Device for heating

Abstract

The utility model relates to the technical field of heating components, and discloses a device for heating. The device for heating comprises a pipe body and a heating piece. The pipe body is a hollow cavity. The heating piece is arranged in the hollow cavity and used for generating heat. According to the device for heating, the pipe body and the flexible heating film are arranged to be of the split structure, and the convenience of installing the flexible heating film on the pipe body is improved. Moreover, the flexible heating film is adopted, and before the flexible heating film is installed in the pipe body, the flexible heating film is firstly processed, so that the overall uniformity of the flexible heating film is improved, and then the heating uniformity is improved. In addition, the shape of the flexible heating film is variable, the flexible heating film can be conveniently installed in the hollow cavity of the pipe body by adjusting the shape of the flexible heating film, then the attaching degree of the flexible heating film and the cavity wall of the hollow cavity can be improved, and the heating effect is further improved. The device is not only suitable for straight pipes, but also suitable for bent pipes or annular pipes and the like.

Description

Technical Field

[0001] The present application relates to the technical field of heating components, for example, to a device for heating. Background Art

[0002] In the related art, a quartz heating tube structure is provided, including a quartz glass tube and a heating film layer, the heating film layer is plated on the outer surface of the quartz glass tube, and the wires are connected to the electricity by silk-screening electrodes on the heating film layer, and the quartz glass tube is provided with an axial heating channel for liquid to pass through. Alternatively, the heating film layer is plated on the inner surface of the quartz glass tube, and the wires are connected to the electricity by silk-screening electrodes on the heating film layer, and the quartz glass tube with the heating film layer plated on the inner surface is placed in another quartz glass outer tube to heat the liquid.

[0003] In the process of implementing the embodiments of the present disclosure, it is found that there are at least the following problems in the related art:

[0004] Two embodiments are disclosed in the related art. One embodiment is that the heating film layer is plated on the outer surface of the quartz glass tube, and the wires are connected to the electricity by silk-screening the electrodes on the heating film layer. In this embodiment, the heating film layer is directly plated and energized on the outer wall of the quartz tube, exposing the heating film layer to the outside, which has a low safety factor. In addition, since the outer wall of the quartz glass tube is cylindrical, the difficulty of coating is increased. Another embodiment is to coat the heating film layer on the inner surface of the quartz glass tube. Due to the small internal space of the quartz tube, on the one hand, the difficulty of operation is increased, and on the other hand, the heating film layer is uneven after coating, which affects the uniformity of heating.

[0005] It should be noted that the information disclosed in the above background technology section is only used to enhance the understanding of the background of the present application, and therefore may include information that does not constitute the prior art known to ordinary technicians in the field. Utility Model Content

[0006] In order to provide a basic understanding of some aspects of the disclosed embodiments, a brief summary is given below. The summary is not an extensive review, nor is it intended to identify key / critical components or delineate the scope of protection of these embodiments, but rather serves as a prelude to the detailed description that follows.

[0007] The embodiments of the present disclosure provide a device for heating, so as to improve the convenience of assembling the device and improve the uniformity of heating.

[0008] In some embodiments, a device for heating is provided, comprising: a tube body, comprising a hollow cavity; a flexible heating film, disposed in the hollow cavity, and used to generate heat.

[0009] Optionally, the flexible heating film comprises a substrate and a heating coating, wherein the heating coating is coated on the surface of the substrate.

[0010] Optionally, the substrate includes a flexible plate body, and the flexible plate body can be rolled.

[0011] Optionally, the device for heating further comprises: electrodes, which are arranged at two ends of the hollow cavity, wherein the electrodes at two ends of the hollow cavity are respectively connected to two ends of the flexible heating film.

[0012] Optionally, the device for heating further comprises: a sealing head, which is arranged on the tube body and located at both ends of the hollow cavity, and the electrodes are passed through the sealing head. The sealing head is used to roll-seal both ends of the tube body.

[0013] Optionally, the device for heating further comprises: a ceramic head, which is arranged at both ends of the hollow cavity and connected to the end cap; and a terminal, which is arranged at both ends of the hollow cavity. The terminal passes through the ceramic head and is connected to the electrode.

[0014] Optionally, the tube body includes an opening, which is arranged on the side wall of the hollow cavity between the electrode and the sealing head, wherein the opening is connected to the hollow cavity, and the opening is used to perform vacuum treatment on the hollow cavity.

[0015] Optionally, the device for heating further comprises an inert medium which is filled into the hollow cavity through an opening on the tube body.

