FR2241040A1 - Appts. for reducing pipe mains hammer blow - is for power station boiler water feed systems using three-way valve - Google Patents

Appts. for reducing pipe mains hammer blow - is for power station boiler water feed systems using three-way valve

Info

Publication number
FR2241040A1
FR2241040A1 FR7427712A FR7427712A FR2241040A1 FR 2241040 A1 FR2241040 A1 FR 2241040A1 FR 7427712 A FR7427712 A FR 7427712A FR 7427712 A FR7427712 A FR 7427712A FR 2241040 A1 FR2241040 A1 FR 2241040A1
Authority
FR
France
Prior art keywords
appts
hammer blow
way valve
power station
water feed
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
FR7427712A
Other languages
French (fr)
Other versions
FR2241040B3 (en
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.)
BBC Brown Boveri AG Switzerland
Original Assignee
BBC Brown Boveri AG Switzerland
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 BBC Brown Boveri AG Switzerland filed Critical BBC Brown Boveri AG Switzerland
Publication of FR2241040A1 publication Critical patent/FR2241040A1/en
Application granted granted Critical
Publication of FR2241040B3 publication Critical patent/FR2241040B3/fr
Granted legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K39/00—Devices for relieving the pressure on the sealing faces
    • F16K39/02—Devices for relieving the pressure on the sealing faces for lift valves
    • F16K39/024—Devices for relieving the pressure on the sealing faces for lift valves using an auxiliary valve on the main valve

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Details Of Valves (AREA)

Abstract

Power stations have rapid acting reversing valves for regulating feed water passing through preheaters. These give rise to pressure waves which travel up the feed pipe and can cause much damage. The patent covers a system in which the three way cock is first reversed. At the same time a stopping element closes relatively slowly. This is followed by the closing of a throttling mechanism in an exhaust circuit which short circuits the closure of the three way cock, i.e. into the pipe under pressure. This lessens considerably the risk of hammer blow.
FR7427712A 1973-08-13 1974-08-09 Appts. for reducing pipe mains hammer blow - is for power station boiler water feed systems using three-way valve Granted FR2241040A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1161872 1973-08-13

Publications (2)

Publication Number Publication Date
FR2241040A1 true FR2241040A1 (en) 1975-03-14
FR2241040B3 FR2241040B3 (en) 1977-06-10

Family

ID=4375193

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7427712A Granted FR2241040A1 (en) 1973-08-13 1974-08-09 Appts. for reducing pipe mains hammer blow - is for power station boiler water feed systems using three-way valve

Country Status (1)

Country Link
FR (1) FR2241040A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2459914A1 (en) * 2009-06-02 2012-06-06 Arne Fridtjof Myran Universal valve system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2459914A1 (en) * 2009-06-02 2012-06-06 Arne Fridtjof Myran Universal valve system

Also Published As

Publication number Publication date
FR2241040B3 (en) 1977-06-10

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