CN103212297B - Filter method - Google Patents
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- CN103212297B CN103212297B CN201310170253.9A CN201310170253A CN103212297B CN 103212297 B CN103212297 B CN 103212297B CN 201310170253 A CN201310170253 A CN 201310170253A CN 103212297 B CN103212297 B CN 103212297B
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Abstract
The invention relates to a filter method which comprises the following steps of: delivering water to be filtered to a running channel in a filter core for running, and filtering the water to be filtered in the running process in the running channel, wherein the water to be filtered runs in the running channel and is filtered in the running process under a pressure water sealing environment provided by the filter core. The pressure water sealing environment is provided by the filter core, and therefore, under the condition of no dependence on a pressure container, the water to be filtered under the pressure is filtered while running without pressure leakage.
Description
Technical field
The present invention relates to a kind of filter method.
Background technology
In prior art, filter such as seawater, bitter and wait for that the conventional method of filtered water adopts the filter plant with rolled film.Be an independent filter element with close-stacked filter membrane together and filter screen, being wound on by such filter element has on the water gathering tube of radial hole, these filter elements being wound on water gathering tube are exactly rolled film, and often adjacent two winding filter elements between close contact.
When adopting said apparatus work, water to be filtered enters with the axial end of certain pressure from rolled film, the water entering rolled film is along the radial flow of rolled film to water gathering tube, namely filtered layer by layer along this radial direction water, the water after filtration enters in water gathering tube from adopting mouth of a river outflow through the radial hole of water gathering tube.
But, above-mentioned method, and there is following defect in the device realizing said method:
(1) because a water to be filtered axial end from rolled film enters, this causes residue when filtering not only to remain on filter membrane and also remain on filter screen, thus not easy cleaning;
(2) again due in rolled film often adjacent two winding filter elements directly contact too tight each other, namely, in every adjacent two filter elements, close contact between the filter membrane of a filter element and the filter screen of another filter element, this causes remaining in when filtering dirt in rolled film more not easy cleaning and not washing clean clearly.
Therefore, existing rolled film is due to not easy cleaning and do not wash clean clearly, thus makes wound membrane filtration effect bad, and the sordid dirt of long-time cleaning can produce green paint, and rolled film also can be made to reduce service efficiency.
On the other hand, prior art filter plant is when filtering, pressure leakages is produced owing to having certain pressure in order to prevent the object to be filtered flowing through filter core, need to adopt pressure vessel, this not only makes the cost of filter plant higher, and owing to creating pressure leakages thus not reaching expectation filter effect.
Summary of the invention
For the one or more problems existed in correlation technique, a kind of press water sealed environment provided by filtration core is provided, treats the method that filtered water carries out filtering, any leakage can not be produced when not needing pressure vessel.
To achieve these goals, a kind of filter method is provided, comprise: water to be filtered is sent into the walking passageway walking in filtration core, and walk in process to filter in walking row of passages at water to be filtered, wherein, the walking of water to be filtered in walking passageway, and filtration in the process of walking, be all carry out in the press water sealed environment provided by filtration core.
Preferably, in the process that water to be filtered is walked in walking passageway, utilize and filter as the flat filter film of current to be filtered in walking passageway through surface; And adopt the flat screen be located under flat filter film, the clear water after flat filter membrane filtration is exported.
Preferably, walk in the process of walking passageway at water to be filtered, make filtration core relative to its axis direction up-down vibration simultaneously.
Preferably, walk in the process of walking passageway at water to be filtered, make filtration core around its axis reciprocally swinging simultaneously.
Preferably, the walking path of water to be filtered in walking passageway is set to: the axis direction around filtration core advances, and, when with axis place plane for the plane of reference time, walking path is along axis on the reference plane in continuous print in a zigzag.
Preferably, the pressure of water to be filtered is 20kg/cm
2above.
Preferably, the multiple plane filter element that the filtration core adopted presses together with comprising superposing type, each plane filter element includes described flat filter net and plane filter membrane, walking passageway runs through all plane filter elements, and form overall channel with all flat filter nets together with plane filter membrane, wherein in filtration core in order to form described overall channel each element between the seam at connecting position place filled by bonding agent, to provide press water sealed environment.
Compared to prior art, effect of the present invention has:
(1) the present invention carries out in the press water sealed environment provided at filtration core.Thus not by means of pressure vessel when, the walking limit, waterside to be filtered achieving band pressure is filtered and can not produce the effect of any pressure leakages.
(2) need compared to prior art filter method the situation adopting pressure vessel, prior art filtration core works under the pressure environment of pressure vessel.Filtration core due to prior art produces pressure leakages when filtering, so pressure is unbalanced in the filtration core of prior art, this causes the material of the element adopted in prior art filtration core, meet harmful effects such as can bearing the unbalanced distortion brought of this pressure.Thus the material cost of the related elements used when filtering in prior art filtration core is higher.Comparatively speaking, in the present invention, filtration core provides press water sealed environment, and each step in filter process all can not produce any leakage.So filter method of the present invention operationally, the pressure produced in filtration core is balanced.Like this, filter method of the present invention makes the material of the element of filtration core used need not consider to bear the unbalanced effect of pressure, thus can adopt the lower material of the costs such as plastics.
(3) in filter method of the present invention, adopt flat filter film and filter screen, water to be filtered only has and could be exported by filter screen after membrane filtration after filtration, thus after filtering, remaining residue can only remain on filter membrane, and dirt residual when this makes to filter in cleaning and filtering equipment becomes easy.Compared to rolled film in prior art, because a water to be filtered axial end from rolled film enters, this filter membrane causing residue when filtering not only to remain in rolled film also remains on the filter screen of rolled film, thus there is not easy cleaning and clean sordid defect.
(4) remain on the filter membrane of filtration core owing to having some solid particles (naked eyes are visible or invisible) in filter process, make in this method that filter core vibrates on the axis direction adopting aquaporin, filter core is around the axis reciprocally swinging adopting aquaporin, the compound motion of this swing and vibration makes these solid particles beat on filter membrane, thus these solid particles can be prevented the blocking of filter membrane.
(5) even if the pressure of water to be filtered is 20kg/cm
2above, still can flow in walking passageway under above-mentioned press water sealed environment and be transferred out by filter screen after flowing through membrane filtration.