[0016] Optionally, the tube body includes a quartz tube, a glass tube or a ceramic tube.

[0017] Optionally, the shape of the tube body includes a straight tube, a bent tube or a ring tube.

[0018] The device for heating provided by the embodiments of the present disclosure can achieve the following technical effects:

[0019] The device for heating provided by the embodiment of the present disclosure includes: a tube body and a flexible heating film. The tube body includes a hollow cavity, and the flexible heating film is arranged in the hollow cavity, and the flexible heating film is used to generate heat.

[0020] The device for heating provided by the present disclosure improves the convenience of installing the flexible heating film on the tube body by setting the tube body and the flexible heating film as a separate structure. In addition, by adopting the flexible heating film, the shape of the flexible heating film can be changed, and the shape of the flexible heating film can be adjusted to facilitate installation in the hollow cavity of the tube body. Furthermore, compared with the related art, in which the coating is directly applied to the outer wall of the quartz tube, the present application sets the flexible heating film in the hollow cavity, which improves the safety of use. And, compared with the related art, in which the coating is applied to the inner wall of the quartz tube, by adopting the device provided by the present application, the flexible heating film can be processed before the flexible heating film is installed inside the tube body, so as to improve the overall uniformity of the flexible heating film, thereby improving the uniformity of heating. In addition, when the flexible heating film is installed in the hollow cavity, due to its flexible characteristics, it can improve the fit with the cavity wall of the hollow cavity, further improving the heating effect.

[0021] The above general description and the following description are exemplary and explanatory only and are not intended to limit the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] One or more embodiments are exemplarily described by corresponding drawings, which do not limit the embodiments. Elements with the same reference numerals in the drawings are shown as similar elements, and the drawings do not constitute a scale limitation, and wherein:

[0023] Figure 1 is a schematic structural diagram of a device for heating provided by an embodiment of the present disclosure;

[0024] Figure 2 yes Figure 1 A schematic structural diagram of the flexible heating film in the disclosed embodiment in an unfolded state;

[0025] Figure 3 yes Figure 2 A schematic diagram of the structure in which the flexible heating film in the disclosed embodiment is rolled into a cylindrical shape;

[0026] Figure 4 yes Figure 3 A schematic diagram of the installation process of inserting the flexible heating film into the quartz tube in the disclosed embodiment;

[0027] Figure 5 is Figure 4 A schematic diagram of the structure after installing electrodes based on the embodiment shown;

[0028] Figure 6 is Figure 5 A schematic diagram of the structure after the tube body is packaged based on the embodiment shown;

[0029] Figure 7 is Figure 6 A schematic diagram of the structure in which ceramic heads and mica wires are installed at both ends of the tube body based on the embodiment shown;

[0030] Figure 8 is a schematic structural diagram of a U-shaped tube of another device for heating provided in an embodiment of the present disclosure;

[0031] Fig. 9 It is a schematic diagram of the structure of an annular tube of another device for heating provided in an embodiment of the present disclosure.

[0032] Reference numerals:

[0033] 1: Device for heating;

[0034] 100: tube body; 102: hollow cavity;

[0035] 110: flexible heating film; 112: substrate; 114: heating coating;

[0036] 120: electrode;

[0037] 130: Head;

[0038] 140: Ceramic head;

[0039] 150: terminal;

[0040] 160: Open your mouth. DETAILED DESCRIPTION

[0041] In order to be able to understand the features and technical contents of the embodiments of the present disclosure in more detail, the implementation of the embodiments of the present disclosure is described in detail below in conjunction with the accompanying drawings. The attached drawings are for reference only and are not used to limit the embodiments of the present disclosure. In the following technical description, for the convenience of explanation, a full understanding of the disclosed embodiments is provided through multiple details. However, one or more embodiments can still be implemented without these details. In other cases, to simplify the drawings, well-known structures and devices can be simplified for display.

[0042] The terms "first", "second", etc. in the specification and claims of the embodiments of the present disclosure and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the terms used in this way can be interchanged where appropriate, so that the embodiments of the embodiments of the present disclosure described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions.

[0043] In the embodiments of the present disclosure, the terms "upper", "lower", "inside", "middle", "outside", "front", "back" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. These terms are mainly intended to better describe the embodiments of the present disclosure and their embodiments, and are not intended to limit the indicated devices, elements or components to have a specific direction, or to be constructed and operated in a specific direction. Moreover, in addition to being used to indicate directions or positional relationships, some of the above terms may also be used to indicate other meanings. For example, the term "upper" may also be used to indicate a certain dependency or connection relationship in certain circumstances. For those of ordinary skill in the art, the specific meanings of these terms in the embodiments of the present disclosure can be understood according to specific circumstances.

