Mobile jack-up type plant module installation and maintenance system and method thereof

Abstract

Even without concrete pouring, the system maintains a consistent level by adjusting the height of each module's support section via a mobile jack-up system when settlement occurs. [Solution] A system including: a pile having an inner circumferential surface of a certain diameter, which is inserted into a screw hole formed by excavating the ground on which the plant module is installed; a fixing structure having a through hole that communicates with the inner circumferential surface of the pile and which is attached to the upper end of the pile; a leg having a clutch rail formed on its outer circumferential surface with alternating protrusions and grooves in the longitudinal direction, which is inserted into the fixing structure and the pile, and on which the plant module is placed with its exposed upper end; and a lifting unit having a clutch that is selectively insertable into the protrusions of the clutch rail so as to be bound to the rail, with the lower end supported by the fixing structure and the upper end positioned corresponding to the upper end of the leg, and the upper and lower ends connected so as to be driveable up and down by an actuator, and which has a clutch that is selectively insertable into the protrusions of the clutch rail so as to be bound to the rail.

Description

Technical Field

[0001] <Description related to the results of commissioned research by countries, etc.> The present invention was made under the support of research conducted by the Korea Agency for Infrastructure Technology Advancement (KAIA) with the support of the Ministry of Land, Infrastructure and Transport of the Republic of Korea. [Research project name: "Development of Core Technologies for the Construction of Non-Conventional Oil Production Plants"; Research topic name: "Development of Modular Design and Integrated Verification Technologies for Oil Production Plants"; Topic unique number: 1615012996; Topic number: 00143644] The present invention relates to a plant module installation and maintenance and repair system and method of a mobile jack-up type, and more particularly, to a technology applied when constructing a plant module in a non-conventional oil production area where irregular settlement is highly likely to occur due to extreme temperature differences and precipitation. The present invention can maintain the same level by adjusting the height of each module support part through a mobile jack-up when settlement occurs even without concrete pouring work.

Background Art

[0002] In recent years, due to rising oil prices and the Ukraine war, the need for oil has resurfaced, and non-conventional oils such as oil sand plants in extremely cold environmental conditions have attracted attention again.

[0003] Most of the oil sand regions centered on Canada are extremely cold regions, and plants for oil production must be quickly constructed by on-site installation and assembly after being transported in the form of modules. In particular, in the case of the Canadian region, construction work is mostly carried out in summer, but it is known that construction is possible for only about two months at least.

[0004] To safely install plant modules in such harsh environments, rapid construction of the foundation structures supporting the modules and core technologies for maintaining the horizontal balance of the modules are required. In particular, due to the characteristics of construction in extremely cold regions, which is limited to summer, site access is limited and the delivery of materials is not freely permitted, unlike general construction methods. Therefore, technologies that can provide modularization and the speed and accuracy of installation and construction are extremely important.

[0005] Furthermore, in most areas with oil sands, summers are short, and the extreme temperature difference between winter and summer causes geological changes ranging from tens of centimeters to several meters, leading to settlement of modular foundations. In particular, because vibrations generated by plant operation inevitably accelerate settlement, it is necessary to simultaneously develop optimal foundation design and installation technologies that take into account the characteristics of frozen ground. [Overview of the Initiative] [Problems that the invention aims to solve]

[0006] The present invention was created to meet the above-mentioned needs, and its objective is to provide a mobile jack-up type plant module installation and maintenance repair system and method, which can be applied when constructing plant modules in non-traditional oil production areas where there is a high risk of irregular settlement due to extreme temperature differences and rainfall, and which can maintain the same level by adjusting the height of each module support part via mobile jack-up when settlement occurs, without concrete pouring work. [Means for solving the problem]

[0007] To achieve the above objectives, the present invention relates to a mobile jack-up type plant module installation and maintenance system, comprising: a pile having an inner circumferential surface of a certain diameter, which is inserted into a screw hole formed by excavating the ground in the area where the plant module is to be installed; a fixing structure having a through hole that communicates with the inner circumferential surface of the pile and which is attached to the upper end of the pile; a leg having a clutch rail formed on its outer circumferential surface with alternating protrusions and grooves in the longitudinal direction, which is inserted into the fixing structure and the pile, and on which the plant module is placed when the exposed upper end is placed; and a lifting unit having its lower end supported by the fixing structure, its upper end positioned to correspond to the upper end of the leg, the upper and lower ends connected so as to be driveable up and down by an actuator, and a clutch that can be selectively inserted into the protrusions of the clutch rail so as to be bound to the rail.

[0008] The lifting unit comprises a lower support unit supported by the fixed structure and having a lower yoke through which the legs pass through the center, a lower clutch insertable into the groove, and a lower clutch cylinder that moves the lower clutch while inserting into or disengaging from the groove, to which a lower clutch block in a configuration surrounding the clutch rail is coupled; an upper support unit located spaced above the lower support unit and having an upper yoke through which the legs pass through the center, an upper clutch insertable into the groove, and an upper clutch cylinder that moves the upper clutch while inserting into or disengaging from the groove, to which an upper clutch block in a configuration surrounding the clutch rail is coupled; and a plurality of actuators, each connected to the lower support unit and the upper support unit, whose length is adjusted via hydraulic pressure.

[0009] Furthermore, the fixing structure comprises a fixing support attached to the upper end of the pile such that the leg passes through its center, and a fixing yoke coupled with a fixing clutch block that includes a fixing clutch that can be inserted into the groove and a fixing clutch cylinder that moves the fixing clutch while inserting into or disengaging from the groove.

[0010] The clutch rail is formed in three rows at 120-degree intervals from the center of the leg's cross-section, and the lower support, upper support, and fixed support each have three pairs of clutch blocks, with the actuators being installed one pair on each side of the clutch blocks.

[0011] It may further include a hydraulic power pack and a valve control station, and a control module for individually controlling the clutch and actuator.

[0012] On the other hand, in order to achieve the above-mentioned objectives, the present invention relates to a mobile jack-up type plant module installation and maintenance repair method, comprising: an excavation step of excavating the ground in the area where the plant module is to be installed to form a screw hole; an insertion step of pulling in a pile having an inner circumferential surface of a certain diameter into the excavated screw hole; a step of attaching a fixing structure to the upper end of the pile, which has a through hole formed in communication with the inner circumferential surface of the pile; a step of inserting a leg, which has a clutch rail formed on its outer circumferential surface with alternating protrusions and grooves in the longitudinal direction, into the fixing structure and the pile such that a part of its upper end is exposed; a step of supporting the lower end of a lifting unit, whose upper and lower ends are connected by an actuator, with the upper end of the lifting unit supported by the fixing structure and positioning the upper end to a position corresponding to the upper end of the leg; a step of placing the plant module on the upper end of the leg; and a step of determining the position of the plant module while the upper end of the lifting unit is moved up and down together with the leg by the drive of the actuator with the upper end of the lifting unit inserted into the protrusions of the clutch rail.

[0013] Furthermore, in the position determination stage, when raising the plant module, the system includes the steps of: disengaging the fixed clutch driven by the fixed clutch cylinder in the fixed structure from the uneven portion at that position, and disengaging the lower clutch driven by the lower clutch cylinder at the lower end of the actuator from the uneven portion at that position; driving the actuator to raise the upper end together with the leg, with the lower end of the lifting unit as the reference; and when the plant module reaches the set height, inserting the fixed clutch driven by the fixed clutch cylinder in the fixed structure into the uneven portion at that position, and inserting the lower clutch driven by the lower clutch cylinder at the lower end of the actuator into the uneven portion at that position.

[0014] Furthermore, the position determination step includes the steps of: when lowering the plant module, disengaging the fixed clutch driven by the fixed clutch cylinder in the fixed structure from the uneven portion at that position, and disengaging the lower clutch driven by the lower clutch cylinder at the lower end of the actuator from the uneven portion at that position; driving the actuator and lowering the upper end together with the leg with respect to the lower end of the lifting unit; and when the plant module reaches the set height, inserting the fixed clutch driven by the fixed clutch cylinder in the fixed structure into the uneven portion at that position, and inserting the lower clutch driven by the lower clutch cylinder at the lower end of the actuator into the uneven portion at that position.

[0015] In addition, once the position of the plant module is determined, the lifting unit may further be disassembled with the lower clutch, driven by the lower clutch cylinder at the lower end of the actuator, disengaged from the uneven surface at that position, and the upper clutch, driven by the upper clutch cylinder at the upper end of the actuator, disengaged from the uneven surface at that position.

[0016] At this time, during the dismantling stage of the lifting unit, the actuator can be driven to retract in the longitudinal direction, and the lifting unit can be dismantled with the upper end of the lifting unit lowered. [Effects of the Invention]

[0017] According to the present invention, when constructing plant modules in non-traditional oil production areas where there is a high risk of irregular settlement due to extreme temperature differences and rainfall, the level can be maintained uniformly by adjusting the height of each module support section via mobile jack-ups when settlement occurs, without the need for concrete pouring. Therefore, not only is concrete pouring unnecessary, but plant modules can be installed only in areas subject to force, dramatically reducing construction time and costs. Furthermore, the mobile jack-ups can be attached to and detached and applied to other plant modules, reducing installation and maintenance costs. The dismantling and restoration process of plant modules is simple, resulting in overall time and costs savings for maintenance, repair, dismantling, restoration, and reinstallation, making it a relatively more environmentally friendly construction method. [Brief explanation of the drawing]

[0018] [Figure 1] This is a perspective view of a plant module according to one embodiment of the present invention. [Figure 2] This is a perspective view of a leg according to one embodiment of the present invention. [Figure 3] This is a cross-sectional view showing the arrangement of the pile, fixing structure, and legs according to one embodiment of the present invention. [Figure 4] This is a side view showing the configuration of a fixed structure and a lifting unit according to one embodiment of the present invention. [Figure 5] This is a perspective view showing the configuration of a lifting unit according to one embodiment of the present invention. [Figure 6] This is a perspective view showing the configuration of the upper support of the lifting unit according to the present invention. [Figure 7] This is a perspective view showing the configuration of the lower support of the lifting unit according to the present invention. [Figure 8] It is a separation conceptual diagram of a lifting unit according to an embodiment of the present invention. [Figure 9] It is a flowchart showing a construction method according to an embodiment of the present invention. [Figure 10] It is a perspective view showing the ascending stage of a plant module according to an embodiment of the present invention. [Figure 11] It is a perspective view explaining the operation of a clutch according to an embodiment of the present invention.

Mode for Carrying Out the Invention

[0019] Hereinafter, with reference to the accompanying drawings, the configuration of the plant module installation and maintenance system of the mobile jack-up method of the present invention will be specifically described.

[0020] The plant module installation and maintenance system of the mobile jack-up method according to the present invention is shown in FIGS. 1 to 7. FIG. 1 is a perspective view of a plant module according to an embodiment of the present invention, FIG. 2 is a perspective view of a leg according to an embodiment of the present invention, FIG. 3 is a cross-sectional view showing the arrangement relationship of a pile, a fixed structure, and a leg according to an embodiment of the present invention, FIG. 4 is a side view showing the configuration of a fixed structure and a lifting unit according to an embodiment of the present invention, FIG. 5 is a perspective view showing the configuration of a lifting unit according to an embodiment of the present invention, FIG. 6 is a perspective view showing the configuration of an upper support of the lifting unit according to the present invention, and FIG. 7 is a perspective view showing the configuration of a lower support of the lifting unit according to the present invention.

[0021] As shown in the figure, the plant module installation system according to the present invention is mainly composed of a pile 10, a fixed structure 20, a leg 30, and a lifting unit 40.

[0022] The pile 10 is inserted into a threaded hole formed by excavating the ground in the area where the plant module P is to be installed, and preferably has an inner circumferential surface of a certain diameter. Here, a method well known to those with ordinary skill in the art may be used to form the threaded hole. The threaded hole is preferably formed with a diameter corresponding to the outer circumferential surface of the pile 10, and if it is formed with a diameter larger than the outer circumferential surface of the pile 10, a filler material may be filled between the pile 10 and the threaded hole. In this case, a variety of materials can be used as the filler material, but in order to minimize natural damage when the plant module P is dismantled according to the present invention, a natural material, such as fine aggregate, may be used.

[0023] The pile 10 is inserted into or placed in an underground rock layer and is manufactured to have a height, i.e., length, that is sufficient to firmly support the plant module P located above ground. The pile 10 may protrude above ground to a certain height, but it is preferable that it has a height corresponding to the ground level so that the fixed structure 20 attached to its upper end can be supported by the ground.

[0024] The fixing structure 20 includes a through hole formed in communication with the inner circumferential surface of the pile 10 and is attached to the upper end of the pile 10. As shown in Figure 4, such a fixing structure 20 includes a fixing support 21 attached to the upper end of the pile 10 so that the leg 30 passes through its center, and a fixing yoke 22 coupled to a fixing clutch block 25 which includes a fixing clutch that can be inserted into the groove 33 and a fixing clutch cylinder that moves the fixing clutch while inserting into or disengaging from the groove 33.

[0025] Such a fixed structure 20 is fixedly installed on the upper end of the pile 10 and differs only in that the actuator 70 is not installed on it. The remaining configuration is substantially the same as that of the upper support 60 and lower support 50 of the lifting unit 40 described below, so the description of the upper support 60 and lower support 50 can be used as a reference.

[0026] As shown in Figure 3, the leg 30 is basically a vertical column and slides vertically within the pile 10, with the plant module P placed on top. More specifically, the leg 30 is equipped with a clutch rail 31 on its outer surface, which has alternating protrusions 32 and grooves 33 formed along its length. The leg 30 is inserted into the fixed structure 20 and the pile 10, and the plant module P is placed on its exposed upper end.

[0027] Furthermore, although the attached drawings show a leg 30 with a circular cross-section as a preferred embodiment, the leg 30 can be configured to have various cross-sections such as square or pentagonal as needed.

[0028] The clutch rail 31 provided on the leg 30 is a means for fixing the height of the plant module P through a clutch described later, and the groove portion 33 is formed at uniform intervals and has a size that allows the clutch to be inserted. In an embodiment of the present invention, the clutch rail 31 is shown to be formed in three rows along the outer circumferential surface of the leg 30 at 120-degree intervals from the center of the cross-section of the leg 30, so that the load from the plant module P can be applied uniformly.

[0029] The number of clutch rails 31 provided on the leg 30 is related to the stability of the plant module P against load, and a larger number of rails can provide more stable support. However, in situations where there are spatial limitations for installing the corresponding clutches and clutch cylinders, the structure in which three pairs of clutch blocks are provided on the lower yoke 51 and upper yoke 61 corresponding to the three rows of clutch rails 31 provided on the leg 30, as in the embodiment of the present invention, can be said to be the optimal form for stability and installation space.

[0030] Furthermore, the legs 30 are typically provided on the frame including the corners of the plant module P, as the plant module P has a rectangular planar structure, and the plant module P is equipped with four or more legs 30, but there is no special limit on the number.

[0031] As shown in Figure 5, the lifting unit 40 is configured to adjust the height of the plant module P placed on the upper end of the leg 30 by raising and lowering the leg 30 via a clutch rail 31 provided on the leg 30. More specifically, the lifting unit 40 has its lower end supported by the fixed structure 20 and its upper end positioned at a location corresponding to the upper end of the leg 30. The upper and lower ends are connected so as to be driveable up and down by an actuator 70 and are equipped with a clutch that can be selectively inserted into the grooves 32 of the clutch rail 31 so as to be bound to the rail.

[0032] Such a lifting unit 40 can consist of various configurations, but in this invention, a configuration comprising a lower support 50, an upper support 60, and an actuator 70 is provided as an example.

[0033] As shown in Figure 6, the lower support 50 is supported by the fixed structure 20 and comprises a lower yoke 51 through which the leg 30 passes in the center, a lower clutch 52 that can be inserted into the groove 33, and a lower clutch cylinder 53 that inserts into or disengages from the groove 33 while moving the lower clutch 52, and a lower clutch block 54 that surrounds the clutch rail 31 is coupled to it.

[0034] As shown in Figure 7, the upper support 60 is located above the lower support 50 and comprises an upper yoke 61 through which the leg 30 passes in the center, an upper clutch 62 that can be inserted into the groove 33, and an upper clutch cylinder 63 that inserts into or disengages from the groove 33 while moving the upper clutch 62, and an upper clutch block 64 that surrounds the clutch rail 31 is connected to it.

[0035] Furthermore, the actuator 70 is connected at both ends to the lower support 50 and the upper support 60, respectively, and its length is adjusted via hydraulic pressure.

[0036] The lower clutch block 54 of the lower support 50 and the upper clutch block 64 of the upper support 60 have substantially identical configurations and guide the clutch rail 31 as the leg 30 moves up and down in a manner that surrounds the clutch rail 31, and operate to fix the movement of the leg 30 by engaging with the clutch rail 31 according to a control signal. In other words, as described above, by forming three rows of clutch rails 31 on the leg 30, the lower support 50 and the upper support 60 are each provided with three pairs of clutch blocks, and the clutch cylinders provided in each clutch block are controlled individually.

[0037] The actuator 70 is capable of displacement adjustment in the longitudinal direction and can have a variety of configurations, but in this embodiment it is a hydraulic cylinder whose length is adjusted by hydraulic pressure, with both ends connected to the lower support 50 and the upper support 60 respectively, and multiple actuators are installed to adjust the distance between the lower support 50 and the upper support 60 by the input hydraulic pressure.

[0038] In other words, the actuator 70 comprises a cylinder portion 71 and a piston rod 73, whose length is adjusted by applying and releasing hydraulic pressure, and an upper end coupling portion 72 and a lower end coupling portion 74 are formed at the upper and lower ends, respectively. Correspondingly, an upper support 67 and a lower support 57 are formed on the upper support 60 and the lower support 50, respectively, and are installed by coupling the upper support with the upper end coupling portion 72 and the lower support with the lower end coupling portion 74.

[0039] The lifting unit 40 can be disassembled from the leg 30 as needed and used to lift other plant modules P. For this purpose, the lifting unit 40 according to this embodiment may consist of an upper support 60 and a lower support 50 that can be installed and detached, respectively.

[0040] More specifically, if the clutch rails 31 are arranged in three rows, the upper support 60 and lower support 50 are divided into three sections based on this, and the lower yoke 51 and upper yoke 61 can be separated into three lower yoke sections 55 and three upper yoke sections 65 based on the clutch blocks provided on each, and lower yoke joints 56 and upper yoke joints 66 can be formed so that adjacent sections can be joined together using a bolt / nut method.

[0041] On the other hand, the control module (not shown) is for individually controlling the clutches 2, 62 and actuators 70 and includes four hydraulic power packs, each containing a hydraulic tank and a hydraulic pump, so that the four legs 30 can be raised and lowered via hydraulic control, and a total of four valve control stations that can individually control the actuators 70 and clutch cylinders 3, 63 (specifically, three pairs (six) of actuators 70 and three clutch cylinders 24, 53, 63 each) provided for raising and lowering each leg 30.

[0042] The following describes the mobile jack-up type plant module installation and maintenance repair method according to the present invention.

[0043] Figure 9 is a flowchart showing a construction method according to one embodiment of the present invention.

[0044] As illustrated, the plant module installation and maintenance repair method according to the present invention broadly includes an excavation stage, a pulling stage, a fixing structure installation stage, a leg insertion stage, a lifting unit placement stage, a plant module placement stage, and a plant module position determination stage. Here, the lifting unit placement stage and the plant module placement stage may be performed in reverse order.

[0045] In the excavation stage, a threaded hole is formed by excavating the ground in the area where the plant module P will be installed. Here, a method well known to those with ordinary skill in the art may be used to form the threaded hole.

[0046] In the pulling-in stage, a pile 10 having an inner circumferential surface of a certain diameter is pulled into the excavated screw hole. The pile 10 is manufactured to have a height, i.e., length, that can be inserted into or placed in the underground rock layer and firmly support the plant module P located above ground. The pile 10 may protrude above ground by a certain height, but it is preferable that it has a height corresponding to the ground so that the fixing structure 20 attached to the upper end can be supported by the ground.

[0047] Furthermore, the tip of the pile 10 to be pulled in may be equipped with an excavation means such as a screw, and the process of pulling in the pile 10 may involve excavation. In this case, the excavation stage and the pulling stage may be performed simultaneously.

[0048] During the installation of the fixing structure, the fixing structure 20, which has through holes communicating with the inner circumferential surface of the pile 10, is attached to the upper end of the pile 10. Preferably, the fixing structure 20 is attached to the upper end of the pile 10 through the through holes, while its bottom surface is supported by the ground.

[0049] In the leg insertion step, a leg 30, which has a clutch rail formed on its outer circumferential surface with alternating protrusions 32 and grooves 33 in the longitudinal direction, is inserted into the fixed structure 20 and pile 10 so that a portion of its upper end is exposed.

[0050] In the lifting unit placement stage, the lower end of the lifting unit 40, whose upper and lower ends are connected by the actuator 70, is supported by the fixed structure 20, and its upper end is positioned at a location corresponding to the upper end of the leg 30.

[0051] In the plant module placement stage, the plant module is placed on the upper end of the leg 30.

[0052] In the plant module positioning stage, with the upper end of the lifting unit 40 inserted into the grooves 32 of the clutch rail 31, the upper end of the lifting unit 40 moves up and down together with the leg 30 by the drive of the actuator 70, thereby determining the position of the plant module P.

[0053] At this time, when attempting to raise the plant module P, as shown in Figure 10, during the position determination stage of the plant module, the fixed clutch driven by the fixed clutch cylinder in the fixed structure 20 is disengaged from the uneven portion 32 at that position, and the lower clutch 52 driven by the lower clutch cylinder 53 at the lower end of the actuator 70 is disengaged from the uneven portion 32 at that position (see Figure 11). Subsequently, the actuator 70 is driven, and the upper end of the lifting unit 40 is raised together with the leg 30, with the lower end as the reference point. Next, when the plant module P reaches the set height, the fixed clutch driven by the fixed clutch cylinder in the fixed structure 20 is inserted into the uneven portion 32 at that position, and the lower clutch 52 driven by the lower clutch cylinder 53 at the lower end of the actuator 70 is inserted into the uneven portion 32 at that position.

[0054] Conversely, when attempting to lower the plant module P, the position determination stage of the plant module may involve disengaging the fixed clutch driven by the fixed clutch cylinder in the fixed structure 20 from the uneven portion 32 at that position, and disengaging the lower clutch 52 driven by the lower clutch cylinder 53 at the lower end of the actuator 70 from the uneven portion 32 at that position. Subsequently, the actuator 70 may be driven to lower the upper end of the lifting unit 40 together with the leg 30, using the lower end of the lifting unit 40 as a reference. Next, when the plant module P reaches the set height, the fixed clutch driven by the fixed clutch cylinder in the fixed structure 20 may be inserted into the uneven portion 32 at that position, and the lower clutch 52 driven by the lower clutch cylinder 53 at the lower end of the actuator 70 may be inserted into the uneven portion 32 at that position.

[0055] In addition, once the position of the plant module P is determined, the lifting unit 40 can be disassembled to lift or lower other plant modules P. This involves disengaging the lower clutch 52, which is driven by the lower clutch cylinder 53 at the lower end of the actuator 70, from the uneven portion 32 at that position. Subsequently, the lifting unit 40 can be disassembled with the upper clutch 62, which is driven by the upper clutch cylinder 63 at the upper end of the actuator 70, disengaged from the uneven portion 32 at that position.

[0056] At this time, the lifting unit 40 is subjected to pressure between the fixed structure 20 and the plant module P while adjusting the distance between them. Therefore, for easy dismantling, the actuator 70 can be driven to retract in the longitudinal direction, and the lifting unit 40 can be dismantled with its upper end lowered.

[0057] Here, at all times except when lifting or lowering, including when dismantling the lifting module, the fixed clutch driven by the fixed clutch cylinder in the fixed structure 20 is inserted into the recessed portion 32 at that position, thereby preventing the leg 30 from lifting or lowering, and thus enabling stable support of the plant module P.

Claims

1. A pile having a fixed diameter inner circumference, which is inserted into a threaded hole formed by excavating the ground in the area where the plant module will be installed; A fixing structure having a through hole that communicates with the inner circumferential surface of the pile, which is attached to the upper end of the pile; A clutch rail is formed on its outer circumferential surface, with alternating protrusions and grooves in the longitudinal direction, and is inserted into the interior of the fixing structure and the pile, with a plant module placed on its exposed upper end; and A mobile jack-up type plant module installation and maintenance system characterized by comprising: a lifting unit having a lower end supported by the fixed structure, an upper end positioned corresponding to the upper end of the leg, the upper and lower ends connected so as to be driveable up and down by an actuator, and a clutch selectively insertable into the grooves of the clutch rail so as to be bound to the clutch rail;

2. The aforementioned lifting unit is A lower support comprising a lower yoke supported by the aforementioned fixed structure, through which the leg passes in the center; a lower clutch insertable into the groove; and a lower clutch cylinder that inserts into or disengages from the groove while moving the lower clutch, to which a lower clutch block surrounding the clutch rail is coupled; An upper support comprising an upper yoke positioned spaced above the lower support and through which the leg passes in the center, an upper clutch insertable into the groove, and an upper clutch cylinder that moves the upper clutch while inserting into or disengaging from the groove, to which an upper clutch block in a form surrounding the clutch rail is coupled; and A mobile jack-up type plant module installation and maintenance system according to claim 1, characterized by comprising: a plurality of actuators, each having both ends connected to the lower support and the upper support, respectively, and whose length is adjusted via hydraulic pressure;

3. The aforementioned fixed structure is A fixed support is attached to the upper end of the pile so that the leg passes through the center, A mobile jack-up type plant module installation and maintenance system according to claim 2, characterized in that it includes a fixed clutch block coupled to a fixed clutch block, which has a fixed clutch that can be inserted into the groove and a fixed clutch cylinder that inserts into or disengages from the groove while moving the fixed clutch.

4. The clutch rail is formed in three rows at 120-degree intervals from the center of the cross-section of the leg, The mobile jack-up type plant module installation and maintenance system according to claim 3, characterized in that the lower support, upper support, and fixed support each have three pairs of clutch blocks, and the actuators are installed in pairs on the sides of the clutch blocks.

5. A mobile jack-up type plant module installation and maintenance system according to claim 1, further comprising a control module that controls the clutch and actuator individually, comprising a hydraulic power pack and a valve control station.

6. The excavation phase involves excavating the ground in the area where the plant module will be installed to form screw holes; A pulling step in which a pile having an inner circumferential surface of a certain diameter is pulled into the aforementioned drilled screw hole; A step of attaching a fixing structure to the upper end of the pile, the fixing structure having through holes that communicate with the inner circumferential surface of the pile; A step of inserting a leg, which has a clutch rail formed on its outer circumferential surface with alternating protrusions and grooves along its length, into the fixing structure and the pile such that a portion of its upper end is exposed; The lower end of the lifting unit, whose upper and lower ends are connected by actuators, is supported by the fixed structure, and the upper end is positioned to correspond to the upper end of the leg; The step of placing the plant module on the upper end of the leg; and A mobile jack-up type plant module installation and maintenance repair method, characterized by including the step of determining the position of the plant module while the upper end of the lifting unit is inserted into the uneven portion of the clutch rail, and the upper end of the lifting unit moves up and down together with the leg by driving the actuator.

7. In the step of determining the aforementioned position, When raising the aforementioned plant module, The step of disengaging the fixed clutch driven by the fixed clutch cylinder in the fixed structure from the uneven portion at that position, and disengaging the lower clutch driven by the lower clutch cylinder at the lower end of the actuator from the uneven portion at that position; A step of driving the actuator to raise the upper end of the lifting unit together with the leg, with the lower end of the lifting unit as the reference point; and The method for installing and maintaining a mobile jack-up type plant module according to claim 6, characterized by including the step of: when the plant module reaches a set height, inserting a fixed clutch driven by a fixed clutch cylinder in the fixed structure into the uneven portion at that position, and inserting a lower clutch driven by a lower clutch cylinder at the lower end of the actuator into the uneven portion at that position.

8. In the step of determining the aforementioned position, When lowering the aforementioned plant module, The step of disengaging the fixed clutch driven by the fixed clutch cylinder in the fixed structure from the uneven portion at that position, and disengaging the lower clutch driven by the lower clutch cylinder at the lower end of the actuator from the uneven portion at that position; A step of driving the actuator and lowering the upper end of the lifting unit together with the leg, with the lower end of the lifting unit as the reference point; and The method for installing and maintaining a mobile jack-up type plant module according to claim 6, characterized by including the step of: when the plant module reaches a set height, inserting a fixed clutch driven by a fixed clutch cylinder in the fixed structure into the uneven portion at that position, and inserting a lower clutch driven by a lower clutch cylinder at the lower end of the actuator into the uneven portion at that position.

9. The method for installing and maintaining a plant module using a mobile jack-up system, according to claim 6, further comprising the step of dismantling the lifting unit with the lower clutch driven by the lower clutch cylinder at the lower end of the actuator disengaged from the uneven portion at that position once the position of the plant module has been determined, and the upper clutch driven by the upper clutch cylinder at the upper end of the actuator disengaged from the uneven portion at that position.

10. At the stage of dismantling the aforementioned lifting unit, The mobile jack-up type plant module installation and maintenance repair method according to claim 9, characterized in that the actuator is driven to retract in the longitudinal direction, and the lifting unit is dismantled while the upper end of the lifting unit is lowered.

Images