A beam collecting bucket with cooling structure and cooling method thereof

Abstract

The present invention discloses a beam collecting barrel with a cooling structure and a cooling method thereof, wherein the collecting barrel comprises a base; a barrel body, which is mounted on the base, and comprises an end cavity and a tail cavity connected to the end cavity; the tail cavity comprises, from the inside to the outside, an energy absorbing layer, which is made of graphite and is in an inverted trapezoidal shape; a heat dissipation layer, which is made of copper and is in a storage cavity shape, and is wrapped around the periphery and the tail end of the energy absorbing layer; a shell, which is wrapped around the heat dissipation layer; and a circulation pipe group is arranged in the heat dissipation layer. The present invention can reliably absorb the energy generated by the electron beam bombarding its surface by designing a high melting point graphite material as the part receiving beam bombardment, and can withstand the thermal stress and fatigue stress generated by long-term work, and use the copper base with high thermal conductivity to transfer heat to the circulation pipe group, and complete the heat dissipation of the heat dissipation layer by connecting the cooling pipe group, and then complete the heat dissipation work of the entire rear cavity.

Description

Technical Field

[0001] The invention relates to a beam collecting bucket, in particular to a beam collecting bucket with a cooling structure and a cooling method thereof. Background Art

[0002] The discovery of the Higgs boson in the Large Hadron Collider has inspired the Chinese physics community to build a circular electron-positron collider to better discover future physics "beyond the standard model."

[0003] The High Energy Circular Electron Collider consists of three parts: a linear accelerator, an energy enhancer and a storage ring.

[0004] After being produced, positrons and electrons are accelerated by a linear accelerator and then transported to energy enhancers and storage rings for further acceleration and collision.

[0005] The linear accelerator has the nature of continuous operation. When the beam cannot or does not need to be fully injected into the energy enhancer, a special beam collection device, namely the beam collection bucket, needs to be designed.

[0006] The beam collecting barrel is an important component of the target chamber system. It is located at the rear end of the target system. Its main function is to collect the remaining beam injected into the target chamber by the particle accelerator. In the extreme case that the target is pierced, the beam is collected to ensure that other components of the system are not damaged. The beam collecting barrel will generate high temperature when it absorbs energy under beam bombardment.

[0007] Therefore, providing a beam collecting bucket with heat dissipation function is a problem that needs to be solved at present. Summary of the invention

[0008] Purpose of the invention: To provide a beam collecting bucket with a cooling structure and a cooling method thereof, so as to solve the above-mentioned problems existing in the prior art.

[0009] Technical solution: A beam collecting barrel with a cooling structure, comprising:

[0010] Pedestal;

[0011] The barrel body is installed on the base, and comprises an end cavity and a tail cavity connected to the end cavity;

[0012] The tail cavity includes from inside to outside

[0013] The energy absorbing layer is made of graphite and is in an inverted trapezoidal shape;

[0014] The heat dissipation layer is made of copper and is in the shape of a storage cavity, wrapping around the periphery and tail end of the energy absorption layer;

[0015] A shell, wrapped in the heat dissipation layer;

[0016] At least two cooling interfaces are provided on the heat dissipation layer;

[0017] A circulation pipe group is provided in the heat dissipation layer;

[0018] A cooling pipe group is arranged in the end cavity, and the cooling pipe group is connected with the circulation pipe group through a cooling interface.

[0019] By designing the energy absorbing layer into an inverted trapezoid, on the one hand, the contact area with the heat dissipation layer is increased to improve the heat dissipation effect, and on the other hand, the contact surface between the heat dissipation layer and the energy absorbing layer is relatively stable when welding the heat dissipation layer and the energy absorbing layer, so that the contact surface is uniform during welding;

[0020] Since the thermal expansion coefficients of the energy absorbing layer and the heat dissipating layer are different, if the heat dissipating layer and the energy absorbing layer are designed as cylinders, the heat dissipating layer is prone to expand during welding.

