JP3351811B2 - Manufacturing method of air conditioning element - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement in a partition or a spacer in an air conditioning element for performing heat exchange, humidity control, deodorization, and the like.

[0002]

2. Description of the Related Art Maintaining the comfort of a living space and saving energy is the largest and ultimate theme of an air conditioner manufacturer, and one of the influential methods is an air conditioning element, especially a heat exchanger element for an air conditioning ventilation fan. Is attracting attention.

As a heat exchanger element for simultaneously introducing outside air and discharging indoor air, a large number of single-faced cardboards, each having a flat liner bonded to one side of a corrugated core,
There is known a configuration in which the eyes are stacked in multiple stages such that the direction of each eye is orthogonal. In this heat exchanger element, the corrugated core plays the role of a partition / spacer.

The original form of the heat exchanger element having such a configuration is disclosed in Japanese Patent No. 930986 (JP-B-47-19990).
It is believed that this is the heat exchanger disclosed in Japanese Patent Application Publication No. However, in the embodiment of this patent, a partition plate made of Japanese paper mixed with synthetic fibers is used as a flat liner,
A sawtooth-shaped spacing plate made of kraft paper or Kent paper is used as the one corresponding to the center of the waveform.

JP-A-48-36075 discloses that a paper-like material having high hydrophilicity and chemical resistance is impregnated with an agent for absorbing a toxic gas, and these are arranged adjacently at predetermined intervals via a spacer. A toxic gas absorbent carrier is shown.

Japanese Patent Application Laid-Open No. 48-55871 discloses a toxic gas removing filter for an air purifier in which a cylindrical support is impregnated with an alkali metal salt and a gas absorbing solution.

Japanese Unexamined Patent Publication (Kokai) No. 55-159827 discloses that a honeycomb structure having a large number of parallel gas passages formed from paper containing an adsorbent (such as activated carbon) is treated with a water absorbent (such as lithium chloride). 2) shows a dehumidifier for a wet gas containing a dehumidifier body impregnated with the gas. In this dehumidifier, a part of the gas passage is a hot air passage, and the remaining part is a wet gas passage. FIGS. 1 and 2 of this publication show a case where the honeycomb structure is a cylindrical rotating body.

Japanese Patent Application Laid-Open No. 56-15828 discloses that a single-wave molded article obtained by bonding at least one of a flat sheet material and a corrugated sheet material with carbon fiber-containing paper and bonding the two sheet materials is laminated. A deodorizing element is shown. FIG. 3 shows a rotary element and FIG. 4 shows an orthogonal element.

Japanese Patent Application Laid-Open No. 56-16097 discloses that one of a flat sheet material and a corrugated sheet material is made of carbon fiber mixed paper, and the other is paper, cloth, asbestos paper, synthetic paper, synthetic resin. A single-wave molded body used for manufacturing a deodorizing heat exchanger element composed of a sheet material such as a sheet and bonding these planar sheet material and a corrugated sheet material to form a number of small through holes is shown. I have. In this case, the other sheet material can be impregnated with a moisture absorbent. FIG. 2 of this publication shows a rotary heat exchanger element,
The figure shows orthogonal heat exchanger elements.

Japanese Patent Application Laid-Open No. 57-102221 discloses that one of a flat sheet material and a corrugated sheet material is formed of paper mixed with carbon fiber, and the two sheet materials are bonded to form a large number of small through holes on both sides. It is a long half-wave molded body penetrating the edge, and the half-wave molded body is wound around the outer periphery of a core having a smooth peripheral edge shape. A method for manufacturing a deodorizing element which is crushed and formed into a desired shape and which is configured to allow a processing gas to pass through the entire surface of both ends of the element is shown.

JP-A-59-69125 discloses a method of purifying air using an element having a shape in which creped or embossed paper is wound into a roll.

Japanese Utility Model Application Laid-Open No. 57-119724 discloses a deodorizing filter for an air purifier in which a large number of guide passages are formed by partition walls formed of processed paper containing a porous material. FIG. 1 of this publication shows a multi-stage filter,
FIG. 3 shows a cylindrical element.

Japanese Utility Model Laid-Open Publication No. 61-71229 discloses that a columnar or cylindrical honeycomb rotor having a large number of gas passages containing a basic substance continuously removes a basic malodorous substance in a gas to be treated. A deodorizing device that can be used is shown.

Japanese Utility Model Application Laid-Open No. Sho 62-114621 discloses that when corrugated cardboard laminated with a flat sheet and a corrugated sheet is laminated in multiple layers to form a laminate having a large number of parallel through holes, a non-sheet material is used. A laminated structure for gas treatment is shown in which combustible paper is used and this non-combustible paper is impregnated with an extract or dry fraction of a camellia plant.

[0015]

In many of the prior art structures listed above, the partitions or spacers are made of corrugated sheet material. Formation of such a corrugated sheet,
In order to manufacture a single-wave corrugated cardboard structure together with a planar sheet using the same, a step-forming method using a corrugating machine is required industrially.

However, in order to be applicable to a corrugating machine, such a step-making method requires that the type of the sheet material has flexibility and shapeability suitable for step-forming, and further, has an adhesive property. Limited (substantially limited to paper only); the size and pitch of the corrugated sheet are limited; therefore, the pressure loss cannot be reduced below a certain limit; and the shape and orientation of the partition formed by the corrugated sheet However, there is a problem that there is a limit in terms of efficiency such as heat exchange efficiency.

Under such a background, the present invention provides a large degree of freedom in selecting a material by forming a partition wall or a spacer by a method completely different from the conventional method, and the size and shape of a void serving as an air passage. It is another object of the present invention to provide a method for manufacturing an air-conditioning element which is not limited in terms of pitch and which can be freely and optimally designed in terms of heat exchange efficiency, pressure loss and the like.

[0018]

According to the method for manufacturing an air conditioning element of the present invention, an ink containing microspheres in which a volatile liquid is included in a thermoplastic resin is printed on at least one surface of a sheet material (1) in a linear manner. After the heating, the microspheres are expanded by heating, and the linear printed portions are raised, thereby forming the partition walls.
Or a printed body (3) having a raised line (2) used as a spacer .

Hereinafter, the present invention will be described in detail.

As the sheet material (1), various materials such as paper, nonwoven fabric, metal sheet, ceramic sheet, wood board, fiber board and the like are used. One of the advantages of the present invention is that a wide range of materials can be used. Sheet material (1)
Main materials and functional materials (conductive materials, non-combustible / flame-retardant materials, etc.)
And a composite material.

In the present invention, as described above, an ink containing microspheres in which a volatile liquid is encapsulated in a thermoplastic resin is linearly printed on at least one surface of the sheet material (1), and then the fine particles are heated. By inflating the sphere to raise the linear printed portion, it can be used as a partition or spacer.
A printed material (3) having a raised line (2) to be used.

As a printing method, a screen printing method is particularly desirable, but a gravure printing method, a flexographic printing method, or other printing methods can also be employed. In some cases, a method of drawing while discharging ink from a nozzle is also adopted.

The raised line (2) used as a partition or a spacer is often formed in a vertical or horizontal direction parallel to the sheet material (1), but is not parallel. Alternatively, it may be non-linear such as a wavy line, a zigzag line, a curved line, or a spiral line.

The height of the raised line (2) can be set arbitrarily, but is often set to about 1 to 5 mm, especially about 1.5 to 3 mm.

The up line prime on both sides of the sheet material (1) (2) when to form, upon the stacking lower layer of the sheet material
The raised line (2) on the upper surface of (1) and the raised line (2) on the lower surface of the upper sheet material (1) are brought into contact in abutting condition.

Based on the printed body (3) having the above structure, various types of air conditioning elements are manufactured as described below.

The air-conditioning element of the first type shown in FIG. 1 has a large number of prints (3), and the direction of the swelling line (2) of each print (3) crosses one by one. Are stacked in multiple stages. In this case, the crossing angle is usually orthogonal. This type of air conditioning element
It is useful as a heat exchanger element for simultaneously introducing outside air and discharging indoor air.

In the air conditioning element of the second type shown in FIG. 2, a large number of prints (3) are formed such that the direction of the swelling line (2) of each print (3) is substantially the same. It is formed by stacking in multiple stages. This type of air conditioning element is useful as an element for humidity control (dehumidification or humidification) and cleaning (deodorization, antibacterial, dust removal).

The air conditioning element of the third type shown in FIG. 3 is formed by winding a printed body (3) such that the direction of the swelling line (2) is substantially in the axial direction. FIG.
Inside, (4) is the shaft and (5) is the hot air passage. This type of air conditioning element is used for heat exchange, humidity control (dehumidification or humidification),
Useful as an element for cleaning (deodorization, antibacterial, dust removal).

In order to achieve these objects, the sheet material (1) is provided with a humectant (calcium chloride, lithium chloride, superabsorbent resin, thermosetting resin microspheres, silica gel, zeolite, activated carbon, etc.), An odorant (eg, a plant-derived deodorant component (eg, a tea leaf dry fraction or an extract), an organic acid, a semicarbazide salt, activated carbon, a fragrance, and the like), an antibacterial agent, and the like can be supported.

The air-conditioning element obtained by the method of the present invention is used for air-conditioning equipment such as a total heat exchanger, a sensible heat exchanger, an air conditioner, a ventilation fan, an air purifier, a dust collector, a deodorizer, a dehumidifier, and a fan. Useful as an element.

[0032]

When the air conditioning element of the first type shown in FIG. 1 is used, for example, as a total heat exchanger, a sheet material is used.
(1) Using a material having moisture permeability, warm indoor air is flowed in the direction of the black arrow in FIG. 1 and cool outdoor air is flown in the direction of the white arrow. The warm air in the room flows through the gap between the ridges (2) of the even-numbered prints (3), while the cool air from the outdoors is between the ridges (2) of the odd-numbered prints (3). Flows through the void. In the meantime, total heat exchange between both airflows (temperature exchange and humidity exchange)
Is made.

When the second type air conditioning element shown in FIG. 2 is used, for example, as a deodorizer, a sheet material is used.
(1) The air having the deodorizing function is used, and indoor air is flowed in the direction of the black arrow. The air is the swelling line of the print (3)
Flows through the gap between (2), during which the odorous components are removed.

When the third type of air conditioning element shown in FIG. 3 is used, for example, as a dehumidifier, a sheet material is used.
(1) While carrying a dehumidifying agent, while rotating the wound printed body (3) around the axis, air containing moisture is flowed in the direction of the black arrow, and hot air is blown in the direction of the white arrow. Flow. The moisture-containing air is dehumidified by the sheet material (1) while passing through the columnar print (3). The sheet material (1), which has absorbed moisture, turns into a hot air passage
It reaches (5) and is dried.

[0035]

EXAMPLES Next, the method for producing the air conditioning element of the present invention will be further described with reference to examples.

Example 1 A kraft paper having a basis weight of 75 g / m ² was impregnated with an aqueous solution of calcium chloride, dried and dried to obtain 7.6% pure calcium chloride.
g / m ^{2 was} loaded.

Using this kraft paper carrying calcium chloride as a sheet material (1), microspheres (“D-51” manufactured by Teikoku Ink Mfg. Co., Ltd.) in which a volatile liquid is sealed in a thermoplastic resin on one side by a screen printing method ) (Foaming agent) and a number of parallel lines having a line width of 2.7 mm and a thickness of 550 μm were printed using a urethane-based ink containing fine-particle silicic acid (flow preventing and thickening agent). An 80 mesh stainless steel mesh was used as the screen.

The printed sheet material (1) was immediately introduced into a drying oven, and the printed portion was foamed at 120 ° C. for 10 minutes (that is, the microspheres were expanded). The line height after foaming (expansion) is 2.2mm, the line width is 3.0mm, and the pitch between lines is 8
mm. Thus, on one side of the sheet material (1), the partition wall
Or parallel raised lines used as spacers (2)
Thus, a printed body (3) on which was formed was obtained.

The printed body (3) was laminated or wound in multiple stages to produce the first, second and third types of air conditioning elements shown in FIGS.

Example 2 The calcium chloride-supporting kraft paper of Example 1 was used as a sheet material.
(1) used on one side by screen printing method,
Unexpanded microspheres composed of a vinylidene chloride copolymer ("Expancel DU" sold by Nippon Filite Co., Ltd., containing isobutane, average particle size 10 μm, bulk specific gravity 0.7, true specific gravity
A number of parallel lines were printed using an acrylic emulsion-based ink containing 1.3). An 80 mesh stainless steel mesh was used as the screen.

The printed sheet material (1) is guided to a drying oven, and
The printed portion was foamed at 20 ° C. for 5 minutes (that is, the unexpanded microspheres were expanded). The line height after foaming (expansion) is 2.0mm, the line width is 2.0mm, and the pitch between lines is 23mm
Met. As a result, one side of the sheet material (1), a partition wall or
A printed material (3) having parallel raised lines (2) used as spacers was obtained.

The printed body (3) was laminated or wound in multiple stages to produce the first, second and third types of air conditioning elements shown in FIGS.

[0043] The aluminum sheet used as a third embodiment the sheet material (1), and print a zigzag line shape by screen printing method using the ink of Example 1 on one surface, then the heat treatment, the partition wall or
Alternatively, a swelling line (2) used as a spacer was formed.

The prints (3) were laminated in multiple stages to produce a second type air conditioning element shown in FIG.

[0045]

According to the present invention, an ink containing microspheres in which a volatile liquid is contained in a thermoplastic resin is used as a sheet material (1).
After linearly printing on at least one surface of the microspheres, the microspheres are expanded by heating to cause the linear printed portion to bulge, thereby forming a bulging line (2) used as a partition wall or a spacer. The raised line (2) is used as a partition wall or a spacer.

Therefore, the sheet material (1) has a high degree of freedom in selecting the material, and a material that cannot be stepped by a corrugating machine can be used.

The height, pitch, and linear shape of the swelling line (2) used as a partition wall or spacer are not limited, so that pressure loss, heat exchange efficiency, dehumidification efficiency, deodorization efficiency, etc. Thus, an optimal design according to the purpose can be achieved.

Since the element is manufactured by a printing machine, a corrugating machine which is expensive and occupies a large space is not required, and the device cost and the manufacturing cost are remarkably advantageous as compared with conventional products.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a first type air conditioning element.

FIG. 2 is a perspective view showing a second type of air conditioning element.

FIG. 3 is a perspective view showing a third type of air conditioning element.

[Explanation of symbols]

(1) ... sheet material, (2) ... swelling line, (3) ... printed material
(4)… shaft, (5)… hot air passage

──────────────────────────────────────────────────続 き Continuation of the front page (72) Inventor Tasaku Ishida 294 Obayashi-cho, Moriyama-shi, Shiga Prefecture (72) Inventor Hiroyasu Furukawa 3-8, Yomei-cho, Otsu-shi, Shiga Prefecture (56) References JP-A-62-29898 (JP, A) JP-A-58-25982 (JP, A) JP-A-56-46725 (JP, A) JP-B 3-73796 (JP, B2) JP-B 3-15502 (JP, B2) ( 58) Fields surveyed (Int.Cl. ⁷ , DB name) F28F 3/00-3/14 F24F 7/08 101 F28D 9/00

Claims (4)

(57) [Claims] An ink containing microspheres in which a volatile liquid is encapsulated in a thermoplastic resin is linearly printed on at least one surface of a sheet material (1), and then the microspheres are expanded by heating to form the linear shape. by Moriagara the printing portion, the partition wall also
A method for manufacturing an air conditioning element, comprising: forming a printed body (3) having a raised line (2) used as a spacer . 2. The method according to claim 1, wherein a large number of prints (3) obtained in claim 1 are stacked in multiple stages such that the direction of a swelling line (2) of each print (3) crosses one by one. preparation of the air-conditioning element according to claim. 3. A process according to claim 1 obtained in printing material a large number of (3), characterized in that the direction is stacked in multiple stages to face substantially the same direction of the raised line (2) of the printing medium (3) the process of the air-conditioning element to be. 4. The printed body (3) obtained in claim 1 is wound so that the direction of the swelling line (2) is substantially in the axial direction .
And a method for manufacturing an air conditioning element.