JP5345469B2 - Dehumidifier and operation control method thereof - Google Patents

Description

  The present invention relates to a dehumidifier and an operation control method thereof.

  Conventionally, as a dehumidifier, a casing whose interior is divided into a dehumidification passage and a regeneration passage, a dehumidification rotor that is rotatably arranged by a driving means across the both passages, and a dehumidification passage are disposed in the indoor space. An indoor air circulation fan that sucks air and circulates dry air dehumidified by the dehumidification rotor into the room, a regeneration air circulation fan that is disposed in the regeneration passage and circulates the regeneration air, and the regeneration passage Heat exchanger that is disposed and heats the regeneration air and the dehumidification rotor, and heat exchange that is disposed in the dehumidification passage and removes the contained moisture by cooling the regeneration air circulating inside with the air circulating outside. The thing provided with the tank and the tank which stores the water | moisture content removed by the said heat exchanger is well-known (for example, refer patent document 1).

  However, the conventional dehumidifier often uses a synchronous motor that can generate a large driving torque for the rotation of the dehumidifying rotor. Since the rotation speed of the synchronous motor depends on the power supply frequency, the speed at which the dehumidification rotor crosses the heating region by the heater may change according to the fluctuation of the power supply frequency. In some cases, there is a risk that the temperature of the dehumidification rotor rises beyond the temperature originally predicted. For this reason, it has been desired that the dehumidifier can be operated without depending on the power supply frequency.

Japanese Patent No. 3764727

  An object of the present invention is to provide a dehumidifier capable of appropriately adjusting the surface temperature of the dehumidification rotor within a certain range without depending on the power supply frequency, and an operation control method thereof.

As a means for solving the above problems, the present invention provides:
A casing having a dehumidifying passage and a regeneration passage;
A dehumidification rotor that is rotatably arranged across both the passages;
Drive means for rotationally driving the dehumidifying rotor in the forward rotation direction;
A first fan that is disposed in the dehumidifying passage and sucks ambient air and dehumidifies the dehumidified rotor by the dehumidifying rotor;
A second fan arranged in the regeneration passage and circulating the regeneration air;
A heater disposed in the regeneration passage for heating the regeneration air and the dehumidifying rotor;
A heat exchanger that cools and condenses the regenerated air flowing inside by air passing outside,
A tank for storing condensed water obtained by the heat exchanger;
A dehumidifier comprising:
A temperature detecting means for detect the environmental temperature is the temperature of the air before passing through the dehumidification rotor,
The higher the temperature detected by the temperature detection means, the higher the temperature of the dehumidification rotor by the drive means, thereby increasing the temperature of the dehumidification rotor surface temperature within a certain range, and
Is further provided.

  With this configuration, the rotor surface temperature can be maintained within a certain range by adjusting the rotational speed of the rotor based on the temperature detected by the temperature detecting means. Therefore, it is possible to prevent the occurrence of problems such that the dehumidification rotor is heated more than necessary or the regeneration of the dehumidification rotor becomes insufficient without being heated regardless of the change in the power supply frequency.

  Here, the operating environment temperature refers to all temperatures that have a correlation with the surface temperature of the dehumidifying rotor, such as the ambient temperature of the dehumidifier, the air temperature at the inlet of the dehumidifying passage of the casing, the temperature near the surface of the dehumidifying rotor, etc. means.

Equipped with a timekeeping means to keep track of the total driving time,
The control means may rotate the dehumidification rotor at a preset setting speed that is slower than that during normal operation when the cumulative operation time counted by the timing means becomes a preset setting time. preferable.

  With this configuration, if a set time during which the organic compound is considered to have adhered to the surface of the dehumidifying rotor during operation has elapsed, the amount of heating per unit time by the heating means can be increased by reducing the rotational speed of the dehumidifying rotor. Can do. Thereby, the surface temperature of a dehumidification rotor can be raised temporarily, and it becomes possible to remove effectively the organic compound adhering to the surface. The dehumidification rotor may be rotated at a set speed so that the organic compound attached to the surface of the dehumidification rotor can be sufficiently removed and the dehumidification rotor is not damaged or hardly received. .

  The dehumidifying rotor can be composed of a dehumidifying agent having a regeneration temperature of 300 ° C. or less. That is, since the rotational speed of the dehumidification rotor is adjusted based on the result of directly or indirectly measuring the surface temperature of the dehumidification rotor, the surface temperature of the dehumidification rotor can be reliably controlled within a certain range. Therefore, since the dehumidification rotor is not heated more than necessary, a dehumidification rotor having a low heat-resistant temperature and a regeneration temperature of 300 ° C. or less can be used.

Humidity detection means to detect the usage environment humidity,
When the dehumidification rotor passes through the dehumidification passage, the control means adjusts the rotational speed of the dehumidification rotor by drivingly controlling the drive means based on the use environment humidity detected by the humidity detection means. It is preferable to change the moisture absorption time.

  With this configuration, it is possible to adjust the heating amount necessary for regeneration to an appropriate value in consideration of the amount of moisture absorbed by the dehumidifying rotor due to the difference in humidity. For example, if the humidity is low and the amount of moisture absorption is small, it is possible to reliably prevent the dehumidification rotor from being heated more than necessary by the heating means by increasing the rotation speed of the dehumidification rotor. Become.

Comprising power detection means for detecting a power supply value to the heating means,
The control means drives and controls the drive means based on the supply power value detected by the power detection means so that the heating amount per unit time of the dehumidification rotor by the heating means falls within a certain range. It is preferable to adjust the rotational speed of the dehumidifying rotor.

  With this configuration, the rotational speed of the dehumidification rotor can be adjusted in consideration of fluctuations in the power supplied to the heating means, so that the temperature of the dehumidification rotor can be further controlled within a certain range.

  The drive means may be composed of a direct current motor.

  According to the present invention, since the rotational speed of the rotor is controlled based on the surface temperature of the rotor measured directly or indirectly by the temperature detecting means, the surface temperature of the rotor can be maintained within a certain range. . Therefore, it is possible to prevent the occurrence of problems such that the dehumidification rotor is heated more than necessary and is thermally damaged, or the dehumidification rotor is not regenerated without being heated and the moisture absorption capacity is reduced.

