CN117262103A - Ocean fluid extraction system and ocean fluid extraction method - Google Patents

Abstract

The invention provides a marine fluid extraction system and a marine fluid extraction method, wherein the marine fluid extraction system comprises a lifting pump, a lifting pipe extending along the up-down direction, a hanging bracket arranged on a deck of a ship body, an upper section sliding rail arranged on the hanging bracket, a lower section sliding rail arranged on the outer side wall of the ship body, a sliding block matched with the lower section sliding rail, and a communicating pipe arranged on the sliding block, wherein a pump inlet of the lifting pump is communicated with one end of the communicating pipe, the other end of the communicating pipe is detachably connected with the upper end of the lifting pipe, the lower end of the lifting pipe stretches into the sea, the lower end of the upper section sliding rail is in butt joint with the upper end of the lower section sliding rail, a traction mechanism is arranged on the hanging bracket and is connected with the sliding block, and the inclination state of the hanging bracket can be changed. The ocean fluid extraction system and the ocean fluid extraction method can realize extraction of deeper fluid, and are simple to operate, low in cost and convenient to maintain.

Description

Ocean fluid extraction system and ocean fluid extraction method

Technical Field

The invention relates to the technical field of marine engineering, in particular to a marine fluid extraction system and a marine fluid extraction method.

Background

Marine vessels and marine engineering structures must extract seawater from their external marine environment for use in cooling systems, fire protection systems, domestic and household systems, etc. during sailing, movement and operation. Some productive marine structures also extract seawater for use in production processes such as marine oil rigs, floating oil production storage and offloading (FPSO), floating liquefied natural gas production storage and offloading (FLNG), marine mining platforms, and the like.

Existing solutions for extracting seawater during sailing, moving and working of ships and marine engineering structures mainly have four types of sea bottom door type seawater extraction systems, hose winch type, independent installation tower type and pile leg installation tower type. As shown in fig. 1, the sea chest seawater extraction system mainly comprises a high-level sea chest D1, a low-level sea chest D2, a suction grille D3, a sea valve D4, a strainer D5, a sea water main D6, a sea water pump D7, and the like. The outboard seawater enters the seawater main pipe D6 through the suction grille D3, the high-level sea chest D1, the low-level sea chest D2, the sea valve D4 and the strainer D5, is sucked by the seawater pump D7 with the suction inlet connected with the seawater main pipe D6, and is finally conveyed to equipment and a system needing to use the seawater. The main advantages of this sea floor door type sea water extraction system are: the system is simple, mature and reliable; the water intake is large, the cost is low, and water can be taken in the course of navigation. However, such a sea chest seawater extraction system also has the following drawbacks: the water intake depth is generally shallow and cannot meet the deep water intake requirement due to the limitation of the draft of the ship body. For a ship with a weight of about 10 ten thousand tons, the water intake depth is only about 13m, and the smaller the ship is, the shallower the draft is. And because the water intake depth is shallower, the floater and suspended solid near the easy suction sea surface cause whole water intake pipeline to be blocked easily, and the cleanliness of the obtained water is lower, influences subsequent use.

Disclosure of Invention

In view of the above-mentioned drawbacks of the prior art, the present invention is directed to providing a marine fluid extraction system that is capable of extracting deeper marine fluids.

In order to achieve the above object, the invention provides a marine fluid extraction system, which comprises a lift pump, a lift pipe extending along the up-down direction, a hanging bracket arranged on a deck of a ship body, an upper section sliding rail arranged on the hanging bracket, a lower section sliding rail arranged on the outer side wall of the ship body, a sliding block matched with the lower section sliding rail, and a communicating pipe arranged on the sliding block, wherein a pump inlet of the lift pump is communicated with one end of the communicating pipe, the other end of the communicating pipe is detachably connected with the upper end of the lift pipe, the lower end of the lift pipe stretches into the sea, the lower end of the upper section sliding rail is in butt joint with the upper end of the lower section sliding rail, a traction mechanism is arranged on the hanging bracket, the traction mechanism is connected with the sliding block, and the inclination state of the hanging bracket can be changed.

Further, a stop block is arranged at the lower end of the lower section of sliding rail, and the stop block can limit the sliding block on the lower section of sliding rail to move downwards.

Further, a winding drum is installed on the deck, the lifting pipe adopts a lifting hose, and the winding drum is used for winding and storing the lifting hose.

Further, the lift pump is installed in the cabin of the ship body, an interface is arranged on the side wall of the ship body, a pump inlet of the lift pump is communicated with the interface, and one end of the communicating pipe is communicated with the interface.

Further, a pump inlet of the lift pump is communicated with the interface through an inner cabin pipe, and an isolation valve is arranged on the inner cabin pipe.

Further, the communicating pipe comprises an elbow arranged on the sliding block, one end of the elbow is communicated with a pump inlet of the lifting pump, and the other end of the elbow is communicated with the upper end of the lifting pipe.

Further, the elbow is movably connected with the sliding block, and the elbow can rotate relative to the sliding block.

Further, the lift pump is installed on the slider through the fixed bolster, the pump outlet of lift pump is linked together with conveyer pipe one end, the other end of conveyer pipe communicates with each other with the inside of hull.

Further, the lower extreme of gallows and the first support swing joint of installing on the deck, the upper end of gallows and the one end swing joint of flexible actuating arm, the other end of flexible actuating arm and the second support swing joint of installing on the deck.

As described above, the marine fluid extraction system according to the present invention has the following advantageous effects:

This ocean fluid extraction system is based on above-mentioned structural design, when receiving and storing, riser, communicating pipe and slider all can deposit on the deck to guarantee can not cause the influence to the normal navigation of hull, and made things convenient for overhauling, maintenance etc. these parts. When the lifting pipe is placed, the lifting pipe and the communicating pipe can be connected on the deck, the operation is convenient, the upper section sliding rail is abutted to the lower section sliding rail by utilizing the inclination of the hanging frame, the sliding block is released by the traction mechanism, the sliding block and the communicating pipe can slide to the set position on the lower section sliding rail along the upper section sliding rail, the placement is completed, the whole operation is very simple, and at the moment, the lower end of the lifting pipe stretches into the set depth position in the sea, the lifting pump is communicated with the upper end of the lifting pipe through the communicating pipe, the lifting pipe does not need to bear the weight of the lifting pump, so that the length of the lifting pipe can be longer, thereby the fluid deeper in the sea can be extracted, the lifting pump does not need to stretch into the deeper position in the sea, the cost required for ensuring the normal use of the lifting pump is greatly reduced, the lifting pump can be conveniently and quickly maintained when the lifting pump is abnormal, meanwhile, the lifting pump, the communicating pipe, the lifting pipe and the lifting pipe are all positioned below the deck are required to be stored in the position in the ship body, the lifting pump is not required to be lifted to the deck, the upper side when the extracted fluid is positioned below the deck, the lifting pipe is required to be lifted, the lifting the fluid is not required to be used, the fluid is required to be used, and the fluid consumption is avoided to flow in the ship body is reduced, and the fluid consumption is avoided.

