EP2233648A1 - Système de boisson et d'eau sanitaire - Google Patents

Système de boisson et d'eau sanitaire Download PDF

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Publication number
EP2233648A1
EP2233648A1 EP10002381A EP10002381A EP2233648A1 EP 2233648 A1 EP2233648 A1 EP 2233648A1 EP 10002381 A EP10002381 A EP 10002381A EP 10002381 A EP10002381 A EP 10002381A EP 2233648 A1 EP2233648 A1 EP 2233648A1
Authority
EP
European Patent Office
Prior art keywords
flow
drinking
water system
cross
supply line
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP10002381A
Other languages
German (de)
English (en)
Other versions
EP2233648B1 (fr
Inventor
Roland Blumenthal
Markus Hess
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
Original Assignee
Gebr Kemper GmbH and Co KG
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 Gebr Kemper GmbH and Co KG filed Critical Gebr Kemper GmbH and Co KG
Publication of EP2233648A1 publication Critical patent/EP2233648A1/fr
Application granted granted Critical
Publication of EP2233648B1 publication Critical patent/EP2233648B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • E03B7/09—Component parts or accessories
    • 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
    • E03B7/045—Domestic or like local pipe systems diverting initially cold water in warm water supply
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • 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
    • F24D17/00—Domestic hot-water supply systems
    • F24D17/0078—Recirculation systems
    • F24D17/0084—Coaxial tubings
    • 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 a drinking or service water system with a transfer point from a public supply network and at least one supply line for the supply of water and at least one loop leading to at least one consumer.
  • This ring line is connected to the supply line via inlet and outlet openings, wherein a cross-sectional constriction is provided in the supply line between the extraction and threading openings.
  • the cross-sectional constriction is designed such that when flowing through the supply line in the loop line a flow is effected, due to the Venturi effect.
  • the drinking or service water system according to the present invention may be a cold or a hot water system.
  • Modern hot water systems are formed with a circulation, which ensures that hot water heated by a heater is continuously circulated in the lines leading to the consumer, so that hot water is discharged immediately at a consumer water removal and germination of the system, for example by Legionella is avoided.
  • the circulation prevents the cooling of hot water in the line.
  • hot water circulation systems the circulation leading away from the consumer and connecting them to the heater or a boiler of the heater with a smaller diameter than the supply line is formed.
  • a generic drinking or service water system is for example from the DE 10 2006 017 807 known to the present applicant.
  • several ring lines go from a supply line, which communicates with the interposition of a motor-driven valve with a purge line leading to a discharge point to the dirty water line. With this configuration, it is possible to flush a supply line to dissipate stagnant water there.
  • the present invention has for its object to provide a solution to the above problems.
  • the above-mentioned drinking or service water system is further developed by means with which the ratio between a ring volume flow through the loop and a main volume flow through the supply line between the Ausfädelö réelle and the threading depending on the temperature of the flow in the loop is variable ,
  • a temperature in the loop preferably a temperature difference, is first used between the flow in the loop and the temperature of the (initially standing) volume of water in the loop to the position of the agent.
  • the temperature of the volume flow in the loop is measured. This is preferably done at a location just before the union of the two volume flows in the supply line. Alternatively, it is also possible to measure the temperature of the mixed volume flow since, in the cases considered here, the volume flow in the ring line will generally always be greater than the volume flow in the supply line. This means changes due to the measured temperature, the volume fractions between the ring flow on the one hand and the main flow on the other.
  • the temperature is preferably compared with a comparison value.
  • a comparison value can be formed by determining the temperature of the main flow. A decreasing temperature difference indicates an increasing flow through the loop. In the case of a hot water system, a low temperature in the ring line indicates that the flow through the loop should be increased.
  • a corresponding control characteristic can be set by a control device, which acts on the means for changing the volume flow conditions and processes, for example, the measured value of a temperature sensor, which determines the temperature of the guided water in the loop and provides an actuating element, with the flow resistance of the main flow and / or the ring flow is changeable.
  • the control device can access a stored there setpoint for the temperature of the ring flow.
  • the adjusting element can be, for example, a throttle element arranged in the ring conduit, by means of which the flow resistance in the ring conduit is reduced.
  • a corresponding throttle element may also be assigned to the main flow.
  • a means for varying the cross-sectional area of the cross-sectional constriction in dependence on the temperature difference is provided.
  • This means can cooperate with the aforementioned control device and be adjustable by this.
  • the means is controlled by an expansion element which is exposed to the temperature of the ring flow in the region of the threading opening and coupled to the means for varying the cross-sectional area.
  • the coupling is preferably carried out such that the change in length of the expansion element leads to a position of the agent, which brings a change in the volume flow conditions with it.
