Bell-shaped rotating fluid conveying device

Abstract

The present invention discloses a bell-shaped rotating fluid conveying device, comprising: a rotating joint; a middle rotating body, fixedly connected to an upper bell to form a bell-shaped housing; a middle base, radially movablely connected to the middle rotating body through a slewing bearing, and the bell-shaped housing can perform rotational motion relative to the middle base; the bell-shaped housing and the middle base form a closed chamber, and the rotating joint is arranged in the closed chamber; a driving disk, arranged in the closed chamber; and a driving arm, fixedly connected to the driving disk. The present invention arranges a rotating joint for realizing dynamic and static conversion of fluid conveying in a closed chamber, and while ensuring the sealing of the closed chamber, adopts a movable bell-shaped structure to enable the bell of the closed chamber to rotate freely, thereby ensuring that the moving joint of the rotating joint has sufficient rotational freedom, and further enabling the ship pipeline connected to the moving joint of the rotating joint to smoothly perform rotational motion around the rotating joint.

Description

Technical Field

[0001] The invention relates to a fluid conveying device for marine engineering, in particular to a bell-shaped rotating fluid conveying device. Background Art

[0002] The single-point mooring system refers to an offshore engineering structure that is fixed to the sea through a single mooring point. The structure can make a 360° rotation around the mooring point, thereby making the most of the weathervane effect. In an offshore water operation environment, the structure is always in the position with the minimum resultant load.

[0003] In a single-point mooring system, if the system takes into account fluid transportation, then the fluid transportation device used to achieve dynamic and static conversion of fluid transportation must be the core device of the single-point mooring fluid transportation system. The rotating fluid transportation device is a key device to ensure the continuous and safe transportation of pressurized fluid between the fixed part of the single-point mooring (submarine pipeline or submarine laid hose) and the rotating part (ship). The device has the characteristics of dynamic and intermittent pressure operation, so the reliability of dynamic large-diameter rotary seals has always been the main factor restricting the development of the device. For underwater or submerged environments, the sealing, manufacturing and assembly, maintenance, offshore installation and recovery of the device are more difficult. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a bell-shaped rotary fluid conveying device, which can create a sealed environment for a rotary joint, thereby ensuring that the rotary joint works normally in an underwater or submerged environment.

[0005] In order to solve the above technical problems, the technical solution of the bell-shaped rotating fluid conveying device of the present invention is:

[0006] The invention comprises: a rotary joint 16, wherein the movable ring can rotate relative to the fixed ring; the movable ring is connected to the movable joint, and the fixed ring is connected to the stationary joint; the movable joint and the stationary joint are connected to each other; the movable joint is connected to one end of the rotating part delivery pipeline 2, and the stationary joint is connected to one end of the fixed part delivery pipeline 6; the rotary joint 16 can realize the connection between the rotating part delivery pipeline 2 and the fixed part delivery pipeline 6, thereby forming a fluid delivery pipeline; the rotating part delivery pipeline 2 is used to connect the ship pipeline, and the fixed part delivery pipeline 6 is used to connect the submarine ... The bell-shaped housing 3 is fixedly connected to the upper bell 1 to form a bell-shaped housing; the middle base 5 is movably connected to the middle rotating body 3 through a slewing bearing 19, and the bell-shaped housing can rotate relative to the middle base 5; the bell-shaped housing and the middle base 5 form a closed chamber, and the rotary joint 16 is arranged in the closed chamber; the driving disk 15 is arranged in the closed chamber; the driving disk 15 is fixedly connected to the middle rotating body 3; and the driving arm 30 is fixedly connected to the driving disk 15; the driving arm 30 is fixedly connected to the movable ring of the rotary joint 16.

