KR20010021243A - Humidification element for vaporizing humidifier - Google Patents

Abstract

PURPOSE: A humidifying element for vaporizing humidifier is provided to suppress generation of adhesion odor effectively by coupling a basic material applied with a coating exhibiting a specified water absorbance to the surface of a paper composed of specific inorganic or organic fibers while forming a cavity for conducting air between adjacent basic materials. CONSTITUTION: A basic material(10) is a sheet material where a coating containing inorganic particles having average grain size of 5-30 μm exhibiting water absorbance and an organic binder is applied to the surface of a paper made of inorganic and flame retardant organic fibers having fiber diameter of 1-13 μm and fiber length of 5-50 μm. Alternatively, it is a sheet material made of slurry containing inorganic fibers, organic fibers, inorganic particles and an organic binder. The sheet material is then corrugated. A humidifying element(1) is formed into a block, as a whole, by laying the corrugated basic material(10) in a plurality of layers. Glass fiber or ceramic fiber is used as the organic fiber and reinforced polyethylene terephthalate or flame retardance vinylon fiber is used as the flame retardant organic fibers.

Description

Humidification element for vaporization type humidifier {HUMIDIFICATION ELEMENT FOR VAPORIZING HUMIDIFIER}

The present invention relates to a humidifying element for use in a vaporized humidifier that vaporizes water into a membrane to provide humidified air.

In a general air conditioning system, a humidifier is built in to keep the air in a suitable humidity state. As one of the humidifiers, a vaporized humidifier which vaporizes water in the form of a film as described in, for example, Japanese Patent Laid-Open No. 2-217732 is widely used.

The vaporizing humidifier incorporates a humidifying element made of a substantially block-like structure in which substrates formed in a wave shape or the like are connected to form a cavity for air circulation between adjacent substrates. There are also various substrates, and it is common to bind inorganic fibers, fillers and the like with an inorganic binder to form a sheet.

However, the humidifying element, in addition to the odor of the raw material itself or the odor mixed at the time of manufacturing (hereinafter referred to as the initial odor of the product), the odor substance contained in the outside air adheres to the substrate during the operation stop period, and is restarted. When this is done, this odorous substance escapes and produces a odor (hereinafter referred to as adherent odor).

For this reason, in order to suppress the occurrence of these evils, Japanese Unexamined Patent Application Publication No. 8-21644 proposes a substrate obtained by impregnating alumina gel on a cardboard made of alumina fibers and sintering it.

However, none of the conventional humidifying elements can avoid the initial odor of the product, and as described in Japanese Patent Application Laid-open No. Hei 8-21644, it is necessary to perform a special treatment. In addition to causing high cost by the addition of the step, new problems such as water wettability decrease.

The present invention has been made in view of such a situation, and it is to provide a humidifying element for an evaporative humidifier that can reduce the occurrence of the initial odor as little as possible and can effectively suppress the occurrence of adherent odor without requiring additional treatment. The purpose.

1 is a perspective view showing a humidifying element of the present invention

Figure 2 is a schematic perspective view showing an example of the end-machine

Figure 3 is a schematic perspective view showing another example of the end machine

4 is a schematic configuration diagram showing the ventilation device used in the embodiment;

FIG. 5 is a schematic configuration diagram showing an apparatus used for forcibly attaching odor to a humidifying element in an embodiment. FIG.

<Description of the symbols for the main parts of the drawings>

1, 42, 51: humidification element 10: base material

11: cavity for air distribution 20, 30: end processing machine

21a, 21b: roller 22: sheet material

23: unevenness 31a, 31b: endless belt

32: projection 33a, 33b: drive roller for conveyance

40: blower 41: filter

50: sealed container 52: tobacco

MEANS TO SOLVE THE PROBLEM As a result of earnestly examining, it discovered that the said subject can be solved by constructing a base material from a specific material and improving the shape, and came to complete this invention.

