JPS54108104A - Reduction of vibration of balanced-type steam regulating valve - Google Patents

Reduction of vibration of balanced-type steam regulating valve

Info

Publication number
JPS54108104A
JPS54108104A JP1545878A JP1545878A JPS54108104A JP S54108104 A JPS54108104 A JP S54108104A JP 1545878 A JP1545878 A JP 1545878A JP 1545878 A JP1545878 A JP 1545878A JP S54108104 A JPS54108104 A JP S54108104A
Authority
JP
Japan
Prior art keywords
valve
auxiliary
vibration
steam regulating
main
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
JP1545878A
Other languages
Japanese (ja)
Inventor
Isao Fujita
Yutaro Matsuura
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 JP1545878A priority Critical patent/JPS54108104A/en
Publication of JPS54108104A publication Critical patent/JPS54108104A/en
Pending legal-status Critical Current

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Abstract

PURPOSE: To reduce the vibration of a balanced-type steam regulating valve through simple construction, by adjusting the lift of an auxilizry valve.
CONSTITUTION: The shoulder of the auxiliary valve 6 or an auxiliary valve element 11 is so worked that the ratio h/d of the lift h of the auxiliary valve 6, which is the distance between the auxiliary valve element 11 and a main valve element 12 when a main valve 1 is entirely closed, to the diameter d of a valve stem 8 is equal to or more than 0.04. When the steam regulating valve remains entirely closed, the valve stem 8 is pulled up to open only the auxiliary valve 6 to pass a fluid a small gap between a sleeve 2 and a main valve skirt 1a. Thereby, the pressure of a balance chamber 10 is reduced, so that the steam force acting on the main valve 1 is decreased. Thereafter, the auxiliary valve element 11 and the main valve element 12 are brought into contact with each other and the opening of the main valve 1 is started. At that time, the natural frequency of the valve stem 8 and the resonance frequency of the balance chamber 10 are made greatly different from each other. Thereofore, the vibration of the steam regulating valve is reduced and the life of the parts of the valve are improved.
COPYRIGHT: (C)1979,JPO&Japio
JP1545878A 1978-02-15 1978-02-15 Reduction of vibration of balanced-type steam regulating valve Pending JPS54108104A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1545878A JPS54108104A (en) 1978-02-15 1978-02-15 Reduction of vibration of balanced-type steam regulating valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1545878A JPS54108104A (en) 1978-02-15 1978-02-15 Reduction of vibration of balanced-type steam regulating valve

Publications (1)

Publication Number Publication Date
JPS54108104A true JPS54108104A (en) 1979-08-24

Family

ID=11889344

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1545878A Pending JPS54108104A (en) 1978-02-15 1978-02-15 Reduction of vibration of balanced-type steam regulating valve

Country Status (1)

Country Link
JP (1) JPS54108104A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5119859A (en) * 1989-03-06 1992-06-09 Hitachi, Ltd. Steam governing valve
CN104864173A (en) * 2014-02-24 2015-08-26 通用电气公司 Valve poppet element defining balance chamber

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5119859A (en) * 1989-03-06 1992-06-09 Hitachi, Ltd. Steam governing valve
CN104864173A (en) * 2014-02-24 2015-08-26 通用电气公司 Valve poppet element defining balance chamber
CN104864173B (en) * 2014-02-24 2019-01-11 通用电气公司 Limit the valve bracket component of balance cylinder

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