CN114471033A - Subway station work progress active control sprays dust fall system - Google Patents
Subway station work progress active control sprays dust fall system Download PDFInfo
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- 239000000428 dust Substances 0.000 title claims abstract description 108
- 239000007921 spray Substances 0.000 title claims description 16
- 238000005507 spraying Methods 0.000 claims abstract description 121
- 238000012544 monitoring process Methods 0.000 claims abstract description 105
- 238000010276 construction Methods 0.000 claims abstract description 82
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 54
- 238000000034 method Methods 0.000 claims abstract description 24
- 239000003595 mist Substances 0.000 claims abstract description 13
- 238000012806 monitoring device Methods 0.000 claims description 30
- 238000013500 data storage Methods 0.000 claims description 16
- 230000005540 biological transmission Effects 0.000 claims description 15
- 229910000831 Steel Inorganic materials 0.000 claims description 9
- 239000010959 steel Substances 0.000 claims description 9
- 239000000284 extract Substances 0.000 claims description 8
- 230000001629 suppression Effects 0.000 claims description 7
- 238000004364 calculation method Methods 0.000 claims description 5
- 230000008054 signal transmission Effects 0.000 claims description 2
- 239000002245 particle Substances 0.000 description 4
- 238000009412 basement excavation Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 241001640558 Cotoneaster horizontalis Species 0.000 description 2
- 230000033228 biological regulation Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000003912 environmental pollution Methods 0.000 description 2
- 210000004072 lung Anatomy 0.000 description 2
- 239000000779 smoke Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 1
- 238000007726 management method Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000013618 particulate matter Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000008400 supply water Substances 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D47/00—Separating dispersed particles from gases, air or vapours by liquid as separating agent
- B01D47/06—Spray cleaning
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
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Abstract
The invention discloses a subway station construction process active control spraying dust-settling system, which comprises: the system comprises a monitoring system, a master control system, a movable spraying system, a construction enclosure structure and a construction platform; the monitoring system is used for monitoring the concentration and the temperature of the flying dust on the construction site in real time and sending real-time monitoring data; the main control system is used for receiving the real-time monitoring data, storing the real-time monitoring data and generating a control signal based on the real-time monitoring data; the movable spraying system is used for receiving the control signal and spraying and settling dust based on the control signal. According to the invention, each spraying device respectively reaches the optimal spraying position according to the raised dust concentration, the construction site temperature and the like monitored in real time in different construction sections of the subway station, and the high-efficiency treatment on the differential raised dust concentration caused by different construction modes in the construction site is realized through the combination form of different spraying water mist concentrations, so that the construction site construction environment of the subway station can always meet the emission requirement of urban construction.
Description
Technical Field
The invention belongs to the technical field of municipal construction, and particularly relates to an active control spraying dust-settling system for a subway station construction process.
Background
With the increasing urbanization of China, the number of subway engineering constructions is rapidly developed. Subway station structure is complicated relatively, the volume is great, so mostly adopt open cut method to be under construction, arouse a large amount of raise dust pollution in the work progress such as its foundation ditch excavation, dregs transportation, backfill, cause urban air environmental pollution problem not a little. The raised dust is a prominent pollution problem in the construction process of subway stations, is a very complex dust source, and has the main factors of inhalable particles (PM10) and particles capable of entering the lung (PM 2.5). The subway construction site is usually located in an area with large people flow, and if the flying dust is attached to buildings, stations and civil facilities along the subway, the health of people is seriously affected, so that the environmental pollution index must be strictly monitored in the subway station construction process.
