Extension moving type precise fire extinguishing equipment and process for automobile chassis

Abstract

According to the stretching-in movable type precise fire extinguishing equipment and technology for the automobile chassis, four-side water spraying is carried out on a vehicle on fire through a chassis water spraying frame, two lateral water spraying pipes and water spraying openings in a first fire insulation fence, and the two lateral water spraying pipes are further provided with temperature sensors; when the temperature sensor senses that the temperature reaches a set value, the control assembly controls the first electromagnetic valve, the second electromagnetic valve and the third electromagnetic valve to be closed, liquid is concentrated into the chassis water spraying frame, the water pressure and the water flow in the chassis water spraying frame are increased, and first-time concentrated precise cooling fire extinguishing is achieved; when the temperature sensing spray head on the base plate water spraying frame is close to the ignition center position of the battery, and the temperature is higher than 150 DEG C, pyrolysis blockages in the second water outlet in the temperature sensing spray head are decomposed, and a large amount of cooling liquid is sprayed out of the second water outlet to conduct secondary precise cooling fire extinguishing on the ignition point of the battery.

Description

Technical Field

[0001] The invention belongs to the technical field of automobile fire extinguishing equipment, and in particular relates to a precise fire extinguishing device and process that extends into a mobile automobile chassis. Background Art

[0002] At present, the number of vehicles in society is increasing, the technical accumulation of new energy vehicles is insufficient, and the stability and reliability of the electric system needs to be gradually improved. Once the vehicle catches fire, the open fire on the surface is not easy to deal with, and the difficult-to-observe position of the chassis is not easy to extinguish or cool, which is easy to form an explosion or reignition. The car chassis battery fire generally has the following stages: The first stage: 80℃~120℃: Within this temperature range, the solid electrolyte membrane (SEI) in the battery begins to decompose; the second stage: 150℃~270℃: The diaphragm closes, shrinks and decomposes, the positive and negative electrodes are short-circuited, and the negative electrode and the electrolyte are The carbonate solvent in the battery reacts with the side reaction to generate lithium carbonate, ethylene, ethane and propane, etc., releasing a large amount of heat, and the temperature of the lithium-ion battery continues to rise; the third stage: 170℃~450℃, the safety valve opens and the gas is ejected. At high temperature, many reactions will occur in the battery, producing a variety of gases. The internal pressure of the battery continues to increase, and the ejected gas will ignite and explode. The ejected gas contains a large amount of flammable gas. When it encounters air and the temperature reaches the ignition point or there is an ignition source, the combustion conditions are met, and it will catch fire and release a large amount of heat. The temperature can be as high as 900℃.

[0003] The existing vehicle chassis fire extinguishing device generally performs cooling and fire extinguishing at the first stage or the start of the second stage, and generally sprays the chassis through a fire hydrant or a fire extinguisher. This fire extinguishing method has low fire extinguishing efficiency, cannot perform accurate fire extinguishing, and has a low safety factor for operators. In view of this, this solution was created. Summary of the invention

[0004] In view of the deficiencies in the prior art, the technical problem to be solved by the present invention is to provide a precise fire extinguishing device and process that extends into a mobile automobile chassis, which can isolate the two sides of the burning vehicle to prevent the flame from spreading, and accurately extinguish the fire and cool the chassis.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is: a precise fire extinguishing device extending into a mobile automobile chassis, comprising a mobile integrated box, a chassis water spray frame, two lateral water spray pipes, a first fire barrier, two second fire barriers and a temperature sensing control system.

[0006] The chassis water spray frame is connected to the lower end of the surface of the mobile integrated box and flipped toward one side of the mobile integrated box, and the two side water spray pipes are connected to the lower end of the surface of the mobile integrated box and are located on both sides of the chassis water spray frame, and the side water spray pipes are flipped toward one side of the mobile integrated box;

[0007] The first fire barrier is connected to the side of the mobile integrated box body facing the chassis water spray frame, and the two second fire barriers are respectively connected to two lateral water spray pipes; the chassis water spray frame, the lateral water spray pipes, the first fire barrier, and the two second fire barriers are provided with nozzle interfaces;

[0008] The temperature sensing control system includes two groups of temperature sensors, a first solenoid valve, a second solenoid valve, a third solenoid valve and a control component. The first solenoid valve is used to control the connection between the lateral water spray pipe and the water tank in the mobile integrated box, the second solenoid valve is used to control the connection between the second fire barrier and the water tank in the mobile integrated box, and the third solenoid valve is used to control the connection between the first fire barrier and the water tank in the mobile integrated box; the two groups of temperature sensors are embedded in the circumference of the lateral water spray pipe and face the side of the chassis water spray frame. When the control component detects that the temperature detected by the temperature sensor reaches the set value, it drives the first solenoid valve, the second solenoid valve and the third solenoid valve to close.

