EP1681515B1 - 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
EP1681515B1
EP1681515B1 EP05405706A EP05405706A EP1681515B1 EP 1681515 B1 EP1681515 B1 EP 1681515B1 EP 05405706 A EP05405706 A EP 05405706A EP 05405706 A EP05405706 A EP 05405706A EP 1681515 B1 EP1681515 B1 EP 1681515B1
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EP
European Patent Office
Prior art keywords
track
flow
control
hot water
temperature
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EP05405706A
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German (de)
English (en)
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EP1681515A1 (fr
Inventor
Kurt Bürli
Marcel Lüscher
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Georg Fischer JRG AG
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Georg Fischer JRG AG
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Publication of EP1681515A1 publication Critical patent/EP1681515A1/fr
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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.
  • the thermal disinfection is used in hot water circuits
  • the cycle is rinsed periodically 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 valve for Circulation Lines, Print No .: ti 130-0 / 20 / MW, 2004 edition.
  • significant expenditures were made, especially for large buildings, to determine accurate calculation bases for the hydraulic balancing by means of dimensioning of the pipes and actuators.
  • Today's balancing valves must be manually adjusted, while the thermostatic control valves automatically perform hydraulic balancing at a defined temperature.
  • 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 is in 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 In contrast to the execution according to FIG. 2 does not extend from the central controller 5 in parallel to each functional unit 3, a first signal line 51, but in series only to a 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 .

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  • 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)

Claims (11)

  1. Procédé de régulation de la recirculation dans des circuits d'eau chaude qui présentent :
    a) plusieurs branches (S1-S5) auxquelles de l'eau chaude est apportée par un ou plusieurs conduits principaux de départ (10) et des branches de départ (11) qui raccordent chaque branche (S1-S5) aux conduits principaux de départ (10),
    b) au moins un départ de branche (13) servant d'emplacement de soutirage d'eau sur chaque branche de départ (11),
    c) une branche de retour (12) raccordée dans chaque branche (S1-S5) en aval du dernier départ de branche (13),
    d) une vanne de régulation (30) disposée dans chaque branche de retour (12) pour garantir la disponibilité permanente d'eau chaude à une valeur de consigne de température dans la branche (S1-S5),
    caractérisé en ce que
    e) la température de l'eau chaude présente dans la branche de retour (12) est mesurée en tant que valeur effective et régulée dans chaque branche de retour (12),
    une valeur de consigne de température de l'eau chaude est prédéterminée dans un boîtier de commande (36) installé dans chaque branche de retour (12) et
    la valeur effective de la température de l'eau chaude mesurée par la sonde de température (37) et la valeur prédéterminée de consigne de température sont comparées dans une commande de vanne (38) et, si un écart négatif est dépassé, l'entraînement de réglage d'une vanne (30) à 2/2 voies est activé pour ouvrir le débit passant dans la branche de retour (12).
  2. Procédé selon la revendication 1, caractérisé en ce que
    a) la valeur de consigne de température est transmise à chaque boîtier de commande (36) par une commande centrale (5) sur un premier conducteur (51) de signaux ou par une interface sans fil,
    b) une valeur distincte de consigne de température est prédéterminée pour chaque boîtier de commande (36) et
    c) la régulation du circuit d'eau chaude qui présente les différentes branches (S1-S5) s'effectue à différents niveaux de température, par exemple à 57°C pour le fonctionnement normal et à 80°C pour une phase temporaire de désinfection thermique.
  3. Procédé selon au moins l'une des revendications 1 et 2, caractérisé en ce que
    a) l'hystérèse du comportement régulé de chaque branche (S1-S5) est réglée dans la commande centrale (5) et
    b) la commande centrale (5) est dirigée par un système d'ordre hiérarchique plus élevé de conduite du bâtiment.
  4. Procédé selon au moins l'une des revendications 1 et 2, caractérisé en ce que la régulation de chaque branche (S1-S5) est conduite en cycle doté d'un auto-apprentissage.
  5. Procédé selon au moins l'une des revendications 1 à 4, caractérisé en ce que des fichiers LOG de contrôle de processus sont saisis dans la commande centrale (5).
  6. Procédé selon au moins l'une des revendications 1 à 5, caractérisé en ce qu'en plus de la température, d'autres paramètres, par exemple le débit de passage et la valeur du pH, sont saisis dans chaque branche (S1-S5).
  7. Dispositif en vue de la mise en oeuvre du procédé selon la revendication 1 de régulation de la recirculation de circuits d'eau chaude, le dispositif comportant :
    a) plusieurs branches (S1-S5) auxquelles de l'eau chaude est apportée par un ou plusieurs conduits principaux de départ (10) et des branches de départ (11) qui raccordent chaque branche (S1-S5) aux conduits principaux de départ (10),
    b) au moins un départ de branche (13) prévu comme emplacement de soutirage d'eau sur chaque branche de départ (11),
    c) dans chaque branche (S1-S5), une branche de retour (12) disposée en aval du dernier départ de branche (13),
    d) une vanne de régulation (30) disposée dans chaque branche de retour (12) et destinée à garantir la disponibilité permanente d'eau chaude à une valeur de consigne de température dans la branche (S1-S5), caractérisé en ce que
    e) une unité fonctionnelle (3) qui présente une vanne (30) à 2/2 voies, un boîtier de commande (36) doté d'une sonde de température (37) et une commande de vanne (38) sont installés dans chaque branche de retour (12),
    f) le boîtier de commande (36) est conçu pour conduire la régulation à une valeur prédéterminée de consigne de température,
    g) la commande de vanne (38) agit sur un entraînement d'ajustement de la vanne (30) à 2/2 voies pour ouvrir le passage dans la branche de retour (12) en fonction du résultat de la comparaison entre la température effective et la température de consigne de l'eau chaude si l'écart négatif dépasse une tolérance et
    h) les boucles de régulation des différentes branches (S1-S5) sont toutes intrinsèquement fermées.
  8. Dispositif selon la revendication 7, caractérisé en ce que
    a) chaque boîtier de commande (36) est relié par un premier conducteur (51) de signaux ou par une interface sans fil à une commande centrale (5), en particulier pour transmettre la valeur prédéterminée de consigne de température au boîtier de commande (36) et pour signaler en retour l'évolution du processus à la commande centrale (5),
    b) une valeur individuelle de consigne de température peut être prédéterminée pour chaque boîtier de commande (36) et
    c) la commande centrale (5) est conçue pour conduire la régulation du circuit d'eau chaude à plusieurs branches (S1-S5) à plusieurs niveaux de température, par exemple à 57°C pour le fonctionnement normal et 80°C pour une phase temporaire de désinfection thermique.
  9. Dispositif selon au moins l'une des revendications 7 et 8, caractérisé en ce que
    a) l'hystérésis du comportement régulé de chaque branche (S1-S5) peut être ajustée dans la commande centrale (5),
    b) la commande centrale (5) est raccordée à un système d'ordre hiérarchique plus élevé de conduite du bâtiment,
    c) la commande centrale (5) est équipée d'un affichage (54), de premières et de deuxièmes touches de fonction (55, 56), d'un raccordement (57) au système de conduite et d'un raccordement (58) à un bus et
    d) en plus de la sonde de température, d'autres sondes, par exemple de débit de passage et de valeur du pH, et dont les résultats de mesure interviennent dans la commande complexe du processus, sont disposées dans chaque branche (S1-S5).
  10. Dispositif selon au moins l'une des revendications 7 à 9, caractérisé en ce que
    a) l'unité fonctionnelle (3) est montée au moyen d'un raccord (6) installé dans la branche de retour (12) et dotée sur ses deux côtés de tubulures de raccordement (66),
    b) une branche intermédiaire (61) disposée transversalement par rapport à la direction d'écoulement et qui peut présenter un passage axial (64) est disposée sur le raccord (6) pour le bloquer,
    c) un orifice de sortie (62) est prévu dans la paroi tubulaire (60) du raccord (6) sur un côté de la branche intermédiaire (61) et un orifice de départ (63) est prévu sur l'autre côté de la branche intermédiaire (61) et
    d) l'orifice de sortie et l'orifice de départ (62, 63) sont fermés ou ouverts par la vanne (30) à 2/2 voies.
  11. Dispositif selon la revendication 10, caractérisé en ce qu'un organe de régulation (65) qui permet d'ajuster la largeur d'ouverture de la branche de passage (64) est inséré dans la branche intermédiaire (61) face à l'orifice de sortie et à l'orifice de départ (62, 63).
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)

