WO2009095010A2 - Dispositif de chauffage - Google Patents

Dispositif de chauffage Download PDF

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Publication number
WO2009095010A2
WO2009095010A2 PCT/DE2009/000144 DE2009000144W WO2009095010A2 WO 2009095010 A2 WO2009095010 A2 WO 2009095010A2 DE 2009000144 W DE2009000144 W DE 2009000144W WO 2009095010 A2 WO2009095010 A2 WO 2009095010A2
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WO
WIPO (PCT)
Prior art keywords
temperature
control
heating
heat source
buffer memory
Prior art date
Application number
PCT/DE2009/000144
Other languages
German (de)
English (en)
Other versions
WO2009095010A3 (fr
Inventor
Hans Georg Baunach
Original Assignee
Hg Baunach Gmbh & Co Kg
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 Hg Baunach Gmbh & Co Kg filed Critical Hg Baunach Gmbh & Co Kg
Priority to DE112009000754T priority Critical patent/DE112009000754A5/de
Publication of WO2009095010A2 publication Critical patent/WO2009095010A2/fr
Publication of WO2009095010A3 publication Critical patent/WO2009095010A3/fr

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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
    • F24D3/00—Hot-water central heating systems
    • F24D3/08—Hot-water central heating systems in combination with systems for domestic hot-water supply
    • F24D3/082—Hot water storage tanks specially adapted therefor
    • 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
    • F24D11/003—Central heating systems using heat accumulated in storage masses water heating system combined with solar energy
    • 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
    • F24D11/004—Central heating systems using heat accumulated in storage masses water heating system with conventional supplementary heat source
    • 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
    • F24D12/00—Other central heating systems
    • F24D12/02—Other central heating systems having more than one heat source
    • 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
    • F24D3/082—Hot water storage tanks specially adapted therefor
    • F24D3/085—Double-walled tanks
    • 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
    • F24H15/00—Control of fluid heaters
    • F24H15/30—Control of fluid heaters characterised by control outputs; characterised by the components to be controlled
    • F24H15/305—Control of valves
    • F24H15/31—Control of valves of valves having only one inlet port and one outlet port, e.g. flow rate regulating valves
    • 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
    • F24H15/00—Control of fluid heaters
    • F24H15/30—Control of fluid heaters characterised by control outputs; characterised by the components to be controlled
    • F24H15/305—Control of valves
    • F24H15/315—Control of valves of mixing valves
    • 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
    • F24H15/00—Control of fluid heaters
    • F24H15/30—Control of fluid heaters characterised by control outputs; characterised by the components to be controlled
    • F24H15/305—Control of valves
    • F24H15/32—Control of valves of switching valves
    • 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
    • F24H15/00—Control of fluid heaters
    • F24H15/30—Control of fluid heaters characterised by control outputs; characterised by the components to be controlled
    • F24H15/335—Control of pumps, e.g. on-off control
    • F24H15/34—Control of the speed of pumps
    • 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
    • F24H9/12—Arrangements for connecting heaters to circulation pipes
    • F24H9/13—Arrangements for connecting heaters to circulation pipes for water heaters
    • F24H9/133—Storage heaters
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D20/00—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00
    • F28D20/0034—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00 using liquid heat storage material
    • F28D20/0039—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00 using liquid heat storage material with stratification of the heat storage material
    • 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
    • F24D3/12—Tube and panel arrangements for ceiling, wall, or underfloor 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
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B10/00—Integration of renewable energy sources in buildings
    • Y02B10/20—Solar thermal
    • 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
    • Y02B10/00—Integration of renewable energy sources in buildings
    • Y02B10/70—Hybrid systems, e.g. uninterruptible or back-up power supplies integrating renewable energies
    • 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]
    • 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
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/14—Thermal energy storage