[0007] In another embodiment, the moving ship transmits force to the middle rotating body 3 through the mooring cable, so that the middle rotating body 3 and the upper bell 1 rotate around the middle base 5 under the action of the mooring cable force; the middle rotating body 3 drives the driving disk 15 to rotate synchronously, and the driving disk 15 drives the moving ring of the rotating joint 16 to rotate around the fixed ring through the driving arm 30, so as to realize the coaxial synchronous rotation of the bell-shaped housing and the moving ring of the rotating joint 16, thereby releasing the torque load generated by the movement of the ship.

[0008] In another embodiment, the radial matching portion between the middle rotor 3 and the middle base 5 is provided with at least two dynamic sealing rings and dynamic sealing rings from top to bottom; the dynamic sealing rings and the dynamic sealing rings are arranged at intervals along the axial direction; and a mud guard ring 25 is provided at the bottom end of the middle rotor 3.

[0009] In another embodiment, the dynamic sealing ring includes an annular sealing ring body 21-1, the cross-section of the sealing ring body 21-1 is rectangular, and the sealing ring body 21-1 forms at least three radially extending sealing lips 21-2 from top to bottom; and / or the dynamic sealing ring includes an annular sealing ring body 22-1, and the upper part of the sealing ring body 22-1 forms a plurality of radially extending external sealing lips 22-3, and the groove of the sealing ring body 22-1 has a plurality of elastic sheets 22-2 built in; the external sealing lips 22-3 correspond to the elastic sheets 22-2.

[0010] In another embodiment, the moving circle of the slewing bearing 19 is fixedly connected to the middle rotating body 3 by fastening bolts, and the fixed circle of the slewing bearing 19 is fixedly connected to the middle base 5 by fastening bolts 33, so that the middle rotating body 3 can rotate relative to the middle base 5.

[0011] In another embodiment, a driving arm insertion hole is opened on the driving disk 15, and one end of the driving arm 30 is fixedly inserted into the driving arm insertion hole; a buffer elastic member 29 is arranged in the driving arm insertion hole, and the buffer elastic member 29 fills the gap between the driving arm insertion hole and the driving arm 30.

[0012] In another embodiment, a slewing bearing fixed ring mounting seat 5-1 is formed on the upper portion of the middle base 5, and the slewing bearing fixed ring mounting seat 5-1 has a slewing bearing fixed ring mounting surface 5-12; the slewing bearing fixed ring mounting seat 5-1 is provided with a plurality of slewing bearing fixed ring fastening bolt holes 5-11 along the circumferential direction, and the fixed ring of the slewing bearing 19 is fixedly connected to the middle base 5 by a fastening bolt 33 penetrated through the slewing bearing fixed ring fastening bolt hole 5-11; a rotary joint fixed ring connecting seat 5-2 is formed on the lower portion of the middle base 5, and the rotary joint fixed ring connecting seat 5-2 has a rotary joint fixed ring mounting surface 5-22; the rotary joint fixed ring connecting seat 5-2 is provided with a plurality of rotary joint fixed ring fastening bolt holes 5-21 along the circumferential direction, and the fixed ring 16-1 of the rotary joint 16 is fixedly connected to the middle base 5 by a fastening bolt 34 penetrated through the rotary joint fixed ring fastening bolt hole 5-21.

[0013] In another embodiment, the middle rotating body 3 is fixedly connected to the upper bell jar 1 at the end surface by fastening bolts 31 .

[0014] In another embodiment, a static sealing ring 20 is provided between the connecting end surfaces of the upper bell jar 1 and the middle rotating body 3 ; and / or a static sealing ring 26 is provided between the connecting end surfaces of the middle base 5 and the lower base 8 .

[0015] In another embodiment, the middle base 5 is fixedly connected to the lower base 8 ; the lower base 8 is disposed on an underwater docking guide body 10 , and the underwater docking guide body 10 is sleeved on an underwater docking installation foundation 14 .

[0016] In another embodiment, the lower base 8 is connected to the underwater docking guide body 10 via a plurality of buffer springs 9 distributed along the circumferential direction.

