Toxic and harmful gas monitoring and protecting system

Abstract

The invention discloses a poisonous and harmful gas monitoring and protection system, a protection vehicle is a movable vehicle, a vehicle-mounted gas detection device is used for detecting poisonous and harmful gas inside and outside the protection vehicle in real time, and a movable gas monitoring device comprises a movable support and a wireless gas sensor connected to the movable support. The wireless gas detection sensor is used for monitoring a poisonous and harmful gas dangerous area and wirelessly transmitting detection data to the control device, the control device controls the alarm station to send out an alarm signal after the obtained detection data is higher than a threshold value, and the vehicle-mounted protection device performs gas supply operation through the vehicle-mounted gas supply device and is used for providing protection for a user. By effectively integrating gas detection, accurate alarm, safety, portability and movement, toxic gas can be rapidly detected, personnel can be rapidly and effectively informed of protection or emergency evacuation under the protection of the protection device, and the purposes of emergency rescue, transient construction and the like are achieved.

Description

Technical Field

[0001] The invention relates to the technical field of toxic and harmful gas detection, and in particular to a toxic and harmful gas monitoring and protection system. Background Art

[0002] Toxic and harmful gases such as hydrogen sulfide are often present at oil and gas production sites and in the production processes of chemical companies, which can cause poisoning, fire, explosion and other hazards. With the continuous increase in the demand for on-site production safety, it is imperative to improve the efficiency, accuracy and precision of gas detection and take targeted and effective alarm measures to ensure the safety of on-site personnel.

[0003] Most of the existing toxic and harmful gas detection sensors and alarm stations such as hydrogen sulfide, sulfur dioxide, carbon monoxide, and combustible gases are fixed in a certain location for continuous detection and alarm. After the toxic and harmful gas leaks, the sensor can only monitor the hydrogen sulfide leakage concentration within a fixed area, and the sound and light alarm station can only alarm within a certain area. When a large-scale toxic and harmful gas leak occurs, since the sensors and alarm stations are fixed and large in size, the mobility and flexibility of the mobile wireless detection sensors and alarm stations are greatly restricted, resulting in the inability of sensors and alarm stations to move quickly according to demand, which is prone to personal injury and death due to the failure to accurately detect the leakage concentration of toxic and harmful gases within the leakage location, timely alarm, or rapid evacuation of the high-concentration toxic and harmful gas range.

[0004] In addition, fixed gas detection equipment has blind spots, which makes it inconvenient to install and control during the excavation and renovation of swamps, ditches, tunnels, etc. Wireless gas detection equipment and alarm station brackets are limited by size, and the equipment brackets are not portable and heavy, which makes them difficult to move quickly. They cannot move accurately in toxic and hazardous areas and give timely alarms. When the alarm station sounds an alarm, personnel cannot get close to the mobile wireless gas detection equipment and alarm station, and cannot further accurately locate the gas leakage area and gas leakage concentration, and thus cannot prevent the danger from further expanding. Summary of the invention

[0005] The purpose of the present invention is to provide a toxic and harmful gas monitoring and protection system, which solves the problem of quickly moving the toxic and harmful gas detection sensor so as to accurately detect the leakage point and leakage concentration.

[0006] To solve the above technical problems, an embodiment of the present invention provides a toxic and harmful gas monitoring and protection system, including a protection vehicle and a mobile gas monitoring device, a vehicle-mounted protection device, an alarm station, a control device and a vehicle-mounted gas supply device arranged inside and outside the protection vehicle. The protection vehicle is a movable vehicle. The vehicle-mounted gas detection device is used to detect toxic and harmful gases inside and outside the protection vehicle in real time. The mobile gas monitoring device includes a movable bracket and a wireless gas sensor connected to the movable bracket. The wireless gas detection sensor is used to monitor the toxic and harmful gas hazardous area and wirelessly transmit the detection data to the control device. After the obtained detection data is higher than the threshold, the control device controls the alarm station to send an alarm signal. The vehicle-mounted protection device performs gas supply operation through the vehicle-mounted gas supply device to provide protection for users.

