JP2022166974A - Adsorbent, heat exchanger and adsorption type heat pump - Google Patents

Abstract

To provide a technology that increases a gas adsorption amount of an adsorbent.SOLUTION: An adsorbent is formed with a plurality of flow channels having a gas diffusion resistance that is lower than that of the adsorbent. The flow channels include: a plurality of first flow channels extending in a first direction; and a plurality of second flow channels extending in a second direction intersecting the first direction. The adsorbent includes one or more kinds of fiber.SELECTED DRAWING: Figure 4

Description

The present invention relates to adsorbents, heat exchangers, and adsorption heat pumps.

Conventionally, adsorbents containing adsorbents that adsorb or desorb gases are known. For example, Patent Literature 1 discloses a technique in which a gas to be adsorbed by adsorbents is circulated through a channel disposed between a plurality of plate-shaped adsorbents. Further, Patent Document 2 discloses a technique of allowing gas to flow through a plurality of holes formed in a plate-like adsorbent.

Japanese Patent No. 6045413 Japanese Patent No. 5900391

However, even with the prior art described above, there is still room for improvement in the technology for increasing the amount of gas adsorbed by the adsorbent. For example, in the technique described in Patent Document 1, the flow path is arranged along the main surface of the adsorbent formed in a plate shape. As the distance from the path increases, the diffusion of the gas becomes more difficult. Since the utilization rate of the adsorbent decreases when the gas becomes difficult to diffuse, it is difficult to increase the amount of adsorbed gas. In addition, in the technique described in Patent Document 2, since a plurality of holes are formed in the plate-like adsorbent in the thickness direction, if the interval between adjacent holes is widened, the inside of the adsorbent increases as it moves away from the holes. It becomes difficult for gas to diffuse. Since the utilization rate of the adsorbent decreases when the gas becomes difficult to diffuse, it is difficult to increase the amount of adsorbed gas.

The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a technique for increasing the amount of gas adsorbed by an adsorbent.

The present invention has been made to solve at least part of the above problems, and can be implemented as the following modes.

(1) According to one aspect of the present invention, an adsorbent that adsorbs gas is provided. This adsorbent is formed with a plurality of flow paths having a gas diffusion resistance lower than that of the adsorbent, and the plurality of flow paths includes a plurality of first flow paths extending in a first direction and a plurality of second flow paths extending in a second direction intersecting with the adsorbent, wherein the adsorbent includes one or more types of fibers.

According to this configuration, the adsorbent is formed with a plurality of first flow paths and a plurality of second flow paths extending in mutually intersecting directions. As a result, the gas can be diffused using the second channel to a place inside the adsorbent where the gas cannot be completely diffused by the first channel. Moreover, in the adsorbent, the second flow path extends in the second direction intersecting the first direction, so the surface area inside the adsorbent increases. This makes it easier for the adsorbent to come into contact with the gas, making it easier for the adsorbent to adsorb the gas. Therefore, the amount of gas adsorbed by the adsorbent can be increased.

In addition, since the adsorbent of this form has a plurality of flow paths, there are portions where the structure is sparse. can be suppressed.

(2) In the adsorbent of the above aspect, a first adsorption layer including the plurality of first channels and a plurality of adsorbents positioned between the plurality of first channels, and the first adsorption a second adsorption layer laminated in layers and including the plurality of second channels and a plurality of adsorbents positioned between the plurality of second channels; It may be contained in at least one of the adsorbents and oriented substantially parallel to the lamination plane of the first adsorption layer and the second adsorption layer.

According to this configuration, the adsorbent is formed by stacking the first adsorption layer including the first channel and the second adsorption layer including the second channel. Thereby, a complicated-shaped flow path can be formed relatively easily. In addition, since the fibers contained in the adsorbent are oriented substantially parallel to the lamination plane of the first adsorption layer and the second adsorption layer, the fibers of the first adsorption layer and the second adsorption layer are aligned with respect to the adsorbent. It is possible to suppress the breakage of the adsorbent due to the application of force in the direction along the lamination surface, and it is possible to suppress the occurrence of cracks in the adsorbent.

(3) In the adsorbent of the above aspect, the fibers may be oriented substantially parallel to a wall surface forming the flow path of the adsorbent. By doing so, it is possible to further suppress breakage of the adsorbent.

(4) In the adsorbent having the above configuration, the first channel and the second channel may communicate with each other. According to this configuration, the gas flowing through the channel can move back and forth between the first channel and the second channel. As a result, variations in the flow rate of the gas between the first flow path and the second flow path are reduced, so that the gas can be evenly diffused inside the adsorbent. Therefore, the amount of gas that contacts the adsorbent can be increased, and the amount of gas adsorbed by the adsorbent can be increased.

(5) According to another aspect of the invention, a heat exchanger is provided. This heat exchanger includes an adsorbent having the above-described configuration, and a heat transfer wall in which the adsorbent is arranged on one side and a heat medium flows on the other side. According to this configuration, the heat exchanger has an adsorbent with good gas adsorption performance. can be increased. Further, since the adsorbent having the above configuration can suppress the generation of cracks, it is possible to ensure the adhesion between the heat transfer wall and the adsorbent. Therefore, deterioration of thermal conductivity between the adsorbent and the heat transfer wall can be suppressed, and deterioration of heat exchange efficiency between the adsorbent and the heat medium can be suppressed. Therefore, it is possible to provide a heat exchanger that has good heat absorption/radiation performance and is capable of suppressing a decrease in heat exchange efficiency.

(6) In the heat exchanger of the above aspect, the heat transfer wall is formed in a cylindrical shape, the heat medium flows inside the heat transfer wall, and the adsorbent is provided on the outer surface of the heat transfer wall. You may arrange|position along a direction. According to this configuration, the adsorbent is arranged along the circumferential direction on the outer surface of the cylindrical heat transfer wall, so that the adsorbent acts as a heat medium flowing inside the heat transfer wall. heat can be exchanged efficiently.

(7) According to still another aspect of the present invention, an adsorption heat pump is provided. This adsorption heat pump comprises a heat exchanger of the form described above. According to this configuration, the adsorption heat pump is provided with a heat exchanger having good heat absorption/radiation performance, so that the output of the adsorption heat pump can be improved.

The present invention can be implemented in various aspects, for example, a system comprising an adsorbent, a method for producing an adsorbent, a method for producing a heat exchanger comprising an adsorber, and an adsorbent comprising the heat exchanger. It can be realized in the form of a method for manufacturing a heat pump, or the like.

