EP0674140A2 - Chauffe-eau à gaz - Google Patents

Chauffe-eau à gaz Download PDF

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Publication number
EP0674140A2
EP0674140A2 EP95710010A EP95710010A EP0674140A2 EP 0674140 A2 EP0674140 A2 EP 0674140A2 EP 95710010 A EP95710010 A EP 95710010A EP 95710010 A EP95710010 A EP 95710010A EP 0674140 A2 EP0674140 A2 EP 0674140A2
Authority
EP
European Patent Office
Prior art keywords
water tank
heat exchanger
heating
domestic
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Withdrawn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
EP95710010A
Other languages
German (de)
English (en)
Other versions
EP0674140A3 (fr
Inventor
Mario Dr. Adam
Joachim Plate
Bernhard Viefhues
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.)
Vaillant GmbH
Original Assignee
Joh Vaillant GmbH and Co
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
Priority claimed from AT89894A external-priority patent/AT400985B/de
Priority claimed from AT109594A external-priority patent/AT401199B/de
Application filed by Joh Vaillant GmbH and Co filed Critical Joh Vaillant GmbH and Co
Publication of EP0674140A2 publication Critical patent/EP0674140A2/fr
Publication of EP0674140A3 publication Critical patent/EP0674140A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • 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
    • F24D11/00—Central heating systems using heat accumulated in storage masses
    • F24D11/002—Central heating systems using heat accumulated in storage masses water heating system
    • 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
    • F24H1/50—Water heaters for central heating incorporating heaters for domestic water incorporating domestic water tanks

