Temperature-controllable heating oil pipe
By using polytetrafluoroethylene pipes and multi-layer structure heating and insulating layers in heating oil pipes, the problems of corrosion resistance and poor high and low temperature resistance of existing heating oil pipes are solved, and temperature-controllable constant temperature transportation is achieved, extending service life and reducing costs.
Patent Information
- Application Number
- CN202421754788.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-23
- Publication Date
- 2025-05-09
- Estimated Expiration
- 2034-07-23
AI Technical Summary
The existing heating oil pipes have poor corrosion resistance and high and low temperature resistance, short service life and insufficient insulation performance. They need to be equipped with a separate heating equipment for temperature control, which is costly and low working efficiency.
The polytetrafluoroethylene tube is used as the inner layer to cover the heating layer and the insulating layer, including the first and second fiberglass cloth, heating parts and reflective layers, so as to achieve temperature controllable heating and constant temperature delivery of the oil.
Constant temperature transport of corrosive and high and low temperature fluids is achieved, extending service life, reducing costs, improving working efficiency, and maintaining safety and environmental protection in harsh environments.
Smart Images
Figure CN222848821U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of composite pipes, in particular to a temperature-controllable heating oil pipe. Background Art
[0002] At present, most of the heating oil pipes on the market are made of rubber pipes, which have poor corrosion resistance and resistance to high and low temperature liquids. They are easily damaged during use and have a short lifespan. Frequent replacement increases costs. In addition, the current heating oil pipes have poor thermal insulation performance and require a separate heating device to control the oil temperature before inputting it into the heating oil pipe, which is costly and has low work efficiency. Utility Model Content
[0003] In order to solve the technical defects mentioned in the above background technology, the purpose of the utility model is to provide a temperature-controllable heating oil pipe.
[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:
[0005] A temperature-controllable heating oil pipe comprises a polytetrafluoroethylene tube with an oil delivery channel arranged inside, a heating layer coated on the circumferential side of the polytetrafluoroethylene tube, and an insulating layer coated on the outer circumferential side of the heating layer; the heating layer comprises a first glass fiber cloth, a heating element and a second glass fiber cloth, the first glass fiber cloth is coated on the circumferential side of the polytetrafluoroethylene tube, the second glass fiber cloth is arranged on the circumferential side of the first glass fiber cloth, the heating element is arranged between the first glass fiber cloth and the second glass fiber cloth, and is used for heating and controlling the temperature of the oil in the polytetrafluoroethylene tube; the insulating layer is coated on the circumferential side of the second glass fiber cloth.
[0006] By adopting the above technical solution, the inner layer is a polytetrafluoroethylene tube. Polytetrafluoroethylene has excellent dielectric properties and resistance to chemical corrosion, resistance to high and low temperatures (-70℃~+260℃), good self-lubrication, non-stick and no residue and other properties. Fiberglass cloth is resistant to high and low temperatures and can be used between -196℃~+300℃. It is an electrical insulating material and a heat-insulating material. The heating element can achieve high-temperature heating of the fluid in the pipe to 200℃, and the first fiberglass cloth and the second fiberglass cloth can keep the temperature constant. This temperature-controllable heating oil pipe can transport corrosive and high and low temperature fluids at a constant temperature, can be used for a long time in harsh environments, is easy to load and unload, has high cost performance, and is safe and environmentally friendly.
[0007] Furthermore, the heating element includes a heating belt, a heater and a temperature controller. The heating belt is wrapped around the outer peripheral side of the first glass fiber cloth. The heater is connected to the heating belt to transport heat. The temperature controller is electrically connected to the heater to control the heater to ensure constant temperature of the fluid in the pipe and improve temperature control accuracy and efficiency.
[0008] Furthermore, a steel wire braided layer is provided between the polytetrafluoroethylene tube and the first glass fiber cloth, and the steel wire braided layer is coated on the outer peripheral side of the polytetrafluoroethylene tube, which can increase the pressure and speed of the fluid in the tube.
