EP4242528B1 - Anordnung für wärmetauscher eines fernwärmesystems eines gebäudes und entsprechendes verfahren - Google Patents

Anordnung für wärmetauscher eines fernwärmesystems eines gebäudes und entsprechendes verfahren Download PDF

Info

Publication number
EP4242528B1
EP4242528B1 EP23161145.0A EP23161145A EP4242528B1 EP 4242528 B1 EP4242528 B1 EP 4242528B1 EP 23161145 A EP23161145 A EP 23161145A EP 4242528 B1 EP4242528 B1 EP 4242528B1
Authority
EP
European Patent Office
Prior art keywords
water
heat exchanger
domestic
circuit
heating
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP23161145.0A
Other languages
English (en)
French (fr)
Other versions
EP4242528C0 (de
EP4242528A1 (de
Inventor
Timo Holopainen
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.)
Insinoeoeritoimisto Mittatyoe Timo Holopainen Ky
Original Assignee
Insinoeoeritoimisto Mittatyoe Timo Holopainen Ky
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 Insinoeoeritoimisto Mittatyoe Timo Holopainen Ky filed Critical Insinoeoeritoimisto Mittatyoe Timo Holopainen Ky
Publication of EP4242528A1 publication Critical patent/EP4242528A1/de
Application granted granted Critical
Publication of EP4242528C0 publication Critical patent/EP4242528C0/de
Publication of EP4242528B1 publication Critical patent/EP4242528B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D10/00—District heating systems
    • F24D10/003—Domestic delivery stations having a heat exchanger
    • 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
    • F24D17/00—Domestic hot-water supply systems
    • F24D17/0078—Recirculation systems
    • 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
    • F24D17/00—Domestic hot-water supply systems
    • F24D17/0073—Arrangements for preventing the occurrence or proliferation of microorganisms in the water
    • 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
    • F24D19/10—Arrangement or mounting of control or safety devices
    • F24D19/1006—Arrangement or mounting of control or safety devices for water heating systems
    • F24D19/1066—Arrangement or mounting of control or safety devices for water heating systems for the combination of central heating and domestic hot water
    • 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
    • F24D19/10—Arrangement or mounting of control or safety devices
    • F24D19/1006—Arrangement or mounting of control or safety devices for water heating systems
    • F24D19/1066—Arrangement or mounting of control or safety devices for water heating systems for the combination of central heating and domestic hot water
    • F24D19/1069—Arrangement or mounting of control or safety devices for water heating systems for the combination of central heating and domestic hot water regulation in function of the temperature of the domestic hot water
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D3/00—Hot-water central heating systems
    • F24D3/08—Hot-water central heating systems in combination with systems for domestic hot-water supply
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H15/00—Control of fluid heaters
    • F24H15/10—Control of fluid heaters characterised by the purpose of the control
    • F24H15/14—Cleaning; Sterilising; Preventing contamination by bacteria or microorganisms, e.g. by replacing fluid in tanks or conduits
    • 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
    • F24H15/10—Control of fluid heaters characterised by the purpose of the control
    • F24H15/156—Reducing the quantity of energy consumed; Increasing efficiency
    • 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
    • F24H15/10—Control of fluid heaters characterised by the purpose of the control
    • F24H15/174—Supplying heated water with desired temperature or desired range of temperature
    • 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
    • F24H15/212—Temperature of the water
    • F24H15/215—Temperature of the water before heating
    • 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
    • F24H15/212—Temperature of the water
    • F24H15/219—Temperature of the water after heating
    • 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
    • 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
    • F24H15/335—Control of pumps, e.g. on-off control
    • 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
    • F24D2200/00—Heat sources or energy sources
    • F24D2200/13—Heat from a district heating network

