Automatic fire extinguishing system applied to vehicle-mounted flammable and explosive refrigerant

Abstract

The utility model relates to the technical field of vehicle-mounted fire fighting, and belongs to an automatic fire fighting system applied to vehicle-mounted flammable and explosive refrigerants. Which comprises an expansion kettle, an air-conditioning system and an external controller, and is characterized in that the expansion kettle is arranged above the air-conditioning system, a fire-fighting spraying unit is arranged on the lower portion of the expansion kettle, and the upper portion of the expansion kettle is connected with a communicating pipe used for communicating with a water pump of a vehicle; and the fire-fighting spraying unit comprises a spraying mechanism and a rotary driving mechanism. The expansion kettle capable of storing fire fighting water is arranged on the vehicle-mounted air conditioning system, the fire fighting water in the expansion kettle can be sprayed through the spraying mechanism, fire extinguishing and fire fighting can be effectively achieved in time, the rotary driving mechanism and the spraying mechanism are used in cooperation, rotary spraying can be achieved, the fire fighting spraying range is enlarged, and the fire fighting efficiency is improved. The fire fighting capacity is improved, and the safety of the vehicle-mounted refrigerant in use is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle-mounted fire fighting, and belongs to an automatic fire fighting system applied to vehicle-mounted flammable and explosive refrigerants. Background Art

[0002] Existing technology solutions for vehicle refrigerants mostly use R134a, with a smaller number using R1234YF and R410A. Compared to these refrigerants, R290 has a global warming potential (GWP) of 3 and an ozone depletion potential (ODP) of 0. It neither harms the ozone layer nor contributes to the greenhouse effect, making it a completely environmentally friendly refrigerant. With increasingly stringent global environmental regulations, the promotion of R290 is imperative.

[0003] However, R290 refrigerant is a flammable and explosive gas, posing a certain explosion hazard. Therefore, the refrigerant usage should be reduced to minimize the risk. Generally, the refrigerant weight in a system is controlled to less than 150g to reduce the risk of use. Although the total refrigerant capacity is reduced, R290 is still a flammable and explosive gas. Leakage in vehicles still poses a risk of explosion and fire, making its use less safe. Utility Model Content

[0004] In order to solve the above technical problems, the present invention provides an automatic fire-fighting system for vehicle-mounted flammable and explosive refrigerants.

[0005] In order to achieve the above purpose, the present invention provides the following technical solutions:

[0006] The present application provides an automatic fire-fighting system for vehicle-mounted flammable and explosive refrigerants, comprising an expansion kettle, an air-conditioning system, and an external controller. The system is characterized in that the expansion kettle is arranged above the air-conditioning system, a fire-fighting spray unit is provided at the lower part of the expansion kettle, a connecting pipe for connecting the vehicle's own water pump is connected to the upper part of the expansion kettle, and the fire-fighting spray unit comprises a spraying mechanism and a rotating drive mechanism.

[0007] Preferably, the spraying mechanism includes a micro pump, an adapter ring, a rotating connecting pipe and a cavity placement plate. The micro pump is arranged inside the expansion kettle. A central control pipe is connected to the bottom of the expansion kettle. The upper end of the central control pipe is connected to the output end of the micro pump. The central control pipe is fixedly connected to the expansion kettle. The adapter ring is movably connected to the bottom end of the central control pipe. The upper end of the rotating connecting pipe is movably connected to the adapter ring. The lower end of the rotating connecting pipe is connected to the connection port of the cavity placement plate.

[0008] Preferably, the micro pump is electrically connected to an external controller, a temperature sensor is arranged on the air-conditioning system, and the temperature sensor is electrically connected to the external controller.

[0009] Preferably, a plurality of mounting holes are provided on the cavity placement plate, and the mounting holes are connected to the spray heads in a one-to-one correspondence.

[0010] Preferably, the rotation drive mechanism includes a drive motor, which is fixedly connected to the bottom of the expansion kettle through a mounting base, and the output end of the drive motor is connected to a transmission shaft through a coupling, and a first bevel gear is connected to the transmission shaft through an axial hole, and a second bevel gear is connected to the rotating connecting tube through an axial hole, and the first bevel gear and the second bevel gear are connected by gear meshing.

[0011] Preferably, the drive motor is electrically connected to an external controller.

[0012] Preferably, a fastening connection seat is connected to the outside of the expansion kettle.

[0013] Compared with the existing technology, this utility model provides an automatic fire extinguishing system for vehicle-mounted flammable and explosive refrigerants, which has the following beneficial effects:

[0014] The utility model provides an expansion water bottle for storing fire water on the vehicle air conditioning system. The fire water in the expansion water bottle can be sprayed through the spraying mechanism, which can timely and effectively realize fire extinguishing. The rotary drive mechanism is used in conjunction with the spraying mechanism to realize rotary spraying, thereby increasing the fire spraying range, improving the fire fighting capability, and increasing the safety of the vehicle refrigerant when in use.

