EP0159932B1 - Hot water storage heater - Google Patents

Hot water storage heater Download PDF

Info

Publication number
EP0159932B1
EP0159932B1 EP85400646A EP85400646A EP0159932B1 EP 0159932 B1 EP0159932 B1 EP 0159932B1 EP 85400646 A EP85400646 A EP 85400646A EP 85400646 A EP85400646 A EP 85400646A EP 0159932 B1 EP0159932 B1 EP 0159932B1
Authority
EP
European Patent Office
Prior art keywords
tank
water
hot water
installation
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.)
Expired
Application number
EP85400646A
Other languages
German (de)
French (fr)
Other versions
EP0159932A1 (en
Inventor
Benoît Fardeau
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.)
Engie SA
Original Assignee
Gaz de France 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.)
Filing date
Publication date
Application filed by Gaz de France SA filed Critical Gaz de France SA
Priority to AT85400646T priority Critical patent/ATE30465T1/en
Publication of EP0159932A1 publication Critical patent/EP0159932A1/en
Application granted granted Critical
Publication of EP0159932B1 publication Critical patent/EP0159932B1/en
Expired legal-status Critical Current

Links

Images

Classifications

    • 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
    • F24D17/00—Domestic hot-water supply systems
    • 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
    • F24H1/18—Water-storage heaters
    • F24H1/186—Water-storage heaters using fluid fuel

Definitions

  • the invention relates to an installation for producing hot water.
  • a heating body is used, the nominal power of which corresponds substantially to the average power per unit of time (for example 24 hours) usually required at the installation, and this generator is enclosed in a storage tank.
  • large capacity to cope with any significant instantaneous demand, essentially by playing with the stratification in this balloon of the hot layers which are placed above and the cold layers which are placed below.
  • the disadvantage of this type of installation is that it lacks flexibility, particularly in terms of the production of the heating generator enclosed inside a large capacity storage tank, and also in terms of the layout. in premises of such an installation.
  • Document GB-A-670 644 proposes a hot water production installation of this second type comprising two tanks; a first tank of reduced volume for bringing the water to temperature by means of a heating body situated under its base, and a second tank, of greater volume than that of the first, intended for the storage of water which was heated in the first tank, this water being drawn from this second tank in the event of significant demand. Under such heavy withdrawal conditions, recirculation of water between the tanks is provided.
  • the object of the invention is to solve these difficulties.
  • the first tank communicates with the second tank by an overflow of overflow.
  • the first tank With such a design of the installation, it is possible to build the first tank with its integrated heating body in the best operating, efficiency and installation conditions of this unit.
  • the provision of the second tank the volume of which is practically independent of that of the first, enables storage of the strictly adapted volume required.
  • the design and construction of this second tank are particularly simple, since it is essentially a storage tank.
  • the first tank communicates with the second by an overflow of overflow, it is ensured that the heating body always remains submerged by the first tank, which constitutes an essential criterion for the operational safety of this heating body.
  • the recirculation of low-flow water provided between the second tank and the first makes it possible to avoid any drop in temperature of the water stored in the second tank, if the storage period without sampling is particularly long.
  • the variable level of hot water stored in the second tank makes it possible to meet any instantaneous demand, even of high flow rate, the storage tank being refilled during periods of low withdrawal or of non-use of the installation.
  • a first tank 1 of reduced volume in which is immersed the heating body 2 of the installation constituted for example by a heat generator operating with a mixture of combustible gas and air supplied in 3 in the installation.
  • the combustion products leave the heating body 2 as indicated in 4.
  • these combustion products or "fumes" are brought into the tank 1 on the side of this tank or cold water entering the installation is introduced as indicated by the arrow 5 through the pipe 6.
  • the tank 1 may for example have a number of walls such as the wall marked 7 in the drawing ensuring a certain circulation of the water to be heated against the current with the combustion gases.
  • the hot water outlet advantageously takes place on the opposite side as indicated by the pipe 8 forming too full, which pours into the storage tank 9.
  • This tank 9 essentially forms a buffer tank and the level of hot water in this tank varies according to demand, for example between a minimum height h m and a maximum height hM.
  • the hot water withdrawal for the needs of the installation is done by a pipe 10.
  • recirculation can be provided at a reduced flow of water between the tank 9 and the tank 1 by means of a pipe. 11 and a recirculation pump 12.
  • the recirculation pump 12 can optionally be controlled by thermostatic means turning it on when the temperature of the water stored in the tank 9 drops below a predetermined value.
  • the installation obviously includes conventional regulating members ensuring the stopping of the cold water inlet at 5 if the tank 9 is full and possibly stopping the drawing of hot water in the tank 9 if the level in this tank reaches the predetermined minimum level hm.
  • the heating tank 1 may be arranged at least partially in the storage tank 9.
  • volume of the storage tank will be optimized according to the peak flow to be satisfied, its duration and its frequency.

