KR100824558B1 - Filter apparatus composed of assemble parts - Google Patents

Abstract

A prefabricated industrial filter is provided to complete the prefabricated industrial filter by assembling several components into a cartridge type industrial filter, and a flow path forming stand that can be subjected to precision casting as a main component of the prefabricated industrial filter is provided. In a filter comprising: a cylindrical body(2); a cover(30) water-tightly connected to an upper end of the body; a flow path forming stand(4) including a body placement part(8) on which a lower end of the body can be water-tightly placed, a filter placement part, and an inlet(14) and an outlet(16) independently installed; and a fixing unit(34) for connecting the flow path forming stand and the cover in a state that the flow path forming stand and the cover are pressed to each other, a prefabricated industrial filter is characterized in that the flow path forming stand comprises a body(205) of which a bottom face is opened such that the body can be manufactured by a casting method such as die casting and a supporting plate(206) which is water-tightly joined to the opened bottom face of the body.

Description

Filter apparatus composed of assemble parts

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a liquid filter, and more particularly, to a prefabricated industrial filter used in an industrial field such as food or the environment and a flow path forming part thereof.

A filter is a device for purifying or filtering a pure liquid by passing an object in a liquid state in which impurities are mixed or contaminated. Filters used in industries such as food or the environment are usually treated as large installations.

The conventional filter which is the subject of the present invention has a cross-sectional structure as shown in FIG. Several filters F are installed upright in the cylindrical housing 100.

The housing 100 is welded and attached to the lower portion of the cylindrical body 102, usually made of stainless steel, by convex lower plate 104, such as a pressure vessel, by welding the filter seat plate 106 for installing a filter inside the lower side. The upper portion has a structure sealed by the cover 112 by the flange 108 and the bolt means 110. Several filters (F) are installed so as to be compressed by the elastic force of the spring 116 to the fallopian tube (114) fixed by welding to the filter seating plate (106). In addition, the outer wall of the housing is provided with an inlet 118 for introducing the filtering object and an outlet 120 for discharging the filtered liquid, respectively. And the discharge pipe 124 should be attached by welding, respectively.

Since the filter itself or the filtration method thereof is not related to the core of the present invention, detailed description thereof will be omitted. The contaminants introduced through the inlet 118 pass through the filter paper 128 and purify while being introduced into the filter F, and then exit the outlet 120 through the filter seating plate 106. A leg 130 or a support frame is attached to the lower portion of the housing by welding. The shape of the filter F as shown is only an example. That is, the illustrated filter may be sufficiently replaced by a bag filter.

The above structure of the filter has the following problems.

