CN117185424B - Ultrafiltration membrane sewage filtering device - Google Patents
Ultrafiltration membrane sewage filtering device Download PDFInfo
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- CN117185424B CN117185424B CN202311463282.4A CN202311463282A CN117185424B CN 117185424 B CN117185424 B CN 117185424B CN 202311463282 A CN202311463282 A CN 202311463282A CN 117185424 B CN117185424 B CN 117185424B
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- 239000012528 membrane Substances 0.000 title claims abstract description 149
- 239000010865 sewage Substances 0.000 title claims abstract description 146
- 238000000108 ultra-filtration Methods 0.000 title claims abstract description 127
- 238000001914 filtration Methods 0.000 title claims abstract description 50
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 159
- 239000012535 impurity Substances 0.000 claims abstract description 73
- 238000004140 cleaning Methods 0.000 claims abstract description 7
- 230000000694 effects Effects 0.000 claims description 37
- 238000007790 scraping Methods 0.000 claims description 29
- 230000005540 biological transmission Effects 0.000 claims description 14
- 238000000034 method Methods 0.000 claims description 14
- 238000007599 discharging Methods 0.000 claims description 6
- 238000005452 bending Methods 0.000 claims description 5
- 230000002349 favourable effect Effects 0.000 claims description 5
- 230000001174 ascending effect Effects 0.000 claims description 3
- 230000002708 enhancing effect Effects 0.000 claims description 2
- 238000004075 wastewater filtration Methods 0.000 claims 2
- 230000009286 beneficial effect Effects 0.000 abstract description 6
- 238000012423 maintenance Methods 0.000 abstract description 3
- 238000005374 membrane filtration Methods 0.000 abstract description 2
- 230000000903 blocking effect Effects 0.000 description 5
- 230000002035 prolonged effect Effects 0.000 description 5
- 230000000630 rising effect Effects 0.000 description 5
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 238000003491 array Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
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- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The invention relates to the technical field of sewage treatment, in particular to an ultrafiltration membrane sewage filtering device. The technical problems to be solved are as follows: when the existing ultrafiltration membrane equipment filters sewage, impurities in the sewage are attached to the surface of membrane wires, so that the membrane wires are blocked, the ultrafiltration membrane filtration efficiency is greatly reduced, water is required to be cut off when the device is cleaned, the water demand of a water supply object is affected, and meanwhile, the cleaning period of the ultrafiltration membrane device is shortened, and the maintenance cost of the ultrafiltration membrane device is increased. The technical scheme of the invention is as follows: an ultrafiltration membrane sewage filtering device comprises a filter tank, a water inlet pipe and the like; the lower side of the filter tank is provided with a water inlet pipe. The invention realizes that the water pressure of sewage entering the filter tank is controlled by the electromagnetic valve, so that the ultrafiltration membrane moves up and down in the filter tank, which is beneficial to the sewage to fully contact with the interior of the ultrafiltration membrane, prevents the low utilization rate of the filter membrane in the middle of the ultrafiltration membrane, improves the filtration efficiency of the sewage, and prolongs the service life of the ultrafiltration membrane.
Description
Technical Field
The invention relates to the technical field of sewage treatment, in particular to an ultrafiltration membrane sewage filtering device.
Background
The utility model provides a chinese patent of application number CN202021499136.9, an ultrafiltration membrane subassembly of even water distribution, the device is through setting up central water pipe and the branch water pipe that is the curve and encircle, can make ultrafiltration membrane subassembly water inlet distribution even, make the raw water abundant evenly flow around the whole of every membrane silk, thereby make ultrafiltration membrane subassembly when carrying out water purification, the water flow distributes evenly in the membrane shell, can improve the uneven condition of each membrane silk pollution in the ultrafiltration membrane subassembly, reduce the speed of membrane pollution, make the membrane silk easily wash, the life extension of ultrafiltration membrane subassembly. However, when the device is used for filtering sewage normally, impurities in the sewage are intercepted by membrane wires outside the ultrafiltration membrane and are attached to the surfaces of the membrane wires, so that the membrane wires are blocked, and the filtration efficiency of the ultrafiltration membrane is greatly reduced.
Further, when the existing ultrafiltration membrane device filters sewage, impurities in the sewage on the surface of the ultrafiltration membrane and in the filter tank cannot be collected and treated under the condition that the filtering operation is not stopped, water is required to be cut off when the device is cleaned, the water demand of a water supply object is affected, meanwhile, the cleaning period of the ultrafiltration membrane device is shortened, and the maintenance cost of the ultrafiltration membrane device is increased.
Disclosure of Invention
In order to overcome the defects that when the traditional ultrafiltration membrane equipment filters sewage, impurities in the sewage are attached to the surfaces of membrane wires, so that the membrane wires are blocked, the ultrafiltration membrane filtration efficiency is greatly reduced, water is required to be cut off when the device is cleaned, the water supply requirement of a water supply object is influenced, meanwhile, the cleaning period of the ultrafiltration membrane device is shortened, and the maintenance cost of the ultrafiltration membrane device is increased.
The technical scheme of the invention is as follows: an ultrafiltration membrane sewage filtering device comprises a filtering tank, a water inlet pipe, a water outlet pipe, an ultrafiltration membrane and an electromagnetic valve; a water inlet pipe is arranged at the lower side of the filter tank; a water outlet pipe is arranged on the upper side of the filter tank; an ultrafiltration membrane which is used for filtering sewage and is convenient to detach is arranged in the filter tank; the water inlet pipe is provided with an electromagnetic valve for controlling water pressure; the device also comprises a water receiver, a first limiting rod, a water diversion assembly, a transmission pipe, an elastic water bag and a collecting system; a water receiver is arranged between the ultrafiltration membranes; a plurality of first limit grooves are formed in the inner side of the filter tank; a plurality of first limiting rods are arranged on the outer side of the ultrafiltration membrane; each first limiting rod is positioned in the corresponding first limiting groove; the inner side of the filter tank is provided with a diversion component for guiding water flow; a transmission pipe for transmitting water flow is arranged in the middle of the ultrafiltration membrane; a plurality of elastic water bags for stretching the ultrafiltration membrane are arranged on the transmission pipe; the outside of the water receiver is provided with a collecting system for collecting impurities in the sewage.
More preferably, the first limiting groove is arranged to be inclined counterclockwise and upward firstly, and inclined clockwise and upward after being bent, based on the view from bottom to top.
More preferably, the water diversion assembly comprises a guide plate and a blade; the lower part of the inner side of the filter tank is fixedly connected with a plurality of guide plates for guiding water flow; each guide plate is inclined upwards; the bottom of the ultrafiltration membrane is fixedly connected with a plurality of blades for enhancing the torsion effect of the ultrafiltration membrane.
More preferably, the water diversion assembly further comprises a water collector; the bottom of the transmission pipe is fixedly connected with a water collector for guiding water flow, and the water collector is in a shape of a round table which is communicated up and down.
More preferably, the collecting system comprises a collector, a collecting cavity, a second limiting rod, an upper water inlet device, a lower water inlet device, a drain pipe and a baffle plate; the outer side of the water receiver is fixedly connected with a collector for collecting impurities in the sewage; the outer side of the collector is attached to the inner wall of the filter tank, and the collector divides the interior of the filter tank into an upper chamber and a lower chamber; a collecting cavity for storing impurities in the sewage is formed in the collector; a plurality of second limit grooves are formed in the inner side of the filter tank; a plurality of second limiting rods are fixedly connected to the upper side of the collector; each second limiting rod is positioned in the corresponding second limiting groove; the upper side of the collector is fixedly connected with a plurality of upper water inlet devices; each upper water inlet device is communicated with the collection cavity, and the bottom of the upper water inlet device is lower than the top of the collection cavity; the lower side of the collector is fixedly connected with a plurality of lower water inlet devices; each lower water inlet device is communicated with the collecting cavity, and the top of the lower water inlet device is higher than the lower part of the collecting cavity; the outer side of the collector is communicated with a drain pipe for discharging impurities in the collecting cavity, and the drain pipe penetrates through the side wall of the filter tank; the filter tank is provided with a movable groove; a baffle plate for preventing sewage from flowing out of the filter tank is fixedly connected to the sewage discharge pipe; the baffle is positioned in the movable groove.
More preferably, based on the view from bottom to top, the second limiting groove is set to be inclined clockwise and upwards, and is inclined anticlockwise and upwards after being bent, and the bending angle of the second limiting groove is smaller than that of the first limiting groove.
More preferably, the upper water inlet device is arranged in a funnel shape; the lower water inlet device is arranged in an inverted funnel shape.
More preferably, the device further comprises an interception guiding system, wherein the interception guiding system comprises a filter screen; a plurality of filter screens for intercepting impurities in the collecting cavity are fixedly connected in the collecting cavity of the collector; the filter screen positioned at the upper part of the inner side of the collecting cavity is gradually inclined upwards based on the condition that the outer side of the collector is seen to the middle part of the collector, and the filter screen positioned at the lower part of the inner side of the collecting cavity is gradually inclined downwards.
More preferably, the interception guiding system further comprises a guiding piece; a plurality of guide sheets for guiding impurities in the sewage are fixedly connected in the collecting cavity of the collector; each guide piece is arranged in an inclined shape along the inner wall of the collecting cavity toward the middle part of the front side of the collecting cavity based on the back-to-front view.
More preferably, the device further comprises a first scraping strip and a second scraping strip; the lower side of the collector is fixedly connected with a plurality of first scraping strips for cleaning the inner wall of the filter tank; each first scraping strip is spiral, and the lower end of each first scraping strip is fixedly connected with the adjacent first limiting rod; the upper side of the collector is fixedly connected with a plurality of second scraping strips for cleaning the inner wall of the filter tank.
