Removable electric deflector pole plate integrated with built-in cooling flow channel and diagnostic system and installation method of removable electric deflector pole plate

Abstract

The present application relates to the technical field of electric deflector in nuclear fusion device, and particularly relates to a detachable electric deflector plate integrated with built-in cooling flow channel and diagnosis system and a mounting method of the detachable electric deflector plate. The plate comprises a base fixedly installed in a vacuum chamber and a plate function unit detachably connected. The base is integrated with an electric interface, a coolant interface and a signal transmission interface; the plate function unit is internally provided with a three-dimensional spiral built-in cooling flow channel and a threaded hole diagnosis cavity extending from the back face to the inside; the base and the plate function unit are connected and locked through a bayonet type buckle, and are provided with a sealing structure. The present application realizes efficient cooling, real-time diagnosis and quick disassembly and maintenance of the plate, and improves the operation reliability and maintenance efficiency of the fusion device.

Description

Technical Field

[0001] This invention relates to the field of electric deflector technology in nuclear fusion devices, specifically to a detachable electric deflector plate integrating a built-in cooling channel and a diagnostic system, and a method for installing the detachable electric deflector plate. Background Technology

[0002] Existing electric deflector plates mostly adopt a fixed structure, and the cooling channels and diagnostic systems are usually set up separately. This results in the need for complete disassembly of the plates for maintenance, which is complex and time-consuming. At the same time, the cooling efficiency is limited, and it is impossible to integrate real-time monitoring of the plate thermal state, which affects the operational stability and lifespan of the fusion device. Summary of the Invention

[0003] The purpose of this invention is to provide an electric deflector plate that integrates a built-in cooling channel and a diagnostic system through a detachable connection design, thereby solving the problems of difficult maintenance and separation of cooling and diagnostic functions in existing plates, and improving the maintainability and functional integration of the plate.

[0004] Specifically, the present invention provides a detachable electric deflector plate integrating a built-in cooling channel and a diagnostic system, comprising:

[0005] The base is fixedly installed in the vacuum chamber and integrates an electrical interface, a coolant interface, and a signal transmission interface;

[0006] An electrode functional unit is detachably connected to the base;

[0007] The electrode functional unit is provided with a built-in cooling channel, which is a three-dimensional spiral channel.

[0008] The electrode functional unit is also provided with a diagnostic cavity, which is a threaded hole extending inward from the back of the electrode functional unit.

[0009] The base and the electrode functional unit are connected and locked together by a bayonet-type buckle, and a sealing structure is provided at the connection.

[0010] The electrode plate enhances heat exchange efficiency through a three-dimensional spiral built-in cooling channel, and the diagnostic cavity facilitates the installation of thermocouples or optical diagnostic windows for real-time monitoring of thermal status. The bayonet-type snap-fit ​​connection ensures quick installation and disassembly, while achieving electrical connection, coolant passage and ultra-high vacuum sealing, significantly reducing maintenance time and downtime losses.

[0011] The present invention also provides a method for installing detachable electric deflector plates, comprising the following steps:

[0012] The electrode functional unit is transferred into the vacuum chamber through the maintenance hatch on the wall of the vacuum chamber;

[0013] Operate the robotic arm to align the connector on the back of the electrode functional unit with the corresponding interface on the base;

[0014] An axial force is applied towards the base to initially press the connector of the electrode functional unit with the interface of the base, and to compress the sealing ring disposed between the mating planes of the two.

[0015] Rotate or pry the bayonet-type latch between the base and the electrode functional unit to the locked position to simultaneously achieve electrical connection, coolant passage connection and ultra-high vacuum sealing;

[0016] Perform leak detection and functional testing on the connected components. Attached Figure Description

[0017] Figure 1 Schematic diagram of a detachable electric deflector plate that integrates built-in cooling channels and a diagnostic system;

[0018] Figure 2 This is a schematic diagram of an internal spiral cooling channel;

[0019] Figure 3 This is a schematic diagram of the detachable deflection plate clip;

[0020] Figure 4 This is a schematic diagram of the surface of the arc-shaped electrode plate;

[0021] Figure 5 This is a schematic diagram of a diagnostic cavity threaded hole.

