Automatic fire extinguishing device for snowplow

Abstract

The utility model relates to fire extinguishing technology field, concretely relates to a snow blower automatic fire extinguishing device, including fire detection module, carbon dioxide storage module, carbon dioxide release module and control module, control module is connected with fire detection module, carbon dioxide storage module and carbon dioxide release module, and fire detection module includes temperature sensor, smoke sensor and flame sensor, and carbon dioxide storage module includes carbon dioxide storage tank and pressure reducing device, and carbon dioxide release module includes carbon dioxide pipeline, solenoid valve and spray head. The utility model discloses a snow blower automatic fire extinguishing device can quickly, automatically detect the engine fire to the carbon dioxide of timely release and extinguish the fire, and the maximum limit reduces the damage of fire to the engine, simultaneously avoids the additional secondary injury to the engine.

Description

Technical Field

[0001] This utility model relates to the field of fire fighting technology, specifically to an automatic fire fighting device for a snow blower. Background Technology

[0002] During the operation of snow blowers, there is a risk of fire due to various factors such as high temperatures, electrical faults, and fuel leaks. If a fire breaks out in the engine or vehicle body, and is not extinguished promptly and effectively, it can lead to severe property damage and even endanger lives. This is because existing engine fire suppression methods have several shortcomings. For example, manual firefighting is slow, often resulting in the fire spreading by the time it is discovered, making it difficult to control in its early stages. While some existing automatic fire suppression systems, such as dry powder systems, can extinguish fires to some extent, residual dry powder may damage delicate internal engine components, affecting subsequent normal operation and maintenance. Water-based fire suppression systems are unsuitable for engine fires because water may cause electrical short circuits, further exacerbating the damage. Therefore, developing an efficient, rapid, and minimally damaging automatic fire suppression system is of significant practical importance. Utility Model Content

[0003] To address the aforementioned problems, the main objective of this invention is to provide an automatic fire extinguishing device for snow blowers. This device can quickly and automatically detect engine fires and promptly release carbon dioxide to extinguish them, minimizing the damage to the engine and preventing additional secondary damage.

[0004] To achieve the above objectives, this utility model provides an automatic fire extinguishing device for a snow blower, including a fire detection module, a carbon dioxide storage module, a carbon dioxide release module, and a control module. The control module is connected to the fire detection module, the carbon dioxide storage module, and the carbon dioxide release module. The fire detection module includes a temperature sensor, a smoke sensor, and a flame sensor. The carbon dioxide storage module includes a carbon dioxide storage tank and a pressure reducing device. The carbon dioxide release module includes a carbon dioxide pipeline, a solenoid valve, and a nozzle.

[0005] Preferably, it also includes an audible and visual alarm, which is connected to the control module via signal.

[0006] Preferably, the snow blower includes an engine block, oil lines and electrical wiring, and a number of temperature sensors, which are installed on the engine block, oil lines and electrical wiring.

[0007] Preferably, there are several carbon dioxide pipes, solenoid valves and nozzles, with the nozzles located on top of the engine, above the fuel lines and electrical wiring.

[0008] Preferably, the carbon dioxide storage tank stores high-pressure liquid carbon dioxide, and a pressure reducing device is installed at the outlet of the carbon dioxide storage tank.

[0009] Preferably, one end of the carbon dioxide pipeline is connected to a pressure reducing device, and the other end is connected to a nozzle, with a solenoid valve installed on the carbon dioxide pipeline.

[0010] Preferably, the temperature sensor, smoke sensor, and flame sensor are cable sensors, and the fire extinguishing device also includes a manual starter.

[0011] The beneficial effects of this utility model through the above technical solution include: (1) Rapid response: Multiple sensors work together to quickly detect abnormalities in the early stage of engine fire. The control module reacts quickly. The time from the occurrence of fire to the start of carbon dioxide injection is extremely short, which greatly improves the fire extinguishing efficiency and can effectively curb the spread of fire.

[0012] (2) Highly efficient fire extinguishing: Carbon dioxide fire extinguishing has the dual effects of suffocation and cooling, which can quickly extinguish engine fires. Moreover, carbon dioxide is colorless, odorless, and leaves no residue, and will not cause pollution and damage to the precision parts inside the engine like dry powder. This reduces the cleaning and maintenance work after the engine is extinguished, which is conducive to the subsequent repair and normal operation of the engine. (3) High reliability: The dual confirmation mechanism of at least two different types of sensor signals is adopted, which effectively avoids false alarms caused by a single sensor and improves the accuracy and reliability of the system in judging fires. At the same time, the components of the device are simple and stable in structure, with high durability and anti-interference ability, and can work reliably in complex engine operating environments. Attached Figure Description

[0013] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0014] Figure 1 This is a structural schematic diagram of the automatic fire extinguishing device for a snow blower truck according to this utility model.

