CN115183070B - Pressure balance type ball sleeve type deformation compensation device and system for sea pipeline - Google Patents
Pressure balance type ball sleeve type deformation compensation device and system for sea pipeline Download PDFInfo
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- CN115183070B CN115183070B CN202210756478.1A CN202210756478A CN115183070B CN 115183070 B CN115183070 B CN 115183070B CN 202210756478 A CN202210756478 A CN 202210756478A CN 115183070 B CN115183070 B CN 115183070B
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- 238000007789 sealing Methods 0.000 claims description 32
- 238000006073 displacement reaction Methods 0.000 description 6
- 239000007788 liquid Substances 0.000 description 4
- 230000007547 defect Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000003044 adaptive effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 101100042630 Caenorhabditis elegans sin-3 gene Proteins 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L27/00—Adjustable joints, Joints allowing movement
- F16L27/02—Universal joints, i.e. with mechanical connection allowing angular movement or adjustment of the axes of the parts in any direction
- F16L27/04—Universal joints, i.e. with mechanical connection allowing angular movement or adjustment of the axes of the parts in any direction with partly spherical engaging surfaces
- F16L27/047—Universal joints, i.e. with mechanical connection allowing angular movement or adjustment of the axes of the parts in any direction with partly spherical engaging surfaces held in place by a screwed member having an internal spherical surface
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L23/00—Flanged joints
- F16L23/16—Flanged joints characterised by the sealing means
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L27/00—Adjustable joints, Joints allowing movement
- F16L27/02—Universal joints, i.e. with mechanical connection allowing angular movement or adjustment of the axes of the parts in any direction
- F16L27/04—Universal joints, i.e. with mechanical connection allowing angular movement or adjustment of the axes of the parts in any direction with partly spherical engaging surfaces
- F16L27/053—Universal joints, i.e. with mechanical connection allowing angular movement or adjustment of the axes of the parts in any direction with partly spherical engaging surfaces held in place by bolts passing through flanges
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L27/00—Adjustable joints, Joints allowing movement
- F16L27/02—Universal joints, i.e. with mechanical connection allowing angular movement or adjustment of the axes of the parts in any direction
- F16L27/04—Universal joints, i.e. with mechanical connection allowing angular movement or adjustment of the axes of the parts in any direction with partly spherical engaging surfaces
- F16L27/06—Universal joints, i.e. with mechanical connection allowing angular movement or adjustment of the axes of the parts in any direction with partly spherical engaging surfaces with special sealing means between the engaging surfaces
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L27/00—Adjustable joints, Joints allowing movement
- F16L27/12—Adjustable joints, Joints allowing movement allowing substantial longitudinal adjustment or movement
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Joints Allowing Movement (AREA)
Abstract
The invention discloses a pressure balance type spherical sleeve type deformation compensation device for a sea pipeline and a system thereof. The pressure balance type ball sleeve type deformation compensation device for the sea pipeline system has the advantages of small size and light weight in the structure of the compensation device.
Description
Technical Field
The invention relates to the technical field of auxiliary structures of sea pipeline systems, in particular to a pressure balance type ball sleeve type deformation compensation device for a sea pipeline and a system thereof.
Background
After the underwater vehicle realizes the deep technology, the structural deformation and the pipeline system deformation are mutually coupled and amplified, and the pipeline system deformation is coordinated and compensated or the design is unreasonable, so that accidents such as pipeline damage and leakage, sealing surface damage, device clamping stagnation and the like can be possibly caused, and even serious casualties can be caused. The underwater vehicle large-depth deformation coordination technology is one of key technologies directly related to safety and reliability of the underwater vehicle.
Aiming at the problem, the common practice of the existing sea pipeline system is to adopt a displacement compensation device to realize pipeline deformation coordination under large depth, but the most widely applied large-depth pipeline displacement compensation device is in a corrugated pipe or pressure balance type corrugated pipe compensation form, and the defects of large size, heavy weight, complex weight and difficult operation exist: the multi-layer thin-wall corrugated pipe is large in appearance, heavy in weight, complex in structure and difficult in process, and is easy to deform or crack when being particularly resistant to 5.0 MPa.
Disclosure of Invention
The main purpose of the invention is to provide a pressure balance type ball sleeve type deformation compensation device for a sea pipeline system, which aims at simplifying the structure of the compensation device, and meanwhile, the device is small in size and light in weight.
