Air purifier for subway carriage

Abstract

The air purifier comprises an outer shell, an air inlet is formed in the outer shell, an air inlet channel is formed in the side face of the air inlet, a driver is arranged on the back of the outer shell, and a driving shaft is arranged at the power output end of the driver; the driving shaft extends into the air inlet, an impeller is installed on the surface of the driving shaft, a movable shaft is arranged in the air inlet channel, a movable rod is arranged on the surface of the movable shaft, and the movable rod is rotationally connected with the air inlet channel through the movable shaft. Metal circular tubes are arranged in a honeycomb shape and are mutually connected to a metal plate negative electrode; the needle-shaped electrode is located on the axis of the metal round tube, under the action of a high-voltage power source, the needle tip and the round tube form a stable corona area, when microorganisms such as bacteria, fungi and viruses or dust in air pass through the corona area, the microorganisms are ionized and carbonized, dust particles are effectively adsorbed after being electrified, and the purposes of sterilization and dust removal are achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of air purifiers, and more specifically to an air purifier used in a subway car. Background Art

[0002] Subway is a high-speed, high-capacity, electric-powered rail transit system built in cities. Trains run on fully enclosed lines. Lines in the central city are basically built in underground tunnels, while lines outside the central city are generally built on viaducts or on the ground. In English, it is called metro (underground railway, subway). [1] Subway is a high-density, high-capacity urban rail transit system (Metro) that covers all underground and above-ground exclusive right-of-way in urban areas. The subway in Taiwan, China, calls it "rapid transit".

[0003] There are many different technologies and media in air purifiers, which enable them to provide clean and safe air to users. Commonly used air purification technologies include: adsorption technology, negative (positive) ion technology, catalytic technology, photocatalyst technology, superstructure light mineralization technology, HEPA high-efficiency filtration technology, electrostatic dust collection technology, etc.; material technologies mainly include: photocatalyst, activated carbon, synthetic fiber, HEPA high-efficiency material, negative ion generator, etc. Existing air purifiers are mostly composite, that is, they use multiple purification technologies and material media at the same time.

[0004] At present, the existing subway air purifiers need to be continuously cleaned, and their purification effect will decrease over time, so they need to be cleaned in time and cannot operate for a long time. Therefore, it is necessary to provide a new technical solution to solve this problem. Summary of the invention

[0005] The purpose of the present invention is to provide an air purifier for use in subway cars, which solves the problem that the existing subway air purifiers need to be continuously cleaned, and their purification effect will decrease over time, so they need to be cleaned in time and cannot operate for a long time.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an air purifier for use in a subway car, comprising: an outer shell, an air inlet is arranged inside the outer shell and an air inlet channel is arranged on the side of the air inlet, a driver is arranged on the back of the outer shell and a drive shaft is arranged on the power output end of the driver, the drive shaft extends to the inside of the air inlet and an impeller is installed on its surface, a movable shaft is arranged inside the air inlet channel and a movable rod is arranged on the surface of the movable shaft, the movable rod is rotatably connected to the air inlet channel through the movable shaft, an elastic band is arranged between the movable rods, a purification device is arranged in the air inlet channel, metal meshes are arranged at the inlet and outlet of the purification device and an electrostatic adsorber is arranged inside, the electrostatic adsorber consists of a positive electrode plate and a negative electrode plate, the positive electrode plates are arranged vertically and a plurality of groups of metal circular tubes are arranged on the surface of the negative electrode, needle-shaped electrodes are arranged inside the plurality of groups of the metal circular tubes, exhaust holes are arranged on the side of the air inlet channel and the exhaust holes are arranged in a strip structure and are distributed at equal intervals.

[0007] As a preferred embodiment of the present invention, a primary filter screen, a non-woven fabric and a carbon fiber layer are sequentially arranged inside the purification device from left to right.

[0008] As a preferred embodiment of the present invention, fixing blocks are arranged on both sides of the outer shell and through holes for installation are arranged inside the fixing blocks.

[0009] As a preferred embodiment of the present invention, telescopic grooves are provided inside both sides of the outer shell and fixed blocks are provided inside the telescopic grooves. The fixed blocks are telescopically connected to the telescopic grooves, and the head ends of the fixed blocks are arranged in a trapezoidal structure.

[0010] As a preferred embodiment of the present invention, a spring column is arranged inside the telescopic slot and a limiting plate is arranged on the side of the fixed block, and the limiting plate is fixedly connected to the spring column.

[0011] As a preferred embodiment of the present invention, a dustproof net is provided on the surface of the air inlet and the dustproof net is fixedly connected to the air inlet.

[0012] As a preferred embodiment of the present invention, an inspection door is provided on the side of the outer shell and the inspection door is connected to the air inlet passage, and the inspection door is connected to the purification device.

[0013] As a preferred embodiment of the present invention, several groups of the metal round tubes are arranged in a honeycomb shape.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] The present invention is provided with an air inlet inside the outer shell and an air inlet channel on the side of the air inlet, a driver is provided on the back of the outer shell and a driving shaft is provided on the power output end of the driver, the driving shaft extends to the inside of the air inlet and an impeller is installed on the surface of the driving shaft, the driving shaft is driven to rotate by the driver, the impeller is driven to rotate, so that the air in the subway car is sucked in and flows into the purification device through the air inlet channel for purification, a movable shaft is provided inside the air inlet channel and a movable rod is provided on the surface of the movable shaft, the movable rod is rotatably connected to the air inlet channel through the movable shaft, an elastic band is provided between the movable rods, this arrangement can freely control the opening size of the air inlet channel to ensure the output pressure, a purification device is provided in the air inlet channel, metal meshes are provided at the inlet and outlet of the purification device, and a primary filter mesh, a non-woven fabric, a carbon fiber layer and an electrostatic adsorbent are respectively provided inside the electrostatic adsorbent. The appendage is composed of a positive electrode plate and a negative electrode plate. The positive electrode plates are arranged vertically and a plurality of groups of metal circular tubes are arranged on the surface of the negative electrode. The plurality of metal circular tubes are arranged in a honeycomb structure. At the same time, a needle-shaped electrode is arranged inside. The metal circular tubes are arranged in a honeycomb structure and are mutually connected to the negative electrode of the metal plate. The needle-shaped electrode is located on the axis line of the metal circular tube. Under the action of a high-voltage power supply, the needle tip and the circular tube form a stable corona zone. When the air contains microorganisms such as bacteria, fungi, viruses, or dust passing through the corona zone, the microorganisms are ionized and carbonized, and the dust particles are effectively adsorbed after being charged, thereby achieving the purpose of sterilization and dust removal. Exhaust holes are arranged on the side of the air inlet channel, and the exhaust holes are arranged in a strip structure and are evenly spaced. The electrostatic adsorber provided in the air purifier effectively reduces harmful substances such as microorganisms in the purified air, reduces the purification pressure of subsequent purification devices, and thus extends the service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0017] Figure 2 This is a schematic diagram of the overall structure of the present invention from another angle;

[0018] Figure 3 It is a schematic diagram of the internal structure of the present invention;

[0019] Figure 4 It is a side view and a schematic diagram of the enlarged structure of part A of the present invention;

[0020] Figure 5 It is a schematic diagram of the bottom structure of the present invention;

[0021] Figure 6 It is a schematic diagram of a partially enlarged structure inside the electrostatic adsorber of the present invention.

[0022] In the figure: 1. outer shell; 2. fixing block; 3. air inlet; 4. dust screen; 5. driver; 6. fixing block; 7. inspection door; 8. air inlet channel; 9. movable shaft; 10. movable rod; 11. elastic belt; 12. purification device; 13. metal mesh; 14. primary filter; 15. non-woven fabric; 16. carbon fiber layer; 17. electrostatic adsorber; 18. exhaust hole; 19. telescopic slot; 20. limit plate; 21. spring column; 22. impeller; 23. negative electrode plate; 24. metal round tube; 25. positive electrode plate; 26. needle electrode. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] See also Figure 1-6The present invention provides a technical solution: an air purifier for a subway car, comprising: an outer shell 1, an air inlet 3 is arranged inside the outer shell 1, and an air inlet channel 8 is arranged on the side of the air inlet 3, a driver 5 is arranged on the back of the outer shell 1, and a driving shaft is arranged on the power output end of the driver 5, the driving shaft extends to the inside of the air inlet 3 and an impeller 22 is installed on its surface, the driving shaft is driven to rotate by the driver 5, and the impeller 22 is driven to rotate, so that the air in the subway car is sucked in and flows into the purification device 12 through the air inlet channel 8 for purification, a movable shaft 9 is arranged inside the air inlet channel 8, and a movable rod 10 is arranged on the surface of the movable shaft 9, the movable rod 10 is rotatably connected with the air inlet channel 8 through the movable shaft 9, and an elastic band 11 is arranged between the movable rods 10, such a setting can freely control the opening size of the air inlet channel 8 to ensure the output pressure, a purification device 12 is arranged in the air inlet channel 8, and a metal mesh 13 is arranged at the inlet and outlet of the purification device 12, and an electrostatic adsorbent 17 is arranged inside, The electrostatic adsorber 17 is composed of a positive electrode plate 25 and a negative electrode plate 23. The positive electrode plates 25 are arranged vertically and a plurality of metal round tubes 24 are arranged on the surface of the negative electrode. Needle electrodes 26 are arranged inside the plurality of metal round tubes 24. The metal round tubes 24 are arranged in a honeycomb shape and are connected to the negative electrode of the metal plate. The needle electrodes 26 are located on the axis of the metal round tubes 24. Under the action of a high-voltage power supply, the needle tip and the round tube form a stable corona zone. When the air contains microorganisms such as bacteria, fungi, viruses, or dust, etc. When passing through the corona zone, the microorganisms are ionized and carbonized, and the dust particles are effectively adsorbed after being charged, thereby achieving the purpose of sterilization and dust removal. Exhaust holes 18 are arranged on the side of the air inlet channel 8, and the exhaust holes 18 are arranged in a strip structure and are evenly spaced. The electrostatic adsorber 17 arranged in the air purifier effectively reduces harmful substances such as microorganisms in the purified air, reduces the purification pressure of the subsequent purification device 12, and thus prolongs the service life. Exhaust holes 18 are arranged on the side of the air inlet channel 8, and the exhaust holes 18 are arranged in a strip structure and are evenly spaced.

