EP3412978A1 - Procédé de commande d'un système de refroidissement et/ou de chauffage - Google Patents

Procédé de commande d'un système de refroidissement et/ou de chauffage Download PDF

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Publication number
EP3412978A1
EP3412978A1 EP17175231.4A EP17175231A EP3412978A1 EP 3412978 A1 EP3412978 A1 EP 3412978A1 EP 17175231 A EP17175231 A EP 17175231A EP 3412978 A1 EP3412978 A1 EP 3412978A1
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EP
European Patent Office
Prior art keywords
heating
ideal
heating circuits
circuit
flow
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Granted
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EP17175231.4A
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German (de)
English (en)
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EP3412978B1 (fr
Inventor
Willi Pommer
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Rehau Automotive SE and Co KG
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Rehau AG and Co
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Priority to EP17175231.4A priority Critical patent/EP3412978B1/fr
Publication of EP3412978A1 publication Critical patent/EP3412978A1/fr
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    • 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
    • F24D19/1009—Arrangement or mounting of control or safety devices for water heating systems for central heating
    • F24D19/1015—Arrangement or mounting of control or safety devices for water heating systems for central heating using a valve or valves
    • 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
    • F24D2220/00—Components of central heating installations excluding heat sources
    • F24D2220/04—Sensors
    • F24D2220/042—Temperature sensors

