CN111111905B - Subway air monitoring and purifying system - Google Patents
Subway air monitoring and purifying system Download PDFInfo
- Publication number
- CN111111905B CN111111905B CN201911412842.7A CN201911412842A CN111111905B CN 111111905 B CN111111905 B CN 111111905B CN 201911412842 A CN201911412842 A CN 201911412842A CN 111111905 B CN111111905 B CN 111111905B
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- iron
- subway
- iron removing
- air
- subway tunnel
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C1/00—Magnetic separation
- B03C1/02—Magnetic separation acting directly on the substance being separated
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B13/00—Accessories or details of general applicability for machines or apparatus for cleaning
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B7/00—Cleaning by methods not provided for in a single other subclass or a single group in this subclass
- B08B7/02—Cleaning by methods not provided for in a single other subclass or a single group in this subclass by distortion, beating, or vibration of the surface to be cleaned
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- Current-Collector Devices For Electrically Propelled Vehicles (AREA)
Abstract
A subway air monitoring and purifying system comprises a clearing room, wherein the clearing room is positioned behind a subway station, the clearing room is symmetrically arranged on the walls of two sides of a subway tunnel adjacent to the subway station, the height of the clearing room is equal to the height of the subway tunnel, and the clearing room is directly communicated with the top wall inside the subway tunnel; an air inlet channel is arranged in front of the cleaning chamber, an air outlet channel is arranged behind the cleaning chamber, the air inlet channel and the air outlet channel are communicated with the subway tunnel, and the air inlet channel is gradually far away from the subway tunnel from front to back and is wider and wider; four cross rods are fixed in the clearing room, the axes of the cross rods are vertical to the direction of the subway tunnel, and two ends of the cross rods are fixed on the wall of the clearing room. Compared with the prior art, the invention has the technical effects that the iron particle removing device is arranged, the iron particles generated by friction between the wheels and the track can be removed, the iron particles can be prevented from entering the subway station or the carriage, and the health of people is maintained.
Description
Technical Field
The invention relates to a subway air monitoring and purifying system.
Background
The record of ' iron particles in subway air ' harming human health ' in the No. 1 stage of 2007 in modern urban rail transit: the air in the subway contains iron particles which can damage DNA of human body most and has higher toxicity than automobile exhaust. The iron particles mainly destroy the cell structure of human organs, thereby increasing the probability of cancer of passengers, and the iron particles are mainly generated by the friction between wheels and rails.
Disclosure of Invention
The technical problems to be solved by the invention are as follows: referring to fig. 1, a rail 11 is laid in a subway tunnel 10, a train 12 is arranged on the rail 11, and a shielding door 21 is arranged between the subway tunnel 10 and a subway station 20. More iron particles are generated by the friction between the wheels and the rails in the subway tunnel 10, but when the train 12 enters the station, the shielding door 21 is opened, and the iron particles enter the subway station 20 or the train carriage, so that the health of people is threatened.
The technical scheme of the invention is as follows:
a subway air monitoring and purifying system comprises a clearing room, wherein the clearing room is positioned behind a subway station, the clearing room is symmetrically arranged on the walls of two sides of a subway tunnel adjacent to the subway station, the height of the clearing room is equal to the height of the subway tunnel, and the clearing room is directly communicated with the top wall inside the subway tunnel; an air inlet channel is arranged in front of the cleaning chamber, an air outlet channel is arranged behind the cleaning chamber, the air inlet channel and the air outlet channel are communicated with the subway tunnel, and the air inlet channel is gradually far away from the subway tunnel from front to back and is wider and wider; the cleaning chamber is fixed with four cross rods, the axes of the cross rods are vertical to the direction of the subway tunnel, two ends of the cross rods are fixed on the wall of the cleaning chamber, a plurality of iron removing mechanisms which are parallel to each other are arranged in the cleaning chamber, each iron removing mechanism comprises a rectangular frame, through holes are formed in the corners of the frames, a corresponding cross rod penetrates through each through hole, the fixing of the cross rods and the iron removing mechanisms is completed in sequence, and an electromagnetic iron removing plate or an iron removing net is fixed in each frame; the cross bars and the frames are made of insulating materials and are acrylic bars or acrylic plates, grooves are formed in the acrylic frame frames, iron removing plates or iron removing nets are additionally arranged in the grooves and are connected with current regulators through wires, and the current regulators are connected with a power supply; the bottom of the cleaning chamber, which is also right below the iron removing mechanism, is fixedly provided with a belt conveying mechanism, the belt conveying mechanism extends towards one side of the subway station and reaches the position right below the subway station, a driving shaft of the belt conveying mechanism is positioned at one side of the subway station, a dust collecting box is arranged below the driving shaft, and the dust collecting box is used for containing iron particles; a belt conveying mechanism above the dust collection box is provided with a striking head, the striking head is connected with an output shaft of a striking motor, and the striking motor is connected with a PLC (programmable logic controller);
a cover plate is arranged on the floor of the subway station, and the space below the cover plate is communicated with the area where the dust collection box is located.
