EP0823361A2 - Brennwertkessel - Google Patents

Brennwertkessel

Info

Publication number: EP0823361A2
Authority: EP; European Patent Office
Prior art keywords: boiler; heat exchanger; heat; carrying fluid; combustion chamber
Prior art date: 1996-08-02
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

EP97830392.3A

Other languages

English (en)

French (fr)

Other versions

EP0823361A1 (de

EP0823361B1 (de

EP0823361A3 (de

Inventor

Dante Ferroli

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.)

Ferroli SpA

Original Assignee

Ferroli SpA

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.)

1996-08-02

Filing date

1997-07-25

Publication date

1998-02-11

1996-08-02 Priority claimed from IT96MI001697A external-priority patent/IT1283679B1/it

1997-07-25 Application filed by Ferroli SpA filed Critical Ferroli SpA

1998-02-11 Publication of EP0823361A2 publication Critical patent/EP0823361A2/de

1998-02-11 Publication of EP0823361A1 publication Critical patent/EP0823361A1/de

1998-11-04 Publication of EP0823361A3 publication Critical patent/EP0823361A3/de

2000-06-14 Application granted granted Critical

2000-06-14 Publication of EP0823361B1 publication Critical patent/EP0823361B1/de

2017-07-25 Anticipated expiration legal-status Critical

Status Expired - Lifetime legal-status Critical Current

Definitions

the present invention relates to a boiler including a high efficiency heat exchanger.
conventional boilers used in centralized heating systems for buildings in general usually comprise a combustion chamber or combustor and a heat exchanger, one side of which is in contact with the combustion products, and the other side of which is in contact with a carrying fluid, usually comprising water, and which is successively conveyed to heat radiating units provided in the rooms of the building to be heated.
One of the main problems related to a proper designing of heating system boilers is that of providing a thermal exchange efficiency between the combustion fumes and the heat carrying fluid.
the aim of the present invention is to overcome the above mentioned drawbacks, by providing such a heating system boiler which comprises a high thermal exchange efficiency heat exchanger, which can be made at a very reduced cost.
a main object of the present invention is to provide such a heat exchanger boiler which can be made by a simple melting operation in a conventional mold or in sand, while preserving those constructional features which are indispensable for providing a high thermal exchange efficiency.
Another object of the present invention is to provide such a heat exchanger boiler which can be assembled, at least with respect to the heat exchanger assembly thereof, in a very short time.
a high efficiency heat exchanger boiler characterized in that said boiler comprises a vertically extending hollow prismatic heat exchanger including an inner shell laterally delimiting a combustion chamber and an outer shell arranged in a heat carrying fluid circulating chamber, between said outer shell and inner shell a finned gap being provided, said finned gap communicating, at a top end portion thereof, with said combustion chamber and, at a bottom end portion thereof, with a fume collecting and removing duct.
the heating system boiler which has been generally indicated by the reference number 1, comprises an outer casing 2 or shell and a heat exchanger 3.
the heat exchanger 3 has a prismatic configuration, preferably having a square base, and being of hollow construction.
Said heat exchanger 3 is vertically arranged inside said casing 2 and is provided with an inner shell 4 which laterally delimits a combustion chamber or combustor 5, in which a burner 6, of any suitable known types, is arranged.
the outer shell 7 of the heat exchanger 3 defines, together with the inner surface of the casing 2, a chamber 8 in which a heat carrying fluid is circulated, said fluid preferably comprising water.
a gap 9 is defined, occupied by a plurality of fins 10 of said heat exchanger.
combustion chamber or combustor 5 is preferably formed in the top half of said heat exchanger 3 and is delimited, at the bottom thereof, by a sector 11, arranged in a middle region of the inner hollow of said heat exchanger 3.
the outer shell of the heat exchanger 3 is in turn provided with a plurality of fins 12, which have been specifically designed to increase the thermal exchange surface between the heat exchanger 3 and the heat carrying fluid, caused to circulate inside said chamber 8.
the finned gap 9 communicates with the combustion chamber 5 at the top end portion thereof.
the combustion chamber 5 is closed, at the top thereof, by a top portion 13 which is spaced by the top end portion of the gap 9 so that the fumes or combustion gases produced by the combustion inside said chamber 5, will be introduced into said gap 9 and will descend, along said gap, so as to contact the mentioned fins 10.
the bottom end portion of said finned gap 9 communicates, as shown, with a fume or combustion gas collecting and removing duct 14.
the chamber 8 communicates, near its bottom end portion, with a supplying duct 15, provided for introducing said heat carrying fluid into said chamber 8 and, near the bottom end portion thereof, with an outlet duct 16, for removing from said chamber 8 said fluid.
a counter-current heat transmission occurs, i.e. from the combustion gases or fumes descending along said gap 7 and the heat carrying fluid driven upwardly along said chamber 8.
the heat exchanger 3 will provide a high efficiency heat transmission from said fumes to said fluid, and, moreover, said heat exchanger can be made at a very reduced cost.
said heat exchanger 3 is preferably made as a single piece by melting it into a conventional mold or in a sand mold arrangement.
the specifically designed hexagonal base prismatic configuration of said heat exchanger will allow to make it without omitting, as it would occur with a circular configuration, any portions of the fins, in order to provide an easy removal from the mold.
said heat exchanger 3 can be made, depending on requirements, either by a melting method or by a die casting method, starting from a cast iron or an aluminium material.
said heat exchanger defines said combustion chamber 4.
the mentioned prismatic configuration will allow to produce the heat exchanger by casting its metal material into a single core and, accordingly, greatly reducing its making cost, with respect to prior art heat exchangers.
the combustion chamber 4 owing to its construction, provides the advantage that the walls of the combustion chamber may be easily cooled down through the fins 9.
the prismatic configuration of the combustion chamber, as well as the easy and quick cooling thereof, will allow to use a radial burner of low cost and less polluting than conventional burners.
the top portion of the body contacting said combustion chamber will provide a primary thermal exchange function, like a conventional boiler.
the used materials provided that they are compatible to the intended application, as well as the contingent size and shapes, can be any, depending on requirements.

EP97830392A 1996-08-02 1997-07-25 Brennwertkessel Expired - Lifetime EP0823361B1 (de)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
ITMI961697		1996-08-02
IT96MI001697A IT1283679B1 (it)	1996-08-02	1996-08-02	Caldaia con scambiatore di calore ad elevato rendimento

Publications (4)

Publication Number	Publication Date
EP0823361A2 true EP0823361A2 (de)	1998-02-11
EP0823361A1 EP0823361A1 (de)	1998-02-11
EP0823361A3 EP0823361A3 (de)	1998-11-04
EP0823361B1 EP0823361B1 (de)	2000-06-14

Family

ID=11374767

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP97830392A Expired - Lifetime EP0823361B1 (de)	1996-08-02	1997-07-25	Brennwertkessel

Country Status (6)

Country	Link
EP (1)	EP0823361B1 (de)
AT (1)	ATE193869T1 (de)
DE (1)	DE69702287T2 (de)
ES (1)	ES2148922T3 (de)
IT (1)	IT1283679B1 (de)
PT (1)	PT823361E (de)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE2712277A1 (de) *	1977-03-21	1978-09-28	Froeling Kessel App	Heizkessel fuer fluessige oder gasfoermige brennstoffe
DE8610699U1 (de) *	1986-04-18	1986-05-28	Buderus Ag, 6330 Wetzlar	Zentralheizungskessel für strömende Brennstoffe
DE3640503C1 (de) *	1986-11-27	1988-03-24	Babcock Werke Ag	Heizungskessel fuer eine Niedertemperaturheizung
NL8800649A (nl) *	1988-03-16	1989-10-16	Remeha Fabrieken Bv	Gasgestookt verwarmingstoestel en werkwijze voor het vervaardigen daarvan.

