Heat exchanger

Details Heat exchanger Heat exchanger

2003-12-10

2004-09-28

Jones, Melvin (Department: 3744)

Refrigeration

Material cooling means including gas-liquid contactor

Diverse treating means

C062S305000, C062S309000, C165S060000

Reexamination Certificate

active

06796140

ABSTRACT:

BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a heat exchanger with improved heat exchange capability to save energy and reduce thermal pollution.
2. Description of the Prior Art
A conventional refrigeration air conditioning system
9
(as shown in
FIG. 1
) mainly includes a compressor
91
, a condenser
92
, an evaporator
93
, a refrigerant flow controller
94
and a refrigerant switch valve
95
. The condenser
92
and the evaporator
93
generally are called heat exchanger (or heat exchange device) A. It mainly includes, a coiled tube L and an air fan motor M (referring to FIG.
2
). Such a heat exchanger has drawbacks in operation, notably:
1. During heat discharge operation, heat exchange occurs between air intake and the coiled tube of the heat exchanger. Heated air is directly discharged into atmosphere. The heated air produces thermal pollution to the environment.
2. In lower temperature, seasons (such as winter) water content in the air is low during heat absorption operation. Only sensible heat is exchanged during heat exchange process. As a result, heat exchange capability and efficiency decrease significantly.
SUMMARY OF THE INVENTION
In view of the aforesaid disadvantages, the present invention aims to provide an improved heat exchanger that mainly includes a primary heat exchanger, a water vaporization device and a secondary heat exchanger. The secondary heat exchanger can raise the temperature of air intake to increase water absorption capability of the air and improve moisture boosting capability of the water vaporization device so that water content in the air increases and heat exchange capability of the primary heat exchanger is enhanced thereby energy may be saved and thermal pollution is reduced.
The objects of the invention are as follow:
1. Provide a heat exchanger with improved heat exchange capability. When the primary heat exchanger is functioned to discharge heat and coupled with the water vaporization device for moisture boosting, water content in the air may increase to enhance heat exchange capability of the primary heat exchanger and transform sensible heat to latent heat thereby to save energy and reduce thermal pollution.
2. Provide a heat exchanger with improved heat exchange capability. When the heat exchanger is functioned to absorb heat, it employs the secondary heat exchanger to preheat air intake. Coupled with the water vaporization device to add moisture, water content in the air may increase thereby enhance heat exchange capability of the primary heat exchanger and save energy.
The foregoing, as well as additional objects, features and advantages of the invention will be more readily apparent from the following detailed description, which proceeds with reference to the accompanying drawings.


REFERENCES:
patent: 6282913 (2001-09-01), Moriguchi et al.
patent: 6434963 (2002-08-01), Urch
patent: 405010656 (1993-01-01), None

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