CN203284262U - Filter unit - Google Patents
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- CN203284262U CN203284262U CN2013202506095U CN201320250609U CN203284262U CN 203284262 U CN203284262 U CN 203284262U CN 2013202506095 U CN2013202506095 U CN 2013202506095U CN 201320250609 U CN201320250609 U CN 201320250609U CN 203284262 U CN203284262 U CN 203284262U
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- filter screen
- filtering membrane
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Abstract
The utility model provides a filter unit which comprises a planar rigid water retaining sheet (1), a first filter screen (2), a first filter membrane (7), first and second water fenders (6 and 9) and a first penetration hole (5), wherein the first filter screen (2) and the first filter membrane (7) are arranged on one side of the planar rigid water retaining sheet in sequence; the first and second water fenders (6 and 9) are stacked on the first filter membrane; the second water fender surrounds the first water fender; the first penetration hole (5) is located in the area surrounded by the first water fender and penetrates through the planar rigid water retaining sheet, the first filter screen and the first filter membrane in sequence; a water receiving port for receiving water to be filtered is formed by the first and second water fenders and the surface area, between the first and second water fenders, of the filter membrane; the water receiving port is communicated with the first penetration hole through the first filter membrane and first filter screen to form a water-tight passage in a pressure environment, and the water-tight passage takes the water receiving port as a water inlet and the first penetration hole as a water outlet; gaps among the components forming the water-tight passage are filled with adhesive. The filter unit is free from leakage in the using process.
Description
Technical field
The utility model relates to a kind of filtering unit.
Background technology
In prior art, filter for example seawater, brackish water and wait for that the routine filtration device of filtered water is the filtration unit with rolled film.Take close-stacked together filtering membrane and filter screen as an independent filtering unit, such filtering unit is wound on the water gathering tube with radial hole, these filtering units that are wound on water gathering tube are exactly rolled film, and close contact between the filtering unit of every adjacent two coilings.
When work, water to be filtered enters from an axial end of rolled film with certain pressure, the water that enters rolled film, along the radial flow of rolled film to water gathering tube, is namely filtered along this radial direction water layer by layer, and the water after filtration enters in water gathering tube and flows out from adopting the mouth of a river through the radial hole of water gathering tube.
But there is following defect in above-mentioned filtration unit with rolled film:
(1) because water to be filtered enters from an axial end of rolled film, the residue when this causes filtering not only remains on filtering membrane and also remains on filter screen, thus easy cleaning not;
(2) directly contact each other too closely due to the filtering unit of every adjacent two coilings in rolled film again, namely, in every adjacent two filtering units, close contact between the filtering membrane of a filtering unit and the filter screen of another filtering unit, remain in the dirt easy cleaning and clean unclean more not in rolled film when this causes filtering.
To sum up, existing rolled film due to easy cleaning and also clean unclean, thereby make the rolled film filter effect bad, and clean for a long time sordid dirt and can produce green paint, also can make rolled film short work-ing life.
The utility model content
For the problem that exists in correlation technique, the purpose of this utility model is to provide a kind of filtering unit, in use can not produce any leakage.
for achieving the above object,, according to an aspect of the present utility model, provide a kind of filtering unit, comprising: plane rigidity block water plate and the first filter screen that stacks gradually on a side of described plane rigidity block water plate and the first filtering membrane, the first and second retaining rings, all be layered on described the first filtering membrane, and described the second retaining ring surrounds described the first retaining ring, and first the perforation, in the enclosing region of described the first retaining ring, run through successively described plane rigidity block water plate, the first filter screen and the first filtering membrane, wherein, described the first and second retaining rings, and the surf zone between described the first and second retaining rings of described the first filtering membrane, form together the water inlet of accepting water to be filtered, wherein, described water inlet communicates with described the first perforation through described the first filtering membrane and the first filter screen successively, formation is the water-lute passage take described the first perforation as water outlet take described water inlet as water inlet, and fill by caking agent in the gap that forms between each member of described water-lute passage.
Preferably, in the position corresponding to described the second retaining ring, the gap between the each several part of described plane rigidity block water plate, the first filter screen, the first filtering membrane and the second retaining ring, all fill up with caking agent; And the gap between described the first filtering membrane and the first retaining ring is all filled up with caking agent.
Preferably, described the first filter screen exposes to communicate with described the first perforation from the internal perisporium of described the first perforation.
Preferably, filtering unit also comprises: a plurality of sheathed sleeved the second perforation, in all second perforation zones between described the first and second retaining rings, run through successively described plane rigidity block water plate, the first filter screen and the first filtering membrane, wherein, any gap between described the first filter screen and the first filtering membrane and described sleeve is all filled up with caking agent.
