EP0262263A1 - Lufterhitzer - Google Patents

Lufterhitzer Download PDF

Info

Publication number
EP0262263A1
EP0262263A1 EP86201715A EP86201715A EP0262263A1 EP 0262263 A1 EP0262263 A1 EP 0262263A1 EP 86201715 A EP86201715 A EP 86201715A EP 86201715 A EP86201715 A EP 86201715A EP 0262263 A1 EP0262263 A1 EP 0262263A1
Authority
EP
European Patent Office
Prior art keywords
air
housing
reservoir
wall
heated
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.)
Granted
Application number
EP86201715A
Other languages
English (en)
French (fr)
Other versions
EP0262263B1 (de
Inventor
Joannes Marie Van Heel
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
Priority to AT86201715T priority Critical patent/ATE85693T1/de
Priority to DE8686201715T priority patent/DE3687754T2/de
Publication of EP0262263A1 publication Critical patent/EP0262263A1/de
Application granted granted Critical
Publication of EP0262263B1 publication Critical patent/EP0262263B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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

Definitions

  • the present invention relates to an air heating apparatus comprising a housing including means for conducting air to be heated through the housing and means for heating the air conducted through the housing.
  • air is usually heated directly by suitable means, e.g. gas burners.
  • suitable means e.g. gas burners.
  • a drawback thereof is that relatively large temperature variations may occur.
  • the burners are set in operation automatically or non-automatically and relatively hot air is passed into spaces to be heated.
  • the burners are switched off.
  • transport of air takes place through the apparatus, entirely unheated air will rapidly enter the spaces to be heated, thereby producing cooling.
  • cooling will also occur until the burners are reactivated.
  • the heat supply thus takes place shockwise and, with a view to a comfortable heating, steps are necessary to dampen these shocks.
  • the object set is achieved according to the present invention with an apparatus in which, in the substantially cylindrical housing, the means for heating the air comprise at least one hot-water reservoir disposed along the major part of the length of the housing, said reservoir including a supply and a discharge pipe, as well as means for heating the water in said at least one reservor, the ratio of outside diameter to the length of the hot-water reservoir ranging between 1:3 to 1:30.
  • a hot-water supply is integrated in the hot-air heating system.
  • the air is heated via the hot-water reservoir, which as it were serves as a thermal storage.
  • the hot-water reservoir in the apparatus according to the present invention should have a slender form in order to ensure optimum heating of the air at a low water capacity.
  • a diameter-to-length ratio of 1:3 is a minimum condition therefor.
  • a low water capacity is required to avoid, as is the case sometimes with conventional storage vessels, boilers and the like, that a large water supply is kept unnecessarily at the required temperature.
  • a small reservoir with such a heat supply e.g. by means of a gas burner, that when water is being drained off from the reservoir, even during a prolonged period, e.g. for filling a bath, the heating of freshly supplied water, keeps pace therewith, results in a highly economical construction.
  • the walls of the hot-water reservoir are formed by two concentric cylinders, there being provided in the interior of the inner cylinder a space wherein a gas burner is arranged in its bottom portion, and from the top of which combustion gases can be discharged, while between the outer concentric cylinder and the inner wall of the substantially cylindrical housing, there is provided an annular space through which the air to be heated can be conducted.
  • the annular, cylindrical water reservoir forms so to say a buffer between the combustion space and the space through which the air to be heated is passed.
