CN114876333A - A monitoring intelligent fire door - Google Patents

Abstract

The invention relates to a monitoring intelligent fireproof door which comprises a fireproof door body arranged on a monitoring area and used for sealing the monitoring area, and an SF6 gas detector, a hydrogen sulfide detection sensor, a carbon monoxide sensor and a combustible gas sensor which are arranged on the fireproof door body. The fireproof door body is provided with an opening and closing device for controlling the fireproof door body to be opened or closed, and the opening and closing device is electrically connected with the SF6 gas detector and the sensor respectively. When any one of SF6 gas, hydrogen sulfide, carbon monoxide, combustible gas, oxygen content and temperature and humidity is unqualified in the monitoring area, the controller controls the opening and closing device to close, and starts the fan to exhaust air, and the controller starts the audible and visual alarm to give an alarm. When certain detection in the equipment room is unqualified in other content monitoring, the fireproof door is automatically locked, and field operation personnel cannot enter the equipment room, so that accidents are prevented.

Description

A monitoring intelligent fire door

technical field

The invention belongs to the technical field of safety protection, and in particular relates to a monitoring intelligent fire door.

Background technique

With the increasing demand for indoor substation construction, GIS equipment is widely used. GIS (GAS insulated SWITCHGEAR) is the English abbreviation of gas insulated fully enclosed combined electrical appliances. GIS consists of circuit breakers, isolating switches, grounding switches, transformers, arresters, busbars, connectors and outgoing terminals, etc. These devices or components are all enclosed in a metal grounded shell, and filled with a certain pressure of SF6 insulating gas inside , so it is also called SF6 fully enclosed combination appliance.

In the power industry, SF6 gas is mainly used as an excellent insulating and arc extinguishing medium and has been successfully used in high-voltage switches and their equipment. The only insulating and arc extinguishing medium. Sulfur hexafluoride, chemical formula SF6, is a colorless, odorless, non-toxic, non-flammable stable gas with a molecular weight of 146.06 and a density of 6.1kg/m ³ at 20°C and 0.1MPa, which is about the density of air. 5 times, sulfur hexafluoride is gaseous at normal temperature and pressure. The molecular structure of sulfur hexafluoride is arranged in octahedron, the bonding distance is small, and the bonding energy is high, so its stability is very high. When the temperature does not exceed 180 °C, its compatibility with electrical structural materials is similar to that of nitrogen.

Since the mid-1960s, SF6 has been widely used as an insulating medium for high-voltage electrical equipment. SF6 gas-insulated fully enclosed switchgear has a much smaller footprint than conventional open-type high-voltage power distribution devices, and its operation is not affected by external weather and environmental conditions, so it is not only widely used in ultra-high voltage and ultra-high voltage power systems, but also And it has begun to be used in distribution networks (SF6 gas-insulated switchgear and ring network power supply units). The advantages of SF6 gas-insulated pipeline transmission lines are that the dielectric loss is small, the transmission capacity is large, and it can be used in high drop situations. Therefore, it is often used in the outlet of hydropower stations to replace conventional oil-filled cables. SF6 gas-insulated transformers have the advantages of fire and explosion protection. This distribution transformer is especially suitable for power supply in densely populated areas and high-rise buildings. The SF6 gas-insulated ultra-high voltage transformer has been successfully developed, and the all-gas-insulated substation will be a direction for the development of substation technology.

In indoor substations, the air circulation speed is relatively slow. If SF6 gas leaks, it will be deposited in the room and will not be easily emitted. SF6 gas itself is colorless and odorless, and it is difficult to be detected after leakage. In addition, because the specific gravity of SF6 gas is larger than that of oxygen, it is often deposited in the lower space, which is easy to cause local hypoxia, causing dizziness, increased saliva, unresponsiveness, nausea, vomiting, coma, etc., until loss of consciousness and death. It will pose a great safety hazard to the on-site staff. In order to ensure the normal and safe operation of the equipment and fully protect the physical health and personal safety of the on-site personnel, effective measures must be taken to monitor the leakage of sulfur hexafluoride gas in the equipment area to prevent accidents.

