EP3660234B1 - Système d'eau potable et d'eau sanitaire - Google Patents

Système d'eau potable et d'eau sanitaire Download PDF

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Publication number
EP3660234B1
EP3660234B1 EP19210407.3A EP19210407A EP3660234B1 EP 3660234 B1 EP3660234 B1 EP 3660234B1 EP 19210407 A EP19210407 A EP 19210407A EP 3660234 B1 EP3660234 B1 EP 3660234B1
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EP
European Patent Office
Prior art keywords
valve
drinking
circulation
water system
service water
Prior art date
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Application number
EP19210407.3A
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German (de)
English (en)
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EP3660234A1 (fr
Inventor
Robin DIEKMANN
Thomas Spöler
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.)
Gebr Kemper GmbH and Co KG
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Gebr Kemper GmbH and Co KG
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Publication of EP3660234A1 publication Critical patent/EP3660234A1/fr
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    • 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
    • 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
    • E03B7/07—Arrangement of devices, e.g. filters, flow controls, measuring devices, siphons or valves, in the pipe systems
    • E03B7/078—Combined units with different devices; Arrangement of different devices with respect to each other

Definitions

  • the present invention relates to a drinking and industrial water system with the preamble features of claim 1.
  • a drinking and industrial water system is off DE 20 2015 006 366 U1 known.
  • the drinking and service water system off DE 20 2015 006 366 U1 has a riser, several floors and a downpipe, with several consumers connected to each floor.
  • a supply line can feed fresh water into both the riser and the downcomer to supply the consumer. In the event of a tapping process, a consumer can therefore draw water from both directions.
  • a circulation line initiates a circulation flow in the floor strands, which flows from the riser in the direction of the downpipe.
  • a regulating valve is arranged at the end facing the downpipe, in which a thermostatic element controlled by the water temperature is installed as an actuator for a valve body which cooperates with a valve seat to regulate the circulation flow.
  • the circulation is usually used to keep water at the desired water temperature close to the consumer. This is because hot or cold water standing in the line would cool down or heat up, so that the water at the desired temperature is not initially dispensed when the consumer is drawn. Standing water is also hygienically questionable.
  • a bypass for bridging the valve seat, in which a non-return closing element is mounted, is recessed in the valve housing of the regulating valve.
  • the non-return closing element is pretensioned in the direction of the circulation flow, so that the circulation flow is regulated solely by the thermostatic element.
  • the non-return closure element opens against the direction of the circulation flow.
  • the thermostat element is usually set in such a way that the circulation flow is low. Nevertheless, with the help of the non-return closing element, the consumers can also be supplied with sufficient water via the downpipe when consumption is high.
  • the present invention seeks to specify a drinking and service water system which, in an improved manner, meets the technical requirements that are made possible by the provision of germ-free drinking and service water with permanent exchange of water are provided in appropriate supply facilities.
  • the present invention specifies a drinking and service water system with the features of claim 1.
  • This drinking and service water system has a connection to the public water supply network, via which at least one supply line leading to at least one consumer is fed with fresh water.
  • the drinking and service water system also has a circulation line and a circulation pump arranged in the circulation line for returning unused water.
  • the circulation line usually joins the supply line again. In this way, the water in the drinking and service water system can be circulated when the consumer fails to tap and the formation of germs from standing water can be avoided.
  • a water heater, a cooling unit or a heat exchanger is usually arranged in the circulation manifold or assigned to the opening into the supply line. Cold water is usually cooled to temperatures below 25 ° C and hot water is heated to temperatures above 55 ° in order to avoid the formation of nuclei, which is favored in an intermediate temperature range.
  • the circulation flow is usually less than a supply flow triggered by a tapping process of a consumer.
  • the circulation line preferably has a nominal diameter that is smaller, for example DN 15 or smaller, than the nominal diameter of the supply line.
  • the supply line usually has a nominal diameter of DN 20 or larger.
  • a regulating valve is provided in the circulation line, which has an adjusting element controlled by the water temperature as an actuator for a valve body of the regulating valve. As a rule, an expansion element is provided as the adjusting element.
