EP1102012B1 - Installation de dégazage - Google Patents

Installation de dégazage Download PDF

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Publication number
EP1102012B1
EP1102012B1 EP20000124818 EP00124818A EP1102012B1 EP 1102012 B1 EP1102012 B1 EP 1102012B1 EP 20000124818 EP20000124818 EP 20000124818 EP 00124818 A EP00124818 A EP 00124818A EP 1102012 B1 EP1102012 B1 EP 1102012B1
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EP
European Patent Office
Prior art keywords
heating water
installation
water circulation
container
degasing
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
EP20000124818
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German (de)
English (en)
Other versions
EP1102012A3 (fr
EP1102012A2 (fr
Inventor
Anton Eder
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Individual
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Individual
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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 Walkeringernikonne with a degassing device connected to this for the heating water of Edelwassernikankonnes, which connected to a Walkeringerniklauf via a supply line and at least one valve container in which the heating water is under a much lower pressure than in Walkerworth mobilislauf, and a return pump for Returning the heating water from the container has in the Edelwasserniklauf.
  • Devices of this type are known and serve in particular to partially remove dissolved oxygen in the heating water in order to reduce the corrosion of the elements of the heating circuit.
  • a degassing for the heating water of Schuziernikonnes is known in which initially a flash tank is filled with pressurized heating water, then the expansion tank is separated by valves from the heating circuit and by opening a vent valve, the pressure in the flash tank to atmospheric pressure is lowered, whereby the heating water in the expansion tank is relaxed and a portion of the dissolved gas is released and escapes.
  • a heating circuit is further known with a boiler, a circulation pump and radiators to which a pressure equalization line is connected.
  • the heating medium in particular the heating water yes changed depending on the temperature of its volume not insignificant.
  • liquids are incompressible.
  • the pressure of the heating medium in the actual heating circuit should always be kept at the same level, regardless of the respective temperature of the heating medium.
  • This is an expansion vessel with a gas cushion connected to the pressure equalization line, which has two parallel line branches between the expansion tank and the actual heating circuit, wherein in a line branch, a pump is provided, which is controlled by a pressure sensor in the heating circuit, and a non-return valve in the other line branch is a pressure control valve.
  • no measures are provided here. Although it is connected to the aforementioned pressure equalization line end still an open container as a reservoir via a non-descript conduit member, but so that the heating medium can not be degassed.
  • the device according to US-PS 5 007 583 serves the same purpose as the above-discussed device according to said GB-OS 2 209 594, although in another circuit arrangement.
  • the expansion vessel is connected here via a siphon-like closure with the atmosphere.
  • the water contained in these siphon-like closures evaporates very quickly, so that the expansion vessel is directly in communication with the atmosphere.
  • reaching from the actual heating circuit in the expansion vessel water is relaxed at first, since it is here exposed to a much lower pressure than in a closed circuit, due to the direct connection with the atmosphere takes the heating medium but very quickly back to oxygen out of the air.
  • the object of the invention is in contrast to provide a Schumacherniklauf with a connected thereto degassing of the type mentioned, through which a greater part of the dissolved gas in the liquid can be removed from this and according to the invention succeeds in that in the flow path of the heating water between the Edelwasserniklauf and the container, a baffle device is provided, which comprises a chamber into which an injection nozzle extends, which opens in front of a baffle surface on which the passing of the injector water jet of the Schuwasserniklauf bouncing to the container flowing heating water, the mouth of the injection nozzle is smaller than the discharge opening from the chamber.
