CN116780356B - High-voltage ring main unit with partial discharge on-line monitoring function - Google Patents
High-voltage ring main unit with partial discharge on-line monitoring function Download PDFInfo
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- CN116780356B CN116780356B CN202310503440.8A CN202310503440A CN116780356B CN 116780356 B CN116780356 B CN 116780356B CN 202310503440 A CN202310503440 A CN 202310503440A CN 116780356 B CN116780356 B CN 116780356B
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 32
- 238000002955 isolation Methods 0.000 claims abstract description 51
- 230000001681 protective effect Effects 0.000 claims abstract description 35
- 238000001816 cooling Methods 0.000 claims abstract description 20
- 239000002184 metal Substances 0.000 claims description 32
- 229910052751 metal Inorganic materials 0.000 claims description 32
- 238000009423 ventilation Methods 0.000 claims description 24
- 238000001514 detection method Methods 0.000 claims description 21
- 238000001035 drying Methods 0.000 claims description 18
- 238000007789 sealing Methods 0.000 claims description 13
- 230000001965 increasing effect Effects 0.000 claims description 8
- 230000002708 enhancing effect Effects 0.000 claims description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 230000008602 contraction Effects 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 17
- 239000000428 dust Substances 0.000 abstract description 12
- 230000017525 heat dissipation Effects 0.000 abstract description 10
- 238000000034 method Methods 0.000 abstract description 5
- 238000010586 diagram Methods 0.000 description 6
- 238000012423 maintenance Methods 0.000 description 5
- 125000006850 spacer group Chemical group 0.000 description 5
- 238000011084 recovery Methods 0.000 description 4
- 238000007664 blowing Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 230000002035 prolonged effect Effects 0.000 description 3
- 238000007791 dehumidification Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 239000013589 supplement Substances 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000009469 supplementation Effects 0.000 description 1
- 238000012546 transfer Methods 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
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/28—Casings; Parts thereof or accessories therefor dustproof, splashproof, drip-proof, waterproof or flameproof
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/12—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing
-
- 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
- H02B1/24—Circuit arrangements for boards or 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
- H02B1/56—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
- H02B13/00—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
The utility model discloses a high-voltage ring main unit with a partial discharge on-line monitoring function, which belongs to the technical field of high-voltage ring main units and comprises a mounting plate arranged on the side wall of a protection cabinet body, wherein a corrugated isolation sleeve is fixedly arranged on one side of the mounting plate far away from the protection cabinet body and can shrink and stretch by utilizing the corrugated shape of the mounting plate; the utility model adopts the mode that the air subjected to twice cooling exchanges heat with the high-voltage ring main unit, so that the effective heat dissipation effect of the high-voltage ring main unit is realized, no external dust is carried into the protective cabinet body by wind power in the whole heat dissipation process, and no extra energy is consumed.
Description
Technical Field
The utility model relates to the technical field of high-voltage ring main units, in particular to a high-voltage ring main unit with a partial discharge on-line monitoring function.
Background
The high-voltage ring network cabinet can improve the power supply reliability, so that a user can obtain power from two directions, a power supply network is generally connected into a ring shape, the power supply mode is simply called ring network power supply, the prior art adopts various technical schemes of dust prevention and heat dissipation aiming at the damage phenomenon of accumulated dust to high-voltage ring network cabinet equipment and circuits, and the utility model patent with the publication number of CN 211208908U: the utility model discloses a dustproof high-voltage ring network cabinet, which can effectively prevent rainwater from entering, when heat dissipation is needed, a second plate and a third plate are positioned on two sides of a first plate, the heat dissipation technical scheme is not affected, and the utility model patent with the publication number of CN 218351927U: the utility model discloses an outdoor waterproof ring main unit, which is characterized in that a supporting combination of a guide cover and a guide skirt in a waterproof dehumidification assembly can comprehensively shield a cabinet body assembly, guide and disperse external rainwater, and prevent the rainwater from flowing into the cabinet body assembly along the inside technical scheme, and the patent of the utility model with the publication number of CN 214673819U: the utility model provides an outdoor high-voltage ring net cage, but disclose through the dust screen body design dust resistance, can effectively block the dust and get into the dust screen inside and influence the technical scheme of the work of the heat dissipation dehumidification of fan, current dustproof effect of installing at outdoor high-voltage ring net cabinet is poor, can sacrifice dustproof effect when realizing the cooling function, so people need have the high-voltage ring net cabinet of partial discharge on-line monitoring function to solve the problem that exists among the prior art.
Disclosure of Invention
The utility model aims to provide a high-voltage ring main unit with a partial discharge on-line monitoring function, so as to solve the problems that the outdoor high-voltage ring main unit in the prior art is poor in dustproof effect and the dustproof effect is sacrificed while the cooling function is realized.
