WO2013171050A1 - Procédé permettant de faire fonctionner une installation d'alimentation en eau chaude et installation d'alimentation en eau chaude permettant de mettre en œuvre le procédé - Google Patents

Procédé permettant de faire fonctionner une installation d'alimentation en eau chaude et installation d'alimentation en eau chaude permettant de mettre en œuvre le procédé Download PDF

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Publication number
WO2013171050A1
WO2013171050A1 PCT/EP2013/058609 EP2013058609W WO2013171050A1 WO 2013171050 A1 WO2013171050 A1 WO 2013171050A1 EP 2013058609 W EP2013058609 W EP 2013058609W WO 2013171050 A1 WO2013171050 A1 WO 2013171050A1
Authority
WO
WIPO (PCT)
Prior art keywords
hot water
supply system
volume
water supply
water
Prior art date
Application number
PCT/EP2013/058609
Other languages
German (de)
English (en)
Inventor
Remo Meister
Original Assignee
Remo Meister
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 Remo Meister filed Critical Remo Meister
Priority to DE112013001269.3T priority Critical patent/DE112013001269A5/de
Priority to ATA9191/2013A priority patent/AT517910B1/de
Publication of WO2013171050A1 publication Critical patent/WO2013171050A1/fr

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
    • E03B7/00—Water main or service pipe systems
    • E03B7/04—Domestic or like local pipe systems
    • 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
    • F24D17/0073—Arrangements for preventing the occurrence or proliferation of microorganisms in the water
    • 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
    • F24D17/0078—Recirculation systems
    • 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
    • F24D19/00—Details
    • F24D19/10—Arrangement or mounting of control or safety devices
    • F24D19/1006—Arrangement or mounting of control or safety devices for water heating systems
    • F24D19/1051—Arrangement or mounting of control or safety devices for water heating systems for domestic hot water