In the prior art, the Chinese patent with the application number of 202122412614.9 discloses a monitoring device for SF6 gas leakage, including an alarm host, which is provided with a sliding cover mechanism, and the bottom of the alarm host is provided with a beam wire. The sliding cover mechanism is provided with a fixing mechanism; the sliding cover mechanism includes a vertical plate, a chute, a cover plate, a fixed block and an elastic rope, and the left and right sides of the alarm host are fixedly installed with vertical plates, two A chute is provided on the opposite side of each of the vertical plates, and the opposite sides of the inner walls of the two chute are movably connected with the cover plate. The Chinese patent with the application number of 202010298211.3 discloses a detection system for a sulfur hexafluoride leakage alarm device, which includes a standard gas dilution device, a detection device and a tail gas recovery device connected in sequence; the standard gas dilution device is used for SF6 standard gas and / or O2 standard gas diluted to a preset concentration and then passed into the detection device; the detection device is a hollow semi-elliptical structure, used to cover the probe of the sulfur hexafluoride leakage alarm device and ensure that the lower part fits the ground; the exhaust gas recovery device It is used to recover the exhaust gas flowing out from the detection device. The standard gas dilution device dilutes and mixes the standard gas and passes it into the detection device. The detection device is used to cover the probe of the SF6 leakage alarm device to be tested. The hollow semi-elliptical structure is used to make the mixed gas flow fully in the detection device. Ensure the stability of the gas concentration in the detection device; the exhaust gas recovery device reduces the emission of SF6.

However, the existing problem is that the existing SF6 gas leakage monitoring device is an independent product without effective linkage with the fire door of the indoor equipment room. Even if the monitoring of SF6 and oxygen content in the equipment room fails, it cannot completely prevent the on-site operation. When personnel enter the equipment room, there is a certain operational risk. In the prior art, there is not only the risk of SF6 gas leakage but also the risk of excessive content of other gases in the equipment room.

SUMMARY OF THE INVENTION

In order to overcome the above-mentioned deficiencies of the prior art, the present invention provides a monitoring intelligent fire door, which can automatically lock the fire door when the monitoring of SF6, hydrogen sulfide, carbon monoxide, combustible gas, oxygen content and temperature and humidity in the equipment room is unqualified. It is impossible to enter the equipment room to prevent accidents.

The technical scheme adopted in the present invention is: it includes a fire door body arranged on the monitoring area for sealing the monitoring area, and an SF6 gas detector, a hydrogen sulfide detection sensor, a SF6 gas detector, a hydrogen sulfide detection sensor, A carbon monoxide sensor and a combustible gas sensor, the SF6 gas detector, the hydrogen sulfide detection sensor, the carbon monoxide sensor and the combustible gas sensor are located inside the monitoring area; the fire door body is provided with a device for controlling the opening or closing of the fire door body The opening and closing device is respectively electrically connected with the SF6 gas detector, the hydrogen sulfide detection sensor, the carbon monoxide sensor and the combustible gas sensor.

Further, it also includes a controller, the input end of the controller is respectively electrically connected with the SF6 gas detector, the hydrogen sulfide detection sensor, the carbon monoxide sensor and the combustible gas sensor, and the output end of the controller is electrically connected with the opening and closing device. connect.

Further, an oxygen detector is also included, the oxygen detector is electrically connected to the input end of the controller, and the oxygen detector is arranged in the monitoring area.

Further, it also includes a temperature and humidity sensor, the temperature and humidity sensor is electrically connected to the input end of the controller, and the temperature and humidity sensor is arranged in the detection area.

Further, an audible and visual alarm is also included, and the audible and visual alarm is electrically connected to the output end of the controller.

Further, a fingerprint and face recognition device is provided on the door body, and the fingerprint and face recognition device is connected to the input end of the controller.

Further, it also includes a fan, and the fan is electrically connected to the output end of the controller.

Further, when all the following conditions are met, the opening and closing device is turned on;

a) At the same time, the following gas content is qualified, the SF6 gas detector detects that the SF6 gas content in the monitoring area is qualified, the hydrogen sulfide detection sensor detects that the hydrogen sulfide gas content in the monitoring area is qualified, and the carbon monoxide sensor detects that the monitoring The carbon monoxide gas content in the area is qualified, the combustible gas sensor detects that the combustible gas content in the monitoring area is qualified, and the oxygen detector detects that the oxygen content in the monitoring area is qualified; the temperature and humidity sensor detects that the temperature and humidity in the monitoring area are qualified ;

b) The fingerprint and face recognition device recognizes successfully.

