Fire extinguishing system and fire fighting truck thereof

Abstract

The invention provides a fire extinguishing system and a fire fighting truck thereof, and the fire extinguishing system comprises a rack, the main water pump, the pure water pipeline, the mixing pipeline, the water path pneumatic butterfly valve, the mixing path pneumatic butterfly valve, the water pump pressure gauge, the water path flowmeter, the mixing path flowmeter, the liquid mixer, the gas-liquid mixing module, the first component supply module, the expansion component supply module and the control module are mounted on the rack; the water outlet end of the main water pump is provided with a water pump pressure gauge, and then is connected with a pure water pipeline and a mixing pipeline in a forked manner; the starting ends of the pure water pipeline and the mixing pipeline are respectively provided with a water path pneumatic butterfly valve and a mixing path pneumatic butterfly valve; the first component supply module is connected with the water inlet end of the main water pump; and the at least one expansion component supply module converges and is connected to the front of the gas-liquid mixing module of the mixing pipeline. Two or more groups of fire extinguishing components can be mixed and foamed, and are integrated on the rack, so that independent movement is facilitated to support fire extinguishing.

Description

Technical Field

[0001] This invention relates to the field of fire-fighting equipment, and more specifically to a fire extinguishing system and its fire truck. Background Technology

[0002] To achieve the desired fire extinguishing effect, foam extinguishing agents require a specialized foam extinguishing system for thorough mixing, foaming, and release to reach optimal results. A compressed air foam extinguishing system is a foam-generating device that mixes water, extinguishing components, and compressed air in a specific ratio, foams them, and then sprays the mixture to extinguish the fire.

[0003] Existing compressed air foam fire extinguishing systems are mainly CAFS systems, which mix a single extinguishing component with water, then inject several times the volume of compressed air to foam the mixture before spraying it to extinguish the fire. These systems do not have the capability to mix and foam two or more extinguishing components. Summary of the Invention

[0004] The purpose of this invention is to address the problems existing in the prior art by providing a fire extinguishing system that can mix and foam two or more fire extinguishing components and integrate them on a frame for easy individual movement to support fire extinguishing.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A fire extinguishing system includes a frame, and a main water pump, a pure water pipeline, a mixing pipeline, a water circuit pneumatic butterfly valve, a mixing circuit pneumatic butterfly valve, a water pump pressure gauge, a water circuit flow meter, a mixing circuit flow meter, a liquid mixer, a gas-liquid mixing module, a first component supply module, an extended component supply module, and a control module mounted on the frame. A pump pressure gauge is installed at the outlet of the main water pump, which then branches into a pure water pipeline and a mixing pipeline. The end of the mixing pipeline is connected to the end of the pure water pipeline via a mixing one-way valve, forming an output port. The beginnings of the pure water pipeline and the mixing pipeline are respectively equipped with a water-operated pneumatic butterfly valve and a mixing pneumatic butterfly valve. The pure water pipeline and the mixing pipeline are also respectively equipped with a water flow meter and a mixing flow meter. A liquid mixer and a gas-liquid mixing module are sequentially installed on the mixing pipeline. The first component supply module is connected to the inlet of the main water pump. At least one extended component supply module is connected before the gas-liquid mixing module in the mixing pipeline. The first component supply module consists of a first component pipeline in which a first filter, a first component pump, a first flow meter, a first proportional valve, and a first pressure gauge are installed in sequence; a first return pipeline is connected before and after the first component pump, and a first pressure regulating valve is installed on the first return pipeline; The expanded component supply module consists of an expanded component pipeline that is sequentially equipped with an expanded filter, an expanded component pump, an expanded flow meter, an expanded proportional valve, an expanded pressure gauge, and an expanded one-way valve; an expanded return pipeline is connected before and after the expanded component pump, and an expanded pressure regulating valve is installed on the expanded return pipeline. The control module is connected to the main water pump, water circuit pneumatic butterfly valve, mixing circuit pneumatic butterfly valve, water pump pressure gauge, water circuit flow meter, mixing circuit flow meter, first component pump, first flow meter, first proportional valve, first pressure gauge, expansion component pump, expansion flow meter, expansion proportional valve, and expansion pressure gauge.

