WO2006129402A1

WO2006129402A1 - Method for cleaning object to be cleaned and its apparatus

Info

Publication number: WO2006129402A1
Application number: PCT/JP2006/303039
Authority: WO
Inventors: Masahide Uchino
Original assignee: Japan Field Co., Ltd.
Priority date: 2005-06-01
Filing date: 2006-02-21
Publication date: 2006-12-07
Also published as: JP4225985B2; JP2006334504A; CN101184559A; KR20080014965A; KR101191827B1

Abstract

[PROBLEMS] To perform immersion cleaning under reduced pressure, steam cleaning under reduced pressure, or drying under reduced pressure using a small pressure tubular body. When cleaning work is performed while containing an object to be cleaned in a small pressure tubular body having openings at the upper and lower ends. The cleaned object can be taken out by simply elevating the pressure tubular body after the cleaning, and the post-treatment of the cleaned object is facilitated. [MEANS FOR SOLVING PROBLEMS] A pressure tubular body (1) having openings (2, 3) at the upper and lower ends and not connected with a steam piping, a vacuum piping, or the like has a strength sufficient to withstand against pressure reduction when an object (4) to be cleaned and contained inside while closing the openings (2, 3) at the upper and lower ends is subjected to immersion cleaning under reduced pressure, steam cleaning under reduced pressure, or drying under reduced pressure. The openings (2, 3) at the upper and lower ends of the pressure tubular body (1) can be closed with pressure lids (11, 12) which can be opened/closed, and the pressure lids (11, 12) are connected with a pressure reduction mechanism (114) and/or a steam generation mechanism (15).

Description

Specification

Method and apparatus for cleaning object to be cleaned

Technical field

[0001] The present invention relates to a method for cleaning an object to be cleaned and a cleaning apparatus used in the method, and the object to be cleaned is immersed and washed by a small-sized and light weight cleaning apparatus, as well as under reduced pressure immersion. The object to be cleaned, which does not require a cleaning tank, a vacuum steam cleaning tank, a vacuum drying tank, etc., can be subjected to vacuum immersion cleaning, vacuum steam cleaning, or vacuum drying.

Background art

Patent Document 1: Japanese Patent Laid-Open No. 5-123658

Conventionally, cleaning of an object to be cleaned is performed by immersing the object to be cleaned in a cleaning liquid or spraying a cleaning liquid and by condensing cleaning vapor in contact with the object to be cleaned. Steam cleaning methods exist. As a liquid cleaning method, a method under normal pressure and a vacuum immersion cleaning method are known. This vacuum immersion cleaning method is performed by storing the cleaning liquid and the object to be cleaned in a large pressure-resistant vacuum tank, and allows degassing in the cleaning liquid. This has the advantage that the cleaning solution can penetrate into the surface and the effect of ultrasonic cavitation can be enhanced.

[0004] Further, as the steam cleaning method, a vacuum steam cleaning method is known. This vacuum steam cleaning method is performed by inserting an object to be cleaned contained in a cleaning apparatus into a large pressure-resistant vacuum tank as shown in Patent Document 1, and a flammable high-boiling solvent at a low temperature. It has the advantage that it can be boiled to safely obtain cleaning steam.

[0005] In addition, as a method of drying the object to be cleaned, natural drying, hot air drying by blowing hot air, or vacuum drying performed by placing the object in a reduced-pressure atmosphere, etc. It has been known. This vacuum drying method is performed by inserting an object to be cleaned into a large pressure-resistant vacuum tank as shown in Patent Document 1, and boiling a flammable high-boiling solvent adhering to the object to be cleaned at a low temperature. And let it dry safely. This reduced-pressure drying method can reduce the risk of ignition and solvent diffusion compared to hot air drying, etc. In hot air drying, etc., it has the advantage of preventing the occurrence of spots that are likely to occur.

