KR100675801B1 - An apparatus to remove or humidity moisture - Google Patents

Abstract

In the dehumidifying apparatus having a rotor, the dehumidifying apparatus for preventing the wear of the rotor while securing the airtight required for the rotor, wherein the dehumidifying portion 30 of the dehumidifying apparatus has a rotor 5 in the case 2. It is housed rotatably. The rotor shaft 15 is axially supported by bearings 34 and 36 fixed to the case 2, and a predetermined gap is formed between the outer periphery of the rotor 5 and the case 2. The humidification part 30 is formed with the opening diameters of the intake openings 10 and 11 and the exhaust openings 12 and 13 to intake and exhaust air smaller than the diameter of the rotor 5. Further, at the inner edge side of the exhaust ports 12 and 13 of the case 2, a protrusion cover 38 is provided on the inner surface side to surround the protrusion 37 on the rotor 5 side with a predetermined gap.

Description

An apparatus to remove or humidity moisture

1 is a cross-sectional view showing the configuration of the moisture humidifying unit of the moisture humidifying apparatus according to the embodiment of the present invention,

2 is a plan view of the moisture humidifying part,

3 is a cross-sectional view showing the configuration of the dehumidifying apparatus;

4 is an enlarged cross-sectional view showing the arrangement of the motor and the rotor of the dehumidifying apparatus;

FIG. 5 is a cross-sectional view taken along line AA of FIG. 4.

**** Description of the symbols for the main parts of the drawings ****

1 humidification unit

2 cases

5 rotor

10, 11 intake

12, 13 exhaust vent

15 Rotor Shaft

22, 39 euros (gap)

37 overhang

38 protrusion cover

The present invention relates to an adsorption type dehumidifying apparatus.

As a means for dehumidifying air, the dry dehumidification apparatus which adsorbs moisture in air to desiccant (hygroscopic material), dehumidifies, or dehumidifies moisture from desiccant, and humidifies air is known. Desiccant is supported on the columnar honeycomb rotor, and by rotating the rotor, the part of the rotor adsorbs moisture in the air, and the adsorbed moisture is desorbed from another part to humidify the other air. Some types of dehumidifying devices of this type are configured by sandwiching both end faces of the rotor into a pair of chambers (see Japanese Patent Laid-Open No. 2004-57994). The chambers are partitioned into adsorption zones and desorption zones provided with air vents and the chambers are bolted with pressure to the rotor at a predetermined pressure to reduce air leakage between the chamber and the rotor. In the use of such a dehumidifying apparatus, the rotor is rotated in the axial direction by belt driving, and air is introduced from the air port of one chamber and passed through the rotor to perform humidification or dehumidification, and then discharged through the other chamber.

However, in the case of the conventional dehumidifying apparatus, since the friction between the rotor and the chamber is increased, a large torque is required when rotating the rotor, which causes a large motor to rotate the rotor. In addition, when the rotor is made of inorganic fiber paper, it is easy to consume parts such as the rotor being cut, and the cross section of the rotor had to be strengthened to prevent this.

The present invention has been made in view of the above problems, and its main object is to prevent wear of the rotor while preventing air leakage from the rotor.

In order to solve the above problems, the present invention includes a case provided with an air inlet and an exhaust port for flowing air, and a rotor having a hygroscopic material rotatably housed in the case and capable of adsorbing or desorbing water from the air. The rotor has a surface perpendicular to the axis of rotation opposite to each of the intake port and the exhaust port, and a gap is formed between the rotor and the case, and the outer diameter of the rotor is larger than the opening diameter of each of the intake port and the exhaust port. The rotating shaft of the rotor has stepped portions at both ends, and at least one stepped portion of the stepped portions at both ends supports the rotor such that the gap is formed between the rotor and the case by contacting the inner surface of the case. To provide a dehumidifying device.

In this humidification apparatus, the rotor is accommodated in the case and the air introduced through the intake port formed in the case flows through the inside of the rotor to adsorb moisture to the humidity control member or absorbs moisture desorbed to the humidity control member and is discharged through the exhaust port. do. The outer periphery of the case and the rotor are not in contact but the outer diameter of the rotor is larger than the opening diameter of the inlet and exhaust ports, so that the flow path resistance of the gap is large and the amount of air flowing between the rotor and the case is very small.

