Mechanical smoke exhaust and air supplement system for garage

Abstract

The mechanical smoke exhaust and air supplement system comprises an underground garage, an air inlet shaft and an air exhaust shaft, the air inlet shaft and the air exhaust shaft are arranged on the two sides of the underground garage, an air supplement machine room is arranged between the air inlet shaft and the underground garage, an air supplement machine and an air supplement controller are arranged in the air supplement machine room, the air inlet end of the fan is communicated with the air inlet shaft, and the air outlet end of the fan is communicated with the air exhaust shaft. The air outlet end of the air supplement machine is communicated with the underground garage; an exhaust machine room is arranged between the exhaust shaft and the underground garage, an exhaust fan and an exhaust controller are arranged in the exhaust machine room, the air outlet end of the exhaust fan is communicated with the exhaust shaft, and the air inlet end of the exhaust fan is communicated with the underground garage; a plurality of CO sensors are arranged in the underground garage and electrically connected with the exhaust controller. The system has the high smoke exhausting and air supplementing capacity, circulation of air in the garage is guaranteed, the safety performance of the garage is improved, and the generalizability is high.

Description

Technical Field

[0001] The utility model relates to the technical field of garage smoke exhaust and air supply devices, and in particular to a garage mechanical smoke exhaust and air supply system. Background Art

[0002] With the progress of society, the number of cars has been increasing. Many residential areas, shopping malls or buildings have built underground garages for parking cars, and private villas are equipped with independent underground garages. The ventilation of many underground garages mainly relies on light wells and vehicle entrances and exits. However, due to the presence of gasoline in the car, there is a possibility of oil leakage and oil and gas volatilization. The upper limit of gasoline vapor explosion is 1.3% to 6.0%. When gasoline vapor reaches a certain amount, it may burn and explode. In addition, due to the increase of harmful gases in the air in the underground garage caused by automobile exhaust, it is difficult to discharge harmful gases or smoke caused by the fire in time when a fire occurs, which easily puts people staying in the underground garage in danger. The invention patent with application number 202111638974.9 discloses a garage ventilation and smoke exhaust method, system, equipment and storage medium, wherein the method includes obtaining monitoring videos and air quality data of the internal conditions of the garage; image processing monitoring videos to obtain image processing results, and statistically analyzing air quality data to obtain air quality statistical data; judging the image processing results to obtain fire judgment results, and controlling the operating status of the air supply fan and exhaust fan in the garage based on the fire judgment results; determining whether it is necessary to continue processing the air quality statistical data based on the fire judgment results; when it is necessary to continue processing the air quality statistical data, controlling the operating status of the air supply fan and the exhaust fan based on the air quality statistical data and a preset air quality statistical data threshold range, which has the effect of improving the safety of underground garages, but the system has a high cost and cannot be promoted and applied on a large scale at this stage. Utility Model Content

[0003] The utility model aims to provide a mechanical smoke exhaust and air supply system for a garage, which has a high smoke exhaust and air supply capacity, ensures the circulation of air in the garage, improves the safety performance of the garage, and has strong popularization applicability.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A mechanical smoke exhaust and air supply system for a garage comprises an underground garage, an air inlet shaft and an exhaust shaft arranged on both sides of the underground garage, an air supply machine room is arranged between the air inlet shaft and the underground garage, an air supply fan and an air supply controller are arranged in the air supply machine room, the air inlet end of the air supply fan is connected to the air inlet shaft, and the air outlet end of the air supply fan is connected to the underground garage; an exhaust machine room is arranged between the exhaust shaft and the underground garage, an exhaust fan and an exhaust controller are arranged in the exhaust machine room, the air outlet end of the exhaust fan is connected to the exhaust shaft, and the air inlet end of the exhaust fan is connected to the underground garage; a plurality of CO sensors are arranged in the underground garage, and the CO sensors are electrically connected to the exhaust controller.

[0006] Preferably, the air outlet end of the air supply fan is connected to the underground garage through an air supply duct, and a double-layer louver air supply outlet is provided on the end of the air supply duct.

[0007] Preferably, an air supply temperature control solenoid valve is provided on the air supply duct, and the air supply temperature control solenoid valve is electrically connected to the air supply controller.

[0008] Preferably, the air inlet end of the exhaust fan is connected to the underground garage through an exhaust duct, and a plurality of single-layer louver exhaust outlets are arranged on the exhaust duct.

