JPS6154272A - Washer - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Application of the Invention] The present invention relates to a cleaning device, and particularly to a cleaning device suitable for preventing loss of cleaning solvent due to mist.

[Background of the invention]

In a conventional spray-type cleaning device, as shown in Figure 2, the mist (fine mist-like particles of cleaning solvent) 14 generated by spraying in the cleaning tank on the left side of the drawing mixes with air. However, the cleaning solvent flows out of the apparatus through the inlet 12 through which the objects to be cleaned are brought in, resulting in loss of expensive cleaning solvents. Such a mist is generated when organic solvents such as chlorocene are sprayed under high pressure.

This mist is determined by the saturated vapor pressure at a specific temperature.
It is in a state of supersaturation, meaning that it is mixed in the air at a ratio of more than 50%.

As a means of collecting such mist, as shown in Fig. 2, there is a method of flowing cold water through a condensing coil 7 installed in the collection tank 2 to condense and collect it. Since the gas is mixed in, this air prevents direct contact between the mist and the condensing coil, resulting in a significant reduction in condensing efficiency.

In addition, there is a method of installing a door at the loading/unloading exit to prevent mist from flowing out, but this method requires a lot of time and effort as the door must be opened and closed when loading and unloading the items to be cleaned. Easy to clean. Also, mist inevitably flows out when the door is opened and closed. There were drawbacks as mentioned above.

Note that related devices of this type include, for example,
Jikko No. 58-15496 is mentioned.

[Purpose of the invention]

An object of the present invention is to provide a cleaning device that prevents mist from flowing out to the outside and prevents loss of cleaning solvent due to the mist.

[Summary of the invention]

In the present invention, since the air and the fine particles of the solvent are mixed together, it is difficult to collect the mist using the condensing means! By interposing vapor of the same solvent between the mist and the condensing means, which can be easily recovered by the condensing means, the mist is prevented from flowing out of the device, and the loss of expensive cleaning solvent is prevented. The 49 signs are:

That is, the present invention is characterized by a cleaning device that is provided with means for heating a solvent to generate vapor of the solvent, and that directs the vapor so as to contact the condensing means and prevent the mist from coming into contact with the condensing means. shall be.

[Embodiments of the invention]

An embodiment of the present invention will be described below with reference to the drawings. 1st
In the spray cleaning device shown in the figure, the mist generated by the spray 8 in the cleaning tank 4.5 mixes with air, passes through the cypress passageway, and is transported to the outside of the device through the inlet 12 and outlet 13 for the fc cleaning material 6. I'm thinking of leaking to. .

FIG. 3 is an enlarged view of the area within the dotted line frame including the delivery entrance, and the mist 14 generated from the cleaning tanks 4 and 5 condenses in the storage tank,
As the mist collides with itself under the tube, some of the mist is collected, while the rest tries to flow out from the entrance 12.

On the other hand, a heater 1° (
(The heated cleaning solvent 9 is injected into the recovery tank 2 from the steam outlet 16 as saturated steam 15, which is not legal. This steam outlet 16 is the mist outlet of the cleaning device. 17, there is a saturated vapor layer 18 that does not contain air between the mist 14 and the condensing coil 7.
intervenes. Therefore, before the misses 4 flow out into the air, they are trapped in the dense saturated vapor layer 18 (heated and become saturated vapor), and can be prevented from flowing out of the apparatus.

The saturated vapor layer 18, which does not contain air, is liquefied and recovered by the condenser of the condenser. Similarly, with respect to the outlet section, as shown in Fig. M1, by providing a steam tank 1, it is possible to collect the mist 14 that is about to flow out from the outlet port 13.

〔Effect of the invention〕

According to the present invention, it is possible to recover the mist, which has been considered difficult in conventional methods, thereby preventing the mist from flowing out and eliminating the loss of cleaning solvent.

[Brief explanation of drawings]

FIG. 1 is a vertical cross-sectional view of a spray cleaning device showing an embodiment of the present invention, FIG. 2 is a vertical cross-sectional view of the entrance portion of a conventional example of the device, and FIG. 3 is a vertical cross-sectional view of the portion inside the dotted line frame in FIG. Enlarged view. ]...Steam layer' 2...ro! l Accommodation 3・
...Preliminary tank 4...Cleaning tank (first tank) 5...
・Washing tank (WJ2 tank) 6...Object to be cleaned 7...Condensing coil 8...Spray 9...Solvent 10...Heater 11...Transportation jig 12...
・Carry-in port 13...Carry-out port 14...Mist 1
5... Saturated steam 16... Steam layer outlet

Claims (1)

[Claims] A cleaning device that performs cleaning by spraying a cleaning solvent onto an object to be cleaned from a sprayer, the cleaning device being provided with a mist condensing means for preventing the solvent mist from flowing out from an inlet of the object to be cleaned. The cleaning apparatus includes means for heating the solvent to generate vapor of the solvent, the vapor contacting the condensing means, and discharging the vapor so as to prevent the mist from contacting the condensing means. A cleaning device characterized by guiding.