The subway station construction has the characteristics of long period, small width and large length of a field section and the like, and dust fall measures of the subway station construction are different from those of traditional building foundation pit excavation and high-rise buildings. At present, dust fall measures in the subway station construction process mainly have two modes, namely water curtain wall type spraying dust fall and fog gun machine dust fall. The water curtain wall sprays mainly through enclosing fixed shower nozzle of fender structure top installation and conduit, and when opening the dust fall measure, all shower nozzles of whole job site all carry out the dust fall with the same concentration water smoke simultaneously, reach the effect that the large tracts of land evenly sprayed. Although the large tracts of land dust fall can be realized to the water curtain wall formula mode of spraying, nevertheless lack the pertinence measure to a large amount of dust falls of local area instantaneous production, produce high concentration raise dust construction conditions such as foundation ditch excavation. The water curtain wall sprays the dust fall mode, under the extravagant a large amount of water resource circumstances, still can't reach city environment air quality standard requirement. Fog gun mainly aims at local construction position dust fall, and fog gun machine makes high concentration water smoke, can effectively administer local region a large amount of raise dusts, makes it reach city environment air quality standard requirement, but its mobility is poor, administers regional singlely, and fog gun machine dust removal can occupy a large amount of engineering usage spaces simultaneously. At present, the existing spraying and dust-settling mode lacks flexibility, adjustability, instantaneity and other active control spraying and dust-settling capacities in the construction process of a subway station, so that the existing spraying device is urgently needed to be improved.
Disclosure of Invention
In order to solve the problems, according to the active control spraying dust suppression system provided by the invention, each spraying device respectively reaches the optimal spraying position according to the dust concentration, the construction site temperature and the like monitored in real time in different construction sections of the subway station, and the high-efficiency treatment on different dust concentrations is realized through the combination form of different spraying water mist concentration concentrations, so that the construction site construction environment of the subway station can always meet the emission requirement of urban construction.
In order to achieve the purpose, the invention provides an active control spraying dust-settling system for a subway station construction process, which comprises a monitoring system, a main control system, a movable spraying system, an enclosure structure and a construction platform, wherein the monitoring system is connected with the main control system;
the monitoring system is positioned on the enclosure structure and used for monitoring the concentration and the temperature of the flying dust on the construction site in real time and sending real-time monitoring data;
the main control system is positioned on the construction platform and used for receiving the real-time monitoring data, storing the real-time monitoring data and generating a control signal based on the real-time monitoring data;
the movable spraying system is located on the enclosure structure and used for receiving the control signal and spraying dust fall based on the control signal.
Optionally, the monitoring system comprises a gas collecting device, a raise dust concentration monitoring device, a fixing bolt hole, a temperature monitoring device and a data transmission device;
the monitoring systems are fixed at the middle height position of the enclosure structure through the fixing bolt holes and are arranged at equal intervals;
the gas collecting device is positioned at the top of the monitoring system and used for collecting gas of a construction site in real time;
the dust concentration monitoring device, the temperature monitoring device and the data transmission device are positioned in the monitoring system;
the dust concentration monitoring device and the temperature monitoring device are used for monitoring the construction site gas collected by the gas collecting device at fixed intervals in real time to obtain the real-time monitoring data;
the data transmission device is used for transmitting the real-time monitoring data to the master control system.
Optionally, the master control system includes a display screen, a data receiving device, a data storage device, a computing device, and a signal transmitting device;
the display screen is positioned at the top of the master control system and used for displaying the real-time monitoring data;
the data receiving device, the data storage device, the computing device and the signal sending device are positioned in the master control system;
the data receiving device is used for receiving the real-time monitoring data;
the data storage device is used for storing the real-time monitoring data;
the computing device is used for analyzing the real-time monitoring data and generating a control signal;
the signal sending device is used for sending the control signal.
Optionally, the movable spraying system comprises a slide rail, a driving device, a fan-shaped water mist spray head, a PE pipe, a signal receiving device, a steel rod, a water pilot type electromagnetic valve and a water pipe;
the slide rail is positioned on the enclosure structure and used for bearing the movable spraying system;
the driving device is positioned on the sliding rail and used for driving the movable spraying system to move;
the steel rod is used for forming a structural frame of the movable spraying system;
the upper end part of the structural frame bears the PE pipe, the signal receiving device and the water pilot electromagnetic valve are fixed in the middle of the structural frame, and the bottom of the structural frame bears the water pipe;
the top of the PE pipe is connected with the fan-shaped water mist spray head, and the bottom of the PE pipe is connected with the water pilot type electromagnetic valve and the water pipe;
the signal receiving device is used for receiving the control signal and further controlling the driving device to enable the movable spraying system to reach a specified position.
