CN116688759B - Ultrafiltration membrane with air pressure adjusting function - Google Patents
Ultrafiltration membrane with air pressure adjusting function Download PDFInfo
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- CN116688759B CN116688759B CN202310982097.XA CN202310982097A CN116688759B CN 116688759 B CN116688759 B CN 116688759B CN 202310982097 A CN202310982097 A CN 202310982097A CN 116688759 B CN116688759 B CN 116688759B
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- shell
- ultrafiltration membrane
- sliding sleeve
- assembly
- liquid
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- 239000012528 membrane Substances 0.000 title claims abstract description 92
- 238000000108 ultra-filtration Methods 0.000 title claims abstract description 91
- 239000010865 sewage Substances 0.000 claims abstract description 62
- 239000007788 liquid Substances 0.000 claims abstract description 52
- 238000003756 stirring Methods 0.000 claims abstract description 33
- 238000002347 injection Methods 0.000 claims abstract description 32
- 239000007924 injection Substances 0.000 claims abstract description 32
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 24
- 230000003139 buffering effect Effects 0.000 claims abstract description 7
- 238000007789 sealing Methods 0.000 claims description 6
- 230000001276 controlling effect Effects 0.000 claims description 3
- 230000000712 assembly Effects 0.000 claims description 2
- 238000000429 assembly Methods 0.000 claims description 2
- 238000005507 spraying Methods 0.000 claims description 2
- 230000001105 regulatory effect Effects 0.000 claims 5
- 230000008878 coupling Effects 0.000 claims 4
- 238000010168 coupling process Methods 0.000 claims 4
- 238000005859 coupling reaction Methods 0.000 claims 4
- 238000003825 pressing Methods 0.000 claims 1
- 239000012535 impurity Substances 0.000 abstract description 22
- 230000000694 effects Effects 0.000 abstract description 5
- 238000000746 purification Methods 0.000 abstract description 5
- 238000000926 separation method Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 14
- 238000001914 filtration Methods 0.000 description 5
- 230000006870 function Effects 0.000 description 4
- 230000002035 prolonged effect Effects 0.000 description 3
- 239000008213 purified water Substances 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 238000007667 floating Methods 0.000 description 2
- 230000003116 impacting effect Effects 0.000 description 2
- 230000009711 regulatory function Effects 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
- B01D61/14—Ultrafiltration; Microfiltration
- B01D61/18—Apparatus therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
- B01D61/14—Ultrafiltration; Microfiltration
- B01D61/145—Ultrafiltration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
- B01D61/14—Ultrafiltration; Microfiltration
- B01D61/22—Controlling or regulating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D65/00—Accessories or auxiliary operations, in general, for separation processes or apparatus using semi-permeable membranes
- B01D65/02—Membrane cleaning or sterilisation ; Membrane regeneration
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/444—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by ultrafiltration or microfiltration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2321/00—Details relating to membrane cleaning, regeneration, sterilization or to the prevention of fouling
- B01D2321/10—Use of feed
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2321/00—Details relating to membrane cleaning, regeneration, sterilization or to the prevention of fouling
- B01D2321/18—Use of gases
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2321/00—Details relating to membrane cleaning, regeneration, sterilization or to the prevention of fouling
- B01D2321/20—By influencing the flow
- B01D2321/2033—By influencing the flow dynamically
- B01D2321/2041—Mixers; Agitators
Abstract
The invention discloses an ultrafiltration membrane with an air pressure adjusting function, and relates to the technical field of ultrafiltration membranes. Aiming at the problem that impurities adhere to the surface of an ultrafiltration membrane, the pressure in a filter cavity is increased due to the fact that the water flow of the ultrafiltration membrane is reduced, and the adhesion between the impurities and the ultrafiltration membrane is enhanced. The invention comprises a shell, wherein the shell is provided with a cover, the lower side of the cover is provided with an ultrafiltration membrane wire, the shell is provided with an air injection pipe, a liquid stirring assembly and a fluctuation assembly are arranged in the shell, the liquid stirring assembly is provided with an intermittent air injection assembly, and the fluctuation assembly is provided with a swinging assembly. According to the invention, the air injection pipe injects air into the shell to pressurize, so that the relative stability of the water purification discharge rate is realized, the liquid stirring assembly, the fluctuation assembly and the swinging assembly are matched, the effect that sewage in the shell is in turbulent flow to wash the ultrafiltration membrane wire on the cover is achieved, the intermittent air injection assembly is used for accelerating the impurity separation on the ultrafiltration membrane wire, the speed of sewage passing through the ultrafiltration membrane wire is improved, and the buffer flow guide assembly is used for buffering sewage, so that the effect of protecting the ultrafiltration membrane wire is achieved.
