Unlock instant, AI-driven research and patent intelligence for your innovation.

Installing method of axial flow hydroturbine with movable blade

An installation method and hydraulic turbine technology, which can be applied to hoisting devices, mechanical equipment, hydroelectric power generation, etc., can solve the problems of wire rope breakage in the installation hole of the support cover, safety risks of installation work, and broken strands, etc.

Active Publication Date: 2019-03-19
CHN ENERGY DADU RIVER REPAIR & INSTALLATION CO LTD
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] However, during the actual installation process, the steel wire rope in the installation hole of the support cover was partially broken and the strands were broken, which brought great safety risks to the installation work. During the installation process of the 4 units, two of the above-mentioned phenomena occurred, and all of them appeared in the support In the process of lowering the cover, one has to doubt the rationality of the installation process

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Installing method of axial flow hydroturbine with movable blade
  • Installing method of axial flow hydroturbine with movable blade

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0040] Take the installation of water turbines of Tongjiezi Hydropower Station as an example below to describe the present invention in detail.

[0041] The hydraulic turbine of Tongjiezi Hydropower Station is a vertical axial flow propeller structure with a runner diameter of 8.5m. The "three-body crane" hoisting of the turbine uses a special spreader to transfer the runner, support cover, and the main shaft of the turbine into the machine pit as a whole, and the total lifting weight is about 490.2t. See Table 1 for the main components and total quantity of the overall hoisting of the turbine.

[0042] Table 1 Weight list of various components for hoisting of the turbine

[0043] serial number

Part Name

weight

Remark

1

runner

305t

2

support cover

95.5t

3

middle vertebra

25.2t

4

big axis

49.5t

5

lifting tool

15t

total

The overall lifting weight is

490.2t

...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses an installing method of an axial flow hydroturbine with movable blade. A three-body coupled lifting method of an axial flow movable-blade type runner, a supporting cove and a hydroturbine main shaft is adopted. The installing method is characterized in that after an original technology of which the supporting cover is lowered after main shaft bolts and nuts are assembled ischanged into the installing method that the main shaft bolts and nuts are assembled after the supporting cover is lowered, the lifting and lowering heights of the supporting cover and the hanging time of the supporting cover on a main shaft are greatly reduced, steel wire ropes are prevented from being damaged, and distraction of installing personnel due to fatigue is prevented; and the securityrisk is effectively reduced, the installing working efficiency is improved, and the installing period of time is shortened.

Description

technical field [0001] The invention belongs to the technical field of hydropower, and in particular relates to an installation method of an axial flow paddle water turbine. Background technique [0002] Jinsha River, Dadu River and other rivers in southwest Sichuan are rich in hydropower resources, and many hydropower stations have been built, such as Dadu River Tongjiezi Hydropower Station, which is equipped with several axial-flow propeller turbine generator sets, which are manufactured by Dongfang Electric Machinery Factory. The installation process of the water turbine is also provided by the factory. The process is a "three-in-one hoisting" method of the runner, the support cover, and the main shaft. The steps are: [0003] 1. Install the large shaft of the turbine vertically on the designated foundation plate in the installation room, and use anchor bolts to position it together to prevent dumping; [0004] 2. Lift the support cover, insert it into the main shaft of ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): B66C13/08B66C1/12B66D1/04F03B11/00
CPCB66C1/12B66C13/08B66D1/04F03B11/00Y02E10/20
Inventor 杜杰向虹光韩涛强海军
Owner CHN ENERGY DADU RIVER REPAIR & INSTALLATION CO LTD