KR102230248B1 - Bag filter for water purification - Google Patents

Abstract

The bag filter for water purification according to the disclosed invention includes: an inlet portion closed with an annular member at one end to maintain an annular shape; A body portion connected to the other end of the inlet portion and having a plurality of bent members formed by folding each portion along an outer surface to increase a surface area and maintain a shape; And a bottom portion for closing the other end of the body portion; including, sewing both ends of the inlet portion, the inlet portion and the neighboring end of the body portion, the neighboring end of the main body portion and the bottom portion, and both ends of the main body portion To connect.
According to the present invention, by folding each part along the outer surface of the main body and sewing both ends to form a large number of bent members, the filtering area is made three times wider than that of the existing product, increasing the processing capacity, increasing the use time, and passing through the filtering surface. The filtration efficiency can be maximized by reducing the flow rate, and the damage to the bag filter due to eddy currents can be minimized by making the upper area of the main body narrow, and strong water pressure inside by connecting the valleys of the bent members with a shape-retaining member. Even if it acts, there is an effect of maintaining the shape of the bent member.

Description

Bag filter for water purification {BAG FILTER FOR WATER PURIFICATION}

The present invention relates to a bag filter for water purification, and more particularly, to a bag filter used to filter impurities such as industrial water.

In general, if contaminated water generated in industrial sites is discharged as it is, serious environmental pollution is caused, so all companies are obligated to purify and discharge contaminated water.

Accordingly, companies install a bag filter as a purification means to purify water. Such a bag filter basically consists of a filter bag in the shape of a bag installed inside the housing in which the inlet and outlet are formed, so that contaminated water flows into the housing through the inlet and is filtered through the filter bag. Water is discharged out of the housing through the outlet.

A technique related to such a bag filter has been proposed in Korean Patent No. 1649048.

However, Patent Literature 1 has a problem in that a bag filter is formed in a cylindrical shape so that it is easily deformed by the pressure of incoming water, a filtration area is limited, and a plurality of bag filters must be provided to solve this problem.

Korean Patent Registration No. 1649048 (2016.08.10)

The present invention was conceived in consideration of the above points, and the problem of the present invention is to provide a bag filter for water purification capable of improving the filtering area by folding each part along the outer surface of the main body to form a plurality of bent members. There is a purpose.

A bag filter for water purification according to the present invention for achieving the above object comprises: an inlet portion closed with an annular member at one end to maintain an annular shape; A body portion connected to the other end of the inlet portion and having a plurality of bent members formed by folding each portion along an outer surface to increase a surface area and maintain a shape; And a bottom portion for closing the other end of the body portion; including, sewing both ends of the inlet portion, the inlet portion and the neighboring end of the body portion, the neighboring end of the main body portion and the bottom portion, and both ends of the main body portion To connect.

The inlet portion, the body portion and the bottom portion may be composed of pure polypropylene (PP) fiber material.

Of the inner surface of the body portion, the valley portions of the flexure member may be connected to at least one shape-holding member.

The shape retaining member may be connected to each of the valleys of the bent members positioned at both sides while crossing each of the one flexing member.

The main body portion may be provided so that the area of the upper end portion is narrowed.
The bag filter for water purification according to the present invention includes an inlet 112 through which contaminated water flows into one side, and an inlet 110 provided with an outlet through which contaminated water flows into the main body 120 on the other side. ); A main body 120 having a plurality of curved members 122 having one end connected to the other side of the inlet part 110 and folded for each part along the outer surface to increase the surface area and maintain the shape; And a bottom portion 130 for closing the other end of the body portion 120, wherein the diameter of the outlet of the inlet portion 110 is a circumference connecting the valleys of the plurality of bending members 122 to each other. It is a size corresponding to the diameter, is formed smaller than the diameter of the circumference connecting the mountain ends of the plurality of bending members 122, and the inner surface of the main body 120 while skipping one by one adjacent valleys on the inner surface of the main body 120 A plurality of shape-holding members connected through the bone and sewing are provided vertically apart, and the shape-retaining member is formed in a polygonal shape, and the neighboring shape-retaining members among the plurality of shape-retaining members spaced up and down are provided on the inner surface of the main body 120 It is provided so that the connection and non-connection states are repeated in one valley formed in a vertical line at, and the water colliding at both ends of the main body 120 is inclined to change the flow toward the center of the main body 120 It is characterized in that it is formed.

According to the present invention, by folding each part along the outer surface of the main body and sewing both ends to form a large number of bent members, the filtering area is made three times wider than that of the existing product, increasing the processing capacity, increasing the use time, and passing through the filtering surface. It has the effect of maximizing the filtration efficiency by reducing the flow rate.

In addition, according to the present invention, damage to the bag filter due to eddy currents can be minimized by making the upper end area of the main body narrower.

In addition, the present invention has the effect of maintaining the shape of the bent member even when a strong hydraulic pressure is applied therein by connecting the valley portions of the bent member with a shape retaining member.

1 is a perspective view showing a bag filter for water purification of the present invention.
Figure 2 is a side view showing a bag filter for water purification of the present invention.
3 is a cross-sectional view showing a state in which the shape-holding member is provided in the upper, middle and lower positions of the inner surface of the main body in the bag filter for water purification of the present invention.
4 is a plan view showing a bag filter for water purification of the present invention.

The above objects, features, and other advantages of the present invention will become more apparent by describing in detail a preferred embodiment of the present invention with reference to the accompanying drawings. Hereinafter, a bag filter for water purification according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

1 is a perspective view showing the bag filter for water purification of the present invention, FIG. 2 is a side view showing the bag filter for water purification of the present invention, and FIG. 3 is a shape-holding member in the upper, middle and lower positions of the inner surface of the body part in the bag filter for water purification of the present invention. It is a cross-sectional view showing a state provided, and Figure 4 is a plan view showing the bag filter for water purification of the present invention.

1 to 4, the bag filter 100 for water purification of the present invention includes an inlet portion 110, a body portion 120, and a bottom portion 130, and a housing having an inlet and an outlet on one side and the other side. (Not shown in the drawing) Contaminated water installed inside and introduced through the inlet is introduced through the inlet 11, and filtered water is discharged to the outlet while passing through the end. In this case, the present invention can improve the capacity and efficiency without additional cost by using the housing of the existing product as it is.

The bag filter 100 for water purification of the present invention may be made of pure polypropylene (PP) fiber material (non-woven fabric or woven fabric, etc.).

The inlet part 110 is closed with an annular member 114 inside the upper end so that the inlet 112 maintains an annular shape, and it is illustrated that the upper end is provided with an inner diameter larger than the lower end, but may be provided so that the upper and lower ends have the same diameter. have. At this time, the inlet portion 110 is manufactured to have a set height, but while being folded in the process of being mounted inside the housing (not shown in the drawing), filtration is substantially implemented by the body portion 120 and the bottom portion 130.

Moreover, the inlet portion 110 abuts the ends of both ends and then connects the abutted portions through a seam SL1.

Here, the annular member 114 is fixed to the inside through sewing in a state provided so that the upper end of the inlet portion 110 is wrapped.

On the other hand, although not shown in the drawing, the auxiliary connection part is connected to the annular member 114 provided on the upper end of the inlet part 110 to increase or decrease the area of the inlet so that it can be connected to the inlet of the housing. In this case, when the upper end of the inlet part 110 is sewn and the annular member 114 is embedded therein, the seam must be opened when the inner diameter of the annular member 114 needs to be adjusted, so such inconvenience can be solved.

To this end, the auxiliary connection portion has a connecting member having an annular groove formed on the bottom surface so that it can be coupled to the annular member 114 located at the upper end of the inlet portion 110, and the annular member 114 of the inlet portion 110 It includes an auxiliary annular member having a different inner diameter, and a connecting member provided to surround the connecting member and the auxiliary annular member at upper and lower ends.

The connecting member is formed in an annular shape, and the groove formed on the bottom surface is formed so as to surround more than half (peak) of the circumferential surface of the annular member 114.

At this time, the groove has a cross-sectional shape in an arc shape, and a plurality of protrusions are formed along the inner circumferential surface on the opposite surface of the inlet, so that when the annular member 114 of the inlet part 110 is bound inside the groove, it is not easily separated by the protrusion. Do not.

The connecting member is provided with pure polypropylene (PP) fiber materials such as the inlet portion 110, the body portion 120, and the bottom portion 130, and after abutting the ends of both ends, the abutted portions are connected with a seam, and the top and bottom The connecting member and the auxiliary annular member located at are closed by sewing while wrapping each.

Therefore, when it is required to adjust the inner diameter of the inlet portion 110 and the inlet 112 formed in the water purification bag filter 100 of the present invention, the groove of the connecting member is inserted into the annular member 114 provided inside the inlet 112 to form an annular shape. The member 114 is bound to the inlet 112, and then the auxiliary annular member is connected to the suction port of the housing.

The body part 120 is connected to the lower end of the inlet part 110 as shown in FIGS. 1, 2 and 4, and has a plurality of bent members 122 folded for each part along the outer surface to increase the surface area and maintain the shape. Is formed.

Here, the main body 120 is connected through a seam SL2 along a lower circumference of the inlet unit 110 and an adjacent upper circumference, and after abutting the ends of both ends, the abutted portion is connected through the seam SL3.

On the other hand, the bent member 122 has a filtration area that is three times wider than that of the existing product line, thereby increasing the processing capacity and increasing the use time, and reducing the flow rate through the filtration surface by about 1/3 due to the improvement in the filtration area. Efficiency can be maximized.

To this end, the bent member 122 is formed in an inclined manner so that it is easy to check and remove the position where filtered foreign matters, etc. are accumulated while being folded at a set interval along the outer surface of the main body 120 so as to have a bend in the outward direction. After each, it is sealed by sewing. In this way, a plurality of curved members 122 are formed in the shape of a mountain, so that a valley is formed in each interval.

In particular, it is possible to minimize damage to the bag filter due to eddy currents by forming the upper end of the bent member 122 to be inclined while the entrance area of the main body 120 is narrowed.

In addition, although the number of the bent members 122 is illustrated as 10, the number of the bent members 122 is not limited thereto, and the number may be increased or decreased, and the connection points of the shape maintaining members 124a, 124b, and 124c may vary according to the number. Therefore, when the number of the bent members 122 is 10, the connection positions of the upper and lower shape holding members 124a and 124c are the same, but when the number is 10 or more or less, the connection positions of the upper and lower shape holding members 124a and 124c Can be different.

Meanwhile, the bent member 122 has been illustrated to have a linear shape in the height direction, but is not limited thereto and may be provided in a stepped shape.

In addition, shape retaining members 124a, 124b, 124c are provided on the inner surface of the main body 120 so that the shape of the bent member 122 is not damaged when excessive pressure is applied thereto.

That is, while the shape maintaining members 124a, 124b, 124c are provided in the form of a band, the shape of the flexing member 122 may be maintained by connecting the valleys of the flexing member 122 among the inner surfaces of the body 120.

At this time, at least one shape-holding member 124a, 124b, 124c may be connected to the inside of the main body 120, and in this embodiment, three are illustrated as being connected.

The shape-holding members 124a, 124b, 124c are provided at upper, middle, and lower positions on the inner surface of the main body 120, and each has a different fixing position. That is, the upper shape holding member 124a crosses each of the one flexing member 122 as shown in FIG. 3(a), while sewing for each of the valleys of the flexure members 122 located on both sides thereof. Connected. Through this, the upper shape retaining member 124a is connected to each valley portion of the bent member 122 in a pentagonal shape based on FIG. 3(a).

And the middle part shape holding member 124b is not fixed to each of the valleys of the same bending member 122 as the upper shape holding member 124a, as shown in FIG. 3(b), but a curved member 122 adjacent thereto. Beginning with, while crossing each of the one flexing member 122, each of the valleys of the flexing members 122 located on both sides thereof is connected through sewing or the like. Through this, the middle part shape retaining member 124b is connected in a pentagonal shape for each valley of the bent member 122 twisted by 36° in the connection form of FIG. 3(a) (see FIG. 3(b)).

In addition, the lower shape holding member 124c is connected to each of the valleys of the same bending member 122 as the upper shape holding member 124a, as shown in FIG. 3(c).

Therefore, the connection point with the bent member 122 is different from the upper and lower shape holding members 124a and 124c and the middle shape holding member 124b, which is not connected by the upper and lower shape holding members 124a and 124c. Even when a large amount of water passes toward the bent member 122 and a high pressure is applied, the middle part shape retaining member 124b is connected to the bent member 122 that is not connected by the upper and lower shape retaining members 124a and 124c. It becomes possible to complement each other.

The bottom part 130 seals the lower end of the body part 120 as shown in FIGS. 1 and 2, and is connected through a seam SL4 along the lower circumference of the body part 120 and the neighboring circumference for this purpose. Let it.

As described above, the manufacturing process of the bag filter 100 for water purification according to the present invention will be described as follows.

First, after facing the opposite ends of the inlet portion 110, the annular member 114 is positioned at the inlet 112 in a state in which the abutted portions are connected through a sewing line SL1, and then the end portions are sewn.

Next, the body part 120 is folded at set intervals along the outer surface of the body part 120, and the both ends thereof are formed to be inclined in a state with the bent members 122 so as to have a bend in the outward direction, and then each of them is sealed by sewing.

Next, the shape-holding members 124a, 124b, 124c that hold the shape of the bent member 122 not to be damaged when excessive pressure is applied to the inner surface of the body part 120 by water. Connect.

At this time, the shape holding members 124a, 124b, 124c have the upper and lower shape holding members 124a and 124c and the intermediate shape holding members 124b different from each other so that the connection points are complementarily prevented from being deformed. .

Next, the bent member 122 is formed, and after abutting both ends of the body portion 120 to which the shape maintaining member 124b is connected, the abutted portion is connected through a seam SL3.

Next, the lower circumference of the inlet part 110 and the upper circumference of the adjacent body part 120 are connected through a seam SL2, and the lower circumference of the body part 120 and the adjacent floor part 130 ) Are connected through the seam (SL4) along the circumference.

Accordingly, the seam SL2 connected along the lower circumference of the inlet part 110 and the upper circumference of the adjacent main body 120 and the seam SL3 connecting the butted portions after abutting both ends of the main body 120 ), and the inlet part 110 constituting the bag filter 100 for water purification through a seam SL4 connected along the lower circumference of the main body 120 and the circumference of the adjacent bottom part 130, and the main body part ( 120) and the bottom part 130 are connected to each other to hold the shape.

In particular, the filtration area is made three times wider than the existing product line by the bent member 122 and is installed in the housing of the existing product line, thus improving capacity and efficiency without additional cost.

Embodiments of the present invention have been described above with reference to the accompanying drawings, but those of ordinary skill in the art to which the present invention pertains can be implemented in other specific forms without changing the technical spirit or essential features. You will be able to understand. Therefore, it should be understood that the embodiments described above are illustrative and non-limiting in all respects.

100: bag filter for water purification
110: inlet
120: main body
122: bending member
124a, 124b, 124c: shape retaining member
130: bottom
SL1, SL2, SL3, SL4: seam

Claims (5)

An inlet part 110 provided with an inlet 112 through which contaminated water flows into one side and an outlet through which contaminated water flows into the main body 120 on the other side;
A main body 120 having a plurality of curved members 122 having one end connected to the other side of the inlet part 110 and folded for each part along the outer surface to increase the surface area and maintain the shape; And
Includes; a bottom portion 130 for closing the other end of the body portion 120,
The diameter of the outlet of the inlet part 110 is a size corresponding to the diameter of the circumference connecting the valleys of the plurality of bending members 122 to each other, and the diameter of the circumference connecting the mountain ends of the plurality of bending members 122 Is formed smaller than,
The inner surface of the main body 120 is provided with a plurality of shape-maintaining members connected through sewing with the bones on the inner surface of the main body 120 while skipping one by one of the neighboring valleys,
The shape holding member is formed in a polygon,
Among the plurality of shape holding members spaced apart from each other, the neighboring shape holding members are provided to repeat the connected and non-connected states in one valley formed in a vertical line on the inner surface of the main body 120,
A bag filter for water purification having an inclined surface at both upper and lower ends of the main body 120 to change the flow of the water colliding toward the center of the main body 120. The method of claim 1,
A bag filter for water purification, characterized in that the inlet portion, the body portion and the bottom portion are made of pure polypropylene (PP) fiber material.
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