CN211579380U - Inflating cabinet - Google Patents
Inflating cabinet Download PDFInfo
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- CN211579380U CN211579380U CN201922462355.3U CN201922462355U CN211579380U CN 211579380 U CN211579380 U CN 211579380U CN 201922462355 U CN201922462355 U CN 201922462355U CN 211579380 U CN211579380 U CN 211579380U
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- arcing
- pressure relief
- relief channel
- arc
- baffle
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Abstract
The utility model discloses an inflatable cabinet, which comprises an inflatable box body, a cable chamber and an arcing pressure relief channel; the arcing pressure relief channel is arranged on one side of the inflation box body and one side of the cable chamber, is independent of the whole inflation cabinet and is tightly connected with the inflation box body; the lower end of the arcing pressure relief channel is sealed, and the top of the arcing pressure relief channel is provided with an explosion-proof valve for releasing instantaneous airflow; a first side cover plate in the arcing pressure relief channel is provided with a plurality of first arcing baffles, and a second side cover plate in the arcing pressure relief channel is provided with a plurality of second arcing baffles; each first arc-burning baffle and each second arc-burning baffle are alternately arranged and form a channel with the cover plates at two sides of the arc-burning pressure-relief channel; each first arcing baffle and the first side cover plate in the arcing pressure relief channel form an acute angle, and each second arcing baffle and the second side cover plate in the arcing pressure relief channel form an acute angle. The utility model provides an aerify cabinet can avoid adjacent damage of aerifing the cabinet, can ensure the personal safety of the relevant personnel of site operation simultaneously.
Description
Technical Field
The utility model belongs to the technical field of electrical equipment, a aerify cabinet is related to.
Background
The switch cabinet is used for opening, closing, controlling and protecting electric equipment (an inflatable cabinet is one type of switch cabinet) in the process of generating, transmitting, distributing and converting electric energy of an electric power system. In the switchgear, the occurrence probability of arcing faults is low, but the arcing faults cannot be completely avoided, and once faults occur, the high temperature and the high pressure of the stroke in a short time cannot be completely avoided, so that the personnel and equipment are greatly damaged. Thus, the international electrotechnical commission and the various national standards bodies have made more specific regulations on internal arc faults and criteria. The national standard GB 3906 describes in detail a method for verifying internal arc faults, which after simulation of an internal arc fault requires that the housing does not crack, that no debris or other parts of the switchgear with a single mass of 60g and above fly out, that no holes are formed on the accessible surface with a height of not more than 2m by the arc burn through, and that hot gases or burning liquids do not ignite the indicator. These criteria make it necessary to meet higher requirements for structural strength, arrangement and instantaneous pressure relief of the internal arcing channels in a confined space.
In the prior art, a switch cabinet is generally provided with a closed type arcing pressure relief channel, which is not beneficial to quickly releasing instantaneously generated high-temperature high-gas according to a set channel; the channel occupies a large space when a certain pressure relief effect is required; the primary busbar in the inflatable box body dissipates heat slowly and is easy to generate condensation; the channel structure is set up complicacy, and mostly is not independent of the cabinet body outside, and assembly efficiency is lower.
Furthermore, the disadvantages of the known internal combustion arc channels are as follows: (1) the existing internal combustion arc channel is generally a closed type arc channel, so that heat dissipation is slow after a fault occurs, condensation is easy to generate, and the pressure relief effect is poor; (2) the existing internal combustion arc channel generally releases pressure backwards, the space required by pressure release is large, the pressure release path is short, the impact force cannot be quickly consumed and released, and other equipment and facilities are easily damaged; (3) the pressure release structure is complicated, and is not wholly independent of the switch cabinet body outside, resulting in high, the inefficiency of the assembly degree of difficulty.
In view of the above, there is a need to design a new inflatable cabinet structure to overcome the above-mentioned drawbacks of the existing inflatable cabinets.