[0015] Figure 2 This is a diagram showing the usage status of the automatic fire extinguishing device for snow blowers of this utility model.

[0016] Figure 3 This is another perspective of the automatic fire extinguishing device for snow blowers of this utility model in use.

[0017] Explanation of reference numerals in the attached figures 1. Carbon dioxide storage tank; 2. Manual starter; 3. Control module; 4. Audible and visual alarm; 5. Fire detection module; 6. Carbon dioxide pipeline; 7. Nozzle; 8. Engine block; 9. Fuel pipeline. Detailed Implementation

[0018] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Many specific details are set forth in the following description to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0019] like Figures 1-3 The diagram shows the structure of the automatic fire extinguishing device for a snow blower according to this invention. The automatic fire extinguishing device for a snow blower includes a fire detection module 5, a carbon dioxide storage module, a carbon dioxide release module, and a control module 3. The control module 3 is electrically connected to the fire detection module 5, the carbon dioxide storage module, and the carbon dioxide release module. The fire detection module 5 includes a temperature sensor, a smoke sensor, and a flame sensor. The temperature sensor, smoke sensor, and flame sensor are cable-type sensors. The snow blower of this invention includes an engine block 8, oil pipes 9, and electrical wiring. There are several temperature sensors, smoke sensors, and flame sensors, with multiple temperature sensors installed in the engine block 8, oil pipes 9, and other components. The temperature of components prone to heat generation, such as pipelines 9 and electrical wiring, is monitored in real time. When the temperature exceeds the normal operating temperature threshold of the engine, the temperature sensor sends a signal to the control module 3. The smoke sensor is installed at the top of the engine compartment where there is good air circulation and the location of the smoke can be fully monitored, such as the center of the top of the engine compartment. The smoke sensor is used to detect whether smoke is generated. Once the smoke concentration exceeds the set value, it immediately sends a signal to the control module 3. The flame sensor is used to directly detect the presence of flames. By monitoring the flame radiation of a specific wavelength, it quickly sends a signal when a flame is detected. It should be noted that the flame sensor is installed at an angle that can clearly detect the flame in the engine compartment, avoiding obstruction by other components.

[0020] In addition, the control module 3 of this utility model uses a microprocessor as its core to receive signals from the fire detection module 5. When the control module 3 receives alarm signals from at least two different types of sensors (such as temperature sensors and smoke sensors, or smoke sensors and flame sensors, etc.), it confirms the occurrence of a fire through an internal algorithm and immediately issues a control command. This utility model also includes an audible and visual alarm 4, which is signal-connected to the control module 3. After receiving the alarm signal, the control module 3 issues a control command. The control command triggers the audible and visual alarm 4 to issue a fire alarm to people in the surrounding area and activates the carbon dioxide storage module and the carbon dioxide release module.

[0021] Please refer to the attached drawings. The carbon dioxide storage module of this utility model includes a carbon dioxide storage tank 1 and a pressure reducing device. The carbon dioxide storage tank 1 stores high-pressure liquid carbon dioxide to ensure a sufficient supply of extinguishing agent during firefighting. The pressure reducing device is installed at the outlet of the carbon dioxide storage tank 1 to reduce the pressure of the high-pressure liquid carbon dioxide and convert it into gaseous carbon dioxide suitable for spraying. The carbon dioxide release module includes a carbon dioxide pipeline 6, a solenoid valve, and nozzles 7. There are several carbon dioxide pipelines 6, solenoid valves, and nozzles 7. The nozzles 7 are distributed in various key locations in the engine compartment, such as the top of the engine, near the fuel line, and around electrical equipment, to ensure comprehensive coverage of possible ignition points and achieve efficient fire extinguishing. One end of the carbon dioxide pipeline 6 is connected to the pressure reducing device, and the other end is connected to the nozzles 7. The solenoid valve is installed on the carbon dioxide pipeline 6 and receives instructions from the control module 3. When it receives an opening signal, it opens quickly, allowing carbon dioxide to be sprayed through the nozzles 7 towards the fire location on the engine.

[0022] In other embodiments, the fire extinguishing device of this utility model is also equipped with a manual starter 2, which not only has automatic detection and sensing control, but also supports manual control.

[0023] The working principle of this automatic fire extinguishing device for snow blowers is as follows: During engine operation, various sensors in the fire detection module 5 continuously monitor the engine status. When an engine fire occurs, the temperature rises, smoke is produced, or flames appear. The corresponding sensors transmit the detected abnormal signals to the control module 3. The control module 3 comprehensively analyzes and judges these signals. After confirming the fire, it immediately activates the audible and visual alarm 4 and sends an opening command to the solenoid valves of the carbon dioxide storage module and the carbon dioxide release module. The liquid carbon dioxide in the carbon dioxide storage tank 1 is converted into gaseous state after passing through the pressure reducing device. It is then sprayed at high speed from the nozzle 7 through the opened solenoid valve, covering the engine fire area. The carbon dioxide gas can quickly reduce the oxygen concentration in the combustion zone and absorb some heat, thereby achieving the dual effects of suffocation and cooling fire extinguishing, quickly extinguishing the engine fire.

[0024] Furthermore, the control module 3 of this invention is installed outside the engine compartment in a location that is convenient for operation and maintenance, such as inside the vehicle's driver's cab or a conveniently accessible compartment in the engine bay. Based on the engine type, operating parameters, and actual operating environment, the fire detection algorithm and alarm thresholds within the control module 3 are rationally set. For example, appropriate temperature alarm thresholds are set for the normal operating temperature range of different engine models; the smoke concentration alarm threshold of the smoke sensor is adjusted according to the size and ventilation of the engine compartment, ensuring that the control module 3 can accurately and reliably process and judge the signals transmitted from the fire detection module 5. Furthermore, the carbon dioxide storage tank 1 of this invention is a high-pressure vessel that meets relevant safety standards. The capacity of the storage tank is determined based on the size of the engine compartment and the potential scale of a fire. The carbon dioxide storage tank 1 is installed on a fixed bracket to ensure a secure installation and facilitate regular pressure testing and maintenance. The pressure reducing device is tightly connected to the outlet of the carbon dioxide storage tank 1 to ensure a stable and reliable pressure reduction effect. The solenoid valve is installed on the pipeline between the pressure reducing device and the nozzle 7, with correct wiring, and can accurately receive commands from the control module 3. The nozzles 7 are evenly distributed in various key fire risk areas within the engine compartment according to the design scheme, ensuring that the spray angle and coverage meet the fire extinguishing requirements. After installation, the entire carbon dioxide storage module and carbon dioxide release module undergo sealing and pressure tests to ensure the safety and reliability of the system under normal operation and extreme conditions.

[0025] Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

Claims

1. An automatic fire extinguishing device for a snow blower, characterized in that, It includes a fire detection module (5), a carbon dioxide storage module, a carbon dioxide release module and a control module (3). The control module (3) is connected to the fire detection module (5), the carbon dioxide storage module and the carbon dioxide release module. The fire detection module (5) includes a temperature sensor, a smoke sensor and a flame sensor. The carbon dioxide storage module includes a carbon dioxide storage tank (1) and a pressure reducing device. The carbon dioxide release module includes a carbon dioxide pipeline (6), a solenoid valve and a sprinkler head (7).

2. The automatic fire extinguishing device for a snow blower according to claim 1, wherein It further includes an audible and visual alarm (4), and the audible and visual alarm (4) is signal-connected to the control module (3).

3. The automatic fire extinguishing device for a snow blower according to claim 1, wherein, The snow blower includes an engine block (8), an oil pipeline (9) and electrical wiring. The number of the temperature sensors is several, and multiple temperature sensors are installed on the engine block (8), the oil pipeline (9) and the electrical wiring.

4. The automatic fire extinguishing device for a snow blower according to claim 3, characterized in that, The number of the carbon dioxide pipelines (6), the solenoid valves and the sprinkler heads (7) is several, and the sprinkler heads (7) are located above the engine top, the oil pipeline (9) and the electrical wiring.

5. The automatic fire extinguishing device for a snow blower according to claim 1, wherein, The carbon dioxide storage tank (1) stores high-pressure liquid carbon dioxide, and the pressure reducing device is installed at the outlet of the carbon dioxide storage tank (1).

6. The automatic fire extinguishing device for a snow blower according to claim 1, wherein One end of the carbon dioxide pipeline (6) is connected to the pressure reducing device, and the other end is connected to the sprinkler head (7). The solenoid valve is installed on the carbon dioxide pipeline (6).

7. The automatic fire extinguishing device for a snow blower according to any one of claims 1 to 6, characterized in that, The temperature sensor, the smoke sensor and the flame sensor are cable-type sensors, and the fire extinguishing device further includes a manual starter (2).

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