EP1582824B1 - Device for flow management in combined heating units for sanitary water and house rooms and boiler unit for combined heating of sanitary water and house rooms - Google Patents

Device for flow management in combined heating units for sanitary water and house rooms and boiler unit for combined heating of sanitary water and house rooms Download PDF

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Publication number
EP1582824B1
EP1582824B1 EP05003629A EP05003629A EP1582824B1 EP 1582824 B1 EP1582824 B1 EP 1582824B1 EP 05003629 A EP05003629 A EP 05003629A EP 05003629 A EP05003629 A EP 05003629A EP 1582824 B1 EP1582824 B1 EP 1582824B1
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EP
European Patent Office
Prior art keywords
accordance
sanitary water
heat
flow
branch
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
EP05003629A
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German (de)
English (en)
French (fr)
Other versions
EP1582824A3 (en
EP1582824A2 (en
Inventor
Giovanni Luca Gallus
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.)
GV STAMPERIE SpA
Original Assignee
GV STAMPERIE SpA
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Application filed by GV STAMPERIE SpA filed Critical GV STAMPERIE SpA
Priority to SI200530446T priority Critical patent/SI1582824T1/sl
Priority to PL05003629T priority patent/PL1582824T3/pl
Publication of EP1582824A2 publication Critical patent/EP1582824A2/en
Publication of EP1582824A3 publication Critical patent/EP1582824A3/en
Application granted granted Critical
Publication of EP1582824B1 publication Critical patent/EP1582824B1/en
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H9/00—Details
    • F24H9/14—Arrangements for connecting different sections, e.g. in water heatersĀ 
    • 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
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H9/00—Details
    • F24H9/14—Arrangements for connecting different sections, e.g. in water heatersĀ 
    • F24H9/142—Connecting hydraulic components
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H9/00—Details
    • F24H9/14—Arrangements for connecting different sections, e.g. in water heatersĀ 
    • F24H9/148—Arrangements of boiler components on a frame or within a casing to build the fluid heater, e.g. boiler
    • 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
    • F24H1/48—Water heaters for central heating incorporating heaters for domestic water
    • F24H1/52—Water heaters for central heating incorporating heaters for domestic water incorporating heat exchangers for domestic water

