Fireproof structure of box-type transformer

Abstract

The utility model discloses a fireproof structure of a box-type transformer, which comprises a box body, a front door is arranged on the front side wall of the box body, an inflatable sealing ring is clamped on the peripheral side wall of the front door, an air tap is fixedly connected on the inflatable sealing ring, a valve is fixedly connected on the circumferential surface of the air tap, and the valve is fixedly connected on the peripheral side wall of the front door. And the left side wall of the box body is fixedly connected with an air inlet pipe. By arranging the box body, the front door, the inflatable sealing ring, the air nozzle, the air inlet pipe, the air inlet valve, a filter screen, a heat insulation plate, a power transformation equipment main body, a temperature sensor, a smoke sensor, an alarm, an air extracting pump, a standby battery box, a PLC and a valve, when the temperature sensor and the smoke sensor in the box body detect a fire, the air inlet valve is closed, and the air extracting pump works normally; air in the box body is rapidly extracted, flame in the box body cannot be continuously combusted due to lack of oxygen, and therefore fire can be rapidly extinguished, safety is achieved, and the fire extinguishing speed is higher.

Description

TECHNICAL FIELD

[0001] The utility model relates to box type transformer technical field, concretely is a kind of fireproof structure of box type transformer. BACKGROUND

[0002] Box type transformer is a complete set of power distribution equipment, which is composed of transformer, high-voltage control equipment and low-voltage control equipment, and has the advantages of small size, light weight, low noise, low loss and high reliability. It is widely used in residential areas, commercial centers, stations, airports, factories, enterprises, hospitals and schools.

[0003] Since the box type transformer has a large number of electronic devices installed inside and is connected by a large number of wires, once a fire occurs inside, the internal transformer and other devices may still be in an energized state. The existing fire extinguishing method is generally to use an external fire extinguisher, which not only has low extinguishing efficiency but also has great safety hazards. SUMMARY

[0004] The utility model aims at providing a fireproof structure of box type transformer. When the internal temperature sensor and smoke sensor detect a fire, the air inlet valve is closed, and the air suction pump works normally to quickly remove the air inside the box. The flame inside the box cannot continue to burn due to lack of oxygen, so the fire can be quickly extinguished, which is not only safe but also faster.

[0005] To achieve the above-mentioned purpose, a fireproof structure of box type transformer is provided, which comprises a box body. A front door is arranged on the front side wall of the box body. An inflation sealing ring is connected to the four side walls of the front door. An air nozzle is fixedly connected to the inflation sealing ring. A valve is fixedly connected to the circumferential surface of the air nozzle. An air inlet pipe is fixedly connected to the left side wall of the box body. An air inlet valve is fixedly connected to the circumferential surface of the air inlet pipe. A filter screen is fixedly connected inside the air inlet pipe. The number of air inlet pipes, air inlet valves and filter screens is three, and they are evenly distributed on the left side of the box body. A heat insulation plate is fixedly connected to the internal four side walls of the box body. A power transformation equipment main body is fixedly connected inside the box body. A temperature sensor and a smoke sensor are fixedly connected to the internal top surface of the box body. An alarm is fixedly connected to the top of the box body. An air suction pump and a standby battery box are fixedly connected to the right side wall of the box body. A PLC controller is fixedly connected to the front side wall of the box body.

[0006] According to the fireproof structure of box type transformer, the input end of the air suction pump penetrates the box body and the heat insulation plate. A filter screen is arranged inside the input end of the air suction pump. The air inlet pipe is located above the air suction pump. Under normal conditions, the air suction pump removes the air in the box body to form heat dissipation. When a fire occurs, the air suction pump removes the internal air to reduce the oxygen content, so that the flame cannot continue to burn, achieving the purpose of fire extinguishing.

[0007] According to the fireproof structure of the box-type transformer, the inside of the standby battery box is provided with a standby battery, and the standby battery is electrically connected with the PLC controller.

[0008] According to the fireproof structure of the box-type transformer, the air inlet valve is an electromagnetic valve, and the electromagnetic valve, the temperature sensor, the smoke sensor, the alarm and the air suction pump are electrically connected with the PLC controller.

