EP0068967A1 - Vorrichtung zum Abschotten mit einsetzbaren Trennwänden für Wärmetauscher mit ringförmig angeordneten Wasserrohren - Google Patents

Vorrichtung zum Abschotten mit einsetzbaren Trennwänden für Wärmetauscher mit ringförmig angeordneten Wasserrohren Download PDF

Info

Publication number: EP0068967A1
Authority: EP; European Patent Office
Prior art keywords: baffles; removable; tubes; vertical leg; cover
Prior art date: 1981-06-17
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

EP82401082A

Other languages

English (en)

French (fr)

Other versions

EP0068967B1 (de

Inventor

Bernard Pauchet

Jack Raynaud

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.)

Saunier Duval Eau Chaude Chauffage SDECC SA

Original Assignee

Saunier Duval Eau Chaude Chauffage SDECC SA

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.)

1981-06-17

Filing date

1982-06-15

Publication date

1983-01-05

1982-06-15 Application filed by Saunier Duval Eau Chaude Chauffage SDECC SA filed Critical Saunier Duval Eau Chaude Chauffage SDECC SA

1983-01-05 Publication of EP0068967A1 publication Critical patent/EP0068967A1/de

1985-01-09 Application granted granted Critical

1985-01-09 Publication of EP0068967B1 publication Critical patent/EP0068967B1/de

Status Expired legal-status Critical Current

Links

XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 22
238000000638 solvent extraction Methods 0.000 title claims abstract 4
239000000463 material Substances 0.000 claims abstract description 4
238000002485 combustion reaction Methods 0.000 description 3
238000007789 sealing Methods 0.000 description 3
208000031968 Cadaver Diseases 0.000 description 2
230000004888 barrier function Effects 0.000 description 2
238000010438 heat treatment Methods 0.000 description 2
238000004519 manufacturing process Methods 0.000 description 2
230000001174 ascending effect Effects 0.000 description 1
239000000567 combustion gas Substances 0.000 description 1
238000009833 condensation Methods 0.000 description 1
230000005494 condensation Effects 0.000 description 1
239000007789 gas Substances 0.000 description 1
238000003754 machining Methods 0.000 description 1
230000014759 maintenance of location Effects 0.000 description 1
238000005192 partition Methods 0.000 description 1
230000001737 promoting effect Effects 0.000 description 1
238000011084 recovery Methods 0.000 description 1
238000003466 welding Methods 0.000 description 1

Images

Classifications

- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/22—Arrangements for directing heat-exchange media into successive compartments, e.g. arrangements of guide plates
- 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
- F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
- F24H1/22—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating
- F24H1/40—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating with water tube or tubes
- F24H1/403—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating with water tube or tubes the water tubes being arranged in one or more circles around the burner

Definitions

the invention relates to removable baffles shielding the circulation of water in the exchangers with a layer of water tubes, in particular for condensing boilers.
Boiler exchangers of this type are usually made in the form of a cylindrical sheet of water tubes arranged around a central burner and wrapped in a sealed shell intended to collect the combustion products which are evacuated through a chimney .
This arrangement allows partial or total recovery of the latent heat of condensation of the water vapor contained in the combustion gases thanks to the large exchange surfaces provided between the water tubes and these gases.
the water circulates in the tubes of the tablecloth by going up in a bundle of tubes starting from an upper distributor ring then by descending in another bundle of tubes towards the lower distributor and so on, thanks to a set of localized baffles in the rings.
baffles must obviously ensure a correct seal between the various sectors which they delimit, which is not without causing problems in terms of manufacturing.
the use of welds to fix these baffles on the distributor rings imposes costly machining operations and it is also necessary that sealing is ensured on the covers which cover these rings, for example using female parts or seals attached to the desired locations on these covers.
leaks that could be detected during use at the baffles cannot be easily repaired without taking them back to the workshop.
the applicant has developed a removable baffle of particular shape which fits directly into a water tube, without requiring welding, and which is itself capped. a seal for sealing against the cover.
the removable baffle according to the invention is generally in the form of a T, the vertical leg of which is introduced into the orifice of a water tube and the horizontal bar of which forms the screen which provides the seal. with the walls of the distributor ring and with the cover, thanks to a cap made of flexible material with which it is provided.
the exchanger shown in Figure 1 consists of a cylindrical layer of water tubes 5 arranged around a central burner 6 and wrapped in a sealed shell not shown intended to collect the combustion products which are evacuated by a chimney.
the upper part of the combustion chamber thus delimited is closed by a central disc 2 forming a plug.
the tubes 5 open into an upper distributor ring 3, a sort of circular "channel", the upper part of which is obstructed by the cover 4 shown in FIG. 2.
the water must circulate in the tubes of the sheet from a ring lower distributor not shown similar to distributor 3, first ascending in a few neighboring tubes to reach the upper distributor ring, then descending in a few other neighboring tubes and so on. To encourage the water to do these "round trips" between the two rings, it is necessary to partition the distributing rings to delimit watertight sections forming a barrier to the passage of water from a sector to the neighboring sector.
the removable baffles designated as a whole by the reference 1 perform this function and are held in position by fitting directly into a water tube. They have the shape shown in Figures 3 and 4 and are presented as a T whose vertical leg 10 is intended to be introduced into one of the tubes 5 which serves as a support.
the horizontal bar 11 of the T is profiled to correspond to the edges of the distributor ring, and topped with a seal 12 of rubber or similar material cut to fit the edges of the circular "channel" forming the distributor ring.
a lateral border of the joint shows the shape of a point 13 intended to match the border of the central disc 2.
a recess 14 is provided in the middle of the vertical leg 10, thus making it possible to engage the lower part.
the baffle 1 forms a barrier to the passage of water between the two immediately adjacent tubes which it isolates from one another. But for this the lower part of the vertical leg 10 must be in abutment against the internal wall of the tube 5. It is for this purpose that the two flanges 15 of the lower part of this vertical leg 10 are provided, flanges whose thickness>. corresponds to that of the tubes 5. These flanges are adjusted so that the baffle 1 inserted in its support is correctly maintained there without risk of vibration.
the cover 4 When the cover 4 is applied to the top of the distributor ring, the grooves 8 with which it is provided bear against the upper part of the seal 12, promoting sealing and further improving the retention of the baffles.
the figures represent four baffles delimiting four sectors in the distributor ring 3, but it is obvious that more baffles or fewer baffles could be used without departing from the scope of the invention which also encompasses all other variant embodiments not shown.

