CN117458308B - Compact modularized vacuum switch equipment - Google Patents
Compact modularized vacuum switch equipment Download PDFInfo
- Publication number
- CN117458308B CN117458308B CN202311432738.0A CN202311432738A CN117458308B CN 117458308 B CN117458308 B CN 117458308B CN 202311432738 A CN202311432738 A CN 202311432738A CN 117458308 B CN117458308 B CN 117458308B
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- China
- Prior art keywords
- medium
- medium box
- compartment
- breaker
- box
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 27
- 238000001816 cooling Methods 0.000 claims abstract description 17
- 238000003756 stirring Methods 0.000 claims description 30
- 230000017525 heat dissipation Effects 0.000 claims description 14
- 230000035939 shock Effects 0.000 claims description 7
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 239000002826 coolant Substances 0.000 abstract description 53
- 230000020169 heat generation Effects 0.000 description 5
- 239000000498 cooling water Substances 0.000 description 4
- 241000883990 Flabellum Species 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000003068 static effect Effects 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000000670 limiting effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/56—Cooling; Ventilation
- H02B1/565—Cooling; Ventilation for cabinets
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/20—Bus-bar or other wiring layouts, e.g. in cubicles, in switchyards
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/30—Cabinet-type casings; Parts thereof or accessories therefor
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/30—Cabinet-type casings; Parts thereof or accessories therefor
- H02B1/32—Mounting of devices therein
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/54—Anti-seismic devices or installations
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B13/00—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle
- H02B13/02—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle with metal casing
- H02B13/035—Gas-insulated switchgear
- H02B13/0354—Gas-insulated switchgear comprising a vacuum switch
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
Abstract
The application relates to a compact modularized vacuum switch device, which relates to the field of switch cabinets and comprises a switch cabinet body, wherein a breaker compartment is arranged in the switch cabinet body, a breaker body is arranged in the breaker compartment, a water cooling mechanism is arranged in the breaker compartment, the water cooling mechanism comprises a medium box arranged in the breaker compartment, and a convection assembly which is introduced into the medium box and conducts heat convection on cooling medium in the medium box, and the medium box is used for absorbing heat emitted by the breaker body. According to the application, the cooling medium is contained in the medium box, the cooling medium in the medium box can absorb heat emitted by the circuit breaker body, so that a part of the heat emitted by the circuit breaker body can be quickly transferred to the cooling medium in the medium box, the temperature of the cooling medium is increased, and then the cooling medium in the medium box is subjected to heat convection through the convection assembly, so that the heat in the cooling medium is transferred to the outside.
Description
Technical Field
The application relates to the field of switch cabinets, in particular to compact modular vacuum switch equipment.
Background
The high-voltage switch cabinet is used for on-off, control or protection in power generation, power transmission, power distribution, electric energy conversion and consumption of a power system, and is mainly suitable for various places such as power plants, substations, petrochemical industry, metallurgical steel rolling, light industry textile, factory and mine enterprises, residential communities, high-rise buildings and the like.
The prior high-voltage switch cabinet is internally provided with a breaker compartment, a relay instrument compartment, a bus compartment and a cable compartment which are mutually separated, wherein the breaker in the breaker compartment can generate a lot of heat when in operation and needs to be radiated, and most of the prior high-voltage switch cabinets naturally radiate heat by arranging radiating holes at the rear end of the prior high-voltage switch cabinet.
Aiming at the related technology, the switch cabinet cannot effectively dissipate heat, and as the internal temperature of the switch cabinet gradually rises, the aging speed of electric elements in the high-voltage switch cabinet is increased, fire is easily caused, and potential safety hazard is increased.
Disclosure of Invention
In order to dissipate heat inside a switchgear cabinet, the application provides a compact modular vacuum switchgear.
The application provides compact modularized vacuum switch equipment, which adopts the following technical scheme:
the utility model provides a compact modularization vacuum switchgear, includes the cubical switchboard body, the inside circuit breaker compartment that is provided with of cubical switchboard body, be provided with the circuit breaker body in the circuit breaker compartment, be provided with water cooling heat dissipation mechanism in the circuit breaker compartment, water cooling heat dissipation mechanism is including setting up in the indoor medium case of circuit breaker compartment, letting in the medium incasement and carrying out the convection current subassembly of heat convection current to its inside cooling medium, the medium case is used for absorbing the heat that the circuit breaker body sent.