The beneficial effects are that: the invention realizes that the water pressure of sewage entering the filter tank is controlled by the electromagnetic valve, so that the ultrafiltration membrane moves up and down in the filter tank, which is beneficial to the sewage to fully contact with the interior of the ultrafiltration membrane, prevents the low utilization rate of the filter membrane in the middle of the ultrafiltration membrane, improves the filtration efficiency of the sewage, and prolongs the service life of the ultrafiltration membrane;
the middle part of the ultrafiltration membrane is uniformly unfolded outwards through the elastic water bag, so that the ultrafiltration membrane is prevented from being compressed and bent towards one direction, the phenomenon that the ultrafiltration membrane cannot be unfolded normally is avoided, and the filtering effect of sewage is ensured;
the collector moves up and down in the filter tank to enable the sewage to carry impurities into the collection cavity, so that the impurities attached to the surface of the ultrafiltration membrane can be reduced;
the impurities in the sewage entering the collecting cavity are intercepted by the upper water inlet device with the bottom lower than the top of the collecting cavity and the lower water inlet device with the top higher than the lower part of the collecting cavity, so that the impurities in the sewage are prevented from flowing out of the collecting cavity, and the sewage filtering effect is further ensured;
the impurities entering the collecting cavity are intercepted by the filter screen and guided to the edge of the middle part of the inner side of the collecting cavity, so that the impurities in the collecting cavity can be conveniently and rapidly approaching to the drain pipe, the impurities attached to the filter screen in the collecting cavity are prevented from blocking the circulation of sewage above and below the collector, and the normal operation of discharging the impurities in the sewage is ensured;
the sewage in the collecting cavity is guided towards one side of the sewage drain pipe through the guide sheet, so that impurities in the collecting cavity are further enabled to quickly approach the sewage drain pipe, the impurities attached to the filter screen in the collecting cavity are prevented from blocking the circulation of the sewage above and below the collector, and the normal operation of discharging the impurities in the sewage is further ensured;
the inner wall of the filter tank is scraped and cleaned through the rotation of the first scraping strip and the second scraping strip, so that impurities in sewage are prevented from adhering to the inner wall of the filter tank, the sewage filtering effect is ensured, and the service life of the ultrafiltration membrane is further prolonged;
the first scraping bar is driven to lift up the collector through the first limiting rod, the torsion effect of the collector during up-and-down movement is enhanced, the throwing effect of impurities attached to the surface of the ultrafiltration membrane is further enhanced, the ultrafiltration membrane is fully contacted with sewage, and the filtering effect of the sewage is further guaranteed.
Drawings
FIG. 1 is a schematic diagram of a three-dimensional structure of an ultrafiltration membrane sewage filtration device of the invention;
FIG. 2 is a partial cross-sectional view of the present invention;
FIG. 3 is a schematic view of a combined three-dimensional structure of an ultrafiltration membrane, a water storage tank and a water diversion assembly of the invention;
FIG. 4 is a schematic perspective view of a first portion of the present invention;
FIG. 5 is a schematic view of a second partial perspective view of the present invention;
FIG. 6 is a schematic view of the combined three-dimensional structure of the ultrafiltration membrane and collection system of the present invention;
FIG. 7 is a partial cross-sectional view of the collection system of the present invention;
FIG. 8 is a schematic perspective view of a first combination of a collection system and an intercept guide system of the present invention;
FIG. 9 is a schematic perspective view of a second combination of a collection system and an intercept guide system of the present invention;
fig. 10 is a schematic perspective view showing a combination of a collection system, a first scraper bar and a second scraper bar according to the present invention.
Marked in the figure as: 1-filter tank, 1001-first limit tank, 1002-second limit tank, 1003-movable tank, 2-water inlet pipe, 3-water outlet pipe, 4-ultrafiltration membrane, 5-solenoid valve, 6-water reservoir, 7-first limit lever, 8-transmission pipe, 9-elastic water bag, 101-guide plate, 102-blade, 103-water collector, 201-collector, 20101-collecting cavity, 202-second limit lever, 203-upper water inlet, 204-lower water inlet, 205-blow off pipe, 206-baffle, 301-filter screen, 302-guide piece, 401-first scraping strip, 402-second scraping strip.
Detailed Description
The invention will be further described with reference to examples of embodiments shown in the drawings.