[0009] Furthermore, at least one reflective layer is wound around the outer circumference of the second glass fiber cloth, and the reflective layer is configured as a wool felt structure. The reflective layer can reduce radiation to a minimum and reduce heat loss.
[0010] Furthermore, the insulating layer includes an insulating tape and a mesh sleeve. The insulating tape is wound around the circumferential side of the second glass fiber cloth, and the mesh sleeve is sleeved on the outer circumferential side of the insulating tape to fix the polytetrafluoroethylene tube, the heating layer and the insulating tape. The mesh sleeve fixes the above layers together to form a composite tube as a whole, which is convenient for people to move the whole tube without looseness. The mesh sleeve has very strong wear resistance, which greatly reduces the wear of the tube body and the contact object when dragging. This combination can not only insulate and prevent leakage, but also be hand-held and non-slip. It has sufficient mechanical properties and excellent flexibility.
[0011] Furthermore, both ends of the temperature-controllable heating oil pipe are fixedly provided with a joint, and the joint is used for detachable connection with the external structure, which not only ensures safety during work, but also enables quick external connection, is very labor-saving, and is environmentally friendly and reliable.
[0012] In summary, the beneficial effects of the utility model are:
[0013] The utility model has a polytetrafluoroethylene tube as the inner layer. Polytetrafluoroethylene has excellent dielectric properties and resistance to chemical corrosion, resistance to high and low temperatures (-70°C to +260°C), good self-lubrication, and no sticking and no residue. The glass fiber cloth is resistant to high and low temperatures and can be used between -196°C and +300°C. It is an electrical insulating material and a heat-insulating material. The heating element can achieve high-temperature heating of the fluid in the tube to 200°C, and the first glass fiber cloth and the second glass fiber cloth can keep the temperature constant. This temperature-controllable heating oil pipe can transport corrosive and high and low temperature fluids at a constant temperature, can be used for a long time in harsh environments, is easy to load and unload, has a high cost-effectiveness, and is safe and environmentally friendly. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 It is a schematic cross-sectional structure diagram of an embodiment of the temperature-controllable heating oil pipe of the utility model.
[0015] Figure 2 The utility model is a schematic structural diagram of an embodiment of a temperature-controllable heating oil pipe installed with a quick connector.
[0016] Figure 3 The utility model is a schematic structural diagram of an embodiment of a temperature-controllable heating oil pipe installed with a flexible joint.
[0017] Figure 4 The utility model is a schematic structural diagram of an embodiment of a temperature-controllable heating oil pipe installed with a threaded joint.
[0018] Figure 5 The utility model is a schematic structural diagram of an embodiment of a temperature-controllable heating oil pipe installed with a flange joint.
[0019] Description of reference numerals in the figures:
[0020] 1. Temperature-controllable heating oil pipe; 2. Polytetrafluoroethylene tube; 3. Heating layer; 31. First glass fiber cloth; 32. Heating belt; 33. Second glass fiber cloth; 4. Insulating layer; 41. Insulating tape; 42. Mesh; 5. Steel wire braided layer; 6. Reflective layer; 7. Connector; 71. Quick connect; 72. Flexible joint; 73. Threaded connector; 74. Flange connector. DETAILED DESCRIPTION
[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field belong to the scope of protection of the utility model.
[0022] Those skilled in the art should understand that, in the disclosure of the present invention, the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the above terms should not be understood as limiting the present invention.
[0023] In the description of the utility model, if there is a word description such as "several", it means one or more, and the meaning of "more" is two or more. Greater than, less than, and more than are understood to exclude the number itself, and above, below, and within are understood to include the number itself. If there is a description of the first, second, and third, it is only used to distinguish the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.
[0024] The following is combined with Figure 1-5 , the embodiments of the utility model are further described in detail.