BRIEF DESCRIPTION OF THE DRAWINGS It is a schematic diagram of the adsorption heat pump provided with the adsorption body of 1st Embodiment. It is an explanatory view showing roughly composition of an adsorbent of a 1st embodiment. It is a side view and a top view of the adsorption body of a 1st embodiment. It is explanatory drawing which expands some adsorbents and shows a structure notionally. It is explanatory drawing which expands and shows a part of cross section of a 1st adsorption material conceptually. It is the 1st figure explaining the manufacturing method of an adsorbent. It is the 2nd figure explaining the manufacturing method of an adsorbent. It is the 3rd figure explaining the manufacturing method of an adsorbent. It is explanatory drawing which shows typically the structure of one part of adsorption body of 1st Embodiment. It is explanatory drawing which shows typically the structure of some adsorption bodies of a 1st comparative example. FIG. 10 is a diagram conceptually showing how drying is performed in the manufacturing process of the adsorbent of the second comparative example. FIG. 6 is an explanatory diagram schematically showing the configuration of a heat exchanger as a second embodiment; It is explanatory drawing of the manufacturing method of the adsorbent of 2nd Embodiment. It is explanatory drawing which shows notionally the adsorption body of 3rd Embodiment. It is explanatory drawing which shows notionally the adsorption body of 4th Embodiment.

<First Embodiment>
FIG. 1 is a schematic diagram of an adsorption heat pump 10 having an adsorbent 1 of the first embodiment. The adsorption heat pump 10 includes two reactors 6 and 7, two evaporative condensers 8 and 9, connecting pipes connecting them, a plurality of valves arranged in the connecting pipes, a controller (not shown), Prepare. Adsorption heat pump 10 utilizes a combination of two sets of reactors and evaporative condensers to generate cold from hot.

The reactor 6 includes a reaction vessel 6a, an adsorbent 1 accommodated inside the reaction vessel 6a, and a heat exchanger 5 for circulating a heat medium inside the reaction vessel 6a. The reactor 7 includes a reaction vessel 7a, an adsorbent 1 accommodated inside the reaction vessel 7a, and a heat exchanger 5 for circulating a heat medium inside the reaction vessel 7a. The adsorbent 1 adsorbs the vapor of the working fluid generated in the evaporative condensers 8 and 9, such as water vapor. Also, the adsorbent 1 adsorbing water vapor desorbs water vapor by using the heat of a heat medium flowing through the heat exchanger 5, for example, hot water.

The evaporative condenser 8 has a water pipe 8 a through which water flows, and a storage container 8 b that stores water to be adsorbed by the adsorbent 1 . In the evaporative condenser 8, depending on the mode of the connected reactors 6 and 7, the heat of vaporization when the water in the storage container 8b evaporates cools the water flowing through the water pipe 8a, or cools the water in the storage container 8b. vapor is condensed back into water.

The evaporative condenser 9 has a water pipe 9 a through which water flows, and a storage container 9 b that stores water to be adsorbed by the adsorbent 1 . In the evaporative condenser 9, depending on the mode of the connected reactors 6 and 7, the heat of vaporization when the water in the storage container 9b evaporates cools the water flowing through the water pipe 9a, or cools the water in the storage container 9b. vapor is condensed back into water.

Next, the operation of the adsorption heat pump 10 of this embodiment will be described. Here, the description will be based on the adsorption heat pump 10 in the state shown in FIG. In the state shown in FIG. 1, the valve between the reactor 6 and the evaporative condenser 8 and the valve between the reactor 7 and the evaporative condenser 9 are opened by a command from the control unit, and the reaction The valve between vessel 6 and evaporative condenser 9 and the valve between reactor 7 and evaporative condenser 8 are closed.

In the reactor 6 and the evaporative condenser 8, which are connected via a connecting pipe, the pressure inside is reduced by the adsorption action as an adsorption step. Thereby, water vapor is generated in the evaporative condenser 8 . The generated vapor of the working fluid passes through the connecting pipe (white arrow F11), enters the reactor 6, and is adsorbed by the adsorbent 1. At this time, the water flowing through the water pipe 8a of the evaporative condenser 8 is cooled by the heat of vaporization of water. As a result, cold water is discharged from the water pipe 8a, and cold heat is supplied to the outside of the adsorption heat pump 10. As shown in FIG.

Hot water is supplied to the heat exchanger 5 of the reactor 7 as a desorption step between the reactor 7 and the evaporative condenser 9 which are connected via a connecting pipe. In the adsorbent 1 of the reactor 7 that adsorbs water, water is desorbed from the adsorbent 1 by the heat of the hot water supplied. The desorbed water enters the evaporative condenser 9 as steam (white arrow F12) and is condensed by the water flowing through the water pipe 9a to become water. This water is utilized in the subsequent adsorption step.

In the adsorption heat pump 10 of the present embodiment, one of the reactors 6 and 7 adsorbs water vapor, and the other of the reactors 6 and 7 desorbs water vapor, thereby generating cold heat by supplying hot water. continuously.

FIG. 2 is an explanatory diagram schematically showing the configuration of the adsorbent 1 of this embodiment. FIG. 3 is a side view and a top view of the adsorbent 1 of this embodiment. FIG. 1 shows XYZ axes that are orthogonal to each other. The x-axis corresponds to the direction in which the first flow path 11b extends (first direction), the y-axis corresponds to the direction in which the second flow path 12b extends (second direction), and the Z-axis corresponds to the first adsorption layer. It corresponds to the lamination direction of 11 and the second adsorption layer 12 . These are also common in the figures after FIG. In addition, in FIGS. 2 and 3, in order to make the structure of the adsorbent 1 easy to understand, the size of each member, the size of the gap, and the like are shown with their actual proportions changed.

As shown in the figure, the adsorbent 1 is constructed by alternately stacking first adsorption layers 11 and second adsorption layers 12 . The adsorbent 1 is formed with a plurality of flow paths (a plurality of first flow paths 11b and a plurality of second flow paths 12b). In this embodiment, the adsorbent 1 includes three first adsorption layers 11 and two second adsorption layers 12, but the number of adsorption layers is not limited to this embodiment and may be any number. can be done. In the following description, when the first flow path 11b and the second flow path 12b are not distinguished from each other, they are simply referred to as "flow paths."