A vibration sensor and an air particle sensor are fixed on the outer surface of the wall of the cleaning chamber exposed out of the subway tunnel, and the vibration sensor is arranged on a locomotive track near the cleaning chamber; the air particle sensor is used for detecting the particle content near the locomotive track, and if the particle content exceeds a threshold value, the PLC controls the current regulator to increase the current intensity, so that the electromagnetic force of the iron removing net is enhanced.
The vibration sensor and the air particle sensor are respectively connected with the input end of the PLC, and the output end of the PLC is respectively connected with a current regulator and a power supply of the iron removing plate or the iron removing net, a power mechanism communicated with the driving shaft and a striking motor.
The implementation method comprises the following steps: the iron particle adsorption period and the iron particle conveying period are alternately carried out, and the alternation specifically comprises the following steps:
when adsorbing iron particles, the iron removing mechanism is kept connected with a power supply, the cross air enters the air inlet channel from the subway tunnel, the iron particles carried by the cross air are adsorbed on the iron removing plates or the iron removing net, and the purified air returns to the subway tunnel from the air outlet channel;
when iron particles are conveyed, after a T1 period, when a train passes through the vibration sensor, the vibration sensor sends a signal to the PLC, the PLC controls the iron removing mechanism to cut off a power supply, at the moment, the train passes through the vibration sensor, the iron removing plate or the iron removing net can vibrate, the iron particles adsorbed by the iron removing plate or the iron removing net lose electromagnetic force, and the iron particles fall onto the belt conveying mechanism by matching the vibration of the iron removing plate or the iron removing net and the gravity of the iron particles, at the moment, the power mechanism of the PLC controls the driving shaft to be powered on in the T2 period, so that the iron particles on the belt conveying mechanism fall into the dust collection box, and when the T2 period expires, the PLC controls the power mechanism of the driving shaft to cut off the power supply;
when the following two conditions are simultaneously met, switching to an iron particle adsorption period;
the first condition is as follows: the vibration sensor senses that the train leaves;
and a second condition: the power mechanism of the driving shaft is powered off.
Compared with the prior art, the invention has the technical effects that the iron particle removing device is arranged, the iron particles generated by friction between the wheels and the track can be removed, the iron particles can be prevented from entering the subway station or the carriage, and the health of people is maintained.
Drawings
Fig. 1 is a schematic diagram of the prior art.
Fig. 2 is a schematic view of the installation position of the present invention.
Fig. 3 is an enlarged top view of the present invention.
Fig. 4 is a schematic front view of the iron removing mechanism.
Detailed Description
In this specification, the direction of travel of the locomotive is front, and the opposite direction is rear.
Referring to fig. 2, the subway air monitoring and purifying system includes a cleaning room 30, the cleaning room 30 is located at the rear of the subway station 20, and the cleaning room 30 is symmetrically arranged on the walls of the subway tunnel 10 at both sides adjacent to the subway station 20. It should be noted that the height of the clean room 30 is equal to the height of the subway tunnel 10, and is directly connected to the inner top wall of the subway tunnel 10. Therefore, the original air duct is arranged at the top of the locomotive, the air purifying device is arranged in the air duct, and purified air enters the interior of the locomotive. Tunnel cross-over wind around the locomotive enters the cleaning chambers 30 at both sides, and the cross-over wind carries iron particles into the cleaning chambers at both sides as the locomotive travels, since the iron particles are mainly generated by the friction action between the locomotive and the rail.
As shown in fig. 3, taking a single side as an example, an air inlet channel 31 is disposed in front of the cleaning chamber 30, an air outlet channel 32 is disposed behind the cleaning chamber, the air inlet channel 31 and the air outlet channel 32 are both communicated with the subway tunnel 10, and the air inlet channel 31 is gradually far away from the subway tunnel 10 from the front to the back and is wider.
