Nondestructive testing device for internal structure of containment vessel of nuclear power station

Abstract

The invention relates to the technical field of containment detection, in particular to a nuclear power station containment internal structure nondestructive testing device which comprises a detection mechanism and an energy supply mechanism, the energy supply mechanism is fixedly connected to the front side of the detection mechanism, and the detection mechanism comprises a moving assembly, a positioning assembly, a detection assembly, a magnetization assembly, a storage assembly and a recovery assembly. The positioning assembly is arranged on the inner side of the moving assembly, the detection assembly is arranged on the rear side of the positioning assembly, and the magnetization assembly is arranged on the rear side of the detection assembly. The nuclear power plant containment internal structure nondestructive testing device provided by the invention is provided with a dry and wet combined structure when magnetic chip nondestructive testing is performed on the nuclear power plant containment, so that smooth parts and rough parts of the containment can be respectively detected, the flexibility during detection is improved, and the nuclear power plant containment internal structure nondestructive testing device is provided with a wall-climbing robot energy recycling structure, so that the detection efficiency is improved. And the endurance time of the wall-climbing robot can be prolonged, and the energy-saving performance of the wall-climbing robot during use is improved.

Description

Technical Field

[0001] The invention relates to the technical field of containment detection, and in particular to a nondestructive detection device for the internal structure of a containment of a nuclear power plant. Background Art

[0002] As we all know, during the operation of nuclear power plants, the integrity of the internal structure of the containment is crucial to nuclear safety. There are steel linings, prestressed concrete and other structures inside the containment. Affected by factors such as long-term radiation, temperature changes, and stress, corrosion and deformation may occur. Traditional detection methods have limitations and are difficult to conduct comprehensive and accurate assessments. Non-destructive testing devices for the internal structure of nuclear power plant containment have emerged. Through the combination of multiple sensors and advanced technologies, they can non-destructively detect the internal structural status and ensure the safe and stable operation of nuclear power plants.

[0003] After searching, a Chinese patent discloses a method and a device for detecting bulging of the steel lining of the containment dome of a nuclear power plant. The application publication number is: CN112433002A. The patent discloses a method and a device for detecting bulging of the steel lining of the containment dome of a nuclear power plant. The detection method comprises the following steps: 1. controlling a drone equipped with an ultrasonic steel lining bulge detection module to move zone by zone within the boundary of the steel lining of the containment dome. The ultrasonic steel lining bulge detection module is provided with a single-chip microcomputer, an ultrasonic detection module and an inkjet module. The first bulge boundary point is determined by controlling the ultrasonic detection module through the single-chip microcomputer, and the inkjet module is controlled by the single-chip microcomputer to inkjet mark; 2. controlling a drone equipped with an ultrasonic steel lining bulge detection module to move near the first bulge boundary point, determining the next bulge boundary point and controlling the inkjet module to inkjet mark through the single-chip microcomputer; and 3. repeating step 2 until all the bulge boundary points of the steel lining of the containment dome are determined and the bulge boundary is determined. The method for detecting bulging of the steel lining of the containment dome of a nuclear power plant of this invention solves the problem that bulging of the steel lining of the dome area cannot be detected during the overhaul of the nuclear power unit.

[0004] When inspecting the inside of a nuclear power plant containment vessel, a variety of different inspection equipment are used to detect damage to the containment vessel, including equipment that uses a magnetic chip wall-climbing drone to inspect damage inside the containment vessel. The problems with the prior art are: due to the lack of a dry and wet structure for non-destructive magnetic chip inspection of the nuclear power plant containment vessel, it is impossible to inspect the smooth and rough parts of the containment vessel separately, which reduces the flexibility of the inspection; and there is a lack of an energy recovery structure for the wall-climbing robot, which makes it impossible to extend the battery life of the wall-climbing robot, reducing the energy efficiency of the wall-climbing robot when in use. Summary of the invention

[0005] 1. Technical issues to be solved

[0006] In view of the deficiencies in the prior art, the present invention provides a nondestructive testing device for the internal structure of a nuclear power plant containment vessel, which has a dry and wet structure for performing magnetic chip nondestructive testing on the nuclear power plant containment vessel, so that the smooth and rough parts of the containment vessel can be tested separately, thereby improving the flexibility during testing, and has an energy recovery and utilization structure for a wall-climbing robot, which can extend the battery life of the wall-climbing robot and improve the energy-saving advantage of the wall-climbing robot when in use.