In order to achieve the above purpose, the invention provides a pressure balance type spherical sleeve deformation compensation device for a sea pipeline, which comprises a flange spherical sleeve, a left hemisphere, a right hemisphere, a slip ring and a pressure sleeve, wherein,
The flange ball sleeve is connected with the pressing sleeve to jointly form a rotating cavity, the left hemisphere and the right hemisphere are contained in the rotating cavity and can rotate relative to the rotating cavity, a hollow channel for the main pipeline to be inserted is formed on the inner side of the left hemisphere and the inner side of the right hemisphere, a sealing structure is arranged between the outer side wall of the left hemisphere and the inner side wall of the flange ball sleeve, a sealing structure is arranged between the outer side wall of the right hemisphere and the inner side wall of the pressing sleeve, an annular cavity is formed on the mutually opposite side surfaces of the left hemisphere and the right hemisphere, and the slip ring is located inside the annular cavity and is used for being sleeved outside the main pipeline.
Preferably, the left hemisphere includes first rotation portion and first supporting part, and the lateral wall of first rotation portion is spherical structure, and the lateral wall of first supporting part is cylindrical structure, and the inside of left hemisphere has been seted up first round hole and the second round hole of coaxial setting, and the diameter of second round hole is greater than the diameter of first round hole, and second round hole and first round hole junction form the step face in order to carry out spacingly to the tip of trunk line.
Preferably, the right hemisphere includes second rotation portion and second supporting part, and the lateral wall of second rotation portion is spherical structure, and the lateral wall of second supporting part is cylindrical structure, and the first supporting part is close to and is seted up flutedly on right hemisphere one side, and the tip of second supporting part inserts in the recess of first supporting part, and the inside wall of second supporting part forms annular cavity.
Preferably, the outer side of the second supporting part is convexly provided with a connecting part with a circular ring structure, and the connecting part is abutted with the inner side wall of the pressing sleeve.
Preferably, annular grooves for installing the sealing rings are formed in the first rotating part and the second rotating part.
Preferably, a third round hole and a fourth round hole which are coaxially arranged are formed in the right hemisphere, the diameter of the third round hole is larger than that of the fourth round hole, the diameter of the first round hole is the same as that of the fourth round hole, the first round hole and the fourth round hole are in contact with the outer side wall of the main pipeline, and an annular cavity is formed in the inner space of the third round hole.
Preferably, annular grooves for installing the sealing rings are formed in the second round hole and the fourth round hole.
Preferably, a check ring and a rubber sealing ring are arranged between the slip ring and the right hemisphere.
The invention further provides a pressure balance type spherical sleeve type deformation compensation system for the sea pipeline, which comprises the pressure balance type spherical sleeve type deformation compensation device for the sea pipeline and a main pipeline, wherein the head of the main pipeline is inserted into a channel formed by a left hemisphere and a right hemisphere, and a slip ring is fixed outside the main pipeline.
Preferably, the right hemisphere, the slip ring and the outer side wall of the main pipeline form an annular balance cavity, and a through hole communicated with the annular balance cavity is formed in the side wall of the main pipeline.
The pressure balance type spherical sleeve type deformation compensation system for the sea pipeline has the following beneficial effects:
(1) The device solves the defects of large, heavy, complex and difficult of the existing pipeline displacement compensation device, and has the advantages of compact structure, small size, light weight, strong adaptability and the like compared with other corrugated pipe compensation devices with equal diameters;
(2) Meanwhile, the multi-degree-of-freedom pipeline compensation capability is provided, and the compensation requirements of most pipelines can be met;
(3) The design principle of the device has wider application field, and can be applied to various liquid media and gas-liquid mixed media through the change of materials;
(4) The device has high self structural strength, and can be applied to pipeline displacement compensation involving alternating pressure and alternating temperature under various paths through an adaptive design.
Drawings
FIG. 1 is a schematic diagram of a pressure balanced ball-and-socket type deformation compensation system for a sea pipeline according to the present invention;
Fig. 2 is a schematic diagram of the radial compensation principle of the pressure balance ball-sleeve type deformation compensation system for the sea pipeline according to the invention.
In the figure, 1, a flange ball sleeve, 2, a left hemisphere, 3, a right hemisphere, 4, a sealing structure, 5, a pressing sleeve, 6, a main pipeline, 7, a threaded flange, 8, a slip ring, 9 and a bolt.
