Intelligent ventilation device for green building

By using a smoke sensor to monitor and an electric winder to control the ventilation system, combined with activated carbon filtration and green plant ventilation, the problem of smoke diffusion caused by fixed ventilation equipment is solved, ventilation efficiency and air quality are improved, and the comfort and environmental protection goals of green buildings are achieved.

CN121252188BActive Publication Date: 2026-04-21POWERCHINA ZHONGNAN ENG
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2025-12-05
Publication Date
2026-04-21

AI Technical Summary

Technical Problem

Existing ventilation equipment is mostly fixed and lacks flexibility, causing smoke to spread in the space and making it difficult to remove quickly. As a result, the overall ventilation efficiency is low and indoor air quality cannot be improved in a timely manner.

Method used

The system employs an intelligent ventilation device, including a fan, an electric winder, an exhaust duct, and an intake duct. It monitors the smoking area using a smoke sensor and controls the electric winder to move its cylinder closer to the smoking area. Combined with activated carbon filtration and air supply from green plants, it quickly removes smoke and introduces fresh air, reducing its spread.

Benefits of technology

It improves the efficiency of flue gas extraction, enhances the timely improvement of indoor air quality, improves ventilation efficiency, and increases comfort through green plant ventilation, promotes plant growth, and achieves green and environmentally friendly goals.

✦ Generated by Eureka AI based on patent content.

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Abstract

This invention relates to the field of building ventilation, and more particularly to an intelligent ventilation device for green buildings, comprising a fan, an exhaust duct 1, an exhaust duct 2, and an air inlet duct 1; the fan is installed on the ceiling above the smoking area; the fan is connected to the exhaust duct 1, which connects to the outside; the fan is connected to the exhaust duct 2; and the fan is connected to the air inlet duct 1, which also connects to the outside. By moving closer to the smoking area via a fixed ring and a cylinder, the exhaust vents can quickly draw away smoke during ventilation, and fresh air is delivered to the vicinity of the smoking area through the exhaust ducts, reducing the diffusion of smoke to the surroundings and improving the smoke extraction effect. This avoids the disadvantages of smoke generated from smoking needing to reach the ventilation equipment with the airflow before being discharged outdoors, resulting in slow smoke extraction, low overall ventilation efficiency, and inability to promptly improve indoor air quality.
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Description

Technical Field

[0001] This invention relates to the field of building ventilation, and more particularly to an intelligent ventilation device for green buildings. Background Technology

[0002] Building ventilation uses ventilation equipment to bring fresh outdoor air into the room and expel stale indoor air to the outside, thereby meeting the need for continuously fresh indoor air.

[0003] To maintain consistently fresh air in indoor smoking areas, ventilation equipment is typically installed near these areas to supply and exhaust air, creating air circulation and thus refreshing the air. However, most existing ventilation equipment is fixed and lacks flexibility. When people smoke in the smoking area, the smoke spreads and flows throughout the space, only being extracted and discharged outdoors when it reaches the ventilation equipment. This process makes it difficult to quickly remove the smoke, resulting in low overall ventilation efficiency and an inability to promptly improve indoor air quality.

[0004] In summary, this application proposes an intelligent ventilation device for green buildings, which improves the aforementioned technical problems. Summary of the Invention

[0005] To overcome the shortcomings of existing ventilation equipment, which is mostly fixed and lacks flexibility, and where flue gas spreads and flows throughout the space during ventilation, making it difficult to remove the flue gas quickly and resulting in low overall ventilation efficiency, this invention provides an intelligent ventilation device for green buildings.

