CN114590382A - High-pressure water replacement device for assisting deep sea connection and disconnection and use method - Google Patents
High-pressure water replacement device for assisting deep sea connection and disconnection and use method Download PDFInfo
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- CN114590382A CN114590382A CN202210263341.2A CN202210263341A CN114590382A CN 114590382 A CN114590382 A CN 114590382A CN 202210263341 A CN202210263341 A CN 202210263341A CN 114590382 A CN114590382 A CN 114590382A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63G—OFFENSIVE OR DEFENSIVE ARRANGEMENTS ON VESSELS; MINE-LAYING; MINE-SWEEPING; SUBMARINES; AIRCRAFT CARRIERS
- B63G8/00—Underwater vessels, e.g. submarines; Equipment specially adapted therefor
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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Abstract
The invention relates to a high-pressure water replacing device for assisting deep sea connection and disconnection and a using method thereof, comprising a pressure-resistant box body, wherein a first box body piston and a second box body piston are arranged in the pressure-resistant box body in parallel, the interior of the pressure-resistant box body is divided into a seawater cavity, an oil cavity and an air cavity by a first box body piston and a second box body piston, the seawater cavity is communicated with the transition cabin through a water injection and drainage pipe, hydraulic oil is normally injected into the oil cavity and moves along with the first box body piston and the second box body piston, a horizontal telescopic oil cylinder is arranged in the air cavity, two ends of the telescopic oil cylinder are respectively hinged with the inner end wall of the pressure-resistant box body and the end surface of the first box body piston, the upper end and the lower end of the telescopic oil cylinder are respectively provided with a telescopic support rod, the upper inner wall surface and the lower inner wall surface of the pressure-resistant box body are respectively and correspondingly fixed with a bolt oil cylinder, and the output end of the bolt oil cylinder corresponds to the through hole of the telescopic supporting rod, so that the work is reliable.
Description
Technical Field
The invention relates to the technical field of auxiliary devices for underwater connection and disconnection, in particular to a high-pressure water replacement device for assisting deep sea connection and disconnection and a using method thereof.
Background
The deep sea manned platform can carry the shuttle carrier, so that personnel can drive the shuttle carrier to execute observation and operation tasks when the manned platform sits at the bottom, when the shuttle carrier is in carrying butt joint with the deep sea manned platform, a transition cabin can be formed between an upper enclosing well and a lower enclosing well, normal pressure air is in the transition cabin under the normal carrying butt joint working condition, and before release, high-pressure seawater is generally injected to realize the consistency of the pressure in the transition cabin and the pressure of outside seawater so as to smoothly release the shuttle carrier platform; after the shuttle carrier finishes an operation task and is in butt joint with a manned platform underwater, the transition cabin is filled with high-pressure seawater, the seawater in the transition cabin needs to be decompressed and emptied to meet the condition that people enter and exit, the traditional method for decompressing and draining is to use a water pump to discharge the seawater into the shuttle carrier, but as the releasing and connecting times are increased, more and more seawater can be accumulated in the shuttle carrier, so that the large burden is caused on the internal volume and the maneuvering performance of the shuttle carrier, and the times of releasing and connecting the shuttle carrier with the manned platform are limited by the volume and the load capacity of the shuttle carrier.
Disclosure of Invention
The applicant aims at the defects in the prior art and provides a high-pressure water replacing device for assisting deep sea connection and disconnection and a using method thereof, so that the device can be used for repeatedly filling and emptying high-pressure water for a transition cabin of a shuttle carrier and a manned platform, and after the shuttle carrier finishes unlimited times of disconnection and connection tasks, no extra seawater backlog can be caused.
The technical scheme adopted by the invention is as follows:
the utility model provides a supplementary deep sea is connected and high pressure water substitution device who takes off, including withstand voltage box, withstand voltage box inside parallel mount has a box piston and No. two box pistons, through a box piston and No. two box pistons with withstand voltage box inside fall into sea water chamber, oil pocket and air chamber, the sea water chamber is through annotating drain pipe and cockpit intercommunication, often annotate liquid in the oil pocket and press oil and remove along with a box piston and No. two box pistons together, install horizontally flexible hydro-cylinder in the air chamber, the both ends of flexible hydro-cylinder are articulated with the interior end wall of withstand voltage box and a box piston terminal surface respectively, flexible bracing piece is installed respectively to the upper and lower end of flexible hydro-cylinder, correspond respectively on the upper and lower internal face of withstand voltage box and be fixed with the bolt hydro-cylinder, the output of bolt hydro-cylinder corresponds with the through-hole of flexible bracing piece.