[0006] Furthermore, the gas-liquid mixing module consists of an air compressor, a three-way ball valve, a second pressure gauge, a second check valve, and a gas-liquid mixer installed sequentially on an air compressor pipeline. The air inlet of the gas-liquid mixer is connected to the end of the air compressor pipeline, and the water inlet and outlet of the gas-liquid mixer are respectively connected to the mixing pipeline. The air compressor and the second pressure gauge are connected to the control module.

[0007] Furthermore, the main water pump has a forked inlet end with an external suction port and a main inlet, and the main inlet is equipped with an inlet pneumatic butterfly valve.

[0008] Furthermore, the outlet of the main water pump is also branched to a flushing water path, which is provided with a main return pipeline, a first flushing path, and several extended flushing paths; a water injection pneumatic butterfly valve is provided on the main return pipeline; the first flushing path merges into the first filter connected to the first component pipeline; the extended flushing paths merge into the extended filters connected to each extended component pipeline; a first flushing pneumatic ball valve is provided on the first flushing path, and an extended flushing pneumatic ball valve is provided on the extended flushing path; the water injection pneumatic butterfly valve, the first flushing pneumatic ball valve, and the extended flushing pneumatic ball valve are respectively connected to the control module.

[0009] Furthermore, the first component pipeline is bifurcated at its starting end to provide a first external suction port and a first supply port. The first external suction port is provided with a first external suction manual valve, and the first supply port is provided with a first pneumatic ball valve. The starting end of the expansion component pipeline is bifurcated to have an expansion external suction port and an expansion supply port. The expansion external suction port is equipped with an expansion external suction manual valve, and the expansion supply port is equipped with an expansion pneumatic ball valve.

[0010] Furthermore, at least one pure water outlet is provided on the pure water pipeline after the water circuit pneumatic butterfly valve, and a pure water manual valve is provided at the pure water outlet. The mixing pipeline is located between the gas-liquid mixing module and the mixing one-way valve, and has at least one mixed liquid outlet, at which a mixed liquid manual valve is provided.

[0011] Furthermore, an end proportional valve is provided at the output port.

[0012] Furthermore, the outlet of the main water pump is also connected to a pressure relief port, which is equipped with a pressure relief pneumatic ball valve.

[0013] A fire truck equipped with the above-mentioned fire extinguishing system has a cargo frame connected to the rear of the truck body. A water tank and several component tanks are installed on the cargo frame. The fire extinguishing system is installed on the cargo frame, and the frame is detachably connected to the cargo frame. The water tank is connected to the inlet of the main water pump, and the starting ends of the first component pipeline and the expansion component pipeline are connected to each component tank respectively; a fire monitor is connected to the output port of the fire extinguishing system.

[0014] Furthermore, the water outlet of the water tank is connected to the main water inlet, and the water inlet of the water tank is connected to the main return pipeline; The component tanks are respectively connected to the first supply port of the first component pipeline and the expanded supply port of the expanded component pipeline.

[0015] The fire extinguishing system of this invention can mix and foam multiple components through a first component supply module and multiple extended component supply modules to achieve compound component spray fire extinguishing. It features high integration, is mounted on a frame, and includes several control modules, allowing for rapid transport or installation on different vehicles to support fire extinguishing. It offers multiple water or component supply methods, is highly adaptable, self-cleaning, reliable, and durable. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of a fire extinguishing system provided in an embodiment of the present invention.

[0017] Figure 2 yes Figure 1 A schematic diagram of the three-dimensional structure.

[0018] Figure 3 This is a structural diagram of the first component supply module.

[0019] Figure 4 This is a schematic diagram showing the result of expanding the component supply module.

