CN117373739B - High-flexibility cable for wind power generation - Google Patents
High-flexibility cable for wind power generation Download PDFInfo
- Publication number
- CN117373739B CN117373739B CN202311656731.7A CN202311656731A CN117373739B CN 117373739 B CN117373739 B CN 117373739B CN 202311656731 A CN202311656731 A CN 202311656731A CN 117373739 B CN117373739 B CN 117373739B
- Authority
- CN
- China
- Prior art keywords
- cable
- wind power
- power generation
- detection device
- fixing clip
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 238000010248 power generation Methods 0.000 title claims abstract description 24
- 238000001514 detection method Methods 0.000 claims abstract description 49
- 239000000843 powder Substances 0.000 claims abstract description 27
- 239000011241 protective layer Substances 0.000 claims abstract description 9
- 238000010438 heat treatment Methods 0.000 claims abstract description 4
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical group [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 claims description 34
- 239000010410 layer Substances 0.000 claims description 22
- 229910000030 sodium bicarbonate Inorganic materials 0.000 claims description 17
- 235000017557 sodium bicarbonate Nutrition 0.000 claims description 17
- 238000000197 pyrolysis Methods 0.000 claims description 10
- 239000002390 adhesive tape Substances 0.000 claims description 6
- 238000005192 partition Methods 0.000 claims description 6
- 238000000034 method Methods 0.000 abstract description 5
- 238000013021 overheating Methods 0.000 abstract description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 16
- 239000001569 carbon dioxide Substances 0.000 description 8
- 229910002092 carbon dioxide Inorganic materials 0.000 description 8
- 230000004308 accommodation Effects 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 3
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- UIIMBOGNXHQVGW-DEQYMQKBSA-M Sodium bicarbonate-14C Chemical compound [Na+].O[14C]([O-])=O UIIMBOGNXHQVGW-DEQYMQKBSA-M 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- JYYOBHFYCIDXHH-UHFFFAOYSA-N carbonic acid;hydrate Chemical compound O.OC(O)=O JYYOBHFYCIDXHH-UHFFFAOYSA-N 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- 238000005979 thermal decomposition reaction Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 229910001868 water Inorganic materials 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/32—Insulated conductors or cables characterised by their form with arrangements for indicating defects, e.g. breaks or leaks
- H01B7/324—Insulated conductors or cables characterised by their form with arrangements for indicating defects, e.g. breaks or leaks comprising temperature sensing means
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K11/00—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00
- G01K11/003—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00 using absorption or generation of gas, e.g. hydrogen
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/32—Insulated conductors or cables characterised by their form with arrangements for indicating defects, e.g. breaks or leaks
- H01B7/326—Insulated conductors or cables characterised by their form with arrangements for indicating defects, e.g. breaks or leaks comprising pressure sensing means
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B9/00—Power cables
- H01B9/02—Power cables with screens or conductive layers, e.g. for avoiding large potential gradients
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Locating Faults (AREA)
Abstract
The invention relates to a high-flexibility cable for wind power generation, comprising: the cable comprises an elastic outer protective layer, wherein a plurality of storage spaces are formed in the outer protective layer along the length direction of the cable, and powder capable of generating gas after being heated and decomposed is filled in the storage spaces; the overheat detection device is fixedly arranged on the outer side of the cable and comprises a pressure detector, gas generated by heating powder can enter the overheat detection device to strengthen the pressure intensity in the overheat detection device, and the pressure detector can detect the pressure intensity in the overheat detection device; the pressure detector is electrically connected with the detection system in a wired and/or wireless mode. The invention mainly aims to provide a high-flexibility cable for wind power generation, which enables operators to find out overheating of the cable in time in the use process, thereby avoiding serious consequences.
Description
Technical Field
The invention relates to a cable, in particular to a high-flexibility cable for wind power generation.
Background
Cables used in wind power generation systems are often required to have high flexibility to accommodate the operating and changing environment of the wind turbine, and thus, this type of cable is often referred to as a wind power dedicated cable or wind power cable. The materials and design of the high-flexibility cables for wind power generation will vary depending on the specific wind power generation system requirements and environmental conditions.
In the use process of the high-flexibility cable for wind power generation, the cable may be overheated due to overload, cable damage, overlong running time, overhigh environmental temperature and other reasons, so that fire risks, equipment faults and the like are caused. Thus, if the cable overheat is not found and solved in time, serious consequences will occur.
Disclosure of Invention
The invention mainly aims to provide a high-flexibility cable for wind power generation, which enables operators to find out overheating of the cable in time in the use process, thereby avoiding serious consequences.
In order to accomplish the above object, the present invention provides a high-flexibility cable for wind power generation, comprising:
the cable comprises an elastic outer protective layer, wherein a plurality of storage spaces are formed in the outer protective layer along the length direction of the cable, and powder capable of generating gas after being heated and decomposed is filled in the storage spaces;
the overheat detection device is fixedly arranged on the outer side of the cable and comprises a pressure detector, gas generated by heating powder can enter the overheat detection device to strengthen the pressure intensity in the overheat detection device, and the pressure detector can detect the pressure intensity in the overheat detection device;
the pressure detector is electrically connected with the detection system in a wired and/or wireless mode.
Preferably, the powder is sodium bicarbonate powder.
It is further preferred that the pyrolysis temperature of the sodium bicarbonate powder is 50-100 degrees.
Preferably, the overheat detection device further comprises a fixing clamp and a mounting seat, wherein the fixing clamp is used for fixing and clamping the outer side of the cable, the mounting seat and the fixing clamp are integrally manufactured, the pressure detector is mounted on the mounting seat, and gas can enter the mounting seat.
Further preferably, the fixing clamp comprises a left fixing clamp and a right fixing clamp, the left fixing clamp and the right fixing clamp are semi-circular, the mounting seat and the left fixing clamp are integrally formed, and the left fixing clamp and the right fixing clamp are fixedly connected through bolts.
Still further preferably, the mounting seat comprises a first accommodating space and a second accommodating space, the first accommodating space and the second accommodating space are separated by a partition plate, the first accommodating space is used for accommodating the pressure detector, the second accommodating space is used for bearing the gas, and the detection head of the pressure detector penetrates through the partition plate and then stretches into the second accommodating space.
Still further preferably, the bottom of mount pad is equipped with the drainage tube, and the head of drainage tube is sharp, and the head of drainage tube can pierce storage space, and the other end and the second accommodation space intercommunication of drainage tube.
Still further preferably, a cover plate is detachably mounted on the top of the mounting seat, a through hole is formed in the cover plate, and a wireless or wired signal transmitting device of the pressure detector transmits outwards through the through hole.
Still further preferably, the cable further comprises a wire core, an insulating layer wrapped around the wire core, a shielding layer wrapped around the insulating layer, a filling layer, an inner liner layer and an armor layer.
Still more preferably, an electrical adhesive tape is further provided between the outer sheath and the overheat detection device.
The invention has the beneficial effects that:
according to the invention, the storage space is arranged in the outer protective layer of the cable so as to store the pyrolyzable powder in the storage space, and meanwhile, the overheat detection device is arranged outside the outer protective layer of the cable, so that after the cable is overheated, gas is generated after the powder is pyrolyzed, the generated gas enters the overheat detection device, the pressure in the overheat detection device is enhanced, and after the pressure reaches a certain threshold value, the pressure is detected by the pressure detector in the overheat detection device, so that the pressure detector transmits a signal to the detection system, an operator can timely know the information of the overheat detection device according to the detection system, and thus the overheat phenomenon of the cable is timely found, and measures are timely taken to solve.
Drawings
The invention will be described in further detail with reference to the drawings and the detailed description.
FIG. 1 is a schematic view of a high-flexibility cable for wind power generation according to the present invention;
fig. 2 is a cross-sectional view of the overheat detection device of the high-flexibility cable for wind power generation according to the present invention.
Description of the reference numerals
10. Electrician adhesive tape;
100. a cable;
110. a wire core; 120. an insulating layer; 130. a shielding layer; 140. a filling layer;
150. an inner liner layer; 160. an armor layer; 170. an outer protective layer; 171. a storage space;
200. overheat detection means;
210. a left fixing clip; 220. a right fixing clip; 230. a mounting base;
231. a first accommodation space; 232. a second accommodation space; 233. a drainage tube;
240. a bolt; 250. a pressure detector; 260. and a cover plate.
Detailed Description
The technical solutions in the embodiments of the present invention are clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways other than those described herein, and persons skilled in the art will readily appreciate that the present invention is not limited to the specific embodiments disclosed below.
As shown in fig. 1, the present embodiment provides a high-flexibility cable 100 for wind power generation, which includes an outer sheath 170 having elasticity, a core 110, an insulating layer 120 wrapped around the core 110, a shielding layer 130 wrapped around the insulating layer 120, a filling layer 140, an inner liner 150, an armor layer 160, and an overheat detection device 200.
