EP0128879A1 - Vorrichtung zur Wärmerückgewinnung an Gasherden - Google Patents

Vorrichtung zur Wärmerückgewinnung an Gasherden Download PDF

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Publication number
EP0128879A1
EP0128879A1 EP84830169A EP84830169A EP0128879A1 EP 0128879 A1 EP0128879 A1 EP 0128879A1 EP 84830169 A EP84830169 A EP 84830169A EP 84830169 A EP84830169 A EP 84830169A EP 0128879 A1 EP0128879 A1 EP 0128879A1
Authority
EP
European Patent Office
Prior art keywords
gas operated
tubular duct
duct
recovering device
heat recovering
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.)
Withdrawn
Application number
EP84830169A
Other languages
English (en)
French (fr)
Inventor
Ottorino Sparano
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
Publication of EP0128879A1 publication Critical patent/EP0128879A1/de
Withdrawn legal-status Critical Current

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Classifications

    • 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

  • the present invention relates to a device for recovering heat from gas operated ranges of the type used at home,restaurants,hotels and the like.
  • the total amount of heat (in the form of fumes,combustion products and radiating power) produced by a gas operated range during its operation consists of the following:
  • the task of the present invention is to provide such a device which is able of completely or at least substantially recovering those heat portions which were not used during the food cooking process,without subtracting from the cooking process itself the power required thereby which,as it is known,changes depending on the contingent needs.
  • a heat recovering device characterized in that it comprises at least a tubular duct encompassing at least a flame of a gas operated range,said tubular duct being supported by supporting means and being coupled,at the two ends thereof,to a duct for supplying the liquid to be heated and respectively to a duct for removing the heated liquid.
  • the above mentioned tubular duct encompasses all of the flames of the gas operated range.
  • the liquid passing through said tubular duct consists of water,and the mentioned tubular duct is coupled,from one side,to the home water supplyi network and,from the other side,to a home water heater device.
  • a gas operated range of the type having four flames 2,3,4 and 5 and on the top surface 6 whereof there is removably associated a grill member 7 (fig.2) for supporting casseroles,pans and the like vessels used for cooking food and generally indicated at 8.
  • a heat recovering device is supported on the top surface 6 of the gas operated range l,as it will be illustrated in a more detailed way thereinafter.
  • the heat recovering device 9 comprises essentially a tubular duct 10 which encompasses,in a continuous way,all of the flames of the gas operated range.In particular,at the mentioned flames,annular portions 11,12,13 and 14 are formed in the tubular duct 10,not completely closed on themselves, in order to leave an acces space to the flames,for example for electrical lighters,not shown.
  • the position of the mentioned tubular duct 10 with respect to the flames from 2 to 5 of the gas operated range 1 and the diameter of the annular portions from 11 to 14 of the tubular duct 10 are so selected that the heat recovering device 9 according to the present invention has,from one side,a satisfactory efficiency and,from the other hand,does not impair the thermal efficiency of the gas operated range thereto it is applied.
  • tubular duct 10 be located immediately under the grill 7, and that the mentioned annular portions,formed by said tubular duct 10,have an inner diameter substantially equal to the outer diameter of the flame of the corresponding flame element of the range,as it is in its "maximnm" position, in such a way as to be touched thereby.
  • the supporting means of the heat recovering device 9 may be of a different type,for example of the type schematically illustrated in figs.4 and 5.
  • fig.4 there is illustrated a bracket or crancked lever supporting member 16, which is particularly useful for large size gas operated ranges,and which is provided with a forkshaped horizontal wing,the legs 17,18 whereof are effective to be resiliently deformed and'clamped by a screw 19.
  • a supporting member 20 also of crancked configuration,which is particularly useful for small size gas operated ranges, such as the home ranges.
  • a resilient ring 22 At the end portion of the horizontal wing 21 of the supporting member 20 there is formed a resilient ring 22, which is effective to be clamped or "closed” by threaded means 23,to be arranged about the tubular duct 10.
  • Fig.6 schematically illustrates a further supporting member 24 for the tubular duct 10.
  • that supporting member 24 consists of a metal cylindrical portion which encompasses a respective flame of the range 1 and in the inside whereof there is welded or affixed in any other suitable ways a corresponding annular portion of the tubular duct itself.
  • the mentioned cylindrical portion is advantageously arranged above the grill 7 and is is to be provided with one or more openings 25 in order to facilitate the exiting of the fumes or combustion products.
  • Said tubular portion 24 forms by itself the means for supporting the pan or cooking vessel.
  • tubular duct 10 may also be welded or affixed in any other suitable ways outside of the tubular portion 24 in such a way as to form thereon two or more complete turns.
  • the end portions 10a,10b of said tubular duct 10 are respectively communicated with a duct,not shown,for supplying the liquid to be heated(for example water) and with a duct for delivering the heated liquid.
  • tubular duct 10 which is preferably made from steel,has a circular cross-section;however it may also have a quadrilateral or polygonal cross-section depending on the use needs and it may be smooth as in the illustrated case,or of finned configuration in order to increase the thermal exchange surface.
  • the heat recovering device may be coupled to a tank, not shown, which is thermally insulated as a conventional water heater.More specifically that tank will be coupled to the water supply network and the coupling may consist of a simple cock to be opened and closed by the user together with a floating member for holding the level constant.
  • the heat recovering device according to the present invention may be used as an integrating or economizing device in heating systems and/or electrical water heaters thereto it may be coupled in a very simple and economical way,according to conventional methods.
  • the main advantage is achieved of using a lot of the heat which would be otherwise dispersed for heating a liquid,for example and preferably water,with a consequent great saving of power.
  • the heat recovering device according to the invention provided "indirect" advantages, such as an improved thermal efficiency of the range since it improves the “conveying" of the fumes and combustion products along the walls of the pans;moreover it improves the efficiency of the sucking hood, owing to the improved conveying of the combustion fumes.
  • advantages such as an improved thermal efficiency of the range since it improves the "conveying" of the fumes and combustion products along the walls of the pans;moreover it improves the efficiency of the sucking hood, owing to the improved conveying of the combustion fumes.
  • a reduced amount of CO 2 released to the room of the gas operated range provided with a heat recovering device according to the present invention.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Cookers (AREA)
EP84830169A 1983-06-07 1984-06-05 Vorrichtung zur Wärmerückgewinnung an Gasherden Withdrawn EP0128879A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT8321509A IT1212749B (it) 1983-06-07 1983-06-07 Recuperatore di calore dalle cucine a gas.
IT2150983 1983-06-07

