Supercharged water turbine set with multiple rotating wheels

A runner and water wheel technology, applied in the field of supercharged multi-runner water turbine units, can solve the problems of waste of resources, loss of power generation power, etc., and achieve the effects of increasing water head utilization, reducing head loss, and improving energy utilization

Inactive Publication Date: 2019-11-12
浙江富春江水电设备有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the efficiency of IEC standard turbines is based on the calculation of the input energy based on the upstream and downstream water levels of the river, so the elevation difference of each layer of runners leads to an addit

Method used

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  • Supercharged water turbine set with multiple rotating wheels
  • Supercharged water turbine set with multiple rotating wheels
  • Supercharged water turbine set with multiple rotating wheels

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Embodiment Construction

[0018] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0019] Such as figure 1 In the shown embodiment, a pressurized multi-runner water turbine unit includes a casing 9, a main shaft 7 and a drainage channel 1. The main shaft 7 is provided with at least two runners, and there are two runners in this embodiment. , including an upper runner 5 and a lower runner 13. The upper runner 5 and the lower runner 13 are fixed on the main shaft 7, and the main shaft 7 is provided with a bearing 6 positioned with the casing 9. The bearing adopts a fixed bearing bush or an adjustable block tile structure, and the position of the bearing can be arranged under the runner , can also be arranged above the runners, and can also be arranged between multiple runners. It is even possible to cancel the water turbine bearings and share the generator bearings. The location and quantity of the bearings are selected acco...

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Abstract

The invention discloses a supercharged water turbine set with multiple rotating wheels. The water turbine set comprises machine shells, a main shaft and a drainage channel, wherein at least two rotating wheels are arranged on the main shaft, the rotating wheels comprise at least one upper rotating wheel which is higher than the tail water level of the drainage channel and at least one lower rotating wheel which is lower than the tail water level of the drainage channel, an independent correspondingly machine shell and a water inlet pipe for supplying water to each rotating wheel are arranged outside each rotating wheel, the water inlet pipes are provided with a plurality of nozzles for jetting water flow to drive the rotating wheels and the main shaft to rotate towards the rotating wheels,the water turbine set further comprises air supplementing pipelines communicating with the interior of the machine shells, and the air supplementing pipelines are used for supplementing air to the rotating wheels so as to enable the rotating wheels to be positioned above the water surface. The invention aims to provide the supercharged water turbine set with the multiple rotating wheels which canensure that the rotary wheel can utilize water heads, reduce the efficiency loss and improve the power generation economic benefit.

Description

technical field [0001] The invention belongs to the field of water turbines, in particular to a pressurized multi-runner water turbine unit. Background technique [0002] The traditional Pelton turbine structure is limited by equipment manufacturing capacity and transportation conditions. It is difficult to achieve a big breakthrough in the capacity of a single unit. Today, the largest impact unit in the world has not been able to break through 450MW. In order to develop a large-capacity, high-efficiency impact-type unit to meet the needs of domestic hydropower development, a multi-runner impact turbine scheme has been proposed. For example, the Chinese patent CN109296491A, which was first applied for, discloses a multi-layer runner structure of a water turbine. , including the main shaft and the water inlet pipe, the vertically set main shaft is equipped with a runner, the downstream end of the water inlet pipe is provided with a ball valve, the downstream end of the ball ...

Claims

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Application Information

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IPC IPC(8): F03B3/12F03B3/18F03B11/00F03B13/00
CPCF03B3/121F03B3/18F03B11/00F03B13/00Y02E10/20
Inventor 张续钟熊建军何凯希任尚洁沈丹龚芹炬陈璨杨希华古彦辉杨柯马建峰
Owner 浙江富春江水电设备有限公司
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