JP2006189210A - Air conditioner - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an air conditioner capable of lowering heat radiation loss, reducing input of a heating means by uniformly heating a humidity absorbing body, and increasing adsorbing and releasing speeds. <P>SOLUTION: This air conditioner comprises the stationary humidity absorbing body 13 for absorbing moisture at least from air, the heating means 14 for heating the stationary humidity absorbing body 13, and an air blowout means for releasing 15 sending the air heated by the heating means 14 to the stationary humidity absorbing body 13, the air sent from the air blowout means for releasing 15 is blown out from a lower portion to an upper portion of the stationary humidity absorbing body 13, and the heating means 14 is mounted at the lower portion of the stationary humidity absorbing body 13. Thus the distribution of wind speed in adsorbing action of the stationary humidity absorbing body 13 can be improved, the adsorbing speed can be increased, and the releasing action can be promoted by the increase of a face wind speed in releasing action. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to an air conditioner having a function of humidifying indoor air.

Conventionally, this type of humidity control device is provided with a heating means above the hygroscopic body, and humidifies the air by blowing air from above the hygroscopic body during the desorption operation (see, for example, Patent Document 1). ). Alternatively, the heating means is disposed on the side surface on the upstream side of the hygroscopic body, and air is humidified by blowing air horizontally on the side surface of the hygroscopic body during the desorption operation (see, for example, Patent Document 2).
Japanese Patent No. 1948308 JP 2001-190925 A

  However, in the configuration in which air is blown downward from above the conventional hygroscopic body, the heating air naturally evaporates and raises a problem that heat dissipation loss is large. Moreover, in the structure which ventilates the said conventional moisture absorption body side surface in a horizontal direction, the heat dissipation loss by the natural vaporization raise of heating air was large, and there existed a subject that the temperature distribution of a moisture absorption body side surface direction was not uniform.

  The present invention solves the above-described conventional problems, and provides an air conditioner that reduces heat dissipation loss, uniformly heats the hygroscopic body, reduces the input of the heating means, and increases the adsorption and desorption rates. The purpose is to provide.

  In order to solve the above-described conventional problems, an air conditioner of the present invention comprises at least a stationary moisture absorber that adsorbs moisture from the air, a heating unit that heats the stationary moisture absorber, and a heating unit that heats the stationary moisture absorber. A desorption blower for sending the generated air to the stationary moisture absorber, and the air generated by the desorption fan is blown upward from below the stationary moisture absorber. In addition, the heating means is an air conditioner configured to be disposed below the stationary moisture absorber.

  A high temperature air heated by the heating means is provided by providing a heating means substantially vertically below the stationary hygroscopic body, and blowing air from a substantially vertical lower side of the stationary hygroscopic body to a substantially vertical upper direction during the desorption operation, and The high-temperature, high-humidity air containing the desorbed moisture is blown upwards of the stationary hygroscopic body, and is naturally evaporated to reduce heat dissipation loss and uniformly heat the hygroscopic body in the horizontal direction. Desorption efficiency can be increased.

  The present invention provides an air conditioner that can reduce heat dissipation loss, uniformly heat the hygroscopic body in the horizontal direction, reduce the input of the heating means, and increase the adsorption and desorption rates.

  According to a first aspect of the present invention, there is provided a stationary hygroscopic body that adsorbs moisture from at least air, a heating unit that heats the stationary hygroscopic body, and air that is heated by the heating unit to send to the stationary hygroscopic body The desorption blower means air is blown upward from below the stationary hygroscopic body, and the heating means is provided for the stationary hygroscopic body. The air conditioner is configured to be disposed below.

  A high temperature air heated by the heating means is provided by providing a heating means substantially vertically below the stationary hygroscopic body, and blowing air from a substantially vertical lower side of the stationary hygroscopic body to a substantially vertical upper direction during the desorption operation, and The high-temperature, high-humidity air containing the desorbed moisture is blown upwards of the stationary hygroscopic body, and is naturally evaporated to reduce heat dissipation loss and uniformly heat the hygroscopic body in the horizontal direction. Desorption efficiency can be increased.

  According to a second aspect of the present invention, the static moisture absorber is divided into a plurality of parts, and control is performed such that when any static moisture absorber is desorbing, another stationary moisture absorber performs the adsorption operation. Therefore, the input of the heating means can be reduced, and the suction air blowing means during the suction operation can be reduced in noise. Further, by dividing the hygroscopic body into a plurality of parts and reducing the size of the respective hygroscopic bodies, this improves the wind speed distribution during the adsorption operation and increases the surface wind speed during the desorption operation.

