Vertical shaft tidal current generating set

Abstract

The invention provides a vertical shaft tidal current generating set. The vertical shaft tidal current generating set comprises three modules, namely an upper layer platform part, a supporting frame part and an impeller part, wherein the upper layer platform part mainly comprises a generator, a gear box, a horizontal connecting shaft, a supporting platform, a supporting column and a vertical connecting shaft; the supporting frame part is formed by connecting an upper frame plate, a lower frame plate, a left frame plate and a right frame plate; and the impeller part comprises a main shaft, a spoke sleeve, a spoke, a spoke shaft, a blade, a blade shaft, a wheel disk and an adaptive attack angle control device. The invention provides the high-performance vertical shaft tidal current generating set, which has high starting and generating performances and high structural strength, can be developed towards large-scale direction, can be used below a floating platform and above a pile base and a tension leg, is convenient to produce, manufacture, install and debug, and is suitable for engineering application.

Description

technical field [0001] The invention relates to a vertical axis tidal current power generation device, which belongs to the field of hydraulic machinery and hydraulic generators. Background technique [0002] Tidal energy refers to the kinetic energy of seawater flow, mainly the relatively stable flow in submarine channels and straits and the regular seawater flow caused by tides. As a renewable energy source, tidal current energy is rich in reserves and widely distributed, and has excellent development prospects and value. my country's exploitable tidal current energy resources rank first in the world, and how to utilize tidal current energy resources has important practical significance. [0003] The main way to utilize tidal current energy is to generate electricity. Its working principle is similar to that of wind power generation and conventional hydropower generation, that is, the kinetic energy of seawater is converted into electrical energy through an energy convers...

AI Technical Summary

Problems solved by technology

Harbin Engineering University has carried out tidal current power generation research for many years, and concluded that the traditional vertical axis tidal current power generation device has the following problems in power generation: (1) When the main shaft of the impeller rotates with a single support, the main shaft has a large bending moment load, and the structural strength of the main shaft is relatively high. high

When the main shaft of the impeller rotates with double supports, due to the deformation of the device, the friction of the main shaft increases, which affects the start-up and power generation performance of the tidal current power generation device; (2) the self-starting performance and power generation performance of the impeller of the fixed-blade vertical-axis tidal current power generation device are relatively poor; (3 ) The vertical self-weight load and horizontal impact load of the impeller and main shaft of the large-scale vertical axis tidal current power generation device are relatively large, and the structural strength requirements of the impeller and main shaft are relatively high, and the device is not suitable for large-scale development; (4) The application platform and use environment are single , not conducive to large-scale production and application

Images