[0044] In addition, the terms "disposed", "connected", and "fixed" should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present disclosure can be understood according to specific circumstances.

[0045] Unless otherwise stated, the term "plurality" means two or more.

[0046] In the embodiment of the present disclosure, the character " / " indicates that the preceding and following objects are in an "or" relationship. For example, A / B indicates: A or B.

[0047] The term "and / or" is a description of the association relationship between objects, indicating that three relationships can exist. For example, A and / or B means: A or B, or, A and B.

[0048] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present disclosure may be combined with each other.

[0049] In some embodiments, in combination Figures 1 to 9 As shown, a device 1 for heating is provided, comprising a tube body 100 and a flexible heating film 110. The tube body 100 comprises a hollow cavity 102. The flexible heating film 110 is disposed in the hollow cavity 102, and the flexible heating film 110 is used to generate heat.

[0050] The heating device 1 provided by the present disclosure improves the convenience of installing the flexible heating film 110 on the tube body 100 by setting the tube body 100 and the flexible heating film 110 as a separate structure. In addition, by adopting the flexible heating film 110, the shape of the flexible heating film 110 can be changed, and the shape of the flexible heating film 110 can be adjusted to facilitate installation in the hollow cavity 102 of the tube body 100. Furthermore, compared with the related art, in which the coating is directly applied on the outer wall of the quartz tube, the present application sets the flexible heating film 110 in the hollow cavity 102, thereby improving the safety of use. And, compared with the related art, in which the coating is applied on the inner wall of the quartz tube, by adopting the device provided by the present application, the flexible heating film 110 can be processed before the flexible heating film 110 is installed inside the tube body 100, so as to improve the overall uniformity of the flexible heating film 110, thereby improving the uniformity of heating. Furthermore, when the flexible heating film 110 is installed in the hollow cavity 102 , due to its flexibility, it can improve the fit with the cavity wall of the hollow cavity 102 , thereby further improving the heating effect.

[0051] Optionally, the tube body 100 has a port communicating with the hollow cavity 102 , and the flexible heating film 110 is installed in the hollow cavity 102 through the port.

[0052] In some embodiments, the flexible heating film 110 is installed in the hollow cavity 102 of the tube body 100 , including: adjusting the shape of the flexible heating film 110 to match the shape of the hollow cavity 102 , and then inserting the flexible heating film 110 into the hollow cavity 102 through the port.

[0053] Exemplarily, the tube body 100 is a cylindrical tube body, and the hollow cavity 102 is a cylindrical cavity. In this way, the flexible heating film 110 is adjusted to a cylindrical shape and inserted into the cylindrical cavity through the port.

[0054] In some embodiments, the installation method of installing the flexible heating film 110 in the hollow cavity 102 of the tube body 100 includes: putting the flexible heating film 110 on the outside of the closed tube body 100, turning on the blower, blowing air in from the outside of the tube body 100, and introducing the air into the tube body 100 through the blower nozzle. The air and the flexible heating film 110 on the outer wall of the tube body 100 generate friction, and this friction will gradually push the flexible heating film 110 into the tube body 100. As the blowing continues, the flexible heating film 110 will gradually be adsorbed on the inner wall of the tube body 100.

[0055] Optionally, combined Figure 2As shown, the flexible heating film 110 includes: a substrate 112 and a heating coating 114. The heating coating 114 is coated on the surface of the substrate 112. In this way, the heating coating 114 can be uniformly cured on the substrate 112, avoiding problems such as bubbles, films, burrs, and adhesion of the heating coating 114 during the coating process, thereby improving the uniformity of the heating coating 114.

[0056] In some embodiments, the heating coating 114 is coated on one surface of the substrate 112. The heating coating 114 only needs to be coated on one surface of the substrate 112, which is simple and convenient to operate, and at the same time, shortens the coating cycle and improves the coating efficiency.

[0057] In some embodiments, the heating coating 114 is coated on both surfaces of the substrate 112. Coating the heating coating 114 on both surfaces of the substrate 112 improves the heat preservation effect, reduces heat loss, and thus improves the heating effect.