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EP1681515B1 true EP1681515B1 (fr) 2012-05-02

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

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3783269B1 (fr) * 2019-08-19 2023-10-11 Solvis GmbH Procédé de fonctionnement d'une installation d'eau potable, installation d'eau potable et dispositif de commande

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH700118B1 (de) 2007-01-22 2010-06-30 Fischer Georg Jrg Ag Regelventil und damit aufgebaute Zirkulationsregelung für einen Warmwasserkreislauf.
DE202009003135U1 (de) * 2009-03-09 2010-09-02 Gebr. Kemper Gmbh + Co. Kg Trink- oder Brauchwassersystem
DE202011002327U1 (de) * 2011-02-03 2012-05-08 Gebr. Kemper Gmbh + Co. Kg Metallwerke Trink- und Brauchwassersystem
DE102011010840B4 (de) * 2011-02-10 2019-08-14 Oventrop Gmbh & Co. Kg Trink- oder Brauchwassersystem

Family Cites Families (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
DE3619217A1 (de) * 1986-06-07 1987-12-10 Vortex Gmbh Dt Vorrichtung zur regelung der zirkulation in einem temperaturbeaufschlagten, entnahmestellen aufweisenden medienkreislauf

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3783269B1 (fr) * 2019-08-19 2023-10-11 Solvis GmbH Procédé de fonctionnement d'une installation d'eau potable, installation d'eau potable et dispositif de commande

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Publication number Publication date
EP1681515A1 (fr) 2006-07-19
ATE556274T1 (de) 2012-05-15
DK1681515T3 (da) 2012-06-04
ES2386965T3 (es) 2012-09-07

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