In order to achieve the above purpose, the present utility model provides the following technical solutions:
the high-voltage ring main unit with the partial discharge on-line monitoring function comprises a protection cabinet body and a high-voltage ring net cabinet arranged in the protection cabinet body, wherein a cabinet door is arranged on one side of an opening of the protection cabinet body, the high-voltage ring main unit further comprises a partial discharge detection device capable of detecting discharge current of a grounding copper braid belt, a dustproof heat exchange component, the partial discharge detection device is in signal connection with remote monitoring equipment to realize real-time monitoring, the high-voltage ring main unit further comprises a chassis drying component capable of drying the surrounding environment of the partial discharge detection device, the chassis drying component comprises a supporting chassis, a supporting frame groove, a ventilation channel, a fan exhaust hole, a wind channel, a fan and a wind channel air inlet hole, the top end of the inner side wall of the supporting chassis is provided with the supporting frame groove, the supporting chassis supports the protection cabinet body by using the supporting frame groove, the bottom end of the side wall of the supporting chassis is provided with the ventilation channel in a penetrating way, the ventilation channel can exchange air inside and outside the support underframe, a fan exhaust hole is formed in the inner side wall of the support underframe, a wind channel is formed in the inner side wall of the support underframe, a fan is installed in the wind channel and is electrically connected with an external power supply, a fan blowing port is communicated with the fan exhaust hole, a wind channel air inlet hole is formed in the top surface of the ventilation channel, one end of the wind channel air inlet hole, far away from the ventilation channel, is communicated with the wind channel, the fan sucks air through the wind channel air inlet hole, and then performs wind drying and blowing on the inner space of the support underframe, the wind channel air inlet hole is formed in the top surface of the ventilation channel, the wind fan can be prevented from sucking rainwater in rainy weather, the drying effect of the inner space of the support underframe is improved, the underframe drying assembly can always maintain the space below the protective cabinet body dry, the rainwater is prevented from accumulating, and stratum moisture evaporation enables the protective cabinet body to be affected by moist air, meanwhile, the local discharge detection device can be protected from being affected by moist air, the maintenance period of the local discharge detection device is prolonged, the detection stability of the local discharge detection device is improved, the dustproof heat exchange component can realize the function of cooling the inner part of the protective cabinet body in an air internal circulation mode by means of external air, the dustproof heat exchange component has good dustproof effect in an air internal circulation mode, the dustproof heat exchange component comprises a mounting plate mounted on the side wall of the protective cabinet body, a ripple isolation sleeve is fixedly mounted on one side of the mounting plate away from the protective cabinet body, the ripple isolation sleeve can shrink and stretch by utilizing the ripple shape of the mounting plate, a wind receiving plate is hermetically mounted on one side of the ripple isolation sleeve away from the mounting plate, a small-aperture vent pipe is fixedly mounted on the surface of the mounting plate, two ends of the small-aperture vent pipe are respectively communicated with the inner space of the ripple isolation sleeve and the inner space of the protective cabinet body, the ventilation speed between the protective cabinet body and the corrugated isolation sleeve is slow by utilizing a small-aperture ventilation pipe, the heat exchange pipe is fixedly arranged on the plate surface of the mounting plate, two ends of the heat exchange pipe penetrate through the side wall of the corrugated isolation sleeve and then extend to the outside, the outer side wall of the heat exchange pipe is sealed and attached with the side wall of the corrugated isolation sleeve, the outside air is circulated in the heat exchange pipe, the heat exchange is carried out by utilizing the side wall of the heat exchange pipe and the air in the corrugated isolation sleeve, the utility model reduces the temperature of the inner space of the corrugated isolation sleeve, further utilizes the small-aperture vent pipe to carry out the air circulation between the inner part of the protection cabinet body and the inner part of the corrugated isolation sleeve to reduce the temperature of the inner part of the protection cabinet body, and according to the common wind direction environment of the outdoor site, the wind receiving plate is installed and placed in the windward direction, the wind force pushes the wind receiving plate, the corrugated isolation sleeve is compressed and contracted, the air pressure of the inner space of the corrugated isolation sleeve is increased, and the temperature is increased, the inside air of ripple spacer sleeve is through the inside slow circulation of aperture breather pipe to the protection cabinet, at this in-process, under the effect of difference in temperature increase, rely on the heat exchange tube to carry out the inside air of ripple spacer sleeve and external air's heat exchange efficiency reinforcing, the inside air of ripple spacer sleeve presents the phenomenon of slowly circulating to the protection cabinet simultaneously cooling, the inside high-pressure air that passes through the cooling of ripple spacer sleeve utilizes the aperture breather pipe to penetrate into the internal portion of protection cabinet, get into the internal portion of protection cabinet's air and step down fast, the temperature reduces, the second cooling of air has been realized, the air through the twice cooling carries out the heat transfer with the high-pressure ring net cabinet again, realize the effective radiating effect to the high-pressure ring net cabinet, whole heat dissipation process does not have external dust to carry by wind-force and get into the internal portion of protection cabinet, and no extra energy consumption.
