CN117335308A - Normal-pressure air insulation switch cabinet - Google Patents
Normal-pressure air insulation switch cabinet Download PDFInfo
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- CN117335308A CN117335308A CN202311282520.1A CN202311282520A CN117335308A CN 117335308 A CN117335308 A CN 117335308A CN 202311282520 A CN202311282520 A CN 202311282520A CN 117335308 A CN117335308 A CN 117335308A
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- air inlet
- rod
- box
- filter
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- 238000009413 insulation Methods 0.000 title claims abstract description 18
- 238000004140 cleaning Methods 0.000 claims description 62
- 238000011084 recovery Methods 0.000 claims description 19
- 239000012535 impurity Substances 0.000 claims description 15
- 230000002093 peripheral effect Effects 0.000 claims description 10
- 238000009423 ventilation Methods 0.000 claims description 8
- 230000005540 biological transmission Effects 0.000 claims description 7
- 238000007599 discharging Methods 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000005192 partition Methods 0.000 claims description 2
- 239000000428 dust Substances 0.000 abstract description 14
- 230000006835 compression Effects 0.000 description 8
- 238000007906 compression Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 6
- 238000001914 filtration Methods 0.000 description 5
- 230000009467 reduction Effects 0.000 description 5
- 230000003139 buffering effect Effects 0.000 description 4
- 230000001681 protective effect Effects 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 3
- 239000003292 glue Substances 0.000 description 3
- 230000029058 respiratory gaseous exchange Effects 0.000 description 3
- 230000008033 biological extinction Effects 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000010891 electric arc Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000003245 working effect Effects 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000011490 mineral wool Substances 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000004064 recycling 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
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
- B08B9/08—Cleaning containers, e.g. tanks
- B08B9/087—Cleaning containers, e.g. tanks by methods involving the use of tools, e.g. brushes, scrapers
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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
- 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
- H02B13/025—Safety arrangements, e.g. in case of excessive pressure or fire due to electrical defect
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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
-
- 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
- H02B13/055—Features relating to the gas
Abstract
The application relates to a normal pressure air insulation switch cabinet, which relates to the technical field of switch cabinets and comprises a cabinet body and an air box on the cabinet body, wherein an air inlet piece and an air outlet piece are arranged on the air box, the air inlet piece comprises an air inlet cylinder fixed on the air box, and two ends of the air inlet cylinder are respectively provided with a first air inlet communicated with the outside and a second air inlet communicated with the inside of the air box; the inside of the air inlet cylinder is provided with a first filter cavity and a first filter element positioned in the first filter cavity, and the inside of the air inlet cylinder is provided with an air inlet valve which is used for controlling external air to enter and is positioned on the side surface of the first filter element close to the air box; this application is because the cooperation setting of first filter core and admission valve, when the inside atmospheric pressure of gas tank is less than external atmospheric pressure, and the admission valve is opened, uses first filter core to filter external moisture, dust, improves the quality of the external gas that gets into the gas tank inside, reduces the influence of the external gas that gets into the gas tank inside to the electrical component in the gas tank.
Description
Technical Field
The application relates to the technical field of switch cabinets, in particular to a normal-pressure air insulation switch cabinet
Background
An atmospheric air insulated switchgear is a high voltage electrical apparatus used in electrical power systems for controlling, protecting and distributing electrical energy. The air-conditioner adopts normal-pressure air as an insulating medium, has the advantages of safety, reliability, environmental friendliness, simplicity in maintenance and the like, and is widely applied to the fields of power transmission and distribution systems, industrial and mining enterprises, urban construction and the like.
In the related art, the normal-pressure air insulation switch cabinet comprises a cabinet body and an air box positioned on the cabinet body, wherein electric elements such as a breaker, a fuse and the like are arranged in the cabinet body, and the air box plays important roles of air storage, buffering, vibration reduction, noise reduction, control and adjustment in the normal-pressure air insulation switch cabinet, so that the normal operation, stability and safety of the switch cabinet are ensured; and meanwhile, the respirator is arranged on the air box, when the temperature change or operation occurs in the switch cabinet, the air can expand with heat and contract with cold, so that the internal and external air pressures are unbalanced, the respirator can adjust the internal and external air pressures of the air box, and the deformation or the unstable air pressure difference of the air box is avoided, so that the structure and the internal parts of the switch cabinet are protected.
The exhaler on the gas box is used for realizing the discharge and ventilation of the gas in the gas box so as to maintain the normal working state in the gas box; however, when the exhaler is used on the air box, more dust or impurities can be carried when external air enters the air box through the respirator, the working performance of electric elements in the air box can be affected, and there is room for improvement.
Disclosure of Invention
The purpose of this application is to provide a normal pressure air insulation switch cabinet, solves among the above-mentioned correlation technique, when using the exhaler on the gas tank, outside gas possibly carries more dust or impurity when entering into the gas tank inside through the respirator, can influence the problem of gas tank inside electrical component working property.
