EP1582824B1 - Dispositif de gestion de flux dans une chaudière mixte et chaudière mixte - Google Patents

Dispositif de gestion de flux dans une chaudière mixte et chaudière mixte 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
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Application number
EP05003629A
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German (de)
English (en)
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EP1582824A3 (fr
EP1582824A2 (fr
Inventor
Giovanni Luca Gallus
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GV STAMPERIE SpA
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GV STAMPERIE SpA
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Priority to SI200530446T priority Critical patent/SI1582824T1/sl
Priority to PL05003629T priority patent/PL1582824T3/pl
Publication of EP1582824A2 publication Critical patent/EP1582824A2/fr
Publication of EP1582824A3 publication Critical patent/EP1582824A3/fr
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Publication of EP1582824B1 publication Critical patent/EP1582824B1/fr
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H9/00—Details
    • F24H9/14—Arrangements for connecting different sections, e.g. in water heaters 
    • 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 heaters 
    • 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 heaters 
    • 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)

Claims (21)

  1. Unité de chaudière comprenant un premier circuit pour chauffer un fluide caloporteur à envoyer à un système de chauffage (17) pour des pièces de maisons et un second circuit pour chauffer de l'eau sanitaire à envoyer à des utilisateurs d'eau sanitaire (16), ledit premier circuit comprenant un échangeur de chaleur primaire (14) pour chauffer le fluide caloporteur et ledit second circuit comprenant un échangeur de chaleur secondaire (21) pour chauffer l'eau sanitaire, l'unité de chaudière comprenant également des moyens (22, 23) pour dévier dudit premier circuit une fraction de flux du fluide caloporteur pour l'envoyer à l'échangeur de chaleur secondaire (21), caractérisée en ce que ladite unité de chaudière comprend en outre un dispositif de mesure de flux (24) raccordé pour mesurer le flux requis d'eau sanitaire chauffée, lesdits moyens de déviation (22, 23) étant commandés par des moyens de commande (26) raccordés au dispositif de mesure de flux (24) de manière à réguler la quantité de ladite fraction en fonction des exigences du flux d'eau sanitaire mesuré.
  2. Unité de chaudière selon la revendication 1, caractérisée en ce que lesdits moyens de déviation (22, 23) comprennent une soupape proportionnelle à trois voies alimentée.
  3. Unité de chaudière selon la revendication 1, caractérisée en ce que ledit dispositif de mesure de flux (24) comprend une turbine (41) agencée sur ledit second circuit.
  4. Unité de chaudière selon la revendication 1, caractérisée en ce que le fluide caloporteur est l'eau.
  5. Unité de chaudière selon la revendication 4, caractérisée en ce que l'échangeur primaire (14) est un échangeur de chaleur à eau-vapeurs.
  6. Unité de chaudière selon la revendication 1, caractérisée en ce que ledit échangeur secondaire (21) est un échangeur à contre-courant.
  7. Unité de chaudière selon la revendication 1, caractérisée en ce que les moyens de déviation et le dispositif de mesure de flux sont assemblés dans un seul corps agencé entre les échangeurs, le système de chauffage et les utilisateurs d'eau sanitaire.
  8. Dispositif de gestion de flux dans des unités combinées de chauffage d'eau sanitaire et de l'environnement domestique destinées à être agencées entre un échangeur de chaleur primaire (14) pour transférer de la chaleur à un fluide caloporteur et un système de chauffage (17) pour des pièces de maisons traversées par ledit fluide caloporteur, ledit dispositif (12) comprenant:
    - des moyens (22, 23) pour dévier une fraction du flux du fluide caloporteur, lesdits moyens de déviation comprenant au moins deux sorties et une entrée alimentée en fluide caloporteur venant de l'échangeur primaire (14),
    - un branchement de déviation d'eau (27) alimenté par une sortie desdits moyens de déviation, et
    - des moyens de commande (26) pour commander lesdits moyens de déviation (22),
    ledit branchement de déviation (27) formant un échangeur de chaleur secondaire (21) avec une section (28c) d'un branchement d'eau sanitaire (28) traversé par l'eau sanitaire, caractérisé en ce que le dispositif comprend en outre un dispositif de mesure (24) du flux du branchement d'eau sanitaire (28), ledit dispositif de mesure de flux (24) étant raccordé audits moyens de commande (26) pour réguler la quantité de ladite fraction de flux déviée en fonction de la mesure du débit d'eau sanitaire.
  9. Dispositif selon la revendication 8, caractérisé en ce que lesdits moyens de déviation comprennent une soupape proportionnelle à trois voies (22).
  10. Dispositif selon la revendication 9, caractérisé en ce que lesdits moyens de déviation comprennent un moteur d'entraînement (23) pour la soupape à trois voies (22).
  11. Dispositif selon la revendication 8, caractérisé en ce que les flux du branchement de déviation (27) et de la section du branchement d'eau secondaire (28) se font à contre-courant avec l'échangeur de chaleur secondaire (21).
  12. Dispositif selon la revendication 8, caractérisé en ce que ledit dispositif de mesure de flux (24) comprend une turbine (41) agencée sur le branchement d'eau sanitaire (28).
  13. Dispositif selon la revendication 12, caractérisé en ce que ladite turbine (41) est agencée à l'entrée de l'échangeur de chaleur secondaire (21).
  14. Dispositif selon la revendication 8, caractérisé en ce qu'il comprend une pompe (20) pour la remise en circulation du fluide caloporteur.
  15. Dispositif selon la revendication 14, caractérisé en ce que ladite pompe (20) est agencée en série avec l'échangeur de chaleur primaire (14).
  16. Dispositif selon la revendication 8, caractérisé en ce qu'il comprend un capteur de flux minimal (25) en série avec l'échangeur de chaleur primaire (14).
  17. Dispositif selon les revendications 15 et 16, caractérisé en ce que le capteur de flux minimal (25) est agencé immédiatement en amont de ladite pompe de remise en circulation (20).
  18. Dispositif selon la revendication 8, caractérisé en ce qu'il comprend un branchement de contournement (30) en parallèle avec ledit branchement de déviation (27) pour assurer un flux minimal de fluide caloporteur opposé à l'échangeur de chaleur primaire (14).
  19. Dispositif selon la revendication 8, caractérisé en ce qu'il est formé en un seul bloc.
  20. Dispositif selon la revendication 19, caractérisé en ce qu'il comprend deux raccordements (118a, 118b) pour raccorder le dispositif de chauffage (12) à un branchement de retour (18) du système de chauffage à l'échangeur primaire et deux raccordements (119a, 119b) pour raccorder le dispositif (12) à un branchement de distribution (19) de l'échangeur primaire à l'installation de chauffage et deux raccordements (128a, 128b) pour raccorder le dispositif (12) au branchement d'eau sanitaire (28).
  21. Dispositif selon la revendication 8, caractérisé en ce que le flux dans le branchement de déviation d'eau (27) est virtuellement proportionnel au flux du branchement d'eau sanitaire (28).
EP05003629A 2004-02-24 2005-02-21 Dispositif de gestion de flux dans une chaudière mixte et chaudière mixte Active EP1582824B1 (fr)

