EP3529540A1 - Dispositif pour réguler la température d'eau sanitaire - Google Patents

Dispositif pour réguler la température d'eau sanitaire

Info

Publication number
EP3529540A1
EP3529540A1 EP17794650.6A EP17794650A EP3529540A1 EP 3529540 A1 EP3529540 A1 EP 3529540A1 EP 17794650 A EP17794650 A EP 17794650A EP 3529540 A1 EP3529540 A1 EP 3529540A1
Authority
EP
European Patent Office
Prior art keywords
valve
heat medium
service water
temperature
water
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Withdrawn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
EP17794650.6A
Other languages
German (de)
English (en)
Inventor
Werner LANDAUER
Johann Steiner
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.)
Herz Armaturen GesMBH
Original Assignee
Herz Armaturen GesMBH
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 Herz Armaturen GesMBH filed Critical Herz Armaturen GesMBH
Publication of EP3529540A1 publication Critical patent/EP3529540A1/fr
Withdrawn legal-status Critical Current

Links

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
    • F24D17/00—Domestic hot-water supply 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
    • 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
    • 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
    • F24D19/1051—Arrangement or mounting of control or safety devices for water heating systems for domestic hot water
    • 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
    • F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
    • F24H1/10—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D23/00—Control of temperature
    • G05D23/01—Control of temperature without auxiliary power
    • G05D23/12—Control of temperature without auxiliary power with sensing element responsive to pressure or volume changes in a confined fluid
    • G05D23/125—Control of temperature without auxiliary power with sensing element responsive to pressure or volume changes in a confined fluid the sensing element being placed outside a regulating fluid flow
    • G05D23/126—Control of temperature without auxiliary power with sensing element responsive to pressure or volume changes in a confined fluid the sensing element being placed outside a regulating fluid flow using a capillary tube
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/17—District heating
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E20/00—Combustion technologies with mitigation potential
    • Y02E20/14—Combined heat and power generation [CHP]

Definitions

  • the service water valve opens and cold process water flows into the heat exchanger.
  • the heat medium valve opens and hot heat medium flows into the heat exchanger.
  • the hot water is heated and exits from the heat exchanger to the tap out.
  • the temperature sensor of the thermostat is arranged. If the outgoing service water exceeds a certain predetermined temperature, the heat medium valve is throttled or closed and there is a volume flow reduction or a shut-off of the heat medium. As a result of the volume flow reduction or the blocking off of the heat medium, less or no heat medium passes into the heat exchanger accordingly. However, the flow rate of cold service water is not reduced, the temperature at the outlet of the heat exchanger drops accordingly.
  • tapping ie when closing the faucet, closes the hot water valve and the heat medium valve is closed by the increase in the temperature of the standing water and the temperature rising in the temperature sensor.
  • thermostatic valves are used for the heat medium in this case, however, there is no sufficient controllability for small amounts of hot water, for example, if only a faucet is opened slightly and there is a commuting of the temperature of the hot water, the user by a constantly fluctuating temperature, for example Washing hands, perceives.
  • Object of the present invention is to provide a device of the type mentioned, which is structurally simple and safe to operate, which allows independent control or interaction-free control of process water and heat medium and at the same time allows a wide range of service water extraction at constant temperature of the process water ,
  • At least one second valve arranged in parallel to the heat medium valve is provided in the heat medium line, the heat medium valve, the second valve, and the heat medium line being designed such that the flow of the heat medium to the heat exchanger is greater when the heat medium valve is open and the second valve is open when open Heat medium valve and closed second valve.
  • the flow area of the heat medium line is at least equal to the maximum flow area of the heat medium valve plus the maximum flow area of the second valve so that when the heat medium valve and the second valve are maximally open, a maximum amount of heat medium passes through the heat exchanger.
  • the second valve has a same or greater KV value or maximum flow than the heat medium valve, preferably the heat medium valve has a flow rate of 0 and 200 l / h and the second valve has a flow rate of 0 to 1300 l / h.
  • the heat medium valve and the second valve can be made the same and thus provide a simple control at low or medium quantities of hot water.
  • a small heat medium valve and a larger, second valve ie a valve with a larger Kv value, are used and thus work in the range of small amounts of hot water, the heat medium valve and removal of large amounts of hot water, the larger, second valve a larger flow release additional amounts of heat medium to the heat exchanger.
  • a pressure-controlled controller in particular a proportional valve or a PTC valve provided is that in response to the removal of hot water, the flow of the heat medium in the heat medium line opens or closes, in particular provided that the pressure-controlled controller in the heat medium line is upstream of the heat medium valve and the second valve.
  • a second thermostatic regulator is provided which, depending on the temperature of the service water, in particular measured with a temperature sensor after the outlet of the service water from the heat exchanger, the second valve adjusted
  • a further, advantageous embodiment is provided in that the second valve has a different thermal spread than the heat medium valve.
  • the second valve in a low temperature range of the service water in particular from 45 ° C to 55 ° C, is adjustable, that the heat medium valve in a medium to high temperature range of the service water, in particular from 49 ° C to 59 ° C, is adjustable, wherein the lower temperature range comprises lower temperatures than the middle and high temperature range, wherein in particular the heat medium valve has a greater thermal spread than the second valve.
  • the first temperature threshold in the range of 48 ° C to 62 ° C, preferably from 50 ° C to 60 ° C and the second temperature threshold in the range of 45 ° C to 55 ° C, preferably from 47 ° C to 50 ° C, wherein in particular the first temperature threshold is 57 ° C and the second temperature threshold is 50 ° C.
  • Fig. 1 shows a preferred embodiment of the device according to the invention.
  • the device 10 comprises a heat exchanger 1, to each of which a service water pipe 3 and a heat medium pipe 2 are connected.
  • a heat medium 18 flowing in the heat medium line 2 can emit a defined amount of heat, depending on the temperature difference with the process water 19 flowing in the service water line 3, thus increasing the temperature of the service water.
  • the heating medium 18 may come from, for example, a boiler, a thermal bath or preferably a district heating water system or district heating water.
  • the device 10 further comprises a service water valve 13 which controls the flow of the process water 19 to the heat exchanger 1 and which is integrated in a pressure-controlled regulator 5, in this embodiment a proportional valve or PTC valve.
  • the pressure-controlled controller 5 opens or closes the flow of the heat medium 18 in the heat medium line 2 depending on whether hot water 19 is removed from the service water line 3. For example, the pressure-controlled controller 5 opens the heat medium pipe 2 when service water 19 is taken out of the service water pipe 3 and closes the heat medium pipe 2 and stops the flow of the heat medium 18 in the heat medium pipe 2 when no service water 19 is taken out of the service water pipe 3.
  • Such proportional valves are known from the prior art and may have different configurations.
  • the heat medium line 2 is designed such that the flow rate of the heat medium 18 to the heat exchanger 1 is greater when the heat medium valve 12 is open and the second valve 14 is open than when the heat medium valve 12 is open and the second valve 14 is closed.
  • the diameter or cross section of the heat medium line 2 is thus adapted to the maximum flow of the heat medium valve 12 and the second valve 14 at a common fully open position, so that when the heat medium valve 12 and opened second valve 14, the maximum amount of heat medium of the heat medium 18 can pass through the heat medium line 2 and through the heat exchanger 1.
  • a temperature or a temperature threshold T1, T2 can be set at which the thermostatically controlled controller 4 then opens or closes the second valve 14 or the heat medium valve 12 based on the set controller characteristic.
  • the heated by the heat medium 18 hot water 19 runs in the service water pipe 3 from the heat exchanger 1 and via the hot water return to a tap or a shower or other consumption fittings.
  • the temperature of the service water 19 is detected by two temperature sensor 15 after leaving the heat exchanger 1 in the flow direction to the consumer.
  • hot water 18 is removed from the service water pipe 3, registers the pressure-controlled controller 5, the opening of the hot water valve 13, for example by a membrane pressure switch, and opens the heat medium line 2 whereby the heat medium 18 in the heat medium line 2 to the heat exchanger 1 can flow.
  • the amount of heat of the heat medium 18 is discharged depending on the temperature difference to the hot water 19 to the hot water 19 and thereby heated this.
  • the cooled heat medium 18 then flows out of the heat exchanger 1 and via the pressure-controlled controller 5 or the proportional valve or the PTC valve to the heat medium valve 12 and the second valve 14.
  • a PTC valve is described in EP 2 122 258 B1 in 1 to 5 and paragraphs [0023] to [0061] and is incorporated by reference into the application. Due to the flow of the heat medium 19 to the heat exchanger 1 and the associated heating of the service water 18 in the service water pipe 3 register the temperature sensor 15, a temperature increase, which is respectively transmitted to the thermostatic controller 4 of the heat medium valve 12 and the second valve 14. If the temperature of the process water 19 now exceeds a second temperature threshold T2, for example 50.degree.
  • the second valve 14 is closed stepwise as a function of the temperature of the service water 18. For example, it may be provided that the second valve 14 at the second temperature threshold T2 of 50 ° C of the Hot water 19 is completely closed. If now a first temperature threshold T1 of the service water 19, for example 57 ° C, registered by the temperature sensor 15 and exceeded by the hot water 19, the heat medium valve 12 is gradually closed depending on the further rising temperature of the hot water 19 and so the flow of the heat medium 18th reduced to the heat exchanger 1.
  • the heat medium valve 12 When removing small amounts of hot water 19 thus the heat medium valve 12 is opened only during operation or closed depending on the temperature of the hot water 19, whereas the second valve 14 is completely closed. If now a larger amount of service water 19 is removed from the service water pipe 3 after the heat exchanger 1, the heat medium valve 12 is opened until the temperature of the service water is constant or the heat medium valve is fully present or open. However, if the temperature of the service water 19 further decreases, the heat medium valve 12 can not be opened any further and the maximum amount of the heat medium 18 to the heat exchanger 1 would be limited. Due to the associated further drop in the temperature of the service water 19 after the heat exchanger 1, the second temperature threshold T2 is exceeded and the thermostatic controller 4 of the second valve 14 begins to open it again.
  • the second valve 14 is also formed equal to the first valve or the heat medium valve 12 and both have a same maximum flow or a same Kv value.
  • the second valve 14 is in preferred embodiments in a low to medium temperature range of the service water 19, in particular from 45 ° C to 55 ° C, adjustable and the heat medium valve 12 in a medium to high temperature range of the service water 19, in particular from 49 ° C to 59 ° C, adjustable.
  • the first temperature threshold T1 in the range of 48 ° C to 62 ° C, preferably from 50 ° C to 60 ° C and the second temperature threshold T2 in the range of 45 ° C to 55 ° C, preferably 47 ° C to 50 ° C, in particular, the first temperature threshold T1 is 57 ° C and the second temperature threshold T2 50 ° C.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Steam Or Hot-Water Central Heating Systems (AREA)
  • Temperature-Responsive Valves (AREA)
  • Heat-Pump Type And Storage Water Heaters (AREA)

