Radiation-resistant light flexible fireproof cable

Abstract

The utility model relates to an anti-radiation light flexible fireproof cable, which comprises a cable core and an outer sleeve, and is characterized in that the cable core is sleeved with the outer sleeve; the cable core comprises a plurality of power lines, a plurality of control lines and an inner heat insulation layer, the outer sleeve comprises an outer heat insulation layer and a sheath, the sheath is sleeved with the outer heat insulation layer, and the sheath comprises a polyether-ether-ether sheath; the heat insulation performance and the fire resistance of the cable are enhanced by arranging the inner heat insulation layer and the outer heat insulation layer, meanwhile, the polyether-ether-tunnel sheath layer is resistant to radiation and high and low temperature in the environment, the polyether-ether-tunnel sheath layer wraps the outer heat insulation layer, the high-temperature and low-temperature resistant effect is further improved, and the limit environment temperature use requirements of special requirements of fire rescue and the like are met.

Description

Technical Field

[0001] The present application relates to the technical field of special equipment cables, and in particular to a radiation-resistant lightweight flexible fireproof cable. Background Art

[0002] At present, traditional fire-resistant cables in China are all fixedly laid, allowing a large bending radius, poor flexibility, and average radiation resistance and fire resistance. They cannot meet the extreme ambient temperature and mobile bending requirements of special requirements such as rocket launches and fire rescue. Utility Model Content

[0003] Based on this, it is necessary to provide a radiation-resistant lightweight flexible fire-proof cable, comprising a cable core and an outer sleeve, wherein the outer sleeve is sleeved on the outside of the cable core; the cable core comprises multiple power lines, multiple control lines and an inner insulation layer, the outer sleeve comprises an outer insulation layer and a sheath, the sheath is sleeved on the outer insulation layer, and the sheath comprises a polyetherether sheath.

[0004] The inner heat insulation layer fills the gaps between the plurality of power lines, the plurality of control lines and the outer sleeve.

[0005] The cable core includes at least three power lines and at least two control lines.

[0006] The power cord comprises a conductor, a polyetheretherketone insulation layer, a hollow quartz fiber braided layer, and a tinned copper braided shielding layer from the inside to the outside.

[0007] The control line comprises a plurality of conductor monofilaments, a polyetheretheretherketone insulation layer wrapping the plurality of conductor monofilaments, and an aramid line filled between the conductor monofilaments and the polyetheretherketone insulation layer.

[0008] The conductor monofilament comprises an aluminum core wire, a middle copper layer and a covering silver layer from the inside to the outside.

[0009] The outer heat insulation layer comprises, from the inside to the outside, a mica tape wrapping layer, a hollow quartz fiber braiding layer, and a mica tape wrapping layer.

[0010] The inner heat insulation layer is a fireproof clay filling layer, and the fireproof clay filling layer is filled between the outer sleeve, the power line, and the control line.

[0011] Compared with the prior art, the advantages of the utility model are:

[0012] The utility model provides a radiation-resistant lightweight flexible fireproof cable, which enhances the thermal insulation and fire resistance of the cable by arranging an inner insulation layer and an outer insulation layer. At the same time, the polyetherether sheath layer is radiation-resistant and resistant to high and low temperatures in the environment. The outer insulation layer is wrapped around it to further improve the high and low temperature resistance effect, and meet the extreme environmental temperature use requirements for special requirements such as fire fighting and rescue. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0014] Figure 1 This is a schematic diagram of the cross-sectional structure of a radiation-resistant lightweight flexible fire-resistant cable according to an embodiment of the present application;

[0015] Figure 2 for Figure 1 Schematic diagram of the enlarged structure at point A in the middle.

[0016] Description of reference numerals:

[0017] 1. Power cord; 101. Conductor; 102. Polyetheretheretherketone insulation layer; 103. Tinned copper braided shielding layer; 2. Control line; 201. Aluminum core wire; 202. Middle copper layer; 203. Silver coating layer; 3. Inner insulation layer; 4. Mica tape wrapping layer; 5. Hollow quartz fiber braiding layer; 6. Polyetheretherketone sheath. DETAILED DESCRIPTION

[0018] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0019] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0020] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0021] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0022] In the present application, unless otherwise clearly specified and limited, a first feature being “above” or “below” a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being “above”, “above”, and “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being “below”, “below”, and “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0023] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0024] A radiation-resistant lightweight flexible fireproof cable comprises a cable core and an outer sleeve, wherein the outer sleeve is sleeved on the outside of the cable core; the cable core comprises a plurality of power lines 1, a plurality of control lines 2 and an inner thermal insulation layer 3, wherein the inner thermal insulation layer 3 is filled in the gap between the power lines 1 and the control lines 2, the outer sleeve comprises an outer thermal insulation layer and a sheath, wherein the sheath is sleeved on the outer thermal insulation layer, and the sheath comprises a polyetherether sheath 6.

[0025] The radiation-resistant lightweight flexible fireproof cable enhances the thermal insulation and fire resistance of the cable by arranging an inner insulation layer 3 and an outer insulation layer. At the same time, the polyetheretherether sheath 6 is resistant to radiation and has strong resistance to high and low temperatures in the environment. It is wrapped in an outer insulation layer to further improve the high and low temperature resistance effect, and meet the extreme ambient temperature use requirements for special requirements such as fire fighting and rescue.

[0026] In the utility model, the inner heat insulation layer 3 fills the gaps between the multiple power lines 1, the multiple control lines 2 and the outer sleeve, has a large contact area with the power lines 1 and the control lines 2, and has better heat insulation performance.