Accompanying drawing explanation
Fig. 1 is an exemplary process diagram of filter method of the present invention;
Fig. 2 is the sectional view of a filter plant of the present invention embodiment, show there is the one group of filter element stacked together filtration core, drive the vibrating motor of filtration core vibration, drive filtration core around the swing mechanism of axis reciprocally swinging adopting aquaporin;
Fig. 3 is the schematic cross sectional views of the alternate embodiment of filtration core in Fig. 2;
Fig. 4 is the sectional view of a part of filter element in Fig. 3, shows water to be filtered flow path and form the details of the walking passageway of part overall channel in filtration core, filter membrane and filter screen wherein;
Fig. 5 is the sectional view of a filter element in Fig. 4;
Fig. 6 is the top view of the filter element of Fig. 5, is only example and illustrates not in scale;
Fig. 7 is the enlarged drawing in II portion in Fig. 2, shows the drain chamber bottom filtration core;
Fig. 8 is the sectional view of another example of the filter element adopted in filtration core of the present invention;
Fig. 9 is the enlarged drawing in I portion in Fig. 2, shows the details of swing mechanism;
Figure 10 is the simplified pinciple figure in order to swing mechanism in key diagram 9;
Figure 11 is the front view of the another embodiment of filter plant of the present invention;
Figure 12 is the left view of Figure 11;
Figure 13 is the phantom of filtration core in Figure 12, eliminates the filter element in each filtration core section, illustrate only the upper lower plate in each filtration core section for simplification reason;
Figure 14 is the further detailed view of filtration core section E3 in Figure 13, shows each filter element in this filtration core section.
Detailed description of the invention
Below in conjunction with accompanying drawing, the specific embodiment of the invention is described.
Filter method of the present invention is in order under making the press water sealed environment that provides at filtration core, and the filtration in the walking of water to be filtered, walking process is all carried out under press water sealed environment, and any leakage can not occur.Conveying (such as by the clear water after flat screen delivery of filtered) after even filtering also is carried under press water sealed environment, and any leakage can not occur.
Specifically, filter method of the present invention comprises: water to be filtered is sent into the walking passageway walking in filtration core, and to walk in process in walking row of passages at water to be filtered and filter it.Certainly, above-mentioned these are all carry out under the press water sealed environment provided at filtration core (not by pressure vessel).Preferably, the operand of filter method of the present invention can be pressure is such as 20kg/cm
2and above water to be filtered.
Fig. 1 schematically shows: the partial content of filter method of the present invention: S1: water to be filtered is sent into the walking passageway in filtration core; S2: in the process of walking, utilizes flat filter film to filter; And employing flat screen, the filtered water cross filter membrane filtration through plane after is exported.
In the methods of the invention, the multiple plane filter element that the filtration core adopted presses together with comprising superposing type, each plane filter element includes flat filter net and plane filter membrane.Walking passageway runs through all plane filter elements, and forms overall channel with all flat filter nets together with plane filter membrane.All processes that water to be filtered exports from flat screen after completing in overall channel and flowing through walking passageway, after filtration membrane filtration and filtration.In order to described press water sealed environment can be provided for above-mentioned all processes, the seam at connecting position place between each element of the above-mentioned overall channel of formation is preferably filled by bonding agent by the present invention, by means of above-mentioned bonding agent padding and the extruding each other of plane filter element, can not reveal at any seam crossing of overall channel in above-mentioned all processes.The mode of the press water sealed environment that filtration core provides, further describes in description afterwards.Described plane filter element, refers to the filter element that have employed flat filter film and flat screen, and this plane filter element can make water to be filtered flow to the direction of flat screen from flat filter film, is parallel to each other with the axis of filtration core.Plane filter element also can have a detailed description following.Filter membrane mentioned here and filter screen can be stacked two-layer film configuration in addition, and filter membrane covers filter screen.
Further, the walking path of water to be filtered in walking passageway is set to: the axis direction around filtration core advances, and, when with axis place plane for the plane of reference time, walking path is along axis on the reference plane in continuous print in a zigzag.Because the pressure of water to be filtered, 20kg/cm described above
2water to be filtered can flow in walking passageway under the effect of the pressure, and be arranged in walking passageway and filter as the filter membrane of current to be filtered through surface, the filter screen that clear water after filtration covers through filter membrane exports, and in obvious the present invention, the transmission of filtered water in filter screen is also carry out in above-mentioned press water sealed environment.And when the water yield to be filtered is large, the water of contacted filter membrane is filtered, the water to be filtered that cannot filter under the effect of the pressure, continues flowing along above-mentioned zigzag walking passageway.Again because the water to be filtered of contacted filter membrane exports from filter screen after being filtered, so always can be more and more denseer along the water to be filtered of walking passageway flowing in a zigzag, and the clear water after filtering in walking process can export through filter screen.
Further, in order to improve filter capacity, walking in the process of walking passageway at water to be filtered, making filtration core relative to its axis direction up-down vibration simultaneously, make filtration core around its axis reciprocally swinging simultaneously.
In addition, the invention provides a kind of filter plant for realizing said method, unlike the prior art, the present invention does not adopt pressure vessel to filter plant of the present invention, works under not making filtration core be in the wiper seal environment of pressure vessel.Filter plant of the present invention provides a kind of overall channel in filtration core, and this overall channel provides a kind of press water sealed environment, and can make certain pressure, (such as pressure is for 20kg/cm
2water to be filtered above) is walked while flow to after being filtered in the process of walking and adopt aquaporin in this overall channel, and walking, filter, filter after flow to all processes of adopting aquaporin and all any leakage can not occur.
See Fig. 2-Fig. 3, in the present invention, filtration core comprises: the one group of plane filter element be superimposed to extruding; And adopt aquaporin, this is adopted aquaporin and runs through this group filter element, and the clear water after filter element filtering all adopts aquaporin output filtering core by this.Because the water to be filtered entered in filtration core has pressure, so enter the clear water adopting aquaporin after filtering also have pressure, clear water can export from adopting aquaporin at this pressure.Can find out to adopt in aquaporin in Fig. 2-3 and be provided with water gathering tube 103, entering the clear water adopted in aquaporin can be entered in water gathering tube 103 by the radial hole of water gathering tube 103, and then exports through water gathering tube 103.But also without water gathering tube 103, and directly can be exported by the clear water adopted in aquaporin, this has later and further describes.Filtration core can be multiple filtration core sections, and four filtration core section D1 that such as Fig. 2-3 illustrates, D2, D3, D4, the axis along water gathering tube 103 is formed by stacking successively.Each filtration core section can disassemble as required, can adjust the number of the filtration core section of composition filtration core so easily.Obviously be appreciated that filtration core also can not be divided into multiple filtration core section fitted together, but an entirety.
