Adsorption unit

Abstract

The present invention provides an adsorption unit that allows for easy maintenance of the internal housing section containing the adsorbent material. [Solution] The adsorption unit comprises a housing section (40) that forms an internal flow path (41) through which air flows, and an adsorption member (50) housed in the housing section (40) that adsorbs and desorbs carbon dioxide. An inlet (45) is formed on the first side surface (43) of the housing section (40) through which air flows into the internal flow path (41), and an outlet (46) is formed on the second side surface (44) of the housing section (40) through which air flows out of the internal flow path (41). The adsorption unit also includes a sheet-like screen member (90) that moves forward or backward in a predetermined operating direction on the first side surface (43) and the second side surface (44) so ​​as to open and close the inlet (45) and the outlet (46).

Description

Technical Field

[0001] The present disclosure relates to an adsorption unit.

Background Art

[0002] There is a carbon dioxide recovery system that adsorbs carbon dioxide in the air. The carbon dioxide recovery system described in Patent Document 1 has an adsorption plate on which an adsorbent is supported and a flow pipe that heats the adsorption plate. Carbon dioxide in the air is adsorbed by the adsorbent. The heating medium flowing through the flow pipe heats and regenerates the adsorbent on the adsorption plate. The carbon dioxide desorbed from the adsorbent is transported by a pump and stored.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] By the way, in a carbon dioxide recovery system having a housing portion in which an adsorbent is housed, when desorbing carbon dioxide from the adsorbent, the adsorbent is heated and the inside of the housing portion is evacuated and suctioned. Therefore, when adsorbing carbon dioxide to the adsorbent, air is circulated into the housing portion from the outside, and when desorbing carbon dioxide from the adsorbent, it is necessary to configure the housing portion so that the inside can maintain a vacuum state and the housing portion is sealed.

[0005] As described above, since it is necessary to switch the configuration of the housing portion between the case of desorbing carbon dioxide from the adsorbent and the case of adsorbing carbon dioxide to the adsorbent, if such a switching mechanism becomes complicated, the maintainability inside the housing portion will deteriorate.

[0006] The purpose of this disclosure is to provide an adsorption unit in which the housing section containing the adsorbent material can be easily maintained. [Means for solving the problem]

[0007] The first aspect includes a housing section (40) that forms an internal flow path (41) through which air flows, The facility comprises an adsorption member (50) housed in the aforementioned housing section (40) that adsorbs and desorbs carbon dioxide, An inlet (45) is formed on the first side surface (43) of the housing section (40) through which air flows into the internal flow path (41). An outlet (46) is formed on the second side surface (44) of the housing section (40) through which air flows out from the internal flow path (41). The suction unit has a sheet-like screen member (90) that moves forward or backward in a predetermined operating direction on the first side surface (43) and the second side surface (44) so ​​that the inlet (45) and the outlet (46) open and close.

[0008] In the first embodiment, the inlet (45) and outlet (46) can be easily switched open or closed by moving the sheet-like screen member (90) forward or backward in the direction of operation. Thus, since the suction unit in the first embodiment does not have a complicated mechanism for opening and closing the inlet (45) and outlet (46), maintenance work such as inspection, repair, and replacement of the inside of the housing (40) can be easily performed. In this way, the maintainability of the suction unit can be improved.

[0009] A second embodiment further comprises a control unit (C) that controls the operation of the screen member (90) in the first embodiment.

[0010] In the second embodiment, the screen member (90) can be operated automatically by the control unit (C), or the operation of the screen member (90) can be controlled by remote operation.

[0011] A third embodiment further comprises guide portions (110a, 110b) that guide the screen member (90) on the first side surface (43) and the second side surface (44) in the direction of operation, in the first or second embodiment.

[0012] In the third embodiment, the screen member (90) can be moved forward or backward in the operating direction along the guide portions (110a, 110b). This prevents the screen member (90) from moving forward or backward in a direction that deviates from the operating direction.

[0013] A fourth aspect is the third aspect, wherein the guide portions (110a, 110b) are a pair of plate members that extend in the direction of operation and face each other in a first direction perpendicular to the direction of operation.

[0014] In the fourth embodiment, since the guide portion (110a, 110b) is a plate member extending in the direction of movement, it can guide the screen member (90) in the direction of movement throughout the entire time the screen member (90) is moving forward and backward. The fifth embodiment further includes a pressing portion (120) that presses the screen member (90) toward the first side surface (43) and the second side surface (44) in any one of the first to fourth embodiments.

[0015] In the fifth embodiment, the pressing portion (120) can be used to make the screen member (90) adhere tightly to the first side surface (43) and the second side surface (44). This prevents the screen member (90) from lifting away from the first side surface (43) and the second side surface (44), and maintains airtightness within the housing portion (40) when the suction member (50) is regenerated.

[0016] The sixth aspect is the fifth aspect, wherein the pressing portion (120) has a first pressing portion (122) that presses both ends of the screen member (90) in a first direction perpendicular to the direction of movement as it moves or moves backward on the first side surface (43) and the second side surface (44).

[0017] In the sixth embodiment, the first pressing portion (122) can press both ends of the screen member (90) in a first direction perpendicular to the direction of operation.

[0018] The seventh aspect is, in the fifth aspect, the pressing portion (120) has a second pressing portion (123) that presses one end or the other end of the screen member (90) in the direction of operation when viewed from the front with the first side surface (43) or the second side surface (44).

[0019] In the seventh embodiment, the second pressing portion (123) can press down on one end or the other end of the screen member (90) in the direction of movement.

[0020] The eighth aspect is that in any one of the first to seventh aspects, the screen member (90) has a first screen member (90a) whose first side surface (43) moves forward and backward in the direction of operation, and a second screen member (90b) whose second side surface (44) moves forward and backward in the direction of operation. A first roll member (100a) that winds up and extrudes the first screen member (90a), The system further includes a second roll member (100b) for winding and extruding the second screen member (90b).

[0021] In the eighth aspect, the inlet (45) and outlet (46) are opened by winding up the first screen member (90a) and the second screen member (90b), and the inlet (45) and outlet (46) are closed by pushing out the first screen member (90a) and the second screen member (90b). In this way, the opening and closing of the inlet (45) and outlet (46) can be easily performed simply by rotating the first roll member (100a) and the second roll member (100b).

[0022] Aspect 9 is, in Aspect 8, a first operation of pushing out the first screen member (90a) and the second screen member (90b) so that the inlet (45) and the outlet are blocked, and a second operation of winding up the first screen member (90a) and the second screen member (90b) so that the inlet (45) and the outlet are opened, and further includes a control unit (C) that controls the first roll member (100a) and the second roll member (100b) to execute the above.

[0023] In Aspect 9, simply by executing the first operation and the second operation by the control unit (C), the opening and closing operations of the inlet (45) and the outlet (46) can be simplified.