Definitions

  • the present invention relates to a method for controlling a heating and / or cooling system, in which a tempering is heated or cooled in a tempering, is passed via a flow line with a flow temperature sensor to a flow-Heiznikverteiler through the flow-heating manifold on Heating circuits, each comprising a valve with an associated actuator, a flow, a consumer and a return with a return temperature sensor is distributed, the heating circuits flows through and is guided via a return heating manifold in a return line and the return line to the temperature , Moreover, the present invention also relates to a heating and / or cooling system, which comprises a tempering element; a flow line with a flow temperature sensor; a flow heating circuit manifold; Heating circuits, each comprising a valve with an associated actuator, a flow, a consumer and a return with a return temperature sensor; a return heating circuit manifold; a return line and a control unit comprises; wherein the control unit is adapted to provide the operations for performing
  • Such methods for controlling a heating and / or cooling system and corresponding heating and / or cooling systems are known from the prior art.
  • a suitable flow temperature of the temperature control medium in a tempering element for example a boiler, a condensing boiler or a heat pump, as well as by the individual adjustment of the amount of water, which is supplied to the heating circuits achieved.
  • the flow temperature is not set individually for each individual room / consumer, but rather for a group of rooms / consumers.
  • the room-specific energy supply is therefore realized by the individual room control technology, usually by in-room Room controller.
  • the detection of the return temperature of the individual heating circuits to detect the spread between flow and return temperature to a reduction used the described problems.
  • This is used in control systems in which in a control unit, the control of the room temperature by opening the valves located in the heating circuit, either in a time ratio or in a certain opening degree is performed.
  • the temperature difference occurring between the flow and return of the respective heating circuit is determined and taken into account in the control algorithm.
  • this temperature difference is only one parameter for assessing the heat output to a room.
  • the resulting flow which is another crucial parameter for heat dissipation to a room, can not be detected with this procedure.
  • the flow rate is adjusted either in time steps or by adjusting the opening degree of valves so that adjusts a calculated by the control system as appropriate temperature difference between flow and return.
  • the mutual hydraulic influence of the heating circuits is thereby only reduced in the quasi-stationary state, that is to say when the room temperature is adjusted in the vicinity of the desired value.
  • load jumps for example, when returning from reduced operation or other changes in the operating mode
  • a high temperature difference between flow temperature and return temperature arises due to the cooling of the heating surfaces, which exceeds the steady state value and can not be compensated.
  • the present invention is based, which is based on the object to provide a method for controlling a heating and / or cooling system, which overcomes the disadvantages of the prior art.
  • the method according to the invention is intended to ensure a supply of the individual heating circuits which is improved for the load case in the event of changing operating conditions of the heating system, which comprises a plurality of heating circuits.
  • the present invention is also in the provision of a heating and / or cooling system, which is designed for carrying out the method according to the invention, as well as in a computer program product of a control unit for controlling a heating and / or cooling system, which performs the operations for carrying out an inventive Method in the rule unit.
  • the period of time determined by a suitable measuring technique which is required for the complete replacement of the temperature-control medium in a heating circuit in different load cases, can also be used. While the methods of classic room temperature control can only react to the changes in room temperature and thus in heating systems with high storage mass only with considerable time delay, can be intervened with the inventive method correcting already in the energy delivery to the heating surface.
  • the period of time required to exchange the temperature control medium in a heating circuit varies with different operating states of the system.
  • a first step therefore, in an undisturbed state of the heating circuits of a room, that is, without influencing the hydraulic conditions by further heating circuits, determines the period required for the complete replacement of the temperature in a heating circuit without operation of another heating circuit. The determination of this period takes place via the evaluation of the temperature profiles of temperature sensors in the flow line and in the return of the respective heating circuit. This process is carried out one after the other for all n heating circuits individually.
  • This period which corresponds to the time interval between the occurrence of a temperature change at the flow temperature sensor after delivery of an opening signal to the actuator of the valve of a heating circuit to the occurrence of a resulting temperature change at the return temperature sensor of the heating circuit in the closed state of the valves of the other heating circuits denoted as T (circuit response, n).
  • the effect of a high-load operating state is determined to be the time required for the complete replacement of the temperature-control medium in a heating circuit.
  • a high-load operating state ie, high energy demand from multiple consumers / in multiple rooms
  • an opening signal is delivered to all actuators of the valves of the heating circuits of a heating circuit distributor at the same time.
  • the time T (circuit response max, n) is determined for each of the n heating circuits, which thus corresponds to the transit time of the temperature control medium through the respective heating circuit under full load.
  • ideal opening times T are determined for the respective valves of the n heating circuits.
  • These ideal opening times T are a percentage of a cycle time that is adapted to the characteristics of the heating system. For example, surface heating in which the heating circuits are embedded in screed typically uses a cycle time of 20 minutes. Thus, with a desired heat output of 0% to 100%, calculated opening times range from 0 minutes to 20 minutes. This method is called pulse width modulation (PWM).
  • PWM pulse width modulation
  • the calculation of the ideal opening times T (open ideal, n) for the individual heating circuits takes place as a function of the amount of energy required by the respective consumer, for example a relevant room, which results inter alia from the deviation of the currently prevailing room temperature from the room temperature setpoint for this room ,
  • These ideal opening times T (open ideal, n) are then corrected, which results in an actual opening time T (open act, n) of the valve for each of the n heating circuits.
  • the prerequisite for this correction is to identify those heating circuits in which the change in the load conditions only to a lesser extent than in other heating circuits on the determined duration of the tempering through the heating circuit.
  • the heating circuits identified in this way are preferred over the rest of the heating circuits in the distribution of the available temperature control, thus disadvantaging other heating circuits. The operation of one or more of these heating circuits will therefore hinder the operation of the remaining heating circuits.
  • the correct opening times T (open ideal, n) are corrected for each of the n heating circuits as a function of the deviation of the maximum cycle time T (circuit response max, n) from the ideal cycle time T (circuit response, n) of the respective heating circuit. Finally, the valves of the individual heating circuits are opened over a period corresponding to the determined actual opening time T (open act, n) of the respective valve.
  • the present invention is to provide a heating and / or cooling system, which is a tempering; a flow line with a flow temperature sensor; a flow heating circuit manifold; Heating circuits, each comprising a valve with an associated actuator, a flow, a consumer and a return with a return temperature sensor; a return heating circuit manifold; a return line and a control unit, wherein the control unit is designed to provide the operations for carrying out the method according to the invention.
  • the present invention also provides a computer program product of a control unit for controlling a heating and / or cooling system, in which a temperature control medium is heated or cooled in a temperature control element, is conducted via a flow line with a flow temperature sensor to a flow heating manifold, is distributed by the flow-heating manifold on heating circuits each comprising a valve with an associated actuator, a flow, a consumer and a return with a return temperature sensor, flows through the heating circuits and via a return-Heiz Vietnameseverteiler in a return line and on the Return line is led to the tempering, wherein the execution of the computer program product in the control unit is adapted to provide the operations for performing the method according to the invention.
  • pulse width modulation is understood to mean the variable switch-on time of a signal, the switch-on time being repeated periodically in a fixed time frame, the cycle time.
  • This switch-on time which in the present application corresponds to the switch-on time of the flow, is referred to as "pulse width”.
  • the length of the pulse width is determined by the control algorithm integrated in the control unit on the basis of the measured room temperature and the temperature setpoint currently or at a time interval taking into account the properties of the controlled system.
  • a minimum pulse width is preferred for efficient heating.
  • the amount of the minimum pulse width is based on the characteristic properties of the system to be controlled.
  • the characteristic features of the system to be controlled also include the time behavior of the actuator, in the case of surface heating, the combination of the actuator with the valve mounted on the hydraulic distributor. Furthermore, it is advantageous that the pulse width is selected so that during this time period, the longest heating circuit is filled with the temperature control.
  • the time frame required for this purpose can, for. B. vary between 5 and 60 minutes.
  • the beginning of the switch-on of the various heating circuits can begin at the same time or preferably at different times.
  • the time offset of the switch-on reduces the load of the control system occurring at the time of switch-on by the inrush currents of the actuators used and at the same time reduces the changes in the increase of the flow of the temperature control medium due to the valve opening.
  • the heating and / or cooling system according to the invention is preferably underfloor heating / cooling.
  • the temperature control medium is supplied to the heating circuits for cooling / heating.
  • the tempering medium may be, for example, water or another suitable liquid medium.
  • the tempering z. B. glycol may be added.
  • Underfloor heating / cooling means that the heating loops, for example in the screed, run under the floor or are otherwise integrated into the floor structure.
  • the heating loops can also be installed in another suitable structure. Thus, the heating loops can also be installed in the wall or ceiling.
  • the correct opening times T (open ideal, n) are corrected by applying a correction factor K (load max, n) to the ideal opening time T (open ideal, n) for each of the n heating circuits.
  • a heating circuit should preferably be classified as a critical heating circuit if it falls below a statistical characteristic of the correction factors K (load max, n) of the n heating circuits.
  • the statistical characteristic used is preferably an average, in particular the geometric mean, the harmonic mean or the arithmetic mean, the median or another suitable statistical parameter.
  • the actual opening time T (open act, n) of the valves can also be determined such that the actual opening time T (open act, n) of the valves for the critical classified heating circuits compared to the respective ideal opening time T (open ideal, n ) is shortened just when the valve of at least one classified as critical heating circuit is opened, or the actual opening time T (open act, n) of the valves of the respective ideal opening time T (open ideal, n) corresponds, if no valve (6, 6 ', 6 ", 6"') of a classified as critical heating circuit is opened.
