Liquid recovery device and humidity control module

The gas-liquid separator with inclined guides and vertically arranged collection structures addresses the challenge of large droplet adhesion and size, enhancing collection efficiency and reducing pressure loss in liquid recovery devices.

WO2026160307A1PCT designated stage Publication Date: 2026-07-30DYNA AIR CO LTD +1
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Patent Information

Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
DYNA AIR CO LTD
Filing Date
2026-01-19
Publication Date
2026-07-30

AI Technical Summary

Technical Problem

Existing liquid recovery devices face challenges in efficiently recovering droplets from gas streams due to the horizontal arrangement of collection materials, which leads to increased size and adhesion of large droplets, resulting in decreased collection efficiency and potential clogging.

Method used

A gas-liquid separator design featuring horizontally extending collection materials and inclined guides that direct airflow, combined with vertically arranged collection structures, prevents large droplet adhesion and reduces pressure loss by guiding airflow effectively.

Benefits of technology

The solution effectively suppresses the horizontal size of the device and prevents large droplet adhesion, maintaining collection efficiency and reducing pressure loss, while allowing for flexible design and improved airflow management.

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Abstract

A liquid recovery device 150 comprises: a gas-liquid separator 140 having a plurality of collection structures 160 arranged in the vertical direction, with each collection structure 160 being provided with a collection material 162 extending in the horizontal direction and collecting droplets contained in a gas if the gas is passed therethrough, a guide 170 located below the collection material 162 and guiding the gas flowing in the horizontal direction toward the collection material 162, and side walls 172 closing both sides between the collection material 162 and the guide 170 in another horizontal direction intersecting the horizontal direction; and a tank 136 storing a humidity control liquid that is separated from the gas and that has flowed down along the guide 170.
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Description

Liquid recovery device, and humidity control module

[0001] The present disclosure relates to a liquid recovery device and a humidity control module.

[0002] For example, in Japanese Patent Application Laid-Open No. 2022-080642, a chamber for storing a sample, a first collection tube provided with a filter, and a decompression section are connected in this order via a flow path, and a heating and cooling section and a second collection tube connected to the first collection tube via a flow path are provided. The heating and cooling section collects the gas released from the sample by cooling the first collection tube, releases the gas collected in the first collection tube by heating the first collection tube in the heating and cooling section, and a gas collection device that collects the gas by the second collection tube is disclosed.

[0003] By the way, regarding a liquid recovery device that recovers droplets contained in a horizontally flowing gas, when a collection material for collecting droplets is arranged horizontally, the horizontal size of the gas-liquid separator becomes large. Further, when the collection material is inclined such that the downstream side with respect to the direction of gas flow is upward or downward with respect to the horizontal direction, if the gas contains large droplets, the large droplets adhere to the collection material, resulting in problems such as a decrease in the collection ability of the collection material.

[0004] An object of the present disclosure is to provide a liquid recovery device that recovers droplets contained in a gas, suppresses the horizontal size, and suppresses large droplets from adhering to a collection material, and a humidity control module.

[0005] The liquid recovery device according to the first aspect includes a collection material that extends horizontally and collects droplets contained in the gas when the gas passes through, a guide that is below the collection material and guides the horizontally flowing gas toward the collection material, and side walls that close both sides in another horizontal direction that intersects the horizontal direction between the collection material and the guide. A gas-liquid separator in which a plurality of collection structures are arranged in the vertical direction, and a tank that stores the humidity control liquid separated from the gas and flowing down along the guide are provided.

[0006] According to the liquid recovery device according to this aspect, regarding a liquid recovery device that recovers droplets contained in a gas, it is possible to suppress the horizontal size and suppress large droplets from adhering to the collection material.

[0007] In the second embodiment, the liquid recovery device is the same as the liquid recovery device described in the first embodiment, wherein the guide is inclined upward from the upstream side to the downstream side in the direction of gas flow.

[0008] According to this embodiment of the liquid recovery device, the guide smoothly changes the direction of gas flow, making it difficult for gas vortices to be created. As a result, pressure loss can be reduced compared to the case where the guide is horizontal from the upstream to the downstream side in the direction of gas flow.

