Water pipeline structure for gradient amplifier cooling system

Abstract

The application discloses a water pipeline structure for a gradient amplifier cooling system, and relates to the technical field of cooling, which comprises a main pipeline, a water distribution block and a plurality of branch pipelines, a main channel and a plurality of branch channels are formed in the water distribution block, a plurality of valve cores are rotationally arranged in the water distribution block, a water supply channel, a micro-flow channel and a plurality of exhaust channels are formed in the valve core, and a plurality of exhaust holes are formed in the water distribution block. The valve core is provided with three rotating stations: when the working station, the water supply channel is connected with the main channel and the branch channel, and the cooling medium normally flows; when the cut-off station, the valve core blocks the water supply channel, the exhaust channel and the micro-flow channel, the branch pipeline can be replaced under the non-stop state; when the exhaust station, the micro-flow channel is connected with the main channel and the branch channel, and the exhaust channel exhausts the air in the branch channel through the exhaust hole. After the exhaust is completed, the valve core is rotated back to the working station, and the branch pipeline is restored to normal operation. Therefore, single-branch non-stop maintenance and replacement and automatic exhaust are realized.

Description

Technical Field

[0001] This application relates to the field of cooling technology, and in particular to a water pipe structure for a gradient amplifier cooling system. Background Technology

[0002] Gradient amplifiers are key components in medical imaging equipment, used to generate gradient magnetic fields in magnetic resonance imaging systems. Gradient amplifiers can amplify the small current signal of the gradient control unit to thousands of amperes of current sufficient to drive the gradient coil, enabling precise slice selection, frequency encoding and decoding, which is crucial for improving image quality.

[0003] Currently, high-power gradient amplifiers commonly employ water-cooling solutions. A typical water-cooling system includes a water pump, radiators, inlet pipes, outlet pipes, and multiple water-cooled plates. Each water-cooled plate is attached to the main heat-generating element of the gradient amplifier. Its inlet and outlet are connected in parallel to the main inlet and outlet pipes via branch pipes, typically using a water distribution block to switch between a single main path and multiple branches. During operation, the water pump drives the cooling medium to flow sequentially through the inlet pipes, each water-cooled plate, and the outlet pipes. After absorbing heat within the water-cooled plates, the medium is cooled by the radiators and then circulated back to the inlet pipes.

[0004] In the above structure, the cooling medium supply for all water-cooled plates relies on the same inlet and outlet water blocks, lacking independent isolation and control mechanisms between the branch water circuits. When a branch pipe leaks, becomes blocked, or requires planned replacement, maintenance personnel must stop the entire water-cooling system—i.e., shut down the water pump and drain the pipes—because it is impossible to independently disconnect that branch. This will cause the gradient amplifier to completely lose its heat dissipation capacity, forcing the equipment to shut down for an extended period, severely impacting clinical workflows and equipment availability. Summary of the Invention

[0005] To address the issue of having to interrupt water cooling system branch lines during replacement and maintenance, this application provides a water pipe structure for a gradient amplifier cooling system.

[0006] The water pipe structure for a gradient amplifier cooling system provided in this application adopts the following technical solution: A water piping structure for a gradient amplifier cooling system includes a main pipe, a distribution block, and multiple branch pipes. The distribution block contains a main channel and multiple branch channels. The main pipe connects to the main channel, and the branch pipes connect to the branch channels. Multiple valve cores are rotatably mounted within the distribution block. Each valve core has a water supply channel, with both ends connected to the main channel and the branch channels, respectively. The distribution block has multiple vent holes, and each valve core has an vent channel, with both ends connected to... The valve core is equipped with a micro-flow channel, and its two ends are connected to the main channel and the branch channel, respectively. When the valve core is rotated to the working position, the water supply channel is connected to the main channel and the branch channel, and the inner wall of the water distribution block blocks the vent channel and the micro-flow channel. When the valve core is rotated to the cut-off position, the inner wall of the water distribution block blocks the water supply channel, the vent channel and the micro-flow channel. When the valve core is rotated to the vent position, the vent channel is connected to the vent hole and the branch channel, the micro-flow channel is connected to the main channel and the branch channel, and the inner wall of the water distribution block blocks the water supply channel.

[0007] By adopting the above technical solution, the valve core has three rotating positions. When the valve core is in the working position, the water supply channel connects the main channel and the branch channel, allowing the cooling medium to flow between the main pipeline and the branch pipeline. When it is necessary to replace or repair a single branch pipeline, rotate the valve core at the corresponding branch pipeline to the cut-off position. The inner wall of the water distribution block blocks the water supply channel, the venting channel, and the micro-flow channel. At this time, the valve core blocks the main channel and the branch channel, preventing the cooling medium from flowing between the main pipeline and the branch pipeline. This allows the branch pipeline to be replaced or repaired without shutting down the cooling system. After the branch pipeline is replaced, rotate the valve core to the venting position. The micro-flow channel connects the main channel and the branch channel, allowing the cooling medium to slowly flow into the branch pipeline. The venting channel connects the vent hole and the branch channel, allowing the air in the branch channel to be discharged from the vent hole. After venting is completed, rotate the valve core back to the working position to complete the replacement or repair of the branch pipeline without shutting down the system.

[0008] Preferably, multiple rotating rods are rotatably arranged inside the water distribution block, and the bottom ends of the multiple rotating rods are respectively fixedly connected to the top walls of multiple valve cores. Each rotating rod has a turntable at its top end. The water distribution block is provided with three marks, which correspond to the working position, the cut-off position, and the venting position, respectively. The turntable is provided with an indicator arrow, which points to the mark.

[0009] By adopting the above technical solution, the turntable is rotated, and the turntable drives the valve core to rotate through the rotating rod, so that the valve core switches between three state positions. During the rotation of the turntable, the indicator arrow points to the mark, so that the staff can clearly distinguish the current state position of the valve core.

[0010] Preferably, a rotating ring is fixedly provided on the rotating rod, and a first slot, a second slot, and a third slot are spaced apart on the outer side wall of the rotating ring. The first slot, the second slot, and the third slot correspond to the working position, the cutting position, and the exhaust position, respectively. A mounting base is fixedly provided on the water distribution block, and a steel ball is provided inside the mounting base. A first elastic element is provided inside the mounting base, and the first elastic element pushes the steel ball to move into the slot of the rotating ring.

[0011] By adopting the above technical solution, when the rotating rod drives the valve core to rotate to a certain position, the rotating rod synchronously drives the rotating ring to rotate, and the first elastic element pushes the steel ball into the corresponding slot, producing a "click" sound and a clear positioning feel, while preventing the rotating rod from rotating on its own due to vibration.

[0012] Preferably, a limiting rod is slidably disposed within the mounting base along the axis of the rotating rod, and a second elastic element is disposed within the mounting base to abut against the limiting rod. A limiting ring is fixedly disposed on the rotating rod, and a limiting hole is formed within the limiting ring. When the valve core rotates to the cut-off position, the second elastic element pushes the limiting rod upward to slide into the limiting hole. An unlocking rod is slidably disposed within the turntable, and the unlocking rod is located directly above the limiting hole. The bottom end of the unlocking rod moves to abut against the top end of the limiting rod.

[0013] By adopting the above technical solution, when the valve core rotates from the working position to the cut-off position or from the venting position to the cut-off position, the rotating rod drives the limiting hole to rotate above the limiting rod through the limiting ring. The second elastic element pushes the limiting rod into the limiting hole, thereby limiting the rotation of the valve core. Only after the unlocking rod is used to push the limiting rod downwards and slide it out of the limiting hole can the limitation on the valve core be released. With this setting, the operator cannot operate the valve core to rotate directly from the working position to the venting position, nor can they rotate it directly from the venting position to the working position. The switch between the two positions must go through the cut-off position, and the operator can only switch the positions after unlocking the limiting rod in the cut-off position. This avoids the operator from venting directly without replacing the branch pipeline or resuming work without sufficient venting due to negligence.

