EP0320678A2 - Appareil pour préparation et accumulation d'eau sanitaire - Google Patents

Appareil pour préparation et accumulation d'eau sanitaire Download PDF

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Publication number
EP0320678A2
EP0320678A2 EP88119647A EP88119647A EP0320678A2 EP 0320678 A2 EP0320678 A2 EP 0320678A2 EP 88119647 A EP88119647 A EP 88119647A EP 88119647 A EP88119647 A EP 88119647A EP 0320678 A2 EP0320678 A2 EP 0320678A2
Authority
EP
European Patent Office
Prior art keywords
container
heat exchanger
connection
volume
hot 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.)
Withdrawn
Application number
EP88119647A
Other languages
German (de)
English (en)
Other versions
EP0320678A3 (fr
Inventor
Hans Dr. Viessmann
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP0320678A2 publication Critical patent/EP0320678A2/fr
Publication of EP0320678A3 publication Critical patent/EP0320678A3/fr
Withdrawn legal-status Critical Current

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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
    • F24D3/00—Hot-water central heating systems
    • F24D3/08—Hot-water central heating systems in combination with systems for domestic hot-water supply
    • F24D3/082—Hot water storage tanks specially adapted therefor

Definitions

  • the invention relates to a device for hot water preparation and storage according to the preamble of the main claim.
  • a device of the type mentioned is known from DE-U - 78 29 552.
  • the riser pipe placed on the bell-shaped shield is connected to the bell interior.
  • the heated process water in this known device shielded from the shield against the cold water layered above it, rises immediately upwards in the riser pipe and is stratified in the form of a hot water cushion in the upper area, which hot water stratification essentially depends on the location of the mouth of the riser pipe.
  • This previously known device works as described, but has various disadvantages and cannot be used without further ado if the storage or water heater has a relatively small total volume, for example of only max. 20 ltr. Should be used.
  • the hot domestic water can theoretically only reach the upper area of the tank from there, but the lower hot water limit only moves down very slowly, if at all, because the hot water plug located above the mouth of the riser pipe prevents hot water from flowing in quickly.
  • the volume ratios of container and shield are in an unfavorable Ver Relationship to each other, that is, the volume enclosed by the shield is relatively small in relation to the container volume, and finally the cold water flowing in from the bottom when hot water is withdrawn reaches the heat exchanger or the shield directly. In a storage container with a relatively large holding volume, these disadvantages are not too serious, but they make themselves felt in small storage tanks with a max. 20 ltr. Content quite noticeable.
  • the invention is based on the domestic water heater or storage of the generic type, the task of improving it, in particular for use as a small storage tank, in such a way that, with a correspondingly limited storage effect, it can also be used to a certain extent as a water heater, with the proviso that to ensure that the hot water generated by the heat exchanger quickly in the entire upper half of the container and the incoming cold water can not get directly to the heat exchanger and that it should also be ensured for a largely exact flow along the heat exchanger.
  • This design of the device according to the invention thus differs from the known essentially by a different volume ratio between the container volume and the shielding volume, by the riser pipe provided with openings and by the sleeve which is used in the free space of the heat exchanger, preferably closed at the top and open at the bottom, and which ensures exact flow guidance guaranteed within the device. Due to the above-mentioned and changed volume ratio, there is a larger, faster heatable thing, especially for the continuous operation with larger hot water withdrawal servo lumen are available, whereby the sleeve ensures that the hot water to be heated and flowing in from below must pass through the pipe sections of the heat exchanger.
  • the total charging of the container with hot water is accelerated through the openings in the riser pipe, since the hot water rising in the riser pipe can leave it not only through the upper mouth, but also through the side openings during the passage of the riser pipe, which means that the lower one The boundary of the hot water layer that forms above moves down faster.
  • the shield has a relatively large volume in relation to the container volume, a correspondingly large transfer area or a correspondingly large heat exchanger can also be accommodated within the shield, it being advantageously possible to design the heat exchanger in the form of a double helix without the Possibility is cut to accommodate the aforementioned sleeve, which ensures an exact flow guidance.
  • the inner coil of the heat exchanger is provided with the heating flow connection and the outer coil with the heating return connection, which means that the hotter strand of the heat exchanger runs directly adjacent to the sleeve and, as a result, the water in the sleeve warms up or preheats better is accessible.
  • One or more small holes can be provided in the upper closure of the sleeve, which are preferably arranged in the peripheral edge region of the closure.
  • these holes are dimensioned with regard to the number and cross-sectional size such that hot water generated in the sleeve can slowly flow upward out of the sleeve and into the much faster ascending flow of the hot water generated by the heat exchanger.
  • the heating flow and the heating return connection of the heat exchanger are advantageous downward on the tank arranged outgoing, which results in simple installation conditions for the heat exchanger, since the wall of the shield does not have to be penetrated by the flow and return connections.
  • an advantageous further development is that the lower bottom of the container is releasably attached to the container.
  • thermal sensors are arranged on the container in the region of the upper and lower end of the shield, these thermal sensors connected in series in the opposite switching direction are connected to the circuit of the charge pump and also in that at the cold water connection Flow switch is arranged.
  • the device according to the invention is intended in particular as a small device, but there is nothing to prevent the special design of the "offal" from being used even in containers with a larger volume. Because of its smaller external dimensions, the device is particularly suitable as a small device as an additional device for small multi-level boilers to be installed on a wall, such as gas boilers in particular, where normally larger storage tanks cannot normally be installed. Due to the inevitably low weight of the device, it can also be easily used for wall installation.
  • the device consists of a container 3 with arranged in the lower inner region, provided with a charge pump 17, helically coiled tubular heat exchanger 1 and with a lower cold and upper hot water connection 8, 8 '.
  • a charge pump 17 helically coiled tubular heat exchanger 1
  • a lower cold and upper hot water connection 8, 8 ' Above the heat exchanger 1 there is an approximately bell-shaped shield 2, which is open at the bottom and surrounds the side of the heat exchanger 1 and whose side wall delimits a gap 22 with the container wall.
  • the shield 2 has an opening on its uppermost surface area, to which the riser pipe 10, which ends in the upper area of the container 3, is attached.
  • the volume of the shield 2 containing the heat exchanger 1 is approximately 30-50% of the volume of the container 3.
  • a sleeve 5, which is closed at the top and open at the bottom, is arranged in the free space 4 within the heat exchanger 1.
  • a few small holes 21 can be arranged in the closure 20 of the sleeve 5, as shown, in the edge region of the closure 20.
  • the cold water supply connection 8 is arranged under the lower opening 6 of the sleeve 5, the openings 7 of which are advantageously attached laterally so that the incoming cold water can spread over the entire lower floor 14 of the container 3.
  • this heat exchange surface can be enlarged further by forming the heat exchanger 1, as shown, in the form of a double spiral, the inner spiral 1 ' provided with the heating flow connection 2 and the outer coil 1 ⁇ of the heat exchanger 1 with the heating return connection 13 is.
  • Both connections advantageously go down through the bottom 14 of the container 3. This prevents penetration of the shield 2.
  • the bottom 14 can advantageously be designed as a releasable lower closure of the container 3 in the sense of FIG. 2, on which the cold water inlet connection 8 is then also arranged.
  • the riser pipe 10 attached upwards at a corresponding opening in the uppermost surface area of the shield 2 ends with its main mouth directly below the hot water connection 8 'and has in its wall 4 a plurality of outflow openings 11 which are arranged distributed over at least half of its upper half.

