CN113644576A - Centrally installed switchgear capable of meeting temperature rise and arcing requirements - Google Patents
Centrally installed switchgear capable of meeting temperature rise and arcing requirements Download PDFInfo
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- CN113644576A CN113644576A CN202111020158.1A CN202111020158A CN113644576A CN 113644576 A CN113644576 A CN 113644576A CN 202111020158 A CN202111020158 A CN 202111020158A CN 113644576 A CN113644576 A CN 113644576A
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- arcing
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- hole
- assembly
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- 230000000903 blocking effect Effects 0.000 claims description 45
- 238000001514 detection method Methods 0.000 claims description 22
- 238000005286 illumination Methods 0.000 claims description 19
- 238000009423 ventilation Methods 0.000 claims description 17
- 238000007789 sealing Methods 0.000 claims description 15
- 229910001220 stainless steel Inorganic materials 0.000 claims description 15
- 238000004880 explosion Methods 0.000 claims description 13
- 230000017525 heat dissipation Effects 0.000 claims description 10
- 230000000712 assembly Effects 0.000 claims description 8
- 238000000429 assembly Methods 0.000 claims description 8
- 239000010935 stainless steel Substances 0.000 claims description 4
- 238000005422 blasting Methods 0.000 claims description 3
- 230000035939 shock Effects 0.000 claims description 3
- 230000004308 accommodation Effects 0.000 claims 2
- 230000003313 weakening effect Effects 0.000 abstract description 7
- 230000002829 reductive effect Effects 0.000 description 7
- 230000000670 limiting effect Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 230000000979 retarding effect Effects 0.000 description 4
- 238000003780 insertion Methods 0.000 description 3
- 230000037431 insertion Effects 0.000 description 3
- 230000002265 prevention Effects 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000003449 preventive effect Effects 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000036961 partial effect Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/56—Cooling; Ventilation
- H02B1/565—Cooling; Ventilation for cabinets
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/24—Circuit arrangements for boards or switchyards
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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
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/30—Cabinet-type casings; Parts thereof or accessories therefor
- H02B1/306—Accessories, e.g. windows
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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
- H02B1/30—Cabinet-type casings; Parts thereof or accessories therefor
- H02B1/32—Mounting of devices therein
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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
- H02B11/00—Switchgear having carriage withdrawable for isolation
- H02B11/12—Switchgear having carriage withdrawable for isolation with isolation by horizontal withdrawal
- H02B11/167—Switchgear having carriage withdrawable for isolation with isolation by horizontal withdrawal truck type
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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
- H02B13/025—Safety arrangements, e.g. in case of excessive pressure or fire due to electrical defect
Abstract
The invention relates to the field of middle-placed cabinets, and discloses a middle-placed cabinet meeting temperature rise and arcing requirements. First closure plate and mainboard articulated setting have formed the measure of first way weakening arcing air current, through setting up the baffle, have formed the second and have weakened the measure, through the articulated setting of base plate with the articulated slab, have formed the third and have weakened the measure, and the baffle is mutually supported with the board of delaying, forms labyrinth structure, weakens the impact force of arcing air current greatly for the loss reduces to the minimum, and can not have the object departure that surpasss weight and put the cabinet in, accords with international standard.
Description
[ technical field ] A method for producing a semiconductor device
The invention relates to the field of centrally installed cabinets, in particular to a centrally installed cabinet which meets the requirements of temperature rise and arcing.
[ background of the invention ]
The centrally installed switchgear is used as an independent centrally installed switchgear with medium and small capacity in a power distribution system, and is suitable for power distribution rooms in places such as factories, mines, ports, stations, residential districts, underground facilities and the like. The standard requires that forced ventilation is required above 3150kA to reduce the temperature rise of the cabinet. Put cabinet casing in and must have the pressure relief device who prevents arcing trouble, three fans are generally installed to traditional 4000kA cabinet of putting cabinet in, one is located the preceding room down and induced drafts, two are located circuit breaker roof portion and generating line roof portion respectively and are aired exhaust in addition, adopt natural cooling below the 4000kA, but the effect is not good, mainly do not set up air intake or air intake undersize, reach the cooling effect of ideal not, when the arcing air current explosion takes place, traditional put cabinet in often only set up the baffle and keep apart, lead to its prevention effect not good, when the explosion takes place, big object and arcing air current rush out, easily cause the damage to the staff, and the easy blowout is greater than 60 g's object, do not reach international standard.
[ summary of the invention ]
The invention aims to solve the problems and provides a middle-placed cabinet meeting the requirements of temperature rise and arcing, which solves the problems that the existing arcing prevention airflow device has poor arcing prevention airflow effect, is easy to spray large objects, is easy to hurt people and does not meet the international standard.
In order to achieve the purpose, the invention adopts the following technical scheme:
a centrally installed switchgear meeting temperature rise and arcing requirements comprises a main body, a front door plate, a rear door plate, an air inlet flow blocking plugging device, a handcart rocking handle hole padlock device, a heat dissipation pressure relief device and an observation device, wherein the air inlet flow blocking plugging device is arranged between the main body and the front door plate, the handcart rocking handle hole padlock device is arranged on the front door plate, the handcart rocking handle hole padlock device is positioned above the air inlet flow blocking plugging device, the heat dissipation pressure relief device is arranged at the top of the main body, and the observation device is arranged between the main body and the rear door plate;
the air inlet flow blocking and plugging device comprises a sealing plate, a baffle plate, a delay plate and a hollow part, wherein the sealing plate is arranged in the main body, the hollow part is arranged between the sealing plate and the front door plate, the baffle plate and the delay plate are arranged in the hollow part, and the baffle plate is positioned above the delay plate;
the sealing plate comprises a main plate, a ventilation opening and a first blocking plate, the ventilation opening is formed in the upper half portion of the main plate, the ventilation opening is communicated with the interior of the middle cabinet, the first blocking plate is arranged below the ventilation opening and is hinged with the main plate, shock waves caused by arc gas flow explosion impact the first blocking plate, and the first blocking plate falls down towards the direction of the reserved portion;
the delay plate comprises a base plate, a hinged plate and a first vertical plate, the base plate is connected with the main plate, one end of the hinged plate is hinged to the base plate, the other end of the hinged plate is connected with the first vertical plate, blasting airflow passing through the first blocking plate and the baffle plate impacts the hinged plate, and the hinged plate falls down towards the direction of the reserved part to further block arc burning airflow.