[0025] Further improvements, such as Figure 3 As shown: the interior of the purification device 12 is provided with a primary filter 14, a non-woven fabric 15 and a carbon fiber layer 16 from left to right. The non-woven fabric 15 is a highly efficient electret electrostatic ultra-fine polypropylene fiber non-woven fabric 15. The non-woven fabric 15 has a high filtration efficiency for particles larger than 0.3 μm, which can reach 99.999%. At the same time, the non-woven fabric 15 is treated with a bactericide to kill bacteria and viruses on the blocked floating dust particles. The carbon fiber layer 16 is made of activated carbon. When toxic and harmful gases pass through the activated carbon material, they are retained in the micropores, and the air is purified.

[0026] Further improvements, such as Figure 2As shown: fixing blocks 2 are arranged on both sides of the outer shell 1 and through holes for installation are arranged inside the fixing blocks 2. This arrangement facilitates the installation and disassembly of the outer shell 1.

[0027] Further improvements, such as Figure 4 As shown: telescopic grooves 19 are provided inside both sides of the outer shell 1, and fixed blocks 6 are provided inside the telescopic grooves 19. The fixed blocks 6 are telescopically connected to the telescopic grooves 19. The head end of the fixed blocks 6 is arranged in a trapezoidal structure. When this arrangement is installed, it uses the oblique sides of the trapezoidal structure to slide, so that the fixed blocks 6 are retracted into the telescopic grooves 19, and then extend again after the outer shell 1 is inserted into the mounting hole to support the outer shell 1.

[0028] Further improvements, such as Figure 4 As shown: a spring column 21 is arranged inside the telescopic groove 19 and a limit plate 20 is arranged on the side of the fixed block 6. The limit plate 20 is fixedly connected to the spring column 21. This arrangement ensures the stability of the telescopic movement of the fixed block 6.

[0029] Further improvements, such as Figure 2 As shown: a dustproof net 4 is arranged on the surface of the air inlet 3 and the dustproof net 4 is fixedly connected to the air inlet 3. The arrangement of the dustproof net 4 reduces the entry of air impurities.

[0030] Further improvements, such as Figure 1 As shown: an inspection door 7 is provided on the side of the outer shell 1 and the inspection door 7 is connected to the air inlet channel 8, and the inspection door 7 is connected to the purification device 12. The inspection door 7 is convenient to open for inspection and replacement of accessories.

[0031] Further improvements, such as Figure 2 As shown: several groups of the metal round tubes 24 are arranged in a honeycomb structure, and the contact area of ​​the honeycomb structure is large, and the filtering effect is better.

