WO2020003376A1

WO2020003376A1 - Plant module

Info

Publication number: WO2020003376A1
Application number: PCT/JP2018/024169
Authority: WO
Inventors: 佐藤　健二; 尚子岡本
Original assignee: 日揮グローバル株式会社
Priority date: 2018-06-26
Filing date: 2018-06-26
Publication date: 2020-01-02
Also published as: KR20210023792A; CN111433424A; BR112020012798A2; SG11202005506QA; CN111433424B; BR112020012798B1; KR102653819B1; KR20230117474A

Abstract

[Problem] To provide a compact plant module that allows equipment to be easily removed during maintenance while maintaining work efficiency. [Solution] A plant module comprises: a plurality of equipment units in which equipment is disposed; scaffolding that is connected to the equipment units and that is for a worker to perform work on the equipment units; a deck on which the equipment units and the scaffolding are placed; a passage that is formed between two equipment units and that is for transporting the equipment; and a retraction means for retracting the scaffolding from the passage. The scaffolding is installed between one equipment unit and another equipment unit and connects the one equipment unit with the other equipment unit over the passage.

Description

Module for plant

<< The present invention relates to a plant module including a plurality of arrangement units in which devices are arranged.

Conventionally, there has been known a module which is a machine block constituting one unit of a plant such as an FLNG facility (Floating Liquefied Natural Gas) (see, for example, Patent Document 1). In this module, a plurality of arrangement units in which a gas turbine and a generator for generating electric power by driving the gas turbine are arranged are arranged.

As shown in FIG. 11, in the conventional module 122, at least two of the plurality of arrangement units 126 are arranged to be adjacent to each other with an interval. A passage 128 is formed between adjacent arrangement units 126, and each arrangement unit 126 is provided with a dedicated scaffold 116.

モジュール In the above-described module 122, it is necessary to perform a routine operation such as maintenance and management of the gas turbine 110 and the generator (not shown) and a periodic operation such as a periodic inspection of the gas turbine 110 and the generator. Since the gas turbine 110 and the generator are located at a predetermined height from the deck 104, the scaffold 116 is provided at a predetermined height to facilitate daily work.

コア At the time of regular maintenance of the gas turbine 110, a core, which is a main component of the gas turbine 110, is pulled out from the gas turbine 110. Since the core is located at a predetermined height from the deck 104, the core passes over the scaffolds 116 and is lowered onto the passage 128 between the adjacent scaffolds 116. The unloaded core is carried out of the module 122 through a passage 128 formed between the scaffolds 116.

JP-T-2015-518943

By the way, the module 122 constituting the FLNG equipment needs to be designed so that all the equipment is installed in the limited space while securing the space necessary for the maintenance of the equipment as described above.
However, although the conventional module 122 can secure a space for carrying out the gas turbine 110 at the time of the periodic maintenance, the scaffold 116 is provided in each gas turbine 110 to secure the space. Is not fully considered and there is room for improvement.

The room for improvement described above is not limited to floating-type facilities such as FLNG facilities, but exists in all large-scale plants including modules, such as natural gas processing facilities constructed on the ground.

目的 An object of the present invention is to provide a compact plant module while securing space for carrying out equipment during maintenance.

The present invention includes the following items.
[1] A plurality of arrangement units in which devices are arranged,
A scaffold that is connected to the placement unit and allows an operator to work on the placement unit;
A deck on which the placement unit and the scaffold are placed;
A passage formed between the two placement units and for transporting the equipment;
Evacuation means for evacuation of the scaffold from the passage,
A plant module, wherein the scaffold is installed between one of the arrangement units and the other of the arrangement units, and connects one of the arrangement units and the other of the arrangement units on the passage.
[2] The scaffold has a transfer path scaffold located on a transfer path on which the device is transferred, and a transfer path outside scaffold located outside the transfer path,
The transport path upper scaffold and the transport path outer scaffold are separated from each other,
The plant module according to [1], wherein the scaffold on the transport path has the retreating means.
[3] The scaffold is
A floor portion having a floor surface on which an operator moves,
A pillar for holding the floor at a predetermined height from the deck;
A fixing portion for detachably fixing the pillar portion to the deck,
A joint member for joining the fixing portion and the deck,
The plant module according to [1] or [2], wherein the module is retracted from the passage when the joining member is removed.
[4] the scaffold includes a roller disposed between the pillar and the deck;
The plant module according to [3], wherein the retracting unit is the roller.
[5] The scaffold is
A floor portion having a floor surface on which an operator moves,
A hinge portion for opening and closing at least a part of the floor portion,
With
The retracting means is the hinge portion,
The plant module according to [1] or [2], wherein the scaffold retreats from the passage by rotating the floor via the hinge.
[6] The scaffold is
A floor portion having a floor surface on which an operator moves,
A lift unit for vertically moving the floor,
With
The evacuation unit is the lift unit,
The plant module according to [1] or [2], wherein the scaffold raises the floor section via the lift section and retreats from the passage.
[7] A suspending portion that is located above the scaffold, suspends the scaffold, and vertically moves up and down,
The retreating means is the plant module of [1] or [2], which is the hanging part.
[8] The plant module according to any one of [1] to [7], wherein the device is a gas turbine.
[9] The plant module according to any one of [1] to [8], which is arranged in a floating facility.
[10] The plant module according to [9], wherein the floating equipment is FLNG equipment (Floating Liquefied Natural Gas).