Preferably, the front door panel comprises a first air inlet, a second air inlet and a pressure relief frame, the first air inlet is arranged at the bottom of the front door panel, the second air inlet is arranged on the front door panel, the second air inlet is positioned above the first air inlet, and the pressure relief frame is arranged at a position, opposite to the second air inlet, on the main body.
Preferably, the first air inlet and the second air inlet are internally provided with a stainless steel wire mesh, and the diameter of the stainless steel wire mesh is not less than 0.5 mm.
Preferably, the main part includes circuit breaker room, generating line room and cable chamber, the circuit breaker room is located the main part is close to the one end of preceding door plant, the cable chamber is located the main part is close to the one end of back door plant, the generating line room is located the circuit breaker room with between the cable chamber.
Preferably, the heat dissipation and pressure relief device comprises a first pressure relief assembly and two second pressure relief assemblies, the first pressure relief assembly is arranged at the top of the cable chamber and communicated with the cable chamber, and the two second pressure relief assemblies are respectively arranged at the top of the circuit breaker chamber and the top of the bus chamber and communicated with the circuit breaker chamber and the bus chamber respectively.
Preferably, the first pressure relief assembly comprises a first frame body, the bottom of the first frame body is communicated with the cable chamber, a plurality of air outlets are formed in the outer side wall of the first frame body, stainless steel wire meshes are arranged in the air outlets, a first pressure relief plate is arranged at the top of the first frame body and hinged to the side wall of the first frame body, when the cable chamber is flushed by arcing airflow, the first pressure relief plate can rotate around the side wall of the first frame body to perform pressure relief operation, and the rotation angle of the first pressure relief plate is 0-90 degrees;
the second pressure release subassembly includes the second framework, the bottom and the generating line room intercommunication of second framework, the bottom of second framework are equipped with the gap plate, be equipped with the draught fan in the second framework, the top of second framework is equipped with the vent, and the indoor heat of generating line passes through successively follow the vent effluvium behind gap plate and the draught fan, the lateral wall of second framework is equipped with the second pressure release board, the second pressure release board with the second framework is articulated, and the indoor arcing air current of generating line is followed the second pressure release board gives off to the external world.
Preferably, the handcart rocking handle hole padlock device comprises a mounting plate, a plugging component and an inserting channel, wherein the plugging component is slidably sleeved on the mounting plate, the inserting channel is arranged on one side, away from the plugging component, of the mounting plate, and the inserting channel penetrates through the mounting plate;
the mounting panel includes the recess, the grafting passageway is located the middle part of recess, one side of grafting passageway is equipped with spacing post, spacing post is kept away from the one end of recess is equipped with first through-hole.
Preferably, the shutoff subassembly includes sunshade, extension board and second through-hole, the sunshade slidable ground cover is located in the recess, the extension board is located the sunshade is kept away from one side of recess, just the extension board with spacing post phase-match, the second through-hole is located on the extension board with the position that first through-hole corresponds, when the shutoff subassembly is closed, the extension board with spacing post contact, axis coincidence in the level of first through-hole with the second through-hole for hang the key.
Preferably, the observation device comprises an infrared detection assembly, an electrified display assembly and an illumination assembly, the infrared detection assembly is arranged in the middle of the main body, the electrified display assembly is positioned below the infrared detection assembly, the illumination assembly is positioned below the electrified display assembly, and a stopper is arranged on one side of each of the infrared detection assembly, the electrified display assembly and the illumination assembly and used for controlling the opening and closing states of the infrared detection assembly, the electrified display assembly and the illumination assembly;
the stop device comprises a base, a handle, a telescopic column, an elastic part and a positioning screw, one end of the base is in contact with the outer surface of the door body, the other end of the base is provided with a groove, the middle of the groove is provided with a through hole, one end of the telescopic column is inserted into the through hole, the telescopic column penetrates through the door body, the elastic part is sleeved on the telescopic column, a pull glove is arranged in the groove, the middle of the handle is provided with an accommodating hole, the other end of the telescopic column is inserted into the accommodating hole, the top of the handle is provided with a positioning hole, the positioning screw is inserted into the positioning hole, and the positioning screw is inserted into the telescopic column.
Preferably, the telescopic column comprises a column body, a column head and a connecting part, the column head is arranged at one end of the main body close to the door body, the connecting part is arranged at one end of the column head close to the handle, one end of the elastic part abuts against the column head, the other end of the elastic part abuts against the inner side wall of the base, the connecting part is inserted into the accommodating hole, and the positioning screw is inserted into the connecting part;
the handle further comprises a hand-held part and a rotating block, the rotating block is arranged in the groove, and the hand-held part is arranged on one side, far away from the groove, of the rotating block.
The contribution of the invention lies in: according to the invention, the first blocking plate is hinged with the main body, a first measure for weakening the arcing airflow is formed, the second measure for weakening is formed by arranging the baffle plate, the third measure for weakening is formed by hinging the base plate and the hinged plate, and the baffle plate and the retardation plate are matched with each other to form a labyrinth structure, so that the impact force of the arcing airflow is greatly weakened, the loss is reduced to the minimum, no object exceeding the weight flies out of the middle-placed cabinet, and the intermediate-placed cabinet meets international standards.
