Emergency smoke exhaust system
By designing an emergency smoke exhaust system and using emergency power supplies and spraying devices, the problem of existing smoke exhaust devices relying on AC power during fires is solved, and the effect of effectively ejecting thick smoke and eliminating smoke while the power is cut off.
Patent Information
- Application Number
- CN202421438396.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-21
- Publication Date
- 2025-03-21
- Estimated Expiration
- 2034-06-21
AI Technical Summary
The existing smoke exhaust device relies on traditional AC power when a fire occurs. The power supply cannot work after it is cut off, and the smoke removal effect is poor, resulting in thick smoke spreading and causing environmental pollution.
An emergency smoke exhaust system is designed, including a smoke exhaust fan, a smoke exhaust pipe, an emergency power supply and a spray device. The DC battery and an inverter are used to ensure that the system can still operate when the AC power is cut off, and the water curtain is used to eliminate smoke from the water curtain.
It is realized that when the AC power is cut off, the smoke exhaust fan can operate normally, generate negative pressure to discharge thick smoke, and eliminate smoke through the water curtain of the spray device, significantly improving the effect of extinguishing fire and smoke removal.
Smart Images
Figure CN222651544U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of smoke exhaust devices, in particular to an emergency smoke exhaust system. Background Art
[0002] In recent years, fires have occurred frequently and caused a large number of casualties. During these fires, a lot of thick smoke will be generated. In a confined space, if the thick smoke cannot be discharged in time, it will be inhaled by the human body and endanger life. The existing smoke exhaust device relies on traditional AC power supply. Once the power supply is cut off when a fire occurs, it will not work. Moreover, the existing fire-fighting equipment only has the function of smoke exhaust. However, even if these thick smoke are discharged, they cannot be eliminated. After spreading, they will pollute the environment around the fire scene, and the fire extinguishing and smoke elimination effect is not good. Summary of the invention
[0003] In view of the deficiencies in the prior art, the utility model provides an emergency smoke exhaust system to solve the problems that the smoke exhaust device in the traditional method has a poor smoke elimination effect and relies on a traditional AC power supply during use.
[0004] The technical solution of the utility model is: an emergency smoke exhaust system, including a smoke exhaust fan, a smoke exhaust pipe, an emergency power supply and a spray device, the smoke exhaust pipe is provided with a smoke exhaust pipe inlet and a smoke exhaust pipe outlet, the smoke exhaust pipe inlet is arranged indoors, the smoke exhaust pipe outlet is arranged outdoors, the smoke exhaust fan is arranged at the outlet of the smoke exhaust pipe, and the spray device is arranged at the outlet of the smoke exhaust fan.
[0005] Preferably, the emergency power supply is a DC battery and includes an inverter.
[0006] Preferably, the emergency smoke exhaust system also includes a control device and a smoke alarm. The control device is electrically connected to the smoke exhaust fan, emergency power supply, sprinkler device and smoke alarm respectively. The emergency power supply supplies power to the entire emergency smoke exhaust system. The control device controls the start and stop of the smoke exhaust fan and sprinkler device, and the smoke alarm feeds back signals to the control device.
[0007] As a further preference, the smoke alarm is arranged on the indoor ceiling.
[0008] Preferably, the inlet of the smoke exhaust duct is arranged at a high position on the indoor ceiling or wall.
[0009] Preferably, the smoke exhaust fan is an axial flow fan.
[0010] Preferably, the smoke exhaust fan is a centrifugal fan.
[0011] Preferably, the spray device is a high-pressure spray device provided with an external water supply interface.
[0012] As a further preference, the spray head of the spray device is directed toward the outdoors and is inclined.
[0013] The beneficial effects of the utility model are as follows: the utility model has a reasonable structural design, the smoke exhaust fan can be operated in an emergency situation of cutting off the power supply to realize negative pressure smoke exhaust, and water curtain smoke elimination can be realized at the outlet, so the fire extinguishing and smoke elimination effect is good.
[0014] The utility model has a built-in DC storage battery and is equipped with an inverter when the AC power supply is cut off, so that the smoke exhaust fan can be guaranteed to operate normally and the effect of negative pressure smoke exhaust can be achieved.
[0015] The utility model arranges a spray device at the outlet of the smoke exhaust fan to spray the exhausted smoke to eliminate smoke, thereby preventing a large amount of thick smoke from diffusing into the surrounding environment after being exhausted, and the smoke elimination effect is good. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is a schematic diagram of the structural relationship of the utility model.
[0017] Figure 2 It is a control relationship connection block diagram of the utility model.
[0018] Description of labels:
[0019] 1: Inlet of smoke exhaust duct; 2: Smoke exhaust duct; 3: Outlet of smoke exhaust duct; 4: Control device; 5: Smoke exhaust fan; 6: Emergency power supply; 6-1: DC battery; 6-2: Inverter; 7: Sprinkler head; 8: Sprinkler device; 9: Smoke alarm. DETAILED DESCRIPTION
[0020] The utility model is further described below in conjunction with the accompanying drawings and embodiments.
[0021] like Figure 1-2 As shown, an emergency smoke exhaust device includes a smoke exhaust fan 5, a smoke exhaust pipe 2, an emergency power supply 6 and a spray device 8. The smoke exhaust pipe 2 is provided with a smoke exhaust pipe inlet 1 and a smoke exhaust pipe outlet 3. The smoke exhaust pipe inlet 1 is arranged indoors, and the smoke exhaust pipe outlet 3 is arranged outdoors. The smoke exhaust fan 5 is arranged at the smoke exhaust pipe outlet 3, and the spray device 8 is arranged at the outlet of the smoke exhaust fan 5.
