JPS56131898A - Method of controlling pressure in evaporating drum of evaporator - Google Patents

Method of controlling pressure in evaporating drum of evaporator

Info

Publication number
JPS56131898A
JPS56131898A JP3405080A JP3405080A JPS56131898A JP S56131898 A JPS56131898 A JP S56131898A JP 3405080 A JP3405080 A JP 3405080A JP 3405080 A JP3405080 A JP 3405080A JP S56131898 A JPS56131898 A JP S56131898A
Authority
JP
Japan
Prior art keywords
lowered
evaporator
pressure
load
output
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
JP3405080A
Other languages
Japanese (ja)
Inventor
Katsutoshi Fukumoto
Kengo Hamanaka
Kensuke Shimada
Michio Koizumi
Yoshiaki Kakiuchi
Seiji Koyama
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.)
Mitsubishi Heavy Industries Ltd
Original Assignee
Mitsubishi Heavy 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 Mitsubishi Heavy Industries Ltd filed Critical Mitsubishi Heavy Industries Ltd
Priority to JP3405080A priority Critical patent/JPS56131898A/en
Publication of JPS56131898A publication Critical patent/JPS56131898A/en
Pending legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C13/00—Details of vessels or of the filling or discharging of vessels
    • F17C13/02—Special adaptations of indicating, measuring, or monitoring equipment
    • F17C13/025—Special adaptations of indicating, measuring, or monitoring equipment having the pressure as the parameter
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
    • F17C2205/0302—Fittings, valves, filters, or components in connection with the gas storage device
    • F17C2205/0338—Pressure regulators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
    • F17C2223/01—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the phase
    • F17C2223/0146—Two-phase
    • F17C2223/0153—Liquefied gas, e.g. LPG, GPL
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2227/00—Transfer of fluids, i.e. method or means for transferring the fluid; Heat exchange with the fluid
    • F17C2227/03—Heat exchange with the fluid
    • F17C2227/0302—Heat exchange with the fluid by heating
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2250/00—Accessories; Control means; Indicating, measuring or monitoring of parameters
    • F17C2250/06—Controlling or regulating of parameters as output values
    • F17C2250/0605—Parameters
    • F17C2250/0626—Pressure

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)

Abstract

PURPOSE:To accomplish stable control on the operation of an evaporator for wide and rapid change of the load, by changing the sensitivity of a system for controlling the pressure in an evaporating drum according to the temperature difference of heating medium at the inlet and the outlet of the same. CONSTITUTION:When an evaporator is operated under a high load and the temperature difference of 15 deg.C at the inlet and the outlet of hot water, it is operated under an optimal controlling condition by correcting the output of a function operator 13. In this state, if the load is lowered rapidly, pressure in an evaporating drum is raised slightly, so that output of a subtracter 11 is lowered and that of a function operator 13 is also lowered. Consequently, output of a multiplier 12 and that of a pressure regulator 17 are both lowered. This causes reduction in the opening of a control valve 21, so that the rise of the pressure in the drum can be prevented. Thus, it is enabled to accomplish stable control against wide and rapid change of the load.
JP3405080A 1980-03-19 1980-03-19 Method of controlling pressure in evaporating drum of evaporator Pending JPS56131898A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3405080A JPS56131898A (en) 1980-03-19 1980-03-19 Method of controlling pressure in evaporating drum of evaporator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3405080A JPS56131898A (en) 1980-03-19 1980-03-19 Method of controlling pressure in evaporating drum of evaporator

Publications (1)

Publication Number Publication Date
JPS56131898A true JPS56131898A (en) 1981-10-15

Family

ID=12403465

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3405080A Pending JPS56131898A (en) 1980-03-19 1980-03-19 Method of controlling pressure in evaporating drum of evaporator

Country Status (1)

Country Link
JP (1) JPS56131898A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5867390A (en) * 1981-10-16 1983-04-21 Babcock Hitachi Kk Water making device for ship and operating method for said device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5867390A (en) * 1981-10-16 1983-04-21 Babcock Hitachi Kk Water making device for ship and operating method for said device
JPS638829B2 (en) * 1981-10-16 1988-02-24 Babcock Hitachi Kk

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