Intelligent smoke exhaust system for fire-fighting garage in emergency rescue center

Abstract

The utility model relates to the technical field related to garages, in particular to an intelligent smoke exhaust system of an emergency rescue center fire truck garage. The intelligent smoke exhaust system for the fire-fighting garage of the emergency rescue center comprises a control center, a sensor module and an air exhaust module, the sensor module is arranged in the fire-fighting garage and is used for collecting co concentration; the air exhaust module is arranged in the fire-fighting garage and used for exhausting air in the fire-fighting garage; the control center is in communication connection with the sensor module and the air exhaust module and is used for controlling the air exhaust module to exhaust air when the co concentration exceeds a preset threshold value; wherein the sensor module comprises a plurality of sensors which are arranged on the ground or low positions of the fire-fighting garage, a plurality of sensors which are arranged on supporting columns, and a part of sensors which are arranged on the top of the fire-fighting garage.

Description

Technical Field

[0001] This application relates to the field of garage-related technology, specifically to an intelligent smoke extraction system for an emergency rescue center fire garage. Background Technology

[0002] Fire truck parking garages at emergency rescue centers are a crucial component of fire and rescue operations. Their primary function is to provide parking, maintenance, and rapid response facilities for fire trucks. However, due to the unique characteristics of fire trucks—such as their high power output, typically diesel engine operation, and the relatively high ceilings in the parking garages—they generate significant amounts of exhaust fumes when starting, especially harmful gases from diesel combustion (such as carbon monoxide, CO). If these exhaust fumes are not promptly removed, they not only harm the health of firefighters but also hinder rescue efficiency. Therefore, addressing the ventilation and smoke extraction issues in fire truck parking garages is a critical aspect of their design. Utility Model Content

[0003] In view of this, embodiments of this application aim to provide an intelligent smoke exhaust system for fire garages in emergency rescue centers.

[0004] This application provides an intelligent smoke exhaust system for an emergency rescue center fire garage, including: a control center, a sensor module, and an exhaust module;

[0005] The sensor module is installed in the fire garage to collect CO concentration;

[0006] The exhaust module is installed in the fire garage and is used to exhaust air from the fire garage.

[0007] The control center is communicatively connected to the sensor module and the exhaust module, and is used to control the exhaust module to exhaust air when the CO concentration exceeds a preset threshold.

[0008] The sensor module includes multiple sensors installed on the ground or at low positions in the fire garage, multiple sensors installed on support columns, and some sensors installed on the top of the fire garage.

[0009] In some embodiments, the exhaust module includes multiple fans;

[0010] The fan is configured to evenly exhaust air from the fire truck garage.

[0011] In some embodiments, the exhaust module includes an air vent disposed in the fire garage;

[0012] The plurality of air vents are respectively positioned at a first distance from the ground and at a second distance from the ground; wherein the first distance and the second distance are different.

[0013] The height of the sensor on the support column from the ground is the third distance;

[0014] The horizontal distance between the sensor on the support column and the nearest air vent is the fourth distance.

[0015] In some embodiments, the exhaust module includes an air vent disposed in the fire garage;

[0016] The multiple air vents are respectively located at a height of 3.19m above the ground and at a height of 2.13m above the ground;

[0017] The sensor on the support column is 1.5m above the ground;

[0018] The horizontal distance between the sensor on the support column and the nearest air vent is 2.78m.

[0019] In some embodiments, the fan has a speed regulation function;

[0020] The control center is used to control the fan speed based on the CO concentration, so that the higher the CO concentration, the higher the fan speed.

[0021] In some embodiments, the control center is provided with an independent preset threshold; the preset threshold is set to be independent of the threshold set in the fire protection system.

[0022] In some embodiments, the sensor module further includes a temperature sensor, a humidity sensor, and an airflow sensor;

[0023] The control center corrects the CO concentration based on data collected by the temperature sensor, humidity sensor, and airflow sensor; or,

[0024] The preset threshold varies depending on the data collected by the temperature sensor, humidity sensor, and airflow sensor.

[0025] In some embodiments, sensors of the same type at the same height are evenly arranged.

[0026] In some embodiments, the fire garage is provided with different zones; each zone is independently equipped with a sensor module and an exhaust module.

