EP2138774A2 - Sanitäres Warmwassernetz mit niedrigem Krankheitserregergehalt - Google Patents

Sanitäres Warmwassernetz mit niedrigem Krankheitserregergehalt Download PDF

Info

Publication number
EP2138774A2
EP2138774A2 EP09006957A EP09006957A EP2138774A2 EP 2138774 A2 EP2138774 A2 EP 2138774A2 EP 09006957 A EP09006957 A EP 09006957A EP 09006957 A EP09006957 A EP 09006957A EP 2138774 A2 EP2138774 A2 EP 2138774A2
Authority
EP
European Patent Office
Prior art keywords
network
hot water
water
cold water
heating
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Withdrawn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
EP09006957A
Other languages
English (en)
French (fr)
Other versions
EP2138774A3 (de
Inventor
Gérard Nicolai
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.)
Sogoba
Original Assignee
Sogoba
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 Sogoba filed Critical Sogoba
Publication of EP2138774A2 publication Critical patent/EP2138774A2/de
Publication of EP2138774A3 publication Critical patent/EP2138774A3/de
Withdrawn legal-status Critical Current

Links

Images

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
    • F24D17/00—Domestic hot-water supply systems

Definitions

  • the invention is placed in the field of hot water supply, particularly domestic hot water, It consists of a device ensuring a microbiological quality of hot water distributed in relation to regulatory requirements which is more with an improved warranty the temperature stability of said hot water.
  • legionellosis is a serious acute pneumonitis caused by a Gram-negative bacillus, Legionella pneumophilia , which is spread by air conditioning systems and water pipes, especially hot water.
  • Legionella pneumophilia which is spread by air conditioning systems and water pipes, especially hot water.
  • Presently hot water is obtained by means of open networks that include at least one cold water supply, a cold water heating means, incidentally provided with a regulating means, and pipes that open onto a water supply.
  • dispensing orifice which may be for example a sink, a bidet, a shower or a bath, the assembly may optionally be provided with means of decontamination or sterilization.
  • the user tempers the temperature of the water that he wishes to obtain by mixing hot water and cold water through mixers or mixers, possibly thermostatic.
  • thermostatic mixing valves for example, even possibly equipped with check valves, which due to their technical design are clogged over time and thus present a regular risk of mixing hot water / cold water with bacterial growth and biofilm irreversible, generate traps favoring bacterial proliferation.
  • a biofilm develops and irreversibly contaminates the pipes on both sides of the mixer.
  • the principle of the invention is to take advantage of the sanitary quality of the cold water network to provide domestic hot water without the hot water network being an open network, mixing with the water. 'Cold water.
  • a hot water distribution network comprising an undivided hot water network and a network of cold water distributed after heating (distributed hot water), these two networks being able to come into contact with each other. without mixing, through a heat exchanger, so that in the heat exchanger, in contact with the undistributed hot water network called heating network, the cold water circulating in the cold water network heats up at a preprogrammed temperature before being distributed in the hot water distribution network (German patent DE 10 2004 013 219 ).
  • the network described in this document comprises a controller and this document describes such a network in order to limit the calcification problems that occur in such networks.
  • a first problem of the network described in this document lies in the appearance of differential pressures varying in the distribution time between the distributed cold water network and the hot water network or heating network, which causes variations in the water temperature, Indeed when the distributed hot water network has more than two draw points, the pressure in said network drops instantly when a second distribution begins while a first is in progress. This variation in pressure results in a variation of the temperature of the distributed hot water.
  • Such a network therefore does not allow the equalization of the pressures in the two networks and particularly their balancing, and by consequence does not allow the stabilization of the water temperature. It is to solve this problem that the inventors have had the idea to add to the network a pressure balancer.