Example 1: as shown in fig. 3-5, an ultrafiltration membrane sewage filtering device comprises a filter tank 1, a water inlet pipe 2, a water outlet pipe 3, an ultrafiltration membrane 4 and an electromagnetic valve 5; a water inlet pipe 2 is arranged at the lower side of the filter tank 1; a water outlet pipe 3 is arranged on the upper side of the filter tank 1; an ultrafiltration membrane 4 is arranged in the filter tank 1; the water inlet pipe 2 is provided with an electromagnetic valve 5;
the device also comprises a water storage device 6, a first limiting rod 7, a water diversion component, a transmission pipe 8, an elastic water bag 9 and a collecting system; a water receiver 6 is arranged between the ultrafiltration membranes 4; the lower part of the inner side of the filter tank 1 is provided with a plurality of first limit grooves 1001 which are in an annular array; the lower part of the outer side of the ultrafiltration membrane 4 is provided with a plurality of first limiting rods 7 which are in annular arrays; each first limiting rod 7 is located in the corresponding first limiting groove 1001; the lower part of the inner side of the filter tank 1 is provided with a water diversion component; the middle part of the ultrafiltration membrane 4 is provided with a transmission pipe 8; two elastic water bags 9 are arranged on the transmission pipe 8; the outside of the water reservoir 6 is provided with a collecting system; the sewage water pressure in entering the filter tank 1 is controlled through the electromagnetic valve 5, so that sewage intermittently impacts the bottom of the ultrafiltration membrane 4, and then the ultrafiltration membrane 4 moves up and down in the filter tank 1, meanwhile, the sewage is spread out of the elastic water bag 9, the middle part of the ultrafiltration membrane 4 is evenly spread outwards, the sewage is fully contacted with the inside of the ultrafiltration membrane 4, the utilization rate of the filtration membrane in the middle part of the ultrafiltration membrane 4 is prevented from being low, the filtration efficiency of the sewage is improved, meanwhile, impurities in the sewage are prevented from accumulating on the surface of the ultrafiltration membrane 4 to reduce the filtration effect of the ultrafiltration membrane 4, and the service life of the ultrafiltration membrane 4 is prolonged while the filtration effect of the sewage is guaranteed.
The first limiting groove 1001 is configured to be inclined counterclockwise and upward first, and to be inclined clockwise and upward after being bent, based on the bottom-up view; the ultrafiltration membrane 4 is twisted and swung in the rising process through the first limit groove 1001, so that impurities attached to the surface of the ultrafiltration membrane 4 are thrown off, the surface of the ultrafiltration membrane 4 is fully contacted with sewage again, and the filtration efficiency of the sewage is further improved.
The diversion assembly comprises a guide plate 101 and a blade 102; two guide plates 101 are fixedly connected to the lower part of the inner side of the filter tank 1; each guide plate 101 is inclined upward; the bottom of the ultrafiltration membrane 4 is fixedly connected with a plurality of annular array blades 102; the guide plate 101 enables water flow entering the filter tank 1 to form vortex flow to impact the blades 102, the torsion effect of the lower part of the ultrafiltration membrane 4 in the rising process is enhanced through the blades 102, the required thrust is saved when the ultrafiltration membrane 4 is twisted, the throwing effect on impurities attached to the surface of the ultrafiltration membrane 4 is enhanced, and the filtration efficiency of sewage is further improved.
The water diversion assembly also comprises a water collector 103; the bottom of the transmission pipe 8 is fixedly connected with a water collector 103, and the water collector 103 is in a shape of a truncated cone which is communicated up and down; water flow entering the filter tank 1 is concentrated through the water collector 103, and is transmitted to the inside of the elastic water bag 9 through the transmission pipe 8, so that the expansion effect of the elastic water bag 9 is enhanced, the expansion effect of the middle part of the ultrafiltration membrane 4 is enhanced, sewage is fully contacted with the inside of the ultrafiltration membrane 4, the utilization rate of the filtration membrane in the middle part of the ultrafiltration membrane 4 is prevented from being low, and the filtration efficiency of the sewage is further improved.
The specific process for improving the sewage filtering efficiency of the invention is as follows:
when filtering sewage, sewage enters the filter tank 1 through the water inlet pipe 2, after the sewage enters the filter tank 1, the water flow entering the filter tank 1 forms a vortex flow through the guide plate 101, then the vortex flow impacts the blades 102, the ultrafiltration membrane 4 moves up and down in the filter tank 1 through the impact force of the water flow, because the first limit groove 1001 is arranged to be inclined upwards anticlockwise firstly, the ultrafiltration membrane 4 is driven to move upwards in the first limit groove 1001 through the first limit rod 7 after bending, the ultrafiltration membrane 4 rotates anticlockwise firstly in the rising process and then rotates clockwise, the membrane filaments of the ultrafiltration membrane 4 twist and whip in the sewage, which is beneficial to throwing off impurities attached to the surface of the ultrafiltration membrane 4, is beneficial to the sewage to fully contact with the membrane filaments in the middle of the ultrafiltration membrane 4, the membrane filaments in the middle of the ultrafiltration membrane 4 are prevented from being low in utilization rate, the filtering efficiency of the sewage is improved, simultaneously, the reduction of the filtering effect of the ultrafiltration membrane 4 caused by the accumulation of impurities in the sewage on the surface of the ultrafiltration membrane 4 is avoided, the filtering effect of the sewage is ensured, the middle part of the ultrafiltration membrane 4 is outwards unfolded after rising, the water flow entering the filter tank 1 is concentrated through the water collector 103, the water flow is transmitted to the inside of the two elastic water bags 9 by the transmission pipe 8, the elastic water bags 9 are fully expanded, the unfolding effect of the middle part of the ultrafiltration membrane 4 is further enhanced, the ultrafiltration membrane 4 is prevented from being compressed and bent towards one direction, the abnormal unfolding of the ultrafiltration membrane 4 is avoided, the filtering effect of the sewage is ensured, the water pressure of the sewage entering the filter tank 1 is controlled by the electromagnetic valve 5, the sewage intermittently impacts the bottom of the ultrafiltration membrane 4, when the water pressure is high, the middle part of the ultrafiltration membrane 4 is outwards unfolded through the water collector 103, when the water pressure is low, the lower part of the ultrafiltration membrane 4 is twisted and descends for resetting, the filtered water flow is discharged to the outside of the filter tank 1 through the water outlet pipe 3, so that the service life of the ultrafiltration membrane 4 is prolonged while the sewage filtering effect is guaranteed.
