Subway station entrance purification type cold air curtain device

Abstract

A subway station entrance purification type cold air curtain device disclosed by the present invention comprises a device main body arranged at a subway exit and entrance, the device main body comprises a shell, a cylindrical fan for inlet and outlet air drainage is arranged in the shell, and a particle charge area is arranged between the air inlet side of the cylindrical fan and an air inlet. A dust collection area is arranged between the air outlet side of the cylindrical fan and the air outlet, and air purification is carried out through the particle charge area and the dust collection area. Pollutants in the air are eliminated by adopting a charge attachment technology, and the device has the advantages of high efficiency, low energy consumption, no need of replacing the filter screen and the like. The device is compact in structure, saves the installation, maintenance and replacement cost, further reduces the cost, is suitable for various scales of subway station entrances, and is wide in application range and good in application prospect.

Description

Technical Field

[0001] The invention belongs to the technical field of subway station ventilation and air purification, and in particular relates to a purification-type cold air curtain device at an entrance of a subway station. Background Art

[0002] As an important part of urban public transportation, subway stations often face the problem of external air pollutants invading their entrance areas, affecting the air quality inside the station and the health of passengers. Although traditional cold air curtain devices can effectively block external airflow, they lack air purification functions and may even increase the circulation of pollutants at the entrance of subway stations.

[0003] Therefore, it is particularly important to develop a charge-attached purification cold air curtain device that can both block external pollutants and purify the air. Summary of the invention

[0004] The present invention is proposed to solve the problems existing in the prior art, and its purpose is to provide a purification type cold air curtain device for a subway station entrance.

[0005] The technical solution of the present invention is: a purification type cold air curtain device for subway station entrance, including a device body arranged at the subway entrance and exit, the device body includes a shell, a cylindrical fan for inlet and outlet air drainage is arranged inside the shell, a particle charge area is arranged between the air inlet side and the air inlet of the cylindrical fan, and a dust collection area is arranged between the air outlet side and the air outlet of the cylindrical fan, and air purification is performed through the particle charge area and the dust collection area.

[0006] Furthermore, the top plate of the shell is longer than the bottom plate, and a back plate perpendicular to the top plate and the bottom plate and an arc plate connecting the top plate and the bottom plate are arranged between the top plate and the bottom plate.

[0007] Furthermore, the air inlet is arranged in the arc plate, and the air outlet is arranged in the bottom plate.

[0008] Furthermore, the shell is provided with a second partition plate for horizontal partitioning and a first partition plate for vertical partitioning, and the first partition plate and the second partition plate divide the interior of the shell into a first inner cavity, a second inner cavity, a third inner cavity, and a fourth inner cavity.

[0009] Furthermore, the particle charge zone is arranged in the first inner cavity, and the particle charge zone purifies particulate matter and microorganisms in the air through charge attachment.

[0010] Furthermore, the cylindrical fan is arranged in the second inner cavity, and the cylindrical fan delivers the incoming air of the first inner cavity into the third inner cavity.

[0011] Furthermore, the dust collecting area is arranged in the third inner cavity, and the dust collecting area collects particles and microorganisms with electric charges.

[0012] Furthermore, the air outlet of the third inner cavity is vertically downward.

[0013] The beneficial effects of the present invention are as follows: The present invention uses charge attachment technology to eliminate pollutants in the air, and has the advantages of high efficiency, low energy consumption, and no need to replace the filter screen. The present invention has a compact structure, saves installation and maintenance replacement costs, further reduces costs, and is suitable for subway station entrances of various sizes, with a wide range of practical applications and good application prospects. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is the installation schematic diagram of the present invention; Figure 2 It is a schematic diagram of the structure of the present invention; in: 1 Device body 2 Subway entrance and exit 3 Cold air curtain isolation belt 4 Shell 5 First partition plate 6 Second partition plate 7 First inner cavity 8 Second inner cavity 9 Third inner cavity 10 Fourth inner cavity 11 Air inlet 12 Air outlet 13 Particle charging area 14 Dust collection area 15 Cylindrical fan. DETAILED DESCRIPTION

[0015] Hereinafter, the present invention will be described in detail with reference to the accompanying drawings and embodiments: like Figure 1 to Figure 2 As shown, a purification type cold air curtain device for a subway station entrance includes a device body 1 arranged at a subway entrance and exit 2, the device body 1 includes a shell 4, a cylindrical fan 15 for inlet and outlet air drainage is arranged inside the shell 4, a particle charge area 13 is arranged between the air inlet side of the cylindrical fan 15 and the air inlet 11, and a dust collection area 14 is arranged between the air outlet side of the cylindrical fan 15 and the air outlet 12, and air purification is performed through the particle charge area 13 and the dust collection area 14.

