A constant temperature paint supply system for superconducting wire

Abstract

This utility model relates to the technical field of enameled wire coating equipment, and more particularly to a constant-temperature coating system for superconducting wires, comprising a coating tank, a pumping device, an intermediate tank, a filtering device, and a constant-temperature device. The coating tank is connected to a coating return pipe and a touch-up pipe, and the pumping device is installed on the touch-up pipe. A connecting pipe is provided at the upper part of the intermediate tank, the port of which is connected to the inlet pipe of the filtering device, and the side of the connecting pipe is connected to the upper part of the coating tank via a coating pipe. The height of the intermediate tank is greater than the height of the coating tank, and the coating pipe is connected to the upper part of the coating tank. The bottoms of the intermediate tank and the coating tank are connected by a pipeline. The outlet pipe of the filtering device is connected to the coating inlet of the constant-temperature device, and the coating outlet of the constant-temperature device is connected to a coating supply pipe. This utility model's constant-temperature coating system for superconducting wires has the effects of stable coating pressure and ensuring a constant coating temperature.

Description

Technical Field

[0001] This utility model relates to the technical field of enameled wire coating equipment, and in particular to a constant temperature enameling supply system for superconducting wires. Background Technology

[0002] Superconducting wires are used in medical equipment, laboratory instruments, superconducting energy storage, and maglev trains. The core wires of superconducting wires must be continuous and of uniform thickness. Especially for superconducting wires used to make coils, the insulating varnish layer must be of uniform thickness to ensure that each turn of the wire is tightly packed without gaps. Furthermore, the insulating varnish layer of superconducting wires must be free of pinholes and unevenness to guarantee the performance of the superconducting wire. Therefore, the coating process of superconducting wires is particularly important.

[0003] In the enameling process of enameled wire, after the wire passes through the varnish box and mold, a thin varnish film forms on its surface. This process involves more than ten coatings before the final enameled wire product is obtained. The varnish in the varnish box is maintained at a set level, typically kept in a flowing state to ensure stable temperature. When coating superconducting wire, it is necessary not only to ensure the varnish temperature remains within a small fluctuation range but also to maintain a stable supply, minimize surface fluctuations, and ensure the varnish is free of impurities. Existing varnish supplies are not stable enough and lack temperature control. For example, an insulating varnish cooling device disclosed in CN218475539U can only cool the varnish, and the pumping device directly pumps the varnish from the varnish tank into the filtration device. Although a varnish storage tank exists between the filtration device and the cooling and temperature control device, the unstable pumping pressure makes it difficult to ensure a stable varnish supply. Utility Model Content

[0004] The purpose of this invention is to propose a superconducting constant temperature paint supply system, which has the effects of stable paint supply pressure and ensuring constant temperature of paint liquid.

[0005] To achieve this objective, the present invention adopts the following technical solution: A constant-temperature paint supply system for superconducting wires includes a paint tank, a pumping device, an intermediate tank, a filtration device, and a constant-temperature device. The paint tank is connected to a paint return pipe and a paint touch-up pipe, and the pumping device is installed on the paint touch-up pipe. The upper part of the intermediate tank is provided with a connecting pipe, the port of the connecting pipe is connected to the liquid inlet pipe of the filter device, and the side of the connecting pipe is connected to the upper part of the paint tank through a paint pipe. The height of the intermediate bucket is greater than the height of the paint bucket, the paint pipe is connected to the upper part of the paint bucket, and the bottoms of the intermediate bucket and the paint bucket are connected by a pipe. The outlet pipe of the filter device is connected to the paint inlet of the constant temperature device, and the paint outlet of the constant temperature device is connected to a paint supply pipe.

[0006] Furthermore, a pressure gauge is installed in the paint pipe, and a level gauge is installed on the top of the intermediate tank.

[0007] Furthermore, the constant temperature device includes a cooling mechanism, a heating mechanism, a heat exchange tank, and a medium container, wherein the medium container is connected to the cooling mechanism and the heating mechanism respectively through pipelines; The cooling mechanism and the heating mechanism are respectively connected to the medium inlet pipe of the heat exchange tank, and the medium outlet pipe of the heat exchange tank is connected to the medium container. Both the paint inlet and the paint outlet are located in the heat exchange tank.

[0008] Furthermore, the outlet pipe of the medium container is equipped with a liquid discharge pump, and the cooling mechanism and the heating mechanism are respectively equipped with solenoid valves on the pipes connected to the liquid discharge pump; Temperature sensors are respectively installed in the liquid outlet pipe of the medium container, the liquid outlet pipe of the cooling mechanism, and the liquid outlet pipe of the heating mechanism.

[0009] Furthermore, the cooling mechanism cools the heat exchange medium with cooling water, and the heating mechanism heats the heat exchange medium with electric heating wires.

[0010] Furthermore, the heat exchange tank includes a tank cover, a tank body, and a coil body. The coil body is located inside the tank body, dividing the tank body into an inner cylindrical cavity and an annular cavity. The upper port of the coil body is the paint inlet, and the lower port of the coil body is the paint outlet. The bucket lid is connected to the top of the bucket body. The medium inlet pipe and the medium outlet pipe are both connected to the bucket lid. One of the medium inlet pipe and the medium outlet pipe is connected to the inner cylindrical cavity, and the other is used to connect to the annular cavity.

[0011] Furthermore, the filtration device includes two filter cartridges connected in parallel.

[0012] Furthermore, it also includes a support base, on which the paint tank, pumping device, intermediate tank and filter device are all mounted; The intermediate tank is located at the rear of the filtration device, the paint tank is located at the rear of the heat exchange vertical tank, and the pumping device is located between the intermediate tank and the paint tank.

[0013] The technical solution provided by this utility model can include the following beneficial effects: In this design, the intermediate tank balances the paint pressure input to the filter via the paint pipe. When the paint pressure is too high, the excess paint enters the intermediate tank. After the pumping device pumps the paint into the paint tank, the paint is discharged from the paint pipe into the filter and the intermediate tank. Because the height of the intermediate tank is greater than that of the paint tank and the bottoms of the two are connected by pipes, the liquid levels in both tanks can be kept at the same level, stabilizing the paint pressure entering the filter and thus stabilizing the paint supply pressure. The filtered paint then passes through a temperature control device before entering the paint supply pipe, ensuring a constant paint temperature. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of a superconducting wire constant temperature paint supply system according to an embodiment of this utility model; Figure 2 This is a schematic diagram showing the coordination of the intermediate tank, pumping device, and paint tank; Figure 3 This is a schematic diagram showing the connection between the intermediate tank and the filter device; Figure 4 This is a schematic diagram of a temperature control device; Figure 5 This is an axial cross-sectional view of the heat exchange tank; The components include: paint tank 1, paint return pipe 11, touch-up pipe 12, paint pipe 13, pressure gauge 14, pumping device 2, intermediate tank 3, connecting pipe 31, level gauge 32, filter device 4, inlet pipe 41, outlet pipe 42, filter cylinder 43, constant temperature device 5, paint inlet 501, paint outlet 502, cooling mechanism 51, heating mechanism 52, heat exchange tank 53, tank cover 531, tank body 532, coil body 533, medium inlet pipe 534, medium outlet pipe 535, annular cavity 536, medium container 54, outlet pump 55, and paint supply pipe 7. Detailed Implementation

[0015] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0016] The following is combined Figures 1 to 5 This invention describes a superconducting wire constant temperature paint supply system according to an embodiment of the present invention, including a paint tank 1, a pumping device 2, an intermediate tank 3, a filtering device 4, and a constant temperature device 5. The paint tank 1 is connected to a paint return pipe 11 and a paint touch-up pipe 12, and the pumping device 2 is installed on the paint touch-up pipe 12. The upper part of the intermediate tank 3 is provided with a connecting pipe 31. The port of the connecting pipe 31 is connected to the liquid inlet pipe 41 of the filter device 4. The side of the connecting pipe 31 is connected to the upper part of the paint tank 1 through the paint pipe 13. The height of the intermediate bucket 3 is greater than the height of the paint bucket 1, the paint pipe 13 is connected to the upper part of the paint bucket 1, and the bottom of the intermediate bucket 3 and the paint bucket 1 are connected by a pipe. The outlet pipe 42 of the filter device 4 is connected to the paint inlet 501 of the constant temperature device 5, and the paint outlet 502 of the constant temperature device 5 is connected to the paint supply pipe 7.

[0017] In this design, the intermediate tank 3 is used to balance the paint pressure input from the paint pipe 13 to the filter device 4. When the paint pressure is too high, the excess paint enters the intermediate tank 3. After the pumping device 2 pumps the paint into the paint tank 1, the paint is discharged from the paint pipe 13 into the filter device 4 and the intermediate tank 3. Because the height of the intermediate tank 3 is greater than the height of the paint tank 1 and the bottoms of the two are connected by pipes, the paint pressure entering the filter device 4 is stabilized, thereby stabilizing the paint supply pressure. The filtered paint enters the paint supply pipe 7 only after passing through the temperature control device 5, ensuring a constant paint temperature.

