JPS6248516B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention operates a discharge device for discharging solvent from a washing tub not only during the dehydration process but also during the drying process to completely discharge the solvent. be.

In conventional dry cleaners, the draining device is activated only during the dehydrating process and is inactive during the drying process. However, during the dehydrating process, the drum rotates at high speed in the washing tub, so the wind pressure removes the solvent. It is difficult for the solvent to flow out, and some of the solvent remains attached to the inner surface of the washing tub. When the drying process begins, the remaining solvent flows down little by little and accumulates inside the filter, but the temperature inside this filter does not rise that much even when the drying process begins, so the solvent that has accumulated here remains until the end. After the laundry is finished, the solvent gradually evaporates and becomes solvent vapor that fills the washing tub. When the washing tub door is opened, the solvent vapor escapes into the work area, and when cleaning the filter, the solvent evaporates and becomes a problem during the work. It was deteriorating the environment.

The present invention solves the above-mentioned drawbacks by allowing the draining device that operates during the draining process to operate for a predetermined period of time even after entering the drying process.

To explain based on the diagram below, 1 is a washing tub with a rotatably installed drum O, 2 is a solvent tank, and 3 is a liquid supply pump.When washing starts, the solvent in the solvent tank 2 is supplied by the liquid supply pump 3. It is supplied to the washing tub 1 through a one-way valve 4 and a solenoid valve 5. 6 is a drain pump, and during the washing operation, the solvent in the washing tub 1 is removed by the one-way valve 7 and the solenoid valve 5.
circulate through. 8 is a distiller, which is divided into a distillation chamber 10 and a heating chamber 11 by a partition plate 9;
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. float switch 1
6.Blower17. A condenser 18 and a heater 19 are provided. 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 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 inflow side A of 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 side B.

Reference numeral 24 denotes a solvent recovery pipe for recovering the solvent condensed in the condenser 18, which once collects the solvent in a collected liquid collection tank 25 and then flows it to the water separator 21 via a solenoid 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.

Fig. 2 shows the electric circuit, where 32 is the first program contact that closes during the cleaning process, draining process, and dry deodorizing process, and 33 is the first program contact that closes during the draining process, liquid removing process, and dry deodorizing process. 2 program contacts, 34 is a third program contact that closes during the deliquification process, 35 is a fourth program contact that closes during the drying and deodorizing process, and these are the program timer motor 36.
Opening/closing is controlled by A reversing timer motor 37 is connected in series to the first program contact 32, and the reversing timer motor alternately switches the reversing switch 38 between an electromagnetic switch 39 for clockwise rotation of the cleaning motor and an electromagnetic switch 39 for rotating the cleaning motor counterclockwise. Electromagnetic switch 4
0 and 0 alternately.

Both electromagnetic switches 39 and 40 rotate the washing motor left and right alternately when energized, causing the drum O to rotate in reverse at the washing speed, and normally closed contacts 39' and 4, respectively.
0' is opened. Reference numeral 41 denotes a draining device consisting of a drain pump electromagnetic switch 42 and a drain valve 43, which is connected to the second program contact 33 via a delayed opening contact 52', and drains washing liquid from the washing tub when energized. It is for the purpose of Reference numeral 44 designates a low-speed dewatering time delay relay, which opens a delayed opening contact 44' when a certain period of time has elapsed after energization, and at the same time cuts off the power to the low-speed dewatering relay 45.
The delayed closing contact 44'' is closed to energize the electromagnetic switch 46 for the deliquor motor. Reference numeral 47 is a relay for opening the intake and exhaust valves. It shuts off the drying air passage 14 at the same time it opens, and is connected in parallel with the recovered liquid valve 26. Reference numeral 48 denotes an electromagnetic switch for an electric heater, which connects the heater 1 provided in the distiller 8.
2, 49 is a fan motor electromagnetic switch for energizing the blower drive motor 31, and 50 is a drying delay relay, which connects the recovery liquid valve 26 when a certain period of time has passed after energization. 51 is a drying relay that opens the normally closed contact 51' when energized and simultaneously closes the normally open contact 51''; 52 is a draining device delay relay; When the time elapses, the delayed opening contact 5 in series with the draining device 41
2' opens, 53 is a relay for closing the intake and exhaust valves,
When energized, the intake valve 27 and the exhaust valve 28 are moved to close the intake port 29 and the exhaust port 30. In addition, the pressure switch 13 is normally closed to the normally closed contact NC side connected to the electromagnetic switch 48 for the electric heater, and when the pressure in the heating chamber 11 of the distiller rises above a certain value, the normally open contact is closed. It is designed to close on the NO side.

The operation will be explained below. During the cleaning process, the first program contact 32 closes to energize the reversing timer motor 37, and the reversing switch 38 is alternately switched to alternately energize the electromagnetic switch 39 for clockwise rotation and the electromagnetic switch 40 for counterclockwise rotation of the cleaning motor. , drum O
Washing is carried out by periodically turning the washing machine. On the other hand, since the pressure switch 13 is closed to the normally closed contact NC side, the electric heater electromagnetic switch 48 is energized to heat the inside of the distiller 8.

