JP4007602B2 - Method and apparatus for cleaning object to be cleaned - Google Patents

Description

The present invention relates to a cleaning apparatus that can perform liquid cleaning and steam cleaning of an object to be cleaned at low cost and promptly while reducing the influence on the environment.

JP, 14-177904, A Conventionally, as a washing method of a thing to be washed, it divides roughly, a liquid washing method which carries out washing by directly contacting a washing liquid with a thing to be washed, and a cleaning liquid is vaporized and contacted with a thing to be washed, There is a steam cleaning method in which steam is condensed on the surface of an object to be cleaned. Usually, these two methods are often used together. As one of the methods, as shown in Patent Document 1, a plurality of cleaning tanks are prepared, one of which is a liquid cleaning tank, the other is a steam cleaning tank, and liquid cleaning is completed in the liquid cleaning tank. A method is used in which an object to be cleaned is moved to a steam cleaning tank to perform steam cleaning.

The other method is a method in which liquid cleaning and vapor cleaning are performed while the object to be cleaned is placed in a fixed position without moving. In this method, liquid cleaning is performed in one tank, and then the cleaning liquid is extracted into a reserve tank, and cleaning steam is introduced into the cleaning tank after the cleaning liquid is extracted to perform the steam cleaning of the object to be cleaned.

However, multiple cleaning tanks are prepared, one of which is a liquid cleaning tank, the other is a steam cleaning tank, and the object to be cleaned that has been liquid cleaned in the liquid cleaning tank is moved to the steam cleaning tank. In the method of steam cleaning, the object to be cleaned is exposed to the outside air during movement, so that the solvent that is the cleaning liquid volatilizes and diffuses to cause environmental pollution, or if the cleaning liquid is a flammable solvent, it will ignite. It has the disadvantage of being accompanied by danger. In addition, in order to move the object to be cleaned that has been liquid-cleaned in the liquid-cleaning tank to the steam-cleaning tank without exposing it to the outside air, it is necessary to make the apparatus large or make the mechanism complicated and expensive. It has the following disadvantages.

In addition, after cleaning the liquid, the cleaning liquid in the cleaning tank is extracted into a spare tank, and the cleaning steam is introduced into the cleaning tank after the cleaning liquid is extracted to perform the steam cleaning of the object to be cleaned. It takes a lot of time to switch between and steam cleaning, and it is possible to perform either steam cleaning or liquid cleaning while providing two tanks, a cleaning tank and a spare tank. Since it cannot be performed simultaneously, the cleaning efficiency is poor.

The problem to be solved is that when liquid cleaning and steam cleaning are used together in the cleaning of an object to be cleaned, solvent vapor is not diffused to the outside and the environment is not polluted. It is intended to perform efficient cleaning while using a low-cost, enabling an inexpensive and quick cleaning operation.

In the present invention, one of a plurality of cleaning tanks for cleaning an object to be cleaned is filled with a cleaning liquid to perform liquid cleaning of the object to be cleaned, and a steam generating mechanism is connected to the other cleaning tank to perform steam cleaning. After completion of the steam cleaning, the object to be cleaned is dried and the vacuum is released. Then, the object to be cleaned is taken out, and a new object to be cleaned next is stored in the other cleaning tank where the steam cleaning is performed. After the other cleaning tank is connected to the decompression mechanism and depressurized, the open / close valve that connects one cleaning tank and the other cleaning tank is opened, the cleaning liquid in one cleaning tank is transferred to the other cleaning tank, and the other In addition to performing liquid cleaning in one of the cleaning tanks and repeatedly performing steam cleaning by introducing steam from the steam generation mechanism into one cleaning tank, the object to be cleaned can be transferred between multiple cleaning tanks. while keeping in place, that performs immersion cleaning and steam cleaning with the cleaning solution It is those made as a butterfly.

Further, an apparatus embodying the above method includes a plurality of cleaning tanks for cleaning an object to be cleaned, a decompression mechanism connected to the plurality of cleaning tanks via a control valve, and a control valve for the plurality of cleaning tanks. A steam generating mechanism connected via the on-off valve and an on-off valve for controlling communication between the plurality of cleaning tanks. After the pressure reducing mechanism depressurizes one of the plurality of cleaning tanks connected by the on-off valve, the on-off valve is opened. In this way, the cleaning liquid stored in the other cleaning tank can be transferred to one of the cleaning tanks, and the object to be cleaned is immersed and cleaned with the cleaning liquid without being transferred between the plurality of cleaning tanks. It is possible to perform steam cleaning .

  Further, a filtration filter may be disposed before and after the on-off valve that communicates the plurality of cleaning tanks with each other.