Example 2: on the basis of the embodiment 1, as shown in fig. 6 and 7, the collecting system comprises a collector 201, a second limiting rod 202, an upper water inlet 203, a lower water inlet 204, a drain pipe 205 and a baffle 206; the collector 201 is fixedly connected to the outer side of the water receiver 6; the outer side of the collector 201 is attached to the inner wall of the filter tank 1, and the collector 201 divides the interior of the filter tank 1 into an upper chamber and a lower chamber; a collecting cavity 20101 is formed in the collector 201; the middle part of the inner side of the filter tank 1 is provided with a plurality of second limiting grooves 1002 which are in an annular array; a plurality of second limiting rods 202 which are in an annular array are fixedly connected to the upper side of the collector 201; each second stop bar 202 is located in a corresponding second stop slot 1002; a plurality of upper water inlets 203 in a ring array are fixedly connected to the upper side of the collector 201; each upper water inlet 203 is communicated with the collection cavity 20101, and the bottom of the upper water inlet 203 is lower than the top of the collection cavity 20101, so that impurities in sewage are prevented from flowing out from the upper part in the collection cavity 20101; a plurality of lower water inlet devices 204 which are in an annular array are fixedly connected to the lower side of the collector 201; each lower water inlet 204 is communicated with the collection cavity 20101, and the top of the lower water inlet 204 is higher than the lower part of the collection cavity 20101, so that impurities in sewage are prevented from flowing out from the lower part in the collection cavity 20101; a drain pipe 205 is communicated with the outer side of the collector 201, and the drain pipe 205 penetrates through the side wall of the filter tank 1; the filter tank 1 is provided with a movable groove 1003; a baffle 206 is fixedly connected to the drain pipe 205; the baffle 206 is positioned in the movable groove 1003; through sewage intermittent type nature impact collector 201, make collector 201 reciprocate in filter canister 1 inside, stir sewage, and then make sewage carry impurity get into in collecting cavity 20101, be favorable to reducing the impurity that is attached to the milipore filter 4 surface, through last water inlet 203 and lower water inlet 204, intercept the impurity in the sewage that gets into in collecting cavity 20101, prevent that impurity in the sewage from flowing out in collecting cavity 20101, further ensured the sewage filter effect.
Based on the bottom-up view, the second limiting groove 1002 is set to be inclined clockwise and upwards, and is inclined anticlockwise and upwards after being bent, and the bending angle of the second limiting groove 1002 is smaller than that of the first limiting groove 1001; the collector 201 is twisted and swung in the rising process through the second limiting groove 1002, so that impurities attached to the surface of the ultrafiltration membrane 4 on the upper side of the collector 201 are thrown off, the ultrafiltration membrane 4 on the upper side of the collector 201 is fully contacted with sewage, and the filtering effect of the sewage is guaranteed.
The upper water inlet 203 is arranged in a funnel shape; the lower water inlet 204 is arranged in an inverted funnel shape; the sewage is favorable for carrying impurities into the collecting cavity 20101 fully, and meanwhile, impurities in the sewage are prevented from flowing out of the collecting cavity 20101 through the upper water inlet device 203 and the lower water inlet device 204, so that the sewage filtering effect is further guaranteed.
The specific process for collecting impurities in the invention is as follows:
when the water pressure is big, the water pressure is upwards impacted with the collector 201 when upwards impacting the milipore filter 4, because the second spacing groove 1002 is set to be clockwise upward slope earlier, anticlockwise upward slope form after buckling, at the upward mobile in-process of collector 201, drive the collector 201 at the upward mobile in-process of second spacing groove 1002 through the second spacing rod 202, make the collector 201 clockwise rotation earlier in the ascending process, then anticlockwise rotation carries out, and then make the collector 201 drive the membrane silk of the milipore filter 4 of collector 201 upside in the sewage twist and whip, and then be favorable to getting rid of the impurity that is attached to the milipore filter 4 surface of collector 201 upside, the middle part outwards expands after the milipore filter 4 risen, be favorable to sewage fully with milipore filter 4 internal contact, because the second spacing groove 1002 is opposite with the direction of activity of first spacing groove 1001, prevent that the milipore filter 4 torsion amplitude of collector 201 downside from reducing, the effect of the surperficial impurity of milipore filter 4 of collector 201 downside, simultaneously, because the angle of second spacing groove 1002 is less than the angle of first spacing groove 1001, the buckling of the milipore filter 1002 is less than the first spacing groove's 1001, the unable guarantee that the sewage is perpendicular spacing filter 4 is fully expanded with the milipore filter 4 side of the activity groove 201, the normal filter effect of milipore filter 201 has been avoided.
