JP6532564B2 - Method of manufacturing desiccant rotor - Google Patents

Description

  The present invention relates to a method of manufacturing a desiccant rotor.

  The process of manufacturing a desiccant rotor carrying a polymeric sorbent and various hygroscopic agents has the following steps. A sheet having a fixed width carrying a hygroscopic agent and the sheet are corrugated and then joined to produce a cardboard structure, after which the cardboard structure is formed on the outer periphery of a cylindrical body (hereinafter referred to as an inner cylinder) After the wound disc-like structure is formed to the outer diameter, the disc-like structure is housed in the outer cylinder and then integrated through an adhesive process and the like. At the final stage of this manufacturing process, both end faces of the disc-like structure are impregnated with epoxy resin, liquid glass, etc. to a certain dimension depth and then solidified to secure the surface hardness so that the surface becomes smooth. It is molded. Further, the ventilation function of the desiccant rotor is secured by the honeycomb-shaped ventilation holes formed by winding the cardboard structure.

Desiccant rotors used for small-sized dehumidifiers for home use are completed with the disk-like structure firmly fixed in the outer cylinder because special roundness is not required. In the desiccant rotor of the present invention, the smoothness of both end faces of the desiccant rotor and the roundness of the rotor outer cylinder are required in order to secure the sealing performance.
For this reason, the inner cylinder and the rotor outer cylinder which form a rotating shaft are connected by welding a plurality of radial flat spokes. As a result, the disk-like structure is divided into a fan-like shape composed of radial flat plate spokes and inner and outer cylinders, and after being fitted (in the form of just Baumkuchen divided radially), the inner cylinder and sector are divided. Integration is performed by bonding the disk-shaped structure and the outer cylinder.

  As described above, the disc-like structure fitted (divided) into the fan-shaped portion composed of the radial flat plate spokes and the inner and outer cylinders is bonded to the frame, but the expansion and contraction accompanying absorption and desorption of the hygroscopic agent Of the laminated surface and adhesion between the flat plate spoke and the inner and outer cylinder due to adhesion deterioration of the corrugated board structure laminated for long term use and adhesion deterioration between the radial flat plate spoke and the inner and outer cylinder etc. Accidents such as exfoliation and deformation accompanying them have been reported.

Rotor Catalog (Advanced Rotor Technology: Munters)

  Non-Patent Document 1 states that the basic structure has not changed since the invention of the desiccant rotor by Swedish scientist Carl Munters over 60 years ago. That is, the shape and strength of the desiccant rotor are secured by the inner cylinder, the outer cylinder, and the flat plate spokes connecting the two concentrically, and a disk-like structure divided into fan-shaped spaces formed by these strength members The body is fitted to form a desiccant rotor.

So far, mineral hygroscopic agents such as silica gel are kneaded with ceramic (clay) to form a sheet-like cardboard structure, which is wound into a disc-like structure and then fired to solidify and form. Was common.
In this case, since cracking and deformation occur in the firing process, after removing these defects, as described above, the fan-shaped space formed by the inner cylinder, the outer cylinder, and the flat plate spokes connecting both concentrically. The disc-like structure is divided and fitted so as to conform to the above.
This manufacturing method is also essential for securing the rotor strength for holding the disc-like structure weight for using the ceramic.

  In recent years, it has become common to use a desiccant structure typified by a polymeric moisture absorbent, supported on a sheet of paper or the like to produce a cardboard structure or a disc-like structure.

  In the case of a disc-like structure using a chemical-based moisture absorbent, no firing step is necessary, there are no causes for cracking or deformation, and it is lightweight, but in order to make the inner and outer cylinders concentric, the inner and outer cylinders A technique is used in which is connected by flat spokes. As a result, also in the desiccant rotor using a chemical-based hygroscopic agent, a disk-like structure formed by winding a cardboard structure is divided and fitted into a fan-shaped frame.

  In the case of a disk-shaped structure using a chemical type moisture absorbent divided into a fan-like shape, the separation between the cardboard structures caused by the expansion and contraction of the fan-shaped structure accompanied by moisture absorption and desorption, the inner cylinder, the outer cylinder, or the flat plate Accidents such as the generation of a gap due to the separation of the bonding surface with the spokes and the failure of the seal due to the deformation of the divided disk-like structure have occurred.

  The main object of the present invention is to provide a desiccant rotor which improves the method of manufacturing a desiccant rotor using a chemical-based hygroscopic agent and can prevent peeling and deformation of the disc-like structure even in long-term use. .

According to the present invention, it is a four-layer structure consisting of an inner cylinder, a disc-like structure, a sponge sheet structure, and an outer cylinder, and the disk-like structure is a sheet carrying a hygroscopic agent and a sheet thereof. A corrugated cardboard structure formed by joining processed corrugated sheets into a cardboard shape is formed by concentrically winding around the inner cylinder, and the corrugated structure wound on the inner cylinder has a predetermined diameter. After that, the sponge sheet structure having cushioning properties is wound around the outer periphery until it has a predetermined size, and after it is fitted and fixed in a close state to the outer cylinder, the inner cylinder, disc-like structure, sponge sheet structure, outer A plurality of radial through holes are provided in the radial direction of the cylinder, and a plurality of spokes are radially penetrated from the outer cylinder toward the inner cylinder, and then coupled to the inner cylinder and the outer cylinder to form an outer cylinder The axial center of the inner cylinder is one It is to adjust the perfect circular outer cylinder by the tension of the spokes, and molding the inner and outer tubes concentrically.

Since the corrugated board structure causes mutual adhesion during winding, moreover, since the disc-like structure and the sponge sheet structure maintain an integrally wound and laminated shape, a winding force always acts on the corrugated board structure. Moreover, since it is not necessary to divide the disc-like structure into a fan shape as in the prior art, the cardboard structure is fixed by the winding force even in the case of deformation such as expansion and contraction of the disc-like structure accompanying moisture absorption and release. Configuration. The structure between the spokes and the disc-like structure allows for radial slippage.
Therefore, spoke screw portions are provided at both ends of the spoke, and by adjusting the tightening force of the nut engaged with the spoke screw portions, the axial centers of the outer cylinder and the inner cylinder are made to coincide with each other. I try to maintain the circularity.

  In the desiccant rotor according to the present invention, an integral disk-like structure is formed by winding the cardboard structure on the inner cylinder as described above, and then the cushion material is installed on the outermost periphery and then the outer cylinder is mounted. Finally, a plurality of radial through holes are installed in the radial direction of the outer cylinder, the cushioning material, the disk-like structure, and the inner cylinder, and after inserting the spokes into the through holes, the inner cylinder, the outer cylinder and the spokes are Because of the coupling, the axial centers of the outer cylinder and the inner cylinder are made to coincide with each other, and the unification of the desiccant rotor is completed while accurately adjusting the true circle shape of the outer cylinder.

  As a result, there is no need to divide the disc-like structure, and the winding force always acts on the cardboard structure even if the volume increase / decrease due to moisture absorption / desorption of water vapor is repeated. Disc structure), deformation due to peeling, deformation due to peeling, or deformation due to peeling of an inner cylinder, an outer cylinder, or a disc-like structure divided into flat plate spokes and fan-like deformation or detachment , And the generation of gaps, etc.

  Further, in the desiccant rotor according to the present invention, since the spokes having a diameter of 5 mm or less are radially installed and the inner cylinder and the outer cylinder are connected by the spoke screw structure, tension always acts between the outer cylinder and the inner cylinder. Adjustment of the roundness of the outer cylinder and the coaxiality of the inner and outer cylinders, and because slippage between the spokes and the disc-like structure or the sponge sheet structure is permitted, Accordingly, the deformation of the disc-like structure can also be configured to be absorbed simply by the sponge sheet structure.

  Further, in the desiccant rotor according to the present invention, since a plurality of spokes each having a diameter of 5 mm or less are installed in the radial direction in the same plane in the axial direction, it is possible to minimize the effect of closing the vent.

  Further, in the desiccant rotor according to the present invention, after the cardboard structure is wound to a predetermined diameter, the outer peripheral portion is taped with a resilient material such as a sponge sheet and then an adhesive is applied to the outer peripheral portion. As a result, the shape of the disc-like structure is stabilized, and adhesion to the outer cylinder and stress relaxation with respect to expansion and contraction of the disc-like structure are possible.