1996
- 1996-08-02 IT IT96MI001697A patent/IT1283679B1/it active IP Right Grant
1997
- 1997-07-25 DE DE69702287T patent/DE69702287T2/de not_active Expired - Fee Related
- 1997-07-25 ES ES97830392T patent/ES2148922T3/es not_active Expired - Lifetime
- 1997-07-25 AT AT97830392T patent/ATE193869T1/de not_active IP Right Cessation
- 1997-07-25 PT PT97830392T patent/PT823361E/pt unknown
- 1997-07-25 EP EP97830392A patent/EP0823361B1/de not_active Expired - Lifetime

Publication	Publication Date	Title
US6000908A (en)	1999-12-14	Cooling for double-wall structures
GB2317005A (en)	1998-03-11	Combustion chamber
EP0085470B1 (de)	1986-05-28	Kessel mit Rauchgaskondensation
EP0823361B1 (de)	2000-06-14	Brennwertkessel
GB1571789A (en)	1980-07-16	Furnace cooling element
EP0889292B1 (de)	2001-12-19	Wärmetauscher und Zentralheizungskessel mit so einem Wärmetauscher
EP0823361A2 (de)	1998-02-11	Brennwertkessel
GB2059567A (en)	1981-04-23	Direct heat exchanger between two gases
EP0043574A1 (de)	1982-01-13	Kühlplatte
CN210560536U (zh)	2020-05-19	一种铸锻式风口中套
RU2101622C1 (ru)	1998-01-10	Отопительный котел
US4245572A (en)	1981-01-20	Furnace cooling system
GB2036940A (en)	1980-07-02	High efficiency furnace burner device
US4487400A (en)	1984-12-11	Cooling plate
CN216558444U (zh)	2022-05-17	冷却保护装置及具有其的冶金炉
CN220931755U (zh)	2024-05-10	一种铜水出口的降温结构
SU1035069A1 (ru)	1983-08-15	Холодильник дл металлургических печей
RU2215791C1 (ru)	2003-11-10	Холодильник доменной печи
SU1036745A1 (ru)	1983-08-23	Дутьева фурма доменной печи
SU1425417A1 (ru)	1988-09-23	Устройство дл тепловой обработки материалов
JPS622453Y2 (de)	1987-01-21
JPS6319793B2 (de)	1988-04-25
CA1125502A (en)	1982-06-15	Furnace cooling system
JP2006250482A (ja)	2006-09-21	ガスクーラ
JPS6350621B2 (de)	1988-10-11

