WO2018166970A1 - Station domestique - Google Patents

Station domestique Download PDF

Info

Publication number
WO2018166970A1
WO2018166970A1 PCT/EP2018/056081 EP2018056081W WO2018166970A1 WO 2018166970 A1 WO2018166970 A1 WO 2018166970A1 EP 2018056081 W EP2018056081 W EP 2018056081W WO 2018166970 A1 WO2018166970 A1 WO 2018166970A1
Authority
WO
WIPO (PCT)
Prior art keywords
valve
hydraulic assembly
switching
assembly according
housing
Prior art date
Application number
PCT/EP2018/056081
Other languages
German (de)
English (en)
Inventor
Thomas Blad
Original Assignee
Grundfos Holding A/S
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 Holding A/S filed Critical Grundfos Holding A/S
Publication of WO2018166970A1 publication Critical patent/WO2018166970A1/fr

Links

Classifications

    • 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
    • F24H9/144—Valve seats, piping and heat exchanger connections integrated into a one-piece hydraulic unit
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D15/00—Control, e.g. regulation, of pumps, pumping installations or systems
    • F04D15/0005—Control, e.g. regulation, of pumps, pumping installations or systems by using valves
    • F04D15/0016—Control, e.g. regulation, of pumps, pumping installations or systems by using valves mixing-reversing- or deviation valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • 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
    • 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
    • F24D3/105—Feed-line arrangements, e.g. providing for heat-accumulator tanks, expansion tanks ; Hydraulic components of a central heating system pumps combined with multiple way valves

