A comprehensive test device and method for the performance of emitters in underground high-efficiency irrigation systems

Abstract

The present invention relates to a comprehensive test device and method of the underground efficient irrigation system irrigator performance. The comprehensive test device comprises a water source of which the outlet end is connected with a water pump, the water in the water source is pumped by the water pump and then flows into a filter via a water outlet pipe to be filtered, and then a part of water back flows to the water source via a first backflow pipeline, and the other part of water enters the inlet ends of the parallelly arranged tubular billets via a water supply branch pipe. The outlet ends of the tubular billets are connected with the inlet end of the water source via a second backflow pipeline to enable the water to back flow to the water source, a test unit is arranged at the tail end of each tubular billet, and the tubular billets are connected with the second backflow pipeline via the test units. The water outlet pipe located between the water pump and the filter is also equipped with a first valve, a second pressure regulation valve is arranged on the first backflow pipeline, and a diverter valve is arranged on the backflow pipeline. A pressure fine tuning valve and a pressure gauge are arranged on the water supply branch pipe close to the inlet ends of the parallelly arranged tubular billets. According to the present invention, the phenomena, such as the crop root invasion blocking, the negative pressure mud-suction blocking, etc., can be expressed very well.

Description

technical field [0001] The invention relates to an equipment performance testing device and method in the field of underground irrigation, in particular to a comprehensive testing device and method for the performance of an emitter in an underground high-efficiency irrigation system. Background technique [0002] Underground irrigation is currently the most promising high-efficiency irrigation method. Its main feature is that the irrigator is buried underground, and the water or the mixture of water and fertilizer is sent to the soil in the root zone of the crop through the underground pipe network system for absorption and utilization by the crop. , mainly including underground drip irrigation, trace irrigation, underground infiltration irrigation, negative pressure irrigation and other irrigation methods. This irrigation system can effectively reduce ineffective evaporation on the surface, keep the surface dry, improve farming conditions, etc. At the same time, it can also...

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Problems solved by technology

However, this test system only considers the hydraulic performance test, but cannot realize the anti-clogging performance test, and the test system does not involve the performance evaluation method of emitters

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