DE29613587U1 - Component for pressure maintenance in direct district heating stations - Google Patents

Component for pressure maintenance in direct district heating stations

Info

Publication number
DE29613587U1
DE29613587U1 DE29613587U DE29613587U DE29613587U1 DE 29613587 U1 DE29613587 U1 DE 29613587U1 DE 29613587 U DE29613587 U DE 29613587U DE 29613587 U DE29613587 U DE 29613587U DE 29613587 U1 DE29613587 U1 DE 29613587U1
Authority
DE
Germany
Prior art keywords
pressure maintenance
hot water
district heating
component
pressure
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
DE29613587U
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.)
FINK RAMON DIPL ING
Original Assignee
FINK RAMON DIPL ING
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 FINK RAMON DIPL ING filed Critical FINK RAMON DIPL ING
Priority to DE29613587U priority Critical patent/DE29613587U1/en
Publication of DE29613587U1 publication Critical patent/DE29613587U1/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
    • 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)
  • Measuring Fluid Pressure (AREA)
  • Pipeline Systems (AREA)
  • Resistance Heating (AREA)

Description

BeschreibungDescription

Dr. Ing. Claudius Nestke Bauteil für Druckhaltung in direktenDr. Ing. Claudius Nestke Component for pressure maintenance in direct

Dipl.-Ing. Ramon Fink FernwärmestaiionenDipl.-Ing. Ramon Fink District heating stations

Dipl.-Ing. Knut WehrDipl.-Ing. Knut Wehr

1. Stand der Technik1. State of the art

Fernwärmestationen mit Primärenergieträger Heißwasser (Heißwasserstationen) werden entsprechend dem Stand der Technik nach dem Prinzipschaltbild (Anlage 1) als „direkte Stationen" ohne Verwendung von Wärmeübertragern hergestellt und an Fernwärmeleitungen vorlauf- und rücklaufseitig angeschlossen.District heating stations with hot water as the primary energy source (hot water stations) are manufactured in accordance with the state of the art according to the schematic diagram (Appendix 1) as "direct stations" without the use of heat exchangers and are connected to district heating pipes on the supply and return sides.

Zur Einhaltung der sicherheitstechnischen Forderungen der DIN 4747, DIN 4751 und DIN 4752 werden zur Unterbrechung des Heißwasservolumenstromes Regeiventile mit Notstellfunktion (TÜV geprüft) eingesetzt. Die Auslösung dieser Ventile mit Notstellfunktion erfolgt bei Ansprechen des Sicherheitstemperaturwächters nach der Rücklaufbeimischung.In order to comply with the safety requirements of DIN 4747, DIN 4751 and DIN 4752, control valves with an emergency setting function (TÜV tested) are used to interrupt the hot water volume flow. These valves with an emergency setting function are triggered when the safety temperature monitor is activated after the return flow mixing.

Befindet sich das Regelventil mit Notstellfunktion im Vorlauf der Heißwasserstation, so muß der Rücklaufdruck des Fernwärmenetzes die Druckhaltung in der Hausanlage des nachgeschalteten Gebäudes sicherstellen. Entsprechend große Rücklaufdrücke im Fernwärmenetz sind erforderlich.If the control valve with emergency function is located in the flow of the hot water station, the return pressure of the district heating network must ensure that the pressure is maintained in the building's system in the downstream building. Correspondingly high return pressures in the district heating network are required.

Befindet sich das Regelventil mit Notstellfunktion im Rücklauf der Heißwasserstation, so muß der Vorlaufdruck des Fernwärmenetzes die Druckhaltung in der Hausanlage des nachgeschalteten Gebäudes übernehmen.If the control valve with emergency function is located in the return line of the hot water station, the flow pressure of the district heating network must maintain the pressure in the house system of the downstream building.

Eine Betätigung von Absperrventilen in der Vorlaufschiene der Heißwasserstation ist dann nicht zulässig. Ein Schließen dieser Armaturen würde ein Abschalten der Druckhaltung für das Gebäude bedeuten, was bei Rücklaufdrücken kleiner dem Sättigungsdruck in den oberen Heizkörpern zu Ausdampfung und Rückkondensation führen kann.It is then not permitted to operate shut-off valves in the flow line of the hot water station. Closing these valves would mean switching off the pressure maintenance for the building, which can lead to evaporation and recondensation if the return pressure is less than the saturation pressure in the upper radiators.

Für beide dargestellte Schaltzustände kann eine Druckhaltung für die nachgeschalteten Gebäude nur durch Schaltverbot von Armaturen entweder im Vorlauf oder im Rücklauf sichergestellt werden. Dies ist nach den oben angeführten DIN eine Verletzung des Grundprinzips einer Druckhaltung für Gebäudeheizungssysteme.For both switching states shown, pressure maintenance for the downstream buildings can only be ensured by prohibiting the switching of valves in either the flow or return. According to the DIN standards mentioned above, this is a violation of the basic principle of pressure maintenance for building heating systems.