Definitions

  • Regenerative heat sources are on the one hand much less controllable than fossil-heated heat generators. This is especially true for solar systems, but also for biomass combustion, combined heat and power and heat pumps and makes their operation on buffer storage required, in which the regenerative heat is stored until their use.
  • heat especially from solar plants and heat pumps, has only a limited temperature level, which makes heat disproportionately expensive at a high temperature level. Both reasons therefore require the most efficient possible discharge of the buffer storage with the aim of maintaining high temperatures as long as possible and cooling down the medium as quickly as possible and as low as possible.
  • the invention is therefore based on the object to provide a method and a device for its implementation, which afford such a discharge and yet can be realized with minimal changes from the current standard of regulations and components. It is solved with the features of the independent claims by connecting the mixer of a high-temperature circuit with at least two of its inputs directly connected to different heights of the buffer memory terminals and upstream of the mixer of one or more low-temperature circuits.
  • a maximum setpoint function is described, which ensures that the downstream mixing circuits are supplied with a sufficiently high temperature level at all times. Due to the gravitational stratification, however, at the same time it is ensured that only as little as necessary is a possibly present higher temperature level accessed.
  • the mixer is controlled solely by its flow temperature by an actuator by means of a 3-point signal, which represents a simple and commercially available form.
  • Another useful application of the invention is to integrate this control into a peak load heat source. It is installed in the drain of the upstream mixer and connected to the mixer control so that its firing is activated only when the mixing valve is fully open to the top of its buffer tank connections.
  • the only part of the buffer store that is charged with fossil-generated heat is the top zone for domestic hot water production.
  • Charging takes place via the connection of a charge pump in the heat source supply, which conveys heated water to the topmost buffer tank connection, which is still above the buffer tank connections, which are connected to the upstream mixing valve.
  • the upstream mixer is fully opened to the top of its buffer connections to perform the charging process with the lowest possible fuel input.
  • the charging circuit is locked in the idle state via gravity brakes or backflow preventer.
  • Figs. 1 to 9 show hydraulic circuit diagrams and Fig. 10 shows a control circuit diagram of a heating system.
  • the Schuttingsanläge 1 according to Figure 1 has essentially five elements, namely a service water buffer 2, a gasbe
  • Circulated water heaters 3 a mixing valve device 4, a high-temperature heating branch 5 and a low-temperature heating branch 6, all of which are connected to each other via a plurality of pipelines.
  • the hot water tank 2 is formed by an upright standing vessel 59 through the top 7 a provided with a valve 8 service water pipe 9 goes off.
  • An interior 10 of the vessel 59 is subdivided by a step insert 11 which separates a service water space 12 from a heating water space 13.
  • the lower portion 60 of the hot water room 12 enclosing a heat exchanger coil 15 is arranged, which is connected with its two ends 16 and 17 to a series connection of a solar collector 18 with a charge pump 19.
  • the service water buffer memory 2 has four further connections 20, 21, 22 and 23, of which the highest connection 20 is connected to a line 27 leading via a connection 24 of an external priority switching valve 25 to a circulating water heater supply 26.
  • a circulating water heater return 30 leading to a heat exchanger 29 of the circulation water heater 3 heated by a burner 28 is indirectly connected to the next lower connection 21 by a line 31 via a series connection of an internal return changeover valve 32 which is capable of assuming a multiplicity of possible intermediate positions besides its two end positions , thus having a mixing function, connected to a circulation pump 33.
  • a fuel, preferably gas supply line 61 to the burner 28 is provided with a solenoid valve having a burner control 62 and the circulation pump 33 with a motor 63. Both switching valves 25 and 32 have an actuator 64 and 65, respectively.
  • a side wall On a side wall
  • two temperature sensors 66 and 67 are arranged at different heights and a further temperature sensor 68 is arranged on the circulating water supply line 26, all of which are connected via sensor lines 69 to a controller 70.
