JP7134613B2 - Gasification furnace manufacturing method and gasification furnace - Google Patents

Description

TECHNICAL FIELD The present invention relates to a method for manufacturing a gasification furnace and a gasification furnace.

Conventionally, as a gasification furnace facility, a carbon-containing solid fuel such as coal is supplied into the gasification furnace, and the carbon-containing solid fuel is gasified by partially burning it, thereby producing a combustible gas. Carbon-containing fuel gasification Installations (coal gasification installations) are known. This gasification furnace, for example, partially burns coal (pulverized coal) and char (unreacted coal and ash) supplied inside with an oxidizing agent (air, oxygen) to gasify and produce a generated gas. It is. Since this gasification furnace contains various reaction equipment and heat exchangers in the pressure vessel, after manufacturing the integrated structure in a horizontal horizontal position on the ground, the integrated structure is placed in a horizontal horizontal position. It was installed by transporting it to the installation site and erecting the gasifier in a horizontal position at the installation site. However, due to the increase in size of the gasifier, etc., there is a problem that the transportation cost, etc., increases for transportation to the installation site of the monolithic gasifier as the reactor becomes large, for example, over 50 m in height. was there. A coal gasification furnace disclosed in Patent Document 1 is intended to solve such problems.

In the coal gasification furnace of Patent Document 1, the coal gasification furnace is divided into a plurality of modules, and each module is housed in a shipping container and transported to the site. During transportation, the shipping container in which each module is housed is mounted on the ship or trailer so that the length of the coal gasifier in the height direction is parallel to the fore and aft line of the ship or the longitudinal direction of the trailer. be.

JP 2015-52085 A

However, in the coal gasification furnace of Patent Document 1, there is no description of how to assemble a plurality of divided modules on site.
When assembling such a plurality of divided modules on site, if the modules are assembled from the bottom module to the top module in order from the bottom, the modules must be stacked. In this case, it is necessary to lift the module, which is a heavy object, and move it in the horizontal direction while being lifted. Moving the lifted module in the horizontal direction may increase and complicate the process of assembling the module, and may increase the size of the lifting device.

The present invention has been made in view of the above circumstances, and is intended to simplify the manufacturing of the gasifier and to simplify the apparatus for lifting the divided components of the gasifier. It is an object of the present invention to provide a method for manufacturing a gasification furnace and a gasification furnace.

In order to solve the above problems, the method for manufacturing a gasification furnace and the gasification furnace of the present invention employ the following means.
A method for manufacturing a gasification furnace according to an aspect of the present invention includes a first pressure vessel and a second pressure vessel that are part of the pressure vessel of the gasification furnace divided into a plurality of parts in the height direction. A method comprising: a first raising step for raising the first pressure vessel; a lifting step of lifting the second pressure vessel to the side; a second lifting step of lifting the second pressure vessel; and lowering the first pressure vessel lifted in the lifting step vertically downward, and a connecting step of connecting the upper end of the second pressure vessel erected in the second erecting step.

In the above configuration, the first pressure vessel is lifted substantially vertically upward in the lifting process, the lifted first pressure vessel is lowered substantially vertically downward, and the first pressure vessel and the second pressure vessel are erected in the second erecting process. is connected with Thereby, the first pressure vessel and the second pressure vessel can be connected without horizontally moving the first pressure vessel to the second position where the gasification furnace is installed while being lifted. Therefore, the manufacture of the gasification furnace can be simplified as compared with the case where the first pressure vessel is lifted and moved in the horizontal direction. In addition, since it is sufficient that the lifting device for lifting the pressure vessel can lift only in the vertical and vertical directions, the device for lifting can be simplified compared to the case where the pressure vessel is moved in the vertical and horizontal directions. .
Further, for example, even when connecting another pressure vessel (for example, a third pressure vessel erected in the erecting step) to the second pressure vessel, the connected first pressure vessel and The height of the second pressure vessel is about the same as the work of lifting the first pressure vessel when connecting the first pressure vessel and the second pressure vessel (that is, the distance from the ground to the lower end of the lifted pressure vessel ) can be connected by lifting. In this way, the same work can be repeated to manufacture the gasifier, so the manufacturing process of the gasifier can be reliably advanced.
It should be noted that the “vertical upper side” means not only the vertically upward direction but also the entire upward direction. In addition, the “vertically lower side” means not only the vertically downward direction but also the downward direction in general.

Further, a method for manufacturing a gasification furnace according to an aspect of the present invention includes a first loading step of loading the first pressure vessel into the first position, and a second loading step of loading the second pressure vessel into the first position. and a carrying-in step, wherein the first raising step raises the first pressure vessel carried in in the first carrying-in step at the first position using an intermediate jack device, and the second raising step In the raising step, the second pressure vessel carried in in the second carrying-in step is raised at the first position using the intermediate jack device, and the intermediate jack device is vertically above the first position. A first lifting section for lifting and a second lifting section for lifting from a vertically upper side of the second position, wherein the first pressure vessel and the second pressure vessel are lifted from the first position to the second position. It may be moved to and raised up.

In the above configuration, the intermediate jack includes the first lifting portion for lifting from the vertically upper side of the first position and the second lifting portion for lifting from the vertically upper side of the second position. As a result, by adjusting the lifted height state of the first lifting part and the second lifting part, the pressure vessel that has been horizontally placed at the first position can be moved to the second position and erected. can. Therefore, since the moving process of moving the pressure vessel and the raising process of raising the pressure vessel can be performed simultaneously, the number of manufacturing processes can be reduced compared to the case where the moving process and the raising process are performed separately. can.

Further, a method for manufacturing a gasification furnace according to an aspect of the present invention includes a first loading step of loading the first pressure vessel into the first position, and a second loading step of loading the second pressure vessel into the first position. a carrying-in step, wherein the first raising step raises the first pressure vessel carried in in the first carrying-in step at the first position using a raising jig; In the erecting step, the second pressure vessel carried in in the second carrying-in step is erected at the first position using the erecting jig, and between the first erecting step and the lifting step comprises a first moving step of moving the erected first pressure vessel to the second position where it is lifted in the lifting step, and between the second erecting step and the connecting step, the A second moving step of moving the second pressure vessel to the second position may be provided.

In the above configuration, the first pressure vessel and the second pressure vessel are raised at the first position using the raising jig and then moved to the second position. In this way, by separating the erecting process and the moving process into separate processes, each pressure vessel can be reliably erected and moved.

Further, in the method for manufacturing a gasification furnace according to an aspect of the present invention, the gasification furnace is housed inside a first internal component housed inside the first pressure vessel and inside the second pressure vessel. a first built-in component erecting step for erecting the first built-in component at the second position after the lifting step at the second position; and a first built-in component erecting step. a first temporary fixing step of lowering the first pressure vessel vertically downward to temporarily fix the first built-in part inside the first pressure vessel; a second lifting step of lifting vertically upward the first pressure vessel temporarily fixed to the first pressure vessel; a third lifting step of lifting the first pressure vessel and the second pressure vessel connected in the connecting step; After the lifting step, the second internal component erecting step of erecting the second internal component, and after the second internal component erecting step, the second pressure vessel is lowered vertically downward to lift the second pressure vessel. and a built-in component connecting step of connecting the lower end of the first built-in component and the top end of the second built-in component. good.

In the above configuration, the pressure vessel and the built-in parts are erected separately. This makes it possible to reduce the weight of the members that are erected at once. Therefore, the erecting work can be facilitated. Further, for example, when a jig or device is used for standing up, the jig or device can be simplified. Furthermore, transportation to the installation site is facilitated.
In addition, when the pressure vessel and the built-in parts are erected after being temporarily fixed, it is necessary to have a strong structure so that the temporarily fixed portion can withstand the erecting work. In the above configuration, the pressure vessel and the built-in parts are temporarily fixed after being erected, so the temporary fixing structure can be simplified compared to the case where the pressure vessel and the built-in parts are temporarily fixed and then erected. can be done.

