JP2001246220A - Dehumidifier - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a dehumidifier, preventing the mixing of air in a regeneration route with air in a dehumidifying route to stably obtain dehumidifing capacity, at a low cost. SOLUTION: In the dehumidifier having a moisture absorbing route 12 for axially passing air in a room through a cylindrical moisture absorbing device 10 rotated in one direction to adsorb moisture in air and discharging dried air into the room and the regeneration route 17 for axially passing air heated with a heater 16 through the moisture absorbing device 10 to desorb moisture adsorbed with the moisture absorbing device 10, a partition plate 23 for preventing the leak of the air flowing through the regeneration route 17 to the moisture adsorbing route 12 and a partition closing plate 24 are provided to both end surfaces of the moisture absorbing device 10 so as to be adjacent thereto.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dehumidifier for dehumidifying a room by adsorbing / desorbing moisture by passing two paths of air in opposite directions through a rotatable moisture absorber. And a dehumidifier for preventing leakage and mixing of air in the two paths near a moisture absorber.

[0002]

2. Description of the Related Art Conventionally, as this type of dehumidifier, for example,
There is one disclosed in Japanese Utility Model Laid-Open No. 4-11515. In this dehumidifier, as shown in FIGS. 9 and 10, a cylindrical dehumidification rotor 102 having a large number of small through-holes 101 penetrated on both end surfaces is disposed in a casing 103 so as to be rotatable.
Opening on both sides of the casing 103, a processing zone 106 and a regeneration zone 107 of the dehumidifier are formed.

[0003] Fixing members 108 and 109 are attached to the inner surfaces of the peripheral edges 117 and 117b of the opening portions.
At 09, two sealing members 110a, 110b and 110c, 110d having flexibility and elasticity are attached by bolts 111 or other appropriate means. These two seal members 110 a and 110 b and 110 c and 110 d are curved in opposite directions to each other and press the end surface of the moisture absorbing rotor 102.

In this configuration, when there is a pressure difference between the humid air 104 passing through the humid rotor 102 and the regeneration air 105, for example, the humid air 104 is
When the pressure is higher than the pressure, the seal member 110c is pressed against the end face of the moisture absorbing rotor 102 by the differential pressure 118, and when the high-pressure side moisture-absorbing air 104 is higher pressure than the low-pressure side regeneration air 105, the sealing member 110c 110d is pressed against the end face of the moisture absorbing rotor 102 by the differential pressure 119, and it is possible to reliably prevent the high pressure side air from leaking into the low pressure side air and mixing the two airs.

[0005]

However, such a conventional dehumidifier has the following problems. Since the number of parts such as the sealing member and the bolts associated therewith increases, the assembly process of the dehumidifier becomes complicated, and the cost increases. Since the end face of the moisture absorbing rotor and the seal member are constantly rubbed by the pressing of the seal member, there is a possibility that the end face of the moisture absorbing rotor may be damaged or chipped by long-term use. Therefore, the life of the product is shortened and the quality is easily deteriorated. By the above-mentioned rubbing between the end face of the moisture absorbing rotor and the seal member,
The rotating moisture absorbing rotor receives resistance in the direction of rotation,
Since a high load is applied to the motor for rotating the moisture absorbing rotor, smooth rotation of the moisture absorbing rotor may be hindered. Therefore, in order to continuously obtain the predetermined rotation speed of the moisture absorbing rotor,
The output of the motor must be increased, which consumes extra power and is uneconomical.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and a low-cost dehumidifier capable of preventing the air in the regeneration path from being mixed with the air in the dehumidification path and obtaining a stable dehumidification ability. The purpose is to provide.

[0007]

In order to achieve the above-mentioned object, a dehumidifier according to the present invention adsorbs moisture in the air by passing room air axially into a cylindrical moisture absorber rotating in one direction. A dehumidification path having a moisture absorption path for exhausting the dried air into the room, and a regeneration path for removing air adsorbed on the moisture absorber by passing the air heated by the heater through the moisture absorber in the axial direction. On the machine,
A partition member for preventing air flowing through the regeneration path from leaking to the moisture absorption path side is provided adjacent to both end faces of the moisture absorber.

