High-temperature heat insulation device for cable
By isolating the cable from the high-temperature heat source using a disc-type thermal insulation rack, the problem of insulation drop and short circuit in the industrial site due to close to the high-temperature heat source is solved, and effective insulation effect and convenient maintenance are achieved.
Patent Information
- Application Number
- CN202421349665.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-13
- Publication Date
- 2025-05-02
- Estimated Expiration
- 2034-06-13
AI Technical Summary
In industrial sites, cables are insulated and short-circuited due to close to high-temperature heat sources, and the prior art is difficult to effectively protect.
The cable is protected by a disc-type thermal insulation rack with a simple structure and compact size. The cable is isolated from the high-temperature heat source through the design of the thermal insulation rack, and avoid the use of other thermal insulation materials to wrap the cable tube.
It effectively prevents cable insulation drop and short circuit, and the device is simple in structure, low in production cost, and is easy to maintain and install.
Smart Images
Figure CN222826920U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of electrical cable protection, in particular to a high-temperature heat insulation device for a cable. Background Art
[0002] At present, in domestic industrial enterprises and markets, electrical cables are laid out on site in many places with high-temperature heat sources. Many cables are inevitably laid close to the surface of the heat source due to the arrangement of measuring points and the direction of the cables.
[0003] Although high temperature resistant plastic protective hoses have appeared on the market in recent years, they can only delay the aging time of the cable protective hoses due to high temperature, and cannot provide good protection for the cables inside the cable tubes.
[0004] In order to keep the cables away from high-temperature heat sources as much as possible, cable troughs or bridges are specially set up for a certain cable, or insulation layers are added to the cables, which will complicate the lines near the equipment and affect daily maintenance and inspection. There are still many unsafe phenomena such as insulation degradation and short circuits of cables laid close to high-temperature heat source equipment due to high temperature at industrial sites.
[0005] At present, in the on-site applications of industrial enterprises, there are no products that can protect cables laid close to the surface of heat sources, so we need to propose a high-temperature heat insulation device for cables. Utility Model Content
[0006] The purpose of the utility model is to provide a high-temperature thermal insulation device for cables, which adopts a disc-shaped insulation frame with a simple structure and small size to protect the cables. There is no need to use other insulation materials to wrap the cable tube, thereby avoiding the problems of inconvenient use and maintenance of the cable tube and unsightly appearance, and effectively preventing the cable tube in the industrial site from being close to the heat source such as the high-temperature pipeline, causing the cable insulation to decrease, and even causing a short circuit. In summary, the device has a simple structure, a small size, a low production cost, and a good thermal insulation effect on the cable tube, which solves the problem of protecting the cable near the high-temperature heat source equipment in the industrial site, so as to solve the problems raised in the above-mentioned background technology.
[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a high-temperature thermal insulation device for a cable, comprising an insulation frame for supporting a cable tube and isolating the cable tube from a high-temperature heat source device, the insulation frame being a disc-shaped insulation frame, a mounting hole being provided at the center of the insulation frame, a support sleeve for placing the cable tube being inserted into the interior of the mounting hole, a clearance groove being provided on the side of the insulation frame and communicating with the mounting hole, and a notch being provided on the support sleeve and being aligned with the clearance groove.
[0008] Preferably, the thermal insulation frame is configured as a deformable and high temperature resistant plastic frame, and both side surfaces of the thermal insulation frame are smooth arc-shaped concave surfaces.
[0009] Preferably, a plurality of heat dissipation holes are provided on the side of the thermal insulation frame, and the plurality of heat dissipation holes are equidistantly arranged in a ring shape with the mounting hole as the center.
[0010] Preferably, the side wall of the notch is aligned with the side wall of the clearance groove.
[0011] Compared with the prior art, the beneficial effects of the utility model are:
[0012] The utility model adopts a disc-shaped insulation frame with a simple structure and small size to protect the cable. There is no need to use other insulation materials to wrap the cable tube, which avoids the problems of inconvenient use and maintenance of the cable tube and unsightly appearance. It can also effectively prevent the cable tube in the industrial site from being close to the heat source such as the high-temperature pipeline, causing the cable insulation to decrease and even causing a short circuit. In summary, the device has a simple structure, a small size, a low production cost, and a good insulation effect on the cable tube, which solves the problem of protecting the cable near the high-temperature heat source equipment in the industrial site. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 It is a structural schematic diagram of the utility model;
[0014] Figure 2 It is an exploded view of the utility model;
[0015] Figure 3 This is an application effect diagram of the utility model.
[0016] In the figure: 1. Insulation frame; 11. Heat dissipation hole; 12. Make way groove; 13. Mounting hole; 2. Support sleeve; 21. Notch. DETAILED DESCRIPTION
[0017] 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.
[0018] See also Figure 1-3 The utility model provides a technical solution: a high-temperature heat insulation device for a cable, comprising a heat insulation frame 1 for supporting a cable tube and isolating the cable tube from a high-temperature heat source device, the heat insulation frame 1 is set as a disc-shaped heat insulation frame, and the disc-shaped heat insulation frame 1 is conducive to maintaining a minimum contact area with the high-temperature heat source in all directions, thereby minimizing heat conduction;
[0019] A mounting hole 13 is provided at the center of the insulation frame 1, and a support sleeve 2 for placing a cable tube is inserted into the mounting hole 13. A clearance groove 12 connected to the mounting hole 13 is provided on the side of the insulation frame 1, and a notch 21 aligned with the clearance groove 12 is provided on the support sleeve 2.
