pressure compensated emitter
A pressure compensation and sprinkler technology, applied in watering devices, horticulture, agriculture, etc., can solve problems such as unstable outflow, great influence on outflow, and limited energy dissipation effect
Active Publication Date: 2020-05-12
CHINA AGRI UNIV
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Problems solved by technology
[0004] However, although the above-mentioned emitter adopts the variable curvature anti-clogging flow channel to achieve the purpose of preventing the emitter flow channel from clogging, the variable curvature anti-clogging flow channel is designed according to the principle of Euclidean geometry, and its energy dissipation effect is limited, which makes the pressure compensation ability of the emitter Low, causing the outflow of the emitter to be greatly affected by the pressure of the irrigation water when the emitter is irrigating, and the outflow is unstable
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[0033] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are the Some, but not all, embodiments are invented. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0034] figure 1 A cross-sectional view of a pressure-compensated emitter provided by an embodiment of the present invention, figure 2 A three-dimensional view of a pressure-compensated emitter provided in an embodiment of the present invention, such as figure 1 and figure 2 As shown, the emitter includes: an upper cover 1 provided with an emitter water inlet 11, a ...
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An embodiment of the invention provided a pressure compensation emitter, and relates to the technical field of agricultural water-saving irrigation. The emitter comprises an upper cover (1) provided with an emitter water inlet (11), a base (2) provided with an emitter water outlet (21), and an elastic membrane (3). The base (2) is fastened in an inner cavity of the upper cover (1), and the outer side wall of the base (2) is provided with a fractal flow path (4). The fractal flow path (4) is provided with a fractal flow path water inlet (41) and a fractal flow path water outlet (42), and the boundary line and the center line of the fractal flow path are fractal curves. Through using efficient energy dissipation effect of the fractal flow path, the pressure compensation emitter can perform effective pressure compensation under a low pressure condition, so as to ensure stable effluent of the emitter. The emitter is suitable to be used for large-area and long-distance drop irrigation.
Description
technical field [0001] Embodiments of the present invention relate to the technical field of agricultural water-saving irrigation, and more particularly, relate to a pressure compensation sprinkler. Background technique [0002] The emitter is the core and key part of the entire drip irrigation system, and its structure has a great influence on the uniformity of irrigation, the anti-clogging ability and life of the system. Especially under the condition of large slope terrain, the uniformity of irrigation is inconsistent, which has become a technical bottleneck problem restricting the development of drip irrigation industry. The pressure compensation emitter has the advantages of good compensation performance, uniform irrigation, long laying length, and wide application range. It is especially suitable for situations with large terrain fluctuations, unstable system pressure, and long capillaries. It has become a research hotspot in countries all over the world. At the end o...
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IPC IPC(8): A01G25/00
Inventor 杨培岭李旭任树梅
Owner CHINA AGRI UNIV