A thin and high-voltage air-core reactor and method

Abstract

The present invention discloses a thin and tall high-voltage hollow reactor and method, comprising a reactor body and heat dissipation fins arranged on the outside of the reactor body for heat dissipation, wherein an upper star frame is arranged at the upper end of the reactor body, and the lower end of the reactor body is connected to a heat dissipation component for accelerating the air flow outside the heat dissipation fins to achieve heat dissipation through a buffer; the buffer comprises an upper base plate for connecting the bottom of the reactor body, and a lower base plate is arranged below the upper base plate. The present application is designed to address the drawbacks of the existing device, optimizes the connection method of the bottom of the reactor, adopts modular connection and fixation, and improves the connection efficiency. The buffer here can also effectively absorb energy, thereby reducing the noise generated when the reactor is working and increasing the service life. In addition, air expansion can be used for initial cooling, and physical evaporation cooling is combined at the same time to effectively improve the heat dissipation effect.

Description

Technical Field

[0001] The invention relates to the technical field of reactors, in particular to a thin and high-voltage air-core reactor and a method. Background Art

[0002] As a reactive compensation device in the power system, the reactor plays the role of limiting inrush current and absorbing high-order harmonics. The current-limiting reactor is used to limit the short-circuit current when a system fault occurs, so that the fault current is reduced to the allowable value. Due to the limitation of the installation site, some high-voltage products are thin and tall products. Since the weight of the reactor body is not heavy, in order to ensure installation stability, the existing technology usually increases the number of supports at the bottom of the reactor, increases the number of support connectors at the bottom of the reactor, and connects them with the on-site connection support. For high-voltage products, high-voltage grade insulators are used. This design increases the production and manufacturing costs of the reactor manufacturer, and increases the difficulty of installation for workers during the installation process. In addition, this multi-support connection method cannot be buffered, which leads to a large noise of the reactor. In addition, the heat dissipation performance of this traditional installation method is seriously insufficient, and the heat generated by the reactor cannot be removed, which is not conducive to improving the service life of the reactor.

[0003] Based on the above problems, a slim and tall high-voltage air-core reactor and method are now provided. Summary of the invention

[0004] The object of the present invention is to provide a slim and high-voltage air-core reactor and method to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A high-voltage hollow reactor of a slim type comprises a reactor body and heat dissipation fins arranged on the outside of the reactor body for heat dissipation, an upper star frame is arranged on the upper end of the reactor body, and a heat dissipation component for accelerating the air flow outside the heat dissipation fins to achieve heat dissipation is connected to the lower end of the reactor body through a buffer;

[0007] The buffer component includes an upper base plate for connecting to the bottom of the reactor body, a lower base plate is provided below the upper base plate, a spherical cavity is provided in the middle position of the upper end of the lower base plate, a rotating ball is provided in the spherical cavity, a fixing rod is provided at the upper end of the rotating ball, a fixing sleeve is slidably provided at the upper end of the fixing rod, the upper end of the fixing sleeve is connected and fixed to the bottom of the upper base plate, and the upper base plate and the lower base plate outside the rotating ball are connected and fixed by a plurality of buffer springs.

[0008] As a further solution of the present invention: the heat dissipation assembly includes an air supply box connected to the bottom of the buffer component, a rotating ring is rotatably provided on the upper end of the air supply box, the rotating ring is sleeved on the outside of the buffer component, a plurality of jet heat dissipation tubes are distributed in an array on the upper end of the rotating ring, a plurality of jet holes for spraying toward the reactor body are distributed on the inner side of each jet heat dissipation tube, the rotating ring is connected to a rotating driving member for driving the rotation thereof, a plurality of air intake ports for air intake are opened on the inner side of the rotating ring, and an air intake blade for guiding the airflow to enter is provided at each air intake port position.

[0009] As a further solution of the present invention: the heat dissipation component also includes an auxiliary heat dissipation mechanism for providing evaporative refrigerant, the auxiliary heat dissipation mechanism includes a storage box arranged at the lower end of the air supply box, a refrigerant liquid storage tank for storing refrigerant is arranged inside the storage box, a plurality of piston cylinders are distributed in an array at the bottom of the air supply box, a piston extrusion plate is slidably fitted inside the piston cylinder, a water suction pipe is provided at the feed port at the lower end of the piston cylinder, the lower end of the water suction pipe extends into the bottom of the refrigerant liquid storage tank, a one-way valve is provided on the water suction pipe so that the liquid can only flow in one direction, and the piston extrusion plate A connecting column is provided at the middle position of the upper end, and the upper end of the connecting column slides through the through-hole at the top of the piston cylinder, and the top of the connecting column is connected to a pressure plate, and the pressure plate and the top of the piston cylinder are connected by a plurality of return springs, and a drainage duct passes through the middle position of the connecting column, and the lower end of the drainage duct extends to the bottom of the piston extrusion plate, and a one-way valve for one-way spray of liquid is provided on the drainage duct, and an atomizing nozzle for atomizing the refrigerant is provided at the nozzle position at the top of the drainage duct, and a plurality of pressure wheels for pushing the pressure plate to slide downward are distributed in an array at the lower end of the rotating ring.

[0010] As a further solution of the present invention: the top of the pressure plate is an arc-shaped structure.

[0011] As a further solution of the present invention: an expansion and temperature regulating mechanism for assisting the airflow in reducing the temperature is provided on the outer side of the rotating ring, the expansion and temperature regulating mechanism includes a plurality of mounting ports arranged on the outer side of the rotating ring, each mounting port is provided with an air intake pipe, an air intake cone pipe is provided at the outer end of the air intake pipe for assisting the airflow compression, the air intake cone pipe is a conical structure with a larger opening at the outer end and a smaller opening at the inner end.

[0012] As a further solution of the present invention: heat dissipation strips are distributed on the outside of the air intake pipe, and the air intake pipe and the heat dissipation strips are made of metal material.

[0013] As a further solution of the present invention: a waterproof layer is provided on the outside of the reactor body.

[0014] As a further solution of the present invention: the rotating driving member includes a driven gear ring arranged on the upper end surface of the rotating ring, the driven gear ring is meshed with a driving gear, and the driving gear is connected to a driving motor for driving the driving gear to rotate.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: the present application is designed to address the drawbacks of the prior art, optimizes the connection method of the bottom of the reactor, adopts modular connection and fixation, and improves the connection efficiency. The buffer here can also effectively absorb energy, thereby reducing the noise generated when the reactor is working and increasing the service life. In addition, air expansion can be used for initial cooling, and physical evaporation cooling is combined to effectively improve the heat dissipation effect.

[0016] The rotary jet method in the present application can also eliminate heat dissipation dead corners and avoid the problem of uneven heat dissipation on the surface of the reactor body. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the present invention.

[0018] Figure 2 It is a schematic diagram of the internal structure of the present invention.

[0019] Figure 3 It is a schematic diagram of the structure of the buffer member in the present invention.

[0020] Figure 4 It is a schematic diagram of the structure of the piston cylinder in the present invention.

[0021] Among them: reactor body 11, heat dissipation fins 12, upper star frame 13, jet heat dissipation pipe 14, rotating ring 15, intake cone 16, intake pipe 17, intake port 18, intake blades 19, pressure wheel 20, pressure plate 21, water suction pipe 22, one-way valve 23, refrigerant liquid storage tank 24, air supply box 25, piston squeeze plate 26, storage box 27, connecting column 28, discharge conduit 29, atomizing nozzle 30, drive motor 31, drive gear 32, buffer 33, buffer spring 34, upper base plate 35, fixed sleeve 36, fixed rod 37, rotating ball 38, lower base plate 39. DETAILED DESCRIPTION

[0022] Example 1

[0023] See also Figure 1-Figure 4 In an embodiment of the present invention, a high-voltage air-core reactor of a slim type includes a reactor body 11 and heat dissipation fins 12 arranged on the outside thereof for heat dissipation, an upper star frame 13 is provided on the upper end of the reactor body 11, and a heat dissipation component for accelerating the air flow outside the heat dissipation fins 12 to achieve heat dissipation is connected to the lower end of the reactor body 11 through a buffer 33;

[0024] The buffer member 33 includes an upper base plate 35 for connecting to the bottom of the reactor body 11, a lower base plate 39 is provided below the upper base plate 35, a spherical cavity is provided at the middle position of the upper end of the lower base plate 39, a rotating ball 38 is provided in the spherical cavity, a fixing rod 37 is provided at the upper end of the rotating ball 38, a fixing sleeve 36 is slidably provided at the upper end of the fixing rod 37, the upper end of the fixing sleeve 36 is connected and fixed to the bottom of the upper base plate 35, and the upper base plate 35 and the lower base plate 39 outside the rotating ball 38 are connected and fixed by a plurality of buffer springs 34, so that in actual use, the fixing sleeve 36 can slide along the fixing rod 37, and the rotating ball 38 can rotate in the spherical cavity, so as to absorb impact forces in multiple directions, so that the impact force can be better absorbed and the noise pollution generated when the reactor is working can be reduced;

[0025] The heat dissipation assembly includes an air supply box 25 connected to the bottom of the buffer 33, a rotating ring 15 is rotatably provided at the upper end of the air supply box 25, and the rotating ring 15 is sleeved on the outside of the buffer 33. A plurality of jet heat dissipation pipes 14 are arranged in an array at the upper end of the rotating ring 15, and a plurality of jet holes for spraying toward the reactor body 11 are distributed on the inner side of each jet heat dissipation pipe 14. The rotating ring 15 is connected to a rotating driving member for driving the rotating ring 15 to rotate, and a plurality of air intake ports 18 for air intake are provided on the inner side of the rotating ring 15, and an air intake blade 19 is provided at each air intake port 18 to guide the airflow to enter. When the rotating ring 15 rotates rapidly, under the guidance of the air intake blade 19, the air inside the air supply box 25 will quickly enter the rotating ring 15, and then flow along the jet heat dissipation pipe 14, and then quickly spray out from the jet hole, thereby taking away the heat collected on the surface of the reactor body 11, and realizing cooling of the reactor body 11;

[0026] The heat dissipation assembly also includes an auxiliary heat dissipation mechanism for providing evaporative refrigerant, the auxiliary heat dissipation mechanism includes a storage box 27 arranged at the lower end of the air supply box 25, a refrigerant liquid storage tank 24 for storing refrigerant is provided inside the storage box 27, a plurality of piston cylinders are distributed in an array at the bottom of the air supply box 25, a piston extrusion plate 26 is slidably fitted inside the piston cylinder, a suction pipe 22 is provided at the feed port at the lower end of the piston cylinder, the lower end of the suction pipe 22 extends into the bottom of the refrigerant liquid storage tank 24, a one-way valve 23 is provided on the suction pipe 22 so that the liquid can only flow in one direction, a connecting column 28 is provided at the middle position of the upper end of the piston extrusion plate 26, the upper end of the connecting column 28 slides through the through hole at the top of the piston cylinder, the top of the connecting column 28 is connected to the pressure plate 21, and the pressure plate 21 is connected to the top of the piston cylinder by a plurality of return springs. A drainage conduit 29 is passed through the middle position of the connecting column 28, and the lower end of the drainage conduit 29 extends to the bottom of the piston extrusion plate 26. A one-way valve is provided on the drainage conduit 29 to allow the liquid to be sprayed out in one direction. An atomizing nozzle 30 for atomizing the refrigerant is provided at the top nozzle position of the drainage conduit 29. A plurality of pressure wheels 20 for pushing the pressure plate 21 to slide downward are distributed in an array at the lower end of the rotating ring 15. In this way, when the rotating ring 15 rotates rapidly, the pressure plate 21 will drive the piston extrusion plate 26 to slide downward, thereby compressing the refrigerant inside the piston cylinder. At this time, the refrigerant will flow out along the drainage conduit 29, and finally be sprayed out along the atomizing nozzle 30. The atomized refrigerant will be sprayed toward the surface of the reactor body 11 along the jet heat dissipation pipe 14. Under the action of the airflow, the refrigerant will evaporate and absorb heat, thereby cooling down from a physical point of view, effectively improving the cooling effect.

[0027] The top of the pressing plate 21 is an arc-shaped structure so as to better cooperate with the pressing wheel 20 and make the pressing transition smoother;

[0028] An expansion temperature regulating mechanism for assisting the airflow to reduce the temperature is provided on the outside of the rotating ring 15. The expansion temperature regulating mechanism includes a plurality of mounting ports provided on the outside of the rotating ring 15. An air inlet pipe 17 is provided at each mounting port. An air inlet cone 16 for assisting airflow compression is provided at the outer end of the air inlet pipe 17. The air inlet cone 16 is a conical structure with a large opening at the outer end and a small opening at the inner end. When the airflow enters the air supply box 25 from the outside, the airflow will be compressed under the guidance of the conical structure. The compressed air will expand after entering the air supply box 25, thereby reducing its own temperature, which provides a reliable premise for subsequent cooling.

[0029] The air intake pipe 17 is provided with heat dissipation strips on the outside thereof. The air intake pipe 17 and the heat dissipation strips are made of metal materials, which is more conducive to early cooling of the gas.

[0030] The rotating driving member includes a driven gear ring disposed on the upper end surface of the rotating ring 15, the driven gear ring meshes with a driving gear 32, the driving gear 32 is connected to a driving motor 31 for driving the driving gear 32 to rotate, the driving motor 31 drives the driving gear 32 to rotate, and the driving gear 32 cooperates with the driven gear ring to drive the rotating ring 15 to rotate quickly, thereby providing power for heat dissipation;

[0031] It should be noted that a waterproof layer is provided on the outside of the reactor body 11, so that it will not be affected by water mist;

[0032] A temperature sensor is provided on the outside of 11, and the temperature sensor is electrically connected to the controller, and the output end of the controller is electrically connected to the heat dissipation component, so that the temperature of the outside of the reactor body can be adjusted according to the feedback mechanism as needed.

[0033] The working principle of the present invention is: in actual use, the reactor body 11 is connected and fixed by the buffer member 33, the fixing sleeve 36 here can slide along the fixing rod 37, and the rotating ball 38 can rotate in the spherical cavity to absorb the impact force in multiple directions, so that the impact force can be better absorbed, the noise pollution generated when the reactor is working can be reduced, and the service life of the reactor is effectively improved. When the rotating ring 15 rotates rapidly, under the guidance of the air intake blades 19, the air inside the air supply box 25 will quickly enter the rotating ring 15, and then flow along the jet heat dissipation pipe 14, and then quickly ejected from the jet hole, so as to take away the heat collected on the surface of the reactor body 11, and realize the heat dissipation of the reactor body. 11 Cooling, when the air flow enters the air supply box 25 from the outside, the air flow will be compressed under the guidance of the conical structure, and the compressed air will expand after entering the air supply box 25, thereby reducing its own temperature, so that the initial cooling air flow temperature is relatively low, ensuring the heat dissipation effect, when the rotating ring 15 rotates rapidly, the pressure plate 21 will drive the piston extrusion plate 26 to slide downward, thereby compressing the refrigerant inside the piston cylinder, and the refrigerant will flow out along the discharge conduit 29, and finally be sprayed out along the atomizing nozzle 30, and the atomized refrigerant will be sprayed along the jet heat dissipation pipe 14 to the surface of the reactor body 11, and under the action of the air flow, the refrigerant will evaporate and absorb heat, thereby cooling from a physical point of view, effectively improving the cooling effect.

Claims

1. A high-voltage air-core reactor of a slender type, comprising a reactor body (11) and heat dissipation fins (12) arranged on the outer side thereof for heat dissipation, wherein an upper star frame (13) is provided at the upper end of the reactor body (11), characterized in that: The lower end of the reactor body (11) is connected to a heat dissipation component for accelerating the flow of air outside the heat dissipation fins (12) to achieve heat dissipation via a buffer (33); The buffer component (33) comprises an upper base plate (35) for connecting to the bottom of the reactor body (11); a lower base plate (39) is provided below the upper base plate (35); a spherical cavity is provided at the middle position of the upper end of the lower base plate (39); a rotating ball (38) is provided in the spherical cavity; a fixing rod (37) is provided at the upper end of the rotating ball (38); a fixing sleeve (36) is slidably provided at the upper end of the fixing rod (37); the upper end of the fixing sleeve (36) is connected and fixed to the bottom of the upper base plate (35); and the upper base plate (35) and the lower base plate (39) outside the rotating ball (38) are connected and fixed via a plurality of buffer springs (34); The heat dissipation assembly comprises an air supply box (25) connected to the bottom of the buffer (33); a rotating ring (15) is rotatably provided at the upper end of the air supply box (25); the rotating ring (15) is sleeved on the outer side of the buffer (33); a plurality of jet heat dissipation pipes (14) are arranged in an array at the upper end of the rotating ring (15); a plurality of jet holes for spraying toward the reactor body (11) are arranged on the inner side of each jet heat dissipation pipe (14); the rotating ring (15) is connected to a rotating driving member for driving the rotating ring to rotate; a plurality of air intake ports (18) for air intake are provided on the inner side of the rotating ring (15); and an air intake blade (19) for guiding airflow is provided at the position of each air intake port (18); The heat dissipation assembly also includes an auxiliary heat dissipation mechanism for providing evaporative refrigerant, the auxiliary heat dissipation mechanism including a storage box (27) arranged at the lower end of the air supply box (25), a refrigerant liquid storage tank (24) for storing refrigerant is provided inside the storage box (27), a plurality of piston cylinders are distributed in an array at the bottom of the air supply box (25), a piston extrusion plate (26) is slidably fitted inside the piston cylinder, a water suction pipe (22) is provided at the feed port at the lower end of the piston cylinder, the lower end of the water suction pipe (22) extends into the bottom of the refrigerant liquid storage tank (24), a one-way valve (23) is provided on the water suction pipe (22) so that liquid can only flow in one direction, and a connecting valve (23) is provided at the middle position of the upper end of the piston extrusion plate (26). The connecting column (28) has an upper end that slides through a hole at the top of the piston cylinder, and the top of the connecting column (28) is connected to a pressure plate (21). The pressure plate (21) and the top of the piston cylinder are connected via a plurality of return springs. A drainage conduit (29) runs through the middle of the connecting column (28). The lower end of the drainage conduit (29) extends to below the piston extrusion plate (26). A one-way valve that allows liquid to be sprayed out in one direction is provided on the drainage conduit (29). An atomizing nozzle (30) for atomizing the refrigerant is provided at the top nozzle position of the drainage conduit (29). A plurality of pressure wheels (20) for pushing the pressure plate (21) to slide downward are distributed in an array at the lower end of the rotating ring (15).

