Heat accumulating type CPVC cable sleeve

Abstract

The utility model discloses a heat accumulating type CPVC (chlorinated polyvinyl chloride) cable sleeve. The cable sleeve comprises at least one group of segmented units, each segmented unit comprises a pipe body, a first plugging piece and a second plugging piece; the pipe body is provided with a head end, a tail end, a cable penetrating channel and an energy storage channel, the plurality of energy storage channels are arranged at intervals around the periphery of the cable insertion channel; a heat storage medium capable of absorbing and releasing heat is arranged in the energy storage channel; the first blocking piece is arranged corresponding to the energy storage channel and blocks the head end of the energy storage channel. And the second plugging piece is arranged corresponding to the energy storage channel and is plugged at the tail end of the energy storage channel. The cable sleeve can absorb heat in a heat storage mode and release the heat in a peak shifting mode in a heat exchange mode, so that the heat is effectively prevented from being concentrated in the cable sleeve, and the cable sleeve is high in practicability.

Description

Technical Field

[0001] The utility model relates to the technical field of CPVC cable casings, in particular to a heat storage type CPVC cable casing. Background Art

[0002] With the rapid development of power systems, heat management of cables during use has become increasingly important. Conventional CPVC (chlorinated polyvinyl chloride) cable sheaths dissipate heat from the cables placed in the cable sheaths through heat dissipation holes, heat dissipation channels and other structures by exchanging heat with the external environment. When the cable is working under high load and the heat is concentrated, it is difficult to completely dissipate the heat to the outside air in a short time through the above-mentioned heat exchange with the outside world. The concentration of heat can easily cause the cable to overheat, affecting its performance and life, and may even cause safety accidents. Utility Model Content

[0003] In view of the above-mentioned technical problems, the purpose of the utility model is to propose a heat storage CPVC cable sheath, which can absorb heat by heat storage and release the heat in a staggered manner by heat exchange, so as to effectively avoid heat concentration in the cable sheath, and has strong practicality.

[0004] The technical solution of the utility model is achieved as follows: a heat storage CPVC cable casing, the cable casing comprises at least one group of segment units; the segment units comprise a pipe body, a first plugging piece, and a second plugging piece;

[0005] The tube body has two ends, and a cable insertion channel and an energy storage channel extending in the direction of the two ends; a plurality of energy storage channels are arranged around the outer periphery of the cable insertion channel at intervals; a heat storage medium capable of absorbing and releasing heat is arranged in the energy storage channel;

[0006] The first blocking member is arranged corresponding to the energy storage channel and blocks the first end of the energy storage channel;

[0007] The second blocking member is arranged corresponding to the energy storage channel and blocks the rear end of the energy storage channel.

[0008] Furthermore, a plurality of the energy storage channels are arranged at intervals on the side wall of the tube body; the energy storage channel has an extended inner wall and an extended outer wall arranged on the inner and outer sides of the side wall of the tube body; the extended inner walls of the plurality of the energy storage channels cooperate with each other to enclose and form the cable insertion channel.

[0009] Furthermore, a plurality of heat dissipation disks are arranged at intervals along the head and tail ends on the outer peripheral surface of the tube body; the heat dissipation disks are connected to the extended outer walls of each of the energy storage channels.

[0010] Furthermore, the heat dissipation plate body has an outer circumferential surface formed around the central axis of the tube body.

[0011] Furthermore, the heat storage medium is paraffin or metal particles mixed with paraffin.

[0012] Furthermore, a positioning pin is provided on the first blocking member; the positioning pin extends along the head and tail directions of the tube body and is exposed on the tube body; the second blocking member is accommodated inside the tube body, and a positioning hole is provided on the second blocking member; at least two groups of the segment units are arranged along the head and tail directions of the tube body, and have a docking state in which the head and tail are docked with each other; in the docking state, in two adjacent segment units, the positioning pins and the positioning holes at corresponding positions are plugged into and matched with each other along the head and tail directions of the tube body.

[0013] Furthermore, the first blocking member and the second blocking member are threadedly connected to the open end of the energy storage channel; the positioning pin is coaxially arranged with the first blocking member; and the positioning hole is coaxially arranged with the second blocking member.

[0014] Furthermore, the pipe body is integrally formed from CPVC material by injection molding.

[0015] Due to the application of the above technical solution, the utility model has the following advantages compared with the prior art:

[0016] 1. The utility model arranges a plurality of energy storage channels around the cable insertion channel, and fills the energy storage channels with heat storage medium. Part of the heat in the cable sheath can be absorbed and stored by the heat storage medium to avoid the rapid increase in temperature caused by the heat concentrated in the cable sheath and released. Moreover, this part of the heat can be dissipated to the external environment by heat exchange when the cable is in a low load or idle state, thereby achieving staggered heat dissipation to effectively avoid the heat from being concentrated in the cable sheath, and has strong practicality.

