CN108152621A - For improving the device of current-carrying capacity of cable - Google Patents
For improving the device of current-carrying capacity of cable Download PDFInfo
- Publication number
- CN108152621A CN108152621A CN201711364659.5A CN201711364659A CN108152621A CN 108152621 A CN108152621 A CN 108152621A CN 201711364659 A CN201711364659 A CN 201711364659A CN 108152621 A CN108152621 A CN 108152621A
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- Prior art keywords
- cable
- carrying capacity
- conductor
- current
- hollow
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
Abstract
The present invention provides a kind of for improving the device of current-carrying capacity of cable, which includes：Conductor tube, in parallel with cable, the flow channel being internally provided with for accommodating streaming flow of the conductor tube, for forming the low-temperature space that temperature is less than the cable around the cable.Provided by the present invention for improving the device of current-carrying capacity of cable, by the conductor tube in parallel with cable, to reduce the resistance of cable place circuit, and then reduce the electric current to circulate on cable, so as to reduce the loss of current-carrying capacity of cable, to improve the current-carrying capacity of cable；Streaming flow is accommodated by the flow channel set in conductor tube, the low-temperature space that a temperature is less than cable is formed so as to the temperature for reducing conductor tube and around cable, and then to a greater degree absorbing cable diverging heat to improve the heat-sinking capability of cable, so as to further reduce cable current-carrying capacity loss i.e. improve cable current-carrying capacity.
Description
Technical field
The present invention relates to cable connector pressure measurement technology fields, are used to improve cable current-carrying in particular to one kind
The device of amount.
Background technology
It is increased year by year with the continuous expansion of China's city size, the electricity consumption of various regions and with power load, increases electric power newly
Equipment is to ensure a method of power demands, but the space in city and subterranean resource are often very limited, lead to newly added equipment ratio
It is more difficult；The conveying capacity of existing line is promoted, can preferably realize its economic benefit and social benefit.
Current-carrying capacity is a performance parameter of the conveying capacity concerning power cable, the long-term highest work that conductor allows
Temperature can influence the size of rated current-carrying capacity.Loss and cable of the current-carrying capacity of cable run depending on cable itself are to outside
Heat-sinking capability.Wherein, the loss of cable includes the loss of cable conductor, cable insulation and metallic sheath, armouring；Cable is external
The heat-sinking capability in portion is by the influence of medium thermal resistivity in external environment condition parameter, such as environment temperature, cable adjacent domain.
Multiloop cable cluster laying, submarine cable log in the specific system of laying such as section laying and cable in channel
Road load is influenced close under the conditions of the operating conditions such as design value by material property and adjacent lines, in cable metal set, armouring
Larger loss can be generated, current-carrying capacity of cable formation is significantly affected；Meanwhile the radiating condition of cable run deteriorates, into one
The current capacity of cable run is weakened, and serious threat is constituted to the safe operation of cable run to step.
Invention content
In consideration of it, the present invention proposes a kind of device for being used to improve current-carrying capacity of cable, it is intended to solve existing cable current-carrying
The problem of loss causes current-carrying capacity of cable low greatly.
The present invention proposes a kind of device for being used to improve current-carrying capacity of cable, this is used for the device packet for improving current-carrying capacity of cable
It includes：Conductor tube, in parallel with cable, the flow channel being internally provided with for accommodating streaming flow of the conductor tube is used
In around the cable formed temperature be less than the cable low-temperature space.
Further, above-mentioned for improving the device of current-carrying capacity of cable, the conductor tube includes：It is in parallel with the cable
Hollow conductor；The insulating layer set on the hollow conductor inner wall is applied, for the hollow housing flowing stream internal with it to be isolated
Body.
Further, the above-mentioned device for being used to improve current-carrying capacity of cable, the both ends open of the hollow conductor, for inputting
Or output streaming flow.
Further, above-mentioned for improving the device of current-carrying capacity of cable, the hollow conductor is set up in parallel with the cable,
It is used to form a low-temperature space being set up in parallel with the cable.
