JP2009022931A - Dehumidifier - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a dehumidifier which enables the improvement of moisture desorbing performance when low temperature is regenerated and realizes energy saving. <P>SOLUTION: The dehumidifier 110 has a circular moisture adsorbing body 111 formed by processing a mixed paper and adsorbs the moisture of air which passes through a moisture adsorbing area (124) and discharges moisture to air which passes through a moisture discharging area (134) by circulatingly moving the moisture adsorbing body 111 between the partitioned moisture adsorbing area (124) and the moisture discharging area (134). The mixed paper is formed by paper-making a raw material which contains activated carbon fiber or activated carbon powder with a rate of ≥40% by mass and ≤70% by mass and has a weight of ≤150 g per 1 m<SP>2</SP>. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a dehumidifier, and more particularly to a dehumidifier constituting a dehumidifying air conditioner applied to a store such as a supermarket, a convenience store, a shopping center, or a facility such as a semiconductor-related work place.

  2. Description of the Related Art Conventionally, as a dehumidifying air conditioner applied to a store such as a supermarket, a convenience store, a shopping center, or a facility such as a semiconductor-related work place, a device including a dehumidifier, a dehumidifying processing unit, and a regeneration processing unit is known. .

  The dehumidifier is referred to as a dehumidification rotor, and is configured such that a columnar moisture adsorbent is provided so as to be rotatable around an axis centered on the central axis. The dehumidifier rotates in such a manner that a part of the moisture adsorbent alternately passes between the partitioned moisture adsorption region and the moisture release region. When the moisture adsorbent rotates in this way, the portion located in the moisture adsorption region moves to the moisture release region and then circulates by sequentially repeating the movement to the moisture adsorption region again. Here, the moisture adsorption region and the moisture release region are both predetermined regions constituting an air flow path.

  The dehumidification processing unit takes in air such as outside air, and passes the taken-in air through the moisture adsorption region so that the moisture in the passing air is adsorbed on the moisture adsorber of the dehumidifier and dehumidifies the air. The air that has passed through the adsorption region is introduced into the target room (inside the store or in the facility).

  The regeneration processing unit, for example, takes in air such as outside air, heats the taken-in air with a heater, and passes the heated air through a moisture release region, thereby releasing moisture into the moisture adsorbent of the dehumidifier. The adsorbent is dried, and the air that has passed through the moisture release region is released to the outside.

  The moisture adsorber constituting the dehumidifier is, for example, a mixed paper obtained by mixing inorganic fibers such as ceramic fibers and glass fibers, various binders, etc., and a slurry in which particles having moisture absorption performance such as zeolite and silica gel are blended. What was manufactured by impregnating inside and baking after that is known (for example, refer patent document 1).

Japanese Patent Laid-Open No. 10-272334

  In such a dehumidifier, since zeolite, silica gel, etc. are used as particles having hygroscopic performance, moisture in the air passing through the moisture adsorption region can be adsorbed to some extent, but moisture is good in the moisture release region. In order to release the air, it is necessary to pass air heated to a relatively high temperature of, for example, 100 ° C. or higher with a heater. The moisture desorption performance was not good.

  In view of the above circumstances, an object of the present invention is to provide a dehumidifier that can improve moisture desorption performance even during low-temperature regeneration and can save energy.

In order to achieve the above object, a dehumidifier according to claim 1 of the present invention has a cylindrical moisture adsorbent formed by processing mixed paper, and is provided between a partitioned moisture adsorption region and a moisture release region. In the dehumidifier that adsorbs moisture in the air that passes through the moisture adsorption region by circulating the moisture adsorbent in the desorption device that releases moisture to the air that passes through the moisture release region, the mixed paper is activated carbon It is formed by papermaking a raw material containing fiber or activated carbon powder in a proportion of 40% by mass or more and 70% by mass or less, and has a weight of 150 g or less per 1 m ² .

The dehumidifier according to claim 2 of the present invention is characterized in that, in the above-mentioned claim 1, the mixed paper has a weight per 1 m ² of 50 g or more.

  The dehumidifier according to claim 3 of the present invention is the dehumidifier according to claim 1 or 2, wherein the activated carbon fiber or activated carbon powder has a 30 ° C saturated water adsorption amount of 40 mass% or more and 30 ° C. The moisture adsorption amount in the range of 35 to 55% relative humidity in the moisture adsorption isotherm is 30% by mass or more.

