US3741168A - Boiler for the production of hot water - Google Patents

Boiler for the production of hot water Download PDF

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Publication number
US3741168A
US3741168A US00139342A US3741168DA US3741168A US 3741168 A US3741168 A US 3741168A US 00139342 A US00139342 A US 00139342A US 3741168D A US3741168D A US 3741168DA US 3741168 A US3741168 A US 3741168A
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US
United States
Prior art keywords
collar
annular
chamber
boiler
exhaust
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.)
Expired - Lifetime
Application number
US00139342A
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English (en)
Inventor
Keredan R Guillou
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SECCACIER
SOC D ETUDE ET DE CONSTR CHAUDIERS EN ACIER SECCACIER FR
Original Assignee
SECCACIER
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by SECCACIER filed Critical SECCACIER
Application granted granted Critical
Publication of US3741168A publication Critical patent/US3741168A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • F24H1/24—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
    • 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

Definitions

  • the invention relates to a high pressure boiler for use with liquid or gaseous fuels for the production of hot water.
  • This type of construction has the disadvantage of causing perturbations in the evacuation of the gases at the level of the inlets of the tubes, particularly when the burner is started up, these perturbations being due to shock waves which form in the solid parts of the tubular plate.
  • This type of construction produces boilers with a relatively large diameter because of the large number of tubes that are required to obtain a passage of sufficiently large diameter to enable the gases to be evacuated.
  • the object of the present invention is to produce a single combustion chamber boiler in which the annular chamber for the evacuation of the gases has no obstructions avoiding thereby any incidence of turbulence and the body of the boiler is formed by two separate chambers completely surrounded by water, one, in a forward position, forming the single combustion chamber which operates by radiation, the other, in the prolongation of the former forming, with the help of a central smoke outlet with water circulation, a double circuit chamber for evacuating the gases by convection.
  • a characteristic feature of the invention is that the gases escaping from the forward part of the chamber forming the single combustion chamber pass to a second chamber by means of an annular channel formed by the concentric walls of the central unit and the envelope of the body of the boiler.
  • FIG. 1 is a longitudinal cross-sectional view of a method of construction of the boiler.
  • FIG. 2 is the view showing two half cross-sections of the boiler.
  • FIG. 3 is a view showing a longitudinal cross-section of an other method of construction of the boiler.
  • FIG. 4 is a view showing two half cross-sections of the boiler in FIG. 3.
  • the central unit of the body of the boiler is formed by two separate chambers l and 2, entirely surrounded by water.
  • the chambers l and 2 are delimited by a single piece collar 3 which extends along the entire length of the body of the boiler.
  • the chamber 1 called the forward chamber" constitutes a single high pressure combustion chamber operating by radiation.
  • the chamber 2 called the rear chamber" located in the prolongation of the chamber 1 forms a double circuit chamber for the evacuation of the gases by convection, by means of a central smoke outlet 4 delimited by an annular chamber 5.
  • the chambers l and 2 are delimited in the collar 3, each by a flat end piece reference 6 for the chamber 1 and reference 7 for the chamber 2.
  • the space 8 between the two end pieces 6 and 7 is connected with where the water circulates by means of the openings 9 in the portion of the collar 3 located between the chambers l and 2.
  • Some reinforcing struts 10 are provided between the end pieces 6 and 7 of the chambers 1 and 2.
  • the central collar 3 is surrounded by a collar 11 which latter is concentric with it and extends along the entire length of the boiler so as to constitute an external wall common to the chambers 1 and 2 and, with the collar 3, delimiting an annular chamber 12 in which water circulates.
  • the first water chamber delimited by the collars 3 and 11 is surrounded by a collar 13 and by a collar 14 which, between them, form an annular chamber 15 in which water circulates.
  • the gases reach the rear part 6 they move adjacent collar 3 back toward the front of chamber 1 in order to enter via port 16a into the annular space 16 which in turn conducts the gases to the rear part of chamber 2.
  • the gases then pass toward the flat end piece 7 of the .chamber 2 from where they penetrate into the central smoke evacuation duct 4 formed by the inner collar 5 and the water circulation chamber 5.
  • Water is supplied to the boiler by means of an inlet 18 and a tube 19 directly feeding the chamber 12 formed by the collar 3 and the collar 11.
  • the circulating water passes through chamber 12 and, by means of a series of elbow joints 23 then goes into an outer annular chamber 15, the starting point 29 of the hot water being located on the upper genetrix of the collar 14 in an area situated above the chamber 2.
  • the water chamber 5 is supplied by a tube 19, connecting the annular chamber 12 to the annular chamber 5.
  • a median partition 21 placed in a horizontal plane is provided in the water chamber 5, thereby avoiding short-circuiting the water circulation in said chamber.
  • the circulating water in the chamber 5 escapes through the duct 22 which opens out into the upper part of the annular chamber 15.
  • the chamber 15 is excentered with respect to its lower part so as to provide a passage of a diameter which is larger near its lower genetrix than near its upper genetrix, in order to form a decantation chamber that can be cleaned through the inspection ports 24.
  • the forward part of the combustion chamber 1 is closedby a door 25 through which a burner 25a is introduced.
  • the rear part of the chamber 2 is closed by a door in i
  • the entire boiler rests on a stand 27 and the wall 14 of the chamber is insulated against heat by an outside jacket 28.
  • This type of construction is distinguished by the fact that the collar which forms the combustion chamber 1 and thegas exhaust chamber 2 consists of two separate parts 3a and 3b. Each part is closed by a convex end piece 6 in chamber 1 and '7 in chamber 2.
  • the two chambers thus constituted are free to move longitudinally into the space 12 delimited by the collar 11 which enables any expansion due to the heating of the metal to be absorbed without any counter pressure.
  • the water circulates freely in the space 8 between the two end pieces.
  • FIG. 1 and 3 have the same advantages as regards the gas evacuation circuit.
  • the two types of construction enable a boiler of small diameter to be made.
  • a high pressure boiler for use with liquid and gaseous fuels to produce hot water comprising:
  • a burner disposed at one end of said first collar for causing combustion of said gas
  • said first and second annular water passages being of substantially the same length
  • At least one partition disposed within said first collar dividing said first collar into first and second chambers, said burner being disposed at least partially in said first chamber;
  • said gas exhaust being in alternate opposite directions in said first annular exhaust passage, second annular exhaust passage and gaseous exhaust outlet, respectively, whereby the gases are evacuated through said second chamber by convection.

