WO2018220769A1 - Élément d'humidification, dispositif d'humidification, climatiseur et dispositif de ventilation - Google Patents

Élément d'humidification, dispositif d'humidification, climatiseur et dispositif de ventilation Download PDF

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Publication number
WO2018220769A1
WO2018220769A1 PCT/JP2017/020346 JP2017020346W WO2018220769A1 WO 2018220769 A1 WO2018220769 A1 WO 2018220769A1 JP 2017020346 W JP2017020346 W JP 2017020346W WO 2018220769 A1 WO2018220769 A1 WO 2018220769A1
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WIPO (PCT)
Prior art keywords
water
water storage
humidifying
conduit
water conduit
Prior art date
Application number
PCT/JP2017/020346
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English (en)
Japanese (ja)
Inventor
秀和 平井
勝 高田
Original Assignee
三菱電機株式会社
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Publication date
Application filed by 三菱電機株式会社 filed Critical 三菱電機株式会社
Priority to PCT/JP2017/020346 priority Critical patent/WO2018220769A1/fr
Priority to JP2019521620A priority patent/JP6742517B2/ja
Publication of WO2018220769A1 publication Critical patent/WO2018220769A1/fr

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F6/00—Air-humidification, e.g. cooling by humidification
    • F24F6/02—Air-humidification, e.g. cooling by humidification by evaporation of water in the air
    • F24F6/04—Air-humidification, e.g. cooling by humidification by evaporation of water in the air using stationary unheated wet elements

Definitions

  • the present invention relates to a humidifying element, a humidifier, an air conditioner, and a ventilator that generate humidified air.
  • Humidifiers that generate humidified air include humidification systems such as natural evaporation, electric heating, water spray, and ultrasonic.
  • the natural evaporation type tends to have a smaller humidifying capacity than other types.
  • the electric heating type tends to have a higher running cost than other methods.
  • the water spray type has a lower humidification efficiency than other methods and tends to be large in size.
  • the ultrasonic type tends to have a higher initial cost than other types.
  • the ultrasonic type has a short device life and tends to scatter dusts and calcium carbonate fine powder in water.
  • the natural evaporation type humidifier is useful for use in a place that is operated for a long time because it can easily reduce the running cost as compared with other methods. Moreover, improvement is also progressing about the humidification capability which is a problem mentioned above.
  • Drip-type humidifiers tend to be used in commercial humidifiers such as air conditioners.
  • Patent Document 1 discloses that water is supplied to a humidifier from a water tank having a plurality of holes on the bottom surface, and water overflowing from the water tank is directly passed through an overflow pipe. A configuration for draining is disclosed.
  • Patent Document 1 when the hole provided in the bottom surface of the water tank is blocked by impurities in the water, the water overflowing from the water tank is directly drained through the overflow pipe. For this reason, it is not possible to fully demonstrate the advantages of a drip-type humidifier that can withstand long-term use by supplying more water than the amount to be humidified to the humidifier and washing the surface. There was a problem.
  • the drip-type humidifying element when water flows intermittently in the humidifying body, the water absorbed by the humidifying body is reduced compared with the case where water of a constant flow rate is continuously flowing, and the humidifying performance may be reduced. there were.
  • the present invention has been made in view of the above, and prevents the deterioration of the humidifying body using the washing-off effect of the water supplied to the humidifying element and prevents a decrease in the humidifying performance. It aims at obtaining the humidification element which has this.
  • a humidifying element is provided above a plurality of humidifying bodies arranged so as to provide a gap between each other and the plurality of humidifying bodies.
  • a diffusion member that contacts the plurality of humidifiers, and a water storage tank that stores water and has a water storage section having a plurality of water injection holes formed on the bottom surface and provided above the humidifier.
  • a cylindrical water conduit extending vertically is provided inside the water storage tank at a position avoiding the water injection hole, and the lower end of the water conduit is an outlet that penetrates the bottom surface of the water reservoir.
  • the inlet pipe is provided at a position lower than the outer wall of the water reservoir.
  • a groove-shaped water conduit is formed from the water reservoir side to the inner side of the water conduit at a position adjacent to the lowermost end of the inflow port in the water conduit.
  • the humidifying element according to the present invention has an effect that the humidifying body is prevented from being deteriorated by utilizing the washing-off effect of water supplied to the humidifying element and the humidifying performance is prevented from being lowered, and the humidifying element has stable long-term humidifying performance. .
  • FIG. 7 is a cross-sectional view of the humidifying element shown in FIG. 6 taken along line VII-VII, and is an enlarged view of the water storage tank.
  • FIG. 1 The schematic diagram showing a mode that the water overflowing from the water storage tank flows into the communicating flow path shown in FIG.
  • FIG. 1 is a configuration diagram of a humidifying device 1 according to a first embodiment of the present invention.
  • a humidifying element 2 is incorporated in the humidifying device 1.
  • a blower 5 is incorporated on the upper side or lower side of the humidifying element 2 to send indoor air into the humidifying element 2 and blow it out into the room again.
  • FIG. 1 a state in which the blower 5 is incorporated on the ventilation side of the humidifying element 2 is shown.
  • the humidifier 1 is connected to a humidifier 2, a water supply source such as a water supply facility, and feeds water for humidification to the humidifier 2, and the water remaining without being humidified by the humidifier 2 to the outside.
  • a drain pipe 4 to be discharged and a blower 5 that allows the air flow to pass through the humidifying element 2 are provided.
  • the humidifying device 1 includes a control device 6 that performs operations of devices such as a blower 5 and a water supply valve 3a that is a water supply electromagnetic valve, and a drain pan 7 that receives drainage and drains it to the outside.
