JP6650679B2 - Vaporizing humidifier - Google Patents

Description

  The present invention relates to an evaporative humidifier obtained by improving a humidifying module configured by laminating humidifying materials.

  The vaporizing humidifier forms a humidifying module by laminating a humidifying material such as a nonwoven fabric having a water retention property, and performs humidification by supplying water to the humidifying module and bringing the humidifying material into contact with conditioned air. As a conventional humidifying module, for example, as shown in FIG. 8 of Patent Document 1, an oblique corrugated sheet is used as a humidifying material, and the corrugated sheets are alternately laminated to form a block shape, so Space was secured. The humidification module of this structure has an excellent humidification efficiency because the direction of the air flow and the direction of the flow path formed by the corrugated plate intersect, so that the air flow can be circulated inside the module in a turbulent state. ing.

  However, since a humidifying material such as a nonwoven fabric has flexibility, individual corrugated sheets may be stretched at the time of lamination. It was difficult to stack them in a precise block shape. Further, in order to prevent the elongation of the corrugated sheet, the apex portion of the laminated corrugated sheet has been fixed with an adhesive, but the adhesive is accurately applied to two corrugated sheets that are in point contact. The work was troublesome, and it was also difficult to securely fix the corrugated sheets without crushing the corrugated sheets.

  When a humidifying material obtained by alternately laminating oblique corrugated sheets is laminated in a block shape, since the upper and lower portions of the humidifying material are covered with a casing of a humidifier or the like, as shown in FIG. In the upper part, the lower part of the block on the outlet side of the airflow, the opening of the corrugated sheet is closed at the lower part of the block, so that the airflow becomes difficult to flow, and there is also a phenomenon that the contact efficiency between the air and the humidifying material is reduced.

  Patent Literature 1 also discloses a technique in which a plurality of corrugated sheets adhered on a flat plate are laminated in a block shape to prevent the corrugated sheets from elongating during lamination. However, in the technique of Patent Document 1, since each corrugated sheet is arranged in parallel with the direction of the airflow, the airflow is in a laminar flow state in the block, and as in a humidifying material in which oblique corrugated sheets are alternately stacked. The efficiency of contact between the air and the humidifying material was lower than that in a turbulent air flow.

JP-A-2007-071503

  An object of the present invention is to provide a wet humidifier having improved humidification performance by allowing air to pass through the humidification module evenly and efficiently contacting the humidifying material in the module with the inflowing air. To provide. Another object of the present invention is to improve the productivity of a humidifying module and a humidifier having the same by eliminating the expansion of a corrugated sheet by attaching a flat plate to an oblique corrugated sheet to form an integral humidifying material. It is.

The wet humidifier of the present invention has the following configuration.
(1) A plurality of humidifying materials including a corrugated sheet having a ridgeline formed obliquely to an inflow direction of an airflow, and a flat plate having the corrugated sheet fixed on at least one surface.
(2) The plurality of humidifying materials are laminated in a block shape such that the directions of the ridgelines of the adjacent corrugated sheets are alternately arranged, and one of the four peripheral end surfaces of the block is used as an airflow inflow portion. And a humidifying module having another end face as an outflow portion of an airflow.
(3) a large number of small holes formed in the flat plate and the wave plate.
(4) The humidifying module stacks a plurality of humidifying materials such that a corrugated plate of each humidifying material is in contact with a flat plate of another humidifying material.

  In the present invention, since a large number of small holes are formed in at least one of the corrugated plate and the flat plate, the airflow passes not only through the flow path between the corrugated plate and the flat plate, but also through the corrugated plate and the flat plate. It can also flow into adjacent flow paths. As a result, even when using a corrugated plate obliquely arranged with respect to the incoming airflow, the airflow can be efficiently brought into contact with the humidifying material without impairing the airflow at the upper and lower portions of the humidifying module. Can be.

  In the present invention, since the corrugated sheet is fixed to a flat plate, when a humidifying module is manufactured by stacking a plurality of humidifying materials in a block shape, the corrugated sheet does not stretch, and the dimensional accuracy of each humidifying material is not increased. The humidification module can be assembled while maintaining the condition. Therefore, the humidification module can be manufactured easily and accurately.

