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

A dual-pressure expansion organic Rankine cycle recovery system for low-temperature waste heat power generation

A circulatory system, low-temperature waste heat technology, applied in the energy and environmental fields, to reduce the liquid transfer pump, simplify the system, and eliminate cavitation.

Active Publication Date: 2020-05-15
KUNMING UNIV OF SCI & TECH
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Another part of the saturated liquid organic working fluid enters the flasher after throttling and decompression

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
  • A dual-pressure expansion organic Rankine cycle recovery system for low-temperature waste heat power generation
  • A dual-pressure expansion organic Rankine cycle recovery system for low-temperature waste heat power generation
  • A dual-pressure expansion organic Rankine cycle recovery system for low-temperature waste heat power generation

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] like figure 1 As shown, the dual-pressure expansion organic rankine cycle recovery medium and low temperature waste heat power generation system, the device includes a low-pressure organic rankine cycle system, a high-pressure organic rankine cycle system and connected pipelines and accessories; a low-pressure organic rankine cycle system , High-pressure organic Rankine cycle system includes ORC waste heat boiler 1, ORC waste heat boiler 1 is divided into preheating section, evaporation section and superheating section;

[0022] The low-pressure organic Rankine cycle system includes an ORC waste heat boiler 1 preheating section, a pressure reducing valve 4, a flash evaporator 5, a screw expander 6, a generator 3, a condenser 7, a condensation pump 8, a jet compressor 9 and connections Composed of pipeline accessories; the high-pressure organic Rankine cycle system includes ORC waste heat boiler 1 evaporation section and superheating section, centripetal turbine 2, gener...

Embodiment 2

[0028] like figure 1 As shown, the dual-pressure expansion organic rankine cycle recovery medium and low temperature waste heat power generation system, the device includes a low-pressure organic rankine cycle system, a high-pressure organic rankine cycle system and connected pipelines and accessories; a low-pressure organic rankine cycle system , High-pressure organic Rankine cycle system includes ORC waste heat boiler 1, ORC waste heat boiler 1 is divided into preheating section, evaporation section and superheating section;

[0029] The low-pressure organic Rankine cycle system includes an ORC waste heat boiler 1 preheating section, a pressure reducing valve 4, a flash evaporator 5, a screw expander 6, a generator 3, a condenser 7, a condensation pump 8, a jet compressor 9 and connections Composed of pipeline accessories; the high-pressure organic Rankine cycle system includes ORC waste heat boiler 1 evaporation section and superheating section, centripetal turbine 2, gener...

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 dual-pressure expansion organic rankine cycle (ORC) mid-low-temperature waste heat recovery power generation system and belongs to the technical field of energy and environments. According to the system, mid-low-temperature waste heat flue gas with the temperature being 200-350 DEG C is utilized as the driving heat source, organic working medium feeding liquid is preheated to be in a saturated liquid state in an ORC waste heat boiler preheating segment, then part of a saturated liquid organic working medium enters an evaporation segment and an superheating segment ofa waste heat boiler, generated saturated (or superheated) steam enters a radial-inward-flow turbine, and a high-pressure stage ORC expansion work doing process is completed; and the other part of thesaturated liquid organic working medium enters a flash vessel after being subjected to throttling and pressure reducing, saturated steam separated from the flash vessel enters a low-pressure stage screw expander, and a low-pressure stage ORC expansion work doing process is completed. An ejection compressor recovers the liquid-phase working medium separated out of the flash vessel, utilization ofliquid conveying pumps is reduced, the system is simplified, and the possibility of pump cavitation is eliminated.

Description

technical field [0001] The invention relates to a dual-pressure expansion organic Rankine cycle recycling medium and low temperature waste heat power generation system, which belongs to the technical field of energy and environment. Background technique [0002] my country has a large number of waste heat resources, especially various flue gas waste heat resources, which have the characteristics of high recovery feasibility and good economy. In the production process of many high-energy consumption industries such as steel, cement, caustic soda, synthetic ammonia, glass, sulfuric acid, and calcium carbide, a lot of medium and low temperature waste heat has not been recycled, and the development and utilization potential of medium and low temperature flue gas waste heat alone exceeds 100 million tons of standard coal. At present, many theoretical studies and engineering practices have proved that the Organic Rankine Cycle (ORC) is an important technology for efficiently reco...

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): F01K27/02F01K11/02F01K7/02
CPCF01K7/02F01K11/02F01K27/02
Inventor 王辉涛黄靖伦王建军朱道飞王华韩金蓉赵玲玲王维蔚
Owner KUNMING UNIV OF SCI & TECH
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