Continue see Fig. 2-3, describe the situation that filtration core adopts multiple filtration core section to form.One group of described filter element can be divided into several (such as 4) and independently divide into groups, and what each grouping had oneself adopts water segmented channels (adopting water segmented channels is adopt for aquaporin relative to filtration core whole).In each grouping, another ground of all filter elements one superposition is connected by such as screw rod and to be squeezed on a pair between lower plate to form a filtration core section.Passing to formation successively mutually adopts aquaporin from beginning to end together to adopt water segmented channels in all filtration core section D1-D4.In order to be squeezed on a pair between lower plate by all filter elements in each filtration core section D1-D4, the axis vertical that the screw rod that each filtration core section D1-D4 adopts adopts aquaporin in Fig. 2 down runs through all filter elements and lower plate in train wheel bridge, this filtration core section successively.In figure 3, along the vertical axis direction of adopting aquaporin, all filter elements are clipped between top board 104 and floor 106, and the first through hole 102 on top board 104 is for passing into water to be filtered to filtration core, and the second through hole 108 of base plate 106 is in order to go out the concentrated water drainage of current to be filtered after filter core.Water to be filtered is divided into two parts water through filter core process, and a part becomes denseer and is above-mentioned dense water, and another part becomes above-mentioned clear water and enters and adopt aquaporin.
Be not be made up of multiple filtration core section fitted together for filtration core, but the situation that overall, this is equivalent to filtration core is exactly any one above-mentioned filtration core section, and now namely single water segmented channels of adopting is equivalent to the whole of filtration core and adopts aquaporin.That is, one group of described filter element need not be divided into several grouping as mentioned above.
How to filter in order to the clear walking process of water to be filtered in filtration core, in the process of walking and how to be admitted to after filtering and to adopt aquaporin, elder generation talks about from current to be filtered through single filter element herein.See Fig. 5-Fig. 6, show the first embodiment of filter element in filtration core.Each filter element 101 can provide the passage for current warp to be filtered, and by means of this passage, water to be filtered enters filter element and then out, and such passage can be referred to as first passage (hereafter having a detailed description example see Fig. 5 and Fig. 8).When the first passage head and the tail of filter elements all in filtration core are communicated with, can form around adopting aquaporin also along the walking passageway advanced in a direction (adopting the direction that aquaporin axis vertical is downward in such as Fig. 2) of the axis adopting aquaporin, this walking passageway penetrates the one group of described filter element in filter core.Current to be filtered, through filter core, are namely enter from the other end out from one end of above-mentioned walking passageway.In order to filter the water to be filtered of walking in walking passageway and the clear water feeding after filtering be adopted aquaporin, each plane filter element 101 also has: the filter membrane being shown in Figure 5 for the first filter membrane 7 and the second filter membrane 12, this filter membrane is located at current to be filtered in first passage on path, so as current to be filtered through first passage time it is filtered; And filter screen, above-mentioned filter membrane covers on filter screen, the clear water after membrane filtration can be sent into adopt in aquaporin by means of this filter screen.In Figure 5, filter screen is depicted as the first filter screen 2 and the second filter screen 11, first filter membrane 7 covers on the first filter screen 2, and the second filter membrane 12 covers on the second filter screen 11.So far can understand, when water to be filtered is walked in walking passageway, the first filter membrane 7 in each filter element 101 and the second filter membrane 12 can filter the water to be filtered navigated within walking passageway, and in each filter element 101 first filter screen 2 first filter membrane 7 can be filtered after clear water lead to and adopt aquaporin, in each filter element 101 second filter screen 11 second filter membrane 12 can be filtered after clear water lead to and adopt aquaporin.So, filtration core just achieve water to be filtered walk filter and by filter after clear water send into adopt in aquaporin.
Herein, by all filter membranes of all filter screens of one group of filter element described in above-mentioned walking passageway, filtration core, described one group of filter element with adopt aquaporin and be connected together and be referred to as overall channel.In the overall channel formed in the present invention, the clear water after filtration after membrane filtration just can must enter through filter screen to be adopted in aquaporin, namely filter membrane with adopt aquaporin and directly do not communicate.Send into after the walking of water to be filtered in filtration core, filtration and filtration and adopt aquaporin, these processes are all carried out in overall channel.
Based on as above formed overall channel, overall channel can be set to can to adopt aquaporin for feeding after the walking of water to be filtered, filtration and filtration and provide press water sealed environment by the present invention further.That is, send into after described walking, filtration and filtration and adopt aquaporin, when carrying out in overall channel, any leakage can not occur, even if the handling object entering filtration core is that (such as pressure is more than 20kg/cm for certain pressure
2water to be filtered above).In order to the press water sealed environment making overall channel can provide described, preferably, the seam bonding agent respectively connected between element forming overall channel can be filled, like this when this element that respectively connects is extruded at seam crossing, any leak point can not be produced at seam crossing.
Below see Fig. 4-Fig. 6, describe the first embodiment of the filter element that filtration core adopts in the present invention in more detail, and describe an example of overall channel in detail.As Fig. 5 and 6 illustrates, in described one group of filter element, each filter element 101 comprises: plane rigidity block water plate 1, be sequentially laminated on the first filter screen 2 on the first side of block water plate 1 and the first filter membrane 7 and the second filter screen 11 be sequentially laminated on second side (contrary with the first side) of block water plate 1 and the second filter membrane 12, first gear hydrosphere 6, second gear hydrosphere 9, first bore a hole 5 ' and multiple second of sleeve 10 ' that is arranged with bore a hole 13.Plane rigidity block water plate 1, first filter screen 2, first filter membrane 7, second filter screen 11 forms the stack of laminations in filter element 101 together with the second filter membrane 12.First gear hydrosphere 6 and second gear hydrosphere 9 are all layered on the first filter membrane 7, and second gear hydrosphere 9 surrounds first gear hydrosphere 6.First perforation 5 ' is positioned at the enclosing region of first gear hydrosphere 6, and the first perforation 5 ' runs through stack of laminations.First perforation 5 ' forms one and adopts water segmented channels together with first gear hydrosphere 6.First and second filter screens 2,11 from the internal perisporium of the first perforation 5 ' expose with adopt water segmented channels and communicate.Multiple second of sleeve 10 ' that is arranged with is bored a hole between the first and second retaining rings 6,9 in region, and these second perforation being arranged with sleeve 10 ' all run through stack of laminations.When adopting the extruding of multiple such filter element to be superimposed in obvious filtration core, each filter element adopt water segmented channels head and the tail be communicated with successively just can form filtration core adopt aquaporin, thus in each filter element, the first and second filter screens 2,11 are understood and adopt aquaporin and communicate.
