US3491987A - Valve tray - Google Patents

Valve tray Download PDF

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Publication number
US3491987A
US3491987A US680532A US3491987DA US3491987A US 3491987 A US3491987 A US 3491987A US 680532 A US680532 A US 680532A US 3491987D A US3491987D A US 3491987DA US 3491987 A US3491987 A US 3491987A
Authority
US
United States
Prior art keywords
tray
valve
valves
gas
liquid
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
US680532A
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English (en)
Inventor
John S Eckert
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.)
Saint Gobain Abrasives Inc
Original Assignee
Norton Co
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 Norton Co filed Critical Norton Co
Application granted granted Critical
Publication of US3491987A publication Critical patent/US3491987A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D3/00—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
    • B01D3/14—Fractional distillation or use of a fractionation or rectification column
    • B01D3/16—Fractionating columns in which vapour bubbles through liquid
    • B01D3/163—Plates with valves

Definitions

  • sieve trays Due to their simplicity of design and the absence of moving parts, sieve trays have been used to advantage in gas and liquid contact apparatus. However, the very features which make sieve trays attractive for use in certain applications, impose rather severe limitations on the utility of sieve trays in other mass transfer processes.
  • the tray With floating valves. At low operating gas velocities, these valves remain seated around apertures in the sieve tray, permitting the tray to function as would a standard sieve tray. However, when gas velocities increase, the valves respond thereto, and disengage themselves from the surface of the tray, permitting gas to travel upwardly through the apertures underneath the valves. This permits the modified sieve tray to operate efliciently at higher gas velocities.
  • FIGURE 2 is a schematic section view taken generally along line 2-2 of FIGURE 1;
  • FIGURE 6 is a fragmentary schematic plan view'of a second modification of the present invention.
  • FIGURE 1 shows a fragmentary portion of a mass transfer tray 10, provided with perforations 12, giving the tray the character of a sieve tray.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
  • Lift Valve (AREA)
  • Treating Waste Gases (AREA)
US680532A 1967-11-03 1967-11-03 Valve tray Expired - Lifetime US3491987A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US68053267A 1967-11-03 1967-11-03

Publications (1)

Publication Number Publication Date
US3491987A true US3491987A (en) 1970-01-27

Family

ID=24731492

Family Applications (1)

Application Number Title Priority Date Filing Date
US680532A Expired - Lifetime US3491987A (en) 1967-11-03 1967-11-03 Valve tray

Country Status (4)

Country Link
US (1) US3491987A (enrdf_load_stackoverflow)
DE (1) DE1775492A1 (enrdf_load_stackoverflow)
FR (1) FR1573341A (enrdf_load_stackoverflow)
GB (1) GB1225410A (enrdf_load_stackoverflow)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3591947A (en) * 1968-04-19 1971-07-13 American Air Filter Co Liquid bath gas-cleaning apparatus
US3807711A (en) * 1970-02-27 1974-04-30 Seitetsu Kagaku Co Ltd Tray for fluid contactor apparatus
US4225541A (en) * 1977-12-20 1980-09-30 Vaschuk Valery I Contact tray for mass and heat exchange apparatus
US4290981A (en) * 1978-11-08 1981-09-22 Arno Schramm Exchanger element for bottoms in material exchanger columns
US6799752B2 (en) * 2001-05-03 2004-10-05 Amt International, Inc. Method and apparatus for improving a fractionation process
CN103537109A (zh) * 2012-07-10 2014-01-29 北京先锋创新科技发展有限公司 一种含有气力推动孔的筛浮复合塔板

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2627397A (en) * 1949-08-08 1953-02-03 Phillips Petroleum Co Bubble cap assembly for fractionating apparatus
US3245669A (en) * 1964-04-08 1966-04-12 Koch Eng Co Inc Contact apparatus
US3287004A (en) * 1960-03-25 1966-11-22 Martha C Nutter Valve mechanism for fluid and liquid contact apparatus
US3325155A (en) * 1962-05-07 1967-06-13 Equipment Des Ind Chimiques S Valve tray apparatus

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2627397A (en) * 1949-08-08 1953-02-03 Phillips Petroleum Co Bubble cap assembly for fractionating apparatus
US3287004A (en) * 1960-03-25 1966-11-22 Martha C Nutter Valve mechanism for fluid and liquid contact apparatus
US3325155A (en) * 1962-05-07 1967-06-13 Equipment Des Ind Chimiques S Valve tray apparatus
US3245669A (en) * 1964-04-08 1966-04-12 Koch Eng Co Inc Contact apparatus

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3591947A (en) * 1968-04-19 1971-07-13 American Air Filter Co Liquid bath gas-cleaning apparatus
US3807711A (en) * 1970-02-27 1974-04-30 Seitetsu Kagaku Co Ltd Tray for fluid contactor apparatus
US4225541A (en) * 1977-12-20 1980-09-30 Vaschuk Valery I Contact tray for mass and heat exchange apparatus
US4290981A (en) * 1978-11-08 1981-09-22 Arno Schramm Exchanger element for bottoms in material exchanger columns
US6799752B2 (en) * 2001-05-03 2004-10-05 Amt International, Inc. Method and apparatus for improving a fractionation process
CN103537109A (zh) * 2012-07-10 2014-01-29 北京先锋创新科技发展有限公司 一种含有气力推动孔的筛浮复合塔板

Also Published As

Publication number Publication date
GB1225410A (enrdf_load_stackoverflow) 1971-03-17
DE1775492A1 (de) 1972-03-16
FR1573341A (enrdf_load_stackoverflow) 1969-07-04

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