CN209329425U - Switchgear with self-protection function - Google Patents

Abstract

The utility model relates to the technical field of switch cabinets, and discloses a switch cabinet with a self-protection function. The powder pipe is set at the powder outlet of the dry powder box, the electromagnetic switch valve is installed on the powder guide pipe, the lower surface of the upper partition is provided with a horizontal installation groove, and the inner walls of the left and right sides of the cabinet are provided with vertical installation grooves. The two vertical mounting slots communicate with the left and right ports of the horizontal mounting slot respectively. The switchgear with self-protection function enables the electrical components inside the cabinet to timely and effectively extinguish the electrical components that have an open flame, and the inner cavity of the cabinet can promptly and effectively discharge the internal smoke after the open flame smoke is generated to prevent the smoke from being generated. The floating particles enter other electrical components and cause a short circuit hazard, which effectively improves the safety performance of the switchgear.

Description

Switchgear with self-protection function

technical field

The utility model relates to the technical field of switch cabinets, in particular to a switch cabinet with a self-protection function.

Background technique

Switchgear is widely used in power facilities and plays a protective role for power transmission and control. There are generally many electrical control components installed inside the switchgear, and long-term use will generate more heat. Although the existing Switch cabinets are generally equipped with heat dissipation equipment, but when the equipment is in use, if a circuit short circuit occurs and an open flame occurs, it is easy to cause damage to other electrical components inside the switch cabinet, resulting in secondary damage, while the existing The switchgear cannot timely and effectively extinguish and protect the interior of the switchgear after the internal electrical components generate a short-circuit open flame. Therefore, a switchgear that can sense internal smoke and protect the electrical components in a timely and effective manner is needed to reduce the secondary damage of the internal electrical components. damaged.

Utility model content

It solves the problem that the open flame inside the switch cabinet cannot be extinguished in time and cause secondary damage when it is in use.

A switch cabinet with self-protection function, including a cabinet body, an upper partition, a dry powder box, a powder guide pipe, an electromagnetic switch valve, two elbow joints, a horizontal multi-way pipe, two vertical multi-way pipes, and a lower partition , small air pump, exhaust pipe, suction pipe, dust cover, dust filter cover, smoke sensor, battery and control panel, the upper partition is fixedly installed above the inner cavity of the cabinet, and the dry powder box is fixedly installed on In the middle of the upper surface of the upper partition, the powder guide pipe is arranged at the powder outlet of the dry powder box, the electromagnetic switch valve is installed on the powder guide pipe, and a horizontal installation groove is opened on the lower surface of the upper partition. Vertical installation grooves are provided on the inner walls of the left and right sides of the cabinet body, and the two vertical installation grooves are respectively connected with the left and right ports of the horizontal installation groove, and the end of the powder guide pipe runs through the upper surface of the upper partition And communicate with the inlet of the horizontal multi-way pipe, the horizontal multi-way pipe is horizontally installed on the top of the inner cavity of the horizontal installation groove, and the two vertical multi-way pipes are respectively installed in the inner cavity of the two vertical installation grooves, so The two ends of the horizontal multi-way pipe are respectively connected to the two vertical multi-way pipes through two elbow joints, and the lower surface of the horizontal multi-way pipe and the opposite sides of the two vertical multi-way pipes are equidistantly provided with powder discharge valves. The lower partition is fixedly installed under the left and right inner walls of the cabinet, the small air pump is fixedly installed on the inner bottom of the cabinet, and the exhaust pipe of the small air pump runs through the bottom of the inner cavity of the cabinet. The suction pipe of the small air suction pump runs through the lower surface of the lower partition, the dust cover is installed on the upper surface of the lower partition through a support frame, the port end of the suction pipe is located in the inner cavity of the dust cover, The dust filter cover is annularly installed in the inner cavity of the dust cover and surrounds the suction pipe, the smoke sensor is fixedly installed on the lower surface of the upper partition, the battery is installed on the upper surface of the upper partition, and the control panel is installed on top of the interior of the cabinet.

Preferably, the powder outlets on the two vertical multi-way pipes are distributed in a staggered manner.

Preferably, the connection relationship between the storage battery and the control panel, the smoke sensor, the small air pump and the electromagnetic switch valve is an electrical connection, the control panel can control the switch and the operating state of the small air pump and the electromagnetic switch valve, and the battery can use lithium battery.

