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Method for avoiding dew point corrosion of heat pipe heat exchanger and a heat pipe heat exchanger

A heat pipe heat exchanger, dew point corrosion technology, applied in indirect heat exchangers, combustion methods, waste heat treatment, etc., can solve the problems of reduced waste heat recovery, high difficulty in manufacturing jacketed heat pipes, increased investment, etc., and achieves a simple structure. Effect

Inactive Publication Date: 2008-07-16
杨署生
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this technology adds a set of intermediate medium system, and due to the participation of the intermediate medium, the air-flue gas heat transfer temperature difference of the relevant part is reduced by half, and the heat exchange area needs to be doubled. Much higher than ordinary heat pipes, thus greatly increasing the investment
The economy of using this technology to recover waste heat is greatly reduced

Method used

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  • Method for avoiding dew point corrosion of heat pipe heat exchanger and a heat pipe heat exchanger
  • Method for avoiding dew point corrosion of heat pipe heat exchanger and a heat pipe heat exchanger
  • Method for avoiding dew point corrosion of heat pipe heat exchanger and a heat pipe heat exchanger

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] See attached figure 1 , the heat pipe heat exchanger includes a flue gas channel 1, a heat pipe group 2 and a heated air channel 3, the flue gas channel and the heated air channel are parallel to each other, the heating section of the heat pipe group is in the flue gas channel, and the heat dissipation section is in the heated air channel channel. There is a high-temperature flue gas inlet 4 located in two equal parts of the flue gas passage, and a flow control valve 6 is located in the passage 5 for passing the high-temperature flue gas. A temperature measuring element 7 is arranged at the outlet of the flue gas channel, and the temperature measuring element is connected to the flow control valve through the controller 8 through the signal transmission line.

[0023] The flue gas and the heated air pass through the flue gas channel and the heated air channel in opposite directions respectively. The high-temperature flue gas enters the flue gas channel in the direction...

Embodiment 2

[0025] See figure 2 and image 3 , the heat pipe heat exchanger includes a flue gas channel 1, a heat pipe group 2 and a heated air channel 3, and the flue gas channel and the heated air channel are juxtaposed with each other. The heating section of the heat pipe group is in the flue gas passage, and the heat dissipation section is in the heated air passage. There is a high-temperature flue gas inlet 4 on the two side walls of the two equal parts of the flue gas passage, and a flow control valve 6 is located in the passage 5 for passing the high-temperature flue gas. A temperature measuring element 7 is arranged at the outlet of the flue gas channel, and the temperature measuring element is connected to the flow control valve through the controller 8 through the signal transmission line.

[0026] The flue gas and the heated air pass through the flue gas channel and the heated air channel in opposite directions respectively. The high-temperature flue gas enters the flue gas ...

Embodiment 3

[0028] See Figure 4 and Figure 5, the heat pipe heat exchanger includes a flue gas channel 1, a heat pipe group 2 and a heated air channel 3, and the flue gas channel and the heated air channel are juxtaposed with each other. The heating section of the heat pipe group is in the flue gas passage, and the heat dissipation section is in the heated air passage. There is a high-temperature flue gas inlet 4 on the bottom wall at the two equal parts of the flue gas passage. In order to better distribute the incoming high-temperature flue gas in the flue gas passage, the inlet 4 is designed as a long and narrow horizontal shape. The inlet of the high-temperature flue gas is directly placed at the entrance of the flue gas passage 1, which makes the structure of the whole heat pipe heat exchanger more concise. There is a flow control valve 6 in the passage 5 for passing the high-temperature flue gas, and a temperature measuring element 7 is installed at the outlet of the flue gas pa...

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Abstract

This invention relates to heat pipe exchanger method to avoid exposed point erosion and to one exchanger device, wherein, The exchanger comprises smoke channel, heat pipe set and heated air channel, wherein, the channel and the heated air channel are parallel to each other; the heat pipe set is located to the smoke channel and the dissipation section is located on the heated air channel; The smoke and the heated air are inversed through smoke channel and heated air channel with near exit section to one high temperature for heating.

Description

technical field [0001] The invention relates to a method for avoiding dew point corrosion of a flue gas and air heat pipe heat exchanger, and to a flue gas and air heat pipe heat exchanger manufactured by the method. Background technique [0002] The heat pipe is a heat transfer element with high heat transfer performance. It transfers heat through the phase change latent heat of the working medium in the closed vacuum tube shell. In the heating section, the medium inside the heat pipe is heated and evaporated. After the medium rises to the upper part, it condenses in the heat dissipation section. Exothermic. The heat transfer performance of the heat pipe is similar to the electrical conductivity of a superconductor, so it has the characteristics of large heat transfer capacity and high heat transfer efficiency. Combined with finned tube technology, heat pipes are often used for waste heat recovery of various heating furnaces, and become the most direct and beneficial means...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F28D15/02F28D15/06F27D17/00F23L15/04
CPCY02E20/34
Inventor 杨署生
Owner 杨署生
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