JPH10216653A - Spray-cleaning method and device therefor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain an excellent cleaning effect in a short time with a small amt. of water. SOLUTION: An electrostatic field-treated water 7 is sprayed on the surface of an object 2 to be cleaned, and the object is cleaned. For the purpose, the device is composed of a cleaning tank 1 contg. a passage 3 for the object 2, a spray nozzle 4 attached to the tank 1 along the passage 3 and opposed to the side face of the passage 3, the water tank 6 and pump 5 for supplying the electrostatic field-treated water 7 to the nozzle 4 and an air compressor 9 (spray means) for spraying the water 7 supplied to the nozzle 4 from the nozzle 4.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a spray cleaning method and apparatus using water, which is useful for, for example, cleaning a wiring board or removing a chemical after plating.

[0002]

2. Description of the Related Art As a cleaning method using water, a method of supplying a large amount of running water to a surface of an object to be cleaned, a method of passing an object to be cleaned through pure water or the like, a method of adding bubbling to those methods, A method of supplying water to the surface of the object to be cleaned in a shower state or a spray state is known.

[0003] Among the above-mentioned cleaning methods, in particular, a method of supplying water in a spray state can reduce the amount of water used, but requires a relatively long cleaning time and cannot provide a sufficient cleaning effect. Is a problem.

[0004]

SUMMARY OF THE INVENTION An object of the present invention is to provide a spray cleaning method and apparatus capable of obtaining an excellent cleaning effect in a short time with a small amount of water.

[0005]

A spray cleaning method according to the present invention is characterized by spraying electrostatic field treated water onto the surface of an object to be cleaned. For example, a cleaning tank provided with a passage for guiding an object to be cleaned therein, a spray nozzle arranged in the cleaning tank along the passage so as to face a side surface of the passage, and electrostatic field treated water is supplied to the spray nozzle. It comprises water supply means and spray means for spraying the electrostatic field treated water supplied to the spray nozzle from the spray nozzle.

According to the above construction, the electrostatic field treated water is supplied to the spray nozzle by the water supply means and sprayed from the spray nozzle by the spray means, and the object to be cleaned guided to the passage inside the cleaning tank is sprayed by the spray nozzle. The surface is sprayed with the spray of the electrostatic field treated water from the surface, and the spray of the electrostatic field treated water is excellent in the cleaning effect as compared with the case of the normal water spray not subjected to the electrostatic field treatment. Has been found to be.

The passage may be oriented, for example, in a horizontal direction, a vertical direction, or an oblique direction in between. The water supply means can be composed of, for example, a water supply tank storing the electrostatic field treated water, and a pump for transferring the electrostatic field treated water therein to the spray nozzle. Further, as the spraying means, for example, an air compressor for sending air to a spray nozzle can be used.

In the above configuration, the spray nozzles may be arranged on both sides of the passage. Further, the object to be cleaned may be moved in the cleaning tank in one direction in the passage, and the object to be cleaned may be moved in the reciprocating direction in the passage.

For example, as shown in FIG. 2, which is a conceptual diagram of a device for generating electrostatic field treated water, the electrostatic field treated water is purified through a high-pressure insulator 11 into a container 12 placed under ground insulation. And the like, and a high voltage such as 6000 to 12000 volts is applied by an electrostatic voltage generator 15 between the electrode 14 and the point at infinity, for example, for about 4 hours. In addition, it is obtained by applying an electrostatic voltage to the water 13 to be treated. From the ¹⁷ O-NMR (nuclear magnetic resonance) spectrum and other measurements, the modified water treated by the electrostatic field has a higher natural frequency and higher solubility than ordinary water such as tap water, etc. It is already known to have the unique physical properties of, for example, it has been scientifically reported that this has the effect of promoting an enzymatic reaction.

In the present invention, when the electrostatic field-treated water is supplied in a spray state on the surface of the object to be cleaned, the cleaning effect is increased as compared with the case of spraying with ordinary water.
Although the chemical mechanism is not always clear at present, when the electrostatically treated water returns from the active electrostatic field treatment state with a high natural frequency to the stable normal water state with a low natural frequency during cleaning, the surface to be cleaned is It is presumed that it exerts some exfoliating action or decomposing action on contaminants, and promotes the cleaning effect in combination with its excellent solubility.

