Elevator fire emergency safety flame-retardant airbag system and control method

Abstract

The invention discloses an elevator fire emergency safety flame-retardant air bag system and a control method, the elevator fire emergency safety flame-retardant air bag system comprises an air bag, a thermal insulation device, and a main control unit, an inflation device, a gas monitoring device, a gas processing device and a power supply device which are arranged in the thermal insulation device, air outlets are formed in the inner wall and the outer wall of the air bag, and an air inlet is formed in the inner wall; the air bag is used for containing a human body, the inflation device transports oxygen into the air bag or stops transporting oxygen, the gas monitoring device extracts gas in the air bag in real time and analyzes the gas to obtain the oxygen content and the carbon dioxide content of the gas in the air bag, and the analysis result is output to the main control unit. The gas treatment device receives the gas analyzed by the gas monitoring device in real time, treats the gas, extracts carbon dioxide, transports the carbon dioxide to a gas outlet in the outer wall of the gas bag, and transports the gas from which the carbon dioxide is extracted to the gas bag; a place for normal breathing is formed in the air bag, and casualties and losses caused by fire disasters are reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of fire safety, and in particular to an elevator fire emergency safety flame-blocking bag system and a control method. Background Art

[0002] In modern high-rise buildings, although fire extinguishers are installed during the construction of residential buildings, fire extinguishers can only control smaller fires. For larger fires, residents cannot use fire extinguishers to save themselves without professional firefighting equipment. Under normal circumstances, when a fire occurs, residents often escape through fire passages, but for high-rise buildings, many people do not have time to escape from the fire scene, resulting in casualties. In the future, as the electrical wiring in the building ages, the probability of fire will gradually increase.

[0003] Most people die from fainting or suffocation due to difficulty breathing caused by the thick smoke produced by the fire. For larger fires, it takes at least fifteen minutes or even longer for the fire truck to receive the alarm and arrive at the fire scene and successfully put out the fire. It is very important to ensure that residents can survive the time waiting for firefighters to successfully put out the fire. Or when a fire occurs, some residents rush into the elevator, which cannot operate normally due to a malfunction caused by the fire, and the people in the elevator cannot get out. Because the elevator is a relatively closed place and restricts the movement of people, people in the elevator are very likely to suffocate.

[0004] Therefore, an elevator fire emergency safety fire-blocking bag system and a control method are designed to provide residents with a temporary place to ensure normal breathing when a fire occurs. Summary of the invention

[0005] To solve the above problems, the present invention provides an elevator fire emergency safety fire-blocking bag system and control method, which forms a place for normal breathing in the airbag to reduce casualties in the event of a fire.

[0006] The technical solution adopted by the present invention is: The present application provides an elevator fire emergency safety fire-proof airbag system, comprising an airbag, a thermal insulation device, and a main control unit, an inflation device, a gas monitoring device, a gas processing device, a third pipeline, a fifth pipeline, and a power supply device arranged in the thermal insulation device. The first pipeline, the second pipeline, and the fourth pipeline penetrate the side wall of the thermal insulation device and are connected to the airbag located outside the thermal insulation device. The fifth pipeline is connected to the part of the first pipeline located in the thermal insulation device. The materials of the airbag, the first pipeline, the second pipeline, and the fourth pipeline are all fireproof and thermal insulation materials. The inner wall and the outer wall of the airbag are both provided with air outlets, the inner wall is provided with an air inlet, and the airbag has a containing space, and the containing space is used to contain a human body; The inflation device is connected to the main control unit, and is connected to the air outlet on the inner wall of the airbag through the first pipeline, and is used to transport air / oxygen into the airbag through the first pipeline or stop transporting air / oxygen according to the command of the main control unit; The gas monitoring device is connected to the main control unit, and is connected to the air inlet of the inner wall of the airbag through the second pipeline, and is used to extract the gas in the airbag in real time through the second pipeline, analyze the gas, obtain the oxygen content and carbon dioxide content of the gas in the airbag, and output the analysis results to the main control unit; The gas processing device is connected to the gas monitoring device through the third pipeline, and is connected to the air outlet of the outer wall of the airbag through the fourth pipeline. The gas processing device is also connected to the air outlet of the inner wall of the airbag through the fifth pipeline. The gas processing device receives the gas analyzed by the gas monitoring device in real time through the third pipeline, processes the gas, extracts carbon dioxide, and transports the carbon dioxide to the air outlet of the outer wall of the airbag through the fourth pipeline. The gas after the carbon dioxide is extracted is transported to the airbag through the fifth pipeline and the first pipeline. The thermal insulation device is used to protect the various devices and pipelines inside it; The power supply device supplies power to all the modules.

[0007] Furthermore, the airbag is a rectangular bag-like structure with one side open, and a zipper is provided at the opening.

