JPS602105U - Wet-dry switching control device for variable voltage boiler - Google Patents

Wet-dry switching control device for variable voltage boiler

Info

Publication number
JPS602105U
JPS602105U JP9182983U JP9182983U JPS602105U JP S602105 U JPS602105 U JP S602105U JP 9182983 U JP9182983 U JP 9182983U JP 9182983 U JP9182983 U JP 9182983U JP S602105 U JPS602105 U JP S602105U
Authority
JP
Japan
Prior art keywords
boiler
steam
water
wet
control device
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
JP9182983U
Other languages
Japanese (ja)
Other versions
JPH0223921Y2 (en
Inventor
国広　祐司
Original Assignee
バブコツク日立株式会社
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 バブコツク日立株式会社 filed Critical バブコツク日立株式会社
Priority to JP9182983U priority Critical patent/JPS602105U/en
Publication of JPS602105U publication Critical patent/JPS602105U/en
Application granted granted Critical
Publication of JPH0223921Y2 publication Critical patent/JPH0223921Y2/ja
Granted legal-status Critical Current

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  • Control Of Steam Boilers And Waste-Gas Boilers (AREA)

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【図面の簡単な説明】[Brief explanation of drawings]

第１図は変圧運転ボイラーの一例を示す系統図、第２図
は気水分離入口における変圧運転の起動時のエルタルピ
ー軌跡図、第３図は本考案の一実施例を示すブロック図
である。 ３・・・節炭器、４・・・ボイラー、５・・・気水分離
器、６・・・貯水タンク、７・・・ボイラ循環ポンプ、
８・・・過　　　□熱器、１１・・・除算器、１２・・
・圧力検出器、１３・・・掛算器、１４・・・関数発生
器、１５・・・減算器、１６・・・モニター回路。FIG. 1 is a system diagram showing an example of a variable pressure operation boiler, FIG. 2 is an El Talpy locus diagram at the start of variable pressure operation at the steam/water separation inlet, and FIG. 3 is a block diagram showing an embodiment of the present invention. 3... Energy saver, 4... Boiler, 5... Steam water separator, 6... Water storage tank, 7... Boiler circulation pump,
8... Overheater, 11... Divider, 12...
- Pressure detector, 13... Multiplier, 14... Function generator, 15... Subtractor, 16... Monitor circuit.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 節炭器を介して導入した給水をボイラーで加熱して蒸気
を生成し、この蒸気を気水分離器で気水分離し、飽和蒸
気を過熱器に送る己共に分離されたボイラ水を所定時に
ボイラー再循環ポンプを介して前記節炭器に戻す変圧運
転ボイラシステムにおいて、主蒸気流量と前記ボイラー
再循環ポンプによるボイラー再循環量との比に前記ボイ
ラ水を貯水するタンク内圧力値を乗じて気水分離器のエ
ンタルピーを算出する演算部と、前記タンク内圧力値に
基づいて湿り度０のエンタルピーを算出する関数発生器
と、該関数発生器の出力値と前記演算部の出力値との偏
差が消失するときに出力信号を発生する減算器と、該減
算器の出力信号に基づいて前記ボイラー再循環ポンプを
停止させる停止インターロック部とを具備することを特
徴とする変圧運転ボイラーのウェット−ドライ切替制御
装置。Feed water introduced through the economizer is heated in a boiler to generate steam, this steam is separated into steam and water in a steam-water separator, and saturated steam is sent to a superheater.The boiler water that has been separated is then heated at a predetermined time. In a variable pressure operating boiler system where the boiler water is returned to the economizer via the boiler recirculation pump, the ratio of the main steam flow rate to the boiler recirculation amount by the boiler recirculation pump is multiplied by the pressure value in the tank storing the boiler water. a calculation unit that calculates the enthalpy of the steam-water separator; a function generator that calculates the enthalpy of humidity 0 based on the tank internal pressure value; and an output value of the function generator and an output value of the calculation unit. A wet boiler for variable pressure operation, comprising: a subtractor that generates an output signal when the deviation disappears; and a stop interlock section that stops the boiler recirculation pump based on the output signal of the subtractor. - Dry switching control device.
JP9182983U 1983-06-15 1983-06-15 Wet-dry switching control device for variable voltage boiler Granted JPS602105U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9182983U JPS602105U (en) 1983-06-15 1983-06-15 Wet-dry switching control device for variable voltage boiler

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9182983U JPS602105U (en) 1983-06-15 1983-06-15 Wet-dry switching control device for variable voltage boiler

Publications (2)

Publication Number Publication Date
JPS602105U true JPS602105U (en) 1985-01-09
JPH0223921Y2 JPH0223921Y2 (en) 1990-06-29

Family

ID=30221914

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9182983U Granted JPS602105U (en) 1983-06-15 1983-06-15 Wet-dry switching control device for variable voltage boiler

Country Status (1)

Country Link
JP (1) JPS602105U (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61161305A (en) * 1985-01-10 1986-07-22 バブコツク日立株式会社 Controller for operation of pressure-change once-through boiler
JPS63148004A (en) * 1986-12-09 1988-06-20 バブコツク日立株式会社 Method of operating once-through boiler
JPH0190725U (en) * 1987-12-07 1989-06-14
JPH0269639U (en) * 1988-11-11 1990-05-28

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5697702A (en) * 1980-01-09 1981-08-06 Hitachi Ltd Control device of pressure changable operation boiler
JPS5822804A (en) * 1981-07-31 1983-02-10 三菱重工業株式会社 Controller for temperature of steam in case of pressure change operation

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5697702A (en) * 1980-01-09 1981-08-06 Hitachi Ltd Control device of pressure changable operation boiler
JPS5822804A (en) * 1981-07-31 1983-02-10 三菱重工業株式会社 Controller for temperature of steam in case of pressure change operation

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61161305A (en) * 1985-01-10 1986-07-22 バブコツク日立株式会社 Controller for operation of pressure-change once-through boiler
JPS63148004A (en) * 1986-12-09 1988-06-20 バブコツク日立株式会社 Method of operating once-through boiler
JPH0190725U (en) * 1987-12-07 1989-06-14
JPH0418988Y2 (en) * 1987-12-07 1992-04-28
JPH0269639U (en) * 1988-11-11 1990-05-28

Also Published As

Publication number Publication date
JPH0223921Y2 (en) 1990-06-29

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