  • a linkage can be provided, which transmits the stretching of the expansion element to the means for the position of the same.
  • the expansion element itself may also be part of a provided in the loop or in the main throttle element, which changes the flow resistance in the loop.
  • the expansion element may also be provided in the manner of a conventional thermostatic valve and with a valve body, which extends to the cross-sectional constriction in order to change the cross-sectional area depending on temperature.
  • a throttle element configured in such a way can also change a leakage flow, which is ensured via the cross-sectional constriction in the main flow direction even if only a very small main flow is present and a means for changing the cross-sectional constriction with its sealing surface substantially sealing against a counter surface at the cross-sectional constriction is applied.
  • a movable throttle element which is movable relative to the cross-sectional constriction and is held by a guide element which is inserted into a main flow leading pipe.
  • the dimension of the guide element and / or the throttle element due to the change in length due to the temperature is variable so that due to the position of the throttle element, the volume flow of the ring flow increases at the expense of the volume flow of the main flow.
  • the guide element and / or the throttle element are made of a material which has a coefficient of thermal expansion which leads within the conceivable temperature differences to a sufficient change in length such that a significant change in the pressure difference in the region of the cross-sectional constriction can be effected.
  • bimetals or materials with memory effect in the guide element or the throttle element may be installed, which optionally cause a sufficient change in the effective length of the guide element and the throttle element via mechanical reinforcing elements.
  • Effective change in length is intended to be based on the fact that the temperature-induced change in length of the guide element and / or throttle element is significant and useful only insofar as it leads to a change in the pressure difference.
  • a biasing means which separates the throttle element from the guide element and which is arranged such that it is acted on by the annular flow flowing through the threading opening and its restoring force can be changed on account of the temperature of the annular flow.
  • Conceivable embodiments of such a biasing means include, for example, springs made of plastic, which are stiffer in the case of a hot water system and when exposed to a relatively cold annular flow and thus cause a higher biasing force than when exposed to warm water, in which the spring element is relatively soft.
  • a fitting housing which forms the Einfädelö réelle and the Ausfädelö réelle and connections for the supply line and receives an insert in it, which forms the guide element and the cross-sectional constriction.
  • the throttle element is held in an initial position in the region of the cross-sectional constriction to form a leakage flow gap.
  • the cross-sectional constriction is formed by a cone.
  • the throttle element forms a cone counter surface, which cooperates with a conical surface of the cone.
  • the throttle element is preferably held by a spring element in the starting position.
  • the means for changing the volume flow conditions comprises a guide element which holds the throttle element movable.
  • This guide element and the throttle element are preferably formed coaxially with each other.
  • the longitudinal axis of the guide element and the longitudinal axis of the throttle element are preferably aligned with the longitudinal axis of the strand.
  • locking means are provided on the outer periphery of the insert, with which the insert part are held in a the inlet and outlet openings and the intermediate Einfädelötician forming fitting housing of the connection fitting.
  • the locking means is preferably formed by a plurality of circumferentially spaced apart of the insert part locking lugs.
  • On the inner circumferential surface of the fitting housing locking grooves are preferably formed in this development, in which engage the locking lugs.
  • the guide element extends in the region of the threading opening and has on its outer wall at least one ring line flow passage penetrating the guide element.
  • the throttle element has a continuous bore extending in its longitudinal direction, through which an inner tube of a tube-in-tube circulation line is feasible.
  • the throttle element is preferably guided displaceably on the inner tube.
  • the insert on at least one of its front ends with a plurality of the outer peripheral surface of the insert part predetermining and extending in the axial direction supporting webs whose respective ends are funnel-shaped.
  • FIGS. 1 to 2 show an insert 2, which may be formed of metal or plastic and which is formed with a cylindrical outer peripheral surface substantially corresponding to a cylindrical inner peripheral surface of a valve body 4.
  • the in FIG. 1 drawn arrow H illustrates the flow direction of a flowing through a dashed lines supply line 1 main stream. A flowing through a ring, not shown ring flow ring is marked with reference R.
  • FIGS. 3 to 5 at the front end in the flow direction of the insert part 2 a plurality of circumferentially distributed webs 6 are provided, which continue the cylindrical outer peripheral surface and are funnel-shaped inwardly directed at its free end.
  • a corresponding embodiment also has the end remote from the flow. There, the webs are marked with reference numeral 8.
  • This area of the insert part 2 forms a guide element 10 for a throttle element 12.
  • the insert part 2 Between the front webs 6 and the rear webs 8, the insert part 2 a ring portion 14, the inner peripheral surface of which forms a conical surface 16 which cooperates with a conical surface 18 of the throttle element 12.
