Energy-saving drive system for compensation drawworks in offshore drilling
A technology for marine drilling and driving systems, which is applied in the directions of fluid pressure actuation system components, transmission devices, and clockwork mechanisms, etc., can solve the problems of dependence on imports of hydraulic secondary components, poor environmental protection and safety, and occupation of platform work space. , to achieve the effect of improving control performance and energy recovery efficiency, long working life, and avoiding large-scale use
Active Publication Date: 2022-02-01
CHINA UNIV OF PETROLEUM (EAST CHINA)
View PDF6 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
However, there are two problems in this system: on the one hand, hydraulic secondary components rely on imports and are expensive; on the other hand, the energy storage method of high-pressure working gas cylinders has low energy density and large volume, which takes up a lot of working space on the platform and is environmentally friendly. Less sex and safety
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0024] The present invention will be further described below in conjunction with the accompanying drawings and examples. Apparently, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0025] refer to figure 1 , figure 2 As shown, the energy-saving driving system of the offshore drilling compensation drawworks of the present invention includes a constant pressure variable pump 1, a motor 2, an oil tank 6, a pressure sensor, an electromagnetic reversing valve, an electro-hydraulic servo valve, a control hydraulic cylinder, a PLC 13, a motion reference unit 14, Rotary encoder 15, inclination sensor, hydraulic secondary component, flywheel group 19, power-off protection valve, quantitative hydraulic motor 24, variable hyd...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention relates to an energy-saving driving system of a compensating winch for offshore drilling, in particular to a driving device characterized by hydraulic energy recovery and electro-hydraulic control technology. The invention adopts multiple quantitative hydraulic motors and multiple variable hydraulic motors to jointly drive the drawworks to realize the heave compensation function. Realize the switching between the pump working condition and the motor working condition, achieve good energy saving effect and avoid the extensive use of hydraulic secondary components, saving equipment costs. The flywheel and a small amount of hydraulic secondary elements are used to form an energy recovery and storage system, and the size and direction of the swash plate inclination of the hydraulic secondary elements are adjusted in real time according to the pressure signal of the constant pressure network, so as to maintain the pressure stability in the constant pressure network and realize the hydraulic energy and energy. The flexible conversion and storage of the kinetic energy of the flywheel finally realizes the storage, conversion and reuse of the hydraulic energy recovered by the hydraulic motor of the winch.
Description
technical field [0001] The invention relates to an energy-saving driving system of a compensating winch for offshore drilling, in particular to a driving device characterized by hydraulic energy recovery and electro-hydraulic control technology. Background technique [0002] Under the influence of ocean waves, offshore floating drilling platforms and drilling equipment will inevitably produce periodic heave movements, resulting in changes in bottom-hole drilling pressure, increasing drilling costs and risks, and reducing drilling efficiency. Therefore, the floating drilling platform must be equipped with a heave compensation system to stabilize the bottom hole drilling pressure and improve the efficiency and safety of drilling work. [0003] The winch heave compensation device is a high-tech product developed abroad in recent years. Large-scale foreign oil companies have successively developed active compensation winches driven by AC variable frequency motors. The active co...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): B66D1/50B66D1/08B66D5/28B66D5/14F15B21/14F15B21/02F15B13/02F15B1/02F16H33/02
CPCB66D1/50B66D1/08B66D5/28B66D5/14F15B21/14F15B21/02F15B13/02F15B1/024F16H33/02
Inventor 黄鲁蒙高照王培旺张彦廷邓晓光沈蓉赵玉明葛政赵鑫宇
Owner CHINA UNIV OF PETROLEUM (EAST CHINA)