Deepwater jacket leveler jaw test device and construction method thereof

Abstract

The invention discloses a deepwater jacket leveler jaw test device and a construction method thereof, the deepwater jacket leveler jaw test device comprises a jaw test tool, a pressure gauge and a manual hydraulic loading pump, and the pressure gauge is arranged between the jaw test tool and the manual hydraulic loading pump; an outer steel cylinder is arranged in the clamping jaw test tool, a clamping jaw is arranged on the outer steel cylinder, the clamping jaw is fixed on the outer steel cylinder through a check block, the clamping jaw clamps a steel pile, one end of the steel pile abuts against a hydraulic jack, and the hydraulic jack is driven by a manual hydraulic loading pump to enable the steel pile to move upwards. According to the deepwater jacket leveler jaw test device, the hydraulic jack is pressurized by operating the manual hydraulic loading pump, so that the steel pile is jacked to drive the test jaw to be stressed, and the loading load is identified and recorded by reading and monitoring the numerical value of the pressure gauge; the purpose of simulating the stress condition of the leveler clamping jaw in the working state is achieved, and the mechanical performance of the clamping jaws made of different materials can be visually evaluated.

Description

Technical Field

[0001] The invention belongs to the field of deepwater jacket installation in offshore petroleum engineering, and in particular relates to a deepwater jacket leveler claw test device and a construction method thereof. Background Art

[0002] With the rapid increase in the number of deepwater jacket installations, the demand for deepwater installation equipment has grown rapidly. In order to reduce offshore installation costs and ensure the smooth progress of the project, deepwater jacket levelers are needed.

[0003] As the most critical functional execution component of the deepwater jacket leveler, the claw is the top priority of research and development. During the research and development process of the claw, it is necessary to conduct theoretical research and experimental verification on the claws of different materials. Therefore, it is particularly important to develop a set of test equipment and test methods for claw performance testing.

[0004] Therefore, it is urgent to design a deepwater jacket leveler claw test device to solve the above-mentioned problem of testing and verifying the claw. Summary of the invention

[0005] In order to solve the technical problem mentioned in the background technology that the claw is the most critical function execution component of the deepwater jacket leveler, it is necessary to conduct theoretical research and experimental verification on the claws of different materials respectively. A deepwater jacket leveler claw test device is provided to solve the problem of claw test verification.

[0006] To achieve the above-mentioned purpose, the specific technical scheme of the deepwater jacket leveler claw test device of the present invention is as follows: A deepwater jacket leveler claw test device comprises a claw test fixture, a pressure gauge and a manual hydraulic loading pump, wherein the pressure gauge is arranged between the claw test fixture and the manual hydraulic loading pump; an outer steel cylinder is arranged inside the claw test fixture, and a claw is arranged on the outer steel cylinder, and the claw is fixed to the outer steel cylinder through a block, and the claw clamps a steel pile, and one end of the steel pile abuts against a hydraulic jack, and the hydraulic jack is driven by the manual hydraulic loading pump to move the steel pile upward.

[0007] Furthermore, a plurality of outer steel cylinders are arranged in the clamping claw test tooling, the plurality of outer steel cylinders are connected in sequence, and clamping claws are arranged on the plurality of outer steel cylinders.

[0008] Furthermore, a wedge-shaped slider is provided on the inclined surface of the inner wall of the outer steel cylinder, and the clamping claw is slidably arranged in the dovetail groove of the wedge-shaped slider.

[0009] Furthermore, a stopper is provided on the wedge-shaped slider, and the stopper abuts against the claw so that the claw is fixed on the wedge-shaped slider.

[0010] Furthermore, the wedge-shaped sliding block is fixed on the outer steel cylinder through a supporting block.

[0011] Furthermore, one end of the outer steel cylinder is connected to a bottom plate, and a hydraulic jack is arranged on the bottom plate. The end of the hydraulic jack away from the bottom plate abuts against the steel pile clamped by the claw.

[0012] Furthermore, a groove is provided along the length direction of the inner wall of the outer steel cylinder, and a wedge-shaped sliding block is provided in the groove.

[0013] Furthermore, an adjusting bolt is screwed onto the support block, one end of which abuts against the wedge-shaped slider. The adjusting bolt is used to make the wedge-shaped slider slide upward along the groove of the outer steel cylinder.

