Detachable portable heat preservation and heat tracing device

By designing a detachable portable insulation heat tracing device, the problem of the SF6 circuit breaker's arc extinguishing ability is reduced in low temperature environments, and the installation and disassembly of the heat tray is simplified through the quick connection mechanism, efficient insulation and rapid maintenance are achieved, and the reliability of power supply in the power grid is improved.

CN119676884AInactive Publication Date: 2025-03-21STATE GRID HENAN ELECTRIC POWER CO XIXIA COUNTY POWER SUPPLY CO
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Patent Information

Application Number
CN202411573151.6
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-11-06
Publication Date
2025-03-21
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

The existing SF6 circuit breaker has reduced arc extinguishing capabilities in low temperature environments, resulting in the inability to operate the equipment. The installation and replacement of traditional tropics are cumbersome and time-consuming, which affects the reliability of the power supply in the power grid.

Method used

A detachable portable thermal insulation heating device is designed, including a clamping body, a thermal insulation cylinder, an air groove, a heat tray, an adjustment gear and a limiting mechanism. The rapid installation and disassembly of the thermal tray is achieved through a quick connection mechanism, and the adjustment gear and a limiting mechanism ensure the stability and safety of the clamping body.

Benefits of technology

The device can effectively maintain the arc extinguishing ability of the SF6 circuit breaker in a low temperature environment, reduce heat loss, improve thermal insulation effect, and simplify the installation and disassembly of the heat ties through the quick connection mechanism, significantly shorten the maintenance time, and improve the reliability of power supply in the power grid.

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Abstract

The invention relates to a detachable portable heat preservation heat tracing device which comprises a clamping body, the clamping body comprises half clamping seats which are symmetrically arranged, a heat preservation cylinder is arranged in the middle of each half clamping seat, an empty groove is formed in each heat preservation cylinder, a heat tracing belt is arranged in each empty groove, and positioning rings are arranged at the front end and the rear end of each half clamping seat. An adjusting gear is arranged in the positioning ring at the front end, an outer positioning arc piece is arranged on the upper side of the adjusting gear in a meshed mode, an inner positioning arc piece is arranged on the lower side of the adjusting gear in a meshed mode, positioning holes are formed in the positioning ring at the rear end, and the positioning holes correspond to the outer positioning arc piece and the inner positioning arc piece in position. An adjusting head is fixedly arranged on the outer side of the adjusting gear; the device is compact in overall structure, detachable design is adopted, a user can quickly disassemble and assemble the device as needed, and use convenience is improved.
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Description

Technical Field

[0001] The invention belongs to the technical field of thermal insulation equipment for electric power facilities, and in particular relates to a detachable and portable thermal insulation and heating device. Background Art

[0002] Tank circuit breakers are an important equipment in power grid construction. Whether the tank circuit breaker operates well directly affects the reliability of power supply. Among them, SF6 circuit breakers are commonly known as sulfur hexafluoride circuit breakers. SF6 circuit breakers are a new type of high-voltage circuit breaker that uses SF6 (sulfur hexafluoride) gas as an insulating and arc-extinguishing medium. However, the ambient temperature has a great influence on the state of SF6 gas. The decrease in ambient temperature will reduce the density of SF6 gas or even liquefy it. During the opening process of the circuit breaker, the arc-extinguishing ability will be weakened or even lost, which will directly cause the circuit breaker to be unable to operate.

[0003] In the past, the SF6 circuit breaker equipment in substations used traditional heating cables. When encountering low temperature and cold wave weather, once the heating cables fail, the power must be shut down for processing, and the maintenance cycle is long. Moreover, when using the heating cables, they are usually fixedly connected to the circuit breaker housing through connecting glue, and the surface is covered with an insulation layer. Once the heating cables fail, the insulation layer and connecting glue need to be removed, the heating cables need to be taken out and replaced, and then the new heating cables need to be re-fixed to the circuit breaker housing, which is time-consuming and inefficient, and the line operation is seriously affected. Summary of the invention