[0025] A temperature-controllable heating oil pipe 1, such as Figure 1 As shown, it includes a polytetrafluoroethylene tube 2 with an oil delivery channel arranged inside, a heating layer 3 coated on the circumferential side of the polytetrafluoroethylene tube 2, and an insulating layer 4 coated on the outer circumferential side of the heating layer 3. The heating layer 3 includes a first glass fiber cloth 31, a heating element and a second glass fiber cloth 33. The first glass fiber cloth 31 is coated on the circumferential side of the polytetrafluoroethylene tube 2, and the second glass fiber cloth 33 is arranged on the circumferential side of the first glass fiber cloth 31. The heating element is arranged between the first glass fiber cloth 31 and the second glass fiber cloth 33, and is used to heat and control the temperature of the oil in the polytetrafluoroethylene tube 2. The insulating layer 4 is coated on the circumferential side of the second glass fiber cloth 33 to improve safety.
[0026] The inner layer of the tube is a polytetrafluoroethylene tube 2. Polytetrafluoroethylene has excellent dielectric properties and resistance to chemical corrosion, resistance to high and low temperatures (-70°C to +260°C), good self-lubrication, and no sticking and no residue. Glass fiber cloth is resistant to high and low temperatures and can be used between -196°C and +300°C. It is an electrical insulating material and a heat-insulating material. The heating element can achieve high-temperature heating of the fluid in the tube to 200°C, and the first glass fiber cloth 31 and the second glass fiber cloth 33 can keep the temperature constant. This temperature-controllable heating oil pipe 1 can transport corrosive and high and low temperature fluids at a constant temperature, can be used for a long time in harsh environments, is easy to load and unload, has a high cost-effectiveness, and is safe and environmentally friendly.
[0027] In this embodiment, the heating element includes a heating belt 32, a heater and a temperature controller. The heating belt is wound around the outer circumference of the first glass fiber cloth 31. The heater is connected to the heating belt to transfer heat. The temperature controller is electrically connected to the heater to control the heater, thereby ensuring a constant temperature of the fluid in the pipe and improving the temperature control accuracy and efficiency. The heater and the temperature controller are not shown in the figure.
[0028] A steel wire braided layer 5 is further provided between the polytetrafluoroethylene tube 2 and the first glass fiber cloth 31 . The steel wire braided layer 5 is coated on the outer peripheral side of the polytetrafluoroethylene tube 2 , and can increase the pressure and speed of the fluid in the tube.
[0029] At least one reflective layer 6 is wound around the outer circumference of the second glass fiber cloth 33, and the reflective layer 6 is set as a wool felt structure. The reflective layer 6 can reduce radiation to a minimum and reduce heat loss. In this embodiment, two layers of wool felt reflective layers 6 are set to improve the heat preservation effect.
[0030] In this embodiment, the insulating layer 4 includes an insulating tape 41 and a mesh sleeve 42. The insulating tape 41 is wound around the circumferential side of the second glass fiber cloth 33, and the mesh sleeve 42 is sleeved on the outer circumferential side of the insulating tape 41 to fix the polytetrafluoroethylene tube 2, the heating layer 3 and the insulating tape 41. The mesh sleeve 42 fixes the above layers together to form a composite tube as a whole, which is convenient for people to move the whole tube without looseness. Among them, the mesh sleeve 42 can be made of PET. The mesh sleeve 42 has very strong wear resistance, which greatly reduces the wear of the tube body and the contact object during dragging. This combination can not only insulate and prevent leakage, but also be hand-held and non-slip, and has sufficient mechanical properties and excellent flexibility.
[0031] In this embodiment, both ends of the temperature-controllable heating oil pipe 1 are fixedly provided with a joint 7, and the joint 7 is used for detachable connection with the external structure, which not only ensures safety during work, but also enables quick external connection, is very labor-saving, and is environmentally friendly and reliable.
[0032] For details, please refer to Figure 2 , Figure 3 , Figure 4 , Figure 5 The joint 7 can be made of a PVC heat shrink tube, and the hose and the joint 7 are ensured to be integrated by buckling. The end of the joint 7 away from the tube can be equipped with various joints 7, such as quick joints 71, union joints 72, threaded joints 73 or flange joints 74, so as to achieve rapid installation and removal with external equipment, which is very labor-saving, environmentally friendly and reliable, and more efficient.
