EP0957319A2 - Method for operating a closed loop heating or cooling system and a closed loop heating or cooling system - Google Patents
Method for operating a closed loop heating or cooling system and a closed loop heating or cooling system Download PDFInfo
- Publication number
- EP0957319A2 EP0957319A2 EP99109437A EP99109437A EP0957319A2 EP 0957319 A2 EP0957319 A2 EP 0957319A2 EP 99109437 A EP99109437 A EP 99109437A EP 99109437 A EP99109437 A EP 99109437A EP 0957319 A2 EP0957319 A2 EP 0957319A2
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- European Patent Office
- Prior art keywords
- return
- circuit
- flow
- direct heating
- mixing valve
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 84
- 238000001816 cooling Methods 0.000 title claims abstract description 20
- 238000000034 method Methods 0.000 title claims abstract description 15
- 239000007788 liquid Substances 0.000 claims abstract description 16
- 230000001105 regulatory effect Effects 0.000 claims abstract description 10
- 238000011144 upstream manufacturing Methods 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 16
- 239000012809 cooling fluid Substances 0.000 abstract 1
- 230000008878 coupling Effects 0.000 description 6
- 238000010168 coupling process Methods 0.000 description 6
- 238000005859 coupling reaction Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 238000005057 refrigeration Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000003071 parasitic effect Effects 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
Images
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
- 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
- F24D19/1024—Arrangement or mounting of control or safety devices for water heating systems for central heating using a valve or valves a multiple way valve
- F24D19/1033—Arrangement or mounting of control or safety devices for water heating systems for central heating using a valve or valves a multiple way valve motor operated
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
- F24F3/06—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the arrangements for the supply of heat-exchange fluid for the subsequent treatment of primary air in the room units
Definitions
- the invention relates to a method for operating a circulating liquid heating or cooling with a supply and a return line on the heat / cold generator directly connected direct heating circuit and one with the flow and the Return line of the direct heating circuit connected in parallel, by admixing its return regulated mixer circuit and a circulation liquid heating suitable for its implementation or cooling.
- a circulation water heating system with one heat generator is two different supply temperature-controlled heating circuits, the boiler will usually slide to meet the needs of the higher circuit to be tempered (direct heating circuit), while the lower one to be tempered Circuit is coupled to the direct heating circuit by a mixing valve (mixer circuit).
- Spread is the combination of radiators and underfloor heating in buildings with one Heat generators are equipped. Usually the radiators then slide controlled direct heating circuit and the underfloor heating on the mixer circuit. Of the Mixer circuit is fed from the flow water of the direct heating circuit.
- Such a circulation water heating system is known from DE 35 39 327 A1 Method for controlling a circulation water heater of a central heating system disclosed in which is the higher of the two flow temperature setpoints of the direct heating circuit and the mixer circuit serves as a reference variable for the circulating water heater.
- the object of the invention is therefore to provide a method of the type mentioned at the beginning and one its implementation to indicate suitable circulating liquid heating or cooling with which the temperature of the return in the direct heating circuit for a given boiler flow temperature and given circulating currents is lowered as far as possible or kept as high as possible.
- the process is preferably carried out so that the mixer circuit at low load fed exclusively by the return of the direct heating circuit and exclusively by Mixing of its return flow regulated and with heavy load from the flow of the heat / cold generator and the return of the direct heating circuit and fed exclusively by Mixing of these heat / cold flows is regulated, with idling as an extreme case of Low load operation and full load are to be seen as an extreme case of heavy load operation which the admixing of direct heating circuit return is regulated to zero.
- the conventional method for coupling a mixer circuit to a direct heating circuit is improved with the method according to the invention that, as a rule, a lowering the return temperature of the direct heating circuit (in refrigeration systems, an increase in Return temperature), which leads to an increase in efficiency - especially at Condensing boilers - leads.
- a lowering the return temperature of the direct heating circuit in refrigeration systems, an increase in Return temperature
- This is achieved in that at a sufficient temperature in the Mixer circuit
- return water from the direct heating circuit is fed into the mixer circuit flow water is only used when the temperature is higher or analogous to refrigeration systems with lower temperature requirements. There can be one for each suitable fluid can be used.
- a circulating liquid heating or cooling suitable for carrying out the method is According to the invention constructed so that the mixer circuit on the input side via a second controllable Three-way mixing valve with the flow and return lines of the direct heating circuit connected is.
- the three-way mixing valves are expedient because they are equipped with limit switches Actuators can be operated.
- the servomotors are advantageously mutually locked by limit switches so that only after Opening the first three-way mixing valve driven by a first servomotor Open the second three-way mixing valve driven by a second servomotor and Only after the second three-way mixing valve has been closed does the first three-way mixing valve close is possible.
- the first three-way mixing valve in the from the return of the Mixer circuit branching line a check valve and / or the second three-way mixing valve in the line branching from the inlet of the direct heating circuit and / or a check valve in the line branching off from the return of the direct heating circuit upstream and / or in the return of the direct heating circuit between the connection of the A throttle valve can be arranged in the supply and return lines of the mixer circuit.
- the two three-way mixing valves can be functionally combined to form a four-way mixing valve with three inputs and one output as well as an actuator, whereby only the first and the second or the second and the third entrance open at the same time could be.
- a particularly advantageous, industrially prefabricated solution results when the four-way mixing valve Pipe connections for the flow and return of the direct heating circuit, pipe connections for the forward and return flow of the mixer circuit and the connections of the boiler and Mixer circuit to a unit with a flow inlet, a flow outlet, one Return input and a return output of the direct heating circuit and a flow output and a return inlet of the mixer circuit.
- In the unit can also at least one upstream of the inputs of the four-way mixing valve and / or the Flow of the direct heating circuit assigned check valve and / or the return of the Direct heating circuit associated throttle valve can be integrated into the unit, so that the Unit directly between the boiler and the pumps for the two water or Coolant circuits can be set.
- Fig. 1 shows the invention in a schematic diagram.
- a pump P1 supplies the n radiators HK, which directly with the boiler flow Q1 of a heat generator WE (boiler) and the Boiler return Q4 are connected (direct heating circuit).
