JPS57131879A - Vacuum exhaust device and trap for the same - Google Patents

Vacuum exhaust device and trap for the same

Info

Publication number
JPS57131879A
JPS57131879A JP1662981A JP1662981A JPS57131879A JP S57131879 A JPS57131879 A JP S57131879A JP 1662981 A JP1662981 A JP 1662981A JP 1662981 A JP1662981 A JP 1662981A JP S57131879 A JPS57131879 A JP S57131879A
Authority
JP
Japan
Prior art keywords
trap
natural zeolite
exhaust tube
tube part
vacuum exhaust
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.)
Pending
Application number
JP1662981A
Other languages
Japanese (ja)
Inventor
Junichi Nishizawa
Ken Sudo
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to JP1662981A priority Critical patent/JPS57131879A/en
Publication of JPS57131879A publication Critical patent/JPS57131879A/en
Pending legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B37/00—Pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B25/00 - F04B35/00
    • F04B37/06—Pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B25/00 - F04B35/00 for evacuating by thermal means
    • F04B37/08—Pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B25/00 - F04B35/00 for evacuating by thermal means by condensing or freezing, e.g. cryogenic pumps

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)

Abstract

PURPOSE:To remove oil contaminations by adsorbing oil particles by means of provision of natural zeolite, with less iron content, in the vacuum exhaust tube part which uses a rotary pump etc. CONSTITUTION:An oil removing trap has an exhaust tube part in its middle and a cylindrically arranged stainless netting 2 in its periphery made of natural zeolite 1, and is so constructed as cooled with its circumference by liquefied nitrogen 3. Oil particles which want to pass through the exhaust tube part of the trap are adsorbed by this natural zeolite 1. Iron content of this natural zeolite 1 is normally no more than 4wt%, but a one with this value below 1.5wt% is recommended to use through selection.
JP1662981A 1981-02-06 1981-02-06 Vacuum exhaust device and trap for the same Pending JPS57131879A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1662981A JPS57131879A (en) 1981-02-06 1981-02-06 Vacuum exhaust device and trap for the same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1662981A JPS57131879A (en) 1981-02-06 1981-02-06 Vacuum exhaust device and trap for the same

Publications (1)

Publication Number Publication Date
JPS57131879A true JPS57131879A (en) 1982-08-14

Family

ID=11921646

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1662981A Pending JPS57131879A (en) 1981-02-06 1981-02-06 Vacuum exhaust device and trap for the same

Country Status (1)

Country Link
JP (1) JPS57131879A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014124582A (en) * 2012-12-26 2014-07-07 Sumitomo Heavy Ind Ltd Cold trap and attachment structure of the same

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS44268Y1 (en) * 1965-04-20 1969-01-08
JPS5592120A (en) * 1978-12-29 1980-07-12 Shintouhoku Kagaku Kogyo Kk Impurity removal using natural zeolite and equipment therefor

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS44268Y1 (en) * 1965-04-20 1969-01-08
JPS5592120A (en) * 1978-12-29 1980-07-12 Shintouhoku Kagaku Kogyo Kk Impurity removal using natural zeolite and equipment therefor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014124582A (en) * 2012-12-26 2014-07-07 Sumitomo Heavy Ind Ltd Cold trap and attachment structure of the same

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