The further technical scheme is as follows:
the pressure-resistant box body is of a cylindrical structure.
And an electric valve is arranged at the tail end of the water injection and drainage pipe.
A plurality of parallel spaced blocking rods are arranged between the first box piston and the second box piston, one end of each blocking rod is welded and fixed with the first box piston, the other end of each blocking rod is in contact constraint with the second box piston, and thrust between the pistons is transmitted and the volume of an oil cavity is kept unchanged.
The telescopic supporting rod comprises a sleeve and a round rod, the round rod is in telescopic motion in the sleeve, the end of the sleeve is fixed to the inner end wall of the pressure-resistant box, the end of the round rod is fixed to the end face of a box piston in a welded mode, a through hole and a through hole are formed in the sleeve and the round rod respectively, and the diameter of a cylindrical bolt at the output end of the bolt oil cylinder is the same as the diameter of the through hole and the diameter of the through hole.
And the bolt oil cylinder is provided with a bolt oil cylinder oil inlet and a bolt oil cylinder oil outlet.
And the telescopic oil cylinder is provided with a telescopic oil cylinder oil inlet and a telescopic oil cylinder oil outlet.
And a tank oil inlet and a tank oil outlet are formed in the pressure-resistant tank body.
The use method of the high-pressure water replacement device for assisting the connection and disconnection of the deep sea comprises the following five stages:
a standby state, a water injection process, a pressurization process, a pressure relief process and a drainage process,
a standby state: the shuttle carrier is connected with the deep sea manned platform in a carrying mode, the transition cabin is a normal-pressure cavity, the electric valve and all oil inlet and outlet ports are in a closed state, the seawater cavity is filled with normal-pressure seawater, and the oil cavity is filled with normal-pressure hydraulic oil;
and (3) water injection process: the electric valve is opened, medium-low pressure hydraulic oil is injected into the telescopic oil cylinder, the first box piston, the oil cavity and the second box piston are pushed to integrally move leftwards, normal-pressure seawater is injected into the transition cabin, when the transition cabin is just filled with seawater, the axle centers of the first through hole and the second through hole of the telescopic supporting rod are superposed, and the box oil inlet and the box oil outlet are just communicated with the oil cavity;
and (3) pressurizing process: firstly, injecting medium-low pressure oil into an oil inlet of a bolt oil cylinder, returning oil from an oil outlet 1002 of the bolt oil cylinder, enabling a cylindrical bolt to extend into a first through hole and a second through hole, limiting the movement of a telescopic supporting rod, then injecting high-pressure oil into an oil inlet of a box body, closing the oil inlet of the box body after the oil pressure in the oil cavity is consistent with the external seawater pressure, at the moment, the seawater pressure in a transition cabin is the same as the external seawater pressure, easily separating an upper enclosure trap from a lower enclosure trap, and completing the assistance of the high-pressure water replacement device in the process of releasing the shuttle carrier;
after the shuttle carrier finishes an operation task, is in butt joint with the deep sea manned platform and is sealed, the high-pressure water replacing device starts the pressure relief process: opening an oil outlet of the box body, changing hydraulic oil in the oil cavity into normal pressure, pushing a piston of the second box body to move rightwards by high-pressure seawater in the transition cabin until the piston is contacted with a stop lever, and changing the seawater in the transition cabin into normal pressure;
and (3) a drainage process: closing an oil inlet of the box body, enabling the bolt oil cylinder to work to enable the cylindrical bolt to be separated from the first through hole and the second through hole, enabling the telescopic oil cylinder to work, enabling the telescopic oil cylinder to do contraction movement to drive the first box piston and the second box piston to synchronously move rightwards, meanwhile, discharging seawater in the transition cabin into a seawater cavity with gradually increased volume until the first box piston and the second box piston return, then closing the electric valve, and at the moment, completely discharging the seawater in the transition cabin;
the high-pressure water replacing device injects and discharges high-pressure water to the transition cabin for unlimited times, and the shuttle carrier is assisted to realize repeated release and connection with the deep sea manned platform under the advantage of not absorbing or accumulating any external redundant seawater.
The invention has the following beneficial effects:
the invention has compact and reasonable structure and convenient operation, can conveniently complete the filling and emptying of high-pressure water in the transition cabin of the shuttle carrier and the manned platform through the mutual matching work of all the parts, can not cause any extra seawater backlog after the auxiliary shuttle carrier finishes unlimited times of releasing and connecting tasks, and has good working reliability.
Meanwhile, the invention also has the following advantages:
(1) the high-pressure water replacing device can realize the injection and discharge of high-pressure water to the transition cabin for unlimited times under the advantage of not absorbing or accumulating any external redundant seawater, and the shuttle carrier is assisted to realize the repeated release and connection with the deep-sea manned platform.
(2) The high-pressure water replacing device can effectively reduce the oil consumption and energy consumption of hydraulic oil, firstly, the stroke of a piston of the box body is realized by the built-in telescopic oil cylinder instead of being driven by the hydraulic oil with equal drainage volume, and the oil consumption is obviously reduced; and in the water injection and drainage processes, the load of the box body piston, the telescopic oil cylinder and the bolt oil cylinder is small, the box body piston, the telescopic oil cylinder and the bolt oil cylinder can be driven only by medium and low pressure oil, and in the pressurization process, high pressure oil with equal seawater compression amount is only required to be provided, so that the high pressure oil is less in demand, and the energy consumption is effectively reduced.
Drawings
FIG. 1 is a schematic view of the high pressure water substitution device of the present invention.
Fig. 2 is a schematic diagram of the standby (or drainage completed) state of the high-pressure water replacement device of the present invention.
FIG. 3 is a schematic view showing a state where water is completely injected (or pressure is completely released) in the high pressure water replacement device of the present invention.
Fig. 4 is a schematic view of the pressurized water replacement device according to the present invention in a state of complete pressurization (or waiting for pressure release).
FIG. 5 is a schematic diagram of the pressure accumulation state and the shuttle releasing state of the high pressure water replacement device according to the present invention.
Wherein: 1. a shuttle vehicle; 2. a deep sea manned platform; 3. a transition cabin; 4. a pressure-resistant box body; 5. a seawater cavity; 6. an oil chamber; 7. an air chamber; 8. a telescopic oil cylinder; 9. a telescopic support rod; 10. a bolt oil cylinder; 11. a first case piston; 12. a gear lever; 13. a second case piston; 14. water injection and drainage pipes; 15. an electric valve.
101. An upper hatch cover; 102. an upper enclosure well;
201. a lower hatch cover; 202. a lower trap;
401. an oil inlet of the box body; 402. an oil outlet of the tank body;
801. an oil inlet of the telescopic oil cylinder; 802. an oil outlet of the telescopic oil cylinder;
901. a sleeve; 902. a round bar; 903. a first through hole; 904. a second through hole;
1001. an oil inlet of the bolt oil cylinder; 1002. an oil outlet of the bolt oil cylinder.
Detailed Description
The following describes embodiments of the present invention with reference to the drawings.
As shown in fig. 1-5, the high pressure water replacing device for assisting deep sea connection and disconnection of the present embodiment comprises a pressure-resistant box 4, a first box piston 11 and a second box piston 13 are installed in parallel inside the pressure-resistant box 4, the inside of the pressure-resistant box 4 is divided into a seawater cavity 5, an oil cavity 6 and an air cavity 7 by the first box piston 11 and the second box piston 13, the seawater cavity 5 is communicated with a transition cabin 3 by a water injection and drainage pipe 14, normally-pressed oil and liquid are injected into the oil cavity 6 and move together with the first box piston 11 and the second box piston 13, a horizontal telescopic cylinder 8 is installed inside the air cavity 7, two ends of the telescopic cylinder 8 are respectively hinged with the inner end wall of the pressure-resistant box 4 and the end face of the first box piston 11, telescopic support rods 9 are respectively installed at the upper and lower ends of the telescopic cylinder 8, and bolt cylinders 10 are respectively and correspondingly fixed on the upper and lower inner wall faces of the pressure-resistant box 4, the output end of the bolt oil cylinder 10 corresponds to the through hole of the telescopic supporting rod 9.
