A heating assembly for heating a metal hose and the metal hose
By installing a detachable heating jacket and an independent temperature controller on the outside of the metal hose, the problems of easy blockage and safety hazards of the metal hose are solved, and uniform heating and rapid fault diagnosis are achieved, improving production continuity and equipment reliability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- QINGDAO BESLAN SEMICONDUCTOR TECHNOLOGY CO LTD
- Filing Date
- 2025-09-22
- Publication Date
- 2026-07-31
AI Technical Summary
Existing metal hoses are prone to blockage due to crystallization of the medium when conveying high-temperature media. Traditional heating structures have insufficient temperature control accuracy, pose electrical safety hazards, and lack rapid fault diagnosis capabilities, affecting production continuity and equipment stability.
It adopts a detachable heating jacket, including a resistance heating layer and an insulating flame-retardant layer, combined with an independent temperature controller and temperature sensor to achieve uniform heating, precise temperature control and rapid fault diagnosis. The flexible heat-conducting layer improves heat transfer efficiency, and the use of Velcro and other connectors facilitates installation and maintenance.
It effectively prevents media crystallization and blockage, improves heating uniformity and safety, simplifies troubleshooting, enhances production continuity and equipment reliability, and extends service life.
Smart Images
Figure CN224583346U_ABST
Abstract
Description
Technical Field
[0001] This application belongs to the field of electric heating, and specifically relates to a heating component and a metal hose for heating a metal hose. Background Technology
[0002] In industrial processes such as semiconductor manufacturing, chemical reactions, and waste gas treatment, high-temperature media containing harmful gases or fine particulate matter are often transported via metal flexible hoses. If the temperature of these media decreases during transport, their components are prone to crystallization or condensation, adhering to the inner wall of the hose, causing blockage, reduced flow, or even system shutdown, severely impacting production continuity and equipment stability. Furthermore, frequent cleaning and maintenance not only increase labor and time costs but may also introduce contamination or mechanical damage during disassembly and reassembly, further affecting system sealing and service life.
[0003] Currently, most common metal hose insulation or anti-clogging measures on the market use external heat tracing or jacketed heating methods. However, traditional heating structures still suffer from insufficient temperature control precision, often relying on overall heating from a certain area or simple segmented control, making it difficult to achieve precise temperature control that matches the characteristics of the medium, easily leading to local overheating or insufficient heating. Secondly, most heating components lack effective insulation and flame-retardant design, posing electrical safety hazards, especially in flammable, explosive, or high-humidity environments where their applicability is poor. Thirdly, common heating jacket materials have poor aging resistance and chemical resistance, and are prone to aging and damage under long-term high temperature and corrosive atmospheres, affecting heating effect and service life. Fourthly, existing devices often lack rapid fault diagnosis and location functions, making troubleshooting difficult and maintenance cycles long once an anomaly occurs.
[0004] Therefore, there is a need for a metal hose heating assembly that is structurally sound, has precise temperature control, is safe and reliable, and is easy to maintain, in order to prevent medium crystallization and blockage, extend the service life of the metal hose, and improve system operating efficiency and safety. Utility Model Content
[0005] This application provides a heating assembly and a metal hose for heating metal hoses, which solves the problem of medium crystallization and blockage in metal hoses.
[0006] The technical solution adopted in this application is as follows:
[0007] A heating assembly for heating metal flexible tubes, comprising:
[0008] A heating jacket is detachably wrapped around the outside of the metal hose to be heated;
[0009] A control unit, electrically connected to the heating jacket, is used for temperature regulation and control of the heating jacket;
[0010] The heating jacket includes a resistance heating layer and an insulating and flame-retardant layer wrapped around the resistance heating layer.
[0011] Preferably, the resistance heating layer includes resistance wires, which are uniformly arranged along the inner wall surface of the insulating and flame-retardant layer.
[0012] Preferably, the heating jacket further includes an internal heat-conducting layer, which is disposed between the resistance heating layer and the metal hose.
[0013] Preferably, the internal heat-conducting layer is a flexible metal heat-conducting sheet or a heat-conducting silicone pad.
[0014] Preferably, the heating jacket is elongated, with its two sides connected by a reusable connector to form a cylindrical structure that wraps around a metal hose.
[0015] Preferably, the connector is a Velcro, snap, or zipper.
[0016] Preferably, the heating assembly further includes a temperature sensor disposed inside the heating jacket. The temperature sensor is configured to detect the surface temperature of the metal hose or the ambient temperature nearby and to feed the signal back to the control unit.
[0017] Preferably, the insulating flame-retardant layer is made of PTFE-impregnated glass fiber cloth.
[0018] Preferably, the control unit includes an independent temperature controller, which is configured to independently set and control the temperature of each heating jacket.