  • the actual opening time T (open act, n) of the heating circuits classified as non-critical preferably corresponds in both cases to the respective ideal opening time T (open ideal, n) of the relevant valve.
  • the shortening of the opening times of the valves for the heating circuits classified as critical takes place in particular by a fraction of at least approximately 20% of the relevant ideal opening time T (open ideal, n), preferably 25%, 30%, 35%, 40%, 45%, 50%, 55%, 60%, 65%, 70%, 75% and preferably at most 80% of the respective ideal opening time T (open ideal, n) of the respective valve.
  • Such a procedure represents a further simplification for the method according to the invention.
  • the actual opening time T (open act, n) of the valves for the heating circuits classified as critical may be shortened with respect to the relevant ideal opening time T (open ideal, n) whose correction factor K (load max , n) falls below the mean value of the correction factors K (load max, n) of the n heating circuits by at least 10%, preferably by at least 30%.
  • the statistical characteristic used is preferably an average, in particular the geometric mean, the harmonic mean or the arithmetic mean, the median or another suitable statistical parameter.
  • step (ii) and (iv) are repeated several times, wherein in step (ii) the delivery of the opening signal takes place only on a selection of the actuators of the valves and the times and in following step (iv) corrections are stored so that they are applied in the presence of the equivalent requirement situation according to step (v).
  • equivalent requirement situation means that set of ideal opening time T (open ideal, n) stored in the system and correction factors K (load max, n) of the n heating circuits that most closely resembles the current request situation.
  • the selection of the actuation of the actuators of the valves is carried out in such a way that the actuation of only one of the actuators of the heating circuits is omitted, whereby the selection of the non-actuated heating circuits is performed in ascending order of the values for K (load max , n).
  • the selection of the control of the actuators of the valves is carried out so that preferably the control of more than one of Actuators of the heating circuits is omitted, with the selection of the non-driven heating circuits limited to the heating circuits, which have the lowest values for K (load max). It is particularly preferred if the corrections in step (iv) are selected such that the stored operating state is used which comes closest to the request situation that is currently present.
  • step (vi) it may also be advantageous if the opening of the valves in step (vi) takes place simultaneously. However, it is preferred if the opening of the valves in step (vi) takes place with a time offset of at least 20 seconds. In this way, sudden electrical and hydraulic loads that can occur in a simultaneous valve opening can be avoided. From a certain load request, a more uniform operation is thus ensured.
  • control unit is modularly constructed from a main unit and an auxiliary unit, wherein the auxiliary unit comprises the flow temperature sensor and the return temperature sensor and is connected to the main unit via a communication line.
  • the heating and / or cooling system according to the invention and individual parts thereof can also be produced line by line or in layers using a line-building or layer-building manufacturing method (eg 3D printing).
  • a line-building or layer-building manufacturing method eg 3D printing
  • a heating and / or cooling system 1 for carrying out a method according to an embodiment of the present invention is shown schematically.
  • a temperature control medium for example water or a water / glycol mixture
  • the flow-heating manifold 4 distributes the temperature control to a plurality of heating circuits 5, 5 ', 5 ", 5"'.
  • the heating circuits 5, 5 ', 5 ", 5"' guide the tempering medium through the surfaces through which the space in question is to be heated or cooled.
  • the heating circuits 5, 5 ', 5 “, 5'” each include a valve 6, 6 ', 6 “, 6'” with an associated actuator, a flow, a consumer (in floor heating, for example, the screed to be heated or closed cooling space, heating system with radiators a radiator) and a return with a return temperature sensor 7, 7 ', 7 ", 7"'.
  • the heating circuits 5, 5 ', 5 ", 5"' open into a return heating circuit manifold 8. From the return heating circuit manifold 8, the temperature control medium flows through a return line 9 back to a temperature control element 10 for heating or cooling of the tempering (eg Heat pump or a condensing boiler).
  • valves 6, 6 ', 6 ", 6"' and the actuators associated therewith are arranged in the return of the individual heating circuits 5, 5 ', 5 “, 5'” and control the flow of the tempering medium through the individual heating circuits 5, 5 ', 5 “, 5"'.
  • a control unit 11 is signal-conducting connected to the individual actuators and controls their operation.
  • the valves 6, 6 ', 6 ", 6"' and the actuators associated therewith can also be assigned to the flow of the individual heating circuits 5, 5 ', 5 ", 5"'.
  • heating and / or cooling system 1 may further optionally comprise a circulation pump 16 and / or a connection 12 between the supply line 2 and the return line 9, wherein the connection 12 may be provided with a mixing valve 13.
  • the separate circulating pump and / or the connection 12 between the supply line 2 and the return line 9 are not necessarily in every embodiment of the heating and / or cooling system 1.
  • the temperature of the temperature in the flow line 2 is measured and transmitted to the control unit 11.
  • one of the return line 9 associated return temperature sensor 14 measures the temperature of the temperature control in the return line 9 and transmits it to the control unit eleventh
  • the control unit 11 can regulate the temperature of the temperature control in the flow line 2, for example, by the mixing valve 13 is controlled accordingly.
  • an outside temperature sensor 15 can determine the outside temperature and in turn pass it on to the control unit 11.
  • the piping of the flow line 2, the heating circuits 5, 5 ', 5 ", 5'" and the return line 9 is typically z.
  • the heating and / or cooling system 1 distributes the amount of heat required in the individual rooms in a floor heating, characterized in that through the valves 6, 6 ', 6 ", 6'” the inflow of temperature control medium with a certain temperature in the respective heating circuit 5, 5 ', 5 ", 5"' in the ground regulated / controlled.