  • the distribution network according to the invention has the great advantage that in case of cut-off of the circulation of cold water circulation of water in the hot water circuit is automatically cut. This prevents overheating of the stagnant cold water which, when the domestic hot water circulation is resumed, could have negative consequences for the user. The security of the users is thus rumored improved.
  • the means used according to the invention do not involve any excessive electronics, no robotization and are only simple and conventional means to implement which also allows to lower the costs of the installation.
  • the pressure balancer is a membrane pressure balancer.
  • the cold water network may be a sanitary cold water network.
  • the hot water network known as heating may be closed or open. If it is closed, the hot water circulates in loop in the network and is constantly warmed up. If the network is open, the hot water heating after passing through the heat exchanger will be evacuated and lost through an evacuation possibly equipped with a throat drain. It is understandable that in this arrangement the user of the domestic hot water network never comes into contact with the lost heating hot water.
  • the hot water network known as heating is a closed network. This limits the risks and especially lowers the costs of consumption of water and heating means.
  • the desired temperature of the hot water distributed by the network according to the invention is obtained by heating the cold water circulating in the open cold water system by the calories of the hot water heating. circulating in the hot water network called heating closed.
  • the water temperature of the open cold water network may be between 5 ° C and 25 ° C, preferably between 10 ° C and 15 ° C.
  • the temperature of the hot water network called heating water may be between 45 ° C and 90 ° C, preferably between 50 ° C and 70 ° C.
  • the desired temperature of the distributed hot water can be obtained by regulating, simultaneously or independently, the flow of water in the hot water network called heating and / or the cold water network.
  • the means for regulating the flow of water in the so-called heating network may be in the form of a needle valve positioned on said network.
  • the means for regulating the flow of water in the cold water network may be in the form of a needle valve positioned on said network.
  • the hot water distribution system according to the invention may comprise a needle valve positioned on the so-called heating network and a needle valve positioned on the cold water network.
  • the needle valve positioned on the so-called heating network can be positioned on the part of said network located after the heat exchanger and the needle valve positioned on the cold water network can be positioned on the part of said network located before the heat exchanger.
  • the means for regulating the flow of water in the so-called heating network may be in the form of a thermostatic valve positioned on said heating network, said valve being able to be controlled by a sensor capturing the temperature of the water circulating in the cold water system.
  • said thermostatic valve positioned on said heating network can be positioned on the part of said network located after the heat exchanger and the probe positioned so that it can capture the temperature of the heat exchanger. water circulating in the part of the cold water network located before the heat exchanger.
  • the combination of the effects of the pressure balancer and the means for regulating the flow rate of the water circulating in the so-called heating network can make it possible to obtain temperature regulation.
  • domestic hot water the one that will be distributed
  • the invention makes it possible to obtain a variation in the temperature of the domestic hot water (that which will be dispensed) which may be less than 5 ° C., still more advantageously less than 2 ° C.
  • a hot water advantageously sanitary, at a temperature of 26 ° C, by heating through the exchanger a cold water, preferably sanitary, maintained at 15 ° C and a flow stabilized 4 liters / minute by hot water at 50 ° C flowing in the hot water network called heating closed at a rate of 2 liters / minute.
  • any known heat exchanger can be used to produce the hot water distribution network, advantageously sanitary, according to the invention.
  • a small exchanger calibrated to heat a flow of 4 to 10 L / min.
  • Said exchanger is preferably a spiral single-channel exchanger, or even consisting of a double coil winding.
  • the heat exchanger can be dimensioned so that the volume of liquid that can contain the exchanger is less than or equal to 250 milliliters, equivalent to 2 meters of a 10 mm inner diameter tube.
  • a general hot water network said single closed heating may be sufficient to supply hot water, preferably sanitary, all hot water distribution points of a building.
  • advantageously sanitary may be a loop of hot water network said closed heating, each loop supplying at least one heat exchanger, and each heat exchanger fed at least one hot water distribution point, preferably sanitary.
  • closed heating can be in contact with several hot water distribution network, advantageously sanitary, ie the same water network hot said closed heating can feed several heat exchangers placed on different supply lines of different hot water distribution points, preferably sanitary.
  • sanitary is a loop of hot water network said heating closed.
  • the same building can include several hot water distribution networks, advantageously sanitary, independent, based on the principle of the invention.
  • the network according to the invention may furthermore comprise any means of security and / or any means of inspection, usual in plumbing, such as valves, mechanical and / or electrical, manholes, valves, self-sealing connections allowing, if necessary a thermal disinfection etc.
  • the network according to the invention can be used in any place requiring a distribution of hot water, preferably sanitary. Preferably, these places are generally public places and particularly places of care such as clinics, medical offices, nursing rooms or hospitals. According to the invention, the network makes it possible to deliver a water whose characteristics are those of the cold water network -so not disturbed by a mixture of hot and cold water (so-called water Q1.2). In order for this water to be qualified as bacteriologically controlled water (Q2.1), it is still possible according to the invention to associate with the network, an additional means of sterilization, for example and preferably the means developed by the applicant. and the subject of the patent FR2693374 .
  • Q2.1 bacteriologically controlled water
  • a non-simultaneous tripping of the opening / closing of the hot water network and the cold water network Preferably, the opening of the cold water network is triggered before the opening of the hot water network, so as to heat the body of the exchanger and to obtain the ideal temperature for the user, and the closure of the network of the hot water network is triggered before closing the cold water network, to cool the body of the heat exchanger and lower the temperature of the water remaining in the heat exchanger.
  • FIG. 1 schematically shows a sanitary hot water distribution network according to the invention comprising a sink and a shower.
  • FIG. 1 2 distribution networks of domestic hot water according to the invention, one (A) leading to a sink and the other (B) leading to a shower.
  • sanitary cold water supply circuit 10
  • a closed hot water network 11
  • domestic hot water distribution networks 12
  • a pressure balancer 13
  • a pressure regulating means 14
  • the closed hot water network (11) makes a loop passing through a heat exchanger (15). It is also noted that the sanitary cold water network (10) also passes into the heat exchanger (15) and that the heat exchanger leaves the domestic hot water distribution network (12) feeding the sink (A) or the shower (B).
  • Each loop of the closed hot water network (11), as each cold water network (10) comprises a means for regulating the flow (14) of the water circulating in said circuit comprising a solenoid valve (14a) and a probe (14b).
  • the triggering of the dispensing water can be ensured by an infrared sensor detecting a presence and triggering the opening of the cold water and hot water solenoid valves at the same time.
  • the closing of the hot water solenoid valve can be ensured immediately as soon as no presence is detected.
  • the closing of the cold water solenoid valve can take several seconds (3 to 5 s) after no more presence is detected, so as to cool the exchanger and avoid stagnation of the cold water reheated.
  • the infrared cell can be programmed so as to automatically trigger a purge of the cold water network (for example 6 hours after the last use of the network), in order to avoid any stagnation of water to be distributed in the exchanger and the creation of the biofilm that requires stagnation of at least 12 hours to settle irreversibly.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Domestic Hot-Water Supply Systems And Details Of Heating Systems (AREA)
  • Thermotherapy And Cooling Therapy Devices (AREA)
EP09006957A 2008-05-26 2009-05-25 Sanitäres Warmwassernetz mit niedrigem Krankheitserregergehalt Withdrawn EP2138774A3 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0802817 2008-05-26

Publications (2)

Publication Number Publication Date
EP2138774A2 true EP2138774A2 (de) 2009-12-30
EP2138774A3 EP2138774A3 (de) 2010-10-20

Family

ID=40193796

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09006957A Withdrawn EP2138774A3 (de) 2008-05-26 2009-05-25 Sanitäres Warmwassernetz mit niedrigem Krankheitserregergehalt

Country Status (1)

Country Link
EP (1) EP2138774A3 (de)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2693374A1 (fr) 1992-07-10 1994-01-14 Sogoba Installation pour la délivrance d'un liquide stérile et procédé de stérilisation permanente.
DE102004013219B3 (de) 2004-03-17 2005-05-19 Sandler Systemtechnik E.K. Verfahren und Vorrichtung zum Bereitstellen von über eine Wärmetauschereinrichtung erwärmten Brauchwasser

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB213189A (en) * 1923-08-30 1924-03-27 Guy Edward Shoemaker Improvements in and relating to water heating apparatus
US3642021A (en) * 1970-04-09 1972-02-15 Leslie Co Blending valve
DE4035115C2 (de) * 1990-03-12 1993-11-04 Sandler Energietechnik Anordnung zum aufheizen und zum bereitstellen von warmem oder heissem brauchwasser von trinkwasserqualitaet
NL9302263A (nl) * 1993-12-24 1995-07-17 Zonne En Nederland B V Werkwijze en inrichting voor het regelen van vloeistoftemperatuur.
GB2322929A (en) * 1997-03-03 1998-09-09 Inter Albion Ltd Domestic hot and cold water supply
FR2813406B1 (fr) * 2000-08-31 2002-11-29 Anne Sassier Equilibreur des pressions eau chaude et eau froide des circuits d'eau sanitaire
WO2008006167A1 (en) * 2006-07-12 2008-01-17 Sheringham Investments Pty Ltd Warm liquid dispensing system
FR2907925B1 (fr) * 2006-10-30 2009-01-30 Pierre Henri Sassier Appareil equilibreur de pressions asymetrique de securite pour circuits d'eau sanitaire chaude et froide

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2693374A1 (fr) 1992-07-10 1994-01-14 Sogoba Installation pour la délivrance d'un liquide stérile et procédé de stérilisation permanente.
DE102004013219B3 (de) 2004-03-17 2005-05-19 Sandler Systemtechnik E.K. Verfahren und Vorrichtung zum Bereitstellen von über eine Wärmetauschereinrichtung erwärmten Brauchwasser

Also Published As

Publication number Publication date
EP2138774A3 (de) 2010-10-20

Similar Documents

Publication Publication Date Title
EP2219686B1 (de) Vorrichtung zur sicherung einer flüssigkeit durch ultraviolettstrahlung am verwendungspunkt und verfahren zur sicherung einer flüssigkeit
ES2331378T3 (es) Circuito hidraulico para las maquinas de bebidas instantaneas, valvula de descarga y seguridad para dicho circuito y procedimiento para la preparacion de bebidas instantaneas con dicho circuito.
US10119259B2 (en) Flow diverter with antisiphon
JP2018102301A5 (de)
JP5587898B2 (ja) 水栓用バルブ装置
FR2916033A1 (fr) Systeme et groupe de melange pour installations sanitaires, avec fonction de desinfection contre la bacterie legionella
FR2928442A1 (fr) Installation de production d'eau chaude sanitaire
CN103613165A (zh) 一种嵌入式紫外杀菌管道净水器
CN115886557A (zh) 饮水装置的控制方法、控制装置及计算机可读存储介质
FR3059686A1 (fr) Economiseur d'eau potable
EP2138774A2 (de) Sanitäres Warmwassernetz mit niedrigem Krankheitserregergehalt
CN102414500A (zh) 阀组件
CN111285522A (zh) 饮料分配器
FR3013417A1 (fr) Robinet mitigeur thermostatique a corps froid
EP1207805B1 (de) An einen wasserleitungshahn anschliessbare zahnspüleinrichtung
EP2837894A1 (de) Heizanlage eines sanitären Wasserkreislaufs, und Wasserkreislauf zum Heizen einer Wohnung
EP3382110A1 (de) Hahn und system zur selektiven abgabe von aufbereiteter und nicht aufbereiteter flüssigkeit
CN207498202U (zh) 纯饮机
WO2002011773A1 (fr) Procede et dispositif de traitement sanitaire simultane d'un fluide et de son reseau
US10213757B1 (en) In situ treatment analysis mixing system
FR3057077A1 (fr) Dispositif de controle de flux et systeme de canalisation associe
Coniglio et al. Continuous disinfection by Monochloramine on domestic hot water system of health-care facilities for the control of legionella contamination in Italy
CN112272724B (zh) 安全阀、安全配件和用于控制安全阀的方法
FR2864786A1 (fr) Pastolegio
US9309135B2 (en) Methods and apparatus for delivery system for water enhancements

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20090525

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK TR

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL BA RS

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20161201