CN211753967U - Dead-end filter with tubular microfiltration membrane - Google Patents

Abstract

The utility model relates to a dead end filter of band tube formula microfiltration membrane, detachable a plurality of microfiltration membrane pipe of arranging in the filter housing, the PVC inner end apron is passed respectively at microfiltration membrane pipe both ends, and the filter housing sets up water inlet and drain respectively along vertical direction opening and relative opening part from top to bottom, water inlet connecting pipe net water, and the other end that filter housing one end is sealed and relative is equipped with the water purification export, and the microfiltration membrane pipe adopts half melt sintering shaping of ultra high molecular PE. The utility model provides a take tubular microfiltration membrane's dead end filter can filter and get rid of several preceding prefiltering back remaining colloid, rust, red worm, silt, fungus group etc. and the entrapment rate reaches 99%, PE molecular weight reaches more than 900 ten thousand, membrane pipe surface can not grow fungus or granule etc. and debris adhesion rate is low, can automatic back flush, realize unlimited time back flush, toughness is good, can change the membrane pipe alone, filter fineness reaches 0.2 mu m, specific surface area is big, the production volume can reach several times of current milipore filter.

Description

Dead-end filter with tubular microfiltration membrane

Technical Field

The utility model belongs to the technical field of filtration equipment, concretely relates to dead-end filter of band tube type micro-filtration membrane.

Background

Water is a source of life, water quality safety is the basis of civil stability, the fact that pollution of water areas in China is serious at present and secondary pollution of pipe networks is not contended is that 82% of 532 rivers in the country are polluted in different degrees, about 7 hundred million people in the country drink over-standard coliform water, and about 1.7 million people drink water polluted by organic matters! 126 benthonic animals can be observed in the Yangtze river mouth in 1985, the number of the benthonic animals is reduced to 56 in 1998, and only 52 animals are stored in 2002! Expert warns that the ecology of the water system of the Yangtze river is running for a break within ten years!

The tap water transportation process also causes secondary pollution. At the heart report the running water pipeline pollution many times, the water that the running water was dispatched from the factory reaches standard, but is very easily receiving external pollution at the in-process of carrying to each company or family user, through the long-time out of service, complicated crisscross pipeline, water just is polluted, and the pollution sources mainly have send water piping to be polluted, the dirt of residential area water tank secondary production, the silt and the iron rust that produce in the underground pipe buried underground for a long time, etc.. The water drunk at ordinary times contains pollutants which can not be seen and drunk, and the data show that the pollutants in the water can be as much as 2200 more than that in the water! Heavy metals such as residual chlorine, bacteria, small particle impurities, lead, cadmium, arsenic and the like and organic poisons are filled in tap water.

Currently, most secondary water supply in the market is an ultrafiltration membrane filter which is formed by connecting N fine membrane filaments in parallel and bundling, so that the water pump is required to provide a large driving force to normally work, and the water yield is low; the film forming mode determines that the formula contains organic solvent, the backwashing is difficult, the bad problems of broken filaments and the like can be generated under the condition of multiple washing times, so that the filtering precision is increased, the film filaments are packaged by adopting glue, organic solvent with chemical components can be remained in water, and the organic solvent cannot be guaranteed to be food-grade materials, so that the problem of drinking safety exists, the service life is short, the maintenance is difficult, the occupied area is large, and the cost is high; an RO membrane pipe network filter and a PP cotton safety filter are arranged on the market, the RO filter is in a reverse osmosis mode, ions and mineral substances beneficial to the body can be filtered out, the cost is high, the water yield of a system is low, waste water can be generated, and the membrane can be easily blocked; the PP cotton security filter is pressed and penetrated to influence the filtering precision, is easy to cause secondary pollution, can not carry out back washing, needs to be frequently replaced, and has small filtering area and low water yield.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems existing in the prior art, the utility model provides a dead-end filter with a tubular microfiltration membrane.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a dead end filter of band tube formula microfiltration membrane, including filtering the shell, filtering the shell and being both sides open-ended hollow structure, filtering the shell along vertical opening and set up water inlet and drain respectively at the relative opening part under last, water inlet connecting pipe net water, the inside cover of filtering shell one end is equipped with outer end cover, the one side of outer end cover lid clean water export is placed outwards, filtering the shell inside and lie in outer end cover inboard and set up first PVC inner end apron, filtering the shell inside and lie in the outer end cover outside and set up the holding plate, it is spacing, the other end that filtering the shell is relative from interior to exterior sets gradually second PVC inner end apron and membrane rear end apron, form the dead end, a plurality of microfiltration membrane pipe both ends pass hole and detachable the arranging in filtering the shell on first PVC inner end apron and the second PVC inner end apron respectively.