Preferably, the filter hole diameter of the dust filter cover is smaller than the outer diameter of the dry powder particles stored in the dry powder box, the shape of the dust cover is a hollow semicircular shell, and the cover is made of high temperature resistant plastic material.

Preferably, the bottom ends of the two vertical installation grooves are located above the lower partition, and the top ends of the two vertical installation grooves communicate with the left and right ends of the horizontal installation grooves.

Preferably, the dry powder box stores high-pressure fire extinguishing dry powder, and the used fire extinguishing dry powder is a mixture of fluoroprotein foam fire extinguishing agent and aqueous film-forming foam fire extinguishing agent.

Compared with existing technology:

(1) The switchgear with self-protection function cooperates with each other by setting the cabinet body, upper partition, dry powder box and electromagnetic switch valve. When the equipment is in use, the smoke sensor senses in real time whether a large amount of smoke is generated inside the cabinet body. After sensing the smoke generated in the inner cavity of the cabinet, the signal is transmitted to the control panel, so that the control panel controls the electromagnetic switch valve to open, so that the dry powder in the dry powder box is exported through the powder guide pipe, and then passed through the horizontal multi-way pipe and The two vertical multi-way pipes conduct conduction, and the powder outlets on the horizontal multi-way pipe and the vertical multi-way pipe lead out the dry powder, so that the dry powder sprays the dry powder on the cabinet cavity from the top and left and right sides of the cabinet at the same time, so that The electrical components inside the cabinet can timely and effectively extinguish the electrical components that have an open flame, and can also protect the electrical components inside the cabinet, thereby achieving the purpose of self-protection of the switch cabinet and effectively reducing the cost of the switch cabinet. Secondary loss due to internal open fire.

(2) The switchgear with self-protection function cooperates with each other by setting a small air pump, a sunken cover and a dust filter cover. When the equipment is in use, after the smoke sensor transmits the signal of smoke to the control panel, the control panel starts At the same time as the electromagnetic switch valve, the small air suction pump is activated, so that the suction pipe of the small air suction pump can suck out the air in the inner cavity of the cabinet. The normal use of the air pump makes the mixed air of smoke and dry powder in the inner cavity of the cabinet sucked out by the small air pump through the dust filter cover and the suction pipe, and finally discharged through the exhaust pipe, so that the inner cavity of the cabinet can be promptly and effectively discharged after the smoke from the open flame is generated. The internal smoke is discharged to prevent the floating particles generated by the smoke from entering into other electrical components and causing the hidden danger of short circuit, which effectively improves the safety performance of the switchgear.

(3) In the switchgear with self-protection function, by setting the other two vertical multi-way pipes, after the dry powder is discharged from the powder outlets of the horizontal multi-way pipe and the two vertical multi-way pipes, the dry powder is discharged from the inside of the cabinet. All-round spraying on the top of the cavity and on the left and right sides, while the powder outlets on the two vertical multi-way pipes are staggered, which effectively reduces the dead angle of the dry powder spraying on the electrical components, thus achieving the best effect on the electrical components in the cabinet. for effective protection.

Description of drawings

Fig. 1 is the structural representation of the utility model;

Figure 2 is an enlarged schematic view of the structure at A in Figure 1;

FIG. 3 is an enlarged schematic diagram of the structure at B in FIG. 1 .

In the figure: 1 cabinet body, 2 upper partition, 3 dry powder box, 4 powder guide pipe, 5 electromagnetic switch valve, 6 elbow joint, 7 horizontal installation slot, 8 horizontal multi-way pipe, 9 vertical installation slot, 10 vertical multi-way Through pipe, 11 powder outlet, 12 lower partition, 13 small suction pump, 14 exhaust pipe, 15 suction pipe, 16 dust cover, 17 dust filter cover, 18 smoke sensor, 19 storage battery, 20 control panel.

