US3192906A - Boilers for reducing temperature gradient and improving water circulation - Google Patents

Boilers for reducing temperature gradient and improving water circulation Download PDF

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Publication number
US3192906A
US3192906A US254174A US25417463A US3192906A US 3192906 A US3192906 A US 3192906A US 254174 A US254174 A US 254174A US 25417463 A US25417463 A US 25417463A US 3192906 A US3192906 A US 3192906A
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United States
Prior art keywords
heating space
heating
axis
space
conduit means
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Expired - Lifetime
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US254174A
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English (en)
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Gerbert Heinz
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Individual
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    • 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
    • F24H1/22—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating
    • F24H1/24—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating with water mantle surrounding the combustion chamber or chambers
    • F24H1/26—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating with water mantle surrounding the combustion chamber or chambers the water mantle forming an integral body
    • F24H1/28—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating with water mantle surrounding the combustion chamber or chambers the water mantle forming an integral body including one or more furnace or fire tubes
    • F24H1/282—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating with water mantle surrounding the combustion chamber or chambers the water mantle forming an integral body including one or more furnace or fire tubes with flue gas passages built-up by coaxial water mantles
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B13/00—Steam boilers of fire-box type, i.e. boilers where both combustion chambers and subsequent flues or fire tubes are arranged within the boiler body
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B7/00—Steam boilers of furnace-tube type, i.e. the combustion of fuel being performed inside one or more furnace tubes built-in in the boiler body
    • F22B7/12—Steam boilers of furnace-tube type, i.e. the combustion of fuel being performed inside one or more furnace tubes built-in in the boiler body with auxiliary fire tubes; Arrangement of header boxes providing for return diversion of flue gas flow
    • 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
    • F24H1/22—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating
    • F24H1/24—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating with water mantle surrounding the combustion chamber or chambers
    • F24H1/26—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating with water mantle surrounding the combustion chamber or chambers the water mantle forming an integral body
    • F24H1/28—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating with water mantle surrounding the combustion chamber or chambers the water mantle forming an integral body including one or more furnace or fire tubes

Definitions

  • the present invention relates to boilers, particularly to tubular boilers, in which the fluid to be heated is conveyed by tubes through the combustion chamber.
  • a flared channel interconnecting the outer and the inner water jacket at a point close to the lowermost portions of the heating spaces in the jackets, the flared end of this channel communicating with the reflux or cold-water inlet.
  • Another" feature of the invention is an arrangement of upper and lower channels interconnecting the outer and inner jackets in such a manner that the total cross-sectional area or effective flow section of the upper channel or channels is at least twice as large as that of the lower channel or channels, thus increasing the velocity of the water flowing through the lower channel.
  • Still another feature of the invention is the arrangement of the reflux or cold-water inlet directly under the flared channel so as to increase the water circulation.
  • the upper and lower interconnecting channels are arranged in axially offset relation so as to obtain an additional direction of water flow which is inclined with respect to the vertical.
  • FIG. 1 is a sectional elevational view of the boiler in accordance with the present invention
  • FIG. 2 is a cross-section of the boiler in FIG. 1, along line II;
  • FIG. 3 is a sectional view of a boiler in accordance with this invention, differing from the embodiment in FIG. 1 in that the inlet and lower connecting channel are 3,192,906 Patented July 6,1965
  • FIG. 4 is a cross-section of the boiler of FIG. 3, along line HIIII. i
  • the boiler according to the invention has two double water jackets 9 and 10 which are of coaxial cylindrical shape, the inner jacket 10 enclosing the combustion chamber 11.
  • a reflux-water inlet 1 is provided at the lowermost portion 2 of the outer jacket 9.
  • Arranged directly above and coaxial with the orifice of the inlet 1 is the orifice of a channel 7 interconnecting the outer and inner cylinder jackets 9, 10.
  • the lower end of channel 7 has a flared-out portion 3 which may be constructed of special tube sections or deflectors (not shown).
  • Two upper channels 5, 6 are provided for interconnecting jackets 9, 10 at the upper side.
  • the water is heated by a burner (not shown) which can be inserted into an aperture 12 provided for this purpose.
  • the flue gases may escape through an annular chamber 13 between the jackets 9, 10 and an exhaust duct 14. Heated water is withdrawn through an outlet 18.
  • the boiler shown in FIG. 3 is of the same type as the boiler in FIG. 1.
  • the inlet 1 and the outlet 18 are respectively arranged at the front and the rear ends of the boiler.
  • the lower connecting channel 7 and the upper connecting channel 6 are respectively arranged at the front and the rear ends of the boiler.
  • the boiler shown in FIG. 3 only one upper connecting channel 6 is provided, whereas in FIG. 1 two such channels, 5, 6, are
  • the cold reflux water enters the boiler through inlet 1 and normally covers the lowermost jacket portion-2. As soon as the water is heated, it flows upwards through channels 7, 5, 6 as indicated by the arrows in FIGS. 1 through 4. Owing to the dimensions of the upper chan- ''nel or channels where the effective flow section of the channel or channels is at least twice as large as that of the lower channel, a strong'thermal suction is generated. This suction coacts with the flared-out portion 3 of lower channel 7 thereby removing by suction the cold water from the boiler bottom.
  • an outer jacket means including spaced inner and outer walls enclosing a first heating space of annular cross section about a horizontally extending axis
  • said inner jacket means including spaced inner and outer walls enclosing a second heating space of annular cross section about said axis,
  • said first conduit means including at least one conduit connecting said heating spaces, and flaring in a direction from said second toward said first heating space
  • outlet means for Withdrawing a heated fluid from one of said heating spaces.
  • said inlet means and said one conduit having respective coaxial orifices in said first heating space, said orifices being vertically spaced from each other.
  • said inner and outer jacket means being substantially cylindrical about said horizontally extending axis.
  • said inner and outer jacket means being radially spaced from each other and defining therebetween a channel of annular cross section communicating with said combustion chamber. 5.
  • said first portions of said heating spaces being the respective lowermost portions of said spaces, and said second portions of said heating spaces being the respective uppermost portions of heating spaces.
  • said outlet means directly communicating with a portion of said first heating space remote from said first portion thereof.
  • said jacket having a horizontally extending axis
  • said inner jacket being substantially cylindrical about said axis and including an inner and an outer wall enclosing a second heating space of annular cross section
  • inlet means for feeding a fluid to be heated to the lowermost portion of said first heating space
  • said lower conduit means including at least one conduit connecting said heating spaces and flaring in a downward direction
  • outlet means communicating with said uppermost portion of said heating space.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Heat-Pump Type And Storage Water Heaters (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
US254174A 1962-02-01 1963-01-28 Boilers for reducing temperature gradient and improving water circulation Expired - Lifetime US3192906A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEV21967A DE1167505B (de) 1962-02-01 1962-02-01 Warmwasserheizkessel mit Einrichtung zum Vermeiden von Temperaturschichtungen und Erhoehen des Wasserumlaufes