As shown in fig. 3-4, the removing chamber 30 fixes four cross bars 41, the axes of the cross bars 41 are perpendicular to the direction of the subway tunnel 10, both ends of the cross bars 41 are fixed on the chamber wall of the removing chamber 30, a plurality of iron removing mechanisms 40 parallel to each other are arranged in the removing chamber 30, each iron removing mechanism 40 comprises a rectangular frame 42, through holes 43 are arranged at the corners of the frame 42, a corresponding cross bar 41 is arranged in each through hole 43 in a penetrating manner, the fixing of the cross bars 41 and the iron removing mechanisms 40 is completed in sequence, and an electromagnetic iron removing plate or an iron removing net 44 is fixed in the frame 42. It should be noted that the cross bar 41 and the frame 42 are made of insulating materials, which may be acrylic bars or acrylic plates, and grooves are formed in the frame of the acrylic frame 42, iron removing plates or iron removing nets 44 are additionally disposed in the grooves, the iron removing plates or iron removing nets 44 are connected to a current regulator through wires, and the current regulator is connected to a power supply. Wherein the current regulator is an existing device.
Referring to fig. 4, the bottom of the cleaning chamber 30, which is also directly below the iron removing mechanism 40, is fixed with a belt transmission mechanism 60, the belt transmission mechanism 60 extends to one side of the subway station 20 and reaches to the position directly below the subway station 20, a driving shaft 61 of the belt transmission mechanism 60 is located at one side of the subway station 20, and a dust collection box 62 is arranged below the driving shaft, and the dust collection box 62 is used for collecting iron particles. And a striking head is arranged on the belt conveying mechanism 60 above the dust collection box and connected with an output shaft of a striking motor, and the striking motor is connected with a PLC (programmable logic controller). Since the iron particles are very tiny and are not easy to fall into the dust collection box 62 automatically, the action frequency is 2 seconds and 1 time by controlling the action of the impact motor at regular time by the PLC controller.
As shown in fig. 3, a cover plate 52 is arranged on the floor of the subway station 20, the space below the cover plate 52 is communicated with the area where the dust collection box 62 is located, and the cover plate 52 facilitates manual cleaning of the dust collection box 62.
For convenience of operation, the vibration sensor 51 and the air particle sensor 53 are fixed on the outer surface of the cleaning chamber 30 exposed on the wall of the subway tunnel 10, and it should be noted that the vibration sensor 51 may be disposed on the locomotive track near the cleaning chamber 30; the air particle sensor 53 is used for detecting the particle content near the locomotive track, if the particle content exceeds the threshold value, the PLC controls the current regulator to increase the current intensity, so that the electromagnetic force of the iron removing net 44 is enhanced, and the adsorption capacity of the iron particles is increased.
The vibration sensor 51 and the air particle sensor 53 are respectively connected with the input end of the PLC, and the output end of the PLC is respectively connected with a current regulator and a power supply of the iron removing plate or the iron removing net 44, a power mechanism communicated with the driving shaft 61 and a striking motor.
The working principle is as follows:
when the novel air-purifying device is used, as shown in figures 2-4, as the train runs, the cross wind can be formed in the subway tunnel 10, when the train stops at the subway station 20 and in one end time before the train stops, the wind speed of the cross wind can be reduced, even in this way, the wind speed of the cross wind cannot be zero, the wind speed is enough for the cross wind to enter the air inlet channel 31 from the subway tunnel 10, at the moment, the PLC controls the iron removing mechanism 40 to be communicated with the power supply, iron particles carried by the cross wind can be adsorbed on the iron removing plate or the iron removing net 44, and the purified wind returns to the subway tunnel 10 from the air outlet channel 32. In real time, the air particle sensor 53 detects the particle content near the locomotive track, and if the particle content exceeds a threshold value, the PLC controls the current regulator to increase the current intensity, so that the electromagnetic force of the iron removing mesh 44 is enhanced, thereby increasing the adsorption capacity of iron particles. If the particle content detected by the air particle sensor 53 is within the threshold range, which indicates that the particles generated by the friction between the wheels of the locomotive and the track are not greatly increased, the current intensity is maintained.
The unique structure and position of the air inlet channel 31 can not only keep the cross air entering the air inlet channel 31, but also slow down the air speed of the cleaning chamber 30, which is helpful for the iron particles to be adsorbed or fall on the belt conveying mechanism 60.
The vibration sensor 51 is arranged to sense when a train passes by.
Therefore, the implementation method of the invention is as follows:
the period of adsorbing iron particles and the period of conveying the iron particles are alternately carried out, and the alternation is as follows:
when adsorbing iron particles, the iron removing mechanism 40 is kept connected with a power supply, the cross air enters the air inlet channel 31 from the subway tunnel 10, the iron particles carried by the cross air are adsorbed on the iron removing plates or the iron removing net 44, and the purified air returns to the subway tunnel 10 from the air outlet channel 32.