The application provides a normal pressure air insulation cubical switchboard adopts following technical scheme:
the atmospheric air insulation switch cabinet comprises a cabinet body and an air box on the cabinet body, wherein a cabinet door is arranged on the cabinet body; the air box is provided with an air inlet piece for air inlet of the air box and an air outlet piece for air exhaust of the air box, the air inlet piece comprises an air inlet cylinder fixed on the air box, and two ends of the air inlet cylinder are respectively provided with a first air inlet communicated with the outside and a second air inlet communicated with the inside of the air box; the inside of an air inlet cylinder is provided with a first filter cavity and a first filter core positioned in the first filter cavity, and an air inlet valve used for controlling external air to enter and positioned on the side surface of the first filter core close to the air box is arranged in the air inlet cylinder.
By adopting the technical scheme, when the air pressure in the air box is smaller than the air pressure of the outside, the air inlet valve is opened, the outside air is filtered through the first filter core in the first filter cavity, and then enters the air box through the opened air inlet valve, so that the balance of the air pressure inside and outside the air box is maintained; after the internal and external air pressures are balanced, closing the air inlet valve; because the cooperation setting of first filter core and admission valve, first filter core is arranged in filtering moisture, dust etc. in the outside air to this reduces the possibility that the inside outside air of entering the gas tank carries more dust or impurity, improves the quality of the inside outside gas of entering the gas tank, reduces the inside outside gas of entering the gas tank and to the influence of the inside electric element of gas tank, improves the working property of the inside electric element of gas tank.
Optionally, a first baffle plate is fixed in the air inlet cylinder, the air inlet valve comprises an air inlet rod, and a first through groove for circulating external air and a first through groove for penetrating and sliding the air inlet rod are formed in the first baffle plate; the two ends of the air inlet rod are respectively provided with a first limiting block and a first baffle for controlling the opening and closing of the first flow channel, the outer peripheral surface of the air inlet rod is sleeved with a first pressure spring in a compressed state, the first pressure spring and the first limiting block are positioned on one side, close to the first filter cavity, of the first baffle, and the first baffle is positioned on one side, close to the air box, of the first baffle.
By adopting the technical scheme, due to the arrangement of the air inlet valve, when the air pressure in the air box is smaller than the air pressure of the outside, the outside air is filtered through the first filter element in the first filter cavity, then the air is extruded to the first baffle through the first circulation groove, the elasticity of the first pressure spring is overcome, and at the moment, the outside air enters the air box through the first circulation groove, so that the balance of the air pressure inside and outside the air box is maintained; after the internal and external air pressures are balanced, under the action of the elastic force of the first pressure spring, the first baffle plate closes the first flow channel again, so that the control of the air inlet valve on the air inlet cylinder is realized.
Optionally, the air inlet rod comprises a first fixing rod and a second fixing rod, an external thread is arranged on the outer peripheral surface of the first fixing rod, and a thread adjusting groove for screwing in the first fixing rod is formed in the second fixing rod.
By adopting the technical scheme, when the compression degree of the first pressure spring is required to be adjusted, the second fixing rod is screwed into different thread adjusting groove depths, so that the whole length of the air inlet rod can be adjusted, and the compression degree of the first pressure spring is adjusted; the mode is also to adjust the pressure range of the pressure difference between the inside and the outside of the gas tank, and adjust the air inlet valve to different degrees so as to adapt to different working environments and load conditions, so that the gas pressure in the gas tank can be always kept within a safe range.
Optionally, a first filter plate for separating the first filter cavity is fixed in the air inlet cylinder.
Through adopting above-mentioned technical scheme, owing to the setting of first filter, with the inside first filter chamber that separates the first filter core that is used for placing of inlet tube to this installation that realizes first filter core is placed.
Optionally, the first filter plate and the first baffle plate jointly separate a first middle cavity, a cleaning component positioned in the first middle cavity is arranged in the air inlet cylinder, the cleaning component comprises a cleaning rod, a transmission piece connected with the cleaning rod and a driving piece used for driving the transmission piece to act, a cleaning block abutted to the side surface of the first middle cavity is arranged on the cleaning rod, and the driving piece is used for driving the cleaning rod to rotate around the axis of the air inlet cylinder; the outer side face of the air inlet cylinder is provided with a recovery component for recovering impurities in the first middle cavity.
Through adopting above-mentioned technical scheme, when needs to clean the inner wall of first intermediate chamber, through the setting of clean subassembly, the driving piece passes through the driving medium and drives the cleaning pole rotation, is equipped with the cleaning piece with first intermediate chamber inner wall butt on the cleaning pole simultaneously to this realizes the cleanness to first intermediate chamber inner wall; after cleaning, the dirty gas mixed with dust or other impurities in the first middle cavity is recovered through the arrangement of the recovery component.
Optionally, retrieve the connecting pipe that the subassembly is fixed in the air inlet cylinder lateral surface and communicate with first intermediate chamber, be used for extracting the power piece of first intermediate chamber inside impurity, the one end and the connecting pipe intercommunication of power piece, the other end of power piece is connected with the recovery pipe, be equipped with the control valve on the connecting pipe, both power piece and control valve start with the driving piece is synchronous.