Definitions

  • the invention relates to a hydraulic assembly with a circulating pump unit and a service water heat exchanger.
  • Such hydraulic assemblies are used, for example, in compact heating systems, such as gas-fired heating stations, or as home stations in central heating installations.
  • the task of these hydraulic assemblies is usually to direct a liquid heat carrier such as water selectively through at least one heating circuit or a domestic water heat exchanger for heating domestic water.
  • the hydraulic assembly according to the invention has at least one input connection via which it is connected to a line to a heat source, in particular a central heat source, such as a boiler, a solar system or the like.
  • the hydraulic assembly has at least one circulating pump unit, which is connected downstream to a heating circuit flow connection.
  • the circulation pump unit can convey a liquid heat carrier such as water into the heating circuit flow connection.
  • the hydraulic assembly on a domestic water heat exchanger, which is intended to heat domestic water.
  • a mixing valve is arranged upstream of the circulating pump unit. This is with its output with the circulation pump aggregate, d. H. connected to the suction side of the circulating pump unit, so that the circulating pump unit sucks liquid from the outlet of the mixing valve.
  • the mixing valve also has two inputs, wherein a first input is connected to the input port of the hydraulic assembly, so that through this input, a heated heat carrier can be supplied from an external heat source.
  • the second input of the mixing valve is connected to a heating circuit return connection. Cooled heat transfer fluid is thus available at this connection.
  • the mixing valve is designed such that it can mix the flows from the first and the second inlet and can change the mixing ratio of the flows by displacing at least one valve element in the mixing valve. It is thus possible to mix cooled heat transfer medium from the heating circuit return connection to the hot heat transfer medium from the inlet connection in order to achieve a mixture of heat transfer media with a lower temperature.
  • a temperature-controlled heat transfer medium emerges and enters the circulation pump unit.
  • a changeover valve is arranged according to the invention, which is connected at its input to the circulating pump unit, ie to the outlet or pressure connection of the circulating pump unit.
  • the circulating pump unit conveys liquid or heat transfer medium into the inlet of the reversing valve.
  • the switching valve also has two outputs, of which a first output is connected to the at least one heating circuit flow connection. So you can use the toggle valve are conveyed by the circulation pump unit of the heat carrier to the heating circuit flow connection.
  • the second output of the changeover valve is connected to the service water heat exchanger.
  • the circulating pump unit can promote the liquid heat transfer medium through the changeover valve in the hot water heat exchanger.
  • the switching valve has in its interior at least one valve element which can be displaced to switch a flow path through the switching valve, so that the flow path is selectively from the input to the first output or from the input to the second output.
  • the flow between the at least one heating circuit flow connection and the hot water heat exchanger can be switched.
  • the heating circuit supply is switched off and the heat transfer medium is conducted exclusively through the service water heat exchanger.
  • the connection to the service water heat exchanger is interrupted and the heat transfer medium is conveyed through the heating circuit flow connection in order to heat a heating circuit connected to it.
  • the inventive arrangement of the switching valve and the mixing valve has the advantage that only a single pump for operating the heating circuit and to supply the domestic water heat exchanger is required. Furthermore, the pump can be arranged in the immediate vicinity of the heat exchanger, so that the supply of the hot water heat exchanger with heat transfer is ensured in a reliable manner.
  • To use the circulating pump unit in the second position of the switching valve to promote the heat carrier by at least one connected to the Schunikvorlauf connection heating circuit has the advantage that the supply of the heating circuit with heat transfer through the circulation pump unit is ensured and not by the delivery of an external , possibly far away circulating pump of a central heat source depends. This is particularly advantageous when using the hydraulic subassembly in a home station, since in this way the circulating pump unit which supplies the domestic water heat exchanger and the at least one heating circuit is arranged directly in the dwelling to be supplied.
  • the mixing valve preferably has a valve housing, which is connected to a pump housing of the circulating pump unit.
  • the circulating pump unit can be a standard circulating pump unit, to whose inlet or inlet flange the mixing valve is attached.
  • the mixing valve with its valve housing is preferably connected directly to the circulating pump unit.
  • a connecting piece between the valve housing and the pump housing may be arranged.
  • the switching valve preferably has a valve housing, which is connected to a pump housing of the circulating pump unit.
  • the valve housing is particularly preferably connected directly to the pump housing.
  • additional connector between the pump housing and the valve housing can be arranged.
  • the circulating pump unit is preferably a standard circulating pump unit, at whose outlet connection or outlet flange the valve housing is attached. This makes it very easy to build the hydraulic assembly from standard components.