[0027] In the utility model, the cable core includes at least three power lines 1 and at least two control lines 2, so as to ensure the performance of the cable. The user can adjust the number of the power lines 1 and the control lines 2 according to the usage.

[0028] In the utility model, the power cord 1 includes a conductor 1, a polyetheretherether insulation layer 102, a hollow quartz fiber braided layer 5, and a tinned copper braided shielding layer 103 from the inside to the outside; the control line 2 includes a plurality of conductor 1 monofilaments, a polyetheretherether insulation layer 102 wrapping the plurality of conductor 1 monofilaments, and an aramid wire filled between the conductor 1 monofilaments and the polyetheretherether insulation layer 102. High-strength aluminum alloy monofilaments are twisted and then extruded with polyetherether insulation, and hollow quartz fiber braided layers 5 and tinned copper braided shielding layers 103 with excellent heat insulation and fire resistance are woven respectively to form the power line 1, and the silver-plated copper-clad aluminum alloy and the aramid wire placed in the middle are twisted and then extruded with polyetherether insulation to form the control line 2, and then multiple power lines 1 and multiple control lines 2 are cabled and poured with magical fireproof mud as the inner insulation layer 3 to form a cable core. This cable core not only has excellent heat insulation and fire resistance, but also has strong tensile strength. The aramid reinforcement core in the control line 2 and the aluminum alloy conductor 1 of the power transmission wire have extremely strong tensile strength.

[0029] In the utility model, the conductor 1 monofilament includes an aluminum core wire 201, an intermediate copper layer 202, and a silver coating layer 203 from the inside to the outside. Six conductor 1 monofilaments and the aramid wire in the middle layer as a tensile rope are twisted to form the control line 2 conductor 1, and then a polyetheretherketone insulation layer 102 is extruded outside to form a control line 2 with extremely strong tensile strength.

[0030] In the utility model, the outer insulation layer includes a mica tape wrapping layer 4, a hollow quartz fiber braided layer 5, and a mica tape wrapping layer 4 from the inside to the outside, and the high temperature resistance and corrosion resistance of the mica tape and quartz fiber are utilized to make the high temperature resistance and corrosion resistance of the cable better.

[0031] In the utility model, the inner insulation layer 3 is a fireproof putty filling layer, and the fireproof putty filling layer is filled between the outer sleeve, the power line 1, and the control line 2. In this embodiment, the inner insulation layer 3 is SQ-1 fireproof putty material, which can ensure the flexibility of the cable and facilitate bending.

[0032] The beneficial effect of the utility model is: to provide a large-radius weight reduction for strong space radiation and strong nuclear radiation environments such as aerospace vehicles and nuclear power plants, and to reduce the weight of the vehicle under -70℃~250℃ ambient temperature and 5*10 9 The high-reliability cable can still operate stably for more than 60 years under strong rad radiation, and the weight of this cable is more than 40% lighter than the cable with the same current carrying capacity. It still shows stable chemical corrosion resistance in high temperature, low temperature and high frequency environment, and can operate for at least 60 minutes in a 1000℃ flame environment, meeting the emergency rescue needs of terminal equipment and facilities. In addition, the cable does not produce harmful substances in the entire production process, and can be recycled and reused. No corrosive gas escapes in various extreme environments such as high temperature, high pressure, radiation, and vacuum.

[0033] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be construed as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.

Claims

1. A radiation-resistant lightweight flexible fireproof cable, characterized in that: It comprises a cable core and an outer sleeve, wherein the outer sleeve is sleeved on the outside of the cable core; the cable core comprises a plurality of power lines, a plurality of control lines and an inner insulation layer, the outer sleeve comprises an outer insulation layer and a sheath, the sheath is sleeved on the outer insulation layer, and the sheath comprises a polyetherether sheath.

2. A radiation-resistant light-weight flexible fireproof cable according to claim 1, characterized in that: The inner heat insulation layer fills the gaps between the plurality of power lines, the plurality of control lines and the outer sleeve.

3. The radiation-resistant lightweight flexible fireproof cable according to claim 1, characterized in that: The cable core includes at least three power lines and at least two control lines.

4. The radiation-resistant light-weight flexible fireproof cable according to claim 1, characterized in that: The power cord comprises a conductor, a polyetheretherketone insulation layer, a hollow quartz fiber braided layer, and a tinned copper braided shielding layer from the inside to the outside.

5. The radiation-resistant light-weight flexible fireproof cable according to claim 1, characterized in that: The control line comprises a plurality of conductor monofilaments, a polyetheretheretherketone insulation layer wrapping the plurality of conductor monofilaments, and an aramid line filled between the conductor monofilaments and the polyetheretherketone insulation layer.

6. A radiation-resistant light-weight flexible fireproof cable according to claim 5, characterized in that: The conductor monofilament comprises an aluminum core wire, a middle copper layer and a covering silver layer from the inside to the outside.

7. The radiation-resistant light-weight flexible fireproof cable according to claim 1, characterized in that: The outer heat insulation layer comprises, from the inside to the outside, a mica tape wrapping layer, a hollow quartz fiber braiding layer, and a mica tape wrapping layer.

8. The radiation-resistant light-weight flexible fireproof cable according to claim 1, characterized in that: The inner heat insulation layer is a fireproof clay filling layer, and the fireproof clay filling layer is filled between the outer sleeve, the power line, and the control line.

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