US3804383A - Apparatus for introducing a mist of water into a gas - Google Patents

Apparatus for introducing a mist of water into a gas Download PDF

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Publication number
US3804383A
US3804383A US00269583A US26958372A US3804383A US 3804383 A US3804383 A US 3804383A US 00269583 A US00269583 A US 00269583A US 26958372 A US26958372 A US 26958372A US 3804383 A US3804383 A US 3804383A
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US
United States
Prior art keywords
blade wheel
gas
gas inlet
conduit section
ventilator
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
US00269583A
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English (en)
Inventor
Diepenbroek A Van
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.)
Bronswerk Apparatenbouw BV
Original Assignee
Bronswerk Apparatenbouw BV
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Filing date
Publication date
Application filed by Bronswerk Apparatenbouw BV filed Critical Bronswerk Apparatenbouw BV
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Publication of US3804383A publication Critical patent/US3804383A/en
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Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • F24F6/02—Air-humidification, e.g. cooling by humidification by evaporation of water in the air
    • F24F6/06—Air-humidification, e.g. cooling by humidification by evaporation of water in the air using moving unheated wet elements

Definitions

  • ABSTRACT An apparatus for introducing a mist of water into a gas, in particular into air, comprising a rotatably supported blade wheel including a plurality of blades carried by an end plate and a plurality of axially spaced rings with sharp outside edges attached to and projecting from the blades, perpendicular to the axis of rotation of the blade wheel and extending along the circumference of the same, driving means for the blade wheel, a stationary cage coaxial with the blade wheel and surrounding the blades, a gas inlet at the end of the blade wheel remote from the end plate, and at least one water supply conduit discharging into the gas inlet, so that the gas drawn into the inlet leavesthe blade wheel in humidified condition through the spaces between the rings.
  • the blade wheel is spacedly arranged within a conduit section to which the gas to be treated is supplied by a ventilator, in such manner that a portion of the gas stream is drawn into the blade wheel and is humidified in the same, and that the humidified gas leaving the blade wheel is admixed to the gas stream flowing around the blade wheel.
  • the invention relates to an apparatus for introducing a mist of water into a gas, in particular into air, comprising a rotatably supported blade wheel including a plurality of blades carried by an end plate and a plurality of axially spaced rings with sharp outside edges attached to and projecting from the blades, perpendicular to the axis of rotation of the blade wheel and extending along the circumference of the same, driving means for the blade wheel, a stationary cage coaxial with the blade wheel and surrounding the blades, a gas inlet at the end of the blade wheel remote from the end plate, and at least one water supply conduit discharging into the gas inlet, so that the gas drawn into the gas inlet leaves the blade wheel in humidified condition through the spaces between the rings.
  • the invention has the object to provide an apparatus for humidifying a gas, in particular air, having important advantages in this respect.
  • the blade wheel is spacedly arranged within a conduit section to which the gas to be treated is supplied by a ventilator, in such manner that a portion of the gas stream is drawn into the blade wheel and is humidified in the same. and that the humidified gas leaving the blade wheel is admixed to the gas stream flowing around the blade wheel.
  • the blade wheel has only a slight influence on the pressure of the humidified gas, so that the blade wheel may rotate at a high speed without any significant increase of the pressure, whereby the water is introduced with a high efficiency.
  • the amount of water introduced per unit of time into the gas flowing through a blade wheel with given dimensions is much larger than in the known apparatus.
  • the degree of supersaturation of the gas drawn into the blade wheel is a multiple of the finally desired value; the required supersaturation, for instance of 4 g of water per kg'of gas, is obtained by admixing the heavily supersaturated gas to the gas stream flowing around the blade wheel.
  • the gas inlet to the blade wheel is at the back side of the same, as seen in the main direction of flow of the gas stream in the conduit section.
  • the ventilator may be arranged before the blade wheel, as seen in the main direction of flow of the gas'stream in the conduit section.
  • a stationary gas inlet ring is arranged immediately behind the blade wheel, as seen in the main direction of flow of the gas stream in the conduit section.
  • At least one water supply conduit may debouch into this gas inlet ring.
  • a stationary conical guide surface before the blade wheel as seen in the main direction of flow of the gas stream in the conduit section, in such manner that the guide surface expands towards the blade wheel and terminates in the immediate vicinity of the same, and that the maximum diameter of the guide surface is at least equal to the external diameter of the cage.
  • FIG. 1 shows a front view of an apparatus according I to the invention.
  • the drawing shows apreferred embodiment of an apparatus for introducing a mist of water into a gas, in particular into air, in such manner that a supersaturated gas is obtained.
  • This apparatus comprises a blade wheel 1 including an end plate 2, to which a small number of blades 3 are attached.
  • the blades 3 are connected with a plurality of rings 4 having sharp outside edges; these rings are perpendicular to the axis of rotation of the blade wheel I, extend along the circumference of the blade wheel and project from the blades 3.
  • the blade wheel 1 is driven by a shaft 6 carrying a pulley 7, which is coupled by means of ropes with a sec ond pulley 8 driven by a motor 9.
  • the blade wheel 1 is arranged in a cylindrical conduit section 10 coaxial with the blade wheel 1 and having a diameter several times larger than the diameter of the blade wheel.
  • the gas to be treated is drawn into the conduit section 10 by means of an axial ventilator 11 having a hollow driving shaft 12 surrounding the shaft 6 of the blade wheel 1.
  • the hollow driving shaft 12 carries a pulley 13 coupled by means of ropes with a pulley I 14, which is driven by a second motor 15.
  • the hollow driving shaft 12 On one side of the axial ventilator 11 the hollow driving shaft 12 is supported by a bearing 16 carried by means of arms 17 by the conduit section 10. On the other side of the axial ventilator 11 the hollow driving shaft 12 is supported by a bearing 18 carried by a stationary conical guide surface 19 expanding towards the blade wheel 1 and terminating in the immediate vicinity of the end blade 2.
  • the maximum diameter of the guide surface 19 is at least equal to and preferably slightly larger than the external diameter of the cage 5.
  • the guide surface 19 is carried by the conduit section 10 by means of supporting arms 20.
  • a stationary gas inlet ring 21 carried by the conduit section 10 by means of supporting arms 22 is arranged on the other side of the blade wheel 1.
  • a plurality of water supply conduits 23 discharge into the gas inlet ring 21; the conduits 23 are provided with nozzles (not shown in the drawings), which may be arranged partially radially, partially axially and partially tangentially, in order to get a satisfactory water distribution.
  • the gas to be treated is transported through the conduit section 10 in the direction of the arrowsby the ventilator 1 1.
  • the gas inlet ring 21 is arranged behind the blade wheel 1, as seen in the main direction of flow of the gas stream in the conduit section 10, whereas the axial ventilator l l and the guide surface 19 are arranged before the blade wheel 1.
  • a portion of the gas stream flowing past the blade wheel 1 is drawn into the blade wheel through the gas inlet ring 21 and is sprayed with water in the inlet ring. This water is carried along by the gas into the blade wheel 1 and is thrown away with great force by the rings 4, so that the round rods of the cage surrounding the blade wheel are hit by the water, whereby the water is spread into a fine mist.
  • the desired supersaturation of the gas stream is obtained due to the fact that the gas leaving the blade wheel 1 is admixed to the gas stream flowing around the blade wheel.
  • the cylindrical conduit section is connected behind the blade wheel 1 through an adapter 24 with a conduit 25 having a rectangular cross-section and containing a drop collector 26.
  • An outlet 27 for the superfluous water is provided at the bottom of the rectangular conduit 25.
  • An apparatus for introducing a mist of water into a gas, in particular into air comprising a rotatably supported blade wheel including a plurality of blades carried by an end plate and a plurality of axially spaced rings with sharp outside edges attached to and projecting from the blades, perpendicular to the axis of rotation of the blade wheel and extending along the circumference of the same, driving means for the blade wheel, a stationary cage coaxial with the blade wheel and surrounding the blades, a gas inlet at the end of the blade wheel remote from the end plate, and at least one water supply conduit discharging into the gas inlet, so that the gas drawn into the gas inlet leaves the blade wheel in humidified condition through the spaces between the rings, the blade wheel being spacedly arranged within a conduit section to which the gas to be treated is supplied by a ventilator, in such manner that a portion of the gas stream is drawn into the blade wheel and is humidified in the same, and that the humidified gas leaving the blade wheel is admixed to the gas stream flowing
  • a stationary conical guide surface is arranged before the blade wheel as seen in the main direction of flow of the gas stream in the conduit section, in such manner that the guide surface expands towards the blade wheel and terminates in the immediate vicinity of the same, and that the maximum diameter of the guide surface is at least equal to the external diameter of the cage.
  • An apparatus for introducing a mist of water into a gas, in particular into air comprising a rotatably supported blade wheel including a plurality of blades carried by an end plate and a plurality of axially spaced rings with sharp outside edges attached to and projecting from the blades, perpendicular to the axis of rotation of the blade wheel and extending along the circumference of the same, driving means for the blade wheel, a stationary cage coaxial with the blade wheel and surrounding the blades, a gas inlet at the end of the blade wheel remote from the end plate, and at leastone water supply conduit discharging into the gas inlet, so that the gas drawn into the gas inlet leaves the blade wheel in humidified condition through the spaces between the rings, the blade wheel being coaxially and spacedly arranged with a conduit section which has a diameter which is several times larger than the diameter of the blade wheel, to which conduit section the gas to be treated is supplied by an axial ventilator, said gas inlet including a stationary gas inlet ring arranged immediately behind the blade wheel in