[0007] (II) Technical solution

[0008] The above technical objectives of the present invention are achieved through the following technical solutions: A nondestructive testing device for the internal structure of a nuclear power plant containment vessel, comprising a testing mechanism and an energy supply mechanism, wherein the energy supply mechanism is fixedly connected to the front side of the testing mechanism, the testing mechanism comprises a moving component, a positioning component, a testing component, a magnetizing component, a storage component and a recovery component, the positioning component is arranged on the inner side of the moving component, the testing component is arranged on the rear side of the positioning component, the magnetizing component is arranged on the rear side of the testing component, the storage component is arranged on the inner side of the positioning component, and the recovery component is arranged at the bottom of the storage component, the energy supply mechanism comprises a conveying component, an energy storage component and a transmission component, the conveying component is arranged at the top of the front side of the positioning component, the energy storage component is arranged at the bottom of the front side of the positioning component, the transmission component is arranged at the top of the energy storage component, and the top of the energy storage component is connected to the bottom of the conveying component.

[0009] By adopting the above technical scheme, through setting up a detection mechanism and an energy supply mechanism, the detection mechanism can perform non-destructive detection of magnetic chips on the internal structure of the nuclear power plant containment, and can detect whether the structure of the containment is damaged. The energy supply mechanism can recover the strong airflow generated by the movement of the detection mechanism when the detection mechanism moves, and use the strong airflow to generate additional electricity and provide air pressure for the magnetic chip injection of the detection mechanism.

[0010] The present invention is further configured as follows: the moving assembly includes a positioning plate, an electric crawler and a buffer belt, the two electric crawlers are respectively fixedly connected to the two sides of the positioning plate, and the buffer belt is sleeved on the surface of the electric crawler.

[0011] By adopting the above technical solution and setting a moving component, the positioning plate can cooperate with the electric track and the buffer belt. By limiting the electric track with the positioning plate, the electric track can drive the buffer belt to move back and forth, so that when it comes into contact with the inside of the nuclear power plant containment, it can drive the positioning plate to move and turn, thereby driving the detection mechanism as a whole and the energy supply mechanism as a whole to move inside the nuclear power plant containment.

[0012] The present invention is further configured as follows: the positioning assembly includes a drainage bin, an exhaust fan and an adsorption plate, the drainage bin is fixedly connected to the inner side of the positioning plate, the exhaust fan is connected to the inner side of the drainage bin, and the adsorption plate is connected to the bottom of the exhaust fan.

[0013] By adopting the above technical solution and setting a positioning component, the drainage bin can cooperate with the exhaust fan and the adsorption plate. The air at the adsorption plate can be pumped to the drainage bin by the exhaust fan, so that the adsorption plate can generate negative pressure and adsorb on the inside of the nuclear power plant containment, thereby limiting the overall structure of the detection mechanism. The drainage bin can concentrate the air and transport it to the energy supply mechanism.

[0014] The present invention is further configured as follows: the detection component includes an adjusting hydraulic rod, an electromagnetic detector and a magnetic chip detection rod, the adjusting hydraulic rod is fixedly connected to the rear side of the drainage bin, the electromagnetic detector is fixedly connected to the rear side of the adjusting hydraulic rod, and the magnetic chip detection rod is fixedly connected to the bottom of the electromagnetic detector.

[0015] By adopting the above technical solution, through setting up the detection component, the hydraulic rod can be adjusted to cooperate with the electromagnetic detector and the magnetic chip detection rod. By adjusting the position of the electromagnetic detector by adjusting the hydraulic rod, the position of the magnetic chip detection rod can be adjusted, so that the magnetic chip detection rod can be corrected to the area where magnetic chip detection is required, thereby increasing the stability during magnetic chip detection.

[0016] The present invention is further configured as follows: the magnetization component includes a magnetic chip nozzle, a dry magnetic chip tank and a wet magnetic chip tank, the two magnetic chip nozzles are fixedly connected to the left side and the right side of the rear side of the electromagnetic detector respectively, the dry magnetic chip tank is connected to the right side of the top of the magnetic chip nozzle, and the wet magnetic chip tank is connected to the left side of the top of the magnetic chip nozzle.

[0017] By adopting the above technical solution and setting up a magnetizing component, the magnetic chip nozzle can cooperate with a dry magnetic chip tank and a wet magnetic chip tank. The dry magnetic chip tank can be used to store dry magnetic chips, while the wet magnetic chip tank can be used to store wet magnetic chips. This allows the magnetic chip nozzle to transport different types of magnetic chips according to the roughness of the inner wall of the current nuclear power plant containment vessel. Dry powder magnetic powder is suitable for rough surfaces and is easy to operate and clean. Wet powder magnetic powder is suitable for smooth surfaces and has good suspension properties, which can better display subtle defects.

[0018] The present invention is further configured as follows: the storage component includes a dry magnetic chips bin, a wet magnetic chips bin and an interception net, the card is connected to the right side of the inner side of the drainage bin, the wet magnetic chips bin is connected to the left side of the inner side of the drainage bin, and the two interception nets are respectively connected to the top of the front side of the dry magnetic chips bin and the top of the front side of the wet magnetic chips bin.

[0019] By adopting the above technical solution and setting up a storage component, the dry magnetic chips bin can cooperate with the wet magnetic chips bin and the interception net. The dry magnetic chips bin can store dry magnetic chips, and the wet magnetic chips bin can store wet magnetic chips, thereby realizing the classified storage of magnetic chips recovery. The interception net can intercept the magnetic chips to prevent them from being discharged with the airflow.

