JP2003211102A - Steam washing device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a steam washing device where a washing tank can be effectively utilized by using multi-stage trays and an object to be washed is not contaminated again. <P>SOLUTION: This invention relates to the steam washing device provided with the washing tank which can be airtightly held and a plurality of trays 21 mounted in multi-stage inside the washing tank where the objects to be washed X are placed on the trays 21 and a steam washing is performed, characterized in that the trays 21 are so constituted that a condensed solvent at the time of steam washing can be dripped downwardly, and a slanted plate 220 is provided between the respective trays 21 located upwardly and downwardly so as not to allow the condensed solvent to drip from each tray 21 to the tray 21 located downwardly relative to each corresponding tray located upwardly. <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 steam cleaning apparatus, and more particularly to a steam cleaning apparatus that performs cleaning processing using a plurality of trays.

[0002]

2. Description of the Related Art Polychlorinated biphenyl (hereinafter referred to as "PCB") is excellent in stability, nonflammability, and electrical insulation, and therefore, in the past, capacitors and transformers (hereinafter referred to as "capacitors"). It was used as an insulating oil when making up. Since the PCB used in this way is not easily decomposed, it may accumulate in water, soil or the like after the used condenser or the like is disposed of, and enter the human body through food or the like.

As described above, since PCB is not easily decomposed and is harmful, its production or new use is currently prohibited. And after the toxicity was pointed out, PCB
Capacitors and the like using insulating oil containing (hereinafter, simply referred to as “insulating oil”) are stored and urgent processing is required.

Specifically, the capacitor or the like is composed of a main body, insulating oil, and a container for accommodating them, and the main body is composed of elements, insulators and other accessories.
Among these, the element is configured by winding a plurality of layers in a state where a belt-shaped electrode and a belt-shaped insulator are stacked.

When the above-mentioned capacitors and the like are discarded, the insulating oil extracted from the container is
It is required to surely decompose (detoxify) CB,
Conventionally, various treatment methods have been studied. In addition, regarding the containers and elements that make up capacitors, etc., even after the insulating oil is extracted, the insulating oil adheres to the container and the insulator of the element is impregnated with insulating oil. After removing it, it is necessary to dispose or reuse it in a safe condition.

Conventionally known methods for treating capacitors and the like contaminated by PCBs are separation methods such as vacuum heating separation in which PCBs are heated to vaporize and remove them, and solvent cleaning methods in which they are cleaned with a solvent. ing. In addition, pretreatment such as crushing, crushing, and cutting may be performed to facilitate cleaning.

As a solvent cleaning method, a vapor cleaning method is known in addition to the immersion cleaning method. In the steam cleaning, as a general rule, the steam cleaning is performed in a state where the object to be cleaned is housed in a cleaning tank whose airtightness is maintained. If the item to be cleaned is a small item, in order to effectively use the cleaning tank, steam-cleaning is performed with a plurality of mesh trays on which the item to be cleaned is stacked and placed on a grid-like shelf. It is common to do

[0008]

However, the above-mentioned prior art has the following problems.

In the steam cleaning according to the prior art, as described above, in order to effectively utilize the cleaning tank, a plurality of mesh trays are stacked and installed in the cleaning tank. With such a structure, The solvent, which is condensed and contaminated on the surface of the object to be cleaned, passes through the mesh tray and drops downward.
Then, even if the object to be cleaned on the upper tray is cleaned by steam cleaning, the object to be cleaned on the tray located below the upper tray is re-contaminated by the falling dirty solvent. There was a problem.

Therefore, the present invention has been made to solve the problem of steam cleaning according to the above-mentioned conventional technique, and the cleaning tank can be effectively used by using a plurality of trays, and the object to be cleaned is It is an object of the present invention to provide a steam cleaning device that does not re-contaminate.

[0011]

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems of the prior art, and includes a cleaning tank that can be maintained in an airtight state, and a plurality of cleaning tanks stacked in the cleaning tank. A vapor cleaning apparatus comprising a tray, and an object to be cleaned placed on the tray to perform vapor cleaning, wherein the tray is configured to be capable of dropping a condensed solvent at the time of vapor cleaning downward, A feature of the present invention is that a drip prevention unit is provided between the upper and lower trays so that the condensed solvent from the tray does not drip to the tray located therebelow.

In the vapor cleaning apparatus thus constructed, the drip prevention section is provided between each of the plurality of trays, and the drip prevention section is configured such that the condensed solvent from the upper tray is below the drip prevention section. It is configured not to drip onto the tray. Therefore, according to such a configuration, by performing the steam cleaning, the condensed solvent (condensed solvent that has been contaminated by cleaning) condensed on the cleaning target placed on each tray is dripped from each tray. Even if this is done, by providing the drip prevention portion, the condensed solvent is not dripped on the tray located therebelow. That is, according to the present invention, since the dirty condensed solvent from above does not drip and adhere to the object to be cleaned placed on the lower tray, recontamination of the object to be cleaned can be appropriately prevented. it can.

Further, in the steam cleaning apparatus according to the present invention, it is preferable that the drip prevention section is provided in order to drip the condensed solvent from each tray to the lower portion of the cleaning tank.

According to this preferred structure, the drip prevention unit drips the condensed solvent from each tray to the lower portion of the cleaning tank, so that re-contamination of the object to be cleaned placed on the tray below it can be prevented. Of course, since contaminated condensing solvent is directly collected in the lower part of the cleaning tank without passing through the side surface of the tray, it is possible to reuse the cleaning solvent while preventing unnecessary contamination. it can.

Further, in the steam cleaning apparatus according to the present invention, the drip prevention section is formed by using an inclined plate-shaped member, and the projection surface of the plate-shaped member is a plane of the tray located below the projection surface. It is preferable that the drip prevention part is configured to include the part.

According to this preferable configuration, the condensed solvent dropped on the plate-shaped member moves (flows down) along the inclination of the plate-shaped member and drops further downward from the end of the plate-shaped member. Becomes Then, the plate-shaped member, in a tilted state, the projection surface formed on the flat surface portion of the lower tray,
The tray is formed to be larger than the flat surface portion (the flat surface portion on which the object to be cleaned can be placed). Therefore, according to this preferable configuration, the condensed solvent dropped from the upper tray onto the plate-like member is not dropped onto the lower tray (the object to be cleaned) below it. It should be noted that if the plate-like member positioned higher is formed larger, the condensed solvent dropped from the end of each plate-like member can be dropped directly into the lower portion of the cleaning tank. . With such a configuration, as described above, the contaminated condensing solvent is directly collected in the lower portion of the cleaning tank without passing through the side surface of the tray, etc. It can be provided for use.

Further, in the steam cleaning apparatus according to the present invention, it is preferable that the tray is composed of a mesh member. Examples of the mesh member include wire mesh, grating, punching metal and the like.

According to this preferable structure, the condensed solvent produced when the object to be cleaned placed on the tray is cleaned by steam can be appropriately dropped below the tray. It is also preferable because it can ventilate the entire surface of the tray.

[0019]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a schematic view of a steam cleaning apparatus according to an embodiment of the present invention. As shown in FIG. 1, the steam cleaning apparatus according to the present embodiment is configured by using a cleaning tank 10 that can be maintained in an airtight state, an object mounting portion 20 provided in the cleaning tank 10, and the like. Has been done.

A cleaning solvent 11 can be stored in the lower portion of the cleaning tank 10, and a heating means 12 which functions to heat the cleaning solvent 11 is provided in the lower peripheral portion of the cleaning tank 10. Examples of the heating means 12 include an electric heater and a heat medium. That is, in the present embodiment, the heating means 12 such as an electric heater is used to wash the cleaning tank 1
The cleaning solvent 11 stored in the lower part of 0 is heated to form a solvent vapor phase in the internal space 13 of the cleaning tank 10.

Further, on the outer peripheral portion of the side surface of the cleaning tank 10, there is provided a cooling means including a cooling jacket 14 and the like capable of flowing in and out a cooling medium (for example, tap water).
As shown in FIG. 1, the cooling jacket 14 has an inflow portion 14A into which a cooling medium (tap water) can flow under.
And an outflow portion 14B capable of outflowing the cooling medium (tap water) from inside the cooling jacket 14. That is, in the present embodiment, the cooling medium is circulated in the cooling jacket 14 to cool the vicinity of the inner wall portion of the cleaning tank 10 to condense the solvent vapor and bring the vapor to almost atmospheric pressure to the outside. Prevents diffusion.