[0009] The humidity control module of the third embodiment comprises a gas-liquid contact module in which air and humidity control liquid come into contact, and a liquid recovery device according to the first or second embodiment for recovering the humidity control liquid, which is a droplet contained in the gas flowing out from the gas-liquid contact module.

[0010] According to this embodiment of the humidity control module, it is possible to suppress the horizontal size of the humidity control module that collects the humidity control liquid, which is a droplet contained in the gas flowing out of the gas-liquid contact module, while also suppressing the adhesion of large droplets to the collection material.

[0011] According to this disclosure, a liquid recovery device for collecting droplets contained in a gas is provided, which suppresses the horizontal size of the droplets and prevents large droplets from adhering to the collection material, and a humidity control module is also provided.

[0012] Figure 1 is a diagram illustrating an air handling unit according to an embodiment.

[0013] Figure 2 is a perspective view illustrating a humidity control module according to an embodiment of this model.

[0014] Figure 3 is a cross-sectional view illustrating the structure of a humidity control module according to an embodiment.

[0015] Figure 4 is an enlarged view of Figure 3 and is a cross-sectional view illustrating the structure of the gas-liquid separator in the humidity control module according to the embodiment.

[0016] Hereinafter, an example of an embodiment of this disclosure will be described with reference to the drawings. In each drawing, the same or equivalent components and parts are given the same reference numerals. Also, the dimensional ratios in the drawings are exaggerated for illustrative purposes and may differ from the actual ratios.

[0017] In each drawing, the X direction of the arrow is horizontal and indicates the width direction of the air handling unit 100; the Y direction of the arrow is horizontal and indicates the depth direction (airflow direction) of the air handling unit 100; and the Z direction of the arrow is vertical and indicates the height direction of the air handling unit 100.

[0018] [Embodiment] (Configuration) (Air Handling Unit 100) Figure 1 shows an air handling unit 100 according to an embodiment of the present disclosure. As shown in Figure 1, the air handling unit 100 according to this embodiment has a structure in which the inside of a substantially rectangular parallelepiped housing 102 is divided into a plurality of compartments by partition walls 102S. In this embodiment, the air handling unit 100 is configured, as an example, in the order of a filter section 104, a temperature control section 106, a humidity control section 108, and a fan section 110 in the direction of gas flow. Although hidden by other components in Figure 1, connection ports are provided in the partition walls 102S to connect to adjacent compartments.

[0019] As shown in Figure 1, the filter section 104 is the part that takes in air into the air handling unit 100 and removes dust. In one example, the filter section 104 has a filter attached to the air intake port 102I formed in the housing 102. However, the filter section 104 is not limited to the example shown in Figure 1, and may be provided with other configurations for removing dust.

[0020] As shown in Figure 1, the temperature control section 106 is primarily responsible for adjusting the temperature of the air taken into the air handling unit 100. As an example, the temperature control section 106 has coiled piping through which cooling water or heating water flows. Therefore, the air flowing from the filter section 104 into the temperature control section 106 is heated or cooled by the cooling water or heating water. Note that the example shown in Figure 1 is not the only possible configuration for changing the air temperature in the temperature control section 106; other methods may also be used.

[0021] As shown in Figure 1, the humidity control section 108 is primarily responsible for adjusting the humidity of the air taken into the air handling unit 100. As an example, the humidity control section 108 includes the humidity control module 120 described herein. Therefore, the air flowing from the temperature control section 106 into the humidity control section 108 has its humidity adjusted by the humidity control module 120. The specific configuration and operation of the humidity control module 120 will be described later.

[0022] As shown in Figure 1, the fan section 110 is the part that circulates air inside the air handling unit 100. For example, the fan section 110 uses a fan installed in the partition wall 102S to circulate air from the filter section 104 to the humidity control section 108. The fan in the fan section 110 also exhausts the air inside the housing 102 to the outside through the exhaust port 102O.

[0023] Next, the specific configuration and operation of the humidity control module 120 in this embodiment will be described with reference to Figures 2 to 4.