[0009] Preferably, an exhaust temperature control solenoid valve is provided on the exhaust duct, and the exhaust temperature control solenoid valve is electrically connected to the exhaust controller.

[0010] Preferably, the height of the CO sensor from the floor is 1800 mm to 2400 mm.

[0011] In the utility model, the system utilizes the existing air inlet shaft and exhaust shaft in the building structure, circulates air in the underground garage through the air supply fan and the exhaust shaft, ensures the air quality of the underground garage, detects the CO concentration in the underground garage according to the CO sensor, controls the exhaust speed of the exhaust fan, and reduces the energy consumption of the exhaust fan under the premise of ensuring the air quality of the underground garage. The air supply room and the exhaust room are isolated from the underground garage. When a fire occurs in the underground garage, the operator can control the air supply fan or the exhaust fan separately in the air supply room or the exhaust room to perform ventilation operations, which is convenient for controlling the fire. The air supply temperature control solenoid valve and the exhaust temperature control solenoid valve can automatically control the on and off of the air supply and exhaust, and can realize automatic control. The exhaust fan can also serve as a smoke exhaust fan, which is a dual-purpose machine and saves construction costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0013] In the figure: 1. Underground garage; 2. Air inlet shaft; 3. Exhaust shaft; 4. Supply air room; 5. Supply air fan; 6. Supply air controller; 7. Supply air duct; 8. Double-layer louver air supply outlet; 9. Supply air temperature control solenoid valve; 10. CO sensor; 11. Exhaust fan room; 12. Exhaust fan; 13. Exhaust controller; 14. Exhaust duct; 15. Single-layer louver exhaust outlet; 16. Exhaust air temperature control solenoid valve; 17. Auxiliary exhaust outlet; 18. Auxiliary exhaust fan. DETAILED DESCRIPTION

[0014] The utility model is further described below in conjunction with the accompanying drawings:

[0015] like Figure 1 A mechanical smoke exhaust and air supply system for a garage shown in the figure comprises an underground garage 1, an air inlet shaft 2 and an exhaust shaft 3 arranged on both sides of the underground garage 1, an air supply machine room 4 is arranged between the air inlet shaft 2 and the underground garage 1, an air supply fan 5 and an air supply controller 6 are arranged in the air supply machine room 4, the air inlet end of the air supply fan 5 is connected to the air inlet shaft 2 through an air duct, and the air outlet end of the air supply fan 5 is connected to the underground garage 1. Specifically, the air outlet end of the air supply fan 5 is connected to the underground garage 1 through an air supply duct 7, and a double-layer louver air supply port 8 is arranged at the end of the air supply duct 7. During operation, the air supply operation of the air supply fan 5 to the underground garage 1 is controlled by the air supply controller 6, and an air supply temperature control solenoid valve 9 is arranged on the air supply duct 7, and the air supply temperature control solenoid valve 9 is electrically connected to the air supply controller 6 through a cable. In this embodiment, the air supply temperature control solenoid valve 9 uses a normally open fire damper (FD / 70°C / normally open), which is fused closed when the temperature reaches 70°C, and outputs a closing action electrical signal to the air supply controller 6 and the fire control center, cutting off the power supply of the air supply fan 5, so that the operator can perform related maintenance, inspection and fire fighting operations. The air supply controller 6 is an intelligent controller for fire fighting (which can be purchased directly on the market), or a single-chip microcomputer, and the program is designed according to the wind speed, temperature and other signals of the air supply. The program can be adapted and produced by personnel in this field according to the action to be executed, and will not be described in detail in this manual.

