CN114811187A - Dry-type work cabin is changed to sea pipe riser - Google Patents
Dry-type work cabin is changed to sea pipe riser Download PDFInfo
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- CN114811187A CN114811187A CN202210434343.3A CN202210434343A CN114811187A CN 114811187 A CN114811187 A CN 114811187A CN 202210434343 A CN202210434343 A CN 202210434343A CN 114811187 A CN114811187 A CN 114811187A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L1/00—Laying or reclaiming pipes; Repairing or joining pipes on or under water
- F16L1/26—Repairing or joining pipes on or under water
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Abstract
The invention discloses a dry working chamber for replacing a marine riser, which relates to the technical field of replacement of the marine riser, and comprises an original marine riser, a new marine riser, an outer chamber, an inner chamber, a fixing mechanism, a moving mechanism, a rotating mechanism and a balancing mechanism, wherein the outer chamber is divided into a left space and a right space, the middle part of the left space is separated by a sliding door, the inner chamber is fixedly installed in the right space of the outer chamber, mounting plates are arranged at the upper end and the lower end of the left space of the outer chamber, clamping components are arranged on the mounting plates and used for clamping the original marine riser, the mounting plates are provided with the moving mechanism used for moving the original marine riser after being cut off, a toothed ring is rotatably installed in the right space of the outer chamber and provided with a plurality of arc-shaped grooves, at least one hollow groove is arranged in each arc-shaped groove, the arc-shaped grooves can clamp the original marine riser or the new marine riser after being cut off, the balancing mechanism used for assisting the lifting and balancing of the dry working chamber for replacing the marine risers is arranged at the lower end of the right side of the outer chamber, the invention has the characteristics of high integration degree, rich functions and simple operation.
Description
Technical Field
The invention relates to the technical field of replacement of a marine riser, in particular to a dry-type working cabin for replacing a marine riser.
Background
The pipeline connecting the floating bodies on the sea bottom and the sea surface is also called as a marine riser, which mainly has the functions of conveying petroleum or natural gas and the like, the maintenance of the marine riser is divided into an above-water maintenance and replacement technology and an underwater maintenance and replacement technology according to different damage positions, the above-water maintenance and replacement part is replaced by adopting a conventional method, the marine riser of the underwater part is replaced by adopting a diving device or an air diving technology, the replacement is difficult due to the heavy weight of the marine riser, the batch replacement cannot be realized, and the underwater replacement of the marine riser is difficult, Chinese patent with publication No. CN206206777U discloses a crude oil maintenance and replacement device of an offshore platform, which comprises a device body and a crude oil riser, wherein a slide rail is fixedly arranged on the crude oil riser, the inner side of the device body is movably connected with the slide rail through a pulley, rubber rings for sealing are fixedly arranged between the top and the bottom of the device body and the crude oil riser, the device is characterized in that a maintenance cabin, a storage cabin and a control cabin which can be freely moved by personnel are fixedly arranged in the device body, propellers are fixedly arranged at the top end and the bottom end of the device body, the device changes the original single diving maintenance equipment into the diving maintenance equipment integrated with the crude oil vertical pipe by installing a slide rail on the marine pipe vertical pipe and utilizing a pulley to be movably connected with the slide rail, but the slide rail is arranged on the outer side of the marine pipe vertical pipe, so that the cost is high, the implementation is difficult, manual replacement is needed, and the automation degree is low.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: a dry-type work chamber for replacing a riser of a marine vessel is provided.
Aiming at the technical problems, the technical scheme provided by the invention is as follows: a dry-type working cabin for replacing a marine pipe riser comprises an original marine pipe riser, a new marine pipe riser, an outer cabin, an inner cabin, a fixing mechanism, a moving mechanism, a rotating mechanism and a balancing mechanism, wherein two ends of the new marine pipe riser are of a telescopic double-layer structure; the left side of the outer cabin is rotatably provided with an opening plate, the outer cabin is divided into a left space and a right space, the middle space is separated by a sliding door, the right space of the outer cabin is fixedly provided with an inner cabin, and the lower end of the left space of the outer cabin is provided with a water pump for pumping seawater out; the opening plate can be with former sea pipe riser card in outer deck left side space, both ends are equipped with the mounting panel about the outer deck left side space, are equipped with clamping component on the mounting panel for press from both sides tight former sea pipe riser, outer deck right side space rotates the installation ring gear, the ring gear has a plurality of arcs, the arc has a dead slot at least, but former sea pipe riser or new sea pipe riser that the arc chucking cut off, outer deck right side lower extreme be equipped with be used for assisting the sea pipe riser to change dry-type work cabin lift and balanced balance mechanism.
