CN211701031U - Medium-voltage switchgear structure with dual protection - Google Patents
Medium-voltage switchgear structure with dual protection Download PDFInfo
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- CN211701031U CN211701031U CN202020641371.9U CN202020641371U CN211701031U CN 211701031 U CN211701031 U CN 211701031U CN 202020641371 U CN202020641371 U CN 202020641371U CN 211701031 U CN211701031 U CN 211701031U
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- cabinet body
- gas storage
- voltage switchgear
- medium voltage
- storage tank
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Abstract
The utility model relates to a medium voltage switchgear technical field, more specifically say, it relates to a medium voltage switchgear structure of dual protection, and its technical scheme main points are: the fire extinguisher cabinet comprises a cabinet body, wherein a gas storage tank is fixedly connected to the inner wall of the top of the cabinet body, a gaseous fire extinguishing agent is filled in the gas storage tank, gas supply equipment for providing the gaseous fire extinguishing agent is communicated with the outer side of the gas storage tank, an exhaust hole is formed in the side wall of the bottom of the gas storage tank, and a control assembly for controlling the opening and closing of the exhaust hole is arranged on the side wall of the gas storage tank; the control assembly comprises an air cylinder vertical to the top of the cabinet body and a stop block vertically fixed at the end part of a telescopic rod of the air cylinder, the telescopic rod of the air cylinder penetrates through the top of the air storage box, the stop block is hermetically connected with the exhaust hole, a temperature sensor is arranged in the cabinet body, a control switch for controlling the opening and closing of the air cylinder is arranged on the outer side of the cabinet body, and the temperature sensor, the control switch and the air cylinder are electrically connected; can realize automatic fire extinguishing when medium voltage switchgear is on fire, and then reduce the influence of fire to whole medium voltage switchgear performance.
Description
Technical Field
The utility model relates to a medium voltage switchgear technical field, more specifically say, it relates to a medium voltage switchgear structure of dual protection.
Background
The medium-voltage switch cabinet is used for power generation, power transmission, power distribution, electric energy conversion and consumption of an electric power system and plays roles of on-off, control or protection and the like, the medium-voltage switch cabinet is used as an electric appliance product with a voltage grade of 220V to 3.6kV, a medium-voltage isolating switch, a grounding switch, a medium-voltage load switch, a medium-voltage automatic coincidence and sectionalizer, a medium-voltage operating mechanism, a medium-voltage explosion-proof power distribution device, a medium-voltage switch cabinet and the like, and the medium-voltage switch cabinet is divided into a semi-closed medium-voltage switch cabinet, a box-type medium-voltage switch cabinet, a spaced medium-voltage switch cabinet and an armored medium-voltage switch cabinet according to the structure of the medium-voltage switch cabinet, and can be divided into an air-insulated medium-voltage switch cabinet, a composite insulated medium-voltage switch cabinet and an.
Present medium voltage switchgear can not automatic put out a fire when taking place the condition of a fire, can only receive the condition of a fire command by the manual work and open the cabinet body and put out a fire after, the electrical components in the cabinet has usually been burnt and damaged this moment, and then has influenced the influence of whole medium voltage switchgear's performance, so need improve.
SUMMERY OF THE UTILITY MODEL
Not enough to prior art exists, the utility model aims to provide a medium voltage switchgear structure of dual protection can realize automatic fire extinguishing when medium voltage switchgear plays on fire, and then has reduced the influence of fire to the performance of whole medium voltage switchgear.
The above technical purpose of the present invention can be achieved by the following technical solutions: a double-protection medium-voltage switch cabinet structure comprises a cabinet body, wherein a gas storage box is fixedly connected to the inner wall of the top of the cabinet body, a gaseous extinguishing agent is filled in the gas storage box, gas supply equipment for providing the gaseous extinguishing agent is communicated with the outer side of the gas storage box, an exhaust hole is formed in the side wall of the bottom of the gas storage box, and a control assembly for controlling the opening and closing of the exhaust hole is arranged on the side wall of the gas storage box;
the control assembly comprises an air cylinder perpendicular to the top of the cabinet body and a stop block vertically fixed at the end part of a telescopic rod of the air cylinder, the telescopic rod of the air cylinder penetrates through the top of the air storage box, the stop block is connected with an exhaust hole in a sealing mode, a temperature sensor is arranged in the cabinet body, a control switch used for controlling the air cylinder to be opened and closed is arranged on the outer side of the cabinet body, and the temperature sensor, the control switch and the air cylinder are electrically connected.