  • the mixing valve and / or the switching valve may be integrated in a pump housing of the circulating pump unit or have a valve housing which is integrally formed with at least a portion with at least a portion of the pump housing. This is indicates that the valve housing and the pump housing preferably have at least one common housing part or a common housing section. If the mixing valve and / or the changeover valve are integrated directly into the pump housing, this allows a very compact construction. Furthermore, the assembly can be simplified because the number of required external connections or piping is reduced.
  • the hydraulic subassembly can thus be designed as an integrated hydraulic subassembly, in which preferably also the service water heat exchanger is connected directly to the valve housing and / or the pump housing, so that a separate piping to the service water heat exchanger can be dispensed with.
  • the changeover valve has two valve seats which are opposite one another and between which a valve element can be moved in such a way that it optionally bears against the one or the other valve seat.
  • the valve element preferably has two sealing faces facing away from one another, ie preferably directed essentially oppositely 180 °, of which a first sealing face on a first valve seat and a second sealing face alternatively on the second valve seat can come into contact.
  • the valve element is preferably moved to change the switching positions between the two valve seats back and forth, so that it bears either on one or the other valve seat.
  • the input of the changeover valve preferably opens into a space located between the two valve seats so that the fluid flow from the entrance through this space between the two valve seats flows into an opening in one of the valve seats, depending on which of the valve seats is open and which is closed.
  • Such a switching valve has a comparatively simple structure and is known in its basic structure already from various hydraulic units for heating systems.
  • the mixing valve has two valve seats arranged opposite one another, between which a valve element can be moved in such a way that it either abuts the one or the other valve seat or is spaced from both valve seats by a variable amount.
  • the valve element is preferably designed such that it has two sealing surfaces facing away from one another, ie substantially opposite by 180 °, of which the first sealing surface faces a first valve seat and the second sealing surface faces a second valve seat.
  • the valve member is preferably movable to selectively move closer to one valve seat or closer to the other valve seat and / or to engage one of the valve seats, preferably with a first sealing surface on the first valve seat and optionally a second sealing surface would abut the second valve seat.
  • the mixing valve is designed such that its first inlet opens into an opening of a first valve seat and its second inlet opens into an opening of a second valve seat and the outlet is connected to a space between the two valve seats. Due to the different positioning of the valve element between the valve seats, the flow paths through the two valve seats can be opened differently wide, so that the ratio of the two flow cross sections of the two valve seats can be varied to the output and so the mixing ratio of the flows through the two valve seats can be changed.
  • the valve element can also be brought into tight contact with at least one of the valve seats in order to completely close the respective flow path.
  • this is at least the second input, so that it is possible, preferably in at least one switching position to promote exclusively heat transfer medium from the input port to the output, ie to reach the maximum possible heat carrier temperature at the outlet.
  • This is particularly useful when the switching valve is in the switching position, that the heat transfer medium is conveyed to the hot water heat exchanger.
  • the mixing valve preferably has a total of a construction, which essentially corresponds to the structure of the switching valve.
  • the mixing valve and / or the changeover valve are designed so that the valve element is arranged in each case at the end of a lever which extends outwardly through an opening in a valve housing and around a pivot axis located in the region of the opening a drive located outside of the valve housing is pivotable.
  • the lever preferably extends transversely, in particular normal to the pivot axis.
  • the lever In a middle position of the valve element between the two valve seats, the lever preferably extends substantially normal to the axis along which the two valve seats face each other.
  • the pivot axis preferably extends transversely and in particular also normal to this axis, along which the two valve seats face each other. However, the pivot axis is spaced in the direction of the lever from the axis along which the valve seats face each other.
  • the drive for moving the lever on the outside of the valve housing is preferably a linearly movable drive, which moves along an axis transverse to the lever and this can move back and forth or pivot.
  • the drive is self-locking, so that it holds the assumed switching position of the lever and thus the valve element without power or energy supply.
  • the drive is also preferably an electric motor, in particular a stepper motor.
  • the positioning of the valve element of the mixing valve is preferably controlled by a temperature-dependent control device, including the output temperature of the heat carrier can be detected on the output side of the mixing valve by a temperature sensor.
  • the mixing valve and the switching valve on a mechanically same, more preferably a mechanically identical structure. Ie. Here, one and the same valve can be used as a changeover valve and as a mixing valve of the type. The mixing valve is then controlled by a control device only differently than the switching valve.
  • the switching valve and / or the mixing valve may comprise a valve element which is rotatable between its possible switching positions about an axis of rotation.
