JP6990103B2 - How to maintain carbon dioxide capture equipment and carbon dioxide capture equipment - Google Patents

Description

An embodiment of the present invention relates to a carbon dioxide capture device and a maintenance method for the carbon dioxide capture facility.

In recent years, carbon capture and storage technology (CCS: Carbon Dioxide Capture and Storage), which captures and stores carbon dioxide (CO ₂ ), has been attracting attention as an effective countermeasure against the problem of global warming. Specifically, a carbon dioxide recovery facility that recovers carbon dioxide in process exhaust gas (exhaust gas to be treated) discharged from a thermal power plant, a steel mill, a cleaning factory, or the like with an absorption liquid is being studied.

As one of the carbon dioxide capture and storage technologies, a carbon dioxide capture facility using a chemical absorption method is known. Such a carbon dioxide capture facility includes an absorption tower and a regeneration tower. Of these, in the absorption tower, carbon dioxide contained in the process exhaust gas is absorbed by the absorption liquid containing an absorption liquid component such as amine and water. At this time, the process exhaust gas that has released carbon dioxide is discharged from the absorption tower. The absorption liquid that has absorbed carbon dioxide is supplied to the regeneration tower, and carbon dioxide is released from the absorption liquid in the regeneration tower. At this time, the released carbon dioxide is discharged together with the steam from the regeneration tower, and the carbon dioxide is separated and recovered. The absorbing liquid that has released carbon dioxide in the regeneration tower is returned to the absorption tower and absorbs carbon dioxide again in the absorption tower. In this way, the absorbing liquid circulates between the absorption tower and the regeneration tower, and the carbon dioxide contained in the process exhaust gas is continuously recovered.

Such carbon dioxide capture and storage technology has been developed into CCU (Carbon Dioxide Capture and Utilization) technology that utilizes the recovered carbon dioxide. The carbon dioxide capture equipment that embodies this CCU technology tends to be required to be downsized. For this reason, the equipment constituting the carbon dioxide recovery equipment may be densely packed to reduce the installation area of the carbon dioxide recovery equipment. However, in this case, it becomes difficult to access each device, and it may be difficult to ensure maintainability.

Japanese Unexamined Patent Publication No. 2004-323339

The present invention has been made in consideration of such a point, and provides a carbon dioxide recovery facility and a maintenance method for the carbon dioxide recovery facility, which can facilitate access to each device and ensure maintainability. The purpose is.

The carbon dioxide recovery equipment according to the embodiment is a plurality of devices including an absorption device, a regeneration device, a first pump device, a second pump device, a regeneration heat exchange device, and a cooling device for an absorbent liquid. It is equipped with. The absorption device is configured to absorb carbon dioxide contained in the exhaust gas to be treated by the absorbing liquid. The regenerating device is configured to release carbon dioxide from the absorbing liquid supplied from the absorbing device. The first pump device is configured to supply an absorbing liquid that has absorbed carbon dioxide from the absorbing device to the regenerating device. The second pump device is configured to supply the absorbing liquid in which carbon dioxide is released from the regenerating device to the absorbing device. The regenerative heat exchange device is configured to exchange heat between the absorbing liquid supplied from the absorbing device to the regenerating device and the absorbing liquid supplied from the regenerating device to the absorbing device. The absorbent liquid cooling device is configured to cool the absorbent liquid supplied from the regenerated heat exchange device to the absorbent device. Multiple devices are installed within the installation plane area. When projecting each device onto a vertical surface that includes an installation reference line set in the installation plane area, the devices do not overlap.

Further, the maintenance method of the carbon dioxide recovery equipment according to the embodiment includes the step of preparing the carbon dioxide recovery equipment described above and at least one of the plurality of devices from the outside of the installation plane area on one side with respect to the installation reference line. It has a process of accessing and performing maintenance.

According to the present invention, access to each device can be facilitated and maintainability can be ensured.

FIG. 1 is a system diagram showing the overall configuration of the carbon dioxide capture equipment according to the first embodiment. FIG. 2 is a schematic perspective view showing the arrangement of each device of the carbon dioxide capture equipment of FIG. FIG. 3 is a schematic plan view of FIG. FIG. 4 is a schematic plan view showing the arrangement of each device of the carbon dioxide capture equipment according to the second embodiment. FIG. 5 is a schematic plan view showing the arrangement of each device of the carbon dioxide capture equipment according to the third embodiment. FIG. 6 is a schematic plan view showing the arrangement of each device of the carbon dioxide capture equipment according to the fourth embodiment.

Hereinafter, the carbon dioxide recovery equipment and the maintenance method of the carbon dioxide recovery equipment according to the embodiment of the present invention will be described with reference to the drawings.

(First Embodiment)
First, the maintenance method of the carbon dioxide recovery equipment and the carbon dioxide recovery equipment in the first embodiment will be described with reference to FIGS. 1 to 3.

The carbon dioxide capture equipment 1 includes a plurality of devices. In the present embodiment, the plurality of devices include an absorption device, a regeneration device, a regeneration heat exchange device, a first pump device, a second pump device, an absorption liquid cooling device, a gas cooling device, and a gas-liquid separation device. Has been done. The configuration of the carbon dioxide capture equipment 1 according to the present embodiment will be described below.

As shown in FIG. 1, the carbon dioxide recovery facility 1 has an absorption tower 20 (absorption device) that absorbs carbon dioxide contained in the process exhaust gas 2 (exhaust gas to be treated) into an absorption liquid (lean liquid 5) containing water. ), And a regeneration tower 30 (regeneration device) that regenerates the rich liquid 4 by releasing carbon dioxide from the absorption liquid (rich liquid 4) that has absorbed the carbon dioxide supplied from the absorption tower 20. Of these, the process exhaust gas 2 in which carbon dioxide is absorbed by the lean liquid 5 in the absorption tower 20 is discharged from the absorption tower 20 as the absorption tower exhaust gas 3. Further, the released carbon dioxide is discharged from the regeneration tower 30 as the regeneration tower exhaust gas 8 (regeneration device exhaust gas). The process exhaust gas 2 supplied to the absorption tower 20 is not particularly limited, but may be, for example, exhaust gas discharged from a thermal power plant, a steel mill, a cleaning plant, or the like. Such exhaust gas is supplied to the absorption tower 20 by a blower (not shown).