[0020] The present invention is further configured as follows: the recycling component includes an adjustable electric rotating rod, an electromagnetic plate, a dry magnetic chip scraper and a wet magnetic chip scraper, the two adjustable electric rotating rods are respectively fixedly connected to the right side of the bottom of the dry magnetic chip bin and the left side of the bottom of the wet magnetic chip bin, the electromagnetic plate is fixedly connected to the output end of the bottom of the adjustable electric rotating rod, the dry magnetic chip scraper is clamped on the right side of the bottom of the adjustable electric rotating rod, and the wet magnetic chip scraper is clamped on the left side of the bottom of the adjustable electric rotating rod.

[0021] By adopting the above technical scheme, a recovery component is set up, and the electric rotating rod can be adjusted to cooperate with the electromagnetic plate, the dry magnetic chip scraper and the wet magnetic chip scraper. By adjusting the electric rotating rod to drive the electromagnetic plate to rotate, the inside of the nuclear power plant containment can be magnetized when the electromagnetic plate contacts the inside of the nuclear power plant containment, thereby increasing the uniformity of the magnetic chips when they are sprayed into the inside of the containment, so that the magnetic chips can show the damaged parts. The dry magnetic chip scraper can scrape the dry magnetic chips and can be sucked into the dry magnetic chip bin and stored by the negative pressure generated by the dry magnetic chip bin. The wet magnetic chip scraper can scrape the wet magnetic chips and can be sucked into the wet magnetic chip bin and stored by the negative pressure generated by the wet magnetic chip bin.

[0022] The present invention is further configured as follows: the conveying assembly includes a wet magnetic chips air supply pipe, a dry magnetic chips air supply pipe and an air compressor, the wet magnetic chips air supply pipe is fixedly connected to the left side of the top of the rear side of the drainage bin, the dry magnetic chips air supply pipe is fixedly connected to the right side of the top of the rear side of the drainage bin, the two air compressors are respectively connected to the rear side of the wet magnetic chips air supply pipe and the rear side of the dry magnetic chips air supply pipe, and the rear sides of the two air compressors are respectively connected to the front side of the wet magnetic chips tank and the front side of the dry magnetic chips tank.

[0023] By adopting the above technical scheme and setting up a conveying component, the wet magnetic chips air supply pipe can cooperate with the dry magnetic chips air supply pipe and the air compressor. The air can be respectively transported to the air compressor for compression through the wet magnetic chips air supply pipe and the dry magnetic chips air supply pipe. The air compressor can respectively transport the compressed air to the magnetic chips nozzles at the bottom of the dry magnetic chips tank and the magnetic chips nozzles at the bottom of the wet magnetic chips tank, thereby providing the required air pressure for the magnetic chips nozzles to spray the magnetic chips.

[0024] The present invention is further configured as follows: the energy storage assembly includes a limit plate, a micro generator and a battery, the limit plate is fixedly connected to the rear side of the drainage bin, the micro generator is clamped on the bottom of the limit plate, and the battery is fixedly connected to the output end of the rear side of the micro generator.

[0025] By adopting the above technical solution and setting up an energy storage component, the limit plate can cooperate with the micro generator and the battery. By limiting the micro generator and the battery through the limit plate, the battery can be charged when the micro generator generates electricity driven by the transmission component, thereby allowing the battery to provide additional electrical energy for the overall structure of the detection mechanism.

[0026] The present invention is further configured as follows: the transmission assembly includes a rotating plate, guide blades and a drainage spiral plate, the two rotating plates are respectively rotatably connected to the left side and the right side of the top of the limiting plate, the guide blades are welded to the inner side of the rotating plate, and the drainage spiral plate is welded to the bottom of the inner side of the rotating plate, and the tops of the two rotating plates are respectively connected to the bottom of the front side of the wet magnetic chips air supply pipe and the bottom of the front side of the dry magnetic chips air supply pipe.

[0027] By adopting the above technical solution and setting a transmission component, the rotating plate can cooperate with the guide blades and the drainage spiral plate. By limiting the guide blades and the drainage spiral plate through the rotating plate, the drainage spiral plate can be driven to rotate when the guide blades rotate with the flowing air, so that the drainage spiral plate can concentrate the air into the wet magnetic chips air supply pipe and the dry magnetic chips air supply pipe, and the rotating plate can provide the kinetic energy required for power generation for the micro generator when rotating.