[ description of the drawings ]
FIG. 1 is an enlarged schematic view of portion A of FIG. 2;
FIG. 2 is a side sectional view of the present invention;
FIG. 3 is a schematic structural diagram of a front door panel and an air intake blocking and plugging device according to the present invention;
FIG. 4 is a schematic structural view of a front door panel of the present invention;
FIG. 5 is a schematic structural view of the closure plate of the present invention;
FIG. 6 is a schematic structural view of a baffle of the present invention;
FIG. 7 is a schematic view of the construction of the retardation plate of the present invention;
FIG. 8 is a schematic structural view showing the positional relationship between the shutter and the retardation plate according to the present invention;
fig. 9 is a schematic structural view of the handcart crank hole padlock device when the handcart crank hole padlock device is opened;
FIG. 10 is a schematic view of the mounting plate of the present invention;
fig. 11 is a schematic view of the handcart crank hole padlock device in a closed state;
FIG. 12 is a schematic structural view of the occluding assembly of the present invention;
FIG. 13 is a schematic structural view of a rear door panel and a viewing device in accordance with the present invention;
FIG. 14 is a diagram illustrating the explosion effect of the stop of the present invention;
FIG. 15 is a cross-sectional view of the stop of the present invention;
FIG. 16 is a schematic structural view of the base of the present invention;
FIG. 17 is a schematic view of the stopper of the present invention in an angled configuration;
FIG. 18 is a schematic view of the present invention showing the configuration of the built-in cabinet at one angle;
FIG. 19 is a schematic view of a first pressure relief assembly according to the present invention;
FIG. 20 is a schematic illustration of a second pressure relief assembly according to the present invention;
FIG. 21 is a schematic view of the structure of the gap plate at the bottom of the second frame body according to the present invention;
wherein: the handcart crank hole locking device comprises a main body 10, a front door plate 20, a rear door plate 30, an air inlet choke plugging device 40, a handcart crank hole locking device 50, a heat dissipation and pressure relief device 60 and an observation device 70;
the circuit breaker comprises a circuit breaker chamber 11, a bus chamber 12, a cable chamber 13, a first air inlet 21, a second air inlet 22, a pressure relief frame 23, a sealing plate 41, a main plate 411, a ventilation part 412, a first blocking plate 413, a baffle 42, a retardation plate 43, a base plate 431, a hinge plate 432, a hollow part 44, a first vertical plate 433, a mounting plate 51, a groove 511, a limiting column 512, a first through hole 513, a blocking component 52, a shielding plate 521, an extension plate 522, a second through hole 523, an insertion channel 53, a first pressure relief component 61, a first frame 611, an exhaust vent 612, a first pressure relief plate 613, a second pressure relief component 62, a second frame 621, a gap plate 622, an induced draft fan 623, a ventilation opening 624, a second pressure relief plate 625, an infrared detection component 71, a charged display component 72, an illumination component 73, a stopper 74, a base 741, a concave groove 11, a third through hole 7412 pull handle, 742, a hand lifting part 7421, a rotary block 7422, The receiving hole 7423, the positioning hole 7424, the telescopic column 743, the column 7431, the column head 7432, the connecting portion 7433, the elastic member 744, and the positioning screw 745.
[ detailed description ] embodiments
The following examples are further illustrative and supplementary to the present invention and do not limit the present invention in any way.
As shown in fig. 1 to 8, a middle cabinet for preventing arcing airflow includes a main body 10, a front door panel 20, a rear door panel 30, an air intake choke blocking device 40, a handcart crank hole locking device 50, a heat dissipation pressure relief device 60, and an observation device 70, where the air intake choke blocking device 40 is disposed between the main body 10 and the front door panel 20, the handcart crank hole locking device 50 is disposed on the front door panel 20, the handcart crank hole locking device 50 is located above the air intake choke blocking device 40, the heat dissipation pressure relief device 60 is disposed at the top of the main body 10, and the observation device 70 is disposed between the main body 10 and the rear door panel 30;
the air intake blocking and plugging device 40 comprises a sealing plate 41, a baffle plate 42, a retarding plate 43 and a hollow part 44, wherein the sealing plate 41 is arranged in the main body 10, the hollow part 44 is arranged between the sealing plate 41 and the front door panel 20, the baffle plate 42 and the retarding plate 43 are arranged in the hollow part 44, and the baffle plate 42 is positioned above the retarding plate 43;
the sealing plate 41 comprises a main plate 411, a ventilation part 412 and a first blocking plate 413, the ventilation part 412 is arranged at the upper half part of the main plate 411, the ventilation part 412 is communicated with the inside of the centrally-installed switchgear, the first blocking plate 413 is arranged below the ventilation part 412, the first blocking plate 413 is hinged to the main plate 411, a shock wave caused by the explosion of the arcing gas flow hits the first blocking plate 413, and the first blocking plate 413 falls down towards the direction of the vacant part 44;
the retardation plate 43 comprises a base plate 431, a hinge plate 432 and a first vertical plate 433, the base plate 431 is connected with the main plate 411, one end of the hinge plate 432 is hinged with the base plate 431, the other end of the hinge plate 432 is connected with the first vertical plate 433, the hinge plate 432 is impacted by the blasting airflow passing through the first blocking plate 413 and the baffle plate 42, and the hinge plate 432 falls down towards the direction of the vacant part 44 to further block the arcing airflow.
Further, the front door panel 20 includes a first air inlet 21, a second air inlet 22 and a pressure releasing frame 23, the first air inlet 21 is disposed at the bottom of the front door panel 20, the second air inlet 22 is disposed on the front door panel 20, the second air inlet 22 is located above the first air inlet 21, and the pressure releasing frame 23 is disposed at a position of the main body 10 opposite to the second air inlet 22.
Further, the first air inlet 21 and the second air inlet 22 are both provided with stainless steel wire meshes, and the diameter of the stainless steel wire mesh is not less than 0.5 mm.
