CN101786490B

CN101786490B - Semi-submersible device

Info

Publication number: CN101786490B
Application number: CN200910008405A
Authority: CN
Inventors: 郭仲轩
Original assignee: OCEAN ENGERY TECHNOLOGY Co Ltd
Current assignee: OCEAN ENGERY TECHNOLOGY Co Ltd
Priority date: 2009-01-22
Filing date: 2009-01-22
Publication date: 2012-10-10
Anticipated expiration: 2029-01-22
Also published as: CN101786490A

Abstract

The invention relates to a semi-submersible device which comprises a cabin body, a working platform and an overflow channel, wherein the cabin can submerge to an appropriate position below the sea level; the working platform is arranged on the sea level; the overflow channel is arranged between the cabin body and the working platform, has an appropriate distance with the sea level and is provided with an overflow channel water inlet pipe and an overflow channel water outlet pipe, wherein the overflow channel water inlet pipe is communicated with an outer cabin between an inner shell and an outer shell of the cabin body, the overflow channel water outlet pipe is communicated with a storage tank inside the inner shell, and the storage tank drains water away through a storage tank water outlet pipe; the cabin body is provided with a water inlet device so as to enable sea water to enter into the outer cabin; therefore, the pressure difference between the inner side and the outer side of the cabin body is reduced, and the extra shell load of the cabin body is lightened. In addition, the exercisable working area below the sea level can be increased by arranging an inner cabin of the inner shell, therefore, the condition that the weights at the front, back, left and right on the working platform are uneven can be avoided, and the cabin body can be arranged in the sea more stably by arranging the storage tank inside the inner shell.

Description

Semi-submersible device

Technical field

The present invention relates to a kind of semi-submersible device, body medial and lateral, particularly a kind of reduction cabin difference of pressure, thus alleviate the semi-submersible device that the cabin body case is loaded.

Background technology

Recently because the awakening of the consciousness of energy great calamity; People prospect the relevant operation of bathypelagic resource for existing offshore; Produced expectation further; So, go deep into the marine site that offshore distance is farther or sea state is comparatively dangerously steep, in an endless stream with the related development activity of obtaining the subsea resource of deep layer more.

Yet; Launch the deep layer seabed and prospect movable relevant device; Such as semisubmersible thermo-electric generation ship, semisubmersible work floating platform or underwater structure etc., will inevitably be in the face of overcoming the test of severeer volume weather or ocean current, and keep its degree of stability certain in the ocean; Otherwise not only equipment is destroyed overnight, and more likely jeopardizes staff's life.

As shown in Figure 4, a kind of existing semisubmersible work floating platform structure is provided with several support tube columns 92 below a work floating platform 91; Each support tube column 92 part is located at b.s.l.; Each support tube column 92 below is connected with the floating drum 93 of symmetry, by this, and work floating platform 91 is set in the ocean.

Yet; Each floating drum 93 inside and exterior difference of pressure are very big, so the wall of each floating drum 93 must bear huge external water pressure compressing, therefore; The wall thickness strength demand of each floating drum 93 is high; And each floating drum 93 volume is unsuitable excessive, just can keep out undersea big hydraulic pressure and turbulent undercurrents, selects to go up and produce the degree of difficulty on building so improved material.

Moreover because hydraulic pressure and in direct ratio apart from the degree of depth on sea level, each floating drum 93 must bear big hydraulic pressure; Generally speaking; Each floating drum 93 should not be dark excessively apart from the degree of depth on sea level, otherwise each floating drum 93 will be difficult to bear the excessive hydraulic pressure of load; In view of the above, produce the not good inferior position of single-piece semisubmersible work floating platform structural stability naturally.

In addition, the distribution of weight all around of semisubmersible work floating platform structure is uneven, so under the situation of the discontinuity of semisubmersible work floating platform structure own, certain, be the place of another not good crux of its degree of stability,

So, the semisubmersible work floating platform structure of prior art, reality has the space of improvement.

Summary of the invention

Main purpose of the present invention is that a kind of semi-submersible device is provided in order to address the above problem; Be sunken under the sea level under the one cabin body; One workplatform is arranged on the sea level; Be provided with an overflow groove between said workplatform and said cabin body, said overflow groove is positioned at the appropriate depth place of b.s.l., the storage tank in the seawater in the outer cabin between the inside and outside shell of said cabin body cabin in said overflow groove arrives inner casing; Therefore can reduce the pressure reduction of said outer cabin and said cabin external hydraulic pressure, reach the purpose of the high strength demand that reduces said shell.

