Low-pressure drop irrigation filter group capable of automatically realizing balance
A filter group, automatic equalization technology, applied in the direction of filtration circuit, filtration separation, chemical instruments and methods, etc.
Inactive Publication Date: 2015-03-04
FARMLAND IRRIGATION RES INST CHINESE ACAD OF AGRI SCI
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Problems solved by technology
However, the parallel connection of multiple standard filters must first solve the problem of automatic balance when multiple standard filters are working normally, so as to ensure that each standard filter in parallel can exert its maximum performance
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[0010] A low-pressure drip irrigation filter group that can be automatically balanced, including: a standard filter and a filter group composed of standard filters connected in parallel. body 3 and auxiliary filter body 4, the main channel 1 in the order of water intake is the main channel water inlet 1-1, the main channel contraction section 1-2, the main channel expansion section 1-3, the main channel outlet 1-4, Circulation channel 2 is water inlet 2-1, circulation channel expansion section 2-2, circulation channel outlet 2-3 according to the water intake sequence, and the main filter body 3 is located in the main channel expansion section 1-3 According to the later part of the water intake sequence, the auxiliary filter body 4 is located in the middle of the expansion section 2-2 of the circulation channel, and the water inlet 2-1 of the circulation channel is located in front of the main filter body 3 in the expansion section 1-3 of the main channel , the outlet 2-3 of th...
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The invention belongs to the technical field of agricultural water saving irrigation, and in particular relates to a low-pressure drop irrigation filter group capable of automatically realizing balance. Irrigation water generates negative pressure when flowing through a contraction section of a main runner of a filter; under the action of the negative pressure, part of water enters a circulating runner through a circulating runner water inlet formed in the front surface of a main filtering body in a main runner expansion section and flows back into the main runner at a main runner contraction section after being filtered by an auxiliary filtering body; before the water enters the main filtering body, the auxiliary filtering body is used for performing auxiliary filtering, so that the running load of the main filtering body is reduced; when the flow of a certain filter in the parallel-connected filter group is increased, the negative pressure generated by the main runner contraction section of the filter is also increased, and the internally circulating flow for auxiliary filtering in the filter is also increased, so that finally the running load of the main filtering body in each parallelly-connected filter tends to be consistent, and each parallelly-connected filter can develop the maximum efficiency.
Description
Technical field: [0001] The invention belongs to the technical field of agricultural water-saving irrigation, and in particular relates to a low-pressure drip irrigation filter group capable of automatic balancing. Background technique: [0002] Drip irrigation is a kind of local irrigation, which consists of five parts: the first hub, the main pipe, the branch pipe, the capillary pipe, and the sprinkler. ①The head hub is responsible for water intake, pressurization and water treatment, and is composed of water pumps, fertilizer tanks, filters, pressure gauges, flow meters and other components; ②The main pipe plays the role of water delivery; Crop water demand, distribute irrigation water to the irrigation area; ④ Capillary pipes are connected with branch pipes to send water to the roots of crops; ⑤ Irrigators, including: drippers, water outlets, etc., have different types and shapes to Moisten the soil at the root of the crop. The outstanding advantages of drip irrigation...
Claims
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Login to View More IPC IPC(8): B01D36/02A01G25/02
Inventor 高胜国黄修桥韩启彪段福义孙浩刘杨李浩
Owner FARMLAND IRRIGATION RES INST CHINESE ACAD OF AGRI SCI