[0009] According to the fireproof structure of the box-type transformer, the air nozzle penetrates the front door, and the valve is located in front of the front door.

[0010] According to the fireproof structure of the box-type transformer, the front door is rotatably connected with the box body through a hinge and is fixed through a lock.

[0011] According to the fireproof structure of the box-type transformer, the air inflation sealing ring is made of high-temperature-resistant and high-toughness rubber material.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows: when the temperature sensor and the smoke sensor in the box body detect fire, the air inlet valve is closed, the air suction pump normally works, the air in the box body is quickly sucked away, the flame in the box body cannot continuously burn due to lack of oxygen, so that fire extinguishing can be quickly performed, which is not only safe but also faster.

[0013] Additional aspects and advantages of the utility model will be partially given in the following description, partially become obvious from the following description, or be understood through the practice of the utility model. BRIEF DESCRIPTION OF DRAWINGS

[0014] The utility model will be further explained in connection with the drawings and examples;

[0015] Figure 1 It is the front view of the utility model a box-type transformer's fireproof structure;

[0016] Figure 2 It is the side view of the utility model a box-type transformer's fireproof structure;

[0017] Figure 3 It is the inside structure view of the utility model a box-type transformer's fireproof structure;

[0018] Figure 4 Figure 1 is a cross-sectional view of the fireproof structure of the box-type transformer of the utility model.

[0019] In the figure: 1, box; 2, front door; 3, inflatable sealing ring; 4, air nozzle; 5, air inlet pipe; 6, air inlet valve; 7, filter screen; 8, heat insulation plate; 9, power transformation equipment main body; 10, temperature sensor; 11, smoke sensor; 12, alarm; 13, air pump; 14, spare battery box; 15, PLC controller; 16, valve. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0021] Please refer to Figures 1-4The utility model provides a technical scheme: a kind of fireproof structure of box-type transformer, comprising: box 1, front door 2 is provided on the front side wall of box 1, front door 2 is rotatably connected with box 1 by hinge, and is fixed by lock, and inside can be maintained by opening front door 2 to electrical equipment, inflatable sealing ring 3 is clamped on the four peripheral side walls of front door 2, inflatable sealing ring 3 uses high-temperature-resistant high-toughness rubber material, air cock 4 is fixedly connected on inflatable sealing ring 3, valve 16 is fixedly connected on the circumference of air cock 4, air cock 4 penetrates front door 2, valve 16 is located in front of front door 2, inflatable sealing ring 3 can be inflated by air cock 4, so that it expands, to seal front door 2 with box 1, air inlet pipe 5 is fixedly connected on the left side wall of box 1, air inlet valve 6 is fixedly connected on the circumference of air inlet pipe 5, filter screen 7 is fixedly connected in air inlet pipe 5, the number of air inlet pipe 5, air inlet valve 6 and filter screen 7 is all set to three, and evenly distributed in the left side of box 1, when air inlet valve 6 opens, air inlet pipe 5 can be used for heat dissipation, when air inlet valve 6 closes, box 1 can be isolated from outside, heat insulation plate 8 is fixedly connected on the inside four peripheral side walls of box 1, to avoid heat diffusion to outside, improve the safety of box 1, electrical equipment main body 9 is fixedly connected in box 1, and electrical equipment main body 9 is complete set of distribution equipment, temperature sensor 10 and smoke sensor 11 are fixedly connected on the inside top surface of box 1, to monitor whether there is fire in inside, alarm 12 is fixedly connected on the top of box 1, and alarm 12 sends alarm prompt when detecting that there is fire in inside, suction pump 13 and spare battery box 14 are fixedly connected on the right side wall of box 1, the input end of suction pump 13 penetrates box 1 and heat insulation plate 8, filter screen is arranged in the input end of suction pump 13, to filter extracted gas, air inlet pipe 5 is located above suction pump 13, and suction pump 13 is in long-term working condition, and heat generated when electrical equipment main body 9 works is discharged, to form heat dissipation, PLC controller 15 is fixedly connected on the front side wall of box 1.

