US3876398A - Gas washing and cleaning device - Google Patents

Gas washing and cleaning device Download PDF

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Publication number
US3876398A
US3876398A US435412A US43541274A US3876398A US 3876398 A US3876398 A US 3876398A US 435412 A US435412 A US 435412A US 43541274 A US43541274 A US 43541274A US 3876398 A US3876398 A US 3876398A
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United States
Prior art keywords
gas
tube
vessel
liquid
washing
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Expired - Lifetime
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US435412A
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English (en)
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Lutz Leisegang
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Individual
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Individual
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D47/00—Separating dispersed particles from gases, air or vapours by liquid as separating agent
    • B01D47/02—Separating dispersed particles from gases, air or vapours by liquid as separating agent by passing the gas or air or vapour over or through a liquid bath
    • B01D47/025—Separating dispersed particles from gases, air or vapours by liquid as separating agent by passing the gas or air or vapour over or through a liquid bath by contacting gas and liquid with a static flow mixer

Definitions

  • a tube leads into the vessel and has its Fleld of Search 55/165 lower end disposed above the surface level of washing 55/218-2191 248-249 41 1-412; liquid in the vessel at variable distance, for receiving a 261/62 119 gas-liquid droplets mixture; a baffle type separator is disposed adjacent the upper end of the tube to sepa- I References Cted rate cleaned gas from liquid; a conical stopper, prefer- UNITED STATES PATENTS ably with a 15 apex angle, is disposed adjacent the 912,167 2 1909 Potter 55/230 x lower end of the tube- Partially Projecting into the 2.027.636 1/1936 DeBolt....
  • the present invention relates to a wet washing and cleaning device for gases having a vessel partially filled with washing liquid and provided with means for charging the vessel with dust containing gas.
  • Washing and cleaning devices of this type include, furthermore, a tube passing into the vessel and terminating therein bu't above the surface level of the liquid.
  • the "tube picks up the gas as forced into the vessel but mixed with liquid droplets.
  • the upper end of the tube faces a separator baffle.
  • the particular tube can be constructed as a venturi pipe.
  • the performance and throughput of such a device is determined by the energy expended for washing. This follows from the fact that on the one hand the velocity of the gas introduced into the device is one parameter of intensity of washing, while the amount of liquid-carried along by the introduced flow of gas is another parameter, but that again depends also on the gas velocity.
  • the washing energy/intensity is, therefore, hardly subject to control except through changing the gas pressure, but that in turn effects directly the throughput. Therefore, washing intensity of the known equip ment is not adjustable independently from throughput.
  • a gas washing and cleaning device having a vessel and a tube projecting into the vessel above the surface level of washing liquid therein and having a baffie for separating gas and liquid at the outer and upper end of the tube.
  • the specific improvement is comprised of a conical stopper which can be lifted and lowered in relation to the lower end of the tube.
  • the distance of the lower tube end from the liquid level is adjustable.
  • the conical stopper establishes an annular gap between the stopper itself and the tube end, and this gap is adjustable through lifting and lowering of the stopper.
  • the velocity of the gas leaving the vessel and to be washed and cleaned can be adjusted by adjusting the width of the annular gaps without modifying gas pressure and throughput.
  • the adjust ment covers in fact a rather large range, including velocities as used in high performance venturi washing devices.
  • These conditions may include variations in gas volume and pressure, and the said gap and distance adjustment compensates such variations in as much as they affect optimum cleaning and washing.
  • the apex angle of the conical stopper may be about It was found that such an angle changes the actual flow conditions very little, when the stopper is lifted or lowered in relation to the tubes exit.
  • FIG. 1 is a schematic view of a washing and cleaning device in accordance with thepreferred embodiment of the invention.
  • FIG. 2 is a schematic view of a modified separation baffle
  • FIG. 3 is a top view of the separation b'affle of FIG. 2
  • I V FIG. 4 shows a modified stopper-tube assembly for use in an otherwise unmodified device as shown in FIG. 1.
  • FIG. 1 shows a cylindrical vessel 2, into which gas is fed via inlet 1.
  • the gas is distributed around a tube 3 and leaves the interior of the vessel through the lower end 3a of the tube. That lowerend is located a certain distance above the surfacelevel 6a of a washing liquid 6a in the vessel.
  • a conical stopper 4 is provided at the lower end of tube 3 and projects partially into the interior of the tube thereby establishing an annular gap, through which the gas leaves the vessel in an up direction.
  • a separate baffle system 5 is provided opposite the 'upper the end of tube 3, which system'includes plural baffle plates.
  • the gas plus liquid droplets mixture as leaving the vessel through tube 3 flows therein in updirection and impacts against the baffles; the liquid droplets are separated from the stream by mass (inertia) forces.
  • FIG. 1 shows specifically a cylindrical tube 3 with conical stopper and one can readily see that lowering and lifting of the stopper changes the annular, crosssectional area for passage of gas plus liquid droplets into tube 3.
  • the lifting and lowering device may be comprised of a threaded spindle 4a, threadedly received in a bore in the bottom of vessel 6 so that the lower end of spindle 4a is externally accessible for lowering and lifting the stopper. There must be, of course, a liquid seal interposed.
  • FIG. 4 shows a somewhat modified version with a conical or flared lower end 3' of matching angle in relation to the stopper cone 4'.
  • the flow path control is more accurate in that manner.
  • Lowering and lifting of the stopper can be carried out analogously as explained a tube in the vessel and having its lower end disposed with reference to FIG. 1. adjacent and above the surface level of washing liq-
  • the ratio of liquid to gas (air), for a given gap width uid in the vessel and joined to the vessel by a wall as between stopper and tube end, is determined primarfor receiving the gas-liquid droplets mixture as proily by the distance of tube end 3a from surface level 6a.
  • tube 3 may have a threaded portion side of the upflow in said tube; a movably adjustand is threadedly received in the top wall of vessel 2 unable conical stopper disposed adjacent the lower.
  • FIG. 2 and 3 show modified baffle arrangement, 5, means for lifting and lowering the stopper to obtain which can be used in conjunction with the invention. variation in the width of said gap for obtaining ad-
  • the invention is not limited to the embodiments dejustment of the velocity of the gas-droplet mixture scribed above but all I changes and modifications as entering the tube; and thereof not constituting departures from the spirit and means for varying the distance between the surface scope of the invention are intended to be included.
  • Gas washing and cleaning device comprising a vessired ratio of liquid to gas in the mixture. sel partially filled with washing liquid; 2.
  • the means for varying includedfrom the washing liquid to obtain a mixture of liqing means for lifting or lowering the tube in the vessel. uid droplets and gas whereby the gas is cleaned;