  • FIG. 2 is an enlarged view of the humidifying element 2 provided in the humidifying apparatus 1 according to the first embodiment.
  • One or more humidifying elements 2 are directly installed on the drain pan 7.
  • the ridge corners on both sides of the top structure of each humidifying element 2 are detachably held by a guide rail or the like mounted on the partition wall and the front inner wall surface of the main body box.
  • illustration is abbreviate
  • the humidifying element 2 is connected to a water supply system having a water supply valve 3 a for supplying and shutting off water for humidification, and a drain pipe 4 is connected to the drain pan 7.
  • the water supply system for supplying humidifying water to the humidifying element 2 includes a water supply valve 3a for adjusting the pressure and flow rate of water supplied to the humidifying element 2, a strainer for preventing dust from entering the water supply system, and water supply for water supply. It is configured as a water channel including the pipe 3. It is preferable that all the connection parts of the water supply system except the connection part with the water supply source side are concentrated in the drain pan 7.
  • FIG. 3 is a perspective view of the humidifying element 2 in the first embodiment.
  • FIG. 4 is an exploded perspective view of the humidifying element 2 in the first embodiment.
  • FIG. 5 is a front view of the humidifying element 2 in the first embodiment.
  • FIG. 6 is a cross-sectional view taken along line VI-VI of the humidifying element 2 shown in FIG.
  • the humidifying element 2 includes a large number of plate-like humidifiers 20 arranged along a first direction which is a direction indicated by an arrow X in FIGS. 4 and 5 so as to provide a gap between them.
  • a diffusion member 30 is in contact with the upper portion of the humidifying body 20.
  • the diffusing member 30 is arranged so as to extend along the first direction, and the plurality of humidifiers 20 come into contact with the one diffusing member 30 collectively.
  • the humidifying body 20 there are a water storage tank 12 for storing water to be supplied to the humidifying body 20 and a water supply port 11 for injecting water from the water supply pipe 3 into the water storage tank 12. Further, below the humidifying body 20, there are a drainage section 13 and a drain outlet 13a for receiving and draining water remaining from the humidifying body 20 without being humidified.
  • the humidifier 20 is housed and fixed inside the casing 10. Details of the water storage tank 12 will be described later.
  • the water supply port 11 and the drainage part 13 are formed in the casing 10.
  • the casing 10 is formed with a structural wall 14 that connects a water storage tank 12 as an upper structure and a drainage section 13 as a lower structure.
  • the casing 10 is formed by a molding method such as injection molding using a thermoplastic plastic containing ABS (Acrylonitrile Butadiene Styrene) resin, polystyrene (PS) resin, or polypropylene (polypropylene: PP) resin as a material.
  • the casing 10 is divided into two parts, a casing 10a and a casing 10b.
  • the humidifier 20 is sandwiched between the casing 10a and the casing 10b, and the engaging portion 15 of the casing 10a and the casing 10b is combined so that the casing 10a and the casing 10b are integrated.
  • the casing 10 a and the casing 10 b are provided with a portion serving as a drain port 13 a and an opening 10 c for introducing humidified air into the humidifying body 20. Further, the casing 10 b is provided with a water supply port 11 for supplying water to the water storage tank 12. A storage space for storing the humidifying body 20 is provided inside the casing 10.
  • a portion of the casing 10 that comes into contact with the humidifying body 20 is provided with a positioning projection 10d for regulating the position of the humidifying body 20. Since the humidifying body 20 softens when it contains water and deforms due to the weight of the water, the flow between the humidifying bodies 20 is restricted by regulating the position of the humidifying body 20 at the outer peripheral portion of the humidifying body 20 in contact with the casing 10. The dimension of the path can be secured and air can flow uniformly.
  • the water supply port 11 is provided at a position above the humidifying element 2 and above the humidifying body 20 in order to supply water to the water storage tank 12.
  • the shape of the water supply port 11 may be a shape that matches the water supply pipe 3, and may be formed with a convex band, so-called barbed structure, or tied with a hose band so as not to easily come off.
  • the position of the water supply port 11 is not limited as long as it is a structure that can supply water from the upper part of the humidifying body 20, but considering the case where water leaks from the joint between the water supply pipe 3 and the water supply port 11, It is preferable to arrange on the windward side.
  • the water leaked from the joint between the water supply pipe 3 and the water supply port 11 rides on the airflow, is guided to the leeward side, that is, the humidifying element 2 side, and is absorbed by the humidifying element 20.
  • the scattering of water to the leeward side of 2 can be reduced.
  • the water supply port 11 is provided with a mechanism for reducing the amount of water. It is preferable to adjust the amount of water supplied to the water storage tank 12.
  • a mechanism for reducing the amount of water is, for example, the orifice section 40 shown in FIG.
  • the water tank 12 is provided above the diffusion member 30.
  • a plurality of water injection holes 12 a for dropping water to the diffusion member 30 are formed on the bottom surface of the water storage tank 12.
  • the water storage tank 12 and the diffusion member 30 are combined as an integral part, and the integral part is sandwiched and held between the casing 10a and the casing 10b.
  • a water level detection sensor 8 that detects the water level of the water storage tank 12 may be installed in the water storage tank 12. The detected water level may be fed back to control the opening / closing of the water supply valve 3a by the control device 6 shown in FIG.
  • the water storage tank 12 is formed by a molding method such as injection molding using a thermoplastic plastic containing ABS resin, PS resin or PP resin as a material. Since the water storage tank 12 uses a resin material, if the surface is smooth, the contact angle in water is large, approximately 90 degrees or more, and the surface is hydrophobic. Therefore, the water storage tank 12 is excellent in hygiene because water hardly remains on the inner surface.
