CN112696220B - Explosion-proof safe type air circulation system suitable for traffic tunnel - Google Patents
Explosion-proof safe type air circulation system suitable for traffic tunnel Download PDFInfo
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- CN112696220B CN112696220B CN202011562670.4A CN202011562670A CN112696220B CN 112696220 B CN112696220 B CN 112696220B CN 202011562670 A CN202011562670 A CN 202011562670A CN 112696220 B CN112696220 B CN 112696220B
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F1/00—Ventilation of mines or tunnels; Distribution of ventilating currents
- E21F1/003—Ventilation of traffic tunnels
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D50/00—Combinations of methods or devices for separating particles from gases or vapours
- B01D50/60—Combinations of devices covered by groups B01D46/00 and B01D47/00
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F1/00—Ventilation of mines or tunnels; Distribution of ventilating currents
- E21F1/04—Air ducts
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F1/00—Ventilation of mines or tunnels; Distribution of ventilating currents
- E21F1/08—Ventilation arrangements in connection with air ducts, e.g. arrangements for mounting ventilators
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F17/00—Methods or devices for use in mines or tunnels, not covered elsewhere
- E21F17/18—Special adaptations of signalling or alarm devices
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F5/00—Means or methods for preventing, binding, depositing, or removing dust; Preventing explosions or fires
- E21F5/02—Means or methods for preventing, binding, depositing, or removing dust; Preventing explosions or fires by wetting or spraying
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Ventilation (AREA)
Abstract
The invention provides an explosion-proof safe air circulation system suitable for a traffic tunnel, which comprises a W-shaped humidification channel, wherein both ends of the humidification channel are connected with an air inlet assembly, the bottom of the center of the humidification channel is connected with an air supply channel, an exhaust fan is arranged in the air supply channel, the top of the humidification channel is connected with a plurality of atomizing nozzles, and one end of the atomizing nozzle far away from the humidification channel is connected with a water supply pipe; the air inlet subassembly is including being the air inlet channel of C font, and humidification passageway is connected on air inlet channel's top, and air inlet fan and filter are equipped with in proper order to air inlet channel's bottom, and the one end that air inlet channel was kept away from to the filter is equipped with a plurality of aviation baffles, and the aviation baffle is from last to keeping away from the filter slope down. The invention can effectively filter harmful substances while accelerating the air flow speed in the tunnel, and the air deflector can separate high-density particles from air; the filtered and purified air is wetted, so that the safety problems of fire, explosion and the like caused by sparks can be avoided.
Description
Technical Field
The invention relates to the field of air purification, and particularly discloses an explosion-proof safety type air circulation system suitable for a traffic tunnel.
Background
The traffic tunnel is an engineering building which is arranged underground for people and vehicles to travel, and the internal clearance section of the traffic tunnel is more than two square meters. The pollutants in the tunnel are complex and mainly comprise vehicle tail gas, dust particles and the like, and the harmful substances threaten the health of human bodies.
Because a common tunnel only comprises an outlet and an inlet, the ventilation effect in the tunnel is limited, and for tunnels with long extension distances, the ventilation effect is more deficient, a large amount of automobile exhaust gas, dust particles and the like are accumulated in the tunnel, so that the traffic safety is seriously threatened due to adverse effects on human bodies such as dizziness and nausea, and fire and even explosion are induced due to accumulation of substances such as sulfur oxides and dust. In the prior art, the air circulation system in the tunnel only has the function of accelerating circulation of air in the tunnel, has insufficient purification and prevention functions for harmful substances, and has low safety performance.
Disclosure of Invention
Based on the above, it is necessary to provide an explosion-proof safety air circulation system suitable for traffic tunnels, which not only can effectively filter harmful substances, but also can effectively avoid spark generation when purified air is discharged into the tunnels.
