Novel sleeve structure heating pipe
By using an insulated hollow bracket in the heating pipe to wrap the heating wire and fill the insulating filler powder, the problem of insufficient size and sealing of the traditional mica heating ring is solved, and efficient heating and stable operation are achieved.
Patent Information
- Application Number
- CN202421572812.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-04
- Publication Date
- 2025-05-02
- Estimated Expiration
- 2034-07-04
AI Technical Summary
The traditional mica heating ring has insufficient size and sealing properties, which makes it difficult to achieve power and temperature and easily lead to thermal energy loss.
An insulating hollow bracket is arranged between the metal shell and the metal inner shell, the heating wire is spirally wound, and the insulation and powder are filled on the outside to form a closed structure to improve heating efficiency and sealing.
It achieves a sufficiently high temperature and power supply in small sizes, avoids heat energy loss caused by dry burning, and improves the sealing and stability of the heating pipe.
Smart Images
Figure CN222827380U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of heating, in particular to a novel heating tube with a sleeve structure. Background Art
[0002] The sleeve-type structure heater is a heater with uniform heat distribution. The shell material is a high-strength metal alloy with excellent thermal conductivity. It has the advantages of long life, good thermal insulation performance, strong mechanical properties, and corrosion resistance. The traditional structure of the mica heating coil requires the square mica plate to be bent during production, and the use space of the internal heating core is limited. Therefore, in order to achieve sufficient power and temperature, the size of the mica heating coil is usually too large, and the sealing of the mica heating coil is poor. When in use, the heat is generally conducted to the surrounding gas through the dry burning of the mica plate. Utility Model Content
[0003] In order to achieve the purpose of the utility model, the technical solution adopted by the utility model is: a new type of sleeve structure heating tube, comprising: a metal outer shell and a metal inner shell, an insulating hollow bracket is arranged between the metal outer shell and the metal inner shell, the insulating hollow bracket is spirally wound with a heating wire, and the insulating hollow bracket and the metal outer shell are filled with insulating filling powder; the spirally wound heating wire is connected to a lead rod extending to the outside of the metal shell, and the lead rod is fixedly connected to the insulating hollow bracket.
[0004] Preferably, the metal outer shell and the metal inner shell are both arranged in a tubular shape, and both ends are fully welded and connected via a bottom cover sheet.
[0005] Preferably, the insulating hollow frame is provided with a plurality of through holes.
[0006] Preferably, a guide rod and a heating wire are provided in the through hole for screwing and inserting.
[0007] Preferably, a fixed limiting piece is fixedly provided on the outer side of the metal shell.
[0008] Preferably, the lead rod is connected with a wire via a terminal.
[0009] Preferably, the insulating hollow support is made of insulating material.
[0010] Compared with the prior art, the beneficial effects of the utility model are:
[0011] 1. The heating wire is spirally wound on the insulating hollow bracket, which provides good protection and isolation, and has good electrical insulation, thermal conductivity and mechanical strength.
[0012] 2. The insulating hollow bracket is provided with a plurality of through holes, through which the lead rod and the heating wire pass. By screwing the heating wire and the lead rod together, the contact is good, and it is convenient to overlap the wires.
[0013] 3. The outside of the heating wire is filled with insulating filling powder, which has good thermal conductivity and serves the purpose of sufficient insulation.
[0014] 4. The two ends are fully welded through the bottom cover, and the metal outer shell and the metal inner shell form a closed structure, so that the heating tube can work stably for a long time in a liquid environment. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a partial cross-sectional view of the overall structure of the novel sleeve structure heating tube of the utility model;
[0016] Figure 2 The local structure of the new sleeve structure heating tube of the utility model is shown in FIG. Figure 1 ;
[0017] Figure 3 The local structure of the new sleeve structure heating tube of the utility model is shown in FIG. Figure 2 ;
[0018] Figure 4 The local structure of the new sleeve structure heating tube of the utility model is shown in FIG. Figure 3 ;
[0019] Figure 5 This is a top view of the overall structure of the new sleeve structure heating tube of the utility model;
[0020] In the figure: 1. Metal outer shell; 2. Metal inner shell; 3. Insulated hollow bracket; 301, through hole; 4. Heating wire; 5. Insulating filling powder; 6. Lead rod; 7. Bottom cover; 8. Wire; 9. Terminal; 10. Fixed limit plate. 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 without creative work are within the scope of protection of the utility model.
[0022] like Figures 1 to 5 As shown, the utility model provides a technical solution: a novel sleeve structure heating tube, comprising: a metal outer shell 1 and a metal inner shell 2, the metal outer shell 1 and the metal inner shell 2 are both arranged in a tubular shape, and the metal outer shell 1 and the metal inner shell 2 are arranged coaxially.
