Solar-driven spiral air guide charged spraying aerosol purification device

Abstract

The invention provides a solar-driven spiral air guide charged spraying aerosol purification device, and belongs to the technical field of air pollution control and wet-type air purification. The problems that in an existing air purification device, the contact efficiency of air and spraying liquid drops is insufficient, and liquid carried by sprayed gas is difficult to effectively remove are solved. The device comprises a shell, a fan, a solar cell panel, an inner cavity, an air guide groove, charged sprayers, a deposition cavity and a filter structure, the inner cavity is installed in the shell, the fan is installed at the top of the inner cavity, the side wall of the inner cavity is provided with the spiral air guide groove used for guiding air to flow downwards, the side wall of the inner cavity is provided with the multiple charged sprayers, and the charged sprayers are arranged in the deposition cavity. A nozzle of the charge nozzle faces the upper portion of the inner cavity, the deposition cavity is formed in the bottom of the inner cavity, and the filtering structure is arranged below the deposition cavity and communicates with the deposition cavity. The device is mainly used for spraying and purifying aerosol in air and recycling water resources under the condition that an external power supply is not needed.

Description

Technical Field

[0001] This invention belongs to the field of air pollution control and wet air purification technology, and in particular relates to a solar-driven spiral wind-guided electrostatic spray aerosol purification device. Background Technology

[0002] Particulate matter and aerosol pollutants suspended in the air have adverse effects on environmental quality and human health. In order to remove particulate matter from the air, various air purification devices and methods have been proposed in the existing technology, including filter-type air purification, electrostatic dust removal, wet spray purification, and the combined application of multiple methods.

[0003] An existing invention patent with publication number CN105833649A discloses an air purification device powered by solar energy. This device uses a solar panel to power a fan and a spray system, allowing air to be sprayed and filtered inside the casing before being discharged, thus achieving air purification. This technical solution reduces the device's dependence on external power to some extent. However, the air inside the device mainly flows axially, resulting in a short airflow path and limited contact time between the air and the spray droplets. Furthermore, it lacks a dedicated structural design for the gas-liquid separation process, meaning that droplets entrained in the air after spraying may be discharged with the airflow, affecting the quality of the discharged air.

[0004] For example, utility model patent CN204629825U discloses a solar-powered air purifier. This device treats air by combining a spray device with a filtration structure and is powered by solar energy. While the device has a relatively compact structure, its purification process relies mainly on a combination of spraying and simple filtration. The internal airflow organization is relatively simple, lacking effective control over airflow trajectory and residence time. The contact efficiency between the spray droplets and fine aerosol particles in the air needs improvement.

[0005] Furthermore, US20170095765A1 discloses a spray-type gas purification device that uses a liquid jet structure within the gas flow channel to bring particulate matter in the gas into contact with and capture the liquid. While this technology can achieve wet removal of pollutants, the device is primarily used for industrial gas treatment, has a relatively complex structure, and focuses mainly on the spraying process itself, failing to effectively address the issue of liquid carryover in the gas after spraying, and also neglecting the application of low-energy power supply methods in outdoor or distributed scenarios.

[0006] Some existing air purification devices use multi-layer filter materials or mechanical baffle structures to treat air, but these devices usually focus on the interception or inertial separation of solid particles and lack the ability of wet spraying to capture fine aerosols; at the same time, the filter materials are prone to clogging in high dust or high humidity environments, resulting in high maintenance costs.

[0007] In existing technologies, many spray devices employ non-charged spray technology. However, these technologies are less effective at removing aerosol particles in the submicron size range. Ordinary spray droplets primarily remove aerosols through physical collision and adsorption, but they have limitations in capturing tiny particles, especially aerosol particles in the 0.1μm to 1μm range. While some existing technologies, such as the aforementioned patents CN105833649A, CN204629825U, and US20170095765A1, have made improvements in spray purification and airflow control, they do not involve charged spray technology, resulting in a need to further improve aerosol removal efficiency. Summary of the Invention

[0008] In view of this, the present invention aims to propose a solar-driven spiral wind-guided charged spray aerosol purification device to solve the problems of insufficient contact efficiency between air and spray droplets and difficulty in effectively removing liquid carried by gas after spraying in existing air purification devices.

[0009] To achieve the above objectives, the present invention adopts the following technical solution: a solar-driven spiral-guided charged spray aerosol purification device, comprising a shell, a fan, a solar panel, an inner cavity, a guide channel, charged nozzles, a deposition chamber, and a filter structure. The inner cavity is installed inside the shell, the fan is installed at the top of the inner cavity, the side wall of the inner cavity is provided with a spiral-shaped guide channel for guiding air downwards, multiple charged nozzles are provided on the side wall of the inner cavity, the nozzles of the charged nozzles are arranged facing upwards in the inner cavity, the deposition chamber is located at the bottom of the inner cavity, the filter structure is located below the deposition chamber and communicates with the deposition chamber, the top of the shell is provided with a solar panel, and the charged nozzles and the fan are both powered by the solar panel.

[0010] Furthermore, the filtration structure includes a first filter layer, a second filter layer, a third filter layer, a fourth filter layer, and a fifth filter layer arranged sequentially from top to bottom.

[0011] Furthermore, a water storage tank is provided below the fifth filter layer.

[0012] Furthermore, the water storage tank is connected to one end of the water pump, and the other end of the water pump is connected to a storage tank that supplies liquid to the charged nozzle. The water pump is powered by a solar panel.

[0013] Furthermore, an air outlet channel is formed between the shell and the inner cavity, an air outlet hole is provided at the bottom of the inner cavity, and a baffle is provided inside the air outlet channel.

[0014] Furthermore, the baffle is provided in multiple manner, and the multiple baffles are evenly distributed along the airflow direction.

[0015] Furthermore, the charged nozzle is provided with a charged structure for making the spray droplets in a charged state during or after spraying.

[0016] Furthermore, the charged structure includes two vertical copper wires, which are powered by a solar panel.

[0017] Furthermore, the total number of turns of the air guide groove is 4, and the pitch of each turn is 220mm.

[0018] Furthermore, multiple charged nozzles are evenly distributed along the spiral path of the air guide channel.

[0019] Compared with the prior art, the beneficial effects of the present invention are: 1. This invention provides a spiral air guide groove inside the inner cavity to guide air downward along a spiral path, effectively extending the residence time of air in the device and improving the contact efficiency between air and spray droplets.

[0020] 2. The present invention adopts a reverse spraying method, which makes the sprayed charged droplets move relative to the air, which is beneficial to the capture of fine aerosol particles.

[0021] 3. This invention achieves effective demisting of the sprayed gas by setting baffles in the air outlet channel, reducing the amount of droplets discharged with the gas.

[0022] 4. This invention uses a multi-layer filtration structure and a water pump to treat and recycle the sprayed liquid, thereby reducing water consumption and operating costs.

[0023] 5. This invention uses solar energy to provide operating power for the device, reducing dependence on external power sources and making it suitable for outdoor or distributed applications. Attached Figure Description

[0024] The accompanying drawings, which form part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings: Figure 1 This is a schematic diagram of the structure of a solar-driven spiral wind-guided charged spray aerosol purification device according to the present invention. Figure 2 This is a schematic diagram of the interior of the cavity described in this invention; Figure 3 This is a schematic diagram of the structure of the charged nozzle described in this invention.

[0025] In the picture: 1-Shell, 2-Fan, 3-Solar panel, 4-Inner cavity, 5-Air guide duct, 6-Charged nozzle, 7-Deposition chamber, 8.1-First filter layer, 8.2-Second filter layer, 8.3-Third filter layer, 8.4-Fourth filter layer, 8.5-Fifth filter layer, 9-Water pump, 10-Air outlet duct, 11-Baffle plate, 12-Water storage tank, 13-Vertical copper wire. Detailed Implementation

[0026] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of the present invention can be combined with each other, and the described embodiments are only some embodiments of the present invention, not all embodiments.

[0027] Detailed Implementation Method 1: See Figure 1-3 This embodiment provides a solar-driven spiral-guided charged spray aerosol purification device, including a housing 1. The housing 1 is a vertically arranged cylindrical structure. An air inlet is provided at the top of the housing 1, and a fan 2 is installed at the air inlet to blow outside air into the housing. The fan 2 is powered by a solar panel 3 located at the top of the housing. The solar panel 3 can be used in conjunction with an energy storage unit to provide stable power to the fan 2 and other electrical components in the device. An inner cavity 4 extending vertically is provided inside the housing 1. Several air guide grooves 5 are provided on the inner wall of the inner cavity 4, which are spirally distributed along the axial direction. The air guide grooves 5 extend from the inner wall towards the center of the inner cavity 4 to guide the air entering the inner cavity 4 to flow downward along the spiral path, thereby prolonging the flow path and residence time of the air inside the device.