The first adsorption layer 11 includes a plurality of first flow paths 11b and a plurality of first adsorbents 11a positioned between the plurality of first flow paths 11b. The first adsorbent 11a is made of a material containing silica gel, and is formed in a linear (thread-like) shape with a rectangular cross section. The plurality of first adsorbents 11a are arranged at a constant distance from each other such that the longitudinal direction thereof extends along the x-axis direction. In the present embodiment, the width (length in the y-axis direction) and height (length in the z-axis direction) in the cross section (the cross section perpendicular to the longitudinal direction) of the first adsorbent 11a are, for example, 100 μm or more and 5 mm or less. is. As described above, the plurality of first adsorbents 11a are arranged side by side with a certain distance therebetween. is. By arranging the plurality of first adsorbents 11a side by side with a certain distance in this manner, the water vapor adsorbed by the adsorbent 1 flows between two adjacent first adsorbents 11a. 1 channel 11b is formed. That is, the plurality of first adsorbents 11a form a first flow path 11b extending in the x-axis direction (first direction). Since the first channel 11b is a gap between adjacent first adsorbents 11a, the gas diffusion resistance in the first channel 11b is lower than the gas diffusion resistance in the first adsorbent 11a.

The second adsorption layer 12 includes a plurality of second channels 12b and a plurality of second adsorbents 12a positioned between the plurality of second channels 12b. Like the first adsorbent 11a, the second adsorbent 12a is made of a material containing silica gel, and is shaped like a bar (thread) having a rectangular cross section. The plurality of second adsorbents 12a are arranged at a constant distance from each other such that the longitudinal direction thereof extends along the y-axis direction. In the present embodiment, the width (length in the x-axis direction) and height (length in the z-axis direction) in the cross section (the cross section perpendicular to the longitudinal direction) of the second adsorbent 12a are, for example, 100 μm or more and 5 mm or less. is. As described above, the plurality of second adsorbents 12a are arranged side by side with a certain distance therebetween. is. By arranging the plurality of second adsorbents 12a side by side with a certain distance in this manner, the water vapor adsorbed by the adsorbent 1 flows between two adjacent second adsorbents 12a. Two flow paths 12b are formed. That is, the plurality of second adsorbents 12a form a second flow path 12b extending in the y-axis direction (second direction). Since the second flow path 12b is a gap between the adjacent second adsorbents 12a, the gas diffusion resistance in the second flow path 12b is lower than the gas diffusion resistance in the second adsorbent 12a. That is, the gas diffusion resistance of the plurality of channels formed in the adsorbent 1 is lower than the diffusion resistance of the adsorbent 1 . In addition, in FIGS. 3A and 3B, in order to clearly distinguish between the first adsorbent 11a and the first channel 11b, and between the second adsorbent 12a and the second channel 12b, the first adsorbent 11a is hatched with diagonal lines slanted downward to the right, and the second adsorbent 12a is cross-hatched.

As described above, in the present embodiment, the first flow path 11b extends in the first direction, the second flow path 12b extends in the second direction, and the first direction and the second direction are orthogonal. Thereby, the adsorbent 1 is formed in a mesh shape. However, the first flow path 11b and the second flow path 12b do not intersect, but are in contact with and overlap each other. The first flow path 11b and the second flow path 11b and the second flow path 12b are separated from each other by the communication portion 16 (indicated by hatching upward to the right in FIG. It communicates with the flow path 12b. This forms a third flow path extending in the z-axis direction. In other embodiments, the first flow path 11b and the second flow path 12b may be communicated via separate communication flow paths.

FIG. 4 is an explanatory view conceptually showing the configuration by enlarging a part of the adsorbent 1. As shown in FIG. FIG. 5 is an explanatory view conceptually showing an enlarged part of the cross section of the first adsorbent 11a. 5(a) shows the AA section shown in FIG. 3(c), and FIG. 5(b) shows the BB section shown in FIG. 3(b).

The adsorbent 1 includes fibers F, as shown in FIG. Specifically, the first adsorbent 11a and the second adsorbent 12a contain fibers F. The fibers F include at least one kind of fibers such as inorganic fibers and mineral fibers. In this embodiment, the fibers F include carbon fibers.

As shown in FIGS. 3A and 4, the first adsorbent 11a has a stacking surface 11S with the second adsorbent 12a. As shown in FIG. 5A, the lamination surface 11S of the first adsorbent 11a is parallel to the xy plane. The fibers F are oriented substantially parallel to the lamination surface 11S.

In the present embodiment, the AA cross section (FIG. 3(c)) of the first adsorbent 11a is observed with a SEM (Scanning Electron Microscope), and the angle with respect to the laminated surface 11S is within ±45°. When the fibers F account for 50% or more of all the fibers F present in the observation field, it is said that the fibers F are oriented substantially parallel to the lamination surface 11S. As shown in FIG. 5A, using a line LA parallel to the lamination surface 11S, it is possible to determine whether or not the angle of the fiber F with respect to the lamination surface 11S is within ±45°.

Further, as shown in FIGS. 3A and 4, the first adsorbent 11a has a wall surface 11W forming the first flow path 11b. As shown in FIG. 5B, the wall surface 11W of the first adsorbent 11a is parallel to the xz plane. The fibers F are oriented substantially parallel to the wall surface 11W.

In this embodiment, the BB cross section (FIG. 3(b)) of the first adsorbent 11a is observed with an SEM, and all the fibers F having an angle within ±45° with respect to the wall surface 11W are present in the observation field. 50% or more of the fibers F, it is said that "the fibers F are oriented substantially parallel to the wall surface 11W". As shown in FIG. 5B, a line LB parallel to the wall surface 11W can be used to determine whether or not the angle of the fiber F with respect to the wall surface 11W is within ±45°.

Similarly, the fibers F contained in the second adsorbent 12a are oriented substantially parallel to the plane of lamination with the second adsorbent 12a, and the wall surface forming the second flow path 12b They are oriented substantially parallel.

FIG. 6 is a first diagram for explaining the method of manufacturing the adsorbent 1. FIG. FIG. 7 is a second diagram for explaining the manufacturing method of the adsorbent 1. FIG. FIG. 8 is a third diagram for explaining the manufacturing method of the adsorbent 1. FIG. In this manufacturing method, a material obtained by adding fiber F and a binder to a material in which silica gel and a heat conduction aid are mixed (hereinafter also referred to as an "adsorbent forming material") is used, for example, by a 3D printer to produce an adsorbent. 1 (adsorbent intermediate 1p). Since the adsorbent forming material is paste-like, soft, and has a large amount of water to ensure fluidity, the adsorbent intermediate 1p formed by the 3D printer is dried to complete the adsorbent 1. Details are described below.

