CN110349375A - A kind of SF6 electrical equipment gas leakage alarming system - Google Patents

Abstract

The present invention proposes a gas leakage alarm system for SF6 electrical equipment, including a processor, an SF6 detection module, a power supply module, a communication module, a display module, and an alarm module, wherein the output end of the SF6 detection module is connected to the input end of the processor, and the processing The device is connected with the communication module, the display module, and the alarm module; the power supply module supplies power to the processor, the SF6 detection module, the communication module, and the display module through the connection with the processor; the SF6 detection module includes a SF6 concentration tester and an oxygen concentration tester. The SF6 detection module detects the SF6 concentration and oxygen concentration data in the SF6 electrical equipment in real time, and then sends them to the processor for judgment, and transmits the collected data to the display module for display. When the processor judges the collected two gas concentrations At the same time, if the preset safety threshold is exceeded, the judgment result and collected data will be sent to the communication terminal of the staff through the communication module to realize the alarm.

Description

A gas leakage alarm system for SF6 electrical equipment

technical field

The invention relates to the technical field of auxiliary devices for electric power equipment, and more specifically, relates to a gas leakage alarm system for SF6 electrical equipment.

Background technique

With the continuous development of power systems, SF6 electrical equipment is more and more widely used, with the advantages of convenient installation, safe and reliable operation, and convenient maintenance. SF6 electrical equipment is generally used in GIS power distribution equipment room, in which SF6 gas is used as insulating gas to seal and combine electrical components such as circuit breakers, disconnectors, grounding switches, transformers, lightning arresters, busbars, bushings and cable terminals. grounded metal enclosure.

However, in power system applications, due to long service life, improper use or external animal interference, SF6 power equipment has potential safety hazards of gas leakage, and when SF6 gas leaks and accumulates to a certain concentration in the lower space, it is unknown. Serious personal safety accidents such as brain hypoxia and even rapid suffocation will occur to the staff. At present, in power system applications, SF6 concentration alarms are generally used to detect the concentration inside SF6 electrical equipment, but only when the concentration inside the electrical equipment exceeds the safety threshold can the alarm be issued. If the safety threshold is set too high, when the staff It is difficult to maintain SF6 electrical equipment, and there are still certain safety hazards in the maintenance process; if the safety threshold is set too low, false alarms may occur, increasing the workload of the staff and wasting manpower resource.

Contents of the invention

The present invention provides a kind of SF6 electrical equipment gas leakage alarm system for overcoming the defect that the SF6 concentration alarm device described in the above prior art is prone to false alarms, by simultaneously detecting the SF6 concentration and oxygen concentration in the power equipment, the detection accuracy is improved Accuracy.

In order to solve the problems of the technologies described above, the technical solution of the present invention is as follows:

A gas leakage alarm system for SF6 electrical equipment, including a processor, an SF6 detection module, a power supply module, a communication module, a display module, and an alarm module, wherein the output of the SF6 detection module is connected to the input of the processor, and the processor and the communication The module, the display module, and the alarm module are connected; the power supply module supplies power to the processor, the SF6 detection module, the communication module, and the display module respectively by connecting with the processor; the SF6 detection module includes a SF6 concentration tester and an oxygen concentration tester.

In this technical solution, the SF6 detection module respectively detects the SF6 concentration and oxygen concentration data in the SF6 electrical equipment in real time, and then sends them to the processor for analysis and processing, and transmits the collected SF6 concentration and oxygen concentration data to the display module for further processing. Display; when the processor judges that the SF6 concentration data in the SF6 electrical equipment is higher than the preset SF6 safety threshold, and the oxygen concentration data is lower than the preset oxygen alarm threshold, the judgment result and the collected data will be sent to the The staff's communication terminal realizes the alarm.

Preferably, the power supply module includes a solar panel, a battery pack, and a lithium battery, wherein the output end of the solar panel is connected to the charging end of the battery pack, the output end of the lithium battery is connected to the charging end of the battery pack, and the output end of the battery pack is used as a power supply module The output terminal is connected with the power supply terminal of the processor.

Preferably, the communication module includes at least one of a GPRS module, an EDGE module, a 3G module, and a short message module.

Preferably, the display module includes an LED display or an LCD display.

Preferably, the warning module includes at least one of a buzzer and a warning light.