[0058] Optionally, the heating coating 114 is an infrared radiation heating film. The infrared radiation heating film is a highly efficient and fast heating material that can quickly convert electrical energy into thermal energy and generate infrared radiation, thereby accelerating the heating speed and improving the heating efficiency.

[0059] Optionally, the heating coating 114 is coated on the substrate 112 and is processed outside the tube body 100. In this way, it can be ensured that the heating coating 114 is more evenly coated on the substrate 112, thereby improving the uniformity of the heating coating 114 coating.

[0060] Optionally, the base 112 includes a flexible plate body, and the flexible plate body can be rolled. In this way, the base 112 can be rolled, so the shape of the base 112 is variable, and the base 112 can adapt to different shapes and curvatures, thereby improving the plasticity of the base 112, and then being able to meet the installation space of the tube body 100 of different shapes, and improving the adaptability of the device.

[0061] In some embodiments, in combination Figure 3 As shown, the flexible heating film 110 is rolled into a cylindrical shape. By rolling the flexible heating film 110 into a cylindrical shape, the heat loss can be reduced, thereby improving the heating efficiency. In addition, the cylindrical design can reduce the wear of the flexible heating film 110, thereby extending the service life of the flexible heating film 110.

[0062] In some embodiments, in combination Figure 3 and Figure 4As shown, the flexible heating film 110 rolled into a cylindrical shape is inserted into the hollow cavity 102 of the tube body 100. By rolling the flexible heating film 110 into a cylindrical shape to match the shape of the hollow cavity 102 of the tube body 100, the shaking of the flexible heating film 110 can be reduced, making it more stable. At the same time, the flexible heating film 110 is inserted into the hollow cavity 102 of the tube body 100, which is convenient to install, thereby improving the convenience of installation.

[0063] Optionally, combined Figure 5 As shown, the device 1 for heating further includes: electrodes 120, which are arranged at both ends of the hollow cavity 102. The electrodes 120 at both ends of the hollow cavity 102 are respectively connected to both ends of the flexible heating film 110. In this way, by connecting the two ends of the flexible heating film 110 to the electrodes 120 at both ends of the hollow cavity 102, when the electrode 120 obtains electrical energy, the electrode 120 transfers the current to the flexible heating film 110, and the flexible heating film 110 converts the electrical energy into thermal energy, so that the flexible heating film 110 generates heat.

[0064] In some embodiments, the electrode 120 includes a metal electrode 120. The metal electrode 120 material includes copper, gold, silver, platinum, palladium, molybdenum and some alloys, which are good conductors of electricity and have the characteristics of anti-oxidation and corrosion resistance, so that the conductivity of the electrode 120 and the working stability of the electrode 120 can be improved.

[0065] In some embodiments, the electrode 120 includes a carbon material electrode 120. The carbon material electrode 120 includes graphite, carbon nanotubes and diamond film. These carbon material electrodes 120 have good electrical conductivity and stable chemical properties, and therefore, can improve the electrical conductivity of the electrode 120 and increase the stability of the electrode 120.

[0066] Optionally, combined Figure 6 As shown, the device 1 for heating also includes: a head 130. The head 130 is arranged on the tube body 100, located at the two ends of the hollow cavity 102, and the electrode 120 is passed through the head 130. Among them, the head 130 is used to roll-seal the two ends of the tube body 100. In this way, by arranging the head 130 at the two ends of the hollow cavity 102 of the tube body 100, the two ends of the hollow cavity 102 of the tube body 100 are rolled and sealed, thereby improving the airtightness of the inside of the tube body 100. At the same time, the electrode 120 will be affected by thermal stress during the heating process, and the head 130 can protect the electrode 120 from damage. In addition, the head 130 can prevent moisture outside the tube body 100 from entering the inside of the tube body 100, affecting the heating effect, and even causing the tube body 100 to burst, thereby improving the heating effect and the safety of the tube body 100.

[0067] Optionally, combined Figure 7As shown, the device 1 for heating also includes: a ceramic head 140. The ceramic head 140 is arranged at both ends of the hollow cavity 102 and is connected to the end cap 130. Terminals 150 are arranged at both ends of the hollow cavity 102. Among them, the terminal 150 passes through the ceramic head 140 and is connected to the electrode 120. In this way, by arranging the ceramic head 140 at both ends of the hollow cavity 102, the electrode 120 can be protected from short circuit, thereby playing a role of insulation protection. In addition, the ceramic head 140 can also play a role of sealing. The terminal 150 is used to connect an external power source to the electrode 120 at both ends of the hollow cavity 102, and transmit current to the electrode 120. At the same time, the terminal 150 can also fix the electrode 120 in the tube body 100 to prevent it from moving or detaching.