Preferably, an axial end of each described sleeve is configured to be pressed in the first flanging on described the first filtering membrane, another axial end is configured to be pressed in the second flanging on described block water plate, wherein, described the first retaining ring exceeds the height of described the first filtering membrane and the height that described the second retaining ring exceeds described the first filtering membrane, all greater than described the first flanging, exceeds the height of described the first filtering membrane.
Preferably, described the first filter screen is double-layer structure, formed by the first layer filter screen stacked together and second layer filter screen, the mesh size of described the first layer filter screen is greater than the mesh size of described second layer filter screen, wherein, described the first layer filter mesh layer is stacked on described block water plate, and described the first filtering membrane is layered on described second layer filter screen.
Preferably, described rigidity block water plate is rigid disk, and described the first and second retaining rings are stereosphere.
On the other hand, the utility model also provides a kind of filtering unit, comprise: plane rigidity block water plate, stack gradually at the first filter screen on the first side of described block water plate and the first filtering membrane and stack gradually the second filter screen and the second filtering membrane on the second side at described block water plate, described the first side is the relative both sides of described block water plate with described the second side; The first and second retaining rings, all be layered on described the first filtering membrane, and described the second retaining ring surrounds described the first retaining ring; And first perforation, be positioned at the enclosing region of described the first retaining ring, start until run through the second filtering membrane from running through described the first filtering membrane; Wherein, the first surface zone between the first and second retaining rings of described the first and second retaining rings and the first filtering membrane forms the first water inlet of accepting water to be filtered together, and the zone of the second surface corresponding to described first surface zone of described the second filtering membrane forms the second water inlet of accepting water to be filtered; Wherein, described the first water inlet communicates with described the first perforation through described the first filtering membrane and the first filter screen successively, and described the second water inlet communicates with described the first perforation through described the second filtering membrane and the second filter screen successively, to form the water-lute passage take described the first perforation as water outlet take described the first and second water inlets as water inlet, fill by caking agent in the gap that forms between each member of described water-lute passage.
Preferably, in the position corresponding to described the second retaining ring, the gap between the each several part of described plane rigidity block water plate, the first filter screen, the second filter screen, the first filtering membrane, the second filtering membrane and described the second retaining ring, all fill up with caking agent; Gap between the first filtering membrane and the first retaining ring is filled up with caking agent.
Preferably, described the first filter screen and the second filter screen, expose to communicate with described the first perforation from the internal perisporium of described the first perforation, thus the output of the clear water after filtering.
Preferably, filtering unit also comprises: a plurality of sheathed sleeved the second perforation, all second perforation are between described the first and second retaining rings in zone, and run through successively described the first filtering membrane, the first filter screen, planar rigidity block water plate, the second filter screen and the second filtering membrane, wherein, between described sleeve and described the first and second filter screens, and the gap between described sleeve and described the first and second filtering membranes is all filled up with caking agent.
Preferably, an axial end of each described sleeve is configured to be pressed in the first flanging on described the first filtering membrane, another axial end is configured to be pressed in the second flanging on described the second filtering membrane, wherein, described the first retaining ring exceeds the height of described the first filtering membrane and the height that described the second retaining ring exceeds described the first filtering membrane, all greater than described the first flanging, exceeds the height of described the first filtering membrane.
Preferably, described the first filter screen and the second filter screen are double-layer structure, form by the first layer filter screen and second layer filter screen along vertically away from the direction of described block water plate, stacking gradually together, wherein, the mesh size of described the first layer filter screen is greater than the mesh size of described second layer filter screen.
Preferably, described rigidity block water plate is rigid disk, and described the first and second retaining rings are stereosphere.Material can be all such as plastics or steelwork etc.
Than prior art, the beneficial effects of the utility model are:
1. when using filtering unit, the leakage in the filtration procedure that produces for fear of the pressure due to object to be filtered, need to press together each member in filtering unit., even but each member presses together, at the connecting position place of each member, still inevitably produce and reveal.When if the connecting position place between each member adopts rubber seal, when very difficult each rubber pad of control is extruded, deflection is consistent, this just makes each member connecting position place, produce gap at the connecting position place due to the micropore of each member surface in contact (for example micropore on the micropore of retaining ring contact surface, planar rigidity block water plate contact surface, filtering net and filter openings other member contact parts, filtering membrane and filter openings other member contact position places), thereby form leak point.
For this reason, fill by caking agent in the utility model gap that will form between each member of water-lute passage.At this moment, at the connecting position place of each member, the micropore of each member surface in contact also can be sealed owing to being filled, thereby the utility model filtering unit in use can not produce any leakage.In other words, in the use procedure of the utility model filtering unit, the water to be filtered of certain pressure (for example over 20 kilograms/every square centimeter) carries out in the water-lute passage filtration and filter after lead to the process of adopting the mouth of a river be all carry out under the pressure water sealed environment and any leakage can not occur.
