Irradiation electron linear accelerator with heat dissipation structure

Abstract

The utility model relates to the technical field of electron linear accelerators, in particular to an irradiation electron linear accelerator with a heat dissipation structure. Comprising a heat dissipation box, a maintenance mechanism, a temperature sensor, a position sensor, a control unit and a heat dissipation module. The temperature of the outer wall of the air inlet pipe is monitored through the temperature sensor and the position sensor, when the temperature is too high, the temperature sensor sends a signal to the control unit, the control unit conveys nitrogen in the heat dissipation device to the spraying head, and the spraying head conducts spraying heat dissipation on the air inlet pipe; the position sensor can send a signal to the controller, the controller controls the sliding device to drive the spraying head to slide, the spraying head can move to the designated position, and therefore local cooling of the air inlet pipe is achieved, and in the use process of the high-energy accelerator, compared with water cooling heat dissipation, the cooling effect is better through nitrogen cooling, and the cooling efficiency is higher.

Description

Technical Field

[0001] The utility model relates to the technical field of electron linear accelerators, in particular to an irradiated electron linear accelerator with a heat dissipation structure. Background Art

[0002] An irradiation electron linear accelerator is a device used to generate high-energy electron beams, which are usually used in the fields of medical radiotherapy, material irradiation and scientific research. In medical radiotherapy, an irradiation electron linear accelerator can be used to treat tumors and cancers, irradiating tumor tissues with high-energy electron beams to kill cancer cells; in the field of material irradiation, an irradiation electron linear accelerator can be used to improve the performance and density of materials, or to kill microorganisms and harmful organisms; in scientific research, an irradiation electron linear accelerator can be used to conduct basic physics and nuclear physics experiments, as well as to study atomic and molecular structures; in general, an irradiation electron linear accelerator can generate high-energy electron beams for a variety of applications in the fields of medicine, science and industry.

[0003] For example, a pharmaceutical-specific electron linear accelerator with a Chinese patent authorization announcement number of CN 211880688 U uses water cooling to improve the heat dissipation speed of the pulse regulator, microwave device, focusing coil and accelerating tube, so as to avoid the problem that the various components of the electron linear accelerator stop working due to excessive heat collection during long-term use, delaying the entire sterilization work, and thus reducing the work efficiency. However, when the cooling fan is used to dissipate the heat of the cold row, a large amount of heat will be dissipated. When used for a long time, the cooling effect of the cooling fan will increase due to the working environment temperature, thereby causing the overall heat dissipation speed to decrease, affecting subsequent use.

[0004] Another example is an irradiated electron linear accelerator disclosed in Chinese patent CN214960256U. The device starts a water pump to allow cooling water in the cold water tank to pass through a connecting pipe and a water inlet pipe into a conduit in the inner cavity of the heat sink, and is sprayed out through a nozzle to dissipate heat from the outer wall of the air inlet pipe, so that the air inlet pipe is kept at a relatively low temperature, thereby cooling the air entering the air inlet end of the heat dissipation fan through the air inlet pipe, and then dissipating heat from the heat dissipation fan, thereby achieving the purpose of improving the heat dissipation effect of the radiator and facilitating long-term use by users.

[0005] Although water cooling can provide a good cooling effect for the cooling fan, this method will cause the overall size of the equipment to be too large. In addition, for some high-energy accelerators, the instantaneous temperature generated during operation is high, which can easily lead to poor cooling effect of water cooling, resulting in inconvenience in use. Utility Model Content

[0006] In view of the above problems, an irradiated electron linear accelerator with a heat dissipation structure is provided. The outer wall temperature of the air inlet pipe is monitored by a temperature sensor and a position sensor, so that the air inlet pipe can be evenly cooled. In the use of a high-energy accelerator, cooling by nitrogen has a better cooling effect and higher cooling efficiency than water cooling.

[0007] To solve the problems of the prior art, the utility model provides an irradiated electron linear accelerator with a heat dissipation structure, comprising a mounting plate mounted on the electron linear accelerator, a plurality of heat dissipation fans being mounted on the head of the mounting plate, a cold row being mounted on the tail of the mounting plate, and characterized in that an auxiliary component is arranged on the mounting plate, characterized in that the auxiliary component comprises a heat dissipation box, an air inlet pipe, a maintenance mechanism, a temperature sensor, a position sensor, a controller and a heat dissipation module; a top cover is arranged on the top of the heat dissipation box; the number of air inlet pipes is consistent with the number of heat dissipation fans and is connected to the heat dissipation fans in a one-to-one correspondence; the maintenance mechanism is arranged on a side of the top of the heat dissipation box away from the top cover; there are a plurality of position sensors and the position sensors are arranged in an array on both sides of the inside of the heat dissipation box; there are a plurality of temperature sensors and the temperature sensors are arranged in the heat dissipation box; a control unit is arranged on the heat dissipation box; the heat dissipation module is arranged on the top cover, and the heat dissipation module comprises a heat dissipation device, a sliding device and a spray head; the heat dissipation device is arranged on the top cover, the output end of the heat dissipation device is connected to the spray head, and the sliding device is arranged in the heat dissipation box; the number of the spray heads is a plurality and the spray heads are arranged in an array at the output end of the sliding device.