  • a heating circuit 5, 5 ', 5 ", 5'” per room is used, wherein the heat supply of a correspondingly large space may also require two or more heating circuits 5, 5 ', 5 ", 5"'.
  • the control unit 11 sends corresponding signals to the actuators of the valves 6, 6 ', 6 ", 6"' for a corresponding period to open and close again.
  • FIG Fig. 2 illustrates a diagram of a possible time course of the flow and return temperatures exemplarily for de heating circuit 5, wherein the course shown for the initial opening of valves 6, 6 ', 6 “, 6'” applies after a sufficiently long waiting time, in the temperature of the stagnant tempering medium has largely adapted to the prevailing ambient temperature.
  • heating circuits 5, 5 ', 5 ", 5'” determines the ideal cycle time T (circuit response, n), wherein always only one heating circuit (or all a room associated heating circuits) is operated.
  • the ideal cycle time T (circuit response, n) then corresponds for each of the n heating circuits 5, 5 ', 5 “, 5'” respectively to the time interval between the occurrence of a temperature change at the flow temperature sensor 3 after delivery of an opening signal to the actuator of the valve 6 of the heating circuit 5 until the occurrence of a temperature change caused by the opening of the valve 6 of the heating circuit 5 at the return temperature sensor 7 of this heating circuit 5 in the closed state of the valves 6 ', 6 ", 6'” of the other heating circuits 5 ', 5 ", 5 ''.
  • This is then also carried out for the other heating circuits 5 ', 5 ", 5'".
  • the thus determined ideal cycle times T thus correspond to the respective cycle time of the temperature control medium through the heating circuit 5, 5 ', 5 ", 5'” in this operating state.
  • a regulation opening time T (for each of the heating circuits 5, 5 ', 5 “, 5") is set by the control unit 11. open ideal) of the respective valve 6, 6 ', 6 ", 6'", which depends on the amount of energy required by the respective consumer, ie the space in question, which in turn depends, inter alia, on the deviation of the currently prevailing room temperature from the room temperature setpoint depends on this room.
  • the maximum cycle time T (circuit response max, n) is determined, each time the time interval between the occurrence of a temperature change at the flow temperature sensor 3 after simultaneous delivery of a Opening signal to the actuators of all valves 6, 6 ', 6 “, 6”' of the heating circuits 5, 5 ', 5 “, 5"' until the occurrence of a by opening the valve 6, 6 ', 6 “, 6'” the respective heating circuit 5, 5 ', 5 “, 5"' caused temperature change at the respective return temperature sensor 7, 7 ', 7 ", 7”' of the heating circuit 5, 5 ', 5 “, 5"' corresponds.
  • circuit response max, n corresponds to the respective cycle time of the temperature control by the heating circuit 5, 5 ', 5 ", 5"' in this operating condition, ie under full load. Due to the mutual hydraulic influence changed periods T (circuit response max, n) for the respective heating circuit 5, 5 ', 5 ", 5'" determined in full load operation.
  • K load max n T circuit response max n / T circuit response n the ratio of the maximum cycle times T (circuit response max, n) to the ideal cycle times T (circuit response max, n) for each of the n heating circuits 5, 5 "'5", 5'”results in a correction factor K (load max)
  • This correction factor K (load max, n) can now be used to classify the heating circuits 5, 5 ', 5 ", 5'” into critical and non-critical heating circuits.
  • the ideal opening time T (open ideal, n) of all critical heating circuits does not exceed this minimum fraction of preferably at least 60% of the largest ideal opening time T (open ideal, n) of the remaining heating circuits, the ideal opening times T (open ideal, n) become actual Opening times T (open act, n) of the respective valve 6, 6 ', 6 ", 6"' for the heating circuits 5, 5 ', 5 ", 5"' used.
  • valves of the individual heating circuits 5, 5 ', 5 “, 5'” are opened over a period corresponding to the determined actual opening time T (open act, n) of the respective valve 6, 6 ', 6 “, 6”' .
  • the control unit 11 is to the actuators the signal, the valves 6, 6 ', 6 “, 6”' on the calculated for the respective heating circuit 5, 5 ', 5 ", 5"' period T (open act, n) to open.
  • These adjusted opening times T (open act, n) correspond to a percentage of the time interval T (open ideal, n) predetermined by the pulse width modulating method.
  • valves 6, 6 ', 6 ", 6"' of the individual heating circuits 5, 5 ', 5 “, 5'” thus open at the beginning of the time interval simultaneously or with a small temporal Offset and close without corrective intervention after expiration of the adjusted opening time T (open act, n).
  • the obtained ideal opening times T (open ideal, n), the actual opening times T (open act, n) and the respective correction factors K (load max, n) are stored in the control unit 11.
  • a quantity of corresponding requirement statements, that is to say load cases, for the heating and / or cooling system 1 according to the invention are thus stored.
  • control unit 11 can determine the corresponding already stored values of the actual opening times T (open act, n) for the n heating circuits 5 , 5 ', 5 ", 5'” retrieve from their memory and provide by supplying appropriate signals to the control gates of the valves 6, 6 ', 6 ", 6"' for the heat supply of the individual rooms.
  • control unit 11 is modularly constructed from a main unit and an auxiliary unit.
  • the auxiliary unit comprises the flow temperature sensor 3 and the return temperature sensor 7, 7 ', 7 ", 7"' and is connected via a communication line to the main unit. This ensures the retrofittability of a heating and / or cooling system 1 for carrying out the method according to the invention.
  • the control unit 11 may comprise a computer program whose execution in the control unit 11 is arranged to provide at least some of the functional sequences described above.
  • the software product may be downloaded to the control unit 11 from a memory or data carrier such as a USB stick, a storage disk, a hard disk, a network server or the like.
  • the execution of this software product in the processor of the control unit 11 causes functional sequences that are described in this technical description for controlling a heating and / or cooling system 1 according to the invention.

