EP1133661B1 - Verfahren und anordnung zur heizwärme- und warmwasserbereitung - Google Patents
Verfahren und anordnung zur heizwärme- und warmwasserbereitung Download PDFInfo
- Publication number
- EP1133661B1 EP1133661B1 EP99971497A EP99971497A EP1133661B1 EP 1133661 B1 EP1133661 B1 EP 1133661B1 EP 99971497 A EP99971497 A EP 99971497A EP 99971497 A EP99971497 A EP 99971497A EP 1133661 B1 EP1133661 B1 EP 1133661B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- hot water
- heat generator
- storage
- water
- heat
- 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
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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
-
- 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
- F24D11/00—Central heating systems using heat accumulated in storage masses
Definitions
- the invention relates to a method and an arrangement for providing heating energy, especially for water heating using a gas powered Heat generator that heats the water of a storage tank to a preset temperature heats up, with the hot water from the storage tank via the heat generator Dispensing point directed and reheatable in the heat generator before the hot water delivery is.
- a circulating water heater is known from DE 195 10 876 A1, which is a heating system or supplies a memory. Hot water is drawn during operation the burner, cold water is added to the hot water in the storage tank and this water is reheated in the instantaneous water heater. It happens during a burner standstill to a hot water tap, the hot water flows out of the Storage tank with the usual storage tank temperature of approx. 60 ° C without reheating the heat exchanger of the heat generator to the tap. The expenditure on government this arrangement is relatively high.
- the invention has for its object a gas-operated wall-mounted device to provide heating energy, which is a significantly reduced Has construction volume.
- this object is achieved in that in the heat generator the hot water is heated to a higher than the preset temperature is and that the hot water is divided into several discharge lines and the Delivery temperature in at least one delivery line by adding cold water is lowered.
- the arrangement for hot water preparation according to the invention is characterized in that that the storage water in the heat generator to a higher than the preset Temperature can be heated between the heat generator and at least part of the Tap a thermostatically controlled mixing device is built in, the maximum Hot water temperature limited at the tap.
- the invention succeeds in the structural and operational advantages of known gas-powered combined hot water and heating systems and gas powered water heater to combine with hot water tanks and the size of the wall-mounted Reduce heat generators to the size of a shoe box.
- Arrangement is a small hot water tank on the usual Storage temperature between 40 and 65 ° C heated storage water removed and in a low-performing heat generator to a much higher one Reheated temperature.
- the water leaving the heat generator can on a relatively high temperature of, for example, 85-95 ° C. That from Hot water supplied to heat generators can be of such a high temperature that it immediately for hot laundry (95 ° C), but also for delicate laundry (40 ° C) without additional elaborate hot water mixtures can be used. It has to be for most Tap by adding unheated tap water to a "normal" hot water temperature be cooled. It is essential that a memory with reduced Storage volume and a heat generator with approximately half the heating output a normal bathtub are sufficient.
- the heat generator is usually of sufficient size to accommodate the heating energy to provide for a flat to the thermal insulation standard.
- the heat generator is also preferred by everyone at the Components not directly involved in heat generation objected to; so be for example, the circulation pump and the expansion tank on a suitable separate Place installed in the hot water system.
- the maintenance-independent components can be in inaccessible places to be ordered.
- the accommodation is particularly space-saving and not very annoying of expansion vessels, storage vessels or water pumps among the free Clear a built-in bathtub, in otherwise unused kitchen fittings or in Sloping ceilings.
- the heat generator itself, with a gas fitting in a housing, a burner arrangement (preferably an injector burner arrangement), a mixing chamber, one combustion chamber, one between the mixing chamber and the combustion chamber arranged heat exchanger are then arranged as a miniature device on one easily accessible place installed. Further space requirements are reduced through optimization of combustion chambers, heat exchangers, injector burners and / or gas fittings possible in the gas-powered heat generator.
