CN115939993B - Heat dissipation type high-low voltage switch cabinet and heat dissipation cooling method - Google Patents
Heat dissipation type high-low voltage switch cabinet and heat dissipation cooling method Download PDFInfo
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- CN115939993B CN115939993B CN202310247321.0A CN202310247321A CN115939993B CN 115939993 B CN115939993 B CN 115939993B CN 202310247321 A CN202310247321 A CN 202310247321A CN 115939993 B CN115939993 B CN 115939993B
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- 238000001816 cooling Methods 0.000 title claims abstract description 128
- 230000017525 heat dissipation Effects 0.000 title claims abstract description 28
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 162
- 230000007704 transition Effects 0.000 claims description 56
- 238000003756 stirring Methods 0.000 claims description 36
- 238000001035 drying Methods 0.000 claims description 31
- 239000002184 metal Substances 0.000 claims description 26
- 239000003507 refrigerant Substances 0.000 claims description 23
- 238000000034 method Methods 0.000 claims description 4
- 238000006243 chemical reaction Methods 0.000 description 10
- 230000002159 abnormal effect Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 230000000630 rising effect Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 238000005057 refrigeration Methods 0.000 description 3
- 239000000110 cooling liquid Substances 0.000 description 2
- 230000010485 coping Effects 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 239000002274 desiccant Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/14—Extreme weather resilient electric power supply systems, e.g. strengthening power lines or underground power cables
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- Cooling Or The Like Of Electrical Apparatus (AREA)
- Cooling Or The Like Of Semiconductors Or Solid State Devices (AREA)
- Devices That Are Associated With Refrigeration Equipment (AREA)
Abstract
The invention discloses a heat-dissipation type high-low voltage switch cabinet and a heat-dissipation cooling method, belonging to the technical field of switch cabinets, comprising the following steps: the refrigerator, low-voltage element cooling circuit and high-voltage element cooling circuit, refrigerator, low-voltage element cooling circuit and high-voltage element cooling circuit set up in the cabinet body, low-voltage element cooling circuit is used for cooling the internal low-voltage electric element of cabinet, high-voltage element cooling circuit is used for cooling the internal high-voltage electric element of cabinet, when the during operation, low-voltage element water-cooled tube valve and connecting pipe valve are opened, outlet pipe valve and inlet tube valve are closed, the circulating pump work, when electric element of high-voltage or electric element temperature rise rapidly, the connecting pipe valve is closed, outlet pipe valve and inlet tube valve are opened, the inlet pump work.
Description
Technical Field
The invention relates to the technical field of switch cabinets, in particular to a heat-dissipation type high-low voltage switch cabinet and a heat-dissipation cooling method.
Background
The high-low voltage switch cabinet is the equipment for connecting high-voltage or low-voltage cables, the high-voltage cabinet is used for general power supply offices and power substations, then the voltage is reduced by a transformer and then the low-voltage cabinet is connected to each power distribution box, the inside of the low-voltage cabinet is not the electrical equipment for assembling some protective devices such as switch breakers into a whole, the high-low voltage switch cabinet is the electrical equipment, the outside line firstly enters a main control switch in the cabinet and then enters a sub-control switch, and all branches are arranged according to the needs. Such as meters, automatic control, motor magnetic switches, various ac contactors, etc., and high-voltage and low-voltage switchgear, high-voltage buses, such as power plants, etc., and low-cycle relief for protecting major equipment.
Under the normal condition, the high-low voltage switch cabinets are required to be placed in a certain place in quantity for use, when the high-low voltage switch cabinets are used, current can pass through electrical components in the high-low voltage switch cabinets, heat can be generated under the action of resistors along with the entering of the current, so that the internal temperature of the switch cabinets is increased, the existing high-low voltage switch cabinets are usually cooled by adopting an air cooling or water cooling mode, when the air cooling is carried out, air flows are blown into the high-low voltage switch cabinets by adopting an air blowing device, and heat exchange is carried out by utilizing the air flows, so that the aim of heat dissipation is achieved.