Abstract

L'invention concerne un dispositif (10) et un procédé pour réguler la température d'eau sanitaire (19), ledit dispositif comprenant : une conduite pour fluide caloporteur (2) et une conduite d'eau sanitaire (3), la conduite pour fluide caloporteur (2) et la conduite d'eau sanitaire (3) étant raccordées à un échangeur de chaleur (1), l'eau sanitaire (19) circulant dans la conduite d'eau sanitaire (2) pouvant être chauffée au moyen d'un fluide caloporteur (1) en particulier au moyen d'eau de chauffage urbain, dans l'échangeur de chaleur (1), ledit dispositif (10) présente une soupape d'eau sanitaire (13a, 13b) commandant le débit de l'eau sanitaire (19) allant vers l'échangeur de chaleur (1) et une soupape de fluide caloporteur (12a, 12b) commandant le débit du fluide caloporteur (18) allant vers l'échangeur de chaleur (1). Un régulateur (4) à commande thermostatique permet de régler la soupape d'eau sanitaire (12) en fonction de la température de l'eau sanitaire (19), en particulier mesurée au moyen d'une sonde thermique (15) après la sortie de l'eau sanitaire (19) hors de l'échangeur de chaleur (1). Selon l'invention, au moins une deuxième soupape (14) est montée parallèlement à la soupape pour fluide caloporteur (12) dans la conduite pour fluide caloporteur (2), ladite soupape pour fluide caloporteur (12), la deuxième soupape (14) et la conduite pour fluide caloporteur (2) sont conçues de sorte que, lorsque la soupape pour fluide caloporteur (12) est ouverte et que la deuxième soupape (14) est ouverte, le débit du fluide caloporteur (8) vers l'échangeur de chaleur (1) est supérieur à ce qu'il est lorsque la soupape pour fluide caloporteur (12) est ouverte et que la deuxième soupape (14) est fermée.
EP17794650.6A 2016-10-20 2017-10-20 Dispositif pour réguler la température d'eau sanitaire Withdrawn EP3529540A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT509592016 2016-10-20
PCT/AT2017/060279 WO2018071947A1 (fr) 2016-10-20 2017-10-20 Dispositif pour réguler la température d'eau sanitaire

Publications (1)

Publication Number Publication Date
EP3529540A1 true EP3529540A1 (fr) 2019-08-28

Family

ID=60268136

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17794650.6A Withdrawn EP3529540A1 (fr) 2016-10-20 2017-10-20 Dispositif pour réguler la température d'eau sanitaire

Country Status (3)

Country Link
EP (1) EP3529540A1 (fr)
RU (1) RU2019114710A (fr)
WO (1) WO2018071947A1 (fr)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10012069A1 (de) * 2000-03-14 2001-09-27 Danfoss As Vorrichtung zum Anschließen eines Wärmetauschers einer Warmwasserentnahmeeinrichtung einer Wohnung an ein Fernwärmenetz

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3169328D1 (en) * 1980-04-10 1985-04-25 Austria Email Eht Ag Control system for controlling the heating of domestic water for a storage tank
DE29923039U1 (de) 1999-10-29 2000-04-27 Ingenioerfirmaet Redan A/S, Risskov Thermostatischer Regler
AT504761B1 (de) * 2007-01-25 2008-10-15 Herz Armaturen Gmbh Vorrichtung zur regelung der temperatur von brauchwasser

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10012069A1 (de) * 2000-03-14 2001-09-27 Danfoss As Vorrichtung zum Anschließen eines Wärmetauschers einer Warmwasserentnahmeeinrichtung einer Wohnung an ein Fernwärmenetz

Also Published As

Publication number Publication date
RU2019114710A (ru) 2020-11-20
WO2018071947A1 (fr) 2018-04-26

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