CN105790283A - Fireproof ventilation capacitance compensation cabinet - Google Patents

Abstract

The invention discloses a fireproof ventilation capacitance compensation cabinet, which comprises a cabinet body, wherein the interior of the cabinet body is divided into an upper cabinet body and a lower cabinet body, the front end of the upper cabinet body is provided with an upper cabinet door, and the front end of the lower cabinet body is provided with a lower cabinet door; the cabinet body is provided with a fan; a lightning arrester, knife-fuse switches and current transformers are arranged inside the upper cabinet door, the knife-fuse switches are arranged above the current transformers; miniature circuit breakers, AC contactors, thermal relays and AC capacitors are arranged inside the lower cabinet body; a temperature sensor, a smoke sensor and a fire extinguisher are arranged in each of the upper cabinet door and the lower cabinet body; each fire extinguisher is provided with a spray pipe, the tail end of each spray pipe is provided with a sprayer, and each sprayer is provided with an electromagnetic valve; a controller is arranged inside the cabinet body, and the temperature sensors, the smoke sensors and the electromagnetic valves are electrically connected with the controller; and a storage battery is arranged inside the cabinet body, and the storage battery is electrically connected with the controller. The fireproof ventilation capacitance compensation cabinet has good ventilation and heat dissipation effects, can extinguish fire in the bud, and is high in safety.

Description

A fireproof and ventilated capacitance compensation cabinet

technical field

The invention relates to the technical field of electrical equipment, in particular to a fireproof and ventilated capacitance compensation cabinet.

Background technique

Most of the load types in the power system are inductive loads, coupled with the widespread use of power electronic equipment by power companies, the power factor of the grid is low, and the low power factor reduces the utilization of equipment, increases power supply investment, and damages The voltage quality reduces the service life of the equipment and greatly increases the line loss. In order to improve the energy waste caused by the low power factor of the power grid and the unfavorable factors for power supply production, it is necessary to use a capacitor compensation cabinet to improve the power factor. However, due to the use of electrical equipment The frequency is high, and it is easy to cause high temperature and fire. In addition, the ventilation device of the existing capacitance compensation cabinet is a ventilation grid arranged at the bottom of the capacitance compensation cabinet. The ventilation and heat dissipation effect of this ventilation grid is not good, which affects the service life of various electrical components in the capacitance compensation cabinet.

Contents of the invention

The object of the present invention is to provide a fire-proof and ventilated capacitor compensation cabinet to solve the problems raised in the above-mentioned background technology.

To achieve the above object, the present invention provides the following technical solutions:

A fireproof and ventilated capacitance compensation cabinet, comprising a cabinet body; the cabinet body is divided into an upper cabinet body and a lower cabinet body, and the front ends of the upper cabinet body and the lower cabinet body are correspondingly provided with upper cabinet doors and lower cabinet doors, the upper cabinet body A switch, a reactive power meter, an ammeter, a power factor meter, a reactive power compensation controller and a knife fuse switch interface are arranged on the cabinet door, and a plurality of indicator lights are evenly spaced on the lower cabinet door; A fan is provided; the upper cabinet is provided with a lightning arrester, a knife fuse switch and a current transformer, the knife fuse switch is located above the current transformer, and the lower cabinet is provided with a miniature circuit breaker, an AC contactor, a thermal relay and an AC capacitor , the upper cabinet and the lower cabinet are equipped with temperature sensors, smoke sensors and fire extinguishers, the fire extinguisher is provided with a nozzle, the end of the nozzle is provided with a nozzle, and the nozzle is provided with a solenoid valve, and the cabinet is also provided with a control The temperature sensor, the smoke sensor and the solenoid valve are all electrically connected to the controller, and a storage battery is arranged in the cabinet, and the storage battery is electrically connected to the controller.

As a further solution of the present invention: there are four fans in total, which are respectively arranged on both sides of the cabinet, and the two fans located on the same side of the cabinet correspond to the positions of the upper cabinet and the lower cabinet respectively.

