CN218187593U - Linkage type bus fire extinguishing system - Google Patents

Abstract

The invention discloses a linkage bus fire extinguishing system, which comprises a storage tank, a cooling layer, a solenoid valve, an emergency button, a control panel, an audible and visual alarm lamp, a trigger component and a spray component, and the storage tank is used for storing fire extinguishing agent , the storage tank is placed at the front and rear of the roof, a cooling layer is provided outside the storage tank, the solenoid valve is located at the outlet of the storage tank, and is used to control the communication between the storage tank and the pipeline, and the pipeline is located inside the bus, Used to connect tanks and sprinkler assemblies. The invention solves the problem that the current traditional bus fire extinguishing system cannot be driven due to the high power of the fire pump and needs to add an additional power supply, and the sprinkler system "fires at one point, and the whole vehicle extinguishes the fire", resulting in waste of fire extinguishing agents and the like.

Description

A linkage bus fire extinguishing system

technical field

The invention relates to the technical field of bus fire-fighting systems, in particular to a linkage type bus fire-extinguishing system.

Background technique

The bus is one of the daily means of transportation, and it is also one of the most frequented means of transportation. During the carrying process of the bus, especially during the rush hour, the number of people in the bus will increase significantly. Once a fire breaks out in the bus, very serious consequences will be produced. The hidden fire hazards in the bus seriously threaten the personal safety of passengers. About 2 minutes after the fire broke out, the temperature in the car and the emission of toxic gases reached the maximum value. Therefore, when the bus cabin caught fire, the time left for passengers to escape was only 2 minutes. The point of the fire in the bus is that the fire starts quickly and spreads quickly, causing burns; thick smoke and poisonous gas cause suffocation; the compartment is crowded and the evacuation channel is narrow; At present, the common fire extinguishing equipment for buses includes portable fire extinguishers and sprinkler systems. Hand-held fire extinguishers have a small dose and are only suitable for initial fire extinguishing of some small fires. The sprinkler system is generally used for early fire extinguishing of small and medium-sized fires. When a fire breaks out, it is powered by a separate fire pump, and the fire extinguishing agent is sprayed from the nozzle above the roof to extinguish the fire. However, the above-mentioned bus fire extinguishing system has some defects and deficiencies: 1. It needs to be equipped with a special fire pump, which causes an additional burden on the bus; 2. The power of the fire pump is relatively large, and the power supply of the bus may not provide enough power. Equipped with additional power supply for supplementation; 3. The existing fire protection system is indiscriminate spraying of the whole vehicle, and the limited fire extinguishing agent is sprayed indiscriminately, resulting in waste of resources and low fire extinguishing efficiency.

Utility model content

The technical problem to be solved by the utility model is to provide a linkage type bus fire extinguishing system for the above technical problems, which can avoid the fire extinguishing agent resources caused by the existing bus fire pumps with insufficient power, indiscriminate spraying, and lack of precise fire extinguishing systems. Waste, low fire extinguishing efficiency and other issues.

Adopt following technical scheme for solving the technical problem of the present utility model:

A linkage type bus fire extinguishing device, including a storage tank, a cooling layer, a solenoid valve and a spray assembly, the storage tank is used to store fire extinguishing agent, the storage tank is placed at the rear of the bus roof, and the storage tank A cooling layer is provided on the outside of the tank, and the electromagnetic valve is located at the outlet of the storage tank to control the communication between the storage tank and the pipeline, and the pipeline is located inside the bus to connect the storage tank and the spray assembly, and the spray assembly Set inside the bus.

An emergency button device is also included, and the emergency button device includes an alarm button. The emergency button device is distributed near both sides of the bus interior windows and is connected to the control panel through a circuit. The control panel controls the sound and light alarm lights to warn, The control panel is located in the cab of the bus and is used to control the opening of the electromagnetic valve at the outlet of the storage tank.

The alarm button is located inside the protective housing of the panic button device.

The interior of the bus is provided with a trigger assembly, which includes a temperature detector located on the underside of the passenger seat inside the bus and a smoke detector located on the top side of the interior of the bus, and the trigger assembly is respectively connected to the control panel and the solenoid valve.

The sprinkler assembly includes a mobile telescopic hose, a spray switch is set between the mobile telescopic hose and the pipeline to control the communication of the mobile telescopic hose, and a nozzle is provided at the front end of the mobile telescopic hose to improve fire extinguishing performance. As a result, the movable telescopic hose is movably arranged on both sides of the window.

The cooling layer is pasted with heat-insulating reflective foil, and cooling liquid is arranged between the cooling layer and the storage tank.

The acousto-optic warning light adopts a tubular type warning light, and the outer diameter of the audible-visual warning light is the same as that of the vertical pipe handrail of the bus, and is embedded on the vertical pipe handrail.

A total of 12 mobile telescopic hoses are arranged on both sides of the bus, each spaced at 1 meter, and the telescopic amount of the mobile telescopic hoses is 0.5-1 meter.

