Movable water mist cart fire extinguishing device

Abstract

The utility model discloses a movable type water mist cart fire extinguishing device which comprises a cart frame, a diesel engine pump set is fixedly connected to one side in the cart frame, a water tank is arranged on one side of the cart frame, the output end of the diesel engine pump set is fixedly connected with a water mist gun, and the output end of the water mist gun is fixedly connected with a water pump. And a water level early warning monitoring mechanism is arranged in the water tank. The water level early warning monitoring mechanism composed of the floating ball, the clamping spring and the like is arranged in the water tank, when the water level in the water tank drops to the height of the lower clamping spring, the floating ball drops to make contact with the lower clamping spring, the switching value signal sensor detects that the clamping spring and the floating ball are removed, and a water level early warning signal is sent to the control middle end; remote monitoring of the water level of the water tank is achieved, insufficient water can be found in time, the situation that the fire extinguishing progress is affected by insufficient water of the fire extinguishing device is avoided, and the technical effect of remote transmission of water shortage and electricity shortage signals is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a cart fire extinguishing technical field, especially a mobile water mist cart fire extinguishing device. BACKGROUND

[0002] The water mist cart fire extinguishing device is a mobile fire-fighting equipment, and the working principle of the water mist cart fire extinguishing device is mainly that water is atomized into extremely fine water droplets through high pressure, and these water droplets rapidly vaporize after encountering fire, thereby playing a role in fire extinguishing. The fire extinguishing mechanism mainly includes surface cooling, asphyxiation, heat radiation blocking and wetting effect. The high-pressure water mist has a small particle size, rapidly vaporizes after encountering fire, absorbs a large amount of heat, rapidly reduces the temperature of the burning surface, and forms water vapor after vaporization, thereby overall surrounding and covering the burning area, causing the burning to asphyxiate due to lack of oxygen. The water mist has very superior efficiency in blocking the transmission of heat radiation, can effectively block intense heat radiation, is conducive to the evacuation of personnel and the fire extinguishing and rescue work of firefighters, and under the action of pressure, the mist droplets will impact the surface of the burning object, thereby wetting the burning object and preventing the further generation of solid volatile combustible gas.

[0003] The power source of the existing high-pressure water mist cart-type fire extinguishing device is mainly driven by a lithium battery. However, the lithium battery has low detection accuracy of electric quantity, and the water quantity monitoring cannot timely issue a water shortage warning. In the case of water and electricity shortage, the warning is slow or there is no early warning.

[0004] A mobile water mist cart fire extinguishing device disclosed in Chinese patent document No. CN209662503U includes a vehicle frame, a water tank and a high-pressure water mist spray gun. The water tank is arranged at the upper end of the vehicle frame, and a foam tank is arranged at the rear side of the water tank. A motor drive controller, a battery, a direct-current brushless motor and a high-pressure pump are arranged in the vehicle frame. The motor drive controller controls the state of the battery, the battery provides electric energy for the direct-current brushless motor, the direct-current brushless motor drives the high-pressure pump to move, the low-pressure water inlet end of the high-pressure pump is connected to the water tank through a hose, the high-pressure water outlet end of the high-pressure pump is provided with a pressure regulating valve, the high-pressure water outlet end of the pressure regulating valve is connected to a rubber hose, and the pressure relief end of the pressure regulating valve is connected to the water tank through a high-pressure hose. The lithium battery is used for energy storage, and is green, energy-saving and environmentally friendly. The device is more reliable and rapid when starting through electrical button control. The motor has low noise and better stability when running. In the middle development stage of a fire, it can still quickly and effectively control the spread of the fire. However, the mobile water mist cart fire extinguishing device does not monitor the water and electricity shortage.

[0005] In order to solve the above-mentioned problems in the prior art, it is a problem worth studying to provide a mobile water mist cart fire extinguishing device. Utility model content

[0006] The utility model discloses a movable water mist trolley fire extinguishing device which realizes remote transmission of water shortage and power failure signals.

[0007] The utility model discloses a movable water mist trolley fire extinguishing device which realizes remote transmission of water shortage and power failure signals.

[0008] A movable water mist trolley fire extinguishing device, comprising a trolley frame, a diesel engine pump group is fixedly connected to one side of the inside of the trolley frame, a water tank is arranged on one side of the outside of the trolley frame, a water mist gun is fixedly connected to the output end of the diesel engine pump group, and a water level early warning monitoring mechanism is arranged in the water tank.

[0009] The water level early warning monitoring mechanism comprises a lifting rod fixedly connected to one side of the inside of the water tank, a floating ball slidingly connected to the lifting rod, snap springs arranged above and below the floating ball, and an on-off signal sensor connected with the lower snap spring.

