EP1418387A1 - Installation de chauffage compacte avec deux circuits de chauffage - Google Patents

Installation de chauffage compacte avec deux circuits de chauffage Download PDF

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Publication number
EP1418387A1
EP1418387A1 EP20020024872 EP02024872A EP1418387A1 EP 1418387 A1 EP1418387 A1 EP 1418387A1 EP 20020024872 EP20020024872 EP 20020024872 EP 02024872 A EP02024872 A EP 02024872A EP 1418387 A1 EP1418387 A1 EP 1418387A1
Authority
EP
European Patent Office
Prior art keywords
heating system
heat exchanger
connection
valve housing
valve
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.)
Granted
Application number
EP20020024872
Other languages
German (de)
English (en)
Other versions
EP1418387B1 (fr
Inventor
Finn Mathiesen Hoj
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.)
Grundfos AS
Original Assignee
Grundfos AS
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 Grundfos AS filed Critical Grundfos AS
Priority to EP02024872.0A priority Critical patent/EP1418387B1/fr
Priority to CN 200310101324 priority patent/CN100526748C/zh
Publication of EP1418387A1 publication Critical patent/EP1418387A1/fr
Application granted granted Critical
Publication of EP1418387B1 publication Critical patent/EP1418387B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D3/00—Hot-water central heating systems
    • F24D3/08—Hot-water central heating systems in combination with systems for domestic hot-water supply
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H9/00—Details
    • F24H9/14—Arrangements for connecting different sections, e.g. in water heaters 
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H9/00—Details
    • F24H9/14—Arrangements for connecting different sections, e.g. in water heaters 
    • F24H9/142—Connecting hydraulic components

