CN2485023Y - Miniature porous filter - Google Patents

Abstract

The utility model relates to a significant improvement on structural design of combined miniature porous filter. Opening of tube type filter having one blind end is overturned. The tube type filter is communicated with a liquid collecting tube through screw, forming an independent filtering unit. With help of a rectangular shell, original common filter is reformed to be a novel filter having a plurality of filtering units with equal area, which can overcome the defect of blockage, uneven cleaning effect in reverse blow, different areas of filtering units and difficult calculation. The utility model is a beneficial attempt in optimizing structure of filter.

Description

Novel microporous filter

The utility model belongs to equipment for separating liquid from solid, and specifically a kind of meticulous sedimeter is adapted to industries such as chemical industry, pharmacy, boiler especially and handles for water purification.

The recycling of waste water is not only to come from thin environmental protection situation to become, be that also industrial development makes water resource more and more poorer, contain the meticulous filtration treatment of waste water needs of solid suspension after the use Separation of Solid and Liquid form the basic demand that dried filter cake just can meet this procedure.The present poromerics that uses is made the enclosed chimney filter of an end and is adopted in knockdown filter as filter medium in a large number.Consolidating in the liquid stays thing to be blocked in the outer accumulation of tube wall and forms filter cake gradually, just may produce current retardances when cake layer reaches certain thickness, and needs blowback to remove the filter cake of chimney filter outer surface and make microporous filter tube regeneration recover media feature.In the filtration device structure that uses, all be to have a middle and lower part to be provided with the housing of inlet and slag notch now, be provided with the microfiltration tube group in the housing.The outlet of microfiltration tube is concentrated with collector tube and is connected.Existing structure is the microporous filter tube liquid outlet vertically upward, and collector tube is in the upper end of housing, and the water of filtration is drawn outside the housing by collector tube.The liquid mouth that draws from collector tube during blowback imports compressed air and forms microporous filter tube back-pressure gas-liquid from inside to outside and make and be attached on the microporous filter tube outer wall and the solids that gets lodged in the micropore comes off, and discharges from the slag notch of housing.Above traditional structure has bigger defective: at first being when begin new filter cycle after each blowback does not have the small amount of solid particle can pass tube wall under differential pressure action in chimney filter owing to form filter cake as yet; because making a gesture of measuring the bottom, lower end that bigger particle can drop to microfiltration tube for low flow velocity district in the pipe can not discharge with liquid stream; cause the bottom compacting to cause the bottom micropore to stop up during blowback on the contrary, cause the vicious circle aggravation.Because the moisture content the when mode at filtered fluid upper reaches causes blowback to begin in the micropore is difficult for discharging, make moisture content infiltrate filter cake during blowback, cake moisture is increased be difficult for forming a dried blob of slag, be unfavorable for transportation, also cause the waste of liquid.Compressed air or high-pressure cleaning liquid are subjected to greater impact power near port section during pulse cleaning, clean comparatively thorough, and it is less relatively away from part surge in the end, cleaning performance is also good, causes microporous filter tube to wash inhomogeneous meeting and has influence on the service efficiency of single unit system and life-span or the like defective and cause further improved necessity.

The purpose of this utility model provides a kind of novel microporous chimney filter formula structure of filter design, improves quality and each period treatment amount of filtering to overcome existing defective.

It is that the tube-type micropore screen pipe of cecum is designed to the form that Open Side Down and is connected on the collector tube that is positioned at lower housing portion that key Design of the present utility model is an end, and by the support that is located at the chimney filter cecum its grouping is arranged and to be positioned in the housing.Even design makes small in the filtrate stay thing to pass the chimney filter wall at each filtration initial stage admittedly to sneak in the chimney filter like this, also can import collector tube under the double action of gravity and flow velocity flows out, can not form interior deposition, thereby cause the vicious circle of filter quality and treating capacity in the lower end.Because the mutual coordination of collector tube and last end support is fixed, chimney filter more firmly is arranged in the housing can descend because of forming the loosening disposal ability that influences whole device of revealing under the effect of backwash.

Owing to taked the structure of time fluid formula, the deposition that can be created in the collector tube upper surface in the thing infall process is stayed in consolidating of concentrating through filtering processing in the lower housing portion shell so collector tube is located at, designed the angular structure of collector tube upper surface for this reason and especially, and corresponding flushing element.

How further specify the purpose of this utility model below in conjunction with the accompanying drawing embodiment that provides realizes:

Fig. 1 is a structural representation of the present utility model.

Fig. 2 is the vertical view of housing.

Fig. 3 is the connection diagram of microporous filter tube and collector tube.