Further, the SF6 gas detector obtains the SF6 gas content in the monitoring area and sends the SF6 gas content to the controller, and the hydrogen sulfide detection sensor obtains the hydrogen sulfide gas content in the monitoring area and sends the SF6 gas content to the controller. The hydrogen sulfide gas content is sent to the controller, and the carbon monoxide sensor acquires the carbon monoxide gas content in the monitoring area and sends the carbon monoxide gas content to the controller, and the combustible gas sensor acquires the combustible gas content in the monitoring area. The gas content and the combustible gas content are sent to the controller; the oxygen detector obtains the oxygen content in the monitoring area and sends the oxygen content to the controller, and the temperature and humidity sensor obtains the oxygen content in the monitoring area. temperature and humidity and sending said temperature and humidity to the controller;

When any one of SF6 gas content, hydrogen sulfide gas content, carbon monoxide gas content, combustible gas content, oxygen content, and temperature and humidity in the monitoring area is unqualified, the controller controls the opening and closing device to close, and starts the fan to discharge At the same time, the controller activates the sound and light alarm to give an alarm.

Further, when any one of the following conditions is met, the opening and closing device is closed;

1) The SF6 gas detector detects that the SF6 gas content in the monitoring area is unqualified;

2) The hydrogen sulfide detection sensor detects that the hydrogen sulfide gas content in the monitoring area is unqualified;

3) The carbon monoxide sensor detects that the carbon monoxide gas content in the monitoring area is unqualified;

4) The combustible gas sensor detects that the combustible gas content in the monitoring area is unqualified;

5) The oxygen detector detects that the oxygen content in the monitoring area is unqualified;

6) The temperature and humidity sensor detects that the temperature and humidity in the monitoring area are unqualified.

Further, the monitoring area is an SF6 electrical equipment room.

The beneficial effects of the present invention are:

The invention simultaneously satisfies the multiple verifications of fingerprint face recognition and SF6, hydrogen sulfide gas content, carbon monoxide gas content, combustible gas content, oxygen content detection, etc., before the fire door can be opened to enter the equipment room, and the health and safety of the staff can be fully guaranteed. Personal safety.

Description of drawings

1 is a schematic diagram of the connection principle of Embodiment 1 of the present invention;

2 is a schematic diagram of the connection principle of Embodiment 2 of the present invention;

3 is a schematic diagram of the connection principle of Embodiment 3 of the present invention;

4 is a schematic diagram of the connection principle of Embodiment 4 of the present invention;

5 is a schematic diagram of a connection principle according to Embodiment 5 of the present invention;

FIG. 6 is a schematic diagram of a connection principle according to Embodiment 6 of the present invention.

Detailed ways

In order to further illustrate the technical means and effects adopted by the present invention to achieve the predetermined purpose of the invention, the specific embodiments, structures, features and effects of the present invention are described in detail below in conjunction with the accompanying drawings and preferred embodiments.

It should be noted that the terminology used herein is for the purpose of describing specific embodiments only, and is not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly dictates otherwise, the singular is intended to include the plural as well, furthermore, it is to be understood that when the terms "comprising" and/or "including" are used in this specification, it indicates that There are features, steps, operations, devices, components and/or combinations thereof.

Example 1

Referring to FIG. 1 , this embodiment provides a monitoring intelligent fire door, which includes a fire door body disposed on the monitoring area for sealing the monitoring area and SF6 gas disposed on the fire door door body Detector, hydrogen sulfide detection sensor, carbon monoxide sensor and combustible gas sensor, the SF6 gas detector, hydrogen sulfide detection sensor, carbon monoxide sensor and combustible gas sensor are located inside the monitoring area; An opening and closing device for controlling the opening or closing of the fire door body, the opening and closing devices are respectively electrically connected with the SF6 gas detector, the hydrogen sulfide detection sensor, the carbon monoxide sensor and the combustible gas sensor.

In this embodiment, the hydrogen sulfide detection sensor is an S+7H2S hydrogen sulfide electrochemical gas sensor.

The carbon monoxide sensor is a Hitachison 7CO-2000 electrochemical carbon monoxide sensor.

The combustible gas sensor is the combustible gas sensor NAP-100AD.

In this embodiment, when any of the following 1)-4) gas content is unqualified, the opening and closing device is closed.

1) The SF6 gas detector detects that the SF6 gas content in the monitoring area is unqualified;

2) The hydrogen sulfide detection sensor detects that the hydrogen sulfide gas content in the monitoring area is unqualified;

3) The carbon monoxide sensor detects that the carbon monoxide gas content in the monitoring area is unqualified;

4) The combustible gas sensor detects that the combustible gas content in the monitoring area is unqualified.

Example 2

Referring to FIG. 2 , this embodiment provides a monitoring intelligent fire door, which includes a fire door body disposed on the monitoring area for sealing the monitoring area and SF6 gas disposed on the fire door door body Detector, hydrogen sulfide detection sensor, carbon monoxide sensor and combustible gas sensor, the SF6 gas detector, hydrogen sulfide detection sensor, carbon monoxide sensor and combustible gas sensor are located inside the monitoring area; An opening and closing device for controlling the opening or closing of the fire door body, the opening and closing devices are respectively electrically connected with the SF6 gas detector, the hydrogen sulfide detection sensor, the carbon monoxide sensor and the combustible gas sensor.