[0010] The distance between the two snap springs is greater than the height of the floating ball, the floating ball is subjected to a buoyant force greater than its own gravity in water, the height of the lower snap spring is matched with the early warning water level height of the water tank, and when the on-off signal sensor detects the pressure of the floating ball on the lower snap spring, a water level early warning signal is sent to the control center.

[0011] The diesel engine pump group comprises a diesel engine and a high-pressure pump fixedly connected to the inside of the trolley frame, the diesel engine drives the high-pressure pump to pump water for fire extinguishing, the low-pressure water inlet end of the high-pressure pump is communicated with the water tank through a hose, and the high-pressure water outlet end of the high-pressure pump is communicated with the water mist gun.

[0012] One side of the diesel engine pump group is rotationally connected with a reel, the high-pressure water outlet end of the diesel engine pump group and the water mist gun are communicated through a high-pressure hose, and the reel is convenient for winding the excess high-pressure hose.

[0013] The rear end bottom of the trolley frame is provided with wheels on both sides, universal wheels are arranged on both sides of the front end bottom of the trolley frame, and the bottom heights of the wheels and the universal wheels are equal.

[0014] Protective plates are arranged on both sides of the trolley frame, a pressure gauge is arranged on one side of the protective plate, and the sensing end of the pressure gauge is communicated with the water outlet end of the diesel engine pump group.

[0015] The inside of the trolley frame is provided with a battery, the inside of the frame is provided with a power monitoring module, the power monitoring module is electrically connected with the battery, the battery supplies power for the power monitoring module and the diesel engine pump group control module, when the monitored power is higher than 5V, the relay acts, the common end and the normally closed end are disconnected, when the monitored power is lower than 5V, the relay is not attracted, the common end and the normally closed end send a closing signal, and remote transmission of the power shortage signal is realized.

[0016] Positive beneficial effects:

[0017] 1. The mobile water mist trolley fire extinguishing device, when the water level in the water tank decreases to the lower snap spring height, the float ball falls down and contacts the lower snap spring, the switch signal sensor detects that the snap spring and the float ball are disconnected, a water level early warning signal is sent to the control terminal, remote monitoring of the water level in the water tank is realized, the water shortage is found in time, and the situation that the fire extinguishing progress of the fire extinguishing device is affected due to insufficient water is avoided.

[0018] 2. The mobile water mist trolley fire extinguishing device, water mist uses water as a fire extinguishing agent, is green and environmentally friendly, harmless to human bodies and the surrounding environment, uses less water, produces less water stains, causes less loss to the fire point, the water mist particle diameter is very small, has the effects of cooling, purifying smoke and shielding heat radiation, and is convenient for the escape of trapped personnel and the development of fire fighting work.

[0019] 3. The mobile water mist trolley fire extinguishing device, when the monitored power is higher than 5V, the relay acts, the common end and the normally closed end are disconnected, when the monitored power is lower than 5V, the relay is not attracted, the common end and the normally closed end send a closing signal, and remote transmission of the power shortage signal is realized. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a side view structure schematic view of the utility model;

[0021] Figure 2 It is a front view structure schematic view of the utility model;

[0022] Figure 3 It is a rear view structure schematic view of the utility model;

[0023] Figure 4 It is a structure schematic view of the water tank of the utility model;

[0024] Figure 5 It is a schematic view of the power monitoring module of the utility model.

[0025] In the diagram: 1. Trolley frame; 2. Wheels; 3. Winding reel; 4. Protective plate; 5. Fine water mist gun; 6. Diesel engine pump set; 7. Casters; 8. Pressure gauge; 9. Water tank; 10. Lifting rod; 11. Float; 12. Snap ring; 13. Switch signal sensor. Detailed Implementation

[0026] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0027] Example 1

[0028] like Figures 1 to 5 As shown, a mobile fine water mist trolley fire extinguishing device includes a trolley frame 1, a diesel engine pump set 6 is fixedly connected to one side of the inside of the trolley frame 1, a water tank 9 is provided on the outside of the trolley frame 1, a fine water mist gun 5 is fixedly connected to the output end of the diesel engine pump set 6, and a water level early warning monitoring mechanism is provided inside the water tank 9.

[0029] like Figure 4 As shown, the water level early warning monitoring mechanism includes a lifting rod 10 fixedly connected to one side of the inside of the water tank 9, a float 11 slidably connected to the lifting rod 10, a retaining ring 12 set above and below the float 11, and a switch signal sensor 13 connected to the retaining ring 12 below.

