Gas leakage alarm monitoring split-screen system for electric power system

Abstract

The utility model provides a gas leakage alarm monitoring split-screen system for an electric power system, which comprises a monitoring host, at least one two-in-one transmitter, at least one four-in-one transmitter, at least one split-screen auxiliary machine, an alarm, at least one LED display screen and a remote monitoring system, and the working information of the monitoring host can be obtained through the APP. The monitoring split-screen system is provided with a monitoring host and a plurality of split-screen auxiliary machines which can be in information intercommunication with the monitoring host, and the monitoring host is arranged at a main access, so that centralized control operation is facilitated; and split-screen auxiliary machines are respectively arranged at other entrances and exits, so that visual monitoring data can be provided for personnel who are ready to enter the power equipment area.

Description

Technical Field

[0001] The utility model relates to a gas leakage alarm monitoring sub-screen system for a power system.

Background Art

[0002] SF6 gas is widely used in the power system and has almost become the only insulating and arc-extinguishing medium for medium-voltage, high-voltage, and extra-high-voltage electrical equipment. SF6 gas is an inert gas that is colorless, odorless, tasteless, non-toxic, and heavier than air, and it is not easily mixed with air. Pure SF6 is not toxic to the human body, but it cannot sustain life. SF6 is a simple asphyxiant. Exposure to an atmosphere with an O2 content less than 19.5% will cause dizziness, coma, increased saliva, slow reaction, nausea, vomiting, loss of consciousness, and even death. Exposure to an atmosphere with an O2 content less than 12% will cause loss of consciousness without any warning and the loss of the ability to self-rescue. Therefore, SF6 gas monitoring devices are installed near power equipment, and monitoring hosts, alarms, etc. are also installed at the entrances to the power equipment area to comprehensively remind personnel entering the equipment area whether there is SF6 gas leakage in the current environment and whether the oxygen content is sufficient. However, there are often multiple entrances and exits in a power equipment area, and other entrances and exits do not have monitoring hosts to provide monitoring data. Usually, only alarms are used for reminder. When the alarm fails, personnel who enter by mistake may be in danger of life.

Content of the Utility Model

[0003] The purpose of the utility model is to overcome the above problems. We provide a gas leakage alarm monitoring sub-screen system for a power system. This monitoring sub-screen system can meet the current installation requirements and configure sub-screen slave machines for each entrance and exit.

[0004] To achieve the above purpose, we provide a gas leakage alarm monitoring sub-screen system for a power system, which includes:

[0005] A monitoring host with a voice prompt module;

[0006] At least one two-in-one transmitter, which is configured with an SF6 detection sensor and an oxygen content detection sensor, and the two-in-one transmitter is connected to the monitoring host;

[0007] At least one four-in-one transmitter, which is configured with an SF6 detection sensor, an oxygen content detection sensor, a temperature detection sensor, and a humidity detection sensor, and the four-in-one transmitter is connected to the monitoring host;

[0008] At least one sub-screen slave machine, which is in data communication with the monitoring host and can obtain data information from the monitoring host; the sub-screen slave machine, the two-in-one transmitter, and the four-in-one transmitter are connected in parallel for communication;

[0009] An alarm, which is connected to the monitoring host and works according to the signal of the monitoring host to issue an alarm;

[0010] At least one LED display screen, which is connected to the monitoring host and works according to the signal of the monitoring host;

[0011] A remote monitoring system, which establishes a communication connection with the monitoring host and can obtain the working information of the monitoring host through an APP.

[0012] In one or more embodiments, the alarm is an audible and visual combined alarm, and the number of alarms is multiple, and the alarms are provided at least at the monitoring host, the sub-screen secondary machine, the two-in-one transmitter, and the four-in-one transmitter.

[0013] In one or more embodiments, the monitoring sub-screen system further includes a human body infrared sensor, which is arranged at the monitoring host. When the human body infrared sensor is triggered, the voice prompt module works to issue a prompt voice.

[0014] In one or more embodiments, the monitoring sub-screen system further includes a ventilation device, which is connected to the monitoring host and is controlled by the monitoring host to work.

[0015] In one or more embodiments, the two-in-one transmitter, the four-in-one transmitter, the sub-screen secondary machine and the monitoring host are connected and communicate through an RS-485 bus.

[0016] Compared with the background technology, the utility model has the following technical effects: The monitoring sub-screen system has a monitoring host and multiple sub-screen secondary machines that can communicate with the monitoring host. By setting the monitoring host at the main entrance, it is convenient for centralized control and operation; sub-screen secondary machines are respectively set at other entrances to provide visual monitoring data for personnel preparing to enter the power equipment area.

Description of the Drawings

[0017] Figure 1 It is a schematic structural diagram of the monitoring sub-screen system according to the embodiment of the utility model.

Detailed Embodiment

[0018] In order to deepen the understanding of the utility model, the following will further elaborate on the utility model in combination with embodiments and drawings. The embodiment is only used to explain the utility model and does not constitute a limitation on the protection scope of the utility model.

[0019] Please refer to Figure 1 , this application provides a gas leakage alarm monitoring sub-screen system for a power system, which includes:

[0020] A monitoring host 1, which has a voice prompt module;

[0021] At least one two-in-one transmitter 2, which is configured with a sulfur hexafluoride detection sensor and an oxygen content detection sensor. The two-in-one transmitter is connected to the monitoring host 1 and can monitor the sulfur hexafluoride content and oxygen content in the environment.

[0022] At least one four-in-one transmitter 3, which is configured with a sulfur hexafluoride detection sensor, an oxygen content detection sensor, a temperature detection sensor and a humidity detection sensor. The four-in-one transmitter is connected to the monitoring host 1 and can monitor the sulfur hexafluoride content and oxygen content in the environment.

[0023] At least one sub-screen secondary unit 4, which has data communication with the monitoring host 1 and can obtain data information from the monitoring host. The sub-screen secondary unit 4, the two-in-one transmitter 2 and the four-in-one transmitter 3 are connected in parallel for communication. One sub-screen secondary unit is configured on each side door entering the power equipment area, so that the entering personnel can view the sulfur hexafluoride and oxygen content through the sub-screen secondary unit before entering.

[0024] An alarm 5, which is connected to the monitoring host 1 and works to issue an alarm according to the signal of the monitoring host. The alarm is an audible and visual combined alarm. The number of alarms is multiple, and at least the monitoring host 1, the sub-screen secondary unit 4, the two-in-one transmitter 2, and the four-in-one transmitter 3 are provided with the alarm, so that the personnel preparing to enter the power equipment area and the personnel beside the power equipment can timely discover the alarm information through the alarm and quickly evacuate.

[0025] At least one LED display screen 6, which is connected to the monitoring host 1 and works according to the signal of the monitoring host. Specifically, when the monitoring host does not receive an alarm message, the LED display screen shows that the current area is safe; otherwise, it shows words such as the current area is unsafe.

[0026] A remote monitoring system 7, which establishes a communication connection with the monitoring host 1 and can obtain the working information of the monitoring host through an APP, so as to remotely view the numerical information obtained on the monitoring host at any time in a remote control center and implement remote commands according to the numerical information.

[0027] Specifically, when the sulfur hexafluoride value in the environment reaches 1000 ppm or the oxygen content is lower than 18%, the alarm issues an audible and visual alarm; and the LED display screen also shows words such as the current area is unsafe to remind the personnel in this area to evacuate as soon as possible.

[0028] The monitoring split-screen system further includes a human body infrared sensor 8, which is arranged at the monitoring host 1. When the human body infrared sensor is triggered, the voice prompt module works to emit a prompt voice. When the human body infrared sensor recognizes that someone is about to enter, the monitoring host issues a corresponding voice prompt according to the numerical information obtained currently. The voice prompt can be: Safe to enter or Unsafe, please evacuate, etc.

[0029] The monitoring split-screen system further includes a ventilation device 9, which is connected to the monitoring host 1 and is controlled by the monitoring host to work. The ventilation device is installed in the power equipment area for ventilation and exhaust. When working, it can discharge the air in the power equipment area outdoors and introduce fresh air. When the sulfur hexafluoride value in the environment reaches 1000 ppm, or the oxygen content is lower than 18%, the ventilation device starts to work, or the ventilation device of the air is regularly controlled by the monitoring host.

[0030] The two-in-one transmitter 2, the four-in-one transmitter 3, the split-screen slave unit 4 and the monitoring host 1 are connected and communicate through the RS-485 bus. Using RS-485 communication has the advantages of high transmission efficiency, long transmission distance and strong anti-interference ability.

[0031] The above is the preferred embodiment of the present invention. The protection scope of the present invention is not limited to the above embodiments. Any equivalent modification or change made by those of ordinary skill in the art according to the disclosure of the present invention shall be included in the protection scope recorded in the claims.

Claims

1. A gas leakage alarm monitoring sub-screen system for a power system, characterized in that, Including: A monitoring host (1) with a voice prompt module; At least one two-in-one transmitter (2), the two-in-one transmitter is configured with a sulfur hexafluoride detection sensor and an oxygen content detection sensor, and the two-in-one transmitter is connected to the monitoring host (1); At least one four-in-one transmitter (3), the four-in-one transmitter is configured with a sulfur hexafluoride detection sensor, an oxygen content detection sensor, a temperature detection sensor and a humidity detection sensor, and the four-in-one transmitter is connected to the monitoring host (1); At least one sub-screen slave unit (4), the sub-screen slave unit communicates with the monitoring host (1) for data interchange and can obtain data information from the monitoring host; the sub-screen slave unit (4), the two-in-one transmitter (2) and the four-in-one transmitter (3) are connected in parallel for communication; An alarm (5), the alarm is connected to the monitoring host (1), and the alarm works to issue an alarm according to the signal of the monitoring host; At least one LED display screen (6), the LED display screen is connected to the monitoring host (1), and the LED display screen works according to the signal of the monitoring host; A remote monitoring system (7), the remote monitoring system establishes a communication connection with the monitoring host (1) and can obtain the working information of the monitoring host through an APP; The alarm (5) is an audible and visual combined alarm, and the number of alarms is multiple, and at least the monitoring host (1), the sub-screen slave unit (4), the two-in-one transmitter (2), and the four-in-one transmitter (3) are provided with the alarm; The monitoring sub-screen system further includes a human body infrared sensor (8), the human body infrared sensor is arranged at the monitoring host (1), and when the human body infrared sensor is triggered, the voice prompt module works to issue a prompt voice; The monitoring sub-screen system further includes a ventilation device (9), the ventilation device is connected to the monitoring host (1) and is controlled by the monitoring host to work; The two-in-one transmitter (2), the four-in-one transmitter (3), the sub-screen slave unit (4) and the monitoring host (1) are connected and communicate through an RS-485 bus.

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