[0006] The technical solution is as follows: A smart ventilation device for green buildings includes a fan; the fan is installed on the ceiling above the smoking area; the fan is connected to an exhaust duct 1 connected to the outside; the fan is connected to an exhaust duct 2; the fan is connected to an air inlet duct 1 connected to the outside; the fan is connected to an air inlet duct 2; it also includes electric winders; the fan is equipped with several electric winders arranged in a circular array; each electric winder is wound with a traction rope; all traction ropes are fixed to a fixing ring; the exhaust duct 2 and the air inlet duct 2 are corrugated pipes; a cylinder is fixed to the fixing ring, and the exhaust duct 2 is connected to the cylinder; several exhaust holes are opened at the bottom of the cylinder; a smoke sensor is installed at the bottom of the cylinder; a filter box filled with activated carbon is installed on the cylinder; and an air supply unit for delivering fresh air is connected to the fixing ring.

[0007] As a preferred option, the inlet of the air inlet duct extends to the outdoor planting box.

[0008] Preferably, the air supply unit includes a vertical pipe, a ring pipe, and an air outlet pipe; a fixed ring is fixedly connected to the vertical pipe, which is connected to the air inlet pipe; the vertical pipe is connected to the ring pipe; and the ring pipe is connected to several air outlet pipes arranged in a ring array.

[0009] Preferably, it also includes an arc-shaped plate; the cylinder is fixedly connected to the arc-shaped plate located below the air outlet duct.

[0010] Preferably, the air outlet duct is inclined upwards.

[0011] As a preferred embodiment, it also includes a round pipe and an arc-shaped flexible hose; the opening of the exhaust pipe extends to the outdoor planting box; the exhaust pipe is connected to several arc-shaped flexible hoses; each arc-shaped flexible hose is connected to a round pipe that is fixed to the outdoor planting box; the round pipe has several exhaust holes.

[0012] As a preferred option, a filter screen is installed at the inlet of the air inlet duct.

[0013] Preferably, it also includes a delivery pipe and a rectangular pipe network; each arc-shaped flexible hose is connected to a delivery pipe that is fixed to the outdoor planting box; the arc-shaped flexible hose is equipped with an electrically controlled three-way valve, one output port of which is connected to the round pipe and the other output port is connected to the delivery pipe; all delivery pipes are connected to a rectangular pipe network, and the rectangular pipe network is located inside the soil of the outdoor planting box; the rectangular pipe network has several through holes.

[0014] Preferably, it also includes an irrigation pipe; the rectangular pipe network is connected to the irrigation pipe that is connected to the external irrigation system; the irrigation pipe is equipped with a solenoid valve.

[0015] Preferably, miniature elastic valve plates are installed inside the through holes of the rectangular pipe network.

[0016] The beneficial effects are: by moving the fixed ring and cylinder closer to the smoking area, the exhaust vents can quickly remove the smoke during ventilation, and fresh air is delivered to the vicinity of the smoking area through the exhaust duct, reducing the spread of smoke to the surroundings and improving the smoke removal effect. This avoids the disadvantage that smoke generated by smoking needs to reach the ventilation equipment with the air flow before it can be discharged outdoors, which makes it difficult to remove the smoke quickly, resulting in low overall ventilation efficiency and inability to improve indoor air quality in a timely manner.

[0017] By extending the inlet of the air inlet duct to the outdoor planting box, when the fan supplies outside air, it can deliver air with higher oxygen content from the surrounding green plants into the smoking area, thereby increasing people's comfort and improving the overall air quality of ventilation. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the intelligent ventilation device for green buildings disclosed in this invention;

[0019] Figure 2 This is a schematic diagram of the structure of the fan, exhaust pipe one, exhaust pipe two, air inlet pipe one, electric winder, fixing ring and cylinder assembly disclosed in this invention;

[0020] Figure 3 This is a schematic diagram of the air supply unit structure disclosed in this invention;

[0021] Figure 4 This is a schematic diagram of the internal structure of the cylinder disclosed in this invention;

[0022] Figure 5 This is a schematic diagram of the structure of the exhaust pipe, the arc-shaped flexible hose, and the rectangular pipe network combination disclosed in this invention;

[0023] Figure 6 This is a schematic diagram of the structure of the combination of round pipe, arc-shaped flexible hose, delivery pipe, rectangular pipe network and irrigation pipe disclosed in this invention.