According to the present invention, it is possible to provide a compact plant module while securing a space for carrying out equipment during maintenance.

It is an outline perspective view showing the module for plants concerning an embodiment. It is the schematic diagram which looked at the principal part of the module for plants which concerns on embodiment from above. It is the schematic diagram which looked at the principal part of the module for plants which concerns on embodiment from the side (X direction of FIG. 2). It is the schematic diagram which looked at the principal part of the module for plants which concerns on embodiment from the side (Y direction of FIG. 2). It is an enlarged view of the pillar base part of the pillar part concerning embodiment. It is a figure showing the state where the scaffold concerning an embodiment was evacuated. It is an enlarged view of the column base part of the column part concerning other embodiments. It is a schematic diagram in the case where a hinge part is provided as a retreat means of the scaffold according to the embodiment. FIG. 8A is a schematic view of a main part of the plant module as viewed from above, and FIG. 8B is a side view of the main part of the plant module from the side (the Z direction in FIG. 8A). It is the schematic diagram seen. It is a schematic diagram in the case where a hinge part is provided as a retreat means of the scaffold according to the embodiment. FIG. 10A is a schematic diagram illustrating a case where a lift unit is provided, and FIG. 10B is a schematic diagram illustrating a case where a suspension unit is provided as a scaffold retreating unit according to the embodiment. It is a principal part enlarged view of the conventional module for plants.

Hereinafter, with reference to the drawings, a description will be given of a plant module according to an embodiment of the present invention, taking a module constituting a gas turbine power plant as an example. FIG. 1 is a perspective view of the module according to the embodiment as viewed from above. The plant module 2 (hereinafter abbreviated as module 2) includes FLNG equipment (Floating Liquefied Natural Gas: Floating Liquefied Natural Gas Production Equipment) and FPSO equipment (Floating Production, Storage and Offloading System: Floating Offshore Oil and Gas Production). It is a machine block that constitutes one unit of a plant mounted on a floating facility such as a storage and unloading facility, and a plurality of stories are formed by the deck 4.

FIGS. 2 to 4 are schematic diagrams of the arrangement unit 6 which is a unit section for arranging devices in the module 2. FIG. Here, FIG. 2 is a diagram of the arrangement unit 6 as viewed from above, and FIG. 3 is a diagram of these as viewed from the X direction shown in FIG. FIG. 4 is a diagram of these as viewed from the Y direction shown in FIG. Here, among the plurality of arrangement units 6 arranged in the module 2, only two arrangement units 6 are displayed.

As shown in FIGS. 2 to 4, the module 2 includes a plurality of arrangement units 6 on which devices are arranged, and a scaffold 7 connected to the arrangement units 6 for the worker H to work on the arrangement units 6. A deck 4 on which the placement unit 6 and the scaffold 7 are placed; a passage 8 formed between the two placement units 6 for transporting equipment; and evacuation means 9 (evacuation of the scaffold 7 from the passage 8) FIG. 5).

In this embodiment, devices such as the gas turbine 10 and the generator 12 are mounted on the arrangement unit 6. The generator 12 is a device that generates power by driving the gas turbine 10. In the present embodiment, the arrangement unit 6 is formed in a rectangular shape. The gas turbine 10 is arranged such that the longitudinal direction of a shaft (not shown) matches the long side direction of the arrangement unit 6.

配置 Adjacent arrangement units 6 are arranged such that long sides face each other. Adjacent arrangement units 6 are arranged so that the gas turbine 10 faces in the same direction. The passage 8 is formed between two adjacent placement units 6 and also has a role as a transfer path for transferring the gas turbine 10 and the generator 12.

