Corrugated plate condensation type heat exchanger
A technology of condensing heat exchangers and corrugated plates, applied in the field of enhanced heat transfer, can solve problems such as not being able to be separated in time, quickly returning to the mainstream, affecting the heat transfer efficiency of the heat exchanger, and having a temperature much higher than the dew point , to improve the heat transfer effect, increase the heat transfer coefficient, and improve the effect of gas-water separation
Inactive Publication Date: 2016-01-27
CHANGZHOU UNIV +1
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Problems solved by technology
In order to improve the heat transfer coefficient on the gas side, finned tube heat exchangers are generally used. When the traditional finned tube heat exchanger is directly applied to the wet gas to recover its sensible heat and latent heat of condensation, when the wet gas and the wall surface below the dew point temperature During heat exchange, condensate will be produced on the heat exchange surface, but due to the lack of structure and direct air flow, the condensate cannot be separated in time, and will soon return to the main flow, and the temperature of the main flow may be much higher than that at this time. Dew point temperature, so that the condensate will evaporate into the mainstream again, causing the temperature of the mainstream to drop. As a result, the latent heat of condensation is not recovered, which directly affects the heat transfer efficiency of the overall heat exchanger. Therefore, only when the temperature of the mainstream drops below the dew point temperature After that, the latent heat of condensation can be truly recovered. Further, even if the mainstream temperature drops below the dew point temperature, the tiny particles of condensate condensed in the mainstream gas need a high-efficiency gas-liquid separation device to quickly remove the droplets in the wet gas
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[0024] The present invention is described in further detail now in conjunction with accompanying drawing. These drawings are all simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, so they only show the configurations related to the present invention.
[0025] like Figure 1-4 As shown, it is the best embodiment of the present invention, a corrugated plate condensing heat exchanger, including a box body 2, a plurality of corrugated plate heat exchange elements 4, an upper header 5, a lower header 6, a liquid accumulation bucket 7 and Drain pipe 8, one end of the box body 2 is provided with an air inlet 1, and the other end of the box body 2 is provided with an air outlet 3, the air inlet 1 and the air outlet 3 are connected, and a plurality of corrugated plate heat exchange elements 4 are parallel to each other Arranged in the box body 2, the end of each corrugated plate heat exchange element 4 close to the ...
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The invention belongs to the technical field of strengthened heat transfer and relates to a corrugated plate condensation type heat exchanger having a gas-liquid separation effect. The corrugated plate condensation type heat exchanger comprises a box, an air inlet, an air outlet, an upper container, a lower container, a plurality of corrugated plate heat exchange elements, a liquid accumulation hopper and a drainage pipe. The multiple parallel corrugated plate heat exchange elements provided with internal flow guiding channels are vertically arranged in the box of the heat exchanger. Guiding-in pipes of all the corrugated plate heat exchange elements penetrate through the box to be communicated with the upper container. Guiding-out pipes of all the corrugated plate heat exchange elements penetrate through the box to be communicated with the lower container. The air inlet is communicated with one end of the box of the heat exchanger. The air outlet is communicated with the other end of the box. The liquid accumulation hopper is internally communicated with the bottom of the box. The drainage pipe is internally communicated with the bottom of the liquid accumulation hopper. The corrugated plate condensation type heat exchanger is suitable for the condensation heat exchange process of hot wet gas, and the corrugated plate heat exchange elements can have the effects of efficient heat exchange and gas-liquid separation; meanwhile, pollutant gas and microparticles in the hot wet gas can be dissolved by condensed fluid, and gas purification is achieved to a certain extent.
Description
technical field [0001] The invention relates to the technical field of heat transfer enhancement, in particular to a corrugated plate condensing heat exchanger. Background technique [0002] As a high-quality, efficient and clean fuel, natural gas is widely used in industrial production, urban transportation and residents' life, and has become the main fuel for industrial boilers and industrial furnaces. Since the main component of natural gas is methane gas, the flue gas after combustion contains a large amount of water vapor, with a volume ratio of about 20%. Generally, the mixture of dry flue gas and a certain amount of water vapor can be called wet flue gas. According to the combustion calculation, the amount of water vapor produced by the combustion of natural gas per cubic meter reaches 1.652kg / m3 and the latent heat of vaporization reaches 4130kJ / m3. However, due to structural limitations and other factors in domestic gas-fired boilers and industrial furnaces, the ex...
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IPC IPC(8): F28B1/02
Inventor王政伟雷斌冯锦宇殷诗明
OwnerCHANGZHOU UNIV