  Further, in the desiccant rotor according to the present invention, after the inner cylinder, the disk-like structure, the sponge sheet on the outer peripheral portion thereof, and the outer cylinder are combined and fixed, the pores with a diameter of about 5 mm from the outer cylinder side After drilling at a right angle toward the core), insert a spoke of 5 mm or less in diameter from the outer cylinder side into the hole, screw fix the tip of the spoke on the inner peripheral side of the inner cylinder, and then Similarly, since the tip end of the spoke and the outer cylinder are screw-fixed even on the outer periphery, it becomes possible to fix the inner cylinder and the outer cylinder concentrically without dividing the disc-like structure.

  Further, in the desiccant rotor according to the present invention, since the inner cylinder and the outer cylinder are connected by a plurality of spokes, the tension of the spoke can be implemented by adjusting the fixing screw, so the roundness of the outer cylinder It became possible to connect the inner cylinder and the outer cylinder concentrically and firmly.

  Further, in the desiccant rotor according to the present invention, since the plurality of spokes for fixing the inner cylinder and the outer cylinder are installed at a plurality of locations at predetermined intervals in the axial direction, the plurality of spokes cross substantially the same ventilation hole. As a result, spokes can be installed to minimize the loss of the ventilation function.

  As described above, in the desiccant rotor according to the present invention, it is not necessary to divide the disk-like structure and the flat plate spokes having a thickness of about several mm connecting the inner cylinder and the outer cylinder, which are conventionally required in the rotor. That is, the disk-like structure in a wound state is fixed between the inner cylinder and the outer cylinder, and the inner cylinder, the disk-like structure, and the outer cylinder are integrally connected by a large number of radial spokes. As a result, the delamination between layers seen in the fan-shaped disc-like structure is less likely to occur, and the manufacturing process of the desiccant rotor is simplified, enabling cost reduction and long-term functional maintenance of the desiccant rotor. The

  Further, in the desiccant rotor according to the present invention, when winding the cardboard structure, the mutual adhesion function of the cardboard structure is exhibited, and the desiccant rotor is formed without the tension due to the winding being released over a long period of time Ru. In addition, since the winding of the cardboard structure is mechanically performed, the surfaces of the ventilation surfaces at both ends of the disc-like structure can be uniformly formed without unevenness. In addition, the sponge sheet structure disposed at the outermost periphery of the disk-like structure absorbs deformation, and the disk-like structure is also absorbed against deformation due to radial expansion and contraction of the desiccant rotor accompanying the adsorption and desorption of water vapor. Since sliding is allowed also between the and the spokes, no deformation or destruction of the adhesive surface occurs even in long-term use.

It is a block diagram of a desiccant rotor (10) concerning the present invention. A cardboard structure (2) is wound around the outside of the inner cylinder (1) to form a disc-like structure (3), and a sponge sheet structure (4) is wound around the outermost periphery thereof. , It is fitted in the air tight state to the outer cylinder (5). Then, the outer cylinder (5), the sponge sheet structure (4), the disc-like structure (3), and the inner cylinder (1) are connected by the spokes (6). It is a structure sectional view of a desiccant rotor (10) concerning the present invention. A spoke (6) which penetrates a plurality of through holes (7) which penetrate the inner cylinder (1), the disk-like structure (3) and the outer cylinder (5) in the radial direction (radially), and both ends of the spoke (6) Screw of the spoke (6) which penetrates through the through holes (7-1) and (7-5) of the inner cylinder (1) and the outer cylinder (5). The relationship between the washer (8) coupled to the part (6-1) and the nut (9) is shown.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

  As shown in FIG. 1, in the desiccant rotor (10), a cardboard structure (2) is wound around the outside of an inner cylinder (cylindrical body) (1) to form a disc-like structure (3). The sponge sheet structure (4) is wound around the outermost periphery and fitted in a state of being in close contact with the outer cylinder (5). Then, after the pore processing is performed in the radial direction from the outside of the outer cylinder (5) to the inner cylinder (1), as shown in FIG. 2, the through holes (7 from the outer cylinder (5) side) The spokes (6) are inserted toward the inner cylinder (1) along the). After that, the washer (8) and the nut (9) are engaged with the spoke screw portions (6-1) processed at both ends of the spoke (6).

