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Flow-cutting channel type water turbine

A channel-type water turbine technology, applied in the field of water turbines, can solve the problems of less series of impact water turbines and low efficiency, and achieve the effect of high cost performance, high efficiency, and easy production and processing

Active Publication Date: 2013-06-19
宜昌光源电业有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are few series of impact turbines and their efficiency is relatively low, and they are mainly used in high water head and low flow conditions

Method used

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  • Flow-cutting channel type water turbine
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Such as figure 1 As shown, this embodiment is a single tangential channel turbine, including a casing 1 and a main shaft 8 at the center, a runner 2 located outside the main shaft and rigidly connected to the main shaft, the runner 2 is a cylinder, and the runner 2 Three gate-shaped blades 3 are evenly arranged on the upper part, and a blade chamber 4 for accommodating the blades is also provided on the runner. One end of the blade chamber 4 is provided with a limit part for limiting the expansion angle of the blades. The blade chamber is used for accommodating and restricting the blades. Expanded angle, the casing 1 is also provided with a partition 5 for guiding the blades to enter the blade chamber; the partition 5 blocks the right water flow channel of the two water flow channels in the turbine casing, leaving the left The water flow channel (or the left water flow channel is blocked, the right water flow channel is reserved). The water flow channel is provided with a...

Embodiment 2

[0032] Such as figure 2 As shown, this embodiment is a double tangential channel hydraulic turbine, which includes a casing 1 and a main shaft 8 in the center. The runner 2 is located outside the main shaft and is rigidly connected to the main shaft. The runner 2 is evenly provided with four For the unfolded or retracted blades 3, the runner is also provided with a blade chamber 4 for accommodating the blades when the blades are folded. One end of the blade chamber 4 is provided with a limit part for limiting the unfolding angle of the blades. There are also two inside the casing 1. The partition body 5 used to guide the blades to gather into the blade chamber; the partition body divides the annular water flow channel into two left and right tangential flow channels evenly. The upper end of the left channel is set as a high-pressure water inlet and the lower end is set as a low-pressure water outlet. , The direction of water flow in the left channel is counterclockwise; the lo...

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Abstract

A flow-cutting channel type water turbine comprises a machine shell, a main shaft, a turning wheel, and a separation body. At least three pairs of vanes which are capable of being folded and unfolded are evenly arranged on the turning wheel. A water channel inside the water turbine is divided into one channel or more channels by the separation body. The water channel is perpendicular to a rotary shaft. A water inlet of the water channel is connected with a high-pressure water conduit. A water outlet of the water channel is connected with an exhaust water pipe. A vane chamber is arranged on each vane. A limiting portion capable of being unfolded by a certain degree is arranged on the vane chamber. The direction of high-pressure water flowing into the water channel is perpendicular to the direction of the front side of the vane when the vane is unfolded. Speed and direction of the water are the same as those of each vane and the turning wheel is pushed to rotate. Water power is efficiently converted into mechanical power by the vanes. A slope sliding block is arranged on one lateral side, with low water pressure, of the separation body, wherein the slope sliding block is capable of guiding the vanes to be folded and then enabling the vanes to enter the vane chambers of the vanes. The vanes are automatically unfolded through a spring at the position of an inlet of high-pressure water after passing through the separation body in a rotating mode. The flow-cutting channel type water turbine has the advantages of being high in efficiency, simple in structure, easy to machine and manufacture, and easy to popularize.

Description

Technical field [0001] The invention belongs to the field of hydraulic turbines, and relates to a new type of hydraulic turbine, specifically a cut-flow channel type hydraulic turbine, which can efficiently convert water energy into mechanical energy in a small hydropower station. Background technique [0002] Water turbines are divided into two categories: counterattack and impact. The counterattack turbine converts the potential and kinetic energy of the water flow into the rotating mechanical energy of the turbine. The runner is the core component for energy conversion and also the key component that determines the performance of the turbine. When the water flows through the runner blades, the size and direction of the water flow velocity change. The water flow reacts to each blade with potential and kinetic energy, thereby generating a rotating torque to make the runner rotate. According to the water flow direction of the runner area relative to the main axis direction, the ...

Claims

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Application Information

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IPC IPC(8): F03B3/00F03B3/14
CPCY02E10/20Y02P70/50
Inventor 黄悦华汪德华张立仁王归新罗朝祥乔娟汪璞
Owner 宜昌光源电业有限责任公司
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