] like Figure 8 and Figure 9 As shown, the staggered drive shafts 74 are provided with support plates 716 at the bottom thereof, all of which are located below the test tubes 26. When the telescopic member 44 lifts the kettle cover 27 upward, the staggered support plates 716 drive the test tubes 26 to move upward, thereby achieving the purpose of synchronously lifting each test tube 26, facilitating further inspection and research of the test tubes 26 after cooling. The staggered drive shafts 74 can also limit the test tubes 26, thereby maintaining the stability of the test tubes 26. In addition, the inner top wall of the door panel 41 is provided with two first slide rails 42 arranged in parallel, and the two first slide rails 42 are each provided with two sliding blocks. A base plate 43 is installed at the bottom of the four sliding blocks, and four telescopic parts 44 are provided at the bottom of the base plate 43. The sliding blocks and the telescopic parts 44 are arranged symmetrically with respect to the center to ensure the stability of the installation of the telescopic parts 44. The movement of the sliding blocks along the first slide rail 42 can drive the movement of the kettle cover 27 and the test tube 26, which is convenient for adjusting the position of the test tube 26 and facilitating manual removal; further, the shell of the telescopic part 44 is connected to the base plate 43, and the contraction body is connected to the kettle cover 27. A reinforcing plate 45 is also provided through the shell of the telescopic part 44 to improve the stability of the telescopic part 44. Optionally, the telescopic part 44 is a hydraulic telescopic cylinder.

[0060] In some embodiments, the upper pulse mechanism 7 further includes a third driving unit, which is used to drive the driving shaft 74 to rotate. Figure 10 As shown, by rotating the drive shaft 74, the support plate 716 can be driven to rotate so that the support plate 716 is no longer below the horizontal section. At this time, the test tube 26 can be removed for the next step of research and testing.

[0061] In some embodiments, the first driving part includes a sealing cylinder 72 connected to the kettle cover 27, a mounting column 75 is provided at the top of the driving shaft 74, the outer diameter of the mounting column 75 is larger than the outer diameter of the driving shaft 74, a vibration magnet 78 is provided at the top of the mounting column 75, and a second electromagnet 73 is provided at the top of the sealing cylinder 72; Figure 10 and Figure 11As shown, a positive current is passed into the second electromagnet 73, and the second electromagnet 73 generates magnetism, attracting the vibrating magnet 78, driving the mounting column 75 and the drive shaft 74 to move upward, and the current passed into the second electromagnet 73 is switched to a reverse current, and the magnetic pole of the second electromagnet 73 is reversed, repelling the vibrating magnet 78, pushing the mounting column 75 and the drive shaft 74 to move downward, and so on and so forth, achieving the purpose of reciprocating up and down movement of the drive shaft 74 and the support plate 716. In addition, the heat exchange water inside the kettle body 21 will not overflow due to the separation by the sealing cylinder 72, which not only ensures stable drive but also avoids the situation where the sealing performance is reduced.

[0062] The third driving part includes a plurality of inner magnets 79 arranged around the side surface of the mounting column 75, a driven gear ring 711 is sleeved on the outside of the sealing cylinder 72, and a plurality of outer magnets 712 are evenly arranged on the inner wall of the driven gear ring 711. The kettle cover 27 is located between the two sets of drive shafts 74 and is further provided with a double-sided rack 713, which is meshed and driven by each driven gear ring 711; Figure 9 、 Figure 10 and Figure 11 As shown, by pulling the double-sided rack 713, all the driven gear rings 711 are driven to rotate. Since the adjacent end faces of the inner magnet 79 and the outer magnet 712 are opposite poles, the corresponding inner magnet 79 and outer magnet 712 will attract each other. Therefore, when the driven gear ring 711 rotates, the attraction between the inner magnet 79 and the outer magnet 712 will drive the rotation of the mounting column 75, thereby achieving the purpose of rotating the drive shaft 74. Since the two groups of drive shafts 74 are respectively on both sides of the double-sided rack 713, they will drive the two groups of drive shafts 74 to rotate synchronously in opposite directions, thereby achieving the purpose of the support plate 716 leaving the bottom of the horizontal section.