Definitions

  • the invention relates to a gas-heated water heater according to the preamble of claim 1.
  • the aim of the invention is to propose a water heater of the type mentioned at the outset which is suitable for use in a combined water heater for the preparation of domestic and heating water.
  • the proposed measures make it possible to heat two water volumes by means of the burner. In this way, a water heater according to the invention can be converted into a combined water heater.
  • the heating water tank is usually supplied with heating medium, the service water being heated via a heat exchanger arranged in the heating water tank.
  • the aim of the invention is to propose a water heater of the type mentioned in the introduction, in which the loading of the heating water tank and the domestic water tank can be matched to the respective conditions.
  • the proposed measures have the advantage of a simple structure, since only one burner is required. Nevertheless, the loading of the two stores can be varied by the corresponding position of the flaps.
  • the two parts each of which is assigned to one of the two stores, can be acted upon to a greater or lesser extent by the fuel gases, and thus the one concerned Heat part of the primary heat exchanger through water to a greater or lesser extent.
  • the water heated in the primary heat exchanger can be supplied to one or the other storage tank as required.
  • a water heater according to the preamble of claim 4 has the advantage that the heating water is guided in a closed circuit and therefore calcification of the primary heat exchanger can be avoided by appropriate treatment of the heating water.
  • the features of claim 8 give the advantage of a very simple construction, the heating water being heated via the thermosiphon effect.
  • the driving potential of the thermosiphon effect or natural circulation is a pressure difference in the fluid to be pumped, which arises from a density difference, which itself results from a temperature difference that causes a flow.
  • the features of claim 9 give the advantage of a very simple division of the energy supplied to the individual stores.
  • the features of claim 10 ensure a separation of the process water from the heating water. This makes it possible to fill a heating system with appropriately treated water in order to largely avoid corrosion damage.
  • the features of claim 11 result in the advantage that the process water is heated directly by the further heat exchanger serving as the primary heat exchanger and can therefore be easily brought to a temperature of, for example, 60 ° C. in order to prevent the multiplication of legionella.
  • the heating water can be brought to a sufficiently high flow temperature via the storage tank designed as a secondary heat exchanger, which is usually far below this value.
  • the features of claim 12 result in the advantage that the temperature of the water entering the primary heat exchanger can be regulated, as a result of which a too high temperature of the water flowing out of the primary heat exchanger and thus calcification of the primary heat exchanger can be avoided.
  • a water heater according to the preamble of claim 13 can by the characterizing features of claim 13 Storage and thus also the heating water can be heated via the primary heat exchanger.
  • a priority circuit for preparing domestic water can also be provided, so that the charging of the storage device is interrupted at the start of the tap.
  • the storage tank it is possible to keep the output of the primary heat exchanger low and still achieve very high tapping capacities from the hot water temperature and throughput through the simultaneous operation of the storage tank and the primary heat exchanger when drawing off hot water.
  • Fig. 1 to 10 different embodiments of water storage according to the invention.
  • a water reservoir 1 is provided, which is provided on all sides with thermal insulation 2.
  • a recess 3 is provided in the water reservoir 1, in which a burner 4 is arranged, which can be supplied with gas in a modulating manner via a gas line 5 and a gas valve 6.
  • a space 8 bounded by inner walls 7 of the water reservoir 1 leads upwards from the recess 3, the inner walls 7 being equipped with slats 9 directed obliquely downwards.
  • An exhaust pipe 10 is arranged centrally in the room 8, in the upper region 32 of which a further heat exchanger 11 is arranged, which is connected via a feed line 12 to a heating system 13, which is connected to the heat exchanger 11 via a return line 14.
  • a circulation pump 15 is arranged in the feed line 12.
  • flaps 18 are pivotally held on two mutually parallel edges of the exhaust pipe 10.
  • the cross section of a space 8 remaining between the exhaust pipe 10 and the inner walls 7 or the exhaust pipe 10 can be varied.
  • the interior 33 of the water reservoir 1 is connected to a cold water connection 16 and a tap line 17, the cold water connection being led into the lower region 34 of the water reservoir 1 and the tap line 17 from the uppermost region 35 of the water reservoir 1 leads away.
  • the process water in the interior 33 of the water reservoir 1 is heated directly by the fuel gases of the burner 4 via the wall 7, the flaps 18 reducing or closing the cross section of the exhaust pipe 10 in this case. In this case, the fuel gases flow through the space 8, the heat transfer to the interior of the water reservoir 1 being improved by the fins 9.
  • a motor 48 of the circulation pump 15 is connected to a control and regulating unit 37 via a line 47, a temperature sensor 40 arranged in the lower region 34 of the water reservoir 1 via a line 41, and a motor 44 actuating the flaps 18 via a line 45, via a line 39 a drive 38 of the gas valve 6 and via a line 43 a temperature sensor 42 arranged in the upper region 35 of the water reservoir 1.