[0009] Furthermore, a temperature-sensing nozzle is installed on the nozzle interface located on the chassis water spray frame, and the temperature-sensing nozzle includes a nozzle body. The upper circumferential surface of the nozzle body includes an annular inclined surface and a horizontal surface. The annular inclined surface surrounds the horizontal surface. A plurality of first liquid spray outlets arranged at annular intervals are arranged on the annular inclined surface. A plurality of second liquid spray outlets arranged at annular intervals and a third liquid spray outlet located between the plurality of second liquid spray outlets are provided on the horizontal surface. A water passage cavity is provided in the nozzle body, and the first liquid spray outlet, the second liquid spray outlet and the third liquid spray outlet are connected to the water passage cavity, and a pyrolysis blockage is blocked at the upper opening of the second liquid spray outlet.

[0010] Furthermore, the pyrolysis blockage material is made of polyvinyl chloride, polyethylene or polyoxymethylene.

[0011] Furthermore, the opening of the second liquid spraying port located in the water passage cavity is an expanded opening.

[0012] Furthermore, the first fire barrier includes a first frame, a first water outlet pipe is arranged in the middle of the first frame, the water outlet is located on the first water outlet pipe, a fire blanket is laid on the side of the first frame facing the mobile integrated box, and first legs are arranged on both sides of the lower end of the first frame, the first legs are fixedly connected to the mobile integrated box and are used to connect the waterway.

[0013] Furthermore, the second fire barrier includes a second frame, a fire blanket is laid on the outward side of the second frame, second legs are arranged on both sides of the lower end of the second frame, and the second legs are hinged to the lateral water spray pipe; a second water outlet pipe is formed in the middle of the second frame, and a water passage is formed between the second leg close to the side of the mobile integrated box and the inside of the second water outlet pipe, a plurality of second extension pipes are formed on the circumferential surface of the second water outlet pipe, and a nozzle interface is provided on the circumferential surface of the second extension pipe, and the nozzle interface faces the side of the chassis water spray frame.

[0014] Furthermore, a first water inlet is formed on the peripheral surface of the lateral water spray pipe, and a first water outlet is provided on the mobile integrated box, and the first water inlet and the first water outlet are connected through a high temperature resistant water pipe;

[0015] A second water inlet is formed on the second fire barrier, and a second water outlet is provided on the movable integrated box. The second water inlet and the second water outlet are connected through a high temperature resistant water pipe.

[0016] A third water inlet is formed on the chassis water spray frame, and a third water outlet is arranged on the mobile integrated box; the third water inlet and the third water outlet are connected through a high temperature resistant water pipe.

[0017] Furthermore, the chassis water spray rack includes multiple first water spray pipes, water inlet pipes and connecting pipes, one end of the multiple first water spray pipes is connected to the water inlet pipe, the other end of the multiple first water spray pipes is connected to the connecting pipe, and multiple first water spray pipes are formed with multiple nozzle interfaces arranged at intervals.

[0018] A precise fire extinguishing process for extending into a mobile vehicle chassis, using a precise fire extinguishing device extending into a mobile vehicle chassis for fire extinguishing, comprising the following steps:

[0019] S1. Expand the chassis water spray frame, the side water spray pipes and the second fire barrier, open each valve, and drive the mobile integrated box to move toward the target vehicle until the chassis water spray frame extends into the vehicle chassis, and the two side water spray pipes and two fire barriers are expanded on both sides of the vehicle;

[0020] S2, the chassis water spray frame, the side water spray pipe, the sprinklers connected to the sprinkler interfaces on the first fire barrier and the second fire barrier, and the temperature-sensing sprinklers spray water;

[0021] S3. The temperature sensors sense the temperature on both sides of the vehicle. When the temperature sensors on both sides of the vehicle sense that the temperature reaches or exceeds the set value, the control component controls the first solenoid valve, the second solenoid valve and the third solenoid valve to close, increase the water pressure and spray volume of the chassis water spray frame, and perform the first centralized cooling.

[0022] S4, when the temperature-sensing nozzle located on the bottom basin water spray frame is close to the battery fire site and the temperature is higher than 150 degrees Celsius, the pyrolysis blockage in the second water outlet on the temperature-sensing nozzle is pyrolyzed by high temperature, and the second water outlet sprays water to perform a second centralized cooling;

[0023] S5. When the fire source is suppressed, the first solenoid valve, the second solenoid valve and the third solenoid valve are opened, and the chassis water spray frame, the side water spray pipe, the first fire barrier and the second fire barrier are all opened to spray water to cool the vehicle. The water spraying time is 10-15 minutes; when the fire source is not effectively suppressed and spreads, the pyrolysis blockages on the multiple temperature-sensing nozzles on the bottom basin water spray frame are pyrolyzed at high temperature in turn, and the temperature-sensing nozzles on the bottom basin water spray frame spray water at a high flow rate to cool down.