  • a check valve is provided to bypass the valve seat. The check valve can be integrated into the regulating valve and arranged in a bypass formed in the housing of the regulating valve.
  • the regulating valve and the check valve can be designed as separate valves, in particular with a separate valve housing, and can be installed in parallel in the drinking and service water system.
  • the regulating valve and the check valve are followed by a flushing valve for draining water from the drinking and service water system.
  • the check valve is designed in such a way that it opens in the direction of the circulation flow initiated by the circulation pump.
  • the present invention particularly takes a drinking and service water system with cold water into view. Most of the time, water from the water is controlled by time, consumption or temperature The drinking and service water system is drained via the flush valve and replaced with fresh water from the public water supply network. With the solution according to the invention, it can be ensured that a sufficiently large volume flow flows through the circulation line during a flushing process, ie when the flushing valve is open, that is to say that a sufficient amount of water can be exchanged. In some hot water circulation systems, too, it may be desirable to drain water from the system. In this respect, the present invention is not limited to a cold water system.
  • the thermal control element of the regulating valve is therefore usually set in such a way that water which is close to this temperature range or in this temperature range regulates a relatively high Kv value so that the circulation flow is kept as high as possible at critical temperatures in order to exchange this water as quickly as possible .
  • the thermal control element usually regulates a relatively small Kv value for the circulation flow.
  • the regulating valve usually has a valve housing, which can be designed as a cast metal component or as a plastic part.
  • the valve body of the regulating valve usually interacts with a flow opening between the inlet and outlet channels of the valve housing in order to regulate the water flow rate through the regulating valve.
  • An adjusting device for presetting the valve body is also usually provided.
  • Such a thermally controlled valve is, for example, from EP 1 372 054 A1 or the DE 100 56 715 A1 known.
  • the check valve opens in the direction of flow of a circulation flow initiated by the circulation pump.
  • the direction of flow of a flushing flow and of a flow in the case of a tapping process by a consumer coincide with the flow direction of the circulation flow.
  • This flow direction can therefore generally be referred to as the flow direction of the drinking and service water system.
  • the check valve usually has a check body which rests against a sealing seat. A flushing flow can push this non-return body away from the sealing seat and thus bypass the valve seat of the regulating valve.
  • the check valve has a prestressing element which is prestressed against the circulation flow and / or is electronically controlled.
  • the check valve can preferably be formed by an RV cartridge, ie a check valve cartridge known per se.
  • the non-return body is preferably designed as a spring-loaded valve cap.
  • the RV cartridge is sealingly inserted in a valve housing.
  • the RV cartridge is more preferably latched to the valve housing.
  • the housing of the RV cartridge which interacts with the walls of the valve housing, has protruding latching lugs which engage in locking grooves in the valve housing when the RV cartridge is pushed into the valve housing. In the locked state, the RV cartridge is inserted into the valve housing in a sealing manner and fixed there.
  • the RV cartridge can be installed both in a valve housing of a separately designed check valve and in a common valve housing for the regulating valve and check valve.
  • the non-return body can be controlled electronically.
  • at least one sensor, one actuator and one control unit are usually provided.
  • the sensor usually detects a characteristic variable of the valve combination of regulating valve and check valve, such as the pressure drop (pressure in front of the valve combination - pressure behind the valve combination) or the volume flow through the valve combination.
  • the control unit usually evaluates the signals from the sensor and controls the actuator accordingly.
  • the actuator usually acts directly or indirectly on the non-return body and, as a rule, adjusts it by means of an axial movement relative to the sealing seat. It is also conceivable that the non-return body is spring-loaded and electronically controlled.
  • the non-return body can be held in the closed position in addition to the spring force of the prestressing element, for example by an actuator designed in the manner of a blocking pin, plate or ring. It is possible to keep the non-return body in the closed position even when the water pressure is already sufficient to overcome the spring force of the pretensioning element.
  • the blocking pin, the blocking plate or the blocking ring is usually retracted orthogonally to the axis of the non-return body.
