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
  • F24D3/00—Hot-water central heating systems
  • F24D3/08—Hot-water central heating systems in combination with systems for domestic hot-water supply

Definitions

• the invention relates to wall-mounted mixed gas boilers, that is to say to boilers capable of supplying a primary heating circuit, but also a secondary generator of domestic hot water and it relates more precisely to a boiler whose generators primary and secondary are separate or separable.
• a wall-mounted mixed gas boiler is made up, as we know, of a primary heat generator for heating essentially comprising a gas burner and its associated gas intake mechanisms, a combustion chamber closed by a primary exchanger, a system of evacuation of combustion products, and a water circulation pump.
• the exhaust system is a draft hood in the case of an atmospheric boiler or a smoke extractor in the case of a sealed boiler.
• the mixed boiler also includes a secondary generator for the production of domestic hot water, consisting of a secondary exchanger, for example a plate exchanger.
• a secondary generator for the production of domestic hot water, consisting of a secondary exchanger, for example a plate exchanger.
• a three-way valve In the circuit of this secondary generator are provided a three-way valve, a flow sensor for domestic water draw-off, possibly a tank for the ir ⁇ cro-accumulation of domestic hot water and appropriate temperature and flow sensors. All these components are brought together in a single device, as compact and light as possible so that it can be fixed to the wall and integrated into a room, generally a kitchen or a garage. Having a single device to perform all of these functions may have some drawbacks in some installations.
• the appliance if it is to be installed in a kitchen, it can sometimes be too bulky to fit in or next to one of the cupboards. As far as possible, it is therefore preferable to move the boiler away from the living rooms, if only to avoid, on the one hand, the nuisance caused by noise, in particular during the ignition of the burner and the operation of the circulation pump and on the other hand all the risks linked to the circulation of gases and combustion products in a closed enclosure which some people consider as potentially dangerous and seek to avoid. But a boiler installed for example in a garage or a laundry room is often far from the draw points (kitchen, bathroom ...), which generates a waiting time to obtain hot water, and consumption increased water and energy.
• the invention therefore makes it possible to get rid of the circulation loops of sanitary hot water which are expensive to install and are sources of losses in electrical and thermal energy, and while offering the same service as conventional wall-mounted boilers, without time waiting at the various draw-off points.
• the invention is based on the principle of the possible and modular separation of the primary and secondary generators according to the technique known as "split System".
• This technique essentially consists in producing at least two units for each of these two generators, these units being juxtaposed, separable and / or separate.
• a main object of the present invention therefore consists of a wall-mounted mixed gas boiler comprising a primary heat generator for heating with a gas burner, a combustion chamber closed by a primary exchanger, a system for evacuating combustion products. and a water circulation pump in the heating circuit of the appliance, and also comprising a secondary generator for the production of domestic hot water, consisting of a secondary exchanger with a three-way valve provided in the circuit of said generator boiler according to which the primary generator, with the primary exchanger, the gas burner and its associated mechanisms, as well as the circulation pump, forms a first module which is separable and / or separated from at least a second module containing a generator secondary for domestic hot water production, which includes essentially a secondary exchanger installed on a short circuit connected to the heating circuit of the primary generator.
• the primary generator is associated with two domestic hot water generators, namely a secondary generator with a secondary exchanger, and a tertiary generator with a tertiary exchanger, the two generators forming two modules mutually separated from each other, the short circuit of the tertiary generator being connected on one side to the heating circuit of the primary generator, and on the other to the short circuit of the secondary generator.
• Figure 1 a schematic view of the assembly of a mixed boiler with a secondary module for domestic hot water.
• Figure 2 a general view of a kitchen incorporating at two separate points the primary generator and the secondary generator.
• FIG 3 a general view of an alternative installation in which the primary generator is outside the kitchen and in which the secondary generator serves several draw points.
• Figure 4 a schematic view of the assembly of a mixed boiler with a secondary module and a tertiary module, domestic hot water generators.
• Figure 5 a general view similar to the figure
• Figure 6 a general view of an alternative installation in technical sheath on housing bearings.
• FIG. 1 a mixed boiler dice "simple split" consisting of a first module primary heat generator generally designated by the reference 1 and a second secondary generator of domestic hot water generally designated by the reference 2.
• the primary generator 1 essentially comprises a gas burner 10 and its mechanism 11 d gas inlet, a combustion chamber 12 closed by a primary exchanger 13, and a hood 14 for evacuating combustion products.
• a circulation pump 16 In the hot water return pipe 15 in which the water admitted to the exchanger circulates, there is a circulation pump 16 and on the hot water outlet side through the pipe 18 in the direction of the arrow is placed a temperature sensor 17, the conduits (15, 18) forming the heating circuit of the primary generator.
• a secondary exchanger 20 is installed on a short circuit 21 connected on one side to the hot water return circuit 15 and on the other side to the conduit 18 for hot water departure via a three-way valve 22 which distributes the hot water also to the heating start circuit 27.
• Sanitary cold water is admitted to the exchanger 20 by a conduit 23 equipped with a flow sensor 24 and sanitary hot water leaves the exchanger to the drawing point by a conduit 25 equipped with a temperature sensor 26.
• the three-way valve 22 directs the hot water to the circuit 27.
• the heating request stops it is repositioned on the short circuit 21 with sanitary priority.
• the sensor 24 detects a drawing the ignition of the burner 10 intervenes to ensure the heating of the water by the exchanger 13 and its rapid circulation in the short circuit 21 for the heating of the domestic water in the secondary exchanger 20.
• the temperature is regulated by the sensor 26.
• the wall-mounted boiler thus consists of the primary 1 and secondary 2 generators which are separable and can be installed in two geographically different places or premises, of the dwelling.
• the primary generator 1 can be integrated into the tall elements 19 of a standard kitchen unit.
• the secondary generator 2 is placed in the lower part, for example under the sink 28 of the kitchen, so as not to disturb the aesthetics of the integrated kitchen.
• FIG. 4 schematically illustrates the mounting of a boiler of this type called "multi-split".
• Another tertiary generator designated as a whole by the reference 3 is independent of the generator 2. It comprises a tertiary sanitary exchanger 30 installed on a short circuit 31 connected on one side to the water return circuit 15 of the primary generator 1, and on the other hand to the short circuit 21 of the secondary generator 2 by means of another three-way valve 32 which is located on the short circuit 21, in series with the valve 22.
• the three-way valve 32 is therefore between the latter and the secondary exchanger 20. It is designed to be able to occupy an intermediate position which makes it possible to supply both the short circuit 31 and the exchanger 20.
• a stepping motor 41 is provided for the operation of the three-way valve 32.
• the three-way valve 22 opens towards the short circuit 21, on the other hand the three-way valve 32 closes towards the secondary exchanger 20 but opens towards the short circuit 31 so that the heating water emitted by the exchanger 13 directly heats the tertiary generator 3.
• the temperature is regulated by the sensor 17 placed on the primary circuit.
• the production of hot water by the tertiary sanitary exchanger 3 takes place at a fixed temperature setpoint, for example 55 ° C.
• a thermostatic valve 40 at the outlet of the tank 37 mixes the hot water produced at 55 ° C, with the cold network water.
• the microaccumulation reservoir 37 placed in series between the outlet of the exchanger 30 and the inlet of hot water into the thermostatic valve 40 makes it possible to immediately supply hot water to the draw-off point and thus compensate for the time of temperature rise of the primary exchanger and 1 tertiary exchanger located at a certain distance from each other.
• valve 22 is open in the direction of the short circuit 21.
• the three-way valve 32 will place in the middle position for which the heating water is distributed both to the short circuit 31 of the tertiary exchanger 30 and to the secondary exchanger 20.
• a stepping motor 41 for the operation of this three-way valve 32 allows fine adjustment of the water flow in the two sanitary exchangers in order to adjust the temperatures to the appropriate setpoints, according to sensors 17 and 26.
• FIG. 5 is an illustration of a “multi-split” type installation with two sanitary generators.
• the primary generator 1 is located in a garage and the secondary generator 2 under the sink 28 of the kitchen, to also serve a shower 29.
• a tertiary generator 3, connected to generators 1 and 2 according to the diagram in FIG. 3, is placed under a sink 42, therefore at a point still a little further from the primary generator.
• this tertiary generator 3 is associated with a reservoir 37 with micro-accumulation to compensate for the temperature rise time of the primary generator. This freed us from the hot water circulation loops, expensive to install and which are sources of energy losses electric and thermal, while limiting the waiting time at the various draw-off points.
• FIG. 6 A final example of application of the "ulti-split" system is illustrated in FIG. 6. It shows the installation of several primary generators 1 in a collective building.
• the generators are in a technical sheath on the landings of the building, in the vicinity of each dwelling equipped with at least one secondary generator 2 installed under the same conditions as above.
• Such an installation authorizes the intervention of after-sales services without the need for an appointment with the occupant of the accommodation since the maintenance of the appliance essentially takes place only on the burner and the combustion block of the primary generator located in the technical sheath. This results in substantial savings in the cost of maintaining the boilers.