[0008] According to this configuration, the air flowing through the regeneration path is less likely to move toward the moisture absorption path at both end faces of the moisture absorber by the partition members provided adjacent to both end faces of the moisture absorber.

The moisture absorber has a moisture absorbing portion to which moisture contained in air flowing through the moisture absorbing path is adsorbed, and the moisture absorbing portion is moved to the regeneration path side by rotation of the moisture absorbing device, and is moved to the moisture absorbing portion. A regenerating section from which the adsorbed moisture is desorbed, while the partition member has a closed area set at a predetermined angular range around the rotation axis of the moisture absorber, and an opening in the closed area. And a passage opening formed to regulate the reproduction path.

[0010] According to this, due to the closed area of the partition member adjacent along the end face of the moisture absorber, the moving amount of air in the regeneration path to the moisture absorption path side is further reduced.

The closed area passes when the moisture absorbing section moves to the regenerating section by the rotation, and the first closed area passes when the regenerating section moves to the moisture absorbing section by the rotation. And a second closed area.

According to this, the air in the regeneration path is less likely to move toward the moisture absorption path due to the first and second closed areas of the partition member adjacent to the end face of the moisture absorber.

The area of the end face of the moisture absorber corresponding to the moisture absorbing portion is at least half the total area of the end face of the moisture absorber, so that the indoor air flowing through the moisture absorption path can be efficiently used. Moisture is recovered.

[0014] The angle of the first closed section may be in the range of 30 ° to 60 ° about the rotation axis of the moisture absorber.

On the other hand, it is preferable that the angle of the second closed section is in the range of 15 ° to 60 ° about the rotation axis of the moisture absorber.

Further, when the total area of the portion corresponding to the regeneration section, the first closed area and the second closed area on the end face of the moisture absorber is smaller than the area of the portion corresponding to the moisture absorption section, Good moisture absorption performance is continuously obtained.

In this case, the angle of the first closed section is 30 ° about the rotation axis of the moisture absorber, and the angle of the second closed area is 30 °.
The angle of the occlusion zone is set at 45 degrees around the rotation axis of the moisture absorber.
°, the best moisture absorption performance is continuously obtained from the dehumidifier.

[0018]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is an external perspective view of an example of a dehumidifier according to the present invention. FIG. 2 is a side sectional view of the dehumidifier. FIG. 3 is a schematic configuration diagram of the dehumidifier. In FIG. 2, the hatching of the section showing the cross section is shown only in the main part.

1 to 3, reference numeral 1 denotes a dehumidifier main body, 2
Is a suction port provided on the front surface of the main body 1 and formed of a plurality of slits, etc., 3 is an outlet from which air sucked from the suction port 2 is blown out, and 4 is an input operation for controlling the operation of the dehumidifier. The operation unit 5 is a handle for carrying the main body 1, 6 is a damper for opening or closing the outlet 3, and 7 is a duct branched from the upstream side of the outlet 3.

Reference numeral 10 denotes a moisture absorber filled with a moisture absorbing member which rotates while passing through the moisture absorbing portion 10a and the regenerating portion 10b and adsorbs and desorbs moisture in the air, and 14 denotes a blow molded product made of a translucent polypropylene resin. The condenser 18 is a condenser for passing indoor air through the condenser 14 via the condenser 14.
A dehumidifying fan for sending dehumidified air having moisture adsorbed to the moisture absorbent into the room; a heater 16 for heating the moisture absorber 10 passing through the moisture absorbing portion 10b to release moisture absorbed to the moisture absorbent; Guides the air heated by the heater 16 to the moisture absorber 10 passing through the regenerating unit 10b, and guides the high-humidity air desorbed from the moisture absorber into the condenser 14;
A regenerating fan for circulating air dehumidified by condensation of water in a regenerating path 12 to be described later.
Is a heat exchanger that recovers heat from dehumidified air that has passed through the moisture absorbing section 10a.

