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Air conditioning device

A technology for air conditioning and conditioning components, applied in air conditioning systems, space heating and ventilation, heating methods, etc., can solve the problems of improper heat exchanger design, small moisture absorption, large sensible heat loss, etc., to reduce production and operation. Cost, reduced requirements for special components, simplified structure and effect of control

Active Publication Date: 2016-10-12
SHANGHAI JIAO TONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the entire air conditioning system occupies a large space, the initial investment of the system is high, and the system control is cumbersome.
The reasons for this phenomenon include two aspects: First, the hygroscopic agents currently used are basically ordinary silica gel or zeolite hygroscopic agents. The mass of the hygroscopic agent that can be loaded on the surface of the heater is small, causing the hygroscopic agent to absorb moisture quickly and saturate, and then needs to be heated and regenerated. Therefore, due to the frequent switching of heat exchange, the loss of sensible heat is large, and the sensible heat transfer is difficult to control; At present, there is a lack of in-depth research on the heat and mass transfer process of this type of heat exchanger. Existing research and applications have focused on utilizing its dehumidification capacity, resulting in improper design of the heat exchanger and low sensible heat transfer coefficient, so it is difficult to achieve sensible heat load. deal with

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Such as Figure 1 to Figure 6 As shown, the air-conditioning apparatus 1 according to Embodiment 1 includes a refrigerant circuit 10 in which a refrigerant circulates to perform a vapor compression heat pump cycle, and a cooling and heating medium circuit 20 in which a cooling and heating medium circulates and exchanges heat with air. The refrigerant circuit 10 is used to perform a vapor compression heat pump cycle to cool and heat the heat transfer medium in the cold storage unit 31 and the heat storage unit 32 . The cooling and heating medium circuit 20 has a first heat exchanger 21 and a second heat exchanger 22 coated with hygroscopic agent on the two surfaces, and they can be alternately fed with refrigerant or heat medium for moisture absorption and dehumidification operation. The air is treated with latent heat; it can also be continuously fed with refrigerant or heat medium as a common heat exchanger to treat the air with sensible heat.

[0035] Not shown in th...

Embodiment 2

[0057] Such as Figure 7 ~ Figure 10 As shown, the air-conditioning apparatus 2 according to the second embodiment includes a refrigerant circuit 10 in which a refrigerant circulates to perform a vapor compression heat pump cycle, and a cooling and heating medium circuit 20 in which a cooling and heating medium circulates and exchanges heat with air. The refrigerant circuit 10 is used to perform a vapor compression heat pump cycle to cool and heat the heat transfer medium in the cold storage unit 31 and the heat storage unit 32 . The cooling and heating medium circuit 20 has a first heat exchanger 21 coated with a hygroscopic agent on the surface and a second heat exchanger 22 not coated with a hygroscopic agent on the surface. The first heat exchanger 21 is mainly used for air Latent heat treatment is performed, and the second heat exchanger 22 is used for sensible heat treatment of the air.

[0058] Not shown in the drawings, the second heat exchanger 22 is composed of a he...

Embodiment 3

[0071] Such as Figure 11 As shown, the air conditioner related to the third embodiment is an example in which the method of generating cold and heat medium by using the refrigerant circuit 10 is changed compared with the first and second embodiments.

[0072] In the embodiment, both the first pump 41 and the second pump 42 are turned off, the cooling and heating medium circuit 20 is not working, only the refrigerant circuit 10 is working, and the refrigerant vapor compression heat pump cycle is performed to convert electric energy into cold energy and store heat energy in the In the cold storage unit 31 and the heat storage unit 32 .

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Abstract

The invention discloses an air conditioning device which comprises a cold storage unit, a heat storage unit, a refrigerant loop and a cold and heat medium loop. A first heat exchanger is arranged in the cold storage unit, and a second heat exchanger is arranged in the heat storage unit. The refrigerant loop is connected between the first heat exchanger and the second heat exchanger. The cold and heat medium loop is connected with the cold storage unit and the heat storage unit. The cold and heat medium loop comprises a heat exchanger set, a first conditioning assembly is connected with an inlet of the heat exchanger set, and a second conditioning assembly is connected with an outlet of the heat exchanger set. The first conditioning assembly is connected with a cold medium outlet of the cold storage unit and a first heat medium outlet of the heat storage unit. The second conditioning assembly is connected with a cold medium inlet of the cold storage unit and a heat medium inlet of the heat storage unit. Compared with the prior art, the air conditioning device has the following beneficial effects that the whole air processing device can be made to be more compact and smaller, the requirement of the device for special parts can be lowered, the structure of a system and control over the system are simplified, and the production and operation cost of the device is reduced.

Description

technical field [0001] The invention relates to a heat exchange device, in particular to a heat exchange device which utilizes a hygroscopic agent coating on the surface of the heat exchanger to enhance the latent heat treatment capacity of the heat exchanger, improve the heat dissipation capacity of the heat exchanger and increase the heat exchange efficiency. Background technique [0002] Coating a material with moisture absorption function on the surface of the heat exchanger can constitute a heat exchanger that can efficiently treat the latent heat of the air (hereinafter referred to as a dehumidification heat exchanger). There are already the following heat exchangers, for example, China Patents CN1864033A and CN101171459A, that is: use air, cold water or refrigerant to take away the heat of adsorption generated during the moisture absorption process of the hygroscopic agent in time, so as to enhance the latent heat load handling capacity while keeping the sensible heat ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F25B41/04F28F13/18F28D20/02F25B29/00F24F3/14F25B41/20F25B41/31
CPCF24F3/14F24F3/1417F25B29/003F28D20/02F28F13/18F25B41/20Y02E60/14
Inventor 涂耀东王如竹葛天舒
Owner SHANGHAI JIAO TONG UNIV