In the manufacturing method of the adsorbent 1, first, an adsorbent forming material is extruded onto the surface of a flat stage 18 using, for example, a nozzle 19 of a 3D printer to form the first adsorbent intermediate 11ap. At this time, the nozzle 19 is moved in the x-axis direction along the surface of the stage 18 as shown in FIG. 6 (white arrow F13 in FIG. 6). After the nozzle 19 is moved in the x-axis direction to form one first adsorbent intermediate 11ap, the nozzle 19 is moved in the y-axis direction. After moving the nozzle 19 in the y-axis direction, another first adsorbent intermediate 11ap is placed next to the first adsorbent intermediate 11ap with a predetermined distance from the previously formed first adsorbent intermediate 11ap. Mold 11ap. This is repeated to form a plurality of first adsorbent intermediate bodies 11ap on the surface of the stage 18 with a predetermined gap. Thereby, the first adsorption layer intermediate body 11p is formed (see FIG. 6). This step is also called a first adsorption layer intermediate formation step. In the manufacturing method of the present embodiment, the adsorbent 1 can be formed directly on the heat exchanger 5 by using the stage 18 as the heat transfer wall 5a of the heat exchanger 5 .

Next, on the positive side of the first adsorption layer intermediate body 11p formed earlier in the z-axis direction, using the nozzle 19, the above adsorbent forming material is applied in the same manner as in the molding of the first adsorbent intermediate body 11ap. Extrude to form a second adsorbent intermediate 12ap (FIG. 7). At this time, the nozzle 19 is moved in the y-axis direction along the surface of the stage 18 (white arrow F14 in FIG. 7). After moving the nozzle 19 to form one second adsorbent intermediate 12ap, the nozzle 19 is moved in the x-axis direction. After moving the nozzle 19 in the x-axis direction, another second adsorbent intermediate 12ap is placed next to the second adsorbent intermediate 12ap with a predetermined distance from the previously formed second adsorbent intermediate 12ap. Mold 12ap. By repeating this, a plurality of second adsorbent intermediate bodies 12ap are formed on the plus side of the first adsorption layer intermediate body 11p in the z-axis direction while leaving predetermined gaps therebetween. Thereby, the second adsorption layer intermediate 12p is formed (see FIG. 7). This step is also called a second adsorption layer intermediate forming step.

Subsequently, the first adsorption layer intermediate formation step, the second adsorption layer intermediate formation step, and the first adsorption layer intermediate formation step are performed in this order. As a result, an adsorbent intermediate 1p, which is a laminate in which five layers are laminated, is formed (FIG. 8). The adsorbent 1 is completed by drying the adsorbent intermediate 1p.

Although the length of the fibers F contained in the adsorbent forming material is not particularly limited, it is preferably shorter than the nozzle diameter of the nozzle 19 . If the length of the fiber F is shorter than the nozzle diameter of the nozzle 19, clogging of the nozzle 19 can be suppressed. As the nozzle 19, for example, a nozzle having a nozzle diameter of about 0.1 mm to 3 mm can be used. Moreover, it is preferable that the fiber F has a length of 0.1 μm or more, because the reinforcing effect can be further exhibited.

Next, the effect of the adsorbent 1 of this embodiment will be described in comparison with a comparative example.
FIG. 9 is an explanatory diagram schematically showing the configuration of part of the adsorbent 1 of the present embodiment, and FIG. 10 is an explanatory diagram schematically showing the configuration of part of the adsorbent 90 of the first comparative example. is. FIG. 10 shows a portion corresponding to FIG. 9 and 10, (a) shows a top view, (b) shows a section AA in (a), and (c) shows a section BB in (a). It should be noted that illustration of the fibers F is omitted in FIG.

As shown in FIG. 10, the adsorbent 90 of the first comparative example is formed with a plurality of flow paths 92 penetrating the adsorbent 90 in the z-axis direction. The width D90 (FIG. 10(a)) between the flow paths 92 in the adsorbent 90 of the first comparative example corresponds to the width D1 (FIG. 9 (a)). Further, the shape of the flow path 92 of the adsorbent 90 of the first comparative example (FIG. 10(a)) when viewed from the z-axis direction is the same as that of the communicating portion 16 (FIG. 9(a)) of the adsorbent 1 of the present embodiment. Match the shape.

As described above, the adsorbent 90 of the first comparative example is formed with a plurality of flow paths 92 penetrating in the z-axis direction (FIGS. 10(a) and 10(c)). In contrast, in the adsorbent 1 of the present embodiment, a plurality of first flow paths 11b penetrating in the x-axis direction and a plurality of second flow paths 12b penetrating in the y-axis direction are formed. The gas, which is the adsorbent, is diffused into the adsorbent while diffusing in the channel. In the adsorbent 90 of the first comparative example, there is only the channel 92 penetrating in the z-axis direction. By forming a communicating portion 16 where the first channel 11b communicates with the second channel 12b, a channel penetrating in the z-axis direction is formed. A second flow path 12b is formed. In other words, while the adsorbent 90 of the first comparative example has only the channel 92 functioning as a vertical hole, the adsorbent 1 of the present embodiment has a channel functioning as a vertical hole and a lateral hole. A functioning flow path is formed. Since the gas as the adsorbent diffuses from the channel toward the inside of the adsorbent, it is difficult for the gas to diffuse into the adsorbent away from the channel in the adsorbent. Compared with the adsorbent 90 of the first comparative example, the adsorbent 1 of the present embodiment has a more complicated flow path shape and a larger contact area between the adsorbent and the gas. Moreover, since the speed at which the gas diffuses through the channel is faster than the speed at which the gas diffuses inside the adsorbent, the adsorption progresses quickly to the inside of the adsorbent. Therefore, the adsorption speed and adsorbent utilization rate are improved. Therefore, according to the adsorbent 1 of the present embodiment, it is possible to improve the gas adsorption speed and the adsorbent utilization factor and increase the gas adsorption amount compared to the adsorbent 90 of the first comparative example. can be done.

FIG. 11 is a diagram conceptually showing how drying is performed in the manufacturing process of the adsorbent of the second comparative example. The adsorbent of the second comparative example is formed in the same shape by the same manufacturing method as that of the adsorbent 1 using a material different from that of the adsorbent 1 of the present embodiment. The adsorbent of the second comparative example is a material obtained by removing the fibers F and the binder from the adsorbent forming material of the present embodiment, that is, a material in which silica gel and a heat conduction aid are mixed (hereinafter, "comparative example forming material" (also called As shown in FIG. 11, the adsorbent intermediate 80p, which is in a state before drying in the adsorbent manufacturing process of the second comparative example, alternates between the first adsorption layer intermediate 81p and the second adsorption layer intermediate 82p. It is a laminate having a five-layer structure in which The first adsorption layer intermediate 81p includes a plurality of first adsorbent intermediates 81ap, and the second adsorption layer intermediate 82p includes a plurality of second adsorbent intermediates 82ap.

