CN107990262B

CN107990262B - Method for purifying air and hydroponically planting plants by water circulation based on street lamp main body

Info

Publication number: CN107990262B
Application number: CN201711177789.8A
Authority: CN
Inventors: 袁银梅; 贾虎; 孙运兰; 朱宝忠
Original assignee: Anhui University of Technology AHUT
Current assignee: Anhui University of Technology AHUT
Priority date: 2017-11-23
Filing date: 2017-11-23
Publication date: 2020-05-05
Anticipated expiration: 2037-11-23
Also published as: CN107990262A

Abstract

The invention discloses a method for purifying air and hydroponically planting plants by water circulation based on a street lamp main body, and belongs to the field of air purification. The process of purifying air and water planting plants comprises the following steps: the ventilation mechanism is started first, and outside air is introduced; spraying water mist by using a large water mist sprayer, wherein air is sprayed by the large water mist sprayer firstly, so that pollutants in the air are adsorbed by water drops and are discharged along with gathered water liquid; the water mist is discharged through a discharge port on the chassis and enters an inner cavity of a flowerpot liner in the electrostatic water culture mechanism to be used as nutrient solution for plant growth; the water liquid finally flows into a reservoir of the water storage and supply mechanism; the water is supplied to the large water mist sprayer through the water inlet pipe, and the recycling of the purified water is realized. The invention sprays water mist through the water mist sprayer to purify air, and sends sewage to the electrostatic water culture mechanism for plant growth, and meanwhile, the sewage is purified, so that the invention can be recycled, and the purposes of purifying air and beautifying environment are achieved.

Description

Method for purifying air and hydroponically planting plants by water circulation based on street lamp main body

Technical Field

The invention relates to the technical field of air purification, in particular to a method for purifying air and hydroponically planting plants by water circulation based on a street lamp main body.

Background

At present, urban air pollution is a global problem. The international health organization publishes a report: atmospheric pollution is carcinogenic, and more seriously: how to treat the atmospheric pollution is a difficult problem in front of human beings.

Taking our country as an example, the influence range of particulate pollution on the air quality of cities in China is very wide, and the particulate pollution is the primary factor of air pollution of most cities, and in recent years, China takes a plurality of measures in the aspect of air pollution control, such as the calculation work of air pollutant capacity pushed across the country, so that the environmental air quality management level is greatly improved.

On the other hand, urban roads are places where air pollution is intensively generated, wherein pollution sources include a large amount of automobile exhaust and dust on the ground. The urban road is better than the urban blood vessels, has wide distribution and is communicated with all corners of the city, in Chinese patent specification CN201310096593, an air purification street lamp is disclosed, and specifically an air purification device arranged at the bottom of a lamp post comprises a shell, an air suction pump, a plurality of filter screens and a plurality of negative ion filters, wherein the filter screens are detachably connected on the inner wall of the shell, the negative ion filters are arranged between adjacent filter screens, the air suction pump is arranged below the filter screens and connected on the inner wall of the shell, so that the suction and air supply directions are consistent, the suction and air supply efficiency is high, and the air purification efficiency is improved. When the device is used in a city with serious air pollution, the filter screen is easy to be saturated and blocked, if the device is not cleaned in time, the aim of air purification is difficult to achieve, and the device does not have continuous usability.

Chinese patent application 2015109618907 discloses an urban road electrostatic dust removal street lamp system, which comprises a transformer substation and automatic dust removal street lamps uniformly arranged at intervals beside an urban road; all the automatic dust removal street lamps are connected in parallel through cables and then are connected with a transformer substation; the automatic dust removal street lamp comprises a lamp body, a stand column, a photoelectric conversion mechanism and a garbage collection mechanism, wherein the stand column is hollow and is permeable up and down, the stand column is in a cuboid structure in appearance, the bottom end of the stand column is fixed beside a street, and an automatic air guide mechanism, a self-cleaning high-voltage electrostatic dust collection mechanism, a water circulation type dust cleaning mechanism and a distribution box are sequentially arranged in the stand column from top to bottom; the photoelectric conversion mechanism is arranged at the top end of the upright post, the garbage collection mechanism is arranged outside an upper port of the upright post, and the distribution box is positioned at the bottom of the upright post; the scheme sprays water mist with static electricity to adsorb particle pollutants in the air, so that a large amount of water mist exists under the street lamp, and the street lamp cannot be normally used in the daytime.

In conclusion, the air purification device applied to the street lamp at present is mainly poor in purification effect and cannot effectively remove pollutants in air; in addition, the existing street lamp with the air purification device is poor in appearance appreciation and lacks of vitality due to the installation of the air purification device.

Disclosure of Invention

1. Technical problem to be solved by the invention

The invention aims to overcome the defects of poor purification effect and poor ornamental value of an air purification device arranged on a street lamp in the prior art, and provides a method for purifying air and hydroponically planting plants by water circulation based on a street lamp main body. The invention sprays water mist through the water mist sprayer to purify air, and sends sewage to the electrostatic water culture mechanism for plant growth, and meanwhile, the sewage is purified, so that the invention can be recycled, and the purposes of purifying air and beautifying environment are achieved.

