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Pure countercurrent sensible heat exchanger

A sensible heat exchanger and heat exchange core technology, applied in the field of ventilation systems, can solve the problems of narrow heat exchange channels, short service life, and low heat exchange efficiency, and achieve the effects of energy saving, long service life, and increased flow rate

Pending Publication Date: 2020-11-24
GUANGZHOU INST OF ENERGY CONVERSION - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the heat exchange core used in the mainstream products on the market is a paper heat exchanger, and the fresh air and exhaust air are cross-flow heat exchange. The heat exchange efficiency of the heat exchanger with this structure is low, and the heat exchange channel is narrow and easy to block, and The paper heat exchanger needs to be replaced regularly in a humid environment, usually within 15 to 30 days, so it needs to be replaced or cleaned, so its service life is short and the operating cost is high

Method used

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  • Pure countercurrent sensible heat exchanger
  • Pure countercurrent sensible heat exchanger
  • Pure countercurrent sensible heat exchanger

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] refer to figure 1 and figure 2 As shown, a pure counterflow sensible heat exchanger in this embodiment includes an outdoor air inlet 1, an indoor fresh air outlet 2, an indoor return air outlet 3, an outdoor air exhaust outlet 4, a heat exchange core 5, a housing 6, and a fresh air fan 7. Exhaust fan 8 , first filter layer 9 , second filter layer 10 and third filter layer 11 .

[0037] The heat exchange core 5 , the fresh air fan 7 , the exhaust fan 8 , the first filter layer 9 , the second filter layer 10 and the third filter layer 11 are all located in the housing 6 .

[0038] The heat exchange core 5 is mainly composed of several heat exchange tubes arranged and combined. In this example, the heat exchange tubes are ordinary thin-walled round tubes. The heat exchange tubes and the shell separate the first heat exchange air channel and the second heat exchange air duct. The first heat exchange air duct is composed of an outdoor air inlet 1 , a heat exchange core 5...

Embodiment 2

[0045] refer to image 3 and Figure 4 As shown, a pure counterflow sensible heat exchanger in this embodiment includes an outdoor air inlet 1, an indoor fresh air outlet 2, an indoor return air outlet 3, an outdoor air exhaust outlet 4, a heat exchange core 5, a housing 6, and a fresh air fan 7. Exhaust fan 8 , first filter layer 9 , second filter layer 10 and third filter layer 11 .

[0046] The heat exchange core 5 , the fresh air fan 7 , the exhaust fan 8 , the first filter layer 9 , the second filter layer 10 and the third filter layer 11 are all located in the housing 6 .

[0047] The heat exchange core 5 is mainly formed by arranging and combining several heat exchange tubes. In this example, the heat exchange tubes are twisted tubes. The heat exchange tubes and the shell separate the first heat exchange air channel and the second heat exchange air channel road. The first heat exchange air duct is composed of an outdoor air inlet 1 , a heat exchange core 5 heat excha...

Embodiment 3

[0055] refer to Figure 5 and Figure 6 As shown, a pure countercurrent sensible heat exchanger, the heat exchange core adopts a modular design, consisting of two or more sets of heat exchange cores side by side, with independent heat exchange air ducts, this embodiment adopts a two-module design , respectively corresponding to the first system and the second system, in each system, outdoor fresh air and indoor dirty air flow through independent air ducts for heat exchange. specific:

[0056] The first system includes the first system outdoor air inlet 1a, the first system indoor fresh air outlet 2a, the first system indoor return air outlet 3a, the first system outdoor air outlet 4a, the first system heat exchange core 5a, the first system fresh air Fan 7a, first system exhaust fan 8a, first system first filter layer 9a, first system second filter layer 10a, first system third filter layer 11a.

[0057] The second system includes the second system outdoor air inlet 1b, the...

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Abstract

The invention relates to the technical field of ventilation systems, in particular to a pure countercurrent sensible heat exchanger. The pure countercurrent sensible heat exchanger comprises an outdoor air inlet, an indoor fresh air port, an indoor air return port, an outdoor air outlet, a heat exchange core body, a shell, a fresh air fan, an exhaust fan, a first fresh air filter layer, a second fresh air filter layer, a third fresh air filter layer and an exhaust filter layer, wherein the heat exchange core body, the fresh air fan, the exhaust fan, the first fresh air filter layer, the secondfresh air filter layer and the third fresh air filter layer are all in the shell; the heat exchange core body is divided into a first heat exchange air duct and a second heat exchange air duct by a heat exchange tube and the shell; the first heat exchange air duct consists of the outdoor air inlet, the heat exchange core tube pass and the indoor fresh air port; and the second heat exchange air duct consists of the indoor air return port, the heat exchange core body shell pass and the outdoor air outlet. The pure countercurrent sensible heat exchanger overcomes the defects of low heat exchangeefficiency, short service life and high maintenance cost of a conventional sensible heat exchanger.

Description

technical field [0001] The invention relates to the technical field of ventilation systems, in particular to a pure counterflow sensible heat exchanger. Background technique [0002] With the development of urbanization, people's living standards continue to improve, and modern urbanites are paying more and more attention to the living environment. At present, sensible heat exchangers are generally used in interior design to recover exhaust air cold / heat, and at the same time purify indoor air. To achieve the purpose of providing a comfortable and clean environment. However, with the rapid development of modern industry, air pollution is becoming more and more serious, and there are more and more haze days, and harmful substances in the air (such as PM2.5) seriously exceed the standard. Substances can easily block the dust removal filter device of the sensible heat exchanger, so the dust removal filter device needs to be cleaned or replaced frequently, and the service life ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24F12/00F24F13/28F24F13/24F24F7/007F24F3/16F28F21/08F28F1/02A61L9/20
CPCF24F12/001F24F13/28F24F13/24F24F7/007F24F3/16F28F21/085F28F21/083F28F21/086F28F21/084F28F1/02A61L9/20F24F2013/247
Inventor 朱冬生陈二雄尹应德刘世杰叶周陈杭生
Owner GUANGZHOU INST OF ENERGY CONVERSION - CHINESE ACAD OF SCI