It is a perspective view which shows the state seen from the front side of the dehumidifier which concerns on this embodiment. It is a partially broken perspective view of FIG. It is a perspective view of the partition member of FIG. It is a perspective view which shows the state which looked at FIG. 1 from the opposite direction. FIG. 5 is a partially broken perspective view of FIG. 4. It is a perspective view which shows the state which looked at FIG. 3 from the opposite direction. It is side surface sectional drawing of the dehumidifier which concerns on this embodiment. It is a perspective view of a 2nd partition part. It is a perspective view which shows the state which looked at FIG. 8 from the opposite direction. (A) is an enlarged side view of the gear of the dehumidifying rotor shown in FIG. 3, (b) is an enlarged view of the gear of (a), and (c) is a sectional view of the gear of (a) and a photo interrupter. (A) is a figure which shows the output signal of a photo interrupter in the state which the dehumidification rotor is rotating forward, (b) is a figure which shows the output signal in reverse rotation. It is a front view which shows the structure which supports the dehumidification rotor of the dehumidifier of FIG. It is a figure which shows schematically the reproduction | regeneration channel | path of the dehumidifier of FIG. It is a partial expanded sectional view of the heater case of the dehumidifier of FIG. It is the BB sectional view taken on the line of FIG. FIG. 4 is a sectional view taken along line AA in FIG. 3. It is sectional drawing which shows the positional relationship of the radiator and heat exchange part of the dehumidifier of FIG. It is a partially broken perspective view of the radiator of FIG. It is a perspective view which shows the heat exchange part of the dehumidifier of FIG. It is a plane sectional view showing a modification of the heat exchange part of FIG. It is a block diagram of the dehumidifier which concerns on this embodiment. It is a flowchart which shows the organic compound removal process of the dehumidifier which concerns on this embodiment. It is a graph which shows the relationship between the detection temperature in the temperature detection sensor of FIG. 21, and the surface temperature of a dehumidification rotor. It is a graph which shows the relationship between the detection humidity in the humidity detection sensor of FIG. 21, and the surface temperature of a dehumidification rotor. It is a graph which shows the relationship between the difference in an operation mode, and the surface temperature of a dehumidification rotor. It is a graph which shows the relationship between a power supply voltage and the surface temperature of a dehumidification rotor.

(1. Overall configuration)
FIG. 1 shows a dehumidifier 11 according to an embodiment of the present invention. The dehumidifier 11 includes a dehumidification passage and a regeneration passage inside the dehumidifier body 12, and each drive component is driven and controlled by a control unit.

(1-1. Dehumidifier body)
The dehumidifier body 12 is obtained by dividing the internal space of a substantially rectangular parallelepiped casing 21 into two front and rear portions by a partition member 41.

(1-1-1. Casing)
The casing 21 includes a front cover 22 disposed on the upstream side of the dehumidifying passage, a rear cover 23 disposed on the downstream side of the dehumidifying passage, and a top cover 24 disposed on the upper portion thereof.

  The front cover 22 includes a front wall 25, upper and lower walls 26, and both side walls 27, and an intake port 28 that takes air into the dehumidifier 11 is formed in the front wall 25. The air inlet 28 is composed of a plurality of slits 29 that are continuous in the horizontal direction.

  As shown in FIG. 2, the rear cover 23 includes a rear wall 30, upper and lower walls 31, and both side walls 32, and the upper wall 31 has an exhaust port 33 for discharging the air inside the dehumidifier 11 to the outside. Is formed. The exhaust port 33 has a lattice shape that opens in a rectangular range along the edge of the upper wall 31 opposite to the front cover 22.

  The top cover 24 has a substantially rectangular parallelepiped shape, and a recess 36 extending from the top plate 35 to the exhaust port 33 is formed at the edge on the side opposite to the front cover 22. An opening / closing plate 38 is pivotably mounted about the support shaft 37 between both inner side surfaces constituting the recess 36. The direction of the air flow discharged from the dehumidifier 11 to the outside can be changed by rotating the opening / closing plate 38 and positioning it at a predetermined position.

(1-1-2. Partition member 41)
The partition member 41 includes a first partition portion 42 and a second partition portion 43.

  As shown in FIGS. 3 and 4, the first partition portion 42 is formed with a circular opening 44 and a rectangular cylindrical portion 45 adjacent to the side of the circular opening 44. A dehumidifying rotor 51 described later is disposed in the circular opening 44. A radiator 81 (described later) is disposed in the rectangular tube portion 45. A separation wall 46 is provided below the circular opening 44 and the rectangular cylinder 45. A heat exchanging portion 91 described later is disposed above the separation wall 46, and a water storage tank 15 for collecting condensed water is disposed below the separation wall 46.

  A circular opening 48 is formed in the vicinity of the center of the second partition 43, and a main fan 47 described later is disposed on the back side of the second partition 43. The main fan 47 is rotated by driving a main fan drive motor 49 having a rotation shaft fixed at the center thereof. The main fan drive motor 49 is supported by a support beam 48 a that is fixed to the inner edge of the circular opening 48 and extends in three directions from the center. A substantially semicircular inner wall 50 extending upward is formed around the main fan 47, and constitutes an involute passage for guiding the air taken into the dehumidifier 11 to the outside. The air blown from the main fan 47 to the involute passage is guided in the counterclockwise direction in FIG. 2 and is exhausted to the outside through the exhaust port 33.

  Here, the casing 21 and the partition member 41 are separated from each other. However, the first partition 42 may be integrated with the front cover 22 and the second partition 43 may be integrated with the rear cover 23. Is possible.

(1-2. Dehumidification passage)
The dehumidification passage is a passage from the intake port 28 to the exhaust port 33, and in the middle thereof, a dehumidification rotor 51 that adsorbs water vapor contained in air passing through the dehumidification passage (hereinafter referred to as process air); A main fan 47 for forming an air flow of the processing air is provided.

(1-2-1. Dehumidification rotor)
As shown in FIG. 5, the dehumidifying rotor 51 includes a disk-shaped rotor main body 52 and a rotor holder 53 attached to the outer peripheral edge of the rotor main body 52. A rotor bearing 54 having a through hole 54a is fixed to the center of the rotor body 52 by adhesion. As will be described later, the dehumidification rotor 51 is supported at its outer peripheral portion by a rotation support member 58, and a conventional structure that supports the central shaft is not employed. For this reason, the rotor holder 53 does not require support ribs extending radially from the center in the radial direction. Therefore, the opening area of the dehumidification rotor 51 can be increased, and it is possible to increase the dehumidification performance by allowing more processing air to pass therethrough.

  The rotor body 52 uses a ceramic honeycomb bonded with zeolite, silica gel or the like. Here, the dehumidifying rotor 51 is, for example, one having a low heat resistance temperature of 300 ° C. to 400 ° C., and is regenerated (evaporation of moisture absorbed) at a low temperature of 200 ° C. to 300 ° C., for example. The reason why the dehumidification rotor 51 having a low heat-resistant temperature could be used is that a heater in which an aluminum corrugated fin such as a PTC heater is bonded to the heat generating portion is used as the heater 64 as described later. That is, by using such a heater, it is possible to improve heat dissipation and suppress an excessive increase in the surface temperature of the dehumidifying rotor 51. Moreover, such a heater has a self-temperature control characteristic, and the rotor main body 52 is not heated exceeding a predetermined temperature.