  • the contact angle is 90 ° or more for hydrophobicity
  • the contact angle is 40 ° to less than 90 ° for hydrophilicity
  • the contact angle is less than 40 ° for superhydrophilicity.
  • the diffusion member 30 is formed of a porous plate material.
  • the surface of the material is more hydrophilic as much as possible, and the permeability becomes better and the flow rate through which the water can flow increases.
  • the diffusing member 30 is always in contact with water, the diffusing member 30 is preferably formed of a material that is not easily deteriorated by water.
  • the diffusion member 30 formed of a material that is not easily deteriorated by water includes a porous plate made of polyester or cellulose such as polyethylene terephthalate (PET) resin, or metal such as titanium, copper, One example is a porous plate made of stainless steel. Further, in order to increase the hydrophilicity of the material surface, the diffusing member 30 may be subjected to a hydrophilic treatment.
  • the humidifier 20 is formed of a porous plate material like the diffusion member 30. Suitable conditions for the material of the humidifying body 20 are the same as those of the diffusion member 30, and the same material as the diffusion member 30 may be used as the material of the humidifying body 20. However, if a material having better water absorption than the diffusing member 30 is used for the humidifying body 20, the humidifying body 20 absorbs water before the water is sufficiently diffused into the diffusing member 30. The uniformity of supply may decrease. In this case, measures can be taken by increasing the vertical dimension of the diffusing member 30.
  • a convex part 21 is provided on the surface of the humidifier 20.
  • the convex portion 21 can maintain the interval between the humidifying bodies 20.
  • the convex portion 21 can be formed by pressing a jig against the humidifying body 20 and plastically deforming a portion where the jig is pressed.
  • the humidification body 20 should just keep the space
  • a structure in which the interval is maintained may be employed, or a structure in which the interval is maintained by stacking the humidified bodies 20 formed in a wave shape in a honeycomb shape may be employed.
  • the lower end of the diffusing member 30 and the upper end of the humidifying body 20 are installed in contact with each other. If the diffusing member 30 and the humidifying body 20 are in contact with each other, water flows down to the humidifying body 20 without stagnation due to the action of the capillary force of the humidifying body 20. Taking into account the dispersion during assembly of the diffusion member 30 and the humidifying body 20 and the influence of vibration during transportation, the diffusion member 30 and the humidifying body 20 are inserted such that the lower end of the diffusion member 30 and the upper end of the humidifying body 20 are inserted into each other. And may be linked.
  • the diffusion member 30 uniformly distributes water dripping from the water storage tank 12 positioned above in the first direction, that is, uniformly to the plurality of humidifiers 20 arranged side by side in the first direction. Is provided to supply. Therefore, when the plurality of humidifiers 20 are integrated and water can be diffused in the first direction between the plurality of humidifiers 20, the humidifier 20 itself has the same water diffusion function as the diffusion member 30. Will have. In this case, a configuration in which water is dropped directly from the water storage tank 12 to the humidifier 20 without using the diffusion member 30 may be used.
  • FIG. 7 is a cross-sectional view taken along the line VII-VII of the humidifying element 2 shown in FIG. 6 and is an enlarged view of the water storage tank 12.
  • a plurality of water injection holes 12 a are formed on the bottom surface of the water storage tank 12.
  • the plurality of water injection holes 12a are in the same plane, and are formed so that all the water injection holes 12a are arranged horizontally when the humidifying device 1 and the humidifying element 2 are installed horizontally.
  • a cylindrical wall surface 12 b extending downward from the water injection hole 12 a is formed on the bottom surface 12 d of the water storage tank 12.
  • the tip end of the cylindrical wall surface 12 b contacts the diffusing member 30.
  • a space corresponding to the height of the cylindrical wall surface 12b is provided between the upper surface of the diffusion member 30 and the bottom surface 12d of the water storage tank 12.
  • FIG. 8 is an enlarged view of the water injection hole 12a portion of the water storage tank 12 according to Embodiment 1, and is a view of the water storage tank 12 viewed from below.
  • FIG. 9 is a cross-sectional view showing an example of the peripheral portion of the water storage tank 12 in the first embodiment. A part of the tip portion of the cylindrical wall surface 12b is notched, and a notch 12c is formed.
  • FIG. 10 is a top view of water tank 12 in the first embodiment.
  • FIG. 11 is an enlarged perspective view of the vicinity of the communication channel 120 located on the right side of the water storage tank 12 shown in FIG. 10 according to the first embodiment. As shown in FIGS. 10 and 11, a water conduit 123 is provided in a part of the inflow port 121.
  • the shape shown with a broken line in FIG. 11 represents the shape of the inflow port 121 when the water conduit 123 is not provided.
  • a cylindrical water conduit 111 extending in the vertical direction, that is, extending from the water tank 12 toward the diffusion member 30, is provided inside the water tank 12 at a position avoiding the water injection hole 12 a.
  • the communication channel 120 is formed. That is, the inside of the water conduit 111 is a communication channel 120.
  • the communication channel 120 is a channel for guiding the water 50 overflowing from the water storage unit 110 to the humidifier 20 through the diffusion member 30. Accordingly, the water storage tank 12 guides the water overflowing from the water storage section 110 to the water storage section 110 that stores the water 50 to be supplied to the diffusion member 30 through the water injection hole 12a and the cylindrical wall surface 12b. And a communication channel 120 that communicates with the water storage unit 110.
  • the shape of the water conduit 111 is a rectangular tube shape.
