US3404664A - Hot water boiler - Google Patents

Hot water boiler Download PDF

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Publication number
US3404664A
US3404664A US683065A US68306567A US3404664A US 3404664 A US3404664 A US 3404664A US 683065 A US683065 A US 683065A US 68306567 A US68306567 A US 68306567A US 3404664 A US3404664 A US 3404664A
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United States
Prior art keywords
boiler
supporting
tank
water tank
water
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Expired - Lifetime
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US683065A
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English (en)
Inventor
Viessmann Hans
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Individual
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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
    • F24H1/48—Water heaters for central heating incorporating heaters for domestic water
    • F24H1/50—Water heaters for central heating incorporating heaters for domestic water incorporating domestic water tanks

Definitions

  • ABSTRACT OF THE DISCLOSURE also includes reinforcing members conformingly shaped y and in contact with the water tank end walls.
  • the present invention relates to a boiler including a ⁇ boiler shell and a relatively thin-walled water tank therein for producing and storing hot water, and more particularly to a supporting stmcture vfor the Water tank within the boiler shell.
  • Water tanks are installed in the water bearing shell of boilers above the furnace or combustion chamber.
  • Present-day boilers are designed for high peak output capacity but low continuous output as compared to instantaneous or nonstorage water heaters having a large permanent output but a low peak capacity.
  • Non-storage water heaters may be economically made from such materials as copper or nickel-bronze, which are corrosion-resistant, because such units require relatively little material for their construction.
  • making hot water tanks designed for high peak output capacity of such materials is very costly because of the amount of material necessary to obtain tanks of sufficient wall thickness.
  • such materials as unalloyed steel do not have sutiicient corrosion resistance, particularly to the ever increasing corrosiveness of present-day water supplies.
  • the boiler wherewith the supporting structure of the present'invention is used includes a boiler shell and a relatively thin-walled water tank for producing and storing hot water.
  • the boiler shell has a rst wall portion 3,404,664. Patented Oct. 8, 1968 ICC and two end wall portions, and the Water tank has a rst wall portion and two end wall portions, the first wall portions of the boiler shell and water tank extending in the same axial direction.
  • the water tank is disposed within the boiler shell and water inlet and outlet means pass through the boiler shell into and out of the water tank.
  • the water tank supporting structure of this invention includes a plurality of rigidly secured longitudinal supporting bars in contact with the rst wall portion of the ⁇ Water tank and extending in the axial direction thereof, The bars are disposed in spaced relationship about the periphery of the first wall portion of the tank.
  • An annular supporting element is interposed between one end of the longitudinal supporting bars and an adjacent boiler Shell end wall, and the supporting element is rigidly secured to the supporting bar and the adjacent shell end wall.
  • a reinforcing member is conformingly shaped and in contact with one of the water tank end walls for supporting the same.
  • two such annular supporting elements are interposed between respective ends of the longitudinal supporting bars and the adjacent boiler shell end walls, each of the supporting elements being rigidly secured to the supporting bar ends and the adjacent boiler shell end walls.
  • one of the longitudinal supporting Ibar ends is rigidly secured directly to an adjacent one of the boiler shell end walls.
  • one or both of the boiler shell end walls have portions conformingly shaped and in contact with adjacent end wall portions of the water tank to form the reinforcing member.
  • perforated supporting plates Serve as reinforcing members.
  • Supporting structures incorporating the above and other features of the Vpresent invention Will impart to the water tank sufficient resistance to 'axial and radial pressures to make it possible to make the water tank walls relatively thin, thus reducing the amount of relatively expensive material used for the construction of the tank. Also, such supporting structures serve simultaneously to mount the tank in the boiler shell and to reinforce the tank walls.
  • the expansion of the water tank in the axial direction is limited 'by the longitudinal supporting bars rigidly secured directly or indirectly to the end Walls of the boiler shell.
  • the shell of the boi-ler also has a certain elasticity in such an arrangement to make allowance for the partly considerable uctuations in the internal pressure as water flows out and the pressure decreases.
  • FIG. 1 is a longitudinal sectional view of one embodiment of a boiler according to this invention
  • FIG. 2 is a transverse cross section along line II-II of FIG. 1;
  • FIG. 3 is a view similar to that of FIG. l of another embodiment of the invention.
  • FIG. 4 is also a view similar to that of FIG. 1 showing yet another embodiment;
  • FIG. 5 illustrates a fourth embodiment in a similar view.
  • the boiler is shown to comprise a water tank 1 for producing and storing warm or hot water for industrial use, for instance.
  • the water tank has relatively thin walls of corrosion-resistant material, the walls including a first, corrugated cylindrical wall portion 2 and bottom or end wall portions 3, 4 respectively sealing the interior of the tank at its ends.
  • End w-all portion 3 defines a cleaning port 5 which may be sealed by -suitable means (not shown).
  • Water is fed t0 the tank 'by water supply tube 6 extending into the interior of the tank through a suitable aperture in wall portion 3 and is delivered therefrom by water outlet tube 7 similarly positioned in the tank wall portion 3.
  • the present invention provides a supporting structure ⁇ reinforcing and supporting the tank.
  • this supporting structure includes wall portions 8 and 8 of the end wall portions 9 and 9 of the boiler shell, the shell wall portions 8, 8 being shaped conformingly to the shape of contacting tank end wall portions 3, 4.
  • the conforming boiler shell Wall portions reinforce the end walls of the tank.
  • a first, cylindrical shell wall portion 19 surrounds the water tank and defines an annular jacket therewith.
  • the cylindrical wall portion 2 of the tank 1 is reinforced and supported by a plurality of supporting bars 11 disposed in spaced relationship about the periphery of wall portion 2 and in contact therewith.
  • the supporting bars 11 are preferably of concave shape with respect to the wall portion 2 so as to increase the rigidity of the bars while only a small surface portion of the lbars is in contact wit-h the periphery of the tank so that longitudinal movement thereof is obstructed as little as possible.