Preferably, the system also includes a fan for reducing the SF6 gas concentration in the SF6 electrical equipment, wherein the fan is connected to the processor; when the processor judges that the SF6 concentration data in the SF6 electrical equipment is higher than the preset SF6 safety threshold, the oxygen concentration When the data is lower than the preset oxygen alarm threshold, the processor sends an electric signal to the fan, and the fan is turned on and works.

Preferably, the system also includes a bird repelling device, wherein the bird repelling device includes an infrared detection sensor for detecting whether an animal is approaching and an ultrasonic transducer for driving away an approaching animal, and the output terminal of the infrared detection sensor is connected to the processor The input terminal is connected, and the processor judges whether there is a creature approaching according to the data of the infrared detection sensor. If so, the processor sends an electric signal to the ultrasonic transducer, and the ultrasonic transducer is turned on and works.

Compared with the prior art, the beneficial effect of the technical solution of the present invention is: by simultaneously detecting the SF6 gas concentration and the oxygen concentration in the SF6 electrical equipment and performing analysis and judgment processing, the accuracy rate of gas leakage detection of the SF6 electrical equipment is further improved; When the SF6 concentration in the equipment is too high, the pneumatically added fan can effectively reduce the maintenance work difficulty of the staff; the additional bird repellent device can effectively avoid the interference of external animals on the electrical equipment, and reduce the risk of gas leakage of SF6 electrical equipment from the source. possibility.

Description of drawings

Fig. 1 is the structural representation of the SF6 electrical equipment gas leakage alarm system of embodiment 1.

Fig. 2 is the structural representation of the SF6 electrical equipment gas leakage alarm system of embodiment 2.

Detailed ways

The accompanying drawings are for illustrative purposes only and cannot be construed as limiting the patent;

In order to better illustrate this embodiment, some parts in the drawings will be omitted, enlarged or reduced, and do not represent the size of the actual product;

For those skilled in the art, it is understandable that some well-known structures and descriptions thereof may be omitted in the drawings.

The technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and embodiments.

Example 1

As shown in Figure 1, it is a structural schematic diagram of the SF6 electrical equipment gas leakage alarm system of the present embodiment.

The present embodiment proposes a kind of SF6 electrical equipment gas leakage alarm system, including processor 1, SF6 detection module 2, power supply module 3, communication module 4, display module 5, alarm module 6, blower fan 7, wherein, SF6 detection module 2 The output end is connected with the input end of the processor 1, and the processor 1 is connected with the communication module 4, the display module 5, and the alarm module 6; The module 4 and the display module 5 supply power.

In the present embodiment, SF detection module 2 comprises SF Concentration tester 21, oxygen concentration tester 22, wherein, SF Concentration tester 21 is used for detecting the SF6 gas concentration in SF6 electrical equipment, and oxygen concentration tester 22 is used for detecting SF6 The oxygen concentration in the electrical equipment, the gas concentration data collected by the SF6 concentration tester 21 and the oxygen concentration tester 22 are respectively sent to the processor 1 for analysis and processing.

In this embodiment, the power supply module 3 includes a solar panel 31, a battery pack 32, and a lithium battery 33, wherein the output terminal of the solar panel 31 is connected to the charging terminal of the battery pack 32, and the output terminal of the lithium battery 33 is connected to the charging terminal of the battery pack 32. The output end of the battery pack 32 is connected to the power supply end of the processor 1 as the output end of the power supply module 3 .

In the present embodiment, communication module 4 comprises GPRS module, and processor 1 sends gas concentration data and alarm signal to communication module 4 and sends in the communication terminal of the staff member in the same local area network by its GPRS module, guarantees with this SF6 electric equipment nearest The staff can obtain the alarm signal in time and repair the SF6 power equipment in time.

In this embodiment, the display module 5 includes an LED display screen, and the alarm module 6 includes a buzzer 61 and an alarm light 62 .

In the present embodiment, the fan 7 is connected to the processor 1; when the processor 1 judges that the SF6 concentration data in the SF6 electrical equipment is higher than the preset SF6 safety threshold, and the oxygen concentration data is lower than the preset oxygen alarm threshold, the processor will 1 Send an electrical signal to the fan 7, and the fan 7 is turned on and works.

