CN210224825U - Cable water circulation forced cooling system adopting hose winding - Google Patents
Cable water circulation forced cooling system adopting hose winding Download PDFInfo
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- CN210224825U CN210224825U CN201920832649.8U CN201920832649U CN210224825U CN 210224825 U CN210224825 U CN 210224825U CN 201920832649 U CN201920832649 U CN 201920832649U CN 210224825 U CN210224825 U CN 210224825U
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Abstract
The utility model discloses an adopt winding cable hydrologic cycle forced cooling system of hose relates to electric power transmission technical field. The forced cooling of the local high temperature of the cable by water circulation is divided into direct cooling and indirect cooling, when the cable is directly cooled, the cable is directly immersed in water, heat is taken away by water circulation, and the sealing problem between the cable and a sleeve needs to be solved; the indirect cooling is that the cable is buried in the soil, and the cooled water pipe is buried in the soil near the cable, the low-temperature cooling water is introduced into the water pipe, and the heat dissipation effect is far inferior to that of the direct cooling because of the existence of the intermediate heat dissipation medium. The utility model discloses a cooling cycle device that hose and coupling hose exit on the cable are twined to the spiral mode, and the hose winding back periphery is equipped with heat preservation heat-proof device. The intermediate medium heat dissipation link is reduced, the cooling effect can be close to the direct cooling mode, the implementation difficulty is far lower than that of the direct cooling mode, and the service life of the cable conductor is prevented from being influenced by overhigh temperature.
Description
Technical Field
The utility model relates to an electric power transmission technical field especially relates to an adopt winding cable hydrologic cycle forced cooling system of hose.
Background
The rated ampacity of a power cable is determined by the maximum allowable operating temperature of the cable insulation, i.e. by the maximum allowable temperature of the outer surface of the cable core. When the cable works, the temperature of the upper surface of the wire core of the cable body is closely related to the magnitude of load current carried by the cable, and is also related to the transverse heat transfer characteristic in the cable and the ambient temperature when the cable runs. Both land cables and submarine cables have areas with a harsh heat dissipation environment, resulting in limited transmission capacity of the entire cable run. For example, the buried depth of the land cable trenchless jacking pipe laying section is large, and when a multi-loop cable is laid in the same drilling hole at the same time, the pipes in the drilling hole are tightly attached together, so that the heat dissipation is poor; the submarine cable landing section can be exposed to sunlight for a long time or buried in soil which is not easy to dissipate heat, and the heat dissipation environment is far inferior to that of the submarine section.
In order to improve the conveying capacity of the bottleneck section of the power cable, foreign projects have engineering cases adopting water circulation forced cooling measures. Water circulation cooling can also be divided into direct cooling and indirect cooling according to the cooling mode: direct cooling means that a cooling medium is in direct contact with a cable sheath or an insulation barrier, a cable is generally placed in a sleeve, cooling water is introduced into the sleeve, the cable is directly immersed in the water, and heat is taken away through water circulation; the indirect cooling is a cooling mode that the heat generated by the cable is transmitted to a cooling medium after passing through some heat-transfer intermediate medium, namely, the cable is buried in the soil, a cooled water pipe is buried in the soil near the cable, and the water pipe is filled with low-temperature cooling water.
The direct cooling mode needs to solve the sealing problem between the cable and the sleeve, has higher requirement on the water resistance of the cable, is generally suitable for submarine cable lines with high capacity and better water resistance, has higher implementation difficulty and is greatly limited in engineering application. Therefore, in most practical projects, an indirect cooling method which is easy to realize is adopted, but the method has far lower heat dissipation effect than direct cooling due to the existence of an intermediate heat dissipation medium.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model and the technical task who provides are perfect and improve prior art scheme, provide an adopt the winding cable hydrologic cycle forced cooling system of hose to reduce the intermediate medium heat dissipation link, improve the cooling effect, avoid bottleneck section cable conductor high temperature to influence life as the purpose. Therefore, the utility model adopts the following technical scheme.