  • a pair of annular supporting elements 10, 10 are mounted between the boiler shell walls 9, 9 and the respective ends of the supporting bars 11, being rigid-ly attached to the shell walls and the supporting bar ends.
  • the water' tank and itsl support structure are disposed inside the boiler shell, and the longitudinal supporting bars 11 extend parallel to the axis of the tank.
  • T-he incorporation of the boiler shell wall portions 8, 8 into the -supporting structure for the water tank has the advantage that it obviates the need for a separate supporting and/ or reinforcing means, such as a conventional cover, for the end walls of the tank, in addition to simplifying the water inlet and outlet means connections to the tank,
  • connections are provided simply by providing registering apertures 12, 12 in the contacting tank end wall portion 3 and shell wall portion 9, the apertures in wall portion 3 being flanged at 13 to fit into the registering apertures of wall portion 9.
  • Suitable threaded connections 14, 14 are provided on the water inlet and outlet tubes 6 and 7, respectively, for connection to a lwater inlet source and a hot water outlet (not shown).
  • At least one of the tank end walls may have formed therein a plurality of. channels 15 indicated in broken lines in FIGS. 1 and 2.
  • Water circulation in the annular jacket between the boiler shell and the hot water tank may be further enhanced by providing ports 16 in supporting rings 10, 10.
  • the boiler shell has no wall portions conforming to the shape of tank end wall portions 3, 4 and reinforcing the same to form part of the tank supporting structure. Rather, perforated supporting plates conforming in shape to the tank end wall portions and contacting the same are provided as part of the tank supporting structure. These supporting plates preferably are of steel sheet and may be welded to the tank end wall portions.
  • FIG. 3 which in all respects not otherwise described is identical with that of FIG. l, two perforated steel sheet plates 17, 17 are rigidly secured to the tank end walls, the perforations ⁇ in the supporting plates serving to prevent any substantial obstruction of heat transfer in the regions of the tank end wall portions.
  • FIG. 4 differs from the embodiment of FIG. 3 in that one of the ends of longitudinal supporting bars 11 is rigidly connected directly to the boiler shell end wall 9', only one supporting ring 10 being provided in the supporting structure of this embodiment. While the perforated supporting plate 18 is rigidly attached to supporting ring 10, the other perforated supporting plate 18 is rigidly connected to the ⁇ supporting bars 11 so that the peripheral portion of the supporting plate 18 forms, in effect, one of the supporting rings for the tank end walls.
  • the -above-described principles of the supporting structure for water tanks in a boiler may also be applied to an upright boiler wherein the water tank and boiler shell axes extend vertically.
  • this embodiment which differs from that of FIG. 1 only in those aspects presently described, one of the ends of supporting bars 11 are directly and rigidly attached to boiler shell wall portion 9, thus dispensing with annular supporting element 10.
  • the other annular supporting element 10 is 'shaped to conform to a contacting annular peripheral portion 4 of water tank end wall portion 4 so as to support the bottom of the tank.
  • a boiler including a boiler shell and a relatively thin-walled water tank for producing and storing hot water, the -boiler shell having a first wall portion and two end wall portions, and the water tank having a first wall portion and two end wall portions, the first wall portions of the boiler shell and water tank extending in the same axial direction, the water tank being disposed within the boiler shell, and water inlet and outlet means passing through the boiler shell into and out of the water tank, the improvement of a water tank supporting 'structure including (1) a plurality of rigidly secured longitudinal supporting bars in contact with the first wall portion of the water tank and extending in said axial direction, said bars being disposed in spaced relationship about the periphery of the first wall portion of the water tank,
  • annular supporting element interposed -between one end of the longitudinal supporting bars and an adjacent one of the boiler shell end walls, the 'supporting element being rigidly secured to the supporting bar ends and the adjacent shell end Wall,
  • the reinforcing member consisting of -a conformingly shaped portion of the boiler shell end wall adjacent the water tank end wall.
  • the reinforcing member consisting of a perforated supporting plate conformingly shaped and in contact with the adjacent water tank end wall.
  • annular supporting elements being interposed between the respective ends of the longitudinal supporting bars and the adjacent boiler shell end walls, the annular supporting elements being disposed about the periphery of the water tank end wall portions and being rigidly secured to the 'supporting bar ends and the adjacent shell end wall portions, respectively.
  • annular supporting elements being interposed -between the respective ends of the longitudinal supporting bars and the adjacent boiler shell end walls, the annular supporting elements being disposed Iabout the periphery of the water tank end wall portions and being rigidly secured to the supporting bar ends and the adjacent shell end wall portions, respectively.
  • one of said reinforcing members is rigidly secured to the annular supporting element and the other reinforcing member is rigidly secured to the longitudinal supporting bars, one of the ends of the bars being rigidly secured to the annular supporting element and the other end of the bars being rigidly secured to one of the -boiler shell end wall portions adjacent thereto.
  • the upper one of the boiler shell end walls having a portion conformingly shaped and in contact with the upper one of the water tank end wall portions to form the reinforcing member for said upper water tank end wall portion, the upper ends of the longitudinal supporting bars being rigidly secured to the upper boiler shell end wall, and said annular supporting element being interposed between the lower ends of the longitudinal supporting bars and the lower boiler shell end wall, said annular supporting element being shaped to contact a peripheral portion of the lower water tank end wall portion so as to support the same.
  • the longitudinal supporting bars being of concave shape in respect to the first wall portion of the water tank, the concavely shaped portion of the supporting bars being in contact with said first wall portion.
  • the -annular supporting element defining a port means for facilitating water circulation.
  • At least one of the water tank end walls defining channels for enhancing water ow through the tank.
  • said first wall portion of the water tank being corrugated in a direction transverse to the axial direction.