- the check valve ÜV1 is as Gravity brake designed for the circuit current Q2.
- At the node K1 there is a feed current Q3 of the boiler flow water for feeding into the mixer circuit of an underfloor heating system branched, which is equipped with a pump P2, the circuit current Q8 in the mixer circuit drives.
- the circuit current Q8 in the mixer circuit drives.
- this is done according to the mode described below Mix the feed water of the mixer circuit with the return flow Q7 of the underfloor heating so that any intermediate temperature is generated in the flow water of the mixer circuit can.
- the mixing valves MV1 and MV2 are to be cascaded in the following manner:
- Mixing valve MV1 not fully open and mixing valve MV2 not fully closed or return flow Q7 ⁇ 0 and feed current Q3 ⁇ 0, since the mixing valve MV1 is always fully opened before the mixing valve MV2 begins to open.
- the reverse process takes place when the mixing valve MV2 and then the mixing valve MV1 are closed.
- the mixer circuit is therefore controlled solely by adding the return flow Q7 regulated with the help of the mixing valve MV1.
- the load requirement increases above the If the limit load is exceeded, the mixer valve MV1 remains open and the return flow becomes Q7 Zero.
- the mixer valve MV2 also opens and now partially extracts water the flow of the direct heating circuit until the case occurs at full load that the water for the Flow of the mixer circuit is taken solely from the flow of the direct heating circuit.
- the pump P1 in turn supplies the n radiators HK, which are connected directly to the heat generator WE (boiler). With this arrangement, the return flow Q6 from the mixer circuit is equal to the feed current Q3 into the mixer circuit.
- the control manipulated variable acts, for example, by means of a three-point signal auf-stop-zu "on a servomotor M. However, other actuators can also be used.
- the position of the limit switches shown in FIG. 3 corresponds to the rest position, that is to say initially an overall circuit in an illegal state, since none of the servomotors M1 and M2 is in an end position.
- the boiler flow Q1 is unchanged Circular currents Q2 and Q8 in Fig. 1 lower by the amount of the feed current Q5, which is fixed Flow temperatures and fixed boiler output for the desired effect of lowering the temperature leads in the boiler return.
- the three-point steep signal can be present Control can be used because the arrangement is equivalent to the controlled variable - Flow temperature in the mixer circuit - has the same effect as in conventional coupling.
- a device is described below with reference to the symbolic representation in FIG. 4 become, which realizes the method in an economically advantageous manner. It consists in essentially from the combination of the two three-way mixing valves into a four-way mixing valve MV with a movable valve body, a drive element M at same steep behavior as described above, three inputs 1, 2 and 3 and one output 4. It is irrelevant whether the moving body is a lifting or Rotational body.
- the area of stay of an actuator not shown here is in with constant mobility three points (end point I, center point, end point II) and two areas (area I, area II) divided, which is analogous to the above definition as full load, heavy load, limit load, Low load and idle can be called.
- full load there is only one connection from input 1 to output 4
- heavy load can slide by moving the actuator any mixing ratio of inputs 1 and 2 to output 4 can be achieved
- Limit load is only a connection from input 2 to output 4
- with low load can by moving the actuator slidably any mixing ratio of the inputs 2 and 3 can be reached to output 4 and there is only a connection from input 3 when idling to exit 4.
- FIG. 5 shows the coupling of a circuit by means of a four-way mixing valve described in this way MV.
- the hydraulic system is optional with a throttle valve DV and two check valves ÜV2 and ÜV3 expanded.
- the throttle valve DV should be in both directions (return flow Q4 positive or negative) increase the pressure difference between the nodes K2 and K3 and can also without Moving parts are designed as a baffle plate or other cross-sectional constriction.
- the Check valves ÜV2 and ÜV3 act as non-return valves and are said to be parasitic Exclude circular flows.
- the arrangement can advantageously be carried out in such a way that in FIG Individual components to form an assembly with six pipe connections and one actuator are summarized.
- the arrangement can thus be used as an industrially prefabricated accessory are provided and significantly reduces the on-site assembly work.
- FIG. 6 shows a variant with a wall-mounted heat generator WE1, in which the pump P1 for driving the direct heating circuit is integrated.
- the pump P1 for driving the direct heating circuit is integrated.
- a parasitic circuit current via the lines of the boiler flow Q1 Preventing the feed streams Q3 and Q5 and the boiler return Q4 is Feed current Q5 a check valve ÜV4 provided.
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- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Steam Or Hot-Water Central Heating Systems (AREA)
- Heating, Cooling, Or Curing Plastics Or The Like In General (AREA)
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- Control Of Heat Treatment Processes (AREA)
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Abstract
Soll eine Umlaufwasserheizungsanlage mit einem Wärmeerzeuger zwei unterschiedlich temperierte Heizkreise versorgen, so wird üblicherweise der Kessel gleitend am Bedarf des höher zu temperierenden Kreises gefahren (Direktheizkreis), während der niedriger zu temperierende Kreis durch ein Mischventil an den Direktheizkreis angekoppelt wird (Mischerkreis). Die Lösung hat noch den Nachteil, daß der Wirkungsgrad des thermischen Prozesses insgesamt unbefriedigend ist. Gleiches gilt für entsprechend aufgebaute Kühlanlagen. Das Verfahren sieht vor, daß der Mischerkreis regelbar von dem Vor- und/oder dem Rücklauf des Direktheizkreises gespeist wird. Bevorzugt wird dabei der Mischerkreis bei Schwachlast ausschließlich von dem Rücklauf des Direktheizkreises gespeist und ausschließlich durch Zumischen seines Rücklaufs geregelt und bei Starklast von dem Vorlauf und dem Rücklauf des Direktheizkreises gespeist und ausschließlich durch Mischen des Vorlaufs und des Rücklaufs des Direktheizkreises geregelt. Das Verfahren eignet sich für alle Umlaufflüssigkeitsheizungen oder -kühlungen mit mehreren, unterschiedlich temperierten Heiz- bzw. Kühlkreisen und kann für beliebige Heiz- oder Kühlfluide eingesetzt werden. <IMAGE>If a circulating water heating system is to supply two heating circuits with a different temperature, the boiler is usually moved smoothly according to the needs of the higher-temperature circuit (direct heating circuit), while the lower-temperature circuit is coupled to the direct heating circuit by a mixing valve (mixer circuit). The solution still has the disadvantage that the overall efficiency of the thermal process is unsatisfactory. The same applies to appropriately designed cooling systems. The method provides that the mixer circuit is fed in a controllable manner by the flow and / or the return of the direct heating circuit. In the case of low load, the mixer circuit is preferably fed exclusively by the return of the direct heating circuit and regulated exclusively by admixing its return and, in the case of heavy load, is fed by the flow and return of the direct heating circuit and regulated exclusively by mixing the flow and return of the direct heating circuit. The process is suitable for all circulating liquid heating or cooling systems with several heating and cooling circuits at different temperatures and can be used for any heating or cooling fluid. <IMAGE>
Description
Die Erfindung betrifft ein Verfahren zum Betreiben einer Umlaufflüssigkeitsheizung oder -kühlung mit einem eine Vorlauf- und eine Rücklaufleitung aufweisenden an dem Wärme-/Kälte-erzeuger unmittelbar angeschlossenen Direktheizkreis und einem mit der Vorlauf- und der Rücklaufleitung des Direktheizkreises parallel verbundenen, durch Zumischen seines Rücklaufs geregelten Mischerkreis und eine zu dessen Durchführung geeignete Umlaufflüssigkeitsheizung oder -kühlung.The invention relates to a method for operating a circulating liquid heating or cooling with a supply and a return line on the heat / cold generator directly connected direct heating circuit and one with the flow and the Return line of the direct heating circuit connected in parallel, by admixing its return regulated mixer circuit and a circulation liquid heating suitable for its implementation or cooling.
