DE29905726U1 - Component for domestic hot water temperature control in water heating systems - Google Patents

Component for domestic hot water temperature control in water heating systems

Info

Publication number
DE29905726U1
DE29905726U1 DE29905726U DE29905726U DE29905726U1 DE 29905726 U1 DE29905726 U1 DE 29905726U1 DE 29905726 U DE29905726 U DE 29905726U DE 29905726 U DE29905726 U DE 29905726U DE 29905726 U1 DE29905726 U1 DE 29905726U1
Authority
DE
Germany
Prior art keywords
component
differential pressure
drinking water
temperature
temperature control
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
DE29905726U
Other languages
German (de)
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.)
NESTKE
FROMME
Original Assignee
NESTKE
FROMME
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 NESTKE, FROMME filed Critical NESTKE
Priority to DE29905726U priority Critical patent/DE29905726U1/en
Publication of DE29905726U1 publication Critical patent/DE29905726U1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • F24D10/00—District heating systems
    • 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
    • F24D19/1069—Arrangement or mounting of control or safety devices for water heating systems for the combination of central heating and domestic hot water regulation in function of the temperature of the domestic hot water
    • 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]
    • Y02B30/17—District 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
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E20/00—Combustion technologies with mitigation potential
    • Y02E20/14—Combined heat and power generation [CHP]

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)
  • Control Of Combustion (AREA)

Description

BeschreibungDescription

Zusatzbauteil fürAdditional component for

Gebrauchswarmwasser-Domestic hot water

bereitungsanlagenpreparation plants

Dr. Ing. Matthias Krause
Dr. Ing. Claudius Nestke
Dipl. Ing. Wolfgang Albrecht
Dipl. Ing. Bernhard Fromme
Dipl. Ing. Knut WehrDr. Ing. Matthias Krause
Dr. Ing. Claudius Nestke
Dipl. Ing. Wolfgang Albrecht
Dipl. Ing. Bernhard Fromme
Dipl. Ing. Knut Wehr

1. Stand der Technik1. State of the art

Die Trinkwarmwasserbereitung in Fernwärmestationen und Kesselanlagen wird entsprechend dem Stand der Technik bei Durchflußsystemen in der Art realisiert, daß die Trinkwarmwassertemperatur durch Motorregelventile auf der Heizwasserseite geregelt wird. Schwankungen der Trinkwassertemperatur insbesondere bei schnellen Änderungen der benötigten Trinkwarmwässermenge sind durch die Motorstellventile auf der Heizwasserseite nicht zu beherrschen. Es treten relativ große Schwankungen der Trinkwassertemperatur auf. Aus diesem Grunde werden oft zusätzlich Pufferspeicher eingesetzt, was zu erhöhten Kosten fuhrt.The preparation of hot drinking water in district heating stations and boiler systems is implemented in accordance with the state of the art in flow systems in such a way that the hot drinking water temperature is regulated by motor control valves on the heating water side. Fluctuations in the drinking water temperature, particularly when there are rapid changes in the amount of hot drinking water required, cannot be controlled by the motor control valves on the heating water side. Relatively large fluctuations in the drinking water temperature occur. For this reason, additional buffer storage tanks are often used, which leads to increased costs.

2. zu lösende Aufgabe2. Task to be solved

Es ist das Ziel des Gebrauchsmusters den Mängeln des Standes der Technik abzuhelfen und eine techn. Lösung zu finden, die für die Trinkwarmwasserbereitung im Durchflußsystem auch bei schnellen Änderungen der Trinkwarmwässermenge und der Heizwasserbedingungen eine Trinkwarmwassertemperatur mit geringen Temperaturschwänkungen auch ohne Pufferspeicher erreicht.The aim of the utility model is to remedy the shortcomings of the state of the art and to find a technical solution that achieves a drinking water temperature with low temperature fluctuations for the preparation of drinking water in the flow system even in the event of rapid changes in the amount of drinking water and the heating water conditions, even without a buffer tank.

3. Gestaltung des Gebrauchsmusters und erzielbare techn. Ergebnisse3. Design of the utility model and achievable technical results

Ausgehend vom Ziel der Erfindung wurde ein Bauteil entwickelt, welches durch Anordnung als Abzweig in der Vorlaufschiene ( gem. Anlage 1 ) unter alle Bedingungen und Schaltzuständen immer eine ausreichende Trinkwarmwassertemperatur mit geringen Temperaturschwankungen ohne Einsatz eines Pufferspeichers erreicht. Das Bauteil besteht aus einer Ventilkombination bestehend aus Motorstellventil mit difFerenzdruckgesteuertem Absperrventil und Sicherheitstemperaturbegrenzer ( 1), einen Differenzdruck-Überströmregler ( 2 ) und einem Wirkdruckgeber ( 3 ). ( Anlage 1 ) Das Motorstellventil ( 1 ) wird überBased on the aim of the invention, a component was developed which, by being arranged as a branch in the flow rail (as per Appendix 1), always achieves a sufficient domestic hot water temperature with minimal temperature fluctuations under all conditions and switching states without the use of a buffer tank. The component consists of a valve combination consisting of a motor control valve with differential pressure-controlled shut-off valve and safety temperature limiter ( 1 ), a differential pressure overflow regulator ( 2 ) and an effective pressure sensor ( 3 ). ( Appendix 1 ) The motor control valve ( 1 ) is controlled via

die DDC-Regelung in Abhängigkeit von der Rücklauftemperatur der Heizungsanlage des Gebäudes im Hub voreingestellt. Das Ventil ist gem. DIN 4747 mit einem Sicherheitstemperaturbegrenzer kombiniert. Der Differenzdruck-Überströmregler ( 2 ) wird über den Wirkdruckgeber ( 3 ) gesteuert. Als Wirkdruckgeber ( 3 ) wird eine modifizierte Disco-Rückschlagklappe mit einer nahezu linearen Kennlinie verwendet.The DDC control is preset in the stroke depending on the return temperature of the building's heating system. The valve is combined with a safety temperature limiter in accordance with DIN 4747. The differential pressure overflow controller ( 2 ) is controlled via the differential pressure sensor ( 3 ). A modified disco check valve with an almost linear characteristic curve is used as the differential pressure sensor ( 3 ).

