EP1102012A2 - Installation de dégazage - Google Patents

Installation de dégazage Download PDF

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Publication number
EP1102012A2
EP1102012A2 EP00124818A EP00124818A EP1102012A2 EP 1102012 A2 EP1102012 A2 EP 1102012A2 EP 00124818 A EP00124818 A EP 00124818A EP 00124818 A EP00124818 A EP 00124818A EP 1102012 A2 EP1102012 A2 EP 1102012A2
Authority
EP
European Patent Office
Prior art keywords
heating water
circuit
heating
container
degassing device
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
EP00124818A
Other languages
German (de)
English (en)
Other versions
EP1102012B1 (fr
EP1102012A3 (fr
Inventor
Anton Eder
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 AT00124818T priority Critical patent/ATE338251T1/de
Priority to SI200030907T priority patent/SI1102012T1/sl
Publication of EP1102012A2 publication Critical patent/EP1102012A2/fr
Publication of EP1102012A3 publication Critical patent/EP1102012A3/fr
Application granted granted Critical
Publication of EP1102012B1 publication Critical patent/EP1102012B1/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
    • F24D19/00—Details
    • F24D19/08—Arrangements for drainage, venting or aerating
    • F24D19/082—Arrangements for drainage, venting or aerating for water heating systems
    • F24D19/083—Venting arrangements

Definitions

  • the invention relates to a degassing device for the heating water Heating water circuit, which one with the heating water circuit via a supply line and at least one valve connected container in which the Heating water is at a much lower pressure than in the heating circuit, and a return pump to return the heating water from the tank to the Has heating water circuit.
  • Degassing device for the heating water of a heating water circuit, which one with the heating water circuit via a supply line and at least a valve connected container in which the heating water is under a substantial pressure is lower than in the heating circuit, and a return pump for return of the heating water from the container into the heating water circuit.
  • Devices of this type are known and are used in particular in heating water partially remove dissolved oxygen to prevent corrosion from forming Elements of the heating circuit.
  • AT 400 191 B is a degassing device for the Heating water of a heating water circuit is known, in which first a relaxation tank is filled with pressurized heating water, then the expansion tank is separated from the heating circuit via valves and by Opening a vent valve the pressure in the expansion tank to atmospheric pressure is lowered, whereby that in the expansion tank Heating water is released and part of the gas dissolved in it is released and escapes.
  • GB-OS 2209 594 also discloses a heating circuit with a boiler, a circulation pump and radiators, on which a pressure compensation line connected.
  • the heating medium especially the heating water changes yes depending on the temperature, its volume is not insignificant. Furthermore liquids are incompressible.
  • the pressure of the heating medium in the actual heating circuit should always be set up be kept at the same level regardless of the temperature of the heating medium.
  • an expansion tank with a gas cushion connected to the pressure compensation line which is between the expansion tank and the actual heating circuit two parallel line branches has, wherein a pump is provided in a line branch, which is operated by a Pressure sensor in the heating circuit is controlled, and a check valve, in another line branch is a pressure control valve.
  • no measures are planned here. Although it is on the mentioned At the end of the pressure compensation line there is still an open container as a storage container connected via an unspecified management body, but with it the heating medium cannot be degassed.
  • the device according to US Pat. No. 5,007,583 serves the same purpose as that above discussed device according to the aforementioned GB-OS 2 209 594, albeit in a different circuit arrangement.
  • the expansion tank is over one here siphon-like closure connected to the atmosphere. According to experience the water in these siphon-like closures evaporates very much rapidly, so that the expansion tank is in direct contact with the atmosphere stands.
  • the one coming from the actual heating circuit into the expansion tank Water is relaxed at first, because it is here is exposed to significantly lower pressure than in a closed circuit, in a row
  • the heating medium located here takes a direct connection to the atmosphere but very quickly again oxygen from the air.
  • the object of the invention is, in contrast, a degassing device provide the type mentioned, through which a larger part of the in Liquid dissolved gas can be removed from this and according to the invention this is achieved in that in the flow path of the heating water between the Heating water circuit and the container a baffle is provided comprises a chamber into which an injection nozzle extends, which is in front of an impact surface opens onto which the water jet emerging from the injection nozzle Heating water circuit impinges on the tank of flowing heating water, the Mouth opening of the injection nozzle is smaller than the drain opening from the Chamber.
  • a degassing device with a baffle device that is directly in the heating circuit is already known from DE 2624 336 A1.
  • the system pressure is present, so that although the water is swirled, but there is no simultaneous relaxation.
  • the effectiveness of degassing is significantly lower in this device than in the device according to the invention Contraption.
  • the baffle surface of the degassing device according to the invention is preferably Seen in the direction of the flow path, concave. This will make the Turbulence and surface enlargement of the water intensified.
  • one Cooling device in Flow path of the heating water between the heating circuit and the tank one Cooling device is located. This is conveniently immediately after the impact device arranged. This creates the possibility that the degassed air again goes into solution, significantly reduced.
  • a heating water circuit shown schematically in FIG For example, a flow line 31, in which a pump 35 is arranged, one or more Consumer 33, a return line 32 and a boiler or heat generator 34 on.
  • the degassing device according to the invention is over two Lines 11, 36 connected to the heating water circuit 30.
  • the two lines 11, 36 can be shut off via shut-off valves 1.
  • the feed line 11 leads to a unit 37, which is further connected to a fresh water supply 10 and which has a line 12 as an output.
  • the unit 37 is over Shut-off valves 1 can be shut off from the inlet and outlet lines 11, 36, 12.
  • the heating water flowing into the assembly 37 via the feed line 11 flows further through an electrically controllable, preferably as a solenoid valve formed valve 5, by a mass flow controller 6, by a flow switch 7, by a baffle 8 and a cooling device 9.
  • Das valve 5 which can be controlled by a microprocessor control device 13 to start and end a degassing process for heating water from the Heating water circuit 30.
  • a liquid flow set Via the mass flow controller 6, a liquid flow set, regardless of the system pressure in the heating water circuit 30 is. Independent of this system pressure, which varies depending on the heating circuit 30 is high and is usually above 1.5 bar, it becomes even Conditions created for degassing.
  • the flow switch 7, the condition of which can be queried by the control device 13 is used for checking the operating status. When valve 5 is open, it must be from the flow switch 7 a flow can be reported, otherwise there is a malfunction before, which is output by the control device 13 as an alarm. Vice versa with valve 5 (or 4) closed by flow monitor 7 Flow can be
  • the impact device 8 comprises a chamber 40, into which an injector 41 extends.
  • the injection nozzle 41 opens in front of an impact surface 42, on which the water jet emerging from the injection nozzle 41 hits.
  • a flat baffle plate as the baffle surface.
  • Gas bubbles 44 have been released from the heating water by the Liquid flow to be taken. This formation of the gas bubbles will on the one hand causes the solubility of a gas in a liquid decreases with decreasing pressure, on the other hand due to the impact of the impact surface significantly reinforced.
  • the cooling device 9 is provided here from a helical line made of a heat-conducting material is formed.
  • the impact device omit and only provide a cooling device 9, whereby the Efficiency of degassing is reduced.
  • the heating water which carries the gas bubbles 44 with it, passes on the lines 12 and 24 in the container 29, in one in this container arranged butyl rubber bladder 28.
  • the rubber bladder 28 is over a Pressure relief valve 26 connected to atmospheric pressure, the pressure relief valve 26 opens at a slight excess pressure which is below 1 bar, preferably 0.5 bar or less. This slight overpressure is necessary so that the inflowing Heating water overcomes the basic tension of the rubber bladder 28 becomes.
  • the heating water is in the container 29 or in the rubber bladder arranged therein 28 practically depressurized and carried along by the inflowing heating water Gas bubbles can rise and pass through the rubber bladder 28 the pressure relief valve 26 escape.
  • the return of the heating water to the Heating circuit 30 is carried out by a pump 19 by the control device 13 is controlled.
  • the one sucked by the pump 19 out of the container 29 Heating water flows via line 25 and a check valve arranged therein 21 and shut-off valve 20 in the pump 19 and passes through a throttle valve 18 and a dirt trap 15 via line 36 back into the heating circuit 30.
  • the control of the pump 19 by the control device 13 takes place in dependence on the value output by the pressure sensor 16 which the system pressure is fixed.
  • the container 29 also serves as a so-called expansion container. At a Heating the heating water in the heating circuit 30 expands, whereby the pressure in the heating circuit rises above a maximum value.
  • the overflow regulator 17 lies in the exemplary embodiment shown parallel to the pump 19. In principle, it would also be conceivable and possible that this overflow regulator 17 is parallel to the degassing valve 5 or with a corresponding one Control of the degassing valve 5 by the control device 13 is completely eliminated, with overpressure from the control device in each case the degassing valve 5 is drained.
  • the heating water in the heating water circuit 30 cools down, it decreases its volume again. This reduction in volume manifests itself through a pressure drop indicated by the pressure sensor 16. From the control device 13 the pump 19 is then put into operation to raise the system pressure.
  • the pump volume of the pump 19 is usually significantly larger, than this to compensate for the loss of volume due to the cooling of the Heating water in the heating circuit 30 would be necessary.
  • the overflow regulator therefore opens when the pump 19 is started up 17, and a large part of the heating water supplied by the pump reaches the container 29 via the overflow regulator 17
  • Degassing device is preferably a degassing process at the same time as the pump 19 starts up (due to a too low System pressure) carried out for which purpose the valve 5 is opened and only closed again a short time before the pump 19 was switched off becomes.
  • the control device 13 actuates the valve 4 in order to supply fresh water 10 new heating water in the rubber bladder 28 in the container 29 refill.
  • a pressure reducer 2 for lowering the water pressure in the range of the system pressure of the heating circuit 30 and an electronic water meter 3 is provided. Because of the needed Make-up quantities of heating water can be determined whether it is a Volume loss due to normal leakage and due to gas excretion through the degassing device or an extraordinary one Water loss is involved, for example due to a pipe break.
  • the replenished fresh water is further via the flow switch 7 Baffle 8 fed before it enters the container 29. In this way effective degassing is already available when fresh water is replenished of the replenished heating water reached.
  • the supply line 11 to the degassing device, via which the heating water Degassing is removed branches in the embodiment shown Return line 32 of the heating water circuit 30 from. It would also be possible to do this Provide derivation on the flow line 31, which of the degassing device supplied heating water but no temperatures higher than 90 ° Celsius may have. This could be monitored by appropriate sensors Suitable cooling vessels could also be installed upstream.
  • a degassing device (which in particular the impact device 8, the cooling device 9, the container 29 the rubber bladder 28 and the pump 19) with a constant pressure device (Overflow regulator 17, container 29 with rubber bladder 28 and pump 19) and a fresh water make-up (pressure reducer 2, water meter 3 and Valve 4) combined.
  • the degassing device independent of a constant pressure device and / or a make-up device to train for fresh water.
  • the cooling device 9 in A heat exchanger could also be in the form of a helical line, for example be provided by the heat of the heating water to be degassed to the degassing flowing back from the container into the heating circuit Heating water is released.