  • a rotary drive can be provided which rotates the valve element about the axis of rotation.
  • This is preferably also an electric drive motor, for example a stepper motor.
  • a rotatable valve element can also have advantages, since it is easy to move and moreover enables simple drive via the drive motor of the circulating pump unit itself, in particular if the valve element and the drive motor have the same axis of rotation or axes of rotation aligned with one another.
  • the valve element along its axis of rotation in addition between an adjacent position in which it rests against at least one valve seat and a released position in which it is lifted from the valve seat, movable.
  • This makes it possible to easily move the valve element between its switching positions when it is in the released position. So disturbing friction is avoided at the valve seats when adjusting the valve element between the switching positions.
  • the valve element can then be brought into its adjacent position to a tight contact with the at least one valve seat or more valve seats for reliable sealing to reach. Ie. by this configuration, on the one hand a reliable seal can be achieved and on the other hand, an easy mobility of the valve element is made possible when it is in its released position.
  • the mixing valve and the switching valve may have a common rotatable valve element.
  • These switching and switching functions can be achieved by switching openings in the valve element, which cooperate with connection openings in different valve seats. Depending on how the switching openings are made to coincide with the connection openings, flow paths can be switched over and cross sections of the flow paths can be changed to change the mixing ratio.
  • the switching and connection openings are particularly preferably arranged so that the switching positions, which accomplish the switching functionality of the switching valve are located further apart than the angular positions, via which the different mixing ratios are achieved. Thus, it is possible within a switching position in which one of the flow paths of the switching valve is opened by slight displacement of the valve element or slight rotation of the valve element to change the mixing ratio in the mixing valve, without switching the flow paths in the switching valve.
  • the switching valve and / or the mixing valve preferably have a stepping motor as a drive, by means of which an exact positioning of the respective valve element is possible.
  • a stepping motor as a drive, by means of which an exact positioning of the respective valve element is possible.
  • Age- natively for example, another drive with a position sensor and a position control could be used.
  • At least one control device which controls or regulates a drive of the changeover valve and / or a drive of the mixing valve.
  • this control device is at least partially disposed in an electronics housing of Umisselzpumpenaggregates, more preferably the required control functionality for driving the mixing valve and the drive of the changeover valve from the control electronics of Umisselzpumpenaggregates, which controls the drive motor of Umisselzpumpenaggregates or at least partially is taken over.
  • control device which controls both the drive of the changeover valve and also the drive of the mixing valve.
  • separate control devices may be provided, which then more preferably have a communication connection, so that in the control of the changeover valve, the positioning of the mixing valve can be taken into account and in the control of the mixing valve, the positioning of the changeover valve can be considered.
  • the at least one control device is further preferably designed so that, when the changeover valve is switched so that a second outlet is open, the mixing valve is switched so that its second input is as far as possible and preferably completely closed.
  • the mixing valve is switched so that its second input is as far as possible and preferably completely closed.
  • At least one valve housing of the changeover valve or a combined pump and valve housing may be connected directly to an input of the process water heat exchanger.
  • the switching valve and the domestic water heat exchanger and in particular the entire pump and valve assembly, which combines the switching valve, the mixing valve and the Umisselzpumpenaggregat be connected directly to the hot water heat exchanger, so that an integrated unit of the valve means of the pump unit and the domestic water heat exchanger can be created.
  • the hydraulic assembly is particularly preferably used as a home station for a heating system.
  • the subject of the invention is also a home station with a hydraulic assembly according to the foregoing description.
  • a home station is used in buildings that have one or more central heat sources, such as have a solar system and a boiler, which supply several apartments with heated heat carrier.
  • central heat sources such as have a solar system and a boiler, which supply several apartments with heated heat carrier.
  • facilities for temperature control in the individual apartments, which work independently, arranged and in particular means for heating domestic hot water are required.
  • domestic stations which have a domestic water heat exchanger and, moreover, supply one or more heating circuits with the heated heat carrier and more preferably can take over the distribution of the heat carrier in different heating circuits.
  • the use of the hydraulic assembly according to the invention in such a home station has the advantage that with a single circulating pump in the home station both one or more heating circuits and the service water heat exchanger can be reliably supplied with heat transfer, without having to rely on a central circulation pump in the building provides sufficient pressure and flow.
  • a home station in addition to the hydraulic assembly with the described components, for example, even have a heat meter to capture the heat consumption of the respective apartment.