Further, in the method for manufacturing a gasification furnace according to an aspect of the present invention, the gasification furnace is housed inside a first internal component housed inside the first pressure vessel and inside the second pressure vessel. A second built-in component is provided, and the first erecting step, the lifting step, and the connecting step are performed in a state in which the first built-in component is temporarily fixed inside the first pressure vessel. The raising step and the connecting step are performed while the second internal component is temporarily fixed inside the second pressure vessel, and connect the lower end of the first internal component and the upper end of the second internal component. A built-in component connecting step may be provided.

In the above configuration, the erecting process, the lifting process, and the connecting process are performed while the built-in component is temporarily fixed inside the pressure vessel. In addition, the built-in parts are transported to the installation site in a state in which they are temporarily fixed inside the pressure vessel. As a result, erecting work and lifting work can be performed at the installation site without providing a fixing member (for example, a frame surrounding the built-in part) to fix a jig for erecting the built-in part. , the manufacturing process at the installation site can be reduced.

Further, in the method for manufacturing a gasification furnace according to an aspect of the present invention, the first internal component and the second internal component are in a state in which the first pressure vessel and the second pressure vessel are connected in the connecting step. In the above, the lower end of the first built-in component and the upper end of the second built-in component may be temporarily fixed to the first pressure vessel and the second pressure vessel, respectively, so as to be separated from each other.

In the above configuration, the first internal component and the second internal component are temporarily fixed to the first pressure vessel and the second pressure vessel, respectively, so as to be separated from each other. Thereby, when connecting the first pressure vessel and the second pressure vessel, the first built-in part and the second built-in part do not interfere with each other. Therefore, damage to the first built-in component and the second built-in component can be prevented. In addition, since the process of rearranging the first built-in part and/or the second built-in part so that the first built-in part and the second built-in part do not interfere with each other can be reliably omitted, the manufacturing process of the gasifier can be shortened. can do.

Further, in the method for manufacturing a gasification furnace according to an aspect of the present invention, a first flange portion protruding radially outward from an outer peripheral surface is formed at a lower end portion of the first pressure vessel, and the second pressure vessel has a lower end portion that protrudes radially outward. A second flange portion projecting radially outward from the outer peripheral surface is formed on the upper end portion of the , the first flange portion is formed with a first bolt hole penetrating vertically, and the second flange portion is formed with a first bolt hole that penetrates vertically. , a second bolt hole penetrating vertically is formed, and in the connecting step, a bolt attached to the tip of a wire that is inserted through the first bolt hole and the second bolt hole is lifted so as to connect the first bolt hole and the second bolt hole. You may connect by making a bolt penetrate from the downward direction with respect to 2 bolt holes.

In the above configuration, for example, a nozzle or the like is provided above the flange portion where the bolt holes are formed, and even if it is not possible to secure a work space for inserting the bolt holes from above, the bolts can be inserted into the bolt holes. It is possible to insert the split pressure vessels, and it is possible to suitably perform the connection work of the divided pressure vessels.

Further, a gasification furnace according to an aspect of the present invention is a gasification furnace including a first pressure vessel and a second pressure vessel that are part of a plurality of pressure vessels divided in a height direction, a first internal component housed inside a pressure vessel; a second internal component housed inside said second pressure vessel; and a second temporary fixing portion for temporarily fixing the second built-in component to the second pressure vessel, wherein the first temporary fixing portion and the second temporary fixing portion are the In a state in which the first pressure vessel and the second pressure vessel are connected, the first internal component and the second internal component are separated from each other in the first pressure vessel and the second pressure vessel, respectively. The first built-in component and the second built-in component can be temporarily fixed.

Further, in the gasification furnace according to the aspect of the present invention, the first temporary fixing part may be capable of moving the temporarily fixed first built-in component so as to come into contact with the second built-in component.

Further, in the gasification furnace according to the aspect of the present invention, the second temporary fixing section may move the second internal component to be temporarily fixed so as to come into contact with the first internal component.

Further, in the gasification furnace according to one aspect of the present invention, a first flange portion protruding radially outward from an outer peripheral surface is formed at the lower end portion of the first pressure vessel, and the upper end portion of the second pressure vessel is formed. is formed with a second flange portion that protrudes radially outward from the outer peripheral surface; the first flange portion is formed with a first bolt hole that penetrates vertically; A penetrating second bolt hole may be formed, and a bolt passing through the first bolt hole and the second bolt hole to connect the first pressure vessel and the second pressure vessel may be provided.

ADVANTAGE OF THE INVENTION According to this invention, the manufacturing of a gasification furnace can be simplified, and the apparatus etc. which lift the structural member of the divided gasification furnace can be simplified.

1 is a schematic configuration diagram showing a gasification furnace according to an embodiment of the present invention; FIG. FIG. 3 is a schematic plan view showing a state before carrying in the pressure vessel and built-in parts according to the first embodiment of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a diagram showing a gasification furnace according to a first embodiment of the present invention, where (a) is an enlarged view showing connecting portions of pressure vessels, (b) shows a connecting step, and (c) 4] is an enlarged view of a main part of a bolt used for connection. [FIG. 1 is a diagram showing a gasification furnace according to a first embodiment of the present invention, and is a schematic diagram showing an installation state of the gasification furnace. FIG. BRIEF DESCRIPTION OF THE DRAWINGS It is a figure which shows the manufacturing method of the gasification furnace which concerns on 1st Embodiment of this invention, (a) to (c) shows the process to stand up a 1st pressure vessel, (d) to (f) shows the 1st pressure vessel. (g) and (h) show the process of temporarily fixing the first pressure vessel and the first built-in part, and (i) shows the gasification furnace after assembly. be. 1 is a diagram showing a gasification furnace according to a first embodiment of the present invention, and is a schematic diagram showing a state in which built-in parts are temporarily fixed to a pressure vessel; FIG. FIG. 4 is a diagram showing a method for manufacturing a gasification furnace according to the first embodiment of the present invention, in which (a) to (c) show a step of connecting the fifth pressure vessel, and (d) shows the flange surface. It shows the process of measuring the levelness. FIG. 4 is a diagram showing a method for manufacturing a gasification furnace according to a second embodiment of the present invention, in which (a) to (c) show the step of erecting the first unit, and (d) to (f) show the second unit. FIG. 8 shows a process of erecting the units, (g) shows a process of temporarily fixing the first unit, the second unit and the first unit, and (h) shows the completed gasification furnace. FIG. 10 is a schematic plan view showing a state before carrying-in of the pressure vessel and built-in parts according to the second embodiment of the present invention; FIG. 10 is a diagram showing a method of manufacturing a gasification furnace according to a third embodiment of the present invention, in which (a) shows a step of loading a pressure vessel, and (b) to (d) show a step of erecting the pressure vessel; and (e) and (f) are diagrams of the steps of connecting the pressure vessel. 11A to 11C are diagrams showing the details of the step of raising the pressure vessel, etc., in which (a) to (c) show the step of raising the pressure vessel, and (d) shows the step of moving the pressure vessel. FIG. 12 is a perspective view of the erecting jig and the pressure vessel of FIG. 11;

An embodiment of a method for manufacturing a gasification furnace and a gasification furnace according to the present invention will be described below with reference to the drawings. In the embodiments described below, the terms "upper" and "top" indicate the upper side in the vertical direction, and the terms "downward" and "lower side" indicate the lower side in the vertical direction.
[First embodiment]
A first embodiment of the present invention will be described below with reference to FIGS. 1 to 7. FIG.

