CN112682085B - Purification and dust removal system for controlling dust concentration in tunnel interior decoration construction - Google Patents
Purification and dust removal system for controlling dust concentration in tunnel interior decoration construction Download PDFInfo
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- CN112682085B CN112682085B CN202011464738.5A CN202011464738A CN112682085B CN 112682085 B CN112682085 B CN 112682085B CN 202011464738 A CN202011464738 A CN 202011464738A CN 112682085 B CN112682085 B CN 112682085B
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Abstract
The invention relates to the technical field of tunnel construction and air purification, in particular to a purification and dust removal system for controlling the concentration of decorative construction dust in a tunnel, which comprises: the dust removal air curtain devices are respectively arranged at two ends of the operation area, detect the section size of the end part of the operation area and control the air outlet to form an air curtain according to the detection result; and any one of the circulating dust removal devices is communicated with the rest of the circulating dust removal devices and the dust removal air curtain device, is used for planning a dust removal path according to the detection data of the circulating dust removal device and the detection data exchanged by the communication of the circulating dust removal device, and is movable on the respective planned dust removal path for dust treatment. The invention has the beneficial effects that: 1. the requirement of local dust removal in the space of the ultra-long tunnel is met, and the problem of overhigh construction cost caused by overall ventilation is avoided; 2. the circulating dust removal device meets the requirement of moving at any time in a vehicle-mounted mode, and reduces the equipment conveying time and cost spent in construction turnover.
Description
Technical Field
The invention relates to the technical field of tunnel construction and air purification, in particular to a purification and dust removal system for controlling the concentration of decorative construction dust in a tunnel.
Background
A large amount of inhalable dust is generated in the construction process of the decoration engineering in the tunnel, and the PM10 concentration can reach 0.35-14.39mg/m through high-speed dry mass spectrometry under the condition of insufficient ventilation conditions, so that the secondary standard specified in the environmental air quality standard cannot be met. Under the condition of long-term high-concentration dust, the construction workers can be caused to have symptoms of cough, nasal obstruction, dry cough, palpitation, shortness of breath and the like, and the health of the construction workers is seriously harmed.
In the past, in the tunnel construction process, for improving the tunnel construction environment and reducing dust hazard, constructors usually adopt 5 types of methods of reducing, discharging, removing and blocking: (1) Reducing, namely adopting the modes of water spraying, wet drilling, wet spraying, water seal blasting and the like on the tunnel face to reduce dust produced in construction; (2) Lowering, namely, the dust concentration is lowered at a loading point and a transferring point of the transportation equipment by means of spraying, sprinkling, water curtain, foam spraying, wetting agent addition and the like; (3) Discharging, namely discharging the dust out of the tunnel in a mechanical ventilation mode, a dust separation curtain mode and the like; (4) The dust removal, namely, various dust removal and dust catcher are used for reducing the dust concentration; (5) The personal protection means such as a dustproof cap, a dustproof mask and the like are worn.
In practical engineering, dust prevention and control in tunnel construction mainly aims at ventilation and dust removal. At present, different dust removal technologies are mainly selected at home and abroad according to the length of the tunnel. Under the condition that the tunnel is short, a wind tower is mainly arranged at an outlet, and natural air is introduced into the tunnel by utilizing high-altitude strong wind pressure, so that the aim of diluting the air in the tunnel is fulfilled; and under the condition that the tunnel is long, an air dust removal device is installed on the side line in the tunnel so as to reduce the natural wind demand of the tunnel.
The mechanical ventilation mode mainly comprises four modes of press-in ventilation, suction ventilation, press-suction combined ventilation and shaft ventilation, so that air in the tunnel is promoted to flow to replace dust-containing air. In such an intra-tunnel integrated ventilation mode, when the tunnel space is large, a large amount of circulating air is required, and a large-scale ventilation facility is required and a large amount of electric energy is consumed.
The air dust removing device is suitable for being used in relatively closed and small space, and the filtering technology comprises wet dust removal, inertial dust removal, bag type dust removal and the like. According to the requirement of the use space, the dust removal devices with different air volumes are selected, and the regeneration of the filter assembly is completed by matching with the dust removal modes such as back flushing, rapping and the like.
