EP1936288B1 - Procédé et système destinés à la détection d'un équilibrage hydraulique d'une installation de chauffage - Google Patents

Procédé et système destinés à la détection d'un équilibrage hydraulique d'une installation de chauffage Download PDF

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Publication number
EP1936288B1
EP1936288B1 EP07017809.0A EP07017809A EP1936288B1 EP 1936288 B1 EP1936288 B1 EP 1936288B1 EP 07017809 A EP07017809 A EP 07017809A EP 1936288 B1 EP1936288 B1 EP 1936288B1
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EP
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Prior art keywords
radiator
heating
room temperature
radiators
hydraulic
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EP07017809.0A
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German (de)
English (en)
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EP1936288A3 (fr
EP1936288A2 (fr
Inventor
Arne Dr. Kähler
Jochen Dr. Ohl
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Techem Energy Services GmbH
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Techem Energy Services GmbH
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Priority to PL07017809T priority Critical patent/PL1936288T3/pl
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Publication of EP1936288A3 publication Critical patent/EP1936288A3/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
    • F24D19/1018—Radiator valves

Definitions

  • the present invention relates to a method and a system for detecting and optionally carrying out a hydraulic balancing of a heating system with a fluid flow system connected radiators, in particular a hot water heating system according to the preamble of claim 1.
  • the hydraulic balancing can after detection of an over- or undersupply of a radiator, the fluid flow can be regulated by individual radiators.
  • radiator valves can be used with a corresponding default.
  • ⁇ p TV 100% is the pressure drop across the valve when the valve is fully open and ⁇ p TV, to the pressure drop when the valve is closed.
  • a method for adjusting a plurality of parallel-connected heat exchanger is known in which for each heat exchanger from the current operation, the heat demand of the heat exchanger specific size is determined in a predetermined period of time, the specific sizes of all heat exchangers are compared and the setting of the heat exchanger with the The smallest heat demand indicating size is changed in the sense to increase the heat demand.
  • the heat exchanger with the largest consumption of heat transfer medium is penalized so to speak, by the flow rate of heat transfer medium is reduced.
  • each radiator is provided with a presettable valve in the inlet of the heating medium. This allows the flow through the individual radiators to be adjusted so that the hydraulic balancing of the various radiators is balanced.
  • the WO 03/052536 A2 describes a method for adapting the heat output in heating systems by specifying a flow temperature, which is derived from a building supply state.
  • the building supply state is determined from supply states of the individual radiators, which indicate their current heat demand, which is derived, for example, from the valve positions of the individual radiator valves.
  • a particular advantage of the invention is that the thermal dynamics is performed in a room by measuring thermal or heating dynamic variables that can be detected in the current heating operation.
  • the evaluation of the hydraulic conditions is carried out in a simple manner by comparing the characteristics of the thermal space dynamics, unfavorable hydraulic conditions are present when the space or heating dynamics of different radiator significantly different values or the characteristics of a radiator for a purposeful change carried out, for example
  • the flow temperature does not behave as with radiators with optimum hydraulic balancing.
  • the evaluation of the characteristic values of several radiators can also be combined with the evaluation of the particular time profile of the characteristic value of a radiator after a defined change, for example, the flow temperature.
  • Radiator temperatures and / or radiator supply states in particular their temporal change or discharge, which are detected for different radiators and / or over time for a radiator, for example after a deliberately made flow temperature change, are also considered as additional or alternatively used parameters become.
  • the radiator supply state is derived from the aforementioned temperatures and / or from the valve position of the radiator size, which indicates the heat demand of the radiator or the heating surface.
  • the measured values required for determining the radiator temperatures or radiator supply states can, for example, be determined by existing electronic heat cost allocators. Also from the comparison of such characteristic values for a radiator, in particular in the course of time, can be determined whether a radiator or other heating surface such as a floor heating, for which the Invention is also used in the heating system is hydraulically balanced properly.
  • a characteristic value can be represented by a transmission element of first or higher, for example.
  • Such mathematically representable functions allow the dynamics of the system to be taken into account particularly well and quickly. In this case, unfavorable hydraulic conditions exist if the determined or estimated parameters for the individual radiators deviate greatly from each other.
  • the new one can be provided Values not to be taken over directly, but to be weighted with old values, for example by averaging.
  • the matching of the characteristic values takes place iteratively, i. After a change in the stroke of the valve position on a hydraulically over- or underserved radiator, the corresponding characteristic values are determined again at a next predetermined temperature change, adjusted and set the resulting valve position limits accordingly. In this way, the best possible hydraulic balance is achieved over time, which also adapts automatically to a changed hydraulic situation, for example. A permanent shutdown of a particular radiator in an unused space, adapts.