[0008] Furthermore, the inflation device includes a high-pressure compressed air cylinder / high-pressure oxygen cylinder and a solenoid valve, the solenoid valve is connected to the main control unit, and the solenoid valve is arranged between the high-pressure compressed air cylinder / high-pressure oxygen cylinder and the first pipeline, and is used to control the opening or closing of the high-pressure compressed air cylinder / high-pressure oxygen cylinder.

[0009] Furthermore, the gas monitoring device includes an air pump and a gas monitor. The air pump is arranged at a position of the second pipeline close to the air inlet of the inner wall of the airbag. The gas monitor simultaneously detects the concentration of oxygen and carbon dioxide and has an outlet, which is connected to the gas processing device through a third pipeline.

[0010] Furthermore, the gas processing device includes a carbon dioxide absorption unit, which is provided with a separation membrane. The downstream area of ​​the separation membrane is connected to the air outlet on the outer wall of the airbag through a fourth pipe, so as to discharge carbon dioxide to the surrounding area of ​​the airbag. The upstream area of ​​the separation membrane is connected to the air outlet on the inner wall of the airbag through a fifth pipe and the first pipe, so as to transport the gas after the carbon dioxide is extracted into the airbag.

[0011] Furthermore, the material of the thermal insulation device is composed of three layers of material, the outermost layer and the innermost layer are fireproof layers, the middle layer is multiple insulation layers, the fireproof layer is composed of solid flame retardant and rock wool board, and each insulation layer is composed of a ceramic fiber layer and an aluminum foil layer.

[0012] Furthermore, the first pipeline, the second pipeline and the fourth pipeline are made of copper and nickel alloy, and the copper and nickel alloy are coated with fire retardant paint.

[0013] Furthermore, the airbag is composed of flame-retardant cloth and ceramic fiber, the flame-retardant cloth is arranged on the outer wall of the airbag, and the ceramic fiber is arranged on the inner wall of the airbag.

[0014] Furthermore, the insulation device also includes four pillars and a plate. The four pillars and the plate are all made of ceramic fiber material and are evenly distributed at the bottom of the insulation box. The plate is arranged on the four pillars, and the main control unit, the inflation device, the gas monitoring device, the gas processing device, the third pipeline, the fifth pipeline and the power supply device are all arranged on the board.

[0015] The present application also provides a control method for an elevator fire emergency safety flame retardant bag system, which is applied to the elevator fire emergency safety flame retardant bag system. The elevator fire emergency safety flame retardant bag system is installed in an elevator, and the airbag is embedded in the elevator car wall. The insulation device and the main control unit, the inflation device, the gas monitoring device, the gas processing device, the third pipeline, the fifth pipeline and the power supply device arranged in the insulation device are installed on the top of the car, and multiple pipelines are laid in the car wall. An inflation button is arranged on the inner wall of the car, and an airbag activation area is arranged on the side of the car close to the inflation button. The control method comprises the following steps: Step S1: When the elevator door cannot be opened due to a fire, the user stands in the set airbag activation area and presses the inflation button on the inner wall of the car. The main control unit receives the command of the inflation button and sends a start signal to the inflation device. The inflation device transports air / oxygen into the airbag through the first pipeline, and the airbag is placed on the bottom wall of the elevator car at the same time. Step S2: The user drills into the airbag and seals the airbag, while the gas monitoring device extracts the gas in the airbag in real time through the second pipeline; Step S3: The gas monitoring device analyzes the oxygen content and carbon dioxide content of the gas in the airbag in real time, and outputs the analysis result to the main control unit. When the oxygen content is higher than the preset value, the main control unit outputs a stop signal to the inflation device. When the oxygen content is lower than the preset value, the main control unit continues to output a start signal to the inflation device. When the carbon dioxide content is higher than the preset value, the main control unit outputs an increase signal to the gas monitoring device, and the gas monitoring device increases the speed of extracting the gas in the airbag. When the carbon dioxide content is lower than the preset value, the main control unit outputs a deceleration signal to the gas monitoring device, and the gas monitoring device reduces the speed of extracting the gas in the airbag. Step S4: The gas analyzed by the gas monitoring device enters the gas processing device through the third pipeline. The gas processing device processes the gas and extracts carbon dioxide. The carbon dioxide is transported to the gas outlet on the outer wall of the airbag through the fourth pipeline. The gas after carbon dioxide is extracted is transported to the airbag through the fifth pipeline and the first pipeline.

[0016] Beneficial effects of this application: 1. The present application first provides an elevator fire emergency safety fire-retardant bag system, which, through the cooperation of a main control unit, an inflation device and a gas monitoring device, delivers oxygen to the airbag to maintain the breathing of personnel and keeps the oxygen within the range required by the human body. Too high or too low oxygen can easily cause discomfort or hypoxia to personnel, and the gas monitoring device continuously extracts gas from the airbag. Because the personnel in the airbag exhale carbon dioxide after inhaling oxygen, the carbon dioxide content in the airbag must also be strictly controlled to keep the carbon dioxide within the range required by the human body. Excessive carbon dioxide can cause poisoning and breathing difficulties.

