WO1991016489A1

WO1991016489A1 - Apparatus for drying clothes and the like and method thereof

Info

Publication number: WO1991016489A1
Application number: PCT/JP1991/000564
Authority: WO
Inventors: Takayuki Ohkawa
Original assignee: Tosei Denki Kabushiki Kaisha
Priority date: 1990-04-26
Filing date: 1991-04-25
Publication date: 1991-10-31
Also published as: DE69128825T2; EP0480062B1; DE69128825D1; EP0480062A1; EP0480062A4; ATE162865T1

Abstract

Heated air is delivered into a drying chamber, a solvent contained in an article to be dried which is housed in a drying drum in the drying chamber is evaporated together with moisture, this air containing the vapor of solvent and the moisture is cooled and the moisture and the vapor of solvent are separated in liquefied conditions. An air blower (5) is provided in an exhaust path (6) of the drying chamber (1) provided with a drying drum (2). A heating chamber (11) is provided in an air intake path (8) of the drying chamber (1). A cooling chamber (14) communicating with a solvent recovery path (15) is allowed to communicate with the air intake path (8) and the exhaust path (6), to thereby form a solvent recovery circulating path (25). An openable outdoor air introducing opening (21) for introducing outdoor air is provided in the air intake path (8). A change-over damper (24) for selectively allowing the air intake path (8) to communicate with an air exhaust path on the side of the outdoor air is provided on the side of outlet of the cooling chamber. The vapor of solvent contained in the exhausted air can be recovered as much as possible to be released to the atmosphere in a low odor condition.

Description

Description Drying equipment for clothes, etc. and drying method technology

The present invention relates to a drying apparatus and a drying method for clothes that are dried while recovering the solvent from the clothes or the like washed with a petroleum-based dry cleaning solvent.

Background technology

Conventional oil-based dry-cleaning solvent-washed clothes. Dryers for drying clothes, for example, are described in, for example, Japanese Utility Model No. 59-732298. As described in the official gazette, the air heated in the heating chamber is sent to the drying chamber, and the air exhausted from the drying chamber is cooled in the cooling chamber and included in the exhaust air. Solvent vapor and water are liquefied, and the air from which the solvent vapor has been separated is heated again in the heating chamber, circulated to be sent to the drying chamber, and dried while collecting the solvent. I am trying to do it.

Then, the concentration of the solvent in the circulation path is detected, and the concentration of the solvent vapor is increased by stopping the ventilation air due to clogging in the evening or decreasing the flow rate. When a concentration at which the solvent vapor is likely to explode is detected, the outside air is sucked into the drying chamber, and the air that has passed through the drying chamber is released into the atmosphere, and the solvent vapor explodes. Prevented structures are known.

However, in the dryer having the conventional structure described above, the solvent When the vapor concentration increases, solvent vapor can be recovered even if the outside air is inhaled to dilute the solvent vapor concentration in the drying chamber and eliminate the risk of explosion. However, it is released into the air while being contained in the exhaust air, and there is a problem that the odor of the solvent vapor comes out.

Also, in the above-described dryer having the conventional structure, even when drying the object to be dried such as clothes washed with water and washing, the air to be dried is dried. As in the case of drying, it passes through the cooling chamber where the condenser is installed, so the air path resistance is high, and the efficiency of the pedestal to dry the items to be washed and washed is poor. Yes.

The present invention solves the above-mentioned problems of the conventional clothes drying device, and when air that has passed through the drying chamber is discharged into the atmosphere, the air is cooled beforehand and then discharged. Recover as much of the solvent vapor as possible in the exhaust air, and if the exhaust air contains some solvent vapor, it is cooled. Therefore, the objective is to provide a drying device and a drying method for clothes and the like that can be released into the atmosphere with little odor.

Further, the present invention provides a method for drying a dried object that has been washed by dry cleaning, wherein the dried object is dried in a solvent recovery circulation process. In addition, the petroleum dry cleaning solvent is recovered, and when drying the object to be dried without using a solvent such as washing with water, the air path with low air path resistance is used. Drying with high drying efficiency by allowing exhaust air to flow It provides a method of drying clothes and other clothes.

