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DE19905495A1 - Limiting of heat input into heating plant, especially central heating plants with gas and/or oil firing - Google Patents

Limiting of heat input into heating plant, especially central heating plants with gas and/or oil firing

Info

Publication number
DE19905495A1
DE19905495A1 DE19905495A DE19905495A DE19905495A1 DE 19905495 A1 DE19905495 A1 DE 19905495A1 DE 19905495 A DE19905495 A DE 19905495A DE 19905495 A DE19905495 A DE 19905495A DE 19905495 A1 DE19905495 A1 DE 19905495A1
Authority
DE
Germany
Prior art keywords
heating
heat input
limiting
gas
temperature
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.)
Ceased
Application number
DE19905495A
Other languages
German (de)
Inventor
Joerg Scheunemann
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to DE19905495A priority Critical patent/DE19905495A1/en
Publication of DE19905495A1 publication Critical patent/DE19905495A1/en
Ceased legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24DDOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D19/00Details
    • F24D19/10Arrangement or mounting of control or safety devices
    • F24D19/1006Arrangement or mounting of control or safety devices for water heating systems
    • F24D19/1009Arrangement or mounting of control or safety devices for water heating systems for central heating
    • F24D19/1012Arrangement or mounting of control or safety devices for water heating systems for central heating by regulating the speed of a pump
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24HFLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H15/00Control of fluid heaters
    • F24H15/20Control of fluid heaters characterised by control inputs
    • F24H15/212Temperature of the water
    • F24H15/215Temperature of the water before heating
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24HFLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H15/00Control of fluid heaters
    • F24H15/30Control of fluid heaters characterised by control outputs; characterised by the components to be controlled
    • F24H15/355Control of heat-generating means in heaters
    • F24H15/36Control of heat-generating means in heaters of burners
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/70Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating

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)

Abstract

The limiting of the heat input into a heating system has the heating burner blocked switched off when the heating return flow temperature exceeds an adjustable threshold and/or the temperature difference between the heating return flow and the heating outward flow falls below an adjustable threshold. Before the switch-off of the heating burner, time-wise, additionally or exclusively the speed of the circulating pump is reduced.

Description

Es ist heute Stand der Technik die Heizungsvorlauftemperatur, insbesonders bei Zentralheizungen, in Abhängigkeit von der Außentemperatur zu regeln. Die gewünschte Vorlauftemperatur wird mit Hilfe der sogenannten Heizungskennlinie und der gemessenen Außenlufttemperatur berechnet, und als Sollwert auf den Kesseltemperaturregler gegeben.The state of the art today is the heating flow temperature, especially at Central heating to regulate depending on the outside temperature. The desired The flow temperature is measured using the so-called heating curve and the measured Outside air temperature calculated and given as setpoint to the boiler temperature controller.

Der im Patentanspruch 1 angegebenen Erfindung liegt das Problem zugrunde, daß bei diesem Verfahren die tatsächlich über die installierten Heizkörper abgegebene Wärmemenge unberücksichtigt gelassen wird.The invention specified in claim 1 is based on the problem that with this Processes the amount of heat actually emitted via the installed radiators is ignored.

Im Extremfall kann es vorkommen, daß der gesamte Heizkreislauf auf der Solltemperatur gehalten wird, obwohl alle angeschlossenen Heizungsventile abgesperrt sind. Dies kommt insbesonders bei älteren Anlagen häufig vor, da die installierten Heizkörper erfahrungsgemäß überdimensioniert sind.In extreme cases it can happen that the entire heating circuit is at the set temperature is held, although all connected heating valves are shut off. This is coming especially in older systems, because experience shows that the installed radiators are oversized.

Dieses Problem wird mit denen im Patentanspruch 1 aufgeführten Merkmalen gelöst.This problem is solved with the features listed in claim 1.

