Novel energy storage cable

Abstract

The utility model provides a novel energy storage cable, and belongs to the technical field of energy storage cables. According to the structure, a plurality of outer supports are arranged on the periphery of an armored pipe, a first cross-linked polyethylene layer is nested outside the outer supports, a steel wire mesh layer is nested outside the first cross-linked polyethylene layer, a PVC flame-retardant outer sleeve is nested outside the steel wire mesh layer, a silicate coating is arranged between the PVC flame-retardant outer sleeve and the steel wire mesh layer, and a waterproof layer is arranged between the PVC flame-retardant outer sleeve and the steel wire mesh layer. A middle cable core penetrates through the armored pipe, a peripheral cable core penetrates through the space between the adjacent outer supports, and brucite filler is filled in the position, outside the peripheral cable core, between the adjacent outer supports. According to the utility model, the armored pipe with the outer support is used as the inner support, so that the inner support effect is enhanced, the independent space for the cable cores is constructed, the relative position fixity between the cable cores is ensured, and the cable is not easy to deform. In addition, the flame-retardant structure is more reliable, and the technical advantages are remarkable.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of energy storage cable, specifically a new energy storage cable. BACKGROUND

[0002] Energy storage cable is a kind of cable that can store and return power while transmitting power. According to its specific implementation, there are many types of energy storage cable. The main types include power energy storage cable, thermochemical energy storage cable and flow energy storage cable.

[0003] Energy storage cable can store energy in the cable itself or energy storage equipment and release the stored energy to supply the load when needed. Energy storage cable has the following characteristics. 1. High control: Energy storage cable can monitor and manage the energy storage state in real time while storing power. This high control helps to control and optimize the power system. 2. High efficiency: Energy storage cable has high energy storage efficiency, which can quickly store power when needed and quickly release power when discharging, thus more efficiently meeting various load requirements. 3. Economy: The high efficiency and high control of energy storage cable can help improve the power supply reliability and stability of the power system, and help reduce the overall cost of the system. 4. Environmental protection: Energy storage cable can store and recycle power, which helps to improve the energy utilization rate of the power system and reduce energy consumption and environmental pollution. Energy storage cable is generally operated for a long time under load conditions, so its heat generation is relatively large, and the operating environment is complex and diverse, so the flame retardance of energy storage cable is required. In the prior art, the conventional flame retardant structure is constructed by filling high-density flame retardant materials, which can ensure that the cable is fully protected by the flame retardant material and reduce the contact between the ignition point and the air. However, this structure has a large extrusion effect on the cable core material, which can easily cause deformation of the cable core. In this case, how to balance the flame retardance and anti-deformation is a technical problem that needs to be solved in the field of energy storage cable. SUMMARY

[0004] The utility model aims at the technical defects of prior art, provides a new energy storage cable to solve the technical problem that conventional energy storage cable is difficult to balance flame retardance and anti-deformation.

[0005] To achieve the above technical purpose, the utility model adopts the following technical scheme:

[0006] The novel energy storage cable comprises a PVC flame-retardant sheath, a silicate coating, a steel wire mesh layer, a first cross-linked polyethylene layer, an armored tube, an outer support, a brucite filler, a middle cable core and an outer peripheral cable core, wherein a plurality of outer supports are arranged on the outer periphery of the armored tube, the first cross-linked polyethylene layer is nested outside the plurality of outer supports, the steel wire mesh layer is nested outside the first cross-linked polyethylene layer, the PVC flame-retardant sheath is nested outside the steel wire mesh layer, the silicate coating is arranged between the PVC flame-retardant sheath and the steel wire mesh layer, the middle cable core is arranged through the armored tube, the outer peripheral cable core is arranged through between adjacent outer supports, and the brucite filler is arranged between adjacent outer supports and outside the outer peripheral cable core.

[0007] Preferably, the outer support comprises a rib plate and an arc plate, wherein the axis of the armored tube is located on the plane where the rib plate is located, the arc plate is located at the outer end of the rib plate, and the axis of the arc plate coincides with the axis of the armored tube.

[0008] Preferably, a plurality of frame rings are nested between the outer support and the first cross-linked polyethylene layer, the plurality of frame rings are parallel to each other, a plurality of connecting rods are connected between adjacent frame rings, the connecting rods are parallel to the axis of the frame ring, and the frame ring is coaxial with the armored tube.

[0009] Preferably, the middle cable core comprises a polyolefin wire sheath, a flame retardant coating, a second cross-linked polyethylene layer and a copper conductor, wherein the second cross-linked polyethylene layer is nested outside the copper conductor, the polyolefin wire sheath is nested outside the second cross-linked polyethylene layer, and the flame retardant coating is arranged between the polyolefin wire sheath and the second cross-linked polyethylene layer.

[0010] Preferably, the outer peripheral cable core comprises a polyolefin wire sheath, a flame retardant coating, a second cross-linked polyethylene layer and a copper conductor, wherein the second cross-linked polyethylene layer is nested outside the copper conductor, the polyolefin wire sheath is nested outside the second cross-linked polyethylene layer, and the flame retardant coating is arranged between the polyolefin wire sheath and the second cross-linked polyethylene layer.

