JPS586178Y2 - dehumidifier - Google Patents

Description

[Detailed description of the invention] The present invention relates to a dehumidifier that dehumidifies the treated air by exchanging moisture between the treated air and the regenerated air using a latent heat exchanger. This is used to preheat the recycled air, making effective use of heat.

Embodiments of the present invention shown in the drawings will be described in detail below.

Reference numeral 1 denotes an apparatus main body which defines a processing air passage 2 and a regeneration air passage 5 inside, and is provided with a rotary latent heat exchanger 7 rotatably extending between the two passages 2.5.

The processing air passage 2 has a suction port 3 and a discharge port 4 indoors to circulate indoor air, which is processing air, as shown by dotted arrows.

In addition, the regeneration air passage 5 has an inlet 6 opened indoors and an exhaust port exposed outdoors, so that indoor air serving as regeneration air is circulated as shown by the solid line arrow.

The circulation of the treated air and the circulation of the regeneration air are carried out by fans 8 and 8, respectively.
and 9, and both fans 8 and 9 are rotated by a motor 10 arranged upstream of the latent heat exchanger 7 in the regeneration air passage 5.

11 is a motor that rotates the latent heat exchanger 7 via a belt 12; 13 is disposed in the regeneration air passage 5 between the latent heat exchanger 7 and the motor 10; This is a heater that uses regenerated air.

A heat pipe 14 has a condensing section 15 disposed between the heater 13 and the motor 10 in the regeneration air passage 5, and an evaporation section 16 between the latent heat exchanger 7 (downstream side) of the regeneration air passage 5 and the fan 9.

As shown in FIG. 2, this heat pipe 14 has a structure in which a perforated material 18 is attached to the inner circumferential wall of a vacuum pipe 17 and a working fluid is sealed inside. is evaporated and flows toward the condensing section 15, and the core section 15
The condensed water returns to the evaporator 16 by capillary action in the porous material 18, and the two-phase flow of this working fluid effectively transfers heat from the evaporator 16 to the condenser 15. It is something.

Next, its effect will be explained.

When the indoor air (processed air) sucked in from the suction port 3 passes through the latent heat exchanger 7, moisture is absorbed by the exchanger 7, and it returns to the room as dry air from the discharge port 4, thereby changing the indoor air. dehumidification is performed.

Incidentally, the amount of moisture absorbed (dehumidified amount) X by the latent heat exchanger 7 changes according to changes in the conditions of the indoor air, as can be seen from the relationship diagram between the indoor air temperature T and the relative humidity W in FIG.

On the other hand, the indoor air (temperature T) sucked in from the suction port 6 is heated by the heater 13 and becomes high temperature (temperature t) regeneration air, which flows into and passes through the latent heat exchanger 7 .

During the passage, the regenerated air becomes moist air by absorbing moisture from the treated air by the latent heat exchanger 7, and part of the heat is consumed as latent heat, causing the temperature of the latent heat exchanger 7 to rise. The temperature will drop to some extent because the heat will be spent on heating.

However, although the temperature of the regenerated air after this action is lower than the temperature t, it is still higher than the indoor air temperature T, and if it is discharged to the outside as it is, there will be a large heat loss.

However, in the present invention, the heat of the regenerated air after the action contributes to the preheating of the regenerated air before reaching the heater 13, that is, before the action, due to the heat conduction action of the heat pipe 14, and therefore the temperature of the regenerated air discharged to the outside decreases. is further reduced, and the heat loss becomes very small.

On the other hand, since the regeneration air before the action is heated by the heater 13 after preheating, the temperature t itself becomes high.As a result, the amount of removed room X, the temperature t of the regeneration air flowing into the latent heat exchanger, and the temperature of the internal air As can be seen from the relationship diagram of relative humidity W, the amount of dehumidification increases.

In addition, 19 in FIG. 1 is a storage tank provided at the most downstream of the regenerated air passage 5, and the regenerated air after acting is transferred to the heat pipe 14.
When dew condensation occurs when heat is removed in the evaporator section 16 and the temperature drops, the condensed water is stored.

The present invention has the above-mentioned configuration, but since the conventional system does not include a heat pipe, the high-temperature regenerated air after the action is directly discharged outside, resulting in a very large heat loss.

However, according to the present invention, the heat of the regeneration air after the operation can be used to preheat the regeneration air before the operation, thereby reducing heat loss and making effective use of the heat.

Furthermore, by preheating the regenerated air, the amount of dehumidification can be increased, and if the same amount of dehumidification as in the past is sufficient, the electric power of the heater can be reduced, which brings about great practical effects.

[Brief explanation of drawings]

Figure 1 is a cross-sectional diagram showing the dehumidifier of the present invention, Figure 2 is a diagram of the principle of the heat pipe, and Figure 3 is the indoor air temperature. The relationship diagram between relative temperature and amount of room removed, Figure 4 shows the amount of dehumidification. FIG. 3 is a relationship diagram between the temperature of regeneration air flowing into a latent heat exchanger and the relative temperature of indoor air. 2: processing air passage, 5: regeneration air passage, 7: latent heat exchanger, 14: heat pipe, 15: condensing section, 16: evaporating section.

Claims (1)

[Scope of utility model registration request] A latent heat exchanger is provided across the processing air passage and the regeneration air passage, and the processing air is dehumidified by the moisture exchange effect of this exchanger. A dehumidifier characterized by being equipped with a heat pipe in which an evaporation part is located downstream of a latent heat exchanger in a passage.