Soll eine Umlaufwasserheizungsanlage mit einem Wärmeerzeuger zwei unterschiedlich temperierte Heizkreise versorgen, so wird üblicherweise der Kessel gleitend am Bedarf des höher zu temperierenden Kreises gefahren (Direktheizkreis), während der niedriger zu temperierende Kreis durch ein Mischventil an den Direktheizkreis angekoppelt wird (Mischerkreis). Verbreitet ist die Kombination von Heizkörpern und Fußbodenheizung in Gebäuden, die mit einem Wärmeerzeuger ausgerüstet sind. Üblicherweise werden dann die Heizkörper am gleitend geregelten Direktheizkreis betrieben und die Fußbodenheizung am Mischerkreis. Der Mischerkreis wird aus dem Vorlaufwasser des Direktheizkreises gespeist.A circulation water heating system with one heat generator is two different supply temperature-controlled heating circuits, the boiler will usually slide to meet the needs of the higher circuit to be tempered (direct heating circuit), while the lower one to be tempered Circuit is coupled to the direct heating circuit by a mixing valve (mixer circuit). Spread is the combination of radiators and underfloor heating in buildings with one Heat generators are equipped. Usually the radiators then slide controlled direct heating circuit and the underfloor heating on the mixer circuit. Of the Mixer circuit is fed from the flow water of the direct heating circuit.
Eine solche Umlaufwasserheizungsanlage ist aus der DE 35 39 327 A1 bekannt, die ein Verfahren zur Steuerung eines Umlaufwasserheizers einer Zentralheizungsanlage offenbart, bei dem der höhere der beiden Vorlauftemperatur-Sollwerte von Direktheizkreis und Mischerkreis als Führungsgröße für den Umlaufwasserheizer dient.Such a circulation water heating system is known from DE 35 39 327 A1 Method for controlling a circulation water heater of a central heating system disclosed in which is the higher of the two flow temperature setpoints of the direct heating circuit and the mixer circuit serves as a reference variable for the circulating water heater.
Die Lösung hat noch den Nachteil, daß der Wirkungsgrad des thermischen Prozesses insgesamt unbefriedigend ist. Es ist bekannt, daß der Wirkungsgrad um so höher ist, je niedriger die Temperatur des Rücklaufs bei vorgegebener Vorlauftemperatur gehalten werden kann. Analog gilt bei Kälteerzeugern, daß die Rücklauftemperatur bei gegebener Vorlauftemperatur möglichst hoch sein soll.The solution still has the disadvantage that the overall efficiency of the thermal process is unsatisfactory. It is known that the lower the efficiency, the higher the efficiency Return temperature can be maintained at a given flow temperature. Analogous applies to refrigeration generators that the return temperature for a given flow temperature if possible should be high.
Aufgabe der Erfindung ist es deshalb, ein Verfahren der eingangs genannten Art und eine zu dessen Durchführung geeignete Umlaufflüssigkeitsheizung oder -kühlung anzugeben, mit denen die Temperatur des Rücklaufes im Direktheizkreis bei gegebener Kesselvorlauftemperatur und gegebenen Kreisströmen möglichst weit abgesenkt bzw. möglichst hoch gehalten wird.The object of the invention is therefore to provide a method of the type mentioned at the beginning and one its implementation to indicate suitable circulating liquid heating or cooling with which the temperature of the return in the direct heating circuit for a given boiler flow temperature and given circulating currents is lowered as far as possible or kept as high as possible.
Erfindungsgemäß wird die Aufgabe dadurch gelöst, daß folgende drei Betriebszustände möglich
sind:
Das Verfahren wird bevorzugt so durchgeführt, daß der Mischerkreis bei Schwachlast ausschließlich von dem Rücklauf des Direktheizkreises gespeist und ausschließlich durch Zumischen seines Rücklaufs geregelt und bei Starklast von dem Vorlauf des Wärme/Kälteerzeugers und dem Rücklauf des Direktheizkreises gespeist und ausschließlich durch Mischen dieser Wärme-/Kälteströme geregelt wird, wobei Leerlauf als ein Extremfall des Schwachlastbetriebes und Vollast als ein Extremfall des Starklastbetriebes aufzufassen sind, bei denen das Zumischen von Direktheizkreis-Rücklauf auf Null geregelt ist.The process is preferably carried out so that the mixer circuit at low load fed exclusively by the return of the direct heating circuit and exclusively by Mixing of its return flow regulated and with heavy load from the flow of the heat / cold generator and the return of the direct heating circuit and fed exclusively by Mixing of these heat / cold flows is regulated, with idling as an extreme case of Low load operation and full load are to be seen as an extreme case of heavy load operation which the admixing of direct heating circuit return is regulated to zero.