[0017] 2. The elevator fire emergency safety fire-proof bag system of the present application, by adding a gas processing device, recycles the gas exhaled by the human body in the airbag, collects the carbon dioxide and transmits it to the air outlet on the outer wall of the airbag, which will increase the concentration of carbon dioxide around the airbag, thereby achieving the effect of suppressing and preventing fire to a certain extent, and the fire is not easy to spread to this side.

[0018] 3. The elevator fire emergency safety fire-resistant bag system of the present application, by adding a thermal insulation device, makes the components in the thermal insulation device under thermal insulation protection. The materials of the airbag, the first pipe, the second pipe and the fourth pipe are all fireproof and thermal insulation materials, which can insulate and prevent fire, so that the fire emergency safety fire-resistant bag system can work normally.

[0019] 4. The present application also provides a control method for an elevator fire emergency safety fire-resistant bag system. Through the control of the gas processing device, the inflation device and the gas monitoring device by the main control unit, the oxygen in the inflation device can be fully utilized and the waste gas exhaled by the human body can be recycled, thereby extending the oxygen supply time and increasing the possibility of survival of people in a fire.

[0020] 5. The present application provides a control method for an elevator fire emergency safety fire-retardant bag system, which is applied to elevators. When a fire occurs, the elevator door may not be opened due to a malfunction. At this time, the people trapped inside can press the inflation button in the car, and the airbag will be inflated until it automatically escapes from the car wall. At this time, multiple people in the elevator can get into the airbag. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural diagram of the elevator fire emergency safety fire-blocking bag system of this embodiment.

[0022] Figure 2 The airbag structure diagram of the elevator fire emergency safety fire-blocking bag system in some other embodiments; In the figure, 1 is an air bag, 11 is a zipper, 12 is a manhole, and 13 is a manhole cover.

[0023] Figure 3 Schematic diagram of installation of elevator fire emergency safety fire-blocking bag system applied to elevators in some other embodiments; In the figure, 1 is an airbag, 14 is an airbag jet port, 2 is a temperature insulation device, and 3 is an inflation button.

[0024] Figure 4 The present invention is a flow chart of a control method of an elevator fire emergency safety fire-blocking bag system according to some other embodiments. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solution and advantages of the present invention more clear, the technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings and a preferred implementation manner.

[0026] refer to Figure 1 The present application provides an elevator fire emergency safety flame-retardant airbag system, the system includes an airbag 1, a thermal insulation device 2, a first pipeline, a second pipeline, a fourth pipeline, and a main control unit arranged in the thermal insulation device 2, an inflation device, a gas monitoring device, a gas processing device, a third pipeline, a fifth pipeline and a power supply device, the inflation device and the gas monitoring device are connected to the main control unit, the gas processing device is connected to the gas monitoring device through the third pipeline, an air outlet and an air inlet are arranged on the inner wall of the airbag 1, an air outlet is arranged on the outer wall of the airbag 1, and the first pipeline, the second pipeline and the fourth pipeline partially penetrate the side wall and The airbag 1 located outside the thermal insulation device 2 is connected. Specifically, one end of the first pipe is connected to the inflation device, and the other end is connected to the air outlet of the inner wall of the airbag 1. One end of the second pipe is connected to the gas monitoring device, and the other end is connected to the air inlet of the inner wall of the airbag 1. The fourth pipe runs between the inner wall and the outer wall of the airbag 1, and is connected to the air outlet of the outer wall of the airbag 1 after being bent. One end of the third pipe is connected to the gas processing device, and the other end is connected to the gas monitoring device. One end of the fifth pipe is connected to the gas processing device, and the other end is connected to the position of the first pipe near the inflation device. The thermal insulation device 2 is used to protect the various devices and pipes inside it.

[0027] The materials of the airbag 1, the first pipe, the second pipe and the fourth pipe of this embodiment are all fireproof and heat-insulating materials, wherein the airbag 1 is composed of flame-retardant cloth and ceramic fiber, the flame-retardant cloth is arranged on the outer wall of the airbag 1, and the ceramic fiber is arranged on the inner wall of the airbag 1, the flame-retardant cloth is used for fire prevention to prevent the airbag 1 from burning, the ceramic fiber has multiple layers, a single layer of ceramic fiber cloth is 5mm, the thickness of the flame-retardant cloth is 5mm, ten layers of ceramic fiber cloth are used in this embodiment, the total thickness is 5cm, plus the thickness of the flame-retardant cloth is 5mm, the total thickness is 5.5cm, and it has good heat insulation and flame retardant effects, the ceramic fiber can effectively prevent the transfer and loss of heat, its thermal conductivity is low, the thermal conductivity coefficient is 0.03W / m·K, the working temperature of the ceramic fiber can be as high as 950℃~1280℃, and it can be used in fire, the first pipe, the second pipe and the fourth pipe are made of copper and nickel alloy, and the copper and nickel alloy are coated with fire retardant paint, preferably, the length of the first pipe, the second pipe and the fourth pipe is as short as possible, and a one-way valve is arranged inside the fourth pipe to prevent the gas from flowing in the opposite direction.