Definitions

  • the present invention relates to the field of hot water supply. It relates to a method for operating a hot water supply system according to the preamble of claim 1.
  • Legionella which are practically always present in water, is below a value that is significant for humans under these cold water conditions. Legionella is transmitted mainly via the lungs during breathing of fine legionella-contaminated water droplets, such as those that occur during showering. Transmission of Legionella via drinking water or washing with water, on the other hand, is unlikely.
  • the document DE 1 99 32 436 A1 discloses a domestic hot water system with at least one drinking water heater / storage tank for domestic hot water, a Trinkkaltwassertechnisch for the supply of cold drinking water in the container, a conduit system which forms a closed circulation circuit with the container, consisting of a container on the connected output line with at least one tap for the removal of domestic hot water and connected to the output line and the container Engangstechnisch for returning the not removed domestic hot water in the container, at least one pumping device for the circulation of the domestic hot water in the circulation circuit and at least one connected to a heating circuit heat exchanger Heating the cold drinking water supplied by the drinking cold water line and maintaining the drinking hot water temperature in the circulation circuit.
  • the Engangstechnisch has at least one branch with at least one branch line, wherein the Engangs réelle is connected in the central region of the container just above the heat exchanger, the drinking water line below the Engangstechnisch in the lower is rich connected to the container, the branch line is connected below the drinking water line at the bottom of the container and a first balancing valve in the Bngangstechnisch in the flow direction after the branch ung angeord net and a second balancing valve in the branch line is arranged.
  • the circulation temperature in the entire piping network is maintained at a level such that the hot water is largely free of microorganisms, in particular Legionella, and that during a relatively short period of time an increased circulating temperature in a largely shortened branch of the container of microorganisms thermally disinfected.
  • the document EP 1 094 279 A2 describes a storage tank system with a hot water reservoir, a heater for heating water, a cold water supply, which is connected to the storage tank system and supplies it with cold tap water, a tapping point connected to the reservoir for the discharge of hot water from the reservoir. Means are provided in the reservoir for moving water from a lower portion of the reservoir to another portion of the reservoir.
  • the document DE 36 29 532 A1 discloses a device with a water heater, a connected to this tap fitting and connected to this shower line with shower head, a drain valve is provided with which the shower is drainable.
  • a line arrangement for hot water supply in which a hot water pressure line from a water heater to a tap fitting and a discharge line from the tap fitting lead to a tapping point and to the tap fitting a cold water line is connected.
  • a purge valve is provided, which is located on the one hand to the cold water line and on the other hand connected to the hot water pressure line and / or to the discharge line.
  • the document EP 0 296 630 A1 shows a hot water heater with a water-carrying storage tank with a cold water inlet in the lower tank area and a hot water outlet in the upper tank area and with a storage container angeord Neten heating element. In the lower tank area a cold water drain is provided.
  • Document WO 0240906 A1 describes a method of reducing bacterial growth in a water mixer comprising a cold water supply pipe, a hot water supply pipe and a mixing chamber.
  • the mixer's mixing chamber and the consumer line are emptied of hot water or mixed water after consumption, with the mixer being supplied with additional cold water to lower the temperature in the mixer and in the consumer line, and then the cold water supplied to be discharged to the expert and the consumer.
  • the document FR 2 876 1 78 A1 discloses a device with bypass valves for the passage of cold and hot water from hot water and cold water supply lines to cold and hot water chambers. Bne mixing chamber mixes the cold and hot water. The mixed water is discharged through a solenoid valve which is opened by an electric pulse from a 6-volt lithium battery when corresponding information is detected by a detection unit and which is closed by another pulse when a certain state is reached , A similar solution is known from WO 01/61 224 A1.
  • the document FR 2 891 1 69 A1 finally discloses an automatic shower purging system, which consists of a Mag netventil, which is installed in a bypass line between the hot water supply line under the line between the M ischertician and the shower head. For example, the valve is opened twice a day for 10 minutes by a central controller or timer to prevent the build-up of dormant water and to reduce or avoid the possibility of spreading Legionnaires' disease.
  • the subject of the e r invention is a method for operating a hot water supply system, in which method a cold water inlet of the hot water supply system supplied fresh water, heats the supplied fresh water and the hot water produced is fed through a hot water pipe to one or more consumers, wherein the hot water with a predetermined hot water Volume generated and kept available for consumption.
  • Major avoidance of harmful bacterial concentrations, in particular of Legionella, in the hot water volume is replaced to a sufficient extent hot water from the hot water volume of fresh water.
  • the entire hot water volume is completely replaced by fresh water in a given period of time.
  • Bne other embodiment is characterized in that the removal of hot water from the hot water volume is monitored by the consumer, and that in addition hot water is replaced by fresh water when the consumption of hot water is insufficient to the entire hot water volume in the given period completely replaced by fresh water.
  • hot water is deliberately drained from the hot water volume for additional FJTER of hot water by fresh water.
  • Another embodiment is characterized in that the hot water is drained from the hot water volume via a valve present at a consumer. Likewise, however, the hot water from the hot water volume can be drained via a specially designated valve.
  • valve for draining the hot water is designed as a controllable valve, wherein the targeted draining of the hot water is controlled by a controller.
  • Still another embodiment of the method according to the invention is characterized in that the controller controls the valve according to the time-dependent hot water consumption.
  • controllable valve is assigned to a consumer.
  • the controllable valve can also be a separate outlet valve.
