CN115776048A - High-voltage switch cabinet - Google Patents
High-voltage switch cabinet Download PDFInfo
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- CN115776048A CN115776048A CN202211592532.XA CN202211592532A CN115776048A CN 115776048 A CN115776048 A CN 115776048A CN 202211592532 A CN202211592532 A CN 202211592532A CN 115776048 A CN115776048 A CN 115776048A
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- cabinet
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- winding roller
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Abstract
The invention discloses a high-voltage switch cabinet, which is characterized in that a cabinet door is arranged on a cabinet body, a fireproof box is arranged at the top of one side, close to the cabinet door, of the cabinet body, a winding roller is rotatably connected in the fireproof box, a fireproof curtain is wound on the winding roller, a counterweight strip which is in sliding connection with the cabinet body is arranged at one end of the fireproof curtain, the counterweight strip is clamped with the bottom of the cabinet body, and a locking mechanism for limiting the rotation of the winding roller is arranged between the winding roller and the cabinet body; the top of the cabinet body is also provided with a pressure relief opening, the pressure relief opening is hinged with a cover plate, and a driving assembly for driving the cover plate to be far away from the pressure relief opening is arranged between the cover plate and the cabinet body; the cabinet body is also internally provided with a gas storage tank for storing carbon dioxide; the control module is used for monitoring the air pressure and the temperature of the cabinet body, unlocking the winding roller by the locking mechanism, and controlling the cover plate to be opened and the gas storage tank to release carbon dioxide gas; can reduce the injury to surrounding environment and personnel when the cabinet is internal to explode or catch fire through above-mentioned structure, can effectual reduction loss.
Description
Technical Field
The invention relates to the technical field of high-voltage switch cabinets, in particular to an outdoor high-voltage switch cabinet.
Background
The cubical switchboard is an electrical equipment, and the cubical switchboard external line gets into main control switch in the cabinet earlier, then gets into branch accuse switch, and each is shunted and is set up according to its needs: such as meters, automatic controls, magnetic switches of motors, various alternating current contactors, and the like; some of them are also provided with high-voltage chamber and low-voltage chamber switch cabinets, and are provided with high-voltage buses, such as power plants.
Current cubical switchboard, in the use, probably because the switch is insulating impaired, arouses electrical short circuit, the conflagration breaing out, perhaps the switch board internal element quality is unstable again, and the electric wire and cable joint is not firm etc. also can cause electric fire because of generating heat, can have following two kinds of circumstances this moment: 1. the working personnel overhauls the cabinet body, the cabinet door is in an open state, and at the moment, if a fire disaster happens in the cabinet body, the flame is easy to spread and damage adjacent equipment or articles, so that greater property loss is caused;
2. the cabinet door is in the state of closing, and at this moment, if the internal short circuit that appears of cabinet, short-circuit current can produce high temperature high-pressure gas in the twinkling of an eye, simultaneously because the cabinet is internal comparatively narrow, atmospheric pressure risees and can lead to the cabinet body to explode and split, can cause danger to adjacent cubical switchboard and staff, causes flame to splash even and makes the conflagration stretch.
Disclosure of Invention
In order to solve the problems, the invention provides a high-voltage switch cabinet which can seal and extinguish a fire when the interior of the cabinet is on fire, so that the spread of fire is avoided, and meanwhile, the pressure in the cabinet can be relieved, so that the explosion caused by overlarge pressure in the cabinet is avoided.
In order to achieve the purpose, the invention adopts the technical scheme that: a high-voltage switch cabinet comprises a cabinet body, wherein a cabinet door is arranged on the cabinet body, and the high-voltage switch cabinet is characterized in that a fireproof box is arranged at the top of one side, close to the cabinet door, of the cabinet body, a winding roller is rotatably connected in the fireproof box, a fireproof curtain is wound on the winding roller, a counterweight strip which is in sliding connection with the cabinet body is arranged at one end of the fireproof curtain, the counterweight strip is clamped with the bottom of the cabinet body, and a locking mechanism for limiting the rotation of the winding roller is arranged between the winding roller and the cabinet body; the top of the cabinet body is also provided with a pressure relief opening, the pressure relief opening is hinged with a cover plate, the cover plate is used for sealing the pressure relief opening, and a driving assembly for driving the cover plate to be far away from the pressure relief opening is arranged between the cover plate and the cabinet body; a gas storage tank storing carbon dioxide is also arranged in the cabinet body; the winding device is characterized by further comprising a control module, wherein the control module is used for monitoring the air pressure and the temperature of the cabinet body, unlocking the winding roller by the locking mechanism, and controlling the cover plate to be opened and the gas storage tank to release carbon dioxide gas.
The invention is further provided that a guide pipe is connected outside the pressure relief opening, a plurality of radiating fins are arranged on the inner wall of the guide pipe, a fire retardant unit formed by winding a corrugated steel strip and a flat steel strip together is also arranged in the guide pipe, and the fire retardant unit is connected with the radiating fins.
The invention is further provided with guide grooves arranged on two sides of the inner wall of the cabinet body, two ends of the counterweight strip are connected with the guide grooves in a sliding manner, and two sides of the fireproof curtain slide along the guide grooves.
The invention is further set that the locking mechanism comprises locking wheels arranged at two ends of the winding roller, a locking rod which is positioned above the locking wheels and is clamped with the locking wheels is arranged in the fireproof box, the locking rod is arranged in the fireproof box in a sliding manner and is stretched through an air cylinder, and the air cylinder is electrically connected with the control module.
The invention is further provided that an electromagnetic valve is arranged at the air outlet of the air storage tank, and the electromagnetic valve is electrically connected with the control module.
The invention is further set that the driving mechanism comprises a locking rod arranged at the bottom of the cover plate, a locking groove matched with the locking rod in a splicing mode is formed in the cabinet body, a spring is arranged between the locking rod and the locking groove, a magnet is arranged at the end part of the locking rod, an electromagnet is arranged in the locking groove, and the electromagnet is connected with a power supply through a control module.
The invention is further provided that the control module comprises an air pressure sensor arranged in the cabinet body, and the air pressure sensor is electrically connected with the power supply through the PLC control module; still including setting up in the internal temperature sensor of cabinet, temperature sensor passes through PLC control module electricity with cylinder and solenoid valve and connects the setting.
The invention is further provided with a clamping groove clamped with the counterweight strip at the bottom of the inner side of the cabinet body.
In conclusion, the invention has the beneficial effects that:
1. compared with the prior art, the fireproof cloth is rolled, so that when the cabinet body is combusted, the cabinet door side of the cabinet body can be quickly shielded, the supply of the air in the cabinet body from the outside can be reduced, the oxygen content in the cabinet body can be reduced, and the effect of reducing the fire is achieved; meanwhile, the fireproof cloth can prevent flame and electric sparks in the cabinet body from splashing outside the cabinet body, so that when the cabinet door is in an open state, the situation that external articles are ignited to cause fire spread and increase can be avoided; if there is the staff to overhaul the cabinet body and when taking place the detonation simultaneously, the explosion sound and the impact that the short circuit produced cause the staff briefly to be vague or even coma easily, and the fire prevention cloth can play certain guard action to the staff this moment, has avoided flame to splash and has produced secondary injury to external staff.
2. Through the setting of baroceptor and apron, can initiatively carry out the pressure release to the internal pressure of cabinet to avoided the internal pressure of cabinet to too big explosion that causes, can guide the direction of pressure release through the guiding tube simultaneously, the back-fire relief unit that sets up in the guiding tube can be at the internal back of catching a fire of cabinet, avoids inside flame from the blowout of pressure release mouthful direction, has played the effect of suppressing flame, has avoided spun flame to ignite article on every side and has caused safety hazard.
Drawings
Fig. 1 is a perspective view of the present embodiment.
Fig. 2 is a front partial sectional view of the present embodiment.
Fig. 3 is an enlarged view of the locking mechanism of fig. 2.
Fig. 4 is a side sectional view of the present embodiment.
Fig. 5 is a structure diagram of the fire box of the present embodiment.
Fig. 6 is an enlarged view of the structure of the cover plate of fig. 4.
