US3640458A - Hot air generator with variable length conduit - Google Patents

Hot air generator with variable length conduit Download PDF

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Publication number
US3640458A
US3640458A US32545A US3640458DA US3640458A US 3640458 A US3640458 A US 3640458A US 32545 A US32545 A US 32545A US 3640458D A US3640458D A US 3640458DA US 3640458 A US3640458 A US 3640458A
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US
United States
Prior art keywords
sleeve
outer sleeve
adjacent
interconnected
heating means
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
US32545A
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English (en)
Inventor
Paul Marie Perrinet
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SEMIA
Original Assignee
SEMIA
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Publication date
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Publication of US3640458A publication Critical patent/US3640458A/en
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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
    • F24H3/00—Air heaters
    • F24H3/02—Air heaters with forced circulation
    • F24H3/06—Air heaters with forced circulation the air being kept separate from the heating medium, e.g. using forced circulation of air over radiators
    • F24H3/08—Air heaters with forced circulation the air being kept separate from the heating medium, e.g. using forced circulation of air over radiators by tubes
    • F24H3/087—Air heaters with forced circulation the air being kept separate from the heating medium, e.g. using forced circulation of air over radiators by tubes using fluid fuel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D5/00—Hot-air central heating systems; Exhaust gas central heating systems

Definitions

  • Appl 32545 The invention relates to the art of hot air heating system, more particularly of the type having a plurality of interconnected [30] Foreign Application Priority Data units each including an inner and outer sleeve spaced to define an annular chamber therebetween with a heat generating May 2, 1969 France 6912362 means assaciated with the first of Said units and having an as sociated blower or suction fan to draw ambient air into the [52] U.S.
  • ducts may be connected to the outlet of the heat exchanger and these ducts can extend to all portions of the area to be heated with the ducts having associated outlets along their length.
  • the heating system comprises a plurality ofindividual units each having an outer sleeve and an inner sleeve coaxial therewith, said inner sleeve being spaced from the outer sleeve to define an annular chamber therebetween through which air may flow substantially unimpeded.
  • the individual units are designed so that they may readily be interconnected to provide two distinct passageways, one formed by the interconnected inner sleeves and the other formed by the interconnected outer sleeves, the outer passageway defining a heat exchanger chamber and the inner passageway defining a combustion chamber.
  • the inlet end of the system is provided with a suction fan which is designed to bring ambient air into the system and to force air through the two passageways.
  • the end of the interconnected inner sleeves adjacent the fan is provided with heating means so that the air passing through such inner sleeve will be heated by the heating means and will heat the air in the outer passageway or heat exchanger chamber, the outer sleeve being provided with suitable outlets along its length in order to discharge hot air into the various regions to be heated.
  • the remote end of the interconnected units is provided with a closure plate which has a discharge pipe extending therethrough that is connected at its inner end to the adjacent end of the innermost sleeve for venting of the gases therein.
  • FIG. 1 is a side elevational view partly in cross section ofthe heat generating end of the system
  • FIG. 2 is a side elevational view with parts broken away of the system showing a number ofinterconnected units
  • FIG. 3 is a transverse sectional view showing the positioning tabs and outlets.
  • FIG. 4 is a view similar to FIG. 3 taken along line 44 of FIG. 2.
  • reference numeral 1 refers to the outer cylindrical sleeve of the heat generator unit which concentrically receives inner sleeve 2, the latter being located in sleeve 1, illustratively by means of three tabs 3, 341, 3-1), spaced 120 apart.
  • the sleeve 1 has an air inlet opening 4 at its outer end and an inspection port 4-a is also provided in sleeve 4 adjacent the air inlet end 4 to permit adjustment of the heating means which may be a fuel burner 10.
  • the air inlet system comprises a suction fan 5, actuated by an electric motor 6, to which is connected, at the other end of its shaft, a fuel feed pump 7.
  • the end of sleeve 2 adjacent the air inlet opening 4 carries a plate provided with passages 8 associated with a Venturi device 9.
  • the burner 10 provided with an electrovalve 11, at the end of the burner adjacent the fan 5.
  • An ignition electrode 12 of known type is provided for burner 10.
  • a flange 14 is provided on sleeve 1 adjacent end 13 thereof for mounting the next unit.
  • a flange 15 is provided adjacent the end 13-0 of sleeve 2 for mounting of the inner sleeve 2 of the next unit.
  • FIG. 2 is shown the outer sleeves l-a, l-b, I-c, l-d and I-e of a plurality of interconnected units, the sleeve ll-a being connected to the sleeve I of the first unit shown in FIG. I.
  • the end of sleeve ll-e at the termination of the system is closed by a plate 16.
  • FIG. 2 Also shown in FIG. 2 are the inner sleeves 2-a, 2-b, Z- c, 2-11 and 2-e of the plurality of interconnected units, the sleeve 2-a being connected to sleeve 2 of the first unit shown in FIG. 1.
  • the end of sleeve l-e at the termination of the system is frustoconical in shape, its small diameter end being secured to a discharge tube 17 which extends through a central opening in plate 16.
  • the outer sleeve l-a has radial outlets 18, l8-a for distribution of hot air.
  • the outlets 18, 18-11 which are in the form of sleeves positioned in a horizontal plane, are provided respectively with deflectors 19 and 19-11.
  • Suspension collars 20 are provided encompassing sleeve l-a.
  • the outer sleeve l-d has radial outlets 22, 22-0 for distribution of hot air.
  • the outlets 22, 22-11 are also in the form of downwardly directed sleeves whose axes form an angle of and are provided respectively with deflectors 23 and 23-a.
  • the outer sleeves between sleeves I and Le have at one end a mounting flange identical to the flange 14 of sleeve 1.
  • the inner sleeves between sleeves 2 and 2-e have at one end a flange identical to flange 15 on sleeve 2, and each has at its other end a groove for the said flanges on adjoining units to permit ready coupling.
  • the annular space between the inner and outer sleeves 1 and 2 forms the chamber ofthe heat exchanger.
  • the frustoconical sleeve 2-e could appear as at 2-f in dotted lines, the discharge tube l7-a passing through the outside sleeve ll-d.
  • the heating system above described has great flexibility in that it is very simple to add, as desired, any reasonable number of heating units dependent upon the size of the area to be heated. By reason of the fact that the combustion chamber extends the entire length of the system, there will be a maximum transfer of hot air through the entire system with resultant high efficiency of the system.
  • a heat generating system comprising a plurality of interconnected units each unit comprising an outer sleeve, an inner sleeve positioned in said outer sleeve coaxial therewith and spaced from said outer sleeve to define an annular chamber therebetween, a blower positioned in the outer sleeve adjacent one end of the system and designed to suck ambient air into the system and to force such ambient air through the interconnected inner sleeves which defines a combustion chamber and outer sleeve which defines a heat exchanger chamber, heating means positioned in the end of the inner sleeve adjacent the fan, a closure plate at the other end ofthe system, a discharge pipe extending through said closure plate and connected at its inner end to the adjacent end of the inner sleeve, said outer sleeve having a plurality of discharge outlets spaced along the length thereof.
  • heating means is a fluid type burner and an ignition element is associated with said burner, said outer sleeve having a port therethrough to provide access to said burner for adjustment thereof.

