EP0009234A1 - Steam distribution pipe for humidifiers - Google Patents

Steam distribution pipe for humidifiers Download PDF

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Publication number
EP0009234A1
EP0009234A1 EP79103506A EP79103506A EP0009234A1 EP 0009234 A1 EP0009234 A1 EP 0009234A1 EP 79103506 A EP79103506 A EP 79103506A EP 79103506 A EP79103506 A EP 79103506A EP 0009234 A1 EP0009234 A1 EP 0009234A1
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Prior art keywords
steam
blow
distribution pipe
steam distribution
interior
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EP79103506A
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German (de)
French (fr)
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Paul Bähler
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Individual
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F6/00—Air-humidification, e.g. cooling by humidification
    • F24F6/18—Air-humidification, e.g. cooling by humidification by injection of steam into the air

Definitions

  • the invention relates to a steam distribution pipe for steam humidifiers in air conditioning systems.
  • the disadvantage of the known steam humidifiers for air conditioning systems is that they spray the condensation water which is deposited on the inside of the steam distribution pipe due to the cooling in the air flow to be humidified with the steam blow-out.
  • the steam is distributed unevenly to the air stream to be humidified, which on the one hand leads to local oversaturation or to the formation of steam plumes and thus to a long humidification distance and on the other hand to condensation on parts located downstream.
  • This causes the air conditioning environment in the air to get wet, which on the one hand can lead to corrosion and on the other hand can facilitate the development of bacterial cultures.
  • the object of the invention is to prevent splashing of condensed water when steam emerges from the steam distribution pipes and to achieve a uniform distribution over the air stream to be humidified.
  • the embodiment of a steam distribution pipe according to the invention is characterized in that the inlet opening for the steam into the blow-out elements are arranged in the area from the outer wall to the central axis of the blow-out pipe and that the steam blow-out pipe is also double-walled, the inlet openings of the blow-out elements being located in the interior. Due to the insulating effect of the outer space of the steam condensate is taken from the free inner space, and a scattering of condensed water at the steam outlet from the Dam p fverteilrohr is thus avoided.
  • a uniform steam distribution is achieved on the one hand by arranging several steam distribution pipes vertically to almost horizontally in the air stream to be humidified, and by arranging the blow-out elements at various points along the length of the blow-out pipe, all blow-out devices corresponding to the prevailing and evenly distributed overpressure in the pipe system Blow out the same amount of steam per unit of time. This avoids local oversaturation or the formation of vapor layers and vapor plumes and the humidification distance is correspondingly shorter.
  • the inner space 7 can communicate with the outer space 6, for example, by the open end 8 of the inner tube 5 at a distance from the closed end 9 of the outer tube or blow pipe 4 is arranged.
  • the inlet openings 10 of the blow-out elements 11 arranged over the length of the blow-out tube 4 are located in the interior 7 and in the area of the tube wall of the blow-out tube 4.
  • a droplet separator 12 which is attached in the exterior 6 before entering the interior 7 prevents that on the inside of the Blow pipe 4 condensation 13 can get into the interior 7.
  • the steam supply of the blow-out elements 11 takes place from the collector 1 into the outer space 6 via the droplet separator 12 to the inlet openings 10 of the blow-out elements 11 in the interior 7.
  • the steam distribution pipe 3 shown vertically in FIG. 1 can also be used almost horizontally or in an inclined position.
  • the steam supply to the inlet openings 10 of the blow-out elements 11 in the interior 7 can also take place directly from the collector 1, contrary to FIG. 1 according to FIG. 2.
  • the outer stationary vapor space 6 acts only as insulation and as jacket heating of the interior 7.

Abstract

Die Ausbildung des Dampf-Luftbefeuchters ist dadurch gekennzeichnet, dass er aus einem doppelwandigen Dampfverteilrohr (4, 5) besteht. Durch den mit Dampf beheizten Mantelraum (6) bleibt der Innenraum (7) durch die Abkühlung des Luftstromes kondensatfrei. Der dem Luftstrom abgegebene Dampf wird somit dem kondensatfreien Innenraum (7) entnommen und ein Verspritzen von Kondenswasser wird vermieden. Da die Ausblasorgane (11) längs des Ausblasrohres (3) angeordnet sind und auf den gesamten Kanalquerschnitt verteilt sind, werden Dampfschichten vermieden.

Figure imgaf001
The design of the steam humidifier is characterized in that it consists of a double-walled steam distribution pipe (4, 5). Due to the steam-heated jacket space (6), the interior (7) remains free of condensate due to the cooling of the air flow. The steam released into the air stream is thus removed from the condensate-free interior (7) and splashing of condensed water is avoided. Since the blow-out elements (11) are arranged along the blow-out pipe (3) and are distributed over the entire channel cross-section, layers of steam are avoided.
Figure imgaf001

Description

Die Erfindung betrifft ein Dampfverteilrohr für Dampf-Luftbefeuchter in Klimaanlagen.The invention relates to a steam distribution pipe for steam humidifiers in air conditioning systems.