[0024] (Humidity Control Module 120) Figure 2 shows a perspective view of the humidity control module 120 in this disclosure. Figure 3 shows a cross-sectional view of the humidity control module 120 in this disclosure. As shown in Figures 2 and 3, the humidity control module 120 comprises a gas-liquid contact module 130 and a liquid recovery unit 150. In the example shown in Figure 3, air flows from left to right in the drawing.

[0025] As shown in Figure 3, the gas-liquid contact module 130 includes a humidity control liquid introduction section 132 for introducing humidity control liquid, a gas-liquid contact section 134 through which the humidity control liquid flows, and a humidity control liquid discharge section 138.

[0026] As shown in Figure 3, the humidity control liquid introduction section 132 is located at the top of the gas-liquid contact module 130 and is the part into which the humidity control liquid is introduced from the outside. The humidity control liquid introduced from the humidity control liquid introduction section 132 flows to the gas-liquid contact section 134 by gravity.

[0027] The gas-liquid contact section 134 is located below the humidity control liquid introduction section 132 and is the part through which the humidity control liquid flows downward due to gravity. The gas-liquid contact section 134 can have any configuration as long as it allows the humidity control liquid to flow down, but as an example, a resin component is configured such as a honeycomb structure to increase the contact area between the gas-liquid contact section 134 and the air. As shown in Figure 3, the air introduced into the temperature control section 106 is flowed from the air supply port 132I to the exhaust port 132O of the gas-liquid contact module 130, thereby coming into contact with the humidity control liquid flowing along the gas-liquid contact section 134.

[0028] The liquid recovery unit 150 comprises a tank 136 and a gas-liquid separator 140. The liquid recovery unit 150 is used to separate and recover droplets of the humidifying liquid contained in the air discharged from the exhaust port 132O of the gas-liquid contact module 130 from the air.

[0029] As shown in Figure 3, the tank 136 is a component located below the gas-liquid contact section 134, and is the part where the humidity-regulating liquid that flows down along the gas-liquid contact section 134 accumulates. In this embodiment, as shown in Figure 3, the tank 136 is the part of the housing of the gas-liquid contact module 130 that is below the gas-liquid contact section 134, the air intake port 132I, and the exhaust port 132O, and is the part where the humidity-regulating liquid that adheres to the inner surface of the housing of the gas-liquid contact module 130 flows down. As shown in Figure 3, the tank 136 is provided with a humidity-regulating liquid discharge section 138. The humidity-regulating liquid accumulated in the tank 136 is discharged to the outside of the gas-liquid contact module 130 by the humidity-regulating liquid discharge section 138.

[0030] As shown in Figure 3, the tank 136 is located below the exhaust port 132O. Therefore, droplets adhering to the inside of the exhaust port 132O, i.e., the inner surface of the housing of the gas-liquid contact module 130, flow down into the tank 136 due to gravity.

[0031] In this embodiment, the humidity control liquid may include, for example, lithium chloride and water. Lithium chloride is used as a humidity control agent because it is hygroscopic. One type of humidity control agent may be used, or two or more types may be used.

[0032] A humidity control solution containing a humidity control agent and water controls the vapor pressure of the vapor-liquid equilibrium by controlling its concentration, thereby controlling the humidity of the air. For example, if the humidity of the air is high, the concentration of the humidity control agent in the solution is increased by heating the solution to evaporate the water, and the concentrated humidity control agent absorbs moisture from the air, lowering the humidity. On the other hand, if the humidity of the air is low, the concentration of the humidity control agent in the solution is decreased by supplying water to the solution, and the humidity is increased by adding moisture to the air with the reduced concentration of the solution.

[0033] Therefore, at the gas-liquid contact section 134, the air and the humidity-regulating liquid come into contact, and the humidity of the air introduced into the temperature control section 106 is adjusted. More specifically, when dehumidifying the air, the gas-liquid contact module 130 brings the air into contact with the humidity-regulating liquid, which has a gas-liquid equilibrium vapor pressure lower than that of the air, to dehumidify the air. When humidifying the air, the gas-liquid contact module 130 brings the air into contact with the humidity-regulating liquid, which has a gas-liquid equilibrium vapor pressure higher than that of the air, to humidify the air.

