CA1250187A - Method by submarine operations at large sea depths - Google Patents
Method by submarine operations at large sea depthsInfo
- Publication number
- CA1250187A CA1250187A CA000466449A CA466449A CA1250187A CA 1250187 A CA1250187 A CA 1250187A CA 000466449 A CA000466449 A CA 000466449A CA 466449 A CA466449 A CA 466449A CA 1250187 A CA1250187 A CA 1250187A
- Authority
- CA
- Canada
- Prior art keywords
- pressure
- bell
- diver
- designed
- diver bell
- 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
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
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)
- Other Liquid Machine Or Engine Such As Wave Power Use (AREA)
- Electric Cable Installation (AREA)
- Underground Or Underwater Handling Of Building Materials (AREA)
- Mechanical Means For Catching Fish (AREA)
- Pressure Vessels And Lids Thereof (AREA)
Abstract
ABSTRACT OF THE DISCLOSURE
A method for submarine operations at large sea depths, in which a diver bell is used designed and con-structed to withstand an outer pressure D1, submerging said bell to a sea depth where an outer pressure D3 exists, which is considerably larger than D1, increasing the internal pressure in the diver bell to an increased pressure D2 in such a way that the difference between the pressure D3 and D2 constantly is less than the pressure D1 for which the diver bell is designed, and subjecting the personnel in the diver bell before sumbersion to a phase of compression.
A method for submarine operations at large sea depths, in which a diver bell is used designed and con-structed to withstand an outer pressure D1, submerging said bell to a sea depth where an outer pressure D3 exists, which is considerably larger than D1, increasing the internal pressure in the diver bell to an increased pressure D2 in such a way that the difference between the pressure D3 and D2 constantly is less than the pressure D1 for which the diver bell is designed, and subjecting the personnel in the diver bell before sumbersion to a phase of compression.
Description
~5~
The invention relates to a method for submarine opera-tions at great sea depths.
As the extraction of natural occurencies increasingly are performed at larger sea depths, the requirement for inspec-tion and the possibility to perform work of different kinds at those sea depths, also exis-ts. Even if the operation depths for divers by ~ew technology and new procedures constantly is lncreased, there will exist need behind this area for the use of divers bells of different types, even if the possibility for remote controlled units is steadily expanded.
Diver bells built for such sea depths will be very expensive for natural reasons, as to the design very complicated and correspondingly voluminous.
By the method according to the invention part of those disadvantages connected to design and construction of such divers bells for large sea depths, are avoided.
~0 According to the present invention there is provided a method for submarine operations at large sea depths, in which a diver bell is used designed and constructed to withstand an outer pressure Dl, submerging said bell to a sea depth where an outer pressure D3 exists, which is considerably larger than Dl, increa-sing the internal pressure in the diver bell to an increased pressure D2 in such a way that the difference between the pres-sure D3 and D2 constantly is less than the pressure Dl for which the diver bell is designed, and sub~ecting the personnel in the diver bell before submersion to a phase of compression.
The diver bell designed for a sea depth corresponding to a pressure Dl may be used at considerably larger sea depths, corresponding to a pressure D3 if the internal atmosphere of the diver bell is maintained at a pressure D2 in such a way that the difference between D3 and D2 constantly is kept less than Dl .
B ~
8~
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 ~or the personnel which is to be accommodated in the diver bell during submerging, to undergo a compression in such a way that they can live at the pressure D2.
Thereafter the diver bell may be submerged to the depth corre-sponding to the pressure D3, inspection work or other work may be performed, whereafter the diver bell may be raised and the per-sonnel in the diver bell will have to go through a phase of decompression.
By the method according to the invention the use of the diver bell is considerably expanded and in principle this is only limited by the maximum acceptable compression pressure for the personnel.
~ - 2 -.. , ~
The invention relates to a method for submarine opera-tions at great sea depths.
As the extraction of natural occurencies increasingly are performed at larger sea depths, the requirement for inspec-tion and the possibility to perform work of different kinds at those sea depths, also exis-ts. Even if the operation depths for divers by ~ew technology and new procedures constantly is lncreased, there will exist need behind this area for the use of divers bells of different types, even if the possibility for remote controlled units is steadily expanded.
