Offshore flange connection type hose lowering, recycling and connecting auxiliary device

Abstract

The utility model discloses a connection auxiliary device for lowering and recycling an offshore flange connection type hose, which relates to the technical field of offshore drilling construction and comprises a base support, a rotating wheel frame and a sliding plate support. One side of the base support is rotationally connected with a lower guide wheel and a front guide wheel, and the lower guide wheel and the front guide wheel are arranged in an up-down staggered mode to form a guide space for limiting and guiding a flange hose. The rotating wheel frame is rotationally connected to the base support, a plurality of rotating wheel guide wheels are rotationally connected to the rotating wheel frame, and the hose is lapped on the rotating wheel guide wheels; the sliding plate support is arranged on one side of the top of the base support, a lower clamping plate and an upper clamping plate which can be opened and closed are arranged on the sliding plate support, and when the lower clamping plate and the upper clamping plate are closed, a clamping opening for clamping a lower flange of the flange hose is formed. Through the synergistic effect of the base support, the rotating wheel frame and the sliding plate support, the stable guiding and clamping functions of the flange hose are achieved, the labor intensity of workers is effectively reduced, the construction efficiency of lowering and recycling the hose is improved, and meanwhile the operation risk is reduced.

Description

Technical Field

[0001] This utility model relates to the field of marine drilling construction technology, and more specifically to a long-distance mud return hose lowering and recovery device applied to a deep-sea dual-gradient drilling system. Background Technology

[0002] The deep-sea dual-gradient drilling system is a solution for recovering drilling fluid in offshore drilling, effectively addressing the pollution caused by directly discharging drilling fluid into the sea and the problems of increased vessel size and operating costs associated with using risers for drilling fluid recovery. This technology eliminates the use of conventional risers in offshore drilling; the drill pipe is directly exposed to seawater, and a subsea lift pump draws drilling fluid containing cuttings into the wellhead module and returns it to the drilling vessel via a return hose.

[0003] The return hose, serving as the channel for returning drilling fluid and deep mud to the drilling vessel, requires long-distance transport and necessitates multi-section connection for lowering and retrieval. Therefore, developing an auxiliary device for lowering and retrieving the hose using a flanged connection is a pressing issue for those skilled in the art, aimed at reducing manual labor intensity and improving construction efficiency. Utility Model Content

[0004] In view of this, the present invention provides an auxiliary device for the lowering and retrieval of a marine flange-connected hose, which aims to solve the above-mentioned technical problems.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A marine flange-connected hose lowering and retrieval connection auxiliary device includes:

[0007] A base bracket; a lower guide wheel and a front guide wheel are rotatably connected to one side of the base bracket. The lower guide wheel and the front guide wheel are arranged vertically and staggered to form a guide space for restricting and guiding the flange hose.

[0008] A rotating frame is rotatably connected to the base bracket, and a plurality of rotating guide wheels are rotatably connected to the rotating frame. The hose is resting on the rotating guide wheels.

[0009] A skateboard bracket is located on the top side of the base bracket. The skateboard bracket has an openable lower clamping plate and an upper clamping plate. When the lower clamping plate and the upper clamping plate are closed, they form a clamping opening for locking the lower flange of the flange hose.

[0010] Through the above technical solution, this utility model achieves stable guidance and clamping of flange hoses through the synergistic effect of the base bracket, the rotating wheel frame and the sliding plate bracket, effectively reducing the intensity of manual labor, improving the construction efficiency of hose lowering and retrieval, and reducing operational risks.

[0011] Preferably, in the above-mentioned auxiliary device for lowering and retrieving marine flange-connected hoses, the base support includes a base, a lower guide shaft and a front guide shaft are fixed on one side of the base, the lower guide wheel is rotatably connected to the lower guide shaft, and the front guide wheel is rotatably connected to the front guide shaft.

[0012] Preferably, in the above-mentioned auxiliary device for lowering and retrieving marine flange-connected hoses, a rotating shaft is fixed in the middle of the base, and the rotating bracket at the center of the rotating frame is rotatably connected to the rotating shaft.