[0022] Spare battery is arranged in spare battery box 14, and spare battery is electrically connected with PLC controller 15, as external power supply, provides power support for fireproof components, air inlet valve 6 is solenoid valve, solenoid valve, temperature sensor 10, smoke sensor 11, alarm 12 and suction pump 13 are electrically connected with PLC controller 15, and by PLC controller 15, each fireproof component can be controlled in order, so that when fire occurs, fire extinguishing can be carried out.

[0023] Working principle: in normal working condition, the air inlet valve 6 on the air inlet pipe 5 is opened, cooperates with the air pump 13 to work, forms the convection with the outside, discharges the heat in the box 1, forms the heat dissipation, when the temperature sensor 10 and the smoke sensor 11 detect that the fire occurs in the box 1, the alarm 12 sends the alarm prompt, simultaneously the air inlet valve 6 is automatically closed, because the front door 2 is sealed with the box 1 through the air sealing ring 3, the box 1 is completely isolated with the outside at this time, the air pump 13 works normally and removes the air in the box 1, thereby reduces the oxygen content in the box 1, the flame in the box 1 cannot normally continue to burn due to the lack of oxygen, further reaches the purpose of quickly extinguishing the fire, when the gas removed by the air pump 13 has no black smoke, it indicates that the fire has been extinguished, after a period of time, the gas in the air sealing ring 3 is released, the box 1 is opened, and the maintenance of the box 1 can be carried out.

[0024] The above embodiment of the utility model is described in detail in combination with the drawings, but the utility model is not limited to the above embodiment, and various changes can be made within the knowledge range possessed by ordinary skilled in the art without departing from the purpose of the utility model.

Claims

1. A fireproof structure of a box-type transformer, comprising: The utility model provides a box (1), its characterized in be provided with front door (2) on the front side wall of box (1), the four -corner side wall of front door (2) is clamped and has inflatable seal ring (3), and inflatable seal ring (3) is fixedly connected with air cock (4) on, and the circumferential surface of air cock (4) is fixedly connected with valve (16), and the left side wall of box (1) is fixedly connected with air inlet pipe (5), and the circumferential surface of air inlet pipe (5) is fixedly connected with air inlet valve (6), and the inside fixedly connected with filter screen (7) of air inlet pipe (5), and the number of air inlet pipe (5), air inlet valve (6) and filter screen (7) are all provided with three, and evenly distributed in the left side of box (1), and the inside fixedly connected with heat insulation board (8) of four -corner side wall of box (1), and the inside fixedly connected with power transformation equipment main part (9) of box (1), and the inside top of box (1) is fixedly connected with temperature sensor (10) and smoke sensor (11), and the top of box (1) is fixedly connected with siren (12), and the right side wall of box (1) is fixedly connected with air suction pump (13) and spare battery box (14), and the front side wall of box (1) is fixedly connected with PLC controller (15).

2. The fireproof structure of a box-type transformer according to claim 1, wherein: The input end of the air suction pump (13) penetrates the box (1) and the heat insulation board (8), and a filter screen is arranged in the input end of the air suction pump (13).

3. The fireproof structure of a box-type transformer according to claim 1, wherein: The spare battery box (14) is internally provided with a spare battery, and the spare battery is electrically connected with the PLC controller (15).

4. The fireproof structure of a box-type transformer according to claim 1, wherein: The air inlet valve (6) is an electromagnetic valve, and the electromagnetic valve, the temperature sensor (10), the smoke sensor (11), the siren (12) and the air suction pump (13) are electrically connected with the PLC controller (15).

5. The fireproof structure of a box-type transformer according to claim 1, wherein: The air cock (4) penetrates the front door (2), and the valve (16) is located in front of the front door (2).

6. The fireproof structure of a box-type transformer according to claim 1, wherein: The front door (2) is rotatably connected with the box (1) through a hinge and is fixed through a lock.

7. The fireproof structure of a box-type transformer according to claim 1, wherein: The inflatable seal ring (3) is made of high-temperature-resistant and high-toughness rubber material.

Images