  Moreover, the dehumidifier according to claim 4 of the present invention is characterized in that, in any one of claims 1 to 3 described above, the activated carbon fiber or activated carbon powder is subjected to a hydrophilic treatment. To do.

According to the present invention, the moisture adsorbent is formed by papermaking a raw material containing activated carbon fibers or activated carbon powder in a proportion of 40% by mass or more and 70% by mass or less, and the weight per m ² is 150 g or less. Since the mixed paper is processed, it is possible to release moisture even when the air passing through the moisture releasing region is at a relatively low temperature, thereby heating the air more than necessary. There is no. Therefore, even when the air passing through the moisture release region is reproduced at a low temperature of, for example, 60 ° C. or less, the moisture desorption performance can be improved, and energy saving can be achieved.

  Hereinafter, preferred embodiments of a dehumidifier according to the present invention will be described in detail with reference to the accompanying drawings. In addition, the dehumidifier which comprises the dehumidification air conditioning apparatus applied to stores, such as a supermarket, a convenience store, a shopping center, is demonstrated, for example.

  FIG. 1 schematically shows a configuration of a dehumidifying air conditioner including a dehumidifier according to an embodiment of the present invention. The dehumidifying air-conditioning apparatus 100 illustrated here performs ventilation, dehumidification, and air conditioning by introducing outside air into the store 1. The store 1 is provided with an air conditioner indoor unit 2 and a freezer / refrigerator 6.

  The air conditioning indoor unit 2 is connected to the compressor 3, the condenser 4, the expansion valve 5, and the refrigerant pipe to form a refrigerant circulation circuit L1. The compressor 3 compresses the refrigerant into a high temperature and high pressure state. The condenser 4 condenses and liquefies the refrigerant supplied from the compressor 3, that is, the refrigerant compressed to a high temperature and high pressure state by the compressor 3. The expansion valve 5 adiabatically expands the refrigerant supplied from the condenser 4, that is, the refrigerant condensed in the condenser 4, that is, adjusts the refrigerant to a low temperature and low pressure state by reducing the pressure. The air conditioning indoor unit 2 evaporates the refrigerant adiabatically expanded to a low temperature and low pressure state by the expansion valve 5. As the refrigerant evaporates, the surrounding area of the air conditioner indoor unit 2 is cooled by removing heat.

  In such a refrigerant circulation circuit L <b> 1, the refrigerant compressed by the compressor 3 is condensed by the condenser 4 and then reaches the expansion valve 5. The refrigerant reaching the expansion valve 5 is decompressed by the expansion valve 5 and adiabatically expands, becomes a low-temperature and low-pressure state, and is sent to the air conditioning indoor unit 2. The refrigerant sent to the air conditioning indoor unit 2 evaporates by applying heat from the peripheral area of the air conditioning indoor unit 2, and then returns to the compressor 3. That is, the refrigerant circulates through the refrigerant circulation circuit L1. As the refrigerant circulates in the refrigerant circulation circuit L1, the peripheral area of the air conditioning indoor unit 2, that is, the internal atmosphere of the store 1, is deprived of heat and cooled by evaporation of the refrigerant.

  The freezer / refrigerator 6 is, for example, a showcase (not shown), and is used for cooling goods and the like displayed inside. The refrigerator / freezer 6 includes an evaporator 7, and the evaporator 7 is connected to the compressor 8, the condenser 9, and the expansion valve 10 through a refrigerant pipe to form a refrigerant circulation circuit L 2. . The compressor 8 compresses the refrigerant into a high temperature and high pressure state. The condenser 9 condenses and liquefies the refrigerant supplied from the compressor 8, that is, the refrigerant compressed to a high temperature and high pressure state by the compressor 8. The expansion valve 10 adiabatically expands the refrigerant supplied from the condenser 9, that is, the refrigerant condensed in the condenser 9, that is, adjusts the refrigerant to a low-temperature and low-pressure state by reducing the pressure. The evaporator 7 evaporates the refrigerant adiabatically expanded to a low temperature and low pressure state by the expansion valve 10 in a predetermined flow path. As the refrigerant evaporates, the goods and the like displayed inside the refrigerator / freezer 6 are deprived of heat and cooled.