By adopting the technical scheme, due to the arrangement of the recovery component, when the cleaning component cleans the inner wall of the first intermediate cavity, the power component and the control valve are synchronously started, at the moment, the power component is started, the control valve is opened, and the power component pumps out dirty gas mixed with dust or other impurities in the first intermediate cavity into the recovery pipe through the connecting pipe and discharges the dirty gas; with this setting, the staff also can realize fast through retrieving the subassembly to the collection of the external gas of first filter core filtration, can judge whether the effect of first filter core is effective after detecting.
Optionally, the driving piece is the driving motor who fixes in the middle part of the side of first filter near the gas tank, the driving piece includes the transfer line, the one end of transfer line is fixed at driving motor's output shaft outer peripheral face, the other end and the clean pole fixed connection of transfer line.
Through adopting above-mentioned technical scheme, because driving motor and transfer line's cooperation sets up, can drive the synchronous rotation of clean pole through the transfer line when driving motor starts, and the clean piece rotates around the axis of intake cylinder to it is clean to last the inner wall of first intermediate chamber, with this realization to the cleanness of first intermediate chamber inner wall.
Optionally, set up on the cleaning rod and supply the cleaning block to put into and fixed mounting groove, still be equipped with the direction lug on the cleaning rod, be equipped with on the inner wall of first intermediate chamber and supply the direction lug to insert and pivoted direction annular.
By adopting the technical scheme, when the cleaning block is fixed with the cleaning rod, the cleaning block is fixed on the inner wall of the mounting groove by the arrangement of the mounting groove on the cleaning rod, so that the cleaning block is mounted and fixed; and because the cooperation setting of guide lug and direction annular, when the cleaning rod rotates around the axis of gas inlet tube, the guide lug on the cleaning rod inserts on the inner wall in first intermediate chamber and slides in step to this stability of improving the cleaning rod in the rotation in-process.
Optionally, the piece of giving vent to anger is including fixing the gas outlet cylinder on the gas tank, the inside second filter core that is equipped with the second filter chamber and is located the second filter chamber inside of gas outlet cylinder, the both ends of gas outlet cylinder are equipped with respectively with the outside first gas outlet of intercommunication, with the inside second gas outlet of intercommunication of gas tank, the inside of gas outlet cylinder is equipped with the air outlet valve that is used for controlling external gas and is located the second filter core and be close to the gas tank side.
By adopting the technical scheme, when the air pressure in the air box is greater than the air pressure of the outside, the air outlet valve is opened, and the air in the air box is discharged to the outside after being filtered by the second filter element, so that the balance of the air pressure inside and outside the air box is maintained; after the internal and external air pressure of the air box is balanced, the air outlet valve is closed, so that the balance of the internal and external air pressure of the air box is maintained, meanwhile, due to the arrangement of the second filter element, the effects of air flow buffering, heat absorption and cooling and narrow gap arc extinction are achieved, the exhaust speed of air in the air box is delayed, and meanwhile, the high-temperature air exhausted is subjected to heat absorption, so that the heating degree of equipment can be reduced through cooling treatment, and the reliability and stability of the equipment are improved.
Optionally, a second baffle plate is fixed in the air outlet cylinder, the air outlet valve comprises an air outlet rod, and a second ventilation groove for discharging air in the air box and a second ventilation groove for penetrating and sliding the air outlet rod are formed in the second baffle plate; the two ends of the air outlet rod are respectively provided with a second limiting block and a second baffle for controlling the opening and closing of the second flow channel, the outer peripheral surface of the air outlet rod is sleeved with a second pressure spring in a compressed state, the second pressure spring and the second limiting block are positioned on one side, close to the air box, of the second baffle, and the second baffle is positioned on one side, close to the second filter cavity, of the first baffle.
Through adopting above-mentioned technical scheme, when the inside atmospheric pressure of gas tank is greater than external atmospheric pressure, gas in the gas tank enters into the gas outlet through the second gas outlet in, then gas passes through the second circulation groove extrusion second baffle, and overcome the elasticity of second pressure spring, make the air outlet valve open, make the inside gas of gas tank discharge outside again after passing through the second filter core, with this balance of keeping the inside and outside atmospheric pressure of gas tank, after inside and outside atmospheric pressure balance, under the effect of second pressure spring, the second baffle seals first circulation groove again, with this control of admission valve to the gas inlet tube of realization.
In summary, the present application includes at least one of the following beneficial technical effects:
1. because the first filter core is matched with the air inlet valve, when the air pressure in the air box is smaller than the air pressure of the outside, the air inlet valve is opened, and the first filter core is used for filtering moisture, dust and the like in the outside air, so that the possibility that the outside air entering the air box carries more dust or impurities is reduced, the quality of the outside air entering the air box is improved, the influence of the outside air entering the air box on electric elements in the air box is reduced, and the working performance of the electric elements in the air box is improved; after the internal and external air pressures of the air box are balanced, the air inlet valve is closed, and external air cannot enter the air box through the air inlet cylinder.