When the collector 201 is twisted upwards, the sewage above the collector 201 is extruded by the collector 201, so that the sewage above the collector 201 enters the collecting cavity 20101 through the funnel-shaped upper water inlet 203, meanwhile, the sewage in the collecting cavity 20101 is discharged to the lower part of the collector 201 through the lower water inlet 204, the impurities in the sewage are intercepted through the lower water inlet 204 with the top higher than the lower part of the collecting cavity 20101, the impurities in the sewage are prevented from flowing out from the lower part of the collecting cavity 20101 through the lower water inlet 204, when the collector 201 is twisted downwards and reset, the sewage below the collector 201 is extruded by the collector 201, so that the sewage below the collector 201 enters the collecting cavity 20101 through the lower water inlet 204 with the shape of an inverted funnel, meanwhile, the sewage in the collection cavity 20101 is discharged to the upper side of the collector 201 through the upper water inlet device 203, the impurities in the sewage are intercepted through the upper water inlet device 203 with the bottom lower than the top of the collection cavity 20101, the impurities in the sewage are prevented from flowing out of the upper part in the collection cavity 20101 through the upper water inlet device 203, the collection effect of the collector 201 on the impurities in the sewage is guaranteed, the impurities attached to the surface of the ultrafiltration membrane 4 are reduced, the sewage filtering effect is further guaranteed, the impurities collected in the sewage in the collector 201 naturally flow out through the drain pipe 205, the drain pipe 205 is driven by the collector 201 to move in the process of simultaneously driving the baffle 206, the side wall of the filter tank 1 is blocked through the baffle 206, and the sewage is prevented from flowing out of the side wall of the filter tank 1.
Example 3: on the basis of the embodiments 1 and 2, as shown in fig. 1, 2 and 8-10, an interception guiding system is further included, and the interception guiding system includes a filter screen 301; two filter screens 301 which are symmetrical up and down are fixedly connected in a collecting cavity 20101 on the collector 201; taking the outer side of the collector 201 as a reference to the middle part of the collector 201, the filter screen 301 positioned at the upper part of the inner side of the collecting cavity 20101 is gradually inclined upwards, and the filter screen 301 positioned at the lower part of the inner side of the collecting cavity 20101 is gradually inclined downwards; the impurity entering the collecting cavity 20101 is intercepted by the filter screen 301 and guided to the inner side edge of the collecting cavity 20101, so that the impurity in the collecting cavity 20101 is beneficial to quickly approaching to the sewage discharge pipe 205, the impurity attached to the filter screen 301 in the collecting cavity 20101 is prevented from blocking the circulation of sewage above and below the collector 201, and the normal operation of discharging the impurity in the sewage is ensured.
The interception guidance system further comprises a guidance piece 302; a plurality of guide plates 302 are fixedly connected in a collection cavity 20101 on the collector 201; each guide piece 302 is provided in an inclined shape toward the middle of the front side of the collection chamber 20101 along the inner wall of the collection chamber 20101, as viewed from the back to the front; the sewage in the collecting cavity 20101 is guided towards one side of the sewage draining pipe 205 through the guiding sheet 302, impurities in the collecting cavity 20101 are further enabled to quickly approach the sewage draining pipe 205, the impurities attached to the filter screen 301 in the collecting cavity 20101 are prevented from blocking the circulation of the sewage above and below the collector 201, and the normal operation of discharging the impurities in the sewage is further guaranteed.
Also included are a first wiper strip 401 and a second wiper strip 402; a plurality of first scraping strips 401 which are in an annular array are fixedly connected to the lower side of the collector 201; each first scraping strip 401 is spiral, and the lower end of each first scraping strip 401 is fixedly connected with the adjacent first limiting rod 7; a plurality of second scraping strips 402 which are in an annular array are fixedly connected to the upper side of the collector 201; the inner wall of the filter tank 1 is scraped and cleaned through the rotation of the first scraping strip 401 and the second scraping strip 402, impurities in sewage are prevented from being continuously attached to the inner wall of the filter tank 1, the filtering effect of the sewage is guaranteed, meanwhile, the service life of the ultrafiltration membrane 4 is further prolonged, secondly, the collector 201 is pushed upwards when the first scraping strip 401 is driven to ascend through the first limiting rod 7, the torsion effect of the collector 201 during the up-and-down movement is enhanced, the throwing effect of the impurities attached to the surface of the ultrafiltration membrane 4 is further enhanced, the ultrafiltration membrane 4 is fully contacted with the sewage, and the filtering effect of the sewage is further guaranteed.
The specific process of intercepting and guiding impurities is as follows:
after sewage enters the collecting cavity 20101, impurities in the sewage are intercepted through the filter screen 301, when the collector 201 moves upwards, the sewage enters the collecting cavity 20101 through the upper water inlet 203, the impurities attached to the surface of the upper filter screen 301 on the inner side of the collecting cavity 20101 are flushed towards the inner side edge of the collecting cavity 20101, when the collector 201 moves downwards, the sewage enters the collecting cavity 20101 through the lower water inlet 204, the impurities attached to the surface of the lower filter screen 301 on the inner side of the collecting cavity 20101 are flushed towards the inner side edge of the collecting cavity 20101, in the process of flushing the filter screen 301 with the sewage, the sewage in the collecting cavity 20101 is guided towards the side of the sewage drain pipe 205 through the guide piece 302, the impurities in the collecting cavity 20101 are facilitated to be close to the sewage pipe 205, the impurities attached to the filter screen 301 in the collecting cavity 20101 are prevented from blocking circulation of the upper side and lower sewage, and normal draining of the impurities in the sewage is guaranteed.