Another purpose of the present invention is the semi-submersible device that provides a kind of submergence depth darker, reaches the purpose that improves the monolithic stability degree.

A purpose more of the present invention be to provide a kind of below the sea level in said inner casing said the cabin be provided with the semi-submersible device of a work area in addition; Not only can increase the work area; More can pass through a storage tank setting, improve distribution of weight inequality all around, reach the stressed purpose of balance semi-submersible device.

In order to achieve the above object, the invention provides a kind of semi-submersible device, it comprises:

One cabin body, said cabin body can sink down into the b.s.l. appropriate location, and said cabin body has an osed top shell and an osed top inner casing; Define an outer cabin between said inner casing and said shell jointly, and said inner casing inside is cabin in, said in the cabin be provided with a storage tank; Said storage tank connects a storage tank freeing arrangement; Said storage tank freeing arrangement is communicated with the external side in said cabin, and described cabin body is provided with a water feed apparatus, gets into said outer cabin with the seawater of controlling said cabin external.

One workplatform, this workplatform are located at body top, said cabin, and said workplatform emersion sea level.

One overflow groove; This overflow groove is located between said cabin body and said workplatform; Said overflow groove is located at b.s.l. one appropriate depth place; And said overflow groove is provided with an overflow groove coolant inlet pipe and an overflow groove drain hose, the said outer cabin of said overflow groove coolant inlet pipe connection, the storage tank in cabin in said overflow groove drain hose connection is said.

Beneficial effect of the present invention: the hydraulic pressure P2 between cabin body case and the inner casing, can offset the hydraulic pressure P1 that the part shell bears, to lower the hydraulic pressure P1 of the required opposing of shell; Therefore, the strength demand of shell is many compared to the obvious minimizing of strength demand of the hydraulic pressure P1 that existing shell is directly resisted, thus; Can be more easily the submergence depth of semi-submersible device be further goed deep into the seabed and be provided with, thereby improve the preferable degree of stability of semi-submersible device of the present invention, simultaneously; Also can reduce the material cost and the single-piece difficulty of construction of shell, thereby increase productivity effect of the present invention, in addition; The setting in the interior cabin of inner casing can increase exercisable work area, below, sea level, and can improve this workplatform uneven situation of weight distribution all around by this; The setting of inner casing in-to-in storage tank is arranged in the ocean cabin body more reposefully.

Above-mentioned and other purposes and advantage of the present invention are not difficult from following detailed description and accompanying drawing of selecting embodiment for use, to obtain to understand in depth.

Certainly, the present invention is at some in addition on part, or allows in the arrangement of part differently in addition, but the embodiment that is selected for use then in this specification sheets, specifies, and in accompanying drawing its structure of displaying.

Description of drawings

Fig. 1 is the planar structure scheme drawing of preferred embodiment of the present invention;

Fig. 2 is the perspective view of preferred embodiment of the present invention;

Fig. 3 is the diagram of work of preferred embodiment of the present invention;

Fig. 4 is the schematic perspective view of existing semisubmersible work floating platform structure.

The specific embodiment

The example structure that the present invention selected for use only supplies the usefulness of explanation, in patent application, does not receive the restriction of this kind structure.

Referring to Fig. 1～shown in Figure 3, be the preferred embodiment structure explanation of semi-submersible device of the present invention, it includes a cabin body 1, an overflow groove 2 and a workplatform 3.

Cabin body 1 can sink down into the appropriate location of sea level below 4, and cabin body 1 has an osed top shell 11 and an osed top inner casing 12, and inner casing 12 is arranged on shell 11 inside; 11 on inner casing 12 and shell define an outer cabin 13 jointly, and inner casing 12 inside are cabin 14 in, and interior cabin 14 is provided with a storage tank 15; Storage tank 15 connects a storage tank freeing arrangement 16; Storage tank freeing arrangement 16 is communicated with shell 11 outsides, and cabin body 1 is provided with a water feed apparatus, and getting into control cabinet body 1 exterior seawater 41 should outer cabin 13.

Workplatform 3 is located at cabin body 1 top, and workplatform 3 emersion sea level 4.

