Split type pipeline cabin-penetrating sealing device and deepwater operation cabin
By designing a split pipe through-cabin sealing device on the sealing door, the overlapping parts are formed by using arc-shaped strips and inclined planes, the problem of poor sealing effect between the sealing door and the pipe is solved, and an efficient sealing effect is achieved.
Patent Information
- Application Number
- CN202510035608.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-09
- Publication Date
- 2025-04-18
Smart Images
Figure CN119844623A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of deep-sea pipeline repair, and in particular to a split-type pipeline penetration sealing device and a deep-water operation cabin. Background Art
[0002] Pipe penetration sealing is an important key technology for deepwater operation cabins and is of great significance to the creation of underwater dry operations. Pipe penetration sealing is mainly used in the fields of marine oil and gas safety, underwater pipeline emergency maintenance, ships, etc. Its main function is to ensure the sealing of the cabin environment to prevent the impact of gas, liquid or external environment on the equipment and personnel in the cabin. Especially in the scenario of underwater pipeline emergency maintenance, this technology is of great significance to the creation of underwater dry environment.
[0003] In the prior art, the sealed door of the gravity-type atmospheric pressure dry cabin has two door panels (left and right or up and down), which are sealed in the middle by bolts. The two door panels that open left and right will deform greatly under the action of water pressure, and will produce relative displacement. The bolts used to restrict the relative displacement will bear a large shear force, which increases the difficulty of sealing between the two door panels. Figure 1 As shown, Figure 1 It is a structural schematic diagram of the sealing part at the sealing door in the prior art; in the prior art, the sealing between the sealing door and the pipeline is completely achieved by the sealing part 100 on the sealing door.
[0004] The applicant has found that the prior art has at least the following technical problems: In the prior art, when the double C-shaped sealing parts 100 are matched, the sealing parts 100 are easily deformed due to extrusion on the inner side of the splicing of the two double C-shaped sealing parts 100, which may cause weak sealing parts (such as Figure 1 The gap in the work cabin is prone to seal failure in the high-pressure environment of the deep sea. Therefore, the sealing effect between the sealing door of the work cabin and the pipeline in the prior art is poor. Summary of the invention
[0005] The purpose of the present invention is to provide a split type pipeline penetration sealing device and a deepwater operation cabin to solve the technical problems in the prior art that the sealing part on the sealing door is easily deformed by pressure and the sealing effect between the sealing door and the pipeline is poor. The preferred technical solutions among the many technical solutions provided by the present invention can produce many technical effects as described below.
[0006] To achieve the above object, the present invention provides the following technical solutions:
[0007] The split-type pipeline penetration sealing device provided by the present invention comprises a sealing door, a first sealing part and a second sealing part respectively fixed on two sealing doors, wherein:
[0008] The sealing door is rotatably connected to the outer wall of the cabin body, the first sealing portion includes a first arc-shaped strip having a first inclined plane, and the second sealing portion includes a second arc-shaped strip having a second inclined plane;
[0009] When the two sealing doors are closed: the two sealing doors are spliced to form a sealing hole, and the first arc strip and the second arc strip are used to seal the pipe passing through the sealing hole; and the first inclined plane and the second inclined plane are fitted to each other, so that the first sealing part and the second sealing part form an overlapping part in the axial direction of the sealing hole.
[0010] Preferably, the first inclined plane is located only on one side of the first arc-shaped strip for docking with the second arc-shaped strip, and the first inclined plane is located at two opposite ends of the first arc-shaped strip;
[0011] The second inclined plane is located only at one side of the second arc-shaped strip for docking with the first arc-shaped strip, and the second inclined plane is located at two opposite ends of the second arc-shaped strip.
[0012] Preferably, the first sealing portion further includes vertical bars, the vertical bars are fixed to opposite ends of the first arc-shaped bar, and the vertical bars are squeezed between the two sealing doors to achieve sealing between the two sealing doors.