The pressure-resistant box body 4 is of a cylindrical structure.
An electric valve 15 is arranged at the tail end of the water filling and draining pipe 14.
A plurality of parallel and spaced baffle rods 12 are arranged between the first box piston 11 and the second box piston 13, one end of each baffle rod 12 is fixedly welded with the first box piston 11, the other end of each baffle rod is in contact constraint with the second box piston 13, thrust between the pistons is transmitted, and the volume of the oil cavity 6 is kept unchanged.
The telescopic supporting rod 9 comprises a sleeve 901 and a round rod 902, the round rod 902 performs telescopic motion in the sleeve 901, the end part of the sleeve 901 is fixed on the inner end wall of the pressure-resistant box body 4, the end part of the round rod 902 is welded and fixed with the end surface of a box body piston 11, the sleeve 901 and the round rod 902 are respectively provided with a through hole 903 and a through hole 904, and the diameter of a cylindrical bolt at the output end of the bolt oil cylinder 10 is the same as the aperture of the through hole 903 and the aperture of the through hole 904.
The bolt oil cylinder 10 is provided with a bolt oil cylinder oil inlet 1001 and a bolt oil cylinder oil outlet 1002.
The telescopic oil cylinder 8 is provided with a telescopic oil cylinder oil inlet 801 and a telescopic oil cylinder oil outlet 802.
A tank oil inlet 401 and a tank oil outlet 402 are arranged on the pressure-resistant tank 4.
The application method of the high-pressure water replacing device for assisting the deep sea connection and disconnection comprises the following five stages:
a standby state, a water injection process, a pressurization process, a pressure relief process and a drainage process,
a standby state: the shuttle carrier 1 is connected with a deep sea manned platform 2 in a carrying way, the transition cabin 3 is a normal pressure cavity, the electric valve 15 and all oil inlets and oil outlets are in a closed state, the sea water cavity 5 is filled with normal pressure sea water, and the oil cavity 6 is filled with normal pressure hydraulic oil;
and (3) water injection process: the electric valve 15 is opened, medium-low pressure hydraulic oil is injected into the telescopic oil cylinder 8, the first box piston 11, the oil cavity 6 and the second box piston 13 are pushed to integrally move leftwards, normal-pressure seawater is injected into the transition cabin 3, when the transition cabin 3 is just filled with seawater, the axle centers of the first through hole 903 and the second through hole 904 of the telescopic supporting rod 9 are superposed, and the box oil inlet 401 and the box oil outlet 402 are just communicated with the oil cavity 6;
and (3) pressurizing process: firstly, injecting medium-low pressure oil into an oil inlet 1001 of a bolt oil cylinder, returning oil from an oil outlet 1002 of the bolt oil cylinder, enabling a cylindrical bolt to extend into a first through hole 903 and a second through hole 904 to limit the movement of a telescopic supporting rod 9, then injecting high-pressure oil into an oil inlet 401 of a box body, closing the oil inlet 401 of the box body after the oil pressure in an oil cavity 6 is consistent with the external seawater pressure, at the moment, the seawater pressure in a transition cabin 3 is the same as the external seawater pressure, and easily separating an upper enclosure trap 102 from a lower enclosure trap 202 until the high-pressure oil replacing device finishes the releasing assistance of the shuttle penetrating carrier 1;
after the shuttle carrier 1 completes the operation task and is in butt joint with the deep sea manned platform 2 and the sealing is finished, the high-pressure water replacing device starts the pressure relief process: opening an oil outlet 402 of the box body, changing hydraulic oil in the oil cavity 6 to be normal pressure, pushing a piston 13 of the second box body to move rightwards by high-pressure seawater in the transition cabin 3 until the high-pressure seawater is contacted with a stop lever 12, and changing the seawater in the transition cabin 3 to be normal pressure;
and (3) a drainage process: closing a box body oil inlet 401, enabling a bolt oil cylinder 10 to work, enabling a cylindrical bolt to be separated from a first through hole 903 and a second through hole 904, enabling a telescopic oil cylinder 8 to work, enabling the telescopic oil cylinder 8 to do contraction motion to drive a first box body piston 11 and a second box body piston 13 to synchronously move rightwards, simultaneously discharging seawater in a transition cabin 3 into a seawater cavity 5 with gradually increased volume until the first box body piston 11 and the second box body piston 13 return, then closing an electric valve 15, and at the moment, completely discharging the seawater in the transition cabin 3;
by repeating the above steps, the high-pressure water replacing device injects and discharges high-pressure water to the transition cabin 3 for unlimited times, and the shuttle carrier 1 is assisted to realize repeated release and connection with the deep sea manned platform 2 under the advantage of not absorbing or accumulating any external redundant seawater.