In addition, the rotor rotation shaft is characterized in that the shaft is supported by the case.

In this way, the rotation of the rotor is stabilized by supporting the rotor rotating shaft in the case. Thereby, the clearance gap between a rotor outer peripheral part and a case can be narrowed.

In addition, the rotary shaft of the drive means for rotating the rotor and the rotary shaft of the rotor is characterized in that the rotation transmission coupled to the state having a clearance in each of the axial direction and the direction orthogonal to the axis.

As a result, the rotating shafts of the driving means are sandwiched with each other to the extent that the rotational transmission is possible while having a clearance with respect to the rotor rotating shaft. Therefore, even if the axes of the two rotating shafts are displaced, no excessive force is applied to these rotating shafts. . In addition, since the rotating shafts are not directly connected to each other, the weight of the rotor is not directly caught by the driving means.

In addition, the gap between the outer peripheral portion of the rotor and the case is set such that the flow path resistance thereof becomes larger than the flow path resistance of the rotor, thereby forming an airtight structure between the rotor and the case.

In this way, by narrowing the gap between the outer circumferential portion of the rotor and the case, the flow path resistance between the outer circumferential portion of the rotor and the case is increased, thereby forming a hermetic structure, so that most of the air introduced from the intake port can flow through the rotor.

In addition, an annular projection projecting in the radial direction is provided on the outer circumference of the rotor cross section facing the intake port or the exhaust port, and a projection cover covering the projection with a gap between the projection is provided in the case. It is done.

The protrusion and the protrusion cover further increase the flow path resistance of the air flowing from the outer circumference of the rotor into the case, thereby suppressing air leakage.

Moreover, the said airtight structure is formed in the downward side of the gravity direction, or downstream of the air which flows through the said rotor. It is characterized by the above-mentioned.

Thus, the airtight structure is formed below the gravity direction or downstream of air, and the force acting to compress the rotor by gravity or the flow of air can act in the direction of decreasing the gap, thereby improving the airtightness.

Best Mode for Carrying Out the Invention The best mode for carrying out the invention will be described in detail with reference to the drawings. The dehumidifying device according to the first embodiment includes the dehumidifying part 1 as shown in FIGS. 1 and 2. The dehumidifying part 1 dehumidifies or humidifies the air supplied by a duct or a fan (not shown), and has an almost rectangular parallelepiped hollow case 2 and an upper surface portion 3 and a lower surface portion of the case 2. (4) In each center, the holes 6 and 7 which support the rotor 5 axially are provided coaxially. Moreover, the upper surface part 3 is provided with a pair of inlet ports 10 and 11. The inlets 10 and 11 are formed by leaving a part of the annular opening and are arranged on the concentric circles of the hole 6. Similarly, the lower surface part 4 is provided with a pair of exhaust ports 12 and 13. These exhaust ports 12 and 13 have the same shape and arrangement as the inlet ports 10 and 11 on the upper surface portion 3 side.

The rotor 5 has the rotor shaft 15 inserted into the holes 6 and 7 of the case 2. In the rotor shaft 15, the diameter of the upper end portion 16 inserted into the hole 6 and the lower end portion 17 inserted into the hole 7 is reduced, and the end face 18 of the stepped portion on the lower end portion 17 side has a case. It is in contact with the inner surface of the lower surface part 4 of (2). In contrast, a gap is formed between the end face 19 of the stepped portion on the upper end 16 side and the upper surface portion 3 of the case 2. The rotor shaft 15 is made of metal or hard resin. An annular rotor body 20 is fixed to the outer circumference of the rotor shaft 15 except for the upper end 16 and the lower end 17. The upper surface of the rotor body 20 has a surface substantially coincident with the end face 19 on the upper end portion 16 side of the rotor shaft 15, and the lower surface of the rotor body 20 has a lower end portion 17 of the rotor shaft 15. It is located slightly above the end face 18 of the side. The rotor body 20 is manufactured by, for example, forming a honeycomb structure using inorganic fiber paper and carrying a desiccant such as silica gel or zeolite on it. In addition, the cover 21 is fixed to the outer peripheral surface of the rotor body 20. The cover 21 is made of metal or resin. The rotor 5 is housed in the case 2 and its outer diameter is slightly larger than the outer diameters of the pair of inlets 10 and 11 and the pair of exhaust ports 12 and 13 of the case 2. Moreover, as rotation drive means which rotates the rotor 5, what connected the motor (not shown) to the upper end part 16 of the rotor shaft 15 with an endless belt etc. is mentioned, for example. In the rotor 5 which is rotated by the rotation drive means, the region between the intake port 10 and the exhaust port 12 becomes the adsorption region 20A, and the region between the intake port 11 and the exhaust port 13 is the detachable region 20B. )