[0024] Aspect 10 is an adsorption system having an adsorption unit according to any one of Aspects 1 to 9 and a decompression device (72) that decompresses the housing portion (40) when the inlet (45) and the outlet (46) are in a closed state.

[0025] In Aspect 10, a system having an adsorption unit and a decompression device can be provided. As a result, there is no need to separately purchase only the decompression device (72).

Brief Description of Drawings

[0026] [Figure 1] FIG. 1 is a schematic configuration diagram showing the overall configuration of the adsorption system in the embodiment. [Figure 2] FIG. 2 is a schematic configuration diagram of the refrigerant circuit. [Figure 3] FIG. 3 is a block diagram showing the relationship between the control unit and various devices. [Figure 4] FIG. 4 is a three-dimensional perspective view showing the external configuration of the adsorption unit. [Figure 5A] FIG. 5A is a diagram showing the front state of the first side plate and the second side plate when the inlet and the outlet are open. [Figure 5B] FIG. 5B is a diagram showing the front state of the first side plate and the second side plate when the inlet and the outlet are closed. [Figure 6A] Figure 6A is a schematic horizontal cross-sectional view of the suction unit showing the state of the guide section after the release operation by the side retaining section. [Figure 6B] Figure 6B is a horizontal cross-sectional view of the suction unit, schematically showing the state of the guide section after the holding operation by the side pressing section. [Figure 7A] Figure 7A is a schematic, partially enlarged view of the suction unit, seen from the left and right directions, showing the state of the bar member after the release operation by the upper pressing part. [Figure 7B] Figure 7B is a schematic, partially enlarged view of the suction unit, seen from the left and right directions, showing the state of the bar member after the holding operation by the upper pressing part. [Figure 8] Figure 8 is a configuration diagram corresponding to Figure 1, showing the state of the adsorption system when the first operation was performed. [Figure 9] Figure 9 is a configuration diagram corresponding to Figure 1, showing the state of the adsorption system when the second operation was performed. [Figure 10] Figure 10 shows the flow diagram when the control unit performs the first operation. [Figure 11] Figure 11 shows the flow when the control unit performs the second operation. [Modes for carrying out the invention]

[0027] The embodiments of this disclosure will be described in detail below with reference to the drawings. This disclosure is not limited to the embodiments shown below, and various modifications are possible without departing from the technical idea of ​​this disclosure. Since the drawings are for conceptual explanation of this disclosure, dimensions, ratios, or numbers may be exaggerated or simplified as necessary for ease of understanding. The terms "front," "rear," "up," "down," "right," and "left" below refer to the directions shown in the drawings unless otherwise specified. Specifically, the directions shown in the drawings refer to the directions when the inlet (45), described later, is considered "front" and the outlet (46) is considered "rear."

[0028] (1) Overall structure An embodiment of the present disclosure is an adsorption system (1). The adsorption system (1) in this example adsorbs carbon dioxide from the air. The adsorption system (1) in this example constitutes a DAC (Direct Air Capture) system that directly separates and collects carbon dioxide from the outdoor air.

[0029] As shown in Figure 1, the adsorption system (1) comprises an adsorption device (10), a recovery unit (70), and a water supply unit (80). The adsorption device (10) includes a refrigerant circuit (11), an outer casing (30), an inner casing (40), a fan (26), and an adsorption member (50).

[0030] (2) Adsorption device As shown in Figure 1, the adsorption device (10) has multiple adsorption units, namely a first adsorption unit (U1) and a second adsorption unit (U2). Since the configuration of the first adsorption unit (U1) and the second adsorption unit (U2) is basically the same, they are sometimes collectively referred to as the adsorption unit (U). As shown in Figure 2, the adsorption device (10) has a refrigerant circuit (11).

[0031] (2-1) Refrigerant circuit The refrigerant circuit (11) circulates the refrigerant to perform the refrigeration cycle. As shown in Figure 2, the refrigerant circuit (11) includes a compressor (21), a first radiator (60A), a second radiator (60B), a first expansion valve (22a), a second expansion valve (22b), a first evaporator (23A), and a second evaporator (23B). The first radiator (60A) and the second radiator (60B) have the same basic structure, so they are sometimes collectively referred to as the radiator (60). The first evaporator (23A) and the second evaporator (23B) have the same basic structure, so they are sometimes collectively referred to as the evaporator (23).

[0032] The compressor (21) draws in refrigerant and discharges compressed refrigerant. The discharge side of the compressor (21) branches into a first discharge side passage (13a) and a second discharge side passage (13b). The first discharge side passage (13a) is provided with a first heat sink (60A), and the second discharge side passage (13b) is provided with a second heat sink (60B). The heat sink (60) is an air heat exchanger that exchanges heat between the refrigerant and air. In the heat sink (60), the refrigerant condenses as it releases heat into the air.

[0033] The outlet end of the first discharge channel (13a) and the outlet end of the second discharge channel (13b) are connected to the liquid channel (14). The first expansion valve (22a) is provided in the first discharge channel (13a). The first expansion valve (22a) is positioned downstream of the first radiator (60A) in the direction of refrigerant flow. The second expansion valve (22b) is provided in the second discharge channel (13b). The second expansion valve (22b) is positioned downstream of the second radiator (60B) in the direction of refrigerant flow. The first expansion valve (22a) and the second expansion valve (22b) are composed of, for example, electronic expansion valves.

[0034] The outlet side of the liquid flow path (14) branches into a first suction flow path (15a) and a second suction flow path (15b). The outlet end of the first suction flow path (15a) and the outlet end of the second suction flow path (15b) are connected to the suction side of the compressor (21). The first suction flow path (15a) is provided with a first evaporator (23A), and the second suction flow path (15b) is provided with a second evaporator (23B). The evaporator (23) is an air heat exchanger that exchanges heat between the refrigerant and the air. The evaporator (23) evaporates when the refrigerant absorbs heat from the air.

[0035] In the first discharge-side flow path (13a), a first discharge-side control valve (24a) is provided upstream of the first heat sink (60A), and in the second discharge-side flow path (13b), a second discharge-side control valve (24b) is provided upstream of the second heat sink (60B). In the first suction-side flow path (15a), a first suction-side control valve (25a) is provided upstream of the first evaporator (23A), and in the second suction-side flow path (15b), a second suction-side control valve (25b) is provided upstream of the second evaporator (23B). These control valves (24a, 24b, 25a, 25b) are composed of on-off valves such as electromagnetic on-off valves, but they may also be flow control valves.

[0036] (2-2) Adsorption Unit As shown in Figure 1, the first adsorption unit (U1) has a first heat sink (60A), a first evaporator (23A), a first adsorption member (50A), and a first fan (26A). The second adsorption unit (U2) has a second heat sink (60B), a second evaporator (23B), a second adsorption member (50B), and a second fan (26B). Since the basic structure of the first adsorption member (50A) and the second adsorption member (50B) is the same, they are sometimes collectively referred to as the adsorption member (50). Since the basic structure of the first fan (26A) and the second fan (26B) is the same, they are sometimes collectively referred to as the fan (26). Each adsorption unit (U) has an outer casing (30) and an inner casing (40), respectively.