[0020] Figure 5 This is a structural diagram of a fire truck. Detailed Implementation

[0021] The technical solution of the present invention will now be described in detail with reference to the accompanying drawings and specific embodiments. Example 1

[0022] like Figures 1 to 4As shown, the fire extinguishing system provided by the present invention includes a frame, and a main water pump 1, a pure water pipeline 11, a mixing pipeline 12, a water pneumatic butterfly valve 111, a mixing pneumatic butterfly valve 121, a water pump pressure gauge 13, a water flow meter 112, a mixing flow meter 122, a liquid mixer 123, a gas-liquid mixing module 2, a first component supply module 3, an extended component supply module 4, and a control module 9, all mounted on the frame.

[0023] A pump pressure gauge 13 is installed at the outlet of the main water pump 1, and then it branches to connect a pure water pipeline 11 and a mixing pipeline 12. The end of the mixing pipeline 12 is connected to the end of the pure water pipeline 11 through a mixing one-way valve 124 to form an output port. The beginning ends of the pure water pipeline 11 and the mixing pipeline 12 are respectively equipped with a water circuit pneumatic butterfly valve 111 and a mixing circuit pneumatic butterfly valve 121. The pure water pipeline 11 and the mixing pipeline 12 are also respectively equipped with a water circuit flow meter 112 and a mixing circuit flow meter 122. The mixing pipeline 12 is sequentially equipped with a liquid mixer 123 and a gas-liquid mixing module 2. The first component supply module 3 is connected to the inlet of the main water pump 1. At least one expansion component supply module 4 is connected to the gas-liquid mixing module 2 of the mixing pipeline 12.

[0024] The first component supply module 3 consists of a first component pipeline in which a first filter 32, a first component pump 33, a first flow meter 34, a first proportional valve 35, and a first pressure gauge 36 are installed in sequence; the first component pump 33 is connected to a first return pipeline 37, and a first pressure regulating valve 371 is provided on the first return pipeline 37.

[0025] The expanded component supply module 4 consists of an expanded component pipeline in which an expanded filter 42, an expanded component pump 43, an expanded flow meter 44, an expanded proportional valve 45, an expanded pressure gauge 46, and an expanded one-way valve 47 are installed in sequence; an expanded return pipeline 48 is connected before and after the expanded component pump 43, and an expanded pressure regulating valve 481 is installed on the expanded return pipeline 48.

[0026] The control module 9 is connected to the main water pump 1, the water circuit pneumatic butterfly valve 111, the mixing circuit pneumatic butterfly valve 121, the water pump pressure gauge 13, the water circuit flow meter 112, the mixing circuit flow meter 122, the first component pump 33, the first flow meter 34, the first proportional valve 35, the first pressure gauge 36, the expansion component pump 43, the expansion flow meter 44, the expansion proportional valve 45, and the expansion pressure gauge 46.

[0027] All pipelines, components, and control module 9 of this invention are integrated on the frame, allowing for easy transport and installation in any location, thus providing better mobility and adaptability. Various components are connected to the control module 9 to achieve integrated electrical control, enabling immediate use as long as the environment provides power, water, and material.

[0028] The working principle of this invention is as follows: the water source is supplied to the pure water pipeline 11 or the mixing pipeline 12 through the main water pump 1. The opening and closing of the pure water pipeline 11 and the mixing pipeline 12 are controlled by the corresponding water circuit pneumatic butterfly valve 111 and the mixing circuit pneumatic butterfly valve 121.

[0029] If pure water is required for fire extinguishing, the pneumatic butterfly valve 121 of the mixing circuit can be closed, and water can be directly delivered to the output port through the pure water pipeline 11 via the main water pump 1.

[0030] If a mixed extinguishing agent is required, the pneumatic butterfly valve 111 in the water circuit can be closed. The first component supply module 3 can supply the first extinguishing agent, which is delivered to the main water pump 1 at a set pressure via the first component pump 33. After the first extinguishing agent is mixed with water, it is thoroughly mixed by the liquid mixer 123, and then aerated and mixed into a foam extinguishing agent by the gas-liquid mixing module 2, which is then delivered to the output port. Generally, the liquid mixer 123 can be a spiral mixer or similar device, utilizing the kinetic energy of the fluid itself for mixing. The first component supply module 3 typically supplies extinguishing agents with higher viscosity.

[0031] If more extinguishing components need to be mixed, this can be achieved using several expansion component supply modules 4. (For simplicity, the image is omitted.) Figure 1 Only one extended component supply module 4 is shown. Various extinguishing components are delivered separately via extended component pump 43, converging into mixing pipeline 12 before the gas-liquid mixing module 2. The gas-liquid mixing module 2 aerators and foams the mixture to form a mixed foam extinguishing agent, which is then delivered to the output port. These extended extinguishing components should preferably be of low viscosity.

[0032] During the above process, the supply of each component will be automatically adjusted to a specific ratio according to the water volume of the main water pump 1, and the control module 9 will automatically control it based on the feedback from each component.

[0033] Specifically, the gas-liquid mixing module 2 consists of an air compressor 21, a three-way ball valve 22, a second pressure gauge 23, a second check valve 24, and a gas-liquid mixer 25 installed sequentially on an air compressor pipeline. The air inlet of the gas-liquid mixer 25 is connected to the end of the air compressor pipeline, and the water inlet and outlet of the gas-liquid mixer 25 are respectively connected to the mixing pipeline 12. The air compressor 21 and the second pressure gauge 23 are connected to the control module 9.

[0034] Preferably, the main water pump 1 has a forked inlet end with an external suction port 14 and a main inlet, and the main inlet is equipped with an inlet pneumatic butterfly valve 15.

[0035] The main water inlet can be connected to a water source such as water tank 5, while the external water inlet 14 can be connected to other water sources such as fire hoses, which facilitates long-term fire fighting and rescue.

[0036] Furthermore, the outlet of the main water pump 1 is also branched to a flushing water path, which is provided with a main return pipeline, a first flushing path, and several extended flushing paths; a water injection pneumatic butterfly valve 16 is provided on the main return pipeline; the first flushing path merges into the first filter 32 connected to the first component pipeline; the extended flushing paths merge into the extended filter 42 connected to each extended component pipeline; a first flushing pneumatic ball valve 17 is provided on the first flushing path, and an extended flushing pneumatic ball valve 18 is provided on the extended flushing path; the water injection pneumatic butterfly valve 16, the first flushing pneumatic ball valve 17, and the extended flushing pneumatic ball valve 18 are respectively connected to the control module 9.

[0037] The flushing water system can direct water to the first component pipeline and the expansion component pipeline for flushing operations, removing any residual extinguishing components and preventing corrosion caused by prolonged contact, thus making the entire system more reliable and durable. Excess water can also be returned to the water source container connected to the main inlet via the main return pipeline.

[0038] Similar to the main water pump 1, the first component pipeline is bifurcated at the starting end to provide a first external suction port 38 and a first supply port. The first external suction port 38 is provided with a first external suction manual valve, and the first supply port is provided with a first pneumatic ball valve 31.

[0039] The starting end of the expansion component pipeline is bifurcated to provide an expansion external suction port 49 and an expansion supply port. The expansion external suction port 49 is equipped with an expansion external suction manual valve, and the expansion supply port is equipped with an expansion pneumatic ball valve 41.

[0040] This facilitates the timely replenishment of extinguishing components. Even if the extinguishing components supplied through the first or extended supply ports are exhausted, new extinguishing components can be quickly supplied from different sources.

[0041] To increase output, preferably, at least one pure water outlet 114 is provided on the pure water pipeline 11 after the water circuit pneumatic butterfly valve 111, and a pure water manual valve is provided at the pure water outlet 114.

[0042] The mixing pipeline 12 is located between the gas-liquid mixing module 2 and the mixing one-way valve 124, and has at least one mixed liquid outlet 125. A mixed liquid manual valve is provided at the mixed liquid outlet 125.