2. for comprising plane rigidity block water plate and stacking gradually the first filter screen on block water plate and the situation of the filtering unit of the first filtering membrane:
(1) water inlet of accepting water to be filtered of the surf zone formation filtering unit between the first and second retaining rings due to the first and second retaining rings and the first filtering membrane, and water inlet communicates with the first perforation through the first filtering membrane and the first filter screen, therefore, during filtration, residual dirt can only remain on the surface of the first filtering membrane, and can't remain on the first filter screen, therefore be convenient to clean dirt.
(2) existence due to the first and second retaining rings makes described water inlet have certain degree of depth, and like this, the dirt that just for flushing, remains on the first filter membrane surface provides enough flushing spaces, further makes dirt be more prone to clean.
(3) on the basis of above-mentioned (2), even a plurality of such filtering units are stacked up from top to bottom successively, because each filtering unit will clean dirt on the first filtering membrane, therefore in two filtering units of every adjacent stack (for example the first and second filtering units), be spaced apart from each other between the rigidity block water plate of the second filtering unit and the first filtering membrane of the first filtering unit rather than mutually directly contact, thereby still can clean at an easy rate the dirt that remains on each first filtering membrane.
(4) be made as double-layer structure when the first filter screen, and this double-layer structure reduces water resistance while the first layer filter screen and second layer filter screen, consisting of, increase flux.
For comprising plane rigidity block water plate, stack gradually the first filter screen and the first filtering membrane on block water plate the first side and stack gradually situation at the filtering unit of the second filter screen of block water plate the second side and the second filtering membrane:
(1) no matter water to be filtered is to enter from the first surface zone between the first and second retaining rings of the first filtering membrane, or the second surface location corresponding with above-mentioned first surface zone from the second filtering membrane enters, during filtration, residual dirt all remains on the surface of the first filtering membrane or remains on the surface of the second filtering membrane, and can't remain on the first filter screen and the second filter screen, therefore be convenient to clean dirt.
(2) existence due to the first and second retaining rings makes water inlet have certain degree of depth, and like this, the residual soil that just for flushing, remains on the first filter membrane surface provides enough flushing spaces, further makes dirt be more prone to clean.
(3) the first filter screen and the first filtering membrane have been stacked gradually due to filtering unit in the first side of rigidity block water plate, the second side at the rigidity block water plate has stacked gradually the second filter screen and the second filtering membrane, thereby water to be filtered can filter respectively from the first filtering membrane and the second filtering membrane respectively, and this makes the filter ability of filtering unit increase.
(4) even, a plurality of such filtering units are stacked up from top to bottom successively, because each filtering unit will clean dirt on the first filtering membrane, , therefore in two filtering units of every adjacent stack (for example the first filtering unit is superimposed upon on the second filtering unit), the first filtering membrane of the second filtering unit is spaced apart from each other between the second filtering membrane of the zone between its first and second retaining ring and the first filtering unit, rather than directly contact mutually, thereby can clean at an easy rate on the second filter membrane surface that remains in the first filtering unit and remain in the dirt on the first filter membrane surface of the first filtering unit.
(5) be made as double-layer structure when the first filter screen and the second filter screen, and this double-layer structure reduces water resistance while by the first layer filter screen and second layer filter screen, forming, increase flux.
Description of drawings
Fig. 1 is the sectional view of the first embodiment of the utility model filtering unit;
Fig. 2 is the sectional view of the second embodiment of the utility model filtering unit;
Fig. 3 is the sectional view of the 3rd embodiment of the utility model filtering unit;
Fig. 4 is the vertical view of Fig. 3;
Fig. 5 is three examples that filtering unit is superimposed for example.
Embodiment
Below referring to accompanying drawing, the utility model embodiment is described.
In the utility model filtering unit, form the gap at each member connecting position place of water-lute passage, all by caking agent, filled.When filtering unit in use its each member is extruded, can there be any leak point in this water-lute passage, thereby has formed the water-lute passage under the pressure environment.This make water to be filtered carries out in the water-lute passage filtration and filter after send into the process of adopting the mouth of a river and all any leakage can not occur.Three embodiment of the utility model filtering unit are described below, but should be appreciated that, the utility model is not limited to this three embodiment, and these embodiment are only the purposes of example.
[the first embodiment]
Shown in Figure 1, in this embodiment, filtering unit comprises: the plane rigidity block water plate 1 that stacks gradually from top to bottom, the first filter screen 2 and the first filtering membrane 7; Also comprise the first perforation 5, this first perforation 5 is water outlet, the hole of namely as the clear water after acquisition filter, using (therefore also can be referred to as to adopt the mouth of a river); The first retaining ring 6 and the second retaining ring 9, these two retaining rings all are layered on the first filtering membrane 7, and the first retaining ring 6 is in the enclosing region of the second retaining ring 9; And first perforation 5 run through successively from top to bottom plane rigidity block water plate 1, the first filter screen 2 and the first filtering membrane 7, and be positioned at the enclosing region of the first retaining ring 6.In the present embodiment, filtering unit has to accept the water inlet of water to be filtered, and this water inlet is exactly that the zone between the first and second retaining rings 6,9 of the first retaining ring 6, the second retaining ring 9 and the first filtering membrane 7 forms together.The water receiving zone communicates with the first perforation 5 through the first filtering membrane and then through the first filter screen, therefore,, take water inlet as water-in,, take the first perforation 5 as water outlet, forms the water-lute passage.