When mechanical ventilation is adopted in the tunnel, the whole space of the tunnel is required to be used as a design target, and the ventilation equipment is huge in size and high in energy consumption. When only a few construction working faces exist in the tunnel, the whole ventilation is still needed, so that the construction cost is greatly increased, and meanwhile, the ventilation process can diffuse the raised dust generated by the working faces to the non-working faces, thereby increasing the cleaning workload and the finished product protection cost. The arrangement of the air dust removing device on the construction working face can reduce local dust concentration, but the air dust removing device is only suitable for being used in a relatively closed limited space. When the working surface is located in the tunnel space and a plurality of construction working surfaces and a small amount of air convection exist in the tunnel, the purification effect of the air dust removal device is greatly reduced. Set up a large amount of air dust collector, occupy construction space and increase construction cost by a wide margin, it is unrealistic too.
Disclosure of Invention
The invention aims to provide a purification and dust removal system for controlling the concentration of dust in the decoration construction in a tunnel, which solves the problems in the prior art.
In order to achieve the purpose, the invention provides the following technical scheme:
a purification and dust removal system for controlling the concentration of decoration construction dust in a tunnel comprises: the dust removal air curtain devices are respectively arranged at two ends of the operation area, detect the section size of the end part of the operation area and control the air outlet to form an air curtain according to the detection result; and any one of the circulating dust removal devices is communicated with the rest of the circulating dust removal devices and the dust removal air curtain device, is used for planning a dust removal path according to the detection data of the circulating dust removal device and the detection data exchanged by the communication of the circulating dust removal device, and is movable on the respective planned dust removal path for dust treatment.
As a further scheme of the invention: the detection data of the circulating dust removal device comprise a space distance parameter, a dust concentration parameter and a self working state of the working area.
As a still further scheme of the invention: the circulating dust removal device is communicated with the dust removal air curtain device through the Bluetooth module.
As a still further scheme of the invention: the circulating dust removal device is arranged on a vehicle, and the vehicle drives the circulating dust removal device to move on a dust removal path.
As a still further scheme of the invention: the circulating dust removal device comprises a sensor assembly, an electrostatic dust collector, a fan and a control assembly, wherein the sensor assembly detects the space parameters and the dust concentration of an operation area and transmits the space parameters and the dust concentration to the control assembly, an air outlet of the electrostatic dust collector is connected with an air inlet of the fan, and the control assembly respectively controls the fan and the electrostatic dust collector to absorb and purify air.
As a still further scheme of the invention: and the air inlet of the electrostatic dust collector is provided with a filtering component for filtering air.
As a still further scheme of the invention: the sensor assembly includes at least a distance sensor and a dust sensor.
As a still further scheme of the invention: the air outlet of the fan is provided with an electric jet air port, and the control assembly controls the air port direction of the electric jet air port.
As a still further scheme of the invention: the dust removal air curtain device comprises a controller, and an electrostatic dust collector, a centrifugal fan and a double-slit jet air port which are sequentially communicated, wherein the controller respectively controls the centrifugal fan and the electrostatic dust collector to absorb and purify air, and the purified air is discharged through the double-slit jet air port to form an air curtain.
As a still further scheme of the invention: the controller is connected with an operation unit and an indication unit, the operation unit controls the work of the electrostatic dust collector and the work of the centrifugal fan, and the indication unit is used for indicating the work states of the electrostatic dust collector and the centrifugal fan.
Compared with the prior art, the invention has the beneficial effects that: 1. the requirement of local dust removal in the space of the ultra-long tunnel is met, and the problem of overhigh construction cost caused by overall ventilation is avoided; 2. the circulating dust removal device adopts a vehicle-mounted mode, can directly use a vehicle-mounted power supply, can meet the requirement of moving at any time by matching with a battery, and reduces the equipment conveying time and cost problems spent in construction turnover.
Drawings
FIG. 1 is a schematic structural diagram of a purification and dust removal system for controlling dust concentration in tunnel interior decoration construction according to an embodiment of the present invention.
FIG. 2 is a schematic structural diagram of a circulating dust removal device and a circulating dust removal vehicle in an embodiment of the invention.
Fig. 3 is a schematic structural diagram of an adaptive dust-removing air curtain device in an embodiment of the invention.
