Heater

Abstract

The utility model discloses a heater, which comprises a fluid pipeline comprising an inlet part configured to allow fluid to flow into the fluid pipeline; an outlet portion configured to allow fluid to flow out of the fluid conduit; one end of the bent pipe part is connected to the inlet part, the other end of the bent pipe part is connected to the outlet part, and the bent pipe part is in fluid communication with the inlet part and the outlet part; the electric heating part is located on the outer side of the fluid pipeline, the electric heating part surrounds at least one part of the fluid pipeline, and the electric heating part and the fluid pipeline are not integrally formed. The fluid heating device can effectively solve the problem that a heater of an existing fluid heating device is difficult to maintain.

Description

Technical Field

[0001] This utility model relates to the field of fluid heating technology, and in particular to a heater. Background Technology

[0002] Fluid heating equipment has a wide range of applications, including in industries such as semiconductors, photovoltaic solar energy, display panels, testing equipment, and micro-chemicals. Currently, fluid heating devices on the market typically consist of heating pipes and heaters. When the fluid heating device is working, fluid flows within the pipes, and the heater heats the fluid within the pipes.

[0003] However, one type of fluid heating device in the related technology uses a heating wire that extends inside the heating pipe and forms an integral part. This is inconvenient to disassemble and assemble, and because the heating wire extends into the heating pipe, it is in a fluid immersion environment for a long time. In the semiconductor field, under long-term immersion in strong acid or strong alkali fluids, there is a risk that the outer insulation layer of the heating wire will be corroded. Utility Model Content

[0004] The purpose of this invention is to solve at least one of the problems in the background art. This invention provides a heater.

[0005] To solve the above-mentioned technical problems, an embodiment of this utility model discloses a heater, comprising:

[0006] Fluid conduits, including:

[0007] The inlet is configured to allow fluid to flow into the fluid conduit;

[0008] An outlet section is configured to allow fluid to flow out of the fluid conduit;

[0009] The curved tube section has one end connected to the inlet section and the other end connected to the outlet section, and the curved tube section is in fluid communication with the inlet section and the outlet section;

[0010] An electric heating element is located outside the fluid conduit, surrounds at least a portion of the fluid conduit, and is separable from the fluid conduit.

[0011] By employing the above technical solution, a curved section is provided in the fluid pipeline, which effectively increases the volume of the fluid pipeline compared to a straight pipe. For example, for the same volume, the curved section occupies less space than a straight pipe. In other words, the fluid pipeline of this embodiment increases its volume without occupying more space by providing a curved section. Therefore, by heating the fluid pipeline with the electric heating unit, more fluid can be heated simultaneously, effectively improving heating efficiency.

[0012] Furthermore, the electric heating element and the fluid pipeline are separable, facilitating replacement and maintenance when the electric heating element malfunctions or is damaged. In this embodiment, the electric heating element is positioned outside the fluid pipeline. This isolates the electric heating element from the fluid through the pipeline wall, preventing contact between the fluid and the electric heating element and thus avoiding short circuits, ensuring heating efficiency. It also avoids the risk of corrosion to the outer insulation layer of the electric heating element due to prolonged immersion in the fluid. Furthermore, this arrangement facilitates replacement and maintenance when the electric heating element malfunctions or is damaged.

[0013] According to a specific embodiment of the present invention, the curved tube section includes: a first spiral tube body, the first spiral tube body being arranged in a disc shape; the electric heating section is a flexible heating element, the flexible heating element being wound around and covering the tube wall of the first spiral tube body; or the flexible heating element covering the disc-shaped surface of the first spiral tube body; or

[0014] The curved tube section includes: a second spiral tube body, the second spiral tube body being cylindrical; the electric heating section is a flexible heating element, the flexible heating element being wound around and covering the tube wall of the second spiral tube body, or the flexible heating element being surrounding and adhering to the cylindrical outer side of the second spiral tube body; or, the electric heating section is a mica heating ring, the mica heating ring being surrounding and adhering to the cylindrical outer side of the second spiral tube body; or

[0015] The curved tube section includes: a third spiral tube body, which is arranged in an annular shape; the electric heating section is a flexible heating element, which is wound around and covers the tube wall of the third spiral tube body, or the flexible heating element surrounds and adheres to the annular outer side of the third spiral tube body; or, the electric heating section is a mica heating ring, which surrounds and adheres to the annular outer side of the third spiral tube body.

[0016] According to a specific embodiment of the present invention, the bent tube portion includes:

[0017] A plurality of U-shaped tubes, each of the plurality of U-shaped tubes including a first end and a second end;

[0018] A plurality of connecting parts, wherein one end of each of the plurality of connecting parts is connected to the second end of one of the two adjacent U-shaped tubes, and the other end is connected to the first end of the other of the two adjacent U-shaped tubes.

[0019] According to a specific embodiment of the present invention, the plurality of U-shaped tubes are arranged in an array along a straight line;

[0020] The electric heating part is a flexible heating element, which is wound around and covered by the U-shaped tube; or the flexible heating element is wound around and covered by the U-shaped tube and the connecting part.