Through adopting above-mentioned technical scheme, when temperature sensor senses the internal portion of cabinet when on fire, trigger control switch to the telescopic link that makes the cylinder stretches out, and then drives the dog and slides, so that the exhaust hole is opened, and gaseous state fire extinguishing agent is discharged from the gas storage tank, with the fire of the internal portion of cabinet of coming out, and then has reduced the influence of fire to the performance of whole medium voltage switchgear.
The present invention may be further configured in a preferred embodiment as: the fixed cover of telescopic link of cylinder is equipped with the push pedal, the lateral wall of push pedal all with the lateral wall butt of gas storage tank, when the telescopic link of cylinder is in the shrink state, the upper surface of push pedal is contradicted with the top inner wall of gas storage tank.
Through adopting above-mentioned technical scheme, can drive the push pedal when the telescopic link of cylinder stretches out and move to exhaust hole from the top of gas storage box, the push pedal is released the gaseous state fire extinguishing agent in the gas storage box from the exhaust hole, and then has accelerated the discharge of gaseous state fire extinguishing agent to can improve the efficiency of putting out a fire.
The present invention may be further configured in a preferred embodiment as: the gaseous extinguishing agent is provided as heptafluoropropane.
By adopting the technical scheme, as the heptafluoropropane is not conductive, the precise circuit equipment in the cabinet body cannot be damaged.
The present invention may be further configured in a preferred embodiment as: the pore wall fixedly connected with heat-resisting sealing washer in exhaust hole, heat-resisting sealing washer is contradicted with the lateral wall of dog.
Through adopting above-mentioned technical scheme, the pore wall fixedly connected with heat-resisting sealing washer in hole of exhausting, heat-resisting sealing washer is contradicted with the lateral wall of dog, and then can strengthen the leakproofness between hole of exhausting and the dog to the condition that reduces gaseous state fire extinguishing agent and reveals takes place.
The present invention may be further configured in a preferred embodiment as: the internal portion intercommunication of cabinet has the blast pipe, the blast pipe is located the lateral wall of the cabinet body and communicates there is the air exhauster.
Through adopting above-mentioned technical scheme, heptafluoropropane is under high temperature state, probably can produce harmful gas such as carbon monoxide and carbon dioxide, and accessible air exhauster and blast pipe can also protect staff's personal safety when putting out a fire with the internal harmful gas discharge of cabinet, and then putting out a fire.
The present invention may be further configured in a preferred embodiment as: the top of the cabinet body is provided with an alarm which is electrically connected with the temperature sensor.
Through adopting above-mentioned technical scheme, when temperature sensor senses the internal portion of cabinet and fires, trigger alarm, the staff can be reminded to the warning sound of alarm and the condition is checked to further slow down stretching of the intensity of a fire.
The present invention may be further configured in a preferred embodiment as: and an observation window is arranged on the cabinet door of the cabinet body.
Through adopting above-mentioned technical scheme, the cabinet door of the cabinet body is provided with the observation window, and the staff can observe out the size of intensity of a fire through the observation window, and the staff of being convenient for is better does the measure of putting out a fire on next step.
The present invention may be further configured in a preferred embodiment as: and the outer wall of the cabinet body is provided with a fireproof coating.
Through adopting above-mentioned technical scheme, the inner wall of the cabinet body is provided with fire protection coating, can further slow down the intensity of a fire and spread to the cabinet body outside.
To sum up, the utility model discloses a following at least one useful technological effect:
1. when the temperature sensor senses that fire breaks out inside the cabinet body, the control switch is triggered to enable the telescopic rod of the air cylinder to extend out, so that the stop block is driven to slide, the exhaust hole is opened, the gaseous extinguishing agent is discharged from the air storage box, so that the fire inside the cabinet body is extinguished, and the influence of the fire on the performance of the whole medium-voltage switch cabinet is further reduced;
2. when the temperature sensor senses that the interior of the cabinet body is on fire, the alarm is triggered, and the warning sound of the alarm can remind workers to check the situation so as to further slow down the spread of the fire;
3. heptafluoropropane is under high temperature state, probably can produce harmful gas such as carbon monoxide and carbon dioxide, and accessible air exhauster and blast pipe are with the internal harmful gas discharge of cabinet, and then can also protect staff's personal safety when putting out a fire to play the effect of dual protection.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention;
FIG. 2 is a schematic view of the control assembly and the gas storage tank assembly according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of another view angle according to an embodiment of the present invention.
Reference numerals: 1. a cabinet body; 2. a gas storage tank; 21. an exhaust hole; 3. a heat-resistant seal ring; 4. a cylinder; 5. a stopper; 6. pushing the plate; 7. an exhaust pipe; 8. an exhaust fan; 9. an alarm; 10. a temperature sensor; 11. an observation window; 12. a gas supply device; 13. a control switch; 14. placing the plate.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
A double-protection medium-voltage switch cabinet structure comprises a cuboid cabinet body 1, wherein a gas storage tank 2 is fixedly connected to the inner wall of the top of the cabinet body 1, the gas storage tank 2 is arranged in a cuboid shape, and a gaseous fire extinguishing agent (not shown in the figure) is filled in the gas storage tank 2, and is preferably heptafluoropropane in the embodiment. Meanwhile, the outer side of the gas storage tank 2 is communicated with a gas supply device 12 for providing gaseous fire extinguishing agent, and the gas supply device 12 is positioned on the outer side of the cabinet body 1 and is communicated with the side walls of the cabinet body 1 and the gas storage tank 2 through a guide pipe. In addition, the side wall of the bottom of the gas storage box 2 is provided with a vent hole 21, and the side wall of the gas storage box 2 is provided with a control component for controlling the opening and closing of the vent hole 21.
As shown in fig. 2 and 3, in particular, the control assembly comprises a cylinder 4 perpendicular to the top of the cabinet 1 and a stop 5 perpendicularly fixed to the end of the telescopic rod of the cylinder 4. The telescopic link of cylinder 4 runs through the top of cabinet top and gas storage tank 2 respectively, the size of dog 5 and the big or small looks adaptation in exhaust hole 21, and dog 5 and exhaust hole 21 sealing connection. In this embodiment, in order to ensure the sealing property of the connection between the stopper 5 and the exhaust hole 21, the hole wall of the exhaust hole 21 is fixedly connected with a heat-resistant sealing ring 3, and the heat-resistant sealing ring 3 abuts against the side wall of the stopper 5. In addition, the fixed cover of telescopic link of cylinder 4 is equipped with the push pedal 6 of rectangle, and the telescopic link of cylinder 4 is fixed through the welding realization with push pedal 6, and four lateral walls of push pedal 6 all with four lateral wall butts of gas storage box 2, when the telescopic link of cylinder 4 is in the shrink state, the upper surface of push pedal 6 is contradicted with the top inner wall of gas storage box 2. Meanwhile, the cabinet body 1 is internally and fixedly connected with a temperature sensor 10, the cabinet body 1 is externally and fixedly connected with a control switch 13 for controlling the cylinder 4 to be opened and closed, and the temperature sensor 10, the control switch 13 and the cylinder 4 are electrically connected.
As shown in fig. 1 and 3, the inside of the cabinet body 1 is communicated with an exhaust pipe 7, the exhaust pipe 7 is located on the side wall of the cabinet body 1, the other end of the exhaust pipe 7 is communicated with an exhaust fan 8, a placing plate 14 is fixedly connected to the outer wall of the cabinet body 1, the exhaust fan 8 is installed on the placing plate 14, and the exhaust fan 8 extracts the exhaust gas in the cabinet body 1 and discharges the exhaust gas to an exhaust gas collecting device. In addition, the top of the cabinet body 1 is fixedly connected with an alarm 9, and the alarm 9 is electrically connected with a temperature sensor 10. An observation window 11 is installed on the cabinet door of the cabinet body 1, and a fireproof coating (not shown in the figure) for isolating fire is coated on the inner wall of the cabinet body 1.