[0004] The purpose of the present invention is to overcome the deficiencies of the prior art and to solve the problems raised in the above technical background.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a detachable portable heat-insulating and heating device, which comprises a clamping body, the clamping body comprises a symmetrically arranged half-clamping seat, a heat-insulating tube is arranged in the middle of the half-clamping seat, an empty groove is arranged inside the heat-insulating tube, a heating belt is arranged inside the empty groove, positioning rings are arranged at both the front and rear ends of the half-clamping seat, an adjusting gear is arranged inside the positioning ring at the front end, an outer positioning arc piece is meshed with the upper side of the adjusting gear, an inner positioning arc piece is meshed with the lower side of the adjusting gear, a positioning hole is arranged inside the positioning ring at the rear end, the positioning hole corresponds to the position of the outer positioning arc piece and the inner positioning arc piece, and an adjusting head is fixedly arranged on the outer side of the adjusting gear.

[0006] The lower part of the heat preservation tube is hinged with the half clamp seat through a hinge, and the upper part of the heat preservation tube is provided with a screw seat.

[0007] A vacuum chamber is arranged outside the empty slot, and a heat conducting layer is arranged inside the empty slot.

[0008] A slide groove is arranged inside the positioning ring, and the outer positioning arc piece and the inner positioning arc piece cooperate with the slide groove.

[0009] A quick-connect mechanism is arranged inside the empty slot, and the quick-connect mechanism comprises a placement box, a quick-connect plug is arranged at the left end of the placement box, a clamping plate is arranged at the right end of the placement box, and the heating belt is arranged inside the placement box.

[0010] A power connector is arranged on the outside of the heat preservation cylinder, and the power connector is connected to the quick-connect plug through a line.

[0011] The adjusting gear is connected to the positioning ring through a connecting bearing, and a limiting mechanism is arranged at the lower side of the adjusting head, and the limiting mechanism includes a support rod and a sliding sleeve, the support rod is fixedly connected to the adjusting gear, a card is arranged on the outer side of the support rod, a sliding sleeve is sleeved on the upper side of the support rod, and the sliding sleeve is clamped with the card through a clamping groove, a limiting plate is arranged on the outer side of the sliding sleeve, and a limiting groove is arranged inside the positioning ring, the limiting groove and the limiting plate are clamped with each other, and the sliding sleeve is fixedly connected to the adjusting head.

[0012] A return spring is arranged between the support rod and the sliding sleeve.

[0013] The present invention provides a detachable portable heat preservation and heating device, which has the following beneficial effects: the main component of the device is a clamping body, which is composed of two symmetrically arranged half-clamping seats, and a heat preservation tube is arranged in the middle of the half-clamping seat, and an empty groove is arranged inside the heat preservation tube for placing the heating belt, so as to achieve good heating and heat preservation functions. Positioning rings are arranged at the front and rear ends of the half-clamping seat, and the outer positioning arc piece and the inner positioning arc piece correspond to the positioning holes respectively. By adjusting the gear, the clamping body positions and clamps the tank transformer through the positioning ring. The design of the quick-connect mechanism makes the installation and disassembly process of the heating belt extremely convenient. Through the connection between the quick-connect plug and the power connector, the disassembly and installation of the heating belt can be completed in a short time without complicated operating steps. The limit mechanism can limit the rotation of the adjustment head to prevent the accidental rotation of the adjustment head from affecting the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 The present invention is a diagram showing the overall structure of a detachable portable heat preservation and heating device.

[0015] Figure 2 The present invention is a side view of the interior of a positioning ring of a detachable portable heat-insulating heating device.

[0016] Figure 3 The present invention is a structural diagram of a positioning ring clamping state of a detachable portable heat-insulating heating device.

[0017] Figure 4 The present invention is a front view of a positioning ring of a detachable portable heat-insulating heating device.

[0018] Figure 5 The present invention is a diagram showing the internal structure of a semi-clamping base of a detachable portable heat preservation and heating device.

[0019] Figure 6 The present invention is a cross-sectional view of a half-clamping seat of a detachable portable heat-insulating and heating device.

[0020] Figure 7 This is a structural diagram of the connection between the regulating head and the regulating gear of a detachable portable heat-insulating heating device of the present invention.