With further reference to Fig. 4 and Fig. 5, the first passage of the part in order to form walking passageway in each filter element 101 is described.For every adjacent upper and lower two filter elements 101 shown in Fig. 4, when above the two is pressed on the first and second retaining rings 6,9 of below filter element, the mode of the second filter membrane 12 of filter element presses together, composition graphs 5 is known, and it be current to be filtered through surface and with each sleeve 10 ' be the described first passage exported that first gear hydrosphere 6, second gear hydrosphere 9, first filter membrane 7 and each sleeve 10 ' form with the first filter membrane 7 together.Can find out from Fig. 4 and Fig. 5, for every adjacent upper and lower two filter elements 101, below filter element the first filter membrane 7 together with the second filter membrane 12 in the filter element of top as the current to be filtered of first passage in the filter element of described below through surface, why like this, be because to be filtered to as if having pressure, object to be filtered can filter with the second filter membrane 12 in the filter element of top the first filter membrane 7 of filter element from below simultaneously.
Continue see Fig. 4 and Fig. 5.In the diagram, represent 6 successively stacked filter elements be pressed together with A1, A2, B, A3, A4, C, be the first embodiment of aforesaid filter element.The structure of filter element A1, A2, A3, A4 is identical and arranged direction is identical, respectively has two second perforation, and as shown in Figure 6, these two second perforation become 180 ° of angles around the axis around the first perforation 5 ', namely symmetrical relative to the first perforation 5 '; The difference of filter element B and filter element A1-A4 is biperforate position and quantity, and it only has one second perforation, and just to one second perforation of A2; Filter element C is identical with the structure of filter element B, and difference is that the biperforate position of the two becomes 180 ° of angles around the axis of the first perforation 5 '.When these 6 filter elements are arranged as Fig. 4, i.e. every adjacent two filter elements, when above being pressed on the first and second retaining rings 6,9 of below filter element, the mode of the second filter membrane 12 of filter element presses together, between the first passage of these six filter elements, head and the tail are communicated with each other, in the first passage that water to be filtered is communicated with at these head and the tail around adopt aquaporin axially with flowing in a zigzag, move down along the vertical axis adopting aquaporin.The zigzag flow path of water to be filtered represents with arrow M1, M2, M3, M4 particularly.In the diagram, water to be filtered flows straight down from arrow M1 direction, then transfer to flow to the right along arrow M2 direction level, flow straight down along arrow M3 direction again, then flow left along arrow M4 level, then flow downward along the direction of arrow M5 again, form one section of flexuose flow path by this.Along with the increase of filter element quantity, and suitably adjust biperforate quantity and position, water to be filtered just can be made along zigzag course footpath, always toward current downflow in the first passage communicated at head and the tail along the axial direction straight down adopting aquaporin, till hope stops.Obviously, for filtration core, all first passages finally form described walking passageway.Filter membrane treat the filtration of filtered water and filter screen filter membrane is filtered after clear water send into the behavior of adopting aquaporin, occur in the flow process of walking passageway at water to be filtered.Also can find out from Fig. 4: in filter element A1 below filter membrane, with in filter element A2 top filter membrane each other faced by and be spaced apart from each other due to the existence of the first and second retaining rings in filter element A2.In brief, between filter element A1 with filter element A2 each other faced by filter membrane between be spaced apart from each other instead of directly contact.
Behind the path that clear water to be filtered flows in overall channel, when filtration core employing filter element 101 is below described, the seam that may exist in overall channel, and the filling of abutment joint.See Fig. 4 and Fig. 5, in each filter element 101, between first gear hydrosphere 6 and the first filter screen 2, any seam of position is filled by bonding agent, in every adjacent upper and lower two filter elements in the filter element of below in first gear hydrosphere 6 and top filter element between the second filter screen 11 any seam of position fill by bonding agent, in each filter element 101, between second gear hydrosphere 9 and described first side of plane rigidity block water plate 1, any seam of position is filled by bonding agent, in every adjacent upper and lower two filter elements, in the filter element of below, between second gear hydrosphere 9 and described second side of top filter element midplane shape rigidity block water plate 1, any seam of position is filled by bonding agent, and each filter element 101 middle sleeve 10 ' and the first and second filter membranes 7, any seam of position between 12, and each filter element 101 middle sleeve 10 ' and the first and second filter screens 2, between 11, any seam of position is filled by bonding agent.It will of course be appreciated that the filling of above-mentioned abutment joint can not stop filtration after clear water lead to through filter screen and adopt aquaporin.
Composition graphs 4 and Fig. 5 known: in each filter element 101, between first gear hydrosphere 6 and the first filter screen 2, the seam of position comprises the filter opening of the first filter membrane 7, and wherein the first filter membrane 7 is squeezed between first gear hydrosphere 6 and the first filter screen 2 in this position; In every adjacent upper and lower two filter elements, in the filter element of below, in first gear hydrosphere 6 and top filter element, between the second filter screen 11, the seam of position comprises: the filter opening of the second filter membrane 12 in the filter element of top, wherein in the filter element of top the second filter membrane 12 above this position is squeezed in filter element in the second filter screen 11 and below filter element between first gear hydrosphere 6; In each filter element 101, between second gear hydrosphere 9 and described first side of plane rigidity block water plate 1, the seam of position comprises: the filter opening of the first filter membrane 7 and the filter opening of the first filter screen 2, and wherein the first filter membrane 7 and the first filter screen 2 are squeezed between second gear hydrosphere 9 and described first side of plane rigidity block water plate 1 in this position; In every adjacent upper and lower two filter elements, in the filter element of below, between second gear hydrosphere 9 and described second side of top filter element midplane shape rigidity block water plate 1, the seam of position comprises: the filter opening of the second filter membrane 12 and the filter opening of the second filter screen 11 in the filter element of top, wherein in the filter element of top the second filter membrane 12 and the second filter screen 11 this position be squeezed in second gear hydrosphere 9 in the filter element of below and above plane rigidity block water plate 1 described in filter element described second side between; In each filter element 101, sleeve 10 ' comprises with the first and second filter membranes 7,12 and with the seam of position between the first and second filter screens 2,11: the filter opening of the filter opening of the first and second filter membranes 7,12 respective parts connected with sleeve 10 ' and the first and second filter screens 2,11 respective parts connected with sleeve 10 '.Certain seam is not limited to this, and in every overall channel, any meeting makes the walking of water to be filtered in overall channel, filtration and leads to the seam crossing occurring when adopting aquaporin to leak after filtering, and is all filled with bonding agent.Such as, seam can also comprise the micropore etc. on the respective contact surface of the retaining ring contacted with filter screen or filter membrane, plane rigidity block water plate.