[0014] Preferably, a water receiving pipe is provided on the side wall of the water distribution block, the water receiving pipe is connected to multiple vent holes, and an air outlet is formed at the top of the water receiving pipe.

[0015] By adopting the above technical solution, when venting, the air in the branch channel enters the water inlet pipe from the vent hole and then exits from the air outlet of the water inlet pipe. When all the air in the branch channel is vented, the cooling medium in the branch channel will enter the water inlet pipe from the vent hole. When the operator observes the presence of cooling medium at the air outlet, the valve core can be switched to the working position.

[0016] Preferably, the water inlet pipe is flared at the air outlet, and a detachable top cover is provided on the top of the water inlet pipe at the air outlet.

[0017] By adopting the above technical solution, the flared vent makes it easier for staff to detect the cooling medium in the water pipe in a timely manner, and the top cover on the vent serves to prevent dust and reduce the occurrence of external debris falling into the vent.

[0018] Preferably, the bottom end of the water inlet pipe has a drain outlet, and the water inlet pipe is detachably fitted with a bottom cover at the drain outlet.

[0019] By adopting the above technical solution, after the branch pipeline is replaced, cooling medium will remain in the water inlet pipe. At this time, the bottom cover can be removed, and the cooling medium in the water inlet pipe can be discharged through the drain outlet.

[0020] Preferably, the valve core has a pressure relief channel. When the valve core rotates from the working position to the cut-off position and the water supply channel is blocked by the inner wall of the water distribution block, the pressure relief channel connects the branch channel and the vent. When the valve core is in the cut-off position, the pressure relief channel is blocked by the inner wall of the water distribution block.

[0021] By adopting the above technical solution, during the process of the valve core rotating from the working position to the cut-off position, when the inner wall of the water distribution block blocks the water supply channel, the pressure relief channel connects the branch channel and the vent. At this time, the high-pressure cooling medium in the branch channel can flow into the water inlet pipe through the pressure relief channel, thereby relieving the pressure of the branch channel and preventing the cooling medium from splashing when the branch pipeline is disassembled.

[0022] Preferably, a fourth slot is provided on the outer side wall of the rotating ring. The fourth slot is located between the first slot and the second slot, and the depth of the fourth slot gradually increases from the first slot to the second slot.

[0023] By adopting the above technical solution, when the valve core rotates from the working position to the cut-off position, the steel ball moves from the first slot to the second slot in the fourth slot. When the steel ball moves to the deepest part of the fourth slot, the pressure relief channel opens to release pressure. When the steel ball moves from the fourth slot to the second slot, there will be a noticeable resistance, which makes it easy for the operator to release pressure appropriately according to the pressure in the branch channel. When the valve core rotates from the cut-off position to the working position, the steel ball moves from the second slot to the first slot in the fourth slot. The steel ball can move smoothly from the fourth slot to the first slot, which facilitates quick switching back to the working position.

