CA2582309A1 - Ultra low nox water heater - Google Patents
Ultra low nox water heater Download PDFInfo
- Publication number
- CA2582309A1 CA2582309A1 CA002582309A CA2582309A CA2582309A1 CA 2582309 A1 CA2582309 A1 CA 2582309A1 CA 002582309 A CA002582309 A CA 002582309A CA 2582309 A CA2582309 A CA 2582309A CA 2582309 A1 CA2582309 A1 CA 2582309A1
- Authority
- CA
- Canada
- Prior art keywords
- water heater
- fuel
- water
- combustion chamber
- plenum
- 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.)
- Granted
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23M—CASINGS, LININGS, WALLS OR DOORS SPECIALLY ADAPTED FOR COMBUSTION CHAMBERS, e.g. FIREBRIDGES; DEVICES FOR DEFLECTING AIR, FLAMES OR COMBUSTION PRODUCTS IN COMBUSTION CHAMBERS; SAFETY ARRANGEMENTS SPECIALLY ADAPTED FOR COMBUSTION APPARATUS; DETAILS OF COMBUSTION CHAMBERS, NOT OTHERWISE PROVIDED FOR
- F23M11/00—Safety arrangements
- F23M11/02—Preventing emission of flames or hot gases, or admission of air, through working or charging apertures
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23M—CASINGS, LININGS, WALLS OR DOORS SPECIALLY ADAPTED FOR COMBUSTION CHAMBERS, e.g. FIREBRIDGES; DEVICES FOR DEFLECTING AIR, FLAMES OR COMBUSTION PRODUCTS IN COMBUSTION CHAMBERS; SAFETY ARRANGEMENTS SPECIALLY ADAPTED FOR COMBUSTION APPARATUS; DETAILS OF COMBUSTION CHAMBERS, NOT OTHERWISE PROVIDED FOR
- F23M2900/00—Special features of, or arrangements for combustion chambers
- F23M2900/11021—Means for avoiding accidental fires in rooms where the combustion device is located
-
- 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
- F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
- F24H1/18—Water-storage heaters
- F24H1/20—Water-storage heaters with immersed heating elements, e.g. electric elements or furnace tubes
- F24H1/205—Water-storage heaters with immersed heating elements, e.g. electric elements or furnace tubes with furnace tubes
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
Abstract
A low NO x water heater including a water container; a combustion chamber adjacent the water container having an opening covered with an open flame arrestor; a burner associated with the combustion chamber and arranged to combust fuel to heat water in the water container, the burner including a plenum chamber having a combustion surface and a fuel/air conduit adapted to receive fuel and air and extending between and sealed to the plenum and a wall of the combustion chamber; and a heat resistant acoustic absorber positioned on the wall.
Claims (23)
1. A low NO x water heater comprising:
a water container;
a combustion chamber adjacent the water container having an opening covered with an open flame arrestor;
a burner associated with the combustion chamber and arranged to combust fuel to heat water in the water container, the burner comprising a plenum chamber having a combustion sur-face and a fuel/air conduit adapted to receive fuel and air and extending between and sealed to the plenum and a wall of the combustion chamber; and a heat resistant acoustic absorber positioned on the wall.
a water container;
a combustion chamber adjacent the water container having an opening covered with an open flame arrestor;
a burner associated with the combustion chamber and arranged to combust fuel to heat water in the water container, the burner comprising a plenum chamber having a combustion sur-face and a fuel/air conduit adapted to receive fuel and air and extending between and sealed to the plenum and a wall of the combustion chamber; and a heat resistant acoustic absorber positioned on the wall.
2. The water heater defined in claim 1, wherein the wall is substantially vertically oriented and the absorber is adhered to the wall.
3. The water heater defined in claim 2, wherein the absorber extends vertically between a bottom portion of the water container and a bottom portion of the water heater.
4. The water heater defined in claim 1, wherein the absorber is an insulation pad.
5. The water heater defined in claim 1, wherein the absorber comprises fiberglass.
6. The water heater defined in claim 1, further comprising a metallic backing layer applied to the absorber.
7. A low NO x water heater comprising:
a water container;
a combustion chamber adjacent the water container;
a burner associated with the combustion chamber and arranged to combust fuel to heat water in the water container, the burner having a combustion surface and a fuel/air conduit extending from the plenum and adapted to receive fuel; and a fuel nozzle positioned to supply fuel into the fuel/air conduit at an angle that is between about 1.5° and about 2.5° out of horizontal relative to a horizontal plane extending along a cen-tral axis of the fuel/air conduit.
a water container;
a combustion chamber adjacent the water container;
a burner associated with the combustion chamber and arranged to combust fuel to heat water in the water container, the burner having a combustion surface and a fuel/air conduit extending from the plenum and adapted to receive fuel; and a fuel nozzle positioned to supply fuel into the fuel/air conduit at an angle that is between about 1.5° and about 2.5° out of horizontal relative to a horizontal plane extending along a cen-tral axis of the fuel/air conduit.
8. The water heater defined in claim 7, wherein the angle is about 2°.
9. The water defined in claim 7, wherein an end portion of the fuel/air conduit extending from the plenum is sealed to a wall portion of the combustion chamber.
10. The water heater defined in claim 9, wherein the wall portion is a door sealed to an opening in the combustion chamber.
11. The water heater defined in claim 7, wherein the fuel/air conduit extends into the plenum a distance of about 3/4 of the length of the plenum.