Description
Technical Field
The invention relates to the technical field of ultrafiltration membranes, in particular to an ultrafiltration membrane with an air pressure adjusting function.
Background
The ultrafiltration membrane is a high molecular semipermeable membrane which separates high molecular colloid or suspended particles with a certain size from a solution.
When the ultrafiltration membrane filters sewage, sewage flows through the ultrafiltration membrane to enable impurities to be attached to the surface of the ultrafiltration membrane, the impurities gather on the surface of the ultrafiltration membrane to block micropores on the ultrafiltration membrane, so that the sewage cannot pass through the ultrafiltration membrane, the speed of the sewage passing through the ultrafiltration membrane is reduced, the clean water discharge rate of the ultrafiltration membrane is gradually lowered, after the ultrafiltration membrane is completely blocked, the ultrafiltration membrane is required to be cleaned by stopping the filtration process, so that the working efficiency of the ultrafiltration membrane is low, meanwhile, in the working process of the water pump, the pressure of the sewage is increased in the filter cavity due to the accumulation of the impurities attached to the ultrafiltration membrane, although the pressure increase can increase the filtration water efficiency of the ultrafiltration membrane, the attachment of the impurities to the ultrafiltration membrane is further enhanced, the comprehensive speed of the sewage is reduced along with the continuous attachment of the impurities, and the clean water discharge rate is reduced.
Aiming at the defects of the prior art, an ultrafiltration membrane with an air pressure adjusting function is developed to meet the requirement of actual use.
Disclosure of Invention
In order to overcome the defects in the prior art, the problems that impurities are directly attached to the surface of an ultrafiltration membrane in the process of flowing liquid through the ultrafiltration membrane, so that the filtration effect of the ultrafiltration membrane is poor, the pressure in a filter cavity is increased due to the fact that the water flow rate of the ultrafiltration membrane is reduced, the adhesion of the impurities and the ultrafiltration membrane is enhanced, and the water purification discharge rate is low are solved, and the ultrafiltration membrane with the air pressure adjusting function is provided.
The technical scheme adopted for solving the technical problems is as follows: the utility model provides an milipore filter with atmospheric pressure regulatory function, which comprises a housin, the one end of casing is equipped with the feed liquor pipe, upper and lower two parts of shells inner wall all are equipped with the bulge loop that is used for spacing, the lid is installed to the other end of casing, one side of lid and casing laminating evenly is provided with milipore filter silk, milipore filter silk outside is equipped with the tightening net that is used for tightening up together, the opposite side of lid is equipped with the fluid-discharge tube, the fluid-discharge tube of lid and its upper milipore filter silk intercommunication, and be equipped with flow sensor in the fluid-discharge tube of lid, control panel is installed to the casing lateral wall, the lower part of casing has the gas injection pipe through circumference even stand pipe intercommunication, and be equipped with the check valve in the stand pipe, the gas injection pipe is equipped with the booster pump, the booster pump is used for exerting pressure in making the liquid discharge rate of fluid-discharge tube stable in the casing, be equipped with liquid stirring subassembly and fluctuation subassembly in the casing, liquid stirring subassembly is used for stirring liquid in the casing from top to bottom, the liquid stirring subassembly is equipped with the gas injection subassembly that is used for controlling gas intermittent type entering in the casing on the fluctuation subassembly, be equipped with the intermittent type in the fluctuation subassembly and is used for reciprocating stirring the swing subassembly in the casing liquid in the fluid-discharge tube, make the casing in the fluid form the indiscriminate flow in the casing and the upper liquid flushing the lid.
More preferably, the liquid stirring assembly comprises a rotating sleeve, the rotating sleeve is rotationally arranged in the shell, the rotating sleeve is positioned below the convex ring at the lower side of the shell, symmetrical through holes are formed in the lower portion of the rotating sleeve, the through holes are alternately communicated with the guide pipe of the gas injection pipe, the lower end of the rotating sleeve is fixedly connected with an impeller through a supporting frame, and guide grooves are formed in the circumferential direction of the inner wall of the rotating sleeve at equal intervals.
More preferably, the fluctuation assembly comprises a sliding sleeve, the sliding sleeve is in spline connection between convex rings of the shell, the diameter of the middle part of the sliding sleeve is wider than the diameters of two ends of the sliding sleeve, the convex rings of the shell are used for limiting the movement of the sliding sleeve, the lower part of the sliding sleeve is matched with the rotating sleeve, the lower end of the sliding sleeve is provided with a triangular sealing ring, the triangular sealing ring is used for improving the tightness between the sliding sleeve and the rotating sleeve, the side wall of the lower part of the sliding sleeve is provided with a convex column matched with a guide groove, the upper part and the lower part of the sliding sleeve are fixedly connected with a fixed ring respectively, and the upper end and the lower end of the fixed ring are provided with first baffle plates for separating bubbles at equal circumferential intervals.
