US2522005A - Degasifier - Google Patents

Degasifier Download PDF

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Publication number
US2522005A
US2522005A US709940A US70994046A US2522005A US 2522005 A US2522005 A US 2522005A US 709940 A US709940 A US 709940A US 70994046 A US70994046 A US 70994046A US 2522005 A US2522005 A US 2522005A
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US
United States
Prior art keywords
liquid
gas
vessel
inlet
outlet
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
US709940A
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English (en)
Inventor
Jr Robert A Whitlock
James E Dymond
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.)
Automatic Pump and Softener Corp
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Automatic Pump and Softener Corp
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 Automatic Pump and Softener Corp filed Critical Automatic Pump and Softener Corp
Priority to US709940A priority Critical patent/US2522005A/en
Priority to FR998343D priority patent/FR998343A/fr
Priority to BE492091D priority patent/BE492091A/xx
Application granted granted Critical
Publication of US2522005A publication Critical patent/US2522005A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D19/00—Degasification of liquids
    • B01D19/0042—Degasification of liquids modifying the liquid flow
    • B01D19/0047—Atomizing, spraying, trickling

Definitions

  • This invention relates tot improvements in the degasification of liquids, ⁇ particularly to: an im.- proved method and apparatus for removing dissolved gas instepwise fashion.
  • An object of the invention is the ⁇ provision of amethod andv means for removing .absorbed gas from. a liquid withoutthe use of Aany power source other than the pressure energy in the liquid itself.
  • the invention contemplates diifus, ing the liquid into a low pressurearea where an initial,l partial degasification is caused to take place, venting off the removed gas. and then passing the liquid through a, vessel which exposes a large surface area of the liquidto further degasify it, and then venting the gas from the vessel.
  • Fig. 2 is a sectional View .of Figure l taken along line 21-2 showing the perforated nozzle inthev aspirator;
  • Fig. 3 is a sectional View of Figure 1 taken'along I
  • a vessel I,*containing a bed 2 of coke or other material for'the liquid to percolate over is provid-edwith a liquid inlet 3 and outlet 4 and withan air inlet- 6 and outlet 'I.
  • the air inlet is provided with a tubular screen 8 which in this instance serves to distribute atmospheric air across the bottom of thev bed 2.
  • the liquid under treatment enters the system under ⁇ normal. water systempressure through av pipe l Iv1 in the example given thispi-pe being connected to an anion exchanger (not shown) and is directed through an injector comprising a nozzle I 2 and a ⁇ diifuser tube i3.
  • an injector comprising a nozzle I 2 and a ⁇ diifuser tube i3.
  • the liquid should pass through the nozzle at twentyve .pounds or more per square inch.
  • the nozzle i2 is provided with a number of relatively small perforations I4 out of Which the liquid discharges under relatively pressure, the individual streams beingglso arranged as to break up or atomize-in close proxyV imity to the nozzle into a spray. This is facili-l tated by the provisicnof means for breaking up.
  • a nozzle that directs the liquid into diffuser tube I3- of the injector in a high. velocity turbum lentmanner is best for: effecting this primary clegasiiication.
  • This high velocity diffusion ofv fluid into the tube t3 creates a low pressure in a suction conduit. lo through. which air is' drawn through inlet 6 together with gas released from the liquid in the vessel in the secondary degasication; this latter gas composition is entrained in the fluid entering the diffuser tube I3 and is carried to a separation point, in this instance az, T II which functions as a primary'separation chamber from which the mixture of gases is vented to the atmosphere or to a suitable receiver through. vent pipe I 8.
  • the partially degasied liquid is directed downward through conduit ISl into the vessel I.
  • a liquid seal having a level shown at 2
  • the liquid pipe I3 was 11/2" in diameter and 18 long, the' Water pressure in pipe Il was sixty pounds per square inch, the perforations i4 were No. kiid f drill holes disposed at diverging angles of approximately 5 degrees with the longitudinal centerline of the nozzel and the iiow rate of water through the bed was 4.3 gallons per minute foot of 4cross-sectional area.
  • the effectiveness of the degasification is illustrated by the following figures which have been determined from actual tests: With the inlet water in conduit Il containing' 200 parts per million of absorbed carbon dioxide gas, the water in the liquid seal 2i showed a gas content of 75 P. P.
  • the sweeping gas inlet 6 may kie/omitted altogetherl and the vessel l maintained under a suitable vacuum by the aspirator .9. While the vesselv l has been shown packed with a bed of coke or like particles for the liquid to trickle down over, other ⁇ modifications-of this varrangement may be satisfactorily employed. For example, a series of.
  • screens, wood slats, balls, etc. may be used to expose the greatest possible liquid surface area for release of the absorbed gas.
  • a a method of removing a dissolved gas from a liquid a step of spraying a stream of said liquid to atomiae the liquid and entrain a non-condensible gas of different composition from said dissolved gas into said stream to at least partially eiect the removal of said one gas from said liquid; a subsequent step of venting the mixture of gases from said stream and thereafter directing said liquid through a container countercurrent to the flow of said gas of different composition to eieet a further substantial removal of said dissolved gas from thev liquid.