  • Another embodiment of the hot water supply system according to the invention is characterized in that second means for monitoring the hot water supply are provided. Consumption from the hot water volume are provided, and that the second M medium are connected to the controller.
  • the second means comprise a flow meter which is arranged between the cold water inlet and the first means.
  • Another embodiment is characterized in that the first means comprise a hot water circuit with a circulating pump.
  • the hot water circuit may have a heat exchanger, which is net angeord in a hot water tank.
  • Bne another embodiment of the invention r e is characterized in that the first M edium include cooperating with a hot water tank hot water pipe.
  • the hot water pipe can be connected directly to an outlet of the hot water tank.
  • the hot water pipe is coupled via a heat exchanger with the hot water tank.
  • the present invention is based on the situation that it comes in drinking, service or fresh water area under appropriate conditions (low water consumption, water temperature between 25 -45 ° C) like a Legionella contamination in drinking hot water, which at the consumer Diseases can lead to death.
  • low water consumption water temperature between 25 -45 ° C
  • the water is periodically heated to over 60 ° C in order to prevent this danger, thereby killing the Legionella (see the Legionella circuit mentioned above).
  • One type of system has a lot of water content because the domestic hot water is stored in a domestic hot water tank.
  • the other type of system has relatively little water content, since the domestic hot water is heated in a water-heater process and the heat energy storage takes place in a closed circuit (fresh water Mod ul technology).
  • the new solution described below is basically suitable for both systems, but has many advantages in connection with the freshwater module technology.
  • Legionella have so far been mainly fought by raising the water temperature to> 60 ° C. Furthermore, in particular in connection with the associated standards, it is the viewpoint that water should / must always flow. Hot water pipes, which are not or rarely flowed through, should be avoided if possible.
  • the present invention is based on a solution which does not focus on thermal control of the bacteria by continuous or periodic heating of the fresh water, but on the "dilution" of the fresh water., Of course, barbing can also be combined with this dilution become.
  • hot water volume V a possibly contained therein storage volume
  • new, fresh water in the Net or volume refills no stagnant water in the network or volume over a period> 8h or 4h.
  • the temporal or periodic discharge of fresh water on the hot water side as cold as possible can be controlled by means of fixed time intervals (eg opening the corresponding emptying points every 8 hours for 2 minutes) or automatically with adapted time intervals via temperature and / or volume flow detection (for example at a sports facility during showers never during the season and periodically during the holidays).
  • Fig. 1 shows a greatly simplified scheme of a hot water supply system according to an embodiment of the invention.
  • the water supply system 1 0a of Fg. 1 comprises a closed hot water circuit 1 5, in which the hot water by means of a U misselzpumpe 1 6 (or by gravity) circulates.
  • the hot water circuit 1 5 is thermally coupled via a heat exchanger 1 4 to a hot water tank 1 2 1 (water heater principle), the water content of a heater 1 1 via a further heat exchanger 1 3 is heated.
  • the hot water circuit 1 5 can be removed 30 via a Aus headingtechnisch hot water and routed to a tap, which is a shower 21 in the example shown. Of course, further taps of this or another type can be connected to the hot water circuit 1 5.
  • the hot water circuit 1 5 is supplied via a cold water connection line 1 8 of a cold water inlet 1 7 cold water, which replaces the withdrawn via the Ausatorium für 30 hot water in the hot water circuit 1 5.
  • a cold water line 20 leads from the cold water inlet 1 7 a cold water line 20 to tapping point 21 so that the desired water temperature can be achieved at the shower by a M ischung of hot water and cold water, which is set by a hot water valve 22 and a cold water valve 23.
  • the hot water volume V is substantially equal to the content of the hot water circuit 1 5.
  • a controllable outlet valve 29 is arranged , which are opened by a controller 24 via a control line 27 can, to selectively run hot water from the hot water cycle 1 5 or expire the hot water volume.
  • the leaked over the outlet valve 29 hot water is replaced at the same time by cold water, which flows via the cold water connection line 1 8 in the hot water circuit 1 5.
  • the hot water volume V can be completely exchanged in a predetermined period, with the exchanged water and the bacteria or Legionella contained therein are removed from the system. Through this procedure, the bacterial population in the hot water system can be kept controlled at a low and thus harmless level.
  • the hot water valve 22 of the tap may be formed as a controllable valve and forcibly opened by the controller 24 for purposes of "dilution".
  • the controller 24 may control the dilution process, for example by means of a timer, which ensures that in a given period of time the water in the hot water system is replaced.
  • a simplified procedure would not take account of the fact that sufficient replacement can already be achieved by normal operation at the tap (shower 21). In order to avoid unnecessary water losses in this regard, according to FIGS.
  • Control 24 indicates in which U mfang and in which periods hot water from the hot water circuit 1 5 and the hot water volume V has been exchanged for fresh water from the cold water inlet 1 7.
  • the controller 24 on the basis of the data of the flow meter 1 9 determines that in a period of for example 4 or 8 h, the hot water volume V has been exchanged for cold fresh water only half, the controller 24, the outlet valve 29 open to the hot water - Dilute volume further.
  • a simple hot water line 28 is led to the tap instead of the hot water circuit, wherein in the hot water line 28, a heat exchanger 1 4 is inserted, which in turn is in the hot water tank 1 2.
  • the hot water volume V is in this case the volume of the hot water pipe 28 from the input to the hot water tank 1 2 to the outlet valve 29.
  • En substantially larger hot water volume V must - as already mentioned above - replaced or diluted if the contents of the hot water tank 1 2 part of the hot water circuit 1 5 is inserted (hot water supply system 1 0c in Fg. 3) or in the hot water line 28 (hot water supply system 1 0d in Fg. 4).
  • not only individual lines are affected by the exchange or dilution, but the content of the hot water tank 1 2 itself, which leads to higher water losses in the forced dilution.

