Automatic fire cut-off exhaust system

Abstract

The utility model provides automatic fire cut exhaust system, relates to fire field, including water supply tank, the outer wall of water supply tank is fixedly connected with water supply motor, the outer wall of water supply tank is matched to be provided with acid mist purification tower, the outer wall of acid mist purification tower is provided with control cabinet, the outer wall of acid mist purification tower is fixedly connected with temperature control valve, in the utility model, when the workshop breaks out fire, this system can rely on the linkage mechanism of thermocouple and temperature control valve, and the exhaust motor power is automatically cut off and the valve is closed in the moment of detecting abnormal temperature, prevents the exhaust system from intensifying the fire spreading and smoke diffusion because of the chimney effect accurately, gains the precious time for personnel safety evacuation and fire rescue, reduces the security risk from the root, in addition, the system adopts the humanization design, only needs to connect the power and completes the basic parameter setting to put into operation, discards the complicated operation process, greatly promotes the use convenience, even if the non - professional personnel can also grasp the operation gist quickly.

Description

Technical Field

[0001] This utility model relates to the field of fire protection, and in particular to an automatic fire shut-off and exhaust system. Background Technology

[0002] A fire is a disaster caused by uncontrolled combustion in time and space. It usually causes property damage and casualties. There are many causes of fires, including but not limited to human factors (such as smoking and careless use of fire), natural factors (such as lightning strikes) and electrical failures.

[0003] An automatic fire shut-off ventilation system is a ventilation or exhaust system that can automatically stop operating when a fire occurs to prevent the spread of fire and smoke through ducts and ensure the safety of people inside the building.

[0004] Existing automatic fire shut-off and exhaust systems have the following shortcomings: In existing technologies, automatic fire shut-off ventilation systems often fail to respond promptly to fire signals due to the lack of real-time monitoring and automatic control mechanisms. This frequently results in the exhaust motor power failing to disconnect automatically in real time, which may not only contribute to the spread of fire and accelerate the diffusion of smoke, but also pose a threat to fire rescue and personnel safety, presenting significant safety hazards and technical limitations. Utility Model Content

[0005] This invention precisely prevents the exhaust system from exacerbating the spread of fire and smoke due to the chimney effect, thus buying valuable time for safe evacuation and fire rescue, reducing safety risks at the source, and solving the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model adopts the following technical solution: an automatic fire shut-off ventilation system, including a water supply tank, a water supply motor fixedly connected to the outer wall of the water supply tank, an acid mist purification tower fitted to the outer wall of the water supply tank, a control cabinet installed on the outer wall of the acid mist purification tower, a temperature control valve fixedly connected to the outer wall of the acid mist purification tower, a thermocouple fixedly installed on the outer wall of the temperature control valve, and an exhaust motor fixedly installed on the outer wall of the acid mist purification tower. Through these components, ventilation can be stopped promptly, preventing the ventilation system from forming a chimney effect, thereby effectively preventing the spread of fire and smoke, providing protection for personnel safety and fire rescue, and reducing safety hazards.

[0007] Preferably, the outer wall of the water supply motor is fixedly connected to a water inlet pipe, which allows the user to easily connect to an external connection pipe.

[0008] Preferably, the water replenishment motor is connected to the water replenishment tank for replenishing water to the system. The acid mist purification tower is connected to water replenishment-related components and subsequent exhaust components through pipelines to purify acid mist. The water replenishment motor can precisely control the amount of water replenished and continuously replenish the water source required for the system's operation.

[0009] Preferably, the control cabinet is electrically connected to the water supply motor, temperature control valve, thermocouple, and exhaust fan motor to achieve control. Through the control cabinet, the temperature signal monitored by the thermocouple can be collected in real time, and the control command can be accurately output after logical operation.

