GB982791A - Improvements relating to inert gas system for tank ships - Google Patents

Improvements relating to inert gas system for tank ships

Info

Publication number
GB982791A
GB982791A GB3835361A GB3835361A GB982791A GB 982791 A GB982791 A GB 982791A GB 3835361 A GB3835361 A GB 3835361A GB 3835361 A GB3835361 A GB 3835361A GB 982791 A GB982791 A GB 982791A
Authority
GB
United Kingdom
Prior art keywords
pressure
inert gas
gas
fan
valve
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
GB3835361A
Inventor
Angus Thomas Mackenzie
Ian Edmund Telfer
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.)
ANGUS THOMAS MACKENZIE
BP Shipping Ltd
Original Assignee
ANGUS THOMAS MACKENZIE
BP Shipping 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 ANGUS THOMAS MACKENZIE, BP Shipping Ltd filed Critical ANGUS THOMAS MACKENZIE
Priority to GB3835361A priority Critical patent/GB982791A/en
Publication of GB982791A publication Critical patent/GB982791A/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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B25/00—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby
    • B63B25/02—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods
    • B63B25/08—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods fluid
    • B63B25/10—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods fluid open to ambient air

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Ocean & Marine Engineering (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)

Abstract

982,791. Supplying inert gas to storage tanks &c. B.P. TANKER CO. Ltd., A. T. MACKENZIE, and E. TELFER. Oct. 10, 1962 [Oct. 26, 1961], No. 38353/61. Heading A5A. A system for supplying inert gas to storage tanks, e.g. in ships, comprises cooling means for inert gas (e.g. boiler flue gas, diesel exhaust gas or gas from a propane burner) and a fan for blowing the cooled gas into the tank, the maximum pressure which the fan can generate being equal to a predetermined value which is the pressure (usually slightly above atmospheric pressure) at which the tank is to be maintained. In the embodiment shown diagrammatically in Fig. 1, inert gas from a boiler uptake is drawn through a scrubber 1 and a filter 2 by the fan 3 driven by motor or turbine 4. The fan blows the inert gas into a main header 5 having side branches 6 carrying the gas to cargo tanks 7, each of which is fitted with a purging pipe 8 extending to the bottom of the tank and fitted with a valve (hinged cover with seal) 9, which enables gas to be blown through an empty tank to displace the air therein. Conversely, the fan may draw fresh air from the atmosphere through an inlet between valve 19 and scrubber 1 to replace inert gas with fresh air when desired. The main header 5 is vented to the air by vents 10, each of which is provided with a gate-valve 11 and a pressure and vacuum relief valve 12 connected in parallel, the former enabling tanks 7 to be vented during loading and the latter, being set to operate at + 2 and ¢ p.s.i.g., serving to release any pressure build-up due to volatilization of cargo. Inert gas is supplied to the main header 5 via a gate-valve 13 and non-return valve 14, and an oil-seal pressure and vacuum breaker 15 is provided as an additional safeguard. A pressure stat 16 is provided to start and stop the fan motor when the pressure reaches or falls to a predetermined figure (0.4 p.s.i.g. and 0.18 p.s.i.g. respectively), and an additional pressure stat 18 is set to give a warning if the pressure falls below 0.18 p.s.i.g. Specification 649,735 is referred to.
GB3835361A 1961-10-26 1961-10-26 Improvements relating to inert gas system for tank ships Expired GB982791A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3835361A GB982791A (en) 1961-10-26 1961-10-26 Improvements relating to inert gas system for tank ships

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3835361A GB982791A (en) 1961-10-26 1961-10-26 Improvements relating to inert gas system for tank ships

Publications (1)

Publication Number Publication Date
GB982791A true GB982791A (en) 1965-02-10

Family

ID=10402921

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3835361A Expired GB982791A (en) 1961-10-26 1961-10-26 Improvements relating to inert gas system for tank ships

Country Status (1)

Country Link
GB (1) GB982791A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1801769A1 (en) * 1967-10-10 1969-09-11 British Petroleum Co Ventilation system for storage or cargo tanks, especially for tankers
EP2089279A1 (en) * 2006-12-04 2009-08-19 Tool Tech As A device for an inert gas installation on a floating vessel
WO2016060894A1 (en) * 2014-10-15 2016-04-21 Cameron Solutions, Inc. System and method for safer venting of hydrogen or other combustible gases
CN107600329A (en) * 2017-08-25 2018-01-19 武汉船用机械有限责任公司 A kind of inert gas system and its test device and method

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1801769A1 (en) * 1967-10-10 1969-09-11 British Petroleum Co Ventilation system for storage or cargo tanks, especially for tankers
EP2089279A1 (en) * 2006-12-04 2009-08-19 Tool Tech As A device for an inert gas installation on a floating vessel
EP2089279A4 (en) * 2006-12-04 2013-01-09 Tool Tech As A device for an inert gas installation on a floating vessel
WO2016060894A1 (en) * 2014-10-15 2016-04-21 Cameron Solutions, Inc. System and method for safer venting of hydrogen or other combustible gases
US9732870B2 (en) 2014-10-15 2017-08-15 Cameron Solutions, Inc. System and method for safer venting of hydrogen or other combustible gases
US10677366B2 (en) 2014-10-15 2020-06-09 Cameron Solutions, Inc. System and method for safer venting of hydrogen or other combustible gases
CN107600329A (en) * 2017-08-25 2018-01-19 武汉船用机械有限责任公司 A kind of inert gas system and its test device and method
CN107600329B (en) * 2017-08-25 2019-07-19 武汉船用机械有限责任公司 A kind of test method of inert gas system

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