  According to the third aspect of the invention, the entire surface of the hygroscopic body can be heated uniformly by making the shape of the heating means planar, and can be made compact.

  According to a fourth aspect of the present invention, when the shape of the heating means is a mesh shape, the temperature of the heating means can be raised by passing air through the fine space formed by the mesh from below the heating means to the upper side during the desorption operation. Therefore, the heat exchange efficiency can be increased.

  In the fifth aspect of the present invention, the heating means has a plurality of openings, so that the temperature of the heating means can be raised by passing air through a small space formed by the openings from below the heating means during the desorption operation. Therefore, heat exchange efficiency can be increased.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that the present invention is not limited to the embodiment.

(Embodiment 1)
FIG. 1 shows a cross-sectional configuration diagram of an air conditioner according to a first embodiment of the present invention.

  In FIG. 1, the air conditioner includes an outdoor unit 1 disposed outside and an indoor unit 2 disposed indoors. The indoor unit 2 includes an indoor heat exchanger 3, an indoor fan (not shown), and a humidified air supply path 4. The outdoor unit 1 includes an outdoor heat exchange unit 5 and a humidification unit 6. In the outdoor heat exchange unit 5, a compressor 7, a four-way valve 8, an outdoor heat exchanger 9, an expansion valve 10, and an outdoor fan 11 are arranged. The compressor 7, the four-way valve 8, the indoor heat exchanger 3, the expansion valve 10, and the outdoor heat exchanger 9 are connected by a refrigerant pipe 12 to form a refrigerant circuit through which the refrigerant circulates. Switching between cooling operation and heating operation. During the heating operation, the high-temperature gas refrigerant discharged from the compressor 7 is sent to the indoor heat exchanger 3 via the four-way valve 8, and the condensed high-pressure liquid refrigerant is decompressed via the expansion valve 10 to be the outdoor heat exchanger. 9 and returned to the compressor 7 through the four-way valve 8.

  The humidifying unit 6 is provided with a stationary hygroscopic body 13 and a desorption heater 14. The hygroscopic body 13 is generally classified into a stationary type and a rotary type. In the stationary type, the hygroscopic body 13 is fixed and arranged to adsorb moisture contained in the air during the adsorption operation, and the desorption heater 14 heats the hygroscopic body 13 during the desorption operation and is adsorbed during the adsorption operation. To remove moisture. On the other hand, in the rotary type, the moisture absorber 13 rotates and alternately passes through the adsorption unit and the desorption unit. The adsorption unit adsorbs moisture contained in the air, and the desorption unit is heated by the desorption heater 14. When the air passes, the moisture adsorbed by the adsorption unit is desorbed.

In the present application, a stationary hygroscopic body 13 is used, and the hygroscopic body 13 is configured to carry a hygroscopic material such as zeolite or silica gel. A suction side of a desorption fan 15 which is a desorption fan means is disposed above (on the downstream side) the hygroscopic body 13, and a humidified air supply path 4 is provided on the discharge side of the desorption fan 15. Below the moisture absorber 13 (upstream side), an intake port 16 for sucking outdoor air is arranged. Further, an adsorption fan 17 and an exhaust port 18 which are suction air blowing means are arranged on the downstream side of the moisture absorbent 13.

  About the air conditioner comprised as mentioned above, the operation | movement and an effect | action are demonstrated below.

  FIG. 2 shows a perspective configuration diagram of the stationary moisture absorber and the heating means in the first embodiment of the present invention. Moreover, FIG. 3 shows the humidification unit perspective block diagram in the 1st Embodiment of this invention.

  In FIG. 2, the stationary hygroscopic body 13 is divided into two in the vertical direction, and desorption heaters 14a and 14b are provided below the hygroscopic bodies 13a and 13b, respectively.

  In FIG. 3, the hygroscopic body 13 a adsorbs moisture contained in the outdoor air flowing in from the air inlet 16 during the adsorption operation (adsorption path a). The air in which moisture is adsorbed by the hygroscopic body 13 a is discharged from the exhaust port 18 to the outside by the adsorption fan 17. At the same time, the hygroscopic body 13b performs a desorption operation (desorption path b), the outdoor air is heated by the desorption heater 14b to become high temperature air, and the desorption fan 15 causes the high temperature air from below to above the hygroscopic body 13b. By passing the water, the water adsorbed during the adsorption operation is desorbed from the hygroscopic body 13b. The air that has passed through the hygroscopic body 13b becomes high-temperature and high-humidity air containing desorbed water, naturally evaporates upwards of the hygroscopic body 13b, and is introduced into the humidified air supply path 4 by the desorption fan 15. Further, the hygroscopic body 13a starts the desorption operation after the adsorption operation ends, and the hygroscopic body 13b starts the adsorption operation after the desorption operation ends. The humidified air supply path 4 is insulated so that high-temperature and high-humidity air passing through the inside is cooled and moisture is not condensed.