  • a setpoint is given to the controller 70 via a setpoint generator 71, namely the size of a temperature difference (between the values of the temperature sensors 66 and 67).
  • the controller 70 acts via control lines 72 on the control valve of the burner control 62 and the actuators 64 and 65 and the motor 63 a.
  • the circulating pump 33 may moreover have a pressure regulator which measures the differential pressure via the pump 33 in the lines 26/31 with a sensor, compares with a presettable at a setpoint generator on the controller value and regulates to a differential pressure of about 2oo mbar corresponding to 2m water column.
  • the mixing valve device 4 With the circulating water heater 26 is further connected via a connected to a further terminal 34 of the external Vbrrangumschaltventiles 25 line 35, the mixing valve device 4 directly via a check valve 73.
  • the line 35 passes through the mixing valve device 4, wherein in the mixing valve device 4 downstream of a line branch 36, a gravity brake or a backflow preventer or check valve 58 is located.
  • the at the output 38, in which there is a further inspection valve 73, from the mixing valve device 4 continuing line 35 leads to the Hochtemperatursammlungzweig 5, which consists of a parallel connection of a plurality of each provided with a thermostatic valve 39 radiators and / or convectors 40.
  • a return line 41 of the high-temperature heating branch 5 leads via a further inspection valve 73 to a branching point 42 arranged in the mixing valve device 4 and then continues via a pressure regulating valve 82 to a further branching point 43 and then to the connection 22 at the hot water storage tank 2.
  • the parallel connection of all radiators or convectors 40 is mit-
  • a line 46 provided with a gravity brake or a non-return valve or check valve 45 leads within the mixing valve device 4 to a first input (El) of the actual mixing valve 47 which can be actuated by a servomotor 37 and which has two further inputs (E2 and E3) , of which the entrance E3 is closed, but can be opened and used for other applications.
  • the input E2 is connected to the branching point 42 in the return line 41 via a gravity brake or a backflow preventer or check valve 55.
  • An output A of the actual mixing valve 47 is connected via a line 48 with a counter-current acting plate heat exchanger 49, which is part of the low-temperature heating branch 6.
  • the low-temperature heating branch 6 has on the secondary side a circuit 51, which consists of a series connection of a secondary side 52 of the plate heat exchanger 49 with one or more, each provided with a further thermostatic valve 39, Boden2020sch Siemens 53 with a circulation pump 54, the two further revision valves 73 are connected.
  • the temperature of the flow in the line 75 in the low-temperature heating branch 6 is measured by a temperature sensor 76.
  • the heating system of Fig. 1 with the buffer memory 2, which is regeneratively heated by way of example via a solar system 18 and in the interior 10 is a drinking water tank, has the following function: Due to the thermal expansion and gravity collects in lean, upright vessels, the hotter water above and the colder water below.
  • the buffer memory 2 has four terminals 20 to 23 located at different heights, so that a total of three temperature zones are created between every two of these terminals.
  • the aim of regenerative heat utilization must be to heat the topmost hot zone as quickly as possible and to keep it hot for as long as possible, while the lowest cold zone must be cooled down as quickly as possible and kept cold as long as possible.
  • a circulation water heater 3 with a switching valve (RUV) 32 designed as a mixing valve for domestic hot water preparation in its return therefore has an external second changeover valve (VUV) 25 downstream, which now in the domestic hot water preparation is the uppermost connection 20 of the buffer 2 with the flow 26 of the Circulation water heater 3 connects, so that the hot zone can be heated as quickly as possible.
  • VUV second changeover valve
  • the fuel-based heat is introduced only in the uppermost hot zone of the buffer memory 2, which thereby reaches the required minimum temperature as quickly as possible. This is measured by the hot water storage temperature sensor 66, which is mounted between the two uppermost ports 20 and 21.
  • the circulation water heater 3 goes into heating mode and the changeover valve (VUV) 25 is switched over by the controller 71.
  • VUV changeover valve
  • two heating circuits, a low-temperature 5 and a high-temperature heating circuit 6 are to be supplied. The here shown 23.m.03
  • special multi-way mixing manifold 4 has three connections to the heat generators and uses the return line 41 of the high-temperature circuit 5 as a flow 48 for the system separation of the low-temperature circuit.