In use, each member that forms the water-lute passage is pressed together the utility model filtering unit.Because the gap at this each member connecting position place is filled by caking agent, connecting position place at each member, even the micropore of each member surface in contact (for example micropore on the micropore of retaining ring contact surface, planar rigidity block water plate contact surface, filtering net and filter openings other member contact parts, filtering membrane and filter openings other member contact position places) also can be filled and sealed due to caking agent, thereby the utility model filtering unit in use can not produce any leakage.In other words, the water to be filtered of certain pressure in this water-lute passage filtration and be filtered after clear water enter the first perforation 5 be all carry out under the pressure water sealed environment and any leakage do not occur.Preferably, the first filter screen 2 can be set to for example from the internal perisporium of the first perforation 5, expose, and the clear water after filtering for the first filtering membrane flows to the first perforation through the first filter screen 2.
The water-lute passage that the following detailed description the utility model is above-mentioned.In use, in the utility model filtering unit, each member presses together, this extruding can have various ways, for example can connect this filtering unit is squeezed on a top board by means of screw rod, this top board compresses and contacts and offer the hole identical with water inlet with the first and second retaining rings.Strong brine (for example this pressure can be 20 kilograms of pressure more than every square centimeter) take water to be filtered as the certain pressure such as containing sulfate, nitrate, carbonate etc. is as example, after water to be filtered enters the water-lute passage from water inlet, this moment, the first lip-deep water to be filtered of filtering membrane 7 only had following unique flowing-path: enter the first filter screen 2 after the first filtering membrane 7 filters, then flow into take the first filter screen 2 as passage in the first perforation 5, to realize adopting water (namely obtaining the clear water after the first filtering membrane 7 filters) from the first perforation 5.In order to prevent that water to be filtered from flowing to the filtration procedure of water outlet any type of leakage occurs at the water inlet from the water-lute passage, in this embodiment, in the position corresponding to the second retaining ring 9, gap between plane rigidity block water plate 1, the first filter screen 2, the first filtering membrane 7 and the second retaining ring 9 each several parts, all fill up with caking agent; And first gap between filtering membrane 7 and the first retaining ring 6 all with caking agent, fill up.
Obviously, residual dirt can only remain on the surface of the first filtering membrane 7 when filtering, and can't remain on the first filter screen 2, therefore is convenient to clean dirt.In other words, in this embodiment, water to be filtered must first just can enter the first filter screen 2 after the first filtering membrane 7 filters, and can not walk around the first filtering membrane 7, directly enter the first filter screen 2.
Further, rigidity block water plate 1 is in order to make this filtering unit have rigidity, and the rigidity that has guarantees that a plurality of such filtering units can use from top to bottom with stacking gradually.As a kind of optimal way, rigidity block water plate 1 can be rigid disk etc.
In addition, aforementioned the first filter screen 2 can be single layer structure (example is as shown in Figure 1), but can be also multilayered structure.For example, the first filter screen 2 can be set to double-layer structure, the first layer filter screen stacked together and second layer filter screen, consists of.Particularly, the first layer filter mesh layer is stacked on block water plate 1, and the first filtering membrane 7 is layered on second layer filter screen, and the mesh size of the first layer filter screen is greater than the mesh size of second layer filter screen.In brief, the first layer filter screen can be referred to as coarse net, second layer filter screen can be referred to as fine-structure mesh.Adopt the advantage of the first layer filter screen and second layer filter screen to be, when even the pressure that puts on filtering membrane when water to be filtered causes filtering membrane to cave in to stop up the first layer filter screen, second layer filter screen can be because the depression of filtering membrane is stopped up, thereby still can provide unobstructed passage.
Obviously, in Fig. 1, rigidity block water plate 1 can be set to have the first wafer architecture of the first diameter, the first filter screen 2 and the first filtering membrane 7 all can be set to have the second wafer architecture of Second bobbin diameter, wherein the first diameter is greater than Second bobbin diameter, and is provided with a plurality of fixed orificess 3 of arranging around the first filter screen 2 and the first filtering membrane 7 on rigidity block water plate 1.
Again, rigidity block water plate 1 has the first relative side and the second side, can think that a side that is laminated with the first filter screen 2 and the second filtering membrane 7 of rigidity block water plate 1 is the first above-mentioned side.At this moment, can carry out improvement as described below to the first embodiment: namely stack gradually the second filter screen and the second filtering membrane on the second side of rigidity block water plate 1, and the structure of the structure of the second filter screen and the first filter screen, the second filtering membrane and the second filtering membrane can be identical.
