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Servo executing mechanism for air inlet guide vane in gas turbine

A gas turbine and servo execution technology, which is applied in gas turbine devices, jet propulsion devices, machines/engines, etc., can solve problems such as insufficient sealing performance, and achieve the effect of ensuring sealing effect, simplifying the assembly dimension chain, and improving the accuracy of coaxiality.

Pending Publication Date: 2019-04-09
SHANGHAI ZHIDAO HYDRAULIC CONTROL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] 2) The sealing method of the piston ring and the cylinder block is hard seal, and its sealing performance is insufficient

Method used

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  • Servo executing mechanism for air inlet guide vane in gas turbine
  • Servo executing mechanism for air inlet guide vane in gas turbine
  • Servo executing mechanism for air inlet guide vane in gas turbine

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Embodiment Construction

[0030] In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the present invention will be further described below in conjunction with specific embodiments.

[0031] see Figure 5 The servo actuator of the intake guide vane in a gas turbine according to the present invention includes an oil cylinder assembly A,

[0032] The oil cylinder assembly A has an oil cylinder body (1), and the oil cylinder body (1) has a front end cover part (11) and an oil cylinder barrel part (12), and the front end cover part (11) and the oil cylinder barrel part (12) pass through The one-piece structure is connected to form an oil cylinder body (1); the rear end of the oil cylinder body (1) is an open structure, and an oil cylinder rear cover (2) is installed at the opening structure; the oil cylinder body (1) There is a set of oil inlet (7) and oil outlet (8) at the front and rear ends respectively, and the oil inlet (7) a...

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Abstract

The invention discloses a servo executing mechanism for an air inlet guide vane in a gas turbine. An oil cylinder assembly is included and provided with an oil cylinder body. The oil cylinder body isprovided with a front end cover part and an oil cylinder barrel part which are connected through an integrated structure. The rear end of the oil cylinder body is of an opening structure, and an oil cylinder rear cover is arranged at the position of the opening structure. The front end and the rear end of the oil cylinder body are provided with an oil inlet and an oil outlet correspondingly, and the oil inlet and the oil outlet communicate with the interior of the oil cylinder barrel part. The oil cylinder barrel part is a cavity with a penetration structure, a body of a piston rod is locatedin the oil cylinder barrel part of the oil cylinder body, and the two ends of the piston rod penetrate out of the front end cover part and the oil cylinder rear cover of the oil cylinder body correspondingly. The connecting end of the piston rod and the front end cover part is provided with a guiding sleeve, the body of the piston rod is sleeved with a piston, the contact face of the piston and the inner wall of the oil cylinder barrel part is provided with a seal groove, and the seal groove is internally provided with soft seal materials.

Description

technical field [0001] The invention relates to the field of gas turbines, in particular to a servo actuator for an inlet guide vane in a gas turbine. Background technique [0002] see figure 1 and figure 2 , the intake guide vane (IGV) system is used to regulate the air intake flow during the start-up process of the gas turbine. The intake guide vane (IGV) is installed in the front intake chamber of the first stage moving blade of the axial flow compressor. The intake guide vane mechanism includes an intake adjustable guide vane, a connecting rod, a pull ring, a pull rod and a servo actuator. The axial movement of the servo is converted into rotational movement of the pull ring. The angle of the IGV changes with the rotation of the pull ring of the actuator through the roller mechanism. During the operation of the unit, the displacement sensor detects the angle of the IGV, and the actuator is automatically controlled by the gas turbine control system. [0003] At pre...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F15B15/14F15B15/28F15B13/04F15B21/041F02C7/057
CPCF02C7/057F15B13/04F15B15/14F15B15/1428F15B15/1438F15B15/1452F15B15/149F15B15/2815F15B21/041
Inventor 宣廷新刘宗清潘安田军
Owner SHANGHAI ZHIDAO HYDRAULIC CONTROL TECH