Detailed ways

As shown in Figure 1-3, the utility model provides a technical solution: a switch cabinet with self-protection function, including a cabinet body 1, an upper partition 2, a dry powder box 3, a powder guide pipe 4, and an electromagnetic switch valve 5 , two elbow joints 6, horizontal multi-way pipe 8, two vertical multi-way pipes 10, lower partition 12, small air pump 13, exhaust pipe 14, suction pipe 15, dust cover 16, dust filter cover 17 , smoke sensor 18, battery 19 and control panel 20, the upper partition 2 is fixedly installed above the inner cavity of the cabinet 1, the dry powder box 3 is fixedly installed in the middle of the upper surface of the upper partition 2, and the powder guide tube 4 is arranged on the dry powder At the powder outlet of box 3, high-pressure fire extinguishing dry powder is stored in dry powder box 3. The fire extinguishing dry powder used is a mixture of fluoroprotein foam fire extinguishing agent and aqueous film-forming foam fire extinguishing agent. The electromagnetic switch valve 5 is installed on the powder guide pipe 4 , the lower surface of the upper partition 2 is provided with a horizontal installation groove 7, and the inner walls of the left and right sides of the cabinet body 1 are provided with a vertical installation groove 9, and the two vertical installation grooves 9 communicate with the left and right ports of the horizontal installation groove 7 respectively , the end of the powder guide pipe 4 runs through the upper surface of the upper partition 2 and communicates with the inlet of the horizontal multi-way pipe 8, the horizontal multi-way pipe 8 is horizontally installed on the top of the inner cavity of the horizontal installation groove 7, and the two vertical multi-way The tubes 10 are respectively installed in the inner cavities of the two vertical mounting grooves 9, and the two ends of the horizontal multi-way tube 8 communicate with the two vertical multi-way tubes 10 through two elbow joints 6 respectively, and the lower surface of the horizontal multi-way tube 8 The sides opposite to the two vertical multi-way pipes 10 are equidistantly provided with powder outlets 11, the powder outlets 11 on the two vertical multi-way pipes 10 are distributed in a staggered manner, and the lower partitions 12 are fixedly installed on the left and right sides of the cabinet body 1 Below the inner wall, the bottom ends of the two vertical installation grooves 9 are located above the lower partition 12, the top ends of the two vertical installation grooves 9 communicate with the left and right ends of the horizontal installation groove 7, and the small air pump 13 is fixedly installed in the cabinet body 1, the exhaust pipe 14 of the small air pump 13 runs through the bottom of the inner cavity of the cabinet 1, the suction pipe 15 of the small air pump 13 runs through the lower surface of the lower partition 12, and the dust cover 16 is installed on the The upper surface of the lower partition 12, the end of the port of the suction pipe 15 is located in the inner cavity of the dust cover 16, the dust filter cover 17 is annularly installed in the inner cavity of the dust cover 16 and surrounds the suction pipe 15, the filter hole of the dust filter cover 17 The diameter is smaller than the outer diameter of the dry powder particles stored in the dry powder box 3, the shape of the dust cover 16 is a hollow semicircular shell, the sink cover 16 is made of high temperature resistant plastic material, and the smoke sensor 18 is fixedly installed on the lower surface of the upper partition 2 , the battery 19 is installed on the upper surface of the upper partition 2, the control panel 20 is installed on the top of the inner cavity of the cabinet 1, the smoke sensor 18 adopts the r2868 flame smoke sensor, the battery 19 and the control panel 20, the smoke sensor 18, and the small air pump 13 The connection relationship with the electromagnetic switch valve 5 is an electrical connection, the control panel 20 controls the switch and the running state of the small air pump 13 and the electromagnetic switch valve 5, and the storage battery 19 adopts a lithium battery.

When the equipment is in use, the smoke sensor 18 senses in real time whether a large amount of smoke is generated inside the cabinet body 1, and after sensing the smoke generated in the inner cavity of the cabinet body 1, the signal is transmitted to the control panel 20, so that The control panel 20 controls the electromagnetic on-off valve 5 to open, and the control panel 20 also starts the small air pump 13 while starting the electromagnetic on-off valve 5, so that the dry powder in the dry powder box 3 is exported through the powder guide pipe 4, and then passed through the horizontal multi-way pipe. 8 and two vertical multi-way pipes 10 conduct conduction, while the powder outlet 11 on the horizontal multi-way pipe 8 and the vertical multi-way pipe 10 conducts the dry powder export, so that the dry powder is discharged from the top and left and right sides of the cabinet body 1 at the same time. The inner cavity of body 1 is sprayed with dry powder, so that the electrical components inside the cabinet 1 can timely and effectively extinguish the electrical components that have an open flame. The setting of the dust cover 16 can effectively prevent a large amount of dry powder particles from blocking the dust filter cover 17, ensuring The normal use of the small air pump 13 makes the mixed air of smoke and dry powder in the inner cavity of the cabinet body 1 sucked out by the small air pump 13 through the dust filter cover 17 and the suction pipe 15, and finally discharged through the exhaust pipe 14, so that the inner cavity of the cabinet body 1 is exhausted. After the open fire smoke is generated, the internal smoke can be discharged in a timely and effective manner, preventing the floating particles generated by the smoke from entering other electrical components and causing short circuit hazards.