  • the water reservoir 110 and the communication channel 120 are partitioned by a partition wall 12f.
  • the partition wall 12f is provided in a U shape so as to be connected to the inner surface of the outer wall 12e of the water storage tank 12 in a rectangular region surrounded by the outer wall 12e of the water storage tank 12 in a top view. That is, the water storage part 110 is a region surrounded by the outer wall 12e and the partition wall 12f of the water storage tank 12, and has a quadrangular shape in a top view. Therefore, the water conduit 111 is constituted by the outer wall 12e constituting the short side of the rectangular shape of the water storage tank 12, and the partition wall 12f. Further, the upper surface of the partition wall 12f is formed to be horizontal when the humidifying device 1 and the humidifying element 2 are installed horizontally.
  • the communication channel 120 is formed with an inlet 121 that is an inlet through which water flows into the communication channel 120 from the water reservoir 110 and an outlet 122 that is an outlet of the communication channel 120.
  • the lower end of the water conduit 111 is an outlet 122 that penetrates the bottom surface of the water storage tank 12.
  • the inflow port 121 is formed at a position lower than the upper end of the water storage unit 110, that is, the upper end of the outer wall 12e, so that water overflowing from the water storage unit 110 of the water storage tank 12 is introduced into the communication channel 120. That is, in the first embodiment, the upper end of the water conduit 111 is at a position lower than the upper end of the outer wall of the water storage unit 110, and the opening on the upper end side becomes the inflow port 121. When the upper end of the water conduit 111 is higher than the upper end of the outer wall of the water storage unit 110, an opening may be provided at a position lower than the outer wall of the water storage unit 110 to serve as an inflow port.
  • the water in the water storage part 110 flows through the communication channel 120 for the first time when the water reaches the lowermost part of the inlet 121.
  • the arrows in FIG. 7 indicate the direction in which water flows from the water storage unit 110 into the communication channel 120.
  • the inlet 121 and the upper surface 123a of the partition wall are positioned higher than the upper end of the water injection hole 12a and the water storage tank 12 is horizontally installed so that water does not flow into the communication channel 120 until the water overflows from the water storage unit 110.
  • the water level is provided above the water level where the dropping flow rate of the water injection hole 12a and the supply flow rate to the water storage unit 110 are balanced and balanced.
  • the water level in which the dropping flow rate and the supply flow rate are balanced and balanced will be described later.
  • the water conduit 123 is provided at a corner of the upper surface of the water conduit 111 on the water storage section 110 side.
  • the water conduit 123 is composed of a surface formed by connecting the points b, d, e, and f and a surface formed by connecting the points c, d, e, and g. It is a V-shaped groove. That is, the point b, the point d, and the point e are located on the same plane. Point c, point d, and point e are located on the same plane. The distance between the point a and the point b and the distance between the point a and the point c are equal.
  • the point d which is the bottom on the inner side of the water tank 12, that is, the bottom on the water storage unit 110 side, is below the point a in the height direction of the outer wall 12e and the partition wall 12f. To position. That is, when the humidifying device 1 and the humidifying element 2 are installed horizontally, in the V-shaped groove of the water conduit 123, the point d corresponds to the point a when the humidifying device 1 and the humidifying element 2 are installed horizontally. Located vertically below.
  • the point e which is the bottom on the communication channel 120 side, is at a position lower than the point d in the height direction of the outer wall 12e and the partition wall 12f. That is, when the humidifying device 1 and the humidifying element 2 are installed horizontally, the point e is at a position lower than the point d in the V-shaped groove of the water conduit 123.
  • the groove-shaped water conduit 123 is formed in the water conduit 111 in the position adjacent to the lowest end part of the inflow port 121 from the water storage part 110 side to the inner side of the water conduit 111. .
  • channel of the water conduit 123 inclines below as it goes to the point e from the point d. That is, the V-shaped groove of the water conduit 123 is inclined downward from the water storage section 110 side toward the communication flow path 120 side.
  • the inclination angle of the V-shaped groove of the water conduit 123 from the point d to the point e is preferably inclined by 45 degrees or more with respect to the horizontal plane.
  • the flow rate of the water overflowing from the water storage section 110 can be kept constant in time and guided to the communication channel 120. Details of the effect of the water conduit 123 will be described later.
  • the distance between point a and point b is referred to as a conduit width H
  • the distance between point a and point d is referred to as a conduit depth D.
  • the inflow port 121 has two convex corners projecting toward the space where water is stored in the water storage tank 12, that is, the water storage part 110 side, with respect to the horizontal direction.
  • a water channel 123 is provided. That is, the partition wall 12f has two convex corners, and the two corners are point a and point h in FIG.
  • the water conduit depth D of the water conduit 123 is sufficiently deep, water flows through the water conduit 123 to the communication channel 120 regardless of the position where the water conduit 123 is provided, so the water conduit 123 is necessarily provided at the corner. There is no need. However, by providing the water conduit 123 at the corner of the inflow port 121, the water conduit depth D can be reduced, and the upper limit of the water level stored in the water reservoir 110 can be increased.
  • the water guide width H is the height of the water surface of the convex meniscus of water that rises upward from the edge of the partition wall 12f due to surface tension in a state where water is stored in the water storage unit 110 until the water overflows from the water storage unit 110. It is preferable that the relationship of the following formula (1) holds for M.
  • the water conduit width H becomes larger than the curvature radius of the convex meniscus of water that rises upward due to surface tension, and the central portion of the water conduit 123 is It can serve as a groove that can overflow with water.
  • the height M of the water meniscus overflowing from the water storage section 110 will be described later.
