JP2009045555A - Dehumidifying unit and dehumidifier - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a simple dehumidifier which can dehumidify at a low temperature without generating warm air and exhibit great dehumidifying power. <P>SOLUTION: A dehumidifying unit is constituted of a lithium chloride solution 6, a dehumidifying tank 1 for storing the solution, a suction fan 2 for sucking air containing moisture into the dehumidifying tank, an air discharge opening 3 for discharging air dehumidified in the dehumidifying tank to the outside of the dehumidifying tank, a pump 4 for discharging the lithium chloride solution to the outside of the dehumidifying tank, and a duct 7 returning the lithium chloride solution discharged with the pump to the dehumidifying tank while spraying it therein. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a dehumidifying unit using a lithium chloride solution and a dehumidifying device using the same.

  Conventionally, a dehumidifying apparatus has been used in various fields, and a typical example is shown in FIG. 3 and its structure and function will be described below.

  First, the processing air 30 containing moisture is introduced into the dehumidifying device by the fan 23 via the air filter 25, and then passes through a dehumidifying rotor composed of a dehumidifying agent such as silica gel. At this time, the moisture in the processing air Is removed to form dehumidified air 29. The dehumidified air 29 is cooled by a cooler in the apparatus and discharged outside the apparatus.

  On the other hand, the regeneration air 28 for regenerating the dehumidifying agent of the dehumidification rotor 20 is introduced into the apparatus through the air filter 26 and then heated by the regeneration heater 21. The heated regeneration air comes into contact with a dehumidifying agent containing moisture in the dehumidification rotor and is then discharged to the outside by the regeneration fan 24. That is, the dehumidifying agent in the dehumidifying rotor is regenerated by the heat of the regenerated air that has been heated.

  Further, in this dehumidifying apparatus, barge air 31 is separately introduced into the apparatus, and is heated by the regenerating heater 21 together with the regenerating air 28 and used for regenerating the dehumidifying agent.

Further, for example, Patent Document 1 discloses a dehumidifying device for automatically dehumidifying the inside of a closed cabinet, which can reduce manufacturing costs and running costs.
JP 2002-45639 A

  However, in the above dehumidifying apparatus, the regenerated air that passes through the dehumidifying rotor and is discharged to the outside is naturally high-temperature air. When the indoor air temperature rises due to the generated warm air, it is necessary to separately install a temperature adjusting air conditioner, and there is a problem that the cost is increased overall. Further, since the dehumidifying agent such as silica gel is solid, there is a limit to the contact surface, and there are problems such as an increase in equipment size and cost. Furthermore, there has been a problem that the dehumidifying performance is lowered at low temperatures.

  In order to solve the above-described problems, an object of the present invention is to provide a simple dehumidifying device that can perform dehumidification at a low temperature without generating warm air and can exhibit an overwhelming dehumidifying ability.

  In order to achieve the above-mentioned object, the present invention comprises the following configurations (1) to (4).

  (1) A lithium chloride solution, a dehumidification tank for storing the solution, a suction fan for sucking air containing moisture in the dehumidification tank, and the dehumidified tank for dehumidified air in the dehumidification tank An exhaust port for discharging to the outside, a pump for discharging the lithium chloride solution to the outside of the dehumidification tank, and a duct for returning the lithium chloride solution discharged by the pump while spraying it into the dehumidification tank Dehumidification unit characterized by

  (2) A dehumidifying device comprising: the dehumidifying unit according to claim 1; and a chiller unit for cooling the lithium chloride solution discharged from the dehumidifying unit by the pump.

  (3) The dehumidifying device according to (2), wherein the chiller unit includes an evaporator, a compressor, a condenser, and an expansion valve.

  (4) The dehumidifying device according to (2) or (3), wherein the dehumidifying unit is separable from the chiller unit.

  The dehumidifying unit of the present invention utilizes the dehumidifying ability that is characteristic of the lithium chloride solution, and can be dehumidified even at low temperatures by combining a dedicated chiller unit, and can be dehumidified with strong dehumidifying ability. Become.