[0010] Preferably, the temperature control valve and thermocouple are installed in the exhaust path and connected to the acid mist purification tower and exhaust fan motor through pipelines. The thermocouple is close to the inner wall of the pipeline to collect exhaust temperature signals in real time, and the temperature control valve is installed close to the exhaust fan motor. When the thermocouple detects that the temperature exceeds the threshold, the valve can be closed immediately through the control cabinet command, and the power supply to the exhaust fan motor can be cut off simultaneously, forming a full-link response mechanism from temperature monitoring to linkage control.

[0011] Compared with the prior art, the advantages and positive effects of this utility model are as follows: 1. In this utility model, when a fire breaks out in the workshop, the system can automatically cut off the power supply to the exhaust fan motor and close the valve the moment an abnormal temperature is detected, thanks to the linkage mechanism between the thermocouple and the temperature control valve. This accurately prevents the exhaust system from exacerbating the spread of fire and smoke due to the chimney effect, thus buying valuable time for personnel evacuation and fire rescue, and reducing safety risks at the source. In addition, the system adopts a user-friendly design. It can be put into operation simply by connecting the power supply and completing the basic parameter settings, eliminating cumbersome operating procedures and greatly improving ease of use. Even non-professionals can quickly master the operating essentials.

[0012] 2. In this utility model, the system is equipped with a high-precision thermocouple that fits tightly against the inner wall of the exhaust duct to monitor the temperature change of the airflow in real time. The collected temperature signal is synchronously transmitted to the Omron temperature controller in the control cabinet. The temperature controller is equipped with an intelligent computing module that can analyze and process the signal in real time. Through the control loop, it precisely controls the dedicated contactor of the exhaust motor and the temperature control valve. When the temperature reaches the preset threshold, the contactor immediately actuates, realizing the linkage control of the exhaust motor power cut-off and the temperature control valve closure. The entire temperature control component is integrated in the control cabinet to form a logically rigorous closed-loop control system. Attached Figure Description

[0013] Figure 1 This utility model presents a front view perspective view of the automatic fire shut-off and exhaust system.

[0014] Legend: 1. Water supply tank; 2. Water supply motor; 3. Acid mist purification tower; 4. Control cabinet; 5. Temperature control valve; 6. Thermocouple; 7. Exhaust fan motor. Detailed Implementation

[0015] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0016] Many specific details are set forth in the following description in order 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. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0017] Please see Figure 1 This utility model provides a technical solution: an automatic fire shut-off ventilation system, including a water supply tank 1, a water supply motor 2 fixedly connected to the outer wall of the water supply tank 1, an acid mist purification tower 3 installed on the outer wall of the water supply tank 1, a control cabinet 4 installed on the outer wall of the acid mist purification tower 3, a temperature control valve 5 fixedly connected to the outer wall of the acid mist purification tower 3, a thermocouple 6 fixedly installed on the outer wall of the temperature control valve 5, and an exhaust motor 7 fixedly installed on the outer wall of the acid mist purification tower 3. Through the above components, the exhaust can be stopped in time to prevent the exhaust system from forming a chimney effect, thereby effectively preventing the spread of fire and smoke, providing protection for personnel safety and fire rescue, and reducing safety hazards.

[0018] like Figure 1 As shown, the outer wall of the water supply motor 2 is fixedly connected to a water inlet pipe, which allows the user to easily connect to an external connection pipe.

[0019] like Figure 1 As shown, the water replenishment motor 2 is connected to the water replenishment tank 1 and is used to replenish water to the system. The acid mist purification tower 3 is connected to the water replenishment-related components and subsequent exhaust components through pipelines to purify acid mist. With the water replenishment motor 2, the amount of water replenished can be precisely controlled to continuously replenish the water source required for the system's operation.

[0020] like Figure 1 As shown, the control cabinet 4 is electrically connected to the water supply motor 2, the temperature control valve 5, the thermocouple 6, and the exhaust fan motor 7 to achieve control. Through the control cabinet 4, the temperature signal monitored by the thermocouple 6 can be collected in real time, and the control command can be accurately output after logical operation.