Legal Events

Date	Code	Title	Description
1998-02-11	AK	Designated contracting states:	Kind code of ref document: A1 Designated state(s): AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
1998-02-11	AX	Extension of the european patent to	Free format text: AL;LT;LV;RO;SI
1998-07-01	D17D	Search report (deleted)
1998-07-01	RA1	Date and kind of first publication (correction)	Date of ref document: 19980211 Kind code of ref document: A2
1998-07-08	K1C1	Correction of patent application (title page) published	Effective date: 19980211
1998-11-04	AK	Designated contracting states:	Kind code of ref document: A3 Designated state(s): AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
1998-11-04	AX	Extension of the european patent to	Free format text: AL;LT;LV;RO;SI
1999-02-03	17P	Request for examination filed	Effective date: 19981207
1999-07-14	AKX	Payment of designation fees	Free format text: AT BE CH DE ES FR GB IE LI NL PT SE
1999-08-18	17Q	First examination report	Effective date: 19990706
2000-06-14	AK	Designated contracting states:	Kind code of ref document: B1 Designated state(s): AT BE CH DE ES FR GB IE LI NL PT SE
2000-06-14	REF	Corresponds to:	Ref document number: 193869 Country of ref document: AT Date of ref document: 20000615 Kind code of ref document: T Format of ref document f/p: P
2000-06-15	REG	Reference to a national code	Ref country code: CH Ref legal event code: EP
2000-06-30	REG	Reference to a national code	Ref country code: CH Ref legal event code: NV Representative=s name: CABINET ROLAND NITHARDT CONSEILS EN PROPRIETE INDU
2000-07-20	REF	Corresponds to:	Ref document number: 69702287 Country of ref document: DE Date of ref document: 20000720 Format of ref document f/p: P
2000-08-09	REG	Reference to a national code	Ref country code: IE Ref legal event code: FG4D
2000-09-01	ET	Fr: translation filed
2000-09-29	REG	Reference to a national code	Ref country code: PT Ref legal event code: SC4A Free format text: AVAILABILITY OF NATIONAL TRANSLATION Effective date: 20000615
2000-10-16	REG	Reference to a national code	Ref country code: ES Ref legal event code: FG2A Ref document number: 2148922 Country of ref document: ES Kind code of ref document: T3 Format of ref document f/p: P
2001-05-30	26N	No opposition filed
2002-01-01	REG	Reference to a national code	Ref country code: GB Ref legal event code: IF02
2003-02-28	REG	Reference to a national code	Ref country code: CH Ref legal event code: NV Representative=s name: BOVARD AG PATENTANWAELTE
2003-07-02	PGFP	Postgrant: annual fees paid to national office	Ref country code: PT Payment date: 20030702 Year of fee payment: 07
2003-07-07	PGFP	Postgrant: annual fees paid to national office	Ref country code: BE Payment date: 20030707 Year of fee payment: 07
2003-07-09	PGFP	Postgrant: annual fees paid to national office	Ref country code: CH Payment date: 20030709 Year of fee payment: 07 Ref country code: IE Payment date: 20030709 Year of fee payment: 07
2003-07-14	PGFP	Postgrant: annual fees paid to national office	Ref country code: AT Payment date: 20030714 Year of fee payment: 07 Ref country code: SE Payment date: 20030714 Year of fee payment: 07
2003-07-17	PGFP	Postgrant: annual fees paid to national office	Ref country code: ES Payment date: 20030717 Year of fee payment: 07
2003-07-23	PGFP	Postgrant: annual fees paid to national office	Ref country code: DE Payment date: 20030723 Year of fee payment: 07 Ref country code: GB Payment date: 20030723 Year of fee payment: 07
2003-07-24	PGFP	Postgrant: annual fees paid to national office	Ref country code: FR Payment date: 20030724 Year of fee payment: 07
2003-07-30	PGFP	Postgrant: annual fees paid to national office	Ref country code: NL Payment date: 20030730 Year of fee payment: 07
2004-07-25	PG25	Lapsed in a contracting state announced via postgrant inform. from nat. office to epo	Ref country code: AT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20040725 Ref country code: GB Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20040725
2004-07-26	PG25	Lapsed in a contracting state announced via postgrant inform. from nat. office to epo	Ref country code: ES Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20040726 Ref country code: IE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20040726 Ref country code: SE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20040726
2004-07-31	PG25	Lapsed in a contracting state announced via postgrant inform. from nat. office to epo	Ref country code: BE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20040731 Ref country code: CH Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20040731 Ref country code: LI Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20040731
2005-01-25	PG25	Lapsed in a contracting state announced via postgrant inform. from nat. office to epo	Ref country code: PT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20050125
2005-01-31	BERE	Be: lapsed	Owner name: FERROLI S.P.A. Effective date*: 20040731
2005-02-01	PG25	Lapsed in a contracting state announced via postgrant inform. from nat. office to epo	Ref country code: DE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20050201 Ref country code: NL Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20050201
2005-03-01	EUG	Se: european patent has lapsed
2005-03-15	REG	Reference to a national code	Ref country code: CH Ref legal event code: PL
2005-03-16	GBPC	Gb: european patent ceased through non-payment of renewal fee	Effective date: 20040725
2005-03-31	PG25	Lapsed in a contracting state announced via postgrant inform. from nat. office to epo	Ref country code: FR Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20050331
2005-03-31	REG	Reference to a national code	Ref country code: PT Ref legal event code: MM4A Free format text: LAPSE DUE TO NON-PAYMENT OF FEES Effective date: 20050125
2005-04-01	NLV4	Nl: lapsed or anulled due to non-payment of the annual fee	Effective date: 20050201
2005-04-29	REG	Reference to a national code	Ref country code: FR Ref legal event code: ST
2005-05-04	REG	Reference to a national code	Ref country code: IE Ref legal event code: MM4A
2005-10-16	REG	Reference to a national code	Ref country code: ES Ref legal event code: FD2A Effective date: 20040726
2007-12-31	BERE	Be: lapsed	Owner name: FERROLI S.P.A. Effective date*: 20040731