  • a degassing device In a degassing device according to the invention is carried out in the baffle a strong turbulence of the heating water with simultaneous sudden relaxation. By combining these influences on the water, the dissolved gases can dissolve to a much greater extent from the liquid and form gas bubbles. These can then collect and emerge from the heating water in the container in which the heating water is under a much lower pressure than in the heating circuit.
  • a degassing device with a baffle device which is installed directly in the heating circuit, is further known from DE 2624 336 A1.
  • this baffle system pressure is present, so that although a turbulence of the water, but not a simultaneous relaxation occurs.
  • the effectiveness of degassing is much lower in this device than in the device according to the invention.
  • the baffle of the degassing device according to the invention seen in the direction of the flow path, is concave.
  • the turbulence and surface enlargement of the water is enhanced.
  • a cooling device is located in the flow path of the heating water between the heating circuit and the container. This is conveniently located immediately after the baffle device. As a result, the possibility that the degassed air goes into solution again, substantially reduced.
  • FIG. 1 An illustrated schematically in Fig. 1 Walkerwasserniklauf has in a known manner a flow line 31, in which a pump 35 is arranged, one or more consumers 33, a return line 32 and a boiler or heat generator 34.
  • the degassing device according to the invention is connected to the Schuwassserniklauf 30 via two lines 11, 36.
  • the two lines 11, 36 can be shut off via shut-off valves 1.
  • the supply line 11 leads to a structural unit 37, which is further connected to a fresh water supply 10 and which has a line 12 as the output.
  • the assembly 37 is shut off via shut-off valves 1 from the input and output lines 11, 36, 12.
  • the by a microprocessor controller 13 controllable valve 5 is used to start and stop a degassing process for heating water from Schuzierniksburg 30.
  • a liquid flow is adjusted, which is independent of the system pressure in Schuntzniksburg 30. Regardless of this system pressure, which is different depending on the heating circuit 30 and is usually above 1.5 bar, thereby uniform conditions for degassing are created.
  • the flow monitor 7, the state of which can be interrogated by the control device 13, serves to control the operating state. When the valve 5 is open, a flow must be reported by the flow monitor 7, otherwise there is a malfunction, which is output by the controller 13 as an alarm. Conversely, when the valve is closed 5 (or 4) from the flow switch 7 no flow may be reported.
  • the baffle 8 comprises a chamber 40 into which an injection nozzle 41 extends.
  • the injection nozzle 41 opens in front of a baffle 42 on which the water jet passing from the injection nozzle 41 strikes.
  • a baffle plate as impact surface.
  • a concave or cup-shaped design of the baffle surface viewed in the direction of the flow path, is preferred, thereby further increasing its efficiency.
  • the emerging from the injector, striking the baffle 42 heating water is suddenly relaxed in this process and strongly swirled and then flows laterally around the baffle 42 to the discharge line 43, the Cross-section is substantially larger than the mouth opening of the injection nozzle 41.
  • the cooling device 9 is provided, which is formed here by a helical conduit made of a thermally conductive material.
  • the heating water which carries the gas bubbles 44, passes on via the lines 12 and 24 in the container 29, in a container disposed in this butyl rubber bladder 28.
  • the rubber bladder 28 is connected via a pressure relief valve 26 with Atmospheric pressure connected, wherein the pressure relief valve 26 opens at a low pressure, which is less than 1 bar, preferably 0.5 bar or less. This slight overpressure is necessary so that the basic tension of the rubber bubble 28 is overcome by the inflowing heating water.
  • the heating water is thus practically unpressurized in the container 29 or in the rubber bladder 28 arranged therein, and the gas bubbles entrained by the incoming heating water can rise in the rubber bladder 28 and escape through the overpressure valve 26.