The cable water circulation forced cooling system wound by the hose comprises the hose and a cooling circulation device, wherein the hose is wound on a cable in a spiral mode, and two ends of the hose are respectively connected to a water inlet and a water outlet of the cooling circulation device. Compared with the traditional indirect cooling mode, the cooling device has the advantages that the cable is cooled in a hose winding mode, the intermediate medium heat dissipation link is reduced, the cooling effect can be theoretically equal to that of the direct cooling mode, the implementation difficulty is far lower than that of the direct cooling mode, heat generated in the running process of the cable is taken away through the water circulation forced cooling means of the cooling circulation device, the running cable is kept at a lower environment temperature for a long time, and the service life of the cable conductor is prevented from being influenced by overhigh temperature.
As a preferable technical means: after the cable is wound on the hose, a heat preservation and insulation device is arranged on the periphery of the wound hose. Through set up heat preservation device in hose periphery, can realize thermal-insulated better, can effectively reduce outside high temperature heat conduction in.
As a preferable technical means: when the flexible pipe is wound on the cable, adjacent turns of the flexible pipe are tightly attached without gaps. Maximum cooling contact to the cable is achieved and the best cooling heat exchange is achieved.
As a preferable technical means: the heat preservation device adopts a non-metal heat preservation material. The heat preservation device can not contain a metal material, so that the circulation generated after the conductor is electrified is avoided, and the non-metal heat preservation material can be a high polymer material with heat preservation effect, such as plastic foam and the like.
As a preferable technical means: the cooling circulation device is a refrigeratable cooling circulation device and can realize the control of the temperature and the flow of the system water outlet. The temperature stability of cooling water can be effectively guaranteed, the device is universal in use, and cooling and flow control effects are good.
Has the advantages that: compared with the traditional indirect cooling mode, the cooling device has the advantages that the cable is cooled in a hose winding mode, the intermediate medium heat dissipation link is reduced, the cooling effect can be theoretically equal to that of the direct cooling mode, the implementation difficulty is far lower than that of the direct cooling mode, heat generated in the running process of the cable is taken away through the water circulation forced cooling means of the cooling circulation device, the running cable is kept at a lower environment temperature for a long time, and the service life of the cable conductor is prevented from being influenced by overhigh temperature.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
In the figure: 1-a hose; 2-a cooling circulation device; 3-a cable; 4-heat preservation and insulation device.
Detailed Description
The technical solution of the present invention will be further described in detail with reference to the accompanying drawings.
As shown in fig. 1, a cable water circulation forced cooling system wound by a hose comprises a hose 1 and a cooling circulation device 2, wherein the hose 1 is wound on a cable 3 in a spiral manner, and two ends of the hose 1 are respectively connected to a water inlet and a water outlet of the cooling circulation device 2; the water outlet of the cooling circulation device 2 generates circulating cooling water with adjustable temperature and flow and leads the circulating cooling water into a soft cooling pipe, the whole section of the cable 3 at the cooling section is covered by the soft cooling pipe (hose) and is in close contact with the soft cooling pipe (hose), heat generated by applying current to the cable 3 is taken away by the circulating water and finally flows back to the reflux port of the cooling circulation device 2 for cooling again, and a closed water circulation loop is formed.
In order to prevent external heat from being transmitted to reduce the cooling effect, the cable 3 is provided with a thermal insulation device 4 at the periphery of the winding hose 1 after the winding hose 1 is wound. Through set up heat preservation device in hose 1 periphery, can realize thermal-insulated better, can effectively reduce outside high temperature heat conduction in, promote the cooling effect.
For best cooling heat exchange, the adjacent turns of the hose 1 are closely gapless when the hose 1 is wrapped around the cable 3. Maximum cooling contact to the cable 3 is achieved and the best cooling heat exchange is achieved.
In order to ensure the heat preservation effect and simultaneously not generate new heat, the heat preservation device adopts non-metal heat preservation materials. The heat-insulating device does not contain metal materials, so that the circulation of the conductor generated after the current flows through the conductor is avoided, and the non-metal heat-insulating material can be a high-molecular material with heat-insulating effect, such as plastic foam and the like
In order to realize the control of the cooling temperature and the flow rate, the cooling circulation device 2 is a refrigeratable cooling circulation device and can realize the control of the temperature and the flow rate of the system outlet water. The temperature stability of cooling water can be effectively guaranteed, the device is universal in use, and cooling temperature and flow control effects are good.