[0021] According to a specific embodiment of the present invention, the plurality of U-shaped tubes are arranged in a ring array;

[0022] The electric heating element is a flexible heating element that is wound around and wrapped around the wall of the U-shaped tube, or the flexible heating element surrounds and adheres to the outside of the annular array; or the electric heating element is a mica heating ring that surrounds and adheres to the outside of the annular array.

[0023] According to a specific embodiment of the present invention, the bent tube portion includes:

[0024] The outer ring of the U-shaped tube includes a plurality of said U-shaped tube bodies, and two adjacent said U-shaped tube bodies in the outer ring of the U-shaped tube are connected by said connecting part;

[0025] The inner ring of the U-shaped tube is located inside the outer ring of the U-shaped tube. The inner ring of the U-shaped tube includes a plurality of U-shaped tube bodies, and two adjacent U-shaped tube bodies in the inner ring of the U-shaped tube are connected by the connecting part.

[0026] One of the U-shaped tube bodies in the inner ring of the U-shaped tube is connected to one of the U-shaped tube bodies in the outer ring of the U-shaped tube through the connecting part;

[0027] The electric heating part is a flexible heating element, which is wrapped around and covered by the wall of the U-shaped tube, or the flexible heating element surrounds and adheres to the outside of the outer ring of the U-shaped tube; or the electric heating part is a mica heating ring, which surrounds and adheres to the outside of the outer ring of the U-shaped tube.

[0028] According to a specific embodiment of this utility model, the flexible heating element is a PI heating film, a rubber heating tape, a PET heating film, an FPC heating film, a silicone heating film, a graphene heating film, a rope heating wire, a resistance wire, a resistance sheet, a flexible heating belt, or a flexible heating blanket.

[0029] According to a specific embodiment of the present invention, it further includes:

[0030] A hose is disposed within the fluid conduit and is configured to allow fluid flow.

[0031] According to a specific embodiment of this utility model, the fluid pipe is made of quartz, and the hose is made of plastic.

[0032] By adopting the above technical solution, a flexible hose is installed inside the fluid pipeline and the fluid flows inside the hose. When the fluid has a corrosive effect on the material of the fluid pipeline (such as quartz), the fluid can be prevented from corroding the fluid pipeline by flowing inside the hose, thereby extending the service life of the fluid pipeline.

[0033] According to a specific embodiment of the present invention, the outer wall of the hose and the inner wall of the fluid conduit define a second flow channel, the second flow channel being configured for the flow of a second fluid, which is different from the fluid in question.

[0034] By adopting the above technical solution, a second flow channel is provided between the outer wall of the hose and the inner wall of the fluid pipe, and a second fluid different from the fluid flows in the second flow channel. This allows for simultaneous heating of the fluid and the second fluid (i.e., simultaneous heating of two different fluids), effectively improving heating efficiency and providing better economic benefits. Attached Figure Description

[0035] Figure 1a A perspective view of the heater according to an embodiment of the present invention is shown.

[0036] Figure 1b A cross-sectional view of the fluid conduit of the heater according to an embodiment of the present invention is shown.

[0037] Figure 1c This diagram shows a cross-section of the fluid conduit of the heater according to an embodiment of the present invention. Figure 2 .

[0038] Figure 2 A perspective view of the fluid conduit of the heater according to an embodiment of the present invention is shown.

[0039] Figure 3 A perspective view of the fluid conduit of a modified embodiment of the heater of this utility model is shown.

[0040] Figure 3a This is a perspective view showing the connection between the fluid conduit and the flexible heating element in a modified embodiment of the heater of this utility model.

[0041] Figure 3b A perspective view showing a fluid conduit connected to a flexible heating element in another manner, according to a modified embodiment of the heater of this utility model.

[0042] Figure 3c This is a perspective view showing the connection between the fluid pipe and the mica heating coil in a modified embodiment of the heater of this utility model.

[0043] Figure 3d A schematic diagram of the resistive sheet of the heater according to an embodiment of the present invention is shown.

[0044] Figure 4 This is a perspective view of the fluid conduit of a modified embodiment two of the heater of this utility model.

[0045] Figure 5 A perspective view of the fluid conduit of a modified embodiment three of the heater of this utility model is shown.

[0046] Figure 6 A perspective view of the fluid conduit of a modified embodiment four of the heater of this utility model is shown.

[0047] Figure 6a This is a perspective view showing the connection between the fluid conduit and the flexible heating element in a modified embodiment four of the heater of this utility model.

[0048] Figure 6b A perspective view showing a modified embodiment four of the heater of this utility model, in which the fluid conduit is connected to a flexible heating element in another manner.

[0049] Figure 6c This is a perspective view showing the connection between the fluid pipe and the mica heating coil in a modified embodiment four of the heater of this utility model.

[0050] Figure 7 A perspective view of the fluid conduit of a modified embodiment five of the heater of this utility model is shown.

[0051] Figure 7a This is a perspective view showing the connection between the fluid conduit and the flexible heating element in a modified embodiment five of the heater of this utility model.