The invention relates to a high-pressure water replacing device for auxiliary connection and disconnection, which is invented on the basis of a deep sea connection and disconnection device body, wherein:
the connecting and disconnecting device body includes: shuttle carrier 1, upper hatch 101, upper purse 102, deep sea manned platform 2, lower hatch 201, lower purse 202, transition cabin 3.
The high-pressure water replacing device mainly comprises: the device comprises a pressure-resistant box body 4, a seawater cavity 5 in the box body, an oil cavity 6, an air cavity 7, a telescopic oil cylinder 8, a telescopic supporting rod 9, a bolt oil cylinder 10, a first box piston 11, a second box piston 13, a piston intermediate blocking rod 12, a water injection and drainage pipe 14, an electric valve 15, a box oil inlet 401, a box oil outlet 402, a sleeve 901 of the telescopic supporting rod 9 and a round rod 902.
The pressure-resistant box body 4 of the high-pressure water replacing device is divided into three cavities, namely a seawater cavity 5, an oil cavity 6 and an air cavity 7 by a first box body piston 11 and a second box body piston 13, wherein the seawater cavity 5 is communicated with the transition cabin 3 through a water injection and drainage pipe 14, and the tail end of the water injection and drainage pipe 14 is provided with an electric valve 15 which can control the opening and closing of the water injection and drainage pipe 14. The oil cavity 6 is normally filled with hydraulic oil and can move along with the first case piston 11 and the second case piston 13, when the oil cavity 6 moves to the position shown in the figure 3, the oil cavity 6 is communicated with a case oil inlet 401 and a case oil outlet 402 which are arranged on the pressure-resistant case 4, and the pressure in the oil cavity 6 can be controlled by filling and discharging the hydraulic oil; a stop lever 12 is arranged between the first box piston 11 and the second box piston 13, one end of the stop lever 12 is fixedly welded with the first box piston 11, and the other end of the stop lever is in contact constraint with the second box piston 13, so that the thrust between the pistons is transmitted and the volume of the oil chamber 6 is kept unchanged. A telescopic oil cylinder 8, a telescopic support rod 9 and a bolt oil cylinder 10 are arranged in the air cavity 7, and two ends of the telescopic oil cylinder 8 are respectively hinged with the end wall of the pressure-resistant box body 4 and the center of the end surface of the first box body piston 11, so that the telescopic motion of the first box body piston 11 can be controlled; the telescopic supporting rod 9 comprises a sleeve 901 and a round rod 902, the end parts of the sleeve 901 and the round rod 902 are respectively welded and fixed on the end wall of the pressure-resistant box 4 and the end surface of the first box piston 11, the round rod 902 can do telescopic motion in the sleeve 901, the sleeve 901 and the round rod 902 are respectively provided with a first through hole 903 and a second through hole 904 with the same aperture at the position shown in the figure, when the round rod 902 extends to the position shown in the figure 3, the axle centers of the first through hole 903 and the second through hole 904 are superposed, the telescopic supporting rod 9 does not limit two in the figure, and the number can be increased and uniformly distributed according to the actual stress condition; each telescopic supporting rod 9 is provided with a bolt oil cylinder 10, the diameter of a cylindrical bolt is the same as the diameters of the first through hole 903 and the second through hole 904, and when the axle centers of the first through hole 903 and the second through hole 904 are coincident, the bolt oil cylinder 10 can push the cylindrical bolt to extend into the first through hole 903 and the second through hole 904 so as to limit the relative positions of the sleeve 901 and the round rod 902 and bear certain load.
