JPH035803Y2 - - Google Patents

Description

[Detailed description of the invention] (Technical field and purpose of the invention) The present invention relates to a vertical airflow type air purifying device, and its purpose is to provide an air purifying device that does not allow dust to accumulate in the corners of a clean room. shall be.

(Prior art) An example of a conventional vertical airflow type air purifier is shown in the third example.
As shown in the figure, the device 19 has a clean chamber 2 through which air purified by a filter 7 is passed as a vertical air stream, and various operations (semiconductor, biotechnology, etc. etc.).

However, in such a device 19, the clean room 2
In some cases, a vortex a was generated at the corner of the clean room 2, causing dust to be carried by the air current and not discharged, resulting in partial contamination of the clean room 2.

(Embodiment of the invention) The air cleaning device of the invention solves the above-mentioned conventional problems, and the air cleaning device of the invention (hereinafter referred to as the device of the invention) will be described below according to an embodiment shown in the drawings.

FIG. 1 shows a device according to the invention, which device 1 has a fan 5 whose intake port communicates with the atmosphere.

In the illustrated embodiment, a prefilter 4 is additionally installed between the air intake port of the fan 5 and the atmosphere.

Next, the exhaust port of the fan 5 is connected to a main ventilation port 10 provided at the top of the clean room 2 via an air path 6 and a filter 7 (which performs the main filtration action and is made of nonwoven fabric or the like).

The filter 7 is capable of removing fine dust particles (higher performance) than the pre-filter 4, and can be called a main filter.

On the other hand, the outlet of the filter 7 is connected via a bypass air passage 11 to an auxiliary air outlet 13 provided at a corner of the clean room 2 .

In the illustrated embodiment, the auxiliary air outlet 13 is provided in the front wall at the corner.

The method of use and operation of the device of the present invention shown in the above embodiments are as follows.

That is, the user opens the shutter 9 and drives the fan 5.

Thereby, the fan 5 sucks air from the atmosphere, passes through the air passage 6 and the filter 7, and sends it into the clean room 2 from the main air outlet 10.

That is, the air purified by the filter 7 is blown out from the main air outlet 10 and flows in the clean room 2 as a vertical airflow.

On the other hand, the air purified by the filter 7 is also guided to the auxiliary air outlet 13 through the bypass air passage 11 and sent into the clean room 2 from there.

Since the auxiliary air outlet 13 is provided at the corner, the air blown out from the auxiliary air outlet 13 flows from the corner along the workbench 3.

As a result, the dust is discharged to the atmosphere without remaining in the corners of the clean room 2.

FIG. 2 shows another device of the invention, which has the following features compared to that of FIG.

That is, a filter 7 and a separate filter 8 are provided connected to the air passage 6.

The outlet of the filter 8 is connected via a bypass air passage 11 to an auxiliary air outlet 13 provided at a corner of the clean room 2 .

As a result of the above, in the apparatus shown in FIG. 2, air purified by the filter 8 is blown out from the auxiliary air outlet 13 into the clean room 2 and flows along the workbench 3.

(Effects of the invention) The embodiments of the air cleaning device of the invention are as described above, and the effects thereof are listed below.

(1) The device of the present invention has the configuration described in the claims for utility model registration, and in particular, since purified air is guided to the auxiliary ventilation opening in the corner of the clean room, the flow from the auxiliary ventilation opening is As a result, dust will not accumulate in the corners of the clean room.

(2) The device of the present invention has the same configuration as above, and in particular, in a clean room, purified air is blown out from the main ventilation port and the auxiliary ventilation port, so a positive pressure is always maintained. As a result, there is no need to worry about dust flowing into the clean room from the atmosphere.

[Brief explanation of the drawing]

Fig. 1 is a conceptual diagram of the device of the present invention, Fig. 2 is a conceptual diagram of another device similar to the above, and Fig. 3 is a conceptual diagram showing an example of a conventional device. 1... device, 2... clean room, 3... ...Workbench, 4
...Prefilter, 5...Fan, 6...Air path, 7...Filter, 8...Filter, 9...
...shutter, 10...main air outlet, 11...bypass air path, 13...auxiliary air outlet, 19...device, a...vortex.

Claims (1)

[Scope of utility model registration request] A clean room in which the air purified by the filter is blown out from the main air outlet at the top and flows as a vertical air stream, an auxiliary air outlet provided at the corner of the clean room, and the auxiliary air outlet provided with the above or separate air outlet. An air purifying device consisting of a bypass air passage that guides air purified by a filter.