EP0194637B1 - Circuit pour commander une source de chaleur chauffée par combustible et chargeant un réservoir à eau sanitaire - Google Patents

Circuit pour commander une source de chaleur chauffée par combustible et chargeant un réservoir à eau sanitaire Download PDF

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Publication number
EP0194637B1
EP0194637B1 EP86103198A EP86103198A EP0194637B1 EP 0194637 B1 EP0194637 B1 EP 0194637B1 EP 86103198 A EP86103198 A EP 86103198A EP 86103198 A EP86103198 A EP 86103198A EP 0194637 B1 EP0194637 B1 EP 0194637B1
Authority
EP
European Patent Office
Prior art keywords
line
boiler
heating
circuit
controller
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.)
Expired - Lifetime
Application number
EP86103198A
Other languages
German (de)
English (en)
Other versions
EP0194637A3 (en
EP0194637A2 (fr
Inventor
Franz-Josef Rawe
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 BV
Original Assignee
Vaillant Austria GmbH
Nv Vaillant Sa
Joh Vaillant GmbH and Co
Vaillant GmbH
Vaillant SARL
Vaillant Ltd
SCHONEWELLE BV
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 Vaillant Austria GmbH, Nv Vaillant Sa, Joh Vaillant GmbH and Co, Vaillant GmbH, Vaillant SARL, Vaillant Ltd, SCHONEWELLE BV filed Critical Vaillant Austria GmbH
Priority to AT86103198T priority Critical patent/ATE67022T1/de
Publication of EP0194637A2 publication Critical patent/EP0194637A2/fr
Publication of EP0194637A3 publication Critical patent/EP0194637A3/de
Application granted granted Critical
Publication of EP0194637B1 publication Critical patent/EP0194637B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • 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
    • F24H15/10—Control of fluid heaters characterised by the purpose of the control
    • F24H15/174—Supplying heated water with desired temperature or desired range of temperature
    • 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
    • F24H15/20—Control of fluid heaters characterised by control inputs
    • F24H15/212—Temperature of the water
    • F24H15/219—Temperature of the water after heating
    • 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
    • F24H15/355—Control of heat-generating means in heaters
    • F24H15/36—Control of heat-generating means in heaters of burners

Definitions

  • the present invention relates to a circuit for driving a fuel-heated heat source that charges a domestic hot water tank.
  • a charging control circuit has become known from DE-B 2 321 548, in which the heat source conducts the water which it has heated via an actuator either via a line for space heating or via a line for heat exchange of a boiler.
  • a boiler controller for recording the hot water temperature a room controller for the room temperature, a boiler controller and a flame monitor are provided, all of which consist of electronic circuits not described further.
  • the drive circuit itself has three paths that are parallel to one another at an operating voltage source. The first path has the room controller, the second the boiler controller, the third the boiler controller. When connected in parallel, a fourth path is provided for the flame monitor.
  • the control circuit is designed so that the actuator for dividing the proportions of the heat source water for the boiler and for the room heating is influenced by the boiler controller and the room controller in such a way that the command of the boiler controller has priority over the command of the room controller, which with increasing heating of the Boilers of this burner output of the heat source, which is no longer required in full, are released by reversing the actuator for the room heating and the burner output is only reduced when the full burner output of the heat source is no longer required for the boiler heating and the room heating.
  • a heater for domestic and heating water has become known, which shows a temperature sensor in the domestic hot water tank, which is arranged in a branch connected in parallel.
  • a fuel-heated heat source is to be understood here to mean any type of boiler or circulating water heater, and an absorption heat pump could also be considered, it being possible for gas or oil to be provided as the fuel.
  • the heating circulation pump By actuating the summer / winter switch, for example, the heating circulation pump is put out of operation, the heating mixer is closed and, in the case of a burner control system, a solenoid valve or the like which closes the heating circuit is closed.
  • the heating mixer In the winter switch position, heating of both the domestic hot water tank and the heating system is enabled, with the domestic hot water tank generally having priority over the heating.
  • the boiler In known systems, the boiler is clocked, that is, controlled in a pulse pause mode. The boiler can therefore only have the operating states "full power" or "zero power".
  • a flow temperature controller is provided on the boiler, which keeps the flow temperature of the heating system constant for a preselectable operation in two-point behavior or leads according to a defined program (outside temperature), whereby the flow temperature sensor is a switching controller, the switching contact of which is both the heating circulation pump as well as switches the mixer into the corresponding states and simultaneously opens the gas solenoid valve.
  • the present invention has for its object to provide a circuit for controlling a fuel-heated heat source, in which the hot water tank with the maximum power of the heat source, the heating, however, can be acted upon both with the maximum power of the heat source and with continuous partial power.
  • summer / winter operation according to the state of the art should be possible without restrictions.
  • a burner 1 is shown only with respect to the heat source, which is supplied with gas via a gas line 2, two valves 3 and 4 being arranged in series in the gas line 2.
  • the valve 4 only knows the switching states "open” and “closed” and is controlled by an electromagnet 5, which receives a corresponding control signal on the line 6 from a controller 7.
  • the valve 3 is controlled by an electric servomotor 8, which is also connected to the controller 7 via a control line 9.
  • the motor 8 is designed so that the valve 3 can assume any continuous intermediate position, so that in addition to the full power of the burner 1, any possible continuously adjustable intermediate output can also be predetermined when the valve 4 is fully open via the valve 3.
  • the burner 1 heats a heat exchanger, not shown, be it a finned heat exchanger in a circulating water heater or a cast iron heat exchanger in a boiler to which return water is fed from a heating system and from which the flow water is drawn off with the aid of a pump, also not shown.
  • the flow line branches off once to a heating circuit containing a heating element and to a domestic hot water tank, of which only a temperature sensor 10 is shown, which is exposed to the storage water and which actuates a switch contact 11.
  • the switch contact 11 is closed when the domestic water in the storage tank has fallen below a preset temperature threshold, but is open when the domestic water is heated to the desired temperature.
  • a return line, not shown leaves the memory and opens into the return line from the heating system, both being connected again to the heat exchanger assigned to burner 1.
  • a line 12 extends from an operating voltage supply L, into which, in series, a mains switch 13 and a safety temperature limiter switch 14 are looped in and which leads to a branch point 15.
  • a parallel connection of three branches starts from the branch point, of which the first branch contains the line 16, the second branch contains a line 17 and the third branch contains a line 18.
  • the line 16 is connected via a plug-in connection 19 to the branching point 15, since the line branch of the line 16 is structurally combined with the domestic hot water tank, while the other two branches 17 and 18 are accommodated in the housing of the boiler.
  • the contact 11 is looped into the line 16, the line 16 leads to a plug 20 which leads to a counterpart 21.
  • a line 22 leads from the counterpart 21 to a branch point 23 and via a resistor 24 to the second connection N of the operating voltage source.
  • the line 18 is connected via an optocoupler 25 to the branch point 23, the optocoupler being connected in series with a resistor 26.
  • the optocoupler is switched so that its light-emitting diode lies on line 18.
  • a line 28 leads from the line 16 at a branching point 27, which lies between the plug 19 and the contact 11, and leads to a plug 29.
  • a contact 30 in the housing of the boiler to which the line 17 is connected with the interposition of a further optocoupler 31, in this case also in the current path of the diode of the optocoupler.
  • the optocoupler in series is a resistor 32, the connection facing away from the optocoupler leads to a contact 33.
  • a plug 34 Associated with this contact 33 is a plug 34, which is connected to the plug 20 via a line 36 provided with a summer / winter switch 35.
  • the phototransistor of the optocoupler 25 is connected to the operating voltage + UB via a resistor 37 and is connected to the controller 7 via a line 38. Another input of the controller 7 is formed by a line 39, which is also connected via a resistor 40 to the voltage source + UB, on the other hand in parallel to the phototransistor associated with the optocoupler 31.
  • the emitters of the phototransistors are located at the other pole of the voltage source UB.
  • a third input of the controller 7 is formed by a setpoint generator 41, which is connected to the controller via a line 42.
  • This setpoint generator can be used to specify a setpoint for the heating system, for example a variable flow temperature setpoint in the form of a heating curve if an outside temperature sensor is present.
  • an actual value transmitter 43 is provided, which is connected to the controller 7 via a line 44.
  • This can be a flow temperature sensor, so that in the controller part of the controller 7 the control deviation of the flow temperature can be determined from the sensor 41 to the setpoint from the sensor 41 and the gas valve 3 can be continuously adjusted to the actual value of the flow temperature to the setpoint align.
  • the switch 35 If the switch 35 is closed during winter operation, there is no change when the contact 11 is closed. If, on the other hand, the contact 11 opens after the hot water storage tank contents have been charged, the two contacts 33 and 21 are galvanically connected to one another by the contact 35. On the other hand, the two contacts 15 and 30 are electrically conductively connected to one another via the line 28, so that current flow occurs in the current filaments of the lines 17 and 18, that is to say both phototransistors of the optocouplers give signals to the lines 38 and 39 and thus to the Controller 7. Controller 7 negates the signal on line 38, which means that there is no hot water requirement.
  • the signal on line 39 causes the control to open valve 4 fully, valve 3, on the other hand, only to such an extent that the control deviation of the flow temperature, determined from the difference which is brought to zero by the sensors 41 and 43 . Accordingly, this means heating operation for the heat source and modulation of the burner output of the burner 1 with regard to the specified heat requirement. If the contact 11 responds again in this operating state by closing, the heating operation is interrupted and the charging of the storage device is initiated again with maximum output.
  • the storage charge operation and vice versa the modulation operation of the fuel-heated heat source is maintained during the heating operation during the transition from heating operation to hot water charging.
  • the modulation operation of the fuel-heated heat source is regularly suppressed in summer operation, that is to say when the heating system is out of operation. There is therefore no need to heat up the storage tank with a modulated output, nor is there a decay in the hot water storage tank charging with modulation operation.
  • the embodiment according to FIG. 2 differs from that of FIG. 1 only in the branch of the line 16.
  • the summer / winter switch 35 lies in the course of a line 50, which is connected by the plug 29 to a branching point 51 in the course of the line 16.
  • the switch 11 is inserted into the line section of the line 16 between the branch point 51 and a further branch point 52, from which a first line 53 leads to the plug 34, while the line 16 continues from the branch point 52 to the plug 20.
  • the function of the circuit according to FIG. 2 is otherwise identical to that according to FIG. 1.
  • the optocouplers 25 and 31 act as ammeters in the associated lines 17 and 18.