2. Through the cooperation setting of clean subassembly and recovery subassembly, when needs to clean the inner wall of first intermediate chamber, through the setting of clean subassembly, the driving piece drives the cleaning rod through the driving medium and rotates, is equipped with the cleaning piece with first intermediate chamber inner wall butt on the cleaning rod simultaneously to this realizes the cleanness to first intermediate chamber inner wall; after cleaning, the dirty gas mixed with dust or other impurities in the first middle cavity is recovered through the arrangement of the recovery component.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of the overall structure of embodiment 1 of the present application;
FIG. 2 is a schematic view of a partial cross-sectional structure embodying an intake fitting of embodiment 1 of the present application;
FIG. 3 is an enlarged schematic view of portion A of FIG. 2;
FIG. 4 is a schematic view of a partial cross-sectional structure embodying an air outlet fitting of embodiment 1 of the present application;
FIG. 5 is a schematic view in partial cross-section of embodiment 2 of the present application embodying a cleaning assembly mounting fit;
FIG. 6 is an enlarged schematic view of portion B of FIG. 5;
fig. 7 is a schematic view of a partially cut-away structure embodying the mounting engagement of the recovery assembly of embodiment 2 of the present application.
In the figure, 1, a cabinet body; 11. a cabinet door; 2. an air box; 21. a door; 3. a fixing plate; 4. an air intake; 41. an air inlet cylinder; 411. a first air inlet; 412. a second air inlet; 413. a first filter chamber; 414. a first baffle plate; 4141. a first flow channel; 4142. a first through groove; 415. a first intermediate chamber; 4151. a guide ring groove; 42. a first filter element; 43. a first filter plate; 44. an intake valve; 441. an air inlet rod; 4411. a first fixing rod; 4412. a second fixing rod; 442. a first compression spring; 443. a first limiting block; 444. a first baffle; 45. a first protective cover; 451. a first air intake chamber; 5. an air outlet member; 51. an air outlet tube; 511. a first air outlet; 512. a second air outlet; 513. a second filter chamber; 514. a second baffle plate; 5141. a second circulation tank; 5142. a second through slot; 515. a second intermediate chamber; 52. a second filter element; 53. a second filter plate; 54. an air outlet valve; 541. an air outlet rod; 542. a second compression spring; 543. a second limiting block; 544. a second baffle; 55. a second protective cover; 551. a second air inlet chamber; 6. a cleaning assembly; 61. a cleaning lever; 611. a mounting groove; 612. a guide projection; 62. a transmission member; 621. a transmission rod; 63. a driving member; 631. a driving motor; 64. a cleaning block; 7. a recovery assembly; 71. a connecting pipe; 711. a control valve; 72. a power member; 721. an air extracting pump; 73. and (5) recycling the pipe.
Detailed Description
The present application is described in further detail below with reference to the accompanying drawings.
Example 1:
referring to fig. 1, an atmospheric air insulation switch cabinet comprises a cabinet body 1 and an air box 2 arranged on the cabinet body 1, wherein a cabinet door 11 is arranged on the cabinet body 1, corresponding electric elements are placed in the cabinet body 1, three corresponding cabinet doors 21 are arranged on the air box 2, the air box 2 plays important roles of air storage, buffering, vibration reduction, noise reduction, control and adjustment in the atmospheric air insulation switch cabinet, and normal operation, stability and safety of the switch cabinet are guaranteed; the breathing assembly is arranged on the air box 2, and the communication between the air box 2 and the external air is realized through the breathing assembly, so that the deformation of the air box 2 or the unstable air pressure difference is avoided, and the structure and the internal parts of the switch cabinet are protected.
Referring to fig. 1 and 2, the breathing assembly includes a fixing plate 3, an air inlet 4, and an air outlet 5, wherein the air inlet 4 includes an air inlet cylinder 41 for controlling the external air to enter the inside of the air box 2, the air outlet 5 includes an air outlet cylinder 51 for controlling the air inside the air box 2 to be discharged outside, one ends of both the air inlet cylinder 41 and the air outlet cylinder 51 are fixed on the fixing plate 3 by welding, and then the fixing plate 3 is fixed on the top of the air box 2 by bolts.
Referring to fig. 2, both ends of the air intake cylinder 41 are provided with a first air inlet 411 communicating with the outside and a second air inlet 412 communicating with the inside of the air box 2, respectively; the inside of the air inlet cylinder 41 is provided with a first filter cavity 413 and a first filter element 42 positioned in the first filter cavity 413, and a first filter plate 43 used for separating the first filter cavity 413 is fixedly arranged in the air inlet cylinder 41, wherein the first filter element 42 is a filter rock wool net and is used for filtering moisture, dust and the like in the outside air. Meanwhile, an air inlet valve 44 for controlling the external air to enter is arranged in the air outlet barrel 51, and the air inlet valve 44 is positioned on the side surface of the first filter plate 43, which is close to the air box 2; when the air pressure in the air box 2 is smaller than the air pressure of the outside, the air inlet valve 44 is opened, and the outside air enters the air box 2 through the first air inlet 411 and the second air inlet 412 in sequence, so that the balance of the air pressure inside and outside the air box 2 is maintained; after the air pressure is equalized, the intake valve 44 is closed and the external air stops entering.
