Dynamic cooling economical power cable
By using aluminum alloy conductors, liquid-cooled insulation layers, and sheath layers in the cable, combined with temperature-sensing optical fibers and a liquid-cooling circulation system, the problem of insufficient cable heat dissipation is solved, achieving efficient and economical dynamic cooling, reducing costs, and improving the safety and stability of the cable.
Patent Information
- Application Number
- CN202520050638.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-09
- Publication Date
- 2025-12-26
- Estimated Expiration
- 2035-01-09
AI Technical Summary
Existing cables have insufficient heat dissipation capacity in high-load power projects, resulting in high cost of copper conductor materials and unsatisfactory heat dissipation effect, especially when the ambient temperature rises in summer.
It uses an aluminum alloy conductor combined with a liquid-cooled insulation layer and a liquid-cooled sheath layer, and has built-in temperature-sensing optical fiber. It achieves dynamic cooling through a liquid-cooled circulation system, monitors the temperature, and controls the circulation and flow rate of the coolant.
It reduces cable costs, improves heat dissipation, ensures safe and stable operation of the cable under high load, and has real-time temperature monitoring and cooling control functions.
Smart Images
Figure CN223728508U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to cable technical field especially, is a kind of dynamic cooling economic power cable. BACKGROUND
[0002] At present, economic society develops rapidly, super high landmark building, large-scale industrial park, petroleum chemical industry, steel plant and other large load power engineering are increasing. The fluctuation of copper material price will directly affect the market of copper conductor cable. Under the restriction of load capacity and economy, effectively improve the heat dissipation capacity of cable body, can replace copper conductor material and realize the high-power transmission of electric energy. At present, the cable heat dissipation in engineering is generally taken in the form of increasing laying space or adding active air supply, when the ambient temperature rises in summer, the effect is often not ideal. UTILITARY MODEL CONTENT
[0003] The utility model discloses a kind of dynamic cooling economic power cable to solve the above problems.
[0004] The utility model discloses the above-mentioned purposes are realized by the following technical solutions:
[0005] A kind of dynamic cooling economic power cable, including at least three liquid cooling insulation wire core, liquid cooling insulation wire core includes aluminum alloy conductor, aluminum alloy conductor outside is provided with liquid cooling insulation layer, liquid cooling insulation layer is provided with the insulation liquid cooling channel parallel to aluminum alloy conductor, temperature measuring optical fiber is provided with between liquid cooling insulation wire core, liquid cooling insulation wire core outside is provided with the hollow structure's fan-shaped support strip, liquid cooling insulation wire core and temperature measuring optical fiber and fan-shaped support strip are stranded into cable, the cable core after stranding is extruded and wrapped with liquid cooling sheath layer, liquid cooling sheath layer is provided with sheath liquid cooling channel.
[0006] Further setting: insulation liquid cooling channel is evenly distributed in liquid cooling insulation layer in fan shape, and insulation liquid cooling channel is provided with five, liquid cooling insulation layer is crosslinked polyethylene material.
[0007] Further setting: fan-shaped support strip and the outer circle of cable core are circular structure.
[0008] Further setting: one fan-shaped support strip can be replaced by corresponding auxiliary wire core, and the ratio of the outer diameter of auxiliary wire core and liquid cooling insulation wire core is close to but not more than 0.48.
[0009] Further setting: liquid cooling sheath layer is high-density polyethylene material, sheath liquid cooling channel is evenly distributed in liquid cooling sheath layer in fan shape.
[0010] Further setting: cable one end is provided with the pump body that is communicated with insulation liquid cooling channel and sheath liquid cooling channel, insulation liquid cooling channel and sheath liquid cooling channel are provided with cooling liquid.
[0011] Compared with the prior art, the utility model has the advantages of the following:
[0012] 1, the conductor adopts aluminium alloy material instead of copper material, and realizes high -power power transmission through liquid cooling heat dissipation, greatly reduces cost, improves product economy;
[0013] 2, liquid cooling insulation layer and liquid cooling sheath layer all are equipped with liquid cooling channel, and the cooling liquid flows from the insulation liquid cooling channel, returns and flows out from the sheath liquid cooling channel, and the pump body is installed at one end of the line, so that liquid cooling circulation can be realized;
[0014] 3, liquid cooling insulation layer and liquid cooling sheath layer all adopt polyethylene material, because polyethylene does not contain hydrophilic group, has excellent waterproof performance, can guarantee that the cable is safely and stably operated under the circulation of cooling liquid;
[0015] 4, the cable built-in temperature measuring optical fiber can monitor the cable operating temperature in real time and feed back to the monitoring system, and the system can control whether the cooling liquid circulation and flow rate are started according to the sampling data. BRIEF DESCRIPTION OF DRAWINGS
[0016] In order to more clearly illustrate the technical scheme in the embodiment of the utility model or prior art, the following will briefly introduce the drawings needed to be used in the embodiment or prior art description, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can be obtained according to these drawings without creative labor.
[0017] Figure 1 It is the cross section structure schematic diagram of the dynamic cooling economic power cable described in the utility model.
[0018] The following explains the reference signs:
[0019] 1, temperature measuring optical fiber;2, aluminium alloy conductor;3, liquid cooling insulation layer;4, insulation liquid cooling channel;5, fan-shaped support strip;6, liquid cooling sheath layer;7, sheath liquid cooling channel. DETAILED DESCRIPTION
[0020] In the description of the utility model, it is necessary to understand that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as limiting the utility model. Moreover, the terms "first", "second" and the like are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" and the like can explicitly or implicitly include one or more features. In the description of the utility model, the meaning of "a plurality of" is two or more, unless otherwise specified.
[0021] In the description of the utility model, it should be explained that, unless otherwise explicitly specified and limited, the terms "mounting", "connection" and "connection" should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be connected inside two elements. For ordinary skilled persons in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.
[0022] The utility model will be further described below in combination with the drawings:
[0023] As Figure 1 shown, a kind of dynamic cooling economic power cable, including at least three liquid cooling insulation wire core, liquid cooling insulation wire core includes aluminum alloy conductor 2, aluminum alloy conductor 2 mechanical performance is close to copper conductor, so that cable structure is safe and reliable, aluminum alloy conductor 2 outside is provided with liquid cooling insulation layer 3, liquid cooling insulation layer 3 is provided with the insulation liquid cooling channel 4 parallel to aluminum alloy conductor 2, temperature measuring optical fiber 1 is provided with between liquid cooling insulation wire core, can real-time monitoring cable operating temperature feedback to monitoring system, system can be according to sampling data control whether to open the circulation and flow rate of cooling liquid, liquid cooling insulation wire core outside is provided with the hollow structure's fan-shaped support strip 5, fan-shaped support strip 5 high strength, can guarantee that cable core is round, circular hollow structure can improve the heat dissipation capacity of cable, liquid cooling insulation wire core and temperature measuring optical fiber 1 and fan-shaped support strip 5 are stranded into cable, cable core after stranding is extruded and packed with liquid cooling sheath layer 6, liquid cooling sheath layer 6 is provided with sheath liquid cooling channel 7.
[0024] In the embodiment: the insulation liquid cooling channels 4 are evenly distributed in the liquid cooling insulation layer 3 in a fan shape, and the insulation liquid cooling channels 4 are provided with five, the liquid cooling insulation layer 3 is made of cross-linked polyethylene material, the liquid cooling sheath layer 6 is made of high-density polyethylene material, because polyethylene does not contain hydrophilic groups, it has excellent waterproof performance, can ensure that the cable runs safely and stably under the circulation of the cooling liquid, and the material has high mechanical strength, can meet the support strength of the liquid cooling channel, the sheath liquid cooling channel 7 is evenly distributed in the liquid cooling sheath layer 6 in a fan shape, one end of the cable is provided with a pump body in communication with the insulation liquid cooling channel 4 and the sheath liquid cooling channel 7, and the insulation liquid cooling channel 4 and the sheath liquid cooling channel 7 are provided with cooling liquid, the cooling liquid flows into the insulation liquid cooling channel 4 and returns from the sheath liquid cooling channel 7 through the pump body, and the liquid cooling circulation is realized.
