CN203208906U

CN203208906U - Low-pressure filter structure and device thereof

Info

Publication number: CN203208906U
Application number: CN2013201482765U
Authority: CN
Inventors: 张亚绮
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-03-28
Filing date: 2013-03-28
Publication date: 2013-09-25
Anticipated expiration: 2023-03-28

Abstract

The utility model relates to a low-pressure filter structure and a device of the low-pressure filter structure, and in particular relates to a structure which can provide low filtering resistance and achieve high water flux performance. The lower-pressure filter structure comprises a filter body and a plurality of thin hollow composite membrane filtering pipes, wherein the plurality of thin hollow composite membrane filtering pipes are arranged in the filter body and are used for filtering or carrying out micro-filtering, osmosis and reverse osmosis to intercept pollutants such as bacteria, heavy metal, chemical toxic substances and divalent ions or carry out desalination treatment; the filter body is a hollow long circular tube body which is provided with a water inlet, a waste water outlet and at least one purified water outlet; the low-pressure filter structure is mainly characterized in that the plurality of thin hollow composite membrane filtering pipes are formed in bundles mutually to be arranged in the hollow long circular tube body, and the water inlet and the waste water outlet of the hollow long circular tube body correspond to the head and tail hollow ends of the thin filter pipe, and therefore, an energy-saving effect can be achieved by utilizing low/negative pressure.

Description

Low-pressure filter structure and device thereof

Technical field

The utility model refers in particular to a kind of filtration device structure and device thereof that utilizes low pressure or even negative pressure can carry out water filtration about a kind of low-pressure filter structure and device thereof.

Background technology

Common reverse osmosis, permeation filtration or even high filtration of industrial quarters all is to adopt the physics mode particle matter that fluid is contained to give filtration, purification, filter membrane hole pore size in the filter determines the degree of removable particle matter (as: microorganism, particle, heavy metal, ion), in general: employing hole aperture is that the bacterium that the filter membrane of 0.1～10 micrometer range all can include liquid is filtered, and employing hole aperture is that the filter membrane of 0.01～0.1 micrometer range all can remove bacterium, most of virus, heavy metal and silt.

Can be learnt by above-mentioned, filter membrane separation efficiency and depend on its pore size, but, the more little more easy obstruction in filter membrane aperture, more high required pressure is more big relatively for the filtration resistance that produces, even need to adopt high pressure group Pu etc. that the equipment running of high voltage power can be provided, also need expend many energy simultaneously filter is carried out smoothly.

Only, industry is strict day by day for separative efficiency, so that energy requirement is increasing, it is more and more higher to cause water to purify cost, therefore, industry develops and various different filter type, uncommonly can take into account energy-conservation and high separating efficiency, modal is exactly the centrifugal filtration process that the centrifugal inertia that produces when rotating reaches energy-saving effect, its mode is exactly filter membrane to be coincided each other closely to curl earlier to be cylindric (as shown in Figure 1), again former water (liquid to be filtered) is injected this cylindric center hub and also impose high speed centrifugation power simultaneously, former water is thrown away at a high speed by filter membrane by centrifugal force remove the pollutant in the former water and then reach the effect of filtration.

The above-mentioned centrifugal force that utilizes makes former water waltz through this filter membrane, but find to have problems and restriction in the use, for example: because the filter membrane that adopts must curl earlier for cylindric, make the filtration path of former water reality long, need to adopt high pressure to promote, filter membrane easily blocks, contrary clean be difficult for, flow rate is not high and separative efficiency such as can't improve at various shortcoming, in addition, filter membrane hole aperture is restricted can not be too small, otherwise can't remove the pollutant of the overwhelming majority in the former water effectively.

Based on above-mentioned, how to take into account effectively high separating efficiency and effectively energy-saving effect be the problem of studying intensively for the utility model.

The utility model content

The purpose of this utility model is providing a kind of low-pressure filter structure, and its low (bearing) of utilizing the hollow form filter material to reach low filtration resistance and high permeable amount is pressed (the minimum 0.1Mpa of reaching ± 10%) filter, and then reaches energy-conservation purpose.

For achieving the above object, the utility model discloses a kind of low-pressure filter structure, it is characterized in that this structure comprises: one filters body and a plurality of hollow form composite membrane filtration tubule; This filtration tubule is located in the filter body; This filtration body is the oval body of a hollow form, this oval body has water inlet, wastewater outlet and pure water inlet at least, it is characterized in that: these a plurality of hollow form composite membranes filter the tubule bunchy and are located in the oval body of this hollow form, these a plurality of hollow elongated tubular and this water inlet and wastewater outlet be positioned at same outrigger shaft to, the water inlet of the oval body of this hollow form and wastewater outlet are respectively to head and tail hollow end that should a plurality of filtration tubules.

