Liquid-cooled tube bus system

Abstract

The utility model relates to the bus connection field especially, and it is a kind of liquid cooling pipe type bus system.The utility model discloses a kind of liquid cooling pipe type bus system, including pipe type bus, including bus conductor, liquid inlet terminal, liquid outlet terminal.The both ends of the bus conductor are fixed sealing respectively by the liquid inlet terminal, liquid outlet terminal, the liquid inlet terminal is opened with liquid inlet, the liquid outlet terminal is opened with liquid outlet, cooling channel is equipped in the pipe type bus, the cooling channel with the liquid inlet, liquid outlet intercommunication;Connecting pipe, driving mechanism, filtering mechanism;Cooling liquid, the cooling liquid is insulating medium;The pipe type bus is formed access circulation by the connecting pipe and the driving mechanism, the filtering mechanism series connection, the cooling liquid fills the liquid cooling pipe type bus system;The utility model aims at providing a kind of safe and reliable, cooling efficiency high and reduce cost liquid cooling pipe type bus system.

Description

Technical Field

[0001] This utility model relates to the field of busbar connection, and in particular to a liquid-cooled tubular busbar system. Background Technology

[0002] In power equipment such as industrial blast furnaces, large transformers, and distribution cabinets, large currents need to be transmitted. Industrial blast furnaces, in particular, require currents of several thousand or even tens of thousands of amperes. Because the cross-section of a single cable is small and its current-carrying capacity is limited, multiple cables are often connected in parallel. However, multiple cables are prone to uneven current distribution, which can lead to individual cables overheating and threaten the safe operation of the system. Furthermore, when transmitting large currents, the busbar will generate heat due to resistance. Excessive heat can damage the insulation layer wrapped around the busbar, reduce its lifespan, and even cause safety hazards. Therefore, a liquid-cooled tubular busbar system with high cooling efficiency and low cost is needed. Utility Model Content In view of the shortcomings of the prior art, this utility model proposes a liquid-cooled tubular bus system, which has the advantages of safety and reliability, high cooling efficiency and reduced cost.

[0003] To achieve the above objectives, this utility model proposes a liquid-cooled tubular busbar system, which includes: A tubular busbar includes a busbar conductor, an inlet terminal, and an outlet terminal. The two ends of the busbar conductor are fixedly sealed via the inlet and outlet terminals, respectively. The inlet terminal has an inlet, and the outlet terminal has an outlet. A cooling channel is provided inside the tubular busbar, communicating with the inlet and outlet. A connecting pipe includes an outlet pipe, an inlet pipe, and several connecting pipes. The outlet pipe is connected to the outlet, and the inlet pipe is connected to the inlet. A drive mechanism is located outside the tubular busbar, with one end connected to the outlet pipe via the connecting pipe. A filter mechanism is located outside the tubular busbar, with one end connected to the drive mechanism via the connecting pipe, and the other end connected to the inlet pipe via the connecting pipe. A coolant, which is an insulating medium, is provided. The tubular busbar circulates through the connecting pipe, the drive mechanism, and the filter mechanism in series, and the coolant fills the liquid-cooled tubular busbar system.

[0004] Preferably, the coolant includes at least one of pure water, insulating oil, fluorinated liquid, or pentaerythritol.

[0005] Preferably, the tubular busbar further includes a composite insulation layer and a sheath. The composite insulation layer is disposed on the outer layer of the busbar conductor and is in close contact with the busbar conductor. The composite insulation layer includes at least one of a conductor shielding layer, an insulation layer, and an insulation shielding layer. The sheath is disposed on the outer layer of the composite insulation layer and is in close contact with the composite insulation layer. The sheath is a radiation cross-linked polyolefin material.

[0006] Preferably, the inlet pipe is provided with a skirt at one end near the inlet terminal, and the outlet pipe is provided with a skirt at one end near the outlet terminal.

[0007] Preferably, a heat dissipation mechanism is further provided between the drive mechanism and the tubular busbar, one end of the heat dissipation mechanism is connected to the liquid outlet pipe, and the other end of the heat dissipation mechanism is connected to the drive mechanism through a through pipe; a heating mechanism is further provided between the filtration mechanism and the tubular busbar, one end of the heating mechanism is connected to the liquid inlet pipe, and the other end of the heating mechanism is connected to the filtration mechanism through the through pipe; the tubular busbar, the heat dissipation mechanism, the drive mechanism, the filtration mechanism and the heating mechanism are connected in series to form a circulating path.

[0008] Preferably, the filtration mechanism includes a primary filtration device, a secondary filtration device, a tertiary filtration device, a quaternary filtration device, and a quinary filtration device.