Landscapes

  • Engineering & Computer Science (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Combustion & Propulsion (AREA)
  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Public Health (AREA)
  • Water Supply & Treatment (AREA)
  • Health & Medical Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Domestic Plumbing Installations (AREA)
  • Domestic Hot-Water Supply Systems And Details Of Heating Systems (AREA)
  • Heat-Pump Type And Storage Water Heaters (AREA)
  • Devices For Dispensing Beverages (AREA)

Abstract

L'invention concerne un procédé permettant de faire fonctionner une installation d'alimentation en eau chaude (10a), selon lequel de l'eau fraîche est amenée par une arrivée d'eau froide (17) de l'installation d'alimentation en eau chaude (10a), l'eau fraîche amenée est chauffée et l'eau chaude produite est amenée par une conduite d'eau chaude (28) à un ou plusieurs consommateurs (21), de l'eau chaude présentant un volume (V) prédéterminé étant produite et gardée à disposition pour être consommée. On évite de manière simple un risque sanitaire dû aux bactéries, en ce que, pour éviter de manière satisfaisante des concentrations nocives de bactéries, en particulier de légionelles, dans le volume d'eau chaude (V), l'eau chaude provenant du volume d'eau chaude est remplacée par de l'eau fraîche.
PCT/EP2013/058609 2012-05-15 2013-04-25 Procédé permettant de faire fonctionner une installation d'alimentation en eau chaude et installation d'alimentation en eau chaude permettant de mettre en œuvre le procédé WO2013171050A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE112013001269.3T DE112013001269A5 (de) 2012-05-15 2013-04-25 Verfahren zum Betrieb einer Warmwasserversorgungsanlage sowie Warmwasserversorgungsanalge zur Durchführung des Verfahrens
ATA9191/2013A AT517910B1 (de) 2012-05-15 2013-04-25 Verfahren zum Betrieb einer Warmwasserversorgungsanlage sowie Warmwasserversorgungsanlage zur Durchführung des Verfahrens

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH00691/12A CH706516B1 (de) 2012-05-15 2012-05-15 Verfahren zum Betrieb einer Warmwasserversorgungsanlage sowie Warmwasserversorgungsanlage zur Durchführung des Verfahrens.
CH691/12 2012-05-15

Publications (1)

Publication Number Publication Date
WO2013171050A1 true WO2013171050A1 (fr) 2013-11-21

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ID=48227254

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2013/058609 WO2013171050A1 (fr) 2012-05-15 2013-04-25 Procédé permettant de faire fonctionner une installation d'alimentation en eau chaude et installation d'alimentation en eau chaude permettant de mettre en œuvre le procédé

Country Status (4)

Country Link
AT (1) AT517910B1 (fr)
CH (1) CH706516B1 (fr)
DE (1) DE112013001269A5 (fr)
WO (1) WO2013171050A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202016106313U1 (de) * 2016-11-11 2018-02-14 Gebr. Kemper Gmbh + Co. Kg Metallwerke Wassersystem mit einem Durchflusserwärmer und einer Spülstation
CN111365931A (zh) * 2020-04-16 2020-07-03 浙江大冲能源科技有限公司 一种工业冷却水平衡优化节能控制系统
AT524588B1 (de) * 2021-03-03 2022-07-15 Maximilian Forstner Warmwasserbereitungsanlage

Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3629532A1 (de) 1986-08-29 1988-03-03 Stiebel Eltron Gmbh & Co Kg Einrichtung mit warmwasserbereiter und dusche
EP0296630A1 (fr) 1987-06-24 1988-12-28 Eberl, Heidemarie Réchauffeur d'eau chaude
DE3816497A1 (de) * 1988-05-14 1989-11-23 Voit Silvia Heizungs- bzw. brauchwasserkessel
DE3832837A1 (de) 1988-09-28 1990-03-29 Stiebel Eltron Gmbh & Co Kg Leitungsanordnung zur warmwasserversorgung
DE3838476A1 (de) * 1988-11-12 1990-05-17 Buderus Heiztechnik Gmbh Verfahren zum betreiben eines speicherwassererwaermers
DE19932436A1 (de) 1999-07-12 2001-02-01 Gewofag Gemeinnuetzige Wohnung Trinkwarmwasserleitungsanlage
EP1094279A2 (fr) 1999-10-19 2001-04-25 Heatex B.V. Traitement d'eau chauffée dans un accumulateur avec provisions anti-legionella
WO2001061224A1 (fr) 2000-02-17 2001-08-23 Fm Mattsson Ab Procede et dispositif de reduction de la croissance de bacteries dans un melangeur d'eau et dans une conduite en dependant
WO2002040906A1 (fr) 2000-11-17 2002-05-23 Fm Mattsson Ab Procede permettant de diminuer la croissance de bacteries dans une soupape de melange d'eau et soupape de melange d'eau mettant en oeuvre ce procede
FR2876178A1 (fr) 2004-10-05 2006-04-07 Triomphe Frederic Sapey Dispositif pour deduire la croissance des bacteries dans un melangeur d'eau
FR2891169A1 (fr) 2005-09-26 2007-03-30 Franck Verger Dispositif de rincage de douche automatique anti-legionelle.
DE102006032048A1 (de) * 2006-07-10 2008-01-17 Girolami Gmbh Verfahren zum Betreiben einer Trinkwasseranlage und Trinkwasseranlage
EP2224176A1 (fr) * 2009-02-25 2010-09-01 Electricité de France Installation de chauffe-eau ameliorée

Patent Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3629532A1 (de) 1986-08-29 1988-03-03 Stiebel Eltron Gmbh & Co Kg Einrichtung mit warmwasserbereiter und dusche
EP0296630A1 (fr) 1987-06-24 1988-12-28 Eberl, Heidemarie Réchauffeur d'eau chaude
DE3816497A1 (de) * 1988-05-14 1989-11-23 Voit Silvia Heizungs- bzw. brauchwasserkessel
DE3832837A1 (de) 1988-09-28 1990-03-29 Stiebel Eltron Gmbh & Co Kg Leitungsanordnung zur warmwasserversorgung
DE3838476A1 (de) * 1988-11-12 1990-05-17 Buderus Heiztechnik Gmbh Verfahren zum betreiben eines speicherwassererwaermers
DE19932436A1 (de) 1999-07-12 2001-02-01 Gewofag Gemeinnuetzige Wohnung Trinkwarmwasserleitungsanlage
EP1094279A2 (fr) 1999-10-19 2001-04-25 Heatex B.V. Traitement d'eau chauffée dans un accumulateur avec provisions anti-legionella
WO2001061224A1 (fr) 2000-02-17 2001-08-23 Fm Mattsson Ab Procede et dispositif de reduction de la croissance de bacteries dans un melangeur d'eau et dans une conduite en dependant
WO2002040906A1 (fr) 2000-11-17 2002-05-23 Fm Mattsson Ab Procede permettant de diminuer la croissance de bacteries dans une soupape de melange d'eau et soupape de melange d'eau mettant en oeuvre ce procede
FR2876178A1 (fr) 2004-10-05 2006-04-07 Triomphe Frederic Sapey Dispositif pour deduire la croissance des bacteries dans un melangeur d'eau
FR2891169A1 (fr) 2005-09-26 2007-03-30 Franck Verger Dispositif de rincage de douche automatique anti-legionelle.
DE102006032048A1 (de) * 2006-07-10 2008-01-17 Girolami Gmbh Verfahren zum Betreiben einer Trinkwasseranlage und Trinkwasseranlage
EP2224176A1 (fr) * 2009-02-25 2010-09-01 Electricité de France Installation de chauffe-eau ameliorée

Also Published As

Publication number Publication date
DE112013001269A5 (de) 2014-12-18
CH706516B1 (de) 2016-01-15
AT517910B1 (de) 2017-12-15
CH706516A1 (de) 2013-11-15
AT517910A5 (de) 2017-05-15

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