  • a heat meter is preferably in the region of the heating circuit flow connection.
  • the hydraulic assembly described can supply only one or more heating circuits with the same flow temperature, it is possible to provide or arrange an additional second heating circuit flow connection in a home station with such a hydraulic assembly, which branches off before the first input of the mixing valve and is supplied with heat transfer medium, which has the flow temperature at the input port.
  • a separate Um Georgzpumpenaggregat be provided for conveying the heat carrier, but it is also possible that the heat transfer medium by such a heating circuit only by the central generated heat transfer flow is promoted. If a heat meter is provided, this is preferably arranged upstream of the branch to the second heating circuit flow connection.
  • FIG. 1 shows schematically the hydraulic construction of a heating system with a hydraulic assembly according to the invention
  • FIG. 2 shows an exploded view of a hydraulic assembly according to the invention according to a first embodiment of the invention
  • FIG. 3 is a sectional view of the hydraulic assembly of FIG. 2,
  • FIG. 4 is an exploded perspective view of a second possible embodiment of a subassembly of the hydraulic assembly
  • FIG. 6 shows a rear view of the valve element according to FIG. 5, FIG.
  • FIGS. 7a to 7f show plan views of the opened pump or valve housing according to FIG. 4 with the valve element open in 6 different possible switching positions
  • FIG. 8 shows a sectional view of the pump unit or assembly according to FIG. 4.
  • FIG. 1 shows a heating system with a hydraulic assembly 2, which is designed as a home station or part of a home station 4.
  • a subassembly 4 consisting of a circulating pump unit 6, a mixing valve 8 and a switching valve 10 is arranged.
  • a hot water heat exchanger 12 is also arranged.
  • the hydraulic assembly 2 has an input port 14 through which heat transfer medium from a central heat source 16, such as a boiler, via a central pump 18 is supplied.
  • the hydraulic assembly 2 also has a return port 20 and a first heating circuit flow connection 22.
  • two heating circuits are provided, a floor heating circuit 24 and a further heating circuit 26, which may be equipped with normal radiators or radiators, for example.
  • the second heating circuit 26 is connected to a second heating circuit flow connection 28 of the hydraulic assembly 2. Both the return port 20 and the heating circuits 24 and 26 open into a common return 30 to the heat source 1 6. It is understood that the heating circuits 24 and 26 are shown only as examples and that at the first heating circuit flow connection 22 and / or a plurality of corresponding heating circuits could be connected to the second heating circuit flow connection 28 in each case. Also, here only a hydraulic assembly 2 is shown as an example.
  • a plurality of identical hydraulic assemblies 2, each with associated heating circuits 24 and 26, could be additionally connected in a corresponding manner additionally to the heat source 16 and the central pump 18, as shown by way of example. example may be the case in a residential building, which is supplied by the central heat source 16 with heat.
  • the mixing valve 8 has an outlet 32, which is connected to the suction side of the circulating pump unit 6.
  • the mixing valve 8 has a first input 34, which is connected to the input terminal 14.
  • the second input 36 of the mixing valve 8 is connected to the return port 20 and via this to the return 30.
  • the switching valve 10 is connected to the input of a first side of the domestic water heat exchanger 12, so that heat transfer medium can flow through the first side of the domestic water heat exchanger 12 and then to the return port 20.
  • the switching valve 10 also has a stepping motor 48 for moving a valve element 50.
  • the hydraulic assembly 2 further comprises a control device 52, which is connected to the stepper motors 38 and 48 and controls them.
  • the control device 52 could moreover be connected to control electronics 53 of the circulating pump assembly 6, which is arranged in an electronics housing 54, or at least partially also be arranged in the electronics housing 54.
  • the control device 52 controls the changeover valve 10 such that, by displacing its valve element 50, there is either a flow path from the circulating pump unit 6 to the first heating circuit flow connection 22 or alternatively to the process water heat exchanger 12.
  • the mixing valve 8 becomes preferable so controlled that its valve element 40 is located so that the second input 36 is substantially closed, so that the pump unit 6 sucks on the input terminal 14 of the heat source 1 6 heated heat carrier and promotes through the hot water heat exchanger 12.
  • the switching valve 10 is in the other switching position, the flow path to the hot water heat exchanger 12 is closed and the flow path to the first heating circuit flow connection is opened. In this position, the mixing function of the mixing valve 8 comes into play.
  • the mixing valve 8 can be controlled so that its valve element 40 is located so that both inputs 34 and 36 are open, so that the pump unit 6 sucks in this switching position heat transfer both via the input port 14 and via the return port 20 and the two currents mixed.
  • the mixing ratio By varying the mixing ratio, the amount of cold heat carrier can be varied from the return port 20, which is mixed with the warm heat carrier from the input port 14.
  • the temperature of the heat carrier which is provided at the first heating circuit flow connection 22, can be varied.
  • the flow temperature for the underfloor heating circuit 24 with respect to the flow temperature, which is provided by the heat source 1 6, can be reduced.
