CN115258080B - Self-elevating type submergence platform for deep sea mining emergency risk avoidance and risk avoidance method - Google Patents
Self-elevating type submergence platform for deep sea mining emergency risk avoidance and risk avoidance method Download PDFInfo
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- CN115258080B CN115258080B CN202211118728.5A CN202211118728A CN115258080B CN 115258080 B CN115258080 B CN 115258080B CN 202211118728 A CN202211118728 A CN 202211118728A CN 115258080 B CN115258080 B CN 115258080B
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- 238000005065 mining Methods 0.000 title claims abstract description 41
- 238000000034 method Methods 0.000 title claims abstract description 11
- 238000007667 floating Methods 0.000 claims abstract description 44
- 230000009189 diving Effects 0.000 claims description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 11
- 230000003014 reinforcing effect Effects 0.000 claims description 7
- 230000002265 prevention Effects 0.000 abstract 3
- 229910052500 inorganic mineral Inorganic materials 0.000 description 6
- 239000011707 mineral Substances 0.000 description 6
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 239000003351 stiffener Substances 0.000 description 2
- 206010039509 Scab Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 229910000510 noble metal Inorganic materials 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 150000003568 thioethers Chemical class 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B69/00—Equipment for shipping not otherwise provided for
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B21/00—Tying-up; Shifting, towing, or pushing equipment; Anchoring
- B63B21/50—Anchoring arrangements or methods for special vessels, e.g. for floating drilling platforms or dredgers
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Earth Drilling (AREA)
Abstract
The invention discloses a self-elevating submerged platform for the urgent danger prevention of deep sea mining and a danger prevention method, wherein the self-elevating submerged platform for the urgent danger prevention of deep sea mining comprises a submerged floating body, and the submerged floating body is provided with an upright post, a base and a power system; the upright posts are positioned on the side walls of the submerged floating bodies and are used for being connected with a mother ship; the base is positioned above the submerged floating body and is used for being connected with the lifting vertical pipe system; the power system is used for controlling the movement of the submerged floating body; the stand column is provided with a rack rail, and the submerged floating body can slide on the stand column through the rack rail. When the mining mother ship needs to be evacuated, the whole lifting riser system is deployed in the deep sea, so that the lifting riser system is separated from the mother ship; the lifting riser can be in an erect state in the deep sea by load-adjusting and positioning of the jack-up type submerging platform. The lifting vertical pipe and the mining vehicle do not need to be recycled, the workload is reduced, the time required for preparing to avoid severe sea conditions is shortened, and the emergency danger avoidance is further realized.
Description
Technical Field
The invention relates to the technical field of deep sea mining, relates to a self-elevating type submergence platform for deep sea mining emergency risk avoidance, and further relates to a deep sea mining emergency risk avoidance method.
Background
The ocean is populated with abundant mineral resources, most of which are currently focused on polymetallic nodules, polymetallic sulfides and cobalt-rich crusts, which are mainly concentrated on the ocean floor areas of the Pacific, atlantic and Indian ocean, as well as on the seafloor in the coastal national exclusive economic zone. The deep sea mineral resources are huge in quantity, have a plurality of important strategic resources and noble metal resources which are rare on land, and the grade is generally higher than that of land. The polymetallic nodules are mostly present in deep sea plains with water depths of 4000-6000m, and the total amount of global resources is about 3 trillion tons.
The development of deep sea mineral resources is different from the development of high-temperature high-pressure oil-gas resources which are buried under the seabed mud surface by thousands of meters. The oil and gas resource exploitation is suitable for a series fixed-point operation type production mode of a water surface platform, a vertical pipe system and an underwater production system, and a deep sea mineral exploitation mode adopts a series operation mode of a multifunctional water surface platform, a mineral slurry hydraulic lifting pipeline and a self-propelled mineral collector.
In the process of long-period operation of the deep sea mining platform at sea, extremely severe weather is inevitably encountered, and even the situation that the safety of the surface ship and personnel and equipment is endangered due to the fact that the underwater whole mining system is not recovered can occur. At this time, how to develop an emergency avoidance platform and how to realize the quick connection and disconnection of the underwater mining system and the surface mother ship under the emergency condition is an actual engineering problem related to the safety of the whole system.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, and provides a self-elevating submerged platform for deep sea mining emergency danger avoidance and a danger avoidance method, which are used for solving the technical problem that a mining ship cannot quickly avoid danger when the danger avoidance is required in severe sea conditions in the prior art.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
the self-elevating submerged platform for the emergency evacuation of the deep sea mining comprises a submerged floating body, wherein the submerged floating body is provided with an upright post, a base and a power system; the upright posts are positioned on the side walls of the submerged floating bodies and are used for being connected with a mother ship; the base is positioned above the submerged floating body and is used for being connected with the lifting vertical pipe system; the power system is used for controlling the movement of the submerged floating body; the stand column is provided with a rack rail, and the submerged floating body can slide on the stand column through the rack rail.