  A gear portion 55 is formed on the outer peripheral surface of the rotor holder 53. Detection gears 56 for detecting the rotation and rotation direction of the dehumidification rotor 51 are formed in each gear 55a constituting the gear portion 55, respectively. The detection hole 56 extends from the center of the dehumidifying rotor 51 and is formed asymmetrically or only on one side of the center line with respect to a straight line (center line) passing through the center of each gear 55a. For example, in FIG. 6, the fan 55 is formed in a fan shape that spreads only upstream in the rotational direction of the dehumidifying rotor 51 with respect to the center line of the gear 55 a.

  The detection hole 56 is detected by a non-contact sensor composed of a light emitting element and a light receiving element, here a photo interrupter 57. In this case, when the dehumidification rotor 51 is rotating forward, the output signal from the photo interrupter 57 is the detection time next to the long detection time waveform when each gear 55a passes as shown in FIG. A short waveform is formed. On the other hand, when the dehumidifying rotor 51 rotates in the reverse direction, as shown in FIG. 9, when each gear 55a passes, a waveform with a long detection time is formed next to a waveform with a short detection time. Therefore, the rotation and rotation direction of the dehumidifying rotor 51 can be detected from the output signal of the photo interrupter 57. In this case, the dehumidifying rotor 51 is rotated in the forward direction except when special processing is performed.

  Further, the dehumidification rotor 51 is disposed in the circular opening 44 of the dehumidifier main body 12, and is supported by rotation support members 58 provided at two locations as shown in FIG. 10, via a drive gear 59a provided at one location. Rotate.

  Each rotation support member 58 is disposed below the center of the circular opening 44 of the first partition 42 and along the periphery of the circular opening 44 of the first partition 42. Each rotation support member 58 includes a plurality of gears 58 a on the outer peripheral surface, meshes with a gear 55 a constituting the gear portion 55 of the rotor holder 53, and rotates following the rotation of the dehumidifying rotor 51. Therefore, the detection hole 56 can be provided in each gear 58a of the rotation support member 58 as shown in FIG. 11 instead of each gear 55a of the gear portion 55 of the rotor holder 53. In this case, it is possible to reduce the size of the dehumidifying rotor 51 by reducing the gear 55a of the rotor holder 53 that has been enlarged to provide the detection hole 56. In addition, if the rotation support member 58 is the structure which can support the dehumidification rotor 51 rotatably, it is also possible to use other support members, such as a roller.

  The drive gear 59a is above the center of the circular opening 44 of the first partition 42, and between the dehumidification rotor 51 and a radiator 81 described later, on the periphery of the circular opening 44 of the first partition 42. It is arranged along. The drive gear 59a is fixed to the rotating shaft of the dehumidification rotor drive motor 59, and the dehumidification rotor 51 can be rotated forward by driving the dehumidification rotor drive motor 59. Here, a synchronous motor is used as the dehumidifying rotor drive motor 59. The synchronous motor can be driven forward and reverse at an accurate rotational speed proportional to the frequency of the AC power supply, but here it is only driven forward by a built-in clutch mechanism. When the dehumidification rotor drive motor 59 is driven to rotate forward, the dehumidification rotor 51 rotates in the normal direction, crosses the dehumidification passage, crosses the high-temperature region of the regeneration passage described later, and then crosses the cooling region.

(1-2-2. Main fan)
The main fan 47 is a bottomed cylindrical sirocco fan that is rotatably attached to the back side of the rear cover 23, and has a plurality of fins on the outer peripheral surface. At the center of the main fan 47, the rotation shaft of the main fan drive motor 48 is fixed. Then, by driving the main fan drive motor 48 and rotating the main fan 47, the air taken into the dehumidifier body 12 through the intake port 28 is transferred to the dehumidifying passage side and to the radiator 81 side described later. The air is branched and flows (hereinafter, air passing through the radiator 81 side is referred to as cooling air).

(1-3. Regeneration passage)
The regeneration passage is a passage for removing moisture absorbed from the dehumidification rotor 51 and constitutes a closed loop indicated by an arrow in FIG. 12, and the regeneration air circulates (hereinafter, the air circulating through the regeneration passage is referred to as regeneration air). To do.) In the middle of the regeneration path, a heater unit 61, a radiator 81, and a heat exchanging portion 91 that communicates the heater unit 61 and the radiator 81 are provided.

(1-3-1. Heater unit)
As shown in FIG. 4, the heater unit 61 includes a unit main body 62, a sub fan 63 provided at one end of the unit main body 62, and a heater 64 provided at the other end of the unit main body 62. ing.

  The unit main body 62 includes a fan housing portion 66 formed in a circular shape for disposing the sub fan 63, and a hollow rectangular parallelepiped shape provided along the radial direction of the dehumidifying rotor 51 on the opposite side of the fan housing portion 66. The heater accommodating portion 67, the fan accommodating portion 66 and the heater accommodating portion 67 communicate with each other, and a passage 68 extending on the surface of the dehumidifying rotor 51 toward the center of the dehumidifying rotor 51 is provided.

  The heater accommodating portion 67 is formed from the center side of the dehumidifying rotor 51 toward the peripheral side, and is disposed so as to face the surface of the dehumidifying rotor 51 at a predetermined interval. The heater accommodating portion 67 faces a portion corresponding to the 1/8 region of the surface of the rotor main body 52. The remaining 7/8 region of the rotor main body 52 is open so as to allow ventilation and is located in the dehumidifying passage.

  As shown in FIG. 13, the heater accommodating portion 67 has an upstream opening 72 located on the upstream side in the rotational direction of the dehumidification rotor 51, and a dehumidification rotor by a heater reflector 71 having a substantially L-shaped cross section. 51 is divided into a downstream opening 73 located downstream in the rotational direction of 51 (the dehumidification rotor 51 rotates forward in the direction of the arrow). The heater reflector 71 is made of metal, and here, stainless steel (SUS430) is used. A heater 64 is disposed in the upstream opening 72 so as to face the dehumidification rotor 51, and this region serves as a heating region 76 for supplying regenerated air heated to the dehumidification rotor 51. . On the other hand, the downstream opening 73 is a cooling region 77 in which the regeneration air blown out from the sub fan 63 is directly supplied to the dehumidifying rotor 51.