[0017] 2. The utility model can block the energy storage channel by using the first blocking member and the second blocking member in coordination, so as to seal the heat storage medium in the energy storage channel. At the same time, by using the positioning pins and the positioning holes in coordination with each other, several segmented units can be docked and positioned with each other to form a cable sheath of the required length, which effectively meets the use requirements of the cable sheath and has strong practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The technical solution of the utility model is further described below in conjunction with the accompanying drawings:

[0019] Figure 1 It is a three-dimensional structural schematic diagram of the segment unit of the utility model;

[0020] Figure 2 for Figure 1 A cross-sectional structural diagram of ;

[0021] Figure 3 for Figure 1 Exploded view of;

[0022] Figure 4 It is a schematic diagram of the cross-sectional structure of the tube body of the utility model;

[0023] Figure 5 It is a schematic diagram of the three-dimensional structure of the segmented units of the utility model when they are connected to each other;

[0024] Figure 6 It is a schematic diagram of the three-dimensional structure of the second blocking member of the utility model;

[0025] Figure 7 It is a schematic diagram of the three-dimensional structure of the first blocking member of the utility model;

[0026] Among them: 1. tube body; 11. cable insertion channel; 12. energy storage channel; 13. extended inner wall; 14. extended outer wall; 15. heat dissipation plate; 2. first blocking piece; 21. positioning pin; 3. second blocking piece; 31. positioning hole. DETAILED DESCRIPTION

[0027] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the protection scope of the present invention.

[0028] like Figure 1-7The figure shows a heat storage CPVC cable sheath described in this embodiment, in which the cable is inserted to protect the cable. The cable sheath includes several groups of segmented units. Among them, the segmented unit includes a pipe body 1, a first plugging piece 2, a second plugging piece 3 and other components. The above-mentioned pipe body 1 is formed in one piece by injection molding of CPVC material. The pipe body 1 has two ends, and a cable insertion channel 11 and an energy storage channel 12 extending along the directions of the two ends. Among them, a plurality of energy storage channels 12 are arranged at intervals around the outer periphery of the cable insertion channel 11 along the circumferential direction of the pipe body 1. In this embodiment, the number of energy storage channels 12 is arranged in four groups. Specifically, four groups of energy storage channels 12 are formed on the side wall of the pipe body 1 at intervals along the circumferential direction of the pipe body 1. The energy storage channel 12 is a circular pipe, which is formed by an annular pipe wall. Among them, the annular pipe wall has an extended inner wall 13 and an extended outer wall 14 arranged on the inner and outer sides of the side wall of the pipe body 1. The extended inner walls 13 of the four energy storage channels 12 cooperate with each other to enclose the aforementioned cable insertion channel 11. The cable is inserted into the cable insertion channel 11 and can contact each extended inner wall 13. The heat generated by the cable during operation is dissipated to the outside of the tube body 1 through the inner circumference of the cable insertion channel 11. The extended inner wall 13 can increase the area of ​​the inner circumference of the cable insertion channel 11 to improve the heat dissipation capacity of the tube body 1.

[0029] A heat storage medium that can absorb and release heat is added to the energy storage channel 12. The heat storage medium can absorb and release heat. The heat storage material is preferably paraffin. Paraffin is initially solid, and after absorbing a certain amount of heat and heating up, it can undergo a phase change and become liquid. The melting point of the paraffin in this embodiment is selected to be around 60°C. In addition, the heat storage medium can also be selected to be metal particles mixed with paraffin to improve the heat absorption effect of the heat storage medium. Through the above-mentioned structural design, the heat generated by the cable is transferred to the heat storage medium via the extended inner wall 13, and the heat storage material absorbs the heat to accumulate and store the heat.

[0030] During the specific assembly, paraffin or metal particles of mixed paraffin are added into each energy storage channel 12 in a solid form, and then the energy storage channel 12 is closed by the first blocking member 2 and the second blocking member 3 .

[0031] In this embodiment, a plurality of heat dissipation disks 15 are arranged at intervals along the direction of the head and tail ends on the outer circumferential surface of the tube body 1. Each heat dissipation disk 15 is connected to the extended outer wall 14 of each energy storage channel 12, and the heat dissipation disk can increase the heat dissipation area of ​​the tube body 1, thereby improving the heat exchange capacity between the tube body 1 and the external environment. The aforementioned heat dissipation disk 15 has an outer circumferential surface formed around the central axis of the tube body 1, so that the tube body 1 and the heat dissipation disk 15 are integrally constructed into a cylindrical structure to improve the pressure bearing capacity of the overall structure.

[0032] The first blocking member 2 and the second blocking member 3 are both made of CPVC material. A first blocking member 2 is arranged corresponding to each energy storage channel 12, and the first blocking member 2 is installed at the head end of the energy storage channel 12 by threaded connection to block the head end of the energy storage channel 12. A second blocking member 3 is arranged corresponding to each energy storage channel 12, and the second blocking member 3 is installed at the tail end of the energy storage channel 12 by threaded connection to block the tail end of the energy storage channel 12. Through the mutual cooperation of the first blocking member 2 and the second blocking member 3, the energy storage medium can be sealed in the energy storage channel 12.

