CN202231335U - Pressure-releasing and heat-dissipating device for switch cabinet of direct current circuit breaker - Google Patents
Pressure-releasing and heat-dissipating device for switch cabinet of direct current circuit breaker Download PDFInfo
- Publication number
- CN202231335U CN202231335U CN2011202763165U CN201120276316U CN202231335U CN 202231335 U CN202231335 U CN 202231335U CN 2011202763165 U CN2011202763165 U CN 2011202763165U CN 201120276316 U CN201120276316 U CN 201120276316U CN 202231335 U CN202231335 U CN 202231335U
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- CN
- China
- Prior art keywords
- circuit breaker
- vertical square
- cover body
- pressure
- switch cubicle
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Abstract
The utility model discloses a pressure-releasing and heat-dissipating device for a switch cabinet of a direct current circuit breaker, which comprises a tubular window body and an insulating cover, wherein the insulating cover is coved at a pressure-releasing hole at the top of the switch cabinet and comprises a lower seat, a vertical square pipe is arranged in the middle of the lower seat, a lower port of the vertical square pipe on the lower seat is matched with the pressure-releasing hole, a cover body is covered on an upper port of the vertical square pipe, an exit is arranged on the lateral face of the cover body, a rotary cavity is arranged between the vertical square pipe and the cover body, the tubular window body is a hollow hexahedron, an exit is arranged on the top face of the tubular window body, a screen plate is arranged at the exit, a high-strength flame-retardant insulating plate is arranged on one lateral face of the tubular window body and is provided with an entrance, the tubular window body is arranged on a cabinet body of the switch cabinet through one side provided with the high-strength flame-retardant insulating plate, and the entrance of the high-strength flame-retardant insulating plate corresponds to the exit on the lateral face of the cover body. With the adoption of the pressure-releasing and heat-dissipating device, thermal ionization gas sprayed from an arc extinguish chamber of the circuit breaker can be discharged, air pressure in the cabinet is reduced, meanwhile, the damage of residual arc voltage to the switch cabinet is prevented, external objects can be effectively prevented from falling into, and faults of the switch cabinet are reduced.
Description
Technical field
The utility model relates to the guard technology field of direct-current traction power supply protector, is specifically related to a kind of pressure release heat abstractor that is used for the dc circuit breaker switch cubicle.
Background technology
Be provided with the circuit breaker cart chamber in the cabinet of dc circuit breaker switch cubicle.Present dc circuit breaker switch cubicle is when guaranteeing that circuit breaker cut-offs D.C. high-current (particularly cut-offfing short circuit current); The thermal ionization gas that erupts out from arc-extinguishing chamber of circuit breaker can safe release pressure, and the part that all dc circuit breaker switch cubicle top is positioned at the arc-extinguishing chamber of circuit breaker top is made open.So can make external object fall into switch cubicle easily, influence the normal use of switch cubicle.If can make the part that dc circuit breaker switch cubicle top is positioned at arc-extinguishing chamber of circuit breaker top closed; The thermal ionization gas that erupts out during circuit breaker breaking direct current (particularly cut-offfing short circuit current) may influence switch cubicle periphery personnel and device security to the side pressure release.
The utility model content
The utility model technical problem to be solved is: provide a kind of external object that can prevent to fall into the pressure release heat abstractor that is used for the dc circuit breaker switch cubicle that switch cubicle can in time be discharged the thermal ionization gas that arc-extinguishing chamber of circuit breaker erupts out again; Thereby better protection reduces the generation of switch cubicle fault simultaneously through the safety of switch cubicle periphery personnel, peripheral equipment.
The utility model technical problem to be solved realizes through following technical scheme: be used for the pressure release heat abstractor of dc circuit breaker switch cubicle, comprise tubulose forms and the insulating cover that covers on pressure relief opening place, switch cubicle top;
Described insulating cover comprises: be following of vertical square tube in the middle of one, the following seat upward lower port of vertical square tube cooperates with described pressure relief opening, is covered with the cover body that the side is provided with outlet on the port, is formed with the chamber of circling round outside the described vertical square tube and between cover body;
Described tubulose forms are the hexahedron of hollow; End face is provided with outlet and the exit is provided with web plate; One side is the high-strength anti-flaming insulation board and has inlet; The tubulose forms are installed on the switch cabinet body through the side that the high-strength anti-flaming insulation board is housed, and the high-strength anti-flaming insulation board enters the mouth corresponding to described cover body side exit.
Described high-strength anti-flaming insulation board upper inlet is located at high-strength anti-flaming insulation board upside, like this, even there is exterior object to fall down from web plate, also can be insulated the plate shelves in the switch cubicle outside.
The thermal ionization gas that arc-extinguishing chamber of circuit breaker erupts out (episome and harmful substance); Earlier get into vertical square tube through pressure relief opening; Vertically continuing to rise in the square tube; Port place ejection near the vertical square tube of cover body gets into the chamber of circling round, and is provided with the outlet ejection of web plate again from the tubulose forms through the cover body side exit.Why vertical square tube is set starts from following reason:
1, increased time of cooling of the thermal ionization gas of arc-extinguishing chamber of circuit breaker eruption; If vertical square tube is not set; The thermal ionization gas cooled time of arc-extinguishing chamber of circuit breaker eruption is shorter; And also can mix with this chilled gas in the chamber of circling round after getting into the chamber of circling round, the gas that causes part fully not cooled off is ejected.Can cause injury to the people of peripheral equipment or peripheral process like this; In addition, vertical square tube is set, can lets the remaining electric arc of arc-extinguishing chamber of circuit breaker in the long-channel of vertical square tube, fully extinguish, prevent that remaining electric arc from causing damage to switch cubicle;
2, vertical square tube is set, the thermal ionization gas of arc-extinguishing chamber of circuit breaker eruption rises to earlier near place, cover body top, and during ejection, air-flow is under the stopping of cover body, and to side diffusion, so not only cold and hot gas obtains separating, and airflow smooth.
Described vertical square tube inwall is provided with several strip grooves, can enlarge the cross-sectional area of vertical square tube on the one hand, the prior booster action that has played vertical square tube inwall.
The lateral edge of described cover body is provided with draw-in groove, and the utility model pressure release heat abstractor is installed in the cabinet through draw-in groove, prevents that its position from squinting, and influences result of use.
Relative prior art, the beneficial effect of the utility model:
1, the utility model can in time be discharged the thermal ionization gas that arc-extinguishing chamber of circuit breaker erupts out, alleviates the air pressure in the cabinet, prevents the infringement that remaining arc voltage causes switch cubicle simultaneously, and can effectively stop exterior object to be fallen into, and reduces the generation of switch cubicle fault;
2, tubulose forms end face is located in outlet, and air-flow is ejection upwards, and protection is through the safety of switch cubicle periphery personnel, peripheral equipment.
Description of drawings
Fig. 1 is the user mode figure of the utility model preferred embodiment;
The insulating cover stereogram of Fig. 2 the utility model preferred embodiment;
The stereogram at another visual angle of insulating cover of Fig. 3 the utility model preferred embodiment;
The explosive view of Fig. 4 the utility model preferred embodiment.
Embodiment
Below, in conjunction with accompanying drawing the utility model is further described:
As shown in Figure 1, be provided with the circuit breaker cart chamber in the cabinet of dc circuit breaker switch cubicle, the indoor arc control device that are provided with circuit breaker 5 of circuit breaker cart, top, circuit breaker cart chamber be provided with pass straight through to cabinet outside with the corresponding pressure relief opening of arc-extinguishing chamber of circuit breaker.
Like Fig. 1, shown in 2, the pressure release heat abstractor of the utility model comprises tubulose forms 3 and the insulating cover 1 that covers on pressure relief opening place, switch cubicle top; Described insulating cover 1 comprises in the middle of one and is following of vertical square tube 8, and the following seat upward lower port of vertical square tube 8 cooperates with described pressure relief opening, is covered with the cover body that the side is provided with outlet on the port, outside the described vertical square tube 8 and be formed with the chamber of circling round between cover body.
Like Fig. 1, shown in 2; The thermal ionization gas that arc-extinguishing chamber of circuit breaker erupts out, the vertical square tube 8 that gets into insulating cover 1 inside earlier through pressure relief opening is vertically continuing to rise in the square tube 8; In port place ejection near cover body; The entering chamber of circling round is again through the cover body side exit, from tubulose forms 3 end faces outlet ejection.Arrow is represented the flow direction of air-flow.
As shown in Figure 4; Described tubulose forms 3 are the hexahedron of hollow; End face is provided with outlet and the exit is provided with web plate; One side is high-strength anti-flaming insulation board 2 and has inlet, and tubulose forms 3 are installed on the switch cabinet body through the side that high-strength anti-flaming insulation board 2 is housed, and high-strength anti-flaming insulation board 2 inlets are corresponding to described cover body side exit.Described tubulose forms 3 outlet levels upwards and be provided with web plate so both can stop that exterior object fell into, again because upwards ejection of air-flow can be protected the safety through switch cubicle periphery personnel, peripheral equipment.In the present embodiment, described end face is the web plate 4 that a degree of protection is IP2X.