Through adopting above-mentioned technical scheme, the inside splendid attire of medium case has cooling medium, and the cooling medium of medium incasement can absorb the heat that the circuit breaker body sent out, makes the heat that the circuit breaker body sent out partly can be quick by the cooling medium of being shifted to the medium incasement to make the temperature of cooling medium rise, then carry out the heat convection to the cooling medium of medium incasement portion through the convection assembly, thereby heat transfer to the external world in the cooling medium.
Optionally, a mounting plate is arranged in the breaker compartment, a buffer component is arranged between the mounting plate and the medium box, and the convection component comprises a convection pipe penetrating through and flowing into the medium box, flexible pipes arranged at two ends of the convection pipe, and a water inlet pipe and a water outlet pipe which are respectively connected with the two flexible pipes.
Through adopting above-mentioned technical scheme, the circuit breaker body can produce certain vibration in the course of the work, and this vibration can transmit for the medium case, can accelerate the flow of medium incasement cooling medium, improves the heat exchange efficiency between the cooling water in the convection tube and the cooling medium in the medium case.
Optionally, the buffer assembly includes telescopic link and buffer spring that sets up between mounting panel and medium case, be provided with the shock pad between mounting panel and the medium case.
Through adopting above-mentioned technical scheme, the setting of telescopic link and buffer spring can provide the space for the motion of medium case, and the vibration amplitude of medium case can be restricted to the setting of shock pad, makes the vibration amplitude of medium case can not be too violent.
Optionally, an inner medium cavity and an outer medium cavity which are mutually communicated are formed in the medium box, the convection tube is located in the inner medium cavity, the outer medium cavity is arranged in a protruding mode in the middle, the protruding portion of the outer medium cavity faces the breaker body, and the inner medium cavity is arranged in an oval mode.
By adopting the technical scheme, the inner medium cavity and the outer medium cavity in the medium box are both arranged to be curved surfaces, so that the heat exchange area between the cooling medium in the medium box and the hot air outside the cooling medium box can be increased.
Optionally, switch cabinet body is inside still to be provided with relay instrument room, generating line compartment and cable chamber, the cable chamber bottom is provided with first tuber pipe, be provided with the second tuber pipe between cable chamber top and the relay instrument room bottom, be provided with the third tuber pipe between relay instrument room top and the generating line compartment top, generating line compartment bottom is provided with the fourth tuber pipe that lets in the circuit breaker compartment, the one end that the fourth tuber pipe was kept away from to the circuit breaker compartment is provided with out the tuber pipe.
By adopting the technical scheme, when the switch cabinet body works, air is introduced into the first air pipe through the air pump, so that the components in the cable chamber can be ventilated and radiated, the air enters the bottom of the relay instrument chamber through the second air pipe, the components in the relay instrument chamber can be ventilated and radiated, and the air enters the top of the bus compartment through the third air pipe, so that the components in the bus compartment are radiated; air enters the middle of the compartment of the circuit breaker through the fourth air pipe, dissipates heat of the circuit breaker body through air outlet of the heat dissipation hopper, and enables the air with obviously increased temperature to be discharged through the air outlet pipe.
Optionally, the air-out end of fourth tuber pipe is towards circuit breaker body and medium case, medium case swivelling joint has the (mixing) shaft, the (mixing) shaft outside just is provided with the flabellum through the variable speed subassembly in medium case top.
Through adopting above-mentioned technical scheme, after wind blows out from the fourth tuber pipe, can drive the flabellum and rotate to drive the (mixing) shaft and rotate, make the (mixing) shaft stir the coolant in the interior medium chamber, further improve coolant's flow.
Optionally, the variable speed subassembly is including setting up in the (mixing) shaft outside and be located the gear wheel at medium case top, rotate the driving shaft of connecting in medium case top and set up in the driving shaft outside and with gear wheel engagement's pinion, the flabellum sets up in the driving shaft outside.
