Porous material porosity detection equipment based on X-ray imaging

Abstract

The invention provides porous material porosity detection equipment based on X-ray imaging, and relates to the technical field of porous material detection, the porous material porosity detection equipment comprises a mounting part and a detection part, the mounting part is internally provided with a detection device; the detection device comprises an X-ray source, a chopping device arranged on the outer side of the X-ray source in a sleeving mode and a driving assembly for driving the chopping device to rotate, the driving chopping device comprises a chopping ring with a chopping hole formed in the side wall, a hollow first heat dissipation ring is arranged at the upper end of the chopping ring, a hollow second heat dissipation ring is arranged at the lower end of the chopping ring, and the first heat dissipation ring and the second heat dissipation ring are arranged in parallel. And a heat dissipation channel communicated with the first heat dissipation ring and the second heat dissipation ring is arranged in the chopping ring. According to the liquid cooling structure, heat around the chopping ring can be absorbed in a liquid cooling mode and is driven to the outer side for heat dissipation, meanwhile, the volume and mass occupied by the liquid cooling structure are greatly reduced, the light-weight design of the X-ray imager is met, and a worker can more conveniently hold the liquid cooling structure by hand for continuous detection.

Description

Technical Field

[0001] This application relates to the field of porous material detection, and particularly to a porosity detection device for porous materials based on X-ray imaging. Background Art

[0002] Porosity is an important performance index of new materials. Taking new ceramic materials as an example, porosity directly determines the performance of new ceramic materials. The measurement process of the porosity of ceramic samples by traditional methods is relatively complex and cannot be directly detected. Through the technical principle of X-ray imaging, people can directly measure the porosity of new ceramic materials and directly obtain relevant data of new ceramic materials.

[0003] X-ray imagers all include structures such as transmitters, collimators, and choppers. Among them, the chopper includes structures such as a chopping disk and a chopping ring. The chopping ring with a circular ring structure has equally spaced chopping holes, so that the sizes of the flying spots formed during the scanning process are equal, ensuring the stable shape of the exposure point source during the exposure of the object to be measured, thereby improving the image resolution quality of the imaging.

[0004] However, the chopping ring is usually sleeved outside the transmitter and collimator, and there are only heat dissipation channels at the top or bottom. During the continuous detection work, the heat generated inside is difficult to be quickly discharged by a simple fan; in particular, the sizes of the chopping holes on the side wall of the chopping ring are usually small. For new ceramic materials with a large detection area and large thickness, it is necessary to increase the power of the device to improve the imaging effect, further causing the device to continuously heat up and unable to continuously detect; adding the existing serpentine tubular water cooling structure inside the X-ray imager results in a large overall volume, heavy mass, and unsatisfactory heat dissipation effect of the device, increasing the burden on the detection personnel, not suitable for the structural design of lightweight handheld detection, and difficult to continuously detect new ceramic materials. Summary of the Invention

[0005] In view of the above problems, embodiments of this application are proposed to provide a porosity detection device for porous materials based on X-ray imaging.

[0006] To solve the above problems, the present invention provides a porosity detection device for porous materials based on X-ray imaging. The invention can absorb the heat around the chopping ring by means of liquid cooling and drive it to the outside for heat dissipation. At the same time, the volume and mass occupied by the liquid cooling structure are greatly reduced, meeting the lightweight design of the X-ray imager and being more convenient for the staff to hold for continuous detection.

[0007] To solve the above problems, the technical solution adopted by the present invention is: A porosity detection device for porous materials based on X-ray imaging, comprising a mounting part and a detection part. A detection device is arranged inside the mounting part. The detection device includes an X-ray source, a chopping device sleeved outside the X-ray source, and a driving component for driving the chopping device to rotate. The chopping device includes a chopping ring with chopping holes formed in its side wall. A hollow first heat dissipation ring is arranged at the upper end of the chopping ring, and a hollow second heat dissipation ring is arranged at the lower end of the chopping ring. A heat dissipation channel communicating the first heat dissipation ring and the second heat dissipation ring is arranged inside the chopping ring. It also includes a relatively fixed annular heat dissipation base, which is sleeved outside the second heat dissipation ring and is in sealed rotational connection with it. The heat dissipation base is communicated with the first heat dissipation ring through a conveying device, and a liquid cooling medium is conveyed through the conveying device for directional flow. During the rotation of the chopping device, the liquid cooling medium is controlled to pass through the heat dissipation channel directionally to achieve heat exchange.