The absorption tower 20 and the regeneration tower 30 are connected by a rich liquid line L1 and a lean liquid line L2. Of these, the rich liquid line L1 supplies the rich liquid 4 discharged from the absorption tower 20 to the regeneration tower 30. The lean liquid line L2 supplies the lean liquid 5 discharged from the regeneration tower 30 to the absorption tower 20. The absorption liquids 4 and 5 circulate between the absorption tower 20 and the regeneration tower 30 by the rich liquid line L1 and the lean liquid line L2, absorb carbon dioxide in the absorption tower 20 to become the rich liquid 4, and the carbon dioxide in the regeneration tower 30. Is released to become a lean liquid 5. As the absorption liquid, for example, an amine-based aqueous solution such as monoethanolamin or diethanolamin can be preferably used, but the absorption liquid is not limited to such an amine type. Further, it may be composed of an aqueous solution containing one or more kinds of amines.

The absorption tower 20 has an absorption unit 20a (packed layer or tray) housed in the absorption tower 20. The absorption unit 20a is configured as a countercurrent gas-liquid contact device, and contacts the process exhaust gas 2 with the lean liquid 5 to absorb carbon dioxide contained in the process exhaust gas 2 into the lean liquid 5. More specifically, the process exhaust gas 2 supplied to the lower part of the absorption tower 20 rises in the absorption unit 20a. On the other hand, the lean liquid 5 from the regeneration tower 30 is dispersed and dropped in the absorption unit 20a. In the absorption unit 20a, the process exhaust gas 2 and the lean liquid 5 are in gas-liquid contact, and the carbon dioxide contained in the process exhaust gas 2 is absorbed by the lean liquid 5. The lean liquid 5 that has absorbed carbon dioxide becomes the rich liquid 4.

The rich liquid 4 is temporarily stored in the lower part of the absorption tower 20 and discharged from the bottom part to the rich liquid line L1. Carbon dioxide is removed from the process exhaust gas 2 in gas-liquid contact with the lean liquid 5, and the process exhaust gas 2 is discharged from the absorption unit 20a as the absorption tower exhaust gas 3, rises in the absorption tower 20, and is discharged from the top of the absorption tower 20.

A regenerated heat exchanger 31 (regenerated heat exchanger) is provided between the absorption tower 20 and the regenerating tower 30. The regenerated heat exchanger 31 has a rich liquid 4 supplied from the absorption tower 20 to the regeneration tower 30 through the rich liquid line L1 and a lean liquid supplied from the regeneration tower 30 to the absorption tower 20 through the lean liquid line L2. It is configured to exchange heat with the liquid 5. As a result, the lean liquid 5 serves as a heat source, and the rich liquid 4 is heated to a desired temperature. In other words, the rich liquid 4 serves as a cooling heat source, and the lean liquid 5 is cooled to a desired temperature.

The regeneration tower 30 has a regeneration unit 30a (packed bed or tray) housed in the regeneration tower 30. The regeneration unit 30a is configured as a countercurrent gas-liquid contact device, and heats the rich liquid 4 to release carbon dioxide from the rich liquid 4. More specifically, the rich liquid 4 supplied to the upper part of the regeneration tower 30 descends in the regeneration section 30a. On the other hand, a heater (not shown) is provided in the lower part of the regeneration tower 30, and the lean liquid 5 stored in the lower part of the regeneration tower 30 is heated by the heater to generate steam from the lean liquid 5. The generated steam rises in the regeneration unit 30a. In the regeneration unit 30a, the rich liquid 4 and the steam come into gas-liquid contact, the rich liquid 4 is heated, and carbon dioxide is released from the rich liquid 4. The rich liquid 4 that has released carbon dioxide becomes the lean liquid 5. In this way, the absorption liquid is regenerated in the regeneration tower 30. The lean liquid 5 may be heated by a reboiler (not shown) instead of the heater described above. The reboiler heats a part of the lean liquid 5 discharged from the regeneration tower 30 by high-temperature steam or the like supplied from the outside. The steam generated when the lean liquid 5 is heated by the reboiler is discharged from the regeneration tower 30 together with carbon dioxide as the regeneration tower exhaust gas 8 (regeneration device exhaust gas).

The lean liquid 5 is discharged from the bottom of the regeneration tower 30 to the lean liquid line L2. The vapor in gas-liquid contact with the rich liquid 4 contains carbon dioxide and is discharged from the regeneration tower 30a as exhaust gas 8 of the regeneration tower, rises in the regeneration tower 30, and is discharged from the top of the regeneration tower 30.

The rich liquid line L1 is provided with a rich liquid pump 32 (first pump device). The rich liquid 4 discharged from the absorption tower 20 by the rich liquid pump 32 is supplied to the regeneration tower 30 through the regenerative heat exchanger 31.

The lean liquid line L2 is provided with a lean liquid pump 34 (second pump device). The lean liquid 5 discharged from the regeneration tower 30 by the lean liquid pump 34 is supplied to the absorption tower 20 through the regeneration heat exchanger 31. As described above, the regenerative heat exchanger 31 cools the lean liquid 5 passing through the lean liquid line L2 by exchanging heat with the rich liquid 4 passing through the rich liquid line L1.

Further, in the lean liquid line L2, a lean liquid cooler 35 (absorption liquid cooling device) for cooling the lean liquid 5 supplied from the regeneration tower 30 (more specifically, the regeneration heat exchanger 31) to the absorption tower 20 is provided. ) Is provided. A cooling medium such as cooling water is supplied to the lean liquid cooler 35 from the outside, and the lean liquid cooler 35 further cools the lean liquid 5 cooled in the regenerated heat exchanger 31 to a desired temperature. ..

The lean liquid 5 cooled in the lean liquid cooler 35 is supplied to the absorption unit 20a of the absorption tower 20. In the absorption unit 20a, the lean liquid 5 is in gas-liquid contact with the process exhaust gas 2, and the carbon dioxide contained in the process exhaust gas 2 is absorbed by the lean liquid 5 to become the rich liquid 4. In this way, in the carbon dioxide recovery facility 1, the absorption liquid circulates while repeating a state of becoming a lean liquid 5 having a relatively low carbon dioxide concentration and a state of becoming a rich liquid 4 having a relatively high carbon dioxide concentration. It has become like.

The carbon dioxide recovery facility 1 in the present embodiment further includes a gas cooler 36 (gas cooling device) for cooling the recycled tower exhaust gas 8 and a gas-liquid separator 37 (gas-liquid separator). .. Of these, the gas cooler 36 cools the regenerated tower exhaust gas 8 discharged from the regenerated tower 30 with a cooling medium such as cooling water from the outside. The cooled regeneration tower exhaust gas 8 is supplied to the gas-liquid separator 37. The gas-liquid separator 37 separates the condensed water from the cooled regeneration tower exhaust gas 8 and discharges the regeneration tower exhaust gas 8. The regenerated tower exhaust gas 8 discharged from the gas-liquid separator 37 is recovered by a recovery facility (not shown) and utilized.