[0024] Explanation of reference numerals in the attached diagram: 1-Fan, 2-Exhaust duct one, 3-Exhaust duct two, 4-Inlet duct one, 5-Inlet duct two, 6-Electric winder, 7-Traction rope, 8-Fixing ring, 9-Cylinder, 10-Filter box, 51-Vertical pipe, 52-Ring pipe, 53-Outlet pipe, 111-Arc plate, 201-Round pipe, 202-Arc hose, 211-Conveying pipe, 212-Rectangular pipe network, 213-Irrigation pipe, 91-Exhaust hole, 20101-Exhaust hole, 20201-Electrically controlled three-way valve, 21201-Through hole, 21301-Solenoid valve, 200-Outdoor planting box. Detailed Implementation

[0025] The present invention will be further described below with reference to the embodiments shown in the accompanying drawings.

[0026] Example 1: An intelligent ventilation device for green buildings, referring to... Figures 1-6 As shown, it includes a fan 1, an exhaust duct 1 2, an exhaust duct 2 3, an air inlet duct 1 4, and an air inlet duct 2 5; the fan 1 is installed on the ceiling above the smoking area; the fan 1 is connected to the exhaust duct 1 2, and the exhaust duct 1 2 is connected to the outside; the fan 1 is connected to the exhaust duct 2 3; the fan 1 is connected to the air inlet duct 1 4, and the air inlet duct 1 4 is connected to the outside; the fan 1 is connected to the air inlet duct 2 5.

[0027] It also includes an electric winder 6, a traction rope 7, a fixing ring 8, a cylinder 9, a filter box 10, and an air supply unit; four electric winders 6 arranged in a circular array are installed on the lower side of the fan 1. Each electric winder 6 consists of a motor and a winding roller, with the motor driving the winding roller to rotate; each electric winder 6 winds up a traction rope 7; all the traction ropes 7 are fixedly connected to a fixing ring 8; the exhaust pipe 2 3 and the air inlet pipe 2 5 are corrugated pipes; the cylinder 9 is fixedly connected to the middle of the fixing ring 8, and the exhaust pipe 2 3 is connected to the cylinder 9; several exhaust holes 91 are opened at the bottom of the cylinder 9; a smoke sensor is installed at the bottom of the cylinder 9; a filter box 10 is installed inside the cylinder 9, and the filter box 10 is filled with activated carbon; the fixing ring 8 is connected to the air supply unit.

[0028] The inlet of air inlet 4 extends to the outdoor planting box 200, delivering the oxygen-rich air from the surrounding greenery into the smoking area, thereby increasing people's comfort and improving the overall ventilation and air quality.

[0029] The air supply unit includes a vertical pipe 51, a ring pipe 52, and an air outlet pipe 53; the vertical pipe 51 is fixedly connected to the fixing ring 8, and the vertical pipe 51 is connected to the air inlet pipe 5; the vertical pipe 51 is connected to the ring pipe 52; the ring pipe 52 is connected to a number of air outlet pipes 53 arranged in a ring array.

[0030] It also includes an arc-shaped plate 111; the lower part of the cylinder 9 is fixed with an arc-shaped plate 111, and the arc-shaped plate 111 is located below the air outlet pipe 53. The arc-shaped plate 111 can gather the gas containing smoke, making it easier for the exhaust hole 91 to extract it. The arc-shaped plate 111 also separates the exhaust hole 91 and the air outlet pipe 53, preventing the fresh air sent in by the air outlet pipe 53 from being directly drawn away by the exhaust hole 91, thereby improving the ventilation effect of the air in the smoking area.

[0031] The air outlet duct 53 is set at an upward angle to direct the fresh air into the room away from the exhaust vent 91, preventing the fresh air from being directly drawn away.