Reference numerals are as follows: 1-a cabinet body; 2-cabinet door; 3-fireproof box; 31-a wind-up roll; 32-fire-proof curtain; 33-a weight bar; 4-a locking mechanism; 41-locking wheel; 42-a locking lever; 43-air cylinder; 5-a pressure relief opening; 6-cover plate; 64-a power supply; 7-a drive assembly; 71-a rotating shaft; 73-a magnet; 74-an electromagnet; 8-a gas storage tank; 81-electromagnetic valve; 9-a guide tube; 10-a heat sink; 11-a fire stopping unit; 12-a guide groove; 13-a barometric pressure sensor; 14-a temperature sensor; 18-card slot.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 1 to 6, the embodiment discloses a high-voltage switch cabinet, which includes a cabinet body 1, wherein a cabinet door 2 is arranged on one side of the cabinet body 1, and the cabinet door 2 can seal electrical equipment in the cabinet body 1; the top of the cabinet door 2 is also provided with a fireproof box 3, a winding roller 31 is connected in the fireproof box 3 in a rotating manner, a fireproof curtain 32 is wound on the winding roller 31, one end of the fireproof curtain 32 penetrates through a groove in the bottom of the fireproof box 3 and is connected with a counterweight strip 33, two ends of the counterweight strip 33 are slidably arranged in the guide groove 12, and the fireproof curtain 32 can be made to be positioned in the guide groove 12 in the descending process through two sides of the guide groove 12.
As shown in fig. 2-3, a locking rod 42 connected with an air cylinder 43 is arranged in the fire-proof box 3, a locking wheel 41 with latch teeth is arranged on the winding roller 31, the locking rod 42 can be inserted between the latch teeth to realize clamping with the locking wheel 4 under the driving of the air cylinder 43, so that the rotation of the winding roller 31 can be limited, wherein the air cylinder 43 is electrically connected with the temperature sensor 14 in the cabinet 1, when the temperature in the cabinet 1 rises due to a fire disaster in the cabinet 1, the temperature sensor can be triggered, and then the air cylinder is driven by the PLC control module to drive the locking rod 42 to retract, so that the locking rod 42 is separated from the locking wheel 41, the locking of the winding roller 31 is released, the fire-proof curtain 32 can descend under the driving of the counterweight strip 33, so as to shield and seal the opened cabinet door.
Simultaneously because the gravity of counter weight strip and the restriction of guiding groove, can play the effect of blockking to the impact that the explosion produced and the article that splash to the article that splash and impact that the explosion caused have been avoided causing damage to staff and surrounding environment.
As shown in fig. 3, still be provided with the gas holder 8 of taking carbon dioxide gas in the cabinet body 1, the one end of gas holder 8 is provided with the solenoid valve 81 of being connected with the temperature sensor electricity, when catching fire and rising temperature in the cabinet body 1, temperature sensor can open solenoid valve 81 through PLC control module to let the gas in the gas holder 8 can be full of and reach the fire control effect in the cabinet body 1.
As shown in fig. 2 and 6, the top of the cabinet body 1 is provided with a pressure relief opening 5, and when the current short circuit occurs in the cabinet body 1 through the pressure relief opening 5 and high temperature and high pressure are generated, the pressure of the gas in the cabinet body can be relieved, so that the problem of explosion caused by high pressure in the cabinet body is avoided.
5 departments of pressure release mouth are provided with the guiding tube 9, and the opening part that guiding tube 9 kept away from pressure release mouth 5 articulates there is apron 6, is provided with the pivot 71 of taking the coil spring between apron 6 and the guiding tube 9, and pivot 71 makes the mouth of pipe laminating of apron 6 and guiding tube 9 realize closing orificial, and the mouth of pipe terminal surface of guiding tube 9 is provided with electro-magnet 74, electro-magnet 74 passes through the power 64 power supply, power 64 is connected with baroceptor 13, baroceptor 13 is located and can realize detecting the atmospheric pressure in the cabinet body 1.
In a daily use state, the power supply does not supply power to the electromagnet 74, so that the cover plate 6 can seal the pipe opening of the guiding pipe under the action of the coil spring, and external dust and impurities are prevented from entering the cabinet body through the guiding pipe to influence the work of equipment; when the air pressure in the cabinet body 1 reaches a certain threshold value, the air pressure sensor 13 is triggered to send a signal to the PLC control module, the PLC control module turns on the power supply to electrify the electromagnet 74, and the surface of the cover plate 6 facing the pipe orifice is provided with the magnet 73 repelling to the electromagnet 74, so that after the electromagnet 74 is electrified, the cover plate 6 is far away from the pipe orifice under the action of repulsive magnetic force to realize opening of the pipe orifice, thereby actively releasing the pressure in the cabinet body, avoiding the damage of explosion of the cabinet body caused by the rise of the pressure in the cabinet body 1, and improving the safety of the cabinet body when in use.
