AT502493B1 - Device for recovering heat from waste water of sewer pipe of e.g. household application, has switch valve switching outlet of sewer pipe, when temperature of temperature sensor exceeds temperature at storage tank around preset difference - Google Patents
Device for recovering heat from waste water of sewer pipe of e.g. household application, has switch valve switching outlet of sewer pipe, when temperature of temperature sensor exceeds temperature at storage tank around preset difference Download PDFInfo
- Publication number
- AT502493B1 AT502493B1 AT0007606A AT762006A AT502493B1 AT 502493 B1 AT502493 B1 AT 502493B1 AT 0007606 A AT0007606 A AT 0007606A AT 762006 A AT762006 A AT 762006A AT 502493 B1 AT502493 B1 AT 502493B1
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- Austria
- Prior art keywords
- temperature
- waste water
- temperature sensor
- storage tank
- line
- Prior art date
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
- F28D7/02—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being helically coiled
- F28D7/024—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being helically coiled the conduits of only one medium being helically coiled tubes, the coils having a cylindrical configuration
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- 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
- F24D17/0005—Domestic hot-water supply systems using recuperation of waste heat
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
- F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
- F28D1/0206—Heat exchangers immersed in a large body of liquid
- F28D1/0213—Heat exchangers immersed in a large body of liquid for heating or cooling a liquid in a tank
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
- F28D21/0001—Recuperative heat exchangers
- F28D21/0012—Recuperative heat exchangers the heat being recuperated from waste water or from condensates
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/18—Domestic hot-water supply systems using recuperated or waste heat
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/56—Heat recovery units
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Heat Treatment Of Water, Waste Water Or Sewage (AREA)
- Heat-Pump Type And Storage Water Heaters (AREA)
Abstract
Description
2 AT 502 493 B12 AT 502 493 B1
Die Erfindung bezieht sich auf eine Vorrichtung zur Wärmerückgewinnung aus Abwasser sowie ein Verfahren zum Betreiben dieser Vorrichtung.The invention relates to a device for heat recovery from wastewater and a method for operating this device.
Das Abwasser beispielsweise einer Dusche, Badewanne, Spülmaschine oder Waschmaschine 5 in Haushalten verfügt über wesentliche Restwärme, die üblicherweise ungenutzt in die Kanalisation geleitet wird.The wastewater, for example, a shower, bath, dishwasher or washing machine 5 in households has significant residual heat, which is usually passed unused into the sewer.
Aus dem Stand der Technik sind Gegenstromwärmetäuscher bekannt, bei denen zuströmendes Frischwasser Wärme von diesem Abwasser aufnimmt. Dies setzt jedoch voraus, dass gleichzei-io tig Frischwasser gezapft wird, wenn das warme Abwasser anfällt.Countercurrent heat exchangers are known from the prior art, in which inflowing fresh water absorbs heat from this wastewater. However, this presupposes that fresh water is tapped at the same time when the warm wastewater is produced.
Die EP 532 910 A1 zeigt eine Vorrichtung zur Wärmerückgewinnung von Abwasser auf Frischwasser, bei der zuströmendes Abwasser oberhalb einer vorgegebenen Grenztemperatur-einem Speicherbehälter zugeführt und unterhalb dieser vorgegebenen Grenztemperatur am Speicher-15 behälter vorbeigeführt wird. Innerhalb des Speicherbehälters befindet sich eine Rohrschlange zur Vorwärmung von Frischwasser.EP 532 910 A1 shows a device for heat recovery of wastewater to fresh water, supplied to the inflowing wastewater above a predetermined limit temperature-a storage tank and is passed below this predetermined limit temperature at the storage tank 15. Within the storage tank is a coil for preheating fresh water.