[0021] like Figure 1As shown, the temperature control valve 5 and thermocouple 6 are installed in the exhaust path and connected to the acid mist purification tower 3 and the exhaust fan 7 through pipelines. The thermocouple 6 is close to the inner wall of the pipeline to collect the exhaust temperature signal in real time. The temperature control valve 5 is installed next to the exhaust fan 7. When the thermocouple 6 detects that the temperature exceeds the threshold, it can immediately execute the valve closing action through the command of the control cabinet 4, and simultaneously cut off the power supply of the exhaust fan 7, forming a full-link response mechanism from temperature monitoring to linkage control.

[0022] The operating principle and usage of this device are as follows: When a fire breaks out inside the workshop, thermocouple 6 is placed against the inner wall of the exhaust duct to collect the airflow temperature signal in real time and transmits the temperature signal synchronously to the Omron temperature controller in the control cabinet 4. The intelligent computing module on the temperature controller analyzes and processes the signal in real time. When the exhaust temperature is detected to be greater than 60℃, the temperature controller precisely controls the dedicated contactor between the exhaust fan motor 7 and the temperature control valve 5 through the control loop. The contactor immediately actuates, realizing the linkage control of cutting off the power supply to the exhaust fan motor 7 and closing the temperature control valve 5, thereby automatically disconnecting the power supply to the exhaust fan motor 7 and closing the temperature control valve 5 on the exhaust duct, stopping the fire. The exhaust system is designed to prevent the chimney effect from accelerating the spread of fire. At the same time, the water supply motor 2 is connected to the water supply tank 1, which can precisely control the amount of water supplied and continuously replenish the water needed for the system's operation. The acid mist purification tower 3 is connected to the water supply-related components and subsequent exhaust components through pipelines to purify acid mist. The entire system is controlled by the control cabinet 4 to realize the electrical connection control of the water supply motor 2, temperature control valve 5, thermocouple 6, and exhaust motor 7, forming a full-link response mechanism from temperature monitoring to linkage control. This precisely prevents the exhaust system from exacerbating the spread of fire and smoke due to the chimney effect, thus buying valuable time for personnel evacuation and fire rescue.

[0023] The water supply motor 2, acid mist purification tower 3, control cabinet 4, temperature control valve 5, thermocouple 6, and exhaust fan motor 7 used in this application are all common conventional equipment on the market and are well known to those skilled in the art. In this application, the above equipment is used in a conventional manner without any improvement to its structure and function. As for their settings, installation, and electrical connection methods, those skilled in the art can debug and operate them according to the corresponding product instruction manuals, so they will not be described in detail here.

[0024] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. An automatic fire shut-off ventilation system, including a water supply tank (1), characterized in that: The water supply tank (1) is fixedly connected to the outer wall of the water supply motor (2), the water supply tank (1) is equipped with an acid mist purification tower (3), the acid mist purification tower (3) is equipped with a control cabinet (4) on the outer wall, the acid mist purification tower (3) is fixedly connected to the outer wall of the acid mist purification tower (3), the temperature control valve (5) is fixedly installed on the outer wall of the temperature control valve (5), and the exhaust fan motor (7) is fixedly installed on the outer wall of the acid mist purification tower (3).

2. The automatic fire shut-off and exhaust system according to claim 1, characterized in that: The outer wall of the water supply motor (2) is fixedly connected to a water inlet pipe.

3. The automatic fire shut-off and exhaust system according to claim 1, characterized in that: The water replenishment motor (2) is connected to the water replenishment tank (1) and is used to replenish water to the system. The acid mist purification tower (3) is connected to the water replenishment-related components and the subsequent exhaust components through pipelines to purify acid mist.

4. The automatic fire shut-off and exhaust system according to claim 1, characterized in that: The control cabinet (4) is electrically connected to the water supply motor (2), temperature control valve (5), thermocouple (6), and exhaust motor (7) respectively to achieve control.

5. The automatic fire shut-off and exhaust system according to claim 1, characterized in that: The temperature control valve (5) and thermocouple (6) are installed in the exhaust path and connected to the acid mist purification tower (3) and exhaust fan motor (7) through pipelines.

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