Water-cooled magnet coil lower seal type water flow test device

Abstract

The application discloses a water-cooled magnet coil lower sealing type water flow testing device, which comprises a container assembly and a water plugging assembly. The water plugging assembly for plugging the coil to be tested is arranged in the container assembly and divides the container assembly into a high-pressure water area and a low-pressure water area. The container assembly is provided with a water inlet and a water outlet. The water inlet is communicated with the high-pressure water area, and the water outlet is communicated with the low-pressure water area. The water plugging assembly comprises a sealing positioning cylinder, a sealing shaft and a water sealing ring. The application has the advantages that the sealing shaft and the water sealing ring are arranged on the water plugging assembly, the water inlet is communicated with an external cooling water conveying system, the water flow entering the water inlet is measured by an electromagnetic flowmeter, the flow entering the high-pressure water area from the water inlet is measured, and thus the water flow of a single coil to be tested is tested.

Description

Technical Field

[0001] This invention relates to the field of water-cooled magnet technology, specifically to a water flow testing device with a water-cooled magnet coil under-sealed. Background Technology

[0002] A water-cooled magnet is a device that generates a magnetic field by connecting multiple water-cooled magnet coils in parallel or series and passing a certain current through them. Water is the main experimental device in a steady-state high magnetic field laboratory. Due to its high magnetic field strength, fast excitation speed, and high experimental efficiency, it is a highly regarded extreme condition experimental platform. Water-cooled magnets have high magnetic field strengths, reaching up to 42T or more, and consume power in the tens of megawatts range. The water-cooled magnet uses high-speed deionized water to remove a large amount of Joule heat, ensuring that the magnet temperature remains normal.

[0003] Currently, the water flow rate of water-cooled magnets is measured only by installing an electromagnetic flowmeter on the inlet pipe. However, the gaps between the water-cooled magnet coil and the insulating cylinder, and between the coil and the central tube, cannot be accurately determined, making it impossible to obtain the accurate water flow rate value for each coil. Measuring the water flow rate of a single water-cooled coil is crucial for the design and experimental operation of water-cooled magnets. The water flow rate calculation for a single coil in water-cooled magnet design, based on empirical friction resistance coefficients, differs significantly from actual operating conditions. Furthermore, in actual operation, the complex structure and numerous flow channels of water-cooled magnet devices make it impossible to directly measure the accurate water flow rate value of each coil. Accurate measurement of the water flow rate of each coil can provide accurate friction resistance coefficients for the optimization and design of water-cooled magnets, enabling precise design of the water flow rate for each coil. This provides key technical parameters for developing higher field strength devices for high-field water-cooled magnets. Simultaneously, it also provides guidance for further improving the magnetic field strength and achieving more efficient operation of existing water-cooled magnet devices. Therefore, a testing device capable of measuring the water flow rate of a single water-cooled coil is urgently needed. Summary of the Invention

[0004] The technical problem to be solved by the present invention is how to provide a testing device capable of testing the water flow rate of a single water-cooled coil.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution:

[0006] A water-cooled magnet coil bottom-sealed water flow testing device includes a container assembly and a water-blocking assembly. The water-blocking assembly for blocking the coil under test is set inside the container assembly, and the inside of the container assembly is divided into a high-pressure water zone and a low-pressure water zone. The container assembly is equipped with an inlet and an outlet. The inlet is connected to the high-pressure water zone, and the outlet is connected to the low-pressure water zone. The water-blocking assembly includes a sealing positioning cylinder, a sealing shaft, and a water-sealing ring. The sealing positioning cylinder is fixed inside the container assembly at the bottom of the coil under test. One end of the sealing shaft is sealed at the bottom of the central through hole of the coil under test, and the other end is inserted into the sealing positioning cylinder. One end of the water-sealing ring is sealed to the inner wall of the container assembly, and the other end is sealed to the bottom of the coil under test.

[0007] This invention connects the water inlet to an external cooling water delivery system by setting a sealing shaft and a sealing ring on the water-blocking assembly. The flow rate of water entering the high-pressure water zone from the water inlet can be measured by measuring the water flow rate entering the inlet using an electromagnetic flow meter, thereby realizing the test of the water flow rate of a single coil under test.