Definitions

  • the invention relates to an arrangement for heat exchangers of a district-heating system of a building, wherein the arrangement includes
  • domestic hot water of a building is circulated continuously in a piping system, so that domestic hot water is available to a user almost immediately upon turning on a domestic water tap.
  • domestic hot water must also be constantly kept hot enough to avoid the growth of harmful microbial in the circuit water. Harmful Legionella bacteria can proliferate in warm water below 50°C.
  • the temperature of domestic hot water must be between + 55 °C ... + 65 °C throughout the circuit piping system. The stipulated upper limit was chosen based on safety considerations (burn injuries). In Sweden, the recommended temperature range for hot water is + 50 °C to + 60 °C.
  • the established rated temperature for domestic hot water in Finland is + 58 °C and the return temperature of the circuit-water piping system is + 55 °C.
  • the domestic water circulating in the pipe system cools down, so that it must be constantly heated.
  • the outgoing temperature of domestic hot water leaving a domestic-water heat exchanger is set at 58 °C, so that the returning hot circuit water remains above a temperature of 55 °C.
  • domestic water consumption is very low or non-existent.
  • heat is typically transferred from the district-heating water to the domestic water by means of a single high-power domestic-water heat exchanger.
  • the primary side of domestic-water heat exchangers is dimensioned according to a summertime inlet temperature of district-heating water of 70 °C.
  • the design flow rate for the domestic hot water is calculated using a probability formula based on the number of water points and standard flow rates.
  • a rated value for a summertime inlet temperature of district-heating water of + 65 °C is used.
  • the pursuit of lower temperatures for the outgoing water of a district-heating system may lower the summertime rated temperature to + 65 °C in Finland as well.
  • Domestic-water heat exchangers are also clearly overdesigned in terms of their power in the heating season.
  • An oversized heat exchanger and a control valve designed according to a rated water flow rate of domestic water both render control difficult.
  • the consumption of domestic hot water is characterized by large and rapid fluctuations.
  • the power demand of a heat exchanger is not linear, but varies randomly according to daily and weekly rhythms.
  • the flow rate of the circuit line is normally approximately 30% of the design flow rate.
  • the characteristic features of this invention are indicated in the attached patent claim 1.
  • a further object of the invention is to provide an improved method using heat exchangers of a district-heating system of a building, wherein the method enables a more precise control of a domestic water circuit and of a temperature of domestic water heated from domestic cold water as well as an improvement in the cooling of district-heating water.
  • the characteristic features of this invention are indicated in the attached patent claim 9.
  • the building has two separate heat exchangers connected to a network for domestic hot water.
  • One heat exchanger is a conventional high-power domestic-water exchanger, which heats domestic cold water to a desired temperature, such as 58 °C (the setpoint value can vary between 55 and 58 °C depending on the building) .
  • a second, lower-power heat exchanger is connected to the return pipe of the domestic hot water circuit between the hot circuit water pump and the actual domestic-water exchanger. This heat exchanger of the domestic water circuit raises a setpoint value of the control loop of the domestic-water heat exchanger for the domestic water returning in the circuit line.
  • the circuit piping system thus always remains at a safe temperature when domestic water is not being used and the control valves of the domestic-water exchanger are not opened.
  • the circuit-water heat exchanger is configured to heat the domestic water to a setpoint temperature 1 - 5 °C, advantageously 2 - 4 °C, higher than the domestic-water heat exchanger, and the rated inlet temperature of district-heating water for the circuit-water heat exchanger is 2 - 10 °C, advantageously 4 - 6 °C, lower than the rated inlet temperature of district-heating water for the domestic-water heat exchanger.
  • the temperature of the domestic water circuit can thus be kept precisely at a setpoint temperature, so that the domestic water circuit remains free of harmful microbes such as Legionella bacteria.
  • the heating of the domestic water is thus also energy efficient and the cooling of the district-heating water can be improved by conducting heating water of a heat exchanger of the domestic water circuit to an outlet side of heating exchangers.
  • adapting a setpoint temperature of the circuit-water heat exchanger is understood to mean that control devices are configured to control the flow rate of the district-heating water to the domestic-water heat exchanger and to the circuit-water heat exchanger by controlling an opening degree of a control valve of the domestic-water heat exchanger and an opening degree of a control valve of the circuit-water heat exchanger in such a manner that a reading of a temperature sensor for hot circuit water ideally remains 1 - 5 °C, advantageously 2 - 4 °C, higher than a reading of a temperature sensor for hot water.
  • the design of the circuit-water heat exchanger is understood to mean that the geometric parameters of the heat exchanger, such as the surface area of the heat-exchanging surface, are configured for a design flow rate so that the domestic water is heated to a setpoint temperature at a rated inlet temperature of district-heating water.
  • a design can be achieved, for example, by adding heat-exchanging plates in order to increase the surface area of the heat-exchanging surface.
  • the domestic-water heat exchanger can be designed for a rated inlet temperature of district-heating water of, for example, 70 °C
  • the circuit-water heat exchanger can be designed for a rated inlet temperature of district-heating water of, for example, 65 °C.
  • the nominal power of the circuit-water heat exchanger is significantly lower than the nominal power of the domestic-water heat exchanger. Reducing the rated inlet temperature of the district-heating water for the circuit-water heat exchanger by increasing a surface area of a heat-exchanging surface is more cost-effective than a high-power domestic-water heat exchanger.
  • the power of the heat exchanger of the domestic water circuit can be merely 5 - 20 kW.
  • the rated temperature of the secondary side of the domestic-water exchanger is normally 10 °C - 58 °, in which case the rated temperature of the circuit-water heating exchanger is 55 °C - 60 °C or 57 °C - 60 °C, depending on losses in the circuit line.
  • the arrangement according to the invention advantageously further provides a temperature monitoring of the circuit piping system and a monitoring of temperatures of the domestic hot water and a measuring of the power consumption of the domestic water circuit.