Definitions

  • the invention relates to a compact heating system according to the preamble of claim 1 specified features.
  • Compact heating systems of this type are used to heat Process water, i.e. for hot water preparation on the one hand and for heating of heating water on the other hand.
  • water guided in a heating circuit in which it is in a primary heat exchanger is heated and by means of a pump through the heating circuit for the Space heating is circulated.
  • the heating circuit for the room heating can be switched on switched off and instead a heating circuit for water heating switched on, which has a secondary heat exchanger, in which the domestic water is heated.
  • pump and switching valve known, for example in EP 0 825 387 B1 exemplarily and schematically represented are.
  • the present invention relates to a type in which the pump and switching valve arranged on the warm side of the primary heat exchanger are, i.e. seen in the flow direction between the primary heat exchanger and secondary heat exchanger or between primary heat exchanger and space heating.
  • Such an arrangement is in EP 0 825 387 B1 explained by way of example with reference to FIG. 7.
  • the invention is based on the object Generic compact heating system to create, which is fluid and is technically cheap and which one compact structure.
  • the basic idea of the present invention is to reduce the pressure port of the Connect the pump directly to the valve housing next to it on the one hand, to create a fluid transition between the pump and the valve housing as well as a compact one Create unit. Because there is no piping between these components takes place, there is a compact and stable structural unit, in particular, if the pump housing and valve housing are made in one piece.
  • the use of a directional valve is in the immediate vicinity of the pump an advantage, as it is stable over a long period and largely independent of flow Switching operations can be guaranteed.
  • the directional control valve is particularly insensitive to contamination or deposits.
  • the valve housing is preferably designed such that it is a rear one Has connection pair that directly to the secondary heat exchanger, which is usually designed in the form of a plate heat exchanger is, can be connected.
  • the plate heat exchanger Usually consists of metal and the assembly as an injection molded part is made of plastic, the direct connection of the unit results to the plate heat exchanger in addition to the advantage of the omitted Piping also has the advantage of high stability as well as a compact design.
  • connection unit either as a separate component or preferably also be formed in one piece with the structural unit, so that all four connections of the plate heat exchanger directly with the Unit are connected, In addition to the compact structure results this in particular a stability advantage, since the plate heat exchanger then forms a stabilizing basis for the structural unit.
  • a connecting piece is preferably designed such that it follows one Lockable additional connections at the back or bottom, which are offset by 90 ° having.
  • this nozzle has the manufacturing technology Advantage that a core is drawn over this additional nozzle can and also offers another connection option it for a sensor, valve, filter or the like.
  • the additional nozzle is preferably 180 ° offset to the connecting piece so that the filter is inserted from the front can be done if the connecting piece is directed to the rear. On in this way it is easy to replace the filter in the installed position possible because there is access from the front.
  • the structural unit with its series of connections is preferred directly connected to the in-house network, since then none Further piping is required,
  • To use the usual screw connection to enable and prevent the unit when connecting the pipes are damaged is provided according to the invention, to form the connecting piece from metal and during injection molding molded into the plastic unit.
  • This Connection pieces made of metal then have, for example a usual male thread so that it can be used on site with the stationary one Pipe system can be screwed.
  • the structural unit preferably has inserts for temperature, pressure and / or Flow sensors, which are arranged so that they also in Installation position are accessible so that they are quick in the event of a defect and can be easily exchanged. Such use is preferred in the heating water return, in the hot water supply and provided on the suction side of the pump housing.
  • the valve housing has a substantially cylindrical shape Form and is closed on one end by a closure.
  • This closure preferably has a bayonet, so that The valve itself is easily and quickly accessible even in later operation is.
  • the sealing seats can be used individually or both through the valve housing be formed by yourself or by an insertable into the valve housing Valve unit, which preferably both sealing seats and the actuator with the sealing bodies.
  • Valve unit which preferably both sealing seats and the actuator with the sealing bodies.
  • Actuating device provided, which is connected to the side of the valve housing is and has an actuating arm which in the valve housing engages and encloses the actuator in a form-fitting manner around the position to control the sealing body in relation to the sealing seats. It is preferred the actuating arm is surrounded by an elastic sealing jacket, which the actuating device opposite that in the valve housing Liquid seals. Alternatively, the actuator would otherwise have to be opposite opposite the housing having the drive and the housing the valve housing.
  • suction port of the Pump to the primary heat exchanger which is usually located far above is to be connected, it is advisable to use this suction port upwards out of the pump housing and there with a to connect pipe leading to the primary heat exchanger.
  • alternative can according to the invention of the suction nozzle also from the side Pump housing must be led out, but in any case transversely to the impeller axis, thus its accessibility even when installed is guaranteed.
  • the structural unit according to the invention can, even with one-piece design, as further below in detail using an exemplary embodiment will be set out, low manufacturing technology, namely almost exclusively with drawing cores, preferably however, in the area of the connection between the pump housing on the discharge nozzle side and valve housing provided a fusible core since then this area from the point of view of flow technology only can be optimized, which leads to increases in efficiency and especially noise emissions in this area are reduced.