  • - Abschaltung des Heizungsbrenners bei Überschreiten einer eingestellten Rücklauftemperatur.- The heating burner is switched off when a set one is exceeded Return temperature.
  • - Abschalten des Heizungsbrenners bei Unterschreiten einer eingestellten Differenztemperatur zwischen Vor.- u. Rücklauf.- The heating burner is switched off when the temperature falls below a set value Difference temperature between Vor.- u. Rewind.

Die mit der Erfindung erzielten Vorteile liegen insbesondere darin, daß ein übermäßiges Erwärmen des Heizungskreislaufes, über den tatsächlichen Bedarf hinaus, verhindert wird.The advantages achieved with the invention are in particular that an excessive Heating of the heating circuit, beyond the actual need, is prevented.

Eine weitere Ausbaumöglichkeit besteht darin, die in Patentanspruch 2 genannte Drehzahlverstellung der Heizkreispumpe in das System zu integrieren. Durch die Drehzahlabsenkung der Pumpe wird eine bessere Wärmeabgabe über die Heizkörper ermöglicht, und ein übermäßiges erwärmen des Heizkreislaufes ebenfalls verhindert.Another expansion possibility is that mentioned in claim 2 Integrate the speed adjustment of the heating circuit pump into the system. Through the Lowering the speed of the pump will give better heat dissipation through the radiators enables, and excessive heating of the heating circuit also prevented.

Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung dargestellt und wird im folgenden näher beschrieben.An embodiment of the invention is shown in the drawing and is in following described in more detail.

Fig. 1 Fühler Rücklauftemperatur. Dieser ist als Anlegefühler ausgeführt und wird an der Rücklaufleitung befestigt. Fig. 1 return temperature sensor. This is designed as a contact sensor and is attached to the return line.

Fig. 2 Fühler Vorlauftemperatur. Dieser Anlegefühler wird an der Vorlaufleitung befestigt. Fig. 2 flow temperature sensor. This contact sensor is attached to the flow line.

Fig. 3 Vergleicher auf Mindestrücklauftemperatur. Dieser wird mit Hilfe von Potentiometer (Fig. 8) auf eine Solltemperatur des Rücklaufes eingestellt, die nicht unterschritten werden darf. Auf diese Weise kann die Anlage auf die Güte der vorhandenen Gebäudeheizung eingestellt werden. Fig. 3 comparator on minimum return temperature. This is set using a potentiometer ( Fig. 8) to a set temperature of the return, which must not be fallen below. In this way, the system can be adjusted to the quality of the existing building heating.

Fig. 4 Vergleicher auf Temperaturdifferenz zu gering. Unterschreitet die Differenz (Vor./Rücklauf) eine mit Potentiometer (Fig. 9 ) eingestellten Wert, so wird die Brennerabschaltung aktiviert. Eine geringe Temperaturdifferenz läßt auf geschlossene Heizungsventile schließen. Fig. 4 comparator on temperature difference too low. If the difference (forward / return) falls below a value set with the potentiometer ( Fig. 9), the burner shutdown is activated. A small temperature difference indicates that the heating valves are closed.

Fig. 5 Vergleicher auf Höhe der Rücklauftemperatur. Überschreitet diese einen mit Potentiometer ( Fig. 10) eingestellten Wert, so wird die Brennerabschaltung aktiviert. Fig. 5 comparator at the level of the return temperature. If this exceeds a value set with the potentiometer ( Fig. 10), the burner shutdown is activated.

Fig. 13 Vergleicher auf Rücklauftemperatur < Vorlauftemperatur. Ist diese Situation gegeben so läßt das auf Brauchwassererhitzung schließen. In diesem Fall wird die Brennerabschaltung deaktiviert um ein schnelles Erhitzen des Brauchwassers zu ermöglichen. Das Potentiometer (Fig. 12) dient zum Abgleich dieser Funktion. Fig. 13 Comparator on return temperature <flow temperature. If this situation exists, this indicates that hot water has been heated. In this case, the burner shutdown is deactivated to enable the domestic water to be heated up quickly. The potentiometer ( Fig. 12) is used to adjust this function.