  • the walls of the hot-water reservoir are formed by two concentric cylinders, the outer concentric cylinder being directly contiguous with the inner wall of the substantially cylindrical housing and there being provided within the inner concentric cylinder a space bounded by a likewise concentric cylinder wall, in which s pace a gas burner is arranged adjacent its lower end and from the top of which combustion gases can be discharged, the inner concentric cylinder and the concentric cylinder wall defining an annular space between them, through which space the air to be heated can be passed, said annular space containing a material having good thermal conductivity and contacting the inner concentric cylinder and the concentric cylinder wall, which material is such that passage of the air to be heated through the annular space is not prevented.
  • the space for the air to be heated is disposed between the water reservoir and the combustion space.
  • Transfer of heat between the wall of the combustion space and the wall of the water reservoir takes place by the material having good thermal conductivity therebetween, e.g. a network of metal wire or wire mesh.
  • a network of relatively thin wires hardly impedes the passage of air through the space.
  • the apparatus according to the present invention has the form of a cylinder arranged concentrically in the substantially cylindrical housing, with the dimensions of that cylinder being such that between the inner wall of the housing and the outer wall of that cylinder, there is provided an annular space through which the air to be heated can be passed.
  • the walls of the hot-water reservoir are formed by two concentric cylinders, with the outer concentric cylinder being practically directly contiguous with the inner wall of the housing and there being provided within the inner concentric cylinder a space through which the air to be heated can be conducted.
  • no gas burners are provided for heating the water, but this heating takes place in a different manner, e.g. by electric resistance heating.
  • FIG. 1-4 are cross-sectional views illustrating said embodiments of the present invention.
  • the embodiment of the apparatus according to the present invention shown in Fig. 1 comprises a substantially cylindrical housing 1.
  • the wall of the housing 1 consists of a thermally insulating material or of two thin cylinders of sheet metal between which there is sandwiched a thermally insulating material, such as glass wool or the like.
  • Housing 1 is covered at its top by a cover 2, consisting e.g. of the same material, or built up similarly to the cylindrical housing 1.
  • Housing 1 accommodates an annular, cylindrical hot-water reservoir 3 extending throughout the major part of the length of housing 1, e.g. from cover 2 as far as some distance from the underside of housing 1.
  • Reservoir 3 is formed essentially by two concentric metal cylinders 4,5, cylinder 4 of smaller diameter forming the inner wall of reservoir 3 and cylinder 5 of larger diameter forming the outer wall.
  • a space 6 serving as a discharge pipe for combustion gases.
  • a gas burner 7 fed through a gas pipe 8, which is suitably passed through the wall of housing 1 or which is connected to an external gas pipe through the lower end of housing 1.
  • Space 6 for combustion and subsequent discharge of combustion gases is connected to a pipe 9 passed through the cover 2 of housing 1, which pipe 9 may incorporate a damper 10.
  • Pipe 9 may continue downwardly to adjacent burner 7, in which case pipe 9 closely contacts the inner wall 4 of reservoir to ensure a good heat transfer to the water contained in reservoir 3.
  • a cold-water supply-pipe 11 which is passed through the wall of housing 1 in a suitable manner, while at the top of reservoir 3, a hot-water discharge-pipe 12 connects thereto, said pipe 12 being passed e.g. through cover 2.
  • annular space 13 Between the outer wall 5 of reservoir 3 and the inner wall of housing 1, there is provided an annular space 13 through which air to be heated in the housing can be passed.
  • the air to be heated is drawn in through suitable openings 14 in the wall of the housing 1 near its top end.
  • the intake of air and its movement through space 13 may be effected e.g. by means of a blower 15 disposed at the bottom of housing 1.
  • a dust filter 16 may be arranged at the bottom of housing 1 above blower 15.
