Drainage system for a dehumidification system

Patent metadata

Field	Value
Publication number	US-10458730-B2
Application number	US-201815875630-A
Country	US
Kind code	B2
Filing date	Jan 19, 2018
Priority date	Jan 19, 2018
Publication date	Oct 29, 2019
Grant date	Oct 29, 2019

Abstract

A dehumidifier drainage system includes a primary drain pan and a secondary drain pan. The primary drain pan is disposed at least partially below an evaporator. The primary drain pan includes one or more raised ribs that are configured to at least partially block air flowing across the primary drain pan as the air flows into the evaporator. The secondary drain pan is disposed at least partially between the evaporator and the primary drain pan. The secondary drain pan includes one or more downspouts. Each downspout is configured to funnel water condensed from the evaporator into an area of the primary drain pan that is at least partially surrounded by one of the raised ribs.

First claim

What is claimed is:

1. A dehumidification system, comprising:
a heat exchanger;
an evaporator positioned next to the heat exchanger;
a primary drain pan disposed at least partially below the heat exchanger and at least partially below the evaporator, the primary drain pan comprising one or more raised ribs that are disposed on a bottom surface of the primary drain pan and extend upwards toward the evaporator from the bottom surface, the one or more raised ribs configured to at least partially block air flowing across the primary drain pan as the air flows from the heat exchanger into the evaporator;
a secondary drain pan disposed at least partially between the evaporator and the primary drain pan, the secondary drain pan comprising a plurality of downspouts, each downspout comprising an end that is contoured and is positioned proximate to one of the raised ribs, each downspout configured to funnel water condensed from the evaporator into an area of the primary drain pan that is at least partially surrounded by one of the raised ribs;
a condenser disposed at least partially below the primary drain pan; and
an impeller disposed at least partially below the primary drain pan and adjacent to the condenser.

2. The dehumidification system of claim 1 , wherein each particular one of the one or more secondary drain pans further comprises:
a second bottom, the second bottom positioned above and coupled to the downspout of the particular secondary drain pan;
one or more center ribs;
one or more intermediate ribs; and
one or more back ribs.

3. The dehumidification system of claim 2 , wherein the second bottom comprises:
a second drainage outlet coupled to the downspout; and
a plurality of second bottom panels, wherein the plurality of second bottom panels are sloped and adjoined to allow the water condensed from the evaporator to flow to the second drainage outlet.

4. The dehumidification system of claim 3 , wherein the downspout of each of the one or more secondary drain pans comprises a first end and a second end, the first end being coupled to the second drainage outlet, the second end being positioned proximate to one of the one or more raised ribs.

5. The dehumidification system of claim 4 , wherein the second end comprises a contour that is at an angle relative to a plane corresponding to the second end.

6. The dehumidification system of claim 2 , wherein:
the one or more center ribs are triangular in shape, and
the one or more intermediate ribs and the one or more back ribs are rectangular in shape.

7. A dehumidification system, comprising:
an evaporator;
a primary drain pan disposed at least partially below the evaporator, the primary drain pan comprising one or more raised ribs, the one or more raised ribs configured to at least partially block air flowing across the primary drain pan as the air flows into the evaporator; and
one or more secondary drain pans disposed at least partially between the evaporator and the primary drain pan, each of the one or more secondary drain pans comprising a downspout configured to funnel water condensed from the evaporator into an area of the primary drain pan that is at least partially surrounded by one of the raised ribs.

8. The dehumidification system of claim 7 , wherein the primary drain pan further comprises:
a first bottom, wherein the one or more raised ribs are disposed on the first bottom and extend upwardly toward the evaporator from the first bottom;
a front panel extending upwardly from the first bottom;
a back panel extending from the first bottom; and
a plurality of side panels extending upwardly from the first bottom.

9. The dehumidification system of claim 8 , wherein the first bottom comprises:
one or more first bottom panels, wherein each of the one or more raised ribs is disposed on one of the one or more first bottom panels; and
a first drainage outlet disposed on one of the one or more first bottom panels.

10. The dehumidification system of claim 9 , wherein the one or more first bottom panels and the back panel are sloped at different angles to allow water to flow to the first drainage outlet.

11. The dehumidification system of claim 7 , wherein the one or more raised ribs are U-shaped ribs.

12. A dehumidifier drainage system, comprising:
a primary drain pan disposed at least partially below an evaporator, the primary drain pan comprising one or more raised ribs, the one or more raised ribs configured to at least partially block air flowing across the primary drain pan as the air flows into the evaporator; and
a secondary drain pan disposed at least partially between the evaporator and the primary drain pan, the secondary drain pan comprising one or more downspouts, each downspout configured to funnel water condensed from the evaporator into an area of the primary drain pan that is at least partially surrounded by one of the raised ribs.

13. The dehumidifier drainage system of claim 12 , wherein the primary drain pan further comprises:
a first bottom, wherein the one or more raised ribs are disposed on the first bottom and extend upwardly toward the evaporator from the first bottom;
a front panel extending upwardly from the first bottom;
a back panel extending from the first bottom; and
a plurality of side panels extending upwardly from the first bottom.

14. The dehumidifier drainage system of claim 13 , wherein the first bottom comprises:
one or more first bottom panels, wherein each of the one or more raised ribs is disposed on one of the one or more first bottom panels; and
a first drainage outlet disposed on one of the one or more first bottom panels.

15. The dehumidifier drainage system of claim 13 , wherein the one or more first bottom panels and the back panel are sloped at different angles to allow water to flow to the first drainage outlet.

16. The dehumidifier drainage system of claim 12 , wherein the one or more raised ribs are U-shaped ribs.

17. The dehumidifier drainage system of claim 12 , wherein the secondary drain pan further comprises:
a second bottom, the second bottom positioned above and coupled to the downspouts of the secondary drain pan;
one or more center ribs;
one or more intermediate ribs; and
one or more back ribs.

18. The dehumidifier drainage system of claim 17 , wherein the second bottom comprises one or more second drainage outlets coupled to the one or more downspouts.

19. The dehumidifier drainage system of claim 18 , wherein each of the one or more downspout comprises a first end and a second end, the first end being coupled to the one of the one or more second drainage outlet, the second end being positioned proximate to one of the one or more raised ribs.

20. The dehumidifier drainage system of claim 19 , wherein the second end comprises a contour that is at an angle relative to a plane corresponding to the end.

Assignees

• Therma Stor Llc

Inventors

• Lorang Grant M
• Sloan Scott E

Classifications

• F24F2003/1446

  by condensing · CPC title

• F24F3/14

  by humidification; by dehumidification · CPC title

• F24F13/222

  for evacuating condensate · CPC title

• F24F1/02 Primary

  Self-contained room units for air-conditioning, i.e. with all apparatus for treatment installed in a common casing · CPC title

• F28F17/005 Primary

  Means for draining condensates from heat exchangers, e.g. from evaporators (F28B9/08 takes precedence) · CPC title