2. Zu lösende Aufgabe2. Task to be solved

Es ist das Ziel des Gebrauchsmusters, den Mangeln des Standes der Technik abzuhelfen und eine technische Lösung zu finden, die für Heißwasserstationen direkter Bauart eine sichere, risikofreie und unabhängig von Schaitzuständen der Station funktionierende Druckhaltung für das nachgeordnete Hausnetz gewährleistet.The aim of the utility model is to remedy the deficiencies of the state of the art and to find a technical solution that ensures safe, risk-free pressure maintenance for the downstream domestic network for hot water stations of direct design that functions independently of the switching states of the station.

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

Ausgehend vom Ziel der Erfindung wurde ein Bauteil entwickelt, welches durch Anordnung in der Vorlauf- oder Rücklaufschiene der Heißwasserstation unter allen Bedingungen und Schaitzuständen in der Station und in der Hausanlage immer eine ausreichende Druckhaltung sicherstellt.Based on the aim of the invention, a component was developed which, by being arranged in the flow or return rail of the hot water station, always ensures sufficient pressure maintenance under all conditions and switching states in the station and in the house system.

Das Bauteil besteht aus einer Lochblende und zwei Kappenventilen und wird gemäß Anlage 1 (nur Voriaufschiene dargestellt) in die Vorlauf- oder Rückiaufschiene eingeordnet. Die Lochblende ist bezüglich ihres Lochdurchmessers so auszulegen, daß unter Beachtung der maximal zulässigen Leckagen des Regelventils mit Notstellfunktion und des erforderlichen Wasservoiumenausgleichs bei Temperaturänderung der Sättigungsdruck zuzüglich Sicherheitszuschlag in den Heizkörpern nicht unterschritten wird.
Die Druckhalteleitung ist nach DIN 4751 auszulegen.The component consists of a perforated plate and two cap valves and is arranged in the flow or return rail according to Appendix 1 (only the flow rail is shown). The perforated plate must be designed with regard to its hole diameter so that the saturation pressure plus safety margin in the radiators is not undercut, taking into account the maximum permissible leakage of the control valve with emergency function and the necessary water volume compensation when the temperature changes.
The pressure maintaining line must be designed according to DIN 4751.

Nach Einbau des Bauteils kann ohne sicherheitstechnisches Risiko die Abschaltung der Station vorlauf- oder rücklaufseitig erfolgen. Die Druckhaitung der Hausaniage des Gebäudes bleibt funktionstüchtig.After the component has been installed, the station can be switched off on the supply or return side without any safety risk. The pressure maintenance of the building's system remains functional.

4. Anwendbarkeit4. Applicability

Das Gebrauchsmuster ist als Bauteil beim Neubau von direkten Heißwasserstationen und zur Nachrüstung vorhandener Stationen bestimmt.The utility model is intended as a component for the construction of new direct hot water stations and for retrofitting existing stations.

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Claims (1)

&psgr; 9 w ^ w ^ψ 9 w ^ w ^ Scriuizanspruch "*Scriuiz claim "* Druckhaltung für Gebäudeheizungsaniagen bei Verwendung direkter Heißwasserstationen in Fernwärmenetzen dadurch gekennzeichnet, daß ein Bauteil, bestehend aus zwei Kappenventilen und einer Lochblende, in die Vorlauf- oder Rücklaufschiene der Heißwasserstation so eingebaut wird, daß unabhängig vom Schaltzustand von Armaturen in der Heißwasserstation die Druckhaltung der Gebäudeheizungsanlage gesichert ist.Pressure maintenance for building heating systems when using direct hot water stations in district heating networks, characterized in that a component consisting of two cap valves and a perforated plate is installed in the flow or return rail of the hot water station in such a way that the pressure maintenance of the building heating system is ensured regardless of the switching state of the fittings in the hot water station.
DE29613587U 1996-08-06 1996-08-06 Component for pressure maintenance in direct district heating stations Expired - Lifetime DE29613587U1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE29613587U DE29613587U1 (en) 1996-08-06 1996-08-06 Component for pressure maintenance in direct district heating stations

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE29613587U DE29613587U1 (en) 1996-08-06 1996-08-06 Component for pressure maintenance in direct district heating stations

Publications (1)

Publication Number Publication Date
DE29613587U1 true DE29613587U1 (en) 1996-12-05

Family

ID=8027471

Family Applications (1)

Application Number Title Priority Date Filing Date
DE29613587U Expired - Lifetime DE29613587U1 (en) 1996-08-06 1996-08-06 Component for pressure maintenance in direct district heating stations

Country Status (1)

Country Link
DE (1) DE29613587U1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2852673A1 (en) * 2003-03-17 2004-09-24 Baelz Gmbh Helmut Heat transfer station for heating building, has heat exchanger with inlet connection coupled to supply pipe and return connection coupled to collecting pipe, and heat delivery circuit including inlet pipe and return pipe

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2852673A1 (en) * 2003-03-17 2004-09-24 Baelz Gmbh Helmut Heat transfer station for heating building, has heat exchanger with inlet connection coupled to supply pipe and return connection coupled to collecting pipe, and heat delivery circuit including inlet pipe and return pipe

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Legal Events

Date Code Title Description
R086 Non-binding declaration of licensing interest
R207 Utility model specification

Effective date: 19970123

R156 Lapse of ip right after 3 years

Effective date: 20000601