  • a method of removing a gas from a liquid the steps of: dispersing a, stream of the liquid to entrain a stream of air and to draw the latter through a chamber under sub-atmospheric pressure, the dispersion of said liquid stream and the entrainment of said air stream being eiective to remove at least a portion of said gas from the liquid; venting oli the removed gas and entrained air; and passing the partly degasied liquid through said chamber in contact with the air stream at sub-atmospheric pressure to further eiect the removal of said gas.
  • a vessel having a liquid inlet and outlet and s, having a gas outlet, aspirator means connected to a source of said liquid under pressure for dispersing said liquid to eect a partial degasifly cation thereof, said aspirator means having a suction inlet connected to said vessel gas outlet to withdraw gas therefrom to reduce the pressure increasing the surface area of said liquid as it ⁇ passes therethrough to enect a further degasiflcation thereof, said gas being withdrawn through said gas outlet by said aspirator means.
  • a vessel having a liquid inlet and outlet and having a gas inlet and outlet, an aspirator connected to a source of said liquid under pressure for directing said liquid into an initial separator to eiect an initial partial degasication thereof, said aspirator having a suction inletcon-v nected to said vessel gas outlet to withdraw gas therefrom and entrain it in the dispersed liquid flowing to the initial separator, said separator having a vent for separating gas from the partially degasied liquid, a conduit connecting the separator with the vessel, said vessel having means therein for spreading said liquid out over an increased surface area in the presence of gas entering said gas inlet to effect a inal degasication of the liquid, the gas removed from the liquid in the vessel being swept out-0f the gas outlet by the gas entering said gas inlet.
  • An apparatus for removing carbon dioxide and other gas from water comprising a vessel having a liquid inlet adjacent the Atop thereof and a liquid outlet in the lower portion thereof and also having an air inlet in the lower portion of the vessel and a gas outlet in the upper portion thereof, an aspirator connected to a source of water containing said gas under pres' sure for directing the water into an initial sep arator to eiect partial decarbonation thereof, said aspirator having a suction inlet connected to the gas outlet of said vessel to draw gas upwardly through the vessel from the air inlet and entrain it in the dispersed water ilowing from the aspirator, said separator having a vent for the escape of air and gas therefrom, means for connecting the separator with the water inlet of the vessel, said means including a trap for preventing return flow of air to the vessel, and means disposed in the vessel for spreading the water over a wide surface area in counterilow relation with the air entering the air inlet to effect iinal removal of the gas from the liquid by the air
  • a vessel having a liquid inlet and outlet and having a gas inlet and outlet, an aspirator having a plurality of small openings providing communication between a source of said liquid under pressure and a diiTuser tube for spraying said liquid in a plurality of streams into said diuser tube, said aspirator having a suction inlet connected to said vessel gas outlet to draw gas therefrom to reduce the pressure in said vessel and entrain the gas in the spray entering the diluser tube, the spraying of said liquid being effective to partially degasify said liquid,
  • said diiuser tube discharging into an initial separator effective to collect the partially degasined liquid and vent the gases therefrom', said initial separator having connection with said vessel to convey thepartially degasied liquid thereto, said vessel having a bed of material therein for said liquid to flow over to expose a large surface area of the liquid to gas drawn into the gas inlet and through the bed by the action of said aspirator.
  • a vessel having a liquid inlet and outlet and a gas outlet, jet means connected to a source of said liquid under pressure for atomizing said liquid into a relatively lower ⁇ pressure zone to effect partial removal of the gas therefrom by effervescence, means connecting said low pressure zone to the gas outlet of said vessel to evacuate gas therefrom, a separator for separating the removed gas from the partially degasied liquid, means for venting the gas from said separator, conduit means for thereafter conveying the par'- tially degasied liquid into said vessel to further degasify it, and a liquid seal in said conduit means to prevent the cycling of gas from said liquid inlet to said gas outlet.
  • Apparatus for removing an undesired gas from liquid containing the same comprising a vessel having a liquid inlet and outlet, means connected to a source. of said liquid under pressure for atomizing said liquid and suddenly releasing pressure therefrom into an atmosphere of a gas of different composition to cause circulation of the latter gas through the apparatus and effect at least partial removal of said undesired gas from the liquid by effervescence, means for venting said gas of different composition and admixed undesired gas from the apparatus, and means for thereafter directing the partially degasied liquid through the vessel in a direction counterflow to the aforesaid gas of different composition to effect further removal of the undesirecl gas.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Degasification And Air Bubble Elimination (AREA)
  • Physical Water Treatments (AREA)
US709940A 1946-11-15 1946-11-15 Degasifier Expired - Lifetime US2522005A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
US709940A US2522005A (en) 1946-11-15 1946-11-15 Degasifier
FR998343D FR998343A (fr) 1946-11-15 1949-10-29 Procédé et dispositif pour le dégazage de liquides
BE492091D BE492091A (en)) 1946-11-15 1949-11-09