  • the structural unit has Guide means that allow them to be installed from the front in their installed position to insert, so the assembly can first in a first fixing position are largely spent in the connection connections are produced, then the structural unit via these guide means is moved into its final installation position. hereby the assembly of the compact heating system, especially the connection the on-site lines considerably simplified as well as the Exchange in case of repair,
  • the compact heating system according to the invention is a gas term in which water is used in a primary heat exchanger a gas burner is heated by the primary heat exchanger in a pump 1 comes from there to a valve 2, where it is depending on the valve position either that for space heating, usually from radiators existing heating circuit or a secondary heat exchanger 3 of a heating circuit is supplied, which tap or service water heated by means of the secondary heat exchanger 3. Both heating circuits are on the outflow side into the feed line to the primary heat exchanger recycled.
  • a structure is known per se, it is in this Reference is made, for example, to EP 0 825 387 B1, FIG. 7, where this structure is shown.
  • the present invention is not the one described above Structure as such, but rather the specific design of the consisting of a centrifugal pump 1 and valve 2, as follows is described.
  • Pump 1 is an electromotive driven one Centrifugal pump, the (not shown) impeller in one Pump housing 4 runs, the pressure port 5 in an immediate an essentially cylindrical valve housing 6 arranged next to it empties.
  • the pressure port 5 opens approximately at half the length of the cylindrical valve housing 6, in which a 2/3 way valve is integrated is.
  • the valve housing 6 has a connection piece near its underside 7, in the installed position to the side, especially to the left is directed to and for connecting the heating circuit for space heating is provided as well as an upper connector 8 for connecting the second heating circuit, in particular the secondary heat exchanger 3 serves on the flow side.
  • the valve housing 6 is in this version pot-shaped, d.
  • h "it has a closed bottom and is sealed at its top by a closure 9.
  • the closure 9 is by means of a bayonet connection from above into the Valve housing 6 incorporated so that, for example, in the case of a necessary repair of the valve can be removed with a handle can, after which the valve housing 6 is accessible from above, without to have to remove the connecting cables.
  • the valve housing can ever after formation of the valve also on the bottom with such a closure 9, as is exemplarily shown in FIG. 3. Then the valve is accessible from both sides.
  • the core of the structural unit shown in FIG. 1 is that shown individually in FIG. 2 Injection molded component 10, which the pump housing 4 and the Includes valve housing 6 including the connecting pressure port 5. As illustrated in FIG. 2, this plastic injection molded part 10 on the pump housing side, a suction port 11, which goes down vertically in this version, beyond an air separator 12, which is on the top for receiving a vent valve 13 is formed, a sensor receptacle 14 and on the pressure side a drain socket 15. As can be seen from FIG. 1, the sensor receptacle is 14 provided for receiving a sensor unit 16, for example a pressure sensor and / or a temperature sensor can have suction-side detection.
  • the drain port 15 is common provided with a sealing cap, which is also bayonet-like is put on.
  • the pump can be installed in this position via this connector 15 be drained, for example for repair purposes, when the unit consisting of motor and gyro is replaced shall be.
  • the valve housing 6 has in addition to those already described Connection piece 7 and 8 and the upper one by means of the closure 9 lockable opening and a side connection 17 for incorporating an actuator 18 for the valve 2, the example is shown with reference to Figures 3 and 4.
  • the injection molded part 10 can extend to the area of the pressure port 12 are only manufactured with drawing cores, only in the area of the pressure nozzle is a melting core on the tool side required, however, which is advantageous from a fluidic point of view, since this Pressure and connection piece 5 exclusively according to fluidic Aspects can be optimized.
  • the basic structure of the valve 2 can be seen in FIGS. 3 and 4.
  • the valve 2 has the pressure port 5 in the flow direction on the input side and the sockets 7, 8 on the output side.
  • Each output side Connection 7 and 8 is a sealing seat 19 and a sealing body 20 assigned, in such a way that both sealing bodies 20 oppose each other Close flow direction.
  • the sealing body 20 sit on a common one rod-like actuator 21 so that they are always together be moved.
  • the Pressure port 5 with one connection port 7 or the other Connection piece 8 wired. 3 is an intermediate position shown, which arises during switching.
  • the actuator 21 is controlled by means of a lever arm 22, which Actuator 21 in the middle between the sealing bodies 20 from the side encompasses form-fitting.
  • the actuator points up and down 21 two discs 23 firmly connected to this, on which the lever arm 22 during its movement triggering the switching process supported.
  • the lever arm 22 is covered with a rubber sleeve, which extends over the head 24 of the actuator and thus both the actuator and the lever arm opposite the valve interior seals.
  • the head 24 sits within the connection 17 of the Component 10.
  • the lever arm 22 is pivotally movable stored, the other end has a spindle nut, which on a spindle, which is driven by an electric motor in the form of a Stepper motor 25 is driven.
  • sealing seats 19 are the sealing seats 19 arranged on the valve housing side.
  • the sealing body 20 are form-fitting snapped onto the actuator 20 so that the sealing body after removing the closures 9 can also be replaced the sealing seats 19 can be cleaned or reworked if necessary become.
  • this embodiment variant is in place of the bottom in the valve housing 6 there is provided a closure 9 as well as on the top.
  • valve 4 shows a variant in which the Entire valve in the form of a cartridge that can be inserted into the valve housing 26 is formed.
  • the valve seats 19 are no longer provided on the housing side, but part form the cartridge, the cartridge 26 itself is by means of two O-rings 27 sealing in the valve housing, which is then also cylindrical on the inside inserted.
  • the O-rings 27 each sit in the area between the pressure ports 5 and connector 8 or pressure connector 5 and connector 7, actuator 21, actuator 18 and the arrangement of sealing bodies 20 and sealing seats 19 is otherwise the same as in the The embodiment described above according to FIG. 3.