In the drawings: 1. a long straight tunnel; 2. a circulating dust removal device; 3. a dust removal air curtain device; 4. a circulating dust removal vehicle; 2-1, air return shutters; 2-2, a distance sensor I;2-3, integrating an electric cabinet; 2-4, a fan; 2-5, electric jet tuyere; 2-6, an electrostatic precipitator I;2-7, a dust sensor; 3-1, double-seam jet flow air port; 3-2, a centrifugal fan; 3-3, an electrostatic precipitator II;3-4, starting and stopping a switch; 3-5, operating an indicator light; 3-6, an intelligent controller; 3-7 and a distance sensor II.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the exemplary embodiments below are not intended to represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present disclosure, as detailed in the appended claims.
Referring to fig. 1, in an embodiment of the present invention, a purification and dust removal system for controlling dust concentration in decoration construction in a tunnel includes: the dust removal air curtain devices 3 are respectively arranged at two ends of the operation area, the dust removal air curtain devices 3 detect the section size of the end part of the operation area, and control air outlet to form an air curtain according to the detection result; and any one of the circulating dust removal devices 2 is communicated with the rest of the circulating dust removal devices 2 and the dust removal air curtain device 3, and is used for planning a dust removal path according to the detection data of the circulating dust removal device 2 and the detection data exchanged by the communication, and performing dust treatment on the respective planned dust removal path.
The circulating dust removal device is arranged on a vehicle, the vehicle is a circulating dust removal vehicle 4, and the circulating dust removal vehicle 4 drives the circulating dust removal device to move on a dust removal path; during dust removal, only the operation area in the long straight tunnel 1 is subjected to dust removal, and other areas are not subjected to recorded dust removal; specifically, two dust removal air curtain devices are respectively arranged at two ends of an operation area; the air outlet of the dust removal air curtain device forms an air curtain; the air curtain blocks the air convection of the working area and the non-working area, so that dust outside the working area cannot circulate into the working area, and the working strength of dust removal is reduced. And then, the dust flowing in the operation area is removed by the two circulating dust removal devices in the operation area, so that the dust concentration in the operation area is maintained in a qualified range, the working efficiency of the circulating dust removal devices is adjusted in real time according to the dust concentration, and after the relatively low dust concentration is reached, the working power is properly reduced, so that the aim of prolonging the continuous working time is fulfilled.
The detection data of the circulating dust removal device comprise space distance parameters, dust concentration parameters and self working states of an operation area, the circulating dust removal device and the dust removal air curtain device are communicated through the Bluetooth module, and data are mutually shared to enable a plurality of circulating dust removal devices in the operation area to form a working group, and the dust concentration in the operation area is kept in a smaller difference interval through reasonable adjustment of the circulating dust removal devices, so that the improvement of the total dust removal efficiency is facilitated.
In conclusion, the purification and dust removal system for controlling the concentration of the decorative construction dust in the tunnel meets the requirement of local dust removal in an overlong tunnel space, and avoids the problem of overhigh construction cost caused by overall ventilation; and the circulation dust collector adopts on-vehicle mode, can directly use on-vehicle power, and the cooperation battery uses the demand that can satisfy the removal at any time, has reduced the equipment transport time and the cost problem that the construction turnover was spent.
Referring to fig. 2, in the embodiment of the present invention, the cyclic dust removal device includes a sensor component, an electrostatic dust collector, a fan, and a control component, the sensor component detects a spatial parameter and a dust concentration in an operation area and transmits the spatial parameter and the dust concentration to the control component, an air outlet of the electrostatic dust collector is connected to an air inlet of the fan, and the control component controls the fan and the electrostatic dust collector to absorb and purify air respectively.
The electrostatic dust collector is an electrostatic dust collector I2-6, the control assembly adopts an integrated electric control box 2-3, and the integrated electric control box 2-3 supplies power to the electrostatic dust collector I2-6 and the fan 2-4 and controls power supply power. An air outlet of the fan is provided with an electric jet air port 2-5, and the control assembly controls the air port direction of the electric jet air port; the sensor assembly comprises at least a distance sensor and a dust sensor 2-7, the distance sensor being a distance sensor I2-2.
The working process of the circulating dust removal device is as follows: and after the circulating dust removal vehicle 4 reaches the operation area, switching on and starting a power supply of the circulating dust removal device, connecting the distance sensor I2-2 with the dust removal air curtain device 3 through Bluetooth, automatically measuring the space size of the tunnel, and starting to operate after the service space size is determined. The air containing dust enters the electrostatic dust collector I2-6 under the action of the fan 2-4, more than 90% of dust is filtered and collected after the filtration treatment of the electrostatic dust collector I2-6, and the treated air is sent out from the electric jet air port 2-5, so that the cyclic dust removal process is realized. The dust sensor 2-7 measures the dust concentration in the air in real time in the operation process, and when the dust concentration is lower than a preset value, the operation air quantity of the fan 2-4 is adjusted, the operation energy consumption is reduced, and the working time is prolonged.
Furthermore, an air inlet of the electrostatic dust collector I2-6 is provided with a filtering component, the filtering component adopts an air return louver 2-1 comprising a coarse filter, and the air return louver 2-1 is used for primarily filtering air, so that the workload of the electrostatic dust collector I2-6 is reduced, and the dust removal efficiency is improved.
Referring to fig. 3, in another embodiment of the present invention, the dust-removing air curtain device 3 includes a controller, and an electrostatic dust collector, a centrifugal fan 3-2 and a double slit jet air port 3-1 which are sequentially connected, the controller respectively controls the centrifugal fan 3-2 and the electrostatic dust collector to absorb and purify air, and the purified air is discharged through the double slit jet air port 3-1 to form an air curtain.
Specifically, the dedusting air curtain device is backed to the wall of the long straight tunnel 1, the electrostatic deduster is an electrostatic deduster II3-3, the controller adopts an intelligent controller 3-6, the intelligent controller 3-6 is connected with a distance sensor II3-7, and the distance sensor II is electrically connected with the electrostatic deduster and a centrifugal fan 3-2 to control the power-on and power-off of the electrostatic deduster and the centrifugal fan and the power supply power.
Furthermore, the controller is connected with an operation unit and an indication unit, the operation unit controls the operation of the electrostatic dust collector and the centrifugal fan, and the indication unit is used for indicating the working states of the electrostatic dust collector and the centrifugal fan. The operation unit and the indication unit are respectively a start-stop switch 3-4 and an operation indicator lamp 3-5.
The working process of the dust removal air curtain device is as follows: the dust removal air curtain device is used by leaning against the wall of the long straight tunnel 1, and the air return side of the dust removal air curtain device faces to the operation area. After the power-on operation, the distance sensor II3-7 automatically measures the size of the cross section of the tunnel, and the working condition of the centrifugal fan 3-2 is adjusted through the intelligent controller 3-6, so that the control surface of the air curtain is matched with the cross section of the tunnel, and the problems of insufficient partition effect and the like caused by secondary dust raising caused by too high air speed and too small air speed are avoided. The dust-containing air is filtered by the electrostatic dust collector II3-3 under the action of the centrifugal fan 3-2, and more than 90% of dust is eliminated. The generated clean air is ejected through the double-slit jet air port 3-1, a double-layer air curtain is formed in the space, the air convection of an operation area and a non-operation area is blocked, and the diffusion influence of dust in other areas is reduced.
The working principle of the invention is as follows: the circulating dust removal device is arranged on a vehicle, the vehicle is a circulating dust removal vehicle 4, and the circulating dust removal vehicle 4 drives the circulating dust removal device to move on a dust removal path; during dust removal, only the operation area in the long straight tunnel 1 is subjected to dust removal, and other areas are not subjected to recorded dust removal; specifically, two dust removal air curtain devices are respectively arranged at two ends of an operation area; the air outlet of the dust removal air curtain device forms an air curtain; the air curtain blocks the air convection of the working area and the non-working area, so that dust outside the working area cannot circulate into the working area, and the working strength of dust removal is reduced. And then, the dust flowing in the operation area is removed by the two circulating dust removal devices in the operation area, so that the dust concentration in the operation area is maintained in a qualified range, the working efficiency of the circulating dust removal devices is adjusted in real time according to the dust concentration, and after the relatively low dust concentration is reached, the working power is properly reduced, so that the aim of prolonging the continuous working time is fulfilled.
It should be noted that the intelligent controller, the distance sensor I and the distance sensor II adopted in the present invention are all applications in the prior art, and those skilled in the art can implement the functions to be achieved according to the related description, or implement the technical characteristics to be achieved through similar technologies, and will not be described in detail herein.
Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure herein. This application is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.
It will be understood that the present disclosure is not limited to the precise arrangements that have been described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.