[0028] (III) Beneficial effects

[0029] Compared with the prior art, the present invention provides a nondestructive testing device for the internal structure of a nuclear power plant containment vessel, which has the following beneficial effects:

[0030] The nondestructive testing device for the internal structure of a nuclear power plant containment vessel comprises a detection mechanism, a moving component that can cooperate with a positioning component, a detection component, a magnetization component, a storage component and a recovery component, the moving component drives the positioning component to move, the positioning component can limit the moving component inside the nuclear power plant containment vessel by a negative pressure adsorption method, the detection component can adjust the orientation of the magnetization component in real time, calibrate the magnetization component, the magnetization component can blow magnetic chips to a desired detection location by air pressure delivered by an energy supply mechanism, so that the detection component can detect the nuclear power plant containment vessel coated with magnetic chips, the storage component can classify and store dry magnetic chips and wet magnetic chips, the recovery component can magnetize the inside of the nuclear power plant containment vessel, and can classify and recover dry magnetic chips and wet magnetic chips into the storage component, thereby improving the stability of the detection of magnetic chips in the nuclear power plant containment vessel;

[0031] The invention discloses a nondestructive testing device for the internal structure of a nuclear power plant containment vessel. By arranging an energy supply mechanism, a conveying component can cooperate with an energy storage component and a transmission component. By limiting the transmission component through the conveying component and the energy storage component, the transmission component can be driven to generate electricity when the transmission component rotates with the flowing air, thereby providing additional power support for the testing mechanism. The conveying component can pressurize the air conveyed by the transmission component and convey it to the testing mechanism, thereby providing the testing mechanism with the air pressure required for magnetic chip injection, thereby improving the energy saving when performing magnetic chip inspection on the inside of the nuclear power plant containment vessel. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0033] Figure 2 It is a structural schematic diagram of the detection mechanism in the present invention;

[0034] Figure 3 It is a schematic diagram of the structure of the moving component and the positioning component in the present invention;

[0035] Figure 4 It is a schematic diagram of the structure of the magnetization component and the detection component in the present invention;

[0036] Figure 5 It is a schematic diagram of the structure of the storage component and the recovery component in the present invention;

[0037] Figure 6 It is a structural schematic diagram of the energy supply mechanism in the present invention;

[0038] Figure 7 It is a structural schematic diagram of the conveying component in the present invention;

[0039] Figure 8 It is a structural schematic diagram of the energy storage component in the present invention;

[0040] Fig. 9 It is a structural schematic diagram of the transmission component in the present invention.

[0041] In the figure: 1. detection mechanism; 11. moving assembly; 111. positioning plate; 112. electric crawler; 113. buffer belt; 12. positioning assembly; 121. drainage bin; 122. exhaust fan; 123. adsorption plate; 13. detection assembly; 131. adjustment hydraulic rod; 132. electromagnetic detector; 133. magnetic chip detection rod; 14. magnetization assembly; 141. magnetic chip nozzle; 142. dry magnetic chip tank; 143. wet magnetic chip tank; 15. storage assembly; 151. dry magnetic chip bin; 152. wet magnetic chip bin Chip bin; 153, interception net; 16, recovery component; 161, adjustment electric rotating rod; 162, electromagnetic plate; 163, dry magnetic chip scraper; 164, wet magnetic chip scraper; 2, energy supply mechanism; 21, conveying component; 211, wet magnetic chip air supply pipe; 212, dry magnetic chip air supply pipe; 213, air compressor; 22, energy storage component; 221, limit plate; 222, micro generator; 223, battery; 23, transmission component; 231, rotating plate; 232, guide blade; 233, drainage spiral plate. DETAILED DESCRIPTION

[0042] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0043] Example 1

[0044] See also Figure 1-5 A nondestructive testing device for the internal structure of a nuclear power plant containment vessel comprises a testing mechanism 1, wherein the testing mechanism 1 comprises a moving component 11, a positioning component 12, a testing component 13, a magnetizing component 14, a storage component 15 and a recovery component 16, wherein the positioning component 12 is arranged on the inner side of the moving component 11, the testing component 13 is arranged on the rear side of the positioning component 12, the magnetizing component 14 is arranged on the rear side of the testing component 13, the storage component 15 is arranged on the inner side of the positioning component 12, and the recovery component 16 is arranged on the bottom of the storage component 15, wherein the testing mechanism 1 and the moving component 11 can cooperate with the positioning component 12, the testing component 13, the magnetizing component 14, the storage component 15 and the recovery component 16, and the moving component 11 drives the positioning component 11 to move. The component 12 is moved, the positioning component 12 can limit the moving component 11 inside the nuclear power plant containment by negative pressure adsorption, the detection component 13 can adjust the orientation of the magnetization component 14 in real time, calibrate the magnetization component 14, and the magnetization component 14 can blow the magnetic chips to the required detection location through the air pressure delivered by the energy supply mechanism 2, so that the detection component 13 can detect the nuclear power plant containment coated with magnetic chips, the storage component 15 can classify and store dry magnetic chips and wet magnetic chips, the recovery component 16 can magnetize the inside of the nuclear power plant containment, and can classify and recover the dry magnetic chips and wet magnetic chips into the storage component 15, thereby improving the stability of the detection of magnetic chips in the nuclear power plant containment.