  • a nozzle cross-section formed by the ring section which forms a cross-sectional constriction V with respect to the main flow H, is projected radially inwardly from the webs 6.
  • the nozzle has at its narrowest point a larger diameter than the inwardly drawn webs 6, which form a stop for the throttle element 1.
  • a plurality of locking lugs 20 are formed on the outer peripheral surface, which engage in locking grooves 22, which are recessed on the inner peripheral surface of the valve body 4.
  • a ring 24 is provided downstream the latching lugs 20 and held by each second of the rear webs 8, which a ring 24 is provided, which comprises the throttle element 12 and circumferentially leads, and forms a support surface 26 for a spring element 28 which extends between this ring 24 and an annular surface 30 of the throttle element 12th extends, which adjoins in the flow direction immediately behind the conical mating surface 18 of the throttle element 12.
  • the tapered inwardly tapered free ends of the webs 6, 8 form in the embodiment shown a funnel-shaped opening, the penetration of a in the FIGS. 4 and 5 shown inner tube 32 of an inliner facilitates.
  • This funnel-shaped opening has a diameter approximately corresponding to the outer diameter of the inner tube 32.
  • the inner diameter of the nozzle at its narrowest point is about 15 to 25% larger than the diameter of the funnel-shaped opening.
  • the inner tube 32 passes through a central bore of the throttle element 12. This is presently guided by the inner peripheral surface of the ring 24 and in the flow direction S adjoining webs. Selected webs can engage in axial grooves, which can be formed on the outer peripheral surface of the throttle element 12, whereby an anti-rotation of the throttle element 12 is formed.
  • a leakage flow gap remains between the adjacent conical surfaces 16, 18, so that at a pressure difference acting over the maximum cross-sectional constriction even with adjoining conical surfaces 16, 18 a certain leakage flow L is possible.
  • the cross-sectional constriction V can also be such that with minimum pressure difference, the main flow H is cut off and the remaining volume flow flows solely through the loop.
  • the throttle element 14 With increasing pressure difference across the cross-sectional constriction, the throttle element 14 is urged against the force of the spring element 28 in the flow direction to the rear. As a result, the cross-sectional constriction V is increased until the throttle element abuts against the front end of the guide formed by the guide 10. This is in the present case formed by hook-shaped radial projections 40 of the rear webs 8.
  • the annular flow R sweeps over the spring element 28 in the region of the threading opening.
  • an intermixing of water of the main flow with water of the ring flow R results in an effective ring flow. It is assumed that this is a Hot water system is and that the ring flow is insufficient to keep the temperature of the ring flow at a sufficiently high level. Nevertheless, the ring volume flow in such a case is greater than the main volume flow. This leads to a relatively cold annular flow, which is mixed in the region of the threading 34 with the main flow H. Due to this lower temperature, the rigidity of the spring element 28 increases.
  • the spring thus shows a higher spring force, which leads to an increased position of the throttle element 12 in the direction of the annular portion 14, which causes the cross-sectional constriction.
  • the throttle function is increased by the throttle element 12. This results in an increasing volume flow through the ring line R at the expense of the main flow H. As a result, the loop is flushed through more and the temperature rises in the loop.
  • the portion of the throttle element 12 facing away from the ring portion 14 may be guided in a substantially closed sleeve, in which a spring element is arranged and which carries the respective webs 8 for the radial support of the insert part 12.
  • the interior of the sleeve may be open laterally to the threading opening 34, so that the interior of the sleeve is only flowed through by the annular flow, whereas the main flow H flows past the outside of the sleeve.
  • the present invention is not limited to an application with an internal circulation pipe.
  • a return line can be completely dispensed with for the realization of the present invention.
  • the supply line may be provided at its end with a purge line of smaller diameter, which can be actuated via a motor-operated valve to dissipate stagnant water in the supply line.
  • a purge line of smaller diameter which can be actuated via a motor-operated valve to dissipate stagnant water in the supply line.
  • each in the DE 10 2006 017 807 described drinking and service water system There are disclosed different configurations of corresponding systems with ring conduits and valves for dividing the flow, to guide a partial flow through a loop and the remaining main flow through a supply line or a strand.
  • some measuring points M1 and M2 are shown. At these measuring points, for example, a measuring sensor can be arranged, which measures the actual temperature of the water at this point.
  • the temperature sensor M1 measures only the temperature of the water in the loop.
  • a temperature sensor located at M2 measures a temperature of the water mixture consisting of the main flow H and the ring flow R.
  • a temperature sensor provided at M1 or M2 is preferably coupled to a control device. There, the measurement signal of the temperature sensor is evaluated and compared with a setpoint of the temperature of the main flow. In the case of a hot water system, this is the set circulation temperature with possible need for hot water. By comparing this temperature with the measured temperature, a temperature difference is determined which can be used for the position of the throttle element 12.
  • the throttle element is assigned in this case controlled by the control device actuating means.

