CA1242953A - Condensate discharge device for combustion apparatus - Google Patents
Condensate discharge device for combustion apparatusInfo
- Publication number
- CA1242953A CA1242953A CA000482080A CA482080A CA1242953A CA 1242953 A CA1242953 A CA 1242953A CA 000482080 A CA000482080 A CA 000482080A CA 482080 A CA482080 A CA 482080A CA 1242953 A CA1242953 A CA 1242953A
- Authority
- CA
- Canada
- Prior art keywords
- housing
- condensate
- combustion
- seat
- outlet tube
- 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
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H8/00—Fluid heaters characterised by means for extracting latent heat from flue gases by means of condensation
- F24H8/006—Means for removing condensate from the heater
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/005—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for draining or otherwise eliminating condensates or moisture accumulating in the apparatus
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16T—STEAM TRAPS OR LIKE APPARATUS FOR DRAINING-OFF LIQUIDS FROM ENCLOSURES PREDOMINANTLY CONTAINING GASES OR VAPOURS
- F16T1/00—Steam traps or like apparatus for draining-off liquids from enclosures predominantly containing gases or vapours, e.g. gas lines, steam lines, containers
- F16T1/20—Steam traps or like apparatus for draining-off liquids from enclosures predominantly containing gases or vapours, e.g. gas lines, steam lines, containers with valves controlled by floats
- F16T1/22—Steam traps or like apparatus for draining-off liquids from enclosures predominantly containing gases or vapours, e.g. gas lines, steam lines, containers with valves controlled by floats of closed-hollow-body type
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Float Valves (AREA)
- Incineration Of Waste (AREA)
- Self-Closing Valves And Venting Or Aerating Valves (AREA)
Abstract
CONDENSATE DISCHARGE DEVICE FOR
COMBUSTION APPARATUS
Abstract of the Disclosure A condensate discharge device for combustion apparatus which automatically drains condensate from the combustion chamber or flue while preventing escape of gaseous products of combustion. The device includes a housing having an inlet in its upper end connected to the combustion conduit containing the waste gases of combustion. An outlet tube is disposed in an opening in the lower end of the housing in alignment with the inlet and the upper end of the outlet tube projects a substantial distance above the lower surface of the housing and provides a seat. A hollow plastic ball rests on the seat to prevent escape of gases from the housing. Condensate generated by cooling of the com-bustion gases flows into the housing and when the con-densate accumulates to a level above the seat, the ball will float to permit the discharge of the condensate while preventing discharge of the gaseous products of combustion.
COMBUSTION APPARATUS
Abstract of the Disclosure A condensate discharge device for combustion apparatus which automatically drains condensate from the combustion chamber or flue while preventing escape of gaseous products of combustion. The device includes a housing having an inlet in its upper end connected to the combustion conduit containing the waste gases of combustion. An outlet tube is disposed in an opening in the lower end of the housing in alignment with the inlet and the upper end of the outlet tube projects a substantial distance above the lower surface of the housing and provides a seat. A hollow plastic ball rests on the seat to prevent escape of gases from the housing. Condensate generated by cooling of the com-bustion gases flows into the housing and when the con-densate accumulates to a level above the seat, the ball will float to permit the discharge of the condensate while preventing discharge of the gaseous products of combustion.
Description
2~53 CONDENSATE DISCHARGE DEVICE FOR
COMBUSTION APPARATUS
l Background of the Invention In high energy efficient water heaters and furnaces, waste gases o combustion are passed in heat transfer relation with water or air to extract heat from the combustion gases. Cooling of the combustion gases through heat transfer results in the production of substatial quantities of condensate and it is neces-sary to discharge the condensate without allowing escape of the combustion gases into the surrounding building.
In the past, various types of condensate discharge devices have been employed in steam or com-h pressed air systems to permit the discharge of conden-sate while preventing escape of the gas. One form of condensate discharge device, as used in the past has been an S-trap. While devices of this type are effec-tive to discharge condensate without permitting the gas to enter the environment, foreign materials or contam-inants tend to collect in the trap and eventually clog the line and prevent proper operation.
Other types of condensate discharge devices are cornplicated structures requiring numerous moving parts which can be subject to corrosion by contarninates in the waste gas.
