EP0719989B1 - Chaudière murale mixte à gaz avec un mini-ballon accumulateur d'eau chaude sanitaire - Google Patents

Chaudière murale mixte à gaz avec un mini-ballon accumulateur d'eau chaude sanitaire Download PDF

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Publication number
EP0719989B1
EP0719989B1 EP95402958A EP95402958A EP0719989B1 EP 0719989 B1 EP0719989 B1 EP 0719989B1 EP 95402958 A EP95402958 A EP 95402958A EP 95402958 A EP95402958 A EP 95402958A EP 0719989 B1 EP0719989 B1 EP 0719989B1
Authority
EP
European Patent Office
Prior art keywords
mini
water
hot water
wall mounted
boiler
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.)
Expired - Lifetime
Application number
EP95402958A
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German (de)
English (en)
French (fr)
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EP0719989A1 (fr
Inventor
Mohamed Benabdelkarim
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
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Publication date
Application filed by Saunier Duval Eau Chaude Chauffage SDECC SA filed Critical Saunier Duval Eau Chaude Chauffage SDECC SA
Publication of EP0719989A1 publication Critical patent/EP0719989A1/fr
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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
    • F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
    • F24H1/48—Water heaters for central heating incorporating heaters for domestic water
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D3/00—Hot-water central heating systems
    • F24D3/08—Hot-water central heating systems in combination with systems for domestic hot-water supply