[0021] By designing a high melting point graphite material as the part that receives beam bombardment, it can reliably absorb the energy generated by the electron beam bombarding its surface, and can withstand the thermal stress and fatigue stress generated by long-term work. The high thermal conductivity copper base is used to transfer heat to the circulation tube group, and the heat dissipation of the heat dissipation layer is completed by connecting the cooling tube group, thereby completing the heat dissipation work of the entire rear cavity.

[0022] In a further embodiment, the circulation pipe group includes

[0023] The partition cavity is composed of an inlet cavity and an outlet cavity that are not interconnected;

[0024] The scattered inlet channels are connected to the inlet cavity, and a total of four groups are designed;

[0025] The outlet channel is connected with the outlet cavity, and a total of four groups are designed;

[0026] The communicating cavity is connected with the diffusion inlet channel and the diffusion outlet channel.

[0027] The inlet and outlet channels may be placed in multiple groups according to heat dissipation requirements.

[0028] By dividing one into four, the installation volume of the end cavity is reduced. If four sets of water inlet pipes and four sets of water outlet pipes are installed, although the heat dissipation effect may be increased, the assembly volume of the end cavity is increased, which may easily affect the beam collection. At the same time, the addition of four sets of water inlet pipes and four sets of water outlet pipes in the front cavity is not beautiful enough.

[0029] It is not necessary to design a connecting cavity, and each group of diffusion channels can be directly connected to the diffusion channels. When this situation is adopted, when the heat absorption of each diffusion channel is uneven, it is easy for some diffusion tubes to absorb a lot of heat. At this time, the water temperature in the diffusion tube is relatively high. When passing through the diffusion channel, once the temperature of the heat dissipation layer is lower than the water temperature in the diffusion tube, reverse heat absorption is likely to occur, affecting the heat dissipation effect (this situation is extremely rare, and is easy to occur when the diffusion channels are unevenly distributed).

[0030] The present invention designs the connecting cavity mainly to stir the water flows that absorb heat in each diffusion channel evenly in the connecting cavity, so as to avoid reverse heat absorption when the diffusion channel absorbs heat unevenly during the entry process.

[0031] In a further embodiment, the inlet cavity and the outlet cavity are respectively communicated with a cooling interface.

[0032] In a further embodiment, the cooling tube group includes a water inlet pipe and a water outlet pipe;

[0033] The water inlet pipe is connected to the inlet cavity through a cooling interface;

[0034] The water outlet pipe is connected to the outlet cavity through a cooling interface;

[0035] The cooling interfaces are all threaded;

[0036] The present invention has four groups of cooling interfaces, two of which are used as process ports and the other two are used for heat dissipation. Threads are tapped internally and pressure plates are symmetrically installed through the cooling interfaces and threads when the heat dissipation layer and the shell are welded to relatively fix the shell and the heat dissipation layer.

[0037] At the same time, due to the different thermal expansion coefficients of the heat dissipation layer and the energy absorbing layer, deformation is likely to occur during welding. The pressure plate is symmetrically installed through the cooling interface and the thread, and a spring or other elastic mechanism is designed inside to give the heat dissipation layer and the energy absorbing layer a pre-tightening force to avoid deformation of the energy absorbing layer and the heat dissipation layer during welding.

[0038] In a further embodiment, a beam conduit is provided in the end cavity;

[0039] The beam pipeline is connected to the energy absorbing layer.

[0040] In a further embodiment, the outermost layer of each of the end cavities is provided with a shell.

[0041] In a further embodiment, the base includes a bottom plate, a plurality of support frames and a fastening frame arranged on the bottom plate;

[0042] The fastening frame clamps the barrel body.

[0043] A cooling method for a beam collecting bucket having a cooling structure, comprising:

[0044] Step 1: The beam passes through the beam pipe and hits the energy absorbing layer, generating high temperature. At this time, the heat dissipation layer absorbs the high temperature on the energy absorbing layer;

[0045] Step 2: Inject cooling water from the water inlet pipe, and diffuse the cooling water through the inlet cavity to the four groups of diffusion channels to absorb the high temperature in the heat dissipation layer;

[0046] Step 3: After absorbing the high temperature, the cooling water is mixed and redistributed to the dissipation channel through the connecting cavity, and the temperature in the heat dissipation layer is absorbed again;

[0047] Step 4: The cooling water is discharged to the outlet cavity through the outlet channel and then discharged through the outlet pipe.