As a further solution of the present invention: the fire extinguisher is a dry powder fire extinguisher.

As a further solution of the present invention: the fire extinguisher is provided with two nozzles.

As a further solution of the present invention: the spray head is a rotating spray head.

As a further solution of the present invention: the fire extinguisher is also provided with a pressure gauge.

As a further solution of the present invention: an alarm is installed on the top cover of the cabinet, and the alarm is electrically connected to the controller.

As a further solution of the present invention: the alarm is an audible and visual alarm.

Compared with prior art, the beneficial effect of the present invention is:

1. The present invention corresponds to two fans on the upper cabinet and the lower cabinet respectively. Through the cooperative work of the two fans on both sides, the ventilation and heat dissipation effects of the upper cabinet and the lower cabinet are greatly enhanced, and the upper cabinet is avoided. And the electrical components in the lower cabinet are affected by the long-term high temperature state, thereby prolonging the service life of the capacitor compensation cabinet.

2. The present invention is equipped with a fire extinguisher, which can extinguish the fire when the cabinet body catches fire, and eliminate the fire in the bud. At the same time, the alarm will be used to alert the operator to remind the operator, and the safety is high.

Description of drawings

Fig. 1 is a structural schematic diagram of a fire-proof and ventilated capacitor compensation cabinet when it is closed.

Fig. 2 is a schematic diagram of the structure of the fire-proof and ventilated capacitor compensation cabinet when it is opened.

Fig. 3 is a structural schematic diagram of a fire extinguisher in a fireproof and ventilated capacitance compensation cabinet.

Figure 4 is a schematic diagram of the electrical connection of the fire-proof and ventilated capacitance compensation cabinet.

In the figure: 1-cabinet body, 2-upper cabinet door, 3-transfer switch, 4-reactive power meter, 5-ammeter, 6-top cover, 7-power factor meter, 8-reactive power compensation controller, 9 -fan, 10-knife melting switch interface, 11-indicator light, 12-lower cabinet door, 13-lightning arrester, 14-temperature sensor, 15-upper cabinet, 16-smoke sensor, 17-fire extinguisher, 18-alarm, 19-knife fuse switch, 20-current transformer, 21-lower cabinet, 22-miniature circuit breaker, 23-AC contactor, 24-thermal relay, 25-AC capacitor, 26-partition, 27-bottom cavity, 28-battery, 29-controller, 30-pressure gauge, 31-solenoid valve, 32-nozzle, 33-nozzle.

detailed description

The technical solutions of the present invention will be further described in detail below in conjunction with specific embodiments.

