Manual simulation rainfall device and method capable of generating various complex rainfall patterns

A kind of artificial simulation and complex technology, which is applied in material inspection products, soil material testing and other directions to achieve the effects of accurate rain intensity control, wide flow adjustment range and simple operation.

Inactive Publication Date: 2017-08-18
ANHUI UNIVERSITY OF TECHNOLOGY
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The present invention aims to overcome the above-mentioned defects in the existing artificial simulated rainfall devices, a

Method used

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  • Manual simulation rainfall device and method capable of generating various complex rainfall patterns
  • Manual simulation rainfall device and method capable of generating various complex rainfall patterns
  • Manual simulation rainfall device and method capable of generating various complex rainfall patterns

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Experimental program
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Effect test

Embodiment 1

[0052] This embodiment takes Ma'anshan City, Anhui Province as the background, combining figure 1 , utilize the device provided by the invention to produce the simulated rainfall of Chicago rain pattern, concrete steps are as follows:

[0053] Step 1. Assume that the required rainfall area for the experiment is 3m 2 , according to the Maanshan rainstorm intensity formula, calculate the Chicago rain pattern with a return period of 1 year, rainfall duration of 10 minutes, and rain peak position r=0.5 (take this as an example), and calculate according to the specified flow rate of the water pump and the frequency range of the frequency converter. The result is as follows Table 1 shows.

[0054] Table 1 Return period of 1 year and 10 minutes Chicago rain pattern and its corresponding rainfall and frequency

[0055]

[0056]

[0057] Step 2. According to the results in Table 1, set the frequency corresponding to the 10-min Chicago rain pattern on the control program paramet...

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Abstract

The invention discloses a manual simulation rainfall device and method capable of generating various complex rainfall patterns, and belongs to the technical field of urban drainage. The manual simulation rainfall device comprises a water supply system, a discharge measurement switching system, and adjustable lifting bracket system, a shower nozzle system and a discharge program control system capable of generating complex rainfall patterns including Chicago rainfall patterns and the like, wherein the water supply system is connected with the shower nozzle system through the discharge measurement switching system; through the combined action of the discharge program control system and the discharge measurement switching system, the water supply discharge of the water supply system is controlled. According to the manual simulation rainfall device, the rainfall processes of the complex rainfall patterns including Chicago rainfall patterns and the like can be simulated, so that the manual simulation rainfall device has the advantages of high rainfall intensity control accuracy, wide adjustment range, simple equipment and convenience in installation and use, and the requirements of development facility performance rainfall experiment research with low influence in sponge cities and rainfall surface runoff process relative experiments in the technical field of urban drainage are met.

Description

technical field [0001] The invention belongs to the technical field of urban drainage, and more specifically relates to an artificial simulated rainfall device for generating relatively complex rain patterns such as Chicago rain patterns. Background technique [0002] The natural rainfall process usually has uncertainty in time and uncontrollability in intensity. By artificially simulating rainfall, a certain amount and intensity of rainfall can be artificially produced, which shortens the experimental period and speeds up the project research plan. At present, the country is piloting the construction of sponge cities, and the reduction and control of urban surface runoff and the reduction of non-point source pollution are one of the main goals. It is very important and urgent to grasp the law of surface runoff and the performance of low-impact development facilities. [0003] Artificial rainfall simulation devices are widely used in the research of soil erosion and other ...

Claims

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Application Information

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IPC IPC(8): G01N33/24
CPCG01N33/24
Inventor 汪明明王坤孙远祥
Owner ANHUI UNIVERSITY OF TECHNOLOGY
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