[0008] Preferably, the heat dissipation device includes a first pipeline, a second pipeline and a nitrogen compressor; the nitrogen compressor is arranged on the top cover; the first pipeline and the second pipeline have the same structure, one side of the first pipeline and the second pipeline are connected to the nitrogen compressor, and the other side of the first pipeline and the second pipeline pass through the heat dissipation box and are connected to the spray head.

[0009] Preferably, the sliding device includes a threaded rod, a smooth rod, a sliding frame and a driver; the threaded rod is rotatably arranged on the cooling box; the smooth rod has a pair of sliding frames arranged on both sides of the threaded rod and slidably arranged on the threaded rod; the driver is arranged on the cooling box, and the output end of the driver is transmission-connected to the threaded rod.

[0010] Preferably, the spray head is funnel-shaped, and a plurality of spray holes are arranged at the bottom of the spray head.

[0011] Preferably, the inspection mechanism includes a sealing plate and a sliding mechanism; the sliding mechanism is arranged on the top cover; and the sealing plate is slidably arranged on the sliding mechanism.

[0012] Preferably, the sliding mechanism comprises a sliding block; the sliding block is a pair and is arranged on both sides of the sealing plate; and a sliding groove for the sliding block to slide is arranged on the heat dissipation box.

[0013] Preferably, a handle is provided on the top of the sealing plate, and a sheath is provided outside the handle.

[0014] Preferably, the sheath is made of rubber.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] The temperature of the outer wall of the air inlet pipe is monitored by the temperature sensor and the position sensor. When the temperature is too high, the temperature sensor sends a signal to the control unit, and the control unit transports the nitrogen in the heat dissipation device to the spray head, so that the spray head sprays the air inlet pipe to dissipate heat. By setting the position sensor, the position sensor can send a signal to the controller, and the controller controls the sliding device to drive the spray head to slide, so that the spray head can move to the specified position, thereby locally cooling the air inlet pipe. In the use of high-energy accelerators, cooling by nitrogen has a better cooling effect and higher cooling efficiency than water cooling. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a three-dimensional schematic diagram of an irradiated electron linear accelerator with a heat dissipation structure. Figure 1 .

[0018] Figure 2 This is a three-dimensional schematic diagram of an irradiated electron linear accelerator with a heat dissipation structure. Figure 2 .

[0019] Figure 3 It is an exploded view of the partial structure of an irradiated electron linear accelerator with a heat dissipation structure.

[0020] Figure 4 This is a schematic diagram of the partial three-dimensional structure of an irradiated electron linear accelerator with a heat dissipation structure. Figure 1 .

[0021] Figure 5 This is a schematic diagram of the partial three-dimensional structure of an irradiated electron linear accelerator with a heat dissipation structure. Figure 2 .

[0022] The numbers in the figure are: 1. heat sink; 11. top cover; 12. controller; 2. air inlet pipe; 3. maintenance mechanism; 31. sealing plate; 311. handle; 32. sliding mechanism; 321. sliding block; 322. slide groove; 4. temperature sensor; 5. position sensor; 6. heat dissipation module; 61. heat dissipation device; 611. first pipeline; 612. second pipeline; 613. nitrogen compressor; 62. sliding device; 621. threaded rod; 622. bare rod; 623. sliding rack; 624. driver; 63. spray head; 7. mounting plate; 71. cooling fan; 72. radiator. DETAILED DESCRIPTION

[0023] In order to further understand the features, technical means, specific objectives and functions of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0024] See also Figures 1 to 5 As shown, an irradiation electron linear accelerator with a heat dissipation structure includes a mounting plate 7 mounted on the electron linear accelerator, a plurality of heat dissipation fans 71 are mounted on the head of the mounting plate 7, a cold row 72 is mounted on the tail of the mounting plate 7, and an auxiliary component is provided on the mounting plate 11, characterized in that the auxiliary component includes a heat dissipation box 1, an air inlet pipe 2, a maintenance mechanism 3, a temperature sensor 4, a position sensor 5, a controller 12 and a heat dissipation module 6; a top cover 11 is provided on the top of the heat dissipation box 1; the number of the air inlet pipes 2 is consistent with the number of the heat dissipation fans 71 and is connected to the heat dissipation fans 71 one by one On; the inspection mechanism 3 is arranged on the side of the top of the heat sink 1 away from the top cover 11; there are multiple position sensors 5 and the array is arranged on both sides of the inside of the heat sink 1; there are multiple temperature sensors 4 and they are arranged in the heat sink 1; the control unit is arranged on the heat sink 1; the heat dissipation module 6 is arranged on the top cover 11, and the heat dissipation module 6 includes a heat dissipation device 61, a sliding device 62 and a spray head 63; the heat dissipation device 61 is arranged on the top cover 11, and the output end of the heat dissipation device 61 is connected to the spray head 63, and the sliding device 62 is arranged in the heat sink 1; the number of the spray head 63 is multiple and the array is arranged at the output end of the sliding device 62.