[0028] In this embodiment, the inner wall of the inner cavity 4 is provided with a plurality of air guide grooves 5 arranged spirally along the axial direction. The air guide grooves 5 are integral structures, starting from the inner wall and gradually extending towards the center of the inner cavity 4 in a circumferential direction to form a continuous spiral shape. The width and depth of the air guide grooves 5 gradually increase, thereby realizing that the air flows downward along the spiral path in the inner cavity 4. The air guide grooves 5 effectively extend the air flow path and increase the residence time to improve the contact efficiency between the air and the spray droplets. The total number of turns of the air guide grooves is 4, the pitch of each turn is 220mm, and a flow gap is reserved between adjacent air guide grooves to allow air to pass through, so as to avoid the airflow channel being completely blocked.

[0029] In this embodiment, a sedimentation chamber 7 is provided at the bottom of the inner cavity 4. The sedimentation chamber 7 can be integrally formed by the shell 1 or it can be composed of an independent container. Its specific structure and materials can be selected according to actual needs. During the spraying process, the liquid after capturing pollutants gathers into the sedimentation chamber 7 under the action of gravity, and larger particulate impurities settle in the sedimentation chamber 7.

[0030] In this embodiment, a filter structure is provided below the deposition chamber 7 for filtering the sprayed liquid.

[0031] The filtration structure includes a first filter layer 8.1, a second filter layer 8.2, a third filter layer 8.3, a fourth filter layer 8.4, and a fifth filter layer 8.5 arranged sequentially from top to bottom. The first filter layer 8.1 and the second filter layer 8.2 form a coarse particle filter layer, the third filter layer 8.3 and the fourth filter layer 8.4 form a filler filter layer, and the fifth filter layer 8.5 is a fine filter layer. The coarse particle filter layer is used to intercept larger particulate impurities in the liquid. Its filler materials include, but are not limited to, sieves, filter screens, coarse sand, porous materials, or filter cotton. The filler filter layer uses filler media, including but not limited to pebbles, quartz sand, and activated carbon. The fine filter layer uses filter media, including but not limited to non-woven fabric and microporous filter media. The filtered liquid is collected in a water storage tank 12 and then pumped back to the spray head 6 by a water pump 9 located at the bottom of the shell, realizing the recycling of the spray liquid.

[0032] In this embodiment, an annular air outlet channel 10 is formed between the outer side of the inner cavity 4 and the outer wall of the shell 1. A gas channel connecting the inner cavity 4 and the air outlet channel 10 is provided at the lower part of the inner cavity 4. The air purified by spraying enters the air outlet channel 10 from the inner cavity 4 and flows upward along the air outlet channel 10.

[0033] In this embodiment, multiple baffles 11 are evenly distributed along the airflow direction within the air outlet channel 10. Gaps are provided between adjacent baffles to allow gas to pass through. As the air passes through the baffles 11, its direction changes multiple times. The entrained droplets collide with the baffles 11 under inertial action. Due to the inertial reaction force and the surface effect of the baffles 11, the droplets gradually fall back to the bottom for filtration. In order to more effectively guide the liquid back to the bottom filtration structure, in this embodiment, the flow at the root of the baffles 11 converges and the liquid is directly guided to the filtration structure through a guide pipe. The guide pipe is directly inserted into the bottom of the inner cavity 4 and extends to the filtration structure to ensure that the liquid can flow smoothly into the filter layer, thereby achieving more efficient gas-liquid separation. The purified air is finally discharged from the top or side air outlet of the housing 1, realizing the air purification process.

[0034] A plurality of charged nozzles 6 are distributed along the air guide groove 5 on the inner wall of the inner cavity 4. The charged nozzles 6 are fixedly installed on the inner wall of the inner cavity 4, and their spraying direction is opposite to the air flow direction, so that the spray droplets and the air flowing down the spiral path form relative motion. In this embodiment, the charged nozzles 6 are evenly distributed along the spiral path direction of the air guide groove 5. The position of each charged nozzle 6 is set according to the design of the air guide groove 5, and the distribution interval is 90° to ensure that the charged nozzles 6 can cover the entire spiral path. Each charged nozzle 6 is opposite to the airflow direction, and the sprayed droplets form relative motion with the airflow, thereby enhancing the collision effect between the droplets and aerosol particles in the air. As a result, the charged nozzle 6 is provided with a charged structure for making the spray droplets in a charged state during or after spraying. The charged structure makes the spray droplets in a charged state during or after spraying to enhance the spray droplets' ability to capture aerosol particles. The charged spray enhances the interaction force between droplets and aerosol particles through electrostatic attraction, which significantly improves the particle capture efficiency. Especially in the particle size range of 0.1μm to 1μm, the electrostatic force of the charged droplets greatly increases the collision frequency between droplets and tiny particles, thereby improving the removal efficiency of submicron aerosol particles without increasing the droplet size.