  • the arrangement according to the invention can be implemented in an existing, older heat distribution system, in which case it is not absolutely necessary to replace a high-power and expensive domestic-water heat exchanger, but rather a low-power circuit-water heat exchanger according to the invention that has been optimized with respect to its rated temperatures can be added to the heat distribution system by simultaneously making the necessary changes and additions to the control devices of the arrangement.
  • An older heat distribution system can thus be modernized so as to become more energy efficient and more functional in terms of its control. Cooling of the district-heating water can be improved at a low cost while ensuring a microbe-free domestic-water system.
  • this low-power heat exchanger can be fully exploited when the system is upgraded.
  • the circuit-water heat exchanger can be configured to produce domestic hot water with a setpoint temperature of 60-63 °C, advantageously 60 °C, and the domestic-water heat exchanger can be configured to produce domestic hot water with a setpoint temperature of 55-59 °C, advantageously 58 °C.
  • the control valve of the domestic-water heat exchanger is thus not opened when a domestic water tap is opened slightly, so that district-heating water is not needlessly conducted through the domestic-water heat exchanger.
  • a domestic water circuit can thereby be kept at a target temperature alone by means of a separate circuit-water heat exchanger. Only when the consumption of domestic hot water increases markedly and the exchanger cools down is a use of the domestic-water heat exchanger initiated to heat domestic water.
  • the domestic-water heat exchanger is either a two-pass domestic-water heat exchanger, comprising a first portion at a higher temperature for producing hot water and a second portion at a lower temperature for preheating cold water, wherein the hot circuit water is conducted between the first portion and the second portion, or an analogously arranged whole formed by two single-inlet heat exchangers and interconnecting piping systems.
  • a cooling of district-heating water can thus be improved in conjunction with a heating of domestic water.
  • the domestic-water heat exchanger is a single-inlet heat exchanger.
  • the hot circuit water is conducted from the circuit-water heat exchanger to a cold water line that leads to the single-inlet domestic-water heat exchanger.
  • the system according to the invention does not depend per se on the structure of the actual domestic-water heat exchanger.
  • a domestic-water return pipe of the circuit-water heat exchanger is connected to the domestic-water heat exchanger in order to conduct heated circuit water to the domestic-water heat exchanger.
  • the hot water of the domestic water circuit can thereby be heated with precision to a desired setpoint temperature.
  • the arrangement includes at least one heating-circuit loop and one heat exchanger of the heating circuit, and a return pipe for returning district-heating water that heats the circuit-water heat exchanger is connected to a district-heating water pipe that leads to the heat exchanger of the heating circuit.
  • a return pipe for returning district-heating water of the heat exchanger is connected directly to a return line of the district-heating system of the building in such a manner that the district-heating water returning from the heat exchanger of the heating circuit no longer passes through the domestic-water heat exchanger.
  • the district-heating water used in the building can thus be cooled to a temperature so low that it can no longer be utilized to preheat cold water.
  • the district-heating water can be conducted solely through the circuit-water heat exchanger to a heat exchanger of a heating circuit.
  • the heat of the district-heating water arriving from the circuit-water heat exchanger is thereby transferred very efficiently to the heating circuit, where the water is continuously circulated even when there is no actual demand for heating.
  • the district-heating water leaving a heat exchanger of a heating circuit is conducted to an intermediate feed of the domestic-water heat exchanger to heat cold water.
  • a control of the domestic-water heat exchanger is provided using two separate control valves connected in parallel. This allows a very precise control of the flow rate and the temperature of the district-heating water conducted to the domestic-water heat exchanger.
  • the circuit-water heat exchanger can have a nominal power of 2-20 kW, advantageously 5-15 kW, and the domestic-water heat exchanger can have a nominal power of 65-600 kW, advantageously 150-400 kW.
  • this allows heating of the domestic water to be provided by means of a low-power heat exchanger, so that a cooling of the district-heating water can be significantly improved when domestic water is not being consumed.
  • a flow rate of district-heating water flowing to the domestic-water heat exchanger is set by controlling an opening degree of a control valve of the domestic-water heat exchanger
  • domestic water is circulated in a domestic water circuit, in which outgoing hot water is heated by the domestic-water heat exchanger and hot circuit water returning from the domestic water circuit is conducted to the domestic-water heat exchanger
  • heat is additionally transferred from district-heating water to the hot circuit water by means of a separate circuit-water heat exchanger dimensioned for a selected rated inlet temperature of district-heating water
  • the flow rate of the district-heating water flowing to the circuit-water heat exchanger is set by controlling an opening degree of a control valve of the circuit-water heat exchanger
  • the flow rate of the district-heating water is controlled
  • the circuit-water heat exchanger is set to heat domestic water to a setpoint temperature 1 - 5 °C, advantageously 2 - 4 °C, higher than the domestic-water heat exchanger, and the circuit-water heat exchanger is dimensioned for a rated inlet temperature of district-heating water that is 2 - 10 °C, advantageously 4 - 6 °C, lower than the domestic-water heat exchanger.
  • This allows the temperature of the domestic water circuit to be maintained precisely at a setpoint temperature, so that the domestic water circuit remains free of harmful microbes such as Legionella bacteria. This also allows a more energy-efficient heating of the domestic water while improving the cooling of the district-heating water.
  • a setpoint temperature of a circuit-water heat exchanger can be set to 60-63 °C, advantageously 60 °C, and a setpoint temperature of a domestic-water heat exchanger can be set to 57-59 °C, advantageously 58 °C.
  • the control valve of the domestic-water heat exchanger thus does not open when a domestic water tap is opened slightly.
  • the district-heating water is conducted to the domestic-water heat exchanger via a two-part control valve comprising two separate control valves connected in parallel. This allows the flow rate of district-heating water conducted to the domestic-water heat exchanger to be controlled very precisely.
  • the district-heating water that has passed through the circuit-water heat exchanger is conducted into a district-heating water pipe that leads to a heat exchanger of a heating circuit.
  • This allows a very efficient cooling of the district-heating water used in the building via the circulation of the district-heating water through both the circuit-water heat exchanger and the heat exchanger of the heating circuit.