Referring to fig. 2, the end of the air inlet cylinder 41 away from the air box 2 is provided with a first protective cover 45, and the first protective cover 45 is provided with a first air inlet cavity 451 which is open towards the air box 2 and is communicated with the first air inlet 411; the outside air can be introduced into the air box 2 only through the first air inlet 451 opened downward, thereby reducing the amount of dust or foreign matter from the outside in a natural state introduced into the air inlet tube 41 through the first air inlet 411.
Referring to fig. 2 and 3, a first baffle plate 414 positioned on the side surface of the first filter plate 43 near the air box 2 is fixed inside the air inlet cylinder 41 by welding or glue, and the peripheral surface of the first baffle plate 414 is abutted and fixed with the inner wall of the air inlet cylinder 41; wherein the first filter plate 43 and the first baffle plate 414 together define a first intermediate chamber 415; the air inlet valve 44 comprises an air inlet rod 441 and a first pressure spring 442 sleeved on the air inlet rod 441, four first flow grooves 4141 for external air to circulate and first flow grooves 4142 for the air inlet rod 441 to penetrate and slide are formed in the first baffle plate 414, a first limiting block 443 and a first baffle 444 for controlling the opening and closing of the first flow grooves 4141 are respectively arranged at two ends of the air inlet rod 441, the first baffle 444 can completely block the four first flow grooves 4141, the first baffle 444 is positioned at one side of the first baffle plate 414 close to the air box 2, the first limiting block 443 is positioned at one side of the first baffle plate 414 close to the first middle cavity 415, the first pressure spring 442 is in a compressed state after being installed, and two ends of the first pressure spring 442 are respectively abutted against the first limiting block 443 and the first baffle plate 414; the first shutter 444 completely closes the four first flow channels 4141 when the air pressure inside and outside the air box is balanced.
Referring to fig. 3, the air intake rod 441 includes a first fixing rod 4411 and a second fixing rod 4412, one end of the first fixing rod 4411 is welded to the first barrier 444, and the second fixing rod 4412 is welded to the first stopper 443; and be equipped with the external screw thread on the outer peripheral face of first dead lever 4411, set up the screw thread adjustment groove that supplies first dead lever 4411 screw in on the second dead lever 4412, screw in different screw thread adjustment groove depths with second dead lever 4412 to this can realize the regulation to the whole length of inlet rod 441, and then realize adjusting the compression degree of first pressure spring 442.
Referring to fig. 4, both ends of the air outlet tube 51 are respectively provided with a first air outlet 511 communicated with the outside and a second air outlet 512 communicated with the inside of the air box 2; a second filter cavity 513 and a second filter core 52 positioned in the second filter cavity 513 are arranged in the air outlet barrel 51, and a second filter plate 53 used for separating the second filter cavity 513 is arranged in the air outlet barrel 51, wherein the second filter core 52 is a small ceramic ball with different direct sizes; when the electric arc in the air box 2 occurs, the high-temperature gas generated by the electric arc is discharged to the outside through the small ceramic balls, and due to the arrangement of the second filter element 52, the effects of air flow buffering, heat absorption, temperature reduction and narrow-gap arc extinction are achieved, meanwhile, the air outlet valve 54 used for controlling the outside gas to enter and located on the side surface of the second filter plate 53 close to the air box 2 is arranged in the air outlet cylinder 51, when the air pressure in the air box 2 is larger than the air pressure in the outside, the air outlet valve 54 is opened, and the air in the air box 2 is discharged to the outside through the second air outlet 512, the second filter element 52 and the first air outlet 511 in sequence, so that the balance of the air pressure inside and outside the air box 2 is maintained.
Referring to fig. 4, a second protection cover 55 is installed at the end of the air outlet tube 51 far from the air box 2, and a second air inlet cavity 551 which is opened toward the air box 2 and is communicated with the first air outlet 511 is provided on the second protection cover 55, so that dust or impurities outside in a natural state can be reduced and enter the air outlet tube 51 through the first air outlet 511.
Referring to fig. 4, a second baffle 514 is fixed inside the air outlet tube 51, and the second baffle 514 and the second filter plate 53 jointly partition a second intermediate chamber 515; the air outlet valve 54 comprises an air outlet rod 541 and a second pressure spring 542 sleeved on the air outlet rod 541, a plurality of second ventilation grooves 5141 for discharging air in the air tank 2 and a second ventilation groove 5142 for allowing the air outlet rod 541 to penetrate and slide are formed in the second baffle plate 514, a second limiting block 543 and a second baffle plate 544 for controlling the second ventilation groove 5141 to open and close are respectively arranged at two ends of the air outlet rod 541, the first baffle plate 444 is located at one side of the first baffle plate 414 close to the second filter cavity 513, and the second limiting block 543 is located at one side of the second baffle plate 514 close to the air tank 2; the second compression spring 542 is in a compressed state, and two end parts of the second compression spring 542 are respectively abutted against the second limiting block 543 and the second blocking plate 514; the second baffle 544 completely closes the four second flow channels 5141 when the air pressure inside and outside the air box is balanced. The air outlet rod 541 has the same assembly structure as the air inlet rod 441 (see fig. 3), and is assembled by a first fixing rod 4411 (see fig. 3) and a second fixing rod 4412 (see fig. 3), which are not described herein.
