JP2003275695A - Washing apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To enhance the washing effect by preventing the generation of a stain caused by dew condensation due to a temperature fall and the adhesion of waste refuse or dust in the open air when a powder solid of carbon dioxide is sprayed on an object to be washed to perform washing. <P>SOLUTION: A washing apparatus is constituted so that powdery solids 57, 58 and 59 of carbon dioxide are formed from liquid carbon dioxide and sprayed on objects 60, 61 and 62 to be washed to remove the contaminant having adhered to the surface of the object to be washed. This washing apparatus is equipped with a heating means 7 for heating the peripheries of the objects 60, 61 and 62 to be washed and a washing chamber 2 isolating the peripheries of the objects 60, 61 and 62 to be washed from the open air. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cleaning device for cleaning an object to be cleaned, and more particularly to a cleaning device for cleaning using carbon dioxide composed of powdery solid.

[0002]

2. Description of the Related Art FIG. 5 shows a cleaning device for removing a dirt adhering to the surface of an object to be cleaned by producing a powdery solid of carbon dioxide from a liquid of carbon dioxide and spraying it on the object to be cleaned. In this cleaning apparatus, a pipe 103 is connected to a liquefied carbon dioxide gas container (cylinder) 101 via a carbon dioxide high pressure valve 102. Nozzles 104, 105, and 106 are attached to the pipe 103 at appropriate intervals, and powdery solids 107 and 1 generated from liquefied carbon dioxide are generated.
08 and 109 are respectively connected to the nozzles 104, 105 and 10
6 to spray on the objects to be cleaned 60, 61, 62 for cleaning.

Similarly, a person holds a hand-held nozzle, blows carbon dioxide to the object to be cleaned, and removes dirt and the like adhering to the object to be cleaned from the surface thereof. ing.

[0004]

In cleaning using carbon dioxide, since the carbon dioxide powder solid is at a low temperature, the temperature of the object to be cleaned can be reduced by spraying the carbon dioxide powder solid onto the object to be cleaned. And this temperature drop
After the cleaning is completed, moisture contained in the ambient air is condensed, and water drops adhere to the surface of the object to be cleaned. Then, there is a problem that the adhered water drops are left as stains on the surface of the object to be cleaned by drying.

In addition, when the carbon dioxide powder solid is sprayed on the object to be cleaned, fine dust or dust contained in the surrounding air may be entrained and adhered to the surface of the object to be cleaned. is doing. Since such a phenomenon is caused, the cleaning effect using carbon dioxide is not sufficient.

The present invention has been made in consideration of such conventional problems, and it is possible to obtain a sufficient cleaning effect even in the case of cleaning using carbon dioxide in the form of powder solid. An object is to provide a cleaning device.

[0007]

In order to achieve the above object, the cleaning apparatus of the present invention produces a powdery solid of carbon dioxide from a liquid of carbon dioxide, and sprays the powdery solid onto an object to be cleaned. A cleaning device for removing dirt adhering to the surface of an object to be cleaned, comprising: heating means for heating the area around the object to be cleaned; and a cleaning chamber for isolating the area around the object to be cleaned from the outside air. .

According to the first aspect of the present invention, the heating means heats the periphery of the object to be cleaned to prevent the dew condensation of the moisture in the surrounding air, so that the stain caused by the dew condensation does not occur. Further, since the cleaning chamber isolates the periphery of the object to be cleaned, fine dust or dust in the surrounding air does not adhere to the object to be cleaned. By these, the surface of the object to be cleaned can be sufficiently cleaned.

A second aspect of the present invention is the cleaning apparatus according to the first aspect, wherein the heating means is a heating blower for blowing heated air to the object to be cleaned.

According to the second aspect of the present invention, since the heating blower blows the heated air onto the object to be cleaned, it is possible to quickly heat the object to be cleaned and effectively prevent the occurrence of dew condensation on the object to be cleaned. Therefore, it is possible to reliably prevent the generation of stains.