This embodiment also includes a controller, the input ends of the controller are respectively electrically connected to the SF6 gas detector, the hydrogen sulfide detection sensor, the carbon monoxide sensor and the combustible gas sensor, and the output end of the controller is connected to the opening and closing device electrical connection.

The SF6 gas detector acquires the SF6 gas content in the monitoring area and sends the SF6 gas content to the controller, and the hydrogen sulfide detection sensor acquires the hydrogen sulfide gas content in the monitoring area and sends the SF6 gas content to the controller. The hydrogen gas content is sent to the controller, the carbon monoxide sensor obtains the carbon monoxide gas content in the monitoring area and sends the carbon monoxide gas content to the controller, the combustible gas sensor obtains the combustible gas content in the monitoring area and The combustible gas content is sent to a controller.

In this embodiment, when the content of SF6 gas, hydrogen sulfide gas, carbon monoxide gas and combustible gas in the monitoring area does not exceed the safety limit, the opening and closing device is normally opened. When either the gas content or the combustible gas content exceeds the safety limit, the controller drives the opening and closing device to close. In this way, the fire door is automatically locked, and the field operators cannot enter the equipment room to prevent accidents.

In this embodiment, the controller is a PLC controller or a single-chip microcomputer, and the safety limit of SF6 gas content, the safety limit of hydrogen sulfide gas content, the safety limit of carbon monoxide gas content, and the safety limit of flammable gas content are set in the controller. The safety limit is determined and whether the SF6 gas content, the hydrogen sulfide gas content, the carbon monoxide gas content and the combustible gas content in the monitoring area exceed the safety limit.

Example 3

Referring to FIG. 3 , the present embodiment provides a monitoring intelligent fire door, which includes a fire door body disposed on the monitoring area for sealing the monitoring area and SF6 gas disposed on the fire door door body Detector, hydrogen sulfide detection sensor, carbon monoxide sensor and combustible gas sensor, the SF6 gas detector, hydrogen sulfide detection sensor, carbon monoxide sensor and combustible gas sensor are located inside the monitoring area; An opening and closing device for controlling the opening or closing of the fire door body, the opening and closing devices are respectively electrically connected with the SF6 gas detector, the hydrogen sulfide detection sensor, the carbon monoxide sensor and the combustible gas sensor.

This embodiment also includes a controller, the input ends of the controller are respectively electrically connected to the SF6 gas detector, the hydrogen sulfide detection sensor, the carbon monoxide sensor and the combustible gas sensor, and the output end of the controller is connected to the opening and closing device electrical connection.

In this embodiment, the model of the SF6 gas detector is FIX550-SF6, Wanandi.

This embodiment also includes an oxygen detector, the oxygen detector is electrically connected to the input end of the controller, and the oxygen detector is arranged in the monitoring area.

In this embodiment, the model of the oxygen detector is FH100T Oceanwide Technology.

In the present embodiment, the controller is a PLC controller or a single-chip microcomputer, and the safety limits of SF6 gas content, hydrogen sulfide gas content, carbon monoxide gas content, combustible gas content and oxygen content are set in the controller, and the safety limits for judging the Check whether the SF6 gas content, hydrogen sulfide gas content, carbon monoxide gas content, combustible gas content and oxygen content in the monitoring area exceed the safety limit.

In this embodiment, the SF6 gas detector acquires the SF6 gas content in the monitoring area and sends the SF6 gas content to the controller, and the hydrogen sulfide detection sensor acquires the hydrogen sulfide gas content in the monitoring area and send the hydrogen sulfide gas content to the controller, the carbon monoxide sensor obtains the carbon monoxide gas content in the monitoring area and sends the carbon monoxide gas content to the controller, and the combustible gas sensor obtains the carbon monoxide gas content in the monitoring area the combustible gas content and send the combustible gas content to the controller. In the monitoring area, when the SF6 gas content, hydrogen sulfide gas content, carbon monoxide gas content and combustible gas content in the monitoring area do not exceed the safety limit and the oxygen content does not exceed the safety limit, the opening and closing device opens normally. When any one of the gas content, the hydrogen sulfide gas content, the carbon monoxide gas content, the combustible gas content and the oxygen content exceeds the safety limit, the controller drives the opening and closing device to close. In this way, the fire door is automatically locked, and the field operators cannot enter the equipment room to prevent accidents.