  As described above, in the present embodiment, the stationary hygroscopic body 13 is divided in the vertical direction, and the desorption heaters 14a and 14b are respectively provided below the hygroscopic bodies 13a and 13b. By blowing air from below the hygroscopic body 13a or 13b by the fan 15, the high-temperature air heated by the desorption heater 14a or 14b and the high-temperature high-humidity air containing the desorbed water are absorbed by the hygroscopic body 13a. Alternatively, since the air is blown upward and the natural vaporization rises, the heat dissipation loss can be reduced, and the horizontal direction of the hygroscopic body 13a or 13b can be uniformly heated to increase the desorption efficiency.

  Furthermore, by dividing the hygroscopic body 13 into the hygroscopic bodies 13a and 13b and reducing the size of the hygroscopic body 13, the wind speed distribution during the adsorption operation is improved and the adsorption speed is increased in the hygroscopic bodies 13a and 13b. In addition, the surface wind speed at the time of the detachment operation is increased, whereby the detachment action can be promoted.

  In this embodiment, the desorption heater is controlled by controlling the hygroscopic body 13b to perform the adsorption operation when the hygroscopic body 13a is desorbing, and to perform the desorption operation of the hygroscopic body 13b when the hygroscopic body 13a is performing the adsorption operation. The input of 14a and 14b can be reduced, and the noise of the suction fan 17 during the suction operation can be reduced.

  In the present embodiment, the desorption heater 14 is a planar heater. The planar heater is, for example, a heater in which a metal foil is sandwiched between insulators and has a thickness of about 5 mm. Since the planar heater can be provided on the entire surface below the moisture absorber 13, the entire surface of the moisture absorber 13 can be uniformly heated. it can. Furthermore, since the thickness is thin, it can be made compact.

  In the present embodiment, the desorption heater 14 is a mesh heater. The mesh heater is a heater having, for example, SUS304, a wire diameter of 0.1 mm, and a mesh number of 50 mesh. For example, during the detachment operation, air is passed through the fine space formed by the mesh from below the mesh heater. Therefore, the heat exchange efficiency can be increased.

  In the present embodiment, the desorption heater 14 is a planar heater provided with an opening. The planar heater provided with the opening is, for example, a heater in which a metal foil is sandwiched between insulators and an opening having a diameter of 3 mm and a center distance of 5 mm is provided over the entire surface. Since the air can be passed through the small space formed by the opening from the lower side to the upper side to raise the temperature of the heating, the heat exchange efficiency can be increased.

Sectional block diagram of the air conditioner according to Embodiment 1 of the present invention. Perspective configuration diagram of the stationary moisture absorber and heating means Perspective configuration diagram of the humidification unit

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Outdoor unit 2 Indoor unit 3 Indoor heat exchanger 4 Humidification air supply path 5 Outdoor heat exchange unit 6 Humidification unit 7 Compressor 8 Four-way valve 9 Outdoor heat exchanger 10 Expansion valve 11 Outdoor fan 12 Refrigerant piping 13 Hygroscopic body 13a Hygroscopic body 13b Hygroscopic body 14 Desorption heater 14a Desorption heater 14b Desorption heater 15 Desorption fan 16 Intake port 17 Adsorption fan 18 Exhaust port

Claims (5)

At least a stationary hygroscopic body that adsorbs moisture from the air, a heating unit that heats the stationary hygroscopic body, and a blowing unit for desorption for sending air heated by the heating unit to the stationary hygroscopic body The air generated by the desorption air blowing means is blown upward from below the stationary moisture absorber, and the heating means is disposed below the stationary moisture absorber. An air conditioner with a configuration. 2. The stationary hygroscopic body is divided into a plurality of parts, and when any of the stationary hygroscopic bodies is desorbed, the other stationary hygroscopic body is controlled to perform an adsorption operation. Air conditioner. The air conditioner according to claim 1, wherein the heating means is planar. The air conditioner according to claim 1, wherein the heating means has a mesh-shaped portion. The air conditioner according to claim 1, wherein the heating means has a plurality of openings.

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