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Efficient CO2 gas cooler

A gas cooler, high-efficiency technology, applied in heat exchanger types, indirect heat exchangers, heat exchange equipment, etc., can solve the problems of low convective heat transfer coefficient and low convective heat transfer coefficient, and achieve enhanced convective heat transfer coefficient , Improve heat transfer performance and alleviate the effect of greenhouse effect

Pending Publication Date: 2018-03-23
TIANJIN UNIV OF COMMERCE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the gas cooler, the CO at the inlet and outlet sections 2 The convective heat transfer coefficient is relatively low, even lower than the convective heat transfer coefficient on the cooling water side

Method used

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  • Efficient CO2 gas cooler
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] The inner tube of the casing heat exchanger is generally made of copper, and the metal foam layer is one or more of copper foam, aluminum foam, iron foam, and nickel foam. There are straight or spiral channels on the surface of the metal foam layer. Figure 2-1 is a cross-sectional view of the inner pipe (straight channel metal foam layer) of the sleeve heat exchanger, and Figure 2-2 is a partial schematic diagram of the linear channel . Since the inner tube of the casing heat exchanger is not integrated with the metal foam, and the materials may be different, in order to make the two tightly connected, the two should adopt an interference fit, and the diameter of the metal foam layer is larger than the heat exchange of the casing. The inner diameter of the inner tube wall of the device is 0.1-0.3mm larger.

Embodiment 2

[0029] The difference from Embodiment 1 is that Fig. 2-3 is a cross-sectional view of the inner pipe of the casing heat exchanger (helical linear channel metal foam layer in a single direction), and Fig. 2-4 is a partial schematic diagram of the helical channel. The purpose of changing the surface shape of the metal foam layer is mainly to increase the heat exchange area and improve the heat exchange efficiency of the heat exchange tube.

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Abstract

The invention discloses an efficient CO2 gas cooler. According to the efficient CO2 gas cooler, sleeve heat exchanger inner tubes penetrate a plurality of rows of vertically-arranged sleeve heat exchanger outer tubes in a coiled manner, porous foam metal layers are paved on tube inner walls of hot fluid inlet sections and hot fluid outlet sections of the sleeve heat exchanger inner tubes, the porous foam metal layers and the tube inner walls are tightly attached, porous metal foam materials of the porous foam metal layers are of three-dimensional structures, and holes are communicated. According to the efficient CO2 gas cooler, the porous foam material density is low, and the length of heat exchange tubes can be decreased while the heat exchange strength of the CO2 gas cooler is improved;and under the condition that the heat exchange amount is same, the heat exchange area can be reduced, metal consumption is reduced, the weight of heat exchangers is small, and the structure is more compact.

Description

technical field [0001] The invention relates to the field of gas coolers, more specifically, a high-efficiency CO cooler for heat pump water heaters 2 gas cooler. Background technique [0002] For a long time, human beings have greatly developed the entire human society at the expense of sacrificing the earth's environment and consuming a large amount of non-renewable energy. However, as a punishment, the deteriorating environment also uses frequent disasters to constantly warn mankind to treat the earth well. At the same time, the massive reduction of non-renewable energy also reminds human beings to pay attention to the full utilization of energy and the development of new energy. Under such circumstances, it is urgent to develop and utilize environmentally friendly refrigerants. [0003] Nowadays, the energy problem has increasingly become the "bottleneck" of my country's economic development and social progress. my country's economic development is highly dependent o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F28D7/08F28F21/08
CPCF28D7/082F28F21/08
Inventor 代宝民刘圣春苌光宇李晓欢刘坤王海丹
Owner TIANJIN UNIV OF COMMERCE
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