Example 4

Referring to FIG. 4 , this embodiment provides a monitoring intelligent fire door, which includes a fire door body disposed on the monitoring area for sealing the monitoring area and SF6 gas disposed on the fire door door body Detector, hydrogen sulfide detection sensor, carbon monoxide sensor and combustible gas sensor, the SF6 gas detector, hydrogen sulfide detection sensor, carbon monoxide sensor and combustible gas sensor are located inside the monitoring area; An opening and closing device for controlling the opening or closing of the fire door body, the opening and closing devices are respectively electrically connected with the SF6 gas detector, the hydrogen sulfide detection sensor, the carbon monoxide sensor and the combustible gas sensor.

In this embodiment, the hydrogen sulfide detection sensor is an S+7H2S hydrogen sulfide electrochemical gas sensor.

The carbon monoxide sensor is a Hitachison 7CO-2000 electrochemical carbon monoxide sensor.

The combustible gas sensor is the combustible gas sensor NAP-100AD.

This embodiment also includes a controller, the input ends of the controller are respectively electrically connected to the SF6 gas detector, the hydrogen sulfide detection sensor, the carbon monoxide sensor and the combustible gas sensor, and the output end of the controller is connected to the opening and closing device electrical connection.

In this embodiment, the model of the SF6 gas detector is a pump-suction four-in-one gas detector Zezhou400.

This embodiment also includes an oxygen detector, the oxygen detector is electrically connected to the input end of the controller, and the oxygen detector is arranged in the monitoring area.

In this embodiment, the model of the oxygen detector is GPro 500.

In the present embodiment, the controller is a PLC controller or a single-chip microcomputer, and the safety limits of SF6 gas content, hydrogen sulfide gas content, carbon monoxide gas content, combustible gas content and oxygen content are set in the controller, and the safety limits for judging the Check whether the SF6 gas content, hydrogen sulfide gas content, carbon monoxide gas content, combustible gas content and oxygen content in the monitoring area exceed the safety limit.

In this embodiment, the model of the controller is Mitsubishi PLC programmable controller FX5U-32MR/ES.

In this embodiment, a temperature and humidity sensor is further included, the temperature and humidity sensor is electrically connected to the input end of the controller, and the temperature and humidity sensor is arranged in the detection area.

In this embodiment, the SF6 gas detector monitors the SF6 gas content in the monitoring area in real time, the hydrogen sulfide detection sensor monitors the hydrogen sulfide gas content in the monitoring area in real time, and the carbon monoxide sensor monitors the carbon monoxide gas content in the monitoring area in real time. The gas sensor monitors the content of combustible gas in the monitoring area in real time, the oxygen detector monitors the oxygen content in the monitoring area in real time, and the temperature and humidity sensor monitors the temperature and humidity in the monitoring area in real time. When the SF6 gas content, oxygen content, temperature and humidity in the monitoring area do not exceed the safety limit, the opening and closing device is normally opened. When the SF6 gas content, hydrogen sulfide gas content, carbon monoxide gas content, combustible gas content, and oxygen content When any one of the temperature and humidity exceeds the safety limit, the controller drives the opening and closing device to close. In this way, the fire door is automatically locked, and the field operators cannot enter the equipment room to prevent accidents.

Example 5

Referring to FIG. 5 , this embodiment provides a monitoring intelligent fire door, which includes a fire door body disposed on the monitoring area for sealing the monitoring area and SF6 gas disposed on the fire door door body Detector, hydrogen sulfide detection sensor, carbon monoxide sensor and combustible gas sensor, the SF6 gas detector, hydrogen sulfide detection sensor, carbon monoxide sensor and combustible gas sensor are located inside the monitoring area; An opening and closing device for controlling the opening or closing of the fire door body, the opening and closing devices are respectively electrically connected with the SF6 gas detector, the hydrogen sulfide detection sensor, the carbon monoxide sensor and the combustible gas sensor.

This embodiment also includes a controller, the input ends of the controller are respectively electrically connected to the SF6 gas detector, the hydrogen sulfide detection sensor, the carbon monoxide sensor and the combustible gas sensor, and the output end of the controller is connected to the opening and closing device electrical connection.

This embodiment also includes an oxygen detector, the oxygen detector is electrically connected to the input end of the controller, and the oxygen detector is arranged in the monitoring area.

In the present embodiment, the controller is a PLC controller or a single-chip microcomputer, and the safety limits of SF6 gas content, hydrogen sulfide gas content, carbon monoxide gas content, combustible gas content and oxygen content are set in the controller, and the safety limits for judging the Check whether the SF6 gas content, hydrogen sulfide gas content, carbon monoxide gas content, combustible gas content and oxygen content in the monitoring area exceed the safety limit.