First, the structure of the gasification furnace 101 according to this embodiment will be described with reference to FIG.
The gasification furnace 101 is formed to extend in the vertical direction, pulverized coal and oxidizing agents (air, oxygen) are supplied to the lower side in the vertical direction, and the generated gas gasified by partial combustion is supplied to the lower side in the vertical direction. It flows upward from the The gasification furnace 101 has a pressure vessel 110 and an internal equipment section (internal component) 100 (see FIG. 2) housed inside the pressure vessel 110 . The built-in device section 100 according to this embodiment includes a gasification furnace wall 111 and a syngas cooler 102 provided inside the gasification furnace wall 111 . The gasification furnace 101 forms an annulus 115 in the space between the pressure vessel 110 and the gasification furnace wall 111 . In addition, in the space inside the gasification furnace wall 111, the gasification furnace 101 has a combustor section 116, a diffuser section 117, and a reductor section 118 in this order from the lower side in the vertical direction (that is, the upstream side in the flow direction of the generated gas). forming. In addition, as shown in FIG. 3, the pressure vessel 110 according to the present embodiment can be divided into, for example, five pieces in the height direction, and the built-in device section 100 can be divided into, for example, four pieces in the height direction. formed. How the pressure vessel 110 and the built-in device section 100 are divided will be described later.

The pressure vessel 110 is formed in a cylindrical shape with a hollow space inside, and has a gas discharge port 121 formed at its upper end and a slag hopper 122 formed at its lower end (bottom). The gasification furnace wall 111 is formed in a cylindrical shape with a hollow space inside, and the wall surface is provided facing the inner surface of the pressure vessel 110 . In this embodiment, the pressure vessel 110 is, for example, cylindrical, and the diffuser portion 117 of the gasifier wall 111 is also cylindrical. The pressure vessel is made of metal and has a large diameter and thick wall (length in the radial direction). The gasification furnace wall 111 is fixed to the inner surface of the pressure vessel 110 by a fixing member (not shown).

The gasification furnace wall 111 includes a plurality of tubular furnace wall tubes (not shown) extending in the vertical direction and provided in parallel, and a wall portion (not shown) connecting between the furnace wall tubes. omitted). Cooling water flows inside the furnace wall tube.
The gasifier wall 111 also separates the interior of the pressure vessel 110 into an interior space 154 and an exterior space 156 . The gasifier wall 111 has a cross-sectional shape that changes at a diffuser portion 117 between a combustor portion 116 and a reductor portion 118 . The gasification furnace wall 111 has a vertically upper upper end connected to the gas discharge port 121 of the pressure vessel 110 and a vertically lower lower end provided with a gap from the bottom of the pressure vessel 110 . It is Retained water is stored in the slag hopper 122 formed at the bottom of the pressure vessel 110, and the inside and outside of the gasifier wall 111 are sealed when the lower end of the gasifier wall 111 is submerged in the stored water. is stopping. Burners 126 and 127 are inserted into the gasifier wall 111 , and the syngas cooler 102 is arranged in an internal space 154 on the upper side of the gasifier wall 111 .

The annulus portion 115 is a space formed between the inside of the pressure vessel 110 and the outside of the gasification furnace wall 111, that is, the external space 156, and nitrogen separated by, for example, air separation equipment (not shown) is used as an inert gas. It is supplied to the external space 156 through a nitrogen supply line (not shown). Therefore, the annulus portion 115 becomes a space filled with nitrogen. An in-furnace pressure equalizing pipe (not shown) for equalizing the pressure in the gasification furnace 101 is provided near the upper portion of the annulus portion 115 in the vertical direction. The in-furnace pressure equalizing pipe is provided to communicate the inside and outside of the gasification furnace wall 111, and the pressure between the inside (combustor section 116, diffuser section 117 and reductor section 118) and the outside (annulus section 115) of the gasification furnace wall 111 is The pressure is substantially equalized so that the difference is within a predetermined pressure.

The combustor section 116 is a space for burning a carbon-containing solid fuel, such as pulverized coal and char, and an oxidant (air, oxygen). A combustion device consisting of High-temperature combustion gas generated by combusting the pulverized coal and char in the combustor section 116 passes through the diffuser section 117 and flows into the reductor section 118 .

The reductor section 118 is maintained at a high temperature necessary for the gasification reaction, and supplies pulverized coal to the combustion gas from the combustor section 116 for partial combustion, removing pulverized coal from volatile components (carbon monoxide, hydrogen, lower hydrocarbons, etc.). ) is decomposed and gasified to generate a product gas.

The syngas cooler 102 is provided inside the gasifier wall 111 and vertically above the burner 127 of the reductor section 118 . The syngas cooler 102 is a heat exchanger, and includes, for example, an evaporator (evaporator) 131, a superheater (superheater) 132, and a node in order from the vertically lower side of the gasification furnace wall 111 (the upstream side in the flow direction of the produced gas). An economizer 134 is located. These syngas coolers 102 cool the product gas by exchanging heat with the product gas produced in the reductor section 118 . Also, the evaporator (evaporator) 131, the superheater (superheater) 132, and the economizer (economizer) 134 are not limited to the numbers and arrangement positions shown in the drawing.

Here, the operation of the gasification furnace equipment described above will be described.
In the gasification furnace 101 of the gasification furnace equipment, nitrogen and pulverized coal are charged and ignited by the burner 127 of the reductor section 118, and pulverized coal and char are compressed by the burner 126 of the combustor section 116 as an oxidizing agent (air , oxygen) is introduced and ignited. Then, in the combustor part 116, high-temperature combustion gas is generated by combustion of pulverized coal and char. In combustor section 116 , molten slag is generated in high-temperature gas by combustion of pulverized coal and char. The high-temperature combustion gas generated in combustor section 116 rises to reductor section 118 through diffuser section 117 . In the reductor section 118, the high temperature required for the gasification reaction is maintained, the pulverized coal is mixed with the high-temperature combustion gas, and the pulverized coal is partially combusted in a high-temperature reducing atmosphere to perform the gasification reaction, resulting in the generated gas. is generated. The gasified product gas flows from the bottom to the top in the vertical direction, exchanges heat with the syngas cooler 102 , cools the product gas, and is discharged from the gas outlet 121 of the pressure vessel 110 .

Next, the pressure vessel 110 and built-in device section 100 according to this embodiment will be described in detail with reference to FIGS. 2 to 4. FIG. 3(a) and 4 indicate the central axis of the pressure vessel 110. As shown in FIG.
In this embodiment, the pressure vessel 110 is configured to be divisible into, for example, five divided pressure vessels in the height direction. Specifically, the pressure vessel 110 is configured to be divisible into a first pressure vessel 11 , a second pressure vessel 12 , a third pressure vessel 13 , a fourth pressure vessel 14 and a fifth pressure vessel 15 .
The first pressure vessel 11 is the uppermost split pressure vessel in the state where the pressure vessel 110 is installed in the gasification furnace 101, and is formed, for example, in a cylindrical shape with a dome-shaped top closed. ing. The second pressure vessel 12, the third pressure vessel 13, and the fourth pressure vessel 14 are arranged in order from the upper side, and are formed, for example, in a cylindrical shape. The fifth pressure vessel 15 is the lowermost divided pressure vessel when the pressure vessel 110 is installed in the gasification furnace 101. The fifth pressure vessel 15 is, for example, cylindrical and has a closed dome-shaped bottom. ing. 4 and 7, the fifth pressure vessel 15 has a bottomed cylindrical skirt portion 22 extending downward from the outer peripheral surface. A bottom portion 22a of the skirt portion 22 is formed with a plurality of bolt holes through which bolts 27 extending upward from the ground are inserted.

The split pressure vessel is configured to be connectable with an adjacent split pressure vessel. Specifically, as shown in FIGS. 3A and 3B, the lower end of the first pressure vessel 11, the upper and lower ends of the second pressure vessel 12, the third pressure vessel 13 and the fourth pressure vessel 14, A flange portion (a first flange portion, a second flange portion) 16 is formed on the upper end of the fifth pressure vessel 15 and protrudes radially outward from the entire circumferential direction of the outer peripheral surface. In each flange portion 16, bolt holes (first bolt hole, second bolt hole) 17 penetrating vertically are formed at a plurality of locations (about several tens to 100 locations in the present embodiment) at substantially equal intervals in the circumferential direction. there is Each bolt hole 17 is formed at a position communicating with the bolt hole 17 formed in the adjacent split pressure vessel. A divided pressure vessel and an adjacent divided pressure vessel can be connected by a bolt 18 passing through two communicating bolt holes 17 and a nut 19 fitted to the upper end and lower end of the bolt 18 .
A plurality of nozzles 20 protruding radially outward are provided on the outer peripheral surface of the pressure vessel 110 (one example of which is shown in FIG. 3(b)).

