EP4382815A1 - Fitting unit - Google Patents
Fitting unit Download PDFInfo
- Publication number
- EP4382815A1 EP4382815A1 EP23211874.5A EP23211874A EP4382815A1 EP 4382815 A1 EP4382815 A1 EP 4382815A1 EP 23211874 A EP23211874 A EP 23211874A EP 4382815 A1 EP4382815 A1 EP 4382815A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- heating water
- pressure
- water circuit
- component
- fitting unit
- 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.)
- Pending
Links
- 239000008236 heating water Substances 0.000 claims abstract description 137
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 69
- 238000010438 heat treatment Methods 0.000 claims abstract description 10
- 239000012530 fluid Substances 0.000 claims abstract description 4
- 238000001816 cooling Methods 0.000 claims abstract description 3
- 230000033228 biological regulation Effects 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 3
- 230000001276 controlling effect Effects 0.000 description 2
- 238000013022 venting Methods 0.000 description 2
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- 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
- F24D3/1083—Filling valves or arrangements for filling
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D19/00—Details
- F24D19/08—Arrangements for drainage, venting or aerating
- F24D19/082—Arrangements for drainage, venting or aerating for water heating systems
- F24D19/088—Draining arrangements
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- 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
- F24H15/00—Control of fluid heaters
- F24H15/20—Control of fluid heaters characterised by control inputs
- F24H15/242—Pressure
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- 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
- F24H15/00—Control of fluid heaters
- F24H15/30—Control of fluid heaters characterised by control outputs; characterised by the components to be controlled
- F24H15/305—Control of valves
- F24H15/31—Control of valves of valves having only one inlet port and one outlet port, e.g. flow rate regulating valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D2220/00—Components of central heating installations excluding heat sources
- F24D2220/04—Sensors
- F24D2220/046—Pressure sensors
Definitions
- Heating water circuits carrying heating water are known from the prior art as part of heating systems that serve to heat or cool a usable space or a usable fluid.
- These heating water circuits comprise at least one heat generator, for example a boiler or a heat pump, at least one heat consumer, for example a radiator or a panel heater, and pipes for connecting the heat generator and heat consumer in a way that conducts heating water.
- the heat generated is conducted from the heat generator through the pipes to the heat consumer by means of the heating water circulating through the heating water circuit.
- the heating water is under pressure, in particular in order to safely reach the heat generator and/or all heat consumers. During operation, the heating water can assume different temperatures, expanding as temperatures rise according to its thermal volume expansion coefficient or contracting as temperatures fall.
- Heating water circuits are usually closed hydraulic systems and have a certain amount of water. Expansion vessels arranged in the heating water circuit compensate for the increase in volume when the heating water is heated and the decrease in volume when it is cooled, thus protecting the heating water circuit from damage. Expansion vessels can be difficult to install and/or accommodate due to their geometric size. Due to their compensation concept, for example as a membrane expansion vessel, expansion vessels are prone to errors and are at risk of failure.
- the invention is based on a fitting unit with a connection for hydraulic connection to a heating water circuit carrying heating water, wherein the heating water circuit is provided for heating and/or cooling a usable space and/or a usable fluid.
- the fitting unit is designed to set a hydraulic pressure in the heating water circuit and comprises an inlet component with a connection for hydraulic connection to a water supply line and an outlet component with a connection for hydraulic connection to a drain.
- the inlet component is designed to fill the heating water circuit with water and/or to set a minimum hydraulic pressure.
- the outlet component is designed to set a maximum hydraulic pressure and/or to drain heating water from the heating water circuit.
- a fitting unit is to be understood as a fluid-conducting combination fitting and/or a fluid-conducting structural unit that combines at least two basic functions in one unit.
- a water supply line is to be understood as a water source and/or a line of a water supplier for supplying and/or filling the heating water circuit with water. The water pressure in the water supply line is generally greater than the water pressure in the heating water circuit.
- a drain is to be understood as a sink, in particular a pressureless sink, for draining and/or guiding water away from the heating water circuit.
- a hydraulic connection is to be understood as a fluid-conducting and/or heating water-conducting connection.
- An inlet component is to be understood as a controllable or controllable component of the fitting unit for the controlled and/or regulated filling and/or supply and/or
- the inlet component comprises in particular an adjustable or controllable valve, such as an inlet valve or a solenoid valve or motor valve.
- an adjustable or controllable valve such as an inlet valve or a solenoid valve or motor valve.
- a passage cross-section of the inlet component, in particular the valve of the inlet component is opened, in particular until the heating water circuit is filled and/or the water pressure reaches and/or exceeds the minimum pressure, then the passage cross-section of the inlet component, in particular the valve of the inlet component, can be closed.
- a drain component is to be understood here in particular as an adjustable or controllable component of the fitting unit for the regulated and/or controlled discharge and/or removal of water from the heating water circuit into the drain.
- the drain component comprises in particular an adjustable or controllable valve, such as a spring-loaded valve, a safety valve, a pressure relief valve, a solenoid valve or motor valve.
- an adjustable or controllable valve such as a spring-loaded valve, a safety valve, a pressure relief valve, a solenoid valve or motor valve.
- Setting a minimum pressure should be understood here in particular to mean reaching and/or maintaining and/or exceeding a minimum pressure.
- a hydraulic minimum pressure should be understood here in particular to mean a minimum pressure and/or lower limit pressure of the heating water in the heating water circuit, which must not be undercut and which must be avoided in order to maintain safe operation of the heating water circuit, in particular by supplying water from the water supply line to the heating water circuit.
- Setting a maximum pressure should be understood here in particular to mean reaching and/or maintaining and/or falling below a maximum pressure.
- a hydraulic maximum pressure is to be understood here in particular as a maximum pressure and/or upper limit pressure of the heating water in the heating water circuit, which exceeding is not permitted and must be avoided in order to maintain safe operation of the heating water circuit, in particular by draining water from the heating water circuit into the drain.
- a connection can be understood here in particular as a pipe socket or pipe end or pipe outlet cross-section of a pipe section with a thread or a coupling or a flange for connecting, in particular, to the heating water circuit, the water supply line or the drain.
- the regulation and/or control and/or the opening/closing and/or the switching on/off of both the inlet component and the outlet component can be subject to a hysteresis.
- the hysteresis represents a difference between an opening pressure (in particular switch-on pressure) and a closing pressure (in particular switch-off pressure).
- the inlet component opens when the minimum pressure is reached or undershot and allows water to flow into the heating water circuit; that the inlet component then closes when a first cut-off pressure that is above the minimum pressure by a first hysteresis amount is reached or exceeded and no longer allows water to flow.
- the drain component opens when the maximum pressure is reached or exceeded and allows water to drain from the heating water circuit; that the drain component then closes when a second cut-off pressure is reached or undershot, which is below the maximum pressure by a second hysteresis amount, and no more water can drain.
- the second cut-off pressure of the drain component which is below the maximum pressure by a second hysteresis amount, is greater than the first cut-off pressure of the inlet component, which is above the minimum pressure by a first hysteresis amount.
- the design according to the invention creates a fitting unit by means of which a heating water circuit can be functionally and safely secured.
- the fitting unit represents a convenient and compact solution for filling, pressure maintenance and overpressure protection, in particular automatic filling.
- a permissible minimum water pressure in the heating water circuit is safely reached and exceeded by means of the inlet component; water losses and underfilling are safely balanced and compensated for by refilling.