In the specific implementation process, the SF6 gas concentration safety threshold and the oxygen concentration safety threshold are preset in the processor 1, and the SF6 detection module 2 detects the SF6 gas concentration in the SF6 electrical equipment in real time through the F6 concentration tester 21. 22 Monitor the oxygen concentration data in the SF6 electrical equipment in real time, and then send the collected SF6 gas concentration data and oxygen concentration data to the processor 1 for logical judgment analysis and processing, and at the same time, the collected SF6 gas concentration data and oxygen concentration The data is transmitted to the display module 5 by the processor 1 for display; if the processor 1 judges that the currently collected SF6 gas concentration data is greater than the preset SF6 gas concentration safety threshold, and the currently collected oxygen concentration data is greater than the preset oxygen concentration. Concentration safety threshold, then the judgment result and the collected data are sent to the communication terminal of the staff of the same local area network through the communication module 4, and the alarm is realized; at the same time, the processor 1 sends an electric signal to the alarm module 6, and the buzzer in the alarm module 6 The device 61 and the alarm light 62 are turned on and working; the processor 1 sends an electric signal to the fan 7, and the fan 7 is turned on and works.

In the present embodiment, by simultaneously detecting the SF6 gas concentration and the oxygen concentration in the SF6 electrical equipment and performing analysis and judgment processing, the accuracy rate of the gas leakage detection of the SF6 electrical equipment is further improved; when the SF6 concentration in the electrical equipment is too high, the pneumatic additional The fan can effectively reduce the maintenance work difficulty of the staff.

Example 2

As shown in Figure 2, it is a schematic structural diagram of the SF6 electrical equipment gas leakage alarm system of this embodiment.

This embodiment proposes a gas leakage alarm system for SF6 electrical equipment, including a processor 1, an SF6 detection module 2, a power supply module 3, a communication module 4, a display module 5, an alarm module 6, and a bird repelling device 8, wherein the SF6 detection module The output end of 2 is connected with the input end of processor 1, and processor 1 is connected with communication module 4, display module 5, alarm module 6; , the communication module 4 and the display module 5 for power supply. SF6 detection module 2 comprises SF6 concentration tester 21, oxygen concentration tester 22, wherein, SF6 concentration tester 21 is used for detecting the SF6 gas concentration in SF6 electrical equipment, and oxygen concentration tester 22 is used for detecting the oxygen in SF6 electrical equipment Concentration, the gas concentration data collected by the SF6 concentration tester 21 and the oxygen concentration tester 22 are respectively sent to the processor 1 for analysis and processing. The power supply module 3 includes a solar panel 31, a battery pack 32, and a lithium battery 33, wherein the output end of the solar panel 31 is connected to the charging end of the battery pack 32, the output end of the lithium battery 33 is connected to the charging end of the battery pack 32, and the battery pack 32 The output terminal of the power supply module 3 is connected to the power supply terminal of the processor 1 as the output terminal of the power supply module 3 . The communication module 4 is a GPRS module, and the processor 1 sends gas concentration data and alarm signals to the communication module 4 and sends them to the communication terminals of the staff in the same local area network through its GPRS module, so as to ensure that the staff closest to the SF6 power equipment can timely Obtain the alarm signal and repair the SF6 power equipment in time.

In this embodiment, the display module 5 includes an LCD display screen, and the alarm module 6 includes a buzzer 61 and an alarm light 62 .

In this embodiment, the bird repelling device 8 includes an infrared detection sensor 81 for detecting whether an animal is approaching and an ultrasonic transducer 82 for driving away an approaching animal, wherein the output terminal of the infrared detection sensor 81 is connected to the processor 1 The input end is connected, and the processor 1 judges whether there is a creature approaching according to the data of the infrared detection sensor 81, and if so, the processor 1 sends an electric signal to the ultrasonic transducer 82, and the ultrasonic transducer 82 is turned on and works.