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)
  • Degasification And Air Bubble Elimination (AREA)
  • Steam Or Hot-Water Central Heating Systems (AREA)
  • Physical Water Treatments (AREA)
EP20000124818 1999-11-17 2000-11-14 Installation de dégazage Expired - Lifetime EP1102012B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
AT00124818T ATE338251T1 (de) 1999-11-17 2000-11-14 Entgasungseinrichtung
SI200030907T SI1102012T1 (sl) 1999-11-17 2000-11-14 Naprava za odplinjevanje

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT193899 1999-11-17
AT193899 1999-11-17

Publications (3)

Publication Number Publication Date
EP1102012A2 true EP1102012A2 (fr) 2001-05-23
EP1102012A3 EP1102012A3 (fr) 2003-04-02
EP1102012B1 EP1102012B1 (fr) 2006-08-30

Family

ID=3524283

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20000124818 Expired - Lifetime EP1102012B1 (fr) 1999-11-17 2000-11-14 Installation de dégazage

Country Status (4)

Country Link
EP (1) EP1102012B1 (fr)
DE (1) DE50013385D1 (fr)
DK (1) DK1102012T3 (fr)
ES (1) ES2270774T3 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1262720A3 (fr) * 2001-06-01 2004-04-28 Helmut Friedrich Dispositif de dégazage pour liquides dans un circuit ouvert ou fermé
WO2016138599A1 (fr) * 2015-03-03 2016-09-09 Imi Hydronic Engineering Switzerland Ag Dispositif pour un dégazage d'un liquide
EP2281151B1 (fr) * 2008-04-24 2018-06-06 Flamco B.v. Systeme de chauffage a dispositif d'expansion

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2624336A1 (de) 1976-05-31 1977-12-15 Myson Heat Exchangers Verfahren und vorrichtung zum entgasen eines gas-fluessigkeitsgemisches
GB2209594A (en) 1987-09-08 1989-05-17 Pressure Units Limited Central heating system
US5007583A (en) 1987-05-05 1991-04-16 A. Schwarz & Co. Device for accomodating expansion in fluid circulation systems
AT400191B (de) 1992-03-25 1995-10-25 Eder Anton Entgasungseinrichtung

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2346286C3 (de) * 1973-09-14 1978-11-23 Joh. Vaillant Kg, 5630 Remscheid Vorrichtung zur Gasabscheidung
DE3109918C2 (de) * 1981-03-14 1989-03-16 Wilo-Werk Gmbh & Co Pumpen- Und Apparatebau, 4600 Dortmund Flüssigkeitspumpe mit Gasabscheidekammer
DE29905671U1 (de) * 1999-03-18 1999-06-10 Polynorm GmbH, 42555 Velbert Einrichtung zur Erhöhung der Entgasungsleistung in hydraulischen Systemen

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2624336A1 (de) 1976-05-31 1977-12-15 Myson Heat Exchangers Verfahren und vorrichtung zum entgasen eines gas-fluessigkeitsgemisches
US5007583A (en) 1987-05-05 1991-04-16 A. Schwarz & Co. Device for accomodating expansion in fluid circulation systems
GB2209594A (en) 1987-09-08 1989-05-17 Pressure Units Limited Central heating system
AT400191B (de) 1992-03-25 1995-10-25 Eder Anton Entgasungseinrichtung

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1262720A3 (fr) * 2001-06-01 2004-04-28 Helmut Friedrich Dispositif de dégazage pour liquides dans un circuit ouvert ou fermé
EP2281151B1 (fr) * 2008-04-24 2018-06-06 Flamco B.v. Systeme de chauffage a dispositif d'expansion
WO2016138599A1 (fr) * 2015-03-03 2016-09-09 Imi Hydronic Engineering Switzerland Ag Dispositif pour un dégazage d'un liquide

Also Published As

Publication number Publication date
DE50013385D1 (de) 2006-10-12
DK1102012T3 (da) 2007-01-02
EP1102012B1 (fr) 2006-08-30
EP1102012A3 (fr) 2003-04-02
ES2270774T3 (es) 2007-04-16

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