[0008] Preferably, a heat dissipation cover plate is fixed at the upper end of the first heat dissipation ring. A third conveying channel communicating with the first heat dissipation ring is formed inside the heat dissipation cover plate. A conveying joint is arranged at the axis of the upper end of the heat dissipation cover plate, and the driving component is arranged outside the conveying joint.

[0009] Preferably, heat dissipation blades are fixed at the lower end of the heat dissipation cover plate, and a plurality of connecting columns are arranged inside the heat dissipation cover plate. The inside of the connecting columns is hollow.

[0010] Preferably, the conveying device includes a conveying pipe. The first end of the conveying pipe is communicated with the conveying joint through a rotating seal, the second end of the conveying pipe is communicated with a storage box, the storage box is communicated with the heat dissipation base through a communicating pipe, and a one-way valve is arranged inside the communicating pipe.

[0011] Preferably, an annular first conveying channel is formed inside the heat dissipation base. A liquid pumping component is arranged between the second heat dissipation ring and the first conveying channel. During the directional rotation of the second heat dissipation ring, the liquid pumping component continuously pumps the liquid cooling medium in the first heat dissipation ring into the first conveying channel.

[0012] Preferably, the liquid pumping component includes a pumping ball fixedly connected to the inner wall of the second heat dissipation ring. A pumping pipe is arranged at the bottom of the first conveying channel. The pumping pipe is in an expanded state under normal conditions and has a reset elasticity, and the pumping pipe is located on the moving path of the pumping ball.

[0013] Preferably, a pumping step is fixed at the bottom of the first conveying channel. The pumping step includes an ascending slope and a flat slope, and the height of the ascending slope is less than the diameter of the pumping pipe.

[0014] Preferably, the chopping ring is integrally formed of a metal material. The chopping ring includes a plurality of chopping holes and a plurality of heat dissipation channels, and the chopping holes and the heat dissipation channels are alternately distributed.

[0015] Preferably, annular mounting plates are welded and fixed on both sides of the chopping ring, and the first heat dissipation ring and the second heat dissipation ring are respectively welded and fixed to the corresponding annular mounting plates.

[0016] Preferably, the conveying device further includes heat dissipation fins, a heat dissipation fan is installed outside the heat dissipation fins, a temperature detection element is installed inside the heat dissipation base, and the temperature detection element is electrically connected to the heat dissipation fan.

[0017] The beneficial effects of the present invention are as follows: Compared with the prior art, through the above structural design, the heat around the chopping ring can be absorbed by the liquid cooling method and driven to the outside for heat dissipation. By setting heat dissipation channels inside the chopping ring and the second heat dissipation ring and the first heat dissipation ring on both sides, etc., the normal flow of the liquid cooling medium can be ensured without affecting the detection, ensuring the continuous progress of efficient heat dissipation, and ultimately ensuring the normal progress of continuous detection. It is suitable for continuous image detection of high-power X-ray sources or multiple X-ray sources, and can continuously and effectively detect the porosity of new porous materials, especially suitable for new ceramic materials with large size and large thickness; at the same time, the liquid cooling structure is ingeniously built into the detection structure, greatly reducing the volume and mass occupied by the liquid cooling structure, meeting the lightweight design of the X-ray imager, and being more convenient for the staff to hold for continuous detection, further ensuring the normal progress of continuous and stable detection of new porous materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings described herein are used to provide a further understanding of the present application, and constitute a part of the present application. The schematic embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation to the present application. In the drawings: Figure 1 is a three-dimensional structure schematic diagram of the present invention.

[0019] Figure 2 is a three-dimensional structure schematic diagram of the detection device of the present invention.

[0020] Figure 3 is of the present invention Figure 2 top view structure schematic diagram.