When laminating the corrugated and flat as this, prevents the ridge of the corrugated sheet contacts the other corrugated sheet with point contact as in the case of repeated wave plates are, applied to the ridges of the corrugated during the lamination The force is distributed, preventing damage to the corrugated plate during assembly of the humidifying module.

The wet humidifier of the present invention is a corrugated sheet having a ridgeline formed obliquely to the inflow direction of the airflow, a plurality of humidifying materials including a flat plate having the corrugated sheet fixed to at least one surface, Are laminated in a block shape so that the directions of the ridge lines of the adjacent corrugated sheets are alternately arranged, and one end face among four end faces of the block is used as an inflow portion of an air flow, and the other one end face is used. A humidifying module having a humidifying material, and a corrugated plate and a plurality of small holes formed in the flat plate, wherein the humidifying module includes at least a part of a plurality of humidifying materials, one humidifying material. Is brought into contact with the flat plate of another humidifying material, and the corrugated plate of the one humidifying material and the corrugated plate of a humidifying material different from the other humidifying material are laminated. By doing so, the flat plate portion becomes thicker than the corrugated plate, and the water retention performance per unit volume is improved.

  It is preferable that the humidifying material is formed of a non-woven fabric containing a synthetic resin having heat welding property. This eliminates the need for an adhesive at the time of bonding the corrugated sheet and the flat plate, and allows the two to be easily joined by a device such as a heat sealer.

  It is preferable that the humidifying material is made of a plate-shaped or sheet-shaped synthetic resin whose surface is subjected to a water retention process. In this case, the humidifying material can be formed from a material having higher rigidity as compared with the nonwoven fabric, and the strength of the humidifying module and the ease of handling during assembly are improved.

  ADVANTAGE OF THE INVENTION According to this invention, it becomes possible to make an air current pass uniformly in a module by making many small holes in at least one of the corrugated board and flat plate which comprise a humidifying material, Humidification performance can be improved by making more air contact.

The perspective view showing the humidification module of a 1st embodiment. FIG. 3 is an exploded perspective view of a humidifying material in the humidifying module according to the first embodiment. FIG. 3 is an enlarged perspective view of the humidifying material of FIG. 2. FIG. 3 is an enlarged cross-sectional view of the humidifying material of FIG. 2 and a front view illustrating an angle of a corrugated sheet. The exploded perspective view of the humidification material of a 2nd embodiment. The schematic diagram which shows the airflow in the conventional humidification module.

[1. First Embodiment]
[1-1. Constitution]
FIG. 1 is a perspective view showing a first embodiment of the present invention. The humidifying module according to the present embodiment includes sheet metal side panels 1a and 1b, upper and lower frames 2a and 2b provided on upper portions of the side panels 1a and 1b, and front and rear portions provided on lower portions of the side panels 1a and 1b. Is a box-shaped member having lower frames 3a and 3b. Inside the side panels 1a, 1b and the upper and lower frames 2a, 2b, 3a, 3b, a plurality of humidifying materials 4 are stored in a state of being stacked in a block shape.

  As shown in the exploded perspective view of FIG. 2A, each humidifying material 4 is configured by joining a corrugated plate 4b to the surface of a flat plate 4a. The flat plate 4a and the corrugated plate 4b are made of a non-woven fabric made of a polyester fiber having heat welding property. In a state where the corrugated plate 4b is overlaid on the flat plate 4a, the surface of the flat plate 4a and the ridge line of the corrugated plate 4b are heated. The two are joined by welding.

  As shown in the enlarged perspective view of FIG. 3, a large number of small holes 5 are provided in each of the flat plate 4a and the corrugated plate 4b. The size of the small holes 5 is about φ1 to 2 mm, and the spacing is about 8 in 1 inch square, which is desirable for humidification performance. can do. As shown in FIG. 4A, in the present embodiment, the pitch of the corrugated sheet 4b is about 8.4 mm and the height is 5.4 mm, but is not limited to this dimension. The angle of the corrugated plate 4b with respect to the airflow direction is 30 ° as shown in FIG. 4 (b), but this also depends on the airflow speed, the number of layers of the humidification material, etc. Can be appropriately changed so as to be optimal.