The implementation principle of the embodiment of the application is as follows:
when the air pressure in the air box 2 is smaller than the air pressure in the outside, the air inlet valve 44 is opened, the outside air is filtered through the first filter element 42 in the first filter cavity 413, then the first baffle 444 is extruded through the first flow channel 4141, and after the elasticity of the first pressure spring 442 is overcome, the outside air enters the air box 2, so that the balance of the air pressure inside and outside the air box 2 is maintained; after the internal and external air pressures are balanced, under the action of the first compression spring 442, the first baffle 444 seals the first flow channel 4141 again;
when the air pressure inside the air box 2 is greater than the air pressure of the outside, the air outlet valve 54 is opened, the air in the air box 2 enters the air outlet cylinder 51 through the second air outlet 512, then the air presses the second baffle 544 through the second flow channel 5141, overcomes the elastic force of the second pressure spring 542, and enables the air inside the air box 2 to pass through the second filter core 52 and then be discharged to the outside, so that the balance of the air pressure inside and outside the air box 2 is maintained, and after the air pressure inside and outside is balanced, the second baffle 544 seals the first flow channel 4141 again under the action of the second pressure spring 542.
Example 2:
referring to fig. 5, the difference between the embodiment of the present application and embodiment 1 is that a cleaning assembly 6 is disposed in the air inlet tube 41, wherein the cleaning assembly 6 includes a cleaning rod 61, a driving member 62 connected with the cleaning rod 61, and a driving member 63 for driving the driving member 62 to act, a cleaning block 64 abutting against a side surface of the first middle cavity 415 is disposed on the cleaning rod 61, the cleaning block 64 is a sponge or a soft cleaning brush fixed on the cleaning rod 61 by glue, a mounting groove 611 for the cleaning block 64 to be placed in and fixed by the glue is disposed on the cleaning rod 61, and the driving member 63 is used for driving the cleaning rod 61 to rotate around the axis of the air inlet tube 41.
Referring to fig. 5 and 6, the driving member 63 is a driving motor 631 fixed at the middle of the side of the first filter plate 43 near the air box 2 (see fig. 2), and the driving member 62 includes a driving rod 621, wherein one end of the driving rod 621 is fixedly sleeved on the outer circumferential surface of the output shaft of the driving motor 631, and the other end of the driving rod 621 is fixedly connected with the cleaning rod 61; the number of the cleaning bars 61 is two, and the cleaning bars 61 are arranged oppositely, and the axis in the length direction of the cleaning bars 61 is parallel to the axis in the height direction of the air inlet cylinder 41; the cleaning rod 61 is provided with a guide lug 612, the outline shape of the guide lug 612 is one third of a sphere, and a guide ring groove 4151 for the guide lug 612 to insert and rotate is formed on the inner wall of the first middle cavity 415 around the axis of the air inlet cylinder 41, so that the stability of the cleaning rod 61 during rotation is enhanced; when the driving motor 631 is started, the cleaning lever 61 is driven to rotate synchronously by the driving lever 621, and the cleaning block 64 rotates around the axis of the air intake cylinder 41 and continuously cleans the inner wall of the first intermediate chamber 415.
Referring to fig. 5 and 7, the outer side surface of the air intake cylinder 41 is provided with a recovery assembly 7 for recovering impurities in the first intermediate chamber 415, the recovery assembly 7 comprises a connecting pipe 71 fixed on the outer side surface of the air intake cylinder 41 and communicated with the first intermediate chamber 415, a power piece 72 for extracting impurities in the first intermediate chamber 415, the power piece 72 is fixed on the air box 2 (see fig. 2), one end of the air pump 721 is communicated with the connecting pipe 71, the other end of the air pump 721 is connected with a recovery pipe 73, the recovery pipe 73 is a hose, a control valve 711 synchronously started with the driving piece 63 is arranged at a part of the connecting pipe 71 close to the air intake cylinder 41, and the control valve 711 is an electromagnetic valve; the sensor is installed on the air inlet cylinder 41, when the driving motor 631 is detected to be started, the control valve 711 and the air extracting pump 721 are synchronously started, dirty air mixed with dust or other impurities in the first middle cavity 415 is extracted and discharged into the recovery pipe 73 for treatment, at the moment, the air pressure of the first middle cavity 415 is smaller than the air pressure in the air box 2 (see fig. 2) and the air pressure of the outside, but due to the blocking of the first baffle 444, the air in the air box 2 (see fig. 2) cannot enter the first middle cavity 415 through the first baffle 444, and the outside air enters the first middle cavity 415 through the first air inlet 411 and the filtering of the first filter element 42 and is then absorbed into the recovery pipe 73 through the recovery assembly 7; with this setting, the staff also can realize fast through retrieving the collection of subassembly 7 to the external gas of filter through first filter core 42, can judge after the detection whether the effect of first filter core 42 is effective.