The achievement of the objects, functional features and advantages of the present invention will be further described with reference to the accompanying drawings, in conjunction with the embodiments.
Detailed Description
It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
It should be noted that, in the description of the present invention, the terms "transverse", "longitudinal", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
The invention provides a pressure balance type spherical sleeve type deformation compensation system for a sea pipeline.
Referring to fig. 1, in the preferred embodiment, a pressure balance type ball sleeve type deformation compensation system for a sea pipeline comprises a pressure balance type ball sleeve type deformation compensation device for the sea pipeline, and further comprises a main pipeline 6, wherein the head of the main pipeline 6 is inserted into a channel formed by a left hemisphere 2 and a right hemisphere 3, and a slip ring 8 is fixed outside the main pipeline 6. The pressure balance type ball sleeve type deformation compensation device for the sea pipeline comprises a flange ball sleeve 1, a left hemisphere 2, a right hemisphere 3, a slip ring 8 and a pressure sleeve 5, wherein,
The flange ball sleeve 1 and the pressing sleeve 5 are connected to form a rotating cavity together (the rotating cavity is provided with a part spherical cavity, so that the left ball sleeve 2 and the right ball sleeve 3 can be partially rotated, the rotating cavity is limited by the structure of the rotating cavity, and the rotating angle is not too large because the rotating cavity is not the whole ball, the left ball sleeve 2 and the right ball sleeve 3 are accommodated in the rotating cavity and can rotate relative to the rotating cavity, the inner sides of the left ball sleeve 2 and the right ball sleeve 3 jointly form a hollow channel for the main pipe 6 to be inserted, a sealing structure 4 is arranged between the outer side wall of the left ball sleeve 2 and the inner side wall of the flange ball sleeve 1, a sealing structure 4 is arranged between the outer side wall of the right ball sleeve 3 and the inner side wall of the pressing sleeve 5, mutually opposite sides of the left ball sleeve 2 and the right ball sleeve 3 are provided with an annular cavity, and the slip ring 8 is positioned inside the annular cavity and is used for being sleeved outside the main pipe 6.
The end part of the main pipeline 6, which is away from the pressure balance type spherical sleeve type deformation compensation device, is sleeved with a threaded flange 7. A sealing ring is arranged between the main pipeline 6 and the threaded flange 7.
Specifically, the left hemisphere 2 includes first rotation portion and first supporting part, and the lateral wall of first rotation portion is spherical structure, and the lateral wall of first supporting part is cylindrical structure, and the inside of left hemisphere 2 has been seted up first round hole and the second round hole of coaxial setting, and the diameter of second round hole is greater than the diameter of first round hole, and second round hole and first round hole junction form the step face in order to carry out spacingly to the tip of trunk line 6.
The axial movement space is reserved in the device through the length setting of the second round hole, so that the axial compensation function of the main pipeline 6 is realized, and in the embodiment, the axial compensation amount of the main pipeline 6 reaches +/-11 mm, which is far better than 17mm of a corrugated pipe compensation device bearing 0.6MPa under the same drift diameter.
Specifically, the flange ball sleeve 1 is connected with the pressing sleeve 5 through the bolts 9 to form a part spherical space, the left hemisphere 3, the right hemisphere 3 and the main pipeline 6 can swing in the part spherical space, the swing angle is larger than +/-3 degrees, the pipeline angle compensation function is realized, and the angle is far better than 1 degree of a corrugated pipe compensation device bearing 0.6MPa under the same path. The main pipe 6 can also rotate along the axis to realize the tangential torsion compensation function, and the existing corrugated pipe pressure balance type deformation compensation device cannot twist.
The right hemisphere 3 includes second rotation portion and second supporting part, and the lateral wall of second rotation portion is spherical structure, and the lateral wall of second supporting part is cylindrical structure, and set up flutedly on the first supporting part is close to right hemisphere 3 one side, and the tip of second supporting part inserts in the recess of first supporting part, and the inside wall of second supporting part forms annular cavity.
Further, a connecting part with a circular ring structure is convexly arranged on the outer side of the second supporting part, and the connecting part is abutted against the inner side wall of the pressing sleeve 5. The region of the second support part, except the connecting part, forms an annular space together with the press sleeve 5.