In the cleaning apparatus of the present invention, when liquid cleaning and steam cleaning are used together in cleaning of an object to be cleaned, it is not necessary to move the object to be cleaned between cleaning processes, and solvent vapor is diffused to the outside. Thus, the environment is not polluted, and liquid cleaning and steam cleaning are efficiently performed in parallel while using a small number of cleaning tanks so as to enable an inexpensive and quick cleaning operation.

The embodiment of the present invention will be described below with reference to FIGS. 1 and 2. (1) and (2) are a plurality of cleaning tanks, in which objects to be cleaned (3) are housed and cleaned. . Any number of the plurality of cleaning tanks (1) and (2) can be connected and used, but in this embodiment, two cleaning tanks (1) and (2) are used.
This will be described in the case of using. The two cleaning tanks (1) and (2) have first and second control valves (
4) Connect the pressure reducing mechanism (6) via (5). The pressure reducing mechanism (6) may be individually connected to all of the plurality of cleaning tanks (1) and (2), but one pressure reducing mechanism (6) is connected to the plurality of cleaning tanks (1) (
It is possible to obtain an efficient and inexpensive product by connecting to 2).

Similarly, the steam generation mechanism (10) is connected to the plurality of cleaning tanks (1) and (2) via the third and fourth control valves (7) and (8). This steam generation mechanism (10) may be individually connected to all of the plurality of cleaning tanks (1) and (2), but one steam generation mechanism (10) is connected to a plurality of cleaning tanks (1) ( It is possible to obtain an efficient and inexpensive product by connecting to 2).

Further, the plurality of cleaning tanks (1) and (2) communicate with each other via the on-off valve (11), and the cleaning liquid (12) filled therein can be mutually flowed while being controlled by the on-off valve (11). ing. However, the on-off valve (11) is normally closed, and the flow of the cleaning liquid (12) between the plurality of cleaning tanks (1) and (2) is stopped. The flow of the cleaning liquid (12) is achieved by opening one of the cleaning tanks (1) and (2) by depressurizing one of the cleaning tanks (1) with the pressure reducing mechanism (6) and then opening the on-off valve (11). The cleaning liquid (12) stored in the other cleaning tank (2) can be transferred to one cleaning tank (1) due to a pressure difference.

In addition, a filtration filter (13) is arranged before and after the on-off valve (11) communicating with the plurality of cleaning tanks (1) and (2), and the plurality of cleaning tanks (1) and (2) are mutually connected. The circulating cleaning liquid (12) is filtered. In addition, an ultrasonic transducer (14) is installed in each cleaning tank (1) (2) to enable ultrasonic cleaning. An ultrasonic oscillator (14) is connected to the ultrasonic vibrator (14). This ultrasonic oscillator may be provided for each ultrasonic vibrator (14), or a plurality of ultrasonic vibrators may be provided. It is good also as what is connected to one ultrasonic oscillator (14). The plurality of cleaning tanks (1) and (2) are each provided with a vacuum release valve (15) and (16), and the cleaning tanks (1) and (2) decompressed by the pressure reducing mechanism (6) communicate with the outside air. Vacuum release is possible.

In order to clean the object to be cleaned (3) with the cleaning apparatus constructed as described above, as shown in FIG. 1, the two cleaning tanks (1) and (2) for cleaning the object to be cleaned (3) are used. Then, the other cleaning tank (2) is filled with the cleaning liquid (12) and the object to be cleaned (3) is subjected to liquid cleaning. And one washing tank (1) performs steam washing.
This steam cleaning is a steam generation mechanism (1) connected to one cleaning tank (1) via a third control valve (7).
Steam is introduced from 0). In this steam cleaning, the solvent is evaporated at a low temperature by reducing the pressure in one cleaning tank (1) by the pressure reducing mechanism (6) connected via the first control valve (4). This is effective in preventing the risk of ignition and the deformation of the object to be cleaned (3) having low heat resistance due to heating.

The liquid cleaning and steam cleaning of the object to be cleaned (3) are generally performed after the liquid cleaning, and the switching between the liquid cleaning and the steam cleaning is performed by the following operation. First, in the above process, the object to be cleaned (3) that has been subjected to steam cleaning in one cleaning tank (1) is dried by bumping drying or the like, and then the vacuum release valve (15) is opened, The inside of one washing tank (1) is taken out from the atmospheric pressure.
And the to-be-cleaned object (3) which should be wash | cleaned newly is arrange | positioned in one washing tank (1). Next, the on-off valve (11), the second, third and fourth control valves (5), (7), (8) and the vacuum release valve (15) are closed, and the first control valve (4) is opened. By operating the pressure reducing mechanism (6), the pressure in one cleaning tank (1) is reduced. After this pressure reduction, the pressure difference is utilized by opening the on-off valve (11) and the vacuum release valve (16) between the one washing tank (1) and the other washing tank (2). As shown in 2, the other washing tank (
The cleaning liquid (12) of 2) can be transferred to one cleaning tank (1).