[0035] The charged nozzle 6 comprises two vertical copper wires 13, powered by a solar panel 3 mounted on the top of the housing. These wires generate a stable electric arc through an electrode structure. This arc ensures that the sprayed droplets remain continuously charged at the nozzle, thereby enhancing the attraction between the droplets and aerosol particles. Through the stabilizing electric arc, the charged structure of the charged nozzle 6 ensures that the droplets maintain a stable charge during spraying, resulting in a more stable and efficient spray collection effect. The charged droplets enhance their attraction to aerosol particles in the air through electrostatic forces, further improving particle collection efficiency.

[0036] The specific embodiments of the present invention disclosed above are merely illustrative of the invention. These embodiments do not exhaustively describe all details, nor do they limit the invention to the specific embodiments described. Many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention.

Claims

1. A solar-powered spiral-guided, electrically charged spray aerosol purification device, characterized in that: The device includes a housing (1), a fan (2), a solar panel (3), an inner cavity (4), an air guide groove (5), a charged nozzle (6), a deposition chamber (7), and a filter structure. The inner cavity (4) is installed inside the housing (1), the fan (2) is installed on the top of the housing (1), the inner cavity (4) has a spiral air guide groove (5) on its side wall for guiding air downwards, the inner cavity (4) has multiple charged nozzles (6) on its side wall, the nozzles of the charged nozzles (6) are arranged facing upwards towards the inner cavity (4), the deposition chamber (7) is located at the bottom of the inner cavity (4), the filter structure is located below the deposition chamber (7) and communicates with the deposition chamber (7), the top of the housing (1) has a solar panel (3), and the charged nozzles (6) and the fan (2) are both powered by the solar panel (3).

2. The solar-driven spiral wind-guided charged spray aerosol purification device according to claim 1, characterized in that: The filter structure includes a first filter layer (8.1), a second filter layer (8.2), a third filter layer (8.3), a fourth filter layer (8.4), and a fifth filter layer (8.5) arranged from top to bottom.

3. The solar-driven spiral wind-guided charged spray aerosol purification device according to claim 2, characterized in that: A water storage tank (12) is provided below the fifth filter layer (8.5).

4. The solar-driven spiral wind-guided charged spray aerosol purification device according to claim 3, characterized in that: The water storage tank (12) is connected to one end of the water pump (9), and the other end of the water pump (9) is connected to the liquid storage tank that supplies liquid to the charged nozzle (6). The water pump (9) is powered by the solar panel (3).

5. The solar-driven spiral wind-guided charged spray aerosol purification device according to claim 1, characterized in that: An air outlet channel (10) is formed between the shell (1) and the inner cavity (4). An air outlet hole is provided at the bottom of the inner cavity (4). A baffle plate (11) is provided inside the air outlet channel (10).

6. The solar-driven spiral wind-guided charged spray aerosol purification device according to claim 5, characterized in that: The baffle (11) is provided in multiple ways, and the multiple baffles (11) are evenly distributed along the airflow direction.

7. The solar-driven spiral wind-guided charged spray aerosol purification device according to claim 1, characterized in that: The charged nozzle (6) is provided with a charged structure for making the spray droplets charged during or after spraying.

8. The solar-driven spiral wind-guided charged spray aerosol purification device according to claim 7, characterized in that: The charged structure includes two vertical copper wires (13), which are powered by the solar panel (3).

9. The solar-driven spiral wind-guided charged spray aerosol purification device according to claim 1, characterized in that: The air guide groove (5) has a total of 4 turns, and the pitch of each turn is 220mm.

10. A solar-driven spiral wind-guided charged spray aerosol purification device according to claim 9, characterized in that: Multiple charged nozzles (6) are evenly distributed along the spiral path of the air guide groove (5).

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