  • the district-heating water returning from the heat exchanger of the heating circuit is conducted directly into a return line of the district-heating system of the building. This allows the district-heating water used in the building to be cooled to a very low temperature.
  • water is circulated continuously in the heating circuit even when there is no demand for heating. This allows heat of the district-heating water returning from the circuit-water heat exchanger to be transferred efficiently to water of the heating circuit when the district-heating water returning from the circuit-water heat exchanger is conducted through the heat exchanger of the heating circuit.
  • Figure 1 illustrates an arrangement according to the invention, which is based on a conventional heat distribution centre of a district-heating system.
  • Domestic hot water is circulated in a domestic water circuit 15 of a building by means of a hot circuit water pump 24.
  • the heating of the domestic water is implemented in such a manner that the temperature of the domestic water in the domestic water circuit 15 remains continuously at a temperature of at least 55 °C.
  • control valve 12 In order to heat the domestic water of the building, district-heating water is conducted from an inlet line 17 of a district-heating DH system via a control valve 12 to a domestic-water heat exchanger 10.
  • the control valve 12 is a two-part control valve comprising two separate control valves 12.1, 12.2 connected in parallel.
  • the domestic-water heat exchanger 10 In the domestic-water heat exchanger 10, heat is transferred from the district-heating water to the domestic water.
  • the domestic-water heat exchanger 10 is a two-part or so-called two-pass heat exchanger comprising a first portion 10.1 at a higher temperature for producing hot water HW and a second portion 10.2 at a lower temperature for preheating cold water CW. Cold water CW is thus first conducted to the second portion 10.2 of the domestic-water heat exchanger 10. Hot circuit water is conducted to the domestic-water heat exchanger 10 between the first portion 10.1 and the second portion 10.2.
  • the hot circuit water HWC and preheated cold water CW are thus conducted for heating to the first portion 10.1 of the domestic-water heat exchanger 10, wherein the domestic water returning from the first portion 10.1 is hot water HW.
  • the hot circuit water HWC returning from the domestic water circuit 15 is mainly heated by means of a separate circuit-water heat exchanger 20.
  • the circuit-water heat exchanger 20 is a low-power heat exchanger (e.g. 6 kW) compared to the actual domestic-water heat exchanger 10 (e.g. 200 kW) .
  • Hot district-heating water is conducted to the circuit-water heat exchanger 20 from the inlet line 17 of the district-heating DH system of the building via a control valve 22.
  • the circuit-water heat exchanger 20 transfers heat from the district-heating water to the hot circuit water HWC, which is conducted after the circuit-water heat exchanger 20 to the actual domestic-water heat exchanger 10 in a return pipe 54.
  • the arrangement includes a temperature sensor 41 for hot circuit water HWC and a temperature sensor 42 for hot water HW.
  • the arrangement also includes control devices which read readings of the temperature sensor 41 for hot circuit water HWC and of the temperature sensor 42 for hot water HW and control the opening degrees of the control valves 22, 12.1 and 12.2 based on the readings and setpoint values. For example, by opening the control valve 22, more hot district-heating water can be conducted to the circuit-water heat exchanger 20, whereby more heat is transferred to the hot circuit water HWC.
  • the temperatures of the circuit water and heating circuits 30, 40 are measured continuously by means of temperature sensors 41, 42, 43, 44, 45, 46, 47, and the power consumption is measured continuously by means of energy meters 61, 62, 63. This makes it possible to monitor the temperatures of the circuit piping system for circulating domestic hot water and the power consumption of operating the circuit.
  • the circuit-water heat exchanger 20 is configured to heat domestic water to a higher setpoint temperature than the actual domestic-water heat exchanger 10.
  • the setpoint temperature of the low-power circuit-water heat exchanger 20 is 60 °C and the setpoint temperature of the overdesigned domestic-water heat exchanger 10 is 58 °C.
  • the reading of the temperature sensor 41 for hot circuit water HWC is ideally kept at 60 °C and the reading of the temperature sensor 42 for hot water HW is ideally kept at 58 °C.
  • the control valves 12.1, 12.2 of the domestic-water heat exchanger 10 thus do not open when a domestic-water tap is opened slightly.
  • the rated inlet temperature of district-heating water for the circuit-water heat exchanger 20 is also 65 °C, which is lower than the rated inlet temperature of district-heating water for the domestic-water heat exchanger 10, which is 70 °C in this embodiment.
  • the arrangement illustrated in Figure 1 further includes two heating circuits 30, 40. These can be intended to heat, for example, a floor-heating network and a ventilation.
  • water is circulated by a pump 35 and heat is transferred from district-heating water to the heating circuit 30 by means of a heat exchanger 31 of the heating circuit, the district-heating water being conducted into the heat exchanger 31 from the inlet line 17 of the district-heating DH system of the building via a control valve 33.
  • the heating circuit 40 water is circulated by a pump 36 and heat is transferred from district-heating water to the heating circuit 40 by means of a heat exchanger 32 of the heating circuit, the district-heating water being conducted into the heat exchanger 32 from the inlet line 17 of the district-heating DH system of the building via a control valve 34.
  • a return pipe 51 for returning the district-heating water of the circuit-water heat exchanger 20 is connected to a district-heating water pipe 52 that leads to the heat exchanger 31 of the heating circuit 30.
  • a return pipe 51 for returning the district-heating water from the circuit-water heat exchanger 20 is also connected to a district-heating water pipe 53 that leads to the heat exchanger 32 of the heating circuit 40.
  • a so-called intermediate feed connection is not used, but rather the district-heating water returning from the heat exchangers 31, 32 of the heating circuits 30, 40 is conducted to a return line 18 of the district-heating DH system of the building.
  • a return pipe 55 for returning district-heating water of the heat exchanger 31 of the heating circuit 30 is connected directly to the return line 18 of the district-heating DH system of the building.
  • a return pipe 56 for returning district-heating water of the heat exchanger 32 of the heating circuit 40 is connected directly to the return line 18 of the district-heating DH system of the building.
  • An intermediate feed connection of the domestic-water heat exchanger is used when the return temperature of the district-heating system in a heating dimensioning situation can be utilized in the domestic-water exchanger to improve cooling.
  • an intermediate feed connection can be used in the following cases:

