WO1985001928A1 - Method by submarine operations at large sea depths - Google Patents

Method by submarine operations at large sea depths Download PDF

Info

Publication number
WO1985001928A1
WO1985001928A1 PCT/NO1984/000047 NO8400047W WO8501928A1 WO 1985001928 A1 WO1985001928 A1 WO 1985001928A1 NO 8400047 W NO8400047 W NO 8400047W WO 8501928 A1 WO8501928 A1 WO 8501928A1
Authority
WO
WIPO (PCT)
Prior art keywords
pressure
diver
bell
diver bell
depths
Prior art date
Application number
PCT/NO1984/000047
Other languages
French (fr)
Inventor
Ole C. O^/STLUND
Original Assignee
O. C. O^/Stlund A/S
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 O. C. O^/Stlund A/S filed Critical O. C. O^/Stlund A/S
Priority to GB08515987A priority Critical patent/GB2158494B/en
Priority to BR8407140A priority patent/BR8407140A/en
Publication of WO1985001928A1 publication Critical patent/WO1985001928A1/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63C—LAUNCHING, HAULING-OUT, OR DRY-DOCKING OF VESSELS; LIFE-SAVING IN WATER; EQUIPMENT FOR DWELLING OR WORKING UNDER WATER; MEANS FOR SALVAGING OR SEARCHING FOR UNDERWATER OBJECTS
    • B63C11/00—Equipment for dwelling or working underwater; Means for searching for underwater objects
    • B63C11/34—Diving chambers with mechanical link, e.g. cable, to a base
    • B63C11/36—Diving chambers with mechanical link, e.g. cable, to a base of closed type
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B3/00—Hulls characterised by their structure or component parts
    • B63B3/13—Hulls built to withstand hydrostatic pressure when fully submerged, e.g. submarine hulls

Definitions

  • Hie invention is related to a method concerning sub ⁇ marine operations at large sea depths.
  • the diver bell designed for a sea depth corresponding to a pressure D 1 may be used at considerably larger sea dept corresponding to a pressure D- if the internal atmosphere of the diver bell is maintained at a pressure D- in such a way the difference between D, and D ⁇ constantly is kept less than D 1 .

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Drilling And Exploitation, And Mining Machines And Methods (AREA)
  • Electric Cable Installation (AREA)
  • Underground Or Underwater Handling Of Building Materials (AREA)
  • Other Liquid Machine Or Engine Such As Wave Power Use (AREA)
  • Pressure Vessels And Lids Thereof (AREA)
  • Mechanical Means For Catching Fish (AREA)

Abstract

Method by submarine operations at large sea depths by the use of a diver bell designed and constructed to withstand an outer pressure D1?, for submersion to a sea depth where an outer pressure D3? exists which is considerably larger than D1?, whereby an internal higher pressure D2? exists in the diver bell, in such a way that the difference between the pressures D3? and D2? constantly is less than the pressure D1? for which the diver bell is designated, whereby the personnel in the diver bell before submersion go through a phase of compression and after operation a phase of decompression.

Description

Method by submarine operations at large sea depths
Hie invention is related to a method concerning sub¬ marine operations at large sea depths.
As extraction of natural occurencies increasingly ar performed at larger sea depths, the requirement for inspect and possibilities to perform works of different kind at tho sea depths, also exists. Even if the operation depths for divers by new technology and new procedures constantly is increased, there will exist need behind this area for the use of divers bells of different kinds, even if the possibil ties of remote controlled units steadily is expanded.
Diver bells built for such sea depths which are requi will be very expensive of natural reasons, as to the design very complicated and correspondingly voluminous.
By the method according to the invention part of thos disadvantages connected to design and construction of such divers bells for large sea depths, are avoided, according to the features stated in the characterizing clause of the pate claims.
The diver bell designed for a sea depth corresponding to a pressure D1 may be used at considerably larger sea dept corresponding to a pressure D- if the internal atmosphere of the diver bell is maintained at a pressure D- in such a way the difference between D, and D~ constantly is kept less than D1.
In this way the possibilities for the use of diver bells is considerably expanded.
Diving below the depths for which the diver bell is designed is connected with a need for the personnel vΛiich is to be accomodated in the diver bell during submerging, to undergo a compression in such a way that they can live at th pressure D2« Thereafter the diver bell may be submerged to the depth corresponding to the pressure D,, inspection works or other works may be performed, whereafter the diver bell may be lifted and the personnel in the diver bell will have to go through a phase of decompression.
By the method according to the invention the applicat of the diver bell is considerably expanded and principly thi is only limited by the maximum acceptable compression pressu for the personnel.

Claims

P a t e n t C l a i m
Method by submarine operations at large sea depths, characterized in the use of a diver bell designed and constructed to withstand an outer pressure D1 - to submersion to a sea depth where an outer pressure D^ exists, which is considerably larger than D.., whereby the internal pressure in the diver bell is an increased pressure D, in such a way that the difference between the pressures D3 and D2 constant is less than the pressure D1 for which the diver bell is designed, whereas the personnel in the diver bell before submersion go through a phase of compression.
PCT/NO1984/000047 1983-10-27 1984-10-29 Method by submarine operations at large sea depths WO1985001928A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB08515987A GB2158494B (en) 1983-10-27 1984-10-29 Method by submarine operations at large sea depths
BR8407140A BR8407140A (en) 1983-10-27 1984-10-29 PROCESS FOR SUBMARINE OPERATIONS IN GREAT DEPTH OF THE SEA

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NO833924 1983-10-27
NO833924A NO833924L (en) 1983-10-27 1983-10-27 PROGRESS FOR UNDERWATER WORKS AT GREAT DEEP

Publications (1)

Publication Number Publication Date
WO1985001928A1 true WO1985001928A1 (en) 1985-05-09

Family

ID=19887321

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/NO1984/000047 WO1985001928A1 (en) 1983-10-27 1984-10-29 Method by submarine operations at large sea depths

Country Status (8)

Country Link
EP (1) EP0160045A1 (en)
AU (1) AU570518B2 (en)
BR (1) BR8407140A (en)
CA (1) CA1250187A (en)
GB (1) GB2158494B (en)
MX (1) MX161661A (en)
NO (1) NO833924L (en)
WO (1) WO1985001928A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2642035A1 (en) * 1989-01-25 1990-07-27 Tanaka Akio Diving submarine

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1159010A (en) * 1965-10-22 1969-07-23 Harold Herbert Walker Submersible Water Craft.
NO136803B (en) * 1971-03-05 1977-08-01 Sea Tank Co UNDERWATER TANK.

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1159010A (en) * 1965-10-22 1969-07-23 Harold Herbert Walker Submersible Water Craft.
NO136803B (en) * 1971-03-05 1977-08-01 Sea Tank Co UNDERWATER TANK.

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2642035A1 (en) * 1989-01-25 1990-07-27 Tanaka Akio Diving submarine

Also Published As

Publication number Publication date
BR8407140A (en) 1985-10-08
GB8515987D0 (en) 1985-07-31
NO833924L (en) 1985-04-29
EP0160045A1 (en) 1985-11-06
GB2158494B (en) 1987-09-09
GB2158494A (en) 1985-11-13
AU3552084A (en) 1985-05-22
CA1250187A (en) 1989-02-21
MX161661A (en) 1990-12-05
AU570518B2 (en) 1988-03-17

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