Definitions

  • the present invention relates to a device for the management of heating flows in combined heating units for sanitary water and house rooms allowing optimising utilization of the thermal power from a boiler. More generally, the present invention relates to a boiler unit for combined heating of sanitary water and house rooms.
  • Realizing heating systems that utilize thermal power from a combustion boiler both to heat house rooms of a dwelling and for heating sanitary water to be used for example for showers, baths or other is known in the prior art.
  • Such heating systems include opposite the boiler a primary heat exchanger traversed by the heat-transferring fluid (for example water) designed to run under the thrust of a purposeful recirculation pump in radiators arranged in the rooms to be heated.
  • a flow switching valve capable of feeding the hot fluid to a secondary heat exchanger as an alternative to the radiators.
  • the secondary heat exchanger allows heating the sanitary water to be sent to the sanitary fixtures of the dwelling by taking the heat directly from the heat-transferring fluid of the heating system and thus utilizing the thermal power of the boiler.
  • the three-way valve in the prior art systems is not able to divide the hot fluid flows by distributing the heating flows between the radiator circuit and that of the secondary heat exchanger.
  • the valve is controlled with a binary logic and can have only two extreme configurations, to wit, one for supplying the radiators (when sanitary water is not required by the domestic users) and one for supply of the secondary heat exchanger (when sanitary water is required).
  • the 'switching' command of the valve is generated by appropriate control means when a purposeful minimum flow sensor fitted on the sanitary water pipe perceives a certain requirement for heated sanitary water, for example 2.5 l/m.
  • This type of heating system allows on the one hand use of the thermal power of the boiler with a dual purpose (domestic environment heating and sanitary water heating) but on the other often results in considerable waste of power. Indeed, when there is a minimal requirement for sanitary water, heating of the radiators in the home is stopped while using the entire and excessive available thermal power for heating a small quantity of water.
  • GB-A-1529680 discloses a heating system wherein the three-way valve is operated responsive to measurement of the sanitary water temperature made by a temperature sensor arranged in the sanitary water circuit.
  • the general purpose of the present invention is to remedy the above-mentioned shortcomings by making available a combined heating device for house rooms and sanitary water allowing optimisation of the utilization of the available thermal power in every heating system operating situation.
  • FIG 1 shows a heating system 11 realized in accordance with the present invention.
  • Said heating system includes a primary heat exchanger 14 suited to heating a heat-transferring fluid and a heating system 17 for house rooms traversed by said heat-transferring fluid.
  • the heating system 17 can include for example a series of prior art radiators.
  • the heat-transferring fluid can advantageously be water. It is noted that by 'house rooms', dwelling rooms are not necessarily intended but even rooms used as offices.
  • the primary heat exchanger 14 and the heating system 17 are placed in communication through a water delivery branch 19 and a water return branch 18 of the heat-transferring fluid.
  • the heat exchanger 14 uses the thermal power generated by a heat source 13 (for example a boiler) to heat the heat-transferring fluid.
  • a heat source 13 for example a boiler
  • the heat exchanger 14 is a water & fumes exchanger designed for transferring the heat from the hot fumes of the boiler to the water flowing in the water branches 18, 19.
  • a device 12 for management of the heating flows of the boiler unit there is inserted a device 12 for management of the heating flows of the boiler unit.
  • Said device 12 is also placed between an external water network 15 and sanitary water users 16 placed in communication through a sanitary water branch 28.
  • the device 12 includes a 3-way valve 22 fitted in the delivery branch 19 in accordance with that shown in the diagram of principle of FIG 1 .
  • Said valve includes an inlet fed with the hot heat-transferring fluid transferred by the section 19a of the delivery branch 19 that connects the primary exchanger 14 to the device 12.
  • the valve 22 has two outlets one of which is connected to the section of the delivery branch 19b that connects the device 12 to the heating system 17 while the other feeds a water diversion branch 27 included in the device 12.
  • Said diversion branch 27 then terminates as an affluent in the return branch 18 as shown.
  • the 3-way valve 22 is a valve operated by the motor 23 and is capable of distributing in various proportions the flow of heat-transferring fluid between the diversion branch 27 and the delivery branch 19b depending on the configuration that it takes on under the motor handling action.
  • the device 12 also includes an intermediate section 28c of the sanitary water branch 28 included between an initial section 28a connecting the water network 15 to the device 12 and a final section 28b connecting the device 12 to the final users of the sanitary water 16.