The regeneration tower 30 and the gas-liquid separator 37 are connected by a gas line L3. The gas cooler 36 described above is provided in the gas line L3. Further, the regeneration tower 30 and the gas-liquid separator 37 are connected by a return line L4. The condensed water separated from the regenerated tower exhaust gas 8 is returned to the upper part of the regenerated tower 30 through the return line L4.

The rich liquid pump 32 and the lean liquid pump 34 described above are controlled by the control device 38. The control device 38 is a valve (shown) provided in the rich liquid pump 32 and the lean liquid pump 34, and further in the rich liquid line L1 and the lean liquid line L2, etc., based on signals transmitted from various measuring instruments and the like. To control. As an example of the measuring instrument, a liquid level meter for measuring the liquid level of the rich liquid 4 stored in the lower part of the absorption tower 20, and a liquid level of the lean liquid 5 stored in the lower part of the regeneration tower 30 are measured. Examples thereof include a liquid level meter, a thermometer for measuring the temperature of the rich liquid 4 and the lean liquid 5, a pressure gauge for measuring the pressure of the rich liquid 4 and the lean liquid 5, and the like.

Next, the arrangement of each device of the carbon dioxide capture equipment 1 according to the present embodiment will be described with reference to FIGS. 2 and 3.

As shown in FIGS. 2 and 3, a plurality of devices constituting the carbon dioxide capture equipment 1 are installed in the installation plane area 40 set on the installation surface of the carbon dioxide capture equipment 1. The installation plane area 40 extends along an installation reference line 41 passing through the absorption tower 20 and the regeneration tower 30. The installation reference line 41 is located in the installation plane area 40 so as to pass through the center of the absorption tower 20 and the center of the regeneration tower 30 when viewed from above (that is, when each device is projected onto the installation plane area 40). It is set. The installation reference line 41 according to the present embodiment is formed in a straight line. As a result, the installation plane area 40 is formed in a straight line (slender rectangular shape). Regarding the installation reference line 41, in addition to the straight line passing through the center of the absorption tower 20 and the center of the regeneration tower 30, the line connecting the centers of both short sides of the rectangular installation plane area 40 or the installation plane area 40 is rectangular. In some cases, it can be set on either long side. Further, the installation plane area 40 may be set first, and the installation reference line 41 may be appropriately set according to the shape of the installation plane area 40. Furthermore, it is not necessary to set only the installation plane area 40 and explicitly set the installation reference line 41. When only the installation plane area 40 is set and the installation reference line 41 is not explicitly set, for example, the installation plane area 40 is partitioned on the installation surface and extends in the longitudinal direction (direction in which a plurality of devices are arranged). The longest line among the lane markings such as straight lines, fold lines or curves (that is, the lines constituting the outer contour of the installation plane area 40) can be treated as the installation reference line 41, and the longest of the lane markings. A line or the like is set as the installation reference line 41.

The width of the installation plane area 40 is the dimension of the absorption tower 20 in the direction orthogonal to the installation reference line 41 (vertical direction in FIG. 3) in the horizontal plane and the dimension of the regeneration tower 30 in the direction orthogonal to the installation reference line 41. It is defined by the larger dimension. 2 and 3 show an example in which the size of the absorption tower 20 is larger than the size of the regeneration tower 30, but the size is not limited to this. If the dimensions of the regeneration tower 30 are larger than the dimensions of the absorption tower 20, the width of the installation plane area 40 is defined by the dimensions of the regeneration tower 30. On the other hand, if the dimensions of the absorption tower 20 and the dimensions of the regeneration tower 30 are equal, the width of the installation plane area 40 is defined by either the dimensions of the absorption tower 20 or the dimensions of the regeneration tower 30.

Within such an installation plane area 40, a plurality of devices are linearly arranged. 2 and 3 show an example of device arrangement. Here, the control device 38 is installed at one end of the installation plane area 40 (the left end in FIGS. 2 and 3). The control device 38 is accessible from the outside of the installation plane area 40 in the direction along the installation reference line 41. That is, the front surface of the control device 38 provided with the indicators, operating devices, and doors is the left side surface in FIG. The absorption tower 20, the rich liquid pump 32, the lean liquid cooler 35, the regenerating heat exchanger 31, the lean liquid pump 34, the regenerating tower 30, the gas cooler 36 and the gas-liquid separator 37 have a control device 38. They are arranged in this order from the installed end to the other end. However, the order of device arrangement is not limited to this, and is arbitrary. Further, in FIG. 3, each device is arranged on the installation reference line 41, and the center of each device when viewed from above is arranged on the installation reference line 41. However, the present invention is not limited to this, and the center of each device other than the absorption tower 20 and the regeneration tower 30 may not be arranged on the installation reference line 41 as long as it is installed in the installation plane area 40. .. Although the present embodiment shows an example in which the control device 38 is installed at one end of the installation plane area 40 (the left end in FIGS. 2 and 3), the configuration is limited to this. There is no. For example, the control device 38 may be installed so as to be accessible from the upper side or the lower side of the installation plane area 40 shown in FIGS. 2 and 3.

The pipes constituting the rich liquid line L1, the lean liquid line L2, the gas line L3, and the return line L4 may extend substantially along the installation reference line 41. A valve (not shown) is provided at a predetermined position in each pipe. Piping and valves may be located within the installation area when viewed from above. In this specification, such pipes and valves are treated as not constituting devices such as the absorption tower 20 and the regeneration tower 30. Further, the various measuring instruments described above (liquid level meter, thermometer, pressure gauge, etc.) are also treated as not constituting devices such as the absorption tower 20 and the regeneration tower 30. That is, the apparatus in the present embodiment is a structure in which some physical or chemical treatment (heat exchange, cooling, heating, pressurization, depressurization, absorption, adsorption, regeneration, chemical change, etc.) is performed inside the apparatus. pointing. Pipes and cables for connecting devices for performing such processing and distributing media, electricity, information, etc. used in the devices, and media, electricity, information attached to these pipes and cables. Valves and switches that control the distribution (quantity, etc.) of these, or measuring instruments that measure the distribution status of these media, electricity, information, etc. are not included.

On one side of the installation reference line 41 (for example, the lower side in FIG. 3), a first access area 42 is provided outside the installation plane area 40. The first access area 42 is an area in which each device can be accessed, and is an area in which a worker who wants to access each device and perform maintenance enters. Similarly, on the other side of the installation reference line 41 (eg, the upper side in FIG. 3), a second access area 43 is provided outside the installation plane area 40.