[0022] 1. Base; 2. Snap-fit; 3. Built-in cooling channel; 4. Diagnostic cavity; 5. Electrode functional unit; 6. Three-dimensional spiral turbulence structure; 7. Bayonet-type detachable module; 8. Continuous arc-shaped waveform surface; 9. Diagnostic cavity threaded hole. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention. Furthermore, the technical features involved in the various embodiments of this invention described below can be combined with each other as long as they do not conflict with each other.

[0024] Figure 1 This is a schematic diagram of the detachable electric deflector plate that integrates built-in cooling channels and a diagnostic system according to the present invention.

[0025] like Figure 1As shown, the electrode functional unit 5 is made of a high-strength, high-thermal-conductivity chromium-zirconium-copper (CuCrZr) alloy. This material has excellent high-temperature strength, good thermal conductivity, and resistance to arc erosion, making it the preferred material for high-heat-load components in fusion devices. It is integrally formed through precision casting and CNC milling. Figure 4 This is a schematic diagram of the surface of the arc-shaped electrode plate. Its working surface is a wave-shaped surface composed of continuous and smooth arc-shaped protrusions and depressions.

[0026] The back of the electrode functional unit 5 is equipped with a connector for quick docking with the electrical interface, coolant interface and signal transmission interface of the base 1.

[0027] like Figure 1 As shown, the working surface of the electrode plate is precision CNC machined into a continuous and smooth arc-shaped waveform. Figure 4 As shown, the continuous arc-shaped waveform surface 8 constitutes the working surface. This surface structure effectively increases the heat transfer area and optimizes the electric field distribution. Specific parameters are as follows: the waveform is defined by a sine curve, wave height H = 2 mm, wavelength P = 8 mm, and the ratio of wave height H to wavelength P, H / P, is 0.25, ranging from 0.2 to 0.6. All sharp corners are rounded to ensure electric field uniformity and suppress local field strength enhancement.

[0028] Figure 2 This is a schematic diagram of the built-in spiral cooling channel. The built-in cooling channel 3 adopts a three-dimensional spiral turbulence design and is completely embedded inside the electrode functional unit 5. Its spiral structure can be seen in [reference needed]. Figure 2 As shown in Figure 6, the three-dimensional spiral turbulent structure refers specifically to the inner wall of the built-in cooling channel, which is a three-dimensional spiral turbulent structure. This spiral shape forces the coolant to generate turbulence, thereby disrupting the boundary layer. The channel cross-section is arc-shaped, and the channel wall is equipped with turbulence-enhancing structures (such as protrusions or pits) to improve heat transfer efficiency. The channel is formed using precision drilling and vacuum brazing processes to ensure its sealing and reliability.

[0029] Figure 5 This is a schematic diagram of the threaded holes in the diagnostic cavity. The electrode functional unit 5 has multiple diagnostic system mounting cavities 4, extending inward from the back of the electrode body and configured as standard vacuum interfaces. The diagnostic cavity 4 has a threaded hole structure (its structure can be found in [reference needed]). Figure 5 This is used to mount one or more thermocouples or optical diagnostic windows to monitor the plate's operating temperature and thermal power in real time. The diagnostic cavity threaded hole 9 details the internal machining of the diagnostic cavity threaded hole, which is used to secure the thermocouple probe or seal the nut. This threaded hole can be closed with a nut when the diagnostic system is not configured and opened again when the diagnostic system is in use.

[0030] The base 1 is a semi-cylindrical structure, bolted to the vacuum chamber wall, and is machined from stainless steel. Base 1 provides a high-voltage electrical interface, a coolant interface, and a signal transmission interface, which connect to external systems via internal wiring. Base 1 is permanently welded to a predetermined opening in the vacuum chamber wall via a standard CF flange (e.g., CF100 specification).