[0013] Preferably, an L-shaped lap eaves is provided on the splicing side of the sealed door, the vertical bar is fixed to the horizontal section of the L-shaped lap eaves, the plane where the vertical bar is located is arranged parallel to the plane where the sealed door is located, and when the two sealed doors are closed, the horizontal sections of the L-shaped lap eaves are fitted together, and the vertical bar is squeezed between the two L-shaped lap eaves.
[0014] Preferably, the cabin body has a sealed bulkhead, a pipe-through hole is opened on the sealed bulkhead, the sealed door is rotatably connected to the outer side of the sealed bulkhead, when the two sealed doors are closed, the sealed door is sealedly connected to the sealed bulkhead, and the sealing hole and the pipe-through hole are coaxially arranged.
[0015] Preferably, a sealing ring is fixed to the outer side of the sealing bulkhead, the sealing ring surrounds at least a portion of the pipe through hole, and the sealing ring is used to be sealingly connected to the sealing door.
[0016] Preferably, the sealing ring comprises an arcuate segment and a vertical segment, the vertical segment is fixed to opposite sides of the arcuate segment, the arcuate segment surrounds at least an upper half of the pipe-through hole, and the vertical segment extends to the bottom wall of the cabin body.
[0017] Preferably, the first sealing portion further comprises a vertical bar and a lap bar, wherein the vertical bar is fixed to opposite ends of the first arc-shaped bar, and the vertical bar is squeezed between the two sealing doors to achieve sealing between the two sealing doors;
[0018] The overlapping strip is fixed on the vertical strip, and when the sealing door is closed, the overlapping strip is in compression contact with the sealing ring.
[0019] Preferably, the split-type pipeline penetration sealing device also includes a door body driving device, the sealing door is rotatably connected to the cabin body through a hinge, and the door body driving device is drivingly connected to the sealing door for driving the sealing door to rotate, thereby opening or closing the sealing door.
[0020] The present invention also provides a deep-water operation cabin, comprising a cabin body and the above-mentioned split-type pipeline cabin penetration sealing device.
[0021] Compared with the prior art, the split-type pipeline penetration sealing device and deep-water operation cabin provided by the present invention have the following beneficial effects: when the two sealing doors are closed, the first arc strip and the second arc strip are sealed with the pipeline passing through the sealing hole, and the first inclined plane and the second inclined plane fit each other, so that the first sealing part and the second sealing part form an overlapping part in the axial direction of the sealing hole, so that the contact surfaces of the first sealing part and the second sealing part are inclined surfaces, and the two are in the same plane dimension when in contact, thereby ensuring the continuity of the radial sealing of the pipeline, preventing the first sealing part and the second sealing part from forming gaps due to extrusion at the inner wall of the docking side, resulting in sealing defects, and improving the sealing effect between the sealing door and the pipeline. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0023] Figure 1 It is a structural schematic diagram of a sealing portion at a sealing door in the prior art; in the figure, 100, sealing portion; 200, notch;
[0024] Figure 2 It is a schematic diagram of the overall structure of the deepwater operation cabin of the present invention;
[0025] Figure 3 It is a schematic diagram of the structure at the sealed door;
[0026] Figure 4 It is a schematic diagram of the structure of the sealed bulkhead of the cabin;
[0027] Figure 5 It is a schematic diagram of the structure of the first sealing part and the second sealing part at two sealing doors;
[0028] Figure 6 It is a schematic diagram of the matching structure of the first sealing part and the second sealing part when the sealing door is closed;
[0029] Figure 7 It is a side view of the matching structure of the first sealing part and the second sealing part when the sealing door is closed;
[0030] Figure 8 is a schematic structural diagram of a first sealing portion;
[0031] Fig. 9 is a schematic structural diagram of a second sealing portion;
[0032] Fig.10 is a schematic diagram of the force condition of the first sealing part;
[0033] Fig.11 This is the workflow diagram of the deepwater operation cabin.