[0034] Although not shown in Figures 1 to 4, the humidity control liquid discharged from the humidity control liquid discharge section 138 is subjected to moisture adjustment by a regenerator (not shown). The humidity control liquid, with its temperature and concentration adjusted, is then supplied again to the humidity control liquid inlet section 132.

[0035] As shown in Figures 2 and 3, the gas-liquid separator 140 is attached to the exhaust port 132O of the gas-liquid contact module 130. In other words, the gas-liquid separator 140 blocks the exhaust port 132O of the gas-liquid contact module 130. Furthermore, as shown in Figures 2 to 4, the gas-liquid separator 140 is composed of multiple collection structures 160 arranged vertically. Each collection structure 160 comprises a collection material 162, a side wall 172, and a guide 170.

[0036] The collection material 162 is a component that collects the humidity control liquid that has turned into droplets in the air when air is passed through it. In this embodiment, the collection material 162 is a general term for what are called mist eliminators, mist separators, demisters, etc. The collection material 162 can be made of thread-like material woven into a mesh, and its material and structure are not limited as long as it is capable of collecting droplets in the air (specifically, droplets floating with the airflow AD). Furthermore, the material of the collection material 162 can be various metals, resins, etc., and can be freely selected according to the physical properties, corrosiveness, and temperature of the droplets to be collected.

[0037] Furthermore, as shown in Figures 2 to 4, the collecting material 162 is arranged to extend horizontally. The collecting material 162 may be fixed in any way, but as an example, as shown in Figures 3 and 4, it is fixed by being sandwiched at the top and bottom by the frame 164.

[0038] The side walls 172 are members positioned on both sides of the collecting material 162 in the horizontal direction, as shown in Figures 2 to 4. In other words, the side walls 172 are members that close both sides of the vertically arranged collecting material 162 in the horizontal direction. The side walls 172 may be attached to the exhaust port 132O to hold the frame 164. The side walls 172 may be made of any material, but as an example, they are made of a hard material that does not easily deform, such as metal or acrylic resin.

[0039] The guide 170 is positioned below the collecting material 162 and is a component that guides horizontally flowing air toward the collecting material 162. More specifically, the guide 170 guides the horizontally flowing air that flows out from the exhaust port 132O of the gas-liquid contact module 130 toward the collecting material 162 which is positioned above the guide 170. In other words, in the collecting structure 160, the air flows upward along the guide 170. The guide 170 can be made of any material that can guide the air toward the collecting material 162, but as an example, it is made of a hard material that does not easily deform, such as metal or acrylic resin.

[0040] Furthermore, the guide 170 is tilted upward on the downstream side of the airflow AD, i.e., the right side in Figures 3 and 4, compared to the upstream side of the airflow AD, i.e., the left side in Figures 3 and 4.

[0041] In the gas-liquid separator 140, the liquid droplets contained in the air collected by the collecting material 162 flow downward due to gravity. In this embodiment, the liquid droplets contained in the air collected by the collecting material 162 of the gas-liquid separator 140 are transferred from the collecting material 162 to the guide 170, and then flow down from the guide 170 through the exhaust port 132O to the tank 136.

[0042] More specifically, when droplets are collected by the collecting material 162, they flow down the frame 164 to the guide 170. Also, as shown in Figure 4, the upstream side of the airflow AD is positioned downwards in the guide 170, so droplets are collected at the lower end of the guide 170 (the left end in Figure 4). As droplets are collected at the lower end of the guide 170, they drip down onto the collection structure 160 below the one stacked vertically. In this order, the droplets collected on the guide 170 of the lowest collection structure 160 flow from the exhaust port 132O along the inner surface of the housing of the gas-liquid contact module 130 to the tank 136.

