JPS5430301A - Drum level reduction preventive device of natural circulation boiler - Google Patents

Drum level reduction preventive device of natural circulation boiler

Info

Publication number
JPS5430301A
JPS5430301A JP9516577A JP9516577A JPS5430301A JP S5430301 A JPS5430301 A JP S5430301A JP 9516577 A JP9516577 A JP 9516577A JP 9516577 A JP9516577 A JP 9516577A JP S5430301 A JPS5430301 A JP S5430301A
Authority
JP
Japan
Prior art keywords
natural circulation
level reduction
preventive device
drum level
circulation boiler
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
JP9516577A
Other languages
Japanese (ja)
Inventor
Hideo Nakamura
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP9516577A priority Critical patent/JPS5430301A/en
Publication of JPS5430301A publication Critical patent/JPS5430301A/en
Pending legal-status Critical Current

Links

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

Abstract

PURPOSE: To slow drum reduction by means that steam generated in a vaporizing tube is increased to supplement disappeared bubble with the fuel amount controlled.
COPYRIGHT: (C)1979,JPO&Japio
JP9516577A 1977-08-10 1977-08-10 Drum level reduction preventive device of natural circulation boiler Pending JPS5430301A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9516577A JPS5430301A (en) 1977-08-10 1977-08-10 Drum level reduction preventive device of natural circulation boiler

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9516577A JPS5430301A (en) 1977-08-10 1977-08-10 Drum level reduction preventive device of natural circulation boiler

Publications (1)

Publication Number Publication Date
JPS5430301A true JPS5430301A (en) 1979-03-06

Family

ID=14130150

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9516577A Pending JPS5430301A (en) 1977-08-10 1977-08-10 Drum level reduction preventive device of natural circulation boiler

Country Status (1)

Country Link
JP (1) JPS5430301A (en)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59116701A (en) * 1982-12-24 1984-07-05 Asahi Chem Ind Co Ltd Fluoroplastic optical fiber
JPS59220704A (en) * 1983-05-30 1984-12-12 Nippon Sheet Glass Co Ltd Manufacture of optical circuit of synthetic resin
JPS60205403A (en) * 1984-03-29 1985-10-17 Kanegafuchi Chem Ind Co Ltd Plastic optical fiber having superior heat resistance
JPS60211404A (en) * 1984-04-05 1985-10-23 Nippon Sheet Glass Co Ltd Manufacture of synthetic resin optical transmitter
JPS6225705A (en) * 1985-07-26 1987-02-03 Mitsubishi Electric Corp Production of near parabolic optical plastic
JPH02116801A (en) * 1988-10-27 1990-05-01 Mitsubishi Rayon Co Ltd Plastic light transmission body
JPH02120701A (en) * 1988-10-31 1990-05-08 Mitsubishi Rayon Co Ltd Distributed refractive index light transmission body
US5253323A (en) * 1990-08-16 1993-10-12 Yasuhiro Koike Method of manufacturing a graded optical transmission medium made of synthetic resin
US5425122A (en) * 1991-12-26 1995-06-13 Nippon Petrochemicals Company, Limited Synthetic resin optical transmission medium and its preparation method
US5555525A (en) * 1994-09-07 1996-09-10 Industrial Technology Research Institute Method of making graded refractive index polymeric optical fibers and optical fibers made by the method
US5614253A (en) * 1993-06-16 1997-03-25 Sumitomo Electric Industries, Ltd. Plastic optical fiber preform, and process and apparatus for producing the same
US5639512A (en) * 1993-06-18 1997-06-17 Sumitomo Electric Industries, Ltd. Plastic optical fiber preform, and process and apparatus for producing the same

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59116701A (en) * 1982-12-24 1984-07-05 Asahi Chem Ind Co Ltd Fluoroplastic optical fiber
JPS59220704A (en) * 1983-05-30 1984-12-12 Nippon Sheet Glass Co Ltd Manufacture of optical circuit of synthetic resin
JPS60205403A (en) * 1984-03-29 1985-10-17 Kanegafuchi Chem Ind Co Ltd Plastic optical fiber having superior heat resistance
JPS60211404A (en) * 1984-04-05 1985-10-23 Nippon Sheet Glass Co Ltd Manufacture of synthetic resin optical transmitter
JPS6225705A (en) * 1985-07-26 1987-02-03 Mitsubishi Electric Corp Production of near parabolic optical plastic
JPH02116801A (en) * 1988-10-27 1990-05-01 Mitsubishi Rayon Co Ltd Plastic light transmission body
JPH02120701A (en) * 1988-10-31 1990-05-08 Mitsubishi Rayon Co Ltd Distributed refractive index light transmission body
US5253323A (en) * 1990-08-16 1993-10-12 Yasuhiro Koike Method of manufacturing a graded optical transmission medium made of synthetic resin
US5425122A (en) * 1991-12-26 1995-06-13 Nippon Petrochemicals Company, Limited Synthetic resin optical transmission medium and its preparation method
US5614253A (en) * 1993-06-16 1997-03-25 Sumitomo Electric Industries, Ltd. Plastic optical fiber preform, and process and apparatus for producing the same
US5851666A (en) * 1993-06-16 1998-12-22 Sumitomo Electric Industries, Ltd. Plastic optical fiber preform, and process and apparatus for producing the same
US5639512A (en) * 1993-06-18 1997-06-17 Sumitomo Electric Industries, Ltd. Plastic optical fiber preform, and process and apparatus for producing the same
US5891570A (en) * 1993-06-18 1999-04-06 Sumitomo Electric Industries, Ltd. Plastic optical fiber preform having a jacket layer
US5916495A (en) * 1993-06-18 1999-06-29 Sumitomo Electric Industries, Ltd. Plastic optical fiber preform, and process and apparatus for producing the same
US5555525A (en) * 1994-09-07 1996-09-10 Industrial Technology Research Institute Method of making graded refractive index polymeric optical fibers and optical fibers made by the method

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