  • the section of the sanitary water branch 28c realizes together with the diversion branch 27 a secondary heat exchanger 21.
  • the sanitary water is heated in the exchanger 21.
  • the device 12 in accordance with the present invention also includes a sanitary water flow measurement device 24.
  • Said measurement device 24 is arranged on the sanitary water branch immediately upstream of the heat exchanger 21 and is connected to the control means 26 to supply them with a flow signal.
  • the control means 26 are also connected to the motor 23 designed to drive the 3-way valve 22.
  • the valve 22 is regulated in the choking of the hot heat-transferring fluid flows allowing for the sanitary water flow figure required by the user. For example it could be regulated to have a flow in the diversion branch 27 virtually proportionate to the water flow in the sanitary water branch 28. In this manner an always adequate heating of the water to the sanitary users would be assured without wasting the thermal power generated in the boiler or interrupting the heating of the radiators of the heating system 17.
  • the device also includes a recirculation pump 20 fitted on the heat-transferring fluid return branch 18.
  • the pump 20 is arranged advantageously opposite a section of the return branch 18c inside the device 12 and included between a section of the return branch 18b connecting the heating system 17 to the device 12 and a section of the return branch 18a connecting the device 12 to the primary heat exchanger 14.
  • the pump 20 is in series with the primary exchanger 14 and is preceded upstream by a minimum flow sensor 25 also included in the device 12.
  • the minimum flow sensor 25 is connected to the control means 26.
  • the control means 26 When the sensor 25 perceives a certain flow (for example from 10 to 20 l/m) the burners of the boiler 13 function correctly.
  • the control means command stoppage of heat generation to avoid the exchanger 14 overheating excessively and being damaged.
  • the device 12 also includes a by-pass duct 30 arranged in parallel with the diversion branch 27.
  • Said by-pass branch 30 has the function of ensuring minimum flow of the heat-transferring fluid to allow keeping the boiler in operation even when the flow in the radiators 17 is relatively low. This situation can occur for example when the choking caused by the radiator holders imposes a substantial reduction of the flow of the heat transferring fluid in the heating system.
  • FIG 2 shows the device 12 in accordance with the present invention.
  • said device 12 is made in a single block in which all the components are assembled. It includes two connections 119a and 119b to be connected respectively to the heat-transferring fluid delivery branches 19a and 19b.
  • the valve 22 is advantageously arranged between the two above-mentioned connections and is connected to the driving motor 23.
  • the device 12 also includes two connections 118a and 118b to be connected respectively to the return branches 18a and 18b.
  • the recirculation pump 20 is arranged between the two connections 118a and 118b.
  • the device also includes two connections for the sanitary water, to wit, one 128a for the sanitary water inlet and one 128b for its outlet.
  • the device 12 Opposite the inlet connection 128a there is the sanitary water minimum flow sensor 24.
  • the device 12 includes the secondary heat exchanger 21 with a shell having a shape nearly assimilable to that of a parallelepiped. Said secondary heat exchanger 21 is prior art and therefore not further described.
  • the by-pass duct 30 In parallel with the exchanger 21 there is the by-pass duct 30.
  • FIG 3 shows a side cross section of the body of the valve 22.
  • Said valve 22 includes an active body 31 which is moved horizontally by a shaft 32 connected to the motor 23.
  • the body 31 denies passage of the heat-transferring fluid from the inlet 22a (supplied from the delivery branch 19a) to the outlet 22b (connected to the delivery branch 19b) of the valve 22.
  • the body 31 prevents passage of the fluid through the outlet 35 that feeds the diversion branch 27 and the heat exchanger 21.
  • the body 31 allows choking of the streams while distributing the heat-transferring fluid in such a manner as to optimise utilization of the boiler thermal power.
  • non-return valve 33 arranged at the inlet to the by-pass tube 33 in accordance with known techniques in the field of heating systems.
  • FIG 4 shows a perspective view of the device 12 with some parts removed.
  • the sanitary water flow measurement device 24 includes a turbine 41 arranged on the sanitary water branch 28 near the sanitary water inlet connection 128a.
  • the turbine 41 rotates at a speed dependent on the water flow rate.
  • It is coupled to a sensor 40 capable of sending a flow measurement signal to the control means 26 to appropriately command driving of the 3-way valve 22.
  • a device (and more generally a boiler unit) has been realized for combined heating of house rooms and sanitary water that allows optimisation of the thermal power supplied by a boiler while sending to the secondary heat exchanger of the sanitary water only the amount of heat-transferring fluid necessary and this stratagem avoids stoppage of heating of the radiators each time hot water is required by the sanitary water users.