By transferring the cleaning liquid (12), immersion cleaning and steam cleaning are performed with the cleaning liquid (12) while the object to be cleaned (3) is kept in place without being transferred between the cleaning tanks (1) and (2). I can do it. For this reason, it is possible to prevent danger caused by the solvent vapor leaking to the outside and adverse effects on the environment. Moreover, workability can be improved as compared with the case where the object to be cleaned (3) is moved between the cleaning tanks (1) and (2).

After the transfer of the cleaning liquid (12) from the other cleaning tank (2) to the one cleaning tank (1) is completed, the second
The fourth control valve (5) (8) is opened, the first and third control valves (4) (7) and the on-off valve (11) are closed, and the other washing tank (2) is opened. Steam is introduced from the steam generation mechanism (10) and steam cleaning is performed. In this steam cleaning, the vacuum release valve (16) is closed and the pressure reducing mechanism (6) is operated, so that the other cleaning tank (2)
The inside may be decompressed and steam cleaning may be performed. By repeating the above steps, the object to be cleaned (3) removes the object (3) to be cleaned from the one or the other cleaning tank (1) (2) and the cleaning tank (1). ) (2) Other than storing new objects to be cleaned (3), it is not necessary to open the cleaning tanks (1) and (2). Equipment such as a tank is not required, and an inexpensive device can be obtained.

When performing liquid cleaning and steam cleaning of the object to be cleaned (3), it is not necessary to move the object to be cleaned (3) between the cleaning tanks (1) and (2) when switching between liquid cleaning and steam cleaning. In addition to being able to reduce the speed of work and the impact on the environment, it is possible to simplify the apparatus and obtain an inexpensive cleaning apparatus.

Sectional drawing of the Example which is performing liquid cleaning and steam cleaning. Sectional drawing of the state which switched liquid cleaning and steam cleaning.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 One washing tank 2 The other washing tank 3 To-be-washed object 4 1st control valve 5 2nd control valve 6 Depressurization mechanism 7 3rd control valve 8 4th control valve 10 Steam generation mechanism 11 On-off valve 12 Cleaning liquid 13 Filtration filter

Claims (4)

Complete the steam cleaning by filling the cleaning liquid into one of the multiple cleaning tanks that clean the object to be cleaned and cleaning the liquid to be cleaned, and connecting the steam generation mechanism to the other cleaning tank to perform the steam cleaning. Then, after the object to be cleaned is dried and the vacuum is released, the object to be cleaned is taken out, and the new object to be cleaned next is stored in the other cleaning tank where the steam cleaning is performed and the other cleaning tank Is connected to a decompression mechanism and decompressed, and then the on-off valve that connects one cleaning tank and the other cleaning tank is opened, the cleaning liquid in one cleaning tank is transferred to the other cleaning tank, and the other cleaning tank is used. By performing liquid cleaning and repeatedly performing steam cleaning by introducing steam from the steam generation mechanism into one cleaning tank, the object to be cleaned is kept in place without being transferred between multiple cleaning tanks. while, characterized in that performing the immersion washing and steam cleaning with the cleaning solution Method of cleaning a cleaning product. A plurality of cleaning tanks for cleaning the object to be cleaned, a pressure reducing mechanism connected to the plurality of cleaning tanks via a control valve, a steam generation mechanism connected to the plurality of cleaning tanks via a control valve, It consists of an open / close valve that controls the communication between the cleaning tanks.After one of the multiple cleaning tanks connected by this open / close valve is depressurized by the decompression mechanism, it is stored in the other cleaning tank by opening the open / close valve. The cleaning liquid can be transferred to one cleaning tank, and it is possible to perform immersion cleaning and steam cleaning with the cleaning liquid while keeping the object to be cleaned in place without transferring it between multiple cleaning tanks. An apparatus for cleaning an object to be cleaned. 2. The method for cleaning an object to be cleaned according to claim 1, wherein a filtration filter is disposed before and after the on-off valve that allows the plurality of cleaning tanks to communicate with each other. The apparatus for cleaning an object to be cleaned according to claim 2, wherein a filtration filter is disposed before and after the on-off valve that allows the plurality of cleaning tanks to communicate with each other.

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