  • the sucked by the pump 19 from the container 29 heating water flows through line 25 and disposed therein check valve 21 and check valve 20 in the pump 19 and passes through a throttle valve 18 and a strainer 15 via the line 36 back into the heating circuit 30.
  • Die Control of the pump 19 by the control device 13 takes place as a function of the value given by the pressure sensor 16, by which the system pressure is fixed.
  • the container 29 further serves as a so-called expansion tank.
  • This expands, wherein the pressure in the heating circuit increases above a maximum value.
  • This opens an overflow regulator 17 (proportional to the overpressure), via which the container 29 or the rubber bubble 28 arranged therein is connected to the heating water circuit 30.
  • this overflow regulator 17 it would also be possible for this overflow regulator 17 to lie parallel to the degassing valve 5 or to be completely omitted by the control device 13 if the degassing valve 5 is controlled accordingly, with an overpressure from the control device in each case is discharged via the degassing valve 5.
  • the heating water in the heating water circuit 30 cools down, its volume decreases again. This decrease in volume is manifested by a pressure drop indicated by the pressure sensor 16. From the control device 13, the pump 19 is then taken to increase the system pressure in operation. Usually, the pumping volume of the pump 19 is substantially greater than would be necessary to compensate for the volume loss due to the cooling of the heating water in the heating circuit 30. In conventional expansion devices therefore opens at start-up of the pump 19, the spill 17, and a majority of funded by the pump heating water passes through the spill 17 back into the container 29.
  • the degassing according to the invention is preferably a degassing process simultaneously with a tarnishing Pump 19 (due to a too low system pressure) carried out, for which purpose the valve 5 is opened and only a short period before switching off the pump 19 is closed again.
  • This combination of the degassing process with the Schumachernachspeisung results in a significant energy savings.
  • the parts surrounded by the dashed lines 38 and 39 are preferably designed as structural units.
  • the microprocessor controller 13 calculates the Schuzierstand in the container 29. Since minor leaks in the heating system are always present, it comes to a certain time over time As soon as this liquid level has fallen below a predetermined minimum value, the valve 4 is actuated by the control device 13 in order to supply new heating water into the rubber bubble 28 in the container 29 via the fresh water supply 10 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 in the fresh water supply line. Due to the required make-up quantities of heating water can be determined whether it is a loss of volume due to normal leaks and due to gas excretion through the degassing or an extraordinary loss of water, which occurs for example due to a pipe break.
  • the refilled fresh water is further supplied via the flow monitor 7 of the baffle device 8, before it enters the container 29. In this way, an effective degassing of the nachgespeisten heating water is already achieved during the refilling of fresh water.
  • the supply line 11 to the degassing is removed via the heating water for degassing, branches in the illustrated embodiment of the return line 32 of Schumacherniklaufes 30 from. It would also be possible to pre-view this discharge at the feed line 31, wherein the heating water supplied to the degassing device may however not have higher temperatures than 90 ° Celsius. This could be monitored by appropriate sensors, also suitable Abkühlgefäße could be connected upstream.
  • a degassing which in particular the baffle device 8, the cooling device 9, the container 29 with the rubber bladder 28 and the pump 19 includes
  • a pressure maintaining device spill 17, container 29 with rubber bladder 28 and pump 19
  • a Frischwassernachspeisung pressure reducer 2, water meter 3 and valve 4
  • the degassing device independently of a pressure stabilizer and / or a make-up device for fresh water.
  • a heat exchanger could be provided, through which the heat of the heating water to be degassed is discharged to the flowing back from the container into the heating circuit degassed heating water.

