Gas separation and recovery device

Abstract

To provide a gas separation and recovery device with a simple configuration. [Solution] The gas separation and recovery device (10) is arranged around the outer circumference of a rotating cylinder (40) and comprises at least three flow paths (46, 47, 49) through which a mixed gas containing a specific component or a heated gas obtained by heating the mixed gas flows, and an adsorbent (37) capable of adsorbing the specific component provided in each flow path (46, 47, 49). The rotating cylinder (40) has an inlet (41) through which the heated gas can be introduced into the interior of the rotating cylinder (40), and an outlet (42) through which the heated gas introduced from the inlet (41) can be discharged from the interior of the rotating cylinder (40). When the rotating cylinder (40) rotates and the inlet (41) faces the flow path (49) in desorption mode, the outlet (42) faces the flow path (46) in preheat mode.

Description

Technical Field

[0001] The present invention relates to a temperature swing type gas separation and recovery device.

Background Art

[0002] A technique for recovering a specific component (for example, carbon dioxide) contained in a mixed gas containing a plurality of types of gases is disclosed in Patent Document 1.

[0003] The gas separation and recovery device disclosed in Patent Document 1 includes three or more adsorption parts having an adsorbent capable of adsorbing a specific component. Each adsorption part separates and recovers a specific gas by repeating adsorption of the specific component, desorption of the adsorbed gas, and cooling of the adsorbent.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] A fluid is used as a heat medium for gas desorption and adsorbent cooling. When manufacturing a gas separation and recovery device, a plurality of pipes connected to each adsorption part and a plurality of valves for controlling the fluid flow are required, but a simpler structure is desirable.

[0006] An object of the present invention is to provide a gas separation and recovery device having a simple configuration.

Means for Solving the Problems

[0007] In the present disclosure, a rotatable cylindrical rotating cylinder, at least three flow paths arranged on the outer periphery of the rotating cylinder through which a mixed gas containing a specific component or a heated gas obtained by heating the mixed gas flows, Each of the aforementioned flow channels is provided with an adsorbent capable of adsorbing specific components, Each of the aforementioned flow paths is The aforementioned mixed gas flows and adsorbs the aforementioned specific component in an adsorption mode. A desorption mode is provided in which the heated gas flows to desorb the specific component from the adsorbent that has adsorbed the specific component in the adsorption mode, and The heated gas that has passed through the flow path in the desorption mode flows to heat the adsorbent and prepare the desorption mode, and the rotation direction of the rotating cylinder can be circulated and switched to a preheat mode. The rotating cylinder is provided with an inlet hole into which the heated gas can be introduced, and an outlet hole into which the heated gas introduced through the inlet hole can be discharged from the inside of the rotating cylinder. A gas separation and recovery device is provided, wherein when the rotating cylinder rotates and the inlet hole faces the flow path in the desorption mode, the discharge hole faces the flow path in the preheating mode. [Effects of the Invention]

[0008] The present invention can provide a gas separation and recovery device with a simple configuration. [Brief explanation of the drawing]

[0009] [Figure 1] This is a perspective view of a gas separation and recovery apparatus according to an example. [Figure 2] Figure 1 is an exploded perspective view of the gas separation apparatus shown. [Figure 3] This is a perspective view of a rotating body, including a rotating cylinder, and a support structure that houses the rotating body. [Figure 4] This is a cross-sectional view taken along line 4-4 in Figure 2. [Figure 5] This is a cross-sectional view taken along line 5-5 in Figure 2. [Figure 6] This diagram illustrates the support of a support structure by a partition member. [Figure 7] This is a cross-sectional view of the area around the introduction section. [Figure 8]FIG. 8A is an exploded perspective view of the introduction part. FIG. 8B is a plan view of the introduction side cover. FIG. 8C is a plan view of the introduction side switching member. [Figure 9] It is a cross-sectional view around the discharge part. [Figure 10] FIG. 10A is an exploded perspective view of the discharge part. FIG. 10B is a plan view of the discharge side switching member. FIG. 10C is a plan view of the discharge side cover. [Figure 11] It is a diagram for explaining members (rotating cylinder, introduction side switching member, discharge side switching member) rotated by a drive shaft. [Figure 12] FIG. 12A is a table for explaining the switching of the flow path and mode. FIG. 12B is a diagram for explaining the switching of the flow path mode by the rotation of the rotating cylinder. [Figure 13] FIG. 13A is a diagram for explaining the flow of the mixed gas. FIG. 13B is a view taken in the direction of arrow 13B in FIG. 13A. FIG. 13C is a view taken in the direction of arrow 13C in FIG. 13A. [Figure 14] FIG. 14A is a diagram for explaining the flow of the heating gas. FIG. 14B is a view taken in the direction of arrow 14B in FIG. 14A. FIG. 14C is a view taken in the direction of arrow 14C in FIG. 14A.