[0033] The production steps of the temperature-controllable heating oil pipe 1 are as follows.
[0034] First, a polytetrafluoroethylene tube 2 is manufactured by a tube pushing machine;
[0035] The second step is to weave the stainless steel wire onto the outer surface of the polytetrafluoroethylene tube 2 through a braiding machine to produce a polytetrafluoroethylene braided tube;
[0036] The third step is to wrap a layer of first glass fiber cloth 31 around the outer surface of the polytetrafluoroethylene braided tube;
[0037] Step 4: Wrap a self-controlling temperature silicone heating belt around the first glass fiber cloth 31, and then wrap a second glass fiber cloth 33;
[0038] Step 5: wrap two layers of wool felt reflective layer 6 around the outer surface of the second glass fiber cloth 33;
[0039] Step 6: Wrap the outer surface of the two layers of wool felt reflective layer 6 with insulating tape 41, then put on the PET mesh sleeve 42, put on PVC heat shrink tubes at both ends as joints 7, and fix them with heat shrink using a hair dryer;
[0040] Finally, various (quick) connectors 7 at both ends are crimped onto the composite pipe by a crimping machine.
[0041] The embodiments of this specific implementation are all preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. The same components are represented by the same figure marks. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the protection scope of the present application.
Claims
1. A temperature-controllable heating oil pipe (1), characterized in that: The invention comprises a polytetrafluoroethylene tube (2) having an oil delivery channel arranged therein, a heating layer (3) coated on the circumferential side of the polytetrafluoroethylene tube (2), and an insulating layer (4) coated on the outer circumferential side of the heating layer (3); the heating layer (3) comprises a first glass fiber cloth (31), a heating element and a second glass fiber cloth (33); the first glass fiber cloth (31) is coated on the circumferential side of the polytetrafluoroethylene tube (2); the second glass fiber cloth (33) is arranged on the circumferential side of the first glass fiber cloth (31); the heating element is arranged between the first glass fiber cloth (31) and the second glass fiber cloth (33) and is used for heating and controlling the temperature of the oil in the polytetrafluoroethylene tube (2); the insulating layer (4) is coated on the circumferential side of the second glass fiber cloth (33).
2. The temperature-controllable heating oil pipe (1) according to claim 1, characterized in that: The heating element comprises a heating belt (32), a heater and a temperature controller, the heating belt (32) is wound around the outer peripheral side of the first glass fiber cloth (31), the heater is connected to the heating belt (32) to transfer heat, and the temperature controller is electrically connected to the heater to control the heater.
3. The temperature-controllable heating oil pipe (1) according to claim 1, characterized in that: A steel wire braided layer (5) is further provided between the polytetrafluoroethylene tube (2) and the first glass fiber cloth (31), and the steel wire braided layer (5) is coated on the outer peripheral side of the polytetrafluoroethylene tube (2).
4. The temperature-controllable heating oil pipe (1) according to claim 1, characterized in that: At least one reflective layer (6) is wound around the outer peripheral side of the second glass fiber cloth (33), and the reflective layer (6) is configured as a wool felt structure.
5. The temperature-controllable heating oil pipe (1) according to claim 1, characterized in that: The insulating layer (4) comprises an insulating tape (41) and a mesh sleeve (42); the insulating tape (41) is wound around the circumference of the second glass fiber cloth (33), and the mesh sleeve (42) is sleeved on the outer circumference of the insulating tape (41) to fix the polytetrafluoroethylene tube (2), the heating layer (3) and the insulating tape (41).
6. The temperature-controllable heating oil pipe (1) according to claim 1, characterized in that: A joint (7) is fixedly provided at both ends of the temperature-controllable heating oil pipe (1), and the joint (7) is used for detachable connection with an external structure.