Disclosure of the invention

The drying device such as the clothes of the present invention includes a drying chamber provided with a drying drum, an exhaust path which is communicated with an exhaust port of the drying chamber and has an air blower, and which communicates with an intake port of the drying chamber. Forming a solvent recovery circulation path with the suction path having the heating chamber and the cooling chamber which is connected to and communicated with the exhaust path and the suction path and communicates with the solvent recovery path; Opening / closing to introduce outside air into the air intake path of the solvent recovery circuit, an independent outside air inlet is provided, and the air intake path and the outside air side are provided on the outlet side of the cooling chamber. It is equipped with a switching damper for selectively communicating with each other.

Then, in order to dry the object to be dried, such as clothes in the drying room, the air heated in the heating room is sent to the drying room, and the object stored in the drying drum in the drying room is dried. The solvent contained in the dried product is evaporated, and the water is evaporated.The air containing the solvent vapor and the moisture is sent to the cooling room, and cooled to remove the moisture and water. In addition, the solvent vapor is liquefied and separated, and the cooled air is heated again in the heating chamber and sent to the drying chamber, and the air is circulated through the heating chamber, drying chamber, and cooling chamber in order to recover the solvent. Is performed. Also, when the solvent vapor concentration increases, or when outside air is introduced during the solvent recovery circulation process, the air in the drying chamber should be exhausted at the end of the drying process. When discharged into the atmosphere, the exhaust air is released after being cooled, so the solvent vapor in the air is separated and collected by cooling. As a result, the solvent recovery efficiency is improved, and even if the air contains a small amount of solvent, the odor is reduced because it is cooled.

Further, the drying device such as the clothes of the present invention is provided with a condenser in a cooling room, and a see-through window for viewing the inside from the outside in the cooling room. .

The inside of the cooling room can be easily checked from the outside with a see-through window, and maintenance and inspection of the cooling room such as a condenser can be easily performed.

Further, the drying device such as clothing of the present invention detects the solvent vapor concentration in the solvent recovery path, and when the set vapor concentration range is detected, the outside air inlet is opened and switched. It has a concentration sensor that switches the damper and connects the outlet side of the cooling chamber to the outside air discharge passage.

Then, when the concentration sensor detects the concentration range of the solvent vapor within the set concentration range during the solvent recovery circulation process, the outside air inlet is opened and the cooling air is guided to the cooling chamber. The outlet damper is switched to connect the outlet side of the cooling chamber to the outside air exhaust path to lower the temperature of the drying chamber and reduce the concentration of solvent vapor to prevent explosion. .

Further, in the drying device such as the clothes of the present invention, when the temperature of the solvent recovery circuit is detected and a temperature rise above a set temperature is detected, the outside air inlet is opened. In addition, a temperature sensor is provided to switch the switching chamber and connect the outlet side of the cooling chamber to the outside air discharge passage. Then, when the temperature sensor detects a temperature rise above the set temperature during the solvent recovery circulation process, the outside air inlet is opened and the outside of the cooling chamber is moved to the outlet side of the cooling chamber. The damper is switched so that the outlet side of the cooling chamber is connected to the outside air exhaust path to lower the temperature of the drying chamber and to lower the temperature of the solvent vapor to prevent explosion. .

In addition, the drying device such as clothing of the present invention forms an outlet / exhaust air passage opened in the air in parallel with the cooling chamber of the solvent recovery circuit, and the outside air is supplied to the air inlet of the solvent recovery circuit. Opening / closing to be introduced The opening / closing own outside air introduction port is provided, and a switching damper for selectively communicating the cooling chamber and the discharge air path is provided on the outlet side of the exhaust path.

Then, when drying items to be dried, such as clothes that have been washed with water without using a cleaning solvent, switch the damper and exhaust air. The exhaust air path is connected to the outlet side of the road, and the outside air is introduced into the intake path.The outside air inlet is opened, and the outside air is drawn in from the outside air inlet and heated by the heater. The air thus introduced is introduced into the drying chamber to evaporate the moisture contained in the material to be dried, and the air containing the evaporated water does not pass through the exhaust passage through the cooling chamber. To the atmosphere through the exhaust air passage. In addition, since the exhaust air does not pass through the cooling chamber, the airflow resistance is low, the heated air efficiently passes through the drying chamber, and the drying is effectively performed.

