EP2281151B1 - Heizsystem mit expansionsvorrichtung - Google Patents

Heizsystem mit expansionsvorrichtung Download PDF

Info

Publication number
EP2281151B1
EP2281151B1 EP09734468.3A EP09734468A EP2281151B1 EP 2281151 B1 EP2281151 B1 EP 2281151B1 EP 09734468 A EP09734468 A EP 09734468A EP 2281151 B1 EP2281151 B1 EP 2281151B1
Authority
EP
European Patent Office
Prior art keywords
valve
liquid
pressure
assembly
pump
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP09734468.3A
Other languages
English (en)
French (fr)
Other versions
EP2281151A2 (de
Inventor
Dimitri Wasil Kemper
Jan Henk Cnossen
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Flamco BV
Original Assignee
Flamco BV
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Flamco BV filed Critical Flamco BV
Publication of EP2281151A2 publication Critical patent/EP2281151A2/de
Application granted granted Critical
Publication of EP2281151B1 publication Critical patent/EP2281151B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • F24D3/00—Hot-water central heating systems
    • F24D3/10—Feed-line arrangements, e.g. providing for heat-accumulator tanks, expansion tanks ; Hydraulic components of a central heating system
    • 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
    • F24D3/00—Hot-water central heating systems
    • F24D3/10—Feed-line arrangements, e.g. providing for heat-accumulator tanks, expansion tanks ; Hydraulic components of a central heating system
    • F24D3/1008—Feed-line arrangements, e.g. providing for heat-accumulator tanks, expansion tanks ; Hydraulic components of a central heating system expansion tanks
    • 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
    • F24D3/00—Hot-water central heating systems
    • F24D3/10—Feed-line arrangements, e.g. providing for heat-accumulator tanks, expansion tanks ; Hydraulic components of a central heating system
    • F24D3/1008—Feed-line arrangements, e.g. providing for heat-accumulator tanks, expansion tanks ; Hydraulic components of a central heating system expansion tanks
    • F24D3/1016—Tanks having a bladder
    • 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
    • F24D2220/046—Pressure sensors