  In such a refrigerant circulation circuit L2, the refrigerant compressed by the compressor 8 is condensed by the condenser 9, and then reaches the expansion valve 10. The refrigerant that has reached the expansion valve 10 is decompressed by the expansion valve 10, adiabatically expands, becomes a low-temperature and low-pressure state, and is sent to the evaporator 7. The refrigerant sent to the evaporator 7 is evaporated by receiving heat from the peripheral area of the evaporator 7, and then returns to the compressor 8. That is, the refrigerant circulates through the refrigerant circulation circuit L2. As the refrigerant circulates through the refrigerant circulation circuit L2, the peripheral area of the evaporator 7, that is, the displayed product or the like, is cooled by taking heat away from the evaporation of the refrigerant.

  The dehumidifying air conditioner 100 applied to such a store 1 includes a dehumidifier 110, a dehumidifying processing unit 120, and a regeneration processing unit 130.

  The dehumidifier 110 is referred to as a dehumidification rotor, and includes a columnar moisture adsorbent 111 that is provided so as to be rotatable around an axis centered on the central axis. In the dehumidifier 110, the moisture adsorber 111 circulates between the partitioned moisture adsorption region 124 and the moisture release region 134, that is, the moisture adsorbent between the partitioned moisture adsorption region 124 and the moisture release region 134. Rotates in such a manner that part of 111 passes alternately. When the moisture adsorbent 111 rotates in this way, the portion located in the moisture adsorption region 124 moves to the moisture release region 134 and then moves to the moisture adsorption region 124 again in order. Details of the moisture adsorbent 111 will be described later.

  The dehumidification processing unit 120 is for dehumidifying the introduced outside air (process air) and introducing it into the store 1, and has a dehumidification processing path 120a.

  The dehumidification processing path 120 a is a path for guiding the processing air taken from the processing air intake port 121 to the inside of the store 1 through the processing air discharge port 122, and includes the cooler 123, the moisture adsorption region 124, and the dehumidification processing fan 125. Are provided in order from the processing air inlet 121 side.

  The cooler 123 cools the processing air taken in through the processing air inlet 121. The cooler 123 is connected to the compressor 126, the condenser 127, and the electronic expansion valve 128 through a refrigerant pipe to form a refrigerant circulation circuit L3. More specifically, the compressor 126 compresses the refrigerant into a high temperature and high pressure state. The condenser 127 condenses (heatsinks) the refrigerant supplied from the compressor 126, that is, the refrigerant compressed to a high temperature and high pressure state by the compressor 126. The electronic expansion valve 128 adiabatically expands the refrigerant supplied from the condenser 127, that is, the refrigerant condensed by the condenser 127, that is, depressurizes the refrigerant to adjust it to a low temperature and low pressure state. The cooler 123 evaporates the refrigerant adiabatically expanded to a low temperature and low pressure state by the electronic expansion valve 128. As the refrigerant evaporates, the processing air passing around the cooler 123 is cooled by removing heat. The refrigerant circulation circuit L3 is formed by sequentially connecting the compressor 126, the condenser 127, the electronic expansion valve 128, and the cooler 123 through the refrigerant pipe.

  The moisture adsorption region 124 is a predetermined region in which the moisture adsorbent 111 adsorbs moisture of the processing air that passes therethrough. As a result, the process air cooled by the cooler 123 is dehumidified by the moisture adsorption region 124.

  The dehumidification processing fan 125 serves as a blowing source for introducing processing air into the store 1. Therefore, the processing air blown by the dehumidification processing fan 125 is supplied into the store 1 through the processing air discharge port 122.

  A return air intake 129 is provided in the dehumidification processing path 120a. The return air inlet 129 is provided between the moisture adsorption region 124 on the downstream side of the moisture adsorption region 124 and the dehumidification processing fan 125, and takes in the air inside the store 1 through the return air introduction route R1. Is the opening. This return air introduction route R1 is a route for taking in the air inside the store 1 through an air intake (not shown) provided in the store 1 and transferring it to the return air intake 129.

  The regeneration processing unit 130 heats the introduced outside air (regeneration air) and passes it through the moisture release region 134, thereby releasing moisture to the moisture adsorbent 111 constituting the dehumidifier 110. A processing path 130a is provided.

