CN113465966A - Concrete column type swing test device of offshore high-rise tower - Google Patents
Concrete column type swing test device of offshore high-rise tower Download PDFInfo
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- CN113465966A CN113465966A CN202110668310.0A CN202110668310A CN113465966A CN 113465966 A CN113465966 A CN 113465966A CN 202110668310 A CN202110668310 A CN 202110668310A CN 113465966 A CN113465966 A CN 113465966A
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- G—PHYSICS
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- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
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- G—PHYSICS
- G01—MEASURING; TESTING
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- G01M99/007—Subject matter not provided for in other groups of this subclass by applying a load, e.g. for resistance or wear testing
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- G—PHYSICS
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- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02C—CAPTURE, STORAGE, SEQUESTRATION OR DISPOSAL OF GREENHOUSE GASES [GHG]
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Abstract
The invention discloses a concrete column type swing test device for a marine high-rise tower, and aims to provide a device capable of reducing the inertia moment when the tower swings and improving the safety. Comprises a tower, a swing mechanism and a protection supporting mechanism. The protection support mechanism comprises a regular triangular prism-shaped steel structure frame formed by connecting three upright posts and a plurality of cross beams, a protection support tower hoop and a flexible support connecting unit; the lower end of each upright post is respectively and vertically arranged on the upper end surface of the concrete column, and the three concrete columns and the regular triangular prism-shaped steel structural frame form a regular triangular prism-shaped supporting structure. The swing mechanism comprises a swing tower hoop, a cross hinge platform, a cross hinge, a base and a swing driving unit. The telescopic action of the swing driving unit and the rotating action of the cross hinge are cooperated to make the tower generate two-degree-of-freedom motion of rolling and pitching. The horizontal height of the swing driving mechanism is increased by adopting the concrete column in the device, the inertia moment when the tower swings is reduced, and the use is safe and reliable.
Description
Technical Field
The invention relates to the technical field of offshore oil and gas exploitation and the technical field of motion simulation, in particular to a swing test device of a high-rise reaction tower on a floating production storage and unloading device.
Background
With the continuous progress of energy technology, offshore oil and gas fields are continuously developed and utilized. The floating production storage and unloading device is an offshore oil and gas field development device which integrates natural gas pretreatment, liquefaction, storage, loading and unloading and export. Because most of oil gas produced from the seabed contains acidic gases such as carbon dioxide, hydrogen sulfide and the like, the existence of the acidic gases can cause the problems of corrosion of storage and transportation pipelines, reduction of heat value of fuel gas, generation of hydrates and the like, and therefore, the natural gas needs to be deacidified in a pretreatment link. The main equipment for absorbing acid gas and oxidizing and regenerating the absorbent is generally a long and thin high tower structure according to the deacidification process requirement. However, unlike conventional onshore plants, the floating production storage and offloading unit generates a certain response motion under the influence of environmental factors such as wind, waves, currents, etc., wherein the roll and pitch motions of the vessel have a significant influence on the reaction performance of the tower. Therefore, the separation effect of each layer of medium of the reaction tower of the floating production storage and unloading device under the conditions of rolling and pitching motion needs to be tested and researched.
Most of these tests are model tests, but the results of the model tests are necessarily deviated from those of the actual tower tests. The existing swinging device consists of an upper platform, a lower platform and a driving device, for swinging of a high-rise tower, the gravity center of the tower is too high, the gravity center of the tower and the driving device are not in the same plane, so that the inertia moment is increased, the torque requirement on the driving device is increased, the equipment and construction cost of the swinging device is greatly increased, and meanwhile, the safety of the tower during swinging is difficult to guarantee due to the too high gravity center.
Disclosure of Invention
The invention aims to provide a concrete column type swing test device for an offshore high-rise tower, which can reduce the inertia moment when the tower swings and improve the safety, aiming at the technical defects of large torque and insufficient safety of a swing device caused by overhigh center of gravity of the tower in the prior art.
