EP0403326A1 - Warmwasserspeicher und mit einem solchen Speicher ausgestattete Anlage - Google Patents

Warmwasserspeicher und mit einem solchen Speicher ausgestattete Anlage Download PDF

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Publication number
EP0403326A1
EP0403326A1 EP90401411A EP90401411A EP0403326A1 EP 0403326 A1 EP0403326 A1 EP 0403326A1 EP 90401411 A EP90401411 A EP 90401411A EP 90401411 A EP90401411 A EP 90401411A EP 0403326 A1 EP0403326 A1 EP 0403326A1
Authority
EP
European Patent Office
Prior art keywords
tube
tank
balloon
hot water
water
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
EP90401411A
Other languages
English (en)
French (fr)
Other versions
EP0403326B1 (de
Inventor
Gilbert Naudet
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.)
Chaffoteaux et Maury SAS
Original Assignee
Chaffoteaux et Maury SAS
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Filing date
Publication date
Application filed by Chaffoteaux et Maury SAS filed Critical Chaffoteaux et Maury SAS
Priority to AT90401411T priority Critical patent/ATE91335T1/de
Publication of EP0403326A1 publication Critical patent/EP0403326A1/de
Application granted granted Critical
Publication of EP0403326B1 publication Critical patent/EP0403326B1/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
    • F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
    • F24H1/18—Water-storage heaters
    • 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 invention relates to hot water tanks, that is to say closed tanks capable of containing, for the purpose of storing the corresponding calories, a mass of hot water under pressure intended in particular for sanitary water drawing, the volume of this mass is generally of the order of a hundred liters and its temperature is generally between 50 and 80 ° C.
  • the balloons of the kind in question are served by two tubes, one of which, assigned to the intake and supplied by a network of pressurized cold water, opens into the lower part while the other , assigned to the drawing and connected to at least one hot water distribution tap, opens in the upper part.
  • any opening of the tap results in a distribution of hot water drawn from the upper part of the tank, the volume of water withdrawn being automatically compensated by admission of an equivalent volume of cold water under pressure in the lower part of the tank.
  • the calories necessary for heating the water contained in the flask are generally supplied to it by an independent closed water circuit comprising in series a coil embedded in the flask, a pump circulation and a heat exchanger associated with a heat source such as the burner of a boiler.
  • the coil in question is relatively expensive and the efficiency of the heat exchange which it makes possible is low.
  • the invention makes it possible to reduce this drawback by limiting the number of these connections to three.
  • the balloons of the type in question according to the invention are also equipped with a so-called cold water intake tube opening into the lower part, a hot water withdrawal tube opening into the upper part and a third heating and reheating tube opening into the balloon lower than the sampling tube, and they are essentially characterized in that the total number of tubes serving the water balloon is equal to three.
  • the third tube is mounted in series with the secondary of a heat exchanger whose primary is a source of calories and with a circulation pump making circulate the water in the direction of the tank, the upstream end of this third tube being connected to the so-called cold water intake tube.
  • a non-return member is mounted on the section of the so-called cold water intake tube, between the mouth of this tube in the flask and the point of connection to said tube of the upstream end of the third tube, in a direction such that this section can only be traversed by water leaving the balloon
  • the heat exchanger the secondary of which is mounted in series on the third tube, is an exchanger with high heat exchange capacity, the primary of which is itself connected to the heat exchanger of a boiler, forming with the latter a closed circuit comprising a second circulation pump
  • thermostatic means are provided, sensitive to the temperature of the water at a predetermined level of the tank, to control the excitations of the two circulation pumps
  • the end of the third tube which opens into the balloon is located at a vertical distance between 0 and 200 mm above the average level of the mouth of the tube called the cold water inlet tube, for a cylindrical balloon whose the diameter is between 400 and 500 mm
  • the cold water inlet tube for a cylindrical balloon whose the diameter is between 400 and 500 mm
  • the invention includes, apart from these main provisions, certain other provisions which are preferably used at the same time and which will be more explicitly discussed below.
  • the tank 1 is arranged so as to contain a mass of hot water under pressure while retaining the calories of this mass by appropriate thermal insulation, the volume of said mass being for example order of one hundred liters.
  • the tank 1 is equipped with a first tube 2 called “cold water inlet” (but not always used for such an inlet, as will be explained below), opening into its lower part and a second tube 3 for drawing hot water opening into its upper part.
  • a first tube 2 called “cold water inlet” (but not always used for such an inlet, as will be explained below)
  • second tube 3 for drawing hot water opening into its upper part.
  • the upstream end of the tube 2 is connected, via a safety group 4, to a network 5 for distributing pressurized cold water.
  • the downstream end of the tube 3 is connected to a tap 6.
  • an aquastat 7 associated with an operating circuit 8 capable of controlling the heating of the water contained in the tank as soon as the temperature of this water to a predetermined level drops below a predetermined threshold.