  • the humidifying device 1 or the humidifying element 2 is installed at an inclination.
  • the humidifier when the humidifier 1 is installed using a metal fitting on an anchor bolt embedded in the ceiling, the humidifier may be installed slightly inclined from the horizontal. Further, when the humidifying element 2 is removed by inspection or the like, the humidifying element 2 may be attached with a slight inclination when it is installed again. Therefore, even when the humidifier 1 or the humidifying element 2 is installed at an inclination, the water overflowing from the water storage section 110 of the water storage tank 12 is allowed to pass through the water conduit 123 and the flow rate is kept constant over time. Is preferred.
  • the communication flow path 120 in multiple places. And it is preferable to provide one or more water conduits 123 for one communication channel 120. Even if the humidifying device 1 or the humidifying element 2 is installed at an inclination by providing one or more water conduits 123 for one communication channel 120, the water storage unit 110 of the water storage tank 12 overflows. It is possible to prevent water from passing through a route other than the water conduit 123. Thus, the water storage tank 12 is inclined by providing the water conduit 123 and the communication channel 120 as a pair or by providing two or more water conduits 123 with respect to one communication channel 120.
  • the water overflowing from the water storage unit 110 can flow to the communication channel 120 through the water conduit 123 of the communication channel 120 located at the lowest position. Further, by providing a plurality of water conduits 123 for one communication channel 120, communication from the water storage unit 110 through the water conduit 123 located at the lowest position in the one communication channel 120. Water can flow into the flow path 120.
  • a constant flow rate of water controlled by the water supply valve 3a is supplied to the water supply port 11.
  • the water flowing in from the water supply port 11 flows into the water storage tank 12 with a constant flow rate.
  • the water 50 that has flowed into the water storage unit 110 drops from the plurality of water injection holes 12 a on the bottom surface of the water storage unit 110 and is absorbed by the diffusion member 30 through the cylindrical wall surface 12 b having the notches 12 c. .
  • the water absorbed by the diffusion member 30 flows down while spreading inside the diffusion member 30 and reaches the lower end of the diffusion member 30.
  • the lower end of the diffusion member 30 and the upper end of the humidifier 20 are in contact with each other. For this reason, the water flowing down into the diffusing member 30 is transmitted to the humidifying body 20 from the contact portion between the lower end of the diffusing member 30 and the upper end of the humidifying body 20 by the action of the capillary force of the humidifying body 20.
  • the water flowing down to the humidifying body 20 penetrates the entire humidifying body 20 while spreading inside the humidifying body 20 and drops from the lower end of the humidifying body 20. At this time, moisture is taken away from the surface of the humidifying body 20 by the air ventilated between the humidifying bodies 20 and is exhausted from the humidifying element 2 as humidified air.
  • the flow rate of the water dropped and drained from the lower end of the humidifying body 20 is a water amount obtained by subtracting the amount of water taken from the humidifying body 20 as humidified air from the amount of water supplied from the water supply port 11.
  • the water injection hole 12a has a flow resistance when water is passed through.
  • the water head pressure Pi is a head difference from the inlet of the water injection hole 12a to the height of the water level.
  • Ci is a coefficient depending on the shape or the like of the water injection hole 12a
  • Ai is a cross-sectional area of the water injection hole
  • ⁇ is the density of water
  • i is a subscript representing a number when there are a plurality of water injection holes.
  • the water head pressure Pi applied to the inlet of the water injection hole 12a increases as the water level stored in the water storage section 110 of the water storage tank 12 increases.
  • the flow rate Qi flowing through the water injection hole 12a increases in proportion.
  • the coefficient C depending on the shape of the water injection hole 12a, the cross-sectional area A of the water injection hole, and the water injection so that all of the water supply flow rate Qin supplied from the water supply port 11 to the water storage unit 110 of the water storage tank 12 can be dripped from the water injection hole 12a.
  • the water head pressure Pi applied to the inlet of the hole 12a and the number of the water injection holes 12a the water supplied to the water storage part 110 of the water storage tank 12 does not overflow from the water storage part 110, and the diffusion member 30 is discharged from the water injection hole 12a. Can be dripped.
  • the water level at which the dropping flow rate of the water injection hole 12a and the supply flow rate to the water storage unit 110 are balanced can be made smaller than the water level at which the water storage unit 110 of the water storage tank 12 can store the maximum amount.
  • the flow rate of water dripping from the water injection hole 12a that is, the flow rate Qi of water passing through the water injection hole 12a is uniform in all the water injection holes 12a, and the supply water flowing through the diffusing member 30 and the humidifier 20 is directed in the first direction. On the other hand, it can flow uniformly.
  • stop of the humidification operation when humidification becomes unnecessary such as at night will be explained.
  • the humidifying operation of the humidifying device 1 may be stopped.
  • bacteria or mold in the air adheres to the humid part of the humidifying element 2 and grows, the bacteria or mold spores are conveyed by the ventilation passing through the surface of the humidifying element 2 when the humidification operation is restarted, and the bacteria or mold There is concern that spores may be released into the room.
  • As a method for suppressing the growth of such bacteria or molds it is effective to dry the humidifying element 2 as soon as possible.
  • the controller 6 controls the air dryer 5 to operate and then the humidifier 2 to be dried after the water supply valve 3 a is closed.
  • the controller 6 controls the air dryer 5 to operate and then the humidifier 2 to be dried after the water supply valve 3 a is closed.
  • the controller 6 controls the air dryer 5 to operate and then the humidifier 2 to be dried after the water supply valve 3 a is closed.