[0068] In some embodiments, the terminal 150 is a standard terminal. The standard terminal is usually made of metal materials such as copper or aluminum, and is used to connect an external power source to the electrodes 120 at both ends of the tube body 100. It has good conductivity and stability, thereby improving the stability of current transmission.

[0069] In some embodiments, the terminal 150 is made of high temperature resistant mica wire, which is made of mica material and has high high temperature resistance and can maintain stable electrical characteristics in a high temperature environment, thereby improving the stability of the tube body 100 in a high temperature environment.

[0070] In some embodiments, the ceramic head 140 is encapsulated at both ends of the tube body 100 by using glass sealing glue or silicone. First, holes are punched at both ends of the tube body 100, and then the ceramic head 140 is inserted into both ends of the tube body 100. Finally, the glass sealing glue or silicone is used to fill and seal. In this way, the gas in the tube body 100 can be prevented from leaking out, and the airtightness inside the tube body 100 is improved. At the same time, the ceramic head 140 can be well fixed to the tube body 100.

[0071] Optionally, combined Figure 7 As shown, the tube body 100 includes an opening 160, which is disposed on the side wall of the hollow cavity 102 between the electrode 120 and the end cap 130. The opening 160 is connected to the hollow cavity 102, and the opening 160 is used to evacuate the hollow cavity 102. By evacuating the hollow cavity 102 through the opening 160 on the side wall of the hollow cavity 102, the gas content inside the hollow cavity 102 can be reduced, thereby reducing the influence of the gas on the heating effect, thereby improving the heating efficiency. In addition, evacuation can reduce the residual pressure inside the tube body 100, reduce the pressure limit of the tube body 100, and increase the application range of the tube body 100.

[0072] Optionally, the device 1 for heating further comprises: an inert medium, which is filled into the hollow cavity 102 through the opening 160 on the tube body 100. The inert medium is not easy to react chemically with other substances, has relatively stable chemical properties, and can effectively reduce the oxidation rate of the inner wall of the tube body 100, thereby extending the service life of the tube body 100. At the same time, the inert medium has a high thermal conductivity, and can quickly transfer heat from the flexible heating film 110 to the surface of the tube body 100, thereby increasing the heat transfer performance and improving the heating efficiency. In addition, the inert medium also has a low viscosity and a high fluidity, which can improve the convenience of the filling operation.

[0073] Optionally, the inert medium includes argon, nitrogen, helium, etc. These media have relatively stable chemical properties and are usually used as protective gases.

[0074] Optionally, the tube body 100 includes a quartz tube, a glass tube or a ceramic tube.

[0075] In some embodiments, the tube body 100 includes a quartz tube. Quartz material has good thermal conductivity, so the quartz tube can quickly transfer heat to the heated object, thereby improving the heating efficiency. At the same time, the quartz material has good high temperature resistance, so in a high temperature environment, the quartz tube can maintain a relatively stable heating performance. In addition, the quartz material has good insulation performance, which can effectively prevent safety issues such as electric shock, thereby improving the safety of the quartz tube.

[0076] Furthermore, the quartz tube includes a transparent quartz tube, a ruby ​​quartz tube and a UV filter quartz tube, wherein the infrared heating effect of the ruby ​​quartz tube and the UV filter quartz tube is significantly better than the infrared heating effect of the transparent quartz tube.

[0077] In some embodiments, the tube body 100 includes a glass tube. The glass tube has a relatively fast heating speed and can quickly generate heat, thereby heating the object and improving the heating efficiency. In addition, the glass tube can effectively resist corrosive substances such as acid and alkali, is not easy to age, and can extend the service life of the tube body 100.

[0078] In some embodiments, the tube body 100 includes a ceramic tube. The ceramic tube has good thermal conductivity and can quickly transfer heat to the heated object, thereby improving the heating efficiency. In addition, the ceramic tube also has good high temperature resistance and corrosion resistance, and can work stably in a high temperature and corrosive environment, thereby improving the working stability of the tube body 100.

[0079] Optionally, the shape of the tube body 100 includes a straight tube, a bent tube or a ring tube.

[0080] In some embodiments, in combination Figure 7As shown, the shape of the tube body 100 includes a straight tube. The straight tube has a longer straight portion and is generally used for heating a large area or a long distance. Since the spacing between each position of the straight tube is the same, the heating intensity of each position of the tube body 100 is the same, so the heating is relatively uniform, thereby improving the heating efficiency.