The bolt 18 inserted through the bolt hole 17 is formed to have a vertical length greater than the vertical length of the two communicating bolt holes 17 . Also, the outer diameter of the bolt 18 is slightly smaller than the diameter of the bolt hole 17 . As shown in FIG. 3(c), a lifting jig 21 is provided at one end of the bolt 18 in the longitudinal direction. The lifting jig 21 has a fixing portion 21a for fixing the bolt 18 and the lifting jig 21 so as to be inserted into one end face of the bolt 18, and an annular ring portion 21b fixed to the tip of the fixing portion 21a. . The ring portion 21b is fixed to the fixing portion 21a so that the central axis direction of the opening and the extending direction of the bolt 18 are orthogonal.
The bolts 18 are long, for example, having a length of more than 1 m, weighing about 100 kg or more, and are large in number (in this embodiment, about several tens to 100 bolts per flange portion 16). For this reason, as will be described later, the first pressure vessel 11 and the second pressure vessel 12 are lifted by a crane or the like shown in FIG. and are connected.

In this embodiment, the built-in device section 100 is configured to be divisible into, for example, four divided built-in device sections in the height direction. Specifically, the built-in device section 100 can be divided into a first built-in device section 31 , a second built-in device section 32 , a third built-in device section 33 and a fourth built-in device section 34 . The first built-in device section 31, the second built-in device section 32, the third built-in device section 33, and the fourth built-in device section 34 are arranged in order from the top.
Each divided built-in equipment section has, for example, a cylindrical gasification furnace wall 111 (see FIG. 1) composed of a furnace wall tube and a wall portion. Further, in the present embodiment, the syngas cooler 102 is accommodated inside the gasification furnace wall 111 of the first built-in device section 31 and the second built-in device section 32 positioned above. In addition, the third built-in device section 33 and the fourth built-in device section 34 positioned below have a combustor section 116 , a dephaser section 117 and a reductor section 118 formed inside the gasification furnace wall 111 .

The gasification furnace 101 and the pressure vessel 110 constituting the gasification furnace 101 of this embodiment are supported by a frame 36 at the installation site. As shown in FIG. 5, the frame 36 includes a plurality of vertically extending pillars 37 and horizontal beams that interconnect the plurality of pillars 37 and extend vertically in multiple stages. a portion 38; The frame 36 has a first frame portion 36a arranged to surround the pressure vessel 110, and a second frame portion 36b and a third frame portion 36c arranged adjacent to the first frame portion 36a. The total vertical length of the first frame portion 36a, the second frame portion 36b, and the third frame portion 36c is longer than the vertical length of the pressure vessel 110, and in the state where the pressure vessel 110 is installed, The upper end of the first frame portion 36 a is located higher than the upper end of the pressure vessel 110 . The second frame portion 36b is set lower in height (vertical length) than the first frame portion 36a. Further, the height of the third frame portion 36c is set lower than that of the second frame portion 36b.

The frame 36 is provided with a main jack device 39 for lifting when connecting the divided pressure vessel and the divided built-in equipment section, and an intermediate jack device 40 used when raising the divided pressure vessel and the divided built-in equipment section. ing.
A plurality of main jack devices 39 (for example, six in this embodiment) are provided on the beam portion 38 provided at the upper end of the first frame portion 36a. The six main jack devices 39 are arranged, for example, in a circular shape and are arranged at regular intervals.
The intermediate jack device 40 has a first lifting portion 41 provided on the beam portion 38 of the third frame portion 36c, and a second lifting portion 42 provided on the beam portion 38 on the lower end side of the first frame portion 36a. The second lifting portion 42 is arranged above the first lifting portion 41 .

The main jack device 39 and the intermediate jack device 40 may be controlled by a controller (not shown). Also, if it is possible to operate while grasping the height position at the time of lifting, it may be operated by the assembly worker.
The control unit includes, for example, a CPU (Central Processing Unit), a RAM (Random Access Memory), a ROM (Read Only Memory), a computer-readable storage medium, and the like. A series of processes for realizing various functions is stored in a storage medium or the like in the form of a program, for example, and the CPU reads out this program to a RAM or the like, and executes information processing and arithmetic processing. As a result, various functions are realized. The program may be pre-installed in a ROM or other storage medium, provided in a state stored in a computer-readable storage medium, or delivered via wired or wireless communication means. etc. may be applied. Computer-readable storage media include magnetic disks, magneto-optical disks, CD-ROMs, DVD-ROMs, semiconductor memories, and the like.

Next, the assembly method (manufacturing method) of the gasification furnace according to this embodiment will be described with reference to FIG. In the following description, "upper" and "lower" refer to the vertically upper side after the assembly is completed, and "lower" refers to the vertically lower side.
In this embodiment, basically, the divided pressure vessel and the divided built-in equipment are separately transported from the factory or the like to the installation site (gasification furnace installation location). 14 and the fourth built-in device section 34 are transported in a fixed state (that is, in a unitized state) at a factory or the like before being transported to the installation site (see FIG. 2). When transporting, each divided pressure vessel and each divided built-in equipment part should be transported horizontally so that the longitudinal axis is almost horizontal so as to avoid height restrictions during transportation. be done. Since the divided built-in equipment part includes easily damaged members such as furnace wall pipes, the divided built-in equipment part is transported in a state where the outer periphery is covered with a transport frame 44 that protects the divided built-in equipment part. Since the fourth built-in device section 34 is accommodated inside the fourth pressure vessel 14 , it does not need to be covered with the transportation frame 44 .
In addition, since the slag hopper 122 is provided in the lower part of the gasification furnace 101, the gasification furnace 101 is installed in an excavated portion 46 (see FIG. 4, etc.) that is dug down from the ground surface 45 by about 1.5 m to 2 m. . Therefore, the assembling work of the gasification furnace 101 is not hindered by installing the foundation frame 47 in the dug-down portion 46 until the middle of the assembling work. The timing for removing the base frame 47 will be described later.

As shown in FIG. 5(a), the first pressure vessel 11, which has been transported to the installation site, is placed horizontally, and the internal positions of the third frame portion 36c and the first frame portion 36a are moved by a dolly 48 having a transportation platform. (hereinafter referred to as "first position") (first carrying-in step).
In the first pressure vessel 11 that has been brought in, the wires of the intermediate jack device 40 are attached to a total of four locations, for example, two locations on the upper side (the dome-shaped side) and two locations on the lower side. Specifically, the wires of the second lifting portion 42 are attached to two locations on the upper side, and the wires of the first lifting portion 41 are attached to two locations on the lower side. After the wires are attached, the intermediate jacking device 40 is activated to lift the first pressure vessel 11 so that its longitudinal axis is horizontal. When the first pressure vessel 11 is lifted, the dolly 48 is withdrawn.

Next, as shown in FIGS. 5(b) and 5(c), while erecting the first pressure vessel 11 (that is, arranging so that the central axis of the longitudinal direction is in the vertical direction), It is moved to an internal position (hereinafter referred to as a “second position”) of the first frame portion 36a to be lifted by the main jack device 39 (first erecting step). Here, the second position is the position where the gasification furnace 101 is installed. Specifically, by loosening the wire of the first lifting portion 41 attached to the lower side of the first pressure vessel 11 and contracting the wire of the second lifting portion 42 attached to the upper side of the first pressure vessel 11, , the first pressure vessel 11 is rotated and erected so that the upper side faces upward, and the erected first pressure vessel 11 is moved to the second position.