[0022] In this embodiment, the emergency power supply 6 is a DC battery 6-1, and includes an inverter 6-2. The inverter 6-2 is connected to the DC battery 6-1 and can convert DC into AC to ensure the normal operation of the smoke exhaust fans 5 and the spray device 8 of the system.
[0023] In this embodiment, the emergency smoke exhaust system also includes a control device 4 and a smoke alarm 9. The control device 4 is electrically connected to the smoke exhaust fan 5, the emergency power supply 6, the sprinkler device 8, and the smoke alarm 9, respectively. The emergency power supply 6 supplies power to the entire emergency smoke exhaust system. The control device 4 controls the start and stop of the smoke exhaust fan 5 and the sprinkler device 8, and the smoke alarm 9 feeds back signals to the control device 4.
[0024] In this embodiment, the smoke alarm 9 is arranged on the ceiling of the room to sense whether there is smoke or fire in the room.
[0025] In this embodiment, the inlet 1 of the smoke exhaust duct is arranged at a high place on the ceiling or wall of the room. Generally, smoke floats above the room. The inlet 1 of the smoke exhaust duct is arranged at a high place on the ceiling or wall of the room, which is conducive to sucking away the thick smoke floating in the room.
[0026] In this embodiment, the smoke exhaust fan 5 is an axial flow fan.
[0027] In this embodiment, the exhaust fan 5 is a centrifugal fan. The exhaust fan 5 can be selected as an axial flow fan or a centrifugal fan according to the actual installation environment. The main purpose is to generate negative pressure in the exhaust pipe 2, so as to suck the smoke into the exhaust pipe 2 and finally exhaust it by the exhaust fan 5.
[0028] In this embodiment, the spray device 8 is a high-pressure spray device, which is provided with an external water supply interface, which is connected to tap water and is used to provide water for the spray device 8. When a fire occurs, the tap water will not be cut off, so the normal operation of the spray device 8 can be guaranteed.
[0029] In this embodiment, the spray head 7 of the spray device 8 is oriented toward the outdoors and is inclined. The spray head 7 is arranged in this way to avoid smoke leakage and achieve a good smoke elimination effect.
[0030] Working principle: When a fire occurs, the smoke alarm 9 senses the smoke and sends an alarm signal to the control device 4. The control device 4 is an existing commonly used controller, which is not within the protection scope of this utility model and will not be described in detail here. The control device 4 sends a signal to the smoke exhaust fan 5 and the spray device 8. The smoke exhaust fan 5 rotates to form a negative pressure in the smoke exhaust duct 2. The thick smoke in the room is sucked into the smoke exhaust duct 2 and discharged through the smoke exhaust fan 5. At the outlet of the smoke exhaust fan 5, the spray device 8 works and the spray head 7 performs high-pressure spraying to achieve smoke elimination.
[0031] In the description of the utility model specification, it is necessary to understand that the directions or positional relationships indicated by the terms "exit", "entrance", "high place", "outside", etc. are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the utility model.
[0032] In the present invention, unless otherwise clearly specified and limited, the term "connection" and other terms should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0033] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.
Claims
1. An emergency smoke exhaust system, characterized in that The invention comprises a smoke exhaust fan (5), a smoke exhaust pipe (2), an emergency power supply (6) and a spray device (8), wherein the smoke exhaust pipe (2) is provided with a smoke exhaust pipe inlet (1) and a smoke exhaust pipe outlet (3), wherein the smoke exhaust pipe inlet (1) is arranged indoors, and the smoke exhaust pipe outlet (3) is arranged outdoors, the smoke exhaust fan (5) is arranged at the smoke exhaust pipe outlet (3), and the spray device (8) is arranged at the outlet of the smoke exhaust fan (5).
2. An emergency smoke exhaust system according to claim 1, characterized in that The emergency power supply (6) is a DC battery (6-1) and includes an inverter (6-2).
3. An emergency smoke exhaust system according to claim 1, characterized in that The emergency smoke exhaust system further comprises a control device (4) and a smoke alarm (9). The control device (4) is electrically connected to the smoke exhaust fan (5), the emergency power supply (6), the sprinkler device (8), and the smoke alarm (9), respectively. The emergency power supply (6) supplies power to the entire emergency smoke exhaust system. The control device (4) controls the start and stop of the smoke exhaust fan (5) and the sprinkler device (8), and the smoke alarm (9) feeds back a signal to the control device (4).
4. An emergency smoke exhaust system according to claim 3, characterized in that The smoke alarm (9) is arranged on the indoor ceiling.
5. An emergency smoke exhaust system according to claim 1, characterized in that The inlet (1) of the smoke exhaust duct is arranged at a high position on the indoor ceiling or wall.
6. An emergency smoke exhaust system according to claim 1, characterized in that The smoke exhaust fan (5) is an axial flow fan.
7. An emergency smoke exhaust system according to claim 1, characterized in that The smoke exhaust fan (5) is a centrifugal fan.
8. An emergency smoke exhaust system according to claim 1, characterized in that The spray device (8) is a high-pressure spray device (8) and is provided with an external water supply interface.
9. An emergency smoke exhaust system according to claim 8, characterized in that The spray head (7) of the spray device (8) is oriented toward the outdoors and is inclined.