  • Fig. 5 shows an embodiment in which the pump 1 and valve 2 formed unit includes everything that is based on the variant has been described according to Figures 1 and 2, as above
  • pump housing 4 valve housing 6 and the connection pair 28 including one encompassing the valve housing 6 laterally Channel 29, which has a connection accessible from the rear is provided in one piece as a plastic injection molded part 30.
  • the suction port is not there led downwards, but upwards, i.e. in the immediate vicinity Direction to the primary heat exchanger with which it is to be connected.
  • connection pair 28 for the direct connection of the plate heat exchanger 3 is provided, has a connection piece 8 at the top Corresponding connection for supplying the primary heat exchanger coming warm water to the plate heat exchanger 3, whereas the lower connection of the pair of connections 28 for supplying the cold service water is still used.
  • the channel 29 opens into a rearward connection piece 31, to which the cold water supply to the system is to be connected. Of accessible at the front, not visible in FIG. 5, there is another one in this channel 29 Integrated sensor holder.
  • a connecting piece 32a which in Installation position is directed downwards, is offset by 90 ° another connection piece 32 is assigned at the rear.
  • the connection 32 is used for connection to the room heating, whereas the connection 32a for connecting an overflow device 43 if necessary and / or a filling device 51 is used.
  • connection pair for the secondary heat exchanger 3 by one separate injection molded component can be formed. This is particularly advantageous if heat exchangers of different lengths in the same Gas boiler construction to be used.
  • the one shown in FIGS. 6 to 10 is more comprehensive Arrangement, which comprises a structural unit, the two pairs of connections includes.
  • the plastic injection molded part 33 of this unit comprises both the connection pair 28 and the corresponding connection pair 34, so that this component on two sides of the pump housing 4 arranged areas with the secondary heat exchanger 3 is firmly connected.
  • the secondary heat exchanger 3 is thus based the plastic injection molded part 33 towards the rear and stabilizes it.
  • the connections of the connection pair 28 are already based on FIG. 5 described, they are functionally correct in this version match.
  • the connections of the connection pair 34 supplement these, the upper connection being the one from the secondary heat exchanger 3 escaping heating water and the lower connection that from the secondary heat exchanger 3 escaping heated service water, that is prepared hot water, leads.
  • connection pair 34 is at an angle to channel 38 running at the front and to the side with an essentially in the installed position vertical channel section 39 connected to a leads backward connector 40.
  • the canal section 39 points at both its upper and lower ends a connection, the lower connection 41 offset by 90 ° to rear connection 40 and offset by 90 ° to a front connection 42 is. These openings serve on the one hand after the injection molding process to pull the cores and form another, such as the forward valve seat 44 in the channel section 39, recordings for sensors.
  • the upper end of the channel section 39 is formed as a connecting piece 45 and serves to connect the return Line to the primary heat exchanger.
  • connection pair 34 The lower connection of the connection pair 34 is via a channel 46, which is directed forward essentially parallel to the impeller axis and in a substantially vertical channel section 47 flows, connected.
  • This channel section 47 is at its lower End formed in the same way, with the rear connection piece 48 provided for connecting the building's hot water pipe is.
  • the connecting pieces 36 and 32 and 40 and 48 are made of metal and firmly and firmly integrated into the injection molding component 33 during injection molding. They have an external thread, so that they can be connected by means of a Union nut directly connected to the building connection lines can be.
  • the aforementioned connections are all in one transverse to the impeller axis 49 row and are all after directed at the back. In this way, the whole in FIGS 8 block shown after loosening these four connections from the device be pulled out to the front.
  • guide rails 50 provided that facilitate this. This in one piece with component 33 trained guide rails act with corresponding guide grooves together, in the permanently installed part of the gas boiler are provided. As can be seen from FIGS.
  • an overflow device in a simple manner 43 and / or a water filling device 51 can be incorporated.
  • the water filling device comprises a line connection between the cold water connection on the building side and the heating circuit, which can be controlled via a switching device.
  • the overflow device 43 is between the flow and the return of the heating circuit for the Space heating is provided and serves to ensure that too with closed heating circuit for space heating the flow circuit as such remains fluid. Because both the overflow device 43 and the water filling device 51 are only provided as required are, the component 33 is designed so that this optionally with or can be delivered without.
  • the injection molded part 33 is, as shown in FIGS. 9 and 10, tool technology comparatively cheap to produce, since only two Melting cores are required, namely as with the others Embodiments of a melting core for the pressure nozzle 5 and the spiral-shaped pressure-side pump housing part and another Melting core for the channel 29 guided around the filter housing 6. If one takes into account the complexity of the component 33, this is production-related comparatively simple, namely essentially by means of To produce drawing cores, only two melting cores are required.
  • the structure is also extremely compact, and is by the statically supported secondary heat exchanger connected on the rear.
  • the forward facing lower connectors (for example 42) can be used to integrate filters.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Water Supply & Treatment (AREA)
  • Steam Or Hot-Water Central Heating Systems (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
EP02024872.0A 2002-11-08 2002-11-08 Installation de chauffage compacte avec deux circuits de chauffage Expired - Lifetime EP1418387B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP02024872.0A EP1418387B1 (fr) 2002-11-08 2002-11-08 Installation de chauffage compacte avec deux circuits de chauffage
CN 200310101324 CN100526748C (zh) 2002-11-08 2003-10-15 紧凑型加热设备