[0009] Preferably, the primary filtration device contains quartz sand particles, the secondary filtration device contains activated carbon particles, the tertiary filtration device contains softening resin, the quaternary filtration device contains polypropylene fibers, and the quinary filtration device contains a reverse osmosis membrane.

[0010] This invention significantly reduces the temperature rise of the busbar conductor by setting up a novel liquid-cooled tubular busbar system. The inlet terminal has a liquid inlet, and the outlet terminal has a liquid outlet, allowing the connecting pipe to achieve a sealed connection with the tubular busbar. The drive mechanism provides the circulating power for the liquid-cooled tubular busbar system, and the filter mechanism filters impurities in the system, significantly reducing the content of conductive particles. The coolant is an insulating medium, preventing high voltage from causing breakdown and short circuits in the liquid-cooled tubular busbar system, thus improving its safety. This liquid-cooled tubular busbar system, by setting the drive mechanism and filter mechanism outside the tubular busbar, fully utilizes the inner cavity of the busbar conductor as a liquid-cooling channel for forced cooling, significantly reducing the conductor's current-carrying temperature rise and substantially reducing conductor costs. Attached Figure Description

[0011] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0012] Figure 1 This is a structural schematic diagram of an embodiment of the present utility model. Figure 2 This is a schematic diagram of the structure at point A in one embodiment of the present invention.

[0013] In the above attached figures: 1. Tubular busbar; 11. Busbar conductor; 121. Liquid inlet terminal; 122. Liquid outlet terminal; 13. Composite insulation layer; 14. Sheath; 15. Coolant; 16. Liquid outlet; 17. Liquid inlet; 2. Umbrella skirt; 3. Connecting pipe; 31. Liquid outlet pipe; 32. Liquid inlet pipe; 33. Through pipe; 4. Heat dissipation mechanism; 5. Drive mechanism; 6. Filtration mechanism; 61. Primary filtration device; 62. Secondary filtration device; 63. Tertiary filtration device; 64. Quaternary filtration device; 65. Fifth filtration device; 7. Heating mechanism.

[0014] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of this utility model are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure), and are not intended to indicate or imply that the mechanism or element referred to must have a specific orientation, be constructed and operated in a specific way. Therefore, they should not be construed as limitations on this utility model. If the specific posture changes, the directional indication will also change accordingly.

[0017] like Figure 1 and Figure 2As shown, this utility model provides a liquid-cooled tubular busbar system, including a tubular busbar 1, comprising a busbar conductor 11, a liquid inlet terminal 121, and a liquid outlet terminal 122. The two ends of the busbar conductor 11 are fixedly sealed via the liquid inlet terminal 121 and the liquid outlet terminal 122, respectively. The liquid inlet terminal 121 has a liquid inlet 17, and the liquid outlet terminal 122 has a liquid outlet 16. A cooling channel is provided inside the tubular busbar 1, and the cooling channel communicates with the liquid inlet 17 and the liquid outlet 16. A connecting pipe 3 includes a liquid outlet pipe 31, a liquid inlet pipe 32, and several connecting pipes 33. The liquid outlet pipe 31 connects to... The outlet 16 is connected, and the inlet pipe 32 is connected to the inlet 17; the drive mechanism 5 is located outside the tubular busbar 1, and one end of the drive mechanism 5 is connected to the outlet pipe 31 through the through pipe 33; the filter mechanism 6 is located outside the tubular busbar 1, and one end of the filter mechanism 6 is connected to the drive mechanism 5 through the through pipe 33, and the other end is connected to the inlet pipe 32 through the through pipe 33; the coolant 15 is an insulating medium; the tubular busbar 1 forms a circulation path through the connecting pipe 3, the drive mechanism 5, and the filter mechanism 6 connected in series, and the coolant 15 fills the liquid-cooled tubular busbar system.

[0018] In this embodiment, as Figure 1 As shown, by setting up a new type of liquid-cooled tubular busbar system, the temperature rise of the busbar conductor 11 can be significantly reduced. The liquid inlet terminal 121 has a liquid inlet 17, and the liquid outlet terminal 122 has a liquid outlet 16, so that the connecting pipe 3 can achieve a sealed connection with the tubular busbar 1. The drive mechanism 5 provides the circulation power for the liquid-cooled tubular busbar system. The filter mechanism 6 filters impurities in the liquid-cooled tubular busbar system, greatly reducing the content of conductive particles in the system. The coolant 15 is an insulating medium to avoid high voltage causing breakdown and short circuit in the liquid-cooled tubular busbar system, thereby improving the safety of the liquid-cooled tubular busbar system. This liquid-cooled tubular busbar system makes full use of the inner cavity of the busbar conductor 11 as a liquid cooling channel for forced cooling by setting the drive mechanism 5 and the filter mechanism 6 outside the tubular busbar 1, which can significantly reduce the conductor current temperature rise and greatly reduce the conductor cost.

[0019] In actual implementation, the material of the bus conductor 11 is not specifically limited, but copper or aluminum is preferred.

[0020] In actual implementation, the two ends of the bus conductor 11 are fixed and sealed by the terminals 12, and the preferred method of fixing the two is welding.

[0021] In actual implementation, there are no specific restrictions on the material of the connecting pipe 3, but copper or aluminum metal pipes are preferred.

[0022] In actual implementation, the drive mechanism 5 is preferably a water pump assembly.

[0023] In actual implementation, one end of the drive mechanism 5 can be directly connected to the outlet pipe 31 via the through pipe 33. When one end of the drive mechanism 5 is directly connected to the outlet pipe 31 via the through pipe 33, the through pipe 33 and the outlet pipe 31 can be separately set up, and the through pipe 33 and the outlet pipe 31 can be connected by a connector or by bonding. Of course, the through pipe 33 can also be integrally formed with the outlet pipe 31. The through pipe 33 and the outlet pipe 31 can also be connected in other ways, which are not limited here. Optionally, other devices can be connected in series between the drive mechanism 5 and the tubular busbar 1. For example, a mechanism that helps reduce the temperature rise of the busbar conductor 11 can be set between the drive mechanism 5 and the tubular busbar 1 to form a connected state.

[0024] In actual implementation, one end of the filter mechanism 6 is connected to the drive mechanism 5 via a through-pipe 33, and the other end can be directly connected to the inlet pipe 32 via the through-pipe 33. When the filter mechanism 6 is directly connected to the inlet pipe 32 via the through-pipe 33, the through-pipe 33 and the inlet pipe 32 can be separately set up, and the through-pipe 33 and the inlet pipe 32 can be connected by a connector or by bonding. Of course, the through-pipe 33 can also be integrally formed with the inlet pipe 32. The through-pipe 33 and the inlet pipe 32 can also be connected in other ways, which are not limited here. Optionally, other devices can be connected in series between the filter mechanism 6 and the tubular busbar 1. For example, a mechanism that helps reduce the temperature rise of the busbar conductor 11 can be set between the filter mechanism 6 and the tubular busbar 1 to form a connected state.

[0025] In one embodiment, the coolant 15 includes at least one of pure water, insulating oil, fluorinated liquid, or pentaerythritol.

[0026] In this embodiment, as Figure 1 and Figure 2 As shown, the coolant is an insulating medium, ensuring that there is no short circuit in the tubular busbar 1. The passage formed by the tubular busbar 1 through the connecting pipe 3, the drive mechanism 5, and the filter mechanism 6 is filled with coolant 15. The interior of the tubular busbar 1 is also filled with coolant 15, which can significantly reduce the temperature rise of the conductor. The inner cavity of the busbar conductor 11 is used as a liquid cooling channel for forced cooling. The channel does not need to occupy additional busbar path space, thus improving overall safety.

[0027] In actual implementation, the material of coolant 15 is preferably pure water.

[0028] In one embodiment, the tubular busbar 1 further includes a composite insulation layer 13 and a sheath 14. The composite insulation layer 13 is disposed on the outer layer of the busbar conductor 11 and is in close contact with the busbar conductor 11. The composite insulation layer 13 includes at least one of a conductor shielding layer, an insulation layer, and an insulation shielding layer. The sheath 14 is disposed on the outer layer of the composite insulation layer 13 and is in close contact with the composite insulation layer 13. The sheath 14 is a radiation cross-linked polyolefin material.

[0029] In this embodiment, as Figure 1 and Figure 2 As shown, the composite insulation layer 13 includes at least one of a conductor shielding layer, an insulation layer, and an insulation shielding layer, which achieves good conductivity of the tubular busbar, effectively reduces power loss, and improves power transmission efficiency. The sheath 14 is a radiation cross-linked polyolefin material, which protects the insulation layer from external factors such as mechanical damage, ultraviolet radiation, and chemical corrosion, and extends the service life of the tubular busbar.

[0030] In actual implementation, the composite insulation layer 13 serves as a conductor shielding layer.

[0031] In actual implementation, the composite insulation layer 13 is at least one of an insulation layer and an insulating shielding layer.

[0032] In one embodiment, a skirt 2 is provided at one end of the inlet pipe 32 near the inlet terminal 121, and a skirt 2 is provided at one end of the outlet pipe 31 near the outlet terminal 122.

