JPH06319896A - Dryer for clothes - Google Patents

Abstract

PURPOSE:To prevent the explosion due to the solvent steam and improve the solvent collection ratio by flowing down the cooled refrigerant from the refrigerant tube of a cooler at the highest stage and connecting an exhaust path to a solvent collection path. CONSTITUTION:The air heated by a heater 8 of an inlet path 5 is introduced to a drying room 1 and the petroleum base solvent dry cleaning the solvent and moisture attached to the clothes in a rotating drier drum 2 is evaporated. The evaporated solvent and moisture are successively guided to a cooling device 16 at the lower stage and a cooling device 15 at the upper stage of an exhaust path 10. The solvent and moisture are cooled down and liquefied and then ejected to a solvent collection route 18. The solvent which is taken in from the route 18 to a solvent/water separator 19 is separated by the relative density difference with the water and collected from an upper solvent exhaust port 21. The moisture is ejected from the water exhaust port 22 at the lower part. In the drying process, the air is exhausted to the outside from an exhaust port 30 so that the solvent steam density inside the device can be kept low and the explosion can be surely prevented.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a drying device for clothes and the like, and more particularly to a drying device for drying a clothes washed with a petroleum cleaning solvent while collecting the solvent.

[0002]

2. Description of the Related Art Conventionally, in dry cleaning,
CFCs with excellent finish with little risk of fire and explosion,
Synthetic solvents such as ethane and perchlorethylene have been mainly used, but since these synthetic solvents are harmful to the human body, their use is becoming impossible from the viewpoint of preventing environmental pollution. Therefore, in recent years, hydrocarbon-based solvents such as petroleum (hereinafter referred to as "petroleum-based cleaning solvent") have been mainly used in place of this synthetic solvent.

However, this petroleum-based cleaning solvent is originally a flammable substance, and due to improper handling, a fire,
There is a danger of explosion, and when it is released into the atmosphere, it causes environmental pollution, and also has a problem that the solvent vapor produces an odor.

Therefore, in order to prevent the release of the petroleum-based cleaning solvent, a dryer for closed type clothes has been used.

As such a closed type dryer, for example, as described in Japanese Utility Model Laid-Open No. 59-73298, the air heated in the heating chamber is sent to the drying chamber, and the clothes are dried in the drying chamber. Air that is heated to evaporate the solvent contained in the clothes, cools the air exhausted from the drying room in the cooling room, liquefying the solvent vapor contained in the exhaust air, and separating the solvent vapor There is known a structure in which is circulated so as to be heated again in the heating chamber and sent to the drying chamber, a circulation path is formed, and the solvent is dried while collecting the solvent.

[0006]

However, in the closed type dryer having the circulation path described in the above-mentioned Japanese Utility Model Publication No. 59-73298, the inside of the dryer is caused by evaporation of the solvent contained in the clothes. Since the solvent vapor concentration of the solvent gradually increases, the solvent vapor concentration must be controlled so as not to exceed the explosion limit concentration (0.6% to 0.7%), for example. For this reason, a control means is adopted that detects the concentration of solvent vapor in the circulation system, and when the concentration that easily explodes is detected, sucks the outside air into the drying chamber and discharges the air passing through the drying chamber into the atmosphere. , The solvent vapor concentration is controlled,
There is a problem that the control means for preventing the explosion becomes complicated.

Further, the plastic container of the gas lighter has a temperature of 70.degree.
Considering the experimental data that the gas that was destroyed at a temperature of about 80 ° C was blown out and the gas filled inside spouted, clothes were thrown into the dryer accidentally with the gas lighter in the pocket due to careless handling. However, in the case where the gas concentration in the dryer increases rapidly due to the gas ejected from the gas lighter, there is a problem that such a closed type dryer cannot handle it and the explosion cannot be reliably prevented. ing.