Furthermore, the filter housing is made of stainless steel, a plurality of membrane tube supporting plates are arranged inside the filter housing at intervals, a plurality of circular through holes are formed in each membrane tube supporting plate, and the microfiltration membrane tubes sequentially penetrate through the circular through holes in the PVC inner end cover plate and the membrane tube supporting plates and are fixed in the filter housing.

Furthermore, the inner side wall of the filter shell and the position connected with the outer end cover are provided with internal threads, and the outer end cover is sleeved on the inner side wall of the filter shell through external threads on the outer end cover.

Furthermore, the cross section of the outer end cover is convex, and the convex part extends to form a purified water outlet.

Further, the fixed pressing plates are provided with two crescent-shaped parts, the inner side wall of the filter shell is provided with a clamping groove at a position contacting with the fixed pressing plates, the fixed pressing plates are clamped into the clamping groove and are connected with the outer end cover through bolts, and the two fixed pressing plates are opposite in surface and surround the outer side of the purified water outlet.

Furthermore, the central axes of the water inlet and the sewage draining exit are on the same straight line, and the water inlet and the sewage draining exit are respectively connected to two upper and lower opposite openings of the filter shell in a sealing manner by electric welding.

Furthermore, a plurality of through holes are formed in the first PVC inner end cover plate, a plurality of blind holes are formed in the second PVC inner end cover plate, the through holes, the blind holes and the microfiltration membrane tubes are identical in number and size and correspond to one another in position, and two ends of each microfiltration membrane tube correspondingly penetrate through the through holes in the first PVC inner end cover plate and the blind holes in the second PVC inner end cover plate respectively and are fixed in the filter shell.

Furthermore, the microfiltration membrane tube is formed by adopting ultra-high molecular PE semi-melting sintering.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the microfiltration membrane tube is made of ultra-high molecular weight PE through a semi-melting grinding and pressing sintering process, the molecular weight can reach 900W or above, air floatation heating is adopted in the sintering process, the temperature difference is extremely small, the intermolecular bonding and curing force is close, the pore-forming is uniform, the surface is smooth, the flexibility is excellent, the attenuation of water flux can be reduced as much as possible in the using process, gradient sintering is adopted in the sintering temperature, the pore distribution of a sintered product is also in gradient distribution, the flux of the product is increased, bacteria can not grow on the surface of the microfiltration membrane tube, the particle attachment rate is low, strong acid and strong base resistance is realized, the environment is protected, and the anti-pollution capacity is;

2. the filtering precision can reach 0.2 mu m, the colloid, rust, red worm, silt, fungus cluster and the like remained after the previous prefiltering can be filtered and removed, and the retention rate reaches 99 percent;

3. the utility model adopts the mode of one inlet (water to be filtered enters through the water inlet), one outlet (the filtered purified water is discharged through the purified water outlet) and the outer inlet and the inner outlet, increases the specific surface area, adopts the dead-end filtration and interception mode to produce water, and the water yield almost reaches 100 percent;

4. the automatic backwashing can be realized, the infinite backwashing is realized, the toughness is good, the strength is high, and the service life and the water yield are not influenced;

5. the front end of the microfiltration membrane tube is sleeved on the port of the filter shell by using an outer end cover, the fixed pressing plate is clamped in a clamping groove in the inner side wall of the filter shell and realizes the position fixation of the filter shell and the outer end cover by screwing bolts, a membrane rear end cover plate is arranged on one side of the filter shell forming a dead end, and when the microfiltration membrane tube is replaced or cleaned, the membrane rear end cover plate at the tail end is opened to extract or pack the microfiltration membrane tube;

6. the front end of the microfiltration membrane tube is arranged in a through hole of the first PVC inner end cover plate, the rear end of the microfiltration membrane tube is uniformly distributed and arranged in a blind hole of the second PVC inner end cover plate at the other end according to the length size of the microfiltration membrane tube, multiple cores can be arranged in parallel in the filtration shell, the specific surface area is large, the production amount can reach several times of that of the existing ultrafiltration membrane, and different core numbers can be assembled according to different arrangement modes to obtain different filtration effective areas.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a cross-sectional view of the present invention;

fig. 3 is a right side view of the present invention;

FIG. 4 is a schematic structural view of the PVC inner end cover plate of the present invention;

wherein, 1-a filter housing; 2-microfiltration membrane tubes; 3-a water inlet; 4-purified water outlet; 5-outer end cover; 6-membrane tube support plate; 7-membrane rear end cover plate; 8, fixing a pressing plate; 9-a sewage draining outlet; 10-a first PVC inner end cover plate; 11-a through hole; 12-second PVC inner end cap plate.

Detailed Description

The technical solution of the present invention is further described below with reference to specific examples, it should be understood that these examples are only for illustrating the present invention, and do not limit the scope of the present invention in any way. The terms used in the present invention generally have meanings commonly understood by those of ordinary skill in the art, unless otherwise specified.