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  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Public Health (AREA)
  • Water Supply & Treatment (AREA)
  • Health & Medical Sciences (AREA)
  • Temperature-Responsive Valves (AREA)
  • Quick-Acting Or Multi-Walled Pipe Joints (AREA)
EP10002381.1A 2009-03-09 2010-03-08 Système de boisson et d'eau sanitaire Active EP2233648B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE202009003135U DE202009003135U1 (de) 2009-03-09 2009-03-09 Trink- oder Brauchwassersystem

Publications (2)

Publication Number Publication Date
EP2233648A1 true EP2233648A1 (fr) 2010-09-29
EP2233648B1 EP2233648B1 (fr) 2018-10-31

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ID=42235430

Family Applications (1)

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EP10002381.1A Active EP2233648B1 (fr) 2009-03-09 2010-03-08 Système de boisson et d'eau sanitaire

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EP (1) EP2233648B1 (fr)
DE (1) DE202009003135U1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202011002327U1 (de) 2011-02-03 2012-05-08 Gebr. Kemper Gmbh + Co. Kg Metallwerke Trink- und Brauchwassersystem
CN110206914A (zh) * 2019-07-02 2019-09-06 艾碧匹(上海)流体控制有限公司 动态循环阀
EP4056768A1 (fr) 2021-03-11 2022-09-14 Gebr. Kemper GmbH + Co. KG Installation d'eau potable
CN115076480A (zh) * 2022-05-07 2022-09-20 北京机械设备研究所 一种流量可调的输液装置

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1681515A1 (fr) * 2005-01-13 2006-07-19 JRG Gunzenhauser AG Dispositif et méthode pour contrôler la circulation dans une installation de circulation d'eau chaude
EP1845207A1 (fr) * 2006-04-13 2007-10-17 Gebr. Kemper GmbH + Co. KG Metallwerke Système d'eau potable et usée tout comme son procédé de fonctionnement
DE202008003044U1 (de) 2008-03-04 2008-05-08 Gebr. Kemper Gmbh + Co. Kg Anschlussarmatur
DE202007009832U1 (de) * 2007-07-12 2008-11-13 Gebr. Kemper Gmbh & Co. Kg Metallwerke Anschlussarmatur

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3919074A1 (de) * 1989-06-10 1991-01-10 Duerr Gmbh & Co Reinstwasserversorgungssystem
US5622203A (en) * 1995-10-03 1997-04-22 Moen Incorporated Hot water circulation apparatus with adjustable venturi
WO2002103123A2 (fr) * 2001-04-30 2002-12-27 Terence John Andrews Systeme de soupape adapte a differents modes
DE20300715U1 (de) * 2003-01-17 2003-05-08 Cetetherm Wärmetauschersysteme GmbH, 22113 Hamburg Warmwasserbereitungsanlage

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1681515A1 (fr) * 2005-01-13 2006-07-19 JRG Gunzenhauser AG Dispositif et méthode pour contrôler la circulation dans une installation de circulation d'eau chaude
EP1845207A1 (fr) * 2006-04-13 2007-10-17 Gebr. Kemper GmbH + Co. KG Metallwerke Système d'eau potable et usée tout comme son procédé de fonctionnement
DE102006017807A1 (de) 2006-04-13 2007-10-18 Gebr. Kemper Gmbh & Co. Kg Metallwerke Trink- und Brauchwassersystem sowie Verfahren zum Betrieb eines solchen Systems
DE202007009832U1 (de) * 2007-07-12 2008-11-13 Gebr. Kemper Gmbh & Co. Kg Metallwerke Anschlussarmatur
DE202008003044U1 (de) 2008-03-04 2008-05-08 Gebr. Kemper Gmbh + Co. Kg Anschlussarmatur

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202011002327U1 (de) 2011-02-03 2012-05-08 Gebr. Kemper Gmbh + Co. Kg Metallwerke Trink- und Brauchwassersystem
EP2484839A2 (fr) 2011-02-03 2012-08-08 Gebr. Kemper GmbH + Co. KG Metallwerke Système d'eau potable et d'eaux usées ainsi que procédé de montage de celui-ci
EP2484839A3 (fr) * 2011-02-03 2015-07-08 Gebr. Kemper GmbH + Co. KG Metallwerke Système d'eau potable et d'eaux usées ainsi que procédé de montage de celui-ci
CN110206914A (zh) * 2019-07-02 2019-09-06 艾碧匹(上海)流体控制有限公司 动态循环阀
EP4056768A1 (fr) 2021-03-11 2022-09-14 Gebr. Kemper GmbH + Co. KG Installation d'eau potable
CN115076480A (zh) * 2022-05-07 2022-09-20 北京机械设备研究所 一种流量可调的输液装置
CN115076480B (zh) * 2022-05-07 2024-04-09 北京机械设备研究所 一种流量可调的输液装置

Also Published As

Publication number Publication date
DE202009003135U1 (de) 2010-09-02
EP2233648B1 (fr) 2018-10-31

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