  The regeneration processing path 130a is provided in parallel with the dehumidification processing path 120a, and is a path for sending the regeneration air taken in from the regeneration air intake 131 to the outside through the regeneration air discharge port 132. A moisture release region 134 and a regeneration fan 135 are provided in this order from the regeneration air intake 131 side.

  The heater 133 heats the regeneration air taken in through the regeneration air inlet 131. The heater 133 is connected to a heat source 136 and a pump 137 through a pipe, thereby forming a heat medium circulation circuit L4 in which a heat medium such as hot water circulates. The heating source 136 heats the hot water flowing through the heat medium circulation circuit L4. The pump 137 serves as a power source for hot water to flow through the heat medium circulation circuit L4. When the hot water heated by the heating source 136 flows through the heat medium circulation circuit L4 by the action of the pump 137, the regenerated air passing around the heater 133 is heated.

  The moisture release region 134 is a predetermined region for releasing moisture from the moisture adsorbent 111 and drying it when the regenerated air heated by the heater 133 passes. The regeneration fan 135 sends the regeneration air that has passed through the moisture release region 134 to the outside through the regeneration air discharge port 132, and serves as a blower source that blows the regeneration air.

  Next, the moisture adsorbent 111 constituting the dehumidifier 110 will be described. FIG. 2 is an enlarged view of a part of the main part (moisture adsorbent) of the dehumidifier shown in FIG. As shown in FIG. 2, the moisture adsorbent 111 has a columnar shape as described above, and has a corrugated honeycomb structure, that is, a corrugated cardboard laminate structure. Such a moisture adsorbent 111 is formed by corrugating the mixed paper.

  The mixed paper contains activated carbon fiber or activated carbon powder. More specifically, the mixed paper contains activated carbon fiber or activated carbon powder, organic fiber such as wood pulp, and other desired binder resin or water. It is formed by papermaking a slurry obtained by mixing. The content ratio of the activated carbon fiber or the activated carbon powder in the solid content of the slurry is 40% by mass or more and 70% by mass or less. When the content ratio of the activated carbon fiber or the activated carbon powder in the solid content of the slurry is less than 40% by mass, it is not possible to obtain the moisture adsorbent 111 having a sufficient moisture adsorption capacity, while the activated carbon fiber in the solid content of the slurry. Or when the content rate of activated carbon powder exceeds 70 mass%, the paper quality of the mixed paper formed will become hard, a crack etc. will arise at the time of corrugation, and the favorable water | moisture-content adsorption body 111 cannot be obtained.

In addition, the mixed paper has a weight per square meter, that is, a weight per 1 m ² of 150 g or less, and more specifically, preferably 50 g or more and 150 g or less. When the rice tsubo is in this range, the thickness can be set to 0.25 to 0.40 mm, and the moisture adsorbent 111 obtained by corrugation or the like is air (treated air and regenerated air). ) With a large contact area. In other words, the cell size of the corrugated honeycomb is sufficiently small.

  Here, when the activated carbon fiber is used for mixed paper, it is preferably a short fiber having a diameter of 100 μm or less and a length of 10 mm or less from the viewpoint of ease of papermaking, while the activated carbon powder is mixed paper. In the case of being used, it is preferable that the average particle diameter is 100 μm or less from the viewpoint of easy papermaking.

  The activated carbon fiber or activated carbon powder has a 30 ° C. saturated moisture adsorption amount of 40% by mass or more, and a moisture adsorption amount in the range of 35 to 55% RH in the moisture adsorption isotherm at 30 ° C. % Or more is preferable. Thus, when the 30 degreeC saturated moisture adsorption amount is 40 mass%, the moisture adsorption body 111 obtained from the mixed paper containing the said activated carbon fiber or activated carbon powder will have favorable moisture absorption performance. In general, when the regenerated air is heated in the range of 40 ° C. or more and 60 ° C. or less with the heater 133. Since it is known that the relative humidity of the regeneration air is 25 to 35% RH, the moisture adsorption amount within the range of 35 to 55% RH in the moisture adsorption isotherm at 30 ° C. is 30% by mass. By ensuring the above size, the moisture adsorbent 111 obtained from the mixed paper containing the activated carbon fiber or activated carbon powder has a moisture absorption amount of regenerated air at a low relative humidity and a humidity range of the treated air. The difference from the moisture absorption amount is sufficiently large.

  Further, the activated carbon fiber or the activated carbon powder is preferably subjected to a hydrophilic treatment. As the hydrophilization treatment, activated carbon fiber or activated carbon powder is immersed in a solution of sodium hydroxide (NaOH: caustic soda) or potassium hydroxide (KOH: caustic potash) and boiled. There are a method of exposing to air for a short time, and a method of immersing in a low concentration lithium chloride aqueous solution. By performing the hydrophilization treatment in this way, the activated carbon fiber or the activated carbon powder has good adsorption performance.

  The dehumidifying air conditioner 100 having the above configuration ventilates and dehumidifies the interior of the store 1 as follows.

  When an operation command is issued and each of the compressor 126, the dehumidification processing fan 125, the heating source 136, the pump 137, and the regeneration fan 135 is driven, the moisture adsorbent 111 rotates and the dehumidification processing fan 125 and the regeneration fan 135 are driven. To do. The refrigerant compressed by the compressor 126 circulates in the refrigerant circulation circuit L3, and the hot water heated by the heating source 136 flows through the heat medium circulation circuit L4 by the action of the pump 137.

  By driving the dehumidification processing fan 125, processing air is taken in through the processing air inlet 121, and the processing air thus taken reaches the cooler 123. The processing air that has reached the cooler 123 is cooled by evaporating the refrigerant flowing inside the cooler 123 and reaches the moisture adsorption region 124. On the other hand, by driving the dehumidifying fan 125, the indoor air inside the store 1 is taken in through the air intake, and the taken indoor air passes through the return air introduction path R1 and reaches the return air intake 129.

  In the moisture adsorption region 124, the process air cooled by the cooler 123, that is, the humid air, is adsorbed by passing through the moisture adsorbent 111, thereby reducing the humidity of the process air. That is, the processing air is dehumidified. Further, the moisture adsorbed on the portion corresponding to the moisture adsorption region 124 of the moisture adsorbent 111 moves from the moisture adsorption region 124 to the moisture release region 134 as the moisture adsorbent 111 rotates.

  The processing air dehumidified in the moisture adsorption region 124 flows downstream by driving the dehumidification processing fan 125, and is mixed and diffused by mixing with room air passing through the return air introduction path R 1 and reaching the return air inlet 129. After being adjusted to a predetermined temperature and humidity, mixed processing air is supplied into the store 1 through the processing air discharge port 122.

  On the other hand, when the regeneration fan 135 is driven, the regeneration air is taken in through the regeneration air intake 131, and the introduced regeneration air reaches the heater 133. The regenerated air that has reached the heater 133 is heated by hot water flowing inside the heater 133 to become high-temperature air, and reaches the moisture discharge region 134.

  When the regeneration air heated by the heater 133 passes through the moisture release region 134, moisture is released from the corresponding portion of the moisture adsorbent 111, and the humidity of the regeneration air increases. Thereafter, the regeneration air that has passed through the moisture release region 134 is sent to the outside through the regeneration air discharge port 132 by driving the regeneration fan 135.

  The portion of the moisture adsorbent 111 corresponding to the moisture release region 134 is dried due to the release of moisture, and the temperature rises. The corresponding portion of the moisture adsorbent 111 that has risen in temperature and dried moves with the rotation of the moisture adsorbent 111 from the moisture release region 134 to the moisture adsorption region 124, and repeats the above-described operation.

  That is, in the dehumidifying air conditioning apparatus 100, the dehumidifying unit 120 cools the introduced processing air with the cooler 123, and allows the moisture adsorbent 111 to adsorb moisture by passing the cooled processing air through the moisture adsorption region 124. The room air inside the store 1 introduced separately through the return air introduction path R1 is mixed with the dehumidified processing air and supplied to the inside of the store 1. In addition, the regeneration processing unit 130 releases the moisture from the moisture adsorbent 111 by heating the regeneration air and passing it through the moisture release region 134.

And, as described above, the moisture adsorbent 111 constituting the dehumidifier 110 is formed by papermaking a raw material (slurry) containing activated carbon fibers or activated carbon powder in a proportion of 40 mass% to 70 mass%, In addition, since it is configured by processing a mixed paper having a weight per 1 m ^{2 of} 150 g or less, it is possible to release moisture at a relatively low temperature of, for example, 60 ° C. or less, and a good moisture absorption rate. It becomes. Therefore, the temperature of the air passing through the moisture release region 134 can be made relatively low while the moisture in the air passing through the moisture adsorption region 124 is favorably adsorbed and dehumidified.

As described above, according to the dehumidifier 110 in the embodiment of the present invention, the moisture adsorbent 111 is a raw material (slurry) containing activated carbon fibers or activated carbon powder in a proportion of 40% by mass to 70% by mass. ), And is formed by processing a mixed paper whose weight per 1 m ² is 150 g or less, so that it is good even when the air passing through the moisture release region 134 is at a relatively low temperature. Moisture can be released, thereby preventing the regeneration air from being heated more than necessary. Therefore, even when the air passing through the moisture release region 134 is reproduced at a low temperature of, for example, 60 ° C. or lower, the moisture desorption performance can be improved, and energy saving can be achieved. In particular, the activated carbon fiber or the activated carbon powder has a 30 ° C. saturated moisture adsorption amount of 40% by mass or more and a moisture adsorption amount in the range of 35 to 55% RH in the moisture adsorption isotherm at 30 ° C. The above-mentioned effect can be surely achieved by being at least mass% and having been subjected to a hydrophilic treatment.

  According to the dehumidifier 110, the moisture adsorbent 111 is formed into a corrugated honeycomb by processing a mixed paper formed by papermaking a slurry containing activated carbon fiber or activated carbon powder. Thus, it is not necessary to bak and manufacture at 500 ° C. or higher, and energy can be saved even in the manufacturing process.

<Preparation of mixed paper>
Activated carbon powder (Kuraray Chemical Co., Ltd.) having a saturated moisture adsorption amount of 30 ° C. or more and a moisture adsorption amount in the range of 35 to 55% RH in the moisture adsorption isotherm at 30 ° C. of 30% by mass or more. The product was hydrophilized and then pulverized with a Nara type pulverizer (manufactured by Nara Machine Co., Ltd.) to 1 to 10 μm. This activated carbon powder, wood pulp (KP pulp) treated with a normal beater or the like as a fiber material for papermaking, organic synthetic fiber pulp (vinylon pulp) for papermaking, glass fiber having a diameter of about 10 μm (Nippon Sheet Glass Co., Ltd.) Made), acrylic polymer flocculant (manufactured by Showa Denko KK), and water to make a slurry, dilute this slurry with a large amount of water and mix paper with a round net paper machine, Mixed papers 1 to 5 were prepared (see FIG. 3). The mixing ratio of the activated carbon powder, wood pulp, vinylon pulp and glass fiber was variously changed as shown in FIG. The tensile strength and crack presence / absence of each of the mixed papers 1 to 5 thus prepared were measured, and the results were shown together in the chart shown in FIG. For the tensile strength, a strip sample having a width of 15 mm was cut out from each of the mixed papers 1 to 5 in the paper making direction, and the breaking strength was measured by pulling at a speed of 1 mm / min. Moreover, the presence or absence of a crack was performed by visually observing the occurrence of cracks by bending the strip sample by hand.

  From the results shown in FIG. 3, it is understood that the mixed paper 4 and the mixed paper 5 in which the content ratio of the activated carbon powder exceeds 70% by mass is smaller in the tensile strength than the mixed papers 1 to 3 and cracks are also generated. Is done.

Example 1
A columnar moisture adsorbent (111) having a corrugated honeycomb structure was produced by processing the mixed paper 1 having a rice basis weight of 50 g / m ² . The moisture adsorbent (111) has a diameter of 300 mm and a width of 200 mm.

Example 2
A columnar moisture adsorbent (111) having a corrugated honeycomb structure was produced by processing the mixed paper 2 having a rice basis weight of 50 g / m ² . The moisture adsorbent (111) has a diameter of 300 mm and a width of 200 mm.

Example 3
A columnar moisture adsorbent (111) having a corrugated honeycomb structure was produced by processing the mixed paper 3 having a rice basis weight of 50 g / m ² . The moisture adsorbent (111) has a diameter of 300 mm and a width of 200 mm.

Example 4
A columnar moisture adsorbent (111) having a corrugated honeycomb structure was produced by processing the mixed paper 1 having a rice basis weight of 100 g / m ² . The moisture adsorbent (111) has a diameter of 300 mm and a width of 200 mm.