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• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Thermal Sciences (AREA)
• Chemical & Material Sciences (AREA)
• Combustion & Propulsion (AREA)
• Water Supply & Treatment (AREA)
• General Engineering & Computer Science (AREA)
• Physics & Mathematics (AREA)
• Domestic Hot-Water Supply Systems And Details Of Heating Systems (AREA)
• Polishing Bodies And Polishing Tools (AREA)
• Details Of Fluid Heaters (AREA)
• Gas Burners (AREA)
• Heat-Pump Type And Storage Water Heaters (AREA)
• Fuel Cell (AREA)
• Devices For Medical Bathing And Washing (AREA)

Applications Claiming Priority (3)

Publications (2)

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ID=9551892

Family Applications (1)

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• 1999
  • 1999-11-09 FR FR9914046A patent/FR2800857B1/fr not_active Expired - Fee Related
• 2000
  • 2000-11-09 TR TR2004/01278T patent/TR200401278T4/xx unknown
  • 2000-11-09 EP EP00977643A patent/EP1228333B1/de not_active Expired - Lifetime
  • 2000-11-09 ES ES00977643T patent/ES2219416T3/es not_active Expired - Lifetime
  • 2000-11-09 WO PCT/FR2000/003121 patent/WO2001035028A1/fr active IP Right Grant
  • 2000-11-09 AT AT00977643T patent/ATE261091T1/de active
  • 2000-11-09 PT PT00977643T patent/PT1228333E/pt unknown
  • 2000-11-09 DE DE2000608780 patent/DE60008780T2/de not_active Expired - Lifetime

Non-Patent Citations (1)

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