- a permissible maximum water pressure is safely set and undercut by means of the outlet component; excess water volume due to thermal expansion is safely drained away by draining.
- the fitting unit therefore represents a fallback solution in particular if an existing expansion vessel fails.
- the fitting unit represents a fallback solution in particular if there is no space to install an expansion vessel, for example due to limited space.
- the fitting unit has at least one pipe section for hydraulically connecting the connection to the heating water circuit with the inlet component and the outlet component and optionally with a pressure sensor and/or a pressure switch.
- the fitting unit has exactly one pipe section for hydraulically connecting the connection to the heating water circuit with the inlet component and the outlet component and optionally with a pressure sensor and/or a pressure switch.
- the inlet component, the outlet component and optionally the pressure sensor and/or the pressure switch are connected in particular at the end and/or by means of T-pipe pieces to the pipeline section.
- the inlet component can be controlled by a control unit depending on the hydraulic water pressure in the heating water circuit, whereby the control unit is designed to receive a pressure signal from a pressure sensor hydraulically connected to the heating water circuit.
- regulation can also be understood as controlling.
- a control unit is understood here to be an electrical or electronic device for storing predeterminable values such as a minimum pressure and a maximum pressure and/or a hysteresis amount, for receiving sensor signals and for calculating, generating and outputting regulation, control and/or switching signals.
- a pressure sensor is understood here to be a sensor and/or measuring device that measures the hydraulic water pressure in the heating water circuit.
- the inlet component can in particular comprise an electric motor valve or solenoid valve which is controlled by the control unit to open and/or close.
- control unit and/or the pressure sensor are part of the valve unit.
- control unit and/or the pressure sensor can be part of the heating water circuit or part of a heating system comprising the heating water circuit.
- the inlet component can be controlled by a pressure switch hydraulically connected to the heating water circuit.
- a pressure switch is to be understood here in particular as a device for opening/closing or switching on/off the inlet component.
- the pressure switch reacts when a water pressure is reached and/or exceeded and/or undershot, in particular the minimum pressure and/or the cut-off pressure that deviates from the minimum pressure by a hysteresis amount, in the heating water circuit.
- the pressure switch is designed to map a hysteresis when regulating and/or controlling and/or when opening/closing and/or when switching on/off the inlet component.
- the inlet component can advantageously monitor and maintain the predeterminable minimum pressure in the heating water circuit independently and/or autonomously.
- the inlet component can comprise a spring-loaded valve, in particular a spring-loaded diaphragm valve.
- the pressure switch is part of the valve unit.
- the pressure switch can be part of the heating water circuit or part of a heating system that includes the heating water circuit.
- the drain component comprises a pressure limiter or a safety valve or a pressure relief valve.
- the drain component can be designed as a pressure limiter or safety valve or pressure relief valve.
- a drain component can advantageously monitor the predeterminable maximum pressure in the heating water circuit independently and/or autonomously and maintain it by opening and/or closing.
- the drain component can comprise a spring-loaded valve, in particular a spring-loaded diaphragm valve.
- the drain component may in particular comprise an electric motor valve or solenoid valve which is controlled by the control unit to open and/or close.
- a further preferred embodiment comprises a backflow preventer for preventing a backflow of water from the fitting unit and/or the heating water circuit into the water supply line, the backflow preventer being hydraulically connected, in particular, between the inlet component and the connection to the water supply line.
- the backflow preventer can be designed as a check valve. This prevents any contaminated heating water from flowing out of the heating water circuit and/or the fitting unit into the water supply line.
- a further preferred embodiment has a casing unit defining an interior space, wherein the inlet component and the outlet component and optionally a pipe section and/or a control unit and/or a pressure sensor and/or a pressure switch and/or a backflow preventer are arranged in the interior space, and wherein the connections for hydraulic connection to the heating water circuit, the water supply line and the drain are accessible from the outside, in particular accessible for assembly, in particular on the casing unit.
- a casing unit is understood here to mean in particular a housing with one or more housing walls.
- the casing unit in particular provides access protection (contact protection) for the components of the fitting unit.
- the inlet component begins filling when the heating water circuit is empty or insufficiently filled and continues until a predetermined operating pressure is reached.
- the drain component opens and the operating pressure level of the heating water circuit remains constant for a while because a flow rate at the inlet component matches a flow rate at the drain component.
- both the inlet component and the drain component are open. The duration of this phase depends on the venting of the heating water circuit. After venting, the inlet component closes and stops filling, then the drain component closes and stops the drain. This means that the heating water circuit reaches the operating pressure. For heaters, this value can be between 1.5 and 2 bar.
- FIG 1 shows schematically a heating water circuit 10 (here outlined by its system boundary) and a first valve unit 100 hydraulically connected to the heating water circuit 10 (here outlined by its system boundary).
- the heating water circuit 10 comprises a heat generator 12, a heat consumer 14 and pipes 16 for connecting the heat generator 12 and the heat consumer 14 in a way that conducts heating water.
- the heat generated is conducted from the heat generator 12 through the flow pipe 16-1 to the heat consumer 14 by means of the heating water circulating through the heating water circuit 10 (arrows).
- the heating water cooled in the heat consumer 14 flows back to the heat generator 12 through the return pipe 16-2.
- the heating water circuit 10 is designed as a closed hydraulic system and has a certain amount of heating water.
- the heating water is under pressure.
- the fitting unit 100 arranged in or on the heating water circuit 10 compensates for the increase in volume during heating and the Volume decrease when the heating water cools down and thus protects the heating water circuit 10 from damage.
- the fitting unit 100 comprises a connection 102 for hydraulically connecting the fitting unit 100 to the heating water circuit 10 and is designed to set a water pressure in the heating water circuit 10.
- the fitting unit 100 comprises an inlet component 110 with a connection 112 for hydraulically connecting to a water supply line 20 and an outlet component 120 with a connection 122 for hydraulically connecting to a drain 30.
- the inlet component 110 is used to fill (see arrow at connection 112) the heating water circuit 10 with water and to set or maintain a minimum hydraulic pressure.
- the outlet component 120 is used to set or maintain a maximum hydraulic pressure and to drain (see arrow at connection 122) heating water from the heating water circuit 10.
- the outlet component 120 comprises a safety valve or a pressure relief valve.
- a pipe section 130 connects the connection 102 to the heating water circuit 10 with the inlet component 110 and the outlet component 120.
- the inlet component 110 is controlled by a control unit 160 depending on the hydraulic pressure in the heating water circuit 10.
- the control unit 160 receives a pressure signal D from a pressure sensor 140 hydraulically connected to the heating water circuit 10.
- the control unit 160 and the pressure sensor 140 are part of the heating water circuit 10 or part of a heating system comprising the heating water circuit 10.
- the pressure sensor 140 measures a measured value of the water pressure in the heating water circuit 10 and sends a corresponding pressure signal D to the control unit 160.
- the control unit 160 in the Figures 1 and 2 compares the measured value of the pressure signal D with a stored value of the minimum pressure. If the measured value is greater than the minimum value, the control unit 160 outputs a control signal R to close or keep closed the inlet component 110 (alternatively, a missing control signal R ensures that the Inlet component 110 closes or remains closed); the inlet component 110 is closed.
