Active substance supply device and air conditioning system

Abstract

To provide an air conditioning system capable of spreading an active substance on humans throughout a living room.SOLUTION: An active substance supply device for supplying an active substance to act on humans in a living room to air supplied from an air conditioner, is configured to comprise a storage tank that stores a liquid active substance, and a water absorber made of a porous material, which is provided in a duct and is impregnated with the liquid active substance stored in the storage tank.SELECTED DRAWING: Figure 2

Description

[Technical field]

[0001] The present invention relates to an active substance supplying device and an air conditioning system, and more particularly to an active substance supplying device and an air conditioning system capable of distributing an active substance to humans throughout a room. [Background technology]

[0002] It has been known that vaporizing substances that have an effect on humans, such as natural plant-derived essential oils, in a room can lead people to a positive physical or mental state due to the efficacy of the ingredients, and can provide healing, relaxation, etc. For example, as shown in Patent Document 1, a device is known in which essential oil or diluted oil contained in the container body of an aroma diffuser is sucked up by a wick material, absorbed into a water absorbent whose surface is exposed to the outside from the wick material, and the essential oil absorbed in the water absorbent is vaporized in the room by the wind blowing from the bottom to the top of the oil container by a blower fan. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2016-73464 A Summary of the Invention [Problem to be solved by the invention]

[0004] However, an apparatus such as that disclosed in Patent Document 1 has a problem in that the concentration distribution of the vaporized active substance within the living room becomes uneven. The present invention has been made in consideration of the above problems, and has an object to provide an active substance supplying device and an air conditioning system that are capable of distributing an active substance for people throughout a room. [Means for solving the problem]

[0005] As a configuration of an active substance supplying device for solving the above problems, the active substance supplying device supplies an active substance to be applied to people in a room to air sent from an air conditioner through a duct to the room, and includes a storage tank for storing a liquid active substance, and a first water absorbent made of a porous material that is provided in the duct and is impregnated with the liquid active substance stored in the storage tank, The duct is made of a porous material that can absorb the liquid active substance impregnated in the first absorbent body from the absorbent body, The first water absorber is provided along the inner circumference of the duct and is configured to be in contact with the inner circumference of the duct. According to this configuration, when the air sent from the air conditioner flows through the duct, the liquid active substance impregnated in the first water-absorbing body is vaporized and sent to the room, so that the active substance for people can be distributed throughout the room. Furthermore, the first absorbent may be provided with a convex portion that contacts the inner circumference of the duct and a concave portion that forms a gap between the inner circumference of the duct and the convex portion in the circumferential direction along the inner circumference of the duct, may be adjustable to expand and contract in the extension direction of the duct, or may be bellows-shaped or spiral-shaped to expand and contract in the extension direction of the duct. Also, a second water absorber may be provided across the air flowing through the duct. The first water absorbent body may be provided with through holes through which the air flowing through the duct can pass. In order to solve the above problem, an air conditioning system is provided that includes the active substance supply device according to any one of claims 1 to 6. It's a good idea to do so. [Brief description of the drawings]

[0006] [Figure 1] FIG. 1 is a schematic diagram of an air conditioning system. [Diagram 2] FIG. 2 is a diagram showing a configuration example of an active substance supplying device. [Diagram 3] FIG. [Figure 4] FIG. 2 is a diagram showing the shape of an annular water absorbent body. [Diagram 5] FIG. [Figure 6] FIG. 13 is a diagram showing another embodiment of the supply unit. [Figure 7]FIG. 13 is a diagram showing another embodiment of the supply unit. [Figure 8] 13A and 13B are diagrams showing other shapes of the annular water absorbent body.

[0007] The present invention will be described in detail below through embodiments, but the following embodiments do not limit the invention according to the claims, and all of the combinations of features described in the embodiments are not necessarily essential to the solution of the invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0008] FIG. 1 is a schematic diagram showing an example of an air conditioning system provided with an active substance supplying device according to this embodiment, and FIG. 1(a) and FIG. 1(b) show cross sections of a room 2 that are perpendicular to each other. The air conditioning system 1 shown in Figure 1 is a so-called under-floor air conditioning device, and is configured to circulate air by sending hot and cold air, the temperature and humidity of which have been adjusted from an air conditioner 3 installed outside a living room 2 to an under-floor space 6 installed under a floor 5 of the living room 2 through a duct 4, and blowing the air into the living room 2 as supply air through an air outlet 7 installed in the floor 5, and taking in air from within the living room 2 through an intake port 9 installed in a wall 8 of the living room 2 and returning it to the air conditioner 3 through a duct 10.