On the other hand, in order to surely prevent the danger of explosion,
A closed type dryer in which an inert gas such as nitrogen is filled is also known, but this type of dryer has a complicated structure for filling the inert gas and the manufacturing cost is extremely high. There is a problem that

The present invention has been made in view of the above problems, and can surely prevent an explosion due to a solvent vapor, can be used extremely safely, has a good solvent recovery rate, and has a simple structure and a low manufacturing cost. An object is to provide a drying device for clothes and the like.

[0010]

According to a first aspect of the present invention, there is provided a drying device for clothes and the like, comprising: a drying chamber having a drying drum;
An intake path having a heater connected to the upper part of the drying chamber,
An exhaust passage having a blower, which is communicated with a lower portion of the drying chamber and which is arranged in a substantially vertical shape; and an intake port for sucking outside air is provided on an inlet side of the intake passage and an outlet side of the exhaust passage is exposed to the atmosphere. An open outlet is provided to form an air passage from the inlet of the intake passage to the outlet of the exhaust passage through the drying chamber, and the continuous refrigerant pipe is provided in the exhaust passage above the blower. A plurality of coolers consisting of are arranged at intervals in the vertical direction, and the refrigerant cooled by the refrigerator is caused to flow downward from the refrigerant pipe of the cooler at the uppermost stage, and the exhaust path is It is connected to the solvent recovery path.

According to a second aspect of the present invention, there is provided an apparatus for drying clothes or the like according to the first aspect of the present invention, which is the apparatus for drying clothes or the like according to the first aspect, in which a connection path is provided to connect the outlet side of the exhaust path to the intake path. A circulation air passage is formed by the chamber, the exhaust passage, and the connection passage, and a first switching damper that opens and closes the exhaust passage to the connection passage is provided on the outlet side of the exhaust passage, and the intake passage heater is provided. An outside air inlet for introducing outside air is provided on the outlet side of the intake passage, and the outlet side of the intake passage is selectively opened and closed between the outside air inlet and the heater side in the vicinity of the outside air inlet of the intake passage. A second switching damper is provided.

According to a third aspect of the present invention, there is provided a clothes drying apparatus according to the first or second aspect, wherein a heater is provided between the coolers in the exhaust passage.

According to a fourth aspect of the present invention, there is provided an apparatus for drying clothes or the like according to any one of the first to third aspects, wherein the exhaust passage is provided with a baffle plate for adjusting air flow.

A drying apparatus for clothes or the like according to a fifth aspect of the present invention is the drying apparatus for clothes or the like according to any one of the first to fourth aspects, in which an exhaust duct for exhausting exhaust air is connected to an exhaust port of the exhaust passage. It is a thing.

According to a sixth aspect of the present invention, there is provided an apparatus for drying clothes or the like according to the fifth aspect, wherein a heat insulating material is attached to an exhaust duct.

According to a seventh aspect of the present invention, there is provided an apparatus for drying clothes or the like according to the fifth aspect, wherein a heater is provided near the exhaust port of the exhaust passage.

[0017]

In the drying apparatus for clothes and the like according to claim 1, when drying an article to be dried such as clothes washed by dry cleaning, air heated by a heater is sent to the drying chamber to dry the drying chamber. Evaporate the solvent contained in the material to be dried contained in the drum and evaporate the water content,
The air containing this solvent vapor and moisture is blown into a plurality of coolers by a blower and cooled by these coolers to liquefy and separate the solvent vapor together with the moisture, and the air is heated and dried in a drying chamber. Then, the solvent is sequentially passed through the exhaust path to recover the solvent, and is discharged into the atmosphere from the discharge port to keep the solvent vapor concentration in the drying device low.

The high temperature air blown by the blower is cooled stepwise by a plurality of coolers arranged at intervals in the vertical direction while rising, so that the cooling efficiency is improved. Airway resistance is reduced. Further, by circulating the refrigerant cooled in the refrigerator downward from the refrigerant pipe of the uppermost cooler, the temperature gradient of the plurality of coolers depends on the temperature of the air passing through each cooler. As it is formed, cooling is performed economically and efficiently.