[0007] It also includes a roller arranged at the bottom of the movable bracket, and the movable bracket includes a sensor bracket, a detachable alarm station bracket and a convenient mobile cart.

[0008] Among them, the vehicle-mounted protection device includes a vehicle-mounted gas supply unit connected to the protection vehicle, a low-pressure gas supply pipeline and an air supply mask. One end of the low-pressure gas supply pipeline is connected to the low-pressure air bag of the vehicle-mounted gas supply unit by a first quick connector, and the other end is connected to the air supply valve of the air supply mask by a second quick connector.

[0009] Wherein, the low-pressure gas supply pipeline includes a 50-meter-level low-pressure gas supply pipeline and a quick wire-paying reel, and the 50-meter-level low-pressure gas supply pipeline is arranged on the quick wire-paying reel.

[0010] Among them, the vehicle-mounted gas supply device includes a gas cylinder group, a pressure regulating panel, a pressure monitoring sensor, a pressure gauge, a valve and an air circuit. Among them, by closing the air filling valve and opening the gas cylinder valve, low-pressure air is output to the low-pressure air bag through the low-pressure regulating valve, and the air supply valve is connected to the low-pressure air bag through a quick connector. After the air supply valve is connected to the mask, it automatically starts to supply air to the user.

[0011] Wherein, the control device is an explosion-proof flat-panel control device, which is arranged on the center console of the protection vehicle, biased towards the co-pilot position.

[0012] Among them, the vehicle-mounted protection equipment includes an air-inflating air compressor installed in the protection vehicle, and the air-inflating air compressor is used to inflate the gas cylinder alone or to inflate the gas supply system together.

[0013] It also includes a first mounting bracket, a first mountable battery box, a first wireless H2S sensor, a first combustible gas sensor, and a wireless sensor bracket, a second mountable battery box, a second wireless H2S sensor, and a second combustible gas sensor arranged on the front bumper of the protection vehicle.

[0014] Among them, it also includes a wireless communication module arranged in the protection vehicle, and the wireless communication module includes one of a 4G communication module and a 5G communication module.

[0015] Wherein, the protection vehicle is an electric protection vehicle or an internal combustion engine vehicle.

[0016] Compared with the prior art, the toxic and harmful gas monitoring and protection system provided in the embodiment of the present invention has the following advantages:

[0017] The toxic and harmful gas monitoring and protection system provided by the embodiment of the present invention comprises a protective vehicle which is a movable vehicle, an on-board gas detection device which is used for real-time detection of toxic and harmful gases inside and outside the protective vehicle, a mobile gas monitoring device which comprises a movable bracket and a wireless gas sensor connected to the movable bracket, the wireless gas detection sensor which is used for monitoring hazardous areas of toxic and harmful gases and wirelessly transmitting the detection data to a control device, and the control device which controls an alarm station to send out an alarm signal after the obtained detection data exceeds a threshold value, and an on-board protective device which performs gas supply operation through an on-board gas supply device to provide protection for users, and realizes rapid detection of toxic gases by effectively integrating gas detection, precise alarm and safe and portable mobility, and quickly and effectively notifies personnel to take protection measures or to evacuate urgently under the protection of the protective device, thereby realizing purposes of emergency rescue, short-term construction and the like. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 A schematic diagram of the structure of a clamping device in an embodiment of the toxic and harmful gas monitoring and protection system provided by the present invention;

[0020] Figure 2 A schematic diagram of the structure of a vehicle-mounted gas supply device in one embodiment of the toxic and harmful gas monitoring and protection system provided by the present invention;

[0021] Figure 3A schematic diagram of the movable support structure in one embodiment of the toxic and harmful gas monitoring and protection system provided by the present invention;