[0063] like Figure 9 、 Figure 10 and Figure 11As shown, a first mounting groove 71 is provided at the top of the kettle cover 27, and each sealing cylinder 72 and related structures are arranged inside the first mounting groove 71. Drawing grooves 714 for accommodating the double-sided rack 713 are provided at both ends of the first mounting groove 71. A pull ring 715 is installed at one end of the double-sided rack 713, and the double-sided rack 713 is restricted by the drawing groove 714 to ensure the stability of the double-sided rack 713. By pulling the pull ring 715, the reciprocating movement of the double-sided rack 713 can be achieved; optionally, a second spring 77 is arranged around the bottom end of the mounting column 75, and the bottom end of each second spring 77 is provided with a first plane bearing 76 connected to the bottom of the first mounting groove 71. 6 and the second spring 77, on the one hand, can reduce the power input to the second electromagnet 73, only input reverse current into the second electromagnet 73, the mounting column 75 moves downward and compresses the second spring 77, after the current is cut off, the mounting column 75 returns to its original position under the action of the second spring 77, and the reciprocating movement can also achieve the purpose of vibration. On the other hand, the first plane bearing 76 assists the mounting column 75 to ensure that when the mounting column 75 rotates, it will not cause the second spring 77 to bend or twist, thereby ensuring the continuous operation of the second spring 77. In addition, a second plane bearing 710 is provided at the bottom of the driven gear ring 711 to improve the rotation stability of the driven gear ring 711.

[0064] In some embodiments, the second driving unit includes a transmission chamber 36 disposed at the bottom end of the guide tube 32. A rotating chamber 37 is disposed within the transmission chamber 36 and communicates with the interior of the guide tube 32. A fixed shaft 38 is disposed in the middle of the rotating chamber 37. A motor 39 is disposed on the outer wall of the transmission chamber 36 to drive the fixed shaft 38 to rotate.

[0065] A main rod 310 is mounted on the end of the fixed shaft 38. The main rod 310 is rotatably connected to the transmission rod 311 at the end away from the fixed shaft 38. The transmission rod 311 is rotatably connected to the end of the main rod 310 away from the end of the main rod 310. A driving column 312 is provided at the end of the end rod 326 away from the transmission rod 311. The top of the driving column 312 is connected to the piston 313.

[0066] like Figure 4 As shown, the fixed shaft 38 is driven to rotate by the motor 39, thereby driving the main rod 310 to rotate. Since the end rod 326 and the driving column 312 are connected to the piston 313, they are restricted by the guide tube 32. The end rod 326 and the driving column 312 can only move back and forth up and down, and one end of the transmission rod 311 is connected to the main rod 310 and the other end is connected to the end rod 326, thereby achieving the purpose of driving the piston 313 to move back and forth up and down.

[0067] In some embodiments, the lower pulse mechanism 3 further comprises:

[0068] A locking portion, used to separate the driving column 312 and the piston 313 and lock the piston 313, as well as to lock the driving column 312 and the piston 313;

[0069] The fluid acceleration unit includes a spiral groove 324 formed on the outer surface of the drive column 312. A guide block 325 is provided at the bottom end of the piston 313, which mates with the spiral groove 324. The bottom end of the drive column 312 is rotatably connected to the top end of the end rod 326. The top end of the drive column 312 is evenly provided with a plurality of rotatable blades 323 around the axis of the drive column 312. The axis of each rotating shaft extends perpendicular to the vertical direction. The bottom end of each blade 323 is provided with a second baffle 322 that can abut against the drive column 312.

[0070] like Figure 6 and Figure 7 As shown, a polygonal plate 319 is installed at the top of the driving column 312, and a second mounting groove 320 is set on each side of the polygonal plate 319. A fan blade 323 is installed in the second mounting groove 320 through a second swing plate 321. The fan blade 323 and the second swing plate 321 can both swing. The second baffle 322 can be installed at the bottom of the second swing plate 321. When the locking part separates the driving column 312 and the piston 313 and locks the piston 313, the driving column 312 will continue to move upward, and the spiral groove 323 on its surface The driving column 312 is restricted by the guide block 325, so that the driving column 312 rotates upward. During the upward movement, the fan blades 323 are restricted by the second baffle 322 and cannot swing downward. Instead, they can only rotate together, driving the high-temperature water upward to achieve the purpose of accelerating the high-temperature water. When the driving column 312 rotates downward, the fan blades 323 will swing upward without affecting the original flow rate of the high-temperature water. By increasing the flow rate of the high-temperature water, the micro-friction between the water flow and the inner wall of the pipe at different flow rates is simulated in a real heat transfer pipe.