Das herkömmliche Verfahren zur Ankopplung eines Mischerkreises an einen Direktheizkreis wird mit dem erfindungsgemäßen Verfahren dahin verbessert, daß im Regelfall eine Absenkung der Rücklauftemperatur des Direktheizkreises bewirkt wird (bei Kälteanlagen eine Erhöhung der Rücklauftemperatur), welche zu einer Steigerung des Wirkungsgrades - insbesondere bei Brennwertgeräten - führt. Dies wird dadurch erreicht, daß bei ausreichender Temperatur im Mischerkreis zunächst Rücklaufwasser aus dem Direktheizkreis in den Mischerkreis eingespeist wird und erst bei höherem Temperaturbedarf auf Vorlaufwasser zurückgegriffen wird bzw. analog bei Kälteanlagen bei niedrigerem Temperaturbedarf. Es kann hierfür ein jeweils geeignetes Fluid eingesetzt werden.The conventional method for coupling a mixer circuit to a direct heating circuit is improved with the method according to the invention that, as a rule, a lowering the return temperature of the direct heating circuit (in refrigeration systems, an increase in Return temperature), which leads to an increase in efficiency - especially at Condensing boilers - leads. This is achieved in that at a sufficient temperature in the Mixer circuit First, return water from the direct heating circuit is fed into the mixer circuit flow water is only used when the temperature is higher or analogous to refrigeration systems with lower temperature requirements. There can be one for each suitable fluid can be used.
Eine zur Durchführung des Verfahrens geeignete Umlaufflüssigkeitsheizung oder -kühlung ist erfindungsgemäß so aufgebaut, daß der Mischerkreis eingangsseitig über ein zweites regelbares Drei-Wege-Mischventil mit der Vorlauf- und der Rücklaufleitung des Direktheizkreises verbunden ist. A circulating liquid heating or cooling suitable for carrying out the method is According to the invention constructed so that the mixer circuit on the input side via a second controllable Three-way mixing valve with the flow and return lines of the direct heating circuit connected is.
Zweckmäßig sind die Drei-Wege-Mischventile durch mit Endschaltern ausgerüstete Stellmotoren betätigbar.The three-way mixing valves are expedient because they are equipped with limit switches Actuators can be operated.
Die Stellmotoren werden vorteilhaft gegenseitig durch Endschalter so verriegelt, daß erst nach Öffnen des von einem ersten Stellmotor angetriebenen ersten Drei-Wege-Mischventils das Öffnen des von einem zweiten Stellmotor angetriebenen zweiten Drei-Wege-Mischventils und erst nach dem Schließen des zweiten Drei-Wege-Mischventils das Schließen des ersten Drei-Wege-Mischventils ermöglicht ist.The servomotors are advantageously mutually locked by limit switches so that only after Opening the first three-way mixing valve driven by a first servomotor Open the second three-way mixing valve driven by a second servomotor and Only after the second three-way mixing valve has been closed does the first three-way mixing valve close is possible.
Vorteilhaft kann dem ersten Drei-Wege-Mischventil in der vom Rücklauf des Mischerkreises abzweigenden Leitung ein Rückschlagventil und/oder dem zweiten Drei-Wege-Mischventil in der vom Zulauf des Direktheizkreises abzweigenden Leitung und/oder in der vom Rücklauf des Direktheizkreises abzweigenden Leitung ein Rückschlagventil vorgeordnet und/oder im Rücklauf des Direktheizkreises zwischen dem Anschluß der Vorlauf- und der Rücklaufleitung des Mischerkreises ein Drosselventil angeordnet sein.The first three-way mixing valve in the from the return of the Mixer circuit branching line a check valve and / or the second three-way mixing valve in the line branching from the inlet of the direct heating circuit and / or a check valve in the line branching off from the return of the direct heating circuit upstream and / or in the return of the direct heating circuit between the connection of the A throttle valve can be arranged in the supply and return lines of the mixer circuit.
Die beiden Drei-Wege-Mischventile lassen sich fünktional zusammenfassen zu einem Vier-Wege-Mischventil mit drei Eingängen und einem Ausgang sowie einem Stellantrieb, wobei jeweils nur der erste und der zweite oder der zweite und der dritte Eingang gleichzeitig geöffnet sein können.The two three-way mixing valves can be functionally combined to form a four-way mixing valve with three inputs and one output as well as an actuator, whereby only the first and the second or the second and the third entrance open at the same time could be.
Eine besonders vorteilhafte, industriell vorzufertigende Lösung ergibt sich, wenn das Vier-Wege-Mischventil Rohranschlüsse für den Vor- und Rücklauf des Direktheizkreises, Rohranschlüsse für den Vor- und Rücklauf des Mischerkreises und die Verbindungen von Kessel- und Mischerkreislauf zu einer Baueinheit mit einem Vorlaufeingang, einem Vorlaufausgang, einem Rücklaufeingang und einem Rücklaufausgang des Direktheizkreises und einem Vorlaufausgang und einem Rücklaufeingang des Mischerkreises zusammenfaßt. In die Baueinheit kann außerdem mindestens ein den Eingängen des Vier-Wege-Mischventils vorgeordnetes und/oder dem Vorlauf des Direktheizkreises zugeordnetes Rückschlagventil und/oder dem Rücklauf des Direktheizkreises zugeordnetes Drosselventil in die Baueinheit integriert sein, so daß die Baueinheit direkt zwischen den Kessel und die Pumpen für die beiden Wasser- bzw. Kühlmittelkreisläufe gesetzt werden kann.A particularly advantageous, industrially prefabricated solution results when the four-way mixing valve Pipe connections for the flow and return of the direct heating circuit, pipe connections for the forward and return flow of the mixer circuit and the connections of the boiler and Mixer circuit to a unit with a flow inlet, a flow outlet, one Return input and a return output of the direct heating circuit and a flow output and a return inlet of the mixer circuit. In the unit can also at least one upstream of the inputs of the four-way mixing valve and / or the Flow of the direct heating circuit assigned check valve and / or the return of the Direct heating circuit associated throttle valve can be integrated into the unit, so that the Unit directly between the boiler and the pumps for the two water or Coolant circuits can be set.