  As shown in FIG. 14, the heater housing 67 is integrally formed with a substantially circular mounting portion 74 that is mounted in surface contact with the end surface of the rotor bearing 54 provided at the center of the dehumidifying rotor 51. Yes. The rotor cover 111 to be described later is provided with a protruding portion 112 that is inserted into the through hole 54a of the rotor bearing 54 and extends to the mounting portion 74 of the heater accommodating portion 67 on the surface facing the rotor bearing 54 (FIG. 15). reference). The attachment portion 74 of the heater accommodating portion 67 and the protruding portion 112 of the rotor cover 111 are connected by a screw 113. Thereby, the unit main body 62 can be attached on the basis of the attachment part 74 which contact | abuts the end surface of the rotor bearing 54, and it becomes possible to make the clearance gap between the heater 64 and the dehumidification rotor 51 into a fixed dimension. As a result, it is possible to prevent the unit main body 62 from coming into contact with the dehumidification rotor 51, prevent air leakage from the regeneration air path, and prevent the dehumidification capability from being lowered.

  The sub fan 63 is a known sirocco fan, and rotates by driving the sub fan drive motor 63a to suck the air in the heat exchanging portion 91 and blow it out into the heater unit 61, thereby circulating the air in the regeneration passage.

  The heater 64 heats the processing air passing through the upstream opening 72 and supplies it to the dehumidifying rotor 51, and directly heats the dehumidifying rotor 51. Thereby, the moisture absorbed by the dehumidification rotor 51 can be evaporated, and the moisture absorption capability of the dehumidification rotor 51 can be recovered.

  Here, as described above, the production cost of the dehumidifier 11 is reduced by using, for example, a low temperature regeneration type dehumidification rotor that is regenerated at a low temperature of 200 ° C. to 300 ° C. as the dehumidification rotor 51. The low temperature regeneration type dehumidification rotor has a low moisture absorption speed and moisture absorption performance of the dehumidification element, but does not require a support rib from the rotor holder 53 and increases a passing amount of the processing air, thereby securing a wide moisture absorption area.

  The heater 64 generates heat by power supplied from a power source (not shown), and heats the regeneration air that passes through the dehumidification rotor 51 to heat indirectly or directly. Thereby, the dehumidification rotor 51 evaporates the absorbed moisture. Here, a PTC heater is used as the heater 64. PTC heaters are made of semiconductor ceramics with barium titanate (BaTi03) as the main component, have high heat dissipation performance, and high watt density (value of heater capacity divided by heater surface area, wattage per unit area). Can be designed to be. Therefore, the exclusive area of the PTC heater can be reduced to reduce the size. By the way, the PTC heater has the performance of suppressing the heat generation amount by increasing the resistance value when the temperature of the heater itself rises. For this reason, the PTC heater does not exceed a predetermined temperature (here, a temperature lower than the low-temperature heat-resistant temperature of the dehumidifying rotor 51) and does not reach a high temperature. Therefore, as described above, the dehumidifying rotor 51 can be a low-temperature regenerative type that has low heat resistance and is inexpensive.

  The heater 64 is preferably fan-shaped in the heater accommodating portion 67 and spreads radially outward from the center of the dehumidifying rotor 51. However, as long as the dehumidification rotor 51 can be sufficiently heated, the heater 64 may be rectangular along the radial direction. When the rectangular heater 64 is used, the heating time per unit area is long on the inner peripheral side of the dehumidifying rotor 51 and shorter on the outer peripheral side, and the dehumidifying rotor 51 cannot be uniformly heated in the radial direction. In this case, the watt density on the outer peripheral side of the heater 64 may be increased and the watt density on the inner peripheral side may be decreased, or the area of the heater opening on the inner peripheral side may be decreased.

(1-3-2. Radiator)
As shown in FIG. 15, the radiator 81 includes a first radiator section 82 into which heat from the heater 64 flows, a second radiator section 83 into which regenerated air once cooled by the first radiator section 82 flows, The upper part of these two radiator parts 83 is comprised with the cover body 84 which mutually connects. Moreover, the radiator 81 is arrange | positioned above the heat exchange part 91 mentioned later, and is attached to the rectangular cylinder part 45 of the 1st partition part 42 (refer FIG. 3).

  Each radiator part 82 and 83 is comprised by the some pipe 85 (85a, 85b) which consists of synthetic resin materials, such as polyethylene and a polypropylene. The first radiator portion 82 is constituted by a pipe 85a having a large diameter, and the second radiator portion 83 is constituted by a pipe 85b having a small diameter. As shown in FIG. 17, these pipes 85 are welded and integrated with a single flat plate upper plate 86 at the upper end and a single flat plate lower plate 87 at the lower end. Thereby, the distance between each pipe 85 can be kept constant, and it can prevent that pipes 85 contact or bend. In addition, it is preferable that the center of the pipe 85 is welded to the flat plate-shaped middle plate 88 in that the positional relationship between the pipes 85 can be further stabilized. The lower end of the first radiator section 82 communicates with a high temperature air flow passage 105 of a heat exchange section 91 described later, and the lower end of the second radiator section 83 communicates with a low temperature air flow passage 106 of a heat exchange section 91 described later. Yes. The lid 84 has a hollow rectangular parallelepiped shape that opens to the lower surface, and is fixed to the upper plate 86 with screws 89. Therefore, in the radiator 81, the regenerative air passes from the high-temperature air flow passage 105 through the first radiator portion 82, moves upward, is redirected by the lid body 84, and flows downward through the second radiator portion 83. Then, it flows out into the low-temperature air flow passage 106.

  By configuring the radiator 81 with the two radiator portions 82 and 83, the surface area can be sufficiently increased. Further, by configuring the first radiator portion 82 with the pipe 85a having a large diameter, it becomes possible to cause the condensed water generated in the first radiator portion 82 to flow down regardless of the flow of the regeneration air directed upward. ing. In addition, since the dew condensation water generated in the radiator 81 can be made to flow down to the heat exchanger 91 disposed below, it is not necessary to separately provide a dew condensation water drainage structure. It can be simplified.

(1-3-3. Heat exchanger)
As shown in FIG. 18, the heat exchanging portion 91 has a hollow tank shape, and the upper wall 92 of the heat exchanging portion 91 is a first horizontal plane in which an insertion port 93 through which the pipe 85 of the radiator 81 is inserted is formed. 94, a curved surface 95 curved along the shape of the dehumidifying rotor 51 from one end of the first horizontal plane 94, and separation of the first partition 42 from the end of the curved surface 95 opposite to the first horizontal plane 94. The inclined surface 96 extends obliquely downward toward the wall 46, and a second horizontal surface 97 extending in the horizontal direction from the end of the inclined surface 96 opposite to the curved surface 95. A drainage port 99 for draining condensed water from the radiator 81 is provided at the lowest point of the bottom wall 98 of the heat exchanging unit 91, and the bottom wall 98 of the heat exchanging unit 91 is drained from the lower side of the radiator 81. The guide surface 101 has a downward slope toward 99 and an inclined surface 102 from the end of the bottom wall 98 opposite to the guide surface 101 toward the drain port 99. The side wall 103 of the heat exchanging portion 91 is formed so as to cover the end surfaces of the upper wall 92 and the bottom wall 98.

