Water flow testing device for water-cooled magnet coil upper seal type

Abstract

This invention discloses a top-sealed water flow rate testing device for a water-cooled magnet coil, comprising a container assembly and a water-blocking assembly. The water-blocking assembly, used to block the coil under test, is disposed inside the container assembly, dividing the interior of the container assembly into a high-pressure water zone and a low-pressure water zone. The container assembly is provided with an inlet and an outlet, the inlet communicating with the high-pressure water zone and the outlet communicating with the low-pressure water zone. The water-blocking assembly includes a sealing cap and a sealing ring. The sealing cap is disposed on top of the central through-hole of the coil under test, and the outer side of the sealing ring is sealed to the inner wall of the container assembly, while the inner side is sealed to the coil under test. The advantage of this invention is that, through the setting of the water-blocking assembly, the inlet is connected to an external cooling water supply system. The flow rate entering the high-pressure water zone from the inlet can be measured by measuring the water flow rate entering the inlet using an electromagnetic flow meter, thereby realizing the testing of the water flow rate of a single coil under test.

Description

Technical Field

[0001] This invention relates to the field of water-cooled magnet technology, specifically to a water flow testing device with a sealed top of a water-cooled magnet coil. 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 flow test device for a water-cooled magnet coil with top sealing includes a container assembly and a water-blocking assembly. The water-blocking assembly for blocking 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 cap and a water-sealing ring. The sealing cap is located on top of the central through hole of the coil under test. The outer side of the water-sealing ring is sealed to the inner wall of the container assembly, and the inner side is sealed to the coil under test.

[0007] This invention connects the water inlet to an external cooling water delivery system by setting up a water-blocking component. 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, a limiting step is provided on the sealing cover.

[0011] Preferably, the sealing cover extending into the central through hole of the coil under test is provided with multiple sealing grooves, and a sealing ring is fitted on the sealing groove.

[0012] Preferably, the outer side of the water sealing ring is sealed to the inner wall of the container assembly, and the inner side is sealed to the top of the coil to be tested.

[0013] Preferably, the water-blocking assembly further includes a sealing tube and clamps, with the sealing tube sleeved on the outer wall of the coil to be tested and both ends locked by clamps.

[0014] Preferably, the outer side of the sealing ring is sealed to the inner wall of the container assembly, and the inner side is sealed to the bottom of the coil to be tested.

[0015] Preferably, the inner wall of the container assembly is provided with a circular flange, and the outer side of the sealing ring is sealed to the circular flange.

[0016] Preferably, the sealing tube is made of rubber.

[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 cover and a water sealing ring on the water blocking assembly. The flow rate of the water entering the high-pressure water zone from the water inlet can be measured by measuring the water flow rate of the water entering the inlet through 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 partial structural diagram of Embodiment 2 of the present invention; Figure 4 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 2 This embodiment discloses a water flow test device for a water-cooled magnet coil top-sealed 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 support legs 14. The top and bottom of the cylindrical body 11, which is hollow and has a circular cross-section, are respectively connected to the top cover 12 and the bottom cover 13. Four support legs 14 are fixed at equal intervals around the bottom of the cylindrical body 11. The cylinder 11 includes an inner cylinder 111, an outer cylinder 112, a first connecting plate 113, a second connecting plate 114, and a partition 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 on the first connecting plate 113, and the bottom cover 13 is fixed on the second connecting plate 114. The partition 115 is connected in the middle between the inner cylinder 111 and the outer cylinder 112. The inner cylinder 111 above the partition 115 is provided with multiple high-pressure water inlets 1111, and the inner cylinder 111 below the partition 115 is provided with multiple low-pressure water outlets 1112. The outer cylinder 112 above the partition 115 is provided with two sets of water inlets 1121, and the outer cylinder 112 below the partition 115 is provided with two sets of water outlets 1122. The inlet 1121 is connected to the external cooling water delivery system, and the water flow rate entering the inlet 1121 is measured by the electromagnetic flow meter 4.

[0023] The water-blocking assembly 2 includes a sealing cap 21 and a water-sealing ring 22. The sealing cap 21 is located on the top of the central through hole of the coil to be tested 3. The outer wall of the water-sealing ring 22 is sealed to the inner wall of the inner cylinder 111 below the high-pressure water inlet hole 1111. The bottom surface of the inner side of the water-sealing ring 22 is sealed to the end plate 31 at the top 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, the bottom surface of the inner side of the sealing ring 22 is sealed to the upper end plate 32 at the top of the coil to be tested 3, thereby sealing the gap between the inner cylinder 111 and the outer wall of the coil to be tested 3.