Described high-strength anti-flaming insulation board 2 is provided with inlet, and inlet is located at high-strength anti-flaming insulation board 2 upsides, like this, even there is exterior object to fall down from web plate, also can be insulated the plate shelves in the switch cubicle outside.
As shown in Figure 2; Described vertical square tube inwall is provided with the strip groove 6 that several cross sections are semicircle; The design of groove 6 can enlarge the cross-sectional area of vertical square tube on the one hand, and the prior booster action that has played vertical square tube inwall is quite like reinforcement.
As shown in Figure 3, the lateral edge of described cover body is provided with draw-in groove 7, and the utility model pressure release heat abstractor is installed in the cabinet through draw-in groove, prevents that its position from squinting, and influences result of use.
As shown in Figure 2; The thermal ionization gas that arc-extinguishing chamber of circuit breaker gushes out gets into vertical square tube through pressure relief opening; Vertically continuing to rise in the square tube, cooled off more fully, the remaining electric arc of arc-extinguishing chamber of circuit breaker is fully extinguished in the long-channel of vertical square tube simultaneously; The people of process, the safety of surrounding devices prevent that remaining electric arc from causing damage to switch cubicle around better having guaranteed.When gas sprayed from vertical square tube outlet, air-flow stopped at the cover body top down, to side diffusion, realize cold and hot gas separations, and air-flow is more smooth and easy.
Claims (4)
1. be used for the pressure release heat abstractor of dc circuit breaker switch cubicle, it is characterized in that: comprise tubulose forms and the insulating cover that covers on pressure relief opening place, switch cubicle top;
Described insulating cover comprises: be following of vertical square tube in the middle of one, the following seat upward lower port of vertical square tube cooperates with described pressure relief opening, is covered with the cover body that the side is provided with outlet on the port, is formed with the chamber of circling round outside the described vertical square tube and between cover body;
Described tubulose forms are the hexahedron of hollow; End face is provided with outlet and the exit is provided with web plate; One side is the high-strength anti-flaming insulation board and has inlet; The tubulose forms are installed on the switch cabinet body through the side that the high-strength anti-flaming insulation board is housed, and the high-strength anti-flaming insulation board enters the mouth corresponding to described cover body side exit.
2. the pressure release heat abstractor that is used for the dc circuit breaker switch cubicle according to claim 1 is characterized in that: described high-strength anti-flaming insulation board upper inlet is located at high-strength anti-flaming insulation board upside.
3. the pressure release heat abstractor that is used for the dc circuit breaker switch cubicle according to claim 2 is characterized in that: described vertical square tube inwall is provided with several strip grooves.
4. the pressure release heat abstractor that is used for the dc circuit breaker switch cubicle according to claim 2, it is characterized in that: the lateral edge of described cover body is provided with draw-in groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202763165U CN202231335U (en) | 2011-08-01 | 2011-08-01 | Pressure-releasing and heat-dissipating device for switch cabinet of direct current circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202763165U CN202231335U (en) | 2011-08-01 | 2011-08-01 | Pressure-releasing and heat-dissipating device for switch cabinet of direct current circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202231335U true CN202231335U (en) | 2012-05-23 |
Family
ID=46081909
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202763165U Expired - Lifetime CN202231335U (en) | 2011-08-01 | 2011-08-01 | Pressure-releasing and heat-dissipating device for switch cabinet of direct current circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202231335U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9362075B2 (en) | 2013-12-03 | 2016-06-07 | General Electric Company | Cover assembly for circuit breaker, circuit breaker having the same, and method |
| CN108879460A (en) * | 2018-07-16 | 2018-11-23 | 向荣集团有限公司 | A kind of switchgear of operational safety |
| CN111525419A (en) * | 2020-05-09 | 2020-08-11 | 裕成电器有限公司 | Metal enclosed switch cabinet with arcing blocking device |
-
2011
- 2011-08-01 CN CN2011202763165U patent/CN202231335U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9362075B2 (en) | 2013-12-03 | 2016-06-07 | General Electric Company | Cover assembly for circuit breaker, circuit breaker having the same, and method |
| CN108879460A (en) * | 2018-07-16 | 2018-11-23 | 向荣集团有限公司 | A kind of switchgear of operational safety |
| CN111525419A (en) * | 2020-05-09 | 2020-08-11 | 裕成电器有限公司 | Metal enclosed switch cabinet with arcing blocking device |
| CN111525419B (en) * | 2020-05-09 | 2021-09-17 | 裕成电器有限公司 | Metal enclosed switch cabinet with arcing blocking device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120523 |