[0027] The control center is used to individually control the different zones of the fire garage.

[0028] In some embodiments, the number of sensors installed on the ground or at a low position in the fire garage is greater than the number of sensors installed on the top of the fire garage.

[0029] This application provides an intelligent smoke extraction system for an emergency rescue center fire truck garage, comprising: a control center, a sensor module, and an exhaust module. The sensor module is installed inside the fire truck garage to collect CO concentration data. The exhaust module is installed inside the fire truck garage to ventilate the garage. The control center is communicatively connected to the sensor module and the exhaust module, and controls the exhaust module to ventilate when the CO concentration exceeds a preset threshold. The sensor module includes multiple sensors installed on the ground or at low positions within the fire truck garage, multiple sensors installed on support columns, and some sensors installed on the top of the fire truck garage. The system installs CO sensors on the ground, at low positions, on support columns, and on the top of the fire truck garage. This multi-layered, multi-position layout comprehensively covers the interior space of the garage, avoiding blind spots and ensuring that CO gas generated at any location can be detected promptly. Optimization of low-position sensors: Placing some sensors on the ground or at low positions allows for more direct detection of exhaust gases, especially CO gas, emitted when fire trucks start. This layout solves the problem in existing technologies where top sensors, due to their high position, cannot detect low concentrations of CO in a timely manner, improving detection sensitivity and accuracy. Enhanced anti-interference capability: By rationally arranging the sensors, the interference of environmental factors (such as temperature, humidity, and airflow) on the detection results is reduced. For example, sensors placed on the ground and at low positions can be closer to the pollution source, avoiding detection errors caused by airflow dilution. The system achieves real-time control of the exhaust module through a communication connection between the control center and the sensor modules. When the CO concentration exceeds the preset threshold, the exhaust module can be activated quickly to promptly remove harmful gases, avoiding the problems of untimely or excessive exhaust in existing technologies. This effectively solves the ventilation and smoke extraction problems of fire garages. Attached Figure Description

[0030] The above and other objects, features, and advantages of this application will become more apparent from the more detailed description of the embodiments of this application in conjunction with the accompanying drawings. The drawings are provided to further illustrate the embodiments of this application and form part of the specification. They are used together with the embodiments of this application to explain this application and do not constitute a limitation thereof. In the drawings, the same reference numerals generally represent the same components or steps.

[0031] Figure 1 This is a schematic diagram of the structure of an intelligent smoke exhaust system for an emergency rescue center fire garage provided in one embodiment of this application.

[0032] Figure 2 This is the sensor layout diagram before optimization.

[0033] Figure 3 This is the optimized sensor layout diagram.

[0034] Figure 4This is the layout diagram of the low-profile sensors before optimization.

[0035] Figure 5 This is the optimized layout diagram of the low-profile sensors.

[0036] Figure 6 This is the optimized sensor layout diagram.

[0037] Figure label:

[0038] 1-Control center, 2-Sensor module, 3-Exhaust module. Detailed Implementation

[0039] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0040] Application Overview

[0041] Emergency rescue center fire truck parking garages have the following characteristics: ① High power, usually diesel-powered, resulting in a large instantaneous diesel emission after the fire truck starts. ② High ceilings. ③ Rescue personnel, equipment, and preparation areas are concentrated near the fire truck parking area. To reduce the time required for rapid emergency response by fire trucks and ensure the safety of firefighters, effectively addressing ventilation and smoke extraction in the parking garage is a crucial design issue. The design must meet both normal ventilation requirements (removing vehicle exhaust and gasoline vapors while introducing fresh air) and smoke extraction requirements during a fire.

[0042] Ventilation systems are mainly divided into two types: natural ventilation and mechanical ventilation. Natural ventilation relies on the airflow formed by the temperature and pressure differences between the inside and outside of a building; while mechanical ventilation uses equipment such as fans to force airflow and achieve air exchange. In garage design, mechanical ventilation systems are more common due to their higher controllability and efficiency. In this design, exhaust, smoke extraction, and insulation are fully considered. While ensuring that design requirements are met, the system is designed to be simple to install, inexpensive, reliable, and easy to maintain.

[0043] After introducing the basic principles of this application, various non-limiting embodiments of this application will be described in detail below with reference to the accompanying drawings.