[0071] In some embodiments, the locking portion includes a first electromagnet 318 disposed on the outer wall of the guide tube 32. A receiving groove 315 and a locking groove 314 are respectively disposed at corresponding positions in the middle of the piston 313 and the top of the driving column 312. A plurality of first springs 316 are disposed on the inner wall of the receiving groove 315 away from the locking groove 314. A magnetic block 317 is mounted on the other end of each first spring 316.

[0072] like Figure 7 As shown, this is the locking state between the driving column 312 and the piston 313. The first spring 316 inside the receiving groove 315 pushes the magnetic block 317 to be stuck in the groove 314, thereby realizing the locking between the driving column 312 and the piston 313; if current is passed into the first electromagnet 318, the first electromagnet 318 generates a magnetic force to attract the magnetic block 317, and pulls the magnetic block 317 from the groove 314 into the receiving groove 315, thereby losing the restriction of the magnetic block 317, and separating the driving column 312 and the piston 313. On the basis of the first electromagnet 318 attracting the magnetic block 317, the piston 313 is locked, thereby meeting the purpose of separating the driving column 312 and the piston 313 and locking the piston 313.

[0073] In some embodiments, the test platform further includes a water circulation mechanism 6, which includes a heating kettle 61 provided on one side of the test kettle 2, a water inlet pipe 24 provided between the heating kettle 61 and the test kettle 2, a first water pump 62 provided on the water inlet pipe 24, a circulation pipe 63 provided on the top of the heating kettle 61, a three-way valve 64 provided at the other end of the circulation pipe 63, and one opening of the three-way valve 64 connected to the water outlet pipe 23 of the test kettle 2;

[0074] like Figure 2 and Figure 3 As shown, high-temperature water is provided by the heating kettle 61, and the high-temperature water enters the water inlet pipe 24 through the first water pump 62, is blocked by the partition plate 22, enters the guide pipe 32 through the water inlet channel 33, and then enters the test pipe 26, and finally flows into the other side of the partition plate 22 and is discharged from the water outlet pipe 23. The high-temperature water passes through the three-way valve 64 and the circulation pipe 63 and then flows back to the interior of the heating kettle 61, realizing the recycling of high-temperature water. When it needs to be drained, it is only necessary to adjust the three-way valve 64 so that the high-temperature water that should flow into the circulation pipe 63 is discharged from the other opening.

[0075] In some embodiments, the test platform further includes a heat dissipation mechanism 8, which includes:

[0076] The air collecting fan 81 is provided on one side above the kettle body 21, and an air outlet channel 82 is installed at the end of the air collecting fan 81 away from the kettle body 21;

[0077] The air supply fan 83 is provided on the side of the kettle body 21 away from the air collection fan 81, and the axis of the air supply fan 83 coincides with the axis of the air collection fan 81;

[0078] The slow heating section includes a serpentine pipe 84 provided between the air supply fan 83 and the kettle body 21. The heat exchange plane formed by the serpentine pipe 84 has a central normal line, which coincides with the axis of the air collection fan 81. Both ends of the serpentine pipe 84 are connected to the heating kettle 61 through connecting pipes 86. A second water pump 87 is provided on one connecting pipe 86. Optionally, the connecting pipe 86 and the serpentine pipe 84 are connected by a valve 85.

[0079] like Figure 3 As shown, after the lifting mechanism 4 lifts the kettle cover 27 and the test tube 26, the air collection fan 81 and the air supply fan 83 are started to allow air to pass through the test tube 26 to cool it down. On this basis, the second water pump 87 of the slow heating section is started to fill the serpentine pipe 84 with high-temperature water to increase the air flow temperature. After a period of time, the valve 85 is closed to ensure that the temperature is gradually reduced to avoid sudden cooling and cracking caused by direct contact of the test tube 26 with high-temperature water.

