Pressure regulating valve of water turbine volute casing

A pressure regulating valve and water turbine technology, applied in mechanical equipment, hydroelectric power generation, engine components, etc., can solve the problems of multiple capital investment, long R&D cycle, etc., and achieve the effect of simple overall structure, large flow capacity, sensitive and stable action

Active Publication Date: 2014-01-29
TIANJIN RES INST OF ELECTRIC SCI
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The successful development of a new speed regulation-pressure regulation linkage system not only requires a lot of capital investment and a long R&D cycle, but also requires long-term technical accumulation and high-quality professionals, which makes most domestic manufacturers have no funds or ability to develop new systems

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
  • Pressure regulating valve of water turbine volute casing

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0016] The present invention will be further described in detail below in conjunction with the accompanying drawings and through specific embodiments. The following embodiments are only descriptive, not restrictive, and cannot limit the protection scope of the present invention.

[0017] A hydraulic turbine volute pressure regulating valve, installed at the water inlet of the hydraulic turbine volute, the central pipe 10 of the pressure regulating valve communicates with the volute (not shown in the figure), and the tail end of the central pipe is installed on the pressure regulating valve In the discharge channel 8.

[0018] A process installation hole 6 is formed on the discharge flow channel, which is used to install or repair the pressure regulating valve components in the outlet pool; a vent hole 7 is also formed on the discharge flow channel, so that the air can directly enter the discharge flow of the pressure regulating valve evenly inside the road.

[0019] A valve s...

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

No PUM Login to view more

Abstract

The invention relates to a pressure regulating valve of a water turbine volute casing. A valve bush is sleeved outside the tail end of a center pipe in a draining passage coaxially, two coaxial pull rods are fixedly mounted on the valve bush symmetrically and are particularly fixedly mounted on fixing seats fixedly mounted at lower ends of two sides of a fork mounted outside the draining passage, and the fork drives and guides the two pull rods to move horizontally so as to drive the valve bush to move on the center pipe coaxially. The pressure regulating valve in a mechanical combined full-hydraulic control mode realizes water feeding horizontally and water discharging horizontally, is high in throughput capacity and low in operating force, is accurate in movement and safe and reliable due to the pressure differential hydraulic-control mean, and is capable of running with a water turbine speed regulating system better to meet requirements for guaranteeing regulation of hydropower stations.

Description

technical field [0001] The invention belongs to the field of valves, and relates to a spiral shell system of a hydropower station, in particular to a pressure regulating valve for a hydraulic turbine spiral shell. Background technique [0002] my country is rich in water conservancy resources, and in the current situation, more high-head and long-diversion pipe power plants are developed, and high-head or long-pressure diversion system power plants will cause pipeline water pressure and unit speed to increase during load shedding operation. If the speed regulation-voltage regulation system of the power station is not adjusted well, it will directly affect the safe operation of the hydropower station and the power quality of the hydropower, and even cause the pipeline to rupture, leading to the tragedy of machine crash and death. Power stations usually set surge wells to limit the water pressure rise rate of the water diversion system. However, the civil construction investmen...

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
Patent Type & Authority Patents(China)
IPC IPC(8): F03B15/18
CPCY02E10/226Y02E10/20
Inventor 杨远生刘卫亚张振中张中亚许庆进
Owner TIANJIN RES INST OF ELECTRIC SCI
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