- the control unit 160 outputs a control signal R to the inlet component 110 for filling or refilling the heating water circuit 10; the inlet component 110 opens, in particular the inlet component 110 opens an inlet valve; water flows from the water supply line 20 through the inlet component 110 and the pipe section 130 into the heating water circuit 10, fills it up and increases the water pressure in the heating water circuit 10 to a measured value that is greater than or equal to the minimum value.
- control unit 160 If the measured value is greater than or equal to the predefinable and/or stored minimum value, in particular greater than or equal to a predefinable and/or stored first switch-off pressure value, the control unit 160 outputs a control signal R to close the inlet component 110, whereby the inflow of water into the pipe section 130 and into the heating water circuit 10 is stopped; alternatively, a lack of control signal R ensures that the inlet component 110 closes.
- the drain component 120 in particular a safety valve or pressure relief valve included in the drain component 120, remains closed. If the water pressure increases, for example due to a rise in temperature and an associated increase in volume, and is greater than the maximum value, the drain component 120 switches or opens and allows water to drain from the heating water circuit 10 through the pipe section 130 into the drain 30, as a result of which the pressure in the heating water circuit 10 drops. If the measured pressure value falls to a value less than or equal to the maximum value, in particular to a value less than or equal to a second switch-off pressure value, the drain component 120 closes the connection to the drain 30 and no water flows out of the heating water circuit 10.
- FIG. 2 shows schematically a heating water circuit 10 and a second fitting unit 100 hydraulically connected to the heating water circuit 10.
- the inlet component 110 is controlled by a control unit 160 depending on the hydraulic pressure in the heating water circuit 10 by means of a control signal R; for this purpose, the control unit 160 receives a pressure signal D from a pressure sensor 140 hydraulically connected to the pipe section 130.
- the control unit 160 and the pressure sensor 140 are part of the fitting unit 100; the pressure sensor 140 is hydraulically connected to the heating water circuit 10 via the pipe section 130.
- the pressure sensor 140 measures the water pressure in the pipe section 130 and sends a corresponding pressure signal D to the control unit 160.
- the fitting units 100 of the Figures 2 to 4 have a casing unit 180, in particular a housing, defining an interior space 182.
- the inlet component 110, the outlet component 120 and the pipe section 130 are arranged in the interior 182.
- the control unit 160 and the pressure sensor 140 are arranged in the interior 182.
- a backflow preventer 170 is arranged in the interior 182.
- a pressure switch 150 is arranged in the interior 182.
- the connections 102, 112, 122 for hydraulic connection to the heating water circuit 10, the water supply line 20 and the drain 30 are accessible from the outside, in particular arranged on the casing unit 180.
- the casing unit 180 comprises a housing by means of which the fitting unit 100 is protected, for example, from unauthorized access.
- Figure 3 shows schematically a heating water circuit 10 and a third fitting unit 100 hydraulically connected to the heating water circuit 10.
- the inlet component 110 is controlled, in particular switched, by a pressure switch 150 depending on the hydraulic pressure in the heating water circuit 10 by means of a switching signal S; for this purpose, the pressure switch 150 is hydraulically connected to the heating water circuit 10.
- the pressure switch 150 is part of the heating water circuit 10 or a heating system comprising the heating water circuit 10.
- the pressure switch 150 detects the water pressure in the heating water circuit 10, compares it with a predeterminable minimum value and/or first switch-off pressure value (in particular stored as switching thresholds in the pressure switch 150) and outputs a corresponding Switching signal S to the inlet component 110. If the detected water pressure is less than the minimum value, the pressure switch 150 sends a switching signal S to the inlet component 110 to fill the heating water circuit 10 with water.
- the pressure switch 150 sends a switching signal S to the inlet component 110 to stop the filling; alternatively, a missing switching signal S ensures that the inlet component 110 closes.
- the fitting unit in Figure 3 comprises a backflow preventer 170 which prevents heating water from flowing back from the heating water circuit 10 and the fitting unit 100 into the water supply line 20.
- FIG. 4 shows schematically a heating water circuit 10 and a fourth valve unit 100 hydraulically connected to the heating water circuit 10.
- the inlet component 110 is controlled, in particular switched, by a pressure switch 150 as a function of the hydraulic pressure in the heating water circuit 10 by means of a switching signal S; for this purpose, the pressure switch 150 is hydraulically connected to the heating water circuit 10 via the pipe section 130.
- the pressure switch 150 is part of the fitting unit 100.
- the pressure switch 150 detects the water pressure in the pipe section 130, compares it with a predeterminable minimum value and/or first switch-off pressure value and sends a corresponding switching signal S to the inlet component 110. If the detected water pressure is less than the minimum value, the pressure switch 150 sends a switching signal S to the inlet component 110 to fill the heating water circuit 10 with water.
- the pressure switch 150 sends a switching signal S to the inlet component 110 to stop the filling; alternatively, an absence of a switching signal S ensures that the inlet component 110 closes.
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
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- General Engineering & Computer Science (AREA)
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Abstract
Die Erfindung geht von einer Armatureneinheit (100) mit einem Anschluss (102) zum hydraulischen Verbinden mit einem Heizungswasser führenden Heizungswasserkreis (10) aus, wobei der Heizungswasserkreis (10) zur Beheizung und/oder Kühlung eines Nutzraumes und/oder eines Nutzfluides vorgesehen ist. Es wird vorgeschlagen, dass die Armatureneinheit (100) zur Einstellung eines hydraulischen Drucks im Heizungswasserkreis (10) ausgebildet ist und eine Zulaufkomponente (110) mit einem Anschluss (112) zum hydraulischen Verbinden mit einer Wasserversorgungsleitung (20) sowie eine Ablaufkomponente (120) mit einem Anschluss (122) zum hydraulischen Verbinden mit einem Abfluss (30) umfasst. Die Zulaufkomponente (110) ist zum Befüllen des Heizungswasserkreises (10) mit Wasser und zum Einstellen eines hydraulischen Minimaldruckes ausgebildet. Die Ablaufkomponente (120) ist zum Einstellen eines hydraulischen Maximaldruckes und zum Ablaufen von Heizungswasser aus dem Heizungswasserkreis (10) ausgebildet.The invention is based on a fitting unit (100) with a connection (102) for hydraulically connecting to a heating water circuit (10) carrying heating water, wherein the heating water circuit (10) is provided for heating and/or cooling a usable space and/or a usable fluid. It is proposed that the fitting unit (100) is designed to set a hydraulic pressure in the heating water circuit (10) and comprises an inlet component (110) with a connection (112) for hydraulically connecting to a water supply line (20) and an outlet component (120) with a connection (122) for hydraulically connecting to a drain (30). The inlet component (110) is designed to fill the heating water circuit (10) with water and to set a minimum hydraulic pressure. The drain component (120) is designed to set a maximum hydraulic pressure and to drain heating water from the heating water circuit (10).