When the emergency is avoided, the device can lower the whole lifting vertical pipe into the deep sea, and the submerged floating body moves downwards along the vertical column to be separated from the mother ship, so that the lifting vertical pipe and the mining vehicle are not required to be recovered, only the submerged platform is required to be lowered, and the speed is higher.
Further, the upright post is installed and positioned on the front and rear bulkheads of the moon pool of the mining mother ship, and the rack rail is arranged on the upright post along the length direction.
Further, the structure of the submerged floating body is in a shape of a Chinese character 'hui', and the base for directly connecting the lifting vertical pipe is positioned at the center position above the submerged floating body.
Still further, through base support connection between base and the submergence body, the base support includes many connecting rods, and the one end of connecting rod is fixed on the base, and the other end is fixed on the roof and the interior side board of submergence body.
Still further, still be equipped with the stiffener, the connecting rod is located to the one end of stiffener, and the submergence body is located to the other end. The reinforcing rod is used for enhancing the connection strength between the base support and the submerged floating body and reducing shaking during relative movement.
Further, the dynamic positioning system comprises a ship position instrument and an electric control system, wherein the ship position instrument and the electric control system are both arranged on the submerged floating body, and the ship position instrument is electrically connected with the electric control system.
Still further, the dynamic positioning system also comprises a dynamic positioning propeller for 360-degree propulsion positioning, wherein the dynamic positioning propeller is arranged below the submerged floating body through a propeller bearing base and is electrically connected with the electric control system. The electric control system sends out control signals at any time according to the ship position value measured by the ship position instrument so as to change the running direction and the rotating speed of the dynamic positioning propeller.
Furthermore, the self-elevating type diving platform is locked on the upright post through a locking device, the locking device comprises a hydraulic rod and clamping teeth arranged at the movable tail end of the hydraulic rod, the tooth shape of the clamping teeth is matched with the rack track, and the hydraulic rod is controlled to work through an electric control system.
The weight of the submerging platform is large, so that hydraulic clamping with higher pressure is adopted. Although hydraulic clamping is more complex than pneumatic clamping and the movement of the piston is also relatively slow, the clamping pressure is greater than pneumatic clamping and is more suitable for the submerging platform.
The danger avoiding method of the self-elevating submerging platform for the deep sea mining emergency danger avoiding comprises the following steps:
s1, loosening a locking device of a self-elevating type diving platform;
s2, enabling the self-elevating type diving platform to descend below the water surface along the rack rail;
s3, the self-elevating type submerging platform is used for carrying out load adjustment submerging according to sea conditions;
s4, the mining mother ship is evacuated.
Further, when it is predicted that a severe sea condition occurs and an evacuation is required, the locking device is unlocked, the lifting riser system is lowered to the water surface along the rack rail along with the jack-up type submerging platform until the lifting riser system is separated from the mother ship, and then the lifting riser system is submerged to a safe depth along with the jack-up type submerging platform.
Compared with the prior art, the invention has the following beneficial effects:
according to the self-elevating submerged platform and the danger avoiding method for the deep sea mining emergency danger avoidance, when the situation that the mining mother ship needs to be evacuated in severe weather is predicted, the whole lifting vertical pipe system connected with the self-elevating submerged platform is submerged in the deep sea through the whole submerged arrangement, so that the lifting vertical pipe system is separated from the mother ship.
The whole lifting riser can be in an upright state in the deep sea by the load adjustment and positioning of the jack-up type submerging platform. The whole lifting vertical pipe is lowered into the deep sea, the lifting vertical pipe and the mining vehicle do not need to be recycled, only the self-elevating type submergence platform needs to be lowered, the workload is greatly reduced, the operation is more convenient, the time required for preparing and avoiding the severe sea condition of the mining ship is greatly shortened, the emergency risk avoidance is further realized, and the later-stage recovery production is facilitated.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a state diagram of the self-elevating submersible platform according to the present invention when the locking means are in contact.
In the drawings, each reference numeral is:
1-stand columns; 2-rack tracks; 3-a base; 4-a base bracket; 5-submerging a floating body; 6-a propeller bearing mount; 7-a dynamic positioning propeller; 8-a hydraulic rod; 9-clamping teeth.
