Adjusting structure for rotating partition plate of steam turbine

Abstract

The invention provides an adjusting structure for rotating partition plate of steam turbine. The adjusting structure comprises at least one set of adjusting structures, the adjusting structure comprises an oil motor support and a fixing sleeve, wherein the oil motor support arranged outside a cylinder and the fixing sleeve arranged in the cylinder, a cross rod is arranged in the oil motor supportin a penetrating mode, one end of the cross rod is connected with the connecting end of the oil motor, the other end is a driving end penetrating into the cylinder, a rotating shaft is arranged in thefixing sleeve, a first rocker arm and a second rocker arm are vertically connected to the two ends of the rotating shaft respectively, the first rocker arm is hinged to one end of a first connectingrod, the other end of the first connecting rod is hinged to the driving end of the cross rod, the second rocker arm is hinged to one end of a second connecting rod, and the other end of the second connecting rod is hinged to the edge of a rotating ring. According to the invention, only the cross rod is partially exposed outside the cylinder to be connected with the oil motor, the other parts are arranged in the cylinder, the interference with external components of a cylinder is avoided, so that the use of the rotary partition plate can be effectively realized.

Description

technical field [0001] The invention relates to the technical field of steam turbine regulating air extraction, in particular to a steam turbine rotating baffle regulating structure. Background technique [0002] The rotating baffle of the steam turbine is a common means to adjust steam extraction. The driving force required for the action of the rotating baffle comes from the oil motor, and the driving force of the oil motor to the rotating ring on the rotating baffle needs to be transmitted by the adjustment lever. [0003] as attached figure 1 As shown, the steam turbine includes a cylinder 1. A rotating partition is arranged in the cylinder 1. A rotating ring 2 is arranged on the rotating partition. When the rotating ring 2 rotates, the area of ​​the steam passage can be adjusted to realize the function of flow regulation. A common rotary diaphragm adjustment mechanism includes an external rocker 101 , a bearing housing 102 , a fulcrum shaft 103 , an internal rocker 104...

AI Technical Summary

Problems solved by technology

If the position of adjusting the steam extraction is close to the exhaust port of the cylinder, the positions of the external rocker 101, the support shell 102, and the fulcrum shaft 103 are very easy to interfere with the huge exhaust port, which is basically impossible to achieve by conventional methods. For the steam extraction close to the steam exhaust port, it is necessary to propose a new adjustment steam extraction structure to avoid interference

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