Optionally, the signal sending device sends the control signals in sequence according to a position sequence from far to near between the movable spraying system and the main control system.
Optionally, the analyzing, by the computing device, the real-time monitoring data includes:
the calculating device analyzes the real-time monitoring data, extracts the maximum value of a concentration interval, extracts the dust concentration values monitored by monitoring systems on the left side and the right side of the real-time monitoring data, acquires the maximum value of the dust concentration based on the maximum value of the concentration interval and the dust concentration values on the left side and the right side of the real-time monitoring data, namely, the maximum value of the dust concentration, calculates the maximum dust concentration, and generates the control signal based on the maximum dust concentration and a preset dust concentration threshold.
Optionally, the preset raise dust concentration threshold includes: a first concentration threshold, a second concentration threshold, and a third concentration threshold;
the first concentration threshold is less than the second concentration threshold, which is less than the third concentration threshold.
Optionally, the generated control signal comprises:
when the maximum raise dust concentration reaches the first concentration threshold value, the movable spraying system reaches the optimal spraying position, and the movable spraying system is half-opened;
when the maximum raise dust concentration reaches the second concentration threshold value, the movable spraying system is changed from half-open to full-open;
when the maximum raise dust concentration reaches the third concentration threshold value, the movable spraying systems are kept fully opened, and the interval positions among the movable spraying systems are encrypted.
Compared with the prior art, the invention has the following advantages and technical effects:
the main control system in the actively-controlled spraying dust-settling system actively monitors the concentration of the raised dust on a construction site, and actively controls the movable spraying system to move and spray through the main control system, so that the water curtain wall type spraying large-area dust-settling effect is achieved, the situation that the concentration of the local raised dust is too high can be treated, and high-efficiency and intelligent dust settling is realized. According to the raise dust concentration, the construction site temperature and the like of different construction sections of the subway station, which are monitored in real time, all the spraying devices respectively reach the optimal spraying positions, and the high-efficiency treatment on different raise dust concentrations is realized through the combination form of different concentrations, so that the construction site construction environment of the subway station can always meet the emission requirement of urban construction.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the application and, together with the description, serve to explain the application and are not intended to limit the application. In the drawings:
fig. 1 is a schematic structural view of an active control spraying dust-settling system in a subway station construction process according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a movable spraying system according to a first embodiment of the present invention;
FIG. 3 is a schematic structural diagram of a monitoring system according to a first embodiment of the present invention;
fig. 4 is a schematic structural diagram of a main control system according to a first embodiment of the present invention;
wherein, 1, a fence structure; 2. a construction platform; 3. a subway station foundation pit; 4. a movable spray system; 5. a monitoring system; 6. a master control system; 7. a slide rail; 8. a drive device; 9. a fan-shaped water mist spray head; 10. a PE pipe; 11. a signal receiving device; 12. a steel rod; 13. a pilot-operated electromagnetic valve for water; 14. a water pipe; 15. a gas collection device; 16. a raise dust concentration monitoring device; 17. fixing bolt holes; 18. a temperature monitoring device; 19. a data transmission device; 20. a display screen; 21. a data receiving device; 22. a data storage device; 23. a computing device; 24. and a signal transmitting device.
Detailed Description
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.
It should be noted that the steps illustrated in the flowcharts of the figures may be performed in a computer system such as a set of computer-executable instructions and that, although a logical order is illustrated in the flowcharts, in some cases, the steps illustrated or described may be performed in an order different than presented herein.