[0044] Exemplary System

[0045] Reference Figure 1This application discloses an intelligent smoke exhaust system for an emergency rescue center fire garage, comprising: a control center 1, a sensor module 2, and an exhaust module 3;

[0046] The sensor module 2 is installed in the fire garage to collect CO concentration;

[0047] The exhaust module 3 is installed in the fire garage and is used to exhaust air from the fire garage.

[0048] The control center 1 is communicatively connected to the sensor module 2 and the exhaust module 3, and is used to control the exhaust module 3 to exhaust air when the CO concentration exceeds a preset threshold.

[0049] The sensor module includes multiple sensors installed on the ground or at low positions in the fire garage (i.e., ground sensors), multiple sensors installed on support columns (i.e., wall sensors), and some sensors installed on the top of the fire garage (i.e., top sensors).

[0050] Specifically, the control center is the "brain" of the entire system, responsible for receiving data from the sensor modules and controlling the exhaust module according to preset logic. It interacts with the sensor and exhaust modules in real time via communication connections to ensure automated system operation. The sensor modules are the key sensing component of the system, used to collect CO concentration data in the fire truck garage in real time. These modules include: ground or low-lying sensors: installed on the ground or in low locations within the fire truck garage, directly detecting exhaust fumes, especially CO, emitted when fire trucks start. This layout allows for rapid detection of low concentrations of harmful gases, improving detection sensitivity. Support column sensors: installed on support columns within the garage, used to monitor CO concentration in the central area. These sensors supplement the ground sensors, ensuring wider detection coverage. Top sensors: a small number installed on the garage ceiling, used to monitor changes in CO concentration throughout the space. As an auxiliary detection method, top sensors provide more comprehensive environmental data. The exhaust module is the execution component of the system, responsible for ventilating the fire truck garage according to instructions from the control center. When the sensor detects that the CO concentration exceeds the preset safety threshold, the control center will trigger the ventilation module to start, quickly expelling harmful gases and ensuring that the air quality in the garage meets safety standards.

[0051] The sensor module collects CO concentration data in real time within the fire garage and transmits this data to the control center. Upon receiving the data, the control center determines whether the CO concentration exceeds a preset threshold. If the CO concentration exceeds the safety threshold, the control center immediately issues a command. Upon receiving the command from the control center, the ventilation module quickly activates the ventilation function to expel the harmful gases from the garage. Simultaneously, it dynamically adjusts the ventilation intensity based on changes in CO concentration to ensure maximum smoke extraction efficiency.

[0052] The solution provided in this application utilizes sensors installed on the ground, at low elevations, on support columns, and at the top to comprehensively cover all areas within the fire garage, avoiding blind spots and ensuring the accuracy and reliability of CO concentration detection. The system dynamically adjusts exhaust ventilation intensity based on real-time CO concentration readings, achieving intelligent smoke extraction. This intelligent control not only improves smoke extraction efficiency but also reduces energy waste and lowers operating costs. Through rapid response and efficient smoke extraction, the system effectively reduces the risk of firefighters being exposed to harmful gases within the garage, protecting their health and safety while providing a cleaner and more comfortable working environment. The system can be flexibly configured for fire garages of different sizes and structures to meet the smoke extraction needs of various scenarios. Furthermore, preset thresholds and ventilation strategies can be adjusted according to actual usage to adapt to different working conditions.

[0053] The intelligent smoke extraction system for fire garages in emergency rescue centers, as described in this application, achieves accurate monitoring of CO concentration and efficient smoke extraction within the fire garage through optimized sensor layout and intelligent ventilation control. This system not only improves the ventilation efficiency of the fire garage and protects the health and safety of firefighters, but also boasts high reliability and economy, providing strong support for emergency rescue operations.

[0054] In some embodiments, the exhaust module includes multiple fans; the fans are configured to uniformly exhaust air from the fire truck garage. Furthermore, the fans have a speed regulation function; the control center is used to control the fan speed based on the CO concentration, so that the higher the CO concentration, the higher the fan speed.