[0052] Figure 7b A perspective view showing a fluid conduit connected to a flexible heating element in another manner in a modified embodiment five of the heater of this utility model.

[0053] Figure 7c This is a perspective view showing the connection between the fluid pipe and the mica heating coil in a modified embodiment five of the heater of this utility model.

[0054] Figure 8 The diagram shows a front view of the fluid conduit of a modified embodiment six of the heater of this invention.

[0055] Figure 9 A top view of the fluid conduit of a modified embodiment seven of the heater of this utility model is shown.

[0056] Explanation of icon numbers:

[0057] 100. Heater;

[0058] 200. Fluid conduit; 210. Inlet; 211. First end of inlet; 212. Second end of inlet; 220. Outlet; 221. First end of outlet; 222. Second end of outlet; 230. Bent pipe section; 231a. First spiral pipe body; 231b. Second spiral pipe body; 231c. Third spiral pipe body; 232. U-shaped pipe body; 2321. First end of U-shaped pipe body; 2322. Second end of U-shaped pipe body; 233. Connecting part; 234. Straight pipe section; 235. Intermediate pipe section; 236. Gap of second spiral pipe body; 240. Outer ring of U-shaped pipe; 250. Inner ring of U-shaped pipe.

[0059] 300. Electric heating element; 310. Flexible heating element; 311. Resistance sheet; 312. Base plate; 313. Resistor; 3131. Straight section; 3132. Bending section; 3133. Connecting section; 320. Mica heating coil;

[0060] 400. Hose, 410. Second flow channel. Detailed Implementation

[0061] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. Although the description of this utility model will be presented in conjunction with preferred embodiments, this does not mean that the features of this utility model are limited to this embodiment. On the contrary, the purpose of describing the utility model in conjunction with the embodiments is to cover other options or modifications that may be derived based on the claims of this utility model. To provide a deep understanding of this utility model, many specific details will be included in the following description. This utility model may also be implemented without using these details. Furthermore, to avoid confusion or obscuring the focus of this utility model, some specific details will be omitted in the description. It should be noted that, without conflict, the embodiments and features in the embodiments of this utility model can be combined with each other.

[0062] It should be noted that in this specification, similar reference numerals and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0063] In the description of this embodiment, it should be noted that the terms "upper", "lower", "inner", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that the utility model product is usually placed in during use. They are only for the convenience of describing the utility model and simplifying the description, and 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. Therefore, they should not be construed as limitations on the utility model.

[0064] The terms “first”, “second”, etc., are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0065] In the description of this embodiment, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set up," "connected," and "linked" 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 embodiment based on the specific circumstances.

[0066] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0067] refer to Figure 1a and Figure 2 This application provides a heater 100, which includes a fluid conduit 200 and an electric heating element 300.

[0068] The fluid conduit 200 includes an inlet 210, an outlet 220, and a bend 230. The inlet 210 is configured to allow fluid (e.g., liquid, gas, or a gas-liquid mixture) to flow into the fluid conduit 200, and the outlet 220 is configured to allow fluid to flow out of the fluid conduit 200. One end of the bend 230 is connected to the inlet 210, and the other end is connected to the outlet 220, and the bend 230 is in fluid communication with both the inlet 210 and the outlet 220.

[0069] The embodiments of this application do not impose specific limitations on the material of the fluid pipe 200. For example, the material of the fluid pipe 200 may be quartz, ceramic, metal pipe or plastic pipe, etc.

[0070] For example, in this embodiment of the application, the fluid flows directly into the fluid pipe 200, that is, the fluid is in contact with the inner wall of the fluid pipe 200. However, this is not the only possibility; see also [reference needed]. Figure 1bIn some possible implementations, a flexible hose 400 (e.g., a plastic hose) can be installed inside the fluid conduit 200. The hose 400 is fixed to the inner wall of the fluid conduit 200 (e.g., the hose is embedded inside the fluid conduit 200), and the fluid flows within the hose 400 (that is, the fluid does not contact the fluid conduit 200). Therefore, in some applications, when a fluid (e.g., a sodium hydroxide solution) is corrosive to the material of the fluid conduit 200 (e.g., quartz), by allowing the fluid to flow within the hose 400 (e.g., a plastic hose), corrosion of the fluid conduit 200 can be avoided, thereby extending the service life of the fluid conduit 200.

[0071] In other possible implementations, the hose 400 can be directly inserted into the fluid pipe 200, meaning the hose 400 is not fixed to the inner wall of the fluid pipe 200. Therefore, in some scenarios where temporary heating of the fluid is required, and the fluid being heated is corrosive to the material of the fluid pipe 200, the hose 400 can be directly inserted into the fluid pipe 200, allowing the fluid to flow within the hose 400. This prevents corrosion of the fluid pipe 200 and extends its service life.

[0072] For example, in this embodiment of the application, the inner walls of the hose 400 and the fluid pipe 200 are fitted together, but this is not a limitation. In other possible implementations, the inner walls of the hose 400 and the fluid pipe 200 may also be spaced apart.

[0073] It is understood that this application does not impose special restrictions on the material of the hose, and can be adapted to the actual application scenario.

