JPH0283076A - Washing device - Google Patents

Abstract

PURPOSE:To decrease the consumption of solvent by providing a pressure device which increases pressure in a storage tank to push up a cover and thereby allows solvent to drop from a washing tank into the storage tank. CONSTITUTION:A pressure pump 17 is provided as a pressure device on the side of a storage tank 12 to apply pressure to the interior of the storage tank 12. Then a cover 15 is pushed up to allow solvent 16 to drop from a washing tank into the storage tank below. Next, the solvent 16 is again sent out of the storage tank 12 into the washing tank 11 through a filter 19 using a transport pump 18. The solvent 16 contaminated by washing operation in the washing tank 11 is allowed to drop into the storage tank 12 all at once by applying pressure to the interior of the storage tank 12 and thereby pushing up the cover 15. Subsequently, dust which precipitates and sticks to the bottom of the washing tank 11 is washed away into the storage tank 12 by a violent flow when the solvent 16 drops. The solvent 16 in the storage tank 12 is purified by the transport pump 18 through the filter 19 and again is sent back to the washing tank 11. Thus the solvent is maintained in a purified condition.

Description

Detailed Description of the Invention (Technical Field of the Invention) The present invention relates to a cleaning device that performs cleaning using a solvent.
Particularly regarding cleaning of solvent stains.

(Technical Background of the Invention and Problems thereof) Conventionally, cleaning devices that use, for example, Freon as a solvent have been frequently used. This type of Freon cleaning equipment provides good cleaning performance without damaging the materials, and uses various methods such as boiling cleaning, ultrasonic cleaning, and steam cleaning to insulate precision equipment and parts such as electronic equipment. It can be washed without damaging its properties.

By the way, this kind of wash'/! In the II device, as the cleaning operation continues, the fluorocarbon solution stored in the cleaning tank becomes gradually contaminated and minute particles and the like become suspended.

For this purpose, for example, as shown in Fig. 2, a pipe is attached to the top of the cleaning tank 1 to send the overflowing solvent to the storage tank 2.
There is a system in which the purified solvent is sent from the bottom of the liquid storage tank 2 to the cleaning tank 1 again via a pump 3 and a filter 4, and the solvent is circulated and purified.

However, even if the solvent is circulated in this way, the cleaning tank 1
There is a problem in that the solvent cannot be sufficiently purified because it is not possible to remove dust, etc. that has settled and adhered to the bottom of the tank or floated in the solvent.

(Object of the Invention) The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a cleaning device that can significantly reduce the amount of solvent consumed.

(Summary of the Invention) The present invention provides a partition wall between an upper cleaning tank and a lower storage tank, and a lid is disposed in a through hole provided in the partition wall so that the solvent stored in the cleaning tank can be removed. A pressurizing means is provided which closes the through hole with a pressure of The present invention is characterized in that the water is sent to the cleaning tank again through a filter.

(Example) Hereinafter, an example of the present invention will be described in detail, taking as an example an apparatus using chlorofluorocarbons as a solvent, with reference to a front view showing an overview of the entire apparatus in FIG.

The container 10 is divided into two chambers by providing a partition wall 13 between an upper cleaning tank 11 and a lower storage tank 12.

A through hole 14 is bored in this partition wall 13, and a lid 15 is disposed therein. This lid body 15 is disposed on the side of the cleaning tank 11 and has a larger external shape than the through hole 14, and the pressure of the solvent 16 stored in the cleaning tank 11 is applied to the through hole.
I am trying to close 4.

Then, a pressurizing means, for example, a pressurizing pump 17 is provided on the side of the storage tank 12, and by pressurizing the inside of the storage tank 12, the lid 15 is pushed up and the solvent 16 in the cleaning tank is immediately transferred to the lower storage tank. I'm trying to make it fall.

The solvent 1G in the storage tank 12 is then sent to the cleaning tank 11 again via a filter 19 by a transfer pump 18.

With such a configuration, the solvent 16 contaminated by the cleaning work in the cleaning tank 11 is removed at once by pressing up the lid 15 by pressurizing the inside of the storage tank 12.
Fall inwards. Therefore, the dirt 20 and the like that have settled to the bottom of the cleaning tank 11 by one inch are washed away into the storage tank 12 by the strong flow when the solvent 16 falls.

Then, the solvent 16 in the storage tank 12 is cleaned by a transfer pump 18 via a filter 19, and sent to the cleaning tank 11 again. Therefore, the cleaning tank 11 is always filled with clean solvent 16.
Is it possible to prepare an item for the first contest)? can be contested.

Note that the present invention is not limited to the above embodiments,
For example, the outlet side of the filter 19 is piped into two routes, one of which goes directly to the cleaning tank 11 and the other of which has a water sprinkling structure.
It may also be possible to wash away dirt adhering to the inner wall of the container. In this way, after the solvent 16 is dropped into the storage tank 12, the solvent 16 is sprayed into the cleaning tank 11 to wash away the dirt. The fI tank 11 can be kept cleaner.

Furthermore, although the above embodiments have been described using chlorofluorocarbons as the solvent, it goes without saying that chlorine-based tonochloroethane, other organic solvents such as benzene, methanol, etc. can be used as appropriate.

(Effects of the Invention) As described in detail above, according to the present invention, the solvent in the cleaning tank can be kept in a clean state, thereby making it possible to cleanly remove the most important materials. A dispute device can be provided.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing an overview of an embodiment of the present invention, and FIG. 2 is a block diagram showing an example of a conventional cleaning device. 10... ・Container 1 l ・ ・ Wash? War 4th officer 12...
・Storage tank 13 ・・Partition wall 14 ・・Through hole 15 ・・Lid 16 ・・・Solvent 17 ・・Pressure means 18 ・・・Transfer pump 19 ・・・Filter 20 ・・・Garbage

Claims (1)

[Scope of Claims] A container in which a partition wall defines a space between an upper cleaning tank and a lower storage tank, and a through hole provided in the partition wall of the container, and the pressure of the stored solvent is applied to the through hole. a lid for closing the storage tank; a pressurizing means for pressurizing the inside of the storage tank to push up the lid and cause the solvent in the cleaning tank to drop all at once into the storage tank; A cleaning device characterized by comprising: a transfer means for sending to a cleaning tank;