When projected onto a vertical plane including the installation reference line 41 (vertical plane in the present embodiment) (when each device is viewed along a direction orthogonal to the installation reference line 41), the devices adjacent to each other overlap each other. Does not have. That is, when each device is viewed from the first access area 42, the devices adjacent to each other do not overlap each other, and the devices adjacent to each other are separated from each other. In the embodiment shown in FIGS. 2 and 3, the control device 38 and the absorption tower 20 do not overlap, the absorption tower 20 and the rich liquid pump 32 do not overlap, and the rich liquid pump 32 and the lean liquid cooling The vessel 35 does not overlap. The lean liquid cooler 35 and the regenerating heat exchanger 31 do not overlap, the regenerating heat exchanger 31 and the lean liquid pump 34 do not overlap, and the lean liquid pump 34 and the regenerating tower 30 do not overlap. It does not overlap. Further, the regeneration tower 30 and the gas cooler 36 do not overlap, and the gas cooler 36 and the gas-liquid separator 37 do not overlap. Structures that are not included in the devices such as the various pipes and valves described above may also be arranged so as not to overlap with the devices.

As shown in FIGS. 2 and 3, in the present embodiment, the devices do not overlap each other even when viewed from above (when the devices are vertically projected onto the installation plane area 40). However, the present invention is not limited to this, and the devices may overlap each other when viewed from above. For example, the rich liquid pump 32, the lean liquid cooler 35, the regenerated heat exchanger 31 and the lean liquid pump 34 may be arranged so as to overlap each other when viewed from above. In this case, the installation space of the carbon dioxide capture equipment 1 can be reduced. For example, the lean liquid cooler 35 may be arranged above the rich liquid pump 32. In other words, regardless of whether or not the devices overlap each other when viewed from above, each device in the present embodiment has a vertical plane including the installation reference line 41 (the installation reference line 41 is formed in a straight line). When each device is projected horizontally on the development plane with the vertical plane unfolded when it is not installed, each device is installed so as not to have an overlapping portion.

Next, the operation of the present embodiment having such a configuration will be described. Here, the maintenance method of the carbon dioxide capture equipment 1 shown in FIGS. 1 to 3 will be described. Examples of maintenance include inspection of the liquid level meter (not shown) attached to the absorption tower 20, retightening of bolts used in each part of the absorption tower 20, replacement of the rich liquid pump 32, and rich liquid. Inspection of thermometers and pressure gauges (neither shown) provided on line L1 may be mentioned.

When each device of the carbon dioxide capture facility 1 shown in FIG. 1 is arranged as shown in FIGS. 2 and 3, maintenance of each device is performed from both the first access area 42 and the second access area 43. be able to.

That is, on one side of the installation reference line 41 (for example, the lower side in FIG. 3), each device can be accessed and maintained from the first access area 42 outside the installation plane area 40. Here, as described above, when each device is viewed from the first access area 42 along the direction orthogonal to the installation reference line 41, the devices adjacent to each other do not overlap each other. In this case, access to one device is prevented from being blocked by another device adjacent to it. Therefore, the workers in the first access area 42 are each device, that is, the control device 38, the absorption tower 20, the rich liquid pump 32, the lean liquid cooler 35, the regenerated heat exchanger 31, and the lean liquid pump 34. , The regeneration tower 30, the gas cooler 36 and the gas-liquid separator 37 can be accessed and maintained.

Further, on the other side of the installation reference line 41 (for example, the upper side in FIG. 3), each device can be accessed from the second access area 43 outside the installation plane area 40 for maintenance. Here, as described above, when each device is viewed from the second access area 43 along the direction orthogonal to the installation reference line 41, the devices adjacent to each other do not overlap each other. In this case, access to one device is prevented from being blocked by another device adjacent to it. Therefore, the operator in the second access area 43 is each device, that is, the control device 38, the absorption tower 20, the rich liquid pump 32, the lean liquid cooler 35, the regenerated heat exchanger 31, and the lean liquid pump 34. , The regeneration tower 30, the gas cooler 36 and the gas-liquid separator 37 can be accessed and maintained.

As described above, according to the present embodiment, when each device composed of the absorption tower 20 and the regeneration tower 30 of the carbon dioxide recovery facility 1 is projected onto the vertical surface including the installation reference line 41 (installation reference line 41). When viewed along a direction orthogonal to (), the devices adjacent to each other do not have an overlap. This can prevent access to each device from the first access area 42 from being blocked by other adjacent devices, and access to each device from the second access area 43 by other adjacent devices. It can be prevented from being blocked. Therefore, each device can be easily accessed from the first access area 42 and the second access area 43, and maintenance can be easily performed. As a result, maintainability can be ensured.

Further, according to the present embodiment, the width of the installation plane area 40 is defined by the dimensions of the absorption tower 20 in the direction orthogonal to the installation reference line 41 and the dimensions of the regeneration tower 30 in the direction orthogonal to the installation reference line 41. Has been done. As a result, the arrangement of each device can be made dense, and the installation area of the carbon dioxide capture equipment 1 can be reduced. Further, the distance from the first access area 42 to each device and the distance from the second access area 43 to each device can be equalized, and each device is provided with the first access area 42 and the second access area 43. It is easily accessible from both. Therefore, it is possible to facilitate access to each device and improve maintainability as described above, while arranging the devices densely.

Further, according to the present embodiment, the installation reference line 41 is formed in a straight line. As a result, for each device, a wide work space can be secured on both sides of the installation reference line 41, and maintainability can be improved.

Further, according to the present embodiment, the devices do not overlap each other when viewed from above. As a result, a wide work space can be secured on the upper side or the lower side of each device, and maintainability can be improved.

Further, according to the present embodiment, the gas cooler 36 is installed in the installation plane area 40. As a result, the maintainability of the gas cooler 36 can be ensured, and the installation area of the carbon dioxide capture equipment 1 can be further reduced.

Further, according to the present embodiment, the gas-liquid separator 37 is installed in the installation plane area 40. As a result, the maintainability of the gas-liquid separator 37 can be ensured, and the installation area of the carbon dioxide recovery facility 1 can be further reduced.

(Second embodiment)
Next, the maintenance method of the carbon dioxide recovery equipment and the carbon dioxide recovery equipment according to the second embodiment of the present invention will be described with reference to FIG.

The second embodiment shown in FIG. 4 is mainly different in that the installation reference line is formed as a V-shaped polygonal line, and the other configurations are the first embodiment shown in FIGS. 1 to 3. It is almost the same as the form. In FIG. 4, the same parts as those of the first embodiment shown in FIGS. 1 to 3 are designated by the same reference numerals, and detailed description thereof will be omitted.

In the present embodiment, as shown in FIG. 4, the installation reference line 41 is formed as a V-shaped polygonal line. As a result, the installation plane area 40 is formed in a V shape.

More specifically, the installation reference line 41 has a first reference line portion 51 and a second reference line portion 52, each of which is formed in a straight line. One end of the first reference line portion 51 and one end of the second reference line portion 52 are connected to each other.