[0026] The sealing cover 21 is located on the central through hole in the center of the upper end plate 32, and a limiting step is provided on the sealing cover 21 to limit its axial movement. Since the upper part of the sealing cover 21 is in the high-pressure water zone 101 and the lower part is in the low-pressure water zone 102, there is a pressure difference. The high-pressure water zone 101 tends to push the sealing cover 21 downward. At this time, the limiting step on the sealing cover 21 is used to prevent the sealing cover 21 from moving downward, preventing the sealing cover 21 from penetrating the upper end plate 32 and inserting into the coil body 31, which would affect the seal. Two sealing grooves are provided on the outer wall of the sealing cover 21 that extends into the upper end plate 32. A sealing ring is fitted on the sealing groove to seal the central through hole of the coil 3 under test, preventing cooling water from flowing out of the central through hole of the coil 3 under test.

[0027] 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 22 seals the gap between the inner cylinder 111 and the outer wall of the coil under test 3, and the sealing cover 21 seals the central through hole of the coil under test 3, cooling water will not flow out from the gap between the inner cylinder 111 and the outer wall of the coil under test 3, nor from the central through hole of the coil under test 3. Therefore, cooling water can only flow into the low-pressure water zone 102 through the top of the coil under test 3, and then out through the low-pressure outlet hole 1112 and the outlet 1122. Since cooling water can only flow into the low-pressure water zone 102 through the top 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. Therefore, as... Figure 1 As 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.

[0028] Example 2 See Figure 3 and Figure 4 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.

[0029] The water-blocking assembly 2 also includes a sealing tube 23 and a clamp 24. The sealing tube 23 is sleeved on the outer wall of the coil to be tested 3 and both ends are locked by the clamp 24. 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. The upper end of the sealing tube 23 is sleeved on the upper electrode cylinder 35, and the upper end of the sealing tube 23 is sealed and clamped to the outer wall of the upper electrode cylinder 35 by the clamp 24. The lower end of the sealing tube 23 is sleeved on the lower electrode cylinder 36, and the lower end of the sealing tube 23 is sealed and clamped to the outer wall of the lower electrode cylinder 36 by the clamp 24. The sealing tube 23 seals the outer wall of the coil to be tested 3. In this embodiment, the sealing tube is made of silicone or other rubber materials to ensure that the sealing tube 23 can seal the outer wall of the coil to be tested 3.

[0030] A circular flange 11101 is welded to the inner wall of the inner cylinder 111 above the low-pressure water outlet 1112. The outer side of the sealing ring 22 is sealed and fixed to the top of the circular flange 11101. Specifically, the sealing ring 22 is fixed to the circular flange 11101 by bolts, and a sealing groove is provided on the bottom surface of the sealing ring 22 outside the bolts. A sealing ring is provided on the sealing groove to achieve the seal between the sealing ring 22 and the circular flange 11101.

[0031] The inner side of the water sealing ring 22 is sealed to the bottom surface of the lower electrode cylinder 36 at the bottom of the coil under test 3. Similarly, the water sealing ring 22 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 22 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 22 and the lower electrode cylinder 36 at the bottom of the coil under test 3.

[0032] 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 22 sealing the gap between the inner cylinder 111 and the lower electrode cylinder 36 at the bottom of the coil under test 3, the sealing cover 21 sealing the central through hole of the coil under test 3, and the sealing tube 23 sealing the outer wall of the coil under test 3, the cooling water in the high-pressure water zone 101 will not flow from the gap between the inner cylinder 111 and the lower electrode cylinder 36 at the bottom of the coil under test 3, the central through hole of the coil under test 3, and the coil body 31 of the coil under test 3 to the low-pressure water zone 102. As a result, the cooling water can only flow into the low-pressure water zone 102 through the top 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 top 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.

[0033] 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.

[0034] 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 flow rate testing device with a sealed top of a water-cooled magnet coil, 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 cap and a water-sealing ring. The sealing cap is located on top of the central through hole of the coil under test. The outer side of the water-sealing ring is sealed to the inner wall of the container assembly, and the inner side is sealed to the coil under test.

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

5. A water-cooled magnet coil top-sealed water flow testing device according to claim 4, characterized in that: The sealing cover that extends into the center through hole of the coil under test is provided with multiple sealing grooves, and a sealing ring is fitted on the sealing groove.

6. A water-cooled magnet coil top-sealed water flow testing device according to claim 1, characterized in that: The outer side of the sealing ring is sealed to the inner wall of the container assembly, and the inner side is sealed to the top of the coil to be tested.

7. A water-cooled magnet coil top-sealed water flow testing device according to claim 1, characterized in that: The water-blocking assembly also includes a sealing tube and clamps. The sealing tube is fitted onto the outer wall of the coil to be tested and is locked at both ends by clamps.

8. A water-cooled magnet coil top-sealed water flow testing device according to claim 7, characterized in that: The outer side of the sealing ring is sealed to the inner wall of the container assembly, and the inner side is sealed to the bottom of the coil to be tested.

9. A water-cooled magnet coil top-sealed water flow testing device according to claim 8, characterized in that: The inner wall of the container assembly is provided with a circular flange, and the outer side of the sealing ring is sealed to the circular flange.

10. A water-cooled magnet coil top-sealed water flow testing device according to claim 7, characterized in that: The sealing tube is made of rubber.

Images