EP0608500A1 - Installation de chauffage avec accumulateur d'eau chaude et commande prioritaire pour l'accumulateur d'eau chaude - Google Patents

Installation de chauffage avec accumulateur d'eau chaude et commande prioritaire pour l'accumulateur d'eau chaude Download PDF

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Publication number
EP0608500A1
EP0608500A1 EP93118169A EP93118169A EP0608500A1 EP 0608500 A1 EP0608500 A1 EP 0608500A1 EP 93118169 A EP93118169 A EP 93118169A EP 93118169 A EP93118169 A EP 93118169A EP 0608500 A1 EP0608500 A1 EP 0608500A1
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EP
European Patent Office
Prior art keywords
boiler
hot water
hot
heating
water boiler
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.)
Granted
Application number
EP93118169A
Other languages
German (de)
English (en)
Other versions
EP0608500B1 (fr
Inventor
Eduard Lienert
Erhard Affolter
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.)
Electrowatt Technology Innovation AG
Original Assignee
Landis and Gyr Bussiness Support AG
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
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Application filed by Landis and Gyr Bussiness Support AG filed Critical Landis and Gyr Bussiness Support AG
Publication of EP0608500A1 publication Critical patent/EP0608500A1/fr
Application granted granted Critical
Publication of EP0608500B1 publication Critical patent/EP0608500B1/fr
Anticipated expiration legal-status Critical
Revoked 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
    • F24H15/20—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
    • F24H15/32—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
    • 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 invention relates to a heating system with a hot water boiler and priority circuit for the hot water boiler according to the preamble of claim 1.
  • the term priority circuit refers to the redirection of the hot water flow supplied by the boiler from the heating circuit to the boiler circuit during the duration of the heat demand of the hot water boiler.
  • the start and end of the heat requirement of the hot water boiler are closely related to the start and end of the hot water withdrawal from the hot water boiler, since, for example, when the hot water is started to be removed from the hot water boiler, a temperature drop in the hot water boiler can be determined by means of temperature sensors, which generally means that the boiler burner immediately is switched on. Because of the intermittent operation of the burner for the heating circuit, however, the burner can already be switched on at the beginning of the heating requirement of the hot water boiler.
  • the boiler water temperature is usually below the hot water temperature. This is the most common case in our latitudes, since the outside temperature often only requires a weak heating.
  • An instantaneous priority switch for the hot water boiler would immediately result in less hot boiler water going to the hot water boiler would be promoted. Delaying the redirection of the hot water flow from the boiler to the hot water boiler ensures that there is no cooling of the hot water in the hot water boiler at the start of the priority switching.
  • the boiler water temperature is usually above the required flow temperature for the heating circuit. If the priority switch for the hot water boiler was terminated immediately, this would mean that much too hot water would be pumped into the radiators. Delaying the redirection of the hot water flow from the boiler to the heating circuit means that the boiler water cools down somewhat by giving off heat to the process water in the boiler circuit before it is led into the heating circuit.
  • DE-OS 2524010 shows a heating system with priority circuit for a hot water boiler, in which a circulation pump supplies the heating circuit and a boiler loading pump supplies the boiler circuit with hot water from the boiler.
  • the redirection of the hot water flow from the boiler to the hot water boiler is brought about by delayed switching on of the boiler loading pump and simultaneous switching off of the heating circulation pump after the heating demand of the hot water boiler has started.
  • At the end of the priority switching there is a delayed redirection of the hot water flow from the boiler to the heating circuit by delayed switching on of the heating circulation pump and simultaneous switching off of the boiler loading pump.
  • delay elements which are designed as time switches are arranged individually or together at a location in the system which is not described in detail.
  • the heating system described is also designed for operation depending on the outside temperature.
  • DE-OS 3529814 also shows a heating system with priority circuit for a hot water boiler, a heating circulating pump and a boiler loading pump.
  • the excess heat in the boiler at the end of the priority circuit is dissipated from the boiler even faster by switching off the burner without delay at the end of the hot water withdrawal from the hot water boiler and switching on the heating circulation pump without delay. In this way, part of the excess heat in the boiler is given off to the heating circuit.
  • the boiler loading pump that has been running for the hot water boiler since the start of the heat demand is only switched off by a control element after a run-on time that begins with the end of the heat demand for the hot water boiler.
  • a changeover valve can also be used to divert the hot water flow from the boiler.
  • the use of a single pump is sufficient to supply the heating circuit or the boiler charging circuit.
  • the task is to create a heating system with a hot water boiler and priority circuit for the hot water boiler, in which both a sufficient heating of the boiler water at the beginning of the heating requirement of the hot water boiler and a sufficient cooling of the boiler water is ensured at the end of the heating requirement of the hot water boiler.
  • the solution uses an on-to-controlled changeover valve which is controlled by a control device in such a way that the diversion of the hot water flow from the boiler to the boiler circuit or to the heating circuit takes place with a delay.
  • open-closed switching valves with a controllable middle position are advantageously used.
  • switchover valves of this type must also have the mentioned central position, which can be controlled by a control device and in which the water flow is branched into both directions at the same time.
  • Such switching valves are available on the market today.
  • FIG. 1 shows a heating system with a boiler 1 and a heating circuit 4, each with a supply and a return line 2, 3, connected to the boiler 1.
  • the heating circuit comprises heating elements (radiators) which are not shown in detail.
  • a hot water boiler 5 is connected to the feed line 2 and to the return line 3, each with a boiler feed line and a boiler return line 6, 7.
  • a pump 8 which conveys the water flow from the heating circuit 4 and from the hot water boiler 5 back to the boiler.
  • An on-off controlled changeover valve 9 is installed in the flow line 2 in order to divert the hot water flow from the boiler 1 to the hot water boiler 5 or to the heating circuit 4.
  • the changeover valve 9 is preferably of the type which has a central position which allows the hot water flow from the boiler 1 to be branched in both directions at the same time, namely both to the hot water boiler 5 and to the heating circuit 4.
  • control device 10 is shown, from which a burner 11 for the boiler 1, the pump 8 and the changeover valve 9 are controlled.
  • the control device 10 uses temperature sensors 12, 13 to measure the boiler temperature and the boiler temperature and, with other temperature sensors (not shown), the outside temperature (weather) or the room temperature, depending on the type of control.
  • the control device 10 controls the heating system in a known manner, but in addition to the known control elements also contains other control elements, not shown.
  • a changeover valve 9 without a central position, these cause the burner 11 to be switched on without delay at the start of the heating process for the hot water boiler 5, but the open / closed changeover valve 9 only after a delay beginning with the start of the heat requirement for the hot water boiler 5 is switched to redirection of the hot water flow from the boiler 1 to the boiler circuit, and that at the end of the heating process for the hot water boiler 5, the burner 11 is switched off without delay, but the on-off controlled changeover valve 9 only after starting one that begins with the end of the heat requirement of the hot water boiler Run-on time for redirecting the hot water flow from boiler 1 to heating circuit 4 is switched. This ensures that the Boiler 1 Excess heat cannot trigger the safety temperature limiter of the boiler.
  • the pump 8, which is installed in the return line 3, runs as long as either the heating circuit 4 or the hot water boiler 5 report a heat requirement.
  • the pump 8 in the flow line 2, specifically in the section between the boiler 1 and the changeover valve 9.
  • the changeover valve 9 can also be installed in the return line 3.
  • a changeover valve 9 with a central position is used, the excess heat in the boiler 1 can be dissipated more quickly at the end of the priority switching.
  • the burner 11 is switched off without delay, but the open-closed switching valve 9 is simultaneously switched to the above-mentioned middle position in order to distribute the hot water flow from the boiler 1 to the boiler circuit and the heating circuit 4 .
  • the on-off controlled change-over valve 9 is finally switched over after a delay time beginning with the removal of the priority for the boiler circuit to redirect the hot water flow from the boiler 1 to the heating circuit 4.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Steam Or Hot-Water Central Heating Systems (AREA)
EP93118169A 1993-01-28 1993-11-10 Installation de chauffage avec accumulateur d'eau chaude et commande prioritaire pour l'accumulateur d'eau chaude Revoked EP0608500B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH240/93 1993-01-28
CH24093 1993-01-28