[0013] Preferably, in the above-mentioned auxiliary device for lowering and retrieving marine flange-connected hoses, the rotating frame is a Y-shaped frame, and the three branches of the Y-shaped frame are of equal length and the angles of adjacent branches are the same. Each branch has a guide wheel shaft fixed at its end, and the rotating guide wheel is rotatably connected to the guide wheel shaft.

[0014] Preferably, in the above-mentioned auxiliary device for lowering and retrieving a marine flange-connected hose, the slide bracket includes a slide frame that is horizontally slidably connected to the base bracket. The slide frame is fixedly connected to the base bracket by a slide frame fixing pin, and the lower clamping plate and the upper clamping plate are slidably connected to the slide frame.

[0015] Preferably, in the above-mentioned auxiliary device for lowering and retrieving marine flange-connected hoses, a lower guide shaft fixing block and an upper guide shaft fixing block are fixed on both sides of the slide frame, a guide shaft is fixed between the lower guide shaft fixing block and the upper guide shaft fixing block, and a plate slider is fixed on the back of the lower plate and the upper plate, and the plate slider is slidably connected to the guide shaft.

[0016] Preferably, in the above-mentioned auxiliary device for lowering and retrieving a marine flange-connected hose, when the lower clamping plate and the upper clamping plate are closed, the lower clamping plate is fixedly limited to the slide frame by the lower clamping plate fixing pin, and the upper clamping plate is fixedly limited to the slide frame by the upper clamping plate fixing pin.

[0017] Preferably, in the above-mentioned auxiliary device for lowering and retrieving marine flange-connected hoses, the clamping opening formed when the lower clamping plate and the upper clamping plate are closed, the guide wheel of the outer ring of the wheel frame, and the guide space formed by the lower guide wheel and the front guide wheel are arranged inclined from high to low.

[0018] Preferably, in the above-mentioned auxiliary device for lowering and retrieving a marine flange-connected hose, the lower flange is connected to the upper flange by flange connecting bolts.

[0019] Preferably, in the above-mentioned auxiliary device for lowering and retrieving a marine flange-connected hose, a flange seal is provided between the lower flange and the upper flange.

[0020] As can be seen from the above technical solution, compared with the prior art, this utility model discloses a marine flange-connected hose lowering and retrieval connection auxiliary device, which has the following beneficial effects:

[0021] 1. Improved construction efficiency: Through the coordinated action of the base bracket, the rotating wheel frame, and the sliding plate bracket, the flange hose is stably guided and clamped, effectively reducing the intensity of manual labor, improving the construction efficiency of hose lowering and retrieval, and reducing operational risks.

[0022] 2. Optimized guiding function: The staggered arrangement of the lower guide wheel and the front guide wheel, as well as the design of multiple guide wheels on the wheel frame, ensures the stability and accuracy of the hose during the guiding process, avoids hose deviation or jamming, and further improves guiding accuracy.

[0023] 3. Enhanced structural stability: The design of the Y-shaped rotating frame and the setting of the rotating shaft give the device good structural stability and symmetry, which can evenly distribute the tension of the hose, ensure the stable placement and guidance of the hose on the rotating guide wheel, and enhance the adaptability and flexibility of the device.

[0024] 4. Improved clamping reliability: The openable lower and upper clamping plates on the slide bracket facilitate the clamping and releasing of the flange hose. The clamping plates are fixed in place by retaining pins, ensuring the stability and firmness of the clamping opening and preventing the hose from loosening or falling off, thus improving the safety and reliability of the device.

[0025] 5. Extended service life: The inclined arrangement of the clamping port, rotating guide wheel and guide space conforms to the natural lowering and retrieval path of the hose, reducing the friction and resistance of the hose during operation, reducing the wear of the device, and thus extending the service life of the device.

