With the continuous innovation of technology, the traditional rainfall regulation method is far from meeting the needs of the experiment. In many of our projects, we constantly discover problems, constantly innovate technology, and fully automatic artificial simulation of rainfall devices | artificial rainfall simulator technology has been A great improvement has been made, which has enabled the company's fully automatic artificial simulated rain simulator | artificial rainfall simulator to be fully developed. In the project of the fully automatic artificial simulated rainfall device | artificial rainfall simulator in the Shenzhen Water and Soil Demonstration and Technology Park in 2009, we found that it is difficult to adjust and stabilize the setting by relying solely on the closed loop of the electronic flow regulating valve. The rain is strong. During the rainfall process, the deviation is constantly expanding. It is necessary to constantly adjust and track the regulating valve. Moreover, due to the error of the tipping bucket rain gauge itself, the actual error is far greater than the measurement error during the rainfall process. This point is a common problem in the entire artificial simulated rainfall industry. After the Shenzhen Soil and Water Conservation Demonstration Park, we updated the design concept with the addition of frequency converters and flow meters. It makes the control speed fast, the acquisition precision is high, and the traditional adjustment speed time is reduced from 70 seconds to 30 seconds using the double closed loop control system. Later, our fixed automatic artificial rainfall simulator | artificial rainfall simulator at Tsinghua University was successfully verified, and it was also verified in the portable rainfall simulator of Wuhan University of Technology.
First, the introduction
The automatic artificial simulated rainfall device|the artificial rainfall simulator system adopts a shielded water pump, which makes the system run with low noise, long life, waterproof and high reliability. The use of frequency converter enables the water output of the pump to be accurately controlled, and the adjustment of the electronic flow regulating valve, so that the accuracy is reliable and the operation is stable. Second, automatic artificial rainfall simulator | artificial rainfall simulator rainfall nozzle
In order to make the automatic artificial simulated rainfall device| artificial rainfall simulator rainfall and natural rainfall physical performance the most similar, the world's only professional production of simulated raindrop nozzles, the United States SPAYING SYSTEMS CO company's FULLJET rotary down spray nozzle to simulate rainfall, three kinds Different specifications (FULLJET1/8, 2/8, 3/8) vertical full-spray raindrop simulation special nozzles, superimposed into a raindrop spray group, can have a large rain intensity change, and can ensure the raindrop simulation effect to form from small to small The large rain intensity is continuously adjustable, and the raindrop shape, rainfall uniformity and artificial rainfall are similar to artificial rainfall. Based on the imitation of American sprinklers, the company boldly carried out technological innovations, which greatly extended the life of the sprinklers, thus completely bidding farewell to the ordinary nozzles, causing the possibility of use. The nozzle layout of the nozzles adopts a cross-over layout structure, so that the superposition and compensation are performed between each other, thereby ensuring the uniformity of rainfall.
Third, automatic artificial simulation rainer | artificial rainfall simulator pipeline layout
Fully automatic artificial rainfall simulator | artificial rainfall simulator pipeline part is made of high quality PPR outer tube liner stainless steel pipe, which greatly enhances the service life, and the life of the pipe can be used for 50 years. The pipe and fitting parts are connected by PPR stainless steel fittings, which guarantees an extended life of the system and avoids the possibility of rusting in a humid environment for a long time.
4. Automatic Artificial Simulated Rainfaller | Design of Artificial Rainfall Simulator Frame
The framework looks at the site and selects the appropriate framework according to the specific environment of the site.
Five, fully automatic artificial rainfall simulator | artificial rainfall simulator display
With indoor LED display, it can reliably display countdown, real-time rain intensity and average rain intensity. Supply voltage: DC24V;
Communication method: RS485.
Sixth, fully automatic artificial rainfall simulator | artificial rainfall simulator control system
This year, our company adopted the latest ARM technology and improved the control system, making the control system completely bid farewell to the original manual adjustment method of our company's first generation product, namely, the open loop method, and also bid farewell to the second generation product, namely single closed loop control. Now our company uses a double closed-loop control system, using ARM technology for precise control. The system is used in the pipeline water supply and drainage system of the Tsinghua University Planning Institute and the National Environmental Group Sander Group. Because it is a double closed-loop control system, it can quickly adjust and track data at high speed, so that the adjustment time is adjusted from the second-generation single closed-loop system. The time of more than 70 seconds has become less than 30 seconds now, and has been well received by teachers and students of Tsinghua University. It is also the only one in China that uses the latest control technology to improve the reliability of adjustment. At the same time, the system can connect external computer communication. Can be double standby
Seven, automatic artificial simulation rainer | artificial rainfall simulator software interface
Fully automatic artificial rainfall simulator|Artificial rainfall simulator software adopts the software independently developed by the company, with friendly man-machine dialogue and strong interface operation reliability. It is able to display the range of rain intensity changes through curves and find functions such as historical data.
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