In the following examples, various procedures, methods and reagents not described in detail are conventional methods and products well known in the art.

Example 1

As shown in FIGS. 1-4, a dead-end filter with tubular micro-filtration membrane comprises a filter housing 1, a micro-filtration membrane tube 2, a water inlet 3, a purified water outlet 4, an outer end cover 5, a membrane tube support plate 6, a membrane rear end cover plate 7, a fixed pressing plate 8, a sewage outlet 9, a PVC inner end cover plate 10, a through hole 11 and a second PVC inner end cover plate 12, wherein the filter housing 1 is of a hollow structure with openings at two sides, the filter housing 1 is opened along the longitudinal direction and is respectively provided with the water inlet 3 and the sewage outlet 9 at the openings opposite to each other up and down, the water inlet 3 is connected with a pipe network water, the outer end cover 5 is sleeved at one end or the inner part of the front end of the filter housing 1, one side of the outer end cover 5 with the purified water outlet 4 is placed outwards, the first PVC inner end cover plate 10 is arranged at the inner side of the outer end cover 5 inside the, the opposite other end of the filter housing 1, namely the rear end, is provided with a second PVC inner end cover plate 12 and a membrane rear end cover plate 7 in sequence from inside to outside, and is in a closed state, so as to form a dead end, the microfiltration membrane tubes 2 are provided with a plurality of micro-filtration membrane tubes, and the two ends of each microfiltration membrane tube 2 respectively penetrate through the holes on the first PVC inner end cover plate 10 and the second PVC inner end cover plate 12 and are arranged in the filter housing 1 in a detachable and parallel manner along the axial direction.

Filter housing 1 adopts the stainless steel to make, filter housing 1 inside interval sets up a plurality of membrane tube backup pad 6, the structure of membrane tube backup pad 6 is undefined, membrane tube backup pad 6 and the inside fixed connection of filter housing 1, all set up a plurality of round through-hole on every membrane tube backup pad 6, microfiltration membrane pipe 2 passes through-hole 11 on the end cover board 10 and the round through-hole on the membrane tube backup pad 6 in the first PVC in proper order and is fixed in filter housing 1, the position that filter housing 1 inside wall and meet with outer end cover 5 sets up the internal thread, outer end cover 5 locates filter housing 1 inside wall through the external screw thread cover on it, outer end cover 5 cross-section is the convex, the bulge extends to form water purification export 4.

The axis of water inlet 3 and drain 9 is on same straight line, and the axis sets up the one end 337mm of delivery port 4 apart from filter housing 1, and the difference in height of water inlet 3 and drain 9 is 350mm, and water inlet 3 and drain 9 electric welding sealing connection respectively to two relative openings part from top to bottom of filter housing 1, and water inlet 3 is located drain 9 top.

Stationary platen 8 is equipped with two and all is crescent, and the position that filters 1 inside wall and contact with stationary platen 8 sets up the draw-in groove, and in the draw-in groove was gone into to stationary platen 8 card, stationary platen 8 and 5 bolted connection of outer end cover, two 8 facies of stationary platen were relative and encircle in the 4 outsides of water purification export.

Open on the first PVC inner end apron 10 and have a plurality of through-hole 11, it has a plurality of blind hole to open on the second PVC inner end apron 12, the blind hole, through-hole 11, the number of round through-hole and micro-filtration membrane pipe 2 on the membrane tube backup pad 6, the size is the same and the position one-to-one, the both ends of every micro-filtration membrane pipe 2 correspond respectively and pass through in the first PVC through-hole 11 on the end apron 10 and the round through-hole on the membrane tube backup pad 6 and the blind hole on the second PVC inner end apron 12 and be fixed in filter housing 1 in, also can set up through-hole 11 on the second PVC inner end apron 12 according to actual demand, the user can select in a flexible way, therefore.

In this embodiment 1, the filter housing 1 is cylindrical, and the total length of the filter housing 1 is 1830mm and the width thereof is 168 mm. The microfiltration membrane tube 2 is formed by adopting ultra-high molecular PE semi-melting sintering, and the pipe diameter of the microfiltration membrane tube 2 is 0.2-0.5 mu m. If there is the micro-filtration membrane pipe 2 of damage, open membrane rear end apron 7, directly follow in the PVC end cover plate 10 the through-hole 11 in take out the micro-filtration membrane pipe 2 of damage can, the quick replacement of being convenient for does not influence other micro-filtration membrane pipes 2's use moreover.

The utility model discloses a theory of operation:

the pipe network water flows into the filter shell 1 along the vertical direction through the water inlet 3, water is filtered through the microfiltration membrane pipes 2, the filtered water flows out from the purified water outlet 4, and the sewage outlet 9 is closed at the moment and water is not introduced; when the backwashing is needed, the water inlet 3 is closed, water enters from the purified water outlet 4, enters the inner wall of the microfiltration membrane tube 2 to be pressed, the outer wall of the microfiltration membrane tube is drained, the drain outlet 9 is opened, and the backwashing is carried out, wherein the direction of the backwashing is opposite to the direction of the purified water filtration, and the backwashing can be carried out for a plurality of times.

The utility model has the advantages that:

the utility model provides a take tubular microfiltration membrane's dead end filter, can filter and get rid of several preceding prefiltering back remaining colloid, rust, red worm, silt, fungus group etc. the entrapment rate reaches 99%, ultra high molecular PE molecular weight reaches more than 900 ten thousand, membrane pipe surface can not grow fungus or granule etc. debris incidence is low, can automatic back flush, realize unlimited back flush, toughness is good, can change the membrane pipe alone, filter fineness reaches 0.2 mu m, specific surface is big, the production capacity can reach several times of current milipore filter.

The part of the utility model which is not described in detail can be realized by adopting the prior art, and the description is not repeated here.

The above only is the embodiment of the present invention, not limiting the patent scope of the present invention, all the equivalent structures or equivalent processes that are used in the specification and the attached drawings or directly or indirectly applied to other related technical fields are included in the patent protection scope of the present invention.

Claims (8)

1. The dead-end filter with the tubular microfiltration membrane is characterized by comprising a filter shell (1), wherein the filter shell (1) is of a hollow structure with openings on two sides, the filter shell (1) is provided with a water inlet (3) and a sewage discharge outlet (9) along a longitudinal opening and at the upper and lower opposite openings respectively, the water inlet (3) is connected with a pipe net water, an outer end cover (5) is sleeved in one end of the filter shell (1), one side of the outer end cover (5) with a purified water outlet (4) is placed outwards, a first PVC inner end cover plate (10) is arranged in the filter shell (1) and positioned at the inner side of the outer end cover (5), a fixed pressing plate (8) is arranged in the filter shell (1) and positioned at the outer side of the outer end cover (5) for limiting, a second PVC inner end cover plate (12) and a membrane rear end cover plate (7) are sequentially arranged at the other end, opposite to, form the dead end, a plurality of microfiltration membrane pipes (2) both ends pass first PVC inner end apron (10) and second PVC inner end apron (12) respectively and detachable arrange in filtering shell (1).

2. The dead-end filter with the tubular microfiltration membrane according to claim 1, wherein the filter housing (1) is made of stainless steel, a plurality of membrane tube support plates (6) are arranged in the filter housing (1) at intervals, each membrane tube support plate (6) is provided with a plurality of circular through holes, and the microfiltration membrane tube (2) sequentially passes through the circular through holes on the PVC inner end cover plate (10) and the membrane tube support plate (6) and is fixed in the filter housing (1).

3. The dead-end filter with the tubular microfiltration membrane according to claim 1, wherein the inner side wall of the filter housing (1) is provided with internal threads at the position connected with the outer end cap (5), and the outer end cap (5) is sleeved on the inner side wall of the filter housing (1) through the external threads on the outer end cap.

4. The dead-end filter with tubular microfiltration membrane according to claim 1 or 3 wherein the outer end cap (5) is convex in cross section, and the convex part extends to form the purified water outlet (4).

5. The dead-end filter with the tubular microfiltration membrane according to claim 1, wherein two fixed pressing plates (8) are arranged and are in crescent shapes, a clamping groove is formed in the position, contacting with the fixed pressing plates (8), of the inner side wall of the filter shell (1), the fixed pressing plates (8) are clamped into the clamping groove, the fixed pressing plates (8) are connected with the outer end cover (5) through bolts, and the two fixed pressing plates (8) are opposite in surface and surround the outer side of the purified water outlet (4).

6. The dead-end filter with the tubular microfiltration membrane according to claim 1, wherein the central axes of the water inlet (3) and the sewage outlet (9) are on the same straight line, and the water inlet (3) and the sewage outlet (9) are respectively connected to two openings which are opposite up and down of the filter shell (1) in a sealing manner by electric welding.

7. The dead-end filter with the tubular microfiltration membrane according to claim 1, wherein the first PVC inner end cover plate (10) is provided with a plurality of through holes (11), the second PVC inner end cover plate (12) is provided with blind holes, the microfiltration membrane tubes (2), the through holes (11) and the blind holes are the same in number and are in one-to-one correspondence in position, and each microfiltration membrane tube (2) correspondingly penetrates through the through holes (11) and the blind holes at two ends and is fixed in the filter housing (1).

8. The dead-end filter with tubular microfiltration membrane according to claim 1 wherein said microfiltration membrane tubes (2) are made of ultra high molecular PE.

Images