Further, annular grooves for installing sealing rings are formed in the first rotating part and the second rotating part. Two annular grooves are formed in the first rotating part and the second rotating part, a rubber-plastic composite ring is arranged in the annular grooves, and the rubber-plastic composite ring has good elasticity and wear resistance and is suitable for low-speed rotary motion sealing between the spherical surfaces of the spherical sleeve compensation devices.
Through the clearance seal between first rotation portion and second rotation portion and the ball cover, reduce the clearance as far as possible under the nimble prerequisite of guaranteeing the sphere rotation.
In this embodiment, the inside of right hemisphere 3 has seted up coaxial third round hole and the fourth round hole that sets up, and the diameter of third round hole is greater than the diameter of fourth round hole, and the diameter of first round hole is the same with the diameter of fourth round hole, and first round hole and fourth round hole contact with the outer lateral wall of trunk line 6, and third round hole inner space forms annular cavity.
In this embodiment, annular grooves for installing the sealing ring are formed in the second round hole and the fourth round hole.
Further, a check ring and a rubber sealing ring are arranged between the slip ring 8 and the right hemisphere 3. Specifically, a check ring and a rubber sealing ring are arranged between the slip ring 8 and the inner side wall of the second supporting part (namely, the position of the third round hole). Two grooves are formed in the slip ring 8, one groove is used for installing a check ring, the friction coefficient of the check ring is about 20% of that of the rubber sealing ring, the friction resistance of the slip ring 8 and the main pipeline 6 in movement is reduced, and the other groove is used for installing the rubber sealing ring, so that the friction resistance is reduced.
Because sliding seals are also arranged between the slip ring 8 and the right hemisphere 3 and between the main pipeline 6 and the left hemisphere 3 and the right hemisphere 3, two grooves are formed in the slip ring 8 to ensure reliable sealing and flexible movement of the main pipeline 6.
Further, the right hemisphere 3, the slip ring 8 and the outer side wall of the main pipe 6 form an annular balance cavity, and a through hole communicated with the annular balance cavity is formed in the side wall of the main pipe 6. The slip ring 8 is welded to the outside of the main pipe 6. When the main pipe 6 moves relative to the pressure balance type spherical sleeve deformation compensation device, the slip ring 8 is driven to move together.
The slip ring 8 divides the annular balance cavity into a left part and a right part, the right side is communicated with the inside of the main pipeline 6 to form a pressure balance area, and when the annular cross section pi (R 2-r2) =the cross section pi R 2 of the inner pipeline between the inner pipeline and the outer pipeline in the pressure balance area, the hydraulic pressure born by the pressure balance area is equal to the acting force born by the inner pipeline, so that the acting force generated by the pressure in the pipeline is eliminated.
In this embodiment, the pressure balance area is designed on the right hemisphere 3, so that abrasion or engagement phenomenon of the sphere due to excessive contact pressure is prevented.
The opening on the right side of the pressing sleeve 5 is larger than the outer diameter of the main pipeline 6, and the size of the opening is flexibly set according to the size of the compensation quantity.
When the pressure balance type spherical sleeve deformation compensation device is installed, firstly, a slip ring 8 is welded outside a main pipeline 6, then, a left hemisphere 2 and a right hemisphere 3 are sleeved outside the main pipeline 6, a sealing structure 4 is installed in corresponding grooves of the left hemisphere 2 and the right hemisphere 3, finally, a flange spherical sleeve 1 and a pressing sleeve 5 are sleeved outside the left hemisphere 2 and the right hemisphere 3, and finally, the flange spherical sleeve 1 and the pressing sleeve 5 are fixedly connected through bolts 9. The main pipeline 6 can swing in the rotating cavity to realize the pipeline angle compensation function; the pipeline can also rotate along the axis to realize the tangential torsion compensation function.
The pressure balance type ball sleeve type deformation compensation device has the functions of axial compensation, angle compensation and torsion compensation. Referring to fig. 2, radial compensation can thus also be achieved when the two compensation means are paired for use. The radial compensation amount X is as follows: x= ± (l+2l 0) sin3 °, wherein L 0 is the length of the right half of the compensating device, and L is the distance between the two compensating devices, and a specific schematic view is shown in fig. 2.
The material, the structural size and the strength index used by the pressure balance type ball sleeve type deformation compensation device can be designed according to the pressure and the working condition of the medium, and the controllability is strong.