  • the uppermost connection of the mixing valve device 4 is connected in heating operation via the changeover valve (VUV) 25 to the flow 26 of the circulating water heater 3.
  • VUV changeover valve
  • Its built-in pump 33 transports the hot supply water via a gravity brake or a rinseverhinderer 58 in the flow of the high temperature circuit 5.
  • a parallel to its heating surfaces 40 pressure-controlled overflow valve 74 can ensure the minimum circulation and the differential pressure across the heating surfaces 40 and the low-temperature mixing valve 47 to typical l-2mWS or 100-200mbar limit.
  • a differential pressure-controlled pump 33 'in the circulating water heater 3 can be used. From the return of the high-temperature circuit, the still warm heating water passes through a second pressure-controlled overflow valve to the middle connection of the mixing valve 47 and from there to the third upper buffer memory connection 22.
  • This pressure-controlled overflow valve generates about a pressure drop of 0.6mWS or 60mbar, which also the heating water without further pump flow through the system separation.
  • the 3/2-way mixing valve has three inputs El to E3 and an output A: El connects the output to the hot flow 30 from the circulating water heater 3, E2 with the pressure-side part high-temperature return 41 and the input E3 is permanently closed, so that the valve in this position interrupts the flow of water to the outlet.
  • the actuator of the 3/2-way mixing valve is controlled via a conventional 3-point signal, which regulates the flow temperature behind the system separation. While the unneeded excess of the high-temperature return flows back to the third uppermost buffer store connection via the pressure-controlled overflow valve, the cold return from the system separation of the low-temperature circuit returns to the lowest buffer store connection 23.
  • the circulating water heater usually has a control with at least one integrated flow sensor (VFint), an outside temperature sensor (AF) and a WWSF as sensors and a burner control with fuel valve, an actuator of the switching valve RUV and the integrated circulation pump 33 as actuators.
  • VFint integrated flow sensor
  • AF outside temperature sensor
  • WWSF burner control with fuel valve
  • RUV actuator of the switching valve
  • RUV integrated circulation pump 33
  • the desired value of the flow temperature control is usually derived depending on the weather by means of a heating curve from the outside temperature, which is also usually time-dependent.
  • another control loop with a second heating curve and a second flow sensor is added, which is controlled by a 3-point signal and the actuator of the mixing valve in its flow temperature.
  • the invention is to use the now useless switching valve RUV as a mixing valve in the return (RMV) of the circulation water heater and thereby use economically.
  • the actuator already allows a variety of intermediate positions, such as stepper motors.
  • the circulating water heater with its return can access a mixture of the second uppermost buffer connection and the high-temperature circuit return or the third uppermost buffer connection and thereby also regulate its own flow temperature in a lowering manner.
  • the process water storage space 12 is omitted within the step insert 11, the service water is heated in a continuous process by a pipe connecting the lines 9 and 14 81.
  • the domestic hot water preparation takes place here via the helical tube heat exchanger 81 lying in the buffer storage 3, for example made of stainless steel corrugated pipe. Even such combination buffers are widely used.
  • the low temperature mixer 47 is exemplified as a 3x4 multi-way mixing manifold without system separation. Its 3/3-way mixer supplies the low-temperature feed either from a mixture of hot circulation water heater feed 35 with warm high-temperature return 41 or from warm high-temperature return 41 with cold low-temperature return 50. The difference resulting from different water flows can flow in both directions to the middle of the three lower buffer ports 22.
  • This method of heat removal is also a patent pending (DP 102 45 572.4) and ensures by two-zone discharge for the described rapid cooling of the lowest cold zone with simultaneous extension of the service life of the middle hot zone of the buffer memory. 2
  • the service water storage space 12 is again present, but the line 41 is omitted, the line 50 is led to a junction 83 downstream of the pressure control valve 82 into the line 41.
  • Fig. 3 shows a further embodiment, a buffer memory 3 with internal domestic hot water tank.
  • the low-temperature circuit 6 is supplied via a 2x4 multi-way mixing manifold.
  • this also uses the high-temperature circuit return 41 to supply the system separation of the low-temperature circuit 6 with the already described 3/2-way valve, but in contrast to the 3x4 valve only two connections to the heat generators, by the middle and the lower Connecting the 3x4-jet merges to a common port.