[0021] Figure 4 is of the present invention Figure 3 A-A cross-sectional structure schematic diagram.

[0022] Figure 5 is of the present invention Figure 4 enlarged structure schematic diagram at B.

[0023] Figure 6 is of the present invention Figure 4Schematic diagram of the enlarged structure at position C.

[0024] Figure 7 This is for the present invention Figure 4 Schematic diagram of the enlarged structure at position D.

[0025] Figure 8 Schematic diagram of the explosion structure of the X-ray source, heat dissipation base, and chopping device of the present invention.

[0026] Figure 9 Schematic diagram of the three-dimensional structure of the chopping ring of the present invention.

[0027] In the figure: 100, X-ray imager; 110, installation part; 120, detection part; 200, X-ray source; 210, X-ray machine; 220, collimator; 300, heat dissipation base; 310, first conveying channel; 320, pumping pipe; 321, pumping step; 400, chopping device; 410, second heat dissipation ring; 411, fourth conveying channel; 412, connecting rod; 413, pumping ball; 420, chopping ring; 421, chopping hole; 422, heat dissipation channel; 430, first heat dissipation ring; 431, second conveying channel; 440, heat dissipation cover plate; 441, third conveying channel; 442, connecting column; 450, conveying joint; 500, driving component; 600, conveying device; 610, conveying pipe; 620, rotating seal; 630, heat dissipation fins; 700, storage box; 710, connecting pipe; 711, one-way valve; 800, heat dissipation blades. Detailed implementation manners

[0028] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions of this application will be clearly and completely described below in conjunction with specific embodiments of this application and the corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of this application, rather than all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the scope of protection of this application.

[0029] To solve the problems existing in the background technology, referring to the attached Figure 1 - attached Figure 9 , a porosity detection device for porous materials based on X-ray imaging includes an installation part 110 and a detection part 120. A detection device is provided inside the installation part 110. During the detection of the inside of structures such as boxes and backpacks, the staff holds the installation part 110, faces the detection part 120 towards the side of the structure to be detected, emits X-rays through the internal detection device, and based on the Compton effect, the detector obtains Compton photons with a scattering angle close to 180°, thereby obtaining the average electron density information of the near-surface layer material of the object to be detected, and finally forming a scanned image.

[0030] Specifically, the detection device includes an X-ray source 200, a chopping device 400 sleeved outside the X-ray source 200, and a driving assembly 500 for driving the chopping device 400 to rotate. The driving chopping device 400 includes a chopping ring 420 with a chopping hole 421 opened on its side wall. The driving assembly 500 can control the chopping device 400 to drive the chopping ring 420 to continuously rotate in a fixed direction. The chopping hole 421 allows X-rays to pass through, and the rest of the area can block X-rays, meeting the emission requirements of X-rays during the detection process.

[0031] A hollow first heat dissipation ring 430 is provided at the upper end of the chopping ring 420. A hollow second conveying channel 431 is formed inside the first heat dissipation ring 430. A hollow second heat dissipation ring 410 is provided at the lower end of the chopping ring 420. A hollow fourth conveying channel 411 is formed inside the second heat dissipation ring 410. A heat dissipation channel 422 connecting the first heat dissipation ring 430 and the second heat dissipation ring 410 is provided inside the chopping ring 420. A liquid cooling medium is filled between the two heat dissipation rings and the heat dissipation channel 422. The liquid cooling medium can absorb the heat generated by the surface of the chopping ring 420 and the X-ray source 200 inside, and can keep the temperature around the chopping ring 420 within a suitable range, avoiding the continuous temperature rise inside the X-ray imager 100 resulting in overheating of the device and even damage, or the device stopping working.