Still include deep sea manned platform 2, this high pressure water replacement device installs in the top of deep sea manned platform 2, and deep sea manned platform 2 top is through cockpit 3 and shuttle carrier 1 intercommunication, and the cockpit 3 sets up upper enclosure 102 and lower enclosure 202 from top to bottom respectively, and shuttle carrier 1 bottom is provided with upper hatch board lid 101, is provided with lower hatch board lid 201 on the deep sea manned platform 2, annotates the drain pipe 14 and is connected with the cockpit 3.
The high-pressure water replacing device has the main functions of injecting and discharging high-pressure water for the transition cabin 3 and assisting the normal connection and disconnection of the shuttle carrier 1 and the deep sea manned platform 2.
When the invention is used, the following nine states are available: the method comprises the steps of a standby state, a water injection process, a water injection completion process, a pressurization completion process, a pressure relief completion process, a drainage process and a drainage completion process.
In a standby state, the shuttle carrier 1 is normally connected with the deep sea manned platform 2, the transition cabin 3 is a normal pressure cavity, the electric valve 15 and all oil inlets and oil outlets are in a closed state, the sea water cavity 5 is filled with normal pressure sea water, and the oil cavity 6 is filled with normal pressure hydraulic oil (as shown in figure 2).
(II) during water injection, personnel sequentially open the lower hatch cover 101 and the upper hatch cover 101, close the two hatch covers after entering the shuttle carrier 1, open a vent valve (convenient for discharging air in the transition cabin 3 and filling seawater) and an electric valve 15 of the upper hatch cover 101, work the telescopic oil cylinder 8, push the first box piston 11, the oil cavity 6 and the second box piston 13 to integrally move leftwards, and synchronously inject normal-pressure seawater in the seawater cavity 5 into the transition cabin 3.
And (III) after water injection is finished, when the transition cabin 3 is filled with normal-pressure seawater, closing the vent valve of the upper cabin cover 101, enabling the axle centers of the first through hole 903 and the second through hole 904 of the telescopic supporting rod 9 to coincide, and enabling the oil inlet 401 and the oil outlet 402 of the box body to be communicated with the oil cavity 6 (as shown in figure 3).
And (IV) in the pressurizing process, the bolt oil cylinder 10 works to enable the bolt to extend into the first through hole 903 and the second through hole 904, then high-pressure oil is injected into the oil inlet 401 of the box body, and the high-pressure oil pushes the second box body piston 13 to move leftwards so as to compress and pressurize the seawater in the transition cabin 3.
And fifthly, after pressurization is finished, the oil pressure in the oil cavity 6 is consistent with the external seawater pressure and the oil inlet 401 of the box body is closed, at the moment, the seawater pressure in the transition cabin 3 is the same as the external seawater pressure (as shown in figure 4), the upper enclosure trap 102 and the lower enclosure trap 202 can be easily separated, so that the high-pressure water replacing device completes the releasing assistance of the shuttle penetrating carrier 1, and the injection amount of high-pressure oil in the oil cavity 6 is equal to the seawater compression amount of the transition cabin 3.
(VI), the pressure release process, after shuttle carrier 1 accomplishes the operation task and docks and seal with deep sea manned platform 2, the high pressure water is replaced the device and is begun the pressure release: and an oil return port is opened, hydraulic oil in the oil cavity 6 becomes normal pressure, high-pressure seawater in the transition cabin 3 pushes the second box piston 13 to move rightwards, and the high-pressure seawater is decompressed.
And seventhly, after the pressure relief is finished, the piston 13 of the second tank body moves to be in contact with the stop lever 12, the seawater in the transition cabin 3 is changed into normal pressure, and the high-pressure water replacing device returns to the state shown in the figure 3.