The invention provides an active control spraying dust-settling system for a subway station construction process, aiming at solving the problem that raised dust concentration exceeds the standard in different degrees caused by different construction processes in a subway station construction site, and the active control spraying dust-settling system comprises a monitoring system 5, a main control system 6, a movable spraying system 4, a construction enclosure structure 1 and a construction platform 2;
the monitoring system 5 is mounted on the construction enclosure structure 1 and used for monitoring the concentration and temperature of the raise dust on the construction site in real time and sending real-time monitoring data;
the main control system 6 is arranged on the construction platform 2 and used for receiving the real-time monitoring data, storing the real-time monitoring data and generating a control signal based on the real-time monitoring data;
and the movable spraying system 4 is installed on the construction enclosure structure 1 and used for receiving a control signal and spraying and dedusting based on the control signal.
The monitoring system 5 comprises a gas collecting device 15, a raise dust concentration monitoring device 16, a fixing bolt hole 17, a temperature monitoring device 18 and a data transmission device 19;
the monitoring system 5 is fixed at the middle height position of the enclosure structure 1 through a fixing bolt hole 17 and is arranged at equal intervals;
the gas collecting device 15 is fixed at the top of the monitoring system 5 and used for collecting gas of a construction site in real time;
the dust concentration monitoring device 16, the temperature monitoring device 18 and the data transmission device 19 are fixed in the monitoring system 5;
the dust concentration monitoring device 16 and the temperature monitoring device 18 are used for monitoring the construction site gas collected by the gas collecting device 15 at fixed intervals in real time to obtain real-time monitoring data;
the data transmission device 19 is used for transmitting the real-time monitoring data to the main control system 6.
The main control system 6 comprises a display screen 20, a data receiving device 21, a data storage device 22, a computing device 23 and a signal sending device 24;
the display screen 20 is fixed at the top of the main control system 6 and used for displaying real-time monitoring data;
the data receiving device 21, the data storage device 22, the computing device 23 and the signal sending device 24 are fixed inside the main control system 6;
the data receiving device 21 is used for receiving real-time monitoring data;
the data storage device 22 is used for storing real-time monitoring data;
the computing device 23 is used for analyzing the real-time monitoring data and generating a control signal;
the signal transmitting means 24 is used for sequentially transmitting control signals.
The movable spraying system 4 comprises a slide rail 7, a driving device 8, a fan-shaped water mist spray head 9, a PE pipe 10, a signal receiving device 11, a steel rod 12, a water pilot type electromagnetic valve 13 and a water pipe 14;
the sliding rail 7 is connected to the construction enclosure structure 1 and used for bearing the movable spraying system 4;
the driving device 8 is arranged on the slide rail 7 and is used for driving the movable spraying system 4;
the steel rod 12 is used for forming a structural framework of the movable spraying system 4;
the upper end part of the structural frame bears a PE pipe 10, a signal receiving device 11 and a water pilot type electromagnetic valve 13 are fixed in the middle of the structural frame, and the bottom of the structural frame bears a water pipe 14;
the top of the PE pipe 10 is connected with a fan-shaped water mist spray head 9, and the bottom of the PE pipe 10 is connected with a water pilot type electromagnetic valve 13 and a water pipe 14;
the signal receiving device 11 is used for receiving the control signal, and further controlling the driving device 8 to enable the movable spraying system 4 to reach a specified position.
The signal sending device 24 sends control signals in sequence according to the sequence from far to near between the movable spraying system 4 and the main control system 6.
The analyzing of the real-time monitoring data by the computing device 23 includes:
the calculating device 23 analyzes the real-time monitoring data, extracts the maximum value of the concentration interval, extracts the flying dust concentration value monitored by the monitoring systems 5 on the left side and the right side of the real-time monitoring data, acquires the maximum value of the flying dust concentration based on the maximum value of the concentration interval and the flying dust concentration values on the left side and the right side of the real-time monitoring data, sprays the optimal position at the maximum value of the flying dust concentration, calculates the maximum flying dust concentration, and generates a control signal based on the maximum flying dust concentration and the preset flying dust concentration threshold.
