A double hydraulic winch lifting control device
A lifting control, hydraulic winch technology, applied in the direction of fluid pressure actuating device, hoisting device, fluid pressure actuating system safety, etc., to achieve the effect of meeting installation needs
Active Publication Date: 2022-05-13
中油国家油气钻井装备工程技术研究中心有限公司 +2
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Problems solved by technology
[0004] The purpose of the present invention is to provide a double hydraulic winch lifting control device, which solves the synchronization problem when the drilling rig is lifted and lowered
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Embodiment Construction
[0018] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0019] The present invention is a double hydraulic winch lifting control device, comprising an oil supply port and an oil return port; the oil supply port is sequentially connected in parallel with a pressure reducing valve 3, a first reversing control piece 1-1, and a second reversing control piece through pipelines 1-2, the third reversing control piece 1-3;
[0020] The decompression valve 3 is sequentially connected in series with a hydraulic control reversing valve 4 and a manual reversing valve 5, and the manual reversing valve 5 is respectively connected to the first closed brake 9-1 and the second closed brake 9-2; the first closed brake The brake 9-1 is connected to the first hydraulic winch 11-1, and the second closed brake 9-2 is connected to the second hydraulic winch 11-2;
[0021] One end of the first hydraulic winch 11-1 is re...
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The invention relates to a double hydraulic drawworks lifting control device. When a drilling rig is hoisting and lowering, oil supply is performed by switching the reversing control plate, so as to realize the functions of synchronous lifting and lowering of the hydraulic winch; the lifting and lowering of the drilling rig During the process, the synchronization deviation value is displayed in real time through the synchronous controller, and the displacement compensation of a single hydraulic winch is performed by operating the reversing control piece, so that it moves up or down synchronously; when the reversing control piece returns to the neutral position, the oil pressure is released , Hydraulic winch brake; the reversing control piece can also control a single hydraulic winch. The invention has the function of synchronous lifting and lowering of the hydraulic winch and the function of automatically compensating the synchronous deviation at the end point of the hydraulic winch. At the same time, it can also realize independent control of a single hydraulic winch to meet the needs of drilling rig installation. The invention also has manual and automatic dual braking systems to ensure Safety issues during the lifting and lowering of the drilling rig.
Description
technical field [0001] The invention belongs to the technical field of petroleum drilling machinery, and in particular relates to a lifting control device for double hydraulic drawworks. Background technique [0002] As a large-tonnage equipment, an oil drilling rig is generally required to be able to lift and lower the drilling rig safely and smoothly under heavy load conditions. The lifting and lowering of the traditional drilling rig is mainly realized by the main drilling drawworks. At this time, all mechanical, electronic control and other equipment must be installed and debugged before the drilling rig can be lifted and lowered. However, with the development of drilling technology, some deep wells Drilling rigs and ultra-deep well drilling rigs are structurally limited in that the main drawworks cannot be used to complete the lifting of the drilling rig. At the same time, as people use the drilling rig, it is required to be lighter and faster to disassemble. Therefore,...
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IPC IPC(8): B66D1/08B66D5/28F15B11/22F15B13/06F15B20/00F15B21/02
CPCB66D1/08F15B11/22F15B13/06F15B21/02B66D5/28F15B20/005
Inventor 刘志林张彩莹张继环段武刘明洋毋冬梅
Owner 中油国家油气钻井装备工程技术研究中心有限公司