[0080] In some embodiments, a recording mechanism 5 is provided on one side wall of the door panel 41. The recording mechanism 5 includes a second slide rail 51 provided on the inner side wall of the door panel 41. An industrial robot arm 52 is installed on the slider of the second slide rail 51. A camera 53 is installed on the execution end of the industrial robot arm 52. Figure 2 As shown, the slider moves along the second slide rail 51, driving the industrial robot arm 52 to move up and down, and then operating the execution end of the industrial robot arm 52 to target the test tube 26, so that the camera 53 can capture the status of the test tube 26 in a timely and accurate manner, making the obtained image data more accurate.

[0081] In this specification, the terms "connect," "install," and "fix" should be understood broadly. For example, "connect" can refer to a fixed connection, a detachable connection, or an integral connection; it can refer to a direct connection or an indirect connection through an intermediary. Those skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances.

[0082] Throughout this specification, terms such as "one embodiment" or "some embodiments" mean that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present application. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0083] The above are merely preferred embodiments of the present application and are not intended to limit the present application. Those skilled in the art will readily appreciate that various modifications and variations are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present application shall be included within the scope of protection of the present application.

Claims

1. A high-temperature and high-pressure water environment comprehensive testing platform with multi-environment coupling, characterized by: include: The test kettle (2) comprises a kettle body (21) and a kettle cover (27); a shaped test tube (26) is provided inside the kettle body (21); the test tube (26) comprises a water inlet vertical section, a horizontal section and a water outlet vertical section; The upper pulse mechanism (7) includes a drive shaft (74) passing through the kettle cover (27), a support plate (716) is provided at the bottom end of the drive shaft (74), the support plate (716) is located below the horizontal section, a one-way piece is provided at the middle of the support plate (716) at a position corresponding to the horizontal section, and the one-way piece restricts the flow of liquid from the top to the bottom. The upper pulse mechanism (7) also includes a first drive unit, which is used to drive the drive shaft (74) to reciprocate in the vertical direction; The lower pulse mechanism (3) comprises a guide pipe (32) that passes through the bottom of the kettle body (21) and is connected to the water inlet vertical section, a piston (313) is provided at the bottom of the guide pipe (32), a water inlet channel (33) is provided at the top of the guide pipe (32), and a second driving part is provided at the bottom end of the guide pipe (32), and the second driving part is used to drive the piston (313) to move back and forth in the guide pipe (32) along the vertical direction.

2. The multi-environment coupled high-temperature and high-pressure water environment comprehensive testing platform according to claim 1 is characterized in that: The test platform further comprises a lifting mechanism (4), the lifting mechanism (4) comprising a door-shaped plate (41) arranged above the test kettle (2), a telescopic member (44) being provided at a position of the inner top wall of the door-shaped plate (41) corresponding to the position of the test kettle (2), one end of the telescopic member (44) being connected to the kettle cover (27), the drive shafts (74) being arranged in two groups and respectively located on both sides of the horizontal section, and the two groups of the drive shafts (74) being staggered.

3. The multi-environment coupled high-temperature and high-pressure water environment comprehensive testing platform according to claim 2 is characterized in that: The upper pulse mechanism (7) further includes a third driving unit, and the third driving unit is used to drive the driving shaft (74) to rotate.

4. The multi-environment coupled high-temperature and high-pressure water environment comprehensive testing platform according to claim 3 is characterized in that: The first driving part comprises a sealing cylinder (72) connected to the kettle cover (27); a mounting column (75) is provided at the top end of the driving shaft (74); the outer diameter of the mounting column (75) is larger than the outer diameter of the driving shaft (74); a vibrating magnet (78) is provided at the top end of the mounting column (75); and a second electromagnet (73) is provided at the top end of the sealing cylinder (72); The third driving part includes a plurality of internal magnets (79) arranged around the side surface of the mounting column (75); the sealing cylinder (72) is provided with a driven gear ring (711) on the outside; the inner wall of the driven gear ring (711) is evenly provided with a plurality of external magnets (712); the kettle cover (27) is located between the two groups of driving shafts (74) and is also provided with a double-sided rack (713); the double-sided rack (713) is meshed and transmission-connected with each of the driven gear rings (711).

