Water turbine of a small flow reel type sprinkler irrigation machine

Abstract

The invention discloses a water turbine for a reel-type sprinkler irrigation machine with a small flow rate, and aims to provide a water turbine for a reel-type sprinkler irrigation machine with high efficiency, low energy consumption, simple structure and low manufacturing cost. Including water inlet, nozzle, turbine cover, turbine housing, runner, drive shaft, water outlet. The water inlet of the turbine casing is used to be connected with the water inlet pipe, and the water outlet of the turbine casing is used to be connected with the water outlet pipe. The interior of the turbine casing is circular, the water inlet and outlet of the turbine casing are cast into a conical structure, and the conical nozzle is installed in the water inlet; one end of the drive shaft is connected to the runner, and the other end passes through the turbine casing and the transmission device Connected; fasten the turbine cover at the outer end of the turbine casing, and the part between the turbine casing, the runner and the turbine cover forms the turbine chamber; the water turbine runner is cast with aluminum alloy, and the nozzle is made of special plastic. The invention is suitable for irrigation of stadiums, golf courses, football fields, lawns, lawns, parks, gardens and various crops.

Description

technical field [0001] The invention belongs to the field of water turbine machinery, and in particular relates to a water turbine in a hydraulic driving device of a reel sprinkler irrigation machine. Background technique [0002] The reel sprinkler irrigation machine is a novel mechanism developed on the basis of the pipe transfer sprinkler irrigation system in the early 1970s, which has a compact structure, convenient movement, fewer operators, and a higher degree of intelligence. It has the advantages of high degree, simple and convenient operation and management, and good irrigation effect. It is more suitable for the needs of rural development in my country and is one of the main models in the sprinkler irrigation industry in my country. The hydraulic driving device of the reel sprinkler irrigation machine mainly includes four types: rotary nozzle type, water turbine type, hydraulic cylinder type and telescopic bladder type. The water turbine system has high reliability ...

AI Technical Summary

Problems solved by technology

In 2000, Wang Jiabao et al. invented the utility model patent "Light Coil Winch Sprinkler Irrigation Machine" (Authorization No. CN2372903Y), which disclosed a reel type sprinkler irrigation machine water turbine, and described in detail the operation of an impact water turbine on the sprinkler irrigation machine. Installation and fixing and the working form of the water turbine, but did not further introduce the internal structure of the water turbine volute and the structure of the water turbine blade; in 2007, Li Guomin et al. "8PJ-75 / 300 new coiled pipe capstan sprinkler irrigation machine" Research" researches a new type of water turbine, analyzes and compares the structure of a jet impingement axial flow water turbine, and does basic research on this water turbine from the concept of fluid mechanics, but does not The turbine blade structure is introduced in detail; in 2012, the utility model patent "Water Turbine for Reel Irrigation Machine" (authorized number CN202645824U) invented by Liu Nianmin et al. discloses a water turbine for reel irrigation machine, which mainly describes a The structure of the volute body of the water turbine and the relative positions of the water inlet and the water outlet. By increasing the length of the water inlet and the water outlet, the water spray effect is better and the efficiency is improved. The blade structure of the water turbine and the internal structure of the volute are also not introduced.

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