[0043] (Humidity adjustment and airflow AD) In ​​this embodiment, as described above, in the humidity control module 120, air whose humidity has been adjusted by contact with the humidity control liquid at the gas-liquid contact section 134 flows. As shown in Figure 3, the air whose humidity has been adjusted by the gas-liquid contact section 134 may flow containing the humidity control liquid that it has come into contact with at the gas-liquid contact section 134. More specifically, the humidity-adjusted air may contain droplets that float with the airflow AD (hereinafter referred to as "small droplets SD") and droplets that are blown away by the airflow AD and fall due to gravity (hereinafter referred to as "large droplets LD").

[0044] Here, as described above, since the small droplets SD move together with the air flow AD, they will be collected by each collection material 162 of the collection structure 160. The small droplets SD collected by the collection material 162 flow down to the tank 136 along the guide 170 as described above.

[0045] On the other hand, since the large droplets LD are blown off from the gas-liquid contact part 134 by the air flow AD, they collide with the upper surface side of the guide 170 without following the guidance of the air by the guide 170 in the gas-liquid separator 140. The large droplets LD attached to the guide 170 flow down to the tank 136 along the guide 170 as described above.

[0046] As shown in FIG. 3, the air guided upward by the guide 170 and passing through the collection material 162 is guided horizontally by the lower surface side of the guide 170 of the collection structure 160 one above the collection structure 160 provided with the collection material 162. In other words, the guide 170 provided in the collection structure 160 guides the air toward the collection material 162 of the collection structure 160 and also guides the air flowing from the collection material 162 disposed one below the collection structure 160.

[0047] Subsequently, the problems solved by the gas-liquid separator 140 and the humidity control module 120 in the present embodiment, and the actions and effects of the gas-liquid separator 140 and the humidity control module 120 will be described.

[0048] (Problems to be Solved, Operations and Effects of Gas-Liquid Separator 140 and Humidification Module 120) Regarding the gas-liquid separator 140 that collects small droplets SD contained in horizontally flowing air, when a single collection material 162 for collecting small droplets SD is arranged horizontally, the horizontal size of the gas-liquid separator 140 increases. The reason is that the superficial air velocity of the air passing through the collection material 162 is determined by the type, particle diameter, etc. of the small droplets SD contained in the air. In other words, since the superficial air velocity of the air passing through the collection material 162, that is, the area of the collection material 162 with respect to the air flow rate, needs to correspond to the air flow rate, it is not possible to only reduce the area of the collection material 162 with respect to the air flow rate. Therefore, when only one collection material 162 for collecting small droplets SD contained in the air is arranged horizontally, the horizontal size of the gas-liquid separator 140 becomes large.

[0049] Further, in order to suppress the horizontal size of the gas-liquid separator 140, when the collection material 162 is tilted other than horizontally and then arranged close to the exhaust port 132O of the gas-liquid contact module 130, if large droplets LD are contained in the air, problems such as the large droplets LD adhering to the collection material 162 and the collection ability of the collection material 162 decreasing may occur. Specifically, when the large droplets LD adhere to the collection material 162, the collection material 162 may become clogged, making it difficult for air to pass through the collection material 162 (the pressure loss when air passes through the collection material 162 may increase). Also, depending on the type of droplet component, miscellaneous bacteria may multiply inside the droplet while adhering to the collection material 162. Additionally, the large droplets LD adhering to the collection material 162 may scatter outside the humidification module 120 due to the air flow AD.

[0050] Further, in order to prevent such large droplets LD from adhering to the collection material 162, when a single collection material 162 is horizontally separated from the exhaust port 132O of the gas-liquid contact module 130, the horizontal size of the humidification module 120 becomes large.

[0051] In this embodiment, the gas-liquid separator 140 has a collection structure 160 composed of a horizontally extending collection material 162 and a guide 170 located below the collection material 162 that guides the gas flowing horizontally toward the collection material 162. Multiple collection structures 160 are arranged in the vertical direction. As a result, large liquid droplets LD contained in the gas adhere to the guide 170, making it difficult for them to adhere to the collection material 162. Therefore, the gas-liquid separator 140, which collects liquid droplets contained in gas, can suppress the horizontal size while preventing large liquid droplets LD from adhering to the collection material 162.