[0021] Figure 8 The present invention is a structural diagram of a connection between a sleeve and a support rod of a detachable portable heat-insulating and heating device.

[0022] Fig. 9 The present invention is a bottom view of a support rod of a detachable portable heat preservation and heating device.

[0023] In the figure: 1, clamping body 2, half clamping seat 3, positioning ring 4, insulation cylinder 5, hinge 6, screw seat 7, empty slot 8, heating belt 9, adjusting gear 10, outer positioning arc piece 11, inner positioning arc piece 12, adjusting head 13, positioning hole 14, vacuum chamber 15, heat conductive layer 16, placement box 17, quick-connect plug 18, splint 19, power connector 20, slide 21, connecting bearing 22, support rod 23, card 24, sliding sleeve 25, card slot 26, return spring 27, limit plate 28, limit slot. DETAILED DESCRIPTION

[0024] The following embodiments of the present invention are described in further detail in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention. Example 1

[0025] See also Figures 1 to 5 A detachable portable heat preservation and heating device comprises a clamping body 1, wherein the clamping body 1 comprises a symmetrically arranged half-clamping seat 2, a heat preservation tube 4 is arranged in the middle of the half-clamping seat 2, an empty groove 7 is arranged inside the heat preservation tube 4, a heat preservation belt 8 is arranged inside the empty groove 7, positioning rings 3 are arranged at both the front and rear ends of the half-clamping seat 2, an adjusting gear 9 is arranged inside the positioning ring 3 at the front end, an outer positioning arc piece 10 is meshedly arranged on the upper side of the adjusting gear 9, an inner positioning arc piece 11 is meshedly arranged on the lower side of the adjusting gear 9, a positioning hole 13 is arranged inside the positioning ring 3 at the rear end, the positioning hole 13 corresponds to the outer positioning arc piece 10 and the inner positioning arc piece 11, and an adjusting head 12 is fixedly arranged on the outer side of the adjusting gear 9.

[0026] The lower part of the heat preservation tube 4 is hinged to the half clamping seat 2 through a hinge 5 , and the upper part of the heat preservation tube 4 is provided with a screw seat 6 .

[0027] A vacuum chamber 14 is disposed outside the hollow groove 7 , and a heat conducting layer 15 is disposed inside the hollow groove 7 .

[0028] A slide groove 20 is provided inside the positioning ring 3 , and the outer positioning arc piece 10 and the inner positioning arc piece 11 cooperate with the slide groove 20 .

[0029] When the device is in use, the clamping body 1 is composed of two symmetrical half-clamping seats 2. The half-clamping seats 2 are buckled onto the outside of the tank transformer that needs to be insulated. The adjusting head 12 is rotated to drive the outer positioning arc piece 10 and the inner positioning arc piece 11 to move inside the positioning ring 3 through the adjusting gear 9. The outer positioning arc piece 10 and the inner positioning arc piece 11 are adjusted to the appropriate position so that they are plugged into the positioning hole 13 to achieve a more secure clamping effect. The insulation tube 4 is opened around the hinge 5 through the screw seat 6. The empty groove 7 in the insulation tube 4 is provided with a heating belt 8, which can directly heat the part that needs to be insulated, reducing heat loss. The insulation tube 4 is made of high-efficiency insulation material, which can effectively reduce heat loss and improve the insulation effect. The overall structure of the device is compact and adopts a detachable design, which is convenient for users to quickly disassemble and assemble when needed, improving the convenience of use. It is suitable for a variety of environments and work occasions and has strong versatility. Example 2

[0030] See also Figures 1 to 6 A detachable portable heat preservation and heating device comprises a clamping body 1, wherein the clamping body 1 comprises a symmetrically arranged half-clamping seat 2, a heat preservation tube 4 is arranged in the middle of the half-clamping seat 2, an empty groove 7 is arranged inside the heat preservation tube 4, a heat preservation belt 8 is arranged inside the empty groove 7, positioning rings 3 are arranged at both the front and rear ends of the half-clamping seat 2, an adjusting gear 9 is arranged inside the positioning ring 3 at the front end, an outer positioning arc piece 10 is meshedly arranged on the upper side of the adjusting gear 9, an inner positioning arc piece 11 is meshedly arranged on the lower side of the adjusting gear 9, a positioning hole 13 is arranged inside the positioning ring 3 at the rear end, the positioning hole 13 corresponds to the outer positioning arc piece 10 and the inner positioning arc piece 11, and an adjusting head 12 is fixedly arranged on the outer side of the adjusting gear 9.