[0024] Further, the setting value of the sensed temperature in the temperature sensor in step S3 is 90 degrees Celsius to 100 degrees Celsius.

[0025] Compared with the prior art, the present invention has the following beneficial effects:

[0026] 1. The present invention provides a precise fire extinguishing device and process that extends into a mobile automobile chassis. The chassis water spray frame, two lateral water spray pipes and the water spray port on the first fire barrier spray water on all sides of the vehicle on fire. The chassis water spray frame is used to suppress the fire source and reduce the temperature. The lateral water spray pipe is used to reduce the temperature on both sides of the vehicle to prevent the fire source from spraying out. The water spray port of the first fire barrier can ensure that the temperature on one side of the mobile integrated box is reduced, reducing the safety hazards of operators. The first fire barrier and two second fire barriers are set to ensure that when the fire is large, the flame will not splash to the outside of the first fire barrier and the two second fire barriers, so that the entire The fire extinguishing process is safer, and in this solution, temperature sensors are also provided on the two lateral water spray pipes. When the temperature sensor senses that the temperature has reached the set value, the control component controls the first solenoid valve, the second solenoid valve and the third solenoid valve to close, and the liquid is concentrated in the chassis water spray frame. The water pressure in the chassis water spray frame increases, and the water flow rate increases, thereby realizing the first centralized and precise cooling and fire extinguishing. When the temperature-sensing nozzle on the chassis water spray frame is close to the center of the battery fire and the temperature is greater than 150 degrees Celsius, the pyrolysis blockage in the second water outlet on the temperature-sensing nozzle is decomposed, and a large amount of coolant is sprayed from the second water outlet to perform secondary precise cooling and fire extinguishing on the battery fire point.

[0027] 2. The opening of the second water outlet in the water passage cavity is expanded, which can increase the water pressure of the coolant sprayed from the second water outlet. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a three-dimensional structural schematic diagram of a semi-enclosed foldable and movable automobile fire extinguishing equipment of the present invention;

[0029] Figure 2 It is a schematic diagram of a three-dimensional structure of another aspect of the present invention;

[0030] Figure 3 It is a schematic diagram of the three-dimensional structure of the lateral water spray pipe and the second fire barrier in the present invention;

[0031] Figure 4 It is a three-dimensional structural schematic diagram of the chassis water spray frame in the present invention;

[0032] Figure 5 It is a schematic diagram of the three-dimensional structure of the third pulley in the present invention;

[0033] Figure 6 It is a schematic diagram of the three-dimensional structure of the hinged joint of the fifth hinged seat and the sixth hinged seat in the present invention;

[0034] Figure 7 Schematic diagram of the three-dimensional structure of the hinge between the first hinge seat and the second hinge seat in the present invention

[0035] Figure 8 Schematic diagram of the three-dimensional structure of the connecting parts in the present invention

[0036] Fig. 9 A schematic diagram of the maximum coverage range of the spray liquid when the atomizing nozzle and the temperature sensing nozzle are arranged in a transversely inclined manner in the present invention;

[0037] Fig.10 A schematic diagram of the maximum coverage of the spray liquid when the atomizing nozzle and the temperature sensing nozzle are vertically inclined in the present invention;

[0038] Fig.11 It is a schematic diagram of the maximum coverage range of the spray liquid in the present invention when the atomizing nozzle and the temperature sensing nozzle are arranged in a horizontally inclined and vertically inclined manner;

[0039] Fig.12 It is a schematic diagram of the spray path and maximum range of the temperature-sensing nozzle after the nozzle is installed obliquely in the present invention;

[0040] Fig.13 It is a schematic diagram of the three-dimensional structure of the temperature-sensing nozzle of the present invention;

[0041] Fig.14 It is a schematic cross-sectional structure diagram of the temperature-sensing nozzle of the present invention;

[0042] Fig.15 It is a schematic diagram of the control principle of the temperature sensor, control assembly and each solenoid valve in the present invention.

[0043] Markings in the figure: 1. Mobile integrated box; 11. Base; 12. Second articulated seat; 13. Sixth articulated seat; 14. Reinforcement plate; 141. Second pulley; 15. First water outlet; 16. Second water outlet; 17. Third water outlet; 18. Connecting pipe; 19. L-shaped reinforcement plate; 2. Chassis water spray frame; 21. First water spray pipe; 211. Third extension pipe; 22. Water inlet pipe; 221. Third water inlet; 222. Fifth articulated seat; 23. Connecting pipe; 231. Mounting plate; 232. Third pulley; 3. Lateral water spray pipe; 31. First water inlet; 32. First extension pipe; 33. First pulley; 34. First articulated seat; 35. Third articulated seat; 4. First fire barrier; 4 1. First frame; 42. First support leg; 43. First water outlet pipe; 431. Water outlet; 44. Clamping column; 441. Clamping claw; 5. Second fire barrier; 51. Second frame; 511. Second support leg; 52. Second water outlet pipe; 53. Second extension pipe; 54. Fourth hinge seat; 55. Second water inlet; 6. Atomizing nozzle; 7. Fire blanket; 8. Connecting component; 81. Connecting piece; 82. Connecting sleeve; 83. U-shaped clamp; 9. Temperature sensor; 10. Temperature sensing nozzle; 101. Annular slope; 102. Horizontal surface; 103. First liquid spray outlet; 104. Second liquid spray outlet; 105. Third liquid spray outlet; 106. Water passage chamber; 107. Expanding; 108. Pyrolysis blockage. DETAILED DESCRIPTION

