JPS6340117B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides a dry cleaner that dries laundry using the heat in the solvent vapor evaporated in the distiller, by stopping the timer means during distillation. This is to prevent the process from proceeding to the next step without being completed.

In conventional dry cleaners, the heater and distillation device for drying clothes are completely independent, so there is no negative effect even if the drying time is slightly longer, so the drying time must be determined by a timer. was completed.

However, as in the present application, when attempting to dry clothes using the heat contained in the solvent vapor evaporated from the distiller, the distillation time directly becomes the drying time. Therefore, if the drying time is set by a timer means, even if the distillation is completed and the ability to dry clothes is virtually exhausted, there may be cases where it is not possible to proceed to the next step until the time has expired, or if the set time of the timer means is If the time is too short, distillation may not be completed before proceeding to the next step.

In the present invention, the timer means controlling the progress of the process is stopped during the drying process, that is, when the distillation operation starts, and restarted when the distillation operation ends. Further, for this purpose, a detection element is provided to detect the end of the distillation operation.

That is, when the drying process is started by the timer means, this timer means is stopped. In parallel with this drying process, the solvent is distilled, and the heat of the evaporated solvent dries the clothes. The end of the distillation operation is detected by a detection element such as a thermostat or a pressure switch, and when detected, the timer means is restarted.

The present invention will be explained below based on examples. 1 is a washing tank, 3 is a solvent tank, and 3 is a liquid supply pump. When washing starts, the solvent in the solvent tank 2 is pumped to the liquid supply pump 3.
washing tub 1 through one-way valve 4 and solenoid valve 5.
supplied to 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. 8 is a distiller, which is divided into a distillation chamber 10 and a heating chamber 1 by a partition plate 9.
1, and an electric heater 12 is provided within this heating chamber. 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, a blower 17, a condenser 18, and a heater 19 are provided in the ventilation passage. During the above-mentioned washing operation, the solvent enters the drying ventilation passage 14 up to the position of the float switch 16, and the solvent level in the washing tub 1 is controlled by the float switch 16. Further, the heater 19 has a normal radiator structure in which a number of plate-shaped heat dissipation fins are fitted into a meandering heat medium passage 19'.
One end of 9' is connected to the distiller 8 via a valve 20, and the other end is connected to a water separator 21, which in turn is connected to the solvent tank 2.
On the other hand, one end of the refrigerant passage 18' of the condenser 18 is connected to the outflow side A of the water chiller, and the other end is connected to the water chiller through the cooling coil 22 in the water separator 21 and the cooling coil 23 in the solvent tank 2. Connected to the inflow side B of the chiller.

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 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 43. The same applies during the dehydration process. When the drying process begins after the completion of the liquid removal process, the electric heater 12 of the distiller is energized to generate steam in the heating chamber 11. Therefore, the solvent that has entered the distillation chamber 10 is heated by the steam and evaporates, and the valve 20
It flows into the heater 19 through. Meanwhile, at this time, the blower 17 is rotating and cold water is flowing from the water chiller to the condenser 18. Therefore, when the air sucked into the drying air passage 14 from the washing tub 18 by the blower 17 passes through the condenser 18, it condenses the solvent contained in the air, and this condensed solvent is collected in the collected liquid. It is collected in a tank 25, flows to a water separator 21 when a solenoid valve 26 is opened after the drying process, and is further collected in a 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 high temperature.
Therefore, the air is heated as it passes 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, the solvent vapor flowing through the heating medium passage 19' of the heater is condensed by dissipating heat in the heater 19, and further flows into the water separator 21. The solvent entering the water separator 21 is transferred to the coil 2
2, and after water is separated, the solvent is collected in a solvent tank 2. 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 finishes 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, and fresh air is taken into the washing tub 1 from the intake port 29 and is further discharged from the exhaust port 30. . As a result, the solvent vapor that filled the washing tub 1 even after the drying process is discharged from the exhaust port 30.