The mounting plate is fixedly provided with a fixing plate and a cylinder bracket, the fixing plate is divided into two layers, the lower layer of the fixing plate is rotatably provided with a lower gear, the upper layer of the fixing plate is rotatably provided with an upper gear, the upper gear is fixedly provided with a first end of a lower middle pipe, the lower middle pipe is provided with three sides, two adjacent sides are vertical, the lower gear is fixedly provided with a first end of a control shaft, a second end of the control shaft is connected with a lower inner pipe through a transmission assembly, the lower middle pipe is internally and rotatably provided with a lower inner pipe, the second end of the lower middle pipe is slidably provided with an upper middle pipe, the upper middle pipe is rotatably provided with an upper inner pipe, the upper inner pipe is slidably connected with the lower inner pipe, the upper end of the upper inner pipe is fixedly provided with an electric saw I, the lower inner pipe is fixedly provided with an electric saw II, the electric saw I and the electric saw II are used for cutting off the original marine pipe vertical pipe, the outer side of the upper middle pipe is fixedly provided with an upper outer pipe, the outer side of the lower middle pipe is fixedly provided with a lower outer pipe, the upper clamping jaw, the lower outer tube is provided with a lower clamping jaw, the upper clamping jaw and the lower clamping jaw are controlled to open and close through a controller, and the upper outer tube is connected with the lower outer tube in a sliding mode.
Furthermore, the cylinder is fixedly installed on the cylinder support, the moving motor is fixedly installed on the telescopic rod of the cylinder, the output shaft of the moving motor coaxially rotates the control gear, when the cylinder extends, the control gear is meshed with the lower gear, and when the cylinder compresses, the control gear is meshed with the upper gear and used for providing power for the movement of the cut marine riser.
Furthermore, the toothed ring is meshed with the transmission gear, a waterproof board is fixedly installed in the right space of the outer cabin, the waterproof board is fixedly installed on the lower surface of the inner cabin, the transmission gear is rotatably installed on the waterproof board, the rotating motor is fixedly installed on the waterproof board, an incomplete gear is fixedly installed on a rotating shaft of the rotating motor, and a toothed part of the incomplete gear is meshed with the toothed ring and is used for the intermittent rotation of the toothed ring.
Further, four cassettes of inside fixed mounting of interior cabin, fixed mounting expansion plate on the cassette, expansion plate central point puts and rotates installation control lever, the right side space of outer cabin surface fixed mounting ballast piece, the control lever outside is equipped with pressurized-water board, ballast piece, outer cabin right side lower extreme is equipped with a plurality of limbers, goes up and down through the big or small control that changes buoyancy.
Further, ballast piece bottom be equipped with the vortex groove, the ballast piece lower extreme rotates the installation ring, the first end of fixed mounting connecting rod on the ring, connecting rod second end fixed mounting connector, the rotational mounting connector of ballast piece, slidable mounting balancing piece on the connecting rod, the balancing piece upper end is established the vortex inslot, the control lever lower extreme is equipped with the card key, the ring is equipped with the draw-in groove, card key length and ring length the same, prevent that the sea from surging secretly, keep balance.
Furthermore, the control rod is provided with two sections of threads in opposite directions, a polished rod is arranged between the two sections of threads, the lower end inside the right side of the inner cabin is provided with a water pressing plate in a sliding mode, when the water pressing plate is connected with the upper section of threads, the water pressing plate moves upwards, when the water pressing plate is connected with the lower section of threads, the water pressing plate moves downwards, the length of the clamping key is smaller than that of the polished rod, and when the clamping key is connected with the circular ring, the water pressing plate is in contact with the polished rod and is used for assisting the balance and lifting of the working cabin.
Furthermore, a door is arranged at the upper end of the inner cabin, an observation port is arranged at the position of the inner cabin corresponding to the sliding door, the device is characterized in that a controller is arranged above the observation port, a worker replaces a sea pipe vertical pipe through the controller, necessary articles required by the worker are arranged in the inner chamber, a propeller for driving the working chamber to move forwards is arranged on the right side of the outer chamber, a lifting lug is arranged on the right side of the outer chamber, a first vent hole is arranged on the left side of the outer chamber, a second vent hole is arranged at the bottom of the inner chamber, a gas booster is arranged in the inner chamber, a gas release pump and a gas suction pump are arranged in the gas booster, two ends of the gas release pump and two ends of the gas suction pump are respectively connected with a valve A or a valve B through a three-way valve, the valve A penetrates through the inner chamber through a hose to be connected with the first vent hole, the valve B is connected with the second vent hole through a hose, the lifting device is used for facilitating the lifting and descending of the dry type working cabin for replacing the marine riser, so that workers can work in a dry environment.