[0017] The technical effects that can be achieved by the present invention are:

[0018] The present invention arranges a rotary joint for realizing dynamic-static conversion of fluid transportation in a closed chamber. While ensuring the sealing of the closed chamber, a movable bell-shaped structure is adopted to enable the bell of the closed chamber to rotate freely, thereby ensuring that the moving joint of the rotary joint has sufficient rotational freedom, and further enabling the ship pipeline connected to the moving joint of the rotary joint to smoothly rotate around the rotary joint.

[0019] The present invention adopts a sealing type combining a dynamic sealing ring and a dynamic sealing ring between the moving part (i.e., the middle rotating body) and the stationary part (i.e., the middle base) in the closed chamber, and a mud retaining ring is provided at the bottom end of the matching gap between the moving part and the stationary part, thereby ensuring that the rotary joint can still have flexible rotational freedom underwater.

[0020] The rotary joint of the present invention can still have flexible rotational freedom underwater, so the present invention can be used to transport fuel oil for large ships in deep ocean waters.

[0021] The invention has the advantages of simple structure, easy processing, manufacturing and assembly, convenient maintenance and high sealing reliability, and can be used in underwater or submerged environments. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] It should be understood by those skilled in the art that the following description is only intended to schematically illustrate the principles of the present invention, which can be applied in a variety of ways to achieve many different alternative embodiments. These descriptions are only intended to illustrate the general principles of the teachings of the present invention and are not intended to limit the inventive concepts disclosed herein.

[0023] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and, together with the general description above and the detailed description of the drawings that follow, serve to explain the principles of the invention.

[0024] The present invention is further described in detail below with reference to the accompanying drawings and specific embodiments:

[0025] Figure 1 is a schematic diagram of a bell-shaped rotating fluid conveying device of the present invention;

[0026] Figure 2 It is a cross-sectional schematic diagram of the present invention;

[0027] Figure 3 It is a schematic diagram of the rotating part piping system and the driving part of the present invention;

[0028] Figure 4 yes Figure 3 A magnified schematic diagram of part A in FIG.

[0029] Figure 5 yes Figure 3 A magnified schematic diagram of part B in FIG.

[0030] Figure 6 yes Figure 3 The enlarged schematic diagram of the C part in FIG.

[0031] Figure 7 is a schematic cross-sectional view of the upper half of the present invention;

[0032] Figure 8 It is a schematic diagram of the distribution of the functional cabins of the lower base of the present invention;

[0033] Fig. 9 is a schematic diagram of the middle base of the present invention;

[0034] Fig.10 is a cross-sectional schematic diagram of the dynamic seal ring of the present invention;

[0035] Fig.11 It is a cross-sectional schematic diagram of the dynamic sealing ring of the present invention.

[0036] Description of reference numerals in the figures:

[0037] 1 is the upper bell, 2 is the rotating part of the pipeline,

[0038] 3 is the middle rotating body, 4 is the underwater ship connecting hose storage coil,

[0039] 5 is the middle base, 6 is the fixed part of the transmission pipeline,

[0040] 7 is a storage coil for the underwater shore hose, 8 is a lower base,

[0041] 9 is a buffer spring, 10 is an underwater docking guide body,

[0042] 11 is the upper bell housing lifting ear, 12 is the traction ear,

[0043] 13 is the lower base lifting lug, 14 is the underwater docking installation foundation,

[0044] 15 is a driving disc, 16 is a rotary joint,

[0045] 17 is a watertight door, 18 is a quick docking fastening mechanism,

[0046] 19 is a slewing bearing, 20 is a static sealing ring,

[0047] 21 is a first dynamic seal ring, 22 is a first dynamic seal ring,

[0048] 23 is a second dynamic seal ring, 24 is a second dynamic seal ring,

[0049] 25 is a mud guard ring, 26 is a static sealing ring,

[0050] 27 is a machined body, 28 is a steel structure,

[0051] 29 is a buffer elastic member, 30 is a driving arm,

[0052] 31 is a manual / pneumatic double-acting ball valve.