  • the heating-up constant can be determined particularly simply by specifying a set room temperature increase and by measuring the time required for heating. This can be done in particular by means of an already existing electronic radiator room temperature control.
  • the characteristic values can be determined decentrally by a radiator room temperature controller equipped with room temperature sensors and transmitted to a control center or determined in a control room connected to room temperature sensors for the respective rooms and the radiator room temperature controllers.
  • the regulation of the radiator valve position can preferably be effected by the stroke of the radiator valve used in particular by a radiator control. If the maximum valve lift used for an overheated radiator is limited, this means that even with a desired heating process less heating fluid gets into the radiator. This limitation automatically increases the differential pressure on hydraulically less favorably located radiators in the closed heating system. This leads to an optimized hydraulic balancing of the heating system, which significantly improves the heating behavior.
  • the invention relates to a system for detecting a hydraulic balancing a heating system with fluid-flow radiators.
  • the system is constituted by a device adapted to carry out the method described above and comprises a detection device for detecting the room temperature of a space heated by a radiator, a radiator temperature and / or a valve position of a radiator valve, a computing unit for determining the thermal dynamics of the radiator Heated room indicating characteristic value from the detected room temperature, radiator temperature and / or valve position and a comparison device for comparing a characteristic with the characteristics of other rooms or radiators and / or more temporally successive following characteristic values of a radiator.
  • the arithmetic unit and / or the comparison unit which, for example, can be accommodated in a common or different microprocessor (s), are set up to carry out the method described above.
  • the system may have a central unit with a computing unit, which is set up to carry out the method.
  • the center may be a room temperature control, a consumption value detection device and / or a central apartment for temperature control or detection.
  • the detection device is integrated into a heat cost allocator and / or a single room temperature control, for example in the form of a radiator room temperature controller, since such systems are present in a variety of homes anyway, so that the inventive hydraulic balancing example Programs can be implemented in existing systems.
  • the arithmetic unit in an individual room control and / or a Verbrauchswert- or heating cost detection device and / or a central control units and / or data collector can be integrated.
  • a common heating circuit ie a coherent hydraulic system
  • the characteristic values can be determined centrally in the common control unit or decentrally in the respective computing units of the individual room controls and / or consumption value or heating cost detection devices.
  • Fig. 1 schematically a signal flow diagram of the invention is shown, after which a characteristic value can be determined for each heated by a radiator room, which indicates the thermal dynamics of this heated by the radiator space.
  • This information is used on the basis of a transfer element or a differential equation D ( ⁇ ) in the arithmetic unit 1 to determine a dynamic characteristic for each radiator.
  • This parameter may be the heating dynamics k therm , the dead time t T , a time constant T, a gain K or a radiator supply state VZ, a (corrected or uncorrected) radiator overtemperature ⁇ log or their time derivative.
  • a variant consists of first determining a dead time t T and then the heating dynamics k therm for the following temperature increase, wherein the dead time t T is the time interval between the time at which a heating phase is predetermined and the detection of a temperature rise. This is particularly advantageous when it comes only after a certain delay to a temperature increase.
  • a large dead time t T means a poor supply of the radiator and can thus serve as a dynamic characteristic.
  • valve lift h If the valve lift h is not known, the time-variable product K * h must be estimated instead of the gain K. This leads to a reduction in the convergence speed of the process. Therefore, the knowledge of Ventilstellhubes h is advantageous, but not condition for the feasibility of the method according to the invention.
  • a radiator-room temperature controller 9 is provided with a detection device 10 to each radiator 3, which detects the room temperature ⁇ of a heated by a radiator 3 space and the valve position h of a radiator valve 11 to which the radiator temperature control 9 acts.
  • 3 consumption value detecting means 13 for measuring radiator temperatures ⁇ , such as a Schubirdober friendship-, Schuvorlauf- and / or Schuterrorismtemperatur provided on the individual radiators.
  • a temperature sensor 14 for detecting the flow temperature in the heating system 2 for determining variables derived from the detected temperatures, such as, for example, a radiator supply state VZ, may be provided.
  • the room temperature ⁇ and the valve position h sends the radiator room temperature controller 9, for example.
  • the radiator room temperature controller 9 By means of radio communication to one of the respective apartment 8 associated central control unit 12 (control center), which also communicate with each other.
  • control center central control unit 12
  • Each or a control center 12 is provided with a computing unit, not shown, which determines for each heater 3 a thermal dynamics of a heated by the radiator 3 space characteristic value.