[0037] (2-2-1) Outer casing The outer casing (30) forms an air passage (31) through which air flows. In this embodiment, the air passage (31) communicates with the outdoor space, so outdoor air flows through the air passage (31). The outer casing (30) has an inlet (32) and an outlet (33). The inlet (32) is formed at the upstream end of the air passage (31), and the outlet (33) is formed at the outflow end of the air passage (31). In other words, the air passage (31) is formed from the inlet (32) to the outlet (33).

[0038] (2-2-2) Inner casing The inner casing (40) is an example of the housing section (40). The inner casing (40) forms an internal flow path (41) inside it. The internal flow path (41) houses a heat sink (60) and an adsorption member (50). The internal flow path (41) constitutes a depressurized space that can be depressurized. The inner casing (40) is formed in a hollow shape with the airflow direction being the shorter side. The inner casing (40) has a cylindrical body (42), a first side plate (43) formed on the upstream side of the airflow in the body (42), and a second side plate (44) formed on the downstream side of the airflow in the body (42).

[0039] An inlet (45) is formed in the first side plate (43) through which air flows from the air passage (31) into the internal passage (41). The inlet (45) is formed over almost the entire area of ​​the first side plate (43). The first side plate (43) is a frame-shaped member. The inlet (45) connects the space upstream of the inner casing (40) in the air passage (31) with the internal passage (41).

[0040] An outlet (46) is formed in the second side plate (44) through which air flows from the internal passage (41) to the air passage (31). The outlet (46) is formed over almost the entire area of ​​the second side plate (44). The second side plate (44) is a frame-shaped member. The outlet (46) connects the space downstream of the inner casing (40) in the air passage (31) with the internal passage (41).

[0041] (2-2-3) Fan The fan (26) is positioned in the air passage (31). The fan (26) transports the air so that it passes through the evaporator (23), the heat sink (60), and the adsorption member (50).

[0042] (2-2-4) Adsorption Member The adsorption member (50) adsorbs carbon dioxide from the air. The adsorption member (50) has an adsorbent that adsorbs carbon dioxide. In this embodiment, the adsorption member (50) is constructed by supporting an adsorbent on the surface of a substrate. The substrate is, for example, a ceramic material. The adsorption member (50) is housed in an inner casing (40).

[0043] Adsorbents have the property of adsorbing carbon dioxide. More precisely, adsorbents have the property that carbon dioxide is more easily desorbed as the temperature of the adsorbent increases, and more easily adsorbed as the temperature of the adsorbent decreases. Here, "adsorption" includes not only carbon dioxide being attracted to the surface of a solid or liquid, but also being absorbed into the interior of the solid or liquid. Furthermore, "adsorption" includes not only physical adsorption but also chemical adsorption. Adsorbents are composed of a liquid membrane.

[0044] As shown in Figures 1 and 2, the first adsorption member (50A) is positioned near the first heat sink (60A). The second adsorption member (50B) is positioned near the second heat sink (60B). In this embodiment, the first adsorption member (50A) is in contact with the first heat sink (60A), and the second adsorption member (50B) is in contact with the second heat sink (60B).

[0045] (2-2-5) Arrangement of each element in the airflow channel As shown in Figure 1, the evaporator (23), heat sink (60), and adsorption member (50) are arranged in order in the air passage (31). More precisely, the evaporator (23), heat sink (60), and adsorption member (50) are arranged in order in the air passage (31) from the upstream side to the downstream side of the airflow.

[0046] More specifically, the air passage (31) has an evaporator (23), a heat sink (60), an adsorption member (50), and a fan (26) arranged in that order. More precisely, the air passage (31) has an evaporator (23), a heat sink (60), an adsorption member (50), and a fan (26) arranged in that order from the upstream side to the downstream side of the airflow.

[0047] (3) Recovery Unit The recovery unit (70) sends the carbon dioxide detached from the adsorption member (50) to a predetermined target. The target consists of a storage section for storing carbon dioxide, a decomposition section for decomposing carbon dioxide, or a utilization section for using carbon dioxide. The recovery unit (70) has a recovery channel (71) and a pump (72).

[0048] The recovery channel (71) is a channel for transporting carbon dioxide desorbed from the adsorption member (50) to the target. The recovery channel (71) has a first suction channel (73), a second suction channel (74), and a main channel (75). The inlet end of the first suction channel (73) is connected to the first adsorption unit (U1) and communicates with the internal channel (41) of the first adsorption unit (U1). The inlet end of the second suction channel (74) is connected to the second adsorption unit (U2) and communicates with the internal channel (41) of the second adsorption unit (U2). The inlet end of the main channel (75) is connected to the outlet end of the first suction channel (73) and the outlet end of the second suction channel (74). The other end of the main channel (75) is connected to the target side.

[0049] The pump (72) is installed in the main flow path (75). The pump (72) transports carbon dioxide from the recovery flow path (71). The pump (72) constitutes a depressurization device that reduces the pressure in the internal flow path (41).

[0050] A first suction valve (76a) is provided in the first suction passage (73), and a second suction valve (76b) is provided in the second suction passage (74). The first suction valve (76a) and the second suction valve (76b) are composed of on-off valves such as electromagnetic on-off valves, but they may also be flow control valves.

[0051] (4) Water supply unit The water supply unit (80) supplies the generated water vapor to the internal flow path (41) of the adsorption unit (U). The water supply unit (80) includes a supply path (81), a water tank (82), and a heating section (83).

[0052] The supply channel (81) includes a main supply channel (84), a first inlet channel (85), and a second inlet channel (86). The inlet end of the main supply channel (84) is connected to the top of the water tank (82). The inlet ends of the first inlet channel (85) and the second inlet channel (86) are connected to the outlet end of the main supply channel (84). The outlet end of the first inlet channel (85) is connected to the first adsorption unit (U1) and communicates with the internal flow path (41) of the first adsorption unit (U1). The outlet end of the second inlet channel (86) is connected to the second adsorption unit (U2) and communicates with the internal flow path (41) of the second adsorption unit (U2).

[0053] A first inlet valve (87a) is provided in the first inlet passage (85), and a second inlet valve (87b) is provided in the second inlet passage (86). The first inlet valve (87a) and the second inlet valve (87b) are composed of on-off valves such as electromagnetic on-off valves, but they may also be flow control valves.

[0054] The water tank (82) is a container for generating steam. Water from a water source is supplied to the inside of the water tank (82). The heating unit (83) is located inside the water tank (82). The heating unit (83) generates steam by heating the water in the water tank (82). The steam generated in the water tank (82) is supplied to the adsorption unit (U) via the supply passage (81). The heating unit (83) is connected to the refrigerant circuit (11) and may be a heat exchanger through which high-pressure refrigerant flows, or it may be another heat source such as an electric heater.

