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A monitoring device and its scheme for a crane heave compensation device

A technology of heave compensation and crane, which is applied in the direction of measuring devices and instruments, can solve problems such as damage, mechanical structure fatigue, excessive buckling, etc., and achieve the effects of high measurement accuracy, simple and convenient maintenance, and instant feedback

Active Publication Date: 2020-04-21
SOUTHWEST PETROLEUM UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Long-term frequent movement will inevitably cause fatigue, excessive buckling and even damage to the mechanical structure, which greatly affects the safety of platform operations

Method used

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  • A monitoring device and its scheme for a crane heave compensation device

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Embodiment Construction

[0031] The present invention will be further described below in conjunction with accompanying drawing

[0032] Such as figure 1 , a crane heave compensation device monitoring system, characterized in that: 1 position sensor unit: a lower support rod (1), a laser distance sensor (2) installed on the upper side of the lower support rod (1), an upper support frame ( 3), the laser distance sensor reflection device (4) installed on the lower side of the upper support frame (3); 2 pressure-speed sensor unit: turntable (5), connecting rod rocker (6), connected to the turntable (5) Shaft (7), axial center pressure sensor (8) placed in the middle of shaft (7), magnetoresistor speed sensor (9), magnetoresistor speed sensor matching part (10); 3-link stress and strain measurement unit: connected rod (11), fiber grating sensor (12), heat shrink tube (13), filling resin (14) wrapped on the fiber grating sensor (12), the resin prevents the fiber grating sensor from being polluted or damage...

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Abstract

The invention discloses a monitoring system of a heave compensation device of a crown block and a method thereof. The monitoring system comprises: a position sensor unit 1, a pressure-rotating speed sensor unit 2, a connecting level stress strain measurement unit 3, and a data processing and storage unit 4. The position sensor unit 1 consists of a lower support rod (1), a laser distance sensor (2) installed at the upper side of the lower support rod (1), an upper support frame (3), a laser distance sensor reflecting device (4) installed at the lower side of the upper support frame (3). The pressure-rotating speed sensor unit 2 includes a rotating plate (5), a connecting lever handle (6), a shaft connected to the rotating plate (5), an axis pressure sensor (8) arranged at the center of the shaft (7), a magnetosensitive resistor rotating speed sensor (9), and a magnetosensitive resistor rotating speed sensor mating part (10); and the connecting level stress strain measurement unit 3 consists of a connecting lever (11), a fiber grating sensor (12), a heat-shrinking tube (13), and a filling resin unit (14) wrapping the fiber grating sensor (12). The sensors are installed in a pasting type mounting manner on the premise that the original heave compensation device structure is not changed, so that the original structural performances are not damaged; the operation becomes simple; the measurement precision is high; and the maintenance becomes simple and convenient.

Description

technical field [0001] The invention relates to a monitoring device for a heave compensation device of a drilling platform and its scheme Background technique [0002] The heave compensation device is an important component of the drilling system of the offshore drilling platform. By compensating the heave motion of the floating crown block, the heave motion of the drill pipe can be kept fluctuating within a certain range, and the bottom hole pressure can be stabilized to ensure the normal drilling operation. Take the heave compensation device of the crane as an example. When the heave compensation device is working, the traveling block moves up and down frequently with the hook, and the related connecting rods, bearings, and pulleys will also move accordingly during the movement. Long-term frequent movement will inevitably cause fatigue, excessive buckling and even damage to the mechanical structure, which greatly affects the safety of platform operations. At the same time...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01D21/02
CPCG01D21/02
Inventor 毛良杰杨玉龙曾松
Owner SOUTHWEST PETROLEUM UNIV
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