JP3995932B2 - Air purification equipment for parking lots using plants - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an air purification device for purifying air in a parking lot, and by passing contaminated air through soil in which a plant is rooted, the biochemicals of microorganisms that inhabit the plant root and the vicinity thereof are provided. The present invention relates to a device that removes pollutants and purifies the air by a natural action and an action of adsorbing soil particles and a function of dissolving moisture in the soil.
[0002]
[Prior art]
JP-A-11-290437, JP-A-2000-166388, JP-A-2001-37856 discloses methods and apparatuses for removing pollutants in the air by passing contaminated air through the soil in which the plant is rooted. And the like. Japanese Patent Laid-Open Nos. 5-9829 and 7 disclose a method or apparatus for purifying air discharged from a parking lot by sucking air in the parking lot with a fan, passing it through soil and releasing it into the atmosphere. -24242 and the like.
[0003]
[Problems to be solved by the invention]
This invention is an air purification device for a parking lot that removes pollutants by allowing air to pass through the soil in which the plant is rooted, and can purify contaminated air more efficiently with a small device, An object of the present invention is to provide the above-mentioned apparatus that can prevent adverse effects on the growth of plants caused by excessive drying of the soil and that is low in operating cost.
[0004]
[Means for Solving the Problems]
The air purification apparatus for a parking lot using a plant according to the present invention includes an intake duct 11 that opens at the bottom near the floor on the far side of the parking space of the parking lot, and a warehousing detection that is located near the opening of the intake duct. A vegetation chamber 3 provided with at least a part of the sensor 14 and the soil 22 in which the plant 23 is rooted is provided with an air-permeable partition wall 4, and an air chamber adjacent to the air-permeable partition wall of the vegetation chamber. 5, water supply means 15 and 16 to the vegetation chamber 3, a fan 10 having a drive motor for sending air from the intake duct to the air chamber, and while the sensor detects exhaust gas or vehicle Control devices 30 and 31 for driving the motor for a predetermined period of time and stopping the operation of the water supply means in conjunction with the motor .
[0005]
In the portable air purification device, the vegetation chamber 3, the water supply means 15, 16, the air chamber 5, the fan 10 provided with a drive motor, and the controller 30 are accommodated in the outer box 1, and the column 21 supported on the outer box. A light source 24 for supplying light energy to a plant rooted in the soil of the vegetation room 3 is provided at the upper end of the vegetation chamber 3.
[0006]
[Action]
Microorganisms in the soil are symbiotic with the roots of the plants that are rooted in the soil, and the presence of the roots of living plants provides a soil environment in which microorganisms can live. The types of microorganisms that preferentially grow in the soil vary depending on the type of plant that is rooted, and reports on research results on what types of plants can be used to more effectively remove pollutants in the air and water (Eg dracaena, palm). Therefore, based on such research results, by passing the air in the parking lot through the soil that has rooted plants that can more effectively remove pollutants contained in automobile exhaust gas more effectively, Thus, the air can be purified more efficiently.
[0007]
The biggest cause of air pollution in parking lots is exhaust gas emitted from automobiles. When the car engine is stopped, no exhaust gas is generated. Since a car in a parking lot generates exhaust gas by driving the engine only at the time of entering / exiting, the air pollution is less if there is less entering / exiting, and the air pollution is larger if there is more.
[0009]
In the apparatus of the present invention, since the exhaust state of the exhaust gas of the vehicle in the parking lot and the frequency of loading and unloading are detected and the fan that sucks the contaminated air is driven, unnecessary operation of the fan can be avoided. . In addition, by stopping the operation of the water supply device 16 in conjunction with this fan, it is possible to prevent excessive water supply as well as excessive air supply to the soil.
[0010]
Moreover, the apparatus of this invention installs the whole containing the plant 23 in a parking lot, and does not discharge | emit the polluted air in a parking lot outside, but removes the pollutant in air, By the action, a function of absorbing carbon dioxide gas and releasing oxygen can be obtained, and the air in the parking lot can be purified and circulated.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
The present invention will be further described below with reference to embodiments shown in the drawings. The illustrated embodiment can be installed in a parking lot, and includes a light source that supplies light energy necessary for photosynthesis of the plant 23.
[0012]
1 and 2 are a longitudinal sectional view and a transverse sectional view of a purifier used in the embodiment. FIG. 3 is a block diagram including a control system.
[0013]
The purifier shown in the figure is portable, and a caster 2 is provided at the bottom of the outer box 1. A vegetation chamber 3 whose upper surface is open is provided at the top of the outer box 1. The bottom surface of the vegetation chamber is a gas-permeable partition wall formed of a stainless steel plate having a large number of small holes or a synthetic resin plate having through holes in a mesh shape. An air chamber 5 having a side wall and a bottom surface integral with the side wall of the vegetation chamber 3 is formed at the lower portion of the partition wall 4.
[0014]