[0043] In this way, both the pure water outlet 114 and the mixed liquid outlet 125 can be connected to the fire extinguishing pipeline at any time, allowing for simultaneous fire extinguishing spraying from multiple outlets.

[0044] As a further preferred embodiment, an end proportional valve 113 is provided at the output port for controlling the output flow rate at the output port.

[0045] Furthermore, the outlet of the main water pump 1 is also connected to a pressure relief port, which is equipped with a pressure relief pneumatic ball valve 19 to release excess pressure and prevent the system pressure from overloading. Example 2

[0046] Please see Figure 5 This embodiment provides a fire truck equipped with the above-mentioned fire extinguishing system. The truck body is connected to a cargo frame at the rear. A water tank 5 and several component tanks 6 are installed on the cargo frame. The fire extinguishing system described in Embodiment 1 is installed on the cargo frame, and the frame and the cargo frame are detachably connected.

[0047] Water tank 5 is connected to the inlet of main water pump 1, and the starting ends of the first component pipeline and the expansion component pipeline are respectively connected to each component tank 6; a fire monitor 8 is connected to the output port of the fire extinguishing system.

[0048] In this embodiment, the carriage and the cargo frame form a vehicle, which is not limited to a traditional fire truck, but can also be a small truck with independent transportation function, etc.

[0049] Specifically, the outlet of the water tank 5 is connected to the main inlet, and the inlet of the water tank 5 is connected to the main return pipeline. The component tanks 6 are respectively connected to the first supply port of the first component pipeline and the expansion supply port of the expansion component pipeline.

[0050] Since water tank 5 and each component tank 6 are directly mounted on the vehicle frame, they become mobile supply sources, connected to the corresponding main water inlet, first supply port, and expansion supply port. At the same time, the fire extinguishing system is also equipped with corresponding external suction ports 14, first external suction ports 38, and expansion external suction ports 49, for connection to external supply sources at any time, in case of emergency.

[0051] This invention provides a fire extinguishing system capable of supplying pure water, single-component fire extinguishing foam, and multi-component mixed fire extinguishing foam for fire suppression, thereby improving fire extinguishing efficiency. The system boasts a high degree of integration, allowing for easy installation on any vehicle or other equipment, and is readily usable and easily movable. The system features a self-washing function, can be expanded with various spray pipes, and can be connected to different water sources or fire extinguishing component supply sources as needed, offering high flexibility and durability. The fire truck equipped with this system, carrying its own water tank 5 and component tank 6, can quickly move to the fire scene for fire extinguishing operations.

[0052] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention. Therefore, the scope of protection of this patent should be determined by the appended claims.

Claims

1. A fire extinguishing system, characterized in that: Includes a frame, and mounted on the frame are a main water pump, pure water pipeline, mixing pipeline, water circuit pneumatic butterfly valve, mixing circuit pneumatic butterfly valve, water pump pressure gauge, water circuit flow meter, mixing circuit flow meter, liquid mixer, gas-liquid mixing module, first component supply module, extended component supply module and control module; A pump pressure gauge is installed at the outlet of the main water pump, which then branches into a pure water pipeline and a mixing pipeline. The end of the mixing pipeline is connected to the end of the pure water pipeline via a mixing one-way valve, forming an output port. The beginnings of the pure water pipeline and the mixing pipeline are respectively equipped with a water-operated pneumatic butterfly valve and a mixing pneumatic butterfly valve. The pure water pipeline and the mixing pipeline are also respectively equipped with a water flow meter and a mixing flow meter. A liquid mixer and a gas-liquid mixing module are sequentially installed on the mixing pipeline. The first component supply module is connected to the inlet of the main water pump. At least one extended component supply module is connected before the gas-liquid mixing module in the mixing pipeline. The first component supply module consists of a first component pipeline in which a first filter, a first component pump, a first flow meter, a first proportional valve, and a first pressure gauge are installed in sequence; a first return pipeline is connected before and after the first component pump, and a first pressure regulating valve is installed on the first return pipeline; The expanded component supply module consists of an expanded component pipeline that is sequentially equipped with an expanded filter, an expanded component pump, an expanded flow meter, an expanded proportional valve, an expanded pressure gauge, and an expanded one-way valve; an expanded return pipeline is connected before and after the expanded component pump, and an expanded pressure regulating valve is installed on the expanded return pipeline. The control module is connected to the main water pump, water circuit pneumatic butterfly valve, mixing circuit pneumatic butterfly valve, water pump pressure gauge, water circuit flow meter, mixing circuit flow meter, first component pump, first flow meter, first proportional valve, first pressure gauge, expansion component pump, expansion flow meter, expansion proportional valve, and expansion pressure gauge.