Wherein, this hollow form composite membrane filters the hole of a plurality of pore sizes decision of the tube wall tool filtering accuracy of tubule.

Wherein, this hollow form composite membrane filters tubule and is made up of a supporting layer and that is used for strengthening tubule be responsible for damming high molecular polymerization layer and the feltwork sheath of foreign matter at least.

Wherein, this hollow form composite membrane filters tubule and is made up of a supporting layer and that is used for strengthening tubule be responsible for the damming high molecular polymerization layer of foreign matter at least.

Also disclose a kind of low-pressure filter device, be used for filtering former water, it is characterized in that this low press filtering device comprises:

One oval body, its both ends open also defines a hollow form accommodation space, and this oval body is provided with at least one water purification mouth;

One water inlet lid is located at this oval body one end;

One waste water flap body is located at this oval body end in addition;

One drainage unit is located in this hollow form accommodation space, and this drainage unit comprises:

Many the hollow form composite membrane of being located in this accommodation space filters tubule.

Pass through said structure, the utility model utilizes the hollow form filter material to reach low (bearing) press filtration device of low filtration resistance and high permeable amount, and then reach energy-conservation purpose, and the drainage unit is provided with at least one back washing water inlet, being used for back washing hollow form composite membrane specially filters tubule, prevent that composite membrane from filtering the tubule tube wall and forming the intractable fouling and reduce water flux density, wherein this back washing water inlet also can with this body on the water purification mouth share; Hollow form composite membrane of the present utility model filter tubule mainly with pressure as filtering power, its tube wall is made of a plurality of holes of tool, and these hole pore sizes are decided on required separative efficiency, its filtering accuracy is 0.1 micron～1 nanometer, can effectively divide dried up in big one's share of expenses for a joint undertaking, particulate, colloid, organic matter, algae, virus, heavy metal, bacterium, chemical Toxic, one or two trivalent ions, small organic molecule, this filtrations tubule have filtering accuracy height, the filtered water water yield big, clean advantage such as easy, area occupied.

Description of drawings

Fig. 1 is columned filter membrane schematic diagram for curling.

Fig. 2 is the structural representation of the utility model low-pressure filter apparatus structure.

Fig. 3 is the three-decker generalized section that the hollow form composite membrane of low-pressure filter apparatus structure of the present utility model and device thereof filters tubule.

Fig. 4 is low-pressure filter device schematic diagram of the present utility model.

The specific embodiment

According to above-mentioned purpose, lift preferred embodiment now and cooperate graphic technological means and the effect thereof that the utility model adopts that be illustrated.

See also Fig. 2, Fig. 2 is the structural representation of low-pressure filter structure of the present utility model.

As shown in the figure, the utility model provides a kind of low-pressure filter structure, and this structure comprises at least: a filter body 20 and a plurality of hollow form composite membrane filter tubule 31; Wherein this hollow form composite membrane filters tubule 31 and is located at this filter body 20 inside, and it is used for filtering the pollutant (as: bacterium, heavy metal, chemical Toxic, particle matter) that dams; This filter body 20 is the oval body 21 of a hollow form, this oval body 21 has water inlet 211 at least, wastewater outlet 212 and at least one pure water inlet 213, this water inlet 211 and wastewater outlet 212 be divided into the oval body 21 of hollow form on, the lower end, this pure water inlet 213 is located at the side any place of oval body 21, the utility model is mainly improved and is: these hollow form composite membranes filter tubule 31 and are located at each other in the oval body 21 of this hollow form bunchy, itself and this water inlet 211 and wastewater outlet 212 are positioned at same outrigger shaft to, and the water inlet 211 of the oval body 21 of this hollow form, wastewater outlet 212 corresponding these respectively filters 31 of tubules, hollow end 311 places of tail; When entering water inlet 211, former water W1 do not enter the hollow end 311 that these composite membranes filter tubule 31 with almost having filtration resistance, after these filter tubule 31 tube walls and filter this former water W1 that dams and divide into water purification W2 and waste water W3, flowed out by wastewater outlet 212 and pure water inlet 213 respectively.

Fig. 3 is that the hollow form composite membrane of low-pressure energy-saving filtration device structure of the present utility model and device thereof filters the tubule structural representation.

Hollow form composite membrane described in the utility model filter tubule 31 mainly with pressure as filtering power, generally speaking, filter power and just depend on the hole size (not shown) of these tubule 31 tube walls and the number of plies that each hollow form composite membrane filters tubule 31, these filtering accuracy minimums of filtering tubule 31 can be 1 nanometer, can be used to branch dried up in big one's share of expenses for a joint undertaking, particulate, colloid, organic matter, algae, virus, heavy metal, the chemistry Toxic, one divalent ion, desalting processing, and this hollow form composite membrane filters tubule 31 can be according to required separative efficiency and mode, select to adopt by two layers or three layers composite membrane that constitutes and filter tubule, if during microfiltration, it is two layers that this composite membrane filters tubule 31, be respectively supporting layer 312 and the high molecular polymerization layer 313 of gaining in strength from inside to outside, if when thoroughly contrary or counter-infiltration, when this composite membrane filtration tubule 31 is three layers, be respectively the supporting layer 312 of gaining in strength from inside to outside, high molecular polymerization layer 313 and feltwork sheath 314 (as shown in Figure 3).

See also Fig. 4, Fig. 4 is low-pressure energy-saving filter for installation schematic diagram of the present utility model.

As shown in Figure 4, the utility model provides a kind of low-pressure filter device, filters former water effectively in the low pressure mode, and this low press filtering device comprises: oval body 21, water inlet lid 40, waste water flap body 50 and drainage unit 60; Wherein this water inlet lid 40 and waste water flap body 50 are divided into oval body 21 upper and lower ends, and this drainage unit 60 is located in this oval body 21, and corresponding with this water inlet lid 40 and waste water flap body 50; In more detail: these oval body 21 both ends open also define a hollow accommodation space 210, oval body 21 is provided with at least one water purification mouth 213, on this oval body 21, the lower end is arranged with the waste water flap body 50 that the water inlet of former water W1 lid 40 is provided and discharges for waste water, wherein set drainage unit 60, oval body 21 inside are used for filtering and hold back former water W1 and divide into waste water and water purification, this drainage unit 60 comprises: many hollow form composite membranes of being located at accommodation space 210 filter tubule 62, that is, these hollow composite membranes filter tubule 62 and fill up this accommodation space 210 each other bunchy, when former water W1 enters water inlet lid 40, directly entering drainage unit 60 these hollow composite membranes filters in the tubule 62, filter interception area through these tube walls that filter tubule 62 and be divided into water purification W2 and waste water W3, this waste water W3 is flowed out by waste water flap body 50, and this water purification W2 is discharged smoothly by oval body 21 water purification mouths 213.

Advantage of the present utility model is: utilize the hollow form composite membrane to filter tubule and reach low filtration resistance and high permeable dose-effect fruit, by the utility model structure and device thereof during as microfiltration, minimum only need-0.02Map pressure, if during as infiltration or reverse osmosis, to the low 0.1Map pressure that only needs.

The utility model above-mentioned preferred embodiment of mat is described in more detail, only the utility model is not limited to the above-mentioned embodiment that gives an example, all in the technological thought scope that the utility model discloses, these structures are done various variations and modify still to belong to scope of the present utility model.

Claims

1. a low-pressure filter structure is characterized in that this structure comprises: a filtration body and a plurality of hollow form composite membrane filtration tubule; This filtration tubule is located in the filter body; This filtration body is the oval body of a hollow form, this oval body has water inlet, wastewater outlet and pure water inlet at least, it is characterized in that: these a plurality of hollow form composite membranes filter the tubule bunchy and are located in the oval body of this hollow form, these a plurality of hollow elongated tubular and this water inlet and wastewater outlet be positioned at same outrigger shaft to, the water inlet of the oval body of this hollow form and wastewater outlet are respectively to head and tail hollow end that should a plurality of filtration tubules.

2. according to the described low-pressure filter structure of claim 1, it is characterized in that this hollow form composite membrane filters the hole of a plurality of pore sizes decision of the tube wall tool filtering accuracy of tubule.

3. according to the described low-pressure filter structure of claim 1, it is characterized in that this hollow form composite membrane filters tubule and is made up of a supporting layer and that is used for strengthening tubule be responsible for damming high molecular polymerization layer and the feltwork sheath of foreign matter at least.

4. according to the described low-pressure filter structure of claim 1, it is characterized in that this hollow form composite membrane filters tubule and is made up of a supporting layer and that is used for strengthening tubule be responsible for the damming high molecular polymerization layer of foreign matter at least.

5. a low-pressure filter device is used for filtering former water, it is characterized in that, this low press filtering device comprises:

One water inlet lid is located at this oval body one end;

One waste water flap body is located at this oval body end in addition;

6. according to the described low-pressure filter device of claim 5, it is characterized in that this hollow form composite membrane filters the hole of a plurality of pore sizes decision of the tube wall tool filtering accuracy of tubule.

7. according to the described low-pressure filter device of claim 5, it is characterized in that this hollow form composite membrane filters tubule and is made up of a supporting layer and that is used for strengthening tubule be responsible for damming high molecular polymerization layer and the feltwork sheath of foreign matter at least.

8. according to the described low-pressure filter device of claim 5, it is characterized in that this hollow form composite membrane filters tubule and is made up of a supporting layer and that is used for strengthening tubule be responsible for the damming high molecular polymerization layer of foreign matter at least.