The manufacturing process is complicated and difficult, increasing the cost. Since manpower is required in the manufacturing process, it cannot be connected to factory automation or mass production. The housing itself also has perforations and many welds for the inlet and outlet, making it difficult to ensure the integrity of the watertight.
Hereinafter, a conventional filter of the cartridge type that can solve the above problems to some extent will be described with reference to FIGS. 2 to 4.
Figure 2 is a perspective view of another conventional filter, Figure 3 is an exploded perspective view thereof. 4 is a cross-sectional view taken in the direction AA of FIG. 2.
The body 2 serving as the main body of the filter preferably has the shape of a seamless cylinder. The material of the body is preferably made of stainless steel with corrosion resistance. The thickness of the plate forming the body 2 is set according to the internal pressure and the like.
The lower end of the body 2 is coupled to the flow path forming table 4 of the box shape. The flow path forming zone 4 is a cast product that forms a flow path and has a predetermined height. At the lower end of the flow path formation table 4, the legs 6 are integrally or prefabricated. The upper surface of the flow path forming table 4 is provided with a body seating portion 8 so that the body 2 can be seated while maintaining watertightness, and in general, a step 10 or a groove may be preferable. An annular lower packing 12 may be intervened at the bottom of the body 2 and the boundary of the flow path forming zone 4 to ensure water tightness. The flow path forming zone 4 is provided with an inlet port 14 through which contaminants enter and an outlet port 16 through which the purified liquid substance is discharged. The flow path forming zone 4 is for forming a flow path W communicating with the inlet 14 and the outlet 16, respectively.
Several holes are drilled in the upper plate 18 of the flow path formation table 4. The arc-shaped inlet 20 is in communication with the inlet 14 alone. The filter (F) is installed in the filter connecting hole 22 of the same size arranged in a radial. Each filter connecting hole 22 is in communication with the outlet (16).
As shown in the drawing, three filters F may be installed in the flow path forming table 4. A fallopian tube 24 is joined to each filter connecting hole 22 by welding, and the fallopian tube 24 and the filter connecting hole 22 function as a filter seat.
The filter F is an elongated cylindrical shape, and the upper frame 26 and the lower frame 28 are installed at the upper and lower ends, respectively. The contaminants are filtered through the side walls (filter paper) of the filter and exit to the lower frame 28 through the empty space inside the filter. The lower frame 28 of the filter F is fitted into the fallopian tube 24, and the upper frame 26 is connected to the cover 30, which will be described later, via a spring 32.
The cover 30 is coupled to the top of the body 2 while maintaining watertightness. To this end, the bottom of the cover is provided with a body seating portion 8 ', such as a flow path formation table 4. The body seating portion 8 'of the cover may also be composed of a step 10' and an upper packing 12 '.
According to the exemplary embodiment of the present invention, the cover 30 and the flow path forming member 4 are connected to each other by the fixing means 34 while being pressed together with the body 2 interposed therebetween. The fixing means 34 includes a center rod 36 installed at the center of the cover 30 and the center of the upper plate 18 of the flow path forming table. The central rod 36 has a lower end screwed into a screw hole 38 provided in the upper plate 18 of the flow path forming band, and the upper end protrudes through the cover 30. Tightening nut 40 is screwed to the top of the center bar (36). By tightening the tightening nut 40, the cover 30 and the flow path forming member 4 are coupled to each other while receiving a force in the direction in which they are compressed. Sealing means 39 for watertightness are applied to the boundary between the tightening nut 40 and the cover. The ring 41 integrally attached to the upper surface of the tightening nut 40 is to allow the tightening nut 40 to be rotated by hand after passing the lever in a round bar shape.
A spring 32 is interposed between the upper frame 26 of the filter and the cover 30 as a means for watertightness. The filter F is seated in a state where the filter F is pressed against the fallopian tube 24 by the spring 32. The number of installation of the filter F can be changed sufficiently as needed.
Here, the flow path forming zone 4 is a cast product having a cavity therein, and a cavity must be formed using a casting sand, and the thickness of the wall must be more than a certain degree and is not suitable for making a cast of precise dimensions. Has no structure. In addition, there is an inconvenience in that separate surface processing is required for precise products.

An object of the present invention for the above problems, it is to propose an improvement of the industrial filter and its main parts that can be easily and simple to manufacture, which can greatly reduce the production cost. Specifically, an object of the present invention is to provide a prefabricated industrial filter having a structure in which a number of components can be assembled by cartridge type, and a flow path forming table having a precision casting structure as a main component thereof.

The above object is a cylindrical body; A cover tightly coupled to the top of the body; A flow path forming unit having a body seating portion to which the bottom of the body can be seated to be watertight and having a filter seating portion and having an inlet and an outlet installed independently; In the filter comprising a fixing means for connecting the flow path forming table and the cover in a crimped state with each other;
The flow path forming table is achieved by a prefabricated industrial filter comprising a main body having an open lower surface so as to be manufactured by a casting method such as die casting, and a support plate which is tightly coupled to the open lower surface of the main body. .

Further, another object of the present invention is achieved by including a main body which is open at a lower surface of the flow passage forming body and enables precision casting by die casting, and a support plate which is tightly coupled to the open lower surface of the main body.

According to the above configuration, it is possible to provide an industrial filter that can be assembled by assembling three or more components and a flow path forming table as a useful part thereof.

Furthermore, the flow path formation zone is a structure capable of precision casting by die casting. Therefore, after the production of the flow path forming zone, there is no need for a separate post-processing, thereby increasing the productivity of the filter. In addition, it can be manufactured with accurate dimensions to improve the reliability of the product, it is also easy to weld and attach accessories such as fallopian tubes. In addition, it provides an advantage that can manage the interior of the flow path clean.