[0030] The distance between the two retaining rings 12 is greater than the height of the float 11. The float 11 experiences buoyancy greater than its own weight in the water. The height of the lower retaining ring 12 is matched with the warning water level of the water tank 9. When the switch signal sensor 13 detects that the lower retaining ring 12 is under pressure from the float 11, it sends a water level warning signal to the control center. By setting a water level warning monitoring mechanism composed of float 11, retaining ring 12 and other structures in the water tank, when the water level in the water tank 9 drops to the height of the lower retaining ring 12, the float falls and contacts the lower retaining ring 12. When the switch signal sensor 13 detects that the retaining ring 12 is released from the float 11, it sends a water level warning signal to the control center, realizing remote monitoring of the water level in the water tank. When the water level is insufficient, it can be detected in time to avoid the fire extinguishing device being affected by insufficient water level.

[0031] Furthermore, the height of the retaining spring 12 is adjustable. The position of the lower retaining spring 12 can be adjusted as needed, while keeping the lower retaining spring connected to the switch signal sensor 13. This allows for adjustment of the monitored warning water level. The retaining spring 12 is engaged with the lifting rod 10, so the retaining spring 12 can be engaged at any height of the lifting rod 10 to achieve height adjustment.

[0032] Example 2

[0033] like Figures 1 to 3 As shown, the diesel engine pump set 6 includes a diesel engine and a high-pressure pump fixedly connected inside the trolley frame 1. The diesel engine drives the high-pressure pump to pump water for fire extinguishing. The low-pressure water inlet of the high-pressure pump is connected to the water tank 9 through a hose, and the high-pressure water outlet of the high-pressure pump is connected to the fine water mist gun 5. The diesel engine pump set 6 draws water from the water tank 9, pressurizes it, and sprays water mist from the fine water mist gun 5. The fine water mist uses water as a fire extinguishing agent, which is green and environmentally friendly and does not harm the human body or the surrounding environment. Using fine water mist for fire extinguishing requires less water, produces less water stains, and causes less damage to the fire point. The fine water mist has a very small particle diameter, which has the functions of cooling, purifying smoke, and shielding heat radiation, making it easier for trapped personnel to escape and for firefighting work to be carried out. In addition, the fine water mist has good electrical insulation properties and can effectively extinguish some fires involving electrical equipment.

[0034] Among them, the high-pressure pump adopts a three-plunger high-pressure pump, which can generate high pressure to meet the working scenarios with high pressure requirements. Due to the alternating work of the three plungers, the liquid discharge flow is relatively stable and fluctuations are reduced. The design of the three-plunger high-pressure pump enables it to maintain a stable working state under high pressure environment. Through the alternating movement of the plungers, the three-plunger high-pressure pump can reduce the pulsation of liquid flow and resist the influence of disturbances from fluid pipelines. The three-plunger high-pressure pump has a compact structure, small footprint, and is suitable for occasions with limited space. It is easy to carry and can be installed in the trolley frame 1 and its position can be adjusted as needed.

[0035] Furthermore, the high-pressure pump is equipped with a pressure regulating valve at its high-pressure outlet. The pressure regulating valve is used to regulate the output high-pressure water, thereby controlling the distance and volume of the output water mist. This allows the fire extinguishing water mist to be sprayed at the desired fire point as needed, improving fire extinguishing efficiency and fully utilizing the fire extinguishing water in the water tank.

[0036] like Figure 3 As shown, a reel 3 is rotatably connected to one side of the diesel engine pump set 6. The high-pressure water outlet of the diesel engine pump set 6 is connected to the fine water mist gun 5 through a high-pressure hose. By setting a high-pressure hose between the diesel engine pump set 6 and the fine water mist gun 5, the orientation and position of the fine water mist gun 5 can be adjusted by adjusting the state of the high-pressure hose. This allows the device to adjust the emission point and direction of the fine water mist according to the actual situation when extinguishing a fire, enabling precise extinguishing of the fire at the ignition point. The reel 3 facilitates the winding up of excess high-pressure hose, making the storage and organization of the high-pressure hose more convenient and avoiding the situation where the high-pressure hose is too long and inconvenient to transport and store.

[0037] like Figures 1 to 3As shown, the rear end of the bottom of the trolley frame 1 is provided with wheels 2, and the front end of the bottom of the trolley frame 1 is provided with universal wheels 7, the bottom height of the wheels 2 and the universal wheels 7 is equal, by setting the universal wheels 7 and the wheels 7 on the front and rear two sections of the trolley frame 1, the whole fire extinguishing device can be pushed like a trolley to adjust the position, which is convenient for adjusting the fire extinguishing position according to the needs in the fire extinguishing work, and fully plays the fire extinguishing effect.