[0028] The material of the thermal insulation device 2 of this embodiment is composed of three layers of material. The outermost layer and the innermost layer are fireproof layers, and the middle layer is multiple insulation layers. The fireproof layer is composed of solid flame retardant and rock wool board. Each insulation layer is composed of a ceramic fiber layer and an aluminum foil layer. The multiple ceramic fiber layers enhance the insulation effect. The thickness of the thermal insulation device 2 is 1 cm. The thermal insulation device 2 also includes four columns and a plate. The four columns and the plate are all made of ceramic fiber material and are evenly distributed at the bottom of the insulation box. The plate is arranged on the four columns. The main control unit, the inflation device, the gas monitoring device, the gas processing device, the third pipeline, the fifth pipeline and the power supply device are all arranged on the board. The thermal conductivity of the ceramic fiber is low, but there is still a certain thermal conductivity to prevent the power supply device from exploding. Therefore, the columns and plates are designed to further increase the thermal insulation.

[0029] refer to Figure 2 The structure of the airbag 1 of the present application is specifically a rectangular bag-type structure with one side open. A zipper 11 is provided at the opening of the airbag 1. A manhole cover 13 is formed around the zipper 11. When the zipper 11 is opened, a hole is formed as a manhole 12. The size of the bag-type structure can be designed according to the number of people to be accommodated. In this embodiment, the number of people that can be accommodated is 1-10. When people stand or lie down side by side, it can accommodate up to ten people, while the squatting posture occupies a larger area. After a person drills into the airbag 1 from the manhole 12, the zipper 11 can be closed, that is, the manhole cover 13 is covered, so that the airbag 1 is in a closed space.

[0030] The inflation device of the present application includes a high-pressure compressed air cylinder and a solenoid valve, which is connected to a main control unit. The solenoid valve is arranged between the high-pressure compressed air cylinder and the first pipeline, and is used to control the opening or closing of the high-pressure compressed air cylinder. The high-pressure compressed air cylinder specifically adopts an aluminum alloy cylinder of the brand model Luxfer LX-30.6-6M, and the capacity of the cylinder is 30 cubic feet, that is, a cylinder of 0.85 cubic meters, a diameter of 15-20 cm, a height of 60-120 cm, and a capacity of about 850 liters of air. The nitrogen content of the air inhaled during breathing is 78%, oxygen is about 20.9%, carbon dioxide is about 0.03%, and other small amounts of gases, and the nitrogen content of the exhaled gas is 78%, oxygen is about 16%, carbon dioxide is 4%, and other small amounts of harmless gases. Without considering the recycling of the exhaled gas, a single person needs about 7.5 liters of air per minute, ten people need about 75 liters, and 850 liters can be used by ten people for about 11.4 minutes. The solenoid valve adopts the brand model Parker Pneutronics The response time of VQ110-24DC solenoid valve is less than 10 milliseconds.

[0031] The gas monitoring device of the present application includes an air suction pump and a gas monitor. The gas monitor can be a portable gas monitor with a very small size. The air suction pump is arranged at a position of the second pipeline close to the air inlet of the inner wall of the airbag 1. The air suction pump is used to extract gas from the airbag 1 into the gas monitor in real time. The gas monitor simultaneously analyzes and detects the concentration of oxygen and carbon dioxide in the gas, and outputs the detection result to the main control unit. The main control unit can continue or stop transporting oxygen into the airbag 1 according to the detection result, and increase or decrease the speed of extracting gas from the airbag 1. The gas monitor has an outlet, which is connected to the air inlet of the gas processing device through a third pipeline, and outputs the analyzed and detected gas to the gas processing device.

[0032] The gas processing device of the present application includes a carbon dioxide absorption unit, which is provided with a separation membrane. The downstream area of ​​the separation membrane is connected to the air outlet on the outer wall of the airbag 1 through a fourth pipe, and is used to discharge carbon dioxide to the airbag 1. The upstream area of ​​the separation membrane is connected to the air outlet on the inner wall of the airbag 1 through a fifth pipe and the first pipe, and is used to transport the gas after the carbon dioxide is extracted into the airbag 1. The fifth channel is provided with a solenoid valve for controlling whether the gas after the carbon dioxide is extracted is transported into the airbag 1.