When the train passes through the vibration sensor 51, the vibration sensor 51 sends a signal to the PLC, the PLC controls the iron removing mechanism 40 to turn off the power supply, at this time, the train passes through the vibration sensor, the iron removing plate or the iron removing net vibrates, the iron particles (including other particles) adsorbed by the iron removing plate or the iron removing net lose electromagnetic force, and the iron particles fall onto the belt conveying mechanism 60 by matching with the vibration of the iron removing plate or the iron removing net and the gravity of the iron particles, at this time, the PLC controls the power mechanism of the driving shaft 61 to be powered on in a T2 period, so that the iron particles on the belt conveying mechanism 60 fall into the dust collection box 62 (which can be replaced irregularly) and the power mechanism of the driving shaft 61 is controlled to be powered off by the PLC when the T2 period expires.
When the following two conditions are satisfied simultaneously, the period is switched to the period of adsorbing the iron particles.
The first condition is as follows: the vibration sensor 51 senses the train leaving;
and a second condition: the power mechanism of the primary shaft 61 is powered off.
See the prior art for additional details.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various changes and modifications can be made without departing from the overall concept of the present invention, and these should also be considered as the protection scope of the present invention.
Claims (4)
1. The utility model provides a subway air monitoring clean system which characterized in that: the cleaning room (30) is positioned behind the subway station (20), the cleaning room (30) is symmetrically arranged on the walls of the two sides of the subway tunnel (10) adjacent to the subway station (20), the height of the cleaning room (30) is equal to that of the subway tunnel (10), and the cleaning room is directly communicated with the top wall inside the subway tunnel (10);
an air inlet channel (31) is arranged in front of the cleaning chamber (30), an air outlet channel (32) is arranged behind the cleaning chamber, the air inlet channel (31) and the air outlet channel (32) are communicated with the subway tunnel (10), and the air inlet channel (31) is gradually far away from the subway tunnel (10) from front to back and is wider and wider;
four transverse rods (41) are fixed in a clearing room (30), the axes of the transverse rods (41) are perpendicular to the direction of a subway tunnel (10), two ends of each transverse rod are fixed on the wall of the clearing room (30), a plurality of iron removing mechanisms (40) which are parallel to each other are arranged in the clearing room (30), each iron removing mechanism (40) comprises a rectangular frame (42), through holes (43) are formed in the corners of the frames (42), a corresponding transverse rod (41) penetrates through each through hole (43), the transverse rods (41) and the iron removing mechanisms (40) are fixed in sequence, and an electromagnetic iron removing plate or an iron removing net (44) is fixed in each frame (42); the cross bar (41) and the frame (42) are made of insulating materials and are acrylic bars or acrylic plates, grooves are formed in the acrylic frame, iron removing plates or iron removing nets (44) are additionally arranged in the grooves, the iron removing plates or the iron removing nets (44) are connected with a current regulator through a lead, and the current regulator is connected with a power supply;
the bottom of the cleaning chamber (30), which is also right below the iron removing mechanism (40), is fixed with a belt conveying mechanism (60), the belt conveying mechanism (60) extends towards one side of the subway station (20) and reaches the right below the subway station (20), a driving shaft (61) of the belt conveying mechanism (60) is positioned at one side of the subway station (20), a dust collecting box (62) is arranged below the driving shaft, and the dust collecting box (62) is used for containing iron particles; a belt conveying mechanism (60) above the dust collection box is provided with a striking head, the striking head is connected with an output shaft of a striking motor, and the striking motor is connected with a PLC (programmable logic controller);
a cover plate (52) is arranged on the floor of the subway station (20), and the space below the cover plate (52) is communicated with the area where the dust collection box (62) is located.
2. The subway air monitoring and purifying system as claimed in claim 1, wherein: a vibration sensor (51) and an air particle sensor (53) are fixed on the outer surface of the wall of the cleaning chamber (30) exposed out of the subway tunnel (10), and the vibration sensor (51) is arranged on a locomotive track near the cleaning chamber (30); the air particle sensor (53) is used for detecting the particle content near the locomotive track, if the particle content exceeds a threshold value, the PLC controls the current regulator to increase the current intensity, so that the electromagnetic force of the iron removing net (44) is enhanced.
3. The subway air monitoring and purifying system as claimed in claim 2, wherein: the vibration sensor (51) and the air particle sensor (53) are respectively connected with the input end of the PLC, and the output end of the PLC is respectively connected with a current regulator and a power supply of the iron removing plate or the iron removing net (44), a power mechanism communicated with the driving shaft (61) and a striking motor.