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP02024872.0A EP1418387B1 (fr) 2002-11-08 2002-11-08 Installation de chauffage compacte avec deux circuits de chauffage

Publications (2)

Publication Number Publication Date
EP1418387A1 true EP1418387A1 (fr) 2004-05-12
EP1418387B1 EP1418387B1 (fr) 2016-01-13

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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1650506A1 (fr) * 2004-10-19 2006-04-26 GV STAMPERIE S.p.A. Ensemble de chaudière pour chaudière de chauffage à gaz à double fonction et chaudière avec cet ensemble
EP1845314A1 (fr) * 2006-04-14 2007-10-17 Fugas Spa Ensemble hydraulique de retour pour chaudière murale
EP1909041A1 (fr) * 2003-11-03 2008-04-09 Grundfos a/s Composant pour installation de chauffage compacte
ITBO20080456A1 (it) * 2008-07-21 2010-01-22 O T M A S N C Di Spaggiari & C Gruppo idraulico valvolare per caldaie murali
CN102226588A (zh) * 2011-04-22 2011-10-26 格伦德福斯管理联合股份公司 太阳能工作站
CN102226589A (zh) * 2011-04-22 2011-10-26 格伦德福斯管理联合股份公司 太阳能工作站
US20110308767A1 (en) * 2010-06-19 2011-12-22 Grundfos Management A/S Housing unit for a heating system
EP3012552A1 (fr) * 2014-10-21 2016-04-27 Grundfos Holding A/S Composant pour installation de chauffage compacte
EP2613097B2 (fr) † 2012-01-09 2020-11-18 Grundfos Holding A/S Appareil de chauffage

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2413045B1 (fr) * 2010-07-30 2014-02-26 Grundfos Management A/S Unité d'échange thermique
PL2629019T3 (pl) * 2012-02-17 2016-12-30 Jednostka obudowy dla przyrządu grzejnego
PL2708825T3 (pl) * 2012-09-12 2017-08-31 Grundfos Holding A/S Sposób sterowania pompą obiegową w instalacji z co najmniej dwoma obwodami cyrkulacyjnymi