[0011] Preferably, the number of outer supports is 4, and the 4 outer supports are uniformly distributed in the circumferential direction on the outer wall of the armored tube; the number of outer peripheral cable cores is 4, and the 4 outer peripheral cable cores are uniformly distributed in the circumferential direction outside the middle cable core.

[0012] In the above technical scheme, the PVC flame-retardant sheath and the first cross-linked polyethylene layer form a two-level flame-retardant layer structure, the steel wire mesh layer is arranged between the two, mainly playing a supporting and protecting role; the silicate coating located inside the PVC flame-retardant sheath further ensures the flame-retardant effect. The armored tube independently protects the middle cable core, and the outer support forms a plurality of accommodation areas, each of which accommodates an outer peripheral cable core, so that each cable core is in an independent state. The brucite filler is filled between adjacent outer supports, further improving the reliability of the flame retardant.

[0013] In the preferred technical solution, a frame structure composed of a frame ring and a connecting rod can be further added outside the outer support, thereby playing a supporting role between the first cross-linked polyethylene layer and the brucite filler. In addition, an independent flame-retardant structure for the copper wire is optimized, and a second cross-linked polyethylene layer and a polyolefin wire sheath are sequentially arranged outside, and a flame retardant coating is arranged, thereby fully ensuring the flame-retardant effect.

[0014] The utility model provides a novel energy storage cable. The technical scheme adopts the armored pipe with the outer support as the inner support, strengthens the inner support effect and builds the independent space for the cable core, guarantees the fixity of relative position between the cable core, ensures that the cable is not easy to deform, and the flame-retardant structure of the utility model is more reliable, and the technical advantage is remarkable. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is the overall view of the utility model;

[0016] Figure 2 It is the structure view of frame ring and connecting rod;

[0017] Figure 3 It is the structure view of armored pipe and outer support;

[0018] Figure 4 It is the structure view of each of intermediate cable core and outer peripheral cable core;

[0019] In the drawings:

[0020] 1. PVC flame retardant jacket 2. Silicate coating 3. Steel mesh layer 4. First cross-linked polyethylene layer 5. Armoured tube 6. Outer support 7. Brucite filler 8. Central cable core 9. Peripheral cable core 10. Frame ring 11. Linkage 12. Polyolefin sheath 13. Flame retardant coating 14. Second cross-linked polyethylene layer 15. Copper conductor. DETAILED DESCRIPTION

[0021] The specific embodiment of the utility model will be described in detail below. In order to avoid too many unnecessary details, the structure or function belonging to the known will not be described in detail in the following examples. The approximate language used in the following examples can be used for quantitative description, indicating that the quantity can have certain changes without changing the basic function. Unless defined, the technical and scientific terms used in the following examples have the same meaning as generally understood by the person skilled in the art to which the utility model belongs.

[0022] Example 1

[0023] A novel energy storage cable, such as Figures 1 to 4As shown, including PVC flame-retardant sheath 1, silicate coating 2, steel mesh layer 3, the first cross-linked polyethylene layer 4, armored tube 5, outer support 6, brucite filler 7, intermediate cable core 8, outer peripheral cable core 9, wherein, there are several outer supports 6 on the outer periphery of the armored tube 5, the first cross-linked polyethylene layer 4 is nested outside the several outer supports 6, the steel mesh layer 3 is nested outside the first cross-linked polyethylene layer 4, the PVC flame-retardant sheath 1 is nested outside the steel mesh layer 3, the silicate coating 2 is arranged between the PVC flame-retardant sheath 1 and the steel mesh layer 3, the intermediate cable core 8 is penetrated in the armored tube 5, the outer peripheral cable core 9 is penetrated between adjacent outer supports 6, the brucite filler 7 is filled between adjacent outer supports 6, outside the outer peripheral cable core 9. Wherein, the PVC flame-retardant sheath 1 and the first cross-linked polyethylene layer 4 constitute a two-stage flame-retardant layer structure, the steel mesh layer 3 is arranged between the two, mainly plays a supporting, protection and the like; The silicate coating 2 inside the PVC flame-retardant sheath 1 further ensures the flame-retardant effect. The armored tube 5 plays an independent protection role on the intermediate cable core 8, the outer support 6 constructs a plurality of containing areas, each containing area contains an outer peripheral cable core 9, so that each cable core is in an independent state. The brucite filler 7 is filled between adjacent outer supports 6, further improving the reliability of flame retardation.