[0022] Among them, 10-protection vehicle, 20-mobile gas monitoring device, 40-alarm station, 50-control device, 31-low-pressure gas bag, 60-vehicle gas supply device, 61-gas cylinder group, 62-pressure regulating panel, 63-quick connector, 71-first mounting bracket, 72-first mountable battery box, 21-movable bracket, 24-roller, 22-sensor bracket, 23-detachable alarm station bracket. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] Please refer to Figure 1-3 , Figure 1 A schematic diagram of the structure of a clamping device in an embodiment of the toxic and harmful gas monitoring and protection system provided by the present invention; Figure 2 A schematic diagram of the structure of a vehicle-mounted gas supply device in one embodiment of the toxic and harmful gas monitoring and protection system provided by the present invention; Figure 3 A schematic diagram of the movable bracket structure in one embodiment of the toxic and harmful gas monitoring and protection system provided by the present invention.

[0025] In a specific embodiment, the toxic and harmful gas monitoring and protection system includes a protection vehicle 10 and a mobile gas monitoring device 20, a vehicle-mounted protection device, an alarm station 40, a control device 50 and a vehicle-mounted gas supply device 60 arranged inside and outside the protection vehicle 10. The protection vehicle 10 is a movable vehicle. The vehicle-mounted gas detection device is used to detect toxic and harmful gases inside and outside the protection vehicle 10 in real time. The mobile gas monitoring device 20 includes a movable bracket 21 and a wireless gas sensor connected to the movable bracket 21. The wireless gas detection sensor is used to monitor the toxic and harmful gas hazardous area and wirelessly transmit the detection data to the control device 50. After the obtained detection data is higher than the threshold, the control device 50 controls the alarm station 40 to send an alarm signal. The vehicle-mounted protection device performs gas supply operation through the vehicle-mounted gas supply device 60 to provide protection for users.

[0026] The protection vehicle 10 is a movable vehicle. The on-board gas detection device is used to detect toxic and harmful gases inside and outside the protection vehicle 10 in real time. The mobile gas monitoring device 20 includes a movable bracket and a wireless gas sensor connected to the movable bracket. The wireless gas detection sensor is used to monitor the dangerous area of ​​toxic and harmful gases and wirelessly transmit the detection data to the control device 50. After the obtained detection data exceeds the threshold, the control device 50 controls the alarm station 40 to send an alarm signal. The on-board protection device performs gas supply operation through the on-board gas supply device 60 to provide protection for users. By effectively integrating gas detection, accurate alarm and safe and portable mobility, rapid detection of toxic gases can be achieved. Under the protection of the protection device, personnel can be quickly and effectively notified to take protection or evacuate urgently, thereby achieving the purposes of emergency rescue, short-term construction, etc.

[0027] In order to further facilitate rapid gas detection at the gas leakage location, thereby improving detection efficiency and facilitating subsequent detection, in one embodiment, the toxic and harmful gas monitoring and protection system also includes a roller 24 arranged at the bottom of the movable bracket 21, and the movable bracket includes a sensor bracket 22, a detachable alarm station bracket 23 and a convenient mobile cart.

[0028] By setting the movable bracket 21, the sensor bracket 22, and the detachable alarm station bracket 23, the setting of the sensor and the alarm equipment in the alarm station 40 can be realized, so that after appearing at the accident scene, it is convenient to quickly appear at the gas leakage location through the movable bracket, avoiding the poor accuracy and reliability of the detected gas concentration due to the volume relationship of the protection vehicle 10 not appearing at the gas source. By directly appearing at the gas source, the concentration of the gas can be detected as efficiently and accurately as possible, which is convenient for the subsequent follow-up command center to carry out maintenance and accident handling, and improves the handling efficiency.

[0029] In the present application, the vehicle-mounted protection device can be used to quickly rescue people at the scene of the accident and improve the rescue speed. The specific structure of the vehicle-mounted protection device is not limited. In one embodiment, the vehicle-mounted protection device includes a vehicle-mounted gas supply unit connected to the protection vehicle 10, a low-pressure gas supply pipeline and an air supply mask. One end of the low-pressure gas supply pipeline is connected to the low-pressure air bag 31 of the vehicle-mounted gas supply unit using a first quick connector 63, and the other end is connected to the air supply valve of the air supply mask using a second quick connector 63.