An air pipe 6 passes through the air chamber 5 from the bottom. The air pipe is connected to a horizontal pipe 7 in the air chamber 5, and four exhaust ports 8 facing upward are opened in the horizontal pipe. ing. Above these exhaust ports, a cover 9 is provided for preventing the ingress of water flowing out of the vegetation chamber 3. The air pipe 6 communicates with a discharge port of a fan 10 with a drive motor disposed at the bottom of the outer box 1. The air supply port of the fan 10 is an air intake duct 11 that penetrates the side surface of the outer box 1, and as shown in FIG. 3, the bottom of the parking space 12 on the back side (the side opposite to the passage) near the floor surface. That is, the opening 13 is formed at the height of the exhaust port of the automobile. A warehousing detection sensor 14 is disposed in the vicinity of the opening. This sensor is, for example, a thermal sensor or chemical sensor that detects exhaust gas from an automobile, a proximity sensor that detects an automobile body, a magnetic sensor, or the like.
[0015]
A water supply pipe 15 is arranged in the longitudinal direction at the center of the vegetation chamber 3. This water supply pipe flows out water from a large number of small holes provided on the peripheral surface. One end of the water supply pipe 15 is connected to a water pump 16 disposed at the bottom of the outer box 1, and the inlet of the water pump communicates with the bottom of a water tank 17 provided in the outer box 1. As shown in FIG. 3, the water tank 17 is provided with a minimum water level sensor 18 for preventing air from being sucked into the water pump 16, and when the water level becomes lower than this sensor, the water pump 16 The power supply circuit 19 is cut off. Further, the water tank 17 is connected to the bottom of the air chamber 5 by a drain pipe 20, and excess water flowing out from the vegetation chamber 3 to the air chamber 5 is returned to the water tank 17 through the drain pipe 20.
[0016]
A support frame 21 is provided at the upper part of the outer box 1, and a fluorescent lamp 24 is provided for supplying light energy to the plant 23 rooted in the soil 22 filled in the vegetation chamber 3 in the support frame.
[0017]
A controller 25 is provided in the outer box 1. The controller includes a switch 26 for turning on / off the drive motor of the fan 10, a switch 27 for turning on / off the water pump 16, a timer 28 for setting the operation time of the fan, and a timer for setting the operation time of the water pump. 29, a timer 29 for setting an operation time interval of the water pump 16, an operation controller 30 for the fan 10, and an operation controller 31 for the water tank 17 are provided. The fan operation controller 30 closes the switch 26 when the warehousing detection sensor 14 detects exhaust gas or an automobile, and opens the switch 26 with a timer 28 time-up signal. The timer 28 starts operation over time from when the sensor 14 detects the automobile body. When the sensor 14 is a sensor that detects exhaust gas, the timer 28 is not provided, and the switch 26 may be opened when the sensor 14 no longer detects exhaust gas.
[0018]
The water pump controller 31 closes the switch 27 at every time interval set by the operation time interval setting timer 32 and sends a signal to the operation time setting timer 29 to start the operation over time. When the operation time setting timer 29 expires, the switch 27 is closed.
[0019]
In the vegetation chamber 3, the roots of the plant 23 are arranged and filled with soil containing fertilizer. The soil does not necessarily need to be natural soil and is preferably selected and used according to the type of plant 23. Water is supplied to the soil 22 by the water pump 16, and excess water passes through the air-permeable partition 4, passes through the drain pipe 20, and is returned to the water tank 17. Thereby, the appropriate wet state in the soil 22 is maintained. The roots of the plant 23 and microorganisms symbiotic with the roots grow in the soil. When a car enters the parking lot, the sensor 14 detects it and the exhaust gas is exhausted or for the time set in the timer 28, the fan 10 is operated and the exhaust gas is closest to the exhaust port. The air is sucked and sent to the air chamber 5. The time set in the timer 28 is set with a margin for the time from when the car enters the parking space until the engine stops. The contaminated air supplied to the air chamber 5 passes through the soil 22, while being purified by the roots of the plant 23, microorganisms in the soil, and wet soil particles, and flows out above the vegetation chamber. The plant 23 illuminated by the fluorescent lamp 24 performs photosynthesis, takes in carbon dioxide in the air, and discharges oxygen. If the car does not enter or leave the parking space, the fan 10 remains stopped, and excess air is not supplied into the soil 22, reducing unnecessary operating costs and excessive soil 22. The danger of drying out can be prevented.
[Brief description of the drawings]
FIG. 1 is a longitudinal sectional view of an embodiment apparatus. FIG. 2 is a transverse sectional view of the embodiment apparatus. FIG. 3 is a block diagram including a control system of the embodiment apparatus.
1 Outer box 3 Vegetation room 4 Bulkhead 5 Air chamber
10 fans
11 Intake pipe
14 Receipt sensor
15 Water supply pipe
16 water pump
21 Support frame
30 Operation controller

Claims (2)

The intake duct (11) that opens to the bottom near the floor on the far side of the parking space in the parking lot, the warehousing detection sensor (14) that is located near the opening of the intake duct, and the plant (23) are rooted. A vegetation chamber (3) provided with a breathable partition wall (4) in at least a part for containing soil (22), and an air chamber (5) adjacent to the breathable partition wall of the vegetation chamber; A means for supplying water to the vegetation chamber (15, 16), a fan (10) having a drive motor for sending air from the intake duct to the air chamber, and while the sensor detects exhaust gas or vehicle And a control device (30, 31) for driving the motor for a predetermined time and stopping the operation of the water supply means in conjunction with the motor . The vegetation chamber (3), the water supply means (15, 16), the air chamber (5), the fan (10) with a drive motor and the controller (30) are accommodated in the outer box (1), and this outer box The air purification device according to claim 1, wherein a light source (24) for supplying light energy to a plant rooted in the soil of the vegetation room is provided at an upper end portion of the supporting column (21).

Images