CN216697895U

CN216697895U - Special-purpose extremely-cold-resistant low-temperature cable

Info

Publication number: CN216697895U
Application number: CN202123227390.0U
Authority: CN
Inventors: 陈东; 孙永凯; 魏光超
Original assignee: Shandong Luqing Cable Co ltd
Current assignee: Shandong Luqing Cable Co ltd
Priority date: 2021-12-21
Filing date: 2021-12-21
Publication date: 2022-06-07
Anticipated expiration: 2031-12-21

Abstract

The utility model discloses a special-purpose extremely cold-resistant low-temperature cable, which relates to the technical field of cables and comprises a cable body, wherein a cable core is arranged inside the cable body, an insulating rubber tube is wrapped outside the cable core, a heat conduction tube is arranged inside the insulating rubber tube along the length direction of the cable core, an electric heating wire is arranged inside the heat conduction tube, an insulating layer is coated on the inner wall of the heat conduction tube, heat preservation fillers are filled outside the cable core and the heat conduction tube inside the insulating rubber tube, the heat conduction tube is heated by the electric heating wire, and simultaneously heat can be rapidly transferred to the periphery of the cable core under the action of a heat conduction sheet, so that the cable core is heated, the cable core can still stably work in an extremely cold low-temperature environment, moisture in the heat preservation tube can be absorbed by a moisture absorption layer, and the absorbed moisture can be prevented from being diffused into the heat preservation tube again by a film and through holes on the film, thereby improving the dehumidification efficiency of the heat preservation pipe.

Description

Special-purpose extremely-cold-resistant low-temperature cable

Technical Field

The utility model relates to the technical field of cables, in particular to an extremely cold-resistant low-temperature cable with special application.

Background

A cable is a power or signal transmission device, and is generally composed of several wires or groups of wires.

Cable in the existing market is difficult to use in extremely cold low temperature environment, and simultaneously, when moisture appears in the inside heat preservation of cable, moisture is difficult to in time separate with the heat preservation, and then leads to insulating tube or heat preservation to corrode with higher speed, and in addition, each layer of cable easily receives external influence, appears the built on stilts phenomenon of layering, influences the normal use of cable.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an extremely cold-resistant low-temperature cable with special application, which solves the problems in the background technology.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a special use is able to bear or endure extremely cold cryogenic cable, includes the cable body, the inside of the cable body is provided with the cable core, the outside parcel of cable core has insulating rubber tube, insulating rubber tube's inside is prolonged and is provided with the heat pipe on the length direction of cable core, the inside of heat pipe is provided with the heating wire, and the inner wall coating of heat pipe has the insulating layer, the inside of insulating rubber tube is located the outside packing that cable core and heat pipe have the heat preservation filler.

Preferably, the heat conduction pipe is externally connected with a plurality of heat conduction sheets, and the heat conduction sheets are close to the edge of the cable core.

Preferably, the outer wall of the heat conducting fin is provided with a plurality of radiating grooves, and the cross sections of the radiating grooves are of concave structures.

Preferably, a heat preservation pipe is arranged between the cable body and the cable core.

Preferably, a moisture absorption layer is arranged inside the heat preservation pipe.

Preferably, the outer wall of the moisture absorption layer is sleeved with a film, and the outer wall of the film is provided with a plurality of through holes.

Preferably, be provided with the holding ring in the wall of insulating rubber tube, the external connection of holding ring has the connecting plate, the end of connecting plate extends to the inside of the cable body, and the both sides of connecting plate all are connected with the picture peg in the inside of the cable body and insulating tube.

Compared with the prior art, the utility model has the beneficial effects that:

1. according to the utility model, the heat conducting pipe is heated by the electric heating wire, and meanwhile, under the action of the heat conducting fins, heat can be rapidly transferred to the periphery of the cable core, so that the cable core is heated, and the cable core can still stably work in an extremely cold and low-temperature environment.

2. According to the utility model, the moisture absorption layer can be used for absorbing moisture in the heat preservation pipe, so that the heat preservation efficiency of the heat preservation pipe is improved, and the film and the through holes on the film can be used for preventing the absorbed moisture from being diffused into the heat preservation pipe again, so that the dehumidification efficiency of the heat preservation pipe is improved.

3. According to the utility model, under the action of the positioning ring in the insulating rubber tube, the connecting plate and the inserting plate on the positioning ring, all layers in the cable can form a whole, so that the phenomenon of deformation and aerial suspension of a certain layer in the cable is avoided, and the stability of the cable in use is improved.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the structure of a heat pipe in accordance with embodiment 1;

fig. 3 is a sectional view of a thermally conductive sheet of example 1.

FIG. 4 is a schematic view of the retaining ring according to embodiment 2.

FIG. 5 is a side view of the connecting plate of example 2.

In the figure: 1. a cable body; 2. inserting plates; 3. a heat preservation pipe; 4. a film; 5. a moisture-absorbing layer; 6. an insulating rubber tube; 7. a heat conducting pipe; 8. heat preservation filler; 9. a cable core; 10. a positioning ring; 11. a connecting plate; 12. a heat conductive sheet; 13. an electric heating wire; 14. an insulating layer; 15. a heat dissipation groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, such as "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example 1

As shown in fig. 1 to 3, the special-purpose cable for resisting extreme cold and low temperature of the embodiment includes a cable body 1, a cable core 9 is disposed inside the cable body 1, an insulating rubber tube 6 is wrapped outside the cable core 9, a heat conduction tube 7 is disposed inside the insulating rubber tube 6 along a length direction of the cable core 9, an electric heating wire 13 is disposed inside the heat conduction tube 7, an insulating layer 14 is coated on an inner wall of the heat conduction tube 7, and a thermal insulation filler 8 is filled inside the insulating rubber tube 6 and outside the cable core 9 and the heat conduction tube 7.