[0055] In this embodiment, the exhaust module includes multiple fans, which are strategically arranged within the fire truck garage to achieve uniform exhaust throughout the space. Specific features are as follows:

[0056] The arrangement of multiple fans ensures that airflow evenly covers all areas of the fire garage, avoiding the airflow dead zones or uneven exhaust that can occur in traditional single-fan systems. By optimizing the location and number of fans, the system can more efficiently remove harmful gases (such as CO) while reducing exhaust time.

[0057] If the fire garage is divided into multiple zones, each zone can be equipped with an independent fan, further improving the flexibility and efficiency of ventilation. This zoned design allows the system to be controlled independently according to the actual needs of each zone, avoiding unnecessary energy waste.

[0058] Furthermore, each fan is equipped with a speed regulation function. The core of this design lies in dynamically adjusting the fan's operating status based on real-time monitoring of the CO concentration. The specific implementation is as follows:

[0059] The control center communicates with the sensor module to receive real-time CO concentration data from the fire garage. When the CO concentration increases, the control center automatically increases the fan speed to accelerate the discharge of harmful gases; when the CO concentration decreases, the fan speed decreases accordingly to maintain adequate ventilation while reducing energy consumption.

[0060] This dynamic speed regulation function not only improves the system's intelligence level but also achieves energy-saving operation. By precisely controlling the fan speed, the system avoids the "one-size-fits-all" operation mode common in traditional exhaust systems, meaning that the fan will not run at high speed unnecessarily when high-intensity exhaust is not required, thereby reducing energy consumption.

[0061] The combination of multiple fans and dynamic speed regulation enables the system to respond quickly to changes in CO concentration and promptly remove harmful gases. This design is particularly suitable for scenarios such as fire garages where rapid ventilation is required to protect the health of personnel.

[0062] With its uniform exhaust design and dynamic speed adjustment, the system can precisely control the ventilation volume according to actual needs, avoiding the problems of insufficient or excessive ventilation that may occur in traditional systems, and improving the overall ventilation efficiency.

[0063] The dynamic speed regulation function allows the fan to operate at a low speed when the concentration is low, reducing unnecessary energy consumption. This energy-saving design not only reduces the system's operating costs but also meets the requirements of green building and sustainable development.

[0064] In this embodiment, the exhaust module achieves uniform and efficient ventilation within the fire truck garage through a multi-fan configuration and dynamic speed adjustment. This design not only improves the system's intelligence and ventilation efficiency but also reduces operating costs through energy-saving operation, while simultaneously ensuring the health and safety of firefighters.

[0065] In some embodiments, the control center is provided with independent preset thresholds; these preset thresholds are set to be independent of the thresholds set in the fire protection system.

[0066] In some embodiments, the sensor module further includes a temperature sensor, a humidity sensor, and an airflow sensor; the control center corrects the CO concentration based on the data collected by the temperature sensor, humidity sensor, and airflow sensor; or, the preset threshold varies depending on the data collected by the temperature sensor, humidity sensor, and airflow sensor.

[0067] The control center has independent preset thresholds, completely separate from those set in the fire protection system. The core of this design is to differentiate between routine smoke extraction needs and emergency fire response needs, ensuring the system can provide precise control strategies for different scenarios. The control center sets an independent CO concentration threshold for the smoke extraction system, specifically for routine smoke extraction control. This threshold is optimized based on the characteristics of vehicle exhaust emissions in fire garages (such as the CO concentration from diesel vehicles), ensuring that the system can efficiently extract harmful gases and protect air quality in non-fire conditions. Fire protection systems typically have higher thresholds to trigger fire alarms and emergency smoke extraction modes. This system's independent threshold focuses on routine smoke extraction, avoiding untimely smoke extraction due to excessively high fire protection system thresholds or resource waste caused by false fire system triggers. The independent threshold can be optimized for routine smoke extraction needs, ensuring the system can initiate exhaust ventilation even when CO concentration is slightly high, preventing the accumulation of harmful gases. The separation from the fire protection system reduces false fire alarm triggers caused by routine exhaust emissions, improving system reliability and stability. The independent threshold can be dynamically adjusted according to actual needs, avoiding unnecessary high-intensity ventilation and thus reducing energy consumption.