[0045] Among them, the moving component 11 includes a positioning plate 111, an electric track 112 and a buffer belt 113. The two electric tracks 112 are fixedly connected to the two sides of the positioning plate 111 respectively, and the buffer belt 113 is sleeved on the surface of the electric track 112. By setting the moving component 11, the positioning plate 111 can cooperate with the electric track 112 and the buffer belt 113. The electric track 112 is limited by the positioning plate 111, so that the electric track 112 can drive the buffer belt 113 to reciprocate, so that when it contacts the inside of the nuclear power plant containment, it drives the positioning plate 111 to move and turn, so that the detection mechanism 1 as a whole and the energy supply mechanism 2 as a whole can be driven to move inside the nuclear power plant containment.

[0046] Among them, the positioning component 12 includes a drainage bin 121, an exhaust fan 122 and an adsorption plate 123. The drainage bin 121 is fixedly connected to the inner side of the positioning plate 111, the exhaust fan 122 is connected to the inner side of the drainage bin 121, and the adsorption plate 123 is connected to the bottom of the exhaust fan 122. By setting the positioning component 12, the drainage bin 121 can cooperate with the exhaust fan 122 and the adsorption plate 123. The air at the adsorption plate 123 is pumped to the drainage bin 121 through the exhaust fan 122, so that the adsorption plate 123 can generate negative pressure and be adsorbed on the inside of the nuclear power plant containment, thereby limiting the overall structure of the detection mechanism 1. The drainage bin 121 can centrally transport the air to the energy supply mechanism 2.

[0047] Among them, the detection component 13 includes an adjusting hydraulic rod 131, an electromagnetic detector 132 and a magnetic chip detection rod 133. The adjusting hydraulic rod 131 is fixedly connected to the rear side of the drainage bin 121, the electromagnetic detector 132 is fixedly connected to the rear side of the adjusting hydraulic rod 131, and the magnetic chip detection rod 133 is fixedly connected to the bottom of the electromagnetic detector 132. By setting the detection component 13, the adjusting hydraulic rod 131 can cooperate with the electromagnetic detector 132 and the magnetic chip detection rod 133. By adjusting the hydraulic rod 131 to adjust the position of the electromagnetic detector 132, the position of the magnetic chip detection rod 133 can be adjusted, so that the magnetic chip detection rod 133 can correct the area where magnetic chip detection is required, thereby increasing the stability during magnetic chip detection.

[0048] Among them, the magnetization component 14 includes a magnetic chip nozzle 141, a dry magnetic chip tank 142 and a wet magnetic chip tank 143. The two magnetic chip nozzles 141 are fixedly connected to the left side and the right side of the rear side of the electromagnetic detector 132 respectively. The dry magnetic chip tank 142 is connected to the right side of the top of the magnetic chip nozzle 141, and the wet magnetic chip tank 143 is connected to the left side of the top of the magnetic chip nozzle 141. By setting the magnetization component 14, the magnetic chip nozzle 141 can cooperate with the dry magnetic chip tank 142 and the wet magnetic chip tank 143. The dry magnetic chips are stored by the dry magnetic chip tank 142, and the wet magnetic chips are stored by the wet magnetic chip tank 143. In this way, the magnetic chip nozzle 141 can transport different types of magnetic chips according to the roughness of the inner wall of the current nuclear power plant containment. Dry powder magnetic powder is suitable for rough surfaces and is easy to operate and clean. Wet powder magnetic powder is suitable for smooth surfaces. It has good suspension and can better display subtle defects.

[0049] Among them, the storage component 15 includes a dry magnetic chips bin 151, a wet magnetic chips bin 152 and an interception net 153, which are clamped on the right side of the inner side of the drainage bin 121, and the wet magnetic chips bin 152 is clamped on the left side of the inner side of the drainage bin 121. The two interception nets 153 are respectively clamped on the top of the front side of the dry magnetic chips bin 151 and the top of the front side of the wet magnetic chips bin 152. By setting the storage component 15, the dry magnetic chips bin 151 can cooperate with the wet magnetic chips bin 152 and the interception net 153. The dry magnetic chips bin 151 stores dry magnetic chips, and the wet magnetic chips bin 152 can store wet magnetic chips, so as to realize the classified storage of magnetic chips recovery. The interception net 153 can intercept the magnetic chips to prevent them from being discharged with the airflow.