2. The slender high-voltage air-core reactor according to claim 1, characterized in that: The top of the pressure plate (21) is an arc-shaped structure.

3. The slender high-voltage air-core reactor according to claim 1, characterized in that: An expansion temperature regulating mechanism for assisting airflow in reducing temperature is provided on the outside of the rotating ring (15), the expansion temperature regulating mechanism comprising a plurality of mounting openings provided on the outside of the rotating ring (15), each mounting opening being provided with an air intake pipe (17), an air intake cone pipe (16) for assisting airflow compression is provided at the outer end of the air intake pipe (17), the air intake cone pipe (16) being a conical structure with a larger opening at the outer end and a smaller opening at the inner end.

4. The slender high-voltage air-core reactor according to claim 3, characterized in that: Heat dissipation strips are distributed on the outside of the air intake pipe (17), and the air intake pipe (17) and the heat dissipation strips are made of metal material.

5. The slender high-voltage air-core reactor according to claim 1, characterized in that: A waterproof layer is provided on the outside of the reactor body (11).

6. The slender high-voltage air-core reactor according to claim 1, characterized in that: The rotary drive member comprises a driven gear ring arranged on the upper end surface of the rotary ring (15), the driven gear ring meshing with a driving gear (32), and the driving gear (32) is connected to a driving motor (31) for driving the driving gear (32) to rotate.

7. A method for using the slim high-voltage air-core reactor according to any one of claims 1 to 6, characterized in that: The reactor body (11) is connected and fixed by a buffer member (33), wherein the fixing sleeve (36) can slide along the fixing rod (37), and the rotating ball (38) can rotate in the spherical cavity so as to absorb impact forces in multiple directions. In this way, the impact force can be better absorbed, the noise pollution generated when the reactor is working can be reduced, and the service life of the reactor can be effectively improved. When the rotating ring (15) rotates rapidly, under the guidance of the air intake blade (19), the air inside the air supply box (25) will quickly enter the rotating ring (15), then flow along the jet heat dissipation pipe (14), and then be quickly ejected from the jet hole, thereby taking away the heat collected on the surface of the reactor body (11), thereby achieving cooling of the reactor body (11). When air flows from the outside into the air supply box (25), the air flow will be compressed under the guidance of the conical structure. The compressed air will expand after entering the air supply box (25), thereby reducing its own temperature. In this way, the initial cooling air flow temperature is relatively low, thereby ensuring the heat dissipation effect. When the rotating ring (15) rotates rapidly, the pressure plate (21) will drive the piston extrusion plate (26) to slide downward, thereby compressing the refrigerant inside the piston cylinder. At this time, the refrigerant will flow out along the discharge conduit (29) and finally be atomized and sprayed along the atomizing nozzle (30). The atomized refrigerant will be sprayed along the jet heat dissipation pipe (14) toward the surface of the reactor body (11). Under the action of the air flow, the refrigerant will evaporate and absorb heat, thereby cooling from a physical point of view, effectively improving the cooling effect.

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