The metal heat exchange plates are arranged on the surface of the heat exchange tube, so that the heat exchange efficiency of the heat exchange tube can be enhanced.
The mounting panel is close to and receives the aerofoil one side and utilizes light spring and receives aerofoil elastic connection, receives the aerofoil that the wind-force promoted after losing the wind-force promotion, under the deformation restoring effort of light spring, can high-efficient resume initial position to the circulation is continuous cooling down in preparation, and can carry out a small amount of absorption to the internal air of protection cabinet in the recovery process, and the internal air of protection cabinet obtains the supplementation from the cabinet door gap, is windless state this moment, and the raise dust is few, can supplement and inhale clean air, and the protection cabinet body discharges partial hot air, inhales the supplementary cold air, further realizes the cooling effect.
The utility model discloses a heat exchange tube, including heat exchange tube, corrugated isolation sleeve, heat exchange tube, first collection tuber pipe of loudspeaker form is fixed to be linked together to heat exchange tube one end, the horn mouth of first collection tuber pipe is towards the wind direction, makes external wind can circulate fast in the heat exchange tube, improves the ripple isolation sleeve inside and the inside continuous difference in temperature between the two of heat exchange tube, reinforcing heat exchange efficiency.
The air conditioner is characterized by further comprising an inclined flow guide assembly for enhancing the air flow rate inside the heat exchange tube, the inclined flow guide assembly comprises an air guide tube, a mounting bracket and a second air collecting tube, the air guide tube is fixedly mounted on the rear wall of the protective cabinet body, the inner space of the air guide tube is mutually communicated with the inner space of the heat exchange tube, the second air collecting tube playing a role in collecting air is fixedly mounted at one end of the air guide tube, the air enters the air guide tube through the second air collecting tube to flow rapidly, negative pressure suction is formed, the air inside the heat exchange tube flows inside the air guide tube, the smoothness of air circulation inside the heat exchange tube is further enhanced, and the heat exchange efficiency is enhanced.
One end of the air guide pipe, which is close to the second air collection pipe, is inclined to the side wall of the corrugated isolation sleeve, so that the risk of air in the air guide pipe to be poured into the heat exchange pipe is reduced, and the smoothness of air circulation in the heat exchange pipe is ensured.
The heat exchange tube is a heat exchange tube with a rectangular cross section, so that the heat exchange area can be increased, the length of the heat exchange tube in the expansion direction of the corrugated isolation sleeve can be reduced, the whole volume of the equation heat exchange assembly is further reduced, and the heat exchange tube has attractive appearance and practicability.
The wind receiving plate is provided with a concave shape from the periphery to the center, so that when the wind receiving plate receives wind at the head-on, the wind receiving plate has the function of concentrating wind force towards the center, the driving force of the wind receiving plate on the corrugated isolation sleeve is enhanced, and the stability of wind force driving is enhanced.
The small-aperture vent pipe is a disk-shaped bent small-aperture vent pipe, so that the pipe diameter is not required to be too small, effective resistance can be formed on air flow, air exchange efficiency is reduced, and the problem that the small-aperture vent pipe with too small aperture is easy to block is effectively solved.
The side wall of the heat exchange tube is provided with a heat exchange vent hole, the inside of the metal heat exchange plate is provided with a heat exchange auxiliary groove, the heat exchange tube, the heat exchange vent hole and the heat exchange auxiliary groove are mutually communicated, one end of the outer side wall of the metal heat exchange plate, which is close to the heat exchange tube, is fixedly connected with a connecting sheet, which is fixedly connected with the heat exchange tube by using a fixing screw, so that the metal heat exchange plate is damaged, and can be quickly disassembled and replaced, a plurality of spoilers are alternately fixed in the heat exchange auxiliary groove, so that the airflow velocity in the heat exchange auxiliary groove can be disturbed, the flow period of high-speed airflow in the heat exchange tube flowing through the inside of the heat exchange auxiliary groove is reduced, the resistance of the heat exchange auxiliary groove to the airflow in the heat exchange tube is reduced, the airflow in the heat exchange tube is smooth, the cooling efficiency of the inner space of the corrugated isolation sleeve is improved, a ventilating square tube is fixedly installed at one end of the heat exchange vent hole, which is close to the metal heat exchange plate, the inner wall of the ventilation square tube is far away from one end of the heat exchange vent hole and is rotationally provided with a sealing sheet by utilizing a spring rotating shaft, the sealing sheet is overlapped with the plane where the opening of the ventilation square tube is positioned under the action of no external force, the ventilation square tube can be blocked, the heat exchange auxiliary groove and the heat exchange tube can not exchange gas, the heat exchange vent hole can be kept closed under the state of no installation of the metal heat exchange plates, the air flow inside the heat exchange tube can not be disturbed, further, the independent disassembly of each metal heat exchange plate can be realized, the maintenance and the replacement can be carried out, the normal use of other metal heat exchange plates can not be disturbed, the inner side wall of each metal heat exchange plate is fixedly provided with a supporting piece, one end of the supporting piece far away from the inner side wall of each metal heat exchange plate is fixedly provided with a reaming sheet, the reaming sheet can push the sealing sheet to rotate when the metal heat exchange vent hole is close to the installation process, the heat exchange vent hole is communicated with the heat exchange tube and the heat exchange auxiliary groove again, and after the metal heat exchange plate is disassembled, the sealing plate plugs the ventilation square tube again for sealing under the deformation recovery acting force of the spring rotating shaft.
