Low resistance loss quick-closing valve and using method thereof

A quick-closing valve and low-resistance technology, applied in the field of steam turbines, can solve the problems of reduced efficiency of steam turbine-generator sets, large valve flow resistance loss coefficient, etc., and achieve the effect of avoiding throttling loss

Pending Publication Date: 2019-02-22
安徽新宁能源科技有限公司
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0002] In the process of realizing the present invention, the inventors have found that the prior art has at least the following problems: the main steam valve of the main steam pipeline of the steam turbine is a fast shut-off valve, and generally adopts a sectional gate structure, because its valve seat aperture is smaller than that of the pipeline. inner diameter, and the steam flow needs to turn around, so the flow resistance loss coefficient of the entire valve is relatively large, which leads to a decrease in the efficiency of the turbogenerator

Method used

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  • Low resistance loss quick-closing valve and using method thereof

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Embodiment Construction

[0025] In order to make the object, technical solution and advantages of the present invention clearer, the implementation manner of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0026] see figure 1 , a low resistance loss quick-closing valve with:

[0027] a valve body with an inlet and an outlet;

[0028] The disc, the first end of which is hinged inside the valve body, can open or close the channel between the inlet and outlet during the flipping process;

[0029] A connecting rod, the first end of which is hinged to the disc;

[0030] The slider is hinged with the second end of the connecting rod; a guide rail is arranged in the valve body, and the slider can slide in the guide rail;

[0031] The driving mechanism can drive the slider to slide.

[0032] It also includes a valve rod, which is connected with the slide block, and the driving mechanism can drive the valve rod to move.

[0033] The drive me...

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Abstract

The invention discloses a low resistance loss quick-closing valve and a using method thereof. The low resistance loss quick-closing valve is provided with a valve body, a valve clack, a connecting rod, a sliding block, a driving mechanism and a valve rod, wherein an inlet and an outlet are formed in the valve body; the first end of the valve clack is hinged in the valve body; during the overturning process, the valve clack can open or close a passage between the inlet and the outlet; the first end of the connecting rod is hinged to the valve clack; the sliding block is hinged to the second endof the connecting rod; a guide rail is arranged in the valve body; the sliding block can slide in the guide rail; the driving mechanism can drive the sliding block to slide; the valve rod is connected with the sliding block; and the driving mechanism can drive the valve rod to move, so that a stop valve is prevented from throttling loss caused by small pore diameter of a valve seat and from flowresistance loss caused by flowing turning

Description

technical field [0001] The invention belongs to the technical field of steam turbines, and in particular relates to a quick-closing valve with low resistance loss and its application method. Background technique [0002] In the process of realizing the present invention, the inventors have found that the prior art has at least the following problems: the main steam valve of the main steam pipeline of the steam turbine is a fast shut-off valve, and generally adopts a sectional gate structure, because its valve seat aperture is smaller than that of the pipeline. Inner diameter, and the steam flow needs to turn around, so the flow resistance loss coefficient of the entire valve is relatively large, resulting in a decrease in the efficiency of the turbogenerator. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a low-resistance loss quick-closing valve and its use method which can avoid the throttling loss caused by t...

Claims

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Application Information

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IPC IPC(8): F16K1/22F16K1/32F16K17/20
CPCF16K1/221F16K1/222F16K1/32F16K17/20
Inventor 宋国亮侯典亮
Owner 安徽新宁能源科技有限公司
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