  As shown in the exploded perspective view of FIG. 2A, in the present embodiment, the plurality of humidifying materials 4 are stacked such that the flat plates 4a and the corrugated plates 4b of the adjacent humidifying materials 4 alternately overlap. Therefore, as shown in FIG. 2B, two humidifying materials 4 having different inclination directions of the corrugated plates 4b are prepared so that the directions of the ridge lines of the corrugated plates 4b of the respective humidifying materials 4 are alternately arranged. The humidification module is constructed by alternately overlapping.

  In this case, the plurality of humidifying materials 4 are stacked in a block shape so that the humidifying material 4 faces the side panels 1a and 1b, and one of the four peripheral end surfaces of the block is connected to the airflow inflow portion 6a. And the other end face is an outflow portion 6b of the airflow. A cushioning material 7 such as styrofoam is inserted between the humidifying material 4 and the side panels 1a and 1b to prevent rattling of the humidifying material 4 overlapped. The upper and lower portions of the humidifying material 4 laminated in a block shape are exposed between the upper frames 2a and 2b or the lower frames 3a and 3b, and are exposed between the upper frames 2a and 2b from above the humidifying module. 4 is supplied with water for humidification.

[1-2. Action / Effect]
According to the humidifying module of the present embodiment, the plurality of humidifying materials 4 have their corrugated plates 4b alternately laminated in different directions. Performance is improved. That is, when the corrugated sheet 4b is parallel to the airflow, the airflow passes straight and enters a laminar state, whereas the corrugated sheet 4b alternately stacks the oblique humidifying materials 4 so that the airflow is reduced. Since the humidifying material 4 passes through the module in all directions and becomes turbulent, the entire surface of the humidifying material 4 comes into contact with air, so that the humidifying performance is improved. As a result, in order to obtain the same humidification performance, a module in which humidifying materials having corrugated sheet shapes are alternately stacked can have a shorter depth dimension than a module in which humidifying materials having corrugated sheet shapes parallel to each other.

  Further, by forming the humidifying material 4 of an integral structure in which the flat plate 4a is attached to the oblique corrugated plate 4b, the corrugated plate 4b of the humidifying material 4 does not elongate, the difficulty in assembling the module is eliminated, and the evaporative humidifier is used. Productivity is improved. By joining the flat plate 4a and the corrugated plate 4b, the strength as the humidifying material 4 is increased, and the durability is improved. The use of heat welding as a method of bonding the flat plate 4a to the oblique corrugated plate 4b also has an advantage that an application step and an adhesive are not required.

  In particular, in the present embodiment, in addition to the turbulent flow effect by the oblique corrugated sheet 4b, the airflow also flows between the adjacent humidifying materials 4 because a number of small holes 5 are formed in the humidifying material as shown in FIG. pass. As a result, since the airflow passes all over the module, the area of the humidifying material 4 can be used effectively, the turbulence effect is further promoted, and the humidifying performance is improved as compared with the conventional module. Although the humidification performance is indicated by the saturation efficiency, the same saturation efficiency can be obtained even when the depth dimension is made shorter than that of the conventional technique, and when the depth dimension is the same, a higher saturation efficiency can be obtained than before.

A humidifying module of the present embodiment and a humidifying module using a humidifying material having the same shape and no small holes were subjected to a comparative experiment of humidifying performance.As a result, a humidifying material having small holes was compared with a humidifying material having no small holes. As shown in Table 1 below, it was confirmed that the saturation efficiency was improved by about 10%.

[2. Second Embodiment]
A second embodiment will be described with reference to FIG. In this embodiment, as shown in FIG. 5A, a plurality of humidifying materials 4 formed by joining a flat plate 4a and a corrugated plate 4b are superposed so that the flat plates 4a or the corrugated plates 4b face each other. This is a module configuration.

In the present embodiment, the directions of the corrugated sheets 4b are alternated by using the humidifying material 4 having the same shape as shown in FIG. A humidifying module can be manufactured. Therefore, in addition to the operation and effect of the first embodiment, it is not necessary to prepare two types of humidifying materials 4 as in the first embodiment, and it is possible to manufacture a module with one type of humidifying material 4. Therefore, productivity is also improved.
[3. Other Embodiments]
The present invention is not limited to the above embodiments, but includes other embodiments as described below.
(1) As for the humidifying material, the corrugated plate 4b may be bonded to both surfaces of one flat plate 4a, or conversely, the flat plate 4a may be bonded to both surfaces of one corrugated plate 4b. Further, the flat plate and the corrugated plate may be made of different materials. For example, the corrugated plate may be a nonwoven fabric, and the flat plate may be a thin resin plate or a metal sheet such as aluminum.

(2) In the illustrated embodiment, the small holes are formed in both the flat plate and the corrugated plate, but the small holes may be formed in only one of them. The shape of the small hole is not limited to a circle, and may be appropriately selected such as an ellipse, a square, a triangle, and a star. The size and shape of the small holes may be different between the flat plate 4a and the corrugated plate 4b. A part of the humidifying material may be set up around the small hole. For example, when a small hole is opened by a pin-shaped member, a burr portion may be left around the small hole, and that portion may further improve the water retention performance.

(3) The bonding between the flat plate and the corrugated plate is not limited to the thermal welding, and other adhesives, pressure-sensitive adhesives, double-sided adhesive tapes and the like can be used. Joining members such as staples can also be used.

(4) In the illustrated embodiment, the side panels and the upper and lower frames made of sheet metal are used. However, a panel or a frame made of resin may be used, or a protection net may be provided at the inflow portion 6a or the outflow portion 6b of the airflow. May be provided. By joining the superposed humidifying materials 4, that is, all the corrugated plates 4b and the flat plates 4a, a humidifying module can be formed without using a frame or a side panel.

1a, 1b Side panels 2a, 2b Upper frame 3a, 3b Lower frame 4 Humidifying material 4a Flat plate 4b Corrugated plate 5 Small hole 6a Inflow portion 6b Outflow portion 7 Buffer material

Claims (4)

A corrugated sheet having a ridge line formed obliquely to the inflow direction of the airflow, and a plurality of humidifying materials including a flat plate having the corrugated sheet fixed to at least one surface,
The plurality of humidifying materials are laminated in a block shape such that the directions of the ridge lines of the adjacent corrugated sheets are alternately arranged, and one end face of four end faces of the block is used as an airflow inflow portion, and A humidification module having one end face as an outflow portion of the airflow;
A plurality of small holes formed in the flat plate and the wave plate,
Equipped with a,
A wet humidifier, wherein the humidifying module is stacked such that a corrugated plate of each humidifying material and a flat plate of another humidifying material are in contact with each other in a plurality of humidifying materials . A corrugated sheet having a ridge line formed obliquely to the inflow direction of the airflow, and a plurality of humidifying materials including a flat plate having the corrugated sheet fixed to at least one surface,
The plurality of humidifying materials are laminated in a block shape such that the directions of the ridge lines of the adjacent corrugated sheets are alternately arranged, and one end face of four end faces of the block is used as an airflow inflow portion, and A humidification module having one end face as an outflow portion of the airflow;
A large number of small holes formed in the corrugated plate and the flat plate,
With
The humidifying module, in at least a part of the plurality of humidifying materials, contacts a flat plate of one humidifying material with a flat plate of another humidifying material, and the corrugated sheet of the one humidifying material is different from the other humidifying material. laminated wet humidifier as corrugated plate humidification material is in contact. The wet humidifier according to claim 1 or 2, wherein the humidifying material is formed of a nonwoven fabric containing a synthetic resin having heat welding properties. The wet humidifier according to claim 1 or 2, wherein the humidifying material is made of a plate-shaped or sheet-shaped synthetic resin whose surface is subjected to a water retention process.