The air intake blocking and blocking device 40 mainly comprises a sealing plate 41, a hollow part 44, a baffle 42 and a retarding plate 43, when the built-in cabinet explodes, the arcing air flow gushes out outwards, firstly passes through a first blocking plate 413 and a ventilation part 412 on the sealing plate 41, a part of the arcing air flow enters the hollow part 44 through the ventilation part 412, and impacts the first blocking plate 413, so that the strong impact force can cause the first blocking plate 413 to topple over at the hinged part of the main plate 411, thereby leading the first blocking plate 413 to topple over towards the hollow part 44, and blocking the hollow part 44, organizing the arcing air flow to rush out of the built-in cabinet, preventing objects larger than 60g from rushing out, and not reaching the international standard, wherein the first blocking plate 413 can weaken the impact of the arcing air flow to a certain degree, which is a first preventive measure, if the air flow generated by the arcing air flow explosion is too large and too strong, the hinge joint between the first blocking plate 413 and the main plate 411 is broken, at this time, the first blocking plate 413 falls into the empty part 44, and cannot continuously resist the arcing airflow, at this time, the baffle plate 42 and the retardation plate 43 in the empty part 44 respectively take the second and third preventive measures, firstly, the arcing airflow passes through the first blocking plate 413 and enters the empty part 44, the strong airflow first impacts the baffle plate 42, the impact force of partial arcing airflow is counteracted by the baffle plate 42, and the impact force of multiple repeated impacts in the baffle plate 42 enters the retardation plate 43 of the next valve, the retardation plate 43 can further weaken the impact force of the arcing airflow, if the arcing airflow still has a large impact force, because the top of the base plate 431 and the hinge plate 432 are hinged, the hinge plate 432 is inclined towards the empty part 44 after being impacted by the airflow, and blocks the empty part 44, after multiple impacts, the hinged relationship between the hinged plate 432 and the base plate 431 is broken, so that the hinged plate 432 falls into the hollow part 44, the power of the arc gas flow is greatly reduced compared with the original strong impact after the arc gas flow is weakened by the first blocking plate 413, the baffle plate 42 and the hinged plate 432 for three times, the remaining arc gas flow can rush out of the middle cabinet from the first air inlet 21 and the second air inlet 22, specifically, the first air inlet 21 and the second air inlet 22 are taken as a fourth precaution measure, the first stainless steel wire net and the second stainless steel wire net are respectively installed at the pressure relief frame 23 of the first air inlet 21 and the second air inlet 22, and the diameters of the first stainless steel wire net and the second stainless steel wire net are not less than 0.5mm, so that objects with larger diameters or objects with weights of more than 60g can not rush out of the first air inlet 21 and the second air inlet 22 directly, avoid causing unnecessary damage, also accord with national pressure release standard.
Similarly, the above-mentioned air intake blocking and plugging device 40 is also disposed between the rear door panel 30 and the main body 10, and will not be described in detail herein.
According to the invention, the first blocking plate 413 is hinged with the main plate 411 to form a first measure for weakening the arcing airflow, the baffle plate 42 is arranged to form a second measure for weakening, the base plate 431 is hinged with the hinged plate 432 to form a third measure for weakening, and the baffle plate 42 and the retardation plate 43 are matched with each other to form a labyrinth structure, so that the impact force of the arcing airflow is greatly weakened, the loss is reduced to the minimum, and no object exceeding the weight flies out of the middle cabinet, so that the intermediate cabinet meets the international standard.
As shown in fig. 2, the main body 10 includes a circuit breaker chamber 11, a bus bar chamber 12 and a cable chamber 13, the circuit breaker chamber 11 is disposed at one end of the main body 10 close to the front door panel 20, the cable chamber 13 is disposed at one end of the main body 10 close to the rear door panel 30, and the bus bar chamber 12 is disposed between the circuit breaker chamber 11 and the cable chamber 13.
As shown in fig. 18 to 21, the heat dissipation and pressure relief device 60 includes a first pressure relief assembly 61 and two second pressure relief assemblies 62, the first pressure relief assembly 61 is disposed on the top of the cable chamber 13 and is communicated with the cable chamber 13, and the two second pressure relief assemblies 62 are respectively disposed on the tops of the circuit breaker chamber 11 and the bus bar chamber 12 and are respectively communicated with the circuit breaker chamber 11 and the bus bar chamber 12.
The first pressure relief assembly 61 includes a first frame body 611, the bottom of the first frame body 611 is communicated with the cable chamber 13, a plurality of air outlets 612 are arranged on the outer side wall of the first frame body 611, a stainless steel wire mesh is arranged in the air outlets 612, a first pressure relief plate 613 is arranged at the top of the first frame body 611, the first pressure relief plate 613 is hinged to the side wall of the first frame body 611, when an arc airflow rushes out from the cable chamber 13, the first pressure relief plate 613 rotates around the side wall of the first frame body 611 to perform a pressure relief operation, and a rotation angle of the first pressure relief plate 613 is between 0 ° and 90 °;
second pressure release subassembly 62 includes second framework 621, the bottom and the bus-bar room 12 intercommunication of second framework 621, the bottom of second framework 621 is equipped with gap plate 622, be equipped with draught fan 623 in the second framework 621, the top of second framework 621 is equipped with vent 624, and the indoor heat of bus-bar passes through in the bus-bar room successively follow vent 624 effluvium behind gap plate 622 and the draught fan 623, the lateral wall of second framework 621 is equipped with second pressure release board 625, second pressure release board 625 with second framework 621 is articulated, and the indoor arcing airflow of bus-bar room 12 is followed second pressure release board 625 gives off to the external world.