[0011]

FIG. 1 is a schematic side view of a spray cleaning apparatus according to an embodiment of the present invention. In FIG.
At the center, a passage 3 for guiding the article 2 to be cleaned is provided, and a plurality of spray nozzles 4 are arranged at each stage in the horizontal direction so as to face the side surface of the passage 3 in two upper and lower stages along both sides of the passage 3. In the passage 3, the object 2 to be cleaned is moved horizontally (perpendicularly to the paper surface) at a required speed in one direction or in a reciprocating direction.

To each of the spray nozzles 4, electrostatic field treated water 7 is transferred from a water supply tank 6 by a pump 5 via a water supply pipe 8, and air is supplied from an air compressor 9 via an air pipe 10, whereby Electrostatic field treated water 7 is supplied from the spray nozzle 4 so as to spread in a conical shape in a spray state on the surface of the object 2 to be cleaned, and required cleaning is performed over details including irregularities and holes on the surface of the object 2 to be cleaned. .

In the above-mentioned embodiment, for example, the arrangement inside the cleaning tank 1 is rotated by an angle of 90 degrees around an axis parallel to each spray nozzle 4, and
The design can be changed so that can be moved vertically in one direction or in a reciprocating direction.

[0014]

Since the spray cleaning method and apparatus according to the present invention are configured as described above, an excellent cleaning effect can be obtained in a short time with a small amount of water by spraying the water treated with the electrostatic field.

In the apparatus having the above-described structure, in the case where the spray nozzles are arranged on both sides of the passage, both surfaces of the object to be washed arranged in the passage can be washed at the same time. Also,
When the object to be cleaned is moved in one direction in the passage in the cleaning tank, the surface of the object to be cleaned can be continuously cleaned over its entire length. Further, when the object to be cleaned is moved in the reciprocating direction in the passage in the cleaning tank, the surface of the object to be cleaned can be subjected to spraying of the electrostatic field treated water a plurality of times.

[Brief description of the drawings]

FIG. 1 is a schematic side view of a spray cleaning apparatus according to an embodiment of the present invention.

FIG. 2 is a conceptual diagram of an apparatus for generating electrostatically treated water.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Cleaning tank 2 Object to be washed 3 Passage 4 Spray nozzle 5 Pump 6 Water supply tank 7 Electrostatic field treated water 9 Air compressor

 ──────────────────────────────────────────────────続 き Continuing from the front page (71) Applicant 597025426 Masamitsu Izawa 22-25, Yoyo, Momoyama-cho, Fushimi-ku, Kyoto, Kyoto, Japan (72) Inventor Norio Adachi, 14-8, Yawata-Nagamachi, Yawata, Kyoto, Japan (72) Inventor Hiroshi Noguchi No. 60, No. 26, Terushida, Hijiri, Joyo-shi, Kyoto, Japan Inventor Shuji Matsumoto 613-2 Takahashi-cho, Higashi-toin-dori Buddha Temple, Shimogyo-ku, Kyoto-shi, Kyoto (72) Inventor Masamitsu Izawa, Fushimi-ku, Kyoto-shi, Kyoto 25 at 22 Yoyo, Momoyama-cho

Claims (5)

[Claims] 1. A spray cleaning method comprising spraying electrostatic field treated water onto the surface of an object to be cleaned. 2. A cleaning tank provided with a passage for guiding an object to be cleaned, a spray nozzle arranged in the cleaning tank along the passage along the side of the passage, and an electrostatic field treated water in the spray nozzle. And a spraying device for spraying the electrostatic field treated water supplied to the spray nozzle from the spray nozzle. 3. The spray cleaning device according to claim 1, wherein the spray nozzles are arranged on both sides of the passage. 4. The spray cleaning apparatus according to claim 1, wherein an object to be cleaned is moved in one direction in the passage in the cleaning tank. 5. The spray cleaning apparatus according to claim 1, wherein an object to be cleaned is moved in a reciprocating direction in the passage in the cleaning tank.