The storage tank is filled with fire extinguishing agent heptafluoropropane.

Compared with the prior art, the beneficial effects of the utility model are as follows: the pressure is used to drive the injection, eliminating the need for traditional fire pumps, motors, storage batteries and other complicated driving mechanisms and power supply mechanisms, and the system architecture is simpler and more robust. The cost is effectively reduced, the equipment required to be installed is less, the volume is smaller, the difficulty of installation on the bus is greatly reduced, and the maintenance is more convenient. Simultaneously, two trigger modes of trigger component and emergency button are adopted. The trigger component is an automatic trigger device for the system. The response time of the system improves the fire extinguishing efficiency. The emergency button is a device that is manually triggered when the trigger component does not work or does not come in time to trigger. It solves the traditional single trigger method and improves the effectiveness and safety of fire triggering. Changing the traditional fire extinguishing agent to heptafluoropropane and using heptafluoropropane as the fire extinguishing agent can effectively minimize the damage to personnel, save the time for escape and rescue, and make personnel suffer only minor injuries and skin trauma as much as possible.

Description of drawings

Fig. 1 is the front section view of the utility model;

Fig. 2 is a partially enlarged view of the spray assembly and the emergency button device of the present invention;

Fig. 3 is the overall top view of the utility model;

Among them: 1-storage tank; 2-cooling layer; 3-solenoid valve; 4-emergency button device; 41-alarm button; 42-protective shell; 5-control panel; 71-temperature detector; 72-smoke detector; 8-spray assembly; 81-mobile telescopic tube; 82-fixed snap ring; 83-jet switch; 84-nozzle.

detailed description

Embodiments of the invention are described in detail below, but the invention can be practiced in many different ways as defined and covered by the claims.

As shown in Figure 1-3, a linkage bus fire extinguishing system includes a storage tank 1, a cooling layer 2, a solenoid valve 3, an emergency button device 4, a control panel 5, an audible and visual alarm lamp 6, a trigger assembly 7 and a spray nozzle. The shower assembly 8 and the storage tank 1 are used to store the fire extinguishing agent heptafluoropropane. The storage tank 1 is placed at the rear of the roof, and a cooling layer 2 is provided on the outside of the storage tank 1. A heat-insulating reflective foil is pasted on the cooling layer 2, and a coolant is provided between the cooling layer 2 and the storage tank 1. When the storage tank 1 When the temperature is too high, the cooling liquid between the cooling layer 2 and the storage tank 1 can be cooled. The solenoid valve 3 is located at the outlet of the storage tank 1 and is used to control the communication between the storage tank 1 and the pipeline. The pipeline is located inside the bus and is used to connect the storage tank 1 and the spray assembly 8 . Emergency button device 4 comprises alarm button 41 and protective shell 42, and alarm button 41 is positioned at protective shell 42 inside, and alarm button 41 is evenly distributed near bus interior window both sides, is connected with control panel 5 by circuit. The control panel 5 is located in the cab of the bus and is used to control the opening of the electromagnetic valve 3 at the outlet of the storage tank 1 . The trigger assembly 7 includes a temperature detector 71 positioned at the lower side of the passenger seat inside the bus and a smoke detector 72 positioned at the top side of the inside of the bus. The temperature detector 71 and the smoke detector 72 are at least 14 and are evenly distributed on Inside the compartment. The spray assembly 8 includes a mobile telescopic hose 81, a spray switch 83 for controlling the connection between the mobile telescopic hose 81 and the pipeline is set, and a nozzle 84 is provided at the front end of the mobile telescopic hose 81 to improve For fire extinguishing effect, 81 mobile telescopic hoses pass through fixed deck 82 and are movably arranged on both sides of the window. The number of mobile telescopic hoses 81 is arranged according to the actual situation. There are 12 arranged on both sides, each with an interval of 1 meter. The expansion and contraction of the mobile telescopic hoses 81 is between 0.5-1 meter. The acousto-optic warning lamp 6 adopts a tubular type warning lamp, and the outer diameter of the acousto-optic warning lamp 6 is the same as the outer diameter of the vertical pipe handrail, and is embedded on the vertical pipe handrail.

When a fire broke out in the bus, the fire extinguishing steps of the present invention are as follows:

Step 1. When the heat detectors 71 evenly distributed under the bus passenger seats detect high temperature (100°C) or the smoke detectors 72 evenly distributed on the top of the bus detect smoke, they will convert the physical signal to It is a digital signal, which is transmitted to the control panel 5 located in the driver's cab. The control panel 5 judges the fire location and its fire situation in the bus according to the signals fed back by the temperature detector 71 and the smoke detector 72, and through the built-in The acousto-optic warning light 6 in the vertical pipe handrail carries out fire warning to passengers and drivers.