And (eight) in the drainage process, an oil inlet and an oil outlet of the box body are closed, the bolt oil cylinder 10 works to enable the bolt to be separated from the first through hole 903 and the second through hole 904, then oil return is injected into an oil outlet 802 of the medium-low pressure oil telescopic oil cylinder from an oil inlet 801 of the telescopic oil cylinder, the telescopic oil cylinder 8 makes contraction motion to drive the first box piston 11 and the second box piston 13 to synchronously move rightwards, and seawater in the transition cabin 3 is discharged into the seawater cavity 5 with the gradually increased volume.
And (ninthly), after the water is drained, returning the first box piston 11 and the second box piston 13 to the positions shown in fig. 2, closing the electric valve 15, completely draining the seawater in the transition cabin 3, and closing oil inlets and oil outlets of the telescopic oil cylinder 8 and the bolt oil cylinder 10.
At this point, the high-pressure seawater substitution device finishes one cycle of operation flow, returns to a standby state after the water drainage is finished, and can repeat the process for unlimited times, so that the auxiliary shuttle carrier 1 realizes the repeated release and connection with the deep sea manned platform 2.
The opening and closing conditions of the main valve and the oil inlet and outlet in the operation process of the high-pressure water replacing device are shown in the table 1.
TABLE 1 opening and closing of main valve and oil inlet and outlet
The above description is intended to be illustrative, and not restrictive, the scope of the invention being indicated by the claims, and all changes that come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Claims (9)
1. A high-pressure water replacing device for assisting deep sea connection and disconnection is characterized in that: the device comprises a pressure-resistant box body (4), a first box body piston (11) and a second box body piston (13) are arranged inside the pressure-resistant box body (4) in parallel, the interior of the pressure-resistant box body (4) is divided into a seawater cavity (5), an oil cavity (6) and an air cavity (7) through the first box body piston (11) and the second box body piston (13), the seawater cavity (5) is communicated with a transition cabin (3) through a water injection and drainage pipe (14), normally injected liquid pressure oil is filled in the oil cavity (6) and moves along with the first box body piston (11) and the second box body piston (13), a horizontal telescopic oil cylinder (8) is installed in the air cavity (7), two ends of the telescopic oil cylinder (8) are hinged to the inner end wall of the pressure-resistant box body (4) and the end face of the first box body piston (11) respectively, telescopic supporting rods (9) are installed at the upper end and the lower end of the telescopic oil cylinder (8) respectively, and bolt oil cylinders (10) are correspondingly fixed on the upper inner wall and lower wall of the pressure-resistant box body (4) respectively, the output end of the bolt oil cylinder (10) corresponds to the through hole of the telescopic supporting rod (9).
2. The high pressure water exchange device for assisting in the connection and disconnection of deep sea according to claim 1, wherein: the pressure-resistant box body (4) is of a cylindrical structure.
3. The high pressure water exchange device for assisting in the connection and disconnection of deep sea according to claim 1, wherein: an electric valve (15) is arranged at the tail end of the water injection and drainage pipe (14).
4. The high pressure water exchange device for assisting in the connection and disconnection of deep sea according to claim 1, wherein: a plurality of parallel and spaced blocking rods (12) are arranged between the first box piston (11) and the second box piston (13), one end of each blocking rod (12) is welded and fixed with the first box piston (11), the other end of each blocking rod is in contact constraint with the second box piston (13), thrust between the pistons is transmitted, and the volume of the oil cavity (6) is kept unchanged.
5. The high pressure water exchange device for assisting in the connection and disconnection of deep sea according to claim 1, wherein: the telescopic supporting rod (9) comprises a sleeve (901) and a round rod (902), the round rod (902) moves telescopically in the sleeve (901), the end of the sleeve (901) is fixed on the inner end wall of the pressure-resistant box body (4), the end of the round rod (902) is welded and fixed with the end face of a box body piston (11), a through hole (903) and a through hole (904) are respectively formed in the sleeve (901) and the round rod (902), and the diameter of a cylindrical bolt at the output end of the bolt oil cylinder (10) is the same as the aperture of the through hole (903) and the aperture of the through hole (904).