[0023] A fixed stopper 10 is fixedly arranged on the outer side of the metal shell 1. The fixed stopper 10 is designed in a non-heating area of the wire entry end of the metal shell 1 to facilitate installation and disassembly of the sleeve structure.
[0024] The metal shell 1 may be welded with structures such as limiting plates or limiting screws to achieve a stable and fixed effect.
[0025] An insulating hollow bracket 3 is arranged between the metal outer shell 1 and the metal inner shell 2, and the insulating hollow bracket 3 is made of insulating material.
[0026] The insulating hollow support 3 may be made of insulating materials including but not limited to magnesium oxide, silicon nitride, boron nitride, etc., and has excellent electrical insulation, thermal conductivity and mechanical strength.
[0027] The insulating hollow support 3 is spirally wound with a heating wire 4, and the wound heating wire 4 forms a heating coil. The two ends of the heating coil can be customized for power distribution, and the power ratio of the heating area can be customized.
[0028] The insulating hollow frame is provided with a plurality of through holes 301, and the plurality of through holes 301 can be used to place temperature measuring elements.
[0029] The metal outer shell 1 and the metal inner shell 2 are fully welded at both ends through the bottom cover 7 to realize the overall tubular setting of the heating tube, and are provided with a through hole 11, which plays a good role in protecting and isolating the insulating hollow bracket 3 and the heating wire 4, and has good sealing performance.
[0030] The spirally wound heating wire 4 is connected to a lead rod 6 extending to the outside of the metal shell 1 , the lead rod 6 is fixedly connected to the insulating hollow bracket 3 , the lead rod 6 and the heating wire 4 are screwed together and inserted into the through hole 301 , and the lead rod 6 is connected to a wire through a terminal.
[0031] By screwing the heating wire 4 and the lead rod 6 together, the contact is good, which is convenient for overlapping the wire 8. The insulating hollow bracket 3 and the metal shell 1 are filled with insulating filling powder 5, and the outside of the heating wire 4 is filled with high-temperature insulating filling powder 5, which has good thermal conductivity and serves the purpose of sufficient insulation.
[0032] The novel sleeve structure heating tube proposed in this patent designs a novel heating core structure, adopts the method of winding the heating wire 4 around the hollow core rod, and the outer layer adopts a high-strength metal alloy as the conductive heating layer.
[0033] The insulating hollow bracket 3 structure enables it to have better insulation and heat resistance, and the size can also be smaller. It can still have sufficiently high temperature and power in a small size. While inheriting the advantages of traditional mica heating coils, this design can closely fit the heat conduction for tube-type scenarios and avoid heat energy loss caused by dry burning.
[0034] During operation, the heating wire 4 drives the high-level insulating filling powder 5 to heat, and the high-temperature insulating filling powder 5 drives the metal shell 1 to perform metal heating treatment, closely fitting and conducting heat to avoid heat energy loss caused by dry burning.
[0035] The embodiments disclosed in the present utility model are preferred embodiments, but are not limited thereto. Ordinary technicians in this field can easily understand the spirit of the present utility model based on the above embodiments and make different extensions and changes. However, as long as they do not deviate from the spirit of the present utility model, they are all within the protection scope of the present utility model.
Claims
1. A new type of sleeve structure heating tube, characterized in that: include: A metal outer shell and a metal inner shell, an insulating hollow bracket is arranged between the metal outer shell and the metal inner shell, the insulating hollow bracket is spirally wound with a heating wire, and insulating filling powder is filled between the insulating hollow bracket and the metal outer shell; the spirally wound heating wire is connected to a lead rod extending to the outside of the metal outer shell, and the lead rod is fixedly connected to the insulating hollow bracket.
2. The novel sleeve structure heating tube according to claim 1 is characterized in that: The metal outer shell and the metal inner shell are both arranged in a tubular shape, and both ends are fully welded and connected via a bottom sealing sheet.
3. The novel sleeve structure heating tube according to claim 1 is characterized in that: The insulating hollow frame is provided with a plurality of through holes.
4. The novel sleeve structure heating tube according to claim 1 is characterized in that: The pair of through holes are provided with guide rods and heating wires which are screwed and inserted therein.
5. The novel sleeve structure heating tube according to claim 1 is characterized in that: A fixed limiting piece is fixedly arranged on the outer side of the metal shell.
6. The novel sleeve structure heating tube according to claim 1 is characterized in that: The lead rod is connected with a wire through a terminal.
7. The novel sleeve structure heating tube according to claim 5 is characterized in that: The insulating hollow support is made of insulating material.