JPH0720199U - Low-pressure dryer with low-pressure solvent recovery device - Google Patents

Abstract

(57) [Summary] (Modified) [Purpose] In the field of dry cleaning, clothes such as clothes to be dried are dried three-dimensionally and safely at low temperature, and they cause pollution when they are dried. The evaporative solvent is prevented from being discharged to the outside, and the evaporative solvent is cooled, condensed and liquefied safely in the cooling and recovery section to be recovered for reuse. [Structure] Blower 3, cooling recovery unit 1, heating unit 8 in drying chamber 4
Is a closed-type dryer in which the above are connected by a passage 2. A vacuum pump 5 or the like is connected to the drying chamber 4 in order to discharge the air in the drying chamber 4 and reduce the atmospheric pressure. Further, in the drying chamber 4, a hanger hook 6 is attached so that clothes or the like of the article to be dried 7 can be three-dimensionally dried.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to drying in the field of dry cleaning. This is because in dry cleaning, clothes (7) to be dried can be efficiently dried at a low temperature, and solvent can be collected without damaging clothes (7) to be dried. It is a low-temperature three-dimensional dryer with a low-pressure solvent recovery device that can dry safely.

[0002]

[Prior art]

 In the conventional dry cleaning field, when drying clothes to be dried, hot air from a heater that uses steam as a heat source is blown into a rotating basket containing clothes to be dried, and the hot air is blown. It was a drying method in which the air was discharged to the outside together with the evaporated gas from clothes and the like to be dried, and the evaporated gas caused air pollution and caused a lot of heat loss.

[0003]

[Problems to be solved by the device]

 In the conventional drying method, when it was desired to shorten the drying time in order to improve work efficiency, the drying time was shortened by raising the drying temperature. Therefore, in the clothes and the like of the article to be dried (7) that were made of a material weak to heat, there was an obstacle such as shrinkage due to the high heat. In addition, since clothes such as clothes to be dried (7) are put in a rotating basket and dried, mechanical striking force is also applied to clothes such as clothes to be dried (7). It was torn or caught. Also, in recent years, where environmental pollution has become a problem, there is also a dryer that collects the cleaning solvent remaining on the clothes (7) after cleaning, which is not left in the drying process. It is used, but due to the low flash point of the cleaning solvent, it is always very dangerous at normal drying temperatures.

[0004]

[Means for Solving the Problems]

 It is a hermetic dryer in which a blower (3), a cooling recovery unit (1) and a heating unit (8) are connected to a drying chamber (4) by a passage (2). In the drying chamber (4), the air in the drying chamber (4) is discharged by a vacuum pump (5) or the like to lower the atmospheric pressure in the drying chamber (4). Further, in the drying chamber (4), a hanger hook (6) is provided so that clothes and the like to be dried (7) can be three-dimensionally dried. In the cooling recovery unit (1), the cleaning solvent contained in the clothes and the like of the dried material (7) evaporated by drying is liquefied and recovered by cooling / condensing due to the temperature difference in the cooling recovery unit (1). It is a low-temperature three-dimensional dryer with a solvent recovery device.

[0005]

[Action]

 The air in the drying chamber (4) is discharged to the outside by a vacuum pump (5) or the like, the air pressure in the drying chamber (4) is lowered, and then the inside of the drying chamber (4) is heated, whereby the drying chamber (4) is heated. The clothes and the like to be dried (7), which are three-dimensionally hung in () with a hanger hook (6), are efficiently dried even at a low temperature without applying a mechanical striking force. The solvent that has been heated in a low pressure and evaporated from the clothes or the like of the material to be dried (7) is guided by the circulation blower (3) in the direction of the arrow → to the cooling recovery section (1) in the passage (2). The solvent evaporated in the cooling recovery section (1) is condensed and liquefied due to the temperature difference. The remaining gas from which the evaporated solvent has been condensed and liquefied and the solvent content has been removed in the cooling recovery unit (1) is heated by passing through the heating unit (8) and enters the drying chamber (4) again to continue drying. At this time, in the drying chamber (4), air is exhausted by the vacuum pump (5) and the atmospheric pressure is lowered, so that the evaporation rate of the solvent from the clothes (7) on the article to be dried (7) becomes fast, which is large. Compared with general drying under atmospheric pressure, it is possible to perform sufficient drying even at low temperature.

[0006]

[Embodiment] An embodiment of a low-pressure three-dimensional dryer with a low-pressure solvent recovery device of the present invention will be described below with reference to FIG. It is a hermetic dryer in which a blower (3), a cooling recovery unit (1) and a heating unit (8) are connected to a drying chamber (4) by a passage (2). A vacuum pump (5) is connected to the drying chamber (4) in order to discharge the air in the drying chamber (4) and reduce the atmospheric pressure. Further, in the drying chamber (4), a hanger hook (6) is attached so that clothes and the like of the article to be dried (7) can be three-dimensionally dried. In the drying chamber (4), the clothes and the like of the article to be dried (7) are heated, and the vaporized solvent evaporated from the clothes and the like of the article to be dried (7) is cooled and collected by the blower (3) as shown by arrow →. The solvent introduced to the section (1) and evaporated in the cooling recovery section (1) is cooled and condensed due to the temperature difference, and is liquefied and recovered. The remaining gas from which the solvent component has been removed is guided to the heating section (8) as indicated by the arrow → and heated, and then enters the drying chamber (4) again to continue the drying.

[0007]

[Effect of device]

 The present invention has the structure described above, and there is a strong demand for pollution problems, safety, and cost reduction in the dry cleaning field. Currently, clothes, etc. to be dried are three-dimensionally safe and efficient at low temperatures. It is a low-temperature three-dimensional dryer with a low-pressure solvent recovery device that is good and can recover the solvent to reduce pollution problems and costs.

[Brief description of drawings]

FIG. 1 is a diagram showing a simple structure of the present invention.

[Explanation of symbols]

 1 is a cooling / collecting unit 2 is a passage 3 is a blower 4 is a drying chamber 5 is a vacuum pump 6 is a hanger hook 7 is clothes to be dried 8 is a heating unit

Claims (1)

[Scope of utility model registration request] 1. A passage (2) is provided from the upper part of a drying chamber (4), and a blower (3), a cooling section recovery section (1) and a heating section (8) are provided in the passage (2), and a heating section (2) is provided. It is a hermetic dryer in which the passage (2) from 8) is connected to the drying chamber (4). Further, in the drying chamber (4), the air in the drying chamber (4) is discharged by a vacuum pump (5) or the like in order to reduce the atmospheric pressure in the drying chamber (4). And drying room (4)
A hanger hook (6) is provided inside the clothes (7) so that clothes or the like to be dried can be three-dimensionally dried. Further, in the cooling recovery unit (1), with a low pressure solvent recovery device, which recovers the cleaning solvent contained in the clothes and the like of the dried object (7) evaporated by drying by cooling and condensing due to temperature difference. It is a low temperature three-dimensional dryer.