[0019] This application also includes a metal hose, comprising a metal hose body and at least one of the heating components described above, the heating component being wrapped around the outer surface of the metal hose body.
[0020] Due to the adoption of the above technical solution, the beneficial effects achieved by this application are as follows:
[0021] (1) The solution of this application, by setting a heating jacket that can be wrapped around the outside of the flexible hose, enables heat to be applied evenly and directly to the metal hose from the outside, maintaining the pipe wall temperature, effectively preventing the medium from crystallizing and adhering, and preventing harmful gases and particles inside the pipe from crystallizing and adhering due to temperature drop. This solves the problem of easy blockage of metal hoses, reduces the number of downtime cleanings, and improves production continuity. The heating jacket adopts a composite structure of a resistance heating layer and an outer insulating flame-retardant layer. On the one hand, the resistance heating layer achieves efficient electrothermal conversion based on Joule's law, with rapid heating and high thermal efficiency; on the other hand, the outer insulating flame-retardant layer ensures electrical safety in harsh industrial environments such as high temperature and dust, effectively preventing safety accidents caused by leakage or electric sparks, and greatly improving the reliability and safety of the equipment. The heating component of this application adopts a wrap-around heating, with a compact overall structure and strong versatility, and can be adapted to various specifications of metal hoses.
[0022] (2) Setting the resistance heating layer as uniformly arranged resistance wires is beneficial to improving the thermal uniformity during heating, enabling the heating component to form a uniform planar heat source, avoiding local overheating or cold areas, ensuring that the entire wrapped section of the metal hose is heated evenly, thereby more effectively preventing crystallization blockage caused by local low temperature, and avoiding thermal damage to the hose material that may be caused by heat concentration, which is beneficial to extending the service life of the hose and improving the reliability and heating effect of the heating component.
[0023] (3) By setting up independent temperature controllers for independent closed-loop control of each heating jacket, precise and flexible management of the temperature of each heating jacket is achieved. Each heating section of the metal hose can be independently set and adjusted according to its corresponding process requirements, meeting the differentiated heating requirements of different sections in complex systems. Furthermore, setting up independent control modes helps simplify the troubleshooting process. When an abnormality occurs in a certain section, the problem can be quickly located and isolated without affecting the normal operation of other parts, thus improving the overall reliability and maintainability of the system. Attached Figure Description
[0024] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:
[0025] Figure 1 This is a schematic diagram of a metal flexible tube in one embodiment of the present invention;
[0026] Figure 2 This is a schematic diagram of the heating component in one embodiment of the present invention;
[0027] Figure 3 This is a schematic diagram of the resistance wire in one embodiment of the present invention.
[0028] Explanation of reference numerals in the attached figures:
[0029] 1-Metal hose, 2-Heating jacket, 3-Resistance wire, 4-Wiring point, 5-Power supply. Detailed Implementation
[0030] To more clearly illustrate the overall concept of this application, a detailed explanation is provided below with reference to the accompanying drawings.
[0031] Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application may also be implemented in other ways different from those described herein. Therefore, the scope of protection of this application is not limited to the specific embodiments disclosed below. It should be noted that, unless otherwise specified, the embodiments of this application and the features thereof can be combined with each other.
[0032] Furthermore, it should be understood in the description of this application that the terms "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application 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, and therefore should not be construed as a limitation of this application.
[0033] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.
[0034] In this application, unless otherwise expressly specified and limited, the "above" or "below" of the second feature can mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. In the description of this specification, references to terms such as "an embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. 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 can be combined in any suitable manner in one or more embodiments or examples.
[0035] This application provides a heating assembly for heating metal hoses, such as... Figures 1 to 3 As shown, it includes:
[0036] Heating jacket 2 is detachably wrapped around the outside of the metal hose 1 to be heated;
[0037] The control unit is electrically connected to the heating jacket 2 and is used to regulate and control the temperature of the heating jacket 2.
[0038] The heating jacket 2 includes a resistance heating layer and an insulating and flame-retardant layer wrapped around the resistance heating layer.
[0039] This application's solution, by incorporating a heating jacket 2 that can be wrapped around the outside of the flexible metal hose, allows heat to be applied evenly and directly to the flexible metal hose 1 from the outside, maintaining the hose wall temperature, effectively preventing the adhesion of medium crystals, and preventing harmful gases and particulate matter inside the hose from crystallizing and adhering due to temperature drop. This solves the problem of easy clogging of the flexible metal hose 1, reduces downtime for cleaning, and improves production continuity. The heating jacket 2 adopts a composite structure of a resistance heating layer and an outer insulating and flame-retardant layer. On the one hand, the resistance heating layer achieves efficient electrothermal conversion based on Joule's law, resulting in rapid heating and high thermal efficiency; on the other hand, the outer insulating and flame-retardant layer ensures electrical safety in harsh industrial environments such as high temperature and dust, effectively preventing safety accidents caused by leakage or electric sparks, and greatly improving the reliability and safety of the equipment. The heating component of this application adopts a wrap-around heating method, with a compact overall structure and strong versatility, and can be adapted to various specifications of flexible metal hoses 1.