Landscapes

  • 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)
  • Heat-Pump Type And Storage Water Heaters (AREA)
  • Cookers (AREA)
  • Breeding Of Plants And Reproduction By Means Of Culturing (AREA)
  • Instantaneous Water Boilers, Portable Hot-Water Supply Apparatuses, And Control Of Portable Hot-Water Supply Apparatuses (AREA)

Abstract

Apparatus and method for producing and storing heated liquid such as hot water, with immersed heating of the liquid. A tank of relatively small volume for heating the liquid to the temperature required for use, having a heating body at least partially immersed therein, and a second tank of larger volume communicating with the first tank, preferably by an overflow, are provided. The second tank serves as a reservoir for hot liquid produced in the first tank, the liquid level within the second tank varying, in accordance with desired use. The present invention may be applied for producing heated liquid, e.g. hot water, for both domestic and industrial use.

Description

L'invention a pour objet une installation de production d'eau chaude.The invention relates to an installation for producing hot water.

L'eau ayant une capacité calorifique importante, la production de grandes quantités d'eau chaude, nécessite un apport d'énergie calorifique important.Water having a significant calorific capacity, the production of large quantities of hot water, requires an important contribution of calorific energy.

Il arrive fréquemment que les installations de fourniture d'eau chaude doivent faire face à des demandes quasi instantanées très importantes, lesquelles peuvent être séparées dans le temps par de longues périodes pendant lesquelles la demande est quasiment nulle. Tel est le cas notamment des installations de production d'eau chaude sanitaire dans les immeubles d'habitation et également, de diverses installations de production d'eau chaude pour des besoins industriels.Frequently hot water supply installations have to deal with very large almost instantaneous demands, which can be separated in time by long periods during which the demand is almost zero. This is particularly the case for domestic hot water production facilities in apartment buildings and also, various hot water production facilities for industrial needs.

Les solutions proposées par l'art antérieur sont essentiellement de deux types.The solutions proposed by the prior art are essentially of two types.

Selon un premier type d'installation, on équipe celle-ci d'un corps de chauffe de puissance surdi- mensionnée de façon qu'il soit apte à faire face à toute demande instantanée de fourniture d'eau chaude. Celà conduit à des surcoûts d'installation, et également à des mauvais rendements de combustion lorsque l'installation est utilisée à faible puissance, très loin de son régime nominal de fonctionnement.According to a first type of installation, it is fitted with an oversized power heater so that it is able to meet any instantaneous demand for hot water supply. This leads to additional installation costs, and also to poor combustion yields when the installation is used at low power, very far from its nominal operating speed.

Selon un second type d'installation, on utilise un corps de chauffe dont la puissance nominale corresponde sensiblement à la puissance moyenne par unité de temps (par exemple 24 heures) demandée habituellement à l'installation, et ce générateur est enfermé dans un ballon de grande capacité permettant de faire face à toute demande importante instantanée, en jouant essentiellement sur la stratification dans ce ballon des couches chaudes qui sont placées au-dessus et des couches froides qui sont placées en-dessous. L'inconvénient de ce genre d'installation est qu'il manque de souplesse, notamment au niveau de la réalisation du générateur de chauffe enfermé à l'intérieur d'un ballon de stockage de grande capacité, et également au niveau de l'implantation dans des locaux d'une telle installation.According to a second type of installation, a heating body is used, the nominal power of which corresponds substantially to the average power per unit of time (for example 24 hours) usually required at the installation, and this generator is enclosed in a storage tank. large capacity to cope with any significant instantaneous demand, essentially by playing with the stratification in this balloon of the hot layers which are placed above and the cold layers which are placed below. The disadvantage of this type of installation is that it lacks flexibility, particularly in terms of the production of the heating generator enclosed inside a large capacity storage tank, and also in terms of the layout. in premises of such an installation.

Au document GB-A-670 644 est proposée une installation de production d'eau chaude de ce second type comprenant deux cuves; une première cuve de volume réduit de mise à température de l'eau au moyen d'un corps de chauffe situé sous sa base, et une seconde cuve, de volume plus important que celui de la première, destinée au stockage de l'eau qui a été chauffée dans la première cuve, cette eau étant soutirée de cette seconde cuve en cas de demande importante. Dans de telles conditions de soutirage important, une recirculation d'eau entre les cuves est prévue.Document GB-A-670 644 proposes a hot water production installation of this second type comprising two tanks; a first tank of reduced volume for bringing the water to temperature by means of a heating body situated under its base, and a second tank, of greater volume than that of the first, intended for the storage of water which was heated in the first tank, this water being drawn from this second tank in the event of significant demand. Under such heavy withdrawal conditions, recirculation of water between the tanks is provided.

Cependant, outre le fait déjà relevé que l'on joue sur la stratification des températures, cette installation n'est pas prévue pour assurer une circulation d'eau entre les cuves en cas de faible demande. Aussi, si la durée de stockage sans prélèvement de l'eau dans la seconde cuve est particulièrement longue, la température de l'eau qui y est contenue va diminuer. On ne pourra alors plus soutirer instantanément de l'installation une grande quantité d'eau chaude.However, in addition to the fact already noted that we play on the stratification of temperatures, this installation is not intended to ensure a circulation of water between the tanks in case of low demand. Also, if the storage period without taking water from the second tank is particularly long, the temperature of the water contained therein will decrease. It will then no longer be possible to instantly withdraw a large quantity of hot water from the installation.

L'invention a pour objet de résoudre ces difficultés.The object of the invention is to solve these difficulties.

A cet effet, une installation de production d'eau chaude conforme à l'invention, du type comprenant:

  • - une première cuve de volume réduit recevant l'eau à chauffer,
  • - des moyens de chauffage de l'eau contenue dans la première cuve,
  • - une entrée d'eau froide débouchant dans ladite première cuve,
  • - une seconde cuve de volume plus important que la première,
  • - des moyens d'amenée d'eau de la première cuve vers la seconde,
  • - au moins une sortie d'eau prélevée dans la seconde cuve, et
  • - des moyens de recirculation de l'eau à faible débit de la seconde cuve vers la première, se caractérise en ce que:
  • - les moyens de chauffage comprennent un corps de chauffe immergé dans ladite première cuve, et en ce que
  • - des moyens sont prévus pour faire varier le niveau d'eau dans la seconde cuve et y maintenir une température sensiblement constante, lesdits moyens comprenant:
    • • la sortie d'eau chaude de la seconde cuve, prévue vers son fond,
    • • des moyens de détection du niveau d'eau contenue dans la seconde cuve,
    • e des moyens thermostatiques mesurant la température de l'eau dans la seconde cuve,
    • a lesdits moyens de recirculation de l'eau de la seconde cuve vers la première commandés par lesdits moyens thermostatiques lorsque la température de l'eau dans la seconde cuve descend en dessous d'un seuil déterminé, et
    • a des moyens de commande desdits moyens de chauffage de la première cuve en fonction des données recueillies par lesdits moyens de détection de niveau d'eau dans la seconde cuve et/ou lesdits moyens thermostatiques de mesure de sa température.
For this purpose, a hot water production installation according to the invention, of the type comprising:
  • - a first tank of reduced volume receiving the water to be heated,
  • - means for heating the water contained in the first tank,
  • - a cold water inlet opening into said first tank,
  • - a second tank of greater volume than the first,
  • means for bringing water from the first tank to the second,
  • - at least one water outlet taken from the second tank, and
  • - means for recirculating the water at low flow rate from the second tank to the first, is characterized in that:
  • the heating means comprise a heating body immersed in said first tank, and in that
  • means are provided for varying the water level in the second tank and maintaining a substantially constant temperature therein, said means comprising:
    • • the hot water outlet from the second tank, provided towards its bottom,
    • Means for detecting the level of water contained in the second tank,
    • e thermostatic means measuring the temperature of the water in the second tank,
    • has said means for recirculating the water from the second tank to the first controlled by said thermostatic means when the temperature of the water in the second tank drops below a determined threshold, and
    • has means for controlling said means for heating the first tank as a function of the data collected by said means for detecting the level of water in the second tank and / or said thermostatic means for measuring its temperature.

Avantageusement, la première cuve communique avec la seconde cuve par un trop plein de débordement.Advantageously, the first tank communicates with the second tank by an overflow of overflow.

Avec une telle conception de l'installation, il est possible de construire la première cuve avec son corps de chauffe intégré dans les meilleures conditions de fonctionnement, de rendement et d'implantation de cette unité. En outre, la prévision de la seconde cuve dont le volume est pratiquement indépendant de celui de la première, permet de réaliser un stockage du volume strictement adapté requis. En outre, la conception et la construction de cette seconde cuve sont particulièrement simples, puisqu'il s'agit essentiellement d'un ballon de stockage.With such a design of the installation, it is possible to build the first tank with its integrated heating body in the best operating, efficiency and installation conditions of this unit. In addition, the provision of the second tank, the volume of which is practically independent of that of the first, enables storage of the strictly adapted volume required. In addition, the design and construction of this second tank are particularly simple, since it is essentially a storage tank.

Du fait que la première cuve communique avec la seconde par un trop plein de débordement, on est assuré que le corps de chauffe reste toujours immergée par la première cuve, ce qui constitue un critère essentiel pour la sécurité de fonctionnement de ce corps de chauffe.Because the first tank communicates with the second by an overflow of overflow, it is ensured that the heating body always remains submerged by the first tank, which constitutes an essential criterion for the operational safety of this heating body.

En outre, la recirculation d'eau à faible débit prévue entre la seconde cuve et la première, permet d'éviter toute baisse de température de l'eau stockée dans la seconde cuve, si la durée de stockage sans prélèvement est particulièrement longue. Le niveau variable de l'eau chaude stockée dans la seconde cuve permet de faire face à toute demande instantanée même de débit important, la cuve de stockage étant à nouveau remplie lors des périodes de faible soutirage ou de non utilisation de l'installation.In addition, the recirculation of low-flow water provided between the second tank and the first, makes it possible to avoid any drop in temperature of the water stored in the second tank, if the storage period without sampling is particularly long. The variable level of hot water stored in the second tank makes it possible to meet any instantaneous demand, even of high flow rate, the storage tank being refilled during periods of low withdrawal or of non-use of the installation.

L'invention apparaîtra plus clairement à l'aide de la description qui va suivre faite en référence au dessin annexé illustrant de façon schématique une telle installation.The invention will appear more clearly with the aid of the description which follows, made with reference to the appended drawing schematically illustrating such an installation.

En se référant au dessin, on aperçoit une première cuve 1 de volume réduit dans laquelle est immergé le corps de chauffe 2 de l'installation, constitué par exemple par un générateur de chaleur fonctionnant avec un mélange de gaz combustible et d'air amené en 3 dans l'installation. Les produits de combustion sortent du corps de chauffe 2 comme indiqué en 4. De préférence ces produits de combustion ou «fumées» sont amenés dans la cuve 1 du côté de cette cuve ou est introduite l'eau froide pénétrant dans l'installation comme indiqué par la flèche 5 par la conduite 6. La cuve 1 peut par exemple comporter un certain nombre de parois tel que la paroi repérée 7 au dessin assurant une certaine circulation de l'eau à chauffer à contre-courant avec les gaz de combustion. La sortie d'eau chaude se fait avantageusement à l'opposée comme indiqué par le conduit 8 formant trop plein, qui se déverse dans la cuve 9 de stockage. Cette cuve 9 forme essentiellement réservoir tampon et le niveau de l'eau chaude dans cette cuve varie selon la demande par exemple entre une hauteur minimale hm et une hauteur maximale hM. Le soutirage d'eau chaude pour les besoins de l'installation se fait par une conduite 10.Referring to the drawing, we see a first tank 1 of reduced volume in which is immersed the heating body 2 of the installation, constituted for example by a heat generator operating with a mixture of combustible gas and air supplied in 3 in the installation. The combustion products leave the heating body 2 as indicated in 4. Preferably these combustion products or "fumes" are brought into the tank 1 on the side of this tank or cold water entering the installation is introduced as indicated by the arrow 5 through the pipe 6. The tank 1 may for example have a number of walls such as the wall marked 7 in the drawing ensuring a certain circulation of the water to be heated against the current with the combustion gases. The hot water outlet advantageously takes place on the opposite side as indicated by the pipe 8 forming too full, which pours into the storage tank 9. This tank 9 essentially forms a buffer tank and the level of hot water in this tank varies according to demand, for example between a minimum height h m and a maximum height hM. The hot water withdrawal for the needs of the installation is done by a pipe 10.

Avantageusement pour éviter un refroidissement de l'eau stockée dans la cuve 9 lors d'une période de stockage importante, on peut prévoir une recirculation à débit réduit d'eau entre la cuve 9 et la cuve 1 par l'intermédiaire d'une conduite 11 et d'une pompe de recirculation 12. La pompe de recirculation 12 peut éventuellement être commandée par des moyens thermostatiques la mettant en route lorsque la température de l'eau stockée dans la cuve 9 descend en-dessous d'une valeur prédéterminée.Advantageously, in order to avoid cooling of the water stored in the tank 9 during a long storage period, recirculation can be provided at a reduced flow of water between the tank 9 and the tank 1 by means of a pipe. 11 and a recirculation pump 12. The recirculation pump 12 can optionally be controlled by thermostatic means turning it on when the temperature of the water stored in the tank 9 drops below a predetermined value.

L'installation comprend évidemment des organes classiques de régulation assurant l'arrêt de l'entrée d'eau froide en 5 si la cuve 9 est pleine et éventuellement l'arrêt du soutirage d'eau chaude dans la cuve 9 si le niveau dans cette cuve atteint le niveau minimum prédéterminé hm.The installation obviously includes conventional regulating members ensuring the stopping of the cold water inlet at 5 if the tank 9 is full and possibly stopping the drawing of hot water in the tank 9 if the level in this tank reaches the predetermined minimum level hm.

Diverses variantes peuvent être apportées au mode de réalisation décrit et illustré. Ainsi, par exemple, la cuve 1 de chauffage peut-être disposée au moins en partie dans la cuve 9 de stockage.Various variants can be made to the embodiment described and illustrated. Thus, for example, the heating tank 1 may be arranged at least partially in the storage tank 9.

En outre, le volume de la cuve de stockage sera optimisé en fonction du débit de pointe à satisfaire, de sa durée et de sa fréquence.In addition, the volume of the storage tank will be optimized according to the peak flow to be satisfied, its duration and its frequency.

Claims (3)

1. Installation for producing hot water and comprising:
- a first tank (1) of small volume receiving the water to be heated,
- means (2) of heating the water contained in the first tank,
- an inlet (6) for cold water, discharging into the said first tank (1),
- a second tank (9) of larger capacity than the first (1
- means (8) for conveying water from the first tank to the second,
- at least one outlet (10) for water drawn off from the second tank (9), and
- means (12) for recycling water at a low rate of throughput from the second tank (9) to the first tank (1),

