CN113131376B - Full-insulation full-sealing alternating-current metal-enclosed fixed switch cabinet - Google Patents
Full-insulation full-sealing alternating-current metal-enclosed fixed switch cabinet Download PDFInfo
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- CN113131376B CN113131376B CN202110452293.7A CN202110452293A CN113131376B CN 113131376 B CN113131376 B CN 113131376B CN 202110452293 A CN202110452293 A CN 202110452293A CN 113131376 B CN113131376 B CN 113131376B
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- 238000009413 insulation Methods 0.000 title claims abstract description 80
- 238000007789 sealing Methods 0.000 title claims description 20
- 238000001816 cooling Methods 0.000 claims abstract description 117
- 239000007787 solid Substances 0.000 claims abstract description 39
- 238000005192 partition Methods 0.000 claims abstract description 32
- 230000000694 effects Effects 0.000 claims abstract description 16
- 239000007788 liquid Substances 0.000 claims description 45
- 230000001502 supplementing effect Effects 0.000 claims description 16
- 239000002184 metal Substances 0.000 claims description 12
- 238000000034 method Methods 0.000 claims description 8
- 238000007664 blowing Methods 0.000 claims description 7
- 230000009471 action Effects 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 238000013475 authorization Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 210000003437 trachea Anatomy 0.000 description 1
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/56—Cooling; Ventilation
- H02B1/565—Cooling; Ventilation for cabinets
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/28—Casings; Parts thereof or accessories therefor dustproof, splashproof, drip-proof, waterproof or flameproof
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/54—Anti-seismic devices or installations
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B13/00—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle
- H02B13/02—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle with metal casing
- H02B13/035—Gas-insulated switchgear
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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
- H02B13/02—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle with metal casing
- H02B13/035—Gas-insulated switchgear
- H02B13/045—Details of casing, e.g. gas tightness
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
- Devices That Are Associated With Refrigeration Equipment (AREA)
Abstract
The invention discloses a fully-insulated fully-sealed alternating-current metal-enclosed fixed switch cabinet which comprises a cabinet body, wherein a first partition plate and a second partition plate are transversely arranged in the cabinet body from top to bottom in sequence, the first partition plate and the second partition plate divide the cabinet body into a cooling bin, a switch bin and an electric bin which are arranged up and down, a third partition plate is vertically arranged between the first partition plate and the second partition plate, the third partition plate divides the switch bin into a gas insulation cabinet and a solid insulation cabinet which are arranged left and right, the switch cabinet also comprises a cooling assembly, a gas control assembly is arranged in the electric bin, a controller is arranged on a cabinet door, and the cooling assembly comprises a gas cooling assembly and an in-cabinet cooling assembly. The air cooling device is provided with the air cooling component, air blown out by the air pump enters the transverse pipe through the air inlet pipe after passing through the buffer tank and is finally discharged from the right end of the transverse pipe, and hot air in the transverse pipe is blown out to cool the transverse pipe, so that the temperature of the air pipe in contact with the outer side of the transverse pipe is reduced, and the effect of cooling the air in the air pipe is achieved.
Description
Technical Field
The invention relates to the technical field of switch cabinets, in particular to a full-insulation full-sealing alternating-current metal-enclosed fixed switch cabinet.
Background
A switchgear is an electrical device often used in an electrical power system. For example, a patent with the authorization number of CN204577973 discloses a solid fully-insulated load switch cabinet, which comprises a shell and a cabinet door, wherein a load switch, an isolating switch and an operating mechanism are installed inside the shell, the isolating switch and the load switch are sequentially connected, the operating mechanism is connected with the load switch and the isolating switch, the load switch is a solid-sealed vacuum load switch, and the isolating switch is a solid-sealed isolating switch. However, the device is only cooled down by connecting the external oil cooling device, the cooling mode is single, and when external oil cooling equipment is lacked, the device can not effectively cool down and has poor adaptability.