[0024] In summary, this application includes at least one of the following beneficial technical effects: 1. Utilizing the three rotating positions of the valve core, when the valve core is in the working position, the water supply channel connects the main channel and the branch channel, allowing the cooling medium to flow between the main pipeline and the branch pipeline. When it is necessary to replace or repair a single branch pipeline, rotate the valve core at the corresponding branch pipeline to the cut-off position. The inner wall of the water distribution block blocks the water supply channel, the venting channel, and the micro-flow channel. At this time, the valve core blocks the main channel and the branch channel, preventing the cooling medium from flowing between the main pipeline and the branch pipeline. This allows the branch pipeline to be replaced or repaired without shutting down the cooling system. After the branch pipeline is replaced, rotate the valve core to the venting position. The micro-flow channel connects the main channel and the branch channel, allowing the cooling medium to slowly flow into the branch pipeline. The venting channel connects the vent hole and the branch channel, allowing the air in the branch channel to be discharged from the vent hole. After venting is completed, rotate the valve core back to the working position to complete the replacement or repair of the branch pipeline without shutting down the system. 2. With the help of steel balls and slots, when the rotating rod drives the valve core to a certain position, the rotating rod synchronously drives the rotating ring to rotate. The first elastic element pushes the steel ball into the corresponding slot, producing a "click" sound and a clear positioning feel, while preventing the rotating rod from rotating on its own due to vibration. 3. By using a limit rod, when the valve core rotates from the working position to the cut-off position or from the venting position to the cut-off position, the rotating rod drives the limit hole to rotate above the limit rod through the limit ring. The second elastic element pushes the limit rod into the limit hole, thereby limiting the rotation of the valve core. Only after the unlocking rod is used to push the limit rod down and slide it out of the limit hole can the limit on the valve core be released. In this way, the operator cannot operate the valve core to rotate directly from the working position to the venting position, nor can the operator operate it to rotate directly from the venting position to the working position. The switching between the two positions must go through the cut-off position, and the operator can only switch the positions after unlocking the limit rod in the cut-off position. This avoids the operator from directly venting without replacing the branch pipeline or resuming work without sufficient venting due to negligence. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of the water pipeline in this application; Figure 2 This is an overall structural cross-sectional view of the water pipeline structure in this application; Figure 3 This is a cross-sectional view of the overall structure of the water pipeline in this application, to highlight the valve core; Figure 4 For this application Figure 3 Enlarged view of point A in the middle; Figure 5 This is a cross-sectional view of the overall structure of the water pipeline in this application, to highlight the vent hole; Figure 6 This is a cross-sectional view of the overall structure of the water pipeline in this application, to highlight the microflow channel and the venting channel; Figure 7 For this application Figure 6 Enlarged view of point B in the middle; Figure 8 This is a partial exploded view of the water pipeline structure in this application; Figure 9 This is a top view of part of the water pipeline structure in this application.

[0026] Reference numerals: 1. Main pipe; 2. Diverter block; 3. Branch pipe; 4. Main channel; 5. Branch channel; 6. Valve core; 7. Water supply channel; 8. Vent hole; 9. Vent channel; 10. Microflow channel; 11. Rotating rod; 12. Turntable; 13. Mark; 14. Indicating arrow; 15. Rotating ring; 16. First slot; 17. Second slot; 18. Third slot; 19. Fourth slot; 20. Mounting base; 21. First elastic element; 22. Limiting rod; 23. Second elastic element; 24. Limiting ring; 25. Limiting hole; 26. Unlocking rod; 27. Water inlet pipe; 28. Air outlet; 29. ​​Top cover; 30. Drain outlet; 31. Bottom cover; 32. Pressure relief channel; 33. Steel ball. Detailed Implementation

[0027] The following is in conjunction with the appendix Figures 1-9 This application will be described in further detail.

[0028] This application discloses a water pipe structure for a gradient amplifier cooling system.

[0029] Reference Figure 1 and Figure 2 A water pipe structure for a gradient amplifier cooling system includes a main pipe 1, a water distribution block 2, and four branch pipes 3. A main channel 4 is formed in the middle of the top wall of the water distribution block 2, and the end of the main pipe 1 is installed in the main channel 4. Four branch channels 5 are formed at intervals on the bottom wall of the water distribution block 2, and the ends of the four branch pipes 3 are respectively installed in the four branch channels 5.

[0030] Reference Figure 2 , Figure 3 and Figure 4 Four valve cores 6 are rotatably installed inside the water distribution block 2, with the bottom ends of the four valve cores 6 respectively adapted to the top of the four branch channels 5. Each valve core 6 has a water supply channel 7, an air vent channel 9, and a micro-flow channel 10 spaced apart. The water supply channel 7, air vent channel 9, and micro-flow channel 10 are not interconnected and are all L-shaped, with the diameter of the water supply channel 7 being larger than the diameter of the air vent channel 9 and the micro-flow channel 10. The air vent channel 9 and the micro-flow channel 10 are symmetrically opened along the diameter direction of the valve core 6, with the water supply channel 7 located between the air vent channel 9 and the micro-flow channel 10. Air vents 8 are opened on the outer side of each of the four valve cores 6 in the water distribution block 2.