Specifically, the external connection of heat pipe 7 has a plurality of conducting strips 12, and conducting strip 12 is close to the edge of cable core 9, and conducting strip 12 can improve the temperature of cable core 9 around heat transfer to cable core 9 on the heat pipe 7 for cable core 9 still can normally use in microthermal environment.

Further, a plurality of radiating grooves 15 have been seted up to the outer wall of conducting strip 12, and the cross-section of radiating groove 15 is the character cut in bas-relief structure, utilizes the radiating groove 15 of character cut in bas-relief structure, and the heat radiating area of extensible radiating groove 15 to fully give off the heat of conducting strip 12 to in the heat preservation packs 8.

Further, be provided with insulating tube 3 between cable body 1 and the cable core 9, utilize insulating tube 3 can further keep warm to cable core 9, and then improve cable core 9 and stabilize work in extremely cold microthermal environment.

Further, the inside of insulating tube 3 is provided with moisture absorption layer 5, utilizes moisture absorption layer 5 can absorb moisture or steam in insulating tube 3, and then improves insulating tube 3's heat preservation efficiency.

Further, the outer wall cover of moisture absorption layer 5 is equipped with film 4, and a plurality of through-hole has been seted up to the outer wall of film 4, utilizes film 4 can carry out moisture absorption layer 5 wholly spacingly, only leaves through-hole and insulating tube 3 contact, and then avoids moisture absorption layer 5 to get back to insulating tube 3 again with absorbing moisture in to improve the stability when moisture absorption layer 5 absorbs moisture.

The using method of the embodiment comprises the following steps: when the cable is used, the electric heating wire 13 is electrified to heat the electric heating wire 13, and the insulating layer 14 can prevent current on the electric heating wire 13 from being transmitted to the heat conduction pipe 7, so that the safety of the device in use is improved;

the heat produced by the heating wire 13 is transferred to the periphery of the cable core 9 through the heat conducting sheet 12 by the heat conducting pipe 7, so that the cable core 9 is heated, and the cable core 9 can be stably used in an extremely cold and low-temperature environment.

Example 2

The structure of the present embodiment is substantially the same as that of embodiment 1, except that: a positioning ring 10 is arranged in the wall of the insulating rubber tube 6, a connecting plate 11 is connected outside the positioning ring 10, the tail end of the connecting plate 11 extends to the inside of the cable body 1, and inserting plates 2 are connected to the two sides of the connecting plate 11 in the cable body 1 and the insulating tube 3 (see fig. 4-5).

The using method of the embodiment comprises the following steps: because the positioning ring 10 is positioned in the insulating rubber tube 6, and under the action of the connecting plate 11 and the inserting plate 2, all layers in the cable can form a whole, thereby avoiding the phenomenon of deformation and aerial suspension of a certain layer in the cable and improving the stability of the cable in use.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the utility model. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a special use is able to bear or endure extremely cold cryogenic cable, includes cable body (1), the inside of cable body (1) is provided with cable core (9), its characterized in that: the outside parcel of cable core (9) has insulating rubber tube (6), be provided with heat pipe (7) on the length direction that cable core (9) was prolonged to the inside of insulating rubber tube (6), the inside of heat pipe (7) is provided with heating wire (13), and the inner wall coating of heat pipe (7) has insulating layer (14), the outside packing that the inside of insulating rubber tube (6) is located cable core (9) and heat pipe (7) has heat preservation filler (8).

2. The special-purpose extremely cold-resistant cryogenic cable of claim 1, wherein: the heat conduction pipe (7) is externally connected with a plurality of heat conduction sheets (12), and the heat conduction sheets (12) are close to the edge of the cable core (9).

3. A special purpose cable for extreme cold and cold temperatures according to claim 2, wherein: the outer wall of the heat conducting fin (12) is provided with a plurality of heat radiating grooves (15), and the cross sections of the heat radiating grooves (15) are of concave structures.

4. The special-purpose extremely cold-resistant cryogenic cable of claim 1, wherein: and a heat preservation pipe (3) is arranged between the cable body (1) and the cable core (9).

5. The special-purpose extremely cold-resistant cryogenic cable of claim 4, wherein: and a moisture absorption layer (5) is arranged in the heat preservation pipe (3).

6. The special-purpose extremely cold-resistant cryogenic cable of claim 5, wherein: the outer wall of the moisture absorption layer (5) is sleeved with a film (4), and the outer wall of the film (4) is provided with a plurality of through holes.

7. The special-purpose extremely cold-resistant cryogenic cable of claim 1, wherein: be provided with holding ring (10) in the wall of insulating rubber tube (6), the external connection of holding ring (10) has connecting plate (11), the end of connecting plate (11) extends to the inside of the cable body (1), and the both sides of connecting plate (11) all are connected with picture peg (2) in the inside of the cable body (1) and insulating tube (3).