  • the check valve is designed such that it opens at a volume flow through the regulating valve of 7 l / min ⁇ 15%, very preferably ⁇ 10%, particularly preferably ⁇ 5%. "Opening” is usually understood to mean the moment at which the non-return body lifts off from the sealing seat. As a rule, the check valve does not open to the maximum at this volume flow.
  • the check valve is set up in such a way that the check body is at a maximum distance from the sealing seat from a volume flow of 8 l / min ⁇ 15%, very preferably ⁇ 10%, particularly preferably ⁇ 5% Position is held.
  • This position can also be understood as an open position in which the check valve is open to the maximum.
  • the differential pressures which lead to the open position of the non-return body are preferably 50-700 hPa, very preferably 100-500 hPa, particularly preferably 250-300 hPa.
  • the circulation line has several circulation lines which are each assigned to at least one consumer and connected to a common circulation collecting line of the circulation line in which the circulation pump is arranged and connected to the flushing valve.
  • a regulating valve and a check valve are provided at each end of the circulation lines leading into the circulation line.
  • the circulation collecting line can have a larger nominal diameter than the circulation lines.
  • the nominal diameter of the circulation line can correspond to that of the supply line, usually DN 20.
  • Hydraulic balancing of the individual lines is thus guaranteed as follows. Lines in which a relatively large amount of water is drawn usually have water at the desired temperature due to constant exchange. The regulating valve assigned to this branch then sets a relatively low KV value via the thermal control element. On the other hand, strands in which very little water is drawn usually contain more stale water that deviates from the desired water temperature. The regulating valve assigned to this branch then regulates a relatively high KV value for this branch. This ensures that the lines from which little water is drawn are adequately flowed through. At the same time, hydraulic balancing is created in a manner known per se in such a way that consumers are equally supplied with fresh water at the desired temperature regardless of the distance from the connection to the public water supply network.
  • the circulation pump is preferably located downstream of the flushing valve in the direction of flow. More preferably, a backflow preventer is provided in the circulation manifold, which is located downstream of the circulation pump in the direction of flow.
  • the function of the backflow preventer is to prevent fresh water from the connection to the public water supply network from flowing in the opposite direction into the drinking and service water system.
  • the circulation pump can usually be switched off during a flushing process.
  • the electronically controlled check valves are connected in terms of control to a control unit with which the check valves can be controlled independently of one another.
  • the control unit is set up in such a way that the check valves can be opened and closed again in a predetermined sequence.
  • the control unit is connected to the flushing valve in terms of control, so that the control unit initiates a flushing process by opening the flushing valve, regulates it by controlling the check valves and ends it by closing the flushing valve.
  • the control unit is preferably set up to carry out a flushing process in which a water change takes place for the entire drinking and service water system.
  • at least the volume between the connection to the public water supply network and the flush valve is exchanged.
  • the control unit can be set up in such a way that such a water change is repeated periodically with a period of, for example, 72 hours.
  • the drinking and service water system has a flow sensor. This is usually downstream of the regulating valve and the check valve in the direction of flow. If the drinking and service water system according to the invention has several circulation lines, the flow sensor is preferably provided in the circulation collecting line. Usually the flow sensor is assigned to the flushing valve and upstream of it in the direction of flow. In this way, the amount of fluid flushed during a flushing process can be determined.
  • the flow sensor usually sends the measured data to the control unit.
  • the control unit evaluates the measured data, logs them and / or allows them to flow into the control of a flushing process.
  • the flow rate is usually calculated by integrating the continuously measured volume flow over time.
  • the control unit can be set up, for example, in such a way that it closes the flush valve when, after the flush valve has been opened, the calculated flow rate corresponds to the total volume of the drinking and domestic water system.
  • the drinking and service water system has a flow rate limiter.
  • the flow rate limiter is usually located downstream of the flushing valve in the direction of flow.
  • the flow limiter usually prevents an excessive pressure drop in the drinking and service water system during a flushing process.
  • a drain downstream of the flush valve in the flow direction is preferably designed as a free drain.