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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)
  • Details Of Fluid Heaters (AREA)
  • Steam Or Hot-Water Central Heating Systems (AREA)
  • Details Of Rigid Or Semi-Rigid Containers (AREA)
US683065A 1965-09-30 1967-10-17 Hot water boiler Expired - Lifetime US3404664A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEV0029430 1965-09-30

Publications (1)

Publication Number Publication Date
US3404664A true US3404664A (en) 1968-10-08

Family

ID=7584883

Family Applications (1)

Application Number Title Priority Date Filing Date
US683065A Expired - Lifetime US3404664A (en) 1965-09-30 1967-10-17 Hot water boiler

Country Status (11)

Country Link
US (1) US3404664A (de)
AT (1) AT263287B (de)
BE (1) BE687329A (de)
CH (1) CH455207A (de)
DE (1) DE1679782B1 (de)
DK (1) DK113601B (de)
FR (1) FR1508984A (de)
GB (1) GB1156924A (de)
NL (1) NL6613639A (de)
NO (1) NO117323B (de)
SE (1) SE335414B (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110073190A1 (en) * 2008-06-12 2011-03-31 Henri Peteri Beheer B.V. Hot water heater and method of supplying hot water

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2131135A (en) * 1982-12-01 1984-06-13 Lawrence Burns Means to accommodate liquid expansion in a closed liquid storage vessel

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2373731A (en) * 1940-07-24 1945-04-17 Timken Axle Co Detroit Heating unit
US2739576A (en) * 1951-05-29 1956-03-27 Nat Res Dev Safety apparatus for steam boilers
US3028843A (en) * 1956-02-13 1962-04-10 Handling Equipment Mfg Corp Gas water heater for trailers and houses

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1074839B (de) * 1960-02-01 Pieren Konol fingen Bern Hermann (Schweiz) Stehender Heizkessel fur Sammelheizungs anlagen mit eingebautem Warmwasserbereiter
US2007426A (en) * 1933-11-18 1935-07-09 Patco Inc Automatic storage type water heater with concentric shells
FR780414A (fr) * 1934-10-29 1935-04-26 Chauffe-eau
CH277915A (de) * 1949-12-21 1951-09-30 Soehne M Oberrauch Heisswasserbehälter.
DE952028C (de) * 1953-04-10 1956-11-08 Hovalwerk Ag Ospelt Heizkessel mit Warmwssererzeuger
DE1752161U (de) * 1957-07-20 1957-09-12 Friedrich Wilhelm Heider K G Warmwasserbereiter.

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2373731A (en) * 1940-07-24 1945-04-17 Timken Axle Co Detroit Heating unit
US2739576A (en) * 1951-05-29 1956-03-27 Nat Res Dev Safety apparatus for steam boilers
US3028843A (en) * 1956-02-13 1962-04-10 Handling Equipment Mfg Corp Gas water heater for trailers and houses

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110073190A1 (en) * 2008-06-12 2011-03-31 Henri Peteri Beheer B.V. Hot water heater and method of supplying hot water
US9261291B2 (en) * 2008-06-12 2016-02-16 Henri Peteri Beheer B.V. Hot water heater and method of supplying hot water

Also Published As

Publication number Publication date
FR1508984A (fr) 1968-01-12
DE1679782B1 (de) 1971-01-07
BE687329A (de) 1967-03-01
CH455207A (de) 1968-06-28
DK113601B (da) 1969-04-08
GB1156924A (en) 1969-07-02
AT263287B (de) 1968-07-10
SE335414B (de) 1971-05-24
NO117323B (de) 1969-07-28
NL6613639A (de) 1967-03-31

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