The heat dissipation and pressure relief device 60 mainly comprises a first pressure relief assembly 61 and a second pressure relief assembly 62, wherein the first pressure relief assembly 61 is communicated with the cable chamber 13 in the main body 10, and the two second pressure relief assemblies 62 are respectively communicated with the bus chamber 12 and the breaker chamber 11 in the main body 10, when the built-in cabinet normally works, heat in the cable chamber 13, the bus chamber 12 and the breaker chamber 11 can be respectively emitted to the outside from the air outlet 612 of the first pressure relief assembly 61 and the air outlet 624 of the second pressure relief assembly 62, so as to ensure that the temperature in the cable chamber 13, the bus chamber 12 and the breaker chamber 11 is not too high (can not exceed 60 ℃, namely can not exceed the standard requirement of limiting temperature of the built-in cabinet, so as to meet the normal temperature rise of the built-in cabinet, keep the air circulation, when arcing airflow explosion occurs in the built-in cabinet, the first pressure relief assembly 61 and the second pressure relief assembly 62 play a good pressure relief role, specifically, the first pressure relief assembly 61 includes a first frame 611, the bottom of the first frame 611 is communicated with the cable chamber 13, a plurality of air outlets 612 are disposed on the outer sidewall of the first frame 611, a stainless steel mesh is disposed in the air outlets 612, a first pressure relief plate 613 is disposed at the top of the first frame 611, the first pressure relief plate 613 is hinged to the sidewall of the first frame 611, when the arc air current rushes out from the cable chamber 13, the first pressure relief plate 613 rotates around the sidewall of the first frame 611 to perform a pressure relief operation, and a rotation angle of the first pressure relief plate 613 is between 0 ° and 90 °; the second pressure relief assembly 62 comprises a second frame body 621, the bottom of the second frame body 621 is communicated with the bus chamber 12 and the breaker chamber 11, a gap plate 622 is arranged at the bottom of the second frame body 621, an induced draft fan 623 is arranged in the second frame body 621, a vent 624 is arranged at the top of the second frame body 621, heat in the bus chamber 12 and the breaker chamber 11 sequentially passes through the gap plate 622 and the induced draft fan 623 and then is dissipated from the vent 624, a second pressure relief plate 625 is arranged on the side wall of the second frame body 621, the second pressure relief plate 625 is hinged to the second frame body 621, and arc airflow in the bus chamber 12 and the breaker chamber 11 is dissipated to the outside from the second pressure relief plate 625.
To be more specific, when the arcing gas stream explodes, the first pressure relief plate 613 in the first pressure relief assembly 61 is pushed open by the gas stream in the high pressure generated by the arcing gas stream explosion, so that the first pressure relief plate 613 is in an open state, the arcing gas stream is flushed out from the top of the first pressure relief assembly 61, meanwhile, a part of the arcing gas stream is exhausted out of the cable chamber 13 through the air outlet 612 on the side wall of the first frame 611, and because the air outlet 612 is provided with the stainless steel net, the situation that the arcing gas stream brings parts exceeding 60g in the cable chamber 13 out of the cable chamber 13 can be well avoided, the safety index of the centrally installed cabinet is met, when the centrally installed cabinet normally works, the heat in the cable chamber 13 is brought out of the first pressure relief assembly 61 through the air outlet 612, so that the temperature in the cable chamber 13 is not too high (not exceeding 60 ℃, and meeting the requirement of the centrally installed international cabinet standard temperature rise), the temperature does not exceed the maximum value limited by the temperature rise in the cabinet.
When an arc-burning airflow explodes, the second pressure relief plate 625 in the second pressure relief assembly 62 is pushed open by the airflow in the high pressure generated by the arc-burning airflow explosion, and because the second pressure relief plate 625 and the second frame 621 are hinged, the second pressure relief plate 625 can be kept in a continuously open state under the impact generated by the explosion, so that the arc-burning airflow is exhausted from the bus chamber 12 and the breaker chamber 11, meanwhile, part of the arc-burning airflow is exhausted from the bus chamber 12 and the breaker chamber 11 through the vent 624 at the top of the second frame 621, when the built-in cabinet normally works, under the action of the induced draft fan 623, heat can be extracted from the bus chamber 12 and the breaker chamber 11 to the vent 624, and the second pressure relief assembly 62 is exhausted from the vent 624, so that the temperature in the bus chamber 12 and the breaker chamber 11 below cannot be too high.
According to the invention, the first pressure relief assembly 61 and the second pressure relief assembly 62 are arranged at the top of the main body 10, so that the temperature in the cable chamber 13, the bus chamber 12 and the breaker chamber 11 in the middle-placed cabinet is not too high, heat can be discharged out of the middle-placed cabinet at the first time, and the middle-placed cabinet can work normally, and the explosion pressure generated by arc-burning airflow can be discharged well by arranging the first pressure relief plate 613 and the second pressure relief plate 625, so that the pressure in the middle-placed cabinet is discharged as much as possible, the damage degree of the middle-placed cabinet is reduced, and the gap plate 622 is arranged at the bottom of the second pressure relief assembly 62, so that small articles in the second pressure relief assembly 62 can be well prevented from falling into the bus chamber 12 and the breaker chamber 11, the phenomenon of current breakdown is caused, the situation of the arc-burning airflow is broken, and the possibility of accidents is reduced.
As shown in fig. 9-12, the handcart handle hole padlock device 50 includes a mounting plate 51, a plugging component 52 and a plugging channel 53, the plugging component 52 is slidably sleeved on the mounting plate 51, the plugging channel 53 is disposed on a side of the mounting plate 51 far away from the plugging component 52, and the plugging channel 53 penetrates through the mounting plate 51;
mounting panel 51 includes recess 511, grafting passageway 53 is located the middle part of recess 511, one side of grafting passageway 53 is equipped with spacing post 512, spacing post 512 is kept away from the one end of recess 511 is equipped with first through-hole 513.