Storage tank freeing arrangement 16 includes a storage tank drain hose 161, a non-return valve and a Water-pumping motor; And an end of storage tank drain hose 161 is communicated with storage tank 15; The other end of storage tank drain hose 161 is communicated with body 1 outside, cabin; The keying of storage tank freeing arrangement 16 control storage tank drain hoses 161, and the non-return valve of storage tank freeing arrangement 16 can prevent that seawater 41 from pouring in down a chimney.

Water feed apparatus includes a coolant inlet pipe 17 and a water inlet gate valve 171; One end of this coolant inlet pipe 17 is located at the outer cabin 13 of 11 on inner casing 12 and shell; Coolant inlet pipe 17 passes inner casing 12 and gets into interior cabin 14, and coolant inlet pipe 17 becomes a bending segment 172 in 14 inner bendings of interior cabin, passes inner casing 12 and shell 11 after coolant inlet pipe 17 bendings and then is communicated with body 1 outside, cabin; The bending segment 172 of coolant inlet pipe 17 is provided with a water inlet gate valve 171, water inlet gate valve 171 able to turn on or off coolants inlet pipe 17.

Be provided with several freeing arrangements 131 in the outer cabin 13 that inner casing 12 and shell are 11; Each freeing arrangement 131 includes a drain hose 132, a non-return valve and a Water-pumping motor respectively; Each drain hose 132 is communicated with cabin body 1 outside respectively; Each freeing arrangement 131 can be controlled the keying of each drain hose 132 respectively, and the non-return valve of each freeing arrangement 131 can prevent that seawater 41 from pouring in down a chimney.

11 on inner casing 12 and shell are provided with several bracing frames 133, and to increase the intensity of cabin body 1,3 of cabin body 1 and workplatformes are provided with several pillar stiffeners 31.

Overflow groove 2 is located at 3 of cabin body 1 and workplatformes; Overflow groove 2 is located at sea level 4 with next appropriate depth H place; And overflow groove 2 is provided with an overflow groove coolant inlet pipe 21 and an overflow groove drain hose 22, and overflow groove coolant inlet pipe 21 is communicated with outer cabin 13, the storage tank 15 in cabin 14 in overflow groove drain hose 22 is communicated with.

3 of cabin body 1 and workplatformes are connected with an outer tubing string 5, and an end of outer tubing string 5 is located at the interior cabin 14 of cabin body 1, and overflow groove 2 is located in the outer tubing string 5.

Be provided with several wirerope strainers 32 around the workplatform 3; The outside of cabin body 1 each wirerope strainer 32 relatively is provided with several fixed pulleys 18; Each wirerope strainer 32 is located at an end of a wirerope 33 respectively; The other end of each wirerope 33 is located at the seabed around each fixed pulley 18 respectively, therefore can locate semi-submersible device of the present invention in the sea.

During use, as shown in Figure 3, at first, transport semi-submersible device of the present invention to predetermined offshore position; Adjust each wirerope strainer 32, and an end of each wirerope 33 is located at the seabed, and the position of locating semi-submersible device of the present invention is in the sea, and can not drift about with ocean current; During sinking, open earlier water inlet gate valve 171, make seawater 41 flow into the outer cabin 13 of 11 on inner casings 12 and shell, at this moment via coolant inlet pipe 17; Outer cabin 13 beginning water-fillings, cabin body 1 begins to sink, and after outer cabin 13 was full of seawater 41, seawater 41 flowed into overflow pipe 21; Seawater 41 in the overflow pipe 21 are flowed through overflow groove 2 and overflow groove drain hose 22 and are injected inner casing 12 in-to-in storage tanks 15, after the seawater storage tank 15 in 41 is increased to suitable degree, can close into water gate valve 171, so can locate the offshore position of this semi-submersible device; Wherein, when cabin body 1 apart from sea level 4 during with next appropriate location, shell 11 outsides have a hydraulic pressure P1, and the hydraulic pressure in

shell

11 and 12 outer cabins 13 of inner casing is P2; Wherein, P1 is greater than P2, and the shell 11 actual hydraulic pressure that bear are P1-P2; Therefore, can reduce the differential water pressures in shell 11 inboards and the outside, the hydraulic pressure that shell 11 can be lightened the load.

During draining; Start the Water-pumping motor of storage tank freeing arrangement 16; And the Water-pumping motor of

inner casing

12 and 11 freeing arrangements 131 of shell; Seawater 41 can be discharged via this overflow groove drain hose 161 and each drain hose 132 respectively, and after the seawater 41 in the outer cabin 13 that inner casing 12 and shell are 11 was discharged, semi-submersible device of the present invention can float.