Disclosure of Invention
The invention aims to provide a fully-insulated fully-sealed alternating-current metal closed fixed switch cabinet which is provided with an airtight cabinet and a solid airtight cabinet, is convenient to use, and has stronger adaptability by cooling the interior of the cabinet body through a cooling assembly arranged in the device, so as to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: a fully-insulated fully-sealed alternating-current metal-enclosed fixed switch cabinet comprises a cabinet body, wherein a first partition plate and a second partition plate are transversely arranged in the cabinet body from top to bottom in sequence, the first partition plate and the second partition plate divide the cabinet body into a cooling bin, a switch bin and an electrical bin which are arranged from top to bottom, a third partition plate is vertically arranged between the first partition plate and the second partition plate, the third partition plate divides the switch bin into a gas insulation cabinet and a solid insulation cabinet which are arranged from left to right, the fully-insulated fully-sealed alternating-current metal-enclosed fixed switch cabinet also comprises a cooling assembly, a gas control assembly is arranged in the electrical bin, a cabinet door is hinged outside the solid insulation cabinet, a controller is arranged on the cabinet door, and the cooling assembly comprises a gas cooling assembly and an in-cabinet cooling assembly;
the gas cooling assembly comprises a transverse pipe, a gas pipe, a fan, a buffer tank, a gas inlet pipe, a first electromagnetic valve, a liquid cooling pipe and a second electromagnetic valve, the transverse pipe is transversely arranged in a cooling bin, the left end of the transverse pipe is connected with the inner wall of a cabinet body, the right end of the transverse pipe penetrates through the cabinet body and extends to the outer side of the cabinet body, the gas pipe is uniformly wound on the surface of the transverse pipe, one end of the gas pipe penetrates through a first partition plate and is communicated with a gas insulation cabinet, the buffer tank is arranged on one side of the cabinet body, the gas inlet pipe is communicated with the buffer tank, one end of the gas inlet pipe penetrates through the side wall of the cabinet body and extends into the transverse pipe, the fan is arranged on the upper portion of the buffer tank, the air outlet end of the fan is communicated with the buffer tank, the first electromagnetic valve is arranged on the right side end of the transverse pipe, the liquid cooling pipe is arranged on one side, close to the first electromagnetic valve, the liquid cooling pipe is communicated with the transverse pipe, the second electromagnetic valve is connected with the gas pipe, and a seventh electromagnetic valve is connected on the liquid cooling pipe, the first electromagnetic valve, the second electromagnetic valve, the seventh electromagnetic valve and the fan are respectively electrically connected with the controller;
the gas control assembly comprises a delivery pump, a gas tank for storing SF6 gas, a gas supplementing pipe, a circulating gas pipe, a fourth electromagnetic valve, a fifth electromagnetic valve, a first air pressure sensor and a second air pressure sensor, wherein the delivery pump and the gas tank are respectively arranged on two sides in the electrical cabin, the gas inlet end of the delivery pump is respectively communicated with the gas supplementing pipe and the circulating gas pipe, the delivery pump head is communicated with the gas tank through the gas supplementing pipe, the fourth electromagnetic valve and the fifth electromagnetic valve are respectively arranged on the gas supplementing pipe and the circulating gas pipe, one end, far away from the delivery pump, of the circulating gas pipe penetrates through a third partition plate and extends upwards into a cooling cabin in the third partition plate to be communicated with the gas pipe, the first air pressure sensor is arranged in the gas tank, the second air pressure sensor is arranged in the gas insulation cabinet, and the fourth electromagnetic valve, the fifth electromagnetic valve, the first air pressure sensor and the second air pressure sensor are electrically connected with a controller;
the cooling assembly in the cabinet comprises 2 vortex tubes, 2 electromagnetic valves III, 2 connecting pipes, an inflation tube, an air feeding tube, a sixth electromagnetic valve, a first temperature sensor and a second temperature sensor which are respectively arranged in a gas insulation cabinet and a solid insulation cabinet, wherein the vortex tubes are connected with a circulating air tube through the corresponding connecting pipes;
the cooling bin is hinged with a cooling bin door matched with the cooling bin, and a sealing strip is arranged on the inner side of the cooling bin door.
Preferably, the gas insulated cabinet is of a sealing structure, a first observation window is arranged on the surface of one side of the gas insulated cabinet, and a second observation window is arranged on the cabinet door.
Preferably, the gas insulation cabinet is provided with a plurality of first mounting plates, and the solid insulation cabinet is internally provided with a second mounting plate for mounting the solid-sealed isolating switch.
Preferably, a liquid level window is arranged on the surface of one side of the buffer tank.
Preferably, a sealing plate is vertically arranged in the electric bin.
Preferably, the method for cooling the interior of the cabinet body comprises the following specific steps:
step 1, detecting a gas insulation cabinet and a solid respectively by a first temperature sensor and a second temperature sensor
The detected temperature information of the temperature in the insulation cabinet is transmitted to the controller;
step 2, when the temperature in the gas insulation cabinet is too high, the controller starts the delivery pump, the second electromagnetic valve and the fifth electromagnetic valve, SF6 gas in the gas insulation cabinet enters the delivery pump from the gas pipe through the circulating gas pipe and then enters the gas insulation cabinet again, and circulation of SF6 gas is achieved;
step 3, if the temperature is not reduced after the step 2, the controller controls the fan and the electromagnetic valve to start while the operation of the step 2 is continuously carried out, the horizontal pipe is cooled in a mode of blowing air into the horizontal pipe, and the air pipe is cooled through the horizontal pipe, so that the effect of cooling the gas in the air pipe is achieved, and finally the air insulation cabinet is cooled;
step 4, when the temperature does not reach the requirement after the step 3, opening a third electromagnetic valve in the gas insulation cabinet through the controller, blowing cold air into the gas insulation cabinet through the vortex tube so as to cool the gas insulation cabinet, and simultaneously opening a corresponding third electromagnetic valve in the solid insulation cabinet through the controller so as to cool the inside of the solid insulation cabinet, thereby improving the cooling effect;
and 5, connecting an external liquid cooling device through a liquid cooling pipe, and then repeating the step 2 and the step 4, so that the device is convenient to use under the condition that the liquid cooling device is available.
Compared with the prior art, the invention has the beneficial effects that:
1. the gas insulation device has the advantages that the delivery pump is controlled to be started, the electromagnetic valve IV is opened simultaneously, so that the gas in the gas tank can be input into the gas insulation cabinet to inflate the gas insulation cabinet, SF6 gas is stored in the gas tank, the gas insulation effect is achieved, the gas pressure in the gas tank is detected through the gas pressure sensor I, and when the gas pressure in the gas tank is too low, the electric bin door is opened, so that a user can conveniently replace a new gas tank;
2. the invention is also provided with the vortex tube which is connected with the circulating tube through the vortex tube, and the high-temperature gas in the cabinet is used as a gas source of the vortex tube to cool the interior of the cabinet body, so that the cooling effect is good, and the energy is saved;
3. the air cooling device is also provided with an air cooling component, air blown out by the air pump enters the transverse pipe through the air inlet pipe after passing through the buffer tank and is finally discharged from the right end of the transverse pipe, and the air pipe is wound on the outer side of the transverse pipe, so that the transverse pipe is cooled by blowing out hot air in the transverse pipe, the temperature of the air pipe in contact with the outer side of the transverse pipe is reduced, and the effect of cooling the air in the air pipe is achieved;
4. the liquid cooling device is also provided with a liquid cooling pipe which is connected with an external liquid cooling device through the liquid cooling pipe, liquid is added into the transverse pipe, when the liquid can be observed through the liquid window, the liquid enters the buffer box, and the liquid adding can be stopped by closing the electromagnetic valve seven at the moment, so that the cooling effect of the transverse pipe can be improved.
Drawings
FIG. 1 is a sectional view of a front view structure of a fully-insulated and fully-sealed AC metal-enclosed fixed switch cabinet according to the present invention;
FIG. 2 is a front view of the external structure of a fully insulated and sealed AC metal enclosed stationary switchgear of the present invention;
FIG. 3 is a left side schematic view of a fully insulated and fully sealed AC metal enclosed stationary switchgear according to the present invention;
FIG. 4 is a schematic diagram of a right side structure of a fully insulated and fully sealed AC metal enclosed stationary switchgear of the present invention;
FIG. 5 is an enlarged view of the structure at A in FIG. 1 according to the present invention.
In the figure: a cabinet 100; a first partition plate 101; a second partition plate 102; a third partition 103; a cooling bin 1001; a switch cabin 1002; an electrical compartment 1003; a cooling assembly 104; a gas insulated cabinet 10021; solid insulation cabinet 10022; a gas control assembly 105; a cabinet door 106; a controller 107; a gas cooling assembly 1071; an in-cabinet cooling assembly 1072; cross tube 10711; a gas pipe 10712; a fan 10713; a buffer tank 10714; an intake pipe 10715; a first solenoid valve 10716; a liquid cooling pipe 10717; a second solenoid valve 10718; mounting plate one 108; a second mounting plate 109; a sealing plate 110; a transfer pump 1051; an air tank 1052; a gas supply tube 1053; a circulating gas pipe 1054; solenoid valve four 1055; solenoid valve five 1056; a first air pressure sensor 1057; a second air pressure sensor 1058; a vortex tube 10721; a third solenoid valve 10722; a connecting pipe 10723; a gas-filled tube 10724; a gas-filling pipe 10725; solenoid valve six 10726; a first temperature sensor 10727; and a second temperature sensor 10728.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", etc. indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings, which are merely for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Example 1
Referring to fig. 1-5, the present invention provides a technical solution: the utility model provides a fixed cubical switchboard of full insulation totally enclosed interchange metal-enclosed, which comprises a cabinet body 100, inside from the top down of cabinet body 100 transversely installs baffle one 101 and baffle two 102 in proper order, baffle one 101 and baffle two 102 divide into the cooling bin 1001 of arranging from top to bottom with cabinet body 100, switch storehouse 1002 and electrical cabin 1003, vertically install baffle three 103 between baffle one 101 and the baffle two 102, baffle three 103 divide into the switch storehouse 1002 gas insulated cabinet 10021 and the solid insulated cabinet 10022 of arranging about, still include cooling module 104, install gas control module 105 in the electrical cabin 1003, solid insulated cabinet 10022 is outer to be articulated to have a cabinet door 106, install controller 107 on cabinet door 106, cooling module 104 includes gas cooling module 1071 and the interior cooling module 1072 of cabinet.
The gas cooling assembly 1071 comprises a transverse pipe 10711, a gas pipe 10712, a fan 10713, a buffer box 10714, a gas inlet pipe 10715, a first electromagnetic valve 10716, a liquid cooling pipe 10717 and a second electromagnetic valve 10718, the transverse pipe 10711 is transversely installed in a cooling bin 1001, the left end of the transverse pipe 10711 is connected with the inner wall of the cabinet 100, the right end of the transverse pipe 10711 penetrates through the cabinet 100 and extends to the outside of the cabinet 100, the gas pipe 10712 is uniformly wound on the surface of the transverse pipe 10711, one end of the gas pipe 10712 penetrates through a first partition 101 and is communicated with an air insulated cabinet 10021, the buffer box 10714 is installed at one side of the cabinet 100, the gas inlet pipe 10715 is communicated with the buffer box 10714, one end of the gas inlet pipe 10715 penetrates through the side wall of the cabinet 100 and extends into the transverse pipe 10711, the fan 10713 is installed at the upper part of the buffer box 10714, the right end of the first electromagnetic valve 10716 is installed at the right end part of the transverse pipe 10711, the liquid cooling pipe 10717 is installed at one side of the cabinet 100 close to the first electromagnetic valve 10716, the transverse pipe 10717 is communicated with the transverse pipe 10711, the second electromagnetic valve 10712, the liquid cooling pipe 10717 is connected with a seventh electromagnetic valve, and the first electromagnetic valve 10716, the second electromagnetic valve 10718, the seventh electromagnetic valve and the fan 10713 are respectively electrically connected with the controller 107.