2. Technical scheme

In order to achieve the purpose, the technical scheme provided by the invention is as follows:

the invention relates to a method for purifying air and hydroponically culturing plants by water circulation based on a street lamp main body, wherein an air purification mechanism and an electrostatic hydroponic mechanism are arranged on a support of a street lamp, and the air purification and hydroponic plant purification process comprises the following steps:

s1, controlling the ventilation mechanism in the air purification mechanism to start first and introducing outside air;

s2, starting the large water mist sprayer to spray water mist, supplying water to the water inlet pipe in the strut, and spraying air sprayed by the air spraying pipe in the air exchange mechanism by the large water mist sprayer to enable pollutants in the air to be adsorbed by water drops and discharged along with the gathered water liquid;

s3, spraying water mist, discharging the water mist through a discharge port on the chassis, entering a wastewater collection cavity and flowing into a pillar pipe;

s4, feeding the water flowing down from the support pipe into the inner cavity of the flowerpot in the electrostatic water culture mechanism to serve as nutrient solution for plant growth; the electrode plate in the flowerpot liner spontaneously forms an electric field in water, so that the growth of plants can be promoted, the sewage can be purified, and the purified sewage is discharged into the pillar pipe;

s5: the water liquid in the pillar pipe finally flows into a reservoir of the water storage and supply mechanism; after filtration, the water pump extracts upper water liquid, and supplies water to the large water mist sprayer through the water inlet pipe, so that the purified water is recycled.

As a further improvement of the invention, a street lamp body is arranged on a chassis of the air purification mechanism, the large water mist sprayer is in an umbrella shape, a water inlet pipe is connected with the middle part of the large water mist sprayer, a cylindrical curtain is arranged at the lower side of the edge of the large water mist sprayer, the cylindrical curtain is in a grid shape, and an air injection port of the ventilation mechanism is positioned in an annular cavity of the cylindrical curtain.

As a further improvement of the invention, the top of the large water mist sprayer is communicated with a small water mist sprayer which is used for spraying water mist to the disk-shaped silk screen; the disc-shaped wire mesh is fixed above the small water mist sprayer through the disc-mesh bracket.

As a further improvement of the invention, the inner wall of the disk screen bracket is connected with a separation plate, the lower end of the separation plate is connected with the chassis, and an air exhaust gap is reserved between the separation plate and the cylindrical curtain.

As a further improvement of the present invention, the process after step S2 further includes: after entering a gap between the partition plate and the cylindrical curtain, the air sprayed by the large water mist sprayer flows upwards and reaches the lower part of the disc-shaped wire mesh, and the small water mist sprayer sprays and purifies the air; a flow pipe passing through the chassis is arranged between the isolation plate and the shell and used for discharging purified water.

As a further improvement of the invention, the bottom of the chassis is provided with a waste water collecting cavity, discharged sewage flows through the chassis and enters the waste water collecting cavity, and a water outlet of the waste water collecting cavity is communicated with the inner cavity of the pillar pipe.

As a further improvement of the invention, the air exchange mechanism comprises an air suction device which penetrates through the shell and is communicated with the outside, the inner end of the air suction device is connected with an air inlet of an air pump, an air outlet of the air pump is connected with an air spraying pipe, an outlet of the air spraying pipe is positioned below the large water mist sprayer, and an air outlet is arranged on the shell.

As a further improvement of the invention, the electrostatic water culture mechanism comprises a flowerpot and a flowerpot liner connected with a support pipe, wherein the flowerpot liner is provided with a water culture groove, and a grid port is arranged on the support pipe and used for injecting an air purification mechanism into the water culture groove and discharging sewage; and a water culture water outlet is arranged on the pillar pipe and used for discharging water liquid overflowing from the water culture groove.

As a further improvement of the invention, the flowerpot liner mainly comprises a shell and electrode plates arranged on the inner wall of the shell, wherein the electrode plates comprise a copper anode plate and a zinc cathode plate which are arranged at intervals.

As a further improvement of the present invention, in step S5, the reservoir is provided with a filter screen to filter the water, the particles are deposited at the bottom, and the deposit is discharged through a valve at the bottom of the reservoir; the water pump pumps the upper water liquid, and supplies water to the large water mist sprayer and the small water mist sprayer through the water inlet pipe, so that the purified water is recycled.

3. Advantageous effects

Compared with the prior art, the technical scheme provided by the invention has the following beneficial effects:

(1) according to the method for purifying air and hydroponically planting plants by water circulation based on the street lamp main body, the large water mist sprayer sprays water downwards to form a water curtain, smoke and haze particles in the air can be removed, the discharged sewage flows into the electrostatic hydroponics mechanism and can be used for plant growth, the electrode plate is beneficial to decomposition of pollutants in the sewage, plants are promoted to absorb nutrition, the sewage is purified at the same time, recycling can be achieved, the two functions are mutually promoted, the air is purified, and the environment is beautified.