[0048] Beneficial effects: The present invention discloses a beam collecting barrel with a cooling structure and a cooling method thereof. By designing a high-melting-point graphite material as the part receiving beam bombardment, the energy generated by the electron beam bombarding its surface can be reliably absorbed, and the thermal stress and fatigue stress generated by long-term operation can be withstood. The heat is transferred to the circulation pipe group by using the high thermal conductivity copper base, and the heat dissipation of the heat dissipation layer is completed by connecting the cooling pipe group, thereby completing the heat dissipation work of the entire rear cavity. BRIEF DESCRIPTION OF THE DRAWINGS

[0049] Figure 1 It is a schematic diagram of the structure of the present invention.

[0050] Figure 2 It is a schematic diagram of the barrel structure of the present invention.

[0051] Figure 3 It is a schematic diagram of the internal structure of the barrel of the present invention.

[0052] Figure 4 It is a schematic diagram of the energy absorbing layer structure of the present invention.

[0053] Figure 5 It is a schematic diagram of the structure of the dispersion outlet and dispersion inlet of the present invention.

[0054] Figure 6 It is a schematic diagram of the cooling interface of the present invention.

[0055] Figure 7 It is a schematic diagram of the base of the present invention.

[0056] Figure 8 It is a schematic diagram of the cooling tube group and the circulation tube group of the present invention. Description of the drawings:

[0058] 1. Base; 11. Bottom plate; 12. Fastening frame; 13. Support frame;

[0059] 2. barrel; 21. tail cavity; 211. heat dissipation layer; 212. energy absorption layer; 214. cooling interface;

[0060] 22. End cavity; 23. Beam pipe; 24. Cooling tube group; 241. Water inlet pipe; 242. Diffusion inlet channel; 243. Connecting cavity; 244. Diffusion outlet channel; 245. Inlet cavity; 246. Outlet cavity; 247. Water outlet pipe. DETAILED DESCRIPTION

[0061] The present application relates to a beam collecting bucket with a cooling structure and a cooling method thereof, which will be explained in detail through specific implementation methods below.

[0062] A beam collecting bucket with a cooling structure, comprising:

[0063] Base 1;

[0064] The base 1 includes a bottom plate 11, a plurality of support frames 13 and a fastening frame 12 arranged on the bottom plate 11;

[0065] The fastening frame 12 clamps the barrel body 2 .

[0066] The barrel body 2 is mounted on the base 1 and includes an end cavity 22 and a tail cavity 21 connected to the end cavity 22;

[0067] The tail cavity 21 includes from the inside to the outside

[0068] The energy absorbing layer 212 is made of graphite and is in an inverted trapezoidal shape;

[0069] The heat dissipation layer 211 is made of copper and is in the shape of a receiving cavity, wrapping around the periphery and the end of the energy absorption layer 212;

[0070] A housing, wrapped in the heat dissipation layer 211;

[0071] At least two cooling interfaces 214 are provided on the heat dissipation layer 211;

[0072] The heat dissipation layer 211 is provided with a circulation pipe group;

[0073] A cooling tube group 24 is provided in the end cavity 22 , and the cooling tube group 24 is connected to the circulation tube group through a cooling interface 214 .

[0074] By designing the energy absorbing layer 212 to be an inverted trapezoid, on the one hand, the contact area with the heat dissipation layer 211 is increased to improve the heat dissipation effect, and on the other hand, the contact surface between the heat dissipation layer 211 and the energy absorbing layer 212 is relatively stable when the heat dissipation layer 211 and the energy absorbing layer 212 are welded, so that the contact surface is uniform during welding;

[0075] Since the thermal expansion coefficients of the energy absorbing layer 212 and the heat dissipating layer 211 are different, if the heat dissipating layer 211 and the energy absorbing layer 212 are designed as cylinders, the heat dissipating layer 211 is prone to expand during welding.