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Separation Of Particles Using Liquids (AREA)
  • Separating Particles In Gases By Inertia (AREA)
  • Cleaning By Liquid Or Steam (AREA)
  • Cleaning In General (AREA)
US435412A 1973-01-16 1974-01-22 Gas washing and cleaning device Expired - Lifetime US3876398A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2302464A DE2302464B2 (de) 1973-01-16 1973-01-16 Naßwäscher

Publications (1)

Publication Number Publication Date
US3876398A true US3876398A (en) 1975-04-08

Family

ID=5869348

Family Applications (1)

Application Number Title Priority Date Filing Date
US435412A Expired - Lifetime US3876398A (en) 1973-01-16 1974-01-22 Gas washing and cleaning device

Country Status (4)

Country Link
US (1) US3876398A (ja)
JP (1) JPS5063566A (ja)
DE (1) DE2302464B2 (ja)
ES (1) ES457926A3 (ja)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5215560A (en) * 1992-02-10 1993-06-01 Lee Nam H Air filtering system
US20030201552A1 (en) * 2002-04-30 2003-10-30 Chuang Shuo Wei Adjustable bubble generator practical for use as a relief valve

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6273576B2 (ja) * 2014-03-05 2018-02-07 有限会社桐山製作所 気体含有成分除去採取装置

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US912167A (en) * 1907-06-19 1909-02-09 Gen Electric Jet-condenser.
US2027636A (en) * 1935-04-03 1936-01-14 Bolt Robert E De Air cleaner
US2621754A (en) * 1949-04-12 1952-12-16 Cons Mining & Smelting Co Gas scrubber
US2638181A (en) * 1949-05-31 1953-05-12 Farm Production Engineers Inc Mechanism for separating air-borne materials
US3199267A (en) * 1961-01-19 1965-08-10 Bischoff Gottfried Gas scrubber
US3386229A (en) * 1965-07-22 1968-06-04 Joy Mfg Co Apparatus and method for treatment of gases
US3411271A (en) * 1965-10-07 1968-11-19 Bahco Ab Apparatus for bringing a liquid into contact with a gas or vice versa
US3517485A (en) * 1968-01-04 1970-06-30 Modern Equipment Co Apparatus for treating gases
US3626672A (en) * 1969-04-14 1971-12-14 Amercoat Corp Gas scrubber apparatus
US3713277A (en) * 1971-01-15 1973-01-30 Sackett & Sons Co A J Fog impingement scrubbing system

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US912167A (en) * 1907-06-19 1909-02-09 Gen Electric Jet-condenser.
US2027636A (en) * 1935-04-03 1936-01-14 Bolt Robert E De Air cleaner
US2621754A (en) * 1949-04-12 1952-12-16 Cons Mining & Smelting Co Gas scrubber
US2638181A (en) * 1949-05-31 1953-05-12 Farm Production Engineers Inc Mechanism for separating air-borne materials
US3199267A (en) * 1961-01-19 1965-08-10 Bischoff Gottfried Gas scrubber
US3386229A (en) * 1965-07-22 1968-06-04 Joy Mfg Co Apparatus and method for treatment of gases
US3411271A (en) * 1965-10-07 1968-11-19 Bahco Ab Apparatus for bringing a liquid into contact with a gas or vice versa
US3517485A (en) * 1968-01-04 1970-06-30 Modern Equipment Co Apparatus for treating gases
US3626672A (en) * 1969-04-14 1971-12-14 Amercoat Corp Gas scrubber apparatus
US3713277A (en) * 1971-01-15 1973-01-30 Sackett & Sons Co A J Fog impingement scrubbing system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5215560A (en) * 1992-02-10 1993-06-01 Lee Nam H Air filtering system
US20030201552A1 (en) * 2002-04-30 2003-10-30 Chuang Shuo Wei Adjustable bubble generator practical for use as a relief valve
US6655664B2 (en) * 2002-04-30 2003-12-02 Shuo Wei Chuang Adjustable bubble generator practical for use as a relief valve

Also Published As

Publication number Publication date
ES457926A3 (es) 1978-06-01
DE2302464A1 (de) 1974-07-18
JPS5063566A (ja) 1975-05-30
DE2302464B2 (de) 1980-04-03

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