Further, a recovery inner wall portion 15 is provided on the inner peripheral portion of the cleaning tank 10 in order to properly recover the cleaning solvent condensed by the cooling jacket 14 or the like. The upper portion 15a of the cleaning tank 10 is open to the recovery inner wall portion 15, and the solvent vapor flowing from this portion is cooled and condensed by the cooling jacket 14. Then, the recovery inner wall portion 15
A recovery liquid outflow portion 15A is provided in the lower part of the recovery liquid outflow portion 15A, and the recovery liquid outflow portion 15A is provided in the lower part of the cleaning tank 10 (in the liquid phase of the cleaning solvent 11).
Is connected by using a pipe 15C. That is, the cleaning solvent recovered by the cooling jacket 14, the recovery inner wall portion 15 and the like is appropriately used by using the recovery liquid outflow portion 15A, the recovery liquid inflow portion 15B and the like.
It returns to the lower cleaning solvent 11 and is effectively reused.

Further, in the vapor cleaning apparatus according to the present embodiment, the cleaning solvent can be ejected from the spray injecting section 16 provided on the upper part of the cleaning tank 10 to the article mounting section 20. A cleaning solvent storage tank 31 that stores a new cleaning solvent is connected to the spray injection unit 16 via a pipe 33. Further, the pipe portion 33 is provided with a supply pump 32 for supplying the cleaning solvent in the cleaning solvent storage tank 31 to the spray injection unit 16. Further, if the spray cleaning is performed from the side surface as well, the cleaning efficiency is further improved.

Further, in the present embodiment, a waste liquid storage portion 41 for storing the contaminated solvent (waste liquid) used for steam cleaning is provided, and the waste liquid storage portion 41 is provided.
Is connected to a waste liquid discharge part 17 provided at the bottom of the cleaning tank 10 via a piping part 43.

Although not shown in FIG. 1, each pipe portion 33 is provided for connecting the cleaning solvent storage portion 31, the waste liquid storage portion 41 and the cleaning tank 10.
43 is provided with a flow meter, a valve (flow rate adjusting valve or the like), a pressure gauge, a thermometer, a bypass pipe, and the like, if necessary.

Further, in the present embodiment, the cleaning tank 10
A first thermometer 51 for measuring the temperature of the cleaning solvent 11 stored in the lower part of the tank, a second thermometer 52 for measuring the temperature of the solvent vapor phase in the internal space 13 of the cleaning tank 10, and an object to be cleaned. A third thermometer 53 is provided to measure the temperature (surface temperature or the like) of an object to be cleaned (not shown, which will be described later) that is placed opposite to the mounting portion 20. These thermometers 5
The information on the temperature at each location obtained by 1, 52, 53 is the control of the heating means 12 and the cooling means (heating temperature control, cooling temperature (cooling medium) when performing a specific cleaning process using the steam cleaning device. It is used to control the distribution amount).

In the steam cleaning apparatus according to the present embodiment, the object-to-be-cleaned mount 20 is installed on the support 18 in the cleaning tank 10. In this state, the object-to-be-cleaned mount 20 in the cleaning target is placed. Steam cleaning and spray cleaning of the object to be cleaned are performed. The support 18 enables vapor to rise and condensate to drip. For example, it is configured as a lattice-shaped shelf.

Next, a specific structure of the object mounting portion constituting the steam cleaning apparatus according to this embodiment will be described. Here, FIG. 2 shows a schematic view of the article mounting portion. Further, FIG. 3 is a schematic perspective view of the tray and the spacer which form the article mounting portion.

As shown in FIG. 2, the object-to-be-cleaned placing portion 20 according to the present embodiment is stacked in multiple layers with trays 21 (21a, 21b, 21c) configured to allow the object X to be cleaned. Spacers 2 provided between these trays 21
2 (22a, 22b). Specifically, as shown in FIG. 2, the support base 1 in the cleaning tank 10 is
8, the tray 21a is arranged at the lowermost stage, and the spacer 22a, the tray 21b, the spacer 22b, and the tray 21c are stacked on the tray 21a in this order, and the object to be cleaned placement portion 2 is stacked.
0 is configured.