Description
Aus dem Stand der Technik sind Heizungswasser führende Heizungswasserkreise als Teil von Heizungsanlagen, die dem Erwärmen oder Kühlen eines Nutzraums oder eines Nutzfluids dienen, bekannt. Diese Heizungswasserkreise umfassen zumindest einen Wärmeerzeuger, beispielsweise einen Heizkessel oder eine Wärmepumpe, zumindest einen Wärmeverbraucher, beispielsweise einen Radiator oder einen Flächenheizkörper, sowie Rohrleitungen zum Heizungswasser leitenden Verbinden von Wärmeerzeuger und Wärmeverbraucher. Die erzeugte Wärme wird mittels des durch den Heizungswasserkreis zirkulierenden Heizungswassers vom Wärmeerzeuger durch die Rohrleitungen zum Wärmeverbraucher geleitet. Das Heizungswasser steht unter Druck, insbesondere um sicher den Wärmeerzeuger und/oder alle Wärmeverbraucher zu erreichen. Im Betrieb kann das Heizungswasser verschiedene Temperaturen annehmen, dabei dehnt es sich bei steigenden Temperaturen entsprechend seines thermischen Volumenausdehnungskoeffizienten aus oder zieht sich bei sinkenden Temperaturen zusammen. Heizungswasserkreise sind üblicherweise geschlossene hydraulische Systeme und weisen eine bestimmte Wassermenge auf. Im Heizungswasserkreis angeordnete Ausdehnungsgefäße kompensieren die Volumenzunahme bei Erwärmung und die Volumenabnahme bei Abkühlung des Heizungswassers und bewahren so den Heizungswasserkreis vor Beschädigung. Dabei können Ausdehnungsgefäße aufgrund ihrer geometrischen Größe räumlich schwierig zu installieren und/oder unterzubringen sein. Aufgrund ihres Kompensationskonzeptes, beispielsweise als Membranausdehnungsgefäß, sind Ausdehnungsgefäße fehleranfällig und ausfallgefährdet.Heating water circuits carrying heating water are known from the prior art as part of heating systems that serve to heat or cool a usable space or a usable fluid. These heating water circuits comprise at least one heat generator, for example a boiler or a heat pump, at least one heat consumer, for example a radiator or a panel heater, and pipes for connecting the heat generator and heat consumer in a way that conducts heating water. The heat generated is conducted from the heat generator through the pipes to the heat consumer by means of the heating water circulating through the heating water circuit. The heating water is under pressure, in particular in order to safely reach the heat generator and/or all heat consumers. During operation, the heating water can assume different temperatures, expanding as temperatures rise according to its thermal volume expansion coefficient or contracting as temperatures fall. Heating water circuits are usually closed hydraulic systems and have a certain amount of water. Expansion vessels arranged in the heating water circuit compensate for the increase in volume when the heating water is heated and the decrease in volume when it is cooled, thus protecting the heating water circuit from damage. Expansion vessels can be difficult to install and/or accommodate due to their geometric size. Due to their compensation concept, for example as a membrane expansion vessel, expansion vessels are prone to errors and are at risk of failure.
Es ist Aufgabe der Erfindung, eine Armatureneinheit bereitzustellen, die das Ausdehnungsgefäß in seiner Funktion im Heizungswasserkreis unterstützen oder ersetzen kann.It is an object of the invention to provide a fitting unit which can support or replace the expansion vessel in its function in the heating water circuit.
Die Erfindung geht von einer Armatureneinheit mit einem Anschluss zum hydraulischen Verbinden mit einem Heizungswasser führenden Heizungswasserkreis aus, wobei der Heizungswasserkreis zur Beheizung und/oder Kühlung eines Nutzraumes und/oder eines Nutzfluides vorgesehen ist.The invention is based on a fitting unit with a connection for hydraulic connection to a heating water circuit carrying heating water, wherein the heating water circuit is provided for heating and/or cooling a usable space and/or a usable fluid.
Es wird vorgeschlagen, dass die Armatureneinheit zur Einstellung eines hydraulischen Drucks im Heizungswasserkreis ausgebildet ist und eine Zulaufkomponente mit einem Anschluss zum hydraulischen Verbinden mit einer Wasserversorgungsleitung sowie eine Ablaufkomponente mit einem Anschluss zum hydraulischen Verbinden mit einem Abfluss umfasst. Die Zulaufkomponente ist zum Befüllen des Heizungswasserkreises mit Wasser und/oder zum Einstellen eines hydraulischen Minimaldruckes ausgebildet. Die Ablaufkomponente ist zum Einstellen eines hydraulischen Maximaldruckes und/oder zum Ablaufen von Heizungswasser aus dem Heizungswasserkreis ausgebildet.It is proposed that the fitting unit is designed to set a hydraulic pressure in the heating water circuit and comprises an inlet component with a connection for hydraulic connection to a water supply line and an outlet component with a connection for hydraulic connection to a drain. The inlet component is designed to fill the heating water circuit with water and/or to set a minimum hydraulic pressure. The outlet component is designed to set a maximum hydraulic pressure and/or to drain heating water from the heating water circuit.
Unter einer Armatureneinheit soll in diesem Zusammenhang insbesondere eine fluidleitende Kombinationsarmatur und/oder eine fluidleitende bauliche Einheit verstanden werden, die zumindest zwei Grundfunktionen in einer Einheit vereint. Unter einer Wasserversorgungsleitung soll hier insbesondere eine Wasserquelle und/oder eine Leitung eines Wasserversorgers zum Versorgen und/oder Befüllen des Heizungswasserkreises mit Wasser verstanden werden. Ein Wasserdruck in der Wasserversorgungsleitung ist in der Regel größer als ein Wasserdruck im Heizungswasserkreis. Unter einem Abfluss soll hier eine, insbesondere drucklose, Senke zum Ableiten und/oder Wegleiten von Wasser aus dem Heizungswasserkreis verstanden werden. Unter einem hydraulischen Verbinden soll hier insbesondere ein fluidleitendes und/oder Heizungswasser-leitendes Verbinden verstanden werden. Unter einer Zulaufkomponente soll hier insbesondere eine regelbare oder steuerbare Komponente der Armatureneinheit zum geregelten und/oder gesteuerten Befüllen und/oder Zuführen und/oderIn this context, a fitting unit is to be understood as a fluid-conducting combination fitting and/or a fluid-conducting structural unit that combines at least two basic functions in one unit. A water supply line is to be understood as a water source and/or a line of a water supplier for supplying and/or filling the heating water circuit with water. The water pressure in the water supply line is generally greater than the water pressure in the heating water circuit. A drain is to be understood as a sink, in particular a pressureless sink, for draining and/or guiding water away from the heating water circuit. A hydraulic connection is to be understood as a fluid-conducting and/or heating water-conducting connection. An inlet component is to be understood as a controllable or controllable component of the fitting unit for the controlled and/or regulated filling and/or supply and/or