The installation plane area 40 has a first installation area portion 53 extending along the first reference line portion 51 and a second installation area portion 54 extending along the second reference line portion 52. At least two devices are installed in the first installation area portion 53 and the second installation area portion 54, respectively.

Also in this embodiment, the installation reference line 41 is set to a V-shaped polygonal line that passes through the center of the absorption tower 20 and the center of the regeneration tower 30 when viewed from above. Similar to the first embodiment, the installation reference line 41 has a V shape connecting the centers of the first installation area portion 53 and the second installation area portion 54 in the width direction (direction perpendicular to the longitudinal direction). It can also be set as a polygonal line of No. 1 or a V-shaped polygonal line consisting of sides along the respective longitudinal directions of the first installation area portion 53 and the second installation area portion 54. When only the installation plane area 40 consisting of the first installation area portion 53 and the second installation area portion 54 is set and the installation reference line 41 is not explicitly set, for example, the first installation area portion 53 and the second installation area are set. One of the V-shaped polygonal lines (that is, the dividing line extending in the direction in which the installation plane area 40 is divided and the plurality of devices are arranged) consisting of two sides along the respective longitudinal directions of the portion 54 is the installation reference line 41. Can be treated (set) as.

In the example shown in FIG. 4, the control device 38, the absorption tower 20, the rich liquid pump 32, the lean liquid cooler 35, and the regenerated heat exchanger 31 are provided in the first installation area portion 53, and the first reference line portion 51. It is installed in this order toward the intersection of the second reference line portion 52 and the second reference line portion 52. In the second installation area portion 54, a gas-liquid separator 37, a gas cooler 36, a regeneration tower 30, and a lean liquid pump 34 are directed toward the intersection of the first reference line portion 51 and the second reference line portion 52. They are installed in the order of the levers. The order of device arrangement in each of the installation area portions 53 and 54 is not limited to this, and is arbitrary. Further, it is also arbitrary whether each device is installed in each installation area portion 53 or 54.

The first reference line portion 51 and the second reference line portion 52 form an angle of less than 180 °. In this way, the installation reference line 41 is formed as a V-shaped polygonal line. In FIG. 4, the angle formed by the first reference line portion 51 and the second reference line portion 52 is 90 °, and the first reference line portion 51 and the second reference line portion 52 are connected vertically to each other. Has been done. In FIG. 4, the length of the first installation area portion 53 in the direction along the first reference line portion 51 and the length of the second installation area portion 54 in the direction along the second reference line portion 52 become equal. However, it is not limited to this.

The pipes constituting the rich liquid line L1, the lean liquid line L2, the gas line L3, and the return line L4 may extend along the reference line portions 51 and 52, respectively. However, the corner portion of the installation plane area 40 (near the intersection of the first reference line portion 51 and the second reference line portion 52) is curved when viewed from above, and a part of the installation plane area 40 protrudes inside the installation plane area 40. You may do so.

An inner access area 55 accessible to each device is provided at an inner angle portion of the first reference line portion 51 and the second reference line portion 52 in the outside of the installation plane area 40. The inner access area 55 is an area provided between the first installation area portion 53 and the second installation area portion 54, and accesses and maintains each device installed in each installation area portion 53, 54. This is an area where workers who are trying to perform maintenance can enter. The worker in the inner access area 55 can also access the device (regenerated heat exchanger 31 shown in FIG. 4) arranged at or near the intersection of the first reference line portion 51 and the second reference line portion 52. It is preferable that it is. That is, the minimum value of the angle formed by the first reference line portion 51 and the second reference line portion 52 can be set as an angle that can be accessed by the device arranged at or near the intersection.

A first outer access area 56 and a second outer access area 57 are provided on the outside of the installation plane area 40 formed by folding in a V shape. The first outer access area 56 is an area where a worker who intends to access and perform maintenance on each device installed in the first installation area portion 53 enters. The second outer access area 57 is an area where a worker who intends to access and perform maintenance on each device installed in the second installation area portion 54 enters.

In the present embodiment, when each device installed in the first installation area portion 53 is viewed along the direction orthogonal to the first reference line portion 51 of the installation reference line 41, the devices adjacent to each other are adjacent to each other. Do not overlap. That is, when viewed from the inner access area 55 and the first outer access area 56, the devices adjacent to each other in the first installation area portion 53 do not overlap each other. By providing such a configuration, in the present embodiment, in the first installation area portion 53, access to one device is prevented from being blocked by another device adjacent to the device. Therefore, the workers in the inner access area 55 and the first outer access area 56 can easily access and perform maintenance on each device of the first installation area portion 53, and maintainability can be ensured. can.

Similarly, when each device installed in the second installation area portion 54 is viewed along the direction orthogonal to the second reference line portion 52 of the installation reference line 41, the devices adjacent to each other do not overlap each other. .. That is, when viewed from the inner access area 55 and the second outer access area 57, the devices adjacent to each other in the second installation area portion 54 do not overlap each other. By providing such a configuration, in the present embodiment, in the second installation area portion 54, access to one device is prevented from being blocked by another device adjacent to the device. Therefore, the workers in the inner access area 55 and the second outer access area 57 can easily access and perform maintenance on each device in the second installation area portion 54, and maintainability can be ensured. can.

That is, also in the present embodiment, each device has a portion where each device overlaps when the devices are horizontally projected onto the vertical surface including the installation reference line 41 (the development plane in which the vertical surface is developed). It is arranged so as not to.

As described above, according to the present embodiment, the installation reference line 41 is formed as a V-shaped polygonal line, and an inner access area 55 accessible to each device is provided inside the installation plane area 40. Therefore, each device can be easily accessed from the inner access area 55, the first outer access area 56, and the second outer access area 57, and maintenance can be easily performed. In particular, since the installation reference line 41 is formed as a V-shaped polygonal line, the device installed in the first installation area portion 53 and the device installed in the second installation area portion 54 can be brought close to each other. .. As a result, when performing maintenance from the inner access area 55, the moving distance of the worker between the device of the first installation area portion 53 and the device of the second installation area portion 54 can be shortened. Therefore, maintainability can be improved.

(Third embodiment)
Next, the maintenance method of the carbon dioxide recovery equipment and the carbon dioxide recovery equipment according to the third embodiment of the present invention will be described with reference to FIG.

The third embodiment shown in FIG. 5 is mainly different in that the installation reference line is formed as a U-shaped polygonal line, and the other configurations are the first embodiment shown in FIGS. 1 to 3. It is almost the same as the form of. In FIG. 5, the same parts as those of the first embodiment shown in FIGS. 1 to 3 are designated by the same reference numerals, and detailed description thereof will be omitted.

In the present embodiment, as shown in FIG. 5, the installation reference line 41 is formed as a U-shaped polygonal line.