A sealing plate 110 is vertically installed in the electric cabin 1003.
The gas control assembly 105 comprises a delivery pump 1051, a gas tank 1052 for storing SF6 gas, a gas supplementing pipe 1053, a circulating gas pipe 1054, a solenoid valve four 1055, a solenoid valve five 1056, a gas pressure sensor one 1057 and a gas pressure sensor two 1058, wherein the delivery pump 1051 and the gas tank 1052 are respectively arranged at two sides of a sealing plate 110 in an electric cabin 1003, the gas inlet end of the delivery pump 1051 is respectively communicated with the gas supplementing pipe 1053 and the circulating gas pipe 1054, one end of the gas supplementing pipe 1053 far away from the delivery pump 1051 penetrates through the sealing plate 110 to be communicated with the gas tank 1052, the solenoid valve four 1055 and the solenoid valve five 1056 are respectively arranged on the gas supplementing pipe 1053 and the circulating gas pipe 1054, one end of the circulating gas pipe 1054 far away from the delivery pump 1051 penetrates through a partition plate three 103 and upwards extends into a cooling cabin 1001 to be communicated with a gas pipe 10712, the gas pressure sensor one 1057 is arranged in the gas tank 1052, the gas pressure sensor two 1058 are arranged in a gas insulation cabinet 10021, the solenoid valve four 1055, the five 1056, the solenoid valve, The first air pressure sensor 1057 and the second air pressure sensor 1058 are electrically connected to the controller 107.
The in-cabinet cooling assembly 1072 includes 2 vortex tubes 10721, 2 solenoid valves three 10722, 2 connecting tubes 10723, gas filling tube 10724, gas filling tube 10725, solenoid valve six 10726, temperature sensor one 10727 and temperature sensor two 10728 which are respectively installed in the gas insulation cabinet 10021 and the solid insulation cabinet 10022, the connecting tube 10723 is connected with the corresponding vortex tube 10721, the solenoid valves three 10722 are respectively installed on the corresponding connecting tubes 10723, the temperature sensor one 10727 and the temperature sensor two 10728 are respectively installed in the gas insulation cabinet 10021 and the solid insulation cabinet 10022, the temperature sensor one 10727, the temperature sensor two 10728 and the solenoid valves three 10722 are respectively electrically connected with the controller 107, the upper end of the gas filling tube 10724 is communicated with the gas tube 10712, the lower end of the gas filling tube 10724 penetrates through the partition plate one 101 and extends into the solid insulation cabinet 10022, the gas in the gas filling tube 10712 can be guided into the solid insulation cabinet 10022 by the gas filling tube 10724 for cooling, the lower end of the gas filling tube 10725 is communicated with the gas outlet end of the transfer pump 1051, the upper end of the gas-filling pipe 10725 extends through the second partition 102 into the gas-insulated cabinet 10021.
The gas insulated cabinet 10021 is a sealed structure, a first observation window is installed on the surface of one side of the gas insulated cabinet 10021, and a second observation window is installed on the cabinet door 106.
The cooling bin 1001 is externally hinged with a cooling bin door matched with the cooling bin, one side of the electric bin 1003 corresponding to the air pump is hinged with an electric bin door, and sealing strips are arranged on the inner sides of the cooling bin door and the electric bin door.
The gas insulated cabinet 10021 is provided with a plurality of first mounting plates 108, and the solid insulated cabinet 10022 is internally provided with a second mounting plate 109 for mounting the solid-sealed isolating switch.
A liquid level window is installed on one side surface of the buffer tank 10714.
The method for cooling the interior of the cabinet by using the device comprises the following specific steps:
step 1, the first temperature sensor 10727 and the second temperature sensor 10728 detect the temperature inside the gas insulation cabinet 10021 and the solid insulation cabinet 10022 respectively, and the detected temperature information is transmitted to the controller 107;
step 2, when the temperature in the gas insulation cabinet 10021 is too high, the controller 107 starts the delivery pump 1051, the second solenoid valve 10718 and the fifth solenoid valve 1056, so that the SF6 gas in the gas insulation cabinet 10021 enters the delivery pump 1051 from the gas pipe 10712 through the circulating gas pipe 1054 and then enters the gas insulation cabinet 10021 again, thereby realizing the circulation of the SF6 gas;
step 3, if the temperature is not reduced after the step 2, the controller 107 controls the fan 10713 and the first electromagnetic valve 10716 to start while continuously performing the operation of the step 2, cools the horizontal pipe 10711 by blowing air into the horizontal pipe 10711, and cools the air pipe 10712 by the horizontal pipe 10711, so that the effect of cooling the gas in the air pipe 10712 is achieved, and finally the gas insulated cabinet 10021 is cooled;
step 4, when the temperature does not reach the requirement after the step 3, the three electromagnetic valves 10722 in the gas insulated cabinet 10021 are opened by the controller 107, and cold air is blown into the gas insulated cabinet 10021 through the vortex tube 10721, so as to cool the gas insulated cabinet 10021, and meanwhile, the corresponding three electromagnetic valves 10722 in the solid insulated cabinet 10022 can be opened by the controller 107, so as to cool the solid insulated cabinet 10022, thereby improving the cooling effect.