Further, above-mentioned for improving the device of current-carrying capacity of cable, the outer wall of the hollow conductor is provided with protective layer,
For protecting the hollow housing.
Further, above-mentioned for improving the device of current-carrying capacity of cable, the both ends of the conductor tube are connected respectively by conductor
Fitting is in parallel with the cable.
Further, above-mentioned for improving the device of current-carrying capacity of cable, the cut cable of the conductor adapting piece is connected to institute
State the cable metal sheath or armor of cable.
Further, above-mentioned for improving the device of current-carrying capacity of cable, the streaming flow that the flow channel accommodates is pre-
If temperature and being circulated with scheduled rate.
Provided by the present invention for improving the device of current-carrying capacity of cable, by the conductor tube in parallel with cable, to reduce
The resistance of circuit where cable, and then reduce the electric current to circulate on cable, so as to reduce the loss of current-carrying capacity of cable, to improve
The current-carrying capacity of cable；Streaming flow is accommodated by the flow channel that is set in conductor tube, so as to the temperature that reduces conductor tube and
Form the low-temperature space that temperature is less than cable around cable, and then the heat of absorbing cable diverging to a greater degree is to improve
The heat-sinking capability of cable, so as to which the current-carrying capacity loss for further reducing cable improves the current-carrying capacity of cable.
Further, provided by the present invention for the device of raising current-carrying capacity of cable, conductor is realized by conductor adapting piece
Pipe is in parallel with cable, has the advantages of simple structure and easy realization；Meanwhile conductor tube need to be only connected in parallel on cable by conductor adapting piece,
The structure of circuit where changing cable is not needed to, convenient for construction, can also be implemented in the cable run to have put into operation.
Description of the drawings
By reading the detailed description of hereafter preferred embodiment, it is various other the advantages of and benefit it is common for this field
Technical staff will become clear.Attached drawing is only used for showing the purpose of preferred embodiment, and is not considered as to the present invention
Limitation.And throughout the drawings, the same reference numbers will be used to refer to the same parts.In the accompanying drawings：
Fig. 1 is the usage state diagram of the device provided in an embodiment of the present invention for being used to improve current-carrying capacity of cable.
Specific embodiment
The exemplary embodiment of the disclosure is more fully described below with reference to accompanying drawings.Although the disclosure is shown in attached drawing
Exemplary embodiment, it being understood, however, that may be realized in various forms the disclosure without should be by embodiments set forth here
It is limited.On the contrary, these embodiments are provided to facilitate a more thoroughly understanding of the present invention, and can be by the scope of the present disclosure
Completely it is communicated to those skilled in the art.It should be noted that in the absence of conflict, embodiment in the present invention and
Feature in embodiment can be combined with each other.The present invention will be described in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
Well-known to those skilled in the art to be referring to Fig. 1, cable 3 includes：Cable conductor 31 and it is coated on cable successively
Cable insulation 32, cable metal sheath 33 and protective coverings of cable 34 outside conductor 31；It is excellent for ease of the fixed laying of cable 3
Selection of land is provided with armor between cable metal sheath 33 and protective coverings of cable 34（It is not shown in figure）；Those skilled in the art
It is generally known that the current-carrying capacity loss of cable 3 includes cable conductor 31, cable insulation 32 and cable metal sheath 33, armouring
The magnitude of current loss of layer.
It, should to be provided in an embodiment of the present invention for improving the structure diagram of the device of current-carrying capacity of cable referring to Fig. 1
Device for improving current-carrying capacity of cable includes：Conductor tube 1 and two conductor adapting pieces 2；Wherein, conductor tube 1 is used for and cable 3
Parallel connection, the flow channel 11 being internally provided with for accommodating streaming flow of conductor tube 1, for forming temperature around cable 3
Less than the low-temperature space of cable 4.