Definitions

  • the invention relates to a heat transport system with an assembly of a cold or heat source having connected thereto a conduit system with heat exchangers, and an expansion device connected to the assembly.
  • the heat transport system is here of a type which functions with a closed liquid circuit along the heat exchangers and the cold or heat source and under pressure during operation.
  • Incorporated on the one hand as source in the liquid circuit is a heating boiler or cold pump or the like in which heat or cold is fed to the liquid circulating in the circuit.
  • Incorporated on the other hand in the liquid circuit are radiators and/or convectors or other heat exchangers by means of which cold or heat is relinquished from the liquid to spaces for cooling or heating.
  • An air transport system can be applied instead of or in addition to convectors and radiators.
  • the invention likewise relates to a cooling installation although, for the sake of the readability of the application, the invention is described herein below only with reference to a heating device.
  • Devices of this type comprise an expansion device, usually comprising a liquid reservoir or expansion tank, which takes up the extra volume of liquid created by expansion resulting from heating of the liquid.
  • an expansion device usually comprising a liquid reservoir or expansion tank, which takes up the extra volume of liquid created by expansion resulting from heating of the liquid.
  • a safety valve is mounted in order to prevent an overpressure in the liquid circuit or the assembly.
  • a heating device of this type is described in the European patent (application)s EP 0947777 and EP 0740759 or NL 9400106 .
  • a feature of this expansion device known from said documents is that a lower pressure prevails in the reservoir or expansion tank relative to the pressure in the liquid circuit (assembly). For this reason a pump is used to return liquid into the assembly with the liquid circuit during cooling.
  • This pump is situated in a connecting conduit between the assembly with the liquid circuit and the expansion device, and is intended to overcome the pressure difference between the liquid in the reservoir of the expansion device and the liquid in the assembly with the liquid circuit.
  • the liquid can flow into the expansion device from the assembly with the liquid circuit where the higher pressure prevails, to the expansion tank or reservoir of the expansion device until the pressure in the assembly with the liquid circuit has reached a desired lower value.
  • the pump and the valve can be activated by a switch mechanism or control, wherein a small decrease or increase in pressure in the assembly with the liquid circuit activates respectively the pump or the valve.
  • the valve must be equipped for this purpose with an auxiliary drive.
  • the pressure regulation of the assembly with the liquid circuit has hereby become automatic. The pressure of the liquid in the assembly will continue to be held constant within a desired, usually small bandwidth.
  • a great problem in dimensioning of the pump and the valve in the known configurations is that undesirable hydraulic effects can occur. If a pump capacity is too great, a pressure can rise uncontrollably high in the assembly with the liquid circuit. Too small a choice of pump capacity has the consequence that, as a result of the decrease in the liquid volume, the cooling process in the assembly with the liquid circuit cannot be followed, resulting in too low a pressure in the assembly with the liquid circuit.
  • a valve dimensioned too large allows the pressure in the assembly with the liquid circuit to fall uncontrolledly quickly.
  • pressure in the assembly with the liquid circuit can possibly rise too high when, due to rapid heating, the expansion of the liquid in the assembly with the liquid circuit proceeds more rapidly than the quantity of liquid which can be discharged via the valve from the assembly with the liquid circuit to the reservoir or expansion tank of the expansion device.
  • control of the pressure in the assembly with the liquid circuit will not be achieved without problem, and undesirable defects can occur as a result of extreme pressure peaks.
  • Both the pump and the valve in the connecting conduit between the assembly with the liquid circuit and the expansion device are in practice usually dimensioned too large, and are subsequently modified to the specific conditions by additional measures.
  • a measure can consist of a soft-start control with which the pump motor is brought slowly to speed, or a load-dependent rotation speed control by means of for instance a frequency converter.
  • a hand-operated second valve with choke function can be arranged connected in series to the valve in order to realize a desired liquid speed.
  • the expansion device comprises an expansion tank with a pump connected thereto for the purpose of carrying heat transfer fluid selectively to the assembly during operation of the pump, and that the valve with variable opening is connected via a check valve to a suction side of the pump, between supply and return conduits connecting the tank with the system.
  • the valve with variable opening is connected via a check valve to a suction side of the pump, between supply and return conduits connecting the tank with the system.
  • the air present in pump is however discharged even without (float) vent, but then disappears into the system and is subsequently removed via system vent(s), or will eventually be degassed as a result of the improved degassing measures according to the invention.
  • FIG. 1 shows how automatic pressure regulation takes place in hydraulic-mechanical manner in expansion device 1 according to the invention.
  • a pressure sensor 11 transmits the system pressure in the assembly with liquid circuit 25 to a usually electronically controlled (not shown) control unit with which expansion device 1 is actuated. Because of temperature variations in the assembly with liquid circuit 25, the volume of the liquid present therein is subject to changes. An increase in the liquid volume will cause a pressure increase in the assembly with liquid circuit 25, and the reverse takes place when the liquid volume decreases.
  • pump 4 and a valve 24 with variable passage, in particular controllable valve 5 in combination with valve 24 the liquid volume in liquid circuit 25, and consequently the system pressure therein, can be held almost constant, or at least constant within a predetermined bandwidth.
  • Figure 3 shows the overall control of the pressure regulation.
  • the cycle time T On the x-axis of figure 3 is shown the cycle time T and on the y-axis the system pressure P.
  • the ideal system pressure is shown on the horizontal line indicated with S.
  • the immediately adjacent lines parallel to this line are those at which valve 24 with variable passage is activated.