[0076] By designing a high melting point graphite material as the part that receives beam bombardment, it can reliably absorb the energy generated by the electron beam bombarding its surface, and can withstand the thermal stress and fatigue stress generated by long-term operation. The high thermal conductivity copper base is used to transfer heat to the circulation tube group, and the heat dissipation of the heat dissipation layer 211 is completed by connecting the cooling tube group 24, thereby completing the heat dissipation work of the entire back cavity.

[0077] The circulation pipe group includes

[0078] The partition cavity is composed of an inlet cavity 245 and an outlet cavity 246 which are not interconnected;

[0079] The diffuser inlet 242 is connected to the inlet cavity 245, and a total of four groups are designed;

[0080] The dispersing channel 244 is connected to the outlet cavity 246, and a total of four groups are designed;

[0081] The communication cavity 243 is communicated with the diffusion inlet channel 242 and the diffusion outlet channel 244 .

[0082] The inlet channels 242 and outlet channels 244 may be placed in multiple groups according to heat dissipation requirements.

[0083] By dividing one into four, the installation volume of the end cavity 22 is reduced. If four groups of water inlet pipes 241 and four groups of water outlet pipes 247 are installed, although the heat dissipation effect may be increased, the assembly volume of the end cavity 22 is increased, which may easily affect the beam collection. At the same time, the addition of four groups of water inlet pipes 241 and four groups of water outlet pipes 247 to the front cavity is not aesthetically pleasing.

[0084] It is not necessary to design the connecting cavity 243, and each group of the diffusion channels 242 and the diffusion channels 244 can be directly connected. When this situation is adopted, when the heat absorption of each diffusion channel 242 is uneven, it is easy for some diffusion tubes to absorb a large amount of heat. At this time, the water temperature in the diffusion tube is relatively high. When passing through the diffusion channel 244, once the temperature of the heat dissipation layer 211 is lower than the water temperature in the diffusion tube, reverse heat absorption is likely to occur, affecting the heat dissipation effect (this situation is extremely rare, and is likely to occur when the diffusion channels 242 are unevenly distributed).

[0085] The present invention designs the connecting cavity 243 mainly to mix the water flows that absorb heat in each diffusion channel 242 in the connecting cavity 243 to avoid reverse heat absorption when the diffusion channel 242 absorbs heat unevenly during the entry process.

[0086] The inlet cavity 245 and the outlet cavity 246 are respectively communicated with the cooling interface 214 .

[0087] In a further embodiment, the cooling pipe group 24 includes a water inlet pipe 241 and a water outlet pipe 247;

[0088] The water inlet pipe 241 is connected to the inlet cavity 245 through the cooling interface 214;

[0089] The water outlet pipe 247 is connected to the outlet cavity 246 through the cooling interface 214;

[0090] The cooling interface 214 is threaded;

[0091] The cooling interface 214 of the present invention is designed with four groups, two of which are used as process ports, and the other two are used for heat dissipation. Through internal tapping of threads, when the heat dissipation layer 211 and the shell are welded, the pressure plate is symmetrically installed through the cooling interface 214 and the threads to relatively fix the shell and the heat dissipation layer 211.

[0092] At the same time, due to the different thermal expansion coefficients of the heat dissipation layer 211 and the energy absorbing layer 212, deformation is likely to occur during welding. The pressure plate is symmetrically installed through the cooling interface 214 and the thread and a spring or other elastic mechanism is designed inside to give the heat dissipation layer 211 and the energy absorbing layer 212 a pre-tightening force to prevent the energy absorbing layer 212 and the heat dissipation layer 211 from deforming during welding.

[0093] A beam pipe 23 is provided in the end cavity 22;

[0094] The beam pipe 23 is connected to the energy absorbing layer 212 .

[0095] In a further embodiment, the outermost layers of the end cavity 22 and the tail cavity 21 are both provided with a shell.

