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EP0543285B1 - Dispositif de transfert d'expansion dans des circuits de liquide - Google Patents

Dispositif de transfert d'expansion dans des circuits de liquide Download PDF

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Publication number
EP0543285B1
EP0543285B1 EP92119424A EP92119424A EP0543285B1 EP 0543285 B1 EP0543285 B1 EP 0543285B1 EP 92119424 A EP92119424 A EP 92119424A EP 92119424 A EP92119424 A EP 92119424A EP 0543285 B1 EP0543285 B1 EP 0543285B1
Authority
EP
European Patent Office
Prior art keywords
prechamber
expansion vessel
liquid
line
expansion
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
EP92119424A
Other languages
German (de)
English (en)
Other versions
EP0543285A1 (fr
Inventor
Schreter Roman
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.)
A Schwarz and Co
Original Assignee
A Schwarz and Co
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 A Schwarz and Co filed Critical A Schwarz and Co
Publication of EP0543285A1 publication Critical patent/EP0543285A1/fr
Application granted granted Critical
Publication of EP0543285B1 publication Critical patent/EP0543285B1/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
    • F24D3/00—Hot-water central heating systems
    • F24D3/10—Feed-line arrangements, e.g. providing for heat-accumulator tanks, expansion tanks ; Hydraulic components of a central heating system
    • F24D3/1008—Feed-line arrangements, e.g. providing for heat-accumulator tanks, expansion tanks ; Hydraulic components of a central heating system expansion tanks

Definitions

  • the invention relates to a device for expansion takeover and degassing of liquid circulation systems, in particular heating or cooling systems, with at least one expansion vessel, preferably in gas exchange with the atmosphere, into the liquid from the liquid circulation system via an inlet line, in which an on the operating pressure adjustable overflow valve is located, received and from the liquid is fed back to the liquid circulation system via a drain line and a pressure pump located therein, the feed and drain lines, which connect the expansion vessel to the liquid circulation system, open into an unpressurized prechamber, which is connected via a line is connected to the expansion vessel.
  • Such a device is known for example from EP-A1-0 292 814.
  • the prechamber is under system pressure during normal operation. The pressure only drops during the degassing phases, when the prechamber is connected to the expansion tank via a three-way valve.
  • EP-B1-0 313 599 describes a device in which water from the heating system is fed to the expansion vessel via an inlet line and is returned to the heating system via a separate outlet line. The water can be circulated in a cycle.
  • the object of the invention is to improve a device of the type mentioned at the outset in such a way that the oxygen uptake of the water is reduced and that the prechamber does not have to be brought up to the system pressure.
  • the prechamber the volume of which is smaller than the volume of the expansion vessel, is arranged at a lower level than the expansion vessel and in that the feed line opens into the prechamber above the discharge line.
  • the prechamber the volume of which is smaller than the volume of the expansion vessel, at a lower level than the expansion vessel is arranged, and that the inlet line opens into the prechamber above the outlet line, it is achieved that water with less gas content is pumped and thus the problem posed is solved.
  • the pressure and circulation pump continuously pumps liquid from the prechamber into the circulatory system and, with the appropriate dimensions, ensures that the operating pressure in the circulatory system is maintained, to which the overflow valve in the feed line to the prechamber is set.
  • at least part of the circulating liquid flows continuously through the overflow valve into the prechamber.
  • the circulation liquid temporarily more liquid passes through the overflow valve into the prechamber and thus into the expansion vessel than is pumped out of it by the pressure and circulation pump. This increases the liquid level in the expansion tank.
  • more liquid is conveyed from the expansion vessel via the prechamber into the circulatory system than flows into the expansion vessel via the overflow valve.
  • the liquid level in the expansion vessel drops again. All of this happens practically without fluctuations in the operating pressure in the circulatory system.
  • the amount of water delivered by the pump determines the flow through the valve.
  • the pressure circuit does not have to be monitored.
  • a variant of the invention provides that the prechamber is essentially prismatic or cylindrical and is aligned vertically and that the inlet line opens into the prechamber above the outlet line.
  • An advantageous embodiment of the invention provides that a lock is arranged between the prechamber and the expansion vessel, the lock being formed by a diaphragm valve.
  • the lock prevents or hinders the creation of an undesirable circuit between the prechamber and the expansion vessel, in which the warm water flows from the prechamber into the expansion vessel and at the same time cold water from the expansion vessel into the prechamber.
  • Another embodiment of the invention provides that the feed line ends with a vertically upwardly directed nozzle which is located within the prechamber.
  • Fig. 1 shows the diagram of a device according to the invention for a heating system
  • Fig. 2 shows a plan view of a lock
  • Fig. 3 shows a variant of the prechamber.
  • the circulation system of the heating system consists of: the boiler 1, the liquid line 2 (flow) or 2 '(return) and radiators (e.g. radiators) 3.
  • the liquid circuit is maintained (or supported) by a system circulation pump 25 ).
  • Filtered and softened tap water is preferably used as the heating or circulating liquid.
  • the inlet pipe connections 5 and the drain line 6 in the flow line 2 can be arranged relatively close behind the boiler 1 in order to use the thermal degassing.
  • connection is particularly suitable for water temperatures up to approx. 90 ° C. At higher operating temperatures, the inlet line 5 and the outlet line 6 are better connected in the return line 2 '.
  • the overflow valve 7 is located in the feed line 5 and can be adjusted to the system pressure.
  • the actual pressure of the heating system can be read from a manometer 8.
  • the liquid circuit system usually has an overpressure of at least 1.5 bar (depending on the height of the building).
  • a continuously operating pressure and circulation pump 9 is located in the discharge line 6.
  • a check 11 is provided in the drain line 6.
  • a lower level controller 12 for fresh water replenishment
  • an upper level controller 13 for securing the outlet of the expansion vessel 4.
  • Line 19 is an inlet line for fresh water. Fresh water is let into the expansion vessel 4 when the water level 14 falls below the level of the lower level regulator 12.
  • the fresh water supply line 19 is provided with a solenoid valve 22.
  • a prechamber 10 is arranged between the expansion valve 4 and the inlet and outlet lines 5, 6.
  • the antechamber 10 is located below the expansion vessel 4 and is connected to it via a single line 15.
  • the prechamber 10 is a vertically arranged cylinder, the inlet line 5 opening into the prechamber above the outlet line 6.
  • a lock 17 which is formed by a membrane valve.
  • the lock 17 is provided with a cross-shaped slot 18, so that tabs 20 are formed.
  • the tap water from the heating circuit passes through the feed line 5 and the nozzle 16 into the prechamber 10, where it releases gas due to the lower pressure.
  • the lock 17 prevents the warm water from rising immediately up into the expansion vessel 4 and cold water flowing back. Thus, a large part of the water is sucked in by the pump 9 and conveyed directly back into the drain line 6 without getting into the expansion vessel 4.
  • the feed line 5 ends with a vertical nozzle 16 which is arranged inside the prechamber 10 and is directed upwards.
  • An air collecting pot 23 is also provided in the feed line 5.
  • the reference 21 denotes the electrical control.
  • the tap water can be degassed both continuously and cyclically.