Summary of the Invention The invention is directed to an improved condensate discharge device for a combustion apparatus which automatically drains condensate ~rom the combus-tion system, while preventing escape of gaseous pro- f ducts of coml>ustion into the erlvirorlln~llt. i~
In accordallce with the iovelltion, tlle ~levice inc~lldes a housill(l having all inLet in its u~ r ~nd wl~ich i~ corlnectc~l ~r~ c l~w~ I ~nd ol 1 ~Ic ~ omhu-t i ~n ~' ~\
~2~2953 1 system or conduit. An outlet tube is mounted within an opening in the lower end of the housing in alignment with the inlet, and the upper end of the tube projects upwardly from the lower surface of the housing to provide a seat. Mounted on the seat is a hollow plastic ball which prevents discharge of gas through the outlet.
Condensate generated by cooling of the com-' bustion gases in the combustion system will flow through the inlet into the housing and when the conden-sate accumulates to a level above the seat, the ball will float to pennit the discharge of the condensate while preventing the discharge of the waste gases of ; combustion.
The condensate discharge~device of the invention is of simple and inexpensive construction having only a single moving part, which is the float ball, and no adjustment is required for its operation.
The housing, outlet tube and ball are prefer-ably formed of plastic material so that the entire unit ~ 20 is non-corrosive.
; The space between the upper end of the outlet tube and the lower end of the housing defines a sump wherein contaminants are collected, thereby preventing the contaminants from accumulating on the valve seat and insuring proper sealing o~ the ball valve to the seat.
nue to the design of the unit, the ball is self-centering, and after discharge of the accumulated condensate, the ball will automatically reseat itself vn the upper end of the outlet tube.
~ Other objects and advantages will appedr in - the course of the following descripti-)n.
Descriptiorl of the l)rawin-~s __ _ The drawir~gs illustrate the bcst ~nc)cic pre~sently contempLated of ~arryinc~ out the invention.
'' . ,,- , :
, :
~2~2~53
COMBUSTION APPARATUS
l Background of the Invention In high energy efficient water heaters and furnaces, waste gases o combustion are passed in heat transfer relation with water or air to extract heat from the combustion gases. Cooling of the combustion gases through heat transfer results in the production of substatial quantities of condensate and it is neces-sary to discharge the condensate without allowing escape of the combustion gases into the surrounding building.
In the past, various types of condensate discharge devices have been employed in steam or com-h pressed air systems to permit the discharge of conden-sate while preventing escape of the gas. One form of condensate discharge device, as used in the past has been an S-trap. While devices of this type are effec-tive to discharge condensate without permitting the gas to enter the environment, foreign materials or contam-inants tend to collect in the trap and eventually clog the line and prevent proper operation.
Other types of condensate discharge devices are cornplicated structures requiring numerous moving parts which can be subject to corrosion by contarninates in the waste gas.
Summary of the Invention The invention is directed to an improved condensate discharge device for a combustion apparatus which automatically drains condensate ~rom the combus-tion system, while preventing escape of gaseous pro- f ducts of coml>ustion into the erlvirorlln~llt. i~
In accordallce with the iovelltion, tlle ~levice inc~lldes a housill(l having all inLet in its u~ r ~nd wl~ich i~ corlnectc~l ~r~ c l~w~ I ~nd ol 1 ~Ic ~ omhu-t i ~n ~' ~\
~2~2953 1 system or conduit. An outlet tube is mounted within an opening in the lower end of the housing in alignment with the inlet, and the upper end of the tube projects upwardly from the lower surface of the housing to provide a seat. Mounted on the seat is a hollow plastic ball which prevents discharge of gas through the outlet.
Condensate generated by cooling of the com-' bustion gases in the combustion system will flow through the inlet into the housing and when the conden-sate accumulates to a level above the seat, the ball will float to pennit the discharge of the condensate while preventing the discharge of the waste gases of ; combustion.
The condensate discharge~device of the invention is of simple and inexpensive construction having only a single moving part, which is the float ball, and no adjustment is required for its operation.
The housing, outlet tube and ball are prefer-ably formed of plastic material so that the entire unit ~ 20 is non-corrosive.