In this embodiment, in order to timely detect the overheated portion of the cable 100, a plurality of storage spaces 171 are provided inside the outer sheath 170 of the cable 100 along the length direction of the cable 100, and the storage spaces 171 are filled with powder capable of generating gas after thermal decomposition. Preferably, in this embodiment, sodium bicarbonate powder, i.e. common baking soda, is used as the powder. The pyrolysis temperature of sodium bicarbonate is between 50 and 100 ℃, so that sodium bicarbonate powder with different pyrolysis temperatures can be selected according to environmental requirements (the pyrolysis temperature of sodium bicarbonate powder is different according to the purity of sodium bicarbonate, and the pyrolysis temperature is also different). After pyrolysis of sodium bicarbonate powder, carbon dioxide, water and sodium carbonate are produced, which does not affect the cable 100 itself, and at the same time, the pyrolyzed product is also a non-flammable combustion-supporting product, so the sodium bicarbonate powder is used in this example. In addition, the sodium bicarbonate powder is adopted in the embodiment, and the higher the temperature is, the faster the pyrolysis speed is, and the more carbon dioxide gas is generated, while the sodium bicarbonate powder is not decomposed below the pyrolysis temperature.
In this embodiment, as shown in fig. 2, the overheat detection device 200 is fixedly installed at the outside of the outer sheath 170 of the cable 100. The overheat detection device 200 includes a pressure detector 250, a fixing clip, and a mount 230. Wherein, the fixation clamp is used for fixed centre gripping in the cable 100 outside, and mount pad 230 and the integrative preparation of fixation clamp, pressure detector 250 install on mount pad 230, and the carbon dioxide gas that produces after the sodium bicarbonate powder pyrolysis can get into in the mount pad 230.
In this embodiment, the fixing clip includes a left fixing clip 210 and a right fixing clip 220, the left fixing clip 210 and the right fixing clip 220 are all semicircular, the mounting seat 230 and the left fixing clip 210 are integrally formed, and the left fixing clip 210 and the right fixing clip 220 are fixedly connected through a bolt 240. The mounting seat 230 comprises a first accommodating space 231 and a second accommodating space 232, the first accommodating space 231 and the second accommodating space 232 are separated by a partition board, the first accommodating space 231 is used for accommodating the pressure detector 250, the second accommodating space 232 is used for bearing gas, and a detection head of the pressure detector 250 penetrates through the partition board and then stretches into the second accommodating space 232. The carbon dioxide gas generated by heating the sodium bicarbonate powder can enter the second accommodating space 232, so that the internal pressure of the second accommodating space 232 is enhanced, and the pressure detector 250 can be used for detecting the internal pressure of the second accommodating space 232. Preferably, a drain tube 233 is provided at the bottom of the mounting seat 230, and the head of the drain tube 233 is pointed, so that the outer sheath 170 of the cable 100 is pierced by the drain tube 233 during the installation of the overheat detection device 200, so that the head of the drain tube 233 pierces the storage space 171, and carbon dioxide gas generated in the storage space 171 is introduced into the second accommodating space 232.
In this embodiment, a cover plate 260 is detachably mounted on the top of the mounting seat 230, and a through hole is formed in the cover plate 260, so that the wireless or wired signal transmitting device of the pressure detector 250 is transmitted outwards through the through hole.
The specific working method of the embodiment is as follows:
after the cable 100 is laid, the overheat detection device 200 is installed in the storage space of the cable 100 (the storage space 171 is provided with marks, and the operator may install the overheat detection device according to the marks). In the process of installing the overheat detection device 200, it is necessary to pierce the skin of the outer sheath 170 by the drain tube 233 under the mount 230 and then insert it into the storage space 171, so that carbon dioxide generated from sodium bicarbonate powder is introduced into the overheat detection device 200 as a current. In addition, it is necessary to wrap a round of the electrical adhesive tape 10 around the outer sheath 170 in advance before installing the overheat detection device 200, and the sealability between the overheat detection device 200 and the outer sheath 170 is ensured by the characteristics of the electrical adhesive tape 10. After the overheat detection device 200 is mounted, both sides of the overheat detection device 200 may be sealed again using the electrical adhesive tape 10.
When the cable 100 is overheated, the sodium bicarbonate powder stored in the storage space 171 is heated to decompose, so as to generate carbon dioxide gas, and the carbon dioxide gas enters the second accommodating space 232 through the drainage tube 233, so as to enhance the pressure in the second accommodating space 232, after reaching a preset pressure threshold value, the pressure detector 250 detects the pressure, and the pressure detector 250 sends a signal to the detection system, so that the detection system timely senses the change, and then an operator timely knows that the cable 100 positioned at the position of the pressure detector 250 is overheated according to the alarm system of the detection system, so that the operator timely takes measures.
In this embodiment, when the cable 100 is buried underground, the pressure detector 250 may first send the signal by way of a wired connection to a wireless transmitter buried at the surface, which in turn forwards the signal into the detection system. Alternatively, the pressure detector 250 may be electrically connected to the detection system directly via a wired connection.
When the cable 100 is installed on the ground or in a low altitude, the pressure detector 250 may be directly connected to the detection system in a wireless or wired manner.
