EP1133661A1 - Verfahren und anordnung zur heizwärme- und warmwasserbereitung - Google Patents
Verfahren und anordnung zur heizwärme- und warmwasserbereitungInfo
- Publication number
- EP1133661A1 EP1133661A1 EP99971497A EP99971497A EP1133661A1 EP 1133661 A1 EP1133661 A1 EP 1133661A1 EP 99971497 A EP99971497 A EP 99971497A EP 99971497 A EP99971497 A EP 99971497A EP 1133661 A1 EP1133661 A1 EP 1133661A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- hot water
- heat generator
- water
- heat
- temperature
- 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
Links
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 heat, in particular for hot water preparation using a gas-operated heat generator which heats the water of a storage tank to a preset temperature.
- Combined hot water and heating systems are often used for space heating and hot water preparation.
- the hot water is prepared using the continuous process.
- the heating capacity of a heat generator working according to the continuous principle must be approx. 25 kW in order to heat cold water to a bathing temperature of approx. 40 ° C.
- Powerful heat generators have a considerable construction volume even if a water storage tank is no longer used, which is perceived as annoying in many small residential and commercial units. Gas-operated, wall-hung devices still have a considerably larger construction volume than electrically operated devices. The invention provides a remedy here.
- the invention has for its object to provide a gas-powered wall-hanging device for heating heat available, which has a significantly reduced volume.
- this object is achieved according to the invention in that the hot water is led from the store via the heat generator to the tap and is heated to a higher temperature in the heat generator before the hot water is dispensed.
- the arrangement according to the invention for hot water preparation is characterized in that a hot water discharge line is led from the storage via the heat generator to hot water taps and the storage water in the heat generator can be heated to a higher temperature.
- the heat generator is usually sufficiently large to provide the heating energy for a flat with new thermal protection standards.
- storage and heat generators are
- ERSATZBLA ⁇ RULE26 spatially separated from each other.
- the heat generator is preferably also objected to by all components not directly involved in heat generation;
- the circulation pump and the expansion tank are installed at a suitable separate location in the hot water system.
- the maintenance-independent components can be arranged in inaccessible places.
- the storage of expansion vessels, storage vessels or water pumps under the free spaces of a built-in bathtub, in otherwise unused kitchen fittings or in sloping ceilings is particularly space-saving and not very disturbing.
- the heat generator itself in which a gas fitting, a burner arrangement (preferably an injector burner arrangement), a mixing chamber, a combustion chamber, a burner plate arranged between the mixing chamber and the combustion chamber and a heat exchanger arranged in the combustion chamber are arranged in a housing, is then a miniature device installed in an easily accessible place. Further space requirements can be reduced by optimizing combustion chambers, heat exchangers, injector burners and / or gas fittings in the gas-powered heat generator.
- 40-60% of the projected maximum amount of hot water is stored in the memory, and the output of the heat generator is dimensioned such that it is sufficient to cover the remaining maximum residual load.
- a thermostatically controlled mixing device which limits the maximum hot water temperature at the tap, is preferably installed between the heat generator and at least part of the tap. This mixing device is particularly necessary because of the high water temperature at the outlet of the heat generator when there are normative requirements regarding the maximum water temperature at hot water taps.
- the hot water supplied by the water heater can be so high that it is immediately
- REPLACEMENT SHEET RULE 26 wash (95 ° C), but can also be used for delicates (40 ° C) without additional complex water temperature mixing circuits.
- the construction volume of the memory can be further reduced in that a storage medium of particularly high heat storage capacity, e.g. Paraffin, is used. Paraffin has about three times the heat storage capacity of water. If a special storage medium is used, a separate and closed additional heat exchanger circuit must be used.
- a storage medium of particularly high heat storage capacity e.g. Paraffin
- Paraffin has about three times the heat storage capacity of water. If a special storage medium is used, a separate and closed additional heat exchanger circuit must be used.
- FIG. 1 shows a schematic circuit diagram with the essential components of a combined hot water and heating system, which contains an exemplary embodiment of the inventive arrangement for hot water preparation
- FIG. 2 shows a schematic system representation of a heating supply with different tapping points which are supplied by the arrangement for heating water shown in FIG. 1;
- FIG. 3 is a circuit diagram of the combined hot water and heating system similar to Figure 1 with a modified arrangement for water heating.
- FIG. 4 shows a circuit diagram of the combined hot water and heating system similar to FIG. 1 with a plurality of mixing devices for different tap temperature levels; 5 shows a circuit diagram of a combined hot water and heating system similar to FIG. 1 with two separate storage volumes; and
- Fig. 6 is a circuit diagram of a combined hot water and heating system similar to Fig. 1 with an additional distribution device for storage-independent space heat supply.
- Fig. 1 shows a schematic circuit diagram with the essential components of a system for providing heating energy.
- This system is a combined hot water and heating system, consisting of an arrangement A for hot water preparation and an arrangement B coupled to this for space heating supply.
- the invention is particularly implemented in the arrangement A for hot water preparation.