To sum up describe: when the filter element that filtration core adopts is the situation of above-mentioned first embodiment, that filtration core provides, can for water to be filtered walking, filter, filter after lead to and adopt the overall channel that aquaporin provides press water sealed environment.
But except the filter element of above-mentioned first embodiment, the filter element that filtration core adopts can be also other embodiments, for example, see the second embodiment of the filter element shown in Fig. 8.Describe second embodiment of filtering unit below in detail see Fig. 8, all filter elements in filtration core can adopt the filter element of this second embodiment.Particularly, in a second embodiment, filter element 101 ' comprising: stack of laminations, and stack of laminations is formed by plane rigidity block water plate 1 and the first filter screen 2 stacked gradually on the first side of plane rigidity block water plate 1 and the first filter membrane 7; First gear hydrosphere 6 and second gear hydrosphere 9, be all layered on the first filter membrane 7, second gear hydrosphere 9 surrounds first gear hydrosphere 6; Run through the first perforation 5 of described stack of laminations, first perforation 5 is positioned at the enclosing region of first gear hydrosphere 6, first perforation 5 forms one and adopts water segmented channels together with first gear hydrosphere 6, the first filter screen 2 from the internal perisporium of the first perforation 5 expose with adopt water segmented channels and communicate; And multiple the second perforation being arranged with sleeve 10, in the region all between the first and second retaining rings 6,9, and all run through stack of laminations.When adopting the extruding of multiple such filter element to be superimposed in obvious filtration core, each filter element adopt water segmented channels head and the tail be communicated with successively just can form filtration core adopt aquaporin, thus in each filter element, the first filter screen 2 is understood and adopts aquaporin and communicate.
Multiple filter element 101 ' can press together as the aforementioned mode see Fig. 4 description, now, every adjacent upper and lower two filter elements 101 ', described first side of the plane rigidity block water plate 1 of top filter element is compressed (namely with the first and second retaining rings 6,9 of below filter element, first and second retaining rings 6,9, are directly pressed on plane rigidity block water plate 1) mode press together.In each filter element 101 ', the first filter membrane 7, first gear hydrosphere 6, second gear hydrosphere 9 and each sleeve 10, to form with the first filter membrane 7 be together current to be filtered through surface and with each sleeve 10 be the described first passage exported.
So, another embodiment of overall channel in the present invention can be obtained.When filter element in filtration core all adopts above-mentioned filter element 101 ', in all filter elements 101 ', first passage communicates with each other, and can form around adopting aquaporin also along the walking passageway advanced in a direction (adopting the direction that aquaporin axis vertical is downward in such as Fig. 2) of the axis adopting aquaporin; All filter screens and all filter membranes of above-mentioned walking passageway, each filter element 101 ' and adopt aquaporin and to be connected together formation overall channel.Similarly, this overall channel is arranged to, for the walking of water to be filtered, filtration and send into after filtering and adopt aquaporin and provide press water sealed environment.That is, send into after described walking, filtration and filtration and adopt aquaporin, when carrying out in overall channel, any leakage can not occur, even if the handling object entering filtration core is that (such as pressure is more than 20kg/cm for certain pressure
2water to be filtered above).In order to the press water sealed environment making overall channel can provide described, preferably, the seam bonding agent respectively connected between element forming overall channel can be filled, like this when this element that respectively connects is extruded at seam crossing, any leak point can not be produced at seam crossing.
When multiple filter element 101 ' presses together as the aforementioned mode see Fig. 4 description, the seam of the element that respectively connects of overall channel: be in position between the first gear hydrosphere 6 of filter element 101 ' and the first filter screen 2, position between first side described in second gear hydrosphere 9 and plane rigidity block water plate 1, and sleeve 10 and position between the first filter membrane 7 and the first filter screen 2, any seam of position described in all these is filled by bonding agent.In each filter element 101 ', between first gear hydrosphere 6 and the first filter screen 2, the seam of position comprises: the filter opening of the first filter membrane 7, and wherein the first filter membrane 7 is squeezed between first gear hydrosphere 6 and the first filter screen 2 in this position; In each filter element 101 ', described in second gear hydrosphere 9 and plane rigidity block water plate 1, between the first side, the seam of position comprises: the filter opening of the first filter membrane 7 and the first filter screen 2, and wherein the first filter membrane 7 and the first filter screen 2 are squeezed between second gear hydrosphere 9 and described first side of plane rigidity block water plate 1 in this position; In each filter element 101 ', sleeve 10 comprises with the seam of position between the first filter membrane 7 and the first filter screen 2: the filter opening in the part that the first filter membrane 7 and the first filter screen 2 connect with sleeve 10 separately.Certain seam does not limit to the above, and in every overall channel, any meeting makes the walking of water to be filtered in overall channel, filtration and leads to the seam crossing occurring when adopting aquaporin to leak after filtering, and is all filled with bonding agent.Such as, seam can also comprise the micropore etc. on the respective contact surface of the retaining ring contacted with filter screen or filter membrane, plane rigidity block water plate.
