Full-automatic train multi-stage eruption fire alarm safety control and automatic fire extinguishing system

Abstract

The invention provides a full-automatic train multi-stage eruption fire alarm safety control and automatic fire extinguishing system, and belongs to the technical field of train fire prevention. The full-automatic train multi-stage eruption fire alarm safety control and automatic fire extinguishing system comprises a controller, a detector and a multi-stage fire extinguishing device. When a fire disaster occurs, the detector detects the occurrence of the disaster situation and sends an instruction to the controller, the controller makes a judgment according to the electric signal input frequency of the detector and the smoke sensing of the detector and sends a starting instruction to the control module, and the control module starts the multi-stage fire extinguishing device to realize automatic fire extinguishing of the fire disaster in the compartment. Through cooperation of the detector, the controller and the fire extinguishing device, when it is detected that a fire happens in the compartment, fire extinguishing treatment can be automatically conducted on the position where the fire happens, the fire extinguishing speed in the compartment is increased, and then the safety index of a train and personnel is increased.

Description

Technical Field

[0001] The present application relates to the field of train fire prevention, and in particular to a fully automatic train multi-stage eruption fire alarm safety control and automatic fire extinguishing system. Background Art

[0002] The automation level of urban rail transit lines is getting higher and higher, especially the fully automatic driving trains, which have high operating efficiency and can effectively reduce various costs throughout the life cycle. It is an important direction for the development of urban rail transit in my country. There are significant differences between the operation scenarios of highly automated trains and non-fully automatic lines. They put forward higher requirements for the organization of driving and emergency handling under abnormal conditions. The execution efficiency of dispatching operations must be further improved to ensure the driving safety of the lines. With the improvement of train equipment technology, some train automatic fire prevention and control systems have appeared in the existing technology, but the reliability of fire monitoring is low, the items of various monitoring equipment are single, and the monitoring data and the real-time status of the equipment are not comprehensively analyzed. There may be a delay in fire detection, and the fire cannot be detected in time; and the data is difficult to deeply integrate. The train has multiple independent subsystems, and the data types of various subsystems are numerous and independent of each other, which is easy to form "information islands". There is a lack of a unified data analysis platform, and the role of big data cannot be played. In addition, when a fire occurs, the fire extinguishing system needs to be manually turned on to extinguish the fire, which reduces the speed of fire extinguishing on the train, and thus increases the risk factor for the carriages and personnel. Summary of the invention

[0003] In order to remedy the above shortcomings, the present application provides a fully automatic train multi-stage eruption fire alarm safety control and automatic fire extinguishing system, which aims to improve the problem that when a fire occurs, the fire extinguishing system needs to be manually opened to extinguish the fire, thereby reducing the fire extinguishing speed of the train, and further increasing the risk factor to the carriages and personnel.

[0004] An embodiment of the present application provides a fully automatic train multi-stage eruption fire alarm safety control and automatic fire extinguishing system, including a controller, a detector and a multi-stage fire extinguishing device.

[0005] A control module is provided inside the controller, and the controller is connected to the detector and the multi-stage fire extinguishing device through wireless transmission. The detector and the multi-stage fire extinguishing device are respectively installed in each carriage of the fully automatic train, and the controller is installed in the driver's cab. When a fire occurs, the detector detects the disaster and sends a command to the controller. The controller makes a judgment based on the input frequency of the detector electrical signal and the smoke sensed by the detector, and sends a start command to the control module. The control module starts the multi-stage fire extinguishing device to realize automatic fire extinguishing inside the carriage.

[0006] In a specific implementation scheme, the controller can classify the fire situation into Class A, Class B, Class C and Class D according to the detector smoke value and input frequency, where Class A is a low-level fire, Class B is a minor fire, Class C is a medium-level fire, and Class D is a serious fire.

[0007] In a specific embodiment, the multi-stage fire extinguishing device includes a perfluorohexanone fire extinguishing device and a cooling spray device, wherein the perfluorohexanone fire extinguishing device can automatically spray and extinguish the fire at the fire site after receiving a signal, and the cooling spray device can assist in extinguishing the fire at the fire site and have a cooling effect on the surrounding environment.

[0008] In a specific embodiment, each group of detectors is equipped with a group of perfluorohexanone fire extinguishing devices, and a group of perfluorohexanone fire extinguishing devices includes four tanks, and the dosages of perfluorohexanone bottoms in the four tanks are 100ml, 200ml, 300ml and 400ml respectively.