[0055] (5) Control Unit As shown in Figure 3, the suction system (1) has a control unit (C). The control unit (C) is wirelessly or wiredly connected to various devices of the suction system (1). The control unit (C) includes an MCU (Micro Control Unit), electrical circuits, and electronic circuits. The MCU includes a CPU (Central Processing Unit), memory, and a communication interface. The memory stores various programs for the CPU to execute.

[0056] The control unit (C) controls the operation of various devices provided in the adsorption system (1). For example, the control unit (C) controls devices connected to the refrigerant circuit (11), such as the compressor (21), the first expansion valve (22a), and the second expansion valve (22b). The control unit (C) also controls the operation of the screen member (90) and the retaining part (120), which will be described later.

[0057] (6) Detailed structure of the adsorption unit The suction unit (U) includes an inner casing (40), a suction member (50), a screen member (90), roll members (100a, 100b), guide parts (110a, 110b), and a pressing part (120).

[0058] (6-1) Inner casing As shown in Figures 1, 4, and 5, the inner casing (40) has a cylindrical body (42), a first side plate (43) formed on the upstream side of the airflow in the body (42), and a second side plate (44) formed on the downstream side of the airflow in the body (42).

[0059] The first side plate (43) forms the side surface of the inner casing (40). An inlet (45) is formed in the first side plate (43) through which air flows from the air passage (31) into the internal passage (41). The inlet (45) is formed over almost the entire area of ​​the first side plate (43). The first side plate (43) is a frame-shaped member. The inlet (45) is located at the upstream end of the internal passage (41).

[0060] Specifically, the first side plate (43) has a first frame member (43a) formed in the shape of a rectangular frame and a lattice-shaped first support member (43b) fixed to the inner frame of the first frame member (43a). The space inside the first frame member (43a) constitutes an inlet (45). The first support member (43b) supports a first screen member (90a) that moves vertically along the frame surface of the first frame member (43a).

[0061] The second side plate (44) forms the side surface of the inner casing (40). An outlet (46) is formed in the second side plate (44) through which air flows from the internal flow path (41) to the air flow path (31). The outlet (46) is formed over almost the entire area of ​​the second side plate (44). The second side plate (44) is a frame-shaped member. The outlet (46) is located at the downstream end of the internal flow path (41).

[0062] Specifically, the second side plate (44) has a second frame member (44a) formed in the shape of a rectangular frame and a lattice-shaped second support member (44b) fixed to the inner frame of the second frame member (44a). The space inside the second frame member (44a) constitutes an inlet (45). The second support member (44b) supports a second screen member (90b) that moves vertically along the frame surface of the second frame member (44a).

[0063] In the following description, the rectangular surface of the first frame member (43a) when viewed from the front (i.e., when the first frame member (43a) is viewed from the upstream side of the airflow) may be referred to as the front surface of the first frame member (43a). The rectangular surface of the second frame member (44a) when viewed from the front (i.e., when the second frame member (44a) is viewed from the downstream side of the airflow) may be referred to as the front surface of the second frame member (44a). The front surfaces of each frame member (43a, 44a) are also the frame surfaces described above. Of the front surfaces of each frame member (43a, 44a), the left portion extending in the vertical direction may be referred to as the left planar section (47a), the right portion extending in the vertical direction may be referred to as the right planar section (47b), the upper portion extending in the horizontal direction may be referred to as the upper planar section (47c), and the lower portion extending in the horizontal direction may be referred to as the lower planar section (47d).

[0064] (6-2) Screen component The screen member (90) is a sheet-like member that moves vertically or backward on the first side surface (43) and the second side surface (44) so ​​that the inlet (45) and outlet (46) open and close.

[0065] Specifically, the screen member (90) has a first screen member (90a) and a second screen member (90b). The first screen member (90a) moves up and down on the first side surface (43) to open and close the inlet (45) on the first side surface (43). The second screen member (90b) moves up and down on the second side surface (44) to open and close the outlet (46) on the second side surface (44). Each of the first screen member (90a) and the second screen member (90b) is formed in the shape of a strip-shaped rectangle.

[0066] More specifically, the lower end of the first screen member (90a) in the longitudinal direction (vertical direction) moves downward along the front surface of the first frame member (43a) and recedes upward. At this time, the right end of the first screen member (90a) in the width direction (left-right direction) moves vertically so that it comes into contact with the right planar portion (47b) of the first frame member (43a), and the left end comes into contact with the left planar portion (47a). Similarly, the lower end of the second screen member (90b) in the longitudinal direction (vertical direction) moves downward along the front surface of the second frame member (44a) and recedes upward.

[0067] When the lower ends of the first screen member (90a) and the second screen member (90b) are located on the upper flat surface (47c), the inlet (45) and outlet (46) are open (Figure 5A). When the lower ends of the first screen member (90a) and the second screen member (90b) are located on the lower flat surface (47d), the inlet (45) and outlet (46) are closed (Figure 5B).

[0068] While the first screen member (90a) and the second screen member (90b) are moving, the right end of the second screen member (90b) in the width direction (left-right direction) comes into contact with the right planar portion (47b) of the second frame member (44a), and the left end comes into contact with the left planar portion (47a) as it moves vertically.

[0069] (6-3) Roll member The roll members (100a, 100b) are cylindrical members that wind up and extrude the screen member (90). The roll members (100a, 100b) consist of a first roll member (100a) and a second roll member (100b). The first roll member (100a) winds up and extrudes the first screen member (90a). The second roll member (100b) winds up and extrudes the second screen member (90b).

[0070] Specifically, the first roll member (100a) extends in the left-right direction along the upper flat portion (47c) of the first frame member (43a). The first roll member (100a) has a rotation axis (not shown). The rotation axis extends in the longitudinal direction of the first roll member (100a). The rotation of the first roll member (100a) is controlled by a motor (not shown) that drives the rotation axis, and the rotation direction and rotation speed of the first roll member (100a) are controlled by a control unit (C). One end of the first screen member (90a) in the longitudinal direction is fixed to the first roll member (100a). Here, the one end of the first screen member (90a) in the longitudinal direction is the upper end of the first screen member (90a). The first roll member (100a) performs a first operation in which it pushes out the first screen member (90a) so that the inlet (45) of the first side plate (43) is closed. The first roll member (100a) performs a second operation in which it winds up the first screen member (90a) so that the inlet (45) of the first side plate (43) is opened.

[0071] The second roll member (100b) extends in the left-right direction along the upper flat surface (47c) of the second frame member (44a). The second roll member (100b) has a rotation axis (not shown). The rotation axis extends in the longitudinal direction of the second roll member (100b). The rotation of the second roll member (100b) is controlled by a motor (not shown) that drives the rotation axis, and the rotation direction and rotation speed of the second roll member (100b) are controlled by a control unit (C). One longitudinal end of the second screen member (90b) is fixed to the second roll member (100b). Here, the longitudinal end of the second screen member (90b) is the upper end of the second screen member (90b). The second roll member (100b) performs a first operation in which it pushes out the second screen member (90b) so that the inlet (45) of the second side plate (44) is closed. The second roll member (100b) performs a second operation in which it winds up the second screen member (90b) so that the inlet (45) of the second side plate (44) is opened. The first and second operations of the first roll member (100a) and the second roll member (100b), respectively, are controlled by the control unit (C).

