JP3998042B2 - Dehumidifier - Google Patents

Description

  The present invention relates to an adsorption-type dehumidifying device provided with a rotary adsorbent (dehumidification rotor) mainly used for dehumidification of a room in a general home, drying of laundry dried in the room, etc., and a method for treating condensed water of the dehumidification device It is about.

  In recent years, in an adsorption type dehumidifier equipped with a rotary adsorbent (dehumidification rotor) mainly used in general households, the air used for regeneration is circulated into a high dew point state, and the air in the high dew point state is moved indoors. It is common to perform dehumidification by cooling with air and condensing and collecting it as condensed water (see, for example, Patent Document 1).

  Hereinafter, the configuration and operation of an adsorption-type dehumidifier that absorbs moisture from the room with an adsorbent and collects it as condensed water will be described with reference to FIG.

  FIG. 9 is a simplified cross-sectional view showing the structure of a conventional dehumidifying device that circulates air used for regeneration and collects it as condensed water. As shown in FIG. 9, the main body 101 of the dehumidifying device sucks indoor air. An opening 102 and an outlet 103 are opened, and an adsorbent 107 that absorbs moisture from room air in a moisture absorption section 104 in the main body 101 and is dehumidified and regenerated by heating means 106 in a regeneration section 105, and a moisture absorption section 104 A driving means 108 that rotates the adsorbent 107 so that the regeneration unit 105 is continuously replaced; a processing fan 109 that sucks room air from the suction port 102 and supplies it to the moisture absorption unit 104; A regeneration fan 110 for supplying high-temperature regeneration air to the regeneration unit 105 via the heating means 106, and the regeneration air containing dehumidified components of the adsorbent 107 in the regeneration unit 105. Forming a circulation air path 112 for circulating back and a condenser 111 for cooling the room air, the cooled regeneration air in the condenser 111 to the reproduction unit 105 to be supplied by the fan 109.

The operation of the dehumidifier configured as described above will be described. Indoor air is sucked from the suction port 102 by the processing fan 109 and supplied to the condenser 111 to cool the high humidity regeneration air and supply it to the moisture absorbing unit 104. Is done. In the moisture absorption unit 104, the room air is absorbed by the adsorbent 107 to become dry air, and is blown out into the room from the outlet 103. On the other hand, the regenerated air created by the regenerative fan 110 is heated by the heating means 106 and becomes high temperature and is supplied to the regenerating unit 105. After the regenerator 105 contains moisture dehumidified from the adsorbent 107 and becomes high humidity, it is cooled to the dew point temperature or lower by the indoor air in the condenser 111 and is sucked into the regenerative fan 110 and circulated. Due to this circulation, the regenerated air maintains a dew point higher than the temperature of the room air and promotes condensation in the condenser 111. The water in the regenerated air cooled to the dew point temperature or lower by the condenser 111 becomes condensed water and is drained to the outside through the drain hole 113, and the amount of the drained condensed water becomes the dehumidifying amount of the dehumidifying device. Since there is a limit to the amount of moisture absorbed by the adsorbent 107, the adsorbent 107 is rotated and moved by the driving means 108, and the moisture absorption in the moisture absorption section 104 and the dehumidification regeneration in the regeneration section 105 are continuously exchanged and executed repeatedly. , Enabling continuous dehumidification for a long time.
Japanese Unexamined Patent Publication No. 2000-126498 (page 2-3, FIG. 2)

  As in the above example, a technique for dehumidifying by circulating air used for regeneration to maintain a high dew point state and cooling it with indoor air and collecting it as condensed water has been disclosed. In the regenerative fan 110 that becomes saturated steam in a portion other than the condenser 111 in the circulation air path 112, the regenerated air is cooled by an external atmosphere and is likely to condense. There was a problem that it stayed and air flow rate was reduced. In order to treat the accumulated dew condensation water, a large measure such as draining by connecting a hose to the regeneration fan 110 is required.

  The present invention solves the above-described problem, and suppresses condensation in the regeneration fan 110 and reliably prevents the condensation water remaining in the circulation air passage 112 other than the condenser 111, particularly in the regeneration fan 110. It is another object of the present invention to provide a dehumidifying device that can be simply processed to maintain a predetermined amount of regenerated air and a method for treating condensed water in the dehumidifying device.

In order to achieve the above object, the dehumidifying device of the present invention forms a surface directly facing the adsorbent of the casing with a metal member having good heat conduction so as to transfer heat into the regenerative fan, and further increases the heat transfer area. In order to stir the regenerated air, a plurality of protrusions and protrusions are formed on the metal member and the opposing surface of the metal member. Then , heat can be efficiently transferred to the regeneration air inside the casing to increase the temperature, and condensation within the regeneration fan can be suppressed.