More preferably, the upper and lower ends of the inner wall of the fixing ring are symmetrically provided with round table-shaped surfaces for pushing the liquid to gather inwards.
More preferably, the guide grooves are formed in a closed loop in a surrounding manner, and each guide groove section is formed by combining two symmetrical inclined grooves and a horizontal groove and is used for intermittent up-and-down reciprocating movement of the sliding sleeve.
More preferably, the intermittent gas injection assembly comprises a second baffle plate, the second baffle plate is fixedly connected in the through hole, holes for uniformly forming bubbles are uniformly formed in the second baffle plate, a fixed shell is fixedly connected on the inner wall of the rotating sleeve through a supporting block, a sliding rod is arranged on the fixed shell in a sliding mode, a first spring is arranged between the sliding rod and the fixed shell, a third baffle plate is arranged at the upper end of the sliding rod, the third baffle plate is matched with the holes of the second baffle plate, and the upper end of the third baffle plate is matched with the sliding sleeve in a contact mode.
More preferably, the holes on the second baffle plate are in a truncated cone shape for improving the gas spraying distance.
More preferably, the swinging component comprises a rotating ring, convex rings are symmetrically arranged in the middle of the inner wall of the sliding sleeve, the rotating ring is rotationally arranged between the convex rings which are symmetrically arranged on the sliding sleeve, the cross section of the inner wall of the rotating ring is trapezoid, rotating plates are circumferentially equidistant on the inner wall of the sliding sleeve and are rotationally connected with the sliding sleeve, and inclined plates are fixedly connected at equal intervals at the upper end and the lower end of the sliding sleeve.
More preferably, the inclined plates on the upper side and the lower side are arranged in a staggered manner, so as to improve the contact area between the inclined plates and the liquid along the axis direction of the shell.
More preferably, the device further comprises a buffering flow guiding component, wherein the supporting frame of the impeller is provided with the buffering flow guiding component for reducing the impact force of sewage, the buffering flow guiding component comprises a supporting plate with circumferential symmetry, the supporting plate with circumferential symmetry is fixedly connected on the supporting frame of the impeller, the upper end of the supporting plate with circumferential symmetry is fixedly connected with a fixed block, the circumferential equidistance of the fixed block is provided with a first inclined hole, the spline of the fixed block is connected with a sliding block, the circumferential equidistance of the sliding block is provided with a second inclined hole, a second spring is arranged between the fixed block and the sliding block, the first inclined holes and the second inclined holes are arranged in a staggered manner and used for guiding and diverting sewage, and the outer side walls of the fixed block and the sliding block are in an inverted truncated cone shape.
Compared with the prior art, the invention has the following technical effects: according to the invention, the air injection pipe is used for injecting air into the shell to pressurize, so that the sewage passes through the ultrafiltration membrane wire on the cover, the discharge rate of purified water is ensured, the liquid stirring assembly is matched with the fluctuation assembly, the sliding sleeve and the fixed ring are made to reciprocate up and down in an intermittent mode, the sewage in the shell is stirred up and down in an intermittent mode, the rotating ring and the rotating plate are combined to reciprocate in the swinging assembly, the sewage in the shell is stirred up and down in a circumferential mode, the effect that the sewage in the shell is eroded by turbulent flow of the ultrafiltration membrane wire on the cover is achieved, the attachment amount of impurities on the ultrafiltration membrane wire is reduced, the working time of the ultrafiltration membrane wire is prolonged indirectly, the third baffle in the intermittent air injection assembly is used for shielding the through hole in an intermittent mode, the circumferential intermittent mode is added into the shell, the bubbles are made to reciprocate in the shell to penetrate the ultrafiltration membrane wire, the impurity on the ultrafiltration membrane wire is accelerated, the speed of the ultrafiltration membrane wire is increased, the sewage entering the shell is guided and split by the fixed block and the sliding block, the sewage is guided and split by the buffer flow guide assembly, and the sewage is prevented from directly impacting the ultrafiltration membrane wire.
Drawings
Fig. 1 is a schematic perspective view of the present invention.
Fig. 2 is a partial cross-sectional view of a three-dimensional structure of the present invention.
Fig. 3 is a cross-sectional view of the rotating sleeve of the present invention.
FIG. 4 is a partial cross-sectional view of an intermittent gas injection assembly of the present invention.
Fig. 5 is a partial cross-sectional view of the swing assembly of the present invention.
FIG. 6 is a partial cross-sectional view of a buffer deflector assembly of the present invention.
