Fast assembly device for cooling welding part of high-voltage cable conductor

Abstract

The utility model provides the fast-assembly device for cooling the welding part of the high-voltage cable conductor, which is simple in structure, high in heat dissipation efficiency, safe and reliable. The cooling device comprises an upper cooling module and a lower cooling module which are matched with each other, a conductor wire passing hole is formed in the middle of a matching body of the upper cooling module and the lower cooling module, and the diameter of the conductor wire passing hole is smaller than that of a conductor to be cooled. Circulating liquid cooling channels which are mutually communicated in a sealed mode are arranged in the matching body of the upper cooling module and the lower cooling module and surround the periphery of the conductor wire passing hole, a first external liquid cooling opening is formed in the upper cooling module, and a second external liquid cooling opening is formed in the lower cooling module. The first external liquid cooling port and the second external liquid cooling port are both communicated with the circulating liquid cooling channel, a first radiating fin group is arranged on the upper cooling module, and a second radiating fin group is arranged on the lower cooling module. The utility model can be used in the technical field of high-voltage power equipment.

Description

Technical Field

[0001] The utility model relates to the technical field of high-voltage electric power equipment, in particular to a quick-installation device for cooling a welding part of a high-voltage cable conductor. Background Art

[0002] The connection of high-voltage power cable conductors is generally carried out by crimping or welding. Conductor welding is widely used in the high-voltage power cable joint installation industry because of its low resistance, high mechanical strength and the advantages of equal diameter connection with the cable body. Since the high temperature of about 800℃ to 1000℃ is generated when the conductor is welded, if the conductor is not cooled, the cable insulation layer, the key structure of the cable wrapped outside the conductor on both sides and close to the welding part, will be burned, which will cause serious damage to the safe operation of the high-voltage power cable. Even if the insulation layer is re-protected later, this method will still have certain safety hazards after a long time, and it will also require greater material and labor costs. Therefore, when welding the conductor, necessary cooling measures must be taken. For cable conductors with small square cross-sections, there is generally no special cooling device to cool them. Usually, a high-power blower is used, that is, the high-temperature conductor is cooled by air cooling. For cable conductors with large square cross-sections, since more welding raw materials are used, their instantaneous temperature is higher and the heating time is longer. Usually, a special cooling device with an embedded channel is used to inject circulating water into the channel, that is, the high-temperature conductor is cooled by water cooling.

[0003] For the air cooling technology used for cable conductors with small square cross-sections, since the welding raw materials are in powder form, in order to prevent the materials from blowing away, it is generally necessary to wait for the materials to undergo a chemical reaction before starting the blower to cool the conductors. If the construction personnel start the blower too quickly, it is easy to cause the reacting materials to splash and burn personnel and cables. If the construction personnel start the blower too slowly, the heat dissipation is not timely and it is also easy to burn the cable insulation layer. Therefore, for the welding of conductors with small square cross-sections, more and more water cooling is recommended to cool them. However, due to the complex installation and long installation time of the current water cooling device, air cooling is still used for cooling at the construction site. Most of the current water cooling devices adopt a Haversian structure and are connected by bolts at both ends. Since the size of the structure clamped on the conductor must be smaller than the conductor, it can be close to the conductor to maintain a higher thermal conductivity. Therefore, in the process of tightening the bolts at both ends, two people need to cooperate to tighten them at the same time, or one person needs to tighten them back and forth step by step. Otherwise, it is easy to cause unbalanced force, resulting in one side not being close to the conductor or crushing the conductor, and then combined into a combined cooling plate that can be clamped on the cable conductor. Since the channels for the internal circulating water are not connected, water pipes are needed to connect the internal channels. Since both ends of the conductor need to be cooled, two combined cooling plates are required to be used together. The combined cooling plates also need to be connected by water pipes, and the installation process is relatively cumbersome. In addition, a large number of water pipes are used, which increases the probability of water leakage. If they accidentally enter the conductor, it will threaten the welding quality of the conductor. In order to ensure the cooling effect, a blower is usually used to blow air to cool the combined cooling plate synchronously during the water cooling process. Since the heat dissipation area affects the heat dissipation efficiency, and the surface area of ​​the combined cooling plate is small, the auxiliary air cooling effect is small.