MODE FOR CARRYING OUT THE INVENTION

[0010] <Example> Examples will be described based on the attached drawings. Note that the examples described here are not intended to particularly limit the present invention. Furthermore, the elements constituting each example can be appropriately combined. Also, members and parts having the same function are denoted by the same reference numerals, and duplicate explanations are omitted or simplified as appropriate. The directions (up and down, front and back, left and right) used in the examples are used for the purpose of explaining the examples and do not limit the orientation when using the gas separation and recovery device.

[0011] Refer to FIGS. 1 and 2. The gas separation and recovery device 10 according to the embodiment includes a main body 11 through which a mixed gas (for example, air) and a heated gas obtained by heating the mixed gas flow, and separates and recovers a specific component (for example, carbon dioxide) contained in the mixed gas, an introduction part 12 capable of introducing the mixed gas and the heated gas into the main body 11, and a discharge part 13 capable of discharging the mixed gas and the heated gas that have passed through the main body 11.

[0012] (Main body 11) Refer to FIGS. 2 and 3. The main body 11 includes a drive shaft 16 that can be driven by an electric motor or the like, a longitudinally shaped rotor 14 that can be rotated by the drive shaft 16, a support 15 that supports the rotor 14 inside, four plate-shaped walls 21 to 24 that surround the outer periphery of the rotor 14, and four plate-shaped partition members 30 that partition the space surrounded by the four walls 21 to 24 equally into four in the circumferential direction of the rotor 14.

[0013] (Flow paths 46 to 49) Refer to FIGS. 2, 4, and 5. Four flow paths 46 to 49 are formed on the outer periphery of the support 15 by the four walls 21 to 24 and the partition members 30. The cross-sectional shape of each of the flow paths 46 to 49 is substantially rectangular, but can be changed as appropriate. For example, if the main body 11 is cylindrical, the flow paths will be fan-shaped.

[0014] Of the four flow paths 46 to 49, any one of the flow paths is taken as the first flow path 46. Based on the first flow path 46, the remaining flow paths are taken as the second flow path 47, the third flow path 48, and the fourth flow path 49 in clockwise order when viewed from above. Hereinafter, based on the flow direction of the gas (mixed gas or heated gas) flowing through each of the flow paths 46 to 4, the upstream side is regarded as the upper side and the downstream side is regarded as the lower side.

[0015] A plate-shaped upper lid 28 is provided at the upstream opening formed by the four walls 21 to 24. A circular hole 28a concentric with the rotor 14 is formed in the upper lid 28. The hole 28A in the upper lid 28 is continuous with the upstream ends 46a to 49a of the respective flow paths 46 to 49.

[0016] A plate-shaped lower cover 29 is provided at the downstream opening, which is composed of four walls 21-24. The lower cover 29 has a circular hole 29a that is concentric with the rotating body 14. The hole 29a in the lower cover 29 is connected to the downstream ends 46b-49b of each of the flow channels 46-49.

[0017] The four walls 21-24, the top cover 28, and the bottom cover 29 are joined together by overlapping edges and fastened with screws 18, but they may also be joined by well-known techniques such as welding. The outer shape of the main body 11 is block-shaped.

[0018] (Partition member 30) Refer to Figures 4 and 5. The partition members 30 are arranged radially around the rotating body 14. With respect to the radial direction of the rotating body 14, each partition member 30 has a proximal edge 31 that is close to the rotating body 14 and a distal edge 35 that is far from the rotating body 14.

[0019] (Securing of partition member 30) The partition member 30 is perpendicular to the wall 21. The partition member 30 is fixed to the wall 21 by two fixing members 17, 17. Each fixing member 17 has an L-shaped cross-section and is superimposed on the wall 21 and the distal edge 35 of the partition member 30. The superimposed parts are fixed with screws 19. Similarly, the other partition members 30 are positioned perpendicular to the walls 22-24 and are fixed by fixing members 17, 17.

[0020] (Adsorbent material 37) At the vertical center of each of the flow paths 46 to 49, an adsorption section 36 is provided, equipped with an adsorbent 37 capable of adsorbing specific components. The adsorbent 37 is disc-shaped with a predetermined thickness. A well-known material is used for the adsorbent 37.

[0021] The adsorption section 36 comprises an adsorbent material 37, a base material 38 fixed to the walls 21-24 and the partition member 30, through which the adsorbent material 37 passes, and a plurality of holding members 39 for holding the adsorbent material 37 on the base material 38. The base material 38 is, for example, a plate material that matches the cross-sectional shape of the flow path. The method of providing the adsorbent material 37 in the flow path can be changed as appropriate.