Hereinafter, with reference to the accompanying drawings in the detailed description of the present invention will be described in more detail. 5 to 6 is an exploded perspective view and a cross-sectional view of the flow path forming band of the prefabricated industrial filter according to the embodiment of the present invention. Figure 7 is a longitudinal cross-sectional view of the prefabricated industrial filter in accordance with an embodiment of the present invention.
Since the basic construction and operation are not the same as those described in the background art, description thereof will be omitted. However, the same components as those described in the background art are given the same reference numerals as in FIGS. 2 to 4.
As can be seen with reference to the cross-sectional view of FIG. 5, the flow path forming table 4 includes a main body 205 and a support plate 206. The main body 205 is generally formed by casting to form a flow path W for the inlet 14 and the outlet 16. In particular, the flow path formation zone 4 has a structure in which the lower side is open. According to such a structure, the main body 205 can be manufactured by die casting by upper and lower molds, without using a casting sand. As is well known, die casting is a molding method widely used in precision casting. As the material of the main body 20, aluminum or alloys thereof are generally good, but those of other materials such as iron are not excluded.

delete

delete

delete

delete

delete

delete

delete

delete

delete

delete

delete

According to such a structure, the thickness of the upper plate 18 of a main body can be made constant, and also it can be made as thin as possible in the range sufficient for strength maintenance. In addition, it becomes possible to accurately install the position of the filter connecting hole 22, it is possible to keep the internal space clean.

" 형태로서 상방향에서 가해지는 중량을 견딜 수 있는 구조이다. 본체(205)와 받침판(206)은 플랜지(미도시됨)와 가스켓을 매개로 하여 볼트로써 체결되거나, 용접에 의해 영구접합될 수도 있다. 즉, 수밀을 유지할 수만 있다면 받침판(206)과 본체(205)의 결합 방식에는 제한이 없다. The backing plate 206 may vary in its shape. However, according to one embodiment of the present invention, the support plate 206 has a cross-section such that the cup is laid down.

It is a structure that can withstand the weight applied in the upward direction. The body 205 and the support plate 206 may be bolted through a flange (not shown) and a gasket, or may be permanently joined by welding. That is, as long as it can maintain watertightness, there is no limitation in the manner of coupling the support plate 206 and the main body 205.

The horizontal plate 250 of the backing plate has a central convex shape so that the lower end of the cylindrical side plate 252 integral with this is bent in the radial direction. Side plate 252 serves as a leg. The height of the side plate 252 corresponds to the installation height of the filter. As a means for installing the filter in a fixed place, a mounting screw hole is perforated at the bent portion of the lower side of the side plate 252. The backing plate 206 is typically molded in a press and should have a corrosion resistant material.

 The shape of the flow path formation zone 4 may be variously modified. In particular, various modifications are expected depending on the number and shape of the filters (F). However, all of these are included in the claims of the present invention unless they further include a particular technical idea.

1 is a schematic longitudinal cross-sectional view of a conventional industrial filter.

Figure 2 is a perspective view of a conventional prefabricated industrial filter, Figure 3 is an exploded perspective view thereof. 4 is a cross-sectional view taken along the direction A-A of FIG. 2.

delete

FIG. 5 is an exploded perspective view of the flow path forming zone according to the embodiment of the present invention, and FIG.
Figure 7 is a longitudinal cross-sectional view of the prefabricated industrial filter in accordance with an embodiment of the present invention.

Explanation of symbols on the main parts of the drawings

2 ; Body 4; Euro formation band

8 ; Body seat

delete

14; Inlet 16; outlet

18; Top plate 20; Inflow hole

22; Filter connector 24; fallopian tubes

30; Cover 32; spring

34; Fastening means 36; Center rod

38; Thread hole 40; Tightening Nut

205; Main body 206; Support Plate
250; Diaphragm 252; shroud

Claims (2)

Cylindrical body 2; A cover 30 which is watertightly coupled to the top of the body 2; A flow path forming unit (4) having a body seating portion (8) at the bottom of the body (2) capable of being watertightly maintained, having a filter seating portion, and having an inlet (14) and an outlet (16) installed independently; In the filter comprising a fixing means (34) for connecting the flow path forming table (4) and the cover (30) in a crimped state with each other; The flow path forming table 4 includes a main body 205 having an open lower surface so as to be manufactured by a casting method such as die casting, and a support plate 206 which is watertightly coupled to the open lower surface of the main body 205. Prefabricated industrial filter comprising a. 2. The support plate (206) of claim 1, wherein the support plate (206) comprises a cross plate (250) and a cylindrical side plate (252) having a cross-section "

Prefabricated industrial filter, characterized in that the form.

Images