EP4382815A1 - Unité de robinetterie - Google Patents

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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.)
Withdrawn
Application number
EP23211874.5A
Other languages
German (de)
English (en)
Inventor
Omur Yigit Genckaya
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Bosch Termoteknik Isitma ve Klima Sanayi Ticaret AS
Original Assignee
Bosch Termoteknik Isitma ve Klima Sanayi Ticaret AS
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Bosch Termoteknik Isitma ve Klima Sanayi Ticaret AS filed Critical Bosch Termoteknik Isitma ve Klima Sanayi Ticaret AS
Publication of EP4382815A1 publication Critical patent/EP4382815A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D3/00—Hot-water central heating systems
    • F24D3/10—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
    • 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
    • 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
    • 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
    • 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)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fluid Mechanics (AREA)
  • Safety Valves (AREA)
EP23211874.5A 2022-12-07 2023-11-24 Unité de robinetterie Withdrawn EP4382815A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
TR202218718 2022-12-07

Publications (1)

Publication Number Publication Date
EP4382815A1 true EP4382815A1 (fr) 2024-06-12

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ID=88969687

Family Applications (1)

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EP23211874.5A Withdrawn EP4382815A1 (fr) 2022-12-07 2023-11-24 Unité de robinetterie

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EP (1) EP4382815A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0972995A1 (fr) * 1998-07-16 2000-01-19 Hans Sasserath & Co Kg Dispositif de remplissage pour remplir un système de chauffage fermé à eau chaude
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 (de) * 2017-10-13 2017-11-13 Veolia Water Technologies Deutschland Gmbh Vorrichtung zur Aufbereitung von Heizungskreislaufwasser mit Nachspeisung
DE102017117704A1 (de) * 2017-08-04 2019-02-07 Vaillant Gmbh Vorrichtung und Verfahren zum Druckausgleich von Heizungsanlagen
US20200080729A1 (en) * 2018-09-06 2020-03-12 Honeywell International Inc. Refilling device for a hydronic heating system and method of operating

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0972995A1 (fr) * 1998-07-16 2000-01-19 Hans Sasserath & Co Kg Dispositif de remplissage pour remplir un système de chauffage fermé à eau chaude
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 (de) * 2017-08-04 2019-02-07 Vaillant Gmbh Vorrichtung und Verfahren zum Druckausgleich von Heizungsanlagen
DE202017005347U1 (de) * 2017-10-13 2017-11-13 Veolia Water Technologies Deutschland Gmbh Vorrichtung zur Aufbereitung von Heizungskreislaufwasser mit Nachspeisung
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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