In the specific implementation process, the SF6 gas concentration safety threshold and the oxygen concentration safety threshold are preset in the processor 1, and the SF6 detection module 2 detects the SF6 gas concentration in the SF6 electrical equipment in real time through the F6 concentration tester 21. 22 Monitor the oxygen concentration data in the SF6 electrical equipment in real time, and then send the collected SF6 gas concentration data and oxygen concentration data to the processor 1 for logical judgment analysis and processing, and at the same time, the collected SF6 gas concentration data and oxygen concentration The data is transmitted to the display module 5 by the processor 1 for display; if the processor 1 judges that the currently collected SF6 gas concentration data is greater than the preset SF6 gas concentration safety threshold, and the currently collected oxygen concentration data is greater than the preset oxygen concentration. Concentration safety threshold, then the judgment result and the collected data are sent to the communication terminal of the staff of the same local area network through the communication module 4, and the alarm is realized; at the same time, the processor 1 sends an electric signal to the alarm module 6, and the buzzer in the alarm module 6 Device 61 and warning light 62 conduct and work. In addition, the bird repelling device 8 operates simultaneously, wherein, the output end of the infrared detection sensor 81 is connected with the input end of the processor 1, and the processor 1 judges whether there is a creature approaching according to the data of the infrared detection sensor 81, and if so, the processor 1 The ultrasonic transducer 82 sends electrical signals, and the ultrasonic transducer 82 is turned on and works.

In this embodiment, the additional bird repelling device can effectively avoid the interference of external animals to the electrical equipment, and reduce the possibility of gas leakage from the SF6 electrical equipment from the source.

The same or similar reference numerals correspond to the same or similar components;

The terms describing the positional relationship in the drawings are only for illustrative purposes and cannot be interpreted as limitations on this patent;

Apparently, the above-mentioned embodiments of the present invention are only examples for clearly illustrating the present invention, rather than limiting the implementation of the present invention. For those of ordinary skill in the art, other changes or changes in different forms can be made on the basis of the above description. It is not necessary and impossible to exhaustively list all the implementation manners here. All modifications, equivalent replacements and improvements made within the spirit and principles of the present invention shall be included within the protection scope of the claims of the present invention.

Claims (7)

1. a SF6 electrical equipment gas leakage alarm system is characterized in that: comprise processor, SF6 detection module, power supply module, communication module, display module, warning module, wherein, the output terminal of described SF6 detection module and processor The input terminal is connected, and the processor is connected with the communication module, the display module, and the alarm module; the power supply module is connected with the processor, and supplies power to the processor, the SF6 detection module, the communication module, and the display module respectively; the SF6 detection module Modules include SF6 concentration tester, oxygen concentration tester; The SF6 detection module detects the SF6 concentration and oxygen concentration data in the SF6 electrical equipment in real time respectively, then sends them to the processor for analysis and processing, and transmits the collected SF6 concentration and oxygen concentration data to the display module for display; The processor judges that the SF6 concentration data in the SF6 electrical equipment is higher than the preset SF6 safety threshold, and at the same time, when the oxygen concentration data is lower than the preset oxygen alarm threshold, the judgment result and the collected data are sent to the working unit through the communication module. The personnel's communication terminal realizes the alarm. 2. The SF6 electrical equipment gas leakage alarm system according to claim 1, characterized in that: the power supply module includes a solar panel, a battery pack, and a lithium battery, wherein the output end of the solar panel is connected to the charging end of the battery pack , the output end of the lithium battery is connected to the charging end of the battery pack, and the output end of the battery pack is connected to the power supply end of the processor as the output end of the power supply module. 3. The SF6 electrical equipment gas leakage alarm system according to claim 1, characterized in that: the communication module includes at least one of a GPRS module, an EDGE module, a 3G module, and a short message module. 4. The SF6 electrical equipment gas leakage alarm system according to claim 1, characterized in that: the display module includes an LED display or an LCD display. 5. The SF6 electrical equipment gas leakage alarm system according to claim 1, characterized in that: the alarm module includes at least one of a buzzer and an alarm lamp. 6. The SF6 electrical equipment gas leakage alarm system according to any one of claims 1 to 5, characterized in that: the system also includes a fan, and the fan is connected to the processor; when the processor judges that SF6 When the SF6 concentration data in the electrical equipment is higher than the preset SF6 safety threshold and the oxygen concentration data is lower than the preset oxygen alarm threshold, the processor sends an electrical signal to the fan, and the fan is turned on and works. 7. The SF6 electrical equipment gas leakage alarm system according to any one of claims 1 to 5, characterized in that: the system also includes a bird repelling device, and the bird repelling device includes an infrared detection sensor and an ultrasonic transducer, Wherein, the output end of the infrared detection sensor is connected to the input end of the processor, and the processor judges whether there is a creature approaching according to the data of the infrared detection sensor, and if so, the processor sends an electrical signal to the ultrasonic transducer, The ultrasonic transducer is turned on and works.