[0008] Preferably, the container assembly includes a cylindrical body, a top cover, a bottom cover, and support legs. The top and bottom of the hollow cylindrical body are respectively connected to the top cover and the bottom cover. Multiple support legs are also fixed at the bottom of the cylindrical body. The water inlet and water outlet are both located on the cylindrical body, and the water blocking assembly is located in the inner cavity of the cylindrical body.

[0009] Preferably, the cylinder includes an inner cylinder, an outer cylinder, a first connecting plate, a second connecting plate, and a partition. The inner cylinder and the outer cylinder are arranged at intervals. The top ends of the inner cylinder and the outer cylinder are connected by the first connecting plate, and the bottom ends are connected by the second connecting plate. The top cover is fixed on the first connecting plate, and the bottom cover is fixed on the second connecting plate. The partition is connected in the middle between the inner cylinder and the outer cylinder. The inner cylinder above the partition is provided with a high-pressure water inlet, and the inner cylinder below the partition is provided with a low-pressure water outlet. The water inlet is located on the outer cylinder above the partition, and the water outlet is located on the outer cylinder below the partition. The water-blocking assembly is located in the inner cavity of the inner cylinder.

[0010] Preferably, the inner wall of the container assembly is provided with a circular flange, and the end of the water sealing ring away from the coil to be tested is sealed to the circular flange.

[0011] Preferably, a limiting step is provided on the sealing shaft.

[0012] Preferably, the sealing shaft extending into the central through hole of the coil to be tested is provided with multiple sealing grooves, and a sealing ring is fitted on the sealing groove.

[0013] Preferably, the sealing positioning cylinder includes a base and a cylindrical tube. The base is fixed inside the container assembly at the bottom of the coil to be tested, and the cylindrical tube with an open top is fixed on the base. The end of the sealing shaft away from the coil to be tested is inserted into the cylindrical tube.

[0014] Preferably, the diameter of the base is larger than the diameter of the cylindrical tube.

[0015] Preferably, a conical boss is provided between the bottom of the cylindrical tube and the base.

[0016] Preferably, the end of the sealing shaft furthest from the coil under test is inclined toward the center of the sealing shaft.

[0017] Compared with the prior art, the beneficial effects of the present invention are: This invention connects the water inlet to an external cooling water delivery system by setting a sealing shaft and a sealing ring on the water-blocking assembly. The flow rate of water entering the high-pressure water zone from the water inlet can be measured by measuring the water flow rate entering the inlet using an electromagnetic flow meter, thereby realizing the test of the water flow rate of a single coil under test. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the installation structure according to Embodiment 1 of the present invention; Figure 2 This is a partial structural diagram of Embodiment 1 of the present invention; Figure 3 This is a schematic diagram of the structure of the sealing positioning cylinder according to Embodiment 1 of the present invention; Figure 4 This is a partial structural diagram of Embodiment 2 of the present invention; Figure 5 This is another partial structural schematic diagram of Embodiment 2 of the present invention; Detailed Implementation To facilitate understanding of the technical solution of the present invention by those skilled in the art, the technical solution of the present invention will now be further described in conjunction with the accompanying drawings.

[0019] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0020] In this application, unless otherwise expressly specified and limited, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise expressly and specifically limited.

[0021] Example 1 See Figure 1 and Figure 2This embodiment discloses a water flow test device for a water-cooled magnet coil bottom sealing type, which is used to test the water flow of the outermost coil of the water-cooled magnet. The test device includes a container assembly 1 and a water blocking assembly 2. The water blocking assembly 2, which is used to block the coil 3 to be tested, is set inside the container assembly 1, and the inside of the container assembly 1 is divided into a high-pressure water zone 101 and a low-pressure water zone 102.

