CN213024685U - Fire early warning system of high-voltage switch cabinet - Google Patents

Abstract

The utility model discloses a fire early warning system of a high-voltage switch cabinet, which comprises the high-voltage switch cabinet, a monitoring early warning device, a communication component and an upper computer, the high-voltage switch cabinet comprises a cabinet body and a cabinet door which are connected by a hinge, the cabinet body sequentially comprises an instrument room, a breaker room and a cable room from top to bottom, the cabinet door is provided with a fan and an integrated mainboard, the monitoring and early warning device comprises a central processing unit, a data collector and three temperature sensors, the three temperature sensors are respectively arranged in an instrument room, a breaker room and a cable room and are connected with the data collector, the data acquisition unit is connected with a central processing unit which is respectively connected with the communication component and the fan, the central processing unit is in data transmission with the upper computer through the communication assembly, and the data collector, the central processing unit and the communication assembly are all installed on the integrated mainboard. The utility model discloses can avoid the false alarm condition that environment temperature factor produced.

Description

Fire early warning system of high-voltage switch cabinet

Technical Field

The utility model relates to a cubical switchboard early warning technical field specifically is a high tension switchgear conflagration early warning system.

Background

High tension switchgear is the common important electrical equipment of transformer substation, high tension switchgear generally includes the instrument room, circuit breaker room and cable chamber, its operating voltage can reach 10kV, in the consideration of the aspect of safety, most high tension switchgear has adopted totally closed structure, lead to the radiating condition relatively poor, and contact in the cubical switchboard generates heat seriously, consequently, after long-time work, the inside heat of accumulating of high tension switchgear makes equipment overheated easily, if not in time handle, make the part ageing light, then cause serious incident seriously, consequently, need monitor high tension switchgear's operating temperature, prevent the overheated accident.

The temperature monitoring device is generally installed at cabinet body internally mounted to current high tension switchgear, and through setting up the high accident that causes of operating temperature in the prevention cabinet at the outside temperature alarm of each studio, after the internal portion of cabinet breaks down, the temperature can rise and change, report to the police through the alarm and carry out the early warning for terminal and scene, guarantee can in time repair before catching fire, but when summer high temperature, receive ambient temperature's influence, the temperature of the internal portion of cabinet also can rise and produce the change, probably can trigger the warning, but this temperature risees and does not represent high tension switchgear internal fault, consequently need distinguish the high temperature that the environment high temperature and inside produced of generating heat when monitoring the internal portion of cabinet.

SUMMERY OF THE UTILITY MODEL

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a high tension switchgear conflagration early warning system, includes high tension switchgear, monitoring and early warning device, communication subassembly and host computer, the high tension switchgear includes hinge connection's the cabinet body and cabinet door, the cabinet body is from last to including instrument room, circuit breaker room and cable chamber down in proper order, install fan and integrated mainboard on the cabinet door, monitoring and early warning device includes central processing unit, data collection station and three temperature sensor, and is three temperature sensor installs respectively in instrument room, circuit breaker room and cable chamber and is connected with data collection station, data collection station is connected with central processing unit, central processing unit is connected with communication subassembly and fan respectively, central processing unit carries out data transmission through communication subassembly and host computer, data collection station, central processing unit and communication subassembly are all installed on integrated mainboard.

Preferably, the monitoring and early warning device further comprises an exhaust hole and a gas analyzer, the exhaust hole is formed in the side wall of the instrument chamber, the side wall of the circuit breaker chamber and the side wall of the cable chamber, the gas analyzer is arranged outside the exhaust hole, a gas outlet communicated with the exhaust hole is formed in the gas analyzer, and the output end of the gas analyzer is electrically connected with the input end of the data acquisition unit.

Preferably, an audible and visual alarm is fixedly mounted at the top of the cabinet door, and the input end of the audible and visual alarm is connected with the output end of the central processing unit.

Preferably, the positions, close to the integrated main board, of two sides of the bottom of the cabinet door are provided with drying boxes, and drying agents are filled in the drying boxes.

Preferably, the communication assembly is a WIFI communication module.

