Air handling system and air handling method using the system

Patent metadata

Field	Value
Publication number	US-10260766-B2
Application number	US-201615171891-A
Country	US
Kind code	B2
Filing date	Jun 2, 2016
Priority date	Jun 3, 2015
Publication date	Apr 16, 2019
Grant date	Apr 16, 2019

Abstract

An air handling system includes an indirect heat exchanger, a first circulation equipment, a second circulation equipment, a third circulation equipment, a direct adjusting apparatus, a first sensor configured to detect a state of a first air, a second sensor configured to detect a state of a second air, and a control apparatus configured to receive the state of the first air, receive the state of the second air, and control at least one of a circulation of the first air within the first circulation equipment, a circulation of second air within the second circulation equipment, a liquid injection by a vaporization part, an exchange of the second air with the first air with the third circulation equipment, and a direct adjustment of the second air with the direct adjusting apparatus based on the received state of the first air and the received state of the second air.

First claim

What is claimed is:

1. An air handling system, comprising:
an indirect heat exchanger comprising a heat exchange part comprising:
a vaporization part configured to inject liquid into the heat exchange part;
a first heat exchange path; and
a second heat exchange path configured to exchange heat with the first heat exchange path and the vaporization part;

a first circulation equipment connected to the first heat exchange path, the first circulation equipment is configured to circulate a first air through the first heat exchange path;
a second circulation equipment connected to a target space and the second heat exchange path, the second circulation equipment is configured to circulate a second air through the second heat exchange path;
a third circulation equipment configured to exchange the second air with the first air such that the first air is provided directly to the target space and blocked from the second heat exchange path and the second air is emitted from the target space;
a direct adjusting apparatus configured to directly adjust the temperature of the second air;
a first sensor configured to detect a state of the first air comprising a temperature and a humidity of the first air;
a second sensor configured to detect a state of the second air comprising a temperature and a humidity of the second air; and
a control apparatus configured to:
receive the state of the first air from the first sensor;
receive the state of the second air from the second sensor; and
control at least one of a circulation of the first air within the first circulation equipment, a circulation of second air within the second circulation equipment, a liquid injection by the vaporization part, an exchange of the second air with the first air with the third circulation equipment, and a direct adjustment of the second air with the direct adjusting apparatus based on the received state of the first air detected by the first sensor and the received state of the second air detected by the second sensor,

wherein the second circulation equipment comprises:
a second supplying path part connected to an exit of the target space and an entrance of the second heat exchange path,

a second outlet path part connected to an inlet of the target space and an exit of the second heat exchange path, and
a second circulation control part disposed in at least one of the second supplying path part, and the second outlet path part, the second circulation control part configured to control the circulation of the second air of the second heat exchange path based on a signal received from the control apparatus.

2. The system of claim 1 , wherein the control apparatus is further configured to control at least one of the circulation of the first air within the first circulation equipment, the circulation of second air within the second circulation equipment, the liquid injection by the vaporization part, the exchange of the second air with the first air with the third circulation equipment, and the direct adjustment of the second air with the direct adjusting apparatus such that the state of the second air within the target space is maintained within a control condition area of a psychrometric chart.

3. The system of claim 2 , wherein the control apparatus is controlled by at least one of: a first control method which comprises controlling the circulation of the first air within the first circulation equipment and the circulation of the second air within the second circulation equipment such that heat of the first air and the second air are exchanged in the heat exchange part; a second control method which further comprises controlling the liquid injection in addition to the first method; a third control method which controls the exchange of the second air with the first air within the third circulation equipment; and a fourth control method which further comprises controlling the direct adjustment of the direct adjusting apparatus in addition to the second control method.

4. The system of claim 3 , wherein at least one of the circulation of the first air within the first circulation equipment, the circulation of the second air within the second circulation equipment, or the exchange of the second air with the first air within the third circulation equipment comprises a circulation by natural convection or a circulation by forced air.

5. The system of claim 4 , wherein the control condition area is defined by the state of second air that is equal to or greater than a first temperature, equal to or less than a second temperature, and equal to or less than a reference dew point.

6. The system of claim 5 , wherein the control apparatus is configured to operate according to the first control method when the received state of the first air corresponds to a first zone that is less than a third temperature, which is less than the first temperature of the psychrometric chart.

7. The system of claim 6 , wherein the control apparatus is configured to operate according to the second control method when the control apparatus determines that the state of the first air corresponds to at least one of:
a second zone that is equal to or greater than the third temperature and equal to or less than the first temperature,
a third zone that is equal to or greater than the first temperature, equal to or less than the second temperature, and equal or less than a first humidity,
a fourth zone that is equal to or greater than the first temperature, equal to or less than the second temperature, greater than a second humidity, and equal to or less than the reference dew point,
a fifth zone that is greater than the reference dew point, equal to or less than a heat exchange efficiency line of the psychrometric chart which indicates an efficiency of heat exchange between the first air and the second air of the heat exchange part, and
a sixth zone that is greater than the second temperature, equal to or less than the reference dew point and equal to or less than a heat exchange efficiency line of the psychrometric chart.

8. The system of claim 5 , wherein the control apparatus is configured to operate according to the third control method when the control apparatus determines that the state of the first air corresponds to a seventh zone within the psychrometric chart matching the control condition area.

9. The system of claim 5 , wherein the control apparatus is configured to operate according to the fourth control method when the control apparatus determines that the state of the first air corresponds to an eighth zone that is outside from the control condition area and is greater than the heat exchange efficiency line of the psychrometric chart which indicates an efficiency of heat exchange between the first air and the second air of the heat exchange part.

10. The system of claim 7 , wherein the first temperature is a range of 17 degrees Celsius to 19 degrees Celsius, the second temperature is a range of 26 degrees Celsius to 28 degrees Celsius, the third temperature is a range of 14 degrees Celsius to 16 degrees Celsius, the first humidity is a range of 19% to 21%, the second humidity is a range between 79% and 81%, and the reference dew point is a range of 20 degrees Celsius to 22 degrees Celsius.

11. The system of claim 1 , wherein the indirect heat exchanger further comprises:
a heat transfer medium disposed between the first heat exchange path and the second heat exchange path, the indirect heat exchanger is configured to transfer the heat between the first air flowing through the first heat exchange path and the second air flowing through the second heat exchange path, and
the vaporization part is further configured to inject the liquid on a surfa

Assignees

• Nhn Entertainment Corp

Inventors

• Kim Joo-Hwan

Classifications

• F24F7/08

  with separate ducts for supplied and exhausted air {with provisions for reversal of the input and output systems} · CPC title

• F24F5/0035

  using evaporation · CPC title

• Y02B30/545

  Cross-Sectional Technologies · mapped topic

• F24F2110/20

  Humidity · CPC title

• F24F2110/10

  Temperature · CPC title