  According to the present invention, the following effects can be obtained.

The regeneration fan is arranged on the rear side of the regeneration unit in the rotation direction of the adsorbent and on the rear side in the ventilation direction of the moisture absorption unit, and the surface directly facing the adsorbent of the regeneration fan casing is formed of a metal member having good heat conduction. Thus , heat can be transmitted to the regenerated air in the casing via the metal member, and the temperature of the regenerated air can be increased to reduce the relative humidity and suppress dew condensation.

  Further, by forming a plurality of convex portions on the metal member toward the inside of the casing, the heat transfer area can be increased and the amount of heat transfer can be increased.

In addition, by forming a plurality of protrusions on the opposing surface of the metal member toward the inside of the casing, the main stream of the regenerative air can be guided to the metal member side having a higher temperature and stirred to increase the amount of heat transfer.

Further, by disposing a plurality of protrusions formed on the facing surfaces of the plurality of protrusions and the metal member in the metal member so as not to overlap each other, the agitation and increased heat transfer area to the convex portion of the metal member The amount of heat transfer can be increased by providing a double effect.

According to the present invention, a regeneration fan is arranged at a rear stage in a ventilation direction of a moisture absorption part of an adsorbent material, a surface directly facing the adsorbent material of the casing is formed of a metal member, and heat is regenerated air in the casing via the metal member. In this case, the temperature of the regeneration air is increased to reduce the relative humidity and suppress dew condensation.

  Moreover, a some convex part is formed in a metal member toward the inner side of a casing, a heat-transfer area is increased and the heat-transfer amount is raised.

Further, a plurality of protrusions are formed on the opposing surface of the metal member toward the inside of the casing, and the main flow of the regeneration air is guided to the metal member side having a higher temperature and stirred to increase the amount of heat transfer.

In addition, a plurality of protrusions formed on the metal member and a plurality of protrusions formed on the opposing surface of the metal member are arranged so as not to overlap each other, so that the heat transfer area is increased and stirring is not performed on the protrusion of the metal member. It has a heavy effect and increases heat transfer.

  Embodiments of the present invention will be described below with reference to the drawings. In addition, the same code | symbol is used about the same component as a prior art example, and detailed description is abbreviate | omitted.

FIG. 1 is a simple exploded view showing a schematic configuration of a dehumidifying apparatus in an embodiment of the present invention . As shown in FIG. 1, this dehumidifier opens a suction port 102 and a blower outlet 103 in a case 201 that forms an outline of a main body 101, and sucks indoor air into the main body 101 from the suction port 102. A processing fan 109 that blows out into the room is provided. A cylindrical adsorbent 107 is rotatably attached to the partition plate 203 around the rotation shaft 202 at the front stage of the processing fan 109, and is rotated by the operation of the driving means 108 provided on the outer periphery of the adsorbent 107. ing. In addition, a part of the adsorbent 107 is covered with a fan-shaped box 204 from the rear side of the indoor air flow direction, the heating means 106 is included in the box 204, and the box 204 cover portion of the adsorbent 107 is replaced with the regeneration unit 105. The other part is divided into the moisture absorption part 104. Room air is supplied to the hygroscopic section 104 by a processing fan 109 to absorb moisture to the adsorbent 107, and high temperature regenerated air is supplied to the regenerating section 105 via the heating means 106 by a regenerating fan 110 connected to the box 204. The adsorbent 107 is dehumidified and regenerated. The regeneration fan 110 is connected in the vicinity of the box 204, and is disposed on the rear side of the adsorbent 107 in the direction of ventilation of the room air as in the box 204. A hollow condenser 111 having an inlet pipe 205, an outlet pipe 206, and a drain hole 113 is provided upstream of the adsorbent 107 in the indoor air ventilation direction, and the regeneration air supplied to the regeneration unit 105 is supplied from the inlet pipe 205. The circulation air passage 112 is formed by being introduced into the condenser 111 and connected to the regeneration fan 110 through the connection pipe 207 provided on the partition plate 203 from the outlet pipe 206. In addition, a plurality of ventilation holes 208 capable of ventilation are opened in the outer wall of the condenser 111, indoor air blown by the processing fan 109 is passed through the ventilation holes 208, and the regenerated air circulated in the condenser 111 is Cool down below the dew point temperature to cause condensation. Moisture in the regenerated air condensed on the inner surface of the condenser 111 is dropped downward by its own weight and collected in the tank 209 through the drain hole 113. By removing the tank 209 from the main body 101 and draining it, the condensed water is treated. In the above configuration, the regeneration air circulates in the circulation air passage 112 at a high dew point state, and becomes saturated steam in the path from the outlet pipe of the condenser 111 to the box 204. Therefore, the regeneration fan 110 interposed in the path. In this case, condensation is caused by being cooled by the external atmosphere.