That is, the said subject is a humidification element incorporated in the vaporization type humidifier which evaporates and vaporizes water in a film form, Comprising: It has a fiber diameter of 1-13 micrometers, and has a fiber length of 5-50 mm. On the surface of paper made of inorganic fibers and flame retardant organic fibers, the sheet material formed by forming a film containing inorganic particles having an absorbent particle and an organic binder with an average particle diameter of 5 to 30 µm was formed into a wavy shape. It is achieved by a humidifying element for a vaporized humidifier characterized in that the formed substrate is connected to form a cavity for air circulation between adjacent substrates.

The same object of the present invention is a humidifying element, which is incorporated in a vaporized humidifier for evaporating water into a film form, having a fiber diameter of 1 to 13 µm and a fiber length of 5 to 50 mm. Cavity for air circulation between adjacent substrates is formed by forming an inorganic fiber and a flame-retardant organic fiber, an inorganic particle having an average particle diameter of 5 to 30 µm, an absorbent inorganic particle, and a sheet material containing an organic binder into a wavy shape. It is achieved by a humidifying element for vaporization type humidifier, characterized in that the connection is made to form a.

In particular, the cavity is preferably inclined gradually from the inflow side of the air toward the outflow side.

EMBODIMENT OF THE INVENTION Hereinafter, the humidification element for vaporization type humidifiers of this invention (henceforth a simply humidification element) is demonstrated in detail with reference to drawings.

As shown in Fig. 1, the humidifying element 1 of the present invention is formed by stacking a plurality of substrates 10 formed in a wave shape in a substantially block shape as a whole.

The base material 10 has a fiber diameter of 1 to 13 µm, an average particle diameter of 5 to 30 µm, and an absorbency on the surface of paper made of inorganic fibers and flame retardant organic fibers having a fiber length of 5 to 50 mm. A sheet material formed by forming a film containing an inorganic particle having an organic binder and a slurry formed by forming a sheet material formed by forming a slurry containing the inorganic fiber, organic fiber, inorganic particles, and an organic binder in a wavy shape can be obtained. . In addition, a method of annealing may be a well-known method.

As the inorganic fiber, glass fiber, ceramic fiber, alumina fiber or the like can be suitably used. Moreover, you may mix and use these as needed. Moreover, you may mix different fiber diameter and fiber length.

On the other hand, as the flame retardant organic fibers, fibers such as GF-reinforced polyethylene terephthalate (PET), flame retardant vinylon fibers, flame retardant modacrylic synthetic fibers, and vinylidene fibers can be suitably used. Moreover, you may mix and use these as needed. Moreover, you may mix things with a different fiber diameter or fiber length.

In both inorganic fibers and flame retardant organic fibers, the fiber diameter and the fiber length are inferior in moldability and shape retainability as a substrate outside the above ranges.

In addition, the blending ratio of the inorganic fibers and the flame retardant organic fibers is preferably inorganic fibers: flame retardant organic fibers = 30 to 50:70 to 50, and other than this blending ratio, the blendability and shape retainability as the substrate are inferior.

The inorganic particles are preferably more excellent in absorbency, and powders such as calcined diatomaceous earth, aluminum hydroxide and silica gel can be suitably used. Moreover, you may mix and use these as needed. Moreover, you may mix different particle diameters.

The inorganic particles function as a filler for maintaining the shape of the substrate, and by containing the inorganic particles, the substrate 10 has a suitable gap, the amount of water retained is increased, and the water wettability is improved by the capillary phenomenon. . Therefore, such an effect cannot be fully obtained except the particle diameter mentioned above.

As an organic binder, a vinylidene chloride emulsion, an aqueous epoxy emulsion, a PVA emulsion, an EVA emulsion, etc. can be used suitably, You may mix and use these as needed. In addition, in consideration of the influence on the water wettability of the organic binder, it is preferable to select one having a low film forming property.

Organic binders have a higher binding force than inorganic binders, and thus suppress the detachment of the inorganic particles, which are the source of the initial odor of the product, or the optional components of antimicrobial agents or flame retardants, and end up in a small amount, and thus have a specific surface area. Can be made small, and it is effective also in reducing adhesion odor.

The amount of the inorganic particles and the organic binder is preferably 30 to 40 parts by weight of the inorganic particles and 10 to 20 parts by weight of the organic binder with respect to 100 parts by weight of the total of the inorganic fibers and the organic fibers.