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 zespół kotła do połączonego ogrzewania wody sanitarnej i pomieszczeń domowych

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITMI20040314 2004-02-24
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

Publications (3)

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

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EP05003629A Active EP1582824B1 (fr) 2004-02-24 2005-02-21 Dispositif de gestion de flux dans une chaudière mixte et chaudière mixte

Country Status (9)

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

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007098561A1 (fr) * 2006-03-02 2007-09-07 Dux Manufacturing Limited Procédé et dispositifs d'exploitation de systèmes de fourniture d'eau chaude
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
EP2093517B1 (fr) 2008-02-22 2014-01-15 Grundfos Management A/S Composant pour installation de chauffage compacte
EP2093515B1 (fr) * 2008-02-22 2011-08-17 Grundfos Management A/S Composant partiel pour une installation de chauffage compacte
ATE507442T1 (de) * 2008-02-22 2011-05-15 Grundfos Management As Baueinheit für eine kompaktheizungsanlage
GB2459893B (en) * 2008-05-09 2011-02-16 Paul Frederick Dudley Water heating system
EP2397777B1 (fr) * 2010-06-19 2016-08-03 Grundfos Management A/S Unité de boîtier pour une installation de chauffage
CN106979612B (zh) * 2017-04-28 2022-12-20 广东万和热能科技有限公司 壁挂炉
DE102021208121A1 (de) * 2021-07-28 2023-02-02 Robert Bosch Gesellschaft mit beschränkter Haftung Heizgerät mit einer Bypassleitung sowie Einrichtung für ein Heizgerät

Family Cites Families (5)

* Cited by examiner, † 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 (fr) * 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
EP1582824A3 (fr) 2006-05-10
DE602005008797D1 (de) 2008-09-25
ES2311890T3 (es) 2009-02-16
SI1582824T1 (sl) 2009-02-28
EP1582824A2 (fr) 2005-10-05
ATE404828T1 (de) 2008-08-15
ITMI20040314A1 (it) 2004-05-24
PL1582824T3 (pl) 2009-01-30
PT1582824E (pt) 2008-10-27
DK1582824T3 (da) 2008-11-24

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