[0032] It further includes a relatively fixed annular heat dissipation base 300. The heat dissipation base 300 is sleeved outside the second heat dissipation ring 410 and is in sealed rotational connection with it. The heat dissipation base 300 is connected to the first heat dissipation ring 430 through a conveying device 600 to convey the liquid cooling medium to flow in a fixed direction. The heat dissipation base 300 can act as a base to limit the upper chopping device 400 and control the chopping device 400 to continuously rotate in a fixed direction at a predetermined position. At the same time, both sides of the chopping device 400 are respectively connected to the second heat dissipation ring 410 and the first heat dissipation ring 430 to form a cycle, enabling the low-temperature liquid cooling medium to continuously flow upward to form a cycle, carrying the heat around the chopping ring 420 to the outside for dissipation, achieving continuous cycle cooling, further improving the working time and working efficiency of the X-ray imager 100, and ensuring the effective and stable progress of continuous detection. During the rotation of the chopping device 400, the liquid cooling medium is controlled to pass through the heat dissipation channel 422 in a fixed direction to achieve heat exchange, and then keep the temperature around the chopping ring 420 within a suitable range all the time, ensuring the continuous progress of continuous detection.

[0033] In summary, through the above structural design, the heat around the chopping ring 420 can be absorbed by liquid cooling and driven to the outside for heat dissipation. By arranging a heat dissipation channel 422 inside the chopping ring 420 and second heat dissipation rings 410 and first heat dissipation rings 430 on both sides, the normal flow of the liquid cooling medium can be ensured without affecting the detection, ensuring the continuous progress of efficient heat dissipation, and ultimately ensuring the normal progress of continuous detection. It is suitable for continuous image detection of high-power X-ray sources 200 or multiple X-ray sources 200, and can continuously and effectively detect the porosity of new porous materials, especially suitable for new ceramic materials with large size and thickness. At the same time, the liquid cooling structure is ingeniously built into the detection structure, greatly reducing the volume and mass occupied by the liquid cooling structure, meeting the lightweight design of the X-ray imager 100, making it more convenient for the staff to hold for continuous detection, and further ensuring the normal progress of continuous and stable detection of new porous materials.

[0034] Further, a heat dissipation cover plate 440 is fixed to the upper end of the first heat dissipation ring 430. A third delivery channel 441 communicating with the first heat dissipation ring 430 is formed inside the heat dissipation cover plate 440. A delivery joint 450 is arranged at the axis of the upper end of the heat dissipation cover plate 440, and a drive assembly 500 is arranged outside the delivery joint 450.

[0035] Through the above structural design, the liquid cooling medium can finally enter the delivery joint 450 from bottom to top for collection, realizing directional movement. The third delivery channel 441 inside the heat dissipation cover plate 440 can divert the liquid cooling medium to ensure its normal directional flow.

[0036] The drive assembly 500 here can be selected as a belt drive structure or a gear drive structure. Taking the belt conveyor structure in the attached drawings as an example, a belt pulley is sleeved outside the delivery joint 450 to drive the heat dissipation cover plate 440 and related structures below to rotate directionally, realizing drive control. At the same time, the inside of the delivery joint 450 is designed with a hollow structure to ensure the directional flow of the liquid cooling medium.

[0037] Heat dissipation fins 800 are fixed to the lower end of the heat dissipation cover plate 440. A plurality of connecting columns 442 are arranged inside the heat dissipation cover plate 440, and the inside of the connecting columns 442 is hollow.

[0038] Through the above structural design, during the process of the chopping device 400 driving the heat dissipation fins 800 to rotate directionally, the continuously rotating heat dissipation fins 800 can make the gas around them flow directionally, and can cooperate with the liquid cooling inside the chopping device 400 to realize efficient air flow, accelerate the flow of internal hot air, and further realize efficient heat dissipation. At the same time, the inside of the connecting columns 442 is in a hollow structure, which can better allow the gas to flow through.

[0039] Specifically, the delivery device 600 includes a delivery pipe 610, and the first end of the delivery pipe 610 is connected to the delivery joint 450 through a rotating seal 620. The delivery pipe 610 and the delivery joint 450 can be connected by rotating the seal 620 to ensure that the delivery joint 450 rotates in a directional manner while avoiding leakage of the liquid cooling medium. The second end of the delivery pipe 610 is connected to a storage box 700, and the liquid cooling medium can be stored through the storage box 700; the storage box 700 is connected to the heat dissipation base 300 through a connecting pipe 710, and a one-way valve 711 is arranged inside the connecting pipe 710. Through the design of the one-way valve 711, the liquid cooling medium is controlled to enter the heat dissipation base 300 in one direction, thereby avoiding backflow of the liquid cooling medium and ensuring normal liquid cooling.