Die in der Rückschlagklappe eingebaute Feder wird so ausgelegt, daß der in Abhängigkeit von der Trinkwarmwassermenge entstehende Differenzdruck den Differenzdruck-Überströmregler ( 2 ) entsprechend Kennlinie ohne Verzögerung öffnet.The spring installed in the check valve is designed so that the differential pressure that arises depending on the amount of hot drinking water opens the differential pressure overflow regulator ( 2 ) according to the characteristic curve without delay.

Über das voreingestellte Motorstellventil ( 1) und über den in Abhängigkeit von der Trinkwarmwassermenge geöffneten Differenzdruck-Überströmregler ( 2) wird Vorlaufwasser auf der Heizseite des Plattenwärmetauschers (4 ) zugeführt. Das Motorstellventil (1 ) übernimmt über die DDC-Regelung die Feinregelung der Trinkwarmwassertemperatur. Der Differenzdruck-Überströmregler ( 2 ) ist so einzustellen, daß die Zirkulationswassermenge mit ausreichender Temperatur umgewälzt werden kann.Supply water is supplied to the heating side of the plate heat exchanger (4) via the preset motor control valve (1) and the differential pressure overflow regulator (2) which is opened depending on the amount of hot drinking water. The motor control valve (1) takes over the fine control of the hot drinking water temperature via the DDC control. The differential pressure overflow regulator (2) must be set so that the amount of circulating water can be circulated at a sufficient temperature.

Da der Sicherheitstemperaturbegrenzer ( 5 ) nur auf das Motorstellventil ( 1 ) wirkt muß bei Einbau des Bauteils über die DDC-Regelung eine Rücklauftemperaturbegrenzung vorgesehen werden.Since the safety temperature limiter ( 5 ) only acts on the motor control valve ( 1 ), a return temperature limit must be provided when installing the component via the DDC control.

4. Anwendbarkeit4. Applicability

Das Gebrauchsmuster ist als Bauteil beim Bau von direkten und indirekten Heißwasserstationen und Kesselanlagen und zur Nachrüstung vorhandener Anlagen einsetzbar.The utility model can be used as a component in the construction of direct and indirect hot water stations and boiler systems and for retrofitting existing systems.

1 Motorstellventil mit differenzdruckgesteuertem Absperrventil und Sicheitieitstemperaturbegr.1 motor control valve with differential pressure controlled shut-off valve and safety temperature limiter.

2 Differenzdruck-Überströmregler2 differential pressure overflow regulators

3 Wirkdruckgeber3 Differential pressure sensors

4 Plattenwärmeübertrager4 plate heat exchangers

5 Sicherheitstemperaturbegrenzer5 Safety temperature limiter

6 Temperaturfühler Warmwasser6 Hot water temperature sensors

7 Differenzdruckregler7 Differential pressure regulator

Claims (1)

SchutzanspruchClaim for protection Bauteil zur Absicherung kleiner Trinkwarmwassertemperaturschwankungen in Trinkwarmwasserbereitungsanlagen mit Durchflußsystem dadurch gekennzeichnet, daß ein Bauteil, bestehend aus einem Motorventil mit differenzdruckgesteuertem Absperrventil und Sicherheitstemperaturbegrenzer ( 1 ), einem Differenzdruck - Überströmregler ( 2 ) und einem Wirkdruckgeber ( 3 ) zur heizwasserseitigeri Regelung der Trinkwarmwassertemperatur eingesetzt wird.Component for safeguarding against small fluctuations in the temperature of drinking water in drinking water preparation systems with a flow system, characterized in that a component consisting of a motor valve with differential pressure-controlled shut-off valve and safety temperature limiter (1), a differential pressure overflow regulator (2) and an effective pressure sensor (3) is used for regulating the temperature of the drinking water on the heating water side.
DE29905726U 1999-03-27 1999-03-27 Component for domestic hot water temperature control in water heating systems Expired - Lifetime DE29905726U1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE29905726U DE29905726U1 (en) 1999-03-27 1999-03-27 Component for domestic hot water temperature control in water heating systems

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE29905726U DE29905726U1 (en) 1999-03-27 1999-03-27 Component for domestic hot water temperature control in water heating systems

Publications (1)

Publication Number Publication Date
DE29905726U1 true DE29905726U1 (en) 1999-07-22

Family

ID=8071549

Family Applications (1)

Application Number Title Priority Date Filing Date
DE29905726U Expired - Lifetime DE29905726U1 (en) 1999-03-27 1999-03-27 Component for domestic hot water temperature control in water heating systems

Country Status (1)

Country Link
DE (1) DE29905726U1 (en)

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Legal Events

Date Code Title Description
R207 Utility model specification

Effective date: 19990902

R150 Utility model maintained after payment of first maintenance fee after three years

Effective date: 20021126

R151 Utility model maintained after payment of second maintenance fee after six years

Effective date: 20050926

R158 Lapse of ip right after 8 years

Effective date: 20071002