Underground drip irrigation obstruction degree original position quantification diagnosis method based on transient ventilation principle and diagnosis system thereof
An underground drip irrigation and diagnosis system technology, applied in the field of farmland irrigation, can solve the problems of blockage disturbance and time lag, damage of excavation measurement method, labor and material resources consumption, etc., and achieve convenient use, management and maintenance, easy operation and low cost Effect
Inactive Publication Date: 2014-04-09
LUDONG UNIVERSITY
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Problems solved by technology
[0007] The invention mainly solves the problems that the existing excavation measurement method for judging the clogging status of the underground drip irrigation system has destructive effects, consumes a lot of manpower and material resources, and often has disturbance, time lag and low precision in judging the clogging method.
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Embodiment 1
[0020] Example 1, see figure 1 , the pump 1 is used as the air supply equipment, the pump 1 has a switch valve 3 and a valve 2, the valve 2 is connected to a branch of the tee 6 through the first connecting hose 4, and a branch of the tee 6 passes through The hose is connected to the pressure gauge 5, and the other branch of the tee 6 is sealed and connected to the air intake duct 14 on the rubber stopper 8 at the top of the gas storage bottle 9 through the second connection hose 12, and the gas storage bottle 9 is made of hard material , without deformation, the air outlet air pipe 7 on the rubber stopper 8 is tightly connected with the third connecting hose 13, and the third connecting hose 13 is connected with one end of the drip irrigation capillary 11.
[0021] A kind of underground drip irrigation clogging degree in-situ quantitative diagnosis method based on transient aeration principle of the present invention, it comprises following process step: select a certain poin...
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The invention discloses an underground drip irrigation obstruction degree original position quantification diagnosis method based on transient ventilation principle and a diagnosis system thereof. The system comprises air feed equipment and is characterized in that: the air feed equipment is provided with a switch valve (3) and an inflating valve (2), the inflating valve (2) connects with a branch pipe of a three-way pipe (6), the three-way pipe (6) connects with a pressure gauge (5) and a gas-guide tube (7) at an rubber plug (8) of a gas storage cylinder (9) top, and the other gas-guide tube (7) is in sealed connecting with an underground drip irrigation hollow billet through a connecting flexible pipe; the diagnosis method is that based on an air conduction principle of the underground drip irrigation hollow billet, through establishing a quantification relation between an air conduction characteristic parameter and irrigation device obstruction status, purposes of rapid, original position, and quantification diagnosis of underground drip irrigation obstruction status are reached.
Description
technical field [0001] The invention relates to the technical field of farmland irrigation, in particular to an in-situ quantitative diagnosis method and a diagnosis system for underground drip irrigation blockage based on the principle of transient ventilation. Background technique [0002] Underground drip irrigation technology has developed rapidly in recent years. Underground drip irrigation capillaries and emitters are buried underground, and irrigation water and fertilizer can be directly transported to the root zone of crops, effectively reducing surface evaporation and deep leakage, and significantly improving water and fertilizer utilization. However, underground drip irrigation can easily cause clogging. In addition to the traditional clogging caused by irrigation water quality, root invasion and negative pressure mud suction are also one of the important causes of clogging. Therefore, compared with surface drip irrigation, underground drip irrigation is more like...
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IPC IPC(8): G01M3/28
Inventor 张振华牛文全张贵民张富仓李陆生
Owner LUDONG UNIVERSITY