EP0870998A1 - Heizkessel mit Rücklaufwassereinspritzung unten im Heizkörper - Google Patents

Heizkessel mit Rücklaufwassereinspritzung unten im Heizkörper Download PDF

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Publication number
EP0870998A1
EP0870998A1 EP98440069A EP98440069A EP0870998A1 EP 0870998 A1 EP0870998 A1 EP 0870998A1 EP 98440069 A EP98440069 A EP 98440069A EP 98440069 A EP98440069 A EP 98440069A EP 0870998 A1 EP0870998 A1 EP 0870998A1
Authority
EP
European Patent Office
Prior art keywords
water
boiler
boiler according
exchanger
injection
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
EP98440069A
Other languages
English (en)
French (fr)
Other versions
EP0870998B1 (de
Inventor
Alfred Engel
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.)
De Dietrich Thermique SAS
Original Assignee
De Dietrich Thermique SAS
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 De Dietrich Thermique SAS filed Critical De Dietrich Thermique SAS
Publication of EP0870998A1 publication Critical patent/EP0870998A1/de
Application granted granted Critical
Publication of EP0870998B1 publication Critical patent/EP0870998B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • F24H9/00—Details
    • F24H9/0005—Details for water heaters
    • F24H9/0036—Dispositions against condensation of combustion products
    • 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
    • F24H9/12—Arrangements for connecting heaters to circulation pipes
    • F24H9/13—Arrangements for connecting heaters to circulation pipes for water heaters

Definitions

  • the present invention relates to a boiler with low water injection back into the heater.
  • the insulation of the dwellings allows to operate at a lower temperature while keeping an impression of comfort.
  • the object of the present invention is to limit these condensations while allowing a lowering sensitive return water temperatures and this in inducing inside and around each exchanger from the hearth a rotating homogenization current with water being reheated. So the water in contact with the walls of the hearth is at a temperature higher than that entering the boiler in from the return circuit.
  • the invention relates to a boiler whose heating body partially has upper hot water outlet constituting the departure for the heating circuit and its part lower water inlet at lower temperature for the return of water from the heating circuit characterized in that the lower part of the heater a hollow longitudinal injection tube developing over the entire length of the body from the return port of the body heats up to the opposite end of this heating body, said tube receiving the return water has on the one hand a closed rear end and a front end mounted on the return port and on the other hand a plurality of injection nozzles directed on the same side to generate a current turn intended to mix and homogenize the water of incoming return at low temperature with ambient water already reheated or in the process of reheating.
  • the invention proceeds from the general idea inventive which consists in creating a circulation of water asymmetrical in the boiler to bring back a part hot water from the top to the bottom that comes mix with the return water.
  • This general function is obtained by injecting the water back in one direction suitable for the base of each exchanger element.
  • the invention mainly applies but not exclusively for sectional boilers, i.e. to those comprising a heating body 1 formed heat exchanger elements such as 2, 3, 4, 5, 6 including a front heat exchanger element 2 and a rear facade exchanger element 6, for example in cast iron, joined together in juxtaposition longitudinal by means of hydraulic connections 7 using junction pieces called nipples such as 8.
  • the heating body conventionally presents, a hot water outlet 9 called outlet at the orifice top of the last exchanger element 6 and a water inlet cold 10 called return to the bottom port of the same last exchanger element 6.
  • Output 9 and input 10 are connected hydraulically to a water distribution circuit heated by a heat source burning a fuel in a fireplace 11.
  • the water returned to low installation temperature can cause formation in the rear exchanger element of a zone condensation at the water injection back and to the foyer level.
  • the present invention allows for a boiler formed by a plurality of exchanger elements, and more generally for a heating body any 12 (Figure 6), accept temperatures particularly low return water located by example between 40 ° C and 25 ° C, i.e. use water at direct return temperatures of the circuits heating by radiators, but also and above all direct return of the meanders of the heating ducts by the ground that operate at low temperatures because intended to establish a basic ambient temperature low.
  • a tube longitudinal hollow injector-distributor 13 which preferably extends over the entire length of the heating body 12.
  • This injector-distributor tube 13 is of sufficiently small cross-section than that of low orifices such as 14.15 of the exchanger elements to allow good water circulation on the part and other of these heat exchangers.
  • the tube injector-distributor 13 arises at the level of the bottom orifice of the last exchanger receiving on input 10 the connection of the return circuit.
  • the tube injector-distributor 13 is for example closed or with a restriction that is to say a passage to lower section at its other end 17 opposite to its entry into the heating body of the boiler.
  • This injector-distributor tube 13 comprises at right of each lower chamber 18 of each exchanger delimited by the lower orifices 14 and 15 at least one outlet 19 for example equipped an outlet nozzle.
  • the orifice (s) 19 are located on the same side of the exchanger element, by example the one on the right side in Figures 1 and 2. These nozzles are intended for injecting and diffusing water back to the very base of each of the elements exchangers.
  • nozzles are preferably oriented so as to direct the injection jet in the direction general of the uplink channel (s) such as 20 delimited by the walls immediately adjacent to ports 14 and 15.
  • the nozzle outlet sections are determined based on the power of the boiler, the number of heat exchangers and return and departure water temperatures.
  • the injector-distributor tube 13 forms a real injection ramp through which preferably all of the return water.
  • Unilateral injection generates movement turning of the water represented by the arrows on the Figures 2 and 4 and a homogenization effect allowing cold water to mix quickly with water room and warm up enough to avoid the aforementioned drawbacks.
  • this invention also applies to form boilers 12 different heaters, for example those in steel.
  • the heating body 12 is no longer formed by the juxtaposition of elements successive exchangers but by an interior volume free or divided by total intermediate walls or partial.
EP98440069A 1997-04-11 1998-04-07 Heizkessel mit Rücklaufwassereinspritzung unten im Heizkörper Expired - Lifetime EP0870998B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9704646A FR2762075B1 (fr) 1997-04-11 1997-04-11 Chaudiere a injection basse d'eau de retour dans le corps de chauffe
FR9704646 1997-04-11

Publications (2)

Publication Number Publication Date
EP0870998A1 true EP0870998A1 (de) 1998-10-14
EP0870998B1 EP0870998B1 (de) 2002-06-19

Family

ID=9505945

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98440069A Expired - Lifetime EP0870998B1 (de) 1997-04-11 1998-04-07 Heizkessel mit Rücklaufwassereinspritzung unten im Heizkörper

Country Status (4)

Country Link
EP (1) EP0870998B1 (de)
AT (1) ATE219570T1 (de)
DE (1) DE69806090T2 (de)
FR (1) FR2762075B1 (de)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0429371A1 (de) * 1989-11-24 1991-05-29 GEMINOX, Société Anonyme Heizkörper für Kessel für Wärmeträgerflüssigkeit
DE9404811U1 (de) * 1993-03-17 1994-07-14 Rapido Waermetechnik Gmbh Rücklaufanschluß
EP0693661A1 (de) * 1994-07-18 1996-01-24 Buderus Heiztechnik GmbH Gusseiserner Gliederheizkessel

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0429371A1 (de) * 1989-11-24 1991-05-29 GEMINOX, Société Anonyme Heizkörper für Kessel für Wärmeträgerflüssigkeit
DE9404811U1 (de) * 1993-03-17 1994-07-14 Rapido Waermetechnik Gmbh Rücklaufanschluß
EP0693661A1 (de) * 1994-07-18 1996-01-24 Buderus Heiztechnik GmbH Gusseiserner Gliederheizkessel

Also Published As

Publication number Publication date
EP0870998B1 (de) 2002-06-19
DE69806090D1 (de) 2002-07-25
FR2762075A1 (fr) 1998-10-16
ATE219570T1 (de) 2002-07-15
FR2762075B1 (fr) 1999-05-28
DE69806090T2 (de) 2003-01-02

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