[0015] The features and advantages of the present invention will be described in detail through embodiments with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is a structural diagram of the spraying mechanism of the utility model;

[0018] Figure 3 This is a schematic structural diagram of the rotary drive mechanism of the utility model;

[0019] Figure 4 This is a connection diagram of the utility model;

[0020] In the figure: 1. Expansion kettle; 2. Air conditioning system; 3. Fire sprinkler unit; 4. Connecting pipe; 5. Spraying mechanism; 6. Rotating drive mechanism; 7. External controller; 11. Fastening connector; 21. Temperature sensor; 51. Micro pump; 52. Central control pipe; 53. Adapter ring; 54. Rotating connecting pipe; 55. Cavity placement plate; 551. Mounting hole; 552. Spray head; 61. Drive motor; 62. Mounting seat; 63. Transmission shaft; 64. First bevel gear; 65. Second bevel gear. DETAILED DESCRIPTION

[0021] To make the purpose, technical solutions, and advantages of this utility more clearly understood, the utility is further described in detail below with reference to the accompanying drawings and examples. However, it should be understood that the specific embodiments described herein are merely for the purpose of explaining this utility and are not intended to limit the scope of this utility. In addition, descriptions of well-known structures and technologies are omitted in the following description to avoid unnecessary confusion in the concepts of this utility.

[0022] See Figure 1 、 4 The present invention provides an automatic fire-fighting system for vehicle-mounted flammable and explosive refrigerants, including an expansion kettle 1, an air-conditioning system 2, and an external controller 7. The expansion kettle 1 is arranged above the air-conditioning system 2. A fire-fighting spray unit 3 is provided at the lower part of the expansion kettle 1. A connecting pipe 4 for connecting to the vehicle's own water pump is connected to the upper part of the expansion kettle 1. The fire-fighting spray unit 3 includes a spraying mechanism 5 and a rotating drive mechanism 6.

[0023] See Figure 2 Specifically, the spraying mechanism 5 includes a micro pump 51, an adapter ring 53, a rotating connecting pipe 54 and a cavity placement plate 55. The micro pump 51 is arranged inside the expansion kettle 1. The bottom of the expansion kettle 1 is connected to a central control pipe 52. The upper end of the central control pipe 52 is connected to the output end of the micro pump 51. The central control pipe 52 is fixedly connected to the expansion kettle 1. The adapter ring 53 is movably connected to the bottom end of the central control pipe 52. The upper end of the rotating connecting pipe 54 is movably connected to the adapter ring 53. The lower end of the rotating connecting pipe 54 is connected to the connecting port of the cavity placement plate 55.

[0024] See Figure 4Specifically, the micro pump 51 is electrically connected to the external controller 7. A temperature sensor 21 is arranged on the air-conditioning system 2. The temperature sensor 21 is electrically connected to the external controller 7. Specifically, the external controller 7 is electrically connected to the micro pump 51 and the temperature sensor 21 through a hard wire or a communication signal line to monitor the temperature of the air-conditioning system. When a fire occurs, a high temperature is detected and a high temperature signal is transmitted to the external controller 7. The controller triggers the fire fighting mode, and the external controller 7 sends a start signal to the vehicle motor water pump and the micro pump 51, and at the same time, the fire fighting water is pumped to perform fire fighting operations to achieve the maximum fire fighting purpose.

[0025] See Figure 2 、 Figure 3 Specifically, a plurality of mounting holes 551 are provided on the cavity placement plate 55, and a sprinkler head 552 is connected to each of the mounting holes 551. The sprinkler head 552 is used to increase the pressure at the end of the fire water outlet, so that the fire water spraying range is wider and the fire fighting capability is improved.

[0026] See Figure 3 Specifically, the rotation drive mechanism 6 includes a drive motor 61, which is fixedly connected to the bottom of the expansion kettle 1 through a mounting base 62. The output end of the drive motor 61 is connected to a transmission shaft 63 through a coupling. A first bevel gear 64 is connected to the transmission shaft 63 through a shaft hole. A second bevel gear 65 is connected to the rotating connecting tube 54 through a shaft hole. The first bevel gear 64 and the second bevel gear 65 are connected through gear meshing.