2A, 2B, and 2C are a perspective view and an exploded view showing a detailed configuration of the regeneration fan 110, respectively. As shown in FIGS. 2 (a) and 2 (b), the regeneration fan 110 includes blades 211 fastened to the shaft of the motor 210 in a casing 214 having suction ports 212 and discharge ports 213 opened. By rotating 211, a blowing operation can be performed in which air is sucked from the suction port 212 and blown out from the discharge port 213. As described above, in the assembled state of the main body 101, the suction port 212 is connected to the outlet tube 206 of the condenser 111 via the connection tube 207 provided in the partition plate 203, and the discharge port 213 is connected to the box 204. Will be. 2C, the casing 214 includes a resin member 215 for fixing the motor 210 and a plate-shaped metal member 216 having an opening for the suction port 212. The metal member 216 is formed of the main body 101. In the assembled state, it is arranged so as to face the adsorbent 107 directly . As shown in FIGS. 6A, 6B, and 6C, the metal member 216 is formed by forming a surface facing the adsorbent adjacent to the adsorbent in the assembled state of the main body 101, and adsorbing the metal member 216. It arrange | positions so that it may oppose directly through space, without interposing another member between the materials 107.

Figure 3 is a perspective view showing the detailed structure of the tree butter member 215. As shown in FIG. 3, as the water collecting means 217 for collecting condensed water condensed on the resin member 215, a downward slope is formed toward the lowest point 219 in the water receiving portion 218 provided below the inner surface of the resin member 215. The water droplets condensed on the inner surface of the resin member 215 are guided to the water receiving portion 218 by its own weight, and are collected at the lowest point 219 using a downward gradient. Further, as the contact means 220 for contacting the collected condensed water with the adsorbent 107, a drainage groove that penetrates the contact surface 221 with the metal member 216 from the lowest point 219 of the water receiving portion 218 and communicates with the outside of the casing 214. 222 is formed, and a water storage part 223 for storing condensed water is provided at the lower end of the drainage groove 222. The condensed water collected at the lowest point 219 is drained to the outside of the casing 214 through the drainage groove 222, and the drained water droplets are received by the water storage portion 223 and grown using the surface tension, and are adsorbed by the growth of the water droplets. The material 107 is smoothly contacted. Further, a plurality of protrusions 224 are formed on the inner surface of the resin member 215 for stirring the regenerated air and guiding the main flow toward the metal member 216 side.

Figure 4 (a) (b) is an explanatory diagram showing a flow of regeneration air in Ke pacing 214 in stream line, reproduced by the protrusion 224 formed on the resin member 215 as shown in FIG. 4 (a) It can be confirmed that the main flow of air is close to the metal member 216 which is the heat transfer surface, and further has an effect of diffusing the flow to the metal member 216 which is the heat transfer surface as shown in FIG. I understand that.

Figure 5 is a perspective view showing a structure of attaching the elastic member 225 to the tree butter member 215, as shown in FIG. 5, a connecting member 226 for connecting the elastic member 225 to the outer surface the lower end of the resin member 215 screwed The flat elastic body 215 processed with fluoro rubber is attached to the connecting member 226 in the direction of the adsorbent 107.

FIG 6 (a) (b) ( c) is a simplified longitudinal sectional view showing the positional relationship between the adsorbent 107 at the time of assembling the main body 101 of the tree butter member 215 and the elastic member 225, FIG. 6 (a ), The casing 214 is arranged in the water storage part 223 of the contact means 220 formed on the resin member 215 so that the distance from the adsorbent 107 (arrow A in the figure) is the shortest, and further the elastic body 225. And the adsorbent 107 (arrow B in the figure) are provided so as to be shorter than the interval between the water reservoir 223 and the adsorbent 107. Here, if the distance of the arrow A is 2 mm or less, even if the main body 101 of the dehumidifying device is tilted, the condensed water droplets will not slide down from the water storage unit 223, and can be in contact with the adsorbent 107 with certainty. . In addition, the distance of the arrow B at that time is as close to 0 mm as possible, and as shown in FIG. 6B, the assembly is bad and the distance of the arrow A is 2 mm or more, and the condensed water droplets slide down from the water storage part 223. However, it can be received by the elastic body 225 and brought into contact with the adsorbent 107 again. Moreover, as shown in FIG.6 (c), when the distance of the arrow A becomes less than 2 mm by an assembly condition, the elastic body 225 and the adsorbent 107 will contact, but the surplus contacted is elastic. Since it is absorbed by the deformation of the body 225, the adsorbent 107 is not stressed and can be prevented from being damaged. Further, since the elastic body 225 is made of fluororubber, the wear of the elastic body 225 can be suppressed.

