Rendering winch used for deep water pipe laying
A technology of sea pipes and winches, which is applied in the direction of pipeline laying and maintenance, mechanical equipment, pipes/pipe joints/pipe fittings, etc. It can solve the problems that single-drum winches cannot adapt, high cost of motors, and large bearing stress, etc., to achieve rapid braking, The effect of prolonging the life of the bearing and reducing the heat generation of the bearing
Active Publication Date: 2012-05-02
CHINA NAT OFFSHORE OIL CORP +2
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Problems solved by technology
[0003] At present, the existing single-drum winch cannot meet the needs of deep-water offshore oil pipe-laying operations. First of all, due to the large traction force of the winch required for deep-water pipe-laying, the existing single-drum winch cannot meet such a large traction load, while the double-drum winch cannot can tow heavy loads
Furthermore, the current retractable winch has the problems of excessive bearing stress during the traction operation, resulting in serious heating of the bearing and low bearing life.
In addition, if the retractable winch with large tonnage traction is braked, if the internal braking of the motor is used, it does not have such a large braking torque. Even if the motor with internal braking is a rare special motor, the cost of the motor is very high
Method used
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[0025] like Figure 1 to Figure 6As shown, the retractable winch for laying deep water sea pipes of the present invention includes a base 18, a frame 17, a drum 19, a drum 20, a driving device, an anti-pressure wheel 21, and an anti-pressure wheel 21'; Frame 17, roller 19 and roller 20 are arranged on the frame 17, the roller 19 and roller 20 are respectively connected to the driving device, the driving device is arranged on the base 18 and is located at both sides of the frame 17; the anti-pressure wheel 21 and anti-pressure Wheels 21 ′ are arranged on the frame 17 between the drum 19 and the drum 20 .
[0026] like Figure 1 to Figure 6 As shown, the retractable winch for laying deep-water sea pipes of the present invention, wherein, the frame 17 is located in the middle of the base 18; A vertical frame body, four corresponding roller support frames 22, 22', 23 and 23' and two corresponding anti-pressure wheel support frames 24 and anti-pressure wheel support frames 24 are...
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The invention provides a rendering winch used for deep water pipe laying. The rendering winch comprises a base, a frame, two rotary drums, a plurality of driving devices and a pressure-resistant wheel, wherein the frame is arranged on the base, and the frame is provided with the two rotary drums; the rotary drums are respectively connected with the driving devices, and the driving devices are arranged on the base and positioned on two sides of the frame; and the pressure-resistant wheel is arranged on the frame and positioned between the two rotary drums. The rendering winch provided by the invention has the efficacies of large-tonnage traction force, reliability in braking and high cost performance, and is suitable for being used in deep water pipe laying operation.
Description
technical field [0001] The invention relates to offshore pipe laying equipment, in particular to a retractable winch for laying deep water sea pipes. Background technique [0002] Retractable winches are usually used for traction of heavy objects. This type of equipment is one of the important equipment for offshore pipe-laying ships. It is used to pull the pipeline during the pipe collection or abandonment operation when laying the submarine pipeline. Especially when the pipe needs to be collected or abandoned in the deep water pipelaying operation, since the suspension length of the pipeline from the pipelaying ship to the seabed is very long, the winch needs to have a large traction force, and the The winch is required to have good and reliable braking performance. [0003] At present, the existing single-drum winch cannot meet the needs of deep-water offshore oil pipe-laying operations. First of all, because the deep-water pipe-laying requires the winch to have a larg...
Claims
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IPC IPC(8): B66D1/02B66D1/14F16L1/12
Inventor 喻开安张宏李欣刘文利赵宏林林立徐祥娟钟朝廷曾鸣张仕民丁庆新
Owner CHINA NAT OFFSHORE OIL CORP