EP1681515A1 - Dispositif et méthode pour contrôler la circulation dans une installation de circulation d'eau chaude - Google Patents

Dispositif et méthode pour contrôler la circulation dans une installation de circulation d'eau chaude Download PDF

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Publication number
EP1681515A1
EP1681515A1 EP05405706A EP05405706A EP1681515A1 EP 1681515 A1 EP1681515 A1 EP 1681515A1 EP 05405706 A EP05405706 A EP 05405706A EP 05405706 A EP05405706 A EP 05405706A EP 1681515 A1 EP1681515 A1 EP 1681515A1
Authority
EP
European Patent Office
Prior art keywords
control
strand
temperature
hot water
flow
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
EP05405706A
Other languages
German (de)
English (en)
Other versions
EP1681515B1 (fr
Inventor
Kurt Bürli
Marcel Lüscher
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.)
Georg Fischer JRG AG
Original Assignee
JRG Gunzenhauser AG
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 JRG Gunzenhauser AG filed Critical JRG Gunzenhauser AG
Publication of EP1681515A1 publication Critical patent/EP1681515A1/fr
Application granted granted Critical
Publication of EP1681515B1 publication Critical patent/EP1681515B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • 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 invention relates to a method for circulation control in hot water circuits for buildings with personal use and therefore with the requirement of hot water, with drinking water quality.
  • buildings such as larger dwellings, hotels, administrative buildings, offices, hospitals or retirement homes
  • hot water can be circulated in a regulated manner, whereby not only comfort but also water consumption should be reduced.
  • thermal disinfection is therefore used in hot water circuits.
  • the circulation is periodically rinsed with heated water of elevated temperature, e.g. from 80 ° C.
  • heated water of elevated temperature e.g. from 80 ° C.
  • the subject of the present invention is a circulation control even with a large number of strands of different lengths, which regulates the hydraulic balancing at one or more temperatures.
  • thermostatic control valves work only conditionally reliable, which occurs especially in a larger number of strands by the mutual influence of changing flow rates. This can lead to the provision of hot water in the defined temperature range at sampling points within the circuit is no longer guaranteed and also occur in the thermal disinfection greater uncertainties, whether in all places in the network was actually flushed with the increased target treatment temperature.
  • FIG. 1 shows the scheme of a hot water supply network with respective thermostatic control valve in the strand return according to the prior art.
  • a thermostatic control valve has been sold successfully for about 10 years by the applicant under the trade name JRGUTHERM®.
  • the supply network is based on a hot water generator 1 , which is supplied via a feed line cold water KW and hot water WW provides.
  • a supply main line 10 extends , which branches off as a flow line 11 in the individual strands S1-S5 and there usually divided into several strand outlets 13 .
  • Each flow line 11 passes behind the last strand outlet 13 in a return strand 12 , in each of which, for example, a thermostatic regulating valve 9 is seated.
  • the invention has the object to provide a method and an associated device that guarantee a consistent hot water supply in the specified temperature tolerance even with a variety of different strands, everywhere and also in the Carry out the thermal disinfection in the hot water circuit to ensure flushing with the prescribed treatment temperature controlled in all strands of the network.
  • the temperature set point is transmitted to each control box by a central control via a first signal line or a wireless interface.
  • Each control box can be given an individual temperature setpoint.
  • Control in the hot water circuit may be with the plurality of strands at multiple temperature levels, e.g. with 57 ° C for normal operation and 80 ° C for a temporary phase of thermal disinfection.
  • the hysteresis in the control behavior is set for each string, and the central control is directed by a higher-level building management system.
  • the control of the single string can also be operated in the self-learning cycle.
  • LOG files are recorded for process control.
  • further parameters such as e.g. Flow rate and pH, recorded.
  • the above method can be carried out with the following device: In each return line, a functional unit with a 2/2-way valve, a control box with a temperature sensor and a valve control is installed.
  • the control box is intended to guide the control with a predetermined temperature setpoint.
  • the valve control acts as a result of the comparison between the actual and setpoint with Tolerance exceeded negative deviation on an actuator of the 2/2-way valve to open the flow through the return line.
  • the control circuits of the individual strands are closed in principle in each case.
  • Each control box is connected via a first signal line or a wireless interface to a central control, in particular for the transmission of the predetermined temperature setpoint to the control box and for the return of the process flow to the central control.
  • Each control box can be set to an individual temperature setpoint.