Der Nachteil der bekannten Dampf-Luftbefeuchter für Klimaanlagen ist, dass sie das durch die Abkühlung im zu befeuchtenden Luftstrom auf der Innenseite des Dampfverteilrohres niederschlagende Kondenswasser mit der Dampfausblasung verspritzen. Zudem erfolgt die Dampfverteilung auf den zu befeuchtenden Luftstrom ungleichmässig, was einerseits zur örtlichen Uebersättigung bzw. zur Dampfschwadenbildung und dadurch zu einer langen Befeuchtungsstrecke führt und andererseits zu Kondensniederschlägenan stromwärtsliegenden Teilen. Dadurch wird die in Luftrichtung liegende Umgebung der Klimaanlage nass, was einerseits zu Korrosionen führen und andererseits die Entstehung von Bakterienkulturen erleichtern kann.The disadvantage of the known steam humidifiers for air conditioning systems is that they spray the condensation water which is deposited on the inside of the steam distribution pipe due to the cooling in the air flow to be humidified with the steam blow-out. In addition, the steam is distributed unevenly to the air stream to be humidified, which on the one hand leads to local oversaturation or to the formation of steam plumes and thus to a long humidification distance and on the other hand to condensation on parts located downstream. This causes the air conditioning environment in the air to get wet, which on the one hand can lead to corrosion and on the other hand can facilitate the development of bacterial cultures.

Aufgabe der Erfindung ist es, ein Verspritzen von Kondenswasser beim Dampfaustritt aus den Dampfverteilrohren zu verhindern und eine gleichmässige Verteilung auf den zu befeuchtenden Luftstrom zu erzielen. Die erfindungsgemässe Ausführung eines Dampfverteilrohres ist dabei dadurch gekennzeichnet, dass die Eintrittsöffnung für den Dampf in die Ausblasorgane im Bereich von der Aussenwand bis zur Mittelachse des Ausblasrohres angeordnet sind und dass ausserdem das Dampfausblasrohr doppelwandig ist, wobei sich die Eintrittsöffnungen der Ausblasorgane im Innenraum befinden. Durch die Isolationswirkung des äusseren Raumes wird der Dampf dem kondensatfreien Innenraum entnommen und ein Verspritzen von Kondenswasser beim Dampfaustritt aus dem Dampfverteilrohr wird somit vermieden. Eine gleichmässige Dampfverteilung wird einerseits erreicht, indem mehrere Dampfverteilrohre vertikal bis beinahe horizontal im zu befeuchtenden Luftstrom angeordnet sind, und dass die Ausblasorgane an verschiedenen Stellen über die Länge des Ausblasrohres verteilt angeordnet sind, wobei alle Ausblasorgane entsprechend dem im Rohrsystem herrschenden und gleichmässig verteilten Ueberdruck die selbe Dampfmenge pro Zeiteinheit ausblasen. Dadurch wird eine örtliche Uebersättigung bzw. die Bildung von Dampfschichten und Dampfschwaden vermieden und die Befeuchtungsstrecke ist entsprechend kürzer.The object of the invention is to prevent splashing of condensed water when steam emerges from the steam distribution pipes and to achieve a uniform distribution over the air stream to be humidified. The embodiment of a steam distribution pipe according to the invention is characterized in that the inlet opening for the steam into the blow-out elements are arranged in the area from the outer wall to the central axis of the blow-out pipe and that the steam blow-out pipe is also double-walled, the inlet openings of the blow-out elements being located in the interior. Due to the insulating effect of the outer space of the steam condensate is taken from the free inner space, and a scattering of condensed water at the steam outlet from the Dam p fverteilrohr is thus avoided. A uniform steam distribution is achieved on the one hand by arranging several steam distribution pipes vertically to almost horizontally in the air stream to be humidified, and by arranging the blow-out elements at various points along the length of the blow-out pipe, all blow-out devices corresponding to the prevailing and evenly distributed overpressure in the pipe system Blow out the same amount of steam per unit of time. This avoids local oversaturation or the formation of vapor layers and vapor plumes and the humidification distance is correspondingly shorter.

Im folgenden wird die Erfindung anhand eines Ausführungsbeispiels im Zusammenhang mit der Zeichnung erläutert. Die beiden Figuren zeigen Vertikalschnitte, rein schematisch, durch zwei Ausführungsvarianten.The invention is explained below using an exemplary embodiment in conjunction with the drawing. The two figures show vertical sections, purely schematically, through two design variants.

Das am Kollektor 1 gemäss Figur 1 der Zeichnung angeschlossene vertikal bis beinahe horizontal zum Luftstrom 2 stehende Dampfverteilrohr 3 wird durch zwei koaxial angeordnete Rohre 4 und 5 in einen Aussenraum 6 und einen Innenraum 7 geteilt. Der Innenraum 7 kann zum Beispiel mit dem Aussenraum 6 kommunizieren, indem das offene Ende 8 des Innenrohrs 5 in einem Abstand zum geschlossenen Ende 9 des Aussenrohres bzw. Ausblasrohres 4 angeordnet ist. Die Eintrittsöffnungen 10 der über der Länge des Ausblasrohres 4 angeordneten Ausblasorgane 11 befinden sich im Innenraum 7 und im Bereich der Rohrwandung des Ausblasrohres 4. Ein im Aussenraum 6 vor dem Eintritt in den Innenraum 7 angebrachter Tropfenabscheider 12 verhindert, dass das sich an der Innenseite des Ausblasrohres 4 niederschlagende Kondenswasser 13 in den Innenraum 7 gelangen kann. Das durch den kalten Luftstrom 2 an der Innenseite des Ausblasrohres 4 niederschlagende Kondenswasser 13-'fliesst in den Kollektor 1, wo es gesammelt wird. Die Dampfzufuhr der Ausblasorgane 11 erfolgt vom Kollektor 1 in den äusseren Raum 6 über den Tropfenabscheider 12 zu den Eintrittsöffnungen 10 der Ausblasorgane 11 im Innenraum 7.The steam distribution pipe 3 connected to the collector 1 according to FIG. 1 of the drawing, vertical to almost horizontal to the air stream 2, is divided into an outside space 6 and an inside space 7 by two coaxially arranged pipes 4 and 5. The inner space 7 can communicate with the outer space 6, for example, by the open end 8 of the inner tube 5 at a distance from the closed end 9 of the outer tube or blow pipe 4 is arranged. The inlet openings 10 of the blow-out elements 11 arranged over the length of the blow-out tube 4 are located in the interior 7 and in the area of the tube wall of the blow-out tube 4. A droplet separator 12 which is attached in the exterior 6 before entering the interior 7 prevents that on the inside of the Blow pipe 4 condensation 13 can get into the interior 7. The condensate 13-'which precipitates through the cold air stream 2 on the inside of the blow-out pipe 4 flows into the collector 1, where it is collected. The steam supply of the blow-out elements 11 takes place from the collector 1 into the outer space 6 via the droplet separator 12 to the inlet openings 10 of the blow-out elements 11 in the interior 7.

Das in Fig. 1 vertikal dargestellte Dampfverteilrohr 3 kann auch nahezu waagrecht oder in schräger Lage verwendet werden. Die Dampfzufuhr zu den Eintrittsöffnungen 10 der Ausblasorgane 11 im Innenraum 7 kann auch entgegen der Fig. 1 nach Fig. 2 direkt vom Kollektor 1 erfolgen. Dabei wirkt der äussere stationäre Dampfraum 6 lediglich als Isolation und als Mantelheizung des Innenraumes 7.The steam distribution pipe 3 shown vertically in FIG. 1 can also be used almost horizontally or in an inclined position. The steam supply to the inlet openings 10 of the blow-out elements 11 in the interior 7 can also take place directly from the collector 1, contrary to FIG. 1 according to FIG. 2. The outer stationary vapor space 6 acts only as insulation and as jacket heating of the interior 7.

Claims (3)

1. Dampfverteilrohr für Luftbefeuchter, dadurch gekennzeichnet, dass das Rohr doppelwandig ausgebildet ist und dass der zwischen den Wänden gebildete Zwischenraum durch Dampfausblasorgane überbrückt ist, wobei sich die Eintrittsöffnungen der Ausblasorgane im Innenraum befinden und die Dampfzufuhr in den Innenraum entweder direkt, oder über den äusseren Raum vom Kollektor erfolgt.1. Steam distribution pipe for humidifiers, characterized in that the pipe is double-walled and that the space formed between the walls is bridged by steam blow-out elements, the inlet openings of the blow-out elements being in the interior and the steam supply to the interior either directly or via the exterior Space is taken from the collector. 2. Dampfverteilrohr nach Anspruch 1, dadurch gekennzeichnet, dass zwei koaxial ineinander angeordnete, einerends geschlossene Rohre vorgesehen sind und dass die Ausblasorgane über die Länge des Ausblasrohres verteilt angeordnet sind.2. Steam distribution pipe according to claim 1, characterized in that two coaxially arranged one inside, one end closed pipes are provided and that the blow-out elements are arranged distributed over the length of the blow-out pipe. 3. Dampfverteilrohr nach Anspruch 1, dadurch gekennzeichnet, dass das Dampfverteilrohr in beliebiger Lage im Luftstrom angebracht ist.3. Steam distribution pipe according to claim 1, characterized in that the steam distribution pipe is mounted in any position in the air flow.
EP79103506A 1978-09-25 1979-09-19 Steam distribution pipe for humidifiers Withdrawn EP0009234A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH995878 1978-09-25
CH9958/78 1978-09-25