[0026] 6. Enhanced sealing performance: The use of flange connection bolts and flange seals ensures a firm connection and sealing performance between the lower and upper flanges, effectively preventing drilling fluid leakage from the flange connection under high pressure, and improving the environmental friendliness and safety of the equipment. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0028] Figure 1 The attached figure is a front view structural schematic diagram of the marine flange connection type hose lowering and retrieval connection auxiliary device provided by this utility model;

[0029] Figure 2 The attached figure is a structural schematic diagram of the rear view of the marine flange connection type hose lowering and retrieval connection auxiliary device provided by this utility model;

[0030] Figure 3 The attached figure is a structural schematic diagram of the main components of the marine flange-connected hose lowering and retrieval connection auxiliary device provided by this utility model;

[0031] Figure 4 The attached figure is a schematic diagram of the flange being continuously lowered according to this utility model.

[0032] in:

[0033] 1-Base bracket; 2-Roller frame; 3-Slide bracket; 4-Flange hose;

[0034] 101-Base; 102-Lower guide shaft; 103-Lower guide wheel; 104-Front guide shaft; 105-Front guide wheel; 106-Spinner shaft; 107-Skateboard frame fixing pin;

[0035] 201-Rotator bracket; 202-Rotator guide wheel; 203-Guide wheel shaft;

[0036] 301-Skateboard frame; 302-Lower clamping plate; 303-Upper clamping plate; 304-Upper clamping plate fixing pin; 305-Lower clamping plate fixing pin; 306-Lower guide shaft fixing block; 307-Clamping plate slider; 308-Guide shaft; 309-Upper guide shaft fixing block;

[0037] 401 - Flange connection bolts; 402 - Upper flange; 403 - Flange seal; 404 - Lower flange; 405 - Hoses. Detailed Implementation

[0038] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0039] See appendix Figure 1 To be continued Figure 3 This utility model discloses an auxiliary device for lowering and retrieving a marine flange-connected hose, comprising:

[0040] Base bracket 1; a lower guide wheel 103 and a front guide wheel 105 are rotatably connected to one side of the base bracket 1. The lower guide wheel 103 and the front guide wheel 105 are arranged in a staggered manner, forming a guide space for restricting and guiding the hose 405 of the flange hose 4.

[0041] A rotating frame 2 is rotatably connected to a base bracket 1. Multiple rotating guide wheels 202 are rotatably connected to the rotating frame 2. A flexible hose 405 is placed on the rotating guide wheels 202.

[0042] The slide bracket 3 is located on the top side of the base bracket 1. The slide bracket 3 has an openable lower clamping plate 302 and an upper clamping plate 303. When the lower clamping plate 302 and the upper clamping plate 303 are closed, they form a clamping port for clamping the lower flange 404 of the flange hose 4.

[0043] To further optimize the above technical solution, the base bracket 1 includes a base 101. A lower guide shaft 102 and a front guide shaft 104 are fixed to one side of the base 101. A lower guide wheel 103 is rotatably connected to the lower guide shaft 102, and a front guide wheel 105 is rotatably connected to the front guide shaft 104. The design of the lower guide shaft 102 and the front guide shaft 104 ensures that the lower guide wheel 103 and the front guide wheel 105 can rotate stably, further optimizing the guiding function of the hose 405, preventing the hose 405 from shifting or jamming during the guiding process, and improving guiding accuracy.

[0044] To further optimize the above technical solution, a rotating shaft 106 is fixed in the middle of the base 101, and the rotating bracket 201 in the center of the rotating frame 2 is rotatably connected to the rotating shaft 106. The setting of the rotating shaft 106 allows the rotating frame 2 to rotate flexibly, enhancing the adaptability and flexibility of the device, and enabling it to better cooperate with the lowering and retraction of the hose 405, thereby improving the stability and reliability of the device.

[0045] To further optimize the above technical solution, the rotating frame 2 is a Y-shaped frame with three branches of equal length and adjacent branches at the same angle. Each branch has a guide wheel shaft 203 fixed to its end, and the rotating guide wheel 202 is rotatably connected to the guide wheel shaft 203. The Y-shaped frame design gives the rotating frame 2 good structural stability and symmetry. The equal length and angle of the three branches ensure even distribution of tension on the hose 405, guaranteeing stable placement and guidance of the hose 405 on the rotating guide wheel 202, further improving guidance accuracy and reliability.