Example 2
Referring to fig. 1-5, the present invention provides a technical solution: the utility model provides a fixed cubical switchboard of full insulation totally enclosed interchange metal seal, which comprises a cabinet body 100, inside from the top down of cabinet body 100 transversely installs baffle 101 and baffle two 102 in proper order, baffle 101 and baffle two 102 divide into the cooling bin 1001 of arranging from top to bottom with cabinet body 100, switch cabin 1002 and electrical cabin 1003, vertically install baffle three 103 between baffle 101 and the baffle two 102, baffle three 103 divide into gas insulated cabinet 10021 and the solid insulated cabinet 10022 of arranging about switch cabin 1002, still include cooling module 104, install gas control module 105 in the electrical cabin 1003, solid insulated cabinet 10022 is outer to be articulated to have a cabinet door 106, install controller 107 on the cabinet door 106, cooling module 104 includes gas cooling module 1071 and the interior cooling module 1072 of cabinet.
The gas cooling assembly 1071 comprises a transverse pipe 10711, a gas pipe 10712, a fan 10713, a buffer box 10714, a gas inlet pipe 10715, a first electromagnetic valve 10716, a liquid cooling pipe 10717 and a second electromagnetic valve 10718, the transverse pipe 10711 is transversely installed in a cooling bin 1001, the left end of the transverse pipe 10711 is connected with the inner wall of the cabinet 100, the right end of the transverse pipe 10711 penetrates through the cabinet 100 and extends to the outside of the cabinet 100, the gas pipe 10712 is uniformly wound on the surface of the transverse pipe 10711, one end of the gas pipe 10712 penetrates through a first partition 101 and is communicated with an air insulated cabinet 10021, the buffer box 10714 is installed at one side of the cabinet 100, the gas inlet pipe 10715 is communicated with the buffer box 10714, one end of the gas inlet pipe 10715 penetrates through the side wall of the cabinet 100 and extends into the transverse pipe 10711, the fan 10713 is installed at the upper part of the buffer box 10714, the right end of the first electromagnetic valve 10716 is installed at the right end part of the transverse pipe 10711, the liquid cooling pipe 10717 is installed at one side of the cabinet 100 close to the first electromagnetic valve 10716, the transverse pipe 10717 is communicated with the transverse pipe 10711, the second electromagnetic valve 10712, the liquid cooling pipe 10717 is connected with a solenoid valve seven, and the solenoid valve 10716, the solenoid valve two 10718, the solenoid valve seven and the fan 10713 are respectively electrically connected with the controller 107.
A sealing plate 110 is vertically installed in the electric cabin 1003.
The gas control assembly 105 comprises a delivery pump 1051, a gas tank 1052 for storing SF6 gas, a gas supplementing pipe 1053, a circulating gas pipe 1054, a solenoid valve four 1055, a solenoid valve five 1056, a gas pressure sensor one 1057 and a gas pressure sensor two 1058, wherein the delivery pump 1051 and the gas tank 1052 are respectively arranged at two sides of a sealing plate 110 in an electric cabin 1003, the gas inlet end of the delivery pump 1051 is respectively communicated with the gas supplementing pipe 1053 and the circulating gas pipe 1054, one end of the gas supplementing pipe 1053 far away from the delivery pump 1051 penetrates through the sealing plate 110 to be communicated with the gas tank 1052, the solenoid valve four 1055 and the solenoid valve five 1056 are respectively arranged on the gas supplementing pipe 1053 and the circulating gas pipe 1054, one end of the circulating gas pipe 1054 far away from the delivery pump 1051 penetrates through a partition plate three 103 and upwards extends into a cooling cabin 1001 to be communicated with a gas pipe 10712, the gas pressure sensor one 1057 is arranged in the gas tank 1052, the gas pressure sensor two 1058 are arranged in a gas insulation cabinet 10021, the solenoid valve four 1055, the five 1056, the solenoid valve, The first air pressure sensor 1057 and the second air pressure sensor 1058 are electrically connected to the controller 107.
The in-cabinet cooling assembly 1072 includes 2 vortex tubes 10721, 2 electromagnetic valves three 10722, 2 connecting tubes 10723, gas-filled tube 10724, gas-filled tube 10725, electromagnetic valve six 10726, temperature sensor one 10727 and temperature sensor two 10728 installed in the gas insulation cabinet 10021 and solid insulation cabinet 10022 respectively, connecting pipe 10723 is connected with corresponding vortex tube 10721, the solenoid valve three 10722 is installed respectively on corresponding connecting pipe 10723, install respectively in gas-insulated cabinet 10021 and solid-insulated cabinet 10022 temperature sensor one 10727 and temperature sensor two 10728, temperature sensor one 10727, two 10728 of temperature sensor and three 10722 of solenoid valve respectively with controller 107 electric connection, the upper end and the trachea 10712 intercommunication of gas tube 10724, the lower extreme of gas tube 10724 runs through baffle one 101 and extends to in the solid-insulated cabinet 10022, the tip intercommunication of giving vent to anger of gas tube 10725 lower extreme and delivery pump 1051, the upper end of gas tube 10725 runs through baffle two 102 and extends to in the gas-insulated cabinet 10021.
The gas insulated cabinet 10021 is a sealed structure, a first observation window is installed on the surface of one side of the gas insulated cabinet 10021, and a second observation window is installed on the cabinet door 106.