[0081] In some embodiments, the shape of the tube body 100 includes a bent tube. The bent tube can increase the heat exchange area of ​​the tube body 100, improve thermal efficiency, and thus reduce energy waste. In addition, the bent tube can change its shape according to actual needs, which is convenient for installation and use in a narrow space, thereby improving the convenience and flexibility of installation.

[0082] In some embodiments, in combination Figure 8 As shown, the shape of the tube body 100 includes a U-shaped tube. The U-shaped tube has a larger heating area and higher efficiency, and can transfer heat to the heated object in a shorter time.

[0083] In some embodiments, in combination Fig. 9 As shown, the shape of the tube body 100 includes an annular tube. The tube body length of the annular tube is effectively lengthened per unit area, thereby improving the heating efficiency. In addition, the shape of the annular tube is similar to a circle, and is usually used in occasions where it is necessary to surround an object for heating, and is suitable for objects of various shapes. Therefore, the annular tube has a wide range of applications.

[0084] In actual application scenarios, the specific tube shape to be used needs to be further determined based on the specific situation.

[0085] Specifically, combined Figure 7 As shown, before use, the inside of the tube body 100 is evacuated and filled with an inert medium through the opening 160 on the side wall of the tube body 100. When the external power supply is turned on, the terminals 150 at both ends of the tube body 100 are electrically connected to the electrodes 120 at both ends of the tube body 100, and the electric energy is transferred to the electrodes 120 at both ends of the tube body 100. The electrodes 120 at both ends of the tube body 100 are respectively connected to the two ends of the flexible heating film 110, and the current will pass through the flexible heating film 110, and the flexible heating film 110 will convert the electric energy into heat energy, so that the flexible heating film 110 will generate heat, and the flexible heating film 110 will transfer the generated heat to the tube body 100. The tube body 100 has good thermal conductivity and can quickly transfer heat to the heated object, so that the heated object is heated to the required temperature. When the external power supply is disconnected, the current is quickly cut off, and the electrodes 120 at both ends of the tube body 100 cannot transfer the corresponding electrical energy to the flexible heating film 110 in the tube body 100. The flexible heating film 110 cannot generate heat, and the tube body 100 will quickly cool down and stop heating the object.

[0086] The above description and the accompanying drawings sufficiently illustrate the embodiments of the present disclosure to enable those skilled in the art to practice them. Other embodiments may include structural and other changes. The embodiments represent only possible variations. Unless explicitly required, individual components and functions are optional, and the order of operations may vary. Portions and features of some embodiments may be included in or replace portions and features of other embodiments. The embodiments of the present disclosure are not limited to the structures described above and shown in the accompanying drawings, and various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A device for heating, characterized in that include: a tube body, including a hollow cavity; A flexible heating film is disposed in the hollow cavity, and the flexible heating film is used to generate heat; Flexible heating film includes: A substrate, the substrate comprises a flexible plate body, and the flexible plate body can be rolled; A heating coating is applied to the surface of the substrate.

2. The device for heating according to claim 1, characterized in that Also includes: Electrodes are arranged at both ends of the hollow cavity; The electrodes at both ends of the hollow cavity are respectively connected to the two ends of the flexible heating film.

3. The device for heating according to claim 2, characterized in that Also includes: The sealing head is arranged on the tube body and located at both ends of the hollow cavity, and the electrodes are passed through the sealing head; Among them, the head is used to roll and seal the two ends of the pipe body.

4. The device for heating according to claim 3, characterized in that Also includes: Ceramic heads are arranged at both ends of the hollow cavity and connected to the end caps; Terminals are arranged at both ends of the hollow cavity; The terminal passes through the ceramic head and is connected to the electrode.

5. The device for heating according to claim 3, characterized in that The tube body includes an opening, and the opening is arranged on the side wall of the hollow cavity between the electrode and the sealing head; The opening is communicated with the hollow cavity, and the opening is used for performing vacuum treatment on the hollow cavity.

6. The device for heating according to claim 5, characterized in that Also includes: The inert medium is filled into the hollow cavity through the opening of the tube body.

7. The device for heating according to claim 1, characterized in that The tube body includes: Quartz tube, glass tube or ceramic tube.

8. The device for heating according to claim 1, characterized in that The shapes of the tube body include: straight tube, bent tube or annular tube.

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