(2) According to the method for purifying air and hydroponics plants by water circulation based on the street lamp main body, the large-area water spray sprayer is arranged for spraying water to purify air in a large area, and can be combined with the cylindrical curtain, so that the air circulation speed is reduced; the water mist forms a water film on the latticed cylindrical curtain, and air can circulate only by penetrating through the water film, so that the contact effectiveness of the air and haze removing water is ensured, and primary air purification is realized; the air passes through the disc-shaped silk screen after purification, and the little water smoke sprinkler purifies its water spray, realizes second grade air purification, has improved air purification effect, can effectively go out pollutant in the air, combines the device and street lamp, can filter the dust removal to the urban air, reduces urban air pollution.

(3) According to the method for purifying air and hydroponically planting plants by water circulation based on the street lamp main body, the electrostatic hydroponics mechanism can be used for planting plants, so that the urban environment is beautified, and meanwhile, the street lamp main body has a certain air purification capacity; in addition, the discharged sewage is used as a plant growth nutrient solution, and the sewage is purified to a certain extent; the electrode plate can generate a certain potential difference, is beneficial to plant growth, and improves the absorption capacity of the electrode plate on pollutants in water.

(4) According to the method for purifying air and hydroponically planting plants by water circulation based on the street lamp main body, the water is supplied by the water storage and supply mechanism, the used water is collected in the water storage tank, the water in the water storage tank is pumped by the water pump to supply water to the water mist sprayer, self circulation can be achieved, energy is saved, the environment is protected, and the method meets the concept requirement of sustainable development of modern cities.

Drawings

FIG. 1 is an installation diagram of an air purification mechanism and a static water culture mechanism of the street lamp of the invention;

FIG. 2 is a schematic structural diagram of an air purification mechanism;

FIG. 3 is a schematic view of the arrangement of the ventilation mechanism and the water mist spraying device;

FIG. 4 is a schematic top view of the internal structure of the air purification mechanism;

FIG. 5 is a schematic structural diagram of an electrostatic water culture mechanism;

FIG. 6 is a schematic cross-sectional structure diagram of an electrostatic water culture mechanism;

FIG. 7 is a schematic diagram of the electrostatic water culture mechanism in a top view;

FIG. 8 is a schematic structural diagram of an embodiment of the present invention;

FIG. 9 is a schematic diagram of air purification and hydroponic plant flow.

The reference numerals in the schematic drawings illustrate:

1. an air purification mechanism; 1-1, a shell; 1-2, a cylindrical curtain; 1-3, disk-shaped silk screen; 1-4, a wire mesh support; 1-5, a flow tube; 1-6, a separation plate; 1-7, an air suction device; 1-8, an air pump; 1-9, a wind spraying pipe; 1-10, a large water mist sprayer; 1-11, small water mist sprayer; 1-12 and an air outlet; 1-13, a chassis; 1-14, a drainage port; 1-15, window panels; 1-16, solar cell slice; 1-17, street lamp body; 1-18 parts of a waste water collecting cavity; 1-19, floor drain;

2. a pillar; 2-1, a strut tube; 2-2, a water inlet pipe;

3. an electrostatic hydroponic mechanism; 3-1, a flowerpot; 3-2, a flowerpot inner container; 3-3, an electrode plate; 3-3-1, copper anode plate; 3-3-2 parts of zinc cathode plates; 3-4, a closure cover plate; 3-5, a water culture water outlet; 3-6, inner wall of electrode plate; 3-7, a gate opening; 3-8, water culture grooves; 3-9, LED street lamp;

4. a water storage and supply mechanism; 4-1, a water reservoir; 4-2, a water suction port; 4-3, a water pump; 4-4, a waste water collecting pipe; 4-5, a valve; 4-6, a hand wheel; 4-7, a drain pipe; 4-8, a filter screen; 4-9 parts of water supply pipe; 4-10, a control rod.

Detailed Description

For a further understanding of the invention, reference should be made to the following detailed description taken in conjunction with the accompanying drawings and examples.

Example 1

With reference to fig. 1, the street lamp with air-purifying and water-planting functions of the embodiment includes an air-purifying mechanism 1 installed on a pillar 2, a lamp body 1-17 of the street lamp is installed on the air-purifying mechanism 1, a pillar tube 2-1 of the pillar 2 is columnar, the interior of the pillar tube is a cavity structure, a housing 1-1 and a chassis 1-13 are arranged in the air-purifying mechanism 1, the chassis 1-13 is connected with the pillar tube 2-1, the housing 1-1 is covered on the chassis 1-13 in a hemispherical shape, and a cavity between the housing 1-1 and the chassis 1-13 is used for accommodating each purifying component. The street lamp body 1-17 can be arranged on the shell 1-1 or the chassis 1-13, and has certain difference with the set height and the application scene. In the embodiment, the street lamp is mainly used as a road street lamp, so that the street lamp bodies 1-17 are arranged on the chassis 1-13. Two street lamp bodies 1-17 can be symmetrically arranged on the chassis 1-13, and can illuminate two sides.