A third aspect of the present invention is the cleaning apparatus according to the first aspect, wherein the cleaning chamber removes fine dust and the like from the supplied air and / or moisture in the supplied air. And a dryer for removing water vapor.

According to the third aspect of the present invention, the purifier removes dust and the like from the air to obtain clean air, and the dryer removes moisture and water vapor in the air. It is possible to prevent dust and the like from adhering to the object to be cleaned and prevent the generation of stains.

[0013]

BEST MODE FOR CARRYING OUT THE INVENTION The present invention will be specifically described below with reference to the illustrated embodiments. In the respective embodiments, the same members are designated by the same reference numerals and correspond to each other.

(First Embodiment) FIG. 1 shows a cleaning apparatus 1 according to a first embodiment of the present invention, in which a cylinder 56 serving as a supply source of carbon dioxide powder solid and objects to be cleaned 60, 61, 62.
Is provided with a cleaning chamber 2 that isolates the air from the surroundings, an air cleaner 3, and a heater 7.

The cylinder 56 stores liquefied carbon dioxide, and the pipe 5 is connected via the carbon dioxide high-pressure valve 55.
By connecting No. 4, it is possible to adjust the supply amount of carbon dioxide supplied to the pipe 54. The pipe 54 is inserted into the cleaning chamber 1, and a plurality of nozzles 51, 52, 53 are attached to the tip of the inserted pipe 54. The nozzles 51, 52, 53 are installed at the middle height of the cleaning chamber 1.

The cleaning chamber 2 is hermetically sealed except for the lower openings 8 and 9, and the objects to be cleaned 60, 61, and
By setting 62, the objects to be cleaned 60, 61,
Isolate 62 from the environment. The openings 8 and 9 are for discharging dirty air, fine dust, dust, and the like from the cleaning chamber 2.

The air purifier 3 is attached to the upper part of the cleaning chamber 2 and has a filter 10 and a fan 11. The fan 11 drives the fan to take in the outside air, and the filter 10 filters the taken-in air to remove dust and dirt in the outside air. Therefore, the air cleaner 3 is
Clean air 4 containing no dust is supplied into the cleaning chamber 2.

The heater 7 has a plate structure and is installed on the floor surface of the cleaning chamber 2 so that the objects 60, 61 and 62 to be cleaned are set thereon. 40 for heater 7
The objects to be cleaned 60, 6 are generated by generating heat at about 100 ° C.
Heat around 1,62.

In this embodiment, by driving the air purifier 3 in advance, dirty air, dust, and the like are transferred from the lower openings 8 and 9 to the outside of the cleaning chamber 2 as shown by arrows 5 and 6. It is discharged and the inside of the cleaning chamber 2 is kept in a clean state free from dust and the like. Also, 40 to 100 ° C
6 to be cleaned on the heater 7 set to an arbitrary temperature of
0, 61, and 62 are installed to keep these temperatures at the same level.

Thereafter, the carbon dioxide high-pressure valve 55 attached to the cylinder 56 is opened to remove carbon dioxide powder solids 57, 58, 59 from the tips of the plurality of nozzles 51, 52, 53 and the object to be cleaned 60. , 61, 62
Spray on. By spraying carbon dioxide powder solids 57, 58, and 59 onto the objects to be cleaned 60, 61, and 62 in this manner, the dirt adhering to the surfaces of the objects to be cleaned 60, 61, and 62 is cleaned.

In this embodiment, carbon dioxide powder solids 57, 58, 59 having a low temperature are transferred to the objects 60, 6 to be cleaned.
Even if it is sprayed on 1, 62, the object to be cleaned has been warmed, so that water vapor does not condense on the object to be cleaned, and stains due to dew condensation are not generated, and the cleaning chamber 2
Since the inside is filled with clean air, dust and the like do not adhere to the object to be cleaned. Therefore, the surfaces of the objects to be cleaned 0, 61, 62 can be cleaned cleanly.

(Second Embodiment) FIG. 2 shows a second embodiment of the present invention. In this embodiment, in addition to the configuration of the first embodiment, the pipe portion 16 is connected to the air cleaner 3 above the cleaning chamber 2 via the connection portion 15. Piping section 16
A dryer 17 for drying air is connected to the air conditioner, and air is supplied to the dryer 17 from a compressor (not shown) or the like via a pipe portion 18.

The operation of this embodiment is the same as that of the first embodiment, but the external air taken in from the air cleaner 3 is supplied from the compressor (not shown) or the like through the dryer 17 so that the cleaning chamber The air 4 supplied into the cleaning chamber 2 is dried, whereby the inside of the cleaning chamber 2 is dried.
Then, the objects to be cleaned 60, 61, 62 are cleaned in this dry state.

In such an embodiment, the first embodiment
As described above, not only the temperature of the objects to be cleaned 60, 61, 62 is increased, but also the inside of the cleaning chamber 2 is dried so that the surface of the objects to be cleaned 2 can be more reliably prevented from being condensed during cleaning. The adhered dirt can be removed.

(Third Embodiment) FIG. 3 shows a third embodiment. In this embodiment, instead of the heater 7 having the plate structure used in the second embodiment, nozzles 51, 52, 53 are provided.
Heating blowers 21, 22, 23 are arranged as heating means in the vicinity of each of the above. Each heating blower 21,
22 and 23 act to heat the air that has passed through the air purifier 3 and blow the heated air onto the objects to be cleaned 60, 61 and 62. The heating blowers 21 to 23 capable of blowing heated air are installed.

Therefore, in this embodiment, since the temperature of the objects to be cleaned 60, 61, 62 cannot be lowered as in the case of the first and second embodiments, during cleaning by spraying carbon dioxide powder solids. It is possible to prevent dew condensation, and it is possible to remove stains adhering to the surface of the object to be cleaned without generating stains.

(Embodiment 4) In this embodiment, nozzles 51, 52 for spraying carbon dioxide powder solids,
A modification of 53 will be described with reference to FIG.

In this embodiment, each nozzle 51, 5
Cartridge heaters 31, 32, 33 (not shown) for heating are installed at the tips of 2, 53 (nozzle 53 is not shown). Each cartridge heater 31, 32, 33
Is heated by a controller (not shown) to an arbitrary temperature at the tip of the corresponding nozzle.

In this embodiment, the nozzles 51, 52, 53 are used when the carbon dioxide powder solid is sprayed.
It is possible to prevent the water from being cooled and the nozzles 51, 52 and 53 to condense, and the accumulated water droplets drop onto the objects to be cleaned 60, 61 and 62. As a result, it is possible to perform cleaning without generation of stains.

[0030]

As described above, according to the first to third aspects of the present invention, even when cleaning is performed using carbon dioxide powder solid, stains due to water droplets are not left in the surrounding air. It is possible to remove the dirt adhering to the surface of the object to be cleaned without adhering the fine dust and dust contained in the.

[Brief description of drawings]

FIG. 1 is a front view of a first embodiment of the present invention.

FIG. 2 is a front view of the second embodiment.

FIG. 3 is a front view of the third embodiment.

FIG. 4 is a front view of a nozzle according to a fourth embodiment.

FIG. 5 is a front view showing a conventional cleaning device.

[Explanation of symbols]

1 cleaning device 2 washing room 3 air purifier 51, 52, 53 nozzles 57,58,59 Carbon dioxide powder solid 60,61,62 Items to be cleaned

Claims (3)

[Claims] 1. A cleaning device for removing dirt adhering to the surface of an object to be cleaned by producing a powdery solid of carbon dioxide from a liquid of carbon dioxide and spraying the powdered solid onto the object to be cleaned, A cleaning device comprising: a heating unit that heats the periphery of the object to be cleaned; and a cleaning chamber that isolates the periphery of the object to be cleaned from the outside air. 2. The cleaning apparatus according to claim 1, wherein the heating unit is a heating blower that blows heated air to the object to be cleaned. 3. The cleaning chamber is equipped with a cleaner for removing fine dust from the supplied air and / or a dryer for removing water and water vapor in the supplied air. The cleaning device according to claim 1.