[0031] Furthermore, the lower part of the heat preservation tube 4 is hinged to the half clamp seat 2 through a hinge 5, and a screw seat 6 is provided on the upper part of the heat preservation tube 4. The lower part of the heat preservation tube 4 can be turned over through the hinge 5, so that the heat preservation tube 4 can be unfolded and the internal heating belt 8 can be installed and replaced. A fixing bolt is provided inside the screw seat 6 to fix the upper part of the heat preservation tube 4 to the half clamp seat 2.

[0032] Furthermore, a vacuum chamber 14 is provided outside the empty slot 7, and a heat-conducting layer 15 is provided inside the empty slot 7. The vacuum chamber 14 can isolate the empty slot 7 from the external environment, and has a good heat preservation effect, and the heat-conducting layer 15 can effectively transfer heat.

[0033] Furthermore, a slide groove 20 is provided inside the positioning ring 3, and the outer positioning arc piece 10 and the inner positioning arc piece 11 cooperate with the slide groove 20. The outer positioning arc piece 10 and the inner positioning arc piece 11 move along the slide groove 20 to avoid deviation.

[0034] Furthermore, a quick-connect mechanism is provided inside the empty slot 7, and the quick-connect mechanism includes a placement box 16, a quick-connect plug 17 is provided at the left end of the placement box 16, a clamping plate 18 is provided at the right end of the placement box 16, and the heating belt 8 is arranged inside the placement box 16. The quick-connect plug 17 facilitates quick connection with the heating belt 8, and the clamping plate 18 can clamp and fix the heating belt 8.

[0035] Furthermore, a power connector 19 is provided on the outside of the heat preservation tube 4, and the power connector 19 is connected to the quick-connect plug 17 through a line.

[0036] When the device is in use, the clamping body 1 is composed of two symmetrical half-clamping seats 2. The half-clamping seats 2 are buckled onto the outside of the tank transformer that needs to be insulated. The adjusting head 12 is rotated to drive the outer positioning arc piece 10 and the inner positioning arc piece 11 to move inside the positioning ring 3 through the adjusting gear 9. The outer positioning arc piece 10 and the inner positioning arc piece 11 are adjusted to the appropriate position so that they are plugged into the positioning hole 13 to achieve a more secure clamping effect. The insulation tube 4 is opened around the hinge 5 through the screw seat 6. The empty slot 7 in the insulation tube 4 is provided with a heating belt 8, which can directly heat the part that needs to be insulated, reducing heat loss. The insulation tube 4 is made of high-efficiency insulation material, which can effectively reduce heat loss and improve the insulation effect. Furthermore, a quick-connect mechanism is provided inside the empty slot 7. When the heating belt 8 is damaged or needs to be replaced, the quick-connect mechanism makes this process simple and quick. Just disconnect the quick-connect plug 17, take out the damaged heating cable 8, put the new heating cable 8 into the placement box 16, and reconnect the quick-connect plug 17. This design greatly reduces maintenance time and cost. The overall structure of the device is compact and adopts a detachable design, which is convenient for users to quickly disassemble and assemble when needed, improves the convenience of use, is suitable for a variety of environments and work occasions, and has strong versatility. Example 3

[0037] See also Figures 1 to 9A detachable portable heat preservation and heating device comprises a clamping body 1, wherein the clamping body 1 comprises a symmetrically arranged half-clamping seat 2, a heat preservation tube 4 is arranged in the middle of the half-clamping seat 2, an empty groove 7 is arranged inside the heat preservation tube 4, a heat preservation belt 8 is arranged inside the empty groove 7, positioning rings 3 are arranged at both the front and rear ends of the half-clamping seat 2, an adjusting gear 9 is arranged inside the positioning ring 3 at the front end, an outer positioning arc piece 10 is meshedly arranged on the upper side of the adjusting gear 9, an inner positioning arc piece 11 is meshedly arranged on the lower side of the adjusting gear 9, a positioning hole 13 is arranged inside the positioning ring 3 at the rear end, the positioning hole 13 corresponds to the outer positioning arc piece 10 and the inner positioning arc piece 11, and an adjusting head 12 is fixedly arranged on the outer side of the adjusting gear 9.