[0030] The gas supply operation is achieved through the vehicle-mounted gas supply unit, and the gas supply operation can be achieved at positions of different distances through the low-pressure gas supply pipeline. The gas supply mask can enable people at the accident site to breathe freely and receive first aid at the first time, thereby improving the rescue efficiency.

[0031] The present application does not limit the length and specific structure of the low-pressure gas supply pipeline. In one embodiment, the low-pressure gas supply pipeline includes a 50-meter low-pressure gas supply pipeline and a quick pay-off reel, and the 50-meter low-pressure gas supply pipeline is arranged on the quick pay-off reel.

[0032] By arranging the 50-meter-level low-pressure gas supply pipeline on the quick wire-releasing drum, the low-pressure gas supply pipeline can be quickly arranged, thereby improving the rescue efficiency and reducing the rescue difficulty.

[0033] The present application does not impose any limitation on the length and quantity of the low-pressure gas supply pipeline, and does not impose any limitation on the structure of the quick pay-off reel.

[0034] In the present application, a vehicle-mounted gas supply device 60 is provided to provide gas to the rescued person, and the specific structure is not limited. In one embodiment, the vehicle-mounted gas supply device 60 includes a gas cylinder group 61, a pressure regulating panel 62, a pressure monitoring sensor, a pressure gauge, a valve and an air circuit, wherein, by closing the air filling valve and opening the gas cylinder valve, low-pressure air is output to the low-pressure air bag 31 through the low-pressure regulating valve, and the air supply valve is connected to the low-pressure air bag 31 through the quick connector 63. After the air supply valve is connected to the mask, it automatically starts to supply air to the user.

[0035] The gas is stored by the gas cylinder group 61, the pressure is detected and outputted by the pressure monitoring sensor and the pressure gauge, and the gas is outputted by the gas supply mask. The gas is easy to use, has a simple structure, and has a simple connection structure.

[0036] The present application includes but is not limited to the above-mentioned vehicle-mounted gas supply device 60 .

[0037] In the present application, a control device 50 is used to obtain and process data and output control commands. The structure of the control device 50 is not limited. In one embodiment, the control device 50 is an explosion-proof flat-panel control device 50, which is arranged on the center console of the protected vehicle 10, biased towards the co-pilot position.

[0038] The present application includes but is not limited to the explosion-proof flat panel control device 50, and there is no limitation on its installation position. The use of the explosion-proof flat panel control device 50 can improve its reliability in use.

[0039] In order to further improve the rescue capability, in one embodiment, the vehicle-mounted protection equipment includes an air compressor installed in the protection vehicle 10, and the air compressor is used to inflate the gas cylinder alone or to inflate the gas supply system together.

[0040] The inflation air compressor provides reliability and continuity of rescue.

[0041] The structure of the inflation air compressor is not limited in this application.

[0042] In order to further improve the rescue efficiency, in one embodiment, the toxic and harmful gas monitoring and protection system also includes a first mounting bracket 71 arranged on the front bumper of the protection vehicle 10, a first mountable battery box 72, a first wireless H2S sensor, a first combustible gas sensor, and a wireless sensor bracket arranged at the rear of the protection vehicle 10, a second mountable battery box, a second wireless H2S sensor, and a second combustible gas sensor.

[0043] By arranging sensors and brackets on the front bumper and the rear of the protection vehicle 10, rescue equipment can be conveniently provided, space can be increased for the protection vehicle, and power can be provided for other external equipment.

[0044] The present application includes but is not limited to the above-mentioned sensors and battery boxes.

[0045] In order to further improve the rescue efficiency and the information collection of the command center, in one embodiment, the toxic and harmful gas monitoring and protection system also includes a wireless communication module arranged in the protection vehicle 10, and the wireless communication module includes one of a 4G communication module and a 5G communication module.

