EP0676597B1 - Pipe assembly for conveying fumes in steel boilers provided with condensate quick evaporating means - Google Patents

Pipe assembly for conveying fumes in steel boilers provided with condensate quick evaporating means Download PDF

Info

Publication number: EP0676597B1
Authority: EP; European Patent Office
Prior art keywords: condensate; pipe; pipe assembly; evaporating means; outer pipe
Prior art date: 1994-04-06
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

EP95830078A

Other languages

German (de)

English (en)

French (fr)

Other versions

EP0676597A2 (en

EP0676597A3 (en

Inventor

Dante C/O Ferroli S.P.A. 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.)

1994-04-06

Filing date

1995-03-06

Publication date

1999-11-24

1995-03-06 Application filed by Ferroli SpA filed Critical Ferroli SpA

1995-10-11 Publication of EP0676597A2 publication Critical patent/EP0676597A2/en

1996-05-15 Publication of EP0676597A3 publication Critical patent/EP0676597A3/en

1999-11-24 Application granted granted Critical

1999-11-24 Publication of EP0676597B1 publication Critical patent/EP0676597B1/en

2015-03-06 Anticipated expiration legal-status Critical

Status Expired - Lifetime legal-status Critical Current

Links

239000003517 fume Substances 0.000 title claims abstract description 16
238000001704 evaporation Methods 0.000 title claims abstract description 10
229910000831 Steel Inorganic materials 0.000 title claims abstract description 9
239000010959 steel Substances 0.000 title claims abstract description 9
239000000463 material Substances 0.000 description 7
230000008020 evaporation Effects 0.000 description 3
230000015572 biosynthetic process Effects 0.000 description 1
238000002485 combustion reaction Methods 0.000 description 1
230000002860 competitive effect Effects 0.000 description 1
238000010438 heat treatment 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
- F28F13/00—Arrangements for modifying heat-transfer, e.g. increasing, decreasing
- 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
- F24H9/00—Details
- F24H9/0005—Details for water heaters
- F24H9/0036—Dispositions against condensation of combustion products

Definitions

the present invention relates to a pipe assembly for conveying fumes in steel boilers provided with condensate quick evaporating means.
the aim of the present invention is to solve the above mentioned problem, so as to reduce the condensate materials and facilitate an evaporation of said condensate materials, during the idle periods in the operation of the burner device associated with the boiler.
a main object of the present invention is to provide a fume conveying pipe assembly in which the surfaces contacting the fumes are cooled very slowly so as to facilitate the evaporation of possible condensate materials.
Another object of the present invention is to provide such a fume conveying pipe assembly which is very reliable and safe in operation and which can be easily made starting from easily available elements and materials and which, moreover, is very competitive from a mere economic standpoint.
a pipe assembly for conveying fumes in steel boilers provided with condensate quick evaporating means said pipe assembly comprises an inner pipe and an outer pipe, which define a closed gap therebetween, characterized in that the outer pipe (3) comprises between said inner pipe and outer pipe parallel contacting lines extending which are made by drawing said outer pipe (3).
the fume conveying pipe assembly specifically designed for steel boilers provided with condensate quick evaporating means, according to the present invention, which has been generally indicated at the reference number 1, comprises an inner pipe 2 and an outer pipe 3, coaxial with respect to one another, and so arranged as to define a closed gap 4 therebetween.
the inner pipe at the end portions thereof, is enlarged so as to perfectly abut against the outer pipe, thereby said gap 4 is perfectly closed and has substantially an even thickness.
the heat conduction between the inner pipe and outer pipe is obtained by contacting lines 10 extending with a helical pattern and which are obtained by a drawing on the outer pipe.
the used materials, as well as the contingent size and shapes can be any, depending on requirements and the scope of the claims.

Landscapes

Engineering & Computer Science (AREA)
Physics & Mathematics (AREA)
Thermal Sciences (AREA)
Mechanical Engineering (AREA)
General Engineering & Computer Science (AREA)
Combustion & Propulsion (AREA)
Chemical & Material Sciences (AREA)
Rigid Pipes And Flexible Pipes (AREA)
Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Incineration Of Waste (AREA)
Control Of Steam Boilers And Waste-Gas Boilers (AREA)
Metal Extraction Processes (AREA)
Loading And Unloading Of Fuel Tanks Or Ships (AREA)

EP95830078A 1994-04-06 1995-03-06 Pipe assembly for conveying fumes in steel boilers provided with condensate quick evaporating means Expired - Lifetime EP0676597B1 (en)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
ITMI940248U		1994-04-06
IT94MI000248U IT233222Y1 (it)	1994-04-06	1994-04-06	Struttura di tubi per il convogliamento dei fumi,per caldaie in acciaio,con evaporazione rapida dell'eventuale condensa

Publications (3)

Publication Number	Publication Date
EP0676597A2 EP0676597A2 (en)	1995-10-11
EP0676597A3 EP0676597A3 (en)	1996-05-15
EP0676597B1 true EP0676597B1 (en)	1999-11-24

Family

ID=11367839

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP95830078A Expired - Lifetime EP0676597B1 (en)	1994-04-06	1995-03-06	Pipe assembly for conveying fumes in steel boilers provided with condensate quick evaporating means

Country Status (7)

Country	Link
EP (1)	EP0676597B1 (da)
AT (1)	ATE186979T1 (da)
DE (1)	DE69513428T2 (da)
DK (1)	DK0676597T3 (da)
ES (1)	ES2141911T3 (da)
IT (1)	IT233222Y1 (da)
PT (1)	PT676597E (da)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
FR2458783B1 (fr) *	1979-06-11	1987-01-16	Westinghouse Electric Corp	Tubes de transfert de chaleur comportant des moyens pour limiter le flux calorifique
DE3410141C2 (de) *	1984-03-20	1986-12-11	Buderus Ag, 6330 Wetzlar	Heizungskessel mit rohrförmigen Heizgaskanälen
DE3822238A1 (de) *	1988-07-01	1990-01-04	Buderus Heiztechnik Gmbh	Heizungskessel mit einem rohrfoermigen heizgaszug

1994
- 1994-04-06 IT IT94MI000248U patent/IT233222Y1/it active IP Right Grant
1995
- 1995-03-06 PT PT95830078T patent/PT676597E/pt unknown
- 1995-03-06 EP EP95830078A patent/EP0676597B1/en not_active Expired - Lifetime
- 1995-03-06 AT AT95830078T patent/ATE186979T1/de active
- 1995-03-06 ES ES95830078T patent/ES2141911T3/es not_active Expired - Lifetime
- 1995-03-06 DE DE69513428T patent/DE69513428T2/de not_active Expired - Fee Related
- 1995-03-06 DK DK95830078T patent/DK0676597T3/da active

Also Published As

Publication number	Publication date
ITMI940248U1 (it)	1995-10-06
EP0676597A2 (en)	1995-10-11
PT676597E (pt)	2000-05-31
ATE186979T1 (de)	1999-12-15
DE69513428T2 (de)	2000-06-21
ES2141911T3 (es)	2000-04-01
DE69513428D1 (de)	1999-12-30
ITMI940248V0 (it)	1994-04-06
EP0676597A3 (en)	1996-05-15
IT233222Y1 (it)	2000-01-26
DK0676597T3 (da)	2000-05-29

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