Compared with the prior art, the beneficial effects of the utility model are as follows:

1. the utility model is provided with a temperature sensor in the instrument room, the breaker room and the cable room in the cabinet body, when high temperature is encountered in summer, the temperatures of the instrument room, the breaker room and the cable room are synchronously raised, when the three temperature sensors transmit temperature parameters to the upper computer, the three temperature parameters are close, the upper computer sends a heat dissipation instruction to the central processing unit, the heat dissipation is carried out by driving the fan, the alarm is not triggered, when the contact generates serious heat at a certain position in the cabinet body and the equipment generates high temperature due to overheating, as the three temperature sensors are positioned in three different chambers, the temperature parameters transmitted to the upper computer are necessarily different greatly, and the temperature parameters transmitted by the temperature sensors close to the fault point are necessarily larger than those of the other two temperature sensors at the beginning, so that the temperature sensors are judged to be fault heating, and the alarm is triggered while the fan radiates.

2. The utility model discloses still be equipped with exhaust hole and gas analyzer, utilize gas analyzer to carry out the analysis to the gas in the three storehouse, in time sense the change of gas in the three storehouse, when the gaseous great change that takes place in certain storehouse, then the affirmation breaks down, through joining in marriage gas analyzer cooperation temperature sensor, further guarantees the accuracy of early warning.

Drawings

Fig. 1 is a schematic structural view of the high-voltage switch cabinet of the present invention;

FIG. 2 is a structural diagram of the integrated motherboard of the present invention;

in the figure: 1. a communication component; 2. a cabinet body; 3. a cabinet door; 4. an instrument room; 5. a circuit breaker chamber; 6. a cable chamber; 7. a fan; 8. integrating the mainboard; 9. a central processing unit; 10. a data acquisition unit; 11. a temperature sensor; 12. an exhaust hole; 13. a gas analyzer; 14. an air outlet; 15. an audible and visual alarm; 16. and (7) drying the box.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-2, a fire early warning system for a high-voltage switch cabinet comprises a high-voltage switch cabinet, a monitoring early warning device, a communication component 1 and an upper computer, wherein the high-voltage switch cabinet comprises a cabinet body 2 and a cabinet door 3 which are connected by hinges, the cabinet body 2 sequentially comprises an instrument room 4, a breaker room 5 and a cable room 6 from top to bottom, the cabinet door 3 is provided with a fan 7 and an integrated mainboard 8, the monitoring early warning device comprises a central processing unit 9, a data acquisition unit 10 and three temperature sensors 11, the three temperature sensors 11 are respectively arranged in the instrument room 4, the breaker room 5 and the cable room 6 and are connected with the data acquisition unit 10, the temperature sensors 11 and the data acquisition unit 10 can be connected in a wired manner or a wireless manner, the data acquisition unit 10 is connected with the central processing unit 9, the central processing unit is respectively connected with the communication component 1 and the fan 7, the central processing unit 9 is, data collection station 10, central processing unit 9 and communication subassembly 1 are all installed on integrated mainboard 8, central processing unit 9 comprises treater and controller, data collection station 10 gathers the parameter transmission of three temperature sensor 11 and handles for central processing unit 9, send through communication subassembly 1 after the processing and carry out the analysis for the host computer, after the temperature parameter is too high, the host computer sends drive instruction and gives central processing unit 9, central processing unit 9 control fan 7 starts to dispel the heat. The monitoring and early warning device further comprises an exhaust hole 12 and a gas analyzer 13, the side walls of the instrument room 4, the breaker room 5 and the cable room 6 are all provided with the exhaust hole 12, the gas analyzer 13 is arranged outside the exhaust hole 12, the gas analyzer 13 is provided with a gas outlet 14 communicated with the exhaust hole 12, the output end of the gas analyzer 13 is electrically connected with the input end of the data collector 10, when the fan 7 dissipates heat, the gas in the three chambers enters the respective gas analyzers 13 along the respective exhaust holes 12 and is exhausted from the gas outlets 14 on the gas analyzers 13, the gas analyzers 13 analyze the gas entering the chambers, if the front and back variation of the gas monitored by one gas analyzer 13 is larger than or smaller than the variation monitored by the other two gas analyzers 13, the position of the chamber is judged to have an overheating fault, in this embodiment, the monitoring of the concentration of the carbon, if the concentration increase of the carbon dioxide gas monitored by one of the gas analyzers 13 is far greater than the concentration increase monitored by the other two gas analyzers 13, it is determined that an overheating fault occurs in a cable in a chamber monitored by the gas analyzer 13, an audible and visual alarm 15 is fixedly installed at the top of the cabinet door 3, an input end of the audible and visual alarm 15 is connected with an output end of the central processing unit 9, once a high-temperature parameter monitored by an upper computer is caused by overheating of internal equipment, a signal is sent to the central processing unit 9, the central processing unit 9 controls the audible and visual alarm 15 to perform alarm operation, drying boxes 16 are arranged at positions, close to the integrated main board 8, of two sides of the bottom of the cabinet door 3, drying agents are filled in the drying boxes 16, the drying agents are used for ensuring the drying of the integrated main board 8 and avoiding a short circuit fault caused by, parameter transmission or instruction sending is realized through a WIFI network.