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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)
  • Direct Air Heating By Heater Or Combustion Gas (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
US32545A 1969-05-02 1970-04-28 Hot air generator with variable length conduit Expired - Lifetime US3640458A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR6912362A FR2043872A5 (enrdf_load_stackoverflow) 1969-05-02 1969-05-02

Publications (1)

Publication Number Publication Date
US3640458A true US3640458A (en) 1972-02-08

Family

ID=9032740

Family Applications (1)

Application Number Title Priority Date Filing Date
US32545A Expired - Lifetime US3640458A (en) 1969-05-02 1970-04-28 Hot air generator with variable length conduit

Country Status (6)

Country Link
US (1) US3640458A (enrdf_load_stackoverflow)
CH (1) CH529980A (enrdf_load_stackoverflow)
DE (1) DE2021486A1 (enrdf_load_stackoverflow)
ES (1) ES378400A1 (enrdf_load_stackoverflow)
FR (1) FR2043872A5 (enrdf_load_stackoverflow)
NL (1) NL7006434A (enrdf_load_stackoverflow)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2289082A (en) * 1941-05-27 1942-07-07 Gen Electric Air conditioning system
US2470996A (en) * 1942-10-26 1949-05-24 Honeywell Regulator Co Burner control system
US2495550A (en) * 1944-05-26 1950-01-24 Tech Studien Ag Operating gas heater for thermal power plants

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2289082A (en) * 1941-05-27 1942-07-07 Gen Electric Air conditioning system
US2470996A (en) * 1942-10-26 1949-05-24 Honeywell Regulator Co Burner control system
US2495550A (en) * 1944-05-26 1950-01-24 Tech Studien Ag Operating gas heater for thermal power plants

Also Published As

Publication number Publication date
DE2021486A1 (de) 1971-01-28
FR2043872A5 (enrdf_load_stackoverflow) 1971-02-19
CH529980A (fr) 1972-10-31
ES378400A1 (es) 1972-06-16
NL7006434A (enrdf_load_stackoverflow) 1970-11-04

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