The moisture absorber 10 is provided on a band-shaped sheet base made of ceramics or the like, and has a height of 1 formed of a band-shaped flat sheet.
A corrugated sheet that has been corrugated to about 1.5 mm is adhered and integrated, and a single-sided wave formed body is wound around a cylindrical rotor impregnated with a hygroscopic material such as zeolite and dried. A large number of small through holes are formed in a honeycomb shape in the axial direction.

The condenser 14 and the heat exchanger 15 are blow-molded products made of a translucent polypropylene resin which has been subjected to antibacterial processing, and constitute a leak-free, lightweight condensed fluid passage pipe part. The inside is a horizontal tube that connects the upper part almost horizontally,
A horizontal pipe that connects the lower part substantially horizontally, two horizontal pipes that are connected substantially horizontally between the upper part and the lower part, and a large number of pipes that make a substantially vertical communication between these condensed fluid passage pipes in the substantially horizontal direction. Of the fluid to be condensed in a substantially vertical direction.

The heater 16 is a heater made of, for example, a nichrome wire, and is 495 W, 295 W or 220 W.
The output can be switched in accordance with W and the dehumidifying capacity of the dehumidifier, whereby the temperature of the air immediately after passing through the heater 16 is maintained in the range of 200 to 250 ° C.
For example, a sirocco fan can be used as the regenerating fan 13 and has a capacity of about 1800 rpm and a flow rate of about 0.1 m.

The moisture absorbing section 10a is an air passage for adsorbing the moisture of the indoor air to the moisture absorbing body (humidifier 10), and the regenerating section 10b heats the air in the regenerating path 12 by the heater 16 and heats the air. This is an air passage for desorbing moisture from the moisture absorber (hygroscopic device 10).

The dehumidifier includes a moisture absorbing passage 17 for passing moisture in the air into the moisture absorbing body 10 through the moisture absorbing section 10 passing through the moisture absorbing section 10a to exhaust the dehumidified air, and a moisture absorbing path passing through the regeneration section 10b. It has two paths, namely, a regeneration path 12 for removing moisture from the moisture absorbent by passing heated air through the vessel 10.

In the moisture absorption path 17, room air (for example, 27 ° C., 70%) sucked from the suction port 2 comes into contact with the surroundings of the condenser 14 to cool the same, and then passes through the moisture absorbing section 10a. , The moisture is deprived by the moisture absorber filled in the moisture absorber 10 to become dehumidified air. The dehumidified air is deprived of heat by the heat exchanger 15 when it comes into contact with the surroundings of the heat exchanger 15, and becomes dry air (about 45 ° C., 5% or less) having a relatively low temperature to form the main body 1. Air is exhausted from the outlet 3 or the duct 7. Reference numeral 20 denotes a filter for removing and collecting dust and the like contained in the room air.

On the other hand, in the regeneration path 12, when the air (about 35 ° C.) flowing from below the condenser 14 passes through the heated heat exchanger 15, the air is preheated by heat exchange. After being heated to 250 ° C., moisture is removed from the moisture absorbent in the moisture absorber 10 while passing through the regeneration unit 10 b to regenerate the moisture absorbent, and moisture is condensed in the condenser 14 cooled by the air in the moisture absorption path 17. . Water droplets generated by the condensation are guided to a water receiving tank 21 described later. The moisture absorbent in the moisture absorber 8 regenerated by passing through the regeneration unit 10b moves to the moisture absorption unit 10a by rotation in the direction of the arrow A, and exhibits the moisture absorption function again.

Since the moisture absorber 10 rotates slowly at about 30 revolutions / hour, most of the heat remaining in the moisture absorber 10 after the air heated by the heater 16 passes in the regeneration unit 10b. When the water is radiated from the rotating moisture absorber 10 and returned to the moisture absorbing part 10a, the temperature of the moisture absorber 10 itself is about 120 to 140 ° C. Then, since the air in the dehumidifying path 17 passes through that part (that is, the moisture absorbing part 10a), the dried air is warmed, but the heat exchanger 1
The heat is recovered at 5 and exhausted at a temperature 3 to 5 ° C. higher than the room air. The air flowing in the regeneration path 12 is preheated by the heat stored in the heat exchanger 15 in this manner.

By the way, in an apparatus for dehumidifying by using a compressor constituting a part of a refrigeration cycle like an air conditioner,
Since the amount of moisture in the air varies depending on the temperature, the dehumidifying ability decreases as the temperature decreases. On the other hand, in the dehumidifier according to the present invention, the moisture absorbing capacity of the moisture absorber 10 is
Since the temperature varies depending on the size and is hardly affected by the temperature, the dehumidifying ability is less reduced even when the temperature is lowered as compared with a device that dehumidifies using a compressor.

Reference numeral 21 denotes a water receiving tank provided in the dehumidifier body 1. The condensed water condensed in the condenser 14 flows into the water receiving tank 21 via the water inlet pipe 11, and is temporarily stored in the water receiving tank 21. When the condensed water is accumulated above a predetermined water level, the water level detecting means 9 displays the fact on the operation unit 4. At this time, the user opens the opening / closing lid 22 to take out the water receiving tank 21, discard the accumulated water, return the water receiving tank 21 to the inside of the main body 1 and close the opening / closing lid 22 to restart the dehumidifying operation. Can be. Note that the user may be notified by a warning sound that the condensed water has accumulated in the water receiving tank 21 in a predetermined amount or more.

FIG. 4 is an exploded perspective view of a part around the moisture absorber in the dehumidifier. On the back of the partition plate 23, an open box-shaped rib 23a of a size that can accommodate the moisture absorber 10 is provided.
(See FIG. 2) are integrally formed. On the other hand, the partition plate 23
On the front surface, a protruding portion 23b which forms a part of the reproduction path 12 (FIG. 2) and is slightly larger than a shape of a passage opening 25 of a partition closing plate 24 described later is integrally formed. The protruding portion 23b and the lower portion thereof respectively have a reproduction path 1
2 (FIG. 2) and a passage opening 27 of the moisture absorption path 17 (FIG. 2) are formed. The passage opening 26 is formed in a substantially circular shape, and a pipe (not shown) extending from the inlet of the condenser 14 is fitted into the passage opening 26. Therefore, the air flowing through the regeneration path 12 is introduced into the condenser 14 in a form concentrated at the passage opening 26.

The moisture absorber 10 is mounted by fitting one end of the shaft 19 of the moisture absorber 10 into the bearing 23c of the partition plate 23,
Further, the other end is fitted into the bearing portion 24a of the partition closing plate 24 and the bearing portion 28a of the heater box 28, and the partition closing plate 24 is fixed to a predetermined position of the rib 23a (FIG. 2) of the partition plate 23 with a screw or the like. . And the partition closing plate 24
The heater box 28 containing the heater 16 is fixed with screws or the like.

The partition closing plate 24 is formed with a passage opening 25 having a shape substantially equal to the substantially fan-shaped internal shape of the heater box 28. As described above, the partition plate 23 and the moisture absorber 1 are formed.
0, when the partition closing plate 24 and the heater box 28 are assembled, the air passage intermittently communicates from the inside of the heater box 28 to the inside of the condenser 14 with the moisture absorber 10 interposed therebetween, and regulates the regeneration path 12 (FIG. 3). Is configured. The positional relationship between these members is as shown in the rear sectional view of FIG.

Accordingly, the moisture absorbing portion 10 referred to in the present invention.
As shown in FIG. 6, a is a region formed in the axial direction of the moisture absorber 10 and is a portion corresponding to the outside of the partition closing plate 24. On the other hand, the regeneration unit 10b is a portion of the moisture absorber 10 A region formed in the axial direction, the passage opening 2 of the partition closing plate 24
It is a part corresponding to 5.