The technical scheme adopted for realizing the purpose of the invention is as follows:
a concrete column type swing test device for an offshore high-rise tower comprises the tower, a swing mechanism and a protection supporting mechanism; the protection support mechanism comprises a regular triangular prism-shaped steel structure frame formed by connecting three upright posts and a plurality of cross beams, a protection support tower hoop and a flexible support connecting unit; the flexible supporting and connecting unit consists of three dampers; the protective support tower is hooped on the outer wall of the tower in a hooped mode, one end of each damper is fixedly connected with the protective support tower hoop, connecting points of the three dampers are located at three angular points of a regular triangle inscribed in the protective support tower hoop, the other end of each damper is fixed on three corresponding beams forming the regular triangle respectively, and the three dampers, the protective support tower hoop and the corresponding beams are located in the same plane; the lower end of each upright post is respectively and vertically arranged on the upper end surface of a concrete column, and the three concrete columns and the regular triangular prism-shaped steel structure frame form a regular triangular prism-shaped supporting structure; the swing mechanism comprises a swing tower hoop, a cross hinge platform, a cross hinge, a base and a swing driving unit, wherein the swing driving unit consists of three swing actuators, and each swing actuator is a linear telescopic actuator; the tower is fixedly arranged on the cross hinge platform, and the cross hinge is arranged between the cross hinge platform and the base; the swing tower is tightly hooped on the outer wall of the tower, one end of each swing actuator is hinged with the swing tower hoop, the other end of each swing actuator is hinged with the corresponding concrete column, and the centers of gravity of the swing actuators, the swing tower hoops and the tower are on the same plane; the telescopic action of the swing actuator and the rotating action of the cross hinge are cooperated to enable the tower to generate two-degree-of-freedom motion of rolling and pitching.
The concrete column is a right-angle trapezoid body.
The swing actuator consists of a driving cylinder and a telescopic rod; the driving cylinder of the swing actuator is hinged to the concrete column, and the telescopic rod of the swing actuator is hinged to the swing tower hoop.
The longitudinal section and the cross section of the base are both trapezoidal.
The cross beam and the upright post are of square hollow tube structures and are connected into a whole through a connecting piece.
The number of the protective support tower hoops is 2, and the protective support tower hoops are respectively installed at the heights of the towers 2/3 and 1/3 above the plane where the swing actuator is located.
The stand pass through the bolt install in concrete column upper end, every the outside of stand has welded a plurality of backup pads respectively.
The damper is a spring damper or a viscous damper.
Compared with the prior art, the invention has the beneficial effects that:
1. the horizontal height of the swing driving mechanism is increased by adopting the arrangement of the concrete column, the gravity center of the tower and the driving mechanism are positioned in the same plane, the torque required by the swing actuator is greatly reduced, the inertia moment when the tower swings is reduced, and the base in the swing driving mechanism is used for supporting the tower, so that the driving load of the swing actuator is reduced to a certain extent, the use safety and reliability are greatly improved, and meanwhile, the equipment and the construction cost are saved.
2. The protective supporting mechanism in the tower swing test device fastens the tower through the tower hoop, adopts the regular triangular prism-shaped supporting frame, and arranges the damper in the frame, the protective supporting mode is combined rigidly and flexibly, the tower hoop, the cross beam and the upright post provide rigid support for the tower, and the damper is matched with the swing motion of the tower, so that the use safety and reliability are improved. In addition, the protection supporting device is flexible and convenient to mount and dismount, and secondary welding processing of the tower is avoided.
3. The tower swing test device provided by the invention adopts the combination of telescopic drive and the cross hinge to generate two-degree-of-freedom motion of rolling and pitching, and has the advantages of simple structure, safety in use and low cost.
Drawings
FIG. 1 is a general schematic view of a concrete column swing test device of the offshore tower of the present invention;
fig. 2 is a top view of the concrete column type sway testing device of the offshore high tower of the present invention.
Detailed Description
The invention is described in detail below with reference to the figures and specific examples.
The concrete column type swing test device of the offshore high-rise tower is shown in the figures 1-2, and comprises a tower 1, a swing mechanism and a protection supporting mechanism.
The top and the bottom of the tower 1 are respectively provided with two openings, the top is respectively provided with a medium A inlet and a medium B outlet, the bottom is respectively provided with a medium A outlet and a medium B inlet, and the medium A and the medium B are two reaction media inside the tower and comprise but are not limited to raw material gas, acid gas, amine liquid and the like. Other equipment components such as manholes, monitoring holes and the like are omitted. The bottom of the tower 1 is in the form of a skirt.
The protection support mechanism comprises a regular triangular prism-shaped steel structure frame formed by connecting three upright posts 4 and a plurality of cross beams 3, a protection support tower hoop 6 and a flexible support connecting unit; the flexible support connecting unit comprises three attenuator 7, the protection support tower hoop 6 lock ring in on the outer wall of tower 1, every the one end of attenuator 7 with the protection support tower hoop 6 fixed connection, it is three the tie point of attenuator 7 is located the three angular point of protection support tower hoop 6 inscription regular triangle, every the other end of attenuator 7 is respectively through three that the bolt fastening is corresponding to constitute regular triangle on the crossbeam 3, the central point that attenuator 7 and every crossbeam 3's tie point are located every crossbeam puts. The three dampers 7, the protective support tower hoops 6 and the corresponding cross beams 3 are positioned in the same plane. The lower end of each upright post 4 is respectively and vertically arranged on the upper end surface of a concrete post 14, and the three concrete posts 14 and the regular triangular prism-shaped steel structural frame form a regular triangular prism-shaped supporting structure. The damper 7 is used for reducing the vibration of the tower, can provide tension and pressure effects, and can be selected from a spring damper, a viscous damper and the like.
The swing mechanism comprises a swing tower hoop 16, a cross hinge platform 12, a cross hinge 13, a base 15 and a swing driving unit, wherein the swing driving unit consists of three swing actuators 17, and the swing actuators are linear telescopic actuators. The tower 1 is fixedly installed on the cross hinge platform 12 through a reinforcing bolt 11, and the cross hinge 13 is installed between the cross hinge platform 12 and the base 15. The cross hinge 13 can rotate back and forth and left and right, and the base 15 is used for supporting the weight of the cross hinge platform 12 and the tower 1 and sharing the motion load of the tower. The base 15 is fixed on a concrete foundation by anchor bolts. The longitudinal section and the cross section of the base 15 are preferably trapezoidal, so that the rotation range of the cross hinge can meet the swing requirement of the tower.
The swing tower hoop 16 is tightly hooped on the outer wall of the tower 1, one end of each swing actuator 17 is hinged with the swing tower hoop 16 through a hook hinge, the other end of each swing actuator 17 is hinged with the corresponding concrete column 14 through a hook hinge, and the gravity centers of the swing actuators 17, the swing tower hoops 16 and the tower 1 are on the same plane. The telescopic action of the swing actuator 17 and the rotating action of the cross hinge 13 cooperate to enable the tower 1 to generate two-degree-of-freedom motion of rolling and pitching.
In this embodiment, the concrete column 14 is a right-angle trapezoid.
The swing actuator may be any one of hydraulically, pneumatically or electrically driven. In this embodiment, the swing actuator 17 is composed of a driving cylinder 9 and an expansion rod 10. The driving cylinder 9 of the swing actuator is hinged to the concrete column 14 through a hook joint, and the telescopic rod 10 of the swing actuator is hinged to the swing tower hoop 16 through a hook joint.
In this embodiment, the cross beam 3 and the upright post 4 are both of a square hollow tube structure and are connected into a whole through a connecting piece 5.
In this embodiment, it is further preferable that the number of the protection support tower hoops 6 is 2, and the protection support tower hoops are respectively installed at the heights of the towers 2/3 and 1/3 above the plane of the swing actuator 17. The arrangement of the protective support tower hoop avoids secondary welding treatment on the tower directly, is convenient and efficient, and prolongs the service life of the tower.
Further, the upright columns 4 are mounted at the upper ends of the concrete columns 14 through bolts, and a plurality of support plates 8 are welded to the outer sides of the upright columns 4 respectively to increase the strength of the upright columns 4.
The following specifically describes an installation procedure of the concrete column swing test apparatus for the offshore high tower.
Step 1, preparing a concrete foundation in an open field, and installing a base 15 on the concrete foundation poured in advance through foundation bolts;
and 9, checking to determine that the protective supporting device is well installed, and then unlocking the crane to control the tower 1.
After the concrete column type sway test device of the offshore high-rise tower is installed, a tower sway test procedure and a sway device control method are explained below.
1. The tower medium opening 2 is connected with other reaction devices and medium storage devices by pipelines, so that the reaction is closed and continuous. And arranging corresponding medium detection and monitoring devices at the position of the tower medium hole.
2. And opening a valve port of the pipeline, and starting the swing mechanism after the reaction lasts for a period of time and reaches a stable state.
3. The driving system of the swing mechanism is controlled by an upper computer, and the parameters of the motion amplitude, the frequency and the phase position of the rolling and pitching of the floating production storage and unloading device are input into the software of the upper computer, and the parameters of the motion depend on the environmental conditions such as wind, wave, flow and the like, the shape of the ship, the draught and other factors.
4. According to different parameters of the tower in rolling and pitching motions, a closed-loop PID algorithm is adopted to control the stretching amount of the three telescopic rods 10, and the cross hinge 13 assists the telescopic rods to rotate, so that the tower generates preset rolling and pitching motions.
The upper computer sends out an instruction, three driving cylinders push corresponding telescopic rods to generate corresponding telescopic amounts according to different telescopic amounts, the telescopic rods move the tower to generate corresponding motion through the connected swing tower belts, and meanwhile, the cross hinges assist the telescopic rods to rotate, so that the tower 1 generates two-degree-of-freedom motion of rolling and pitching. The damper is used as a flexible support of the whole protection support device, and when the tower generates certain rolling and pitching motions, the damper generates corresponding telescopic displacement.
5. Recording and analyzing data of a medium detection and monitoring point of the tower 1, and researching the medium separation effect and the tower reaction performance in the upper tower of the floating production storage and unloading device under different offshore environment conditions.