The street lamp bodies 1-17 can be powered by commercial power, and can also be used in combination with solar energy for energy conservation. In the embodiment, the solar cells 1-16 are arranged on the outer wall of the shell 1-1, and when the sun shines, the solar cells 1-16 can store the generated power for the street lamp bodies 1-17 to use at night.

The section of the adopted hemispherical shell 1-1 is an arc-shaped surface, the middle part of the shell is arched upwards, the solar cells 1-16 are distributed at the periphery of the shell 1-1 in rows, the hemispherical structure of the shell can ensure that all parts can contact with sunlight to generate electricity, and meanwhile, rainwater or other sundries can be prevented from being attached to the surface of the shell, and the structure is reasonable.

Referring to fig. 2, the air purification mechanism 1 of the present embodiment further includes a ventilation mechanism and a large water mist sprayer 1-10, the large water mist sprayer 1-10 may be a water mist nozzle, and a water inlet pipe 2-2 in the middle of the large water mist sprayer 1-10 may be connected to a water pump, and water is supplied to the large water mist sprayer 1-10 through the water pump. The ventilation mechanism is used for introducing outside air into the shell 1-1 and then purifying the air through the large water mist sprayer 1-10. The water mist sprayed by the large water mist sprayer 1-10 is gathered on the chassis 1-13, the chassis 1-13 is provided with a discharge opening 1-14, and the sewage flows out through the discharge opening 1-14.

In the embodiment, the electrostatic water culture mechanism 3 is further arranged, the electrostatic water culture mechanism 3 is arranged in the middle section of a support pipe 2-1 in the support 2, the electrode plate 3-3 is arranged in the flowerpot inner container 3-2, and the flowerpot inner container 3-2 collects sewage discharged by the air purification mechanism 1 and is used for electrostatic water culture of plants.

Big water smoke sprayer sprays water downwards, forms the water curtain, can detach the smoke and haze particulate matter in the air, and the sewage that discharges flows into static water planting mechanism, can be used to vegetation, and the plate electrode helps pollutant in the sewage to decompose, promotes the plant and absorbs nutrition, has purified sewage simultaneously, can circulate and use, and both interact mutually promotes, has not only purified the air, has beautified the environment moreover.

Example 2

With reference to fig. 2 and fig. 3, the street lamp with air purifying and hydroponic plant functions of the embodiment is improved by: in the embodiment, a cylindrical curtain 1-2 is arranged on a chassis 1-13 of an air purification mechanism 1, the upper side of the cylindrical curtain is sealed by a large water mist sprayer 1-10, namely the cylindrical curtain 1-2 is arranged on the lower side of the edge of the large water mist sprayer 1-10. The cylindrical curtain 1-2 is formed by combining wire nets, the side walls of the cylindrical curtain are in a grid shape, and the cylindrical curtain can be made of stainless steel wire nets.

The large water mist sprayer 1-10 has a large spraying area, and is combined with the entering air in a large area to purify water mist. Because the silk screen reason, the water smoke can form the water film on the silk screen, because inside air constantly gets into, pressure is great, and in the air passed the water film and entered into the clearance, further guaranteed the air and removed the abundant contact of haze water to the improvement removes haze purifying effect.

Example 3

The street lamp with air-purifying and water planting plant function of this embodiment, its improvement lies in: the top of the large water mist sprayer 1-10 is communicated with a small water mist sprayer 1-11, and the small water mist sprayer 1-11 is used for spraying water mist to the disc-shaped silk screen 1-3; the disk-shaped wire mesh 1-3 is fixed above the small water mist sprayer 1-11 through the disk mesh bracket 1-4.

The inner wall of the disk screen bracket 1-4 of the embodiment is connected with a separation plate 1-6, the lower end of the separation plate 1-6 is connected with a chassis 1-13, and an air exhaust gap is reserved between the separation plate 1-6 and the cylindrical curtain 1-2. The air exchange mechanism in the embodiment can be arranged on the chassis 1-13, external air can be introduced by an air pump and pumped into the inner cavity of the cylindrical curtain 1-2, the top of the cylindrical curtain 1-2 is closed due to air pressure, air flows outwards, and the cylindrical curtain 1-2 and the large water mist sprayer 1-10 are matched to remove particle pollutants in the air; air enters the gap from the side wall, flows upwards along the partition plates 1-6 and can enter the outer cavity only through the disc-shaped wire mesh 1-3, so that secondary purification can be realized by utilizing the disc-shaped wire mesh 1-3. The small mist sprinklers 1-11 may be provided in plural number, for example, 4 at equal intervals, and the small mist sprinklers 1-11 spray mist upwardly to purify the air while forming a water film on the disk-shaped screens 1-3 to ensure sufficient contact with the air. An air outlet 1-12 can be arranged on the shell 1-1, and the purified air can be discharged through the air outlet 1-12. The air outlets 1-12 are arranged along the circumference of the shell 1-1 at equal intervals, preferably 5.