The invention discloses an explosion-proof safe air circulation system suitable for a traffic tunnel, which comprises a W-shaped humidification channel, wherein both ends of the humidification channel are connected with an air inlet assembly, the bottom of the center of the humidification channel is connected with an air supply channel, an exhaust fan is arranged in the air supply channel, the top of the humidification channel is connected with a plurality of atomizing nozzles, and one end of the atomizing nozzle far away from the humidification channel is connected with a water supply pipe;
the air inlet subassembly is including being the air inlet channel of C font, and humidification passageway is connected on air inlet channel's top, and air inlet fan and filter are equipped with in proper order to air inlet channel's bottom, and the one end that air inlet channel was kept away from to the filter is equipped with a plurality of aviation baffles, and the aviation baffle is from last to keeping away from the filter slope down.
Further, the filter comprises a primary filter screen and a secondary filter screen.
Further, the primary filter screen is located one side of the secondary filter screen far away from the air inlet fan, and the aperture of the primary filter screen is larger than the aperture of the secondary filter screen.
Further, a waste collection tank is arranged below the air deflector.
Further, an accelerating fan is connected between the air inlet channel and the humidifying channel.
Further, a flow rate sensor is arranged in the air inlet channel, and a signal output end of the flow rate sensor is connected with an alarm.
Further, the bottom of humidification passageway is connected with the drain pipe.
Further, a humidity sensor is arranged in the air supply channel, and a signal output end of the humidity sensor is connected with a switch of the atomizing spray head through a delay circuit.
Further, the top of the center of the humidifying channel is connected with an external air channel, and a supplemental fan is arranged in the external air channel.
The beneficial effects of the invention are as follows: the invention discloses an explosion-proof safe air circulation system suitable for a traffic tunnel, which can effectively filter harmful substances while accelerating the air flow speed in the tunnel, can effectively ensure the low concentration of the harmful substances in the air in the tunnel and ensure the health of personnel in the tunnel; the downward inclined air deflector can enable air to enter the filter in a V-shaped track, so that high-density particles can be effectively separated from the air by sedimentation, the burden of the filter can be effectively reduced, and the service life of the filter can be prolonged; the filtered and purified air is wetted after passing through the humidifying channel and is sent out to the tunnel again, so that the generation of sparks can be effectively avoided, the safety problems of fire disaster, explosion and the like caused by sparks are avoided, the sedimentation effect of particles such as dust can be effectively improved, and the dust flying is avoided.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a schematic structural diagram of an air intake assembly according to the present invention.
The reference numerals are: humidification duct 10, air intake assembly 20, air intake duct 21, air intake fan 22, filter 23, primary filter screen 231, secondary filter screen 232, air deflector 24, waste collection tank 25, accelerator fan 26, flow rate sensor 27, drain pipe 28, air supply duct 30, exhaust fan 31, humidity sensor 32, atomizer 40, water supply pipe 41, outside air duct 50, and supplemental fan 51.
Detailed Description
The invention will be further described in detail with reference to the drawings and the detailed description below, in order to further understand the features and technical means of the invention and the specific objects and functions achieved.
Reference is made to fig. 1 and 2.