Predetermine raise dust concentration threshold value and include: a first concentration threshold, a second concentration threshold, and a third concentration threshold;
the first concentration threshold is less than the second concentration threshold, which is less than the third concentration threshold.
The generated control signals include:
when the maximum raise dust concentration reaches a first concentration threshold value, the movable spraying system reaches an optimal spraying position, and the movable spraying system is half-opened;
when the maximum raise dust concentration reaches a second concentration threshold value, the movable spraying system is changed from half-open to full-open;
when the maximum raise dust concentration reaches a third concentration threshold value, the movable spraying systems are kept fully opened, and the interval positions among the movable spraying systems are encrypted.
The invention provides an active control spraying dust-settling system, wherein a monitoring system 5 is arranged at the middle height of an enclosure structure 1 and can monitor the concentration, temperature and the like of real-time raised dust on a construction site, and a data transmission device 19 arranged in the monitoring system 5 transmits real-time data to a main control system 6; the data receiving device 21 of the main control system 6 receives data and displays real-time monitoring data through the display screen 20, the data storage device 22 stores all data, the calculating device 23 calculates the optimal spraying position and concentration according to the monitoring data, and the signal sending device 24 sends instructions to the movable spraying system 4 in sequence according to the principle that the distance from the main control system is far to near; a signal receiving device 11 in the movable spraying system 4 receives signals of the main control system 6, the driving device 8 moves the movable spraying system 4 to a specified position, a pilot electromagnetic valve 13 for water is opened to control the flow rate, and further the spraying concentration is controlled, and when the movable spraying system 4 reaches the specified position and is opened to spray, the working cycle of the spraying dust suppression system is actively controlled. At regular intervals, the monitoring system 5 sends data again, starting the next cycle.
Example one
As shown in fig. 1, the job site layout of a subway station construction process active control spraying dust fall system is provided in this embodiment, a subway station construction process active control spraying dust fall system mainly applies to subway station construction process raise dust and administers, including enclosing fender structure 1, construction platform 2 and subway station foundation ditch 3, active control sprays dust fall system mainly including installing to enclosing portable spraying system 4 and the monitoring system 5 on fender structure 1, sets up major control system 6 on construction platform 2. The monitoring systems 5 are arranged at one position on the enclosure structure 1 every 6m, and the movable spraying systems 4 are arranged in the middle of the monitoring systems 5 at two positions and are configured at 6m intervals.
As shown in fig. 2, the movable spraying system 4 mainly comprises a slide rail 7, a driving device 8, a fan-shaped water mist nozzle 9, a PE pipe 10, a signal receiving device 11, a steel rod 12, a pilot electromagnetic valve 13 for water, and a water pipe 14.
Furthermore, the slide rail 7 is welded on the enclosure structure 1, the movable spraying system 4 can be borne, the driving device 8 is installed on the slide rail 7, the automatic movement of the movable spraying system 4 can be achieved, the steel rod 12 serves as a structural framework of the movable spraying system 4, the PE pipe 10 is borne at the upper end, the signal receiving device 11 and the water pilot type electromagnetic valve 13 are fixed in the middle of the framework, the water pipe 14 is borne at the bottom, the top of the PE pipe 10 is connected with the fan-shaped fine water mist spray head 9, and the bottom of the PE pipe 10 is connected with the water pilot type electromagnetic valve 13 and the water pipe 14. The signal receiving device 11 receives the data sent by the signal sending device 24 in the main control system 6, and further controls the driving device 8 to enable the movable spraying system 4 to reach a specified position.
As shown in fig. 3, the monitoring system 5 includes a gas collecting device 15, a dust concentration monitoring device 16, a fixing bolt hole 17, a temperature monitoring device 18, and a data transmitting device 19.