[0025] The fan-shaped support strips 5 are in a circular structure with the outer circle of the cable core, so as to ensure the support performance of the cable.
[0026] When the neutral line or the ground wire is needed in the cable, one of the fan-shaped support strips 5 can be replaced by a corresponding auxiliary core, and the ratio of the outer diameter of the auxiliary core to the outer diameter of the liquid cooling insulation core is close to but does not exceed 0.48, so as to change the use range of the cable.
[0027] The working principle and use process of the utility model: the mechanical performance of the aluminum alloy conductor 2 is close to that of the copper conductor, so that the cable structure is safe and reliable, the liquid cooling insulation layer 3 and the liquid cooling sheath layer 6 are made of polyethylene material, which has high insulation performance, is not easy to absorb water and has excellent mechanical performance, can meet the support strength of the insulation liquid cooling channel 4 and the sheath liquid cooling channel 7, the fan-shaped support strips 5 ensure that the cable core is round, the circular hollow structure can improve the heat dissipation capacity of the cable, the temperature measuring optical fiber 1 is built-in in the center of the cable, and the running temperature of the cable can be monitored in real time, when the temperature of a certain time or a certain section of the cable is too high during system operation, the temperature data will be fed back to the monitoring system in time, and the system can control whether to start the circulation and flow rate of the cooling liquid according to the sampling data.
[0028] The basic principle, main features and advantages of the utility model are shown and described. It should be understood by those skilled in the art that the utility model is not limited by the above embodiments, and the above embodiments and descriptions in the specification are only to illustrate the principle of the utility model, and various changes and improvements can be made without departing from the spirit and scope of the utility model, and these changes and improvements all fall within the scope of the utility model claimed.
Claims
1. A dynamically cooled, economy power cable, characterized by: The liquid-cooled insulated core includes at least three strands, each of which comprises an aluminum alloy conductor (2) outside which is provided with a liquid-cooled insulation layer (3), and inside which is provided with an insulation liquid cooling channel (4) parallel to the aluminum alloy conductor (2); a temperature measuring optical fiber (1) is provided through the liquid-cooled insulated cores; a hollow sector-shaped support strip (5) is provided outside the liquid-cooled insulated cores; the liquid-cooled insulated cores, the temperature measuring optical fiber (1) and the sector-shaped support strip (5) are twisted into a cable; and the cable core after being twisted is extruded and wrapped with a liquid-cooled sheath layer (6) inside which is provided with a sheath liquid cooling channel (7).
2. A dynamically cooled, economic power cable according to claim 1, characterized in that: The insulation liquid cooling channels (4) are evenly distributed in the liquid-cooled insulation layer (3) in the form of sectors, and there are five insulation liquid cooling channels (4); and the liquid-cooled insulation layer (3) is made of cross-linked polyethylene.
3. A dynamically cooled, economic power cable according to claim 1, characterized in that: The sector-shaped support strip (5) and the outer ring of the cable core are in a circular structure.
4. A dynamically cooled, economy power cable according to claim 1, characterized in that: One of the sector-shaped support strips (5) can be replaced by a corresponding auxiliary core, and the ratio of the outer diameter of the auxiliary core to the outer diameter of the liquid-cooled insulated core is close to but does not exceed 0.
48.
5. A dynamically cooled, economy power cable according to claim 2, characterized in that: The liquid-cooled sheath layer (6) is made of high-density polyethylene, and the sheath liquid cooling channel (7) is evenly distributed in the liquid-cooled sheath layer (6) in the form of sectors.
6. A dynamically cooled, economic power cable according to claim 5, characterized in that: One end of the cable is provided with a pump body in communication with the insulation liquid cooling channel (4) and the sheath liquid cooling channel (7), and the insulation liquid cooling channel (4) and the sheath liquid cooling channel (7) are provided with cooling liquid.