Another technical problem to be solved by the present invention is to provide a method for extracting ocean fluid, which can extract deeper ocean fluid.

In order to achieve the above object, the present invention provides a marine fluid extraction method using the marine fluid extraction system, comprising the steps of:

a storage ocean fluid extraction system: the lifting pipe is stored on a deck of the ship body, the lifting pipe is disconnected with the communicating pipe, the sliding block and the communicating pipe stay on the upper section sliding rail under the traction action of the traction mechanism, the upper section sliding rail is staggered with the lower section sliding rail, and the sliding block and the communicating pipe are positioned right above the deck;

deploying a marine fluid extraction system: the lower end of the lifting pipe is extended into the ocean to a set depth, the upper end of the lifting pipe is connected with the communicating pipe on the deck, the hanging frame inclines to the side edge of the ship body and drives the upper-section sliding rail to move to the side edge of the ship body, the upper-section sliding rail is in butt joint with the lower-section sliding rail, the traction mechanism releases the sliding block, the sliding block and the communicating pipe slide downwards along the upper-section sliding rail and the lower-section sliding rail until the sliding block slides to a set position on the lower-section sliding rail, at the moment, the lifting pump is positioned at a set position below the deck, and a pump inlet of the lifting pump is communicated with the lifting pipe through the communicating pipe;

Extracting marine fluid: the lifting pump is started, ocean fluid enters the lower end of the lifting pipe, flows upwards into the communicating pipe through the lifting pipe, and flows to a set position in the ship body through the communicating pipe and the lifting pump.

As described above, the ocean fluid extraction method according to the present invention has the following advantageous effects:

according to the ocean fluid extraction method, based on the steps, when the ocean fluid is stored, the lifting pipe, the communicating pipe and the sliding block can be stored on the deck, so that normal sailing of a ship body is guaranteed not to be influenced, and overhaul, maintenance and the like of the components are facilitated. When the lifting pipe is placed, the lifting pipe and the communicating pipe can be connected on the deck, the operation is convenient, the upper section sliding rail is abutted to the lower section sliding rail by utilizing the inclination of the hanging frame, the sliding block is released by the traction mechanism, the sliding block and the communicating pipe can slide to the set position on the lower section sliding rail along the upper section sliding rail, the placement is completed, the whole operation is very simple, and at the moment, the lower end of the lifting pipe stretches into the set depth position in the sea, the lifting pump is communicated with the upper end of the lifting pipe through the communicating pipe, the lifting pipe does not need to bear the weight of the lifting pump, so that the length of the lifting pipe can be longer, thereby the fluid deeper in the sea can be extracted, the lifting pump does not need to stretch into the deeper position in the sea, the cost required for ensuring the normal use of the lifting pump is greatly reduced, the lifting pump can be conveniently and quickly maintained when the lifting pump is abnormal, meanwhile, the lifting pump, the communicating pipe, the lifting pipe and the lifting pipe are all positioned below the deck are required to be stored in the position in the ship body, the lifting pump is not required to be lifted to the deck, the upper side when the extracted fluid is positioned below the deck, the lifting pipe is required to be lifted, the lifting the fluid is not required to be used, the fluid is required to be used, and the fluid consumption is avoided to flow in the ship body is reduced, and the fluid consumption is avoided.

Drawings

Fig. 1 is a schematic diagram of a prior art bottom gate seawater extraction system.

Fig. 2 is a schematic structural diagram of a marine fluid extraction system in a storage state according to an embodiment of the invention.

Fig. 3 is a schematic view illustrating positions of a communicating tube and a slider in a storage state according to a first embodiment of the present invention.

Fig. 4 is a schematic diagram of a marine fluid extraction system according to an embodiment of the invention.

Fig. 5 is a schematic view showing the positions of the communicating and sliding blocks when extracting marine fluid according to the first embodiment of the present invention.

Fig. 6 is a schematic diagram of a connection structure among a fishing net, a lifting pipe and a trawl wire rope during fishing according to the first embodiment of the present invention.

Fig. 7 is a schematic view illustrating positions of a hanger, an upper slide rail, and a lower slide rail in a stored state according to a first embodiment of the present invention.

Fig. 8 is a schematic diagram of a marine fluid extraction system according to an embodiment of the invention in a deployment process.

Fig. 9 is a schematic diagram showing a connection structure among a fishing net, a trawl wire and a riser when extracting marine fluid according to the first embodiment of the present invention.

Fig. 10 is a schematic structural diagram of a marine fluid extraction system according to a second embodiment of the present invention.

Fig. 11 is a schematic diagram showing the positions of the lift pump, the transfer pipe, and the communication pipe when extracting the ocean fluid in the second embodiment of the present invention.

Fig. 12 is a schematic diagram of a connection structure among a fishing net, a trawl wire, and a riser when extracting ocean fluid in the second embodiment of the present invention.

Description of element reference numerals

D1 Upper section slide rail of high-position sea bottom door 51

D2 Lower section slide rail of low-position sea bottom door 52

D3 Suction grille 53 slider

D4 Sea valve 54 communicating pipe

D5 Coarse filter 541 elbow

D6 Seawater main pipe 542 connected main pipe

D7 Sea water pump 55 cabin inner pipe

1. Isolation valve of lift pump 56

2. Riser 57 fixing support

3. Cross joint of hull 58

31. First support 6 reel

32. Conveying pipe of telescopic driving arm 7

33. Second support 8 fishing net

4. Hanger 81 trawl wire rope

Detailed Description

Further advantages and effects of the present invention will become apparent to those skilled in the art from the disclosure of the present invention, which is described by the following specific examples.

It should be understood that the structures, proportions, sizes, etc. shown in the drawings are for illustration purposes only and should not be construed as limiting the invention to the extent that it can be practiced, since modifications, changes in the proportions, or adjustments of the sizes, which are otherwise, used in the practice of the invention, are included in the spirit and scope of the invention which is otherwise, without departing from the spirit or scope thereof. Also, the terms "upper", "lower", "left", "right", "middle" and "a" are used herein for descriptive purposes only and are not intended to limit the scope of the invention for which the invention may be practiced, but rather the relative relationships thereof may be altered or modified without materially altering the technology.