[0046] Through 4G communication modules and 5G communication modules, data can be uploaded quickly and control instructions can be obtained, thereby improving rescue efficiency.

[0047] The present application includes but is not limited to the above-mentioned wireless communication module.

[0048] Regarding the type of the protection vehicle 10 in the present application, the protection vehicle 10 is an electric protection vehicle 10 or an internal combustion engine vehicle.

[0049] If the electric rescue vehicle 10 is used, the oxygen on the scene will not be used, and exhaust gas will not be emitted, which reduces the difficulty of rescue at the accident scene. In addition, the electric drive can provide electricity for the scene, thereby improving the efficiency of rescue.

[0050] The use of internal combustion engine vehicles has lower requirements for the accident scene and does not require charging, etc.

[0051] In one embodiment, the toxic and harmful gas monitoring and protection system includes a mobile gas monitoring device 20, a vehicle-mounted protection device, an alarm station 40 and a control device 50. After application, it can enhance the detection accuracy and early warning processing capabilities of toxic and harmful gases such as hydrogen sulfide, thereby promoting the purpose of production safety.

[0052] The mobile gas monitoring device 20 includes a movable bracket and a wireless gas sensor connected to the movable bracket. The wireless gas detection sensor can realize the monitoring of the hazardous area of ​​toxic and harmful gases, and can wirelessly transmit the detection data to the control device 50 to provide data for on-site rescue command. The vehicle-mounted protection device has a protection vehicle 10 and a vehicle-mounted gas supply unit, a low-pressure gas supply pipeline, and a gas supply mask connected to the protection vehicle 10. One end of the low-pressure gas supply pipeline is connected to the low-pressure gas bag 31 of the vehicle-mounted gas supply unit by a quick connector 63, and the other end is connected to the gas supply valve of the gas supply mask by a quick connector 63. When encountering a narrow area or confined space that the vehicle cannot enter, the low-pressure gas supply pipeline allows the operator to enter the dangerous area.

[0053] When a toxic or harmful gas leak is detected, the mobile gas detection device detects the toxic or harmful gas, and the control device 50 controls the alarm station 40 to send out an audible and visual alarm to remind personnel to perform emergency rescue or evacuate the dangerous area. Rescue personnel quickly reach a leakage point by riding a protective vehicle 10, and enter the dangerous area wearing a gas supply mask connected to the vehicle-mounted gas supply unit through a low-pressure gas supply pipeline, and move the movable bracket equipped with a wireless gas sensor to a suitable position to accurately locate the gas leakage location area and gas leakage concentration, thereby better preventing the danger from further expanding.

[0054] The mobile gas monitoring device 20 may also be placed on the protection vehicle 10 , and the protection vehicle 10 can be used to quickly deploy the mobile gas monitoring device 20 to a certain area for detection.

[0055] The mobile bracket consists of three parts: the sensor bracket, the detachable alarm station 40 bracket and the convenient mobile cart.

[0056] The alarm system of the alarm station 40 has functions such as sound and light alarm and automatic alarm.

[0057] Key points for using the movable bracket: After entering the work area, ensure that the wireless gas sensor and the alarm station 40 are completely fixed on the bracket back plate and that the fixing screws are tightened. After confirming that the movable bracket is fixed, fix the cart with a ground anchor to ensure that the center of gravity is at the center of the bracket. Adjust the placement of the alarm station 40 bracket according to the placement height of the alarm station 40. The movable bracket is mainly used to fix the sensor and the alarm station 40 in the gas monitoring and protection system of the petrochemical industry.

[0058] When gas leaks, the sensor at a fixed location can only detect the target gas concentration, transmit the electrical signal to the control device 50 through the signal line for processing, and then transmit the alarm signal to the alarm station 40 in the fixed area. The sensor bracket and the alarm station 40 bracket are set on the movable bracket at the same time, which can integrate gas detection with sound and light alarm, facilitate the cooperation of the mobile wireless gas sensor and the alarm station 40, and realize accurate movement in toxic and harmful areas and timely alarm.