Publications (2)

Publication Number Publication Date
EP0608500A1 true EP0608500A1 (fr) 1994-08-03
EP0608500B1 EP0608500B1 (fr) 1997-05-07

Family

ID=4182486

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93118169A Revoked EP0608500B1 (fr) 1993-01-28 1993-11-10 Installation de chauffage avec accumulateur d'eau chaude et commande prioritaire pour l'accumulateur d'eau chaude

Country Status (3)

Country Link
EP (1) EP0608500B1 (fr)
DE (1) DE59306395D1 (fr)
DK (1) DK0608500T3 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT410134B (de) * 1999-07-07 2003-02-25 Vaillant Gmbh Wasserheizanlage
AT411391B (de) * 2001-08-13 2003-12-29 Vaillant Gmbh Verfahren zum betrieb einer adsorptionswärmepumpe
AT412120B (de) * 1999-07-07 2004-09-27 Vaillant Gmbh Wasserheizanlage
EP3835667A1 (fr) * 2019-12-13 2021-06-16 Techem Energy Services GmbH Procédé de commande d'une installation de chauffage et appareil de commande associé

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19925084C1 (de) * 1999-06-01 2000-07-27 Baelz Gmbh Helmut Wärmeversorgungsanlage, insbesondere zur Wärmeversorgung von Gebäuden

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3529814A1 (de) * 1985-07-02 1987-01-08 Landis & Gyr Ag Regelgeraet fuer eine heizungsanlage mit boiler-vorrangschaltung
NL8702989A (nl) * 1987-12-10 1989-07-03 Daalderop Bv Inrichting voor het regelen van een c.v.-installatie.

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3529814A1 (de) * 1985-07-02 1987-01-08 Landis & Gyr Ag Regelgeraet fuer eine heizungsanlage mit boiler-vorrangschaltung
NL8702989A (nl) * 1987-12-10 1989-07-03 Daalderop Bv Inrichting voor het regelen van een c.v.-installatie.

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT410134B (de) * 1999-07-07 2003-02-25 Vaillant Gmbh Wasserheizanlage
AT412120B (de) * 1999-07-07 2004-09-27 Vaillant Gmbh Wasserheizanlage
AT411391B (de) * 2001-08-13 2003-12-29 Vaillant Gmbh Verfahren zum betrieb einer adsorptionswärmepumpe
EP3835667A1 (fr) * 2019-12-13 2021-06-16 Techem Energy Services GmbH Procédé de commande d'une installation de chauffage et appareil de commande associé

Also Published As

Publication number Publication date
DE59306395D1 (de) 1997-06-12
EP0608500B1 (fr) 1997-05-07
DK0608500T3 (da) 1997-12-01

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