[0009] The living space 2 is partitioned as one space by the floor 5, walls 8, ceiling 11, etc. The floor 5 is supported by support members 16 provided on a concrete slab 15 at a predetermined distance from the concrete slab 15 provided on a main beam 14, and forms an underfloor space 6 between the floor 5 and the concrete slab 15. The floor 5 is formed, for example, by closely adhering a floor base substrate 17 and a floor finishing material 18. A heat insulating material 19, etc. is attached to the surface of the concrete slab 15 facing the floor 5.

[0010] In this embodiment, the duct 4 is composed of, for example, a ventilation duct 12 extending from the air conditioner 3 to the vicinity of the underfloor space 6, and an expansion / contraction duct 13 connected to the ventilation duct 12 and provided in the underfloor space 6. The ventilation duct 12 is a pipe made of metal, resin, or the like, through which hot and cold air sent from the air conditioner 3 passes.

[0011] The expansion / contraction duct 13 is provided to extend into the underfloor space 6, specifically between the above-mentioned heat insulating material 19 and the floor base substrate 17. The expansion / contraction duct 13 is made of a porous material such as a flexible cloth or nonwoven fabric. The expansion / contraction duct 13 has an opening / closing mechanism such as a fastener, and is configured to be deformable into a cylindrical shape by closing the fastener and into a sheet shape by opening the fastener. Furthermore, a fastener is provided at the end of the expansion / contraction duct 13 to allow the end to be closed in a cylindrical state. When the expansion / contraction duct 13 is formed into a cylindrical shape, one end is connected to the ventilation duct 12, and the other end is closed to form a bag shape. Such an expansion / contraction duct 13 is called, for example, a so-called sock duct.

[0012] The expansion / contraction duct 13 is in a deflated state before air flows in, and expands as shown in Fig. 1 when air flows in from the ventilation duct 12. The air that has flowed into the expansion / contraction duct 13 is blown out into the underfloor space 6 while expanding the expansion / contraction duct 13 so as to seep out from the pores formed by the mesh of fibers such as cloth or nonwoven fabric.

[0013] The air outlet 7 is provided in the floor 5 so as to communicate between the underfloor space 6 and the living room 2. For example, a fan 7A is provided in the air outlet 7, and the air blown out from the expansion / contraction duct 13 is sent from the underfloor space 6 to the living room 2 by the operation of the fan 7A. Note that the fan 7A is not essential. Also, the air outlet 7 may be eliminated, and the floor base substrate 17 and floor finishing material 18 forming the floor 5 may have a plurality of holes penetrating from the underfloor space 6 to the living room 2.

[0014] The air inlet 9 is provided, for example, on a wall surface as an opening for taking in air after heat exchange with the air in the living room 2. A duct 10 connecting the air conditioner 3 and the living room 2 is connected to the air inlet 9. The duct 10 is composed of a pipe made of metal, resin, or the like, similar to the ventilation duct 12.

[0015] The air conditioning system 1 described above includes an active substance supplying device 30 that adds an active substance acting on humans to the air sent from the air conditioner 3. The active substance acting on humans here refers to a volatile solution L that contains, for example, a fragrance component, a deodorizing component, a disinfecting component, a bactericidal component, or the like. Examples of such a solution L include a phytoncide solution, a disinfectant spray material, a deodorizer, and an aromatic agent.

[0016] FIG. 2 is a schematic diagram of the active substance supplying device 30. As shown in FIG. 2, the active substance supplying device 30 includes a supplying section 31 that supplies an active substance to the air flowing through the expansion / contraction duct 13, a solution tank 32 that supplies solution L to the supplying section 31, and a control section 33 that controls the supply of solution L from the solution tank 32 to the supplying section 31. The supplying section 31 is provided inside the expansion / contraction duct 13, and the solution tank 32 and the control section 33 are provided outside the expansion / contraction duct 13.

[0017] FIG. 3 is a diagram showing a supply unit 31 according to the present embodiment. The supply part 31 is formed in a generally circular ring shape as a whole, and, for example, its outer periphery is in contact with the inner periphery of the expansion / contraction duct 13, allowing air flowing in from the ventilation duct 12 to pass through the inner periphery. The supply part 31 has an outer diameter dimension that corresponds to the inner diameter dimension when the expansion / contraction duct 13 is maximally expanded and that can be held by the inner periphery of the expansion / contraction duct 13.