[0025] During operation, the temperature of the outer wall of the air inlet pipe 2 is monitored by the temperature sensor 4 and the position sensor 5. When the temperature is too high, the temperature sensor 4 sends a signal to the control unit, and the control unit transports the nitrogen in the heat dissipation device 61 to the spray head 63, so that the spray head 63 sprays and dissipates heat on the air inlet pipe 2. Through the setting of the position sensor 5, the position sensor 5 can send a signal to the controller 12, and the controller 12 controls the sliding device 62 to drive the spray head 63 to slide, so that the spray head 63 can move to the specified position, thereby locally cooling the air inlet pipe 2, which is more practical.

[0026] See also Figure 2 As shown, the heat dissipation device 61 includes a first pipeline 611, a second pipeline 612 and a nitrogen compressor 613; the nitrogen compressor 613 is arranged on the top cover 11; the first pipeline 611 and the second pipeline 612 have the same structure, one side of the first pipeline 611 and the second pipeline 612 is connected to the nitrogen compressor 613, and the other side of the first pipeline 611 and the second pipeline 612 passes through the heat dissipation box 1 and is connected to the spray head 63.

[0027] When heat dissipation is required, the nitrogen compressor 613 transports nitrogen to the spray head 63 through the first pipe 611 and the second pipe 612, and the spray head 63 sprays nitrogen toward the air inlet pipe 2, thereby cooling the outer wall of the air inlet pipe 2 to prevent the work efficiency from being reduced due to overheating of the air inlet pipe 2.

[0028] See also Figure 4 As shown, the sliding device 62 includes a threaded rod 621, a smooth rod 622, a sliding frame 623 and a driver 624; the threaded rod 621 is rotatably set on the cooling box; the smooth rod 622 has a pair and is set on both sides of the threaded rod 621; the sliding frame 623 is slidably set on the threaded rod 621; the driver 624 is set on the cooling box, and the output end of the driver 624 is transmission-connected to the threaded rod 621.

[0029] When it is necessary to try to slide the sliding device 62 to drive the spray head 63 to spray different positions, the driver 624 drives the threaded rod 621 to rotate, and the sliding frame 623 is provided with a through hole for the threaded rod 621 to pass through, and the inside of the through hole is provided with a thread that engages with the threaded rod 621. Therefore, when the threaded rod 621 rotates, the sliding frame 623 slides along the direction of the threaded rod 621, so that the sliding frame 623 drives the spray head 63 to move synchronously, thereby realizing the spray head 63 to spray and cool the air inlet pipe 2 at different positions.

[0030] See also Figure 4 As shown, the spray head 63 is funnel-shaped, and a plurality of spray holes are arranged at the bottom of the spray head 63 .

[0031] By setting the spray head 63 to be funnel-shaped, the spray range of the spray head can be made wider, and by setting multiple groups of spray holes, the density of the liquid nitrogen sprayed by the spray head can be made different, so that the air inlet pipes 2 with different temperatures can be cooled, thereby improving the cooling efficiency.

[0032] See also Figure 2 As shown, the inspection mechanism 3 includes a sealing plate 31 and a sliding mechanism 32 ; the sliding mechanism 32 is disposed on the top cover 11 ; and the sealing plate 31 is slidably disposed on the sliding mechanism 32 .

[0033] By providing the sliding mechanism 32 and the sealing plate 31 , the heat sink 1 can be sealed and it is convenient for operators to inspect and repair the inside of the heat sink 1 .

[0034] As shown in FIG. 3 , the sliding mechanism 32 includes a sliding block 321 and a sliding groove 322 ; the sliding block 321 is a pair and is arranged on both sides of the sealing plate 31 ; the number of the sliding grooves 322 is consistent with the number of the sliding blocks 321 and is arranged on the heating box in a one-to-one correspondence with the sliding blocks 321 .

[0035] When the operator pulls the sealing plate 31 , the sliding block 321 slides along the sliding groove 322 , so that the sliding plate can be moved out of the heat sink 1 , thereby facilitating maintenance.