Fig. 4 is the A-A view of Fig. 3.

Fig. 5 is the position and the structural representation of flushing jet pipe.

Wherein 1 is the filter upper end cover, and 2 is microporous filter tube, and 2A is the connecting filament head, and 3 is housing, and 4 are the flushing jet pipe, and 5 is the housing lower end, and 6 is liquid outlet, and 7 is rotating push-pull valve, and 8 is feed tube, and 9 is collector tube, and 10 is locating support, and 11 is blow-down pipe, and 12 is slag notch.

From the embodiment accompanying drawing that provides as can be seen for downward microporous filter tube 2 better is connected with collector tube 9, designed connecting filament head 2A especially, the internal diameter of a silk 2A can be according to the concrete condition specific design of filter liquide and unified 2 supporting connections of microporous filter tube, its disassembling, assembling and replacing is convenient, can adapt to the needs of different condition and flow.The example that provides from accompanying drawing 3 can illustrate collector tube 9 between two the silk 2A in upper surface, all be provided with dihedral plate 2B, make down the solid of sedimentation be difficult for forming the upper surface deposition.

Traditional housing cross section is circular, be difficult to accomplish that with the filter element that collector tube 9 is formed each unit filter area is identical for the microporous filter tube 2 that Open Side Down, this does flow, pressure cause design and calculates when setting difficulty for filter, and when cleaning blowback, very easily cause each chimney filter internal pressure inconsistent, and average effect difference is too big, amass so in this design, housing 3 is designed to the square-section, be beneficial to form the shell inner filtration unit that filter area equates.The bottom of housing 3 is evenly shunk and is formed circular slag notch 12.New housing design is easy to according to the filtrate character flow that is generated in the individual art production process, calculate rational assembled unit, so that filter integral body forms classic treatment effect and maximum treating capacity with minimum damping, and make and guarantee that with cleaning operation the long-time running of filter is good with simple possible.

The blow-down pipe 11 that when improving housing 3 geometries, on housing 3 upper end covers, designs.Blow-down pipe 11 can apply air compression filter cake before blowback is cleaned, make its dehydration form dry filter cake.After emitting, blowback is easy to transportation and utilization more again.

In addition, be provided with flushing jet pipe 4 by the square-section to the place, junction surface that circle is punctured into the conical surface in housing 3 bottoms.There is micropore to make rinse water spray to shell inner surface on this jet pipe and particularly shrinks the conical surface in the bottom, stay admittedly in the deposition at this place to prevent the little shape thing of solid.

All directly discharge from slag notch 12 by the dirt that anti-cleaning and hydro-peening clean, slag notch is provided with a filter industry rotating push-pull valve 7 (being commonly called as glasses valve) commonly used.Slag notch 12 sealings during with the assurance normal filtration are to keep the outer interior pressure reduction of microfiltration tube.

The microporous filter tube combined filter of making by the design, use easy, supporting convenience, exact science, treating capacity is big, it is long to filter the cleaning frequency, and has overcome its conventional filter and penetrate obstruction, the blowback weak effect, defectives such as the supporting calculating of complicated operation is not smart, can make filter downgrade design under the prerequisite that guarantees treating capacity, quality obviously be better than traditional structure on filtered fluid and filter cake, be an important breakthrough on the microporous filter tube combined filter structural design.

Claims (6)

1, a kind of novel microporous filter, housing (3) by band inlet (8) and slag-drip opening (12), the filter element of being made up of microporous filter tube (2) group and the collector tube (9) that is connected with microporous filter tube (2) in the housing (3) is formed, it is characterized in that microporous filter tube (2) opening is connected on the collector tube (9) down, and be fixed into unit cell arrangement by the support (10) that is located at screen pipe (2) cecum.

2,, it is characterized in that microporous filter tube (2) is communicated with collector tube (9) by silk head (2 A) according to the said filter of claim 1.

3,, it is characterized in that adding dihedral plate (2B) on the end face that collector tube (9) makes progress between each head (2A) according to the said filter of claim 2.

4, according to the said filter of claim 1, it is characterized in that housing (3) main part cross section is a rectangle, the bottom is shrunk to circular slag notch (12), and housing (3) upper end cover adds evacuated tube (11).

5,, it is characterized in that the slag-drip opening (12) of housing (3) locates to be provided with a rotating push-pull valve (7) according to the said filter of claim 4.

6, according to the said filter of claim 4, it is characterized in that main body is provided with a cleaning jet pipe (4) with following contraction conical surface binding site in housing (3), jet pipe is provided with the inner surface that its direction of spout is pointed to housing.

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