[0034] In the figure, 1, sealing door; 11, sealing hole; 12, L-shaped lap eaves; 21, first arc strip; 22, vertical strip; 211, first inclined plane; 23, lap strip; 31, second arc strip; 311, second arc plane; 4, cabin; 41, sealing cabin wall; 42, pipe hole; 5, sealing ring; 51, arc segment; 52, vertical segment; 6, door drive device. DETAILED DESCRIPTION
[0035] To make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be described in detail below. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other implementation methods obtained by ordinary technicians in this field without creative work belong to the scope of protection of the present invention.
[0036] In the description of the present invention, it should be understood that the terms "center", "length", "width", "height", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "side" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In the description of the present invention, unless otherwise specified, "plurality" means two or more.
[0037] See also Figure 1 As shown, Figure 1 1 is a schematic diagram of the structure of the sealing part of the sealing door in the prior art; in the prior art, the sealing between the sealing door and the pipeline is completely achieved by the sealing part 100 on the sealing door. In the prior art, when the double C-shaped sealing part 100 is matched, the sealing part 100 is easily deformed due to extrusion on the inner side of the splicing of the two double C-shaped sealing parts 100, which may cause a weak seal (such as Figure 1 The gap in the work cabin is prone to seal failure in the high-pressure environment of the deep sea. Therefore, the sealing effect between the sealing door of the work cabin and the pipeline in the prior art is poor.
[0038] In response to the above problems, an embodiment of the present invention provides a split pipeline penetration sealing device and a deep-water operation cabin, which ensures the continuity of the radial seal of the pipeline, prevents the first sealing part and the second sealing part from forming gaps on the inner wall of the docking side due to extrusion, resulting in sealing defects, and improves the sealing effect between the sealing door and the pipeline.
[0039] Combine the following Figure 2-Figure 11 The technical solution provided by the present invention is described in more detail.
[0040] Embodiment 1:
[0041] like Figure 2-Figure 11 As shown, the split-type pipeline penetration sealing device provided by the present invention includes a sealing door 1, a first sealing part and a second sealing part respectively fixed on the two sealing doors 1, wherein: the sealing door 1 is rotatably connected to the outer wall of the cabin body 4, the first sealing part includes a first arc strip 21, the first arc strip 21 has a first inclined plane 211, and the second sealing part includes a second arc strip 31, and the second arc strip 31 has a second inclined plane 311; when the two sealing doors 1 are closed: the two sealing doors 1 are spliced to form a sealing hole 11, the first arc strip 21 and the second arc strip 31 are used to seal the pipeline passing through the sealing hole 11; and the first inclined plane 211 and the second inclined plane 311 are fitted with each other, so that the first sealing part and the second sealing part form an overlapping portion in the axial direction of the sealing hole 11.
[0042] Because in the prior art, Figure 1 As shown, the two sealed doors 1 are butted together without any overlapping parts, and the sealing part 100 is squeezed and deformed, so that a gap 200 is easily formed at the joint.
[0043] In the split-type pipeline penetration sealing device of this embodiment, when the two sealing doors 1 are closed, the first arc strip 21 and the second arc strip 31 are sealed with the pipeline passing through the sealing hole 11, and the first inclined plane 211 and the second inclined plane 311 fit each other, so that the first sealing part and the second sealing part form an overlapping part in the axial direction of the sealing hole 11, so that the contact surfaces of the first sealing part and the second sealing part are inclined surfaces, and the two are in the same plane dimension when in contact, thereby ensuring the continuity of the radial sealing of the pipeline, preventing the first sealing part and the second sealing part from forming gaps on the inner wall of the docking side due to extrusion, resulting in sealing defects, and improving the sealing effect between the sealing door 1 and the pipeline.
[0044] As an alternative embodiment, see Figure 8 As shown, the first inclined plane 211 is only located at one side of the first arc strip 21 for docking with the second arc strip 31, and the first inclined plane 211 is located at two opposite ends of the first arc strip 21; see Fig. 9 As shown, the second inclined plane 311 is only located at one side of the second arc-shaped strip 31 for docking with the first arc-shaped strip 21 , and the second inclined plane 311 is located at two opposite ends of the second arc-shaped strip 31 .
[0045] The above structure facilitates forming an overlapping portion at the docking position of the first arc strip 21 and the second arc strip 31. The first arc strip 21 and the second arc strip 31 exceed the dead point position at the circumference, that is, offset the intersection point of the two semicircular arcs, and are compressed and sealed outside the intersection point.
[0046] See also Fig.10 The intersection of the first arc strip 21 and the second arc strip 31 is continuous, and the contact surface of the two sections of the sealing strip is an inclined surface (the first inclined plane 211 and the second inclined plane 311), which increases the contact surface and does not have a weak point. When the sealing door 1 is closed, the first arc strip 21 and the second arc strip 31 at both ends are subjected to symmetrical pressure in the normal direction, which increases the contact stress of the first arc strip 21 and the second arc strip 31 at both ends, so that they will not produce a large deformation when subjected to the tangential force of the pipeline.
[0047] The radial seal between the two sealing doors 1 and the pipeline relies on the arc segments of the first arc strip 21 and the second arc strip 31. The first arc strip 21 and the second arc strip 31 complete the extrusion seal at the intersection of the semicircles, i.e., the right side of the "dead point". The contact surface is an inclined surface, so that the two sealing strips are in the same plane dimension when in contact, ensuring the continuity of the radial seal of the pipeline.
[0048] When the left sealing door 1 starts to close and contact the outer wall of the pipeline, the first arc strip 21 and the second arc strip 31 will begin to deform. If the deformation is too large, the sealing strip may be damaged and the sealing accuracy may be affected. The first arc strip 21 (left side) needs to predict the deformation of the sealing strip in advance, and close the second arc strip 31 (right side) synchronously or slightly later, so that the first arc strip 21 and the second arc strip 31 can cooperate to ensure the sealing quality.
[0049] As an alternative embodiment, see Figure 5 and Figure 8 As shown, the first sealing portion further includes a vertical strip 22 , which is fixed to opposite ends of the first arc strip 21 , and is squeezed between the two sealing doors 1 to achieve sealing between the two sealing doors 1 .
[0050] The first sealing part is a composite of the vertical strip 22 and the first arc strip 21, and the second sealing part is an arc. The radial sealing of the sealing door 1 is sealed by the arc sealing strip (the first arc strip 21 and the second arc strip 31), and the sealing outside the arc is achieved by the two sealing doors 1 squeezing the straight vertical strip 22, thereby improving the sealing effect.
[0051] As an alternative embodiment, see Figure 7 As shown, in this embodiment, an L-shaped lap eave 12 is provided on the splicing side of the sealed door 1, and a vertical bar 22 is fixed to the horizontal section of the L-shaped lap eave 12. The plane where the vertical bar 22 is located is arranged parallel to the plane where the sealed door 1 is located. When the two sealed doors 1 are closed, the horizontal sections of the L-shaped lap eave 12 are fitted together, and the vertical bar 22 is squeezed between the two L-shaped lap eaves 12.
[0052] The matching position of the two sealed doors 1 is an L-shaped complementary match through the L-shaped overlap eaves 12, which maximizes the contact surface of the vertical strip 22 and increases the contact area with the vertical strip 22. The sealing structure is optimized, and only the vertical strip 22 is needed to achieve mutual sealing of the two sealed doors 1 outside the arc.
[0053] In this embodiment, a corresponding sealing structure is also provided between the sealing door 1 and the cabin body 4 to ensure the sealing effect between the sealing door 1 and the cabin body 4 .
[0054] See also Figure 3 and Figure 4 As shown, the cabin body 4 of this embodiment has a sealed bulkhead 41, on which a pipe hole 42 is opened, and a sealed door 1 is rotatably connected to the outer side of the sealed bulkhead 41. When the two sealed doors 1 are closed, the sealed door 1 is sealed and connected to the sealed bulkhead 41, and the sealing hole 11 and the pipe hole 42 are coaxially arranged.