[0068] In some embodiments, the sensor module includes not only a CO sensor but also a temperature sensor, a humidity sensor, and an airflow sensor. The control center uses the combined data collected by these sensors to calibrate the CO concentration or dynamically adjust a preset threshold. The core of this design is to improve the system's adaptability to environmental changes and its detection accuracy. Temperature, humidity, and airflow sensors monitor environmental parameters within the fire truck garage in real time. These parameters have a significant impact on CO concentration detection, for example:

[0069] Temperature: High temperatures may affect the sensitivity of the sensor, leading to deviations in detection results.

[0070] Humidity: High humidity may cause condensation on the sensor surface, affecting detection accuracy.

[0071] Airflow: The speed and direction of airflow affect the diffusion rate and distribution of CO.

[0072] The control center uses these environmental parameters to correct CO concentrations or dynamically adjusts preset thresholds based on environmental changes. For example:

[0073] In high-humidity environments, the CO concentration threshold should be appropriately increased to avoid false alarms caused by decreased sensor sensitivity. When airflow is strong, the threshold should be adjusted according to the CO diffusion rate to ensure timely system response. Through multi-parameter calibration, the system can more accurately reflect the actual CO concentration, reducing detection errors caused by environmental factors. Dynamic threshold adjustment allows the system to automatically optimize its operating strategy based on environmental changes, adapting to different operating conditions and improving system flexibility and reliability. Precise detection and dynamic adjustment ensure that the system operates under optimal conditions, avoiding excessive or insufficient exhaust, thereby improving smoke extraction efficiency and reducing energy consumption.

[0074] In the intelligent smoke extraction system for the fire garage of the emergency rescue center proposed in this application, by setting independent preset thresholds and introducing multi-parameter correction functions, the system can achieve precise control over daily smoke extraction needs, while improving detection accuracy and environmental adaptability. This design not only optimizes smoke extraction efficiency and reduces energy consumption, but also improves the reliability and stability of the system, providing strong protection for air quality management and the safety of firefighters in the fire garage.

[0075] In some embodiments, sensors of the same type are evenly distributed at the same height. At the same height, sensors of the same type (such as CO sensors, temperature sensors, etc.) are evenly distributed throughout the fire truck garage. The core objective of this design is to ensure that sensors can fully cover the garage space, avoiding detection blind spots, while improving the accuracy and reliability of the detection data. At the same height level (such as the ground level, low-lying areas, support column levels, or the top), sensors of the same type are evenly installed at preset intervals. For example, CO sensors are installed at regular intervals at the ground level to ensure that exhaust gases emitted when fire trucks start are detected. The sensor layout is optimized to ensure that changes in gas concentration at any location within that height level can be detected promptly. This layout is particularly suitable for environments with large spaces and dense vehicle parking, such as fire truck garages. Evenly distributed sensors ensure comprehensive coverage of the entire garage space, avoiding detection blind spots caused by uneven sensor distribution. Through even distribution, sensors can more accurately reflect the distribution of gas concentration, reducing data deviations caused by excessively concentrated or sparse local sensors. Evenly distributed sensors reduce the risk of false alarms or missed alarms due to unreasonable sensor placement, improving the overall reliability of the system.

[0076] In some embodiments, each zone is independently equipped with a sensor module and an exhaust module; the control center is used to individually control the different zones of the fire garage. The fire garage is divided into multiple independent zones, each with its own independent sensor module and exhaust module. The control center can control each zone individually. The core objective of this design is to improve the system's flexibility and efficiency while optimizing resource utilization. The fire garage is divided into multiple independent zones based on spatial layout or functional areas. Each zone is independently configured with a sensor module and an exhaust module, ensuring that the detection and exhaust functions within the zone operate independently.

[0077] The control center can independently control the exhaust module of each zone based on sensor data. For example, when the CO concentration in a zone increases, the control center only activates the exhaust module of that zone without affecting the operation of other zones. Independent zone control allows the system to flexibly adjust the exhaust strategy according to the actual needs of each zone, avoiding unnecessary energy waste.

[0078] In some embodiments, the number of sensors installed on the ground or at low positions in the fire truck garage is greater than the number of sensors installed on the roof. The larger number of ground-mounted or low-mounted sensors allows for direct detection of exhaust fumes emitted when fire trucks start. These sensors are installed in vehicle parking areas, maintenance areas, and areas with high personnel activity to ensure timely detection of rising CO concentrations. The smaller number of roof sensors primarily assists in detecting changes in overall space CO concentration, supplementing the ground-mounted sensors.