However, when the high-low voltage switch cabinet is used, the high-voltage element part or the low-voltage element part can generate current overload condition, so that the high-voltage original price part or the low-voltage element part can generate temperature rise exceeding a preset temperature in a short time, if the temperature of the element with the current overload part cannot be timely and effectively reduced, the ambient temperature of surrounding elements can be easily influenced, so that potential safety hazards of the surrounding elements can be increased, and according to the condition, air cooling heat dissipation is adopted, because the efficiency of heat conversion of air flow is low, the heat dissipation treatment cannot be effectively carried out for sudden element temperature rise, water cooling heat dissipation is adopted, because cooling liquid sequentially flows through the low-voltage element part and the high-voltage element part, the temperature of the current overload element part cannot be effectively and rapidly reduced due to the influence of the flowing path length of cooling liquid, and meanwhile, the temperature of the low-voltage element part cannot be more than 40 ℃ under the conventional current load, so that the temperature of the low-voltage element part and the high-voltage element part is required to be ensured to be in a safe state, and the problem of the high-voltage switch cabinet is needed to be solved.
Disclosure of Invention
The invention aims to solve the technical problems that: when the temperature of the high-voltage element part or the low-voltage element part suddenly rises, the high-voltage element part or the low-voltage element part can be effectively cooled, and the influence on surrounding elements is reduced.
The technical scheme adopted to solve the technical problems is as follows: a heat dissipation type high and low voltage switchgear comprising: the refrigerator comprises a cabinet body, a refrigerator, a low-voltage element cooling circuit and a high-voltage element cooling circuit;
the refrigerator, the low-voltage element cooling circuit and the high-voltage element cooling circuit are arranged in the cabinet body;
the low-voltage element cooling circuit is used for cooling the low-voltage element in the cabinet body, and the high-voltage element cooling circuit is used for cooling the high-voltage element in the cabinet body;
the low-pressure element cooling loop comprises a low-pressure element water cooling pipe valve, a circulating pump, a low-pressure element water cooling pipe, a first transition tank, a water outlet pipe and a water outlet pipe valve, wherein the refrigerator is connected with an inlet of the low-pressure element water cooling pipe valve, the circulating pump is connected with an outlet of the low-pressure element water cooling pipe valve, the low-pressure element water cooling pipe is connected between the circulating pump and the first transition tank, the first transition tank is connected with an inlet of the water outlet pipe valve, and an outlet of the water outlet pipe valve is connected with the refrigerator through a water outlet pipe;
the high-pressure element cooling loop comprises a water inlet pipe valve, a water inlet pump, a water inlet pipe, a second transition tank and a high-pressure element water cooling pipe, the refrigerator is connected with an inlet of the water inlet pipe valve, an outlet of the water inlet pipe valve is connected with the water inlet pump, the water inlet pump is connected with the second transition tank through the water inlet pipe, and the high-pressure element water cooling pipe is connected between the second transition tank and the refrigerator;
a connecting pipe is arranged between the first transition tank and the second transition tank, and a connecting pipe valve is arranged on the connecting pipe.
As a preferable technical scheme of the invention, the low-voltage electric element is provided with a low-voltage electric element temperature monitor, the high-voltage electric element is provided with a high-voltage electric element temperature monitor, the low-voltage element water-cooled tube is coiled on the low-voltage electric element, and the high-voltage element water-cooled tube is coiled on the high-voltage electric element.
As a preferable technical scheme of the invention, the cabinet body is provided with a controller which is respectively and electrically connected with a temperature monitor of the low-voltage electric element, a temperature monitor of the high-voltage electric element, a valve of the low-voltage element water cooling pipe, a valve of the water outlet pipe, a valve of the water inlet pipe, a valve of the connecting pipe, a circulating pump and a water inlet pump.
As a preferable technical scheme of the invention, a first stirring waterproof motor is arranged in the first transition tank, and the output end of the first stirring waterproof motor is connected with a first stirring rod.
As a preferable technical scheme of the invention, a second stirring waterproof motor is arranged in the second transition tank, and the output end of the second stirring waterproof motor is connected with a second stirring rod.
As a preferable technical scheme of the invention, a storage battery is arranged in the cabinet body, the storage battery is respectively and electrically connected with a first metal wire and a second metal wire, the first metal wire is connected with a low-voltage element water-cooled tube, the second metal wire is connected with a high-voltage element water-cooled tube, and a third metal wire is connected between the low-voltage element water-cooled tube and the high-voltage element water-cooled tube.
As a preferable technical scheme of the invention, a refrigerating unit and a refrigerating pipe are arranged in the refrigerator, the refrigerating pipe is arranged on the refrigerating unit, and the refrigerating unit is electrically connected with the controller.
As a preferable technical scheme of the invention, an auxiliary power supply line is electrically connected between the storage battery and the refrigerator.
As a preferable technical scheme of the invention, a low-voltage element drying box and a high-voltage element drying box are arranged in the cabinet body, a plurality of low-voltage element drying through holes are formed in the low-voltage element drying box, the low-voltage element drying box is arranged close to the low-voltage element, a plurality of high-voltage element drying through holes are formed in the high-voltage element drying box, and the high-voltage element drying box is arranged close to the high-voltage element.
The method for radiating and cooling the high-low voltage electric element by using the radiating type high-low voltage switch cabinet comprises the following steps:
s1: during normal operation, the low-pressure element water cooling pipe valve and the connecting pipe valve are opened, the water outlet pipe valve and the water inlet pipe valve are closed, and the circulating pump works;
s2: the circulating pump pumps the refrigerant in the refrigerator into the low-pressure element water-cooling pipe, the first transition tank, the connecting pipe, the second transition tank and the high-pressure element water-cooling pipe in sequence for circulation;
s3: the low-voltage electric element temperature monitor monitors that the temperature of the low-voltage electric element is rapidly increased, or the high-voltage electric element temperature monitor monitors that the temperature of the high-voltage electric element is rapidly increased, the low-voltage electric element temperature monitor transmits signals to the controller or the high-voltage electric element temperature monitor transmits signals to the controller, the controller controls the connecting pipe valve to be closed, the controller controls the water outlet pipe valve and the water inlet pipe valve to be opened, and the controller controls the water inlet pump to start working;
s4: the circulating pump pumps the refrigerant in the refrigerator into the low-pressure element water cooling pipe, the first transition tank and the water outlet pipe in sequence for circulation, and the water inlet pump pumps the refrigerant in the refrigerator into the water inlet pipe, the second transition tank and the high-pressure element water cooling pipe in sequence for circulation.
The beneficial effects of the invention are as follows:
the temperature of the low-voltage electric element is monitored through the low-voltage electric element temperature monitor, the temperature of the high-voltage electric element is monitored through the high-voltage electric element temperature monitor, when the temperature of the low-voltage electric element or the high-voltage electric element is abnormal, under the action of the controller, the valve of the connecting pipe is controlled to be closed, the valve of the water outlet pipe and the valve of the water inlet pipe are controlled to be opened, and the water inlet pump is controlled to work simultaneously, so that the low-voltage element water cooling pipe and the high-voltage element water cooling pipe respectively form two independent water cooling loops, and the cooling circulation frequency in the low-voltage element water cooling pipe and the high-voltage element water cooling pipe is increased, so that the aim of coping with abnormal temperature conditions is fulfilled, and the influence of temperature rise on surrounding elements is reduced.
The low-voltage electrical element temperature monitor monitors the temperature of the low-voltage electrical element at 40 ℃, the high-voltage electrical element temperature monitor monitors the temperature of the high-voltage electrical element at 75 ℃, and the controller controls the refrigerating effect of the refrigerator to ensure that the low-voltage electrical element and the high-voltage electrical element are at safe temperature during normal use.
Drawings
FIG. 1 is a schematic side view of the present invention;
FIG. 2 is a schematic illustration of a low pressure component water cooled tube, a high pressure component water cooled tube, and the like according to the present invention;
FIG. 3 is a schematic cross-sectional view of a first transition tank section of the present invention;
FIG. 4 is a schematic cross-sectional view of a second transition tank section of the present invention;
FIG. 5 is a schematic cross-sectional view of a portion of the refrigerator of the present invention;
FIG. 6 is a schematic view of a first agitator waterproof motor and the like of the present invention;
FIG. 7 is a schematic view of a second agitator waterproof motor and the like of the present invention;
fig. 8 is a block diagram of a controller portion of the present invention.
In the figure: 1. a cabinet body; 2. a low-voltage electric element; 3. a high-voltage electric element; 4. a refrigerator; 5. a low pressure element water-cooled tube; 6. a first transition tank; 7. a connecting pipe; 8. a second transition tank; 9. a high pressure element water-cooled tube; 10. a water outlet pipe; 11. a water inlet pipe; 12. a low pressure element water cooled tube valve; 13. a water outlet pipe valve; 14. a water inlet pipe valve; 15. a connecting pipe valve; 16. a refrigerating unit; 17. a refrigeration tube; 18. a first stirring waterproof motor; 19. a first stirring rod; 20. a second stirring waterproof motor; 21. a second stirring rod; 22. a storage battery; 23. a first metal line; 24. a second metal line; 25. a third metal line; 26. an auxiliary power supply line; 27. a low-voltage component drying box; 28. a high-voltage element drying box; 29. a controller; 30. a circulation pump; 31. and a water inlet pump.