Unless defined otherwise, terms or scientific terms used herein should be given the ordinary meaning as understood by one of ordinary skill in the art to which this application belongs. The terms "first," "second," "third," and the like, as used herein do not denote any order, quantity, or importance, but rather are used to distinguish one element from another. The terms "a" or "an" and the like do not denote a limitation of quantity, but rather denote the presence of at least one. The word "comprising" or "comprises", and the like, is intended to mean that elements or items that are present in front of "comprising" or "comprising" are included in the word "comprising" or "comprising", and equivalents thereof, without excluding other elements or items. "upper", "lower", "left", "right", etc. are used merely to denote relative positional relationships, which may also change accordingly when the absolute position of the object to be described changes.
The embodiments of this embodiment are all preferred embodiments of the present application, and are not intended to limit the scope of the present application, in which like parts are denoted by like reference numerals. Therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.
Claims (10)
1. The atmospheric air insulation switch cabinet comprises a cabinet body (1) and an air box (2) on the cabinet body (1), wherein a cabinet door (11) is arranged on the cabinet body (1); an air inlet piece (4) for air inlet of the air box (2) and an air outlet piece (5) for air exhaust of the air box (2) are arranged on the air box (2), the air inlet piece (4) comprises an air inlet cylinder (41) fixed on the air box (2), and two ends of the air inlet cylinder (41) are respectively provided with a first air inlet (411) communicated with the outside and a second air inlet (412) communicated with the inside of the air box (2);
the air inlet device is characterized in that a first filter cavity (413) and a first filter element (42) positioned in the first filter cavity (413) are arranged in the air inlet cylinder (41), and an air inlet valve (44) used for controlling external air to enter and positioned on the side surface of the first filter element (42) close to the air box (2) is arranged in the air inlet cylinder (41).
2. The normal pressure air insulation switch cabinet according to claim 1, wherein a first baffle plate (414) is fixed in the air inlet cylinder (41), the air inlet valve (44) comprises an air inlet rod (441), and a first through groove (4141) for circulating outside air and a first through groove (4142) for penetrating and sliding the air inlet rod (441) are formed in the first baffle plate (414);
the two ends of the air inlet rod (441) are respectively provided with a first limiting block (443) and a first baffle (444) for controlling the opening and closing of the first flow channel (4141), the outer peripheral surface of the air inlet rod (441) is sleeved with a first pressure spring (442) in a compressed state, the first pressure spring (442) and the first limiting block (443) are positioned on one side, close to the first filter cavity (413), of the first baffle (414), and the first baffle (444) is positioned on one side, close to the air box (2), of the first baffle (414).
3. The atmospheric air-insulated switchgear according to claim 2, wherein the air inlet rod (441) comprises a first fixing rod (4411) and a second fixing rod (4412), external threads are arranged on the outer peripheral surface of the first fixing rod (4411), and a thread adjusting groove for screwing the first fixing rod (4411) is formed in the second fixing rod (4412).
4. An atmospheric air insulated switchgear according to claim 2, characterized in that the interior of the air inlet cylinder (41) is fixed with a first filter plate (43) separating the first filter chamber (413).
5. The normal-pressure air insulation switch cabinet according to claim 4, wherein the first filter plate (43) and the first baffle plate (414) jointly partition a first middle cavity (415), a cleaning assembly (6) positioned in the first middle cavity (415) is arranged in the air inlet cylinder (41), the cleaning assembly (6) comprises a cleaning rod (61), a transmission piece (62) connected with the cleaning rod (61) and a driving piece (63) used for driving the transmission piece (62) to act, a cleaning block (64) abutted to the side face of the first middle cavity (415) is arranged on the cleaning rod (61), and the driving piece (63) is used for driving the cleaning rod (61) to rotate around the axis of the air inlet cylinder (41); the outer side surface of the air inlet cylinder (41) is provided with a recovery component (7) for recovering impurities in the first middle cavity (415).
6. The normal-pressure air insulation switch cabinet according to claim 5, wherein the recovery assembly (7) is fixed on the outer side surface of the air inlet cylinder (41) and is communicated with the connecting pipe (71) of the first middle cavity (415), the power piece (72) is used for extracting impurities in the first middle cavity (415), one end of the power piece (72) is communicated with the connecting pipe (71), the other end of the power piece (72) is connected with the recovery pipe (73), the connecting pipe (71) is provided with the control valve (711), and the power piece (72) and the control valve (711) are synchronously started with the driving piece (63).
7. The normal-pressure air insulation switch cabinet according to claim 5, wherein the driving piece (63) is a driving motor (631) fixed on the first filter plate (43) near the middle of the side face of the air box (2), the driving piece (62) comprises a driving rod (621), one end of the driving rod (621) is fixed on the outer peripheral face of an output shaft of the driving motor (631), and the other end of the driving rod (621) is fixedly connected with the cleaning rod (61).
8. The atmospheric air insulated switchgear according to claim 5, wherein the cleaning rod (61) is provided with a mounting groove (611) into which the cleaning block (64) is inserted and fixed, the cleaning rod (61) is further provided with a guiding projection (612), and the inner wall of the first intermediate chamber (415) is provided with a guiding ring groove (4151) into which the guiding projection (612) is inserted and rotates.
9. An atmospheric air insulation switch cabinet according to claim 1, wherein the air outlet member (5) comprises an air outlet barrel (51) fixed on the air box (2), a second filter cavity (513) and a second filter element (52) positioned in the second filter cavity (513) are arranged in the air outlet barrel (51), a first air outlet (511) communicated with the outside and a second air outlet (512) communicated with the inside of the air box (2) are respectively arranged at two ends of the air outlet barrel (51), and an air outlet valve (54) used for controlling the outside air to enter and positioned on the side surface of the second filter element (52) close to the air box (2) is arranged in the air outlet barrel (51).
10. The normal pressure air insulation switch cabinet according to claim 9, wherein a second baffle plate (514) is fixed in the air outlet cylinder (51), the air outlet valve (54) comprises an air outlet rod (541), and a second ventilation groove (5141) for discharging air in the air tank (2) and a second ventilation groove (5142) for allowing the air outlet rod (541) to penetrate and slide are formed in the second baffle plate (514);
the two ends of the air outlet rod (541) are respectively provided with a second limiting block (543) and a second baffle (544) for controlling the second flow channel (5141) to open and close, the outer peripheral surface of the air outlet rod (541) is sleeved with a second pressure spring (542) in a compressed state, the second pressure spring (542) and the second limiting block (543) are located at one side, close to the air box (2), of the second baffle plate (514), and the second baffle (544) is located at one side, close to the second filter cavity (513), of the first baffle plate (414).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311282520.1A CN117335308B (en) | 2023-09-28 | 2023-09-28 | Normal-pressure air insulation switch cabinet |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311282520.1A CN117335308B (en) | 2023-09-28 | 2023-09-28 | Normal-pressure air insulation switch cabinet |
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| CN117335308A true CN117335308A (en) | 2024-01-02 |
| CN117335308B CN117335308B (en) | 2024-03-12 |
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| CN202311282520.1A Active CN117335308B (en) | 2023-09-28 | 2023-09-28 | Normal-pressure air insulation switch cabinet |
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| CN207490419U (en) * | 2017-11-10 | 2018-06-12 | 天津市诚源电器有限公司 | A kind of switchgear explosion-protection equipment |
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| CN213071949U (en) * | 2020-08-14 | 2021-04-27 | 湖南伟恒机电设备有限公司 | Damp-proof all-insulation air cabinet |
| CN113315011A (en) * | 2021-06-29 | 2021-08-27 | 张淑荣 | Power distribution cabinet |
| CN214899808U (en) * | 2021-06-24 | 2021-11-26 | 深圳市创亿电力设备有限公司 | Atmospheric air insulation environment-friendly cabinet |
| CN114843924A (en) * | 2022-05-25 | 2022-08-02 | 广东正超电气有限公司 | Normal-pressure sealed air insulation switch equipment |
| CN217720483U (en) * | 2022-06-01 | 2022-11-01 | 伍山信息科技(江苏)有限公司 | Novel environmental protection gas ring main unit |
| CN219227021U (en) * | 2022-12-20 | 2023-06-20 | 浙江杰云电力科技有限公司 | Feeder cabinet convenient to heat dissipation |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3337276A1 (en) * | 1983-10-13 | 1985-04-25 | Brown, Boveri & Cie Ag, 6800 Mannheim | Switch panel for a medium-voltage or low-voltage switching and distribution installation |
| CN106936082A (en) * | 2017-05-11 | 2017-07-07 | 杭州力谱科技有限公司 | A kind of dustproof distributor box |
| CN207490419U (en) * | 2017-11-10 | 2018-06-12 | 天津市诚源电器有限公司 | A kind of switchgear explosion-protection equipment |
| CN111130000A (en) * | 2020-01-15 | 2020-05-08 | 郭小娟 | Ring main unit with moisture-proof function for outdoor use |
| CN213071949U (en) * | 2020-08-14 | 2021-04-27 | 湖南伟恒机电设备有限公司 | Damp-proof all-insulation air cabinet |
| CN214899808U (en) * | 2021-06-24 | 2021-11-26 | 深圳市创亿电力设备有限公司 | Atmospheric air insulation environment-friendly cabinet |
| CN113315011A (en) * | 2021-06-29 | 2021-08-27 | 张淑荣 | Power distribution cabinet |
| CN114843924A (en) * | 2022-05-25 | 2022-08-02 | 广东正超电气有限公司 | Normal-pressure sealed air insulation switch equipment |
| CN217720483U (en) * | 2022-06-01 | 2022-11-01 | 伍山信息科技(江苏)有限公司 | Novel environmental protection gas ring main unit |
| CN219227021U (en) * | 2022-12-20 | 2023-06-20 | 浙江杰云电力科技有限公司 | Feeder cabinet convenient to heat dissipation |
Also Published As
| Publication number | Publication date |
|---|---|
| CN117335308B (en) | 2024-03-12 |
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