CN102824766A

CN102824766A - Filtering device

Info

Publication number: CN102824766A
Application number: CN2011102342086A
Authority: CN
Inventors: 细谷卓也
Original assignee: TOHKEMY Corp
Current assignee: TOHKEMY Corp
Priority date: 2011-06-16
Filing date: 2011-08-12
Publication date: 2012-12-19
Anticipated expiration: 2031-08-12
Also published as: JP2013000653A; JP5793351B2

Abstract

The invention provides a filtering device which can prevent generation of short current flow that may reduce filtering function and which is good in filtering function. A filtering chamber is filled with right amount of fiber filter members, wherein the filtering chamber is located between a perforated plate constituting a support plate of the filter members and an upstream side perforated plate opposite to the perforated plate in a flow direction of raw water, and one end of the fiber filter members are fixed on the perforated plate and the other end of the fiber filter members are fixed on the upstream side perforated plate. In addition, the fiber filter members comprise rope-shaped core materials the length of which is longer with a predetermined amount than that of the filtering chamber in the flow direction of the raw water; and a plurality of resin fiber which is implemented with a fluffy treatment and protrudes to be a radial shape from the outer circumferential side of the core materials and forms numerous annular shapes. The core materials are provided with parts with specified length and without the resin fiber around but only with the core materials.

Description

Filter

Technical field

The present invention relates to be used for catch the filter of impurity from water, waste water, other former water (raw water).

Background technology

Constitute the structure of filter about fiber filter member long on the water (flow) direction that in the filter chamber, is filled in former water; Existence the lower end of filter element is fixed on the porous plate that constitutes said filter chamber and the structure that above said filter element, disposes floating filter element (for example; Patent documentation 1); Also exist two ends up and down to be fixed on the structure (for example, patent documentation 2) on filter chamber's member of formation such as porous plate with said filter element.

Patent documentation 1:JP spy opens the 2003-265907 communique;

Patent documentation 2:JP spy opens the 2002-45612 communique.

In above-mentioned existing example, in former structure, catch big impurity through floating filter element; Through the little impurity of fiber filter components capture, improve filter efficiency, still; Since the structure that the fiber filter member has adopted lower end side only to be fixed, thus not only be difficult to make the impaction state that forms by flowing of former water become evenly, and produce the space sometimes; Former water becomes short-circuit flow (short circuit flow) through this space and flows thus, thus the infringement filtering function.

In addition; In the latter's structure, owing to fixed the two ends up and down of fiber filter member, so the position relation of each filter element that forms by flowing of former water is more stable; And become uniform impaction state; But, when the rate of filtration becomes high speed or because the variation of the filling mode of filter element in the filter chamber, sometimes between filter element or in generation space, the border of filter element and filter chamber's sidewall.In addition; In the latter's structure; Owing to make the outstanding formation fiber filter of the capture element member of impurity at the outer circumferential side of core; So capture element formation is left the part of core portion periphery than the peripheral empty state of core portion, short circuit makes filtering function reduce to former water with empty part is mobile through above-mentioned space.

Summary of the invention

The present invention proposes in view of the shortcoming of existing example, and its purpose is to provide and can prevents to produce short-circuit flow and the good filter of filtering function.

A kind of filter on porous plate that is constituting the filter element gripper shoe and the water (flow) direction at former water and the filter chamber between this porous plate upstream side porous plate in opposite directions, is filled with an amount of fiber filter member; One end of said fiber filter member is fixed on the said porous plate; The other end of said fiber filter member is fixed on the said upstream side porous plate, and said fiber filter member comprises: the core of rope form; Length is more quantitative than the length calipers of said filter chamber on the water (flow) direction of former water; Numerous resin fibre, implementing has fluffy processing, and outstanding for radial and form numerous ring-type from the outer circumferential side of this core; On said core, comprise specific length around not having said resin fibre and the part of core only arranged.

In addition, can in as the resin fibre of impurity capture element, mix the resin fibre that does not carry out fluffy processing of specified quantitative, this specified quantitative is an amount of not damaging the degree of impurity capturing function.

According to the present invention; The impurity capture element is the resin fibre after the fluffy processing, forms numerous ring-type, and outstanding for radial from the outer circumferential side of core; Therefore, can be provided at and be filled with in the filter chamber evenly and the filter element and the good filter of filter operation efficient of state closely.

In addition; For the separating distance between porous plate and the upstream side porous plate; Only there is the part of core to be set at suitable length through becoming not the having resin fibre of impurity capture element; Adjust the impaction state of resin fibre, therefore, can under the state of all-the-time stable, carry out filter operation.

Description of drawings

Fig. 1 is the cutaway view of the schematic configuration of device of the present invention.

Fig. 2 is the key diagram of relation of core and the resin fibre of expression fiber filter member.