[0053] 21-1 is the sealing ring body, 21-2 is the sealing lip,

[0054] 22-1 is the sealing ring body, 22-2 is the elastic sheet,

[0055] 22-3 is the external sealing lip. DETAILED DESCRIPTION

[0056] In order to make the purpose, technical solution and advantages of the embodiment of the present invention clearer, the technical solution of the embodiment of the present invention will be clearly and completely described in conjunction with the drawings of the embodiment of the present invention. Obviously, the described embodiment is a part of the embodiment of the present invention, not all of the embodiments. Based on the described embodiment of the present invention, all other embodiments obtained by ordinary technicians in the field without creative work belong to the scope of protection of the present invention. Unless otherwise defined, the technical terms or scientific terms used herein should be the common meanings understood by people with ordinary skills in the field to which the present invention belongs. The "first", "second" and similar words used in this article do not indicate any order, quantity or importance, but are only used to distinguish different components. "Including" and similar words mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right", etc. are only used to indicate relative position relationships. When the absolute position of the described object changes, the relative position relationship may also change accordingly.

[0057] like Figures 1 to 7 As shown, the bell-shaped rotating fluid conveying device of the present invention comprises an upper bell 1, a middle rotating body 3, a middle base 5, a lower base 8, an underwater docking guide body 10, and an underwater docking installation foundation 14;

[0058] The upper bell 1 is fixedly connected to the middle rotating body 3 by means of a fastening bolt 31. A static sealing ring 20 is provided between the connecting end surfaces of the upper bell 1 and the middle rotating body 3. The static sealing ring 20 can ensure the sealing between the upper bell 1 and the middle rotating body 3.

[0059] The middle rotating body 3 is sleeved on the top of the middle base 5, and the middle rotating body 3 is movably connected to the middle base 5 through the slewing bearing 19, so as to realize the axial fixation between the middle rotating body 3 and the middle base 5, and the middle rotating body 3 can rotate around the axis relative to the middle base 5; the slewing bearing 19 has a moving circle and a fixed circle, the moving circle of the slewing bearing 19 is connected to the middle rotating body 3 through a fastening bolt, and the fixed circle of the slewing bearing 19 is connected to the middle base 5 through a fastening bolt 33, so that the middle rotating body 3 can rotate relative to the middle base 5, and the upper bell 1 and the middle rotating body 3 form a rotary bell housing;

[0060] The slewing bearing 19 of the present invention is a standard part (standard number JB / T10471-2004), and its working principle is the same as that of the bearing.

[0061] The upper bell jar 1, the middle rotating body 3 and the middle base 5 form a closed chamber, in which a rotary joint 16 is fixedly arranged; the rotary joint 16 has a moving ring and a fixed ring, and the moving ring can rotate relative to the fixed ring; the moving ring is connected to the moving joint, and the fixed ring is connected to the static joint; the moving joint and the static joint are connected to each other; the moving joint is connected to one end of the rotating part delivery pipeline 2, and the static joint is connected to one end of the fixed part delivery pipeline 6; the rotary joint 16 can realize the connection between the rotating part delivery pipeline 2 and the fixed part delivery pipeline 6, thereby forming a fluid delivery pipeline; a manual / pneumatic double-acting ball valve 31 is arranged on the fluid delivery pipeline to control whether the fluid delivery pipeline is connected;

[0062] A driving disk 15 is also provided in the closed chamber, and the driving disk 15 is connected to the driving arm 30; the driving disk 15 can drive the driving arm 30 to rotate; the driving disk 15 is fixedly connected to the middle rotating body 3 by a fastening bolt; as a preferred embodiment, the middle rotating body 3, the moving ring of the slewing bearing 19 and the driving disk 15 are fixedly connected by the same fastening bolt 32; the driving arm 30 is fixedly connected to the moving ring of the rotary joint 16; the rotation of the driving disk 15 can drive the moving joint of the rotary joint 16 and the middle rotating body 3 to rotate synchronously;