足 As shown in FIG. 4, the scaffold 7 is installed between the one arrangement unit 6a and the other arrangement unit 6b, and connects the one arrangement unit 6a and the other arrangement unit 6b on the passage 8. The scaffold 7 is a work floor on which the worker H works on the placement unit 6, and is connected to the placement unit 6. The work includes, for example, daily work such as maintenance and management of the gas turbine 10 and the generator 12 and periodic work such as periodic maintenance of the gas turbine 10 and the generator 12.

足 The scaffold 7 of the present embodiment includes a floor 18 and a pillar 20. The floor portion 18 is formed in a rectangular plate shape, and a floor surface on which the worker H moves is formed on the upper surface. Further, the pillar portion 20 is detachably fixed to the deck 4, and holds the floor portion 18 at a predetermined height from the deck 4. As described above, the scaffold 7 of the present embodiment connects one arrangement unit 6a and the other arrangement unit 6b, which are located on the passage 8 and on both sides in the width direction of the passage 8, with each other. Therefore, the worker H can easily move to the other placement unit 6b across the scaffold 7 and perform the work without going down to the passage 8 after finishing the work in one placement unit 6a. For this reason, the burden of daily work on the worker is reduced.

FIG. 5 is an enlarged view of a pillar portion of the pillar portion 20. In the present embodiment, the scaffold 7 includes the evacuation unit 9. As shown in FIG. 5, the scaffold 7 includes a roller 22 as the retracting means 9 between the pillar portion 20 and the deck 4. The roller 22 is arranged between the lower end of the pillar 20 and the deck 4. The roller 22 is used when the scaffold 7 is retracted (moved) from the passage 8.

{Circle around (2)} On both sides of the pillar portion 20 with the roller 22 interposed therebetween, plates 24 as fixing portions for detachably fixing the pillar portion 20 to the deck 4 are arranged. The plate 24 and the deck 4 and the plate 24 and the column 20 are respectively joined by bolts 26 as joining members via

flanges

24a and 24b.

In the present embodiment, the plate 24 is provided on the column 20 to which the roller 22 is attached, and the column 20 is fixed to the deck 4. As described above, by disposing the plate 24 with the roller 22 serving as a movable part therebetween and fixing the pillar portion 20 to which the roller 22 is attached directly to the deck 4, the scaffold 7 that is resistant to shaking particularly at sea is realized. Can be.

Next, the procedure for unloading the equipment subject to maintenance will be described. First, it is assumed that maintenance of a certain gas turbine 10 becomes necessary as a result of the periodic inspection. In this case, as shown in FIG. 2, in a state where the scaffold 7 is located on the passage 8, the worker H removes the bolt 26 shown in FIG. 5 from the deck 4 and the plate 24. Next, the worker H moves the scaffold 7 by running the rollers 22 on the passage 8 and retracts the scaffold 7 out of the passage 8 as shown in FIG. Next, the core 11 of the gas turbine 10 requiring maintenance is pulled out onto the passage 8 and lowered onto the deck 4. The lowered core 11 is moved along the passage 8 and carried out of the module 2. The unloaded core 11 is transported to a predetermined facility, where maintenance is performed.

According to the module 2 according to the above-described embodiment, the scaffold 7 (a scaffold 7a on a transport route to be described later) located on the unloading route of the core 11 of the gas turbine 10 to be maintained can be retracted, thereby performing maintenance. At times, the scaffold 7 can be moved to form a carry-out path for the core 11. Specifically, by retreating the scaffold 7, it is possible to secure a space that extends in the vertical direction for pulling out the core 11 from the gas turbine 10 and lowering it on the deck 4, and moving the lowered core 11 out of the module 2. A space extending in the horizontal direction for carrying out can be secured. For this reason, an independent scaffold is not required for each arrangement unit 6, and a compact module 2 in which the arrangement units 6 are installed close to each other can be realized, and the core 11 of the gas turbine 10 is easily carried out during maintenance. It becomes possible.

That is, the width of the module 2 can be reduced and the scaffold 7 can be retracted from the passage 8 by the shared use of the scaffolds 7 and the arrangement units 6 can be installed close to each other, so that the core 11 of the gas turbine 10 is carried out during maintenance. Space can be secured. Further, when the scaffold 7 is retracted out of the passage 8, the roller 22 is moved while running on the passage 8, so that the evacuation operation is easy.

In addition, according to the module 2 according to the above-described embodiment, the scaffold 7 is installed so as to connect the adjacent placement units 6, so that the common work can be performed on both placement units 6 using the common scaffold 7. It can be performed.

The module 2 of the present invention is not limited to the above-described embodiment, and it is needless to say that various modifications can be made without departing from the scope of the present invention.

In the above-described embodiment, as shown in FIG. 7, an L-shaped plate having an L-shaped cross section is provided on both sides of the pillar portion 20 with the roller 22 therebetween, as a fixing portion for detachably fixing the pillar portion 20 to the deck 4. 25 may be arranged. Also in this case, it is possible to realize the scaffold 7 that is resistant to shaking on the sea.

In the above-described embodiment, the bolts 26 and the rollers 22 function as the retreating means 9 for the scaffold 7, remove the bolts 26 from the deck 4 and the plate 24, and roll the rollers 22 disposed below the pillars 20. Thus, the scaffold 7 is retracted out of the passage 8, but the retracting means 9 of the scaffold 7 may be other than the bolt 26 and the roller 22. For example, as shown in FIG. 8A, the scaffold 7 is provided with a hinge 30 as a retreating means 9 for the scaffold 7, and the floor 18 is opened and closed with the hinge 30 as an axis, thereby retreating the scaffold 7 from above the passage 8. You may let it. Specifically, when unloading the core 11 of the gas turbine 10, as shown in FIG. 8B, the floor 18 is rotated upward about the hinge 30 and the floor 18 is rotated. Alternatively, the scaffold 7 may be retracted by being folded toward the gas turbine 10 located on the opposite side to the gas turbine 10 from which the core 11 is pulled out. Then, the core 11 may be pulled out from the other arrangement unit 6b, lowered on the passage 8 (see the broken line arrow in FIG. 8B), and carried out. Also in this case, the core 11 of the gas turbine 10 can be easily carried out at the time of maintenance while reducing the burden of daily work.

FIG. 8A shows a case where the hinge unit 30 is provided on one of the arrangement units 6a, but the hinge unit 30 may be provided on the other arrangement unit 6b. . Further, the hinge portion 30 may be provided on both the one arrangement unit 6a and the other arrangement unit 6b, and may be folded on either arrangement unit 6 side. 8A and 8B, the entire floor 18 is rotated around the hinge 30. However, only a part of the floor 18 may be rotated. For example, as shown in FIG. 9, the floor 18 may be bisected at the center, and only the floor 18 located on the side opposite to the side where the core 11 of the gas turbine 10 is carried out may be folded. Then, the core 11 may be pulled out from the other arrangement unit 6b, passed over the floor 18, and then lowered onto the passage 8 (see the dashed arrow in FIG. 9).

As shown in FIG. 10A, the scaffold 7 may include, as the evacuation unit 9, a lift unit 32 that moves the floor 18 up and down in the vertical direction. In this case, when the core 11 of the gas turbine 10 is carried out, the lift 32 is raised to retreat the scaffold 7 upward. Also in this case, the core 11 can be easily carried out at the time of maintenance while reducing the burden of daily work.

Further, as shown in FIG. 10B, the module 2 is provided with, for example, a hanging portion for hanging the scaffold 7 and vertically moving the deck 4 on the deck 4 located above the ceiling 8 (on the ceiling side). Is also good. The suspension may be a winch 33 that has a pulley 34 and a chain 36 that is connected to the pulley 34 so as to be wound up. In this case, a hook portion such as a hook (not shown) may be provided on the scaffold 7, and the chain 36 hooked on the hook portion may be wound or unwound by the pulley 34 to raise and lower the floor portion 18 in the vertical direction. In this case, the winch 33 functions as the evacuation means 9 for the scaffold 7. The pulley 34 may have a function of moving the deck 4 on the ceiling side in the horizontal direction. The pulley 34 moves the suspended scaffold 7 in the horizontal direction along the passage 8 and retreats from the passage 8. You may. Although not shown, the hanging portion may be a permanent crane fixed to the ceiling, or may be a crane carried in as needed.

In the above-described embodiment, as shown in FIG. 6, the path 8 includes a transport path 8a serving as a path on which the core 11 as a device is transported, and a non-transport path 8b other than the transport path 8a. May be provided. That is, the non-transport path 8b is a portion of the passage 8 through which the core 11 does not pass. The scaffold 7 may include a transport path upper scaffold 7a located on the transport path 8a and a transport path outer scaffold 7b located outside the transport path 8a (non-transport path 8b). The transport path upper scaffold 7a and the transport path outer scaffold 7b are separated from each other and independent of each other. Specifically, when the core 11 of the gas turbine 10 is carried out from one arrangement unit 6a and the core 11 of the gas turbine 10 is not carried out from the other arrangement unit 6b, the conveyance in which the core 11 of the gas turbine 10 is carried. The transport path upper scaffold 7a located on the path 8 serving as the path 8a has a retracting means 9 for retracting the transport path upper scaffold 7a. On the other hand, it is not necessary to retreat the scaffold 7b outside the transport route that is located on the passage 8 that is not the transport route 8a.

In the above embodiment, the case where the module 2 is mounted on a floating facility such as an FLNG facility or an FPSO facility is described as an example, but the module 2 may be arranged on the ground. For example, the embodiment according to the present invention can also be applied to a module 2 configuring a large plant such as a natural gas processing facility constructed on the ground.

Further, in the above-described embodiment, the case where the gas turbine 10 is mounted on the arrangement unit 6 and the core 11 of the gas turbine 10 is carried out is taken as an example, but devices other than the core 11 of the gas turbine 10 are arranged. It may be mounted on the unit 6 and carried out.

That is, in the above-described embodiment, the case where the pair of arrangement units 6 on which the gas turbines 10 are installed are placed adjacent to each other on the deck 4 has been described, but the present invention is not limited to this. Different devices may be placed on adjacent placement units 6. For example, the gas turbine 10 may be installed in one arrangement unit 6a, the pump may be installed in the other arrangement unit 6b, and the passage 8 may be formed between the one arrangement unit 6a and the other arrangement unit 6b. . Further, for example, the equipment installed in one of the adjacent arrangement units 6a is drawn out to the passage 8 and carried out during maintenance, and the equipment installed in the other arrangement unit 6b is carried out during maintenance. Alternatively, maintenance may be performed in the other arrangement unit 6b.

Further, in the above-described embodiment, the pair of plates 24 are provided on both sides of the column 20 in a direction intersecting (orthogonal to) the moving direction of the roller 22 (see FIGS. 5 and 7). However, the pair of plates 24 may be provided on both sides of the column 20 in the moving direction of the roller 22.
Further, in the above-described embodiment, the case where at least two arrangement units 6 are mounted on the deck 4 has been described, but the present invention is not limited to this. Three or more arrangement units 6 may be placed adjacent to the deck 4. In this case, three or more arrangement units 6 may be arranged in a line, and a passage 8 may be formed between adjacent arrangement units 6.

2 Module 4 Deck 6 Placement unit 6a One placement unit 6b The other placement unit 7 Scaffolding 8 Passage 9 Evacuation means 10 Gas turbine 11 Core 12 Generator 18 Floor section 20 Column section 22 Roller (evacuation means)
24 plate (fixed part)
24a flange 24b flange 25 L-shaped plate 26 bolt 30 hinge part (retreat means)
32 Lift part (evacuation means)
33 Winch (evacuation means)
34 pulley 36 chain 104 deck 110 gas turbine 116 scaffold 122 module 126 placement unit 128 passage

Claims

A plurality of arrangement units in which the equipment is arranged,
A scaffold that is connected to the placement unit and allows an operator to work on the placement unit;
A deck on which the placement unit and the scaffold are placed;
A passage formed between the two placement units and for transporting the equipment;
Evacuation means for evacuation of the scaffold from the passage,
A plant module, wherein the scaffold is installed between one of the arrangement units and the other of the arrangement units, and connects one of the arrangement units and the other of the arrangement units on the passage.
The scaffold has a transport path upper scaffold located on a transport path where the device is transported, and a transport path outer scaffold located outside the transport path,
The transport path upper scaffold and the transport path outer scaffold are separated from each other,
The plant module according to claim 1, wherein the scaffold on the transport path includes the evacuation unit.
The scaffold is
A floor portion having a floor surface on which an operator moves,
A pillar for holding the floor at a predetermined height from the deck;
A fixing portion for detachably fixing the pillar portion to the deck,
A joint member for joining the fixing portion and the deck,
The plant module according to claim 1, wherein the module is retracted from the passage when the joining member is removed.
The scaffold includes a roller disposed between the pillar and the deck,
The plant module according to claim 3, wherein the retracting unit is the roller.
The scaffold is
A floor portion having a floor surface on which an operator moves,
A hinge portion for opening and closing at least a part of the floor portion,
With
The retracting means is the hinge portion,
The plant module according to claim 1, wherein the scaffold retreats from the passage by rotating the floor through the hinge.
The scaffold is
A floor portion having a floor surface on which an operator moves,
A lift unit for vertically moving the floor,
With
The evacuation unit is the lift unit,
The plant module according to claim 1, wherein the scaffold raises the floor portion via the lift portion and retreats from the passage.
Positioned above the scaffold, comprising a hanging portion for hanging the scaffold and vertically moving up and down,
The plant module according to claim 1, wherein the evacuation unit is the hanging part.
The plant module according to any one of claims 1 to 7, wherein the equipment is a gas turbine.
The plant module according to any one of claims 1 to 8, which is disposed in a floating facility.
The plant module according to claim 9, wherein the floating facility is a FLNG facility (Floating Liquefied Natural Gas).