As described above, the adsorbent 1 of the present embodiment has more channels than the adsorbent 90, and the channels are formed so as to intersect each other. Therefore, as shown in FIGS. 9B, 9C and 10B, 10C, the adsorbent 1 has a looser structure than the adsorbent 90. In FIG. Similarly, the adsorbent of the second comparative example also has a sparse structure compared to the adsorbent 90 of the first comparative example. Therefore, the adsorbent of the second comparative example has particularly weak structural strength in the cross section corresponding to the cross section shown in FIG. 9C in the adsorbent 1 . In the step of drying the adsorbent intermediate 80p, the adsorbent intermediate 80p is dried from above (z-axis plus side). The comparative example forming material is pasty and soft, and has a large amount of water to ensure fluidity, so it shrinks when dried. In the adsorbent intermediate body 80p, since the first adsorption layer intermediate body 81p laminated on the top is dried, the first adsorption layer intermediate body 81p laminated on the top is shrunk. The lowermost first adsorption layer intermediate 81p dries slowly and adheres to the stage 18, so it does not shrink much. Therefore, in the process of drying the adsorbent intermediate 80p, a pulling force in the x-axis direction (longitudinal direction) acts on the first adsorbent intermediate 81ap constituting the first adsorption layer intermediate 81p on the uppermost surface (Fig. 11(a)), the first adsorbent intermediate 81ap may be cut (FIG. 11(a)). As shown in FIG. 11(a), when the first adsorbent intermediate 81ap is cut and a crack occurs in the first adsorption layer intermediate 81p, as shown in FIG. The intermediate 80p dries while warping (white arrow in FIG. 11(b)). As a result, a gap is formed between the heat transfer wall 5a used as the stage 18 and the adsorbent, which may deteriorate the thermal conductivity between the adsorbent and the heat exchanger.

In contrast, according to the adsorbent 1 of the present embodiment, the adsorbent-forming material has the fibers F, so that the fibers F and the binder enhance the adhesive effect of the adsorbent-forming material. In addition, the fibers F contained in the adsorbent-forming material are oriented substantially parallel to the lamination surface 11S of the first adsorption layer 11 and the second adsorption layer 12 (FIG. 5(a)), and the first adsorbent It is oriented substantially parallel to the wall surface 11W forming the first flow path 11b of 11a (FIG. 5(b)). Therefore, along with the drying of the adsorbent intermediate 1p, force is applied to the first adsorbent intermediate 11ap in the direction (longitudinal direction) along the lamination surface 11S of the first adsorption layer 11 and the second adsorption layer 12. Therefore, it is possible to suppress the breakage of the first adsorbent intermediate 11ap caused by this, and to suppress the occurrence of cracks in the adsorbent intermediate 1p. In addition, the generation of cracks due to temperature changes in the adsorbent 1 during use of the adsorption heat pump 10 can also be suppressed. Therefore, a decrease in thermal conductivity between the adsorbent 1 and the heat exchanger 5 can be suppressed. As a result, it is possible to suppress the deterioration of the heat dissipation to the heat exchanger 5 of the heat generated by the adsorption of water vapor in the adsorbent 1, and it is possible to suppress the decrease in the speed of the adsorption reaction of the water vapor by the adsorbent 1. .

Carbon fibers are used as the fibers F in the adsorbent 1 of the present embodiment. Since carbon fiber has the effect of improving thermal conductivity, according to the adsorbent 1, it is possible to suppress a decrease in structural strength and improve thermal conductivity.

Further, according to the manufacturing method of the adsorbent of the present embodiment, the long linear first adsorbent 11a and the second adsorbent 12a are formed by extruding the adsorbent forming material using the nozzle 19 of the 3D printer. is formed, the fibers F can be easily oriented substantially parallel to the lamination surface 11S of the first adsorption layer 11 and the second adsorption layer 12 . Similarly, the fibers F can be easily oriented substantially parallel to the wall surfaces forming the flow paths of the adsorbent.

Also, the adsorption heat pump 10 of this embodiment includes the adsorbent 1 . As described above, this adsorbent 1 has improved utilization efficiency and can suppress a decrease in thermal conductivity with the heat exchanger, so that the adsorption amount of the adsorbent can be increased. can be done. Therefore, according to the adsorption heat pump 10 of this embodiment, the output of the adsorption heat pump can be improved.

<Second embodiment>
FIG. 12 is an explanatory diagram schematically showing the configuration of a heat exchanger 5A as a second embodiment of the invention. The heat exchanger 5A of this embodiment includes a cylindrical heat transfer wall 5a and an adsorbent 2 formed on the outer surface of the heat transfer wall 5a. As the water flows. The adsorbent 2 of this embodiment differs in shape from the adsorbent 1 of the first embodiment.

The adsorbent 2 includes a first adsorption layer 21 and a second adsorption layer 22 laminated on the first adsorption layer 21, and has a cylindrical shape along the circumferential direction on the outer surface of the heat transfer wall 5a. formed.

The first adsorption layer 21 includes a plurality of first flow paths 21b and a plurality of first adsorbents 21a positioned between the plurality of first flow paths 21b. The first adsorbent 21a is made of a material containing silica gel and fibers F, and is formed in a linear (thread-like) shape having a rectangular cross-sectional shape. The first adsorbent 21a is formed along the outer periphery of the heat transfer wall 5a in a direction in which the longitudinal direction intersects the central axis C5 of the heat transfer wall 5a. A portion of the first adsorbent 21a is formed in a spiral shape as a whole on the outer surface of the heat transfer wall 5a. The interval between the adjacent first adsorbents 21a and the interval between the spirals are constant, and in the present embodiment, they are, for example, 50 μm or more and 2 mm or less. Thus, the first flow path 21b through which the gas adsorbed by the adsorbent 2 flows is formed between the adjacent first adsorbents 21a. Since the first channel 21b is a gap between adjacent first adsorbents 21a, the gas diffusion resistance in the first channel 21b is lower than the gas diffusion resistance in the first adsorbent 21a.