[0038] As shown in the figure, Figure 1 As shown, the two sides of the trolley frame 1 are equipped with protective plates 4, and one side of the protective plate 4 is provided with a pressure gauge 8, and the sensing end of the pressure gauge 8 is communicated with the water outlet end of the diesel engine pump set 6, by setting the protective plates 4 on the two sides of the trolley frame 1, the two sides of the diesel engine pump set 6 are protected, the noise generated by the diesel engine pump set during operation is reduced, and the output water pressure is monitored in real time by the pressure gauge 8, which is convenient for adjusting the output water pressure according to the needs.

[0039] Example 3

[0040] As shown in the figure, Figure 5 As shown, the inside of the trolley frame 1 is provided with a storage battery, and the inside of the frame is provided with a power monitoring module, the power monitoring module is electrically connected with the storage battery, the storage battery supplies power for the power monitoring module and the diesel engine pump set 6 control module, by monitoring the voltage of the storage battery, when the monitored power is higher than 5V, the relay acts, the common end and the normally closed end are disconnected, when the monitored power is lower than 5V, the relay is not attracted, the common end and the normally closed end send a closing signal, realizing the remote transmission of the power failure signal.

[0041] The working principle of the utility model is as follows:

[0042] Water is used as fire extinguishing medium, and special water mist gun is used to decompose water flow into micron-sized fine water droplets under the working of special high pressure to cover local fire, and the water mist realizes fire extinguishing in the process of gasification by high-efficiency heat absorption cooling and rapid suffocation, a mobile fire extinguishing device, the device is provided with a water tank and a power source, can independently complete the fire extinguishing task in various places, and has a water replenishing interface, so that the continuous working capacity is greatly improved.

Claims

1. A mobile water mist trolley fire extinguishing device, comprising a trolley frame (1), a diesel engine pump group (6) is fixedly connected to one side of the inside of the trolley frame (1), and a water tank (9) is arranged on one side of the outside of the trolley frame (1), characterized in that: The output end of the diesel engine pump group (6) is fixedly connected with a water mist gun (5), and the inside of the water tank (9) is provided with a water level early warning monitoring mechanism. The water level early warning monitoring mechanism comprises a lifting rod (10) fixedly connected to one side of the inside of the water tank (9), a floating ball (11) slidingly connected to the lifting rod (10), snap springs (12) arranged above and below the floating ball (11), and an on-off signal sensor (13) connected with the lower snap spring (12). The distance between the two snap springs (12) is greater than the height of the floating ball (11), the floating ball (11) is subjected to a buoyant force greater than its own gravity in water, the height of the lower snap spring (12) is matched with the early warning water level height of the water tank (9), and the on-off signal sensor (13) sends a water level early warning signal to the control center when detecting that the lower snap spring (12) is subjected to the pressure of the floating ball (11).

2. The mobile water mist trolley fire extinguishing apparatus according to claim 1, characterized in that: The diesel engine pump group (6) comprises a diesel engine and a high-pressure pump fixedly connected to the inside of the trolley frame (1), the diesel engine drives the high-pressure pump to pump water for fire extinguishing, the low-pressure water inlet end of the high-pressure pump is communicated with the water tank (9) through a hose, and the high-pressure water outlet end of the high-pressure pump is communicated with the water mist gun (5).

3. The mobile water mist trolley fire extinguishing apparatus according to claim 1, wherein: One side of the diesel engine pump group (6) is rotatably connected with a reel (3), and the high-pressure water outlet end of the diesel engine pump group (6) is communicated with the water mist gun (5) through a high-pressure hose.

4. The mobile water mist cart extinguishing apparatus of claim 1, wherein: The rear end bottom of the trolley frame (1) is provided with wheels (2) on both sides, the front end bottom of the trolley frame (1) is provided with universal wheels (7) on both sides, and the bottom heights of the wheels (2) and the universal wheels (7) are equal.

5. The mobile water mist cart extinguishing apparatus of claim 1, wherein: Both sides of the trolley frame (1) are provided with protective plates (4), one side of the protective plate (4) is provided with a pressure gauge (8), and the sensing end of the pressure gauge (8) is communicated with the water outlet end of the diesel engine pump group (6).

6. A mobile water mist trolley fire extinguishing apparatus according to claim 5, wherein: The inside of the trolley frame (1) is provided with a storage battery, the inside of the trolley frame is provided with a power supply monitoring module, the power supply monitoring module is electrically connected with the storage battery, and the storage battery supplies power to the power supply monitoring module and the control module of the diesel engine pump group (6).

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