[0072] (6-4) Guide section The guide sections (110a, 110b) guide the screen members (90) on the first side plate (43) and the second side plate (44) in the vertical direction. In other words, the guide sections (110a, 110b) guide the screen members (90) on the front surface of the first frame member (43a) in the vertical direction, and also guide the screen members (90) on the front surface of the second frame member (44a) in the vertical direction. The guide sections (110a, 110b) are a pair of plate members that extend in the vertical direction and face each other in the left-right direction. The plate members are formed in an elongated shape that extends in the vertical direction and are provided on the left planar portion (47a) and the right planar portion (47b) of the first frame member (43a). The plate members have an L-shaped cross-section perpendicular to the longitudinal direction. The plate members are arranged to face the front of each frame member (43a, 44a) and the side of the main body (see Figure 6). The left-right direction is perpendicular to the up-down direction and is the first direction of this disclosure. The guide portions (110a, 110b) have a first guide portion (110a) and a second guide portion (110b).

[0073] The first guide portion (110a) guides the first screen member (90a) on the first side plate (43) in the vertical direction. Specifically, the first guide portion (110a) guides the first screen member (90a) in the vertical direction so that its lower end does not shift in the horizontal direction while it is moving on the front surface of the first frame member (43a). In addition, the first guide portion (110a) prevents the first screen member (90a) from separating from the front surface of the first frame member (43a) when its lower end moves on the front surface of the first frame member (43a).

[0074] The first guide portion (110a) is positioned such that gaps are formed between the plate member and the left planar portion (47a), and between the plate member and the right planar portion (47b). The widthwise (left-right) end of the first screen member (90a) is inserted into these gaps (see Figure 6A). When the first screen member (90a) moves forward or backward on the first frame member (43a), the left end of the first screen member (90a) moves vertically so as to follow the gap between the plate member and the left planar portion (47a), and the right end of the first screen member (90a) moves vertically so as to follow the gap between the plate member and the right planar portion (47b).

[0075] The second guide portion (110b) guides the second screen member (90b) on the second side plate (44) in the vertical direction. Specifically, the second guide portion (110b) guides the second screen member (90b) in the vertical direction so that its lower end does not shift in the horizontal direction while it is moving on the front surface of the second frame member (44a). In addition, the second guide portion (110b) prevents the second screen member (90b) from separating from the front surface of the second frame member (44a) when its lower end is moving on the front surface of the second frame member (44a).

[0076] The second guide portion (110b) is positioned such that gaps are formed between the plate member and the left planar portion (47a), and between the plate member and the right planar portion (47b). The widthwise (left-right) end of the second screen member (90b) is inserted into these gaps (see Figure 6A). When the second screen member (90b) moves forward or backward on the second frame member (44a), the left end of the second screen member (90b) moves vertically so as to follow the gap between the plate member and the left planar portion (47a), and the right end of the second screen member (90b) moves vertically so as to follow the gap between the plate member and the right planar portion (47b).

[0077] (6-5) Pressing part The retaining part (120) switches the internal flow path (41) of the inner casing (40) between a sealed space and an open space. Specifically, the retaining part (120) presses the first screen member (90a) against the front surface of the first frame member (43a) and presses the second screen member (90b) against the front surface of the second frame member (44a). In this way, the first screen member (90a) closes the inlet (45) and the second screen member (90b) closes the outlet (46), resulting in the inlet (45) and outlet (46) being closed, and thus the inside of the internal flow path (41) becoming a sealed space.

[0078] The operation in which the retaining part (120) presses the screen member (90) against the front surface of the frame members (43a, 44a) is called the holding operation, and the operation in which the screen member (90) that has been pressed against the front surface of the frame members (43a, 44a) is released is called the release operation.

[0079] During the holding operation, the pressing portion (120) approaches the front surface of the frame members (43a, 44a), and the screen member (90) is gripped by the pressing portion (120) and the frame members (43a, 44a). As a result, the internal flow path (41) becomes a sealed space. During the opening operation, the pressing portion (120) moves away from the front surface of the frame members (43a, 44a), and the screen member (90) is released from the pressing portion (120) and the frame members (43a, 44a). As a result, the internal flow path (41) becomes an open space.

[0080] In this embodiment, during the holding operation, the retaining portion (120) approaches the front surface of the first frame member (43a) and the front surface of the second frame member (44a). During the release operation, the retaining portion (120) moves away from the front surface of the first frame member (43a) and the front surface of the second frame member (44a).

[0081] As shown in Figures 5, 6, and 7, the retaining portion (120) has a side retaining portion (122) and an upper retaining portion (123). The side retaining portion (122) is an example of the first retaining portion (122) of this disclosure. The upper retaining portion (123) is an example of the second retaining portion (123) of this disclosure.

[0082] As shown in Figures 5 and 6, the side retaining portion (122) has guide portions (110a, 110b). In other words, the guide portions (110a, 110b) have a guiding function for guiding the screen member (90) and a retaining function for holding down the screen member (90).

[0083] The holding action of the side retaining portion (122) holds the first screen member (90a) between the first guide portion (110a) and the right planar portion (47b) of the first frame member (43a), and also between the first guide portion (110a) and the left planar portion (47a) of the first frame member (43a). Similarly, the second screen member (90b) is held between the second guide portion (110b) and the right planar portion (47b) of the second frame member (44a), and also between the second guide portion (110b) and the left planar portion (47a) of the second frame member (44a) (see Figure 6B).

[0084] When the side retaining portion (122) is opened, the first screen member (90a) is released from the first guide portion (110a) and the first frame member (43a), and the second screen member (90b) is released from the second guide portion (110b) and the second frame member (44a) (see Figure 6A).

[0085] As shown in Figures 5 and 7, the upper retaining portion (123) has bar members (124a, 124b). The bar members (124a, 124b) have a first bar (124a) and a second bar (124b). The first bar (124a) and the second bar (124b) are each formed in a cylindrical shape. The first bar (124a) extends along the longitudinal direction of the upper flat portion (47c) of the first frame member (43a). The first bar (124a) is positioned spaced apart from the upper flat portion (47c) of the first frame member (43a). A first screen member (90a) is inserted into the gap formed between the first bar (124a) and the upper flat portion (47c). The second bar (124b) extends along the longitudinal direction of the upper flat portion (47c) of the second frame member (44a). The second bar (124b) is positioned spaced apart from the upper flat surface (47c) of the second frame member (44a). The second screen member (90b) is inserted into the gap formed between the second bar (124b) and the upper flat surface (47c).

