Internally-cooled solution dehumidifying fresh air handling unit driven by heat pump

A new air unit, solution dehumidification technology, applied in space heating and ventilation, space heating and ventilation details, household heating, etc., can solve the problem of large irreversible losses, reduce working temperature difference, improve indoor air quality, The effect of improving energy efficiency

Active Publication Date: 2010-09-29
TSINGHUA UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the application of the solution dehumidification circulation system, the regeneration heat comes from the natural gas boiler, and the grade of the required heat is very high, and the dehumidification and regeneration process are single-stage devices, and the irreversible loss in the treatment process is large.

Method used

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  • Internally-cooled solution dehumidifying fresh air handling unit driven by heat pump
  • Internally-cooled solution dehumidifying fresh air handling unit driven by heat pump
  • Internally-cooled solution dehumidifying fresh air handling unit driven by heat pump

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Embodiment 1

[0018] Such as figure 1 As shown, the fresh air unit of this embodiment includes an internal cooling type dehumidification module 1, an internal heating type regeneration module 2 and an evaporative cooling module 3, and the internal cooling type dehumidification module 1 consists of a dehumidification spray device 11 and a dehumidification heat exchange tube 12, the internal heat regeneration module 2 is composed of a regeneration spray device 21 and a regeneration heat exchange tube 22, and the evaporative cooling module 3 is composed of an evaporative cooling spray device 31 and an evaporative cooling heat exchange tube 32. The internal cooling type dehumidification module 1, the internal heating type regeneration module 2 and the evaporative cooling module 3 form the solution circulation system, the heat pump system and the evaporative cooling water system of the fresh air unit. The internal cooling type dehumidification module 1 is a fresh air channel, the internal heatin...

Embodiment 2

[0025] Such as figure 2 As shown, the difference between this embodiment and Embodiment 1 is that the fresh air unit of this embodiment includes a two-stage solution circulation system and a two-stage heat pump system, that is, two parallel internal cooling dehumidification modules 1, 1', two Internal heat regeneration modules 2, 2' and an evaporative cooling module 3 are connected in parallel, and the evaporative cooling module 3 is provided with two sets of evaporative cooling heat exchange tubes 32, 32'. In this embodiment, the structure of the solution circulation system and the evaporative cooling water system is the same as that of Embodiment 1, and the circulation circuit for exchanging heat with the solution in the heat pump system is also the same as that of Embodiment 1, except that the internal cooling type dehumidification module 1, The dehumidification heat exchange tubes 12, 12' in 1' are respectively connected with two sets of evaporative cooling heat exchange ...

Embodiment 3

[0029] Such as image 3 As shown, the difference between this embodiment and Embodiment 1 is that the internal cooling type dehumidification module 1, the internal heating type regeneration module 2 and the evaporative cooling module 3 of this embodiment are all provided with two sets of heat exchange tubes, and the internal cooling type dehumidification module Module 1, internal heat regeneration module 2 and evaporative cooling module 3 adopt the form of countercurrent heat exchange. Compressor 6, regenerative heat exchange tube 22, throttle valve 7 and dehumidification heat exchange tube 12 are sequentially connected to form the first and solution heat exchange loop; compressor 6, solenoid valve 8, evaporative cooling heat exchange tube 32, throttle valve 7 and the dehumidification heat exchange pipe 12 are sequentially connected to form the first water heat exchange circulation loop. Compressor 6', regenerative heat exchange tube 22', throttle valve 7' and dehumidificatio...

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Abstract

The invention relates to an internally-cooled solution dehumidifying fresh air handling unit driven by a heat pump, which is characterized by comprising a solution circulating system consisting of an internally-cooled dehumidifying module, an internally-thermal regeneration module and an evaporative cooling module, a heat pump system and an evaporative cooling water system, wherein the internally-cooled dehumidifying module is a fresh air channel; the internally-thermal regeneration module and the evaporative cooling module are arranged in parallel to form a regeneration air stream channel; the solution circulating system comprises an interstage solution circulation loop formed by connecting a dehumidifying sprinkler with a regeneration sprinkler through a solution circulating pump, and saline solution is filled into the interstage solution circulation loop; the heat pump system comprises a circulation loop performing heat exchange with solution and a circulation loop performing heat exchange with water, which are formed by connecting a dehumidifying heat exchange tube with a regeneration heat exchange tube and an evaporative cooling heat exchange tube in parallel through a compressor, and refrigeration working media are filled into the two circulation loops; and the evaporative cooling water system comprises a cooling water circulation loop formed by the evaporative cooling sprinkler through a water circulating pump. The internally-cooled solution dehumidifying fresh air handling unit can be widely applied on occasions where dry fresh air is needed to be supplied.

Description

technical field [0001] The invention relates to a fresh air unit, in particular to a heat pump driven internal cooling solution dehumidification fresh air unit. Background technique [0002] At present, most of the existing air conditioners adopt the condensation dehumidification treatment method, and use the refrigerator to prepare low-temperature frozen water to reduce the air temperature below the dew point, thereby realizing the dehumidification treatment process for the fresh air. Since the required cold source temperature is very low (lower than the dew point temperature of the air), the evaporation temperature of the refrigerator is reduced, which seriously affects the coefficient of performance of the refrigerator. Moreover, the condensed water produced by condensation dehumidification is easy to breed mold and seriously affect the indoor air quality. The solution dehumidification method uses a salt solution with hygroscopic properties as the working medium, which i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24F3/14F24F12/00F24F13/30
CPCF24F3/1417
Inventor 刘晓华张海强张涛江亿陈晓阳
Owner TSINGHUA UNIV
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