[0016] An exhaust fan room 11 is provided between the exhaust shaft 3 and the underground garage 1. An exhaust fan 12 and an exhaust controller 13 are provided in the exhaust fan room 11. The air outlet of the exhaust fan 12 is connected to the exhaust shaft 3 through an air duct, and the air inlet of the exhaust fan 12 is connected to the underground garage 1. Specifically, the air inlet of the exhaust fan 12 is connected to the underground garage 1 through an exhaust duct 14, and a plurality of single-layer louver exhaust ports 15 are provided on the exhaust duct 14. During operation, the exhaust fan 12 is controlled by the exhaust controller 13 to exhaust air or exhaust smoke from the underground garage 1. An exhaust temperature control solenoid valve 16 is provided on the exhaust duct 14, and the exhaust temperature control solenoid valve 16 is electrically connected to the exhaust controller 13 through a cable. In this embodiment, the exhaust temperature control solenoid valve 16 uses a normally open smoke exhaust fire damper (SD / 280°C / normally open), which is fused closed when the temperature reaches 280°C, and outputs a closing action electrical signal to the exhaust controller 13 and the fire control center, cutting off the power supply of the exhaust fan 12, so that the operator can perform related maintenance, inspection and fire fighting operations. The exhaust controller 13 is an intelligent controller for fire fighting (which can be purchased directly on the market), or a single-chip microcomputer, which is designed according to exhaust wind speed, temperature and other signals. The program can be adapted and produced by personnel in this field according to the action to be executed, and is not described in detail in this manual.

[0017] A plurality of CO sensors 10 are arranged in the underground garage 1, and the CO sensor 10 is electrically connected to the exhaust controller 13 via a cable. The height of the CO sensor 10 from the floor is 1800 mm to 2400 mm. In the present embodiment, the preferred height of the CO sensor 10 from the floor is 2000 mm. The CO concentration measured by the CO sensor 10 is used to frequency-control the operation of the exhaust fan 12 and the make-up air fan 5, so that the system reduces energy consumption while satisfying the ventilation effect, thus avoiding the waste of electric energy. The exhaust air temperature control solenoid valve 16 and the make-up air temperature control solenoid valve 9 are electrically connected to the fire control center, and can also serve as a fire monitor, thereby reducing the investment in fire equipment and saving costs.

[0018] An auxiliary exhaust vent 17 is provided on the floor or wall of the underground garage 1, and an auxiliary exhaust fan 18 is provided in the exhaust fan room 11. The air inlet and outlet ends of the auxiliary exhaust fan 18 are respectively connected to the auxiliary exhaust vent 17 and the exhaust shaft 3 through air ducts. When a fire occurs or the exhaust fan 12 fails, the auxiliary exhaust fan 18 can be used for auxiliary smoke exhaust to improve the smoke exhaust capacity.

[0019] The above embodiments are only some descriptions of the concept and implementation of the utility model, and are not intended to limit the concept and implementation of the utility model. Under the concept of the utility model, technical solutions that have not been substantially changed are still within the scope of protection.

Claims

1. A mechanical smoke exhaust and air supply system for a garage, comprising an underground garage, an air inlet shaft and an air exhaust shaft arranged on both sides of the underground garage, characterized in that: An air supply machine room is arranged between the air inlet shaft and the underground garage, and an air supply fan and an air supply controller are arranged in the air supply machine room, the air inlet end of the air supply fan is connected with the air inlet shaft, and the air outlet end of the air supply fan is connected with the underground garage; an exhaust machine room is arranged between the exhaust shaft and the underground garage, and an exhaust fan and an exhaust controller are arranged in the exhaust machine room, the air outlet end of the exhaust fan is connected with the exhaust shaft, and the air inlet end of the exhaust fan is connected with the underground garage; a plurality of CO sensors are arranged in the underground garage, and the CO sensors are electrically connected with the exhaust controller.

2. The mechanical smoke exhaust and air supply system for garages according to claim 1 is characterized by: The air outlet end of the air supply fan is connected to the underground garage through an air supply duct, and a double-layer louver air supply outlet is arranged on the end of the air supply duct.

3. The mechanical smoke exhaust and air supply system for garages according to claim 2 is characterized in that: An air supply temperature control solenoid valve is provided on the air supply duct, and the air supply temperature control solenoid valve is electrically connected to the air supply controller.

4. The mechanical smoke exhaust and air supply system for garages according to claim 1 or 3, characterized in that: The air inlet end of the exhaust fan is connected to the underground garage through an exhaust duct, and a plurality of single-layer louver exhaust ports are arranged on the exhaust duct.

5. The mechanical smoke exhaust and air supply system for garages according to claim 4 is characterized in that: An exhaust temperature control solenoid valve is arranged on the exhaust duct, and the exhaust temperature control solenoid valve is electrically connected to the exhaust controller.

6. The mechanical smoke exhaust and air supply system for garages according to claim 1 is characterized by: The height of the CO sensor from the floor is 1800 mm to 2400 mm.

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