[0022] (Rotating cylinder 40) Refer to Figures 3, 6, and 7. The rotating body 14 includes a cylindrical rotating cylinder 40 that can rotate around the rotation centerline CL. The rotating cylinder 40 has an inlet 41 into which heated gas can be introduced, and an outlet 42 into which heated gas can be discharged from the inside of the rotating cylinder 40. The inlet 41 and the outlet 42 are rectangular in shape with the vertical direction as the longitudinal direction. Refer to Figure 13A. The outlet 42 is located above the adsorbent 37. The inlet 41 is located below the adsorbent 37.

[0023] (Upper rotation axis 43) Refer to Figure 3. An upper rotating shaft 43 is fixed to the upper end of the rotating cylinder 40. The upper rotating shaft 43 closes the upper end of the rotating cylinder 40. An insertion hole 45a into which the drive shaft 16 can be inserted is formed in the upper end surface 45 of the upper rotating shaft 43. The outer diameter of the upper rotating shaft 43 is larger than the outer diameter of the rotating cylinder 40.

[0024] (Lower rotation axis 44) A lower rotating shaft 44 is fixed to the lower end of the rotating cylinder 40. The lower rotating shaft 44 blocks the lower end of the rotating cylinder 40. The outer diameter of the lower rotating shaft 44 is smaller than the outer diameter of the rotating cylinder 40.

[0025] (Support 15) The support 15 is capable of housing the rotating cylinder 40 inside and comprises an outer cylinder 50 concentric with the rotating cylinder 40, an upper support member 51 fixed to the upper end of the outer cylinder 50 and capable of supporting the upper rotating shaft 43, and a lower support member 53 fixed to the lower end of the outer cylinder 50 and capable of supporting the lower rotating shaft 44. A sliding bearing 57 (see Figure 7) is provided between the upper rotating shaft 43 and the upper support member 51. A sliding bearing 58 (see Figure 9) is provided between the lower rotating shaft 44 and the lower support member 53.

[0026] (Outer cylinder 50) Refer to Figures 3 to 5. The outer cylinder 50 has four first holes 55a to 55d arranged circumferentially facing the respective flow paths 46 to 49, and four second holes 56a to 56d located above the four first holes 55a to 55d and also arranged circumferentially facing the respective flow paths 46 to 49. The shape of the first holes is the same as that of the inlet hole 41. The shape of the second holes 56a to 56d is the same as that of the discharge hole 42.

[0027] (Fixing of support 15) Refer to Figure 6. The proximal edge 31 of each partition member 30 has an outer cylinder contact portion 32 that can contact the outer circumferential surface 50a of the outer cylinder 50, an upper fitting portion 33 that can fit into an upper groove 52a formed on the outer circumferential surface 52 of the upper support member 51, and a lower fitting portion 34 that can fit into a lower groove 54a formed on the outer circumferential surface 54 of the lower support member 53. As a result, the four partition members 30 restrict the forward, backward, left and right movement of the support 15.

[0028] The outer diameter of the upper support member 51 is larger than the outer diameter of the outer cylinder 50. The outer diameter of the lower support member 53 is also larger than the outer diameter of the outer cylinder 50. As described above, the proximal edge 31 is formed along the outer shape of the support body 15. When the support body 15 tries to move in the vertical direction, it comes into contact with the corner 33a of the upper fitting portion 33 and the corner 34a of the lower fitting portion 34. The four partition members 30 can also restrict the vertical movement of the support body 15. The outer diameters of members 50, 51, and 53 can be changed as appropriate as long as the above effects are achieved.

[0029] (Input side switching member 60) Refer to Figures 2, 7, 8, and 11. The introduction section 12 is equipped with an introduction-side switching member 60 that rotates together with the rotating cylinder 40 to simultaneously open and close the upstream ends 46a to 49a of each of the flow paths 46 to 49, thereby simultaneously switching the modes of each of the flow paths 46 to 49. The introduction-side switching member 60 is a disc-shaped member centered on the rotation centerline CL and is formed along the hole 28a of the upper cover 28. The introduction-side switching member 60 is screwed to the upper end surface 45 of the upper rotating shaft 43.

[0030] (Inlet side cover 70) The introduction section 12 includes an introduction-side cover 70 which is assembled to the introduction-side switching member 60. The introduction-side switching member 60 is rotatable relative to the introduction-side cover 70 about the rotation center line CL of the rotating cylinder 40.

[0031] (Exterior space, interior space) Refer to Figures 7 and 8A. The internal space (internal space of the introduction section 12) formed by the introduction-side switching member 60 and the introduction-side cover 70 has an annular outer space 12b centered on the rotational centerline CL of the rotating cylinder 40, and an inner space 12a inside the outer space 12b.

[0032] (Hole in the introduction-side switching member 60) Refer to Figure 8C. The introduction-side switching member 60 has a through hole 60a through which the drive shaft 16 can pass, an internal switching member hole 61 that can communicate with the internal space 12a, and external switching member holes 62a and 62b that can communicate with the external space 12b. The internal switching member hole 61 and the external switching member holes 62a and 62b are arc-shaped.

[0033] (Hole in the introduction-side cover 70) Refer to Figure 8B. The introduction-side lid 70 has four inner lid holes 71 that can communicate with the inner space 12a, and four outer lid holes 72 that can communicate with the outer space 12b. The four inner lid holes 71 are arranged at equal intervals in the circumferential direction. The four outer lid holes 72 are also arranged at equal intervals in the circumferential direction. Each hole 71, 72 is circular. There should be at least one inner lid hole 71 and one outer lid hole 72, but by arranging multiple holes 71, 72 at equal intervals in the circumferential direction, gas can be stably introduced into each flow path regardless of the position of the switching member inner hole 61 and the switching member outer holes 62a, 62b.

[0034] Refer to Figure 13B. Viewed along the rotational centerline CL, each inner hole 71 and each outer hole 72 of the lid are aligned radially along the rotational centerline CL and overlap with the partition member 30.

[0035] (Inner peripheral wall 66, 76) Refer to Figures 7 and 8. The introduction-side switching member 60 has a cylindrical first inner circumferential wall portion 66 that extends toward the introduction-side lid 70. The introduction-side lid 70 has a cylindrical second inner circumferential wall portion 76 that extends toward the introduction-side switching member 60. The first inner circumferential wall portion 66 is located radially outward of the second inner circumferential wall portion 76.

[0036] The first inner circumferential wall portion 66 and the second inner circumferential wall portion 76 are the boundary between the inner space 12a and the outer space 12b. The first inner circumferential wall portion 66 and the second inner circumferential wall portion 76 are preferably close together, and may be in contact with each other, as long as the introduction-side switching member 60 is rotatable. The introduction-side cover 70 extends toward the introduction-side switching member 60 and has a cylindrical third inner circumferential wall portion 78 surrounded by the second inner circumferential wall portion 76.

[0037] (Outer wall 67, 77) The introduction-side switching member 60 has a cylindrical first outer peripheral wall portion 67 that extends from its periphery toward the introduction-side cover 70. The first outer peripheral wall portion 67 surrounds the first inner peripheral wall portion 66. The introduction-side cover 70 has a cylindrical second outer peripheral wall portion 77 that extends from its periphery toward the introduction-side switching member 60. The second outer peripheral wall portion 77 is located radially outward from the first outer peripheral wall portion 67.

[0038] The first outer peripheral wall portion 67 and the second outer peripheral wall portion 77 are located on the outer periphery of the outer space 12b. The first outer peripheral wall portion 67 and the second outer peripheral wall portion 77 overlap radially (preferably close to each other, but may be in contact, as long as the introduction-side switching member 60 is rotatable). The tip 77a of the second outer peripheral wall portion 77 is assembled into the hole 28a of the top cover 28.

[0039] The gap between the first inner circumferential wall portion 66 and the second inner circumferential wall portion 76 is sealed by a sealing member 68. The gap between the first outer circumferential wall portion 67 and the second outer circumferential wall portion 77 is sealed by a sealing member 69.

[0040] (Discharge side switching member 80) Refer to Figures 2, 9, 10, and 11. The discharge section 13 is equipped with a discharge-side switching member 80 that rotates together with the rotating cylinder 40 to simultaneously open and close the downstream ends 46b to 49b of each of the flow paths 46 to 49, thereby simultaneously switching the modes of each of the flow paths 46 to 49. The discharge-side switching member 80 is a disc-shaped member centered on the rotational centerline CL and is formed along the hole 29a of the lower cover 29. The discharge-side switching member 80 is screwed to the lower rotating shaft 44.

[0041] (Discharge side lid 90) The discharge section 13 includes a discharge-side cover 90 which is assembled to the discharge-side switching member 80. The discharge-side switching member 80 is rotatable relative to the discharge-side cover 90 about the rotation center line CL of the rotating cylinder 40.

[0042] (Outer space 13b, inner space 13a) Refer to Figures 9 and 10A. The internal space (internal space of the discharge section 13) formed by the discharge-side switching member 80 and the discharge-side cover 90 has an annular outer space 13b centered on the rotational centerline CL of the rotating cylinder 40, and an inner space 13a inside the outer space 13b.

[0043] (Hole of discharge-side switching member 80) Refer to Figure 8C. The discharge-side switching member 80 has an internal switching member hole 81 that can communicate with the internal space 13a, and external switching member holes 82a and 82b that can communicate with the external space 13b. Each hole is arc-shaped.

[0044] (Hole in the discharge side cover 90) Refer to Figure 10B. The discharge side cover 90 has four internal holes 91 that can communicate with the inner space 13a and an external hole 92 that can communicate with the outer space 13b. An exhaust pipe 93 is provided in the internal holes 91.

[0045] (Inner peripheral wall 86, 96) Refer to Figures 9 and 10. The discharge-side switching member 80 has a cylindrical first inner circumferential wall portion 86 that extends toward the discharge-side lid 90. The discharge-side lid 90 has a cylindrical second inner circumferential wall portion 96 that extends toward the discharge-side switching member 80 and is combined with the first inner circumferential wall portion 86. The first inner circumferential wall portion 86 is located radially outward of the second inner circumferential wall portion 96.

[0046] The first inner circumferential wall portion 86 and the second inner circumferential wall portion 96 are the boundary between the inner space 13a and the outer space 13b. The first inner circumferential wall portion 86 and the second inner circumferential wall portion 96 are preferably close together and may be in contact with each other, as long as the discharge-side switching member 80 is rotatable.

[0047] (Outer wall 87, 97) The discharge-side switching member 80 has a cylindrical first outer peripheral wall portion 87 that extends from its periphery toward the discharge-side lid 90. The first outer peripheral wall portion 87 surrounds the first inner peripheral wall portion 86. The discharge-side lid 90 has a cylindrical second outer peripheral wall portion 97 that extends from its periphery toward the discharge-side switching member 80 and is combined with the first outer peripheral wall portion 87. The second outer peripheral wall portion 97 is located radially outward from the first outer peripheral wall portion 87.

[0048] The first outer peripheral wall portion 87 and the second outer peripheral wall portion 97 are located on the outer periphery of the outer space 13b. The first outer peripheral wall portion 87 and the second outer peripheral wall portion 97 are preferably close to each other, and may be in contact, as long as the discharge-side switching member 80 is rotatable. The tip 97a of the second outer peripheral wall portion 97 is assembled into the hole 29a of the lower cover 29.

[0049] The gap between the first inner circumferential wall portion 86 and the second inner circumferential wall portion 96 is sealed by a sealing member 88. The gap between the first outer circumferential wall portion 87 and the first outer circumferential wall portion 97 is sealed by a sealing member 99.

[0050] (mode) Refer to Figures 12 to 14. As corresponding to each column in the table shown in Figure 12A, the four flow paths 46 to 49 can cyclically switch between four mutually exclusive modes with respect to the rotation direction of the rotating cylinder 40.

[0051] The second channel 47 is in an adsorption mode where a mixed gas flows and specific components are adsorbed onto the adsorbent material 37. The fourth channel 49 is in a desorption mode where a heated gas flows and desorbs the specific components from the adsorbent material 37 that has adsorbed them in the adsorption mode.

[0052] The first channel 46 is in a preheating mode, where heated gas that has passed through the channel in the desorption mode flows through it to heat the adsorbent 37 and prepare it for the desorption mode. The third channel 48 is in a cooling mode, where a mixed gas flows through it after the desorption mode to cool the adsorbent 37 and prepare it for the adsorption mode.

[0053] The cooling mode may be designated as the first adsorption mode, and the adsorption mode as the second adsorption mode. Furthermore, adding another flow path will increase the number of flow paths in the third and fourth adsorption modes.

[0054] (Flow of heated gas) Refer to Figures 13A to 13C. The heated gas passes through the inner holes 71 of each lid and flows into the inner space 12a. The inner hole 61 of the switching member is connected to the upstream end 49a of the fourth flow path 49 (deactivation mode). The heated gas that has flowed into the inner space 12a passes through the inner hole 61 of the switching member and the upstream end 49a of the fourth flow path 49 and flows into the fourth flow path 49. In other words, the inner space 12a is in communication only with the fourth flow path 49 (deactivation mode) via the inner hole 61 of the switching member.

[0055] The inlet hole 41 of the rotating cylinder 40 overlaps with the first hole 55a of the outer cylinder 50. The heated gas that flows into the fourth flow path 49 passes through the adsorbent 37 and flows into the interior of the rotating cylinder 40 through the first hole 55a of the outer cylinder 50 and the inlet hole 41 of the rotating cylinder 40. The second hole 56a of the outer cylinder 50 is blocked by the rotating cylinder 40. The downstream end 49b of the fourth flow path 49 is blocked by the discharge side switching member 80.

[0056] The discharge hole 42 of the rotating cylinder 40 overlaps with the second hole 56b, which faces the first flow path 46 (preheat mode). The heated gas that flows into the rotating cylinder 40 passes through the discharge hole 42 and the second hole 56b and flows into the first flow path 46. The first hole 55b of the outer cylinder 50 is blocked by the rotating cylinder 40.

[0057] The inner bore 81 of the discharge-side switching member 80 is connected to the downstream end 46b of the first flow path 46. The heated gas that flows into the first flow path 46 passes through the adsorbent 37 and is discharged to the outside along with the desorbed specific components through the downstream end 46b of the first flow path 46, the inner bore 81 of the switching member 80, the inner space 13a, the inner bore 91 of the lid, and the exhaust pipe 93.