The blocking component 52 includes a shielding plate 521, an extending plate 522 and a second through hole 523, the shielding plate 521 is slidably sleeved in the groove 511, the extending plate 522 is disposed on one side of the shielding plate 521 away from the groove 511, the extending plate 522 is matched with the limiting column 512, the second through hole 523 is disposed on the extending plate 522 at a position corresponding to the first through hole 513, when the blocking component 52 is closed, the extending plate 522 is in contact with the limiting column 512, and horizontal central axes of the first through hole 513 and the second through hole 523 coincide for hanging a key.
The handcart rocking handle hole hanging lock device 50 is mainly used for plugging a front door plate 20 of a middle-placed cabinet during the operation of the middle-placed cabinet, preventing arcing airflow from gushing out of the middle-placed cabinet from an insertion channel 53 during explosion of the middle-placed cabinet, causing damage to personnel and equipment, and meanwhile, being used for insertion and connection during replacement of the equipment in the middle-placed cabinet. Specifically, the handcart rocking handle hole hanging lock device 50 mainly comprises a mounting plate 51, a plugging component 52 and a plugging channel 53, wherein the mounting plate 51 is used for connecting the handcart rocking handle hole hanging lock device 50 to the middle-placed cabinet and provides a supporting point, the plugging component 52 is slidably arranged in a groove 511 of the mounting plate 51, the plugging channel 53 is arranged in the middle of the mounting plate 51 and penetrates through the mounting plate 51, when the middle-placed cabinet normally runs, a shielding plate 521 of the plugging component 52 covers the plugging channel 53, at the moment, an extension plate on the shielding plate 521 is in contact with a limiting column 512, keys are hung in a first through hole 513 and a second through hole 523, so that the shielding plate 521 cannot move, because the front door of the middle-placed cabinet shields the handcart rocking handle hole hanging lock device 50, the handcart rocking handle hole hanging lock device often only can leak out of the positions of the shielding plate 521 and the corresponding plugging channel 53, and because the shielding plate 521 well shields the plugging channel 53, therefore, even if the arc airflow in the middle-placed cabinet explodes, the arc airflow can be prevented from gushing out of the middle-placed cabinet from the plug-in channel 53, and damage to personnel is avoided.
When the equipment in the centrally installed switchgear needs to be replaced, the key (the padlock plate is arranged on the back of the mounting plate 51 and used for hanging the key) hung on the first through hole 513 and the second through hole 523 is firstly opened, the shielding plate 521 is moved leftwards until the plugging channel 53 is completely exposed, the plugging equipment can be conveniently inserted into the plugging channel 53 in the subsequent process, and the equipment can be replaced or charged.
The handcart rocking handle hole hanging lock device 50 is that the shutter 521 shelters from the plug-in channel 53 under the normal condition, because the qianmen of the middle cabinet shelters all the other parts of the handcart rocking handle hole hanging lock device 50, so the part that the whole handcart rocking handle hole hanging lock device 50 actually leaks is only plug-in channel 53 and shutter 521, seal the plug-in channel 53 through the shutter 521, avoid the outer leakage of arcing air current, when needing to use the plug-in channel 53, only need to move the shutter 521 aside and can leak the plug-in channel 53.
According to the invention, by arranging the plugging component 52, the arcing airflow in the middle-placed cabinet can be well prevented from rushing out of the middle-placed cabinet, so that unnecessary personnel damage is avoided, the plugging component 52 can move in the groove 511 by matching with the groove 511, accurate positioning is realized by the limiting column 512, the plugging component 52 can not completely shield the plugging channel 53, and the shielding plate 521 can be firmly locked by matching with the first through hole 513 and the second through hole 523, so that the risk of the arcing airflow leaking outwards is reduced.
As shown in fig. 13 to 17, the observation device 70 includes an infrared detection assembly 71, a charged display assembly 72 and an illumination assembly 73, the infrared detection assembly 71 is disposed in the middle of the main body 10, the charged display assembly 72 is disposed below the infrared detection assembly 71, the illumination assembly 73 is disposed below the charged display assembly 72, and a stopper 74 is disposed on each of the infrared detection assembly 71, the charged display assembly 72 and the illumination assembly 73 for controlling the open/close state of the infrared detection assembly 71, the charged display assembly 72 and the illumination assembly 73;
the position stopper 74 includes a base 741, a handle 742, a telescopic column 743, an elastic member 744 and a positioning screw 745, wherein one end of the base 741 contacts an outer surface of the door body, the other end of the base 741 is provided with a concave groove 7411, a third through hole 7412 is opened in a middle portion of the concave groove 7411, one end of the telescopic column 743 is inserted into the third through hole 7412, the telescopic column 743 penetrates through the door body, the elastic member 744 is sleeved on the telescopic column 743, the handle 742 is sleeved in the concave groove 7411, a receiving hole 7423 is provided in a middle portion of the handle 742, the other end of the telescopic column 743 is inserted into the receiving hole 7423, a positioning hole 7424 is provided at a top portion of the handle 742, the positioning screw 745 is inserted into the positioning hole 7424, and the positioning screw 745 is inserted into the telescopic column 743.
11. The center-mounted gas flow arc-proof cabinet as claimed in claim 9, wherein: the telescopic column 743 comprises a column 7431, a column head 7432 and a connecting part 7433, the column head 7432 is arranged at one end of the main body 10 close to the door body, the connecting part 7433 is arranged at one end of the column head 7432 close to the pull handle 742, one end of the elastic member 744 abuts against the column head 7432, the other end of the elastic member 744 abuts against the inner side wall of the base 741, the connecting part 7433 is inserted into the accommodating hole 7423, and the positioning screw 745 is inserted into the connecting part 7433;
the pull handle 742 further comprises a hand-held portion 7421 and a rotation block 7422, the rotation block 7422 is disposed in the concave groove 7411, and the hand-held portion 7421 is disposed on a side of the rotation block 7422 away from the concave groove 7411.