[0040] In one embodiment, the resistance heating layer includes resistance wires 3, which are uniformly arranged along the inner wall surface of the insulating and flame-retardant layer.
[0041] This solution uses uniformly arranged resistance wires 3 as the resistance heating layer, which helps to improve the thermal uniformity during heating. This allows the heating component to form a uniform planar heat source, avoiding local overheating or cold spots. It ensures that the entire wrapped section of the metal hose 1 is heated evenly, thus more effectively preventing crystallization blockage caused by local low temperatures. At the same time, it avoids thermal damage to the hose material that may be caused by concentrated heat, which helps to extend the service life of the hose and improve the reliability and heating effect of the heating component.
[0042] In one embodiment, the heating jacket 2 further includes an internal heat-conducting layer disposed between the resistance heating layer and the metal hose 1.
[0043] This solution optimizes the heat transfer path from the resistance heating layer to the surface of the metal hose 1 by adding an internal heat-conducting layer. The internal heat-conducting layer can efficiently and quickly absorb and diffuse the heat generated by the resistance heating layer, further improving the uniformity of heat distribution, reducing heat loss, and ensuring that heat energy is transferred to the target metal hose 1 more efficiently. This improves the overall heating efficiency and temperature consistency, making the anti-clogging and heat preservation effect more stable and reliable.
[0044] Preferably, the internal heat-conducting layer is a flexible metal heat-conducting sheet or a heat-conducting silicone pad.
[0045] This design employs a flexible metal heat-conducting sheet or a thermally conductive silicone pad as the internal heat-conducting layer. This allows it to combine excellent thermal conductivity with good flexibility and fit, enabling the heating jacket 2 to adapt to metal hoses 1 of different diameters, including accommodating the bends in the hoses. This improves the fit between the heating component and the outer wall of the hose, minimizing contact thermal resistance and enhancing heat transfer efficiency. The flexibility of the internal heat-conducting layer also prevents wear on the hose surface caused by rigid contact, accommodating slight deformation of the metal hose 1 during operation, thus enhancing applicability and durability.
[0046] Understandably, since the heating jacket 2 is wrapped around the metal hose 1, an internal heat-conducting layer is provided on the side that is in contact with the metal hose 1.
[0047] In one embodiment, the heating jacket 2 is elongated, with its two sides connected by a reusable connector to form a cylindrical structure that wraps around the metal hose 1.
[0048] This design simplifies the installation and maintenance of the heating jacket 2 by using a long, cylindrical structure that opens and closes via a connector. Users can complete the installation without disassembling the existing piping system; simply wrap the jacket around the hose and close the connector. This saves installation time and labor costs. It also greatly facilitates subsequent inspection, maintenance, and replacement, improving the product's usability and maintainability.
[0049] The heating jacket 2 is in the shape of a long cylindrical tube. This refers to the shape of the heating jacket 2 when it wraps around the metal hose 1. Alternatively, the heating jacket 2 can always maintain the shape of a long cylindrical tube, with only its ends set as two detachable adhesive sections. When in use, the two ends are glued together, and the effective adhesive length is increased so that it can be tightly wrapped around the metal hose 1 and then glued. This allows it to be quickly fitted and wrapped around the outside of the metal hose 1 and facilitates the storage of the heating jacket 2. Or, as in the aforementioned embodiment, the heating jacket 2 can be in the shape of a long cylindrical tube when wrapped to fit the shape of the metal hose 1 and ensure the heating effect. When disassembling, it can be unfolded into a rectangle by unfastening the adhesive. When in use, it can be rolled up and the two sides glued together, so that only the part that needs to be heated is glued according to the needs, making it a cylindrical wrapping of the part of the metal hose 1 that needs to be heated.
[0050] Preferably, the connector is a Velcro, snap, or zipper.
[0051] Using common and inexpensive components such as Velcro, snaps, or zippers as reusable connectors makes installation and maintenance easy. This type of connector is simple and reliable to operate, can withstand repeated opening and closing, and can adapt to the thermal expansion and contraction of the heating jacket 2 during operation, ensuring that it can be firmly wrapped around the hose under various working conditions. This helps prevent a decrease in heating efficiency or safety hazards due to loosening.
[0052] In one embodiment, the heating assembly further includes a temperature sensor disposed inside the heating jacket 2. The temperature sensor is configured to detect the surface temperature of the metal hose 1 or the ambient temperature nearby and to feed the signal back to the control unit.