The working principle is as follows: in the maintenance process of the cabinet body, when a user opens and closes a brake due to short circuit or aging of a circuit in the cabinet body, when a fire or deflagration occurs in the cabinet body, the temperature in the cabinet body 1 rises sharply at the moment, so that the temperature sensor 14 is triggered, the temperature sensor 14 sends a signal to the PLC control module, so that the air cylinder in the fire-proof box 3 is controlled to move, the air cylinder 43 drives the locking rod 42 to retract so as to be separated from the locking wheel 41 on the winding roller 31, after the winding roller 31 is unlocked, the fire-proof curtain 32 on the winding roller 31 slides downwards along the guide groove 12 under the driving of the counterweight strip 33, and the sliding counterweight strip 33 is clamped in the clamping groove 18, so that the cabinet door 2 can be closed under the opening state of the cabinet door, and therefore, after a fire disaster occurs in the cabinet body, flames in the cabinet body can be effectively prevented from splashing to the outside to cause secondary damage to workers or ignite foreign matters to cause fire spread; simultaneously, the fire prevention curtain can play sealed confined effect to the cabinet body 1 to when the flame in the cabinet body 1 was under combustion state, also can reduce the cabinet door when opening, the outside air gets into in the cabinet body 1, thereby can accelerate the burning of the interior oxygen of the cabinet body 1, played the effect that restraines flame.
Meanwhile, the temperature sensor 14 also can control the electromagnetic valve 81 connected with the gas storage tank 8 to be opened, so that carbon dioxide gas is released in the cabinet body 1, and fire extinguishment in the cabinet body 1 is realized.
Meanwhile, a pressure relief opening 5 is formed above the cabinet body 1, the pressure relief opening 5 is connected with a guide pipe 9, the pressure releasing direction in the cabinet body can be guided through the guide pipe 9, a radiating fin is arranged on the pipe wall of the guide pipe 9, a fire retardant unit connected with the radiating fin is arranged in the pipe body, the fire retardant unit is formed by winding a corrugated steel belt and a flat steel belt together, the corrugated steel belt is compounded on the surface of the flat steel belt and is folded into a disc-shaped structure, and therefore a fire arrestor is formed;
when the cabinet body knocks, the air pressure in the cabinet body can rise instantly due to high temperature, at the moment, the air pressure sensor can be triggered, so that the power supply is controlled to be started, the electromagnet 74 is electrified to generate magnetism, at the moment, the magnet 73 on the cover plate can repel the electromagnet 74, the cover plate overcomes the force of the coil spring to be far away from the pipeline opening, the pipeline opening is automatically opened, the release of the air pressure in the cabinet body is realized, and the explosion of the cabinet body caused by high-pressure gas is avoided, so that the flame is splashed and spread; meanwhile, when pressure is released outwards through the guide pipe, flame in the cabinet body can be sprayed out from a pipe orifice of the guide pipe along with the pressure release direction; the fire retardant unit is arranged in the guide pipe and is formed by compounding the Bowen steel belt and the flat steel belt, and the guide pipe is divided into a plurality of tiny channels, so that the flame is divided into a plurality of tiny flames when passing through the channels, the spread of the flame is prevented, and the safety of equipment during use is improved; the loss caused by explosion or fire of the cabinet body is reduced.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like made within the design concept of the present invention should be included in the scope of the present invention.