  • a comparison device also not shown, is also provided, which compares all determined characteristic values in order to draw a conclusion on the hydraulic behavior of the heating system 2. Then, starting from this control unit 12, possibly via other control panels 12, the radiator room temperature controller 9 is addressed to by regulations for the valve Stel-lieux the radiator valves 11, for example, to limit the maximum stroke and thus to provide a hydraulic compensation.
  • the corresponding communication paths between the individual radiator room temperature controllers 9 and the control centers 12 are in Fig. 4 illustrated again in an explanatory manner, wherein the double arrows indicate a bidirectional communication.
  • the system has a plurality of decentralized control units 12, to each of which a plurality of radiator room temperature controllers 9 and / or consumption detection devices 13 are assigned. Between radiator room temperature controllers 9 and associated control unit 12, there is a bidirectional communication link. There is a unidirectional or bidirectional communication connection between consumption recording devices 13 and assigned control unit 12. There are also bidirectional communication links between the remote control units 12.
  • the invention is not to those in the Fig. 3 and 4 illustrated embodiment limited.
  • the detection device, arithmetic unit and comparison unit required according to the invention can be located in devices other than those described above.
  • the system described is only particularly advantageous because radiator-room temperature controller 9 with temperature sensors or consumption value detection devices 13 and control panels 12, for example. In the context of a room temperature control and / or heating cost detection anyway, so that the invention can be implemented with little or no additional hardware.
  • the implementation of the method according to the invention will be described again concretely on the example of the heating dynamics k therm .
  • the method is based on the calculation and evaluation of the heating dynamics k therm for each radiator 3.
  • the heating dynamics k therm indicates how fast the space surrounding the radiator 3 heats up. If the heating dynamics k therm of a radiator 3 always comparatively small, can be closed to a hydraulically unfavorable adjustment of this radiator 3 compared to the other radiators 3 of the heating system 2.
  • the method can be realized according to the other specified characteristic values.
  • the heating dynamics k therm is calculated for each radiator 3 by an electronic radiator room temperature controller 9, a consumption value detection device 13 or by a decentralized or central control unit 12.
  • the attached to the radiator valves 11 radiator room temperature controller 9 record for the room air actual temperature ⁇ Ist or possibly also the Ventilstellhub h and send these values to at least one control unit 12.
  • the required actual temperature ⁇ Is also from other suitable devices such about room temperature sensors or electronic heat cost allocators as consumption value detection devices 13, are transmitted to the control units 12 or to the radiator room temperature controller 9.
  • the radiator-room temperature controller 9 or the control units 12 calculate from the received measured values cyclically the characteristics of the thermal space dynamics including the heating dynamics k therm for each radiator 3.
  • the calculation of these parameters from measured values during the heating phase before or after a set temperature jump. If the characteristic values of the thermal room dynamics including the heating dynamics k therm of the Radiator room temperature controllers 9 or determined by another (electronic) device, they transmit the results to a decentralized or to a central control unit 12. All calculation results are preferably transmitted to an excellent central control unit 12. This generates a list of all dynamic parameters including the heating dynamics k therm of all radiators 3 and performs a rating including a comparison of these characteristics. From the evaluation of the dynamic characteristics and in particular the heating dynamics k therm is closed to the hydraulic adjustment of the radiator 3. In particular, the hydraulically unfavorably located heating elements 3 can be determined on the basis of the heating dynamics k therm .
  • the parameters K (gain) and T (time constant) or the ratio K / T can also be evaluated.
  • This embodiment does not fall within the scope of the claims.
  • good hydraulic balancing of the corresponding radiator 3 can be concluded.
  • the particular temporal behavior of radiator temperatures 9 or radiator supply states VZ can be considered.
  • Fig. 6 shows the relationship between the relative heating surface mass flow ratio, which, as in Fig. 5 shown with the relative valve lift is correlated, and a Walker vomerssschreib.
  • the setpoint mass flow ratio in this example is chosen so that at 40% of the relative mass flow ratio (based on the nominal mass flow), the heating surface supply state is zero, ie an optimal heat supply is present.
  • a thermal oversupply on the heating surface, ie a Walker vomerssschreib. > 0, corresponds to a lower heating surface mass flow ratio
  • a thermal undersupply on the heating surface ie a SchunderssSullivan ⁇ 0, corresponds to a higher Schuvidge mass flow ratio than 40%.
  • Prerequisite for the implementation of the method is that the heating system 2 is turned on and provides sufficient heat to heat the rooms available.
  • the reaction consists of the stroke h of the radiator valves 11 of radiators 3 with larger values of the heating dynamics k therm (corresponds to a rapid heating of the room and thus a good heat supply )
  • the radiator room temperature controller 9 limit takes place in an iterative process until the heating dynamics k therm of all radiators 3 are approximately the same.
  • a parameterisable minimum stroke h min must not be undercut.
  • the process allows automatic adaptation to changing hydraulic conditions. Therefore, an easily manageable possibility for automatic adjustment of a heating system is created by the inventive method and the system according to the implementation of this method, which can in particular be automatically kept up to date, without a manual adjustment is required.

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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)
  • Fluid-Pressure Circuits (AREA)
  • Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
  • Air-Conditioning For Vehicles (AREA)

Claims (12)

  1. Procédé destiné à la détection d'un équilibre hydraulique d'une installation de chauffage (2) avec des radiateurs (3) reliés par un système d'écoulement de liquide (4), pour lequel pour chaque radiateur (3) une valeur caractéristique indiquant la dynamique thermique d'un espace chauffé par le radiatuer (3) est définie et les valeurs caractéristiques de plusieurs radiateurs (3) et/ou plusieurs valeurs caractéristiques se succédant dans le temps d'un radiatuer (3) sont comparées les unes aux autres pur identifier une sur-alimentation ou une sous-alimentation d'un radiateur (3), caractérisé en ce qu'une augmentation de la température ambiante est fixée à l'avance et en ce qu'on utilise comme valeur caractéristique une dynamique de chauffage (ktherm ) laquelle est définie par la consigne d'une augmentation de la température ambiante et une mesure du temps nécessaire pour le chauffage et, ou comme valeur caractéristique, le temps mort (tτ) entre la consigne d'augmentation de la température ambiante (ϑ) et le début d'un processus de chauffage.
  2. Procédé selon la revendication 1, caractérisé en ce qu'on utilise comme valeur caractéristique supplémentaire, la variation en fonction du temps des températures de radiateur (ϑ, Δlog) et/ou les états d'alimentation des radiateurs (VZ), pour lequel l'état d'alimentation des radiateurs (VZ) est une valeur dérivée d'une température de radiateur (ϑ, Δlog) et/ou de la position de robinet du radiateur (3), qui indique le besoin en chaleur du radiateur (3).
  3. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que le processus de chauffage est représenté par un élément de transmission dynamique et/ou une équation différentielle D(ϑ) du premier, du deuxième degré ou plus et en ce que les paramètres de l'élément de transmission et/ou de l'équation différentielle D(ϑ) sont évalués avec un procédé d'identification et la durée de chauffage et/ou le temps de démarrage de la phase de chauffage avant le saut de valeur théorique et la dynamique de chauffage (ktherm ) sont calculés à partir de ceux-ci.
  4. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que les valeurs caractéristiques sont déterminées simultanément pour tous les radiateurs (3).
  5. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que les valeurs caractéristiques sont déterminées sur un radiateur (3) à chaque variation de température.
  6. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que la détection de l'équilibre hydraulique a lieu de façon itérative.
  7. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce qu'après une détection de l'équilibre ou de l'état hydraulique, un équilibre hydraulique est effectué, en particulier, au moyen de la régulation de l'écoulement du liquide à travers chaque radiateur (3) après identification d'une sur- ou sous-alimentation hydraulique du radiateur (3).
  8. Système de détection d'un équilibre hydraulique d'une installation de chauffage (2) avec des radiateurs (3) traversés par un liquide avec un dispositif de saisie (10, 13) destiné à la saisie de la température ambiante (ϑ) d'un espace chauffé par un radiateur (3), d'une température de radiateur (ϑ) et/ou d'une position de robinet (h) d'un robinet de radiateur, une unité de calcul (1) pour déterminer une valeur caractéristique indiquant la dynamique thermique d'un espace chauffé par le radiateur (3) à partir de la température ambiante (ϑ) saisie, de la température de radiateur (ϑ) et/ou de la position de robinet (h) et d'un dispositif de comparaison pour comparer une valeur caractéristique aux valeurs caractéristiques d'autres radiateurs (3) et/ou de plusieurs valeurs caractéristiques se succédant dans le temps d'un radiateur (3), caractérisé en ce que l'unité de calcul (1) et le dispositif de comparaison sont agencés pour effectuer le procédé selon l'une quelconque des revendications 1 à 7.
  9. Système selon la revendication 8, caractérisé en ce que le dispositif de saisie est intégré dans un calorimètre de radiateur (13) et/ou une régulation de température ambiante individuelle (10).
  10. Système selon la revendication 8 ou 9, caractérisé en ce que l'unité de calcul (1) est intégrée dans une régulation de température ambiante individuelle, un dispositif de saisie des coûts de chauffage et/ou une unité de commande centrale (12).
  11. Système selon la revendication 10, caractérisé en ce que plusieurs régulations de température ambiante individuelles (10), dispositifs de saisie des valeurs de consommation (13) et/ou l'unité de commande centrale (12) d'un circuit de chauffage, communiquent entre eux.
  12. Système selon l'une quelconque des revendications 8 à 11, caractérisé en ce qu'un dispositif de commande est prévu pour exécuter un équilibre hydraulique en particulier en réglant le levier de robinet (h) d'un robinet de radiateur (11).
EP07017809.0A 2006-12-20 2007-09-12 Procédé et système destinés à la détection d'un équilibrage hydraulique d'une installation de chauffage Active EP1936288B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL07017809T PL1936288T3 (pl) 2006-12-20 2007-09-12 Sposób i system do wykrywania równoważenia hydraulicznego w instalacji grzewczej