[0044] In order to make the above features and advantages of the present invention more obvious and easy to understand, embodiments are given below with reference to the accompanying drawings for detailed description as follows.

[0045] like Figure 1-15 As shown, a precise fire extinguishing device extending into a mobile automobile chassis includes a mobile integrated box 1, a chassis water spray frame 2, two lateral water spray pipes 3, a first fire barrier 4, two second fire barriers 5 and a temperature sensing control system.

[0046] The mobile integrated box 1 is driven by a common motor drive method in the prior art, which will not be described in detail. The mobile integrated box 1 is used to place circuit boards, control components, water tanks, water tank valve components and handheld consumers (used for special situations, such as flammable materials catching fire near the vehicle).

[0047] A seat body 11 is formed at the bottom of the side of the integrated box facing the chassis water spray frame 2, and the surface of the seat body 11 is provided with a first water outlet 15, a second water outlet 16 and a third water outlet 17. A first fire barrier 4 is connected to the upper surface of the base, and a water spray interface is provided on the first fire barrier 4, and an atomizing nozzle 6 is installed in the water spray interface. The first fire barrier 4 includes a first frame 41, and two first water outlet pipes 43 arranged at intervals from top to bottom are provided in the middle of the first frame 41. The water spray port 431 is located on the first water outlet pipe 43. A fire blanket 7 is laid on the side of the first frame 41 facing the mobile integrated box 1. The fire blanket 7 adopts a flame retardant blanket commonly used in the prior art. First legs 42 are provided on both sides of the lower end of the first frame 41. The first legs 42 are fixedly connected to the mobile integrated box 1 and are used to connect the waterway. Specifically, a connecting pipe 18 is provided on the upper surface of the seat body 11, and the first legs 42 are connected to and communicated with the connecting pipe 18.

[0048] Two lateral water spray pipes 3 are connected to the lower end of the surface of the mobile integrated box 1 and are located on both sides of the chassis water spray frame 2. The lateral water spray pipes 3 are turned toward one side of the mobile integrated box 1. A first water inlet 31 is formed on the circumference of the lateral water spray pipe 3. A first water outlet 15 is provided on the mobile integrated box 1. The first water inlet 31 and the first water outlet 15 are connected through a high-temperature resistant water pipe. Specifically, a plurality of first extension pipes 32 are provided on the upper surface of the lateral water spray pipe 3 at intervals. The number of first extension pipes 32 can be 4-6. The circumference of the first extension pipe 32 has a nozzle interface, which faces one side of the chassis water spray frame 2. Preferably, the nozzle interface is inclined, and when the nozzle is installed, the water spraying area can be increased. The nozzle interface is used to install the atomizing nozzle 6.

[0049] A first hinge seat 34 is provided at the end of the lateral water spray pipe 3, a second hinge seat 12 is provided below the side of the mobile integrated box 1 facing the lateral water spray pipe 3, the second hinge seat 12 is provided on the side of the seat body 11, the first hinge seat 34 and the second hinge seat 12 are hinged, and an L-shaped reinforcement plate 19 is further provided between the second hinge seat 12 and the mobile integrated box 1, one side of the L-shaped reinforcement plate 19 is connected to the upper surface of the second hinge seat 12, and the other side of the L-shaped reinforcement plate 19 is connected to the upper surface of the seat body 11. A first pulley 33 is formed on the lower surface of the outward end of the lateral water spray pipe 3.

[0050] The two second fire barriers 5 are respectively rotatably connected to the surfaces of the two lateral water spray pipes 3 and flipped toward the side of the chassis water spray frame 2. The second fire barrier 5 includes a second frame body 51. The second frame body 51 is paved with a fire blanket 7 on the outward side. Second legs 511 are arranged on both sides of the lower end of the second frame body 51. The second legs 511 are hinged to the lateral water spray pipes 3. Specifically, third hinge seats 35 are arranged on both sides of the upper surface of the lateral water spray pipes 3. A fourth hinge seat 54 is arranged at the lower end of the second legs 511. The third hinge seat 35 and the fourth hinge seat 54 are hinged to each other. A second water outlet pipe 52 is formed in the middle of the second frame 51, and a reinforcing rib is arranged between the second water outlet pipe 52 and the bottom of the second frame 51, and a water passage is formed inside the second leg close to the side of the mobile integrated box 1 and the second water outlet pipe 52, and a plurality of second extension pipes 53 are formed on the circumference of the second water outlet pipe 52, and the circumference of the second extension pipe 53 has a nozzle interface, and the nozzle interface faces the side of the chassis water spray frame 2, and an atomizing nozzle 6 is arranged at the nozzle interface, and a second water inlet 55 is formed on the second leg, and the second water inlet 55 is connected to the water passage, and a second water outlet 16 is arranged on the mobile integrated box 1, and the second water inlet 55 and the second water outlet 16 are connected by a high-temperature resistant water pipe.