[0052] From another perspective, the gas-liquid separator 140 in this embodiment makes it easier to secure the surface air velocity of the air passing through the collecting material 162, even if there are limitations on the horizontal size, due to the multiple collection structures 160 arranged in the vertical direction. In other words, the gas-liquid separator 140 in this embodiment offers greater design flexibility compared to the case where only one collecting material 162 is arranged horizontally.

[0053] As explained above, the guide 170 guides the airflow AD in the collection structure 160 toward the collecting material 162 (i.e., upward), and also guides the airflow AD that has passed through the collecting material 162 of the collection structure 160 located one level below it in the horizontal direction. In other words, the guide 170 determines the airflow path toward the collecting material 162 in the collection structure 160 having the guide 170, and the airflow path that has passed through the collecting material 162 of the collection structure 160 located one level below it.

[0054] In this configuration, the guides 170 constituting each collection structure 160 of the gas-liquid separator 140 are inclined upward from the upstream to the downstream side of the airflow AD. Therefore, this configuration of the gas-liquid separator 140 makes it easier to balance the resistance of the airflow toward the collection material 162 with the resistance of the airflow passing through the collection material 162. Furthermore, this configuration of the gas-liquid separator 140 makes it difficult to create air vortices because the guides 170 smoothly change the direction of the airflow. Therefore, pressure loss can be reduced compared to the case where the guides 170 are horizontal from the upstream to the downstream side of the airflow AD.

[0055] Furthermore, the humidity control module 120 includes a gas-liquid contact module 130 in which air and humidity control liquid come into contact, and a liquid recovery unit 150 that recovers the humidity control liquid, which is the liquid droplets contained in the gas flowing out of the gas-liquid contact module 130. With this liquid recovery unit 150, it is possible to suppress the horizontal size of the liquid recovery unit 150 that collects the liquid droplets contained in the gas flowing out of the gas-liquid contact module 130, while suppressing the adhesion of large liquid droplets LD to the collection material 162. In other words, the humidity control module 120 can suppress the horizontal size while suppressing the adhesion of large liquid droplets LD to the collection material 162.

[0056] [Other Embodiments] In the above description, a humidity control module 120 having a gas-liquid separator 140 has been described, but the technology of this disclosure is not limited to this. For example, the technology of this disclosure may include a configuration in which a gas-liquid separator 140 is provided for a three-fluid heat exchanger in which heat exchange takes place between three fluids: a heat transfer fluid, air, and a humidity control liquid, and the humidity control liquid flowing out of the three-fluid heat exchanger is collected. In other words, the three-fluid heat exchanger is an example of a "gas-liquid contact section" in this disclosure. Furthermore, a liquid desiccant unit having a three-fluid heat exchanger and a regenerator for recovering the humidity control liquid discharged from the three-fluid heat exchanger is another embodiment of the "humidity control module" in this disclosure.

[0057] Furthermore, in the above description, the guide 170 was inclined from the upstream side to the downstream side of the airflow AD. In this disclosure, the guide 170 may be arranged horizontally in the collection structure 160. In this case as well, with respect to the gas-liquid separator 140 that collects droplets contained in the gas, it is possible to suppress the horizontal size while preventing large droplets LD from adhering to the collection material 162.

[0058] Furthermore, in the above description, the multiple collection structures 160 all had the same configuration. In this disclosure, the collection structures 160 are not particularly limited in number or shape, as long as they are provided with a collection material 162 and a guide 170 and have the functions described above. In other words, the gas-liquid separator 140 in this disclosure may have multiple collection structures 160 arranged vertically, each having a different shape.

[0059] For example, in the above description, the guides 170 of the multiple collection structures 160 were all the same shape. However, the guide 170 of the collection structure 160 located at the bottom of the multiple collection structures 160 may be shaped to bulge outwards toward the back side (i.e., the side opposite to the side from which the air collides), thereby smoothly guiding the direction of the airflow AD. In this case, the pressure loss of the air passing through the collection structure 160 located at the bottom can be reduced.