[the second embodiment]
Referring to Fig. 2, the second embodiment of the utility model filtering unit is described, this embodiment is the improvement of carrying out on the first embodiment basis, in Fig. 2, the component identical with Fig. 1 are used label in Fig. 1, herein repeating label no longer.
The second embodiment is than the first embodiment, and difference is: filtering unit also is included in a plurality of the second perforation 17 that arrange in zone between the first and second retaining rings 6,9, is arranged with sleeve 10 in each second perforation 17.Particularly, above-mentioned the second perforation 17 runs through the first filtering membrane 7, the first filter screen 2 and plane rigidity block water plate 1 successively.
Compare with the first embodiment, except the position corresponding to the second retaining ring 9, outside in plane rigidity block water plate 1, the first filter screen 2, the second filter screen 11, the first filtering membrane 7, the second filtering membrane 12 and the second retaining ring 9, the gap at any connecting position place was all filled up with caking agent, the gap between the first filtering membrane 7 and the first retaining ring 6 was also filled up with caking agent.The present embodiment has still formed the water-lute passage similar to embodiment 1, just be provided with the second perforation that is arranged with sleeve 10 more, guide with the water to be filtered in the water-lute passage, for example can be directed in next same filtering unit and proceed to process.
In use, in the present embodiment filtering unit, each member presses together, because the gap at each member connecting position place is filled by caking agent, connecting position place at each member, even the micropore of each member surface in contact also can be sealed due to the caking agent filling, thereby the utility model filtering unit in use can not produce any leakage.Thereby water to be filtered in the water-lute passage filtration and filter after send into that to adopt the mouth of a river be all to carry out and any leakage can not occur under the pressure water sealed environment.
Similar to the first embodiment, in a second embodiment, water to be filtered can only just can enter in the first filter screen 2 after the first filtering membrane 7 filters, and can directly enter the first filter screen through the filtration of the first filtering membrane 7.So during filtration, residual soil can only be present on the first filtering membrane 7 and can not be present in the first filter screen 2; , as for the part of by the first filtering membrane 7, not filtered in water to be filtered, can flow out through sleeve 10 due to the effect of hydraulic pressure.Both can drain as required, also can flow to another filtering unit from the water of sleeve 10 outflows proceeds to filter.Wherein said another filtering unit can be identical with this second above-mentioned filtering unit in implementing.
And, due to the first and second retaining rings 6,9 existence, the water inlet of filtering unit has certain degree of depth, and this degree of depth is exactly the height (under ideal situation, the height that these two retaining rings exceed the first filtering membrane is identical) that the first and second retaining rings exceed the first filtering membrane 7.Like this, just for flushing remains in the first lip-deep dirt of filtering membrane 7, provide enough flushing spaces, further made dirt be more prone to clean.
Also can find out from Fig. 2, sleeve can be fixed on as follows in the second perforation 17.Particularly, an axial end of each sleeve 10 is configured to be pressed on the first flanging on the first filtering membrane 7, another axial end of each sleeve 10 is configured to be pressed on the second flanging on plane rigidity block water plate 1.And the first retaining ring 6 exceeds the height of the first filtering membrane 7 and the height that the second retaining ring 9 exceeds the first filtering membrane 7, all should exceed greater than the first flanging the height of the first filtering membrane 7.
When needs press together the filtering unit of a plurality of as the second embodiment use with superposeing up and down, connect all filtering units are squeezed between the clamping plate of two of up and down (for example screw rod can pass the rigidity block water plate in filtering unit) by for example screw rod, wherein in two filtering units in every adjacent up and down, the first and second retaining rings of lower filtering unit are squeezed in a side that is not provided with retaining ring of filtering unit.So, due to sleeved the second perforation of being with in each filtering unit, in filtering unit, the head and the tail connection successively of water-lute passage, flow to another filtering unit for water to be filtered from a filtering unit.
Than the situation very close to each other that is in direct contact with one another between filtering unit in the rolled film of prior art, in every adjacent two filtering units of the utility model between below filtering unit the first filtering membrane and top filtering unit rigidity block water plate, the first and second retaining rings by the below filtering unit are spaced apart from each other rather than directly contact mutually, therefore still can clean at an easy rate and remain in the dirt on the first filtering membrane in each filtering unit.
In the second embodiment, the first filter screen can be identical with the first embodiment, can be both that single layer structure can be also multilayered structure.
It may be noted that in the second embodiment other structure and compositions of not describing in detail, identical with aforementioned description in the first embodiment, repeat no more.
[the 3rd embodiment]
Referring to Fig. 3 and Fig. 4, the 3rd embodiment of the utility model filtering unit is described.This embodiment is the improvement of carrying out on the second embodiment basis, represents identical component with Fig. 1 same numeral in Fig. 3.