[0033] In this embodiment, as Figure 1 and Figure 2 As shown, the inlet pipe 32 near the inlet terminal 121 and the outlet pipe 31 near the outlet terminal 122 are both equipped with umbrella skirts 2 to prevent the high voltage of the main pipe body from discharging along the outer surface of the circulating water pipe and causing safety hazards.

[0034] In practice, there is no specific limit to the number of umbrella skirts 2.

[0035] In one embodiment, a heat dissipation mechanism 4 is also provided between the drive mechanism 5 and the tubular busbar 1. One end of the heat dissipation mechanism 4 is connected to the liquid outlet pipe 31, and the other end of the heat dissipation mechanism 4 is connected to the drive mechanism 5 through the through pipe 33. A heating mechanism 7 is also provided between the filter mechanism 6 and the tubular busbar 1. One end of the heating mechanism 7 is connected to the liquid inlet pipe 32, and the other end of the heating mechanism 7 is connected to the filter mechanism 6 through the through pipe 33. The tubular busbar 1, the heat dissipation mechanism 4, the drive mechanism 5, the filter mechanism 6 and the heating mechanism 7 are connected in series to form a circulating path.

[0036] In this embodiment, as Figure 1 and Figure 2 As shown, the liquid-cooled tubular bus system also includes several heat dissipation mechanisms 4 and several heating mechanisms 7. The heat dissipation mechanism 4 serves as the main heat dissipation device, which dissipates the heat generated by the flow of the liquid-cooled tubular bus system through circulation to the heat dissipation mechanism. When the external temperature is below zero degrees Celsius, the heating mechanism 7 is used to heat the coolant 15 in the liquid-cooled tubular bus system to prevent freezing. The overall structure is simple, with fewer parts, and is easy to install and replace.

[0037] In actual implementation, the number of heat dissipation mechanisms 4 is not specifically limited and can be set according to the actual situation. Heat dissipation mechanism 4 is preferably a heat sink.

[0038] In actual implementation, one end of the heat dissipation mechanism 4 is connected to the liquid outlet pipe 31, and the other end is connected to the drive mechanism 5 through the through pipe 33, so that a passage is formed between the liquid outlet pipe 31, the heat dissipation mechanism 4 and the drive mechanism 5, and the coolant 15 circulates in the passage for heat dissipation. The liquid outlet pipe 31, the heat dissipation mechanism 4 and the drive mechanism 5 can be connected in series.

[0039] In actual implementation, one end of the heat dissipation mechanism 4 is connected to the liquid outlet pipe 31. When there is more than one heat dissipation mechanism 4, multiple heat dissipation mechanisms 4 can be connected in series through the through pipe 33.

[0040] In actual implementation, the liquid-cooled tubular busbar 1 system consists of tubular busbar 1, liquid outlet pipe 31, heat dissipation mechanism 4, drive mechanism 5, filter mechanism 6, heating mechanism 7 and liquid inlet pipe 32 connected in series to form a circulating path.

[0041] In one embodiment, the filtration mechanism 6 includes a plurality of filtration devices, including a primary filtration device 61, a secondary filtration device 62, a tertiary filtration device 63, a quaternary filtration device 64, and a quinary filtration device 65.

[0042] In this embodiment, as Figure 1 and Figure 2 As shown, the filtration mechanism 6 includes a primary filtration device 61, a secondary filtration device 62, a tertiary filtration device 63, a quaternary filtration device 64, and a quinary filtration device 65, which filters the coolant to a deionized state, significantly reducing its conductivity and preventing high voltage from causing a short circuit by passing through the coolant and breaking down the main cooling system.

[0043] In actual implementation, the primary filter 61, secondary filter 62, tertiary filter 63, quaternary filter 64 and quinary filter 65 in the filter mechanism 6 are connected in series.

[0044] In one embodiment, the primary filtration device 61 contains quartz sand particles, the secondary filtration device 62 contains activated carbon particles, the tertiary filtration device 63 contains softening resin, the quaternary filtration device 64 contains polypropylene fibers, and the quinary filtration device 65 contains a reverse osmosis membrane.

[0045] In this embodiment, as Figure 1 and Figure 2As shown, the first-stage filtration device 61 contains small-particle quartz sand to remove impurities such as silt, colloids, suspended solids, and organic matter; the second-stage filtration device 62 contains activated carbon particles to adsorb harmful substances such as residual ammonia and remove discoloration and odors; the third-stage filtration device 63 contains softening resin to remove high-molecular polymers of calcium and magnesium ions from the water; the fourth-stage filtration device 64 contains polypropylene fibers to remove fine silt, red worms, nematodes, and particulate matter; and the fifth-stage filtration device 65 contains a reverse osmosis membrane to remove heavy metals, bacteria, parasites, and tiny impurities.