  The heat exchanging portion 91 is attached below the dehumidifying rotor 51 and the radiator 81 of the dehumidifier body 12 and above the separating wall 46. The inside of the heat exchanging portion 91 is cooled by the radiator 81 and the high-temperature air flow passage 105 that conveys the high-temperature regenerated air that has passed through the dehumidification rotor 51 from the heater 64 to the radiator 81 by the partition 104 having the same shape as the side wall 103. It is divided into a low-temperature air flow passage 106 that conveys the low-temperature regeneration air to the heating unit 64. Then, heat can be exchanged between the high-temperature regeneration air passing through the high-temperature air flow passage 105 and the low-temperature regeneration air passing through the low-temperature air flow passage 106 via the partition wall 104.

  The partition wall 104 is formed of a metal material having high thermal conductivity, such as an aluminum alloy, and includes a plurality of uneven portions 107 on the front and back surfaces. The uneven portions 107 can increase the area of the front and back surfaces of the partition wall 104 and can generate turbulent flow in the high temperature air flow passage 105 and the low temperature air flow passage 106, respectively. It is possible to promote heat exchange between the air flow passages 106.

  One end portion of the high-temperature air flow passage 105 is opposed to the heater accommodating portion 67 through the dehumidifying rotor 51 and communicates with the rotor cover 111 extending so as to escape from the surface area of the dehumidifying rotor 51, and the other end portion is the first It communicates with the first radiator 82 through a horizontal plane 94. Therefore, the high-temperature regeneration air is conveyed in the direction of the arrow in the high-temperature air flow passage 105 (see FIG. 16). As a result, the regeneration air flows vertically downward from the rotor cover 111 into the high-temperature air flow passage 105, passes through the high-temperature air flow passage 105, and flows out vertically upward into the first radiator section 82. That is, the regeneration air flows in a substantially U shape. Accordingly, dust having a specific gravity greater than that of the regenerated air is also dropped by centrifugal force in addition to falling due to its own weight, and thus it is easy to adhere to the dew condensation water flowing on the guide surface 101, and dust in the regenerated air is more reliably removed. be able to.

  The guide surface 101 rises from the drain port 99 by a predetermined angle along the flow direction of the regeneration air in the high-temperature air flow passage 105. Therefore, the high temperature regenerated air in the high temperature air flow passage 105 collides with the guide surface 101 and the dust easily adheres to the dew condensation water flowing on the guide surface 101, so that the dust in the high temperature regenerated air can be further removed. .

  One end of the low-temperature air flow passage 106 communicates with the second radiator 83 and the other end communicates with the heater unit 61. Therefore, the low temperature regeneration air is conveyed in the direction of the arrow in the low temperature air flow passage 106.

  The low-temperature air flow passage 106 is located on the upstream side of the dehumidification passage, and the high-temperature air flow passage 105 is attached to the dehumidifier body 12 so as to be located on the downstream side of the dehumidification passage. The air sucked from the intake port 28 also flows to the dehumidifying passage side. However, the dehumidifying passage is configured such that the low-temperature air flow passage 106 is positioned on the upstream side of the sucked air flow. For this reason, compared with the case where the high temperature air flow path 105 is provided on the upstream side of the dehumidification path, the temperature difference between the sucked air and the low temperature regeneration air flowing in the low temperature air flow path 106 can be reduced. That is, it becomes difficult for the heat of the low temperature regeneration air to be taken away by the sucked air.

  Further, the guide surface 101 of the heat exchanging portion 91, that is, the bottom surfaces of the high temperature air flow passage 105 and the low temperature air flow passage 106, not only drains the condensed water generated here, but also the condensed water generated by the radiator 81. It can be used as a drainage passage for draining to 105. The drainage passage is constituted by a drainage port 99 and a guide surface 101. Condensed water generated in the radiator 81 drops on the guide surface 101 and is discharged along the inclined surface of the guide surface 101 toward the drain port 99. Since the drainage passage is provided integrally with the high-temperature air flow passage 105 and the low-temperature air flow passage 106, there is no need to provide a drainage passage using separate parts or the like, and the manufacturing cost can be reduced by reducing the number of parts. .

(1-4. Control Unit 120)
The control unit 120 controls the main fan 47, the sub fan 63, the heater 64, and the like based on the input signal from the photo interrupter 57 and the like.

(2. Operation)
Next, the dehumidifying operation of the dehumidifier 11 according to the present embodiment will be specifically described.

  When the main fan 47 is driven, ambient air sucked from the intake port 28 branches and flows to the dehumidification passage side and the radiator 81 side.

(2-1. Air flow in the dehumidifying passage)
In the dehumidifying passage, when the air sucked from the intake port 28 passes through the dehumidifying rotor 51, the contained moisture is adsorbed. Thereby, the dried air flows through the involute passage and is discharged into the room from the exhaust port 33 of the rear cover 23.

  In the dehumidifying rotor 51, the support ribs are not provided on the front and back surfaces as described above, and the opening area of the dehumidifying rotor 51 is increased, and more air can be passed.

  In the radiator 81, the branched cooling air out of the air sucked from the intake port 28 passes and exchanges heat with the regenerated air flowing in the radiator 81.

(2-2. Air flow in the regeneration passage)
In the regeneration passage, the regeneration air flows into the heater accommodating portion 67 through the passage 68 by driving the sub fan 63. The regenerated air that has flowed into the heater housing 67 is branched by the heater reflector 71, one is heated by the heater 64, passes through the dehumidification rotor 51 (high temperature regenerated air), and the other passes through the heater 64. Without passing through the dehumidifying rotor 51 (low-temperature regeneration air).

  When the high-temperature regeneration air passes through the dehumidification rotor 51, the moisture adsorbed on the dehumidification rotor 51 is heated and evaporated. When the low-temperature regeneration air passes through the dehumidification rotor 51, the dehumidification rotor 51 heated by the high-temperature regeneration air and the heater 64 is cooled, so that the air passing through the dehumidification rotor 51 is heated in the dehumidification passage. To be discharged.

  The high temperature regeneration air and the low temperature regeneration air that have passed through the dehumidification rotor 51 flow into the high temperature air flow passage 105 of the heat exchange unit 91 via the rotor cover 111. Since the hot air flow passage 105 is long in the lateral direction, the moving distance of the regeneration air becomes long. Therefore, the dust contained in the regenerated air can be easily dropped by its own weight, and can be removed by adhering to the condensed water generated on the bottom wall 98. Further, the regenerated air in the high-temperature air flow passage 105 collides with the guide surface 101, and the dust in the regenerated air easily adheres to the condensed water flowing on the guide surface 101, so that the dust can be further removed. The regenerative air moves in the rotor cover 111 vertically downward, moves in the high-temperature air flow passage 105 in a substantially horizontal direction, and moves the first radiator portion 82 vertically upward. As a result, the regenerated air is transported in a substantially U-shape, so that dust having a specific gravity greater than that of the regenerated air falls due to centrifugal force in addition to dripping due to its own weight, so that it adheres to the condensed water flowing on the guide surface 101. Thus, dust in the regeneration air can be more reliably removed.

  The regenerated air that has passed through the high-temperature air flow passage 105 flows into the first radiator section 82 and is conveyed upward in the pipe 85a. When the regeneration air passes through the first radiator section 82, the regeneration air is cooled by heat exchange due to a temperature difference between the regeneration air and the cooling air passing through the radiator 81, and moisture in the regeneration air is condensed. The condensed water is drained from the radiator 81 to the drain passage of the heat exchanging portion 91 and is collected from the drain port 99 to the water storage tank 15. Thus, since the drainage passage is provided integrally with the bottom wall 98, it is not necessary to provide the drainage passage using another part or the like, and the number of parts of the dehumidifier 11 can be reduced and the manufacturing cost can be reduced. Moreover, since the cross-sectional area of the pipe 85a which comprises the 1st radiator part 82 is large, the dew condensation water which generate | occur | produces in the pipe 85a can be guided to the lower end of the pipe 85a, and can be drained, conveying regenerated air upward.

  The regeneration air that has flowed out of the first radiator section 82 is folded back by the lid 84 and flows into the second radiator section 83 to exchange heat with the cooling air. Specifically, the regeneration air in the second radiator 83, that is, the regeneration air that has been cooled, exchanges heat with the upstream side of the cooling air, so that the temperature of the regeneration air in the radiator 81 is further lowered to reduce the temperature of the radiator 81. The cooling performance can be improved.

  Further, in the heat exchanging portion 91, the regeneration air flows in the opposite direction through the partition wall 104 in the high temperature air flow passage 105 and the low temperature air flow passage 106. Heat exchange can be performed with the regenerated air. Thereby, the high temperature regeneration air before flowing into the radiator 81 can be cooled in advance, and the low temperature regeneration air before flowing into the heater 64 can be preheated.

  The regeneration air that has flowed out of the low-temperature air flow passage 106 is supplied again to the heater housing 67 by the sub fan 63 and circulates.

(2-3. Organic compound removal treatment)
By the way, when the dehumidifier is used for a long time, the organic compound adheres to the dehumidification rotor 51. If this organic compound is left as it is, it may cause a strange odor, reduce the dehumidifying performance, and possibly cause a fire.

  Therefore, an organic compound removal process (refresh process) for removing the organic compound is executed as shown in the flowchart of FIG.

  That is, first, it is determined whether or not the operation mode should be shifted to a refresh mode for removing organic compounds (step S1). Here, whether or not to shift to the refresh mode is determined based on whether or not the cumulative value of the operation time in the normal operation mode has reached a preset transition time to the refresh mode. However, whether or not to shift to the refresh mode is determined based on the result of directly detecting the surface state of the dehumidifying rotor 51 with an ultrasonic sensor, the change in the amount of air passing through the dehumidifying rotor 51, or the like. It is also possible.

  If it is determined that the mode should be changed to the refresh mode, the dehumidification rotor drive motor 59 is reversely rotated to start the refresh mode by reducing the rotational speed (step S2). Thereby, after the dehumidification rotor 51 crosses the cooling region, it crosses the heating region. In the heating region, the dehumidification rotor 51 crosses from the downstream side of the air flow. However, the air flow is changed to about 90 degrees toward the dehumidification rotor 51. Increases the air volume. For this reason, the temperature of the air heated by the heater 64 is lower on the downstream side than on the upstream side. That is, when the dehumidifying rotor 51 crosses the heating region, it is heated so that the temperature gradually increases. Therefore, the organic compound adhering to the dehumidifying rotor 51 is not rapidly heated and reaches the ignition point, but gradually rises in temperature and is thermally decomposed. The thermally decomposed organic compound passes through the dehumidifying rotor 51 and is adsorbed and removed by the dew condensation water in the same manner as the dust and the like. If the preset refresh time elapses after the transition to the refresh mode (step S3), the cumulative value of the operation time in the normal operation mode is reset (= 0) (step S4), and the operation mode is set to the normal operation. Return to the mode (step S5).

  On the other hand, if it is determined that the transition to the refresh mode should not be performed (step S1: NO), the operation time count in the normal operation mode is continued until the cumulative value reaches the transition time.

  As described above, according to the dehumidifier according to the embodiment, when the adhesion amount of the organic compound to the dehumidification rotor 51 is increased, the organic compound is removed by switching to the refresh mode only by rotating the dehumidification rotor 51 in the reverse direction. Can do. Therefore, the existing structure can be handled without any changes, and a simple and inexpensive configuration can be achieved.

  By the way, in the said embodiment, the surface temperature of the dehumidification rotor 51 is prevented from rising too much as follows.

  That is, a temperature detection sensor 130 (thermistor) is provided in the vicinity of the air inlet 28 on the inner surface side of the front cover 22. The temperature detected by the temperature detection sensor 130 (the air temperature immediately after the ambient atmosphere of the dehumidifier body 12 is sucked in, here, this air temperature becomes the use environment temperature) is input to the control unit 120. It has become.

  The control unit 120 controls the rotational speed of the dehumidification rotor 51 according to Table 1 based on the temperature detected by the temperature detection sensor 130. Here, the case where the detected temperature is 16 to 24 ° C. is used as a reference, and the rotation speed of the dehumidifying rotor 51 at which the surface temperature of the dehumidifying rotor 51 is 295 to 305 ° C. is 100%.

  The graph of FIG. 23 shows the change in the surface temperature of the dehumidification rotor 51 when the rotational speed of the dehumidification rotor 51 is controlled according to Table 1. When the dehumidifying rotor 51 is rotated at a constant speed, as indicated by a dotted line in the figure, the surface temperature of the dehumidifying rotor 51 gradually increases as the detected temperature increases, and may deviate from the appropriate temperature range. On the other hand, as described above, by controlling the rotation speed of the dehumidifying rotor 51, the surface temperature of the dehumidifying rotor 51 could be maintained within the range of the appropriate temperature.

  In addition, this invention is not limited to the structure described in the said embodiment, A various change is possible.

  For example, in the above embodiment, the rotational speed of the dehumidification rotor is controlled based on the temperature detected by the temperature detection sensor 130 provided in the vicinity of the intake port 28. However, the position where the temperature detection sensor 130 is provided is the intake air. Any location may be used as long as it can detect the use environment temperature, such as the upper surface of the dehumidifier body, not just near the mouth 28.

  In the above embodiment, the rotational speed of the dehumidification rotor 51 is controlled based on the detected temperature. However, the heating amount of the heater 64 and the rotational speed of the dehumidification rotor 51 are as follows based on the detected humidity. May be controlled.

  The detected humidity may be detected by, for example, a humidity detection sensor 131 provided in the vicinity of the intake port 28. Then, the rotational speed of the dehumidifying rotor 51 is controlled according to Table 2 based on the humidity detected by the humidity detection sensor 131 (detected humidity: the humidity of the ambient atmosphere sucked from the intake port 28, that is, the operating environment humidity). Here, a dehumidification rotor in which the surface temperature of the dehumidification rotor 51 is 295 to 305 ° C. by setting the energization to the heater 64 to 100% (maximum) on the basis of the case where the detected humidity is 50 to 60%. The rotational speed of 51 is 100%. If the detected humidity decreases, the amount of heating by the heater 64 and the rotational speed of the dehumidifying rotor 51 are suppressed accordingly. That is, when the detected humidity is lower than the reference value (50 to 60%), the moisture carrying amount of the dehumidifying rotor 51 in the region crossing the dehumidifying passage cannot be maximized (100%). Therefore, the rotational speed of the dehumidification rotor 51 is decreased, and the moisture absorption time per unit area of the dehumidification rotor 51 is increased. Further, when the rotational speed of the dehumidifying rotor 51 is decreased, the amount of heating by the heater 64 per unit area of the dehumidifying rotor 51 increases and the surface temperature rises too much. Suppress the rise. On the other hand, when the detected humidity exceeds the reference value (50 to 60%), the heating amount by the heater 64 and the rotational speed of the dehumidifying rotor 51 are already set to the maximum (100%), and thus control within that range cannot be performed. . However, the heating amount by the heater 64 and the rotation speed of the dehumidifying rotor 51 are set so that the decrease can be suppressed within the appropriate temperature range although the surface temperature of the dehumidifying rotor 51 decreases.

  The graph of FIG. 24 shows the change in the surface temperature of the dehumidification rotor 51 when the rotation speed of the dehumidification rotor 51 is controlled according to Table 2. When the dehumidifying rotor 51 is rotated at a constant speed, the surface temperature of the dehumidifying rotor 51 exceeds the appropriate temperature in the low humidity range where the detected humidity is about 45% or less, as indicated by the dotted line in the figure. On the other hand, as described above, the surface temperature of the dehumidification rotor 51 could be maintained within an appropriate range by controlling the heating amount by the heater 64 and the rotational speed of the dehumidification rotor 51.

  In the above embodiment, the case where the dehumidifying operation is performed only in the normal dehumidifying mode has been described. However, the dehumidifying mode may be adjusted by changing the amount of current supplied to the heater 64.

  For example, as shown in Table 3, when the dehumidifying operation mode can be switched in three stages of “strong (300 W)”, “medium (200 W)”, and “weak (100 W)”, the surface temperature of the dehumidifying rotor 51 Is adjusted to be constant (here, 300 ° C.), the rotation speed of the dehumidifying rotor 51 is adjusted.

  The graph of FIG. 25 shows the change in the surface temperature of the dehumidification rotor 51 when the rotational speed of the dehumidification rotor 51 is controlled according to Table 3. When the dehumidifying rotor 51 is rotated at a constant speed, as shown by the dotted line in the figure, the operation mode is “medium” and “weak” and the temperature is considerably lower than the appropriate temperature, and the dehumidifying rotor 51 is not sufficiently regenerated. It became. On the other hand, by controlling the rotation speed of the dehumidification rotor 51 according to Table 3, the surface temperature of the dehumidification rotor 51 can be made constant, and the dehumidification rotor 51 can be appropriately reproduced.

  In the above embodiment, the rotational speed of the dehumidification rotor 51 is constant regardless of the level of the power supply voltage. However, the rotational speed of the dehumidification rotor 51 is set according to the level of the power supply voltage detected by the power supply voltage detection sensor 132. You may make it control. That is, as the power supply voltage increases, the power supplied to the heater 64 increases and the surface temperature of the dehumidifying rotor 51 increases. Therefore, the surface temperature increases by increasing the rotational speed of the dehumidifying rotor 51. Reduce the degree.

  For example, as shown in Table 4, when the power supply voltage is 97 to 100 (V) as a reference and the energization amount to the heater 64 is 282 to 300 (W), the surface temperature of the dehumidifying rotor 51 is 290. The rotational speed of the dehumidifying rotor 51 determined to be ˜300 ° C. is set to 100%. And the rotational speed of the dehumidification rotor 51 is reduced as a power supply voltage becomes low. Further, the rotational speed of the dehumidifying rotor 51 is increased as the power supply voltage increases.

  The graph of FIG. 26 shows changes in the surface temperature of the dehumidification rotor when the rotation speed of the dehumidification rotor 51 is controlled according to Table 4. When the dehumidification rotor 51 is rotated at a constant speed, as shown by the dotted line in the figure, the lower the power supply voltage, the lower the surface temperature of the dehumidification rotor 51 deviates from the appropriate temperature, and conversely, the higher the power supply voltage, the higher. As the surface temperature of the dehumidifying rotor 51 increases, it deviates from the appropriate temperature. On the other hand, the surface temperature of the dehumidification rotor 51 can be maintained within an appropriate range by controlling the rotation speed of the dehumidification rotor 51 according to the level of the power supply voltage.

  In the above embodiment, a synchronous motor is used as the dehumidifying rotor drive motor 59 and driven by AC power. However, an inverter may be controlled using a normal AC motor, or a DC power source may be used. A DC motor driven by the above may be used. When a DC motor is used, commercial power (100V-50Hz or 100V-60Hz) is rectified and smoothed, converted to a desired voltage by an AC-DC converter, and boosted by a DC-DC converter to drive the DC motor. As a result, the rotational speed of the dehumidifying rotor drive motor 59 can be arbitrarily controlled without being affected by frequency fluctuations.