[0058] (Flow of mixed gas) Refer to Figures 14A to 14C. The mixed gas passes through the outer holes 72 of each lid and flows into the outer space 12b. The outer hole 62a of the switching member is connected to the upstream end 47a of the second flow path 47 (adsorption mode). The outer hole 62b of the switching member is connected to the upstream end 48a of the third flow path 48 (cooling mode). In other words, the outer space 12b communicates with the second flow path 47 (adsorption mode) via the inner hole 62a of the switching member, and with the third flow path 48 (cooling mode) via the inner hole 62b of the switching member.

[0059] The heated gas that flows into the outer space 12b passes through the outer hole 62a of the switching member and the upstream end 47a of the second flow path 47, and flows into the second flow path 47. Similarly, the heated gas that flows into the outer space 12b passes through the outer hole 62b of the switching member and the upstream end 48a of the third flow path 48, and flows into the third flow path 48.

[0060] The rotating cylinder 40 blocks the first holes 55c, 55d and the second holes 56c, 56d of the outer cylinder 50.

[0061] The outer hole 82a of the switching member is connected to the downstream end 47b of the second flow path 47. The heated gas that flows into the second flow path 47 passes through the adsorbent 37 and flows into the outer space 12b of the discharge section 13.

[0062] The outer hole 82b of the switching member is connected to the downstream end 48b of the third flow path 48. The heated gas that flows into the third flow path 48 passes through the adsorbent 37 and flows into the outer space 12b of the discharge section 13. The heated gas that flows into the outer space 12b of the discharge section 13 merges and is discharged to the outside from the outer hole 92 of the cover.

[0063] In this embodiment, as shown in Figure 13A, the heated gas passes through the internal holes 61 and 91 of the switching member, and as shown in Figure 13B, the mixed gas passes through the external holes 62a, 62b and 92 of the switching member. However, the heated gas and the mixed gas may be swapped (the position and number of holes should correspond to each mode).

[0064] (Effects of the example) Refer to Figures 2 to 4. The first gas separation and recovery device 10 is A rotatable cylindrical rotating cylinder 40, Arranged around the outer circumference of the rotating cylinder 40 are four flow paths 46-49 through which a mixed gas containing a specific component or a heated gas obtained by heating the mixed gas flows, Each of the flow paths 46 to 49 is provided with an adsorbent 37 capable of adsorbing specific components, Each of the channels 46-49 is, Adsorption mode where a mixed gas flows and adsorbs specific components. A desorption mode is in which heated gas flows, and specific components are desorbed from the adsorbent 37 that has adsorbed specific components in the adsorption mode. In the preheat mode, heated gas that has passed through the desorption mode channels 46-49 flows to heat the adsorbent 37 in preparation for the desorption mode, and After the desorption mode, a mixed gas flows to cool the adsorbent 37, and the system can switch to a cooling mode in preparation for the adsorption mode, circulating in the direction of rotation of the rotating cylinder 40. The rotating cylinder 40 is formed with an inlet 41 into which heated gas can be introduced into the interior of the rotating cylinder 40, and an outlet 42 into which the heated gas introduced through the inlet 41 can be discharged from the interior of the rotating cylinder 40. As the rotating cylinder 40 rotates and the inlet hole 41 faces the flow path 49 for the desorption mode, the discharge hole 42 faces the flow path 46 for the preheat mode.

[0065] The desorption mode channel 49 and the preheat mode channel 46 are connected via the inside of the rotating cylinder 40. When the rotating cylinder 40 is rotated 90 degrees clockwise, the desorption mode channel 49 and the preheat mode channel 46 are connected via the inside of the rotating cylinder 40. By rotating the rotating cylinder 40, the mode can be switched. Multiple tubes are not required; a single rotating cylinder 40 is sufficient. A gas separation and recovery device 10 with a simple configuration can be provided.

[0066] Alternatively, the outer circumference of the rotating cylinder 40 may be divided into three equal parts by the partition member 30, and the system may consist only of a flow path for the adsorption mode, a flow path for the desorption mode, and a flow path for the preheating mode. In this case, the circumferential positions of the holes 41 and 42 of the rotating cylinder 40 are also changed.

[0067] Refer to Figures 2 to 4. Secondly, in the first gas separation and recovery apparatus 10, It comprises an outer cylinder 50 having a rotating cylinder 40 inside, The outer cylinder 50 has four first holes 55a to 55d formed in the circumferential direction facing each of the flow paths 46 to 49, and four second holes 56a to 56d formed in the circumferential direction facing each of the flow paths 46 to 49. When the introduction hole 41 faces the flow path in desorption mode, it overlaps with only one of the four first holes 55a to 55d. When the discharge hole 42 faces the flow path in preheat mode, it overlaps with only one of the four second holes 56a to 56d. The proximal edge 31 of the partition member 30, which separates adjacent flow paths 46 to 49, is in contact with the outer circumferential surface 50a of the outer cylinder 50.