Nachfüllen von Wasser aus der Wasserversorgungsleitung in den Heizungswasserkreis verstanden werden. Die Zulaufkomponente umfasst insbesondere ein regelbares oder steuerbares Ventil, wie ein Zulaufventil oder ein Magnetventil oder Motorventil. Zum Befüllen und/oder Zuführen und/oder Nachfüllen von Wasser und/oder zum Einstellen eines Minimaldrucks wird ein Durchtrittsquerschnitt der Zulaufkomponente, insbesondere das Ventil der Zulaufkomponente, geöffnet, insbesondere solange, bis der Heizungswasserkreis befüllt und/oder der Wasserdruck den Minimaldruck erreicht und/oder überschreitet, dann kann der Durchtrittsquerschnitt der Zulaufkomponente, insbesondere das Ventil der Zulaufkomponente, geschlossen werden. Unter einer Ablaufkomponente soll hier insbesondere eine regelbare oder steuerbare Komponente der Armatureneinheit zum geregelten und/oder gesteuerten Abführen und/oder Entnehmen von Wasser aus dem Heizungswasserkreis in den Abfluss verstanden werden. Die Ablaufkomponente umfasst insbesondere ein regelbares oder steuerbares Ventil, wie ein federbelastetes Ventil, ein Sicherheitsventil, ein Überdruckventil, ein Magnetventil oder Motorventil. Zum Abführen und/oder Entnehmen von Wasser und/oder zum Einstellen, insbesondere Einhalten, eines Maximaldrucks wird ein Durchtrittsquerschnitt der Ablaufkomponente, insbesondere das Ventil der Ablaufkomponente, geöffnet, insbesondere solange, bis der Wasserdruck den Maximaldruck unterschreitet, dann kann der Durchtrittsquerschnitt der Ablaufkomponente, insbesondere das Ventil der Ablaufkomponente, geschlossen werden. Unter einem Einstellen eines Minimaldruckes soll hier insbesondere ein Erreichen und/oder Einhalten und/oder Überschreiten eines Minimaldruckes verstanden werden. Unter einem hydraulischen Minimaldruck soll hier insbesondere ein Mindestdruck und/oder unterer Grenzdruck des Heizungswassers im Heizungswasserkreis verstanden werden, den zu unterschreiten nicht zulässig ist und zum Aufrechterhalten eines sicheren Betriebes des Heizungswasserkreises vermieden werden muss, insbesondere durch Zuführen von Wasser aus der Wasserversorgungsleitung in den Heizungswasserkreis. Unter einem Einstellen eines Maximaldruckes soll hier insbesondere ein Erreichen und/oder Einhalten und/oder Unterschreiten eines Maximaldruckes verstanden werden. Unter einem hydraulischen Maximaldruck soll hier insbesondere ein Höchstdruck und/oder oberer Grenzdruck des Heizungswassers im Heizungswasserkreis verstanden werden, den zu überschreiten nicht zulässig ist und zum Aufrechterhalten eines sicheren Betriebes des Heizungswasserkreises vermieden werden muss, insbesondere durch Abführen von Wasser aus dem Heizungswasserkreis in den Abfluss. Unter einem Anschluss kann hier insbesondere ein Rohrstutzen oder Rohrende oder Rohraustrittsquerschnitt eines Rohrleitungsabschnitts mit einem Gewinde oder einer Kupplung oder einem Flansch zum Verbinden, insbesondere mit dem Heizungswasserkreis, der Wasserversorgungsleitung oder dem Abfluss verstanden werden.Refilling water from the water supply line into the heating water circuit can be understood. The inlet component comprises in particular an adjustable or controllable valve, such as an inlet valve or a solenoid valve or motor valve. In order to fill and/or supply and/or refill water and/or to set a minimum pressure, a passage cross-section of the inlet component, in particular the valve of the inlet component, is opened, in particular until the heating water circuit is filled and/or the water pressure reaches and/or exceeds the minimum pressure, then the passage cross-section of the inlet component, in particular the valve of the inlet component, can be closed. A drain component is to be understood here in particular as an adjustable or controllable component of the fitting unit for the regulated and/or controlled discharge and/or removal of water from the heating water circuit into the drain. The drain component comprises in particular an adjustable or controllable valve, such as a spring-loaded valve, a safety valve, a pressure relief valve, a solenoid valve or motor valve. In order to drain and/or remove water and/or to set, in particular maintain, a maximum pressure, a passage cross-section of the drain component, in particular the valve of the drain component, is opened, in particular until the water pressure falls below the maximum pressure, then the passage cross-section of the drain component, in particular the valve of the drain component, can be closed. Setting a minimum pressure should be understood here in particular to mean reaching and/or maintaining and/or exceeding a minimum pressure. A hydraulic minimum pressure should be understood here in particular to mean a minimum pressure and/or lower limit pressure of the heating water in the heating water circuit, which must not be undercut and which must be avoided in order to maintain safe operation of the heating water circuit, in particular by supplying water from the water supply line to the heating water circuit. Setting a maximum pressure should be understood here in particular to mean reaching and/or maintaining and/or falling below a maximum pressure. A hydraulic maximum pressure is to be understood here in particular as a maximum pressure and/or upper limit pressure of the heating water in the heating water circuit, which exceeding is not permitted and must be avoided in order to maintain safe operation of the heating water circuit, in particular by draining water from the heating water circuit into the drain. A connection can be understood here in particular as a pipe socket or pipe end or pipe outlet cross-section of a pipe section with a thread or a coupling or a flange for connecting, in particular, to the heating water circuit, the water supply line or the drain.
Insbesondere können das Regeln und/oder Steuern und/oder das Öffnen/Schließen und/oder das Einschalten/Abschalten sowohl der Zulaufkomponente als auch der Ablaufkomponente einer Hysterese unterliegen. Insbesondere bildet die Hysterese eine Differenz zwischen einem Öffnungsdruck (insbesondere Einschaltdruck) und einem Schließdruck (insbesondere Abschaltdruck) ab.In particular, the regulation and/or control and/or the opening/closing and/or the switching on/off of both the inlet component and the outlet component can be subject to a hysteresis. In particular, the hysteresis represents a difference between an opening pressure (in particular switch-on pressure) and a closing pressure (in particular switch-off pressure).
Hinsichtlich der Zulaufkomponente ist somit insbesondere gewährleistet, dass die Zulaufkomponente ab einem Erreichen oder Unterschreiten des Minimaldrucks öffnet und Wasser in den Heizungswasserkreis zulaufen lässt; dass die Zulaufkomponente dann bei Erreichen oder Überschreiten eines um einen ersten Hysteresebetrag über dem Minimaldruck liegenden ersten Abschaltdrucks schließt und kein Wasser mehr zulaufen lässt.With regard to the inlet component, it is thus ensured in particular that the inlet component opens when the minimum pressure is reached or undershot and allows water to flow into the heating water circuit; that the inlet component then closes when a first cut-off pressure that is above the minimum pressure by a first hysteresis amount is reached or exceeded and no longer allows water to flow.
Hinsichtlich der Ablaufkomponente ist somit insbesondere gewährleistet, dass die Ablaufkomponente ab einem Erreichen oder Überschreiten des Maximaldrucks öffnet und Wasser aus dem Heizungswasserkreis ablaufen lässt; dass die Ablaufkomponente dann bei Erreichen oder Unterschreiten eines um einen zweiten Hysteresebetrag unter dem Maximaldruck liegenden zweiten Abschaltdrucks schließt und kein Wasser mehr ablaufen lässt. Dabei ist der um einen zweiten Hysteresebetrag unter dem Maximaldruck liegende zweite Abschaltdruck der Ablaufkomponente größer als der um einen ersten Hysteresebetrag über dem Minimaldruck liegende erste Abschaltdruck der Zulaufkomponente.With regard to the drain component, it is thus particularly ensured that the drain component opens when the maximum pressure is reached or exceeded and allows water to drain from the heating water circuit; that the drain component then closes when a second cut-off pressure is reached or undershot, which is below the maximum pressure by a second hysteresis amount, and no more water can drain. The second cut-off pressure of the drain component, which is below the maximum pressure by a second hysteresis amount, is greater than the first cut-off pressure of the inlet component, which is above the minimum pressure by a first hysteresis amount.