In addition, in the case where the slurry containing the inorganic fibers, the organic fibers, the inorganic particles, and the organic binder is prepared as a sheet material, it is preferable to add a suitable flocculant to the slurry. By adding the flocculant, the excess active agent contained in the organic binder can be removed, so that loss of the active agent from the humidifying element can be eliminated, and generation of bubbles during use of the humidifying element can be suppressed.

In addition, in this case, since the production of the sheet member is completed with only one annealing, the cost can be reduced by reducing the number of steps.

In the present invention, the base material 10 includes inorganic fibers, organic fibers, inorganic particles, and organic binders as essential components, but an appropriate amount of additives such as an antibacterial agent, a flame retardant, and a coloring agent may be added as necessary. Any of these is known as a raw material for a humidifying element. Thereby, the effect according to the kind of additive is added.

And the said sheet | seat material is shape | molded by the single process machine as shown in FIG. 2 or FIG. 3 preferably by the wave form of a specific shape.

The single processing machine 20 shown in FIG. 2 is comprised by the pair of roller 21a, 21b of the helical gear shape, and the sheet | seat material 22 is roller 21a, ( As it passes between 21b), continuous irregularities 23 are formed. As shown in the figure, the unevenness 23 has a certain angle (meandering angle) with respect to the edge of the sheet material 22, corresponding to the twist angle of the luxury of the rollers 21a and 921b. It is formed at an angle.

In addition, the end processing machine 30 shown in FIG. 3 consists of a pair of endless belts 31a and 31b, and the some processus | protrusion 32 extended in the width direction protrudes by the predetermined pitch on the surface. It is shaped. The endless belts 31a and 31b are arranged such that the projections 32 intersect with both ends of the sheet member 22 at an angle, and pass through the endless belts 31a and 31b. The sheet member 22 is provided with irregularities 23 having a meandering angle corresponding to this angle. Reference numerals 33a and 33b in the drawing refer to a driving roller for conveyance, but the driving rollers 33a and 33b for carrying the endless belt 31a are orthogonal to the conveying direction of the sheet material 22. And 31b.

Moreover, the said meandering angle is suitable for the range of 15-60 degrees.

As mentioned above, the sheet | seat material 22 in which the wavy unevenness | corrugation 23 had a certain meandering angle becomes the base material 10 cut | disconnected to predetermined length. As shown in FIG. 1, the top of one base 10a and the valley of the other base 10b are joined to each other so as to form a cavity 11 for air circulation, and a honeycomb on both sides as a whole. It becomes a substantially block-shaped structure having an opening surface divided into shapes. In this connection state, since the waveform of the base material 10 corresponds to the unevenness 23 formed by the meandering angle, the cavity 11 gradually inclines from one opening face toward the other opening face. have. Therefore, compared with the case of the same depth D, the surface area of the base material 10 becomes wider, more water can be retained, and the humidification efficiency improves compared with the case where the cavity is horizontal.

Hereinafter, an Example and a comparative example are given and this invention is further demonstrated. In addition, in mixing | blending, a part is a weight part.

(Example 1)

40 parts of glassy fiber having a diameter of 9 µm and a fiber length of 30 mm, 10 parts of polyethylene terephthalate (PET) fibers having a diameter of 10 µm and a fiber length of 30 mm, and 50 parts of flame retardant vinylon fibers having a diameter of 10 µm and a fiber length of 10 mm The mixed paper was dispersed and mixed with 200 parts of two kinds of calcined diatomaceous earth having an average particle diameter of 5 μm and 10 μm, 5 parts of an antimicrobial agent, and 15 parts of an inorganic colorant in 1060 parts of water. 100 parts of vinylidene chloride-type emulsions were mixed, the slurry adjusted so that total solid content might be 20% concentration was apply | coated, and it dried at 110 degreeC so that water content might be 10 to 30%, and the sheet | seat material was produced. Subsequently, the sheet | seat material was used for the sheet | seat process machine shown in FIG.

Then, the substrate was cut out, and as shown in FIG. 1, a humidifying element was produced by connecting the adjacent substrates to form a cavity for air circulation. In addition, the shape of the humidification element set the opening surface to the square of 300 mm per side, and set the depth to 30 mm.