Compared to the filtration core of prior art filter plant, pressure leakages is produced when existing filtration core filters, so filtration core is just located in the pressure environment of pressure vessel by prior art, but Just because of this, pressure during work in existing filtration core is unbalanced, this causes the material of the element adopted in existing filtration core to want to bear the harmful effects such as the unbalanced distortion brought of this pressure, thus cost is higher.Comparatively speaking, overall channel in the present invention in filtration core can provide press water sealed environment, after making the walking of water to be filtered in overall channel in walking passageway, the filtration in walking process and filtration, feeding is adopted aquaporin and all can not be produced any leakage, so operationally, in filtration core, in overall channel, pressure is balanced.Like this, in the present invention, filtration core forms each element of described overall channel (such as, filter element midplane shape rigidity block water plate, first gear hydrosphere and second gear hydrosphere) the unbalanced harmful effect of pressure need not be born, correspondingly lower to material requirements, thus cost of the present invention is lower.Such as, all rigidity block water plates 1 can be plastic sheet, sheet metal; All first and second retaining rings 6,9 are stereosphere, such as, can be plastic seal ring, metal o-ring.
The present invention is in each filter element, and filter screen and filter membrane are respectively flat screen and plane filter membrane, and preferably, flat screen and plane filter membrane can perpendicular to the axis arranged of the first perforation.The aperture of the filter opening of flat screen is greater than the aperture of the filter opening of flat filter film.Filter membrane (comprising the first filter membrane, the second filter membrane) described in the present invention, can be such as that reverse osmosis membrane and NF membrane etc. can the films of filtering molecular (such as can filter salts molecule), also can be can the film of filtering particle and not filtering molecular.
Preferably, when the axis adopting aquaporin is arranged vertically, the present invention is in all filter elements of filtration core, have following upper and lower two filter elements be pressed on together arranged at least, wherein go up the lower port of at least one the second perforation place sleeve in filter element, stagger relative to the upper port of the second perforation place sleeves all in lower filter element.
In order to understand the arrangement of the walking passageway of overall channel in the present invention further, to abut against upper and lower two filter elements together, from the angle of projection, namely from upper filter element, the projection angle of biperforate sleeve in lower filter element on the first filter membrane is described.See Fig. 4 and Fig. 5, when in following filter element, the first filter membrane is perspective plane, in upper filter element, (sleeve has upper and lower two ports for the lower port of each biperforate sleeve, wherein towards the port of lower filter element, namely from the port close to lower filter element be lower port) on this perspective plane, have the first projection, in lower filter element, (sleeve has upper and lower two ports for the upper port of each sleeve, wherein towards the port of upper filter element, namely from the port close to upper filter element be upper port) on this perspective plane, have the second projection.When in this perspective plane, when at least one first projection is positioned at outside the region of all second projection encirclements, so just make the lower port of at least one biperforate sleeve in filter element, relative to the upper port of biperforate sleeves all in lower filter element stagger completely (around adopt aquaporin axis direction on stagger completely).So, water to be filtered flows to the mode of the first passage of lower filter element from the first passage of upper filter element, be not mode straight up and down, but the mode mutually staggered, this makes water to be filtered have more multimachine to flow through filter membrane, thus increases the chance of the filtration of water to be filtered.Certainly above-mentioned mutually stagger can be part stagger, part stagger relative to above-mentioned stagger completely for, refer to: in described perspective plane, at least one first projection with one of them second project crossing, but mutually do not comprise or overlapping relation.For above-mentioned stagger completely for, when relative to the axis adopting aquaporin, be most preferred when between two objects mutually staggered, angle is 180 °.The aforementioned situation describing water walking path to be filtered with M1-M4 see Fig. 4 and Fig. 5 just belongs to this 180 ° staggering completely.Now, walking passageway is around the walking path of axis adopting aquaporin, adopt aquaporin axis in the plane be projected as continuous print " in a zigzag " (" in a zigzag " also can alternatively be expressed as, to adopt the square wave shape that the axis of aquaporin is datum line).From another angle, the lower port (being called for short the first outlet) of at least one biperforate sleeve in the filter element of top, stagger completely with the upper port of biperforate sleeves all in the filter element of below, namely, in the filter element of top, described at least one, the first outlet is just right with the first filter membrane in the filter element of below, instead of it is just right with the upper port of any one the second perforation place sleeve in the filter element of below, this makes to be changed from the water route to be filtered of the first outlet, thus more water to be filtered could flow away from sleeve after needing to flow through the first filter membrane in the filter element of below, this adds increased the chance of current to be filtered through the first filter membrane of below filter element, this is convenient to water to be filtered and fully filters in the filter element of below.
The extruding of element in extruding between filter element described in the present invention and each filter element, extruding force can be all due to aforesaid filtration core section or filtration core, is that the screw rod adopted transmits at each filter element of extruding.Such as, see Fig. 3, altogether four filtration core section D1-D4 are squeezed between top board 104 and base plate 106 by screw rod 105, and screw rod 105 is located at the periphery of stack of laminations in each filter element, and run through top board 104, the plane rigidity block water plate 1 of each filter element and base plate 106 successively.In Fig. 3, screw rod 105 just can cause the extruding of element in the extruding between each filter element and each filter element.
Filter plant of the present invention also comprises: be provided for the vibrating motor that filtration core vibrates along the axial direction adopting aquaporin.Such as, see Fig. 2, the base 119 of filter plant also gripper shoe 117, fixed support plate 117, is provided with beam 118 between the contact position of gripper shoe 117 and base 119; Multiple vibrating motor 126, is fixed in gripper shoe 117 around the axis adopting aquaporin in the mode that mutual angle is equal.When these vibrating motors work, filtration core can be made along the axial direction vibration of adopting aquaporin.Continue see Fig. 2, in the bottom of filtration core 100, be provided with projecting shaft 120 regularly, the axis of this projecting shaft 120 can with the axis coaxle adopting aquaporin, filtration core 100 by being rotatably supported in gripper shoe 117 by such as bearing by projecting shaft, and is supported in gripper shoe 117 rotationally around the axis adopting aquaporin.Composition graphs 2 and Fig. 7, base plate 106 is fixed with sleeve 112, and be connected with plate 113 at the port away from base plate 106 of sleeve, projecting shaft is arranged on plate 113.Wherein, the space that sleeve 112 and base plate 106, plate 113 surround can be used as drain chamber 115, (dense compared to the initial water to be filtered sending into filtration core to hold by the water to be filtered of discharging after flowing through filter core, because there occurs filtration through during filtration core, and by filtrations afterwards clear water be fed into adopt aquaporin).In order to be discharged by water to be filtered in drain chamber, can draw drainpipe from plate 113, when projecting shaft is set to hollow, this drainpipe can draw in vacancy from this.
