JP4201622B2 - Line filter - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a line filter used mainly for filtering various liquids in the food industry and the pharmaceutical industry.
[0002]
[Prior art and problems]
In this type of conventional line filter, publicly known documents cannot be specifically mentioned, but a filtrate inlet is provided on one end side of the cylindrical main body in a direction orthogonal to the cylindrical main body, A filtrate outlet is provided concentrically at the opening on the other end side, and a cylindrical filter body is inserted and arranged concentrically inside the cylindrical body, and a filtrate introduction part is formed on the outer peripheral side of the filter body. And the cover body which obstruct | occludes the one end side opening part of a cylindrical main body is provided so that it can insert / remove integrally with a filter body.
[0003]
Thus, in this conventional line filter, the filtrate inlet provided on one end side of the cylindrical main body for supplying the filtrate is cylindrical from the inner surface position of the lid that closes the one end side opening of the cylindrical main body. When the cleaning liquid is poured from the filtrate inlet to wash the inside of the line filter, the inner side surface of the lid and the filtrate inlet part are provided. The space portion between the two became a so-called blind spot, and the cleaning liquid poured from the filtrate inlet stayed in the space portion, and the inside of the cylindrical body and the entire filter body could not be cleaned effectively.
[0004]
In view of the above-described problems, the present invention can effectively clean the inside of the cylindrical body and the entire filter body without forming a blind spot portion in which the cleaning liquid poured from the filtrate inlet stays inside the cylindrical body. An object of the present invention is to provide such a line filter.
[0005]
[Means for Solving the Problems]
According to the first aspect of the present invention, the filtrate inlet 2 protrudes from one end of the cylindrical main body 1 in a direction perpendicular to the cylindrical main body 1, and the filtrate outlet 3 extends from the other end opening 1 b of the cylindrical main body 1. Are arranged concentrically, a cylindrical filter body 4 is inserted and arranged inside the cylindrical main body 1, a filtrate introduction part 5 is formed on the outer peripheral side of the filter body 4, and one end side opening of the cylindrical main body is formed. In the line filter provided with a lid body 6 that closes the portion 1a, the filtrate inlet 2 has a lid body 6 in which the outer end S of the inner peripheral surface closes the one end side opening 1a of the cylindrical body 1. It is provided so as to be substantially positioned on the inner side surface 6a .
[0007]
Claim 2 is the line filter of claim 1, wherein the inspection viewing window 18 be provided on predetermined portions of the cylindrical body 1.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
1 is a half sectional front view showing an embodiment of a line filter according to the present invention, FIG. 2 is a plan view of the line filter, and FIG. 3 is an enlarged detailed sectional view of one end side of the line filter. In these drawings, reference numeral 1 denotes a stainless steel cylindrical body, 2 denotes a filtrate inlet integrally projected in a direction perpendicular to the cylindrical body 1 on one end side of the cylindrical body 1, and 3 denotes a cylindrical body. 1 is a filtrate outlet provided concentrically with the other end opening 1b.
[0009]
Reference numeral 4 denotes a cylindrical filter body, which is concentrically inserted and arranged inside the cylindrical main body 1, and is supplied to the outer peripheral side of the filter body 4 from the filtrate inlet 2 into the cylindrical main body 1. A filtrate introduction part 5 for allowing the filtrate to be filtered through the filter body 4 from the entire longitudinal direction of the filter body 4 is formed. Reference numeral 6 denotes a stainless steel lid that closes the one end side opening 1 a of the cylindrical body 1, and this lid 6 is provided integrally with the filter body 4, and is filtered simultaneously with the attachment and detachment of the lid body 6. The body 4 can be inserted and removed.
[0010]
The filtrate inlet 2 is provided at a position near the one end of the cylindrical main body. Specifically, as can be seen from FIG. 3, the filtrate inlet 2 has an outer end S of the inner peripheral surface 2 a of the inlet 2 that closes the one end side opening 1 a of the cylindrical body 1. A blind spot (between the inner surface 6a of the lid 6 and the filtrate inlet 2 when the washing liquid is poured into the cylindrical main body 1 from the filtrate inlet 2 is provided so as to be positioned substantially on the inner surface 6a. The part where the liquid stays is not possible.