[0040] The conveying device 600 can guide the liquid cooling medium with a higher temperature in the first heat dissipation ring 430 to flow to the outside for heat dissipation, and at the same time redirect the cooled liquid cooling medium to the inside of the heat dissipation base 300 to facilitate overall circulation.

[0041] An annular first delivery channel 310 is formed inside the heat dissipation base 300, and a pump liquid assembly is arranged between the second heat dissipation ring 410 and the first delivery channel 310. During the directional rotation of the second heat dissipation ring 410, the pump liquid assembly continuously pumps the liquid cooling medium in the first heat dissipation ring 430 into the first delivery channel 310.

[0042] The pump liquid component here can select an existing micro pump body, which can be connected in series inside the loop to control the directional flow of the liquid cooling medium to achieve circulation.

[0043] This article provides a more preferred pump liquid assembly, which includes a pumping ball 413 fixedly connected to the inner wall of the second heat dissipation ring 410. The pumping ball 413 is fixedly connected to the inner wall of the second heat dissipation ring 410 through a connecting rod 412. A pumping tube 320 is provided at the bottom of the first delivery channel 310. The pumping tube 320 is normally in an expanded state and has reset elasticity. The pumping tube 320 is located on the moving path of the pumping ball 413.

[0044] The pumping ball 413 here can move synchronously with the second heat dissipation ring 410. The pumping tube 320 here is a pipe without a closed loop. During the directional movement of the pumping tube 320, the surface of the pumping tube 320 can be gradually squeezed, and the internal liquid can be squeezed into the first delivery channel 310 to achieve directional pumping. The pumping ball 413 can achieve synchronous pumping while rotating with the chopping device 400. The amount of liquid cooling medium pumped can be synchronously changed and adjusted with the rotation rate of the chopping device 400, realizing automatic adaptive control. There is no need to install a traditional pump body, further reducing the internal related structure, and facilitating the lightweight design of the X-ray imager 100.

[0045] It should be noted that the pumping ball 413 here should preferably squeeze the pumping pipe 320 into a relatively closed state. After being squeezed, the pumping pipe 320 can be reset elastically. During the reset process of the pumping pipe 320, since the front side of the pumping pipe 320 is in a relatively closed state under the extrusion of the pumping ball 413, the reset pumping pipe 320 can extract the liquid cooling medium from the storage box 700. At the same time, due to the presence of the one-way valve 711, it can prevent the internal liquid cooling medium from being reversely squeezed into the storage box 700 during the extrusion process, ensuring the directional flow cycle of the liquid cooling medium.

[0046] The liquid pumping assembly here can also be selected as multiple obliquely arranged liquid pumping blades. The multiple liquid pumping blades are installed at intervals at the lower end of the chopping ring 420. While the chopping ring 420 rotates, it can drive the multiple liquid pumping blades to rotate synchronously. The bottom of the liquid pumping blade extends into the second heat dissipation ring 410. The liquid pumping blade rotates horizontally towards the bottom. During the rotation process, the liquid cooling medium in the second heat dissipation ring 410 can flow along the inclined slope on the surface of the liquid pumping blade to achieve continuous pumping.

[0047] Furthermore, a pumping step 321 is fixed at the bottom of the first delivery channel 310. The pumping step 321 includes an ascending slope and a flat slope, and the height of the ascending slope is less than the diameter of the pumping pipe 320.

[0048] Through the design of the above structure, it can prevent the pumping ball 413 from squeezing the joint position of the pumping pipe 320, ensuring the normal pumping of the liquid cooling medium and avoiding damage to the internal structure. The pumping pipe 320 here is placed at the upper end of the pumping step 321 and can change synchronously with it. When the pumping ball 413 moves to the ascending slope, it can gradually squeeze the pumping pipe 320, and when it moves to the flat slope, it can directionally squeeze the liquid cooling medium in the pumping pipe 320 and finally discharge it into the first delivery channel 310.

