US1918397A - Firing of steam boilers - Google Patents

Firing of steam boilers Download PDF

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Publication number
US1918397A
US1918397A US518761A US51876131A US1918397A US 1918397 A US1918397 A US 1918397A US 518761 A US518761 A US 518761A US 51876131 A US51876131 A US 51876131A US 1918397 A US1918397 A US 1918397A
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gases
combustion
wall
boiler
steam
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Expired - Lifetime
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US518761A
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English (en)
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Jezler Hubert
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN  A CARRIER GAS OR AIR 
    • F23C3/00—Combustion apparatus characterised by the shape of the combustion chamber
    • F23C3/006—Combustion apparatus characterised by the shape of the combustion chamber the chamber being arranged for cyclonic combustion
    • F23C3/008—Combustion apparatus characterised by the shape of the combustion chamber the chamber being arranged for cyclonic combustion for pulverulent fuel
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S122/00—Liquid heaters and vaporizers
    • Y10S122/07—Feeding air

Definitions

  • H. JEZLER FIRING OF STEAM BQILERS Filed Feb. 27. 1931 3 Sheets-Sheet l July18, 1933.
  • H. JEzLER I FIRING OF STEAM BOILERS Filed Feb. 27. 1931 July 18, 1933.
  • H JEZLER FIRING oF STEAM BOILERS Filed Feb. 27. 1931v 3 Sheets-Sheet 5 IIIL Patented July 18, 1933 UNITED STATE-s PATENT OFFICE HUBERT J EZLER, OF ZURICH, SWITZERLAND 'FIRING OF STEAM IBOTLERS Application filed February 27, 1931, Serial No. 518,761, and in Switzerland March 5, 1930.
  • nozzles may be used and they may be arranged at any suitable position to initiate and to maintain a turbulent rotary stream of hot lgases advancing in the direction of the axis of the boiler and being throttled thereby by suitable means.
  • Steam, additional freshair, additional fuel, etc. may be introduced in the rotating mass.
  • the stream of the gases may follow a helical or a spiral path, and the advancing speed of the rotating gas may The rotating. 5 vgases are forced closely against the wall as aJ be varied by varying the angle at which the gases enter the combustion space. /To improve the efficiency further an outlet is pro vided for the solid products of combustion, said products being thrown out for instance through said outlet by the centrifugal action of the rotating' gas.
  • Fig. l is an axial section through a boiler showing th new method of firing with oil.
  • Fig. 2 ⁇ is a cross-section on line II--II of Fig. l through the combustion space of the 55 boiler.
  • Figs. 3 and 4 show another boiler adapted to be used for carrying :out my invention;
  • Fig. 3 is an axial section through the boiler zlind
  • Fig. 4 is a section ⁇ on line IV-IV of 70 ig. 3.
  • Fig. 5 illustrates an axial section through another form of boiler construction for carrying out my invention, and
  • Fig. 6 is a cross-section taken von line 75 VI-VI of Fig. 5.
  • a cylindrical flame tube 2 In a drum boiler l, (Figs. l and 2) is itted a cylindrical flame tube 2.
  • the llame tube widens out at one end of the boilerto form a cylindrical combustion space 3 into 80 which a combustion air inlet 4 with a fuel nozzle or burner 5 is tangentially directed.
  • On the outer periphery of the combustion space there is provided anl auxiliaryair inlet 6, and a live or exhaust steam nozzle 7.
  • the manhole of the combustion space isv closed,y by a cover 8.
  • the flame tube may have a larger internal diameter for example corresponding to the dotted outline 9. It is only essential in this case thatv there should be -left a collar 10 so that a cylindrical combustionspace remains to receive the continuously rotating mass of heating gas.
  • the ignited combustion mixture is ejected sel as a result o the centrifugal action taking place.
  • the increase in pressure of the glowing gas against the wall, and the y'1ncrease in speed of said gas serve to lncrease l the degree of heat transmission.
  • the combustion space may be partly lined with a refractory material as for example carborundum, or the like, or with ire resisting metal as shown in Fig. 3. i
  • the heating in accordance with the present invention, may in some cases be used in combination with other known heating means or methods.
  • the boiler 11 is provided with a cylindrical flame tube 12, one end of the boiler being recessed and refractory material 13 covering the wall of said recess.
  • the burner 1 4 comprises an annular channel 15 with a pipe 16 VAdow of transparent material.
  • a hole 19 serves for ignition purposes, and is closed in a well known manner with a win- 15 is provided with vanes 20 which may be movable or rigid.
  • YThevanes 20 direct the fuel tangentially around the centre of the combustion space preferably at a steep angle with reference to the axis of the combustion space. The fuel forced into the combustion space ignites in coming in contact with the hotl gases of combustion. To start the firing of the fuel an ignition device may be insert- 4ed through hole 19.
  • the entering fuel flows in a more or less close spiral path in the direction of the longitudinal axis, the iame rotatj ing around the hollow cylindrical. wall, and traveling .in the direction of the axis at a speed varying according to the position of the vanes 20.
  • auxiliary fresh air and live steam is forced into the 'rotating burning fuel by nozzles, 21, 22, or
  • a row of slots or holes maybe provided.
  • the ridge 27 throttles the How of gases, and by natural p vonly to generate or superheat steam, but for ovens or any other purposes where very in tensive radiation of heat is required.
  • the cross-section of the combustion chamberA is preferably circular but may be. oval or otherwise.
  • FIG. 5 Another boiler to which the new princi- Y ple is applied is shown in Figs. 5 and 6.
  • the screen 37 throttling the axial flow of the gases consists of water pipes which may be connected to a water feed device and the water can be preheated therein.
  • the solid particles are thrown olf by centrifugal action into a collecting chestl 38.
  • the steam raised in the collector 34 passes through a coil 40 and is superheated thereby by the escaping gases.
  • a boiler as shown may be used for locomotives.
  • The, pressure Within the pipe 32 is kept high to preventebullition practically no steam being generated ,inV saidv tubes.
  • the tubes being constantly water cooled do not get overheated at the very high temperature vof the rotating gases. i
  • a method of heating a liquid in a boiler having a combustion chamber of circular section, the wall of ⁇ which is in contact with the liquid toy be heated including the steps of introducing combustion gases' at high velocity tangentially into said chamber, and
  • a method of heating a liquid in a boiler having a combustion chamber of a circular section, the outside wall of said combustion chamber being in contact with the liquid to be heated including the steps of delivering hot Ycombustion gases at high speed tangentially into said chamber, whereby said gases are forced against the cylindrical surface of said combustion chamber, and made to follow a helical path along said surface, obstructing the spiral passage of the gases at a section in said chamber, causing the solidresidues entrained' in said combustion gas-to separate from said gas by the centrifugal fonce of said rotative action', and collecting said residues ⁇ v at said section.
  • a methodv of heating a liquid in a' boiler having an annular Water chamber encircling the heating chamber which includes thestep of projecting combustion gases at ⁇ high.tem perature from points outside of the peripheral wall of said heating chamber inwardly of said heating chamber and substantially tangentially to said wall at. such velocity as to cause said' gases to be dynamically forced against said wall and to advance along the wall in a helical path of low pitch.
  • a method of heating a cylindrical wall which includes the ⁇ steps of projecting combustion gases at high temperature from points outside of said wall inwardly of said wall and substantially tangentially thereof at such velocity as to cause said gases to.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
US518761A 1930-03-05 1931-02-27 Firing of steam boilers Expired - Lifetime US1918397A (en)