In addition, the method of drying clothes and the like according to the present invention comprises supplying the air heated in the heating chamber to a drying chamber provided with a drying drum. The solvent is evaporated from the material to be dried, and the solvent and air evaporated from the exhaust port of the drying chamber are introduced into the cooling chamber from the exhaust path, and the evaporated solvent is liquefied. And recovers the air from the solvent recovery path and heats the air again in the heating chamber to supply the air to the drying chamber; and the openable and closable process introduces outside air into the drying chamber. The outside air inlet is opened to supply outside air to this drying chamber, and the evaporated solvent and air in the drying chamber are introduced into the cooling chamber from the exhaust path to liquefy the evaporated solvent. An external air introduction process for recovering the solvent from the solvent recovery passage and exhausting the air from an outside air discharge passage connected to the outlet side of the cooling chamber. The introduction process and are alternately performed alternately.

Then, outside air is supplied to the drying chamber from the outside air inlet of the air intake path, thereby lowering the temperature of the drying chamber, reducing the concentration of the evaporated solvent, and preventing an explosion.

Further, the drying method of the clothes and the like according to the present invention is a method in which the solvent recovery circulation process and the outside air introduction process are switched every predetermined time and repeated.

In addition, the drying method for clothing and the like according to the present invention detects the solvent vapor concentration in the drying chamber of the solvent recovery circuit and detects the concentration within the set concentration range. This is a switch to the introduction process.

In addition, the drying method for clothes and the like according to the present invention detects the temperature in the drying chamber of the solvent recovery circuit and detects the temperature equal to or higher than the set temperature. It is something that switches in time.

Brief description of the drawings

FIG. 1 is a cross-sectional view of a preferred clothes drying apparatus of the present invention.

BEST MODE FOR CARRYING OUT THE INVENTION In order to describe the present invention in more detail, a description will be given below with reference to the accompanying drawings. ''

Reference numeral 1 denotes a drying chamber, in which a substantially cylindrical drying drum 2 formed of a punching mail or the like and having a large number of ventilation holes on a peripheral surface is rotated. It is set up on its own. This allows drying objects such as clothing to enter and exit the drying drum 2 from the front opening / closing door (not shown) of the drying room 1. A stirring blade 3 for stirring the object to be dried is provided in the drying drum 2.

An exhaust port 4 is opened at a lower portion of the drying chamber 1, and an exhaust path 6 provided with a blower 5 communicates with the exhaust port 4. Further, an intake port 7 is opened at the upper part of the drying chamber 1, and a heater 10 having a steam pipe 9 is provided in an intake path 8 connected to the intake port 7. Heating chamber 11 is formed.

Further, a cooling chamber 14 provided with a condenser 13 having a cooling water pipe 12 is connected to the exhaust path 6, and the intake path 8 is provided on the outlet side of the cooling chamber H. They are in communication. Further, a solvent recovery path 15 is connected to a lower portion of the cooling chamber 14, and a solvent water separator Π is connected to the solvent recovery path 15. this Solvent water separator 16 separates by the specific gravity of solvent and water Solvent outlet 1? And a water outlet are formed above and below.

Further, an exhaust air passage 19 provided in parallel with the cooling chamber 14 is connected to the outlet side of the exhaust passage 6, and the outlet side of the exhaust air passage 19 is open to the atmosphere. It is being talked about.

Further, in the exhaust path 6, a lint filter 20 is provided on the suction side of the blower 5.

The intake path 8 is provided with an open / closed external air inlet 21 for introducing external air, and the external air inlet 21 is provided with an air cylinder, a hydraulic cylinder, or the like. Or a first damper 22 which is opened and closed by an electromagnetic device or the like.

Further, on the outlet side of the exhaust path 6, a second damper 23 for selectively communicating the exhaust path 6 with the cooling chamber 14 and the exhaust air path is provided. It is. In addition, a third damper 24 for selectively communicating with the intake passage 8 and the exhaust air passage 19 is provided on the outlet side of the cooling chamber 14. Both dampers 23 and are switched by an air cylinder, a hydraulic cylinder or an electromagnetic device to be opened and closed.

The drying chamber 1, an exhaust path 6 communicated with an exhaust port 4 of the drying chamber 1, and a suction port connected to the outlet side of the exhaust path 6. A solvent recovery circulation path 25 is formed by the cooling chamber 14 that connects the path 8 to the discharge side.

Further, an adjustment valve 26 is provided in the steam pipe 9 of the heater 10, and by adjusting the adjustment valve 26, the heater 10 is Heat the air to a temperature appropriate for the material to be dried.

The drying chamber 1 is provided with a nozzle for spraying live steam.