[0051] Preferably, an unfolded connecting component 8 is further provided between the first fire barrier 4 and the second fire barrier 5, and the connecting component 8 includes an L-shaped connecting piece 81, a connecting sleeve 82 and a U-shaped clamp. The L-shaped connecting piece 81 includes a horizontal plate and a vertical plate, and the vertical plate is connected to the outward side of the horizontal plate. There are two connecting sleeves 82 and they are connected to the side of the horizontal plate facing the first fire barrier 4. The connecting sleeve 82 is sleeved on the rod body of the first fire barrier 4 and slides. The connecting sleeve 82 and the horizontal plate are hinged to each other. The U-shaped clamp is hinged to one end of the lower surface of the vertical plate. The U-shaped clamp 83 is used to be clamped into the rod body at the upper end of the second fire barrier 5 in the unfolded state, so as to prevent the second fire barrier 5 from turning inward in the unfolded state. After the connecting component 8 is clamped, the degree of freedom F of the second fire barrier 5 is -1, indicating that the clamped second fire barrier 5 is a statically determinate truss, that is, the second fire barrier 5 is well fixed.

[0052] The chassis water spray frame 2 includes three first water spray pipes 21, a water inlet pipe 22 and a connecting pipe 23. One end of the three first water spray pipes 21 is connected to the water inlet pipe 22. A third water inlet 221 is formed on the side wall of the water inlet pipe 22. The third water outlet 17 and the third water inlet 221 are connected through a high temperature resistant water pipe. The water inlet pipe 22 is connected to the first water spray pipe 21. The other ends of the three first water spray pipes 21 are connected to the connecting pipe 23. 4-6 nozzle interfaces are formed on the three first water spray pipes 21 at intervals. Specifically, a third extension pipe 211 extending outward is formed on the side wall of the first water spray pipe 21. The nozzle interface is arranged on the upper surface of the third extension pipe 211. A temperature sensing nozzle 10 is arranged on the nozzle interface.

[0053] The temperature sensing nozzle 10 includes a nozzle body, the upper surface of the nozzle body includes an annular inclined surface 101 and a horizontal surface 102, the annular inclined surface 101 surrounds the horizontal surface 102, a plurality of first liquid spraying ports 103 arranged at annular intervals are arranged on the annular inclined surface 101, a plurality of second liquid spraying ports 104 arranged at annular intervals and a third liquid spraying port 105 located between the plurality of second liquid spraying ports 104 are arranged on the horizontal surface 102, a water passage cavity 106 is provided in the nozzle body, the first liquid spraying port 103, the second liquid spraying port 105 are provided 04 and the third liquid spray port 105 are connected with the water passage chamber 106. The opening of the second liquid spray port 104 located in the water passage chamber 106 is an expansion port 107, which can increase the water pressure of the coolant sprayed from the second water outlet 16. The opening of the second liquid spray port 104 is blocked with a pyrolysis blocker 108. The pyrolysis blocker 108 is made of polyvinyl chloride, polyethylene or polyoxymethylene. Preferably, in this scheme, the material of the pyrolysis blocker 108 is polyethylene, the dissolution temperature is 160 degrees Celsius, and thermal decomposition begins at 130 degrees Celsius.

[0054] Preferably, an external thread is formed at the lower end of the outer circumferential surface of the nozzle body, and an annular sealing groove is formed on the outer circumferential surface of the nozzle body, and the annular sealing groove is located above the external thread.

[0055] The temperature sensing control system includes two groups of temperature sensors 9, a first solenoid valve, a second solenoid valve, a third solenoid valve and a control component. The number of temperature sensors 9 in each group is , and the first solenoid valve is used to control the connection between the lateral water spray pipe 3 and the water tank in the mobile integrated box 1, the second solenoid valve is used to control the connection between the second fire barrier and the water tank in the mobile integrated box 1, and the third solenoid valve is used to control the connection between the first fire barrier and the water tank in the mobile integrated box 1; the two groups of temperature sensors 9 are embedded in the circumference of the lateral water spray pipe 3 and face the side of the chassis water spray frame 2. Specifically, a temperature sensor 9 is embedded in the outer end, the middle part and the inner end of each lateral water spray pipe 3 respectively. When the control component detects that the temperature detected by the temperature sensor 9 reaches the set value, it drives the first solenoid valve, the second solenoid valve and the third solenoid valve to close. When any temperature sensor 9 reaches the set value, the control component controls the first solenoid valve, the second solenoid valve and the third solenoid valve to close.