12. The water heater defined in claim 11, wherein a distal portion of the fuel/air con-duit extending into the plenum is angled at about 45°.
13. A low NO x water heater comprising:
a water container;
a combustion chamber adjacent the water container- having an opening covered with an open flame arrestor;
a burner associated with the combustion chamber and arranged to combust fuel to heat water in the container, the burner having a combustion surface and adapted to receive fuel; and a fuel/air conduit sealed between a wall portion of the combustion chamber and the plenum, wherein an end portion of the conduit adjacent the wall portion is substantially conically shaped.
a water container;
a combustion chamber adjacent the water container- having an opening covered with an open flame arrestor;
a burner associated with the combustion chamber and arranged to combust fuel to heat water in the container, the burner having a combustion surface and adapted to receive fuel; and a fuel/air conduit sealed between a wall portion of the combustion chamber and the plenum, wherein an end portion of the conduit adjacent the wall portion is substantially conically shaped.
14. The water heater defined in claim 13, wherein the end portion further comprises a flange connected to the conically shaped portion and the flange is located exteriorly of the wall portion and is sealed to the wall portion.
15. The water defined in claim 13, wherein the wall portion is a door sealed to an opening in the combustion chamber.
16. The water heater defined in claim 13, wherein the fuel/air conduit extends into the plenum a distance of about 3/4 of the length of the plenum.
17. The water heater defined in claim 13, wherein a distal portion of the fuel/air con-duit extending into the plenum is angled at about 45°.
18. A low NO x water heater comprising:
a water container;
a combustion chamber adjacent the water container;
a burner associated with the combustion chamber and arranged to combust fuel to heat water in the water container, the burner comprising a plenum chamber having a combustion sur-face and a fuel/air conduit adapted to receive fuel and air and extending between and sealed to the plenum and a wall of the combustion chamber; and a heat resistant acoustic absorber positioned on the wall.
a water container;
a combustion chamber adjacent the water container;
a burner associated with the combustion chamber and arranged to combust fuel to heat water in the water container, the burner comprising a plenum chamber having a combustion sur-face and a fuel/air conduit adapted to receive fuel and air and extending between and sealed to the plenum and a wall of the combustion chamber; and a heat resistant acoustic absorber positioned on the wall.
19. The water heater defined in claim 18, wherein the wall is substantially vertically oriented and the absorber is adhered to the wall.
20. The water heater defined in claim 19, wherein the absorber extends vertically be-tween a bottom portion of the water container and a bottom portion of the water heater.
21. The water heater defined in claim 18, wherein the absorber is an insulation pad.
22. The water heater defined in claim 18, wherein the absorber comprises fiberglass.
23. The water heater defined in claim 18, further comprising a metallic backing layer applied to the absorber.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| USUNKNOWN | 2002-08-28 | ||
| US78388206P | 2006-03-20 | 2006-03-20 | |
| US60/783,882 | 2006-03-20 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2582309A1 true CA2582309A1 (en) | 2007-09-20 |
| CA2582309C CA2582309C (en) | 2011-08-16 |
Family
ID=38520958
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA2582309A Expired - Fee Related CA2582309C (en) | 2006-03-20 | 2007-03-20 | Ultra low nox water heater |
Country Status (2)
| Country | Link |
|---|---|
| US (2) | US20070221142A1 (en) |
| CA (1) | CA2582309C (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5160139B2 (en) * | 2007-04-27 | 2013-03-13 | 株式会社パロマ | Hot water heater burner |
| US20090269712A1 (en) * | 2008-04-25 | 2009-10-29 | O'donnell Michael J | Burner |
| US8746214B2 (en) * | 2010-02-17 | 2014-06-10 | Turn And Bank Holdings, Inc. | Fuel control apparatus |
| US9038576B2 (en) | 2013-05-22 | 2015-05-26 | Plum Combustion, Inc. | Ultra low NOx burner using distributed direct fuel injection |
| CN103868228B (en) * | 2014-03-26 | 2017-04-12 | 艾欧史密斯(中国)热水器有限公司 | Volumetric gas water heater |
| US10215140B2 (en) | 2015-04-14 | 2019-02-26 | Turn And Bank Holdings, Llc | Fuel control valve assembly |
| KR102403219B1 (en) * | 2019-09-11 | 2022-05-30 | 주식회사 경동나비엔 | Bellmouth, air supply assembly includng the same and air supply control system using the same |
| US20210341177A1 (en) * | 2020-04-30 | 2021-11-04 | A. O. Smith Corporation | Gas burner assembly |
| CN113230873B (en) * | 2021-06-16 | 2022-01-25 | 深圳市格瑞斯达科技有限公司 | A kind of desulfurization and denitrification equipment |
| CN113776055B (en) * | 2021-08-23 | 2023-06-30 | 武汉钢铁有限公司 | Radiant tube low-nitrogen combustion and flue gas waste heat recovery system |
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-
2007
- 2007-03-16 US US11/724,828 patent/US20070221142A1/en not_active Abandoned
- 2007-03-20 CA CA2582309A patent/CA2582309C/en not_active Expired - Fee Related
-
2010
- 2010-03-09 US US12/720,222 patent/US20100154723A1/en not_active Abandoned
Also Published As
| Publication number | Publication date |
|---|---|
| US20070221142A1 (en) | 2007-09-27 |
| US20100154723A1 (en) | 2010-06-24 |
| CA2582309C (en) | 2011-08-16 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKLA | Lapsed |
Effective date: 20160321 |