[0079] The following description, in conjunction with various preferred embodiments, further illustrates the solution provided in this application:

[0080] In the existing design, the garage smoke exhaust duct is divided into two zones based on the number of fans and the regional airflow effect: smoke control zone one and smoke control zone two. Smoke control zone one connects to one fan, while smoke control zone two connects to two fans. The number of duct outlets is set to 8 and 17 respectively.

[0081] Due to the height of fire truck garages, the CO concentration sensor on the roof will not register a reading for a short period after the fire truck is started, thus failing to provide an early warning. Currently, in fire truck garages, CO detection sensors are typically installed on the ceiling and support columns. While this installation method can cover most of the garage area to some extent, it presents several problems in practical application.

[0082] The data from the top sensor remained unchanged.

[0083] When CO gas is present in the garage, the sensors installed on the ceiling sometimes fail to accurately reflect changes in CO concentration. This may be because the sensors are positioned too high, making it impossible to effectively capture low concentrations of CO gas; or because the sensors are affected by factors such as the garage ceiling structure and airflow, leading to inaccurate detection data.

[0084] Insufficient sensor coverage on the support column;

[0085] While sensors on the support columns can compensate for some of the limitations of the top sensors, their limited number may prevent them from fully covering all areas of the garage. Especially in garages with large areas and complex structures, the sensors on the support columns may not be able to detect changes in CO concentration in certain areas in a timely manner.

[0086] Environmental interference;

[0087] The environment inside a garage can interfere with CO detection sensors. For example, factors such as temperature, humidity, and airflow within the garage can all affect the sensor's detection performance. Other gases that may be present in the garage can also interfere with sensor detection.

[0088] If the smoke exhaust and air supply efficiency is low, or if one sensor exceeds the threshold, all the fans will start.

[0089] Existing technical solutions for garage smoke exhaust: In his article "Research on Design Problems of Automatic Fire Alarm System" in 2021, Zeng Rui proposed that in the event of a fire in the interior of a building, if the fire alarm signal instruction lights configured in the same smoke exhaust zone all issue fire warning instructions at the same time, the smoke exhaust system can be automatically put into the operation range of the fire alarm system and become a trigger signal. The fire linkage controller opens the pressurized air supply outlet and starts the pressurized air supply fan, and at the same time opens the relevant smoke exhaust outlets, smoke exhaust windows and smoke exhaust valves in the zone. When the smoke exhaust temperature continues to rise and reaches the maximum upper limit value preset by the valve device, the fuse automatically melts and the smoke exhaust valve switches to the closed state. In this way, hot smoke and dust are prevented from entering other zones, and the scope of fire accident impact is prevented from expanding further [1]. This smoke exhaust system based on fire alarm is generally composed of fire detectors, manual fire alarm buttons, sound and light alarms, etc. [2]. Using the corresponding sensor data, the smoke exhaust fan is connected to both ends of the relay. The working state of the fan is controlled by the on and off of the relay. Its schematic diagram is as follows. Figure 3 As shown.

[0090] The improvements provided in this application for the specific garage mentioned above are as follows:

[0091] Regarding ventilation systems, their layout should adhere to the following principles: Uniform distribution: Ensure airflow evenly covers the entire space, avoiding airflow blind spots. Reasonable airflow direction: Design a reasonable airflow direction to avoid short-circuiting and backflow, improving ventilation efficiency. Energy efficiency: While meeting ventilation needs, minimize energy consumption and improve the overall energy efficiency of the system.

[0092] Specifically, the ventilation module includes an air vent installed in the fire garage; multiple air vents are respectively installed at a first distance from the ground and at a second distance from the ground; wherein the first distance and the second distance are different; the sensor on the support column is at a third distance from the ground; and the horizontal distance between the sensor on the support column and the nearest air vent is a fourth distance.

[0093] After optimization, the number of duct vents in smoke control zone 1 was reduced to 4, and the number of duct vents in smoke control zone 2 was reduced to 8. This improves exhaust efficiency, optimizes airflow organization, and enhances overall system performance. By reducing the number of vents, exhaust air can be more concentrated, allowing each retained vent to receive a larger volume of air, thereby improving exhaust efficiency. At the same time, the optimized vent layout makes it easier to control the direction and speed of airflow, achieving a more rational airflow organization.