The embodiment of the invention discloses an explosion-proof safe air circulation system suitable for a traffic tunnel, which comprises a W-shaped humidification channel 10, wherein the humidification channel 10 is of a pipeline structure with two ends and an upward bulge in the center, the two ends of the humidification channel 10 are both connected with an air inlet assembly 20, the center bottom of the humidification channel 10 is connected with an air supply channel 30, an exhaust fan 31 is arranged in the air supply channel 30, the tops of two arms of the humidification channel 10 are connected with a plurality of uniformly distributed atomizing spray heads 40, namely, a pipe body of the humidification channel 10 which is downwards bent is connected with the atomizing spray heads 40, the two arms of the humidification channel 10 are downwards bent to avoid the influence of water diversion to the air inlet assembly 20 or the air supply channel 30, one end of the atomizing spray heads 40 away from the humidification channel 10 is connected with a water supply pipe 41, and the water supply pipe 41 can be connected with a water pump and a water tank;
the air inlet assembly 20 comprises a C-shaped air inlet channel 21, namely, the air inlet channel 21 is bent to form a tube body structure with a main body which is longitudinal and two ends bent to be transverse, the top end of the air inlet channel 21 is connected with the humidifying channel 10, the bottom end of the air inlet channel 21 is sequentially provided with an air inlet fan 22 and a filter 23, namely, the filter 23 is positioned at one side of the air inlet fan 22 far away from the air inlet channel 21, the air inlet fan 22 and the filter 23 are arranged at an air inlet of the air inlet channel 21, the air inlet is arranged at the bottom end of the air supply opening, the air can be prevented from being immediately pumped back to a circulating system for circulation after the purification and humidification of air are just completed, the utilization rate of the purified and humidification of the air can be effectively improved, one end of the filter 23 far away from the air inlet channel 21 is provided with a plurality of uniformly distributed air deflectors 24, the air deflectors 24 incline from top to bottom far away from the filter 23, namely, the top ends of the air deflectors 24 are connected with the filter 23, the bottom of aviation baffle 24 is kept away from filter 23 slope, aviation baffle 24 can be directed by the tunnel internal air that is taken out to inlet channel 21, the air is taken out and is got into filter 23 by the quilt after being directed to sinking, the flow of air not only forms the hysteresis, and the air forms the motion track of V font in aviation baffle 24 department, the air that finally gets into filter 23 is from the direction entering of supreme down, can effectively make the particulate matter of high density realize further subsidence downwards, ensure that air and particulate matter realize screening separation in this embodiment, thereby greatly reduced the particulate matter quantity that follows air and get into filter 23, can effectively alleviate filter 23's work burden, extension filter 23's life, the air intake setting of cooperation inlet channel 21 is in the lower part in tunnel, can further improve the efficiency that the granule subsided.
When the air circulation system of the invention performs purification and circulation operation, the air inlet fan 22 extracts air in the tunnel through the filter 23 and the air deflector 24, the air enters the filter 23 in a V-shaped movement track under the guide of the air deflector 24, so that high-density particles and air can be effectively separated, the preliminary filtering effect is achieved, and the work load of the filter 23 can be effectively reduced; air enters the air inlet channel 21 from the filter 23, and under the filtering action of the filter 23, the air entering the air inlet channel 21 obtains good purifying effect; the air enters the top end of the humidifying channel 10 from the tail end of the air inlet channel 21, the atomizing nozzle 40 sprays water mist on the sinking and bending part of the air inlet channel 21, and the air after the air humidity of the water mist rises enters the air supply channel 30 below from the convex part in the center of the humidifying channel 10, and the humidifying channel 10 is bent in a W shape, so that the excessive water can be effectively prevented from overflowing into the air supply channel 30 or the air inlet channel 21, and the problem of long-term water dripping in a tunnel can be avoided; the exhaust fan 31 is sent into the tunnel again through purifying and wetting air, so that purified breathing air can be provided for personnel in the tunnel, the health of the personnel is ensured, the humidity in the tunnel can be increased, the fire disaster and even explosion caused by spark formation in the tunnel can be avoided, and the sedimentation effect of particulate matters such as dust can be effectively improved.
In this embodiment, the filter 23 includes the first filter screen 231 and the second filter screen 232, so that the filtering effect can be effectively improved.
Based on the above embodiment, the primary filter screen 231 is located on the side of the secondary filter screen 232 away from the air intake fan 22, and the aperture of the primary filter screen 231 is larger than that of the secondary filter screen 232, preferably, the primary filter screen 231 is a common steel filter screen, and the secondary filter screen 232 is an activated carbon filter screen.
In this embodiment, the below of aviation baffle 24 is equipped with waste collection groove 25, can effectively collect the particulate matter that subsides through aviation baffle 24 with higher speed through waste collection groove 25, and the particulate matter is collected and is clear away convenient operation, preferably, has the waste collection liquid such as water in the waste collection groove 25, can effectively avoid the particulate matter that subsides to rise again and pollute the air environment in the tunnel.