Filter plant of the present invention also comprises: make filtration core around the swing mechanism of axis reciprocally swinging adopting aquaporin.See Fig. 2 and Fig. 9 and Figure 10, swing mechanism comprises: frequency modulation motor 121, rotating disk 124, connecting rod 122.Frequency modulation motor 121 is fixed in gripper shoe 117, and the output shaft of frequency modulation motor 121 can drive rotating disk 124 to rotate.Rotating disk 124 is provided with a corral to rotate the groove 125 of pivot center of dish 124.Connecting rod 122 one end is fixedly connected with integral with projecting shaft 120, and connecting rod 122 other end slides in groove 125 with the rotation of rotating disk 124.The profile design of groove 125 becomes to meet following condition: make connecting rod 122 drive filtration core 100 around the axis reciprocally swinging adopting aquaporin with the rotation of rotating disk 124.When in the present invention, filtration core swings around axis actual be the axis of projecting shaft 120.The axis of projecting shaft 120, with most preferred when adopting the overlapping of axis of aquaporin.But the two can not overlap.As shown in Figure 2, drive the frequency modulation motor 121 of rotating disk 124 can be fixed in gripper shoe 117, the output shaft of frequency modulation motor 121 is fixedly connected with rotating disk 124, to rotate rotating disk 124.In preferred embodiment, the axis of frequency modulation motor output shaft overlaps with the center of circle of rotating disk 124.
In Fig. 10, the track of groove 125 is the off-centre operations in the center of circle relative to rotating disk 124, and this off-centre operation represents with L relative to the eccentric throw in the center of circle of rotating disk 124.Arrow in Figure 10 is the rotation direction example of rotating disk 124.When rotating disk 124 rotates, groove 125, due to eccentric with the pivot center of rotating disk 124, therefore can drive projecting shaft 120 to swing by the connecting rod 122 slided wherein, thus drive filtration core to swing.Should be appreciated that, the track of groove 125 is not be necessary for off-centre operation shown in Figure 10, as long as this track meets: the trajectory shape with rotation drive projecting shaft 120 swing making connecting rod 122 with rotating disk 124.Obviously also the cam of fluted 125 trajectory shapes of apparatus rotating disk 124 can be replaced, as long as now ensure that one end (that one end of originally sliding in a groove) of connecting rod 122 is rotated with cam and slides on the outward flange of cam.
When filtration core 100 is due to above-mentioned vibrating motor and swing mechanism, when carrying out this vibration simultaneously and swing, the motion of the solid particle (staying the solid particle on filter membrane during filtration) in filtration core 100 on filter membrane is exactly the compound motion of vibration and swing, is referred to as to beat herein.Thus, because solid particle is beated on the filter membrane of filtration core, these solid particles just can be prevented the blocking of filter membrane.
In figs. 2 and 3, the lower port of adopting aquaporin seals in different ways.Such as, sealing gasket fit sealing is adopted in Fig. 2; Rubber sleeve is adopted to seal in Fig. 3.
When filter plant of the present invention adopts water gathering tube 103, it is by water gathering tube section in each filtration core section (during water gathering tube section for the whole water gathering tube 103 of filtration core) realization that the head and the tail adopted in each filtration core section (in such as Fig. 1 D1-D4) between water segmented channels are communicated with.Such as, in the filtration core section of shown in Fig. 14, the corresponding water gathering tube section of each filtration core Duan Youyi, each water gathering tube section has radial hole to communicate with the water segmented channels of adopting of this filtration core section, but the two ends of water gathering tube section are that water-stop is connected with adopting between water segmented channels, when the end of so every adjacent two water gathering tube sections is connected, just can makes often to adopt water segmented channels between adjacent two filtration core sections and communicate.As shown in Figure 1, after a filtration core section is filtered, send into another filtration core section to make water to be filtered and continue to filter, can be linked together by such as seal sleeve 130 between adjacent two filtration core sections.In Fig. 1, seal sleeve 130 is arranged around water gathering tube 103.From the angle of overall channel, seal sleeve 130 is to be interconnected by the first passage between adjacent each filtration core section, to make water to be filtered can flow through D1-D4 filtration core section successively, the seam at any connecting position place obviously therefore between seal sleeve 130 and other parts is also adopt bonding agent to fill.
The another embodiment of filter plant of the present invention is described see Figure 11-14 below.The difference of this embodiment and the aforementioned filter plant described see Fig. 1-10 is mainly: the filter plant of Figure 11-14 does not adopt water gathering tube 103, the connection of adopting between water segmented channels of each filtration core section (such as E1-E3) also has nothing to do with water gathering tube 103, but is connected by such as adpting flange.Below be described in detail.
Illustrate in Figure 11-Figure 14: base 119, vibrating motor 126, the first screw rod 221, filtration core section E1, E2, E3, frequency modulation motor 121, dense water pipe 222, raw water tubes group 223, water producing pipe group 224.The pipeline supply filtration core of water to be filtered (also can be referred to as former water) in raw water tubes group 223 filters; Enter the clear water adopting aquaporin in filtration core to export from the water producing pipe of water producing pipe group 224; The dense water thickened after filtration exports through dense water pipe 222.Vibrating motor 126 vibrates relative to base 119 in order to make filtration core, and vibrating motor 126 is not must foregoing, be angularly evenly arranged multiple each other around the axis of filtration core.Frequency modulation motor 121 with as previously described, be swing as the power drive filtration core of swing mechanism, this swing mechanism can be identical with aforementioned swing mechanism.
See Figure 13, show: lower plate 202 and train wheel bridge 220 in filtration core section E3, train wheel bridge 229 and lower plate 219, first adpting flange 207, second adpting flange 217, second screw rod 201 in filtration core section E2.First adpting flange 207, for adopting water segmented channels in filtration core section E2, and adopts moisture section channel connection in filtration core section E3, adopt moisture section channel connection with what make the two.Second adpting flange 217, for the former water out 227 by filtration core section E2, is communicated with the former water inlet 228 of filtration core section E3, proceeds to filter to make the being taked water to be filtered after clear water (thickening compared to before filtration) to send in E3 in E2.Filter element group is squeezed between its train wheel bridge 229 and lower plate 219 by multiple second screw rod 221.Figure 13 also show: the 3rd adpting flange 218, and in order to connect dense water pipe 222, the remaining concentrated water drainage thickened after taking clear water in filtration core goes out by this dense water pipe 222; 4th flange 209, for being communicated with the water producing pipe in water producing pipe group 224; 5th flange 210, for the pipeline communication with raw water tubes group 223; Connect cap 216, for will not threadedly couple together; Capping 204, for being closed by the bottom nozzle adopting aquaporin in filtration core, namely closes the bottom nozzle adopting water segmented channels of filtration core section E3 in fig. 13, enters like this to adopt clear water in aquaporin due to pressure and can only export from the water producing pipe of water producing pipe group 224.
