Hydraulic assembly of offshore oil platform

Abstract

The hydraulic assembly of the offshore oil platform comprises a hydraulic cylinder body, the outer side of the hydraulic cylinder body is fixedly connected with an injection pipe, the upper end of the interior of the hydraulic cylinder body is fixedly connected with a sealing top plate, the interior of the sealing top plate is connected with a telescopic column in a sliding mode, and a hand screwing piece arranged in a first sealing mechanism is rotated; a two-way screw rod rotates under the meshing rotation of a driven gear and a driving gear, so that sealing cover plates arranged at the upper end and the lower end move relatively under the rotation of the two-way screw rod, and an external oil conveying pipe and an injection pipe are clamped and sealed by the sealing cover plates; second rubber rings arranged on the inner sides of the sealing cover plates can improve the sealing performance of the two sealing cover plates in the clamping process, so that the possibility that seawater permeates into the hydraulic cylinder body is avoided, and meanwhile the situation that due to the fact that an external oil conveying pipe and an injection pipe are not tightly connected, seawater enters the hydraulic cylinder body, and corrosion damage is caused can be avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of hydraulic components, and in particular relates to a hydraulic component of an offshore oil platform. Background Art

[0002] Offshore oil platforms are important facilities for modern offshore oil and gas development, and their hydraulic components are part of the platform's key transmission and control systems. The hydraulic system transmits energy through pressure media (usually liquid) to drive various mechanical equipment to work. On offshore oil platforms, hydraulic components are widely used in drilling, production, processing, storage and transportation of oil and gas.

[0003] At present, offshore oil platforms are supported by hydraulic components, which are placed in the ocean. However, the sealing effect between the hydraulic components and the hydraulic oil input pipes in the prior art is poor when used in water. When the seawater pressure increases after high tide or the connection is not tight, seawater will be pressed into the interior of the hydraulic component, thereby causing corrosion to the internal components of the hydraulic component. Utility Model Content

[0004] The technical problem to be solved by the utility model is to overcome the existing defects and provide a hydraulic component of an offshore oil platform to solve the problem proposed in the above background technology that the current offshore oil platform will use a hydraulic component to support it, but the hydraulic component is placed in the ocean, but the hydraulic component in the prior art and the hydraulic oil input pipe still have the problem of poor sealing effect when used in water, when the seawater pressure increases after high tide or the connection is not tight, the seawater will be pressed into the interior of the hydraulic component, thereby causing corrosion to the internal components of the hydraulic component.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a hydraulic component of an offshore oil platform, comprising a hydraulic cylinder body, an injection pipe is fixedly connected to the outer side of the hydraulic cylinder body, a sealing top plate is fixedly connected to the upper end of the interior of the hydraulic cylinder body, a telescopic column is slidably connected to the interior of the sealing top plate, a sliding block is fixedly connected to the bottom of the telescopic column, support seats are provided at both upper and lower ends of the outer side of the injection pipe, a bidirectional screw is symmetrically rotatably connected between the two support seats, a driven gear is fixedly connected to the upper end of the outer side of the bidirectional screw, a driving gear is meshingly connected to the outer side of the driven gear, a rotating shaft is fixedly connected to the top of the driving gear, a sealing cover plate is threadedly connected to the upper and lower ends of the outer side of the bidirectional screw, a threaded seat is fixedly connected to the top of the hydraulic cylinder body, and a second sealing mechanism is provided on the top of the threaded seat.

[0006] Preferably, a base is fixedly connected to the bottom of the hydraulic cylinder body.

[0007] Preferably, a first rubber ring is provided between the sealing top plate and the telescopic column, the sliding block is located inside the hydraulic cylinder body and is slidably connected, and a spring is fixedly connected between the sealing top plate and the sliding block.

[0008] Preferably, guide rods are provided on both sides of the two bidirectional screws, the guide rods are fixedly connected between the two support seats, and the sealing cover plate is slidably connected to the outer sides of the guide rods.

[0009] Preferably, a second rubber ring is fixedly connected to the inner side of the sealing cover plate, and the bidirectional screw, guide rod, driven gear, driving gear and rotating shaft are all made of stainless steel.

[0010] Preferably, a first protective plate is fixedly connected to the outer side of the support seat, and a second protective plate is fixedly connected to the top of the support seat.

[0011] Preferably, a hand-tightening piece is fixedly connected to the top of the rotating shaft.

[0012] Preferably, the second sealing mechanism comprises a sealing end cover, which is threadedly connected to the outside of the threaded seat, a rubber liquid bag is fixedly connected to the top of the threaded seat, a liquid storage tank is provided inside the rubber liquid bag, and a guide tube is provided between the rubber liquid bag and the telescopic column.

[0013] Compared with the prior art, the utility model provides a hydraulic assembly for an offshore oil platform, which has the following beneficial effects:

[0014] 1. The utility model provides a first sealing mechanism composed of a support seat, a guide rod, a bidirectional screw, a driven gear, a driving gear, a rotating shaft, a hand-tightening piece, a sealing cover plate and a second rubber ring. When in use, the hydraulic assembly of the offshore oil platform is placed in the ocean. After the external oil pipeline is threadedly connected with the injection pipe, the hand-tightening piece provided in the first sealing mechanism is rotated, so that the bidirectional screw is rotated under the meshing rotation of the driven gear and the driving gear, and then the sealing cover plates provided at the upper and lower ends are relatively moved under the rotation of the bidirectional screw, so that the sealing cover plate clamps and seals the external oil pipeline and the injection pipe. The second rubber ring provided on the inner side of the sealing cover plate can increase the sealing performance of the two sealing cover plates between the clamping, thereby preventing the possibility of seawater from penetrating into the interior of the hydraulic cylinder body, and also preventing the external oil pipeline and the injection pipe from being loosely connected, causing seawater to enter the interior of the hydraulic cylinder body and cause erosion damage;

[0015] 2. The utility model provides a second sealing mechanism. After the first sealing mechanism is connected to the hydraulic cylinder body and the external oil pipeline, the sealing end cover provided in the second sealing mechanism is threadedly connected to the threaded seat. A liquid storage tank is provided inside the rubber liquid bag provided on the top of the sealing end cover. After high tide, the water pressure squeezes the rubber liquid bag. At this time, the liquid inside the rubber liquid bag will expand under the influence of pressure, so that the rubber liquid bag can squeeze the outer side of the telescopic column, thereby increasing the contact strength between the rubber liquid bag and the telescopic column, and improving the sealing performance. In addition, the first rubber ring provided between the telescopic column and the sealing top plate can further prevent seawater from entering the interior of the hydraulic cylinder body and causing erosion.

[0016] The parts not involved in the device are the same as the existing technology or can be implemented by using the existing technology. The utility model has a scientific and reasonable structure, is safe and convenient to use, and provides great help to people. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0018] Figure 1 This is a schematic diagram of the axial structure of one side of a hydraulic component of an offshore oil platform proposed by the utility model;

[0019] Figure 2 This is a schematic diagram of the axial structure of the other side of a hydraulic assembly of an offshore oil platform proposed by the utility model;

[0020] Figure 3 This is a schematic diagram of the sealing cover plate structure of a hydraulic assembly of an offshore oil platform proposed by the utility model;

[0021] Figure 4 This is a schematic diagram of the injection pipe structure of a hydraulic assembly of an offshore oil platform proposed by the utility model;

[0022] Figure 5 This is a cross-sectional structural schematic diagram of a hydraulic assembly of an offshore oil platform proposed by the utility model;

[0023] Figure 6 This is a schematic diagram of the structure of a rubber liquid bag of a hydraulic component of an offshore oil platform proposed by the utility model;