[0032] Working principle: an air inlet 3 is arranged inside the outer shell 1 and an air inlet channel 8 is arranged on the side of the air inlet 3, a driver 5 is arranged on the back of the outer shell 1 and a driving shaft is arranged at the power output end of the driver 5, the driving shaft extends to the inside of the air inlet 3 and an impeller 22 is installed on its surface, the driving shaft is driven to rotate by the driver 5, and the impeller 22 is driven to rotate, so that the air in the subway car is sucked in and flows into the purification device 12 through the air inlet channel 8 for purification, a movable shaft 9 is arranged inside the air inlet channel 8 and a movable rod 10 is arranged on the surface of the movable shaft 9, the movable rod 10 is rotatably connected to the air inlet channel 8 through the movable shaft 9, and an elastic band 11 is arranged between the movable rods 10, this arrangement can freely control the opening size of the air inlet channel 8 to ensure the output pressure, a purification device 12 is arranged in the air inlet channel 8, a metal mesh 13 is arranged at the inlet and outlet of the purification device 12, and a primary filter screen 14, a non-woven fabric 15, a carbon fiber layer 16 and an electrostatic filter are arranged inside respectively. The adsorber 17, the electrostatic adsorber 17 is composed of a positive electrode plate 25 and a negative electrode plate 23, the positive electrode plate 25 is arranged vertically and a plurality of groups of metal circular tubes 24 are arranged on the surface of the negative electrode, the plurality of groups of metal circular tubes 24 are arranged in a honeycomb structure, and a needle electrode 26 is arranged inside, the metal circular tubes 24 are arranged in a honeycomb structure, and are mutually connected to the negative electrode of the metal plate; the needle electrode 26 is located on the axis of the metal circular tube 24, and under the action of a high-voltage power supply, the needle tip and the circular tube form a stable corona zone, when the air contains microorganisms such as bacteria, fungi, viruses or dust passing through the corona zone, the microorganisms are ionized and carbonized, and the dust particles are effectively adsorbed after being charged, so as to achieve the purpose of sterilization and dust removal, and an exhaust hole 18 is arranged on the side of the air inlet channel 8, and the exhaust hole 18 is arranged in a strip structure and is evenly spaced, and the electrostatic adsorber 17 arranged in the air purifier effectively reduces harmful substances such as microorganisms in the purified air, reduces the purification pressure of the subsequent purification device 12, and thus prolongs the service life.

[0033] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the attached claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention. Any figure mark in the claims should not be regarded as limiting the claims involved.

[0034] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, and can be mechanical or electrical connections, or internal connectivity between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative position relationships. When the absolute position of the object being described changes, the relative position relationship may change.

[0035] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An air purifier for a subway car, characterized in that: include: An outer shell (1), wherein an air inlet (3) is arranged inside the outer shell (1) and an air inlet channel (8) is arranged on the side of the air inlet (3), a driver (5) is arranged on the back of the outer shell (1) and a drive shaft is arranged at the power output end of the driver (5), the drive shaft extends into the air inlet (3) and an impeller (22) is mounted on the surface of the drive shaft, a movable shaft (9) is arranged inside the air inlet channel (8) and a movable rod (10) is arranged on the surface of the movable shaft (9), the movable rod (10) is rotatably connected to the air inlet channel (8) through the movable shaft (9), and an elastic belt (22) is arranged between the movable rods (10) 11), a purification device (12) is arranged in the air intake passage (8), a metal mesh (13) is arranged at the inlet and outlet of the purification device (12), and an electrostatic adsorber (17) is arranged inside the purification device (12), the electrostatic adsorber (17) is composed of a positive electrode plate (25) and a negative electrode plate (23), the positive electrode plate (25) is arranged in a vertical shape and a plurality of groups of metal circular tubes (24) are arranged on the surface of the negative electrode, and needle-shaped electrodes (26) are arranged inside the plurality of groups of metal circular tubes (24), and exhaust holes (18) are arranged on the side of the air intake passage (8), and the exhaust holes (18) are arranged in a strip structure and are distributed at equal intervals.

2. The air purifier for a subway car according to claim 1, characterized in that: The interior of the purification device (12) is provided with a primary filter screen (14), a non-woven fabric (15) and a carbon fiber layer (16) in sequence from left to right.

3. The air purifier for a subway car according to claim 1, characterized in that: Fixing blocks (2) are arranged on both sides of the outer shell (1), and through holes for installation are arranged inside the fixing blocks (2).

4. The air purifier for a subway car according to claim 1, characterized in that: Telescopic grooves (19) are arranged inside both sides of the outer shell (1), and fixed clamping blocks (6) are arranged inside the telescopic grooves (19). The fixed clamping blocks (6) are telescopically connected to the telescopic grooves (19), and the head ends of the fixed clamping blocks (6) are arranged in a trapezoidal structure.

5. The air purifier for subway carriage according to claim 4, characterized in that: A spring column (21) is arranged inside the telescopic slot (19) and a limiting plate (20) is arranged on the side of the fixed clamping block (6), and the limiting plate (20) is fixedly connected to the spring column (21).

6. The air purifier for a subway car according to claim 1, characterized in that: A dustproof net (4) is provided on the surface of the air inlet (3), and the dustproof net (4) is fixedly connected to the air inlet (3).

7. The air purifier for a subway car according to claim 1, characterized in that: An inspection door (7) is provided on the side of the outer shell (1), and the inspection door (7) is connected to the air inlet passage (8), and the inspection door (7) is connected to the purification device (12).

8. The air purifier for a subway car according to claim 1, characterized in that: A plurality of groups of the metal round tubes (24) are arranged in a honeycomb shape.

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