Further, each spacer 22 is shown in FIG.
It is configured as shown in FIG. Specifically, the upper and lower frames are joined by the upper and lower joining members 226, and the inclined plate 220 (corresponding to the "dripping prevention portion" of the present invention) is provided therein. The upper and lower frames have the same configuration, and the left member 221, the right member 222, and the central member 225 are connected by the front member 223 and the rear member 224 to form a rectangular shape (in this embodiment, two A frame having a shape in which rectangles are connected to each other is formed.
In FIG. 3 (a), the lower member is given the symbol "A", and the upper member is given the symbol "B" to distinguish each member. More specifically, in the present embodiment, the inclined plates 220 are provided so as to be inclined in the same direction, respectively, and the rear member 2 that is an upper frame member.
One end of the inclined plate 220 is fixed to 24B, and the other end opposite to the one end is fixed to a front member 223A which is a lower frame member.

Each tray 21 is shown in FIG.
It is configured as shown in (b). Specifically, the left side plate member 211, the right side plate member 212, the front plate member 213, and the rear plate member 214 are connected to each other to form one rectangular frame (tray frame).
The tray main body 210 having a mesh is fixed to the bottom of the tray frame. In this embodiment, a plurality of plate members 211, 212, 21
Although the case where the tray frame is configured by using 3,214 has been described, the present invention is not limited to this configuration, and may be configured by using a wire mesh or the like as necessary.

Further, regarding the relationship between the tray 21 and the spacer 22, when the tray 21 and the spacer 22 are stacked to form the object-to-be-cleaned placing portion 20, the inclined plate 22 is used.
Tray 21 whose projection plane of 0 is located below the spacer
Each of the spacers 22 is formed so as to include the flat surface portion of. That is, when looking up from each tray 21, the tray 21 and the spacers 22 are formed and provided so that the other trays 21 located above are blocked by the inclined plate 220 and cannot be seen. Has been. In the present embodiment, the tray 21 and the spacer 22
In a state in which the and are alternately stacked, the projection surface of the inclined plate 220 and the tray main body 210 are formed to substantially overlap with each other, and the condensed solvent dropped on the inclined plate 220 has a lower tray 21 ( At least the tray 21 and the spacer 22 are provided so as not to come into contact with at least the objects to be cleaned on the lower tray.

In the above description of FIG. 3, the notation such as "left and right" and "front and rear" attached to each member is defined for convenience of explanation of each member, and the actual arrangement position of each member and the like. Is not limited to these notations (left and right, front and back, etc.).

Since the steam cleaning apparatus according to this embodiment is configured as shown in FIGS. 1 to 3 described above, it functions as follows.

First, in this embodiment, the tray 21
And the spacers 22 are alternately laminated, and the cleaning target object mounting portion 20 (see FIG. 2) in which the cleaning target object X is mounted on each tray 21 is installed in the cleaning tank 10.

Next, the cleaning solvent 11 is heated by the heating means 12 provided at the lower outer periphery of the cleaning tank 10. When the cleaning solvent 11 is heated and reaches the boiling point, a solvent vapor phase is formed in the internal space 13 of the cleaning tank 10. That is, the article mounting part 20 is included in the solvent vapor phase.

When such a solvent vapor phase is formed, then the solvent vapor is condensed on the surface of the article X to be cleaned placed on each tray 21 (tray body 210). That is, at the time of this condensation, the dirt is dissolved or dispersed, and the dirty condensed solvent passes through the mesh of the tray main body 210 and is dropped to the lower part of each tray 21.

Next, the dirty condensed solvent is dropped on the spacers 22 provided below the trays 21. For example, as shown in FIG.
The contaminated condensed solvent dropped from the object X to be cleaned on c is dropped onto the spacer 22b below (in the direction of arrow X1) through the mesh of the tray body 210. Then, the dropped condensed solvent moves along the inclination of the inclined plate 220 forming the spacer 22b, and finally from the lower end portion of the inclined plate 220 to the outside of the object-to-be-cleaned mounting portion 20 (of the cleaning tank 10). It will be dripped in the lower part) (see arrow X2 in FIG. 2).
Although not shown in FIG. 2, the same phenomenon as described above occurs in the other trays 21 and the other spacers 22, and the condensate condensate is contaminated by the spacers 2 located below.
It will be dripped outside the to-be-cleaned object mounting part 20 (lower part of the cleaning tank 10) via 2.