Mittels der erfindungsgemäßen Ausgestaltung ist eine Armatureneinheit geschaffen, mittels derer ein Heizungswasserkreis funktionell und sicherheitstechnisch abgesichert werden kann. Die Armatureneinheit stellt eine komfortable und kompakte Lösung für die, insbesondere selbsttätige, Befüllung, Druckhaltung und Überdrucksicherung dar. Ein zulässiger Mindestwasserdruck im Heizungswasserkreis wird mittels der Zulaufkomponente sicher erreicht und überschritten; Wasserverluste und Minderbefüllung werden durch Nachfüllen sicher ausgeglichen und kompensiert. Ein zulässiger Höchstwasserdruck wird mittels der Ablaufkomponente sicher eingestellt und unterschritten; aufgrund thermischer Ausdehnung überschüssiges Wasservolumen durch Ablassen sicher abgeführt. Damit stellt die Armatureneinheit insbesondere eine Rückfalllösung dar, falls ein vorhandenes Ausdehnungsgefäß ausfällt. Weiter stellt die Armatureneinheit insbesondere eine Rückfalllösung dar, falls, beispielsweise wegen räumlicher Enge, kein Platz für die Installation eines Ausdehnungsgefäßes vorhanden ist.The design according to the invention creates a fitting unit by means of which a heating water circuit can be functionally and safely secured. The fitting unit represents a convenient and compact solution for filling, pressure maintenance and overpressure protection, in particular automatic filling. A permissible minimum water pressure in the heating water circuit is safely reached and exceeded by means of the inlet component; water losses and underfilling are safely balanced and compensated for by refilling. A permissible maximum water pressure is safely set and undercut by means of the outlet component; excess water volume due to thermal expansion is safely drained away by draining. The fitting unit therefore represents a fallback solution in particular if an existing expansion vessel fails. Furthermore, the fitting unit represents a fallback solution in particular if there is no space to install an expansion vessel, for example due to limited space.
Bei einer bevorzugten Ausgestaltung weist die Armatureneinheit zumindest einen Rohrleitungsabschnitt zum hydraulischen Verbinden des Anschlusses zum Heizungswasserkreis mit der Zulaufkomponente und der Ablaufkomponente sowie optional mit einem Drucksensor und/oder einem Druckschalter auf.In a preferred embodiment, the fitting unit has at least one pipe section for hydraulically connecting the connection to the heating water circuit with the inlet component and the outlet component and optionally with a pressure sensor and/or a pressure switch.
Insbesondere weist die Armatureneinheit genau einen Rohrleitungsabschnitt zum hydraulischen Verbinden des Anschlusses zum Heizungswasserkreis mit der Zulaufkomponente und der Ablaufkomponente sowie optional mit einem Drucksensor und/oder einem Druckschalter auf.In particular, the fitting unit has exactly one pipe section for hydraulically connecting the connection to the heating water circuit with the inlet component and the outlet component and optionally with a pressure sensor and/or a pressure switch.
Die Zulaufkomponente, die Ablaufkomponente sowie optional der Drucksensor und/oder der Druckschalter sind insbesondere endseitig und/oder mittels T-Rohrstücken am Rohrleitungsabschnitt verbunden.The inlet component, the outlet component and optionally the pressure sensor and/or the pressure switch are connected in particular at the end and/or by means of T-pipe pieces to the pipeline section.
Bei einer weiteren bevorzugten Ausgestaltung ist die Zulaufkomponente von einer Regeleinheit in Abhängigkeit des hydraulischen Wasserdrucks im Heizungswasserkreis regelbar, dabei ist die Regeleinheit ausgebildet, ein Drucksignal von einem mit dem Heizungswasserkreis hydraulisch verbundenen Drucksensor zu empfangen.In a further preferred embodiment, the inlet component can be controlled by a control unit depending on the hydraulic water pressure in the heating water circuit, whereby the control unit is designed to receive a pressure signal from a pressure sensor hydraulically connected to the heating water circuit.
Unter einem Regeln kann hier insbesondere auch ein Steuern verstanden werden. Unter einer Regeleinheit soll hier insbesondere eine elektrische oder elektronische Vorrichtung zum Speichern von vorgebbaren Werten wie einem Minimaldruck und einem Maximaldruck und/oder einem Hysteresebetrag, zum Empfangen von Sensorsignalen sowie zum Berechnen, Generieren und Ausgeben von Regel-, Steuer- und/oder Schaltsignalen verstanden werden. Unter einem Drucksensor soll hier insbesondere ein den hydraulischen Wasserdruck im Heizungswasserkreis messender Sensor und/oder Messgerät verstanden werden.In particular, regulation can also be understood as controlling. A control unit is understood here to be an electrical or electronic device for storing predeterminable values such as a minimum pressure and a maximum pressure and/or a hysteresis amount, for receiving sensor signals and for calculating, generating and outputting regulation, control and/or switching signals. A pressure sensor is understood here to be a sensor and/or measuring device that measures the hydraulic water pressure in the heating water circuit.
Die Zulaufkomponente kann insbesondere ein elektrisches Motorventil oder Magnetventil umfassen, das von der Regeleinheit zum Öffnen und/oder Schließen angesteuert wird.The inlet component can in particular comprise an electric motor valve or solenoid valve which is controlled by the control unit to open and/or close.
Bei einer weiteren bevorzugten Ausgestaltung sind die Regeleinheit und/oder der Drucksensor Teil der Armatureneinheit.In a further preferred embodiment, the control unit and/or the pressure sensor are part of the valve unit.
Alternativ können die Regeleinheit und/oder der Drucksensor Teil des Heizungswasserkreises oder Teil einer den Heizungswasserkreis umfassenden Heizungsanlage sein.Alternatively, the control unit and/or the pressure sensor can be part of the heating water circuit or part of a heating system comprising the heating water circuit.
Bei einer weiteren bevorzugten Ausgestaltung ist die Zulaufkomponente von einem mit dem Heizungswasserkreis hydraulisch verbundenen Druckschalter steuerbar.In a further preferred embodiment, the inlet component can be controlled by a pressure switch hydraulically connected to the heating water circuit.
Unter einem Druckschalter soll hier insbesondere eine Vorrichtung zum Öffnen/Schließen beziehungsweise Einschalten/Ausschalten der Zulaufkomponente verstanden werden. Insbesondere reagiert der Druckschalter auf ein Erreichen und/oder Überschreiten und/oder Unterschreiten eines Wasserdrucks, insbesondere des Minimaldrucks und/oder des um einen Hysteresebetrag vom Minimaldruck abweichenden Abschaltdrucks, im Heizungswasserkreis. Insbesondere ist der Druckschalter dazu ausgebildet, eine Hysterese beim Regeln und/oder Steuern und/oder beim Öffnen/Schließen und/oder beim Einschalten/Ausschalten der Zulaufkomponente abzubilden.A pressure switch is to be understood here in particular as a device for opening/closing or switching on/off the inlet component. In particular, the pressure switch reacts when a water pressure is reached and/or exceeded and/or undershot, in particular the minimum pressure and/or the cut-off pressure that deviates from the minimum pressure by a hysteresis amount, in the heating water circuit. In particular, the pressure switch is designed to map a hysteresis when regulating and/or controlling and/or when opening/closing and/or when switching on/off the inlet component.