Compared with the prior art, the utility model has the beneficial effects that:
the utility model is provided with the partial discharge detection device which is in signal connection with the remote monitoring equipment, so that the real-time monitoring of the partial discharge is realized, the chassis drying component is utilized to ensure that the partial discharge detection device is not affected by moist air, the maintenance period of the partial discharge detection device is prolonged, and the detection stability of the partial discharge detection device is improved;
the dustproof heat exchange component can realize the function of cooling the inner part of the protective cabinet body in an air internal circulation mode by means of external air, and has good dustproof effect in the air internal circulation mode;
the utility model adopts the mode that the air subjected to twice cooling exchanges heat with the high-voltage ring main unit, so that the effective heat dissipation effect of the high-voltage ring main unit is realized, no external dust is carried into the protective cabinet body by wind power in the whole heat dissipation process, and no extra energy is consumed;
according to the utility model, the horn-shaped first air collecting pipe is designed, so that external air can flow in the heat exchange pipe rapidly, the continuous temperature difference between the inside of the corrugated isolation sleeve and the inside of the heat exchange pipe is improved, and the heat exchange efficiency is enhanced;
the utility model designs the oblique flow guide assembly to form negative pressure suction to the air in the heat exchange tube, thereby further enhancing the smoothness of the air circulation in the heat exchange tube and enhancing the heat exchange efficiency;
according to the utility model, each metal heat exchange plate can be independently disassembled and overhauled, and the normal use of other parts is not influenced.
Drawings
FIG. 1 is a schematic diagram of the overall structure of a front oblique view of a high-voltage ring main unit with a partial discharge on-line monitoring function;
FIG. 2 is a schematic diagram of the overall structure of a side-oblique view of the high-voltage ring main unit with the partial discharge on-line monitoring function;
FIG. 3 is an enlarged schematic view of the area A in FIG. 2 of the high-voltage ring main unit with the partial discharge on-line monitoring function;
fig. 4 is a schematic diagram of a top view structure of an air duct area of the high-voltage ring main unit with the partial discharge on-line monitoring function;
FIG. 5 is a schematic diagram of a cross-sectional top view of a metal heat exchanger plate area of a high-voltage ring main unit with a partial discharge on-line monitoring function;
FIG. 6 is an enlarged schematic view of the area B in FIG. 5 of the high-voltage ring main unit with the partial discharge on-line monitoring function according to the present utility model;
FIG. 7 is a schematic diagram of a top-down oblique view of a support chassis of the high-voltage ring main unit with a partial discharge on-line monitoring function;
fig. 8 is a schematic diagram of a structure of a bottom oblique view of a supporting chassis of the high-voltage ring main unit with the partial discharge on-line monitoring function.