When the draining process begins, the second program contact 33 is also closed, and the draining device 41, that is, the drain pump electromagnetic switch 42 and the drain valve 43 are energized. As a result, the drain pump 6 rotates and the drain valve 43 opens, so that the solvent in the washing tub 1 is released into the distiller 8.
will be moved to

When entering the dewatering process, the first program contact 32
At the same time as opens, the third program contact 34 closes, energizing the deliquing low speed time delay relay 44 and at the same time energizing the deliquing low speed relay 45, and at the same time opens its normally closed contact 45', the normally open contact 45'' is also energized. Then, the cleaning motor clockwise rotation electromagnetic switch 39 is energized to continuously rotate the drum O in the right direction.When a certain period of time has elapsed, the delayed opening contact 44' opens and at the same time the delayed closing contact 44'' closes. , the electromagnetic switch 46 for the liquid removal motor is energized, and the drum O is rotated at high speed to perform centrifugal liquid removal.

Even during this liquid removal process, distillation is continued by energizing the electromagnetic switch 48 for the electric heater. That is, by energizing the electric heater electromagnetic switch 48, a current flows to the electric heater 12, and the heating chamber 11 of the distiller is heated.
It heats the water inside and generates steam. Therefore, during the liquid draining process and the liquid removal process, the distillation chamber 10
The solvent that has entered is heated by the vapor, evaporates, and flows into the heater 19 through the valve 20.

When the drying and deodorizing process begins, the third program contact 3
4 is open, but the 1st, 2nd, and 4th program contacts 3
2, 33, 35 close. 1st program contact 3
2 closes, the drum O is periodically reversed as described above.

Due to the closure of the second program contact 33, the drainage device 41 continues to operate, and the solvent in the washing tub 1 is transferred to the distiller 8. The reason why the draining device 41 is operated even after entering the drying and deodorizing process is as follows.

That is, during the draining process, since the drum O is rotating at high speed within the washing tub 1, droplets adhering to the inner surface of the washing tub flow downward under wind pressure. When the drying and deodorizing process begins, the drum O rotates at a low speed, so the wind pressure decreases, and the solvent droplets adhering to the inner peripheral surface of the washing tub 1 flow down and accumulate in the filter 15. Therefore, even if the drying and deodorizing process begins, if the drain device is operated for a while, the solvent accumulated in the filter 15 will be transferred to the distiller 8 side by the drain pump 6, but the drain device is not operated. This is because the solvent may remain in the filter 15 and gradually evaporate after washing is completed, polluting the air in the workplace.

When the fourth program contact 35 closes, the fan motor electromagnetic switch 49 is energized, and the motor 31 rotates the blower 17 to open the drying ventilation path 1.
4.Create air flow inside. On the other hand, since the solvent vapor evaporated in the distiller 8 is flowing into the heater 19 in this drying ventilation passage, the temperature is high, so when the air flow passes through this heater 19 part, it is heated. It becomes hot air. This hot air is blown into the washing tub 1 to evaporate the solvent from the laundry. The air from which the solvent has been evaporated is blown into the drying air passage 14, and when it passes through the condenser 18,
The liquid is cooled and condensed by the cold water flowing through the condenser, and collected in the collected liquid collection tank 25. When the drying operation is started in this way, the drying relay 5
1 opens the normally closed contact 51', and at the same time the program timer motor 36 is cut off, the normally open contact 51'' closes.

When the drying operation is carried out in this manner and a certain period of time has elapsed, the drying delay relay 50 closes the delay closing contact 50'. Also, drain device delay relay 52
is activated to open the delayed release contact 52' and stop the operation of the draining device 41.

The drying process continues in this manner, but when the solvent in the distillation chamber 10 evaporates and the distillation is completed, the pressure in the heating chamber 11 rises rapidly. As a result, the pressure switch 13 switches from the normally closed contact NC side to the normally open contact NO side, and energizes the program timer motor 36 through the delayed closing contact 50' and relay contact 51'', which are closed as described above. starts rotating again.Meanwhile, the recovered liquid valve 26 is also energized, this valve opens, and the solvent accumulated in the recovered liquid collecting tank 25 is recovered into the solvent tank 2 through the water separator 21. Also, the intake/exhaust valve opening relay 47 is energized to open the normally closed contact 47', and the intake/exhaust valve closing relay 53 is deenergized, so the intake port 29 and the exhaust port 30 are opened, and the washing tub 1 is closed. Bring in fresh air and deodorize.

As described above, in the present invention, the draining device for discharging detergent from the washing tub to a predetermined position is operated during the draining process, and is also operated for a predetermined time during the drying process. All solvents that adhere to the surface and flow down during the drying process can also be removed. Therefore, there is no possibility that solvent vapor will fill the washing tub after washing is finished, and as a result, when the door is opened, it will not leak out and contaminate the air in the workplace.
A highly safe dry cleaner can be provided.

[Brief explanation of the drawing]

Figure 1 is a solvent circuit diagram of the dry cleaner of the present invention.
FIG. 2 is the electrical circuit diagram, and FIG. 3 is a programming diagram after the draining process. 33...Second program contact, 52'...Delayed open contact, 41...Drainage device, 42...Drain pump electromagnetic switch, 43...Drain valve.

Claims (1)

[Claims] 1. A washing process, a draining/removal process in which a drain device is activated to discharge the solvent from the washing tub to a predetermined position, and a drying process in which a heater and a fan are activated. A dry cleaner comprising a timer for continuously operating the draining device for an initial predetermined period of time during execution.