- 40-60% of the are in the memory projected maximum hot water demand, and the performance of the Heat generator is dimensioned so that it covers the remaining maximum Residual load is sufficient.
- Fig. 1 shows a schematic diagram with the essentials Components of a system for providing heating energy.
- This system is a combined one Hot water and heating system, consisting of an arrangement A for water heating and an arrangement coupled with it B for space heat supply.
- the invention is particular realized in arrangement A for water heating.
- the arrangement A has a hot water generator 1, one Hot water tank 2, a connecting line 3 between a hot water outlet of the memory 2 and an input connection 11 of the heat generator 1, further one with an output connection 12 of the heat generator connected hot water pipe 4, a check valve connected to line 4 5, one of these downstream internal circulation and Storage pump 6 and a mixing device 7, the Hot water from line 4 and cold water from a cold water line 8 for setting the hot water temperature in a tap line 9 are supplied.
- the cold water pipe 8 is the usual cold water safety group 20 involved.
- the thermal coupling between the heating circuit B and the Water heating arrangement A takes place in the embodiment 1 via an integrated in the memory 2 Heat exchanger assembly 21.
- the heated by heat exchange Water is supplied by a heating circuit pump arranged in the heating flow circulates, flows through a check valve 23 and passes through a return 24 with a connected expansion vessel 25 back into the heat exchanger 21 of the memory 2 on.
- Hot water tank 2 via line 3 hot water at the usual storage temperature between 40 and 65 ° C taken and in the heat generator 1 before delivery to the taps 5 heated to a higher temperature, d. H. reheated. there the heat generator 1 is preferably operated at full load, so that the heat generator 1 leaving water a relative has a high temperature of, for example, 85 to 95 ° C.
- unheated tap water cold water
- the hot water from line 4 a "normal" hot water temperature cooled down, so that excessive hot water temperatures at the hot water taps be avoided.
- Reheating the water of the Hot water tank 2 creates the prerequisite for that the storage volume of the storage 2 also for supply a conventional bathtub can be kept relatively small.
- the combination of storage and the storage water reheating Heat generator 1 allows the use of a relative underpowered heat generator, which is basically only on half of the power used in the system needs to be.
- the output 12 of the heat generator is via the circulation storage charging pump 6 with an input terminal of the Memory 2 connected to the heat generator circuit to close the memory 2.
- the heat generator 1 takes care of an electrical control device, not shown in the drawing for maintaining the preset DHW temperature within a specified temperature range.
- This heat generator circuit 1, 4, 6, 2, 3 forms the primary circuit for heating circuit B.
- the actual heat generator is used for hot water extraction used for reheating.
- This arrangement has the considerable Advantage that the coverage of hot water needs too a large part from the hot water tank. Accordingly, performance and size of the heat generator can be considerable be reduced.
- a shoe box-sized Heat generator can also be combined with one small volume storage of hot water requirements for a full bath to be covered. Because of the small size, a Awarded heat generator 1 of the type used in the invention as a wall unit.
- the arrangement for hot water preparation according to FIG. 1 is 2 in one for one small apartment suitable installation type in the bathroom and in represented a kitchen unit.
- the memory 2 can in the arrangement according to the invention a comparatively small volume to have. This is because what is in memory 2 Hot water to a much higher temperature reheated and in the mixing device 7 to the target temperature is cooled down at the tap.
- the hot water tank 2 can be due to its small size accordingly the system representation in Fig. 2 below a Bathtub can be integrated into the tub wall.
- modular and structurally separate from the heat generator and storage Components may include the expansion tank 25 and at least one of the two circulation pumps 6 and 22 in free spaces be installed inside the bathtub wall. This Components are designed for installation in closed rooms particularly suitable because it is largely maintenance-independent are.
- Storage 2 expansion tanks 25 and pumps 6 or 22 can also be at another suitable location within a private or commercial space in built-in cupboards in a kitchen.
- the arrangement according to FIG. 1 provides for the mixing device 7 for lowering the hot water temperature to a body-appropriate temperature level.
- the heat generator 1 Hot water generated can be at the high evaporation temperature level if necessary, directly and via a separate connection line a separate consumer, e.g. B. a washing machine 31 or a dishwasher 32 are supplied. insofar are also possible uses by the invention extended.
- FIGS. 3 to 6 are, in particular, application-related Modifications of the arrangement shown in FIG. 1.
- a distribution device 71 is arranged in the cold water supply line 8.
- a second Distribution device 14 is the hot water inlet 11 of the heat generator 1 upstream and enables volume control between the reheated water in the outlet pipe 4 of the heat generator 1 and the memory 2 removed Hot water.
- FIG. 4 shows an arrangement similar to FIGS. 1 and 3 with three separate hot water tap lines 9A, 9B and 9C, whose temperatures via three separate mixing devices 7A, 7B and 7C adjusted at different temperature levels can be. Otherwise, the circuit corresponds to 4 of that of FIG. 3rd
- FIG. 5 is an arrangement similar to that shown in FIG Fig. 1 shown, in which the memory as a two-chamber hot water tank 2 'is formed.
- This two-chamber version of the memory 2 ' enables regulation of the two chamber volumes in the inner chamber 2I and in the outer chamber 2A to different temperature levels.
- the inner chamber 2I is kept at a higher temperature, the outer chamber 2A also functions as a temperature buffer can take over.
- a mixing valve 15 mixes the Partial flows from chambers 2I and 2A by the heat generator 1 can be reheated.
- a distribution valve 16 distributes the in the amount of hot water returned from the line 2 ' 4 to the two storage chambers 2I and 2A.
- FIG. 6 shows a circuit arrangement modified compared to FIG. 1, in which a heat exchanger 27 of the internal Circulation / storage charging pump 6 is connected downstream.
- a additional distribution device 17 decouples the hot water tank 2 from the room heat supply via the heating circuit.
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)
- Domestic Hot-Water Supply Systems And Details Of Heating Systems (AREA)
- Sorption Type Refrigeration Machines (AREA)
Description
- Fig. 1
- ein schematisches Schaltbild mit den wesentlichen Komponenten einer kombinierten Warmwasser- und Heizanlage, die ein Ausführungsbeispiel der erfindungsgemäßen Anordnung zur Warmwasserbereitung enthält;
- Fig. 2
- eine schematische Systemdarstellung einer Heizwärmeversorgung mit verschiedenen Zapfstellen, die von der in Fig. 1 dargestellten Anordnung zur Warmwasserbereitung versorgt werden;
- Fig. 3
- ein Schaltbild der kombinierten Warmwasser-und Heizanlage ähnlich Fig. 1 mit abgewandelter Anordnung zur Warmwasserbereitung;
- Fig. 4
- ein Schaltbild der kombinierten Warmwasser- und Heizanlage ähnlich Fig. 1 mit mehreren Mischeinrichtungen für unterschiedliche Zapfstelten-Temperaturniveaus;
- Fig. 5
- ein Schaltbild einer kombinierten Warmwasser- und Heizanlage ähnlich Fig. 1 mit zwei getrennten Speichervolumen; und
- Fig. 6
- ein Schaltbild einer kombinierten Warmwasser- und Heizanlage ähnlich Fig. 1 mit einer zusätzlichen Verteileinrichtung zur Speicher-unabhängigen Raumwärmeversorgung.