In the above figures: 1. the device comprises a shell, 2, a cover, 3, a control panel, 4, an air injection pipe, 5, a rotating sleeve, 6, a through hole, 7, an impeller, 8, a guide groove, 9, a sliding sleeve, 10, a fixed ring, 11, a first baffle plate, 12, a second baffle plate, 13, a fixed shell, 14, a sliding rod, 15, a first spring, 16, a third baffle plate, 17, a rotating ring, 18, a rotating plate, 19, an inclined plate, 20, a supporting plate, 21, a fixed block, 22, a first inclined hole, 23, a sliding block, 24, a second inclined hole, 25 and a second spring.
Detailed Description
In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the drawings of the embodiments will be briefly described below, and it is apparent that the drawings in the following description relate only to some embodiments of the present disclosure, not to limit the present disclosure.
Example 1: the utility model provides an ultrafiltration membrane with atmospheric pressure regulatory function, refer to the fig. 1-6 and show, including casing 1, the lower extreme intercommunication of casing 1 has the feed liquor pipe, the upper and lower both parts of casing 1 inner wall all are equipped with the bulge loop that is used for spacing, the upper end bolted connection of casing 1 has lid 2, the downside evenly is provided with the ultrafiltration membrane silk, the ultrafiltration membrane silk outside is equipped with the tightening net that is used for tightening up together, avoid the ultrafiltration membrane silk to take place the damage in casing 1, the upside is equipped with the fluid-discharge tube, the fluid-discharge tube communicates with its upper ultrafiltration membrane silk, and be equipped with the flow sensor who is used for detecting the water purification discharge rate in the fluid-discharge tube, control panel 3 is installed to casing 1 lateral wall, six stand pipes intercommunication that are equipped with the gas injection tube 4 of circumference are even to casing 1 lower part, and be equipped with the check valve in the stand pipe, gas injection tube 4 is equipped with the booster pump, along with the sewage flow through the ultrafiltration membrane silk on lid 2, impurities are attached to the ultrafiltration membrane wires to influence the discharge rate of purified water, then pressure is applied to the inside of the shell 1 through the booster pump and the air injection pipe 4 to increase the rate of sewage passing through the ultrafiltration membrane wires to keep the discharge rate of purified water relatively stable, a liquid stirring assembly and a fluctuation assembly are arranged in the shell 1, the fluctuation assembly is positioned on the upper side of the liquid stirring assembly, the liquid stirring assembly is used for stirring the liquid in the shell 1, the fluctuation assembly is used for stirring the liquid in the shell 1 up and down, intermittent air injection assemblies for controlling air to intermittently enter the shell 1 are circumferentially and symmetrically arranged on the liquid stirring assembly, so that air bubbles intermittently penetrate the ultrafiltration membrane wires, a swinging assembly for circumferentially and repeatedly stirring the liquid in the shell 1 is arranged on the fluctuation assembly to form turbulent flow to wash the ultrafiltration membrane wires, and then the air bubbles entering the shell 1 are combined to accelerate the separation of the impurities on the ultrafiltration membrane wires, prolonging the service time.
Referring to fig. 2 and 3, the liquid stirring assembly comprises a rotating sleeve 5, the rotating sleeve 5 is rotationally connected in a shell 1, the rotating sleeve 5 is located below a convex ring at the lower side of the shell 1, two symmetrical through holes 6 are formed in the lower portion of the rotating sleeve 5, the through holes 6 are alternately communicated with six guide pipes of an air injection pipe 4, impellers 7 are fixedly connected to the lower end of the rotating sleeve 5 through a supporting frame, guide grooves 8 are formed in the circumferential direction of the inner wall of the rotating sleeve 5 at equal intervals, and the impellers 7 and the rotating sleeve 5 rotate along with the flow of liquid, so that air is uniformly added to the shell 1 in the circumferential direction through the air injection pipe 4.