  • This method of heat extraction is also a patent pending (DP 102 45 571.6). Due to its only two ports, this distribution device is particularly suitable for buffer memory, which have only three ports and consequently can not be operated in the heating operation on the described two-zone discharge. The second lowest connection of the buffer can therefore be omitted.
  • FIG. 4 shows the possibility that the circuit according to FIG. 2 can be combined with the simplified version of the piping according to FIG. 3 and that the plate heat exchanger 49 can be dispensed with if the otherwise closed input E3 is connected to a junction 84 in FIG the line 50 is connected.
  • Fig. 4 shows as another embodiment again a buffer memory 2 with an integrated tube coiled heat exchanger 81 for domestic hot water preparation.
  • the low-temperature mixer 47 is shown by way of example as a 2x4 multi-way mixing manifold without system separation. Its 3/3-way mixer supplies the low-temperature feed either from a mixture of hot circulating water heaters.
  • the service water buffer 2 is formed as a stratified storage and the lines 31 and 41 are equipped with a larger height with outlet openings 84, 85 provided muzzle tubes 86 and 87.
  • FIG. 5 finally shows an embodiment in which the internal change-over mixing valve 32 of the circulating water heater 3 is used as a reflux mixing valve with only a single heating circuit.
  • the buffer memory 2 suction and mouth tubes 101 and 103 are shown with devices 102 and 104 for breaking the mechanical pulse, which is why such buffer memory are also called layer memory.
  • the control device 70 From the control device 70 then eliminates the measuring and control device of the low-temperature circuit 6. Since this simpler case describes the standard, it is customary to distribute these components as expansion accessories of the scheme.
  • FIGS. 6 to 9 Shown here are the same heat distributions as previously in FIGS. 1 to 4, wherein in FIG Contrary to these here no circulating water heater 3 is required for reheating, which is especially in connection with pellet boilers and heat pumps on compression basis of practical importance. Especially with heat pumps, care must be taken to ensure a careful handling of hot water, as the thermodynamic efficiency of these machines decreases sharply with increasing flow temperature. It is therefore of interest to access only the lowest possible connection 21 of the buffer store 2 during the removal of heat and, in the first place, to extract all usable heat from the lower heating zone at a lower temperature level.
  • Fig. 6 shows, for example, a buffer memory 2 with four terminals, the domestic hot water is made via a conventional external heat exchanger station.
  • the 3-way mixer 32 upstream of the 3x4 multi-way mixing manifold 47 supplies the high-temperature circuit 5 with a mixture of the second-highest buffer connection 21 with the high-temperature return 41.
  • the pump 33 connected downstream of the 3-way mixer conveys the heating water through the 3x4 multi-way mixing manifold 47 so that it is also available to the 3/2-way valve as a hot flow at its input El.
  • the differential-pressure-controlled overflow valve typically: 0.6mWS or ⁇ Ombar
  • warm high-temperature return 41 is also available at input E2 of the 3/2-way valve.
  • the system separation at the output A of the 3/2-way valve is thus again supplied without primary pump either from a mixture of these two temperatures (3-way mixture) or from the throttled high-temperature return alone (2-way throttling).
  • the differential pressure-controlled overflow valve in the high-temperature circuit limits the differential pressure across the 3/2-way valve, which can also be achieved with a differential pressure-controlled pump 33 in the high-temperature circuit.
  • the difference-temperature switching valve 77 shown in the return to the lowest buffer memory port 23 is only an option and is not part of the invention.
  • Fig. 7 shows as another embodiment, the same politicianser- zeuger- and buffer memory arrangement, the 3x4 multi-way mixing manifold 4 the low temperature circuit 6 without system separation via its 3/3-way mixer 47 either a mixture of hot water from the second-highest Buffer storage port 21 supplied with the high-temperature return 41 or from a mixture of high-temperature return 41 with low-temperature return 50.
  • the high-temperature circuit pump 33 of the mixing device can be followed.
  • the high-temperature circuit 5 can be separately switched on and off by the controller 70 by switching off its pump 33 independently of the respective setpoint.
  • FIG. 8 shows a 2x4 multi-way mixing manifold 4 as a low-temperature mixing and distribution device.
