US2728206A - System for handling condensate - Google Patents
System for handling condensate Download PDFInfo
- Publication number
- US2728206A US2728206A US257856A US25785651A US2728206A US 2728206 A US2728206 A US 2728206A US 257856 A US257856 A US 257856A US 25785651 A US25785651 A US 25785651A US 2728206 A US2728206 A US 2728206A
- Authority
- US
- United States
- Prior art keywords
- condensate
- chilled water
- pump
- air conditioning
- handling
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 16
- 238000004378 air conditioning Methods 0.000 description 9
- 239000002826 coolant Substances 0.000 description 2
- 241001379910 Ephemera danica Species 0.000 description 1
- 230000003466 anti-cipated effect Effects 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/22—Means for preventing condensation or evacuating condensate
Definitions
- the present invention relates to improvements in a system for the automatic return of condensate, preferably from a plurality of air conditioning units, or similar apparatus, through which chilled water is being circulated and resulting in condensation being formed.
- the condensate from each air conditioning unit is preferably discharged into the circulating system for the chilled water. This avoids a sewer connection for each unit, reduces piping to a minimum and permits the use of the condensate for make-up water. It is immaterial, according to the present invention, whether the condensate is being discharged into the chilled water line flowing to or returning from the air conditioning unit.
- One of the objects of the invention is to provide a system of handling condensate in an air conditioning system in which the condensate is discharged into the chilled water circulating system.
- Another object is to provide a system of condensate handling in air conditioning and other similar apparatus in which the condensate is periodically and automatically discharged into the circulating system of the chilled water.
- Fig. I is a schematic drawing of an air conditioning unit embodying one form of the present invention.
- Fig. II is a view similar to Fig. I of another form of the invention.
- Fig. III is a schematic drawing of a system involving the present invention.
- the air conditioning unit has an air inlet 12 from which the entering air passes up through the filter 14.
- the fan 16 has a suitable drive shaft 18 upon which the fan elements are mounted. After leaving the fan 16, the air passes through the coil 20 and leaves the unit 10 by the outlet 22.
- Chilled water flows to the coil 20 through the pipe 24 and it is returned to the water chiller 25 by the return pipe 26.
- a ball or other suitable valve causes the condensate to collect in the accumulator 30 until the ball is floated from the seat 32 whereupon the pump 34 discharges the condensate from the accumulator 30 into the chilled water return line 26, through the line 36 and past the check valve 38.
- the pump 34 is driven by a belt 40 passing over a suitable pulley on the drive shaft 18.
- the condensate discharged into the chilled water return line 26 will supply any make-up water required. Any surplus will be elevated in the stand pipe 44 and discharged into the drain 46 which is preferably common to all the units 10 of the system.
- a venturi 48 in the chilled water return line 26 performs the function of the pump 30 of Fig. I.
- Condensate from the unit 10 is discharged by the line 50 into the screen 52 in the upper end of the U-shaped stand pipe accumulator and trap 30'.
- the reduced pressure produced by the venturi 48 at 52 will maintain the liquid levels indicated to seal against the entrance of air into the return line 26'.
- the sensitive ball valve 54 permits the flow of condensate into the line 26' as it flows into the accumulator 30' yet prevents leakage which might result from a back pressure.
- the principles of the invention have application to refrigerating systems in which the cooling medium is other than chilled water. With a medium of a different substance than water, separation of the condensate from the cooling medium would be necessary at a central point.
- a chilled water air conditioning apparatus comprising a cabinet, a body of cooling coils disposed in said cabinet, inlet and return conduits for conducting the chilled water to and from said coils, said body being inclined downwardly from one side of said cabinet toward the other side of said cabinet, means located below said body adjacent said other side of said cabinet for gathering condensate dripping from said coils, a valved accumulator disposed below said means, a pump having inlet connection with said accumulator disposed below said accumulator adjacent said other side of said cabinet and having a driven shaft, an outlet connection extending from said pump and discharging condensate into one of said conduits, an air circulating fan disposed in a lower portion of said cabinet adjacent said one side thereof and beside said pump and having a driven shaft parallel to said pump shaft, and a drive belt drivingly interconnecting said fan shaft and pump shaft.
Description
D 7. 1955 A. B. NEWTON ET AL 2,728,266
SYSTEM FOR HANDLING CONDENSATE Filed NOV. 25, 1951 Nam.