  Further, the dehumidifying rotor drive motor 59 may be controlled by an inverter. In other words, commercial power source (100V-50Hz or 100V-60Hz) is rectified and smoothed, converted to rectangular wave of desired frequency by AC-DC converter, and then converted to AC by DC-AC converter to drive dehumidification rotor What is necessary is just to supply to the motor 59. As a result, the rotational speed of the dehumidifying rotor drive motor 59 can be arbitrarily controlled without being affected by the fluctuation of the frequency of the AC power.

DESCRIPTION OF SYMBOLS 11 ... Dehumidifier 12 ... Dehumidifier main body 15 ... Water storage tank 21 ... Casing 22 ... Front cover 23 ... Rear cover 24 ... Top cover 25 ... Front wall 26 ... Upper and lower walls 27 ... Both side walls 28 ... Intake port 30 ... Rear wall 31 ... Upper and lower walls 32 ... both side walls 33 ... exhaust port 35 ... top plate 36 ... recess 37 ... support shaft 38 ... opening and closing plate 41 ... partition member 42 ... first partition part 43 ... second partition part 44 ... circular opening 45 ... rectangular shape Cylindrical part 46 ... separation wall 47 ... main fan (first fan)
48 ... Circular opening 49 ... Main fan drive motor 50 ... Inner wall 51 ... Dehumidification rotor 52 ... Rotor body 53 ... Rotor holder 54 ... Rotor bearing 54a ... Through hole 55 ... Gear portion 55a ... Gear 56 ... Detection hole 57 ... Photo interrupter (rotation) State detection means)
58... Rotation support member 59... Dehumidification rotor drive motor (drive means)
59a ... Drive gear 61 ... Heater unit 62 ... Unit body 63 ... Sub fan (second fan)
63a ... Sub fan drive motor 64 ... Heater heater 66 ... Fan housing portion 67 ... Heater housing portion 68 ... Passage 71 ... Heater reflector 72 ... Upstream opening 73 ... Downstream opening 74 ... Mounting portion 76 ... Heating region 77 ... Cooling area 81 ... Radiator (heat exchanger)
82 ... 1st radiator part 83 ... 2nd radiator part 84 ... Cover 85a ... Pipe with large diameter 85b ... Pipe with thin diameter 86 ... Upper plate 87 ... Lower plate 88 ... Middle plate 91 ... Heat exchange part 92 ... Upper wall 93 ... insertion hole 94 ... first horizontal plane 95 ... curved surface 96 ... inclined surface (upper wall)
97 ... Second horizontal plane 98 ... Bottom wall 99 ... Drain port 101 ... Guide surface 102 ... Inclined surface (bottom wall)
DESCRIPTION OF SYMBOLS 103 ... Side wall 104 ... Partition 105 ... High temperature air flow path 106 ... Low temperature air flow path 107 ... Uneven part 111 ... Rotor cover 112 ... Projection part 113 ... Screw 120 ... Control part (control means)
130 ... Temperature detection sensor (temperature detection means)
131: Humidity detection sensor (humidity detection means)
132: power supply voltage detection sensor (power detection means)

Claims (8)

A casing having a dehumidifying passage and a regeneration passage;
A dehumidification rotor that is rotatably arranged across both the passages;
Drive means for rotationally driving the dehumidifying rotor in the forward rotation direction;
A first fan that is disposed in the dehumidifying passage and sucks ambient air and dehumidifies the dehumidified rotor by the dehumidifying rotor;
A second fan arranged in the regeneration passage and circulating the regeneration air;
A heater disposed in the regeneration passage for heating the regeneration air and the dehumidifying rotor;
A heat exchanger that cools and condenses the regenerated air flowing inside by air passing outside,
A tank for storing condensed water obtained by the heat exchanger;
A dehumidifier comprising:
A temperature detecting means for detect the environmental temperature is the temperature of the air before passing through the dehumidification rotor,
The higher the temperature detected by the temperature detection means, the higher the temperature of the dehumidification rotor by the drive means, thereby increasing the temperature of the dehumidification rotor surface temperature within a certain range, and
A dehumidifier further comprising: The control means stores a data table in which a plurality of temperature ranges and the rotation speed of the dehumidifying rotor are associated with each other, and when a detected temperature is input from the temperature detecting means, the dehumidifying rotor based on the data table is stored. The dehumidifier according to claim 1, wherein a rotational speed is determined . It has time measuring means to time the accumulated time of dehumidification operation,
The control means causes the dehumidification rotor to rotate at a preset setting speed that is slower than that during normal operation when the cumulative time of the dehumidification operation timed by the timing means becomes a preset setting time. The dehumidifier according to claim 1 or 2.   The dehumidifier according to any one of claims 1 to 3, wherein the dehumidifying rotor is composed of a dehumidifying agent having a regeneration temperature of 300 ° C or lower. Humidity detection means to detect the usage environment humidity,
When the dehumidification rotor passes through the dehumidification passage, the control means adjusts the rotational speed of the dehumidification rotor by drivingly controlling the drive means based on the use environment humidity detected by the humidity detection means. The dehumidifier according to any one of claims 1 to 4, wherein the moisture absorption time is changed. Comprising power detection means for detecting a power supply value to the heating means,
The control means drives and controls the drive means based on the supply power value detected by the power detection means so that the heating amount per unit time of the dehumidification rotor by the heating means falls within a certain range. The dehumidifier according to any one of claims 1 to 5, wherein the rotational speed of the dehumidifying rotor is adjusted.   The dehumidifier according to any one of claims 1 to 6, wherein the driving means is a DC motor. A casing having a dehumidifying passage and a regeneration passage;
A dehumidification rotor that is rotatably arranged across both the passages;
Drive means for rotationally driving the dehumidifying rotor in the forward rotation direction;
A first fan that is disposed in the dehumidifying passage and sucks ambient air and dehumidifies the dehumidified rotor by the dehumidifying rotor;
A second fan arranged in the regeneration passage and circulating the regeneration air;
A heater disposed in the regeneration passage for heating the regeneration air and the dehumidifying rotor;
A heat exchanger that cools and condenses the regenerated air flowing inside by air passing outside,
A tank for storing condensed water obtained by the heat exchanger;
An operation control method for a dehumidifier comprising:
Detects environmental temperature is the temperature of the air before passing through the dehumidification rotor, the higher the temperature to be detected, by increasing the rotational speed of the dehumidification rotor by said driving means, the surface of the dehumidification rotor A method for controlling the operation of a dehumidifier, wherein the temperature change is controlled within a certain range.

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