Further, the outer cabin left side and the upper and lower both ends of open-close plate be equipped with the circular arc through-hole, the circular arc through-hole outside be equipped with the rubber circle, push-and-pull door both sides fixed mounting panel about, the mounting panel left end be equipped with the horizontally elongated slot, the mounting panel right-hand member is equipped with the vertically spout, the spout on reverse slip clamp plate I, clamp plate II for press from both sides tight former sea pipe riser.
Compared with the prior art, the invention has the beneficial effects that: (1) the movable mechanism and the rotary mechanism are matched to realize automatic replacement of the marine riser, the movable mechanism is internally provided with an outer pipe, a middle pipe and an inner pipe to move the original marine riser to the space on the right side of the outer cabin after being cut off, the rotary mechanism is combined to intermittently rotate to roll out a new marine riser, two ends of the new marine riser are provided with telescopic double-layer structures, the new marine riser is extended by the cylinder and clamped at the cut-off position of the original marine riser, and the marine riser can be rapidly replaced in batches; (2) according to the invention, the outer cabin and the inner cabin are arranged, the double-layer working cabin can better resist pressure in the sea, the outer cabin is separated into two closed spaces through the sliding door, seawater is prevented from entering, workers control the replacement of the riser of the marine pipe in the inner cabin through the controller, and the safety in the replacement process and the dry environment in the cabin are ensured; (3) according to the invention, the balance mechanism is arranged below the space on the right side of the outer cabin, the balance block moves along the vortex-shaped groove at the bottom of the weight block, the balance property of the dry-type working cabin replaced by the marine riser is ensured, the hidden surge in the sea is resisted, the inclination is prevented, meanwhile, the drainage quantity of the lower end on the right side of the outer cabin is controlled, the buoyancy is changed, and the rising and falling heights of the dry-type working cabin replaced by the marine riser are assisted.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a schematic structural view (rear view angle) of the fixing mechanism of the present invention.
Fig. 3 is a schematic structural view (front view angle) of the fixing mechanism of the present invention.
FIG. 4 is a schematic view of a clamping assembly according to the present invention.
FIG. 5 is a first schematic view of the moving mechanism of the present invention.
FIG. 6 is a second schematic view of the moving mechanism structure of the present invention.
Fig. 7 is a schematic structural view of the rotating mechanism of the present invention.
Fig. 8 is a first schematic view of the balance mechanism structure of the present invention.
Fig. 9 is a second schematic view of the balance mechanism structure of the present invention.
FIG. 10 is a schematic view of the gas booster connecting line according to the present invention.
Reference numerals: 1-an outer cabin; 2-inner cabin; 3-a fixing mechanism; 4-a moving mechanism; 5-a rotating mechanism; 6-a balancing mechanism; 7-original marine riser; 8-a new marine riser; 301-a switching motor; 302-opening and closing the motor bracket; 303-opening and closing shaft; 304-a plywood; 305-a mounting plate; 306-a clamping assembly; 3061-clamping the motor; 3062-gear; 3063-lead screw; 3064-clamping plate I; 3065-clamping plate II; 3066-guide bar; 3067-guide bar support; 3068-lead screw support; 401-a cylinder; 402-a moving motor; 403-control gear; 404-a cylinder support; 405-a fixation plate; 406-lower gear; 407-upper gear; 408-lower middle tube; 409-upper intermediate pipe; 410-upper outer tube; 411-lower outer tube; 412-an upper jaw; 413-a lower jaw; 414-upper supporting plate; 415-a lower supporting plate; 416-cylinder I; 417-cylinder ii; 418-electric saw I; 419-electric saw II; 420-upper inner tube; 421-lower inner tube; 422-left belt wheel; 423-a conveyor belt; 424-right pulley; 425-control shaft; 501-waterproof board; 502-rotating electrical machine; 503-incomplete gear; 504-toothed ring; 505-a transmission gear; 601-a card holder; 602-a retractable plate; 603-telescopic cylinder; 604-a balancing motor; 605-a drive gear; 606-a driven gear; 607-control lever; 608-water pressing plate; 609-a weight; 610-a circular ring; 611-a connecting rod; 612-a connector; 613-balance weight.
Detailed Description
The technical scheme of the invention is further explained by the specific implementation mode in combination with the attached drawings.
Wherein the showings are for the purpose of illustration only and are shown by way of illustration only and not in actual form, and are not to be construed as limiting the present patent; to better illustrate the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.