; The space between the upper end of the outlet tube and the lower end of the housing defines a sump wherein contaminants are collected, thereby preventing the contaminants from accumulating on the valve seat and insuring proper sealing o~ the ball valve to the seat.
nue to the design of the unit, the ball is self-centering, and after discharge of the accumulated condensate, the ball will automatically reseat itself vn the upper end of the outlet tube.
~ Other objects and advantages will appedr in - the course of the following descripti-)n.
Descriptiorl of the l)rawin-~s __ _ The drawir~gs illustrate the bcst ~nc)cic pre~sently contempLated of ~arryinc~ out the invention.
'' . ,,- , :
, :
~2~2~53
-3-1 In the drawings:
Fig. 1 is a vertical section of the condensate discharge device of the invention as associated with a combustion system; and ~ ig 2 is a line taken along line 2-2 of Fig. 1.
Description of the Illustrated Embodiment The drawings illustrate a condensate discharge device 1 which is connected to a conduit 2 containing waste gases of combustion. The conduit 2 can take the form of a combustion chamber, heat ex-changer, flue or the like, through which the waste gases of combustion are passed to the atmosphere.
A nipple 3 connects the lower end of the conduit 2 to the device 1 and condensate generated by cooling of the waste gases in conduit 2 will flow ` through nipple 3 into the device 1.
The discharge device l includes a cup-shaped housing 4 having an open end which is enclosed by a plug 5 which is bonded to the open end of the housing by an adhesive or the like. Plug 5 is provided with a threaded opening 6 which receives the lower end of nipple 3.
Mounted within an opening in the lower end of housing 4 is a generally L-shaped outlet tube 7. The inner end of tube 7 projects a substantial distance above the lower surface 8 of housing 4 and defines a seat 9. A spherical ~loat 10 normally rests on seat 9 and prevents the discharge of gases from housing l to the exterior. ~all 10 is hollow and is preferably ~ formed of plastic material, having a speci~ic gravity - less than 1.0, so that as con~iellsate accumulates within the housing 4, the ball will ~loat on the condensate to open the seat g and pl-~rmit the conriensate to drain through the outlet tube. In practice, the ball is ~ ' ~ .
::
.
~2~Z953 1 provided with a specific gravity so that it will float to open the valve seat when the condensate has accum-ulated to a level about 1/4 inch above the seat 9.
The space between seat 9 and the lower end 8 of housing 4 defines a reservoir or sump 11 and contam-inates in the condensate will be collected in sump 11 and thus will not accumulate on the seat 9 to distrupt proper seating of the ball on the seat.
All of the components of the discharge device, including the housing 4, outlet tube 7, ball 10 and plug 5 are preferably formed of plastic material so that the entire unit is non-corrosive. The device is of simple and inexpensive construction, being gravity actuatedj and includes only one moving part which is - 15 the spherical float or ball. Furthermore, the device is operable without adjustment.
The hollow plastic ball being light in weight provides improved response to accumulated condensate.
The in-line construction of the inlet and outlet facilitates plastic molding and the incoming condensate entering the housing through nipple 3 tends to flush and rotate the ball, thereby cleaning the ball and removing contamination to insure proper seating of the ball on the seat 9. As a further advantage, the incoming condensate is deflected outwardly by the ball and is directed toward the sump 11, thereby providing some agitation of the condensate in the sump. Agita-tion of the condensate results in some o~ the contam-inants in the sump being suspended in the liquid and c~r~ied out throuyh the outlet tul-e.
, ,~ , ~ ' - .
.
~Z42~S3 _.5_ / Various modes of carrying out the invention are contemplated as being within the scope of the following claims particularly pointing out and distinctly claiming the subject matter which is S regarded as the inventionO
Fig. 1 is a vertical section of the condensate discharge device of the invention as associated with a combustion system; and ~ ig 2 is a line taken along line 2-2 of Fig. 1.
Description of the Illustrated Embodiment The drawings illustrate a condensate discharge device 1 which is connected to a conduit 2 containing waste gases of combustion. The conduit 2 can take the form of a combustion chamber, heat ex-changer, flue or the like, through which the waste gases of combustion are passed to the atmosphere.
