High-pressure turbine active clearance control valve
A high-pressure turbine and power control technology, which is applied to engine components, machines/engines, and leakage prevention, can solve problems such as the inability to effectively adjust the turbine gap, improve work efficiency and reliability, eliminate structural layout, and reduce design difficulty. Effect
Active Publication Date: 2019-03-12
CHANGCHUN AVIATION HYDRAULIC CONTROL
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Problems solved by technology
[0005] The purpose of the present invention is to propose a high-pressure turbine active clearance control valve to solve the problem that the existing technology cannot effectively adjust the clearance of the turbine
Method used
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Embodiment Construction
[0037] Embodiments of the present invention will be further described below in conjunction with the accompanying drawings.
[0038] See attached Figure 1-2 , the high-pressure turbine active gap control valve of the present invention includes:
[0039] Gas transmission pipeline 1, the gas transmission pipeline 1 includes air discharge port 101, fifth-stage air inlet 102 and ninth-stage air inlet 103; air release port 101, fifth-stage air inlet 102, and ninth-stage air inlet 103 should meet Structural layout, flow rate, and installation requirements, here, when the air discharge port 101 is horizontal, the axes of the five-stage air intake port 102 and the air discharge port 101 are on the same plane, and the air intake direction of the five-stage air intake port 102 is the same as the discharge port 101. The gas direction forms an angle of 85°, and the nine-stage air inlet 103 and the air discharge port 101 axes are on the same plane, and the air intake direction of the nine...
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The invention relates to a high-pressure turbine active clearance control valve, belongs to the technical field of high-pressure turbine clearance control, and aims to solve the problem that a turbineclearance cannot be effectively adjusted in the prior art. The high-pressure turbine active clearance control valve comprises an air transporting pipeline, a five-level valve unit, a nine-level valveunit and a power control unit, wherein the air transporting pipeline comprises an air relief port, a five-level air inlet and a nine-level air inlet; the five-level valve unit is arranged at the position, close to the five-level air inlet, on the air transporting pipeline, and controls the five-level air inlet to open and close; the nine-level valve unit is arranged at the position, close to thenine-level air inlet, on the air transporting pipeline, and controls the nine-level air inlet to open and close; and the power control unit controls the five-level valve unit and the nine-level valveunit to act. According to the high-pressure turbine active clearance control valve provided by the invention, fuel oil controls on and off of high-temperature gas, so that the product sealing design difficulty at high temperature is effectively reduced. The hydraulic force is converted into the mechanical force for driving the valve to open and close. Through the structure forms of an inlet channel, an outlet channel and a valve channel, the appropriate flow is ensured, and the valve can be matched with an engine.
Description
technical field [0001] The invention belongs to the technical field of high-pressure turbine clearance control, and in particular relates to a high-pressure turbine active clearance control valve. Background technique [0002] The engine turbine clearance refers to the distance between the tip of the engine turbine blade and the adjacent outer ring block. Due to the perennial operation of the engine, the gap value between the two will change. In the case of rapid acceleration and deceleration of the engine Below, the change of the blade tip clearance is relatively large. [0003] At present, the high-pressure turbine clearance of aero-engines has a great influence on engine efficiency, that is, economy and reliability. If the gap of the high-pressure turbine is too large, the air leakage loss will increase, the engine efficiency will decrease, and the fuel supply will increase, which will cause the engine to heat up, which will have an adverse effect on the life of the engi...
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Patent Timeline
Login to View More IPC IPC(8): F01D11/24
CPCF01D11/24
Inventor 王向飞满春雷潘利江郑莹陆露
Owner CHANGCHUN AVIATION HYDRAULIC CONTROL