After the first pressure vessel 11 has moved to the second position, the wire of the intermediate jack device 40 is removed after the wire of the main jack device 39 is attached. The first pressure vessel 11 to which the wires of the main jack device 39 are attached is vertically lifted up to a predetermined height h with respect to the height of the first frame portion 36a by the main jack device 39 so that the next assembly process can be performed. It is lifted to (first lifting step).

Next, as shown in FIG. 5(d), the first built-in device is carried into the first position while being placed horizontally with its longitudinal axis substantially horizontal. For the transport frame 44 that covers the first built-in device section 31 that has been carried in, the wires of the intermediate jack device 40 are attached to a total of four positions, two on the upper side and two on the lower side. be done. Specifically, the wires of the second lifting portion 42 are attached to two locations on the upper side, and the wires of the first lifting portion 41 are attached to two locations on the lower side. After the wires are attached, the intermediate jack device 40 is operated to lift the first built-in device section 31 so that its longitudinal axis is horizontal. When the first built-in device section 31 is lifted, the dolly 48 is withdrawn.

Next, as shown in FIGS. 5(e) and 5(f), while erecting the first built-in device section 31 (that is, arranging so that the central axis in the longitudinal direction is vertical), It is moved to the second position where it is lifted by the main jack device 39 (first built-in component erecting process). Specifically, the wire of the first lifting portion 41 attached to the lower side of the first built-in device portion 31 is loosened, and the wire of the second lifting portion 42 attached to the upper side of the first built-in device portion 31 is contracted. As a result, the first built-in device section 31 is moved to the second position while the first built-in device section 31 is rotated and raised so that the upper side faces up. The wire of the intermediate jack device 40 is removed from the first pressure vessel 11 that has moved to the second position. Also, the transportation frame 44 is dismantled, and the transportation frame is removed from the first built-in device section 31 .

Next, as shown in FIGS. 5(g) and 5(h), the first pressure vessel 11, which has been lifted by the main jack device 39, is lowered, and the first built-in equipment section is placed inside the first pressure vessel 11. Accommodates 31. Next, the first pressure vessel 11 and the first built-in device section 31 are temporarily fixed to form the first unit 51 (first temporary fixing step). Specifically, as shown in FIG. 6, for example, the pressure vessel protruding portion 23 protruding radially inward from the inner peripheral surface of the first pressure vessel 11 is radially moved from the outer peripheral surface of the first built-in device portion 31 . The built-in device protruding portion 24 protruding outward is temporarily fixed by engaging with a small jack 25 or the like. Although FIG. 6 shows the temporarily fixed portion between the second pressure vessel 12 and the second built-in equipment section 32, the temporary fixation between the first pressure vessel 11 and the first built-in equipment section 31 is substantially the same. form. 6 indicates the central axis of the pressure vessel 110. As shown in FIG.
The temporarily fixed first pressure vessel 11 and the first built-in device section 31 (that is, the first unit 51) are lifted up to a predetermined height h (see FIG. 5(d)) by the main jack device 39 (the second lifting process). In this embodiment, the predetermined height h is set to approximately half the height of the first frame portion 36a.

Next, similarly to the case of the first pressure vessel 11, the second pressure vessel 12 is carried into the first position (second carrying-in step), erected, and moved to the second position (second erection step). Since the method for carrying in the second pressure vessel 12 is the same as the method for carrying in the first pressure vessel 11, the description thereof is omitted.
When the second pressure vessel 12 moves to the second position, the first unit 51 lifted by the main jack device 39 is lowered to connect the first pressure vessel 11 and the second pressure vessel 12 (connecting step).
Specifically, as shown in FIG. 3B, the tip of a wire suspended from a crane or the like is engaged with the ring portion 21b of the lifting jig 21 provided on the bolt 18, and the bolt 18 is lifted by the crane. is lifted up and the bolt 18 is inserted from above the bolt hole 17 . In addition, when it is difficult to insert the bolt 18 from above the bolt hole 17 because the nozzle 20 or the like is installed in the pressure vessel 11, the wire is inserted into the nut 19 and the bolt hole 17 which are fastened to the bolt 18 above the flange portion 16. Insert from above. Then, the ring portion 21 b of the lifting jig 21 provided at the upper end portion of the bolt 18 is engaged with the tip of the wire passing through the nut 19 and the bolt hole 17 . The bolt 18 may be inserted through the bolt hole 17 from below by lifting the bolt 18 with a crane.
After that, the first pressure vessel 11 and the second pressure vessel 12 are connected by fastening a nut 19 to the bolt 18 inserted through the bolt hole 17 .

Next, the connected first unit 51 and second pressure vessel 12 are lifted to a predetermined height h by the main jack device 39 (third lifting step).
Next, similarly to the first built-in device section 31, the second built-in device section 32 is brought in, erected, and moved to the second position (second built-in component erection process). The method for carrying in the second built-in device section 32 is the same as the method for carrying in the first built-in device section 31, so the description thereof will be omitted.

Next, the connecting body of the first unit 51 and the second pressure vessel 12 that has been lifted by the main jack device 39 is lowered, and the second built-in device section 32 is accommodated inside the second pressure vessel 12 . Next, the second pressure vessel 12 and the second built-in device section 32 are temporarily fixed to form the second unit 52 (second temporary fixing step). Since the method for temporarily fixing the second pressure vessel 12 and the second built-in device section 32 is substantially the same as the method for temporarily fixing the first pressure vessel 11 and the first built-in device section 31, the description thereof will be omitted. In addition, in the connecting portion of the first unit 51 and the second pressure vessel 12, the first built-in equipment part 31 and the second built-in equipment part 32 are connected to the lower end of the first built-in equipment part 31 and the upper end of the second built-in equipment part 32. are spaced apart by at least a predetermined distance L (for example, about 10 mm to 20 mm) and temporarily fixed (see FIG. 6). This prevents the lower end of the first internal device section 31 and the upper end of the second internal device section 32 from interfering with each other when connecting the first unit 51 and the second pressure vessel 12 .
When the second pressure vessel 12 and the second built-in device section 32 are temporarily fixed, the connected body of the first unit 51 and the second unit 52 is lifted up to a predetermined height h by the main jack device 39 .

The third pressure vessel 13 is then connected to the connected first unit 51 and second unit 52 in a manner similar to the second pressure vessel 12 . Then, the third built-in equipment section 33 is temporarily fixed inside the third pressure vessel 13 in the same manner as the second built-in equipment section 32 (that is, constitutes the third unit 53). The upper end of the third built-in device section 33 is separated from the lower end of the second built-in device section 32 by a predetermined distance L or more, and the lower end of the third built-in device section 33 is also separated from the upper end of a fourth built-in component described later by a predetermined distance. It is temporarily fixed so as to be spaced apart by L or more.

Next, the fourth pressure vessel 14 is connected. As described above, the inside of the fourth pressure vessel 14 is in a state in which the fourth built-in device section 34 is fixed in the factory or the like before being transported to the installation site. , while being erected, move to the second position and are connected. In addition, since the method of erecting and the like is the same as that of the first pressure vessel 11 and the like, the explanation thereof is omitted.

Next, as shown in FIGS. 7(a) and 7(b), the fifth pressure vessel 15 is loaded and moved to the second position while being erected in the same manner as the other divided pressure vessels. The fifth pressure vessel 15 moved to the second position is maintained in a state of being lifted by the intermediate jack device 40 .
With the fifth pressure vessel 15 being lifted, the foundation frame 47 is removed from the dug portion 46 . The base frame 47 will be described later. After removing the base frame 47, a plurality of horizontal level adjusting plates 56 are installed on the bottom surface 46a of the dug-down portion 46 to ensure a horizontal level.