The gap between the case 2 and the rotor 5 is formed so that the flow path area is smallest between the outer peripheral portion of the lower end side of the rotor 5 and the lower surface portion 4 of the case 2. The air flowing through the formed flow path 22 is suppressed to about 10% when the amount of air flowing through the rotor 5 is 100%. As an example of such a humidification part 1, the outer diameter of the rotor 5 is 5 mm larger than the outer diameter when a pair of exhaust ports 12 and 13 are assumed to be a circle, and faces the lower surface of the rotor 5 to face the case 2. The distance between the lower surface part 4 of) is about 1-2 mm.

Next, the operation of the dehumidifying device will be described.

First, the rotor 5 is rotated about the rotor shaft 15, a dehumidifying air is supplied to the intake port 10 using a duct or a fan (not shown), and humidification air is supplied to the intake port 11. The air supplied through the intake port 10 mainly flows through the adsorption region 20A of the rotor body 20 so that moisture in the air is adsorbed by the desiccant. Moisture adsorbed and the air having relatively low humidity is blown from the rotor body 20 through an exhaust port 12 through an unshown duct connected to the exhaust port 12. At this time, as the rotor 5 rotates, the portion where moisture is adsorbed moves between the inlet port 11 and the exhaust port 13. The humidifying air supplied to the rotor 5 via the intake port 11 mainly flows through the desorption region 20B of the rotor main body 20. Normally, the humidifying air is heated by a heater (not shown) to easily absorb moisture, so that the moisture adsorbed on the desiccant is desorbed and mixed with the air to become wet air, and the wet air is discharged from the rotor 5 ( 13) to the duct not shown. On the other hand, when the room is dehumidified, it flows through the adsorption zone 20A to supply the air after the moisture is adsorbed to the room, and when the room is humidified, the air after absorbing the water is flowed through the desorption zone 20B to the room. Supply.

In the present embodiment, the rotor shaft 15 is rotatably supported by the case 2 and the rotor body 20 is supported in a non-contact state with the case 2, so that the rotation of the rotor 5 is stabilized. Wear of the rotor body 20 by rotation is prevented. In addition, since the contact resistance between the rotor 5 and the case 2 can be made smaller than the conventional one by axially supporting the rotor 5 in the case 2, the motor or the like as the rotation driving means can be miniaturized. Therefore, the device can be miniaturized and reduced in price. Here, by precisely positioning the rotor shaft 15 against the case 2, the area of the flow path 22 between the outer circumference of the rotor 5 and the case 2 can be formed small and precisely. By the airtight structure formed in this way, the rotor 5 and the case 2 can ensure high airtightness, maintaining a non-contact state. Therefore, the amount of air which does not flow through the rotor body 20 in the air flowing out from the intake ports 10 and 11 through the exhaust ports 12 and 13 can be greatly reduced, so that high dehumidification efficiency and humidification efficiency can be obtained. In addition, it is possible to precisely set the flow path resistance of the flow path 22 by bringing the rotor shaft 15 into contact with the case 2 on the downstream side of the air flow and below the gravity direction.

Next, a second embodiment will be described with reference to FIGS. 3 to 5. In addition, the same code | symbol is attached | subjected to the same component as 1st Embodiment, and the description is abbreviate | omitted.

