JPS5676201A - Control for evaporator - Google Patents

Control for evaporator

Info

Publication number
JPS5676201A
JPS5676201A JP15249079A JP15249079A JPS5676201A JP S5676201 A JPS5676201 A JP S5676201A JP 15249079 A JP15249079 A JP 15249079A JP 15249079 A JP15249079 A JP 15249079A JP S5676201 A JPS5676201 A JP S5676201A
Authority
JP
Japan
Prior art keywords
waste liquid
heat medium
amount
temperature
heat
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
JP15249079A
Other languages
Japanese (ja)
Inventor
Shigeo Matsuda
Hogi Kagawa
Akira Hasegawa
Takuro Yagi
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.)
JGC Corp
Original Assignee
JGC Corp
Japan Gasoline 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 JGC Corp, Japan Gasoline Co Ltd filed Critical JGC Corp
Priority to JP15249079A priority Critical patent/JPS5676201A/en
Publication of JPS5676201A publication Critical patent/JPS5676201A/en
Pending legal-status Critical Current

Links

Landscapes

  • Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
  • Control Of Temperature (AREA)

Abstract

PURPOSE: To keep a heat transfer quantity constant and to consecutively treat a given amount of waste liquid in an evaporator for solidifying radioactive waste liquid, by a method wherein an over all heat transfer coefficient is indirectly found based on detected data, and a temperature of heat medium is controlled corresponding to said coefficient.
CONSTITUTION: Radiocative waste liquid from a waste liquid storage tank 1 flows into an evaporation mixing device 2 as the quentity of said liquid flow is measured by a flow detector F, and moisture therein is evaporated by making contact with a molten asphalt, whereby molten salts are left. The moisture passing through a mist catcher 3 is condensed for separation, and remaining solid is mixed into asphalt. The heat medium, heating the evaporation mixing device 2, returns to a heater 4 to be reheated thereat and recycles. The amount of the waste liquid feed w, mixing degree t, and average value T of the inlet and outlet temperature of the heat medium are input to a main computing unit, and a set temperature vector T is consecutively computed, based on a target vector w of liquid feed amount and a target vector t of the mixing temperature. The amount of heat to be fed to the heat medium heater 4 is controlled according to the output of the computor.
COPYRIGHT: (C)1981,JPO&Japio
JP15249079A 1979-11-27 1979-11-27 Control for evaporator Pending JPS5676201A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15249079A JPS5676201A (en) 1979-11-27 1979-11-27 Control for evaporator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15249079A JPS5676201A (en) 1979-11-27 1979-11-27 Control for evaporator

Publications (1)

Publication Number Publication Date
JPS5676201A true JPS5676201A (en) 1981-06-23

Family

ID=15541605

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15249079A Pending JPS5676201A (en) 1979-11-27 1979-11-27 Control for evaporator

Country Status (1)

Country Link
JP (1) JPS5676201A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4675129A (en) * 1984-08-16 1987-06-23 GNS Gesellschaft fur Nuklear-Service mbH Method of handling radioactive waste and especially radioactive or radioactively contaminated evaporator concentrates and water-containing solids

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4675129A (en) * 1984-08-16 1987-06-23 GNS Gesellschaft fur Nuklear-Service mbH Method of handling radioactive waste and especially radioactive or radioactively contaminated evaporator concentrates and water-containing solids

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