In this embodiment, an accelerating fan 26 is connected between the air inlet channel 21 and the humidification channel 10, and the accelerating fan 26 can accelerate air passing through the humidification channel 10 and entering the air supply channel 30, so that air blocking in the humidification channel 10 can be avoided to influence the air circulation effect.
In this embodiment, a flow rate sensor 27 is disposed in the air inlet channel 21, a signal output end of the flow rate sensor 27 is connected with an alarm, the alarm can be a buzzer, an alarm lamp or a communicator, when the flow rate sensor 27 senses that the air flow rate is lower than a critical value, the flow rate sensor 27 sends an alarm signal to alert an operator on duty to prompt the change of the filter 23, and the operator on duty can timely change the filter 23 to ensure the air circulation effect.
In this embodiment, drain pipes 28 are connected to the bottom ends of the two arms of the humidification channel 10, and one end of the drain pipe 28 away from the humidification channel 10 is connected to a sewer or a recovery water tank, so as to avoid bacteria from growing due to accumulation of moisture in the humidification channel 10.
In this embodiment, the humidity sensor 32 is disposed in the air supply channel 30, the signal output end of the humidity sensor 32 is connected to the switch of the atomizer 40 through the delay circuit, the humidity sensor 32 monitors that the humidity of the air in the air supply channel 30 is lower than a critical value, drives the delay circuit to open the switch of the atomizer 40 by sending a signal, and after reaching the set time of the delay circuit, the delay circuit automatically closes the atomizer 40, so that the energy and water resources can be effectively saved while the final air humidity is ensured, preferably, the delay device is a general delay switch, an electromagnetic valve is disposed between the atomizer 40 and the water supply pipe 41, and the delay switch controls the switch of the electromagnetic valve.
In this embodiment, the central top of the humidifying channel 10 is connected with an external air channel 50, a supplemental fan 51 is arranged in the external air channel 50, one end of the external air channel 50 is connected with the central top of the humidifying channel 10, the other end is connected with the external environment of the tunnel, fresh air in the external environment of the tunnel is extracted into the air supply channel 30 through the supplemental fan 51, the oxygen concentration in the tunnel can be effectively ensured, and the problems of hypoxia, dizzy and the like of personnel in the tunnel are avoided to cause traffic accidents.
The foregoing examples illustrate only a few embodiments of the invention and are described in detail herein without thereby limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.
Claims (9)
1. The utility model provides an explosion-proof safe type air circulation system suitable for traffic tunnel, its characterized in that includes humidification passageway (10) that are the W font, the both ends of humidification passageway (10) all are connected with an air inlet subassembly (20), the center bottom of humidification passageway (10) is connected with air supply passageway (30), be equipped with exhaust fan (31) in air supply passageway (30), the top of humidification passageway (10) is connected with a plurality of atomizer (40), atomizer (40) keep away from the one end of humidification passageway (10) is connected with delivery pipe (41);
the air inlet assembly (20) comprises an air inlet channel (21) which is in a C shape, the top end of the air inlet channel (21) is connected with the humidifying channel (10), an air inlet fan (22) and a filter (23) are sequentially arranged at the bottom end of the air inlet channel (21), a plurality of air deflectors (24) are arranged at one end, far away from the air inlet channel (21), of the filter (23), and the air deflectors (24) incline from top to bottom away from the filter (23).
2. An explosion-proof safety air circulation system for traffic tunnels according to claim 1, wherein the filter (23) comprises a primary screen (231) and a secondary screen (232).
3. An explosion-proof safety air circulation system suitable for a traffic tunnel according to claim 2, wherein the primary filter screen (231) is located at a side of the secondary filter screen (232) away from the air intake fan (22), and the aperture of the primary filter screen (231) is larger than the aperture of the secondary filter screen (232).