More specifically, the installation reference line 41 has a first reference line portion 61, a second reference line portion 62, and a third reference line portion 63, each of which is formed in a straight line. One end of the third reference line portion 63 is connected to one end of the first reference line portion 61, and the other end of the third reference line portion 63 is connected to one end of the second reference line portion 62.

The installation plane area 40 includes a first installation area portion 64 extending along the first reference line portion 61, a second installation area portion 65 extending along the second reference line portion 62, and a third reference line portion 63. It has a third installation area portion 66 extending through the surface. At least two devices are arranged in the first installation area portion 64, the second installation area portion 65, and the third installation area portion 66, respectively.

Also in this embodiment, the installation reference line 41 is set as a U-shaped polygonal line that passes through the center of the absorption tower 20 and the center of the regeneration tower 30 when viewed from above. Similar to the first embodiment and the second embodiment, regarding the installation reference line 41, the width direction of each of the first installation area portion 64, the second installation area portion 65, and the third installation area portion 66 ( A U-shaped polygonal line connecting the centers (perpendicular to the longitudinal direction), or a U-shaped polygonal line consisting of the respective longitudinal sides of the first installation area portion 64, the second installation area portion 65, and the third installation area portion 66. It can also be set to a polygonal line in the shape of. When only the installation plane area 40 including the first installation area portion 64, the second installation area portion 65, and the third installation area portion 66 is set and the installation reference line 41 is not explicitly set, for example, the first installation area A U-shaped polygonal line consisting of three sides in each longitudinal direction of the portion 64, the second installation area portion 65, and the third installation area portion 66 (that is, the direction in which the installation plane area 40 is divided and a plurality of devices are arranged). Any one of the lane markings extending to) can be treated (set) as the installation reference line 41.

In the example shown in FIG. 5, in the first installation area portion 64, the control device 38, the absorption tower 20, and the rich liquid pump 32 are directed toward the intersection of the first reference line portion 61 and the third reference line portion 63. It is installed in this order. In the second installation area portion 65, the gas-liquid separator 37, the gas cooler 36, and the regeneration tower 30 are installed in this order toward the intersection of the second reference line portion 62 and the third reference line portion 63. ing. In the third installation area portion 66, the lean liquid cooler 35, the regenerative heat exchanger 31 and the lean liquid pump 34 are arranged in this order toward the intersection of the second reference line portion 62 and the third reference line portion 63. It is installed in. The order of device arrangement in each installation area portion 64 to 66 is not limited to this, and is arbitrary. It is also arbitrary which of the installation area portions 64 to 66 each device is installed.

The first reference line portion 61 and the second reference line portion 62 are parallel to each other. The third reference line portion 63 is perpendicular to the first reference line portion 61 and the second reference line portion 62. That is, the angle formed by the first reference line portion 61 and the third reference line portion 63 is 90 °, and the angle formed by the second reference line portion 62 and the third reference line portion 63 is 90 °. It has become. In this way, the installation reference line 41 is formed as a U-shaped polygonal line. However, the angle formed by the first reference line portion 61 and the third reference line portion 63 is arbitrary within a range of less than 180 ° if the inner access area 67 described later can be provided. The same applies to the angle formed by the second reference line portion 62 and the third reference line portion 63. Further, in FIG. 5, the length of the first installation area portion 64 in the direction along the first reference line portion 61 and the length of the second installation area portion 65 in the direction along the second reference line portion 62 become equal. However, it is not limited to this.

The pipes constituting the rich liquid line L1, the lean liquid line L2, the gas line L3, and the return line L4 may extend along the respective reference line portions 61 to 63. However, at the corner of the installation plane area 40 (near the intersection of the first reference line portion 61 and the third reference line portion 63, and near the intersection of the second reference line portion 62 and the third reference line portion 63), the upper part is above. It may be curved when viewed from above, and a part thereof may protrude inside the installation plane area 40.

Inside the installation plane area 40, an inner access area 67 that can access each device is provided. The inner access area 67 is an area surrounded by the first installation area portion 64, the second installation area portion 65, and the third installation area portion 66, and is provided to each device installed in each installation area portion 64 to 66. This is an area where workers who want to access and perform maintenance can enter. The worker in the inner access area 67 also accesses the device (lean liquid cooler 35 shown in FIG. 5) arranged at or near the intersection of the first reference line portion 61 and the third reference line portion 63. It is preferable that it is possible. That is, the minimum value of the angle formed by the first reference line portion 61 and the third reference line portion 63 can be set as an angle that can be accessed by the device arranged at or near the intersection. Similarly, the worker in the inner access area 67 also has a device (lean liquid pump 34 shown in FIG. 5) arranged at or near the intersection of the second reference line portion 62 and the third reference line portion 63. It is preferable that it is accessible. That is, the minimum value of the angle formed by the second reference line portion 62 and the third reference line portion 63 can be set as an angle that can be accessed by the device arranged at or near the intersection.

A first outer access area 68, a second outer access area 69, and a third outer access area 70 are provided outside the installation plane area 40 formed by folding in a U shape. The first outer access area 68 is an area where a worker who intends to access and perform maintenance on each device installed in the first installation area portion 64 enters. The second outer access area 69 is an area where a worker who intends to access and perform maintenance on each device installed in the second installation area portion 65 enters. The third outer access area 70 is an area where a worker who intends to access and perform maintenance on each device installed in the third installation area portion 66 enters.

In the present embodiment, when each device installed in the first installation area portion 64 is viewed along the direction orthogonal to the first reference line portion 61 of the installation reference line 41, the devices adjacent to each other are adjacent to each other. Do not overlap. That is, when viewed from the inner access area 67 and the first outer access area 68, the devices adjacent to each other in the first installation area portion 64 do not overlap each other. By providing such a configuration, in the present embodiment, in the first installation area portion 64, access to one device is prevented from being blocked by another device adjacent to the device. Therefore, the workers in the inner access area 67 and the first outer access area 68 can easily access and perform maintenance on each device of the first installation area portion 64, and maintainability can be ensured. can.

Similarly, when each device installed in the second installation area portion 65 is viewed along the direction orthogonal to the second reference line portion 62 of the installation reference line 41, the devices adjacent to each other do not overlap each other. .. That is, when viewed from the inner access area 67 and the second outer access area 69, the devices adjacent to each other in the second installation area portion 65 do not overlap each other. By providing such a configuration, in the present embodiment, in the second installation area portion 65, access to one device is prevented from being blocked by another device adjacent to the device. Therefore, the workers in the inner access area 67 and the second outer access area 69 can easily access and perform maintenance on each device in the second installation area portion 65, and maintainability can be ensured. can.