4. An implementation method of a subway air monitoring and purifying system is characterized in that: the subway air monitoring and purifying system as claimed in claim 3, wherein the implementation method is as follows: the iron particle adsorption period and the iron particle conveying period are alternately carried out, and the alternation specifically comprises the following steps:
when adsorbing iron particles, the iron removing mechanism (40) is kept connected with a power supply, the cross air enters the air inlet channel (31) from the subway tunnel (10), the iron particles carried by the cross air are adsorbed on the iron removing plate or the iron removing net (44), and the purified air returns to the subway tunnel (10) from the air outlet channel (32);
when iron particles are conveyed, after a T1 period, when a train passes through the vibration sensor (51), the vibration sensor (51) sends a signal to the PLC, the PLC controls the iron removing mechanism (40) to be powered off, at the moment, the train passes through the vibration sensor, the iron removing plate or the iron removing net can be vibrated, the iron particles adsorbed by the iron removing plate or the iron removing net lose electromagnetic force, and the iron particles fall onto the belt conveying mechanism (60) by matching with the vibration of the iron removing plate or the iron removing net and the gravity of the iron particles, at the moment, the PLC controls the power mechanism of the driving shaft (61) to be powered on in the T2 period, so that the iron particles on the belt conveying mechanism (60) fall into the dust collecting box (62), and when the T2 period expires, the PLC controls the power mechanism of the driving shaft (61) to be powered off;
when the following two conditions are simultaneously met, switching to an iron particle adsorption period;
the first condition is as follows: the vibration sensor (51) senses the train leaving;
and a second condition: the power mechanism of the driving shaft (61) is powered off.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911412842.7A CN111111905B (en) | 2019-12-31 | 2019-12-31 | Subway air monitoring and purifying system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911412842.7A CN111111905B (en) | 2019-12-31 | 2019-12-31 | Subway air monitoring and purifying system |
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| Publication Number | Publication Date |
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| CN111111905A CN111111905A (en) | 2020-05-08 |
| CN111111905B true CN111111905B (en) | 2022-03-25 |
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| CN201911412842.7A Active CN111111905B (en) | 2019-12-31 | 2019-12-31 | Subway air monitoring and purifying system |
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| ES245442A1 (en) * | 1958-11-19 | 1959-05-01 | Garcia German Santos Fulgencio | A kiln for firing ceramic materials |
| CN101463731B (en) * | 2008-12-31 | 2011-02-09 | 上海市隧道工程轨道交通设计研究院 | High-speed thermal circulation air curtain construction method for tunnel portal |
| CN101525003A (en) * | 2009-02-25 | 2009-09-09 | 黄灿荣 | Automatic alarm device for train crossing |
| KR20100117696A (en) * | 2009-04-27 | 2010-11-04 | 정용진 | Moving and treating equipment on structure surface |
| CN202348495U (en) * | 2011-11-10 | 2012-07-25 | 上海宝钢汽车检测修复有限公司 | Magnetic air cleaner of vacuum sweeper |
| DE102012021382A1 (en) * | 2012-10-31 | 2014-04-30 | Lubricant Consult Gmbh | Vehicle, in particular rail vehicle, with a friction brake and method for its operation |
| CN206197875U (en) * | 2016-08-25 | 2017-05-31 | 中建材宁国新马耐磨材料有限公司 | A kind of Multi-functional dust catcher of foundry |
| CN207250057U (en) * | 2017-08-15 | 2018-04-17 | 北京璀璨星空文化发展有限公司 | A kind of hanging Multifunction advertisement lamp-box |
| CN107469592B (en) * | 2017-09-29 | 2023-07-04 | 秦皇岛首创思泰意达环保科技有限公司 | Subway tunnel air environment purification system and operation method thereof |
| CN207324318U (en) * | 2017-09-29 | 2018-05-08 | 上海企鹏模具钢有限公司 | A kind of iron ash absorption processor |
| CN108173511A (en) * | 2018-02-27 | 2018-06-15 | 方显峰 | A kind of long-persistence luminous device of wind energy |
| CN108310870A (en) * | 2018-03-10 | 2018-07-24 | 佛山市千注利科技有限公司 | A kind of workshop air purifier of environmental protection |
| CN207970967U (en) * | 2018-03-21 | 2018-10-16 | 江西尚朋电子科技有限公司 | A kind of iron shaving adsorption apparatus of built-in soft magnetic materials |
| CN109453598A (en) * | 2018-12-17 | 2019-03-12 | 上海市政工程设计研究总院（集团）有限公司 | A kind of bypass type purification system suitable for city two-way traffic tunnel |
| CN110125092A (en) * | 2019-06-20 | 2019-08-16 | 洪玉燕 | A kind of full-automatic suspension ferromagnetic metal device for recovering powder |
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