  • the room 8 When there is a heat request to the heating system 13, the room 8 is closed by the flaps 18, so that the fuel gases flow through the exhaust pipe 10 and act on the heat exchanger 11 to heat the heating water and to supply the heating system 13 with energy. A certain small amount of heat transfer into the interior 33 of the water reservoir 1 takes place via the recess 3.
  • the heated water located in the water reservoir 1 can be used for the time being, so that the burner 4 only has to be started after the temperature in the interior 33 of the water reservoir 1 has dropped, which results in a very significant reduction in the burner's switching cycles.
  • the interior 33 of the water reservoir 1 is filled with heating water, the water reservoir 1 being connected via the flow line 12 to a bypass valve 19 which is connected to the circulation pump 15 via a connecting line 20, which in turn is connected via a Connection line 21 is connected to the heating system 13.
  • the return line 14 leads back to the water reservoir 1, the return line 14 opening into the lower region 34 of the water reservoir 1 and the feed line 12 leading away from the upper region 35 of the water reservoir 1.
  • the bypass line 22 connected to the bypass valve 19 is further connected to the return line 14.
  • the burner 4 is started at a tap and the cross section of the exhaust pipe 10 is released by the flaps 18.
  • the energy requirement of the heating can be covered by the water reservoir 1 for a longer period of time. This also results in a corresponding reduction in the number of switching cycles of the burner 4.
  • a burner 4 which can be supplied with gas via a gas valve 104, is arranged in a flame tube 102, which is surrounded by a domestic hot water tank 1.
  • the outer jacket of the domestic hot water tank 1 is provided with a layer 105 made of a poorly heat-conducting material.
  • Pipes 6 through which fuel gases from the burner 4 can flow can be arranged uniformly distributed over the circumference of the hot water tank 1 between the hot water tank 1 and a heating water tank 11 surrounding it.
  • the heating water tank 11 is provided on its outside with a layer 105 made of a poorly insulating material.
  • the flame tube 102 and the tubes 106 are optionally more or less closable at their upper ends with flaps 107, 108.
  • the flow of fuel gases through the flame tube 102 and the tubes 106 can be divided as required.
  • the loading of the domestic hot water tank 1 and the heating water tank 11 can be varied.
  • the heating water reservoir 11 can be supplied with more combustion gases, and the heating water can be heated accordingly. It is only necessary to essentially close the flap 107 and to open the flaps 108.
  • the flap 107 can be opened and the flaps 108 closed to heat the process water. In this case, a corresponding change in the position of the flaps 107, 108 can be carried out with a conventional priority circuit for a tap.
  • the tubes 106 are provided in the area adjacent to the wall of the heating water storage 11 with obliquely downwardly directed ribs 111 which improve the heat transfer from the fuel gases to the heating water, these wall areas of the heating water storage 11 and the ribs 111 being made of a good heat-conducting material.
  • the heating system 109 is constructed in a conventional manner and has a flow line 12 connected to the heating water tank 11, in which a bypass valve 113 is arranged, to which a bypass line 117 leading to a return line 14 connected to the heating water tank 11 is connected. Furthermore, a circulation pump 15 is arranged in the flow line 12, which is connected upstream of a radiator system 13.
  • the hot water tank 1 is provided with a cold water connection 118, which extends into the lower area of the hot water tank 1, whereas the tap line 119 leads away from the uppermost area of the hot water tank 1.
  • a domestic hot water tank 124 is provided, which is surrounded by the heating water tank 110, the two tanks 110, 124 being insulated from one another and also from the environment by a layer 105 of poorly insulating material.
  • a two-part primary heat exchanger 120 is provided, one part 121 of which is connected to the hot water tank 124 via a flow line 123 opening in the area of the top of the hot water tank 124 and a return line 126 provided with a circulation pump 125, the return line 126 starting from the lower area of the hot water tank 124 leads away.
  • the second part 122 of the primary heat exchanger 120 is connected via a flow line 127 to the heating water reservoir 110, from the upper area of which a return line 129 provided with a circulation pump 128 leads away, which is connected to the part 122 of the primary heat exchanger 120.
  • the flow line 127 opens into the lower area of the interior of the heating water tank 110.
  • pivotable flap 130 On the side of the primary heat exchanger 120 facing the burner 4, between the two parts 121, 122 there is a pivotable flap 130 which is provided with a drive (not shown).
  • the heated service water flows directly into the interior of the service water tank 124, which has a cold water connection 118 and a tap line 119 is provided. Likewise, the heated heating water flows directly into the heating water tank 110.
  • a one-piece primary heat exchanger 131 is provided, which is connected via a flow line 132 to a three-way valve 133, the other two connections of which are connected to a pipe coil 134, which is used for indirect heating of the domestic hot water tank 124, and the Inside the heating water tank 110, are connected.