SUMMERY OF THE UTILITY MODEL
The utility model provides an aerify cabinet can avoid the damage of adjacent cubical switchboard, can ensure the personal safety of the relevant personnel of site operation simultaneously.
For solving the technical problem, according to the utility model discloses an aspect adopts following technical scheme:
an inflatable cabinet, comprising: the gas-filled box body, the cable chamber and the arcing pressure relief channel; the arcing pressure relief channel is arranged on one side of the inflation box body and one side of the cable chamber, is independent of the whole inflation cabinet and is tightly connected with the inflation box body; the lower end of the arcing pressure relief channel is sealed, and the top of the arcing pressure relief channel is provided with an explosion-proof valve for releasing instantaneous airflow;
a first side cover plate in the arcing pressure relief channel is provided with a plurality of first arcing baffles, and a second side cover plate in the arcing pressure relief channel is provided with a plurality of second arcing baffles; each first arc-burning baffle and each second arc-burning baffle are alternately arranged and form a channel with the cover plates at two sides of the arc-burning pressure-relief channel;
each first arcing baffle and the first side cover plate in the arcing pressure relief channel form an acute angle, and each second arcing baffle and the second side cover plate in the arcing pressure relief channel form an acute angle.
As an implementation mode of the utility model, the planes of the first arcing baffles are parallel to each other; the planes of the second combustion arc baffle plates are parallel to each other.
As an implementation mode of the utility model, the planes of the first arcing baffles are parallel to each other; in each second arc baffle, the planes of a part of the second arc baffles are parallel to each other.
As an embodiment of the present invention, each first arcing baffle forms an angle of 45 ° with the first side cover plate in the arcing pressure relief passage, and each second arcing baffle forms an angle of 45 ° with the second side cover plate in the arcing pressure relief passage.
As an embodiment of the present invention, one side of the gas-filled cabinet is provided with an operation panel, an operation mechanism chamber and a control box, one side of the operation mechanism chamber is provided with an operation panel, and the top of the operation mechanism chamber is provided with a control box.
The beneficial effects of the utility model reside in that: the utility model provides an aerify cabinet can avoid adjacent damage of aerifing the cabinet, can ensure the personal safety of the relevant personnel of site operation simultaneously.
The gas-filled cabinet is provided with an arc burning channel device which is simple, small in occupied space, strong in energy consumption and fast in heat dissipation; the design principle is as follows: the baffles in opposite directions are respectively arranged on two sides of the pressure relief channel right behind the pressure relief valve, the crossed baffles can lengthen the pressure relief path in the limited space, the released energy is consumed in a grading way, the energy and the heat are sequentially decreased progressively in the crossed baffles in opposite directions, and high-temperature and high-pressure gas instantaneously generated after an arcing fault occurs can be rapidly released to the upper part of the channel from the channel, so that the pressure relief effect is maximized, and the damage to personal safety, equipment and the environment after the fault possibly occurs is reduced.
Drawings
Fig. 1 is a schematic structural view of an air-filled cabinet according to an embodiment of the present invention.
Fig. 2 is a schematic structural diagram of an air-filled cabinet according to an embodiment of the present invention.
Fig. 3 is a schematic structural diagram of an air-filled cabinet according to an embodiment of the present invention.
Fig. 4 is a schematic view illustrating the direction of the airflow in the gas-filled cabinet according to an embodiment of the present invention.
Detailed Description
The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
For further understanding of the present invention, preferred embodiments of the present invention will be described below with reference to examples, but it should be understood that these descriptions are only for the purpose of further illustrating the features and advantages of the present invention, and are not intended to limit the claims of the present invention.
The description in this section is for exemplary embodiments only, and the present invention is not limited to the scope of the embodiments described. The same or similar prior art means and some technical features of the embodiments are mutually replaced and are also within the scope of the description and the protection of the invention.