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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)
  • Steam Or Hot-Water Central Heating Systems (AREA)
  • Heat-Pump Type And Storage Water Heaters (AREA)
  • Paper (AREA)
  • Control Of Steam Boilers And Waste-Gas Boilers (AREA)
EP05003629A 2004-02-24 2005-02-21 Device for flow management in combined heating units for sanitary water and house rooms and boiler unit for combined heating of sanitary water and house rooms Active EP1582824B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
SI200530446T SI1582824T1 (sl) 2004-02-24 2005-02-21 Naprava za uravnavanje pretoka v kombiniranih ogrevalnih enotah za sanitarno vodo in prostore in kotel za kombinirano gretje sanitarne vode in prostorov
PL05003629T PL1582824T3 (pl) 2004-02-24 2005-02-21 Urządzenie do zarządzania przepływem w połączonych zespołach grzewczych dla wody sanitarnej i pomieszczeń domowych oraz zespĆ³Å‚ kotła do połączonego ogrzewania wody sanitarnej i pomieszczeń domowych

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT000314A ITMI20040314A1 (it) 2004-02-24 2004-02-24 Dispositivo per la gestione di flussi in gruppi di riscaldamento combinato di acqua sanitaria e di ambienti domestici e gruppo caldaia per il riscaldamento combinato di acqua sanitaria e di ambienti domestici
ITMI20040314 2004-02-24

Publications (3)

Publication Number Publication Date
EP1582824A2 EP1582824A2 (en) 2005-10-05
EP1582824A3 EP1582824A3 (en) 2006-05-10
EP1582824B1 true EP1582824B1 (en) 2008-08-13

Family

ID=34878843

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05003629A Active EP1582824B1 (en) 2004-02-24 2005-02-21 Device for flow management in combined heating units for sanitary water and house rooms and boiler unit for combined heating of sanitary water and house rooms

Country Status (9)

Country Link
EP (1) EP1582824B1 (pl)
AT (1) ATE404828T1 (pl)
DE (1) DE602005008797D1 (pl)
DK (1) DK1582824T3 (pl)
ES (1) ES2311890T3 (pl)
IT (1) ITMI20040314A1 (pl)
PL (1) PL1582824T3 (pl)
PT (1) PT1582824E (pl)
SI (1) SI1582824T1 (pl)

Families Citing this family (9)

* Cited by examiner, ā€  Cited by third party
Publication number Priority date Publication date Assignee Title
AU2007219645B2 (en) * 2006-03-02 2012-03-15 Dux Manufacturing Limited Methods and apparatuses for operating hot water systems
ITMI20060773A1 (it) * 2006-04-19 2007-10-20 Fugas S P A Circuito idraulico per il riscaldamento e la produzione di acqua calda sanitaria ottenuti da una sorgente si acqua calda centralizzata
EP2093515B1 (de) * 2008-02-22 2011-08-17 Grundfos Management A/S Teilbaueinheit fĆ¼r eine Kompaktheizungsanlage
EP2093517B1 (de) 2008-02-22 2014-01-15 Grundfos Management A/S Baueinheit fĆ¼r eine Kompaktheizungsanlage
DE502008003346D1 (de) * 2008-02-22 2011-06-09 Grundfos Management As Baueinheit fĆ¼r eine Kompaktheizungsanlage
GB2459893B (en) * 2008-05-09 2011-02-16 Paul Frederick Dudley Water heating system
EP2397777B1 (de) * 2010-06-19 2016-08-03 Grundfos Management A/S GehƤuseeinheit fĆ¼r eine Heizungsanlage
CN106979612B (zh) * 2017-04-28 2022-12-20 å¹æäøœäø‡å’Œēƒ­čƒ½ē§‘ęŠ€ęœ‰é™å…¬åø å£ęŒ‚ē‚‰
DE102021208121A1 (de) * 2021-07-28 2023-02-02 Robert Bosch Gesellschaft mit beschrƤnkter Haftung HeizgerƤt mit einer Bypassleitung sowie Einrichtung fĆ¼r ein HeizgerƤt

Family Cites Families (5)

* Cited by examiner, ā€  Cited by third party
Publication number Priority date Publication date Assignee Title
GB1270101A (en) * 1968-01-08 1972-04-12 Verner Overgaard Water heating systems
FR2173450A5 (pl) * 1972-02-25 1973-10-05 Saunier Duval
FR2330968A1 (fr) * 1975-11-07 1977-06-03 Vaillant Sa Chauffe-eau a circuit ferme
GB1529680A (en) * 1975-12-12 1978-10-25 British Gas Corp Central heating systems
FR2358622A1 (fr) * 1976-07-12 1978-02-10 Chaffoteaux Et Maury Perfectionnements aux installations de production d'eau chaude pour le puisage

Also Published As

Publication number Publication date
SI1582824T1 (sl) 2009-02-28
ES2311890T3 (es) 2009-02-16
DE602005008797D1 (de) 2008-09-25
PL1582824T3 (pl) 2009-01-30
ITMI20040314A1 (it) 2004-05-24
ATE404828T1 (de) 2008-08-15
EP1582824A3 (en) 2006-05-10
EP1582824A2 (en) 2005-10-05
PT1582824E (pt) 2008-10-27
DK1582824T3 (da) 2008-11-24

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