Its opening mode is mainly manual operation, which has great limitations in real-time and convenience.
Therefore, we make the following improvements according to the needs: (1) contact the intelligent manufacturer and link the spraying equipment with the environmental monitoring system through the mobile terminal platform, so as to make the operation of the equipment convenient and fast, meet the real-time monitoring of dust on the construction site, automatically spray and reduce dust after the dust parameters exceed the standard, and promote the realization of intelligent construction site at the same time.
For the use of multi-stage pump, pay attention to: fill the pump with water before use..
Figure 2.2-1 Special rotary universal joint for tower crane Figure 2.2-2 Spray diagram of tower crane Figure 2.2-3 Tower crane spray display 2.2.2 pipeline setting (1) an adjustable nozzle shall be installed at an interval according to the arm length of the tower crane boom at the construction site, and then the models of water pump, water pipe and universal joint shall be corresponding according to the required pressure and flow of each nozzle.
2.2.3 equipment parameters table 2.2-1 Equipment parameter name parameter working pressure 50kg booster pump power 7.5kw dust ≤ 120m fog titer 200-500 flushing must be unblocked nozzle high-pressure atomization chassis shall be fixed reliably fixed chassis shall slide evenly without blocking 2.3 enclosure spray 2.3.1 enclosure spray the flow pipeline of enclosure spray system is mainly composed of straight through, tee and PPR water pipe, The spray water source and transmission power are provided by the water tank and multi-stage pump respectively.
The Grand Theater has a construction area of 23294 square meters, 1259 fixed seats, 120 mobile seats, and the mass art museum has a construction area of 6540 square meters.
The main pollution to the environment during the construction of the project construction site is air pollution, which is manifested in PM10 and PM2.5 pollution, that is, micro particles inhaled by the human body.
(2) Transmission control protocol / network protocol is adopted, which can realize information transmission between multiple different networks and has perfect compatibility.
Project overview Jincheng culture and Art Center project is located in the north of Fengtai East Street and the east of planned culture road in the main urban area.
1.
It is equipped with chess and card room, elderly activity center, reading room, calligraphy, art The rehearsal hall and other classrooms, the children’s Art Center, with a construction area of 3896 square meters, are equipped with various studios, training classrooms and other functions, and the construction area of public auxiliary rooms is 12088 square meters.
2.
Its main functions include Grand Theater, mass art museum, children’s Art Center, underground garage and supporting rooms.
(3) It can monitor small particles harmful to human body, mainly PM10 and PM2.5.
Figure 2.1-1 environmental monitoring (PM value) Figure 2.1-2 Environmental monitoring (wind direction, noise) 2.1.1 system composition system composition: sensor composition for measuring wind, sensor for collecting noise measurement, temperature, humidity, air pressure sensor and particle sensor, wireless communication equipment and service center to platform software.
2.2 spray system 2.2.1 the spray system of tower crane is composed of PPR / PE pipe (galvanized steel pipe) as the main line, equipped with special rotary universal joint for tower crane, special support for tower crane, tee and adjustable nozzle, etc.
2.1.4 system features (1) the browser / server mode architecture is adopted, which can be used for a variety of operating systems.
Introduction to key systems 2.1 environmental monitoring system the environmental monitoring system can collect dust, meteorology, noise and other data in the project construction site, store, count and analyze them in the background, and then transmit them to the mobile terminal platform for display through WLAN.
Dust monitoring mainly includes PM10 and PM2.5 parameters, which are uploaded to the data center and monitoring platform in real time.
3.
The building has four floors above the ground and one floor underground.
The construction technology is applied to the green and civilized construction measures at the construction site of Jincheng culture and Art Center.
2.1.2 system framework introduction table 2.1-2 system framework application layer real-time monitoring dust monitoring meteorological monitoring noise monitoring platform layer dust data meteorological data basic data transmission layer wireless network sensing layer dust particle monitoring meteorological parameter monitoring noise parameter monitoring 2.1.3 function introduction the system integrates data acquisition, signal transmission, background data processing, terminal data display and other functions, It is composed of data processing system, noise monitoring system, dust monitoring system and mobile client.
Realize real-time data monitoring.
Provide accurate and continuous automatic dust monitoring every minute, and upload it to the server background program in real time for statistical analysis.
When the parameters exceed the standard on the new equipment, the spraying and dust reduction shall be started in time.
The data acquisition function provides real-time data to the LED screen for display.
Identify, check and store the collected monitoring data; Process the collected monitoring data according to the statistical requirements; Dust monitoring: check the dust and PM2.5 data of each dust monitoring device at the construction site, set the environmental threshold, and automatically start the dust removal equipment when the threshold is exceeded; Meteorological monitoring: monitor the meteorological conditions of the site; Noise monitoring: the noise data of each noise monitoring equipment can be checked at designated construction sites; Various data can be displayed in real time.
Data communication: wireless.
Collect PM2.5, PM10, noise, wind speed, Wind direction, temperature and humidity data.
Table 2.1-1 Equipment parameter name Dust measurement range of PM2.5 sensor: 0 ~ 2200ug / M ³ Resolution: 0.5ug/m ³ Measurement update: 1min PM10 sensor dust measurement range: 0 ~ 2200ug / M ³ Resolution: 0.5ug/m ³ Measurement update: 1min noise sensor measurement range: range: 20 ~ 120dB wind speed sensor range: 0 ~ 60m / s resolution: 0.1m/s startup wind speed: ≤ 0.5m/s wind direction sensor range: 0 ~ 360 ° resolution: 1 ° startup wind speed: ≤ 0.4m/s temperature sensor range: – 55 ~ 120 ℃ resolution: 0.1 ℃ humidity sensor range: 0 ~ 100% RH data collector 1.
The main measure to control dust on the construction site is spraying to reduce dust.
The main causes of these micro particle air pollutants are steel bars, square timber Small debris generated during the use and processing of formwork; Floating objects generated during concrete pouring and transportation; Fine dust floating during the excavation of foundation pit and the outward transportation of residue; Dust brought by transport vehicles during transportation.
2.
(4) Integrate meteorological monitoring parameters: humidity, atmospheric pressure, temperature, wind speed and wind direction.
Collect and store various monitoring data, and regularly send monitoring data and equipment working status to the background server according to the instructions of the background server.
(3) The spraying equipment is installed on the tower boom to achieve dust reduction in a larger and wider area.
(2) The two fixed supports are set on the special rotary universal joint of the tower crane, which not only meets the requirements of the standard parts of the tower crane, but also strictly prohibits welding, but also fully solves the problem of connecting the fixed screw buckle and the universal joint.
The total land area is 44265 square meters, with a total construction area of 45818 square meters, of which the aboveground construction area is 30057.1 square meters and the underground construction area is 15760.9 square meters.
(2) New environmental monitoring equipment is added to reduce the dust early warning parameters under the condition that the relevant parameters are the same as the equipment of the Environmental Protection Bureau.
(3) The universal joint of the sprinkler and the universal joint of the pipeline system must meet the setting of the universal axle core of the tower crane, and the universal axle core must be coaxial and concentric.