Referring to fig. 2 and 3, the wave assembly includes a sliding sleeve 9, the sliding sleeve 9 is spline-connected between convex rings of the housing 1, the diameter of the middle part of the sliding sleeve 9 is wider than the diameters of both ends of the sliding sleeve, the convex rings of the housing 1 are used for limiting the movement of the sliding sleeve 9, the lower part of the sliding sleeve 9 is matched with a rotating sleeve 5, the lower end of the sliding sleeve 9 is provided with a triangular sealing ring for improving the tightness between the sliding sleeve 9 and the rotating sleeve 5, the lower part of the left side of the sliding sleeve 9 is provided with a convex column, the convex column of the sliding sleeve 9 is positioned in a guide groove 8, the guide groove 8 surrounds to form a closed loop, each section of guide groove 8 is formed by combining two symmetrical inclined grooves and a horizontal groove, the convex column of the sliding sleeve 9 moves in the guide groove 8 during the rotation of the rotating sleeve 5, the sliding sleeve 9 is made to reciprocate intermittently, the fixing rings 10 are welded on the upper end and the lower end of the sliding sleeve 9 respectively, the sliding sleeve 9 drives the fixing rings 10 to reciprocate to stir liquid in the shell 1, the upper end and the lower end of the inner wall of the fixing rings 10 are provided with symmetrical round table-shaped surfaces, the stirred liquid gathers towards the middle part of the shell 1, the liquid is accelerated to be filtered by the ultrafiltration membrane wires, the upper end and the lower end of the fixing rings 10 are fixedly connected with first baffle plates 11 for dividing bubbles at equal intervals in the circumferential direction, the first baffle plates 11 separate and push the floating bubbles, so that the bubbles and the liquid diffuse to flow to the ultrafiltration membrane wires, the bubbles penetrate the ultrafiltration membrane wires reciprocally, impurities on the bubbles are accelerated to be separated from the liquid, and then the bubbles are free in the liquid, so that the service time of the ultrafiltration membrane wires is prolonged.
Referring to fig. 2 and 4, the intermittent gas injection assembly comprises a second baffle 12, the second baffle 12 is connected in the through hole 6 by bolts, a plurality of holes are uniformly formed in the second baffle 12, gas passes through the holes of the second baffle 12 to form a plurality of bubbles, the bubbles enter liquid in the shell 1, the holes of the second baffle 12 are in a circular truncated cone shape, so that the pressure of the gas passing through the circular truncated cone-shaped holes is increased, the gas injection distance is increased, the bubbles better diffuse in the shell 1, the inner wall of the rotating sleeve 5 is fixedly connected with the fixed shell 13 through a supporting block, the fixed shell 13 is connected with a sliding rod 14 in a sliding manner, a first spring 15 is fixedly connected between the sliding rod 14 and the fixed shell 13, the upper end of the sliding rod 14 is connected with a third baffle 16 by bolts, the third baffle 16 is matched with the holes of the second baffle 12, the upper end of the third baffle 16 is contacted and matched with the sliding sleeve 9, the third baffle 16 moves along with the intermittent gas, the third baffle 16 intermittently moves along with the circular truncated cone-shaped holes, the air bubbles are intermittently injected into the shell 1, and the air bubbles pass through the ultrafiltration membrane wire to accelerate the impurity separation in the area.
Referring to fig. 2 and 5, the swinging assembly includes a rotating ring 17, convex rings are symmetrically arranged in the middle of the inner wall of the sliding sleeve 9, the rotating ring 17 is rotationally connected between the symmetrical convex rings on the sliding sleeve 9, the cross section of the inner wall of the rotating ring 17 is trapezoid, the sliding sleeve 9 drives the rotating ring 17 to move up and down, the rotating ring 17 stirs the liquid in the shell 1 and gathers towards the middle of the shell 1, a plurality of rotating plates 18 are circumferentially equidistant on the inner wall of the sliding sleeve 9, the rotating plates are rotationally connected with each other, the upper end and the lower end of the sliding sleeve 9 are uniformly and fixedly connected with inclined plates 19, the inclined plates 19 on the upper side and the lower side are staggered, the contact area between the inclined plates 19 and the liquid along the axial direction of the shell 1 is increased, the rotating ring 17 and the inclined plates 19 move, so that the liquid extrudes the inclined plates 19, the inclined plates 19 and the rotating ring 17 rotate to stir the liquid in the shell 1, and form turbulence in the shell 1.
The user passes through the pipeline with the feed liquor pipe of casing 1 and is connected with the suction pump, starts the suction pump through control panel 3, pours into sewage into in the casing 1, and the sewage flow that gets into in the casing 1 strikes impeller 7 and rotates, and sewage is discharged from the fluid-discharge tube after the milipore filter silk filters to the clear water simultaneously, accomplishes the filtration of sewage.
In the process, the impeller 7 rotates to slightly stir sewage in the shell 1, and meanwhile, the impeller 7 drives the rotating sleeve 5 to rotate through the supporting frame, so that the sliding sleeve 9 and the convex column move along the guide groove 8, the convex column moves downwards firstly and then upwards along the guide groove 8, then the convex column is kept static, and the operation is continuously repeated, so that the sliding sleeve 9 moves intermittently up and down in a reciprocating manner.
When the sliding sleeve 9 moves up and down, the upper fixing ring 10 and the rotating ring 17 move up and down together, the fixing ring 10 moves to stir sewage in the shell 1, and as the inner wall of the fixing ring 10 is in a round table shape, the sewage is pushed to gather towards the middle part of the shell 1 in the moving process of the fixing ring 10, the rotating ring 17 presses the inclined plate 19 in the moving process of the rotating ring 17, so that the inclined plate 19 drives the rotating ring 17 and the rotating plate 18 to rotate together, and the rotating ring 17 has the blocking effect of polluted water, the rotating ring 17 enables the rotating plate 18 to incline correspondingly and contact with the inner wall of the rotating ring, namely, the rotating ring 17 drives the inclined rotating plate 18 to rotate together to stir the sewage in the shell 1 circumferentially, and when the subsequent sliding sleeve 9 moves down, the parts move reversely, finally the rotating ring 17 and the rotating plate 18 stir the sewage in a reciprocating way, so that the sewage in the shell 1 forms turbulent flow, impurities in the sewage are prevented from being directly attached to ultrafiltration membrane wires, and the service time of the ultrafiltration membrane wires is prolonged.
The filtered water flows through the flow sensor in the liquid discharge pipe on the cover 2, the flow sensor transmits data to the control panel 3, when the control panel 3 detects that the data of the flow sensor descends by a certain distance, the control panel 3 starts the booster pump on the air injection pipe 4, meanwhile, sewage flows through the impeller 7 and the upper supporting frame thereof to drive the rotating sleeve 5 to rotate, two through holes 6 on the rotating sleeve 5 are alternately communicated with the air guide pipes uniformly distributed on the air injection pipe 4, the air extrudes the one-way valve in the air guide pipe on the air injection pipe 4, and enters the shell 1 through the through holes 6, so that the pressure in the shell 1 is improved, the speed of the sewage in the shell 1 passing through ultrafiltration membrane wires is increased, and the sewage is tightly attached to the lower end of the sliding sleeve 9 through the sliding rod 14 under the action of the first spring 15.
In the process of alternating reciprocating movement of the sliding sleeve 9, the convex column of the sliding sleeve 9 passes through the inclined groove section below the guide groove 8 and moves downwards, the sliding sleeve 9 extrudes the third baffle 16 and the sliding rod 14 to move downwards synchronously and compress the first spring 15, when the sliding sleeve 9 moves downwards for half of the distance, the third baffle 16 shields and seals the through hole 6, gas cannot enter the through hole, meanwhile, the gas gathers in the gas injection pipe 4, then the sliding sleeve 9 extrudes the third baffle 16 and the sliding rod 14 to move downwards continuously, and in the process, the third baffle 16 always shields and seals the through hole 6.
Then the convex column of the sliding sleeve 9 moves upwards through the upward inclined groove section of the guide groove 8, under the action of the first spring 15, the sliding rod 14 and the third baffle 16 move upwards synchronously, the third baffle 16 moves upwards to release the shielding of the through hole 6, so that the gas in the gas injection pipe 4 enters the shell 1 through the through hole 6, a plurality of bubbles are formed after the gas enters the shell 1 under the action of uniformly distributed round table-shaped holes on the second baffle 12 in the through hole 6, the gas pressure is increased after the gas passes through the round table-shaped holes, so that the gas is sprayed farther in the shell 1, the gas amount entering the sewage gradually rises, then under the action of the circular arc section on the guide groove 8, the sliding sleeve 9 is kept stationary in the rotating process of the rotating sleeve 5, the bubbles are continuously injected into the shell 1, and the continuous operation is repeated along with the continuous rotation of the rotating sleeve 5, namely, the bubbles are intermittently injected into the circumference of the inner wall of the shell 1.
When injected bubbles float up to the vicinity of the fixing ring 10, the fixing ring 10 pushes sewage and bubbles to move in the downward moving process, the first baffle 11 uniformly distributed on the fixing ring 10 acts to separate the floating bubbles and enable the bubbles to gather towards the middle of the shell 1, part of ultrafiltration membrane wires on the cover 2 are penetrated back and forth in the bubble flowing process, when the bubbles penetrate through the ultrafiltration membrane, part of impurities attached to the bubbles are separated, meanwhile, when the third baffle 16 moves to block the through holes 6 in the process, the through holes 6 are blocked to inject gas into the shell 1, as sewage and the bubbles are discharged through the ultrafiltration membrane wires, the pressure in the shell 1 is reduced, namely the extrusion force of water flowing to the ultrafiltration membrane wire impurities on the cover 2 is reduced, the impurities on the ultrafiltration membrane wires are separated from water suspended in the shell 1 in the process of the bubbles penetrating back and forth part of ultrafiltration membrane wires, the adhesion quantity of the impurities on the ultrafiltration membrane wires is reduced, meanwhile, the rotating ring 17 and the rotating plate 18 are rotated to the back and forth in the stirring process, the sewage drives the bubbles to pass back and forth through part of the ultrafiltration membrane wires on the cover 2, the sewage is further discharged through the ultrafiltration membrane wires, the pressure in the shell 1 is reduced, namely the extrusion force of the water on the ultrafiltration membrane wires is reduced, and the ultrafiltration membrane wire is further discharged to the ultrafiltration membrane is stable, and the water is discharged through the ultrafiltration membrane is ensured.
After the flow sensor on the cover 2 detects that the water purification discharge rate recovers a certain value, the control panel 3 stops the booster pump on the air injection pipe 4, and when the flow sensor detects that the water purification discharge rate keeps a reduced state for a long time, namely, the impurities in the shell 1 are excessive, the user is required to close the sewage filtering operation, and the cover 2 is taken down and the ultrafiltration membrane wires on the cover are cleaned.
Embodiment 2 based on embodiment 1, refer to fig. 2 and 6, further include a buffer diversion component, the support frame of impeller 7 is equipped with the buffer diversion component that is used for reducing sewage impact force, buffer diversion component is including four backup pads 20 of circumference symmetry, the lower extreme fixed connection of four backup pads 20 is on the support frame of impeller 7, the upper end fixedly connected with fixed block 21 of four backup pads 20, fixed block 21 circumference equidistance is provided with first inclined hole 22, fixed block 21 spline connection has sliding block 23, sliding block 23 circumference equidistance is provided with second inclined hole 24, fixedly connected with second spring 25 between fixed block 21 and the sliding block 23, sewage flow impact is moved on sliding block 23 and is compressed second spring 25, buffer sewage impact force, avoid sewage direct impact milipore filter silk bending loss, first inclined hole 22 and second inclined hole 24 crisscross the setting, fixed block 21 and sliding block 23's lateral wall all are the back impact sliding block 23 movement and fixed block 21 contact cooperation of the slope after the slope of a round table shape sewage pressure rise, first inclined hole 22 and second inclined hole 24 and the inner wall 1 of the sealed inner wall 1 along the sealed inner wall of the inside wall of the sealed shell 1 that moves between this moment.
When sewage enters the shell 1, the sewage flow impacts on the sliding block 23, the sliding block 23 shunts the sewage, meanwhile, along with the sewage flowing on the inverted circular truncated cone-shaped side wall of the sliding block 23, part of the sewage flows upwards through the second inclined hole 24, the contact area between the sewage flow and the sliding block 23 is increased, the impacted sliding block 23 moves upwards to compress the second spring 25, the flowing impact force of the sewage is buffered, the sewage flowing through the second inclined hole 24 impacts on the inverted circular truncated cone-shaped side wall of the fixed block 21, the impact force of the sewage flowing is buffered again, and the impact of the sewage on ultrafiltration membrane wires on the cover 2 is reduced.
In the pumping work or the valve switch process, the pressure of the conveyed sewage rises sharply, the sewage impacts the sliding block 23 to enable the sliding block 23 to move, the sliding block 23 moves to be in contact fit with the fixed block 21, at the moment, the first inclined hole 22 and the second inclined hole 24 are used for sealing, the sewage impacts the inverted circular truncated cone-shaped side wall of the sliding block 23 and flows towards the inner wall of the shell 1, high-pressure sewage is prevented from directly impacting the ultrafiltration membrane wire on the cover 2, the ultrafiltration membrane wire is enabled to be in contact with the inner wall of the sliding sleeve 9, and the contact area between the ultrafiltration membrane wire and the sewage is affected.
It should be noted that the foregoing description of the preferred embodiments is merely illustrative of the technical concept and features of the present invention, and is not intended to limit the scope of the invention, as long as the scope of the invention is defined by the claims and their equivalents. All equivalent changes or modifications made in accordance with the spirit of the present invention should be construed to be included in the scope of the present invention.