Landscapes

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

Claims (14)

  1. Anordnung für Wärmetauscher eines Fernwärmesystems eines Gebäudes, wobei die Anordnung Folgendes einschließt
    • einen Haushaltswasser-Wärmetauscher (10), durch den Fernwärmewasser geleitet wird und der so konfiguriert ist, dass er Wärme an das Haushaltswasser abgibt, und der für eine ausgewählte Nenneingangstemperatur des Fernwärmewassers dimensioniert ist,
    • einen Steuerventil (12) des Haushaltswasser-Wärmetauschers (10) zur Steuerung des Durchflusses des Fernwärmewassers zum Haushaltswasser-Wärmetauscher (10),
    • einen Haushaltswasser-Kreislauf (15), wobei in den Kreislauf (15) eintretendes Warmwasser (HW) mittels des Haushaltswasser-Wärmetauschers (10) erwärmt wird und aus dem Kreislauf (15) zurückkehrendes heißes Kreislaufwasser (HWC) zum Haushaltswasser-Wärmetauscher (10) geleitet wird,
    • einen separaten Wärmetauscher (20), durch den Fernwärmewasser geleitet wird und der so konfiguriert ist, dass er Wärme zur Erwärmung des heißen Kreislaufwassers (HWC) abgibt, und der für eine ausgewählte Nenneingangstemperatur des Fernwärmewassers dimensioniert ist,
    • einen Steuerventil (22) des Kreislaufwasser-Wärmetauschers (20) zur Steuerung des Durchflusses des dem Kreislaufwasser-Wärmetauscher (20) zugeführten Fernwärmewassers,
    • einen Temperatursensor (41) für das heiße Kreislaufwasser (HWC) und einen Temperatursensor (42) für das Warmwasser (HW),
    • Steuervorrichtungen zum Steuern des Durchflusses von Fernwärmewasser in einem ausgewählten Teil der Anordnung gemäß einem voreingestellten Programm, wobei die Steuervorrichtungen mindestens so konfiguriert sind, dass sie einen Öffnungsgrad des Steuerventils (12) des Haushaltswasser-Wärmetauschers (10) und einen Öffnungsgrad des Steuerventils (22) des Kreislaufwasser-Wärmetauschers (20) auf der Grundlage von Ablesungen des Temperatursensors (41) für heißes Kreislaufwasser (HWC) und des Temperatursensors (42) für Warmwasser (HW) steuern,
    dadurch gekennzeichnet, dass
    • der Kreislaufwasser-Wärmetauscher (20) eine geringere Leistung hat als der Haushaltswasser-Wärmetauscher (10),
    • die Steuervorrichtungen so konfiguriert sind, dass sie das Haushaltswasser im Kreislaufwasser-Wärmetauscher (20) auf eine um 1-5 °C, vorteilhafterweise 2 -4 °C, höhere Solltemperatur als der Haushaltswasser-Wärmetauscher (10) erwärmen, wodurch verhindert wird, dass das Steuerventil (12) des Haushaltswasser-Wärmetauschers (10) geöffnet wird, wenn das Haushaltswasser nicht verwendet wird, und
    • die geometrischen Parameter des Wärmetauschers (20) so ausgelegt sind, dass die Nenneingangstemperatur des Fernwärmewassers für den Kreislaufwasser-Wärmetauscher (20) 2-10 °C, vorteilhafterweise 4-6 °C, niedriger ist als die Nenneingangstemperatur des Fernwärmewassers für den Haushaltswasser-Wärmetauscher (10).
  2. Anordnung nach Anspruch 1, dadurch gekennzeichnet, dass der Kreislaufwasser-Wärmetauscher (20) zur Erzeugung von Haushaltswasser mit einer Solltemperatur von 60-63 °C, vorteilhafterweise 60 °C, und der Haushaltswasser-Wärmetauscher (10) zur Erzeugung von Haushaltswasser mit einer Solltemperatur von 55-59 °C, vorteilhafterweise 58 °C, ausgelegt ist.
  3. Anordnung nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass der Haushaltswasser-Wärmetauscher (10)
    - entweder einen Haushaltswasser-Wärmetauscher mit zwei Durchgängen ist, umfassend einen ersten Abschnitt (10.1) mit einer höheren Temperatur zur Erzeugung von Warmwasser (HW) und einen zweiten Abschnitt (10.2) mit einer niedrigeren Temperatur zur Vorwärmung von Kaltwasser (CW), wobei das heiße Kreislaufwasser (HWC) zwischen dem ersten Abschnitt (10.1) und dem zweiten Abschnitt (10.2) geleitet wird,
    - oder ein analog angeordnetes Ganzes ist, das aus zwei Wärmetauschern mit einem Eingang und verbindenden Rohrsystemen besteht.
  4. Anordnung nach einem der Ansprüche 1-3, dadurch gekennzeichnet, dass eine Haushaltswasser-Rücklaufleitung (54) des Kreislaufwasser-Wärmetauschers (20) mit dem Haushaltswasser-Wärmetauscher (10) verbunden ist, um erwärmtes Kreislaufwasser zum Haushaltswasser-Wärmetauscher (10) zu führen.
  5. Anordnung nach einem der Ansprüche 1-4, dadurch gekennzeichnet, dass die Anordnung mindestens einen Wärmekreislauf (30) und einen Wärmetauscher (31) des Wärmekreislaufs (30) einschließt und eine Rücklaufleitung (51) für die Rückführung von Fernwärmewasser, das den Kreislaufwasser-Wärmetauscher (20) erwärmt, mit einer Fernwärmewasserleitung (52) verbunden ist, die zum Wärmetauscher (31) des Wärmekreislaufs (30) führt.
  6. Anordnung nach Anspruch 5, dadurch gekennzeichnet, dass eine Rücklaufleitung (55) zur Rückführung von Fernwärmewasser des Wärmetauschers (31) des Wärmekreislaufs (30) direkt an eine Rücklaufleitung (18) des Fernwärmesystems (DH) des Gebäudes angeschlossen ist, sodass das aus dem Wärmetauscher (31) des Wärmekreislaufs (30) zurückfließende Fernwärmewasser nicht mehr durch den Haushaltswasser-Wärmetauscher (10) läuft.