FIGS. 7A, 7B, and 7C are perspective views showing a shape pattern of the metal member 216 used in the dehumidifying apparatus of this embodiment. The metal member 216 shown in FIG. 7A has a flat plate shape, and the metal member 216 shown in FIGS. 7B and 7C has a convex portion 227 formed by drawing. When assembling the main body 101, any of the metal members 216 is disposed directly opposite the moisture absorbing portion 104 of the adsorbent 107, and has an effect of transferring heat to the regenerated air in the casing 214 via the metal member 216 itself. Accordingly, the material of the metal member 216 is preferably a material having high thermal conductivity and further subjected to rust prevention processing in order to suppress the generation of rust caused by high-humidity regenerated air. For example, a stainless steel plate or a rust-proof iron plate and aluminum A plate can be used. Then, if the convex portion 227 is formed in an oval shape as shown in FIG. 7B or the convex portion 227 protrudes in a hemispherical shape as shown in FIG. 7C, the heat transfer area is increased and heat is transferred. The amount can be increased. Furthermore, in assembling with the resin member 215, if the protrusions 224 and the protrusions 227 are arranged so as not to overlap with each other, the diffusion of the regenerated air is promoted and the heat transfer surface of the metal member 216 is utilized more effectively. Can do.

FIG. 8 is a longitudinal sectional view showing the state of assembly of the adsorbent 107, the regeneration fan 110, and the box 204 to the partition plate 203 of this embodiment from the processing fan 109 side. As shown in FIG. The regeneration unit 105 is formed by covering the upper left side with a box 204 containing heating means 106, and a regeneration fan 110 is connected to the right side surface of the box 204 so that the discharge side overlaps the moisture absorption unit 104. Since the adsorbent 107 is rotated in the direction indicated by the arrow A by the driving means 108, the regeneration fan 110 is disposed on the downstream side of the ventilation direction of the moisture absorption section 104 located on the outlet side of the regeneration section 105 in the rotation direction of the adsorbent 107. Will be. Regenerated air that is directed to the discharge port 213 by the rotation of the blades 211 flows in the casing 214 while diffusing the main flow in the direction indicated by the arrow B, and is a flow that is substantially opposite to the rotation direction of the adsorbent 107. It made. The heat is the largest immediately after moving from the regeneration unit 105 to the moisture absorption unit 104, and gradually decreases as the rotation proceeds. Therefore, the regeneration air indicated by the arrow B becomes a counterflow even in the amount of heat transferred through the metal member 216. The temperature is well raised to suppress condensation. In addition, the water storage unit 223 that stores the dew condensation water generated in the casing 214 is located at a point C in the figure, and the dew condensation water droplets grown in the water storage unit 223 are the rotation axis 202 of the adsorbent 107 that is coaxial with the point C in the ventilation direction. It contacts the adjacent moisture absorption part 104. Condensed water droplets that have moved move through the hygroscopic portion 104 as indicated by the arrow D as the adsorbent 107 rotates, and during that time, the adsorbent 107 sufficiently infiltrates and diffuses into the regenerating portion 105. In the regeneration unit 105, the condensed water contact surface of the adsorbent 107 is close to the heating unit 106 and the condensed water droplets infiltrated into the adsorbent 107 are sufficiently dehumidified and dried by directly using the heat of the heating unit 106. Then, it is regenerated to be infiltrated again and returned to the moisture absorption unit 104. The dehumidified condensed water is introduced into the condenser 111, re-condensed and dropped into the tank 209 for processing. In addition, the dew condensation water contact portion of the adsorbent 107 shown at point C is located near the inner periphery of the adsorbent 107 in the vicinity of the rotation shaft 202, so that it does not affect the amount of moisture absorbed by the indoor air. Since the vicinity of 202 is heated at a relatively low temperature, the adsorbent 107 does not deteriorate due to continuous water heating.

  With the above-described configuration, the dehumidifying device of the present embodiment can suppress the amount of condensed water generated in the regeneration fan 110 within 2 cc / hour, and further reduces the total amount of the condensed water generated without staying in the regeneration fan 110. The adsorbent 107 is infiltrated and processed to maintain a predetermined air volume of the regeneration fan 110 and to ensure a stable dehumidification amount.