In this embodiment, the model of the controller is Mitsubishi PLC programmable controller FX3GA-60MR-CM 60MT.

In this embodiment, a temperature and humidity sensor is further included, the temperature and humidity sensor is electrically connected to the input end of the controller, and the temperature and humidity sensor is arranged in the detection area.

In this embodiment, the temperature and humidity sensor is a Rotronic temperature and humidity transmitter HL-NT3-D sensor.

This embodiment also includes a sound and light alarm, and the sound and light alarm is electrically connected to the output end of the controller.

In this embodiment, the model of the sound and light alarm is WMKY.

In this embodiment, the SF6 gas detector monitors the SF6 gas content in the monitoring area in real time, the hydrogen sulfide detection sensor monitors the hydrogen sulfide gas content in the monitoring area in real time, and the carbon monoxide sensor monitors the carbon monoxide gas content in the monitoring area in real time. The gas sensor monitors the content of combustible gas in the monitoring area in real time, the oxygen detector monitors the oxygen content in the monitoring area in real time, and the temperature and humidity sensor monitors the temperature and humidity in the monitoring area in real time. When any one of the SF6 gas content, hydrogen sulfide gas content, carbon monoxide gas content, combustible gas content, oxygen content and temperature and humidity in the monitoring area exceeds the safety limit, the controller drives the opening and closing device to close, and the controller Start the sound and light alarm, the sound and light alarm will send out sound and light alarm information. In this way, when an abnormal situation occurs, the fire door is automatically locked, and the field operators cannot enter the equipment room to prevent accidents.

Example 6

Referring to FIG. 6 , this embodiment provides a monitoring intelligent fire door, which includes a fire door body provided on the monitoring area for sealing the monitoring area and SF6 gas provided on the fire door door body Detector, hydrogen sulfide detection sensor, carbon monoxide sensor and combustible gas sensor, the SF6 gas detector, hydrogen sulfide detection sensor, carbon monoxide sensor and combustible gas sensor are located inside the monitoring area; An opening and closing device for controlling the opening or closing of the fire door body, the opening and closing devices are respectively electrically connected with the SF6 gas detector, the hydrogen sulfide detection sensor, the carbon monoxide sensor and the combustible gas sensor.

This embodiment also includes a controller, the input ends of the controller are respectively electrically connected to the SF6 gas detector, the hydrogen sulfide detection sensor, the carbon monoxide sensor and the combustible gas sensor, and the output end of the controller is connected to the opening and closing device electrical connection.

This embodiment also includes an oxygen detector, the oxygen detector is electrically connected to the input end of the controller, and the oxygen detector is arranged in the monitoring area.

In this embodiment, the model of the controller is 87715-9006. In this embodiment, the controller is a PLC controller or a single-chip microcomputer, and the SF6 gas content, the hydrogen sulfide gas content, and the carbon monoxide content are set in the controller. The safety limit of gas content, combustible gas content and oxygen content is determined and whether the SF6 gas content, hydrogen sulfide gas content, carbon monoxide gas content, combustible gas content and oxygen content in the monitoring area exceed the safety limit.

In this embodiment, a temperature and humidity sensor is further included, the temperature and humidity sensor is electrically connected to the input end of the controller, and the temperature and humidity sensor is arranged in the detection area.

In this embodiment, the temperature and humidity sensor is a temperature and humidity sensor GXHT30 DFN8.

This embodiment also includes an acousto-optic alarm, which is electrically connected to the output end of the controller.

In this embodiment, the model of the sound and light alarm is LBZD.

To sum up, in this implementation, the input terminals of the controller are respectively connected with SF6 gas detector, hydrogen sulfide detection sensor, carbon monoxide sensor, combustible gas sensor, oxygen detector, temperature and humidity sensor and fingerprint face recognition device. The output ends are respectively connected with the sound and light alarm, the fan and the opening and closing device.

The door body is provided with a fingerprint and face recognition device, and the fingerprint and face recognition device is connected with the input end of the controller.

It also includes a fan, the fan is electrically connected with the output end of the controller.

When all the following conditions are met, the opening and closing device is turned on;

a) At the same time, the following gas content is qualified, the SF6 gas detector detects that the SF6 gas content in the monitoring area is qualified, the hydrogen sulfide detection sensor detects that the hydrogen sulfide gas content in the monitoring area is qualified, and the carbon monoxide sensor detects that the monitoring The carbon monoxide gas content in the area is qualified, the combustible gas sensor detects that the combustible gas content in the monitoring area is qualified, and the oxygen detector detects that the oxygen content in the monitoring area is qualified; the temperature and humidity sensor detects that the temperature and humidity in the monitoring area are qualified ;

b) The fingerprint and face recognition device recognizes successfully.