[0033] When a person is at rest, the amount of carbon dioxide produced by breathing can reach about 0.2-0.3 liters per minute. When a fire occurs or a person is locked in an elevator, he or she will be nervous and exhale more carbon dioxide. When the concentration is high, a person exhales 1-2 liters of carbon dioxide per minute, while ten people can produce 2-3 liters or even 10-20 liters of carbon dioxide. When the concentration of carbon dioxide reaches 3%, breathing doubles, which will produce a large amount of carbon dioxide in a shorter time. When it reaches 10%, people may faint or suffocate. In order to keep the human body in the airbag 1 in a healthy breathing state, this application adds a gas treatment device. The gas treatment device uses a membrane to separate carbon dioxide with a concentration of up to 90%. The existing technology of the crystalline porous composite membrane developed by the team of Professor Sun Daofeng of China University of Petroleum (East China) can be used, and the separation selectivity of carbon dioxide reaches more than 99%. By using the gas processing device of the present application, the separated carbon dioxide is transported to the air outlet on the outer wall of the airbag 1 through the fourth pipe, so that the carbon dioxide concentration in the air around the airbag 1 can be maintained at a higher concentration. When a fire occurs, the carbon dioxide in the air is generally between 2% and 7%. People will have difficulty breathing and faint in this environment, and the carbon dioxide produced by the human body in the airbag 1 is continuously discharged to the surrounding area of ​​the airbag 1, which will keep the carbon dioxide concentration in the environment around the airbag 1 above 30%. At this time, the fire around the airbag 1 can be extinguished or the fire can be prevented from spreading to the surrounding area of ​​the airbag 1. The air inhaled by a person contains about 20.9% oxygen, about 0.04% carbon dioxide and about 79% nitrogen, and the exhaled air contains about 16% oxygen, about 4% carbon dioxide and about 79% nitrogen. The gas after the carbon dioxide is extracted by the gas processing device is continuously transported to the airbag 1 for reuse. Therefore, those skilled in the art can determine the capacity of the high-pressure gas cylinder of the inflation device according to the number of people accommodated in the airbag 1 and the oxygen reuse rate. After unlimited reuse of oxygen, in an ideal state (oxygen is not consumed in each link), each breath of the person in the airbag 1 consumes only 20.9% minus 16%. Oxygen, that is, 4.9% oxygen, a single person needs to breathe 6-8 liters of air in one minute. Excluding the reusable oxygen in one minute, a single person consumes about 7.5 liters multiplied by 4.9% of oxygen, that is, 0.3675 liters of oxygen. Ten people need to consume 3.675 liters of oxygen in one minute. The high-pressure cylinder contains 850 liters of air, which contains 177.65 liters of oxygen. 177.65 liters of oxygen can support ten people breathing in the airbag 1 for 48 minutes. According to needs, you can choose a larger capacity, such as 60 cubic feet, 80 cubic feet or even 100 cubic feet of high-pressure compressed air cylinders.

[0034] Therefore, it is more preferable that the inflation device directly selects an 850-liter oxygen cylinder. Since the exhaust gas from each breath is still discharged back into the airbag 1 after filtering out the carbon dioxide, the other gas content in the air can be reused many times. An 850-liter oxygen cylinder is enough for the person in the airbag 1 to breathe for 850 / 7.35=115.6 minutes. The entire inflation device can also be reduced in size as needed, thereby saving costs.

[0035] Preferably, the system also includes a trolley, and the airbag 1 can be folded and placed together with the insulation device 2 on the trolley. When in use, the trolley can be moved to a more closed space, so that the carbon dioxide concentration around the airbag 1 can be better increased, thereby suppressing the spread of the fire to the airbag 1, so that residents can hold on until the firefighters put out the fire. The system can also be used in elevators. When a fire occurs and people in the elevator cannot get out, the elevator itself is a closed space. If smoke enters the elevator, suffocation is very likely to occur. The elevator fire emergency safety fire-retardant bag system provided by this application can enable people in the elevator to breathe normally and avoid high temperatures.

[0036] The power module of the present application supplies power to all the above modules. The power module specifically adopts a large-capacity battery. A protective film is attached to the surface of the battery. The protective film adopts a multi-layer composite material with a thickness of 1-1.5 mm, including high-temperature resistant ceramic fibers and metal foil layers, which can reduce heat transfer to the battery, thereby better ensuring that the battery is in a low-temperature environment.