  As the adsorbent 107 used in this embodiment, when the adsorbent 107 contains a relatively large amount of moisture, when moisture having a relatively low humidity, for example, heated regeneration air passes, moisture is released into the passing air. It is only necessary to have a property of absorbing moisture in the passing air when air that is relatively humid when the adsorbent 107 is relatively dry, for example, indoor air passes, such as ceramic fibers. In addition, inorganic fibers such as glass fiber, or flat paper made by mixing these inorganic fibers and pulp and corrugated paper are laminated and rolled up to form a disk, such as zeolite, silica gel, activated carbon, etc. It is possible to use a material carrying one or more adsorbent materials.

  Further, as the driving means 108 for rotating the adsorbent 107, an AC inductor motor may be used. If the gear is fastened to the shaft of the motor and meshed with the gear provided on the outer periphery of the adsorbent 107, it can be easily rotated. It can be driven. If the rotational speed of the adsorbent 107 is adjusted from 20 to 40 revolutions per hour, adsorption and desorption can be executed in a balanced manner.

Further, as the heating means 106 for heating the regeneration unit, for example, an electric heater such as a nichrome heater, a ceramic heater, a sheathed heater, or a radiant heater may be used. However, it is also possible to use a heat exchanger in which a high-temperature fluid flows. As the high-temperature fluid flowing inside the heat exchanger, a hot water boiler, a CO ₂ heat pump water heater, hot water using a cogeneration exhaust heat or the like as a heat source, or a refrigerant such as R410A or CO2 using a direct expansion heat pump as a heat source is used. It ’s fine.

The simple exploded view which shows schematic structure of the dehumidification apparatus in the Example of this invention The perspective view and exploded view showing the detailed configuration of the regeneration fan 110 of the dehumidifier The perspective view which shows the detailed structure of the resin member 215 of a dehumidification apparatus similarly Explanatory drawing which showed the flow of the reproduction | regeneration air in the casing 214 of a dehumidifier by the flow line similarly The perspective view which shows the structure which attached the elastic body 225 to the resin member 215 of the dehumidification apparatus similarly A simplified longitudinal sectional view showing the positional relationship between the resin member 215 of the dehumidifier and the adsorbent 107 when the main body 101 of the elastic body 225 is assembled. The perspective view which shows the shape pattern of the metal member 216 used for the same dehumidifier The longitudinal sectional view which showed the assembly | attachment state to the partition plate 203 of the adsorbent 107 of the dehumidifier, the reproduction | regeneration fan 110, and the box 204 from the process fan 109 side. A simple cross-sectional view showing the configuration of a dehumidifying device that circulates air used for conventional regeneration and collects it as condensed water

Explanation of symbols

DESCRIPTION OF SYMBOLS 104 Moisture absorption part 105 Regenerating part 106 Heating means 107 Adsorbent 108 Driving means 109 Processing fan 110 Reproducing fan 111 Condenser 112 Circulating air path 202 Rotating shaft 214 Casing 216 Metal member 217 Water collecting means 218 Water receiving part 219 Bottom point 220 Contact Means 222 Drainage groove 223 Water storage part 224 Projection part 225 Elastic body 227 Projection part

Claims (4)

  An adsorbent that absorbs moisture from room air in the hygroscopic section and is dehumidified and regenerated by heating means in the hygroscopic section; and the adsorbent so that the hygroscopic section and the regenerative section are interchanged. Drive means for rotating the material, a processing fan for supplying room air to the moisture absorption part, and a regeneration fan for supplying high-temperature regeneration air to the regeneration part via the heating means. Moisture is mixed with regenerated air, introduced into a condenser, cooled using room air supplied by the processing fan, recovered as condensed water, and the regenerated air cooled and saturated is returned to the regenerating unit. A dehumidifying device that forms a circulating air passage that circulates, wherein the regeneration fan is arranged on the rear side of the regeneration unit in the rotation direction of the adsorbent and on the rear side in the ventilation direction of the moisture absorption unit, and the regeneration Fan outline Forming dehumidifier said direct surface facing the adsorbent casing, characterized in that formed in the metal member. The metal member toward the inside of the casing dehumidifier according to claim 1, wherein forming a plurality of protrusions. The dehumidifying device according to claim 1 or 2, wherein a plurality of protrusions are formed inwardly on a facing surface of the metal member of the casing. The dehumidifying device according to claim 3, wherein the plurality of protrusions formed on the metal member and the plurality of protrusions formed on the opposing surface of the metal member of the casing are arranged so as not to overlap each other.

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