[0063] like Figure 7 As shown, two drive arm insertion holes are axially provided on the drive disk 15, and one end of the drive arm 30 is fixedly inserted into the two drive arm insertion holes; a buffer elastic member 29 is provided in the drive arm insertion hole, and the buffer elastic member 29 fills the radial gap between the drive arm insertion hole and the drive arm 30, so as to play a buffering role;

[0064] A radial fit is formed between the middle rotating body 3 and the middle base 5; the radial fit portion between the middle rotating body 3 and the middle base 5 is provided with a first dynamic seal ring 21, a first dynamic seal ring 22, a second dynamic seal ring 23, and a second dynamic seal ring 24 from top to bottom;

[0065] like Fig.10 As shown, the dynamic seal ring 21, 23 includes an annular seal ring body 21-1, the cross section of the seal ring body 21-1 is rectangular, and the upper edge, middle part and lower edge of the seal ring body 21-1 respectively form a sealing lip 21-2 extending in the radial direction, thereby forming a seal ring with a star-shaped cross section;

[0066] Different from the static sealing ring 26 with a circular cross-section, the dynamic sealing rings 21 and 23 of the present invention adopt a rectangular cross-section and form three pairs of sealing lips 21-1 (i.e., radial protrusions) from top to bottom. When the middle rotating body 3 is subjected to the overturning moment, the dynamic sealing rings 21 and 23 of this structure have the function of buffering the radial clearance and coaxial offset between the middle rotating body 3 and the middle base 5, assisting the rotation stability, thereby ensuring the stability of the radial rotation.

[0067] like Fig.11 As shown, the dynamic sealing ring 22, 24 includes an annular sealing ring body 22-1, the interior of the sealing ring body 22-1 is grooved to form a U-shaped cross section; the upper part of the sealing ring body 22-1 is formed with multiple radially extending external sealing lips 22-3 (i.e. radial protrusions), and the grooves of the sealing ring body 22-1 are built with multiple V-shaped elastic sheets 22-2 ( Fig.11 Four elastic sheets 22-2 are shown in FIG.

[0068] Different from the static sealing ring 26 with a circular cross-section, the dynamic sealing rings 22 and 24 of the present invention are provided with an external sealing lip 22-3, and an elastic sheet 22-2 corresponding to the external sealing lip 22-3 is provided in the internal groove, and the two wings of the V-shaped elastic sheet 22-2 are against the external sealing lip 22-3, so that the elastic force of the elastic sheet 22-2 can act on the external sealing lip 22-3, so that the external sealing lips 22-3 of the dynamic sealing rings 22 and 24 can form sufficient sealing force between the middle rotating body 3 and the middle base 5 when the middle rotating body 3 rotates relative to the middle base 5 and is stationary; therefore, the dynamic sealing rings 22 and 24 can prevent the internal pressure of the closed chamber from leaking out, and at the same time ensure that the external pressurized liquid does not leak into the closed chamber.

[0069] like Figure 4 As shown, a mud guard ring 25 is provided at the bottom end of the middle rotating body 3, and the mud guard ring 25 is sleeved on the middle base 5. The mud guard ring 25 can prevent mud and sand from entering the radial matching part between the middle rotating body 3 and the middle base 5; the mud guard ring 25 is composed of an elastic retainer and a wear-resistant rubber elastomer;

[0070] An underwater ship-connecting hose receiving coil 4 is fixedly arranged outside the middle rotating body 3; an underwater ship-connecting hose is wound on the underwater ship-connecting hose receiving coil 4, one end of the underwater ship-connecting hose is connected to the other end of the rotating part delivery pipeline 2, and the other end of the underwater ship-connecting hose is connected to the ship pipeline;