  7. Anordnung nach einem der Ansprüche 1-6, dadurch gekennzeichnet, dass das Steuerventil (12) des Haushaltswasser-Wärmetauschers (10) ein zweiteiliges Steuerventil ist, umfassend zwei separate, parallel geschaltete Steuerventile (12.1, 12.2).
  8. Anordnung nach einem der Ansprüche 1-7, dadurch gekennzeichnet, dass der Kreislaufwasser-Wärmetauscher (20) eine Nennleistung von 2-20 kW, vorteilhafterweise 5-15 kW, und der Haushaltswasser-Wärmetauscher (10) eine Nennleistung von 65-600 kW, vorteilhafterweise 150-400 kW, aufweist.
  9. Verfahren für Wärmetauscher eines Fernwärmesystems eines Gebäudes, bei diesem Verfahren
    • Wärme vom Fernwärmewasser auf das Haushaltswasser mittels eines Haushaltswasser-Wärmetauschers (10) übertragen wird, der für eine ausgewählte Nenneingangstemperatur des Fernwärmewassers ausgelegt ist,
    • eine Durchflussmenge des zum Haushaltswasser-Wärmetauscher (10) fließenden Fernwärmewassers durch Steuerung eines Öffnungsgrades eines Steuerventils (12) des Haushaltswasser-Wärmetauschers (10) eingestellt wird,
    • Haushaltswasser in einem Haushaltswasser-Kreislauf (15) zirkuliert, in dem ausgehendes Warmwasser (HW) durch den Haushaltswasser-Wärmetauscher (10) erwärmt wird und aus dem Haushaltswasser-Kreislauf (15) zurückfließendes heißes Kreislaufwasser (HWC) dem Haushaltswasser-Wärmetauscher (10) zugeführt wird,
    • Wärme zusätzlich vom Fernwärmewasser auf den heißen Kreislaufwasser (HWC) mittels eines separaten Wärmetauschers (20) übertragen wird, der für eine ausgewählte Nenneingangstemperatur des Fernwärmewassers ausgelegt ist,
    • die Durchflussmenge des Fernwärmewassers, das zum Wärmetauscher (20) fließt, durch die Steuerung eines Öffnungsgrades eines Steuerventils (22) des Wärmetauschers (20) eingestellt wird,
    • die Temperatur des heißen Kreislaufwassers (HWC) mit einem Temperatursensor (41) und die Temperatur des Warmwassers (HW) mit einem Temperatursensor (42) gemessen wird,
    • die Durchflussmenge des Fernwärmewassers in einem ausgewählten Verfahrensschritt mittels Steuervorrichtungen nach einem vorgegebenen Kriterium gesteuert wird, wobei die Steuervorrichtungen mindestens einen Öffnungsgrad des Steuerventils (12) des Haushaltswasser-Wärmetauschers (10) und des Steuerventils (22) des Kreislaufwasser-Wärmetauschers (20) basierend auf Messwerten des Temperatursensors (41) für heißes Kreislaufwasser (HWC) und des Temperatursensors (42) für Warmwasser (HW) steuern,
    dadurch gekennzeichnet, dass
    • der Kreislaufwasser-Wärmetauscher (20) eine geringere Leistung hat als der Haushaltswasser-Wärmetauscher (10),
    • die Steuervorrichtungen so eingestellt sind, dass sie das Haushaltswasser im Kreislaufwasser-Wärmetauscher (20) auf eine um 1-5 °C, vorteilhafterweise 2-4 °C, höhere Solltemperatur als der Haushaltswasser-Wärmetauscher (10) erwärmen, verhindern, dass das Steuerventil (12) des Haushaltswasser-Wärmetauschers (10) geöffnet wird, wenn kein Haushaltswasser verwendet wird, und
    • der Kreislaufwasser-Wärmetauscher (20) für eine Nenneingangstemperatur des Fernwärmewassers ausgelegt ist, die 2-10 °C, vorteilhafterweise 4-6 °C, niedriger ist als die des Haushaltswasser-Wärmetauschers (10).
  10. Verfahren nach Anspruch 9, dadurch gekennzeichnet, dass eine Solltemperatur des Kreislaufwasser-Wärmetauschers (20) auf 60-63 °C, vorteilhaft 60 °C, und eine Solltemperatur des Haushaltswasser-Wärmetauschers (10) auf 55-59 °C, vorteilhaft 58 °C, eingestellt wird.
  11. Verfahren nach Anspruch 9 oder 10, dadurch gekennzeichnet, dass das Fernwärmewasser über ein zweiteiliges Steuerventil (12) zum Haushaltswasser-Wärmetauscher (10) geleitet wird, umfassend zwei separate, parallel geschaltete Steuerventile (12.1, 12.2).
  12. Verfahren nach einem der Ansprüche 9-11, dadurch gekennzeichnet, dass das Fernwärmewasser, das den Kreislaufwasser-Wärmetauscher (20) durchlaufen hat, in eine Fernwärmewasserleitung (52) geleitet wird, die zu einem Wärmetauscher (31) eines Wärmekreislaufs (30) führt.
  13. Verfahren nach Anspruch 12, dadurch gekennzeichnet, dass das aus dem Wärmetauscher (31) des Wärmekreislaufs (30) zurückfließende Fernwärmewasser direkt in eine Rücklaufleitung (18) des Fernwärmesystems (DH) des Gebäudes geleitet wird.
  14. Verfahren nach einem der Ansprüche 9-13, dadurch gekennzeichnet, dass im Wärmekreislauf (30) kontinuierlich Wasser zirkuliert wird, auch wenn kein Wärmebedarf besteht.
EP23161145.0A 2022-03-11 2023-03-10 Anordnung für wärmetauscher eines fernwärmesystems eines gebäudes und entsprechendes verfahren Active EP4242528B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FI20225218A FI130379B (fi) 2022-03-11 2022-03-11 Järjestely kiinteistön kaukolämmön lämmönsiirtimien yhteydessä ja vastaava menetelmä

Publications (3)

Publication Number Publication Date
EP4242528A1 EP4242528A1 (de) 2023-09-13
EP4242528C0 EP4242528C0 (de) 2024-03-06
EP4242528B1 true EP4242528B1 (de) 2024-03-06

Family

ID=86328820

Family Applications (1)

Application Number Title Priority Date Filing Date
EP23161145.0A Active EP4242528B1 (de) 2022-03-11 2023-03-10 Anordnung für wärmetauscher eines fernwärmesystems eines gebäudes und entsprechendes verfahren

Country Status (2)

Country Link
EP (1) EP4242528B1 (de)
FI (1) FI130379B (de)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE20316161U1 (de) * 2003-10-22 2003-12-24 Weigerstorfer Gmbh Fernheizungssystem mit häuslicher Warmwasserbereitung
DE102008038617B4 (de) * 2008-08-12 2013-10-10 Frank Triesch Verfahren und Vorrichtung zur Wärmenutzung
DE102010044535B4 (de) * 2010-09-07 2014-07-31 Richter Pumpentechnik Gmbh Warmwasserbereitungsanlage und Verfahren zum Betreiben einer Warmwasserbereitungsanlage
DE102014116368A1 (de) * 2014-11-10 2016-05-12 Helmut Bälz GmbH Wärmeübertragungssystem für Gebäude
FI129363B (fi) * 2020-01-29 2021-12-31 Hoegforsgst Oy Menetelmä ja järjestelmä kaukolämmön jäähtymän parantamiseksi

Also Published As

Publication number Publication date
EP4242528C0 (de) 2024-03-06
EP4242528A1 (de) 2023-09-13
FI130379B (fi) 2023-08-04
FI20225218A1 (fi) 2023-08-04

