FR2722560A1 - Domestic gas boiler for central heating and water heating - Google Patents
Domestic gas boiler for central heating and water heating Download PDFInfo
- Publication number
- FR2722560A1 FR2722560A1 FR9409124A FR9409124A FR2722560A1 FR 2722560 A1 FR2722560 A1 FR 2722560A1 FR 9409124 A FR9409124 A FR 9409124A FR 9409124 A FR9409124 A FR 9409124A FR 2722560 A1 FR2722560 A1 FR 2722560A1
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- FR
- France
- Prior art keywords
- exchanger
- water
- circuit
- domestic
- heating
- 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
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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
- F24H1/52—Water heaters for central heating incorporating heaters for domestic water incorporating heat exchangers for domestic water
- F24H1/526—Pipes in pipe heat exchangers for sanitary water
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- 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
- F24H1/52—Water heaters for central heating incorporating heaters for domestic water incorporating heat exchangers for domestic water
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- 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
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Instantaneous Water Boilers, Portable Hot-Water Supply Apparatuses, And Control Of Portable Hot-Water Supply Apparatuses (AREA)
Abstract
Description
La présente invention a trait aux chaudières à gaz et, en particulier, bien que non exclusivement, aux chaudières murales domestiques à deux services : chauffage et eau chaude sanitaire instantanée. Elle a pour objet un procédé et un dispositif permettant de préchauffer l'eau du réseau de distribution sanitaire avant son passage dans l'échangeur de chaleur. The present invention relates to gas boilers and, in particular, although not exclusively, to domestic wall-hung boilers with two services: heating and instant domestic hot water. It relates to a method and a device for preheating the water of the sanitary distribution network before it passes through the heat exchanger.
Ces appareils de chauffage ne possèdent qu'un seul échangeur de chaleur pour la production de l'eau chaude sanitaire, et présentent des inconvénients en ce qui concerne leur efficacité causée par l'abaissement de la température de l'eau froide admise dans ledit échangeur, notamment en période hivernale. Compte-tenu d'un même débit spécifique et pour une même élévation de température, plus la température de l'eau du réseau de distribution sanitaire est basse, plus basse sera la température de l'eau chaude à la sortie de 1 'échangeur. These heaters have only one heat exchanger for the production of domestic hot water, and have drawbacks with regard to their efficiency caused by the lowering of the temperature of the cold water admitted into said exchanger. , especially in winter. Given the same specific flow rate and for the same temperature rise, the lower the temperature of the water in the sanitary distribution network, the lower will be the temperature of the hot water at the outlet of the exchanger.
La présente invention permet de remédier à cet inconvénient, et vise à perfectionner ces appareils en les munissant d'un échangeur de préchauffage sanitaire, afin d'augmenter la température de l'eau avant son passage dans l'échangeur de chaleur et, par là méme, d'augmenter la puissance de ces appareils en production d'eau chaude sanitaire. The present invention overcomes this drawback, and aims to improve these devices by providing them with a domestic preheating exchanger, in order to increase the temperature of the water before it passes through the heat exchanger and thereby even, to increase the power of these devices in domestic hot water production.
A cet effet, l'invention a pour objet une chaudière à gaz à échangeur de préchauffage sanitaire comprenant un corps de chauffe, un échangeur, un brûleur alimenté par une électrovanne, une vanne trois voies distribuant l'eau primaire, soit vers un circuit long lors du fonctionnement en chauffage, soit vers un circuit court lors du puisage d'eau chaude sanitaire avec une pompe de circulation interposée sur le conduit de retour à l'échangeur, caractérisée en ce que l'échangeur de préchauffage sanitaire comprend un circuit primaire et un circuit secondaire : la transmission calorifique de l'eau de chauffage à l'eau sanitaire se faisant selon le principe du "bain-marie", dans lequel on fait circuler dans le circuit primaire le fluide de chauffage recueillant ainsi l'eau chaude sanitaire à la sortie du circuit secondaire. To this end, the subject of the invention is a gas boiler with a sanitary preheating exchanger comprising a heating body, an exchanger, a burner supplied by a solenoid valve, a three-way valve distributing the primary water, ie to a long circuit. during heating operation, either to a short circuit when drawing domestic hot water with a circulation pump interposed on the return pipe to the exchanger, characterized in that the domestic preheating exchanger comprises a primary circuit and a secondary circuit: the heat transmission of the heating water to the domestic water is done according to the "bain-marie" principle, in which the heating fluid is circulated in the primary circuit thus collecting the domestic hot water at the output of the secondary circuit.
Chaudière dans laquelle le circuit secondaire de l'échangeur de préchauffage sanitaire se situe en série et en amont du circuit secondaire de l'échangeur. Boiler in which the secondary circuit of the domestic preheating exchanger is located in series and upstream of the secondary circuit of the exchanger.