the said installation being characterized in that:
- the heating means (2) comprise a heating member immersed in the said first tank (1) and in that
- means are provided for varying the level of water in the second tank (9) and for maintaining a substantially constant temperature therein, the said means comprising:
9 the outlet (10) for hot water from the second tank (9), provided towards the bottom thereof,
a means for detecting the level of water contained in the second tank (9),
• thermostatic means for measuring the temperature of water in the second tank (9),
a the said means (12) for recirculating water from the second tank (9) to the first tank (1) operated by the said thermostatic means when the water temperature in the second tank falls below a determined threshold, and
• means for operating the said heating means (2) of the first tank (1) as a function of data gathered by the said means of detecting the level of water in the second tank and/or the said thermostatic means of measuring the temperature thereof.
2. An installation according to claim 1, characterized in that the first tank (1) communicates with the second tank (9) by an overflow (8).
3. An installation according to one of the preceding claims, characterized in that the first tank (1) comprises a heating member (2) of the combustion type disposed in the said tank with the combustion products circuit arranged in counter-current with the circuit of water to be heated in the said tank.
EP85400646A 1984-04-05 1985-04-02 Hot water storage heater Expired EP0159932B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT85400646T ATE30465T1 (en) 1984-04-05 1985-04-02 HEATING WATER STORAGE DEVICE.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8405394A FR2562642B1 (en) 1984-04-05 1984-04-05 HOT WATER PRODUCTION PLANT WITH STORAGE CAPACITY
FR8405394 1984-04-05

Publications (2)

Publication Number Publication Date
EP0159932A1 EP0159932A1 (en) 1985-10-30
EP0159932B1 true EP0159932B1 (en) 1987-10-28

Family

ID=9302875

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85400646A Expired EP0159932B1 (en) 1984-04-05 1985-04-02 Hot water storage heater

Country Status (7)

Country Link
US (1) US4617910A (en)
EP (1) EP0159932B1 (en)
JP (1) JPS60223953A (en)
AT (1) ATE30465T1 (en)
CA (1) CA1263827A (en)
DE (1) DE3560846D1 (en)
FR (1) FR2562642B1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8516837B2 (en) * 2010-08-04 2013-08-27 Manipal University Defrosting a freezing unit and liquid purification
ES2752471T3 (en) * 2015-06-03 2020-04-06 Danieli Off Mecc Process to standardize the temperature of a liquid
AU2015264788A1 (en) * 2015-12-01 2017-06-15 Garth Robert Plowman Portable Solar Heating Apparatus

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE21393E (en) * 1940-03-12 losee
US851887A (en) * 1907-02-05 1907-04-30 Theodore J Ingold Tank-heater.
US995219A (en) * 1908-04-07 1911-06-13 Sun Power Company Utilizing natural heat.
DE625026C (en) * 1930-12-16 1936-02-01 Ctc Ab Hot water storage tank connected to a liquid heater by a circulation line
GB670664A (en) * 1949-07-28 1952-04-23 Parkinson Water Heaters Ltd Improvements in or relating to gas-fired storage water heaters
FR1081318A (en) * 1952-07-16 1954-12-17 A Hering Ag Flame and smoke tube boiler
US3105137A (en) * 1960-01-19 1963-09-24 Electro Temp Corp Heating and/or cooling system
DE1297953B (en) * 1961-06-12 1969-06-19 Hengen & Co Inh Paul Sticht J Vertical gas immersion heater for indirect heating of liquids
US3356135A (en) * 1964-12-24 1967-12-05 Robert K Sayre Once-through steam generator with means to provide saturated feed water
DE2641601B2 (en) * 1976-09-16 1979-11-15 Stiebel Eltron Gmbh & Co Kg, 3450 Holzminden Water storage heater
JPS54158742A (en) * 1978-06-05 1979-12-14 Takasago Thermal Eng Co Lts Warm water manufacturing method

Also Published As

Publication number Publication date
ATE30465T1 (en) 1987-11-15
EP0159932A1 (en) 1985-10-30
JPS60223953A (en) 1985-11-08
FR2562642A1 (en) 1985-10-11
FR2562642B1 (en) 1986-10-31
CA1263827A (en) 1989-12-12
DE3560846D1 (en) 1987-12-03
US4617910A (en) 1986-10-21