When the collector 201 is twisted upwards to move, the first scraping strip 401 and the second scraping strip 402 are driven to rotate and expand in the filter tank 1, so that the first scraping strip 401 and the second scraping strip 402 are tightly attached to the inner wall of the filter tank 1, the collector 201 drives the first scraping strip 401 and the second scraping strip 402 to rotate to scrape and clean the inner wall of the filter tank 1, impurities in sewage are prevented from continuously attaching on the inner wall of the filter tank 1, the filtering effect of the sewage is guaranteed, meanwhile, the service life of the ultrafiltration membrane 4 is further prolonged, the collector 201 is pushed upwards when the first scraping strip 401 is driven to lift by the first limiting rod 7, the twisting effect when the collector 201 moves up and down is enhanced, the throwing effect of impurities attached to the surface of the ultrafiltration membrane 4 is further enhanced, the ultrafiltration membrane 4 is fully contacted with the sewage, and the filtering effect of the sewage is further guaranteed.
It should be understood that this example is only illustrative of the invention and is not intended to limit the scope of the invention. Further, it is understood that various changes and modifications may be made by those skilled in the art after reading the teachings of the present invention, and such equivalents are intended to fall within the scope of the claims appended hereto.
Claims (7)
1. An ultrafiltration membrane sewage filtering device comprises a filtering tank (1), a water inlet pipe (2), a water outlet pipe (3), an ultrafiltration membrane (4) and an electromagnetic valve (5); a water inlet pipe (2) is arranged at the lower side of the filter tank (1); a water outlet pipe (3) is arranged on the upper side of the filter tank (1); an ultrafiltration membrane (4) which is used for filtering sewage and is convenient to detach is arranged in the filter tank (1); the water inlet pipe (2) is provided with an electromagnetic valve (5) for controlling water pressure; the device is characterized by further comprising a water receiver (6), a first limiting rod (7), a water diversion assembly, a transmission pipe (8), an elastic water bag (9) and a collecting system; a water receiver (6) is arranged between the ultrafiltration membranes (4); a plurality of first limit grooves (1001) are formed in the inner side of the filter tank (1); a plurality of first limiting rods (7) are arranged on the outer side of the ultrafiltration membrane (4); each first limiting rod (7) is positioned in the corresponding first limiting groove (1001); a diversion component for guiding water flow is arranged at the inner side of the filter tank (1); a transmission pipe (8) for transmitting water flow is arranged in the middle of the ultrafiltration membrane (4); a plurality of elastic water bags (9) for stretching the ultrafiltration membrane (4) are arranged on the transmission pipe (8); the outside of the water receiver (6) is provided with a collecting system for collecting impurities in the sewage;
the first limiting groove (1001) is arranged to be inclined anticlockwise upwards firstly and inclined clockwise upwards after being bent by taking a view from bottom to top as a reference; the ultrafiltration membrane (4) is driven to move upwards in the first limit groove (1001) through the first limit rod (7), so that the ultrafiltration membrane (4) rotates anticlockwise in the ascending process, and then rotates clockwise, so that membrane wires of the ultrafiltration membrane (4) twist and swing in sewage, impurities attached to the surface of the ultrafiltration membrane (4) are thrown off, sewage is fully contacted with the membrane wires in the middle of the ultrafiltration membrane (4), the membrane wires in the middle of the ultrafiltration membrane (4) are prevented from being low in utilization rate, and the filtration efficiency of the sewage is improved;
the diversion assembly comprises a guide plate (101) and blades (102); the lower part of the inner side of the filter tank (1) is fixedly connected with a plurality of guide plates (101) for guiding water flow; each guide plate (101) is inclined upwards; the bottom of the ultrafiltration membrane (4) is fixedly connected with a plurality of blades (102) for enhancing the torsion effect of the ultrafiltration membrane (4);
the water diversion assembly also comprises a water collector (103); the bottom of the transmission pipe (8) is fixedly connected with a water collector (103) for guiding water flow, and the water collector (103) is in a shape of a truncated cone which is communicated up and down.