[0068] An outer cylinder 50 is provided to cover the rotating cylinder 40. The proximal edge 31 of the partition member 30 is in contact with the outer peripheral surface 50a of the outer cylinder 50, so that adjacent flow paths 46 to 49 can be reliably separated.

[0069] The inlet hole 41 overlaps with only one of the four first holes 55a to 55d, while the other holes are blocked by the rotating cylinder 40. Similarly, the discharge hole overlaps with only one of the four second holes 56a to 56d, while the other holes are blocked by the rotating cylinder 40. The outer cylinder 50 does not obstruct the mode switching by the rotating cylinder 40.

[0070] If there are three flow channels, three first holes should be formed in the circumferential direction, and three second holes should be formed in the circumferential direction.

[0071] Refer to Figures 3 and 13A. Thirdly, in the first gas separation and recovery apparatus 10, The introduction hole 41 of the rotating cylinder 40 is located downstream of the adsorbent 37 provided in the flow path 49 of the desorption mode. The discharge hole 42 of the rotating cylinder 40 is located upstream of the adsorbent 37 provided in the flow path 46 of the preheat mode. This can improve the efficiency of the desorption mode and preheating mode.

[0072] Refer to Figures 2, 8, and 11. Fourth, in any of the first to third gas separation and recovery devices 10, The system includes an introduction-side switching member 60 that rotates together with the rotating cylinder 40 to simultaneously open and close the upstream ends 46a to 49a of each of the flow paths 46 to 49, thereby simultaneously switching the mode of each of the flow paths 46 to 49.

[0073] If the main body 11 and the introduction section 12 were connected by a pipe, and the main body 11 and the discharge section 13 were connected by a pipe, then mode switching would be required for each section. On the other hand, in this embodiment, the rotating cylinder 40 and the introduction-side switching member 60 rotate simultaneously, allowing for simultaneous mode switching.

[0074] Refer to Figures 2, 10, and 11. Fifth, in the fourth gas separation and recovery apparatus 10, The system includes a discharge-side switching member 80 that rotates together with the rotating cylinder 40 to simultaneously open and close the downstream ends 46b to 49b of each of the flow paths 46 to 49, thereby simultaneously switching the mode of each of the flow paths 46 to 49.

[0075] Since the rotating cylinder 40, the inlet-side switching member 60, and the discharge-side switching member 80 rotate simultaneously, the discharge-side switching member 80 can also switch modes simultaneously.

[0076] Refer to Figures 7 and 8. Sixth, in the fourth gas separation and recovery apparatus 10, The introduction-side cover 70 is attached to the introduction-side switching member 60, The introduction-side switching member 60 is rotatable with respect to the introduction-side cover 70 about the rotation center line CL of the rotating cylinder 40. The internal space formed by the introduction-side switching member 60 and the introduction-side cover 70 has an annular outer space 12b centered on the rotational centerline CL of the rotating cylinder 40, and an inner space 12a inside the outer space 12b. The introduction-side cover 70 has an inner hole 71 that can communicate with the inner space 12a and an outer hole 72 that can communicate with the outer space 12b.

[0077] When the introduction-side switching member 60 rotates, the positions of the holes 61, 62a, and 62b for introducing gas into the flow paths 46 to 49, and the parts that block the flow paths 46 to 49, change. On the other hand, the introduction-side switching member 60 is rotatable relative to the introduction-side lid 70 around the rotation centerline CL of the rotating cylinder 40. That is, since the introduction-side lid 70 does not rotate, the positions of the inner hole 71 and the outer hole 72 of the lid do not change. This makes it easier to introduce gas into each of the flow paths 46 to 49. The internal space is formed into an outer space 12b and an inner space 12a, so that the mixed gas and the heated gas do not mix. Note that the inner space 12a may be cylindrical rather than annular. The discharge section 13 also has a similar effect.

[0078] Refer to Figure 7. Seventh, in the sixth gas separation and recovery apparatus 10, The introduction-side switching member 60 has a first inner circumferential wall portion 66 that extends toward the introduction-side cover 70, The introduction-side cover 70 has a second inner circumferential wall portion 76 that extends toward the introduction-side switching member 60 and is combined with the first inner circumferential wall portion 66. The first inner circumferential wall portion 66 and the second inner circumferential wall portion 76 are the boundary between the inner space 12a and the outer space 12b. The introduction-side switching member 60 has a first outer peripheral wall portion 67 that extends toward the introduction-side cover 70. The introduction-side cover 70 has a second outer peripheral wall portion 77 that extends toward the introduction-side switching member 60 and is combined with the first outer peripheral wall portion 67. The first outer perimeter wall 67 and the second outer perimeter wall 77 are located on the outer perimeter of the outer space 12b.

[0079] The first inner circumferential wall portion 66 and the second inner circumferential wall portion 76, which are interlocked in an alternating manner, separate the inner space 12a from the outer space 12b. Compared to a configuration in which only one of the first inner circumferential wall portion 66 or the second inner circumferential wall portion 76 is provided, the airtightness of the inner space 12a is higher.