Similar Documents

Publication Publication Date Title
US8985063B2 (en) Hot-water supply system
US8141623B2 (en) Automatic switching two pipe hydronic system
EP2159495B1 (de) Heizsystem
AU2009229699B2 (en) Boiler suppliable heating-water and hot-water simultaneously
US7945146B2 (en) Tankless hot water heater with power modulation
CA2455582A1 (en) Passive back-flushing thermal energy system
GB2527530A (en) Fluid-heating apparatus
EP1564616A3 (de) System zum unabhängigen Regeln der Temperaturen in verschiedenen Räumen und der Temperaturen eines oder mehrerer Warmwasser-Versorgungssysteme
EP4242528B1 (de) Anordnung für wärmetauscher eines fernwärmesystems eines gebäudes und entsprechendes verfahren
CN102927622B (zh) 一种供热调控装置
GB2568947A (en) A combi-boiler device
GB2533901A (en) A domestic water and space heating system
KR101706146B1 (ko) 지역 및 중앙 난방에 적용되는 난방 및 온수 공급 장치 및 그 제어 방법
EP2722596B1 (de) Heizinstallation und zugehöriges Verfahren
EP1003089B1 (de) Bedarfsgerechte Wärmeübertragerregelung
US4966127A (en) Method and apparatus for saving energy in direct fired boilers
EP2077423A1 (de) Regulierung der Flusstemperatur einer Flüssigkeit in einem Heizkreislauf
Gudmundsson et al. Building solutions for low temperature heat supply
CN113566413A (zh) 燃气热水器
FI110027B (fi) Laitteisto lämpimän käyttöveden lämmittämiseksi
JP4760282B2 (ja) 給湯装置
CN219607198U (zh) 一种采暖设备
SU928135A1 (ru) Закрыта вод на система централизованного теплоснабжени
JP4867274B2 (ja) 給湯装置
BG104990A (bg) Инсталация за нагряване на непитейна вода

Legal Events

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

Free format text: ORIGINAL CODE: 0009012

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

Free format text: STATUS: THE APPLICATION HAS BEEN PUBLISHED

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

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

AK Designated contracting states

Kind code of ref document: A1

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

17P Request for examination filed

Effective date: 20230824

RBV Designated contracting states (corrected)

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

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

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

Free format text: STATUS: GRANT OF PATENT IS INTENDED

RIC1 Information provided on ipc code assigned before grant

Ipc: F24H 15/335 20220101ALI20231004BHEP

Ipc: F24H 15/305 20220101ALI20231004BHEP

Ipc: F24H 15/219 20220101ALI20231004BHEP

Ipc: F24H 15/215 20220101ALI20231004BHEP

Ipc: F24H 15/174 20220101ALI20231004BHEP

Ipc: F24H 15/156 20220101ALI20231004BHEP

Ipc: F24H 15/14 20220101ALI20231004BHEP

Ipc: F24D 19/10 20060101ALI20231004BHEP

Ipc: F24D 17/00 20220101ALI20231004BHEP

Ipc: F24D 10/00 20220101AFI20231004BHEP

INTG Intention to grant announced

Effective date: 20231018

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

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

Free format text: STATUS: THE PATENT HAS BEEN GRANTED

AK Designated contracting states

Kind code of ref document: B1

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

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 602023000013

Country of ref document: DE

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

U01 Request for unitary effect filed

Effective date: 20240319

U07 Unitary effect registered

Designated state(s): AT BE BG DE DK EE FI FR IT LT LU LV MT NL PT SE SI

Effective date: 20240327

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

Ref country code: GR

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

Effective date: 20240607

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

Ref country code: HR

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

Effective date: 20240306

Ref country code: RS

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

Effective date: 20240606

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

Ref country code: ES

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

Effective date: 20240306

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

Ref country code: RS

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

Effective date: 20240606

Ref country code: HR

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

Effective date: 20240306

Ref country code: GR

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

Effective date: 20240607

Ref country code: ES

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

Effective date: 20240306

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

Ref country code: IS

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

Effective date: 20240706

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

Ref country code: SM

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

Effective date: 20240306

U21 Renewal fee for the european patent with unitary effect paid with additional fee

Year of fee payment: 2

Effective date: 20240910

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

Ref country code: CZ

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

Effective date: 20240306

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

Ref country code: PL

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

Effective date: 20240306

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

Ref country code: SK

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

Effective date: 20240306

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

Ref country code: SM

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

Effective date: 20240306

Ref country code: SK

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

Effective date: 20240306

Ref country code: RO

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

Effective date: 20240306

Ref country code: PL

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

Effective date: 20240306

Ref country code: IS

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

Effective date: 20240706

Ref country code: CZ

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

Effective date: 20240306

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 602023000013

Country of ref document: DE

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

Ref country code: MC

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

Effective date: 20240306

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

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

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

U1N Appointed representative for the unitary patent procedure changed after the registration of the unitary effect

Representative=s name: WILENIUS, JAMI JUHANI; FI

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

Ref country code: MC

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

Effective date: 20240306

26N No opposition filed

Effective date: 20241209

U20 Renewal fee for the european patent with unitary effect paid

Year of fee payment: 3

Effective date: 20250321

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

Ref country code: TR

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

Effective date: 20240306

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

Ref country code: IE

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

Effective date: 20250310

U20 Renewal fee for the european patent with unitary effect paid

Year of fee payment: 4

Effective date: 20260305

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

Ref country code: NO

Payment date: 20260323

Year of fee payment: 4