Similar Documents

Publication Publication Date Title
EP2247897B1 (en) Equipment for producing domestic hot water
EP1724531B1 (en) System and method for heating sanitary hot water using residual heat of waste water
EP1947394B1 (en) Installation for domestic heating and/or for producing domestic hot water
EP1978311A2 (en) System solar heating autonomous and independent of another energy source
EP2489954A2 (en) Method and device for managing a hot-water storage system
EP0159932B1 (en) Hot water storage heater
FR2896306A1 (en) Domestic central heating and hot water system comprises reserve hot water tank fitted with renewable energy heating system, separate hot water tank being heated by a heat exchanger, through which hot water from boiler and reserve tank flows
EP3517871B1 (en) Heat recovery device
EP0172086A1 (en) Apparatus for heating a building or a room
EP0117796B1 (en) Air conditioning installation for a building
CH619529A5 (en) Device for regulating a combined solar and electric water-heater
US4408715A (en) Heating installation for premises for dwelling or industrial use
FR2553181A1 (en) DEVICE FOR THERMAL STORAGE FROM TWO ENERGY SOURCES, AND INSTALLATION USING SUCH A DEVICE
FR2521270A1 (en) Variable volume hot water storage for solar heater - uses variable volume tank with the entry of cold water controlled by a solenoid valve which is operated by a water temperature transducer
FR2912809A1 (en) Solar heating system for e.g. industrial building, has tanks supplied with solar energy, where system uses coolant presenting high ebullition temperature, low volatility, low kinematic viscosity coefficient and low expansion coefficient
WO2022216146A1 (en) Economical, multifunction and multi-use programmable water heating device, and method for implementing same
FR2557685A1 (en) Hot water heater for boiler employing a heat-transfer fluid
EP2947393B1 (en) Circuit for protection against the effects of overheating in a hot-water production system, and corresponding hot-water production system
CA1205059A (en) Central hot air heating system
WO2012084748A1 (en) System for producing domestic hot water using solar collectors for water heating, in which a single circuit connects a hot water tank and the solar collectors
FR3020128A1 (en) SOLAR INSTALLATION FOR HEATING AND HOT WATER PRODUCTION
FR3115098A1 (en) Thermodynamic heater with optimized regulation
JPS6310343B2 (en)
FR2956475A3 (en) Device for permitting to utilize water-heater with electric resistor as hot water storage in solar panel or heat pump to provide hot water during winter, has connection device connected on cumulus and hot water dispensing system
BE522148A (en)

Legal Events

Date Code Title Description
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

AK Designated contracting states

Designated state(s): AT BE CH DE GB IT LI LU NL SE

17P Request for examination filed

Effective date: 19860122

17Q First examination report despatched

Effective date: 19860616

R17C First examination report despatched (corrected)

Effective date: 19860825

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH DE GB IT LI LU NL SE

REF Corresponds to:

Ref document number: 30465

Country of ref document: AT

Date of ref document: 19871115

Kind code of ref document: T

REF Corresponds to:

Ref document number: 3560846

Country of ref document: DE

Date of ref document: 19871203

ITF It: translation for a ep patent filed

Owner name: ING. C. CORRADINI & C. S.R.L.

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 19910318

Year of fee payment: 7

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: LU

Payment date: 19910320

Year of fee payment: 7

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 19910326

Year of fee payment: 7

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: AT

Payment date: 19910328

Year of fee payment: 7

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 19910409

Year of fee payment: 7

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 19910429

Year of fee payment: 7

ITTA It: last paid annual fee
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 19910430

Year of fee payment: 7

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19910626

Year of fee payment: 7

EPTA Lu: last paid annual fee
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19920402

Ref country code: GB

Effective date: 19920402

Ref country code: AT

Effective date: 19920402

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Effective date: 19920403

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Effective date: 19920430

Ref country code: CH

Effective date: 19920430

Ref country code: BE

Effective date: 19920430

BERE Be: lapsed

Owner name: GAZ DE FRANCE

Effective date: 19920430

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Effective date: 19921101

GBPC Gb: european patent ceased through non-payment of renewal fee
NLV4 Nl: lapsed or anulled due to non-payment of the annual fee
REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Effective date: 19930101

EUG Se: european patent has lapsed

Ref document number: 85400646.7

Effective date: 19921108