The swing test device for the performance research of the high-rise reaction tower on the offshore oil and natural gas floating production storage and unloading device adopts the arrangement of the concrete column to increase the horizontal height of the swing driving mechanism, so that the center of gravity of the swing actuator and the center of gravity of the tower are in the same plane, the torque required by the swing actuator is greatly reduced, the inertia moment when the tower swings is reduced, and the base in the swing driving mechanism is used for supporting the tower, thereby reducing the driving load of the swing actuator to a certain extent, greatly improving the use safety and reliability, and saving the equipment and the construction cost. Meanwhile, the cross hinge is matched with the telescopic rod to stretch, so that the tower can generate two-degree-of-freedom motion like rolling and pitching on the floating production storage and unloading device. In addition, the protection support mode is combined rigidly and flexibly, the tower hoop, the cross beam and the upright post provide rigid support for the tower, and the damper is matched with the swinging motion of the tower, so that the use safety and reliability are improved. The device can be used for experimental study of the change of the medium separation effect inside the tower of the high-rise tower on the floating production storage and unloading device under different swing working conditions, and is beneficial to improving the process performance of the tower and improving the production efficiency of the floating production storage and unloading device.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (8)
1. A concrete column type swing test device of an offshore high-rise tower is characterized by comprising a tower, a swing mechanism and a protection supporting mechanism; the protection support mechanism comprises a regular triangular prism-shaped steel structure frame formed by connecting three upright posts and a plurality of cross beams, a protection support tower hoop and a flexible support connecting unit; the flexible supporting and connecting unit consists of three dampers; the protective support tower is hooped on the outer wall of the tower in a hooped mode, one end of each damper is fixedly connected with the protective support tower hoop, connecting points of the three dampers are located at three angular points of a regular triangle inscribed in the protective support tower hoop, the other end of each damper is fixed on three corresponding beams forming the regular triangle respectively, and the three dampers, the protective support tower hoop and the corresponding beams are located in the same plane; the lower end of each upright post is respectively and vertically arranged on the upper end surface of a concrete column, and the three concrete columns and the regular triangular prism-shaped steel structure frame form a regular triangular prism-shaped supporting structure; the swing mechanism comprises a swing tower hoop, a cross hinge platform, a cross hinge, a base and a swing driving unit, wherein the swing driving unit consists of three swing actuators, and each swing actuator is a linear telescopic actuator; the tower is fixedly arranged on the cross hinge platform, and the cross hinge is arranged between the cross hinge platform and the base; the swing tower is tightly hooped on the outer wall of the tower, one end of each swing actuator is hinged with the swing tower hoop, the other end of each swing actuator is hinged with the corresponding concrete column, the centers of gravity of the swing actuators, the swing tower hoop and the tower are on the same plane, and the telescopic action of the swing actuators and the rotating action of the cross hinges cooperatively enable the tower to generate two-degree-of-freedom motion of rolling and pitching.
2. The offshore high tower concrete column sway testing apparatus of claim 1, wherein said concrete column is a right angle trapezoid.
3. The concrete column type swing test device for the offshore high-rise tower according to claim 1 or 2, wherein the swing actuator is composed of a driving cylinder and a telescopic rod; the driving cylinder of the swing actuator is hinged to the concrete column, and the telescopic rod of the swing actuator is hinged to the swing tower hoop.
4. The offshore high tower concrete column swing test device of claim 3, wherein the base is trapezoidal in both longitudinal and cross-sectional shapes.
5. The offshore high-rise tower concrete column type sway testing device of claim 4, wherein the beams and the columns are of square hollow tube structures and are connected into a whole through connecting pieces.
6. The device for testing concrete column-type sway of an offshore high-rise tower of claim 4, wherein the number of the protective support hoops is 2, and the protective support hoops are respectively installed at the heights of the tower 2/3 and 1/3 above the plane of the sway actuator.
7. The offshore high-rise tower concrete column swing test device of claim 4, wherein the columns are mounted on the upper ends of the concrete columns through bolts, and a plurality of support plates are welded to the outer sides of each column respectively.
8. The offshore high tower concrete column sway testing apparatus of claim 4, wherein said damper is a spring damper or a viscous damper.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110668310.0A CN113465966B (en) | 2021-06-16 | 2021-06-16 | Concrete column type swing test device of offshore high-rise tower |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110668310.0A CN113465966B (en) | 2021-06-16 | 2021-06-16 | Concrete column type swing test device of offshore high-rise tower |
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| CN113465966A true CN113465966A (en) | 2021-10-01 |
| CN113465966B CN113465966B (en) | 2022-06-07 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114577062A (en) * | 2022-02-25 | 2022-06-03 | 西安航天发动机有限公司 | Truss type structure loading test platform |
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| CN113465966B (en) | 2022-06-07 |
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