Portable field manual simulation rainfall device

Abstract

The invention discloses a portable field manual simulation rainfall device which comprises a bracket formed by mutually welding circular tubes, wherein the bracket is integrally of a cuboid structure, support frames extend out of the top surface of the bracket respectively towards two sides in a mirror image manner, one layer of three-dimensional inverted trapezoidal weather cloth is sleeved outside the bracket, the bottom of the bracket is vertically fixed on a base, the bottom edge of the weather cloth is fixed on a frame of the base, the base is integrally of a right-triangle-shaped boxing structure, a runoff pipe communicated with the inside of the base is arranged at the bottom of the base, a nozzle bracket is arranged on one sides of the bracket and the base, a water pipe is fixed on the nozzle bracket, and the upper end of the water pipe is integrally connected with a water outlet pipe through a flange ring. The portable field manual simulation rainfall device adopts a circular rainfall manner and extremely less in water consumption, and has the advantages that accurate rainfall is realized in a small quadrat without influencing quadrats tightly adjacent around the quadrat, runoff can be synchronously collected, raininess and rainfall capacity can be regulated, the device is light, and the convenience in maintenance, carrying and installation can be achieved; the cost is low, and the popularization in the field is facilitated.

Description

technical field [0001] The invention relates to the field of processing and manufacturing of meteorological simulation equipment, in particular to a portable field artificial rainfall simulation device. Background technique [0002] Rainfall refers to the total amount of rainfall and rainfall distribution (including rainfall duration, rainfall frequency, and rainfall intensity) in a certain period of time. It has two scales of time and space, and is an important meteorological parameter and environmental element. Rainfall is the main source of water in most arid regions of my country, and field rainfall experiments are an important means to study community and plant effects and soil erosion. It is difficult to understand the effects and functions of rainfall by tracking natural rainfall, but accurate descriptions of rainfall processes, rainfall characteristics and effects, and water balance can be achieved by simulating rainfall. At the same time, the amount of water consum...

AI Technical Summary

Problems solved by technology

Among them, the rainfall devices with higher uniformity mostly use needle nozzles, but this type of rainfall devices has higher requirements on water quality, and the nozzles are easy to block

Other types of sprinkler rainfall devices focus on the simulation of the rainfall itself, but fail to meet the needs of the rainfall experiment itself. For example, in the grassland rainfall experiment, the minimum rainfall area is too large to meet the standard of accurate rainfall in the sample plot. Affect the test site outside the sample plot and the proportion of invalid rainfall loss during the rainfall process is high, and the test is greatly limited by the water source

In addition, less consideration is given to the influence of wind and other factors on rainfall, which leads to uneven rainfall and is inconvenient to carry in the field. When it rains in a dense small sample plot, it will affect the surrounding sample plots due to external splashes, resulting in poor accuracy and cost Large amount of water, low water efficiency and high cost are also its main shortcomings

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