  • the two lower connections of the 3 ⁇ 4-jet multipath mixing manifold are combined to form a common connection led out.
  • Fig. 8, however, in contrast to Fig. 3 shows the connection to a buffer with four terminals. The connection of a buffer with only three connections was thus analogous to FIG. 3.
  • FIG. 9 finally shows as a low-temperature mixing and distribution device a 2x4 multi-way mixing manifold.
  • the two lower connections of the 3 ⁇ 4 multiway mixing distributor are brought out together to form a common connection.
  • Fig. 9, however, unlike Fig. 4 shows the connection to a buffer with four terminals. The connection of a buffer with only three connections was thus analogous to FIG. 4.
  • the structure of the regulator 70 is shown in FIG. 10 as follows: An outside temperature sensor 86 is connected via a line 87 both to a heating curve former 88 for the high-temperature heating branch 5 and to a second (or further) heating curve former 89 for the low-temperature heating branch 6 from the actual value of the outside temperature, form setpoint values for the flow temperatures. These are shifted in parallel by a timer 90 via a line 91 (lowered). The outputs of the two heating curves 88 and 89 are connected to a discriminator 92 which selects the higher or highest of the pending setpoints from the one or more heating curves 88-89.
  • the output of the discriminator 92 each forms an input of one of the individual controllers 93 to 95, of which the individual controller 93 is a proportional controller, which makes the Characteristics 96 identifies, while the single controller 94 is a three-point controller, which makes the Characteristics 97 makes recognizable and the single controller 95th another three-point controller is what makes the Characteristics 98 recognizable.
  • the output of the individual regulator 93 is connected to the Benner control 62, the output of the individual regulator 94 is connected to the drive 64 of the internal change-over mixing valve 32 of the circulating water heater 3 and the output of the individual regulator 95 is connected to the drive 99 of the internal actual mixing valve 47.
  • the controller just described has the following function: How to modify the existing control of the circulating water heater 3, Fig. 10. From the outside sensor AF 86, the outside temperature reaches the two time-dependent heating curves 88 and 89 of the high and low temperature circuits 5 and 6, with the two time and outside temperature-dependent setpoint values of the respective flow temperature are calculated. While the setpoint of the low temperature circuit 6 directly compared with the actual value and the control deviation via a 3-point signal acts on the low-temperature circuit mixing device, the setpoint of the high-temperature circuit 6 is first adjusted via a maximum function in the discriminator 92 with the setpoint of the low-temperature circuit 6 , This function only passes the maximum value of all inputs to the output of two or more input signals.
  • the return mixing valve 32 as an upstream mixing valve not only affects the flow temperature of the high-temperature circuit 5, but also the flow temperature of the downstream low-temperature circuit 6 and its mixing device 47.
  • the setpoint of the high-temperature circuit 5 would be smaller than that of the low-temperature circuit, depending on the time 6, the downstream low temperature circular mixer 47 would no longer be able to meet the requirement of its circuit.
  • the maximum function ensures that the requirement of the downstream mixing circuit is taken into account from the outset. This expressly applies to several downstream low-temperature circuits.
  • the maximum setpoint thus formed reaches the controller 94, which controls the mixing valve 32 by means of a 3-point signal 97 and controls the burner 28 of the circulating water heater 3 via a proportional signal shown here as an example for a modulating system , in which
  • ⁇ ⁇ -c9f7hlatt is ensured by a suitable release that initially 2 by removing the mixing valve 32, the buffer memory 2 existing regenerative heat is removed before using new fuel in the circulating water heater 3.
  • the particular economic benefit of the invention is thus to describe a method and a device that make it possible to use regenerative heat as efficiently as comfortable using components that are already included today in some of the large-scale products (circulating water heater), what greatly increases their economic benefits.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Water Supply & Treatment (AREA)
  • Fluid Mechanics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Steam Or Hot-Water Central Heating Systems (AREA)
  • Domestic Hot-Water Supply Systems And Details Of Heating Systems (AREA)
  • Heat-Pump Type And Storage Water Heaters (AREA)