In this embodiment, the large mist sprayer 1-10 is used in combination with the small mist sprayer 1-11, the large mist sprayer 1-10 sprays water downward, and the small mist sprayer 1-11 is installed on the large mist sprayer 1-10 for spraying water upward. The number of the small mist sprinklers 1-11 can be 5, so that the spraying direction can be adjusted conveniently, and the sprayed mist can cover the disc-shaped silk screen 1-3.

After the small mist sprayer 1-11 is used, a large amount of water enters the outside of the net tray 1-4, and thus, a flow pipe 1-5 is provided between the partition plate 1-6 and the outer case 1-1, and the flow pipe 1-5 can be provided on the base pan 1-13 for discharging sewage.

By adopting the structural design, the air sprayed by the air spraying pipes 1-9 is firstly sprayed by the large water mist sprayers 1-10, a water film is easily formed between the guide rod gaps, and when the air passes through the guide rod gaps, the water film is broken to ensure the air to be fully contacted with purified water, so that the primary purification of the air is realized. After entering the gap between the partition board 1-6 and the cylindrical curtain 1-2, the air flows upwards, and when reaching the lower part of the disc-shaped screen 1-3, the small water mist sprayer 1-11 sprays and purifies the air, so that secondary air purification is realized, and therefore, a two-stage purification effect can be achieved when water mist purification is utilized, and the air purification effect is guaranteed.

Example 4

With reference to fig. 3 and 4, the street lamp with air purifying and hydroponic plant functions of the embodiment is improved in that: the air exchange mechanism in the embodiment comprises an air suction device 1-7 which penetrates through a shell 1-1 and is communicated with the outside, the inner end of the air suction device 1-7 is connected with an air inlet of an air pump 1-8, an air outlet of the air pump 1-8 is connected with an air spraying pipe 1-9, and an outlet of the air spraying pipe 1-9 is positioned in an annular cavity of a cylindrical curtain 1-2; and the shell 1-1 is provided with at least two air outlets 1-12, preferably 4 air outlets which are arranged at equal intervals.

Specifically, the air suction device 1-7 can be an air inlet pipe, and the air pump 1-8 sucks outside air through the air suction device 1-7 and then discharges the air into the inner cavity through the air injection pipe 1-9. Preferably, a filter screen may be provided at the inlet of the air suction device 1-7 to primarily filter the outside air to prevent some bugs, silk wadding, etc. from entering the device.

In addition, the air injection pipes 1 to 9 in this embodiment may be double-ended nozzles, that is, two air injection ports are led out from the main pipe in the middle, and the two air injection ports are opposite to each other to inject air to both sides. The spray pipes of the air spray pipes 1-9 can be arranged into a curved structure, so that the air spray openings face the cylindrical curtains 1-2. Further, in order to improve the efficiency, a plurality of air exchange mechanisms can be arranged at equal intervals along the circumferential direction of the base plate 1-13, preferably, 4 air injection pipes can be arranged at 4 positions along the circumferential direction of the base plate 1-13, so that the air injection pipes 1-9 can work cooperatively.

It should be noted that in order to prolong the service life of the air pump 1-8 and avoid the corrosion of the sewage, a cover plate is arranged between the isolation plate 1-6 and the shell 1-1 to cover the air pump 1-8, and the flow pipe 1-5 passes through the cover plate and the chassis 1-13 to discharge the sewage. The cover plate can be obliquely arranged, one side close to the shell 1-1 is a lower end, and the inlet of the flow pipe 1-5 is positioned at the lowest position, so that drainage is facilitated.

Example 5

The street lamp with air-purifying and water planting plant function of this embodiment, its improvement lies in: in the embodiment, the lower side of the chassis 1-13 is provided with a waste water collecting cavity 1-18, and the discharge port 1-14 and the discharge port of the flow pipe 1-5 are communicated with the waste water collecting cavity 1-18, so that the sewage after purifying the air enters the waste water collecting cavity 1-18. The bottom plate of the waste water collecting cavity 1-18 is an arc-shaped plate protruding downwards, the middle position is the lowest, the bottom plate is communicated with the pillar pipe 2-1, and sewage can enter the pillar pipe 2-1 to be discharged.

Furthermore, a floor drain 1-19 is arranged at the communication position of the waste water collecting cavity 1-18 and the pillar pipe 2-1, the floor drain 1-19 is provided with a gap which is reserved and can block partial deposited pollutants, a window is arranged on the bottom plate of the waste water collecting cavity 1-18, the window is sealed by a window plate 1-15, and the accumulated substances in the waste water collecting cavity 1-18 can be cleaned by opening the window plate 1-15 regularly.

Example 6

With reference to fig. 5 and fig. 6, the street lamp with air purifying and hydroponic plant functions of the embodiment is improved by: in the embodiment, the electrostatic water culture mechanism 3 comprises a flowerpot 3-1 and a flowerpot liner 3-2 which are connected with a support pipe 2-1, the flowerpot liner 3-2 is provided with a water culture groove 3-8, and a grid opening 3-7 for injecting sewage discharged by the air purification mechanism 1 into the water culture groove 3-8 is arranged on the support pipe 2-1; and a water culture water outlet 3-5 is arranged on the support pipe 2-1 and is used for discharging water liquid overflowing from the water culture groove 3-8.

A large cavity is formed by the flowerpot 3-1 in the embodiment in a surrounding mode to protect the inner flowerpot container 3-2, plants can be planted in the inner flowerpot container 3-2, and the inner flowerpot container 3-2 is internally provided with the electrode plate 3-3 for generating static electricity and promoting plant growth. The connection part of the flowerpot liner 3-2 and the support column tube 2-1 is provided with a grid opening 3-7, the grid opening 3-7 is positioned at the upper side of the flowerpot liner 3-2, the bottom of the grid opening 3-7 is provided with a closure cover plate 3-4, and the closure cover plate 3-4 blocks the support column tube 2-1. The water liquid flowing down the pillar pipe 2-1 is blocked by the closure cover plate 3-4, and then enters the water culture groove 3-8 through the grid opening 3-7 to be used as nutrient solution for plant growth.

The water culture water outlets 3-5 arranged at the joint of the flowerpot 3-1 and the strut pipe 2-1 are positioned at the upper side of the bottom wall of the flowerpot 3-1, the water culture water outlets 3-5 are arranged at intervals, the flowerpot liner 3-2 overflows along with the continuous injection of water flow, the overflowing water liquid enters the flowerpot 3-1 and then can flow into the strut pipe 2-1 again through the water culture water outlets 3-5. 2 or 3 or 4 electrostatic hydroponic mechanisms 3 may be provided according to the height of the pillar tube 2-1 without particular limitation.

Example 7

With reference to fig. 7, the street lamp with air purifying and hydroponic plant function of this embodiment is improved by: the flowerpot inner container 3-2 mainly comprises a shell and an electrode plate 3-3 arranged on the inner wall of the shell, wherein the electrode plate 3-3 comprises a copper anode plate 3-3-1 and a zinc cathode plate 3-3-2 which are arranged at intervals. The copper anode plate 3-3-1 and the zinc cathode plate 3-3-2 are vertically inserted into the flowerpot inner container 3-2, and the copper anode plate 3-3-1 and the zinc cathode plate 3-3-2 can be connected in a connecting mode similar to the cylindrical curtain 1-2.

Due to the fact that corrosive substances exist in the sewage and become certain acidity, the copper anode plate 3-3-1 and the zinc cathode plate 3-3-2 are electrolyzed in the water to form a certain potential difference, and an electric field is formed spontaneously. The water culture grooves 3-8 are used for water culture plants, and can be plants which are good at absorbing haze and purifying air, such as chlorophytum comosum and ivy. The root of the plant can promote the growth under the action of the weak electric field of copper and zinc, and the absorption of some substances in the wastewater is accelerated. And the electricity can also be output after each pair of copper-zinc electrode plates are connected in series. Further, the LED street lamp 3-9 can be arranged outside the flowerpot 3-1, the LED street lamp 3-9 can be set as a colored lamp and used for decorating a lamp post at night, and electric energy generated by the electrode plate 3-3 can be used for supplying power to the small LED street lamp 3-9.

Example 8

With reference to fig. 8, the street lamp with air purifying and hydroponic plant function of this embodiment is improved by: the street lamp in the embodiment also comprises a water storage and supply mechanism 4, wherein the water storage and supply mechanism 4 comprises a water storage tank 4-1 and a water pump 4-3, and the water storage tank 4-1 is used for collecting sewage flowing out of the strut pipe 2-1 and water injected by a water supply pipe 4-9; the water pump 4-3 pumps water in the reservoir 4-1 and delivers the water to the air purification mechanism 1 through the water inlet pipe 2-2 in the pillar pipe 2-1.

The support column pipe 2-1 is fixed on the ground, the inner cavity of the support column pipe is communicated with a waste water collecting pipe 4-4, the water outlet of the waste water collecting pipe 4-4 is connected to the side wall of the bottom of the water storage tank 4-1, the bottom of the water storage tank 4-1 is also connected with a drain pipe 4-7, a valve 4-5 is arranged on the drain pipe 4-7, the valve 4-5 is connected with an operating rod 4-10, the upper end of the operating rod is connected with a hand wheel 4-6, and the opening and closing of the valve 4-5 can be controlled through the hand wheel 4-. When the valve 4-5 is opened, the sewage in the water reservoir 4-1 can be discharged. After the water is discharged, water can be injected into the water reservoir 4-1 through the water supply pipe 4-9. The reservoir 4-1 also needs to be periodically opened for cleaning. There are various cleaning methods, such as coating the wall with acid solution for cleaning, and then washing with high-pressure water cavity to prevent the over-derivation of living things in the tank.