A nipple 3 connects the lower end of the conduit 2 to the device 1 and condensate generated by cooling of the waste gases in conduit 2 will flow ` through nipple 3 into the device 1.
The discharge device l includes a cup-shaped housing 4 having an open end which is enclosed by a plug 5 which is bonded to the open end of the housing by an adhesive or the like. Plug 5 is provided with a threaded opening 6 which receives the lower end of nipple 3.
Mounted within an opening in the lower end of housing 4 is a generally L-shaped outlet tube 7. The inner end of tube 7 projects a substantial distance above the lower surface 8 of housing 4 and defines a seat 9. A spherical ~loat 10 normally rests on seat 9 and prevents the discharge of gases from housing l to the exterior. ~all 10 is hollow and is preferably ~ formed of plastic material, having a speci~ic gravity - less than 1.0, so that as con~iellsate accumulates within the housing 4, the ball will ~loat on the condensate to open the seat g and pl-~rmit the conriensate to drain through the outlet tube. In practice, the ball is ~ ' ~ .
::
.
~2~Z953 1 provided with a specific gravity so that it will float to open the valve seat when the condensate has accum-ulated to a level about 1/4 inch above the seat 9.
The space between seat 9 and the lower end 8 of housing 4 defines a reservoir or sump 11 and contam-inates in the condensate will be collected in sump 11 and thus will not accumulate on the seat 9 to distrupt proper seating of the ball on the seat.
All of the components of the discharge device, including the housing 4, outlet tube 7, ball 10 and plug 5 are preferably formed of plastic material so that the entire unit is non-corrosive. The device is of simple and inexpensive construction, being gravity actuatedj and includes only one moving part which is - 15 the spherical float or ball. Furthermore, the device is operable without adjustment.
The hollow plastic ball being light in weight provides improved response to accumulated condensate.
The in-line construction of the inlet and outlet facilitates plastic molding and the incoming condensate entering the housing through nipple 3 tends to flush and rotate the ball, thereby cleaning the ball and removing contamination to insure proper seating of the ball on the seat 9. As a further advantage, the incoming condensate is deflected outwardly by the ball and is directed toward the sump 11, thereby providing some agitation of the condensate in the sump. Agita-tion of the condensate results in some o~ the contam-inants in the sump being suspended in the liquid and c~r~ied out throuyh the outlet tul-e.
, ,~ , ~ ' - .
.
~Z42~S3 _.5_ / Various modes of carrying out the invention are contemplated as being within the scope of the following claims particularly pointing out and distinctly claiming the subject matter which is S regarded as the inventionO
Claims (3)
1. In a combustion system, a conduit to conduct waste gases of combustion and having a drain opening in a lower portion thereof, a housing having an inlet in its upper end communicating with said drain opening, said housing having an aperture in the lower end thereof, an outlet tube disposed in said aperture and aligned with said inlet, the upper end of said outlet tube projecting upwardly from the bottom of the housing to provide a seat and the space between the seat and the bottom of said housing defining a sump, and a spherical float disposed within the housing and mounted to rest on the set to prevent discharge of gas through said outlet tube, cooling of said waste gases in said conduit generating condensate which flows through said drain opening to said housing, an accumulation of condensate above the level of said seat causing said spherical float to lift from said seat to permit discharge of condensate through said outlet tube while preventing discharge of gas through said outlet tube.
2. The device of claim 1, wherein said housing is cup-shaped and has a generally cylindrical wall and a bottom surface and having an open upper end, a plug secured within
2. The device of claim 1, wherein said housing is cup-shaped and has a generally cylindrical wall and a bottom surface and having an open upper end, a plug secured within
Claim 2 continued...
the open upper end of said housing, said inlet being disposed in said plug.
the open upper end of said housing, said inlet being disposed in said plug.