[0050] Among them, the recovery component 16 includes an adjustable electric rotating rod 161, an electromagnetic plate 162, a dry magnetic chip scraper 163 and a wet magnetic chip scraper 164. The two adjustable electric rotating rods 161 are respectively fixedly connected to the right side of the bottom of the dry magnetic chip bin 151 and the left side of the bottom of the wet magnetic chip bin 152. The electromagnetic plate 162 is fixedly connected to the output end of the bottom of the adjustable electric rotating rod 161. The dry magnetic chip scraper 163 is clamped on the right side of the bottom of the adjustable electric rotating rod 161, and the wet magnetic chip scraper 164 is clamped on the left side of the bottom of the adjustable electric rotating rod 161. By setting the recovery component 16, the adjustable electric rotating rod 161 can be connected with the electromagnetic plate 162, the dry magnetic chip scraper 163 and The wet magnetic chip scraper 164 cooperates with the electric rotating rod 161 to drive the electromagnetic plate 162 to rotate. When the electromagnetic plate 162 contacts the inside of the nuclear power plant containment, the inside of the nuclear power plant containment can be magnetized, thereby increasing the uniformity of the magnetic chips when they are sprayed into the inside of the containment, so that the magnetic chips can show the damaged parts. The dry magnetic chip scraper 163 can scrape the dry magnetic chips, and can be sucked into the dry magnetic chip bin 151 and stored through the negative pressure generated by the dry magnetic chip bin 151. The wet magnetic chip scraper 164 can scrape the wet magnetic chips, and can be sucked into the wet magnetic chip bin 152 and stored through the negative pressure generated by the wet magnetic chip bin 152.

[0051] Working principle of this embodiment: First, the detection mechanism 1 is powered on and started, and then the exhaust fan 122 will pump the air at the adsorption plate 123 into the drainage chamber 121, and then the drainage chamber 121 will pump the air to the energy supply mechanism 2 to provide wind force for the energy supply mechanism 2, so that the adsorption plate 123 can be adsorbed inside the containment vessel of the nuclear power plant through negative pressure, and then the electric crawler 112 will drive the buffer belt 113 to drive the positioning plate 111 to move to the required detection location, and adjusting the electric rotating rod 161 will drive the electromagnetic plate 162 to move to the required detection location, and the electromagnetic plate 162 will magnetize the required detection location, and then adjusting the hydraulic rod 131 will adjust the position of the electromagnetic detector 132 until the magnetic chip nozzle 141 moves to the required magnetic chip injection location, and then According to the roughness of the surface of the current internal structure of the containment, the dry magnetic chips in the dry magnetic chips tank 142 are sprayed on the rough surface, and the wet magnetic chips in the wet magnetic chips tank 143 are sprayed on the smooth surface. Then the electromagnetic detector 132 will detect the magnetic chips and the required inspection parts of the nuclear power plant containment shell through the magnetic chip detection rod 133. Until the damaged part appears, the electromagnetic detector 132 will use its own image acquisition structure to collect images of the damaged part. After the detection is completed, the dry magnetic chip scraper 163 will scrape off the dry magnetic chips, and then adsorb and store them in the dry magnetic chip bin 151 through the negative pressure in the dry magnetic chip bin 151. The wet magnetic chip scraper 164 will scrape off the wet magnetic chips, and then adsorb and store them in the wet magnetic chip bin 152 through the negative pressure in the wet magnetic chip bin 152.

[0052] Example 2

[0053] refer to Figure 6-9 A nondestructive testing device for the internal structure of a nuclear power plant containment vessel also includes an energy supply mechanism 2, wherein the energy supply mechanism 2 includes a conveying component 21, an energy storage component 22 and a transmission component 23. The conveying component 21 is arranged at the top of the front side of the positioning component 12, the energy storage component 22 is arranged at the bottom of the front side of the positioning component 12, and the transmission component 23 is arranged at the top of the energy storage component 22. The top of the energy storage component 22 is connected to the bottom of the conveying component 21. The energy supply mechanism 2, the conveying component 21 can cooperate with the energy storage component 22 and the transmission component 23, and the transmission component 23 is limited by the conveying component 21 and the energy storage component 22. When the transmission component 23 rotates with the flowing air, the transmission component 23 can be driven to generate electricity, thereby providing additional power support for the detection mechanism 1. The conveying component 21 can pressurize the air conveyed by the transmission component 23 and convey it to the detection mechanism 1, thereby providing the detection mechanism 1 with the air pressure required for magnetic chip injection, thereby improving the energy saving when performing magnetic chip inspection inside the nuclear power plant containment vessel.

[0054] The conveying assembly 21 includes a wet magnetic chip air delivery pipe 211, a dry magnetic chip air delivery pipe 212 and an air compressor 213. The wet magnetic chip air delivery pipe 211 is fixedly connected to the left side of the top of the rear side of the drainage bin 121, and the dry magnetic chip air delivery pipe 212 is fixedly connected to the right side of the top of the rear side of the drainage bin 121. The two air compressors 213 are respectively connected to the rear side of the wet magnetic chip air delivery pipe 211 and the rear side of the dry magnetic chip air delivery pipe 212. The rear sides of the two air compressors 213 are respectively connected to the front side of the wet magnetic chip tank 143 and the dry magnetic chip tank 142. The front side of the wet magnetic chips tank 142 is connected, and by setting a conveying component 21, the wet magnetic chips air supply pipe 211 can cooperate with the dry magnetic chips air supply pipe 212 and the air compressor 213. The air is respectively conveyed to the air compressor 213 for compression through the wet magnetic chips air supply pipe 211 and the dry magnetic chips air supply pipe 212. The air compressor 213 can respectively convey the compressed air to the magnetic chips nozzle 141 at the bottom of the dry magnetic chips tank 142 and the magnetic chips nozzle 141 at the bottom of the wet magnetic chips tank 143, so as to provide the required air pressure for the magnetic chips nozzle 141 to spray the magnetic chips.

[0055] Among them, the energy storage component 22 includes a limit plate 221, a micro generator 222 and a battery 223. The limit plate 221 is fixedly connected to the rear side of the drainage bin 121, the micro generator 222 is clamped at the bottom of the limit plate 221, and the battery 223 is fixedly connected to the output end of the rear side of the micro generator 222. By setting the energy storage component 22, the limit plate 221 can cooperate with the micro generator 222 and the battery 223. The micro generator 222 and the battery 223 are limited by the limit plate 221. When the micro generator 222 generates electricity driven by the transmission component 23, the battery 223 can be charged, so that the battery 223 can provide additional electrical energy for the overall structure of the detection mechanism 1.

[0056] The transmission assembly 23 includes a rotating plate 231, a guide blade 232 and a drainage spiral plate 233. The two rotating plates 231 are respectively rotatably connected to the left side and the right side of the top of the limiting plate 221. The guide blade 232 is welded to the inner side of the rotating plate 231. The drainage spiral plate 233 is welded to the bottom of the inner side of the rotating plate 231. The tops of the two rotating plates 231 are respectively connected to the bottom of the front side of the wet magnetic chips air supply pipe 211 and the bottom of the front side of the dry magnetic chips air supply pipe 212. By setting the transmission assembly 23, the rotating plates 231 are respectively connected to the bottom of the front side of the wet magnetic chips air supply pipe 211 and the bottom of the front side of the dry magnetic chips air supply pipe 212. The plate 231 can cooperate with the guide blade 232 and the drainage spiral plate 233. The guide blade 232 and the drainage spiral plate 233 are limited by the rotating plate 231. When the guide blade 232 rotates with the flowing air, the drainage spiral plate 233 can be driven to rotate together, so that the drainage spiral plate 233 can concentrate the air into the wet magnetic chips air supply pipe 211 and the dry magnetic chips air supply pipe 212, and the rotating plate 231 can provide the micro generator 222 with the kinetic energy required for power generation when rotating.

[0057] Working principle of this embodiment: First, when the detection mechanism 1 operates to generate strong airflow, the guide blade 232 will collect the airflow passing through and rotate with the push of the airflow, and the drainage spiral plate 233 will concentrate the air and transport it to the wet magnetic chips air supply pipe 211 and the dry magnetic chips air supply pipe 212. The wet magnetic chips air supply pipe 211 and the dry magnetic chips air supply pipe 212 will respectively transport the air to the air compressor 213 for compression, and the compressed air will be sent into the detection mechanism 1 to provide the required airflow for the detection mechanism 1. The micro generator 222 can generate electricity with the kinetic energy generated by the rotation of the rotating plate 231, thereby transmitting the generated electrical energy to the battery 223 for storage, and the battery 223 will provide additional power support for the detection mechanism 1 as a whole.

[0058] This specific embodiment is only an explanation of the present invention, and it is not a limitation of the present invention. After reading this specification, those skilled in the art can make non-creative modifications to the present embodiment as needed. Although the embodiments of the present invention have been shown and described, it is understandable to those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A nondestructive testing device for the internal structure of a nuclear power plant containment vessel, comprising a testing mechanism (1) and an energy supply mechanism (2), characterized in that: The energy supply mechanism (2) is fixedly connected to the front side of the detection mechanism (1); the detection mechanism (1) comprises a moving component (11), a positioning component (12), a detection component (13), a magnetization component (14), a storage component (15) and a recovery component (16); the positioning component (12) is arranged on the inner side of the moving component (11); the detection component (13) is arranged on the rear side of the positioning component (12); the magnetization component (14) is arranged on the rear side of the detection component (13); the storage component (15) is arranged on the inner side of the positioning component (11); The energy supply mechanism (2) comprises a conveying component (21), an energy storage component (22) and a transmission component (23); the conveying component (21) is arranged at the top of the front side of the positioning component (12); the energy storage component (22) is arranged at the bottom of the front side of the positioning component (12); the transmission component (23) is arranged at the top of the energy storage component (22); and the top of the energy storage component (22) is connected to the bottom of the conveying component (21).

2. A nondestructive testing device for the internal structure of a nuclear power plant containment vessel according to claim 1, characterized in that: The moving assembly (11) comprises a positioning plate (111), an electric crawler (112) and a buffer belt (113); the two electric crawlers (112) are respectively fixedly connected to two sides of the positioning plate (111); and the buffer belt (113) is sleeved on the surface of the electric crawler (112).