Definitions

  • the present invention relates to boilers mixed gas murals including hot water production sanitary is done via a mini-balloon low capacity accumulator known from EP-A-427121, representing the preamble of claim 1.
  • wall gas boilers are designated as mixed boilers if they can supply a heating circuit but also produce water domestic hot water.
  • the instantaneous domestic hot water production is guaranteed either by an exchanger with two separate circuits, one being a heating circuit and the other a sanitary circuit, - either by a single circuit exchanger associated with a small exchanger.
  • This is supplied with heating water by a circuit comprising a circulator and, on the departure side of the boiler, a three-way valve. This valve is hydrostatically controlled by a device depression when domestic water is drawn.
  • This production method is very economical for maximum possible service and it has the advantage of ability to supply quantity of domestic hot water unlimited.
  • the balloon exchanger In the case of a balloon with low capacity, for example 50 liters at a set point of 60 ° C, during a 4-minute drawing, the balloon exchanger would not have time to warm up the volume of cold water entering it replacement.
  • the Applicant therefore endeavored to find a solution that combines the advantages of both production and production by accumulation, in limiting the disadvantages of each, in particular as regards relates to the variations in temperature of water drawn, linked in transient phases.
  • the invention therefore relates to a wall-mounted boiler mixed gas comprising a heating body supplying a heating circuit fitted with radiators and comprising also a main sanitary exchanger heated by said heating element, to which cold water arrives and which distributes domestic hot water by a tap, a three-way valve directing the circuit water heating to a short sanitary circuit, during a drawing, boiler according to which a mini-balloon low capacity accumulator is interposed in the outlet pipe distributing hot water from the main domestic heat exchanger to the tap, boiler according to which, inside the mini-balloon accumulator is located a means of reheating to compensate for losses of the mini-balloon.
  • the additional heating means is a small exchanger mounted in the domestic hot water circuit.
  • the additional heating means is resistance electric.
  • the invention applies to two variants of combination boilers, two-circuit boilers and single circuit boilers.
  • conduit distributing the water hot from the main domestic heat exchanger split into two rods that enter the mini ball accumulator by its base and lead respectively to the lower part and to the upper part of the mini ball, the drawing pipe being provided at the top of the mini-balloon.
  • FIG. 1 illustrates a mixed boiler instant two-circuit, equipped with a mini-balloon accumulator.
  • the boiler has a heating body 1 heated by a burner 2 supplied with gas via of a gas solenoid valve not shown.
  • the body of heater supplies heating radiators 3 by one heating flow circuit 4 on which is inserted a three-way valve 5.
  • Line 6 returns to the body heating downstream of the radiators, the water circulating in the direction of the arrows thanks to a circulation pump 14.
  • the heating element 1 is also crossed by an exchanger main sanitary 7 supplied by an inlet duct cold water 8.
  • the exchanger 7 distributes hot water sanitary, via a departure duct 9, to a mini-balloon accumulator 10 with a capacity of less than 20 liters, depending on the power of the device.
  • domestic hot water is withdrawn from the mini-balloon by the drawing pipe 11 carrying a tap, a detector 17 for drawing in sanitary flow being planned upstream
  • a temperature sensor 15 is placed on the domestic water outlet pipe 9, at near the exchanger 7 and that another temperature 16 is placed in the mini-ball 10.
  • the boiler operates as follows:
  • the three-way valve 5 When the user opens the tap and the requested domestic hot water flow is greater than flow threshold, then the three-way valve 5 is switched from its previous position for which it supplied the radiators 3, to the other position for which the water in the circuit 4 goes through short circuit 12. Burner 2 is on and the domestic water contained in the mini-tank 10 is replaced with hot water by the domestic heat exchanger main 7 and conduit 9. During this phase, the boiler behaves exactly like a mixed boiler instant, without associated balloon. All hot water from of the exchanger 7, therefore passes through the mini-balloon 10, the water capacity allows to amortize, until canceled, temperature variations at the outlet of said exchanger main sanitary. It is from the data provided by the sensor 15 which is ensured the temperature regulation domestic hot water, the sensor 16 of the mini-cylinder being inhibited.
  • valve 5 switches circuit 4 to radiators 3, in winter, or the boiler stops in summer. Since mini-ball 10 has been supplied directly by hot water from the exchanger main sanitary 7, there is no need to continue reheating the water in the mini-balloon unlike a storage system.
  • the mini-balloon 10 When there is no hot water draw sanitary for a while the average temperature of the mini-balloon 10 measured by the sensor 16, becomes below a threshold. Burner 2 ignition minimum is then ordered as well as the switching of the circuit 4 to circuit 12 in winter, or the start of the pump in summer. Thanks to the small exchanger 13, the mini-balloon is therefore reheated and when the water has again reached its set temperature, sensor 16 controls the stopping of the burner and pump in summer or switching the boiler in heating mode in winter. The sensor 16 works like a balloon aquastat.
  • Another case is that of a low water draw flow or very short duration. If the flow is less than threshold flow, some of the water in the mini-balloon without necessarily igniting the burner. On the other hand if the water temperature of the mini-balloon drops below the threshold temperature, there is control of the burner as in the case of a draw-off greater flow. But if the drawing time is short, taking into account the water capacity of the mini-balloon, there will not take place to heat it up through the small exchanger 13.
  • the heating exchanger is replaced by a small electrical resistance 18 supplied by the network, regardless of the sanitary short circuit.
  • This resistance is sufficient to compensate for heat losses of the order of 20 W to 100 W and the sensor 16 of mini-ball 10, which behaves like a aquastat controls the supply of this resistance when the water temperature has dropped below a threshold fixed, and cutting when the water is heated above of another given threshold.
  • FIG. 3 Another embodiment is shown in the figure 3. It shows an installation of a mixed wall-mounted boiler instant single circuit with also a mini ball accumulation.
  • the same elements have the same references only to FIG. 1.
  • the heater 1 does not does not contain a main sanitary exchanger. It is this time arranged outside the heating body. It is present as a small exchanger 7 with cup or plate compact supplied by a cold water inlet pipe 8. It distributes domestic hot water to mini-tank 10 through the starting duct 9.
  • mini-ball boilers have undeniable economic advantages. Indeed a mini-balloon is more compact than a normal balloon and can therefore be integrated into the standard footprint of a boiler instant. In addition it costs less. Likewise her little exchanger 13 is less bulky and also cheaper than the one placed in the flask of 50 liters or more. Furthermore the mini storage boiler saves the pump sanitary recirculation.
  • Boiler operation is improved if preferably a mini accumulator balloon is used 10 of the type shown in FIG. 4. It is a lower capacity, for example of the order of four liters, elongated.
  • the starting duct 9 which distributes domestic hot water splits into two 9a rods and 9b which enter the mini-ball through its base.
  • the cane 9a opens at the bottom while the cane 9b develops over the entire height and leads to the game greater than a short distance from the drawing pipe 11 provided at the top of the mini-balloon.
  • a low zone A which is a mixing zone into which the rod arrives 9a
  • an intermediate stratification zone B and another mixing zone C at the top in which the rod 9b, near the duct 11.
  • the exchanger 13 for the additional heat input is located in the central part of the balloon.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Thermal Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Water Supply & Treatment (AREA)
  • Steam Or Hot-Water Central Heating Systems (AREA)
  • Heat-Pump Type And Storage Water Heaters (AREA)
  • Cookers (AREA)
  • Domestic Hot-Water Supply Systems And Details Of Heating Systems (AREA)
  • Instantaneous Water Boilers, Portable Hot-Water Supply Apparatuses, And Control Of Portable Hot-Water Supply Apparatuses (AREA)
EP95402958A 1994-12-29 1995-12-28 Chaudière murale mixte à gaz avec un mini-ballon accumulateur d'eau chaude sanitaire Expired - Lifetime EP0719989B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9415855A FR2728960A1 (fr) 1994-12-29 1994-12-29 Chaudiere murale mixte a gaz avec un mini-ballon accumulateur d'eau chaude sanitaire
FR9415855 1994-12-29