[0049] Furthermore, the chopping ring 420 is integrally formed of a metal material. The chopping ring 420 includes a plurality of chopping holes 421 and a plurality of heat dissipation channels 422, and the chopping holes 421 and the heat dissipation channels 422 are alternately distributed.

[0050] The sizes and quantities of the chopping holes 421 and the heat dissipation channels 422 can be set according to actual detection requirements. The heat dissipation channels 422 here can make full use of the gap between two chopping holes 421 to achieve continuous pumping of the liquid cooling medium, ensuring the normal progress of the pumping of the liquid cooling medium. At the same time, the alternately arranged heat dissipation channels 422 can continuously and efficiently absorb the heat around the chopping ring 420 from different positions, achieving continuous and efficient heat dissipation.

[0051] Ring-shaped mounting plates are welded and fixed on both sides of the chopping ring 420. The first heat dissipation ring 430 and the second heat dissipation ring 410 are respectively welded and fixed to the corresponding ring-shaped mounting plates. Here, the chopping ring 420, the first heat dissipation ring 430, and the second heat dissipation ring 410 are all processed and fixed by welding in the later stage, which is convenient for the pre-processing and manufacturing of related structures, ensures the accuracy of related structures, and the welding between the second heat dissipation ring 410, the chopping ring 420, and the first heat dissipation ring 430 needs to ensure the overall sealing performance and avoid the leakage of the liquid cooling medium.

[0052] The conveying device 600 here further includes heat dissipation fins 630. A heat dissipation fan is installed outside the heat dissipation fins 630, and a temperature detection element is installed inside the heat dissipation base 300. The temperature detection element is electrically connected to the heat dissipation fan.

[0053] The heat dissipation fins 630 are sleeved outside the conveying pipe 610, which can absorb and efficiently dissipate the heat of the conveying pipe 610, enabling the liquid cooling medium in the conveying pipe 610 to be quickly cooled within a short distance. At the same time, the heat dissipation fan here can be automatically adjusted according to the detection of the temperature detection element. When the temperature inside the heat dissipation base 300 is too high, the heat dissipation power of the heat dissipation fan is started or enhanced to improve the overall heat dissipation effect.

[0054] Detection method: The operator holds the installation part 110, turns on the internal switch, and fits the detection part 120 to the object to be detected. During this process, the X-ray source 200 continuously emits X-rays in a predetermined direction, and the chopping device 400 continuously rotates. Different chopping holes 421 on the surface of the chopping device 400 continuously face the collimator 220 of the X-ray source 200. The chopping ring 420 absorbs most of the X-rays, and only where the slit and the fan-shaped beam intersect forms a pen-shaped X-ray (commonly known as a flying spot) that moves up and down. Through the flying spot scanning method, the average electron density information of the near-surface substances of the object to be detected can be obtained. The electron density is related to the density, material, etc. of the object to be detected, and an X-ray scanning image can be formed. By the gray-scale difference and shape of the obtained image, the object to be detected can be discriminated, realizing non-invasive ray imaging inspection of the object to be detected.

[0055] By increasing the power of the X-ray source 200, the image presentation effect of this type of X-ray imager 100 can be enhanced. At the same time, the heat generated around the X-ray source 200 increases. The liquid cooling medium flowing directionally in the heat dissipation base 300 and the chopping device 400 can absorb and carry away the heat, maintaining a relatively low working temperature inside continuously, ensuring the continuous and efficient progress of detection. At the same time, the liquid cooling structure is built inside the chopping device 400, which can streamline related structures, reduce the volume and mass, and facilitate the lightweight design of the X-ray imager 100.

[0056] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the various embodiments of the present application.