[0074] In some other possible implementations, refer to Figure 1c The hose 400 is secured to the inner wall of the fluid conduit 200 by fasteners such as clamps. The outer wall of the hose 400 and the inner wall of the fluid conduit 200 define a second flow channel 410 for the flow of a second fluid. The second fluid in the second flow channel 410 is a different type of fluid from the fluid in the hose 400. For example, in some scenarios, the fluid is corrosive to the fluid conduit 200, while the second fluid is not. In this case, the second fluid can flow in the second flow channel 410, allowing both fluids to flow simultaneously within the hose 400, thus improving the heater's economic efficiency.

[0075] In this embodiment, the inlet 210, outlet 220, and curved tube 230 are integrally formed, but this is not a limitation. In other possible embodiments, the inlet 210, outlet 220, and curved tube 230 may be assembled from three different components.

[0076] For example, continue to refer to Figure 1a The electric heating element 300 is located outside the fluid conduit 200 and surrounds at least a portion of the fluid conduit 200. The electric heating element 300 and the fluid conduit 200 are separable; that is, the electric heating element 300 is not attached to or coated on the wall of the fluid conduit 200. The electric heating element 300 and the fluid conduit 200 are two different components connected together by assembly, winding, or other means. The electric heating element 300 is configured to heat the fluid conduit 200, thereby heating the fluid within the fluid conduit 200.

[0077] Specifically, when the heater 100 is operating, fluid enters the fluid pipe 200 from the inlet 210 and flows through the bend section 230. The electric heating unit 300 heats the bend section 230, thereby heating the fluid flowing through the bend section 230. The heated fluid then flows out of the fluid pipe 200 through the outlet 220. Thus, the heater 100 completes the heating of the fluid flowing through the fluid pipe 200.

[0078] In this embodiment, a curved section 230 is provided in the fluid conduit 200. Compared to a straight fluid conduit, the curved section 230 effectively increases the volume of the fluid conduit 200. For example, for the same volume, the curved section 230 occupies less space than a straight fluid conduit. In other words, by providing the curved section 230, the fluid conduit 200 of this embodiment increases its volume without occupying more space. Therefore, by heating the fluid conduit 200 with the electric heating unit 300, more fluid can be heated simultaneously, effectively improving heating efficiency.

[0079] Since the electric heating element 300 and the fluid pipe 200 in this embodiment are not integrally formed but are detachably disposed, it is convenient to replace and repair the electric heating element 300 when it malfunctions or is damaged. Furthermore, in this embodiment, the electric heating element 300 is disposed on the outside of the fluid pipe 200. On the one hand, the electric heating element 300 and the fluid can be isolated by the pipe wall of the fluid pipe 200, avoiding contact between the fluid and the electric heating element 300, which could lead to a short circuit and ensure heating effect. It also avoids the risk of corrosion of the outer insulation layer of the electric heating element 300 due to prolonged immersion in the fluid. On the other hand, it also facilitates replacement and repair when the electric heating element 300 malfunctions or is damaged.

[0080] The specific structures of the fluid pipe 200 and the electric heating unit 300 are described in detail below with reference to the accompanying drawings.

[0081] refer to Figure 2 and combined Figure 1aIn one possible implementation, the curved section 230 of the fluid conduit 200 includes a first spiral tube body 231a, which is arranged in a disc shape.

[0082] For example, the inlet 210 and outlet 220 of the fluid conduit 200 are both straight pipes, and the inlet 210 and outlet 220 are substantially parallel. The inlet 210 includes a first end 211 and a second end 212. The first end 211 allows fluid to flow into the fluid conduit 200, and the second end 212 connects to the curved pipe section 230. The outlet 220 includes a first end 221 and a second end 222. The first end 221 connects to the curved pipe section 230, and the second end 222 allows fluid to flow out of the fluid conduit 200. It should be noted that "substantially parallel" in this embodiment means that the inlet 210 and outlet 220 are parallel (the angle between the inlet 210 and outlet 220 is 0°), or the inlet 210 is slightly inclined relative to the outlet 220 (i.e., the angle between the inlet 210 and outlet 220 is less than 5°).

[0083] Specifically, the curved tube section 230 extends spirally around the inlet section 210 in plane A starting from the second end 212 of the inlet section 210 and extends to the first end 221 of the outlet section 220 to form a disc-shaped first spiral tube body 231a.

[0084] In other words, in this embodiment, the curved tube portion 230 is located on the same plane, with the inlet portion 210 located in the middle of the curved tube portion 230 and the outlet portion 220 located on the outside of the curved tube portion 230. However, this is not a limitation. In other possible embodiments, the inlet portion 210 may also be located on the outside of the curved tube portion 230, and the outlet portion 220 may be located in the middle of the curved tube portion 230. That is, the first spiral tube body 231a extends from the first end 221 of the outlet portion 220 to the second end 212 of the inlet portion 210. The shape of the first spiral tube body 231a is similar to that of a mosquito coil, and it is also called a mosquito coil-type spiral tube body.