In this example, the material of the hose 1 has the following characteristics: 1 has better mechanical property, ensures that the hose 1 can be wound on the cable 3, realizes the full coverage of the cable 3 as far as possible, and can bear the internal water pressure under the maximum water flow; 2 has lower thermal resistivity, ensures that the heat generated by the cable 3 can be taken away by cooling water in time, and leads the cooling effect to be as close to a direct cooling mode as possible.
The non-metal heat-insulating material in the embodiment can also adopt various heat-insulating materials, and the materials need to have higher thermal resistivity, isolate the influence of the external environment on the cooling effect and reduce the loss of cold energy; 2, the coating has better anti-corrosion property, can bear the long-term corrosion of soil or air, and can ensure long-term operation and use; 3 has better mechanical property, can meet the construction requirement and simultaneously protects the soft water pipe from being damaged by machinery.
The above cable water circulation forced cooling system using hose winding shown in fig. 1 is a specific embodiment of the present invention, and embodies the outstanding substantial features and significant advances of the present invention, and can perform equivalent modifications in the aspects of shape, structure, etc. according to the actual use needs, all within the protection scope of the present solution.
Claims (5)
1. The utility model provides an adopt cable water circulation forced cooling system of hose winding which characterized in that: the cooling circulation device comprises a hose (1) and a cooling circulation device (2), wherein the hose (1) is wound on a cable (3) in a spiral mode, and two ends of the hose (1) are respectively connected to a water inlet and a water outlet of the cooling circulation device (2).
2. The water circulation forced cooling system for the cable wound by the hose as claimed in claim 1, wherein: after the cable (3) is wound on the hose (1), a heat preservation and insulation device (4) is arranged on the periphery of the wound hose (1).
3. The water circulation forced cooling system for the cable wound by the hose as claimed in claim 2, wherein: when the flexible pipe (1) is wound on the cable (3), adjacent turns of the flexible pipe (1) are tightly attached without gaps.
4. The water circulation forced cooling system for the cable wound by the hose as claimed in claim 3, wherein: the heat preservation and insulation device (4) is made of non-metal heat preservation materials.
5. The water circulation forced cooling system for the cable wound by the hose as claimed in claim 4, wherein: the cooling circulation device (2) is a refrigeratable cooling circulation device and can realize the control of the temperature and the flow of the system outlet water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920832649.8U CN210224825U (en) | 2019-06-04 | 2019-06-04 | Cable water circulation forced cooling system adopting hose winding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920832649.8U CN210224825U (en) | 2019-06-04 | 2019-06-04 | Cable water circulation forced cooling system adopting hose winding |
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| Publication Number | Publication Date |
|---|---|
| CN210224825U true CN210224825U (en) | 2020-03-31 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920832649.8U Active CN210224825U (en) | 2019-06-04 | 2019-06-04 | Cable water circulation forced cooling system adopting hose winding |
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| CN (1) | CN210224825U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110265938A (en) * | 2019-06-04 | 2019-09-20 | 国网浙江省电力有限公司 | It is a kind of to use soft tube winding and the hydronic cable transfer capability improving system of water |
| CN112909858A (en) * | 2021-01-22 | 2021-06-04 | 武汉船用机械有限责任公司 | Cable trough |
-
2019
- 2019-06-04 CN CN201920832649.8U patent/CN210224825U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110265938A (en) * | 2019-06-04 | 2019-09-20 | 国网浙江省电力有限公司 | It is a kind of to use soft tube winding and the hydronic cable transfer capability improving system of water |
| CN112909858A (en) * | 2021-01-22 | 2021-06-04 | 武汉船用机械有限责任公司 | Cable trough |
| CN112909858B (en) * | 2021-01-22 | 2022-11-29 | 武汉船用机械有限责任公司 | Cable trough |
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