JPS6216677B2 - - Google Patents

Description

[Detailed Description of the Invention] (a) Field of Industrial Application The present invention relates to a dry cleaner that performs washing and drying in a washing tub, and when drying, can recover the solvent in clothes and distill and regenerate the used solvent. .

(b) Conventional technology An example of this type of dry cleaner is the patent application filed in 1983.
No. 125373 (Japanese Unexamined Patent Publication No. 109096/1983), the distilled solvent is sent to the heating medium passage of the heater in the drying ventilation passage, and is used for both primary cooling and heating of the drying air. ing. The solvent that has exited the heating medium passage of the heater is led out to a condenser, cooled by a cooling coil, and then led out to a water separator. Moreover, the cooler in the drying ventilation passage performs cooling work independently.

Therefore, in such a conventional example, a dedicated condenser 27 is required for cooling the distillation solvent, and cooling water must be supplied to each of the condenser 27 and the cooler 17 separately, making it difficult to use as a dry cleaner. The complexity of the piping and the enlargement of the mechanism were unavoidable.

(c) Problems to be Solved by the Invention The present invention aims to simplify piping and downsize the mechanism by rationally providing flow paths for heat medium and coolant.

(d) Means for Solving the Problems The solution according to the present invention includes partitioning the inside of the drying ventilation duct, which is connected to the washing tub at both ends and equipped with a blower, to the left and right, and partitioning the inside of the drying ventilation duct, which is connected to the washing tub at both ends and equipped with a blower, to the left and right, respectively. A condenser and a heater are installed, one end of the heat medium passage of the heater is connected to a solvent distiller, the other end is connected to the solvent tank via a water separator, and the refrigerant passage of the condenser is connected to the solvent distiller. One end is connected to the outflow side of the water chiller, and the other end is connected to the cooling coil in the solvent tank via the cooling coil in the water separator.

(E) Function The distilled solvent flows through the heater, water separator, and solvent tank in this order, whereas the refrigerant flows through the condenser, the water separator cooling coil, and the solvent tank cooling coil in that order, and the solvent in the heater is The condenser, through which the coldest water passes, exchanges heat with the cooled air, greatly increasing condensation efficiency and solvent cooling efficiency. The refrigerant cools the water separator and the solvent in the solvent tank in order, and by matching the heating and refrigerant systems, overheating and overcooling do not occur.

(f) Example To explain based on the following figures, 1 is a washing tub, 2 is a solvent tank, and 3 is a liquid supply pump. and is supplied to the washing tub 1 through the solenoid valve 5. A drain pump 6 circulates the solvent in the washing tub 1 through the one-way valve 7 and the solenoid valve 5 during the washing operation. Reference numeral 8 denotes a distiller, which is divided into a distillation chamber 10 and a heating chamber 11 by a partition plate 9, and an electric heater 1 is installed in this heating chamber.
2 is provided. 13 is a pressure switch for detecting the pressure inside the heating chamber 11. When this distiller 8 is used, water is put into the heating chamber 11, and this water is heated by the electric heater 12 to generate steam, and this steam is used to distill the water through the partition plate 9. The solvent in the chamber 10 is heated and distilled.

Reference numeral 14 denotes a drying ventilation passage whose both ends communicate with the laundry room 1, and a filter 15, a float switch 16, and a blower 17 are installed in the ventilation passage.
A condenser 18 and a heater 19 are provided partitioned into left and right sides. During the washing operation described above, the solvent enters the drying ventilation passage 14 up to the position of the float switch 16, and the float switch 1
6 controls the solvent level in the washing tub 1.
Further, the heater 19 has a normal radiator structure in which a number of plate-shaped heat dissipating fins are fitted into a meandering heat medium passage 19', and one end of the heat medium passage 19' is connected to the heat medium passage 19' through a valve 20. It is connected to the distiller 8, and the other end is connected to a water separator 21, which is further connected to the solvent tank 2. On the other hand, condenser 1
One end of the refrigerant passage 18' of No. 8 is connected to the outflow side A of the water chiller, and the other end is connected to the water separator 2.
It is connected to the inflow side B of the water chiller through a cooling coil 22 in the solvent tank 1 and a cooling coil 23 in the solvent tank 2.