Landscapes

Engineering & Computer Science (AREA)
Physics & Mathematics (AREA)
Thermal Sciences (AREA)
Mechanical Engineering (AREA)
General Engineering & Computer Science (AREA)
Chemical & Material Sciences (AREA)
Combustion & Propulsion (AREA)
Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Details Of Fluid Heaters (AREA)

EP82401082A 1981-06-17 1982-06-15 Vorrichtung zum Abschotten mit einsetzbaren Trennwänden für Wärmetauscher mit ringförmig angeordneten Wasserrohren Expired EP0068967B1 (de)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
FR8111900		1981-06-17
FR8111900A FR2508157A1 (fr)	1981-06-17	1981-06-17	Dispositif de cloisonnement a chicanes amovibles pour echangeurs a nappe de tubes d'eau

Publications (2)

Publication Number	Publication Date
EP0068967A1 true EP0068967A1 (de)	1983-01-05
EP0068967B1 EP0068967B1 (de)	1985-01-09

Family

ID=9259613

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP82401082A Expired EP0068967B1 (de)	1981-06-17	1982-06-15	Vorrichtung zum Abschotten mit einsetzbaren Trennwänden für Wärmetauscher mit ringförmig angeordneten Wasserrohren

Country Status (3)

Country	Link
EP (1)	EP0068967B1 (de)
DE (1)	DE3261838D1 (de)
FR (1)	FR2508157A1 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
FR2694388B1 (fr) *	1992-07-30	1994-10-14	Sdecc	Echangeur de chaleur à nappe de tubes d'eau notamment pour chaudière à condensation.

Citations (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
GB623561A (en) *	1945-07-06	1949-05-19	Clifford Mfg Co	Improvements in or relating to a cooler
FR2096022A5 (de) *	1970-06-08	1972-02-11	Miller Avy
FR2261493A1 (de) *	1974-02-18	1975-09-12	Autobrzdy Jablonec Np
FR2463368A1 (fr) *	1979-08-09	1981-02-20	Saunier Duval	Corps de chauffe pour chaudieres domestiques de chauffage central a eau chaude par le gaz

1981
- 1981-06-17 FR FR8111900A patent/FR2508157A1/fr active Granted
1982
- 1982-06-15 EP EP82401082A patent/EP0068967B1/de not_active Expired
- 1982-06-15 DE DE8282401082T patent/DE3261838D1/de not_active Expired

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
GB623561A (en) *	1945-07-06	1949-05-19	Clifford Mfg Co	Improvements in or relating to a cooler
FR2096022A5 (de) *	1970-06-08	1972-02-11	Miller Avy
FR2261493A1 (de) *	1974-02-18	1975-09-12	Autobrzdy Jablonec Np
FR2463368A1 (fr) *	1979-08-09	1981-02-20	Saunier Duval	Corps de chauffe pour chaudieres domestiques de chauffage central a eau chaude par le gaz

Also Published As

Publication number	Publication date
DE3261838D1 (en)	1985-02-21
EP0068967B1 (de)	1985-01-09
FR2508157A1 (fr)	1982-12-24
FR2508157B1 (de)	1983-12-09

Legal Events

Date	Code	Title	Description
1982-11-05	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
1983-01-05	AK	Designated contracting states	Designated state(s): BE CH DE GB IT LI
1983-09-07	17P	Request for examination filed	Effective date: 19830617
1984-10-02	ITF	It: translation for a ep patent filed
1984-11-10	GRAA	(expected) grant	Free format text: ORIGINAL CODE: 0009210
1985-01-09	AK	Designated contracting states	Designated state(s): BE CH DE GB IT LI
1985-02-21	REF	Corresponds to:	Ref document number: 3261838 Country of ref document: DE Date of ref document: 19850221
1985-11-25	PLBE	No opposition filed within time limit	Free format text: ORIGINAL CODE: 0009261
1985-11-25	STAA	Information on the status of an ep patent application or granted ep patent	Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT
1986-01-29	26N	No opposition filed
1991-06-30	ITTA	It: last paid annual fee
1994-06-07	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: GB Payment date: 19940607 Year of fee payment: 13 Ref country code: CH Payment date: 19940607 Year of fee payment: 13 Ref country code: BE Payment date: 19940607 Year of fee payment: 13
1994-07-09	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: DE Payment date: 19940709 Year of fee payment: 13
1995-06-15	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: GB Effective date: 19950615
1995-06-30	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: LI Effective date: 19950630 Ref country code: CH Effective date: 19950630 Ref country code: BE Effective date: 19950630
1995-12-31	BERE	Be: lapsed	Owner name: SAUNIER DUVAL EAU CHAUDE CHAUFFAGE SDECC - S.A. Effective date: 19950630
1996-02-14	GBPC	Gb: european patent ceased through non-payment of renewal fee	Effective date: 19950615
1996-02-29	REG	Reference to a national code	Ref country code: CH Ref legal event code: PL
1996-03-01	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: DE Effective date: 19960301

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