Publications (1)

Publication Number Publication Date
EP0128879A1 true EP0128879A1 (de) 1984-12-19

Family

ID=11182856

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84830169A Withdrawn EP0128879A1 (de) 1983-06-07 1984-06-05 Vorrichtung zur Wärmerückgewinnung an Gasherden

Country Status (2)

Country Link
EP (1) EP0128879A1 (de)
IT (1) IT1212749B (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT393020B (de) * 1987-11-03 1991-07-25 Vaillant Gmbh Brenner, insbesondere gasbrenner
DE19758023A1 (de) * 1997-12-29 1999-07-01 Volkswagen Ag Gasherd, insbesondere für ein Campingfahrzeug
WO2001039641A2 (en) * 1999-12-01 2001-06-07 Twan Poa Lau A cooking accessory
GB2442055A (en) * 2006-09-19 2008-03-26 Yin Lun Allen Wong Heat recovery from a Chinese wok cooker with a folded tube within a ring

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1404134A (en) * 1920-07-01 1922-01-17 Meister Daniel Joseph Water-heating apparatus
US1439490A (en) * 1921-03-07 1922-12-19 William A Siebert Water heater
US1481665A (en) * 1922-02-10 1924-01-22 William J Elliott Water heater for stoves
DE2647740A1 (de) * 1976-10-22 1978-04-27 Georg Graetzer Brauchwassererhitzer

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1404134A (en) * 1920-07-01 1922-01-17 Meister Daniel Joseph Water-heating apparatus
US1439490A (en) * 1921-03-07 1922-12-19 William A Siebert Water heater
US1481665A (en) * 1922-02-10 1924-01-22 William J Elliott Water heater for stoves
DE2647740A1 (de) * 1976-10-22 1978-04-27 Georg Graetzer Brauchwassererhitzer

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT393020B (de) * 1987-11-03 1991-07-25 Vaillant Gmbh Brenner, insbesondere gasbrenner
DE19758023A1 (de) * 1997-12-29 1999-07-01 Volkswagen Ag Gasherd, insbesondere für ein Campingfahrzeug
WO2001039641A2 (en) * 1999-12-01 2001-06-07 Twan Poa Lau A cooking accessory
SG87063A1 (en) * 1999-12-01 2002-03-19 Twan Poa Lau A cooking accessory
WO2001039641A3 (en) * 1999-12-01 2002-09-12 Twan Poa Lau A cooking accessory
GB2442055A (en) * 2006-09-19 2008-03-26 Yin Lun Allen Wong Heat recovery from a Chinese wok cooker with a folded tube within a ring

Also Published As

Publication number Publication date
IT1212749B (it) 1989-11-30
IT8321509A0 (it) 1983-06-07

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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

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

17P Request for examination filed

Effective date: 19850521

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

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 19860402