[0060] Furthermore, in the above description, the gas-liquid separator 140 was provided in the gas-liquid contact module 130. The gas-liquid separator 140 can also be used to separate liquid droplets contained in a gas, in addition to being provided in the gas-liquid contact module 130.

[0061] Furthermore, in the above description, the tank 136 of the liquid recovery unit 150 was configured to also store the humidity-regulating liquid that flows down from the gas-liquid contact module 130 (more specifically, the gas-liquid contact section 134). In other words, in the above description, the tank 136 was used for both storing the humidity-regulating liquid that flows down from the gas-liquid contact section 134 and storing the humidity-regulating liquid that flows down from the gas-liquid separator 140. In the technology relating to this disclosure, the liquid recovery unit 150 may be configured to have a separate tank for storing the humidity-regulating liquid separated by the gas-liquid separator 140, in addition to the gas-liquid contact module 130.

[0062] Furthermore, in the above description, the liquid recovery unit 150 was provided in the humidity control module 120. The liquid recovery unit 150 can be used to recover liquid droplets contained in a gas in places other than the humidity control module 120. For example, it may be used in a fluid heat exchanger whose purpose is not humidity control, but solely for the purpose of heating or cooling air.

[0063] While embodiments of this disclosure have been described above with reference to the attached drawings, it is clear that any person with ordinary skill in the art to which this disclosure belongs could conceive of various modifications or applications within the scope of the technical idea described in the claims, and these too are naturally understood to fall within the technical scope of this disclosure.

[0064] The disclosure of Japanese Patent Application No. 2025-008677, filed on 21 January 2025, is incorporated herein by reference in its entirety. All documents, patent applications, and technical standards described herein are incorporated herein by reference to the same extent as the individual documents, patent applications, and technical standards are incorporated herein by reference in the same manner as the individual documents, patent applications, and technical standards are incorporated herein by reference in the same manner as described herein.

[0065] Further preferred embodiments of this disclosure are shown below.

[0066] (Note 1) A gas-liquid separator comprising a collection structure arranged vertically, each collection structure having a collection material extending horizontally and collecting droplets contained in the gas when the gas is passed through it, and a guide located below the collection material and guiding the gas flowing horizontally toward the collection material.

[0067] (Note 2) The gas-liquid separator described in Note 1, wherein the guide is inclined upward from the upstream side to the downstream side in the direction of gas flow.

[0068] (Note 3) A humidity control module comprising: a gas-liquid contact module in which air and humidity control liquid come into contact; and a gas-liquid separator as described in Note 1 or Note 2 for collecting the humidity control liquid, which is a droplet contained in the gas flowing out of the gas-liquid contact module.

[0069] 100 Air handling unit 102 Housing 102I Air intake 102O Exhaust 102S Partition wall 104 Filter section 106 Temperature control section 108 Humidity control section 110 Fan section 120 Humidity control module 130 Gas-liquid contact module 132I Air intake 132O Exhaust 132 Humidity control liquid introduction section 134 Gas-liquid contact section 136 Tank 138 Humidity control liquid discharge section 140 Gas-liquid separator 150 Liquid recoverer 160 Collection structure 162 Collection material 164 Frame 170 Guide 172 Side wall

Claims

1. A gas-liquid separator comprising a plurality of collection structures arranged vertically, each collection structure having a collecting material extending horizontally to collect droplets contained in the gas when the gas is passed through it, a guide located below the collecting material to guide the gas flowing horizontally toward the collecting material, and side walls that close both sides of other horizontal directions intersecting the horizontal direction between the collecting material and the guide; and a tank for collecting a humidity control liquid separated from the gas and flowing down the guide.

2. The liquid recovery device according to claim 1, wherein the guide is inclined upward from the upstream side to the downstream side in the direction of gas flow.

3. A humidity control module comprising: a gas-liquid contact module in which air and humidity control liquid come into contact; and a liquid recovery device according to claim 1 or 2 for recovering the humidity control liquid, which is a droplet contained in the gas flowing out from the gas-liquid contact module.