US3195516A - Water-tube boiler - Google Patents

Water-tube boiler Download PDF

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Publication number
US3195516A
US3195516A US120050A US12005061A US3195516A US 3195516 A US3195516 A US 3195516A US 120050 A US120050 A US 120050A US 12005061 A US12005061 A US 12005061A US 3195516 A US3195516 A US 3195516A
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United States
Prior art keywords
tubes
portions
space
boiler
tube
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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
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US120050A
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English (en)
Inventor
Vorkauf Heinrich
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Individual
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Individual
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Publication of US3195516A publication Critical patent/US3195516A/en
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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
    • 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
    • F24H1/40—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating with water tube or tubes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B21/00—Water-tube boilers of vertical or steeply-inclined type, i.e. the water-tube sets being arranged vertically or substantially vertically
    • F22B21/34—Water-tube boilers of vertical or steeply-inclined type, i.e. the water-tube sets being arranged vertically or substantially vertically built-up from water tubes grouped in panel form surrounding the combustion chamber, i.e. radiation boilers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B21/00—Water-tube boilers of vertical or steeply-inclined type, i.e. the water-tube sets being arranged vertically or substantially vertically
    • F22B21/34—Water-tube boilers of vertical or steeply-inclined type, i.e. the water-tube sets being arranged vertically or substantially vertically built-up from water tubes grouped in panel form surrounding the combustion chamber, i.e. radiation boilers
    • F22B21/341—Vertical radiation boilers with combustion in the lower part
    • F22B21/343—Vertical radiation boilers with combustion in the lower part the vertical radiation combustion chamber being connected at its upper part to a sidewards convection chamber
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B37/00—Component parts or details of steam boilers
    • F22B37/02—Component parts or details of steam boilers applicable to more than one kind or type of steam boiler
    • F22B37/10—Water tubes; Accessories therefor
    • F22B37/14—Supply mains, e.g. rising mains, down-comers, in connection with water tubes
    • F22B37/145—Flag-shaped panels built-up from tubes, e.g. from U-shaped tubes

Definitions

  • the invention relates to a water-tube boiler.
  • the invention relates to a type of such boilers which comprise tubes extending from a lower distributor to an upper collector, and being exposed to a radiant heat over a portion of their length.
  • Other tubes, bent U-shaped and projecting into the current of the combustion gases, extend from and open again into the rst mentioned tubes and are shielded against radiation from the furnace by still other tubular members.
  • the invention aims to simplify the structure of the mentioned type of boilers and to reduce the space required by heating surfaces whereby, for the same steam output, a substantial saving of material and labor is achieved in comparison to the conventional boilers.
  • lt is another object of the invention to provide a structure whereby through the connection of a larger number of parallel U-shaped, serpentine tubes, a higher cooling effect is obtained.
  • the serpentine tubes will be cooled the more efficiently the greater the amount of steam created in the tube portions which precede the serpentine tubes, inasmuch as thereby the speed of the steam-water mixture will be acceleratcd and the distribution of the mixture among the U-shaped serpentine tubes, which are connected in parailel, will be improved.
  • special distributors and collectors become unnecessary for the evaporating heating surfaces connected in succession to the furnace, and the U-shaped serpentine tubes can be arranged horizontally whereby much space is saved in the gas llue.
  • the increased steam production in the heating tubes which precede the serpentine tubes causes a high buoyancy eiect which insures a cooling lof the serpentine tubes under all conditions of operation.
  • FIG. l shows a boiler of the invention in front elevational section on the line l-l in FIG. 2;
  • FIG. 2 is a side-elevational sectional view of the boiler of FIG. l taken on the line IL-II;
  • FlG. 3 shows a detail of the boiler in a sectional plan View taken on line Ill-III in FIG l.
  • the drawing shows a boiler of the invention having a flue located above the furnace and passed by the combustion gases in a horizontal direction.
  • the water-tube boiler illustrated includes an insulating brickwork shell conventionally shown at 51 in FIG. 2, and has a carrying framework which is formed by vertical downcomers 31, return pipes 31', longitudinal distributors 32, transverse distributors 32 and 32, longitudinal collectors 33, transverse collector 33 and a drum 34.
  • the front wall and ceiling tubes 35 and the rear wall tubes 3d of the furnace extend from the transverse distributors 32 and 32, respectively.
  • the furnace is furthermore bounded by groups of juxtaposed vertical side wall tubes 33 and 39 which, over a shorter distance of the length of the furnace, extend straight upwards from the longitudinal distributors 32 to the collectors thereabove.
  • U-shaped serpentine tubes are arranged in the flue 55 constituting a heating surface 49 in connection with the tube portions 38" and another heating surface 40' in connection with the tube portions 39 so that the sets of tubes of the heating surface 40 alternate and interengage with the sets of tubes of the surface 40'.
  • the total length of tubes exposed to radiation is increased and thus the evaporation in these tubes is intensified wherefrom a higher speed of ow results in these tubes and consequently a higher cooling effect.
  • the increase of the length of tubes heated by radiation increases the pumping effect in these tubes.
  • a throttling disc 113 having an opening 114 is inserted in the tube portions 38" and 39 between the entrances and exits of the serpentine tubes 40 and 40 to divert the flow of fluid from the tube portions to the serpentine tubes.
  • v 1 In a Water tube boiler, in combination: (a) shell means defining a boilerspace therein. said shell means having a bottom portion, a top portion, and two horizontally spaced opposite side portions connecting said bottom portion andsaid top portion;r
  • each tube extending upward from ⁇ said second portion along said other side portion to connect with said collector system
  • eachserpentine tube having an entrance por- Y ytion'and an exit portion, said portions being Y vertically spaced Vfrom each other and connected to the vthird portionfof the associated heating tube, Y Y Y l
  • the serpentine tubesy associated with each set of heating tubes being horizontally and vertically space and said ue space having respective portions'l ⁇ same l said distributor system to said collector system, (2) the tubes of a second group of juxtaposed heating tubes in each set having each three 1onv gitudinally consecutive portions, Y (3) a first portion extending upward from said distributing system, (4) a second portion extendingy horizontally across said furnace space toward the rst portions of the ytubes of the second group in the other set, and Y (5) a thirdportion extending upward from said f second portion to connect with said rdistributor v system, Y
  • each serpentine tube'connected to the third portion of ay heater'tube of Y ,oneV set being horizontally interposed between two serpencommunicating witheach other, said shell means Vbeing formed with aV gas discharge port communicating with a portion of said ue space spaced from the portion thereof communicatingwithy said lfurnace space,l vsaid portions of said flue Vspace vjointly constituting r a lpath for thetlow of gas from saidfurnace space to said discharge porty in a predetermined direction; p t 1 Y (c) a distributor system;v
  • vshell means defining a boiler space therein and havatopportion Vand a bottomportion;V (b) a partition in said boiler space dividing the same into a furnace space and a flue space, said furnace f space and saidflue space having respective portions communicating with eachother, said shell means being formed with a gas discharge port communicating with a portion of said flue ⁇ space spacedfrom the portion v thereof communicating with said furnace space, ⁇ said portions of said tlue space jointly constituting a path for the flow of gas from said furnace spacev tolsaid discharge port in" a predetermined direction;V V Y I (c) a distributor system; 1'(d),ay collector system upwardly spaced from said 'said shell means and being separated by at least'a portion offsaid boiler space; /f/
  • said second portions of said heating tubes of one set being vertically offsetfrom the second portions of the heating tubes of the other set, said ysecond portions yjointly constituting said partition4 and being spacedvfrom'each rother for communication between said furnace space and Y y Y saidue space through said partition; f s (fs) a, plurality of U-shaped serpentine -tubes in said f.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • General Induction Heating (AREA)
US120050A 1960-07-04 1961-06-27 Water-tube boiler Expired - Lifetime US3195516A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEV18926A DE1149018B (de) 1960-07-04 1960-07-04 Wasserrohrkessel

