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Control device for main steam valve of horizontal version oil control type steam turbine

A control device and steam turbine technology, applied in the direction of valve device, valve operation/release device, valve details, etc., can solve problems such as danger, high labor intensity of operators, time-consuming and labor-intensive problems, so as to prevent accidents and reduce labor intensity Effect

Active Publication Date: 2016-07-13
JINZHOU XINJINHUA MACHINERY MFG
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

At present, the main steam valve control device of a steam turbine is mainly composed of a valve body, a control rod installed on the valve body, and a valve core. It is time-consuming and labor-intensive to close, and the labor intensity of the operator is high, especially when the steam turbine fails, because the operator cannot quickly close the main steam valve of the steam turbine, resulting in the risk of accidents

Method used

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  • Control device for main steam valve of horizontal version oil control type steam turbine

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Embodiment Construction

[0016] As shown in the figure, a horizontal oil-controlled steam turbine main steam valve control device includes an oil cylinder 1, an oil inlet 2 is provided at the left end of the side wall of the oil cylinder 1, and an oil return port 3 is provided at the right end of the side wall of the oil cylinder 1 , install the oil inlet assembly in the oil inlet 2 of the oil cylinder 1, the oil inlet assembly is composed of the oil inlet assembly body 4, the oil inlet assembly spool 5 inserted on the oil inlet assembly body 4 and connected to the oil inlet assembly The tension spring 6 is formed between the body 4 and the valve core 5 of the oil inlet nozzle assembly; a flexibility check valve 7 is installed on the side wall of the oil cylinder 1, and the oil inlet and the oil outlet of the flexibility check valve 7 are respectively located in the oil cylinder 1 The left and right ends of the side wall; the piston 8 is set in the oil cylinder 1, the control box 9 with the shaft hole ...

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Abstract

The invention discloses a control device for a main steam valve of a horizontal version oil control type steam turbine. According to the control device, time and effort are saved, labor intensity of operators is greatly reduced, and the operators can rapidly close the main steam valve of a steam turbine to avoid the occurrence of accidents and dangers when the steam turbine has a failure. The control device comprises an oil cylinder, wherein an oil inlet is formed in the left end of the side wall of the oil cylinder; an oil return port is formed in the right end of the side wall of the oil cylinder; a piston is arranged in the oil cylinder; a control box with a shaft hole is arranged on the left end face of the piston; a compression spring I is connected between the control box and the inner wall at the left end of the oil cylinder; a control rod inserted in the shaft hole of the control box is mounted at the left end of the oil cylinder through threads; a sliding sleeve is arranged in the shaft hole of the control box; a compression spring II is connected between the control rod and the sliding sleeve; an axial penetrating oil through hole I is formed in a part, corresponding to the shaft hole, on the piston; an oil through hole II is formed in the side wall of the sliding sleeve; an oil through hole III is formed in the side wall of the control box; an air valve stem mounted on the right end face of the piston penetrates through the right end of the oil cylinder.

Description

technical field [0001] The invention relates to a main steam valve of a steam turbine, in particular to a control device for a main steam valve of a horizontal oil-controlled steam turbine. Background technique [0002] With the continuous development of my country's chemical industry, oil refining and other industries, industrial steam turbines are widely used in industry as the control driving power of generators, water pumps, fans and compressors. At present, the main steam valve control device of a steam turbine is mainly composed of a valve body, a control rod installed on the valve body, and a valve core. It is time-consuming and labor-intensive to close, and the labor intensity of the operator is high, especially when the steam turbine fails, because the operator cannot quickly close the main steam valve of the steam turbine, resulting in the risk of accidents. Contents of the invention [0003] The present invention aims to solve the above technical problems, and ...

Claims

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Application Information

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IPC IPC(8): F16K31/60F16K31/122
CPCF16K31/122F16K31/60
Inventor 王志君闫甦
Owner JINZHOU XINJINHUA MACHINERY MFG
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