[0037] In some other embodiments, reference Figure 3-Figure 4 The present application also provides a control method for an elevator fire emergency safety flame retardant bag system, which is applied to the above-mentioned elevator fire emergency safety flame retardant bag system. The elevator fire emergency safety flame retardant bag 1 system is installed in the elevator, the airbag 1 is embedded in the elevator car wall, and the car wall is provided with an airbag ejection port 14. When the airbag 1 is inflated, it will pop out through the airbag ejection port 14. The insulation device 2 and the main control unit, the inflation device, the gas monitoring device, the gas processing device, the third pipeline, the fifth pipeline and the power supply device arranged in the insulation device 2 are installed on the top of the car, and multiple pipelines are laid in the car wall. An inflation button 3 is arranged on the inner wall of the car, and an airbag 1 starting area is arranged on the side of the car close to the inflation button 3. The control method comprises the following steps: Step S1: When the elevator door cannot be opened due to a fire, the user stands in the start area of ​​the safety airbag 1 and presses the inflation button 3 on the inner wall of the car. The main control unit receives the command of the inflation button 3 and sends a start signal to the inflation device. The inflation device transports air into the airbag 1 through the first pipeline. The airbag 1 is input with compressed air by the inflation device and automatically falls off and is placed on the bottom wall of the elevator car through the airbag jet port 14 at the same time. Step S2: The user drills into the airbag 1 and seals the airbag 1, while the gas monitoring device extracts the gas in the airbag 1 in real time through the second pipeline; Step S3: The gas monitoring device analyzes the oxygen content and carbon dioxide content of the gas in the airbag 1 in real time, and outputs the analysis result to the main control unit. When the oxygen content is higher than the preset value, the main control unit outputs a stop signal to the inflation device. When the oxygen content is lower than the preset value, the main control unit continues to output a start signal to the inflation device. When the carbon dioxide content is higher than the preset value, the main control unit outputs an increase signal to the gas monitoring device, and the gas monitoring device increases the speed of extracting the gas in the airbag 1. When the carbon dioxide content is lower than the preset value, the main control unit outputs a deceleration signal to the gas monitoring device, and the gas monitoring device reduces the speed of extracting the gas in the airbag 1. Step S4: The gas analyzed by the gas monitoring device enters the gas processing device through the third pipeline. The gas processing device processes the gas and extracts carbon dioxide. The carbon dioxide is transported to the gas outlet on the outer wall of the airbag 1 through the fourth pipeline. The gas after carbon dioxide is extracted is transported to the airbag 1 through the fifth pipeline and the first pipeline.

[0038] Preferably, the first pipe not only connects to the air outlet on the inner wall of the airbag 1, but also extends to the middle of the inner wall and the outer wall of the airbag 1. When the user stands in the set starting area of ​​the airbag 1 and presses the inflation button 3 on the inner wall of the car, the inflation device transports air to the middle of the inner wall and the outer wall of the airbag 1 at the fastest speed, thereby propping up the shape of the airbag 1, and the airbag 1 simultaneously escapes from the wall of the car and is automatically placed on the bottom wall of the car. The expansion of the shape of the airbag 1 can provide more room for activities for the user, but because part of the gas is stored between the inner layer and the outer layer of the airbag 1, a larger capacity gas cylinder is required. A starting button is provided on the inner wall of the airbag 1. When the user gets into the airbag 1 and closes the airbag 1, he presses the starting button provided on the inner wall of the airbag 1, and the inflation device continuously transports air through the inner wall air outlet of the airbag 1 of the first pipe.

[0039] As other embodiments, when the present application is used to accommodate 1-2 persons and the volume of the airbag 1 is greater than two cubic meters, the present application can directly install the high-pressure compressed gas cylinder on the side wall of the car, eliminating the thermal insulation device 2, the gas monitoring device, the gas processing device and multiple pipelines. When the user stands in the set airbag 1 starting area and presses the inflation button 3 on the inner wall of the car, the high-pressure compressed air cylinder transports air into the airbag 1, and the person in the airbag 1 can breathe normally for a long time.

[0040] When the present application designs the volume of the airbag 1 according to the effective bottom area of ​​the car and taking into account the comfortable standing of people, because the airbag 1 needs to occupy the car space when the user does not enter the airbag 1, a certain space needs to be reserved for the user to stand. On the whole, the airbag can be designed with a bottom area that does not exceed 3 / 5 of the minimum effective area of ​​the car, and the remaining space is the airbag activation area. Therefore, when technical personnel in this field apply the airbag 1 to the elevator, they can design the airbag 1 according to the following table.