The cooling bin 1001 is externally hinged with a cooling bin door matched with the cooling bin, one side of the electric bin 1003, which corresponds to the air pump, is hinged with an electric bin door, and sealing strips are arranged on the inner sides of the cooling bin door and the electric bin door.
The gas insulated cabinet 10021 is provided with a plurality of first mounting plates 108, and the solid insulated cabinet 10022 is internally provided with a second mounting plate 109 for mounting the solid-sealed disconnecting switch.
A liquid level window is installed on one side surface of the buffer tank 10714.
The method for cooling the interior of the cabinet by using the device comprises the following specific steps:
step 1, the first temperature sensor 10727 and the second temperature sensor 10728 detect the temperature inside the gas insulation cabinet 10021 and the solid insulation cabinet 10022 respectively, and the detected temperature information is transmitted to the controller 107;
step 2, when the temperature in the gas insulation cabinet 10021 is too high, the controller 107 starts the delivery pump 1051, the second solenoid valve 10718 and the fifth solenoid valve 1056, so that the SF6 gas in the gas insulation cabinet 10021 enters the delivery pump 1051 from the gas pipe 10712 through the circulating gas pipe 1054 and then enters the gas insulation cabinet 10021 again, thereby realizing the circulation of the SF6 gas;
step 3, if the temperature is not reduced after the step 2, the controller 107 controls the fan 10713 and the first electromagnetic valve 10716 to start while continuously performing the operation of the step 2, cools the horizontal pipe 10711 by blowing air into the horizontal pipe 10711, and cools the air pipe 10712 by the horizontal pipe 10711, so that the effect of cooling the gas in the air pipe 10712 is achieved, and finally the gas insulated cabinet 10021 is cooled;
step 4, when the temperature does not reach the requirement after the step 3, the third electromagnetic valve 10722 in the air insulation cabinet 10021 is opened through the controller 107, and cold air is blown into the air insulation cabinet 10021 through the vortex tube 10721 so as to cool the air insulation cabinet 10021, and meanwhile, the third electromagnetic valve 10722 corresponding to the inside of the solid insulation cabinet 10022 can be opened through the controller 107 so as to cool the inside of the solid insulation cabinet 10022, thereby improving the cooling effect;
and 5, connecting an external liquid cooling device through the liquid cooling pipe 10717, and then repeating the step 2 and the step 4.
The working principle is as follows: when the gas storage tank is used, when the delivery pump 1051 works, the electromagnetic valve IV 1055 is opened, so that the gas in the gas tank 1052 can be input into the gas insulation cabinet 10021, the gas insulation cabinet 10021 is inflated, SF6 gas is stored in the gas tank 1052, the gas insulation effect is achieved, the gas pressure in the gas tank 1052 is detected through the gas pressure sensor I1057, and when the gas pressure in the gas tank 1052 is too low, the electric bin door is opened, so that a user can conveniently replace the new gas tank 1052;
the air pump is opened, the first electromagnetic valve 10716 is opened, air blown out by the air pump enters the transverse pipe 10711 through the air inlet pipe 10715 through the buffer tank 10714 and is finally discharged from the right end of the transverse pipe 10711, the air pipe 10712 is wound on the outer side of the transverse pipe 10711, heat of air in the air pipe 10712 is transferred to the transverse pipe 10711, the temperature of the transverse pipe 10711 is increased, hot air in the transverse pipe 10711 is blown out to cool the transverse pipe 10711, the temperature of the air pipe 10712 in contact with the outer side of the transverse pipe 10711 is reduced, and therefore the effect of cooling air in the air pipe 10712 is achieved;
through liquid cooling pipe 10717 and outside liquid cooling device connection, add liquid in horizontal pipe 10711, close two 10718 of solenoid valve 10716 solenoid valve this moment, prevent the liquid outflow to this cooling effect that can improve horizontal pipe 10711 selects the volume of adding liquid as required, when can observing liquid through the liquid window, explains in liquid has entered into buffer tank 10714, can be through closing solenoid valve seven this moment, stops liquid to add.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "provided", "fitted/connected", "connected", and the like, are to be interpreted broadly, such as "connected", which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in a specific case to those of ordinary skill in the art.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. The utility model provides a fixed cubical switchboard is sealed to full insulating totally enclosed interchange metal, includes the cabinet body (100), the inside from the top down of the cabinet body (100) transversely is provided with baffle one (101) and baffle two (102) in proper order, baffle one (101) and baffle two (102) divide into cooling bin (1001), switch cabin (1002) and electrical cabin (1003) of range from top to bottom with the cabinet body (100), vertically between baffle one (101) and baffle two (102) be provided with baffle three (103), baffle three (103) divide into the gas insulated cabinet (10021) and the solid insulated cabinet (10022) of range about switch cabin (1002), its characterized in that: the solid insulation cabinet is characterized by further comprising a cooling assembly (104), wherein a gas control assembly (105) is arranged in the electric bin (1003), a cabinet door (106) is hinged outside the solid insulation cabinet (10022), a controller (107) is arranged on the cabinet door (106), and the cooling assembly (104) comprises a gas cooling assembly (1071) and an in-cabinet cooling assembly (1072);