[0056] Preferably, the control component is a PLC control center. When any temperature sensor 9 reaches the starting temperature, it will send a signal to the PLC control center. After receiving the signal, the PLC control center closes the first solenoid valve, the second solenoid valve and the third solenoid valve, reduces the water outlet holes on both sides, and increases the water output of the chassis spray frame 2 while keeping the water supply pressure of the equipment unchanged.

[0057] like Figure 9-11As shown, the circle and triangle area of ​​the cross section are the spray range, and the matrix dotted line is the schematic area of ​​the battery position; such an arrangement greatly improves the spray range of each nozzle, and the inclination direction of each nozzle is adjusted according to the actual situation. Preferably, each nozzle is inclined, and the inclination angle is 42°-120°. The inclination of each nozzle is achieved by setting an inclined nozzle interface. Fig.12 As shown, the temperature-sensing nozzle 10 is tilted, and the cross section within the triangle is the spraying area, and the water spraying area will be increased.

[0058] In order to ensure the stability of the chassis water spray frame 2 , reinforcing ribs are provided between adjacent first water spray pipes 21 on the same chassis water spray frame 2 .

[0059] The chassis water spray frame 2 is connected to the lower end of the surface of the mobile integrated box 1 and flipped toward one side of the mobile integrated box 1. The water inlet pipe 22 is formed with two spaced fifth hinge seats 222 on the side of the mobile integrated box 1. Two sixth hinge seats 13 are formed on the side of the seat body 11 of the mobile integrated box 1. The fifth hinge seat 222 and the sixth hinge seat 13 are hinged to each other. The storage and placement of the chassis water spray frame 2 can be flipped by manual flipping or motor drive, and it is set according to actual conditions. The first fire barrier 4 is provided with two clamping columns 44 that are rotatably connected to its pipe body. The end face of the clamping column 44 is provided with a clamping claw 441, and a notch is formed on the clamping claw 441. The connecting pipe 23 is fixed by being clamped into the clamping claw 441 from the notch through deformation. A reinforcing plate 14 is fixedly connected to the upper end of the sixth articulated seat 13, and the reinforcing plate 14 is welded to the seat body 11. The reinforcing plate 14 extends toward either side of the sixth articulated seat 13, and stable triangular plates extending upward and downward are respectively formed at both ends of the reinforcing plate 14. A second pulley 141 is arranged on the lower surface of the reinforcing plate 14, and an inwardly extending mounting plate 231 is fixedly connected to the upper surface of the connecting pipe 23, and a third pulley 232 is arranged on the lower surface of the mounting plate 231. A triangular support is formed by the two second pulleys 141 and one third pulley 232, which is convenient for the movement of the chassis water spray frame 2 after placement.

[0060] The folding method of this scheme is as follows: the two second fire barriers 5 are flipped toward the chassis water spray frame 2, and then the chassis water spray frame 2 is flipped toward the mobile integrated box 1 by manpower or motor drive, and the lateral water spray pipe 3 is driven by the flipping of the mobile integrated box 1, and then by rotating the clamping column 44, the connecting pipe 23 on the mobile integrated box 1 is clamped into the clamping claw 441 from the notch of the clamping claw 441 to achieve folding, and the second fire barriers 5 and the lateral water spray pipe 3 are limited between the mobile integrated box 1 and the chassis water spray frame 2.

[0061] The present solution also provides a precise fire extinguishing process for extending into a mobile automobile chassis, and the fire extinguishing is performed using the above-mentioned equipment, comprising the following steps: S1, unfolding the chassis water spray frame 2, the lateral water spray pipe 3 and the second fire barrier 5, opening each valve, and driving the mobile integrated box 1 to move toward the target vehicle until the chassis water spray frame 2 extends into the vehicle chassis, and the two lateral water spray pipes 3 and the two fire barriers are unfolded on both sides of the vehicle;

[0062] S2, chassis water spray frame 2, lateral water spray pipe 3, first fire barrier 4 and second fire barrier 5, the nozzles connected to the nozzle interfaces and the temperature sensing nozzle 10 spray water;

[0063] S3. The setting value of the sensed temperature in the temperature sensor 9 is 90 degrees Celsius-100 degrees Celsius. The temperature sensor 9 senses the temperature on both sides of the vehicle. When the temperature sensors 9 on both sides of the vehicle sense that the temperature reaches or exceeds the set value, the control component controls the first solenoid valve, the second solenoid valve and the third solenoid valve to close, enhance the water pressure and injection volume of the chassis water spray frame 2, and perform the first centralized cooling.