[0046] To further optimize the above technical solution, the skateboard bracket 3 includes a skateboard frame 301 that is horizontally slidably connected to the base bracket 1. The skateboard frame 301 is fixedly connected to the base bracket 1 via a skateboard frame fixing pin 107. A lower clamping plate 302 and an upper clamping plate 303 are slidably connected to the skateboard frame 301. The horizontal slidable connection between the skateboard bracket 3 and the base bracket 1, and the fixation of the skateboard frame 301 via the fixing pin, improves the flexibility of the position adjustment of the skateboard bracket 3. The slidable connection of the lower clamping plate 302 and the upper clamping plate 303 to the skateboard frame 301 facilitates the opening and closing of the clamping plates, improving the clamping and releasing efficiency of the flange hose 4.

[0047] To further optimize the above technical solution, both sides of the slide frame 301 are fixed with a lower guide shaft fixing block 306 and an upper guide shaft fixing block 309. A guide shaft 308 is fixed between the lower guide shaft fixing block 306 and the upper guide shaft fixing block 309. A plate slider 307 is fixed to the back of both the lower clamping plate 302 and the upper clamping plate 303, and the plate slider 307 is slidably connected to the guide shaft 308. The design of the guide shaft 308 provides a stable sliding track for the plate slider 307, making the opening and closing actions of the lower clamping plate 302 and the upper clamping plate 303 smoother and more accurate, further improving the reliability of clamping and releasing the flange hose 4, and extending the service life of the device.

[0048] To further optimize the above technical solution, when the lower clamping plate 302 and the upper clamping plate 303 are closed, the lower clamping plate 302 is fixedly limited to the slide frame 301 by the lower clamping plate fixing pin 305, and the upper clamping plate 303 is fixedly limited to the slide frame 301 by the upper clamping plate fixing pin 304. By fixing the lower clamping plate 302 and the upper clamping plate 303, the stability and firmness of the clamping opening are ensured, preventing the flange hose 4 from loosening or falling off, thus improving the safety and reliability of the device.

[0049] To further optimize the above technical solution, the clamping opening formed when the lower clamping plate 302 and the upper clamping plate 303 are closed, the guide wheel 202 on the outer ring of the rotating frame 2, and the guide space formed by the lower guide wheel 103 and the front guide wheel 105 are arranged at an angle from high to low. The angled arrangement of the clamping opening, the guide wheel 202, and the guide space conforms to the natural lowering and retrieval path of the hose 405, reduces the friction and resistance of the hose 405 during operation, improves the conveying efficiency, and reduces the wear of the device.

[0050] To further optimize the above technical solution, the lower flange 404 is connected to the upper flange 402 via flange connecting bolts 401. The use of flange connecting bolts 401 ensures a secure connection between the lower flange 404 and the upper flange 402, ensuring the sealing and stability of the hose 405 under high pressure, preventing drilling fluid leakage, and improving the safety and reliability of the device.

[0051] To further optimize the above technical solution, a flange seal 403 is provided between the lower flange 404 and the upper flange 402. The flange seal 403 further enhances the sealing performance of the flange connection, effectively preventing drilling fluid from leaking from the flange connection under high pressure, improving the environmental friendliness and safety of the device, and extending the service life of the flange.

[0052] See appendix Figure 4 After the lower flange 404 and upper flange 402 are fixed together by flange connecting bolts 401, the lower clamping plate fixing pin 305 and the upper clamping plate fixing pin 304 are removed respectively. The lower clamping plate 302 slides down to open, and the upper clamping plate 303 slides up to open. The lower flange 404 drives the rotating wheel bracket 201 to rotate around the rotating wheel shaft 106 through the rotating wheel guide wheel 202. The hose 405 is limited by the lower guide wheel 103 and the front guide wheel 105, which enables the lowering and retrieval operation of the offshore flange-connected hose. The offshore flange-connected hose lowering and retrieval connection auxiliary device of this utility model, through a series of optimized designs, not only improves construction efficiency and operational safety, but also enhances the stability and reliability of the device, while extending its service life, providing strong support for the efficient operation of deep-sea dual-gradient drilling systems.