Fig. 6 Dieses Zeitglied wird bei aktivierter Brennerabschaltung für eine mit Potentiometer (Fig. 11) eingestellte Zeit gestartet und blockiert über Relais (Fig. 7) die vorhandene Brenneranteuerung. Fig. 6 This timer is started when the burner shutdown is activated for a time set with the potentiometer ( Fig. 11) and blocks the existing burner control via relays ( Fig. 7).

Fig. 14 Dieser Drehzahlsteller verringert bei Ansprechen der Vergleicher (Fig. 4 oder Fig 5 ) die Drehzahl der Heizkreispumpe, und ermöglicht eine verbesserte Wärmeabgabe im Heizsystem. Fig. 14 This speed controller reduces the speed of the heating circuit pump when the comparators ( Fig. 4 or Fig. 5 ) respond, and enables improved heat dissipation in the heating system.

Claims (2)

1. Begrenzung des Wärmeeintrages in eine Heizungsanlage insbesondere Zentralheizungsanlagen mit Gas- und/oder Ölbefeuerung, dadurch gekennzeichnet, daß der Heizungsbrenner blockiert (abgeschaltet) wird, wenn die Heizungsrücklauftemperatur einen einstellbaren Grenzwert überschreitet und/oder die Temperaturdifferenz zwischen dem Heizungsrücklauf, und dem Heizungsvorlauf einen einstellbaren Grenzwert unterschreitet.1. Limitation of the heat input into a heating system, in particular central heating systems with gas and / or oil firing, characterized in that the heating burner is blocked (switched off) when the heating return temperature exceeds an adjustable limit value and / or the temperature difference between the heating return and the heating flow one falls below the adjustable limit. 2. Begrenzung des Wärmeeintrages in eine Heizungsanlage nach Patentanspruch 1, dadurch gekennzeichnet, daß zeitlich vor Abschaltung des Heizungsbrenners zusätzlich oder ausschließlich die Drehzahl der Heizkreispumpe abgesenkt wird.2. limitation of the heat input into a heating system according to claim 1, characterized, that prior to switching off the heating burner additionally or exclusively the Speed of the heating circuit pump is reduced.
DE19905495A 1999-02-10 1999-02-10 Limiting of heat input into heating plant, especially central heating plants with gas and/or oil firing Ceased DE19905495A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19905495A DE19905495A1 (en) 1999-02-10 1999-02-10 Limiting of heat input into heating plant, especially central heating plants with gas and/or oil firing

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19905495A DE19905495A1 (en) 1999-02-10 1999-02-10 Limiting of heat input into heating plant, especially central heating plants with gas and/or oil firing

Publications (1)

Publication Number Publication Date
DE19905495A1 true DE19905495A1 (en) 2000-01-13

Family

ID=7897037

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19905495A Ceased DE19905495A1 (en) 1999-02-10 1999-02-10 Limiting of heat input into heating plant, especially central heating plants with gas and/or oil firing

Country Status (1)

Country Link
DE (1) DE19905495A1 (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9415089U1 (en) * 1994-09-17 1996-02-01 Robert Bosch Gmbh, 70469 Stuttgart Central heating system
DE29809513U1 (en) * 1998-05-27 1998-10-08 Hantzsch, Erhard, Dipl.-Ing. (TU), 02689 Sohland Extension / supplementary functional equipment for weather-dependent flow temperature controls in heating systems

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9415089U1 (en) * 1994-09-17 1996-02-01 Robert Bosch Gmbh, 70469 Stuttgart Central heating system
DE29809513U1 (en) * 1998-05-27 1998-10-08 Hantzsch, Erhard, Dipl.-Ing. (TU), 02689 Sohland Extension / supplementary functional equipment for weather-dependent flow temperature controls in heating systems

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OAV Publication of unexamined application with consent of applicant
OP8 Request for examination as to paragraph 44 patent law
8122 Nonbinding interest in granting licences declared
8131 Rejection