Publications (1)

Publication Number Publication Date
US3192906A true US3192906A (en) 1965-07-06

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ID=7579525

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Application Number Title Priority Date Filing Date
US254174A Expired - Lifetime US3192906A (en) 1962-02-01 1963-01-28 Boilers for reducing temperature gradient and improving water circulation

Country Status (6)

Country Link
US (1) US3192906A (da)
CH (1) CH417908A (da)
DE (1) DE1167505B (da)
DK (1) DK106459C (da)
GB (1) GB996551A (da)
LU (1) LU43046A1 (da)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3435807A (en) * 1966-05-23 1969-04-01 Decauville Sa Boiler
US4215655A (en) * 1978-10-02 1980-08-05 Uri Limoni Crescent heat exchanger liquid heater
US20040206038A1 (en) * 2001-11-08 2004-10-21 Oliver Stanchfield Smooth flooring transitions

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1907505B1 (de) * 1969-02-14 1970-05-14 Hans Viessmann Heizkessel mit Umlenkkammer
AT366171B (de) * 1979-06-07 1982-03-25 Lechner Georg Liegender kessel, insbesondere fuer warmwasserzentralheizungsanlagen
DE3015377C2 (de) * 1980-04-22 1983-10-06 Wolf Klimatechnik GmbH, 8302 Mainburg Heizungskessel für Warmwasserheizungsanlagen
DE3524017A1 (de) * 1984-07-14 1986-01-23 Joh. Vaillant Gmbh U. Co, 5630 Remscheid Wasserheizkessel
GB8422811D0 (en) * 1984-09-10 1984-10-17 Burco Dean Ltd Water heating apparatus
RU2406925C1 (ru) * 2009-08-10 2010-12-20 Общество с ограниченной ответственностью "Тепловые системы" Котел жидкостного подогревателя

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1589162A (en) * 1924-05-24 1926-06-15 James S Hillyer Boiler
US2531459A (en) * 1946-05-04 1950-11-28 Stewart Warner Corp Water heater
FR1215040A (fr) * 1958-11-03 1960-04-13 Gen Thermique Perfectionnements apportés à l'alimentation des chaudières

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE537029C (de) * 1927-06-29 1931-10-29 Daniil Majuga Liegender Heizkessel fuer Zentralheizungsanlagen

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1589162A (en) * 1924-05-24 1926-06-15 James S Hillyer Boiler
US2531459A (en) * 1946-05-04 1950-11-28 Stewart Warner Corp Water heater
FR1215040A (fr) * 1958-11-03 1960-04-13 Gen Thermique Perfectionnements apportés à l'alimentation des chaudières

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3435807A (en) * 1966-05-23 1969-04-01 Decauville Sa Boiler
US4215655A (en) * 1978-10-02 1980-08-05 Uri Limoni Crescent heat exchanger liquid heater
US20040206038A1 (en) * 2001-11-08 2004-10-21 Oliver Stanchfield Smooth flooring transitions

Also Published As

Publication number Publication date
CH417908A (de) 1966-07-31
DE1167505B (de) 1964-04-09
LU43046A1 (da) 1963-03-19
GB996551A (en) 1965-06-30
DK106459C (da) 1967-02-06

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