Example 5
A columnar moisture adsorbent (111) having a corrugated honeycomb structure was produced by processing the mixed paper 2 having a rice basis weight of 100 g / m ² . The moisture adsorbent (111) has a diameter of 300 mm and a width of 200 mm.

Example 6
A columnar moisture adsorbent (111) having a corrugated honeycomb structure was produced by processing the mixed paper 3 having a rice basis weight of 100 g / m ² . The moisture adsorbent (111) has a diameter of 300 mm and a width of 200 mm.

Comparative example 1
A commercially available silica gel rotor was taken out and a honeycomb-shaped moisture absorbent was machined to produce a moisture adsorbent having a corrugated honeycomb structure. The moisture adsorbent has a diameter of 300 mm and a width of 200 mm.

Comparative example 2
A commercially available zeolite-based rotor was taken out and a honeycomb-shaped hygroscopic material was machined to produce a moisture adsorbent having a corrugated honeycomb structure. The moisture adsorbent has a diameter of 300 mm and a width of 200 mm.

Dehumidifier A having the moisture adsorbent (111) of Example 1, Dehumidifier B having the moisture adsorbent (111) of Example 2, Dehumidifier C having the moisture adsorbent (111) of Example 3, Example Dehumidifier D having 4 moisture adsorbers (111), Dehumidifier E having moisture adsorbers (111) of Example 5, Dehumidifier F having moisture adsorbers (111) of Example 6, and Comparative Example 1 The dehumidification amount of the dehumidifier G having the moisture adsorber and the dehumidifier H having the moisture adsorbent of Comparative Example 2 was measured under the following conditions, and the results shown in FIG. 4 were obtained. Here, the experimental condition is that the flow rate of air passing through the moisture adsorption region is 80 m ³ / h, the temperature of the processing air passing through the moisture adsorption region is 25 ° C., and the absolute humidity of the air is 14 g / kg-DA (Dry Air ), Almost the same amount of regenerated air that passes through the moisture release region is allowed to pass, and the temperature of the regenerated air is set at two levels of 60 ° C. and 45 ° C.

  From the results shown in FIG. 4, the dehumidifiers (g / kg-DA) of the dehumidifiers A to F having the moisture adsorbents (111) of Examples 1 to 6 are the dehumidifiers G of Comparative Examples 1 and 2 and It is clear that the hygroscopic performance is superior to H. In particular, it is understood that the dehumidifiers A to C having a small paper basis of the mixed paper are particularly excellent.

  As described above, the present invention is useful for a dehumidifying air conditioner having functions of ventilation, dehumidification, and air conditioning by introducing outside air into a store such as a supermarket, a convenience store, and a shopping center.

It is the schematic diagram which showed typically the structure of the dehumidification air conditioner provided with the dehumidifier in embodiment of this invention. It is explanatory drawing which expanded and showed a part of principal part (moisture adsorption body) of the dehumidifier in FIG. It is a graph which shows the experimental result of the Example of this invention. It is a graph which shows the experimental result of the Example of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 100 Dehumidification air conditioner 110 Dehumidifier 111 Moisture adsorption body 124 Moisture adsorption area 134 Moisture discharge area

Claims (4)

Air that passes through the moisture adsorption region by circulating the moisture adsorbent between the partitioned moisture adsorption region and the moisture release region, having a cylindrical moisture adsorbent formed by processing mixed paper In a dehumidifier that adsorbs moisture while releasing moisture into the air passing through the moisture release region,
The mixed paper is formed by paper-making a raw material containing activated carbon fibers or activated carbon powder in a proportion of 40% by mass or more and 70% by mass or less, and the weight per 1 m ² is 150 g or less. Dehumidifier characterized by. The dehumidifier according to claim 1, wherein the mixed paper has a weight per 1 m ² of 50 g or more.   The activated carbon fiber or the activated carbon powder has a 30 ° C. saturated moisture adsorption amount of 40% by mass or more and a moisture adsorption amount in the range of 35 to 55% RH in the moisture adsorption isotherm at 30 ° C. It is% or more, The dehumidifier of Claim 1 or Claim 2 characterized by the above-mentioned.   The dehumidifier according to any one of claims 1 to 3, wherein the activated carbon fiber or the activated carbon powder is subjected to a hydrophilic treatment.

Images