[0031] Each valve core 6 has a rotating rod 11 fixedly installed at the top center, and a turntable 12 fixedly installed at the top of the rotating rod 11. The valve core 6 has three rotation positions: working position, shut-off position, and venting position. The turntable 12 can drive the valve core 6 to rotate within the water distribution block 2 via the rotating rod 11, so that the valve core 6 can switch between the working position, shut-off position, and venting position in sequence.

[0032] Reference Figure 4 , Figure 5 and Figure 6 When valve core 6 is in the working position, the main channel 4 and branch channel 5 are connected through the water supply channel 7 inside valve core 6, while the exhaust channel 9 and microflow channel 10 are closed, allowing the cooling medium to circulate normally. When a branch pipe 3 needs replacement or maintenance, the corresponding valve core 6 is rotated 45° to the cut-off position. The valve core 6 fits against the inner wall of the water distribution block 2, simultaneously sealing the water supply channel 7, exhaust channel 9, and microflow channel 10, cutting off the medium flow between the main channel 4 and branch channel 5. This allows for the disassembly and replacement of branch pipe 3 without shutting down the cooling system. After replacing branch pipe 3, valve core 6 is rotated another 45° to the exhaust position. The microflow channel 10 connects the main channel 4 and branch channel 5 with a limited flow, allowing the cooling medium to slowly inject into branch pipe 3. Simultaneously, the exhaust channel 9 discharges the gas in branch channel 5 through the exhaust port 8. After venting, valve core 6 is rotated back to the working position, and branch pipe 3 returns to normal operation, completing the maintenance and replacement operation without shutting down the system.

[0033] Reference Figure 7 , Figure 8 and Figure 9 Each rotating rod 11 is fixedly mounted with a rotating ring 15. The outer wall of the rotating ring 15 has a first slot 16, a second slot 17, and a third slot 18 spaced 45° apart. The first slot 16, the second slot 17, and the third slot 18 correspond to the working position, the cut-off position, and the venting position, respectively. Four mounting seats 20 are fixedly mounted on the top wall of the water distribution block 2, each corresponding to one of the four rotating rings 15. Steel balls 33 are slidably mounted on the side wall of the mounting seat 20 along the diameter direction of the rotating rod 11. A first elastic element 21 is installed inside the mounting seat 20. In this application, the first elastic element 21 can be a spring, and it can push the steel ball 33 into the slot. When the valve core 6 rotates 45° forward, it switches from the working position to the cut-off position; when the valve core 6 rotates 45° forward again, it switches from the cut-off position to the venting position; when the valve core 6 rotates 90° in the reverse direction, it switches from the venting position to the working position.

[0034] When the rotating rod 11 drives the valve core 6 to rotate to a certain position, the rotating ring 15 rotates synchronously. Under the action of the first elastic element 21, the steel ball 33 is inserted into the corresponding slot, producing a clear "click" sound and clear tactile feedback. At the same time, the cooperation between the slot and the steel ball 33 provides positioning and holding force to prevent the rotating rod 11 and the valve core 6 from rotating on their own due to equipment vibration or accidental contact, ensuring that the valve core 6 stays stably at the required position.

[0035] Reference Figure 3 The turntable 12 is marked with indicator arrows 14, and the top wall of the water distribution block 2 is marked with three marks 13 at intervals around each rotating rod 11. The three marks 13 correspond to the working position, the cut-off position, and the venting position, respectively. When the turntable 12 is rotated, the valve core 6 rotates synchronously with the turntable 12 and points to each status mark 13 in sequence, thereby realizing a visual indication of the current working position of the valve core 6, which makes it easy for the operator to accurately identify and confirm the working status of the valve core 6.