[0004] The current cooling technology is complex to operate. The power industry is related to people's livelihood, and on-site construction needs to ensure high quality and efficiency. Therefore, there is an urgent need for a quick-install device that can be used to cool the welding part of high-voltage cable conductors. Utility Model Content

[0005] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a quick-installation device for cooling the welding part of a high-voltage cable conductor, which has a simple structure, high heat dissipation efficiency and is safe and reliable.

[0006] The technical solution adopted by the utility model is a quick-install device for cooling the welding part of a high-voltage cable conductor, comprising an upper cooling module and a cooling module, a conductor wire hole is formed in the middle of a matching body after the upper cooling module and the cooling module are matched, the upper cooling module and the cooling module are matched with each other in a magnetic attraction manner through a plurality of strong magnets symmetrically arranged on the upper cooling module and the cooling module, the diameter of the conductor wire hole is smaller than the diameter of the conductor to be cooled, a circulating liquid cooling channel sealed and connected between the upper cooling module and the cooling module is arranged inside the matching body after the upper cooling module and the cooling module are matched and around the outer periphery of the conductor wire hole, a first external liquid cooling port is arranged on the upper cooling module, and a second external liquid cooling port is arranged on the cooling module, the first external liquid cooling port and the second external liquid cooling port are both connected to the circulating liquid cooling channel, a first heat dissipation fin group is arranged on the upper cooling module, and a second heat dissipation fin group is arranged on the cooling module.

[0007] As can be seen from the above scheme, the upper cooling module and the cooling module cooperate with each other by magnetic attraction, which simplifies the original structure of bolt locking, making the structure simpler and making the assembly and disassembly of the upper cooling module and the cooling module more convenient; the diameter of the conductor wire hole is smaller than the diameter of the conductor to be cooled. Since the conductor is formed by twisting multiple strands of wire, even if the diameter of the conductor wire hole is slightly smaller than the diameter of the conductor to be cooled, when the device is clamped on the conductor, the conductor to be cooled can always be close to the wall surface of the conductor wire hole, thereby ensuring its cooling effect and heat dissipation efficiency; a circulating liquid cooling channel that is sealed and connected to each other between the upper cooling module and the cooling module is arranged inside the matching body after the upper cooling module and the cooling module are matched and around the outer periphery of the conductor wire hole; a first external liquid cooling port is arranged on the upper cooling module, and a second external liquid cooling port is arranged on the cooling module. The first external liquid cooling port The liquid cooling port and the second external liquid cooling port are both connected to the circulating liquid cooling channel. The first external liquid cooling port and the second external liquid cooling port are connected to the circulating liquid cooling channel, one of the external liquid cooling ports is connected to the cooling liquid, and the other external liquid cooling port discharges the cooling liquid. The circulating liquid cooling channel is arranged around the outer periphery of the conductor through hole, so that the conductor to be cooled in the conductor through hole can be quickly cooled, which greatly improves the cooling effect; in addition, the circulating liquid cooling channel is sealed and connected, which avoids the danger of cooling liquid leaking onto the conductor and ensures the safety and reliability of the device; in addition, compared with the existing structure using multiple cooling water channels, the utility model adopts a structure of a circulating liquid cooling channel connecting the upper cooling module and the lower cooling module, which can simplify the structure of the water cooling channel, and also reduce the risk of water leakage in the cooling water channel, avoiding the impact on the insulation and performance of the conductor itself. In addition, the setting of the first heat dissipation fin group and the second heat dissipation fin group can quickly achieve air cooling, that is, compared with the existing cooling device, the utility model device can simultaneously achieve dual cooling of water cooling and air cooling, which greatly improves the heat dissipation efficiency.

