GB1200692A - Apparatus for compensating for variations in gas pressure in the space above the liquid in an expandion tank - Google Patents

Apparatus for compensating for variations in gas pressure in the space above the liquid in an expandion tank

Info

Publication number
GB1200692A
GB1200692A GB483468A GB483468A GB1200692A GB 1200692 A GB1200692 A GB 1200692A GB 483468 A GB483468 A GB 483468A GB 483468 A GB483468 A GB 483468A GB 1200692 A GB1200692 A GB 1200692A
Authority
GB
United Kingdom
Prior art keywords
tank
cylinder
pressure
gas
vessel
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.)
Expired
Application number
GB483468A
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.)
Alcatel Lucent SAS
Original Assignee
Compagnie Generale dElectricite 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 Compagnie Generale dElectricite SA filed Critical Compagnie Generale dElectricite SA
Publication of GB1200692A publication Critical patent/GB1200692A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D90/00—Component parts, details or accessories for large containers
    • B65D90/22—Safety features
    • B65D90/38—Means for reducing the vapour space or for reducing the formation of vapour within containers
    • B65D90/44—Means for reducing the vapour space or for reducing the formation of vapour within containers by use of inert gas for filling space above liquid or between contents
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G15/00—Cable fittings
    • H02G15/20—Cable fittings for cables filled with or surrounded by gas or oil
    • H02G15/26—Expansion vessels; Locking heads; Auxiliary pipe-lines
    • 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
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L2101/00—Uses or applications of pigs or moles
    • F16L2101/30—Inspecting, measuring or testing

Abstract

1,200,692. Pressure compensating system. COMPAGNIE GENERALE D'ELECTRICITE. Jan.30, 1968 [Feb.21, 1967], No.4834/68. Heading F1P. Variations in the volume of a dielectric liquid, such as oil, contained in a vessel 1 and surroundi an apparatus 2, such as an electrical cable, which apparatus is subject to thermal and hence volumetric changes, are compensated for by the provision of a buffer tank 3 which is connected to a cylinder 6 of pressurized inert gas. Upon the oil in the vessel 1 being displaced into the tank 3, the consequent pressure rise of the inert gas in the tank actuates a pressure contact 7 which in turn actuates a sealed motor compressor unit 4 as a result of which, the excess pressure in the tank is relieved with the gas so displaced being compressed and returned to the cylinder 6. Conversely, in the event of oil being returned to the vessel 1 from tank 3, the consequent decreased gas pressure within the tank 3 de-activates the pressure contact 7 and hence the compressor, and opens an expansion valve 5 so permitting gas to flow from the cylinder 6, via the valve 5, to the tank 3. In an alternative arrangement, the connection between the tank 3 and cylinder 6 is effected by means of a capillary tube and the compressor is rotated at a constant speed, the gas pressure within the tank determining whether the resultant flow is from or to the cylinder 6.
GB483468A 1967-02-21 1968-01-30 Apparatus for compensating for variations in gas pressure in the space above the liquid in an expandion tank Expired GB1200692A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR95874A FR1520564A (en) 1967-02-21 1967-02-21 Device for compensating for the expansion of a liquid in an enclosure containing an immersed device, ensuring the preservation of the qualities of said liquid

Publications (1)

Publication Number Publication Date
GB1200692A true GB1200692A (en) 1970-07-29

Family

ID=8625669

Family Applications (1)

Application Number Title Priority Date Filing Date
GB483468A Expired GB1200692A (en) 1967-02-21 1968-01-30 Apparatus for compensating for variations in gas pressure in the space above the liquid in an expandion tank

Country Status (2)

Country Link
FR (1) FR1520564A (en)
GB (1) GB1200692A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105059774A (en) * 2015-07-14 2015-11-18 西安理工大学 P-xylene storage system and process based on inert gas protection
CN117553998A (en) * 2024-01-11 2024-02-13 南京立业电力变压器有限公司 Static pressure constant voltage device and method for transformer

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105059774A (en) * 2015-07-14 2015-11-18 西安理工大学 P-xylene storage system and process based on inert gas protection
CN117553998A (en) * 2024-01-11 2024-02-13 南京立业电力变压器有限公司 Static pressure constant voltage device and method for transformer

Also Published As

Publication number Publication date
FR1520564A (en) 1968-04-12

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees