CN110370015B - Installation tool for large-scale structure of offshore platform - Google Patents
Installation tool for large-scale structure of offshore platform Download PDFInfo
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- CN110370015B CN110370015B CN201910721543.5A CN201910721543A CN110370015B CN 110370015 B CN110370015 B CN 110370015B CN 201910721543 A CN201910721543 A CN 201910721543A CN 110370015 B CN110370015 B CN 110370015B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P19/00—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
- B23P19/10—Aligning parts to be fitted together
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B1/00—Installations or systems with accumulators; Supply reservoir or sump assemblies
- F15B1/02—Installations or systems with accumulators
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
- F15B11/16—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors
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Abstract
The invention provides an installation tool for large structures of offshore platforms, wherein a hydraulic actuating mechanism and a hydraulic actuating mechanism at a rotating end are arranged on the outer walls of two corresponding sides of an upper large structure, and a rotating mechanism and a hydraulic motor are arranged on the outer wall of a lower large structure at the same side as the hydraulic actuating mechanism; the centering hydraulic actuating mechanism is arranged on the outer wall of the large structure at the lower part on the same side as the rotating end actuating mechanism; a piston rod of the hydraulic actuating mechanism penetrates into the rotating mechanism and is fixed through a sliding clamping jaw, and a T-shaped piston rod of the rotating mechanism is connected with a driving shaft of a hydraulic motor; the piston rod of the hydraulic actuating mechanism at the rotating end penetrates through the centering hydraulic actuating mechanism shell and abuts against the inner bottom of the centering hydraulic actuating mechanism shell; the hydraulic rotation control system controls the hydraulic actuating mechanism and the hydraulic motor to act to drive the rotating mechanism to rotate the large-sized structure, and the hydraulic locking control system controls the hydraulic actuating mechanism at the rotating end to act and center the centering hydraulic actuating mechanism, so that the large-sized structure is positioned quickly, simply and conveniently, the construction risk is reduced, and the construction period is shortened.
Description
Technical Field
The invention relates to an installation tool for a large structure of an offshore platform.
Background
With the pressure drop of the well head in recent years, a plurality of wet gas compressors are required to be added on the platform, so that the purpose of increasing the export natural gas is achieved. Considering that a plurality of compressors are driven by a gas turbine, each unit is provided with a smoke exhaust system, the diameter of a large structure matched with each unit reaches 3m, the height of the large structure reaches 18m, and the distance between the large structures is less than 5 m. If the scheme of land installation and offshore integral hoisting in place is adopted, the hoisting steel wire rope and the large-sized structure can collide, so that the scheme of offshore independent hoisting and installation of the large-sized structure can be adopted. However, since a collision easily occurs under the influence of a sea storm and a flow, and the risk of collision can be reduced, and the consumption of manpower and material resources for installation can be reduced, it is necessary to design an appropriate installation tool.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provide an installation tool for a large structure of an offshore platform, which can accurately and quickly position and install the large structure in the wind, wave and current environment of the marine environment, so as to achieve the purposes of avoiding collision and saving construction period and cost.
The purpose of the invention is realized by the following technical scheme.
The invention relates to an installation tool for large-scale structures of offshore platforms, which is characterized in that: the rotating end hydraulic actuating mechanism and the hydraulic actuating mechanism are respectively arranged on the outer walls of two corresponding sides of the upper large-scale structure, and the rotating mechanism and the hydraulic motor are respectively arranged on the outer wall of the lower large-scale structure on the same side with the hydraulic actuating mechanism; the centering hydraulic actuating mechanism is arranged on the outer wall of the large-scale structure at the lower part on the same side as the rotating end hydraulic actuating mechanism;
a piston rod of the hydraulic actuating mechanism penetrates into the rotating mechanism to abut against a T-shaped piston rod of the rotating mechanism and is fixedly locked through a sliding clamping jaw of the rotating mechanism, and the T-shaped piston rod of the rotating mechanism is connected with a driving shaft of a hydraulic motor; a piston rod of the rotating end hydraulic actuating mechanism penetrates through a horn mouth of a shell of the centering hydraulic actuating mechanism and abuts against the inner bottom of the shell of the centering hydraulic actuating mechanism;
the hydraulic control system comprises a hydraulic rotation control system and a hydraulic locking control system;
the hydraulic rotary control system consists of a hydraulic oil tank, an overflow valve, a hydraulic pump, an energy accumulator, a pressure gauge, a pressure regulating valve, a two-position three-way electromagnetic valve, a first two-position four-way electromagnetic valve, a hydraulic actuating mechanism, a hydraulic motor, a speed regulating valve and a second two-position four-way electromagnetic valve; the outlet of the hydraulic oil tank is connected with the suction inlet of the hydraulic pump through a hydraulic pipeline, and the outlet of the hydraulic pump is connected in series with an energy accumulator, a pressure gauge, a pressure regulating valve, a two-position three-way electromagnetic valve, a first two-position four-way electromagnetic valve and the oil delivery port of the hydraulic actuating mechanism through the hydraulic pipeline; the hydraulic pipeline is connected with an overflow valve in parallel for overflowing to return to a hydraulic oil tank; the two-position three-way electromagnetic valve is connected with the speed regulating valve, the second two-position four-way electromagnetic valve and the hydraulic motor in series through a hydraulic pipeline;
the hydraulic locking control system consists of a hydraulic oil tank, an overflow valve, a hydraulic pump, an energy accumulator, a pressure gauge, a pressure regulating valve, a two-position three-way electromagnetic valve, a first two-position four-way electromagnetic valve, a rotating end hydraulic actuating mechanism, a locking hydraulic actuating mechanism, a speed regulating valve and a two-position four-way electromagnetic valve group; the outlet of the hydraulic oil tank is connected with the suction inlet of the hydraulic pump through a hydraulic pipeline, and after the hydraulic oil is pressurized by the hydraulic pump, the outlet of the hydraulic pump is connected in series with the energy accumulator, the pressure gauge, the pressure regulating valve, the two-position three-way electromagnetic valve, the first two-position four-way electromagnetic valve and the oil delivery port of the hydraulic actuating mechanism at the rotating end through the hydraulic pipeline; the hydraulic pipeline is connected with an overflow valve in parallel and used for overflowing to return to a hydraulic oil tank; the two-position three-way electromagnetic valve is also connected in parallel with the two-position four-way electromagnetic valve group and the locking hydraulic actuating mechanism through a hydraulic pipeline and a speed regulating valve.
The installation tool for large-scale structures on offshore platforms comprises:
the hydraulic actuating mechanism is a commercially available hydraulic actuating element for converting hydraulic energy into mechanical energy, and a shell of the hydraulic actuating mechanism is fixedly welded with the outer wall of the upper large-scale structure through a support and is connected with a valve port of a first two-position four-way electromagnetic valve in a hydraulic control system through a hydraulic pipeline;
the rotating mechanism comprises a shell, a hydraulic cylinder, a locking hydraulic actuating mechanism and a sliding jaw; the shell is a hollow cylinder with two open ends; one end of a piston rod of the hydraulic cylinder is welded with a steel plate and is a T-shaped piston rod, one end of the T-shaped piston rod, which is provided with the steel plate, is positioned in the shell, the other end of the T-shaped piston rod penetrates through the outer part of the shell, the steel plate arranged at the end part of the T-shaped piston rod is a circular steel plate with the diameter corresponding to the inner diameter of the shell, a radial slide way is arranged on the plate surface of the steel plate, which deviates from a T-shaped piston rod body, at every 90-degree position; the locking hydraulic actuating mechanism is composed of four hydraulic cylinders, bases of the four hydraulic cylinders are respectively welded at the end parts of the four slideways departing from the center of the steel plate, and piston rods of the four hydraulic cylinders are respectively welded and fixed with the tops of the four sliding clamping jaws; the bottom of the sliding clamping jaw corresponds to the shape of the groove of the slideway, so that the sliding clamping jaw can move on the slideway to hold a piston rod of the hydraulic actuating mechanism tightly; the outer wall of one side of the rotating mechanism, which is parallel to the T-shaped piston rod, is fixed with the outer wall of the large-scale structure through a support, and one end of the T-shaped piston rod, which penetrates out of the shell, is positioned below the shell and is welded with a driving shaft of the hydraulic motor into a whole;
the hydraulic motor is a commercially available execution element in a hydraulic control system, and a shell of the hydraulic motor is welded and fixed with the outer wall of the lower large structure below the rotating mechanism through a support; the hydraulic pump converts hydraulic pressure energy provided by the hydraulic pump into torque and rotating speed mechanical energy output by an output shaft of the hydraulic pump; liquid is used as a medium for transmitting force and moving, the pressure of the liquid is changed, and the rotor generates torque through unbalanced stress; a driving shaft of the hydraulic motor is welded with the T-shaped piston rod into a whole; the hydraulic motor oil feeding port and the oil return port are connected with a second two-position four-way electromagnetic valve in the hydraulic system through hydraulic pipelines; the shell of the rotating end hydraulic actuating mechanism is fixed on the outer wall of the upper large structure on the opposite side of the hydraulic actuating mechanism through a bracket in a welding manner; the rotating end hydraulic actuating mechanism is connected with the centering hydraulic actuating mechanism through a piston rod of the rotating end hydraulic actuating mechanism; an oil feeding port of the hydraulic actuating mechanism at the rotating end is sequentially connected with a first two-position four-way electromagnetic valve, a two-position three-way electromagnetic valve, a pressure regulating valve, an energy accumulator, a hydraulic pump and a hydraulic oil tank in series, and an oil return port of the hydraulic actuating mechanism is connected with a valve port of the first two-position four-way electromagnetic valve through a hydraulic pipeline;
the centering hydraulic actuating mechanism is a hollow cylindrical shell with a horn-shaped opening at the upper end, the bottom end of the shell is a closed end, and the shell is welded on the outer wall of the lower large-scale structure at the same side as the rotating end hydraulic actuating mechanism through a support; the piston rod of the hydraulic actuating mechanism at the rotating end is inserted into the center part of the inner bottom of the centering hydraulic actuating mechanism.
The installation tool for large-scale structures on offshore platforms comprises:
the hydraulic pump of the hydraulic rotary control system is driven by the motor to pressurize hydraulic oil in the hydraulic oil tank, and the pressure is stabilized through the energy accumulator and the pressure regulating valve; when the left valve position of the two-position three-way electromagnetic valve is in place, the left valve position of the first two-position four-way electromagnetic valve is in place, the hydraulic actuating mechanism is pushed outwards, and a piston rod of the hydraulic actuating mechanism is pushed out and inserted into the rotating mechanism for centering and positioning; at the moment, the first two-position four-way electromagnetic valve acts to enable the right valve position to be in place, so that the sliding clamping jaws of the rotating mechanism tightly hold the piston rod of the hydraulic actuating mechanism to be retracted; when the right valve position is in place when the two-position three-way electromagnetic valve acts, the speed regulating valve is adjusted to enable the T-shaped piston rod of the rotating mechanism to rotate, the upper chimney is driven by the hydraulic motor to rotate along the axes of the hydraulic actuating mechanism, the rotating mechanism and the hydraulic motor, and when the rotating end hydraulic actuating mechanism rotates to the position right above the middle hydraulic actuating mechanism, the rotating end hydraulic actuating mechanism pushes out the piston rod to be inserted into the centering hydraulic actuating mechanism from the bell mouth of the centering hydraulic actuating mechanism, so that centering operation is completed;
after a centering instruction is sent, the right side of the two-position three-way electromagnetic valve is electrified, a right side valve position works, one side of the first two-position four-way electromagnetic valve and one side of the hydraulic execution mechanism stops supplying hydraulic oil, the side pressure is in pressure maintaining, oil ways of the two-position three-way electromagnetic valve, the regulating speed regulating valve and the second two-position four-way electromagnetic valve are conducted, the left side of the second two-position four-way electromagnetic valve is electrified, the left side valve position works, the hydraulic motor rotates anticlockwise, the flow rate of the hydraulic oil is regulated through the regulating speed regulating valve, and; if the right side electromagnetic of the second two-position four-way electromagnetic valve is electrified, the right side valve works, the hydraulic motor rotates clockwise, and the rotation of the hydraulic motor drives the upper chimney to rotate, so that the aim of rotating and centering is fulfilled;
the hydraulic pump of the hydraulic locking control system is driven by a motor to pressurize hydraulic oil in a hydraulic oil tank, the pressure is stabilized through an energy accumulator and a pressure regulating valve, when the left valve position of the two-position three-way electromagnetic valve is in place, the left valve position of the first two-position four-way electromagnetic valve is in place, a hydraulic actuating mechanism at the rotating end is pushed outwards, and centering operation at the other side of the chimney is performed; at the moment, the right valve position is in place when the first two-position four-way electromagnetic valve acts, the hydraulic actuating mechanism at the rotating end is withdrawn, the hydraulic actuating mechanism at the rotating end is not inserted into the centering hydraulic actuating mechanism, and the hydraulic actuating mechanism at the rotating end is withdrawn and then inserted again after operation failure; when a piston rod of the hydraulic actuating mechanism at the rotating end is inserted into the middle hydraulic actuating mechanism, the right valve position is controlled to be in place by the action of the two-position three-way electromagnetic valve, and the speed regulating valve and the two-position four-way electromagnetic valve group are adjusted to enable the locking hydraulic actuating mechanism to act; when the rotating mechanism stops working, the hydraulic motor starts to rotate to drive the upper chimney to rotate, and the piston rod of the locking hydraulic actuating mechanism pushes the sliding clamping jaw to press the piston rod of the hydraulic actuating mechanism tightly, so that the locking purpose is achieved.
The installation tool for large-scale structures on offshore platforms comprises: the large-scale structure is a structure with a regular shape.
The installation tool for the large-scale structure of the offshore platform has the advantages that the installation risk can be reduced and the construction period of offshore installation can be saved by accurately centering and installing the large-scale structure in the wind, wave and current environment of the marine environment.
Drawings
Fig. 1 is a primary centering bitmap of a large structure of the present invention.
FIG. 2 is a diagram of an embodiment of the present invention for precisely positioning a large structure by rotation.
Fig. 3A is a cross-sectional view of the rotary mechanism structure of the present invention.
FIG. 3B is another cross-sectional view of the rotary mechanism structure of the present invention.
Fig. 4 is a working schematic diagram of the hydraulic rotary control system of the present invention.
Fig. 5 is a working schematic diagram of the hydraulic locking control system of the invention.
The main reference numbers in the figures illustrate: the hydraulic control system comprises a hydraulic oil tank 1, an overflow valve 2, a hydraulic pump 3, an energy accumulator 4, a pressure gauge 5, a pressure regulating valve 6, a two-position three-way electromagnetic valve 7, a speed regulating valve 8, a first two-position four-way electromagnetic valve 9, a hydraulic actuator 10, a rotating mechanism 11, a shell 111 and a shell 112, wherein the two-position three-way electromagnetic valve is a T-shaped piston rod, a hydraulic motor 12, a rotating end hydraulic actuator 13, a centering hydraulic actuator 14, a locking hydraulic actuator 15, a sliding jaw 16, a large structure 18, a second two-position four-way electromagnetic valve 19 and a two.
Detailed Description
As shown in fig. 1 to 5, in the installation tool for large structures of offshore platforms according to the present invention, the hydraulic actuator 13 and the hydraulic actuator 10 at the rotating end are respectively disposed on the outer walls of the two sides corresponding to the upper large structure 18, and the rotating mechanism 11 and the hydraulic motor 12 are respectively disposed on the outer wall of the lower large structure 18 on the same side as the hydraulic actuator 10; the centering hydraulic actuator 14 is arranged on the outer wall of the lower large-scale structure on the same side with the rotating end hydraulic actuator 13, as shown in fig. 1 and 2;
a piston rod of the hydraulic actuating mechanism 10 penetrates into the rotating mechanism 11 to be abutted against a T-shaped piston rod of the rotating mechanism 11 and is fixedly locked through a sliding clamping jaw 16 of the rotating mechanism 11, and the T-shaped piston rod of the rotating mechanism 11 is connected with a driving shaft of a hydraulic motor 12; a piston rod of the rotating end hydraulic actuator 13 penetrates through a bell mouth of a shell of the centering hydraulic actuator 14 and abuts against an inner bottom of the shell of the centering hydraulic actuator 14, as shown in fig. 3A and 3B;
the hydraulic control system comprises a hydraulic rotation control system and a hydraulic locking control system;
the hydraulic rotary control system consists of a hydraulic oil tank 1, an overflow valve 2, a hydraulic pump 3, an energy accumulator 4, a pressure gauge 5, a pressure regulating valve 6, a two-position three-way electromagnetic valve 7, a first two-position four-way electromagnetic valve 9, a hydraulic actuating mechanism 10, a hydraulic motor 12, a speed regulating valve 8 and a second two-position four-way electromagnetic valve 19; an outlet of the hydraulic oil tank 1 is connected with a suction inlet of a hydraulic pump 3 through a hydraulic pipeline, and an outlet of the hydraulic pump 3 is connected in series with an energy accumulator 4, a pressure gauge 5, a pressure regulating valve 6, a two-position three-way electromagnetic valve 7, a first two-position four-way electromagnetic valve 9 and a oil delivery port of a hydraulic actuating mechanism 10 through the hydraulic pipeline; the hydraulic pipeline is connected with an overflow valve 2 in parallel, and the overflow is returned to a hydraulic oil tank 1; the two-position three-way solenoid valve 7 is connected in series with the speed regulating valve 8, the second two-position four-way solenoid valve 19 and the hydraulic motor 12 through a hydraulic pipeline, as shown in fig. 4.
The hydraulic locking control system is composed of a hydraulic oil tank 1, an overflow valve 2, a hydraulic pump 3, an energy accumulator 4, a pressure gauge 5, a pressure regulating valve 6, a two-position three-way electromagnetic valve 7, a first two-position four-way electromagnetic valve 9, a rotating end hydraulic actuating mechanism 13, a locking hydraulic actuating mechanism 15, a speed regulating valve 8 and a two-position four-way electromagnetic valve group 20; an outlet of the hydraulic oil tank 1 is connected with a suction inlet of a hydraulic pump 3 through a hydraulic pipeline, and after hydraulic oil is pressurized by the hydraulic pump 3, the outlet of the hydraulic pump 3 is connected in series with an oil delivery port of an energy accumulator 4, a pressure gauge 5, a pressure regulating valve 6, a two-position three-way electromagnetic valve 7, a first two-position four-way electromagnetic valve 9 and a rotating end hydraulic actuating mechanism 13 through the hydraulic pipeline; the hydraulic pipeline is connected with an overflow valve 2 in parallel and is used for overflowing to return to a hydraulic oil tank 1; the two-position three-way electromagnetic valve 7 is also connected in parallel with the two-position four-way electromagnetic valve group 20 and the locking hydraulic actuator 15 through a hydraulic pipeline and a speed regulating valve 8, as shown in fig. 5.
As shown in fig. 4 and 5, the installation tool for large structures of offshore platforms of the present invention includes: the hydraulic actuator 10 is a commercially available actuator for converting hydraulic energy into mechanical energy, and a shell of the hydraulic actuator is welded and fixed with the outer wall of the upper large structure 18 through a bracket and is connected with a valve port of a first two-position four-way electromagnetic valve 9 in a hydraulic control system through a hydraulic pipeline; as shown in fig. 3A and 3B, the rotating mechanism 11 includes a housing 111, a hydraulic cylinder, a locking hydraulic actuator 15, and a sliding jaw 16; the housing 111 is a hollow cylinder with both ends open; one end of a piston rod of the hydraulic cylinder is welded with a steel plate to form a T-shaped piston rod 112, one end of the T-shaped piston rod 112, which is provided with the steel plate, is positioned in the shell, the other end of the T-shaped piston rod is arranged outside the shell in a penetrating manner, the steel plate arranged at the end part of the T-shaped piston rod 112 is a circular steel plate with the diameter corresponding to the inner diameter of the shell, radial slideways are arranged on the plate surface of the steel plate deviating from a T-shaped piston rod body at intervals of 90 degrees, and one ends; the locking hydraulic actuating mechanism 15 is four hydraulic cylinders, bases of the four hydraulic cylinders are respectively welded at the end parts of the four slideways departing from the center of the steel plate, and piston rods of the four hydraulic cylinders are respectively welded and fixed with the tops of the four sliding clamping jaws 16; the bottom of the sliding clamping jaw 16 corresponds to the shape of a groove of the slideway, so that the sliding clamping jaw can move on the slideway to hold a piston rod of the hydraulic actuating mechanism 10 tightly; the outer wall of the rotating mechanism 11 and the outer wall of the parallel side of the T-shaped piston rod are fixed with the outer wall of the large structure through a bracket, and one end of the T-shaped piston rod 112 penetrating through the shell 111 is positioned below the shell 111 and is welded with a driving shaft of the hydraulic motor 12 into a whole; as shown in fig. 2, the hydraulic motor 12 is a commercially available actuator in a hydraulic control system, and a housing thereof is welded and fixed to an outer wall of the lower large structure 18 below the rotating mechanism 11 through a bracket; the hydraulic pump converts hydraulic pressure energy provided by the hydraulic pump into torque and rotating speed mechanical energy output by an output shaft of the hydraulic pump; liquid is used as a medium for transmitting force and moving, the pressure of the liquid is changed, and the rotor generates torque through unbalanced stress; a driving shaft of the hydraulic motor 12 is welded with the T-shaped piston rod into a whole; the oil feeding port and the oil return port of the hydraulic motor 12 are connected with a second two-position four-way electromagnetic valve 19 in the hydraulic system through hydraulic pipelines; the rotating end hydraulic actuator 13 is a commercially available actuator for converting hydraulic energy into mechanical energy, and the housing thereof is fixed to the outer wall of the upper large structure 18 on the side opposite to the hydraulic actuator 10 by welding via a bracket; the rotating end hydraulic actuator 13 is connected with the centering hydraulic actuator 14 through a piston rod of the rotating end hydraulic actuator 13; an oil feeding port of the rotating end hydraulic actuating mechanism 13 is sequentially connected in series with a first two-position four-way electromagnetic valve 9, a two-position three-way electromagnetic valve 7, a pressure regulating valve 6, an energy accumulator 4, a hydraulic pump 3 and a hydraulic oil tank 1, and an oil return port of the rotating end hydraulic actuating mechanism is connected with a valve port of the first two-position four-way electromagnetic valve 9 through a hydraulic pipeline; the centering hydraulic actuator 14 is a hollow cylindrical shell with a horn-shaped opening at the upper end, the bottom end of the shell is a closed end, and the shell is welded on the outer wall of the lower large-scale structure at the same side as the rotating end hydraulic actuator 13 through a support; the piston rod of the rotary end hydraulic actuator 13 is inserted into the center of the inner bottom of the centering hydraulic actuator 14.
As shown in fig. 4, the installation tool for large-scale structures of offshore platforms of the present invention comprises: the hydraulic pump 3 of the hydraulic rotary control system is driven by a motor to pressurize hydraulic oil in a hydraulic oil tank 1, and the pressure is stabilized through an energy accumulator 4 and a pressure regulating valve 6; when the valve position on the left side of the two-position three-way electromagnetic valve 7 is in place, the valve position on the left side of the first two-position four-way electromagnetic valve 9 is in place, the hydraulic actuating mechanism 10 is pushed outwards, and the piston rod is pushed out and inserted into the rotating mechanism 11 to be centered and positioned; at the moment, the first two-position four-way electromagnetic valve 9 acts to enable the right valve position to be in place, so that the sliding clamping jaws 16 of the rotating mechanism 11 tightly hold the piston rod of the hydraulic actuating mechanism 10 to be retracted; when the right valve position is in place when the two-position three-way electromagnetic valve 7 acts, the speed regulating valve 8 is regulated to enable the T-shaped piston rod 112 of the rotating mechanism 11 to rotate, the upper chimney is driven by the hydraulic motor 12 to rotate along the axial lines of the hydraulic actuating mechanism 10, the rotating mechanism 11 and the hydraulic motor 12, when the rotating end hydraulic actuating mechanism 13 rotates to the position right above the centering hydraulic actuating mechanism 14, the rotating end hydraulic actuating mechanism 13 pushes out the piston rod to be inserted into the centering hydraulic actuating mechanism 14 from the bell mouth of the centering hydraulic actuating mechanism 14, and centering operation is completed; after a centering instruction is sent, the right side of the two-position three-way electromagnetic valve 7 is electrified, the right side valve position works, one side of the first two-position four-way electromagnetic valve 9 and one side of the hydraulic execution mechanism 10 stop supplying hydraulic oil, the side pressure is maintained, oil ways of the two-position three-way electromagnetic valve 7, the regulating speed regulating valve 8 and the second two-position four-way electromagnetic valve 19 are conducted, the left side of the second two-position four-way electromagnetic valve 19 is electrified, the left side valve position works, the hydraulic motor 12 rotates anticlockwise, the flow rate of the hydraulic oil is regulated through the regulating speed regulating valve 8, and therefore the rotating; if the right electromagnetic of the second two-position four-way electromagnetic valve 19 is electrified, the right valve works, the hydraulic motor 12 rotates clockwise, and the rotation of the hydraulic motor drives the upper chimney to rotate, so that the aim of rotating and centering is fulfilled.
As shown in fig. 5, the installation tool for large-scale structures of offshore platforms of the present invention comprises: a hydraulic pump 3 of the hydraulic locking control system is driven by a motor to pressurize hydraulic oil in a hydraulic oil tank 1, pressure is stabilized through an energy accumulator 4 and a pressure regulating valve 6, when a valve position on the left side of a two-position three-way electromagnetic valve 7 is in place, a valve position on the left side of a first two-position four-way electromagnetic valve 9 is in place, a hydraulic actuating mechanism 13 at a rotating end is pushed outwards, and centering operation on the other side of the chimney is carried out; at the moment, the right valve position is in place when the first two-position four-way electromagnetic valve 9 acts, the rotating end hydraulic actuating mechanism 13 is retracted, the rotating end hydraulic actuating mechanism 13 is not inserted into the centering hydraulic actuating mechanism 14, and the rotating end hydraulic actuating mechanism 13 is retracted and then inserted again after misoperation; when a piston rod of the hydraulic actuating mechanism 13 at the rotating end is inserted into the centering hydraulic actuating mechanism 14, the two-position three-way electromagnetic valve 7 is controlled to act, and the right valve position is in place, and the speed regulating valve 8 and the two-position four-way electromagnetic valve group 20 are adjusted to act the locking hydraulic actuating mechanism 15; the rotating mechanism 11 stops working, the hydraulic motor 12 starts rotating to drive the upper chimney to rotate, and the piston rod of the locking hydraulic actuating mechanism pushes the sliding clamping jaw 16 to press the piston rod of the hydraulic actuating mechanism 10 tightly, so that the locking purpose is achieved.
The large-scale structure mounting tool for the offshore platform is applicable to large-scale structures such as chimneys or structures with regular shapes.
Example (b):
when the invention is used for installing a large-scale structure chimney 18, hydraulic oil is transmitted into a oil feeding cavity of a hydraulic actuating mechanism 10 from a hydraulic oil tank 1 through an energy accumulator 4, a pressure regulating valve 6, a two-position three-way electromagnetic valve 7 (left-side electromagnetic energization and left-side valve position circulation) and a first two-position four-way electromagnetic valve 9 (left-side electromagnetic energization and left-side valve position circulation) through a hydraulic pump 3, and the hydraulic oil pushes a piston rod of the hydraulic actuating mechanism 10 to move, as shown in fig. 4; at this time, under the pushing of the hydraulic oil, the piston rod of the hydraulic actuator 10 on one side of the upper large structure passes through the bell mouth of the rotating mechanism 11 and props against the steel plate at the end part of the T-shaped piston rod 112 of the rotating mechanism, as shown in fig. 1; as shown in fig. 3A and 3B, the locking hydraulic actuator 15 is activated; the locking hydraulic actuator 15 acts as shown in fig. 5, the hydraulic pump 3 is driven by a motor to convey hydraulic oil in the hydraulic oil tank 1 to an oil feeding cavity of the locking hydraulic actuator 15 through an energy accumulator 4, a pressure gauge 5, a pressure regulating valve 6, a two-position three-way electromagnetic valve 7 (right-side electromagnetic power on and right-side oil circuit working), a speed regulating valve 8 and a two-position four-way electromagnetic valve group 20 (right-side power on and right-side oil circuit working), so as to push piston rods of the four locking hydraulic actuators 15 to slide, and further drive a sliding claw 16 to lock the piston rod of the hydraulic actuator 10;
after the piston of the hydraulic actuator 10 on the side of the chimney 18 is locked, the hydraulic motor 12 on the lower chimney drives the upper chimney to rotate along the center of the rotating mechanism 11, as shown in fig. 1; the driving action of the hydraulic motor 12 is as shown in fig. 4, the two-position three-way electromagnetic valve 7 (right-side electromagnetic is electrified, right-side valve position is circulated), and the speed regulating valve 8 sets the flow rate of the hydraulic oil, so that the hydraulic oil with the set flow rate passes through the second two-position four-way electromagnetic valve group 19 (left-side electromagnetic is electrified, left-side valve position is circulated), and further drives the hydraulic motor 12 to rotate; when a piston rod of the rotating end hydraulic actuator 13 on the other side of the chimney 18 is aligned with a bell mouth of the centering hydraulic actuator 14 on the outer wall of the lower chimney 18, the rotating end hydraulic actuator 13 and the centering hydraulic actuator 14 of the lower chimney 18 are pushed to complete centering operation, as shown in fig. 5, the left side of the two-position three-way electromagnetic valve 7 is electromagnetically electrified, the left side oil way is conducted, the left side oil way enters an oil feeding cavity of the rotating end hydraulic actuator 13 through the first two-position four-way electromagnetic valve 9 (the left side is electromagnetically electrified, and the left side oil way works), and the piston rod is pushed to slide to prop against the central bottom of the centering hydraulic; then, the large structure is bolted and fixed as shown in fig. 2. The chimney installation overall process needs the loop wheel machine to carry out supplementary installation work, makes the chimney install from one side to another side order in proper order, can avoid the collision to produce.
The content that is not described in this embodiment is the prior art, and therefore, the description thereof is omitted.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and all simple modifications, equivalent variations and modifications made to the above embodiment according to the technical spirit of the present invention still fall within the scope of the technical solution of the present invention.
Claims (4)
1. The utility model provides an offshore platform large-scale structure thing mounting tool which characterized in that:
a rotating end hydraulic actuating mechanism (13) and a hydraulic actuating mechanism (10) are respectively arranged on the outer walls of two corresponding sides of the upper large-scale structure (18), and a rotating mechanism (11) and a hydraulic motor (12) are respectively arranged on the outer wall of the lower large-scale structure (18) on the same side with the hydraulic actuating mechanism (10); the centering hydraulic actuating mechanism (14) is arranged on the outer wall of the large-sized structure at the lower part on the same side as the rotating end hydraulic actuating mechanism (13);
a piston rod of the hydraulic actuating mechanism (10) penetrates into the rotating mechanism (11) to be abutted against a T-shaped piston rod of the rotating mechanism (11) and is fixedly locked through a sliding clamping jaw (16) of the rotating mechanism (11), and the T-shaped piston rod of the rotating mechanism (11) is connected with a driving shaft of a hydraulic motor (12); a piston rod of the rotating end hydraulic actuating mechanism (13) penetrates through a shell bell mouth of the centering hydraulic actuating mechanism (14) and abuts against the inner bottom of a shell of the centering hydraulic actuating mechanism (14);
the hydraulic control system comprises a hydraulic rotation control system and a hydraulic locking control system;
the hydraulic rotary control system is composed of a hydraulic oil tank (1), an overflow valve (2), a hydraulic pump (3), an energy accumulator (4), a pressure gauge (5), a pressure regulating valve (6), a two-position three-way electromagnetic valve (7), a first two-position four-way electromagnetic valve (9), a hydraulic actuating mechanism (10), a hydraulic motor (12), a speed regulating valve (8) and a second two-position four-way electromagnetic valve (19); an outlet of the hydraulic oil tank (1) is connected with a suction inlet of a hydraulic pump (3) through a hydraulic pipeline, and an outlet of the hydraulic pump (3) is connected in series with an oil feeding port of an energy accumulator (4), a pressure gauge (5), a pressure regulating valve (6), a two-position three-way electromagnetic valve (7), a first two-position four-way electromagnetic valve (9) and a hydraulic actuating mechanism (10) through the hydraulic pipeline; the hydraulic pipeline is connected with an overflow valve (2) in parallel, and the overflow valve is used for returning to the hydraulic oil tank (1); the two-position three-way electromagnetic valve (7) is connected with the speed regulating valve (8), the second two-position four-way electromagnetic valve (19) and the hydraulic motor (12) in series through a hydraulic pipeline;
the hydraulic locking control system is composed of a hydraulic oil tank (1), an overflow valve (2), a hydraulic pump (3), an energy accumulator (4), a pressure gauge (5), a pressure regulating valve (6), a two-position three-way electromagnetic valve (7), a first two-position four-way electromagnetic valve (9), a rotating end hydraulic actuating mechanism (13), a locking hydraulic actuating mechanism (15), a speed regulating valve (8) and a two-position four-way electromagnetic valve group (20); an outlet of the hydraulic oil tank (1) is connected with a suction inlet of a hydraulic pump (3) through a hydraulic pipeline, and after hydraulic oil is pressurized by the hydraulic pump (3), the outlet of the hydraulic pump (3) is connected in series with an energy accumulator (4), a pressure gauge (5), a pressure regulating valve (6), a two-position three-way electromagnetic valve (7), a first two-position four-way electromagnetic valve (9) and a oil feeding port of a rotating end hydraulic actuating mechanism (13) through the hydraulic pipeline; the hydraulic pipeline is connected with an overflow valve (2) in parallel and is used for overflowing to return to the hydraulic oil tank (1); the two-position three-way electromagnetic valve (7) is also connected in parallel with the two-position four-way electromagnetic valve group (20) and the locking hydraulic actuating mechanism (15) through a hydraulic pipeline and a speed regulating valve (8).
2. The offshore platform large structure installation tool of claim 1, wherein:
the hydraulic actuator (10) is a commercially available hydraulic actuator for converting hydraulic energy into mechanical energy, and a shell of the hydraulic actuator is welded and fixed with the outer wall of the upper large structure (18) through a bracket and is connected with a valve port of a first two-position four-way electromagnetic valve (9) in a hydraulic control system through a hydraulic pipeline;
the rotating mechanism (11) comprises a shell (111), a hydraulic cylinder, a locking hydraulic actuating mechanism (15) and a sliding claw (16); the shell (111) is a hollow cylinder with two open ends; one end of a piston rod of the hydraulic cylinder is welded with a steel plate to form a T-shaped piston rod (112), one end, provided with the steel plate, of the T-shaped piston rod (112) is located in the shell, the other end of the T-shaped piston rod penetrates through the outer portion of the shell, the steel plate arranged at the end portion of the T-shaped piston rod (112) is a circular steel plate, the diameter of the circular steel plate corresponds to the inner diameter of the shell, radial slideways are arranged on the plate surface, away from a rod body of the T-shaped piston rod, of the steel plate at intervals; the locking hydraulic actuating mechanism (15) is four hydraulic cylinders, bases of the four hydraulic cylinders are respectively welded at the end parts of the four slideways departing from the center of the steel plate, and piston rods of the four hydraulic cylinders are respectively welded and fixed with the tops of the four sliding clamping jaws (16); the bottom of the sliding clamping jaw (16) corresponds to the shape of a groove of the slideway, and the sliding clamping jaw can move on the slideway so as to hold a piston rod of the hydraulic actuating mechanism (10) tightly; the rotating mechanism (11) and the outer wall of one side, parallel to the T-shaped piston rod, of the outer wall are fixed with the outer wall of the large-scale structure through a support, and one end, penetrating out of the shell (111), of the T-shaped piston rod (112) is located below the shell (111) and is welded with a driving shaft of the hydraulic motor (12) into a whole;
the hydraulic motor (12) is a commercially available execution element in a hydraulic control system, and a shell of the hydraulic motor is welded and fixed with the outer wall of a lower large structure (18) below the rotating mechanism (11) through a bracket; a driving shaft of the hydraulic motor (12) is welded with the T-shaped piston rod (112) into a whole; an oil feeding port and an oil return port of the hydraulic motor (12) are connected with a second two-position four-way electromagnetic valve (19) in the hydraulic system through hydraulic pipelines; the rotating end hydraulic actuator (13) is a commercially available actuator for converting hydraulic energy into mechanical energy, and the shell of the rotating end hydraulic actuator is fixed on the outer wall of the upper large structure (18) on the opposite side of the hydraulic actuator (10) through welding by a bracket; the rotating end hydraulic actuating mechanism (13) is connected with the centering hydraulic actuating mechanism (14) through a piston rod of the rotating end hydraulic actuating mechanism (13); an oil feeding port of the rotating end hydraulic actuating mechanism (13) is sequentially connected in series with a first two-position four-way electromagnetic valve (9), a two-position three-way electromagnetic valve (7), a pressure regulating valve (6), an energy accumulator (4), a hydraulic pump (3) and a hydraulic oil tank (1), and an oil return port of the rotating end hydraulic actuating mechanism is connected with a valve port of the first two-position four-way electromagnetic valve (9) through a hydraulic pipeline;
the centering hydraulic actuating mechanism (14) is a hollow cylindrical shell with a horn-shaped opening at the upper end, the bottom end of the shell is a closed end, and the shell is welded on the outer wall of a lower large structure at the same side as the rotating end hydraulic actuating mechanism (13) through a support; the piston rod of the rotating end hydraulic actuator (13) is inserted into the center of the inner bottom of the centering hydraulic actuator (14).
3. The offshore platform large structure installation tool of claim 1, wherein:
the hydraulic pump (3) of the hydraulic rotary control system is driven by a motor to pressurize hydraulic oil in a hydraulic oil tank (1), and the pressure is stabilized through an energy accumulator (4) and a pressure regulating valve (6); when the valve position on the left side of the two-position three-way electromagnetic valve (7) is in place, the valve position on the left side of the first two-position four-way electromagnetic valve (9) is in place, the hydraulic actuating mechanism (10) is pushed outwards, and a piston rod of the hydraulic actuating mechanism is pushed out and inserted into the rotating mechanism (11) for centering and positioning; at the moment, the first two-position four-way electromagnetic valve (9) acts to enable the right valve position to be in place, so that the sliding clamping jaws (16) of the rotating mechanism (11) tightly hold the piston rod of the hydraulic actuating mechanism (10) to be retracted; when the right valve position is in place when the two-position three-way electromagnetic valve (7) acts, the speed regulating valve (8) is adjusted to enable the T-shaped piston rod (112) of the rotating mechanism (11) to rotate, the upper chimney is driven by the hydraulic motor (12) to rotate along the axes of the hydraulic actuating mechanism (10), the rotating mechanism (11) and the hydraulic motor (12), and when the rotating end hydraulic actuating mechanism (13) rotates to the position right above the centering hydraulic actuating mechanism (14), the rotating end hydraulic actuating mechanism (13) pushes out the piston rod to be inserted into the centering hydraulic actuating mechanism (14) from the bell mouth of the centering hydraulic actuating mechanism (14), so that centering operation is completed;
after a centering instruction is sent, the right side electromagnetic of the two-position three-way electromagnetic valve (7) is electrified, the right side valve position works, the hydraulic oil supply is stopped at one side of the first two-position four-way electromagnetic valve (9) and one side of the hydraulic actuating mechanism (10), the pressure is maintained at the side pressure, the oil ways of the two-position three-way electromagnetic valve (7), the adjusting speed regulating valve (8) and the second two-position four-way electromagnetic valve (19) are conducted, the left side electromagnetic of the second two-position four-way electromagnetic valve (19) is electrified, the left side valve position works, the hydraulic motor (12) rotates anticlockwise, the flow speed of the hydraulic oil is regulated through the adjusting speed regulating valve (8; if the right side electromagnetic of the second two-position four-way electromagnetic valve (19) is electrified, the right side valve works, the hydraulic motor (12) rotates clockwise, and the rotation of the hydraulic motor drives the upper chimney to rotate, so that the aim of rotating and centering is fulfilled;
the hydraulic pump (3) of the hydraulic locking control system is driven by a motor to pressurize hydraulic oil in a hydraulic oil tank (1), pressure is stabilized through an energy accumulator (4) and a pressure regulating valve (6), when the left valve position of a two-position three-way electromagnetic valve (7) is in place, the left valve position of a first two-position four-way electromagnetic valve (9) is in place, a rotating end hydraulic actuating mechanism (13) is pushed outwards, and centering operation on the other side of the chimney is performed; at the moment, the first two-position four-way electromagnetic valve (9) acts to enable the right valve position to be in place, the rotating end hydraulic actuating mechanism (13) is withdrawn, the rotating end hydraulic actuating mechanism (13) is not inserted into the centering hydraulic actuating mechanism (14), and the rotating end hydraulic actuating mechanism (13) is withdrawn and then inserted again after misoperation; when a piston rod of the rotating end hydraulic actuating mechanism (13) is inserted into the centering hydraulic actuating mechanism (14), the right valve position of the two-position three-way electromagnetic valve (7) is controlled to act in place, and the speed regulating valve (8) and the two-position four-way electromagnetic valve group (20) are adjusted to enable the locking hydraulic actuating mechanism (15) to act; the rotating mechanism (11) stops working, the hydraulic motor (12) starts rotating to drive the upper chimney to rotate, and the piston rod of the locking hydraulic actuating mechanism pushes the sliding clamping jaw (16) to press the piston rod of the hydraulic actuating mechanism (10) tightly, so that the locking purpose is achieved.
4. The offshore platform large structure installation tool of claim 1, wherein: the large-scale structure is a structure with a regular shape.
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| CN110370015A (en) | 2019-10-25 |
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