Specifically, conductor tube 1 is in parallel with cable 3, to reduce the resistance of 3 place circuit of cable, and then reduce cable 3
The electric current of upper circulation, so as to reduce the loss of 3 current-carrying capacity of cable, to improve the current-carrying capacity of cable 3；For uniform conductor pipe 1
Cooling, flow channel 11 are set to the center of conductor tube 1 and are opened up along the length direction of conductor tube 1；In flow channel 11
The streaming flow circulated is accommodated, one is formed so as to the temperature for reducing conductor tube 1 and around cable 3 than cable 3
The low low-temperature space of temperature, so to a greater degree absorbing cable 3 dissipate heat to improve the heat-sinking capability of cable 3, so as to subtract
The current-carrying capacity loss of small cable 3 improves the current-carrying capacity of cable 3；Preferably, the streaming flow that flow channel 11 accommodates is default
It temperature and is circulated with scheduled rate, to ensure that the temperature of low-temperature space is less than the temperature of cable 3；To save cost, into one
Preferably, streaming flow is flow to step；Wherein, the scheduled rate of streaming flow and preset temperature can be determined with actual conditions, and
It can be adjusted by the equipment of external input fluid.
With continued reference to Fig. 1, the both ends of conductor tube 1 are in parallel with cable 3 by conductor adapting piece 2 respectively.
Specifically, conductor adapting piece 2 is metal contact wires；The conductor end of conductor adapting piece 2（Left end as shown in Figure 1）
It is all connected in conductor tube 1, the cut cable of conductor adapting piece 2（Right end as shown in Figure 1）For being connected to cable 3；Due to
It is connected between cable metal sheath 33, armor and cable conductor 31, cable insulation 32 4, it is preferable that conductor connects
The cut cable of part 2 is connected with cable metal sheath 33 or armor, to realize that cable conductor 31 is in parallel with conductor tube 1,
So as to which the loss for reducing by 3 current-carrying capacity of cable improves the current-carrying capacity of cable 3.
Obviously be achieved that, it is provided in this embodiment for improving the device of current-carrying capacity of cable, by with cable 3 simultaneously
The conductor tube 1 of connection to reduce the resistance of 3 place circuit of cable, and then reduces the electric current to circulate on cable 3, so as to reduce electricity
The loss of 3 current-carrying capacity of cable, to improve the current-carrying capacity of cable 3；Flowing stream is accommodated by the flow channel 11 set in conductor tube 1
Body forms the low-temperature space that a temperature is less than cable 3, and then bigger so as to the temperature for reducing conductor tube 1 and around cable 3
Degree absorbing cable 3 dissipate heat to improve the heat-sinking capability of cable 3, so as to further reduce cable 3 current-carrying capacity damage
Consumption improves the current-carrying capacity of cable 3.
Further, it is provided in this embodiment for improving the device of current-carrying capacity of cable, it is led by the realization of conductor adapting piece 2
Body pipe 1 is in parallel with cable 3, has the advantages of simple structure and easy realization；Meanwhile conductor tube 1 need to be only connected in parallel to by conductor adapting piece 2
It on cable 3, does not need to change the structure of 3 place circuit of cable, convenient for construction, can also be carried out in the cable run to have put into operation real
It applies.
With continued reference to Fig. 1, conductor tube 1 includes：Hollow conductor 12, insulating layer 13 and protective layer 14；Wherein, hollow conductor 12
It is in parallel with cable 3.
Specifically, hollow conductor 12 is hollow metal pipe, and both ends open, to input or export streaming flow, into
And realize the circulating property of streaming flow in hollow conductor 12, a temperature is formed around cable 3 less than electricity to realize
The low-temperature space of the constant temperature of cable 3 damages so as to further improve the heat-sinking capability of cable 3 further to reduce the current-carrying capacity of cable 3
Consumption；Current-carrying capacity further to reduce cable 3 is lost, hollow conductor 12 and cable 3 be set up in parallel i.e. with 3 parallel lay-up of cable,
A low-temperature space being arranged in parallel with cable 3 is used to form, so as to the heat of 3 place circuit diverging of equably absorbing cable, into
And further improve the heat-sinking capability of cable 3.
With continued reference to Fig. 1, insulating layer 13 applies the inner wall set on hollow conductor 12, for hollow housing 11 and hollow shell to be isolated
Streaming flow inside body 11.
