Tool for fixing opening of diaphragm type regulating valve

A regulating valve, diaphragm-type technology, applied in the direction of valve operation/release devices, valve devices, devices to prevent accidental or unauthorized action, etc., can solve contamination, oil spillage, affecting pump set bearing oil distribution and other issues to achieve the effect of ensuring safety

Inactive Publication Date: 2018-08-28
CNNC FUJIAN FUQING NUCLEAR POWER
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, during the operation of the main pump motor, it was found that the valve stem of the valve was too flexible. After the valve opening was adjusted, the valve opening changed due to the vibration of the pump body and the erosion of the valve medium, which in turn affected the lubricating oil distribution of the pump

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Tool for fixing opening of diaphragm type regulating valve

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0019] A tool for fixing the opening of a diaphragm regulating valve according to the present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0020] Such as figure 1 As shown, a tool for fixing the opening of a diaphragm control valve includes a rectangular fixing plate A3, two strip-shaped fixing plates B1, two U-shaped screw rods 4 and positioning nuts 2; The U-shaped screw rod 4 is made by bending according to the diameter of the oil pipe, and the U-shaped screw rod 4 is provided with threads, which are used together with the positioning nut 2;

[0021] When in use, two U-shaped screw rods 4 are respectively installed on the upper and lower sides of the diaphragm control valve 5, and one end of each U-shaped screw rod 4 is covered with two positioning nuts 2, and the U-shaped wire rods at the bottom of the valve handwheel 6 Install two fixing plates B1 on the rod 4; install the fixing plate A3 on...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

PropertyMeasurementUnit
Thicknessaaaaaaaaaa
Login to view more

Abstract

The invention relates to a tool for fixing opening of a diaphragm type regulating valve. The tool comprises a rectangular fixing plate A, two long-strip shaped fixing plates B, two U-shaped screw rodsand positioning nuts, wherein the U-shaped screw rods are formed through bending according to the diameter of an oil tube; threads are formed in the U-shaped screw rods and are matched with the positioning nuts; when the tool is used, the two U-shaped screw rods are mounted on the upper and lower sides of the diaphragm type regulating valve separately; two positioning nuts are arranged at one endof each of the U-shaped screw rods in a sleeving manner; the two fixing plates B are mounted on the U-shaped screw rod at the bottom of a valve handle; the fixing plate A is mounted on the U-shaped screw rod at the top of the valve handle; and the external part is fixed by the positioning nuts. With adoption of the tool, the flow rate of the oil inlet pipe of a main pump does not change or has abnormality, the opening is kept stable, and a pump unit stably operates for two reactor-year, so that safety of the main pump and a reactor is effectively ensured. The tool has reference significance for fixing a pressurized water reactor main pump lubricating oil valve.

Description

technical field [0001] The content of the invention belongs to the field of valve opening adjustment, and in particular relates to a tool for fixing the opening of a diaphragm-type regulating valve. Background technique [0002] Take the lubricating oil adjustment of the main pump of a nuclear power plant as an example. The nuclear main pump is regarded as the heart of the reactor, and its reliable operation has an obvious impact on the safety and economy of the nuclear power plant. Diaphragm valves are used for regulating valves in lubricating oil pipes of main pump motors. However, during the operation of the main pump motor, it was found that the valve stem of the valve was too flexible. After the valve opening was adjusted, the valve opening changed due to the vibration of the pump body and the erosion of the valve medium, which in turn affected the lubricating oil distribution of the pump unit bearings. Threats to the safe operation of equipment. During the operation ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): F16K35/06F16K31/60
CPCF16K35/06F16K31/60
Inventor 杨全超陈锦裕杜召瑞吴明文学林淞李宏田涛
Owner CNNC FUJIAN FUQING NUCLEAR POWER
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap