FR2275642A1 - Seal for rotating shaft exposed to sulphur - for electricity generation by binary cycle sulphur vapour and steam - Google Patents

Seal for rotating shaft exposed to sulphur - for electricity generation by binary cycle sulphur vapour and steam

Info

Publication number
FR2275642A1
FR2275642A1 FR7421175A FR7421175A FR2275642A1 FR 2275642 A1 FR2275642 A1 FR 2275642A1 FR 7421175 A FR7421175 A FR 7421175A FR 7421175 A FR7421175 A FR 7421175A FR 2275642 A1 FR2275642 A1 FR 2275642A1
Authority
FR
France
Prior art keywords
sulphur
steam
seal
rotating shaft
electricity generation
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
FR7421175A
Other languages
French (fr)
Other versions
FR2275642B1 (en
Inventor
Robert Laurent
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.)
Electricite de France SA
Original Assignee
Electricite de France SA
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 Electricite de France SA filed Critical Electricite de France SA
Priority to FR7421175A priority Critical patent/FR2275642A1/en
Publication of FR2275642A1 publication Critical patent/FR2275642A1/en
Application granted granted Critical
Publication of FR2275642B1 publication Critical patent/FR2275642B1/fr
Granted legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D11/00—Preventing or minimising internal leakage of working-fluid, e.g. between stages
    • F01D11/02—Preventing or minimising internal leakage of working-fluid, e.g. between stages by non-contact sealings, e.g. of labyrinth type
    • F01D11/04—Preventing or minimising internal leakage of working-fluid, e.g. between stages by non-contact sealings, e.g. of labyrinth type using sealing fluid, e.g. steam
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
    • F01K25/00—Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for
    • F01K25/08—Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for using special vapours
    • F01K25/085—Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for using special vapours the vapour being sulfur
    • 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
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/16—Sealings between relatively-moving surfaces
    • F16J15/40—Sealings between relatively-moving surfaces by means of fluid
    • F16J15/403—Sealings between relatively-moving surfaces by means of fluid by changing the state of matter

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)

Abstract

The shaft has a sleeve which encloses molten sulphur which is maintained at a temperature between 170 deg.C and 200 deg.C. When the sulphur is in a viscous state. The sulphur in contact with the shaft remains in the liquid state due to friction, which results in a slight leak. To replace this leakage additional liquid sulphur is supplied which is cooled by water under pressure at a temperature of 180 deg.C. Since water vapour is inert with respect to sulphur there is no danger of the sulphur igniting at these temperatures as would be the case if the sulphur were in contact with air.
FR7421175A 1974-06-18 1974-06-18 Seal for rotating shaft exposed to sulphur - for electricity generation by binary cycle sulphur vapour and steam Granted FR2275642A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7421175A FR2275642A1 (en) 1974-06-18 1974-06-18 Seal for rotating shaft exposed to sulphur - for electricity generation by binary cycle sulphur vapour and steam

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7421175A FR2275642A1 (en) 1974-06-18 1974-06-18 Seal for rotating shaft exposed to sulphur - for electricity generation by binary cycle sulphur vapour and steam

Publications (2)

Publication Number Publication Date
FR2275642A1 true FR2275642A1 (en) 1976-01-16
FR2275642B1 FR2275642B1 (en) 1976-10-15

Family

ID=9140207

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7421175A Granted FR2275642A1 (en) 1974-06-18 1974-06-18 Seal for rotating shaft exposed to sulphur - for electricity generation by binary cycle sulphur vapour and steam

Country Status (1)

Country Link
FR (1) FR2275642A1 (en)

Also Published As

Publication number Publication date
FR2275642B1 (en) 1976-10-15

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Legal Events

Date Code Title Description
ST Notification of lapse