[0009] In a specific implementation scheme, solid nitrogen is arranged inside the four tanks, which is converted into gaseous nitrogen after receiving a 24V start signal, thereby driving perfluorohexanone to spray out and extinguish the fire.

[0010] In a specific embodiment, the detector includes a photoelectric smoke fire detector, wherein the photoelectric smoke fire detector is capable of detecting smoke generated when a fire occurs inside the vehicle compartment, thereby transmitting the detection result to the controller.

[0011] In a specific implementation scheme, the detector also includes a fire sound and light alarm and a combustible gas detector. The fire sound and light alarm can detect the different light sensitivities inside the car, thereby more accurately detecting possible fires in the car. The combustible gas detector can detect the concentration of combustible gas inside the car to prevent customers from carrying combustible gas and causing leakage, thereby reducing the probability of fire.

[0012] In a specific implementation scheme, the detector also includes a temperature-sensing fire alarm and a power-off alarm. The temperature-sensing fire alarm can observe the temperature inside the car in real time. When a fire occurs, the temperature inside the car rises sharply, and the spray cooling device is automatically started to assist in fire extinguishing and cooling the interior of the car. The power-off alarm can detect whether the circuit system inside the car is operating normally, so that the controller can quickly cut off the power inside the car where the fire occurs, to prevent the fire from spreading and worsening the disaster due to leakage.

[0013] In a specific implementation scheme, the detector also includes a fire broadcast alarm. When the detector transmits the fire situation to the controller, the controller automatically controls the fire broadcast alarm to sound, reminding occupants in other carriages that a fire has occurred on the train, so that passengers can foresee the disaster and prevent panic among the crowd.

[0014] In a specific implementation scheme, the spray cooling device includes a spray main pipe, the water inlet end of the spray main pipe is connected to the main water inlet pipe arranged outside the car, a filter, a check valve and a main control valve are arranged behind the main water inlet pipe, a fire pump is arranged at the connection part between the spray main pipe and the main water inlet pipe, a first water outlet end of the fire pump is connected to the water inlet end of the spray main pipe, and a second water outlet end of the fire pump is connected to an alarm branch pipe, the main water inlet pipe is provided with a solenoid valve, both ends of the solenoid valve are provided with mechanical emergency manual control valves, and the water outlet end of the spray main pipe is connected to the main water inlet end of the solenoid valve. They are respectively connected to the water inlet ends of several sprinkler branch pipes, and an exhaust valve is arranged on the top of the vertical section of the sprinkler main pipe. A terminal water testing device is arranged at the water outlet end of the sprinkler branch pipe located at the most unfavorable point of the system, and sprinkler nozzles are arranged at the water outlet ends of all sprinkler branch pipes. The pressure gauge, water testing valve and water testing nozzle of the terminal water testing device are arranged at the water outlet side of the sprinkler branch pipe in sequence. The hydraulic alarm is arranged at the water outlet end of the alarm branch pipe, and the water inlet end of the external sewer pipe is arranged below the hydraulic alarm, and the pressure switch is arranged at the alarm branch pipe.

[0015] Beneficial effects: Detectors and multi-stage fire extinguishing devices are installed inside each carriage of the fully automatic train, and the controller is installed in the driver's cab. When a fire occurs, the detector detects the occurrence of a disaster and sends a command to the controller. The controller makes a judgment based on the input frequency of the detector's electrical signal and the detector's smoke, and sends a start command to the control module. The control module starts the multi-stage fire extinguishing device to automatically extinguish the fire inside the carriage. Through the cooperation of the detector, controller and fire extinguishing device, when a fire is detected inside the carriage, the location of the fire can be automatically extinguished, which improves the speed of extinguishing the fire inside the carriage, thereby improving the safety index of the train and personnel. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the implementation methods of the present application, the drawings required for use in the implementation methods will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is a structural schematic diagram of a fully automatic train multi-stage eruption fire alarm safety control and automatic fire extinguishing system provided by an embodiment of the present application;

[0018] Figure 2 A schematic diagram of the structure provided for the implementation method of this application;

[0019] Figure 3 A schematic diagram of the structure provided for the implementation method of this application;

[0020] Figure 4 A schematic diagram of the structure provided for an implementation method of the present application. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present application will be described below in conjunction with the drawings in the embodiments of the present application.

[0022] See also Figure 1-Figure 4 The present application provides a fully automatic train multi-stage eruption fire alarm safety control and automatic fire extinguishing system, including a controller, a detector and a multi-stage fire extinguishing device.