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Treating Waste Gases (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Air Humidification (AREA)
US00269583A 1971-07-09 1972-07-07 Apparatus for introducing a mist of water into a gas Expired - Lifetime US3804383A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL717109489A NL146283B (nl) 1971-07-09 1971-07-09 Inrichting voor het bevochtigen van een gas, in het bijzonder van lucht.

Publications (1)

Publication Number Publication Date
US3804383A true US3804383A (en) 1974-04-16

Family

ID=19813583

Family Applications (1)

Application Number Title Priority Date Filing Date
US00269583A Expired - Lifetime US3804383A (en) 1971-07-09 1972-07-07 Apparatus for introducing a mist of water into a gas

Country Status (7)

Country Link
US (1) US3804383A (enExample)
CS (1) CS163281B2 (enExample)
DD (1) DD101486A5 (enExample)
DE (1) DE2231804A1 (enExample)
FR (1) FR2145526B1 (enExample)
GB (1) GB1362338A (enExample)
NL (1) NL146283B (enExample)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4038347A (en) * 1973-11-19 1977-07-26 Mickley Thomas B Humidifying apparatus
US4278617A (en) * 1980-03-03 1981-07-14 Envirotech Corporation Humidifier
US20110277271A1 (en) * 2010-03-31 2011-11-17 Feng Guo Spray Centrifugal Dedusting Fan
US20120160745A1 (en) * 2010-12-24 2012-06-28 Hon Hai Precision Industry Co., Ltd. Feeding device for injection molding device
US20130181062A1 (en) * 2011-10-06 2013-07-18 John C. Zimmer Misting Fan System and Method
CN107505238A (zh) * 2017-09-19 2017-12-22 南京林业大学 一种电机驱动的转笼雾化系统

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2688376A (en) * 1951-10-27 1954-09-07 Daniel T Oertel Air scrubber
US2698745A (en) * 1950-12-26 1955-01-04 Howard Earl Air cleaner
US2709578A (en) * 1951-06-15 1955-05-31 Holderness John Henry Rotary impeller humidifier

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2698745A (en) * 1950-12-26 1955-01-04 Howard Earl Air cleaner
US2709578A (en) * 1951-06-15 1955-05-31 Holderness John Henry Rotary impeller humidifier
US2688376A (en) * 1951-10-27 1954-09-07 Daniel T Oertel Air scrubber

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4038347A (en) * 1973-11-19 1977-07-26 Mickley Thomas B Humidifying apparatus
US4278617A (en) * 1980-03-03 1981-07-14 Envirotech Corporation Humidifier
US20110277271A1 (en) * 2010-03-31 2011-11-17 Feng Guo Spray Centrifugal Dedusting Fan
US8528165B2 (en) * 2010-03-31 2013-09-10 Feng Guo Spray centrifugal dedusting fan
US20120160745A1 (en) * 2010-12-24 2012-06-28 Hon Hai Precision Industry Co., Ltd. Feeding device for injection molding device
US20130181062A1 (en) * 2011-10-06 2013-07-18 John C. Zimmer Misting Fan System and Method
US9435555B2 (en) * 2011-10-06 2016-09-06 Tech Oil Products, Inc. Misting fan system and method
CN107505238A (zh) * 2017-09-19 2017-12-22 南京林业大学 一种电机驱动的转笼雾化系统
CN107505238B (zh) * 2017-09-19 2024-03-26 南京林业大学 一种电机驱动的转笼雾化系统

Also Published As

Publication number Publication date
FR2145526A1 (enExample) 1973-02-23
DD101486A5 (enExample) 1973-11-05
NL7109489A (enExample) 1973-01-11
CS163281B2 (enExample) 1975-08-29
DE2231804A1 (de) 1973-02-08
NL146283B (nl) 1975-06-16
FR2145526B1 (enExample) 1976-08-13
GB1362338A (en) 1974-08-07

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