3. The system of claim 1, wherein said float is aligned beneath said inlet so that condensate entering said inlet will strike said float and be deflected outwardly toward said sump.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US61660884A | 1984-06-04 | 1984-06-04 | |
| US616,608 | 1984-06-04 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1242953A true CA1242953A (en) | 1988-10-11 |
Family
ID=24470225
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000482080A Expired CA1242953A (en) | 1984-06-04 | 1985-05-22 | Condensate discharge device for combustion apparatus |
Country Status (6)
| Country | Link |
|---|---|
| BE (1) | BE902570A (en) |
| CA (1) | CA1242953A (en) |
| DE (1) | DE3519593A1 (en) |
| FR (1) | FR2565326A1 (en) |
| GB (1) | GB2159927A (en) |
| NL (1) | NL8501614A (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4627460A (en) * | 1984-06-04 | 1986-12-09 | A. D. Smith Corporation | Condensate discharge device for combustion apparatus |
| IT220831Z2 (en) * | 1990-07-30 | 1993-11-19 | Afa - Tec | "CONDENSATE DISCHARGE FOR CONDENSING BOILER FUELED WITH GAS". |
| AT397296B (en) * | 1991-03-18 | 1994-03-25 | Vaillant Gmbh | CONDENSATE DRAINING DEVICE WITH A VALVE SEAT IN A CHAMBER |
| DE19631766A1 (en) * | 1996-08-06 | 1998-02-12 | Siemens Ag | Compressor unit |
| GB2407365B (en) * | 2003-10-22 | 2007-05-02 | Worcester Heat Systems Ltd | Boiler condensate collector |
| DE102006020292B4 (en) * | 2006-04-27 | 2009-05-14 | Benteler Automobiltechnik Gmbh | Automotive exhaust system |
| DE102009050864B4 (en) | 2009-10-27 | 2013-10-31 | Benteler Automobiltechnik Gmbh | condensate |
| DE102016121441A1 (en) * | 2016-11-09 | 2018-05-09 | Avl Emission Test Systems Gmbh | Condensate discharge system for an exhaust gas meter |
| DE102017204028A1 (en) * | 2017-03-10 | 2018-09-13 | Robert Bosch Gmbh | Heat exchange unit |
| IT201700101472A1 (en) * | 2017-09-11 | 2019-03-11 | Riello Spa | VALVE FOR DRAINING THE CONDENSATION OF A CONDENSING BOILER |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB381252A (en) * | 1931-07-13 | 1932-10-06 | Frederick Samuel Carter | Improvements in valves used in float operated valves and such like purposes |
| GB780196A (en) * | 1954-06-04 | 1957-07-31 | Frederick Henry Sherbourne | Closure member for cistern and like overflow pipes |
| US3610275A (en) * | 1970-05-04 | 1971-10-05 | Thomas E Determan | Removable drain valve |
| GB1357953A (en) * | 1971-03-08 | 1974-06-26 | Porter Lancastrian Ltd | Dispensing of carbonated beverages |
| JPS547623A (en) * | 1977-06-20 | 1979-01-20 | Tlv Co Ltd | Float type steam trap |
| US4289730A (en) * | 1980-03-26 | 1981-09-15 | Heil-Quaker Corporation | Furnace with flue gas condensate neutralizer |
| SE425691B (en) * | 1981-03-26 | 1982-10-25 | Atlas Copco Ab | DRENERINGSVENTILANORDNING |
| EP0102141B1 (en) * | 1982-05-26 | 1986-11-20 | West Pharmarubber Limited | Apparatus for administering a liquid to patients |
-
1985
- 1985-05-22 CA CA000482080A patent/CA1242953A/en not_active Expired
- 1985-05-30 GB GB08513661A patent/GB2159927A/en not_active Withdrawn
- 1985-05-31 DE DE19853519593 patent/DE3519593A1/en not_active Withdrawn
- 1985-06-03 FR FR8508328A patent/FR2565326A1/en not_active Withdrawn
- 1985-06-03 BE BE0/215118A patent/BE902570A/en not_active IP Right Cessation
- 1985-06-04 NL NL8501614A patent/NL8501614A/en not_active Application Discontinuation
Also Published As
| Publication number | Publication date |
|---|---|
| BE902570A (en) | 1985-09-30 |
| GB8513661D0 (en) | 1985-07-03 |
| NL8501614A (en) | 1986-01-02 |
| DE3519593A1 (en) | 1985-12-05 |
| FR2565326A1 (en) | 1985-12-06 |
| GB2159927A (en) | 1985-12-11 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |