Fume-fume hot pipe heater exchanger for fume desulphurization in heat-engine plant

A technology for heat pipe heat exchangers and thermal power plants, which is applied in the direction of heat exchanger types, indirect heat exchangers, heat exchange equipment, etc., which can solve the problems of large floor area, heavy maintenance workload, and high equipment prices, and achieve thermal energy utilization High efficiency, simple and convenient maintenance, and low price

Inactive Publication Date: 2007-02-07
SHANGHAI POWER EQUIP RES INST
View PDF0 Cites 7 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] From 130°C to about 90°C, two methods are currently used to cool the temperature, the rotary flue gas-flue gas heat exchanger and water spraying, and the temperature is raised from 40-50°C to about 60-80°C. At present, the rotary flue gas-flue gas heat exchanger is mostly used

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
  • Fume-fume hot pipe heater exchanger for fume desulphurization in heat-engine plant

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0010] Example

[0011] like figure 1 As shown, it is a schematic structural diagram of a flue gas-flue gas heat pipe heat exchanger for flue gas desulfurization in a thermal power plant. The lower shell 3 and the upper shell 4 are composed. The lower shell 3 and the upper shell 4 are connected by the tube sheets 2 on both sides. The two sides of the lower shell 3 are respectively provided with a hot flue gas inlet 6 and a hot flue gas outlet 7. Both sides of the casing 4 are respectively provided with a cold flue gas inlet 8 and a cold flue gas outlet 9, the heat pipe 1 is vertically arranged between the lower casing 3 and the upper casing 4, and the heat pipe 10 arranged in the lower casing 3 adopts low temperature corrosion resistance. The heat pipe 11 installed in the upper shell 4 is made of ND steel or corrosion-resistant stainless steel with relatively high requirements for low-temperature corrosion resistance and relatively high price or corrosion-resistant stainless ...

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 flue gas-flue gas heat pipe heat exchanger for flue gas desulfurization in a thermal power plant, which is composed of a heat pipe, a tube plate, a lower shell and an upper shell. The two sides of the lower shell are respectively equipped with hot flue gas inlet and hot flue gas outlet, and the two sides of the upper shell are respectively equipped with cold flue gas inlet and cold flue gas outlet. The feature is that the heat pipe arranged in the lower casing is made of ordinary carbon steel or Corten steel with low low-temperature corrosion resistance requirements and low price, and the heat pipe arranged in the upper casing is made of relatively low-temperature corrosion-resistant steel. It is made of high-end and high-priced ND steel or corrosion-resistant stainless steel. The two heat pipes are welded, and the welding point is located at the connection between the lower shell and the upper shell. The invention has the advantages of high utilization rate of heat energy, basically no leakage, low operating energy consumption, small size, low price, and simple and convenient maintenance.

Description

technical field [0001] The invention relates to a flue gas-flue gas heat pipe heat exchanger for flue gas desulfurization in thermal power plants, and belongs to the technical field of flue gas desulfurization, environmental protection and energy saving in thermal power plants. Background technique [0002] At present, flue gas desulfurization of thermal power units in thermal power plants is an inevitable requirement. The temperature of the flue gas discharged from the boiler is generally around 130°C. In the wet desulfurization process, the temperature must be lowered from 130°C to about 90°C before desulfurization can be performed efficiently. The temperature of the flue gas flowing out of the desulfurization tower is about 40~ 50°C, considering the needs of environmental protection and anti-corrosion of tail equipment, it is necessary to heat the outlet smoke temperature from 40-50°C to 60-80°C. [0003] To cool down from 130°C to about 90°C, two methods are currently u...

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
IPC IPC(8): F28F21/06F28D1/04
Inventor 赵之军胡兴胜
Owner SHANGHAI POWER EQUIP RES INST
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