The SF6 gas detector acquires the SF6 gas content in the monitoring area and sends the SF6 gas content to the controller, and the hydrogen sulfide detection sensor acquires the hydrogen sulfide gas content in the monitoring area and sends the SF6 gas content to the controller. The hydrogen gas content is sent to the controller, the carbon monoxide sensor obtains the carbon monoxide gas content in the monitoring area and sends the carbon monoxide gas content to the controller, the combustible gas sensor obtains the combustible gas content in the monitoring area and Send the combustible gas content to the controller; the oxygen detector obtains the oxygen content in the monitoring area and sends the oxygen content to the controller, and the temperature and humidity sensor obtains the temperature and humidity in the monitoring area and send the temperature and humidity to the controller;

When any one of SF6 gas content, hydrogen sulfide gas content, carbon monoxide gas content, combustible gas content, oxygen content, and temperature and humidity in the monitoring area is unqualified, the controller controls the opening and closing device to close, and starts the fan to discharge At the same time, the controller activates the sound and light alarm to give an alarm.

When any of the following conditions are met, the opening and closing device is closed;

1) The SF6 gas detector detects that the SF6 gas content in the monitoring area is unqualified;

2) The hydrogen sulfide detection sensor detects that the hydrogen sulfide gas content in the monitoring area is unqualified;

3) The carbon monoxide sensor detects that the carbon monoxide gas content in the monitoring area is unqualified;

4) The combustible gas sensor detects that the combustible gas content in the monitoring area is unqualified;

5) The oxygen detector detects that the oxygen content in the monitoring area is unqualified;

6) The temperature and humidity sensor detects that the temperature and humidity in the monitoring area are unqualified.

The monitoring area is the SF6 electrical equipment room.

The invention combines the gas leakage monitoring device with the fire door, and realizes the linkage function of the two.

The present invention simultaneously has the functions and features of fingerprint face recognition and common gas leakage monitoring:

1. Fingerprint face recognition function and features: As a verification method for opening fire doors, it is used to confirm the identity of the person opening the door to prevent unqualified personnel from entering the equipment room by mistake.

2. Functions and characteristics of gas leakage monitoring: real-time and quantitative detection of SF6, hydrogen sulfide, carbon monoxide, combustible gas, oxygen gas concentration; SF6 gas, hydrogen sulfide, carbon monoxide, and combustible gas concentration exceeding the limit alarm; Gas, hydrogen sulfide, carbon monoxide, combustible gas, oxygen content, temperature and humidity values, alarm status and other parameters are transmitted to the integrated automatic system in real time, truly realizing the unattended function; the system can provide alarm signals at the same time; a variety of fan control methods, The fan has various starting methods such as timed self-start, forced start, personnel induction start, etc., which can more effectively ensure personal safety; high reliability, high stability, and sensor life is more than 10 years.

The invention simultaneously satisfies the multiple verifications of fingerprint face recognition and SF6, hydrogen sulfide, carbon monoxide, combustible gas, oxygen content detection, etc., before the fire door can be opened to enter the equipment room, and the health and personal safety of the staff can be fully guaranteed.

The input end of the controller of the present invention can also be provided with a public interface for connecting to other types of sensors, and function upgrades can be implemented on site after more sensors are connected.

The invention can monitor toxic and harmful gases in limited space, and realize protection through intelligent fire doors.

In the present invention, whether the oxygen content, temperature and humidity, carbon monoxide gas content, combustible gas content, hydrogen sulfide gas content, combustible gas content, etc. are qualified, can be defined according to relevant national standards.

At present, the technical solution of the present invention has undergone a pilot test, that is, a small-scale experiment of the product before mass production; after the pilot test is completed, a user usage survey has been carried out in a small area, and the survey results show that the user satisfaction is high; Now it has started to prepare for the formal production of the product for industrialization (including intellectual property risk early warning research).

The above descriptions are only preferred embodiments of the present invention, and do not limit the present invention in any form. Although the present invention has been disclosed above with preferred embodiments, it is not intended to limit the present invention. Anyone skilled in the art , without departing from the scope of the technical solution of the present invention, when the technical content disclosed above can be used to make some changes or modifications to equivalent embodiments of equivalent changes, as long as it does not depart from the technical solution content of the present invention, according to the technical solution of the present invention Substantially any brief modifications, equivalent changes and modifications made to the above embodiments still fall within the scope of the technical solutions of the present invention.