Example 1

As shown in fig. 2 to 9, the present embodiment provides a marine fluid extraction system, which comprises a lift pump 1, a lift pipe 2 extending in the up-down direction, a hanger 4 mounted on the deck of a hull 3, an upper stage rail 51 mounted on the hanger 4, a lower stage rail 52 mounted on the outer side wall of the hull 3, a slider 53 mated with the lower stage rail 52, and a communicating pipe 54 mounted on the slider 53, wherein the pump inlet of the lift pump 1 is communicated with one end of the communicating pipe 54, the other end of the communicating pipe 54 is detachably connected with the upper end of the lift pipe 2, the lower end of the lift pipe 2 extends into the sea, the lower end of the upper stage rail 51 is abutted with the upper end of the lower stage rail 52, and a traction mechanism is provided on the hanger 4, the traction mechanism is connected with the slider 53, and the inclination state of the hanger 4 can be changed.

Meanwhile, the embodiment provides a marine fluid extraction method adopting the marine fluid extraction system, which comprises the following steps:

a storage ocean fluid extraction system: the lifting pipe 2 is stored on the deck of the ship body 3, the lifting pipe 2 is disconnected with the communicating pipe 54, the sliding block 53 and the communicating pipe 54 stay on the upper-section sliding rail 51 under the traction action of the traction mechanism, the upper-section sliding rail 51 is staggered with the lower-section sliding rail 52, and the sliding block 53 and the communicating pipe 54 are positioned right above the deck;

deploying a marine fluid extraction system: the lower end of the lifting pipe 2 is extended into the ocean to a set depth, the upper end of the lifting pipe 2 is connected with a communicating pipe 54 on a deck, the hanging bracket 4 inclines to the side edge of the ship body 3 and drives the upper-section sliding rail 51 to move to the side edge of the ship body 3, the upper-section sliding rail 51 is in butt joint with the lower-section sliding rail 52, the traction mechanism releases a sliding block 53, the sliding block 53 and the communicating pipe 54 slide downwards along the upper-section sliding rail 51 and the lower-section sliding rail 52 until the sliding block 53 slides to a set position on the lower-section sliding rail 52, at the moment, the lifting pump 1 is positioned at a set position below the deck, and a pump inlet of the lifting pump 1 is communicated with the lifting pipe 2 through the communicating pipe 54;

extracting marine fluid: the lift pump 1 is started, and the ocean fluid enters the lower end of the lift pipe 2, flows upward into the communicating pipe 54 through the lift pipe 2, and flows to a set position in the hull 3 through the communicating pipe 54 and the lift pump 1.

The ocean fluid extraction system in this embodiment is based on the above structural design and the above method steps, and when in storage, the riser 2, the communication pipe 54 and the slider 53 can be stored on the deck, so as to ensure that normal sailing of the hull 3 is not affected, and to facilitate overhaul and maintenance of these components. When the lifting pipe 2 and the communicating pipe 54 are arranged on the deck, the lifting pipe 2 and the communicating pipe 54 can be connected, the operation is convenient, the upper section sliding rail 51 is butted with the lower section sliding rail 52 by utilizing the inclination of the hanging frame 4, the sliding block 53 is released by the traction mechanism, the sliding block 53 and the communicating pipe 54 can slide to the set position on the lower section sliding rail 52 along the upper section sliding rail 51, the arrangement is completed, the whole operation is very simple, at the moment, the lower end of the lifting pipe 2 stretches into the set depth position in the sea, the lifting pump 1 is communicated with the upper end of the lifting pipe 2 through the communicating pipe 54, the lifting pipe 2 does not need to bear the weight of the lifting pump 1, so that the length of the lifting pipe 2 can be longer, fluid deeper in the sea can be extracted, the lifting pump 1 does not need to stretch into the deeper position in the sea, the cost required for ensuring the normal use of the lifting pump 1 is greatly reduced, and when the lifting pump 1 is abnormal, simultaneously, the lifting pump 1, the communicating pipe 54, the lifting pipe 2 and the like are positioned below the deck and the deck are convenient to maintain, the lifting pump 1 is positioned below the set position in the sea, the ship body is not required to be used, the fluid consumption is reduced, and the fluid consumption is avoided to flow in the ship body is reduced when the lifting position is required to be lifted, and the fluid is not required to be stored.

In this embodiment, a stop block is disposed at the lower end of the lower slide rail 52, and the stop block can limit the sliding block 53 on the lower slide rail 52 to move downward. During the laying process, when the slider 53 slides along the upper slide rail 51 to a set position on the lower slide rail 52, the slider 53 cooperates with a stopper, which restricts the slider 53 from continuing to slide, so that the slider 53 stops at the position.

As shown in fig. 2, in this embodiment, the reel 6 is mounted on the deck, the lifting tube 2 is a hose, that is, the lifting tube 2 is a hose, and in the state of storing the system, the lifting tube 2 formed by the hose is wound around the reel 6, so that the space is not excessively occupied. When the lifting tube is arranged, the winding drum 6 can be rotated to quickly release the lifting tube 2, and the operation is simple and quick. In addition, the riser 2 in this embodiment adopts the hose for riser 2 can have great benign deformation space, like this, in hull 3 removal in-process, in order to overcome the resistance of sea water, riser 2 can produce certain benign bending deformation, avoids adopting the easy cracked condition of rigid riser 2, guarantees that this extraction system still can normal use.

As shown in fig. 8, in this embodiment, the lift pump 1 is installed in the cabin of the hull 3, and an interface is provided on the side wall of the hull 3, the pump inlet of the lift pump 1 is connected to the interface, and when the communicating pipe 54 slides down along the lower slide rail 52 along the slide block 53 to a set position during the laying process, that is, when the slide block 53 is matched with the stop block, one end of the communicating pipe 54 just realizes connection with the interface, and at this time, the lift pump 1 is also connected to the lift pipe 2 through the communicating pipe 54, so that fluid extraction operation can be performed. In this embodiment, the lift pump 1 is installed in the cabin, and the lift pump 1 does not need to adopt an underwater pump or the like with higher cost, so that the cost of the part is greatly reduced, and the cost of maintaining the lift pump 1 in normal use is reduced. Specifically, in this embodiment, the pump inlet of the lift pump 1 is connected to the port through the cabin inner pipe 55, and the cabin inner pipe 55 is provided with the isolation valve 56. After the communication pipe 54 slides along the slider 53 to the position where it communicates with the port, the isolation valve 56 is opened, and the lift pump 1 is started, so that fluid extraction operation can be performed. When fluid is not required to be extracted, the lift pump 1 is stopped, the isolation valve 56 is closed, and the communicating pipe 54 slides upward along with the slider 53.