Description of the embodiments
The present invention will now be described in further detail with reference to the accompanying drawings.
Referring to fig. 1-8, a heat dissipation type high-low voltage switch cabinet and a heat dissipation cooling method thereof comprise a cabinet body 1, a low voltage electric element 2, a high voltage electric element 3, a refrigerator 4, a low voltage element water cooling pipe 5, a first transition tank 6, a connecting pipe 7, a second transition tank 8, a high voltage element water cooling pipe 9, a water outlet pipe 10, a water inlet pipe 11, a low voltage element water cooling pipe valve 12, a water outlet pipe valve 13, a water inlet pipe valve 14, a connecting pipe valve 15, a refrigerating unit 16, a refrigerating pipe 17, a first stirring waterproof motor 18, a first stirring rod 19, a second stirring waterproof motor 20, a second stirring rod 21, a storage battery 22, a first metal wire 23, a second metal wire 24, a third metal wire 25, an auxiliary power supply line 26, a low voltage element drying box 27, a high voltage element drying box 28, a controller 29, a circulating pump 30 and a water inlet pump 31.
Referring to fig. 1, 2, 5, 8, a heat dissipation type high-low voltage switch cabinet, comprising: the refrigerator 4, the low-pressure element cooling circuit and the high-pressure element cooling circuit are arranged in the cabinet 1, the low-pressure element cooling circuit is used for cooling the low-pressure electric element 2 in the cabinet 1, the high-pressure element cooling circuit is used for cooling the high-pressure electric element 3 in the cabinet 1, the low-pressure electric element 2 is provided with a low-pressure electric element temperature monitor, the high-pressure electric element 3 is provided with a high-pressure electric element temperature monitor, the low-pressure element cooling circuit comprises a low-pressure element water cooling pipe valve 12, a circulating pump 30, a low-pressure element water cooling pipe 5, a first transition tank 6, a water outlet pipe 10 and a water outlet pipe valve 13, the high-pressure element cooling circuit comprises a water inlet pipe valve 14, a water inlet pump 31, a water inlet pipe 11, a second transition tank 8 and a high-pressure element water cooling pipe 9, the low-pressure element water cooling pipe 5 is coiled on the low-pressure element 2, the high-pressure element water cooling pipe 9 is coiled on the high-pressure element 3, a refrigerating unit 16 and a refrigerating pipe 17 are arranged in the refrigerator 4, the refrigerating pipe 17 is arranged on the refrigerating unit 16, the refrigerator 4 is connected with the inlet of the low-pressure element water cooling pipe valve 12, the circulating pump 30 is connected with the outlet of the low-pressure element water cooling pipe valve 12, the low-pressure element water cooling pipe 5 is connected between the circulating pump 30 and the first transition tank 6, the first transition tank 6 is connected with the inlet of the water outlet pipe valve 13, the outlet of the water outlet pipe valve 13 is connected with the refrigerator 4 through the water outlet pipe 10, the refrigerator 4 is connected with the inlet of the water inlet pipe valve 14, the outlet of the water inlet pipe valve 14 is connected with the water inlet pump 31, the water inlet pump 31 is connected with the second transition tank 8 through the water inlet pipe 11, the high-pressure element water cooling pipe 9 is connected between the second transition tank 8 and the refrigerator 4, a connecting pipe 7 is arranged between the first transition tank 6 and the second transition tank 8, a connecting pipe valve 15 is arranged on the connecting pipe 7, a controller 29 is arranged on the cabinet body 1, the controller 29 is respectively electrically connected with the low-pressure electrical element temperature monitor, the high-pressure electrical element temperature monitor, the low-pressure element water cooling pipe valve 12, the water outlet pipe valve 13, the water inlet pipe valve 14, the connecting pipe valve 15, the circulating pump 30 and the water inlet pump 31, the refrigerating unit 16 is electrically connected with the controller 29, preferably, the controller 29 comprises a signal conversion module, a signal processing module and an output control module, the signal conversion module is electrically connected with the signal processing module, the signal processing module is electrically connected with the output control module, the output control module is electrically connected with the low-pressure element water-cooling pipe valve 12, the water outlet pipe valve 13, the water inlet pipe valve 14, the connecting pipe valve 15, the circulating pump 30, the water inlet pump 31 and the refrigerating unit 16 respectively, the signal conversion module is electrically connected with the low-pressure element temperature monitor and the high-pressure element temperature monitor respectively, when the signal processing module is used for radiating heat in normal operation, the