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CH1918397X 1930-03-05

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FR (1) FR713080A (fr)

Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2443575A (en) * 1943-04-23 1948-06-15 Harvey Whipple Inc Burner head for boilers
US2518800A (en) * 1948-07-14 1950-08-15 Sr George T Lester Furnace for burning comminuted fuel, including tangential air feed
US2609040A (en) * 1950-03-14 1952-09-02 Elliott Co Combustion apparatus using compressed air
US2616256A (en) * 1946-09-16 1952-11-04 Babcock & Wilcox Co Gas turbine plant using solid ash-containing fuel
US2635564A (en) * 1948-09-15 1953-04-21 Power Jets Res & Dev Ltd Combustion system for pulverulent fuel
DE902770C (de) * 1949-10-28 1954-01-28 Babcock & Wilcox Dampfkessel W Brennstaubfeuerung fuer Schmelzkammerkessel
US2698050A (en) * 1949-06-10 1954-12-28 Lummus Co Combustion for liquid fuels
US2738776A (en) * 1951-06-13 1956-03-20 Pollopas Patents Ltd Furnace burners
US2800093A (en) * 1951-06-13 1957-07-23 Pollopas Patents Ltd Apparatus for burning pulverized fuel
US2859103A (en) * 1958-11-04 Greco
US2863749A (en) * 1958-12-09 Process for thegprodtction of synthesis
US2907288A (en) * 1952-09-20 1959-10-06 Svenska Maskinverken Ab Furnaces
DE973162C (de) * 1941-03-07 1959-12-10 Babcock & Wilcox Dampfkessel W Vorrichtung zum Verbrennen von grobzerkleinerten, aschehaltigen, festen Brennstoffen in einer kreiszylindrischen, feuerfesten, wandgekuehlten Muffel
DE974562C (de) * 1941-04-17 1961-02-09 Aeg Feuerung fuer fluessige, gasfoermige oder staubfoermige Brennstoffe
DE975219C (de) * 1951-08-30 1961-10-05 Steinmueller Gmbh L & C Aus Kuehlrohren gebildete Brennkammer
US3050112A (en) * 1960-09-02 1962-08-21 Eclipse Fuel Eng Co Radiant gas burner
DE976588C (de) * 1941-03-07 1963-12-05 Babcock & Wilcox Dampfkessel W Dampferzeuger mit Schmelzkammerfeuerung
US3244641A (en) * 1957-05-24 1966-04-05 Heizmotoren Ges M B H Apparatuis for producing smoke or fog
US3597141A (en) * 1968-08-07 1971-08-03 Siemens Ag Burner device for fluidic fuels
US3974021A (en) * 1974-08-27 1976-08-10 Mikhail Naumovich Bernadiner Process and cyclone reactor for fire decontamination of industrial waste water containing organic and refractory mineral impurities
US4052266A (en) * 1973-05-11 1977-10-04 Griffith Joseph W Method and apparatus for purifying process waste emissions