Further, in the present embodiment, a filter 4-8 is disposed in the reservoir 4-1, the filter 4-8 is divided into an upper layer and a lower layer, and the meshes of the lower filter 4-8 may be larger than the meshes of the upper filter 4-8, so as to filter the dirt in the water layer by layer. The water suction port 4-2 of the water pump 4-3 is inserted into the water storage tank 4-1 and is positioned on the upper layer filter screen 4-8 to realize water supply circulation.

With reference to fig. 9, according to the above device, the present embodiment further provides a method for purifying air and hydroponically culturing plants by water circulation based on the street lamp main body, which comprises the following steps:

s1, controlling the ventilation mechanism in the air purification mechanism 1 to start first, and the air pump 1-8 sucks outside air through the air suction device 1-7 and then discharges the air into the inner cavity through the air injection pipe 1-9.

S2, starting the large water mist sprayer 1-10 and the small water mist sprayer 1-11 to spray water mist, starting water supply from the water inlet pipe 2-2, wherein when the water mist is sprayed, air sprayed by the air spraying pipe 1-9 firstly passes through the large water mist sprayer 1-10 to be sprayed, so that pollutants in the air are adsorbed by water drops and are discharged along with gathered water liquid, and primary purification of the air is realized.

After entering the gap between the partition board 1-6 and the cylindrical curtain 1-2, the air flows upwards, and when reaching the lower part of the disc-shaped screen 1-3, the small water mist sprayer 1-11 sprays and purifies the air, so that secondary air purification is realized, and therefore, a two-stage purification effect can be achieved when water mist purification is utilized, and the air purification effect is guaranteed.

S3, discharging the water mist through a drain port 1-14 and a flow pipe 1-5, entering a waste water collecting cavity 1-18, and filtering by a floor drain 1-19 to flow into a pillar pipe 2-1.

S4: the water liquid flowing down the pillar pipe 2-1 is blocked by the closure cover plate 3-4 and then enters the inner cavity of the flowerpot liner 3-2 through the grid opening 3-7 to be used as nutrient solution for plant growth. Due to the fact that corrosive substances exist in the sewage and become certain acidity, the copper anode plate 3-3-1 and the zinc cathode plate 3-3-2 in the flowerpot inner container 3-2 are electrolyzed in the water to form a certain potential difference, an electric field is formed spontaneously, absorption of plants on the substances in the waste water is promoted, plant growth is promoted, and the sewage can be purified.

S5: the water liquid in the pillar pipe 2-1 flows into a waste water collecting pipe 4-4 and finally flows into a reservoir 4-1 of a water storage and supply mechanism 4; filtering the water solution by a filter screen 4-8, depositing the particles at the bottom and discharging the particles through a valve 4-5; the water pump 4-3 pumps the upper water liquid, and supplies water to the large water mist sprayer 1-10 and the small water mist sprayer 1-11 through the water inlet pipe 2-2, so that the purified water is recycled.

When air is purified, the solar cell pieces 1-16 on the shell 1-1 absorb solar energy to generate electricity, and the generated power is stored and can be used for a street lamp or a water pump; or stored in a battery and distributed and managed by the control system. The present embodiment mainly embodies the structural part, and details of the control part are not described again.

The present invention and its embodiments have been described above schematically, without limitation, and what is shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. Therefore, if the person skilled in the art receives the teaching, without departing from the spirit of the invention, the person skilled in the art shall not inventively design the similar structural modes and embodiments to the technical solution, but shall fall within the scope of the invention.

Claims

1. A method for purifying air and hydroponically planting plants by water circulation based on a street lamp main body is characterized in that: an air purification mechanism (1) and an electrostatic water culture mechanism (3) are arranged on a support post (2) of a street lamp, a street lamp body (1-17) is installed on a chassis (1-13) of the air purification mechanism (1), a large water mist sprayer (1-10) is umbrella-shaped, the middle part of the large water mist sprayer is connected with a water inlet pipe (2-2), a cylindrical curtain (1-2) is arranged on the lower side of the edge of the large water mist sprayer (1-10), the cylindrical curtain (1-2) is latticed, and a spray opening of a ventilation mechanism is positioned in an annular cavity of the cylindrical curtain (1-2); the top of the large water mist sprayer (1-10) is communicated with a small water mist sprayer (1-11), and the small water mist sprayer (1-11) is used for spraying water mist to the disc-shaped silk screen (1-3); the disc-shaped wire mesh (1-3) is fixed above the small water mist sprayer (1-11) through a disc mesh support (1-4); the air purifying and water planting process comprises the following steps:

s1, controlling the ventilation mechanism in the air purification mechanism (1) to start first and introducing outside air;