Disclosure of the invention

Problems to be solved by the invention

[0006] However, in order to perform vacuum steam cleaning and vacuum drying with the above-described conventional technology, a large pressure-resistant vacuum chamber connected with piping for supplying cleaning steam, piping connected to a decompression mechanism, etc. Is required. However, this vacuum tank is expensive, and the equipment cost is high and the weight is large, and piping for supplying cleaning steam, piping connected to the decompression mechanism, etc. are connected to the vacuum chamber. Therefore, it has a drawback that it cannot be easily carried and used.

[0007] The present invention is intended to solve the above-described problems. Open the upper and lower ends and do not connect the above pipes! Using a small pressure-resistant cylinder, the object to be cleaned is immersed under reduced pressure. It can be used as a vacuum tank for cleaning, vacuum steam cleaning, or vacuum drying, and it is easy to carry a pressure-resistant cylinder and perform easy vacuum steam cleaning and vacuum drying. To do.

Means for solving the problem

[0008] The present invention is an invention of a method for solving the problems as described above, wherein both upper and lower ends are openings, and the openings are covered and sealed so as to be openable by a pressure-resistant lid, and a steam supply pipe and a decompression pipe The object to be cleaned is housed in a pressure-resistant cylinder that is not connected to the object, and the object to be cleaned is subjected to vacuum immersion cleaning, vacuum steam cleaning, or vacuum drying.

[0009] In addition, an apparatus for carrying out the above method includes a pressure-resistant cylinder that is open at both upper and lower ends and is not connected to a steam supply pipe and a decompression pipe, and a pressure-resistant lid that can seal the openings at both the upper and lower ends of the pressure-resistant cylinder The pressure-resistant cylinder body is sealed with a pressure-resistant lid body and has a pressure-resistant strength that can withstand the reduced pressure when the object to be cleaned is subjected to reduced pressure immersion cleaning, reduced pressure steam cleaning or reduced pressure drying. .

[0010] The pressure-resistant lid may be formed by connecting a pressure reducing mechanism and / or a steam generating mechanism.

[0011] Further, the pressure-resistant cylinder may be formed by installing a mounting portion on which an object to be cleaned can be mounted and a cleaning liquid can be circulated. The invention's effect

[0012] Since the present invention is configured as described above, when performing vacuum immersion cleaning, vacuum steam cleaning, or vacuum drying, a large vacuum tank is not required, and vacuum immersion cleaning or vacuum reduction is performed using a small pressure cylinder. Steam cleaning or vacuum drying can be performed. For this reason, it is possible to perform vacuum immersion cleaning, vacuum steam cleaning, or vacuum drying easily and inexpensively. Also, do not connect the steam supply pipe and the decompression pipe with the upper and lower ends as openings! 洗浄 Since the object to be cleaned is stored in a small pressure-resistant cylinder, the small pressure-resistant cylinder is used after cleaning. The object to be cleaned can be taken out only by raising the body, and post-processing of the object to be cleaned after the cleaning is completed becomes easy. In addition, if a mounting portion capable of flowing the cleaning liquid is formed in the pressure-resistant cylinder, it is possible to use the object to be cleaned as a cleaning rod.

Brief Description of Drawings

FIG. 1 is a cross-sectional view showing a first embodiment of the present invention.

FIG. 2 is a cross-sectional view of a pressure-resistant cylinder.

[Figure 3] Perspective view of pressure-resistant cylinder

FIG. 4 is a sectional view showing a second embodiment of the present invention.

FIG. 5 is a sectional view showing a third embodiment of the present invention.

FIG. 6 is a sectional view showing a fourth embodiment of the present invention.

FIG. 7 is a sectional view showing a fifth embodiment of the present invention.