[0036] See also Figure 3 As shown, a handle 311 is provided on the top of the sealing plate 31 , and a sheath is provided outside the handle 311 .

[0037] The provision of the handle 311 can make it easier for the operator to slide the sealing plate 31, and the provision of the sheath can effectively prevent the operator's hands from being frozen due to the cooling of the liquid nitrogen inside the cooling box, thereby increasing safety.

[0038] See also Figures 1 to 4 As shown, the sheath is made of rubber.

[0039] Rubber is a soft material. By using a rubber sheath, the operator's grip can be increased and comfort can be improved.

[0040] The above embodiments only express one or several implementation methods of the present invention, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention shall be based on the attached claims.

Claims

1. An irradiated electron linear accelerator with a heat dissipation structure, comprising a mounting plate (7) mounted on the electron linear accelerator, a plurality of heat dissipation fans (71) being mounted on the head of the mounting plate (7), and a cold row (72) being mounted on the tail of the mounting plate (7), characterized in that: The mounting plate (7) is provided with auxiliary components, which include a heat sink (1), an air inlet pipe (2), a maintenance mechanism (3), a temperature sensor (4), a position sensor (5), a controller (12) and a heat dissipation module (6); A top cover (11) is provided on the top of the heat dissipation box (1); The number of air inlet pipes (2) is consistent with the number of cooling fans (71) and they are connected to the cooling fans (71) in a one-to-one correspondence; The inspection mechanism (3) is arranged on a side of the top of the heat sink (1) away from the top cover (11); There are multiple position sensors (5) arranged in an array on both sides of the heat sink (1); There are a plurality of temperature sensors (4) which are arranged in the heat dissipation box (1); The controller (12) is arranged on the heat dissipation box (1); The heat dissipation module (6) is arranged on the top cover (11), and the heat dissipation module (6) comprises a heat dissipation device (61), a sliding device (62) and a spray head (63); the heat dissipation device (61) is arranged on the top cover (11), the output end of the heat dissipation device (61) is connected to the spray head (63), and the sliding device (62) is arranged inside the heat dissipation box (1); the number of the spray heads (63) is multiple and the spray heads (63) are arranged in an array at the output end of the sliding device (62), and the nitrogen in the heat dissipation device (61) is transported to the spray head (63), so that the spray head (63) sprays the air inlet pipe (2) to dissipate heat.

2. The irradiated electron linear accelerator with a heat dissipation structure according to claim 1, characterized in that: The heat dissipation device (61) comprises a first pipeline (611), a second pipeline (612) and a nitrogen compressor (613); A nitrogen compressor (613) is arranged on the top cover (11); The first pipeline (611) and the second pipeline (612) have the same structure. One side of the first pipeline (611) and the second pipeline (612) are connected to the nitrogen compressor (613), and the other side of the first pipeline (611) and the second pipeline (612) pass through the heat dissipation box (1) and are connected to the spray head (63).

3. The irradiated electron linear accelerator with a heat dissipation structure according to claim 1, characterized in that: The sliding device (62) comprises a threaded rod (621), a smooth rod (622), a sliding frame (623) and a driver (624); The threaded rod (621) is rotatably mounted on the heat dissipation box (1); The smooth rod (622) has a pair and is arranged on both sides of the threaded rod (621); The sliding frame (623) is slidably arranged on the threaded rod (621); The driver (624) is arranged on the heat dissipation box (1), and the output end of the driver (624) is drivingly connected to the threaded rod (621).

4. The irradiated electron linear accelerator with a heat dissipation structure according to claim 1, characterized in that: The spray head (63) is funnel-shaped, and a plurality of spray holes are arranged at the bottom of the spray head (63).

5. The irradiated electron linear accelerator with a heat dissipation structure according to claim 1, characterized in that: The inspection mechanism (3) comprises a sealing plate (31) and a sliding mechanism (32); The sliding mechanism (32) is arranged on the top cover (11); The sealing plate (31) is slidably arranged on the sliding mechanism (32).

6. The irradiated electron linear accelerator with a heat dissipation structure according to claim 5, characterized in that: The sliding mechanism (32) comprises a sliding block (321); The number of the sliding blocks (321) is a pair and they are arranged on both sides of the sealing plate (31); and a sliding groove (322) for the sliding blocks (321) to slide is arranged on the heat dissipation box (1).

7. The irradiated electron linear accelerator with a heat dissipation structure according to claim 5, characterized in that: A handle (311) is provided on the top of the sealing plate (31), and a sheath is provided outside the handle (311).

8. The irradiated electron linear accelerator with a heat dissipation structure according to claim 7, characterized in that: The sheath is made of rubber.

Images