[0036] Reference Figure 1 , Figure 3 and Figure 4 A ring-shaped water inlet pipe 27 is fixedly installed on the outer periphery of the water distribution block 2, and the inner side of the water inlet pipe 27 is connected to four vent holes 8. A flared vent 28 is formed at the top of the water inlet pipe 27, and a top cover 29 is threadedly and detachably installed at the vent 28. A drain outlet 30 is formed at the bottom of the water inlet pipe 27, and a bottom cover 31 is threadedly and detachably installed at the drain outlet 30.

[0037] During the exhaust process, air in branch channel 5 enters water inlet pipe 27 through exhaust port 8 and is eventually discharged to the atmosphere from outlet 28 of water inlet pipe 27. Once the air in branch channel 5 is completely exhausted, the cooling medium enters water inlet pipe 27 from exhaust port 8 and flows to outlet 28. The operator can determine whether the exhaust process is complete by observing whether there is a continuous flow of medium from the flared outlet 28, and accordingly switch valve core 6 back to the operating position.

[0038] In addition, a top cover 29 is detachably installed at the air outlet 28 to seal the air outlet 28 when not in exhaust mode, serving to prevent dust and foreign objects from entering and avoiding external impurities from clogging the exhaust passage 9 or contaminating the cooling medium. After the branch pipe 3 is replaced and the system returns to normal operation, some cooling medium will usually remain in the water inlet pipe 27. After removing the bottom cover 31, the residual medium in the water inlet pipe 27 can be completely drained through the drain outlet 30.

[0039] Reference Figure 4The valve core 6 has a pressure relief channel 32, which is located on the side of the exhaust channel 9 away from the main channel 4, and the angle between the pressure relief channel 32 and the exhaust channel 9 is greater than 45°. The diameter of the pressure relief channel 32 is smaller than the diameter of the water supply channel 7. The pressure relief channel 32 is L-shaped and is not connected to the water supply channel 7, the exhaust channel 9, or the micro-flow channel 10.

[0040] Reference Figure 4 , Figure 8 and Figure 9 A fourth slot 19 is provided on the outer side wall of the rotating ring 15. The fourth slot 19 is located between the first slot 16 and the second slot 17. The depth of the fourth slot 19 gradually increases from the first slot 16 to the second slot 17. The side of the fourth slot 19 with a smaller depth is connected to the first slot 16, and the side of the fourth slot 19 with a larger depth is not connected to the second slot 17.

[0041] As the valve core 6 rotates from the working position to the cut-off position, the inner wall of the water distribution block 2 gradually blocks the water supply channel 7. Simultaneously, the steel ball 33 moves from the first slot 16 along the fourth slot 19 towards the second slot 17. When the steel ball 33 reaches the deepest point at the end of the fourth slot 19, the water supply channel 7 is closed, and the pressure relief channel 32 opens, connecting the branch channel 5 with the vent 8. At this time, the high-pressure cooling medium accumulated in the branch channel 5 flows into the water inlet pipe 27 through the pressure relief channel 32, achieving automatic pressure relief and preventing media splashing when disassembling the branch pipe 3. As the steel ball 33 continues to move from the fourth slot 19 to the second slot 17, the contour of the fourth slot 19 produces a noticeable resistance and tactile feedback, allowing the operator to control the pressure relief duration based on the actual pressure in the branch channel 5, achieving controllable pressure relief. When the valve core 6 returns from the cut-off position to the working position, the steel ball 33 moves from the second slot 17 through the fourth slot 19 towards the first slot 16. Since the guide surfaces of the fourth slot 19 and the first slot 16 are smooth slopes, the steel ball 33 can pass smoothly without obvious obstruction, thus facilitating a quick switch back to the working position and taking into account both the controllability of the pressure relief stage and the efficiency of the reset operation.

[0042] Reference Figure 7 and Figure 8 A limiting rod 22 is slidably installed inside the mounting base 20 along the axis of the rotating rod 11. A second elastic element 23 is installed inside the mounting base 20. In this application, the second elastic element 23 can be a spring, and the second elastic element 23 pushes the limiting rod 22 to move upward. A limiting ring 24 is fixedly installed on the rotating rod 11, and the diameter of the limiting ring 24 is larger than the diameter of the rotating ring 15. A limiting hole 25 is formed inside the limiting ring 24. An unlocking rod 26 is slidably installed inside the turntable 12 along its own axis, and the bottom end of the unlocking rod 26 is slidably inserted into the limiting hole 25.

