JPS57125339A - Variable type leakage-free decompressor - Google Patents

Variable type leakage-free decompressor

Info

Publication number
JPS57125339A
JPS57125339A JP1082481A JP1082481A JPS57125339A JP S57125339 A JPS57125339 A JP S57125339A JP 1082481 A JP1082481 A JP 1082481A JP 1082481 A JP1082481 A JP 1082481A JP S57125339 A JPS57125339 A JP S57125339A
Authority
JP
Japan
Prior art keywords
pressure
sample water
sample
variable type
flow rate
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.)
Granted
Application number
JP1082481A
Other languages
Japanese (ja)
Other versions
JPS6256455B2 (en
Inventor
Yoshishige Ishikawa
Hiroyuki Watanabe
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.)
Nikkiso Co Ltd
Original Assignee
Nikkiso Co 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 Nikkiso Co Ltd filed Critical Nikkiso Co Ltd
Priority to JP1082481A priority Critical patent/JPS57125339A/en
Publication of JPS57125339A publication Critical patent/JPS57125339A/en
Publication of JPS6256455B2 publication Critical patent/JPS6256455B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N1/00—Sampling; Preparing specimens for investigation
    • G01N1/02—Devices for withdrawing samples
    • G01N1/10—Devices for withdrawing samples in the liquid or fluent state

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Measurement Of Radiation (AREA)
  • Magnetically Actuated Valves (AREA)
  • Sampling And Sample Adjustment (AREA)

Abstract

PURPOSE:To prevent leakage of sample water and change in the flow rate by arranging a variable type decompressor of a sample water with no ground sectionwhile the pressure of the sample water is always retained at set level. CONSTITUTION:When a cylindrical cover 58 on the inner surface of which a stator magnet 56 is mounted turns, a rotor magnet 46 rotates to turn a screw shaft 38 and a mobile ring 36 fitted with core wires 32 and 34 is moved. The screw shaft 38, the rotor magnet 46 and the like are housed in a decompression casing 40 and a cylindrical can 49 and has no ground. The pressure of a sample water in a sample water inlet piping 22 is compared with a set pressure by means of a proportional controller and when changes in the pressure are detected, and action signal is applied to a servo motor 66. With the rotation of the servo motor 66, the cover 58 is turned to change the insertion length of the core wires 32 and 34 into a pressure ajusting tubules 26 and 30 so that the pressure of the sample water of an outlet piping 28 will be kept constant. Thus, leakage of the sample and changes in the flow rate can be prevented.
JP1082481A 1981-01-29 1981-01-29 Variable type leakage-free decompressor Granted JPS57125339A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1082481A JPS57125339A (en) 1981-01-29 1981-01-29 Variable type leakage-free decompressor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1082481A JPS57125339A (en) 1981-01-29 1981-01-29 Variable type leakage-free decompressor

Publications (2)

Publication Number Publication Date
JPS57125339A true JPS57125339A (en) 1982-08-04
JPS6256455B2 JPS6256455B2 (en) 1987-11-26

Family

ID=11761101

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1082481A Granted JPS57125339A (en) 1981-01-29 1981-01-29 Variable type leakage-free decompressor

Country Status (1)

Country Link
JP (1) JPS57125339A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61153075A (en) * 1984-12-26 1986-07-11 Nippon Denso Co Ltd Rotary-valve switching device
JPH01299437A (en) * 1988-05-27 1989-12-04 Nikkiso Co Ltd Regulating mechanism of pressure reduction of automatic pressure-reducing apparatus

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014048272A (en) * 2012-09-04 2014-03-17 Nikkiso Co Ltd Automatic decompression device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61153075A (en) * 1984-12-26 1986-07-11 Nippon Denso Co Ltd Rotary-valve switching device
JPH0565749B2 (en) * 1984-12-26 1993-09-20 Nippon Denso Co
JPH01299437A (en) * 1988-05-27 1989-12-04 Nikkiso Co Ltd Regulating mechanism of pressure reduction of automatic pressure-reducing apparatus

Also Published As

Publication number Publication date
JPS6256455B2 (en) 1987-11-26

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