Landscapes

  • Engineering & Computer Science (AREA)
  • Water Supply & Treatment (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)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Instantaneous Water Boilers, Portable Hot-Water Supply Apparatuses, And Control Of Portable Hot-Water Supply Apparatuses (AREA)
EP88119647A 1987-12-12 1988-11-25 Appareil pour préparation et accumulation d'eau sanitaire Withdrawn EP0320678A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE8716433U DE8716433U1 (de) 1987-12-12 1987-12-12 Gerät zur Brauchwasserbereitung und -speicherung
DE8716433U 1987-12-12

Publications (2)

Publication Number Publication Date
EP0320678A2 true EP0320678A2 (fr) 1989-06-21
EP0320678A3 EP0320678A3 (fr) 1990-07-11

Family

ID=6815058

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88119647A Withdrawn EP0320678A3 (fr) 1987-12-12 1988-11-25 Appareil pour préparation et accumulation d'eau sanitaire

Country Status (3)

Country Link
EP (1) EP0320678A3 (fr)
DE (1) DE8716433U1 (fr)
PT (1) PT8009Y (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0567199A1 (fr) * 1992-04-23 1993-10-27 Metaal Vries B.V. Accumulateur d'eau chaude sanitaire
DE102004018034A1 (de) * 2004-04-14 2005-11-17 Stiebel Eltron Gmbh & Co. Kg Brauchwasserspeicher für Wärmepumpen
CN105202742A (zh) * 2015-11-02 2015-12-30 张斌 一种低能耗高效率的集成式水加热装置

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1679766B1 (de) * 1966-06-18 1972-05-31 Schmoele Metall R & G Brauchwasserbereiter zum Anschluss an eine Sammelheizungsanlage
BE829725A (fr) * 1974-06-14 1975-09-15 Appareil de preparation d'eau industrielle
FR2461206A1 (fr) * 1979-07-13 1981-01-30 Charot Ets Appareil pour la production d'eau chaude a energie solaire
DE8703576U1 (de) * 1987-03-10 1987-04-23 DMS - Kalt- und Warmwassertechnik Mühlena - Schöps - Tittel oHG, 2000 Oststeinbek Speicher-Brauchwasser-Erwärmer

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0567199A1 (fr) * 1992-04-23 1993-10-27 Metaal Vries B.V. Accumulateur d'eau chaude sanitaire
DE102004018034A1 (de) * 2004-04-14 2005-11-17 Stiebel Eltron Gmbh & Co. Kg Brauchwasserspeicher für Wärmepumpen
DE102004018034B4 (de) * 2004-04-14 2014-07-24 Stiebel Eltron Gmbh & Co. Kg Verfahren zur Einschaltung einer Wärmepumpe in Verbindung mit einem Brauchwasserspeicher für Wärmepumpen
CN105202742A (zh) * 2015-11-02 2015-12-30 张斌 一种低能耗高效率的集成式水加热装置
CN105202742B (zh) * 2015-11-02 2018-04-24 张斌 一种低能耗高效率的集成式水加热装置

Also Published As

Publication number Publication date
PT8009U (pt) 1989-09-14
EP0320678A3 (fr) 1990-07-11
DE8716433U1 (de) 1989-04-13
PT8009Y (pt) 1993-01-29

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