  Hereinafter, the best mode for carrying out the present invention will be described in detail with reference to examples.

  A dehumidifying unit and a dehumidifying device of the present invention will be described with reference to FIG.

  The dehumidifying device basically includes a dehumidifying unit 5 and a chiller unit 10. In the dehumidifying unit 5, the lithium chloride solution 6 is stored in the dehumidifying tank 1, the fan 2 for sucking air containing moisture into the tank, and the lithium chloride solution 6 stored in the tank. A pump 4 for feeding to the chiller unit and a duct 7 for introducing the lithium chloride solution cooled by the chiller unit while being sprayed into the dehumidifying tank are included.

  On the other hand, the chiller unit 10 has a general vapor compression refrigeration cycle, and includes an evaporator 11, a compressor 13, a condenser 14, and an expansion valve 12.

  The air containing a large amount of moisture comes into contact with the droplets of the lithium chloride solution sprayed in the dehumidification tank, thereby causing dew condensation on the droplet surface and dehumidifying. As a result of the condensation, the dried air is discharged outside the dehumidifying unit. On the other hand, the condensed water droplets are mixed with the lithium chloride solution in the dehumidification tank, and the temperature of this solution rises. The lithium chloride solution whose temperature has risen is sent to the chiller unit 10, cooled, and then returned to the dehumidifying unit 5 again.

  The dehumidifying apparatus of the present invention has a dehumidifying ability in a state where the chiller unit 10 is not coupled, that is, even when the air temperature in the dehumidifying tank is about room temperature. It has the feature that ability can be obtained.

  As described above, the dehumidifying apparatus of the present invention can efficiently and powerfully dehumidify without discharging hot air to the outside as in the conventional dehumidifying apparatus.

  In order to evaluate the dehumidifying ability of the dehumidifying device of the present application, the following experiment was performed. The experimental data at that time is shown in FIG.

  First, the room in which the dehumidifying device of the present invention was installed was humidified with a humidifier. As shown in FIG. 2, the relative humidity of the room reached 90% or more in about 30 minutes (point B). Then, after opening the window, the deadline dehumidifying operation was started again (point C). As can be seen from FIG. 2, it was proved that the humidity could be lowered to the single-digit absolute humidity region in a very short time.

  As described above, if the dehumidifying apparatus of this embodiment is used, it is possible to perform dehumidification at room temperature without generating warm air, and to perform powerful dehumidification in combination with a chiller unit.

It is a block diagram which shows the dehumidification unit and dehumidification apparatus of this invention. It is a figure which shows the experimental result using the dehumidification apparatus of this invention. It is a figure which shows the dehumidification apparatus which concerns on a prior art example.

Explanation of symbols

1 Dehumidification tank 2 Suction fan 3 Discharge port 4 Submersible pump 5 Dehumidification unit 6 Lithium chloride solution 7 Duct 10 Chiller unit 11 Evaporator 12 Expansion valve 13 Compressor 14 Condenser 20 Dehumidification rotor 21 Regenerative heater 22 Cooler 23 Fan 24 Regenerative fan 25 , 26, 27 Air filter 28 Regenerated air 29 Dehumidified air 30 Processed air 31 Barge air

Claims (4)

A lithium chloride solution;
A dehumidification tank for storing the solution;
A suction fan for sucking air containing moisture into the dehumidification tank;
An exhaust port for discharging the air dehumidified in the dehumidification tank to the outside of the dehumidification tank;
A pump for discharging the lithium chloride solution out of the dehumidification tank;
A dehumidifying unit comprising a duct for returning the lithium chloride solution discharged by the pump while being sprayed into the dehumidifying tank. A dehumidifying unit according to claim 1;
A chiller unit for cooling the lithium chloride solution discharged from the dehumidifying unit by the pump;
A dehumidifying device comprising:   The dehumidifying device according to claim 2, wherein the chiller unit includes an evaporator, a compressor, a condenser, and an expansion valve.   The dehumidifying device according to claim 2 or 3, wherein the dehumidifying unit is separable from the chiller unit.

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