[0053] By integrating a temperature sensor and forming a closed-loop feedback control, the system achieves accurate real-time monitoring and intelligent regulation of the temperature of the metal hose 1. The system dynamically adjusts the heating power according to the detected actual temperature, effectively overcoming interference factors such as changes in ambient temperature and fluctuations in medium flow, and accurately stabilizing the hose temperature at the set value, avoiding energy waste and overheating risks, and achieving the dual goals of high-precision temperature control and energy-saving operation.
[0054] Preferably, the insulating and flame-retardant layer is made of PTFE-impregnated fiberglass cloth.
[0055] PTFE-impregnated fiberglass cloth is used as the insulating and flame-retardant layer to enhance the durability and safety of the heating element. This material has excellent high-temperature resistance, superior electrical insulation properties, and inherent flame retardancy. It is also resistant to chemical corrosion and aging, enabling it to operate stably in harsh industrial environments for extended periods. This effectively protects the internal heating element from external chemical corrosion, extends the service life of the heating element, and ensures its safe operation.
[0056] In one embodiment, the control unit includes an independent temperature controller configured to independently set and control the temperature of a single heating jacket 2.
[0057] By setting independent temperature controllers for independent closed-loop control of each heating jacket 2, precise and flexible temperature management of each heating jacket 2 is achieved. Each heating section of the metal hose 1 can be independently set and adjusted according to its corresponding process requirements, meeting the differentiated heating requirements of different sections in a complex system. Furthermore, the independent control mode simplifies the troubleshooting process. When an abnormality occurs in a certain section, the problem can be quickly located and isolated without affecting the normal operation of other parts, thus improving the overall reliability and maintainability of the system.
[0058] This application includes both a wiring terminal 4 and a power supply 5, with the wiring terminal 4 having an independent temperature controller circuit. The heating component is connected to an external power controller via a connecting wire, and the external power controller is connected to the power supply 5. The wiring terminal 4 in the figure also has a circuit for the external power controller to connect to the power supply 5 and a circuit for the external power controller to connect to the resistance wire 3. The power supply 5 in the figure can be understood as an externally input 220V power supply.
[0059] This application also includes a metal hose, comprising a metal hose body and at least one of the above-described heating components, the heating component being wrapped around the outer surface of the metal hose body.
[0060] The metal flexible hose 1, with its integrated heating component, becomes an intelligent delivery unit capable of active heating, heat preservation, and anti-clogging, ensuring the smooth flow and stability of the process medium. Furthermore, it requires no secondary modification by the user; it is ready to use immediately upon installation, offering safety and convenience.
[0061] For any parts not mentioned in this application, existing technologies may be used or referenced.
[0062] The various embodiments in this specification are described in a progressive manner. The same or similar parts between the various embodiments can be referred to each other. Each embodiment focuses on describing the differences from other embodiments.
[0063] The above description is merely an embodiment of this application and is not intended to limit the scope of this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of the claims of this application.
Claims
1. A heating assembly for heating a metal hose, characterized by include: A heating jacket is detachably wrapped around the outside of the metal hose to be heated; A control unit, electrically connected to the heating jacket, is used for temperature regulation and control of the heating jacket; The heating jacket includes a resistance heating layer and an insulating and flame-retardant layer wrapped around the resistance heating layer.
2. The heating assembly for heating metal hoses according to claim 1, characterized in that, The resistance heating layer includes resistance wires, which are evenly arranged along the inner wall of the insulating and flame-retardant layer.
3. The heating assembly for heating metal hoses according to claim 1, characterized in that, The heating jacket also includes an internal heat-conducting layer, which is disposed between the resistance heating layer and the metal hose.
4. The heating assembly for heating metal hoses according to claim 3, characterized in that, The internal heat-conducting layer is a flexible metal heat-conducting sheet or a heat-conducting silicone pad.
5. The heating assembly for heating metal hoses according to claim 1, characterized in that, The heating jacket is long and narrow, with its two sides connected by repeatedly opening and closing connectors to form a cylindrical structure that wraps around a metal hose.
6. The heating assembly for heating metal hoses according to claim 5, characterized in that, The connector is a Velcro, snap, or zipper.
7. The heating assembly for heating metal hoses according to claim 1, characterized in that, The heating assembly also includes a temperature sensor disposed inside the heating jacket. The temperature sensor is configured to detect the surface temperature of the metal hose or the ambient temperature and feed the signal back to the control unit.
8. The heating assembly for heating metal hoses according to claim 1, characterized in that, The insulating and flame-retardant layer is made of PTFE-impregnated fiberglass cloth.
9. The heating assembly for heating metal hoses according to claim 8, characterized in that, The control unit includes an independent temperature controller configured to independently set and control the temperature of each heating jacket.
10. A metal flexible hose, characterized in that, It includes a metal hose body and at least one heating component as described in any one of claims 1-9, the heating component being wrapped around the outer surface of the metal hose body.