Detailed Description
In order to more clearly illustrate the present invention, the present invention will be described in further detail below with reference to examples and with reference to the accompanying drawings. It is to be understood by persons skilled in the art that the following detailed description is illustrative and not restrictive, and that this invention is not limited to the details given herein.
In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "inner", "outer", "upper", "lower", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected, indirectly connected through an intermediate medium, or may be communication between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
Example 1:
the self-elevating submerged platform for the deep sea mining emergency risk avoidance as shown in fig. 1 and 2 comprises a stand column 1 fixedly connected with a mother ship, a rack rail 2 arranged on the stand column 1 along the length direction, a base 3 connected with a lifting vertical pipe system, a submerged floating body 5 and a dynamic positioning system. The dynamic positioning system and the base 3 are both arranged on the submerged floating body 5, and the submerged floating body 5 is movably connected with the rack rail 2.
The columns 1 are installed and positioned on the front and rear bulkheads of the moon pool of the mining mother ship, and the number of the columns 1 can be increased or decreased according to practical situations (such as the whole size, the mass and the like of the self-elevating type diving platform). The rack rails 2 are installed on the upright posts 1 along the length direction and are used for lifting and locking the self-elevating type diving platform, and the number of the rack rails is determined according to the number of the upright posts 1.
The structure of the submerged floating body 5 is in a shape like a Chinese character 'hui', and the base 3 is positioned at the center above the submerged floating body 5 and is used for being directly connected with the lifting vertical pipe. The base 3 is connected with the submerged floating body 5 through a base support 4, the base support 4 comprises a plurality of connecting rods, one ends of the connecting rods are fixed on the base 3, and the other ends of the connecting rods are fixed on a top plate and an inner side plate of the submerged floating body 5. In order to stabilize the connection between the base support 4 and the submerged floating body 5, shaking during relative movement is reduced, a reinforcing rod is further arranged, one end of the reinforcing rod is arranged on the connecting rod, and the other end of the reinforcing rod is arranged on the submerged floating body 5.
The submerged floating body 5 is used for submerged and floating load adjustment in water, and can freely lift on the rack rail 2 of the upright post 1 when on water. The ship position instrument, the electric control system, the dynamic positioning propeller 7 and other parts form a dynamic positioning system. When the electric control system works, the electric control system can automatically send out control signals according to the ship position numerical value measured by the ship position instrument at any time, and the running direction, the rotating speed and the like of the propeller are changed so as to adjust the posture of the submergence platform. The ship position instrument and the electric control system are both additionally arranged on the submerged floating body 5, and the dynamic positioning propeller 7 is arranged below the submerged floating body 5 through a propeller bearing base 6 and is used for 360-degree propulsion positioning according to the water body flow.
When the self-elevating type submerged platform for the deep sea mining emergency risk avoidance is produced in normal mining, the self-elevating type submerged platform is locked on the upright post 1 through the locking device, the locking device comprises a hydraulic rod 8 and clamping teeth 9 arranged at the movable tail end of the hydraulic rod 8, the tooth shape of the clamping teeth 9 is matched with the rack track 2, and the hydraulic rod 8 is controlled to work through the electric control system. The base 3 above the platform is connected with a lifting vertical pipe system; when the situation that the severe sea condition occurs and needs to be evacuated is received, the locking device is unlocked, the lifting vertical pipe system descends to the water surface along the rack rail 2 along with the self-elevating type diving platform until the lifting vertical pipe system is separated from the mother ship, then the lifting vertical pipe system descends to a safe depth along with the self-elevating type diving platform, and finally the mother ship is evacuated and sails to a safe sea area.
The deep sea mining emergency risk avoiding method comprises the self-elevating type diving platform for deep sea mining emergency risk avoiding, which comprises the following steps:
1. releasing the locking device of the self-elevating type diving platform.
2. The self-elevating type submerging platform is lowered below the water surface along the rack rail 2; the riser system is lowered along the rack rail with the jack-up submersible platform to the surface until disconnected from the mother vessel.
3. The self-elevating submerging platform is used for carrying out submerging according to sea conditions; the riser system is submerged to a safe depth with the jack-up type submergence platform.