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US709940A US2522005A (en) 1946-11-15 1946-11-15 Degasifier

Publications (1)

Publication Number Publication Date
US2522005A true US2522005A (en) 1950-09-12

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US709940A Expired - Lifetime US2522005A (en) 1946-11-15 1946-11-15 Degasifier

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US (1) US2522005A (en))
BE (1) BE492091A (en))
FR (1) FR998343A (en))

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2764533A (en) * 1951-05-04 1956-09-25 Oetjen Georg-Wilhelm Degassing and distillation of liquids in vacuum
US3193989A (en) * 1962-02-23 1965-07-13 Bruner Corp Aerating water treatment apparatus
US3248855A (en) * 1962-09-11 1966-05-03 Sulzer Ag Process for separating carbon dioxide from a gas mixture
US3255575A (en) * 1962-05-31 1966-06-14 Texaco Inc Apparatus for obtaining bubble-free sample, and method for obtaining same
US3398507A (en) * 1962-07-27 1968-08-27 Aviat Gmbh Fa Method of producing hypersonic fluid flow
US4518403A (en) * 1983-10-28 1985-05-21 The Standard Oil Company Degasser-desurger unit
US20090178555A1 (en) * 2008-01-14 2009-07-16 Crits George J Pressure in line degassing process in water treatment

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US457917A (en) * 1891-08-18 Apparatus for purifying water
US1612218A (en) * 1922-07-10 1926-12-28 Piron Emil Method of removing air from water
US1725925A (en) * 1924-05-03 1929-08-27 Donald W Kent Treatment of feed water for boilers, condensers, and the like
US1800217A (en) * 1923-07-07 1931-04-14 Babcock & Wilcox Co Method for steam-boiler economizer systems
US1836338A (en) * 1929-04-30 1931-12-15 Buckeye Twist Drill Company Apparatus for purifying liquids
US1916922A (en) * 1929-12-20 1933-07-04 Dow Chemical Co Removing iodine from dispersion in a liquid medium
US1955321A (en) * 1927-09-21 1934-04-17 Ass Elect Ind Vacuum distillation
US2047157A (en) * 1928-08-14 1936-07-07 Rodman Process for purifying oils
US2136774A (en) * 1935-11-07 1938-11-15 Distillation Products Inc Treatment of oils

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US457917A (en) * 1891-08-18 Apparatus for purifying water
US1612218A (en) * 1922-07-10 1926-12-28 Piron Emil Method of removing air from water
US1800217A (en) * 1923-07-07 1931-04-14 Babcock & Wilcox Co Method for steam-boiler economizer systems
US1725925A (en) * 1924-05-03 1929-08-27 Donald W Kent Treatment of feed water for boilers, condensers, and the like
US1955321A (en) * 1927-09-21 1934-04-17 Ass Elect Ind Vacuum distillation
US2047157A (en) * 1928-08-14 1936-07-07 Rodman Process for purifying oils
US1836338A (en) * 1929-04-30 1931-12-15 Buckeye Twist Drill Company Apparatus for purifying liquids
US1916922A (en) * 1929-12-20 1933-07-04 Dow Chemical Co Removing iodine from dispersion in a liquid medium
US2136774A (en) * 1935-11-07 1938-11-15 Distillation Products Inc Treatment of oils

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2764533A (en) * 1951-05-04 1956-09-25 Oetjen Georg-Wilhelm Degassing and distillation of liquids in vacuum
US3193989A (en) * 1962-02-23 1965-07-13 Bruner Corp Aerating water treatment apparatus
US3255575A (en) * 1962-05-31 1966-06-14 Texaco Inc Apparatus for obtaining bubble-free sample, and method for obtaining same
US3398507A (en) * 1962-07-27 1968-08-27 Aviat Gmbh Fa Method of producing hypersonic fluid flow
US3248855A (en) * 1962-09-11 1966-05-03 Sulzer Ag Process for separating carbon dioxide from a gas mixture
US4518403A (en) * 1983-10-28 1985-05-21 The Standard Oil Company Degasser-desurger unit
US20090178555A1 (en) * 2008-01-14 2009-07-16 Crits George J Pressure in line degassing process in water treatment

Also Published As

Publication number Publication date
FR998343A (fr) 1952-01-17
BE492091A (en)) 1949-11-20

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