GB936689A - Improvements relating to vapour traps - Google Patents

Improvements relating to vapour traps

Info

Publication number
GB936689A
GB936689A GB1781961A GB1781961A GB936689A GB 936689 A GB936689 A GB 936689A GB 1781961 A GB1781961 A GB 1781961A GB 1781961 A GB1781961 A GB 1781961A GB 936689 A GB936689 A GB 936689A
Authority
GB
United Kingdom
Prior art keywords
vapour
container
bellows
space
baffles
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
Application number
GB1781961A
Inventor
Eric James Greer
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.)
Associated Electrical Industries Ltd
Original Assignee
Associated Electrical Industries Ltd
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 Associated Electrical Industries Ltd filed Critical Associated Electrical Industries Ltd
Priority to GB1781961A priority Critical patent/GB936689A/en
Publication of GB936689A publication Critical patent/GB936689A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D8/00—Cold traps; Cold baffles
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04F—PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
    • F04F9/00—Diffusion pumps
    • F04F9/06—Arrangement of vapour traps

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)

Abstract

936,689. Vapour traps for vacuum apparatus. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. May 16, 1962 [May 16, 1961], No. 17819/61. Class 71. A vapour trap comprises a tubular container 1, for a coolant, located within a duct 2 to define an outer annular space 6 which is closed or restricted at one end and an inner axial space 11 with thermally conducting baffles 14 which extend from the container partly across the axial space. The stainless steel container is filled with liquid nitrogen through a heat choke 8 and annular space 6 is closed at its upper end by bellows 7. Apertures 4, 5 are connected respectively to a vapour diffusion pump and an evacuated chamber. A spider 13 supports rod 12 and D-shaped baffles 14, e.g. of stainless steel or copper. Vapour diffusing into space 6 is blocked by bellows 7 and also tends to impinge upon and condense upon the baffles. In another embodiment the bellows are replaced by coaxial cylindrical sleeves attached to the upper end of duct 2 and container 1, the sleeves being spaced by a narrow annular channel which provides a tortuous path for the vapour.
GB1781961A 1961-05-16 1961-05-16 Improvements relating to vapour traps Expired GB936689A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1781961A GB936689A (en) 1961-05-16 1961-05-16 Improvements relating to vapour traps

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1781961A GB936689A (en) 1961-05-16 1961-05-16 Improvements relating to vapour traps

Publications (1)

Publication Number Publication Date
GB936689A true GB936689A (en) 1963-09-11

Family

ID=10101777

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1781961A Expired GB936689A (en) 1961-05-16 1961-05-16 Improvements relating to vapour traps

Country Status (1)

Country Link
GB (1) GB936689A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3304731A (en) * 1964-03-13 1967-02-21 Granville Phillips Company High vacuum cold trap
FR2545588A1 (en) * 1983-05-05 1984-11-09 Air Liquide REFRIGERATION APPARATUS AND REFRIGERATION TRAP COMPRISING SUCH AN APPARATUS
EP0167040A1 (en) * 1984-06-16 1986-01-08 Forschungszentrum Jülich Gmbh Method and apparatus for extracting a gas component from a gas mixture by refrigeration

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3304731A (en) * 1964-03-13 1967-02-21 Granville Phillips Company High vacuum cold trap
FR2545588A1 (en) * 1983-05-05 1984-11-09 Air Liquide REFRIGERATION APPARATUS AND REFRIGERATION TRAP COMPRISING SUCH AN APPARATUS
EP0167040A1 (en) * 1984-06-16 1986-01-08 Forschungszentrum Jülich Gmbh Method and apparatus for extracting a gas component from a gas mixture by refrigeration

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