[0094] Specifically, refer to Figure 6 The multiple air vents are respectively positioned at a height of 3.19m and 2.13m above the ground; the sensor on the support column is 1.5m above the ground; the horizontal distance between the sensor on the support column and the nearest air vent is 2.78m. It should be noted that... Figure 6 This is a horizontal schematic diagram. The numbers in the diagram represent distances in mm. The core of the above distribution is: separate air vents are installed at different heights. The sensors should not be placed too close to the vents.

[0095] To address existing issues with CO detection sensors in fire truck garages, the number and location of sensors were optimized. First, most of the top-mounted sensors were removed, retaining only a small number as supplementary detection methods. Second, the number of sensors was increased on the garage floor and in low-lying areas, installed at key locations such as garage entrances, vehicle parking areas, and maintenance areas. Furthermore, the sensor layout on the support columns was optimized to ensure even distribution throughout the garage. These changes aim to improve the accuracy and reliability of CO detection and reduce false alarms and missed alarms.

[0096] In response to the above problems, refer to Figure 2 The following schemes for optimizing sensor position are proposed:

[0097] Most of the top sensors were removed;

[0098] Because the top sensors showed no change in CO gas detection data, most of them were removed. A small number of top sensors were retained as an auxiliary detection method to monitor changes in CO concentration at the garage ceiling. Simultaneously, after removing the top sensors, the airflow within the garage was assessed to ensure that the remaining sensors could accurately capture changes in CO gas concentration.

[0099] Add garage floor and low-profile sensors

[0100] To more accurately detect changes in CO concentration within the garage, the number of sensors is increased on the garage floor and in low-lying locations. These sensors can be installed in key locations such as the garage entrance, vehicle parking areas, and maintenance areas. By increasing the number of sensors in these locations, low concentrations of CO gas can be captured more effectively, improving the accuracy and reliability of the detection. A comparison of the sensor arrangement in low-lying locations before and after optimization is shown below. Figure 3 and Figure 4 As shown.

[0101] Optimize the sensor layout on the support column

[0102] For sensors mounted on support columns, their layout is optimized based on the garage's structure and area. In garages with large areas and complex structures, the number of sensors on the support columns can be increased, ensuring their even distribution throughout the garage. Simultaneously, sensors with higher sensitivity and stability are employed to improve detection accuracy and reliability.

[0103] Considering the impact of environmental factors on sensors

[0104] When optimizing sensor placement, the impact of environmental factors on the sensors must also be considered. For example, factors such as temperature, humidity, and airflow within the garage can all affect the sensor's detection performance. Therefore, these factors should be fully considered when installing sensors, and appropriate measures should be taken to compensate for or adjust them.

[0105] Furthermore, the previous smoke extraction system shared a single system with the fire protection system. Zeng Rui, in his 2021 article "Research on Design Issues of Automatic Fire Alarm Systems," proposed that in the event of a fire inside a building, if all fire alarm signal lights in the same smoke extraction zone simultaneously issue fire warning commands, the smoke extraction system can be automatically put into operation within the fire alarm system's scope. This is not conducive to the daily smoke extraction of fire truck garages. Fire trucks, due to their high engine power, produce a significant amount of exhaust gas during normal vehicle ignition. Since this exhaust gas does not reach the warning threshold for a fire, the smoke extraction system is not activated when sharing a single system with the fire alarm system, resulting in ineffective exhaust gas removal. When fire truck garages use independent smoke extraction systems, appropriate thresholds are set based on the actual exhaust gas emissions from fire trucks for precise smoke extraction control.

[0106] This design places CO sensors at different heights within the same smoke control zone to obtain CO concentration values ​​for different areas. When the CO concentration exceeds a set threshold, the central processing unit sends a signal to a relay, and the smoke exhaust fan automatically starts operating.