The utility model discloses an inflatable cabinet, and fig. 1 to 3 are schematic structural views of the inflatable cabinet in an embodiment of the utility model; referring to fig. 1 to 3, the gas-filled cabinet includes: an inflation box body 5, a cable chamber 1 and an arc burning pressure relief channel 6; the arcing pressure relief channel 6 is arranged on one side of the inflation box body 5 and one side of the cable chamber 1, is independent of the whole inflation cabinet, and is tightly connected with the inflation box body 5; the lower end of the arcing pressure relief channel 6 is sealed, and the top of the arcing pressure relief channel 6 is provided with an explosion-proof valve for releasing instantaneous airflow.
In an embodiment of the present invention, the arcing pressure relief channel 6 is directly behind the inflation box 5 and the cable chamber 1, is independent of the whole inflation cabinet, and is closely connected to the inflation box 5. The lower end of the arcing pressure relief channel 6 is sealed, and the top of the arcing pressure relief channel 6 (provided with an explosion-proof valve) is used for releasing instantaneous airflow.
In an embodiment, an operation panel 2, an operation mechanism chamber 3 and a control box 4 may be further disposed on one side of the inflatable cabinet, the operation panel 2 is disposed on one side of the operation mechanism chamber 3, and the control box 4 is disposed above the operation mechanism chamber 3.
A plurality of first arc baffles 7 (box side arc baffles) are arranged on a first side cover plate 61 in the arc pressure relief channel 6, and a plurality of second arc baffles 8 (cover plate side arc baffles) are arranged on a second side cover plate 62 in the arc pressure relief channel 6; the first arcing baffles 7 and the second arcing baffles 8 are alternately arranged and form an arcing pressure relief channel 6 with the cover plates on two sides of the arcing pressure relief channel 6. Referring to fig. 3, a steel wire mesh cover plate 63 is arranged on the top of the arcing pressure relief channel 6.
FIG. 4 is a schematic view of the airflow direction in the inflatable cabinet according to an embodiment of the present invention; referring to fig. 4, in an embodiment of the present invention, after a fault, a high-temperature and high-pressure airflow flows in the arcing pressure relief channel 6 according to the direction of the arrow.
Each first arcing baffle 7 forms an acute angle with a first side shield 61 in the arcing pressure relief channel 6 and each second arcing baffle 8 forms an acute angle with a second side shield 62 in the arcing pressure relief channel 6. In an embodiment of the present invention, the planes of the first arcing baffles 7 are parallel to each other; the planes of the second arc baffles 8 are parallel to each other. In one embodiment, the planes of the first arcing baffles 7 are parallel to each other (some or all of the first arcing baffles 7 may not be parallel to each other); in each of the second arc baffles 8, the planes in which a portion of the second arc baffles 8 lie are parallel to each other (some or all of the second arc baffles 8 may not be parallel to each other). In one embodiment, each first arcing baffle 7 forms an angle of 45 with a first side shield 61 in the arcing relief channel 6, and each second arcing baffle 8 forms an angle of 45 with a second side shield 62 in the arcing relief channel 6.
Referring to fig. 2, after simulating the ignition of an internal arc fault, high-temperature and high-pressure gas instantaneously generated breaks through the explosion-proof valve and impacts a support plate 9 outside the explosion-proof valve, the lower end of the support plate 9 is closed and fixed, and the upper end of the support plate is suspended, so that the support plate is slightly deformed by the impact of air flow; then, the gas flow impacts a box side arcing baffle (a first arcing baffle 7) along an outer supporting plate 9 of the explosion-proof valve, and then impacts an arcing channel cover plate (a second side cover plate 62); and an impact cover plate side arcing baffle (a second arcing baffle 8) is arranged along the arcing channel. One side of the arc baffle is fixed, the other side of the arc baffle is suspended, and both sides of the arc baffle are provided with folded edges to form a guide channel; the air flow sequentially rushes through the arcing baffles at the two sides, the heat and the pressure are sequentially reduced, and finally the air flow is released to the outside of the cabinet from the top steel wire mesh cover plate 63, and the air flow can be combined with the graph 4.
To sum up, the utility model provides an aerify cabinet can avoid adjacent damage of aerifing the cabinet, can ensure the personal safety of the relevant personnel of site operation simultaneously.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The description and applications of the present invention are illustrative and are not intended to limit the scope of the invention to the embodiments described above. Variations and modifications of the embodiments disclosed herein are possible, and alternative and equivalent various components of the embodiments will be apparent to those skilled in the art. It will be clear to those skilled in the art that the present invention may be embodied in other forms, structures, arrangements, proportions, and with other components, materials, and parts, without departing from the spirit or essential characteristics thereof. Other variations and modifications of the embodiments disclosed herein may be made without departing from the scope and spirit of the present invention.
Claims (5)
1. An inflatable cabinet, comprising: the gas-filled box body, the cable chamber and the arcing pressure relief channel; the arcing pressure relief channel is arranged on one side of the inflation box body and one side of the cable chamber, is independent of the whole inflation cabinet and is tightly connected with the inflation box body; the lower end of the arcing pressure relief channel is sealed, and the top of the arcing pressure relief channel is provided with an explosion-proof valve for releasing instantaneous airflow;
a first side cover plate in the arcing pressure relief channel is provided with a plurality of first arcing baffles, and a second side cover plate in the arcing pressure relief channel is provided with a plurality of second arcing baffles; each first arc-burning baffle and each second arc-burning baffle are alternately arranged and form a channel with the cover plates at two sides of the arc-burning pressure-relief channel;
each first arcing baffle and the first side cover plate in the arcing pressure relief channel form an acute angle, and each second arcing baffle and the second side cover plate in the arcing pressure relief channel form an acute angle.
2. An inflatable cabinet as claimed in claim 1, wherein:
the planes of the first arc-burning baffles are parallel to each other; the planes of the second combustion arc baffle plates are parallel to each other.
3. An inflatable cabinet as claimed in claim 1, wherein:
the planes of the first arc-burning baffles are parallel to each other; in each second arc baffle, the planes of a part of the second arc baffles are parallel to each other.
4. An inflatable cabinet as claimed in claim 1, wherein:
each first arcing baffle and the first side cover plate in the arcing pressure relief channel form an angle of 45 degrees, and each second arcing baffle and the second side cover plate in the arcing pressure relief channel form an angle of 45 degrees.
5. An inflatable cabinet as claimed in claim 1, wherein:
one side of the inflating cabinet is provided with an operation panel, an operation mechanism chamber and a control box, one side of the operation mechanism chamber is provided with the operation panel, and the control box is arranged above the operation mechanism chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922462355.3U CN211579380U (en) | 2019-12-31 | 2019-12-31 | Inflating cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922462355.3U CN211579380U (en) | 2019-12-31 | 2019-12-31 | Inflating cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211579380U true CN211579380U (en) | 2020-09-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922462355.3U Active CN211579380U (en) | 2019-12-31 | 2019-12-31 | Inflating cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211579380U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112653008A (en) * | 2020-12-15 | 2021-04-13 | 北京双杰电气股份有限公司 | Outdoor integral type SF6Ring main unit |
| CN113644576A (en) * | 2021-09-01 | 2021-11-12 | 广东中盛纳科技有限公司 | Centrally installed switchgear capable of meeting temperature rise and arcing requirements |
-
2019
- 2019-12-31 CN CN201922462355.3U patent/CN211579380U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112653008A (en) * | 2020-12-15 | 2021-04-13 | 北京双杰电气股份有限公司 | Outdoor integral type SF6Ring main unit |
| CN112653008B (en) * | 2020-12-15 | 2023-09-22 | 北京双杰电气股份有限公司 | Outdoor integrated SF 6 Ring main unit |
| CN113644576A (en) * | 2021-09-01 | 2021-11-12 | 广东中盛纳科技有限公司 | Centrally installed switchgear capable of meeting temperature rise and arcing requirements |
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