the gas cooling assembly (1071) comprises a transverse pipe (10711), a gas pipe (10712), a fan (10713), a buffer tank (10714), an air inlet pipe (10715), a first electromagnetic valve (10716), a liquid cooling pipe (10717) and a second electromagnetic valve (10718), wherein the transverse pipe (10711) is transversely arranged in the cooling bin (1001), the left end of the transverse pipe (10711) is connected with the inner wall of the cabinet body (100), the right end of the transverse pipe (10711) penetrates through the cabinet body (100) and extends to the outer side of the cabinet body (100), the gas pipe (10712) is uniformly wound on the surface of the transverse pipe (10711), one end of the gas pipe (10712) penetrates through the first partition plate (101) and is communicated with the gas insulated cabinet (10021), the buffer tank (10714) is arranged on one side of the cabinet body (100), the air inlet pipe (10715) is communicated with the buffer tank (10714), one end of the gas pipe penetrates through the side wall of the cabinet body (100) and extends to the transverse pipe (10711), the fan (10713) is arranged on the upper part of the buffer tank (10714), the air outlet end of the fan (10713) is communicated with the buffer box (10714), the first solenoid valve (10716) is arranged at the right side end of the transverse pipe (10711), the liquid cooling pipe (10717) is arranged at one side of the cabinet body (100) close to the first solenoid valve (10716), the liquid cooling pipe (10717) is communicated with the transverse pipe (10711), the second solenoid valve (10718) is connected with the air pipe (10712), the liquid cooling pipe (10717) is connected with the seventh solenoid valve, and the first solenoid valve (10716), the second solenoid valve (10718), the seventh solenoid valve and the fan (10713) are respectively electrically connected with the controller (107);
the gas control assembly (105) comprises a delivery pump (1051), a gas tank (1052) for storing SF6 gas, a gas supplementing pipe (1053), a circulating gas pipe (1054), a four electromagnetic valve (1055), a five electromagnetic valve (1056), a first air pressure sensor (1057) and a second air pressure sensor (1058), wherein the delivery pump (1051) and the gas tank (1052) are respectively arranged at two sides of an inner sealing plate (110) of the electric gas cabin (1003), the gas inlet end of the delivery pump (1051) is respectively communicated with the gas supplementing pipe (1053) and the circulating gas pipe (1054), one end, far away from the delivery pump (1051), of the gas supplementing pipe (1053) penetrates through the sealing plate (110) and is communicated with the gas tank (1052), the four electromagnetic valve (1055) and the five electromagnetic valve (1056) are respectively arranged on the gas supplementing pipe (1053) and the circulating gas pipe (1054), and one end, far away from the delivery pump (1051), of the circulating gas pipe (1054) penetrates through the partition plate (103), the air pressure sensor I (1057) is arranged in the air tank (1052), the air pressure sensor II (1058) is arranged in the air insulation cabinet (10021), and the electromagnetic valve IV (1055), the electromagnetic valve V (1056), the air pressure sensor I (1057) and the air pressure sensor II (1058) are electrically connected with the controller (107);
the in-cabinet cooling assembly (1072) comprises 2 vortex tubes (10721), 2 solenoid valves three (10722), 2 connecting tubes (10723), an inflation tube (10724), an air filling tube (10725), six solenoid valves (10726), a temperature sensor one (10727) and a temperature sensor two (10728) which are respectively arranged in an air insulation cabinet (10021) and a solid insulation cabinet (10022), the vortex tubes (10721) are connected with the circulating air tube (1054) through the corresponding connecting tubes (10723), the solenoid valves three (10722) are respectively arranged on the corresponding connecting tubes (10723), the temperature sensor one (10727) and the temperature sensor two (10728) are respectively arranged in the air insulation cabinet (10021) and the solid insulation cabinet (10022), the temperature sensor one (10727), the temperature sensor two (10728) and the solenoid valves three (10722) are respectively electrically connected with a controller (107), the upper end of the inflation tube (10724) is communicated with an air tube (10712), the lower end of the inflation pipe (10724) penetrates through the first partition plate (101) and extends into the solid insulation cabinet (10022), the lower end of the gas filling pipe (10725) is communicated with the gas outlet end of the conveying pump (1051), and the upper end of the gas filling pipe (10725) penetrates through the second partition plate (102) and extends into the gas insulation cabinet (10021).
2. The fully insulated and fully sealed AC metal enclosed stationary switchgear of claim 1, wherein: and a sealing plate (110) is vertically arranged in the electric bin (1003).
3. The fully insulated and sealed AC metal closed fixed switch cabinet according to claim 1, wherein: the gas insulated cabinet (10021) is a sealing structure, one side surface of the gas insulated cabinet (10021) is provided with a first observation window, and the cabinet door (106) is provided with a second observation window.
4. The fully insulated and sealed AC metal closed fixed switch cabinet according to claim 1, wherein: the cooling bin (1001) is externally hinged with a cooling bin door matched with the cooling bin, one side of the electric bin (1003) corresponding to the air pump is hinged with an electric bin door, and sealing strips are arranged on the inner sides of the cooling bin door and the electric bin door.
5. The fully insulated and fully sealed AC metal enclosed stationary switchgear of claim 1, wherein: the gas insulated cabinet (10021) is provided with a plurality of mounting panels one (108), set up mounting panel two (109) that are used for installing solid sealed isolator in solid insulated cabinet (10022).
6. The fully insulated and fully sealed AC metal enclosed stationary switchgear of claim 1, wherein: a liquid level window is arranged on the surface of one side of the buffer tank (10714).