Claims (11)
- Verfahren zur Heizwärmebereitstellung, insbesondere zur Warmwasserbereitung unter Verwendung eines gasbetriebenen Wärmeerzeugers, der das Wasser eines Speichers auf eine voreingestellte Temperatur aufheizt, wobei das Warmwasser aus dem Speicher über den Wärmeerzeuger zur Zapfstelle geleitet und in dem Wärmeerzeuger vor der Warmwasserabgabe nachheizbar ist,
dadurch gekennzeichnet, daß im Wärmeerzeuger das Warmwasser auf eine höhere Temperatur als die voreingestellte Temperatur aufgeheizt wird, daß das Warmwasser auf mehrere Abgabeleitungen aufgeteilt und die Abgabetemperatur in mindestens einer Abgabeleitung durch Zumischen von Kaltwasser abgesenkt wird. - Verfahren nach Anspruch 1,
dadurch gekennzeichnet, daß das auf die höhere Temperatur aufgeheizte Wasser zwischen dem Wärmeerzeuger und der Zapfstelle mit unbeheiztem Leitungswasser gemischt und entsprechend dem Mischungsverhältnis auf eine Zwischentemperatur abgekühlt wird, wobei der Warmeerzeuger im wesentlichen im Vollastbereich betrieben und das Mischungsverhältnis in Abhängigkeit vom Wärmebedarf geregelt wird. - Verfahren nach Anspruch 1 oder 2,
dadurch gekennzeichnet, daß im Speicher 40-60 % der projektierten maximalen Warmwasserbedarfsmenge gespeichert und die Leistung des Wärmeerzeugers so bemessen wird, daß sie zur Deckung der maximalen Restlast ausreicht. - Verfahren nach einem der Ansprüche 1 bis 3,
dadurch gekennzeichnet, daß ein Heizkreis zur Raumwärmeversorgung mit dem Speicher-Warmwasser über einen Wärmetauscher thermisch gekoppelt wird. - Verfahren nach einem der Ansprüche 1 bis 4,
dadurch gekennzeichnet, daß ein Wärmetauscher für die Raumwärmeversorgung in den internen Zirkulationskreis zwischen Wärmeerzeuger und Wärmespeicher derart eingebunden wird, daß die Speicherwassertemperatur von der Raumwärmeversorgung entkoppelt ist. - Anordnung zur Warmwasserbereitung mit einem gasbetriebenen Wärmeerzeuger (1) und einem Warmwasserspeicher (2), wobei der Wärmeerzeuger mit dem Speicher gekoppelt ist und das Speicherwasser auf eine voreingesteltte Temperatur aufheizt, und wobei eine Warmwasser-Abgabeleitung (3, 4) aus dem Speicher (2) über den Wärmeerzeuger (1) zu Warmwasser-Zapfstellen geführt wird,
dadurch gekennzeichnet, daß das Speicherwasser im Wärmeerzeuger auf eine höhere, als die voreingestellte Temperatur aufheizbar ist und daß zwischen Wärmeerzeuger (1) und wenigstens einem Teil der Zapfstellen eine thermostatisch gesteuerte Mischvorrichtung (7; 7A, 7B, 7C) eingebaut ist, die die maximale Warmwassertemperatur an der Zapfstelle begrenzt. - Anordnung nach Anspruch 6,
dadurch gekennzeichnet, daß die Komponenten des Wärmeerzeugers (1) in einem raumsparenden Wandgehäuse untergebracht sind und der Speicher (2) und eventuelle Zusatzgeräte, wie Umwälzpumpe (6, 22) und Ausdehnungsgefäß (25) räumlich getrennt von der Montagestelle des Wandgehäuses angeordnet sind. - Anordnung nach einem der Ansprüche 6 bis 7,
dadurch gekennzeichnet, daß der Warmwasserspeicher (2) eine Kapazität von 40 - 60 % einer Badewannenfüllung hat und die Leistung des Wärmeerzeugers (1) in Anpassung an die Speicherauslegung zur Deckung der verbleibenden Restlast ausreicht. - Anordnung nach einem der Ansprüche 6 bis 8,