[0096] Description of the working principle: When the beam in the beam pipe 23 bombards the energy absorbing layer 212, the energy absorbing layer 212 absorbs energy and generates high temperature. At this time, the heat dissipation layer 211 absorbs the high temperature on the energy absorbing layer 212; cooling water is injected from the water inlet pipe 241, and the cooling water diffuses into the four groups of diffusion channels 242 through the inlet cavity 245 to absorb the high temperature in the heat dissipation layer 211; after absorbing the high temperature, the cooling water is mixed and redistributed to the diffusion channel 244 through the connecting cavity 243, and absorbs the temperature in the heat dissipation layer 211 again; the cooling water is discharged to the outlet cavity 246 through the diffusion channel 244, and discharged through the water outlet pipe 247.

[0097] The preferred embodiments of the present invention are described in detail above in conjunction with the accompanying drawings. However, the present invention is not limited to the specific details in the above embodiments. Within the technical concept of the present invention, various equivalent transformations can be made to the technical scheme of the present invention, and these equivalent transformations all belong to the protection scope of the present invention.

Claims

1. A beam collecting bucket with a cooling structure, comprising: Base (1); The barrel body (2) is mounted on the base (1), and comprises an end cavity (22) and a tail cavity (21) connected to the end cavity (22); Characterized in that the tail cavity (21) includes, from inside to outside, An energy absorbing layer (212) made of graphite; The heat dissipation layer (211) is made of copper and is in the shape of a storage cavity, wrapping around the periphery and tail end of the energy absorption layer (212); A housing, wrapped around the heat dissipation layer (211); At least two cooling interfaces (214) are provided on the heat dissipation layer (211); A circulation pipe group is provided in the heat dissipation layer (211); A cooling tube group (24) is provided in the end cavity (22), and the cooling tube group (24) is connected to the circulation tube group via a cooling interface (214).

2. The beam collecting bucket with a cooling structure according to claim 1, characterized in that: The circulation pipe group comprises: The partition cavity is composed of an inlet cavity (245) and an outlet cavity (246) which are not interconnected; The diffuser inlet channel (242) is connected to the inlet cavity (245), and a total of four groups are designed; The dispersion channel (244) is connected to the outlet cavity (246), and a total of four groups are designed; The communication cavity (243) is communicated with the dispersion inlet channel (242) and the dispersion outlet channel (244).

3. The beam collecting bucket with a cooling structure according to claim 2, characterized in that: The inlet cavity (245) and the outlet cavity (246) are respectively in communication with the cooling interface (214).

4. The beam collecting bucket with a cooling structure according to claim 2, characterized in that: The cooling pipe group (24) comprises a water inlet pipe (241) and a water outlet pipe (247); The water inlet pipe (241) is in communication with the inlet cavity (245) via the cooling interface (214); The water outlet pipe (247) is in communication with the outlet cavity (246) via the cooling interface (214).

5. The beam collecting bucket with a cooling structure according to claim 1, characterized in that: A beam pipe (23) is provided in the end cavity (22); The beam pipe (23) is connected to the energy absorbing layer (212).

6. The beam collecting bucket with a cooling structure according to claim 1, characterized in that: The outermost layer of the end cavity (22) is provided with a shell.

7. The beam collecting bucket with a cooling structure according to claim 1, characterized in that: The base (1) comprises a bottom plate (11), a plurality of support frames (13) and a fastening frame (12) arranged on the bottom plate (11); The fastening frame (12) clamps the barrel body (2).

8. A cooling method for a four-fan device for beam detection according to any one of claims 1 to 7, characterized in that: Here are the steps: Step 1: The beam passes through the beam pipe (23) and hits the energy absorbing layer (212), generating high temperature. At this time, the heat dissipation layer (211) absorbs the high temperature on the energy absorbing layer (212); Step 2, inject cooling water from the water inlet pipe (241), and diffuse the cooling water into the four groups of diffusion channels (242) through the inlet cavity (245) to absorb the high temperature in the heat dissipation layer (211); Step 3, after absorbing the high temperature, the cooling water is mixed and redistributed to the dissipation channel (244) through the connecting cavity (243), and the temperature in the heat dissipation layer (211) is absorbed again; Step 4: The cooling water is discharged to the outlet cavity (246) through the outlet passage (244) and then discharged through the outlet pipe (247).

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