According to a second aspect of the present invention, there is provided a device for drying clothes or the like,
During the drying process, the first switching damper closes the exhaust passage leading side and the connecting passage to cut off the circulation path, and the second switching damper closes the outside air introducing port to guide the heater to the intake chamber. The air heated by the heater is sequentially passed through the heater, the drying chamber and the exhaust passage, and is discharged into the atmosphere through the discharge port.

On the other hand, in the cooling process for finishing, the first switching damper is opened at a predetermined angle, the outlet side of the exhaust passage is communicated with the connecting passage to form a circulation path, and the second switching damper is used to open the outside air. The inlet is opened and the heater is shut off from the outlet side of the intake chamber, the first switching damper divides the air cooled by the uppermost cooler into two directions, and some of the cooled air is connected. While sending it to the drying room via the road,
By sending the outside air introduced from the outside air introduction port into the drying chamber, the drying chamber is efficiently cooled. At this time, a part of the air cooled by the cooler at the uppermost stage is discharged into the atmosphere through the discharge port, so that the solvent vapor concentration in the device can be kept low.

In the drying device for clothes or the like according to claim 3,
The air cooled by the lower cooler is heated again by the heater provided between the coolers and then cooled by the upper cooler, so that the solvent recovery rate can be further improved.

According to a fourth aspect of the present invention, there is provided a clothes drying apparatus.
An airflow adjusting baffle plate is provided in the exhaust path, and the airflow amount is optimally adjusted by setting the rotation speed of the blower using the arrangement direction of the baffle plate as a guide.

According to a fifth aspect of the present invention, in the clothes drying apparatus,
A working environment is improved by connecting an exhaust duct to the exhaust port of the exhaust path and discharging the exhaust containing the residual solvent after solvent recovery to the outdoors.

In the drying apparatus for clothes and the like according to the sixth aspect of the present invention, by attaching a heat insulating material to the exhaust duct, it is possible to prevent dew condensation of water in the exhaust cooled by the cooler during the summer season.

In the apparatus for drying clothes according to the seventh aspect of the present invention, a heater is provided in the vicinity of the exhaust port of the exhaust passage, and the exhaust gas cooled by the cooler is reheated, so that the exhaust duct is formed in the exhaust duct during the winter season. In addition to preventing freezing of water in the exhaust of
It surely prevents condensation of moisture in the exhaust during summer.

[0026]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.

Reference numeral 1 denotes a drying chamber. In the drying chamber 1, a substantially cylindrical drying drum 2 formed of punching metal or the like and having a large number of ventilation holes on its peripheral surface is rotatably provided.
An article to be dried such as clothes can be put in and out of the drying drum 2 through a front opening / closing door (not shown). A stirring blade 3 for stirring the material to be dried is provided in the drying drum 2.

Further, an intake port 4 is opened in the upper part of the drying chamber 1, and an intake port 6 open to the atmosphere is formed on the introduction side of an intake passage 5 communicating with the intake port 4. 6
A first heater 8 as a heater having a steam pipe 7 is arranged in the vicinity of.

Further, an exhaust port 9 is provided at the bottom of the drying chamber 1.
And an exhaust passage 10 is communicated with the exhaust port 9. The exhaust passage 10 passes through the lower portion of the drying chamber 1 and the drying chamber 1
It is provided in parallel with and in a substantially vertical shape. Also, this exhaust path
A discharge port 11 that is open to the atmosphere is formed on the lead-out side of 10, and the vicinity of the discharge port 11 of the exhaust passage 10 is connected to the intake passage 5 through a connecting passage 12.

Further, a blower is provided on the introduction side of the exhaust passage 10.
Between the blower 13 and the discharge port 11, two coolers 15 and 16 having a continuous refrigerant pipe 14 are vertically arranged with an interval L of, for example, 30 to 50 cm. ing.
The refrigerant pipes 14 of the coolers 15 and 16 are communicated with the refrigerator 17, and the water cooled by the refrigerator 17 or the refrigerant such as CFCs frozen / compressed is stored in the refrigerant pipe 14 of the upper cooler 15. It is supplied to the upper part and circulates through the refrigerant pipe 14 from the top to the bottom, that is, from the cooler 15 in the upper stage to the cooler 16 in the lower stage.

A solvent recovery passage is provided below the exhaust passage 10.
A solvent water separator 19 is connected to the solvent recovery path 18. The solvent water separator 19 has a solvent discharge port 21 and a water discharge port 22 which are separated from each other according to the specific gravity of the solvent and water.

Further, the exhaust passage 10 is provided with a Linton filter 23 on the suction side of the blower 13.

In the vicinity of the exhaust port 11 of the exhaust passage 10,
A first switching damper 24 that opens and closes the exhaust passage 10 to the connecting passage 12 is provided, and the first switching damper 24 is opened and closed by an air cylinder, a hydraulic cylinder, an electromagnetic device, or the like to open and close the connecting passage 12. It is adapted to open from a closed state to a predetermined angle α, for example, 45 °.

Further, an openable / closable outside air introduction port 25 for introducing outside air is provided on the outlet side of the intake passage 5 with respect to the first heater 8.
Is opened, and the intake passage 5 is provided near the outside air inlet 25 of the intake passage 5.
A second switching damper 26 that selectively opens and closes the outlet side of the valve to the outside air inlet 25 and the first heater 8 side of the intake passage 5 is provided. The second switching damper 26 is an air cylinder or a hydraulic cylinder. Alternatively, it can be opened and closed by switching with an electromagnetic device.

An adjusting valve 27 is provided on the steam pipe 7 of the first heater 8, and the adjusting valve 27 adjusts
The first heater 8 heats the air to a temperature according to the material to be dried.

Further, a substantially L-shaped exhaust duct 28 for exhausting the exhaust air is connected to the exhaust port 11 of the exhaust passage 10,
The exhaust duct 28 is provided so as to penetrate the outer wall 29, and the exhaust port 30 that opens to the outside air is provided on the outlet side of the exhaust duct 28.
Are formed.

Next, the operation of this embodiment will be described.

An object to be dried such as clothes washed with a petroleum dry cleaning solvent is put into the drying drum 2 of the drying chamber 1. Further, the connection path 12 is closed by the first switching damper 24 to block the outlet side of the exhaust path 10 from the connection path 12 and the outside air introduction port 25 for introducing the outside air of the intake path 5 to the second switching damper 26. Closed, and as shown by an arrow A, an air passage is formed from the suction port 6 of the suction passage 5 through the drying chamber 1 to the exhaust port 11 of the exhaust passage 10 to the exhaust port 30 of the exhaust duct 28. .

When the steam is circulated through the steam pipe 7 of the first heater 8 and the blower 13 is driven, the intake passage 5
The air heated by the first heater 8 is introduced into the drying chamber 1 to evaporate the petroleum-based dry cleaning solvent adhering to the material to be dried in the rotating drying drum 2 and also to remove water. Is evaporated.

Next, the evaporated solvent and water are sequentially introduced together with air to the lower cooler 16 and the upper cooler 15 of the exhaust passage 10, the solvent and the water are cooled and liquefied, and the liquefied solvent and the water Is discharged to the solvent recovery path 18, the solvent introduced into the solvent water separator 19 from this solvent recovery path 18 is separated by the difference in specific gravity with water and recovered from the upper solvent discharge port 21, and the water content is lower. It is discharged from the water outlet 22. Then, the air separated from the solvent and the water is discharged from the exhaust port 30 of the exhaust duct 28 into the outside air through the exhaust port 11, and the drying process is sequentially repeated to dry the material to be dried. At the same time, the solvent is recovered.