Claims (6)

1. A switch cabinet with self-protection function, including cabinet body (1), upper partition (2), dry powder box (3), powder guide pipe (4), electromagnetic switch valve (5), two elbows Joint (6), horizontal multi-way pipe (8), two vertical multi-way pipes (10), lower partition (12), small suction pump (13), exhaust pipe (14), suction pipe (15) , dust cover (16), dust filter cover (17), smoke sensor (18), storage battery (19) and control panel (20), it is characterized in that: described upper partition (2) is fixedly installed on cabinet body (1 ), the dry powder box (3) is fixedly installed in the middle of the upper surface of the upper partition (2), and the powder guide tube (4) is connected to the powder outlet of the dry powder box (3), The electromagnetic switch valve (5) is installed on the powder guide pipe (4), the lower surface of the upper partition (2) is provided with a horizontal installation groove (7), and the inner walls of the left and right sides of the cabinet (1) There are vertical installation grooves (9) on the top, and the two vertical installation grooves (9) are respectively connected with the left and right ports of the horizontal installation groove (7), and the end of the powder guide pipe (4) runs through the upper partition The upper surface of (2) communicates with the inlet of the horizontal multi-way pipe (8), and the horizontal multi-way pipe (8) is horizontally installed on the top of the inner cavity of the horizontal installation groove (7), and the two vertical multi-way pipes The through pipes (10) are respectively installed in the inner cavities of the two vertical installation grooves (9), and the two ends of the horizontal multi-way pipe (8) are connected to the two vertical multi-way pipes ( 10) connected to each other, the lower surface of the horizontal multi-way pipe (8) and the opposite sides of the two vertical multi-way pipes (10) are equidistantly provided with powder outlets (11), and the lower partition (12) is fixed Installed under the inner walls of the left and right sides of the cabinet (1), the small air pump (13) is fixedly installed on the inner bottom of the cabinet (1), and the exhaust pipe (14) of the small air pump (13) runs through At the bottom of the inner cavity of the cabinet body (1), the suction pipe (15) of the small air pump (13) runs through the lower surface of the lower partition (12), and the dust cover (16) is installed on the lower surface through the support frame. The upper surface of the partition (12), the port end of the suction pipe (15) is located in the inner cavity of the dust cover (16), and the dust filter cover (17) is annularly installed in the inner cavity of the dust cover (16) And surround the suction pipe (15), the smoke sensor (18) is fixedly installed on the lower surface of the upper partition (2), the battery (19) is installed on the upper surface of the upper partition (2), the control The panel (20) is installed on the top of the inner cavity of the cabinet body (1). 2. The switchgear with self-protection function according to claim 1, characterized in that: the powder outlets (11) on the two vertical multi-way pipes (10) are distributed in a staggered manner. 3. The switch cabinet with self-protection function according to claim 1, characterized in that: said battery (19) and control panel (20), smoke sensor (18), small air pump (13) and electromagnetic switch valve The connection relationship between (5) is electrical connection, and the control panel (20) controls the switch and the operating state of the small air pump (13) and the electromagnetic switch valve (5), and the storage battery (19) adopts a lithium battery. 4. The switch cabinet with self-protection function according to claim 1, characterized in that: the filter hole diameter of the dust filter cover (17) is smaller than the outer diameter of the dry powder particles stored in the dry powder box (3), and the dust cover ( 16) is shaped as a hollow semicircular shell, and the dust cover (16) is made of high temperature resistant plastic material. 5. The switchgear with self-protection function according to claim 1, characterized in that: one end of the bottom of the two vertical installation grooves (9) is located above the lower partition (12), and the two vertical installation grooves ( One end of the top of 9) communicates with the left and right ends of the transverse mounting groove (7). 6. The switchgear with self-protection function according to claim 1, characterized in that: the dry powder box (3) stores high-pressure fire extinguishing dry powder, and the fire extinguishing dry powder used is fluoroprotein foam fire extinguishing agent and water film-forming Mixture of foam extinguishing agents.