Non-pump constant flow low pressure drip irrigation device

Abstract

The invention discloses a non-pump constant flow low pressure drip irrigation device, comprising a main tube, a branch tube, a hair canal, a bypass closed hose, a micro path emitter, a support, a water tank, a main tube water pressure regulating mechanism and a branch tube water pressure regulating mechanism. Compared with the prior art, the invention has the advantages of stable pressure, energy saving, water saving, low costs, high irrigation evenness. The power for continuous irrigation is provide by a gravity flow generated from the water head of the water tank on high without a water pump. The main tube water pressure regulating mechanism regulates the water flow at the mouth of the main tube and the branch tube water pressure regulating mechanism ensures the work pressure at the inlet end of the hair canal to be constant, thus reducing the head loss. The bypass closed hose and an adjustable support arranged at the micro path emitter guarantee the outflow rate of each emitter along the hair canal to be equal. Therefore, the device has a good irrigation effect and is suitable for using in wide countryside.

Description

technical field [0001] The invention is aimed at small-scale farmland plots, and the device of the invention can be used to implement automatic and uniform irrigation under the condition that no water pump provides power. It belongs to the technical field of agricultural water-saving irrigation. Background technique [0002] The existing low-pressure drip irrigation technology relies on the water pump to provide continuous water flow power for low-pressure drip irrigation. In the process of drip irrigation along the capillary, due to the head loss of the water flow in the pipeline, the pressure of each drip point along the capillary changes along the process, resulting in each drip. The flow rate from the head is not equal, and the uniformity of irrigation is poor. Under low pressure, the existing drip irrigation technology is not energy-saving (because the water pump works continuously), and the irrigation uniformity and irrigation quality are not as good as those of norma...

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Problems solved by technology

[0002] The existing low-pressure drip irrigation technology relies on the water pump to provide continuous water flow power for low-pressure drip irrigation. In the process of drip irrigation along the capillary, due to the head loss of the water flow in the pipeline, the pressure of each drip point along the capillary changes along the process, resulting in each drip. The flow rate from the head is different, and the uniformity of irrigation is poor

Under low pressure, the existing drip irrigation technology is not energy-saving (because the water pump works continuously), and the irrigation uniformity and irrigation quality are not as good as those of normal pressure drip irrigation. However, the cost of normal pressure drip irrigation is high, and it is difficult to promote it in a large area in rural areas of our country.

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