Reference numerals in the drawings: 101. a protective cabinet body; 102. a high voltage ring network cabinet; 103. a cabinet door; 111. a support chassis; 112. a support frame groove; 113. a ventilation channel; 114. a fan exhaust hole; 115. an air inlet hole of the air channel; 201. a mounting plate; 202. a corrugated spacer sleeve; 203. a wind receiving plate; 204. a small aperture vent pipe; 205. a heat exchange tube; 301. a metal heat exchange plate; 401. a light spring; 501. a first air collecting pipe; 601. an air guide pipe; 602. a mounting bracket; 603. a second air collecting pipe; 701. a heat exchange vent hole; 702. a heat exchange auxiliary groove; 703. a connecting sheet; 704. a fixing screw; 705. a spoiler; 711. a ventilation square tube; 712. a spring rotating shaft; 713. a sealing sheet; 714. a support; 715. and (5) reaming the sheet.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Examples: as shown in fig. 1-6, the high-voltage ring main unit with the partial discharge on-line monitoring function comprises a protection cabinet body 101, a high-voltage ring main unit 102 arranged in the protection cabinet body 101, a cabinet door 103 arranged on one side of an opening of the protection cabinet body 101, a partial discharge detection device capable of detecting discharge current of a grounding copper braid belt, a dustproof heat exchange component, a chassis drying component capable of drying the surrounding environment of the partial discharge detection device, and a supporting frame groove 112 arranged on the top end of the inner side wall of the supporting frame 111, wherein the supporting frame groove 112 is used for supporting the protection cabinet body 101 by the supporting frame groove 112, the air exchange channel 113 is formed in the bottom end of the side wall of the supporting underframe 111 in a penetrating mode, the air exchange channel 113 can exchange air inside and outside the supporting underframe 111, the fan exhaust hole 114 is formed in the inner side wall of the supporting underframe 111, the air channel is formed in the side wall of the supporting underframe 111, a fan is arranged in the air channel, the fan exhaust hole 114 is communicated with the fan exhaust hole 114, the air channel air inlet 115 is formed in the top surface of the air exchange channel 113, the air channel air inlet 115 is far away from one end of the air exchange channel 113 and is communicated with the air channel, the fan sucks air through the air channel air inlet 115, and then wind drying blowing is carried out on the inner space of the supporting underframe 111, the air channel air inlet 115 is formed in the top surface of the air exchange channel 113, the fan sucking rainwater in the rainwater weather can be avoided, the drying effect of the inner space of the supporting underframe 111 is improved, the underframe drying assembly can always maintain the drying of the space below the protective cabinet body 101, the rainwater is prevented from accumulating, stratum moisture evaporates to enable the protective cabinet body 101 to be affected by humid air, meanwhile, the local discharge detection device can be prevented from being affected by humid air, the maintenance period of the local discharge detection device is prolonged, the detection stability of the local discharge detection device is improved, the dustproof heat exchange component can realize the function of cooling the interior of the protective cabinet body 101 in an air internal circulation mode by means of external air, the dustproof heat exchange component has good dustproof effect in an air internal circulation mode, the dustproof heat exchange component comprises a mounting plate 201 mounted on the side wall of the protective cabinet body 101, a ripple isolation sleeve 202 is fixedly mounted on one side of the mounting plate 201 away from the protective cabinet body 101, the ripple isolation sleeve 202 can shrink and stretch by utilizing the ripple shape of the ripple isolation sleeve 202, a wind receiving plate 203 is mounted on one side of the ripple isolation sleeve 202 away from the mounting plate 201 in a sealing way, a small-aperture vent pipe 204 is fixedly mounted on the surface of the mounting plate 201, the two ends of the small-aperture vent pipe 204 are respectively communicated with the inner space of the corrugated isolation sleeve 202 and the inner space of the protective cabinet body 101, the ventilation speed between the protective cabinet body 101 and the corrugated isolation sleeve 202 is slow by utilizing the small-aperture vent pipe 204, the heat exchange pipe 205 is fixedly arranged on the plate surface of the mounting plate 201, the two ends of the heat exchange pipe 205 penetrate through the side wall of the corrugated isolation sleeve 202 and then extend to the outside, the outer side wall of the heat exchange pipe 205 is sealed and attached with the side wall of the corrugated isolation sleeve 202, the outside air circulates in the heat exchange pipe 205, the side wall of the heat exchange pipe 205 exchanges heat with the air in the corrugated isolation sleeve 202 to reduce the temperature of the inner space of the corrugated isolation sleeve 202, the air circulation between the inner space of the protective cabinet body 101 and the inner space of the corrugated isolation sleeve 202 is further utilized to reduce the air temperature in the protective cabinet body 101, according to the common wind direction environment of an outdoor site, the wind receiving plate 203 is arranged in the windward direction, the corrugated isolation sleeve 202 is compressed and contracted, the air pressure in the inner space of the corrugated isolation sleeve 202 is increased, the air temperature is increased, the high air pressure enables the air in the corrugated isolation sleeve 202 to slowly circulate to the inside of the protective cabinet body 101 through the small-aperture ventilating pipe 204, in the process, under the effect of increasing the temperature difference, the heat exchange efficiency of the air in the corrugated isolation sleeve 202 and the outside air is enhanced by means of the heat exchange pipe 205, the air in the corrugated isolation sleeve 202 slowly circulates to the inside of the protective cabinet body 101 while being cooled, the cooled high-pressure air in the corrugated isolation sleeve 202 is injected into the inside of the protective cabinet body 101 by using the small-aperture ventilating pipe 204, the air entering the inside of the protective cabinet body 101 is rapidly depressurized, the temperature is reduced, the second cooling of the air is achieved, the air subjected to cooling twice exchanges heat with the high-pressure ring net cabinet 102, the effective heat dissipation effect of the high-pressure net cabinet 102 is achieved, and no outside dust is carried into the inside of the protective cabinet body 101 by wind power, and no extra energy is consumed.
The metal heat exchange plate 301 is installed on the surface of the heat exchange tube 205, so that the heat exchange efficiency of the heat exchange tube 205 can be enhanced.