The specific embodiment

Accompanying drawing is represented an embodiment of filter of the present invention; In the drawings; 1 is the filter chamber; Filter chamber 1 is that inwall 1A ',

porous plate

2 and 3 couples of said lautertuns 1A of upside porous plate of filtering poor 1A divide and form, and said porous plate 2 is arranged in the lautertuns 1A and constitutes the filter element gripper shoe, and said upside porous plate 3 is arranged in the said lautertuns 1A with this porous plate 2 in opposite directions.In addition; Lautertuns 1A has the inlet (outlet that is also used as the water and air that cleans usefulness) 21 of former water at upstream side; Be provided with the outlet (water filling port that is also used as rinse water) 22 and the inlet 23 that cleans with air of filtration treatment water in the downstream, make these mouthfuls be communicated with (known) with said filter chamber 1.

In this filter chamber 1, accommodate the fiber filter member 4 of right quantity, carry out filter operation, said fiber filter member 4 is a main material with long resin fibre, and is long on the water (flow) direction of former water.

Filter element 4 is by the core 40 of rope form with from the outstanding numerous resin fibre 41 that forms of the outer circumferential side of this core 40 ... Constitute above-mentioned numerous resin fibre 41 ... Constitute the impurity capture element.

Core 40 comprises: the external member 40a of tubular; Form by cotton rope (kernmantle); Said cotton rope with the diameter processed by (wrinkle, volume are big, have retractility, and the are soft) polypropylene fibre after fluffy (wooly) processing roughly twist thread (twine) of 4mm as raw material; Strengthening core 40b is formed by the inboard and bandlet bonding with it that inserts external member 40a.Resin fibre 41 is that the part of the said polypropylene fibre of the line that constitutes said external member 40a (line footpath 88 μ m) is pulled out circlewise and formed from external member 40a.

The core 40 and the resin fibre 41 of embodiment are above-mentioned relation, but the filter element 4 that is made up of these members is not limited thereto, and for example can omit strengthening core 40b.

The raw material of the impurity capture element in the embodiment uses polypropylene fibre (after the fluffy processing), but can use other resin fibres such as nylon after the fluffy processing, Vingon, and the line footpath also is not limited to above-mentioned numerical value.

In addition; In embodiment; Be provided with and around core 40, do not have resin fibre 41 ... And only have the part 40 of core 40 '; The length that makes core 40 utilizes the part of its unnecessary length to realize resin fibre 41 than the distance between said porous plate 2 and the upstream side porous plate 3 thus ... Impaction state, but also can the part 40 of core ' be connected with the end of core 40 will only be arranged through suitable mode such as bonding grade.

Through regulate this part that core is only arranged 40 ' length can adjust the impaction state that filter element 4 is a resin fibre 41.

In embodiment, the part 40 of core ' be arranged on the upstream side of former water is only arranged, but can be arranged on the pars intermedia of the length direction of downstream and core 40.

And; Through erecting device 6 (through the knotting; Card end to wait and to be connected with porous plate 2,3) bottom (on the accompanying drawing) of core 40 is fixed on the said porous plate 2, the upper end is fixed on the said upside porous plate 3, in addition; In filter chamber 1, be set up in parallel the filter element 4 of sufficient amount as required, form filter of the present invention.

When the inlet 21 through lautertuns 1A is pressed into former water (untreated water); Former water reclaims as handling water from outlet 22 through filter element 4; When carrying out filter operation (during former water treatment), the resin fibre 41 of filter element 4 ... Can be tight by former hydraulic pressure, but owing to the two ends of core 40 are fixed on porous plate 2 and the upstream side porous plate 3; So under the situation that does not reach the impaction state more than the predefined degree, carry out filter operation.

In addition, embodiment flows downward former water to carry out filter operation, still, can be opposite, to make former water to above in the device that flows the present invention also be suitable for.

In addition, can in the resin fibre after the fluffy processing, mix the resin fibre that does not carry out fluffy processing.At this moment, yes mixes under the degree of not damaging the impurity capturing function.And; The degree of catching for perusal impurity; Make the resin fibre after the fluffy processing adopt white, make the resin fibre that does not carry out fluffy processing adopt colours such as blueness or green, can color be used as the expression means of the kind of this filter element 4 of expression thus.

Claims

1. a filter is characterized in that,

On porous plate that is constituting the filter element gripper shoe and water (flow) direction and the filter chamber between this porous plate upstream side porous plate in opposite directions at former water; Be filled with an amount of fiber filter member; One end of said fiber filter member is fixed on the said porous plate; The other end of said fiber filter member is fixed on the said upstream side porous plate, and

Said fiber filter member comprises:

The core of rope form, length is more quantitative than the length calipers of said filter chamber on the water (flow) direction of former water,

Numerous resin fibre, implementing has fluffy processing, and outstanding for radial and form numerous ring-type from the outer circumferential side of this core;

On said core, comprise specific length around not having said resin fibre and the part of core only arranged.