[0053] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. For the apparatus disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the description is relatively simple; relevant parts can be referred to the method section.

[0054] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An offshore flange connected hose let-down and recovery connection aid characterised in that, The utility model relates to a flange hose clamp fixing device, including: The base support (1) one side rotation is connected with lower guide wheel (103) and front guide wheel (105), lower guide wheel (103) and front guide wheel (105) are arranged in up and down staggered, and form the guide space of the hose (405) of restriction and guide flange hose (4); Rotary wheel frame (2) rotation is connected on the base support (1), a plurality of rotary wheel guide wheels (202) are rotationally connected on rotary wheel frame (2), and the hose (405) is lapped on rotary wheel guide wheel (202); The slide plate support (3) is equipped in the top side of base support (1), the slide plate support (3) has the lower clamping plate (302) and upper clamping plate (303) that can open and close, when the lower clamping plate (302) and upper clamping plate (303) are closed, the clamping mouth of the lower flange (404) of flange hose (4) is formed.

2. An offshore flanged hose let-down recovery connection aid according to claim 1, characterised in that, The base support (1) includes base (101), and one side of base (101) is fixed with lower guide shaft (102) and front guide shaft (104), lower guide wheel (103) is rotationally connected on lower guide shaft (102), and front guide wheel (105) is rotationally connected on front guide shaft (104).

3. An offshore flanged hose let-down recovery connection aid according to claim 2, characterised in that, The middle part of base (101) is fixed with rotary wheel shaft (106), and the rotary wheel support (201) of the center of rotary wheel frame (2) is rotationally connected with rotary wheel shaft (106).

4. An offshore flanged hose let-down recovery connection aid according to claim 1, characterised in that, Rotary wheel frame (2) is Y-shaped frame body, and the length of three branches of Y-shaped frame body is equal, and the angle of adjacent branch is same, and the end of each branch is fixed with guide wheel shaft (203), and rotary wheel guide wheel (202) is rotationally connected on guide wheel shaft (203).

5. An offshore flanged hose let-down recovery connection aid according to claim 1, characterised in that, The slide plate support (3) includes slide plate frame (301) that is horizontally slidably connected with base support (1), and slide plate frame (301) is fixedly connected with base support (1) through slide plate frame fixed pin (107), and lower clamping plate (302) and upper clamping plate (303) are slidably connected on slide plate frame (301).

6. An offshore flanged hose let-down recovery connection aid according to claim 5, characterised in that, The both sides of slide plate frame (301) are fixed with guide shaft lower fixed block (306) and guide shaft upper fixed block (309), and guide shaft (308) is fixed between guide shaft lower fixed block (306) and guide shaft upper fixed block (309), and the back of lower clamping plate (302) and upper clamping plate (303) is fixed with clamping plate sliding block (307), and clamping plate sliding block (307) is slidably connected on guide shaft (308).

7. An offshore flanged hose let-down recovery connection aid according to claim 6, characterised in that, When lower clamping plate (302) and upper clamping plate (303) are closed, lower clamping plate (302) is fixedly limited with slide plate frame (301) through lower clamping plate fixed pin (305), and upper clamping plate (303) is fixedly limited with slide plate frame (301) through upper clamping plate fixed pin (304).

8. An offshore flanged hose let-down recovery connection aid according to claim 1, characterised in that, The clamping opening formed when the lower clamping plate (302) and the upper clamping plate (303) are closed, the guide space formed by the runner guide wheel (202) of the outer ring of the runner frame (2) and the lower guide wheel (103) and the front guide wheel (105) are arranged from high to low.

9. An offshore flanged hose let-down recovery connection aid according to claim 1, characterised in that, The upper flange (402) is connected to the lower flange (404) through a flange connecting bolt (401).

10. An offshore flanged hose let-down recovery connection aid according to claim 9, characterised in that, A flange sealing piece (403) is arranged between the lower flange (404) and the upper flange (402).

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