As shown in fig. 5, 7 and 8, the communication pipe 54 in this embodiment includes a bend 541 attached to the slider 53, one end of the bend 541 is connected to the pump inlet of the lift pump 1, and the other end of the bend 541 is connected to the upper end of the lift pipe 2. Specifically, the communication pipe 54 further includes a communication main 542, and the other end of the elbow 541 communicates with the upper end of the riser 2 through the communication main 542. In this embodiment, the main communication pipe 542 is also a hose. In addition, the elbow 541 is movably connected with the slider 53, the elbow 541 can rotate relative to the slider 53, flexibility of a joint between the elbow 541 and the slider 53 is improved, and because the elbow 541 can rotate freely relative to the slider 53, a large interaction force among the elbow 541, the communication main pipe 542 and the riser 2 is avoided, and breakage and the like at the joint among the elbow 541, the communication main pipe 542 and the riser 2 are prevented.

As shown in fig. 7 and 8, in this embodiment, the lower end of the hanger 4 is movably connected to a first bracket 31 mounted on the deck, the upper end of the hanger 4 is movably connected to one end of a telescopic driving arm 32, and the other end of the telescopic driving arm 32 is movably connected to a second bracket 33 mounted on the deck. The telescopic driving arm 32 can be a hydraulic cylinder. When the telescopic driving arm 32 is deployed, the telescopic driving arm 32 stretches to drive the hanging bracket 4 to incline towards the outer side edge of the ship body 3 and drive the upper section sliding rail 51 to move towards the side edge of the ship body 3 until the upper section sliding rail 51 is in butt joint with the lower section sliding rail 52.

In addition, when the slider 53 slides to the stopper, the communication pipe 54 corresponds to the interface, and the air-tire sealing unit between the slider 53 and the interface is inflated to achieve sealing thereat. The interface is in particular located on an outer plate of the hull 3.

The ocean fluid extraction system and the ocean fluid extraction method in the embodiment can be applied to the technical field of marine engineering. The ocean fluid in this embodiment is primarily sea water. In other embodiments the ocean fluid may also be sediment or the like. The ocean fluid extraction system and the extraction method in the embodiment can be used for extracting seawater at a large depth, the extracted water body can meet the corresponding water requirement of the ship body 3, fish and the like in the extracted seawater can be separated, and the large-depth marine fish can be caught and the like.

The ocean fluid extraction system in the embodiment can operate when the ship body 3 moves, can extract deeper sea water, has larger flow of the extracted fluid, and is convenient to retract and release when needed. The ocean fluid extraction system in this embodiment also includes a water intake filter, a fishing net 8, a counterweight, a float, and the like. The pipe wall of the water inlet filter is provided with a plurality of small holes, which allows the seawater to enter and prevents sundries in the seawater from entering the pipeline.

In this embodiment, the riser 2 is a hose system, and the riser 2 is formed by connecting multiple sections of hoses through quick connection flanges. In the stored state, the hose line is wound on the reel 6. The winding drum 6 is provided with power, and can recycle and release the hose pipe system, and in the process, the hose pipe system can be recycled and wound or released layer by the hose pipe winding device on the winding drum 6, and the hose pipe system is in a good stress state and a regular winding state. The tube wall of the hose in the embodiment comprises a spiral steel wire, has strong shape-retaining capability and can bear certain negative pressure and vacuum degree in the hose.

The ocean fluid extraction system in the embodiment has four working conditions of storage, arrangement, work and recovery. Meanwhile, the ocean fluid extraction method in the embodiment comprises four steps of storing an ocean fluid extraction system, distributing the ocean fluid extraction system, extracting ocean fluid, and recovering the ocean fluid extraction system.

In the step of the marine fluid extraction system: the hose pipe system is wound and stored on the winding drum 6; the hanging bracket 4 is in a vertical state, a traction mechanism formed by a wire rope winch is used for discharging ropes and dragging the sliding block 53, so that the sliding block 53 and the elbow 541 arranged on the sliding block 53 are positioned at the top of the upper-section sliding rail 51 in the hanging bracket 4; at this time, the sliding block 53 and the elbow 541 arranged on the sliding block 53 are both positioned in the space inside the side outer plate and above the deck, so that the maintenance is convenient; the lower section slide rail 52 vertically arranged on the side outer plate is staggered with the upper section slide rail 51, the upper end of the lower section slide rail 52 is started from the deck plane, the lower end of the lower section slide rail 52 is stopped at a proper position below the design waterline of the ship body 3, and at the moment, the upper section slide rail 51 in the hanger 4 and the lower section slide rail 52 on the outer plate of the ship body 3 are in a non-collinear disengagement state; the lift pump 1 is not started, and the isolation valve 56 between the suction inlet of the lift pump 1 and the outer plate of the hull 3 is closed; one end of the main communicating pipe 542 is connected with the elbow 541, and the other end of the main communicating pipe 542 is fixed on the deck at a position convenient for connection with the hose line on the reel 6; the elbow 541 can rotate around the normal line of the installation plane of the elbow and the sliding block 53, so that the main communicating pipe 542 is in the optimal stress state, and the occurrence of an excessively small bending radius of the hose is avoided, so as to protect the hose.

In the step of arranging the marine fluid lifting system, calculating the length of the lifting pipe 2 required according to the preset water taking depth and the operation navigational speed; determining whether the lower end of the lifting pipe 2 is required to be connected with a fishing net 8, or a water inlet filter or a counterweight or a floating ball according to the requirements of specific application scenes, if the extracted fluid is mainly used for supplying corresponding water requirements in the ship body 3, the water inlet filter is arranged at the lower end of the lifting pipe 2; if the extracting fluid is mainly used for capturing marine organisms, a capturing net 8 can be arranged at the lower end of the lifting pipe 2, after the water inlet filter and other parts are arranged, the winding drum 6 is slowly rotated to release the lifting pipe 2 formed by the hose pipe system, if the capturing net 8 is arranged at the lower end of the hose pipe system, a trawl wire rope winch is also required to be rotated to synchronously release the trawl wire rope 81 and the capturing net 8 until the length of the released hose pipe system reaches the calculated length, and the corresponding quick flange in the hose pipe system is determined to be disconnected; the quick flange is disconnected firstly, then the upper end of the released hose pipe system is connected with the lower end of the communicating main pipe 542 on the elbow 541 through the quick flange, and the released hose pipe system is the lifting pipe 2; the hydraulic cylinder stretches to drive the hanger 4 to change from a vertical state to an outward inclined state, and simultaneously, the upper-section sliding rail 51 in the hanger 4 and the lower-section sliding rail 52 vertically arranged on the side outer plate automatically complete butt joint; the wire rope winch at the top of the hanger 4 releases the wire rope, so that the sliding block 53 moves downwards along the upper section sliding rail 51 in the hanger 4 with the elbow 541 and the communicating main pipe 542, enters the lower section sliding rail 52 vertically arranged on the side outer plate, then continues to move downwards, and finally reaches the lower end of the lower section sliding rail 52, namely reaches the working position; at this time, the sliding block 53 reaches the stop block at the bottom of the lower-section sliding rail 52, the stop block formed by the wedge-shaped blocks can fix the sliding block 53 with a certain pretightening force, the sliding block 53 is limited to slide, and at this time, the horizontal outlet of the elbow 541 is matched with the interface on the outer plate of the hull 3, and the pneumatic tire sealing unit between the sliding block 53 and the opening of the outer plate of the hull 3 is inflated to form a seal.