Example (b): as shown in fig. 1-10, the dry-type work cabin for replacing the marine riser comprises an outer cabin 1, an inner cabin 2, a fixing mechanism 3, a moving mechanism 4, a rotating mechanism 5, a balancing mechanism 6, an original marine riser 7 and a new marine riser 8, wherein the left side of the outer cabin 1 is rotatably provided with a plywood 304, the outer cabin 1 is divided into a left space and a right space, the middle space is separated by a sliding door, the left side of the outer cabin 1 is provided with a first vent hole, the right side of the outer cabin 1 is fixedly provided with the inner cabin 2, the upper end of the inner cabin 2 is provided with a door for a worker to enter, the inner cabin 2 is provided with an observation hole corresponding to the sliding door of the outer cabin 1 for observing and replacing the marine riser, a controller is arranged above the observation hole, the worker replaces the marine riser through the controller, the bottom of the inner cabin 2 is provided with a second vent hole, necessary articles required for the worker to work are arranged in the inner cabin 2, the right side of the outer cabin 1 is provided with a propeller for driving the work cabin to go forward, the right side of the outer cabin 1 is provided with a lifting lug for lifting a dry-type working cabin of a marine riser, the lower end of the space on the left side of the outer cabin 1 is provided with a water pump for pumping out seawater in the space on the left side of the outer cabin 1, the inner cabin 2 is internally provided with a gas booster, a gas discharge pump and a gas suction pump are arranged in the gas booster, two ends of the gas discharge pump and the gas suction pump are respectively connected with a valve A or a valve B through a three-way valve, the valve A penetrates through a hose to penetrate through the inner cabin 2 to be connected with a first air vent, and the valve B is connected with a second air vent through a hose.
Fixed mounting motor support 302 that opens and shuts in 1 left side upper end of nacelle, motor support 302 lower extreme fixed mounting motor 301 that opens and shuts, motor 301 that opens and shuts coaxially rotates axle 303 that opens and shuts, 1 left side rotation mounting axle 303 that opens and shuts in the nacelle, axle 303 that opens and shuts behind the open-close plate 304 fixed mounting, the left side of nacelle 1 and both ends are equipped with the circular arc through-hole from top to bottom with the open-close plate 304, the circular arc through-hole outside is equipped with the rubber circle, be used for adapting to the marine riser of different diameters, 1 left side space in nacelle is equipped with two upper and lower mounting panels 305, mounting panel 305 right side fixed mounting both sides about 1 push-and-pull door in the nacelle, the left end horizontal direction of mounting panel 305 is equipped with the elongated slot, be convenient for the entering of former marine riser 7, the right-hand member is equipped with the spout of vertical direction on the mounting panel 305, be equipped with clamping component 306 on the mounting panel 305, be used for pressing from both sides tight former marine riser 7.
The clamping assembly 306 comprises a clamping plate I3064 and a clamping plate II 3065 which are slidably mounted on a sliding groove of the mounting plate 305, the clamping plate I3064 and the clamping plate II 3065 are used for clamping an original marine pipe riser 7, a clamping motor 3061 is fixedly mounted on the mounting plate 305, an output shaft of the clamping motor 3061 is coaxially and rotatably mounted with a gear 3062, the gear 3062 is fixedly connected with a lead screw 3063, threads on two sides of the lead screw 3063 are opposite, a guide rod support 3067 and a lead screw support 3068 are fixedly mounted on the mounting plate 305, a guide rod 3066 is fixedly mounted on the guide rod support 3067, a lead screw 3063 is rotatably mounted on the lead screw support 3068, the clamping plate I3064 is slidably connected with the guide rod 3066, the clamping plate I3064 is threadedly connected with the lead screw 3063, the clamping plate II 3065 is slidably connected with the guide rod 3066, and the clamping plate II 3065 is threadedly connected with the lead screw 3063.
An air cylinder bracket 404 and a fixing plate 405 are fixedly installed on the lower end installing plate 305, an air cylinder 401 is fixedly installed on the air cylinder bracket 404, a moving motor 402 is fixedly installed on an expansion rod of the air cylinder 401, a control gear 403 is fixedly installed on a rotating shaft of the moving motor 402, the fixing plate 405 is divided into two layers, a lower gear 406 is rotatably installed on the lower layer of the fixing plate 405, an upper gear 407 is rotatably installed on the upper layer of the fixing plate 405, a first end of a lower middle pipe 408 is fixedly installed on the upper gear 407, a first end of a control shaft 425 is fixedly installed on the lower gear 406, when the air cylinder 401 extends, the control gear 403 is meshed with the lower gear 406, when the air cylinder 401 compresses, the control gear 403 is meshed with the upper gear 407, and the control shaft 425 is arranged on the inner side of the lower middle pipe 408.