Claims

1. A porosity detection device for porous materials based on X-ray imaging, comprising an installation part (110) and a detection part (120). A detection device is arranged inside the installation part (110). The detection device includes an X-ray source (200), a chopping device (400) sleeved outside the X-ray source (200), and a driving component (500) for driving the chopping device (400) to rotate. It is characterized in that: The driving chopping device (400) includes a chopping ring (420) with a chopping hole (421) opened on its side wall. A hollow first heat dissipation ring (430) is arranged at the upper end of the chopping ring (420), and a hollow second heat dissipation ring (410) is arranged at the lower end of the chopping ring (420). A heat dissipation channel (422) communicating the first heat dissipation ring (430) and the second heat dissipation ring (410) is arranged inside the chopping ring (420). It also includes a relatively fixed annular heat dissipation base (300). The heat dissipation base (300) is sleeved outside the second heat dissipation ring (410) and is in sealed rotational connection with it. The heat dissipation base (300) is communicated with the first heat dissipation ring (430) through a conveying device (600), and a liquid cooling medium is conveyed to flow directionally through the conveying device (600); Among them, during the rotation of the chopping device (400), the liquid cooling medium is controlled to pass through the heat dissipation channel (422) directionally to achieve heat exchange.

2. The porosity detection device of a porous material based on X-ray imaging according to claim 1, characterized in that, A heat dissipation cover plate (440) is fixed at the upper end of the first heat dissipation ring (430). A third conveying channel (441) communicating with the first heat dissipation ring (430) is formed inside the heat dissipation cover plate (440). A conveying joint (450) is arranged at the axis at the upper end of the heat dissipation cover plate (440). The driving component (500) is arranged outside the conveying joint (450).

3. The porosity detection device for porous materials based on X-ray imaging according to claim 2, wherein, Heat dissipation blades (800) are fixed at the lower end of the heat dissipation cover plate (440). A plurality of connecting columns (442) are arranged inside the heat dissipation cover plate (440), and the inside of the connecting columns (442) is hollow.

4. The porosity detection device of a porous material based on X-ray imaging according to claim 2, characterized in that, The conveying device (600) includes a conveying pipe (610). The first end of the conveying pipe (610) is communicated with the conveying joint (450) through a rotary seal (620). The second end of the conveying pipe (610) is communicated with a storage box (700). The storage box (700) is communicated with the heat dissipation base (300) through a communication pipe (710). A one-way valve (711) is arranged inside the communication pipe (710).

5. The porosity detection device of a porous material based on X-ray imaging according to claim 1, characterized in that, An annular first conveying channel (310) is formed inside the heat dissipation base (300). A liquid pumping component is arranged between the second heat dissipation ring (410) and the first conveying channel (310). During the directional rotation of the second heat dissipation ring (410), the liquid pumping component continuously pumps the liquid cooling medium in the first heat dissipation ring (430) into the first conveying channel (310).

6. The porosity detection device of a porous material based on X-ray imaging according to claim 5, wherein, The pump liquid assembly includes a pumping ball (413) fixedly connected to the inner wall of the second heat dissipation ring (410). A pumping pipe (320) is provided at the bottom of the first delivery channel (310). The pumping pipe (320) is normally in an expanded state and has a reset elasticity. The pumping pipe (320) is located on the moving path of the pumping ball (413).

7. The porosity detection device for porous materials based on X-ray imaging according to claim 6, characterized in that, A pumping step (321) is fixed at the bottom of the first delivery channel (310). The pumping step (321) includes an ascending slope and a flat slope. The height of the ascending slope is less than the diameter of the pumping pipe (320).

8. The porosity detection device of a porous material based on X-ray imaging according to claim 1, characterized in that, The chopping ring (420) is integrally formed of a metal material. The chopping ring (420) includes a plurality of chopping holes (421) and a plurality of heat dissipation channels (422). The chopping holes (421) and the heat dissipation channels (422) are alternately distributed.

9. The porosity detection device of a porous material based on X-ray imaging according to claim 1, characterized in that, Ring-shaped mounting plates are fixedly welded to both sides of the chopping ring (420). The first heat dissipation ring (430) and the second heat dissipation ring (410) are respectively fixedly welded to the corresponding ring-shaped mounting plates.

10. The porosity detection device of a porous material based on X-ray imaging according to claim 1, characterized in that, The conveying device (600) further includes heat dissipation fins (630). A heat dissipation fan is installed outside the heat dissipation fins (630). A temperature detection element is installed inside the heat dissipation base (300). The temperature detection element is electrically connected to the heat dissipation fan.

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