The dehumidifying device according to the present embodiment has a dehumidifying part 30 as shown in FIG. 3. In the humidifying part 30, the rotor 5 is rotatably housed in the case 2. The holes 31 and 32 formed in the center of each of the upper and lower portions 3 and 4 of the case 2 are larger than the diameters of the rotor shaft 15 and the rotor shaft 15 and the case 2. Is in a non-contact state. The support part 33 is being fixed to the case 2 so that the hole 31 may be covered, and the support part 33 is equipped with the bearing 34, such as a bearing, and the upper end part of the rotor shaft 15 in this bearing 34 is provided. The shaft 16 is rotatably supported. Moreover, the bearing 36 is similarly provided in the support part 35 which covers the hole 32, and the lower end part 17 of the rotor shaft 15 is axially supported by this bearing 36. As shown in FIG. The end face 18 of the stepped portion of the rotor shaft 15 is in contact with the upper surface of the bearing 36.

Further, at the lower end of the cover 21 of the rotor 5, the protrusion 37 is protruded in an annular direction toward the radially outer side of the rotor body 20 and along the outer circumferential surface of the cover 21. In addition, the lower surface portion 4 of the case 2 is provided with a projection cover 38 covering the projection 37. The protrusion cover 38 extends in parallel with the rotor 5 on the inner surface of the lower surface portion 4 and is bent inward in the horizontal direction toward the rotor body 20, and between the protrusion 37 and the protrusion cover 38. A predetermined gap is formed. The flow path 39 formed by the lower surface portion 4 of the case 2, the protrusion cover 38, the protrusion 37 of the rotor 5, and the cover 21 is compared with the flow resistance of the rotor body 20. Has a sufficiently large flow path resistance.

Here, an example of the case of installing the rotation drive means of the rotor 5 in the humidifying unit 30 will be described with reference to FIG.

As shown in FIG. 4, the motor 40 is fixed to the support part 33 on the upper surface part 3 side of the case 2. The through hole 33A is formed in the support part 33 so as to coincide with the axis line of the rotor shaft 15, and the motor shaft 41 is inserted therein. A gear 42 is provided at the tip end of the motor shaft 41. The gear 42 is inserted into a connection hole 43 recessed in the upper end 16 of the rotor shaft 15. As shown in FIG. 5, the connecting hole 43 has a quadrangular shape in plan view, and the gear 42 has a quadrangular shape slightly smaller than the connecting hole 43. As described above, the gear 42 and the connection hole 43 are fitted to each other with a clearance therebetween so that the power of the motor 40 can be transmitted to the rotor shaft 15. However, since the two members are not directly connected, the rotor shaft 15 The axis of and the axis of the motor shaft 41 need not necessarily coincide.

Next, the operation of the present embodiment will be described. First, when the motor 40 is rotated, the motor shaft 41 rotates the gear 42. Since the gear 42 is fitted with a clearance between the rotor shaft 15, the rotation of the motor 40 is transmitted to the rotor shaft 15, and the rotor 5 is rotated in the case 2. The process of humidifying air is the same as that of embodiment mentioned above. That is, air introduced through the intake port 10 flows through the adsorption region 20A of the rotor body 20 to be dehumidified and discharged through the exhaust port 12. On the other hand, the air introduced through the inlet 11 is humidified by passing through the desorption region 20B of the rotor body 20 and discharged through the exhaust port 13. Here, the amount of air flowing between the rotor 5 and the case 2 is suppressed by the flow path 39 formed by the protrusion 37 and the protrusion cover 38. The flow path resistance of the flow path 39 is sufficiently large as compared with the flow path resistance of the rotor body 20, which can further suppress the amount of air flowing through the flow path 39.

According to this embodiment, since the rotor 5 is supported by the bearings 34 and 36, the rotation of the rotor 5 can be stabilized. In this way, by axially supporting the rotor 5 and providing the protrusion 37 and the protrusion cover 38, the gap between the outer periphery of the rotor 5 and the case 2 can be made small, so that the rotor 5 and the case ( The airtightness of 2) can be improved. Therefore, the amount of air which does not flow through the main body 20 in the air flowing out from the intake ports 10 and 11 through the exhaust ports 12 and 13 can be greatly reduced, so that high dehumidification efficiency and humidification efficiency can be obtained.

In addition, since the gear 42 fixed to the motor shaft 41 and the rotor shaft 15 are fitted with a gap therebetween, there is no need to consider the axial shift between the motor 40 and the rotor 5. When there is an axial deviation, the torque required for the rotation of the rotor 5 increases, but in the case of the humidification part 30, such a torque increase can be prevented, so that the small motor 40 can be used as a driving source. The size and price of the product can be reduced. At this time, since the rotor shaft 15 itself is supported by bearings 34 and 36 on the case 2 side, the rotation of the rotor 5 does not occur.