Diver bells built for such sea depths will be very expensive for natural reasons, as to the design very complicated and correspondingly voluminous.
By the method according to the invention part of those disadvantages connected to design and construction of such divers bells for large sea depths, are avoided.
~0 According to the present invention there is provided a method for submarine operations at large sea depths, in which a diver bell is used designed and constructed to withstand an outer pressure Dl, submerging said bell to a sea depth where an outer pressure D3 exists, which is considerably larger than Dl, increa-sing the internal pressure in the diver bell to an increased pressure D2 in such a way that the difference between the pres-sure D3 and D2 constantly is less than the pressure Dl for which the diver bell is designed, and sub~ecting the personnel in the diver bell before submersion to a phase of compression.
The diver bell designed for a sea depth corresponding to a pressure Dl may be used at considerably larger sea depths, corresponding to a pressure D3 if the internal atmosphere of the diver bell is maintained at a pressure D2 in such a way that the difference between D3 and D2 constantly is kept less than Dl .
B ~
8~
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 ~or the personnel which is to be accommodated in the diver bell during submerging, to undergo a compression in such a way that they can live at the pressure D2.
Thereafter the diver bell may be submerged to the depth corre-sponding to the pressure D3, inspection work or other work may be performed, whereafter the diver bell may be raised and the per-sonnel in the diver bell will have to go through a phase of decompression.
By the method according to the invention the use of the diver bell is considerably expanded and in principle this is only limited by the maximum acceptable compression pressure for the personnel.
~ - 2 -.. , ~
Claims
PROPERTY OR PRIVILEGE IS CLAIMED ARE DEFINED AS FOLLOWS:
1. A method for submarine operations at large sea depths, in which a diver bell is used designed and construc-ted to withstand an outer pressure D1, submerging said bell to a sea depth where an outer pressure D3 exists, which is considerably larger than D1, increasing the internal pres-sure in the diver bell to an increased pressure D2 in such a way that the difference between the pressure D3 and D2 cons-tantly is less than the pressure D1 for which the diver bell is designed, and subjecting the personnel in the diver bell before submersion to a phase of compression.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NO833924A NO833924L (en) | 1983-10-27 | 1983-10-27 | PROGRESS FOR UNDERWATER WORKS AT GREAT DEEP |
| NO833924 | 1983-10-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1250187A true CA1250187A (en) | 1989-02-21 |
Family
ID=19887321
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000466449A Expired CA1250187A (en) | 1983-10-27 | 1984-10-26 | 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) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02197492A (en) * | 1989-01-25 | 1990-08-06 | Akio Tanaka | Submarine boat |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3387580A (en) * | 1965-10-22 | 1968-06-11 | Harold H. Walker | Submersible water craft |
| FR2127401A5 (en) * | 1971-03-05 | 1972-10-13 | Sea Tank Co |
-
1983
- 1983-10-27 NO NO833924A patent/NO833924L/en unknown
-
1984
- 1984-10-26 CA CA000466449A patent/CA1250187A/en not_active Expired
- 1984-10-29 MX MX203208A patent/MX161661A/en unknown
- 1984-10-29 BR BR8407140A patent/BR8407140A/en not_active IP Right Cessation
- 1984-10-29 AU AU35520/84A patent/AU570518B2/en not_active Ceased
- 1984-10-29 WO PCT/NO1984/000047 patent/WO1985001928A1/en unknown
- 1984-10-29 EP EP84903895A patent/EP0160045A1/en not_active Withdrawn
- 1984-10-29 GB GB08515987A patent/GB2158494B/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| EP0160045A1 (en) | 1985-11-06 |
| MX161661A (en) | 1990-12-05 |
| BR8407140A (en) | 1985-10-08 |
| GB8515987D0 (en) | 1985-07-31 |
| WO1985001928A1 (en) | 1985-05-09 |
| GB2158494A (en) | 1985-11-13 |
| AU3552084A (en) | 1985-05-22 |
| NO833924L (en) | 1985-04-29 |
| AU570518B2 (en) | 1988-03-17 |
| GB2158494B (en) | 1987-09-09 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |