CN106871967B - Crown block heave compensation device monitoring device and scheme thereof - Google Patents
Crown block heave compensation device monitoring device and scheme thereof Download PDFInfo
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- CN106871967B CN106871967B CN201710195370.9A CN201710195370A CN106871967B CN 106871967 B CN106871967 B CN 106871967B CN 201710195370 A CN201710195370 A CN 201710195370A CN 106871967 B CN106871967 B CN 106871967B
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- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
Abstract
The invention discloses a monitoring system and a method of a crown block heave compensation device, wherein the monitoring system comprises the following steps: 1 position sensor unit: the device comprises a lower support rod (1), a laser distance sensor (2) arranged on the upper side of the lower support rod (1), an upper support frame (3) and a laser distance sensor reflecting device (4) arranged on the lower side of the upper support frame (3); 2 pressure-rotation speed sensor unit: the device comprises a turntable (5), a connecting rod rocking handle (6), a shaft (7) connected with the turntable (5), an axis pressure sensor (8) arranged in the middle of the shaft (7), a magneto-resistor rotating speed sensor (9) and a magneto-resistor rotating speed sensor matching part (10); 3, a connecting rod stress strain measuring unit: the device comprises a connecting rod (11), a fiber grating sensor (12), a heat-shrinkable tube (13) and filling resin (14) wrapped on the fiber grating sensor (12); 4 data processing storage unit. The invention has the advantages that the sensor is installed by adopting a paste type installation method on the basis of not changing the structure of the original heave compensation device, the original structure performance is not damaged, the operation is simple and easy, the measurement precision is high, and the maintenance is simple and convenient.
Description
Technical Field
The invention relates to a monitoring device of a drilling platform heave compensation device and a scheme thereof
Background
The heave compensation device is an important component of a drilling system of an ocean drilling platform, and through heave motion compensation of a floating crown block, the heave motion of a drill rod is kept to fluctuate within a certain range, the drilling pressure at the bottom of a well is stabilized, and normal drilling operation is ensured. Taking a crown block heave compensation device as an example, when the heave compensation device works, a traveling block carries a hook to move up and down frequently, and a connecting rod, a bearing and a pulley which are related in the moving process also move correspondingly. The mechanical structure is fatigued, over-bent and even damaged by frequent movement for a long time, and the safety of the platform operation is greatly influenced. Meanwhile, in order to facilitate improvement and upgrade of the related system, it is necessary to observe the motion state of the heave compensation system. There is therefore a need for a monitoring system to perform monitoring of the mechanics, kinematics, dynamics, structure, etc. of a heave compensation apparatus.
Disclosure of Invention
The invention aims to provide a monitoring system and a monitoring method for a crown block heave compensation device.
The invention is realized by the following scheme: a monitoring system of a crown block heave compensation device is characterized in that 1, a position sensor unit: the device comprises a lower support rod, a laser distance sensor arranged on the upper side of the lower support rod, an upper support frame and a laser distance sensor reflecting device arranged on the lower side of the upper support frame; 2 pressure-rotation speed sensor unit: the rotary table, the connecting rod rocking handle, the shaft connected with the rotary table, the axis pressure sensor arranged in the middle of the shaft, the magneto-resistor rotating speed sensor and the magneto-resistor rotating speed sensor matching part; 3, a connecting rod stress strain measuring unit: the device comprises a connecting rod, a fiber grating sensor, a heat-shrinkable tube and filling resin wrapped on the fiber grating sensor; 4, a data processing and storing unit;
the lower support frame is fixed on the crown block and the derrick; the upper support frame is connected with the heave compensation hydraulic cylinder and moves up and down together with the traveling block and the hook.
The laser distance sensor is arranged on the upper side of the lower support rod, the laser distance sensor reflection device is arranged on the lower side of the upper support frame, and the two devices are correspondingly arranged.
Four rectangular cavities in the axis pressure sensor are distributed in a four-direction array mode, the pressure sensor is installed in the four rectangular cavities in four directions and fixed through wedges.
The magnetic resistance rotating speed sensor is arranged on the outer side of a shaft connected with the turntable, the magnetic resistance rotating speed sensor matching part is arranged on the inner side of the connecting rod rocking handle matched with the shaft, and the rotating speed of the turntable is measured by the mutual movement of the two devices.
The fiber grating sensors are uniformly distributed in four directions of the connecting rod, resin is used for wrapping the connecting rod to avoid pollution or damage, and the whole connecting rod is wrapped by the heat-shrinkable tube to be further reinforced.
The method for monitoring the system of the overhead traveling crane heave compensation device comprises the following steps:
the position sensor unit 1 comprises the steps of:
s1, mounting the laser distance sensor at a proper position of the lower support rod, where the compensation system is not affected;
s2, mounting the laser distance sensor reflection device on the upper support frame at a position corresponding to the laser distance sensor;
and S3, connecting the sensor to a data processing and storing unit, and performing zeroing processing on the sensor through measurement and simulation.
The 2 pressure-speed sensor unit comprises the following steps:
s1, installing pressure sensors in four cavities of the axle center and fixing the pressure sensors by using wedges, wherein the four sensors respectively measure pressure in four directions to form the axle center pressure sensor and install the axle center pressure sensor in the middle of the axle;
s2, installing the relevant lever crank, the shaft and the shaft center pressure sensor at the relevant positions of the system;
s3, adhering a magnetic resistor rotation speed sensor on the outer side of the shaft, and adhering a magnetic resistor rotation speed sensor matching part on the inner ring of the connecting rod rocking handle, so as to measure the rotation speed of the wheel disc;
and S4, connecting the sensor to a data processing and storing unit, and performing zero return processing on the axial pressure sensor and the magneto-resistor rotating speed sensor through measurement and simulation.
The 3 connecting rod stress strain measuring unit comprises the following steps:
s1, pasting the fiber bragg grating sensor on the four directions of the connecting rod, pasting the fiber bragg grating sensor along the connecting rod, wherein the length of the fiber bragg grating sensor is equal to that of the connecting rod;
s2, wrapping the fiber grating sensor with filling resin, wrapping the whole connecting rod with a heat-shrinkable tube, and fixing the fiber grating sensor;
and S3, connecting the leading-out end of the fiber grating sensor to a demodulator, transmitting the signal to a data processing and storing unit, and performing zero returning processing on the sensor through measurement and simulation.
The 4 data processing and storing unit comprises the following steps:
s1, calculating the distance between the upper support frame and the lower support rod according to the information of the laser distance sensor, and analyzing the rigid structure of the heave compensation system to obtain the instant form of the system;
s2, according to the data measured by the axle center pressure sensor, the mechanical properties of the related structure are obtained through calculation;
s3, calculating the rotating speed of each turntable according to the measurement information of the magnetic resistance rotating speed sensor and the instant form of the system in S1; s4, according to the information of each group of fiber bragg grating sensors, performing data processing through modal analysis, calculating the strain condition of each connecting rod, and calculating the stress condition of each connecting rod;
and S5, combining all calculation results, and evaluating the safety of the heave compensation device.
The invention has the following advantages: on the basis of not changing the structure of the original heave compensation device, the sensor is installed by adopting a paste type installation method, the original structural performance is not damaged, the method is simple and easy to operate, the measurement precision is high, the feedback is instant, and the maintenance is simple and convenient.
Drawings
Fig. 1 is a schematic structural view of the present invention, including a partially enlarged view at the wheel axle and a removed cross-sectional view of the connecting rod.
Detailed Description
The invention will be further explained with reference to the drawings
Referring to fig. 1, a monitoring system for a crown block heave compensation device is characterized in that 1, a position sensor unit: the device comprises a lower support rod (1), a laser distance sensor (2) arranged on the upper side of the lower support rod (1), an upper support frame (3) and a laser distance sensor reflecting device (4) arranged on the lower side of the upper support frame (3); 2 pressure-rotation speed sensor unit: the device comprises a turntable (5), a connecting rod rocking handle (6), a shaft (7) connected with the turntable (5), an axis pressure sensor (8) arranged in the middle of the shaft (7), a magneto-resistor rotating speed sensor (9) and a magneto-resistor rotating speed sensor matching part (10); 3, a connecting rod stress strain measuring unit: the optical fiber grating sensor comprises a connecting rod (11), an optical fiber grating sensor (12), a heat-shrinkable tube (13) and filling resin (14) wrapped on the optical fiber grating sensor (12), wherein the resin prevents the optical fiber grating sensor from being polluted or damaged, and the heat-shrinkable tube is further reinforced and protected; and 4, a data processing and storing unit, wherein the data processing unit receives information from each sensor, obtains relevant parameters of the system through calculation, and evaluates the safety of the system.
Laser distance sensor (2) are installed in lower support bar (1) upside, and laser distance sensor reflect meter (4) are installed in upper support frame (3) downside, and the circuit damage is avoided to downside sensor rigid.
As shown in the enlarged partial view of fig. 1: four rectangular cavities in the axis pressure sensor (8) are distributed in a four-direction array mode, and the pressure sensor is installed in the four rectangular cavities in four directions and fixed through wedges.
The magnetic resistance rotating speed sensor (9) is arranged on the outer side of a shaft (7) connected with the turntable (5), the magnetic resistance rotating speed sensor matching part (10) is arranged on the inner side of the connecting rod rocking handle (6) matched with the shaft, and the installation positions of the two devices are corresponding.
As shown in the removed cross-section of fig. 1: the fiber grating sensors (12) are uniformly distributed in four directions of the connecting rod (11) and are fixed in a resin filling and heat shrink tube wrapping mode
The method for monitoring the system of the overhead traveling crane heave compensation device comprises the following steps:
the position sensor unit 1 comprises the steps of:
s1, mounting the laser distance sensor (2) at a proper position of the lower support rod (1) without influencing a compensation system;
s2, mounting the laser distance sensor reflection device (4) on the upper support frame (3) at a position corresponding to the laser distance sensor (2);
and S3, connecting the sensor to a data processing and storing unit, and performing zeroing processing on the sensor through measurement and simulation.
The 2 pressure-speed sensor unit comprises the following steps:
s1, installing pressure sensors in four cavities of the axis and fixing the pressure sensors by using wedges, wherein the four sensors respectively measure pressure in four directions to form an axis pressure sensor (8) and install the axis pressure sensor in the middle of a shaft (7);
s2, installing the relevant rod rocking handle (6), the shaft (7) and the axle center pressure sensor (8) at the relevant positions of the system;
s3, adhering a magnetic resistor rotating speed sensor (9) to the outer side of the shaft (7), and adhering a magnetic resistor rotating speed sensor matching component (10) to the inner ring of the connecting rod rocking handle (6);
and S4, connecting the sensor to a data processing and storing unit, and performing zero return processing on the axial pressure sensor (8) and the magneto-resistor rotating speed sensor (9) through measurement and simulation.
The 3 connecting rod stress strain measuring unit comprises the following steps:
s1, pasting the fiber bragg grating sensor (12) on the four directions of the connecting rod (11), pasting along the connecting rod, wherein the length of the fiber bragg grating sensor is equal to that of the connecting rod;
s2, wrapping the fiber grating sensor (12) with filling resin (14), wrapping the whole connecting rod (11) with a heat-shrinkable tube (13), and fixing the fiber grating sensor (12);
and S3, connecting the leading-out end of the fiber grating sensor (12) to a demodulator, transmitting the signal to a data processing and storing unit, and performing zero returning processing on the sensor through measurement and simulation.
The 4 data processing and storing unit comprises the following steps:
s1, calculating the distance between the upper support frame (3) and the lower support rod (1) according to the information of the laser distance sensor (2), and analyzing the rigid structure of the heave compensation system to obtain the instant form of the system;
s2, according to the data measured by the axle center pressure sensor (8), the mechanical property of the related structure is obtained through calculation;
s3, calculating the rotating speed of each turntable (5) according to the relevant information of the magnetic resistance rotating speed sensor (9) and the instant form of the system in S1;
s4, according to the information of each group of fiber bragg grating sensors (12), calculating the strain condition of each connecting rod, and calculating the stress condition of each connecting rod;
and S5, combining all calculation results, and evaluating the safety of the heave compensation device.
Claims (3)
1. The utility model provides a crown block heave compensation device monitoring system which characterized in that: a position sensor unit: the device comprises a lower support rod (1), a laser distance sensor (2) arranged on the upper side of the lower support rod (1), an upper support frame (3) and a laser distance sensor reflecting device (4) arranged on the lower side of the upper support frame (3); pressure-rotation speed sensor unit: the device comprises a turntable (5), a connecting rod rocking handle (6), a shaft (7) connected with the turntable (5), an axis pressure sensor (8) arranged in the middle of the shaft (7), a magneto-resistor rotating speed sensor (9) and a magneto-resistor rotating speed sensor matching part (10); connecting rod stress strain measurement unit: the device comprises a connecting rod (11), a fiber grating sensor (12), a heat-shrinkable tube (13) and filling resin (14) wrapped on the fiber grating sensor (12); a data processing storage unit;
four rectangular cavities in the axis pressure sensor (8) are distributed in a four-direction array, and the pressure sensor is arranged in the four rectangular cavities in four directions and is fixed through a wedge;
the fiber grating sensors (12) are uniformly distributed in four directions of the connecting rod (11) and are fixed in a resin filling and heat shrink tube wrapping mode;
the fiber grating sensors (12) are uniformly distributed in four directions of the connecting rod (11) and are fixed in a resin filling and heat shrink tube wrapping mode;
the use method of the monitoring system comprises the following steps:
the position sensor unit includes the steps of:
s1, mounting the laser distance sensor (2) at a proper position of the lower support rod (1) without influencing a compensation system;
s2, mounting the laser distance sensor reflection device (4) on the upper support frame (3) at a position corresponding to the laser distance sensor (2);
s3, connecting the sensor to a data processing and storing unit, and carrying out zeroing processing on the sensor through measurement and simulation;
the pressure-rotation speed sensor unit comprises the following steps:
s1, installing pressure sensors in four cavities of the axis and fixing the pressure sensors by using wedges, wherein the four sensors respectively measure pressure in four directions to form an axis pressure sensor (8) and install the axis pressure sensor in the middle of a shaft (7);
s2, installing the relevant rod rocking handle (6), the shaft (7) and the axle center pressure sensor (8) at the relevant positions of the system;
s3, adhering a magnetic resistor rotating speed sensor (9) to the outer side of the shaft (7), and adhering a magnetic resistor rotating speed sensor matching component (10) to the inner ring of the connecting rod rocking handle (6);
s4, connecting the sensor to a data processing and storing unit, and performing zero return processing on the axial pressure sensor (8) and the magneto-resistor rotating speed sensor (9) through measurement and simulation;
the connecting rod stress-strain measuring unit comprises the following steps:
s1, pasting the fiber bragg grating sensor (12) on the four directions of the connecting rod (11), pasting along the connecting rod, wherein the length of the fiber bragg grating sensor is equal to that of the connecting rod;
s2, wrapping the fiber grating sensor (12) with filling resin (14), wrapping the whole connecting rod (11) with a heat-shrinkable tube (13), and fixing the fiber grating sensor (12);
s3, connecting the leading-out end of the fiber grating sensor (12) to a demodulator, transmitting the signal to a data processing and storing unit, and performing zero returning processing on the sensor through measurement and simulation;
the data processing and storing unit comprises the following steps:
s1, calculating the distance between the upper support frame (3) and the lower support rod (1) according to the information of the laser distance sensor (2), and analyzing the rigid structure of the heave compensation system to obtain the instant form of the system;
s2, according to the data measured by the axle center pressure sensor (8), the mechanical property of the related structure is obtained through calculation;
s3, calculating the rotating speed of each turntable (5) according to the relevant information of the magnetic resistance rotating speed sensor (9) and the instant form of the system in S1;
s4, according to the information of each group of fiber bragg grating sensors (12), calculating the strain condition of each connecting rod, and calculating the stress condition of each connecting rod;
and S5, combining all calculation results, and evaluating the safety of the heave compensation device.
2. The crown block heave compensation apparatus monitoring system according to claim 1, wherein: the magneto-resistor rotating speed sensor (9) is arranged on the outer side of a shaft (7) connected with the turntable (5).
3. The crown block heave compensation apparatus monitoring system according to claim 1, wherein: the matching part (10) of the magnetic resistance rotating speed sensor is arranged at the inner side of the connecting rod rocking handle (6) matched with the shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710195370.9A CN106871967B (en) | 2017-03-29 | 2017-03-29 | Crown block heave compensation device monitoring device and scheme thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710195370.9A CN106871967B (en) | 2017-03-29 | 2017-03-29 | Crown block heave compensation device monitoring device and scheme thereof |
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| CN106871967A CN106871967A (en) | 2017-06-20 |
| CN106871967B true CN106871967B (en) | 2020-04-21 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203476248U (en) * | 2013-09-30 | 2014-03-12 | 四川宏华石油设备有限公司 | Semi-active type crown block heave compensation device |
| CN203704971U (en) * | 2013-12-10 | 2014-07-09 | 武汉飞恩微电子有限公司 | A sensor system used for engineering mechanical failure detection |
| CN105398961A (en) * | 2015-12-22 | 2016-03-16 | 浙江大学 | Test stand for video-ranging offshore platform crane heave compensation control system |
| CN106321534A (en) * | 2016-09-21 | 2017-01-11 | 中国石油大学(华东) | Heave compensation device of hook block assembly for marine floating drilling |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8955602B2 (en) * | 2010-11-19 | 2015-02-17 | Letourneau Technologies, Inc. | System and methods for continuous and near continuous drilling |
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- 2017-03-29 CN CN201710195370.9A patent/CN106871967B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203476248U (en) * | 2013-09-30 | 2014-03-12 | 四川宏华石油设备有限公司 | Semi-active type crown block heave compensation device |
| CN203704971U (en) * | 2013-12-10 | 2014-07-09 | 武汉飞恩微电子有限公司 | A sensor system used for engineering mechanical failure detection |
| CN105398961A (en) * | 2015-12-22 | 2016-03-16 | 浙江大学 | Test stand for video-ranging offshore platform crane heave compensation control system |
| CN106321534A (en) * | 2016-09-21 | 2017-01-11 | 中国石油大学(华东) | Heave compensation device of hook block assembly for marine floating drilling |
Non-Patent Citations (1)
| Title |
|---|
| 半潜式钻井平台姿态运动监测系统研究;徐涛;《船舶与海洋工程》;20160228;第32卷(第2期);38-44 * |
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