  • the pipe coil 134 and the interior of the heating water reservoir 110 are further connected to a return line 135, in which a circulation pump 136 is arranged and which leads to the primary heat exchanger 131.
  • the heated heating water which can be appropriately treated, in particular largely softened, can be used for indirect heating of the process water or for supplying the heating system 109, as required. It is possible due to the stored hot water and also the stored heating water that taps of hot water can be covered to a lesser extent from the hot water tank 124 alone, without the burner 4 starting.
  • the three-way valve 133 is connected to the heating water tank 10 and a primary circuit 138 of a secondary heat exchanger 137, the primary circuit 138 being connected to the return line 135 via a line 139, the connection point being in front of the Circulation pump 136 lies, so that the heating water can be conveyed via the path of primary heat exchanger 131, flow line 132, three-way valve 133, primary circuit 138, line 139, return line 135, primary heat exchanger 131.
  • the secondary circuit 140 of the secondary heat exchanger 137 is connected on the one hand via a flow line 141 to the interior of the domestic hot water tank 124 and on the other hand to a return line 142 in which a circulation pump 143 is arranged.
  • the domestic water is heated indirectly, the primary heat exchanger 131 only having the preferably treated heating water flowing through it.
  • the division of the heating water flow takes place through the three-way valve 133 and can be varied depending on the circumstances and requirements.
  • the hot water tank 124 is integrated into the heating water tank 110 in a bowl-like manner, the hot water tank 110 also extending below the bottom of the hot water tank 124.
  • the bottom of the domestic hot water tank 124 is also provided with a layer 105 made of a poorly heat-conducting material.
  • the hot water tank 124 is penetrated by curved tubes 144 made of a good heat-conducting material, the tubes 144 penetrating the bottom of the hot water tank 124 and its jacket in the upper region of the hot water tank 124.
  • the flow line 123 opens into the upper area of the domestic hot water tank 124, and the return line 135 goes away from the lower area of the domestic hot water tank 124 and contains a circulation pump 136.
  • the domestic hot water tank 124 only the inside of the domestic hot water tank 124 is heated, whereby it leads to a circulation of the domestic water via the return line 135, the primary heat exchanger 131 and the supply line 123 back to the domestic water exchanger 124, which is provided with a cold water connection 118 and a tap line 119.
  • the heating water which is completely separated from the hot water, is only heated by heating the heating water in the pipes 144 in the area of the hot water heat exchanger 124. This causes the heating water to circulate due to the thermosiphon effect, which ultimately heats up the entire heating water .
  • the flow line 132 in which there is also a three-way valve 133, is included a pipe coil 145 connected, which is located in the heating water tank 110.
  • This coil of pipes 145 is connected to the return line 135, which is further connected to the lower region of the domestic hot water tank 124.
  • the three-way valve 133 is further connected to the domestic hot water tank 124, the corresponding line 146 opening into the upper region of the domestic hot water tank 124.
  • the domestic hot water tank 124 has a cold water connection 118 and a tap line 119.
  • This embodiment therefore only heats the process water.
  • the heating water is heated indirectly via the pipe coil 145.
  • the distribution of the hot water heated in the primary heat exchanger 131 takes place depending on the respective requirements via the three-way valve 133, with which either the coil 145 for heating the heating water is heated with heated hot water or the heated hot water is passed through the hot water storage tank for the latter Warm content.
  • an exhaust pipe 201 in which a burner 4 is arranged, is surrounded by an annular storage 203.
  • the burner 4 can be supplied with gas via a gas valve 217.
  • a wall 231 of the exhaust pipe 201 is provided with ribs 222 which improve the heat transfer and are directed obliquely downward toward the burner 4.
  • a tubular insert 204 is also central arranged in the exhaust pipe 201, in the upper, distant from the burner 4 area 232 a primary heat exchanger 11 is arranged.
  • the store 203 which is provided with a heat insulation layer 2, is also designed as a secondary heat exchanger and has a pipe coil 207, which in the embodiment according to FIG. 9 is connected to a cold water connection 208.
  • the pipe coil 207 is connected to the primary heat exchanger 11, which is connected to a tap line 209 on the outflow side.
  • a heating system 210 is connected to the storage 203 with a flow and a return line 12, 14, a multi-way valve 213 being arranged in the flow line 12, to which a bypass line 214 to the storage 203 is connected. Furthermore, a circulation pump 15 is switched on in the return or flow line 12, which leads to a radiator system 13.
  • flaps 218 are pivotally held in the lower region of the insert 204. With these flaps 218, the access cross-section for the fuel gases into the interior of the insert 204 and the annular space 219 surrounding them can be varied, whereby the supply of heat to the primary heat exchanger 11 and to the storage device 203 can also be controlled; the fuel gases leave the water heater 201 via a Exhaust nozzle 233.
  • the tap water flows over a pipe coil 207 in which it is preheated, to the primary heat exchanger 11.
  • the storage contents are heated directly by the combustion gases of the burner 4, which flow through the space 219. This also heats the heating water.