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0460399A2 (fr) 1990-05-04 1991-12-11 Grundfos International A/S Pompe centrifuge et chaudière à gaz avec une telle pompe
EP0735332A2 (fr) * 1995-03-31 1996-10-02 Daewoo Electronics Co., Ltd Chaudière à gaz
EP0797057A2 (fr) * 1996-03-22 1997-09-24 FUGAS s.r.l. Ensemble de soupape avec pompe intégrée pour chaudière mixte
EP0825387A2 (fr) * 1996-08-13 1998-02-25 WILO GmbH Unité hydraulique pour une installation combinée d'eau de chauffage et d'eau chaude sanitaire
EP1031795A2 (fr) * 1999-02-24 2000-08-30 Fontecal S.p.A. Ensemble modulaire hydraulique
EP1072848A2 (fr) * 1999-06-25 2001-01-31 Joh. Vaillant GmbH u. Co. Dispositif de fixation d'un boítier
DE10007873C1 (de) * 2000-02-21 2001-06-28 Grundfos As Baueinheit für eine Kompaktheizungsanlage

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0460399A2 (fr) 1990-05-04 1991-12-11 Grundfos International A/S Pompe centrifuge et chaudière à gaz avec une telle pompe
EP0735332A2 (fr) * 1995-03-31 1996-10-02 Daewoo Electronics Co., Ltd Chaudière à gaz
EP0797057A2 (fr) * 1996-03-22 1997-09-24 FUGAS s.r.l. Ensemble de soupape avec pompe intégrée pour chaudière mixte
EP0825387A2 (fr) * 1996-08-13 1998-02-25 WILO GmbH Unité hydraulique pour une installation combinée d'eau de chauffage et d'eau chaude sanitaire
EP0825387B1 (fr) 1996-08-13 2002-06-05 WILO GmbH Unité hydraulique à être installée dans une installation combinée d'eau de chauffage et d'eau chaude sanitaire
EP1031795A2 (fr) * 1999-02-24 2000-08-30 Fontecal S.p.A. Ensemble modulaire hydraulique
EP1072848A2 (fr) * 1999-06-25 2001-01-31 Joh. Vaillant GmbH u. Co. Dispositif de fixation d'un boítier
DE10007873C1 (de) * 2000-02-21 2001-06-28 Grundfos As Baueinheit für eine Kompaktheizungsanlage

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1909041A1 (fr) * 2003-11-03 2008-04-09 Grundfos a/s Composant pour installation de chauffage compacte
EP1650506A1 (fr) * 2004-10-19 2006-04-26 GV STAMPERIE S.p.A. Ensemble de chaudière pour chaudière de chauffage à gaz à double fonction et chaudière avec cet ensemble
EP1845314A1 (fr) * 2006-04-14 2007-10-17 Fugas Spa Ensemble hydraulique de retour pour chaudière murale
ITBO20080456A1 (it) * 2008-07-21 2010-01-22 O T M A S N C Di Spaggiari & C Gruppo idraulico valvolare per caldaie murali
EP2148149A3 (fr) * 2008-07-21 2016-08-17 O.T.M.A. S.N.C. di Spaggiari & C. Ensemble de vanne hydraulique pour chaudières à montage mural
US20110308767A1 (en) * 2010-06-19 2011-12-22 Grundfos Management A/S Housing unit for a heating system
US9612036B2 (en) * 2010-06-19 2017-04-04 Grundfos Management A/S Housing unit for a heating system
CN102226589A (zh) * 2011-04-22 2011-10-26 格伦德福斯管理联合股份公司 太阳能工作站
CN102226589B (zh) * 2011-04-22 2013-04-17 格伦德福斯管理联合股份公司 太阳能工作站
CN102226588B (zh) * 2011-04-22 2014-08-13 格伦德福斯管理联合股份公司 太阳能工作站
CN102226588A (zh) * 2011-04-22 2011-10-26 格伦德福斯管理联合股份公司 太阳能工作站
EP2613097B2 (fr) † 2012-01-09 2020-11-18 Grundfos Holding A/S Appareil de chauffage
EP3012552A1 (fr) * 2014-10-21 2016-04-27 Grundfos Holding A/S Composant pour installation de chauffage compacte

Also Published As

Publication number Publication date
CN100526748C (zh) 2009-08-12
EP1418387B1 (fr) 2016-01-13
CN1499138A (zh) 2004-05-26

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