Die Zulaufkomponente kann vorteilhafterweise autark und/oder autonom den vorgebbaren Minimaldruck im Heizungswasserkreis überwachen und einhalten. Beispielsweise kann die Zulaufkomponente ein federbelastetes Ventil, insbesondere ein federbelastetes Membranventil, umfassen.The inlet component can advantageously monitor and maintain the predeterminable minimum pressure in the heating water circuit independently and/or autonomously. For example, the inlet component can comprise a spring-loaded valve, in particular a spring-loaded diaphragm valve.
Bei einer weiteren bevorzugten Ausgestaltung ist der Druckschalter Teil der Armatureneinheit.In a further preferred embodiment, the pressure switch is part of the valve unit.
Alternativ kann der der Druckschalter Teil des Heizungswasserkreises oder Teil einer den Heizungswasserkreis umfassenden Heizungsanlage sein.Alternatively, the pressure switch can be part of the heating water circuit or part of a heating system that includes the heating water circuit.
Bei einer weiteren bevorzugten Ausgestaltung umfasst die Ablaufkomponente einen Druckbegrenzer oder ein Sicherheitsventil oder ein Überdruckventil.In a further preferred embodiment, the drain component comprises a pressure limiter or a safety valve or a pressure relief valve.
Insbesondere kann die Ablaufkomponente als Druckbegrenzer oder Sicherheitsventil oder Überdruckventil ausgebildet sein. Eine Ablaufkomponente kann vorteilhafterweise autark und/oder autonom den vorgebbaren Maximaldruck im Heizungswasserkreis überwachen und durch Öffnen und/oder Schließen einhalten. Beispielsweise kann die Ablaufkomponente ein federbelastetes Ventil, insbesondere ein federbelastetes Membranventil, umfassen.In particular, the drain component can be designed as a pressure limiter or safety valve or pressure relief valve. A drain component can advantageously monitor the predeterminable maximum pressure in the heating water circuit independently and/or autonomously and maintain it by opening and/or closing. For example, the drain component can comprise a spring-loaded valve, in particular a spring-loaded diaphragm valve.
Alternativ kann die Ablaufkomponente insbesondere ein elektrisches Motorventil oder Magnetventil umfassen, das von der Regeleinheit zum Öffnen und/oder Schließen angesteuert wird.Alternatively, the drain component may in particular comprise an electric motor valve or solenoid valve which is controlled by the control unit to open and/or close.
Eine weitere bevorzugte Ausgestaltung umfasst einen Rückflussverhinderer zum Verhindern eines Rückflusses von Wasser aus der Armatureneinheit und/oder dem Heizungswasserkreis in die Wasserversorgungsleitung, dabei ist der Rückflussverhinderer hydraulisch verbunden insbesondere zwischen der Zulaufkomponente und dem Anschluss zur Wasserversorgungsleitung angeordnet.A further preferred embodiment comprises a backflow preventer for preventing a backflow of water from the fitting unit and/or the heating water circuit into the water supply line, the backflow preventer being hydraulically connected, in particular, between the inlet component and the connection to the water supply line.
Der Rückflussverhinderer kann insbesondere als Rückschlagklappe ausgebildet sein. So wird verhindert, dass eventuell verunreinigtes Heizungswasser aus dem Heizungswasserkreis und/oder der Armatureneinheit in die Wasserversorgungsleitung fließt.The backflow preventer can be designed as a check valve. This prevents any contaminated heating water from flowing out of the heating water circuit and/or the fitting unit into the water supply line.
Eine weitere bevorzugte Ausgestaltung weist eine einen Innenraum definierende Hülleinheit auf, wobei die Zulaufkomponente und die Ablaufkomponente sowie optional ein Rohrleitungsabschnitt und/oder eine Regeleinheit und/oder ein Drucksensor und/oder ein Druckschalter und/oder ein Rückflussverhinderer im Innenraum angeordnet sind, und wobei die Anschlüsse zum hydraulischen Verbinden mit dem Heizungswasserkreis, der Wasserversorgungsleitung und dem Abfluss von außen zugänglich, insbesondere für eine Montage zugänglich, insbesondere an der Hülleinheit, angeordnet sind.A further preferred embodiment has a casing unit defining an interior space, wherein the inlet component and the outlet component and optionally a pipe section and/or a control unit and/or a pressure sensor and/or a pressure switch and/or a backflow preventer are arranged in the interior space, and wherein the connections for hydraulic connection to the heating water circuit, the water supply line and the drain are accessible from the outside, in particular accessible for assembly, in particular on the casing unit.
Unter einer Hülleinheit soll hier insbesondere ein Gehäuse mit einer oder mehreren Gehäusewänden verstanden werden. Die Hülleinheit stellt insbesondere einen Zugriffsschutz (Berührschutz) für die Komponenten der Armatureneinheit dar.A casing unit is understood here to mean in particular a housing with one or more housing walls. The casing unit in particular provides access protection (contact protection) for the components of the fitting unit.
Bei einer weiteren bevorzugten Ausgestaltung beginnt die Zulaufkomponente bei leerem oder ungenügend gefülltem Heizungswasserkreis mit dem Befüllen und fährt bis zum Erreichen eines vorgegebenen Betriebsdrucks fort. Wenn der Betriebsdruck erreicht ist, öffnet die Ablaufkomponente, das Betriebsdruckniveau des Heizungswasserkreises wird für eine Weile konstant, da ein Durchfluss an der Zulaufkomponente mit einem Durchfluss an der Ablaufkomponente übereinstimmt. In dieser Phase sind sowohl die Zulaufkomponente als auch die Ablaufkomponente geöffnet. Eine Dauer dieser Phase ist abhängig von einer Entlüftung des Heizungswasserkreises. Nach der Entlüftung schließt die Zulaufkomponente und stoppt das Befüllen, danach schließt die Ablaufkomponente und stoppt den Abfluss. Dadurch erreicht der Heizungswasserkreis den Betriebsdruck. Bei Heizgeräten kann dieser Wert zwischen 1,5 und 2 bar liegen.In a further preferred embodiment, the inlet component begins filling when the heating water circuit is empty or insufficiently filled and continues until a predetermined operating pressure is reached. When the operating pressure is reached, the drain component opens and the operating pressure level of the heating water circuit remains constant for a while because a flow rate at the inlet component matches a flow rate at the drain component. In this phase, both the inlet component and the drain component are open. The duration of this phase depends on the venting of the heating water circuit. After venting, the inlet component closes and stops filling, then the drain component closes and stops the drain. This means that the heating water circuit reaches the operating pressure. For heaters, this value can be between 1.5 and 2 bar.