4. An explosion-proof safety air circulation system suitable for traffic tunnels according to claim 1, characterized in that a waste collection tank (25) is provided below the air deflector (24).
5. An explosion-proof safety air circulation system suitable for traffic tunnels according to claim 1, characterized in that an accelerating fan (26) is connected between the air inlet channel (21) and the humidifying channel (10).
6. An explosion-proof safety air circulation system suitable for a traffic tunnel according to claim 1, wherein a flow rate sensor (27) is arranged in the air inlet channel (21), and a signal output end of the flow rate sensor (27) is connected with an alarm.
7. An explosion-proof safety air circulation system suitable for traffic tunnels according to claim 1, wherein the bottom end of the humidifying channel (10) is connected with a drain pipe (28).
8. An explosion-proof safety air circulation system suitable for a traffic tunnel according to claim 1, wherein a humidity sensor (32) is arranged in the air supply channel (30), and a signal output end of the humidity sensor (32) is connected with a switch of the atomizing spray head (40) through a delay circuit.
9. An explosion-proof safety air circulation system suitable for traffic tunnels according to claim 1, characterized in that the central top of the humidifying channel (10) is connected with an external air channel (50), and a supplemental fan (51) is arranged in the external air channel (50).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011562670.4A CN112696220B (en) | 2020-12-25 | 2020-12-25 | Explosion-proof safe type air circulation system suitable for traffic tunnel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011562670.4A CN112696220B (en) | 2020-12-25 | 2020-12-25 | Explosion-proof safe type air circulation system suitable for traffic tunnel |
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| Publication Number | Publication Date |
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| CN112696220A CN112696220A (en) | 2021-04-23 |
| CN112696220B true CN112696220B (en) | 2023-05-12 |
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| CN202011562670.4A Active CN112696220B (en) | 2020-12-25 | 2020-12-25 | Explosion-proof safe type air circulation system suitable for traffic tunnel |
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Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19646766B4 (en) * | 1996-11-02 | 2005-02-10 | Lutz Sengbusch | Method and device for cleaning particles and harmful gases |
| CN205297617U (en) * | 2015-11-25 | 2016-06-08 | 天津瑞茂名果科技有限公司 | A air purification ventilation unit for tunnel |
| CN108266214A (en) * | 2017-12-28 | 2018-07-10 | 成都柒瑰科技有限公司 | Automobile tunnel ventilated purification apparatus |
| CN108194119A (en) * | 2018-01-23 | 2018-06-22 | 成都柒瑰科技有限公司 | Automobile tunnel with ventilated purification apparatus |
| CN208380620U (en) * | 2018-06-29 | 2019-01-15 | 东莞市鹏驰净化科技有限公司 | A kind of tunnel ventilation device |
| CN110953660A (en) * | 2018-09-27 | 2020-04-03 | 汉能移动能源控股集团有限公司 | Tunnel air purification system |
| 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 |
| CN209586418U (en) * | 2019-03-11 | 2019-11-05 | 孙会勇 | A kind of rail traffic subway construction ventilation device |
| CN110159334B (en) * | 2019-06-17 | 2024-03-22 | 西南交通大学 | Tunnel working face dirty wind cyclic utilization device |
| CN210798980U (en) * | 2019-08-20 | 2020-06-19 | 湖南省益阳公路桥梁建设有限责任公司 | Air exhaust purification type tunnel structure |
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Effective date of registration: 20220427 Address after: 523378 Building 2, No. 2, Langwei Road, Tangjiao, Chashan Town, Dongguan City, Guangdong Province Applicant after: Dongguan pengchi Intelligent Equipment Technology Co.,Ltd. Address before: 523378 Building 1, office building 2, Langwei Road, Tangjiao, Chashan Town, Dongguan City, Guangdong Province Applicant before: DONGGUAN PENGCHI PURIFICATION TECHNOLOGY Co.,Ltd. |
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