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE976956C (de) * 1938-12-29 1964-09-03 Kohlenscheidungs Ges Mit Besch Kohlenstaub-Schmelzfeuerung
DE920387C (de) * 1949-04-17 1954-11-22 Steinmueller Gmbh L & C Staubfeuerung mit einer waagerecht oder leicht geneigt angeordneten Zyklonkammer mitzentralem Flammenauslass
DK0852686T3 (da) * 1995-09-28 2001-11-12 Vapo Oy Fremgangsmåde og reaktor til behandling af brændsler med en bred fordeling af partikelstørrelser

Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2863749A (en) * 1958-12-09 Process for thegprodtction of synthesis
US2859103A (en) * 1958-11-04 Greco
DE976588C (de) * 1941-03-07 1963-12-05 Babcock & Wilcox Dampfkessel W Dampferzeuger mit Schmelzkammerfeuerung
DE973162C (de) * 1941-03-07 1959-12-10 Babcock & Wilcox Dampfkessel W Vorrichtung zum Verbrennen von grobzerkleinerten, aschehaltigen, festen Brennstoffen in einer kreiszylindrischen, feuerfesten, wandgekuehlten Muffel
DE974562C (de) * 1941-04-17 1961-02-09 Aeg Feuerung fuer fluessige, gasfoermige oder staubfoermige Brennstoffe
US2443575A (en) * 1943-04-23 1948-06-15 Harvey Whipple Inc Burner head for boilers
US2616256A (en) * 1946-09-16 1952-11-04 Babcock & Wilcox Co Gas turbine plant using solid ash-containing fuel
US2518800A (en) * 1948-07-14 1950-08-15 Sr George T Lester Furnace for burning comminuted fuel, including tangential air feed
US2635564A (en) * 1948-09-15 1953-04-21 Power Jets Res & Dev Ltd Combustion system for pulverulent fuel
US2698050A (en) * 1949-06-10 1954-12-28 Lummus Co Combustion for liquid fuels
DE902770C (de) * 1949-10-28 1954-01-28 Babcock & Wilcox Dampfkessel W Brennstaubfeuerung fuer Schmelzkammerkessel
US2609040A (en) * 1950-03-14 1952-09-02 Elliott Co Combustion apparatus using compressed air
US2800093A (en) * 1951-06-13 1957-07-23 Pollopas Patents Ltd Apparatus for burning pulverized fuel
US2738776A (en) * 1951-06-13 1956-03-20 Pollopas Patents Ltd Furnace burners
DE975219C (de) * 1951-08-30 1961-10-05 Steinmueller Gmbh L & C Aus Kuehlrohren gebildete Brennkammer
US2907288A (en) * 1952-09-20 1959-10-06 Svenska Maskinverken Ab Furnaces
US3244641A (en) * 1957-05-24 1966-04-05 Heizmotoren Ges M B H Apparatuis for producing smoke or fog
US3050112A (en) * 1960-09-02 1962-08-21 Eclipse Fuel Eng Co Radiant gas burner
US3597141A (en) * 1968-08-07 1971-08-03 Siemens Ag Burner device for fluidic fuels
US4052266A (en) * 1973-05-11 1977-10-04 Griffith Joseph W Method and apparatus for purifying process waste emissions
US3974021A (en) * 1974-08-27 1976-08-10 Mikhail Naumovich Bernadiner Process and cyclone reactor for fire decontamination of industrial waste water containing organic and refractory mineral impurities

Also Published As

Publication number Publication date
FR713080A (fr) 1931-10-21

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