[0080] Similarly, the first outer peripheral wall section 67 and the second outer peripheral wall section 77, which are interlocked in an alternating manner, are located on the outer perimeter of the outer space 12b. Compared to a configuration in which only one of the first outer peripheral wall section 67 or the second outer peripheral wall section 77 is provided, the airtightness of the outer space 12b is higher. The above effect also applies to the discharge section 13. [Explanation of Symbols]

[0081] 10...Gas separation and recovery device 12a...Inner space 12b...Outside space 30... Partition member 37…Adsorbent 40... Rotating cylinder 41…Inlet hole 42...Discharge hole 46-49...flow channel 50…Outer cylinder 55a~55d…1st hole 56a~56d…2nd hole 60... Switching component on the introduction side 61…Inner hole of switching member 62a, 62b… Outer hole of switching member 66…First inner peripheral wall portion 67…First peripheral wall portion 70…Import side cover 71…inner hole of the cover 72…Cover the outer hole 76…Second inner peripheral wall portion 77…Second peripheral wall portion

Claims

1. A rotatable cylindrical rotating cylinder, Arranged around the outer circumference of the rotating cylinder are at least three flow paths through which a mixed gas containing a specific component or a heated gas obtained by heating the mixed gas flows, Each of the aforementioned flow paths is provided with an adsorbent capable of adsorbing the aforementioned specific component, Each of the aforementioned flow paths is The aforementioned mixed gas flows and adsorbs the aforementioned specific component in an adsorption mode. A desorption mode is provided in which the heated gas flows to desorb the specific component from the adsorbent that has adsorbed the specific component in the adsorption mode, and The heated gas that has passed through the flow path in the desorption mode flows to heat the adsorbent and prepare the desorption mode, and the rotation direction of the rotating cylinder can be circulated and switched to a preheat mode. The rotating cylinder is provided with an inlet hole into which the heated gas can be introduced, and an outlet hole into which the heated gas introduced through the inlet hole can be discharged from the inside of the rotating cylinder. A gas separation and recovery device wherein, when the rotating cylinder rotates and the inlet hole faces the flow path in the desorption mode, the discharge hole faces the flow path in the preheat mode.

2. The outer cylinder comprises the aforementioned rotating cylinder inside, The outer cylinder has at least three first holes formed circumferentially and facing each of the aforementioned flow paths, and at least three second holes formed circumferentially and facing each of the aforementioned flow paths. The introduction hole, when facing the flow path in the desorption mode, overlaps with at least one of the three first holes. The discharge hole, when facing the flow path in the preheat mode, overlaps with only one of the at least three second holes. A partition member that separates adjacent flow paths is in contact with the outer surface of the outer cylinder. The gas separation and recovery apparatus according to claim 1.

3. The introduction hole of the rotating cylinder is located downstream of the adsorbent provided in the flow path of the desorption mode, The discharge hole of the rotating cylinder is located upstream of the adsorbent provided in the flow path of the preheat mode. The gas separation and recovery apparatus according to claim 1.

4. The system includes an introduction-side switching member that rotates together with the rotating cylinder to simultaneously open and close the upstream end of each of the flow paths, thereby simultaneously switching the mode of each of the flow paths. A gas separation and recovery apparatus according to any one of claims 1 to 3.

5. The system includes a discharge-side switching member that rotates together with the rotating cylinder to simultaneously open and close the downstream end of each of the flow paths, thereby simultaneously switching the mode of each flow path. The gas separation and recovery apparatus according to claim 4.

6. The introduction-side cover is assembled to the introduction-side switching member, The introduction-side switching member is rotatable with respect to the introduction-side lid, with respect to the rotation centerline of the rotating cylinder. The internal space formed by the introduction-side switching member and the introduction-side lid includes an annular outer space centered on the rotational centerline of the rotating cylinder, and an inner space inside the outer space. The aforementioned entry-side lid has an inner lid hole that can communicate with the inner space and an outer lid hole that can communicate with the outer space. The gas separation and recovery apparatus according to claim 4.

7. The introduction-side switching member has a first inner circumferential wall portion extending toward the introduction-side lid, The introduction-side cover has a second inner circumferential wall portion that extends toward the introduction-side switching member and is combined with the first inner circumferential wall portion. The first inner circumferential wall portion and the second inner circumferential wall portion are the boundary between the inner space and the outer space, The introduction-side switching member has a first outer peripheral wall portion that extends toward the introduction-side lid, The introduction-side cover has a second outer peripheral wall portion that extends toward the introduction-side switching member and is combined with the first outer peripheral wall portion. The first outer peripheral wall and the second outer peripheral wall are located on the outer periphery of the outer space. The gas separation and recovery apparatus according to claim 6.

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