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

Three-dimensional internal and external finned tube integrated air preheater and processing method thereof

An air preheater, three-dimensional technology, applied in combustion methods, lighting and heating equipment, indirect carbon dioxide emission reduction, etc., can solve the problems of large space occupation, acid corrosion, large floor area, etc., to save equipment space, reduce The effect of small equipment volume and reduced equipment investment

Inactive Publication Date: 2015-03-18
CHONGQING SHANGSHUN HEAT TRANSFER EQUIP
View PDF8 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The air preheater and GGH used in it have the following problems: the heat transfer coefficient is low, the heat exchange surface in the low temperature section has acid corrosion, scaling and ash plugging, and occupies a large area and takes up a lot of space

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
  • Three-dimensional internal and external finned tube integrated air preheater and processing method thereof
  • Three-dimensional internal and external finned tube integrated air preheater and processing method thereof
  • Three-dimensional internal and external finned tube integrated air preheater and processing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0018] Example: such as figure 1 As shown, the integrated air preheater, its main body is a three-dimensional box, the upper end of the box is provided with a flue inlet, the lower end is provided with a flue outlet, and an upper tube plate closed box is arranged in the box near the smoke inlet. The box body of the smoke outlet is provided with a lower tube plate closed box body, which isolates the inside of the box body from the outlet and inlet of the flue. A plurality of installation holes are arranged on the tube plate, and a three-dimensional internal and external ribbed tube is inserted into each installation hole. The three-dimensional inner and outer ribbed tubes are expanded and welded on the tube plates at the upper and lower ends, and fixed in the box body, and the nozzles of the three-dimensional inner and outer ribbed tubes are located in the flue mouth. There is an air inlet on one side of the box, which is located on the side plate of the box inside the tube pl...

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 discloses a three-dimensional internal and external finned tube integrated air preheater and a smoke processing method thereof. The three-dimensional internal and external finned tube integrated air preheater comprises a vertical case, the upper end and the lower end of the case are provided with flue ports including an flue inlet and a flue outlet respectively; the inside of the case close to the flue ports is provided with tube plates to close the case and separate the inside and the flue ports; a plurality of three-dimensional internal and external finned tubes are welded to the tube plates at the upper end and the lower end in an expanded mode and fixed inside the case; the orifices of the three-dimensional internal and external finned tubes are arranged inside the flue ports; one side of the case is provided with an air inlet, and the other side of the case is provided with an air outlet. The three-dimensional internal and external finned tube integrated air preheater integrates an air preheater and a GGH (gas-gas heater) into a whole, thereby reducing equipment investment, saving equipment space, achieving integration and solving the problems of low heat exchange efficiency, heat transfer surface acid corrosion, scale formation, clogging and the like of existing devices. Most of preheated high-temperature air is applied to combustion of a boiler, the other part of the high-temperature air is mixed with purified flue gas flowing out of a desulfurizing tower, and the temperature of the mixed purified flue gas can be up to environment protecting emission standard.

Description

technical field [0001] The invention relates to an air preheater used for boiler heat exchange in a power plant, in particular to an air preheater integrating three-dimensional inner and outer rib tubes. Background technique [0002] Power plant boiler flue gas process, denitrification → air preheater → electric bag filter → booster fan → gas-gas heat exchanger (GGH for short) → desulfurization tower → GGH → chimney, the air preheater in the process generally adopts a spiral groove Tube air preheater, bare tube air preheater, hot pipe air preheater or rotary air preheater. The air preheater raises the air temperature from 20°C to 240~300°C, and the flue gas temperature drops from 290~350°C to 140~150°C. In the flue gas process, the GGH heat exchange equipment cools the original flue gas and enters the desulfurization tower for desulfurization. The desulfurized flue gas is called clean flue gas, and then the obtained clean flue gas is sent to the GGH for heating. The air pr...

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): F23L15/00
CPCY02E20/34
Inventor 王键廖光亚高川云王智勇
Owner CHONGQING SHANGSHUN HEAT TRANSFER EQUIP
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