When the side that stacks gradually the first filter screen 2 and the first filtering membrane 7 with plane rigidity block water plate 1 is defined as the first side, when the opposite side relative with the first side of plane rigidity block water plate 1 is defined as the second side, the 3rd embodiment is than the difference of the second embodiment: the 3rd embodiment has also stacked gradually the second filter screen 11 and the second filtering membrane 12 in the second side of block water plate 1, that is, in the 3rd embodiment this moment, filtering unit also comprises the second filter screen 11 and the second filtering membrane 12.
For with the second embodiment in the second perforation 17 distinguish, with the second perforation in label 17 ' expression the 3rd embodiment.For with the second embodiment in the first perforation 5 differentiate, the first perforation that in this embodiment, filtering unit comprises indicates with 5 '.For with the second embodiment, distinguishing, each second perforation 17 ' middle sleeve is denoted as 10 '.Identical with the second embodiment, in the 3rd embodiment, filtering unit also comprises first perforation the 5 ' and second perforation 17 ', and it runs through the first filtering membrane 7, the first filter screen 2, plane rigidity block water plate 1, the second filter screen 11 and the second filtering membrane 12 from top to bottom successively.
the first retaining ring, the second retaining ring, and the first surface zone between the first and second retaining rings of the first filtering membrane 7 forms the first water inlet of accepting water to be filtered together, second surface corresponding to the described first surface zone zone of the second filtering membrane 12 forms the second water inlet of accepting water to be filtered, here said " correspondence " refers to: take plane rigidity block water plate 1 as the plane of symmetry, be the second surface zone of mirror image on the second filtering membrane 12 with the first surface zone of the first filtering membrane 7, namely, the second surface zone is take plane rigidity block water plate 1 as the plane of symmetry, be mirror image with the first surface zone.Obviously, the second water inlet also just take plane rigidity block water plate 1 as the plane of symmetry and the first water inlet be mirror image.
In the filtering unit of the 3rd embodiment, then the first water inlet communicates with the first perforation 5 ' through the first filter screen 2 through the first filtering membrane 7 again, then the second water inlet communicates with described the first perforation 5 ' through the second filter screen 11 through the second filtering membrane 12 again, to form the water-lute passage take described the first perforation as water outlet take the first and second water inlets as water inlet.Preferably, the first and second filter screens 2,11 all expose and can realize communicating with the first perforation 5 ' from the first perforation internal perisporium of 5 '.In the position corresponding to the second retaining ring 9, in plane rigidity block water plate 1, the first filter screen 2, the second filter screen 11, the first filtering membrane 7, the second filtering membrane 12 and the second retaining ring 9, all gaps at each connecting position place are all filled up with caking agent; Gap between the first filtering membrane 7 and the first retaining ring 6 is filled up with caking agent.When the filtering unit of this embodiment also comprises while being provided with a plurality of the second perforation 17 ' that is arranged with sleeve 10 ', all second perforation 17 ' between the first and second retaining rings 6,9 in zone, and run through the first filtering membrane 7, the first filter screen 2, planar rigidity block water plate 1, the second filter screen 11 and the second filtering membrane 12 successively.And between sleeve 10 ' and the first and second filter screens 2,11, and the gap between sleeve 10 ' and the first and second filtering membranes 7,12 is all filled up with caking agent.
In use, in the present embodiment filtering unit, each member presses together, because the gap at each member connecting position place is filled by caking agent, connecting position place at each member, even the micropore of each member surface in contact also can be sealed due to the caking agent filling, thereby the utility model filtering unit in use can not produce any leakage.Thereby water to be filtered in the water-lute passage filtration and filter after send into that to adopt the mouth of a river be all to carry out and any leakage can not occur under the pressure water sealed environment.
In the filtering unit of the 3rd embodiment, be made as respectively the situation of flange for 10 ' two axial ends of each sleeve, an axial end of sleeve 10 ' is configured to be pressed in the first flanging on the first filtering membrane 7, and another axial end of sleeve 10 ' is configured to be pressed in the second flanging on the second filtering membrane 12.
Similar to the first embodiment, in the 3rd embodiment, the first filter screen and the second filter screen can be both that single layer structure can be also multilayered structure.
All the other parts of not describing in the 3rd embodiment, identical with the description in above-mentioned the second embodiment, repeat no more.
Referring to Fig. 5, show the filtering unit of a plurality of (for example 3) the 3rd embodiment is pushed the situation that is superimposed successively, the mode of extruding can be such as adopting screw rod to connect these filtering units are squeezed between upper lower plate etc.Distinguish different filtering units with A, B, C in Fig. 5.Wherein A and B structure are identical, and biperforate quantity is two, and C-structure only offers one second perforation.And, the biperforate position that is right against filtering unit A and B of filtering unit C be the sealing, do not offer second the perforation.