  • a third tube 9 which opens into the balloon at an intermediate level thereof, but generally fairly close to the bottom of the balloon: this level is therefore generally located at a vertical distance H of between 0 and 200 mm above the average level of the mouth of the tube known as the cold water inlet tube 2, for a cylindrical balloon whose diameter is between 400 and 500 mm.
  • the continuous flow path defined in part by said tube 9 for the water for heating the balloon successively passes through a heat exchanger 10, constituting by itself the secondary 102 of this exchanger, and a circulation pump 11 connected so as to send the water to the balloon.
  • the upstream end of the tube 9 is connected to the tube 2 at a point P thereof which is arranged downstream of the safety group 4, generally below the balloon 1.
  • the heat exchanger 10 could be directly the heating body of a boiler, the primary of this exchanger then being formed by the various passages offered to the hot gas originating from the combustion of an appropriate fuel.
  • this exchanger 10 is an exchanger with good thermal efficiency, the primary 101 of which is mounted in series with the exchanger 12 of a boiler 13 such as that which has just been defined and forms a closed circuit. with the latter and with a second circulation pump 15.
  • circuit 14 advantageously forms the "short" loop of a mixed heating installation, that is to say provided to provide both central heating by circulation of hot water in radiators and the drawing of 'sanitary water, the "long" loop 16 of this installation, fitted with radiators 17, being mounted in parallel on the loop 14 and the tilting of one of these two loops to the other being automatically controlled by a three-way valve tracks 18.
  • the temperature of the water contained in the tank is cold, that is to say lower than the setpoint to which the operating circuit 8 is controlled.
  • This circuit is therefore excited, which has the effect to simultaneously drive the two pumps 11 and 15 by placing the valve 18 in its position corresponding to the "drawing", that is to say the communication of the "short loop" 14 with the exchanger 12 of the boiler.
  • the drive of the pump 15 has the effect of igniting the burner 19 of the boiler 13, which heats the water in the loop 14 as well as the exchanger 10.
  • the driving of the pump 11 has the effect of circulating the water in the closed circuit comprising in series the tube 9 (and therefore said pump 11 and the secondary 102 of the exchanger 10), the bottom portion of the tank 1 and the downstream section of tube 2, that is to say that between point P and the end of said tube, opening into the balloon, the word "downstream" being to be considered with respect to the direction of admission of cold water into the tank in accordance with a drawing according to FIG. 2 as described below.
  • the water in question is drawn off in the coldest bottom zone of the tank 1, then it is reheated in the exchanger 10 and thus reintroduced reheated in the tank from the downstream end of the tube 9.
  • the two operations indicated corresponding respectively to drawing hot water and to reheating the water in the tank, can be perfectly combined, the supply of cold water intended to compensate for the hot water drawn then being distributed between the two tubes. 2 and 9 which are mounted in parallel from point P, with a relative proportion of the flows circulating in these two tubes which depends on the pressure of the cold water admitted, the flow of hot water withdrawn and the power of the pump.
  • the entire volume of cold water admitted into the tank 1 from the network 5 is forced to pass through the exchanger 10 by mounting on the "downstream section" of the tube 2 defined above, that is to say between the point P and the mouth of this tube in the balloon 1, a non-return member oriented so to make the circulation of water possible in said section only in the direction coming out of the balloon: this member has been shown in 21 in phantom in Figure 1.
  • This organ can be placed on the mouth of tube 2.
  • the downstream end of the tube 9 is advantageously arranged so that the water leaving through this end is distributed according to horizontal directions as shown by arrows G in Figure 1.
  • said end is plugged axially and horizontal slots 20 as radially visible in FIG. 3 are hollowed out radially in its side wall.
  • These slots 20 advantageously have a width 1 greater than their mutual spacing e , so as to reduce the speed of exit of the heating water: the respective values of these two dimensions are for example 2 and 1.5 mm for a diameter of tube 9 of the order of 15 to 18 mm.
  • a construction with horizontal slits can also be adopted with advantage at the end of the tube 2 which opens into the balloon: this is what is indicated by the arrows F in FIGS. 1 and 2.
  • the relationship between the lengths and spacings of the slits is generally reversed with respect to that explained above.
  • the number of tubes serving the water balloon is reduced from four to three, which likewise reduces the number of watertight crossings of the wall (generally lower) of said balloon by said tubes, - the balloon does not have the usual coil, -
  • the overall thermal efficiency of the installation is excellent because it is possible to choose a construction with very high thermal efficiency for the heat exchanger, this efficiency being significantly higher than that of the heat exchange achieved between the water d 'a tank and the water circulating in a coil submerged in this tank: this is how, if we consider a hot water distribution system comprising a tank and a boiler whose thermal power is around 22 kW, it is possible to recover a thermal power of around 15 kW with the solution recommended above -corresponding to a flow of heating water between 500 and 800 1 / h when the pump 11 is excited, while it is difficult to recover more than 7 kW with the constructions previously proposed.

