Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Double-ring sealing oil system for generator of thermal power plant and starting and stopping control method of double-ring sealing oil system

A sealing oil and generator technology, which is applied in the direction of engine sealing, engine components, mechanical equipment, etc., can solve the problems that the start-up procedure cannot be continued, and the automatic start-up of the double-flow ring sealing oil system cannot be realized.

Active Publication Date: 2016-10-26
NORTH CHINA ELECTRICAL POWER RES INST +1
View PDF5 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing double-flow ring sealing oil system of thermal power plant generators cannot realize the automatic start of the double-flow ring sealing oil system under the full stop state; Stop; and when the start-up program of the double-flow ring sealing oil system runs to a certain step, if the step condition is not met, the start-up program cannot continue

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
  • Double-ring sealing oil system for generator of thermal power plant and starting and stopping control method of double-ring sealing oil system
  • Double-ring sealing oil system for generator of thermal power plant and starting and stopping control method of double-ring sealing oil system
  • Double-ring sealing oil system for generator of thermal power plant and starting and stopping control method of double-ring sealing oil system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0097] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0098] The embodiment of the present invention provides a double-flow ring sealing oil system for a generator in a thermal power plant. The double-flow ring means that two sealing rings are installed at both ends of the generator: a hydrogen-side sealing ring and an air-side sealing ring, and two corresponding sets of sealing rings are provided. Sealing oil, the sealing oil on the air side is used to isolate the atmosphere, the sealing oil on the hydrogen side ...

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 provides a double-ring sealing oil system and a starting and stopping control method thereof. The system comprises an air side sealing ring, an air side oil storage box, a first air side alternating-current sealing oil pump, a second air side alternating-current sealing oil pump, an air side oil supply mother tube electric door, an air side alternating-current sealing oil pump recycling pressure stabilizing valve, a direct-current sealing oil pump, a main oil hydrogen differential pressure regulating valve, a standby oil hydrogen differential pressure regulating valve, a first smoke exhaust fan, a second smoke exhaust fan, a first air side cooler, a second air side cooler, a first air side oil supply filter screen, a second air side oil supply filter screen, a main oil hydrogen differential pressure regulating valve bypass electric door, an air side direct-current sealing oil pump recycling pressure stabilizing valve, a hydrogen side sealing ring, a hydrogen side oil storage tank, an oil supply regulating valve, an oil drainage regulating valve, a first hydrogen side alternating-current sealing oil pump, a second hydrogen side alternating-current sealing oil pump, a hydrogen side alternating-current sealing oil pump recycling pressure stabilizing valve, a hydrogen side oil supply mother tube electric door, a first hydrogen side cooler, a second hydrogen side cooler, a first hydrogen side oil supply filter screen, a second hydrogen side oil supply filter screen and an air hydrogen side balance valve.

Description

technical field [0001] The invention relates to the sealing oil technology of a generator in a thermal power plant, in particular to a double flow ring sealing oil system of a generator in a thermal power plant and a start-stop control method thereof. Background technique [0002] The main function of the double-flow ring sealing oil system of the generator in a thermal power plant is to supply oil to the generator sealing shoe, and make the oil pressure higher than the hydrogen pressure in the generator by a certain value, so as to prevent the hydrogen in the generator from moving along the gap between the rotating shaft and the sealing shoe. Leakage to the outside, but also to prevent oil pressure is too high to cause a large amount of oil into the generator. In addition, the sealing oil supply also has the effect of lubricating and cooling the sealing pad. However, the existing dual-flow ring sealing oil system of thermal power plant generators cannot automatically start...

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 Applications(China)
IPC IPC(8): F16J15/40
CPCF16J15/40
Inventor 任彦何振宇李朋刘邦泉赵宁孙燕平庞春凤
Owner NORTH CHINA ELECTRICAL POWER RES INST
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com