low-pressure element water-cooling pipe valve 12 and the connecting pipe valve 15 are in an open state, the water outlet pipe valve 13 and the water inlet pipe valve 14 are in a closed state, the circulating pump 30 is in an operating state, the circulating pump 30 pumps the refrigerant in the refrigerator 4 into the low-pressure element water-cooling pipe 5, the first transition tank 6, the connecting pipe 7, the second transition tank 8 and the high-pressure element water-cooling pipe 9 in sequence, and then circularly flows into the refrigerator 4 through the outlet of the high-pressure element water-cooling pipe 9, the refrigeration operation of the refrigerant is completed under the action of the refrigeration unit 16, because the cooling temperature of the low-voltage electric element 2 is lower than the cooling temperature of the high-voltage electric element 3, the cooling is performed in a serial connection mode, the use efficiency of the refrigerant can be improved at the same time, when the abnormal temperature of the low-voltage electric element 2 or the high-voltage electric element 3 is rapidly increased, the low-voltage electric element temperature monitor detects the abnormal signal of the low-voltage electric element 2 or the high-voltage electric element temperature monitor detects the abnormal signal of the high-voltage electric element 3, the low-voltage electric element temperature monitor or the high-voltage electric element temperature monitor transmits the signal to the signal conversion module for analog-digital conversion, then the signal is transmitted to the signal processing module, the signal processing module transmits the signal to the output control module, the output control module controls the connecting pipe valve 15 to be closed, simultaneously controlling the water outlet pipe valve 13 and the water inlet pipe valve 14 to be opened, and then controlling the water inlet pump 31 to start working, so that the low-pressure element water cooling pipe 5 and the high-pressure element water cooling pipe 9 form two independent cooling circulation processes, thereby increasing the circulation frequency of the refrigerant in the low-pressure element water cooling pipe 5, increasing the circulation frequency of the refrigerant in the high-pressure element water cooling pipe 9, and improving the corresponding cooling effect of the low-pressure element water cooling pipe 5 and the high-pressure element water cooling pipe 9 due to the increase of the circulation frequency of the refrigerant, so as to achieve the aim of coping with abnormal temperature of the low-pressure element 2 or the high-pressure element 3, simultaneously, when in normal use, the low-pressure element temperature monitor is used for monitoring the temperature of the low-pressure element 2 by 40 ℃, the high-pressure element temperature monitor is used for monitoring the temperature of the high-pressure element 3 by 75 ℃, with the increase of the operating time of the low-voltage electric component 2 and the high-voltage electric component 3, when the temperature of the low-voltage electric component 2 exceeds 40 ℃ or the temperature of the high-voltage electric component 3 exceeds 75 ℃, the low-voltage electric component temperature monitor or the high-voltage electric component temperature monitor transmits signals to the signal conversion module for analog-to-digital conversion, the signals are transmitted to the signal processing module after analog-to-digital conversion and then transmitted to the output control module, the output control film block controls the refrigerating unit 16 to increase the power, the refrigerating effect of the refrigerator 4 is improved, the cooling and heat dissipation effects of the refrigerant when flowing through the low-voltage component water cooling pipe 5 and the high-voltage component water cooling pipe 9 are improved, and according to the operating requirement, the condition that the low-voltage electric component 2 is independently used exists, when only the low-voltage electric element 2 is needed, the operation information is manually input into the signal processing module in advance, the signal processing module outputs a signal to the output control module, the output control module controls the connecting pipe valve 15 to close the refrigerant flow channel of the connecting pipe 7, meanwhile, the water outlet pipe valve 13 is opened, the purpose of refrigerating and radiating only the low-voltage electric element 2 is achieved, the consumption of refrigerating energy of the refrigerator 4 is reduced, and similarly, when only the high-voltage electric element 3 is needed, the operation signal is manually input into the signal processing module in advance, the signal processing module transmits the signal to the output control module, the output control module controls the low-voltage element water cooling pipe valve 12 and the connecting pipe valve 15 to be closed, the circulating pump 30 stops working, the water inlet pipe valve 14 is opened, and the water inlet pump 31 starts working.
Referring to fig. 1-4 and 6-7, a first stirring waterproof motor 18 is disposed in the first transition tank 6, an output end of the first stirring waterproof motor 18 is connected with a first stirring rod 19, a second stirring waterproof motor 20 is disposed in the second transition tank 8, an output end of the second stirring waterproof motor 20 is connected with a second stirring rod 21, the first stirring rod 19 is driven to rotate by the first stirring waterproof motor 18, the first stirring rod 19 is used for stirring the refrigerant in the first transition tank 6, circulation efficiency of the refrigerant in the first transition tank 6 can be ensured by stirring, the second stirring rod 21 is driven to rotate by the second stirring waterproof motor 20, and the rotating second stirring rod 21 is used for stirring the refrigerant in the second transition tank 8 and can ensure circulation efficiency of the refrigerant in the second transition tank 8 by stirring.
As shown in fig. 1-2, the storage battery 22 is disposed in the cabinet body 1, the storage battery 22 is electrically connected with the first metal wire 23 and the second metal wire 24, the first metal wire 23 is connected with the low-voltage element water-cooled tube 5, the second metal wire 24 is connected with the high-voltage element water-cooled tube 9, the third metal wire 25 is connected between the low-voltage element water-cooled tube 5 and the high-voltage element water-cooled tube 9, the auxiliary power supply line 26 is electrically connected between the storage battery 22 and the refrigerator 4, and by setting the first metal wire 23, the second metal wire 24 and the third metal wire 25, and by combining with the storage battery 22, current can be generated in the first metal wire 23 and the second metal wire 24 and stored by the storage battery 22, and auxiliary electric energy can be provided for the refrigerator 4 through the auxiliary power supply line 26, so as to achieve the purpose of heat energy and electric energy conversion.
Referring to fig. 1, a low-voltage element drying box 27 is disposed in the cabinet 1, a plurality of low-voltage element drying through holes are formed in the low-voltage element drying box 27, the low-voltage element drying box 27 is disposed near the low-voltage element 2, a high-voltage element drying box 28 is disposed in the cabinet 1, a plurality of high-voltage element drying through holes are formed in the high-voltage element drying box 28, the high-voltage element drying box 28 is disposed near the high-voltage element 3, and drying agents are disposed in the low-voltage element drying box 27 and the high-voltage element drying box 28, so that a moisture-proof effect is achieved.
The method for radiating and cooling the high-low voltage electric element by using the radiating type high-low voltage switch cabinet comprises the following steps:
s1: during normal operation, the low-pressure element water cooling pipe valve 12 and the connecting pipe valve 15 are opened, the water outlet pipe valve 13 and the water inlet pipe valve 14 are closed, and the circulating pump 30 works;
s2: the circulating pump 30 pumps the refrigerant in the refrigerator 4 into the low-pressure element water-cooling pipe 5, the first transition tank 6, the connecting pipe 7, the second transition tank 8 and the high-pressure element water-cooling pipe 9 in sequence for circulation;
s3: the low-voltage electric element temperature monitor monitors that the temperature of the low-voltage electric element 2 is rapidly increased, or the high-voltage electric element temperature monitor monitors that the temperature of the high-voltage electric element 3 is rapidly increased, the low-voltage electric element temperature monitor transmits a signal to the controller 29 or the high-voltage electric element temperature monitor transmits a signal to the controller 29, the controller 29 controls the connecting pipe valve 15 to be closed, the controller 29 controls the water outlet pipe valve 13 and the water inlet pipe valve 14 to be opened, and the controller 29 controls the water inlet pump 31 to start working;
s4: the circulating pump 30 pumps the refrigerant in the refrigerator 4 into the low-pressure element water cooling pipe 5, the first transition tank 6 and the water outlet pipe 10 in sequence for circulation, and the water inlet pump 31 pumps the refrigerant in the refrigerator 4 into the water inlet pipe 11, the second transition tank 8 and the high-pressure element water cooling pipe 9 in sequence for circulation.
Working principle: during the use, the refrigerant is filled in the refrigerator 4, under the normal condition of temperature, low pressure component water-cooled tube valve 12 and connecting tube valve 15 are in the open state, outlet pipe valve 13 and inlet tube valve 14 are in the closed state, circulating pump 30 works, refrigerant in the refrigerator 4 is pumped into low pressure component water-cooled tube 5, first transition tank 6, connecting tube 7, second transition tank 8 and high pressure component water-cooled tube 9 in proper order, low pressure component water-cooled tube 5 carries out heat dissipation cooling to low pressure component 2, high pressure component water-cooled tube 9 carries out heat dissipation cooling to high pressure component 3, when partial current overload of low pressure component 2 leads to the temperature rising, low pressure component temperature monitor monitors the temperature rising, or when partial current overload of high pressure component 3 leads to the temperature rising, high pressure component temperature monitor monitors the temperature rising, low pressure component temperature monitor transmits the signal to controller 29 or high pressure component water-cooled tube 29, controller 29 controls valve 15 to close, simultaneously outlet pipe valve 13 and valve 14 carry out heat dissipation cooling to high pressure component 2, thereby the high pressure component water-cooled tube valve 9, high pressure component water-cooled tube valve 31 and high pressure component water-cooled tube 9 start to work, thereby the high pressure component water-cooled tube 9 should be opened, and the high pressure component water-cooled tube 9 should be cooled down, respectively.
The foregoing has shown and described the basic principles, principal features and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above-described embodiments, and that the above-described embodiments and descriptions are only preferred embodiments of the present invention, and are not intended to limit the invention, and that various changes and modifications may be made therein without departing from the spirit and scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (8)
1. A heat dissipation type high and low voltage switchgear comprising: cabinet body (1), refrigerator (4), low-voltage element cooling circuit and high-voltage element cooling circuit, its characterized in that:
the refrigerator (4), the low-voltage element cooling circuit and the high-voltage element cooling circuit are arranged in the cabinet body (1);
the low-voltage element cooling circuit is used for cooling the low-voltage element (2) in the cabinet body (1), and the high-voltage element cooling circuit is used for cooling the high-voltage element (3) in the cabinet body (1);
the low-pressure element cooling loop comprises a low-pressure element water cooling pipe valve (12), a circulating pump (30), a low-pressure element water cooling pipe (5), a first transition tank (6), a water outlet pipe (10) and a water outlet pipe valve (13), wherein the refrigerator (4) is connected with an inlet of the low-pressure element water cooling pipe valve (12), the circulating pump (30) is connected with an outlet of the low-pressure element water cooling pipe valve (12), the low-pressure element water cooling pipe (5) is connected between the circulating pump (30) and the first transition tank (6), the first transition tank (6) is connected with an inlet of the water outlet pipe valve (13), and an outlet of the water outlet pipe valve (13) is connected with the refrigerator (4) through the water outlet pipe (10);
the high-pressure element cooling loop comprises a water inlet pipe valve (14), a water inlet pump (31), a water inlet pipe (11), a second transition tank (8) and a high-pressure element water cooling pipe (9), wherein the refrigerator (4) is connected with an inlet of the water inlet pipe valve (14), an outlet of the water inlet pipe valve (14) is connected with the water inlet pump (31), the water inlet pump (31) is connected with the second transition tank (8) through the water inlet pipe (11), and the high-pressure element water cooling pipe (9) is connected between the second transition tank (8) and the refrigerator (4);
a connecting pipe (7) is arranged between the first transition tank (6) and the second transition tank (8), and a connecting pipe valve (15) is arranged on the connecting pipe (7);
the low-voltage electric element (2) is provided with a low-voltage electric element temperature monitor, the high-voltage electric element (3) is provided with a high-voltage electric element temperature monitor, the low-voltage element water cooling pipe (5) is coiled on the low-voltage electric element (2), and the high-voltage element water cooling pipe (9) is coiled on the high-voltage electric element (3);
the cabinet body (1) is provided with a controller (29), and the controller (29) is electrically connected with a low-voltage electric element temperature monitor, a high-voltage electric element temperature monitor, a low-voltage element water cooling pipe valve (12), a water outlet pipe valve (13), a water inlet pipe valve (14), a connecting pipe valve (15), a circulating pump (30) and a water inlet pump (31) respectively;
under normal temperature conditions, the low-pressure element water-cooling pipe valve (12) and the connecting pipe valve (15) are in an open state, the water outlet pipe valve (13) and the water inlet pipe valve (14) are in a closed state, the circulating pump (30) is operated, when the temperature of the low-pressure element (2) is rapidly increased due to partial current overload, the low-pressure element temperature monitor monitors the temperature increase, or when the temperature of the high-pressure element (3) is rapidly increased due to partial current overload, the high-pressure element temperature monitor monitors the temperature increase, the low-pressure element temperature monitor transmits a signal to the controller (29) or the high-pressure element transmits a signal to the controller (29), the controller (29) controls the connecting pipe valve (15) to be closed, meanwhile, the water outlet pipe valve (13) and the water inlet pipe valve (14) are opened, and the water inlet pump (31) starts to operate, so that the low-pressure element water-cooling pipe (5) and the high-pressure element water-cooling pipe (9) form independent two cooling cycles.
2. A heat dissipation type high and low voltage switchgear as claimed in claim 1, wherein: a first stirring waterproof motor (18) is arranged in the first transition tank (6), and the output end of the first stirring waterproof motor (18) is connected with a first stirring rod (19).
3. A heat dissipation type high and low voltage switchgear as claimed in claim 1, wherein: a second stirring waterproof motor (20) is arranged in the second transition tank (8), and the output end of the second stirring waterproof motor (20) is connected with a second stirring rod (21).
4. A heat dissipation type high and low voltage switchgear as claimed in claim 1, wherein: the novel water-cooled cabinet is characterized in that a storage battery (22) is arranged in the cabinet body (1), the storage battery (22) is electrically connected with a first metal wire (23) and a second metal wire (24) respectively, the first metal wire (23) is connected with a low-voltage element water-cooled tube (5), the second metal wire (24) is connected with a high-voltage element water-cooled tube (9), and a third metal wire (25) is connected between the low-voltage element water-cooled tube (5) and the high-voltage element water-cooled tube (9).
5. A heat dissipation type high and low voltage switchgear as claimed in claim 1, wherein: the refrigerator (4) is internally provided with a refrigerating unit (16) and a refrigerating pipe (17), the refrigerating pipe (17) is arranged on the refrigerating unit (16), and the refrigerating unit (16) is electrically connected with the controller (29).
6. The heat dissipation type high-low voltage switch cabinet according to claim 4, wherein: an auxiliary power supply line (26) is electrically connected between the storage battery (22) and the refrigerator (4).
7. A heat dissipation type high and low voltage switchgear as claimed in claim 1, wherein: the novel low-voltage element drying cabinet is characterized in that a low-voltage element drying box (27) and a high-voltage element drying box (28) are arranged in the cabinet body (1), a plurality of low-voltage element drying through holes are formed in the low-voltage element drying box (27), the low-voltage element drying box (27) is arranged close to the position of the low-voltage element (2), a plurality of high-voltage element drying through holes are formed in the high-voltage element drying box (28), and the high-voltage element drying box (28) is arranged close to the position of the high-voltage element (3).
8. A method for cooling high-low voltage electric components by using the heat dissipation type high-low voltage switch cabinet as claimed in any one of claims 1-7, comprising the steps of:
s1: during normal operation, the low-pressure element water cooling pipe valve (12) and the connecting pipe valve (15) are opened, the water outlet pipe valve (13) and the water inlet pipe valve (14) are closed, and the circulating pump (30) works;
s2: the circulating pump (30) pumps the refrigerant in the refrigerator (4) into the low-pressure element water cooling pipe (5), the first transition tank (6), the connecting pipe (7), the second transition tank (8) and the high-pressure element water cooling pipe (9) in sequence for circulation;
s3: the low-voltage electric element temperature monitor monitors that the temperature of the low-voltage electric element (2) is rapidly increased, or the high-voltage electric element temperature monitor monitors that the temperature of the high-voltage electric element (3) is rapidly increased, the low-voltage electric element temperature monitor transmits a signal to the controller (29) or the high-voltage electric element temperature monitor transmits a signal to the controller (29), the controller (29) controls the connecting pipe valve (15) to be closed, the controller (29) controls the water outlet pipe valve (13) and the water inlet pipe valve (14) to be opened, and the controller (29) controls the water inlet pump (31) to start working;
s4: the circulating pump (30) pumps the refrigerant in the refrigerator (4) into the low-pressure element water cooling pipe (5), the first transition tank (6) and the water outlet pipe (10) in sequence for circulation, and the water inlet pump (31) pumps the refrigerant in the refrigerator (4) into the water inlet pipe (11), the second transition tank (8) and the high-pressure element water cooling pipe (9) in sequence for circulation.
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| CN119154102B (en) * | 2024-10-08 | 2025-07-22 | 广东辉恒电气科技有限公司 | Intelligent monitoring type high-low voltage power distribution cabinet and application method thereof |
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