[0043] When the valve core 6 rotates from the working position to the cut-off position, or from the venting position to the cut-off position, the rotating rod 11 drives the limiting hole 25 to rotate directly above the limiting rod 22 via the limiting ring 24. At this time, the second elastic element 23 pushes the limiting rod 22 upward into the limiting hole 25, thereby locking the rotation of the valve core 6. To release the limit, the unlocking rod 26 must be used to push the limiting rod 22 downward, causing the limiting rod 22 to slide out of the limiting hole 25 before the valve core 6 can continue to rotate.

[0044] The operator cannot directly rotate valve core 6 from the working position to the venting position, nor can they directly rotate it from the venting position to the working position. Switching between the two positions requires passing through the cut-off position, and at the cut-off position, the limit switch must first be released via unlocking lever 26 before proceeding to the next position transition. This effectively avoids two types of erroneous operations caused by operational negligence: firstly, directly entering the venting position without completing the replacement of branch pipe 3; secondly, directly returning to the working position without sufficient venting. This significantly improves operational safety and reliability.

[0045] The implementation principle of a water pipe structure for a gradient amplifier cooling system according to an embodiment of this application is as follows: When the valve core 6 is in the working position, the main channel 4 and the branch channel 5 are connected through the water supply channel 7 inside the valve core 6, while the exhaust channel 9 and the microflow channel 10 are closed, allowing the cooling medium to circulate normally. When a branch pipe 3 needs to be replaced or repaired, the valve core 6 corresponding to that branch is rotated to the cut-off position. The valve core 6 body fits with the inner wall of the water distribution block 2, simultaneously sealing the water supply channel 7, the exhaust channel 9, and the microflow channel 10, cutting off the medium flow between the main channel 4 and the branch channel 5, thereby enabling the disassembly and replacement of the branch pipe 3 without shutting down the cooling system. After the branch pipe 3 is replaced, the valve core 6 is rotated to the exhaust position. The microflow channel 10 connects the main channel 4 and the branch channel 5 with a limited flow, allowing the cooling medium to be slowly injected into the branch pipe 3; simultaneously, the exhaust channel 9 discharges the gas in the branch channel 5 through the exhaust hole 8. After the exhaust is completed, the valve core 6 is rotated back to the working position, and the branch pipe 3 resumes normal operation, completing the maintenance and replacement operation without shutting down the system.

[0046] The above are merely optional embodiments of this disclosure and are not intended to limit this disclosure. Various modifications and variations can be made to this disclosure by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this disclosure should be included within the scope of protection of this disclosure.

Claims

1. A water pipe structure for a gradient amplifier cooling system, comprising a main pipe (1), a distribution block (2), and multiple branch pipes (3), wherein a main channel (4) and multiple branch channels (5) are formed within the distribution block (2), the main pipe (1) is connected to the main channel (4), and the branch pipes (3) are connected to the branch channels (5), characterized in that: Multiple valve cores (6) are rotatably arranged inside the water distribution block (2). A water supply channel (7) is opened inside the valve core (6). The two ends of the water supply channel (7) are respectively connected to the main channel (4) and the branch channel (5). Multiple vent holes (8) are opened on the water distribution block (2). A vent channel (9) is opened inside the valve core (6). The two ends of the vent channel (9) are respectively connected to the branch channel (5) and the vent hole (8). A micro-flow channel (10) is arranged inside the valve core (6). The two ends of the micro-flow channel (10) are respectively connected to the main channel (4) and the branch channel (5). When the valve core (6) rotates to the working position, the water supply channel (7) connects the main channel (4) and the branch channel (5), and the inner wall of the water distribution block (2) blocks the exhaust channel (9) and the micro-flow channel (10). When the valve core (6) rotates to the cut-off position, the inner wall of the water distribution block (2) blocks the water supply channel (7), the exhaust channel (9) and the micro-flow channel (10). When the valve core (6) rotates to the exhaust position, the exhaust channel (9) connects the exhaust hole (8) and the branch channel (5), and the micro-flow channel (10) connects the main channel (4) and the branch channel (5). The inner wall of the water distribution block (2) blocks the water supply channel (7).