Abstract

L'invention concerne un procédé de régulation d'un dispositif de chauffage (1) comportant un réservoir tampon (2) pouvant être chauffé par une première source de chaleur régénérative (18) et par un chauffe-eau à circuit fermé comportant une vanne de mélange interne (32) disposée côté retour et une pompe de recirculation (33) disposée en aval de la vanne. Le dispositif de chauffage comporte également une branche de chauffage haute température (5) et une branche de chauffage basse température (6) alimentée au moyen d'un système de vanne de mélange (4). Des valeurs réelles de la température de canalisation montante du chauffe-eau à circuit fermé (3), de la température de canalisation montante d'au moins une branche de chauffage (6) et de la température extérieure sont prises en compte en tant que valeur de consigne, et en cas d'écart de régulation, la vanne de mélange interne (32) disposée côté retour est d'abord réglée et lors de l'atteinte de la position finale de la vanne, l'apport de chaleur en provenance du chauffe-eau à circuit fermé (3) est augmenté face à des besoins en chaleur accrus.
PCT/DE2009/000144 2008-01-28 2009-01-28 Dispositif de chauffage WO2009095010A2 (fr)

Priority Applications (1)

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DE112009000754T DE112009000754A5 (de) 2008-01-28 2009-01-28 Heizungsanlage

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DE102008006907 2008-01-28
DE102008006907.8 2008-01-28
DE102008007331 2008-02-01
DE102008007331.8 2008-02-01

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WO2009095010A2 true WO2009095010A2 (fr) 2009-08-06
WO2009095010A3 WO2009095010A3 (fr) 2010-07-15

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2475311A (en) * 2009-11-11 2011-05-18 James Francis Broderick Central heating system including an insulated water storage tank
WO2013093246A1 (fr) * 2011-12-23 2013-06-27 Amzair Industrie Procédé de gestion d'un système de pompe à chaleur, système de pompe à chaleur, et installation de chauffage comprenant un tel système

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FR2952706B1 (fr) * 2009-11-13 2012-04-20 Atlantic Climatisation Et Ventilation Generateur de chaleur pour le chauffage d'un fluide caloporteur destine au chauffage domestique et a la production d'eau chaude sanitaire
KR101105561B1 (ko) * 2010-05-13 2012-01-17 주식회사 경동나비엔 태양열 시스템
DE102010023777B4 (de) 2010-06-15 2019-06-19 Oliver Nick Verfahren zum Betreiben einer Heizungsanlage
WO2012031847A2 (fr) * 2010-09-09 2012-03-15 John Bergin Système de régulation de chauffage
DE102012024586A1 (de) * 2012-12-17 2014-06-18 Meibes System-Technik Gmbh Mehrkreisige Heizungs- oder Kühlanlage mit Mehrwegemischventil und Einrichtung zum Steuern und/oder Regeln für eine mehrkreisige Heizungs- oder Kühlanlage
DE102012024583A1 (de) * 2012-12-17 2014-06-18 Meibes System-Technik Gmbh Mehrkreisige Heizungs- oder Kühlanlage mit Pufferspeicher, Einrichtung zum Steuern und/oder Regeln für eine mehrkreisige Heizungs- oder Kühlanlage mit Pufferspeicher und Verfahren zum Betreiben einer mehrkreisigen Heizungs- oder Kühlanlage mit Pufferspeic
GB201302761D0 (en) * 2013-02-18 2013-04-03 Ideal Boilers Ltd Water heating apparatus
DE102013111185A1 (de) * 2013-10-09 2015-04-09 Xylem Ip Holdings Llc Verfahren zum Betreiben eines Pumpaggregates, Pumpaggregat sowie dessen Verwendung
ITUA20161636A1 (it) * 2016-03-14 2017-09-14 Riello Spa Impianto termico integrato multisorgente
AT523184B1 (de) * 2020-03-13 2021-06-15 Hargassner Gmbh Heizungsanlage

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DE19642721A1 (de) * 1995-10-18 1997-04-24 Guillot Ind Sa Anschlußvorrichtung für einen geregelten Heizkessel zur Speisung und Regelung von zwei Heizkreisläufen
DE19547054A1 (de) * 1995-12-18 1997-06-19 Trillitzsch Harald Schichten-Pufferspeicher mit Kurzschlußkammern für einen oder mehrere Heizkreise, besonders an Heizungsanlagen mit Brennwertkesseln
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DE20305438U1 (de) * 2003-04-04 2004-04-08 Albert, Traugott Sammel- und Verteileinrichtung

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2475311A (en) * 2009-11-11 2011-05-18 James Francis Broderick Central heating system including an insulated water storage tank
WO2013093246A1 (fr) * 2011-12-23 2013-06-27 Amzair Industrie Procédé de gestion d'un système de pompe à chaleur, système de pompe à chaleur, et installation de chauffage comprenant un tel système
FR2984999A1 (fr) * 2011-12-23 2013-06-28 Amzair Procede de gestion d'un systeme de pompe a chaleur, systeme de pompe a chaleur, et installation de chauffage comprenant un tel systeme

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DE102009007053A1 (de) 2009-08-06
DE112009000754A5 (de) 2010-12-30

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