[0016] The top plate of the housing 4 is longer than the bottom plate, and a back plate perpendicular to the top plate and the bottom plate and an arc plate connecting the top plate and the bottom plate are arranged between the top plate and the bottom plate.

[0017] The air inlet 11 is arranged in the arc plate, and the air outlet 12 is arranged in the bottom plate.

[0018] The shell 4 is provided with a second partition plate 6 for horizontal partitioning and a first partition plate 5 for vertical partitioning. The first partition plate 5 and the second partition plate 6 divide the interior of the shell 4 into a first inner cavity 7, a second inner cavity 8, a third inner cavity 9, and a fourth inner cavity 10.

[0019] The particle charge region 13 is disposed in the first inner cavity 7 , and the particle charge region 13 purifies particulate matter and microorganisms in the air through charge attachment.

[0020] The cylindrical fan 15 is disposed in the second inner cavity 8 , and the cylindrical fan 15 delivers the incoming air of the first inner cavity 7 into the third inner cavity 9 .

[0021] The dust collecting area 14 is disposed in the third inner cavity 9 , and the dust collecting area 14 collects particles and microorganisms attached with electric charges.

[0022] The air outlet 12 of the third inner cavity 9 is vertically downward.

[0023] Specifically, Figure 1 As shown, the device body 1 is arranged on the top of the subway entrance and exit 2, and a cold air curtain isolation zone 3 is formed below the device body 1. The device body 1 sucks in polluted particles and discharges purified air after purification.

[0024] Specifically, Figure 2 As shown, the first inner cavity 7 is formed by a portion of the top plate of the shell 4, a portion of the arc plate of the shell 4, a portion of the second partition plate 6, and the first partition plate 5. The first partition plate 5 has air holes, and the second partition plate 6 and the middle portion of the bottom plate of the shell 4 have air holes.

[0025] Specifically, the second inner cavity 8 is formed by a portion of the top plate of the shell 4 , a portion of the back plate of the shell 4 , a portion of the second partition plate 6 , and the first partition plate 5 . The second inner cavity 8 is a larger cavity that can accommodate the cylindrical fan 15 .

[0026] Specifically, the third inner cavity 9 is formed by a portion of the back plate of the shell 4, a portion of the second partition plate 6, a portion of the bottom plate of the shell 4, and a small partition. The portion of the second partition plate 6 and the portion of the bottom plate of the shell 4 are aligned with holes to allow air to escape.

[0027] Specifically, the fourth inner cavity 10 is formed by a portion of the arc plate of the shell 4, a portion of the second partition plate 6, a portion of the bottom plate of the shell 4, and a small partition. The fourth inner cavity 10 is a closed cavity and does not participate in the inlet and outlet of air.

[0028] Specifically, the charge attachment device for purifying air in the present invention includes a high-voltage electrical box, an electrode assembly, and a collection device.

[0029] More specifically, the high voltage electric box is used to generate an electric field.

[0030] More specifically, an electrode assembly is disposed in the particle charge region 13, and the electrode assembly is used to attach the electric field charges to the particles and microorganisms in the air.

[0031] More specifically, a collecting device is provided in the dust collecting area 14 for collecting charged particles and microorganisms.

[0032] Specifically, the electrode assembly includes: a positive electrode, which is made of a plurality of oxidation-resistant metal strips arranged in parallel; a negative electrode, which is made of an aluminum plate or a stainless steel plate and is provided with a nano-scale TiO2 coating to improve the purification efficiency; and a micro-discharge prevention conductive rail, which is used to fix the positive electrode and prevent the occurrence of micro-discharge.