  Thus, after the plurality of spokes (6) are radially installed in the inner cylinder (1), the disc-like structure (3), the sponge sheet structure (4), and the outer cylinder (5), The axial center of the outer cylinder (5) and the inner cylinder (1) is adjusted by adjusting the tightening force of the nut (9) engaged with the spoke screw portion (6-1) provided at both ends of (6) Match and roundness of the outer cylinder (5) is formed.

  In Example 1, in the desiccant rotor (10), the axial length of the inner cylinder (1) is a sponge sheet integrally formed with the discoid structure (3) or the discoid structure (3). The integrated desiccant rotor (10) is longer than the axial length of the structure (4), and the axial length of the disc-like structure (3) is longer than the axial length of the outer cylinder (5). The sponge sheet structure (4) formed integrally with the disc-like structure (3) or the disc-like structure (3) at both end faces thereof is only a predetermined length from the outer cylinder (5) It will be exposed. As a result, the end face of the disk-like structure (3) or the sponge sheet structure (4) integrally formed with the disk-like structure (3), which is indispensable in the manufacturing process of the desiccant rotor, is epoxy resin, liquid glass, etc. It is possible to finish it in the same plane as the outer cylinder (5) at the stage where the solidification by the impregnation of and the smooth processing of the surface after that are applied.

  In Example 1, as shown in FIG. 2, a plurality of spokes (6) connecting the inner cylinder (1), the disc-like structure (3), the sponge sheet structure (4) and the outer cylinder (5). The structure is such that one or more of them are installed in the same plane of radiation perpendicular to the direction of the desiccant rotor central axis, so that a large desiccant rotor in which a large number of spokes (6) are installed. Also in the above, it is possible to minimize the reduction of the ventilation area by the spokes (6).

  As described above, in Example 1 of the desiccant rotor according to the present invention, a sheet made of paper, a glass fiber sheet, or the like supported by a chemical-based hygroscopic agent such as a polymeric sorbent is processed into a cardboard shape. Since a cardboard structure is manufactured and wound to form a disc-like structure as shown in FIG. 2, a volume change of the disc-like structure occurs with absorption and desorption of water vapor with passing air. Even in the case of the wound structure, delamination is prevented.

DESCRIPTION OF SYMBOLS 1 inner cylinder 2 corrugated structure 3 disk-shaped structure 4 sponge sheet structure 5 outer cylinder 6 spoke 6-1 spoke screw part 7 through hole 7-1 inner cylinder through hole 7-5 outer cylinder through hole 8 washer 9 Nut 10 desiccant rotor

Claims (2)

A four-layer structure consisting of an inner cylinder, a disc-like structure, a sponge sheet structure, and an outer cylinder,
The disc-like structure is formed by concentrically winding a corrugated board formed by joining a sheet carrying a hygroscopic agent and a corrugated sheet obtained by corrugating the sheet into a corrugated board shape around the inner cylinder,
A sponge sheet structure formed by winding a sponge sheet is provided on an outer peripheral portion of the disc-like structure, and the outer cylinder has an inner diameter which allows radial slippage to the outer diameter of the sponge sheet structure. Provide
After installing a plurality of radial through holes in the radial direction of the inner cylinder, the disc-like structure, the sponge sheet structure, and the outer cylinder, and penetrating the plurality of spokes radially from the outer cylinder toward the inner cylinder, The inner cylinder and the outer cylinder are combined to make the axial centers of the outer cylinder and the inner cylinder coincide with each other to adjust the true circle shape of the outer cylinder, and the outer cylinder, the disc-like structure, and the sponge sheet are removed. A method of manufacturing a desiccant rotor, comprising: adhering to a cylinder concentrically. Spoke screw portion is applied to both ends of the spoke, by adjusting the tightening force of the nut engaged with the spokes threaded section, to match the axial center of the outer cylinder and the inner cylinder, and the roundness of the outer cylinder The method of manufacturing a desiccant rotor according to claim 1, wherein the method comprises:

Images