2. The water pipe structure for a gradient amplifier cooling system according to claim 1, characterized in that: Multiple rotating rods (11) are rotatably arranged inside the water distribution block (2). The bottom ends of the multiple rotating rods (11) are fixedly connected to the top walls of multiple valve cores (6). Each rotating rod (11) has a turntable (12) at its top. The water distribution block (2) has three marks (13), which correspond to the working position, the cut-off position, and the exhaust position, respectively. The turntable (12) has an indicator arrow (14) pointing to the mark (13).

3. The water pipe structure for a gradient amplifier cooling system according to claim 2, characterized in that: A rotating ring (15) is fixedly installed on the rotating rod (11). A first slot (16), a second slot (17), and a third slot (18) are spaced apart on the outer side wall of the rotating ring (15). The first slot (16), the second slot (17), and the third slot (18) correspond to the working position, the cut-off position, and the exhaust position, respectively. A mounting base (20) is fixedly installed on the water distribution block (2). A steel ball (33) is installed inside the mounting base (20). A first elastic element (21) is installed inside the mounting base (20). The first elastic element (21) pushes the steel ball (33) to move into the slot of the rotating ring (15).

4. The water pipe structure for a gradient amplifier cooling system according to claim 3, characterized in that: A limiting rod (22) is slidably arranged inside the mounting base (20) along the axis of the rotating rod (11). A second elastic element (23) is provided inside the mounting base (20) to abut against the limiting rod (22). A limiting ring (24) is fixedly arranged on the rotating rod (11). A limiting hole (25) is opened inside the limiting ring (24). When the valve core (6) rotates to the cut-off position, the second elastic element (23) pushes the limiting rod (22) to slide upward and insert into the limiting hole (25). An unlocking rod (26) is slidably arranged inside the turntable (12). The unlocking rod (26) is located directly above the limiting hole (25). The bottom end of the unlocking rod (26) moves to abut against the top end of the limiting rod (22).

5. The water pipe structure for a gradient amplifier cooling system according to claim 3, characterized in that: A water inlet pipe (27) is provided on the side wall of the water distribution block (2), the water inlet pipe (27) is connected to multiple vent holes (8), and an air outlet (28) is formed at the top of the water inlet pipe (27).

6. The water pipe structure for a gradient amplifier cooling system according to claim 5, characterized in that: The water inlet pipe (27) is flared at the air outlet (28), and a top cover (29) is detachably provided on the top of the water inlet pipe (27) at the air outlet (28).

7. The water pipe structure for a gradient amplifier cooling system according to claim 5, characterized in that: The bottom end of the water inlet pipe (27) is formed with a drain outlet (30), and the water inlet pipe (27) is detachably provided with a bottom cover (31) at the drain outlet (30).

8. The water pipe structure for a gradient amplifier cooling system according to claim 5, characterized in that: The valve core (6) has a pressure relief channel (32). When the valve core (6) rotates from the working position to the cut-off position, and the inner wall of the water distribution block (2) blocks the water supply channel (7), the pressure relief channel (32) connects the branch channel (5) and the vent (8). When the valve core (6) is in the cut-off position, the inner wall of the water distribution block (2) blocks the pressure relief channel (32).

9. A water pipe structure for a gradient amplifier cooling system according to claim 8, characterized in that: A fourth slot (19) is provided on the outer side wall of the rotating ring (15). The fourth slot (19) is located between the first slot (16) and the second slot (17). The depth of the fourth slot (19) gradually increases from the first slot (16) to the second slot (17).

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