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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)
EP17175231.4A 2017-06-09 2017-06-09 Procédé de commande d'un système de refroidissement et/ou de chauffage Active EP3412978B1 (fr)

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EP17175231.4A EP3412978B1 (fr) 2017-06-09 2017-06-09 Procédé de commande d'un système de refroidissement et/ou de chauffage

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EP17175231.4A EP3412978B1 (fr) 2017-06-09 2017-06-09 Procédé de commande d'un système de refroidissement et/ou de chauffage

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE1027799B1 (fr) * 2019-11-27 2021-06-23 Bess Energie Sprl Régulation à température glissante des eaux des circuits de retour de chauffage / d'eau glacée en vue de leur uniformisation automatique et, in fine, en guise de l'optimisation des rendements
CN114207548A (zh) * 2019-07-25 2022-03-18 施特劳勃合资公司 用于确定阀的液压阈值的调节装置和方法

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102020120839B4 (de) 2020-08-07 2024-05-16 Audi Aktiengesellschaft Temperatursteuervorrichtung mit reduzierter Temperatursensoranzahl
DE102020120844A1 (de) 2020-08-07 2022-02-10 Audi Aktiengesellschaft Temperatursteuervorrichtung mit Vorsteuerung und Regelung

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DE102006052124A1 (de) * 2006-11-06 2008-05-15 Danfoss A/S Abgleichsystem für eine Fußbodentemperierungs-Anordnung
CH705804A1 (de) * 2011-11-28 2013-05-31 Belimo Holding Ag Verfahren zur Regelung der Raumtemperatur in einem Raum oder einer Gruppe von mehreren Räumen sowie eine Vorrichtung zur Durchführung des Verfahrens.
EP2871421A1 (fr) * 2013-11-07 2015-05-13 Grundfos Holding A/S Distributeur hydraulique pour un système de chauffage et/ou de refroidissement hydraulique
US20170030593A1 (en) * 2015-07-28 2017-02-02 B2 Products Ltd. Modular track wiring assembly for a hydronic system

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006052124A1 (de) * 2006-11-06 2008-05-15 Danfoss A/S Abgleichsystem für eine Fußbodentemperierungs-Anordnung
CH705804A1 (de) * 2011-11-28 2013-05-31 Belimo Holding Ag Verfahren zur Regelung der Raumtemperatur in einem Raum oder einer Gruppe von mehreren Räumen sowie eine Vorrichtung zur Durchführung des Verfahrens.
EP2871421A1 (fr) * 2013-11-07 2015-05-13 Grundfos Holding A/S Distributeur hydraulique pour un système de chauffage et/ou de refroidissement hydraulique
US20170030593A1 (en) * 2015-07-28 2017-02-02 B2 Products Ltd. Modular track wiring assembly for a hydronic system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114207548A (zh) * 2019-07-25 2022-03-18 施特劳勃合资公司 用于确定阀的液压阈值的调节装置和方法
CN114207548B (zh) * 2019-07-25 2023-05-16 施特劳勃合资公司 用于确定阀的液压阈值的调节装置和方法
BE1027799B1 (fr) * 2019-11-27 2021-06-23 Bess Energie Sprl Régulation à température glissante des eaux des circuits de retour de chauffage / d'eau glacée en vue de leur uniformisation automatique et, in fine, en guise de l'optimisation des rendements

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