The second end of the lower middle pipe 408 is connected with the upper middle pipe 409 in a sliding way, the outer side of the upper middle pipe 409 is fixedly provided with an upper outer pipe 410, the outer side of the second end of the lower middle pipe 408 is fixedly provided with a lower outer pipe 411, the lower middle pipe 408 has three sides, two adjacent sides are vertical, the upper end of the upper outer pipe 410 is provided with an upper clamping jaw 412, the lower end of the lower outer pipe 411 is provided with a lower clamping jaw 413, the upper clamping jaw 412 and the lower clamping jaw 413 are controlled to open and close through a controller and are used for clamping the original marine riser 7 or the new marine riser 8, the upper outer pipe 410 is fixedly provided with an upper supporting plate 414, the lower outer pipe 411 is fixedly provided with a lower supporting plate 415, a cylinder I416 and a cylinder II 417 are fixedly connected, the telescopic rod of the cylinder I416 is fixedly provided with the upper supporting plate 414, the telescopic rod of the cylinder II 417 is fixedly provided with the lower supporting plate 415, the cylinder I416 and the cylinder II are used for controlling the telescopic rod 410 and the telescopic rod 417 to control the telescopic rod of the upper outer pipe 411, the inner pipe 420 is rotatably arranged inside the upper middle pipe 409, the lower inner pipe 408 is rotatably arranged inside the lower inner pipe 421, go up inner tube 420 upper end and be equipped with electric saw I418, lower inner tube 421 lower extreme is equipped with electric saw II 419, electric saw I418, electric saw II 419 is used for cutting off former sea pipe riser 7, cylinder II 417, the distance is less than the height of the 1 push-and-pull door in outer cabin between the I418 of electric saw, guarantee that former sea pipe riser 7 after cutting off can get into the right side space in outer cabin 1, lower inner tube 421 lower extreme fixed mounting left pulley 422, control shaft 425 second end fixed mounting right pulley 424, the conveyer belt 423 is established in left pulley 422, the outside of right pulley 424.
The inside rotation installation ring gear 504 in outer cabin 1 right side space, be equipped with a plurality of arcs on the ring gear 504, new marine pipe riser 8 or the former marine pipe riser 7 that cuts off can be blocked to the arc, the arc has at least one dead slot, be convenient for deposit former marine pipe riser 7 that cuts off, the lower fixed surface installation waterproof board 501 of interior cabin 2, separate into two spaces about with outer cabin 1 right side space through waterproof board 501, fixed mounting rotating electrical machines 502 on waterproof board 501, incomplete gear 503 of fixed mounting in the rotating shaft of rotating electrical machines 502, incomplete gear 503 has tooth part and ring gear 504 to mesh mutually, rotate two drive gear 505 of installation on the waterproof board 501, drive gear 505 and ring gear 504 mesh mutually, new marine pipe riser 8 upper and lower both ends are double-deck extending structure, the junction is the sealing strip, guarantee the leakproofness.
Four clamping seats 601 are fixedly arranged inside the inner cabin 2 to facilitate rest of workers, a telescopic plate 602 is fixedly arranged on each clamping seat 601, the upper end of a control rod 607 is rotatably arranged at the center of each telescopic plate 602, a telescopic cylinder 603 is fixedly arranged on the inner cabin 2, a telescopic rod of each telescopic cylinder 603 is fixedly arranged on each telescopic plate 602, a balance motor 604 is fixedly arranged on each telescopic plate 602, a driving gear 605 is fixedly arranged on a rotating shaft of each balance motor 604, the driving gear 605 is meshed with a driven gear 606, a driven gear 606 is fixedly arranged on each control rod 607, a plurality of water through holes are formed in the lower end of the right space of the outer cabin 1, two sections of threads are arranged on each control rod 607, the directions of the two sections of threads are opposite, a light rod part is arranged between the two ends of the threads, a water pressing plate 608 is arranged outside each control rod 607, the water pressing plate 608 is slidably arranged at the lower end of the right space of the outer cabin 1 through splines, when the upper section of the threads of the control rod 607 are connected with the water pressing plate 608, the water pressing plate 608 moves upwards, when the lower thread of the lever 607 is coupled to the water pressure plate 608, the water pressure plate 608 moves downward, and when the middle polished rod portion of the lever 607 is coupled to the water pressure plate 608, the water pressure plate 608 does not move.