By adopting the technical scheme, the rotation period of the large gear is longer than that of the small gear, so that the force required by the rotation of the fan blade is smaller.
Optionally, a heat conducting rod is arranged on one side, close to the breaker body, of the medium box, and the heat conducting rod penetrates through the side wall of the medium box.
Through adopting above-mentioned technical scheme, the heat that the circuit breaker body was given out can pass through the heat conduction stick and transmit the heat to the medium incasement portion through the heat conduction stick, improves the heat exchange area.
Optionally, the stirring shaft is conical with thick upper part and thin lower part.
By adopting the technical scheme, the cooling working medium around the stirring shaft can form a vortex with big top and small bottom, and the flow of the cooling medium is further improved.
Optionally, a spiral groove is formed in the outer side of the stirring shaft.
By adopting the technical scheme, the spiral groove can continuously convey the external cooling medium downwards, so that the flow of the cooling medium is further improved.
In summary, the present application includes at least one of the following beneficial technical effects:
1. The cooling medium in the medium box can absorb the heat emitted by the breaker body, so that a part of the heat emitted by the breaker body can be quickly transferred to the cooling medium in the medium box, the temperature of the cooling medium is increased, and then the cooling medium in the medium box is subjected to heat convection through the convection assembly, so that the heat in the cooling medium is transferred to the outside;
2. In the working process of the circuit breaker body, certain vibration can be generated, the vibration can be transmitted to the medium box, the flow of cooling medium in the medium box can be quickened, and the heat exchange efficiency between the cooling water in the convection pipe and the cooling medium in the medium box is improved;
3. After the wind blows out from the fourth air pipe, the fan blade can be driven to rotate, so that the stirring shaft is driven to rotate, the cooling medium in the inner medium cavity can be stirred by the stirring shaft, and the flow of the cooling medium is further improved.
Drawings
FIG. 1 is a schematic diagram of a compact modular vacuum switching apparatus;
FIG. 2 is a schematic view of the internal structure of a compact modular vacuum switching apparatus;
FIG. 3 is a front view of a compact modular vacuum switching apparatus;
FIG. 4 is a schematic diagram of a water cooling mechanism of a compact modular vacuum switching apparatus;
FIG. 5 is a side view of a water cooling mechanism of a compact modular vacuum switching apparatus;
fig. 6 is a schematic diagram of a variable speed assembly of a compact modular vacuum switching apparatus.
Reference numerals illustrate: 1. a switch cabinet body; 2. a circuit breaker compartment; 3. a relay instrument room; 4. a busbar compartment; 5. a cable chamber; 6. a circuit breaker body; 7. a first air duct; 8. a second air duct; 9. a third air duct; 10. a fourth air duct; 11. a heat dissipation bucket; 12. an air outlet pipe; 13. a media box; 14. a convection assembly; 15. a mounting plate; 16. a convection tube; 17. a flexible tube; 18. a water inlet pipe; 19. a water outlet pipe; 20. a telescopic rod; 21. a buffer spring; 22. a shock pad; 23. an inner dielectric cavity; 24. an outer dielectric cavity; 25. a mounting cavity; 26. a heat conduction rod; 27. a stirring shaft; 28. a speed change assembly; 29. a fan blade; 30. a large gear; 31. a driving shaft; 32. a pinion gear; 33. a vent; 34. a spiral groove.
Detailed Description
The application is described in further detail below with reference to fig. 1-6.
The embodiment of the application discloses compact modularized vacuum switch equipment. Referring to fig. 1 and 2, the compact modular vacuum switchgear includes a switchgear body 1, a breaker compartment 2, a relay instrument room 3, a bus compartment 4 and a cable room 5 are internally installed in the switchgear body 1, and the breaker compartment 2, the relay instrument room 3, the bus compartment 4 and the cable room 5 are separated from each other, a breaker body 6 is internally installed in the breaker compartment 2, a bus is installed in the bus compartment 4, and a static contact box, a grounding switch, a current transformer, a capacitive voltage divider and a lightning arrester are installed in the cable room 5. It should be noted that, all parts of the breaker compartment 2, the relay instrument compartment 3, the bus compartment 4 and the cable compartment 5 installed inside are all in the prior art, and specific connection relationships are not described herein.
