US3563225A - Warm air units - Google Patents

Warm air units Download PDF

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Publication number
US3563225A
US3563225A US772268A US3563225DA US3563225A US 3563225 A US3563225 A US 3563225A US 772268 A US772268 A US 772268A US 3563225D A US3563225D A US 3563225DA US 3563225 A US3563225 A US 3563225A
Authority
US
United States
Prior art keywords
wall
tank
airflow passage
air
airflow
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
US772268A
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English (en)
Inventor
Mario M Masrieh
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Application granted granted Critical
Publication of US3563225A publication Critical patent/US3563225A/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
    • F24H6/00—Combined water and air heaters
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C13/00—Stoves or ranges with additional provisions for heating water

Definitions

  • Harpman ABSTRACT A warm air producing unit in which an airflow chamber and a tank for the bulk storage of liquid are both heated by a common combustion chamber is characterized in that part of the surface area of the tank is exposed directly to the heat generated in the combustion chamber so that the water in the tank may be heated, and part of the surface area of the tank is swept over by at least some of the airflow in the airflow chamber, the ratio of the two areas being such that when the combustion gases have heated the water in the tank to a predetermined temperature the heat loss from the contents of the tank to said airflow is sufficient to prevent said predetermined temperature from being exceeded.
  • the warm air developing unit disclosed herein comprises a combustion chamber, one or more airflow chambers through which an airflow can be created, andfiatank forstoring a bulk supply of liquid, characterized in that part of the surface area of the tank is exposed directly to theheat generated .in the combustion chamber so that water in the tank may be-heated, and part of the surface area of the tank is swept over;by at least someof said airflow, the ratio of said areas being. such that when the combustion gases have heated therwater in the tank to a predetermined temperature the heat loss from the contents of the tank to said airflow is sufficient toprevent said predetermined temperature from being exceeded.
  • one or more of said airflow chambers havesurfaces exposed directly to the heat generated in the combustion chamber.
  • the warm air unit comprises a combustion chamber 1 in which is aflame rim 2.
  • the burning gases 2A rising from the flame rim 2 pass up an annular-flue flow path 3 defined by an outer wall 3A and a further wall 3B and escape via a stack 4.
  • the annular-flue'flow path 3 surrounds an annular airflow chamber 5 to which air is supplied at the lower end chamber 5 defined by the outer wall 3A and an inner annual wall 5A and air is supplied at the lower end of chamber 5 by ducting 6
  • the air in the chamber 5 is heated by the burning or burnt gases 2A passing up the annular flow path 3 and eventually escapes via an outlet 7 where the heated air is distributed through suitable ducting'(not shown) to the point where hot air is required.
  • the annular airflow chambers surroundsthe inner wall 5A which forms the vertical sides of a hot water tank 8, the tank 8 has an upper transversely extending wall-8A and a lower transversely extending wall 88 or base tank 8 being of sufficientvolume to accommodate a bulk supply of :hot water, for example to gallons depending uponthe size of the. warm air unit.
  • the lower wall 8B OIlbZiSB, of the hot water tank 8 is exposed to the combustion gases in the combustion chamber 1, but that the inner wall 5A which forms the side walls of the water tank 8 are swept over by the air being drawn throughthe airflow chamber 5;
  • the storage capacity of the, tank'and enact the tank that is exposed directly to the heat generated in the combustion chamber are such as to provide a supply of hot water sufficient to meet the demands of a predetermined domestic requirement.
  • the inner wall of the inner airflow chamber surrounds some of the water in said tank.
  • the two airflow chambers may each be of annular shape, the inner wall of the inner airflow chamber having upper and lower closures such that at least-some of said inner wall and said upper and lower closures cooperatetofdeflne said tank.
  • the lower closure'of the tank that may be heat generated in the combustion chamber.
  • the burning or burnt gases passing up the flow path 3 transmit heat to I both the chamber 5 and the chamber 9, both chambers receiving air at their lower ends by means of a blower 11 mounted at the base of the unit and passing hot air out via exits 7 and 10 respectively.
  • the blower 11 is illustrated as being below the combustion chamber.
  • the water tank 8 may be fitted with an electrical immersion heater for use during the summer months and may be so wired electrically that it is impossible for said immersion heater to be energized when the flame rim 2 is in operation.
  • combustion chamber 1 may be fired by any suitable means and that said means is not necessarily the aforesaid flame rim 2.
  • a warm air developing unit comprising inner and outer walls defining between them an upwardly extending annularshaped airflow passage, the inner wall of said airflow passage having spaced apart transversely extending upper and lower walls defining between them in association with said inner wall a tank for storing a bulk supply of water, a further wall defining a combustion chamber surrounding said outer wall and depending below said lower transversely extending wall such that the combustion gases generated below said lower transversely extending wall can act directly on said lower transversely extending wall, the space between said outer wall and said further wall acting as a flow path for the combustion gases around the annular-shaped airflow passage, air inlet ducting passing through said further wall to the airflow passage, and an air outlet opening in the unit permitting air to escape from the upper end of said airflow passage, the surface area of the tank that is surrounded by said airflow passage being such that when the water in thetank has been heated to a predetermined temperature by the combustion gases the heat loss from the water in the tank to the air flowing through said airflow passage is sufficient to prevent said