By the way, the moisture absorbing portion 10 on the end face of the moisture absorber 10
and the area of the passage opening 2 of the partition block board 24
It has been found that the area ratio of 5 has a considerable effect on the dehumidifying capacity. Further, in order to ensure smooth rotation of the moisture absorber 10, the end face of the moisture absorber 10 and the partition plate 23 are required.
Also, the gap between the partition and the closing plate 24 must be at least 1 mm.

The air in the regeneration path 12 is supplied to the regeneration fan 13
Since the air passes through the passage opening 25 of the partition closing plate 24 in a state where the pressure is higher than the surrounding atmosphere due to the blast of FIG. 3,
A part of this air is likely to leak through the gap with the partition closing plate 24 in the regeneration section 10b of the moisture absorber 10. On the other hand, the air in the reproduction path 12 after passing through the reproduction section 10b of the regenerator 10 has a considerably low pressure (0.1 mmH ₂ O or less), and also passes through the gap with the partition plate 23 from here. Air leaks easily. As a result, the regeneration efficiency of the moisture absorber 10 decreases,
Stable dehumidification ability cannot be obtained continuously.

Therefore, in order to minimize air leakage from the regeneration path 12 (FIG. 3) in the regeneration section 10b of the moisture absorber 10, as shown in FIG.
The left and right sides of the first portion which is passed when the moisture absorber 10a moves to the regeneration unit 10b by the rotation of the moisture absorber 10 in the direction of arrow A.
The rotation of the closed area 29 and the regeneration unit 10b causes the moisture absorption unit 1 to rotate.
The second closed area 30 that passes when moving to 0a is formed in a certain angle range around the rotation axis of the moisture absorber 10. As a result, a resistance is generated in the gap between the end face of the moisture absorber 10 and the first closed area 29 and the second closed area 30, and the air in the regeneration path 12 hardly leaks.

In the following description, for convenience, the reproduction path 12
The closed area formed on the upstream side of the portion corresponding to the moisture absorbing portion 10b of the moisture absorber 10 will be described. Needless to say, a similar closed area is formed on the downstream side of the moisture absorber 10 as well. The term “first closed area” or “second closed area” refers to both.

Now, suppose that the angle of the second closed area 30 is 60 °.
When the moisture absorption capacity (g / h) of the dehumidifier according to the present invention when the angle of the first closed area 29 was variously changed was examined, as shown in FIG. When the angle is in the range of 30 to 70 °, good moisture absorbing ability is obtained.

On the other hand, if the angle of the first closed area 29 is assumed to be 30
° and the angle of the second closed area 30 was variously changed, and the moisture absorption capacity (g / h) of the dehumidifier according to the present invention was examined. As shown in FIG.
When the angle is in the range of 30 to 70 °, a good moisture absorbing ability is obtained.

From the above test results, it is expected that the dehumidifying capacity will be maximized if the angle of the first closed area 29 is 45 ° and the angle of the second closed area 30 is 60 °. Is reduced to less than half of the total area of the end face of the moisture absorber 10, and the moisture absorbing ability is reduced, so that the maximum dehumidifying effect cannot be obtained.

Therefore, in consideration of the adsorption capacity of the moisture absorbing section 10a, the angle of the first closed section 29 is set to 30 ° and the angle of the second closed section is set to 45 °. The area was at least half or more of the total area of the end faces, and the best dehumidifying performance was obtained.

[0043]

As described above, according to the present invention, the leakage area of the air flowing through the regeneration path to the moisture absorption path side can be effectively prevented by the closed area of the partition member provided adjacent to both end faces of the rotating moisture absorber. And the stable dehumidifying ability can be continuously obtained from the dehumidifier. Further, since the moisture absorber rotates without contacting the partition member, it is possible to significantly reduce the life of the moisture absorber and the deterioration of performance due to long-term use of the dehumidifier. In addition, since the number of parts is smaller than in the conventional case, the cost can be reduced. Further, since no load is applied to the rotation of the moisture absorber, the rotation of the moisture absorber can be maintained smoothly at a low output, thus contributing to a reduction in running costs.

[Brief description of the drawings]

FIG. 1 is an external perspective view of an example of a dehumidifier according to the present invention.

FIG. 2 is a side sectional view of the dehumidifier.

FIG. 3 is a schematic configuration diagram of the dehumidifier.

FIG. 4 is an exploded perspective view of a part around a moisture absorber in the dehumidifier.

FIG. 5 is a rear sectional view of the dehumidifier.

FIG. 6 is an explanatory diagram of a main part in FIG. 5;

FIG. 7 is a diagram showing the relationship between the angle (area) of the first closed area and the moisture absorbing ability.

FIG. 8 is a diagram showing the relationship between the angle (area) of the second closed area and the moisture absorbing ability.

FIG. 9 is a cross-sectional view around a moisture absorber of a conventional dehumidifier.

FIG. 10 is a front view of a moisture absorber of the conventional dehumidifier.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Dehumidifier main body 2 Suction port 3 Blow-out port 4 Operation part 5 Handle 6 Damper 7 Duct hose 10 Moisture absorber 10a Moisture absorption part 10b Reproduction part 11 Water inlet pipe 12 Reproduction path 13 Regeneration fan 14 Condenser 15 Heat exchanger 16 Heater 17 Moisture path 18 Moisture absorption fan 20 Filter 21 Water receiving tank 22 Opening / closing lid 23 Partition plate 24 Partition closing plate 25, 26, 27 Passage opening 28 Heater box 29 First closed region 30 Second closed region

Continued on the front page (72) Inventor Mamoru Morikawa 22-22 Nagaikecho, Abeno-ku, Osaka City, Osaka F-term (reference) 4D052 AA08 BA02 CB02 DA03 DA06 DB01 FA03 GA04 GB00 HA03 HB02 HB06

Claims (8)

[Claims] 1. A moisture absorption path for exhausting dry air into a room by adsorbing moisture in the air from an axial direction through a room air into a cylindrical moisture absorber rotating in one direction,
A dehumidifier having a regeneration path for removing air adsorbed on the moisture absorber by passing air heated by a heater through the moisture absorber in the axial direction, wherein the air flowing through the regeneration path is on the moisture absorption path side A dehumidifier, wherein partition members for preventing leakage of the moisture are provided adjacent to both end faces of the moisture absorber. 2. The hygroscopic device according to claim 1, further comprising: a moisture absorbing portion to which moisture contained in air flowing through the moisture absorbing path is adsorbed; and a rotation of the moisture absorbing device, the moisture absorbing portion moves to the regeneration path side and the moisture absorbing portion is moved to the moisture absorbing portion. A regenerating section from which the adsorbed moisture is desorbed, while the partition member has a closed area set at a predetermined angular range around the rotation axis of the moisture absorber, and an opening in the closed area. The dehumidifier according to claim 1, further comprising a passage opening formed to regulate the regeneration path. 3. The closed area passes when the moisture absorbing section moves to the regenerating section by the rotation, and the first closed area passes when the regenerating section moves to the moisture absorbing section by the rotating. The dehumidifier according to claim 2, comprising a second closed area. 4. The moisture absorbing device according to claim 2, wherein an area of a portion corresponding to the moisture absorbing portion on an end surface of the moisture absorbing device is at least half or more of a total area of the end surface of the moisture absorbing device. Dehumidifier. 5. The dehumidifier according to claim 3, wherein an angle of the first closed section is in a range of 30 ° to 60 ° about a rotation axis of the moisture absorber. 6. The dehumidifying device according to claim 3, wherein an angle of the second closed section is in a range of 15 ° to 60 ° about a rotation axis of the moisture absorber. Machine. 7. The regeneration section on an end face of the moisture absorber,
The dehumidifier according to any one of claims 3 to 6, wherein a total area of a portion corresponding to the first closed region and the second closed region is smaller than an area of a portion corresponding to the moisture absorbing portion. . 8. The method according to claim 1, wherein the angle of the first closed section is 30 ° around the rotation axis of the moisture absorber, and the angle of the second closed section is 45 ° around the rotation axis of the moisture absorber. The dehumidifier according to any one of claims 3 to 7.