[0023] See also Figure 1 , Figure 2 , Figure 3 and Figure 4 , a control module is set inside the controller, and the controller is connected to the detector and the multi-stage fire extinguishing device through wireless transmission; wherein, the detector and the multi-stage fire extinguishing device are respectively installed inside each carriage of the fully automatic train, and the controller is installed in the driver's cab. When a fire occurs, the detector detects the occurrence of a disaster and sends a command to the controller. The controller makes a judgment based on the input frequency of the detector's electrical signal and the detector's smoke, and sends a start command to the control module. The control module starts the multi-stage fire extinguishing device to automatically extinguish the fire inside the carriage. Through the cooperation of the detector, controller and fire extinguishing device, when a fire is detected inside the carriage, the location of the fire can be automatically extinguished, which improves the speed of extinguishing the fire inside the carriage, thereby improving the safety index of the train and personnel.

[0024] In this embodiment, a data storage system, a big data storage system, a fire database system, a module remote control system and an intelligent central system are provided inside the controller. The big data storage system performs cloud storage on a large amount of received data to realize real-time access to fire characteristic data. The fire database system pre-stores the properties of flame-retardant materials used in the train, the structural fire resistance of the train as a whole and key parts, the combustion characteristics of common passenger luggage, the location, quantity, type and corresponding fire extinguishing measures of fire extinguishing equipment, provides data support for the cloud computing analysis system and enables intelligent central decision-making. The intelligent central system includes a cloud computing analysis system. The cloud computing analysis system integrates, analyzes and calculates the monitored data by calling the data stored in the big data storage system and combining the real-time data of the detector. The fire situation analysis system analyzes and predicts the fire situation by calling the preset database and the data integrated, analyzed and calculated by the cloud computing analysis system. The fire classification decision system classifies the fire according to the fire situation analyzed and predicted by the fire situation analysis system.

[0025] In this embodiment, the controller can classify the fire conditions into Class A, Class B, Class C and Class D according to the smoke value of the detector and the input frequency, wherein Class A is a low-level fire, Class B is a minor fire, Class C is a medium-level fire, and Class D is a serious fire. The multi-stage fire extinguishing device includes a perfluorohexanone fire extinguishing device and a cooling spray device, wherein the perfluorohexanone fire extinguishing device can automatically spray and extinguish the fire at the fire site after receiving the signal, and the cooling spray device can assist in extinguishing the fire at the fire site and cool the surrounding environment. Each group of detectors is equipped with a group of perfluorohexanone fire extinguishing devices, and a group of perfluorohexanone fire extinguishing devices includes four tanks, and the dosages of perfluorohexanone at the bottom of the four tanks are 100ml, 200ml, 300ml and 400ml respectively. The four tanks are provided with solid nitrogen inside, which is converted into gaseous nitrogen after receiving the 24V start signal, thereby driving the perfluorohexanone to spray out and extinguish the fire. Among them, when a Class A fire occurs, the control module will control the tank containing 100ml to spray, so as to extinguish the fire. When a Class B fire occurs, the control module will control the tank containing 200ml to spray, so as to extinguish the fire. When a Class C fire occurs, the control module will control the tank containing 300ml to spray, so as to extinguish the fire. When a Class D fire occurs, the control module will control the tank containing 400ml to spray, so as to extinguish the fire.

[0026] In this embodiment, the detector includes a photoelectric smoke fire detector, wherein the photoelectric smoke fire detector can detect the smoke generated when a fire occurs inside the carriage, thereby transmitting the detection result to the controller. The detector also includes a fire sound and light alarm and a combustible gas detector. The fire sound and light alarm can detect the different light sensitivities inside the carriage, thereby more accurately detecting the possible fire in the carriage. The combustible gas detector can detect the concentration of combustible gas inside the carriage to prevent customers from carrying combustible gas and causing leakage, thereby reducing the probability of fire. The detector also includes a temperature-sensing fire alarm and a power-off alarm. The temperature-sensing fire alarm can observe the temperature inside the carriage in real time. When a fire occurs, the temperature inside the carriage rises sharply, and the spray cooling device is automatically started to assist in fire extinguishing and cooling the interior of the carriage. The power-off alarm can detect whether the circuit system inside the carriage is operating normally, so that the controller can quickly cut off the power inside the carriage where the fire occurs, to prevent the fire from spreading and aggravating the disaster due to leakage. The detector also includes a fire broadcast alarm. When the detector transmits the fire situation to the controller, the controller automatically controls the fire broadcast alarm to sound, reminding people in other carriages that a fire has occurred on the train, so that passengers can foresee the disaster and prevent panic among the crowd.

[0027] In this embodiment, the spray cooling device includes a spray dry pipe, the water inlet end of the spray dry pipe is connected to the main water inlet pipe arranged outside the car, the main water inlet pipe is provided with a filter, a check valve and a main control valve, the connection part of the spray dry pipe and the main water inlet pipe is provided with a fire pump, the first water outlet end of the fire pump is connected to the water inlet end of the spray dry pipe, and the second water outlet end of the fire pump is connected to the alarm branch pipe, the main water inlet pipe is provided with a solenoid valve, and mechanical emergency manual control valves are provided at both ends of the solenoid valve, and the water outlet ends of the spray dry pipe are respectively It is connected to the water inlet ends of several sprinkler branch pipes, and an exhaust valve is arranged on the top of the vertical section of the sprinkler main pipe. A terminal water testing device is arranged at the water outlet end of the sprinkler branch pipe located at the most unfavorable point of the system. Sprinkler nozzles are arranged at the water outlet ends of all sprinkler branch pipes. The pressure gauge, water testing valve and water testing nozzle of the terminal water testing device are arranged at the water outlet side of the sprinkler branch pipe in sequence. The hydraulic alarm is arranged at the water outlet end of the alarm branch pipe, and the water inlet end of the external sewer pipe is arranged below the hydraulic alarm, and the pressure switch is arranged at the alarm branch pipe. Among them, sprinkler heads, sprinkler main pipes, alarm branches and sprinkler branches constitute the fire-fighting network. The fire-fighting water pump inputs water into the fire-fighting network. When the system is conducting a cold spray test, the solenoid valve is started from the controller, and the fire-fighting water pump is started through a series of chain reactions. The pressurized water enters the sprinkler branch and finally enters the terminal water testing device. The pressure gauge indicates the pressure at the most unfavorable point of the fire-fighting network after the fire-fighting unit is started, which can be used to check whether the pressure of the fire-fighting network meets the standard. There is enough space under the water testing nozzle for placing water storage devices such as buckets. After opening the water testing valve, pressurized water flows out into the bucket to check whether the flow of the fire-fighting network meets the standard. When water enters the alarm branch, the pressure switch is activated, and the hydraulic alarm is driven by the pressurized water.

[0028] The working principle of the fire alarm safety control and automatic fire extinguishing system of the fully automatic train multi-stage eruption:

[0029] The detector and multi-stage fire extinguishing device are installed in each carriage of the fully automatic train, and the controller is installed in the driver's cab. When a fire occurs, the detector detects the disaster and sends a command to the controller. The controller makes a judgment based on the input frequency of the detector's electrical signal and the detector's smoke, and sends a start command to the control module. The control module starts the multi-stage fire extinguishing device to automatically extinguish the fire inside the carriage. Through the cooperation of the detector, controller and fire extinguishing device, when a fire is detected inside the carriage, the location of the fire can be automatically extinguished, which improves the speed of extinguishing the fire inside the carriage, thereby improving the safety index of the train and personnel.

[0030] The above description is only an embodiment of the present application and is not intended to limit the scope of protection of the present application. For those skilled in the art, the present application may have various changes and variations. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application should be included in the scope of protection of the present application. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.

Claims

1. A fully automatic train multi-stage eruption fire alarm safety control and automatic fire extinguishing system, characterized in that: It includes a controller, a detector and a multi-stage fire extinguishing device. A control module is arranged inside the controller. The controller is respectively connected with the detector and the multi-stage fire extinguishing device through wireless transmission; Among them, detectors and multi-section fire extinguishing devices are installed inside each carriage of the fully automatic train respectively, and the controller is installed in the driver's cab. When a fire occurs, the detector detects the disaster and sends a command to the controller. The controller makes a judgment based on the input frequency of the detector's electrical signal and the detector's smoke, and sends a start command to the control module. The control module starts the multi-stage fire extinguishing device to automatically extinguish the fire inside the carriage.

2. A fully automatic train multi-stage eruption fire alarm safety control and automatic fire extinguishing system according to claim 1, characterized in that: The controller can classify the fire situation into Class A, Class B, Class C and Class D according to the detector smoke value and input frequency, among which Class A is a low-level fire, Class B is a minor fire, Class C is a medium-level fire, and Class D is a serious fire.

3. A fully automatic train multi-stage eruption fire alarm safety control and automatic fire extinguishing system according to claim 1, characterized in that: The multi-stage fire extinguishing device includes a perfluorohexanone fire extinguishing device and a cooling spray device. Among them, the perfluorohexanone fire extinguishing device can automatically spray and extinguish the fire at the fire site after receiving the signal, and the cooling spray device can assist in extinguishing the fire at the fire location and cool down the surrounding environment.

4. A fully automatic train multi-stage eruption fire alarm safety control and automatic fire extinguishing system according to claim 3, characterized in that: Each set of detectors is equipped with a set of perfluorohexanone fire extinguishing device. A set of perfluorohexanone fire extinguishing device includes four tank bodies. The dosages of perfluorohexanone bottom in the four tank bodies are 100ml, 200ml, 300ml and 400ml respectively.

5. A fully automatic train multi-stage eruption fire alarm safety control and automatic fire extinguishing system according to claim 4, characterized in that: Solid nitrogen is set inside the four tanks. After receiving the 24V starting signal, it is converted into gaseous nitrogen, thereby driving perfluorohexanone to spray out and extinguish the fire.

6. A fully automatic train multi-stage eruption fire alarm safety control and automatic fire extinguishing system according to claim 1, characterized in that: The detector includes a photoelectric smoke fire detector, wherein the photoelectric smoke fire detector can detect smoke generated when a fire occurs inside the vehicle compartment, and transmit the detection result to the controller.

7. The fully automatic train multi-stage fire alarm safety control and automatic fire extinguishing system according to claim 1 is characterized in that: The detectors also include fire sound and light alarms and combustible gas detectors. The fire sound and light alarms can detect the different light sensitivities inside the carriage, thereby more accurately detecting possible fires in the carriage. The combustible gas detectors can detect the concentration of combustible gases inside the carriage to prevent customers from carrying combustible gases and causing leaks, thereby reducing the probability of fire.

8. The fully automatic train multi-stage fire alarm safety control and automatic fire extinguishing system according to claim 1 is characterized in that: The detector also includes a temperature-sensing fire alarm and a power-off alarm. The temperature-sensing fire alarm can observe the temperature inside the car in real time. When a fire occurs, the temperature inside the car rises sharply, and the sprinkler cooling device is automatically started to assist in fire extinguishing and cooling the interior of the car. The power-off alarm can detect whether the circuit system inside the car is operating normally, so that the controller can quickly cut off the power inside the car where the fire has occurred, to prevent the fire from spreading and worsening the disaster due to leakage.

9. The fully automatic train multi-stage fire alarm safety control and automatic fire extinguishing system according to claim 1 is characterized in that: The detector also includes a fire broadcast alarm. When the detector transmits the fire situation to the controller, the controller automatically controls the fire broadcast alarm to sound, reminding people in other carriages that a fire has occurred on the train, so that passengers can foresee the disaster and prevent panic among the crowd.

10. The fully automatic train multi-stage eruption fire alarm safety control and automatic fire extinguishing system according to claim 3 is characterized in that: The spray cooling device comprises a spray dry pipe, the water inlet end of the spray dry pipe is connected to the main water inlet pipe arranged outside the carriage, a filter, a check valve and a main control valve are arranged behind the main water inlet pipe, a fire pump is arranged at the connection part between the spray dry pipe and the main water inlet pipe, a first water outlet end of the fire pump is connected to the water inlet end of the spray dry pipe, and a second water outlet end of the fire pump is connected to an alarm branch pipe, the main water inlet pipe is provided with an electromagnetic valve, both ends of the electromagnetic valve are provided with mechanical emergency manual control valves, and the water outlet ends of the spray dry pipe are respectively connected to a plurality of spray The water inlet end of the sprinkler branch pipe is connected, and an exhaust valve is provided at the top of the vertical section of the sprinkler main pipe. The water outlet end of the sprinkler branch pipe located at the most unfavorable point of the system is provided with a terminal water testing device. The water outlet ends of all sprinkler branch pipes are provided with sprinkler nozzles. The pressure gauge, water testing valve and water testing nozzle of the terminal water testing device are successively arranged at the water outlet side of the sprinkler branch pipe. The hydraulic alarm is arranged at the water outlet end of the alarm branch pipe, and the water inlet end of the external sewer pipe is arranged below the hydraulic alarm, and the pressure switch is arranged at the alarm branch pipe.

Images