Further, a cooling window 14 provided with the condenser 13 is provided with a transparent window 28 that can be opened and closed so that the inside can be viewed from the outside.

With this configuration, a dried object such as clothes washed with an oil-based dry cleaning solvent is placed in the drying drum 2 of the drying chamber 1. throw into . In addition, the outside air inlet 21 for introducing outside air into the intake path 8 is closed with a first dang, ° — 22, and the outside air inlet 21 is closed with a second damper 23. The outlet side of the exhaust path 6 ′ is connected to the cooling chamber 1, and the outlet side of the cooling chamber H is connected to the intake path 8 through the third damper 24 to recover the solvent. Form a circuit.

When the steam is circulated through the steam pipe 9 of the heater 10 and the blower 5 is driven, the air heated by the heater 10 in the intake passage 8 is dried. The petroleum-based dry cleaning solvent adhering to the material to be dried in the drying drum 2 that has been introduced into the rotating drying drum 2 is evaporated and the water is also removed. The evaporated solvent and moisture are introduced into the cooling chamber 14 from the exhaust path 6 together with the air, and the solvent and moisture are cooled and liquefied.

The liquefied solvent and water are discharged to a solvent recovery path, and the solvent introduced into the solvent water separator 16 from the solvent recovery path 15 is separated by a difference in specific gravity with water. The solvent is drained from the upper solvent drain Π and water is drained from the lower water outlet 18. . The air from which the solvent and water are separated is

Then, the mixture is heated again by the heater 10 and the process is sequentially repeated. The material to be dried is dried, and the solvent is recovered.

In addition, during the solvent recovery circulation process, live steam is blown from the nozzle for spraying live steam to the drying chamber 1 as appropriate, so that the humidity of the drying chamber 1 is increased, and the inside of the drying drum 2 is increased. Humidity is applied to the material to be dried to suppress the generation of static electricity and to prevent the explosion of the solvent vapor due to the discharge due to the static electricity.

In addition, for example, after the solvent recovery circulation process is performed for 15 ^, the outside air inlet 21 for continuously introducing outside air to the intake air 8 ′ by the timer control is set to the first air inlet 21. Opening at the damper 22 of the second and the third damper 23 keep the discharge side of the exhaust passage 6 in communication with the cooling chamber 1 and the third damper. The damper 切換 is switched to open and close, and the outlet side of the cooling chamber 14 is connected to the atmosphere via the exhaust air passage 19, and the outside air inlet 2 1 of the intake passage 8 is connected to the drying chamber 1 ′. External air is supplied from this to reduce the temperature of the drying chamber 1 and to reduce the concentration of the evaporated solvent, thereby preventing an explosion.

The vapor and air of the solvent exhausted from the drying chamber 1 are introduced into the cooling chamber 14 through the exhaust path 6, and the evaporated solvent is liquefied, recovered from the solvent recovery path, and cooled. The exhausted air is exhausted from the exhaust air passage 19 through an outside air introduction process and an exhaust process, for example, for 5 seconds. Then, the outside air inlet 21 for introducing outside air into the intake passage 8 is closed by the first damper 22, and the exhaust passage is then closed by the second damper 23. 6 Outlet to cooling room 14 While the communication is maintained, the third damper 24 is switched to open and close so that the outlet side of the cooling chamber 14 is connected to the intake passage 8, and the solvent recovery circulation process is performed for 30 seconds. . For example, the outside air introduction step and the solvent recovery and circulation step are alternately performed for 5 to 10 minutes.

Since the exhaust air that is exhausted in the outside air introduction process is cooled, even if solvent vapor is contained, the recovery of the solvent can be improved and the exhaust air can be exhausted. Low odor, even if it contains some steam.

