JPS6345873B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a heating and cooling device for an organic solvent in a washing/drying device using an organic solvent.

A conventional cleaning/drying apparatus using an organic solvent divides a tank 1 into a first tank 2 and a second tank 3, as shown in FIG. It is designed to be sent to tank 3. For example, an ultrasonic element 5 is fixed to the bottom of the first tank 2 to clean the object to be cleaned (not shown) by ultrasonic vibration, and a heater 6 is provided to the bottom of the second tank 3 to remove the organic solvent 4. is heated to the boiling point to generate organic solvent vapor 7, and the object to be cleaned is dried with this organic solvent vapor 7. A condensing coil 8 is installed at the top of the tank 1, and cooling water of 20°C or less is passed through the organic solvent vapor 7.
At the same time, the liquefied organic solvent is cooled and liquefied, and the organic solvent is prevented from being released to the outside.
Only the organic solvent from which water has been separated is transferred to the first tank 2.
It is starting to return to .

Therefore, the apparatus requires a heater to heat the organic solvent and cooling water to cool the organic solvent.

Further, as shown in FIG. 2, one side of the condensing coil 8 is connected to the compressor 12 of the refrigerator 11, and the other side is connected to the condenser 13 connected to the compressor 12 via the thermal expansion valve 14, so that the refrigerant is By compressing it with the compressor 12, the pressure increases and heat is generated, so the condenser 13
The temperature of the refrigerant is lowered by cooling the refrigerant and lowering the pressure by the expansion valve 14, and the refrigerant is caused to flow into the condensing coil 8 to cool the organic solvent vapor 7. Since the other parts are the same as those in FIG. 1, the same reference numerals are given and the explanation will be omitted.

In the above-mentioned apparatus, although the refrigerant can be circulated for efficient cooling, a heater is required to heat the organic solvent.

Therefore, an object of the present invention is to provide a heating and cooling device for an organic solvent in a washing/drying device using an organic solvent, which can heat the organic solvent without using a heater.

The structure of the present invention will be explained in detail based on the embodiment shown in FIG.
The heated tank 17 is housed and the pressure is reduced. Then, the discharge side of the condensing coil 8 is connected to the compressor 12, and a heating conduit 18 is provided on the discharge side of the compressor 12.
6 and is connected to a separately installed refrigerant receiver tank 19. Receiver tank 19 is connected via conduit 20 to condensing coil 8 via expansion valve 14.
Connect to the introduction side.

Since the other parts are the same as those in FIG. 1, the same reference numerals are given and the explanation will be omitted.

The present embodiment is constructed as described above, and there is a refrigerant in the condensing coil 8. This refrigerant is sent to the compressor 12 and compressed, and is heated as the pressure increases. This heated refrigerant passes through the heating tank 17 via the heating conduit 18 . The water 16 is heated by the passage of the heated refrigerant, becomes water vapor 21, hits the bottom plate 15 of the second tank 3, and condenses to become water. This energy raises the temperature of the organic solvent in the second tank 3 to the boiling point, and organic solvent vapor 7 is generated.

It should be noted that the heating tank 17 is depressurized to a state close to vacuum, so that water can be vaporized at a low temperature.

The refrigerant heated in the heating tank 17 undergoes heat exchange and is liquefied, stored in a refrigerant receiver tank 19, and sent to the expansion valve 14 through a conduit 20.
vaporized by being released from the expansion valve 14;
It is sent to the condensing coil 8 and cooling the condensing coil 8.

The organic solvent vapor 7 is cooled and liquefied by a condensing coil 8, and the organic solvent is received in a receiving gutter 9, and then transferred to a water separator 10.
The organic solvent is separated from the water in the tank 2, and only the organic solvent is sent to the first tank 2.

Since the present invention has the above-described configuration and function, it is possible to heat and cool an organic solvent by simply installing a refrigerator, which is very convenient.
Energy saving can be achieved.

[Brief explanation of the drawing]

FIG. 1 is a sectional view of a conventional washing/drying device, FIG. 2 is a sectional view of another conventional example, and FIG. 3 is an example of an organic solvent heating/cooling device in a washing/drying device using an organic solvent according to the present invention. A cross-sectional view of the embodiment and an enlarged cross-sectional view of the main part of FIG. 4 are shown, respectively. In the figure, 1 is a tank, 2 is a first tank, 3 is a second tank, and 4 is a tank.
is an organic solvent, 8 is a condensing coil, 12 is a compressor, 1
4 is an expansion valve, 15 is a bottom plate, 16 is water, 17 is a heating tank, and 18 is a heating conduit.

Claims (1)

[Claims] 1 First tank 2 and second tank containing organic solvent 4 in tank 1
A condensing coil 8 is connected to the tank 3, and a condensing coil 8 is installed at the top of the tank 1.
In the cleaning/drying apparatus using an organic solvent, a heating tank 17 containing water 16 and reduced pressure is fixed to the bottom plate 15 of the second tank 3, and a heating conduit 18 is passed through the water in the heating tank 17. An organic solvent characterized in that the input side of a heating conduit 18 is connected to a compressor 12 connected to a condensing coil 8 through which refrigerant flows, and the output side is connected to the condensing coil 8 via an expansion valve 14 to circulate the refrigerant. heating and cooling equipment.