[0071] An underwater shore connection hose storage coil 7 is fixedly arranged outside the lower base 8; an underwater shore connection hose is wound on the underwater shore connection hose storage coil 7, one end of the underwater shore connection hose is connected to the other end of the fixed part of the delivery pipeline 6, and the other end of the underwater shore connection hose is connected to the seabed pipeline or the seabed laying hose;

[0072] The middle base 5 is fixedly connected to the lower base 8; the middle base 5 and the lower base 8 are fixedly connected by fastening bolts and axial static seals, or the middle base 8 and the lower base 8 are fixedly connected by welding;

[0073] The lower base 8 is arranged on the underwater docking guide body 10, and the underwater docking guide body 10 is sleeved on the underwater docking installation foundation 14;

[0074] A static sealing ring 26 is provided between the connecting end surfaces of the middle base 5 and the lower base 8, and the static sealing ring 26 can ensure the sealing between the middle base 5 and the lower base 8;

[0075] The outer edge of the lower base 8 is formed with a machined body 27, and the machined body 27 is a part of the lower base 8, and is used to realize the fixed connection between the lower base 8 and the middle base 5;

[0076] The lower part of the lower base 8 forms a non-connected welded steel structure 28, the interior of the steel structure 28 forms a chamber, and a plurality of watertight doors 17 are arranged in the chamber. The plurality of watertight doors 17 divide the lower base chamber into a plurality of chambers, and a manual operating mechanism is arranged on the watertight doors 17; Figure 8 As shown, the lower base 8 has a docking and locking equipment compartment I, an underwater submersible replacement compartment II, a gas storage / bilge pump compartment III, a battery and control compartment IV, and a central compartment V;

[0077] The lower base 8 is connected to the underwater docking guide body 10 through a plurality of buffer springs 9 distributed along the circumferential direction; during the installation process, when the lower base 8 and the underwater docking guide body 10 are docked underwater, the buffer springs 9 can play a buffering role;

[0078] At least one upper bell housing lifting lug 11 is fixedly provided on the upper bell housing 1; the upper bell housing lifting lug 11 is used to lift the upper bell housing 1;

[0079] A plurality of traction ears 12 are fixedly arranged on the outside of the middle rotor 3 along the circumferential direction, and the middle rotor 3 is connected to the ship through the traction ears 12;

[0080] A plurality of lower base lifting ears 13 are fixedly arranged on the lower base 8;

[0081] In order to realize underwater automatic docking, the lower base 8 is provided with a quick docking fastening mechanism 18 for realizing quick docking between the underwater docking guide body 10 and the underwater docking installation base 14 .

[0082] The working principle of the present invention is as follows:

[0083] The bell-shaped rotating fluid conveying device of the present invention is fixedly installed underwater (e.g., at a water depth of 60 meters) through an underwater docking installation foundation 14, and the fixed part of the conveying pipeline 6 is connected to the submarine pipeline fixedly installed on the seabed or the submarine laying hose through an underwater shore hose, and the rotating part of the conveying pipeline 2 is connected to the ship pipeline floating on the sea through an underwater ship hose;

[0084] Since ships floating on the sea are affected by wind and waves, they are always in motion; the moving ship transmits force to the middle rotor 3 through the mooring cables, so that the middle rotor 3 and the upper bell 1 rotate around the middle base 5 under the action of the mooring cable force; at the same time, the middle rotor 3 drives the driving disk 15 to rotate synchronously, the driving disk 15 drives the driving arm 30, and the driving arm 30 drives the moving ring of the rotary joint 16 to rotate around the fixed ring, thereby realizing the coaxial synchronous rotation of the rotary bell-type housing and the moving ring of the rotary joint 16 to release the torque generated by the movement of the ship.

[0085] In the present invention, the rotary joint 16 is arranged in a closed chamber, and the closed chamber can prevent the rotary joint 16 from being immersed in water, thereby ensuring the normal operation of the rotary joint 16.