  • the flaps 218 are brought into a position by a control device 238 in which the main part of the fuel gases flow through the interior of the insert 204 and act on the primary heat exchanger 11 and thus heat the service water.
  • a control device 238 is provided, which is connected to a process water setpoint generator 239 via a line 240. Furthermore, the control device 238 is connected via a line 241 to a coil 242 of the gas valve 217, via a line 244 to an actual water value sensor 243, via a line 248 to a motor 249 of the three-way valve 213, via a Line 250 is connected to a motor 251 of the circulation pump 15 of the heater, via line 253 to a heating flow actual value sensor 252, via line 255 to an outside temperature sensor 254 and via line 245 to a control of the flaps 218.
  • the pipe coil 207 is connected to the supply and return lines 12, 14 of the heating system 210, the cold water connection 208 being connected to the store 203. Furthermore, the cold water connection 208 is connected via a line 220 to a mixing valve 221, the second connection of which is connected to a line 234 and the third connection of which is connected to the upper region 236 of the reservoir 203 via a further line 235.
  • the administration 234 connects the mixing valve 221 to the primary heat exchanger 11, the line 235 connects the hottest part of the accumulator 203 to the primary heat exchanger 11.
  • the domestic water located therein is heated, and a temperature of 60 ° C. can be reached.
  • the heating water is indirectly heated when flowing through the coil 207.
  • the fuel gas flow can be guided more over the interior of the insert 204 and the primary heat exchanger 11 can be acted upon correspondingly more strongly.
  • more or less cold water can be fed via line 220 to primary heat exchanger 11 via mixing valve 221, so that only slightly heated domestic water is withdrawn from storage tank 203.
  • the accumulator 203 is heated exclusively via the primary heat exchanger 11 and is separated from it. This results in a flow from the primary heat exchanger 11 via a changeover valve 230, a line 229, the accumulator 203, a line 226, the circulation pump 227 and a changeover valve 225 back to the primary heat exchanger 11.
  • the supply and return lines 12, 14 of the heating system 210 are on the pipe coil 207 connected.
  • the cold water connection 208 is connected via a distribution valve 223 and the line 237 to the lower region 256 of the interior of the store 203, which forms a circuit of the store 203 serving as a secondary heat exchanger, the line 220 connected to this distribution valve 223 via two further valves 224, 225 leads to the primary heat exchanger 11, 225 being a changeover valve and 224 a mixing valve.
  • a line 226 is connected, which is connected to the changeover valve 225 via a circulation pump 227.
  • the changeover valve 221 connected to a connection 257 arranged in the upper region 236 of the accumulator 203 is connected to the mixing valve via a line 228 224 and the tap line 209 via the line 228, the mixing valve 221 and the line 259. This enables tapping without the burner 4 operating.
  • the distribution valve 223 opens in the direction of the reservoir 203 and the mixing valve 221 in the direction from the reservoir 203 to the tap line 209 via a line 259, so that the process water flows into the reservoir 203 at the bottom and the heated process water flows out via the mixer valve 221.
  • connection 260 arranged in the upper region 236 of the accumulator 203 is connected via a line 229 to a changeover valve 230, which further enables the connection of the primary heat exchanger 11 on the outflow side to the tap line 209.
  • the process water in the reservoir 203 is returned to the reservoir 203 via the line 226, the circulation pump 227, the changeover valve 225, the primary heat exchanger 11, which is acted upon by the burner 4, the changeover valve 230 and the line 229, and is thus heated.
  • the heating water flowing through the coil 207 is also heated.
  • tapping is also possible via line 220 and valves 224 and 225, primary heat exchanger 11 and changeover valve 230 to tap line 209.
  • Heated service water can also be mixed into the cold water flowing into the primary heat exchanger 11 via the changeover valve 221, the line 228 and the mixing valve 224 to allow larger dispensing throughputs or higher dispensing temperatures.
  • the flow rate results from the opening of the tap line 209.
  • a control device 238 is provided, which is connected to a process water setpoint generator 239 via a line 240.
  • the control device 238 is also connected via a line 241 to a coil 242 of the gas valve 217, via a line 244 to an actual water value sensor 243, via a line 250 to a motor 251 of the circulating pump 15 of the heater, via a line 253 connected to a heating flow actual value sensor 252 and via a line 255 to an outside temperature sensor 254.
  • control device 238 is connected via a line 246 to the coil 247 of the valve 221, via a line 248 to the coil 249 of the three-way valve 213, via a line 264 to a coil 263 of the valve 225, via a line 266 a coil 265 of the valve 224 and connected via a line 268 to a coil 267 of the valve 223.
  • the store When the burner 4 is in operation, the store is heated via a flow guide from the store 203 via line 226, the circulating pump 227 in operation, the changeover valve 225, the primary heat exchanger 11. The changeover valve 230, the line 229 and the connection 260 back to the storage 203.
  • the heating water in the coil 207 is also heated and can be made available to the heating system.
  • the incoming cold water can flow via valve 223, line 220, mixing valve 224, line 258, valve 225, primary heat exchanger 11 and the heated service water via valve 230 to tap line 209.

