Water turbine device and hydraulic power generation device

• US 10,641,238 B2
• Filed: 03/09/2017
• Issued: 05/05/2020
• Est. Priority Date: 03/22/2016
• Status: Active Grant

• Current Assignee: NTN Corporation
• Original Assignee: NTN Corporation
• Inventors: Suzuki, Masahiko
• Primary Examiner(s): Patel, Tulsidas C
• Assistant Examiner(s): Quigley, Thomas K
• Application Number:
  US16/086,679
• Publication Number:
  US 20190101097A1
• Time in Patent Office: 1,153 Days
• CPC Class Codes: F03B 13/083 The generator rotor being mounted as turbine rotor rim
• CPC Class Codes: F03B 13/10 Submerged units incorporating electric generators or motors
• CPC Class Codes: F03B 17/061 with rotation axis substantially in flow direction
• CPC Class Codes: F05B 2220/32 in water turbines
• CPC Class Codes: F05B 2220/706 an electrical generator
• CPC Class Codes: F05B 2240/90 Mounting on supporting structures or systems
• CPC Class Codes: F05B 2240/916 with provision for hoisting onto the structure
• CPC Class Codes: F05B 2240/97 on a submerged structure
• CPC Class Codes: F05B 2260/5032 of the bevel or angled type
• CPC Class Codes: Y02E 10/20 Hydro energy
• CPC Class Codes: Y02E 10/30 Energy from the sea, e.g. using wave energy or salinity gradient

Abstract

A water turbine device is provided which can move a water turbine from a use position to a nonuse position with a light force, and which has a simplified structure. An intermediate portion of a suspension support rod for suspending a water turbine immersed in a flowing water in a waterway is pivotally attached to a platform provided on the waterway with a horizontal shaft, and a power generation device as a balance weight is provided at the free end of the suspension support rod, and the water turbine is rotatable around the horizontal shaft between the use position where the water turbine is immersed in a flowing water and the nonuse position above the flowing water.

Claims

1. A hydroelectric power generation device comprising:

a support base that is bridged over upper edges of both sides of a water channel, wherein the support base is rectangular shaped;

a water turbine housing held on the support base and provided with a generator inside;

wherein the support base comprises;

a through hole provided in a central portion of the support base configured to allow the water turbine housing to pass through,

an installation portion provided at the upstream end of the through hole of the support base and capable of fitting with a suspension support body fixed to an upper surface of the water turbine housing, and

a downstream side portion provided on the downstream side of the through hole,

wherein a rotor connected to a rotating shaft of the generator protrudes downstream from the water turbine housing,

wherein the rotor has a plurality of lifting type blades, and the blade tip of the lifting type blade has an inclined portion inclined in an upstream direction,

wherein the downstream portion of the through hole has a shape that allows the rotor to move in and out,

wherein a pair of left and right shaft supports are provided upright at the left and right of the installation portion on the support base,

wherein the water turbine housing is rotatably supported between the pair of left and right shaft supports through a horizontal hanging shaft provided on the upper part of the suspension support body, and

wherein the length from the installation portion to the downstream side is a length that the water turbine housing is rotatable around the horizontal hanging shaft as a center and can be pulled up onto the support base.

2. The hydroelectric power generation device according to claim 1,

wherein a U-shaped bearing groove is formed in the center part in the front and rear of an upper surface of the shaft supports respectively, and

wherein the horizontal hanging shaft provided on an upper edge part of the suspension support body is configured to be inserted into the U-shaped bearing groove from the top and supported therein.

3. The hydroelectric power generation device according to claim 1,

wherein on the upper surface of the suspension support body, a hook for hanging the water turbine housing is formed.

4. The hydroelectric power generation device according to claim 1,

wherein on the upper portion of the suspension support body, a lever rod for swinging the water turbine housing around the horizontal hanging shaft is detachably mounted.