[0107] Due to the unique nature of fire truck garages, different numbers of fire trucks may start simultaneously at different times, resulting in varying gas concentrations within the same space at different times. Previous smoke extraction systems only allowed for a single operating speed for the exhaust fans, with flow rate adjusted via dampers. This resulted in significant power wasted by the resistance of the dampers, and the exhaust volume couldn't adapt to sudden changes in gas concentration, leading to low smoke extraction efficiency. This new design sets different fan speeds based on varying gas concentrations. As gas concentration increases, the exhaust fan speed also increases, significantly improving smoke extraction efficiency. Furthermore, the exhaust fan speed can be adjusted online.

[0108] The above description has been given for purposes of illustration and description. Furthermore, this description is not intended to limit the embodiments of this application to the forms disclosed herein. Although numerous exemplary aspects and embodiments have been discussed above, those skilled in the art will recognize certain variations, modifications, alterations, additions, and sub-combinations thereof.

Claims

1. An intelligent smoke exhaust system for an emergency rescue center fire engine garage, characterized in that, The application relates to a fire-fighting vehicle garage, which comprises a control center, a sensor module and an air exhaust module. The sensor module is arranged in the fire-fighting vehicle garage and used for collecting the CO concentration. The air exhaust module is arranged in the fire-fighting vehicle garage and used for exhausting air in the fire-fighting vehicle garage. The control center is in communication connection with the sensor module and the air exhaust module, and is used for controlling the air exhaust module to exhaust air when the CO concentration exceeds a preset threshold value. The sensor module comprises a plurality of sensors arranged on the ground or low positions of the fire-fighting vehicle garage, a plurality of sensors arranged on support columns and a plurality of sensors arranged on the top of the fire-fighting vehicle garage. The air exhaust module comprises a plurality of air fans.

2. The intelligent smoke exhaust system of the emergency rescue center fire engine garage according to claim 1, characterized in that, The air fans are arranged to uniformly exhaust air in the fire-fighting vehicle garage. The air exhaust module comprises air outlets arranged on the fire-fighting vehicle garage.

3. The intelligent smoke exhaust system for an emergency rescue center fire station garage according to claim 1, characterized in that, The plurality of air outlets are arranged at positions with a first distance from the ground and positions with a second distance from the ground, and the first distance is different from the second distance. The height of the sensor arranged on the support column from the ground is a third distance. The horizontal distance between the sensor arranged on the support column and the nearest air outlet is a fourth distance. The air exhaust module comprises air outlets arranged on the fire-fighting vehicle garage.

4. The intelligent smoke exhaust system for an emergency rescue center fire station garage according to claim 1, characterized in that, The plurality of air outlets are arranged at positions with a height of 3.19 m from the ground and positions with a height of 2.13 m from the ground. The height of the sensor arranged on the support column from the ground is 1.5 m. The horizontal distance between the sensor arranged on the support column and the nearest air outlet is 2.78 m. The air fan has a rotating speed adjusting function.

5. The intelligent smoke exhaust system for an emergency rescue center fire station garage according to claim 2, characterized in that, The control center is used for controlling the rotating speed of the air fan based on the CO concentration, so that the higher the CO concentration, the greater the rotating speed of the air fan. The control center is provided with an independent preset threshold value, which is independent of the threshold value arranged in the fire-fighting system.

6. The intelligent smoke exhaust system for an emergency rescue center fire station garage according to claim 1, characterized in that, The sensor module further comprises a temperature sensor, a humidity sensor and an air flow sensor.

7. The intelligent smoke exhaust system for an emergency rescue center fire station garage according to claim 1, characterized in that, The control center corrects the CO concentration based on the data collected by the temperature sensor, the humidity sensor and the air flow sensor. The preset threshold value changes with the data collected by the temperature sensor, the humidity sensor and the air flow sensor. The same type of sensors at the same height are uniformly arranged.

8. The intelligent smoke exhaust system for an emergency rescue center fire station garage according to claim 1, characterized in that, The fire-fighting vehicle garage is provided with different partitions, and each partition is independently provided with a sensor module and an air exhaust module.

9. The intelligent smoke exhaust system for an emergency rescue center fire station garage according to claim 1, characterized in that, The control center is used for separately controlling different partitions of the fire-fighting vehicle garage. The number of sensors arranged on the ground or low positions of the fire-fighting vehicle garage is greater than the number of sensors arranged on the top of the fire-fighting vehicle garage.

10. The intelligent smoke exhaust system for an emergency rescue center fire station garage according to claim 1, characterized in that, ​

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