  • the parallel outer lines relate to the extreme (upper and lower) limit values for the installation pressure in the assembly with liquid circuit 25 which is still allowable relative to the ideal pressure according to line S in the graph of figure 3 . If we follow the curved broken line, which symbolizes an imaginary system pressure reading from pressure sensor 11, upward from the left, we then see how, when the first parallel line is passed, valve 24 with variable passage is activated to the 'closed' position.
  • valve 5 is opened and simultaneously herewith valve 24 with variable passage is activated to the 'open' position (from the closed position).
  • the variable passage of valve 24 will always reciprocate in slowed manner from the closed position to the opened position, and vice versa.
  • This slowing effect slow reciprocation between closed and open
  • a time duration between the open and closed position of the variable passage of valve 24 can amount to as much as about 10 seconds or more, although a shorter time duration need not be a problem. In the case of a faster action valve the movement of the drive can after all be repeatedly interrupted.
  • valve 24 with variable opening is opened slowly or is at least gradually opened increasingly further.
  • Valve 5 closes at the moment the ideal system pressure is reached in liquid circuit 25.
  • the variable opening of valve 24 is activated (further) to the 'open' position as soon as the first parallel line below the ideal pressure line is reached.
  • Pump 4 is activated when the extreme (lower) limit value for the system pressure in the assembly with liquid circuit 24 has been reached.
  • Valve 24 is also activated, with variable opening from fully open to the closed position.
  • Figure 1 subsequently shows how the liquid can be circulated via connecting conduits 6 and 7 and the assembly with liquid circuit 25 without the installation pressure changing. This is possible because the variable opening of valve 24 is still situated in opened position. By making the variable passage of valve 24 smaller, the desired pressure increase in the system pressure in liquid circuit 25 is eventually reached or, if this takes place sooner, the desired system pressure. The variable opening of valve 24 remains in the position reached.
  • figure 1 shows a liquid circuit 25 with a conventional expansion device 2 without the new valve with variable passage 24.
  • a particular feature of expansion device 1 in figure 1 is that reservoir 3 is embodied without membrane 27 as utilized in the known configuration according to figure 2 .
  • the particular embodiment of expansion device 1 makes it possible to generate a below-atmospheric pressure at liquid levels in the lower part of reservoir 3, whereby degassing of the liquid can be effected very well.
  • valve 24 can be embodied with a position recognition, whereby it is possible to pre-activate the desired passage to a desired position (from the control unit). It is however also possible to apply a simple drive without position indication for valve 24 with variable passage. In this case the control unit (not shown) measures the speed or liquid flow and adjusts the variable passage of valve 24 thereto.
  • valve 5 When a valve 5 with a greater capacity than required is applied in pump 4, it is readily possible using the variable passage of valve 24 to operate a large operating range of smaller heating or cooling systems, such as liquid circuit 25, using a standard version of expansion device 1.
  • a further important advantage of the invention relates to setting of expansion device 1 of figure 1 into operation.
  • the assembly with liquid circuit 25 and expansion device 1 will - even after being fully filled with liquid - possibly contain enclosed quantities of gas at vital parts such as a pump 4, and therefore be unable to function.
  • a pump 4 be vented and fully filled with water without manual intervention being necessary.
  • valve 24 By holding valve 24 with variable passage in fully opened position it is necessary to wait a short time to vent enclosed gases via vent 19, for instance a float vent associated with pump 4, and to then start pump 4.
  • This pump 4 can now circulate water substantially without pressure difference via connecting conduits 6 and 7 and liquid circuit 25 until all enclosed gases have been removed. Once filled with liquid, pump 4 is fully operational.
  • check valve 28 is further arranged between valve 24 with variable passage, in particular (as shown more clearly in figure 4 ) a motor valve 24, and pump 4.
  • check valve 28 serves, during intake of water from assembly 25 to expansion tank 3, to prevent water flowing in opposite direction through pump 4, this being undesirable.
  • expansion device 30 according to figure 4 further differs from that of figure 1 in that check valve 28 with the whole connection between motor valve 24 and the suction side of pump 4 is removed. Many of the advantages intended with the device can then still be realized.
  • the expansion device 31 differs again from that of figures 1 and 4 in that a pressure-regulated valve 29 is arranged, in particular parallel to valve 24 with variable and preferably also adjustable passage and to the usual valve 5 or shutter for intake of liquid from assembly 25.
  • a pressure-regulated valve 29 is arranged, in particular parallel to valve 24 with variable and preferably also adjustable passage and to the usual valve 5 or shutter for intake of liquid from assembly 25.
  • An additional overpressure safety can hereby be realized, wherein the pressure-regulated safety valve 29 is opened at a fixed preset pressure value in assembly 25 with liquid circuit 25 in order to admit liquid from the assembly to expansion device 31, and in particular expansion tank 3 (not shown in figure 5 ) .
  • connection can also be arranged from motor valve 24 to the suction side of pump 4, as in the configuration according to figure 1 .
  • the embodiment of figure 6 differs from the foregoing embodiments in that pump 4 is incorporated in a pump unit 32 having therein motor valve 4, non-return valves 12, 28 and the driven valve 5.
  • a temperature sensor 33 is moreover arranged in the same pump unit.
  • a compact configuration of the whole expansion device 34 can be realized by providing these elements in a combined unit 32.
  • a measuring sensor 10 measures the weight of the whole expansion tank 3. By determining the weight of the expansion tank beforehand, i.e. without it being filled with heat transfer liquid, the amount of water (liquid) in expansion tank 3 can be derived in simple manner on the basis of the change in weight of expansion tank 3 with water therein. The filling level can thus also be derived, this in relation to the volume of expansion tank 3.
  • a further pressure sensor 35 is herein arranged which measures the pressure in the gas part of expansion tank 3.
  • Two valves are arranged here in combination with pressure sensor 35. These two valves 36,37 serve to draw in air or to allow escape of air subject to a pressure recorded by pressure sensor 35. The operation is as follows.
  • air can be drawn in via valve 36 in the case of a fall in the pressure in the expansion tank of for instance 0.3 bar.
  • second valve 37 is opened to allow this excess to escape.
  • Such a higher pressure in the gas in the expansion tank is for instance the result of an increase in the expansion liquid in expansion tank 3.
  • Air or gas at atmospheric pressure can thus be blown off.
  • An operating pressure in expansion tank 3 lies here between -0.3 and 0 bar relative to the atmospheric pressure. A considerable improvement can thus be provided for the purpose of degassing of heat transfer liquid. This is because an additional method can thus be provided for degassing the heat transfer fluid in expansion tank 3 relative to the already provided option with float valve 22.
  • the embodiment of 40 of figure 9 shows a strong resemblance to the embodiment of figure 6 , but differs therefrom in respect of the following aspects and features.
  • a pressure sensor 41 measures the pressure in the water section in expansion tank 3, 26 from a lowest point.
  • a second pressure sensor 38 measures the pressure in a liquid column 39, the end of which extends into the centre of expansion tank 3, 26. Because water from liquid circuit 25 flows into expansion tank 3, 26 via liquid column 39 at each intake, column 39 continuously remains almost wholly filled with water. The liquid level or volume of the water in the water section in expansion tank 3, 26 will always vary in response to the temperature in liquid circuit 25.
  • the liquid level is the same at the outflow end of liquid column 39, halfway along expansion tank 3, 26.
  • the liquid level or the volume in the upper half of expansion tank 3, 26 can then be derived from historical measurement values relating to the lower half, and relates to liquid column 39 increased by the gas pressure.
  • the liquid column can further be provided with measures to further enhance degasification, such as turbulence generating means for the purpose of further enhancing release of gases from the liquid.
  • turbulence generating means can thus be formed by ratchet rings in liquid column 39.
  • Typical of the measured pressure values in the upper part of expansion tank 3, 26 is that the pressures of both pressure sensors 41, 38 will always equal each other because the same liquid column with gas pressure is applicable.
  • Valve 36 with which air can be drawn in, is in this embodiment a spring-loaded valve which opens in one direction at a pressure difference of preferably 0.3 bar, and remains closed in the opposite direction.
  • Valve 37 along which air can escape, opens in one direction almost without pressure difference, and remains closed in an opposite direction.
  • an excess of gas in expansion tank 3, 26 can result in opening of second valve 37 in order to allow this excess to escape.
  • the just above-atmospheric pressure in the gas in the expansion tank is for instance the result of an increase in the expansion liquid in expansion tank 3, 26.
  • Air or gas which has separated from the water as a result of the low pressure, and is situated in the water section of expansion tank 3, 26, can thus be blown off at atmospheric pressure via vent or float valve 22.
  • an operating pressure in expansion tank 3 also lies here between -0.3 and 0 bar relative to atmospheric pressure as maintained in expansion tank 26 of figure 2 .
  • a considerable improvement can thus be provided for the purpose of degassing heat transfer liquid.
  • valves 36, 37, as well as being controlled in mechanical manner as a spring-loaded embodiment can also be controlled by a switching mechanism or control in interaction with the recorded pressure in expansion tank 3, 26.
  • Figures 7 and 8 each show three situations demonstrating how unique the positioning of motor valve 24 is in combination with the other components of expansion device 1.
  • FIG. 10 A particular embodiment not covered by the the invention is shown in figure 10 .
  • the incoming flow of liquid into the expansion device from the installation is regulated here by a water dynamo 42.
  • a water dynamo 42 comprises a water motor which drives a generator with which electric current can be generated.
  • An additional great advantage is that the electricity supply can be used for feedback to the mains or to charge a battery with which the control system with a number of basic functions such as valve control can be powered.
  • control system can have available a self-generated operating voltage, this provides, in addition to an energy-saving, a greater operational reliability, for instance in the case of (mains) power outage.
  • additional energy will be supplied in order to fill a system with liquid from a pressureless expansion tank, although a large part of the energy required for the general control, such as keeping this system to pressure, replenishing and degassing activities, can be covered with the energy generated by water dynamo 42.
  • a water dynamo 42 is also incorporated in figure 11 .
  • the functions and advantages of water dynamo 42 in figure 11 are the same as that of figure 10 , with the difference that water dynamo 42 is not connected to the inlet of the pump. The pump cannot therefore be vented in the above described manner.
  • a tube 43 is further arranged under vent 22 (embodied here with protection against return flow) on the expansion tank, relating to an embodiment with a membrane.
  • a water motor can be manipulated to form a variable liquid passage using a braking device.
  • a braking device There is no energy-saving advantage here, although a lower cost price can however be realized with this simplified method.
  • a position, particularly of motor valve 24, recorded with one or other sensor and transmitted to the relevant control unit can be useful in respect of recording operating modes, subsequent monitoring, for instance after a breakdown, and normal operating modes.
  • Such a recorded position can moreover be preset and utilized in a determined operating mode, at least if such an operating mode is detected by approximation. Fine adjustment relative to such a recorded value can then take place easily without an interactive process requiring different iterations in order to arrive at a desired setting of the motor valve. This contributes toward the simplicity and therefore elegance of the activation and the control and the monitoring of motor valve 24.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Details Of Reciprocating Pumps (AREA)
  • Steam Or Hot-Water Central Heating Systems (AREA)

Claims (4)

  1. Wärmetransport-System, umfassend:
    - ein Heizungssystem, umfassend eine Anordnung (25) aus einer Kälte- oder Wärmequelle und einem Leitungssystem mit Wärmetauschern, das mit der Quelle verbunden ist und
    - eine mit der Anordnung verbundene Ausdehnungs-Vorrichtung (1), wobei ein Ventil (8; 24; 42) mit variabler Öffnung zwischen dem Heizungssystem und der Ausdehnungs-Vor-richtung in einer ersten Leitung (7) angeordnet ist, entlang der das Wärmetransfer-Medium von dem Heizungssystem zu der Expansions-Vorrichtung geführt wird, wobei
    die Ausdehnungs-Vorrichtung (1) ein Ausdehnungs-Gefäß mit einer Pumpe (4) umfaßt, die damit in einer zweiten Leitung (6) verbunden ist, entlang der das Wärmetransfer-Medium von der Ausdehnungs-Vorrichtung zu dem Heizungssystem geführt wird zum Zwecke des wahlweisen Führens eines Wärmetransfer-Fluids zu der Anordnung (25) während des Betriebs der Pumpe (4), dadurch gekennzeichnet, dass
    das Ventil (8; 24; 42) mit variabler Öffnung über ein Rückschlag-Ventil (28) mit einer Ansaugseite der Pumpe (4) zwischen der ersten Leitung (7) und der zweiten Leitung (6) verbunden ist.
  2. Wärmetransport-System nach wenigstens Anspruch 1, wobei ein druckreguliertes Ventil parallel zu dem Ventil mit variabler Öffnung (8; 24; 42) angeordnet ist als Schutz gegen einen Überdruck in der Anordnung.
  3. Wärmetransport-System nach wenigstens einem der vor vorstehenden Ansprüche, wobei das Ventil mit variablem Durchgang (8; 24; 42) ein Motorventil umfaßt.
  4. Ausdehnungs-Vorrichtung, die geeignet ist für ein Wärmetransport-System, das ein Heizungssystem umfaßt, mit einer Anordnung (25) aus einer Kälte- oder Wärmequelle und einem Leitungssystem mit Wärmetauschern, das mit der Quelle verbunden ist, wobei die Ausdehnungs-Vorrichtung (1) mit der Anordnung verbunden ist, wobei ein Ventil (8; 24; 42) mit variabler Öffnung zwischen dem Heizungssystem und der Ausdehnung-. Vorrichtung in einer ersten Leitung (7) angeordnet ist, entlang der das Wärmetransfer-Medium von dem Heizungssystem zu der Ausdehnungs-Vorrichtung geführt wird, wobei die Ausdehnungs-Vor-richtung ein Ausdehnungs-Gefäß mit einer daran angeschlossenen Pumpe (4) in einer zweiten Leitung (6) umfaßt, entlang der das Wärmetransfer-Medium von der Ausdehnungs-Vorrichtung zu dem Heizungssystem geführt wird zum Zwecke des wahlweisen Führens eines Wärmetransfer-Fluids zu der Anordnung (25) während des Betriebs der Pumpe (4), dadurch gekennzeichnet, dass das Ventil (8; 24; 42) mit variabler Öffnung über ein Rückschlag-Ventil (28) mit einer Ansaugseite der Pumpe (4) zwischen der ersten Leitung (7) und der zweiten Leitung (6) verbunden ist.
EP09734468.3A 2008-04-24 2009-04-22 Heizsystem mit expansionsvorrichtung Active EP2281151B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
NL1035341 2008-04-24
NL1036252A NL1036252C2 (nl) 2008-04-24 2008-11-28 Verwarmingssysteem met expansie-inrichting.
PCT/NL2009/050215 WO2009131450A2 (en) 2008-04-24 2009-04-22 Heating system with expansion device

Publications (2)

Publication Number Publication Date
EP2281151A2 EP2281151A2 (de) 2011-02-09
EP2281151B1 true EP2281151B1 (de) 2018-06-06

Family

ID=41217305

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09734468.3A Active EP2281151B1 (de) 2008-04-24 2009-04-22 Heizsystem mit expansionsvorrichtung

Country Status (3)

Country Link
EP (1) EP2281151B1 (de)
NL (1) NL1036252C2 (de)
WO (1) WO2009131450A2 (de)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013044507A (ja) * 2011-08-26 2013-03-04 Panasonic Corp ヒートポンプ式温水装置
NL2011333C2 (nl) * 2013-08-23 2015-02-24 Flamco Bv Werkwijze en inrichting voor ontgassing.
JP6655898B2 (ja) * 2015-01-20 2020-03-04 大阪瓦斯株式会社 排熱回収装置及び熱供給システム及び排熱回収装置の運転方法
JP6451535B2 (ja) * 2015-07-14 2019-01-16 株式会社デンソー 熱管理装置
IT201900016181A1 (it) * 2019-09-12 2021-03-12 Dab Pumps Spa Vaso di espansione con membrana e pompa comprendente tale vaso di espansione

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2505459A1 (fr) * 1981-05-05 1982-11-12 Amblard Francois Ensemble de raccordement entre un generateur de chaleur principal et un generateur d'appoint ou de remplacement, parcourus par un meme fluide caloporteur
DE4407936A1 (de) * 1993-03-12 1994-09-15 Stuecklin & Cie Ag Druckhaltevorrichtung für geschlossene Heizungs- oder Kühlkreisläufe
EP1102012A2 (de) * 1999-11-17 2001-05-23 Anton Eder Entgasungseinrichtung

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE740756A (fr) * 1969-04-21 1970-04-01 Systeme combine de vase d'expansion et de vase de garde pour installation utilisant des fluides caloporteurs.
NL7612644A (en) * 1976-11-12 1978-05-17 Flamco Bv Central heating system expansion vessel - has gas cushion below system pressure and directly in contact with liq.
AT381377B (de) * 1985-03-14 1986-10-10 Eder Anton Gmbh Druckausgleichsvorrichtung fuer heizanlagen od. dgl.
EP0313599B1 (de) * 1987-05-05 1991-10-23 A. Schwarz + Co. Vorrichtung zur expansionsübernahme in flüssigkeitskreislaufsystemen, insbesondere von heizungs- oder kühlanlagen
GB8721090D0 (en) * 1987-09-08 1987-10-14 Pressure Units Ltd Central heating system
NL9400106A (nl) * 1994-01-24 1995-09-01 Cnossen Jan H Apparaat t.b.v. C.V.-installatie met expansievat, drukregeling, waterverliessuppletie, ontluchting, registratie en controle.
NL9500380A (nl) * 1995-02-27 1996-10-01 Flamco Bv Expansie-installatie.
EP0945686A3 (de) * 1998-03-24 2001-09-12 Stücklin & Cie AG Druckhaltevorrichtung mit innerhalb einer Flüssigkeitsaufnahmekammer angeordneter Pumpe
NL1010047C2 (nl) * 1998-04-03 1999-10-05 Jan Henk Cnossen Microserver.
DE102006021916A1 (de) * 2006-05-11 2007-11-22 Reflex Winkelmann Gmbh & Co. Kg Vorrichtung zur Entgasung und/oder Druckhaltung in einem geschlossenen Wasserkreislauf

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2505459A1 (fr) * 1981-05-05 1982-11-12 Amblard Francois Ensemble de raccordement entre un generateur de chaleur principal et un generateur d'appoint ou de remplacement, parcourus par un meme fluide caloporteur
DE4407936A1 (de) * 1993-03-12 1994-09-15 Stuecklin & Cie Ag Druckhaltevorrichtung für geschlossene Heizungs- oder Kühlkreisläufe
EP1102012A2 (de) * 1999-11-17 2001-05-23 Anton Eder Entgasungseinrichtung

Also Published As

Publication number Publication date
WO2009131450A2 (en) 2009-10-29
NL1036252C2 (nl) 2010-05-31
EP2281151A2 (de) 2011-02-09
WO2009131450A3 (en) 2010-11-04

Similar Documents

Publication Publication Date Title
EP2281151B1 (de) Heizsystem mit expansionsvorrichtung
US5007583A (en) Device for accomodating expansion in fluid circulation systems
KR101971993B1 (ko) 축열재를 이용한 전기온풍기
JP3234523B2 (ja) 恒温冷媒液循環装置
EP3036025B1 (de) Entgasungsverfahren und -vorrichtung
CN111957991B (zh) 对工具机主轴提供升降温效果的辅助装置
CN110617467A (zh) 真空式蒸汽和热水复合锅炉
GB2054130A (en) Improvements in and relating to solar powered heating systems
KR101250466B1 (ko) 변유량 태양열 집열 제어장치 및 이를 이용한 제어방법
WO2009095907A2 (en) Water heating system
CN212619283U (zh) 即热组件、即冷即热结构及燃气热水器
AU2009201076B2 (en) Split non-pressurised solar water heating systems
US5496447A (en) Water distilling apparatus
JP4988539B2 (ja) 貯湯式給湯機
WO2011114235A2 (en) Hot water system with solar field
JP3831738B2 (ja) ヒートポンプ式給湯装置
EP0740759A1 (de) Heizgerät
WO1995020132A9 (en) Heating device
JP6106049B2 (ja) 流量自動調節システム
EP0686816B1 (de) Vorrichtung für einen Warmwasserbereiter
CN209042798U (zh) 冷水机
CN219147348U (zh) 水处理设备
JP2022190945A (ja) 貯湯式給湯装置
US20070012314A1 (en) Solar water heating system
JP2006194583A (ja) ヒートポンプ式給湯装置

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20101025

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL BA RS

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: FLAMCO B.V.

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: EXAMINATION IS IN PROGRESS

17Q First examination report despatched

Effective date: 20170306

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: GRANT OF PATENT IS INTENDED

INTG Intention to grant announced

Effective date: 20171221

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE PATENT HAS BEEN GRANTED

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL BA RS

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

Ref country code: AT

Ref legal event code: REF

Ref document number: 1006518

Country of ref document: AT

Kind code of ref document: T

Effective date: 20180615

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 602009052667

Country of ref document: DE

REG Reference to a national code

Ref country code: NL

Ref legal event code: FP

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG4D

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180606

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180906

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180606

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180606

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180606

Ref country code: NO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180906

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180606

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180907

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180606

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180606

REG Reference to a national code

Ref country code: AT

Ref legal event code: MK05

Ref document number: 1006518

Country of ref document: AT

Kind code of ref document: T

Effective date: 20180606

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180606

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180606

Ref country code: AT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180606

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180606

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180606

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20181006

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180606

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 602009052667

Country of ref document: DE

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20190307

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180606

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180606

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20190422

Ref country code: MC

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180606

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20190430

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20190430

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180606

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20190422

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20181008

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180606

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT; INVALID AB INITIO

Effective date: 20090422

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180606

P01 Opt-out of the competence of the unified patent court (upc) registered

Effective date: 20230526

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20230419

Year of fee payment: 15

Ref country code: FR

Payment date: 20230425

Year of fee payment: 15

Ref country code: DE

Payment date: 20230427

Year of fee payment: 15

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 20230427

Year of fee payment: 15

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20230427

Year of fee payment: 15

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 20240426

Year of fee payment: 16