Please refer to Figures 1-4, a fireproof and ventilated capacitance compensation cabinet, including a cabinet body 1; the cabinet body 1 is divided into an upper cabinet body 15 and a lower cabinet body 21, and the front end of the upper cabinet body 15 and the lower cabinet body 21 Correspondingly, an upper cabinet door 2 and a lower cabinet door 12 are provided, and the upper cabinet door 2 is provided with a transfer switch 3, a reactive power meter 4, an ammeter 5, a power factor meter 7, a reactive power compensation controller 8 and a knife fuse switch Interface 10, the lower cabinet door 12 is evenly spaced with a plurality of indicator lights 11 for indicating the working state of the capacitance compensation cabinet; in order to enhance the ventilation and heat dissipation effect of the cabinet 1, the cabinet 1 is provided with a fan 9 , the cabinet body 1 is ventilated through the fan 9, and the ventilation and heat dissipation effect of the cabinet body 1 is enhanced. The number and position of the fan 9 are set according to requirements. In this embodiment, preferably, there are four fans 9, The two fans 9 respectively arranged on both sides of the cabinet body 1 and located on the same side of the cabinet body 1 correspond to the positions of the upper cabinet body 15 and the lower cabinet body 21 respectively. Therefore, the upper cabinet body 15 and the lower cabinet body 21 respectively correspond to The two fans 9 work together through the two fans 9 on both sides, which greatly enhances the ventilation and heat dissipation effect of the upper cabinet 15 and the lower cabinet 21, and avoids the electrical components in the upper cabinet 15 and the lower cabinet 21 from being damaged. Being in a high temperature state for a long time affects the service life, thereby prolonging the service life of the capacitor compensation cabinet; the upper cabinet body 15 is provided with a lightning arrester 13, a knife fuse switch 19 and a current transformer 20, and the knife fuse switch 19 is located above the current transformer 20 , the lower cabinet 21 is provided with a miniature circuit breaker 22, an AC contactor 23, a thermal relay 24 and an AC capacitor 25, and the upper cabinet 15 and the lower cabinet 21 are provided with a temperature sensor 14 and a smoke sensor 16 And fire extinguisher 17, fire extinguisher 17 is provided with nozzle pipe 32, nozzle pipe 32 end is provided with nozzle 33, and nozzle pipe 32 is provided with solenoid valve 31, opens solenoid valve 31, and the fire extinguishing agent in the fire extinguisher 17 passes nozzle pipe 32 and nozzle 33 is sprayed into the cabinet 1 to realize the fire extinguishing function. In this embodiment, preferably, the fire extinguisher 17 is a dry powder fire extinguisher, and the fire extinguisher 17 is provided with two nozzles 32, and the nozzle 33 is a rotating nozzle to enhance In order to improve the fire extinguishing effect, in order to monitor the pressure in the fire extinguisher 17 and avoid the insufficient pressure of the fire extinguisher 17, the fire extinguisher 17 is also provided with a pressure gauge 30, and the cabinet 1 is also provided with a controller 29, the temperature sensor 14, the smoke sensor 16 and the solenoid valve 31 are electrically connected to the controller 29. When a fire occurs in the cabinet 1, the temperature sensor 14 and the smoke sensor 16 detect abnormal temperature or smoke signals, and send signals to the controller 29, and the controller 29 controls the solenoid valve 31 Open, put out the fire through the fire extinguisher 17, and eliminate the fire in the bud. When the capacitor compensation catches fire, it may cause the capacitor compensation cabinet to be powered off. In order to avoid the failure of the fire protection mechanism due to power failure, in the present invention, the A storage battery 28 is provided, and the storage battery 28 is electrically connected to the controller 29, and the storage battery 28 supplies power to the fire protection mechanism, thereby not relying on the power supply system of the capacitance compensation cabinet, which improves safety; the cabinet body An alarm 18 is also installed on the top cover 6 of 1, and the alarm 18 is electrically connected to the controller 29. When the capacitor compensation cabinet catches fire, the controller 29 will also control the alarm 18 to give an alarm when the fire extinguisher 17 is activated to extinguish the fire. , to remind the operator that in this embodiment, the alarm 18 is an audible and visual alarm.

The working principle of the present invention is: in the capacitor compensation cabinet for fire prevention and ventilation, the upper cabinet body 15 and the lower cabinet body 21 respectively correspond to two fans 9, and the two fans 9 located on both sides work together to greatly enhance the performance of the upper cabinet. The ventilation and heat dissipation effect of the body 15 and the lower cabinet body 21 prevents the electrical components in the upper cabinet body 15 and the lower cabinet body 21 from affecting the service life due to being in a high temperature state for a long time, thereby prolonging the service life of the capacitor compensation cabinet. When there is a fire in the cabinet body 1, the temperature sensor 14 and the smoke sensor 16 monitor abnormal temperature or smoke signal, and will send a signal to the controller 29, and the controller 29 controls the solenoid valve 31 to open. After the solenoid valve 31 is opened, the fire extinguisher 17 will The fire extinguishing agent is sprayed into the cabinet 1 through the nozzle 32 and the nozzle 33 to realize the fire extinguishing function and eliminate the fire in the bud. Meanwhile, the controller 29 will also control the alarm 18 to give an alarm to remind the operator.