  • Housing 1 is attached, in any suitable manner, to the floor 17 of a building to be heated.
  • the bottom of housing 1 is open and connects to a channel 18 provided in floor 17 for further transport and distribution of air heated in the apparatus.
  • the water in reservoir 3 is heated by means of gas burner 7.
  • the air sucked in through openings l4 and subsequently transported through the apparatus is heated by contact with wall 5 of reservoir 3. Because the air is not heated directly by burner 7, a uniform heat supply is possible.
  • the diameter of space 6, approximately equal to the inside diameter of reservoir 3 is 12.5 cm.
  • the diameter of the outer jacket 5 of reservoir 3 is 25 cm.
  • the diameter of housing 1 is 50 cm at the exterior and 35 cm internally.
  • the height of housing 1 as far as the top of cover 2 is 175 cm and the height of reservoir 3 is about 145 cm.
  • the openings 14 are such that with the given dimensions of space 13, fan 15 transports about 250 m3 of air per hour through the apparatus.
  • the apparatus is further provided with known per se means, not shown, for regulating the temperature of the water in reservoir 3 and for operating gas burner 7 and blower 15 in dependence on the desired functioning.
  • Fig. 2 shows a modified embodiment of the apparatus according to the present invention.
  • reservoir 3 has a larger diameter.
  • the outer wall 5 of reservoir 3 directly abuts on the inner wall of housing 1.
  • reservoir 3 does not extend as far as cover 2 is spaced some distance therefrom, so that the openings 14 lie above reservoir 3.
  • Discharge pipe 12 of reservoir 3, in this variant, is passed through the wall of housing 1.
  • annular space 13 through which the air to be heated is conducted, is located between the inner wall 4 of reservoir 3 and pipe 9 for combustion gases, which pipe 9 extends at any rate to around burner 7.
  • the annular space 13 contains a network 19 of metal wire or wire mesh connected to pipe 9 and to cylinder wall 4 of reservoir 3, thereby ensuring a good heat transfer from pipe 9 to reservoir 3.
  • housing 1 At a height of housing 1 with cover 2 of 175 cm, the outside diameter of housing 1 is about 52.5 cm.
  • the inside diameter of reservoir 3 is 27.5 cm and the diameter of pipe 9 is 12.5 cm.
  • the embodiment of the apparatus according to the present invention shown in Fig. 3 comprises a housing 1 with cover 2 wherein is arranged a cylindrical hot-water reservoir 20 having a supply pipe 11 and a discharge pipe 12.
  • the annular space 13, through which the air to be heated is conducted, is bounded by the inner wall of housing 1 and the outer wall of reservoir 20.
  • the heating of the water in reservoir 20 in this embodiment takes place for instance by means of electric resistance heating, for which purpose heating coils, not shown, may be arranged in or around reservoir 20.
  • Another possibility is the heating of the water by means of an external b oiler or water heater.
  • either externally heated water can be supplied through pipe 11, or a heat exchanger may be incorporated in reservoir 20, e.g. by passing externally heated water through reservoir 20 through a coil.
  • the height of reservoir 20 may be about 140 cm.
  • the annular, cylindrical reservoir 3 is dimensioned in such a manner that the outer wall 4 directly abuts on the inner wall of housing 1.
  • the reservoir extends up to and against the upper wall or cover 2 of housing 1.
  • Within the inner wall 4 of reservoir 3 extends a central channel 21, which is passed through the upper wall or cover 2 of housing 1. The air to be heated is conducted through said central channel 21.
  • Suitable dimensions of the apparatus shown in Fig. 4 may be: a height of housing 1 with cover 2 of about 175 cm,an outside diameter of housing 1 of 42.5 cm and an internal diameter of 27.5 cm, and an inside diameter of reservoir 3 of 17.5 cm.
  • the height of reservoir 3 may be about 140 cm.
  • All embodiments are shown to have a single hot-water reservoir.
  • a plurality of reservoirs in side-by-side relationship in a single housing, in which case said reservoirs will each be provided with suitable means for heating the water in in said reservoirs.