5. The multi-environment coupled high-temperature and high-pressure water environment comprehensive testing platform according to claim 1 is characterized in that: The second driving part includes a transmission chamber (36) provided at the bottom end of the guide tube (32), a rotating chamber (37) communicating with the interior of the guide tube (32) is provided inside the transmission chamber (36), a fixed shaft (38) is provided in the middle of the rotating chamber (37), and a motor (39) for driving the fixed shaft (38) to rotate is provided on the outer wall of the transmission chamber (36); The end of the fixed shaft (38) is fitted with a main rod (310), the end of the main rod (310) away from the fixed shaft (38) is rotatably connected to a transmission rod (311), the end of the transmission rod (311) away from the end of the main rod (310) is rotatably connected to an end rod (326), the end of the end rod (326) away from the transmission rod (311) is provided with a driving column (312), and the top of the driving column (312) is connected to the piston (313).

6. The multi-environment coupled high-temperature and high-pressure water environment comprehensive testing platform according to claim 5 is characterized in that: The lower pulse mechanism (3) further comprises: A locking portion, used for separating the driving column (312) and the piston (313) and locking the piston (313), as well as locking the driving column (312) and the piston (313); The liquid flow acceleration part includes a spiral groove (324) provided on the outer surface of the driving column (312), a guide block (325) that fits with the spiral groove (324) is provided at the bottom end of the piston (313), the bottom end of the driving column (312) and the top end of the end rod (326) are rotatably connected, and a plurality of rotatable blades (323) are evenly arranged at the top end of the driving column (312) around the axis of the driving column (312), and the axis extension direction of each rotating shaft is perpendicular to the vertical direction. The bottom end of each blade (323) is provided with a second baffle (322) that can abut against the driving column (312).

7. The multi-environment coupled high-temperature and high-pressure water environment comprehensive testing platform according to claim 6 is characterized in that: The locking portion includes a first electromagnet (318) arranged on the outer wall of the guide tube (32); a receiving groove (315) and a clamping groove (314) are respectively provided at corresponding positions in the middle of the piston (313) and the top of the driving column (312); a plurality of first springs (316) are provided on the inner wall of the receiving groove (315) away from the clamping groove (314); and a magnetic clamping block (317) is installed at the other end of each first spring (316).

8. The multi-environment coupled high-temperature and high-pressure water environment comprehensive testing platform according to claim 2 is characterized in that: The test platform further comprises a water circulation mechanism (6), wherein the water circulation mechanism (6) comprises a heating kettle (61) provided on one side of the test kettle (2), a water inlet pipe (24) is provided between the heating kettle (61) and the test kettle (2), a first water pump (62) is provided on the water inlet pipe (24), a circulation pipe (63) is further provided on the top of the heating kettle (61), a three-way valve (64) is provided at the other end of the circulation pipe (63), and one opening of the three-way valve (64) is connected to the water outlet pipe (23) of the test kettle (2).

9. The multi-environment coupled high-temperature and high-pressure water environment comprehensive testing platform according to claim 8, characterized in that: The test platform further comprises a heat dissipation mechanism (8), wherein the heat dissipation mechanism (8) comprises: An air collecting fan (81) is provided on one side above the kettle body (21), and an air outlet channel (82) is installed at the end of the air collecting fan (81) away from the kettle body (21); An air supply fan (83) is provided on the side of the kettle body (21) away from the air collecting fan (81), and the axis of the air supply fan (83) coincides with the axis of the air collecting fan (81); The slow heating part includes a serpentine pipe (84) arranged between the air supply fan (83) and the kettle body (21). The heat exchange plane formed by the serpentine pipe (84) has a center normal, and the center normal coincides with the axis of the air collection fan (81). Both ends of the serpentine pipe (84) are connected to the heating kettle (61) through connecting pipes (86), and a second water pump (87) is provided on one of the connecting pipes (86).

10. The multi-environment coupled high-temperature and high-pressure water environment comprehensive testing platform according to claim 2, characterized in that: A recording mechanism (5) is provided on an inner side wall of the door-shaped plate (41), and the recording mechanism (5) comprises a second slide rail (51) provided on the inner side wall of the door-shaped plate (41), an industrial robot arm (52) is installed on a slider of the second slide rail (51), and a camera (53) is installed on an execution end of the industrial robot arm (52).

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