Furthermore, the monitoring system 5 is fixed in the middle of the enclosure structure 1 through the fixing bolt holes 17, and the monitoring system 5 is arranged at every 6m along the longitudinal direction of the enclosure structure. The gas collecting device 15 is fixed at the top of the monitoring system 5 and can collect gas in a construction site in real time. The dust concentration monitoring device 16, the temperature monitoring device 18 and the data transmission device 19 are fixed inside the monitoring system 5. At regular intervals, the dust concentration monitoring device 16 and the temperature monitoring device 18 monitor the gas in the gas collecting device 15. The data transmission device 19 transmits the monitoring data of the dust concentration monitoring device 16 and the temperature monitoring device 18 to the main control system 6.
As shown in fig. 4, the main control system 6 includes a display screen 20, a data receiving device 21, a data storage device 22, a computing device 23, and a signal transmitting device 24.
Further, the master control system 6 is set up on the construction platform 2. The display screen 20 is fixed at the top of the main control system 6, can display real-time monitoring data, and is convenient for management personnel to supervise. The data receiving device 21, the data storage device 22, the computing device 23, and the signal transmitting device 24 are fixed inside the main control system 6. The data receiving means 21 receives the data and stores it in the data storage means 22. The calculation means 23 perform calculations on the data according to the designed algorithm. The signal transmission device 24 transmits a control signal.
The embodiment of the invention also provides an operation mode for actively controlling the spraying dust-settling system, and the operation method mainly comprises the following steps: when the subway station starts construction, the gas collecting device 15 collects gas on a construction site according to a fixed time interval; the collected gas is monitored by a dust concentration monitoring device 16 and a temperature monitoring device 18, and monitoring data is transmitted by a data transmission device 19. The data receiving device 21 in the master control system 6 receives data, the real-time monitoring data is displayed through the external display screen 20, and the data storage device 22 stores and retains the data; the calculating device 23 calculates the data according to a designed algorithm, determines the optimal spraying position and spraying concentration, and sends a signal to the movable spraying system 4 through the signal sending device 24. The signal receiving device 11 in the movable spraying system 4 receives signals, the receiving sequence is the sequence from far away to near the main control system 6, the signal receiving device 11 controls the driving device 8, the movable spraying system 4 actively arrives at an instruction place, the water pilot type electromagnetic valve 13 determines the opening degree according to the instruction, the spraying water mist concentration is further controlled, and the spraying dust-settling system is actively controlled to start spraying dust-settling. Repeating the operation within the specified time interval, and adjusting according to the data monitored in real time to ensure that the construction site meets the requirements of laws, regulations and standard standards.
Examples of the inventionAnd the calculation device 23 analyzes all data, extracts the maximum value of the concentration interval, and extracts the dust concentration values monitored by the monitoring systems 5 at the left side and the right side of the maximum value. The interval is defined as a region section with the maximum dust concentration, and the dust concentration values collected by two adjacent monitoring systems 5 at the position of the maximum region section are linearly changed. Calculating the maximum dust concentration (optimal spraying position) and calculating the maximum dust concentration c (mu g/m)3) Setting the maximum value c of the monitored dust concentration in the area section1(μg/m3) Let c be the larger value of the adjacent side monitoring dust concentration2(μg/m3) Setting the smaller value of the concentration of the dust on the adjacent side as c3(μg/m3) And x is the length from the position where the concentration to be monitored is maximum (direction c)2)：
The dust concentration treatment level refers to environmental air quality standard (GB3095-2012) issued by the State environmental protection administration, and the average emission concentration limit of inhalable particles (PM10) and particles capable of entering lung (PM2.5) in 24 hours is specified. And (3) online monitoring data of the construction site and local relevant departments networked according to the requirements of laws, regulations and standard specifications, wherein the times that any monitoring point position exceeds the concentration limit value of the particulate matter concentration limit value of the monitoring point shown in the table 1 in one day is more than three times, and the emission standard exceeding is judged.
TABLE 1
In the embodiment of the present invention, the first concentration threshold condition is the maximum dust concentration c1Greater than 30 mu g/m3Less than 40 mu g/m3The second concentration threshold condition is c1Greater than 40 μ g/m3Less than 50 mu g/m3The third concentration threshold condition is the maximum concentration c1Greater than 50 mug/m3。
If the maximum dust concentration c1Greater than 30 mu g/m3Less than 40 mu g/m3When the movable spraying system reaches the designated position, the water is half opened by the pilot electromagnetic valve for spraying. When the maximum concentration c1Greater than 40 μ g/m3Less than 50 mug/m3The movable spraying system 4 controls the pilot-operated type electromagnetic valve 13 for water to be fully opened, and spraying is carried out according to the maximum water mist concentration. If the maximum concentration c1Greater than 50 mug/m3The position of the spraying device of the movable spraying system 4 is adjusted, the original 6m is encrypted, and the position s of the movable spraying system 5 at the local position is determined by a formula:
s＝6-(c1-50)/4
the movable sprinkler system 4 is spaced 2m apart at the closest position. When the concentration of the local monitoring system is lower than 30 mu g/m3 after five continuous periods, the local area is determined to meet the urban construction emission standard. After the calculation, the signal transmitting device 24 sequentially transmits signals according to the distance from the main control system 6.
The working principle of the embodiment of the invention is as follows: when the construction is started, the main control system 6, the monitoring system 5 and the movable spraying system 4 are sequentially started, the water source is started, and the water pipe 14 starts to continuously supply water. The monitoring system 5 works continuously, data are transmitted through the data transmission device 19 within a set interval time, the data receiving device 21 in the main control system 6 simultaneously transmits the data to the external display screen 20, the data storage device 22 and the calculating device 23, when the monitored flying dust concentration exceeds 30 microgram/m 3, the calculating module starts to calculate the optimal spraying position and the optimal spraying concentration according to the algorithm, the signal sending device 24 sends signals in sequence according to the principle that the distance from the main control system 6 to the near, the signal receiving device 11 in the movable spraying system 4 receives the signals, the movable spraying system 4 is controlled to reach the designated position, and then the water pilot type electromagnetic valve 13 is controlled to spray and reduce dust. And repeating the process at the next time interval, and continuously adjusting the position and the spraying concentration of the movable spraying system 4 according to the monitored concentration.
The above description is only for the preferred embodiment of the present application, but the scope of the present application is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present application should be covered within the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (8)
1. The active control spraying dust-settling system for the construction process of the subway station is characterized by comprising a monitoring system (5), a main control system (6), a movable spraying system (4), a fence structure (1) and a construction platform (2);
the monitoring system (5) is positioned on the enclosure structure (1) and is used for monitoring the concentration and the temperature of the dust at the construction site in real time and sending real-time monitoring data;
the main control system (6) is positioned on the construction platform (2) and used for receiving the real-time monitoring data, storing the real-time monitoring data and generating a control signal based on the real-time monitoring data;
the movable spraying system (4) is located on the enclosure structure (1) and used for receiving the control signal and spraying and reducing dust based on the control signal.
2. The active control spraying dust suppression system for the subway station construction process as claimed in claim 1, wherein said monitoring system (5) comprises a gas collection device (15), a raise dust concentration monitoring device (16), a fixing bolt hole (17), a temperature monitoring device (18) and a data transmission device (19);
the monitoring systems (5) are fixed at the middle height position of the enclosure structure (1) through the fixing bolt holes (17) and are arranged at equal intervals;
the gas collecting device (15) is positioned at the top of the monitoring system (5) and is used for collecting gas of a construction site in real time;
the dust concentration monitoring device (16), the temperature monitoring device (18) and the data transmission device (19) are positioned in the monitoring system (5);
the dust concentration monitoring device (16) and the temperature monitoring device (18) are used for monitoring the construction site gas collected by the gas collecting device (15) at intervals of fixed time in real time to obtain the real-time monitoring data;
the data transmission device (19) is used for transmitting the real-time monitoring data to the main control system (6).
3. The active control spraying dust suppression system for the subway station construction process as claimed in claim 1, wherein said master control system (6) comprises a display screen (20), a data receiving device (21), a data storage device (22), a computing device (23) and a signal transmitting device (24);
the display screen (20) is positioned at the top of the main control system (6) and used for displaying the real-time monitoring data;
the data receiving device (21), the data storage device (22), the computing device (23) and the signal sending device (24) are positioned inside the master control system (6);
the data receiving device (21) is used for receiving the real-time monitoring data;
the data storage device (22) is used for storing the real-time monitoring data;
the computing device (23) is used for analyzing the real-time monitoring data and generating a control signal;
the signal transmitting device (24) is used for transmitting the control signal.
4. The active control spraying dust suppression system for the subway station construction process as claimed in claim 1, wherein said movable spraying system (4) comprises a slide rail (7), a driving device (8), a fan-shaped water mist spray head (9), a PE pipe (10), a signal receiving device (11), a steel rod (12), a water pilot electromagnetic valve (13) and a water pipe (14);
the sliding rail (7) is positioned on the enclosure structure (1) and is used for bearing the movable spraying system (4);
the driving device (8) is positioned on the sliding rail (7) and used for driving the movable spraying system to move (4);
the steel rod (12) is used for forming a structural framework of the movable spraying system (4);
the upper end part of the structural frame bears the PE pipe (10), the signal receiving device (11) and the water pilot type electromagnetic valve (13) are fixed in the middle of the structural frame, and the bottom of the structural frame bears the water pipe (14);
the top of the PE pipe (10) is connected with the fan-shaped water mist spray head (9), and the bottom of the PE pipe (10) is connected with the water pilot electromagnetic valve (13) and the water pipe (14);
the signal receiving device (11) is used for receiving the control signal and further controlling the driving device (8) to enable the movable spraying system (4) to reach a specified position.
5. The active control spraying dust suppression system for the subway station construction process as claimed in claim 3, wherein said signal transmission device (24) sequentially transmits said control signals according to the position sequence from far to near between said movable spraying system (4) and said main control system (6).
6. The active control spraying and dust falling system for subway station construction process according to claim 3, wherein said calculation means (23) analyzing said real-time monitoring data comprises:
the calculating device (23) analyzes the real-time monitoring data, extracts the maximum value of a concentration interval, extracts the dust concentration value monitored by the monitoring systems (5) on the left side and the right side adjacent to the real-time monitoring data, acquires the maximum value of the dust concentration based on the maximum value of the concentration interval and the dust concentration values on the left side and the right side adjacent to the real-time monitoring data, calculates the maximum dust concentration, and generates the control signal based on the maximum dust concentration and a preset dust concentration threshold.
7. The active control spraying dust suppression system for subway station construction process according to claim 6, wherein said preset raise dust concentration threshold value comprises: a first concentration threshold, a second concentration threshold, and a third concentration threshold;
the first concentration threshold is less than the second concentration threshold, which is less than the third concentration threshold.
8. The active control spraying dust-settling system for subway station construction process according to claim 7,
the control signal generated includes:
when the maximum raise dust concentration reaches the first concentration threshold value, the movable spraying system reaches the optimal spraying position, and the movable spraying system is half-opened;
when the maximum raise dust concentration reaches the second concentration threshold value, the movable spraying system is changed from half-open to full-open;
when the maximum raise dust concentration reaches the third concentration threshold value, the movable spraying systems are kept fully opened, and the interval positions among the movable spraying systems are encrypted.
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Cited By (1)
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| CN116672836A (en) * | 2023-06-08 | 2023-09-01 | 南京林业大学 | Automatic control spraying device for building site fence |
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