[0020] The heat-insulating frame 1 is a deformable and high-temperature-resistant plastic frame, and both side surfaces of the heat-insulating frame 1 are smooth arc-shaped concave surfaces.
[0021] The disc-shaped heat insulation frame 1 is designed to maintain a minimum contact area with the high-temperature heat source in multiple directions, effectively reducing heat conduction. This design is crucial to preventing the high-temperature heat source from directly causing heat damage to the cable pipe.
[0022] The heat-insulating frame 1 is made of high-temperature resistant plastic material, which can maintain stability and deformation performance in a high-temperature environment, which helps to maintain the structural integrity of the device and prevent deformation or damage caused by high temperature.
[0023] The mounting hole 13 at the center of the insulation frame 1, the lateral recess 12, and the notch 21 on the support sleeve 2 make the installation and removal of the cable tube simple and quick, and facilitate the maintenance and replacement of the device.
[0024] High-temperature resistant materials such as polyphenylene sulfide (PPS) and polyetheretherketone (PEEK) are selected. These materials have good heat resistance and mechanical properties, can remain stable in high-temperature environments, and are not prone to decomposition or cross-linking reactions, which helps to improve the reliability and service life of the device.
[0025] In summary, the design of this cable high temperature insulation device takes into account the thermal isolation effect, structural stability, installation and maintenance convenience, material selection and other aspects, and has obvious beneficial effects. These designs help to improve the reliability and service life of the device, while facilitating installation and maintenance work.
[0026] Specifically, the material of the thermal insulation frame 1 can be selected from high temperature resistant polyphenylene sulfide (PPS) and polyetheretherketone (PEEK), etc., which can still maintain good stability and deformation performance in a high temperature environment.
[0027] The heat resistance of PPS is mainly due to its special molecular structure, which contains phenylthio groups. These groups can remain stable at high temperatures and are not prone to decomposition or cross-linking reactions. The melting point of PPS is generally above 270°C, and the heat deformation temperature can reach above 200°C. In the temperature range below 200°C, PPS can maintain good mechanical and electrical properties; PEEK has a high glass transition temperature (Tg = 143°C) and melting point (Tm = 334°C), its load heat deformation temperature is as high as 316°C, the long-term use temperature is 260°C, and the instantaneous use temperature can reach 300°C.
[0028] The insulation frame 1 also has a certain strength and hardness, and can withstand the natural droop or tension of the cable, and prevent the cable tube high temperature protection device from falling or tilting and losing its protective function;
[0029] The number of installations of this device should be arranged according to the actual situation, so that the cable tube does not contact the high-temperature heat source; the size of the cable fixing groove should be designed according to the diameter of the different cable hoses to ensure that the cable hoses are just stuck and do not fall off; the cable tube high temperature resistant device adopts a semi-open design (notch 21), and the open side is used to place the cable hose;
[0030] A plurality of heat dissipation holes 11 are provided on the side of the heat insulation frame 1, and the plurality of heat dissipation holes 11 are arranged in a circular manner with the mounting hole 13 as the center. The heat insulation frame 1 has as many heat dissipation holes 11 as possible while ensuring mechanical strength, so as to avoid the cables being laid close to the surface of the high-temperature heat source equipment, to ensure that there is a reasonable distance between the cables and the high-temperature heat source equipment, and to avoid the high-temperature heat source being directly conducted through the cable pipe, but conducted through the air.
[0031] The side wall of the notch 21 is aligned with the side wall of the clearance groove 12 .
[0032] When the equipment with protected cables is in operation, the cable high temperature insulation device can be easily disassembled and installed to avoid affecting the operation of the equipment. The cable high temperature insulation device is clamped on the cable tube, and the shape of the insulation device is reasonable and practical, so that no matter which direction it is installed, the cable can maintain a fixed and appropriate distance from the surface of the high temperature heat source equipment.
[0033] When in use, the cable tube is placed into the support sleeve 2 from the notch 21, and then the support sleeve 2 is inserted from the clearance groove 12 until the support sleeve 2 enters the installation hole 13, thus completing the installation of the cable tube.
[0034] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A high temperature insulation device for a cable, characterized in that: The invention comprises an insulating frame (1) for supporting a cable pipe and isolating the cable pipe from a high-temperature heat source device, wherein the insulating frame (1) is a disc-shaped insulating frame, a mounting hole (13) is provided at the center of the insulating frame (1), a supporting sleeve (2) for placing the cable pipe is inserted into the mounting hole (13), a side edge of the insulating frame (1) is provided with a clearance groove (12) connected to the mounting hole (13), and a notch (21) aligned with the clearance groove (12) is provided on the supporting sleeve (2).
2. A high temperature insulation device for a cable according to claim 1, characterized in that: The heat-insulating frame (1) is a deformable and high-temperature resistant plastic frame, and both side surfaces of the heat-insulating frame (1) are smooth arc-shaped concave surfaces.
3. A high temperature insulation device for a cable according to claim 1, characterized in that: A plurality of heat dissipation holes (11) are provided on the side of the heat-insulating frame (1), and the plurality of heat dissipation holes (11) are arranged in a circular shape at equal intervals with the mounting hole (13) as the center.
4. A high temperature insulation device for a cable according to claim 1, characterized in that: The side wall of the notch (21) is aligned with the side wall of the clearance groove (12).