[0032] It also includes a round pipe 201 and an arc-shaped flexible hose 202; the opening of the exhaust pipe 2 extends to the outdoor planting box 200; the exhaust pipe 2 is connected to several arc-shaped flexible hoses 202; each arc-shaped flexible hose 202 is connected to a round pipe 201, and the round pipe 201 is fixedly connected to the outdoor planting box 200; the round pipe 201 has several exhaust holes 20101.

[0033] The inlet of air inlet duct 4 is equipped with a filter screen to filter impurities from the drawn-in air and ensure the flow of fresh air.

[0034] The working steps of the above embodiment are as follows: When the indoor smoking area is ventilated, the fan 1 is controlled to work, and the indoor polluted air is drawn away through the exhaust pipe 2 3 and discharged to the outside through the exhaust pipe 1 2. At the same time, the outdoor air is drawn in through the air inlet pipe 1 4 and transported to the room through the air inlet pipe 2 5, thereby realizing the air circulation and renewal in the smoking area. However, most of the existing ventilation equipment is fixed and lacks flexibility. When people smoke, the smoke will spread and circulate throughout the space. It can only be discharged to the outside when the smoke reaches the ventilation equipment with the air flow. This process makes it difficult to quickly remove smoke, resulting in low overall ventilation efficiency and an inability to improve indoor air quality in a timely manner. Therefore, in use, the smoke sensor at the bottom of the cylinder 9 can monitor the smoking area. When the fan 1 is operating normally, it extracts polluted indoor air through the exhaust port 91. As the polluted air passes through the cylinder 9, it passes through the filter box 10 inside the cylinder 9, where it is filtered and purified by the activated carbon. Then it passes through the exhaust pipe 2 3 and finally exits outdoors through the exhaust pipe 1 2. The air inlet pipe 2 5... When supplying fresh air, the second air inlet duct 5 sequentially introduces air into the vertical duct 51 and the annular duct 52, and then delivers it to the room through the outlet duct 53, thereby achieving air renewal in the smoking area. During operation, when the smoke sensor at the bottom of the cylinder 9 detects someone smoking, it controls all electric retractors 6 to simultaneously release the traction rope 7, causing the fixing ring 8 and the cylinder 9 to move down closer to the smoking area. Thus, during smoking, the exhaust port 91 can quickly extract the smoke and deliver fresh air to the vicinity of the smoking area through the outlet duct 53, reducing the diffusion of smoke to the surroundings and improving smoke extraction efficiency. This design achieves a separation effect, thus avoiding the drawback that smoke generated from smoking needs to travel with the airflow to reach the ventilation equipment before it can be discharged outdoors, making it difficult to quickly remove the smoke and resulting in low overall ventilation efficiency, which fails to improve indoor air quality in a timely manner. At the same time, an arc-shaped plate 111 is provided on the surface of the cylinder 9. The arc-shaped plate 111 can gather the smoke-containing gas, making it easier for the exhaust hole 91 to extract it. The arc-shaped plate 111 also separates the exhaust hole 91 and the air outlet duct 53, preventing the fresh air brought in by the air outlet duct 53 from being directly drawn away by the exhaust hole 91, thereby improving the ventilation effect of the smoking area.

[0035] Furthermore, as the device continues to be used, when the activated carbon in the filter box 10 reaches saturation, its filtration and purification capabilities will fail. Therefore, regular maintenance is required during use. By periodically controlling the electric rewinder 6 to release the traction rope 7, the fixing ring 8 and the cylinder 9 are moved down. Then, the bottom of the cylinder 9 is opened manually to disassemble the filter box 10 inside and replace the activated carbon. The overall operation is convenient.