[0008] Furthermore, the circulating liquid cooling channel is formed by the cooperation of the first liquid cooling channel arranged inside the upper cooling module and the second liquid cooling channel arranged inside the lower cooling module, the first liquid cooling channel is connected to the first external liquid cooling port, and the second liquid cooling channel is connected to the second external liquid cooling port. It can be seen that the circulating liquid cooling channel is formed by the cooperation of the first liquid cooling channel and the second liquid cooling channel, and the upper cooling module and the lower cooling module are quickly matched by magnetic attraction, that is, the first liquid cooling channel and the second liquid cooling channel can be quickly matched, so that rapid assembly and disassembly can be achieved, which is convenient for the installation and subsequent maintenance of the device.

[0009] Furthermore, a first liquid-cooling interface and a second liquid-cooling interface are respectively provided on the upper cooling module and located on both sides of the conductor through hole, and a third liquid-cooling interface and a fourth liquid-cooling interface are respectively provided on the cooling module and located on both sides of the conductor through hole, the protrusion of the third liquid-cooling interface is inserted into the first liquid-cooling interface and keeps sealed and conductive, and the protrusion of the fourth liquid-cooling interface is inserted into the second liquid-cooling interface and keeps sealed and conductive. It can be seen that by setting the protrusion of the third liquid-cooling interface and the protrusion of the fourth liquid-cooling interface, the sealing degree between the liquid-cooling interfaces can be effectively guaranteed, and the safety of the device during use can be guaranteed.

[0010] Furthermore, two first sealing rings are arranged on the protruding parts of the third liquid-cooling interface and the protruding parts of the fourth liquid-cooling interface, the outer diameter of the first sealing ring is larger than the inner diameter of the first liquid-cooling interface and the second liquid-cooling interface, and second sealing rings are arranged on the mating surfaces of the upper cooling module and the cooling module and on the periphery of the protruding parts of the third liquid-cooling interface and the protruding parts of the fourth liquid-cooling interface. It can be seen that the arrangement of the first sealing ring can achieve a good sealing effect and provide friction force, so that the upper cooling module and the cooling module can be more securely matched; and the arrangement of the second sealing ring ensures that no cooling liquid leakage occurs in the mating surfaces of the upper cooling module and the cooling module, thereby ensuring safety and reliability.

[0011] Furthermore, the upper cooling module and the lower cooling module are both made of copper. As can be seen, due to the high thermal conductivity and non-magnetic properties of copper, it can be installed quickly and accurately when used, reducing construction time, improving construction efficiency and quality, and can be quickly dismantled, solving the problem of cumbersome installation of existing cooling devices.

[0012] Furthermore, a first strong magnet and a second strong magnet are symmetrically arranged in the upper cooling module and near the mating surface that matches the cooling module, and a third strong magnet and a fourth strong magnet are symmetrically arranged in the cooling module and near the mating surface that matches the upper cooling module. The first strong magnet and the third strong magnet are arranged opposite to each other and magnetically attracted to each other, and the second strong magnet and the fourth strong magnet are arranged opposite to each other and magnetically attracted to each other. It can be seen that by arranging the first strong magnet, the second strong magnet, the third strong magnet and the fourth strong magnet, and utilizing the characteristic of opposite magnets attracting each other, the reliability of the coordination between the upper cooling module and the cooling module can be ensured.

[0013] Furthermore, a first conductor bayonet is provided on the upper cooling module and located in the middle of the mating surface that matches the cooling module, and a second conductor bayonet is provided on the cooling module and located in the middle of the mating surface that matches the upper cooling module, and the first conductor bayonet and the second conductor bayonet cooperate to form the conductor wire hole. It can be seen that the conductor wire hole is formed by using mutually cooperating structures, which can realize rapid conductor installation and facilitate the operation of the overall device.