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EP0009234A1 true EP0009234A1 (en) 1980-04-02

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EP79103506A Withdrawn EP0009234A1 (en) 1978-09-25 1979-09-19 Steam distribution pipe for humidifiers

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US (1) US4265840A (en)
EP (1) EP0009234A1 (en)
DE (1) DE7926840U1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0823597A1 (en) * 1996-08-08 1998-02-11 Eaton-Williams Group Limited Steam outlet assembly

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US4384873A (en) * 1982-02-10 1983-05-24 Herrmidifier Company, Inc. Central steam humidifier
JPS599072U (en) * 1982-07-07 1984-01-20 川崎製鉄株式会社 nozzle header
US5376312A (en) * 1991-04-18 1994-12-27 Dri Steem Humidifier Company Rapid absorption steam humidifying system
US5795214A (en) * 1997-03-07 1998-08-18 Cold Jet, Inc. Thrust balanced turn base for the nozzle assembly of an abrasive media blasting system
US5942163A (en) * 1997-06-03 1999-08-24 Armstrong International, Inc. Low pressure jacketed steam manifold
US6227526B1 (en) 1998-04-07 2001-05-08 Pure Humidifier Co. Steam distribution device and method
US6065740A (en) * 1998-04-07 2000-05-23 Pure Humidifier Co. Steam distribution device and method
US6488219B1 (en) * 1999-07-21 2002-12-03 D. Scott Herr Steam humidifier with pressure variable aperture
US7150100B2 (en) * 2004-07-09 2006-12-19 Armstrong International, Inc. Method of forming a jacketed steam distribution tube
US7744068B2 (en) * 2006-09-13 2010-06-29 Dristeem Corporation Insulation for a steam carrying apparatus and method of attachment thereof
US8534645B2 (en) 2007-11-13 2013-09-17 Dri-Steem Corporation Heat exchanger for removal of condensate from a steam dispersion system
CA2644003C (en) 2007-11-13 2014-09-23 Dri-Steem Corporation Heat transfer system including tubing with nucleation boiling sites
US8534644B2 (en) * 2008-01-16 2013-09-17 Dri-Steem Corporation Quick-attach steam dispersion tubes and method of attachment
EP2442040B1 (en) * 2010-10-12 2014-01-15 Carel Industries S.p.A. Steam distributor tube for airhumidifier comprising outer shell for thermally shielding
CN102564204B (en) * 2010-12-08 2016-04-06 杭州三花微通道换热器有限公司 Refrigerant distributing device and the heat exchanger with it
US10088180B2 (en) 2013-11-26 2018-10-02 Dri-Steem Corporation Steam dispersion system
CA2943020C (en) 2015-09-23 2023-10-24 Dri-Steem Corporation Steam dispersion system
CN110285519B (en) * 2019-06-25 2021-11-02 北京强度环境研究所 Dry steam humidifier

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DE2245638B1 (en) * 1972-03-02 1973-07-26 Gebrüder Sulzer AG, Winterthur (Schweiz) STEAM PIPE FOR AIR HUMIDIFICATION
DE2435224A1 (en) * 1973-07-23 1975-02-20 Sarco Co STEAM FURNISHED HUMIDIFIER
DE2552633A1 (en) * 1975-11-24 1977-06-02 Wieber Horst Fa Asa Steam injection type air conditioning humidifier - has purifying activated carbon chamber integrally within dry steam chamber
DD134138A1 (en) * 1977-12-08 1979-02-07 Jochen Kuehnel STEAM DISTRIBUTION

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Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3724180A (en) * 1971-01-22 1973-04-03 Environmental Ind Inc Steam humidifier with centrifugal separator
DE2245638B1 (en) * 1972-03-02 1973-07-26 Gebrüder Sulzer AG, Winterthur (Schweiz) STEAM PIPE FOR AIR HUMIDIFICATION
DE2435224A1 (en) * 1973-07-23 1975-02-20 Sarco Co STEAM FURNISHED HUMIDIFIER
DE2552633A1 (en) * 1975-11-24 1977-06-02 Wieber Horst Fa Asa Steam injection type air conditioning humidifier - has purifying activated carbon chamber integrally within dry steam chamber
DD134138A1 (en) * 1977-12-08 1979-02-07 Jochen Kuehnel STEAM DISTRIBUTION

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0823597A1 (en) * 1996-08-08 1998-02-11 Eaton-Williams Group Limited Steam outlet assembly

Also Published As

Publication number Publication date
DE7926840U1 (en) 1980-03-13
US4265840A (en) 1981-05-05

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