Weitere Ausgestaltungen und Vorteile ergeben sich aus der folgenden Zeichnungsbeschreibung. In der Zeichnung sind Ausführungsbeispiele der Erfindung dargestellt. Die Zeichnung, die Beschreibung und die Ansprüche enthalten zahlreiche Merkmale in Kombination. Der Fachmann wird die Merkmale zweckmäßigerweise auch einzeln betrachten und zu sinnvollen weiteren Kombinationen zusammenfassen. Es zeigen:
- Figur 1
- einen Heizungswasserkreis und eine erste Armatureneinheit
- Figur 2
- einen Heizungswasserkreis und eine zweite Armatureneinheit
- Figur 3
- einen Heizungswasserkreis und eine dritte Armatureneinheit
- Figur 4
- einen Heizungswasserkreis und eine vierte Armatureneinheit
- Figure 1
- a heating water circuit and a first fitting unit
- Figure 2
- a heating water circuit and a second fitting unit
- Figure 3
- a heating water circuit and a third fitting unit
- Figure 4
- a heating water circuit and a fourth fitting unit
Der Heizungswasserkreis 10 umfasst einen Wärmeerzeuger 12, einen Wärmeverbraucher 14 sowie Rohrleitungen 16 zum Heizungswasser leitenden Verbinden von Wärmeerzeuger 12 und Wärmeverbraucher 14. Die erzeugte Wärme wird mittels des durch den Heizungswasserkreis 10 zirkulierenden Heizungswassers (Pfeile) vom Wärmeerzeuger 12 durch die Vorlauf-Rohrleitung 16-1 zum Wärmeverbraucher 14 geleitet. Das im Wärmeverbraucher 14 abgekühlte Heizungswasser strömt durch die Rücklauf-Rohrleitung 16-2 zurück zum Wärmeerzeuger 12. Im Betrieb nimmt das Heizungswasser verschiedene Temperaturen an, dabei dehnt es sich bei steigenden Temperaturen entsprechend seines thermischen Volumenausdehnungskoeffizienten aus oder zieht sich bei sinkenden Temperaturen zusammen. Der Heizungswasserkreis 10 ist als geschlossenes hydraulisches System ausgeführt und weist eine bestimmte Menge Heizungswasser auf. Das Heizungswasser steht unter Druck. Die im beziehungsweise am Heizungswasserkreis 10 angeordnete Armatureneinheit 100 kompensiert die Volumenzunahme bei Erwärmung und die Volumenabnahme bei Abkühlung des Heizungswassers und bewahrt so den Heizungswasserkreis 10 vor Beschädigung.The
Die Armatureneinheit 100 umfasst einen Anschluss 102 zum hydraulischen Verbinden der Armatureneinheit 100 mit dem Heizungswasserkreis 10 und ist zur Einstellung eines Wasserdrucks im Heizungswasserkreis 10 ausgebildet. Die Armatureneinheit 100 umfasst eine Zulaufkomponente 110 mit einem Anschluss 112 zum hydraulischen Verbinden mit einer Wasserversorgungsleitung 20 sowie eine Ablaufkomponente 120 mit einem Anschluss 122 zum hydraulischen Verbinden mit einem Abfluss 30. Die Zulaufkomponente 110 dient zum Befüllen (siehe Pfeil beim Anschluss 112) des Heizungswasserkreises 10 mit Wasser sowie zum Einstellen beziehungsweise Einhalten eines hydraulischen Minimaldruckes. Die Ablaufkomponente 120 dient zum Einstellen beziehungsweise Einhalten eines hydraulischen Maximaldruckes und zum Ablaufen (siehe Pfeil beim Anschluss 122) von Heizungswasser aus dem Heizungswasserkreis 10. Die Ablaufkomponente 120 umfasst ein Sicherheitsventil oder ein Überdruckventil. Ein Rohrleitungsabschnitt 130 verbindet den Anschluss 102 zum Heizungswasserkreis 10 mit der Zulaufkomponente 110 und der Ablaufkomponente 120.The
In
Die Regeleinheit 160 in den
Wenn in den
In
Die Armatureneinheiten 100 der
In
Die Armatureneinheit in
In
Claims (9)
aufweisend zumindest einen Rohrleitungsabschnitt (130) zum hydraulischen Verbinden des Anschlusses (102) zum Heizungswasserkreis (10) mit der Zulaufkomponente (110) und der Ablaufkomponente (120) sowie optional mit einem Drucksensor (140) und/oder einem Druckschalter (150).Fitting unit (100) according to claim 1,
comprising at least one pipe section (130) for hydraulically connecting the connection (102) to the heating water circuit (10) with the inlet component (110) and the outlet component (120) and optionally with a pressure sensor (140) and/or a pressure switch (150).
wobei die Zulaufkomponente (110) von einer Regeleinheit (160) in Abhängigkeit des hydraulischen Drucks im Heizungswasserkreis (10) regelbar ist, wobei die Regeleinheit (160) ausgebildet ist, ein Drucksignal von einem mit dem Heizungswasserkreis (10) hydraulisch verbundenen Drucksensor (140) zu empfangen.Fitting unit (100) according to claim 1 or 2,
wherein the inlet component (110) is controllable by a control unit (160) depending on the hydraulic pressure in the heating water circuit (10), wherein the control unit (160) is designed to receive a pressure signal from a pressure sensor (140) hydraulically connected to the heating water circuit (10).
wobei die Regeleinheit (160) und/oder der Drucksensor (140) Teil der Armatureneinheit (100) sind.Fitting unit (100) according to claim 3,
wherein the control unit (160) and/or the pressure sensor (140) are part of the fitting unit (100).
wobei die Zulaufkomponente (110) von einem mit dem Heizungswasserkreis (10) hydraulisch verbundenen Druckschalter (150) steuerbar ist.Fitting unit (100) according to claim 1 or 2,
wherein the inlet component (110) is controllable by a pressure switch (150) hydraulically connected to the heating water circuit (10).
wobei der Druckschalter (150) Teil der Armatureneinheit (100) ist.Fitting unit (100) according to claim 5,
wherein the pressure switch (150) is part of the valve unit (100).
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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TR202218718 | 2022-12-07 |
Publications (1)
Publication Number | Publication Date |
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EP4382815A1 true EP4382815A1 (en) | 2024-06-12 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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EP23211874.5A Pending EP4382815A1 (en) | 2022-12-07 | 2023-11-24 | Fitting unit |
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Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0972995A1 (en) * | 1998-07-16 | 2000-01-19 | Hans Sasserath & Co Kg | Filling armature for filling a closed hot water heating system |
GB2376290A (en) * | 2001-04-18 | 2002-12-11 | Robert Glyn Jones | A filling means for a pressurised fluid system such as a central heating system |
DE202017005347U1 (en) * | 2017-10-13 | 2017-11-13 | Veolia Water Technologies Deutschland Gmbh | Apparatus for treating heating circuit water with make-up |
DE102017117704A1 (en) * | 2017-08-04 | 2019-02-07 | Vaillant Gmbh | Apparatus and method for pressure equalization of heating systems |
US20200080729A1 (en) * | 2018-09-06 | 2020-03-12 | Honeywell International Inc. | Refilling device for a hydronic heating system and method of operating |
-
2023
- 2023-11-24 EP EP23211874.5A patent/EP4382815A1/en active Pending
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0972995A1 (en) * | 1998-07-16 | 2000-01-19 | Hans Sasserath & Co Kg | Filling armature for filling a closed hot water heating system |
GB2376290A (en) * | 2001-04-18 | 2002-12-11 | Robert Glyn Jones | A filling means for a pressurised fluid system such as a central heating system |
DE102017117704A1 (en) * | 2017-08-04 | 2019-02-07 | Vaillant Gmbh | Apparatus and method for pressure equalization of heating systems |
DE202017005347U1 (en) * | 2017-10-13 | 2017-11-13 | Veolia Water Technologies Deutschland Gmbh | Apparatus for treating heating circuit water with make-up |
US20200080729A1 (en) * | 2018-09-06 | 2020-03-12 | Honeywell International Inc. | Refilling device for a hydronic heating system and method of operating |
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