- the arrangement A has a hot water generator 1, a hot water storage tank 2, a connecting line 3 between a hot water outlet of the storage tank 2 and an input connection 11 of the heat generator 1, further a hot water line 4 connected to an output connection 12 of the heat generator, and a non-return valve connected to the line 4 5, one of these downstream internal circulation and storage charging pump 6 and a mixing device 7, the hot water from the 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 usual cold water safety group 20 is integrated in the cold water line 8.
- the thermal coupling between the heating circuit B and the hot water preparation arrangement A takes place in the exemplary embodiment according to FIG. 1 via a heat exchanger arrangement 21 integrated in the store 2 Return 24 with connected expansion vessel 25 again in the heat exchanger 21 of the memory 2.
- hot water is withdrawn from the hot water tank 2 via the line 3 at the usual tank temperature between 40 and 65 ° C. and heated up to a higher temperature in the heat generator 1 before being delivered to the tap, ie reheated.
- the heat generator 1 is preferably operated at full load, so that the water leaving the heat generator 1 has a relatively high temperature of, for example, 85 to 95.degree.
- the output 12 of the heat generator is connected via the circulation accumulator charging pump 6 to an input connection of the accumulator 2 in order to close the heat generator circuit via the accumulator 2.
- the heat generator 1 uses an electrical control device (not shown in the drawing) to maintain the preset storage water temperature within a predetermined 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 reheating during hot water extraction.
- this arrangement has the considerable advantage that the hot water requirement is largely covered by the hot water tank. Accordingly, the performance and size of the heat generator can be reduced dramatically.
- a heat generator 1 of the type used according to the invention is excellently suitable as a wall unit.
- the arrangement for hot water preparation according to FIG. 1 is shown in the system representation according to FIG. 2 in an installation type suitable for a small apartment in the bathroom and in a kitchen unit.
- the memory 2 can have a comparatively small volume in the arrangement according to the invention. This is due to the fact that the hot water in the store 2 is reheated to a substantially higher temperature and is cooled down in the mixing device 7 to the desired temperature at the tap. Because of its small construction volume, the hot water tank 2 can be integrated into the tub wall below a bathtub in accordance with the system representation in FIG. 2.
- the expansion vessel 25 and at least one of the two circulation pumps 6 and 22 can also be installed in free spaces within the bath wall as modular components that are structurally separate from the heat generator and storage.
- FIGS. 3 to 6 show, in particular, application-related modifications of the arrangement according to FIG. 1.
- the individual components correspond to those according to FIG. 1, they have the same reference symbols.
- FIG. 3 differs from the arrangement according to FIG. 1 on the one hand in that, instead of the mixing device 7 arranged in the hot water line 4, a distribution device 71 is arranged in the cold water supply line 8.
- a distribution device 71 is arranged in the cold water supply line 8.
- Distribution device 14 is connected upstream of the hot water inlet 11 of the heat generator 1 and enables volume control between the reheated water in the outlet line 4 of the heat generator 1 and the hot water withdrawn from the store 2.
- FIG. 4 shows an arrangement similar to FIGS. 1 and 3 with three separate hot water tap lines 9A, 9B and 9C, the temperatures of which can be regulated at three different mixing devices 7A, 7B and 7C at different temperature levels. Otherwise, the circuit according to FIG. 4 corresponds to that according to FIG. 3.
- FIG. 5 shows an arrangement similar to that according to FIG. 1, in which the store is designed as a two-chamber hot water store 2 1 .
- This two-chamber design of the store 2 ' enables the two chamber volumes in the inner chamber 21 and in the outer chamber 2A to be regulated to different temperature levels.
- the inner chamber 21 is preferably kept at a higher temperature, the outer chamber 2A also being able to take on the function of a temperature buffer.
- a mixing valve 15 mixes the partial flows from the chambers 21 and 2A, which are reheated by the heat generator 1.
- a distribution valve 16 distributes the amount of hot water returned to the store 2 'from the line 4 to the two storage chambers 21 and 2A.
- FIG. 6 shows a circuit arrangement modified compared to FIG. 1, in which a heat exchanger 27 of the internal one
- Circulation / storage charging pump 6 is connected downstream.
- An additional distribution device 17 decouples the hot water tank 2 from the room heat supply via the heating circuit.
- a self-contained storage circuit comprising the heat generator 1, the storage charging pump 6, the storage 2 and the connecting line 3, can be provided, in which a flow medium of considerable heat capacity, for example paraffin, is contained as the storage medium.
- a flow medium of considerable heat capacity for example paraffin
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
Claims
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 true EP1133661A1 (de) | 2001-09-19 |
EP1133661B1 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
Non-Patent Citations (1)
Title |
---|
See references of WO0026581A1 * |
Also Published As
Publication number | Publication date |
---|---|
DE19850714A1 (de) | 2000-05-04 |
DE59902493D1 (de) | 2002-10-02 |
AU1154600A (en) | 2000-05-22 |
EP1133661B1 (de) | 2002-08-28 |
ES2182597T3 (es) | 2003-03-01 |
WO2000026581A1 (de) | 2000-05-11 |
ATE223019T1 (de) | 2002-09-15 |
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