The lower surface of the right side space of the outer cabin 1 is fixedly provided with a pressure weight 609, the lower end of a control rod 607 is provided with the pressure weight 609, the lower end of the pressure weight 609 is provided with a vortex groove, the lower end of the pressure weight 609 is rotatably provided with a ring 610, the ring 610 is fixedly provided with a first end of a connecting rod 611, the connecting rod 611 is fixedly provided with a second connecting head 612, the pressure weight 609 is rotatably provided with a connecting head 612, the connecting rod 611 is slidably provided with a balance weight 613, the upper end of the balance weight 613 is arranged in the vortex groove of the pressure weight 609, the lower end of the control rod 607 is provided with a clamping key, the ring 610 is provided with a clamping groove, the length of the clamping key is the same as that of the ring 610, the length of the clamping key is smaller than that of a polished rod in the middle of the thread of the control rod 607, when the clamping key is connected with the ring 610, the pressure plate 608 is in contact with the polished rod, the weight of the pressure weight 609 is controlled by changing the position of the balance weight 613, and the vibration in the sea is avoided.
The invention discloses a working principle of a dry-type working cabin for replacing a marine riser, which comprises the following steps: when the marine riser needs to be replaced, a worker enters the inner cabin 2, the controller controls the dry type working cabin of the marine riser, the lifting lug on the outer cabin 1 is connected through a steel cable, the outer cabin 1 is placed in the sea, the joint of parts is provided with a sealing strip to prevent water from entering the outer cabin 1, the related motor is a waterproof motor, the control rod 607 is controlled through the balance motor 604, the upper end thread of the control rod 607 is connected with the water pressing plate 608, the balance motor 604 drives the control rod 607 to rotate through gear transmission to drive the water pressing plate 608 to move upwards, meanwhile, the pressure between the water pressing plate 608 and the waterproof plate 501 is controlled through the valve B and the suction pump, seawater enters from the water through hole of the outer cabin 1 to increase the weight of the outer cabin 1, so that the outer cabin 1 can sink to a proper position in the sea conveniently, when the marine surging occurs, the outer cabin 1 starts to shake, the lower end of the control rod 607 is connected with the circular ring 610 to drive the balance block 613 to change the position, changing the load of the outer cabin 1, further reducing the shaking, controlling the opening plate 304 to rotate through the opening and closing motor 301, clamping the original marine pipe riser 7 between the left space of the outer cabin 1 and the opening plate 304, rotating through the clamping motor 3061, driving the gear 3062 to rotate, driving the screw 3063 to rotate, driving the clamping plate I3064 and the clamping plate II 3065 to clamp the original marine pipe riser 7, opening the water pump in the left space of the outer cabin 1, pumping out the seawater, controlling the pressure in the left space of the outer cabin 1 through the control valve A and the air release pump, opening the sliding door in the middle of the outer cabin 1, at the moment, the upper arc-shaped groove of the gear ring 504 is opposite to the original marine pipe riser 7, the upper clamping jaw 412 and the lower clamping jaw 413 clamp the original marine pipe riser 7, extending the cylinder 401, the moving motor 402 drives the control gear 403 to rotate, driving the lower gear 406 to rotate, driving the control shaft 425 to rotate, driving the lower inner pipe 421 to rotate through belt transmission, driving the upper inner pipe 420 to rotate, the electric saws I418 and II 419 are driven to rotate, the electric saws I418 and II 419 cut off the original marine riser 7, the air cylinder 401 is compressed, the mobile motor 402 drives the upper gear 407 to rotate through the control gear 403, the lower intermediate pipe 408 is driven to rotate, the upper intermediate pipe 409 is driven to rotate, the upper outer pipe 410 and the lower outer pipe 411 are driven to rotate, the cut-off original marine riser 7 is moved into the hollow arc-shaped groove of the toothed ring 504 through the upper clamping jaw 412 and the lower clamping jaw 413, the rotary motor 502 is started to drive the incomplete gear 503 to rotate, the toothed ring 504 is driven to rotate, the new marine riser 8 is just opposite to the original marine riser 7, the two ends of the new marine riser 8 are clamped by the upper clamping jaw 412 and the lower clamping jaw 413, the new marine riser 8 is moved to the original marine riser 7 through the reverse rotation of the mobile motor 402, the air cylinders I416 and II 417 are extended to drive the two ends of the new marine riser 8 to extend, and as the two ends of the new marine riser 8 are of a double-layer telescopic structure, the new marine riser 8 is clamped into the inner end and the outer end of the original marine riser 7 to finish single replacement, after all the marine risers are replaced, the control rod 607 is controlled through the telescopic cylinder 603, the lower end thread of the control rod 607 is connected with the water pressing plate 608, the balance motor 604 drives the water pressing plate 608 to move downwards, and meanwhile, the pressure between the water pressing plate 608 and the waterproof plate 501 is controlled through the valve B and the air release pump, so that the seawater in the outer cabin 1 is reduced, and the buoyancy of the outer cabin 1 during lifting is increased.
The present invention is not limited to the above-described embodiments, and those skilled in the art will be able to make various modifications without creative efforts from the above-described conception and fall within the scope of the present invention.
Claims (8)
1. The utility model provides a dry-type work cabin is changed to sea pipe riser, includes former sea pipe riser (7), new sea pipe riser (8), its characterized in that: the marine riser comprises an outer cabin (1), an inner cabin (2), a fixing mechanism (3), a moving mechanism (4), a rotating mechanism (5) and a balancing mechanism (6), wherein two ends of a new marine riser (8) are of a telescopic double-layer structure; the left side of the outer cabin (1) is rotatably provided with a plywood (304), the outer cabin (1) is divided into a left space and a right space, the middle of the outer cabin is separated by a sliding door, the right space of the outer cabin (1) is fixedly provided with an inner cabin (2), and the lower end of the left space of the outer cabin (1) is provided with a water pump for pumping seawater out; the split plate (304) can clamp an original marine pipe riser (7) in the space on the left side of the outer cabin (1), mounting plates (305) are arranged at the upper end and the lower end of the space on the left side of the outer cabin (1), a clamping assembly (306) is arranged on each mounting plate (305) and used for clamping the original marine pipe riser (7), a toothed ring (504) is rotatably mounted in the space on the right side of the outer cabin (1), the toothed ring (504) is provided with a plurality of arc-shaped grooves, at least one hollow groove is formed in each arc-shaped groove, the arc-shaped grooves can clamp the cut original marine pipe riser (7) or a new marine pipe riser (8), and a balance mechanism (6) used for assisting the lifting and balancing of a dry-type marine pipe riser replacing working cabin is arranged at the lower end on the right side of the outer cabin (1);
a fixed plate (405) and a cylinder bracket (404) are fixedly arranged on the mounting plate (305), the fixed plate (405) is divided into two layers, a lower layer of the fixed plate (405) is rotatably provided with a lower gear (406), an upper layer of the fixed plate (405) is rotatably provided with an upper gear (407), the upper gear (407) is fixedly provided with a first end of a lower middle pipe (408), the lower middle pipe (408) is provided with three edges, two adjacent edges are vertical, the lower gear (406) is fixedly provided with a first end of a control shaft (425), a second end of the control shaft (425) is connected with a lower inner pipe (421) through a transmission assembly, the lower middle pipe (408) is rotatably provided with a lower inner pipe (421), a second end of the lower middle pipe (408) is slidably provided with an upper middle pipe (409), the upper inner pipe (420) is rotatably provided with an upper inner pipe (409), the upper inner pipe (420) is slidably connected with the lower inner pipe (421), the upper end of the upper inner pipe (420) is fixedly provided with an electric saw I (418), the electric saw II (419) is fixedly installed on the lower inner pipe (421), the electric saw I (418) and the electric saw II (419) are used for cutting off an original marine pipe riser (7), the outer pipe (410) is fixedly installed on the outer side of the upper middle pipe (409), the lower outer pipe (411) is fixedly installed on the outer side of the lower middle pipe (408), the upper outer pipe (410) is provided with the upper clamping jaw (412), the lower outer pipe (411) is provided with the lower clamping jaw (413), the upper clamping jaw (412) and the lower clamping jaw (413) are controlled to be opened and closed through the controller, and the upper outer pipe (410) is in sliding connection with the lower outer pipe (411).
2. The dry-working vessel for sea riser replacement according to claim 1, wherein: the air cylinder bracket (404) is fixedly provided with an air cylinder (401), an expansion rod of the air cylinder (401) is fixedly provided with a moving motor (402), an output shaft of the moving motor (402) coaxially rotates a control gear (403), when the air cylinder (401) expands, the control gear (403) is meshed with a lower gear (406), and when the air cylinder (401) compresses, the control gear (403) is meshed with an upper gear (407).
3. The dry-working vessel for sea riser replacement according to claim 2, wherein: the novel water-proof cabin is characterized in that the toothed ring (504) is meshed with the transmission gear (505), the waterproof plate (501) is fixedly installed in the right space of the outer cabin (1), the waterproof plate (501) is fixedly installed on the lower surface of the inner cabin (2), the transmission gear (505) is rotatably installed on the waterproof plate (501), the rotating motor (502) is fixedly installed on the waterproof plate (501), the incomplete gear (503) is fixedly installed on the rotating shaft of the rotating motor (502), and the toothed part of the incomplete gear (503) is meshed with the toothed ring (504).
4. The dry-working vessel for sea riser replacement according to claim 3, wherein: four cassette (601) of inside fixed mounting of interior cabin (2), fixed mounting expansion plate (602) on cassette (601), expansion plate (602) central point puts and rotates installation control lever (607), fixed surface installs ballast weight (609) under the right side space of outer cabin (1), and the control lever (607) outside is equipped with pressurized-water plate (608), ballast weight (609), and outer cabin (1) right side lower extreme is equipped with a plurality of limbers.
5. The dry-working vessel for sea riser replacement according to claim 4, wherein: the utility model discloses a ballast block, including ballast block (609), connecting rod (611) and connecting rod (611), ballast block (609) bottom be equipped with the vortex groove, ballast block (609) lower extreme rotation installation ring (610), the first end of fixed mounting connecting rod (611) is gone up in ring (610), connecting rod (611) second end fixed mounting connector (612), rotation installation connector (612) in ballast block (609), slidable mounting balancing piece (613) on connecting rod (611), establish balancing piece (613) upper end the vortex inslot, control lever (607) lower extreme is equipped with the card key, ring (610) are equipped with the draw-in groove, card key length and ring (610) length the same.
6. The dry-working vessel for sea riser replacement according to claim 5, wherein: the control rod (607) is provided with two sections of threads in opposite directions, a polished rod is arranged between the two sections of threads, the lower end of the inner part of the right side of the inner cabin (2) is provided with a water pressing plate (608) in a sliding mode, when the water pressing plate (608) is connected with the upper section of threads, the water pressing plate (608) moves upwards, when the water pressing plate (608) is connected with the lower section of threads, the water pressing plate (608) moves downwards, the length of the clamping key is smaller than that of the polished rod, and when the clamping key is connected with the circular ring (610), the water pressing plate (608) is in contact with the polished rod.
7. A dry-working sea-pipe riser replacement module according to any one of claims 1-6, wherein: inner chamber (2) upper end be equipped with the door, inner chamber (2) correspond push-and-pull door department be equipped with the viewing aperture, viewing aperture top be equipped with the controller, the workman changes the sea pipe riser through the controller, inner chamber (2) inside is equipped with and is used for the required indispensable article of workman, outer chamber (1) right side is equipped with the screw that the drive work cabin gos forward, outer chamber (1) right side is equipped with the lug, outer chamber (1) left side is equipped with air vent one, inner chamber (2) bottom is equipped with air vent two, sets up gaseous booster compressor in inner chamber (2), is equipped with pump and aspirator pump in the gaseous increase machine, and valve A or valve B are connected through three-way valve connection valve A or valve B respectively at air vent pump and aspirator pump both ends, valve A passes inner chamber (2) through the hose and connects air vent one, valve B passes through the hose connection air vent two.
8. The dry-working vessel for sea riser replacement according to claim 7, wherein: outer cabin (1) left side and open-close board (304) about both ends be equipped with the circular arc through-hole, the circular arc through-hole outside be equipped with the rubber circle, push-and-pull door about both sides fixed mounting panel (305), mounting panel (305) left end be equipped with the horizontally elongated slot, mounting panel (305) right-hand member is equipped with the vertically spout, the spout on reverse slip clamp plate I (3064), clamp plate II (3065) for press from both sides tight former sea pipe riser (7).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210434343.3A CN114811187B (en) | 2022-04-24 | 2022-04-24 | Dry-type work cabin is changed to sea pipe riser |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210434343.3A CN114811187B (en) | 2022-04-24 | 2022-04-24 | Dry-type work cabin is changed to sea pipe riser |
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| CN114811187A true CN114811187A (en) | 2022-07-29 |
| CN114811187B CN114811187B (en) | 2022-11-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210434343.3A Active CN114811187B (en) | 2022-04-24 | 2022-04-24 | Dry-type work cabin is changed to sea pipe riser |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115371615A (en) * | 2022-10-21 | 2022-11-22 | 山东省鲁南地质工程勘察院(山东省地质矿产勘查开发局第二地质大队) | Intelligent measuring equipment for depth of coal mining subsidence area |
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| Publication number | Publication date |
|---|---|
| CN114811187B (en) | 2022-11-01 |
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