Further, since the motor 40 is disposed on the upstream side of the air flow and on the upper side in the gravity direction, the weight of the rotor shaft 15 is not caught by the motor 40, so that a small motor can be used.

In addition, this invention is not limited to each said embodiment, It can apply widely.

For example, the structure which does not provide only the protrusion part 37 in the rotor 5, but does not provide the protrusion part cover 38 in the case 2 is also possible. Moreover, in 1st Embodiment, it is also possible to provide the protrusion part 37, or to provide the protrusion part 37 and the protrusion part cover 38. As shown in FIG.

It is also possible to install the motor 40 on the downstream side of the air and below the gravity direction. Even in this case, the rotor shaft 15 is supported by the bearings 34 and 36 without directly contacting the motor 40 and its motor shaft 41.

In addition, the up-down direction in each embodiment is not limited to the above, It is also possible to provide the moisture damp parts 1 and 30 in a horizontal direction. In this case, the rotor shaft 15 is preferably configured to abut the case 2 or the bearing 36 on the downstream side of the air flow.

In addition, the motor shaft 41 and the gear 42 may be integrally formed. In addition, the shape of the gear 42 and the shape of the rotor shaft 15 are not limited to the embodiment, but other forms are possible. For example, a spline type having a splined convex-concave on the outer circumference of the gear 42 and fitted with a clearance therebetween in the inner circumference of the connecting hole 43 of the rotor shaft 15 has a spline type larger than the protruding line. It is also possible to form irregularities.

According to the present invention, the rotation of the rotor can be stabilized by rotatably accommodating the rotor in the case, whereby the gap between the outer peripheral portion of the rotor and the case can be narrowed. Therefore, the amount of air leaking from the outer periphery of the rotor to the case can be greatly reduced, so that high humidification performance and high dehumidification ability can be obtained. In addition, when the rotational axis of the drive means and the rotor rotational axis are coupled to each other with a clearance there is no need to increase the precision of the parts in order to prevent axial displacement between the rotational shafts, and furthermore, the torque during rotation of the rotor generated due to the shaft displacement. The increase can be prevented and the driving means can be miniaturized. In this case, since the weight of the rotor is not caught by the driving means, the configuration of the driving means can be simplified. Providing protrusions in the rotor also increases flow resistance, which can reduce air leakage. In addition, when the protrusion cover is provided to cover the protrusion, the flow resistance may be increased to further reduce air leakage. If the airtight structure is formed below the gravity direction or downstream of the air flow, the flow path resistance between the outer periphery of the rotor and the case can be further increased to further reduce air leakage.

Claims (6)

And a rotor provided with an intake port and an exhaust port through which air flows, and a hygroscopic material rotatably received in the case and capable of adsorbing or desorbing water from the air, wherein the rotor has a surface perpendicular to the rotation axis thereof. A gap is formed between each of the intake port and the exhaust port, and a gap is formed between the rotor and the case, and the outer diameter of the rotor is larger than the opening diameter of each of the intake port and the exhaust port, and the rotating shaft of the rotor has stepped portions at both ends. And supporting the rotor such that at least one of the stepped portions at both ends contacts the inner surface of the case so that the gap is formed between the rotor and the case. delete The method of claim 1, And a rotation axis of the drive means for rotating the rotor and the rotation axis of the rotor are rotatably coupled so as to have a clearance in each of the axial direction and the direction orthogonal to the axis. The method according to claim 1 or 3, And a gap between the outer circumferential portion of the rotor and the case so that the flow path resistance thereof becomes larger than the flow path resistance of the rotor to form an airtight structure between the rotor and the case. The method of claim 4, wherein Humidification device characterized in that the outer periphery of the rotor cross section facing the inlet port or the exhaust port is provided with an annular projection projecting in the radial direction, and a projection cover covering the projection with a gap between the projection and the projection. . The method of claim 4, wherein The hermetic structure is formed below the gravity direction or downstream of the air flowing through the rotor.

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