[0038] Furthermore, the lower part of the heat preservation tube 4 is hinged to the half clamp seat 2 through a hinge 5, and a screw seat 6 is provided on the upper part of the heat preservation tube 4. The lower part of the heat preservation tube 4 can be turned over through the hinge 5, so that the heat preservation tube 4 can be unfolded and the internal heating belt 8 can be installed and replaced. A fixing bolt is provided inside the screw seat 6 to fix the upper part of the heat preservation tube 4 to the half clamp seat 2.

[0039] Furthermore, a vacuum chamber 14 is provided outside the empty slot 7, and a heat-conducting layer 15 is provided inside the empty slot 7. The vacuum chamber 14 can isolate the empty slot 7 from the external environment, and has a good heat preservation effect, and the heat-conducting layer 15 can effectively transfer heat.

[0040] Furthermore, a slide groove 20 is provided inside the positioning ring 3, and the outer positioning arc piece 10 and the inner positioning arc piece 11 cooperate with the slide groove 20. The outer positioning arc piece 10 and the inner positioning arc piece 11 move along the slide groove 20 to avoid deviation.

[0041] Furthermore, a quick-connect mechanism is provided inside the empty slot 7, and the quick-connect mechanism includes a placement box 16, a quick-connect plug 17 is provided at the left end of the placement box 16, a clamping plate 18 is provided at the right end of the placement box 16, and the heating belt 8 is arranged inside the placement box 16. The quick-connect plug 17 facilitates quick connection with the heating belt 8, and the clamping plate 18 can clamp and fix the heating belt 8.

[0042] Furthermore, a power connector 19 is provided on the outside of the heat preservation tube 4, and the power connector 19 is connected to the quick-connect plug 17 through a line.

[0043] Furthermore, the adjusting gear 9 is connected to the positioning ring 3 through a connecting bearing 21, and a limiting mechanism is arranged on the lower side of the adjusting head 12, and the limiting mechanism includes a support rod 22 and a sliding sleeve 24, the support rod 22 is fixedly connected to the adjusting gear 9, a card 23 is arranged on the outer side of the support rod 22, a sliding sleeve 24 is sleeved on the upper side of the support rod 22, the sliding sleeve 24 is clamped with the card 23 through a clamping groove 25, a limiting plate 27 is arranged on the outer side of the sliding sleeve 24, a limiting groove 28 is arranged inside the positioning ring 3, the limiting groove 28 and the limiting plate 27 are clamped with each other, and the sliding sleeve 24 is fixedly connected to the adjusting head 12.

[0044] Furthermore, a return spring 26 is provided between the support rod 22 and the sliding sleeve 24. The return spring 26 pushes the sliding sleeve 24 to move upward, so that the limiting plate 27 and the limiting groove 28 are mutually engaged.

[0045] When the device is in use, the clamping body 1 is composed of two symmetrical half-clamping seats 2. The half-clamping seats 2 are buckled onto the outside of the tank transformer that needs to be insulated. The adjusting head 12 is rotated to drive the outer positioning arc piece 10 and the inner positioning arc piece 11 to move inside the positioning ring 3 through the adjusting gear 9. The outer positioning arc piece 10 and the inner positioning arc piece 11 are adjusted to the appropriate position so that they are plugged into the positioning hole 13 to achieve a more secure clamping effect. The insulation tube 4 is opened around the hinge 5 through the screw seat 6. The empty groove 7 in the insulation tube 4 is provided with a heating belt 8, which can directly heat the part that needs to be insulated, reducing heat loss. The insulation tube 4 is made of high-efficiency insulation material, which can effectively reduce heat loss and improve the insulation effect. Furthermore, the limiting mechanism can control the rotation of the adjusting head 12. When the adjusting head 12 is in the initial state, the reset spring 26 pushes the sliding sleeve 24 upward, and the outer card 23 of the sliding sleeve 24 is engaged with the inner limiting groove 28 of the positioning ring 3. At this time, the sliding sleeve 24 cannot be driven to rotate by the adjusting head 12. When the adjusting gear 9 needs to be rotated by the adjusting head 12, the adjusting head 12 is pressed until the limiting plate 27 is disengaged from the limiting groove 28. At this time, the adjusting gear 9 can be driven to rotate by the adjusting head 12. The limiting mechanism is mainly used to limit the rotation of the adjusting head 12 and the adjusting gear 9 to prevent the adjusting head 12 and the adjusting gear 9 from rotating unexpectedly, driving the outer positioning arc piece 10 and the inner positioning arc piece 11 to shift, and loosening the positioning ring 3. The overall structure of the device is compact, and the detachable design is adopted, which is convenient for users to quickly disassemble and assemble when needed, improves the convenience of use, is suitable for a variety of environments and working occasions, and has strong versatility.

Claims

1. A detachable portable heat preservation and heating device, comprising a clamping body, characterized in that: The clamping body includes a symmetrically arranged half-clamping seat, a heat preservation tube is arranged in the middle of the half-clamping seat, an empty groove is arranged inside the heat preservation tube, a heating belt is arranged inside the empty groove, positioning rings are arranged at both the front and rear ends of the half-clamping seat, an adjusting gear is arranged inside the positioning ring at the front end, an outer positioning arc piece is meshed with the upper side of the adjusting gear, an inner positioning arc piece is meshed with the lower side of the adjusting gear, a positioning hole is arranged inside the positioning ring at the rear end, the positioning hole corresponds to the position of the outer positioning arc piece and the inner positioning arc piece, and an adjusting head is fixedly arranged on the outer side of the adjusting gear.

2. A detachable portable heat preservation and heating device according to claim 1, characterized in that: The lower part of the heat preservation tube is hinged with the half clamp seat through a hinge, and the upper part of the heat preservation tube is provided with a screw seat.

3. A detachable portable heat preservation and heating device according to claim 1, characterized in that: A vacuum chamber is arranged outside the empty slot, and a heat conducting layer is arranged inside the empty slot.

4. A detachable portable heat preservation and heating device according to claim 1, characterized in that: A slide groove is arranged inside the positioning ring, and the outer positioning arc piece and the inner positioning arc piece cooperate with the slide groove.

5. A detachable portable heat preservation and heating device according to claim 1, characterized in that: A quick-connect mechanism is arranged inside the empty slot, and the quick-connect mechanism comprises a placement box, a quick-connect plug is arranged at the left end of the placement box, a clamping plate is arranged at the right end of the placement box, and the heating belt is arranged inside the placement box.

6. A detachable portable heat preservation and heating device as claimed in claim 5, characterized in that: A power connector is arranged on the outside of the heat preservation cylinder, and the power connector is connected to the quick-connect plug through a line.

7. A detachable portable heat preservation and heating device according to claim 1, characterized in that: The adjusting gear is connected to the positioning ring through a connecting bearing, and a limiting mechanism is arranged at the lower side of the adjusting head, and the limiting mechanism includes a support rod and a sliding sleeve, the support rod is fixedly connected to the adjusting gear, a card is arranged on the outer side of the support rod, a sliding sleeve is sleeved on the upper side of the support rod, and the sliding sleeve is clamped with the card through a clamping groove, a limiting plate is arranged on the outer side of the sliding sleeve, and a limiting groove is arranged inside the positioning ring, the limiting groove and the limiting plate are clamped with each other, and the sliding sleeve is fixedly connected to the adjusting head.

8. A detachable portable heat preservation and heating device as claimed in claim 7, characterized in that: A return spring is arranged between the support rod and the sliding sleeve.