Aus der DE 26 25 157 A1 ist eine Vorrichtung zur Wärmerückgewinnung von Abwasser auf Frischwasser, bei der das Abwasser stets in einen Sammelbehälter mit Absperrschieber im 20 untenliegenden Auslauf des Sammelbehälters eingeleitet wird. Im Sammelbehälter in der Nähe des Zulaufs befindet sich ein Temperaturfühler. Überschreitet die mittels dieses Temperaturfühlers gemessene Temperatur einen vorgegebenen Grenzwert, so schließt der Absperrschieber; der Sammelbehälter wird vom einströmenden Abwasser befüllt. Wärme kann vom Abwasser auf Frischwasser, das einen im Speicherbehälter positionierten Wärmetauscher durchströmt, über-25 tragen werden. Unterschreitet die mittels eines Temperatursensors im Sammelbehälter gemessene Temperatur einen vorgegebenen zweiten Grenzwert, so öffnet der Absperrschieber. Bei geöffnetem Absperrschieber kann keine Wärme vom Abwasser rückgewonnen werden.From DE 26 25 157 A1 discloses a device for heat recovery of wastewater to fresh water, in which the wastewater is always introduced into a sump with gate valve in the bottom 20 outlet of the sump. A temperature sensor is located in the sump near the inlet. If the temperature measured by means of this temperature sensor exceeds a predetermined limit, the gate valve closes; the collecting tank is filled by the inflowing wastewater. Heat may be carried over from the waste water to fresh water passing through a heat exchanger positioned in the storage tank. If the temperature measured in the collecting container by means of a temperature sensor falls below a predetermined second limit value, then the gate valve opens. When the gate valve is open, no heat can be recovered from the wastewater.
Der Wärmetauscher im Sammelbehälter ist mit einem Speicherbehälter verbunden. Ist die 30 Temperatur im Speicherbehälter gleich oder wenig kleiner als die Temperatur im Sammelbehälter, so kann keine Wärme vom Abwasser auf den Speicherbehälter übertragen werden; daher öffnet in diesem Fall der Absperrschieber.The heat exchanger in the sump is connected to a storage tank. If the temperature in the storage tank is equal to or slightly less than the temperature in the collecting tank, no heat can be transferred from the waste water to the storage tank; therefore opens in this case, the gate valve.
Die DE 24 15 877 A1 zeigt eine Vorrichtung zur Wärmerückgewinnung von Abwasser auf 35 Frischwasser, bei der das Abwasser dann in einen Sammelbehälter geleitet wird, wenn dessen Temperatur einen vorgegebenen Grenzwert überschreitet; kaltes Abwasser wird mittels eines Umschaltventils am Sammelbehälter vorbei geleitet. Um den Sammelbehälter herum, ist ein Frischwasser-Wärmeaustauscher angeordnet. 40 Die DE 43 37 744 A1 offenbart einen Abwassersammelbehälter mit einem Wärmetauscher zur Erhitzung eines Kaltwasserzulaufs. Das Abwasser wird stets, d.h. egal ob kalt oder warm, dem Sammelbehälter zugeführt.DE 24 15 877 A1 shows a device for heat recovery of wastewater to 35 fresh water, in which the wastewater is then passed into a collection container when its temperature exceeds a predetermined limit; cold wastewater is conducted by means of a switching valve to the collection past. Around the sump, a fresh water heat exchanger is arranged. DE 43 37 744 A1 discloses a waste water collecting tank with a heat exchanger for heating a cold water inlet. The wastewater is always, i. whether cold or warm, fed to the sump.
Der Erfindung liegt die Aufgabe zugrunde, eine Vorrichtung zur Wärmerückgewinnung aus 45 Abwasser zu schaffen, bei der die thermische Energie des Abwassers gespeichert wird und bei Bedarf auf das Frischwasser übertragen wird.The invention has for its object to provide a device for heat recovery from 45 wastewater, in which the thermal energy of the wastewater is stored and is transferred to the fresh water when needed.
Erfindungsgemäß wird dies gemäß einer Vorrichtung zur Wärmerückgewinnung nach Anspruch 1 dadurch gelöst, dass das Abwasser zunächst in einen Speicherbehälter geleitet wird und dort 50 Wärme über einen Frischwasserwärmeaustauscher übertragen werden kann. Das Abwasser kann auch an dem Speicherbehälter vorbeigeleitet werden. Dies ist vor allem dann sinnvoll, wenn das Abwasser über eine relativ geringe Temperatur verfügt und somit durch das nachströmende Abwasser der Speicherbehälter nicht aufgeheizt, sondern vielmehr abgekühlt würde. In der Abwasserzufuhr befindet sich ein Temperatursensor, im Speicherbehälter ein zusätzli-55 eher Temperatursensor. Diese Sensoren werden für den Betrieb gemäß den Verfahrensansprü- Γ Γ 3 ΑΤ 502 493 Β1 chen benötigt.According to the invention this is achieved according to a device for heat recovery according to claim 1, characterized in that the waste water is first passed into a storage tank and there 50 heat can be transmitted via a fresh water heat exchanger. The waste water can also be conducted past the storage tank. This is especially useful if the wastewater has a relatively low temperature and thus not heated by the inflowing waste water of the storage tank, but rather would be cooled. There is a temperature sensor in the waste water supply and an additional temperature sensor in the storage tank. These sensors are required for operation in accordance with method claims 3 502 493.
Wird das Abwasser gemäß Anspruch 2 in den oberen Teil des Speicherbehälters eingeleitet und aus dem unteren Bereich des Speicherbehälters abgeführt, so kann sich im Speicherbehäl-5 ter eine Temperaturschichtung einstellen.If the wastewater according to claim 2 is introduced into the upper part of the storage container and discharged from the lower region of the storage container, a temperature stratification can occur in the storage container 5.
Ist der Frischwasserwärmeaustauscher gemäß den Merkmalen des abhängigen Anspruchs 3 durchströmbar, so kann in vorteilhafter Weise eine Temperaturschichtung im Speicherbehälter zur Frischwassererwärmung genutzt werden. 10Is the fresh water heat exchanger according to the features of the dependent claim 3 can be flowed through, it can be used in an advantageous manner, a temperature stratification in the storage tank for fresh water heating. 10
Gemäß den Merkmalen des abhängigen Anspruchs 4 ergibt sich der Vorteil, dass abgekühltes Abwasser, welches den Speicherbehälter verlässt, keinen Druck auf das Umschaltventil ausüben kann und somit keine Rückströmung erfolgen kann. 15 Gemäß den Merkmalen des abhängigen Anspruchs 5 ergibt sich der Vorteil, dass in dem Fall, in dem der Speicherbehälter umströmt wird, kein Abwasser durch die Speicherabflussleitung in den Speicherbehälter strömen kann.According to the features of the dependent claim 4 there is the advantage that cooled waste water leaving the storage tank can exert no pressure on the switching valve and thus no backflow can take place. According to the features of dependent claim 5 there is the advantage that in the case in which the storage container is flowed around, no wastewater can flow through the storage discharge line into the storage container.
Befinden sich in der Abwasserzufuhr und dem Speicherbehälter jeweils ein Temperatursensor, 20 so kann gemäß den Merkmalen des abhängigen Verfahrensanspruchs das Abwasser dann in den Speicherbehälter geleitet werden, wenn es wärmer als das im Speicherbehälter befindliche Wasser ist. Optional muss das zuströmende Wasser um eine gewisse Temperaturdifferenz wärmer sein als das Abwasser, welches sich im Speicherbehälter befindet. 25 Die Erfindung wird nun anhand der Figur detailliert erläutert.If there is a temperature sensor in the waste water supply and the storage container, then according to the features of the dependent method claim, the waste water can then be conducted into the storage container when it is warmer than the water in the storage container. Optionally, the inflowing water must be warmer by a certain temperature difference than the waste water, which is located in the storage tank. The invention will now be explained in detail with reference to FIG.
Die Figur zeigt einen Speicherbehälter 1, welcher von einer Dämmung 5 umgeben ist. Eine Abwasserzufuhr 2, in der sich ein Temperatursensor 12 befindet, ist an ein Umschaltventil 7 angeschlossen. Das Umschaltventil 7 verfügt über zwei Ausgänge, wobei der eine Ausgang mit 30 einer Abwasserleitung 10, die in den oberen Bereich des Speicherbehälters 1 mündet, verbunden ist, sowie einer Abwasserleitung 3, welche in die Kanalisation führt. Aus dem Speicherbehälter 1 führt eine Speicherabflussleitung 13, welche in die Abflussleitung 3 mündet. Im Speicherbehälter 1 befindet sich ein Frischwasserwärmeaustauscher 4, welcher über eine Frisch-wasserzuführleitung 8 verfügt, welche in den unteren Bereich des Speicherbehälters 1 hinein- 35 ragt sowie eine Frischwasserabführleitung 9, welche vom Frischwasserwärmeaustauscher 4 nach außen führt. Im Speicherbehälter 1 befindet sich ferner ein Temperatursensor 11, der ebenso wie der Temperatursensor 12 mit einer Regelung 6 verbunden ist. Von der Regelung 6 führt eine Leitung zu dem Umschaltventil 7. 