Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Heat recovery solution dehumidifying fresh air handling unit

A technology of solution dehumidification and fresh air unit, which is applied in space heating and ventilation, details of space heating and ventilation, energy recovery system for ventilation and heating, etc. It can solve the problem of solution concentration reduction and achieve the ability to carry heat. Effect of improving dehumidification capacity and improving heat pump efficiency

Active Publication Date: 2012-05-23
TSINGHUA UNIV +1
View PDF2 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the function of the regeneration module itself is to increase the concentration of the solution and realize the concentrated regeneration of the solution, while replenishing water directly leads to a decrease in the concentration of the solution. There is a significant contradiction between the two

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Heat recovery solution dehumidifying fresh air handling unit
  • Heat recovery solution dehumidifying fresh air handling unit
  • Heat recovery solution dehumidifying fresh air handling unit

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] like figure 1 As shown, the fresh air unit in this embodiment includes a solution circulation system, a heat pump system and an evaporative cooling water system.

[0022]The solution circulation system includes two-stage total heat recovery modules A1-A2, B1-B2 composed of two gas-liquid direct contact spray modules connected in series, dehumidification modules C1, D1 and regeneration modules C2, D2. The two-stage total heat recovery modules A1-A2, B1-B2 are respectively connected with a solution circulation pump 1 to form a total heat recovery unit, and the gas-liquid directly contacts the spray modules A1, B1 and the dehumidification modules C1, D1 are arranged side by side to form a fresh air treatment channel ; Gas-liquid direct contact spray modules A2, B2 and regeneration modules C2, D2 are arranged side by side to form an indoor exhaust channel. The dehumidification module C1 is connected to the regeneration module C2, and the dehumidification module D1 is conne...

Embodiment 2

[0028] like figure 2 As shown, the difference between this embodiment and Embodiment 1 is that the heat pump system in the fresh air unit of this embodiment includes two heat pump circulation loops, the compressor 3, the condensers 4, 5, the evaporator 7 and the throttle valve 9 constitute a A heat pump circulation circuit, wherein the inlets of the condensers 4 and 5 are connected in parallel to the outlet of the compressor 3, the outlets of the condensers 4 and 5 are connected in parallel to the inlet of the throttle valve 9, and the inlet of the condenser 4 is provided with a solenoid valve 10 ; The inlet of the evaporator 7 is connected to the outlet of the throttle valve 9 in parallel, and the outlet of the evaporator 7 is connected to the inlet of the compressor 3 in parallel. Compressor 3 ', condenser 4, 6, evaporator 8 and throttling valve 9 ' constitute another heat pump cycle, wherein the inlets of condensers 4, 5 are all connected in parallel to the outlet of compr...

Embodiment 3

[0031] like image 3 As shown, the difference between this embodiment and Embodiment 1 is that the fresh air unit of this embodiment includes two sets of heat pump systems, and each set of heat pump systems consists of a compressor 3 (or 3′), a condenser 5 (or 6), a condenser 4 (or 4'), throttling valve 9 (or 9') and evaporator 7 (or 8) are sequentially connected to form an independent heat pump circulation loop, and the evaporative cooling module E exchanges heat with the condensers 4 and 4' respectively end in parallel.

[0032] In the above embodiment, the evaporative cooling module E can also be connected in series with the heat exchange ends of the condensers 4, 4' (not shown in the figure).

[0033] Although the structure of the fresh air unit in this embodiment is more complicated than that in Embodiment 1, because it has two sets of heat pump systems (that is, two independent heat pump circulation loops), its energy utilization efficiency is higher than that of the fr...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to a heat recovery solution dehumidifying fresh air handling unit, which is characterized by comprising a solution circulating system, a heat pump system and an evaporative cooling water system, wherein the solution circulating system comprises a two-stage total heat recovery module, a dehumidifying module and a regeneration module; the two-stage total heat recovery module is connected with a solution circulating pump to form a total heat recovery unit; the dehumidifying module is connected with the regeneration module to form an inter-stage solution circulation loop; the heat pump system comprises a heat pump circulation loop, which is comprised of a compressor, a first condenser, a throttle valve, an evaporator and a second condenser; the heat exchange end of the second condenser is connected with the corresponding regeneration module through the solution circulating pump to form a solution heating loop; the heat exchange end of the evaporator is connected withthe corresponding dehumidifying module through the solution circulating pump to form a solution cooling loop; and the evaporative cooling water system comprises a water heating loop formed by communicating an evaporative cooling module with the heat exchange end of the first condenser through a water circulating pump. The heat recovery 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 recovery type solution dehumidification fresh air unit combined with heat pump driving and evaporative cooling. Background technique [0002] In the air conditioning system, it is usually necessary to cool and dehumidify the outdoor fresh air in summer. Most of the existing air-conditioning systems adopt the condensation dehumidification treatment method, and use the refrigerator to prepare low-temperature chilled water to reduce the air temperature below the dew point (lower than the dew point temperature of the air), so as to realize the dehumidification treatment process for the fresh air. Since the cold water temperature required for dehumidification is much lower than the cold water temperature required for cooling, the evaporation temperature of the refrigerator is reduced, thereby reducing the coefficient of performance of the refrigerator. Moreover, the condensed water produced...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): F24F3/147F24F12/00F24F13/30
Inventor 刘晓华张海强张涛江亿陈晓阳
Owner TSINGHUA UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com