JPS59147615A - Filter device - Google Patents

Abstract

PURPOSE:To improve the efficiency for removing gas by arranging gas-permeable bag filters contg. gas-removing substance on other gas-permeable bag filters, providing on one hand a part contg. no gas-removing substance to a part of the space to utilize the part for clamping a mold in a molding work. CONSTITUTION:A gas-removing substance 11 such as activated coal is contained in gas-permeable bag filters 13, 14 which are held by another gas-permeable bag filter 15 held by a frame 12. The filters are so arranged that the closed parts of the gas-permeable bag filters 13, 14 may not be located at the clamping part 19, 20 of the mold in order that the gas-removing substance (adsorbent) 11 may not be distributed to the inside clamping part 19, 20 among the peripheral parts 19, 20, 21, 22 of the frame 12 of the mold 17, 18 during a molding work using the frame 12. The gas-permeable bag filters 13, 14 are made of cloth woven with twisted yarn, nonwoven fabric, or raised cloth. Since such parts contg. gas- removing substance are not formed because there is scarcely any movement of the gas-removing substance 11 in the gas-permeable bag filters 13, 14, reduction of the gas removing efficiency is prevented.

Description

DETAILED DESCRIPTION OF THE INVENTION FIELD OF INDUSTRIAL APPLICATION The present invention relates to a filter device for air conditioning systems, which can be used in air purifiers, ventilation turrets, etc.

Conventional structure and problems In conventional air purifiers, dust is removed using a mechanical filter or a hef dielectric filter, or activated carbon or chemical dust removal is used to remove dust. An example of this will be explained with reference to FIG.

A scum removing substance 1 is placed between the breathable nets 3 and 4, and the shape is maintained by a frame 2. When the filter is configured in this way, the scum removed material ffl 1 becomes air permeable
3, to move downward in 4, the breathable filter 3
The wind speed distribution passing through , 4 is very uneven, and the passing wind speed is partially skewed. Therefore, there was a problem in that the removal efficiency of the scum passing through this rrl (minute) was significantly reduced.

When molding the wasted frame 2, it is necessary to press the periphery of the frame 2 with a mold, so the waste removal substance 1 is placed inside the frame 2 without applying tension using the breathable net 3. Even if the mold were to be removed after molding, there were problems with the ventilation nets 3 and 4, the warmth, and the fact that the waste removal material 1 easily moved downward.

Sometimes, when the material is composed of single fibers such as air-permeable fibers, the surface is slippery and promotes the movement of the scum removal substance 1.

OBJECTS OF THE INVENTION The present invention aims to solve all of these conventional problems and provide a filter device with high gas removal efficiency.

+TL structure of the invention The filter of the present invention is such that a gas-removing bag-like filter containing a built-in gas-removing substance is placed on another air-permeable filter in advance, and a part of the air-permeable filter is provided with no gas-removing substance and fixed. The entire mold pressing part and molding part during molding are formed in the part where the gas removing substance is not provided, and the closed group or frame of the air-permeable bag-like filter containing the waste removing substance is formed. , When molding a support etc., the entire mold presser jτlS becomes J111, so when the mold is removed, there is no loosening for 1lli of bags, and the movement of the gas removal substance is extremely reduced, which increases the gas removal efficiency. .

A bag-shaped filter is used for the escape air, which contains a gas removal substance.
This is made by fixing it to another breathable filter in advance and then molding it. With this configuration, the local fluctuation rate of the air flow is reduced and the flow becomes more uniform, which improves gas removal efficiency. In addition, even if the filter has a complicated shape, it is now possible to divide it into parts to make bags, and it is now possible to create a filter by partially attaching it to another filter, which greatly improves work efficiency. go up to

DESCRIPTION OF EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. 2 and 3. 11 is a gas removal substance, 12 is a frame, 13. Bi'
X7714 is a breathable bag-like filter containing a varnish gas removing substance 11, which is held in one frame 12 and held in another breathable filter 15.

Circumference 19 of frame 12 of molds 17 and 18 during molding of face frame 12
, 20, 21, and 22, especially in the parts pressed by the inner pressing parts 19 and 20, the closed part of the air-permeable bag filter 13. It is configured so that it is not located in the sections 19 and 20. , 16 is filtered with a breathable filter. Contains 11 particles removing substances.

The air-permeable bag-like filters 13 and 14 are more effective if they are made of twisted yarn fabric, non-woven fabric, or raised fabric.

The effects of this configuration will be explained.

Breathable bag-like filter 13 containing gas removal substance 11
．． Because it is made of 14-strand nonwoven fabric, raised fabric, etc.
The surface has many irregularities, which prevents the gas removal material from falling in the negative direction.

- When molding the horizontal frame, all the presser parts 19 and 20 are removed and the air-permeable bag-like filter 13.14 containing the gas removing substance 11 is closed at the part 70, so the mold 17.18 is removed after molding.
Even after removing the breathable bag-like filter 13'+1
4 is the ridge and the content 7h11 cannot be large. Therefore, the gas removal substance 1'1 does not fall downward. Furthermore, an air permeable bag-like filter 13 containing a built-in scum removing substance 11.
By protruding another air-permeable filter 15, 16 on the side surface of the filter 14, it is possible to reduce the difference in air flow rate due to the difference in the thickness of the waste removal material 11. Since the difference in passing pressure loss decreases relatively, the difference in flow rate 1 also decreases, and the overall waste removal efficiency increases.

Further, air-permeable bag-like filters 13 and 14 containing a waste removing substance 11 are placed in the same manner as the frame 12.
If the frame 12 is held by another breathable filter 15 or 16 on the 11th side, there is no need to insert the gas removing material 11 along it when the shape of the frame 12 becomes complicated. If a breathable bag-like filter with a built-in filter 11 is available, it can be manufactured very easily. Wasted mold 17.18
The effect will be even greater if the holding parts 19 and 20 are constructed so that the resin penetrates from the frame 12 or the air permeability is closed with tape or the like in advance.

Effects of the Invention As is clear from the above embodiments, the filter device of the present invention removes waste by placing a gas-removing filter containing a gas-removing substance on top of another gas-removing filter in advance, avoiding the molded part. The bag portion of the air-permeable filter containing the substance is not pressed down by the mold during molding, and the bag-like air-permeable filter does not loosen after being removed from the mold. Therefore, there is no downward drop of the gas removed substance, and there is no unbalanced air flow. Scum removal substance 1
By forming a frame after forming a breathable bag-like filter with a built-in air filter 1 into another air-permeable filter (IC13j), a breathable bag-like filter with a built-in dust removal substance can be created even in a multi-shaped filter. After creating the shape in advance, it can be attached to the separate filter mentioned above, which improves workability.Furthermore, the proportion of local fluctuations in air flow resistance is reduced, the air flow is made uniform, and the gas The removal efficiency is improved.

[Brief explanation of drawings]

Figure 1 is a perspective view of a conventional filter, Figure 2 is a perspective view of a conventional filter.
−/j<J of a filter device showing an embodiment of the invention:
Figures 1 and 2' and 33 are cross-sectional views of the mold during molding of the same frame. 11-... Dregs removal substance, 13.14-... Ventilation bag-like filter, 15.16... Ventilation/Ml-filter, 19.2 ()-... Mold presser. Name of representative J41i Patent attorney Toshio Nakao and 1 other person
Figure 1

Claims (1)

[Claims] A breathable bag-like filter containing a scum removing substance is placed in another air permeable filter, and a hole B'115 where the scum removing substance is disposed is provided in a part and fixed. A filter device in which a molded part of the entire press during molding is formed in the part where the gas removing substance is not placed.