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)
  • Steam Or Hot-Water Central Heating Systems (AREA)
  • Heat-Pump Type And Storage Water Heaters (AREA)
  • Domestic Hot-Water Supply Systems And Details Of Heating Systems (AREA)
EP95710010A 1994-03-24 1995-03-24 Chauffe-eau à gaz. Withdrawn EP0674140A3 (fr)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
DE4410827 1994-03-24
DE4410827 1994-03-24
AT898/94 1994-04-28
AT89894A AT400985B (de) 1994-04-28 1994-04-28 Wasserheizer
AT109594A AT401199B (de) 1994-05-27 1994-05-27 Gasbeheizter wasserspeicher
AT1095/94 1994-05-27

Publications (2)

Publication Number Publication Date
EP0674140A2 true EP0674140A2 (fr) 1995-09-27
EP0674140A3 EP0674140A3 (fr) 1996-07-10

Family

ID=27146852

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95710010A Withdrawn EP0674140A3 (fr) 1994-03-24 1995-03-24 Chauffe-eau à gaz.

Country Status (2)

Country Link
EP (1) EP0674140A3 (fr)
DE (1) DE19510991A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2485798A (en) * 2010-11-24 2012-05-30 Zenex Technologies Ltd A heater having primary and secondary heat exchangers
EP2933576A4 (fr) * 2012-12-12 2016-08-31 Kyungdong Navien Co Ltd Chaudière de chauffage et d'eau chaude combinée centrée sur l'eau chaude
EP3789691A4 (fr) * 2018-05-04 2021-06-23 Kyungdong Navien Co., Ltd. Chaudière

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT400625B (de) * 1994-05-27 1996-02-26 Vaillant Gmbh Anlage zur heiz- und brauchwasserbereitung mit einem gasbeheizten brenner und einem wärmetauscher

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2123793A5 (fr) * 1971-02-01 1972-09-15 Lecomte Robert
CH544915A (de) * 1972-05-02 1974-01-15 Kaesermann Paul Gasbeheizte Anlage mit Umlaufwasser als Wärmeträger
BE789350A (nl) * 1972-09-27 1973-01-15 Bastelaere Wilfried Van Verwamingsinrichting.
DE2749714A1 (de) * 1977-11-07 1979-05-23 Walter Dipl Ing Zimmermann Waermespeicher
ATE13720T1 (de) * 1982-03-20 1985-06-15 Vaillant Gmbh Brennstoffbeheizter wasserspeicher.
DE3409213A1 (de) * 1983-03-19 1984-09-20 Joh. Vaillant Gmbh U. Co, 5630 Remscheid Brennstoffbeheizte waermequelle
DE4201972C2 (de) * 1991-01-25 2001-07-05 Vaillant Joh Gmbh & Co Wasserspeicher
AT402764B (de) * 1992-04-07 1997-08-25 Vaillant Gmbh Wasserheizer für brauch- und heizungswasser
AT398835B (de) * 1992-08-27 1995-02-27 Vaillant Gmbh Kombinierter wasserheizer
EP0644382A1 (fr) * 1993-09-17 1995-03-22 Joh. Vaillant GmbH u. Co. Chauffe-eau à brûleur

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2485798A (en) * 2010-11-24 2012-05-30 Zenex Technologies Ltd A heater having primary and secondary heat exchangers
EP2458299A2 (fr) 2010-11-24 2012-05-30 Zenex Technologies Limited Chauffage
GB2485798B (en) * 2010-11-24 2014-06-25 Zenex Technologies Ltd A heater
EP2933576A4 (fr) * 2012-12-12 2016-08-31 Kyungdong Navien Co Ltd Chaudière de chauffage et d'eau chaude combinée centrée sur l'eau chaude
US9945566B2 (en) 2012-12-12 2018-04-17 Kyungdong Navien Co., Ltd. Hot water-centered combined hot water and heating boiler
EP3789691A4 (fr) * 2018-05-04 2021-06-23 Kyungdong Navien Co., Ltd. Chaudière

Also Published As

Publication number Publication date
EP0674140A3 (fr) 1996-07-10
DE19510991A1 (de) 1995-09-28

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