After that, the fifth pressure vessel 15 is lowered by the intermediate jack device 40 and the skirt portion 22 of the fifth pressure vessel 15 is placed on the horizontal level adjusting plate 56 . Next, as shown in FIG. 7(d), the levelness C1 (see FIG. 7(d)) of the upper surface of the flange portion 16 of the fifth pressure vessel 15 is checked with a Y level meter, a laser measuring instrument, or the like. do. At this time, if the upper surface of the flange portion 16 is not horizontal, a liner 57 is inserted between the horizontal level adjusting plate 56 and the skirt portion 22 to adjust the horizontality. By securing horizontality on the upper surface of the flange portion 16 that can be adjusted with a horizontal level adjusting plate 56 or the like, the longitudinal center axis of the long gasifier 101 of several tens of meters is installed with an inclination with respect to the vertical direction. restrain from being
When the horizontality of the upper surface of the flange portion 16 is ensured, the fifth pressure vessel 15 is installed. Specifically, as shown in FIG. 4, a plurality of bolts 27 extending upward from the floor surface of the dug portion are inserted through bolt holes formed in the bottom portion 22a of the skirt portion 22, and each bolt 27 is , to prevent loosening, for example, two nuts 28 are fastened so as to overlap each other. Then, concrete 58 is poured into the dug portion 46 to fix the fifth pressure vessel 15 .

Next, the connecting body of the fourth unit 54 is lowered from the connected first unit 51 lifted by the main jack device 39 to connect the fourth pressure vessel 14 and the fifth pressure vessel 15 . The method for connecting the fourth pressure vessel 14 and the fifth pressure vessel 15 is the same as the method for connecting the other divided pressure vessels, and thus the description thereof is omitted.

Next, the temporarily fixed divided built-in device portions are connected to each other (built-in component connecting step). Each divided built-in device section (first built-in device section 31 to third built-in device section 33) is temporarily fixed to each corresponding divided pressure vessel while being spaced apart from the adjacent divided built-in device section by a predetermined distance L or more. It is Also, the fourth built-in device section 34 is fixed to the fourth pressure vessel 14 . More specifically, when the fourth built-in device section 34 and the fourth pressure vessel 14 are fixed in a factory or the like before being transported to the installation site, they are arranged so as to serve as a reference for relative positions during operation of the gasification furnace 101. is fixed.
If the fourth built-in device section 34 can secure a proper relative positional relationship with the fourth pressure vessel 14 at the installation site, and the other built-in devices can also secure a proper positional relationship with other pressure vessels, the factory Instead, the fourth built-in device section 34 and the fourth pressure vessel 14 may be separately transported like other content device sections and temporarily fixed at the second position at the installation site.
The split built-in device units are connected to each other based on the fourth built-in device unit 34 . That is, first, the small jack 25 that temporarily fixes the third built-in equipment section 33 is adjusted, the third built-in equipment section 33 is lowered while considering the predetermined distance L, and the fourth built-in equipment section 34 is The third built-in device section 33 is moved to an appropriate position, such as by bringing the joint portion or contact portion of the third built-in device section 33 into contact. In this state, the portions of the fourth built-in device section 34 and the third built-in device section 33 that need to be joined are connected. The connection between the divided built-in equipment units is, for example, the work of welding and fixing the furnace wall tubes of the built-in equipment units so that they communicate with each other.
Next, the second built-in device section 32 is connected and fixed to the third built-in device section 33 . The method of connecting the third built-in device section 33 and the second built-in device section 32 is substantially the same as the method of connecting the above-described fourth built-in device section 34 and the third built-in device section 33, so the description thereof will be omitted. In addition, since the third built-in device section 33 is in a state of being lowered in consideration of the predetermined distance L, the second built-in device section 32 considers twice the predetermined distance L to lower the third built-in device section 33 . It will be in a proper position with the device section 33 and will come into contact with the contact portion.
Next, the first built-in device section 31 is connected and fixed to the second built-in device section 32 . The method of connecting the second built-in device section 32 and the first built-in device section 31 is substantially the same as the method of connecting the above-described fourth built-in device section 34 and the third built-in device section 33, so the description thereof will be omitted. In addition, since the second built-in device section 32 is in a state of being lowered by considering twice the predetermined distance L, the first built-in device section 31 is lowered by considering a distance three times the predetermined distance L. , and the second built-in device portion 32, and come into contact with each other at the contact portion.

Thus, the gasification furnace 101 according to this embodiment is assembled. Note that the main jack device 39 and the intermediate jack device 40 may be removed from the frame 36 after the gasification furnace 101 is assembled. Further, in the assembly method described above, the intermediate jack device 40 and the main jack device 39 may be controlled by the controller.

According to this embodiment, the following effects are obtained.
In this embodiment, each divided pressure vessel and each divided built-in device section are transported horizontally so that their longitudinal axes are substantially horizontal, so they can be easily transported even over long distances.

Further, for example, when assembling divided gasifier components, if they are assembled so as to be stacked one on top of the other from the bottom, the gasifier components must be lifted vertically upward and moved horizontally. It will be repeated while ensuring accuracy from the beginning.
In the present embodiment, the divided gasifier components (the pressure vessel 110 and the built-in equipment section 100 that are divided, and those that are connected) are vertically lifted (or lowered) by the main jack device 39. The gasification furnace 101 can be assembled only by repeating the above. In this manner, the gasification furnace 101 can be assembled by connecting the lifted gasification furnace components without moving them in the horizontal direction. , the assembly of the gasification furnace 101 can be simplified. Further, since it is sufficient if the main jack device 39 can lift only in the vertical direction, the main jack device 39 and the frame 36 that supports the main jack device 39 can be made relatively simple.

Further, for example, when assembling divided gasification furnace components, if they are assembled so as to be stacked one on top of the other from the bottom, the connecting points will gradually become higher, and the work place will be different each time.
In the present embodiment, the gasifier components to be connected are always positioned at the second position, so that there is no great difference in the location of the connecting work. In this manner, since the gasification furnace 101 can be manufactured by repeating the same operations, the manufacturing process of the gasification furnace 101 can be reliably advanced.

Further, in the present embodiment, the intermediate jack device 40 can move the divided gasification furnace components horizontally placed at the first position to the second position and erect them. Therefore, the moving step of moving the gasifier component and the raising step of raising the gasifying furnace component can be performed at the same time. Processes can be reduced.

Further, in this embodiment, the divided pressure vessel and the divided built-in device section are erected separately. This makes it possible to reduce the weight of the gasification furnace components that are erected at one time. Therefore, the erecting work can be facilitated. In addition, the intermediate jack device 40 used for erecting and the frame 36 for supporting the intermediate jack device 40 can be simplified.
In addition, when the divided pressure vessel and the divided built-in device are erected after being temporarily fixed, it is necessary to have a strong structure so that the temporarily fixed portion can withstand the erecting work. In the present embodiment, the divided pressure vessel and the divided built-in equipment section are temporarily fixed after being erected. configuration can be simplified.

Further, in the present embodiment, each divided built-in device section is temporarily fixed to the divided pressure vessel so that it is spaced apart from each other by a predetermined distance L or more. As a result, when the divided pressure vessel and the adjacent divided pressure vessel are connected, the divided built-in device sections do not interfere with each other. Therefore, it is possible to prevent damage between the divided built-in device units. In addition, since the process of rearranging the divided built-in parts in order to eliminate mutual interference between the divided built-in equipment parts can be reliably omitted, the manufacturing process of the gasification furnace 101 can be shortened.

Moreover, in the flange portion 16 that connects the divided pressure vessels, the bolt 18 may be lifted by a crane and inserted from below the bolt hole 17. However, as shown in FIG. 3B, the nozzle 20 and the like are provided, and even if the work space for inserting the bolt hole 17 from above cannot be secured, the bolt 18 can be inserted through the bolt hole 17. Therefore, it is possible to suitably perform the work of connecting the divided pressure vessels.

In addition, by ensuring the horizontality of the upper surface of the flange portion 16 of the fifth pressure vessel 15, when the divided pressure vessels stacked on the upper side are connected, the longitudinal central axis of the long gasification furnace 101 can be aligned. It can be installed along the vertical direction, and can be prevented from being tilted from the vertical direction.