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  • 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)

Claims (10)

  1. Circuit d'eau chaude avec une installation de dégazage pour l'eau chaude qui est reliée avec celui-ci et qui comprend un réservoir (29), lequel est relié avec le circuit d'eau chaude par l'intermédiaire d'une conduite d'alimentation (11) et d'au moins une vanne (1) et dans lequel l'eau chaude est à une pression nettement plus faible que dans le circuit d'eau chaude, et une pompe de récupération (19) pour ramener l'eau chaude depuis le réservoir jusque dans le circuit d'eau chaude, caractérisé en ce que dans le trajet de circulation de l'eau chaude, entre le circuit d'eau chaude (30) et le réservoir (29), est prévu un dispositif d'impact (8) comprenant une chambre (40) dans laquelle arrive une buse d'injection (41) aboutissant devant une surface d'impact (42) contre laquelle bute le jet qui sort de la buse d'injection (41) et qui se compose de l'eau chaude qui s'écoule du circuit d'eau chaude (30) vers le réservoir (29), l'orifice d'embouchure de la buse d'injection (41) étant plus petit que l'ouverture de sortie hors de la chambre (40).
  2. Circuit d'eau chaude avec une installation de dégazage qui est reliée avec celui-ci selon la revendication 1, caractérisé en ce que la surface d'impact (42) a une forme concave en direction du trajet d'écoulement.
  3. Circuit d'eau chaude avec une installation de dégazage qui est reliée avec celui-ci selon l'une quelconque des revendications 1 ou 2, caractérisé en ce qu'à l'intérieur du réservoir (29) se trouve, d'une manière connue en soi, une bulle (28) en matériau souple dans laquelle se trouve l'eau chaude.
  4. Circuit d'eau chaude avec une installation de dégazage qui est reliée avec celui-ci selon la revendication 3, caractérisé en ce que la bulle (28) est, d'une manière connue en soi, reliée avec l'atmosphère par l'intermédiaire d'une vanne de surpression (26) qui s'ouvre sous une faible surpression de moins de 1 bar, de préférence de 0,5 bar ou moins.
  5. Circuit d'eau chaude avec une installation de dégazage qui est reliée avec celui-ci selon l'une quelconque des revendications 1 à 4, caractérisé en ce que dans le trajet d'écoulement de l'eau chaude, entre le circuit d'eau chaude (30) et le réservoir (29), est prévu un dispositif de refroidissement (9) ayant de préférence la forme d'une conduite hélicoïdale en matériau thermoconducteur.
  6. Circuit d'eau chaude avec une installation de dégazage qui est reliée avec celui-ci selon la revendication 5, caractérisé en ce que le dispositif de refroidissement (9) est placé entre le dispositif d'impact (8) et le réservoir (29), de préférence directement après le dispositif d'impact (8).
  7. Circuit d'eau chaude avec une installation de dégazage qui est reliée avec celui-ci selon l'une quelconque des revendications 1 à 6, caractérisé en ce que le réservoir (29) est relié avec le circuit d'eau chaude (30) par l'intermédiaire d'un mécanisme de régulation du passage du flux (17) qui ouvre en cas de dépassement d'une pression maximale préréglée, le mécanisme de régulation du passage du flux (17) étant situé de préférence dans une branche de conduite qui est parallèle à la pompe (19).
  8. Circuit d'eau chaude avec une installation de dégazage qui est reliée avec celui-ci selon l'une quelconque des revendications 1 à 7, caractérisé en ce que dans la conduite d'alimentation (11) est disposé un régulateur de quantité de flux (6).
  9. Circuit d'eau chaude avec une installation de dégazage qui est reliée avec celui-ci selon l'une quelconque des revendications 1 à 8, caractérisé en ce que dans la conduite d'alimentation (11) est disposé un contrôleur de flux d'écoulement (7).
  10. Circuit d'eau chaude avec une installation de dégazage qui est reliée avec celui-ci selon l'une quelconque des revendications 1 à 9, caractérisé en ce que dans la conduite à laquelle est raccordé le dispositif d'impact (8), devant le dispositif d'impact (8) en regardant dans la direction de l'écoulement, aboutit une conduite d'alimentation en eau d'appoint.
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 EP1102012A2 (fr) 2001-05-23
EP1102012A3 EP1102012A3 (fr) 2003-04-02
EP1102012B1 true 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)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ATE288054T1 (de) * 2001-06-01 2005-02-15 Helmut Friedrich Vorrichtung zum entgasen von flüssigkeiten in einem geschlossenen oder offenen kreislauf
NL1036252C2 (nl) * 2008-04-24 2010-05-31 Flamco Stag Gmbh Verwarmingssysteem met expansie-inrichting.
CH710814A2 (de) * 2015-03-03 2016-09-15 Imi Hydronic Eng Switzerland Ag Vorrichtung zur Entgasung einer Flüssigkeit.

Family Cites Families (7)

* 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
DE2624336A1 (de) * 1976-05-31 1977-12-15 Myson Heat Exchangers Verfahren und vorrichtung zum entgasen eines gas-fluessigkeitsgemisches
DE3109918C2 (de) * 1981-03-14 1989-03-16 Wilo-Werk Gmbh & Co Pumpen- Und Apparatebau, 4600 Dortmund Flüssigkeitspumpe mit Gasabscheidekammer
US5007583A (en) * 1987-05-05 1991-04-16 A. Schwarz & Co. Device for accomodating expansion in fluid circulation systems
GB8721090D0 (en) 1987-09-08 1987-10-14 Pressure Units Ltd Central heating system
AT400191B (de) 1992-03-25 1995-10-25 Eder Anton Entgasungseinrichtung
DE29905671U1 (de) * 1999-03-18 1999-06-10 Polynorm GmbH, 42555 Velbert Einrichtung zur Erhöhung der Entgasungsleistung in hydraulischen Systemen

Also Published As

Publication number Publication date
DK1102012T3 (da) 2007-01-02
DE50013385D1 (de) 2006-10-12
EP1102012A3 (fr) 2003-04-02
ES2270774T3 (es) 2007-04-16
EP1102012A2 (fr) 2001-05-23

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