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102006060324A DE102006060324A1 (de) 2006-12-20 2006-12-20 Verfahren und System zur Detektion des hydraulischen Abgleichs einer Heizungsanlage

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EP1936288A2 EP1936288A2 (fr) 2008-06-25
EP1936288A3 EP1936288A3 (fr) 2013-01-23
EP1936288B1 true EP1936288B1 (fr) 2015-07-22

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EP07017809.0A Active EP1936288B1 (fr) 2006-12-20 2007-09-12 Procédé et système destinés à la détection d'un équilibrage hydraulique d'une installation de chauffage
EP07024614.5A Active EP1936290B1 (fr) 2006-12-20 2007-12-19 Procédé et dispositif destinés à la détection de l'état hydraulique d'une installation de chauffage

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DE (1) DE102006060324A1 (fr)
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DE10312825B4 (de) * 2003-03-22 2006-01-12 Danfoss A/S Verfahren zum Einstellen mehrerer parallel geschalteter Wärmetauscher

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102015121418B3 (de) * 2015-12-09 2017-03-16 Oventrop Gmbh & Co. Kg Verfahren zum automatischen hydraulischen Abgleich von Verbrauchern in einer Heizungs- und/oder Kühlanlage
EP3179173A1 (fr) 2015-12-09 2017-06-14 Oventrop GmbH & Co. KG Procédé et système d'équilibrage hydraulique automatique de consommateurs dans une installation de chauffage ou de réfrigération
EP4004447B1 (fr) * 2019-07-25 2024-05-08 Straub Kg Dispositif de réglage et procédé permettant le réglage fin amélioré d'un jeu de soupape

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DK1936290T3 (da) 2016-01-11
EP1936290B1 (fr) 2015-09-30
PL1936288T3 (pl) 2015-12-31
EP1936290A3 (fr) 2013-01-23
EP1936290A2 (fr) 2008-06-25
PL1936290T3 (pl) 2016-06-30
DE102006060324A1 (de) 2008-07-03
DK1936288T3 (da) 2015-10-12
EP1936288A3 (fr) 2013-01-23
EP1936288A2 (fr) 2008-06-25

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