s2, starting the large water mist sprayer (1-10) to spray water mist, starting water supply from the water inlet pipe (2-2) in the support (2), and spraying air sprayed by the air spraying pipe (1-9) in the air exchange mechanism by the large water mist sprayer (1-10) to enable pollutants in the air to be adsorbed by water drops and discharged along with the gathered water liquid;

s3, spraying water mist, and discharging the water mist through a discharge port (1-14) on a chassis (1-13), entering a wastewater collection cavity (1-18) and flowing into a strut pipe (2-1);

s4, feeding the water flowing down from the support pipe (2-1) into the inner cavity of the flowerpot inner container (3-2) in the electrostatic water culture mechanism (3) as a nutrient solution for plant growth; the electrode plate (3-3) in the flowerpot liner (3-2) spontaneously forms an electric field in water, so that the growth of plants can be promoted, the sewage can be purified, and the purified sewage is discharged into the support column tube (2-1);

s5: the water in the pillar pipe (2-1) finally flows into a reservoir (4-1) of the water storage and supply mechanism (4); after filtration, the water pump (4-3) pumps the upper water liquid, and supplies water to the large water mist sprayer (1-10) through the water inlet pipe (2-2), so that the recycling of the purified water is realized.

2. The method for purifying air and hydroponically culturing plants based on the water circulation of the street lamp main body as claimed in claim 1, wherein the method comprises the following steps: the inner wall of the disc net support (1-4) is connected with a separation plate (1-6), the lower end of the separation plate (1-6) is connected with a chassis (1-13), and an air exhaust gap is reserved between the separation plate (1-6) and the cylindrical curtain (1-2).

3. The method for purifying air and hydroponically culturing plants based on the water circulation of the street lamp main body as claimed in claim 2, wherein the method comprises the following steps: the process after step S2 further includes: after entering a gap between the partition board (1-6) and the cylindrical curtain (1-2), air sprayed by the large water mist sprayer (1-10) flows upwards to reach the lower part of the disc-shaped wire mesh (1-3), and the small water mist sprayer (1-11) sprays and purifies the air; a flow pipe (1-5) which passes through the chassis (1-13) is arranged between the isolation plate (1-6) and the shell (1-1) and is used for discharging purified water.

4. The method for purifying air and hydroponically culturing plants based on the water circulation of the street lamp main body as claimed in any one of claims 1 to 3, wherein the method comprises the following steps: the bottom of the chassis (1-13) is provided with a wastewater collection cavity (1-18), discharged sewage flows through the chassis (1-13) and enters the wastewater collection cavity (1-18), and a water outlet of the wastewater collection cavity (1-18) is communicated with an inner cavity of the pillar pipe (2-1).

5. The method for purifying air and hydroponically culturing plants based on the water circulation of the street lamp main body as claimed in claim 1, wherein the method comprises the following steps: the air exchange mechanism comprises an air suction device (1-7) which penetrates through the shell (1-1) and is communicated with the outside, the inner end of the air suction device (1-7) is connected with an air inlet of an air pump (1-8), an air outlet of the air pump (1-8) is connected with an air spraying pipe (1-9), an outlet of the air spraying pipe (1-9) is positioned below the large water mist sprayer (1-10), and an air outlet (1-12) is formed in the shell (1-1).

6. The method for purifying air and hydroponically culturing plants based on the water circulation of the street lamp main body as claimed in claim 1, wherein the method comprises the following steps: the electrostatic water culture mechanism (3) comprises a flowerpot (3-1) connected with a support pipe (2-1) and a flowerpot liner (3-2), the flowerpot liner (3-2) is provided with a water culture groove (3-8), and a grid opening (3-7) is formed in the support pipe (2-1) and used for injecting air into the water culture groove (3-8) and discharging sewage from the air purification mechanism (1); and a water culture drainage outlet (3-5) is arranged on the support pipe (2-1) and used for discharging water liquid overflowing from the water culture groove (3-8).

7. The method for purifying air and hydroponically culturing plants based on the water circulation of the street lamp main body as claimed in claim 6, wherein the method comprises the following steps: the flowerpot liner (3-2) mainly comprises a shell and an electrode plate (3-3) arranged on the inner wall of the shell, wherein the electrode plate (3-3) comprises a copper anode plate (3-3-1) and a zinc cathode plate (3-3-2) which are arranged at intervals.

8. The method for purifying air and hydroponically culturing plants based on the street lamp main body by water circulation according to any one of claims 1 to 3 and 5 to 7, wherein the method comprises the following steps: in the step S5, a filter screen (4-8) is arranged on a reservoir (4-1) to filter water liquid, particles are deposited at the bottom, and sediments are discharged through a valve (4-5) at the bottom of the reservoir (4-1); the water pump (4-3) pumps the upper water liquid and supplies water to the large water mist sprayer (1-10) and the small water mist sprayer (1-11) through the water inlet pipe (2-2), so that the recycling of purified water is realized.