The mounting panel 201 is close to and receives aerofoil 203 one side and utilizes light spring 401 and receives aerofoil 203 elastic connection, receives the aerofoil 203 that wind-force promoted after losing the wind-force and promotes, under the deformation restoring effort of light spring 401, can high-efficient resume initial position to the circulation is continuous cooling down, and can absorb a small amount of the inside air of the protection cabinet body 101 in the recovery process, and the inside air of the protection cabinet body 101 obtains the replenishment from cabinet door 103 gap, is windless state this moment, and the raise dust is few, can supplement and inhale clean air, and the protection cabinet body 101 discharges partial hot air, inhales supplementary cold air, further realizes the cooling effect.
One end of the heat exchange tube 205 is fixedly communicated with a horn-shaped first air collection tube 501, the horn mouth of the first air collection tube 501 faces the wind direction, so that external air can rapidly circulate in the heat exchange tube 205, the continuous temperature difference between the inside of the corrugated isolation sleeve 202 and the inside of the heat exchange tube 205 is improved, and the heat exchange efficiency is enhanced.
The air conditioner further comprises an inclined flow guide component for enhancing the air flow rate inside the heat exchange tube 205, the inclined flow guide component comprises an air guide pipe 601, a mounting bracket 602 and a second air collecting pipe 603, the air guide pipe 601 is fixedly mounted on the rear wall of the protective cabinet body 101 through the mounting bracket 602, the inner space of the air guide pipe 601 is mutually communicated with the inner space of the heat exchange tube 205, the second air collecting pipe 603 playing a role in collecting air is fixedly mounted on one end of the air guide pipe 601 close to the wind direction, the air flows fast in the air guide pipe 601 through the second air collecting pipe 603 to form negative pressure attraction, the air inside the heat exchange tube 205 flows inside the air guide pipe 601, the smoothness of the air circulation inside the heat exchange tube 205 is further enhanced, and the heat exchange efficiency is enhanced.
One end of the air guide pipe 601, which is close to the second air collection pipe 603, is inclined to the side wall of the corrugated isolation sleeve 202, so that the risk that air in the air guide pipe 601 is poured into the heat exchange pipe 205 is reduced, and the smoothness of air circulation in the heat exchange pipe 205 is ensured.
The heat exchange tube 205 is a heat exchange tube 205 with a rectangular cross section, so that the heat exchange area can be increased, the length of the heat exchange tube 205 in the expansion and contraction direction of the corrugated isolation sleeve 202 can be reduced, the whole volume of the equation heat exchange assembly can be further reduced, and the equation heat exchange assembly is attractive and practical.
The wind receiving plate 203 is a wind receiving plate 203 with a concave shape from the periphery to the center, so that when the wind receiving plate 203 receives wind at the face, the wind receiving plate has the function of concentrating wind force towards the center, the pushing force of the wind receiving plate 203 to the corrugated isolation sleeve 202 is enhanced, and the stability of wind force pushing is enhanced.
The small-aperture vent pipe 204 is a disc-shaped bent small-aperture vent pipe 204, so that the pipe diameter is not required to be too small, effective resistance can be formed on air flow, the air exchange efficiency is reduced, and the problem that the small-aperture vent pipe 204 with too small aperture is easy to block is effectively solved.
The side wall of the heat exchange tube 205 is provided with heat exchange vent holes 701, the inside of the metal heat exchange plate 301 is provided with heat exchange auxiliary grooves 702, the heat exchange tube 205, the heat exchange vent holes 701 and the heat exchange auxiliary grooves 702 are mutually communicated, one end of the outer side wall of the metal heat exchange plate 301 close to the heat exchange tube 205 is fixedly provided with connecting sheets 703, the connecting sheets 703 are fixedly connected with the heat exchange tube 205 by using fixing screws 704, so that the metal heat exchange plate 301 is damaged, the heat exchange auxiliary grooves 702 can be quickly assembled and disassembled for replacement, a plurality of spoilers 705 are fixedly arranged in the heat exchange auxiliary grooves 702 in a staggered manner, the airflow velocity in the heat exchange auxiliary grooves 702 can be disturbed, the flow period of high-speed airflow in the heat exchange tube 205 flowing through the heat exchange auxiliary grooves 702 is reduced, the resistance of the heat exchange auxiliary grooves 702 to the airflow in the heat exchange tube 205 is reduced, the airflow in the heat exchange tube 205 is smooth, the cooling efficiency of the inner space of the corrugated isolation sleeve 202 is improved, one end of the heat exchange vent holes 701 close to the metal heat exchange plate 301 is fixedly provided with ventilation square tubes 711, the inner wall of the ventilation square pipe 711 is provided with a sealing piece 713 by utilizing a spring rotating shaft 712 to rotate at one end far away from the heat exchange vent 701, the sealing piece 713 is overlapped with the plane where the opening of the ventilation square pipe 711 is positioned under the action of no external force, the ventilation square pipe 711 can be blocked, the heat exchange auxiliary groove 702 and the heat exchange pipe 205 can not exchange gas, the heat exchange vent 701 can be kept closed in the state of no installation of the metal heat exchange plates 301, the air flow inside the heat exchange pipe 205 can not be disturbed, further, the independent disassembly, maintenance and replacement of each metal heat exchange plate 301 can be realized, the normal use of other metal heat exchange plates 301 is not disturbed, the inner side wall of the metal heat exchange plate 301 is fixedly provided with a supporting piece 714, one end of the supporting piece 714 far away from the inner side wall of the metal heat exchange plate 301 is fixedly provided with a reaming piece 715, and the metal heat exchange plate 301 is close to the heat exchange vent 701 for installation, the reaming sheet 715 can rotate against the movable sealing sheet 713, so that the heat exchange vent holes 701 are communicated with the heat exchange tubes 205 and the heat exchange auxiliary groove 702 again, and after the metal heat exchange sheet 301 is disassembled, the sealing sheet 713 plugs the vent square tubes 711 again under the deformation recovery acting force of the spring rotating shaft 712 to seal.