D'autres caractéristiques et avantages ressortiront de la description qui va suivre d'un mode de réalisation du dispositif de l'invention, description donnée à titre d'exemple uniquement et en regard des dessins annexés, sur lesquels les figures représentent schématiquement et partiellement une chaudière à gaz équipee d'un échangeur de préchauffage sanitaire conformément à l'invention. Other characteristics and advantages will emerge from the description which follows of an embodiment of the device of the invention, description given by way of example only and with reference to the appended drawings, in which the figures schematically and partially represent a gas boiler fitted with a domestic preheating exchanger according to the invention.
La figure 1 représente une vue schématique d'une chaudière à gaz équipée d'un échangeur de préchauffage sanitaire conforme à l'invention, et dans laquelle le corps de chauffe constitue l'échangeur. FIG. 1 represents a schematic view of a gas boiler equipped with a sanitary preheating exchanger according to the invention, and in which the heating body constitutes the exchanger.
La figure 2 représente les mêmes caractéristiques et les mêmes éléments que la figure 1, à la différence que l'échangeur est sépare du corps de chauffe. FIG. 2 shows the same characteristics and the same elements as in FIG. 1, with the difference that the exchanger is separated from the heating body.
En référence à la figure l, on a représente schématiquement un corps de chauffe 2 constituant l'échangeur 3 chauffé par un bruleur 4, lui-même alimenté en gaz par l'intermédiaire d'une électrovanne 5, une vanne trois voies 6 distribue l'eau primaire sortant de l'échangeur par le conduit 7, soit vers un circuit long en direction du départ chauffage 8, avec le retour par le conduit 9, soit vers un circuit court 10 lors du puisage d'eau sanitaire. Une pompe de circulation 11 etant interposée sur le conduit 12 de retour à l'échangeur 3. Referring to Figure l, there is schematically a heating body 2 constituting the exchanger 3 heated by a burner 4, itself supplied with gas via a solenoid valve 5, a three-way valve 6 distributes l primary water leaving the exchanger via the pipe 7, either towards a long circuit in the direction of the heating flow 8, with the return via the pipe 9, or towards a short circuit 10 during the drawing of sanitary water. A circulation pump 11 being interposed on the conduit 12 returning to the exchanger 3.
Est aussi représenté schématiquement en 1 l'échangeur de préchauffage sanitaire à production instantanée comprenant, un circuit primaire 13 et un circuit secondaire 14. La transmission calorifique de l'eau de chauffage à l'eau sanitaire se faisant selon le principe du "bain-marie". Le fluide chauffant et l'eau à réchauffer vont en sens inverse. Also shown schematically in 1 is the instantaneous domestic preheating exchanger comprising, a primary circuit 13 and a secondary circuit 14. The heat transmission of the heating water to the domestic water is done according to the principle of "bath- married". The heating fluid and the water to be heated go in the opposite direction.
Le circuit secondaire 14 de l'échangeur de préchauffage 1 se situe en série et en amont du circuit secondaire 17 de l'échangeur 3 suivant le sens de circulation de l'eau sanitaire. Il comprend une entrée par le conduit 15 et une sortie 16. Ainsi, en fonctionnement sanitaire, l'eau à son entrée 15' dans l'échangeur 3 sera préchauffée par l'échangeur de préchauffage sanitaire 1.The secondary circuit 14 of the preheating exchanger 1 is located in series and upstream of the secondary circuit 17 of the exchanger 3 in the direction of circulation of the domestic water. It comprises an inlet via the conduit 15 and an outlet 16. Thus, in sanitary operation, the water at its inlet 15 'in the exchanger 3 will be preheated by the sanitary preheating exchanger 1.
La figure 2 représente les mêmes éléments et les mêmes caractéristiques que la figure 1, à la différence que l'échangeur 3 est séparé du corps de chauffe 2. FIG. 2 represents the same elements and the same characteristics as FIG. 1, with the difference that the exchanger 3 is separated from the heating body 2.
La chaudière équipée du dispositif de l'invention peut bien entendu conserver son système traditionnel de régulation de débit de gaz au bruleur. The boiler equipped with the device of the invention can of course keep its traditional system for regulating the flow of gas to the burner.
L'utilisation, selon l'invention, d'un échangeur de préchauffage sanitaire permet d'augmenter l'efficacité de ces appareils, notamment lorsque la température d'arrivée d'eau froide du reseau de distribution est basse. Elle permet, par là même, d'augmenter la puissance de ces appareils en production d'eau chaude sanitaire. The use, according to the invention, of a domestic preheating exchanger makes it possible to increase the efficiency of these devices, in particular when the cold water inlet temperature of the distribution network is low. It allows, thereby, to increase the power of these devices in the production of domestic hot water.