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)
  • Physical Or Chemical Processes And Apparatus (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Pipeline Systems (AREA)

Claims (6)

  1. Dispositif pour le transfert d'expansion et le dégazage de systèmes de circulation de liquide, en particulier d'installations de chauffage ou de réfrigération, comportant au moins un récipient d'expansion (4) relié de préférence à l'atmosphère par un échange de gaz, dans lequel est recueilli du liquide arrivant du système de circulation de liquide par une conduite d'amenée (5) pourvue d'une soupape de décharge (7) réglable à la pression de service de l'installation, et à partir duquel du liquide est ramené dans le système de circulation de liquide par une conduite d'évacuation (6) et une pompe refoulante (9) située dans celle-ci, étant précisé que les conduites d'amenée et d'évacuation (5, 6) qui relient le récipient d'expansion (4) au système de circulation de liquide débouchent dans une chambre préliminaire (10) sans pression qui est reliée au récipient d'expansion (4) par une conduite (15), caractérisé en ce que la chambre préliminaire (10), dont le volume est inférieur à celui du récipient d'expansion (4), est disposée à un niveau plus bas que celui-ci, et en ce que la conduite d'amenée (5) débouche dans la chambre préliminaire (10) au-dessus de la conduite d'évacuation (6).
  2. Dispositif selon la revendication 1, caractérisé en ce que la chambre préliminaire (10) a une forme essentiellement prismatique ou cylindrique et est orientée à la verticale.
  3. Dispositif selon la revendication 1 ou 2, caractérisé en ce qu'un dispositif de blocage (17) est disposé entre la chambre préliminaire (10) et le récipient d'expansion (4).
  4. Dispositif selon la revendication 3, caractérisé en ce que le dispositif de blocage (17) est formé par une soupape à membrane.
  5. Dispositif selon la revendication 1 ou 2, caractérisé en ce que la conduite d'amenée (5) se termine par une buse (16) dirigée à la verticale vers le haut qui se trouve à l'intérieur de la chambre préliminaire (10).
  6. Dispositif selon la revendication 1, caractérisé en ce que la chambre préliminaire (10) est fermée.
EP92119424A 1991-11-22 1992-11-13 Dispositif de transfert d'expansion dans des circuits de liquide Expired - Lifetime EP0543285B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT2321/91 1991-11-22
AT0232191A AT399217B (de) 1991-11-22 1991-11-22 Vorrichtung zur expansionsübernahme in flüssigkeitskreislaufsystemen