  • the central control is to guide the control in the hot water circuit with the Variety of strands designed for multiple temperature levels, eg 57 ° C for normal operation and 80 ° C for a temporary phase of thermal disinfection.
  • the hysteresis in the control behavior can be set for each string.
  • the central controller is connected to a superordinate building management system and has a display, first and second function keys, a control system connection and a bus connection.
  • the central controller In the single strand in addition to the temperature sensor other sensors for e.g. Flow rate and pH, arranged, the results of which flow into a complex process control.
  • a fitting that can be installed in the return line is provided with connecting pieces on both sides.
  • a transverse to the flow direction gutter to the barrier is arranged, which may have an axial web passage.
  • On one longitudinal side in the pipe wall of the fitting on the one hand of the gutter an outlet and on the other hand of the gutter an inlet exist.
  • the outlet and inlet are closed or released by the 2/2-way valve.
  • a regulating element is inserted into the gutter, with which the opening width of the web passage can be adjusted.
  • the supply network also starts from a hot water generator 1 to which cold water KW is supplied via a feed line in order to generate hot water WW .
  • the main flow line 10 first passes through a mixed water station 2, extends from there on and branches off as a flow line 11 into the individual strands S1-S5 , where there are usually several strand outlets 13 .
  • each flow line 11 merges into a return line 12 , in which now a functional unit 3 - consisting of a 2/2-way valve 30, a control box 36 with a temperature sensor 37 and a valve control 38 (see FIG. 4) - is installed.
  • a first signal line 51 leads to a central control 5, from which a second signal line 52 to the mixed water station 2 and a third signal line 53 to the pump 4 runs.
  • the central controller 5 is powered from the outside and has a connection for a building management system (57).
  • the pump 4 upstream and downstream are again a first and a second shut-off valve 41,42, wherein between the pump 4 and the second shut-off valve 42, a branch 15 leads to the mixed water station 2 .
  • all return strands 12 collect in a return main line 14, which ends to the first shut-off valve 41, on to the pump 4, to the second shut-off valve 42 and finally in the hot water generator 1.
  • a first signal line 51 does not extend from the central control 5, not in parallel to each functional unit 3 , but in series only to one functional unit 3. From this, the signal line continues in respective extensions 51 ' from one functional unit 3 to the next respective functional unit 3 .
  • a fitting 6 which is installed in the return strand 12 .
  • the fitting 6 has a pipe wall 60 and on both sides connecting piece 66 to which the return strand 12 is supplied from both sides.
  • a gutter 61 with an axial web passage 64.
  • a regulating member 65 is inserted, with which the opening width of the web passage 64 can be adjusted.
  • an outlet 62 and on the other hand of the gutter 61 an inlet 63.
  • Outlet and inlet 62,63 are currently closed by a 2/2-way valve 30 , the valve control 38 of a control box 36 is acted upon, from which a temperature sensor 37 picks up the parameters on the fitting 6 .
  • the measured temperature is identical in principle to the guided in the return line 12 hot water. Apart from detecting the temperature, other sensor elements could be incorporated, such as flow and pH.
  • From the valve control 38 projects a connection element 380 , to which the electrical coupling 50 can be connected, from which a first signal line 51 goes off.
  • the central controller 5 has an external power supply and is connected to the first, second and third signal lines 51, 52, 53 .
  • the central controller 5 may have an outlet 57 to a building management system and a bus terminal 58 in expanded equipment.
  • a display 54 and first and second function keys 55,56 are available.
  • the signal lines 51, 52, 53 could be replaced by wireless interfaces, and the external power supply could be taken from an internal battery.
  • the temperature setpoint values for the individual control boxes 36 can be conveniently predefined by the central controller 5 , it also being possible to set individual setpoint values for the individual strands S1-S5 can.
  • a central controller 5 with a high level of equipment also makes it possible to set the hysteresis in the control behavior, to drive several controlled temperature levels in the controlled hydraulic balancing, to create LOG files and to achieve self-learning control behavior.
  • the relevant 2/2-way valve 30 of the valve control 38 in the control box 36 now receives the command to move to the other position, ie the binary character of this valve 30 fully open.
  • the output and inlet 62,63 are released for the hot water flow and in the strand S4 , the volume flow, whereby fresh hot water flows from the mixing water station 2 via the main flow line 10 and the flow line 11 , so that in the strand S4, the water temperature on the Setpoint adjusted.
  • the flowing in the return line 12 hot water passes through the first shut-off valve 41 to the pump 4 and from there either in the direction of the hot water generator 1 or in the mixing water station 2.
  • the switching position of the 2/2-way valve 30 can be adjusted by adjusting the manual Regulator 65 of the Steg pengang 64 open by a desired amount to allow a permanent small volume flow in the return line 12 .