In the marine fluid extraction step: the fishing net 8 or the water inlet filter is positioned at a designated water taking depth, the lifting pump 1 is started, seawater or seawater with a fishing object passes through the water inlet filter or the fishing net 8 and then enters a hose pipe system, the seawater enters the communicating pipe 54 and the lifting pump 1 from the upper end of the lifting pipe 2, and the seawater is pressurized by the lifting pump 1 and then is pumped out through the pump to be conveyed to a user needing to use the seawater on the ship body 3; at this time, the gravity load and the drag load after the buoyancy is subtracted from the lifting pipe 2, the communicating main pipe 542 and the elbow 541 are transmitted to the lower-stage slide rail 52 through the slide block 53; the elbow 541 is used for bearing tension and rotating along with the direction of the main communicating pipe 542, so as to avoid the occurrence of too small bending radius of the hose and protect the hose; the crewman can choose proper navigational speed according to the installation condition of the water intake filter, or the fishing net 8, or the counterweight or the floating ball so as to adjust the water intake depth or the fishing depth; when the fishing net 8 is installed at the lower end of the lifting pipe 2, the fishing net 8 is additionally towed by a trawl wire rope 81, and a shipman can adjust the length and the navigational speed of the trawl wire rope 81 so as to adjust the fishing depth. In order to feed back the current depth information of fishing or water taking in real time, a depth sensor can be arranged on the fishing net 8 or the water inlet filter, and the current depth information of fishing or water taking can be fed back in real time by utilizing the depth sensor.

In the recovery marine fluid extraction system step: firstly, the lifting pump 1 is turned off to stop extracting seawater or fishing; pulling the preset rope tied at the connection point between the lower end of the communicating main pipe 542 and the upper end of the lifting pipe 2, and if the fishing net 8 is installed at the lower end of the lifting pipe 2, starting a trawl wire rope winch to synchronously shorten the trawl wire rope 81; moving the connection point between the upper end of the riser 2 and the lower end of the communicating main pipe 542 to the deck, after the riser 2 is pulled and fixed, disconnecting the quick flange between the riser 2 and the communicating main pipe 542, connecting the upper end of the riser 2 and the rest hose on the winding drum 6 through the quick flange, and fixing the lower end of the communicating main pipe 542 to the deck; the winding drum 6 is rotated to slowly recover the lifting pipe 2, if the fishing net 8 is arranged at the lower end of the lifting pipe 2, a trawl wire rope winch is required to be rotated, the trawl wire rope 81 is recovered synchronously until the lifting pipe 2 is completely recovered, and if the fishing net 8 is arranged at the lower end of the lifting pipe 2, the fishing net 8 is required to be recovered; starting a steel wire rope winch at the top of the hanging frame 4, and recovering the steel wire rope to enable the sliding block 53 to move upwards along the sliding rail along with the elbow 541 to reach the top of the upper section sliding rail 51 in the hanging frame 4; the hydraulic cylinder contracts to drive the hanging frame 4 to change from an inclined state to a vertical state, so that the sliding block 53 moves from outside the side to a space inside the side and above the deck along with the elbow 541; the recovery operation is completed so far, and the marine fluid extraction system is restored to the storage state.

In this embodiment, the communicating main pipe 542 on the elbow 541 can be connected with the hose on the reel 6, and the seawater channel construction mode of the multi-section hose is adopted, so that the depth of the sucked seawater can reach more than 200m-300m, and the requirement of deep sea clean water or low temperature water extraction with large depth can be met. In the existing seawater extraction solution, the water intake depth of a sea bottom door type seawater extraction system is strictly limited by the draft of a ship or a marine structure, and large-depth water intake cannot be realized; the conventional hose winch type seawater extraction system is limited by the strength of a hose, the size and the load of a winch, and the water taking depth cannot be too large; the independent or leg-mounted tower type seawater extraction system is limited by the height of the seawater lifting tower, the water taking depth cannot be too large, because the seawater lifting tower cannot be erected on the main deck after recovery is too high, on the one hand, the rigidity of the seawater lifting tower is limited, the height is too large to generate large deflection, so that the seawater lifting tower cannot be erected straightly, and on the other hand, the stability of the platform, namely the ship body 3, is not good due to the fact that the seawater lifting tower is erected too high.

In this embodiment, the main communicating pipe 542 on the elbow 541 and the riser 2 as the extension pipe are made of hose materials, so that the severe stress state of the rigid truss necessary for realizing deep water intake in the existing seawater extraction solution is avoided, and continuous water intake can be performed while the ship sails or the ocean engineering structure moves, and continuous water intake requirements of offshore production can be met. Meanwhile, the set water intake depth can be flexibly adjusted and maintained by combining measures such as floating ball, counterweight and navigational speed adjustment.

According to the ocean fluid extraction system, the use of an underwater pump is avoided, so that the lifting pump 1 does not have the high technical requirements on the underwater pump, a high-power underwater motor of the underwater pump, an underwater cable and the like and high cost caused by the increase of the water intake depth on the premise of realizing large-depth water intake, the working condition of the lifting pump 1 is objectively improved, the use of an underwater power cable or an underwater power hydraulic oil pipe is canceled, and the cost of the lifting pump 1 is reduced.