Specifically, the inner wall complete cycle of hollow conductor 12 be coated with a layer insulating 13, so as to by hollow conductor 12 in
Streaming flow in empty conductor 12 is being electrically isolated, while prevents streaming flow to the leaktightness of wall of tubes of hollow conductor 12, and then
Hollow conductor 12 is avoided to leak；Wherein, insulating layer 13 can be polyethylene layer.
With continued reference to Fig. 1, protective layer 14 is set to the outer wall of hollow conductor 12, for protecting hollow housing, into
And so that hollow conductor 12 is being electrically isolated with the external environment outside hollow conductor 12, so as to prevent the rust of hollow conductor 12
Erosion.
It will be readily appreciated that conductor tube 1 provided in this embodiment, is parallel to by hollow conductor 12 on cable 3, it is real
Now reduce the purpose of 3 place line resistance of cable, and 12 inner hollow of hollow conductor can accommodate streaming flow, to realize in electricity
The low-temperature space that a temperature is less than cable 3 is formed around cable 3；By the insulating layer 13 of 12 inner wall of hollow conductor, led hollow
Body 12 is being electrically isolated with the streaming flow in hollow conductor 12, while the tube wall for preventing streaming flow to hollow conductor 12 oozes
Leakage, and then avoid hollow conductor 12 and leak；Pass through the protective layer 14 of 12 outer wall of hollow conductor so that hollow conductor 12 with it is hollow
External environment outside conductor 12 is being electrically isolated, so as to prevent the corrosion of hollow conductor 12, further to avoid hollow lead
The leakage of body 12 improves the service life of hollow conductor 12；Meanwhile the setting of insulating layer 13 and protective layer 14 is by hollow conductor 12
It is being electrically isolated, the danger got an electric shock can be prevented.
To sum up, what is provided in the present embodiment is used to improve the device of current-carrying capacity of cable, provided in this embodiment to be used to improve
The device of current-carrying capacity of cable by the conductor tube 1 in parallel with cable 3, to reduce the resistance of 3 place circuit of cable, and then subtracts
The electric current to circulate on small cable 3, so as to reduce the loss of 3 current-carrying capacity of cable, to improve the current-carrying capacity of cable 3；Pass through conductor
The flow channel 11 set in pipe 1 accommodates streaming flow, so as to the temperature for reducing conductor tube 1 and forms one around cable 3
A temperature is less than the low-temperature space of cable 3, and then the heat that absorbing cable 3 dissipates to a greater degree is to improve the heat radiation energy of cable 3
Power, so as to which the current-carrying capacity loss for further reducing cable 3 improves the current-carrying capacity of cable 3.
Further, it is provided in this embodiment for improving the device of current-carrying capacity of cable, it is led by the realization of conductor adapting piece 2
Body pipe 1 is in parallel with cable 3, has the advantages of simple structure and easy realization；Meanwhile conductor tube 1 need to be only connected in parallel to by conductor adapting piece 2
It on cable 3, does not need to change the structure of 3 place circuit of cable, convenient for construction, can also be carried out in the cable run to have put into operation real
It applies.
Obviously, various changes and modifications can be made to the invention without departing from essence of the invention by those skilled in the art
God and range.In this way, if these modifications and changes of the present invention belongs to the range of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to include these modifications and variations.
Claims (9)
1. a kind of device for being used to improve current-carrying capacity of cable, which is characterized in that including：
Conductor tube（1）, it is used for and cable（3）Parallel connection, the conductor tube（1）The stream being internally provided with for accommodating streaming flow
Dynamic channel（11）, in the cable（3）Surrounding forms temperature and is less than the cable（3）Low-temperature space.
2. the device according to claim 1 for being used to improve current-carrying capacity of cable, which is characterized in that the conductor tube（1）Packet
It includes：
With the cable（3）Hollow conductor in parallel（12）；
It applies and is set on the hollow conductor（12）The insulating layer of inner wall（13）, for the hollow housing flowing internal with it to be isolated
Fluid.
3. the device according to claim 2 for being used to improve current-carrying capacity of cable, which is characterized in that
The hollow conductor（12）Both ends open, for inputting or exporting streaming flow.
4. the device according to claim 2 for being used to improve current-carrying capacity of cable, which is characterized in that
The hollow conductor（12）With the cable（3）It is set up in parallel, is used to form one and the cable（3）It is set up in parallel
Low-temperature space.
5. the device according to claim 2 for being used to improve current-carrying capacity of cable, which is characterized in that
The hollow conductor（12）Outer wall be provided with protective layer（14）, for the hollow housing（12）It is protected.
6. the device according to claim 2 for being used to improve current-carrying capacity of cable, which is characterized in that the hollow conductor（12）
For metal tube conductor.
7. the device according to any one of claims 1 to 6 for being used to improve current-carrying capacity of cable, which is characterized in that
The conductor tube（1）Both ends pass through conductor adapting piece respectively（2）With the cable（3）It is in parallel.
8. the device according to claim 7 for being used to improve current-carrying capacity of cable, which is characterized in that
The conductor adapting piece（2）Cut cable be connected to the cable（3）Cable metal sheath（33）Or armor.
9. the device according to any one of claims 1 to 6 for being used to improve current-carrying capacity of cable, which is characterized in that
The flow channel（11）The streaming flow of receiving is circulated for preset temperature and with scheduled rate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711364659.5A CN108152621B (en) | 2017-12-18 | 2017-12-18 | Device for improving current-carrying capacity of cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711364659.5A CN108152621B (en) | 2017-12-18 | 2017-12-18 | Device for improving current-carrying capacity of cable |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108152621A true CN108152621A (en) | 2018-06-12 |
| CN108152621B CN108152621B (en) | 2020-05-19 |
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ID=62466283
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711364659.5A Active CN108152621B (en) | 2017-12-18 | 2017-12-18 | Device for improving current-carrying capacity of cable |
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| Country | Link |
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| CN (1) | CN108152621B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2762295Y (en) * | 2004-08-17 | 2006-03-01 | 毕耜超 | Cable with aluminium alloy water pipe for cooling |
| CN201281978Y (en) * | 2008-09-16 | 2009-07-29 | 江苏海达电缆有限公司 | Power cable |
| CN101504873A (en) * | 2007-08-09 | 2009-08-12 | 罗志昭 | Multi-splitting bus |
| CN102280193A (en) * | 2011-08-16 | 2011-12-14 | 安徽滨江电缆股份有限公司 | Cable with high current-carrying capacity |
| CN102354548A (en) * | 2011-10-19 | 2012-02-15 | 刘理文 | Highly conductive cable with improved conductor structure and manufacturing method thereof |
-
2017
- 2017-12-18 CN CN201711364659.5A patent/CN108152621B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2762295Y (en) * | 2004-08-17 | 2006-03-01 | 毕耜超 | Cable with aluminium alloy water pipe for cooling |
| CN101504873A (en) * | 2007-08-09 | 2009-08-12 | 罗志昭 | Multi-splitting bus |
| CN201281978Y (en) * | 2008-09-16 | 2009-07-29 | 江苏海达电缆有限公司 | Power cable |
| CN102280193A (en) * | 2011-08-16 | 2011-12-14 | 安徽滨江电缆股份有限公司 | Cable with high current-carrying capacity |
| CN102354548A (en) * | 2011-10-19 | 2012-02-15 | 刘理文 | Highly conductive cable with improved conductor structure and manufacturing method thereof |
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| Publication number | Publication date |
|---|---|
| CN108152621B (en) | 2020-05-19 |
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Address after: 100192 Beijing city Haidian District Qinghe small Camp Road No. 15 Applicant after: China Electric Science Research Institute Co., Ltd. Applicant after: State Grid Corporation of China Applicant after: Zhejiang Electric Power Co., Ltd. Address before: 100192 Beijing city Haidian District Qinghe small Camp Road No. 15 Applicant before: China Electric Science Research Institute Co., Ltd. Applicant before: State Grid Corporation of China Applicant before: State Grid Zhejiang Electric Power Company |
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