Claims (8)
1. A high-voltage switch cabinet comprises a cabinet body (1), wherein a cabinet door (2) is arranged on the cabinet body (1), and is characterized in that a fireproof box (3) is arranged at the top of one side, close to the cabinet door (2), of the cabinet body (1), a winding roller (31) is rotatably connected in the fireproof box (3), a fireproof curtain (32) is wound on the winding roller (31), a counterweight strip (33) which is in sliding connection with the cabinet body (1) is arranged at one end of the fireproof curtain (32), the counterweight strip (33) is clamped with the bottom of the cabinet body (1), and a locking mechanism (4) for limiting the rotation of the winding roller (31) is arranged between the winding roller (31) and the cabinet body (1); the top of the cabinet body (1) is also provided with a pressure relief opening (5), the pressure relief opening (5) is hinged with a cover plate (6), the cover plate (6) is used for sealing the pressure relief opening (5), and a driving assembly (7) for driving the cover plate (6) to be far away from the pressure relief opening (5) is arranged between the cover plate and the cabinet body (1); a gas storage tank (8) in which carbon dioxide is stored is also arranged in the cabinet body (1); the device is characterized by further comprising a control module, wherein the control module is used for monitoring the air pressure and the temperature of the cabinet body (1), unlocking the winding roller (31) by the locking mechanism (4), and controlling the cover plate (6) to be opened and the gas storage tank (8) to release carbon dioxide gas.
2. The high-voltage switch cabinet according to claim 1, wherein a guide pipe (9) is connected outside the pressure relief opening (5), a plurality of radiating fins (10) are arranged on the inner wall of the guide pipe (9), a fire retardant unit (11) formed by winding a corrugated steel strip and a flat steel strip together is further arranged in the guide pipe (9), and the fire retardant unit (11) is connected with the radiating fins (10).
3. The high-voltage switch cabinet according to claim 1, wherein guide grooves (12) are formed in two sides of the inner wall of the cabinet body (1), two ends of the counterweight strip (33) are slidably connected with the guide grooves (12), and two sides of the fireproof curtain (32) are slidably arranged along the guide grooves (12).
4. The high-voltage switch cabinet according to claim 1, wherein the locking mechanism (4) comprises a locking wheel (41) arranged at one end of the winding roller (31), a locking rod (42) which is arranged above the locking wheel (41) and is clamped with the locking wheel (41) is arranged in the fireproof box (3), the locking rod (42) is slidably arranged in the fireproof box (3) and is extended and retracted through an air cylinder (43), and the air cylinder (43) is electrically connected with the control module.
5. The high-voltage switch cabinet according to claim 4, characterized in that an electromagnetic valve (81) is arranged at an air outlet of the air storage tank (8), and the electromagnetic valve (81) is electrically connected with the control module.
6. The high-voltage switch cabinet as claimed in claim 2, wherein the driving mechanism (7) comprises a rotating shaft (71) arranged at the pipe orifice of the guide pipe (9), the cover plate (6) is rotatably connected with the guide pipe (9) through the rotating shaft (71), and the rotating shaft (71) is further provided with a coil spring; the device is characterized by further comprising a magnet (73) arranged on the inner side of the cover plate (6), an electromagnet (74) repelling with the magnet (73) is arranged at the pipe opening of the guide pipe (9), and the electromagnet (74) is connected with a power supply (64).
7. The high-voltage switch cabinet according to claim 6, characterized in that the control module comprises an air pressure sensor (13) arranged in the cabinet body (1), and the air pressure sensor (13) is electrically connected with the power supply (64) through a PLC control module; still including setting up temperature sensor (14) in the cabinet body (1), temperature sensor (14) pass through PLC control module electricity with cylinder (43) and solenoid valve (81) and connect the setting.
8. The high-voltage switch cabinet according to claim 1, characterized in that a clamping groove (18) clamped with the counterweight strip (33) is arranged at the bottom of the inner side of the cabinet body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211592532.XA CN115776048A (en) | 2022-12-13 | 2022-12-13 | High-voltage switch cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211592532.XA CN115776048A (en) | 2022-12-13 | 2022-12-13 | High-voltage switch cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115776048A true CN115776048A (en) | 2023-03-10 |
Family
ID=85392016
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211592532.XA Pending CN115776048A (en) | 2022-12-13 | 2022-12-13 | High-voltage switch cabinet |
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| Country | Link |
|---|---|
| CN (1) | CN115776048A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118031135A (en) * | 2024-04-15 | 2024-05-14 | 吉林大学 | Ocean platform combustible gas leaks with detector of patrolling and examining |
-
2022
- 2022-12-13 CN CN202211592532.XA patent/CN115776048A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118031135A (en) * | 2024-04-15 | 2024-05-14 | 吉林大学 | Ocean platform combustible gas leaks with detector of patrolling and examining |
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