40 Die Regelung 6 misst kontinuierlich die mit den Temperatursensoren 11,12 erfassten Temperaturen. Ist die Temperatur, welche mit dem Temperatursensor 12 in der Abwasserzufuhr 2 gemessen wird, höher als die Temperatur, welche mit dem Temperatursensor 11 im Speicherbehälter 1 gemessen wird, so schaltet die Regelung 6 das Umschaltventil 7 derartig, dass die Abwasserzufuhr 2 mit der Abwasserleitung 10, welche in den Speicherbehälter 1 führt, verbun- 45 den ist. Warmes Abwasser wird in dem Speicherbehälter 1 gespeichert. Frischwasser, welches durch die Frischwasserzuführleitung 8 in den Frischwasserwärmeaustauscher 4 gelangt, wird in dem Frischwasserwärmeaustauscher erhitzt und über die Frischwasserabführleitung 9 abgeleitet. Wird weiteres Abwasser dem Speicherbehälter 1 zugeführt, so wird abgekühltes Abwasser aus dem Speicherbehälter 1 über die Speicherabführleitung 13 in die Abflussleitung 3 geleitet. 50The figure shows a storage container 1, which is surrounded by an insulation 5. A waste water supply 2, in which a temperature sensor 12 is located, is connected to a changeover valve 7. The reversing valve 7 has two outputs, one of which is connected to a drain 30 a sewer 10, which opens into the upper region of the storage container 1, and a sewer line 3, which leads into the sewer. From the storage tank 1 leads a storage drain line 13, which opens into the drain line 3. In the storage container 1 there is a fresh water heat exchanger 4 which has a fresh water supply line 8 which projects into the lower region of the storage container 1 and a fresh water discharge line 9 which leads from the fresh water heat exchanger 4 to the outside. In the storage container 1, there is also a temperature sensor 11 which, like the temperature sensor 12, is connected to a controller 6. From the control 6 leads a line to the switching valve 7. 40 The control 6 continuously measures the detected with the temperature sensors 11,12 temperatures. If the temperature, which is measured with the temperature sensor 12 in the waste water supply 2, higher than the temperature which is measured with the temperature sensor 11 in the storage tank 1, the control 6 switches the switching valve 7 such that the waste water supply 2 with the sewer line 10th which leads into the storage container 1 is connected. Warm waste water is stored in the storage tank 1. Fresh water, which passes through the Frischwasserzuführleitung 8 in the fresh water heat exchanger 4 is heated in the fresh water heat exchanger and discharged via the Frischwasserabführleitung 9. If further wastewater is supplied to the storage container 1, then cooled wastewater is led out of the storage container 1 via the storage discharge line 13 into the discharge line 3. 50
Stellt die Regelung 6 fest, dass die Temperatur in der Abwasserzufuhr geringer ist als die Temperatur im Speicherbehälter 1, so wird das Umschaltventil 7 derartig gestellt, dass die Abwasserzufuhr 2 mit der Abwasserleitung 3 verbunden ist. Hierdurch kann der Speicherbehälter 1 von kaltem Abwasser umflossen werden. 55If the controller 6 determines that the temperature in the waste water supply is lower than the temperature in the storage tank 1, the change-over valve 7 is set such that the waste water supply 2 is connected to the waste water line 3. As a result, the storage container 1 can be surrounded by cold wastewater. 55
Claims (5)
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT0007606A AT502493B1 (en) | 2006-01-19 | 2006-01-19 | Device for recovering heat from waste water of sewer pipe of e.g. household application, has switch valve switching outlet of sewer pipe, when temperature of temperature sensor exceeds temperature at storage tank around preset difference |
DE102007002051A DE102007002051A1 (en) | 2006-01-19 | 2007-01-13 | Device for recovering heat from waste water of sewer pipe of e.g. household application, has switch valve switching outlet of sewer pipe, when temperature of temperature sensor exceeds temperature at storage tank around preset difference |
CH00046/07A CH699532B1 (en) | 2006-01-19 | 2007-01-15 | Apparatus for recovering heat from waste water, and a method for operating this device. |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT0007606A AT502493B1 (en) | 2006-01-19 | 2006-01-19 | Device for recovering heat from waste water of sewer pipe of e.g. household application, has switch valve switching outlet of sewer pipe, when temperature of temperature sensor exceeds temperature at storage tank around preset difference |