Publications (2)

Publication Number Publication Date
EP0719989A1 EP0719989A1 (fr) 1996-07-03
EP0719989B1 true EP0719989B1 (fr) 2000-08-02

Family

ID=9470402

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95402958A Expired - Lifetime EP0719989B1 (fr) 1994-12-29 1995-12-28 Chaudière murale mixte à gaz avec un mini-ballon accumulateur d'eau chaude sanitaire

Country Status (5)

Country Link
EP (1) EP0719989B1 (fi)
AT (1) ATE195175T1 (fi)
DE (1) DE69518216T2 (fi)
ES (1) ES2151038T3 (fi)
FR (1) FR2728960A1 (fi)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT400360B (de) * 1994-03-25 1995-12-27 Vaillant Gmbh Wasserheizer
DE19636360C2 (de) * 1996-09-06 2001-05-23 Bosch Gmbh Robert Verfahren zur Brauchwasserbereitstellung in einem kombinierten System
DE10016171C1 (de) 2000-03-31 2001-03-01 Bosch Gmbh Robert Heizungsanlage mit Gastherme, Wärmeübertrager, Heizwasser-Kreislauf und Trinkwasser-Speicher
FR2824627A1 (fr) 2001-05-09 2002-11-15 Sdecc Dispositif de production d'eau chaude sanitaire a partir d'un miniballon a maintien electrique et d'une chaudiere mixte a gaz
FR2837266B1 (fr) 2002-03-14 2004-06-18 Dominique Seguy Ballon d'eau chaude sanitaire muni d'une canne centrale, dispositif de production et de chauffage d'eau chaude sanitaire muni d'un tel ballon et procede associe
ITMI20030319A1 (it) * 2003-02-21 2004-08-22 Riello Spa Caldaia a gas.
ITTV20110157A1 (it) * 2011-11-10 2013-05-11 Ct Tecnico Snc Di Biz Luca E Se Rgio Caldaia
CN104807068B (zh) * 2014-01-24 2017-12-22 樱花卫厨（中国）股份有限公司 卫浴低温加热设备的智能控制方法
CN104676873A (zh) * 2015-01-20 2015-06-03 芜湖美的厨卫电器制造有限公司 燃电一体式热水器
ITUB20155430A1 (it) * 2015-11-10 2017-05-10 Radiant Bruciatori S P A Dispositivo a caldaia da riscaldamento per ambienti ed acqua sanitaria
ES1253539Y (es) * 2020-06-23 2021-01-04 Sanz San Cristobal Juan Carlos Dispositivo para agua caliente sanitaria
CN113719882A (zh) * 2021-09-03 2021-11-30 沈阳恒久安泰环保与节能科技有限公司 一种三端一体化多重反馈相变储能装置

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2551187B1 (fr) * 1983-08-26 1988-02-12 Laurent Francois Procede et installation pour la production d'eau chaude sanitaire a partir d'une installation generatrice de chaleur a bruleur
DE8915404U1 (de) * 1989-08-24 1990-12-20 Vießmann, Hans, Dr., 3559 Battenberg Wärmetauscher
AT394771B (de) * 1989-11-07 1992-06-25 Vaillant Gmbh Verfahren und einrichtung zur durchfuehrung des verfahrens zum sofortigen zapfen von warmem brauchwasser

Also Published As

Publication number Publication date
FR2728960B1 (fi) 1997-02-28
EP0719989A1 (fr) 1996-07-03
DE69518216D1 (de) 2000-09-07
DE69518216T2 (de) 2001-03-29
FR2728960A1 (fr) 1996-07-05
ES2151038T3 (es) 2000-12-16
ATE195175T1 (de) 2000-08-15

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