JPS6016255A - Packing sealing material for filter - Google Patents

Abstract

PURPOSE:To enable to easily pack a sealing material at a fitting site, by a method wherein a sealing material obtained by mixing a foaming agent into a sticky resin material is packed into a recessed groove, and is then foamed so that it is expanded to the outside of the groove. CONSTITUTION:In a filter device 1, a filter 3 which comprises a filter medium 3b formed from a glass, a ceramic, a cellulose asbestos paper or the like in the shape of an accordion curtain or the like sealed in a tetragonal frame form wooden filter frame 3a is suspended from a frame body 2 by suspenders 4. The top surface of the filter 3 is spaced from the lower surface of the frame body 2 by a predetermined distance, and a sealing material 5 consisting of a sticky resin material is intermediately provided between the filter frame 3a and the frame body 2 to prevent air from leaking through the gap between the filter 3 and the frame body 2. To form the sealing material 5 into the shape protruding to the outside of the recessed groove 6, it is necessary to use as the sealing material 5 a material comprising, for example, silica gel or a sticky resin material such as a cold-setting two-pack type polyurethane resin material as a main constituent in which a foaming agent such as gas-filled plastic balls is mixed.

Description

DETAILED DESCRIPTION OF THE INVENTION Technical Field The present invention relates to a method for loading filter sealing material in which the filter sealing material used for attaching a filter is stacked in 1M pieces.

BACKGROUND TECHNOLOGY In general, in cleaning rooms where clean air is required, such as parts factories for precision machinery and electronic equipment, research laboratories, and even hospitals, filters are installed on the ceiling, and filters are installed from the ceiling to the floor. A vertical laminar air supply system that supplies clean air at a uniform velocity toward the opposite wall, or a filter is attached to a wall and supplies clean air at a uniform velocity from this wall to the opposite wall. Air is often supplied using a horizontal laminar flow type air supply system.

By the way, in the conventional vertical laminar flow type or horizontal laminar flow type air supply system, a rubber gasket is inserted between the filter and the frame body that fits the filter shape for holding P material to prevent air leakage. However, after long-term use, the rubber gasket deteriorated, resulting in incomplete sealing and other drawbacks.

Therefore, a method has been considered in which a sealant-filled portion is formed in the filter frame, and silicone gel or an adhesive resin having properties equivalent thereto is loaded into the sealant-filled portion.

Therefore, when using an adhesive resin material such as silicone gel as the sealing material, instead of forming protrusions on the frame side, the sealing material is made to protrude outward from the sealing material filled part, and this protruding portion may be brought into close contact with the frame.

In that case, it is desirable to form the sealing material into a predetermined stacking shape when filling the filter frame with the sealing material, but in order to prevent the sealing material from being damaged during transportation of the filter, The reality is that when installing a filter, it is necessary to fill it with sealant on-site. In addition, in this case, in addition to a sealing material filling machine, a mold for molding the sealing material is also required, and considering the constraints of filling within a cleaning room, it is difficult to perform the work quickly and carefully. There were drawbacks.

DISCLOSURE OF THE INVENTION The present invention eliminates the above-mentioned drawbacks. A sealing material made of adhesive resin mixed with a foaming agent is filled in the inner part of the sealing material filling part from the opening surface, and the filter is transported. It is an object of the present invention to provide convenience in this manner, and to easily obtain a desired stacking state by foaming a foaming agent and swelling-molding a sealing material when attaching a filter.

In order to achieve this object, the present invention has a filter frame for retaining the p-material that matches the cross-section of the flow path of the fluid to be permeated, in a cool shape and with a hook. Me, providing a sealing material filling part opening to the outside in the filter frame;
This is a sealing material made by mixing a foaming agent into a sticky resin material.The sealing material is filled deeper than the opening surface of the sealing material filling section, and then, when installing the filter, the foaming agent mixed in the sealing material is foamed. The gist of the present invention is to bulge the sealing material outward from the sealing material filling portion to achieve a predetermined loading state.

According to the present invention, a sticky resin material mixed with a foaming agent is used as the sealing material, and this sealing material is filled deeper than the opening surface of the sealing material filling part, so the filter filled with the sealing material is Since the sealing material is hardly exposed to the outside, there is little risk of damage to the sealing material even if the filter filled with sealing material is transported. Since the filter bulges out of the sealing material filling part, the filter can be easily installed on-site without the need for special equipment such as a sealing material filling machine or formwork. This provides excellent effects such as simplifying the work of installing the filter.

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a vertical diagram showing an embodiment of a filter device constructed by applying the filter sealing material loading method of the present invention.
Figures 2(A) to 2(C) are vertical cross-sectional views of essential parts for explaining the loading method of the filter sealing material. The filter 3V is of a hanging type, and the ventilation passage-2a of the frame λ arranged in a grid pattern on the ceiling of the air purification room is applied to the lower surface of the frame λ.
C to purify the air supplied into the air purification chamber. This filter device/ is constructed by sealing a P material 3b formed from glass, ceramic, cellulose asbestos paper, etc. into an accordion curtain shape in a square wooden filter frame 3a, and a filter 3 is attached to a hanger. The frame was also suspended using a The upper surface of the filter 3 is separated by a predetermined distance from the lower surface of the frame body 2, but in the case of this embodiment, a sealing material made of an adhesive resin material is used between the filter frame 3a and the frame body 2. The filter 3 is interposed between the filter 3 and the frame body to prevent leakage of air from the gap between the filter 3 and the frame body.

In the case of this embodiment, the sealing material j is loaded with a groove formed on the top surface of the filter frame 3a as a sealing material filling part, and the part that comes into contact with the frame λ is filled with the groove as shown in the figure. It is necessary to process it into a shape that protrudes outward. Therefore, the sealing material is mainly an adhesive resin material such as silicone gel or a two-component polyurethane resin material that hardens at room temperature, and a foaming agent such as a gas-filled glass ball is mixed therein. use something Silicone gel is made by three-dimensionally crosslinking silicone linear polymers, and the crosslinking density is not as high as that of silicone rubber, so the elasticity or restorability is not as high as that of silicone rubber. It exhibits jelly-like properties while exhibiting properties similar to , and has adhesive properties, so it can achieve complete adhesion to the object without creating any gaps.

Below, regarding the loading method of the sealing material for filter 3,
Fig. 2 (Chrysanthemum or C) will also be explained.

First of all, it is a sealant made of adhesive resin mixed with a foaming agent.
As shown in FIG. 2(A), the groove 6 of the filter frame 3a
Fill the container to the specified amount. At this time, use a foaming agent that is not already foamed, and use a sealing material! is necessarily smaller than the volume of the groove 6 by a predetermined amount, that is, the volume of the groove 6
It must be filled so that it is located further back than the opening surface 6a. As will be explained later, this sealant is produced only when the foaming agent is foamed! The volume of the sealing material exceeds the volume of the concave groove 6! This is to make a part of the groove protrude outside the concave groove 6. In this way, a predetermined amount of 7-ru material! The filter 3 filled with is a sealing material! is completely housed in the groove 6 of the filter frame 3a, so when the filter 3 is transported, the sealing material! The risk of damage to the equipment is extremely small.

Next, when attaching the filter 3 to the frame, use sealant! The sealing material j is heated in order to achieve a predetermined loading condition. Here, the sealant! The foaming agent contained inside uses gas-filled glass balls that foam when heated from the outside, so as soon as foaming begins, the sealing material! expands and its volume increases.

Sealing material associated with this foaming! The increase in volume is known from test data and the like, and therefore, by heating for a predetermined period of time, the shape of the sealing material j can be made into the shape shown in FIG. 2(B). Figure 2 (
As is clear from B), the top of the sealing material j bulges out of the groove 6 in a rounded state, and this bulging portion becomes the portion that comes into contact with the portion F of the frame λ.

In this case, the portion that bulges out of the groove can be molded into a cross-sectional shape that is almost the same as the groove 6 without using a special mold (not shown), and the part that bulges out of the groove can be It will not lose its adhesive strength. Therefore, tighten the hanger and remove the filter 3.
When the is fixed at a predetermined height position relative to the frame λ, the sealing material! As shown in FIG. 2 (0), the top part is in close contact with the lower surface of the frame body in a state of elastic deformation. That is,
The sealing material j comes into contact with the bottom surface of the frame 2 with no gaps at all, and even if there is some positional deviation with respect to the frame body, it maintains this gap-free state, so the sealing material! The seal is complete.

In this way, a sticky resin material mixed with a foaming agent is used as a sealing material, and after being filled into the groove 6, the foaming agent is foamed by heating, and the sealing material j is bulged out of the groove g. Since it is molded, it is a sealant! Filter 3 filled with
Once prepared, the filter 3 can be easily installed at the site by simply foaming a foaming agent to achieve the desired loading condition. This eliminates the troublesome sealant loading work at the site. This allows efficient loading work in a short time. In addition, the filter 3 filled with sealing material is a sealing material! The sealing material is not exposed to the outside while the filter 3 is being transported. There is little risk of damage.

In the above embodiment, the groove ≦ filled with the sealing material j is formed on the upper surface of the filter frame 3a. However, as in the filter 13 shown in FIG. A frame-like body /4a having a groove /A for filling the sealing material may be separately fixed to the upper part of Ja. In this case, the sealing material j is filled by filling the frame/Aa with the filter frame/
Because it can be done in an easy-to-handle state without being separated from Ja,
It is possible to reduce filling work to manual labor.

Further, as in the filter 2J shown in FIG. 3, a ladle-shaped sealing material filling portion 21 may be integrally formed at the edge portion of the filter frame 3.3a.

Furthermore, filter 3. /J, 23rd grade is the frame body.

For example, instead of hanging it up! The filter device 3/ shown in the figure may be placed on the frame λ. Also, the filter device 37, etc. may be installed not only on the ceiling surface of the cleaning room (but also on the wall surface). It is possible.

Furthermore, in each of the above examples, sealing material j containing a foaming agent that foams when heated is used, but the foaming agent may be one that foams by applying a physical external force such as radiation or electromagnetic waves in addition to heating. Alternatively, it is also possible to use one that causes foaming by utilizing a chemical reaction accompanying injection of a foaming promoting liquid or the like.

Further, as the filter frames ja, /3a, 2Ja for holding the door material, metal ones may be used instead of wooden ones.

[Brief explanation of drawings]

FIG. 1 is a vertical cross-sectional view showing one embodiment of a filter device configured by applying the filter sealing material loading method of the present invention, and FIGS. 2(A) to C) are respectively Longitudinal cross-sectional view of main parts to explain the method of loading sealing material,
Figures 3.4 and 4 are longitudinal cross-sectional views of essential parts showing modified examples of the filter device shown in Figure 1, respectively, and Figure 5 shows a filter device configured by applying the filter sealing material loading method of the present invention. It is a longitudinal cross-sectional view showing another example of a filter device. /, 31... Filter device, λ... Frame 1.2a.
...Jl airway, 3. /3. :) 3-...filter,
3 a, /,? a, ,2.7a =-filter frame,
3b, 23b...door material! ...Sealing material゛, Otsu, /
6...concave groove, 4a...opening, 2II...light with seal" 4 parts.

Claims (1)

[Claims] A filter that can be attached by aligning the filter frame for holding the F material with the flow path wall of the fluid to be filtered in a sealed state,
A sealing material filling section opening to the outside is provided in the filter frame, and a sealing material made of a sticky resin material mixed with a foaming agent is filled in the inner side of the opening surface of the sealing material filling section. When installing the filter, the foaming agent mixed in the sealing material is foamed, and the sealing material is expanded outward from the sealing material filling part to achieve a predetermined loading state. Method.