Fig. 5 shows the flow direction of the part of water to be filtered with arrow.Particularly, water to be filtered injects along arrow E with certain pressure.Wherein part unit A, B, C filtration after filtration, another part directly flows out to carry out the treatment process of back without any filtration along arrow F.Particularly, have three filtration behaviors, filter for the first time and be: water to be filtered is after the first and second filtering membranes of unit A filter after filtration, and the first filter screen of unit A and the second filter screen flow into and adopt aquaporin 201 from the first perforation of filtering unit A after filtration; Filter for the second time and be: water to be filtered is after the first and second filtering membranes of unit B filter after filtration, and the first filter screen of unit B and the second filter screen flow into and adopt aquaporin 201 from the first perforation of filtering unit B after filtration; Filter for the third time and be: water to be filtered is after the first filtering membrane of unit C filters after filtration, and the first filter screen of unit C flows into and adopts aquaporin 201 from the first perforation of filtering unit C after filtration.The first retaining ring 6 of each filtering unit and the first perforation form together adopts moisture section passage, and when these three filtering units such as Fig. 5 stack pressed together, it was adopted separately moisture section channel connection and has formed and adopt aquaporin 201
Also can find out from Fig. 5: the filtering membrane of below in filtering unit A, with the filtering membrane of top in filtering unit B each other in the face of and because the existence of the first and second retaining rings in filtering unit B is spaced apart from each other.In brief, be spaced apart from each other between the filtering membrane of facing each other between filtering unit A and filtering unit B rather than directly contact.
The aperture of the filtering membrane described in the utility model, can be for example the film that reverse osmosis membrane and nanofiltration membrane can be filtered molecule (for example filter salts molecule), can be also filtering particle and do not filter the film of molecule.The utility model midplane shape rigidity block water plate, can prevent that filtering unit is because the effect of hydraulic pressure in filtration procedure is subsided.
Take in above-mentioned the first embodiment referring to the described filtering unit of Fig. 1 as example, filtering membrane adopts the situation of reverse osmosis membrane to carry out test experiments, the specific targets of the water to be filtered before processing are as follows:
Carry out performance test in 800KPa to 3500KPa scope, under each pressure, operation is 5 minutes, monitors respectively under different pressures the specific conductivity of intaking, and produces water conductivity and operating temperature.Test result is as follows:
Be can visually see by above-mentioned test result, the ratio of desalinization of this filtering unit increases in 800～3500KPa scope along with pressure and steadily increases, and wherein when pressure was 3500KPa, ratio of desalinization reached maximum value 99.13%.
The foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, for a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.
Claims (14)
1. a filtering unit, is characterized in that, comprising:
Plane rigidity block water plate (1) and the first filter screen (2) that stacks gradually on a side of described plane rigidity block water plate (1) and the first filtering membrane (7);
The first and second retaining rings (6,9), all be layered on described the first filtering membrane (7), and described the second retaining ring (9) surrounds described the first retaining ring (6); And
The first perforation (5), in the enclosing region of described the first retaining ring (6), run through described plane rigidity block water plate (1), the first filter screen (2) and the first filtering membrane (7) successively,
Wherein, described the first and second retaining rings and described the first filtering membrane (7) be positioned at surf zone between described the first and second retaining rings (6,9), form together the water inlet of accepting water to be filtered,
Wherein, described water inlet communicates with described the first perforation through described the first filtering membrane and the first filter screen successively, formation is take described water inlet as water inlet take described the first perforation as the water-lute passage of water outlet, and fill by caking agent in the gap that forms between each member of described water-lute passage.
2. filtering unit according to claim 1, is characterized in that,
In the position corresponding to described the second retaining ring (9), the gap between the each several part of described plane rigidity block water plate (1), the first filter screen (2), the first filtering membrane (7) and the second retaining ring (9), all fill up with caking agent; And the gap between described the first filtering membrane (7) and the first retaining ring (6) is all filled up with caking agent.
3. filtering unit according to claim 1 and 2, is characterized in that,
Described the first filter screen (2) exposes to communicate with described the first perforation (5) from the internal perisporium of described the first perforation (5).
4. filtering unit according to claim 3, is characterized in that, also comprises:
A plurality of the second perforation (17) that are arranged with sleeve (10), all second perforation (17) are positioned at the zone between described the first and second retaining rings (6,9), run through successively described plane rigidity block water plate (1), the first filter screen (2) and the first filtering membrane (7)
Wherein, any gap between described the first filter screen (2) and the first filtering membrane (7) and described sleeve (10) is all filled up with caking agent.
5. filtering unit according to claim 4, is characterized in that,
An axial end of each described sleeve (10) is configured to be pressed in the first flanging on described the first filtering membrane (7), and another axial end is configured to be pressed in the second flanging on described block water plate (1),
Wherein, described the first retaining ring (6) exceeds the height of described the first filtering membrane (7) and the height that described the second retaining ring (9) exceeds described the first filtering membrane (7), all greater than described the first flanging, exceeds the height of described the first filtering membrane (7).
6. the described filtering unit of any one according to claim 1-2, is characterized in that,
Described the first filter screen (2) is double-layer structure, the first layer filter screen stacked together and second layer filter screen, consists of, and the mesh size of described the first layer filter screen is greater than the mesh size of described second layer filter screen,
Wherein, described the first layer filter mesh layer is stacked on described block water plate (1), and described the first filtering membrane (7) is layered on described second layer filter screen.
7. the described filtering unit of any one according to claim 1-2, is characterized in that,
Described rigidity block water plate (1) is rigid disk, and described the first and second retaining rings (6,9) are stereosphere.
8. a filtering unit, is characterized in that, comprising:
Plane rigidity block water plate (1), stack gradually at the first filter screen (2) on the first side of described block water plate and the first filtering membrane (7) and stack gradually the second filter screen (11) and the second filtering membrane (12) on the second side at described block water plate, described the first side is the relative both sides of described block water plate with described the second side;
The first and second retaining rings (6,9), all be layered on described the first filtering membrane (7), and described the second retaining ring surrounds described the first retaining ring; And
First bores a hole (5 '), is positioned at the enclosing region of described the first retaining ring (6), from running through described the first filtering membrane (7), starts until run through the second filtering membrane (12);
Wherein, the first surface zone between the first and second retaining rings of described the first and second retaining rings and the first filtering membrane (7) forms the first water inlet of accepting water to be filtered together, and the zone of the second surface corresponding to described first surface zone of described the second filtering membrane (12) forms the second water inlet of accepting water to be filtered;
Wherein, described the first water inlet communicates with described the first perforation (5 ') through described the first filtering membrane (7) and the first filter screen (2) successively, and described the second water inlet communicates with described the first perforation (5 ') through described the second filtering membrane (12) and the second filter screen (11) successively, to form the water-lute passage take described the first perforation as water outlet take described the first and second water inlets as water inlet, fill by caking agent in the gap that forms between each member of described water-lute passage.
9. filtering unit according to claim 8, is characterized in that,
In the position corresponding to described the second retaining ring (9), gap between the each several part of described plane rigidity block water plate (1), the first filter screen (2), the second filter screen (11), the first filtering membrane (7), the second filtering membrane (12) and described the second retaining ring (9), all fill up with caking agent;
Gap between the first filtering membrane (7) and the first retaining ring (6) is filled up with caking agent.
10. according to claim 8 or claim 9 filtering unit, is characterized in that,
Described the first filter screen (2) and the second filter screen (11) expose to communicate with described the first perforation (5) from the internal perisporium of described the first perforation (5).
11. filtering unit according to claim 10, is characterized in that, also comprises:
A plurality of the second perforation (17 ') that are arranged with sleeve (10 '), all second perforation (17 ') are positioned at zone between described the first and second retaining rings (6,9), and run through successively described the first filtering membrane (7), the first filter screen (2), planar rigidity block water plate (1), the second filter screen (11) and the second filtering membrane (12)
Wherein, between described sleeve (10 ') and described the first and second filter screens (2,11), and the gap between described sleeve and described the first and second filtering membranes (7,12) is all filled up with caking agent.
12. filtering unit according to claim 11, is characterized in that,
An axial end of each described sleeve (10 ') is configured to be pressed in the first flanging on described the first filtering membrane (7), and another axial end is configured to be pressed in the second flanging on described the second filtering membrane (12),
Wherein, described the first retaining ring (6) exceeds the height of described the first filtering membrane (7) and the height that described the second retaining ring (9) exceeds described the first filtering membrane (7), all greater than described the first flanging, exceeds the height of described the first filtering membrane (7).
13. according to claim 8-9, the described filtering unit of any one, is characterized in that,
Described the first filter screen (2) and the second filter screen (11) are double-layer structure, form by the first layer filter screen and second layer filter screen along vertically away from the direction of described block water plate (1), stacking gradually together,
Wherein, the mesh size of described the first layer filter screen is greater than the mesh size of described second layer filter screen.
14. according to claim 8-9, the described filtering unit of any one, is characterized in that,
Described rigidity block water plate (1) is rigid disk, and described the first and second retaining rings (6,9) are rigid disk.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202506095U CN203284262U (en) | 2013-05-09 | 2013-05-09 | Filter unit |
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| CN2013202506095U CN203284262U (en) | 2013-05-09 | 2013-05-09 | Filter unit |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103232120A (en) * | 2013-05-09 | 2013-08-07 | 北京万邦达环保技术股份有限公司 | Filtration unit |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103232120A (en) * | 2013-05-09 | 2013-08-07 | 北京万邦达环保技术股份有限公司 | Filtration unit |
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Granted publication date: 20131113 |