[0014] Furthermore, two positioning grooves are provided on the upper cooling module and on the mating surface that matches the lower cooling module, and two positioning protrusions that match the two positioning grooves are provided on the lower cooling module and on the mating surface that matches the upper cooling module. It can be seen that the two positioning grooves are matched with the two positioning protrusions respectively, so that the upper cooling module and the lower cooling module can be quickly matched. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is the overall cross-sectional structural diagram of the utility model;

[0016] Figure 2 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 3 is a simplified structural schematic diagram of the upper cooling module;

[0018] Figure 4 is a simplified structural schematic diagram of the cooling module;

[0019] Figure 5 It is a display diagram of the application scenario of the utility model. DETAILED DESCRIPTION

[0020] like Figures 1 to 4As shown, the utility model is a quick-install device for cooling the welding part of high-voltage cable conductors, comprising an upper cooling module 1 and a cooling module 2, wherein a conductor through hole 3 is formed in the middle of the matching body after the upper cooling module 1 and the cooling module 2 are matched, and the upper cooling module 1 and the cooling module 2 are matched with each other in a magnetic attraction manner through a plurality of strong magnets symmetrically arranged on the upper cooling module 1 and the cooling module 2, and the diameter of the conductor through hole 3 is smaller than the diameter of the conductor to be cooled. A first conductor bayonet 19 is provided on the upper cooling module 1 and located in the middle of the matching surface matching with the cooling module 2, and a second conductor bayonet 20 is provided on the cooling module 2 and located in the middle of the matching surface matching with the upper cooling module 1, and the first conductor bayonet 19 and the second conductor bayonet 20 are matched to form the conductor through hole 3. A circulating liquid cooling channel which is sealed and connected between the upper cooling module 1 and the cooling module 2 is arranged inside the matched body after the upper cooling module 1 and the cooling module 2 are matched and around the outer periphery of the conductor through hole 3; a first external liquid cooling port 4 is arranged on the upper cooling module 1, and a second external liquid cooling port 5 is arranged on the cooling module 2; both the first external liquid cooling port 4 and the second external liquid cooling port 5 are connected to the circulating liquid cooling channel; a first heat dissipation fin group 6 is arranged on the upper cooling module 1, and a second heat dissipation fin group 7 is arranged on the cooling module 2.

[0021] The circulating liquid cooling channel is formed by a first liquid cooling channel 8 provided inside the upper cooling module 1 and a second liquid cooling channel 9 provided inside the cooling module 2. The first liquid cooling channel 8 is connected to the first external liquid cooling port 4, and the second liquid cooling channel 9 is connected to the second external liquid cooling port 5. A first liquid cooling docking port 10 and a second liquid cooling docking port 11 are provided on the upper cooling module 1 and on both sides of the conductor through hole 3, respectively. A third liquid cooling docking port 12 and a fourth liquid cooling docking port 13 are provided on the cooling module 2 and on both sides of the conductor through hole 3, respectively. The protrusion of the third liquid cooling docking port 12 is inserted into the first liquid cooling docking port 10 and keeps sealed and connected. The protrusion of the fourth liquid cooling docking port 13 is inserted into the second liquid cooling docking port 11 and keeps sealed and connected. Two first sealing rings 14 are arranged on the protruding portion of the third liquid-cooling docking port 12 and the protruding portion of the fourth liquid-cooling docking port 13, the outer diameter of the first sealing ring 14 is larger than the inner diameter of the first liquid-cooling docking port 10 and the second liquid-cooling docking port 11, and second sealing rings 24 are arranged on the mating surfaces of the upper cooling module 1 and the cooling module 2 and on the peripheries of the protruding portion of the third liquid-cooling docking port 12 and the protruding portion of the fourth liquid-cooling docking port 13.

[0022] The upper cooling module 1 and the cooling module 2 are both made of copper. A first strong magnet 15 and a second strong magnet 16 are symmetrically arranged in the upper cooling module 1 and near the mating surface that matches the cooling module 2, and a third strong magnet 17 and a fourth strong magnet 18 are symmetrically arranged in the cooling module 2 and near the mating surface that matches the upper cooling module 1. The first strong magnet 15 and the third strong magnet 17 are arranged opposite to each other and are magnetically attracted to each other, and the second strong magnet 16 and the fourth strong magnet 18 are arranged opposite to each other and are magnetically attracted to each other.