[0064] S4, when the temperature-sensing nozzle 10 on the bottom basin water spray frame is close to the battery fire location and the temperature is higher than 150 degrees Celsius, the pyrolysis blockage 108 in the second water outlet 16 on the temperature-sensing nozzle 10 is pyrolyzed by high temperature, and the second water outlet 16 sprays water to perform a second centralized cooling;

[0065] S5. When the fire source is suppressed, the first solenoid valve, the second solenoid valve and the third solenoid valve are opened, and the chassis water spray frame 2, the lateral water spray pipe 3, the first fire barrier 4 and the sprinklers connected to the sprinkler interfaces on the second fire barrier 5 are all opened to spray water to cool the vehicle, and the spraying time is 10-15 minutes; when the fire source is not effectively suppressed and spreads, the pyrolysis blockages 108 on the multiple temperature-sensing sprinklers 10 on the bottom basin water spray frame are pyrolyzed in turn by high temperature, and the temperature-sensing sprinklers 10 on the bottom basin water spray frame spray water at a high flow rate to cool down.

[0066] This solution uses the chassis water spray frame 2, two lateral water spray pipes 3 and the water spray port 431 on the first fire barrier 4 to spray water on all sides of the vehicle on fire. The chassis water spray frame 2 is used to suppress the fire source and reduce the temperature. The lateral water spray pipes are used to reduce the temperature on both sides of the vehicle to prevent the fire source from spraying out. The water spray port 431 of the first fire barrier 4 can ensure that the temperature on one side of the mobile integrated box 1 is reduced, reducing the safety hazards of operators. The first fire barrier 4 and the two second fire barriers 5 are set to ensure that when the fire is large, the flame will not splash to the outside of the first fire barrier 4 and the two second fire barriers 5, making the entire fire extinguishing process safer, and in this In the scheme, temperature sensors 9 are also provided on the two lateral water spray pipes 3. When the temperature sensor 9 senses that the temperature reaches the set value, the control component controls the first solenoid valve, the second solenoid valve and the third solenoid valve to close, and the liquid is concentrated in the chassis water spray frame 2. The water pressure and the water flow in the chassis water spray frame 2 increase, thereby realizing the first centralized and precise cooling and fire extinguishing. When the temperature-sensing nozzle 10 on the chassis water spray frame 2 is close to the center of the battery fire and the temperature is greater than 150 degrees Celsius, the pyrolysis blockage 108 in the second water outlet 16 on the temperature-sensing nozzle 10 is decomposed, and a large amount of coolant is sprayed from the second water outlet 16 to perform secondary precise cooling and fire extinguishing on the battery fire point.

[0067] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for illustrating the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which shall fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A precise fire extinguishing device that extends into a mobile vehicle chassis, characterized in that: It includes a mobile integrated box, a chassis water spray frame, two lateral water spray pipes, a first fire barrier, two second fire barriers and a temperature sensing control system. The chassis water spray frame is connected to the lower end of the surface of the mobile integrated box and flipped toward one side of the mobile integrated box, and the two side water spray pipes are connected to the lower end of the surface of the mobile integrated box and are located on both sides of the chassis water spray frame, and the side water spray pipes are flipped toward one side of the mobile integrated box; The first fire barrier is connected to the side of the mobile integrated box body facing the chassis water spray frame, and the two second fire barriers are respectively connected to two lateral water spray pipes; the chassis water spray frame, the lateral water spray pipes, the first fire barrier, and the two second fire barriers are provided with nozzle interfaces; The temperature sensing control system includes two groups of temperature sensors, a first solenoid valve, a second solenoid valve, a third solenoid valve and a control component. The first solenoid valve is used to control the connection between the lateral water spray pipe and the water tank in the mobile integrated box, the second solenoid valve is used to control the connection between the second fire barrier and the water tank in the mobile integrated box, and the third solenoid valve is used to control the connection between the first fire barrier and the water tank in the mobile integrated box; the two groups of temperature sensors are embedded in the circumference of the lateral water spray pipe and face the side of the chassis water spray frame. When the control component detects that the temperature detected by the temperature sensor reaches the set value, it drives the first solenoid valve, the second solenoid valve and the third solenoid valve to close.

2. The precise fire extinguishing device extending into a mobile vehicle chassis according to claim 1 is characterized in that: A temperature-sensing nozzle is installed on the nozzle interface located on the chassis water spray frame, and the temperature-sensing nozzle includes a nozzle body. The upper circumferential surface of the nozzle body includes an annular inclined surface and a horizontal surface. The annular inclined surface surrounds the horizontal surface. A plurality of first liquid spray outlets arranged at annular intervals are arranged on the annular inclined surface. A plurality of second liquid spray outlets arranged at annular intervals and a third liquid spray outlet located between the plurality of second liquid spray outlets are provided on the horizontal surface. A water passage cavity is provided in the nozzle body. The first liquid spray outlet, the second liquid spray outlet and the third liquid spray outlet are connected to the water passage cavity, and a pyrolysis blockage is blocked at the upper opening of the second liquid spray outlet.