In this drying process, the air is finally discharged into the outside air from the exhaust port 30, so that the concentration of solvent vapor in the apparatus can be kept low and explosion can be surely prevented. Further, since the exhaust air discharged from the exhaust port 30 into the outside air in this drying process is cooled to a low temperature of, for example, about 5 ° C., even if the exhaust air contains some solvent vapor, it has little odor.

Further, the temperature of the air containing solvent vapor and water passing through the lower cooler 16 is as high as about 60 ° C., but it is cooled by the lower cooler 16 and liquefied, for example, 20 ° C. After passing through the gap between the coolers 15 and 16, the temperature becomes about room temperature, and is further liquefied by being cooled by the cooler 15 in the upper stage, and becomes a low temperature of, for example, about 5 ° C. and the exhaust duct 28 via the outlet 11. It is discharged from the exhaust port 30 of. Thus, the exhaust path
Air containing solvent vapor and water led to 10 is cooled and liquefied in two stages by coolers 15 and 16, so that cooling efficiency is improved,
For example, a good solvent recovery rate of 80% or more is obtained, and since the coolers 15 and 16 are arranged at the interval L, the air passage resistance is reduced and the exhaust air flows smoothly.

Further, since the refrigerant from the refrigerator 17 flows from the top to the bottom of the continuous refrigerant pipe 14, the temperature of the lower cooler 16 is higher than the temperature of the upper cooler 15. Since the temperature gradient is formed according to the temperature of the air passing through the cooler 15 in the upper stage (for example, 60 ° C.) and the temperature of the air passing through the cooler 16 in the lower stage (for example, 20 ° C.),
The circulating refrigerant can be efficiently and economically used for cooling the air.

When the cooling capacity of the refrigerator 17 is high, the coolers 15, 16 are used for the purpose of further increasing the solvent recovery rate.
The second heater 31 may be provided between them. For example, when the air can be cooled to about 5 ° C. by the lower cooler 16, the air cooled to about 5 ° C. is heated to about 10 to 20 ° C. by the second heater 31 as a heater. By heating again,
It is possible to increase the amount of the solvent that is cooled and liquefied by the upper cooler 15.

Further, depending on the length of the exhaust duct 28 connected to the exhaust port 11 of the exhaust passage 10, wind loss may occur and the amount of air passing through the exhaust passage 10 may fluctuate. Therefore, exhaust path 10
2 has a baffle plate 32 whose one end is pivotally supported on the discharge side of the blower 13 and which is pivoted in the vertical direction depending on the amount of air flow. As shown in FIG. A viewing window 35 marked with two marked lines 33 and 34 indicating the direction of arrangement of the baffle plate 32 of
By adjusting the frequency, resistance, etc. by inverter control so that the baffle plate 32 is placed between the marked lines 33, 34 when the device is installed, the rotation speed of the blower 13 is set. The air volume can be adjusted optimally. For example, in FIG. 2, when the baffle plate 32 is arranged below the reference line 34, the air volume is too small, and therefore the rotation of the blower 13 is arranged so that the baffle plate 32 is arranged between the reference lines 33 and 34. Set the number to ensure optimum air flow.

Further, a concentration sensor (not shown) for detecting the concentration of the solvent vapor is provided in the exhaust passage 10, and the rotation speed of the blower 13 is inverter-controlled by a signal from the concentration sensor to dry the drying chamber 1 The exhaust air volume may be adjusted according to the degree of drying of the material to be dried therein, that is, the amount of solvent vapor sent from the drying chamber 1.

On the other hand, when the cooling step for finishing clothes is performed after the drying step, the first switching damper 24 is opened to the predetermined angle α and the outlet side of the exhaust path 10 is connected to the connecting path.
12, the outside air inlet port 25 is opened by the second switching damper 26, and the outlet side of the intake passage 5 is connected to the first outside of the intake passage 5.
The heater 8 side is shut off, and the supply of steam to the steam pipe 7 of the first heater 8 is stopped.

At this time, the outlet side of the exhaust passage 10 is communicatively connected to the intake passage 5 through the connecting passage 12, and as shown by the arrow B,
A circulation air passage is formed by the intake passage 5, the drying chamber 1, the exhaust passage 10, and the connecting passage 12, and the air cooled to, for example, 5 ° C. on the outlet side of the exhaust passage 10 is transferred to the first switching damper 24. A portion of this cooled air, which is divided into directions, is discharged from the connecting passage 12 to the drying chamber 1.
In addition to being sent to the drying chamber 1, the outside air introduced from the outside air introducing port 25 is sent to the drying chamber 1 so that the drying chamber 1 can be efficiently cooled. Furthermore, the cooling efficiency of the drying chamber 1 can also be improved by blocking the lead-out side of the intake passage 5 from the first heater 8 side. Further, since a part of the cooled air on the outlet side of the exhaust passage 10 is discharged from the exhaust port 30 of the exhaust duct 28 into the outside air via the exhaust port 11, the concentration of solvent vapor in the device is lowered. It can be maintained and explosion can be reliably prevented.

In addition, during the summer season, when the exhaust air cooled by the cooler 15 in the upper stage passes through the exhaust duct 28, the moisture in the exhaust air is condensed to form water droplets, which fall from the exhaust port 30. On the other hand, in the winter season, on the other hand, water in the exhaust air cooled in the exhaust duct 28 may freeze. Therefore, a heat insulating material (not shown) may be attached to the exhaust duct 28 to prevent dew condensation in the summer. In addition, the exhaust path 10
Third as a heater having a steam pipe 36 near the exhaust port 11 of
The heater 37 is provided, and the exhaust air cooled by the third heater 37 is reheated. For example, the steam pipe 36 is provided with the adjusting valve 38, and the adjusting valve 38 is adjusted to cool the exhaust pipe. By maintaining the exhaust air at a constant temperature of, for example, about 20 ° C., it is possible to prevent freezing in winter and to reliably prevent dew condensation in summer.

In the above embodiment, the coolers 15 and 16 are arranged vertically, but the present invention is not limited to this, and three or more coolers are arranged at intervals in the vertical direction. Can be installed at

[0051]

According to the first aspect of the present invention, by discharging the exhaust air into the atmosphere, the concentration of solvent vapor can be kept low, explosion can be surely prevented, and it can be used extremely safely. Further, since the high temperature air sent by the blower rises and is gradually cooled by a plurality of coolers arranged at intervals in the vertical direction, the cooling efficiency is improved and a good solvent is improved. It is possible to obtain a recovery rate and reduce air passage resistance. Furthermore, by causing the refrigerant cooled in the refrigerator to flow downward from the refrigerant pipe of the cooler in the uppermost stage,
Since the temperature gradient of the plurality of coolers is formed according to the temperature of the air passing through each cooler, the cooling can be performed economically and efficiently. Furthermore, the structure of the device is simplified and the manufacturing cost is reduced as compared with the conventional closed type device.

According to the second aspect of the present invention, by switching the first switching damper and the second switching damper, the circulation path is shut off in the drying step, and the air heated by the heater is heated. , While sequentially passing through the drying chamber and the exhaust path and discharging into the atmosphere from the discharge port, in the cooling process for finishing, a circulation path is formed and part of the air cooled by the cooler at the top stage is The drying chamber can be efficiently cooled by sending it to the drying chamber through the connection path and sending the outside air introduced from the open outside air introduction port to the drying chamber. Also, in this cooling step, a part of the air is discharged into the atmosphere through the discharge port, so that the concentration of solvent vapor can be kept low and the explosion can be reliably prevented.