2. The ultrafiltration membrane sewage filtering device according to claim 1, wherein the collecting system comprises a collector (201), a second limiting rod (202), an upper water inlet device (203), a lower water inlet device (204), a drain pipe (205) and a baffle plate (206); the outer side of the water receiver (6) is fixedly connected with a collector (201) for collecting impurities in the sewage; the outer side of the collector (201) is attached to the inner wall of the filter tank (1), and the collector (201) divides the interior of the filter tank (1) into an upper chamber and a lower chamber; a collecting cavity (20101) for storing impurities in the sewage is formed in the collector (201); a plurality of second limit grooves (1002) are formed in the inner side of the filter tank (1); a plurality of second limiting rods (202) are fixedly connected to the upper side of the collector (201); each second limiting rod (202) is positioned in the corresponding second limiting groove (1002); a plurality of upper water inlet devices (203) are fixedly connected to the upper side of the collector (201); each upper water inlet device (203) is communicated with the collection cavity (20101), and the bottom of the upper water inlet device (203) is lower than the top of the collection cavity (20101); a plurality of lower water inlet devices (204) are fixedly connected to the lower side of the collector (201); each lower water inlet device (204) is communicated with the collection cavity (20101), and the top of the lower water inlet device (204) is higher than the lower part of the collection cavity (20101); a drain pipe (205) for discharging impurities in the collecting cavity (20101) is communicated with the outer side of the collector (201), and the drain pipe (205) penetrates through the side wall of the filter tank (1); a movable groove (1003) is formed in the filter tank (1); a baffle (206) for preventing sewage from flowing out of the filter tank (1) is fixedly connected to the sewage discharge pipe (205); the baffle (206) is positioned in the movable groove (1003).
3. The ultrafiltration membrane sewage filtering apparatus according to claim 2, wherein the second limiting groove (1002) is provided to be inclined clockwise upward first, and is inclined counterclockwise upward after being bent, based on a bottom-up view, and a bending angle of the second limiting groove (1002) is smaller than a bending angle of the first limiting groove (1001); the collector (201) is driven to move upwards in the second limiting groove (1002) through the second limiting rod (202), so that the collector (201) rotates clockwise firstly in the ascending process and then rotates anticlockwise, further the collector (201) drives membrane wires of the ultrafiltration membrane (4) on the upper side of the collector (201) to twist and swing in sewage, impurities attached to the surface of the ultrafiltration membrane (4) on the upper side of the collector (201) are favorable to throwing off, and meanwhile the middle part of the ultrafiltration membrane (4) on the lower side of the collector (201) is prevented from being unable to be normally unfolded, the middle part of the ultrafiltration membrane (4) on the lower side of the collector (201) is prevented from being unable to be fully contacted with sewage, and the filtering effect of sewage is guaranteed.
4. An ultrafiltration membrane sewage filtration apparatus according to claim 2, wherein the upper water inlet (203) is provided in a funnel shape; the lower water inlet device (204) is arranged in an inverted funnel shape.
5. An ultrafiltration membrane sewage filtration apparatus according to claim 2, further comprising an interception guidance system comprising a screen (301); a plurality of filter screens (301) for intercepting impurities in the collecting cavity (20101) are fixedly connected in the collecting cavity (20101) on the collector (201); the filter screen (301) positioned at the upper part of the inner side of the collecting cavity (20101) is gradually inclined upwards based on the condition that the outer side of the collector (201) is toward the middle part of the collector (201), and the filter screen (301) positioned at the lower part of the inner side of the collecting cavity (20101) is gradually inclined downwards.
6. The ultrafiltration membrane wastewater filtration apparatus of claim 5, wherein the interception and guidance system further comprises a guide plate (302); a plurality of guide sheets (302) for guiding impurities in the sewage are fixedly connected in a collection cavity (20101) on the collector (201); each guide piece (302) is arranged in an inclined shape toward the middle of the front side of the collection cavity (20101) along the inner wall of the collection cavity (20101) based on the back-to-front view.
7. The ultrafiltration membrane wastewater filtration apparatus of claim 6, further comprising a first scraper bar (401) and a second scraper bar (402); the lower side of the collector (201) is fixedly connected with a plurality of first scraping strips (401) for cleaning the inner wall of the filter tank (1); each first scraping strip (401) is spiral, and the lower end of each first scraping strip (401) is fixedly connected with the adjacent first limiting rod (7); the upper side of the collector (201) is fixedly connected with a plurality of second scraping strips (402) for cleaning the inner wall of the filter tank (1).
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| CN202311463282.4A CN117185424B (en) | 2023-11-06 | 2023-11-06 | Ultrafiltration membrane sewage filtering device |
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| CN202311463282.4A CN117185424B (en) | 2023-11-06 | 2023-11-06 | Ultrafiltration membrane sewage filtering device |
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| CN117185424B true CN117185424B (en) | 2024-02-13 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN207805392U (en) * | 2017-12-18 | 2018-09-04 | 太阳雨集团有限公司 | A kind of campaign-styled auto-flushing ultrafiltration membrane filter device |
| CN218688166U (en) * | 2022-11-01 | 2023-03-24 | 德博尔(成都)生物科技有限公司 | Ultra-filtration tank |
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| GB0316560D0 (en) * | 2003-07-15 | 2003-08-20 | Chiron Srl | Vesicle filtration |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN207805392U (en) * | 2017-12-18 | 2018-09-04 | 太阳雨集团有限公司 | A kind of campaign-styled auto-flushing ultrafiltration membrane filter device |
| CN218688166U (en) * | 2022-11-01 | 2023-03-24 | 德博尔(成都)生物科技有限公司 | Ultra-filtration tank |
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