[0033] The first blocking member 2 and the second blocking member 3 are both made of CPVC material.

[0034] In this embodiment, the first blocking member 2 is accommodated in the interior of the energy storage channel 12, and a positioning pin 21 is processed on the side of the first blocking member 2 facing the outside of the tube body 1. The positioning pin 21 extends along the head and tail ends of the tube body 1 and is exposed to the outside of the tube body 1. The positioning pin 21, the first blocking member 2, and the energy storage channel 12 at the corresponding position are located on the same central axis. The second blocking member 3 is accommodated in the interior of the energy storage channel 12, and a positioning hole 31 is processed on the side of the second blocking member 3 facing the outside of the tube body 1. The positioning hole 31 is a countersunk structure. The positioning hole 31, the second blocking member 3, and the energy storage channel 12 at the corresponding position are located on the same central axis.

[0035] The above-mentioned several segment units are arranged along the head and tail directions of the tube body 1, and have a docking state in which the head and tail are docked with each other. In the above-mentioned docking state, the positioning pins 21 and the positioning holes 31 at corresponding positions in two adjacent segment units are plugged and matched with each other along the head and tail directions of the tube body 1. Through the above-mentioned structural design, several segment units can be docked and positioned with each other to form a cable sleeve of a required length, effectively meeting the use requirements of the cable sleeve.

[0036] It should be noted that the cable sleeve is particularly suitable for protecting cables extending in a horizontal direction, such as cables buried underground.

[0037] When in use, several segmented units are connected end to end through the positioning pins 21 and the positioning holes 31 to form a suitable length, and the cable is inserted into the cable insertion channel 11. When the cable is working, part of the heat in the cable sheath is dissipated to the external environment through the tube body 1, and part of the heat is absorbed and stored by the heat storage medium after heat conduction, thereby avoiding the rapid increase in temperature caused by the heat concentration in the cable sheath. Moreover, this part of the heat can be dissipated to the external environment through heat exchange when the cable is under low load or idle state, thereby achieving staggered heat dissipation, effectively avoiding the heat concentration in the cable sheath, and having strong practicality.

[0038] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A thermal storage CPVC cable casing, the cable casing comprising at least one group of segmented units; characterized in that: The segment unit includes a tube body, a first blocking piece, and a second blocking piece; The tube body has two ends, and a cable insertion channel and an energy storage channel extending in the direction of the two ends; a plurality of energy storage channels are arranged at intervals around the outer periphery of the cable insertion channel; The energy storage channel is provided with a heat storage medium capable of absorbing and releasing heat; The first blocking member is arranged corresponding to the energy storage channel and blocks the first end of the energy storage channel; The second blocking member is arranged corresponding to the energy storage channel and blocks the rear end of the energy storage channel.

2. The thermal storage CPVC cable casing according to claim 1, characterized in that: A plurality of the energy storage channels are arranged at intervals on the side wall of the tube body; the energy storage channel has an extended inner wall and an extended outer wall arranged on the inner and outer sides of the side wall of the tube body; the extended inner walls of the plurality of the energy storage channels cooperate with each other to enclose and form the cable insertion channel.

3. The thermal storage CPVC cable casing according to claim 2, characterized in that: A plurality of heat dissipation disks are arranged at intervals along the direction of the head and tail ends on the outer peripheral surface of the tube body; the heat dissipation disks are connected to the extended outer walls of each of the energy storage channels.

4. The thermal storage CPVC cable casing according to claim 3, characterized in that: The heat dissipation plate body has an outer circumferential surface formed around the central axis of the tube body.

5. The thermal storage CPVC cable bushing according to claim 1, characterized in that: The heat storage medium is paraffin or metal particles mixed with paraffin.

6. The thermal storage CPVC cable bushing according to claim 1, characterized in that: The first blocking member is provided with a positioning pin; the positioning pin extends along the head and tail directions of the tube body and is exposed from the tube body; the second blocking member is accommodated inside the tube body, and a positioning hole is provided on the second blocking member; at least two groups of the segment units are arranged along the head and tail directions of the tube body, and have a docking state in which the head and tail are docked with each other; in the docking state, in two adjacent segment units, the positioning pins and the positioning holes at corresponding positions are plugged into and matched with each other along the head and tail directions of the tube body.

7. The thermal storage CPVC cable bushing according to claim 6, characterized in that: The first blocking member and the second blocking member are threadedly connected to the open end of the energy storage channel; the positioning pin is coaxially arranged with the first blocking member; and the positioning hole is coaxially arranged with the second blocking member.

8. The thermal storage CPVC cable bushing according to claim 1, characterized in that: The pipe body is integrally formed from CPVC material by injection molding.

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