Claims (1)

1. Montage pour la commutation d'une source de chaleur (1) chauffant un accumulateur d'eau sanitaire et marchant sur un combustible, sur un récepteur comprenant un radiateur de chauffage, avec un sonde thermométrique (10) comprenant un contact (11) et logée dans l'accumulateur, et avec un régulateur de température pour le récepteur, trois branches (16, 17, 18) partant d'une source de tension (L), dont l'une comprend le contact (11) de la sonde thermométrique (10), la deuxième branche (17), un ampèremètre (31) pour le déblocage du régulateur de température (7, 41, 43) pour le chauffage, et la troisième branche (18), un autre ampèremètre (25) qui réagit sur l'état de commutation de la sonde thermométrique, la deuxième branche (17) comportant un commutateur (35) réglant la marche de la source de chaleur, et les deux ampèremètres étant conçus comme optocoupleurs.
EP86103198A 1985-03-15 1986-03-10 Circuit pour commander une source de chaleur chauffée par combustible et chargeant un réservoir à eau sanitaire Expired - Lifetime EP0194637B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT86103198T ATE67022T1 (de) 1985-03-15 1986-03-10 Schaltung zum ansteuern einer einen brauchwasserspeicher aufladenden brennstoffbeheizten waermequelle.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE8508175 1985-03-15
DE8508175U 1985-03-15

Publications (3)

Publication Number Publication Date
EP0194637A2 EP0194637A2 (fr) 1986-09-17
EP0194637A3 EP0194637A3 (en) 1988-08-10
EP0194637B1 true EP0194637B1 (fr) 1991-09-04

Family

ID=6778921

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86103198A Expired - Lifetime EP0194637B1 (fr) 1985-03-15 1986-03-10 Circuit pour commander une source de chaleur chauffée par combustible et chargeant un réservoir à eau sanitaire

Country Status (3)

Country Link
EP (1) EP0194637B1 (fr)
AT (1) ATE67022T1 (fr)
DE (1) DE3681187D1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202022000809U1 (de) 2022-03-31 2022-04-13 Gunter Tannhäuser Anlage zur Erzeugung von Heizwärme und Brauchwasser mit Nutzung von Solarstrom

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT405465B (de) * 1996-01-15 1999-08-25 Vaillant Gmbh Wasserheizungsanlage

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2307109A1 (de) * 1973-02-14 1974-08-29 Junkers & Co Heizgeraet fuer brauch- und heizwasser
CH556513A (de) * 1973-03-22 1974-11-29 Landis & Gyr Ag Verfahren zur regelung und ueberwachung einer heizanlage fuer raumheizung und brauchwarmwasser-aufbereitung mit einem gasbrenner.

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202022000809U1 (de) 2022-03-31 2022-04-13 Gunter Tannhäuser Anlage zur Erzeugung von Heizwärme und Brauchwasser mit Nutzung von Solarstrom

Also Published As

Publication number Publication date
ATE67022T1 (de) 1991-09-15
DE3681187D1 (de) 1991-10-10
EP0194637A3 (en) 1988-08-10
EP0194637A2 (fr) 1986-09-17

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