Claims (10)

1. The monitoring intelligent fireproof door is characterized by comprising a fireproof door body arranged on a monitoring area and used for closing the monitoring area, and an SF6 gas detector, a hydrogen sulfide detection sensor, a carbon monoxide sensor and a combustible gas sensor which are arranged on the fireproof door body, wherein the SF6 gas detector, the hydrogen sulfide detection sensor, the carbon monoxide sensor and the combustible gas sensor are positioned in the monitoring area; be provided with the device that opens and shuts that is used for controlling to prevent that the fire door body opens or closes on the fire door body, the device that opens and shuts is connected with SF6 gas detection appearance, hydrogen sulfide detection sensor, carbon monoxide sensor and combustible gas sensor electricity respectively.

2. The SF6 gas leakage monitoring intelligent fireproof door of claim 1, further comprising a controller, wherein an input end of the controller is electrically connected with the SF6 gas detector, the hydrogen sulfide detection sensor, the carbon monoxide sensor and the combustible gas sensor respectively, and an output end of the controller is electrically connected with the opening and closing device.

3. The SF6 gas leakage monitoring intelligent fire door of claim 2, further comprising an oxygen detector electrically connected to an input of the controller, the oxygen detector disposed within the monitoring area.

4. The SF6 gas leakage monitoring intelligent fireproof door of claim 3, further comprising a temperature and humidity sensor electrically connected to an input of the controller, the temperature and humidity sensor being disposed in the detection area.

5. The SF6 gas leakage monitoring fire rated door as claimed in claim 4, further comprising an audible and visual alarm electrically connected to an output of said controller;

the door body is provided with a fingerprint face recognition device, and the fingerprint face recognition device is connected with the input end of the controller.

6. The SF6 gas leakage monitoring fire rated door of claim 5, further comprising a fan electrically connected to an output of the controller.

7. The SF6 gas leakage monitoring intelligent fire door of claim 6, wherein the opening and closing device is opened when all of the following conditions are met;

a) meanwhile, the following gas contents are qualified, an SF6 gas detector detects that the SF6 gas content in the monitoring area is qualified, a hydrogen sulfide detection sensor detects that the hydrogen sulfide gas content in the monitoring area is qualified, a carbon monoxide sensor detects that the carbon monoxide gas content in the monitoring area is qualified, a combustible gas sensor detects that the combustible gas content in the monitoring area is qualified, and an oxygen detector detects that the oxygen content in the monitoring area is qualified; the temperature and humidity sensor detects that the temperature and the humidity in the monitoring area are qualified;

b) the fingerprint face recognition device successfully recognizes.

8. The SF6 gas leakage monitoring intelligent fireproof door of claim 6, wherein the SF6 gas detector obtains SF6 gas content in the monitoring area and sends the SF6 gas content to a controller, the hydrogen sulfide detection sensor obtains hydrogen sulfide gas content in the monitoring area and sends the hydrogen sulfide gas content to the controller, the carbon monoxide sensor obtains carbon monoxide gas content in the monitoring area and sends the carbon monoxide gas content to the controller, and the combustible gas sensor obtains combustible gas content in the monitoring area and sends the combustible gas content to the controller; the oxygen detector acquires the oxygen content in the monitoring area and sends the oxygen content to the controller, and the temperature and humidity sensor acquires the temperature and humidity in the monitoring area and sends the temperature and humidity to the controller;

when any one of SF6 gas content, hydrogen sulfide gas content, carbon monoxide gas content combustible gas content, oxygen content and temperature and humidity in the monitoring area is unqualified, the controller controls the opening and closing device to be closed, the fan is started to exhaust air, and the controller starts the audible and visual alarm to give an alarm.

9. The intelligent fireproof door for monitoring as claimed in claim 6, wherein the opening and closing device is closed when any one of the following conditions is met;

1) an SF6 gas detector detects that the content of SF6 gas in the monitoring area is unqualified;

2) a hydrogen sulfide detection sensor detects that the content of hydrogen sulfide gas in the monitoring area is unqualified;

3) detecting that the content of the carbon monoxide gas in the monitoring area is unqualified by a carbon monoxide sensor;

4) the combustible gas sensor detects that the content of the combustible gas in the monitoring area is unqualified;

5) the oxygen detector detects that the oxygen content in the monitoring area is unqualified;

6) and the temperature and humidity sensor detects that the temperature and humidity in the monitoring area are unqualified.

10. The monitoring smart fire door as recited in claim 1, wherein said monitoring area is an SF6 electrical equipment room.

Images