[0059] The movable bracket is equipped with rollers, which can realize the quick and convenient movement of the overall equipment bracket, and can safely and quickly move the movable bracket to the area to be further inspected and alarm in time.

[0060] The on-board gas supply unit is installed in the trunk of the protection vehicle 10, and the gas cylinder is installed in the box body, which can be effectively protected; each gas cylinder is fixed with a buckle, which is easy to disassemble and install, and the gas cylinder will not move horizontally or vertically in the box body; the gas supply valve is arranged at the passenger position. A hook is set next to each seat to mount the mask and the respirator gas supply valve. The reserved length of the passenger gas supply pipeline is: it is convenient to wear a mask, and the passengers can maintain sufficient freedom in their respective seats.

[0061] The vehicle-mounted gas supply unit is composed of a gas cylinder group 61, a pressure regulating panel 62, a gas supply mask, a pressure monitoring sensor, a pressure gauge, a valve and a gas circuit.

[0062] The working principle of gas supply is as follows:

[0063] Close the air filling valve, open the gas cylinder valve, output low-pressure air to the low-pressure air bag 31 through the low-pressure regulating valve, and connect the air supply valve to the low-pressure air bag 31 through the quick connector 63. When the air supply valve is connected to the mask, it automatically starts to supply air to the user.

[0064] The low-pressure gas supply pipeline can be set to a 50-meter low-pressure gas supply pipeline. The 50-meter low-pressure gas supply pipeline has a quick pay-off reel to facilitate quick pay-off and reel-off.

[0065] The protection vehicle 10 is also provided with an on-board gas detection unit, and an absorbable sound and light alarm (12V) is installed on the roof. A mounting bracket is installed on the front bumper, which can mount a battery box, a wireless H2S sensor, and a total of 2 combustible gas sensors. A wireless sensor bracket is installed at the rear of the vehicle, which can mount a battery box and 2 wireless sensors. In conjunction with the wireless gas detection sensor outside the vehicle, mobile monitoring inside and outside the vehicle can be realized. The control device 50 is an explosion-proof flat panel, which can be detachably installed on the co-pilot position of the center console. The on-board protection equipment also includes an inflatable air compressor arranged on the protection vehicle 10, which can inflate the gas cylinder separately and can jointly inflate the gas supply system.

[0066] By effectively integrating gas detection, accurate alarm and safe portable movement, toxic gas can be quickly detected. Under the protection of protective devices, personnel can quickly move sensors according to the location of gas leakage and implement accurate change alarms according to the personnel's work area, so as to quickly and effectively notify personnel to take protective measures or evacuate urgently, and achieve emergency rescue, short-term construction and other purposes. It solves the problem of gas monitoring in unknown dangerous environments and accurately and conveniently deploying heavy wireless gas detection sensors and alarm stations 40.

[0067] To sum up, in the toxic and harmful gas monitoring and protection system provided by the embodiment of the present invention, the protection vehicle is a movable vehicle, the on-board gas detection device is used to detect toxic and harmful gases inside and outside the protection vehicle in real time, the mobile gas monitoring device includes a movable bracket and a wireless gas sensor connected to the movable bracket, the wireless gas detection sensor is used to monitor the toxic and harmful gas danger zone and wirelessly transmit the detection data to the control device, after the obtained detection data exceeds the threshold, the control device controls the alarm station to send an alarm signal, the on-board protection device performs gas supply operation through the on-board gas supply device, and is used to provide protection for users, by effectively integrating gas detection, accurate alarm and safe and portable mobility, rapid detection of toxic gases can be achieved, and under the protection of the protection device, personnel can be quickly and effectively notified to take protection or evacuate urgently, so as to achieve the purposes of emergency rescue, short-term construction, etc.