In conjunction with Figure 13 and Figure 14, wherein shown in Figure 13 is the sectional view of filtration core section E3, also shows filter element group wherein.Can find out in fig. 14, filtration core section E3 is the same with other filtration core section E1 and E2, also adopts the first screw rod 221 and the second screw rod 201.By multiple second screw rod 221 and multiple first screw rod 201, one group of filter element is squeezed between train wheel bridge 220 and lower plate 202.Wherein said multiple second screw rods 201, be positioned at the enclosing region of the first gear hydrosphere 6 of each filter element, be arranged on to be formed adopt around aquaporin, run through each plane rigidity block water plate in train wheel bridge 220, filter element and lower plate 202 successively.It may be noted that arranging the second screw rod 201 is only preferred mode.When the second screw rod 221 extrudes the extruding force that train wheel bridge 220 applies with lower plate 202, when can meet the requirement of overall channel in the present invention, and adopt clear water in aquaporin when also can not there is leakage, also can the second screw rod 201.
Also can find out from Figure 14, all first screw rods 221 not through any parts of filter element, but directly through train wheel bridge 220 and lower plate 202, are arranged on the periphery of all filter elements.Continue see Figure 13 and Figure 14, the structure of three filtration core section E1-E3 can be identical, and certainly contained separately filter element is also identical with combination situations with the structure of the filter element of aforementioned description.Should be appreciated that, filter element number in each filtration core section, and the arrangement whether each filter element arranges the second perforation and arrange biperforate quantity and biperforate position and each adjacent filtration member all can change according to specific requirement.As long as can meet the walking of water to be filtered in filtration core, the filtration of walking process and the clear water after filtering are sent into adopt aquaporin be all carry out under press water sealed environment.
With reference to the filter plant of the present invention of the description of above composition graphs 11-14, obviously, when not adopting water gathering tube, the gap that in filter plant of the present invention, bonding agent is filled tails off.
It may be noted that and differ filtration core in the present invention to establish a capital be the filter element of employing first embodiment, or be all the filter element of employing second embodiment, but can carry out changing and combining, as long as meet the requirement of the present invention to overall channel.The first filter screen mentioned in the present invention and the second filter screen can be one decks also can be multilayer.Such as, the first filter screen 2 can be set to double-layer structure, is made up of ground floor filter screen stacked together and second layer filter screen.Particularly, ground floor filter mesh layer is stacked on block water plate 1, and the first filter membrane 7 is layered on second layer filter screen, and the mesh size of ground floor filter screen is greater than the mesh size of second layer filter screen.In brief, ground floor filter screen can be referred to as coarse net, second layer filter screen can be referred to as fine-structure mesh.The advantage of ground floor filter screen and second layer filter screen is adopted to be, even if when the pressure that water to be filtered puts on filter membrane causes filter membrane to cave in block ground floor filter screen, second layer filter screen can not block due to the depression of filter membrane, thus the clear water after filtering still can be made to lead to unobstructedly and adopt aquaporin.
Such as, when water to be filtered is the strong brine of the certain pressure (such as 20 kilograms every square centimeter) of containing sulfate, nitrate, carbonate etc. and electrical conductivity is 4000 μ s/cm, adopt filter plant of the present invention, when vibrating, also need not swing, the clear water produced after strong brine process reaches in the scope that electrical conductivity is (4000X (1-99.2%)) μ s/cm to (4000X (1-99.5%)) μ s/cm." X " expression is multiplied.Corresponding to the operating ambient temperature of water to be filtered and pressure change, after filtering, institute obtains clear water and reaches electrical conductivity and understand respective change, but in above-mentioned scope.
Claims (6)
1. a filter method, is characterized in that, comprising:
Water to be filtered is sent into the walking passageway walking in filtration core, and walks in process to filter in walking row of passages at described water to be filtered,
Wherein, the walking of described water to be filtered in walking passageway, and described filtration are in the process of walking all carry out in the press water sealed environment provided by described filtration core,
Wherein, the multiple plane filter element that the filtration core adopted presses together with comprising superposing type, each plane filter element includes flat filter net and plane filter membrane,
Wherein, walking passageway runs through all plane filter elements, and forms overall channel with all flat filter nets together with plane filter membrane,
Between each element of formation overall channel, the seam at connecting position place is filled by bonding agent.
2. filter method according to claim 1, is characterized in that,
In the process that described water to be filtered is walked in walking passageway, utilize and carry out described filtration as the flat filter film of current to be filtered in walking passageway through surface; And
Employing is located at the flat screen under described flat filter film, the filtered water after described flat filter membrane filtration is exported, and the output of described filtered water is carried out in described press water sealed environment.
3. filter method according to claim 2, is characterized in that,
Walk in the process of described walking passageway at described water to be filtered, make described filtration core relative to its axis direction up-down vibration simultaneously.
4. filter method according to claim 3, is characterized in that,
Walk in the process of described walking passageway at described water to be filtered, make described filtration core around its axis reciprocally swinging simultaneously.
5. the filter method according to any one of claim 1-4, is characterized in that,
The walking path of described water to be filtered in described walking passageway is set to: the axis direction around described filtration core advances,
Further, when with described axis place plane for the plane of reference time, described walking path along described axis in described reference planes in continuous print in a zigzag.
6. the filter method according to any one of claim 1-4, is characterized in that,
The pressure of described water to be filtered is 20kg/cm
2above.
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| JP5561473B2 (en) * | 2010-03-31 | 2014-07-30 | 栗田工業株式会社 | Filtration device and water treatment device |
| CN102805968B (en) * | 2012-08-20 | 2014-08-20 | 北京万邦达环保技术股份有限公司 | Filer tank |
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