Claims (9)
1. The utility model provides a purify dust pelletizing system for decoration construction dust concentration control in tunnel which characterized in that includes:
the dust removal air curtain devices are respectively arranged at two ends of the operation area, detect the section size of the end part of the operation area and control the air outlet to form an air curtain according to the detection result;
the system comprises a plurality of circulating dust removal devices, a dust removal air curtain device and a dust removal system, wherein any circulating dust removal device is communicated with the rest circulating dust removal devices and the dust removal air curtain device, and is used for planning a dust removal path according to detection data of the circulating dust removal device and the detection data exchanged by communication of the circulating dust removal device and performing dust treatment on the planned dust removal path;
the circulating dust removal device comprises a sensor assembly, an electrostatic dust collector, a fan and a control assembly, wherein the sensor assembly detects the space parameters and the dust concentration of an operation area and transmits the space parameters and the dust concentration to the control assembly, an air outlet of the electrostatic dust collector is connected with an air inlet of the fan, and the control assembly respectively controls the fan and the electrostatic dust collector to absorb and purify air.
2. The purification and dust removal system for dust concentration control in tunnel decoration construction according to claim 1, wherein the detection data of the circulating dust removal device comprises a spatial distance parameter of a working area, a dust concentration parameter and an operating state of the circulating dust removal device.
3. The system of claim 1, wherein the circulating dust removal device and the dust removal air curtain device communicate with each other via a Bluetooth module.
4. The purification and dust removal system for controlling the concentration of the decoration construction dust in the tunnel according to claim 1, wherein the circulating dust removal device is arranged on a vehicle, and the vehicle drives the circulating dust removal device to move on a dust removal path.
5. The system of claim 1, wherein the air inlet of the electrostatic precipitator is provided with a filter assembly for filtering air.
6. The clean dedusting system for the concentration control of dust in the tunnel interior decoration operation of claim 1, wherein the sensor assembly comprises at least a distance sensor and a dust sensor.
7. The purification and dust removal system for controlling dust concentration in tunnel interior decoration construction according to claim 1, wherein the air outlet of the fan is provided with an electric jet air port, and the control component controls the air port direction of the electric jet air port.
8. The system of claim 1, wherein the dust-removing air curtain device comprises a controller, and an electrostatic precipitator, a centrifugal fan and a double slit jet tuyere which are connected in sequence, the controller controls the centrifugal fan and the electrostatic precipitator to absorb and purify air respectively, and the purified air is discharged through the double slit jet tuyere to form an air curtain.
9. The system of claim 8, wherein the controller is connected to an operation unit for controlling the operation of the electrostatic precipitator and the centrifugal fan, and an indication unit for indicating the operation status of the electrostatic precipitator and the centrifugal fan.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011464738.5A CN112682085B (en) | 2020-12-12 | 2020-12-12 | Purification and dust removal system for controlling dust concentration in tunnel interior decoration construction |
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| CN202011464738.5A CN112682085B (en) | 2020-12-12 | 2020-12-12 | Purification and dust removal system for controlling dust concentration in tunnel interior decoration construction |
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| CN112682085B true CN112682085B (en) | 2022-12-20 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113669100A (en) * | 2021-08-09 | 2021-11-19 | 廊坊康平空调制造有限公司 | Movable tunnel construction air isolation system with dust fall function |
| CN113775371A (en) * | 2021-09-26 | 2021-12-10 | 上海凯森环保科技有限公司 | Concentration jet air purifier for tunnel construction |
| CN113908651B (en) * | 2021-11-22 | 2023-04-18 | 江苏科技大学 | Steel structure workshop welding smoke dust collecting and purifying system and method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP4037305B2 (en) * | 2003-03-31 | 2008-01-23 | 西松建設株式会社 | Air curtain device for tunnel construction |
| CN1888396B (en) * | 2006-07-21 | 2010-06-16 | 中铁十七局集团有限公司 | Moving air curtain type smoke and dust removing method and apparatus thereof |
| CN107355252A (en) * | 2017-08-23 | 2017-11-17 | 黑龙江工业学院 | A kind of fully mechanized workface air curtain dust-collecting dedusting system |
| CN111119976A (en) * | 2020-01-21 | 2020-05-08 | 中国矿业大学 | Device and method for forming local dust-free space for mine |
| CN111441816A (en) * | 2020-05-11 | 2020-07-24 | 云南精格通风设备有限公司 | Tunnel construction dust removal vehicle |
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