Dehumidification system

Patent metadata

Field	Value
Publication number	US-9815020-B2
Application number	US-201313969620-A
Country	US
Kind code	B2
Filing date	Aug 19, 2013
Priority date	Dec 20, 2012
Publication date	Nov 14, 2017
Grant date	Nov 14, 2017

Abstract

Provided is a dehumidification system including an air directing device and an adsorbent hollow fiber module. The air directing device is used for conveying air. The adsorbent hollow fiber module can adsorb the moisture in the air as the air passes through the adsorbent hollow fiber module. The adsorbent hollow fiber module includes at least one adsorbent hollow fiber. The adsorbent hollow fiber has a tubular body having a first end and a second end and a channel disposed in the tubular body and extending from the first end to the second end.

First claim

What is claimed is:

1. A dehumidification system, comprising:
an air directing device for conveying air, and
an adsorbent hollow fiber module for adsorbing moisture in the air as the air passes through the adsorbent hollow fiber module, wherein the adsorbent hollow fiber module comprises at least one adsorbent hollow fiber, wherein the adsorbent hollow fiber is a two-layer structure or a multi-layer structure comprising at least a first layer and a second layer, and the adsorbent hollow fiber comprises:
a tubular body having a first end and a second end, and
a channel disposed in the tubular body and extending from the first end to the second end, wherein the channel comprises a winding channel or a spiral channel;
wherein the tubular body has an outer surface which is straight in the longitudinal direction.

2. The dehumidification system of claim 1 , wherein the adsorbent hollow fiber module comprises an adsorbent hollow fiber bundle composed of a plurality of the adsorbent hollow fibers.

3. The dehumidification system of claim 1 , wherein the adsorbent hollow fiber comprises a polymer material and an adsorbent material.

4. The dehumidification system of claim 3 , wherein the polymer material comprises polyethersulfone (PESF), polyphenylsulfone (PPSU), or polyimide (PI).

5. The dehumidification system of claim 3 , wherein the adsorbent material comprises type A zeolite, type X zeolite, type Y zeolite, silica gel, carbon molecular sieve, high silica molecular sieve, activated carbon, or a combination thereof.

6. The dehumidification system of claim 3 , wherein the adsorbent hollow fiber further comprises a conductive material.

7. The dehumidification system of claim 1 , wherein the first layer and the second layer comprise different adsorbent materials.

8. The dehumidification system of claim 1 , wherein the first layer comprises an adsorbent material and the second layer comprises a conductive material.

9. The dehumidification system of claim 8 , wherein the first layer is disposed inside of the second layer.

10. The dehumidification system of claim 8 , wherein the first layer is disposed outside of the second layer.

11. The dehumidification system of claim 6 , wherein the conductive material comprises activated carbon, graphite, carbon black, metal powder, metal oxide, or a combination thereof.

12. The dehumidification system of claim 6 , wherein the conductive material has a positive temperature coefficient of resistance (PTC).

13. The dehumidification system of claim 12 , further comprising a power source for directing a current through the adsorbent hollow fiber.

14. A dehumidification system, comprising:
an air directing device for conveying air, and
an adsorbent hollow fiber module for adsorbing moisture in the air as the air passes through the adsorbent hollow fiber module, wherein the adsorbent hollow fiber module comprises at least one adsorbent hollow fiber wherein the adsorbent hollow fiber is a two-layer structure or a multi-layer structure comprising at least a first layer and a second layer, and the adsorbent hollow fiber comprises:
a tubular body having a first end and a second end,
a channel disposed in the tubular body and extending from the first end to the second end, wherein the channel comprises a winding channel or a spiral channel; and
a refrigeration unit for condensing the moisture desorbed from the adsorbent hollow fiber into liquid water.

15. The dehumidification system of claim 1 , further comprising a humidity sensor for detecting an ambient humidity.

16. A dehumidification system, comprising:
an air directing device for conveying air, and
an adsorbent hollow fiber module for adsorbing moisture in the air as the air passes through the adsorbent hollow fiber module, wherein the adsorbent hollow fiber module comprises at least one adsorbent hollow fiber, wherein the adsorbent hollow fiber is a two-layer structure or a multi-layer structure comprising at least a first layer and a second layer, and the adsorbent hollow fiber comprises:
a tubular body having a first end and a second end,
a channel disposed in the tubular body and extending from the first end to the second end, wherein the channel comprises a winding channel or a spiral channel;
a first humidity sensor disposed on the air directing device for detecting an humidity of the air passing through the air directing device;
a housing having a first opening and a second opening, the adsorbent hollow fiber module disposed in the housing, the air directing device disposed adjacent to the first opening, and the air entering or leaving the housing via the first opening or the second opening;
a refrigeration unit disposed in the housing for condensing the moisture desorbed from the adsorbent hollow fiber into liquid water;
a water tank disposed in the housing for storing the liquid water;
a second humidity sensor disposed in the housing and positioned downstream to the adsorbent hollow fiber module for detecting a humidity of the air passing through or to be passed through the adsorbent hollow fiber module; and
a temperature sensor disposed on the adsorbent hollow fiber module for detecting a temperature of the adsorbent hollow fiber module;
wherein the air directing device is a first air directing device for passing the air through the adsorbent hollow fiber module.

17. The dehumidification system of claim 16 , further comprising a second air directing device disposed adjacent to the second opening for conveying the air into or out from the housing.

18. The dehumidification system of claim 16 , further comprising a power source for directing a current through the adsorbent hollow fiber.

19. The dehumidification system of claim 16 , further comprising a heating device for desorbing the moisture adsorbed on the adsorbent hollow fiber.

Assignees

• Ind Tech Res Inst
• Industrial Tech Reserach Institute

Inventors

• Tai Chin-Chih
• Wang Yun-Hsin
• Lee Yi-Shan
• Lin Tzer-Shen

Classifications

• B01D53/0407

  Constructional details of adsorbing systems · CPC title

• B01D53/28 Primary

  Selection of materials for use as drying agents · CPC title

• B01D2253/108

  Zeolites · CPC title

• B01D53/261

  by adsorption · CPC title

• B01D2257/80

  Water · CPC title