dadurch gekennzeichnet, daß eine Ausgangsleitung (4) des Wärmeerzeugers (1) in mehrere zu unterschiedlichen Zapfstellen führende parallele Leitungsstränge (9A, 9B, 9C) verzweigt ist und daß in mindestens einem der parallelen Leitungsstränge eine Mischeinrichtung (7A, 7B, 7C) eingebunden ist, in der das aus dem Wärmeerzeuger austretende Heizwasser mit Kaltwasser von einem Kaltwasseranschluß (8) mischbar ist. - Anordnung nach Anspruch 9,
dadurch gekennzeichnet, daß die Mischeinrichtung (7A, 7B, 7C) in den parallelen Ausgangsleitungssträngen (9A, 9B und 9C) zur Einstellung unterschiedlicher Zapfstellen-Warmwassertemperaturen getrennt regelbar sind. - Anordnung nach einem der Ansprüche 6 bis 10,
dadurch gekennzeichnet, daß als Warmwasserspeicher ein Mehrkammerspeicher (2') vorgesehen ist, wobei Warmwasser-Ausgangsanschlüsse der Speicherkammern (2I, 2A) über eine Mischeinrichtung (15) mit einem gemeinsamen Eingangsanschluß (11) des Wärmeerzeugers (1) und Warmwasser-Eingangsanschlüsse des Speichers (2') über eine Verteilereinrichtung (16) mit einem Ausgangsanschluß (12) des Wärmeerzeugers (1) gekoppelt sind.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19850714A DE19850714A1 (de) | 1998-11-03 | 1998-11-03 | Verfahren und Anordnung zur Heizwärme- und Warmwasserbereitung |
DE19850714 | 1998-11-03 | ||
PCT/EP1999/008087 WO2000026581A1 (de) | 1998-11-03 | 1999-10-26 | Verfahren und anordnung zur heizwärme- und warmwasserbereitung |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1133661A1 EP1133661A1 (de) | 2001-09-19 |
EP1133661B1 true EP1133661B1 (de) | 2002-08-28 |
Family
ID=7886582
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP99971497A Expired - Lifetime EP1133661B1 (de) | 1998-11-03 | 1999-10-26 | Verfahren und anordnung zur heizwärme- und warmwasserbereitung |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP1133661B1 (de) |
AT (1) | ATE223019T1 (de) |
AU (1) | AU1154600A (de) |
DE (2) | DE19850714A1 (de) |
ES (1) | ES2182597T3 (de) |
WO (1) | WO2000026581A1 (de) |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3140618A1 (en) * | 1980-03-26 | 1982-05-06 | B Duane | Solar/gas'heater |
AT389584B (de) * | 1988-04-15 | 1989-12-27 | Vaillant Gmbh | Heizungsanlage |
DE19510876A1 (de) * | 1994-03-24 | 1995-09-28 | Vaillant Joh Gmbh & Co | Umlaufwasserheizer zur Bereitung von Brauch- und Heizwasser |
-
1998
- 1998-11-03 DE DE19850714A patent/DE19850714A1/de not_active Withdrawn
-
1999
- 1999-10-26 AT AT99971497T patent/ATE223019T1/de not_active IP Right Cessation
- 1999-10-26 ES ES99971497T patent/ES2182597T3/es not_active Expired - Lifetime
- 1999-10-26 EP EP99971497A patent/EP1133661B1/de not_active Expired - Lifetime
- 1999-10-26 DE DE59902493T patent/DE59902493D1/de not_active Expired - Lifetime
- 1999-10-26 AU AU11546/00A patent/AU1154600A/en not_active Abandoned
- 1999-10-26 WO PCT/EP1999/008087 patent/WO2000026581A1/de active IP Right Grant
Also Published As
Publication number | Publication date |
---|---|
DE19850714A1 (de) | 2000-05-04 |
DE59902493D1 (de) | 2002-10-02 |
AU1154600A (en) | 2000-05-22 |
EP1133661A1 (de) | 2001-09-19 |
ES2182597T3 (es) | 2003-03-01 |
WO2000026581A1 (de) | 2000-05-11 |
ATE223019T1 (de) | 2002-09-15 |
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