[0018] The supply unit 31 includes, for example, a solution pipe 34 and an annular water absorbent 35 . As shown in FIG. 3(a), the solution pipe 34 is formed in a roughly circular ring shape and constitutes a base in the supply section 31. The solution pipe 34 is formed, for example, so that the inner periphery side is formed in a single circle and the outer periphery side has an appearance of a combination of semicircles with different radii. On the outer periphery side of the solution pipe 34, the semicircle side with the smaller radius is called the small diameter section 38, and the semicircle side with the larger radius is called the large diameter section 39. The large diameter section 39 is set to a dimension that allows it to come into close contact with the inner periphery surface when the expansion / contraction duct 13 is expanded. The outer periphery wall 38o forming the small diameter section 38 and the outer periphery wall 39o of the large diameter section 39 are connected via connecting walls 41;41.

[0019] As shown in FIG. 3(b) (cross section k-k in FIG. 3(a)), the solution pipe 34 has a rectangular hollow portion 40 in a radial cross section. The hollow portion 40 forms a space that continues from the small diameter portion 38 to the large diameter portion 39. The connecting walls 41, 41 are formed, for example, in a planar shape and are provided so as to be positioned on the same plane cutting the solution pipe 34 in the radial direction. As shown in FIG. 3(c), each connecting wall 41 has a rectangular opening 41m that penetrates into the hollow portion 40 on the large diameter portion 39 side. The annular water absorber 35 described later is inserted into the hollow portion 40 from this opening 41m.

[0020] The small diameter portion 38 has a through hole 38H in the outer circumferential wall 38o that penetrates into the hollow portion 40. In this embodiment, the through hole 38H is provided at the highest position of the small diameter portion 38 when the connecting walls 41, 41 are placed in a horizontal position with the large diameter portion 39 facing down. A pipe 45 for allowing the solution L to flow into the hollow portion 40 is attached to the through hole 38H. A tube 43 extending from the solution tank 32 is connected to the pipe 45.

[0021] 4, the annular water absorbent 35 is made of a porous material such as felt so as to have water absorption properties, and is formed, for example, in a C-shape with a portion cut out in the circumferential direction. The cross-sectional shape of the annular water absorbent 35 intersecting the extension direction is formed, for example, in a rectangular shape that matches the opening shape of the opening 41m.

[0022] The annular water absorber 35 is inserted into the hollow portion 40 on the large diameter portion 39 side from the opening 41m of one connecting wall 41. The annular water absorber 35 inserted into the hollow portion 40 is exposed again from the opening 41m of the other connecting wall 41 along the inner circumferential surface of the outer circumferential wall 39o of the large diameter portion 39, and is disposed so as to sandwich the pipe 45 along the outer periphery of the small diameter portion 38. As a result, with a part of the annular water absorber 35 inserted into the hollow portion 40, the other part is exposed along the outer circumferential wall 38o of the small diameter portion 38.

[0023] The supply unit 31 is connected to the solution tank 32 via a tube 43. The solution tank 32 stores the solution L and supplies the solution L to the supply unit 31. The solution tank 32 functions as a main tank for storing the solution L in the active substance supply device 30, and the solution pipe 34 functions as a sub-tank.

[0024] 2, the control unit 33 is a device for controlling the state of an acting substance on a person in the room 2. The control unit 33 includes, for example, a valve 46, a control unit 47, and a sensor 48 and a sensor 49. The valve 46 is provided midway through the tube 43. The valve 46 opens and closes based on, for example, an electrical signal input from the control unit 47, and controls the supply of the solution L from the solution tank 32 to the solution pipe 34.

[0025] The control unit 47 is a so-called computer having a CPU as a calculation means and a ROM, RAM, etc. as a storage means. The control unit 47 is electrically connected to the valve 46, the sensor 48, and the sensor 49, and controls the opening and closing of the valve 46 based on signals input from the sensors 48 and 49. The sensor 48 is provided in the living room 2, and detects the concentration of the vaporized solution L contained in the air in the living room 2. The sensor 49 is provided in the supply unit 31, and detects the amount of the solution L in the solution tube 34.