[0011]
In this embodiment, the filtrate inlet 2 is provided such that the outer end S of the inner peripheral surface 2a is substantially positioned on the inner surface 6a of the lid body 6, but the outer end S of the inner peripheral surface 2a is provided. May be at a position slightly away from the inner surface 6 a of the lid 6. However, as in this embodiment, it is provided so that the outer end S of the inner peripheral surface 2a of the filtrate inlet 2 is substantially positioned on the inner surface 6a of the lid 6 between the side surface 6a of the lid body and the filtrate inlet 2. It is most effective for preventing blind spots in between.
[0012]
A lid fitting portion 7 that is outwardly spread is integrally formed at one end of the cylindrical main body 1. The filtrate outlet 3 provided in the other end opening 1 b of the cylindrical main body 1 is formed so that the inner diameter thereof is smaller than the inner diameter of the cylindrical reinforcing frame 8 inside the filter body 4. A filter body mounting step 9 is formed at the inner end of the filtrate outlet 3.
[0013]
The filter body 4 is made of a sintered wire mesh formed in a cylindrical shape, and a cylindrical reinforcing frame 8 made of stainless steel is inserted and disposed inside the filter body 4. The reinforcing frame 8 is made of a punching metal made of stainless steel. As can be seen from FIG. 3, both end portions of the cylindrical filter body 4 are externally fitted to stainless steel mounting rings 10 and 11, and both end portions of the cylindrical reinforcing frame 8 inserted into the filter body 4 are The mounting rings 10 and 11 are fitted inside, respectively, and the mounting rings 10 and 11 are attached to both ends of the cylindrical filter body 4 and the reinforcing frame 8, respectively.
[0014]
The attachment ring 10 on one end side of the cylindrical filter body 4 and the reinforcing frame 8 is fixed to the inner surface 6a of the lid body 6, and the attachment ring 11 on the other end side is attached to the filter body at the inner end portion of the filtrate outlet 3. An attachment frame 12 that can be engaged with the stepped portion 9 is attached. Therefore, the cylindrical filter body 4, the reinforcing frame 8, the lid body 6 and the mounting frame 12 inserted into the cylindrical filter body 4 are assembled together through the mounting rings 10 and 11 to form a unit structure U, which is cylindrical. The main body 1 can be taken in and out from the opening 1a on one end side.
[0015]
The lid 6 is formed in a shape that can be fitted to the lid fitting portion 7 at one end of the cylindrical main body 1, and the inner end of the outer circumference of the lid 6 and the inner circumference of the lid fitting 7. A watertight packing 13 is interposed between the end portions. Further, a handle 14 for inserting / removing the unit structure projects from the outer surface of the lid 6. Reference numeral 15 denotes a clamp that fixes the lid 6 in a state of being fitted to the lid fitting portion 7 at one end of the cylindrical main body 1, and the pair of semicircular clamp bodies 16, 16 are joined to the lid fitting portion 7. The taper portion 7 a and the outer peripheral taper portion 6 a of the lid body 6 are fitted with each other and tightened with a tightening bolt 17.
[0016]
As shown in FIGS. 1 and 2, a pair of inspection viewing windows 18, 18 are provided on both sides of the cylindrical main body 1, for example, at the center. Each inspection window 18 includes a window opening 19 opened in the cylindrical main body 1, a stainless steel glass mounting frame 21 fitted into the window opening 19 via a packing 20, and the glass mounting frame. A glass 22 attached to 21, a glass presser frame 23 made of stainless steel disposed outside the glass attachment frame 21, and a clamp 24 for fixing the glass presser frame 23 to the peripheral frame 19 a of the window opening 19. Consists of. Since the clamp 24 has the same configuration as the clamp 15, the same components are denoted by the same reference numerals and description thereof is omitted.
[0017]
In the use of the line filter configured as described above, when the filtrate of the food material is pressurized and supplied from the filtrate inlet 2, the filtrate flows into the filtrate introduction part 5 on the outer peripheral side of the filter body 4, The filtrate is filtered from the filtrate introduction section 5 through the filter body 4, and the filtrate is discharged from the filtrate outlet 3 to the outside through the inside of the filter body 4.