The pressure balance type spherical sleeve type deformation compensation system for the sea pipeline has the following beneficial effects:
(1) The device solves the defects of large, heavy, complex and difficult of the existing pipeline displacement compensation device, and has the advantages of compact structure, small size, light weight and strong adaptability compared with other corrugated pipe compensation devices with equal diameters;
(2) Meanwhile, the multi-degree-of-freedom pipeline compensation capability is provided, and the compensation requirements of most pipelines can be met;
(3) The design principle of the device has wider application field, and can be applied to various liquid media and gas-liquid mixed media through the change of materials;
(4) The device has high self structural strength, and can be applied to pipeline displacement compensation involving alternating pressure and alternating temperature under various paths through an adaptive design.
The invention also provides a pressure balance type spherical sleeve type deformation compensation device for the sea pipeline.
In the preferred embodiment, the pressure balance type spherical sleeve deformation compensation device for the sea-going pipeline comprises a flange spherical sleeve 1, a left hemisphere 2, a right hemisphere 3, a slip ring 8 and a pressure sleeve 5, wherein,
The flange ball sleeve 1 is connected with the pressing sleeve 5 to jointly form a rotating cavity, the left hemisphere 2 and the right hemisphere 3 are accommodated in the rotating cavity and can rotate relative to the rotating cavity, a hollow channel for the main pipe 6 to be inserted is jointly formed on the inner sides of the left hemisphere 2 and the right hemisphere 3, a sealing structure 4 is arranged between the outer side wall of the left hemisphere 2 and the inner side wall of the flange ball sleeve 1, a sealing structure 4 is arranged between the outer side wall of the right hemisphere 3 and the inner side wall of the pressing sleeve 5, an annular cavity is formed on the mutually opposite side surfaces of the left hemisphere 2 and the right hemisphere 3, and the slip ring 8 is located inside the annular cavity and is used for being sleeved outside the main pipe 6.
Specifically, the left hemisphere 2 includes first rotation portion and first supporting part, and the lateral wall of first rotation portion is spherical structure, and the lateral wall of first supporting part is cylindrical structure, and the inside of left hemisphere 2 has been seted up first round hole and the second round hole of coaxial setting, and the diameter of second round hole is greater than first round hole, and second round hole and first round hole junction form the step face in order to carry out spacingly to the tip of trunk line 6.
Specifically, right hemisphere 3 includes second rotation portion and second supporting part, and the lateral wall of second rotation portion is spherical structure, and the lateral wall of second supporting part is cylindrical structure, and the recess has been seted up on the first supporting part near right hemisphere 3 one side, and the tip of second supporting part inserts in the recess of first supporting part, and the inside wall of second supporting part forms annular cavity.
Specifically, the outer side of the second supporting part is convexly provided with a connecting part with a circular ring structure, and the connecting part is abutted with the inner side wall of the pressing sleeve 5.
Specifically, annular grooves for installing sealing rings are formed in the first rotating part and the second rotating part.
Specifically, the inside of right hemisphere 3 has seted up coaxial third round hole and the fourth round hole that sets up, and the diameter of third round hole is greater than the fourth round hole, and the diameter of first round hole is the same with the fourth round hole diameter, and first round hole and fourth round hole contact with the external side wall of trunk line 6, and third round hole inner space forms annular cavity.
Specifically, annular grooves for installing sealing rings are formed in the second round hole and the fourth round hole.
Further, a check ring and a rubber sealing ring are arranged between the slip ring 8 and the right hemisphere 3. Specifically, a check ring and a rubber sealing ring are arranged between the slip ring 8 and the inner side wall of the second supporting part (namely, the position of the third round hole). Two grooves are formed in the slip ring 8, one groove is used for installing a check ring, the friction coefficient of the check ring is about 20% of that of the rubber sealing ring, the friction resistance of the slip ring 8 and the main pipeline 6 in movement is reduced, and the other groove is used for installing the rubber sealing ring, so that the friction resistance is reduced.
Because sliding seals are also arranged between the slip ring 8 and the right hemisphere 3 and between the main pipeline 6 and the left hemisphere 3 and the right hemisphere 3, two grooves are formed in the slip ring 8 to ensure reliable sealing and flexible movement of the main pipeline 6.
The foregoing description is only of the preferred embodiments of the present invention, and is not intended to limit the scope of the invention, but is intended to cover all equivalent structures modifications, direct or indirect application in other related arts, which are included in the scope of the present invention.
Claims (8)
1. A pressure balance type ball sleeve type deformation compensation device for a sea pipeline is characterized by comprising a flange ball sleeve, a left hemisphere, a right hemisphere, a slip ring and a pressure sleeve, wherein,
The flange ball sleeve is connected with the pressing sleeve to jointly form a rotating cavity, the left hemisphere and the right hemisphere are accommodated in the rotating cavity and can rotate relative to the rotating cavity, a hollow channel for the main pipeline to be inserted is jointly formed inside the left hemisphere and the right hemisphere, a sealing structure is arranged between the outer side wall of the left hemisphere and the inner side wall of the flange ball sleeve, a sealing structure is arranged between the outer side wall of the right hemisphere and the inner side wall of the pressing sleeve, an annular cavity is formed on the mutually opposite side surfaces of the left hemisphere and the right hemisphere, and the slip ring is positioned inside the annular cavity and is used for being sleeved outside the main pipeline; the right hemisphere, the slip ring and the outer side wall of the main pipeline form an annular balance cavity; the slip ring is fixedly connected with the main pipeline; the left hemisphere comprises a first rotating part and a first supporting part, the outer side wall of the first rotating part is of a spherical structure, the outer side wall of the first supporting part is of a cylindrical structure, a first round hole and a second round hole which are coaxially arranged are formed in the left hemisphere, the diameter of the second round hole is larger than that of the first round hole, and a step surface is formed at the joint of the second round hole and the first round hole so as to limit the end part of the main pipeline; the right hemisphere includes second rotation portion and second supporting part, and the lateral wall of second rotation portion is spherical structure, and the lateral wall of second supporting part is cylindrical structure, and set up flutedly on the first supporting part is close to right hemisphere one side, and the tip of second supporting part inserts in the recess of first supporting part, and the inside wall of second supporting part forms annular cavity.
2. The pressure balance type spherical sleeve deformation compensation device for the sea pipeline according to claim 1, wherein the outer side of the second supporting part is convexly provided with a connecting part with a circular ring structure, and the connecting part is abutted against the inner side wall of the pressure sleeve.
3. The pressure balance type ball sleeve type deformation compensation device for sea pipelines according to claim 1, wherein annular grooves for installing sealing rings are formed in the first rotating part and the second rotating part.
4. The pressure balance type spherical sleeve deformation compensation device for the sea pipeline according to claim 1, wherein a third round hole and a fourth round hole which are coaxially arranged are formed in the right hemisphere, the diameter of the third round hole is larger than that of the fourth round hole, the diameter of the first round hole is the same as that of the fourth round hole, the first round hole and the fourth round hole are in contact with the outer side wall of the main pipeline, and an annular cavity is formed in the inner space of the third round hole.
5. The pressure balance ball sleeve type deformation compensation device for the sea pipeline according to claim 1, wherein annular grooves for installing sealing rings are formed in the second round hole and the fourth round hole.
6. A pressure balanced ball-and-socket type deformation compensation apparatus for a sea line according to any one of claims 1 to 5 wherein a lattice ring and a rubber seal are mounted between the slip ring and the right hemisphere.
7. A pressure balance type ball sleeve type deformation compensation system for a sea pipeline, which is characterized by comprising the pressure balance type ball sleeve type deformation compensation device for the sea pipeline according to any one of claims 1 to 6, and further comprising a main pipeline, wherein the head of the main pipeline is inserted into a channel formed by a left hemisphere and a right hemisphere, and a slip ring is fixed outside the main pipeline.
8. The pressure balance type spherical sleeve deformation compensation system for the sea pipeline according to claim 7, wherein the right hemisphere, the slip ring and the outer side wall of the main pipeline form an annular balance cavity, and the side wall of the main pipeline is provided with a through hole for communicating with the annular balance cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202210756478.1A CN115183070B (en) | 2022-06-29 | 2022-06-29 | Pressure balance type ball sleeve type deformation compensation device and system for sea pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202210756478.1A CN115183070B (en) | 2022-06-29 | 2022-06-29 | Pressure balance type ball sleeve type deformation compensation device and system for sea pipeline |
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| CN115183070A CN115183070A (en) | 2022-10-14 |
| CN115183070B true CN115183070B (en) | 2024-04-26 |
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| CN115183070A (en) | 2022-10-14 |
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