[0027] See Figure 4 Specifically, the drive motor 61 is electrically connected to the external controller 7. The drive motor 61 is also electrically connected to the external controller 7 through a hard wire or a communication signal line. After the external controller 7 receives the high temperature signal detected by the temperature sensor 21, the drive motor 61 is synchronously started. The drive motor 61 is used to provide power to drive the transmission shaft 63 to rotate, thereby driving the first bevel gear 64 connected to the transmission shaft 63 to rotate, and further driving the second bevel gear 65 to rotate through gear meshing, thereby realizing the rotation of the rotating connecting pipe 54, and the cavity placement disk 55 rotates synchronously, realizing rotary spraying, increasing the spraying coverage, and improving the fire extinguishing capability.

[0028] See Figure 3 Specifically, a fastening connection seat 11 is connected to the outside of the expansion kettle 1.

[0029] The working principle of the present invention is as follows: when a fire occurs, the temperature sensor 21 detects high temperature in the area and transmits the high temperature signal to the external controller 7. The external controller 7 synchronously starts the micro pump 51 and the drive motor 61. The micro pump 51 pumps the fire water stored in the expansion kettle 1 into the central control pipe 52 in time, and quickly flows to the sprinkler head 552 through the rotating connecting pipe 54 and the cavity placement plate 55 in turn. The water outlet end is pressurized through the sprinkler head 552, so that the fire water is quickly sprayed out for fire fighting and fire extinguishing. Synchronously, the drive motor 61 provides power to drive the transmission shaft 63 to rotate, thereby driving the first bevel gear 64 connected to the transmission shaft 63 to rotate, and further driving the second bevel gear 65 to rotate through gear meshing, thereby realizing the rotation of the rotating connecting pipe 54, and the cavity placement plate 55 rotates synchronously to realize rotary spraying, increase the spray coverage, and further improve the fire fighting and fire extinguishing capabilities.

[0030] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements or improvements made within the spirit and principles of the present invention shall be included in the scope of protection of the present invention.

Claims

1. An automatic fire extinguishing system for a vehicle-mounted flammable or explosive refrigerant, comprising an expansion kettle (1), an air conditioning system (2), and an external controller (7), characterized in that: The expansion kettle (1) is arranged above the air conditioning system (2), a fire sprinkler unit (3) is provided at the lower portion of the expansion kettle (1), a connecting pipe (4) for connecting to a water pump provided by the vehicle is connected to the upper portion of the expansion kettle (1), and the fire sprinkler unit (3) includes a sprinkler mechanism (5) and a rotary drive mechanism (6).

2. The automatic fire extinguishing system for vehicle-mounted flammable and explosive refrigerants according to claim 1, characterized in that: The spraying mechanism (5) comprises a micro pump (51), an adapter ring (53), a rotating connecting pipe (54) and a cavity placement plate (55). The micro pump (51) is arranged inside the expansion kettle (1). The bottom of the expansion kettle (1) is connected to a central control pipe (52). The upper end of the central control pipe (52) is connected to the output end of the micro pump (51). The central control pipe (52) is fixedly connected to the expansion kettle (1). The adapter ring (53) is movably connected to the bottom end of the central control pipe (52). The upper end of the rotating connecting pipe (54) is movably connected to the adapter ring (53). The lower end of the rotating connecting pipe (54) is connected to a connection port of the cavity placement plate (55).

3. The automatic fire extinguishing system for vehicle-mounted flammable and explosive refrigerants according to claim 2, characterized in that: The micro pump (51) is electrically connected to the external controller (7), and a temperature sensor (21) is arranged on the air conditioning system (2), and the temperature sensor (21) is electrically connected to the external controller (7).

4. The automatic fire extinguishing system for vehicle-mounted flammable and explosive refrigerants according to claim 2, characterized in that: The cavity placement plate (55) is provided with a plurality of mounting holes (551), and the mounting holes (551) are connected to spray heads (552) in a one-to-one correspondence.

5. The automatic fire extinguishing system for vehicle-mounted flammable and explosive refrigerants according to claim 2, characterized in that: The rotary drive mechanism (6) comprises a drive motor (61), the drive motor (61) being fixedly connected to the bottom of the expansion kettle (1) via a mounting base (62), an output end of the drive motor (61) being connected to a transmission shaft (63) via a coupling, a first bevel gear (64) being matched and connected to the transmission shaft (63) via a shaft hole, a second bevel gear (65) being matched and connected to the rotating connecting pipe (54) via a shaft hole, and the first bevel gear (64) and the second bevel gear (65) being connected via gear meshing.

6. The automatic fire extinguishing system for vehicle-mounted flammable and explosive refrigerants according to claim 5, characterized in that: The driving motor (61) is electrically connected to the external controller (7).

7. The automatic fire extinguishing system for vehicle-mounted flammable and explosive refrigerants according to claim 1, characterized in that: A fastening connection seat (11) is connected to the outside of the expansion kettle (1).

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