A titre de comparaison, alors qu'une chaudière à gaz à double service, d'une puissance de 23 KW élève la température de l'eau sanitaire de 30"C avec un débit spécifique de 11 1/mm, cette même chaudière équipée d'un échangeur de
préchauffage sanitaire, conformément à l'invention permet d'élever la température de l'eau sanitaire à 43"C avec un même débit spécifique de 11 I/mm. La puissance de l'échangeur de préchauffage sanitaire utilisé pour les essais étant de 10 KW.By way of comparison, while a dual-service gas boiler, with a power of 23 KW raises the temperature of the domestic water by 30 "C with a specific flow rate of 11 1 / mm, this same boiler equipped with '' a heat exchanger
domestic preheating, in accordance with the invention makes it possible to raise the temperature of the domestic water to 43 "C with the same specific flow rate of 11 I / mm. The power of the domestic preheating exchanger used for the tests being 10 KW.
Enfin l'invention n'est evidement pas limitée au mode de réalisation représenté et décrit ci-dessus, mais en couvre au contraire toutes les variantes en ce qui concerne leurs constitutions (cuivre, acier inox, etc...), leurs dimensions de telle manière à pouvoir facilement les mettre en oeuvre sur ce type d'appareil, et leur différentes puissances. Finally, the invention is obviously not limited to the embodiment shown and described above, but on the contrary covers all variants with regard to their constitutions (copper, stainless steel, etc.), their dimensions of so as to be able to easily implement them on this type of device, and their different powers.
L'invention s'applique à tout type de chaudière à gaz à deux services, chauffage et eau chaude sanitaire instantanée. The invention applies to any type of gas boiler with two services, heating and instant domestic hot water.
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9409124A FR2722560B1 (en) | 1994-07-18 | 1994-07-18 | GAS BOILER WITH SANITARY PREHEATING EXCHANGER |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9409124A FR2722560B1 (en) | 1994-07-18 | 1994-07-18 | GAS BOILER WITH SANITARY PREHEATING EXCHANGER |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2722560A1 true FR2722560A1 (en) | 1996-01-19 |
FR2722560B1 FR2722560B1 (en) | 1996-09-06 |
Family
ID=9465681
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR9409124A Expired - Fee Related FR2722560B1 (en) | 1994-07-18 | 1994-07-18 | GAS BOILER WITH SANITARY PREHEATING EXCHANGER |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2722560B1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1703213A1 (en) * | 2005-02-07 | 2006-09-20 | Robert Bosch Gmbh | Sanitary water heater |
WO2009136211A2 (en) * | 2008-05-09 | 2009-11-12 | Paul Frederick Dudley | Water heating system |
CN102401422A (en) * | 2011-10-10 | 2012-04-04 | 艾欧史密斯(中国)热水器有限公司 | Gas hot water heating device and system |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0098450A2 (en) * | 1982-07-02 | 1984-01-18 | Joh. Vaillant GmbH u. Co. | Fuel-fired heat source |
FR2569469A1 (en) * | 1984-08-22 | 1986-02-28 | Collard Trolart Sa | Method for saving energy and heating installation with domestic hot water production making use thereof |
GB2218498A (en) * | 1988-05-11 | 1989-11-15 | United House Group Limited | Improvements in or relating to a heating and hot water supply arrangement |
-
1994
- 1994-07-18 FR FR9409124A patent/FR2722560B1/en not_active Expired - Fee Related
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0098450A2 (en) * | 1982-07-02 | 1984-01-18 | Joh. Vaillant GmbH u. Co. | Fuel-fired heat source |
FR2569469A1 (en) * | 1984-08-22 | 1986-02-28 | Collard Trolart Sa | Method for saving energy and heating installation with domestic hot water production making use thereof |
GB2218498A (en) * | 1988-05-11 | 1989-11-15 | United House Group Limited | Improvements in or relating to a heating and hot water supply arrangement |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1703213A1 (en) * | 2005-02-07 | 2006-09-20 | Robert Bosch Gmbh | Sanitary water heater |
WO2009136211A2 (en) * | 2008-05-09 | 2009-11-12 | Paul Frederick Dudley | Water heating system |
US20110174463A1 (en) * | 2008-05-09 | 2011-07-21 | Paul Frederick Dudley | Water Heating System |
WO2009136211A3 (en) * | 2008-05-09 | 2012-01-19 | Paul Frederick Dudley | Water heating system |
CN102401422A (en) * | 2011-10-10 | 2012-04-04 | 艾欧史密斯(中国)热水器有限公司 | Gas hot water heating device and system |
WO2013053279A1 (en) * | 2011-10-10 | 2013-04-18 | 艾欧史密斯(中国)热水器有限公司 | Gas hot water heating device and system |
US9651266B2 (en) | 2011-10-10 | 2017-05-16 | A. O. Smith Corporation | Gas hot water heating device and system |
Also Published As
Publication number | Publication date |
---|---|
FR2722560B1 (en) | 1996-09-06 |
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