It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (10)
1. High-voltage ring main unit with partial discharge on-line monitoring function, including the protection cabinet body (101) and install at the inside high-voltage ring net cabinet (102) of protection cabinet body (101), cabinet door (103), its characterized in that are installed to protection cabinet body (101) opening one side: the device is characterized by further comprising a partial discharge detection device capable of detecting discharge current of the grounded copper braid belt and a dustproof heat exchange component, wherein the partial discharge detection device is in signal connection with remote monitoring equipment to realize real-time monitoring, the device further comprises a chassis drying component capable of drying surrounding environments of the partial discharge detection device, the chassis drying component comprises a supporting chassis (111), a supporting frame groove (112), a ventilation channel (113), a fan exhaust hole (114), a fan air inlet hole (115), the supporting frame groove (112) is formed in the top end of the inner side wall of the supporting chassis (111), the supporting chassis (111) supports the protective cabinet body (101) by utilizing the supporting frame groove (112), the ventilation channel (113) is formed in the bottom end of the side wall of the supporting chassis (111) in a penetrating mode, the ventilation channel (113) can exchange air inside and outside the supporting chassis (111), a fan hole (114) is formed in the inner side wall of the supporting chassis (111), a fan is mounted in the fan exhaust hole (114), the fan air inlet hole is communicated with the fan exhaust hole (114), the top surface channel (113) is provided with the ventilation channel (115), the fan air inlet hole is far away from the inner side wall of the supporting chassis (115), the fan air channel (115) is communicated with the air inlet hole (115), the under frame drying assembly can always maintain the drying of the space below the protective cabinet body (101), the dustproof heat exchange assembly can realize the function of cooling the inside of the protective cabinet body (101) by means of external wind in an air internal circulation mode, the dustproof heat exchange assembly comprises a mounting plate (201) arranged on the side wall of the protective cabinet body (101), the mounting plate (201) is far away from the side of the protective cabinet body (101) and fixedly provided with a corrugated isolation sleeve (202), the corrugated isolation sleeve (202) can shrink and stretch by utilizing the corrugated shape of the mounting plate, the side of the corrugated isolation sleeve (202) far away from the mounting plate (201) is hermetically provided with a wind receiving plate (203), the two ends of the small-aperture vent pipe (204) are respectively communicated with the inner space of the corrugated isolation sleeve (202) and the inner space of the protective cabinet body (101), the ventilation speed of the protective cabinet body (101) is slow by utilizing the small-aperture vent pipe (204), the side surface of the mounting plate (201) is fixedly provided with a heat exchange tube (205), two ends of the heat exchange tube (205) penetrate through the side wall of the corrugated isolation sleeve (202) and then extend to the side wall of the corrugated isolation sleeve (205) to the side wall of the heat exchange tube (205) and the outside air is sealed and the outside air is adhered to the side wall of the heat exchange tube (202), and heat exchange is carried out by utilizing the side wall of the heat exchange tube (205) and the air in the corrugated isolation sleeve (202).
2. The high-voltage ring main unit with partial discharge on-line monitoring function according to claim 1, wherein: the metal heat exchange plates (301) are arranged on the surface of the heat exchange tube (205), so that the heat exchange efficiency of the heat exchange tube (205) can be enhanced.
3. The high-voltage ring main unit with partial discharge on-line monitoring function according to claim 1, wherein: the mounting plate (201) is connected with the air receiving plate (203) by a light spring (401) at one side close to the air receiving plate (203), and the air receiving plate (203) pushed by wind force can be efficiently restored to the initial position under the deformation restoring acting force of the light spring (401) after losing the pushing of the wind force.
4. The high-voltage ring main unit with partial discharge on-line monitoring function according to claim 1, wherein: one end of the heat exchange tube (205) is fixedly communicated with a horn-shaped first air collecting tube (501), and the horn mouth of the first air collecting tube (501) faces the wind direction, so that external wind can rapidly circulate in the heat exchange tube (205).
5. The high-voltage ring main unit with the partial discharge on-line monitoring function according to claim 4, wherein: the air conditioner is characterized by further comprising an inclined flow guide component for enhancing the flow rate of air inside the heat exchange tube (205), the inclined flow guide component comprises an air guide tube (601), a mounting bracket (602) and a second air collecting tube (603), the air guide tube (601) is fixedly mounted on the rear wall of the protective cabinet body (101) through the mounting bracket (602), the inner space of the air guide tube (601) is mutually communicated with the inner space of the heat exchange tube (205), the second air collecting tube (603) playing a role in collecting air is fixedly mounted on one end of the air guide tube (601) close to the wind direction, and the air flows fast in the air guide tube (601) through the second air collecting tube (603) to form negative pressure suction, and the air inside the heat exchange tube (205) flows inside the air guide tube (601).
6. The high-voltage ring main unit with partial discharge on-line monitoring function according to claim 5, wherein: one end of the air guide pipe (601) close to the second air collecting pipe (603) is inclined to the side wall of the corrugated isolation sleeve (202).
7. The high-voltage ring main unit with partial discharge on-line monitoring function according to claim 1, wherein: the heat exchange tube (205) is a heat exchange tube (205) with a rectangular section, so that the heat exchange area can be increased, and the length of the heat exchange tube (205) in the expansion and contraction direction of the corrugated isolation sleeve (202) can be reduced.
8. The high-voltage ring main unit with partial discharge on-line monitoring function according to claim 1, wherein: the air receiving plate (203) is an air receiving plate (203) with a shape recessed from the periphery to the center.
9. The high-voltage ring main unit with partial discharge on-line monitoring function according to claim 1, wherein: the small-aperture vent pipe (204) is a small-aperture vent pipe (204) which is bent in a disc shape.
10. The high-voltage ring main unit with the partial discharge on-line monitoring function according to claim 2, wherein: the heat exchange tube comprises a heat exchange tube body and is characterized in that a heat exchange vent hole (701) is formed in the side wall of the heat exchange tube body, a heat exchange auxiliary groove (702) is formed in the metal heat exchange plate body (301), the heat exchange tube body (205), the heat exchange vent hole (701) and the heat exchange auxiliary groove (702) are mutually communicated, a connecting sheet (703) is fixedly arranged on the outer side wall of the metal heat exchange plate body, which is close to one end of the heat exchange tube body (205), a fixing screw (704) is used for fixing the heat exchange tube body (205), a plurality of spoiler sheets (705) are fixedly arranged in the heat exchange auxiliary groove (702), a ventilating square tube (711) is fixedly arranged on the inner side wall of the heat exchange vent hole (701), a sealing sheet (713) is rotatably arranged on one end of the ventilating square tube body (711) away from the heat exchange vent hole (301) through a spring rotating shaft (712), the sealing sheet (713) is overlapped with a plane where an opening of the ventilating square tube body (711) is located under the action of no external force, the ventilating square tube (711) can be blocked, a supporting piece (714) is fixedly arranged on the inner side wall of the metal heat exchange plate body (301), one end is far away from the metal heat exchange plate body (301), and the ventilating hole (715) is fixedly arranged.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310503440.8A CN116780356B (en) | 2023-05-06 | 2023-05-06 | High-voltage ring main unit with partial discharge on-line monitoring function |
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| CN202310503440.8A CN116780356B (en) | 2023-05-06 | 2023-05-06 | High-voltage ring main unit with partial discharge on-line monitoring function |
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| CN116780356A CN116780356A (en) | 2023-09-19 |
| CN116780356B true CN116780356B (en) | 2024-01-23 |
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| CN202310503440.8A Active CN116780356B (en) | 2023-05-06 | 2023-05-06 | High-voltage ring main unit with partial discharge on-line monitoring function |
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| CN115498777A (en) * | 2022-10-26 | 2022-12-20 | 深圳市弘新精密工业有限公司 | Heat exchange temperature control assembly for new energy power storage case |
| CN115864156A (en) * | 2023-02-21 | 2023-03-28 | 山东厚俞实业有限公司 | Medium-voltage switchgear based on dampproofing processing |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN210693198U (en) * | 2019-10-26 | 2020-06-05 | 江苏亿龙电气有限公司 | Heat dissipation device applied to switch cabinet |
| CN210744576U (en) * | 2019-12-06 | 2020-06-12 | 江苏欧普电力科技有限公司 | Low-voltage electric appliance cabinet with circulating heat dissipation function |
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| CN116780356A (en) | 2023-09-19 |
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