[0026] According to the above-mentioned control unit 33, for example, the supply of the active substance to the living room 2 can be operated as follows. When the concentration of the vaporized solution L contained in the air in the living room 2 detected by the sensor 48 is greater than a threshold value, the control unit 33 closes the valve 46 to stop the supply of the solution L to the solution pipe 34. This reduces the amount of the solution L in the solution pipe 34, and the volume of the annular water absorbent 35 impregnated with the solution L in the solution pipe 34 is reduced, thereby making it possible to lower the concentration of the active substance in the living room 2.

[0027] When the concentration of vaporized solution L contained in the air in room 2 is equal to or lower than a threshold value, control unit 33 starts supplying solution L to solution pipe 34 by opening valve 46. This supply of solution L to solution pipe 34 increases the amount of solution L in solution pipe 34, and the liquid level rises. This increases the volume of annular water absorber 35 impregnated with solution L in solution pipe 34, and increases the amount of solution L absorbed by annular water absorber 35, thereby making it possible to increase the concentration of the active substance in room 2.

[0028] When the amount of solution detected by sensor 49 reaches the maximum amount of solution that can be stored in solution pipe 34, control unit 33 closes valve 46 to stop the supply of solution L to solution pipe 34. The maximum amount of solution is set, for example, to a height that prevents the solution from leaking out of the opening of solution pipe 34 where annular water absorbent 35 is exposed. When the amount of solution stored in the solution tube 34 is less than the maximum amount possible, the valve 46 is controlled based on the sensor 48 .

[0029] The control of the supply of the solution L from the solution tank 32 to the supply unit 31 by the control unit 33 is not limited to the above-mentioned configuration, and may be changed as appropriate.

[0030] The active substance supply device 30 will be described below. The supply unit 31 is disposed in the expansion / contraction duct 13 by opening a fastener (opening / closing mechanism) provided in the expansion / contraction duct 13. When the supply unit 31 is disposed in the expansion / contraction duct 13, the outer periphery of the supply unit 31 contacts the inner periphery of the expansion / contraction duct 13, and the air sent from the air conditioner 3 flows through the space on the inner periphery side of the supply unit 31. As a result, the annular water absorber 35 exposed on the outer periphery of the small diameter part 38 of the solution pipe 34 contacts the expansion / contraction duct 13. When the annular water absorber 35 exposed on the outer periphery of the small diameter part 38 of the solution pipe 34 is disposed in the expansion / contraction duct 13, it is in contact with the expansion / contraction duct 13, and this state is maintained even when the expansion / contraction duct 13 is expanded. The tube extending from the solution tank 32 to the supply unit 31 is exposed to the outside of the expansion / contraction duct 13 by opening a part of the fastener of the expansion / contraction duct 13.

[0031] Then, by the operation of the control unit 33, a predetermined amount of solution L is supplied from the solution tank 32 to the supply unit 31, and the solution L penetrates the entire annular water absorbent 35 due to the capillary phenomenon of the annular water absorbent 35, and further seeps into the expansion / contraction duct 13 from the contact surface between the annular water absorbent 35 and the expansion / contraction duct 13.

[0032] Then, as shown in FIG. 5, the solution L that has soaked into the expansion / contraction duct 13 is vaporized by the cold or hot air from the air conditioner 3 passing through the expansion / contraction duct 13, and is sent from the outlet 20 of the expansion / contraction duct 13 through the underfloor space 6 and the fan 7A to the air outlet 7 into the living room 2 together with temperature- and humidity-controlled air.

[0033] The air containing the solution L sent into the room 2 circulates within the room 2, and the active substance can be distributed evenly within the air room 2.

[0034] As described above, according to the air conditioning system 1, the active substance is vaporized and mixed with the air sent from the air conditioner 3 to the expansion / contraction duct 13, blown out from the outlet 20 of the expansion / contraction duct 13 into the underfloor space 6, diffused in the underfloor space 6, and sent into the living room 2. This allows the active substance to be distributed evenly throughout the living room 2 together with the air whose temperature, humidity, etc. have been adjusted by the air conditioner 3, and makes it possible to uniform the concentration distribution within the living room 2.

[0035] In the above-described embodiment, the air conditioning system 1 in which the active substance supplying device 30 is provided is described as being installed in an expansion / contraction duct 13 provided as under-floor air conditioning, but this is not limited to under-floor air conditioning, and for example, the expansion / contraction duct 13 may be suspended from the ceiling of the room 2 or provided in the attic, etc.