  • the free flow is usually characterized by the fact that water has a fall section covered in the earth's gravitational field, which either runs directly in the surrounding atmosphere or is atmospherically connected to it. In this way it can be reliably avoided that contaminated or hygienically questionable water is sucked back into the water system in the event of a negative pressure in the water system. In particular, this fulfills the requirements of DIN EN 1717 for the separation of category 1 drinking water from category 5 water.
  • the free drain drains into a sewer.
  • Overflow monitoring is furthermore preferably assigned to the free flow. This usually communicates with the control unit and / or the flow rate limiter so that in the event of an impending overflow at the free outlet, the flow rate from the drinking and service water system can be regulated or reduced. Additionally or alternatively, the overflow monitoring can output a warning signal, for example optically or acoustically.
  • the drinking and service water system has a water heater, a cooling unit or a heat exchanger.
  • a cooling unit or a heat exchanger for cooling the drinking water is usually provided at the mouth of the circulation line or the circulation collecting line in the supply line.
  • the drinking water usually runs through the cooling unit or the heat exchanger for cooling before it gets back into the supply line.
  • a water heater or a heat exchanger for heating the drinking water is usually located downstream of the connection to the public water supply network in the direction of flow.
  • the drinking and service water system according to the present invention also preferably has a filtration system.
  • This is usually connected to the circulation manifold and upstream or downstream of the circulation pump in the direction of flow.
  • the filtration system can be connected to a line section running between the backflow preventer and the heat exchanger (or the water heater or the cooling unit) or to a line section running between the flushing valve and the regulating valve (s).
  • the filtration system is an ultrafiltration system with a membrane, with which macromolecular substances and small particles can be separated from the drinking water.
  • the exclusion limits are usually specified in the form of the NMWC (Nominal Molecular Weight Cut-Off, also MWCO, Molecular Weight Cut Off, unit: Dalton). It is defined as the minimum molecular mass of globular molecules that are 90% retained by the membrane.
  • the ultrafiltration system is operated with the dead-end method, in which the membrane filters the entire volume flow through the circulation manifold. In this way, germs can be filtered out of the drinking water cycle.
  • the drinking water is usually pumped against the membrane at low pressure by the circulation pump, so that any compaction of retained substances is reduced to a minimum.
  • a filter cake (cover layer or fouling) from the separated particles usually accumulates on the membrane.
  • the filter cake increases the filtration resistance and thus the pressure loss across the membrane. It usually has to be removed regularly by backwashing (pumping back of the medium that has already been separated off) and / or chemical cleaning and the filter element thus regenerated.
  • the Figure 1 shows a schematic view of an embodiment of a drinking and service water system of a building not shown in detail.
  • the building's drinking and service water system has a connection 2 to the public water supply network in order to supply the building with fresh water.
  • This fresh water is usually cold water that can be converted into warm drinking or service water within the building or used directly as cold service water for, for example, flushing the toilet or a cold water tap.
  • This in Figure 1 The drinking and service water system shown is designed as a cold water system.
  • a supply line 4 which is designed as a riser, is fed via the connection 2 to the public water supply network.
  • the riser 4 extends over three floors, with a supply line 6 branching off from the riser 4 on each floor.
  • the riser 4 and the supply lines 6 are designed for a nominal diameter of DN 20.
  • a consumer 8 is connected to the supply line 6 in each of the floors.
  • this connection is a T-piece connection 10.
  • the connection is implemented via a flow divider 12.
  • the supply line 6C is looped through between the consumers 8C1, 8C2, 8C3, 8C4.
  • a circulation line 14 is connected to the consumers on each floor.
  • circulation collecting line 16 water which is not consumed by the consumers 8 is passed into a circulation collecting line 16 to which the circulation lines 14 are connected.
  • the circulation manifold 16 is provided on the same floor as the connection 2 to the public water supply network.
  • the circulation collecting line 16 opens into the supply line 4, a heat exchanger 20 being arranged in front of the opening 18.
  • a working medium on the primary side 22 of the heat exchanger 20 absorbs thermal energy from the drinking water which passes through the secondary side 24 of the heat exchanger 20, whereby the drinking water cools down.
  • the drinking water is kept in constant circulation in this closed circuit via a circulation pump 26, which is arranged in the circulation collecting line 16.
  • the direction of the circulation flow is in the Figure 1 highlighted with an arrow Z.