[0086] The upper retaining portion (123) holds the first screen member (90a) between the first bar (124a) and the upper flat surface (47c) of the first frame member (43a). The second screen member (90b) is similarly held between the second bar (124b) and the upper flat surface (47c) of the second frame member (44a) (Figure 7B).

[0087] When the upper retaining portion (123) is opened, the first screen member (90a) is released from the first bar (124a) and the first frame member (43a), and the second screen member (90b) is released from the second bar (124b) and the second frame member (44a) (Figure 7A).

[0088] (7) Operating The operation of the adsorption system (1) will now be described. The adsorption system (1) alternates between a first operation and a second operation. In the first operation, the first adsorption unit (U1) performs a regeneration operation while the second adsorption unit (U2) performs an adsorption operation. In the second operation, the first adsorption unit (U1) performs an adsorption operation while the second adsorption unit (U2) performs a regeneration operation. The first adsorption unit (U1) and the second adsorption unit (U2) repeatedly alternate between adsorption and regeneration operations.

[0089] (7-1) First operation In the first operation shown in Figure 8, the first fan (26A) is stopped, and the second fan (26B), compressor (21), pump (72), and heating unit (83) are in operation. The inlet (45) and outlet (46) of the first adsorption unit (U1) are closed, and the inlet (45) and outlet (46) of the second adsorption unit (U2) are open. In the refrigerant circuit (11), the first discharge-side control valve (24a) and the second suction-side control valve (25b) are open, and the second discharge-side control valve (24b) and the first suction-side control valve (25a) are closed.

[0090] In the refrigerant circuit (11) during the first operation, a refrigeration cycle is carried out in which the refrigerant compressed by the compressor (21) dissipates heat in the first heat exchanger (60A), is depressurized by the first expansion valve (22a), and evaporates in the second evaporator (23B).

[0091] During the first operation, in the second adsorption unit (U2), outdoor air transported by the second fan (26B) passes through the second evaporator (23B). In the second evaporator (23B), heat exchange occurs between the air and the refrigerant, and the air is cooled. In the second evaporator (23B), the heat from the air is recovered as the heat of vaporization of the refrigerant. The air that has passed through the second evaporator (23B) flows through the internal flow path (41) and passes through the second adsorption member (50B). At this time, carbon dioxide in the air is adsorbed by the adsorbent of the second adsorption member (50B). The air that has passed through the second adsorption member (50B) is discharged into the outdoor space.

[0092] During the first operation, the first adsorption unit (U1) is heated by the first heat sink (60A) which heats the first adsorption member (50A). As a result, carbon dioxide is desorbed from the first adsorption member (50A). When the pump (72) is operated, the internal flow path (41) of the first adsorption unit (U1) becomes negative pressure. As a result, the desorption of carbon dioxide from the first adsorption member (50A) is accelerated.

[0093] In the water tank (82), water heated by the heating unit (83) turns into steam. The steam generated in the water tank (82) flows through the main supply passage (84) and the first introduction passage (85) and is supplied to the internal flow path (41) of the first adsorption unit (U1). The supply of steam around the first adsorption member (50A) promotes the desorption of carbon dioxide from the first adsorption member (50A).

[0094] The carbon dioxide detached from the first adsorption member (50A) flows through the first suction channel (73) and the main channel (75) and is supplied to the target.

[0095] (7-2) Second operation In the second operation shown in Figure 9, the second fan (26B) is stopped, and the first fan (26A), compressor (21), pump (72), and heating unit (83) are in operation. The inlet (45) and outlet (46) of the second adsorption unit (U2) are closed, and the inlet (45) and outlet (46) of the first adsorption unit (U1) are open. In the refrigerant circuit (11), the second discharge control valve (24b) and the first suction control valve (25a) are open, and the first discharge control valve (24a) and the second suction control valve (25b) are closed.

[0096] In the second operating refrigerant circuit (11), a refrigeration cycle is performed in which the refrigerant compressed by the compressor (21) dissipates heat in the second heat exchanger (60B), is depressurized by the second expansion valve (22b), and evaporates in the first evaporator (23A).

[0097] During the second operation, in the first adsorption unit (U1), outdoor air transported by the first fan (26A) passes through the first evaporator (23A). In the first evaporator (23A), heat exchange occurs between the air and the refrigerant, and the air is cooled. In the first evaporator (23A), the heat from the air is recovered as the heat of vaporization of the refrigerant. The air that has passed through the first evaporator (23A) flows through the internal flow path (41) and passes through the first adsorption member (50A). At this time, carbon dioxide in the air is adsorbed by the adsorbent of the first adsorption member (50A). The air that has passed through the first adsorption member (50A) is discharged into the outdoor space.

[0098] During the second operation, the second adsorption unit (U2) is heated by the second heat sink (60B) which heats the second adsorption member (50B). As a result, carbon dioxide is desorbed from the second adsorption member (50B). When the pump (72) is operated, the internal flow path (41) of the second adsorption unit (U2) becomes negative pressure. As a result, the desorption of carbon dioxide from the second adsorption member (50B) is accelerated.

[0099] In the water tank (82), water heated by the heating unit (83) turns into steam. The steam generated in the water tank (82) flows through the main supply passage (84) and the second introduction passage (86) and is supplied to the internal flow path (41) of the second adsorption unit (U2). The supply of steam around the second adsorption member (50B) promotes the desorption of carbon dioxide from the second adsorption member (50B).

[0100] The carbon dioxide detached from the second adsorption member (50B) flows through the second suction channel (74) and the main channel (75) and is supplied to the target.

[0101] (8) Operation of the suction unit The operation of the adsorption unit during regeneration and adsorption operations will be explained using flowcharts in Figures 10 and 11.

[0102] (8-1) Operation of the suction unit before regeneration In step S11, the control unit (C) performs a first operation. Specifically, the control unit (C) pushes out the first screen member (90a) and the second screen member (90b) by rotating the first roll member (100a) and the second roll member (100b). As a result, the lower end of the first screen member (90a) moves downward along the front surface of the first frame member (43a), and the lower end of the second screen member (90b) moves downward along the front surface of the second frame member (44a). At this time, the first screen member (90a) that has been fed out from the first roll member (100a) passes between the first bar (124a) and the upper flat surface (47c), and moves downward while being guided by the first guide part (110a). The second screen member (90b), fed out from the second roll member (100b), passes between the second bar (124b) and the upper flat surface (47c), and moves downward while being guided by the second guide section (110b).

[0103] In step S12, the control unit (C) determines whether the extrusion of the first screen member (90a) and the second screen member (90b) is complete. The extrusion of the first screen member (90a) and the second screen member (90b) is completed when the lower end of the first screen member (90a) reaches the lower plane portion (47d) of the first frame member (43a) and the lower end of the second screen member (90b) reaches the lower plane portion (47d) of the second frame member (44a). The control unit (C) may also determine, for example, whether the number of rotations of the first roll member (100a) and the second roll member (100b) has reached a number of rotations sufficient for the lower ends of the first screen member (90a) and the second screen member (90b) to reach the lower plane portion (47d). If it is determined that the extrusion of the first screen member (90a) and the second screen member (90b) is complete (YES in step S12), step S13 is executed. If it is determined that the extrusion of the first screen member (90a) and the second screen member (90b) is not complete (NO in step S12), step S12 is executed again.