3. The precise fire extinguishing device extending into a mobile vehicle chassis according to claim 2 is characterized in that: The pyrolysis plugging material is made of polyvinyl chloride, polyethylene or polyoxymethylene.

4. The precise fire extinguishing device extending into a mobile vehicle chassis according to claim 2 is characterized in that: The opening of the second liquid spraying port located in the water passage cavity is an expanded opening.

5. The precise fire extinguishing device extending into a mobile vehicle chassis according to claim 1 is characterized in that: The first fire barrier includes a first frame, a first water outlet pipe is arranged in the middle of the first frame, the water outlet is located on the first water outlet pipe, a fire blanket is laid on the side of the first frame facing the mobile integrated box, and first legs are arranged on both sides of the lower end of the first frame, the first legs are fixedly connected to the mobile integrated box and are used to connect the waterway.

6. The precise fire extinguishing device extending into a mobile vehicle chassis according to claim 1 is characterized in that: The second fire barrier includes a second frame, a fire blanket is laid on the outward side of the second frame, second legs are arranged on both sides of the lower end of the second frame, and the second legs are hinged to the lateral water spray pipe; a second water outlet pipe is formed in the middle of the second frame, and a water passage is formed between the second leg close to the side of the mobile integrated box and the inside of the second water outlet pipe, a plurality of second extension pipes are formed on the circumference of the second water outlet pipe, and a nozzle interface is provided on the circumference of the second extension pipe, and the nozzle interface faces the side of the chassis water spray frame.

7. The precise fire extinguishing device extending into a mobile vehicle chassis according to claim 1 is characterized in that: The lateral water spray pipe is formed with a first water inlet on its circumference, and the mobile integrated box is provided with a first water outlet, and the first water inlet and the first water outlet are connected via a high temperature resistant water pipe; A second water inlet is formed on the second fire barrier, and a second water outlet is provided on the movable integrated box. The second water inlet and the second water outlet are connected through a high temperature resistant water pipe. A third water inlet is formed on the chassis water spray frame, and a third water outlet is arranged on the mobile integrated box; the third water inlet and the third water outlet are connected through a high temperature resistant water pipe.

8. The precise fire extinguishing device extending into a mobile vehicle chassis according to claim 1 is characterized in that: The chassis water spray rack includes multiple first water spray pipes, water inlet pipes and connecting pipes. One end of the multiple first water spray pipes is connected to the water inlet pipe, and the other end of the multiple first water spray pipes is connected to the connecting pipe. Multiple nozzle interfaces are formed on the multiple first water spray pipes at intervals.

9. A precise fire extinguishing process for reaching into a mobile automobile chassis, characterized in that: The fire is extinguished by using a precise fire extinguishing device that extends into a mobile vehicle chassis as described in claim 2, including the following steps: S1. Expand the chassis water spray frame, the side water spray pipes and the second fire barrier, open each valve, and drive the mobile integrated box to move toward the target vehicle until the chassis water spray frame extends into the vehicle chassis, and the two side water spray pipes and two fire barriers are expanded on both sides of the vehicle; S2, the chassis water spray frame, the side water spray pipe, the sprinklers connected to the sprinkler interfaces on the first fire barrier and the second fire barrier, and the temperature-sensing sprinklers spray water; S3. The temperature sensors sense the temperature on both sides of the vehicle. When the temperature sensors on both sides of the vehicle sense that the temperature reaches or exceeds the set value, the control component controls the first solenoid valve, the second solenoid valve and the third solenoid valve to close, increase the water pressure and spray volume of the chassis water spray frame, and perform the first centralized cooling. S4, when the temperature-sensing nozzle located on the bottom basin water spray frame is close to the battery fire site and the temperature is higher than 150 degrees Celsius, the pyrolysis blockage in the second water outlet on the temperature-sensing nozzle is pyrolyzed by high temperature, and the second water outlet sprays water to perform a second centralized cooling; S5. When the fire source is suppressed, the first solenoid valve, the second solenoid valve and the third solenoid valve are opened, and the chassis water spray frame, the side water spray pipe, the first fire barrier and the second fire barrier are all opened to spray water to cool the vehicle. The water spraying time is 10-15 minutes; when the fire source is not effectively suppressed and spreads, the pyrolysis blockages on the multiple temperature-sensing nozzles on the bottom basin water spray frame are pyrolyzed at high temperature in turn, and the temperature-sensing nozzles on the bottom basin water spray frame spray water at a high flow rate to cool down.

10. The precise fire extinguishing process for extending into a mobile automobile chassis according to claim 9, characterized in that: The setting value of the sensed temperature in the temperature sensor in step S3 is 90 degrees Celsius to 100 degrees Celsius.

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