[0068] The toxic and harmful gas monitoring and protection system provided by the present invention is introduced in detail above. Specific examples are used in this article to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the method of the present invention and its core idea. It should be pointed out that for ordinary technicians in this technical field, without departing from the principle of the present invention, several improvements and modifications can be made to the present invention, and these improvements and modifications also fall within the scope of protection of the claims of the present invention.

Claims

1. A toxic and harmful gas monitoring and protection system, characterized in that: It includes a protection vehicle and a mobile gas monitoring device, a vehicle-mounted protection device, an alarm station, a control device and a vehicle-mounted gas supply device arranged inside and outside the protection vehicle. The protection vehicle is a movable vehicle. The vehicle-mounted gas detection device is used to detect toxic and harmful gases inside and outside the protection vehicle in real time. The mobile gas monitoring device includes a movable bracket and a wireless gas sensor connected to the movable bracket. The wireless gas detection sensor is used to monitor the hazardous area of ​​toxic and harmful gases and wirelessly transmit the detection data to the control device. After the obtained detection data is higher than the threshold, the control device controls the alarm station to send an alarm signal. The vehicle-mounted protection device performs gas supply operation through the vehicle-mounted gas supply device to provide protection for users.

2. The toxic and harmful gas monitoring and protection system according to claim 1, characterized in that: It also includes a roller arranged at the bottom of the movable bracket, and the movable bracket includes a sensor bracket, a detachable alarm station bracket and a convenient mobile cart.

3. The toxic and harmful gas monitoring and protection system according to claim 1, characterized in that: The vehicle-mounted protection device includes a vehicle-mounted gas supply unit connected to the protection vehicle, a low-pressure gas supply pipeline and an air supply mask. One end of the low-pressure gas supply pipeline is connected to the low-pressure air bag of the vehicle-mounted gas supply unit by a first quick connector, and the other end is connected to the air supply valve of the air supply mask by a second quick connector.

4. The toxic and harmful gas monitoring and protection system as claimed in claim 3, characterized in that: The low-pressure gas supply pipeline comprises a 50-meter-level low-pressure gas supply pipeline and a quick wire-paying reel, and the 50-meter-level low-pressure gas supply pipeline is arranged on the quick wire-paying reel.

5. The toxic and harmful gas monitoring and protection system according to claim 1, characterized in that: The vehicle-mounted gas supply device includes a gas cylinder group, a pressure regulating panel, a pressure monitoring sensor, a pressure gauge, a valve and an air circuit, wherein, by closing the air filling valve and opening the gas cylinder valve, low-pressure air is output to the low-pressure air bag through the low-pressure regulating valve, and the air supply valve is connected to the low-pressure air bag through a quick connector. After the air supply valve is connected to the mask, it automatically starts to supply air to the user.

6. The toxic and harmful gas monitoring and protection system according to claim 1, characterized in that: The control device is an explosion-proof flat panel control device, which is arranged on the center console of the protection vehicle, close to the co-pilot position.

7. The toxic and harmful gas monitoring and protection system according to claim 1, characterized in that: The vehicle-mounted protective equipment includes an air-inflating compressor arranged on the protective vehicle, and the air-inflating compressor is used to inflate the gas cylinder alone or to inflate the gas supply system in combination.

8. The toxic and harmful gas monitoring and protection system according to claim 1, characterized in that: It also includes a first mounting bracket, a first mountable battery box, a first wireless H2S sensor, a first combustible gas sensor, and a wireless sensor bracket, a second mountable battery box, a second wireless H2S sensor, and a second combustible gas sensor arranged on the front bumper of the protection vehicle.

9. The toxic and harmful gas monitoring and protection system according to claim 1, characterized in that: It also includes a wireless communication module arranged in the protection vehicle, and the wireless communication module includes one of a 4G communication module and a 5G communication module.

10. The toxic and harmful gas monitoring and protection system according to claim 1, characterized in that: The protection vehicle is an electric protection vehicle or an internal combustion engine vehicle.

Images