[0086] Since it is in deep water during use, the outer wall of the closed chamber needs to withstand a large water pressure; and, to ensure the normal operation of the rotary joint 16, the rotary bell-shaped housing formed by the upper bell 1 and the middle rotor 3 should be able to rotate flexibly. Therefore, the present invention not only needs to ensure the sealing of the closed chamber to prevent water from entering the closed chamber, but also needs to ensure the flexible rotation of the middle rotor 3 relative to the middle base 5. To this end, on the one hand, the present invention provides static sealing rings between the connecting end faces of the upper bell 1 and the middle rotor 3, and between the connecting end faces of the middle base 5 and the lower base 8, and at the same time, two dynamic sealing rings and dynamic sealing rings are provided in the radial matching portion between the middle rotor 3 and the middle base 5, so as to ensure the radial rotation stability of the bell-shaped housing while ensuring that the external pressurized liquid does not leak into the closed chamber.

[0087] like Fig. 9 As shown, a slewing bearing fixed ring mounting seat 5-1 is formed on the upper part of the middle base 5, and the slewing bearing fixed ring mounting seat 5-1 has a slewing bearing fixed ring mounting surface 5-12; the slewing bearing fixed ring mounting seat 5-1 is provided with a plurality of slewing bearing fixed ring fastening bolt holes 5-11 along the circumferential direction, and the fixed ring of the slewing bearing 19 is fixedly connected to the middle base 5 by fastening bolts 33 penetrating through the slewing bearing fixed ring fastening bolt holes 5-11;

[0088] A rotary joint fixed ring connection seat 5-2 is formed at the lower part of the middle base 5, and the rotary joint fixed ring connection seat 5-2 has a rotary joint fixed ring mounting surface 5-22; the rotary joint fixed ring connection seat 5-2 is provided with a plurality of rotary joint fixed ring fastening bolt holes 5-21 along the circumferential direction, and the fixed ring 16-1 of the rotary joint 16 is fixedly connected to the middle base 5 by fastening bolts 34 penetrating through the rotary joint fixed ring fastening bolt holes 5-21;

[0089] The coaxiality and plane verticality of the slewing bearing fixed ring mounting surface 5-12 and the rotary joint fixed ring mounting surface 5-22 are the core to ensure the entire motion relationship.

[0090] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these changes and modifications.

Claims

1. A bell-shaped rotating fluid conveying device, characterized in that: include: A rotary joint (16), wherein a movable ring is capable of performing a rotary motion relative to a fixed ring; the movable ring is connected to a movable joint, and the fixed ring is connected to a stationary joint; the movable joint and the stationary joint are connected to each other; the movable joint is connected to one end of a rotating part delivery pipeline (2), and the stationary joint is connected to one end of a fixed part delivery pipeline (6); the rotary joint (16) is capable of achieving communication between the rotating part delivery pipeline (2) and the fixed part delivery pipeline (6), thereby forming a fluid delivery pipeline; the rotating part delivery pipeline (2) is used to connect to a ship pipeline, and the fixed part delivery pipeline (6) is used to connect to a submarine pipeline; The middle rotating body (3) is fixedly connected to the upper bell housing (1) to form a bell housing; The middle base (5) is movably connected to the middle rotating body (3) via a slewing bearing (19), and the bell-shaped housing can rotate relative to the middle base (5); the bell-shaped housing and the middle base (5) form a closed chamber, and the rotary joint (16) is arranged in the closed chamber; A driving disk (15) is disposed in the closed chamber; the driving disk (15) is fixedly connected to the middle rotating body (3); and A driving arm (30) is fixedly connected to the driving disk (15); the driving arm (30) is fixedly connected to the moving ring of the rotating joint (16); The radial matching portion between the middle rotating body (3) and the middle base (5) is provided with at least two dynamic sealing rings and a dynamic sealing ring from top to bottom; the dynamic sealing ring and the dynamic sealing ring are arranged at intervals along the axial direction; the bottom end of the middle rotating body (3) is provided with a mud guard ring (25); A slewing bearing fixed ring mounting seat (5-1) is formed on the upper part of the middle base (5), and the slewing bearing fixed ring mounting seat (5-1) has a slewing bearing fixed ring mounting surface (5-12); the slewing bearing fixed ring mounting seat (5-1) is provided with a plurality of slewing bearing fixed ring fastening bolt holes (5-11) along the circumferential direction, and the fixed ring of the slewing bearing (19) is fixedly connected to the middle base (5) by fastening bolts (33) passing through the slewing bearing fixed ring fastening bolt holes (5-11); A swivel joint fixed ring connection seat (5-2) is formed at the lower part of the middle base (5), and the swivel joint fixed ring connection seat (5-2) has a swivel joint fixed ring mounting surface (5-22); the swivel joint fixed ring connection seat (5-2) is provided with a plurality of swivel joint fixed ring fastening bolt holes (5-21) along the circumferential direction, and the fixed ring (16-1) of the swivel joint (16) is fixedly connected to the middle base (5) by fastening bolts passing through the swivel joint fixed ring fastening bolt holes (5-21).