7. The fully insulated, fully sealed and fixed alternating current metal enclosed switchgear according to claim 1, wherein the method for cooling the interior of the switchgear (100) comprises the following steps:
step 1, detecting the temperature in a gas insulation cabinet (10021) and a solid insulation cabinet (10022) respectively by a first temperature sensor (10727) and a second temperature sensor (10728), and transmitting the detected temperature information to a controller (107);
step 2, when the temperature in the gas insulation cabinet (10021) is too high, the controller (107) starts the delivery pump (1051), the second electromagnetic valve (10718) and the fifth electromagnetic valve (1056), and the SF6 gas in the gas insulation cabinet (10021) enters the delivery pump (1051) from the gas pipe (10712) through the circulating gas pipe (1054) and then enters the gas insulation cabinet (10021) again, so that the circulation of the SF6 gas is realized;
step 3, if the temperature is not reduced after the step 2, the controller (107) controls the fan (10713) and the first electromagnetic valve (10716) to start while the operation of the step 2 is continuously carried out, the horizontal pipe (10711) is cooled in a mode of blowing air into the horizontal pipe (10711), and the air pipe (10712) is cooled through the horizontal pipe (10711), so that the effect of cooling the air in the air pipe (10712) is achieved, and finally the air insulation cabinet (10021) is cooled;
step 4, when the temperature does not reach the requirement after the step 3, opening a third electromagnetic valve (10722) in the gas insulation cabinet (10021) through the controller (107), and blowing cold air into the gas insulation cabinet (10021) through the vortex tube (10721) so as to cool the gas insulation cabinet (10021), and simultaneously opening a third corresponding electromagnetic valve (10722) in the solid insulation cabinet (10022) through the controller (107) to cool the solid insulation cabinet (10022) and improve the cooling effect;
and 5, connecting an external liquid cooling device through a liquid cooling pipe (10717), and then repeating the step 2 and the step 4, so that the device is convenient to use under the condition that the liquid cooling device is arranged.
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| CN202110452293.7A CN113131376B (en) | 2021-04-26 | 2021-04-26 | Full-insulation full-sealing alternating-current metal-enclosed fixed switch cabinet |
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| CN202110452293.7A CN113131376B (en) | 2021-04-26 | 2021-04-26 | Full-insulation full-sealing alternating-current metal-enclosed fixed switch cabinet |
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| CN113131376B true CN113131376B (en) | 2022-07-26 |
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| CN113708285B (en) * | 2021-07-31 | 2023-08-01 | 杭州华创高科有限公司 | Explosion-proof safe inflation looped netowrk cabinet |
| CN114914811A (en) * | 2022-05-12 | 2022-08-16 | 芜湖森淼电气有限公司 | A switch cabinet with a sensor-type sealing detection structure and method thereof |
| CN115864146B (en) * | 2022-11-23 | 2023-09-15 | 杭州荣科电气设备有限公司 | High-voltage reactive power compensation device capable of detecting and early warning at multiple points |
| CN116093768B (en) * | 2023-02-15 | 2024-04-02 | 山东新升光电科技有限责任公司 | Optimizing device and method for single crystal furnace temperature field power supply cabinet output module |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107332141A (en) * | 2017-08-31 | 2017-11-07 | 方敏 | A kind of dust-proof radiating outdoor distributing box |
| CN209150532U (en) * | 2019-01-11 | 2019-07-23 | 河南优斯特电子技术有限公司 | A kind of low-tension switch cabinet |
| CN209561967U (en) * | 2019-04-22 | 2019-10-29 | 开封市华通成套开关有限公司 | A kind of low-tension switch cabinet |
| CN210074470U (en) * | 2019-07-04 | 2020-02-14 | 江西华源电气科技有限公司 | Fully insulated and fully sealed metal-enclosed ring network switchgear |
| CN111181057A (en) * | 2020-03-13 | 2020-05-19 | 国网吉林省电力有限公司辽源供电公司 | A central cabinet with good cooling effect |
-
2021
- 2021-04-26 CN CN202110452293.7A patent/CN113131376B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107332141A (en) * | 2017-08-31 | 2017-11-07 | 方敏 | A kind of dust-proof radiating outdoor distributing box |
| CN209150532U (en) * | 2019-01-11 | 2019-07-23 | 河南优斯特电子技术有限公司 | A kind of low-tension switch cabinet |
| CN209561967U (en) * | 2019-04-22 | 2019-10-29 | 开封市华通成套开关有限公司 | A kind of low-tension switch cabinet |
| CN210074470U (en) * | 2019-07-04 | 2020-02-14 | 江西华源电气科技有限公司 | Fully insulated and fully sealed metal-enclosed ring network switchgear |
| CN111181057A (en) * | 2020-03-13 | 2020-05-19 | 国网吉林省电力有限公司辽源供电公司 | A central cabinet with good cooling effect |
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Effective date of registration: 20220706 Address after: 255000 No. 66, Dawu Road, Linzi District, Zibo City, Shandong Province Applicant after: SHANDONG QIKAI ELECTRIC POWER EQUIPMENT Co.,Ltd. Address before: 226600 Shuanglou Industrial Park, Qutang Town, Haian County, Nantong City, Jiangsu Province Applicant before: Nantong Shengyang Electric Co.,Ltd. |
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