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)
  • Steam Or Hot-Water Central Heating Systems (AREA)
  • Control For Baths (AREA)
EP05405706A 2005-01-13 2005-12-19 Dispositif et méthode pour contrôler la circulation dans une installation de circulation d'eau chaude Active EP1681515B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH462005 2005-01-13

Publications (2)

Publication Number Publication Date
EP1681515A1 true EP1681515A1 (fr) 2006-07-19
EP1681515B1 EP1681515B1 (fr) 2012-05-02

Family

ID=34974588

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05405706A Active EP1681515B1 (fr) 2005-01-13 2005-12-19 Dispositif et méthode pour contrôler la circulation dans une installation de circulation d'eau chaude

Country Status (4)

Country Link
EP (1) EP1681515B1 (fr)
AT (1) ATE556274T1 (fr)
DK (1) DK1681515T3 (fr)
ES (1) ES2386965T3 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1947395A2 (fr) 2007-01-22 2008-07-23 JRG Gunzenhauser AG Soupape de régulation et régulation de circulation pour un circuit d'eau chaude
EP2233648A1 (fr) * 2009-03-09 2010-09-29 Gebr. Kemper GmbH + Co. KG Metallwerke Système de boisson et d'eau sanitaire
DE202011002327U1 (de) * 2011-02-03 2012-05-08 Gebr. Kemper Gmbh + Co. Kg Metallwerke Trink- und Brauchwassersystem
CN102635147A (zh) * 2011-02-10 2012-08-15 奥文特罗普有限责任两合公司 饮用水或生活用水系统
EP3783269A1 (fr) * 2019-08-19 2021-02-24 Solvis GmbH Procédé de fonctionnement d'une installation d'eau potable, installation d'eau potable et dispositif de commande

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3522344A1 (de) * 1985-06-22 1987-01-02 Meyer Fa Rud Otto Verfahren zur regelung der temperatur des an ein warmwasser-versorgungssystem mit zirkulationsleitung angeschlossenen verbrauchern zufliessenden warmwassers und warmwasserversorgungssystem zur durchfuehrung des verfahrens
EP0249070A2 (fr) * 1986-06-07 1987-12-16 DEUTSCHE VORTEX GmbH Appareil pour contrôler la circulation dans le circuit d'un médium réchauffé pourvu de points de puisage

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3522344A1 (de) * 1985-06-22 1987-01-02 Meyer Fa Rud Otto Verfahren zur regelung der temperatur des an ein warmwasser-versorgungssystem mit zirkulationsleitung angeschlossenen verbrauchern zufliessenden warmwassers und warmwasserversorgungssystem zur durchfuehrung des verfahrens
EP0249070A2 (fr) * 1986-06-07 1987-12-16 DEUTSCHE VORTEX GmbH Appareil pour contrôler la circulation dans le circuit d'un médium réchauffé pourvu de points de puisage

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1947395A2 (fr) 2007-01-22 2008-07-23 JRG Gunzenhauser AG Soupape de régulation et régulation de circulation pour un circuit d'eau chaude
EP2233648A1 (fr) * 2009-03-09 2010-09-29 Gebr. Kemper GmbH + Co. KG Metallwerke Système de boisson et d'eau sanitaire
DE202011002327U1 (de) * 2011-02-03 2012-05-08 Gebr. Kemper Gmbh + Co. Kg Metallwerke Trink- und Brauchwassersystem
CN102635147A (zh) * 2011-02-10 2012-08-15 奥文特罗普有限责任两合公司 饮用水或生活用水系统
CN102635147B (zh) * 2011-02-10 2014-11-12 奥文特罗普有限责任两合公司 饮用水或生活用水系统
EP2487301B1 (fr) 2011-02-10 2017-09-06 Oventrop GmbH & Co. KG Système d'eau potable ou d'eau sanitaire
DE102011010840B4 (de) * 2011-02-10 2019-08-14 Oventrop Gmbh & Co. Kg Trink- oder Brauchwassersystem
EP3783269A1 (fr) * 2019-08-19 2021-02-24 Solvis GmbH Procédé de fonctionnement d'une installation d'eau potable, installation d'eau potable et dispositif de commande
DE102019122225A1 (de) * 2019-08-19 2021-02-25 Solvis GmbH Verfahren zum Betreiben einer Trinkwasseranlage, Trinkwasseranlage und Steuereinrichtung

Also Published As

Publication number Publication date
EP1681515B1 (fr) 2012-05-02
DK1681515T3 (da) 2012-06-04
ES2386965T3 (es) 2012-09-07
ATE556274T1 (de) 2012-05-15

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