[0024] Example 2

[0025] A new energy storage cable, such as Figures 1 to 4As shown, including PVC flame-retardant sheath 1, silicate coating 2, steel mesh layer 3, the first crosslinked polyethylene layer 4, armored pipe 5, outer support 6, brucite filler 7, intermediate cable core 8, outer peripheral cable core 9, wherein, there are several outer supports 6 on the outer wall of the armored pipe 5, the first crosslinked polyethylene layer 4 is nested outside the several outer supports 6, the steel mesh layer 3 is nested outside the first crosslinked polyethylene layer 4, the PVC flame-retardant sheath 1 is nested outside the steel mesh layer 3, the silicate coating 2 is arranged between the PVC flame-retardant sheath 1 and the steel mesh layer 3, the intermediate cable core 8 is penetrated in the armored pipe 5, the outer peripheral cable core 9 is penetrated between adjacent outer supports 6, and the brucite filler 7 is filled outside the outer peripheral cable core 9 between adjacent outer supports 6. Wherein, the outer support 6 comprises a rib plate and a curved plate, wherein the axis of the armored pipe 5 is located on the plane where the rib plate is located, the curved plate is located at the outer end of the rib plate, and the axis of the curved plate coincides with the axis of the armored pipe 5. A plurality of frame rings 10 are nested between the outer support 6 and the first crosslinked polyethylene layer 4, the plurality of frame rings 10 are parallel to each other, a plurality of connecting rods 11 are connected between adjacent frame rings 10, the connecting rod 11 is parallel to the axis of the frame ring 10, and the frame ring 10 is coaxial with the armored pipe 5. The intermediate cable core 8 and the outer peripheral cable core 9 each comprise a polyolefin wire sheath 12, a flame retardant coating 13, a second crosslinked polyethylene layer 14, and a copper wire 15, wherein the second crosslinked polyethylene layer 14 is nested outside the copper wire 15, the polyolefin wire sheath 12 is nested outside the second crosslinked polyethylene layer 14, and the flame retardant coating 13 is arranged between the polyolefin wire sheath 12 and the second crosslinked polyethylene layer 14. The number of outer supports 6 is four, and the four outer supports 6 are uniformly distributed in the circumferential direction on the outer wall of the armored pipe 5; the outer peripheral cable core 9 has four, and the four outer peripheral cable cores 9 are uniformly distributed in the circumferential direction outside the intermediate cable core 8.

[0026] The above embodiments of the present application are described in detail, but the content described is only the preferred embodiment of the present application, and is not used to limit the present application. Any modification, equivalent replacement and improvement made within the application range of the present application shall be included in the protection range of the present application.

Claims

1. A novel energy storage cable, characterized by The application relates to a cable, which comprises a PVC flame-retardant sheath (1), a silicate coating (2), a steel mesh layer (3), a first cross-linked polyethylene layer (4), an armoured tube (5), an outer support (6), a brucite filler (7), a middle cable core (8) and a peripheral cable core (9), wherein a plurality of outer supports (6) are arranged on the outer periphery of the armoured tube (5), the first cross-linked polyethylene layer (4) is nested outside the plurality of outer supports (6), the steel mesh layer (3) is nested outside the first cross-linked polyethylene layer (4), the PVC flame-retardant sheath (1) is nested outside the steel mesh layer (3), the silicate coating (2) is arranged between the PVC flame-retardant sheath (1) and the steel mesh layer (3), the middle cable core (8) penetrates through the armoured tube (5), the peripheral cable core (9) penetrates through between adjacent outer supports (6), and the brucite filler (7) is filled between adjacent outer supports (6) and at positions outside the peripheral cable core (9).

2. A novel energy storage cable according to claim 1, characterized in that, The outer support (6) comprises a rib plate and an arc plate, the axis of the armoured tube (5) is located on the plane of the rib plate, the arc plate is located at the outer end of the rib plate, and the axis of the arc plate coincides with the axis of the armoured tube (5).

3. A novel energy storage cable according to claim 1, characterized in that, A plurality of frame rings (10) are nested between the outer support (6) and the first cross-linked polyethylene layer (4), the frame rings (10) are parallel to each other, a plurality of connecting rods (11) are connected between adjacent frame rings (10), the connecting rod (11) is parallel to the axis of the frame ring (10), and the frame ring (10) is coaxial with the armoured tube (5).

4. A novel energy storage cable according to claim 1, characterized in that, The middle cable core (8) comprises a polyolefin wire sheath (12), a flame retardant coating (13), a second cross-linked polyethylene layer (14) and a copper wire (15), wherein the second cross-linked polyethylene layer (14) is nested outside the copper wire (15), the polyolefin wire sheath (12) is nested outside the second cross-linked polyethylene layer (14), and the flame retardant coating (13) is arranged between the polyolefin wire sheath (12) and the second cross-linked polyethylene layer (14).

5. A novel energy storage cable according to claim 1, characterized in that, The peripheral cable core (9) comprises a polyolefin wire sheath (12), a flame retardant coating (13), a second cross-linked polyethylene layer (14) and a copper wire (15), wherein the second cross-linked polyethylene layer (14) is nested outside the copper wire (15), the polyolefin wire sheath (12) is nested outside the second cross-linked polyethylene layer (14), and the flame retardant coating (13) is arranged between the polyolefin wire sheath (12) and the second cross-linked polyethylene layer (14).

6. A novel energy storage cable according to claim 1, characterized in that, The number of the outer supports (6) is four, and the four outer supports (6) are uniformly distributed in the circumferential direction on the outer wall of the armoured tube (5); the number of the peripheral cable cores (9) is four, and the four peripheral cable cores (9) are uniformly distributed in the circumferential direction outside the middle cable core (8).

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