[Second embodiment]
A second embodiment of the present invention will be described below with reference to FIGS. 8 and 9. FIG.
This embodiment is different from the first embodiment in that all the divided built-in device units are temporarily fixed to the corresponding divided pressure vessels in a factory or the like before transportation to the installation site. Other configurations and methods are the same as those of the first embodiment, so description thereof will be omitted.

In this embodiment, in the factory, as shown in FIG. 9, all of the divided built-in equipment units (the first built-in equipment unit 31 to the fourth built-in equipment unit 34) are temporarily fixed to the corresponding divided pressure vessels. A fourth unit 54 is formed from the first unit 51 . In this embodiment, unlike the first embodiment, when connecting the divided built-in device sections, alignment may be performed using the first built-in device section 31 as a reference. At this time, the first built-in device section 31 and the first pressure vessel 11 are temporarily fixed so as to be in relative positions when the gasification furnace 101 is in operation when they are temporarily fixed in the factory. The configuration in which each built-in device section is temporarily fixed to an adjacent built-in device section with a predetermined distance L or more is the same as in the first embodiment.
The first unit 51 to the fourth unit 54 are transported to the installation site horizontally so that the longitudinal axis is substantially horizontal, and carried into the first position.

As shown in FIG. 8, the first unit 51 to the fourth unit 54 carried in to the first position are erected by the intermediate jack device 40 and the main jack is carried out in substantially the same manner as the divided pressure vessel of the first embodiment. Since the hoisting work and the connecting work are performed by the device 39, the description of the work similar to that of the first embodiment is omitted.
As described above, in this embodiment, unlike the first embodiment, alignment may be performed using the first built-in device section 31 as a reference when connecting divided built-in device sections.
First, the temporary fixation of the second built-in equipment section 32 is released, and the second built-in equipment section 32 is raised by the small jack 25 considering the predetermined distance L, and then the first built-in equipment section 31 and the second built-in equipment section are lifted. 32 are connected at the necessary positions. Next, the temporary fixation of the third built-in device section 33 is released, and the small jack 25 is used to raise the third built-in device section 33 . At this time, since the second built-in device section 32 is in a state of being raised in consideration of the predetermined distance L, the third built-in device section 33 is raised in consideration of a distance twice the predetermined distance L, so that the second built-in device section 32 It makes contact with the built-in device section 32 at a necessary position. Next, the temporary fixation of the fourth built-in device section 34 is released, and the fourth built-in device section 34 is raised by the small jack 25 . At this time, since the third built-in device section 33 is in a state of being lifted by considering twice the predetermined distance L, the fourth built-in device section 34 should be lifted by considering a distance three times the predetermined distance L. , it contacts with the third built-in device section 33 .

In the present embodiment, transportation, carrying in, erecting, lifting by the main jack device 39, etc. are performed in a state in which each divided built-in equipment section and each divided pressure vessel are temporarily fixed. Divided pressure vessels are temporarily fixed using temporary materials. Fixing with temporary materials is carried out in a manner in which temporary fixation is not released even in a horizontal position, a standing position, or a vertical position, taking into consideration operations such as transportation, carry-in, erection, and lifting.

According to this embodiment, the following effects are obtained.
In this embodiment, erecting work, lifting work, and connecting work are performed in a state in which the divided built-in device section is temporarily fixed inside the divided pressure vessel. As a result, erecting work, lifting work, and the like can be performed on the divided built-in device section without providing a transportation frame.
In addition, since the divided built-in equipment section and the divided pressure vessel are temporarily fixed and unitized at a factory or the like, the process of unitizing at the assembly site where the gasification furnace 101 is installed can be omitted. Therefore, the workability of assembling the gasification furnace 101 can be improved.

[Third Embodiment]
A third embodiment of the present invention will be described below with reference to FIGS. 10 to 12. FIG.
In the present embodiment, each unit (structure in which the divided built-in equipment section is temporarily fixed inside the corresponding divided pressure vessel) is erected at the first position using the erecting jig 60, and each unit is erected at the first position. This embodiment differs from the second embodiment in that the unit is moved to the second position by a carriage 61 . Other points are the same as in the second embodiment, so description thereof will be omitted.

As shown in FIG. 10( a ), the first unit 51 is brought into the first position by the dolly 48 . As shown in FIG. 10(b), the first unit 51 carried in to the first position is lifted in a laterally placed state by a raising jack 62 provided on the third frame portion 36c, and leaves the dolly 48. do. As shown in FIG. 10( c ), the first unit 51 is raised using the raising jig 60 with respect to the first unit 51 being lifted by the raising jack 62 . Then, as shown in FIG. 10(d), the carriage 61 is used to move the first unit 51 from the first position to the second position.

The erecting work and the moving work will be described in more detail. As shown in FIG. 12, the outer peripheral surface of the divided pressure vessel constituting the first unit 51 is provided with, for example, four cylindrical rotating shafts 63 protruding radially outward. Two of the four rotating shafts 63 are provided at intervals of 180 degrees in the circumferential direction so as to be symmetrical with respect to the longitudinal axis of the first unit 51 on the upper side of the divided pressure vessel. The remaining two rotating shafts 63 are provided on the lower side of the divided pressure vessel at intervals of 180 degrees in the circumferential direction. All the rotating shafts 63 are arranged so as to be at the same height position when the divided pressure vessels are placed horizontally. The first unit 51 is lifted by attaching wires of the raising jacks 62 to the four rotating shafts 63 .
In addition, wheels are provided below the erecting jig 60 to enable the erecting jig 60 to move in the horizontal direction. In addition, on the upper part of the erecting jig 60, a rotation bearing portion 64 is formed with a surface corresponding to the outer peripheral surface of the rotating shaft 63 so that the divided pressure vessel can be supported by the two rotating shafts 63.

In FIG. 11, a more detailed description is given so as to correspond to FIGS. 10(b) to 10(d). As shown in FIGS. 11A and 11B, two rotary shafts 63 arranged on the upper side of the erecting jig 60 are mounted on the rotary bearing portion 64, and the rotating shaft 63 arranged on the upper side is mounted. The first unit 51 is rotated and erected by horizontally moving the erecting jig 60 toward the second position while lifting the wire attached to the shaft 63 . After that, the wire attached to the rotating shaft 63 arranged on the lower side is removed.
Then, as shown in FIGS. 11(c) and 11(d), the erected first unit 51 is suspended by the erecting jack 62 by the wire attached to the rotating shaft 63 arranged on the upper side. The erecting jig 60 is withdrawn, the carriage 61 is arranged below the first unit 51 , and the first unit 51 is placed on the carriage 61 . After that, by moving the carriage 61 to the second position side, the first unit 51 moves from the first position to the second position (first moving step).

The first unit 51 moved to the second position is lifted upward by the same method as in the second embodiment, as shown in FIG. 10(e). After that, the second unit 52 moves to the second position in the same manner as the first unit 51 (second moving step). When the second unit 52 moves to the second position, as shown in FIG. 10(f), the first unit 51 descends to form a connected body in which the first unit 51 and the second unit 52 are connected, and then moves upward again. to be hoisted. In this embodiment, the operation of connecting each unit is repeated to assemble the gasification furnace 101 .

According to this embodiment, the following effects are obtained.
In this embodiment, the first unit 51 and the second unit 52 are raised using the raising jig 60 and then moved to the second position. In this way, by separating the erecting work and the moving work into separate processes, each unit can be reliably erected and moved. In addition, since each unit is not horizontally moved while being suspended by the erecting jacks 62, the erecting jacks 62 can have a simple structure.

It should be noted that the present invention is not limited to the inventions according to the above-described embodiments, and can be appropriately modified without departing from the scope of the invention.

For example, in the third embodiment, an example was described in which the erecting jig was used for the unit in which the divided built-in equipment part was temporarily fixed inside the corresponding divided pressure vessel. The parts may be erected separately using a erecting jig.