[0046] In actual implementation, micron-sized polypropylene fibers are placed in the four-stage filtration device 64.

[0047] In actual implementation, a nanoscale reverse osmosis membrane is placed in the five-stage filtration device 65.

[0048] The preferred embodiments of this utility model have been described in detail above. It should be understood that those skilled in the art can make numerous modifications and variations based on the concept of this utility model without creative effort. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of this utility model through logical analysis, reasoning, or limited experimentation on the basis of existing technology should be within the scope of protection defined by the claims.

Claims

1. A liquid-cooled tubular busbar system, characterized in that, The liquid-cooled tubular bus system includes: A tubular busbar (1) includes a busbar conductor (11), an inlet terminal (121), and an outlet terminal (122). The two ends of the busbar conductor (11) are fixed and sealed by the inlet terminal (121) and the outlet terminal (122), respectively. An inlet port (17) is provided on the inlet terminal (121), and an outlet port (16) is provided on the outlet terminal (122). A cooling channel is provided inside the tubular busbar (1), and the cooling channel is connected to the inlet port (17) and the outlet port (16). The connecting pipe (3) includes an outlet pipe (31), an inlet pipe (32) and several connecting pipes (33), wherein the outlet pipe (31) is connected to the outlet (16) and the inlet pipe (32) is connected to the inlet (17); A drive mechanism (5) is located outside the tubular busbar (1), and one end of the drive mechanism (5) is connected to the liquid outlet pipe (31) through the through pipe (33); A filter mechanism (6) is located outside the tubular busbar (1). One end of the filter mechanism (6) is connected to the drive mechanism (5) through the through pipe (33), and the other end is connected to the liquid inlet pipe (32) through the through pipe (33). Coolant (15), wherein the coolant is an insulating medium; The tubular busbar (1) is connected in series with the connecting pipe (3), the drive mechanism (5), and the filter mechanism (6) to form a circulation path, and the coolant (15) fills the liquid-cooled tubular busbar system.

2. The liquid-cooled tubular busbar system as described in claim 1, characterized in that, The coolant (15) includes at least one of pure water, insulating oil, fluorinated liquid or pentaerythritol.

3. The liquid-cooled tubular busbar system as described in claim 1, characterized in that, The tubular busbar (1) further includes a composite insulation layer (13) and a sheath (14). The composite insulation layer (13) is disposed on the outer layer of the busbar conductor (11) and is in close contact with the busbar conductor (11). The composite insulation layer (13) includes at least one of a conductor shielding layer, an insulation layer, and an insulation shielding layer. The sheath (14) is disposed on the outer layer of the composite insulation layer (13) and is in close contact with the composite insulation layer (13). The sheath (14) is a radiation cross-linked polyolefin material.

4. The liquid-cooled tubular busbar system as described in claim 1, characterized in that, The inlet pipe (32) is provided with a skirt (2) at one end near the inlet terminal (121), and the outlet pipe (31) is provided with a skirt (2) at one end near the outlet terminal (122).

5. The liquid-cooled tubular busbar system as described in claim 1, characterized in that, A heat dissipation mechanism (4) is also provided between the drive mechanism (5) and the tubular busbar (1). One end of the heat dissipation mechanism (4) is connected to the liquid outlet pipe (31), and the other end of the heat dissipation mechanism (4) is connected to the drive mechanism (5) through the through pipe (33). A heating mechanism (7) is also provided between the filter mechanism (6) and the tubular busbar (1). One end of the heating mechanism (7) is connected to the liquid inlet pipe (32), and the other end of the heating mechanism (7) is connected to the filter mechanism (6) through the through pipe (33). The tubular busbar (1), the heat dissipation mechanism (4), the drive mechanism (5), the filter mechanism (6), and the heating mechanism (7) are connected in series to form a circulating path.

6. The liquid-cooled tubular busbar system as described in claim 1, characterized in that, The filtration mechanism (6) includes a primary filtration device (61), a secondary filtration device (62), a tertiary filtration device (63), a quaternary filtration device (64), and a quinary filtration device (65).

7. The liquid-cooled tubular busbar system as described in claim 6, characterized in that, The primary filtration device (61) contains quartz sand particles, the secondary filtration device (62) contains activated carbon particles, the tertiary filtration device (63) contains softening resin, the quaternary filtration device (64) contains polypropylene fibers, and the quinary filtration device (65) contains a reverse osmosis membrane.

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