2. The fire extinguishing system according to claim 1, characterized in that: The gas-liquid mixing module consists of an air compressor, a three-way ball valve, a second pressure gauge, a second check valve, and a gas-liquid mixer installed sequentially on an air compressor pipeline. The air inlet of the gas-liquid mixer is connected to the end of the air compressor pipeline, and the water inlet and outlet of the gas-liquid mixer are respectively connected to the mixing pipeline. The air compressor and the second pressure gauge are connected to the control module.

3. The fire extinguishing system according to claim 1, characterized in that: The main water pump has a forked inlet with an external suction port and a main inlet. The main inlet is equipped with an inlet pneumatic butterfly valve.

4. The fire extinguishing system according to claim 3, characterized in that: The outlet of the main water pump is also branched to a flushing water path, which is provided with a main return pipeline, a first flushing path, and several extended flushing paths. A water injection pneumatic butterfly valve is provided on the main return pipeline. The first flushing path merges into the first filter connected to the first component pipeline. The extended flushing paths merge into the extended filters connected to each extended component pipeline. A first flushing pneumatic ball valve is provided on the first flushing path, and an extended flushing pneumatic ball valve is provided on the extended flushing path. The water injection pneumatic butterfly valve, the first flushing pneumatic ball valve, and the extended flushing pneumatic ball valve are respectively connected to the control module.

5. The fire extinguishing system according to claim 1, characterized in that: The first component pipeline is bifurcated at its starting end and is provided with a first external suction port and a first supply port. The first external suction port is provided with a first external suction manual valve, and the first supply port is provided with a first pneumatic ball valve. The starting end of the expansion component pipeline is bifurcated to have an expansion external suction port and an expansion supply port. The expansion external suction port is equipped with an expansion external suction manual valve, and the expansion supply port is equipped with an expansion pneumatic ball valve.

6. The fire extinguishing system according to claim 1, characterized in that: The pure water pipeline is provided with at least one pure water outlet after the water circuit pneumatic butterfly valve, and a pure water manual valve is provided at the pure water outlet. The mixing pipeline is located between the gas-liquid mixing module and the mixing one-way valve, and has at least one mixed liquid outlet, at which a mixed liquid manual valve is provided.

7. The fire extinguishing system according to claim 1, characterized in that: An end proportional valve is provided at the output port.

8. The fire extinguishing system according to claim 1, characterized in that: The outlet of the main water pump is also connected to a pressure relief port, which is equipped with a pressure relief pneumatic ball valve.

9. A fire truck equipped with the fire extinguishing system of claim 1, wherein a cargo frame is connected to the rear of the truck body, characterized in that: The cargo vehicle frame is equipped with a water tank and several component tanks. The fire extinguishing system is installed on the cargo vehicle frame, and the frame is detachably connected to the cargo vehicle frame. The water tank is connected to the inlet of the main water pump, and the starting ends of the first component pipeline and the expansion component pipeline are connected to each component tank respectively; a fire monitor is connected to the output port of the fire extinguishing system.

10. The fire truck according to claim 9, characterized in that: The water tank's outlet is connected to the main inlet, and the water tank's inlet is connected to the main return pipeline. The component tanks are respectively connected to the first supply port of the first component pipeline and the expanded supply port of the expanded component pipeline.

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