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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)
  • Water Supply & Treatment (AREA)
  • Heat-Pump Type And Storage Water Heaters (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Steam Or Hot-Water Central Heating Systems (AREA)
  • Toys (AREA)
  • Devices For Medical Bathing And Washing (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Cultivation Of Seaweed (AREA)
  • Domestic Hot-Water Supply Systems And Details Of Heating Systems (AREA)
  • Thermotherapy And Cooling Therapy Devices (AREA)
EP90401411A 1989-05-29 1990-05-28 Warmwasserspeicher und mit einem solchen Speicher ausgestattete Anlage Expired - Lifetime EP0403326B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT90401411T ATE91335T1 (de) 1989-05-29 1990-05-28 Warmwasserspeicher und mit einem solchen speicher ausgestattete anlage.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8907002 1989-05-29
FR8907002A FR2647537B1 (fr) 1989-05-29 1989-05-29 Perfectionnements aux ballons d'eau chaude et aux installations equipees de tels ballons

Publications (2)

Publication Number Publication Date
EP0403326A1 true EP0403326A1 (de) 1990-12-19
EP0403326B1 EP0403326B1 (de) 1993-07-07

Family

ID=9382091

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90401411A Expired - Lifetime EP0403326B1 (de) 1989-05-29 1990-05-28 Warmwasserspeicher und mit einem solchen Speicher ausgestattete Anlage

Country Status (14)

Country Link
EP (1) EP0403326B1 (de)
JP (1) JPH0355461A (de)
KR (1) KR960004846B1 (de)
AT (1) ATE91335T1 (de)
AU (1) AU635027B2 (de)
BR (1) BR9002512A (de)
CA (1) CA2017685A1 (de)
DE (1) DE69002131T2 (de)
ES (1) ES2042236T3 (de)
FR (1) FR2647537B1 (de)
MA (1) MA21855A1 (de)
PT (1) PT94172A (de)
TN (1) TNSN90071A1 (de)
ZA (1) ZA904105B (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0452259A2 (de) * 1990-04-02 1991-10-16 Domotec Ag Vorrichtung zur Erzeugung von warmem Brauchwasser und Verfahren zum Betrieb der Vorrichtung
AT411100B (de) * 2001-03-19 2003-09-25 Vaillant Gmbh Wasserheizanlage

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100458924B1 (ko) * 2001-03-16 2004-12-03 지충현 가스 보일러의 온수 탱크 장치
JP2008128508A (ja) * 2006-11-17 2008-06-05 Toshiba Electric Appliance Co Ltd 給湯装置

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2201628A1 (de) * 1972-01-14 1973-07-19 Ctc Gmbh Temperaturgesteuerte warmwasserbereitungsanlage
DE2729718A1 (de) * 1976-07-12 1978-01-19 Chaffoteaux Et Maury Anlage zur warmwassererzeugung zum abzapfen
DE3312089A1 (de) * 1983-04-02 1983-09-15 Fritz Dipl.-Ing. 5170 Jülich Camphausen Warmwasserspeicherbehaelter zur aufladung durch sonnenkollektoren
DD239844A1 (de) * 1985-08-01 1986-10-08 Erfurt Wohnungsbau Schaltung zur optimalen nutzung von anfallenergie fuer die warmwasserbereitung

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2201628A1 (de) * 1972-01-14 1973-07-19 Ctc Gmbh Temperaturgesteuerte warmwasserbereitungsanlage
DE2729718A1 (de) * 1976-07-12 1978-01-19 Chaffoteaux Et Maury Anlage zur warmwassererzeugung zum abzapfen
DE3312089A1 (de) * 1983-04-02 1983-09-15 Fritz Dipl.-Ing. 5170 Jülich Camphausen Warmwasserspeicherbehaelter zur aufladung durch sonnenkollektoren
DD239844A1 (de) * 1985-08-01 1986-10-08 Erfurt Wohnungsbau Schaltung zur optimalen nutzung von anfallenergie fuer die warmwasserbereitung

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0452259A2 (de) * 1990-04-02 1991-10-16 Domotec Ag Vorrichtung zur Erzeugung von warmem Brauchwasser und Verfahren zum Betrieb der Vorrichtung
EP0452259A3 (en) * 1990-04-02 1991-10-23 Domotec Ag Installation for producing sanitary hot water and method of working the installation
AT411100B (de) * 2001-03-19 2003-09-25 Vaillant Gmbh Wasserheizanlage

Also Published As

Publication number Publication date
DE69002131T2 (de) 1994-01-13
ES2042236T3 (es) 1993-12-01
BR9002512A (pt) 1991-08-13
ZA904105B (en) 1991-07-31
TNSN90071A1 (fr) 1991-03-05
PT94172A (pt) 1991-11-29
FR2647537B1 (fr) 1995-04-14
KR900018615A (ko) 1990-12-22
ATE91335T1 (de) 1993-07-15
AU635027B2 (en) 1993-03-11
KR960004846B1 (ko) 1996-04-16
EP0403326B1 (de) 1993-07-07
JPH0355461A (ja) 1991-03-11
FR2647537A1 (fr) 1990-11-30
DE69002131D1 (de) 1993-08-12
MA21855A1 (fr) 1990-12-31
CA2017685A1 (en) 1990-11-29
AU5597090A (en) 1990-11-29

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