[0014] A construction method for a deepwater jacket leveler claw test device mainly comprises the following steps: S1. Install the claws to be tested in the dovetail groove of the wedge-shaped slider. Install two claws to be tested in the dovetail groove of each wedge-shaped slider. After the claws to be tested are installed, fix them in the dovetail groove with a block. S2. According to S1, four sets of wedge-shaped sliders are installed with the jaws to be tested in sequence; S3. Install four sets of wedge-shaped sliders into the grooves of the inner wall of the outer steel cylinder in sequence, and install support blocks at the bottom of the grooves. At the same time, adjust the adjustment bolts of the support blocks to keep the wedge-shaped sliders at the bottom of the grooves of the outer steel cylinder. After the four sets of wedge-shaped sliders evenly distributed circumferentially are installed and adjusted in place in sequence according to the above steps, install the hydraulic jack and steel piles from the top of the outer steel cylinder. S4. Connect the hydraulic jack and the manual hydraulic loading pump with hydraulic pipes and quick connectors, and install a pressure gauge; S5. Adjust the adjusting bolts of each support block in turn, so that the wedge-shaped slider slides upward along the groove on the inner wall of the outer steel cylinder until the serrations on the surface of the claw are in close contact with the outer wall of the steel pile. Operate the manual hydraulic loading pump to load the hydraulic jack step by step and maintain the pressure, thereby lifting the steel pile to drive the claw to bear the force. S6. During the step-by-step loading process, read and record the pressure gauge value. After each loading and pressure maintenance, unload and check the wear of the jaws and perform non-destructive testing, and record; S7. When replacing the jaws with different materials for testing, re-test according to S1-S6 above and record.

[0015] Further, the adjusting bolt is screwed into the middle part of the supporting block.

[0016] The deepwater jacket leveler claw test device and the construction method thereof of the present invention have the following advantages: By operating the manual hydraulic loading pump to pressurize the hydraulic jack, the steel pile is lifted to drive the test claw to bear force. By reading and monitoring the pressure gauge value, the loading load is identified and recorded, achieving the purpose of simulating the force condition of the leveler claw under working condition. The test load data recorded in this application can intuitively evaluate the mechanical properties of claws of different materials, solving the problem of judging whether the performance of claws of different materials meets the functional requirements of the leveler. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is an overall structural diagram of the deepwater jacket leveler claw test device of the present invention; Figure 2 It is a structural schematic diagram of a claw test tooling of a deepwater jacket leveler claw test device of the present invention; Figure 3 It is a schematic diagram of the claws, wedge-shaped sliders, stoppers and support blocks of the deepwater jacket leveler claw test device of the present invention being installed on the inner wall of the outer steel cylinder; Figure 4 It is a schematic diagram of the clamping claw and the stopper of the deepwater jacket leveler clamping claw test device of the present invention being installed in the dovetail groove of the wedge-shaped slider.

[0018] Description of the markings in the figure: 1. Claw test fixture; 11. Outer steel cylinder; 12. Claw; 13. Wedge-shaped slider; 14. Stop block; 15. Support block; 16. Hydraulic jack; 2. Pressure gauge; 3. Manual hydraulic loading pump; 4. Steel pile; 5. Base plate. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0020] Those skilled in the art will appreciate that, although some embodiments herein include certain features included in other embodiments but not other features, the combination of features of different embodiments is meant to be within the scope of the present invention and form different embodiments. For example, in the claims, any one of the claimed embodiments may be used in any combination.

[0021] Please refer to the attached Figure 1 To Attachment Figure 4 The present invention describes a deepwater jacket leveler claw test device.

[0022] like Figures 1 to 3 As shown, the deepwater jacket leveler claw test device of the present invention includes a claw test fixture 1, a pressure gauge 2 and a manual hydraulic loading pump 3, and the pressure gauge 2 is arranged between the claw test fixture 1 and the manual hydraulic loading pump 3; an outer steel cylinder 11 is arranged inside the claw test fixture 1, and a claw 12 is arranged on the outer steel cylinder 11, and the claw 12 is fixed on the outer steel cylinder 11 through a block 14, and the claw 12 clamps the steel pile 4, and one end of the steel pile 4 abuts on the hydraulic jack 16, and the hydraulic jack 16 is driven by the manual hydraulic loading pump 3 to move the steel pile 4 upward.

[0023] By operating the manual hydraulic loading pump 3 to pressurize the hydraulic jack 16, the steel pile 4 is lifted to drive the test claw 12 to bear the force, and by reading and monitoring the value of the pressure gauge 2, the loading load is identified and recorded, so as to achieve the purpose of simulating the force condition of the leveler claw under the working state. The test load data recorded in this application can intuitively evaluate the mechanical properties of claws of different materials, and solve the problem of judging whether the performance of claws of different materials meets the functional requirements of the leveler.

[0024] Further, if Figure 1 and Figure 4 As shown, a plurality of outer steel cylinders 11 are arranged in the clamping claw test fixture 1, and the plurality of outer steel cylinders 11 are connected in sequence, and a clamping claw 12 is arranged on each of the plurality of outer steel cylinders 11; a wedge-shaped slider 13 is arranged on the inclined surface of the inner wall of the outer steel cylinder 11, and the clamping claw 12 is slidably arranged in the dovetail groove of the wedge-shaped slider 13; a stopper 14 is arranged on the wedge-shaped slider 13, and the stopper 14 abuts against the clamping claw 12 to fix the clamping claw 12 on the wedge-shaped slider 13.

