JPS623633Y2 - - Google Patents

Description

[Detailed description of the invention] This invention relates to a dehumidifier that removes moisture from indoor humid air, and is suitable for use in IC factories, food factories such as confectionery factories, pharmaceutical factories, and other indoor spaces that require a low-humidity atmosphere. It is used for.

Conventional dehumidifiers have a structure that is a direct application of the refrigeration cycle, and they suck in humid air from the room and touch the surface of a cooler (evaporator) to turn the moisture in the air into water droplets, dehumidifying the air. It was hot.

Therefore, it has almost the same structure as a cooler and simply reduces the wind speed to achieve a dehumidifying effect, so if the temperature of the intake air is high, the dehumidifying effect will be reduced to some extent due to the temperature difference with the cooler. However, it cannot be expected to have a sufficient dehumidifying effect when the room temperature is low due to the cooling effect or in winter, and it was considered impossible to reduce the relative humidity to 60% or less with conventional dehumidifiers.

In addition, as an improvement to the dehumidifier with the conventional structure, a dehumidifier with a structure in which a condenser is arranged to heat the dehumidified air to near room temperature is also known, but heating the air on the discharge side reduces the dehumidification effect. There was little contribution to improvement, and it was still impossible to expect a high dehumidification effect.

This project solves the drawbacks of conventional dehumidifiers as described above, and provides a practical dehumidifier that is highly effective in dehumidifying, maintains the room temperature at a comfortable temperature of 20℃ to 25℃, and is energy-saving. It is something to do.

That is, in the present invention, the in-system condensers 2 and 3, the cooler 4, and the blower 5 are arranged in the air circulation system of the fuselage 1, and the out-of-system condenser 6 and the compressor 7 are arranged outside the air circulation system.
and a liquid receiver 8 are arranged, the internal condensers 2 and 3 and the external condenser 6 are connected in parallel between the outlet side of the compressor 7 and the inlet side of the liquid receiver 8, and a thermos If the temperature is below the set temperature by Tatsuto 9, the internal condenser 2,
A switching structure 1 that operates in such a way that the refrigerant flows into the external condenser 6 when the temperature is higher than the set temperature.
0 is provided, and the humid air flowing in from the suction port 11 is dehumidified with a large temperature difference and condensed in the air distribution system from the suction port 11 to the ventilation port 12 in order from the bottom to the top so that it can be blown as heated dry air. The system is characterized in that a container 2, a cooler 4, an internal condenser 3, and a blower 5 are arranged.

Hereinafter, the present invention will be explained with reference to illustrative embodiments. FIG. 1 is a longitudinal sectional view showing an example of the dehumidifier of the present invention, and FIG. 2 is a front view of the same example.

In the figure, 1 is the machine frame 1, 2, and 3 are the internal condensers, 4 is the cooler, 5 is the blower, 6 is the external condenser,
7 is a compressor, 8 is a liquid receiver, 9 is a thermostat,
11 is an inlet, 12 is an air blower, 13 is an electric motor for the blower, 14 is an accumulator, 15 is a dust removal filter, 16 and 17 are drain pans, and 18 and 19 are drain pipes.

In addition, in one embodiment, the system condensers 2 and 3 and the cooler 4
It is preferable that the dehumidifier be installed in an inclined state, since it can make the dehumidifier more compact and at the same time increase the heat exchange area.

In addition, in one embodiment, the external condenser 6 having a water-cooled structure
By using this, the condenser 6, compressor 7, etc. are placed inside the machine frame 1 to make the device more compact, but equipment outside the air distribution system is placed separately and externally. May be placed.

Further, in one embodiment, the area of the suction port 11 is made four times or more larger than the area of the blower port 12, so that the incoming air passes through the system condensers 2, 3 and the cooler 4 at a slow speed. By doing so, the dehumidification effect is further improved.

Next, Figure 3 is a piping system diagram of equipment used in the dehumidifier of the present invention, where 2 and 3 are internal condensers, 4 is a cooler, 6 is an external condenser, 7 is a compressor, and 8 is a 9 is a thermostat, 10a and 10a are electromagnetic valves which are an example of the switching structure 10, 14 is an accumulator, 20 and 21 are check valves, and 22 is a capillary tube.