The observation device 70 mainly includes an infrared detection component 71, a charged display component 72, an illumination component 73 and a stopper 74, the stopper 74 is used for controlling the opening and closing functions of the infrared detection component 71, the charged display component 72 and the illumination component 73, specifically, the stopper 74 includes a base 741, a pull handle 742, a telescopic column 743, an elastic component 744 and a positioning screw 745, one end of the base 741 contacts with the outer surface of the door body, the other end of the base 741 is provided with a concave groove 7411, a third through hole 7412 is formed in the middle of the concave groove 7411, one end of the telescopic column 743 is inserted into the third through hole 7412, the telescopic column 743 penetrates through the door body, the elastic component 744 is sleeved on the telescopic column 743, the pull handle 742 is sleeved in the concave groove 7411, a receiving hole 7423 is formed in the middle of the pull handle 742, the other end of the telescopic column 743 is inserted into the receiving hole 7423, the top of the pull handle 742 is provided with a positioning hole 7424, the positioning screw 745 is inserted into the positioning hole 7424, and the positioning screw 745 is inserted into the telescopic column 743.
To be more specific, when the centrally installed switchgear normally works, the first sliding observation panel, the second sliding observation panel and the third sliding observation panel (all three observation panels are made of PC material) of the infrared detection assembly 71, the charged display assembly 72 and the illumination assembly 73 are all abutted against the telescopic post 743 of the position stopper 74, and specifically against the post head 74323 of the telescopic post 743, at this time, the observation panels (hereinafter, the sliding observation panels are all the first sliding observation panel, the second sliding observation panel and the third sliding observation panel) are not opened, but the user can directly observe the corresponding assembly through the observation panels from the outside, when the infrared detection assembly 71, the charged display assembly 72 and the illumination assembly 73 need to be adjusted, the position stopper 74 needs to be pulled out and rotated to open the observation panels, specifically, the user pulls out the handle 742, because the connecting portion 7433 of the telescopic column 743 is inserted into the accommodating hole 7423, and the positioning screw 745 in the positioning hole 7424 at the top of the handle 742 is inserted into the connecting portion 7433, when the handle 742 is pulled outwards, the telescopic column 743 is driven to move in the third through hole 7412 of the base 741, and the elastic member 744 outside the telescopic column 743 is compressed, so that the elastic member 744 is twisted during the process of pulling out and rotating the handle 742, so that the elastic member can not be normally reset, the telescopic column 743 can not be reinserted into the door body, at this time, the observation plate can not abut against the column head 7432 any more, and can move in the corresponding track, respectively, thereby exposing the infrared detector, the charged display and the lighting controller behind the observation plate for the user to operate, and when the adjustment is finished, the observation plate can be moved back, at this time, the handle 742 needs to be rotated (when the handle is pulled out, the handle rotates counterclockwise, and when the handle is reset, the handle rotates clockwise) by a certain angle, so that the elastic member 744 on the column 7431 of the telescopic column 743 can be changed from a twisted state to a normal compressed state, and the telescopic column 743 is reset at the same time, so that the telescopic column 743 is reinserted into the door body and abuts against the side surface of the observation plate, and the observation plate is prevented from moving transversely.
According to the invention, the position stopper 74 is arranged at the outer sides of the infrared detection assembly 71, the charged display assembly 72 and the illumination assembly 73, the opening and closing functions of the corresponding assemblies are controlled by the position stopper 74, so that the middle cabinet can be stabilized when in normal work, and the infrared detection assembly 71, the charged display assembly 72 and the illumination assembly 73 are arranged, so that a user can know the condition in the middle cabinet at the first time, the user can conveniently operate in time, accidents are avoided, and the risk is reduced.
Although the present invention has been described with reference to the above embodiments, the scope of the present invention is not limited thereto, and modifications, substitutions and the like of the above members are intended to fall within the scope of the claims of the present invention without departing from the spirit of the present invention.
Claims (10)
1. The utility model provides a put cabinet in satisfying temperature rise and arcing requirement which characterized in that: the handcart rocking handle hole padlock device is arranged on the front door plate, the handcart rocking handle hole padlock device is positioned above the air inlet choking plugging device, the heat dissipation and pressure relief device is arranged at the top of the main body, and the observation device is arranged between the main body and the rear door plate;
the air inlet flow blocking and plugging device comprises a sealing plate, a baffle plate, a delay plate and a hollow part, wherein the sealing plate is arranged in the main body, the hollow part is arranged between the sealing plate and the front door plate, the baffle plate and the delay plate are arranged in the hollow part, and the baffle plate is positioned above the delay plate;
the sealing plate comprises a main plate, a ventilation opening and a first blocking plate, the ventilation opening is arranged at the upper half part of the main plate, the ventilation opening is communicated with the interior of the middle cabinet, the first blocking plate is arranged below the ventilation opening and is hinged with the main plate, shock waves caused by the explosion of the arcing airflow strike the first blocking plate, and the first blocking plate falls down towards the direction of the vacant part;
the delay plate comprises a base plate, a hinged plate and a first vertical plate, the base plate is connected with the main plate, one end of the hinged plate is hinged to the base plate, the other end of the hinged plate is connected with the first vertical plate, blasting airflow passing through the first blocking plate and the baffle plate impacts the hinged plate, and the hinged plate falls down towards the direction of the hollow part to further block arcing airflow.
2. The centrally-mounted switchgear capable of meeting temperature rise and arcing requirements of claim 1, wherein: the front door plate comprises a first air inlet, a second air inlet and a pressure relief frame, the first air inlet is formed in the bottom of the front door plate, the second air inlet is formed in the front door plate, the second air inlet is located above the first air inlet, and the pressure relief frame is arranged in the position, opposite to the second air inlet, of the main body.
3. The centrally-mounted switchgear capable of meeting temperature rise and arcing requirements of claim 2, wherein: first air intake with all be equipped with stainless steel net in the second air intake, and stainless steel net's diameter is not less than 0.5 mm.