[0031] Figure 3 This is a schematic diagram of the detachable deflection plate clip. The clip 2 (its structural schematic diagram is shown in...) Figure 3 It employs a bayonet-type detachable module for quick connection and locking of the electrode functional unit 5 and the base 1. For example... Figure 3 As shown in the detachable bayonet module 7, this bayonet-type detachable module is the specific locking execution unit of the latch 2, located on the base side, and achieves mechanical locking through rotation. An O-ring seal is provided between the mating plane of the base 1 and the electrode functional unit 5. When the latch 2 rotates to the locked position, the O-ring seal is compressed by applying axial pressure, thereby achieving an ultra-high vacuum seal. The latch 2 has four bayonets evenly distributed along the circumference. By rotating or moving the latch 2 to the locked position, both ultra-high vacuum sealing and reliable electrical connection and coolant passage can be achieved simultaneously.

[0032] The installation method includes the following steps:

[0033] S1: The electrode functional unit 5 is transferred to the vacuum chamber through the maintenance hatch on the vacuum chamber wall;

[0034] S2: Operate the robotic arm to align the connector on the back of the electrode functional unit 5 with the interface of the base 1;

[0035] S3: Apply axial force to initially press the two together;

[0036] S4: Rotate or move latch 2 to the locked position to complete the electrical connection, coolant passage and vacuum seal;

[0037] S5: Perform leak detection and functional testing (such as helium mass spectrometry leak detection), and complete the installation after confirming that there are no problems.

Claims

1. A detachable electric deflector plate integrating a built-in cooling channel and a diagnostic system, characterized in that, include: The base is fixedly installed in the vacuum chamber and integrates an electrical interface, a coolant interface, and a signal transmission interface; An electrode functional unit is detachably connected to the base; The electrode functional unit is provided with a built-in cooling channel, which is a three-dimensional spiral channel. The electrode functional unit is also provided with a diagnostic cavity, which is a threaded hole extending inward from the back of the electrode functional unit. The base and the electrode functional unit are connected and locked by a bayonet-type buckle, and a sealing structure is provided at the connection point; The working surface of the electrode functional unit is a continuous and smooth arc-shaped waveform surface; the waveform is defined by a sine curve, the ratio of wave height H to wavelength P H / P is 0.25, and this ratio is in the range of 0.2 to 0.6, and the wave height H = 2 mm and the wavelength P = 8 mm.

2. The detachable electric deflector plate according to claim 1, characterized in that, The electrode functional unit is made of chromium-zirconium-copper alloy.

3. The detachable electric deflector plate according to claim 1, characterized in that, The base is fixedly installed in the vacuum chamber via a CF flange.

4. The detachable electric deflector plate according to claim 1, characterized in that, The diagnostic cavity is used to install at least one of a thermocouple or an optical diagnostic window.

5. The detachable electric deflector plate according to claim 1, characterized in that, The built-in cooling channel and the diagnostic cavity are integrated within the internal space of the electrode functional unit, enabling the diagnostic cavity to monitor the thermal state regulated by the built-in cooling channel.

6. The detachable electric deflector plate according to claim 1, characterized in that, Multiple bayonet-type buckles are evenly distributed along the circumferential direction of the docking between the base and the electrode functional unit. When the buckles are rotated to the locking position, they can simultaneously provide mechanical force to lock the two together, and enable the electrical connection between the base and the electrode functional unit, the coolant passage, and the ultra-high vacuum seal through the compression sealing ring to take effect.

7. The detachable electric deflector plate according to claim 1, characterized in that, The sealing structure is an O-ring seal disposed between the base and the mating plane of the electrode functional unit.

8. The detachable electric deflector plate according to claim 1, characterized in that, The cross-section of the three-dimensional spiral flow channel is arc-shaped, and its inner wall is provided with a turbulence enhancement structure for breaking the coolant boundary layer and enhancing heat transfer.

9. A method for installing the detachable electric deflector plate according to any one of claims 1 to 8, characterized in that, Includes the following steps: The electrode functional unit is transferred into the vacuum chamber through the maintenance hatch on the wall of the vacuum chamber; Operate the robotic arm to align the connector on the back of the electrode functional unit with the corresponding interface on the base; An axial force is applied towards the base to initially press the connector of the electrode functional unit with the interface of the base, and to compress the sealing ring disposed between the mating planes of the two. Rotate or pry the bayonet-type latch between the base and the electrode functional unit to the locked position to simultaneously achieve electrical connection, coolant passage connection and ultra-high vacuum sealing; Perform leak detection and functional testing on the connected components.

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