3. A nondestructive testing device for the internal structure of a nuclear power plant containment vessel according to claim 2, characterized in that: The positioning assembly (12) comprises a drainage bin (121), an exhaust fan (122) and a suction plate (123); the drainage bin (121) is fixedly connected to the inner side of the positioning plate (111); the exhaust fan (122) is connected to the inner side of the drainage bin (121); and the suction plate (123) is connected to the bottom of the exhaust fan (122).

4. A nondestructive testing device for the internal structure of a nuclear power plant containment vessel according to claim 3, characterized in that: The detection assembly (13) comprises an adjusting hydraulic rod (131), an electromagnetic detector (132) and a magnetic chip detection rod (133); the adjusting hydraulic rod (131) is fixedly connected to the rear side of the drainage bin (121); the electromagnetic detector (132) is fixedly connected to the rear side of the adjusting hydraulic rod (131); and the magnetic chip detection rod (133) is fixedly connected to the bottom of the electromagnetic detector (132).

5. A nondestructive testing device for the internal structure of a nuclear power plant containment vessel according to claim 4, characterized in that: The magnetization assembly (14) comprises a magnetic chip nozzle (141), a dry magnetic chip tank (142) and a wet magnetic chip tank (143). The two magnetic chip nozzles (141) are respectively fixedly connected to the left side and the right side of the rear side of the electromagnetic detector (132). The dry magnetic chip tank (142) is connected to the right side of the top of the magnetic chip nozzle (141), and the wet magnetic chip tank (143) is connected to the left side of the top of the magnetic chip nozzle (141).

6. A nondestructive testing device for the internal structure of a nuclear power plant containment vessel according to claim 3, characterized in that: The storage assembly (15) comprises a dry magnetic scrap bin (151), a wet magnetic scrap bin (152) and an interception net (153), wherein the dry magnetic scrap bin (151) is connected to the right side of the inner side of the drainage bin (121), and the wet magnetic scrap bin (152) is connected to the left side of the inner side of the drainage bin (121), and the two interception nets (153) are respectively connected to the top of the front side of the dry magnetic scrap bin (151) and the top of the front side of the wet magnetic scrap bin (152).

7. A nondestructive testing device for the internal structure of a nuclear power plant containment vessel according to claim 6, characterized in that: The recovery component (16) comprises an adjustable electric rotating rod (161), an electromagnetic plate (162), a dry magnetic chip scraper (163) and a wet magnetic chip scraper (164); the two adjustable electric rotating rods (161) are respectively fixedly connected to the right side of the bottom of the dry magnetic chip bin (151) and the left side of the bottom of the wet magnetic chip bin (152); the electromagnetic plate (162) is fixedly connected to the output end of the bottom of the adjustable electric rotating rod (161); the dry magnetic chip scraper (163) is clamped to the right side of the bottom of the adjustable electric rotating rod (161); and the wet magnetic chip scraper (164) is clamped to the left side of the bottom of the adjustable electric rotating rod (161).

8. A nondestructive testing device for the internal structure of a nuclear power plant containment vessel according to claim 5, characterized in that: The conveying assembly (21) comprises a wet magnetic chips air supply pipe (211), a dry magnetic chips air supply pipe (212) and an air compressor (213). The wet magnetic chips air supply pipe (211) is fixedly connected to the left side of the top of the rear side of the drainage bin (121), and the dry magnetic chips air supply pipe (212) is fixedly connected to the right side of the top of the rear side of the drainage bin (121). The two air compressors (213) are respectively connected to the rear side of the wet magnetic chips air supply pipe (211) and the rear side of the dry magnetic chips air supply pipe (212). The rear sides of the two air compressors (213) are respectively connected to the front side of the wet magnetic chips tank (143) and the front side of the dry magnetic chips tank (142).

9. A nondestructive testing device for the internal structure of a nuclear power plant containment vessel according to claim 8, characterized in that: The energy storage assembly (22) comprises a limit plate (221), a micro generator (222) and a storage battery (223); the limit plate (221) is fixedly connected to the rear side of the drainage bin (121); the micro generator (222) is clamped to the bottom of the limit plate (221); and the storage battery (223) is fixedly connected to the output end of the rear side of the micro generator (222).

10. A nondestructive testing device for the internal structure of a nuclear power plant containment vessel according to claim 9, characterized in that: The transmission assembly (23) comprises a rotating plate (231), a guide blade (232) and a drainage spiral plate (233); the two rotating plates (231) are rotatably connected to the left side and the right side of the top of the limiting plate (221), respectively; the guide blade (232) is welded to the inner side of the rotating plate (231); the drainage spiral plate (233) is welded to the bottom of the inner side of the rotating plate (231); the tops of the two rotating plates (231) are respectively connected to the bottom of the front side of the wet magnetic chips air supply pipe (211) and the bottom of the front side of the dry magnetic chips air supply pipe (212).

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