[0085] In this embodiment, the inlet 210 and the outlet 220 are perpendicular to plane A, but this is not the only possibility. In other possible implementations, the inlet 210 and the outlet 220 are inclined relative to plane A.

[0086] Continue to refer to Figure 1aIn this embodiment, the electric heating element 300 is a flexible heating element 310. Specifically, the flexible heating element 310 is wound around and covers the pipe wall of the inlet 210, the pipe wall of the outlet 220, and the pipe wall of the curved pipe section 230 (i.e., the first spiral pipe body 231a). That is, the flexible heating element 310 is wound around the entire pipe wall of the fluid pipe 200. When the heater 100 is working, the flexible heating element 310 dissipates heat to heat the fluid pipe 200 and heats the fluid located in the fluid pipe 200 through heat conduction. Since the flexible heating element 310 is wound around the fluid pipe 200, it can be removed from the fluid pipe 200 to separate the electric heating element 300 from the fluid pipe 200, so as to facilitate replacement or maintenance of the electric heating element 300.

[0087] In other possible embodiments, the flexible heating element 310 is wound only around the wall of the curved tube portion 230, and not around the walls of the inlet portion 210 and the outlet portion 220. In still other possible embodiments, the flexible heating element 310 is wound around the wall of the inlet portion 210 or the outlet portion 220, and also around the wall of the curved tube portion 230.

[0088] For example, in this embodiment of the application, the flexible heating element 310 is a PI heating film (Polyimide Film). By wrapping and covering the wall of the fluid pipe 200 with the PI heating film, the contact area between the PI heating film and the fluid pipe 200 is increased, effectively improving the heating effect on the fluid. Furthermore, since the PI heating film is wrapped around the wall of the fluid pipe 200, it is easy to install and remove.

[0089] The specific type of the flexible heating element 310 is not specifically limited in this application embodiment. For example, in other possible implementations, the flexible heating element 310 can also be a rubber heating tape, PET heating film, FPC heating film, silicone heating film, graphene heating film, rope heating wire, flexible heating band, flexible heating blanket, silicone heating band, resistance wire, or resistance sheet 311 (such as...). Figure 3d One or more of the following (as shown).

[0090] refer to Figure 3d , Figure 3dA schematic diagram of the flattened resistor sheet 311 is shown. Specifically, the resistor sheet 311 includes a flexible substrate 312 and a resistor 313, which is fixedly connected to the substrate 312 by means such as adhesive. Exemplarily, the resistor 313 includes a plurality of straight segments 3131, which are spaced apart along the length direction U of the resistor sheet 311 to form a row of straight segments 3131. Along the length direction U, adjacent straight segments 3131 in the same row are connected by a curved segment 3132, thereby distributing the resistor 313 in a continuous, meandering pattern on the resistor sheet 311 to cover more area of ​​the substrate 312 and improve the heating effect of the resistor sheet 311. Exemplarily, along the width direction V of the resistor sheet 311 (the width direction V is perpendicular to the length direction U), the substrate 312 has two rows of straight segments 3131, and the two rows of straight segments 3131 are connected at their ends by connecting segments 3133.

[0091] In another possible implementation, refer to Figure 2 The flexible heating element 310 is wrapped around the disc-shaped surface of the first spiral tube 321a. Figure 2 The diagram uses only a rectangular flexible heating element 310 (e.g., a PI heating film or a rubber heating tape) to illustrate that the flexible heating element 310 is not wrapped around a single tube, but rather covers the entire curved tube section 230.

[0092] refer to Figure 3 In one possible implementation, the curved tube portion 230 starts from the second end 212 of the inlet portion 210, spirals around the axis X and extends along the axis X, and extends to the first end 221 of the outlet portion 220 to form a cylindrical second spiral tube body 231b.

[0093] In this embodiment, the inlet portion 210 and the outlet portion 220 are perpendicular to the axial direction X, but are not limited thereto. In other possible embodiments, the extending directions of the inlet portion 210 and the outlet portion 220 are inclined relative to the axial direction X.

[0094] For example, refer to Figure 3a In this embodiment, the flexible heating element 310 is wound around and covers the wall of the second spiral tube 231b. Alternatively, refer to... Figure 3b The flexible heating element 310 surrounds and adheres to the cylindrical outer side of the second helical tube 231b to heat the second helical tube 231b and the fluid inside it.

[0095] In another possible implementation, refer to Figure 3cThe electric heating unit 300 can also be a mica heating ring 320. The mica heating ring 320 is cylindrical in shape. It is fitted around the cylindrical outer side of the second spiral tube 231b, meaning it surrounds and adheres to the second spiral tube 231b. The mica heating ring 320 heats the second spiral tube 231b, thereby heating the fluid located within the curved tube section 230. Since the mica heating ring 320 is fitted around the outer side of the second spiral tube 231b, it can be removed to separate the electric heating unit 300 from the fluid conduit 200.