[0022] The container assembly 1 includes a cylindrical body 11, a top cover 12, a bottom cover 13, and supporting legs 14. The top and bottom of the hollow, circularly shaped cylindrical body 11 are respectively connected to the top cover 12 and the bottom cover 13. Four supporting legs 14 are fixed at equal intervals around the bottom of the cylindrical body 11. The cylindrical body 11 includes an inner cylinder 111, an outer cylinder 112, a first connecting plate 113, a second connecting plate 114, and a partition plate 115. The inner cylinder 111 and the outer cylinder 112 are arranged at intervals. The top ends of the inner cylinder 111 and the outer cylinder 112 are connected by the first connecting plate 113, and the bottom ends are connected by the second connecting plate 114. The top cover 12 is fixed to the first connecting plate 113, the bottom cover 13 is fixed to the second connecting plate 114, and the partition plate 115 is connected to the inner cylinder 111. In the middle section between the inner cylinder 111 and the outer cylinder 112, multiple high-pressure water inlets 1111 are provided on the inner cylinder 111 above the partition 115, and multiple low-pressure water outlets 1112 are provided on the inner cylinder 111 below the partition 115. Two sets of water inlets 1121 are provided on the outer cylinder 112 above the partition 115, and two sets of water outlets 1122 are provided on the outer cylinder 112 below the partition 115. The water blocking assembly 2 and the test coil 3 are located inside the inner cylinder 111. The water inlets 1121 are connected to the external cooling water delivery system, and the water flow rate entering the water inlets 1121 is measured by the electromagnetic flowmeter 4.

[0023] The water-blocking assembly 2 includes a sealing positioning cylinder 21, a sealing shaft 22, and a water-sealing ring 23. The sealing positioning cylinder 21 is fixed on the inner wall of the bottom cover 13 at the bottom of the coil to be tested 3. One end of the sealing shaft 22 is sealed at the bottom of the central through hole of the coil to be tested 3, and the other end is inserted into the sealing positioning cylinder 21. One end of the water-sealing ring 23 is sealed to the inner wall of the inner cylinder 111 above the low-pressure water outlet 1112, and the other end is sealed to the bottom of the coil to be tested 3.

[0024] It should be noted that this embodiment is for the detection of water flow in the outermost coil of the water-cooled magnet. The outermost coil to be tested 3 generally includes a coil body 31, an upper end plate 32, a lower end plate 33 and a fixing rod 34. The upper end plate 32 and the lower end plate 33 are provided at the upper and lower ends of the coil body 31, and the upper end plate 32 and the lower end plate 33 are fixed together by the fixing rod 34.

[0025] In this embodiment, refer to Figure 3The sealing positioning cylinder 21 includes a base 211, a cylindrical cylinder 212, and a conical boss 213. The base 211 is sealed and fixed on the inner wall of the bottom cover 13 at the bottom of the coil to be tested 3. The cylindrical cylinder 212 with an open top is fixed on the base 211. The diameter of the base 211 is larger than the diameter of the cylindrical cylinder 212. A conical boss 213 is also provided between the bottom of the cylindrical cylinder 212 and the base 211 to improve the structural strength of the sealing positioning cylinder 21. The end of the sealing shaft 22 away from the coil to be tested 3 is inserted into the cylindrical cylinder 212, and the cylindrical cylinder 212 supports the sealing shaft 22.

[0026] Furthermore, the end of the sealing shaft 22 furthest from the coil 3 under test is inclined toward the center of the sealing shaft 22 to facilitate the insertion of the sealing shaft 22 into the sealing positioning cylinder 21.

[0027] The sealing ring 23 is sealed and fixed to the bottom surface of the lower end plate 33 by the fixing rod 34. A circular flange 11101 is welded to the inner wall of the inner cylinder 111 above the low pressure water outlet 1112. The bottom surface of the sealing ring 23 abuts against the top surface of the circular flange 11101. Two sealing grooves are provided on the sealing ring 23 on both sides of the fixing rod 34. A sealing ring that seals with the top surface of the circular flange 11101 is fitted on the sealing groove.

[0028] The sealing shaft 22, which extends into the central through hole of the coil under test 3, is provided with two sealing grooves. A sealing ring is fitted on the sealing groove to seal with the inner wall of the central through hole of the lower end plate 33. This seals the central through hole of the coil under test 3 and prevents cooling water from flowing out of the central through hole. A limiting step is provided on the sealing shaft 22 to limit the axial movement of the sealing shaft 22 and prevent the sealing shaft 22 from penetrating the lower end plate 33 and inserting into the coil body 31, thus affecting the seal.