[0036] Meanwhile, considering that existing buildings often plant greenery outdoors to promote the overall green and environmentally friendly concept and improve the quality of life for residents, by extending the inlet of air inlet duct 4 to the outdoor planting box 200, when the fan 1 supplies outside air, it can send the oxygen-rich air from the surrounding greenery into the smoking area, thereby increasing people's comfort and improving the overall air quality of ventilation. In addition, due to people's respiration, the carbon dioxide content in indoor air is usually higher than that outside. Therefore, when exhaust duct 2 extracts indoor air and filters and purifies it through activated carbon in filter box 10, the air with higher carbon dioxide content is passed through exhaust duct 2 into the curved flexible tube 202 and round tube 201, and discharged from the exhaust hole 20101 of round tube 201, so that it can be directly discharged into the greenery in the outdoor planting box 200, improving the photosynthesis of greenery and promoting its growth. This method not only effectively utilizes carbon dioxide resources, but also enhances the self-regulation capacity of the ecosystem, which is highly consistent with the green building concept, thereby promoting the realization of the overall green and environmentally friendly goal.

[0037] Example 2: Based on Example 1, referring to... Figures 5-6 As shown, it also includes a delivery pipe 211 and a rectangular pipe network 212; each arc-shaped flexible hose 202 is connected to a delivery pipe 211, and the delivery pipe 211 is fixedly connected to the outdoor planting box 200; the arc-shaped flexible hose 202 is equipped with an electrically controlled three-way valve 20201, one output port of the electrically controlled three-way valve 20201 is connected to the round pipe 201, and the other output port is connected to the delivery pipe 211; all the delivery pipes 211 are connected to a rectangular pipe network 212, and the rectangular pipe network 212 is located inside the soil of the outdoor planting box 200; the rectangular pipe network 212 has several through holes 21201.

[0038] It also includes an irrigation pipe 213; the rectangular pipe network 212 is connected to the irrigation pipe 213, and the irrigation pipe 213 passes through the outdoor planting box 200 and is connected to the external irrigation system; the irrigation pipe 213 is equipped with an electromagnetic valve 21301.

[0039] The through hole 21201 of the rectangular pipe network 212 is equipped with a miniature elastic valve plate. When the rectangular pipe network 212 is pressurized, the valve plate is opened to allow normal air or water to flow out. When the pressure drops, the valve plate quickly returns to its original position under the action of the spring, tightly closing the through hole 21201, thereby cutting off the passage from the outside to the inside of the pipe and preventing soil backflow.

[0040] Based on the above embodiment 1, considering that the soil in the outdoor planting box 200 is prone to compaction during plant growth, making it difficult for outside air to contact the plant roots, affecting root respiration and thus plant growth; therefore, after midnight and for more than half an hour without any smoking detected in the smoking area, the electrically controlled three-way valve 20201 on the curved flexible hose 202 is activated to disconnect the curved flexible hose 202 from the round pipe 201 and connect the curved flexible hose 202 to the delivery pipe 211. As the fan 1 continues to operate, the exhaust pipe 2 introduces indoor air into the delivery pipe 211, which then introduces it into the rectangular pipe network 212 and blows it out through the through hole 21201. The rectangular pipe network 212 is located inside the soil of the outdoor planting box 200, allowing air to enter the soil through the through hole 21201, ensuring full contact with the plant roots, thereby increasing the oxygen content in the soil and promoting root respiration; After ventilating continuously for five minutes, control the fan 1 to stop running. Repeat the ventilation every two hours until daytime. Control the electrically controlled three-way valve 20201 to connect the arc-shaped hose 202 to the round pipe 201 and disconnect the connection between the arc-shaped hose 202 and the delivery pipe 211 to perform indoor ventilation during the day. At the same time, during the growth of the green plants in the outdoor planting box 200, irrigation can be carried out at regular intervals. Control the opening of the solenoid valve 21301 on the irrigation pipe 213, and then control the external irrigation system to send water through the irrigation pipe 213 into the rectangular pipe network 212, and into the soil through the through hole 21201, thereby irrigating the green plants in the outdoor planting box 200. After two minutes of irrigation, control the closing of the solenoid valve 21301 to stop irrigation. It should be noted that during irrigation, the connection between the arc-shaped hose 202 and the delivery pipe 211 needs to be disconnected to prevent water from entering the arc-shaped hose 202.