Publications (2)

Publication Number Publication Date
EP0543285A1 EP0543285A1 (fr) 1993-05-26
EP0543285B1 true EP0543285B1 (fr) 1996-04-17

Family

ID=3532199

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92119424A Expired - Lifetime EP0543285B1 (fr) 1991-11-22 1992-11-13 Dispositif de transfert d'expansion dans des circuits de liquide

Country Status (3)

Country Link
EP (1) EP0543285B1 (fr)
AT (2) AT399217B (fr)
DE (1) DE59206033D1 (fr)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT401293B (de) * 1994-01-14 1996-07-25 Schwarz A & Co Verfahren und vorrichtung zur entgasung der flüssigkeit in einem flüssigkeitskreislauf
NL9400106A (nl) * 1994-01-24 1995-09-01 Cnossen Jan H Apparaat t.b.v. C.V.-installatie met expansievat, drukregeling, waterverliessuppletie, ontluchting, registratie en controle.
US5964215A (en) * 1995-04-21 1999-10-12 Cnossen; Jan Henk Heating installation with closed liquid circuit
NL1010047C2 (nl) * 1998-04-03 1999-10-05 Jan Henk Cnossen Microserver.
ES2146161B1 (es) * 1998-04-06 2000-12-16 Tecnologia Y Componentes S L Procedimiento y dispositivo para la regulacion del regimen pulsante en una columna de liquido de un circuito de transporte energetico mediante un fluido.
US6557774B1 (en) * 1999-10-12 2003-05-06 Gregory A. Krueger Non-pressurized space heating system and apparatus
WO2001043555A1 (fr) * 1999-12-17 2001-06-21 Tecnidex Tecnicas De Desinfeccion, S.A. Installation et procede de mesure, de regulation et de commande des gaz dans des chambres destinees au traitement des fruits, des legumes et des vegetaux
ES2156776B1 (es) * 1999-12-17 2002-02-01 Tecnidex Tecn De Desinfeccion Equipo y procedimiento para la medicion y control de co2 en camaras para tratamiento de fruta.
DE10209894C1 (de) * 2002-03-07 2003-07-17 Bagom Ind Gmbh Druckhaltestation für Heizungs- und/oder Klimatisierungsanlagen
ITRM20050031U1 (it) * 2005-03-11 2006-09-12 Solari S R L Costruzioni Bollitore solare perfezionato.
EP4025837A1 (fr) * 2019-09-03 2022-07-13 Flamco B.V. Système de remplissage de liquide et procédé de remplissage associé
NL2025076B1 (en) * 2019-09-03 2021-04-13 Flamco Bv Liquid replenishing system and method of replenishing

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1289734A (en) * 1913-10-17 1918-12-31 William Gould Hot-water heating apparatus.
GB1364722A (en) * 1972-11-23 1974-08-29 Warmac Ltd Heating systems
AT344372B (de) * 1974-04-17 1978-07-25 Eder Anton Druckausgleichsvorrichtung fuer heizanlagen
ATE68868T1 (de) * 1987-05-05 1991-11-15 Schwarz A & Co Vorrichtung zur expansionsuebernahme in fluessigkeitskreislaufsystemen, insbesondere von heizungs- oder kuehlanlagen.
DE3716396A1 (de) * 1987-05-15 1988-12-15 Hans Friedrich Bernstein Ausdehnungs- und druckhaltevorrichtung fuer zirkulierende fluessigkeitsstroeme

Also Published As

Publication number Publication date
ATE137005T1 (de) 1996-05-15
ATA232191A (de) 1994-08-15
AT399217B (de) 1995-04-25
EP0543285A1 (fr) 1993-05-26
DE59206033D1 (de) 1996-05-23

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