24 is a solvent recovery pipe for recovering the solvent condensed in the condenser 18;
After the water is once collected in the water separator 21 via the electromagnetic valve 26. Reference numerals 27 and 28 are intake valves and exhaust valves, respectively, which are located at the positions indicated by the broken lines in the figure during the drying process to close the intake port 29 and exhaust port 30 provided in the drying ventilation path, and during the deodorization process after the drying process. Switch to the solid line position and dry ventilation path 1.
4 and at the same time shut off the intake port 29 and the exhaust port 3.
Release 0. 31 is a motor that drives the blower 17.

In the above configuration, when the washing process and the deliquid process are completed, the solvent is distilled at the same time as the drying process begins. That is, when the washing process is completed, the drain pump 6 rotates, and the solvent in the washing tub 1 enters the distillation chamber 10 through the electromagnetic valve 32. The same applies during the dehydration process. On the other hand, when the washing process is nearing the end, the electric heater 12 of the distiller is energized, and the heating chamber 1
1 to generate steam. Therefore, the solvent entering the distillation chamber 10 is heated by the vapor, evaporates, and flows into the heater 19 through the valve 20. On the other hand, at this time, the blower 17 is rotating and the coldest water is flowing from the water chiller to the condenser 18 through the refrigerant passage 18'. Therefore, the air sucked into the drying air passage 14 from the washing tub 1 by the blower 17 is very well cooled when passing through the condenser 18, and the contained solvent is reliably condensed, and this condensation The solvent is collected in a collected liquid collection tank 25,
After the drying process is completed, when the solenoid valve 26 is opened, the water flows to the water separator 21 and is further collected in the solvent tank 2.
On the other hand, the air that has passed through the condenser 18 passes through the heater 19. Since the high temperature solvent vapor evaporated from the distiller 8 is flowing through the heat medium circuit 19' of the heater 19 as described above, the heater 19 is at a very high temperature. Therefore, the cooled air is heated when passing through the heater 19, and is blown into the washing tub 1 as hot air to evaporate the solvent from the clothes in the washing tub and dry the clothes. . On the other hand, since the air is well cooled, the solvent vapor flowing through the heating medium passage 19' of the heater radiates heat well in the heater 19, condenses, and further flows into the water separator 21. The solvent that has entered the water separator 21 is cooled in the coil 22 by cooling water that is higher temperature than the water in the condenser 18, and after separating the water, it is collected in the solvent tank 2, where it is also collected at a higher temperature. Cooled appropriately by cooling water. This drying process continues until the distillation is complete. That is, when the distillation is completed and the solvent in the distillation chamber 10 disappears, the pressure in the heating chamber 11 rises rapidly, and the pressure switch 13 detects this and ends the drying process.

When drying is completed in this way, a deodorizing process begins.
In the deodorizing process, the intake valve 27 and the exhaust valve 28 are switched to the solid line position shown in the figure to open the intake port 29 and the exhaust port 30.
Fresh air is taken into the washing tub 1 through an intake port 29, and is further discharged through an exhaust port 30. This results in
Even after the drying process, the solvent vapor that filled the washing tub 1 is discharged from the exhaust port 30.

(g) Effects of the Invention According to the present invention, it is possible to omit the heat source by using a distilled solvent as the heating medium of the heater, and at the same time, the refrigerant is transferred from the condenser to the water separator and tank in accordance with the flow of the heating medium. By flowing in this order, it is possible to efficiently condense the solvent in the heater, and the water separator can also be used as a cooling condenser, thereby preventing overheating and supercooling. Thus, by unifying the cooling system, it is possible to downsize the mechanism and simplify the piping.

[Brief explanation of the drawing]

The drawing is a solvent circuit diagram of the dry cleaner of the present invention. 1...Washing tub, 14...Drying ventilation path, 17...
Blower, 18... condenser, 18'... refrigerant passage,
19... Heater, 19'... Heat medium path, 8... Distiller, 21... Water separator.

Claims (1)

[Claims] 1. A drying ventilation path, which is connected to a washing tub at both ends and is equipped with a blower, is partitioned into left and right sides, and a condenser and a heater are installed on the left and right sides of this ventilation path, respectively, and the heating medium path of the heater is One end is connected to a solvent distiller, the other end is connected to a solvent tank via a water separator, one end of the refrigerant passage of the condenser is connected to the outlet side of a water chiller, and the other end is connected to a water separator. A dry cleaner characterized by communicating with a cooling coil in a solvent tank through a cooling coil in the dry cleaner.