Since the solvent vapor in the upper part of the cleaning tank 10 is cooled and condensed by using the cooling means (cooling jacket 14 etc.), the diffusion of the solvent vapor is appropriately prevented.

Further, in the steam cleaning apparatus according to the present embodiment, in order to further enhance the cleaning effect, in addition to the above-mentioned steam cleaning (for example, after steam cleaning), spray cleaning such as spraying a new cleaning solvent is performed. It is being carried out. In the steam cleaning, when the object to be cleaned rises to the steam temperature, the cleaning generally does not proceed (however, the element is not included). Therefore, spray cleaning is performed, and at the same time as cleaning, the member is cooled and steam cleaning is performed again. This operation is repeated depending on the degree of contamination. Specifically, the new cleaning solvent stored in the cleaning solvent storage tank 31 is supplied to the spray injecting section 16 using the supply pump 32 and the pipe section 33, and the object to be cleaned is placed from the spray injecting section 16. Spray cleaning is performed by spraying a cleaning solvent on the object X to be cleaned placed on the section 20. According to such a configuration, by spraying a new cleaning solvent, the cleaning effect of the object to be cleaned is further enhanced.

Since the steam cleaning apparatus according to this embodiment is constructed and functions as described above, the following effects can be obtained.

First, in the present embodiment, the spacers 22 are provided between the plurality of trays 21 provided,
The condensed solvent from the upper tray 21 is configured not to drip to the lower tray. Therefore, according to such a configuration, by performing the steam cleaning, the condensed solvent (condensed solvent that has been contaminated by cleaning) condensed on the object to be cleaned placed on each tray 21 is removed from each tray 21. Even if dropped, the condensed solvent is not dropped onto the tray 21 located therebelow by the inclined plate 220 of the spacer 22. Therefore, according to the present embodiment, the dirty condensing solvent from above does not drip and adhere to the object to be cleaned placed on the lower tray 21, so that recontamination of the object to be cleaned is appropriately prevented. be able to.

Further, in this embodiment, each tray 2
Each tray 21 and spacers 22 are provided so that the condensed solvent from No. 1 is dropped to the lower portion of the cleaning tank 10. Therefore, according to such a configuration, recontamination of the cleaning target placed on the tray 21 therebelow can be prevented.

Further, in this embodiment, the spacer 2
2 is formed by using the inclined plate 220, and the projection surface of the inclined plate 220 forming the spacer 22 is the spacer 22.
Of the tray 21 located below the tray (the tray body 2
10) is included. Therefore, according to the present embodiment, the condensed solvent dropped on the inclined plate 220 of the spacer 22 moves along the inclination of the inclined plate 220,
It will be dripped further downward from the end of the spacer 22. At this time, the inclined plate 220 is formed such that the projection surface formed on the plane portion of the lower tray 21 is larger than the tray main body portion 210 of the tray 21. Therefore, according to the present embodiment, the condensed solvent dropped from the upper tray 21 to the spacer 22 is not dropped to the lower tray 21 (upper cleaning object), and re-contamination of the cleaning object is prevented. It can be properly prevented.

Further, in the present embodiment, the tray main body 210 of the tray 21 on which the object to be cleaned is placed is constructed by using a mesh member. Therefore, according to such a configuration, the condensed solvent generated when the object to be cleaned placed on the tray body 210 is cleaned by vapor is appropriately dropped below the tray 21 to clean the object to be cleaned. It can be carried out.

Further, in the present embodiment, each spacer 22 has a skeleton portion formed by joining a plurality of members,
The inclined plate 220 fixed to this is used. That is, the spacer 22 according to the present embodiment does not have a relatively large flat surface portion such as a side wall or a bottom portion except the inclined plate 220. Therefore, according to the present embodiment, the spacer 22 does not hinder the diffusion of the solvent vapor phase formed by heating the cleaning solvent 11 below the cleaning tank 10,
The solvent vapor appropriately contacts the object X to be cleaned on the tray 21, and the vapor cleaning is effectively performed.

Further, in the present embodiment, since the spray cleaning can be performed in addition to the steam cleaning, the cleaning effect can be further enhanced by appropriately combining these to clean the object to be cleaned. Is possible.
Further, as in the case of performing the steam cleaning, the contaminated solvent is generated from the cleaning target on each tray 21 even when performing the spray cleaning, but as described above, in the cleaning apparatus according to the present embodiment, Spacer 2 between each tray 21
Since 2 is provided, re-contamination of the object to be cleaned on each tray 21 can be appropriately prevented even during spray cleaning.

Further, in the present embodiment, although the kind of the cleaning solvent and the like have not been particularly described, the cleaning solvent used in the cleaning apparatus according to the present invention is not limited to any kind. Therefore, when cleaning the components such as the capacitor, it is preferable that the solubility of PCB or the like is high, and therefore it is possible to use a fluorine-based organic solvent or a chlorine-based organic solvent. Considering the fact that in addition to the solubility of PCB, it is also excellent in explosion-proof and nonflammability, it is preferable to use perchlorethylene, and in consideration of the environment, etc.
It is preferable to use a hydrocarbon solvent.

Further, in the present embodiment, the steam cleaning time, the number of steam cleanings, the spray cleaning time, the number of spray cleanings, etc. were not particularly described, but these times, the number of times, etc., depend on the condition of the object to be cleaned. Set appropriately together,
It can be changed.

The present invention is not limited to the above embodiment, and various modifications other than those described above can be made without departing from the spirit of the present invention.

In the above-described embodiment, the object to be cleaned placing section 20 is the tray 2 having the rectangular tray body section 210.
1 and the spacers 22 formed so as to correspond to the shape of the tray 21 are alternately laminated, but the present invention is not limited to this structure, and the tray (tray The shapes of the main body portion and the like) and the spacers (tilted plate and the like) can be appropriately changed.

Therefore, for example, as shown in FIG. 4, a spacer and a tray having a circular shape may be stacked to form the cleaning object mounting portion. Here, FIG.
The schematic perspective view of the spacer which comprises the to-be-cleaned material mounting part concerning other embodiment is shown, and FIG.4 (b) shows the schematic perspective view of the tray which comprises the to-be-cleaned material mounting part concerning other embodiment. It is a thing. As shown in FIG. 4A, the spacer 52
Is a lower member 521A formed in a circular shape (ring shape)
The upper member 521B and the upper member 521B are joined together by a vertical joining member 526, and a circular (disc-shaped) or elliptical (ellipsoidal) inclined plate 520 is provided therein. Further, as shown in FIG. 4B, the tray 51 is configured by fixing a cylindrical frame body 511 and a circular (disc-shaped) tray main body portion 510 having a mesh at the bottom of the frame body 511. ing.

With the trays 51 and the spacers 52 formed as described above, as in the case of the embodiment described with reference to FIG. 1 to FIG. Can be configured. The tray 51 and the spacer 52 have the mesh-shaped tray main body 510 and the inclined plate 520 similarly to the rectangular tray 21 and the spacer 22. Various effects similar to those of the described embodiment can be obtained.

In the above embodiment, the case where the size of the tray main body and the size of the inclined plate projection surface in the inclined state are substantially the same has been described, but the present invention is not limited to this structure. If the condensed solvent or the like does not drip from each tray to the tray below, the size of the inclined plate forming each spacer does not need to be substantially the same as the size of the tray main body.

Further, in the above embodiment, the case where all the inclined plates constituting the spacer have the same size has been described, but the present invention is not limited to this configuration. For example, if the spacers located higher are formed larger, the condensed solvent dropped from the end of each spacer can be dropped directly into the lower portion of the cleaning tank. With this configuration, the condensate condensing solvent can be directly collected in the lower part of the cleaning tank without passing through the side surface of the tray, etc., so that the cleaning solvent can be reused while preventing unnecessary contamination. It becomes possible to serve.

Further, in each of the above embodiments, the case where the drip preventing portion is the plate-like inclined plates 210 and 510 has been described, but the present invention is not limited to this structure and is provided between the trays. As long as it can prevent the condensed solvent from dripping onto the lower tray, it may have any shape. Therefore, for example, a corrugated plate or a mountain-shaped plate may be used to configure the drip prevention unit.

Further, in each of the above embodiments, the case where the tray and the spacer are separate bodies has been described.
The present invention is not limited to this configuration and may be integrated (for example, the tray 21c and the spacer 22) as needed.
b) may be fixed). That is, the tray may have a wire mesh-shaped tray main body at an intermediate position and a drip prevention section (an inclined plate or the like) below the tray. At this time, it is preferable that the side plate above the wire net is formed by using a plate member or a wire net to prevent the object to be washed from falling, and below the wire net (so-called drip prevention part side). With regard to the above, it is preferable to use a skeleton member, a wire mesh, or the like to provide good air permeability.

In the above embodiment, the case where the object-to-be-cleaned mounting portion having the spacer according to the present invention is installed in the cleaning tank and the object to be cleaned is subjected to steam cleaning and spray cleaning has been described. However, the present invention is not limited to this configuration. Therefore, if necessary, with respect to the article mounting portion having the spacer according to the present invention,
Other cleaning methods may be applied. Even when another cleaning method is used, the contaminated solvent from each tray does not adhere to the object to be cleaned on the lower tray, so that recontamination of the object to be cleaned can be prevented.

[0060]

As described above, in the steam cleaning apparatus according to the present invention, the cleaning object mounting portion for mounting the cleaning object is
It is configured by using a tray on which the article to be cleaned is placed and a spacer provided between the stacked trays. Therefore, according to the present invention, the contaminated solvent from each tray drops onto the spacer and does not adhere to the article to be cleaned on the tray below. Therefore, according to the present invention, it is possible to obtain a steam cleaning apparatus in which the cleaning tank can be effectively used by using a plurality of trays and the object to be cleaned is not re-contaminated.

[Brief description of drawings]

FIG. 1 is a schematic diagram of a steam cleaning apparatus according to an embodiment of the present invention.

FIG. 2 is a schematic view of an object-to-be-cleaned placing portion which constitutes the steam cleaning apparatus shown in FIG.

3A and 3B are schematic views of a spacer and the like that form the object to be cleaned placement portion shown in FIG. 2, FIG. 3A is a schematic perspective view of the spacer, and FIG. 3B is a schematic perspective view of the tray. It is a figure.

4A and 4B are schematic views of a spacer and the like that form an article mounting portion according to another embodiment, FIG. 4A is a schematic perspective view of the spacer, and FIG. 4B is a schematic perspective view of the tray. It is a figure.

[Explanation of symbols]

10 ... Washing tank, 11 ... Washing solvent, 12 ... Heating means, 13
… Internal space (solvent vapor phase), 14… Cooling jacket, 1
4A ... inflow part, 14B ... outflow part, 15 ... collection inner wall part, 1
5A ... collected liquid outflow portion, 15B ... recovered liquid inflow portion, 16 ... spray spraying portion, 17 ... waste liquid discharge portion, 18 ... support base 20 ... cleaning object placing portion, 21 ... tray, 22 ... spacer 31 ... cleaning solvent Storage tank, 32 ... Supply pump, 33 ... Piping part 41 ... Waste liquid storage part, 43 ... Piping part 51 ... Tray, 52 ... Spacer 210, 510 ... Tray body part, 220, 520 ... Inclined plate

   ─────────────────────────────────────────────────── ─── Continued front page    F term (reference) 3B201 AB42 BB03 BB13 BB14 BB22                       BB82 BB95 CD22                 4K053 PA01 QA04 QA07 RA04 RA08                       RA32 RA33 SA04 TA13 TA22                       XA08 XA11 XA14 XA45 YA10

Claims (4)

[Claims] 1. A steam cleaning in which a cleaning tank that can be kept airtight and a plurality of trays that are stacked in the cleaning tank are placed, and an object to be cleaned is placed on the tray to perform steam cleaning. In the apparatus, the tray is configured to be able to drip the condensed solvent at the time of vapor cleaning, and the trays located above and below each other so that the condensed solvent from each tray does not drip to the tray located therebelow. A vapor cleaning device characterized in that a drip prevention unit is provided between the trays. 2. The vapor cleaning apparatus according to claim 1, wherein the dripping prevention unit is provided to dripping the condensed solvent from each tray to the lower portion of the cleaning tank. 3. The drip prevention part is configured by using an inclined plate-shaped member, and the projection surface of the plate-shaped member includes the flat surface part of the tray located below the projection surface. The steam cleaning device according to claim 1 or 2, wherein 4. The vapor cleaning apparatus according to claim 1, wherein the tray is configured by using a mesh member.