  • a flow direction contrary to this circulation flow is prevented by a backflow preventer 28, which is arranged downstream in the flow direction of the circulation flow initiated by the circulation pump 26 in the circulation collecting line 17.
  • the backflow preventer 28 is followed by an ultrafiltration system 29.
  • the ultrafiltration system 29 contains a membrane which is flown against by the pumping power of the circulation pump 26 and which separates germs or other particles from the drinking water.
  • the ultrafiltration system 29 can alternatively be upstream of the flushing valve 16 in the direction of the circulation flow Z, so that the water drained from the system is also filtered. This means that the wastewater is less polluted.
  • a regulating valve 30, in which an electronically controlled non-return valve is integrated, is arranged at the coupling points of the circulation lines 14 into the circulation collecting line 16.
  • the regulating valves 30 are each connected to a control unit 32 for control purposes. This is likewise connected in terms of control to a flushing valve 34 which is connected upstream of the circulation collecting line 16 in the flow direction of the circulation pump 26.
  • a flushing valve 34 By opening the flush valve 34, water is passed through a flush valve 34 associated free drain 36 can be drained from the drinking and industrial water system. The water covers a free fall distance in the surrounding atmosphere before it flows off via a sewer pipe.
  • An overflow monitor 38 is assigned to the free outlet 36 and a flow sensor 40 is assigned to the flushing valve 34. Both the overflow monitor 38 and the flow sensor 40 communicate with the control unit 32, which evaluates the signals.
  • a flow rate limiter 42 is arranged on the free drain 36.
  • the control unit 32 is also connected in terms of control to the circulation pump 26, so that the pump can be switched off before or during a flushing process.
  • the control unit 32 initiates such a flushing process by opening the flushing valve 34.
  • the regulating valves 30 contain a non-return valve which, however, is only opened by the control unit 32 when a minimum volume flow of at least approx. 7 l / min is reached. In this way, sufficient water exchange can be guaranteed during a rinsing process.
  • the check valve or the control unit 32 is designed in such a way that a circulation flow initiated by the circulation pump 26 does not open the check valve.
  • a thermal valve with an expansion element is also provided, which regulates a flow opening through the regulating valve depending on the water temperature, the details of which are also provided Figure 2 can be seen, which, however, shows a regulating valve 43 with a spring-loaded check valve 44 integrated in a bypass.
  • the regulating valve 43 has a valve housing 48 with an inlet connection 50 and an outlet connection 52.
  • the direction of circulation is indicated by the arrow Z. This corresponds to the direction of flow during a flushing process.
  • the outer marking points in this direction, but cannot be seen in the sectional view.
  • the valve housing 48 forms a socket-shaped receptacle 54 for a valve insert identified by reference numeral 56.
  • the receptacle 54 is formed by an upper valve part which is screwed with its external thread into an internal thread of the valve housing 48.
  • the valve insert 56 has a receptacle for an expansion element 58 of a thermostat regulator 60.
  • the expansion element 58 acts on a plate 62 which is held in a pretensioned manner against the force of a spring 64 in the direction of the expansion element 58.
  • a tappet 66 which carries an actuator 68, is coupled to the plate 62.
  • the valve housing 48 also forms a connection piece for screwing together an emptying plug 74 in a sealing manner. Furthermore, a shut-off valve 76 is provided, which can be manually operated in order to manually shut off the regulating valve 70 by placing the shut-off valve 76 against a straight seat 78.
  • the valve housing 48 forms a valve seat identified by reference numeral 80, which leaves a flow opening 82 free between it and the actuator 68. In the Figures 3 and 4 this throughflow opening 82 enables a circulation volume flow.
  • the valve housing 48 also forms a bypass 84 as an extension of the connection 52, which bypass is formed as a through-hole between the tappet 66 and the connection 52.
  • a RV cartridge 86 is provided with a valve cap 88 held in a spring-loaded manner. The RV cartridge 86 is sealingly inserted into the bypass 84.
  • the valve housing 48 forms a circumferential groove in which locking projections 90 of the RV cartridge 86 are engaged in order to lock the RV cartridge 86, which rests on the opposite side against an annular projection formed by the valve housing 48.
  • the RV cartridge 86 is sealed on the outside of the valve housing 48.
  • the RV cartridge 86 contains the check valve 44.
  • the RV valve 44 closes the bypass 84 if a minimum volume system is not reached due to the spring preload.
  • the RV cartridge 86 closes the bypass 84 due to the spring preload and the water pressure in combination with the geometry of the valve cap 88.
  • the RV valve 44 opens and lets a flushing flow S through. This flushing flow S essentially bridges the throughflow opening 82.
  • the regulating valve after Figure 2 is self-sufficient, ie cannot be used electronically controlled.