[0096] refer to Figure 4 and combined Figure 3 In one possible implementation, the second spiral tube body 231b of the curved tube portion 230 of the two fluid conduits 200 can also be fitted together. Specifically, refer to Figure 3 Along the axial direction X, the curved section 230 of the fluid conduit 200 has a gap 236 that surrounds the axial direction X and extends spirally along the axial direction X. (See reference) Figure 4 The second spiral tube body 231b of the curved section 230 of one fluid pipe 200 is embedded into the gap 236 of the curved section 230 of another fluid pipe 200, thereby fitting the second spiral tube bodies 231b of the curved sections 230 of the two fluid pipes 200 together. Further, an electric heating element 300 (e.g., a flexible heating element 310 or a mica heating coil) surrounds and adheres to the cylindrical outer side (not shown) of the two second spiral tube bodies 231b. In other words, the electric heating element 300 can simultaneously heat both fluid pipes 200, thereby effectively increasing the amount of fluid heated and improving heating efficiency without increasing space occupancy.

[0097] refer to Figure 5 In another possible implementation, the curved tube portion 230 includes a third spiral tube body 231c. Specifically, starting from the second end 212 of the inlet portion 210, the third spiral tube body 231c spirally surrounds and extends along the circumferential direction R, extending to the first end 221 of the outlet portion 220 to form an annular third spiral tube body 231c. Specifically, in a top view, the annulus in this embodiment is circular, but it is not limited to this. In other possible implementations, the annulus can also be rectangular, pentagonal, or hexagonal, etc.

[0098] For example, in the embodiments of this application, the flexible heating element 310 (not shown) is wound around the wall of the third spiral tube 231c, or the flexible heating element 310 surrounds and adheres to the annular outer side of the third spiral tube 231c to heat the third spiral tube 231c and the fluid inside it.

[0099] By way of example, in other possible implementations, a mica heating coil (not shown) surrounds and adheres to the annular outer side of the third helical tube 231c to heat the third helical tube 231c and the fluid inside it.

[0100] In some other possible embodiments, the curved tube portion 230 includes a fourth helical tube body (not shown), which is tapered. Specifically, starting from the second end 212 of the inlet portion 210, the fourth helical tube body spirals around and extends axially to the first end 221 of the outlet portion 220. Along the axial direction, the helical radius of the fourth helical tube body gradually decreases from one end to the other to form a tapered fourth helical tube body.

[0101] For example, in the embodiments of this application, the flexible heating element 310 (not shown) is wound around and covers the tube wall of the fourth spiral tube, or the flexible heating element 310 surrounds and adheres to the outside of the fourth spiral tube to heat the fourth spiral tube.

[0102] Exemplarily, in other possible implementations, a mica heating coil surrounds and adheres to the conical outer side of the fourth helical tube to heat the fourth helical tube and the fluid inside it.

[0103] refer to Figure 6 In some other possible embodiments, the bent tube section 230 includes seven U-shaped tube bodies 232 and seven connecting portions, each U-shaped tube body 232 including a first end 2321 and a second end 2322. One end of each of the seven connecting portions 233 is connected to the second end 2322 of one of the two adjacent U-shaped tube bodies 232, and the other end is connected to the first end 2321 of the other of the two adjacent U-shaped tube bodies 232.

[0104] For example, the first end 2321 of one of the U-shaped tubes 232 is integrally formed with the inlet 210, and the second end 2322 of the U-shaped tube 232 is connected to the outlet 220 through the connecting part 233.

[0105] For example, in this embodiment of the application, the U-shaped tube 232 is integrally formed with the inlet 210, the outlet 220 and the connecting part 233. However, it is not limited to this. In other possible embodiments, the U-shaped tube 232 and the inlet 210, the outlet 220 and the connecting part 233 may also be assembled together from different components.

[0106] The present application does not impose a specific limitation on the number of U-shaped tubes 232 in the bent tube section 230. For example, in other possible implementations, the number of U-shaped tubes 232 in the bent tube section 230 may be eight, nine, ten or eleven or more.

[0107] Continue to refer to Figure 6 In this embodiment, the seven U-shaped tubes 232 are arranged in a ring array. In this embodiment, the ring is circular from a top view, meaning that the curved tube portion 230 is generally cylindrical. However, it is not limited to this; in other possible embodiments, the ring can also be rectangular, pentagonal, hexagonal, or other shapes.

[0108] For example, refer to Figure 6a In this embodiment of the application, a flexible heating element 310 (not shown in the figure) is wound and wrapped around the wall of the U-shaped tube 232 and the connecting portion 233. Or refer to Figure 6b The flexible heating element 310 surrounds and adheres to the cylindrical outer side (i.e. the outer side of the annular array) of the curved tube section 230 to heat the U-shaped tube body 232 and the connecting part 233 and the fluid inside them.

[0109] Exemplary, in other possible implementations, refer to Figure 6c The mica heating ring 320 surrounds and adheres to the cylindrical outer side (i.e. the outer side of the annular array) of the curved tube section 230 to heat the U-shaped tube body 232, the connecting part 233, and the fluid inside them.

[0110] refer to Figure 7 In some possible implementations, the bent tube portion 230 includes: an outer U-shaped tube 240 and an inner U-shaped tube 250.

[0111] The outer U-shaped tube 240 comprises seven U-shaped tube bodies 232, and adjacent U-shaped tube bodies 232 in the outer U-shaped tube 240 are connected by a connecting part 233. The inner U-shaped tube 250 is located inside the outer U-shaped tube 240 and comprises four U-shaped tube bodies 232, and adjacent U-shaped tube bodies 232 in the inner U-shaped tube 250 are connected by a connecting part 233. Furthermore, one U-shaped tube body 232 in the inner U-shaped tube 250 is connected to one U-shaped tube body 232 in the outer U-shaped tube 240 through the connecting part 233, so that the outer U-shaped tube 240 and the inner U-shaped tube 250 are in communication.

[0112] For example, in this embodiment of the application, the inlet 210 is located in the inner ring 250 of the U-shaped tube and the outlet 220 is located in the outer ring 240 of the U-shaped tube. However, it is not limited to this. In other possible embodiments, the inlet 210 is located in the outer ring 240 of the U-shaped tube and the outlet 220 is located in the inner ring 250 of the U-shaped tube.

[0113] For example, refer to Figure 7a In this embodiment of the application, a flexible heating element 310 (not shown in the figure) is wound and wrapped around the wall of the U-shaped tube 232 and the connecting portion 233. Or refer to Figure 7bThe flexible heating element 310 surrounds and adheres to the outside of the outer ring 240 of the U-tube to heat the U-tube body 232, the connecting part 233 and the fluid inside them.

[0114] For example, refer to Figure 7c In other possible implementations, the mica heating ring 320 surrounds and fits the outside of the outer ring 240 of the U-tube to heat the U-tube body 232, the connecting portion 233 and the fluid inside them.

[0115] In other possible implementations, the U-shaped tubes 232 are arranged in an array along a straight line (not shown in the figure), that is, multiple U-shaped tubes 232 are arranged in a row, and multiple U-shaped tubes 232 and connecting parts 233 are located on the same plane.

[0116] For example, in this embodiment of the application, the flexible heating element 310 is wound around and covered on the wall of the U-shaped tube 232 and the connecting part 233 (not shown in the figure) to heat the U-shaped tube 232 and the connecting part 233.

[0117] refer to Figure 8 In some possible implementations, the curved pipe section 230 includes two straight pipe sections 234, two connecting sections 233, and an intermediate pipe section 235. The straight pipe sections 234 and the intermediate pipe section 235 extend along a first direction Y. Along a second direction Z, the intermediate pipe section 235 is located between the two straight pipe sections 234, and the second direction Z is perpendicular to the first direction Y. Along the second direction Z, one end of the intermediate pipe section 235 is connected to one end of one of the two straight pipe sections 234 through a connecting section 233, and the other end of the intermediate pipe section 235 is connected to one end of the other straight pipe section 234 through a connecting section 233. That is, in this embodiment, the curved pipe section 230 is approximately "N"-shaped, i.e., the curved pipe section 230 in this embodiment is an "N"-shaped curved pipe section.

[0118] The present application does not impose a specific limitation on the number of intermediate tube sections 235 of the curved tube section 230. In other possible implementations, the curved tube section 230 may include two, three, four or five intermediate tube sections 235.

[0119] When the number of intermediate tube sections 235 in the bent tube section 230 is two or more, two adjacent intermediate tube sections 235 are connected by a connecting section 233. And along the second direction Z, two adjacent connecting sections 233 are located at opposite ends of the intermediate tube sections 235.

[0120] For example, when there are two intermediate tube sections 235, the curved tube section 230 is approximately “M” shaped (not shown in the figure), that is, the curved tube section 230 in the embodiment of this application is an “M” shaped curved tube section.

[0121] For example, in this embodiment of the application, a flexible heating element 310 (not shown) is wound around and covered on the tube wall of the straight tube 234, the intermediate tube 235 and the connecting part 233 to heat the straight tube 234, the intermediate tube 235 and the connecting part 233.

[0122] It should be noted that, Figure 8 The projection of the curved tube section 230 shown along the first direction Y is a straight line. That is, Figure 8 The connecting portion 233, the straight portion 234, and the intermediate portion 235 of the curved pipe portion 230 shown are located in the same plane. However, this is not a limitation; in other possible embodiments, the connecting portion 233, the straight portion 234, and the intermediate portion 235 of the curved pipe portion 230 are located in different planes.

[0123] For example, refer to Figure 9 and combined Figure 8 , Figure 9 A top view of the curved tube section 230 along the first direction Y is shown in another possible embodiment. Along the third direction N, the intermediate tube section 235 is located on the same side of the two straight tube sections 234. The third direction N is perpendicular to the first direction Y and the second direction Z. Specifically, compared to... Figure 8 The embodiment shown, Figure 9 The curved tube section 230 shown increases the length along the third direction N, but shortens the length along the second direction Z, thus improving space utilization.

[0124] For example, in the embodiments of this application, a flexible heating element 310 (not shown) is wound around and covered on the pipe wall of the straight pipe section 234, the intermediate pipe section 235 and the connecting section 233, or the flexible heating element 310 is surrounded and attached to the outside of the curved pipe section 230 to heat the straight pipe section 234, the intermediate pipe section 235 and the connecting section 233.

[0125] By way of example, in other possible implementations, a mica heating ring surrounds and adheres to the outside of the bent tube portion 230 to heat the bent tube portion 230.

[0126] Although the present invention has been illustrated and described with reference to certain preferred embodiments, those skilled in the art should understand that the above description is a further detailed explanation of the present invention in conjunction with specific embodiments, and should not be construed as limiting the specific implementation of the present invention to these descriptions. Those skilled in the art can make various changes in form and detail, including some simple deductions or substitutions, without departing from the spirit and scope of the present invention.

Claims

1. A heater characterized by, The application relates to a fluid pipe, comprising: an inlet part configured to allow fluid to flow into the fluid pipe; an outlet part configured to allow fluid to flow out of the fluid pipe; a curved pipe part connected to the inlet part at one end and connected to the outlet part at the other end, the curved pipe part being in fluid communication with the inlet part and the outlet part; an electric heating part located outside the fluid pipe, the electric heating part surrounding at least a portion of the fluid pipe, and the electric heating part being separable from the fluid pipe. The curved pipe part comprises a first spiral pipe body arranged in a disc shape, and the electric heating part is a flexible heating element wrapped around and covering the pipe wall of the first spiral pipe body, or the flexible heating element covers the disc-shaped surface of the first spiral pipe body, or 2. The heater of claim 1, wherein The curved pipe part comprises a second spiral pipe body arranged in a cylindrical shape, and the electric heating part is a flexible heating element wrapped around and covering the pipe wall of the second spiral pipe body, or the flexible heating element surrounds and adheres to the outer side of the cylindrical shape of the second spiral pipe body, or The curved pipe part comprises a third spiral pipe body arranged in a ring shape, and the electric heating part is a flexible heating element wrapped around and covering the pipe wall of the third spiral pipe body, or the flexible heating element surrounds and adheres to the outer side of the ring shape of the third spiral pipe body, or The curved pipe part comprises a third spiral pipe body arranged in a ring shape, and the electric heating part is a flexible heating element wrapped around and covering the pipe wall of the third spiral pipe body, or the flexible heating element surrounds and adheres to the outer side of the ring shape of the third spiral pipe body, or 3. The heater of claim 1, wherein The curved pipe part comprises: a plurality of U-shaped pipe bodies, each of the plurality of U-shaped pipe bodies comprising a first end and a second end; a plurality of connecting parts, each of the plurality of connecting parts being connected at one end to the second end of one of the two adjacent U-shaped pipe bodies and at the other end to the first end of the other of the two adjacent U-shaped pipe bodies.

4. The heater of claim 3, wherein The plurality of U-shaped pipe bodies are arranged in a straight line direction; The electric heating part is a flexible heating element wrapped around and covering the U-shaped pipe body, or the flexible heating element is wrapped around and covering the U-shaped pipe body and the connecting part.

5. The heater of claim 3, wherein The plurality of U-shaped pipe bodies are arranged in a ring shape; The electric heating part is a flexible heating element wrapped around and covering the pipe wall of the U-shaped pipe body, or the flexible heating element surrounds and adheres to the outer side of the ring-shaped array, or the electric heating part is a mica heating ring surrounding and adhering to the outer side of the ring-shaped array.

6. The heater of claim 3, wherein The curved pipe part comprises: a U-shaped pipe outer ring comprising a plurality of U-shaped pipe bodies, and the two adjacent U-shaped pipe bodies in the U-shaped pipe outer ring being connected by the connecting part; a U-shaped pipe inner ring located inside the U-shaped pipe outer ring, the U-shaped pipe inner ring comprising a plurality of U-shaped pipe bodies, and the two adjacent U-shaped pipe bodies in the U-shaped pipe inner ring being connected by the connecting part; One of the U-shaped tube bodies in the inner circle of the U-shaped tubes is connected to one of the U-shaped tube bodies in the outer circle of the U-shaped tubes through the connecting part; The electric heating part is a flexible heating element, which is wound and covered on the tube wall of the U-shaped tube body, or the flexible heating element is wrapped and adhered to the outer side of the outer circle of the U-shaped tubes; or the electric heating part is a mica heating ring, which is wrapped and adhered to the outer side of the outer circle of the U-shaped tubes.

7. The heater of claim 2, wherein The flexible heating element is a PI heating film, a rubber electric heating band, a PET electric heating film, an FPC electric heating film, a silica gel electric heating film, a graphene heating film, a rope type heating wire, a resistance wire, a resistance sheet, a flexible heating band or a flexible heating blanket.

8. The heater of claim 1, wherein, Further comprising: A hose is arranged in the fluid pipeline, and the hose is configured to flow a fluid.

9. The heater of claim 8, wherein, The material of the fluid pipeline is quartz, and the material of the hose is plastic.

10. The heater of claim 9, wherein, The outer wall of the hose and the inner wall of the fluid pipeline define a second flow channel, and the second flow channel is configured to flow a second fluid, which is different from the fluid.

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