2. The bell-shaped rotating fluid conveying device according to claim 1, characterized in that: The moving ship transmits force to the middle rotating body (3) through the mooring cables, so that the middle rotating body (3) and the upper bell (1) rotate around the middle base (5) under the action of the mooring cable force; the middle rotating body (3) drives the driving disk (15) to rotate synchronously, and the driving disk (15) drives the moving ring of the rotating joint (16) to rotate around the fixed ring through the driving arm (30), so that the bell-shaped housing and the moving ring of the rotating joint (16) can rotate coaxially and synchronously, thereby releasing the torque load generated by the movement of the ship.

3. The bell-shaped rotating fluid conveying device according to claim 1, characterized in that: The dynamic sealing ring comprises an annular sealing ring body (21-1), the cross section of the sealing ring body (21-1) is rectangular, and the sealing ring body (21-1) forms at least three sealing lips (21-2) extending radially from top to bottom; And / or the dynamic sealing ring comprises an annular sealing ring body (22-1), a plurality of radially extending external sealing lips (22-3) are formed on the upper part of the sealing ring body (22-1), a plurality of elastic sheets (22-2) are built into the groove of the sealing ring body (22-1); and the external sealing lips (22-3) correspond to the elastic sheets (22-2).

4. The bell-shaped rotating fluid conveying device according to claim 1, characterized in that: The moving circle of the slewing bearing (19) is fixedly connected to the middle rotating body (3) via fastening bolts, and the fixed circle of the slewing bearing (19) is fixedly connected to the middle base (5) via fastening bolts (33), so that the middle rotating body (3) can perform rotational movement relative to the middle base (5).

5. The bell-shaped rotating fluid conveying device according to claim 1, characterized in that: The driving disk (15) is provided with a driving arm insertion hole, and one end of the driving arm (30) is fixedly inserted into the driving arm insertion hole; a buffer elastic member (29) is provided in the driving arm insertion hole, and the buffer elastic member (29) fills the gap between the driving arm insertion hole and the driving arm (30).

6. The bell-shaped rotating fluid conveying device according to claim 1, characterized in that: The middle rotating body (3) is fixedly connected to the upper bell housing (1) at the end surface by means of fastening bolts.

7. The bell-shaped rotating fluid conveying device according to claim 1, characterized in that: The middle base (5) is fixedly connected to the lower base (8); the lower base (8) is arranged on an underwater docking guide body (10), and the underwater docking guide body (10) is sleeved on an underwater docking installation foundation (14).

8. The bell-shaped rotating fluid conveying device according to claim 7, characterized in that: The lower base (8) is connected to the underwater docking guide body (10) via a plurality of buffer springs (9) distributed along the circumferential direction.

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