[0104] In step S13, the control unit (C) stops the execution of the first operation. This stops the rotation of the first roll member (100a) and the second roll member (100b).

[0105] In step S14, the control unit (C) performs a holding operation. Specifically, the side retaining portion (122) and the upper retaining portion (123) each perform a holding operation. As a result, the first screen member (90a) closes the inlet (45) and the second screen member (90b) closes the outlet (46).

[0106] Subsequently, when the pump (72) is operated by the regeneration operation, the internal flow path (41) of the inner casing (40) is depressurized. At this time, the internal flow path (41) becomes negative pressure, and a force acts on the first screen member (90a) to pull it inward from the inlet (45) into the inner casing (40). However, because the first support member (43b) supports the first screen member (90a), the first screen member (90a) can close the inlet (45) without being pulled into the inner casing (40). The same applies to the second screen member (90b). As a result, deformation of the space in the internal flow path (41) is suppressed, and the depressurization operation of the internal flow path (41) can be continued.

[0107] (8-2) Operation of the suction unit before suction operation In step S21, the control unit (C) performs an opening operation. Specifically, the side retaining portion (122) and the upper retaining portion (123) each perform an opening operation. As a result, the first screen member (90a) separates from the front surface of the first frame member (43a), and the second screen member (90b) separates from the front surface of the second frame member (44a). The same applies to the second screen member (90b). As a result, the internal flow path (41) of the inner casing (40) becomes an open space.

[0108] In step S22, the control unit (C) performs a second operation. Specifically, the control unit (C) rotates the first roll member (100a) and the second roll member (100b) to wind up the first screen member (90a) and the second screen member (90b). As a result, the lower end of the first screen member (90a) retracts upward along the front surface of the first frame member (43a), and the lower end of the second screen member (90b) retracts upward along the front surface of the second frame member (44a). At this time, the lower end of the first screen member (90a) retracts upward while being guided by the first guide portion (110a). The lower end of the second screen member (90b) retracts upward while being guided by the second guide portion (110b).

[0109] In step S23, the control unit (C) determines whether the winding of the first screen member (90a) and the second screen member (90b) is complete. The winding of the first screen member (90a) and the second screen member (90b) is completed when the lower end of the first screen member (90a) reaches the upper flat portion (47c) of the first frame member (43a) and the lower end of the second screen member (90b) reaches the upper flat portion (47c) of the second frame member (44a). The control unit (C) may also determine, for example, whether the number of rotations of the first roll member (100a) and the second roll member (100b) has reached a number of rotations sufficient for the lower ends of the first screen member (90a) and the second screen member (90b) to reach the upper flat portion (47c). If it is determined that the winding of the first screen member (90a) and the second screen member (90b) is complete (YES in step S23), step S24 is executed. If it is determined that the winding of the first screen member (90a) and the second screen member (90b) is not complete (NO in step S23), step S23 is executed again.

[0110] In step S24, the control unit (C) cancels the execution of the second operation. As a result, the rotation of the first roll member (100a) and the second roll member (100b) stops.

[0111] (9) Characteristics (9-1) The suction unit (U) of this embodiment has a sheet-like screen member (90) that moves vertically or backward on the first side plate (43) and the second side plate (44) so ​​that the inlet (45) and outlet (46) provided on the inner casing (40) open and close.

[0112] According to this, the inlet (45) and outlet (46) can be switched between open and closed states by moving the screen member (90) vertically or backward. This simple opening and closing mechanism allows for easy suction and regeneration operations, and because the inlet (45) and outlet (46) can be easily opened and closed, maintenance such as inspection of the inside of the suction unit (U) and replacement of parts can be easily performed.

[0113] (9-2) The suction unit (U) of this embodiment has a control unit (C) that controls the operation of the screen member (90). In this way, the control unit (C) can automatically control the operation of the screen member (90).

[0114] (9-3) The suction unit (U) of this embodiment further includes guide portions (110a, 110b) that guide the screen member (90) on the first side plate (43) and the second side plate (44) in the vertical direction. Since the screen member (90) can be moved up or down along the guide portions (110a, 110b), it is possible to prevent the screen member (90) from shifting in the left or right direction. In addition, the guide portions (110a, 110b) can prevent the screen member (90) from separating from the surface of the first side plate (43) and the second side plate (44).

[0115] (9-4) In this embodiment, the suction unit (U) has guide sections (110a, 110b) which are a pair of plate members that extend vertically and are adjacent to each other in the left-right direction. By having the pair of plate members extend vertically, the screen member (90) can be guided vertically throughout its movement and retraction.

[0116] (9-5) The suction unit (U) of this embodiment further includes a pressing portion (120) that presses the screen member (90) toward the first side plate (43) and the second side plate (44).

[0117] This allows the screen member (90) to be held in close contact with the first side plate (43) and the second side plate (44) by the pressing portion (120). This prevents the screen member (90) from lifting away from the first side surface (43) and the second side surface (44), and ensures airtightness of the internal flow path (41) during the regeneration of the adsorption member (50).

[0118] (9-6) The retaining portion (120) of this embodiment has a first retaining portion (122) that holds down both left and right ends of the screen member (90) as it moves or moves back on the first side plate (43) and the second side plate (44). The first retaining portion (122) makes both ends in the width direction of the screen member (90) tightly attached to the edge portion of the suction port (32) of the first side plate (43) and the edge portion of the second side plate (44).

[0119] (9-7) The pressing portion (120) of this embodiment presses down on the upper end portion of the screen member (90) in the vertical direction when viewed from the front of the first side plate (43) or the second side plate (44). The second pressing portion (123) makes it possible to bring the upper end portion of the screen member (90) into close contact with the edge portion of the suction port (32) of the first side plate (43) and the edge portion of the second side plate (44).

[0120] (9-8) The screen member (90) of this embodiment has a first screen member (90a) that moves vertically and backward on a first side plate (43), and a second screen member (90b) that moves vertically and backward on a second side plate (44). The suction unit (U) further comprises a first roll member (100a) that winds up and pushes out the first screen member (90a), and a second roll member (100b) that winds up and pushes out the second screen member (90b).

[0121] According to this, the first screen member (90a) and the second screen member (90b) can be advanced and retracted simply by rotating the first roll member (100a) and the second roll member (100b), thus enabling easy opening and closing of the inlet (45) and outlet (46).

[0122] (9-9) The control unit (C) of this embodiment controls the first roll member (100a) and the second roll member (100b) to perform a first operation of pushing out the first screen member (90a) and the second screen member (90b) so that the inlet (45) and the outlet (46) are closed, and a second operation of winding up the first screen member (90a) and the second screen member (90b) so that the inlet (45) and the outlet (46) are opened.

