Test method for testing derrick strength

A test method and derrick technology, applied in the direction of applying stable tension/pressure to test material strength, strength characteristics, measuring devices, etc., can solve the problem that the loading load cannot be placed under the derrick, so as to reduce the difficulty of the test and make the test site flexible , the effect of a wide range of applications

Inactive Publication Date: 2017-10-17
DALIAN SHIPBUILDING IND
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Problems solved by technology

[0004] However, for drilling ships and semi-submersible platforms, since the derrick on it is a fixed structure and is located in the middle of the hull or platform, the lower part of the derrick is generally a closed seaport, so the large-tonnage load cannot be placed under the derrick. Derrick strength test using the method of directly lifting the load

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  • Test method for testing derrick strength
  • Test method for testing derrick strength
  • Test method for testing derrick strength

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Embodiment Construction

[0021] The counter support device for testing the strength of the derrick includes: a pressure sensor 3, a counter support 4, and a large-tonnage sling 7. The specific installation method: such as figure 1 As shown, the reaction force support 4 is a strong beam structure, which is installed below the drill floor 2, and pressure sensors 3 are installed at both ends of the contact portion between the upper panel of the reaction force support 4 and the lower panel of the drill floor 2 . Large-tonnage slings 7 are arranged on the reaction support, and large-tonnage slings 7 are connected with the hook 6 in the derrick.

[0022] The specific method of use: such as Figure 1~5 In the shown process, when doing the derrick strength test, the reaction support 4 is used as the hoisting load of the hook 6 in the derrick. Lift the hook, and the hook applies a load to the reaction support 4 through the large-tonnage sling 7 . At this time, the reaction force support transmits the force ...

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Abstract

The invention discloses a test method for testing derrick strength. A structure used by the method to perform derrick strength tests on marine engineering products with derrick structures and capable of facilitating the strength tests comprises a drill floor (2) on a drilling ship (5) and a derrick (1) and is characterized in that the derrick (1) is located on the drill floor (2), a counter-force support (4) is arranged between the drilling ship (5) and the drill floor (2), pressure sensors (3) are symmetrically arranged between the upper surface at two ends of the counter-force support (4) and the lower surface of the drill floor (2); a hook (6) is arranged on the vertical central line of the derrick (1), and a large-tonnage hoisting cable (7) connected with the counter-force support (4) by using the vertical central line as the symmetry line is hooked to the hook (6). Compared with the prior art, the structure is capable of facilitating test operation, safe and controllable in test, flexible in test timing, simple in test procedure and high in test precision.

Description

technical field [0001] The invention relates to the technical field of ocean engineering, and more specifically, relates to a device and method for testing a derrick strength reaction support. Background technique [0002] Marine engineering products with drilling and workover functions, for example, jack-up drilling platforms, semi-submersible drilling platforms, drilling ships and other devices are all equipped with derricks. Derricks in shipyards are assembled from multiple steel components. After the derrick is installed on the ship, the shipowner will require to simulate the actual operating conditions to test the structural strength of the derrick to verify whether the entire derrick structure of the rig after installation can meet the design requirements. [0003] In order to verify the strength of the derrick, the conventional method is: load the design load on the hook on the derrick, and then fully load the load on the derrick by lifting the hook, thereby verifyin...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N3/08
CPCG01N3/08G01N2203/0676
Inventor 鲁宁孙瑞雪黄天颖肖鹏翟海波
Owner DALIAN SHIPBUILDING IND
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