[0024] In the figure: hydraulic cylinder body 1, base 2, injection pipe 3, sealing top plate 4, telescopic column 5, first rubber ring 6, slider 7, spring 8, support seat 9, guide rod 10, bidirectional screw 11, driven gear 12, driving gear 13, rotating shaft 14, hand screw 15, sealing cover plate 16, second rubber ring 17, first protective plate 18, second protective plate 19, threaded seat 20, sealing end cover 21, rubber liquid sac 22, guide tube 23, liquid storage tank 24. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] See also Figure 1-6 The utility model provides a technical solution: a hydraulic assembly of an offshore oil platform, comprising a hydraulic cylinder body 1, an injection pipe 3 is fixedly connected to the outside of the hydraulic cylinder body 1, a sealing top plate 4 is fixedly connected to the upper end of the inside of the hydraulic cylinder body 1, a telescopic column 5 is slidably connected to the inside of the sealing top plate 4, a sliding block 7 is fixedly connected to the bottom of the telescopic column 5, support seats 9 are arranged at both upper and lower ends of the outside of the injection pipe 3, a bidirectional screw 11 is symmetrically rotatably connected between the two support seats 9, a driven gear 12 is fixedly connected to the upper end of the outside of the bidirectional screw 11, a driving gear 13 is meshingly connected to the outside of the driven gear 12, a rotating shaft 14 is fixedly connected to the top of the driving gear 13, a sealing cover plate 16 is threadedly connected to the upper and lower ends of the outside of the bidirectional screw 11, and a threaded seat 20 is fixedly connected to the top of the hydraulic cylinder body 1 After the external oil pipeline is threadedly connected with the injection pipe 3, the hand-tightening piece 15 provided in the first sealing mechanism is rotated to make the bidirectional screw 11 rotate under the meshing rotation of the driven gear 12 and the driving gear 13, so that the sealing cover plates 16 provided at the upper and lower ends are relatively moved under the rotation of the bidirectional screw 11, so that the sealing cover plates 16 can clamp and seal the external oil pipeline and the injection pipe 3. The second rubber ring 17 provided on the inner side of the sealing cover plate 16 can increase the sealing performance of the two sealing cover plates 16 between the clamping, thereby avoiding the possibility of seawater infiltration into the interior of the hydraulic cylinder body 1, and also avoiding the external oil pipeline and the injection pipe 3 being loosely connected, causing seawater to enter the interior of the hydraulic cylinder body 1 and cause erosion damage. A second sealing mechanism is provided on the top of the threaded seat 20.

[0027] In the utility model, preferably, a base 2 is fixedly connected to the bottom of the hydraulic cylinder body 1 .

[0028] In the present invention, preferably, a first rubber ring 6 is provided between the sealing top plate 4 and the telescopic column 5 , a slider 7 is slidably connected inside the hydraulic cylinder body 1 , and a spring 8 is fixedly connected between the sealing top plate 4 and the slider 7 .

[0029] In the present invention, preferably, guide rods 10 are provided on both sides of the two bidirectional screws 11 , the guide rods 10 are fixedly connected between the two support seats 9 , and the sealing cover plate 16 is slidably connected on the outer side of the guide rods 10 .

[0030] In the present invention, preferably, a second rubber ring 17 is fixedly connected to the inner side of the sealing cover plate 16, and the bidirectional screw 11, the guide rod 10, the driven gear 12, the driving gear 13 and the rotating shaft 14 are all made of stainless steel.

[0031] In the present invention, preferably, a first protective plate 18 is fixedly connected to the outer side of the support seat 9 , and a second protective plate 19 is fixedly connected to the top of the support seat 9 .

[0032] In the present invention, preferably, a hand-tightening member 15 is fixedly connected to the top of the rotating shaft 14 .

[0033] In the utility model, preferably, the second sealing mechanism includes a sealing end cover 21, which is threadedly connected to the outer side of the threaded seat 20, and a rubber liquid bag 22 is fixedly connected to the top of the threaded seat 20, and a liquid storage tank 24 is opened inside the rubber liquid bag 22, and a guide tube 23 is arranged between the rubber liquid bag 22 and the telescopic column 5.

[0034] The working principle and use process of the utility model are as follows: when in use, the external oil pipeline is connected to the injection pipe 3 through a thread, and then the first sealing mechanism is started by turning the hand-tightening piece 15. The bidirectional screw 11 rotates under the meshing rotation of the driven gear 12 and the driving gear 13, pushing the sealing cover plates 16 at the upper and lower ends to move relatively. The second rubber ring 17 is located on the inner side of the sealing cover plate 16 to increase the sealing performance, effectively engage the external oil pipeline and the injection pipe 3, and prevent seawater from infiltrating the hydraulic cylinder body 1. The telescopic column 5 is located inside the hydraulic cylinder body 1 and can be telescoped between the sealing top plate 4 and the slider 7 to adapt to the reciprocating motion of the hydraulic cylinder piston. The support seat 9 is located on the outside of the injection pipe 3 to provide stable support for the bidirectional screw 11 and the slider 7, and guides the sliding of the sealing cover plate through the guide rod 10. The first protective plate 18 and the second protective plate 19 are fixed to the outer side and top of the support seat 9 to provide additional Protection to prevent foreign matter from entering the sealing mechanism. All components that are often exposed to the seawater environment, such as the bidirectional screw 11, the guide rod 10, the driven gear 12, the driving gear 13 and the rotating shaft 14, are made of corrosion-resistant stainless steel to improve the durability and maintenance cycle of the components. The second sealing mechanism arranged on the top of the threaded seat 20 includes a sealing end cover 21 and a rubber liquid bag 22 to further ensure the sealing of the system. The rubber liquid bag 22 contains a liquid storage tank 24 for storing hydraulic oil to maintain the internal pressure balance of the system. The guide pipe 23 connects the rubber liquid bag 22 and the telescopic column 5 to ensure that the hydraulic oil can flow smoothly between the two. The hydraulic component realizes reliable sealing of the offshore oil platform hydraulic system through sophisticated mechanical design, ensures the safety of operation and the long-term stability of the system, and at the same time prolongs the service life of the component and reduces maintenance costs through protective design.

[0035] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A hydraulic assembly for an offshore oil platform, comprising a hydraulic cylinder body (1), characterized in that: The outer side of the hydraulic cylinder body (1) is fixedly connected to an injection pipe (3); the upper end of the inside of the hydraulic cylinder body (1) is fixedly connected to a sealing top plate (4); a telescopic column (5) is slidably connected to the inside of the sealing top plate (4); a sliding block (7) is fixedly connected to the bottom of the telescopic column (5); support seats (9) are provided at both upper and lower ends of the outer side of the injection pipe (3); a bidirectional screw (11) is symmetrically rotatably connected between the two support seats (9); the upper end of the outer side of the bidirectional screw (11) is fixedly connected to a driven gear (12); the outer side of the driven gear (12) is meshingly connected to a driving gear (13); the top of the driving gear (13) is fixedly connected to a rotating shaft (14); the upper and lower ends of the outer side of the bidirectional screw (11) are threadedly connected to a sealing cover plate (16); the top of the hydraulic cylinder body (1) is fixedly connected to a threaded seat (20); a second sealing mechanism is provided at the top of the threaded seat (20).

2. The hydraulic assembly of an offshore oil platform according to claim 1, characterized in that: The bottom of the hydraulic cylinder body (1) is fixedly connected to a base (2).

3. The hydraulic assembly of an offshore oil platform according to claim 1, characterized in that: A first rubber ring (6) is provided between the sealing top plate (4) and the telescopic column (5), the sliding block (7) is located inside the hydraulic cylinder body (1) and is slidably connected thereto, and a spring (8) is fixedly connected between the sealing top plate (4) and the sliding block (7).

4. The hydraulic assembly of an offshore oil platform according to claim 1, characterized in that: Guide rods (10) are provided on both sides of the two bidirectional screw rods (11), and the guide rods (10) are fixedly connected between the two support seats (9). The sealing cover plate (16) is slidably connected on the outer side of the guide rods (10).

5. The hydraulic assembly of an offshore oil platform according to claim 4, characterized in that: A second rubber ring (17) is fixedly connected to the inner side of the sealing cover plate (16); the bidirectional screw (11), the guide rod (10), the driven gear (12), the driving gear (13) and the rotating shaft (14) are all made of stainless steel.

6. The hydraulic assembly of an offshore oil platform according to claim 1, characterized in that: A first protective plate (18) is fixedly connected to the outer side of the support seat (9), and a second protective plate (19) is fixedly connected to the top of the support seat (9).

7. The hydraulic assembly of an offshore oil platform according to claim 1, characterized in that: A hand-tightening piece (15) is fixedly connected to the top of the rotating shaft (14).

8. The hydraulic assembly of an offshore oil platform according to claim 1, characterized in that: The second sealing mechanism comprises a sealing end cover (21), the sealing end cover (21) being threadedly connected to the outer side of the threaded seat (20), a rubber liquid bag (22) being fixedly connected to the top of the threaded seat (20), a liquid storage tank (24) being provided inside the rubber liquid bag (22), and a guide tube (23) being provided between the rubber liquid bag (22) and the telescopic column (5).

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