Also, in each of the above embodiments, the pressure vessel is divided into five divided pressure vessels, but the number of divisions of the pressure vessel is not limited to five. It may be divided into four or less, or may be divided into six or more.
It is preferable to optimize the number of divisions of the pressure vessel in consideration of the following points.
When the number of divisions is increased, the number and thickness of the flange portions 16 increase, the weight and height of the entire pressure vessel increase, and the installation process time also increases. On the other hand, when the number of divisions of the pressure vessel is reduced, the weight of each divided pressure vessel increases, and the hanging load on the main jack device 39 and the intermediate jack device 40 increases. 40 and the steel frame of frame 36 are enlarged.
In this embodiment, for example, the pressure vessel is divided into five, and the weight of each divided pressure vessel and the weight of the entire pressure vessel are optimized.
Also, the number of divisions of the built-in device section is not limited to the example of the above embodiment, similarly to the pressure vessel. It may be divided into three or less, or may be divided into five or more.

11 First pressure vessel 12 Second pressure vessel 13 Third pressure vessel 14 Fourth pressure vessel 15 Fifth pressure vessel 16 Flange portion 17 Bolt hole 18 Bolt 19 Nut 20 Nozzle 21 Lifting jig 22 Skirt portion 31 First built-in device part (internal parts)
32 Second built-in device section (built-in parts)
33 Third built-in equipment section (built-in parts)
34 4th built-in equipment section (built-in parts)
36 Frame 39 Main jack device 40 Intermediate jack device 41 First lifting section 42 Second lifting section 44 Transportation frame 46 Digging section 47 Foundation frame 51 First unit 52 Second unit 53 Third unit 54 Fourth unit 60 Raising jig 61 trolley

Claims (9)

A method for manufacturing a gasification furnace including a first pressure vessel and a second pressure vessel which are part of the pressure vessel of the gasification furnace divided into a plurality in the height direction,
The gasification furnace comprises a first built-in part housed inside the first pressure vessel and a second built-in part housed inside the second pressure vessel,
a first raising step of raising the first pressure vessel;
a first lifting step of lifting the first pressure vessel erected in the first erecting step vertically upward at a second position where the gasification furnace is installed;
a second raising step of raising the second pressure vessel;
The first pressure vessel lifted in the first lifting step is lowered vertically downward, and the lower end of the first pressure vessel and the upper end of the second pressure vessel raised in the second raising step are connected. a connecting step;
a first loading step of loading the first pressure vessel to a first position;
a second loading step of loading the second pressure vessel into the first position;
In the first raising step, the first pressure vessel carried in in the first carrying-in step is raised at the first position using an intermediate jack device,
In the second raising step, the second pressure vessel carried in in the second carrying-in step is raised at the first position using the intermediate jack device,
The intermediate jack device includes a first lifting section for lifting from the vertically upper side of the first position and a second lifting section for lifting from the vertically upper side of the second position, the first pressure vessel and A method of manufacturing a gasification furnace, wherein the second pressure vessel is moved from the first position to the second position and erected . A method for manufacturing a gasification furnace including a first pressure vessel and a second pressure vessel which are part of the pressure vessel of the gasification furnace divided into a plurality in the height direction,
The gasification furnace comprises a first built-in part housed inside the first pressure vessel and a second built-in part housed inside the second pressure vessel,
a first raising step of raising the first pressure vessel;
a first lifting step of lifting the first pressure vessel erected in the first erecting step vertically upward at a second position where the gasification furnace is installed;
a second raising step of raising the second pressure vessel;
The first pressure vessel lifted in the first lifting step is lowered vertically downward, and the lower end of the first pressure vessel and the upper end of the second pressure vessel raised in the second raising step are connected. a connecting step;
a first built-in component raising step for raising the first built-in component to the second position after the first lifting step at the second position;
a first temporary fixing step of temporarily fixing the first internal component inside the first pressure vessel by vertically lowering the first pressure vessel after the first internal component erecting process;
a second lifting step of lifting vertically upward the first pressure vessel to which the first internal component is temporarily fixed in the first temporary fixing step;
a third lifting step of lifting the first pressure vessel and the second pressure vessel connected in the connecting step;
a second built-in component raising step for raising the second built-in component after the third lifting step;
a second temporary fixing step of temporarily fixing the second internal component inside the second pressure vessel by vertically lowering the second pressure vessel after the second internal component erecting process;
and a built-in component connecting step of connecting the lower end of the first built-in component and the upper end of the second built-in component. A method for manufacturing a gasification furnace including a first pressure vessel and a second pressure vessel which are part of the pressure vessel of the gasification furnace divided into a plurality in the height direction,
The gasification furnace comprises a first built-in part housed inside the first pressure vessel and a second built-in part housed inside the second pressure vessel,
a first raising step of raising the first pressure vessel;
a first lifting step of lifting the first pressure vessel erected in the first erecting step vertically upward at a second position where the gasification furnace is installed;
a second raising step of raising the second pressure vessel;
The first pressure vessel lifted in the first lifting step is lowered vertically downward, and the lower end of the first pressure vessel and the upper end of the second pressure vessel raised in the second raising step are connected. a connecting step;
The first erecting step, the first lifting step, and the connecting step are performed in a state in which the first built-in component is temporarily fixed inside the first pressure vessel,
The second erecting step and the connecting step are performed while the second built-in component is temporarily fixed inside the second pressure vessel,
A method for manufacturing a gasification furnace, comprising an internal component connecting step of connecting the lower end of the first internal component and the upper end of the second internal component. The first built-in part and the second built-in part are arranged such that the lower end of the first built-in part and the upper end of the second built-in part are in a state where the first pressure vessel and the second pressure vessel are connected in the connecting step. 4. The method of manufacturing a gasification furnace according to claim 2 or 3, wherein the first pressure vessel and the second pressure vessel are temporarily fixed so as to separate from each other. A first flange portion protruding radially outward from the outer peripheral surface is formed at the lower end portion of the first pressure vessel,
A second flange portion projecting radially outward from the outer peripheral surface is formed at the upper end portion of the second pressure vessel,
A first bolt hole penetrating vertically is formed in the first flange portion,
A second bolt hole penetrating vertically is formed in the second flange portion,
In the connecting step, a bolt attached to the tip of a wire inserted through the first bolt hole and the second bolt hole is lifted, and the bolt is inserted from below into the first bolt hole and the second bolt hole. 5. The method for manufacturing a gasification furnace according to any one of claims 1 to 4, wherein the connection is made by inserting. A gasification furnace including a first pressure vessel and a second pressure vessel that are part of a pressure vessel divided into a plurality in the height direction,
a first built-in component housed inside the first pressure vessel;
a second built-in component housed inside the second pressure vessel;
a first temporary fixing portion that temporarily fixes the first built-in component to the first pressure vessel;
a second temporary fixing portion for temporarily fixing the second internal component to the second pressure vessel;
The first temporary fixing part and the second temporary fixing part are configured to separate the first built-in part and the second built-in part in a state where the first pressure vessel and the second pressure vessel are connected. (2) a gasification furnace capable of temporarily fixing said first built-in part and said second built-in part to said first pressure vessel and said second pressure vessel, respectively; 7. The gasification furnace according to claim 6, wherein the first temporary fixing part can move the temporarily fixed first built-in part so as to come into contact with the second built-in part. 8. The gasification furnace according to claim 6, wherein the second temporary fixing part can move the temporarily fixed second built-in part so as to come into contact with the first built-in part. A first flange portion protruding radially outward from the outer peripheral surface is formed at the lower end portion of the first pressure vessel,
A second flange portion protruding radially outward from the outer peripheral surface is formed at the upper end portion of the second pressure vessel,
A first bolt hole penetrating vertically is formed in the first flange portion,
A second bolt hole penetrating vertically is formed in the second flange portion,
9. The gasification furnace according to any one of claims 6 to 8, further comprising bolts that pass through the first bolt hole and the second bolt hole and connect the first pressure vessel and the second pressure vessel.

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