[0018]
Further, after using the line filter as described above, when the cleaning liquid is poured from the filtrate inlet 2 in order to wash the inside of the line filter, the washing liquid poured from the filtrate inlet 2 The filter body 4 and the reinforcing frame 8 inside the filter body 4 and the reinforcing frame 8 inside the filter body 4 and the inner surface side of the lid body 6 and the filtrate outlet 3 portion are washed while flowing into the filtrate introduction section 5. However, at this time, since the filtrate inlet 2 is provided at a position at one end of the cylindrical main body, it passes straight through the filtrate 4 and the reinforcing frame 8 inside thereof from the filtrate inlet 2. So that the so-called blind spot, in which the liquid is retained, cannot be formed, and the inner side surface 6a portion of the lid body 6, the filter body 4 close to the inner side surface 6a portion, and the end portions of the reinforcing frame 8 must be sufficiently washed. Can be cylindrical Internal body 1, it is possible to effectively clean the entire filter body 4 and the reinforcing frame 8 every corner.
[0019]
Further, during use of the line filter, the filtration state of the filtrate inside the cylindrical body 1 and the clogged state of the filter body 4 are passed through the inspection viewing window 18 provided in the center of the cylindrical body 1. Can be confirmed. Thus, for example, if the clogged state of the filter body 4 is confirmed, the filtering operation is interrupted, the unit structure U is extracted from the cylindrical body 1, and the filter body 4 is replaced with a new one. 4 cleaning can be performed.
[0020]
Further, in this line filter, the reinforcing frame 8 is inserted and arranged in the filter body 4 to back up the filter body 4, so that the pressure of the filtrate supplied under pressure from the filtrate inlet 2 into the cylindrical body 1 is increased. Thus, the filter body 4 is not deformed or damaged. In this embodiment, the reinforcing frame 8 is formed by punching metal. However, the reinforcing frame 8 is not limited to the punching metal but may be a bone frame structure.
[0021]
【The invention's effect】
According to the line filter of the first aspect of the present invention, the filtrate inlet is substantially positioned on the inner side surface of the lid body whose outer end of the inner peripheral surface closes the one end side opening of the cylindrical body. in by providing, after using the line filter, when pouring the washing liquid from the filtrate inlet to wash the internal line filter, it straight liquid passing through the filter body is inside of the lid body side face from the filtrate inlet The so-called blind spot that stays in the vicinity can no longer be formed, and the inner side surface portion of the lid body and the end portion of the filter body close to the inner side surface portion can be sufficiently cleaned, so the inside of the cylindrical body, the filter body and the reinforcement The entire frame can be cleaned effectively to every corner.
[0023]
In the case where an inspection viewing window is provided in a required portion of the cylindrical main body as described in claim 2, the filtration state of the filtrate inside the cylindrical main body and the eyes of the filter body are passed through the inspection viewing window. It is possible to check the clogging state and other matters, and to take measures quickly.
[Brief description of the drawings]
FIG. 1 is a half sectional front view showing an embodiment of a line filter according to the present invention.
FIG. 2 is a plan view of the line filter.
FIG. 3 is an enlarged detailed sectional view of one end side of the same line filter.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Cylindrical main body 2 Filtrate inlet 2a Inner peripheral surface S of filtrate inlet S Outer end of filtrate inlet inner peripheral surface 3 Filtrate outlet 4 Filter body 5 Filtrate introduction part 6 Lid 6a Lid inner side 18 Inspection peep window

Claims (2)

A filtrate inlet is provided on one end of the cylindrical main body so as to project in a direction perpendicular to the cylindrical main body, and a filtrate outlet is provided concentrically at the opening on the other end of the cylindrical main body. In a line filter in which a filter body is inserted and arranged, a filtrate introduction part is formed on the outer peripheral side of the filter body, and a lid body that closes one end side opening of the cylindrical body is provided, the filtrate inlet is A line filter characterized in that an outer end of the inner peripheral surface is provided so as to be substantially positioned on an inner surface of a lid that closes an opening at one end of a cylindrical body . The line filter according to claim 1 , wherein an inspection viewing window is provided in a required portion of the cylindrical main body.

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