[0023] Two positioning grooves 21 are arranged on the upper cooling module 1 and on the matching surface with the cooling module 2 , and two positioning protrusions 22 matched with the two positioning grooves 21 are arranged on the cooling module 2 and on the matching surface with the upper cooling module 1 .

[0024] According to the requirements of the welding work, a corresponding number of quick-install devices for cooling the welding part of the high-voltage cable conductor are set. When two cable conductors need to be welded, two quick-install devices for cooling the welding part of the high-voltage cable conductor are required, such as Figure 5 shown.

[0025] The practical process of the utility model device is as follows:

[0026] a. Select a matching conductor through hole 3 according to the cable conductor cross section;

[0027] b. Pre-sleeve the upper cooling module 1 and the lower cooling module 2 on one end of the cable conductor 23, align the first liquid-cooling docking port 10 and the second liquid-cooling docking port 11 with the third liquid-cooling docking port 12 and the fourth liquid-cooling docking port 13 respectively, insert the protrusion of the third liquid-cooling docking port 12 into the first liquid-cooling docking port 10 and keep it sealed and connected, insert the protrusion of the fourth liquid-cooling docking port 13 into the second liquid-cooling docking port 11 and keep it sealed and connected; when it is almost in place, make the positioning groove 21 and the positioning protrusion 22 cooperate to position, and continue to position the third liquid-cooling docking port The protruding portion of 12 is inserted into the first liquid-cooling docking port 10, and the protruding portion of the fourth liquid-cooling docking port 13 is inserted into the second liquid-cooling docking port 11 until it is completely in place; at this time, the first strong magnet 15, the second strong magnet 16, the third strong magnet 17 and the fourth strong magnet 18 provide strong magnetic force, and cooperate with the friction force provided by the two first sealing rings 14 provided on the protruding portion of the third liquid-cooling docking port 12 and the protruding portion of the fourth liquid-cooling docking port 13, so that the upper cooling module 1 and the cooling module 2 are tightly fitted to form a quick-installation device, and the wall surface of the conductor through hole 3 is tightly attached to the conductor;

[0028] c. Repeat step b to assemble the quick-install device on another cable conductor to be welded;

[0029] d. Connect one of the external liquid cooling ports of the two quick-install devices through a water pipe, and connect the other external liquid cooling ports to a water pump. After starting the water pump, the circulating cooling liquid will circulate in the circulating liquid cooling channel to take away the heat conducted to the quick-install device by the welded conductor. In addition, a blower can be used to perform air cooling on the first heat dissipation fin group 6 and the second heat dissipation fin group 7 to quickly take away the heat;

[0030] e. After cooling, use a water pump to drain the circulating cooling liquid in the quick-install device, remove the water pipe, and forcefully separate the upper cooling module 1 and the lower cooling module 2.

[0031] Compared with the prior art, the utility model has the following advantages:

[0032] 1. Easy installation and operation, which can realize the quick installation and disassembly of the quick-install device, avoiding the existing cooling device that requires two people to lock at the same time, or one person to lock back and forth step by step, otherwise it is easy to cause unbalanced force, resulting in one side not being close to the conductor or crushing the conductor;

[0033] 2. Reduce the number of water pipe interfaces and water pipes to reduce the probability of water leakage causing the quality of conductors to deteriorate after welding;

[0034] 3. Increase heat dissipation efficiency by setting up a heat dissipation fin group to increase the heat dissipation area and improve the heat dissipation efficiency of air cooling.

[0035] Finally, it should be emphasized that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various changes and modifications. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A quick-install device for cooling the welding part of a high-voltage cable conductor, comprising an upper cooling module (1) and a lower cooling module (2), wherein a conductor through hole (3) is formed in the middle of a body after the upper cooling module (1) and the lower cooling module (2) are matched, and characterized in that: The upper cooling module (1) and the cooling module (2) cooperate with each other in a magnetic attraction manner through a plurality of strong magnets symmetrically arranged on the upper cooling module (1) and the cooling module (2); the diameter of the conductor through hole (3) is smaller than the diameter of the conductor to be cooled; a circulating liquid cooling channel is arranged inside the matched body after the upper cooling module (1) and the cooling module (2) are matched and around the outer periphery of the conductor through hole (3), and the upper cooling module (1) and the cooling module (2) are sealed and connected to each other; a first external liquid cooling port (4) is arranged on the upper cooling module (1), and a second external liquid cooling port (5) is arranged on the cooling module (2); the first external liquid cooling port (4) and the second external liquid cooling port (5) are both connected to the circulating liquid cooling channel; a first heat dissipation fin group (6) is arranged on the upper cooling module (1), and a second heat dissipation fin group (7) is arranged on the cooling module (2).