Here, the most characteristic configuration is that the internal condensers 2 and 3 and the external condenser 6 are connected in parallel and are operated by switching. This ensures normal operation with the coexisting system condensers 2 and 3.

Therefore, when the dehumidifier of the present invention is installed and operated, the humid air W flowing in from the suction port 11 first becomes hot and humid air due to the heating effect of the internal condenser 2, and then becomes hot and humid air by the cooler 4. The large temperature difference dehumidifies the air and turns it into low-temperature dry air, which is then transferred to the system condenser 3.
The heating effect becomes heated dry air D, and this air D is blown into the room by the blower 5. It dehumidifies the humid air in the room, and also has a drying effect of removing moisture from objects containing moisture by circulating dry air around them.

In other words, since the dehumidifier of the present invention is heated by the system condenser 2 and then dehumidified by the cooler 4, there is a large temperature difference, and the relative humidity of the room to be dehumidified is reduced to about 10% (applicant's (experimental results).

In addition, in order to smoothly switch between the internal condensers 2 and 3 and the external condenser 6, the thermostat 9 is set at a temperature of about 20°C to 25°C, so dehumidification is necessary. It is possible to maintain the indoor temperature at a comfortable temperature.

Furthermore, since it has an effective dehumidification structure, it consumes less power and has low maintenance costs.

Since the dehumidifier of the present invention is configured as described above, the humid air W flowing in from the suction port 11 is first heated by the condenser 2 and then cooled by the cooler 4. Therefore, the present invention can exhibit a high dehumidification effect due to the large temperature difference. In addition, in the present invention, the condenser 2 is added to the cooler 4.
Since the heated humid air W is sent, the humid air W can be dehumidified and the cooler 4 can be defrosted at the same time. Therefore, in the present invention, even if the evaporation temperature of the refrigerant in the expansion valve is set to 0° C. or lower, frost does not form on the fins of the cooler 4. Therefore,
In the present invention, the evaporation temperature of the refrigerant in the expansion valve is -15℃.
The temperature inside the refrigerator with a dehumidifier installed can be set to 18
Can be maintained at around ℃.

In this way, in the present invention, the air flowing in from the inlet 11 is heated by the condenser 2, and the evaporation temperature of the refrigerant at the expansion valve can be set to about -15°C, so the temperature difference can be used to dehumidify. This device has the outstanding effect of being able to lower the relative humidity in the room to about 10% (according to the applicant's experimental results).

[Brief explanation of the drawing]

FIG. 1 is a longitudinal sectional view showing an embodiment of the dehumidifier of the present invention, FIG. 2 is a front view of the same example, and FIG. 3 is a piping system diagram of equipment used in the dehumidifier of the present invention. 1...Machine frame, 2, 3...In-system condenser, 4...Cooler, 5...Blower, 6...Out-of-system condenser, 7...
Compressor, 8...Liquid receiver, 9...Thermostat,
10... switching structure, 11... suction port, 12... ventilation port.

Claims (1)

[Scope of utility model registration request] In-system condensers 2 and 3 are installed in the air circulation system of the machine frame 1.
A cooler 4 and a blower 5 are arranged, an extra-system condenser 6, a compressor 7, and a liquid receiver 8 are arranged outside the air circulation system, and the intra-system condensers 2 and 3 and the extra-system condenser 6 are compressed. The refrigerant is connected in parallel between the outlet side of the liquid receiver 7 and the inlet side of the receiver 8, and when the temperature is below the set temperature by the thermostat 9, the refrigerant flows into the system condensers 2 and 3, and when the temperature is above the set temperature. is provided with a switching structure 10 that operates in conjunction with the refrigerant to flow into the external condenser 6, and further includes a switching structure 10 that is connected to the air outlet from the inlet 11 so that the humid air flowing in from the inlet 11 can be dehumidified with a large temperature difference and blown as heated dry air. A dehumidifier characterized in that an internal condenser 2, a cooler 4, an internal condenser 3, and a blower 5 are arranged in order from the bottom to the top in up to 12 air circulation series.