Another warning method in step 1 is to manually warn through the emergency button device 4. The emergency button device 4 feeds back the signal to the control panel 5 through the circuit, and the control panel 5 controls the sound and light alarm lamp 6 to warn. In this case, the trigger component 7 (The temperature detector 71 and the smoke detector 72) fail or the fire warning threshold has not yet been reached, and the artificial warning is performed when the fire is detected first, which increases the timeliness and safety of the fire warning.

Step 2. Within 2 to 3 seconds after the sound and light alarm lamp 6 warns, if there is no fire, the driver can cancel the warning through the button on the control panel 5; The opening of the solenoid valve 3 at the outlet of the tank 1 makes the fire extinguishing agent in the storage tank 1 quickly fill the fire-fighting pipeline and the mobile telescopic hose 81 in the spray assembly 8 .

Step 3. Passengers near the fire can take off the movable telescopic hose 81 from the fixed holder 82, aim the nozzle 84 at the root of the fire, and press the spray switch 83 to extinguish the fire until the fire is extinguished.

Wherein the material of the movable telescopic hose 81 is polytetrafluoroethylene, the telescoping range of the mobile telescopic hose 81 is 0.5m-1m, and the pressure is 2.0Mpa, meeting the pressure standard of 1.5Mpa inside the fire extinguisher.

The fire extinguishing agent stored in storage tank 1 is heptafluoropropane, which is a clean gas chemical fire extinguishing agent that mainly uses chemical fire extinguishing and has physical fire extinguishing effect. It is colorless, odorless, low toxicity, non-conductive, and does not pollute the protected object , will not cause damage to property and precision facilities. Moreover, heptafluoropropane can reliably extinguish class B and C fires and electrical fires with a low fire extinguishing concentration; the storage space is small, the critical temperature is high, the critical pressure is low, and it can be liquefied and stored at room temperature; it does not contain particles or oily residues after release , has no destructive effect on the atmospheric ozone layer and meets environmental protection requirements.

Claims (9)

1. A linked bus fire extinguishing system, characterized in that it includes a storage tank (1), a cooling layer (2), a solenoid valve (3) and a spray assembly (8), and the storage tank (1) is used for To store fire extinguishing agent, the storage tank (1) is placed at the rear of the bus roof, a cooling layer (2) is provided outside the storage tank (1), and the solenoid valve (3) is located in the storage tank (1) The outlet is used to control the communication between the storage tank (1) and the pipeline. The pipeline is located inside the bus and is used to connect the storage tank (1) and the spray assembly (8), and the spray assembly (8) is arranged on Inside the bus. 2. A linked bus fire extinguishing system according to claim 1, characterized in that it further comprises an emergency button device (4), and the emergency button device (4) includes an alarm button (41), and the emergency button device (4) Distributed near both sides of the windows inside the bus, connected to the control panel (5) through a circuit, the control panel (5) controls the sound and light alarm lamp (6) for warning, and the control panel (5) is located at In the cab of the bus, it is used to control the opening of the solenoid valve (3) at the outlet of the storage tank (1). 3. A linkage bus fire extinguishing system according to claim 2, characterized in that: the alarm button (41) is located inside the protective shell (42) of the emergency button device (4). 4. A linkage bus fire extinguishing system according to claim 1 or 2, characterized in that: a trigger component (7) is provided inside the bus, and the trigger component (7) includes a The temperature detector (71) on the side and the smoke detector (72) on the top side inside the bus, and the trigger assembly (7) is respectively connected to the control panel (5) and the solenoid valve (3). 5. A linked bus fire extinguishing system according to claim 4, characterized in that: the spray assembly (8) includes a mobile telescopic hose (81), and the mobile telescopic hose (81) is connected to An injection switch (83) for controlling the connection of the mobile telescopic hose (81) is set between the pipelines. A nozzle (84) is provided at the front end of the mobile telescopic hose (81) to improve the fire extinguishing effect. Pipe (81) activity is arranged on the vehicle window both sides. 6. A linkage bus fire extinguishing system according to claim 1 or 5, characterized in that: the cooling layer (2) is pasted with heat-insulating reflective foil, and the cooling layer (2) and the storage tank (1) There is coolant in between. 7. A linked bus fire extinguishing system according to claim 2, characterized in that: the sound and light warning light (6) adopts a tubular warning light, and the outer diameter of the sound and light warning light (6) is the same as that of the bus The vertical pipe handrails of the car have the same outer diameter and are embedded in the vertical pipe handrails. 8. A linked bus fire extinguishing system according to claim 1 or 7, characterized in that: there are 12 mobile telescopic hoses (81) arranged on both sides of the bus, each spaced at 1 meter, so The amount of expansion and contraction of the mobile telescopic hose (81) is 0.5-1 meter. 9. A linkage bus fire extinguishing system according to claim 8, characterized in that: the storage tank (1) is filled with the fire extinguishing agent heptafluoropropane.

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