Die Erfindung soll anhand von Ausführungsbeispielen nachstehend näher erläutert werden In den zugehörigen Zeichnungen zeigen
- Fig. 1
- eine Prinzipdarstellung des erfindungsgemäß an einen Direktheizkreis gekoppelten Mischerkreises einer Umlaufwasserheizung,
- Fig. 2
- eine Prinzipdarstellung der bisher bekannten Ankopplung,
- Fig. 3
- ein Beispiel für eine mögliche Schaltung der Stellmotoren der Mischventile des Mischerkreises,
- Fig. 4
- ein erfindungsgemäßes Vier-Wege-Mischventil in einer symbolhaften Darstellung und
- Fig. 5
- eine Prinzipdarstellung einer zweiten Variante der Erfindung mit einem Vier-Wege-Mischventil.
- Fig. 6
- eine Prinzipdarstellung einer Variante ähnlich der von Fig. 5, jedoch mit einem wandhängenden Wärmeerzeuger.
- Fig. 1
- 1 shows a schematic diagram of the mixer circuit of a circulating water heater coupled to a direct heating circuit,
- Fig. 2
- a schematic diagram of the coupling known to date,
- Fig. 3
- an example of a possible switching of the actuators of the mixing valves of the mixer circuit,
- Fig. 4
- an inventive four-way mixing valve in a symbolic representation and
- Fig. 5
- a schematic diagram of a second variant of the invention with a four-way mixing valve.
- Fig. 6
- a schematic diagram of a variant similar to that of Fig. 5, but with a wall-mounted heat generator.
Fig. 1 zeigt die Erfindung in einer Prinzipdarstellung. Eine Pumpe P1 versorgt die n Heizkörper HK, welche direkt mit dem Kesselvorlauf Q1 eines Wärmeerzeuger WE (Heizkessel) und dem Kesselrücklauf Q4 verbunden sind (Direktheizkreis). Das Rückschlagventil ÜV1 ist als Schwerkraftbremse für den Kreisstrom Q2 ausgebildet. Am Knoten K1 wird ein Speisestrom Q3 des Kesselvorlaufwassers zur Einspeisung in den Mischerkreis einer Fußbodenheizung abgezweigt, der mit einer Pumpe P2 bestückt ist, die den Kreisstrom Q8 im Mischerkreis antreibt. Im Drei-Wege-Mischventil MV1 wird nach dem nachfolgend beschriebenen Modus das Speisewasser des Mischerkreises mit dem Rücklaufstrom Q7 der Fußbodenheizung verschnitten, so daß im Vorlaufwasser des Mischerkreises jede beliebige Zwischentemperatur erzeugt werden kann. Fig. 1 shows the invention in a schematic diagram. A pump P1 supplies the n radiators HK, which directly with the boiler flow Q1 of a heat generator WE (boiler) and the Boiler return Q4 are connected (direct heating circuit). The check valve ÜV1 is as Gravity brake designed for the circuit current Q2. At the node K1 there is a feed current Q3 of the boiler flow water for feeding into the mixer circuit of an underfloor heating system branched, which is equipped with a pump P2, the circuit current Q8 in the mixer circuit drives. In the three-way mixing valve MV1, this is done according to the mode described below Mix the feed water of the mixer circuit with the return flow Q7 of the underfloor heating so that any intermediate temperature is generated in the flow water of the mixer circuit can.
Um die Temperatur des Rücklaufes in den Wärmeerzeuger WE bei gegebener Kesselvorlauftemperatur und gegebenen Kreisströmen Q2 und Q8 möglichst weit abzusenken, wird bei fester Kesselleistung die Wassermenge des Kesselvorlaufs Q1 möglichst klein gehalten. Da der Kreisstrom Q2 als gegeben betrachtet wird, ist der Speisestrom Q3 bzw. der Rücklaufstrom Q6 des Mischerkreises zu verringern. Dies geschieht durch eine Kombination zweier Drei-Wege-Mischventile MV1 und MV2, wobei das Mischventil MV2 und damit der Speisezulauf des Mischerkreises mit dem Vorlauf des Direktheizkreises (Speisestrom Q3) und mit dem Rücklauf des Direktheizkreises (Speisestrom Q5) verbunden ist.The temperature of the return flow in the heat generator WE at a given boiler flow temperature and lower given circulating currents Q2 and Q8 as much as possible, becomes firmer Boiler output, the amount of water in the boiler flow Q1 is kept as small as possible. Since the Circular current Q2 is considered as given, the feed current Q3 or the return current Q6 to reduce the mixer circuit. This is done by combining two three-way mixing valves MV1 and MV2, the mixing valve MV2 and thus the feed of the Mixer circuit with the flow of the direct heating circuit (feed current Q3) and with the return of the direct heating circuit (supply current Q5) is connected.
Dabei sind die Mischventile MV1 und MV2 in folgend beschriebener Art zu kaskadieren:The mixing valves MV1 and MV2 are to be cascaded in the following manner:
Wenn das Mischventil MV1 nicht vollständig geöffnet ist, dann ist das Mischventil MV2
vollständig geschlossen
wenn das Mischventil MV2 nicht vollständig geschlossen ist, dann ist das Mischventil MV1
vollständig geöffnet
if the mixing valve MV2 is not completely closed, then the mixing valve MV1 is fully open
Der Fall
Mischventil MV1 nicht vollständig geöffnet und Mischventil MV2 vollständig geschlossen
und der Fall
Mischventil MV2 nicht vollständig geschlossen und Mischventil MV1 vollständig geöffnet
Mixing valve MV1 not fully open and mixing valve MV2 completely closed
and the case
Mixing valve MV2 not fully closed and mixing valve MV1 fully open
Der Fall
Mischventil MV1 vollständig geöffnet und Mischventil MV2 vollständig geschlossen
Mixing valve MV1 fully open and mixing valve MV2 fully closed
Ausgeschlossen ist der Fall
Mischventil MV1 nicht vollständig geöffnet und Mischventil MV2 nicht vollständig geschlossen
Mixing valve MV1 not fully open and mixing valve MV2 not fully closed
Unter Vollast ist der Zustand zu verstehen, bei dem beide Mischventile MV1, MV2 vollständig geöffnet bzw. Rücklaufstrom Q7 = 0 und Speisestrom Q5 = 0 bzw. Speisestrom Q3 = Rücklaufstrom Q6 - und unter Leerlauf derjenige, bei dem beide vollständig geschlossen bzw. Speisestrom Q3 = 0 und Speisestrom Q5 = 0 sind.Full load is to be understood as the state in which both mixing valves MV1, MV2 are complete open or return flow Q7 = 0 and feed current Q5 = 0 or feed current Q3 = Return flow Q6 - and when idling, the one in which both are completely closed or Feed current Q3 = 0 and feed current Q5 = 0.
Im Schwachlastfall wird der Mischerkreis somit allein über das Zumischen des Rücklaufstroms Q7 mit Hilfe des Mischventils MV1 geregelt. Erhöht sich die Lastanforderung über den Grenzlastfall hinaus, so bleibt das Mischerventil MV1 geöffnet und der Rücklaufstrom Q7 wird Null. Das Mischerverntil MV2 öffnet zusätzlich und entnimmt nunmehr teilweise Wasser aus dem Vorlauf des Direktheizkreises, bis bei Vollast der Fall eintritt, daß das Wasser für den Vorlauf des Mischerkreises allein aus dem Vorlauf des Direktheizkreises entnommen wird.In the case of a low load, the mixer circuit is therefore controlled solely by adding the return flow Q7 regulated with the help of the mixing valve MV1. The load requirement increases above the If the limit load is exceeded, the mixer valve MV1 remains open and the return flow becomes Q7 Zero. The mixer valve MV2 also opens and now partially extracts water the flow of the direct heating circuit until the case occurs at full load that the water for the Flow of the mixer circuit is taken solely from the flow of the direct heating circuit.
Den Stand der Technik der Ankopplung eines Mischerkreises an einen Direktheizkreis mittels eines Drei- oder Vier-Wege-Mischventiles MV1 repräsentiert dagegen Fig. 2.The state of the art of coupling a mixer circuit to a direct heating circuit by means of a three- or four-way mixing valve MV1, on the other hand, represents FIG. 2.
Die Pumpe P1 versorgt wiederum die n Heizkörper HK, welche direkt mit dem Wärmeerzeuger WE (Heizkessel) verbunden sind. Bei dieser Anordnung ist der Rücklaufstrom Q6 aus dem Mischerkreis gleich dem Speisestrom Q3 in den Mischerkreis. Die Stellgröße der Regelung wirkt beispielsweise mittels eines Dreipunktsignales auf-stop-zu" auf einen Stellmotor M. Die Verwendungsmöglichkeit anderer Stellantriebe ist jedoch ebenfalls gegeben. The pump P1 in turn supplies the n radiators HK, which are connected directly to the heat generator WE (boiler). With this arrangement, the return flow Q6 from the mixer circuit is equal to the feed current Q3 into the mixer circuit. The control manipulated variable acts, for example, by means of a three-point signal auf-stop-zu "on a servomotor M. However, other actuators can also be used.
Entsprechend ist die Regelung mittels zweier Stellmotoren M1 und M2 für die Mischerventile
MV1 und MV2 der in Fig. 1 beschriebenen erfindungsgemäßen Anordnung möglich. Durch die
in Fig. 3 gezeigte Verdrahtung der Endschalter der beiden Stellmotoren M1 und M2
beispielsweise läßt sich der oben genannte Forderungskatalog erreichen und gleichzeitig ein nach
außen durchgängiger Stellantrieb für das oben beschriebene Dreipunktsignal
Die in Fig. 3 angegebene Stellung der Endschalter entspricht der Ruheposition, also zunächst einer Gesamtschaltung in einem unerlaubten Zustand, da keiner der Stellmotoren M1 und M2 sich in einer Endstellung befindet. Ein erster Wechsel im Regelspiel führt jedoch bereits dazu, daß einer der erlaubten Fälle eintritt, also das Mischventil MV1 vollständig öffnet und anschließend das nachgeschaltete Mischventil MV2 öffnet oder das Mischventil MV2 vollständig schließt und anschließend das nachgeschaltete Mischventil MV1 schließt.The position of the limit switches shown in FIG. 3 corresponds to the rest position, that is to say initially an overall circuit in an illegal state, since none of the servomotors M1 and M2 is in an end position. A first change in the rule game already leads to that one of the permitted cases occurs, ie the mixing valve MV1 opens completely and then the downstream mixing valve MV2 opens or the mixing valve MV2 completely closes and then the downstream mixing valve MV1 closes.
Gegenüber der herkömmlichen Ankopplung in Fig. 2 ist der Kesselvorlauf Q1 bei unverändertem Kreisströmen Q2 und Q8 in Fig. 1 um den Betrag des Speisestroms Q5 geringer, was bei festen Vorlauftemperaturen und fester Kesselleistung zu dem gewünschten Effekt der Temperaturabsenkung im Kesselrücklauf führt. Gleichzeitig kann das Dreipunkt-Steilsignal einer vorhanden Regelung verwendet werden, da sich die Anordnung äquivalent auf die Regelgröße - Vorlauftemperatur im Mischerkreis - auswirkt, wie in der herkömmlichen Ankopplung.Compared to the conventional coupling in Fig. 2, the boiler flow Q1 is unchanged Circular currents Q2 and Q8 in Fig. 1 lower by the amount of the feed current Q5, which is fixed Flow temperatures and fixed boiler output for the desired effect of lowering the temperature leads in the boiler return. At the same time, the three-point steep signal can be present Control can be used because the arrangement is equivalent to the controlled variable - Flow temperature in the mixer circuit - has the same effect as in conventional coupling.
Im folgenden soll anhand der symbolhaften Darstellung in Fig. 4 eine Vorrichtung beschrieben
werden, welche das Verfahren in wirtschaftlich vorteilhafter Weise verwirklicht. Sie besteht im
wesentlichen aus der Zusammenfassung der beiden Drei-Wege-Mischventile zu einem Vier-Wege-Mischventil
MV mit einem beweglichen Ventilkörper, einem Antriebselement M bei
gleichem Steilverhalten, wie oben beschrieben, drei Eingängen 1, 2 und 3 und einem Ausgang 4.
Dabei ist es unerheblich, ob es sich bei dem beweglichen Körper um einen Hub- oder
Rotationskörper handelt.A device is described below with reference to the symbolic representation in FIG. 4
become, which realizes the method in an economically advantageous manner. It consists in
essentially from the combination of the two three-way mixing valves into a four-way mixing valve
MV with a movable valve body, a drive element M at
same steep behavior as described above, three
Vielmehr ist das Mischventil durch die folgenden Eigenschaften in seiner Funktion eindeutig gekennzeichnet: Rather, the function of the mixing valve is clear due to the following properties marked:
Der Aufenthaltsbereich eines hier nicht gezeigten Stellkörpers ist bei stetiger Beweglichkeit in
drei Punkte (Endpunkt I, Mittelpunkt, Endpunkt II) und zwei Bereiche (Bereich I, Bereich II)
unterteilt, welche analog zu oben genannter Definition als Vollast, Starklast, Grenzlast,
Schwachlast und Leerlauf bezeichnet werden können. Bei Vollast besteht nur eine Verbindung
vom Eingang 1 zum Ausgang 4, bei Starklast kann durch Bewegung des Stellkörpers gleitend
jedes Mischungsverhältnis von den Eingängen 1 und 2 zum Ausgang 4 erreicht werden, bei
Grenzlast besteht nur eine Verbindung von Eingang 2 zum Ausgang 4, bei Schwachlast kann
durch Bewegung des Stellkörpers gleitend jedes Mischungsverhältnis von den Eingängen 2 und
3 zum Ausgang 4 erreicht werden und bei Leerlauf besteht nur eine Verbindung von Eingang 3
zum Ausgang 4.The area of stay of an actuator not shown here is in with constant mobility
three points (end point I, center point, end point II) and two areas (area I, area II)
divided, which is analogous to the above definition as full load, heavy load, limit load,
Low load and idle can be called. At full load there is only one connection
from
Folgende Tab. 1 soll die beschriebenen Zusammenhänge übersichtlich verdeutlichen.
Fig. 5 zeigt die Ankopplung eines Kreises mittels eines solchermaßen beschriebenen Vier-WegeMischventiles MV.5 shows the coupling of a circuit by means of a four-way mixing valve described in this way MV.
Die Hydraulik ist hier optional um ein Drosselventil DV sowie zwei Rückschlagventile ÜV2 und ÜV3 erweitert. Das Drosselventil DV soll in beide Richtungen (Rücklaufstrom Q4 positiv oder negativ) die Druckdifferenz zwischen den Knoten K2 und K3 erhöhen und kann auch ohne bewegliche Teile als Stauscheibe oder andere Querschnittsverengung ausgeführt werden. Die Rückschlagventile ÜV2 und ÜV3 wirken als Rückflußverhinderer und sollen parasitäre Kreisströmungen ausschließen.The hydraulic system is optional with a throttle valve DV and two check valves ÜV2 and ÜV3 expanded. The throttle valve DV should be in both directions (return flow Q4 positive or negative) increase the pressure difference between the nodes K2 and K3 and can also without Moving parts are designed as a baffle plate or other cross-sectional constriction. The Check valves ÜV2 and ÜV3 act as non-return valves and are said to be parasitic Exclude circular flows.
Die Anordnung kann vorteilhaft so ausgeführt werden, daß in Fig. 5 gestrichelt umrandeten Einzelbauteile zu einer Baugruppe mit sechs Rohranschlüssen und einem Stellantrieb räumlich zusammengefaßt sind. Die Anordnung kann so als industriell vorgefertigtes Zubehör bereitgestellt werden und reduziert den bauseitigen Montageaufwand erheblich. The arrangement can advantageously be carried out in such a way that in FIG Individual components to form an assembly with six pipe connections and one actuator are summarized. The arrangement can thus be used as an industrially prefabricated accessory are provided and significantly reduces the on-site assembly work.
Fig. 6 schließlich zeigt eine Variante mit einem wandhängenden Wärmeerzeuger WE1, in dem die Pumpe P1 zum Antrieb des Direktheizkreises integriert ist. Um im Starklastfall, d.h. bei Q3 ≠ 0 und Q5 ≥ 0, einen parasitären Kreisstrom über die Leitungen des Kesselvorlaufs Q1, der Speiseströme Q3 und Q5 sowie des Kesselrücklaufs Q4 zu verhindern, ist im Speisestrom Q5 ein Rückschlagventil ÜV4 vorgesehen.6 shows a variant with a wall-mounted heat generator WE1, in which the pump P1 for driving the direct heating circuit is integrated. In the case of heavy loads, i.e. at Q3 ≠ 0 and Q5 ≥ 0, a parasitic circuit current via the lines of the boiler flow Q1, Preventing the feed streams Q3 and Q5 and the boiler return Q4 is Feed current Q5 a check valve ÜV4 provided.
Claims (12)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SI9930555T SI0957319T1 (en) | 1998-05-12 | 1999-05-11 | Method for operating a closed loop heating or cooling system and a closed loop heating or cooling system |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19821256 | 1998-05-12 | ||
DE19821256A DE19821256C5 (en) | 1998-05-12 | 1998-05-12 | A method of operating recirculating liquid heating or cooling and circulating liquid heating or cooling |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0957319A2 true EP0957319A2 (en) | 1999-11-17 |
EP0957319A3 EP0957319A3 (en) | 2002-02-13 |
EP0957319B1 EP0957319B1 (en) | 2004-02-25 |
Family
ID=7867522
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP99109437A Expired - Lifetime EP0957319B1 (en) | 1998-05-12 | 1999-05-11 | Method for operating a closed loop heating or cooling system and a closed loop heating or cooling system |
Country Status (7)
Country | Link |
---|---|
EP (1) | EP0957319B1 (en) |
AT (1) | ATE260448T1 (en) |
DE (1) | DE19821256C5 (en) |
DK (1) | DK0957319T3 (en) |
ES (1) | ES2216373T3 (en) |
PL (1) | PL192376B1 (en) |
SI (1) | SI0957319T1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1304528A1 (en) * | 2001-10-15 | 2003-04-23 | R.D.Z. S.p.A. | Distribution Module for Heating or Cooling Circuit |
EP1614944A1 (en) | 2004-07-06 | 2006-01-11 | HG Baunach GmbH & Co KG | Multiple way valve or distribution valve |
WO2009147136A1 (en) | 2008-06-07 | 2009-12-10 | Uponor Innovation Ab | Line arrangement for tempering two tempering circuits of buildings |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10245571B4 (en) | 2002-03-26 | 2019-04-04 | Hg Baunach Gmbh & Co Kg | More ways mixing valve assembly |
DE10245572B4 (en) * | 2002-03-26 | 2016-06-09 | Hg Baunach Gmbh & Co Kg | Heating system with a multi-way mixing valve |
DE10214242B4 (en) * | 2001-03-26 | 2014-10-23 | Hg Baunach Gmbh & Co Kg | Multi-way mixing valve and method for its timing |
EP1245905A3 (en) | 2001-03-26 | 2003-09-17 | HG Baunach GmbH & Co KG | Pipe set, having plural pipes for connecting to a multiple way valve |
DE102006017286B4 (en) * | 2006-04-12 | 2009-12-03 | Schneider, Franz, Dipl.-Ing. (Fh) | Circuit for reducing the return temperature for two heating circuits with different temperature levels |
DE202006019415U1 (en) | 2006-12-22 | 2007-04-05 | Watts Industries Deutschland Gmbh | Arrangement used for feeding high temperature and low temperature user circuit, comprises selective distribution coupling assembled of three hollow cubical elements |
DE102009007053A1 (en) * | 2008-01-28 | 2009-08-06 | Hg Baunach Gmbh & Co Kg | Control or regulation of a heating system and heating system |
AT517246B1 (en) | 2009-02-18 | 2024-06-15 | Baunach Hans Georg | HEATING OR COOLING SYSTEM AND METHOD FOR OPERATING A HEATING OR COOLING SYSTEM |
WO2010099793A2 (en) | 2009-03-03 | 2010-09-10 | Hans-Georg Baunach | Heating system or cooling system and method for operating heating systems or cooling systems |
DE102012024583A1 (en) | 2012-12-17 | 2014-06-18 | Meibes System-Technik Gmbh | Multi-circuit heating or cooling system with buffer memory, device for controlling and / or regulating a multi-circuit heating or cooling system with buffer memory and method for operating a multi-circuit heating or cooling system with Bufferspeic |
DE102012024586A1 (en) | 2012-12-17 | 2014-06-18 | Meibes System-Technik Gmbh | Multi-circuit heating or cooling system with multi-way mixing valve and device for controlling and / or regulating a multi-circuit heating or cooling system |
DE102013005691B4 (en) | 2013-04-03 | 2018-03-15 | Franz Schneider | Method for connecting heating circuits with different temperature levels in a dynamic system in series |
CN103528110A (en) * | 2013-10-12 | 2014-01-22 | 新疆明和节能科技有限公司 | Heat supply system for community |
DE202014011121U1 (en) * | 2014-05-30 | 2017-12-22 | Peter Gabanyi | Room temperature control for a surface heating |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3539327A1 (en) | 1984-11-16 | 1986-05-22 | Joh. Vaillant Gmbh U. Co, 5630 Remscheid | Method of controlling a heat source and control device for implementing the method |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2733822B1 (en) * | 1995-05-05 | 1998-10-02 | Financ & Comm Chablais | DISTRIBUTION MODULE FOR CENTRAL HEATING SYSTEM WITH HEATED FLOOR AND RADIATORS |
-
1998
- 1998-05-12 DE DE19821256A patent/DE19821256C5/en not_active Expired - Lifetime
-
1999
- 1999-05-11 AT AT99109437T patent/ATE260448T1/en active
- 1999-05-11 DK DK99109437T patent/DK0957319T3/en active
- 1999-05-11 EP EP99109437A patent/EP0957319B1/en not_active Expired - Lifetime
- 1999-05-11 ES ES99109437T patent/ES2216373T3/en not_active Expired - Lifetime
- 1999-05-11 SI SI9930555T patent/SI0957319T1/en unknown
- 1999-05-12 PL PL333089A patent/PL192376B1/en unknown
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3539327A1 (en) | 1984-11-16 | 1986-05-22 | Joh. Vaillant Gmbh U. Co, 5630 Remscheid | Method of controlling a heat source and control device for implementing the method |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1304528A1 (en) * | 2001-10-15 | 2003-04-23 | R.D.Z. S.p.A. | Distribution Module for Heating or Cooling Circuit |
EP1614944A1 (en) | 2004-07-06 | 2006-01-11 | HG Baunach GmbH & Co KG | Multiple way valve or distribution valve |
WO2009147136A1 (en) | 2008-06-07 | 2009-12-10 | Uponor Innovation Ab | Line arrangement for tempering two tempering circuits of buildings |
CN102057225A (en) * | 2008-06-07 | 2011-05-11 | 欧博诺创新公司 | Line arrangement for tempering two tempering circuits of buildings |
CN102057225B (en) * | 2008-06-07 | 2013-10-30 | 欧博诺创新公司 | Line arrangement for tempering two tempering circuits of buildings |
Also Published As
Publication number | Publication date |
---|---|
EP0957319A3 (en) | 2002-02-13 |
ATE260448T1 (en) | 2004-03-15 |
ES2216373T3 (en) | 2004-10-16 |
PL192376B1 (en) | 2006-10-31 |
PL333089A1 (en) | 1999-11-22 |
DE19821256C5 (en) | 2011-02-24 |
DE19821256C1 (en) | 1999-09-16 |
DK0957319T3 (en) | 2004-06-28 |
SI0957319T1 (en) | 2004-08-31 |
EP0957319B1 (en) | 2004-02-25 |
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