Publications (2)
Publication Number | Publication Date |
---|---|
AT502493B1 true AT502493B1 (en) | 2007-04-15 |
AT502493A4 AT502493A4 (en) | 2007-04-15 |
Family
ID=37943667
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AT0007606A AT502493B1 (en) | 2006-01-19 | 2006-01-19 | Device for recovering heat from waste water of sewer pipe of e.g. household application, has switch valve switching outlet of sewer pipe, when temperature of temperature sensor exceeds temperature at storage tank around preset difference |
Country Status (3)
Country | Link |
---|---|
AT (1) | AT502493B1 (en) |
CH (1) | CH699532B1 (en) |
DE (1) | DE102007002051A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102010011313A1 (en) | 2010-03-13 | 2011-11-17 | Jürgen Zimmer | Waste water heat recovery device for use in private and commercial sectors, has container which runs through water, where thermally insulated heat exchanger tubes are equipped in specially arranged manner |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2976657B1 (en) * | 2011-06-15 | 2016-12-30 | Xavier Goyat | THERMAL EXCHANGER AND USE OF SUCH A HEAT EXCHANGER FOR THE RECOVERY OF WASTEWATER OR LOW TEMPERATURE WATER ENERGY. |
KR101727914B1 (en) * | 2012-06-26 | 2017-04-18 | 엘지전자 주식회사 | Heat exchanger |
KR101363545B1 (en) | 2012-07-11 | 2014-02-14 | 엘지전자 주식회사 | Heat exchanger |
KR101384758B1 (en) | 2012-07-11 | 2014-04-14 | 엘지전자 주식회사 | Heat exchanger |
EP2762820B1 (en) | 2013-02-01 | 2016-04-27 | LG Electronics, Inc. | Air conditioner and heat exchanger therefor |
ES2709098T3 (en) | 2013-07-15 | 2019-04-15 | Abn Pipe Systems S L U | Wastewater evacuation network |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2415877A1 (en) * | 1974-04-02 | 1975-10-09 | Wilhelm Dr Ing Schirp | Heat store and exchanger, utilising waste-water heat - has heat-conductive pipe coils on waste-water tank with bottom outlet |
DE2625157A1 (en) * | 1976-06-04 | 1977-12-08 | Bogner Und Huber Gmbh & Co San | Heat recovery system from hot waste water - feeds storage from collector with heat exchanger and controlled drain valve |
EP0532910A1 (en) * | 1991-08-14 | 1993-03-24 | Klaus Seib | Installation for heat recovery from domestic hot water |
DE4337744A1 (en) * | 1993-11-05 | 1995-05-11 | Stiebel Eltron Gmbh & Co Kg | Installation for recovering heat from fluids, e.g. domestic waste water |
-
2006
- 2006-01-19 AT AT0007606A patent/AT502493B1/en not_active IP Right Cessation
-
2007
- 2007-01-13 DE DE102007002051A patent/DE102007002051A1/en not_active Withdrawn
- 2007-01-15 CH CH00046/07A patent/CH699532B1/en not_active IP Right Cessation
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2415877A1 (en) * | 1974-04-02 | 1975-10-09 | Wilhelm Dr Ing Schirp | Heat store and exchanger, utilising waste-water heat - has heat-conductive pipe coils on waste-water tank with bottom outlet |
DE2625157A1 (en) * | 1976-06-04 | 1977-12-08 | Bogner Und Huber Gmbh & Co San | Heat recovery system from hot waste water - feeds storage from collector with heat exchanger and controlled drain valve |
EP0532910A1 (en) * | 1991-08-14 | 1993-03-24 | Klaus Seib | Installation for heat recovery from domestic hot water |
DE4337744A1 (en) * | 1993-11-05 | 1995-05-11 | Stiebel Eltron Gmbh & Co Kg | Installation for recovering heat from fluids, e.g. domestic waste water |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102010011313A1 (en) | 2010-03-13 | 2011-11-17 | Jürgen Zimmer | Waste water heat recovery device for use in private and commercial sectors, has container which runs through water, where thermally insulated heat exchanger tubes are equipped in specially arranged manner |
Also Published As
Publication number | Publication date |
---|---|
AT502493A4 (en) | 2007-04-15 |
DE102007002051A1 (en) | 2007-07-26 |
CH699532B1 (en) | 2010-03-31 |
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