Similarly, when each device installed in the third installation area portion 66 is viewed along the direction orthogonal to the third reference line portion 63 of the installation reference line 41, the devices adjacent to each other do not overlap each other. .. That is, when viewed from the inner access area 67 and the third outer access area 70, the devices adjacent to each other in the third installation area portion 66 do not overlap each other. By providing such a configuration, in the present embodiment, in the third installation area portion 66, access to one device is prevented from being blocked by another device adjacent to the device. Therefore, the workers in the inner access area 67 and the third outer access area 70 can easily access and perform maintenance on each device of the third installation area portion 66, and maintainability can be ensured. can.

That is, also in the present embodiment, each device has a portion where each device overlaps when the devices are horizontally projected onto the vertical surface including the installation reference line 41 (the development plane in which the vertical surface is developed). It is arranged so as not to.

As described above, according to the present embodiment, the installation reference line 41 is formed as a U-shaped polygonal line, and an inner access area 67 accessible to each device is provided inside the installation plane area 40. Therefore, each device can be easily accessed from the inner access area 67, the first outer access area 68, the second outer access area 69, and the third outer access area 70, and maintenance can be easily performed. In particular, since the installation reference line 41 is formed as a U-shaped polygonal line, the device installed in the first installation area portion 64, the device installed in the second installation area portion 65, and the third installation area portion The devices installed in 66 can be brought close to each other. As a result, when performing maintenance from the inner access area 67, the movement of the worker between the device of the first installation area portion 64, the device of the second installation area portion 65, and the device of the third installation area portion 66. The distance can be shortened. Therefore, maintainability can be improved.

(Fourth Embodiment)
Next, the maintenance method of the carbon dioxide recovery equipment and the carbon dioxide recovery equipment according to the fourth embodiment of the present invention will be described with reference to FIG.

The fourth embodiment shown in FIG. 6 is mainly different in that the installation reference line is formed as a C-shaped curve, and the other configurations are the first embodiments shown in FIGS. 1 to 3. It is almost the same as the form. In FIG. 6, the same parts as those of the first embodiment shown in FIGS. 1 to 3 are designated by the same reference numerals, and detailed description thereof will be omitted.

In the present embodiment, as shown in FIG. 6, the installation plane area 40 and the installation reference line 41 are formed as a C-shaped curve.

More specifically, the installation reference line 41 is curved and is formed so as to form a part of an arc. As a result, the installation plane area 40 is also curved and formed so as to form a part of an arc. The pipes constituting the rich liquid line L1, the lean liquid line L2, the gas line L3, and the return line L4 extend along the installation reference line 41. The installation reference line 41 may not form a part of an arc, for example, may form a part of an ellipse, and the curved shape is arbitrary.

Also in this embodiment, the installation reference line 41 is set to a C-shaped curve so as to pass through the center of the absorption tower 20 and the center of the regeneration tower 30 when viewed from above. Similar to the first to third embodiments, the installation reference line 41 is a C-shaped arc connecting the centers of the curved installation plane area 40 in the width direction (direction perpendicular to the longitudinal direction). Alternatively, it may be a curved C-shaped curve such as an arc that divides the installation plane area 40. When only the curved installation plane area 40 is set and the installation reference line 41 is not explicitly set, for example, a curved curve that divides the installation plane area 40 (that is, the installation plane area 40 is divided and a plurality of devices are arranged. Any of the lane markings extending in the direction in which it is formed) can be treated (set) as the installation reference line 41.

Inside the installation plane area 40, an inner access area 80 that can access each device is provided. The inner access area 80 is an area where a worker who wants to access and perform maintenance on each device installed in the installation plane area 40 enters.

An outer access area 81 is provided on the outside of the installation plane area 40 formed by being curved in a C shape. The outer access area 81 is an area where a worker who intends to access and perform maintenance on each device installed in the installation plane area 40 enters.

In the present embodiment, when each device installed in the installation plane area 40 is viewed along a direction orthogonal to the installation reference line 41 (that is, a direction perpendicular to the tangent line of the installation reference line 41), they are viewed from each other. Adjacent devices do not overlap. That is, when viewed from the inner access area 80 and the outer access area 81, adjacent devices do not overlap each other. By providing such a configuration, in the present embodiment, access to one device is prevented from being blocked by another device adjacent to the device. Therefore, the workers in the inner access area 80 and the outer access area 81 can easily access each device for maintenance, and maintainability can be ensured.

That is, also in the present embodiment, each device has a portion where each device overlaps when the devices are horizontally projected onto the vertical surface including the installation reference line 41 (the development plane in which the vertical surface is developed). It is arranged so as not to.

As described above, according to the present embodiment, the installation reference line 41 is formed as a C-shaped curve, and an inner access area 80 accessible to each device is provided inside the installation plane area 40. Therefore, each device can be easily accessed from the inner access area 80 and the outer access area 81, and maintenance can be easily performed. In particular, since the installation reference line 41 is formed as a C-shaped curve, the devices can be brought close to each other. This makes it possible to shorten the moving distance of the operator between the devices when performing maintenance from the inner access area 80. Therefore, maintainability can be improved.

According to the embodiment described above, access to each device can be facilitated and maintainability can be ensured.

Although some embodiments of the present invention have been described, these embodiments are presented as examples and are not intended to limit the scope of the invention. These novel embodiments can be implemented in various other embodiments, and various omissions, replacements, and changes can be made without departing from the gist of the invention. These embodiments and variations thereof are included in the scope and gist of the invention, and are also included in the scope of the invention described in the claims and the equivalent scope thereof. Further, as a matter of course, it is also possible to partially and appropriately combine these embodiments within the scope of the gist of the present invention.

1: Carbon dioxide recovery equipment, 20: Absorption tower, 30: Regeneration tower, 31: Regeneration heat exchanger, 32: Rich liquid pump, 34: Lean liquid pump, 35: Lean liquid cooler, 36: Gas Cooler, 37: Gas-liquid separator, 38: Control device, 40: Installation plane area, 41: Installation reference line, 51: First reference line part, 52: Second reference line part, 53: First installation area part , 54: 2nd installation area part, 55: inner access area, 61: 1st reference line part, 62: 2nd reference line part, 63: 3rd reference line part, 64: 1st installation area part, 65: 1st 2 installation area part, 66: 3rd installation area part, 67: inner access area, 80: inner access area,

Claims (8)