The second adsorption layer 22 includes a plurality of second flow paths 22b and a plurality of second adsorbents 22a positioned between the plurality of second flow paths 22b. Like the first adsorbent 21a, the second adsorbent 22a is made of a material containing silica gel and fibers F, and is formed in a linear (thread-like) rectangular shape having the same cross-sectional shape as the first adsorbent 21a. . The second adsorbent 22a is formed along the outer periphery of the heat transfer wall 5a so that the longitudinal direction intersects the central axis C5 of the heat transfer wall 5a and intersects the longitudinal direction of the first adsorbent 21a. It is A portion of the second adsorbent 22a, like the first adsorbent 21a, has a spiral overall shape on the outer surface of the heat transfer wall 5a. The interval between adjacent second adsorbents 22a and the spiral interval are constant, and in this embodiment, the same as the interval in the first adsorbent 21a. Thus, the second flow path 22b through which the gas adsorbed by the adsorbent 2 flows is formed between the adjacent second adsorbents 22a. Since the second flow path 22b is a gap between the adjacent second adsorbents 22a, the gas diffusion resistance in the second flow path 22b is lower than the gas diffusion resistance in the second adsorbent 22a.

As described above, since the first channel 21b of the first adsorption layer 21 and the second channel 22b of the second adsorption layer 22 are stacked so as to intersect each other, the adsorbent 2 has a mesh shape as illustrated. is formed in

FIG. 13 is an explanatory diagram of a method for manufacturing the adsorbent 2 of the second embodiment. As with the adsorbent 1 of the first embodiment, the adsorbent 2 of the present embodiment is also shaped by a 3D printer using the same material as the adsorbent forming material of the first embodiment.

Specifically, first, as shown in FIG. 13(a), the heat transfer wall 5a is rotated around the central axis C5 of the heat transfer wall 5a (white arrow F21 in FIG. 13(a), F22), the nozzle 19 is moved from one end 5b of the heat transfer wall 5a toward the other end 5c (white arrow F23 in FIG. 13(a)). The adsorbent-forming material extruded from the moving nozzle 19 adheres to the outer wall surface of the heat transfer wall 5a, thereby forming a first adsorbent intermediate that is arranged obliquely with respect to the central axis C5 as shown in FIG. 13(a). A body 21ap is formed. After forming one first adsorbent intermediate 21ap, another first adsorbent intermediate 21ap is formed by the same method with a gap left. Thereby, the first adsorption layer intermediate 21p is formed. At this time, the gap becomes the first channel 21 b of the first adsorption layer 21 .

Next, as shown in FIG. 13(b), the heat transfer wall 5a is rotated about the central axis C5 of the heat transfer wall 5a (white arrows F24 and F25 in FIG. 13(b)), and the nozzle 19 is moved from the other end 5c of the heat transfer wall 5a toward the one end 5b (white arrow F26 in FIG. 13(b)). The adsorbent forming material extruded from the moving nozzle 19 adheres to the outer surface of the first adsorption layer intermediate body 21p, thereby forming the second adsorption layer intermediate body 21p that is arranged obliquely with respect to the central axis C5 as shown in FIG. 13(b). An adsorbent intermediate 22ap is formed. After forming one second adsorbent intermediate 22ap, another second adsorbent intermediate 22ap is formed by the same method with a gap left. Thereby, the second adsorption layer intermediate 22p is formed. At this time, the gap becomes the second flow path 22b of the second adsorption layer 22 . Two layers of the first adsorption layer intermediate 21p and the second adsorption layer intermediate 22p are laminated to form the adsorbent intermediate 2p (FIG. 13(b)). The adsorbent 2 is completed by drying the adsorbent intermediate 2p.

As described above, the adsorbent 2 of the present embodiment is formed with a plurality of first flow paths 21b and a plurality of second flow paths 22b extending in mutually intersecting directions. Therefore, like the adsorbent 1 of the first embodiment, the utilization rate of the adsorbent 1 can be improved, and the adsorption amount of water vapor in the adsorbent 2 can be increased. As a result, the amount of heat absorbed and released in the heat exchanger 5A can be increased, and the performance of the heat exchanger 5A can be improved.

In addition, in the heat exchanger 5A of the present embodiment, the adsorbent 2 is arranged along the circumferential direction on the outer surface of the cylindrically formed heat transfer wall 5a. Thereby, the adsorbent 2 can efficiently exchange heat with the water flowing inside the heat transfer wall 5a, and can increase the amount of heat absorbed and released in the heat exchanger 5A.

Further, the adsorbent 2 of this embodiment also contains fibers F, like the adsorbent 1 of the first embodiment. Like the adsorbent 2 of this embodiment, if the adsorbent intermediate 2p formed in a mesh-like cylindrical shape does not contain the fibers F, as described in the first embodiment, When a crack occurs in a portion with a weak structure, the adsorbent intermediate 2p warps from the crack and dries, and the crack extends in the direction along the central axis C5, and the adsorbent intermediate 2p cracks and opens. There is a risk of coming. On the other hand, since the adsorbent forming material of the present embodiment has fibers F, and the fibers F and the binder enhance the adhesive effect, cracks due to drying of the adsorbent intermediate 2p can be suppressed. Therefore, a decrease in thermal conductivity between the adsorbent 2 and the heat transfer wall 5a can be suppressed. As a result, it is possible to improve the heat dissipation of the heat generated by the adsorption of water vapor in the adsorbent 2 to the heat medium, and to suppress the decrease in the speed of the adsorption reaction of water vapor by the adsorbent 2 .

Further, according to the heat exchanger 5A of the present embodiment, the plurality of first adsorbents 21a and the plurality of second adsorbents 22a are formed on the outer surface of the heat transfer wall 5a with a gap therebetween. Adsorbent 2 can be formed directly on the outer surface of 5a. Thereby, the adsorbent 2 can be formed relatively easily on the outer periphery of the cylindrical heat transfer wall 5a.

<Third Embodiment>
FIG. 14 is an explanatory diagram conceptually showing the adsorbent 3 of the third embodiment. 14(a) is a perspective view of the adsorbent 3, and FIG. 14(b) is a top view of the adsorbent 3. FIG. In FIG. 14(b), in order to clearly show the first flow path 32, the areas other than the first flow path 32 are hatched with oblique lines, and the illustration of the fibers F is omitted. For convenience of explanation, in FIG. 14, the direction in which the opening of the first channel 32 is formed is the z-axis direction, the direction in which the opening of the second channel 33 is formed is the y-axis direction, and the z-axis and the y-axis is defined as the x-axis direction. In addition, in FIG. 14, in order to make the structure of the adsorbent 3 easy to understand, the size of the flow path and the like are changed from the actual ratio.