[0033] Specifically, the collecting device is a charged plate.

[0034] The working principle of the present invention is as follows: In the working state, the cold air curtain device starts to work, forming a cold air curtain isolation zone 3. At the same time, the charge generator generates positive and negative ions or electron beams and releases them into the air. The tiny particles in the air are charged under the action of the electric field force and adsorbed onto the collection plate. The control system monitors environmental parameters in real time, such as temperature, humidity, PM2.5 concentration, etc., and adjusts the working intensity and direction of the device according to the monitoring results.

[0035] Polluted particles enter the cold air curtain and enter the particle charging area 13 for high-voltage ionization. A portion of large pollutants are screened out by the cylindrical fan 15. Small charged pollutants are mixed with air and enter the dust collection area 14 and are captured by the charged plate, thereby further air purification is carried out to ensure the effective cleaning of pollutants at the entrance of the subway station.

[0036] As an implementation application, the specifications and quantity of air purification modules and cold air curtain modules are customized according to the actual size and needs of the subway station entrance. For example, for a large subway station entrance, multiple sets of air purification modules and cold air curtain modules can be used in parallel to improve air purification efficiency and cold air coverage.

[0037] As another implementation application, the device body is connected to an air quality monitoring system to monitor the air quality at the entrance of the subway station in real time and send the monitoring data to the controller. When the air quality monitoring system detects that the air quality is lower than the preset standard, it sends an alarm signal to the controller, and the controller controls the alarm device to issue an alarm prompt.

[0038] The present invention uses charge attachment technology to eliminate pollutants in the air, and has the advantages of high efficiency, low energy consumption, and no need to replace the filter screen. The present invention has a compact structure, saves installation and maintenance replacement costs, further reduces costs, and is suitable for subway station entrances of various sizes, with a wide range of practical applications and good application prospects.

Claims

1. A purification type cold air curtain device for a subway station entrance, comprising a device body (1) arranged at a subway entrance (2), characterized in that: The device body (1) comprises a shell (4), wherein a cylindrical fan (15) for conducting inlet and outlet air drainage is arranged inside the shell (4), a particle charge zone (13) is arranged between the air inlet side of the cylindrical fan (15) and the air inlet (11), and a dust collection zone (14) is arranged between the air outlet side of the cylindrical fan (15) and the air outlet (12), and air purification is performed through the particle charge zone (13) and the dust collection zone (14).

2. A subway station entrance purification type cold air curtain device according to claim 1, characterized in that: The top plate of the shell (4) is longer than the bottom plate, and a back plate perpendicular to the top plate and the bottom plate and an arc-shaped plate connecting the top plate and the bottom plate are provided between the top plate and the bottom plate.

3. A subway station entrance purification type cold air curtain device according to claim 2, characterized in that: The air inlet (11) is arranged in the arc-shaped plate, and the air outlet (12) is arranged in the bottom plate.

4. A subway station entrance purification type cold air curtain device according to claim 2, characterized in that: The shell (4) is provided with a second partition plate (6) for horizontal partitioning and a first partition plate (5) for vertical partitioning, and the first partition plate (5) and the second partition plate (6) divide the interior of the shell (4) into a first inner cavity (7), a second inner cavity (8), a third inner cavity (9), and a fourth inner cavity (10).

5. A subway station entrance purification type cold air curtain device according to claim 4, characterized in that: The particle charge region (13) is arranged in the first inner cavity (7), and the particle charge region (13) purifies particulate matter and microorganisms in the air through charge attachment.

6. A subway station entrance purification type cold air curtain device according to claim 4, characterized in that: The cylindrical fan (15) is arranged in the second inner cavity (8), and the cylindrical fan (15) delivers the incoming air of the first inner cavity (7) into the third inner cavity (9).

7. The subway station entrance purification type cold air curtain device according to claim 4, characterized in that: The dust collection area (14) is arranged in the third inner cavity (9), and the dust collection area (14) collects particles and microorganisms attached with electric charges.

8. The subway station entrance purification type cold air curtain device according to claim 7, characterized in that: The air outlet (12) of the third inner cavity (9) is vertically downward.

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