4. And (5) evacuating the mining mother ship.
The self-elevating type diving platform of the embodiment is positioned in the moon pool of the mining mother ship, is connected with the top of the lifting vertical pipe through the base 3, and has the functions of autonomous elevation, diving and positioning; when a bad sea condition is predicted, and the mother ship needs to be evacuated, the whole lifting riser system can be lowered into the deep sea only by lowering the self-elevating type submerging platform, the lifting riser and the mining vehicle do not need to be recovered, the workload is greatly reduced, the automation degree is high, the operation is more convenient, and meanwhile, the time required by the mining ship for preparing to avoid the bad sea condition is greatly shortened, so that the emergency risk avoidance is realized; and is also convenient for recovery production after risk avoidance.
It should be understood that the foregoing examples of the present invention are merely illustrative of the present invention and not limiting of the embodiments of the present invention, and that various other changes and modifications can be made by those skilled in the art based on the above description, and it is not intended to be exhaustive of all the embodiments of the present invention, and all obvious changes and modifications that come within the scope of the invention are defined by the following claims.
Claims (7)
1. The self-elevating submerged platform for the emergency evacuation of the deep sea mining is characterized by comprising a submerged floating body, wherein the submerged floating body is provided with an upright post, a base and a power system; the upright posts are positioned on the side walls of the submerged floating bodies and are used for being connected with a mother ship; the base is positioned above the submerged floating body and is used for being connected with the lifting vertical pipe system; the power system is used for controlling the movement of the submerged floating body;
the upright post is provided with a rack rail, and the submerged floating body can slide on the upright post through the rack rail;
the base is connected with the submerged floating body through a base bracket, the base bracket comprises a plurality of connecting rods, one ends of the connecting rods are fixed on the base, and the other ends of the connecting rods are fixed on a top plate and an inner side plate of the submerged floating body; the device is also provided with a reinforcing rod, one end of the reinforcing rod is arranged on the connecting rod, and the other end of the reinforcing rod is arranged on the submerged floating body;
the structure of the submerged floating body is in a shape of a Chinese character 'hui', and the base is positioned at the center position above the submerged floating body.
2. The emergency evacuation jack-up submersible platform of claim 1, wherein the post mounts are positioned on the front and rear bulkheads of the moonpool of the mining mother vessel, and the rack tracks are provided on the posts in the length direction.
3. The deep sea mining emergency risk avoidance jack-up submergible platform of claim 1, wherein the dynamic positioning system comprises a berth instrument and an electrical control system, both of which are mounted on the submergible floating body, the berth instrument and the electrical control system being electrically connected.
4. A deep sea mining emergency risk avoiding jack-up submersible platform as recited in claim 3 wherein the powered positioning system further comprises a powered positioning thruster for 360 ° propulsion positioning, the powered positioning thruster being mounted below the submersible float by a thruster bearing mount, the powered positioning thruster being electrically connected to an electrical control system.
5. A deep sea mining emergency risk avoiding jack-up type submerging platform according to claim 3, wherein the jack-up type submerging platform is locked on the upright post through a locking device, the locking device comprises a hydraulic rod and clamping teeth arranged at the movable tail end of the hydraulic rod, the tooth shape of the clamping teeth is matched with a rack rail, and the hydraulic rod is controlled to work through an electric control system.
6. A deep sea mining emergency risk avoiding method, which is characterized by comprising the self-elevating type diving platform for deep sea mining emergency risk avoiding according to any one of claims 1-5, and comprising the following steps:
s1, loosening a locking device of a self-elevating type diving platform;
s2, enabling the self-elevating type diving platform to descend below the water surface along the rack rail;
s3, the self-elevating type submerging platform is used for carrying out load adjustment submerging according to sea conditions;
s4, the mining mother ship is evacuated.
7. The method of claim 6, wherein the locking device is unlocked when a forecast of a severe sea condition requiring evacuation is received, the riser system is lowered along the rack rail with the jack-up diving platform to the surface until it is disengaged from the mother vessel, and the riser system is then lowered with the jack-up diving platform to a safe depth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211118728.5A CN115258080B (en) | 2022-09-13 | 2022-09-13 | Self-elevating type submergence platform for deep sea mining emergency risk avoidance and risk avoidance method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211118728.5A CN115258080B (en) | 2022-09-13 | 2022-09-13 | Self-elevating type submergence platform for deep sea mining emergency risk avoidance and risk avoidance method |
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| CN115258080A CN115258080A (en) | 2022-11-01 |
| CN115258080B true CN115258080B (en) | 2023-11-24 |
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| CN202211118728.5A Active CN115258080B (en) | 2022-09-13 | 2022-09-13 | Self-elevating type submergence platform for deep sea mining emergency risk avoidance and risk avoidance method |
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| CN115258080A (en) | 2022-11-01 |
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