Referring to fig. 2, in order to perform integral heat dissipation on the switch cabinet body 1, the bottom of the cable chamber 5 is fixedly communicated with a first air pipe 7, one end, far away from the cable chamber 5, of the first air pipe 7 is communicated with air through an air pump, a second air pipe 8 is communicated between the top of the cable chamber 5 and the bottom of the relay instrument chamber 3, a third air pipe 9 is communicated between the top of the relay instrument chamber 3 and the top of the bus compartment 4, a fourth air pipe 10 communicated with the bottom of the bus compartment 4 is communicated with a fourth air pipe 10 communicated with the inside of the breaker compartment 2, one end, far away from the bus compartment 4, of the fourth air pipe 10 is fixedly communicated with a heat dissipation bucket 11, the opening of the heat dissipation bucket 11 faces downwards and faces the bottom of the breaker body 6, one end, far away from the fourth air pipe 10, of the breaker compartment 2 is communicated with an air outlet pipe 12, and one end, far away from the breaker compartment 2, of the air outlet pipe 12 is communicated with the outside.
The circuit breaker body 6 in the circuit breaker compartment 2 generates a large amount of heat during operation, the bus bar in the bus bar compartment 4 generates a medium amount of heat during operation, and the relay in the relay instrument room 3 and the static contact box, the grounding switch, the current transformer, the capacitive voltage divider and the lightning arrester in the cable room 5 generate a small amount of heat during operation.
When the switch cabinet body 1 works, air is introduced into the first air pipe 7 through the air pump, and because the lower ports of the first air pipe 7 and the second air pipe 8 are arranged in alignment, after the air enters the cable chamber 5, all parts in the cable chamber 5 can be ventilated and radiated as much as possible, and because the parts in the cable chamber 5 generate less heat, the air introduced into the cable chamber 5 is enough to radiate the parts, so that the temperature of the air entering the second air pipe 8 is almost unchanged; air enters the bottom of the relay instrument room 3 through the second air pipe 8, and because the upper port of the second air pipe 8 and the right port of the third air pipe 9 are arranged in alignment, after the air enters the relay instrument room 3, all parts in the relay instrument room 3 can be ventilated and radiated as much as possible, and because the parts in the relay instrument room 3 generate less heat, the air introduced into the relay instrument room 3 is enough to radiate the heat, so that the temperature of the air entering the third air pipe 9 is only slightly increased; air enters the top of the bus compartment 4 through the third air pipe 9, so that heat dissipation is carried out on parts in the bus compartment 4; air enters the middle part of the breaker compartment 2 through the fourth air pipe 10, dissipates heat of the breaker body 6 through air outlet of the heat dissipation hopper 11, and discharges air with remarkably increased temperature through the air outlet pipe 12. It should be noted that, the air is sequentially introduced into the areas with less heat generation, medium heat generation and serious heat generation, so that the components with different heat generation degrees can be radiated at one time, and the use efficiency of the air is improved.
Referring to fig. 3, in order to radiate heat of the breaker body 6 with the most serious heat generation, a water cooling and radiating mechanism is installed in the breaker compartment 2, the water cooling and radiating mechanism is provided with two groups and is located at the left side and the right side of the breaker body 6, the water cooling and radiating mechanism comprises a medium box 13 and a convection assembly 14, two mounting plates 15 are fixedly installed at two opposite side walls of the breaker compartment 2, the medium box 13 is located between the two mounting plates 15, and the convection assembly 14 is led into the medium box 13 and carries out heat convection and radiation on cooling mediums in the medium box. The cooling medium is contained in the medium box 13, the cooling medium in the medium box 13 can absorb heat emitted by the breaker body 6, a part of the heat emitted by the breaker body 6 can be quickly transferred to the cooling medium in the medium box 13, the temperature of the cooling medium is increased, and then the cooling medium in the medium box 13 is subjected to heat convection through the convection assembly 14, so that the heat in the cooling medium is transferred to the outside.
Referring to fig. 4, preferably, the convection assembly 14 includes a convection tube 16, a flexible tube 17, a water inlet tube 18 and a water outlet tube 19, the convection tube 16 is integrally located inside the medium tank 13, in this embodiment, the convection tube 16 is a serpentine tube, two ends of the convection tube 16 penetrate through the medium tank 13 and extend out, two flexible tubes 17 are respectively fixedly connected to opposite ends of the convection tube 16, the water inlet tube 18 and the water outlet tube 19 are respectively fixedly connected to one ends of the two flexible tubes 17 far away from each other, it should be noted that one ends of the water inlet tube 18 and the water outlet tube 19 far away from the flexible tubes 17 penetrate through and extend out of the switch cabinet body 1, and the water inlet tube 18 and the water outlet tube 19 are both communicated with an external circulating water system, and the external circulating water system is in the prior art.
Further, a buffer assembly is installed between the mounting plate 15 and the medium box 13, the buffer assembly comprises a telescopic rod 20 and a buffer spring 21, two ends of the telescopic rod 20 are fixedly connected with the mounting plate 15 and the medium box 13 respectively, the buffer spring 21 is sleeved on the outer side of the telescopic rod 20, and two ends of the telescopic rod 20 spring are fixedly connected with the mounting plate 15 and the medium box 13 respectively. The number of the telescopic rod 20 and the buffer spring 21 on each mounting plate 15 is four.
In the working process of the circuit breaker body 6, due to the electromagnetic force and mechanical vibration, certain vibration can be generated, the vibration can be transmitted to the medium tank 13 through the mounting plate 15 and the telescopic rod 20, the medium tank 13 is allowed to vibrate up and down in a relatively small amplitude in the vertical direction under the limiting effect of the telescopic rod 20, the flow of cooling medium in the medium tank 13 can be quickened in the vibration process of the medium tank 13, and the heat exchange efficiency between cooling water in the convection tube 16 and the cooling medium in the medium tank 13 is improved. In addition, the vibration amplitude of the breaker body 6 increases with the load thereof, and at this time, the vibration amplitude and the vibration frequency of the medium tank 13 both increase, further improving the heat exchange efficiency to accommodate the heat dissipation of different degrees.
Preferably, the mounting plate 15 and the medium tank 13 are fixed with a shock pad 22 at one end close to each other, and in this embodiment, the shock pad 22 is made of a rubber material and has a certain elasticity. The vibration amplitude of the medium box 13 can be limited by the shock pad 22, so that the vibration amplitude of the medium box 13 is not too severe, and the overall stability of the switch cabinet body 1 is improved.
Referring to fig. 5, further, an inner medium cavity 23 and an outer medium cavity 24 which are mutually communicated are formed in the medium box 13, the convection tube 16 is located in the inner medium cavity 23, the outer medium cavity 24 is closer to the breaker body 6 than the inner medium cavity 23, the outer medium cavity 24 is arranged in a protruding mode in the middle, the protruding portion of the outer medium cavity 24 faces the breaker body 6, and the inner medium cavity 23 is arranged in an oval mode. Since the inner medium chamber 23 and the outer medium chamber 24 in the medium tank 13 are each formed into a curved surface, the heat exchange area between the cooling medium in the medium tank 13 and the outside hot air can be increased. The medium tank 13 is made of a heat conductive material, so that the cooling medium and the external hot air exchange heat.
Preferably, the side of the medium box 13, which is close to and far away from the breaker body 6, is provided with a mounting cavity 25, the mounting cavity 25 is not communicated with the inside of the medium box 13, and a heat conducting rod 26 is arranged in the mounting cavity 25. In this embodiment, the heat conducting rod 26 is a copper rod, which has good heat conducting performance, so that the heat emitted by the breaker body 6 can be transferred through the heat conducting rod 26, and the heat is transferred to the inside of the medium box 13 through the heat conducting rod 26, so as to improve the heat exchange area.
Referring to fig. 5 and 6, further, the number of the heat dissipation hoppers 11 is three, the left and right two heat dissipation hoppers 11 face the medium box 13, two stirring shafts 27 vertically rotate in the medium box 13, the tops of the stirring shafts 27 penetrate through and extend out of the tops of the medium box 13, fan blades 29 are mounted on the stirring shafts 27 through a speed changing assembly 28, the speed changing assembly 28 comprises a large gear 30, a driving shaft 31 and a small gear 32, the large gear 30 is fixedly sleeved on the outer side of the stirring shafts 27, the large gear 30 is located at the top of the medium box 13, the driving shaft 31 vertically rotates at the top of the medium box 13, the small gear 32 is fixedly sleeved on the outer side of the driving shaft 31, the small gear 32 is meshed with the large gear 30, and the fan blades 29 are fixedly connected to the outer side of the driving shaft 31. The rotation period of the large gear 30 is longer than the rotation period of the small gear 32.
The size of the cooling bucket 11 positioned at the top of the medium box 13 is matched with that of the medium box 13, after the cooling bucket 11 blows air, the fan blades 29 can be driven to rotate, the fan blades 29 drive the large gear 30 to rotate through the small gear 32, and the stirring shaft 27 is driven to rotate through the large gear 30, and as the stirring shaft 27 is positioned in the medium box 13, the stirring shaft 27 can stir cooling medium in the inner medium cavity 23, the flow of the cooling medium is further improved, and the heat exchange efficiency between cooling water in the convection tube 16 and the cooling medium in the medium box 13 is further improved. It should be noted that, since the rotation period of the large gear 30 is longer than that of the small gear 32, the force required for the rotation of the fan blade 29 is smaller, and in this embodiment, the large gear 30 and the small gear 32 are both plastic gears, which has a light weight and facilitates smooth rotation. In addition, in order to smoothly drive the fan blades 29 to rotate by wind energy blown out from the heat sink 11, a vent 33 is formed in the mounting plate 15 positioned on the top of the medium box 13.
Preferably, the stirring shaft 27 is conical with a thick upper part and a thin lower part, and the stirring shaft 27 is conical, so that the volume and the mass of the stirring shaft 27 can be reduced, the stirring shaft 27 can smoothly rotate, and when the stirring shaft 27 with the thick upper part and the thin lower part rotates, the cooling working medium around the stirring shaft 27 can form a vortex with a big upper part and a small lower part, so that the flow of the cooling medium is further improved. In addition, the spiral groove 34 is formed on the outer side of the stirring shaft 27, and when the stirring shaft 27 rotates, the spiral groove 34 on the surface of the stirring shaft 27 can be driven to rotate together, and the rotation direction of the stirring shaft 27 is the same as the opening direction of the spiral groove 34, so that the spiral groove 34 can continuously convey the external cooling medium downwards, and the flow of the cooling medium is further improved.
The implementation principle of the compact modularized vacuum switch equipment provided by the embodiment of the application is as follows: when the switch cabinet body 1 works, air is introduced into the first air pipe 7 through the air pump, all parts in the cable chamber 5 are ventilated and radiated, the air enters the bottom of the relay instrument chamber 3 through the second air pipe 8, all parts in the relay instrument chamber 3 can be ventilated and radiated as much as possible, and the air enters the top of the bus compartment 4 through the third air pipe 9, so that the parts in the bus compartment 4 are radiated; air enters the middle part of the breaker compartment 2 through a fourth air pipe 10, the breaker body 6 is radiated by the air out of the radiating hopper 11, and the air with obviously raised temperature is discharged through an air outlet pipe 12; the cooling medium in the medium tank 13 can absorb the heat emitted by the breaker body 6, so that a part of the heat emitted by the breaker body 6 can be quickly transferred to the cooling medium in the medium tank 13, the temperature of the cooling medium is increased, and then the cooling medium in the medium tank 13 is subjected to heat convection through the convection assembly 14, so that the heat in the cooling medium is transferred to the outside.
The above embodiments are not intended to limit the scope of the present application, so: all equivalent changes in structure, shape and principle of the application should be covered in the scope of protection of the application.
Claims (8)
1. A compact modular vacuum switching apparatus, characterized by: the intelligent power supply device comprises a switch cabinet body (1), wherein a breaker compartment (2) is arranged in the switch cabinet body (1), a breaker body (6) is arranged in the breaker compartment (2), a water cooling and heat dissipation mechanism is arranged in the breaker compartment (2), the water cooling and heat dissipation mechanism comprises a medium box (13) arranged in the breaker compartment (2), and a convection assembly (14) which is led into the medium box (13) and conducts heat convection on cooling mediums in the medium box, and the medium box (13) is used for absorbing heat emitted by the breaker body (6); the switch cabinet is characterized in that a relay instrument room (3), a bus compartment (4) and a cable room (5) are further arranged in the switch cabinet body (1), a first air pipe (7) is arranged at the bottom of the cable room (5), a second air pipe (8) is arranged between the top of the cable room (5) and the bottom of the relay instrument room (3), a third air pipe (9) is arranged between the top of the relay instrument room (3) and the top of the bus compartment (4), a fourth air pipe (10) communicated into the breaker compartment (2) is arranged at the bottom of the bus compartment (4), and an air outlet pipe (12) is arranged at one end, far away from the fourth air pipe (10), of the breaker compartment (2); the air outlet end of the fourth air pipe (10) faces the breaker body (6) and the medium box (13), the medium box (13) is rotationally connected with a stirring shaft (27), and fan blades (29) are arranged on the outer side of the stirring shaft (27) and positioned at the top of the medium box (13) through a speed changing assembly (28).
2. The compact modular vacuum switching apparatus of claim 1 wherein: the circuit breaker is characterized in that a mounting plate (15) is arranged in the circuit breaker compartment (2), a buffer assembly is arranged between the mounting plate (15) and the medium box (13), and the convection assembly (14) comprises a convection tube (16) penetrating through and flowing into the medium box (13), soft tubes (17) arranged at two ends of the convection tube (16), and a water inlet tube (18) and a water outlet tube (19) which are respectively connected with the two soft tubes (17).
3. The compact modular vacuum switching apparatus of claim 2 wherein: the buffer assembly comprises a telescopic rod (20) and a buffer spring (21) which are arranged between the mounting plate (15) and the medium box (13), and a shock pad (22) is arranged between the mounting plate (15) and the medium box (13).
4. The compact modular vacuum switching apparatus of claim 2 wherein: an inner medium cavity (23) and an outer medium cavity (24) which are mutually communicated are formed in the medium box (13), the convection tube (16) is located in the inner medium cavity (23), the outer medium cavity (24) is arranged in a protruding mode in the middle, the protruding portion of the outer medium cavity (24) faces the breaker body (6), and the inner medium cavity (23) is arranged in an oval mode.
5. The compact modular vacuum switching apparatus of claim 1 wherein: the speed change assembly (28) comprises a large gear (30) arranged on the outer side of the stirring shaft (27) and positioned at the top of the medium box (13), a driving shaft (31) rotatably connected to the top of the medium box (13) and a small gear (32) arranged on the outer side of the driving shaft (31) and meshed with the large gear (30), and the fan blades (29) are arranged on the outer side of the driving shaft (31).
6. The compact modular vacuum switching apparatus of claim 1 wherein: one side of the medium box (13) close to the breaker body (6) is provided with a heat conducting rod (26), and the heat conducting rod (26) penetrates through the side wall of the medium box (13).
7. The compact modular vacuum switching apparatus of claim 1 wherein: the stirring shaft (27) is conical with thick upper part and thin lower part.
8. The compact modular vacuum switching apparatus of claim 1 wherein: a spiral groove (34) is formed in the outer side of the stirring shaft (27).
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| CN202311432738.0A CN117458308B (en) | 2023-10-31 | 2023-10-31 | Compact modularized vacuum switch equipment |
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| CN202311432738.0A CN117458308B (en) | 2023-10-31 | 2023-10-31 | Compact modularized vacuum switch equipment |
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| CN117458308A CN117458308A (en) | 2024-01-26 |
| CN117458308B true CN117458308B (en) | 2024-04-16 |
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| CN117458308A (en) | 2024-01-26 |
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