(Example 2)

Flame retardant vinylon with 18 parts of glass fibers having a diameter of 1 m and a fiber length of 50 mm and a diameter of 9 m and a fiber length of 30 mm, 4 parts of a PET fiber having a diameter of 10 m and a fiber length of 30 mm 22 parts of fibers, 40 parts of two kinds of calcined diatomaceous earth having an average particle diameter of 5 μm and 10 μm, an antibacterial agent, and 3 parts of an inorganic colorant are dispersed and mixed in 100 parts of water. 15 parts of a den-type emulsion and 5 parts of a water-based epoxy emulsion were added, the dispersing agent, the flocculant, etc. were added suitably, and it dried and dried by 60 mesh wire mesh, and the sheet | seat material was produced. Subsequently, water is sprayed onto the sheet material so as to have a water content of 10 to 30% by spraying, and the substrate is formed by using a unit processing machine shown in FIG. Got it.

And this base material was cut out and the humidification element similar to Example 1 was produced.

(Comparative Example 1)

It is a binder made by dispersing and mixing paper of 9 µm in diameter and 30 mm in fiber length with 200 parts of calcined diatomaceous earth having an average particle diameter of 20 µm, 5 parts of antibacterial agent, and 15 parts of inorganic colorant in 930 parts of water. 100 parts of silica-based inorganic binders were mixed, the slurry adjusted so that total solid content might be 20% concentration, and it dried at 110 degreeC so that moisture content might be 10-30%, and the sheet | seat material was produced. Subsequently, the sheet | seat material was used for the sheet | seat process machine shown in FIG.

And this base material was cut out and the humidification element similar to Example 1 was produced.

(Comparative Example 2)

A binder prepared by dispersing and mixing paper of 9 µm in diameter and 30 mm in fiber length, dispersed in 200 parts of calcined diatomaceous earth having an average particle diameter of 20 µm, 5 parts of antimicrobial agent, and 15 parts of inorganic colorant in water of 1060 parts. 100 parts of film-forming vinylidene chloride emulsions were mixed, the slurry adjusted so that total solid content might be 20% concentration, and it dried at 110 degreeC so that water content might be 10-30%, and the sheet | seat material was produced. Subsequently, although the sheet material was formed by using the short processing machine shown in Fig. 2, the wavy irregularities could not be formed.

(Comparative Example 3)

40 parts of cellulose fibers having a diameter of 10 µm and a fiber length of 50 mm, 10 parts of PET fibers having a diameter of 10 µm and a fiber length of 100 mm, 100 parts of aluminum hydroxide powder having an average particle diameter of 1 µm, and an antimicrobial agent 5 Part and 15 parts of an inorganic colorant were dispersed and mixed in 630 parts of water, and 100 parts of a film-forming vinylidene chloride emulsion as a binder was mixed to apply a slurry adjusted to a total solid content of 20%. It dried so that moisture content might be 10 to 30%, and produced the sheet | seat material. Subsequently, the sheet | seat material was used for the sheet | seat process machine shown in FIG.

And this base material was cut out and the humidification element similar to Example 1 was produced.

About the humidification element obtained as mentioned above, evaluation shown below was performed.

(Initial odor evaluation of the product)

Evaluation was performed using the ventilation apparatus shown in FIG. This ventilator is provided with the blower 40 at one end, and after purifying the air from this blower 40 with the filter 41, it sends it to the humidification element 42 attached to the other end. It is configured to. Moreover, the nozzle is provided in the upper part of the humidification element 42 at intervals of 10 mm (not shown), and tap water is sprayed.

The humidification element 40 immediately after manufacture was attached to the above apparatus, and 60 (L /) was passed from the nozzle to the humidification element while passing clean air having a temperature of 25 ° C and a relative humidity of 30% RH at a passage wind speed of 2.5 (m / s). After supplying tap water in the quantity of h), the odor generated from the humidifying element is promptly selected by five panelists selected randomly under the odor judgment in accordance with the Enforcement Decree of the Odor Prevention Act. The odor intensity display method was used to evaluate the average value.

In addition, the criteria of the six-stage odor intensity display method are as shown in Table 1.

Table 1: Criteria for Six Stage Odor Intensity Labeling Odor intensity Odor 0 No odor One Barely detectable odor 2 Weak odor to know what odor 3 Easily detectable odor 4 fetor 5 Intense stink

(Attached odor evaluation)

As shown in Fig. 5, the humidification element 51 immediately after the production was put in a sealed container 50 of 1 m 3, and the lit cigarette 52 was put in the container 50, and then the fan 53 was placed. By operating, the smoke of the tobacco 52 is sufficiently brought into contact with the humidifying element 51. This state was maintained for 12 hours and the evaluation sample was performed.

The sample obtained in this way was attached to the ventilation apparatus shown in FIG. 4, and the adhesion odor was evaluated by the method and evaluation similar to product initial odor evaluation.

(Water wetness evaluation)

One substrate is selected at random immediately after the end molding, and 50 µl of water is dropped on the surface of the substrate until the bottom surface is not in direct contact with the lamp in a horizontal state until the water droplets are completely absorbed. The time of was measured.

(Flame retardancy test)

However, one base material immediately after molding was randomly selected, and the flame retardancy evaluation was performed based on UL94 which is a flame retardancy evaluation method.

The above evaluation results are collectively displayed in Table 2.

Table 2: List of Test Evaluation Results Example 1 Example 2 Comparative Example 1 Comparative Example 2 Comparative Example 3 Machinability Good Good Good Bad Good Initial odor evaluation of the product 0.8 0.7 3.5 --- 1.1 Adhesion Odor Evaluation 1.2 1.3 4.8 --- 3.3 Water Wetability Evaluation Less than 1 second Less than 1 second 3 to 4 seconds --- 30 seconds or more Flame retardant UL94V1 UL94V0 UL94V0 --- fail Comprehensive Evaluation ◎ ◎ × × ×

As shown in Table 2, the humidifying elements shown in Examples 1 and 2 according to the present invention are significantly less product initial odor and adherent odor compared to the humidifying elements shown in Comparative Examples 1 and 3, and water wettability. Also good results have been obtained for flame retardancy.

As described above, according to the present invention, it is possible to obtain a humidifying element for a vaporized humidifier in which the occurrence of product initial odor and adherent odor are greatly reduced. In addition, in the manufacture, only the same annealing work as in the related art, or only an application work is added, and there is no particular complexity involved.

Claims (5)

A humidifying element that is incorporated into a vaporized humidifier that evaporates water into a film form, wherein the paper is made of inorganic fibers and flame retardant organic fibers having a fiber diameter of 1 to 13 µm and a fiber length of 5 to 50 mm. On the surface, a substrate formed by forming a wave material of a sheet material formed by forming an inorganic particle having an average particle diameter of 5 to 30 µm and a film containing an organic binder and forming an organic binder is formed, and a cavity for air circulation is formed between adjacent substrates. Humidification element for evaporative humidifier, characterized in that made so as to connect. A humidifying element incorporated into a vaporized humidifier for evaporating and evaporating water into a film, comprising inorganic fibers and flame retardant organic fibers having a fiber diameter of 1 to 13 µm and a fiber length of 5 to 50 mm, and an average particle diameter. Evaporative humidifier, characterized in that the substrate formed by forming a wave material of the inorganic particles having a water absorption of 5 to 30㎛ and the organic binder in a wavy shape are connected to form a cavity for air circulation between adjacent substrates. Humidification element. The humidification element according to claim 1 or 2, wherein the cavity is gradually inclined from the inflow side of the air toward the outflow side. The humidification element according to claim 1, 2 or 3, wherein the mixing ratio of the inorganic fiber and the flame retardant organic fiber is inorganic fiber: flame retardant organic fiber = 30 to 50: 70 to 50. . The amount of the inorganic particles and the organic binder is 30 to 40 parts by weight of the inorganic particles and the organic binder to 100 parts by weight of the total amount of the inorganic particles and the organic fibers. Humidification element for evaporative humidifier, characterized in that 10 to 20 parts by weight.