Semi-submersible device of the present invention by the hydraulic pressure P2 between shell 11 and the inner casing 12, can offset the hydraulic pressure P1 that the part shell bears; To lower the hydraulic pressure P1 of shell 11 required opposings, therefore, the strength demand of the hydraulic pressure P1 that the strength demand of this shell 11 is directly resisted compared to existing shell; Obviously reduce manyly, thus, can be more easily the submergence depth of semi-submersible device be further goed deep into the seabed and be provided with; Thereby improve the preferable degree of stability of semi-submersible device of the present invention, simultaneously, also can reduce the material cost and the single-piece difficulty of construction of shell 11; Thereby increase productivity effect of the present invention, in addition, the setting in the interior cabin 14 of inner casing 12; Can increase exercisable work area, 4 belows, sea level, and can be by this and, all around the uneven situation of weight distribution with on this workplatform 3; By the setting of these inner casing 12 in-to-in storage tanks 15, cabin body 1 is arranged in the ocean more reposefully.

Claims

1. semi-submersible device, it is characterized in that: it comprises:

One cabin body, said cabin body sinks down into the b.s.l. appropriate location, and said cabin body has an osed top shell and an osed top inner casing; Define an outer cabin between said inner casing and said shell jointly, and said inner casing inside is cabin in, said in the cabin be provided with a storage tank; Said storage tank connects a storage tank freeing arrangement; Said storage tank freeing arrangement is communicated with the external side in this cabin, and said cabin body is provided with a water feed apparatus, gets into said outer cabin with the seawater of controlling said cabin external;

One workplatform, this workplatform are located at body top, cabin, and described workplatform emersion sea level;

One overflow groove; This overflow groove is located between said cabin body and said workplatform; Said overflow groove is located at said b.s.l. place; And said overflow groove is provided with an overflow groove coolant inlet pipe and an overflow groove drain hose, and said overflow groove coolant inlet pipe is communicated with said outer cabin, the storage tank in cabin in said overflow groove drain hose is communicated with.

2. semi-submersible device according to claim 1 is characterized in that: be connected with an outer tubing string between said cabin body and said workplatform, an end of this outer tubing string is located at the interior cabin of cabin body, and said overflow groove is located in the said outer tubing string.

3. semi-submersible device according to claim 1; It is characterized in that: said storage tank freeing arrangement includes a storage tank drain hose, a non-return valve and a Water-pumping motor; One end of said storage tank drain hose is communicated with said storage tank; The other end of said storage tank drain hose is communicated with the external side in said cabin, and said storage tank freeing arrangement is controlled the keying of said storage tank drain hose.

4. semi-submersible device according to claim 1; It is characterized in that: said water feed apparatus includes a coolant inlet pipe and a water inlet gate valve; One end of said coolant inlet pipe is located at the outer cabin between said inner casing and this shell, and said coolant inlet pipe pass said inner casing get into said in the cabin, the cabin inner bending in said of said coolant inlet pipe becomes a bending segment; Pass said inner casing and said shell after the said coolant inlet pipe bending and then be communicated with the external side in said cabin, and the bending segment of said coolant inlet pipe is provided with into water gate valve.

5. semi-submersible device according to claim 4; It is characterized in that: be provided with several freeing arrangements in the outer cabin between said inner casing and said shell; Each freeing arrangement includes a drain hose, a non-return valve and a Water-pumping motor; Each drain hose is communicated with the external side in said cabin respectively, and each freeing arrangement is controlled the keying of each drain hose respectively.

6. semi-submersible device according to claim 1 is characterized in that: be provided with several pillar stiffeners between said cabin body and said workplatform.

7. semi-submersible device according to claim 1; It is characterized in that: be provided with several wirerope strainers around the said workplatform, each wirerope strainer connects an end of each wirerope respectively, and the other end of each wirerope is located at the seabed; Adjust each wirerope strainer, said cabin body is positioned this sea level.

8. semi-submersible device according to claim 7; It is characterized in that: the outside of said cabin body each said wirerope strainer relatively is provided with several fixed pulleys; One end of each said wirerope is provided with each said wirerope strainer, and the other end of each said wirerope is each fixed pulley of winding and be located at the seabed respectively.