a water turbine

The technology of a water turbine and a turbine shell is applied to a water turbine. It can solve the problems of large distance between the nozzle outlet and water turbine blades, reduced jet velocity, and low efficiency of water turbine, so as to achieve the effects of expanding sprinkler irrigation and operating range, reducing pressure loss, and increasing impact torque.

Active Publication Date: 2019-08-02
CHINA AGRI UNIV
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Problems solved by technology

[0004] At present, most of the water turbines of typical domestic reel sprinkler irrigation machines are imported from abroad in the mid-1990s. The speed of the jet flow is greatly reduced during the process of the blade, which leads to the low utilization rate of the jet energy of the nozzle by the water turbine, the driving torque generated by the water turbine is relatively small, and the efficiency of the water turbine is relatively low

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Embodiment Construction

[0025] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0026] figure 1 It is a structural schematic diagram of a water turbine according to the present invention, figure 2 for figure 1 sectional view of image 3 It is a structural schematic diagram of a nozzle of a water turbine according to the present invention, combined with Figure 1 to Figure 3 Shown, a kind of water turbine comprises: turbine casing 1, impeller 8 and and the nozzle 4 that drives described impeller rotation, and impeller 8 is coaxially installed in the turbine casing 1, and the center of impeller 8 is connected with transmission shaft 7, and turbine The side of the casing 1 is provided with a water inlet pipe 5, the top of the turbine casing 1 is pro...

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Abstract

The invention provides a water turbine. The water turbine comprises a turbine shell, an impeller and a spray nozzle driving the impeller to rotate. The impeller is coaxially arranged in the turbine shell. The rotation center of the impeller is connected with a transmission shaft. The side edge of the turbine shell is provided with a water inlet pipe. The top end of the turbine shell is provided with a water outlet pipe. The bottom of the turbine shell is connected with the turbine shell in a buckled manner. The transmission shaft penetrates through the turbine shell. The spray nozzle is arranged in the water inlet pipe. The spray nozzle gradually shrinks in the water flow direction. The outlet end face of the spray nozzle is located within the cylinder face where the inner wall face of theturbine shell is located. According to the water turbine, the outlet end face of the spray nozzle is arranged to be attached to the cylinder face where in the inner wall face of the turbine shell islocated, so that water flow can be injected into the impeller at a high speed, the internal pressure loss of the water turbine is lowered, under the condition that the water flow is certain, a largerdrive torque is provided for an external transmission device, and therefore the work efficiency of the water turbine is improved.

Description

technical field [0001] The invention relates to the technical field of agricultural machinery, and more specifically, to a water turbine. Background technique [0002] In recent years, the reel type sprinkler irrigation machine has been popularized and applied as a line sprinkler type sprinkler irrigation machine with relatively rapid development. It has the advantages of strong adaptability to terrain, labor saving, flexibility, and good spraying quality. [0003] The hydraulic drive devices of the reel sprinkler irrigation machine mainly include hydraulic cylinder type, rubber bladder type and water turbine type. The hydraulic cylinder type is to prevent the wear of the plunger cylinder and has strict requirements on water quality. The working wastewater is discharged in the roll The vicinity of the crank will affect the spraying quality. The rubber bag type also has strict requirements on water quality. The water turbine drive shaft device works smoothly, has no vibrati...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F03B3/12F03B3/18A01G25/02
CPCA01G25/02F03B3/12F03B3/121F03B3/18F05B2240/123Y02E10/20
Inventor 黎耀军张振洲严海军
Owner CHINA AGRI UNIV
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