[0041] Number of passengers in the car Minimum effective area of ​​car (㎡) Airbag designable bottom area Range of standard elevator car height (m) Minimum airbag volume m3 Maximum airbag volume m3 Maximum number of people who can stand comfortably on the bottom of the airbag 1 0.28 0.168 2-2.4 0.336 0.4032 1 (Uncomfortable standing posture) 2 0.49 0.294 0.588 0.7056 1 3 0.60 0.36 0.72 0.864 1 4 0.79 0.474 0.948 1.1376 1 5 0.98 0.588 1.176 1.4112 2 6 1.17 0.702 1.404 1.6848 2 7 1.31 0.786 1.572 1.8864 3 8 1.45 0.87 1.74 2.088 3 9 1.59 0.954 1.908 2.2896 3 10 1.73 1.038 2.076 2.4912 4 11 1.87 1.122 2.244 2.6928 4 12 2.01 1.206 2.412 2.8944 4 13 2.15 1.29 2.58 3.096 5 14 2.29 1.374 2.748 3.2976 5 15 2.43 1.458 2.916 3.4992 5 16 2.57 1.542 3.084 3.7008 6 17 2.71 1.626 3.252 3.9024 6 18 2.85 1.71 3.42 4.104 6 19 2.99 1.794 3.588 4.3056 7 20 3.13 1.878 3.756 4.5072 7

[0042] The number of standing people N that the bottom of the airbag 1 can accommodate can be calculated according to N=S / 0.25, where S is the surface area of ​​the maximum standing bottom of the airbag 1, N is the number of standing people that the ground of the airbag 1 can accommodate, and 0.25 is the minimum area when a human body is standing. Here, it is considered that in an emergency, people will not enter the airbag 1 according to the number of people warned on the airbag 1, nor will they necessarily enter in a standing posture. Therefore, only the number of people that the airbag 1 can accommodate in a neat and comfortable standing posture is estimated.

[0043] This application further reduces oxygen loss by outputting a stop signal to the inflation device when the oxygen content is higher than a preset value. The gas monitoring device continuously extracts gas from the airbag 1 so that carbon dioxide can be continuously transported to the air outlet on the outer wall of the airbag 1. High-concentration carbon dioxide prevents the flame from burning. The concentration of oxygen and carbon dioxide in the airbag 1 is controlled in real time so that the people in the airbag 1 are in a healthy state of breathing. This application can be applied to elevators. When a fire occurs, the elevator door may not open due to a malfunction. At this time, the trapped people can press the inflation button in the car, and the airbag 1 is inflated until it automatically escapes from the car wall. At this time, multiple people in the elevator can get into the airbag 1.

[0044] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications are also within the protection scope of the present invention.

Claims

1. An elevator fire emergency safety fire-blocking bag system, characterized in that: The device comprises an air bag (1), a thermal insulation device (2), a first pipe, a second pipe, a fourth pipe, and a main control unit, an inflation device, a gas monitoring device, a gas processing device, a third pipe, a fifth pipe, and a power supply device arranged in the thermal insulation device (2); the first pipe, the second pipe, and the fourth pipe partially penetrate the side wall of the thermal insulation device (2) and are connected to the air bag (1) located outside the thermal insulation device (2); the fifth pipe is connected to the part of the first pipe located inside the thermal insulation device (2); and the materials of the air bag (1), the first pipe, the second pipe, and the fourth pipe are all fireproof and thermal insulation materials; The inner wall and the outer wall of the airbag (1) are both provided with air outlets, the inner wall is provided with an air inlet, and the airbag (1) has a receiving space, and the receiving space is used to receive a human body; The inflation device is connected to the main control unit, and is connected to the air outlet on the inner wall of the airbag (1) via a first pipe, and is used to transport air / oxygen into the airbag (1) via the first pipe or stop transporting air / oxygen according to a command from the main control unit; The gas monitoring device is connected to the main control unit, and is connected to the air inlet on the inner wall of the airbag (1) via the second pipeline, and is used to extract the gas in the airbag (1) in real time via the second pipeline, analyze the gas, obtain the oxygen content and carbon dioxide content of the gas in the airbag (1), and output the analysis results to the main control unit; The gas processing device is connected to the gas monitoring device via a third pipeline, and is connected to the gas outlet on the outer wall of the airbag (1) via a fourth pipeline. The gas processing device is also connected to the gas outlet on the inner wall of the airbag (1) via a fifth pipeline. The gas processing device receives the gas analyzed by the gas monitoring device in real time via the third pipeline, processes the gas, extracts carbon dioxide, and transports the carbon dioxide to the gas outlet on the outer wall of the airbag (1) via the fourth pipeline. The gas after the carbon dioxide is extracted is transported to the inside of the airbag (1) via the fifth pipeline and the first pipeline. The thermal insulation device (2) is used to protect various devices and pipelines inside it; The power supply device supplies power to all the modules.

2. An elevator fire emergency safety fire-blocking bag system according to claim 1, characterized in that: The air bag (1) is a rectangular bag-like structure with one side open, and a zipper (11) is provided at the opening.

3. The elevator fire emergency safety fire-blocking bag system according to claim 1, characterized in that: The inflation device includes a high-pressure compressed air cylinder / high-pressure oxygen cylinder and a solenoid valve, which is connected to the main control unit. The solenoid valve is arranged between the high-pressure compressed air cylinder / high-pressure oxygen cylinder and the first pipeline, and is used to control the opening or closing of the high-pressure compressed air cylinder / high-pressure oxygen cylinder.