[0018] In this design, pumping device 2 is a liquid pump that pumps the stored paint liquid into paint tank 1. Paint tank 1 also recovers paint liquid from the coating box via paint return pipe 11. This paint supply system provides a stable, temperature-controlled supply of paint liquid for the coating process, ensuring effective coating of the superconducting wire. It should be noted that, to ensure a stable paint supply, the liquid level in the paint tank is slightly higher than the liquid level in the intermediate tank 3 to ensure smooth paint return.

[0019] Preferably, the paint supply pipe 13 is equipped with a pressure gauge 14, and the top of the intermediate tank 3 is equipped with a level gauge 32. The pressure gauge 14 monitors the pressure of the liquid in the paint supply pipe 13, and the level gauge 32 detects the page height in the intermediate tank 3 to determine whether the paint supply pressure is stable. In this design, the level gauge 32 is a radar level gauge.

[0020] In one embodiment of the present invention, the constant temperature device 5 includes a cooling mechanism 51, a heating mechanism 52, a heat exchange tank 53, and a medium container 54. The medium container 54 is connected to the cooling mechanism 51 and the heating mechanism 52 respectively through pipelines. The cooling mechanism 51 and the heating mechanism 52 are respectively connected to the medium inlet pipe 534 of the heat exchange tank 53, and the medium outlet pipe 535 of the heat exchange tank 53 is connected to the medium container 54. Both the paint inlet 501 and the paint outlet 502 are located in the heat exchange tank 53.

[0021] The heat exchange medium in the medium container 54 enters the cooling mechanism 51 or the heating mechanism 52, and after being heated or cooled, it enters the heat exchange tank 53. The heat exchange medium exchanges heat with the paint liquid in the heat exchange tank 53, keeping the liquid temperature at the paint liquid outlet 502 constant. As a result, the viscosity of the paint liquid remains constant, and the paint film formed by each coat is of uniform thickness and free of surface defects such as pinholes.

[0022] Preferably, the outlet pipe of the medium container 54 is provided with a liquid discharge pump 55, and the cooling mechanism 51 and the heating mechanism 52 are respectively provided with solenoid valves on the pipes connected to the liquid discharge pump 55; Temperature sensors are respectively installed in the liquid outlet pipe 42 of the medium container 54, the liquid outlet pipe 42 of the cooling mechanism 51, and the liquid outlet pipe 42 of the heating mechanism 52.

[0023] The flow rate of the heat exchange medium is controlled by the outlet pump 55, and the flow of the heat exchange medium into the cooling mechanism 51 or the heating mechanism 52 is controlled by the solenoid valve. The temperature sensor is used to obtain the temperature of the heat exchange medium, thereby ensuring that the temperature of the paint liquid after heat exchange with the heat exchange medium is constant.

[0024] More preferably, the cooling mechanism 51 cools the heat exchange medium with cooling water, and the heating mechanism 52 heats the heat exchange medium with an electric heating wire. Specifically, the heat exchange medium in this solution is water. For example, the cooling mechanism 51 and the heating mechanism 52 each include a heat exchange chamber and a heat exchange medium conveying pipe located within the heat exchange chamber. The heat exchange chamber of the cooling mechanism 51 is filled with cold water, and the heat exchange chamber of the heating mechanism 52 is equipped with an electric heating wire wound around the heat exchange medium conveying pipe. The cooling mechanism 51, the heating mechanism 52, the medium inlet pipe 534, and the heat exchange tank 53 are all covered with insulation material.

[0025] To improve the heat exchange effect, preferably, the heat exchange tank 53 includes a tank cover 531, a tank body 532 and a coil body 533. The coil body 533 is located inside the tank body 532, dividing the tank body 532 into an inner cylindrical cavity and an annular cavity 536. The upper port of the coil body 533 is the paint inlet 501, and the lower port of the coil body 533 is the paint outlet 502. The barrel lid 531 is connected to the top of the barrel body 532. The medium inlet pipe 534 and the medium outlet pipe 535 are both connected to the barrel lid 531. One of the medium inlet pipe 534 and the medium outlet pipe 535 is connected to the inner cylindrical cavity, and the other is connected to the annular cavity 536.

[0026] The lid 531 is fixed to the top of the barrel body 532 with screws. The bottom surface of the lid 531 has a positioning ring, which is inserted into the coil body 533 to ensure the heat exchange medium enters the inner column cavity. A gap exists between the bottom of the coil body 533 and the bottom wall of the barrel body 532 to allow the heat exchange medium to flow between the inner column cavity and the annular cavity 536, achieving a heat exchange medium circulation effect. Specifically, the heat exchange medium enters the inner column cavity through the medium inlet pipe 534, flows from the top to the bottom of the inner column cavity, and then enters the annular cavity 536. After flowing to the top of the annular cavity 536, it exits through the medium outlet pipe 535 and flows back into the medium container 54. The coil body 533 has tightly arranged tubes with no gaps between adjacent tubes to ensure stable flow of the heat exchange medium and achieve excellent heat exchange performance.

[0027] In one embodiment of this invention, the filtration device 4 includes two parallel filter cartridges 43 to achieve sufficient filtration capacity and reduce filtration resistance. The filter material in the filter cartridges 43 of this design is PP cotton.

[0028] In one embodiment of the present invention, a support base (not shown in the figure) is also included, and the paint tank 1, the pumping device 2, the intermediate tank 3 and the filter device 4 are all disposed on the support base; The intermediate tank 3 is located at the rear of the filter device 4, the paint tank 1 is located at the rear of the heat exchange vertical tank 53, and the pumping device 2 is located between the intermediate tank 3 and the paint tank 1.

[0029] The paint tank 1, pumping device 2, intermediate tank 3 and filter device 4 are arranged closely together by the bracket, making the paint supply system compact and reducing the space occupied. The above equipment is fixed to the bracket by screw connection or welding.

[0030] Other components and operations of the superconducting constant temperature paint supply system according to the embodiments of this utility model are known to those skilled in the art and will not be described in detail here.

[0031] In this specification, the terms "embodiment," "example," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0032] In the description of this utility model, it should be understood that the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this utility model. Furthermore, features defined with "first" and "second" may explicitly or implicitly include one or more of these features, used to distinguish and describe features, without any order or emphasis.

[0033] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0034] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0035] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A constant temperature paint supply system for superconducting wire, characterized by, Includes paint tanks, pumping devices, intermediate tanks, filtration devices, and temperature control devices; The paint tank is connected to a paint return pipe and a paint touch-up pipe, and the pumping device is installed on the paint touch-up pipe. The upper part of the intermediate tank is provided with a connecting pipe, the port of the connecting pipe is connected to the liquid inlet pipe of the filter device, and the side of the connecting pipe is connected to the upper part of the paint tank through a paint pipe. The height of the intermediate bucket is greater than the height of the paint bucket, the paint pipe is connected to the upper part of the paint bucket, and the bottoms of the intermediate bucket and the paint bucket are connected by a pipe. The outlet pipe of the filter device is connected to the paint inlet of the constant temperature device, and the paint outlet of the constant temperature device is connected to a paint supply pipe.

2. The HTS wire constant temperature paint supply system of claim 1, wherein, The paint pipe is equipped with a pressure gauge, and the top of the intermediate tank is equipped with a level gauge.

3. The HTS wire constant temperature paint application system of claim 1, wherein The constant temperature device includes a cooling mechanism, a heating mechanism, a heat exchange tank, and a medium container. The medium container is connected to the cooling mechanism and the heating mechanism respectively through pipelines. The cooling mechanism and the heating mechanism are respectively connected to the medium inlet pipe of the heat exchange tank, and the medium outlet pipe of the heat exchange tank is connected to the medium container. Both the paint inlet and the paint outlet are located in the heat exchange tank.

4. The constant temperature paint supply system for superconducting wires according to claim 3, characterized in that, The outlet pipe of the medium container is equipped with a liquid discharge pump, and the cooling mechanism and the heating mechanism are respectively equipped with solenoid valves on the pipes connected to the liquid discharge pump. Temperature sensors are respectively installed in the liquid outlet pipe of the medium container, the liquid outlet pipe of the cooling mechanism, and the liquid outlet pipe of the heating mechanism.

5. The HTS wire constant temperature paint application system of claim 4, wherein, The cooling mechanism cools the heat exchange medium with cooling water, and the heating mechanism heats the heat exchange medium with electric heating wires.

6. The superconducting wire constant temperature paint supply system of claim 3, wherein, The heat exchange tank includes a lid, a tank body, and a coil body. The coil body is located inside the tank body and divides the tank body into an inner cylindrical cavity and an annular cavity. The upper port of the coil body is the paint inlet, and the lower port of the coil body is the paint outlet. The bucket lid is connected to the top of the bucket body. The medium inlet pipe and the medium outlet pipe are both connected to the bucket lid. One of the medium inlet pipe and the medium outlet pipe is connected to the inner cylindrical cavity, and the other is used to connect to the annular cavity.

7. The HTS wire constant temperature paint application system of claim 6, wherein, The filtration device comprises two filter cartridges connected in parallel.

8. The HTS wire constant temperature paint supply system of claim 6, wherein, It also includes a support base, on which the paint tank, pumping device, intermediate tank and filter device are all mounted; The intermediate tank is located at the rear of the filtration device, the paint tank is located at the rear of the heat exchange vertical tank, and the pumping device is located between the intermediate tank and the paint tank.

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