The specific early warning steps of this embodiment are: the data acquisition unit 10 acquires temperature parameters of the three temperature sensors 11 in real time, the temperature parameters are processed by the central processing unit 9 and then sent to the upper computer, if the high-temperature parameters are monitored, the parameters transmitted by the three temperature sensors 11 are compared, if the three temperature parameters are close to each other, the temperature caused by external environmental factors is determined to be overhigh, the fan 7 is driven to dissipate heat, if one temperature parameter is far greater than the other two temperature parameters, the internal equipment is determined to be overheated, and the fan 7 is started to dissipate heat and simultaneously give an alarm in advance; after 7 drives of fan, the gas of three storehouses gets into gas analyzer 13 via exhaust hole 12, carry out concentration acquisition to gas in front and back by gas analysis room, the data that will gather send for the host computer through data collection station 10 one-level central processing unit 9 and analyze, if the variation is unanimous, then the affirmation does not have internal fault, if the gas concentration variation volume that certain gas analyzer 13 was gathered successively is too big, then the internal equipment trouble is affirmed, if certain storeroom temperature is too high and gas variation is great, then the overheated trouble of equipment appears in this storeroom position of hundred affirmations, need inform the maintenance personal to repair at the door.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (5)

1. The utility model provides a high tension switchgear conflagration early warning system which characterized in that: the high-voltage switch cabinet comprises a high-voltage switch cabinet body (2) and a cabinet door (3) which are connected through hinges, the cabinet body (2) sequentially comprises an instrument room (4), a breaker room (5) and a cable room (6) from top to bottom, a fan (7) and an integrated mainboard (8) are installed on the cabinet door (3), the monitoring and early-warning device comprises a central processing unit (9), a data acquisition unit (10) and three temperature sensors (11), the three temperature sensors (11) are respectively installed in the instrument room (4), the breaker room (5) and the cable room (6) and are connected with the data acquisition unit (10), the data acquisition unit (10) is connected with the central processing unit (9), the central processing unit is respectively connected with the communication component (1) and the fan (7), the central processing unit (9) is in data transmission with an upper computer through the communication component (1), and the data acquisition device (10), the central processing unit (9) and the communication assembly (1) are all installed on the integrated mainboard (8).

2. The fire early warning system of the high-voltage switch cabinet as claimed in claim 1, wherein: monitoring early warning device still includes exhaust hole (12) and gas analyzer (13), exhaust hole (12) have all been seted up on the lateral wall of instrument room (4), circuit breaker room (5) and cable chamber (6), exhaust hole (12) are equipped with gas analyzer (13) outward, be equipped with gas outlet (14) that are linked together with exhaust hole (12) on gas analyzer (13), the output of gas analyzer (13) is connected with the input electricity of data collection station (10).

3. The fire early warning system of the high-voltage switch cabinet as claimed in claim 2, wherein: the top of the cabinet door (3) is fixedly provided with an audible and visual alarm (15), and the input end of the audible and visual alarm (15) is connected with the output end of the central processing unit (9).

4. The fire early warning system of the high-voltage switch cabinet as claimed in claim 1, wherein: the drying box (16) is arranged at the position, close to the integrated main board (8), of the two sides of the bottom of the cabinet door (3), and drying agents are filled in the drying box (16).

5. The fire early warning system of the high-voltage switch cabinet as claimed in claim 1, wherein: the communication component (1) is a WIFI communication module.

Images