In this embodiment, the design that the lift pump 1 is located in the cabin can very conveniently realize redundant configuration of the pump, and when the lift pump 1 fails, the standby pump can be started and put into use quickly in a very short time. If the underwater pump is adopted, the weight of the underwater pump and the matched motor is large, the redundant configuration is selected to multiply the lifting load and the purchasing cost of the seawater lifting device, and the redundant configuration is not generally used. Thus, the operation of the seawater extraction system can only be interrupted after a failure of the subsea pump, and the subsea pump is moved to the deck for service, which can have a fatal effect on the fishing system or downstream production processes requiring a continuous supply of seawater. In addition, the protection level of the underwater pump and the underwater motor is high, the skill level of the crewman required for overhauling and maintenance is higher, and the time and the labor are wasted compared with the pump in the cabin.

In this embodiment, the tiltable hanger 4 is used to mount the slider 53, the elbow 541 and the main communicating pipe 542, so that the slider, the elbow 541 and the main communicating pipe 542 can be completely located on the deck within the side of the ship in the storage state, which is convenient for maintenance and repair, and can avoid influencing the berthing of the ship in the non-working state.

In this embodiment, the tiltable hanger 4 on which the slider 53, the elbow 541 and the main communicating pipe 542 are mounted adopts the design of the slider 53 and the sliding rail, when the hanger 4 tilts to the working position, the upper sliding rail 51 in the hanger 4 and the lower sliding rail 52 on the hull 3 can be automatically aligned under the action of the mechanism, so that one-key arrangement and recovery can be realized, manpower is saved, and efficiency is improved.

In this embodiment, based on the design of the slider 53, the elbow 541, the communication main pipe 542, and the interface provided on the outer plate of the hull 3 and capable of being butted with the elbow 541, the lift pump 1 can be installed at a position as low as possible below the sea surface, so that the positive pressure of the suction inlet of the centrifugal part of the lift pump 1 is ensured, and the effective cavitation allowance is improved.

In this embodiment, the communicating main pipe 542 on the elbow 541 has a flexible characteristic, and the elbow 541 is rotatable, so that the slider 53 and the elbow 541 can flexibly move during the process of laying and recycling. And when the ship is laid, the outlet of the elbow 541 can be connected with the interface of the ship body 3 leading to the suction port of the lifting pump 1 along with the downward movement of the sliding block 53 to the working position, so that the connection and disconnection operations are omitted.

In this embodiment, the elbow 541 is always connected to the main communicating pipe 542, and the lower end of the main communicating pipe 542 is fixed to a position on the deck for easy operation, so that it is easy to connect or disconnect the main communicating pipe with or from the hose on the spool 6, thereby improving efficiency.

In the working state, the lifting pump 1 is positioned in the cabin, so that the motion response of the seawater lifting pump device under the action of ship motion and marine environmental force and the like in the existing seawater extraction solution is avoided, and the working state of the lifting pump 1 and a hose connected with the lifting pump is improved. And in this embodiment, the lift pump 1 is located in the cabin, instead of installing the lift pump 1 at the lowest end of the lift pipe 2 as in the existing seawater extraction solution, so that the stress of the lift pipe 2 is effectively reduced.

According to the embodiment, the length of the hose pipe system to be released can be determined according to the actual water taking depth requirement, when the actual water taking depth is smaller than the designed water taking depth, seawater does not need to pass through the hose with the original designed length, but flows into the ship body 3 through the lifting pipe 2 with the actual length, so that the delay resistance can be reduced proportionally, and the energy consumption of seawater lifting is reduced. In addition, the embodiment adopts the winding drum 6 to store the hose pipe system, reduces the number of connectors which are required to be connected or disconnected during the laying or recycling operation, and shortens the laying and recycling time.

Example two

In the present embodiment, the lift pump 1 installed in the cabin is adjusted to be positioned on the outboard side and under water in addition to the first embodiment. Specifically, as shown in fig. 10 to 12, in the present embodiment, the lift pump 1 is mounted on the slider 53 through the fixing bracket 57, the pump outlet of the lift pump 1 is communicated with one end of the delivery pipe 7, and the other end of the delivery pipe 7 is communicated with the interior of the hull 3. In this embodiment, the communication pipe 54 is attached to the slider 53 via the lift pump 1 and the fixing bracket 57. In the storage state, the lifting pump 1 is hung on the top of the upper section sliding rail 51 along with the sliding block 53, and the lifting pump 1 is positioned right above the deck, so that the lifting pump 1 is convenient to maintain and the like. During the laying process, the lift pump 1 slides down along with the slider 53 to a set position, and at this time, the lift pump 1, the communicating pipe 54, the lift pipe 2, and the like are all located below the deck. When fluid is extracted, the lift pump 1 is started, and the fluid flows to a set position inside the hull 3 through the lift pipe 2, the communication pipe 54, the lift pump 1, and the delivery pipe 7 in this order.

The delivery tube 7 in this embodiment is likewise a hose. The other end of the conveying pipe 7 is communicated with a seawater inlet on the ship body 3. And the pump inlet of the lift pump 1 communicates with the upper end of the communicating pipe 54 through the cross joint 58. The communicating pipe 54 is a hose, and the lower end of the communicating pipe 54 communicates with the riser 2. The cross joint 58 is used to withstand the pulling force and avoid too small a hose bend radius to protect the hose. One end of the communication pipe 54 is connected to a cross joint 58, i.e. to the pump inlet of the lift pump 1, and the other end of the communication pipe 54 is fixed to the hull 3 at a position convenient for connection to the hose line on the reel 6. The hanging bracket 4 has two states of vertical and inclined, and the state switching is realized by the extension and retraction of the hydraulic oil cylinder. Under the storage state, the hanging bracket 4 is in a vertical state, and at the moment, the hanging bracket 4 is pulled by limiting of the sliding rail and rope outlet of the steel wire rope winch, so that the sliding block 53, the fixed support 57 and the lifting pump 1 are all positioned on a deck inside the outboard plate, and the maintenance is convenient.

In this embodiment, the steps of the marine fluid extraction system are as follows: calculating the length of the lifting pipe 2 required according to the preset water taking depth and the operation navigational speed; determining whether the lower end of the lifting pipe 2 is required to be connected with a fishing net 8, a water inlet filter, a counterweight or a floating ball according to the requirements of specific application scenes, slowly rotating a winding drum 6 to release a hose pipe system after the components are installed, and if the fishing net 8 is installed at the lower end of the lifting pipe 2, rotating a trawl wire rope winch to synchronously release a trawl wire rope 81 until the length of the released hose pipe system reaches the calculated length, and determining a quick flange to be disconnected; firstly disconnecting the quick flange, and then connecting the upper end of the released hose pipe system with the lower end of a communicating pipe 54 on the lift pump 1 through the quick flange; the hydraulic cylinder stretches to drive the hanging bracket 4 to change from a vertical state to an inclined state, and meanwhile, an upper-section sliding rail 51 in the hanging bracket 4 and a lower-section sliding rail 52 vertically arranged on the side outer plate automatically complete butt joint; the wire rope winch at the top of the hanger 4 releases the wire rope, so that the slide block 53 moves downwards along the upper slide rail 51 inside the hanger 4 with the fixing bracket 57 and the lift pump 1, enters the lower slide rail 52 vertically installed on the side outer plate, then continues to move downwards, and finally reaches the lower end of the slide rail, namely, reaches the working position.