Further, after performing the cycle operation of the outside air introduction process and the solvent recovery circulation process, the outside air introduction port す for introducing outside air into the intake passage 8 by the timer control is continued. The first damper 22 closes, the second damper 23 connects the outlet side of the exhaust path 6 to the cooling chamber 14, and the third damper 23 connects the third damper 22 to the cooling chamber 14. The open / close of the cooling chamber〗 4 is switched to open / close to connect the outlet side of the cooling chamber〗 4 to the intake path 8, the heater 10 in the intake path 8 is stopped, and the cooling chamber is driven by the blower 5 The air cooled in (14) is circulated to the drying chamber (1) to cool the drying chamber (1) and to cool the material to be dried in the drying drum (2). For example, in the circulating cooling process, after 5 to 10 minutes, the outside air inlet 2 that introduces outside air to the intake passage 8 continuously by the timer control to the timer control. 1 is opened at the first dang, 22 and at the same time, the outlet side of the exhaust path 6 is connected to the cooling chamber 14 through the second damper 23. Until then, the third damper 24 is switched and opened / closed to connect the outlet side of the cooling chamber 14 to the atmosphere via the exhaust air path Π. In this state, the heater 10 is stopped, and the outside air is introduced into the intake passage 8 from the outside air inlet 21. When the drying chamber 1 is cooled down at the outside air temperature, it is cooled in the cooling chamber 14 and exhausted to the atmosphere from the outside air side exhaust air passage 19, and the drying chamber 1 is deodorized. In addition, the exhaust air is also cooled, and the odor of the exhaust air is reduced. For example, this deodorization process is performed for one minute, and the entire drying process is completed.

In addition, when drying the material to be washed without using a petroleum-based dry cleaning solvent, the outside air inlet 2 through which the outside air is introduced into the intake passage 8. 1 is opened by the first damper 22, and the second damper 23 is used to connect the outlet side of the exhaust passage 6 to the exhaust air passage 19, and Close the intake side of the intake passage 8 with the damper Π. Then, when the steam is circulated to the steam pipe 9 and the blower 5 is driven, the air heated by the heater 10 in the intake passage 8 is dried. The moisture adhering to the object to be dried in the drying drum 2 being introduced into the rotating drying drum 2 and being rotated is evaporated, and the evaporated moisture is exhausted together with air into the exhaust passage 6. The air is exhausted from the exhaust air passage 路 into the atmosphere. The exhaust air exhausted into the atmosphere does not pass through the cooling chamber 14 in which the condenser 13 is provided, so that the airflow resistance is small and the exhaust air is smoothly exhausted. The wind flows and the drying efficiency is improved.

In addition, a temperature sensor 30 is provided in the exhaust path 6 of the drying chamber 1, and the temperature of the exhaust air exhausted from the drying chamber 1 is higher than a set temperature. When a high temperature is detected, a signal from the temperature sensor 30 is used to open the first damper 22 of the outside air inlet 21. The cooling chamber The outlet side of 14 is switched, and the second damper 23 is switched, so that the outlet side of the cooling chamber 14 is communicated with the outside air exhaust passage U.

Then, when the temperature sensor 30 detects a temperature rise above the set temperature during the solvent recovery circulation process, the outside air inlet 21 is opened and the cooling chamber 14 is opened. The third damper 24 on the outlet side of the cooling chamber H is switched, and the outlet side of the cooling chamber H is communicated with the outside air exhaust path 19 to lower the temperature of the drying chamber 1. Reduce the temperature of solvent vapor to prevent explosion. After the outside air introduction process for a set time, the outside air introduction port 21 is closed, and the third damper 24 on the outlet side of the cooling chamber 14 is switched. The outlet side of the cooling chamber 14 is communicated with the intake path 8. When the solvent recovery circulation process is performed for a set time, the process enters the outside air introduction process again, and the solvent recovery circulation process and the outside air introduction process are alternately cycled. After the cooling process, the deodorizing process is performed, and the entire drying process is completed.

In addition, instead of the temperature sensor 30, a concentration sensor for detecting the concentration of the solvent vapor is installed, and when the concentration concentration of the solvent vapor is detected in the set concentration range where it is easy to explode. According to a signal from the concentration sensor, the outside air inlet 21 is opened, and the third damper 24 on the outlet side of the cooling chamber 14 is switched. The outlet side of the cooling chamber 14 may be communicated with the outside air side exhaust air passage 19.

Then, during the solvent recovery circulation process, the concentration sensor 30 sets the concentration range, for example, the concentration range of 1% to 6% solvent vapor. Is detected, the outside air inlet 21 is opened, and the third chamber 24 on the outlet side of the cooling chamber 14 is switched to the outlet side of the cooling chamber H. It communicates with the outside air exhaust passage 19 to reduce the temperature of the drying chamber 1 and to reduce the concentration of solvent vapor, thereby preventing explosion. After the outside air introduction process for a set time, the outside air introduction port 21 is closed, and at the same time, the third damper 24 is switched on the outlet side of the cooling chamber 14 to cool down. The outlet side of the chamber 14 is communicated with the intake passage 8.

