Combined power generation system for high-efficiency low-temperature and low-pressure steam waste heat utilization and control method thereof

A low-temperature, low-pressure, steam waste heat technology, applied in steam applications, steam engine devices, machines/engines, etc., can solve the problems that low-temperature waste heat steam energy cannot be fully recovered and utilized, and steam turbines cannot achieve high-efficiency operation, so as to reduce design difficulty and ensure The effect of improving service life and utilization rate

Pending Publication Date: 2021-12-03
CHONGQING JIANGJIN SHIPBUILDING IND
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

This patented technology uses two different systems for generating high temperature or lower pressures vapors from waste heat sources like flue gases that are used during power generation. These vents can be converted into useful forms such as electricity (power) with better performance compared to traditional methods due to their ability to recover thermal energy when condensing them at temperatures below 100 degrees Celsius (260°F). By combining these techniques together, this new approach allows for more effective use of resources while improving overall functionality over existing technologies.

Problems solved by technology

The problem addressed in this patented text relates to efficiently recovering high temperature thermal power from lower quality sources like these without affecting their properties such as humidity levels, pressure level, etc., which can lead to environmental concerns during operations.

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
  • Combined power generation system for high-efficiency low-temperature and low-pressure steam waste heat utilization and control method thereof
  • Combined power generation system for high-efficiency low-temperature and low-pressure steam waste heat utilization and control method thereof
  • Combined power generation system for high-efficiency low-temperature and low-pressure steam waste heat utilization and control method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] see Figure 5 , the present invention provides a high-efficiency low-temperature and low-pressure steam waste heat utilization combined power generation system, including:

[0026] Steam turbine 1, evaporator 2, organic working medium turbine 3, double extension shaft generator 4 and working medium circulation mechanism 5, the evaporator 2 is connected to the steam turbine 1, the organic working medium turbine 3 is connected to the The evaporator 2 is connected, the two ends of the double extension shaft generator 4 are respectively connected with the steam turbine 1 and the organic working medium turbine 3, and the working medium circulation mechanism 5 is arranged on the organic working medium turbine 3 and between the evaporator 2.

[0027] In this embodiment, the waste heat steam drives the steam turbine 1 to rotate; by using the waste heat steam from the tail of the steam turbine 1 to exchange heat with the liquid organic working medium, the working medium becomes a

Embodiment 2

[0031] see Figure 6 , the present invention provides a high-efficiency low-temperature and low-pressure steam waste heat utilization combined power generation system, including:

[0032] Steam turbine 1, evaporator 2, organic working medium turbine 3, double extension shaft generator 4 and working medium circulation mechanism 5, the evaporator 2 is connected to the steam turbine 1, the organic working medium turbine 3 is connected to the The evaporator 2 is connected, the two ends of the double extension shaft generator 4 are respectively connected with the steam turbine 1 and the organic working medium turbine 3, and the working medium circulation mechanism 5 is arranged on the organic working medium turbine 3 and between the evaporator 2.

[0033] The double extension shaft generator 4 includes a motor body 41, a steam reducer 42 and a working medium reducer 43, and the two ends of the motor body 41 are respectively connected with the steam reducer and the working medium redu

Embodiment 3

[0047] see Figure 7 , the present invention provides a high-efficiency low-temperature and low-pressure steam waste heat utilization combined power generation system, including:

[0048] Steam turbine 1, evaporator 2, organic working medium turbine 3, double extension shaft generator 4 and working medium circulation mechanism 5, the evaporator 2 is connected to the steam turbine 1, the organic working medium turbine 3 is connected to the The evaporator 2 is connected, the two ends of the double extension shaft generator 4 are respectively connected with the steam turbine 1 and the organic working medium turbine 3, and the working medium circulation mechanism 5 is arranged on the organic working medium turbine 3 and between the evaporator 2.

[0049] The double extension shaft generator 4 includes a motor body 41, a steam reducer 42, a working medium reducer 43 and an overrunning clutch 44, and the two ends of the motor body 41 are connected to the steam reducer and the working

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 the field of steam engine devices, in particular to a combined power generation system for high-efficiency low-temperature and low-pressure steam waste heat utilization and a control method thereof. The control method comprises the steps that: waste heat steam is introduced into a steam turbine to drive a double-extension-shaft generator to generate electricity; the steam discharged by the steam turbine enters an evaporator to heat a working medium; the working medium expands to drive the double-extension-shaft generator to generate electricity; the working medium circularly flows back to the evaporator after being cooled; the rotating speed of the double-extension-shaft generator is increased to a rated rotating speed; a grid-connected cabinet of the double-extension-shaft generator is closed; and the output power of the double-extension-shaft generator is increased to the rated power for operation. Therefore, energy in the waste heat can be used in a grading manner, and the working efficiency is improved.

Description

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

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
Owner CHONGQING JIANGJIN SHIPBUILDING IND
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