The implementation principle of the embodiment is as follows: when temperature sensor 10 senses the internal portion of cabinet 1 when on fire, trigger control switch 13, so that cylinder 4's telescopic link stretches out, and then drive dog 5 and slide, so that exhaust hole 21 opens, can drive push pedal 6 from the top of gas storage box 2 to exhaust hole 21 motion when cylinder 4's telescopic link stretches out, push pedal 6 releases gaseous fire extinguishing agent in the gas storage box 2 from exhaust hole 21, gaseous fire extinguishing agent discharges from gas storage box 2, with the internal portion's of the cabinet fire that disappears, this medium voltage switchgear structure can realize automatic fire extinguishing when the internal 1 of cabinet is on fire, and then reduce the degree that the electrical components in the cabinet is burnt and is lost, thereby reduce the influence of fire to the performance of whole medium voltage switchgear.
The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.
Claims (8)
1. The utility model provides a medium voltage switchgear structure of dual protection, includes the cabinet body (1), its characterized in that: the inner wall of the top of the cabinet body (1) is fixedly connected with a gas storage tank (2), the gas storage tank (2) is filled with a gaseous extinguishing agent, the outer side of the gas storage tank (2) is communicated with a gas supply device (12) for providing the gaseous extinguishing agent, the side wall of the bottom of the gas storage tank (2) is provided with an exhaust hole (21), and the side wall of the gas storage tank (2) is provided with a control component for controlling the exhaust hole (21) to open and close;
the control assembly comprises a cylinder (4) perpendicular to the top of the cabinet body (1) and a stop block (5) vertically fixed at the end part of a telescopic rod of the cylinder (4), wherein the telescopic rod of the cylinder (4) penetrates through the top of the gas storage box (2), the stop block (5) is connected with a gas exhaust hole (21) in a sealing mode, a temperature sensor (10) is arranged in the cabinet body (1), a control switch (13) used for controlling the opening and closing of the cylinder (4) is arranged on the outer side of the cabinet body (1), and the temperature sensor (10), the control switch (13) and the cylinder (4) are electrically connected with one another.
2. A double-protection medium voltage switchgear structure according to claim 1, characterized in that: the fixed cover of telescopic link of cylinder (4) is equipped with push pedal (6), the lateral wall of push pedal (6) all with the lateral wall butt of gas storage box (2), when the telescopic link of cylinder (4) is in the shrink state, the upper surface of push pedal (6) is contradicted with the top inner wall of gas storage box (2).
3. A double-protection medium voltage switchgear structure according to claim 1, characterized in that: the gaseous extinguishing agent is provided as heptafluoropropane.
4. A double-protection medium voltage switchgear structure according to claim 1, characterized in that: the hole wall fixedly connected with heat-resisting sealing washer (3) of exhaust hole (21), heat-resisting sealing washer (3) contradicts with the lateral wall of dog (5).
5. A double-protection medium voltage switchgear structure according to claim 3, characterized in that: the cabinet body (1) is internally communicated with an exhaust pipe (7), and the exhaust pipe (7) is positioned on the side wall of the cabinet body (1) and communicated with an exhaust fan (8).
6. A double-protection medium voltage switchgear structure according to claim 1, characterized in that: the top of the cabinet body (1) is provided with an alarm (9), and the alarm (9) is electrically connected with a temperature sensor (10).
7. A double-protection medium voltage switchgear structure according to claim 1, characterized in that: the cabinet door of the cabinet body (1) is provided with an observation window (11).
8. A double-protection medium voltage switchgear structure according to claim 1, characterized in that: the inner wall of the cabinet body (1) is provided with a fireproof coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020641371.9U CN211701031U (en) | 2020-04-24 | 2020-04-24 | Medium-voltage switchgear structure with dual protection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020641371.9U CN211701031U (en) | 2020-04-24 | 2020-04-24 | Medium-voltage switchgear structure with dual protection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211701031U true CN211701031U (en) | 2020-10-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020641371.9U Active CN211701031U (en) | 2020-04-24 | 2020-04-24 | Medium-voltage switchgear structure with dual protection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211701031U (en) |
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2020
- 2020-04-24 CN CN202020641371.9U patent/CN211701031U/en active Active
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