Explanation of symbols

1 Pressure-resistant cylinder

2 opening

3 opening

4 Object to be cleaned

5 Cleaning solution

6 Placement section

11 Pressure-resistant lid

12 Pressure-resistant lid

14 Pressure reducing mechanism 15 Steam generation mechanism

Example 1

Hereinafter, an embodiment of the present invention will be described with reference to FIG. 1. (1) is a pressure-resistant cylinder, and has a cylindrical shape, a rectangular tube shape, and the like with openings (2) and (3) at both upper and lower ends. In addition, the steam supply pipe and decompression pipe are not connected at all. In addition, in the direction of the bottom inside the pressure-resistant cylinder (1), a placement part (6) that can place the object to be cleaned (4) and that allows the flow of the cleaning liquid (5) is installed using a stainless steel net or the like. is doing. The pressure-resistant cylinder (1) is made of stainless steel, etc., and the openings (2) and (3) at both the upper and lower ends are sealed and the object to be cleaned (4) is subjected to vacuum steam cleaning or decompression. In the case of drying, it has a pressure strength that can withstand the reduced pressure. Further, flanges (8) and (9) for placing an airtight packing (7) such as an O-ring project from the outer periphery of the openings (2) and (3). In addition, as the cleaning liquid (5) used in the present invention, a flammable solvent, a non-flammable solvent, water and other liquids can be arbitrarily selected according to the cleaning purpose.

[0016] Further, the openings (2) and (3) of the pressure-resistant cylinder (1) can be hermetically closed with a pressure-resistant lid (11X12). This pressure-resistant lid (11X12) covers the openings (2) and (3) of the pressure-resistant cylinder (1) through an airtight packing (7) such as an O-ring. The pressure-resistant cylindrical body (1) is provided with pressure resistance that is not damaged when the inside of the pressure-resistant cylinder (1) is depressurized. In addition, this pressure-resistant lid (11X12) has pressure resistance, and it is sufficient if it can seal the opening (2) (3). The lid (12) may be a top plate of the mounting table (13) that performs a certain operation as shown in FIG.

[0017] The pressure-resistant lid (11X12) covers a plurality of pressure-resistant cylinders (1) having different diameters as long as the openings (2) and (3) of the pressure-resistant cylinder (1) can be sealed. It can be large enough to be sealed. In addition, this pressure-resistant lid (11X12) is connected to either one or both of the pressure-reducing mechanism (14) and the steam generating mechanism (15) as shown in Fig. 1 to reduce the pressure inside the pressure-resistant cylinder (1). Or supply of cleaning steam. The lower pressure-resistant lid (12) is equipped with an ultrasonic transducer (16), and when the cleaning liquid (5) is stored in the pressure-resistant cylinder (1), the ultrasonic liquid of the object to be cleaned (4) Cleaning is possible.

[0018] Further, the steam generation mechanism (15) provided with the heater (17) is supplied with steam via the first control valve (18). Washing steam can be supplied into the pressure-resistant cylinder (1) which is connected to the lower pressure-resistant lid (12) by the supply pipe (10) and sealed by the upper and lower pressure-resistant lids (11X12). In addition, a reserve tank (20) containing cleaning liquid (5) is placed between the first control valve (18) of the steam generation mechanism (15) and the lower pressure-resistant lid (12). ) To supply the cleaning fluid (5) into the pressure-resistant cylinder (1) and replenish the cleaning fluid (5) to the steam generator 15). Further, a decompression mechanism (14) having a solvent recovery function is connected between the steam generation mechanism (15) and the first control valve (18) via a third control valve (22). The pressure reducing mechanism (14) is connected to the upper pressure-resistant lid (11) through the fourth control valve (23) by the vacuum pipe (19), so that the pressure-resistant cylinder (1) can be depressurized.

[0019] In the configuration as described above, the opening (3) at the lower end of the pressure-resistant cylinder (1) can be used for subjecting the object to be cleaned (4) to vacuum immersion cleaning, vacuum steam cleaning, vacuum drying and the like. Is placed on the lower pressure-resistant lid (12) via the airtight packing (7), and the opening (3) at the lower end is sealed. Next, place the object to be cleaned (4) on the liquid-permeable mounting part (6), seal the upper opening (2) with the upper pressure-resistant lid (11), and use the fourth control valve (23 ) Is opened and the decompression mechanism (14) is activated. After the pressure reducing cylinder (1) is depressurized by the operation of this pressure reducer 14), the second control valve (21) is opened, and the reserve tank (1) is utilized using the negative pressure of the pressure resistant cylinder (1). 20) Quickly introduce the cleaning liquid (5) into the pressure-resistant cylinder (1).

[0020] After this introduction, the depressurization mechanism (14) is further operated to degas the cleaning liquid (5) to enhance the penetration of the cleaning liquid (5) into the object to be cleaned (4) and the ultrasonic cavity effect. Then, the ultrasonic vibrator (16) is operated to perform ultrasonic liquid cleaning. After the ultrasonic liquid cleaning is completed, the cleaning liquid (5) is returned to the reserve tank (20), and then the second control valve (21) is closed. Next, the first control valve (18) is opened, and the cleaning steam is introduced into the pressure-resistant cylinder (1) from the steam generation mechanism (15) to perform steam cleaning. This steam cleaning may be performed in an atmospheric pressure atmosphere, but in the present embodiment, the pressure-reducing cylinder (1) is placed in a reduced pressure state, and the reduced pressure steam cleaning is performed.

[0021] In this decompression steam cleaning, the steam in the steam generation mechanism (15) is introduced into the pressure-resistant cylinder (1) by opening the first control valve (18) and operating the decompression mechanism (14). Do it by things. In addition, after the vacuum steam cleaning is completed, the first control valve (18) is closed, the fourth control valve (23) is opened, and the pressure reducing mechanism (14) is operated, so that the pressure-resistant cylinder (1) The inside of the object to be cleaned (4) can be dried by bumping under reduced pressure by rapidly depressurizing the inside. After the vacuum drying is completed, the vacuum release valve (24) is opened, the upper pressure-resistant lid (11) is opened, and the object to be cleaned (4) that has been dried can be removed from the pressure-resistant cylinder (1). It becomes possible. In addition, the steam generator 15) opens the third control valve (22) and introduces the steam into the decompression mechanism (14) equipped with a solvent recovery function, enabling the vacuum distillation regeneration of the cleaning liquid (5). To do.

Example 2

[0022] In the first embodiment, the reserve tank (20), the steam generation mechanism (15), etc. are connected to the pressure-resistant cylinder (1) via the pressure-resistant lid (11X12), and the ultrasonic wave of the object to be cleaned (4) is obtained. It is assumed that vacuum drying is performed together with liquid cleaning and vacuum steam cleaning, but only the pressure reducing mechanism (14) is connected to the lower pressure-resistant lid (12) as shown in Fig. 4, and liquid cleaning and Alternatively, the object to be cleaned (4) that has been subjected to the steam cleaning may only be dried under reduced pressure.

Example 3

[0023] In Examples 1 and 2, the pressure-resistant cylinder (1) is independently used as a vacuum steam cleaning tank and a vacuum drying tank, but the object to be cleaned (4 It is also possible to use the pressure-resistant cylinder (1) containing the) as a cleaning rod. In this case, the pressure-resistant cylinder (1) containing the object to be cleaned (4) is sequentially stored in the first and second liquid cleaning tanks (25X26) equipped with the ultrasonic vibrator (16) for liquid cleaning. After that, the pressure-resistant cylinder (1) as the cleaning bowl is stored in a heat drying tank (27) heated by hot air, infrared rays, etc., and primary drying is performed. After performing the primary drying by this heat, the pressure-resistant cylinder (1) is vacuum-dried in a vacuum drying tank having the same configuration as in the second embodiment in which the top and bottom of the pressure-resistant cylinder (1) are sealed with a pressure-resistant lid (11X12). Is. In the third embodiment, the lid (12) for sealing the lower end of the pressure-resistant cylinder (1) uses the top surface of the mounting table (13).

Example 4

[0024] Further, in each of the above-described embodiments, the placing portion (6) of the object to be cleaned (4) is formed on the pressure-resistant cylinder (1), and the object to be cleaned (4) is formed on the placing portion (6). ) Is used and the pressure-resistant cylinder (1) is used as a cleaning rod. However, in Example 4, the mounting portion (6) is not formed on the pressure-resistant cylinder (1). As described above, the pressure-resistant cylinder (1) cannot be used as a cleaning bowl by not forming the mounting portion (6), but the opening (3) at the lower end as shown in FIG. An insertion base (28) formed separately from the pressure-resistant cylinder (1) is inserted into the pressure-resistant cylinder (1) sealed with the body (12), and a conventionally known storage is placed in the insertion base (28). The object to be cleaned (4) stored in the bag (30) can be placed, and the object to be cleaned (4) can be subjected to vacuum steam cleaning or vacuum drying. After completion of the work to be cleaned (4) placed on this insertion table (28) As shown in Fig. 6, the object to be cleaned (4) can be removed by raising the pressure-resistant cylinder (1), and the belt conveyor (29) etc. can be removed by moving the insertion base (28). This makes it easy to transfer the object to be cleaned (4) to the next process. The object to be cleaned (4) can be transferred to the belt conveyor (29) after the pressure-resistant cylinder (1) has been raised, or the belt conveyor (1) can be moved to the belt conveyor (29). The pressure-resistant cylinder (1) may be raised after the article to be cleaned (4) is transferred.

Example 5

[0025] Further, in Example 4 described above, the object to be cleaned (4) was placed on the insertion base (28). However, if the object to be cleaned (4) is relatively large, it is not always necessary. It is not necessary to place it on the insertion base (28), but it may be placed directly on the pressure-resistant lid (12) below as shown in FIG. In this case as well, the object to be cleaned (4) may be transferred to the belt conveyor (29) after the pressure-resistant cylinder (1) is raised, or the belt conveyor together with the pressure-resistant cylinder (1). The pressure-resistant cylinder (1) may be raised after the object (4) is transferred to the item (29).

Example 6

[0026] Further, in Example 4 described above, an object to be cleaned (4) stored in a conventionally known storage basket (30) is placed on the insertion base (28). The object to be cleaned (4) is placed directly on the body (12), but the object to be cleaned (4) stored in the conventionally known storage basket (30) can be removed without going through the insertion base (28). It may be placed on the lower pressure-resistant lid (12).

Claims

The scope of the claims

[1] Open both ends at the top and bottom, cover the opening with a pressure-resistant lid so that it can be opened, and do not connect the steam supply piping or decompression piping! A method for cleaning an object to be cleaned, characterized by performing reduced pressure immersion cleaning, vacuum steam cleaning or vacuum drying of the cleaning object.

[2] Do not connect the steam supply piping and decompression piping with the upper and lower ends as openings! The pressure-resistant cylinder and a pressure-resistant lid that can seal the openings at the upper and lower ends of the pressure-resistant cylinder. The pressure-resistant cylinder is sealed with the pressure-resistant lid, and the object to be cleaned is stored in the vacuum under reduced pressure. An apparatus for cleaning an object to be cleaned, characterized by having a pressure resistance that can withstand the reduced pressure when performing vacuum steam cleaning or vacuum drying.

[3] The method for cleaning an object to be cleaned according to claim 1, wherein the pressure-resistant lid is formed by connecting a pressure reducing mechanism and / or a steam generating mechanism.

[4] The apparatus for cleaning an object to be cleaned according to claim 2, wherein the pressure-resistant lid is formed by connecting a pressure reducing mechanism and / or a steam generating mechanism.

[5] The method for cleaning an object to be cleaned according to claim 1 or 3, wherein the pressure-resistant cylinder is provided with a mounting portion on which an object to be cleaned can be mounted and a cleaning liquid can flow.

[6] The apparatus for cleaning an object to be cleaned according to claim 2 or 4, wherein the pressure-resistant cylinder is provided with a mounting portion on which an object to be cleaned can be mounted and a cleaning liquid can flow.