When this solvent recovery circulation process is performed for a set time, the process enters the outside air introduction process again, and after the solvent recovery circulation process and the outside air introduction process are alternately cycled, the above-described cooling is performed. After the recycle process, the deodorization process is performed, and the entire drying process is completed.

Further, the inside of the cooling chamber 14 can be easily checked from the outside through the see-through window 28, and maintenance and inspection of the cooling chamber such as a condenser can be easily performed.

In the above embodiment, the condenser の of the cooling chamber ί4 has been described as using the cooling water pipe 12; however, the water cooled by the cooler or the condenser Π Can be made to circulate other refrigerants.

Industrial applicability

Suitable for drying clothes, etc., washed with petroleum-based dry solvents.

Claims

The scope of the claims

(1) A drying chamber in which a drying drum is provided, an exhaust path communicating with an exhaust port of the drying chamber and having a blower, and a heating chamber communicating with an intake port of the drying chamber. A solvent recovery circuit is formed by an intake path and a cooling chamber which is connected between the exhaust path and the intake path and communicates with the solvent recovery path. Opening / closing for introducing outside air into the cooling air opening and closing switch, and selectively switching between the intake path and the outside air side exhaust air path on the outlet side of the cooling chamber. No ,. — Established

Drying equipment for clothing, etc., characterized by this.

(2) Claim 1 characterized in that a condenser is provided in the cooling chamber, and the cooling chamber is formed with a see-through window for viewing the inside from outside. Drying equipment such as the described clothing.

(3) When the solvent vapor concentration in the solvent recovery path is detected and the set vapor concentration range is detected, the outside air inlet is opened and the damper is switched, and the damper is switched to the outlet side of the cooling chamber. Claims 1 and 2 are characterized by providing a concentration sensor for communicating the air with the outside air discharge path.

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(4) When the temperature of the solvent recovery circuit is detected and a temperature rise above the set temperature is detected, the outside air inlet is opened and the switching damper is switched to switch the cooling chamber. A special feature is that a temperature sensor is provided to connect the outlet side to the outside air discharge path. Drying equipment, such as clothing as set forth in Claim 1

(5) A drying chamber in which a drying drum is provided, an exhaust path communicating with an exhaust port of the drying chamber and having a blower, and a heating chamber communicating with an intake port of the drying chamber. A solvent recovery circulation path is formed by a suction chamber and a cooling chamber which is connected between the exhaust path and the suction path and communicates with the solvent recovery path. Forming an exhaust air passage that opens to the

Introduce outside air into the intake path of the solvent recovery circuit.

A switching damper for selectively communicating the cooling chamber and the exhaust air path is provided on the outlet side of the exhaust path.

Drying equipment for clothing, etc. that specializes in this.

(6) The air heated in the heating chamber is supplied to the drying chamber in which the drying drum is provided, the solvent is evaporated from the material to be dried, and the air is evaporated from the exhaust port of the drying chamber. The evaporated solvent and air are introduced into the cooling chamber from the exhaust path, the evaporated solvent is liquefied and recovered from the solvent recovery path, and the air is again heated in the heating chamber to be heated. The solvent recovery circulation process to be supplied to the drying chamber, and the opening and closing of the open / closed external air inlet for introducing the outside air to the drying chamber, the outside air is supplied to the drying chamber, and the evaporation of the drying chamber is performed. The evaporated solvent and air were introduced into the cooling chamber from the exhaust path, the evaporated solvent was liquefied and recovered from the solvent recovery path, and was also connected to the outlet side of the cooling chamber. Outside air side A method for drying clothes or the like, comprising: an outside air introduction step for exhausting air from a discharge path, wherein the solvent recovery circulation step and the outside air introduction step are selectively and alternately performed.

(7) The method for drying clothes or the like according to claim 1, wherein the solvent recovery circulation step and the outside air introduction step are switched at predetermined time intervals and repeated.

(8) Detects the solvent vapor concentration in the drying chamber of the solvent recovery circuit, and switches from the solvent recovery circuit to the outside air introduction process when the concentration in the set concentration range is detected.衣類 Drying method such as the clothing described in claim 1 ο,

(9) A special feature that detects the temperature inside the drying chamber of the solvent recovery circuit and detects a temperature above the set temperature, and switches from the solvent recovery circuit to the outside air introduction process. A method for drying clothes, etc. according to claim 1.