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Axial flow hydraulic turbine electric generator system

A technology of power generation system and water turbine, which is applied in the directions of hydroelectric power generation, machine/engine, reaction engine, etc., can solve problems such as difficulty in mass production of water turbines

Inactive Publication Date: 2002-09-18
TOSHIBA PLANT SYSTEMS & SERVICES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it is difficult to efficiently mass-produce turbines of different sizes

Method used

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  • Axial flow hydraulic turbine electric generator system
  • Axial flow hydraulic turbine electric generator system
  • Axial flow hydraulic turbine electric generator system

Examples

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Effect test

no. 1 example

[0051] figure 1 is a cross-sectional view showing the structure of the axial flow turbine power generation system according to the first embodiment of the present invention.

[0052] exist figure 1 Among them, reference numeral 101 denotes a water turbine housing, which contains first and second unit axial flow turbines 102 and 103 arranged coaxially. The first and second unit axial flow turbines 102 and 103 are supported by an upstream side fixed guide vane 105 provided upstream of the impeller 104 incorporated into the first unit axial flow turbine 102, and It is fixed on the inner surface of the turbine housing 101 . The water turbines 102 and 103 are also supported by a downstream side fixed guide vane 107 provided downstream of an impeller 106 incorporated into the second unit axial flow turbine 103 and fixed inside the turbine housing 101. surface. In addition, an intermediate fixed guide vane 108 is fixed on the casing 101 and placed between the impeller 104 of the ...

no. 2 example

[0061] In the first embodiment, the generator casing 109 is arranged upstream of the axial flow turbine, and the generator 111 is located within the casing. This structure can be as image 3 As shown, a change is made, wherein an elbow 121 is connected upstream of the turbine casing 101, and the generator main shaft 111a of the generator 111 arranged outside the channel is inserted into the elbow 121 and connected with the axial flow turbine.

[0062] and figure 1 Compared with the structure shown in , this structure does not limit the size of the generator and can reduce the resistance of flowing water.

no. 3 example

[0064] Figure 4 is a cross-sectional view showing the structure of an axial flow turbine power generation system according to a third embodiment of the present invention.

[0065] In this embodiment, the first and second unit axial turbines 122 and 123 are configured to rotate in the same direction. In this structure, the shaft output power of the first and second unit axial flow turbines 122 and 123 can be delivered as an optimum torque for driving the generator 111 . Unlike the first embodiment, the third embodiment is suitable for a case where there is no rotating part in the flow at the outlet of the unit axial turbine on the upstream side.

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PUM

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Abstract

An axial-flow turbine power generation system, comprising: a plurality of unit axial-flow turbines (102, 103), these unit axial-flow turbines are arranged coaxially with each other in a flow channel along the direction of water flow, and have corresponding rotating impellers ( 104, 106); and a generator (111), which is arranged in parallel with the plurality of unit axial flow turbines (102, 103) along the water flow direction, and is driven by the shaft output power of the plurality of unit axial flow turbines. This structure enables mass-produced hydraulic turbines to be used in axial-flow hydraulic turbine power generation systems with various specifications such as various hydraulic pressures and various flow rates.

Description

technical field [0001] The present invention relates to an axial-flow water turbine power generation system, which combines an axial-flow water turbine with a fixed guide vane and a rotating impeller arranged coaxially with each other along the water flow direction. Background technique [0002] Typically, hydraulic systems have varying specifications, eg, may have different tips, flow rates, etc., which may depend on where they are installed. Therefore, the water turbines used are produced one by one according to different conditions of different installation locations. [0003] However, it is unavoidable that the efficiency of designing and producing water turbines of different specifications according to different installation locations is very low, and the manufacturing workshop for producing turbines requires high costs, which is not feasible from an economic point of view. In order to improve its feasibility from an economic point of view, it can be considered to incr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F03B3/04F03B13/10F03B17/06
CPCF03B13/105F03B17/061F05B2240/40Y02E10/20Y02P70/50
Inventor 山形一郎本间启清水光一郎赤松弘隆篠原朗中薗昌彦木崎康巳稻叶裕磨
Owner TOSHIBA PLANT SYSTEMS & SERVICES