[0036] Further, the configuration of the supply unit 31 is not limited to that shown in the above-mentioned embodiment, and for example, as shown in Fig. 6, a rod-shaped water absorber (hereinafter, rod-shaped water absorber) 36 may be provided so as to cross the air flowing on the inner periphery side of the solution pipe 34. In this case, for example, holes may be made in the inner periphery wall 34i of the solution pipe 34 so that the rod-shaped water absorber 36 is immersed in the liquid level when the maximum amount of solution L is stored in the solution pipe 34, and both ends of the rod-shaped water absorber 36 may be inserted into the hollow portion 40. This allows a larger amount of the active substance to be vaporized in the air flowing in the expansion / contraction duct 13, and the active substance can be supplied into the living room 2.

[0037] In addition to the annular water absorber 35 in contact with the expansion / contraction duct 13, a single rod-shaped water absorber 36 is provided across the air flowing through the expansion / contraction duct 13 in the above description, but a plurality of such absorbers may be provided, or either the annular water absorber 35 or the rod-shaped water absorber 36 may be provided.

[0038] Further, the number of supply parts 31 provided in the expansion / contraction duct 13 is not limited to one, and a plurality of supply parts may be provided.

[0039] In the above embodiment, the annular water absorber 35 is configured to fit along the outer periphery of the small diameter portion 38 of the solution pipe 34, but the present invention is not limited to this. For example, as shown in Fig. 7(a), the water absorber 350 may be spirally shaped, and as shown in Fig. 7(b), one end of the water absorber 350 may be connected to the solution L stored in the solution pipe 34 and the spiral portion may be arranged to extend along the extension direction of the expansion / contraction duct 13.

[0040] Furthermore, for example, when two supply parts 31 are provided, as shown in FIG. 7(a), the absorbent 350 that absorbs the solution L is made spiral (hereinafter referred to as a spiral absorbent) having a diameter that can contact the inner circumference of the expansion / contraction duct 13, and as shown in FIG. 7(c), one end side is inserted into the solution L stored in one solution tube 34, and the other end side is inserted into the solution L stored in the other solution tube 34, so that the absorbent 350 can absorb the solution L from the two solution tubes 34.

[0041] By forming the water absorbent 350 in a spiral shape and arranging it along the extension direction of the expansion / contraction duct 13 in this way, it comes into contact with a wider area in the extension direction of the expansion / contraction duct 13 compared to when the above-mentioned annular water absorbent 35 is used, so that the solution L can be efficiently distributed throughout the expansion / contraction duct 13 and a large amount of the solution L can be vaporized into the air flowing through the expansion / contraction duct 13. Furthermore, when the water absorbent 350 is formed in a spiral shape, it becomes possible to expand and contract, so that the range of permeation from the water absorbent 350 into the expansion / contraction duct 13 can be changed, and the amount of the active substance supplied to the living room 2 can be adjusted.

[0042] The shape of the water absorbent 350 extended along the extension direction of the expansion / contraction duct 13 is not limited to a spiral shape, and may be, for example, a cylindrical bellows having a repeated structure of mountain folds and valley folds. The bellows may be either an expandable bellows in which the peaks and valleys are independent in the axial direction (hereinafter referred to as an expandable bellows), or one in which the peaks and valleys extend in a spiral shape in the axial direction (hereinafter referred to as a spiral bellows), but by using an expandable bellows, the range in which the solution L permeates from the water absorbent into the expansion / contraction duct 13 can be changed.

[0043] The shape of the water absorbent body 350 may be a cylindrical body formed by a mesh. Even if formed in this way, the range in which the solution L permeates from the water absorbent body into the expansion / contraction duct 13 can be changed.

[0044] The shapes of the solution pipe 34 and the water absorbent 350 may be set according to the cross-sectional shape of the duct. When the cross-sectional shape of the duct is circular, the shape of the solution pipe 34 may be circular, and the shape of the water absorbent 350 may be a cylindrical spiral, or a cylindrical bellows that is stretchable or non-stretchable in the axial direction, and when the cross-sectional shape of the duct is rectangular, the shape of the solution pipe 34 may be rectangular, and the shape of the water absorbent 350 may be a rectangular tubular spiral, or a rectangular tubular bellows that is stretchable or non-stretchable in the axial direction.

[0045] In addition, it is preferable that the solution pipe 34 provided in the duct is formed so as not to impede the flow of air through the duct as much as possible, and it is sufficient to configure the solution pipe 34 so that a part of the water absorbent body 350 is wetted with the solution L stored in the solution pipe 34.