6. The high pressure water exchange device for assisting in the connection and disconnection of deep sea according to claim 1, wherein: and the bolt oil cylinder (10) is provided with a bolt oil cylinder oil inlet (1001) and a bolt oil cylinder oil outlet (1002).
7. The high pressure water exchange device for assisting in the connection and disconnection of deep sea according to claim 1, wherein: and a telescopic oil cylinder oil inlet (801) and a telescopic oil cylinder oil outlet (802) are arranged on the telescopic oil cylinder (8).
8. The high pressure water exchange device for assisting in the connection and disconnection of deep sea according to claim 1, wherein: a tank oil inlet (401) and a tank oil outlet (402) are arranged on the pressure-resistant tank body (4).
9. A use method of a high-pressure water replacing device for assisting deep sea connection and disconnection is characterized in that: the method comprises the following five stages:
a standby state, a water injection process, a pressurization process, a pressure relief process and a drainage process,
a standby state: the shuttle carrier (1) is connected with the deep sea manned platform (2) in a carrying way, the transition cabin (3) is a normal pressure cavity, the electric valve (15) and all oil inlets and oil outlets are in a closed state, the normal pressure seawater is filled in the seawater cavity (5), and the normal pressure hydraulic oil is filled in the oil cavity (6);
and (3) water injection process: the electric valve (15) is opened, medium and low pressure hydraulic oil is injected into the telescopic oil cylinder (8), the first box piston (11), the oil cavity (6) and the second box piston (13) are pushed to integrally move leftwards, normal pressure seawater is injected into the transition cabin (3), when the transition cabin (3) is just filled with seawater, the axle centers of the first through hole (903) and the second through hole (904) of the telescopic supporting rod (9) are superposed, and the box oil inlet (401) and the box oil outlet (402) are just communicated with the oil cavity (6);
and (3) pressurizing process: firstly, injecting medium-low pressure oil into an oil inlet (1001) of a bolt oil cylinder, returning oil from an oil outlet (1002) of the bolt oil cylinder, enabling a cylindrical bolt to extend into a first through hole (903) and a second through hole (904) to limit the displacement of a telescopic supporting rod (9), then injecting high-pressure oil into an oil inlet (401) of a box body, closing the oil inlet (401) of the box body after the oil pressure in an oil cavity (6) is consistent with the external seawater pressure, at the moment, the seawater pressure in a transition cabin (3) is the same as the external seawater pressure, easily separating an upper trap (102) from a lower trap (202), and completing the releasing assistance of the high-pressure water replacing device on a shuttle carrier (1);
after the shuttle carrier (1) completes the operation task and is in butt joint with the deep sea manned platform (2) and the sealing is finished, the high-pressure water replacing device starts the pressure relief process: opening an oil outlet (402) of the box body, changing hydraulic oil in the oil cavity (6) to be normal pressure, pushing a second box body piston (13) to move rightwards by high-pressure seawater in the transition cabin (3) until the second box body piston is contacted with a stop lever (12), and changing the seawater in the transition cabin (3) to be normal pressure;
and (3) a drainage process: closing a box body oil inlet (401), enabling a bolt oil cylinder (10) to work, enabling a cylindrical bolt to be separated from a first through hole (903) and a second through hole (904), enabling a telescopic oil cylinder (8) to work, enabling the telescopic oil cylinder (8) to do contraction movement to drive a first box body piston (11) and a second box body piston (13) to synchronously move rightwards, simultaneously discharging seawater in a transition cabin (3) into a seawater cavity (5) with gradually increased volume until the first box body piston (11) and the second box body piston (13) return, then closing an electric valve (15), and at the moment, completely discharging the seawater in the transition cabin (3);
the high-pressure water replacing device injects and discharges high-pressure water to the transition cabin (3) for unlimited times, and the shuttle carrier (1) is assisted to realize repeated release and connection with the deep sea manned platform (2) under the advantage condition of not absorbing or accumulating any external redundant seawater.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210263341.2A CN114590382B (en) | 2022-03-17 | 2022-03-17 | High-pressure water replacement device for assisting deep sea connection and disconnection and use method |
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| CN114590382B (en) | 2023-03-28 |
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