A detachable spiral labyrinth emitter with adjustable flow rate

Abstract

The invention discloses a flow-adjustable detachable spiral type labyrinth emitter. The emitter is characterized by comprising an emitter body, a water outlet annular cavity in threaded connection with the outside of the emitter body, and capillary pipes in threaded connection with the two ends of the emitter body; a spiral labyrinth flow channel and an outer thread are arranged on the outer wall of the body emitter; a water inlet is formed in the outer wall close to one end of the emitter body, and the water inlet is communicated with an inner cavity of the emitter body and the spiral labyrinth flow channel; a water outlet is formed in the outer wall of the water outlet annular cavity, and the water outlet is communicated with the spiral labyrinth flow channel of the emitter body. The emitter body and the water outlet annular cavity can be conveniently screwed or separated, the flow at the water outlet is adjustable, cleaning and overhauling of the emitter body are facilitated, and the anti-blocking performance and reutilization performance of the whole emitter are improved.

Description

technical field [0001] The invention relates to a sprinkler, in particular to a detachable spiral labyrinth sprinkler with adjustable flow, which belongs to the technical field of water-saving irrigation equipment in agricultural production. Background technique [0002] The labyrinth emitter has the advantages of good energy dissipation effect, uniform water output, low manufacturing cost, and wide application range, and is regarded as the emitter with the best performance at present. Usually, in order to obtain a stable and uniform low flow rate, the internal flow channel size of the labyrinth channel emitter is generally between 0.5 and 1.2 mm, which is prone to blockage. The clogging problem has always been the focus and difficult problem of scholars at home and abroad. The flow state inside the emitter has a great influence on its hydraulic performance. When clogging occurs, the hydraulic performance of the water flow inside the flow channel will deteriorate, and the un...

AI Technical Summary

Problems solved by technology

Usually, in order to obtain a stable and uniform low flow rate, the internal flow channel size of the labyrinth channel emitter is generally between 0.5 and 1.2 mm, which is prone to blockage

The problem of clogging has always been the focus and difficult problem of domestic and foreign scholars. The flow state inside the emitter has a great impact on its hydraulic performance. When clogging occurs, the hydraulic performance of the water flow inside the flow channel will deteriorate, and the uniformity of irrigation will be affected.

Practical experience shows that clogging is unavoidable. Under normal circumstances, field sprinklers will be clogged to varying degrees in about two years on average. 3 physical blockage, the light blockage will affect the irrigation uniformity of the emitter, and the serious one will need to replace the irrigation pipe and belt, which not only increases the investment and maintenance costs, but also seriously hinders the promotion and application of the labyrinth emitter; The flow rate of labyrinth emitters commonly used in China is generally 1-4L / h. Each type of emitter can only achieve single-flow irrigation, which cannot meet the changing needs of crops in different growth cycles. Deviation from the concept of water-saving irrigation has exacerbated the shortage of agricultural water; when the amount of irrigation water is less than the water demand of crops, it cannot meet the normal water demand of crops during the growth cycle

In addition, the materials used in the most commonly used labyrinth drip irrigation products in China are generally PE pipes, which cannot be disassembled or reused.

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