It will be apparent that the described embodiments are only some, but not all, embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Claims (10)
1. A high-flexibility cable for wind power generation, comprising:
the cable comprises an elastic outer protective layer, wherein a plurality of storage spaces are formed in the outer protective layer along the length direction of the cable, and powder capable of generating gas after being heated and decomposed is filled in the storage spaces;
the overheat detection device is fixedly arranged on the outer side of the cable and comprises a pressure detector, gas generated by heating of the powder can enter the overheat detection device to strengthen the pressure inside the overheat detection device, and the pressure detector can detect the pressure inside the overheat detection device;
and the pressure detector is electrically connected with the detection system in a wired and/or wireless mode.
2. A high flexible cable for wind power generation according to claim 1, wherein said powder is sodium bicarbonate powder.
3. A high flexible cable for wind power generation according to claim 2, wherein said sodium bicarbonate powder has a pyrolysis temperature of 50-100 degrees.
4. The high-flexibility cable for wind power generation according to claim 1, wherein the overheat detection device further comprises a fixing clip and a mounting base, the fixing clip is used for fixing and clamping on the outer side of the cable, the mounting base and the fixing clip are integrally manufactured, the pressure detector is mounted on the mounting base, and the gas can enter the mounting base.
5. The high-flexibility cable for wind power generation according to claim 4, wherein the fixing clip comprises a left fixing clip and a right fixing clip, the left fixing clip and the right fixing clip are semi-circular, the mounting seat and the left fixing clip are integrally formed, and the left fixing clip and the right fixing clip are fixedly connected through bolts.
6. The high-flexibility cable for wind power generation according to claim 5, wherein the mounting seat comprises a first accommodating space and a second accommodating space, the first accommodating space is separated from the second accommodating space by a partition plate, the first accommodating space is used for accommodating the pressure detector, the second accommodating space is used for bearing gas, and a detection head of the pressure detector penetrates through the partition plate and then stretches into the second accommodating space.
7. The high-flexibility cable for wind power generation according to claim 6, wherein a drainage tube is arranged at the bottom of the mounting seat, the head of the drainage tube is pointed, the head of the drainage tube can penetrate into the storage space, and the other end of the drainage tube is communicated with the second accommodating space.
8. The high-flexibility cable for wind power generation according to claim 7, wherein a cover plate is detachably mounted on the top of the mounting seat, a through hole is formed in the cover plate, and the wireless or wired signal transmitting device of the pressure detector transmits outwards through the through hole.
9. A high flexible cable for wind power generation according to any of claims 1-8, wherein the cable further comprises a wire core, an insulating layer surrounding the wire core, a shielding layer surrounding the insulating layer, a filling layer, an inner liner layer and an armor layer.
10. The high-flexibility cable for wind power generation according to claim 9, wherein an electrical adhesive tape is further provided between the outer sheath and the overheat detection device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311656731.7A CN117373739B (en) | 2023-12-06 | 2023-12-06 | High-flexibility cable for wind power generation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311656731.7A CN117373739B (en) | 2023-12-06 | 2023-12-06 | High-flexibility cable for wind power generation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN117373739A CN117373739A (en) | 2024-01-09 |
| CN117373739B true CN117373739B (en) | 2024-03-22 |
Family
ID=89406192
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311656731.7A Active CN117373739B (en) | 2023-12-06 | 2023-12-06 | High-flexibility cable for wind power generation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117373739B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4819250A (en) * | 1986-10-24 | 1989-04-04 | Les Cables De Lyon | Apparatus for measuring temperature at a hot point along an electrical energy transmission cable |
| CN206849571U (en) * | 2017-05-27 | 2018-01-05 | 董小琳 | A kind of automatic fire prevention cable |
| KR102553058B1 (en) * | 2022-10-20 | 2023-07-07 | 유한회사 아라콤 | electric vehicle charging cable overheating detection and alarm system |
| CN220065251U (en) * | 2023-06-06 | 2023-11-21 | 中能电科建设(广东)有限公司 | Cable structure with temperature change early warning function |
-
2023
- 2023-12-06 CN CN202311656731.7A patent/CN117373739B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4819250A (en) * | 1986-10-24 | 1989-04-04 | Les Cables De Lyon | Apparatus for measuring temperature at a hot point along an electrical energy transmission cable |
| CN206849571U (en) * | 2017-05-27 | 2018-01-05 | 董小琳 | A kind of automatic fire prevention cable |
| KR102553058B1 (en) * | 2022-10-20 | 2023-07-07 | 유한회사 아라콤 | electric vehicle charging cable overheating detection and alarm system |
| CN220065251U (en) * | 2023-06-06 | 2023-11-21 | 中能电科建设(广东)有限公司 | Cable structure with temperature change early warning function |
Also Published As
| Publication number | Publication date |
|---|---|
| CN117373739A (en) | 2024-01-09 |
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