Publications (1)

Publication Number Publication Date
US3195516A true US3195516A (en) 1965-07-20

Family

ID=7577461

Family Applications (1)

Application Number Title Priority Date Filing Date
US120050A Expired - Lifetime US3195516A (en) 1960-07-04 1961-06-27 Water-tube boiler

Country Status (4)

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US (1) US3195516A ( )
DE (1) DE1149018B ( )
FI (2) FI43320B ( )
NL (1) NL6614275A ( )

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4355602A (en) * 1981-08-10 1982-10-26 Cedar Dunes Investments Ltd. Boiler
US6817319B1 (en) 2003-11-25 2004-11-16 Precision Boilers, Inc. Boiler
US20050205079A1 (en) * 2004-03-19 2005-09-22 Timber Ridge, Inc. Solid fuel burning furnace having a burn control stack

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE718275C (de) * 1938-08-26 1942-03-07 Rheinmetall Borsig Ag Dampferzeuger mit einer Obertrommel und einem von den zur Obertrommel fuehrenden Steigrohren umschlossenen UEberhitzer
FR901866A (fr) * 1943-02-11 1945-08-08 Schweizerische Lokomotiv Chaudière aquatubulaire verticale
CH265298A (it) * 1946-11-20 1949-11-30 Rossi Giovanni Ing Dr Generatore di vapore.
US2993481A (en) * 1957-08-01 1961-07-25 Vorkauf Heinrich Water tube boiler

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US519285A (en) * 1894-05-01 Boiler

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE718275C (de) * 1938-08-26 1942-03-07 Rheinmetall Borsig Ag Dampferzeuger mit einer Obertrommel und einem von den zur Obertrommel fuehrenden Steigrohren umschlossenen UEberhitzer
FR901866A (fr) * 1943-02-11 1945-08-08 Schweizerische Lokomotiv Chaudière aquatubulaire verticale
CH265298A (it) * 1946-11-20 1949-11-30 Rossi Giovanni Ing Dr Generatore di vapore.
US2993481A (en) * 1957-08-01 1961-07-25 Vorkauf Heinrich Water tube boiler

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4355602A (en) * 1981-08-10 1982-10-26 Cedar Dunes Investments Ltd. Boiler
US6817319B1 (en) 2003-11-25 2004-11-16 Precision Boilers, Inc. Boiler
US20050205079A1 (en) * 2004-03-19 2005-09-22 Timber Ridge, Inc. Solid fuel burning furnace having a burn control stack

Also Published As

Publication number Publication date
FI43194B ( ) 1970-11-02
FI43320B ( ) 1970-11-30
NL6614275A ( ) 1966-12-27
DE1149018B (de) 1963-05-22

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