  • connection to the second heating circuit feed connection 28 branches off between the input connection 14 and the first input 34 of the mixing valve 8, so that the second heating circuit 26 is supplied with heat transfer medium having the flow temperature Heat source 16 is supplied is supplied.
  • To convey the heat carrier through the second heating circuit 26 serves the central circulation pump 18th
  • the switching valve 10 and the mixing valve 8 are formed identically.
  • D. h. The valve housing 56 of the mixing valve 8 is identical to the valve Housing 58 of the switching valve 10.
  • the valve element 40 of the mixing valve 8 is identical to the valve element 50 of the switching valve 10. Accordingly, the stepper motors 38 and 48 are identical.
  • the valve housing 56 of the mixing valve 8 is flanged directly to the suction nozzle 60 of the circulating pump unit 6, while the valve housing 58 of the reversing valve 10 is flanged directly to the discharge port 43 of the circulation pump unit 6.
  • a first valve seat 62 is located at the first outlet 44 and a second valve seat 64 is located at the second outlet 46.
  • the two valve seats 62 and 64 face each other, and the valve element 50 is located between the two valve seats 62 and 64 so that it can abut either the first valve seat 62 or the second valve seat 64.
  • the valve element 50 is arranged on a lever 66 which is led out of the valve housing 58 through a seal 68 and is moved there by the stepping motor 48.
  • the lever pivots about a pivot axis in the region of the seal 68.
  • the mixing valve 8 is, as described, identical. It has a first valve seat 70 on the first input 34 and a second valve seat 72 on the second input 36.
  • the valve seats 70 and 72 are also facing each other, so that the valve element 40 is located between them and can optionally come to rest on one of the valve seats 70 and 72.
  • the valve element 40 is also attached to a lever 66, which is led out of the valve housing 56 by a seal 68 and is moved there by the stepping motor 38. In this case, the lever 66 pivots about a pivot axis in the region of the passage in the seal 68.
  • the output 32 of the mixing valve 8 branches off from the space between the valve seats 70 and 72, as well as the input 42 of the change-over 10 in the room between the valve seats 62 and 64 opens.
  • the Functionality of the mixing valve 8 in contrast to the switching valve 10 is achieved in that the stepping motor 38 is controlled so that the valve element 40 can be moved between the two end positions, which are defined by the contact with the valve seats 70 and 72, in intermediate positions such that flow passages through both the valve seats 70 and 72 are opened.
  • the valve element 40 is located closer, the free flow cross sections of the first input 34 to the output 32 and from the second input 36 to the output 32 can be varied and changed in relation to each other, so that Mixing ratio of the currents flowing through them can be changed.
  • the second embodiment described below relates to the use of a rotationally driven valve element, which serves both as a valve element for the mixing valve and as a valve element for the switching valve.
  • the second embodiment relates to a variant of the subassembly 4, all other components of the heating system and the application according to the foregoing description.
  • the mixing valve and the switching valve are integrated together with the pump unit to form a structural unit.
  • a combined pump and valve housing 74 is provided for this purpose.
  • the pump housing and the valve housing could also be formed as separate, separate components or a component composed of several individual parts.
  • the pump unit has a stator or motor housing 76, which is connected to the pump and valve housing 4.
  • an electric drive motor 77 is arranged in a known manner, which drives a wheel 78 via a shaft 80.
  • the impeller 78 has a suction mouth 82 and is surrounded on the output side by a pressure chamber 84 in the interior of the pump and valve housing 74.
  • an electronics housing 86 is mounted, in which the control electronics 88 is arranged to control the drive motor 77. It is to be understood that the control device 52 could also be arranged in the electronics housing 86 or could be formed by the control electronics 88.
  • the combined pump and valve housing has four ports, which in this example are directed in four mutually offset directions 90 ° and extend away from the pump and valve housing 74 in a plane transverse to the axis of rotation X of the impeller 78. These four ports correspond to the first input 34 described above and the second input 36 of the mixing valve described above and the first output 44 and the second output 46 of the changeover valve.
  • the subassembly 4 can be formed by the subassembly shown in FIGS. 4 and 9 or by the circulating pump assembly with integrated valve device shown in FIGS. 4 and 9.
  • Figures 4 and 9 show an embodiment of the subassembly 4 of FIG. 1 in the form of a pump unit with integrated valve device, which takes over the functionality of the mixing valve 8 and the switching valve 10.
  • the inlets 34 and 36 and the outlets 44 and 46 in the interior open into four connection openings 90, 92, 94 and 96 at the bottom of the interior of the pump and valve housing 74.
  • the inlet 34 opens into the connection opening 90, the inlet 36 in the connection opening 92, the outlet 44 in the connection opening 94 and the outlet 46 in the connection opening 96.
  • the four connection openings 90, 92, 94 and 96 lie in a plane which extends normal to the longitudinal or rotational axis X.
  • a rotatable valve element 98 is arranged, which consists of a cup-shaped lower part 100 and a cover 102.
  • the lower part 100 and the dekelkel 102 form a drum-shaped, hollow inside valve member 98.
  • the valve member 98 is rotatable about the rotational axis X of the impeller 78 and arranged on a rotatable shaft 104, which is aligned with the motor shaft 80 along the axis of rotation X stretches.
  • the shaft 104 is connected to a stepping motor 106 so that the valve element 98 can be rotated by the stepping motor 106.
  • the stepper motor 106 is controlled by the control device 52, which could optionally be at least partially integrated into the control electronics 88.
  • the cover 102 of the valve element 98 has a central suction opening 108, which, as can be seen in Fig. 8, with the suction port 82 of the impeller 78 is engaged.
  • the suction port 108 communicates with the hollow interior of the valve element 98 in connection.
  • the valve element 98 In its underside 10 facing away from the cover 102, the valve element 98 has a first arcuate switching opening 12, which is open to the interior of the valve element 98, so that there is a flow connection between the first switching opening 12 and the suction opening 108.
  • a second arcuate switching opening 1 14 is formed, which is connected via a through-channel 1 16 with a pressure port 1 18 in the lid 102.
  • the pressure opening 1 18 opens into the pressure chamber 84.
  • the passage 1 1 6 is from the remaining interior of the valve element 98, as can be seen in Fig. 4, separated.
  • the two arcuate switching openings 1 12 and 1 14 are arranged in the bottom 1 10 so that they lie on a circular path, which is the four port openings 90, 92, 94 and 96 opposite, so depending on the rotation of the valve element 98 about the longitudinal axis X the switching openings 1 12 and 1 14 individual of the connection openings 90, 92, 94, 96 or optionally a plurality of these connection openings 90, 92, 94, 96 can be positioned opposite one another.
  • the resulting different switching positions are described with reference to FIGS. 7a to 7f, the cover 102 of the valve element 98 being removed in these illustrations.
  • the first switching opening 1 12 is above the switching opening 90 of the input 34. This creates a flow connection from the inlet 34 via the switching opening 1 12 and the interior of the valve element 98 to the suction opening 108 and thus made to the impeller 78, so that the impeller 78 draws in its rotation liquid through the first input 34 and thus liquid from the input port 14 (see Fig. 1).
  • the second switching opening 1 14 is arranged so that it in this switching position of the Ranöff- 96 of the second output 46 is opposite. In this way, a connection from the pressure chamber 94 via the through-channel 1 16 and the second switching opening 1 14 is made to the second output 46, which is connected to the hot water heat exchanger 12. In this switching position thus the heated heat carrier is conveyed to the hot water heat exchanger 12.
  • the two other connection openings 92 and 94 are closed in this switching position by the bottom 1 10 of the valve element 98.
  • Fig. 7b shows a second switching position in which the valve element 98 is rotated about the rotation axis X so that the switching opening 100 is located above the connection opening 94 of the first output 44 and the Switching port 96 of the second output 46 is closed.
  • the first switching opening 1 12 is formed in its curved extension direction so long that it continues to lie above the connection opening 90 of the first input 34. D. h., In this switching position, the flow path to the hot water heat exchanger 12 is closed and it is now promoted on rotation of the impeller 78, the liquid heat carrier through the first output 44 to the first heating circuit flow connection 22.
  • FIG. 7b shows the functionality of the mixing valve 8, which in this exemplary embodiment is likewise realized by rotation of the valve element 98, as described with reference to FIGS. 7d to 7f, which positions of the valve element 98 for FIG show different mixing ratios.
  • the second switching opening 14 is designed so long in its arcuate extension direction that it fully covers the connection opening 94 of the first outlet 44 in all angular positions of the valve element 98 with respect to the longitudinal axis X during the mixing, so that the first outlet 44 is opened
  • Fig. 7d shows a middle position in which the first switching opening 1 12 is positioned so that the connection openings 90 and 92 of the inputs 34 and 36 covered by the same amount, and preferably both are fully open.
  • Fig. 7c shows a switching position in which the connection opening 92 is further closed, while the connection opening 90 is still substantially fully opened. D. h., In this switching position, a larger flow fraction flows from the input 34, that is, less cooled heat transfer medium via the second input 36 is mixed to provide a higher flow temperature at the first heating circuit flow connection 22.
  • FIG. 7e shows a positioning of the valve element 98 in opposite Direction in which the connection opening 90 is less widely opened, that is closed on the underside of the valve element 98, while the connection opening 92 is still fully open. In this switching position thus less heated heat transfer medium and more cooled heat transfer medium is supplied and thus a lower flow temperature at the first heating circuit flow connection 22 is provided.
  • Fig. 7f shows a switching position in which only the connection opening 92 is covered by the switching position 1 12, that is, the switching opening 90 is completely closed. In this switching position, therefore, only cooled heat carrier is sucked out of the inlet 36 and no heated heat carrier from the inlet connection 14 is mixed in more.
  • the second embodiment described is suitable for the hot water heat exchanger 12 can be connected directly to the second output 46 of the switching valve 10, ie, the combined pump and valve housing 74.
  • the corresponding connection to the pump and valve housing deviating from the embodiment shown can extend parallel to the axis of rotation X to the rear away from the housing.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Water Supply & Treatment (AREA)
  • Multiple-Way Valves (AREA)
  • Steam Or Hot-Water Central Heating Systems (AREA)

Abstract

L'invention concerne un module hydraulique comprenant un raccord d'entrée (14), un groupe de pompe de circulation (6; 78), au moins un raccord de canalisation montante de circuit de chauffage (22) situé en aval du groupe de pompe de circulation et un échangeur de chaleur d'eau sanitaire (12), une vanne de mélange (8) étant disposée en amont du groupe de pompe de circulation, laquelle vanne de mélange étant reliée par une sortie (32) au groupe de pompe de circulation (6; 78), par une première entrée (34) au raccord d'entrée (14) et par une deuxième entrée (36) à un raccord de retour de circuit de chauffage. Une vanne d'inversion (10) disposée en aval du groupe de pompe de circulation (6; 78) est reliée par une entrée au groupe de pompe de circulation (6; 78), par une première sortie (44) à l'au moins un raccord de canalisation montante de circuit de chauffage (22) et par une deuxième sortie (46) à l'échangeur de chaleur d'eau sanitaire (12).
PCT/EP2018/056081 2017-03-14 2018-03-12 Station domestique WO2018166970A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP17160829.2 2017-03-14
EP17160829.2A EP3376131B1 (fr) 2017-03-14 2017-03-14 Station d'appartement

Publications (1)

Publication Number Publication Date
WO2018166970A1 true WO2018166970A1 (fr) 2018-09-20

Family

ID=58401360

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2018/056081 WO2018166970A1 (fr) 2017-03-14 2018-03-12 Station domestique

Country Status (2)

Country Link
EP (1) EP3376131B1 (fr)
WO (1) WO2018166970A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE20001539U1 (de) * 2000-01-31 2000-04-20 Ikarus Solargroshandlung Raine Heizung
DE102008013124A1 (de) * 2008-03-07 2009-09-10 Meibes System-Technik Gmbh Mehrkreisige Heizungsanlage
EP2372257A2 (fr) * 2010-03-19 2011-10-05 I.V.A.R. S.P.A. Dispositif de distribution de l'eau pour chauffer
EP2397777A1 (fr) * 2010-06-19 2011-12-21 Grundfos Management A/S Unité de boîtier pour une installation de chauffage

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE20001539U1 (de) * 2000-01-31 2000-04-20 Ikarus Solargroshandlung Raine Heizung
DE102008013124A1 (de) * 2008-03-07 2009-09-10 Meibes System-Technik Gmbh Mehrkreisige Heizungsanlage
EP2372257A2 (fr) * 2010-03-19 2011-10-05 I.V.A.R. S.P.A. Dispositif de distribution de l'eau pour chauffer
EP2397777A1 (fr) * 2010-06-19 2011-12-21 Grundfos Management A/S Unité de boîtier pour une installation de chauffage

Also Published As

Publication number Publication date
EP3376131A1 (fr) 2018-09-19
EP3376131B1 (fr) 2021-06-30

Similar Documents

Publication Publication Date Title
EP3037704B1 (fr) Vanne mélangeuse
EP2871422B2 (fr) Distributeur hydraulique pour un système de chauffage et/ou de refroidissement hydraulique
EP2871420B1 (fr) Module de pompe de circulation pour un système de chauffage et/ou de refroidissement
EP3066395B1 (fr) Distributeur hydraulique pour un système de chauffage et/ou de refroidissement hydraulique
EP3361182B1 (fr) Module hydraulique pour une installation de chauffage ou de climatisation
WO2017063970A1 (fr) Groupe motopompe et système hydraulique
WO2018167043A1 (fr) Groupe motopompe
EP0529353B1 (fr) Chaudière à gaz
EP0358843B1 (fr) Pompes pour une installation de chauffage à eau chaude
DE19834575C5 (de) Drehschieberventil
WO2018166969A1 (fr) Groupe motopompe
WO2018166970A1 (fr) Station domestique
EP3012553B1 (fr) Composant pour une installation de chauffage
EP1884717A1 (fr) Appareil de chauffage
EP1838916B1 (fr) Unite de commande pour l'alimentation d'appareils menagers utilisant de l'eau
WO2018166971A1 (fr) Groupe motopompe
DE2246790A1 (de) Foerderanlage fuer zentralheizungsanlagen mit automatischer regelung
DE3121055A1 (de) Drei- oder vierwegmischventil
DE9318764U1 (de) Geräteanordnung für ein Heizungs-, Lüftungs- und Warmwasserzubereitungssystem
DE3602212C2 (fr)
WO2018166967A1 (fr) Ensemble pompe centrifuge
EP3376082B1 (fr) Dispositif de soupape
EP0700501B1 (fr) Raccord pour le raccordement a leur source de chaleur de radiateurs faisant partie du circuit de chauffage de l'installation de chauffage d'un batiment
EP0359901B1 (fr) Mélangeur pour installation de chauffage à eau chaude
EP1656518A1 (fr) Systeme a soupapes de distribution modulaire

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 18715491

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 18715491

Country of ref document: EP

Kind code of ref document: A1