The mechanical structure and operation have been described above, and the electric circuit will be explained below. 32 is a fan electromagnetic switch for energizing the blower driving motor 31; 33 is a drying relay; and 34 is a delay relay, which are connected in series with a timer contact 35. A program timer motor 36 serves as a timer means for controlling the progress of washing, and is designed to close the timer contact 35 when the drying process begins. 37 is an electromagnet for the intake valve, and 38 is an electromagnet for the exhaust valve. When the respective electromagnets are energized, the intake valve 27 and the exhaust valve 28 open the intake port 29 and the exhaust port 30. Further, 39 is a delay contact that closes when a certain period of time has elapsed after the delay relay 34 is energized, and is connected in series with the pressure switch 13. This pressure switch opens its contacts when the pressure in the heating chamber 11 of the distiller is in a normal state during distillation, and closes its contacts when the pressure rises after distillation has ended. 40 is a normally closed relay contact that opens when the drying relay 33 is energized, and 41 is a normally open relay contact that closes when energized. Further, 42 is a circuit necessary for cleaning, draining, removing liquid, etc.

The operation of this circuit will be explained below. By energizing the timer motor 36 from the normally closed relay contact 40, this motor rotates to proceed with the washing process, and when the drying process begins, the timer contact 35 is closed. As a result, the fan electromagnetic switch 32 is energized, and at the same time, the heater 12 in the distiller is energized, and at the same time, the blower 17 in the drying ventilation path is rotated. As a result, the distiller 8 starts distilling, and the solvent evaporated from the distiller passes through the heater 19 to dry the clothes as described above. On the other hand, by energizing the drying relay 33, the normally closed contact 40 is opened, and the timer motor 36 is de-energized to stop it, and the normally open contact 41 is closed. Note that the delay contact 39 closes when a certain period of time has elapsed after the delay relay 34 was energized.

When all the solvent in the distiller 8 has evaporated and distillation has ended, the pressure in the heating chamber 11 of the distiller increases rapidly, so the pressure switch 13 closes the contact, reenergizes the timer motor 36, and starts rotating. Move on to automatic operation. On the other hand, current also flows to the intake valve electromagnet 37 and the exhaust valve electromagnet 38, and the intake port 29
The exhaust port 30 is opened and deodorization is performed as described above. In this embodiment, the end of distillation is detected by a pressure switch, but the drying ventilation passage 1
It is also possible to provide a thermostat in 4 for detection. That is, when the distillation is completed, the solvent no longer evaporates, so the temperature detected by the thermostat decreases, thereby allowing the completion of the distillation to be detected.

As described above, in the present invention, the solvent evaporated in the distiller is passed through the heater, and the clothes are dried by the heat released from the heater, so a separate heating source is not required. Moreover, since the timer means is stopped and drying is continued until the distillation is completed, there is no need to move on to the next step even though the distillation is not completed. Furthermore, if a large amount of solvent is used when there is a large amount of laundry to be washed, the distillation time will be proportionally longer and the drying time will also be longer. There isn't.

[Brief explanation of the drawing]

FIG. 1 is a solvent circuit diagram of a dry cleaner using the present invention, and FIG. 2 is an electric circuit diagram. 1... Washing tub, 8... Distiller, 13... Pressure switch (detection element), 14... Drying ventilation path, 19
... Heater, 33 ... Drying relay, 35 ... Timer contact, 36 ... Timer motor, 40 ... Normally closed relay contact.

Claims (1)

[Claims] 1 At least the three steps of washing, drying, and deodorizing are carried out in order, and in the drying step, the solvent vapor evaporated in the distiller is passed through a heater, and the hot air heated by the heater is sent to the laundry room. In the apparatus for drying by blowing water into the distiller, there is provided a timer means for sequentially proceeding the three steps, a stop means for stopping the operation of the timer means during the drying step, and a stop means for detecting the end of the distillation operation in the distiller. A dry cleaner comprising a detection element for restarting the operation of the timer means.