Temperature and humidity independent control air conditioning system and method

Patent metadata

Field	Value
Publication number	US-9618272-B2
Application number	US-201313938559-A
Country	US
Kind code	B2
Filing date	Jul 10, 2013
Priority date	Jul 12, 2012
Publication date	Apr 11, 2017
Grant date	Apr 11, 2017

Abstract

This invention provides a temperature and humidity independent control air conditioning system, comprising a high temperature cooling unit, a low temperature cooling unit, a humidity processing unit, and an indoor unit, wherein the coolant with a first temperature provided by the high temperature cooling unit flows into the indoor unit and then its temperature becomes a second temperature; the coolant with a third temperature provided by the low temperature cooling unit flows into the humidity processing unit; the coolant with the second temperature is divided to the low temperature cooling unit. With this invention, temperature and humidity independent control can be realized with high efficiency.

First claim

The invention claimed is:

1. A temperature and humidity independent control air conditioning system, comprising:
a high temperature cooling unit,
a low temperature cooling unit,
a humidity processing unit, and
an indoor unit, wherein
coolant with a first temperature provided by the high temperature cooling unit, after flowing into the indoor unit, becomes coolant with a second temperature, which flows back into the high temperature cooling unit;
coolant with a third temperature provided by the low temperature cooling unit, after flowing into the humidity processing unit, becomes coolant with a fourth temperature, which flows back into the low temperature cooling unit; and
wherein a portion of the coolant with the second temperature is divided away from flowing back into the high temperature cooling unit and into the low temperature cooling unit to become coolant with a fifth temperature, which flows back into the high temperature cooling unit.

2. The temperature and humidity independent control air conditioning system according to claim 1 , wherein the coolant with the first temperature is divided into the humidity processing unit to become coolant with a sixth temperature, which flows back into the high temperature cooling unit.

3. The temperature and humidity independent control air conditioning system according to claim 1 , wherein the coolant with the second temperature is divided into a condenser of the low temperature cooling unit to become the coolant with the fifth temperature, which flows out of the condenser of the low temperature cooling unit.

4. The temperature and humidity independent control air conditioning system according to claim 1 , wherein the low temperature cooling unit is a water-to-water heat pump.

5. The temperature and humidity independent control air conditioning system according to claim 2 , wherein the humidity processing unit comprises a first coil and a second coil, and the coolant with the first temperature flows into the inlet of the first coil; the coolant with the sixth temperature flows out of the outlet of the first coil; the coolant with the third temperature flows into the inlet of the second coil; the coolant with the fourth temperature flows out of the outlet of the second coil.

6. The temperature and humidity independent control air conditioning system according to claim 5 , the second coil is arranged downstream from the first coil in the flow direction of fresh air or return air which flows into the humidity processing unit.

7. The temperature and humidity independent control air conditioning system according to claim 1 , wherein in a cooling mode, the second temperature is higher than the first temperature, the fourth temperature is higher than the third temperature, and the fifth temperature is higher than the second temperature.

8. The temperature and humidity independent control air conditioning system according to claim 2 , wherein in a cooling mode, the second temperature is higher than the first temperature, the fourth temperature is higher than the third temperature, the fifth temperature is higher than the second temperature, and the sixth temperature is higher than the first temperature.

9. A method of controlling a temperature and humidity independent control air conditioning system according to claim 1 , comprising:
controlling the flow rate of the coolant with the first temperature into the indoor unit and the first temperature, so as to adjust the indoor temperature;
controlling the flow rate of the coolant with the third temperature into the humidity processing unit and the third temperature, so as to adjust an indoor humidity; and
controlling the flow rate of the coolant with the second temperature divided into the low temperature cooling.

10. A temperature and humidity independent control air conditioning system, comprising:
a high temperature cooling unit,
a low temperature cooling unit,
a humidity processing unit, and
an indoor unit, wherein
coolant with a first temperature provided by the high temperature cooling unit, after flowing into the indoor unit, becomes coolant with a second temperature, which flows back into the high temperature cooling unit;
coolant with a third temperature provided by the low temperature cooling unit, after flowing into the humidity processing unit, becomes coolant with a fourth temperature, which flows back into the low temperature cooling unit; and
the coolant with the second temperature is divided into the low temperature cooling unit to become coolant with a fifth temperature, which flows back into the high temperature cooling unit;
wherein the temperature and humidity independent control air conditioning system further comprises a control unit, which communicates with the high temperature cooling unit, the low temperature cooling unit, the humidity processing unit, and the indoor unit, and the control unit regulates the flow rate of the coolant provided by the high temperature cooling unit and the first temperature according to the indoor temperature requirement, and regulates the flow rate of the coolant provided by the low temperature cooling unit and the third temperature according to an indoor humidity requirement.

11. A temperature and humidity independent control air conditioning system, comprising:
a high temperature cooling unit,
a low temperature cooling unit,
a humidity processing unit, and
an indoor unit, wherein
coolant with a first temperature provided by the high temperature cooling unit, after flowing into the indoor unit, becomes coolant with a second temperature, which flows back into the high temperature cooling unit;
coolant with a third temperature provided by the low temperature cooling unit, after flowing into the humidity processing unit, becomes coolant with a fourth temperature, which flows back into the low temperature cooling unit; and
the coolant with the second temperature is divided into the low temperature cooling unit to become coolant with a fifth temperature, which flows back into the high temperature cooling unit;
wherein the coolant with the first temperature is divided into the humidity processing unit to become coolant with a sixth temperature, which flows back into the high temperature cooling unit;
wherein the temperature and humidity independent control air conditioning system further comprises a control unit, which communicates with the high temperature cooling unit, the low temperature cooling unit, the humidity processing unit, and the indoor unit, and the control unit regulates the flow rate of the coolant provided by the high temperature cooling unit and the first temperature according to both the indoor temperature requirement and an indoor humidity requirement, and regulates the flow rate of the coolant provided by the low temperature cooling unit and the third temperature according to the indoor humidity requirement.

12. A temperature and humidity independent control air conditioning system, comprising:
a high temperature cooling unit,
a low temperature cooling unit,
a humidity processing unit, and
an indoor unit, wherein
coolant with a first temperature provided by the high temperature cooling unit, after flowing into the indoor unit, becomes coolant with a second temperature, which flows back into the high temperature cooling unit;
coolant with a third temperature provided by the low temperature cooling unit, after flowing into the humidity processing unit, becomes coolant with a fourth temperature, which flows back into the low temperature cooling unit; and
the coolant with the second temperature is divided into the low temperature cooling unit to become coolant with a fifth temperature, which

Assignees

• Carrier Corp

Inventors

• Kuang Yuhui
• Wang Chungang

Classifications

• F24F11/83

  by controlling the supply of heat-exchange fluids to heat-exchangers · CPC title

• F28D15/00 Primary

  Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls {; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies (F28D17/00, F28D19/00, F28D20/00 take precedence)} · CPC title

• F24F11/008

  Mechanical Engineering · mapped topic

• F24F2011/0075

  Mechanical Engineering · mapped topic

• F24F11/0008 Primary

  for air-humidification (F24F11/30 takes precedence) · CPC title