In the marine fluid extraction step: the fishing net 8 or the water inlet filter is at a designated water intake depth, the lifting pump 1 is started, seawater or seawater with a fishing object enters the lifting pipe 2 through the water inlet filter or the fishing net 8, is sucked into the lifting pump 1 through the communicating pipe 54 and the cross joint 58 and pressurized, is conveyed to a seawater inlet of the ship body 3 through the conveying pipe 7, and finally reaches a seawater user or a designated position in the ship; at this time, the gravity load and the drag load after the buoyancy is subtracted from the riser pipe 2 and the communication pipe 54 are transmitted to the lower slide rail 52 through the cross joint 58, the lift pump 1, the fixing bracket 57 and the slide block 53. The purpose of the cross joint 58 is to withstand the pulling forces and avoid too small a hose bend radius to protect the hose. The crewman can choose proper navigational speed according to the installation condition of the water intake filter, or the fishing net 8, or the counterweight, or the floating ball, so as to adjust the water intake depth or the fishing depth. When the fishing net 8 is installed at the lower end of the lifting pipe 2, the fishing net 8 is additionally pulled by the trawl wire rope 81, and a shipman can adjust the length and the navigational speed of the trawl wire rope 81 so as to adjust the fishing or water taking depth.

In the recovery marine fluid extraction system step: first the lift pump 1 is turned off, the pumping of sea water is stopped, or the fishing is stopped. Pulling a preset rope tied on a connection point between the lower end of the communicating pipe 54 and the upper end of the lifting pipe 2, installing a fishing net 8 at the lower end of the lifting pipe 2, starting a trawl wire rope winch, synchronously shortening the trawl wire rope 81, enabling the connection point between the upper end of the lifting pipe 2 and the lower end of the communicating pipe 54 to move to a deck, after the lifting pipe 2 is pulled and fixed, disconnecting a quick flange between the upper end of the lifting pipe 2 and the lower end of the communicating pipe 54, connecting the quick flange between the upper end of the lifting pipe 2 and the residual hose on the winding drum 6, and fixing the lower end of the communicating pipe 54 on the deck. The winding drum 6 is rotated to slowly recover the lifting pipe 2, if the fishing net 8 is installed at the lower end of the lifting pipe 2, a trawl wire rope winch is required to be rotated, the trawl wire rope 81 is recovered synchronously until the lifting pipe 2 is completely recovered, and the fishing net 8 is installed at the lower end of the lifting pipe 2, and the fishing net 8 is required to be recovered. The wire rope winch at the top of the hanger 4 is started, and the wire rope is recovered to enable the sliding block 53 to move upwards along the sliding rail along with the fixing support 57 and the lifting pump 1 to reach the top of the upper sliding rail 51 in the hanger 4. The hydraulic cylinder shortens, drives the hanger 4 to change from an inclined state to a vertical state, and further enables the sliding block 53 to move from outside the side of the ship to the deck inside the side of the ship together with the fixing bracket 57 and the lifting pump 1. And thus, the recovery operation is completed, and the extraction system is recovered to a recovery state.

In this embodiment, the communicating pipe 54 on the lift pump 1 can be connected with the hose on the reel 6, and the seawater channel construction mode of a plurality of sections of hoses is adopted, so that the depth of the sucked seawater can reach more than 200m-300m, and the requirements of deep sea clean water or low temperature water extraction with large depth can be met. In the existing seawater extraction solution, the water intake depth of a sea bottom door type seawater extraction system is strictly limited by the draft of a ship or a marine structure, and large-depth water intake cannot be realized; the conventional hose winch type seawater extraction system is limited by the strength of a hose, the size and the load of a winch, and the water taking depth cannot be too large; the independent or leg-mounted tower-type seawater extraction system is limited by the height of the seawater lifting tower, the water taking depth cannot be too large, because the seawater lifting tower cannot be erected on the main deck after recovery is too high, on one hand, the seawater lifting tower is limited by the rigidity, the height is too large to generate large deflection, the seawater lifting tower cannot be erected straightly, and on the other hand, the stability of the platform, namely the ship body 3, is not good due to the fact that the seawater lifting tower is erected too high.

In this embodiment, the communicating pipe 54 and the extending pipe thereof on the lift pump 1 are made of hose materials, so that the severe stress state of the rigid truss necessary for realizing deep water intake in the existing seawater extraction solution is avoided, and continuous water intake can be realized while the ship sails or the ocean engineering structure moves, and continuous water intake requirements of offshore production can be met. Meanwhile, the set water intake depth can be flexibly adjusted and maintained by combining measures such as floating ball, counterweight and navigational speed adjustment.

The embodiment is provided with the lifting pump 1 which is positioned at the upper end of the lifting pipe 2 and works underwater, so that the immersion depth of the lifting pump 1 is shallow and the born water pressure is small on the premise of realizing large-depth water taking, the working condition of the lifting pump 1 is objectively improved, the underwater power cable or the underwater power hydraulic oil pipe is shortened, and the cost of the lifting pump 1 is reduced.

The present embodiment adopts the tiltable hanger 4 to mount the lift pump 1, so that the lift pump can be completely located on the deck within the side in the recovery state, thereby facilitating maintenance and repair, and avoiding the influence on ship berthing in the non-working state. And the hanger 4 for mounting the lifting pump 1 adopts a slide block 53 and a slide rail design, when the hanger 4 is inclined to a working position, the upper slide rail 51 in the hanger 4 and the lower slide rail 52 on the ship body 3 can be automatically aligned under the action of a mechanism, so that one-key arrangement and recovery can be realized, the manpower is saved, and the efficiency is improved.

In this embodiment, the slide block 53 and the fixing support 57 can lower the lift pump 1 to a position as low as possible below the sea surface, so as to ensure the normal operation of the centrifugal pump. And the pump outlet and the pump inlet of the lifting pump 1 are connected by adopting a hose, and the flexible of the hose enables the lifting pump 1 to flexibly move in the process of laying and recycling. In addition, the pump outlet of the lift pump 1 is always connected with the seawater inlet on the hull 3 through a hose, so that the operation of connecting and disconnecting the hose is omitted.