Landscapes

  • 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)
  • Incineration Of Waste (AREA)
  • Heat-Pump Type And Storage Water Heaters (AREA)
US00139342A 1971-03-05 1971-05-03 Boiler for the production of hot water Expired - Lifetime US3741168A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7107815A FR2127425A5 (enExample) 1971-03-05 1971-03-05

Publications (1)

Publication Number Publication Date
US3741168A true US3741168A (en) 1973-06-26

Family

ID=9073076

Family Applications (1)

Application Number Title Priority Date Filing Date
US00139342A Expired - Lifetime US3741168A (en) 1971-03-05 1971-05-03 Boiler for the production of hot water

Country Status (8)

Country Link
US (1) US3741168A (enExample)
BE (1) BE766288A (enExample)
CH (1) CH527397A (enExample)
DE (1) DE2121619A1 (enExample)
FR (1) FR2127425A5 (enExample)
GB (1) GB1320101A (enExample)
LU (1) LU63034A1 (enExample)
NL (1) NL7106404A (enExample)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4263878A (en) * 1978-05-01 1981-04-28 Thermo Electron Corporation Boiler

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8422811D0 (en) * 1984-09-10 1984-10-17 Burco Dean Ltd Water heating apparatus
DE3640503C1 (de) * 1986-11-27 1988-03-24 Babcock Werke Ag Heizungskessel fuer eine Niedertemperaturheizung

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4263878A (en) * 1978-05-01 1981-04-28 Thermo Electron Corporation Boiler

Also Published As

Publication number Publication date
BE766288A (fr) 1971-09-16
DE2121619A1 (de) 1972-09-14
FR2127425A5 (enExample) 1972-10-13
CH527397A (fr) 1972-08-31
GB1320101A (en) 1973-06-13
LU63034A1 (enExample) 1971-08-26
NL7106404A (enExample) 1972-09-07

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