4. The centrally-mounted switchgear capable of meeting temperature rise and arcing requirements of claim 1, wherein: the main part includes circuit breaker room, generating line room and cable chamber, the circuit breaker room is located the main part is close to the one end of preceding door plant, the cable chamber is located the main part is close to the one end of back door plant, the generating line room is located the circuit breaker room with between the cable chamber.
5. The centrally-mounted switchgear capable of meeting temperature rise and arcing requirements of claim 1, wherein: the heat dissipation and pressure relief device comprises a first pressure relief assembly and two second pressure relief assemblies, wherein the first pressure relief assembly is arranged at the top of the cable chamber and communicated with the cable chamber, and the second pressure relief assemblies are respectively arranged at the top of the circuit breaker chamber and the top of the bus chamber and communicated with the circuit breaker chamber and the bus chamber.
6. The centrally-mounted switchgear capable of meeting temperature rise and arcing requirements of claim 1, wherein: the first pressure relief assembly comprises a first frame body, the bottom of the first frame body is communicated with the cable chamber, a plurality of air outlets are formed in the outer side wall of the first frame body, stainless steel wire meshes are arranged in the air outlets, a first pressure relief plate is arranged at the top of the first frame body and hinged to the side wall of the first frame body, when the arcing airflow in the cable chamber is flushed out, the first pressure relief plate can rotate around the side wall of the first frame body to perform pressure relief operation, and the rotation angle of the first pressure relief plate is 0-90 degrees;
the second pressure release subassembly includes the second framework, the bottom and the generating line room intercommunication of second framework, the bottom of second framework are equipped with the gap plate, be equipped with the draught fan in the second framework, the top of second framework is equipped with the vent, and the indoor heat of generating line passes through successively follow the vent effluvium behind gap plate and the draught fan, the lateral wall of second framework is equipped with the second pressure release board, the second pressure release board with the second framework is articulated, and the indoor arcing air current of generating line is followed the second pressure release board gives off to the external world.
7. The centrally-mounted switchgear capable of meeting temperature rise and arcing requirements of claim 1, wherein: the handcart rocking handle hole padlock device comprises a mounting plate, a plugging component and a plugging channel, wherein the plugging component is slidably sleeved on the mounting plate, the plugging channel is arranged on one side of the mounting plate, which is far away from the plugging component, and the plugging channel penetrates through the mounting plate;
the mounting panel includes the recess, the grafting passageway is located the middle part of recess, one side of grafting passageway is equipped with spacing post, spacing post is kept away from the one end of recess is equipped with first through-hole.
8. The centrally-mounted switchgear capable of meeting temperature rise and arcing requirements of claim 7, wherein: the shutoff subassembly includes sunshade, extension board and second through-hole, sunshade slidable ground cover is located in the recess, the extension board is located the sunshade is kept away from one side of recess, just the extension board with spacing post phase-match, the second through-hole is located on the extension board with the corresponding position of first through-hole, work as when the shutoff subassembly is closed, the extension board with spacing post contact, first through-hole with the coincidence of the horizontal axis of second through-hole for hang the lock key.
9. The centrally-mounted switchgear capable of meeting temperature rise and arcing requirements of claim 1, wherein: the observation device comprises an infrared detection assembly, an electrified display assembly and an illumination assembly, wherein the infrared detection assembly is arranged in the middle of the main body, the electrified display assembly is positioned below the infrared detection assembly, the illumination assembly is positioned below the electrified display assembly, and a stopper is arranged on one side of each of the infrared detection assembly, the electrified display assembly and the illumination assembly and used for controlling the opening and closing states of the infrared detection assembly, the electrified display assembly and the illumination assembly;
the stopper includes base, handle, flexible post, elastic component and set screw, the one end of base with the surface contact of the door body, the other end of base is equipped with the recess, the through-hole has been seted up at the middle part of recess, the one end of flexible post is inserted in the through-hole, just flexible post runs through the door body, the elastic component cover is located on the flexible post, the handle cover is located in the recess, the middle part of handle is equipped with the accommodation hole, the other end of flexible post inserts in the accommodation hole, the top of handle is equipped with the locating hole, set screw inserts in the locating hole, just set screw inserts in the flexible post.
10. The centrally-mounted switchgear capable of meeting temperature rise and arcing requirements of claim 9, wherein: the telescopic column comprises a column body, a column head and a connecting part, the column head is arranged at one end, close to the door body, of the main body, the connecting part is arranged at one end, close to the handle, of the column head, one end of the elastic part abuts against the column head, the other end of the elastic part abuts against the inner side wall of the base, the connecting part is inserted into the accommodating hole, and the positioning screw is inserted into the connecting part;
the handle further comprises a hand-held part and a rotating block, the rotating block is arranged in the groove, and the hand-held part is arranged on one side, far away from the groove, of the rotating block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111020158.1A CN113644576A (en) | 2021-09-01 | 2021-09-01 | Centrally installed switchgear capable of meeting temperature rise and arcing requirements |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111020158.1A CN113644576A (en) | 2021-09-01 | 2021-09-01 | Centrally installed switchgear capable of meeting temperature rise and arcing requirements |
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| CN113644576A true CN113644576A (en) | 2021-11-12 |
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| CN202111020158.1A Pending CN113644576A (en) | 2021-09-01 | 2021-09-01 | Centrally installed switchgear capable of meeting temperature rise and arcing requirements |
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Address after: 528000 No. 2, industrial zone of "Da Keng Gang" section of Xiaotang Dongbian village committee, Shishan town, Nanhai District, Foshan City, Guangdong Province Applicant after: Guangdong Zhongna Electric Group Co.,Ltd. Address before: 528000 No. 2, industrial zone of "Da Keng Gang" section of Xiaotang Dongbian village committee, Shishan town, Nanhai District, Foshan City, Guangdong Province Applicant before: Guangdong zhongshengna Technology Co.,Ltd. |