[0123] By simply performing the first and second operations, the inlet (45) and outlet (46) can be opened and closed relatively easily.

[0124] (10) Other embodiments The above embodiments and modifications may also have the following configurations.

[0125] The second pressing portion (123) may be configured to grip the screen member (90) at the lower flat portion (47d). By holding the screen member (90) in close contact with the upper flat portion (47c) and the lower flat portion (47d) in this manner, the airtightness within the internal flow path (41) can be improved.

[0126] The pressing portion (120) may have both a first pressing portion (122) and a second pressing portion (123). In this case, the pressing portion (120) may be composed of the first pressing portion (122) and the second pressing portion (123) as a single unit, or they may be composed of separate units. When the first pressing portion (122) and the second pressing portion (123) are composed as a single unit, the pressing portion (120) may be configured so that the screen member (90) is in close contact with the four planar portions (upper planar portion (47c), lower planar portion (47d), and right planar portion (47b)) of the frame member (43a, 44a).

[0127] The retaining portion (120) is not limited to the retaining portion (120) of the above embodiment, and only needs to be configured such that the inlet (45) and outlet (46) are sealed by the screen member (90). For example, the retaining portion (120) may be configured to press the screen member (90) against at least a portion of the four planar portions of the frame members (43a, 44a).

[0128] The adsorption device may adsorb carbon dioxide from air other than outdoor air. The target air for the adsorption device (10) may be outdoor air, indoor air, industrial exhaust gas, or a mixture of two or more of these.

[0129] The adsorption system (1) only needs to have an adsorption unit and a pump (72).

[0130] The screen member (90) may be a single sheet-like member. In this case, the single sheet-like member moves vertically or backward to open and close the inlet (45) and outlet (46). For example, the single sheet-like member is provided so as to connect in an annular manner across the front (first side (43)), bottom, rear (second side plate (44)), and top surfaces of the inner casing (40).

[0131] A predetermined weight may be provided at the lower end of the screen member (90). This generates downward tension in the screen member (90), suppressing sagging of the screen member (90) during the first and second operations. As a result, when closing the inlet (45) and outlet (46), the formation of wrinkles in the screen member (90) is suppressed, and the airtightness of the internal flow path (41) can be ensured.

[0132] The direction of operation may also be the left-right direction of the inner casing (40). In this case, the roll members (100a, 100b) are positioned so as to be spaced apart from the left flat section (47a) or the right flat section (47b).

[0133] The inlet (45) and outlet (46) may be configured to be opened and closed by means other than extruding and winding the screen member (90), such as by the roll members (100a, 100b).

[0134] The control unit (C) may be configured to control only the roll members (100a, 100b) and the presser unit (120).

[0135] The vacuum device (72) can be any device capable of evacuating the internal flow path (41) of the inner casing (40).

[0136] The housing section (40) can be any member that houses the suction member (50), and is not limited to an inner casing (40) that is placed inside the outer casing (30) as in the above embodiment.

[0137] The adsorption member (50) may be in the shape of a block and may not have a plurality of adsorption parts (51). In this case, the adsorption member (50) is preferably placed near the heat sink (60), and more preferably placed in contact with the heat sink (60).

[0138] While embodiments and modifications have been described above, it will be understood that a variety of changes in form and details are possible without departing from the spirit and scope of the claims. Furthermore, the embodiments, modifications, and other embodiments described above may be combined or substituted as appropriate, as long as they do not impair the functions covered by this disclosure.

[0139] The designations "1st," "2nd," "3rd," etc., mentioned above are used to distinguish between the terms to which these designations are attached, and do not limit the number or order of those terms. [Industrial applicability]

[0140] As described above, this disclosure is useful for adsorption devices and adsorption systems. [Explanation of Symbols]

[0141] 1. Adsorption System 40. Inner casing (housing section) 41 Internal flow channels 43 1st side plate (1st side) 44 2nd side plate (2nd side) 45 Inlet 46 Outlet 50 Adsorption members 72 Pumps (pressure reducing devices) 90 Screen components 90a First screen member 90b Second screen member 100a First roll member 100b Second roll member 110a, 110b Guide section 120 Pressing part C control section U Adsorption Unit

Claims

1. A housing section (40) that forms an internal passage (41) through which air flows, The facility comprises an adsorption member (50) housed in the aforementioned housing section (40) that adsorbs and desorbs carbon dioxide, An inlet (45) is formed on the first side surface (43) of the housing section (40) through which air flows into the internal flow path (41). An outlet (46) is formed on the second side surface (44) of the housing section (40) through which air flows out from the internal flow path (41). An adsorption unit having a sheet-like screen member (90) that moves forward or backward in a predetermined operating direction on the first side surface (43) and the second side surface (44) so ​​that the inlet (45) and the outlet (46) open and close.

2. The system further includes a control unit (C) that controls the operation of the screen member (90). The adsorption unit according to claim 1.

3. The device further includes guide portions (110a, 110b) that guide the screen member (90) on the first side surface (43) and the second side surface (44) in the direction of operation. The adsorption unit according to claim 1 or 2.

4. The guide portions (110a, 110b) are provided so as to extend in the direction of operation and are a pair of plate members facing each other in a first direction perpendicular to the direction of operation. The adsorption unit according to claim 3.

5. The device further includes a pressing portion (120) that presses the screen member (90) toward the first side surface (43) and the second side surface (44). The adsorption unit according to claim 1 or 2.

6. The pressing portion (120) has a first pressing portion (122) that presses both ends of the screen member (90) in a first direction perpendicular to the direction of movement, while the screen member (90) is moving forward or backward on the first side surface (43) and the second side surface (44). The adsorption unit according to claim 5.

7. The pressing portion (120) has a second pressing portion (123) that, when viewed from the front with the first side surface (43) or the second side surface (44), presses one end or the other end of the screen member (90) in the direction of operation. The adsorption unit according to claim 5.

8. The screen member (90) has a first screen member (90a) whose first side surface (43) moves forward and backward in the direction of operation, and a second screen member (90b) whose second side surface (44) moves forward and backward in the direction of operation. A first roll member (100a) that winds up and extrudes the first screen member (90a), The system further comprises a second roll member (100b) that winds up and extrudes the second screen member (90b). The adsorption unit according to claim 1 or 2.

9. The system further includes a control unit (C) that controls the first roll member (100a) and the second roll member (100b) to perform a first operation of pushing out the first screen member (90a) and the second screen member (90b) so that the inlet (45) and the outlet are closed, and a second operation of winding up the first screen member (90a) and the second screen member (90b) so that the inlet (45) and the outlet are opened. The adsorption unit according to claim 8.

10. An adsorption system comprising an adsorption unit according to claim 1 or 2, and a depressurization device (72) that reduces the pressure inside the containment section (40) when the inlet (45) and outlet (46) are closed.

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