  • the controller 6 controls the air dryer 5 to operate and then the humidifier 2 to be dried after the water supply valve 3 a is closed.
  • the bottom surface inside the water storage section 110 of the water storage tank 12 shown in FIG. 9 is inclined so as to be at the lowest position in the water injection hole 12a. For this reason, after the water supply valve 3a is closed, the water in the water storage part 110 of the water storage tank 12 continues dripping by the water head pressure Pi applied to the inlet of the water injection hole 12a. Further, when the water head pressure Pi applied to the inlet of the water injection hole 12a is almost zero, the water in the water storage section 110 is smoothly absorbed by the diffusion member 30 by the capillary force of the diffusion member 30 brought into contact with the water injection hole 12a. Is done. Therefore, the water in the water storage section 110 of the water storage tank 12 flows out through the diffusion member 30 and can be quickly dried in the water storage tank 12.
  • the water storage in the case where the humidifying element 2 is not used for a long period of time by arranging the water injection hole 12a at the lowest position in the bottom surface inside the water storage unit 110 using a container having an open top in the water storage tank 12.
  • the hygiene inside the tank 12 can be ensured.
  • parts such as a seal member for sealing the water storage tank 12 are unnecessary, the structure can be simplified, and the long-term reliability is low.
  • High humidification element 2 can be provided.
  • the secular change of the water tank 12 will be described.
  • hardness components and evaporation residues such as silica, iron rust, and dust contained in the feed water in the feed water accumulate in the water injection hole 12a over time
  • the water injection hole cross-sectional area Ai in the above formula (2) becomes small. If the water supply flow rate to the water storage tank 12 is constant, the water head pressure Pi applied to the inlet of the water injection hole 12a increases. That is, the water level in the water storage part 110 of the water tank 12 rises. In this case, since all the water stored up to the upper end of the partition wall 12f can be dripped from the water injection hole 12a, it is preferable that the water storage part 110 is a container as deep as possible.
  • the water tank 12 is preferably a container that is as deep as possible.
  • an upper limit value exists in the allowable amount of rise in the water level, that is, the depth of the water storage unit 110 and the water storage tank 12 due to the restrictions on the dimensions of the water storage tank 12 and the casing 10.
  • the water level in the water storage section 110 of the water storage tank 12 rises as described above. Since the inflow port 121 is located at a position lower than the partition wall 12f of the water storage tank 12, when the water level in the water storage unit 110 rises and water is likely to overflow from the water storage unit 110, the water in the water storage unit 110 flows into the inflow port. It flows into 121. The water that flows into the inflow port 121 flows through the communication channel 120, flows down from the outflow port 122 to the diffusion member 30, and is supplied to the humidifier 20. That is, the communication channel 120 functions as an auxiliary channel when the water injection hole 12a becomes difficult to pass water.
  • FIG. 12 is a schematic diagram illustrating a state in which water overflowing from the water storage section 110 flows into the communication flow path 120 illustrated in FIG. 11 in the first embodiment.
  • FIG. 7 shows a behavior in which water overflowing from the water storage unit 110 reaches the inside of the communication channel 120 when the water conduit 123 is not provided.
  • the water level line 131 extends to the same surface as the inlet 121 in the water storage section 110 of the water tank 12, that is, the same surface as the upper surface 12g of the partition wall 12f.
  • the difference between the water level line 131 and the water level line 132 in the height direction of the partition wall 12f and the outer wall 12e, that is, in the vertical direction when the humidifying device 1 and the humidifying element 2 are installed horizontally is the difference between the convex meniscus described above.
  • the height M of the water surface of the convex meniscus is low if the inner surface of the water storage section 110 is hydrophilic, and is high if the inner surface of the water storage section 110 is hydrophobic. Since the water storage tank 12 uses a resin material and the surface is hydrophobic, the height M of the water surface of the convex meniscus is relatively high.
  • the water conduit 123 is not provided, and a constant flow of water is supplied to the water storage unit 110 with all the water injection holes 12a closed. think of.
  • the water supplied to the water storage unit 110 does not flow to the communication channel 120 immediately after being stored up to the height position of the water level line 131.
  • the water supplied to the water storage unit 110 is stored until the water level reaches the height of the water level line 132 and then flows into the communication channel 120 at a stretch.
  • the water level decreases to the height of the water level line 131, and then the water level line.
  • the behavior of gradually storing up to position 132 is repeated.
  • the water flowing in the communication channel 120 has a constant flow direction but a flow that changes in quantity periodically or with irregular fluctuations, that is, intermittent. It is a pulsating flow, and the flow rate flowing through the humidifying body 20 varies with time.
  • the inner surface of the water storage unit 110 is hydrophobic, the amount of water stored in the water storage unit 110 between the height level between the water level line 131 and the water level line 132 is such that the inner surface of the water storage unit 110 is hydrophilic. Compared to the case, a large amount of water flows into the humidifying body 20 at a time. In addition, this phenomenon is not only when the inner surface of the water storage part 110 of the water storage tank 12 is hydrophobic, but as long as the inner surface of the water storage part 110 is not superhydrophilic, even if it is hydrophilic, a large amount at a time. There is no change in that water flows into the humidifying body 20.
  • water droplets that could not be absorbed by the humidifying body 20 are scattered on the wind blown to the humidifying element 2, and water leakage occurs outside the humidifying device 1.
  • the humidifier 1 includes the groove-shaped water conduit 123 described above at the inlet of the communication channel 120, so that the width of the channel through which water flows from the water storage unit 110 to the communication channel 120. And a large amount of water can be prevented from flowing into the communication channel 120 at a time.
  • the groove-shaped water conduit 123 is inclined downward from the water storage section 110 side toward the communication flow path 120 side, the water exceeding the water conduit 123 immediately falls due to the action of gravity, thereby causing intermittent flow. Can be prevented.
  • the humidifying device 1 when the humidifying device 1 and the humidifying element 2 are installed horizontally, that is, in the vertical plane direction perpendicular to the height direction of the outer wall 12e and the partition wall 12f.
  • the communication channel 120 is partitioned from the water storage section 110 by a partition wall 12f projecting from the outer wall 12e to the water storage section 110 side.
  • the water conduit 123 is provided in the corner
  • the humidifier 1 includes the groove-shaped water guide passage 123 described above at the inlet of the communication passage 120, so that the water injection hole 12a is cut off due to evaporation residue or impurities in water. Even when the area is reduced or closed, the water overflowing from the water storage section 110 of the water storage tank 12 can be continuously passed through the communication channel 120. Therefore, it is possible to reduce the possibility of water degradation and deterioration of the humidification performance due to intermittent supply of water overflowing from the water storage unit 110 to the humidifier 20.
  • the humidifying device 1 according to the first embodiment can prevent the humidifying body 20 from being deteriorated by using a washing effect by water supplied to the humidifying element 2.
  • the humidifying device 1 according to the first embodiment is a dripping type humidifying device, and supplies a larger amount of water than the amount to be humidified to the humidifying body 20 to wash away the surface of the humidifying body 20 for a long time. It has the advantage of being able to withstand use, and it is possible to prevent the humidifying element 20 from being deteriorated by utilizing the effect of washing out the water supplied to the humidifying element 2.
  • FIG. 13 shows a case where the humidifier of sample A having the structure of the humidifier 1 in Embodiment 1 is compared with the humidifier of sample B having the same configuration as sample A except that the water conduit 123 is not provided. It is a figure which shows an example of the experimental result which shows the relationship between the flow volume (g / min) in the communication flow path 120, and elapsed time (sec).
  • FIG. 13 shows a result of comparing the flow rate of water flowing through the communication channel 120 in Sample A and Sample B when water having a constant flow rate of 5 g / min is supplied to the water storage unit 110.
  • the humidifier 1 uses the washing effect of the water supplied to the humidifying element 2 to prevent the humidifier 20 from deteriorating, and the flow rate of the water flowing in the humidifier 20 Can be realized at a low cost for a long period of time while keeping the humidity constant over time and preventing the water generated from the humidifier 20 from being scattered.
  • FIG. FIG. 14 is a perspective view around the inlet 121 of the humidifying element according to Embodiment 2 of the present invention.
  • the humidifying element according to the second embodiment has the same configuration as the humidifying element 2 according to the first embodiment except that the shape of the communication channel 120 is different.
  • the water conduit 111 has a cylindrical shape, and the water conduit is provided in at least one place on the upper surface of the water conduit 111. That is, in the humidifying element according to the second embodiment, the inflow port 121 is circular and the communication channel 120 is a cylindrical channel. Thereby, the water which is going to overflow into the communication flow path 120 from the water storage part 110 via the inflow port 121 swells uniformly on the upper surface of the cylinder. Therefore, by providing only one water conduit 123 at the inflow port 121, water can be reliably passed through the water conduit 123 from the water reservoir 110 to the communication channel 120. Further, the water conduit 123 may be provided at a plurality of locations on the upper surface of the partition wall 2 f, that is, the upper surface of the water conduit 111.
  • the humidifying element according to the second embodiment configured as described above has the same effect as the humidifying element 2 according to the first embodiment described above.
  • FIG. FIG. 15 is a perspective view around the inlet 121 of the humidifying element according to Embodiment 3 of the present invention. Since the humidifying element according to the third embodiment has the same configuration as the humidifying element 2 according to the first embodiment except that the shape of the water conduit 123 is different, the description of the part having the same configuration is omitted.
  • the water conduit 123 is formed of a U-shaped groove.
  • the bottom of the groove has a shape obtained by rounding the bottom of the V-shaped groove constituting the water conduit 123 in the first embodiment. Also in this case, the same effect as the case where the water conduit 123 is configured by a V-shaped groove can be obtained.
  • the humidifying element according to the second embodiment configured as described above has the same effect as the humidifying element 2 according to the first embodiment described above.
  • the water conduit 123 provided in the inflow port 121 can narrow the cross section of the flow path, and the water flows along the communication flow path 120 by being inclined from the water storage section 110 side to the communication flow path 120 side. Any shape may be used as long as it flows continuously without interruption. Therefore, the shape of the bottom of the water conduit 123 is not particularly limited. That is, the shape of the groove constituting the water conduit 123 is not limited to a V-shaped groove or a U-shaped groove.
  • FIG. FIG. 16 is an enlarged perspective view of the vicinity of the inlet 121 of the humidifying element according to Embodiment 4 of the present invention. Since the humidifying element according to the fourth embodiment has the same configuration as the humidifying element 2 according to the first embodiment except that the position of the inlet 121 is different, the description of the part having the same configuration is omitted.
  • the inflow port 121 shown in FIG. 16 is provided as an opening on the side surface of the partition wall 12f.
  • a region on the back side of the inflow port 121 that can be seen inside the circular inflow port 121 is the water reservoir 110, and a region on the back side of the inflow port 121 that appears on the outside of the circular inflow port 121 communicates. This is the flow path 120.
  • a water conduit 123 is provided at the bottom of the inflow port 121. That is, a groove-shaped water conduit 123 is formed from the water reservoir 110 side to the inner side of the water conduit 111 at a position adjacent to the lowermost end portion of the inlet 121 in the water conduit 111.
  • FIG. 17 is an enlarged perspective view of the vicinity of the inlet 121 of the humidifying element according to the fifth embodiment of the present invention.
  • the humidifying element according to the fifth embodiment has the same configuration as the humidifying element 2 according to the first embodiment except that an additional guide member 141 is added to the inflow port 121. Description of is omitted.
  • the partition wall 12f is thinned as shown in FIG. 17 in order to reduce the material.
  • the length of the water conduit 123 is shortened.
  • the length of the water conduit 123 is the length of the water conduit 123 in the thickness direction of the partition wall 12f, and the length in the extending direction of the V-shaped groove.
  • a guide member 141 is additionally provided to supplement the function of the water conduit 123.
  • the guide member 141 is provided so as to extend from the end of the water conduit 123 on the communication flow channel 120 side toward the communication flow channel 120, that is, from the water conduit 123 toward the inside of the water conduit 111.
  • the downward inclination of the upper surface of the guide member 141 is larger than the inclination of the water conduit 123. Note that the downward inclination of the upper surface of the guide member 141 may be the same as the inclination of the water conduit 123 as long as the water flowing from the water reservoir 110 to the water conduit 123 can be guided to the communication channel 120. It may be smaller than the inclination of 123.
  • the humidifying element according to the fifth embodiment configured as described above has the same effect as the humidifying element 2 according to the first embodiment described above.
  • the water storage tank 12 is configured as described above, thereby reducing the cost due to the thinning of the material of the water storage tank 12, the risk of deterioration of the humidifying performance of the humidifying element 2, and water It is possible to achieve both reduction of the risk of scattering.
  • the humidifier 1 described in the first to fifth embodiments in an air conditioner or a ventilator, the risk of water scattering from the humidifying element 2 in the air conditioner or ventilator is reduced. Thereby, the process air volume of an air conditioner or a ventilator can be increased, and the air conditioner or ventilator with a high reliability and a large process air volume can be provided.
  • the configuration described in the above embodiment shows an example of the contents of the present invention, and can be combined with another known technique, and can be combined with other configurations without departing from the gist of the present invention. It is also possible to omit or change the part.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Air Humidification (AREA)

Abstract

Élément d'humidification comprenant : une pluralité de corps d'humidification agencés en une rangée de telle sorte que des espaces sont prévus entre ceux-ci ; un élément de diffusion disposé au-dessus de la pluralité de corps d'humidification et venant en contact avec la pluralité de corps d'humidification ; et un réservoir de stockage d'eau pour stocker de l'eau, le réservoir de stockage d'eau étant disposé au-dessus des corps d'humidification et ayant une partie de stockage d'eau (110) dans laquelle une pluralité de trous d'injection d'eau sont formés sur la surface inférieure de celle-ci. Un tuyau d'eau cylindrique (111) s'étendant verticalement est disposé sur le côté intérieur du réservoir de stockage d'eau dans une position qui n'obstrue pas les trous d'injection d'eau, et l'extrémité inférieure du tuyau d'eau (111) sert de sortie traversant la surface inférieure de la partie de stockage d'eau (110). Une entrée (121) est disposée sur le tuyau d'eau cylindrique (111) dans une position plus basse que la paroi extérieure de la partie de stockage d'eau (110). Un conduit en forme de rainure (123) est formé dans une position adjacente à l'extrémité la plus basse de l'entrée (121) du tuyau d'eau (111), depuis le côté partie de stockage d'eau (110) vers le côté de l'intérieur du tuyau d'eau (111).
PCT/JP2017/020346 2017-05-31 2017-05-31 Élément d'humidification, dispositif d'humidification, climatiseur et dispositif de ventilation WO2018220769A1 (fr)

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PCT/JP2017/020346 WO2018220769A1 (fr) 2017-05-31 2017-05-31 Élément d'humidification, dispositif d'humidification, climatiseur et dispositif de ventilation
JP2019521620A JP6742517B2 (ja) 2017-05-31 2017-05-31 加湿素子、加湿装置、空気調和機および換気装置

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7469973B2 (ja) 2020-07-09 2024-04-17 シャープ株式会社 加湿フィルタ用ホルダ、加湿フィルタユニットおよび加湿装置

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4817116Y1 (fr) * 1970-09-21 1973-05-16
JPS555760A (en) * 1978-06-30 1980-01-16 Nomura Sangyo Kk Generating unit for fume by ultrasonic wave
JPS58129425U (ja) * 1982-02-24 1983-09-01 三菱重工業株式会社 空気調和機の加湿装置
JP2016023889A (ja) * 2014-07-23 2016-02-08 三菱電機株式会社 熱交換換気装置
JP2016176635A (ja) * 2015-03-19 2016-10-06 三菱電機株式会社 加湿素子および加湿装置

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4817116Y1 (fr) * 1970-09-21 1973-05-16
JPS555760A (en) * 1978-06-30 1980-01-16 Nomura Sangyo Kk Generating unit for fume by ultrasonic wave
JPS58129425U (ja) * 1982-02-24 1983-09-01 三菱重工業株式会社 空気調和機の加湿装置
JP2016023889A (ja) * 2014-07-23 2016-02-08 三菱電機株式会社 熱交換換気装置
JP2016176635A (ja) * 2015-03-19 2016-10-06 三菱電機株式会社 加湿素子および加湿装置

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7469973B2 (ja) 2020-07-09 2024-04-17 シャープ株式会社 加湿フィルタ用ホルダ、加湿フィルタユニットおよび加湿装置

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