An absorber that absorbs carbon dioxide contained in the exhaust gas to be treated into the absorbing liquid,
A regenerating device that releases carbon dioxide from the absorbing liquid supplied from the absorbing device, and
A first pump device that supplies the absorbing liquid that has absorbed the carbon dioxide from the absorbing device to the regenerating device,
A second pump device that supplies the absorbing liquid in which the carbon dioxide is released from the regenerating device to the absorbing device, and the second pump device.
A regenerating heat exchange device for heat exchange between the absorbing liquid supplied from the absorbing device to the regenerating device and the absorbing liquid supplied from the regenerating device to the absorbing device.
An absorbent liquid cooling device for cooling the absorbent liquid supplied from the regenerative heat exchange device to the absorbent device, and a cooling device for the absorbent liquid.
Multiple devices composed of are installed in the installation plane area,
When each device is projected onto a vertical surface including a linear installation reference line set in the installation plane area, the devices do not overlap with each other.
The installation reference line is set to extend through the installation position of the absorption device and the installation position of the reproduction device.
The width of the installation plane area is defined by the size of the absorber in the direction orthogonal to the installation reference line and the larger of the dimensions of the regenerator in the direction orthogonal to the installation reference line .
The installation reference line is a carbon dioxide capture facility extending in a straight line from one end to the other end of the installation plane area . An absorber that absorbs carbon dioxide contained in the exhaust gas to be treated into the absorbing liquid,
A regenerating device that releases carbon dioxide from the absorbing liquid supplied from the absorbing device, and
A first pump device that supplies the absorbing liquid that has absorbed the carbon dioxide from the absorbing device to the regenerating device,
A second pump device that supplies the absorbing liquid in which the carbon dioxide is released from the regenerating device to the absorbing device, and the second pump device.
A regenerating heat exchange device for heat exchange between the absorbing liquid supplied from the absorbing device to the regenerating device and the absorbing liquid supplied from the regenerating device to the absorbing device.
An absorbent liquid cooling device for cooling the absorbent liquid supplied from the regenerative heat exchange device to the absorbent device, and a cooling device for the absorbent liquid.
Multiple devices composed of are installed in the installation plane area,
The installation plane area has a first installation area portion extending along the first reference line portion and a second installation area portion extending along the second reference line portion.
The first reference line portion and the second reference line portion are connected to each other.
At least two of the above devices are installed in each of the first installation area portion and the second installation area portion.
When each device installed in the first installation area portion is projected onto a vertical surface including the first reference line portion set in the first installation area portion, the devices do not overlap with each other.
When each device installed in the second installation area portion is projected onto a vertical surface including the second reference line portion set in the second installation area portion, the devices do not overlap with each other.
The installation reference line composed of the first reference line portion and the second reference line portion is set to extend through the installation position of the absorption device and the installation position of the reproduction device.
The width of the installation plane area is defined by the dimension of the absorber in the direction orthogonal to the installation reference line and the larger dimension of the dimension of the regenerator in the direction orthogonal to the installation reference line. Carbon dioxide recovery equipment. An absorber that absorbs carbon dioxide contained in the exhaust gas to be treated into the absorbing liquid,
A regenerating device that releases carbon dioxide from the absorbing liquid supplied from the absorbing device, and
A first pump device that supplies the absorbing liquid that has absorbed the carbon dioxide from the absorbing device to the regenerating device,
A second pump device that supplies the absorbing liquid in which the carbon dioxide is released from the regenerating device to the absorbing device, and the second pump device.
A regenerating heat exchange device for heat exchange between the absorbing liquid supplied from the absorbing device to the regenerating device and the absorbing liquid supplied from the regenerating device to the absorbing device.
An absorbent liquid cooling device for cooling the absorbent liquid supplied from the regenerative heat exchange device to the absorbent device, and a cooling device for the absorbent liquid.
Multiple devices composed of are installed in the installation plane area,
The installation plane area includes a first installation area portion extending along the first reference line portion, a second installation area portion extending along the second reference line portion, and a third installation extending along the third reference line portion. With an area part,
The first reference line portion and the third reference line portion are connected to each other.
The second reference line portion and the third reference line portion are connected to each other.
At least two of the devices are installed in each of the first installation area portion, the second installation area portion, and the third installation area portion.
When each device installed in the first installation area portion is projected onto a vertical surface including the first reference line portion set in the first installation area portion, the devices do not overlap with each other.
When each device installed in the second installation area portion is projected onto a vertical surface including the second reference line portion set in the second installation area portion, the devices do not overlap with each other.
When each device installed in the third installation area portion is projected onto a vertical surface including the third reference line portion set in the third installation area portion, the devices do not overlap with each other.
The installation reference line composed of the first reference line portion, the second reference line portion, and the third reference line portion is set to extend through the installation position of the absorption device and the installation position of the reproduction device. ,
The width of the installation plane area is defined by the dimension of the absorber in the direction orthogonal to the installation reference line and the larger dimension of the dimension of the regenerator in the direction orthogonal to the installation reference line. Carbon dioxide recovery equipment. An absorber that absorbs carbon dioxide contained in the exhaust gas to be treated into the absorbing liquid,
A regenerating device that releases carbon dioxide from the absorbing liquid supplied from the absorbing device, and
A first pump device that supplies the absorbing liquid that has absorbed the carbon dioxide from the absorbing device to the regenerating device,
A second pump device that supplies the absorbing liquid in which the carbon dioxide is released from the regenerating device to the absorbing device, and the second pump device.
A regenerating heat exchange device for heat exchange between the absorbing liquid supplied from the absorbing device to the regenerating device and the absorbing liquid supplied from the regenerating device to the absorbing device.
An absorbent liquid cooling device for cooling the absorbent liquid supplied from the regenerative heat exchange device to the absorbent device, and a cooling device for the absorbent liquid.
Multiple devices composed of are installed in the installation plane area,
When each device is projected onto a vertical surface including a curved installation reference line set in the installation plane area and viewed from an area located inside the installation plane area, the devices do not overlap with each other. ,
The installation reference line is set to extend through the installation position of the absorption device and the installation position of the reproduction device.
The width of the installation plane area is defined by the size of the absorber in the direction orthogonal to the installation reference line and the larger of the dimensions of the regenerator in the direction orthogonal to the installation reference line .
The installation reference line is a carbon dioxide capture facility extending in a C-shaped curve from one end to the other end of the installation plane area . The plurality of the devices further include a control device for controlling the first pump device and the second pump device.
The carbon dioxide capture device according to any one of claims 1 to 4, wherein the control device is installed at one end of the installation plane area. The carbon dioxide capture equipment according to claim 5, wherein the control device is accessible from the outside of the installation plane area in a direction along the installation reference line. The carbon dioxide capture equipment according to any one of claims 1 to 6, wherein the plurality of the devices do not overlap each other when viewed from above. The step of preparing the carbon dioxide capture equipment according to any one of claims 1 to 7.
A method for maintaining a carbon dioxide capture facility, comprising a step of accessing and performing maintenance by accessing at least one of the plurality of the devices from the outside of the installation plane area on one side of the installation reference line.

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