According to the third aspect of the invention, the air cooled by the lower cooler is reheated by the heater provided between the coolers and then cooled by the upper cooler. The solvent recovery rate can be improved.

According to the fourth aspect of the present invention, the baffle plate for adjusting the air flow rate is provided in the exhaust passage, and the rotational speed of the blower is set by using the arrangement direction of the baffle plate as a guide to optimally adjust the air flow rate. it can.

According to the fifth aspect of the present invention, the working environment can be improved by connecting the exhaust duct to the exhaust port of the exhaust path and discharging the exhaust containing the residual solvent after the solvent recovery to the outside.

According to the sixth aspect of the present invention, by attaching the heat insulating material to the exhaust duct, it is possible to prevent the dew condensation of the moisture in the exhaust cooled by the cooler in the summer or the like.

According to the invention described in claim 7, a heater is provided in the vicinity of the exhaust port of the exhaust passage to reheat the exhaust gas cooled by the cooler, so that the exhaust gas in the exhaust duct is exhausted during the winter season. It can prevent freezing of water and can surely prevent dew condensation of water in the exhaust gas during summer.

[Brief description of drawings]

FIG. 1 is a vertical cross-sectional view of a drying device showing an embodiment of the present invention.

FIG. 2 is a partially enlarged view of FIG.

[Explanation of symbols]

 1 Drying Room 2 Drying Drum 5 Intake Path 6 Intake Port 8 First Heater as a Heater 10 Exhaust Path 11 Exhaust Port 12 Connecting Path 13 Blower 14 Refrigerant Pipe 15, 16 Cooler 17 Refrigerator 18 Solvent Recovery Path 24 No. Switching damper 1 25 Outside air inlet 26 Second switching damper 28 Exhaust duct 31 Second heater 32 as heater 32 Baffle plate 37 Third heater as heater L Interval

Claims (7)

[Claims] 1. A drying chamber having a drying drum, an air intake passage communicating with an upper portion of the drying chamber and having a heater, and a ventilation chamber having a substantially vertical shape and communicating with a lower portion of the drying chamber. An exhaust port is provided, an intake port for sucking outside air is provided on the inlet side of the intake channel, and an exhaust port opening to the atmosphere is provided on the outlet side of the exhaust channel. An air passage leading to the exhaust port of the exhaust passage is formed, and in the exhaust passage, a plurality of coolers made of continuous refrigerant pipes are arranged at intervals in the vertical direction above the blower, A drying device for clothes or the like, characterized in that a refrigerant cooled by a refrigerator is caused to flow downward from a refrigerant pipe of a cooler at an uppermost stage, and the exhaust passage is connected to a solvent recovery passage. 2. A connection passage that connects the outlet side of the exhaust passage to the intake passage is provided, and a circulation air passage is formed by the intake passage, the drying chamber, the exhaust passage, and the connection passage, and the exhaust passage is led out. A first switching damper that opens and closes the exhaust passage to the connection passage is provided on a side, an outside air introduction port that introduces outside air is provided on a discharge side of the heater of the intake passage, and the outside air introduction of the intake passage is provided. The drying apparatus for clothes and the like according to claim 1, wherein a second switching damper is provided near the mouth to selectively open and close the outlet side of the intake passage between the outside air inlet and the heater side. 3. The drying apparatus for clothes or the like according to claim 1, wherein a heater is provided between the coolers in the exhaust passage. 4. The drying apparatus for clothes or the like according to claim 1, wherein a baffle plate for adjusting the air volume is provided in the exhaust passage. 5. The drying apparatus for clothes or the like according to claim 1, wherein an exhaust duct for exhausting the exhaust air is connected to an exhaust port of the exhaust passage. 6. The apparatus for drying clothes or the like according to claim 5, wherein a heat insulating material is attached to the exhaust duct. 7. The apparatus for drying clothes or the like according to claim 5, wherein a heater is provided near the outlet of the exhaust passage.