Landscapes

  • Engineering & Computer Science (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Heat-Pump Type And Storage Water Heaters (AREA)
  • Drying Of Solid Materials (AREA)
  • Electrostatic Separation (AREA)
  • Resistance Heating (AREA)
  • Details Of Fluid Heaters (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)
  • Air Humidification (AREA)
  • Cookers (AREA)
  • Instantaneous Water Boilers, Portable Hot-Water Supply Apparatuses, And Control Of Portable Hot-Water Supply Apparatuses (AREA)
  • Heating, Cooling, Or Curing Plastics Or The Like In General (AREA)
  • Control Of High-Frequency Heating Circuits (AREA)
EP86201715A 1985-04-04 1986-10-02 Lufterhitzer Expired - Lifetime EP0262263B1 (de)

Priority Applications (2)

Application Number Priority Date Filing Date Title
AT86201715T ATE85693T1 (de) 1985-04-04 1986-10-02 Lufterhitzer.
DE8686201715T DE3687754T2 (de) 1985-04-04 1986-10-02 Lufterhitzer.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL8501003A NL192632C (nl) 1985-04-04 1985-04-04 Inrichting voor het verwarmen van lucht.

Publications (2)

Publication Number Publication Date
EP0262263A1 true EP0262263A1 (de) 1988-04-06
EP0262263B1 EP0262263B1 (de) 1993-02-10

Family

ID=19845792

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86201715A Expired - Lifetime EP0262263B1 (de) 1985-04-04 1986-10-02 Lufterhitzer

Country Status (4)

Country Link
EP (1) EP0262263B1 (de)
AT (1) ATE85693T1 (de)
DE (1) DE3687754T2 (de)
NL (1) NL192632C (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0633434A1 (de) * 1993-07-05 1995-01-11 Alde International Systems Ab Kombiniertes Heizgerät
WO2023072425A1 (de) * 2021-10-29 2023-05-04 Truma Gerätetechnik GmbH & Co. KG Vorrichtung zum erwärmen von raumluft und einer flüssigkeit

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2550014A1 (de) * 1974-11-11 1976-05-20 Stamicarbon Verfahren, anlage und geraet zum beheizen von gebaeuden
FR2295366A1 (fr) * 1974-12-19 1976-07-16 Giovenale Francesco Chaudiere
EP0194975A2 (de) * 1985-03-12 1986-09-17 Gyger, Gilbert Strahlungsheizeinrichtung

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2550014A1 (de) * 1974-11-11 1976-05-20 Stamicarbon Verfahren, anlage und geraet zum beheizen von gebaeuden
FR2295366A1 (fr) * 1974-12-19 1976-07-16 Giovenale Francesco Chaudiere
EP0194975A2 (de) * 1985-03-12 1986-09-17 Gyger, Gilbert Strahlungsheizeinrichtung

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0633434A1 (de) * 1993-07-05 1995-01-11 Alde International Systems Ab Kombiniertes Heizgerät
US5579756A (en) * 1993-07-05 1996-12-03 Alde International Systems Ab Combination heater
WO2023072425A1 (de) * 2021-10-29 2023-05-04 Truma Gerätetechnik GmbH & Co. KG Vorrichtung zum erwärmen von raumluft und einer flüssigkeit

Also Published As

Publication number Publication date
DE3687754T2 (de) 1993-06-09
DE3687754D1 (de) 1993-03-25
ATE85693T1 (de) 1993-02-15
NL192632C (nl) 1997-11-04
NL8501003A (nl) 1986-11-03
NL192632B (nl) 1997-07-01
EP0262263B1 (de) 1993-02-10

Similar Documents

Publication Publication Date Title
US4923816A (en) Gassing incubator
US4690127A (en) Catalytic combustion deep fat fryer
US2860228A (en) Humidifier
US7575178B2 (en) Heat recovery apparatus
EP0374878B1 (de) Gasheizgerät zur Warmwasserbereitung und zur Raumheizung
US4735174A (en) Hot water heater with counterflow action
US2804870A (en) Air furnace humidifier system
US4275687A (en) Preheating unit for domestic hot water supply
US3269382A (en) Combination water and space heater
US4587401A (en) Electric water heating appliance
US4134545A (en) Apparatus for recirculating heated air
EP0262263A1 (de) Lufterhitzer
US4303042A (en) Water heater
US20040065311A1 (en) Baking oven construction
US2565769A (en) Electric heater
US2685434A (en) Air conditioning apparatus
US4384189A (en) Convection radiator
US2420875A (en) Heating apparatus
US6328220B1 (en) Humidifier
EP0309199A2 (de) Kochendwarmwassergerät
US4171770A (en) Poultry brooder system
US4147301A (en) Heating system
US2833267A (en) Combination water heater and space heater
US3303837A (en) Humidifier for heating systems
US2244126A (en) Humidifier

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE CH DE FR GB LI

17P Request for examination filed

Effective date: 19880831

17Q First examination report despatched

Effective date: 19891010

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH DE FR GB LI

REF Corresponds to:

Ref document number: 85693

Country of ref document: AT

Date of ref document: 19930215

Kind code of ref document: T

REF Corresponds to:

Ref document number: 3687754

Country of ref document: DE

Date of ref document: 19930325

ET Fr: translation filed
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 19970909

Year of fee payment: 12

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19970916

Year of fee payment: 12

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 19970925

Year of fee payment: 12

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: AT

Payment date: 19971010

Year of fee payment: 12

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 19971029

Year of fee payment: 12

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 19971114

Year of fee payment: 12

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19981002

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19981002

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19981031

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19981031

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19981031

BERE Be: lapsed

Owner name: VAN HEEL JOANNES MARIE

Effective date: 19981031

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 19981002

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19990630

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19990803