In the present invention, the upper cabinet body 15 and the lower cabinet body 21 respectively correspond to two fans 9, and through the cooperative work of the two fans 9 on both sides, the ventilation and heat dissipation effects of the upper cabinet body 15 and the lower cabinet body 21 are greatly enhanced, avoiding The electrical components in the upper cabinet body 15 and the lower cabinet body 21 affect the service life due to being in a high temperature state for a long time, thereby prolonging the service life of the capacitor compensation cabinet. The present invention is provided with fire extinguisher 17, can carry out fire extinguishing when cabinet body 1 catches fire, eliminates fire in budding state, simultaneously, also can also give an alarm through alarm 18, reminds operator, and safety is high.

The preferred embodiments of the present invention have been described in detail above, but the present invention is not limited to the above-mentioned embodiments. Within the scope of knowledge possessed by those of ordinary skill in the art, various modifications can be made without departing from the gist of the present invention. kind of change.

Claims (8)

1. the capacitor compensation cabinet ventilated of preventing fires, including cabinet (1), it is characterized in that, upper wardrobe body (15) and lower cabinet body (21) it is divided in described cabinet (1), and upper wardrobe body (15) and lower cabinet body (21) front end are correspondingly arranged on Over-The-Counter door (2) and lower cabinet door (12), being provided with permutator (3), reactive volt-ampere meter (4), ammeter (5), power-factor meter (7), idle compensating control (8) and switch with knifeshaped fuse interface (10) on described Over-The-Counter door (2), the upper uniform intervals of described lower cabinet door (12) is laid with multiple display lamp (11)；Described cabinet (1) is provided with blower fan (9)；nullSpark gap (13) it is provided with in described upper wardrobe body (15)、Switch with knifeshaped fuse (19) summation current transformer (20)，Switch with knifeshaped fuse (19) is positioned at current transformer (20) top，Miniature circuit breaker (22) it is provided with in described lower cabinet body (21)、A.C. contactor (23)、Thermorelay (24) and AC capacitor (25)，It is provided with temperature sensor (14) in described upper wardrobe body (15) and lower cabinet body (21)、Smoke Sensor (16) and fire extinguisher (17)，Fire extinguisher (17) is provided with jet pipe (32)，Jet pipe (32) end is provided with shower nozzle (33)，And jet pipe (32) is provided with electromagnetic valve (31)，Controller (29) it is additionally provided with in cabinet (1)，Described temperature sensor (14)、Smoke Sensor (16) and electromagnetic valve (31) are all electrically connected controller (29)，Accumulator (28) it is provided with in described cabinet (1)，Accumulator (28) is electrically connected controller (29).

2. the capacitor compensation cabinet that fire prevention according to claim 1 is ventilated, it is characterized in that, described blower fan (9) has four, is separately positioned on the both sides of cabinet (1), and two blower fans (9) being positioned at cabinet (1) the same side are corresponding with upper wardrobe body (15) and lower cabinet body (21) position respectively.

3. the capacitor compensation cabinet that fire prevention according to claim 1 and 2 is ventilated, it is characterised in that described fire extinguisher (17) is dry powder extinguisher.

4. the capacitor compensation cabinet that fire prevention according to claim 3 is ventilated, it is characterised in that be provided with two jet pipes (32) on described fire extinguisher (17).

5. the capacitor compensation cabinet that fire prevention according to claim 4 is ventilated, it is characterised in that described shower nozzle (33) is rotary nozzle.

6. the capacitor compensation cabinet that fire prevention according to claim 5 is ventilated, it is characterised in that be additionally provided with Pressure gauge (30) on described fire extinguisher (17).

7. the capacitor compensation cabinet that fire prevention according to claim 6 is ventilated, it is characterised in that be also equipped with alarm (18) on the top cover (6) of described cabinet (1), alarm (18) is electrically connected controller (29).

8. the capacitor compensation cabinet that fire prevention according to claim 7 is ventilated, it is characterised in that described alarm (18) is audible-visual annunciator.