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Heat-Pump Type And Storage Water Heaters (AREA)
  • Fluidized-Bed Combustion And Resonant Combustion (AREA)
US772268A 1968-08-08 1968-10-31 Warm air units Expired - Lifetime US3563225A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB37827/68A GB1175798A (en) 1968-08-08 1968-08-08 Improvements in or relating to Heating Units

Publications (1)

Publication Number Publication Date
US3563225A true US3563225A (en) 1971-02-16

Family

ID=10399287

Family Applications (1)

Application Number Title Priority Date Filing Date
US772268A Expired - Lifetime US3563225A (en) 1968-08-08 1968-10-31 Warm air units

Country Status (8)

Country Link
US (1) US3563225A (es)
AT (1) AT301117B (es)
BE (1) BE724197A (es)
CH (1) CH486675A (es)
DE (1) DE1808542A1 (es)
FR (1) FR1592426A (es)
GB (1) GB1175798A (es)
NL (1) NL6815853A (es)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4748968A (en) * 1982-11-02 1988-06-07 Veg-Gas Instituut N.V. Gas fired device for generating heat for dwelling
US6109339A (en) * 1996-07-15 2000-08-29 First Company, Inc. Heating system

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3721454A1 (de) * 1987-06-30 1989-01-12 Karl Flanderka Heizungsanlage
CN111879005B (zh) * 2020-08-27 2024-07-16 浙江工业大学 一种集成灶和热水器双温热源供热系统

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US24590A (en) * 1859-06-28 Apparatus foe
US574447A (en) * 1897-01-05 Necticut
US1363555A (en) * 1918-06-26 1920-12-28 Earl S Beattle Furnace
US2269055A (en) * 1939-08-25 1942-01-06 Gower Thomas Charles Split heating system
GB993937A (en) * 1964-02-26 1965-06-02 Christian Ditlev Ammentorp Improvements in or relating to air heaters

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US24590A (en) * 1859-06-28 Apparatus foe
US574447A (en) * 1897-01-05 Necticut
US1363555A (en) * 1918-06-26 1920-12-28 Earl S Beattle Furnace
US2269055A (en) * 1939-08-25 1942-01-06 Gower Thomas Charles Split heating system
GB993937A (en) * 1964-02-26 1965-06-02 Christian Ditlev Ammentorp Improvements in or relating to air heaters

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4748968A (en) * 1982-11-02 1988-06-07 Veg-Gas Instituut N.V. Gas fired device for generating heat for dwelling
US6109339A (en) * 1996-07-15 2000-08-29 First Company, Inc. Heating system

Also Published As

Publication number Publication date
NL6815853A (es) 1970-02-10
FR1592426A (es) 1970-05-11
CH486675A (de) 1970-02-28
BE724197A (es) 1969-05-02
AT301117B (de) 1972-07-15
DE1808542A1 (de) 1970-02-12
GB1175798A (en) 1969-12-23

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