Although the adsorbent 3 of the third embodiment has a different shape from the adsorbent 1 (FIG. 2) of the first embodiment, it is made of the same material as that of the first embodiment. That is, the adsorbent 3 contains fibers F as shown in FIG. 14(a). A plurality of first flow paths 32 and a plurality of second flow paths 33 are formed in the adsorbent 3 of this embodiment, and are formed in a substantially rectangular parallelepiped shape.

The first channel 32 is a channel extending in the z-axis direction and penetrates the adsorbent 3 in the z-axis direction. In this embodiment, nine first flow paths 32 are formed. The first flow paths 32 are arranged side by side at regular intervals in the x-axis direction and the y-axis direction. The z-axis direction in this embodiment is also called a "first direction".

The second channel 33 is a channel extending in the y-axis direction and penetrates the adsorbent 3 in the y-axis direction. In this embodiment, eight second flow paths 33 are formed. The second flow paths 33 are arranged side by side at equal intervals in each of the x-axis direction and the z-axis direction. The y-axis direction in this embodiment is also called a “second direction”.

Next, an example of a method for manufacturing the adsorbent 3 will be described. First, an adsorbent having through holes formed in the z-axis direction is formed, for example, by extrusion. In this case, a through hole formed along the z-axis direction serves as the first channel 32 . In extrusion molding, the material is extruded in the z-axis direction, so the fibers F are oriented substantially parallel to the z-axis direction (FIG. 14(a)). A drill is used to form a through hole in the y-axis direction in the adsorbent molded by extrusion. The through hole formed by this drill becomes the second flow path 33 . Thereby, the adsorbent 3 is completed. In addition, although the through-hole is formed using a drill here, the through-hole may be formed by another method.

As described above, the adsorbent 3 of the third embodiment is formed with a plurality of first flow paths 32 and a plurality of second flow paths 33 extending in mutually intersecting directions. As a result, water vapor can be diffused over a wider range, and the surface area inside the adsorbent 3 increases, so that the adsorbent 3 can easily adsorb water vapor. Therefore, the adsorption amount of water vapor in the adsorbent 3 can be increased.

In addition, although the structure of the adsorbent 3 of the present embodiment is partially sparse due to the formation of a plurality of flow paths, the adsorbent 3 includes the fibers F, so that the structural strength can be improved. .

<Fourth Embodiment>
FIG. 15 is an explanatory diagram conceptually showing the adsorbent 4 of the fourth embodiment. 15(a) is a perspective view of the adsorbent 4, and FIG. 15(b) is a top view of the adsorbent 4. FIG. In FIG. 15(b), in order to clearly show the first flow path 42, areas other than the first flow path 32 are hatched with oblique lines, and illustration of the fibers F is omitted. For convenience of explanation, in FIG. 15, the direction in which the openings of the first flow paths 42 are formed is defined as the x-axis direction, the direction in which the openings of the second flow paths 43 are formed is defined as the y-axis direction, and the z-axis direction is defined as and the y-axis is defined as the z-axis direction. In addition, in FIG. 15, in order to make the structure of the adsorbent 3 easy to understand, the size of the flow path and the like are changed from the actual ratio.

Although the adsorbent 4 of the fourth embodiment has a different shape from the adsorbent 1 (FIG. 2) of the first embodiment, it is made of the same material as that of the first embodiment. That is, the adsorbent 4 contains fibers F, as shown in FIG. 15(a). A plurality of first flow paths 42 and a plurality of second flow paths 43 are formed in the adsorbent 4 of this embodiment, and are formed in a substantially rectangular parallelepiped shape.

The first channel 42 is a channel extending in the x-axis direction and penetrates the adsorbent 4 in the x-axis direction. In this embodiment, six first flow paths 42 are formed. The first flow paths 42 are arranged at regular intervals in the y-axis direction and the z-axis direction. The x-axis direction in this embodiment is also called a "first direction".

The second channel 43 is a channel extending in the y-axis direction and penetrates the adsorbent 4 in the y-axis direction. In this embodiment, six second flow paths 43 are formed. The second flow paths 43 are arranged at equal intervals in each of the x-axis direction and the z-axis direction. The y-axis direction in this embodiment is also called a “second direction”.

In this embodiment, the first flow path 42 and the second flow path 43 overlap and communicate with each other. Therefore, a third flow path 44 extending in the z-axis direction is formed (FIG. 15(b)). In the fourth embodiment, the first channel 42, the second channel 43, and the third channel 44 are orthogonal to each other.

Next, an example of a method for manufacturing the adsorbent 4 will be described. First, an adsorbent having through holes formed in the x-axis direction is molded by, for example, extrusion molding. In this case, the through hole formed along the x-axis direction serves as the first flow path 42 . In extrusion molding, the material is extruded in the x-axis direction, so the fibers F are oriented substantially parallel to the x-axis direction (FIG. 15(a)). A drill is used to form a through hole in the y-axis direction in the adsorbent molded by extrusion. The through hole formed by this drill becomes the second flow path 43 . At this time, the third flow path 44 is formed by forming a through hole so that the first flow path 42 and the second flow path 43 communicate with each other. Alternatively, the third flow path 44 may be formed by using a drill to form through holes in the z-axis direction in the adsorbent having through holes formed in the x-axis direction and the y-axis direction. good. At this time, the drill forms a through-hole so as to pass through both the through-hole formed in the x-axis direction and the through-hole formed in the y-axis direction. Although the through-hole is formed using a drill here, the through-hole may be formed by another method.

As described above, the adsorbent 4 of the fourth embodiment is formed with a plurality of first flow paths 42 and a plurality of second flow paths 43 arranged in mutually intersecting directions. As a result, water vapor can be diffused over a wider range, and the surface area inside the adsorbent 4 increases, so that the adsorbent 4 can easily adsorb water vapor. Therefore, the adsorption amount of water vapor in the adsorbent 4 can be increased.

Furthermore, according to the adsorbent 4 of the present embodiment, the first flow path 42 and the second flow path 43 communicate with each other, so that water vapor, which is the adsorbent, diffuses evenly inside the adsorbent 4. can be done. Therefore, since water vapor comes into contact with the adsorbent 4 more easily, the adsorbent 4 can easily adsorb water vapor, and the amount of water vapor adsorbed by the adsorbent 4 can be increased.

Moreover, since the adsorbent 4 of the present embodiment also includes the fibers F, the structural strength of the adsorbent 4 can be improved.

<Modification of this embodiment>
The present invention is not limited to the above-described embodiments, and can be implemented in various aspects without departing from the scope of the invention. For example, the following modifications are possible.