In this embodiment, the lift pump 1 is always connected to the communicating pipe 54, and the other end of the communicating pipe 54 is fixed at a position above the deck for easy operation, so that it is easy to connect or disconnect the hose to or from the hose on the spool 6, thereby improving efficiency.

Under the operating condition, the lift pump 1 is rigidly fixed on the ship body 3 through the fixed support 57, the sliding block 53 and the sliding rail, so that the motion response of the lift pump 1 such as sloshing under the action of ship motion and marine environmental force in the existing seawater extraction solution is avoided, and the operating condition of the lift pump 1 and a hose connected with the lift pump 1 is improved.

In this embodiment, the lift pump 1 is rigidly fixed on the hull 3 through the fixing support 57, the sliding block 53 and the sliding rail, instead of installing the lift pump 1 at the lowest end of the lift pipe 2 as in the existing seawater extraction solution, so that the stress condition of the lift pipe 2 is effectively reduced.

According to the embodiment, the quantity of the water taking hoses to be released can be determined according to the actual water taking depth requirement, and when the actual water taking depth is smaller than the designed water taking depth, the delay resistance can be reduced proportionally, and the energy consumption for lifting the seawater is reduced. The embodiment adopts the hose collecting and storing pipe system of the winding drum 6, reduces the number of joints which need to be connected or disconnected during the operation of distributing and recovering, and shortens the distributing and recovering time.

The lift pump 1 in this embodiment adopts an outboard underwater pump rather than an in-cabin pump, and can be installed at a position lower than the ship itself and deeper below the water surface, so that the lift pump 1 obtains better running conditions and effective cavitation margin, and can accept larger suction resistance, that is, larger flow, higher flow rate and smaller pipe diameter.

In summary, the present invention effectively overcomes the disadvantages of the prior art and has high industrial utility value.

The above embodiments are merely illustrative of the principles of the present invention and its effectiveness, and are not intended to limit the invention. Modifications and variations may be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the invention. Accordingly, it is intended that all equivalent modifications and variations of the invention be covered by the claims, which are within the ordinary skill of the art, be within the spirit and scope of the present disclosure.

Claims (10)

1. The utility model provides a marine fluid draws system, its characterized in that includes elevator pump (1), riser (2) that extend along upper and lower direction, install gallows (4) on the deck of hull (3), install upper segment slide rail (51) on gallows (4), install lower segment slide rail (52) on the lateral wall of hull (3), with lower segment slide rail (52) matched with slider (53), and install communicating pipe (54) on slider (53), the pump entry of elevator pump (1) is linked together with one end of communicating pipe (54), the other end of communicating pipe (54) is connected with the upper end of riser (2) can be dismantled, the lower extreme of riser (2) stretches into in the ocean, the lower extreme of upper segment slide rail (51) is docked with the upper end of lower segment slide rail (52), just be equipped with traction mechanism on gallows (4), traction mechanism is connected with slider (53), the inclination of gallows (4) can change.

2. Marine fluid extraction system according to claim 1, wherein the lower end of the lower slide rail (52) is provided with a stop block which can limit the downward movement of a slider (53) on the lower slide rail (52).

3. Marine fluid extraction system according to claim 1, characterized in that a reel (6) is mounted on the deck, the riser (2) being a extraction hose, the reel (6) being adapted to reel in the extraction hose.

4. Marine fluid extraction system according to claim 1, wherein the lift pump (1) is mounted in a cabin of the hull (3), and an interface is provided on a side wall of the hull (3), a pump inlet of the lift pump (1) is in communication with the interface, and one end of the communication pipe (54) is in communication with the interface.

5. Marine fluid extraction system according to claim 4, characterized in that the pump inlet of the lift pump (1) is connected to the interface via an intra-cabin pipe (55), and that an isolation valve (56) is mounted on the intra-cabin pipe (55).

6. Marine fluid extraction system according to claim 1, wherein the communication pipe (54) comprises an elbow (541) mounted on a slider (53), one end of the elbow (541) being in communication with the pump inlet of the lift pump (1), the other end of the elbow (541) being in communication with the upper end of the lift pipe (2).

7. Marine fluid extraction system according to claim 6, characterized in that the elbow (541) is movably connected to the slider (53), the elbow (541) being rotatable relative to the slider (53).

8. Marine fluid extraction system according to claim 1, characterized in that the lift pump (1) is mounted on a slide (53) by means of a fixed bracket (57), the pump outlet of the lift pump (1) being in communication with one end of a transfer pipe (7), the other end of the transfer pipe (7) being in communication with the interior of the hull (3).

9. Marine fluid extraction system according to claim 1, characterized in that the lower end of the hanger (4) is movably connected to a first support (31) mounted on the deck, the upper end of the hanger (4) is movably connected to one end of a telescopic driving arm (32), and the other end of the telescopic driving arm (32) is movably connected to a second support (33) mounted on the deck.

10. A marine fluid extraction method employing the marine fluid extraction system of claim 1, comprising the steps of:

a storage ocean fluid extraction system: the lifting pipe (2) is stored on a deck of the ship body (3), the lifting pipe (2) is disconnected with the communicating pipe (54), the sliding block (53) and the communicating pipe (54) stay on the upper section sliding rail (51) under the traction action of the traction mechanism, the upper section sliding rail (51) is staggered with the lower section sliding rail (52), and the sliding block (53) and the communicating pipe (54) are positioned right above the deck;

Deploying a marine fluid extraction system: the lower end of the lifting pipe (2) stretches into the ocean to a set depth, the upper end of the lifting pipe (2) is connected with a communicating pipe (54) on a deck, a hanging bracket (4) inclines to the side edge of a ship body (3) and drives an upper section sliding rail (51) to move to the side edge of the ship body (3), the upper section sliding rail (51) is in butt joint with a lower section sliding rail (52), a traction mechanism releases a sliding block (53), the sliding block (53) and the communicating pipe (54) slide downwards along the upper section sliding rail (51) and the lower section sliding rail (52) until the sliding block (53) slides to a set position on the lower section sliding rail (52), at the moment, a lifting pump (1) is positioned at a set position below the deck, and a pump inlet of the lifting pump (1) is communicated with the lifting pipe (2) through the communicating pipe (54);

extracting marine fluid: the lifting pump (1) is started, marine fluid enters the lower end of the lifting pipe (2), flows upwards into the communicating pipe (54) through the lifting pipe (2), and flows to a set position in the ship body (3) through the communicating pipe (54) and the lifting pump (1).