[0029] Specifically, the working principle of this embodiment is as follows: Cooling water enters from the inlet 1121 and enters the high-pressure water zone 101 after passing through the high-pressure inlet hole 1111. Because the sealing ring 23 seals the gap between the inner cylinder 111 and the outer wall of the bottom of the coil under test 3, and the sealing shaft 22 seals the central through hole at the bottom of the coil under test 3, the cooling water in the high-pressure water zone 101 will not flow out from the gap between the inner cylinder 111 and the outer wall of the bottom of the coil under test 3, nor from the central through hole of the coil under test 3. Therefore, the cooling water in the high-pressure water zone 101 can only flow into the low-pressure water zone 102 through the lower end plate 33 at the bottom of the coil under test 3, and then out through the low-pressure outlet hole 1112 and the outlet 1122. Since the cooling water can only flow into the low-pressure water zone 102 through the lower end plate 33 at the bottom of the coil under test 3, the flow rate from the inlet 1121 into the high-pressure water zone 101 is the same as the water flow rate through the coil under test 3. Therefore, as... Figure 1As shown, the inlet 1121 is connected to the external cooling water delivery system. The flow rate of water entering the high-pressure water zone 101 from the inlet 1121 can be measured by the electromagnetic flow meter 4, thereby realizing the test of the water flow rate of a single coil under test 3.

[0030] Example 2 See Figure 4 and Figure 5 The difference between this embodiment and embodiment one is that the test device in this embodiment is used to test the water flow rate of other individual coils outside the outermost part of the water-cooled magnet.

[0031] Specifically, in this embodiment, the coil to be tested 3 also includes an upper electrode cylinder 35 and a lower electrode cylinder 36. The upper electrode cylinder 35 is fixed to the top of the upper end plate 32, and the lower electrode cylinder 36 is fixed to the bottom of the lower end plate 33.

[0032] The outer bottom surface of the sealing ring 23 is sealed and fixed to the top of the circular flange 11101. Specifically, the sealing ring 23 is fixed to the circular flange 11101 by bolts, and a sealing groove is provided on the bottom surface of the sealing ring 23 outside the bolts. A sealing ring is provided on the sealing groove to achieve the seal between the sealing ring 23 and the circular flange 11101.

[0033] The inner top surface of the water sealing ring 23 is sealed to the bottom surface of the lower electrode cylinder 36 of the coil under test 3. Similarly, the water sealing ring 23 is fixed to the lower electrode cylinder 36 by bolts, and two sealing grooves are provided on the top surface of the water sealing ring 23 on both the inner and outer sides of the bolts. Each sealing groove is provided with a sealing ring to achieve the sealing between the water sealing ring 23 and the lower electrode cylinder 36 of the coil under test 3.

[0034] The working principle of this embodiment is as follows: Cooling water enters from the inlet 1121 and enters the high-pressure water zone 101 after passing through the high-pressure inlet hole 1111. Due to the sealing ring 23 sealing the gap between the inner cylinder 111 and the outer wall of the lower electrode cylinder 3 at the bottom of the coil under test 3, and the sealing shaft 22 sealing the central through hole at the bottom of the coil under test 3, the cooling water in the high-pressure water zone 101 will not flow out from the gap between the inner cylinder 111 and the outer wall at the bottom of the coil under test 3 and the central through hole of the coil under test 3. As a result, the cooling water in the high-pressure water zone 101 can only flow into the low-pressure water zone 102 through the lower end plate 33 at the bottom of the coil under test 3, and then flow out through the low-pressure outlet hole 1112 and the outlet 1122. Since the cooling water can only flow into the low-pressure water zone 102 through the bottom end plate 33 of the coil under test 3, the flow rate from the inlet 1121 into the high-pressure water zone 101 is the water flow rate of the coil under test 3. The inlet 1121 is connected to the external cooling water delivery system. The flow rate of the water entering the inlet 1121 can be measured by the electromagnetic flow meter 4, thereby realizing the test of the water flow rate of a single coil under test 3.

[0035] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention, and no reference numerals in the claims should be construed as limiting the scope of the claims.

[0036] The above embodiments are merely illustrative of implementation methods of the invention. The scope of protection of the present invention is not limited to the above embodiments. For those skilled in the art, several modifications and improvements can be made without departing from the concept of the present invention, and these all fall within the scope of protection of the present invention.

Claims

1. A water-cooled magnet coil bottom-sealed water flow testing device, characterized in that: It includes a container assembly and a water-blocking assembly. The water-blocking assembly, which is used to block the coil under test, is located inside the container assembly, and the inside of the container assembly is divided into a high-pressure water zone and a low-pressure water zone. The container assembly is equipped with an inlet and an outlet. The inlet is connected to the high-pressure water zone, and the outlet is connected to the low-pressure water zone. The water-blocking assembly includes a sealing positioning cylinder, a sealing shaft, and a water-sealing ring. The sealing positioning cylinder is fixed inside the container assembly at the bottom of the coil under test. One end of the sealing shaft is sealed at the bottom of the central through hole of the coil under test, and the other end is inserted into the sealing positioning cylinder. One end of the water-sealing ring is sealed to the inner wall of the container assembly, and the other end is sealed to the bottom of the coil under test.

2. The water flow rate testing device with a water-cooled magnet coil under-sealed design according to claim 1, characterized in that: The container assembly includes a cylindrical body, a top cover, a bottom cover, and support legs. The top and bottom of the hollow cylindrical body are connected to the top cover and the bottom cover, respectively. Multiple support legs are also fixed at the bottom of the cylindrical body. The water inlet and outlet are both located on the cylindrical body, and the water blocking assembly is located in the inner cavity of the cylindrical body.

3. A water-cooled magnet coil bottom-sealed water flow testing device according to claim 2, characterized in that: The cylinder includes an inner cylinder, an outer cylinder, a first connecting plate, a second connecting plate, and a partition. The inner cylinder and the outer cylinder are arranged at intervals. The top ends of the inner cylinder and the outer cylinder are connected by the first connecting plate, and the bottom ends are connected by the second connecting plate. The top cover is fixed on the first connecting plate, and the bottom cover is fixed on the second connecting plate. The partition is connected in the middle between the inner cylinder and the outer cylinder. The inner cylinder above the partition is provided with a high-pressure water inlet, and the inner cylinder below the partition is provided with a low-pressure water outlet. The water inlet is located on the outer cylinder above the partition, and the water outlet is located on the outer cylinder below the partition. The water-blocking assembly is located in the inner cavity of the inner cylinder.

4. A water-cooled magnet coil bottom-sealed water flow testing device according to claim 1, characterized in that: The inner wall of the container assembly is provided with a circular flange, and the end of the water sealing ring away from the coil under test is sealed to the circular flange.

5. A water-cooled magnet coil bottom-sealed water flow testing device according to claim 1, characterized in that: A limit step is provided on the sealing shaft.

6. A water-cooled magnet coil bottom-sealed water flow testing device according to claim 5, characterized in that: The sealing shaft, which extends into the central through hole of the coil under test, is provided with multiple sealing grooves, and sealing rings are fitted on the sealing grooves.

7. A water-cooled magnet coil bottom-sealed water flow testing device according to claim 1, characterized in that: The sealing positioning cylinder includes a base and a cylindrical tube. The base is fixed inside the container assembly at the bottom of the coil under test, and the cylindrical tube with an open top is fixed on the base. The end of the sealing shaft away from the coil under test is inserted into the cylindrical tube.

8. A water-cooled magnet coil bottom-sealed water flow testing device according to claim 1, characterized in that: The diameter of the base is larger than the diameter of the cylindrical tube.

9. A water-cooled magnet coil bottom-sealed water flow testing device according to claim 1, characterized in that: A conical protrusion is also provided between the bottom of the cylindrical tube and the base.

10. A water-cooled magnet coil bottom-sealed water flow testing device according to claim 1, characterized in that: The end of the sealing shaft furthest from the coil under test is inclined toward the center of the sealing shaft.

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