2. A quick-installation device for cooling the welding part of a high-voltage cable conductor according to claim 1, characterized in that: The circulating liquid cooling channel is formed by a first liquid cooling channel (8) arranged inside the upper cooling module (1) and a second liquid cooling channel (9) arranged inside the lower cooling module (2); the first liquid cooling channel (8) is connected to the first external liquid cooling port (4), and the second liquid cooling channel (9) is connected to the second external liquid cooling port (5).

3. A quick-installation device for cooling the welding part of a high-voltage cable conductor according to claim 2, characterized in that: A first liquid cooling docking port (10) and a second liquid cooling docking port (11) are respectively arranged on the upper cooling module (1) and located on both sides of the conductor wire through hole (3); a third liquid cooling docking port (12) and a fourth liquid cooling docking port (13) are respectively arranged on the cooling module (2) and located on both sides of the conductor wire through hole (3); a protruding portion of the third liquid cooling docking port (12) is inserted into the first liquid cooling docking port (10) and maintained in a sealed and conductive manner; and a protruding portion of the fourth liquid cooling docking port (13) is inserted into the second liquid cooling docking port (11) and maintained in a sealed and conductive manner.

4. A quick-installation device for cooling the welding part of a high-voltage cable conductor according to claim 3, characterized in that: Two first sealing rings (14) are arranged on the protruding portion of the third liquid-cooling docking port (12) and the protruding portion of the fourth liquid-cooling docking port (13); the outer diameter of the first sealing ring (14) is greater than the inner diameter of the first liquid-cooling docking port (10) and the second liquid-cooling docking port (11); and second sealing rings (24) are arranged on the mating surfaces of the upper cooling module (1) and the cooling module (2) and on the peripheries of the protruding portion of the third liquid-cooling docking port (12) and the protruding portion of the fourth liquid-cooling docking port (13).

5. A quick-installation device for cooling the welding part of a high-voltage cable conductor according to claim 3, characterized in that: The upper cooling module (1) and the lower cooling module (2) are both made of copper.

6. A quick-installation device for cooling the welding part of a high-voltage cable conductor according to claim 5, characterized in that: A first strong magnet (15) and a second strong magnet (16) are symmetrically arranged in the upper cooling module (1) and close to a mating surface that matches the cooling module (2); a third strong magnet (17) and a fourth strong magnet (18) are symmetrically arranged in the cooling module (2) and close to a mating surface that matches the upper cooling module (1); the first strong magnet (15) and the third strong magnet (17) are arranged opposite to each other and are magnetically attracted to each other; and the second strong magnet (16) and the fourth strong magnet (18) are arranged opposite to each other and are magnetically attracted to each other.

7. A quick-installation device for cooling the welding part of a high-voltage cable conductor according to claim 1, characterized in that: A first conductor bayonet (19) is provided on the upper cooling module (1) and located in the middle of a mating surface that matches the cooling module (2), and a second conductor bayonet (20) is provided on the cooling module (2) and located in the middle of a mating surface that matches the upper cooling module (1), the first conductor bayonet (19) and the second conductor bayonet (20) matching to form the conductor wire hole (3).

8. A quick-installation device for cooling the welding part of a high-voltage cable conductor according to any one of claims 1 to 7, characterized in that: Two positioning grooves (21) are provided on the upper cooling module (1) and on a matching surface that matches the cooling module (2), and two positioning protrusions (22) that match the two positioning grooves (21) are provided on the cooling module (2) and on a matching surface that matches the upper cooling module (1).

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