Fill- H- INVENTORS ALWIN B- NEWTON 11 11: I- RONALD s DRAKE ATTORNEY United States Patent SYSTEM FOR HANDLING CONDENSATE Alwin B. Newton and Ronald S. Drake, Jackson, Mich assignors to Acme Industries, Inc., Jackson, Mich, a corporation of Michigan Application November 23, 1951, Serial No. 257,856
1 Claim. (Cl. 62-140) The present invention relates to improvements in a system for the automatic return of condensate, preferably from a plurality of air conditioning units, or similar apparatus, through which chilled water is being circulated and resulting in condensation being formed.
It has been the practice in the handling of condensate from individual room air conditioning units to either pipe each unit to a sewer connection or to provide each unit with a receptacle into which the condensate is directed and accumulated and then periodically emptied.
According to the present invention, the condensate from each air conditioning unit is preferably discharged into the circulating system for the chilled water. This avoids a sewer connection for each unit, reduces piping to a minimum and permits the use of the condensate for make-up water. It is immaterial, according to the present invention, whether the condensate is being discharged into the chilled water line flowing to or returning from the air conditioning unit.
One of the objects of the invention is to provide a system of handling condensate in an air conditioning system in which the condensate is discharged into the chilled water circulating system.
Another object is to provide a system of condensate handling in air conditioning and other similar apparatus in which the condensate is periodically and automatically discharged into the circulating system of the chilled water.
These and other objects and advantages residing in the construction, combination and arrangement of parts and the resulting system will more fully appear from a consideration of the following specification with the appended claim.
In the drawings,
Fig. I is a schematic drawing of an air conditioning unit embodying one form of the present invention,
Fig. II is a view similar to Fig. I of another form of the invention, and
Fig. III is a schematic drawing of a system involving the present invention.
Referring to Fig. I, the air conditioning unit has an air inlet 12 from which the entering air passes up through the filter 14. The fan 16 has a suitable drive shaft 18 upon which the fan elements are mounted. After leaving the fan 16, the air passes through the coil 20 and leaves the unit 10 by the outlet 22.
Chilled water flows to the coil 20 through the pipe 24 and it is returned to the water chiller 25 by the return pipe 26.
Condensate formed upon the coil 20 drips into the inclined pan 28 and runs into the accumulator 30. A ball or other suitable valve causes the condensate to collect in the accumulator 30 until the ball is floated from the seat 32 whereupon the pump 34 discharges the condensate from the accumulator 30 into the chilled water return line 26, through the line 36 and past the check valve 38. As shown, the pump 34 is driven by a belt 40 passing over a suitable pulley on the drive shaft 18. A suitable electric motor 42 directly connected to the shaft 18 and located on the back side of the fan 16 functions to drive both the fan 16 and the pump 34.
The condensate discharged into the chilled water return line 26 will supply any make-up water required. Any surplus will be elevated in the stand pipe 44 and discharged into the drain 46 which is preferably common to all the units 10 of the system.
In the form shown in Fig. II, a venturi 48 in the chilled water return line 26 performs the function of the pump 30 of Fig. I. Condensate from the unit 10 is discharged by the line 50 into the screen 52 in the upper end of the U-shaped stand pipe accumulator and trap 30'. The reduced pressure produced by the venturi 48 at 52 will maintain the liquid levels indicated to seal against the entrance of air into the return line 26'. The sensitive ball valve 54 permits the flow of condensate into the line 26' as it flows into the accumulator 30' yet prevents leakage which might result from a back pressure.
It is anticipated that the principles of the invention have application to refrigerating systems in which the cooling medium is other than chilled water. With a medium of a different substance than water, separation of the condensate from the cooling medium would be necessary at a central point.
Having thus described our invention, what we wish to claim as new and desire to cover by Letters Patent is:
A chilled water air conditioning apparatus comprising a cabinet, a body of cooling coils disposed in said cabinet, inlet and return conduits for conducting the chilled water to and from said coils, said body being inclined downwardly from one side of said cabinet toward the other side of said cabinet, means located below said body adjacent said other side of said cabinet for gathering condensate dripping from said coils, a valved accumulator disposed below said means, a pump having inlet connection with said accumulator disposed below said accumulator adjacent said other side of said cabinet and having a driven shaft, an outlet connection extending from said pump and discharging condensate into one of said conduits, an air circulating fan disposed in a lower portion of said cabinet adjacent said one side thereof and beside said pump and having a driven shaft parallel to said pump shaft, and a drive belt drivingly interconnecting said fan shaft and pump shaft.
References Cited in the file of this patent UNITED STATES PATENTS 1,662,806 Hilger Mar. 13, 1928 1,954,455 Morse Apr. 10, 1934 2,082,441 Child June 1, 1937 2,167,878 Crawford Aug. 1, 1939
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US257856A US2728206A (en) | 1951-11-23 | 1951-11-23 | System for handling condensate |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US257856A US2728206A (en) | 1951-11-23 | 1951-11-23 | System for handling condensate |
Publications (1)
Publication Number | Publication Date |
---|---|
US2728206A true US2728206A (en) | 1955-12-27 |
Family
ID=22978061
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US257856A Expired - Lifetime US2728206A (en) | 1951-11-23 | 1951-11-23 | System for handling condensate |
Country Status (1)
Country | Link |
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US (1) | US2728206A (en) |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2797559A (en) * | 1955-11-23 | 1957-07-02 | Gen Electric | Air conditioning apparatus |
US3210956A (en) * | 1963-08-07 | 1965-10-12 | Fleet Air Mfg Inc | Evaporator unit for vehicle air conditioning systems |
US3373578A (en) * | 1967-01-31 | 1968-03-19 | Fedders Corp | Condensate drain tube |
US3888090A (en) * | 1973-12-26 | 1975-06-10 | Repco Products Corp | Air conditioning apparatus |
AT400883B (en) * | 1990-10-19 | 1996-04-25 | Vaillant Gmbh | Condensate dissipation apparatus |
US6584795B1 (en) * | 2002-04-30 | 2003-07-01 | Deere & Company | Condensate drain for an air conditioning system |
US6877550B2 (en) | 2000-07-21 | 2005-04-12 | Denso Corporation | Vehicle air conditioner |
US20070144724A1 (en) * | 1994-09-22 | 2007-06-28 | Yuichi Shirota | Automotive air conditioner |
US8683821B2 (en) | 2010-04-15 | 2014-04-01 | Franklin Electric Company, Inc. | Sediment trap system and method |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1662806A (en) * | 1926-04-30 | 1928-03-13 | Hilger George | Refrigeration system |
US1954455A (en) * | 1932-01-11 | 1934-04-10 | American Blower Corp | Air conditioning apparatus |
US2082441A (en) * | 1934-06-08 | 1937-06-01 | Air Devices Corp | Air conditioner |
US2167878A (en) * | 1936-02-19 | 1939-08-01 | Crawford Robert Brace | Air conditioning system |
-
1951
- 1951-11-23 US US257856A patent/US2728206A/en not_active Expired - Lifetime
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1662806A (en) * | 1926-04-30 | 1928-03-13 | Hilger George | Refrigeration system |
US1954455A (en) * | 1932-01-11 | 1934-04-10 | American Blower Corp | Air conditioning apparatus |
US2082441A (en) * | 1934-06-08 | 1937-06-01 | Air Devices Corp | Air conditioner |
US2167878A (en) * | 1936-02-19 | 1939-08-01 | Crawford Robert Brace | Air conditioning system |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2797559A (en) * | 1955-11-23 | 1957-07-02 | Gen Electric | Air conditioning apparatus |
US3210956A (en) * | 1963-08-07 | 1965-10-12 | Fleet Air Mfg Inc | Evaporator unit for vehicle air conditioning systems |
US3373578A (en) * | 1967-01-31 | 1968-03-19 | Fedders Corp | Condensate drain tube |
US3888090A (en) * | 1973-12-26 | 1975-06-10 | Repco Products Corp | Air conditioning apparatus |
AT400883B (en) * | 1990-10-19 | 1996-04-25 | Vaillant Gmbh | Condensate dissipation apparatus |
US20070144724A1 (en) * | 1994-09-22 | 2007-06-28 | Yuichi Shirota | Automotive air conditioner |
US20070144725A1 (en) * | 1994-09-22 | 2007-06-28 | Yuichi Shirota | Automotive air conditioner |
US6877550B2 (en) | 2000-07-21 | 2005-04-12 | Denso Corporation | Vehicle air conditioner |
US6584795B1 (en) * | 2002-04-30 | 2003-07-01 | Deere & Company | Condensate drain for an air conditioning system |
US8683821B2 (en) | 2010-04-15 | 2014-04-01 | Franklin Electric Company, Inc. | Sediment trap system and method |
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