[0025] In this embodiment, preferably, four outer steel cylinders 11 are provided inside the clamping claw 12 test tooling, and the side walls of the four outer steel cylinders 11 are connected in sequence to form a cylindrical shape matching the shape of the steel pile 4, and the four outer steel cylinders 11 are provided with clamping claws 12 so that the clamping claws 12 can stably clamp the steel pile 4.

[0026] Preferably, a wedge-shaped slider 13 is provided along the length direction of the inner wall of the outer steel cylinder 4, and the claw 12 is arranged in the dovetail groove of the wedge-shaped slider 13; a stopper 14 is provided at the dovetail groove end of the wedge-shaped slider 13, and one end of the stopper 14 abuts against the claw 12, thereby fixing the claw 12.

[0027] Further, if Figure 1 As shown, the wedge-shaped slider 13 is fixed on the outer steel cylinder 11 through a support block 15; one end of the outer steel cylinder 11 is connected to a base plate 5, and a hydraulic jack 16 is arranged on the base plate 5, and the end of the hydraulic jack 16 away from the base plate 5 abuts against the steel pile 4 clamped by the claw 12; a groove is arranged along the length direction of the inner wall of the outer steel cylinder 11, and the wedge-shaped slider 13 is arranged in the groove; an adjusting bolt is screwed on the support block 15, and one end of the adjusting bolt abuts against the wedge-shaped slider 13, and the wedge-shaped slider 13 slides upward along the groove of the outer steel cylinder 11 through the adjusting bolt.

[0028] In this embodiment, preferably, a support block 15 is connected to the outer steel cylinder 11, and an adjusting bolt is threaded on the support block 15. One end of the adjusting bolt abuts against the stop block 14 of the wedge-shaped slider 13. By turning the adjusting bolt, the wedge-shaped slider 13 slides up and down along the groove of the outer steel cylinder 11, thereby changing the clamping position of the claw 12.

[0029] A bottom plate 5 is provided at one end of the outer steel cylinder 11, and a hydraulic jack 16 is provided on the bottom plate 5. The end of the hydraulic jack 16 away from the bottom plate 5 is in contact with the steel pile 4. The hydraulic jack 16 provides pressure through a manual hydraulic loading pump 3, and a pressure gauge 2 is used to monitor the pressure value to adapt to multiple sets of experimental data.

[0030] The present application also provides a construction method for a deepwater jacket leveler claw test device, which mainly includes the following steps: S1. Install the claws 12 to be tested in the dovetail groove of the wedge-shaped slider 13. Install two claws 12 to be tested in the dovetail groove of each wedge-shaped slider 13. After the claws 12 to be tested are installed, fix them in the dovetail groove with the stopper 14. S2, according to S1, four sets of wedge-shaped sliders 13 are installed with the claws 12 to be tested in sequence; S3, install four groups of wedge-shaped sliders 13 into the grooves of the inner wall of the outer steel cylinder 11 in sequence, and install the support block 15 at the bottom of the groove, and adjust the adjustment bolts of the support block 15 to keep the wedge-shaped sliders 13 at the bottom of the groove of the outer steel cylinder 11. After the four groups of wedge-shaped sliders 13 evenly distributed circumferentially are installed and adjusted in place in sequence according to the above steps, install the hydraulic jack 16 and the steel pile 4 from the top of the outer steel cylinder 11; S4, connect the hydraulic jack 16 and the manual hydraulic loading pump 3 with a hydraulic pipe and a quick connector, and install the pressure gauge 2; S5, adjust the adjusting bolts of each support block 15 in turn, so that the wedge-shaped slider 13 slides upward along the groove on the inner wall of the outer steel cylinder 11, until the serrations on the surface of the claw 12 are in close contact with the outer wall of the steel pile 4, and operate the manual hydraulic loading pump 3 to load the hydraulic jack 16 step by step and maintain the pressure, so as to lift the steel pile 4 and drive the claw 12 to bear the force; S6. During the step-by-step loading process, read and record the pressure gauge value. After each loading and pressure maintenance, unload and check the wear of the claw 12 and perform non-destructive testing, and record it; S7. When replacing the claws 12 with different materials for testing, re-test according to S1-S6 above and record.

[0031] Further, if Figure 1As shown, the adjusting bolt is screwed in the middle of the support block 15. Preferably, the adjusting bolt is rotated to move the wedge-shaped slider 13, so that the wedge-shaped slider 13 slides upward along the groove on the inner wall of the outer steel cylinder 11, so that the serrations on the surface of the claw 12 are in close contact with the outer wall of the steel pile 4, thereby clamping the steel pile 4.

[0032] Based on the deepwater jacket leveler claw test device and its construction method, the present invention operates the manual hydraulic loading pump 3 to pressurize the hydraulic jack 16, thereby lifting the steel pile 4 to drive the test claw 12 to bear the force, and by reading and monitoring the value of the pressure gauge 2, identifying the loading load and recording it, the purpose of simulating the force condition of the leveler claw in the working state is achieved. The test load data recorded in this application can intuitively evaluate the mechanical properties of claws of different materials, and solve the problem of judging whether the performance of claws of different materials meets the functional requirements of the leveler.

[0033] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the embodiments here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A deepwater jacket leveler claw test device, characterized in that: It includes a claw test fixture, a pressure gauge and a manual hydraulic loading pump. The pressure gauge is arranged between the claw test fixture and the manual hydraulic loading pump. An outer steel cylinder is arranged inside the claw test fixture. A claw is arranged on the outer steel cylinder. The claw is fixed to the outer steel cylinder through a block. The claw clamps the steel pile. One end of the steel pile abuts against the hydraulic jack. The hydraulic jack is driven by the manual hydraulic loading pump to move the steel pile upward.

2. The deepwater jacket leveler claw test device according to claim 1 is characterized in that: A plurality of outer steel cylinders are arranged in the clamping claw test fixture, the plurality of outer steel cylinders are connected in sequence, and clamping claws are arranged on the plurality of outer steel cylinders.

3. The deepwater jacket leveler claw test device according to claim 2, characterized in that: A wedge-shaped sliding block is arranged on the inclined surface of the inner wall of the outer steel cylinder, and the clamping claw is slidably arranged in the dovetail groove of the wedge-shaped sliding block.

4. The deepwater jacket leveler claw test device according to claim 3 is characterized in that: A stopper is arranged on the wedge-shaped slide block, and the stopper abuts against the clamping claw so that the clamping claw is fixed on the wedge-shaped slide block.

5. The deepwater jacket leveler claw test device according to claim 4, characterized in that: The wedge-shaped sliding block is fixed on the outer steel cylinder through a supporting block.

6. The deepwater jacket leveler claw test device according to claim 5, characterized in that: One end of the outer steel cylinder is connected with a bottom plate, and a hydraulic jack is arranged on the bottom plate. The end of the hydraulic jack away from the bottom plate is in contact with the steel pile clamped by the clamping claw.

7. The deepwater jacket leveler claw test device according to claim 5, characterized in that: A groove is arranged along the length direction of the inner wall of the outer steel cylinder, and a wedge-shaped sliding block is arranged in the groove.

8. The deepwater jacket leveler claw test device according to claim 5, characterized in that: An adjusting bolt is screwed on the support block, one end of which abuts against the wedge-shaped sliding block. The adjusting bolt is used to make the wedge-shaped sliding block slide upward along the groove of the outer steel cylinder.

9. A construction method for a deepwater jacket leveler claw test device, characterized in that: The main steps include: S1. Install the claws to be tested in the dovetail groove of the wedge-shaped slider. Install two claws to be tested in the dovetail groove of each wedge-shaped slider. After the claws to be tested are installed, fix them in the dovetail groove with a block. S2. According to S1, four sets of wedge-shaped sliders are installed with the jaws to be tested in sequence; S3. Install four sets of wedge-shaped sliders into the grooves of the inner wall of the outer steel cylinder in sequence, and install support blocks at the bottom of the grooves. At the same time, adjust the adjustment bolts of the support blocks to keep the wedge-shaped sliders at the bottom of the grooves of the outer steel cylinder. After the four sets of wedge-shaped sliders evenly distributed circumferentially are installed and adjusted in place in sequence according to the above steps, install the hydraulic jack and steel piles from the top of the outer steel cylinder. S4. Connect the hydraulic jack and the manual hydraulic loading pump with hydraulic pipes and quick connectors, and install a pressure gauge; S5. Adjust the adjusting bolts of each support block in turn, so that the wedge-shaped slider slides upward along the groove on the inner wall of the outer steel cylinder until the serrations on the surface of the claw are in close contact with the outer wall of the steel pile. Operate the manual hydraulic loading pump to load the hydraulic jack step by step and maintain the pressure, thereby lifting the steel pile to drive the claw to bear the force. S6. During the step-by-step loading process, read and record the pressure gauge value. After each loading and pressure maintenance, unload and check the wear of the jaws and perform non-destructive testing, and record; S7. When replacing the jaws with different materials for testing, re-test according to S1-S6 above and record.

10. The construction method of the deepwater jacket leveler claw test device according to claim 9, characterized in that: The adjusting bolt is screwed into the middle of the supporting block.

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