- In the above-described embodiment, the example in which the first direction in which the first flow path extends and the second direction in which the second flow path extends are perpendicular to each other. may not be orthogonal, but may be in a direction that intersects them. As a result, water vapor can be circulated through the inside of the adsorbent, which cannot be circulated through one channel, through the other channel, so the utilization rate of the adsorbent is improved, and the amount of water vapor adsorbed by the adsorbent is increased. can be made

- In the adsorbent of the above-described embodiment, an example in which the first flow path extending in the first direction and the second flow path extending in the second direction are formed is shown. may be formed. For example, a third channel extending in a third direction that intersects the first direction at an angle of 45 degrees may be formed.

- In the above embodiment, silica gel was exemplified as a material having adsorption ability, but it is not limited to this. For example, activated carbon or zeolite that can adsorb water may be used. Also, the gas adsorbed by the adsorbent is not limited to water vapor. For example, it may be configured as an adsorbent that adsorbs ammonia, methanol, ethanol, or the like.

- In 1st Embodiment, the cross-sectional shape of the 1st adsorption material 11a and the 2nd adsorption material 12a illustrated what was rectangular shape. However, the cross-sectional shape of the adsorbent is not limited to a rectangular shape, and can be formed in various shapes such as a circular shape, an elliptical shape, and a polygonal shape.

- Although the 1st adsorption material 11a and the 2nd adsorption material 12a showed the example formed linearly in the said embodiment, it is not limited to this. For example, it can be formed in various linear shapes such as planar wavy line shape, curved line shape, polygonal line (zigzag) shape, and the like. When the planar shape is such a shape, the direction of the center line (average line) can be defined as the direction in which the adsorbent extends.

- The manufacturing method of the adsorbent is not limited to the above embodiment, and can be manufactured by various known manufacturing methods. For example, a 3D printer may be used to manufacture the adsorbent by a hot-melt lamination method. In this case, a material in which a heat-soluble resin is mixed with the adsorbent, the heat-conducting aid, and the fibers can be used and melted by heating at the nozzle portion to be laminated. Also in this case, since it has fibers, it is possible to suppress the occurrence of cracks due to shrinkage accompanying cooling of the adsorption intermediate.

- In the first embodiment and the second embodiment, the example in which the first adsorption layer and the second adsorption layer are made of the same material is shown. may be formed. For example, adsorption layers with different materials using different types of adsorbents may be laminated.

・In the above embodiment, an example of using carbon fiber as the fiber F is shown, but it is not limited to this embodiment. At least one type of fiber, such as mineral fiber, may be included. For example, as the fibers F, carbon fibers and glass fibers may be used. Glass fiber is less expensive than carbon fiber and has the effect of improving the structural strength of the adsorbent. Cost reduction can be achieved as compared with the case where only fibers are used.

- In the above-described first and second embodiments, an example in which all the adsorbents contain the fibers F is shown, but at least one adsorbent may contain the fibers F. For example, the configuration may be such that the fibers F are included only in the first adsorption layer 11 arranged on the uppermost surface. Even if it does in this way, since generation|occurrence|production of the crack in the 1st adsorption layer intermediate body 11p which dries and shrinks first can be suppressed, the warp of the adsorption body 1 can be suppressed. Furthermore, the fibers F may be contained in only one first adsorbent 11a of the first adsorption layer 11 arranged on the uppermost surface. Also in this way, it is possible to suppress the depletion of the adsorbent.

- In the first embodiment, the fibers F are oriented substantially parallel to the stacking surface 11S and oriented substantially parallel to the wall surface 11W, but the fibers F do not have to be oriented. If the adsorbent contains fibers F, the structural strength can be improved even if the fibers F are not oriented.

Although the present invention has been described above based on the embodiments and modifications, the above-described embodiments are intended to facilitate understanding of the present invention, and do not limit the present invention. This invention may be modified and modified without departing from its spirit and scope of the claims, and this invention includes equivalents thereof. Also, if the technical features are not described as essential in this specification, they can be deleted as appropriate.

1, 2, 3, 4, 90... Adsorbent 1p, 2p, 80p... Adsorbent intermediate 5, 5A... Heat exchanger 5a... Heat transfer wall 6, 7... Reactor 6a, 7a... Reaction vessel 8... Evaporative condensation Vessel 8a... Water pipe 8b... Storage container 9... Evaporative condenser 9a... Water pipe 9b... Storage container 10... Adsorption heat pump 11, 21... First adsorption layer 11S... Laminated surface 11W... Wall surface 11a, 21a... First adsorbent 11ap, 21ap, 81ap... First adsorbent intermediate 11b, 21b, 32, 42,... First channel 11p, 21p, 81p... First adsorption layer intermediate 12, 22... Second adsorption layer 12a, 22a... Second 2 adsorbents 12ap, 22ap, 82ap... second adsorbent intermediate 12b, 22b, 33, 43... second flow path 12p, 22p, 82p... second adsorption layer intermediate 16... communicating part 18... stage 19... nozzle 44 ... Third flow path 92 ... Flow path C5 ... Central axis F ... Fiber

Claims (7)

An adsorbent that adsorbs gas,
A plurality of flow paths having a gas diffusion resistance lower than that of the adsorbent are formed,
The plurality of flow paths include a plurality of first flow paths extending in a first direction and a plurality of second flow paths extending in a second direction intersecting the first direction,
The adsorbent comprises one or more types of fibers,
Adsorbent. The adsorbent according to claim 1,
a first adsorption layer including the plurality of first channels and a plurality of adsorbents positioned between the plurality of first channels;
a second adsorption layer laminated on the first adsorption layer and including the plurality of second channels and a plurality of adsorbents positioned between the plurality of second channels;
The fibers are contained in at least one of the plurality of adsorbents, and are oriented substantially parallel to the plane of lamination of the first adsorption layer and the second adsorption layer.
Adsorbent. The adsorbent according to claim 2,
the fibers are oriented substantially parallel to a wall surface forming the flow path of the adsorbent;
Adsorbent. The adsorbent according to claim 2 or 3,
The first channel and the second channel are in communication,
Adsorbent. a heat exchanger,
The adsorbent according to any one of claims 1 to 4;
a heat transfer wall, wherein the adsorbent is arranged on one side and a heat medium flows on the other side;
Heat exchanger. A heat exchanger according to claim 5,
The heat transfer wall is formed in a cylindrical shape, and the heat medium flows inside the heat transfer wall,
The adsorbent is arranged along the circumferential direction on the outer surface of the heat transfer wall,
Heat exchanger. An adsorption heat pump comprising the heat exchanger according to claim 5 or 6.

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