[0046] Furthermore, in the case where the water absorbent body 350 is a spiral bellows, for example, the spiral aggregate is hollowed out at the mountain-folded portion of the bellows, allowing the solution L to flow inside, and the solution L is configured to seep out from the aggregate into the water absorbent body 350, thereby making it possible to omit the function of storing the solution L in the solution pipe 34.

[0047] The duct in which the supply unit 31 is to be installed is not limited to the expansion / contraction duct 13 made of a porous material into which the solution L can permeate from the water absorbent 350 described above, and may be made of a metal, a resin, or the like into which the solution L does not permeate. In this case, the solution pipe provided in the duct may have a flange portion that connects the ducts together, or a hole may be drilled in the duct to supply the solution L.

[0048] In addition, although the annular water absorber 35 or the water absorber 350 is formed so as to contact the inner peripheral surface of the duct, the entire outer peripheral surface of the exposed annular water absorber 35 or the water absorber 350 does not need to contact the inner peripheral surface of the duct. For example, in the case of using the annular water absorber 35 as an example, the outer peripheral surface of the annular water absorber 35 or the water absorber 350 may be configured to have unevenness in the circumferential direction as shown in Fig. 8. By configuring the annular water absorber 35 or the water absorber 350 in this manner, a gap through which the air flowing in the duct can pass is formed between the outer peripheral surface of the annular water absorber 35 or the water absorber 350 and the inner peripheral surface of the duct, and the contact area between the air flowing in the duct and the annular water absorber 35 or the water absorber 350 is expanded, thereby improving the efficiency of vaporization of the solution L.

[0049] Moreover, the annular water absorber 35 and the water absorber 350 do not necessarily need to be formed to correspond to the cross-sectional shape of the duct, and may be provided so as to be exposed to the air flowing inside the duct, like the above-mentioned rod-shaped water absorber 36. In this case, the shape of the water absorber may be formed into a flat plate and disposed inside the duct so as to follow the flow.

[0050] Furthermore, by providing the absorbent with a plurality of through holes through which the air flowing through the duct can pass, the contact area between the air flowing through the duct and the annular absorbent 35 or the absorbent 350 is increased, thereby improving the efficiency of vaporization of the solution L. [Explanation of symbols]

[0051] 1 Air conditioning system, 2 Room, 3 Air conditioner, 4 Duct, 5 Bed, 6 Underfloor space, 7 Air outlet, 7A fan, 8 Wall, 9 Air inlet, 10 Duct, 11 Ceiling, 12 ventilation duct, 13 expansion / contraction duct, 14 girder, 15 concrete slab, 16 Support member, 17 Floor base substrate, 18 Floor finishing material, 19 Heat insulating material, 20 Air outlet, 30 active substance supply device, 31 supply unit, 32 solution tank, 34 solution pipe, 35 annular absorbent, 36 rod-shaped absorbent, 40 hollow portion, 41 connecting wall, 42 groove, 42 solution tank, 45 pipe, 46 valve, 47 control unit, 48;49 sensor, 350 absorbent, L solution.

Claims

1. An active substance supplying device that supplies an active substance that acts on people in a room to air sent from an air conditioner through a duct, a storage tank for storing a liquid active substance; a first water absorbing body made of a porous material provided in the duct and impregnated with the liquid active substance stored in the storage tank; Equipped with The duct is made of a porous material that can absorb the liquid active substance impregnated in the first absorbent body from the absorbent body, The active substance supplying device is characterized in that the first water absorbent is provided along the inner circumference of the duct and is in contact with the inner circumference of the duct.

2. The active substance supply device described in claim 1, characterized in that the first absorbent body has a convex portion that contacts the inner circumference of the duct and a concave portion that forms a gap between the first absorbent body and the inner circumference of the duct in a circumferential direction along the inner circumference of the duct.

3. 3. The active substance supplying device according to claim 1, wherein the first water absorbent body is adjustable in length in the extension direction of the duct.

4. 4. The active substance supplying device according to claim 3, wherein the first water absorbing body is bellows-shaped or spiral-shaped and expands and contracts in the extension direction of the duct.

5. 3. An active substance delivery device as claimed in claim 1 or 2, characterized in that it comprises a second water absorbing body transverse to the air flowing through the duct.

6. 6. The active substance supplying device according to claim 1, wherein the first water absorbing body has a through hole through which air flowing through the duct can pass.

7. An air conditioning system comprising an active substance supply device according to any one of claims 1 to 6.

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