4. The elevator fire emergency safety fire-blocking bag system according to claim 1, characterized in that: The gas monitoring device comprises an air suction pump and a gas monitor. The air suction pump is arranged at a position of the second pipeline close to the air inlet of the inner wall of the air bag (1). The gas monitor simultaneously analyzes and detects the concentration of oxygen and carbon dioxide and has an air outlet. The air outlet is connected to the gas processing device through a third pipeline.

5. The elevator fire emergency safety fire-blocking bag system according to claim 1, characterized in that: The gas processing device comprises a carbon dioxide absorption unit, the carbon dioxide absorption unit is provided with a separation membrane, the downstream area of ​​the separation membrane is connected to the air outlet on the outer wall of the airbag (1) via a fourth pipe, and is used to discharge carbon dioxide to the airbag (1) around the airbag, and the upstream area of ​​the separation membrane is connected to the air outlet on the inner wall of the airbag (1) via a fifth pipe and the first pipe, and is used to transport the gas after the carbon dioxide is extracted into the airbag (1).

6. The elevator fire emergency safety fire-blocking bag system according to claim 1, characterized in that: The material of the thermal insulation device (2) is composed of three layers of material, the outermost layer and the innermost layer are fireproof layers, the middle layer is a plurality of thermal insulation layers, the fireproof layer is composed of solid flame retardant and rock wool board, and each thermal insulation layer is composed of a ceramic fiber layer and an aluminum foil layer.

7. The elevator fire emergency safety fire-blocking bag system according to claim 1, characterized in that: The first pipeline, the second pipeline and the fourth pipeline are made of copper and nickel alloy, and the copper and nickel alloy are coated with fire retardant paint.

8. The elevator fire emergency safety fire-blocking bag system according to claim 1, characterized in that: The airbag (1) is composed of flame-retardant cloth and ceramic fibers. The flame-retardant cloth is arranged on the outer wall of the airbag (1), and the ceramic fibers are arranged on the inner wall of the airbag (1).

9. The elevator fire emergency safety fire-blocking bag system according to claim 1, characterized in that: The thermal insulation device (2) further comprises four columns and a plate. The four columns and the plate are all made of ceramic fiber material and are evenly distributed at the bottom of the thermal insulation box. The plate is arranged on the four columns. The main control unit, the gas charging device, the gas monitoring device, the gas processing device, the third pipeline, the fifth pipeline and the power supply device are all arranged on the plate.

10. A control method for an elevator fire emergency safety fire-blocking bag system, characterized in that: The elevator fire emergency safety fire-fighting bag (1) system is applied to any one of claims 1 to 9, the elevator fire emergency safety fire-fighting bag (1) system is installed in the elevator, the airbag (1) is embedded in the elevator car wall, the insulation device (2) and the main control unit, the inflation device, the gas monitoring device, the gas processing device, the third pipeline, the fifth pipeline and the power supply device arranged in the insulation device (2) are installed on the top of the car, a plurality of pipelines are laid in the car wall, an inflation button (3) is arranged on the inner wall of the car, and an airbag (1) starting area is arranged on the side of the car close to the inflation button (3), and the control method comprises the following steps: Step S1: When the elevator door cannot be opened due to a fire, a user stands in the start area of ​​the airbag (1) and presses the inflation button (3) on the inner wall of the elevator car. The main control unit receives the command of the inflation button (3) and sends a start signal to the inflation device. The inflation device transports air / oxygen into the airbag (1) through the first pipeline. The airbag (1) is placed on the bottom wall of the elevator car at the same time. Step S2: the user drills into the airbag (1) and seals the airbag (1), while the gas monitoring device extracts the gas in the airbag (1) in real time through the second pipeline; Step S3: the gas monitoring device analyzes the oxygen content and carbon dioxide content of the gas in the airbag (1) in real time, and outputs the analysis result to the main control unit. When the oxygen content is higher than a preset value, the main control unit outputs a stop signal to the inflation device. When the oxygen content is lower than the preset value, the main control unit continues to output a start signal to the inflation device. When the carbon dioxide content is higher than the preset value, the main control unit outputs a speed-increasing signal to the gas monitoring device, and the gas monitoring device increases the speed of extracting the gas in the airbag (1). When the carbon dioxide content is lower than the preset value, the main control unit outputs a speed-reducing signal to the gas monitoring device, and the gas monitoring device reduces the speed of extracting the gas in the airbag (1). Step S4: The gas analyzed by the gas monitoring device enters the gas processing device through the third pipeline. The gas processing device processes the gas and extracts carbon dioxide. The carbon dioxide is transported to the gas outlet on the outer wall of the airbag (1) through the fourth pipeline. The gas after the carbon dioxide is extracted is transported to the airbag (1) through the fifth pipeline and the first pipeline.

Images