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Hydrology & Water Resources (AREA)
  • Public Health (AREA)
  • Water Supply & Treatment (AREA)
  • Devices For Dispensing Beverages (AREA)
  • Check Valves (AREA)

Claims (14)

  1. Système d'eau potable et d'eau sanitaire avec un raccordement (2) au réseau public d'alimentation en eau, par l'intermédiaire duquel au moins une conduite d'alimentation (4, 6) conduisant à au moins un consommateur (8) est alimentée en eau douce,
    une vanne de vidange (34) située en aval du consommateur (8) dans le sens du débit et permettant d'évacuer l'eau hors du système d'eau potable et d'eau sanitaire, une conduite de circulation (14, 16) et une pompe de circulation (26) agencée dans la conduite de circulation (14, 16) et permettant le recyclage de l'eau non utilisée, une vanne de régulation (30, 43) prévue dans la conduite de circulation (14, 16) et agencée entre le consommateur (8) et la vanne de vidange (34) et présentant un élément de réglage (58) commandé par la température de l'eau et faisant office d'actionneur (68) pour un corps de vanne de la vanne de régulation (30, 43) qui coopère avec un siège de vanne (80),
    caractérisé par
    un clapet anti-retour (44) permettant de couvrir le siège de vanne, qui s'ouvre dans le sens d'un flux de circulation (Z) initié par la pompe de circulation (26).
  2. Système d'eau potable et d'eau sanitaire selon la revendication 1, caractérisé en ce que le clapet anti-retour (44) s'ouvre pour un débit volumique à travers la vanne de régulation (30, 43) de 7 l/min ± 15 %.
  3. Système d'eau potable et d'eau sanitaire selon l'une quelconque des revendications 1 ou 2, caractérisé en ce que le clapet anti-retour (44) est conçu de telle manière qu'il est maintenu en position ouverte à partir d'un débit volumique de 8 l/min ± 15 % à travers la vanne de régulation (30, 43).
  4. Système d'eau potable et d'eau sanitaire selon l'une quelconque des revendications précédentes, caractérisé en ce que le clapet anti-retour (44) présente un élément de précontrainte qui est précontraint à l'encontre du flux de circulation (Z).
  5. Système d'eau potable et d'eau sanitaire selon la revendication 4, caractérisé en ce que la précontrainte de l'élément de précontrainte peut être réglée.
  6. Système d'eau potable et d'eau sanitaire selon l'une quelconque des revendications précédentes, caractérisé en ce que le clapet anti-retour (44) peut être commandé électroniquement par une unité de commande (32).
  7. Système d'eau potable et d'eau sanitaire selon l'une quelconque des revendications précédentes, caractérisé en ce que la conduite de circulation (14, 16) présente plusieurs tuyaux de circulation (14) respectivement associés à au moins un consommateur (8) et reliés à une conduite collectrice de circulation (16) commune, au sein de laquelle est agencée la pompe de circulation (26) et à laquelle est raccordée la vanne de vidange (34), de la conduite de circulation, et en ce que respectivement une vanne de régulation (30, 43) et un clapet anti-retour (44) sont prévus au niveau de l'extrémité, menant dans la conduite collectrice de circulation (16), des tuyaux de circulation (14).
  8. Système d'eau potable et d'eau sanitaire selon la revendication 7, caractérisé en ce que la pompe de circulation (26) est située en aval de la vanne de vidange (34) dans le sens du débit et en ce qu'un clapet d'aspiration (28) situé en aval de la pompe de circulation (26) dans le sens du débit est prévu dans la conduite collectrice de circulation (16).
  9. Système d'eau potable et d'eau sanitaire selon les revendications 6 et 7 ou selon les revendications 6 et 8, caractérisé en ce que les clapets anti-retour (44) peuvent être commandés indépendamment les uns des autres par l'unité de commande (32).
  10. Système d'eau potable et d'eau sanitaire selon l'une quelconque des revendications précédentes, caractérisé par un capteur de débit (40).
  11. Système d'eau potable et d'eau sanitaire selon l'une quelconque des revendications précédentes, caractérisé par un limiteur de débit (42) associé à la vanne de vidange (34).
  12. Système d'eau potable et d'eau sanitaire selon l'une quelconque des revendications précédentes, caractérisé par un drain libre (36) associé à la vanne de vidange (34).
  13. Système d'eau potable et d'eau sanitaire selon l'une quelconque des revendications précédentes, caractérisé par un contrôleur de débordement (38) prévu au niveau du drain libre (36).
  14. Système d'eau potable et d'eau sanitaire selon l'une quelconque des revendications précédentes, caractérisé par un échangeur de chaleur (20).
EP19210407.3A 2018-11-30 2019-11-20 Système d'eau potable et d'eau sanitaire Active EP3660234B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE202018005578.6U DE202018005578U1 (de) 2018-11-30 2018-11-30 Trink- und Brauchwassersystem

Publications (2)

Publication Number Publication Date
EP3660234A1 EP3660234A1 (fr) 2020-06-03
EP3660234B1 true EP3660234B1 (fr) 2021-03-10

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DE (2) DE202018005578U1 (fr)
DK (1) DK3660234T3 (fr)

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Publication number Priority date Publication date Assignee Title
LU102008B1 (de) * 2020-08-21 2022-02-21 Wilo Se Kompaktbaueinheit für eine Wasserzirkulation
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DK3660234T3 (da) 2021-06-07
DE202018005578U1 (de) 2020-03-04
DE102019217903A1 (de) 2020-06-04

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