[0055] The sealing door 1 and the sealing bulkhead 41 are sealed together, and compared with the structure in which only the sealing door 1 is provided on the cabin body 4, an additional sealing barrier is added between the sealing door 1 and the sealing bulkhead 41, thereby improving the sealing effect. In addition, a pipe penetration hole 42 is provided on the sealing bulkhead 41, and the pipeline passes through the sealing hole 11 and the pipe penetration hole 42 in sequence, and the setting of the sealing bulkhead 41 does not affect the normal pipe penetration operation.
[0056] As an alternative embodiment, see Figure 3 and Figure 4 As shown, a sealing ring 5 is fixed to the outer side of the sealing bulkhead 41 , and the sealing ring 5 surrounds at least a portion of the pipe-through hole 42 . The sealing ring 5 is used for sealing connection with the sealing door 1 .
[0057] When the sealing door 1 is closed to the maximum limit, the sealing door 1 is parallel to the sealing bulkhead 41, that is, the sealing door 1 squeezes the sealing strip along the normal direction of the sealing bulkhead 41, and the sealing strip fills the gap between the sealing door 1 and the bulkhead after deformation, forming a sealing loop to achieve sealing.
[0058] As an alternative embodiment, see Figure 4 As shown, the sealing ring 5 includes an arc segment 51 and a vertical segment 52 . The vertical segment 52 is fixed to opposite sides of the arc segment 51 . The arc segment 51 surrounds at least the upper half of the tube hole 42 . The vertical segment 52 extends to the bottom wall of the cabin body 4 .
[0059] A U-shaped sealing ring 5 is used between the sealing door 1 and the sealing bulkhead 41 , and the U-shaped sealing ring 5 is fixed by a corresponding U-shaped groove on the sealing bulkhead 41 .
[0060] Experiments have shown that if the sealing door 1 is in direct contact with the sealing ring 5, the two are made of different materials and the sealing effect is slightly poor.
[0061] For the above questions, see Figure 8 As shown, the first sealing portion of this embodiment also includes a vertical strip 22 and a lap strip 23. The vertical strip 22 is fixed to the opposite ends of the first arc strip 21. The vertical strip 22 is squeezed between the two sealing doors 1 to achieve sealing between the two sealing doors 1; the lap strip 23 is fixed on the vertical strip 22. When the sealing door 1 is closed, the lap strip 23 is squeezed and contacted with the sealing ring 5.
[0062] The overlapping strip 23 on the first sealing portion realizes a sealing circuit between the sealing doors 1 and a sealing circuit between the sealing doors 1 and the sealing bulkhead 41, forming a closed loop of the two sealing circuits.
[0063] When the sealing door 1 is closed, in order to form a complete sealed closed loop, the two sealing loops need to be overlapped. There is a height difference between the sealing loops at both ends in the dimension of the normal line of the sealing bulkhead 41. Therefore, a lap strip 23 is set on the vertical strip 22 as required. An L-shaped lap strip 23 is used here. The two are connected in one piece. Through the cooperation of the two sealing doors 1, the corresponding sealing strips are deformed according to the predetermined conditions and contact and cooperate with each other. Relying on the closing process of the sealing door 1, the L-shaped lap strip 23 is pressed to realize pipeline sealing, a sealed closed loop and synchronous sealing between the sealing door 1 and the cabin 4.
[0064] As an alternative embodiment, see Figure 1 As shown, the split-type pipeline penetration sealing device also includes a door body driving device 6. The sealing door 1 is rotatably connected to the cabin body 4 through a hinge. The door body driving device 6 is drivingly connected to the sealing door 1 and is used to drive the sealing door 1 to rotate, thereby opening or closing the sealing door 1.
[0065] The door driving device 6 can be a hydraulic cylinder, a hydraulic motor, etc. in the prior art, which will not be described in detail here.
[0066] In this embodiment, the sealing door 1 is driven by a hydraulic motor, and the hydraulic circuit control is integrated into the control module of the sealed cabin. The two sealing doors 1 are driven by two hydraulic motors and open and close toward each other along the movable hinges, and the sealing strip is located at the interactive part of the two sealing doors 1. The opening and closing movement is a circular movement. For this design, the deformation of the sealing ring 5 in two dimensions can be controlled. One is the clamping seal for the radial direction of the pipeline, that is, when the sealing door 1 is fully closed, the uniform sealing force along the radial direction of the pipeline is achieved through the preset phase change to achieve the sealing effect; the other is the movement in the vertical direction of the sealing bulkhead 41. This movement can ensure the maximum compression of the U-shaped sealing ring 5, and at the same time realize the closed-loop connection of the two parts of the sealing ring 5, ensuring the sealing quality between the sealing door 1 and the bulkhead and the pipeline.
[0067] The right sealing door 1 predicts the deformation of the sealing strip in advance, and closes the left sealing door 1 synchronously or slightly later, so that the two sealing strips are matched, and the axial and radial deformation of the sealing ring 5 is controlled to ensure the sealing quality.
[0068] The door driving device 6 drives the two sealing doors 1 to open or close. When the two sealing doors 1 are closed, first, the sealing between the two sealing doors 1 can be achieved through the vertical strip 22. Second, the sealing between the sealing door 1 and the pipeline is achieved through the first arc strip 21 and the second arc strip 31, and the first arc strip 21 and the second arc strip 31 complete the extrusion seal at the intersection of the semicircles, that is, on the right side of the "dead point". The contact surface is an inclined surface, so that the two sealing strips are in the same plane dimension when in contact, ensuring the continuity of the radial seal of the pipeline. Third, the sealing between the sealing door 1 and the sealing bulkhead 41 is achieved through the sealing ring 5, adding another sealing barrier. Fourth, the closure of the two sealing loops is achieved through the lap strip 23 to improve the sealing effect.
[0069] The beneficial effects of the split-type pipeline penetration sealing device of this embodiment are as follows:
[0070] 1. Split dead point-free seal: The split first arc strip 21 and the second arc strip 31 optimize the sealing structure and ensure the contact area of the sealing strip. The offset design solves the "dead point" problem in the through-cabin seal and ensures the radial sealing of the pipeline.
[0071] 2. The deformation of the first sealing part and the second sealing part is controllable: the closing rhythm of the sealing doors 1 on both sides is similar, ensuring that the first arc strip 21 will not produce excessive deformation during the back-front extrusion, causing damage to the sealing strip. At the same time, the controllable deformation of the sealing strip ensures the compression amount in the radial sealing direction, improves the sealing accuracy, and has reliable sealing performance.
[0072] Embodiment 2:
[0073] See also Figure 1 As shown, this embodiment provides a deep-water operation chamber, including a chamber body 4 and the above-mentioned split-type pipeline penetration sealing device.
[0074] See also Fig.11 , when the deepwater operation cabin of this embodiment is working:
[0075] (1) The transport vehicle lowers the underwater high-pressure repair operation cabin to the vicinity of the pipeline to be repaired. The operation cabin lands on the seabed and conducts pre-operation self-inspection preparations.
[0076] (2) The door driving device 6 drives the sealing doors 1 to close simultaneously or the right door lags behind according to the predicted deformation, so as to ensure that the deformation of the sealing ring 5 during the sealing process is controllable and the service life of the sealing ring 5 is guaranteed.
[0077] (3) The door driving device 6 continuously supplies high-pressure oil in the locked state according to the design requirements to ensure a constant compression amount of the sealing strip and ensure the sealing effect.
[0078] (4) After the operation is completed, the door driving device 6 is reversed according to the specified speed and the specified operation sequence to open the sealing door 1. The sealing door 1 is opened to the initial limit position to ensure that the pipeline can be removed smoothly.
[0079] In the description of this specification, specific features, structures or characteristics may be combined in an appropriate manner in any one or more embodiments or examples.
[0080] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.
[0081] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.
Claims
1. A split type pipeline penetration sealing device, characterized in that: It comprises a sealing door, a first sealing part and a second sealing part respectively fixed on the two sealing doors, wherein: The sealing door is rotatably connected to the outer wall of the cabin body, the first sealing portion includes a first arc-shaped strip having a first inclined plane, and the second sealing portion includes a second arc-shaped strip having a second inclined plane; When the two sealing doors are closed: the two sealing doors are spliced to form a sealing hole, and the first arc strip and the second arc strip are used to seal the pipe passing through the sealing hole; and the first inclined plane and the second inclined plane are fitted to each other, so that the first sealing part and the second sealing part form an overlapping part in the axial direction of the sealing hole.
2. The split type pipeline penetration sealing device according to claim 1 is characterized in that: The first inclined plane is located only on one side of the first arc-shaped strip for docking with the second arc-shaped strip, and the first inclined plane is located at two opposite ends of the first arc-shaped strip; The second inclined plane is located only at one side of the second arc-shaped strip for docking with the first arc-shaped strip, and the second inclined plane is located at two opposite ends of the second arc-shaped strip.
3. The split type pipeline penetration sealing device according to claim 1, characterized in that: The first sealing portion further comprises a vertical bar, wherein the vertical bar is fixed to opposite ends of the first arc-shaped bar, and the vertical bar is squeezed between the two sealing doors to achieve sealing between the two sealing doors.
4. The split type pipeline penetration sealing device according to claim 3 is characterized in that: An L-shaped lap eave is provided on the splicing side of the sealed door, the vertical bar is fixed to the horizontal section of the L-shaped lap eave, the plane where the vertical bar is located is arranged parallel to the plane where the sealed door is located, and when the two sealed doors are closed, the horizontal sections of the L-shaped lap eaves are fitted together, and the vertical bar is squeezed between the two L-shaped lap eaves.
5. The split type pipeline penetration sealing device according to claim 1, characterized in that: The cabin body has a sealed bulkhead, a pipe penetration hole is opened on the sealed bulkhead, the sealed door is rotatably connected to the outer side of the sealed bulkhead, when the two sealed doors are closed, the sealed door is sealed and connected to the sealed bulkhead, and the sealing hole and the pipe penetration hole are coaxially arranged.
6. The split type pipeline penetration sealing device according to claim 5, characterized in that: A sealing ring is fixed on the outer side of the sealing bulkhead, the sealing ring surrounds at least a portion of the pipe penetration hole, and the sealing ring is used for sealing connection with the sealing door.
7. The split type pipeline penetration sealing device according to claim 6, characterized in that: The sealing ring includes an arc segment and a vertical segment, wherein the vertical segment is fixed to opposite sides of the arc segment, the arc segment surrounds at least the upper half of the pipe-through hole, and the vertical segment extends to the bottom wall of the cabin body.
8. The split type pipeline penetration sealing device according to claim 6, characterized in that: The first sealing portion further comprises a vertical bar and a lap bar, wherein the vertical bar is fixed to opposite ends of the first arc-shaped bar, and the vertical bar is squeezed between the two sealing doors to achieve sealing between the two sealing doors; The overlapping strip is fixed on the vertical strip, and when the sealing door is closed, the overlapping strip is in compression contact with the sealing ring.
9. The split type pipeline penetration sealing device according to claim 1, characterized in that: The split-type pipeline penetration sealing device also includes a door body driving device, the sealing door is rotatably connected to the cabin body through a hinge, and the door body driving device is drivingly connected to the sealing door for driving the sealing door to rotate, thereby opening or closing the sealing door.
10. A deepwater operation cabin, characterized in that: It comprises a cabin body and a split-type pipeline penetration sealing device as described in any one of claims 1-9.