[0041] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural or procedural transformations made based on the content of the present invention specification, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. A smart ventilation device for green buildings, comprising a fan (1); the fan (1) is installed on the ceiling above a smoking area; the fan (1) is connected to an exhaust pipe (2) connected to the outside; the fan (1) is connected to an exhaust pipe (3); the fan (1) is connected to an air inlet pipe (4) connected to the outside; the fan (1) is connected to an air inlet pipe (5); characterized in that, It also includes an electric winder (6); the fan (1) is equipped with several electric winders (6) arranged in a ring array; each electric winder (6) is wound with a traction rope (7); all the traction ropes (7) are fixed together to a fixed ring (8); the exhaust pipe (3) and the air inlet pipe (5) are corrugated pipes; the fixed ring (8) is fixed to a cylinder (9), and the exhaust pipe (3) is connected to the cylinder (9); the bottom of the cylinder (9) has several exhaust holes (91); a smoke sensor is installed at the bottom of the cylinder (9); a filter box (10) filled with activated carbon is installed on the cylinder (9); the fixed ring (8) is connected to an air supply unit for delivering fresh air; The air supply unit includes a vertical pipe (51), a ring pipe (52) and an air outlet pipe (53); a fixed ring (8) is fixedly connected to the vertical pipe (51) which is connected to the air inlet pipe (5); the vertical pipe (51) is connected to the ring pipe (52); the ring pipe (52) is connected to several air outlet pipes (53) arranged in a ring array.

2. The intelligent ventilation device for green buildings according to claim 1, characterized in that, The inlet of the air inlet pipe (4) extends to the outdoor planting box (200).

3. The intelligent ventilation device for green buildings according to claim 1, characterized in that, It also includes an arc plate (111); the cylinder (9) is fixed to the arc plate (111) located below the air outlet pipe (53).

4. The intelligent ventilation device for green buildings according to claim 1, characterized in that, The air outlet duct (53) is set at an upward angle.

5. The intelligent ventilation device for green buildings according to claim 1, characterized in that, It also includes a round pipe (201) and an arc-shaped flexible hose (202); the opening of the exhaust pipe (2) extends to the outdoor planting box (200); the exhaust pipe (2) is connected to several arc-shaped flexible hoses (202); each arc-shaped flexible hose (202) is connected to a round pipe (201) fixed on the outdoor planting box (200); the round pipe (201) has several exhaust holes (20101).

6. The intelligent ventilation device for green buildings according to claim 1, characterized in that, A filter screen is installed at the inlet of the air inlet pipe (4).

7. The intelligent ventilation device for green buildings according to claim 5, characterized in that, It also includes a delivery pipe (211) and a rectangular pipe network (212); each arc-shaped hose (202) is connected to a delivery pipe (211) fixed on an outdoor planting box (200); the arc-shaped hose (202) is equipped with an electrically controlled three-way valve (20201), one output port of the electrically controlled three-way valve (20201) is connected to the round pipe (201), and the other output port is connected to the delivery pipe (211); all the delivery pipes (211) are connected to a rectangular pipe network (212), and the rectangular pipe network (212) is located inside the soil of the outdoor planting box (200); the rectangular pipe network (212) has several through holes (21201).

8. The intelligent ventilation device for green buildings according to claim 7, characterized in that, It also includes an irrigation pipe (213); a rectangular pipe network (212) is connected to an irrigation pipe (213) that is connected to an external irrigation system; and an electromagnetic valve (21301) is installed on the irrigation pipe (213).

9. A smart ventilation device for green buildings according to any one of claims 7-8, characterized in that, Miniature elastic valve plates are installed inside the through holes (21201) of the rectangular pipe network (212).

Citation Information

Patent Citations

  • Ventilation system with controllable air input and output

    CN102840643A

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