Claims (6)
1. An ultrafiltration membrane with air pressure adjusting function, which is characterized in that: comprises a shell (1), one end of the shell (1) is provided with a liquid inlet pipe, the upper part and the lower part of the inner wall of the shell (1) are respectively provided with a convex ring used for limiting, the other end of the shell (1) is provided with a cover (2), one side of the cover (2) attached to the shell (1) is uniformly provided with an ultrafiltration membrane wire, the outer side of the ultrafiltration membrane wire is provided with a tightening net used for tightening, the other side of the cover (2) is provided with a liquid outlet pipe, the liquid outlet pipe of the cover (2) is communicated with the upper ultrafiltration membrane wire, a flow sensor is arranged in the liquid outlet pipe of the cover (2), the side wall of the shell (1) is provided with a control panel (3), the lower part of the shell (1) is communicated with an air injection pipe (4) through a guide pipe which is circumferentially uniform, the guide pipe is internally provided with a one-way valve, the gas injection pipe (4) is provided with a booster pump, the booster pump is used for applying pressure into the shell (1) to enable the liquid discharge rate of the liquid discharge pipe to be stable, the shell (1) is internally provided with a liquid stirring assembly and a fluctuation assembly, the liquid stirring assembly is used for stirring the liquid in the shell (1), the fluctuation assembly is used for stirring the liquid in the shell (1) up and down, intermittent gas injection assemblies for controlling gas to intermittently enter the shell (1) are circumferentially and symmetrically arranged on the liquid stirring assembly, and the fluctuation assembly is provided with a swinging assembly for circumferentially and reciprocally stirring the liquid in the shell (1) to enable the liquid in the shell (1) to form turbulent flow to wash ultrafiltration membrane wires on the cover (2);
the liquid stirring assembly comprises a rotating sleeve (5), the rotating sleeve (5) is rotatably arranged in the shell (1), the rotating sleeve (5) is positioned below a convex ring at the lower side of the shell (1), symmetrical through holes (6) are formed in the lower part of the rotating sleeve (5), the through holes (6) are alternately communicated with a guide pipe of the gas injection pipe (4), an impeller (7) is fixedly connected at the lower end of the rotating sleeve (5) through a support frame, and guide grooves (8) are formed in the circumferential direction of the inner wall of the rotating sleeve (5) at equal intervals;
the fluctuation assembly comprises a sliding sleeve (9), the sliding sleeve (9) is connected between convex rings of the shell (1) through splines, the diameter of the middle part of the sliding sleeve (9) is wider than the diameters of two ends of the sliding sleeve, the convex rings of the shell (1) are used for limiting the movement of the sliding sleeve (9), the lower part of the sliding sleeve (9) is matched with the rotating sleeve (5), the lower end of the sliding sleeve (9) is provided with a triangular sealing ring, the triangular sealing ring is used for improving the tightness between the sliding sleeve (9) and the rotating sleeve (5), the side wall of the lower part of the sliding sleeve (9) is provided with convex columns matched with the guide grooves (8), the upper end and the lower end of the sliding sleeve (9) are respectively fixedly connected with a fixed ring (10), and the upper end and the lower end of the fixed ring (10) are circumferentially equidistant and provided with first baffle plates (11) for separating bubbles;
the guide grooves (8) encircle to form a closed loop, and each section of guide groove (8) is formed by combining two symmetrical inclined grooves and a horizontal groove and is used for intermittently and reciprocally moving up and down by the sliding sleeve (9);
the swing assembly comprises a rotating ring (17), convex rings are symmetrically arranged in the middle of the inner wall of a sliding sleeve (9), the rotating ring (17) is rotationally arranged between the convex rings which are symmetrically arranged on the sliding sleeve (9), the cross section of the inner wall of the rotating ring (17) is trapezoid, rotating plates (18) are circumferentially equidistant on the inner wall of the sliding sleeve (9), the rotating plates are rotationally connected with the sliding sleeve, and inclined plates (19) are fixedly connected with the upper end and the lower end of the sliding sleeve (9) at equal intervals.
2. An ultrafiltration membrane with air pressure regulating function according to claim 1, wherein: the upper end and the lower end of the inner wall of the fixed ring (10) are provided with symmetrical round table-shaped surfaces for pushing the liquid to gather inwards.
3. An ultrafiltration membrane with air pressure regulating function according to claim 1, wherein: the intermittent type gas injection assembly is including second baffle (12), second baffle (12) rigid coupling is in through-hole (6), evenly be provided with the hole that is used for evenly forming the bubble on second baffle (12), the inner wall of rotating cover (5) has fixed shell (13) through the supporting shoe rigid coupling, it is provided with slide bar (14) to slide on fixed shell (13), install first spring (15) between slide bar (14) and the fixed shell (13), third baffle (16) are installed to the upper end of slide bar (14), the hole cooperation of third baffle (16) and second baffle (12), the upper end and the contact cooperation of slip cap (9) of third baffle (16).
4. An ultrafiltration membrane with air pressure regulating function according to claim 1, wherein: the holes on the second baffle plate (12) are in a truncated cone shape and are used for improving the spraying distance of the gas.
5. An ultrafiltration membrane with air pressure regulating function according to claim 1, wherein: the upper side inclined plates (19) and the lower side inclined plates (19) are arranged in a staggered mode and are used for improving the contact area between the inclined plates (19) and liquid along the axis direction of the shell (1).
6. An ultrafiltration membrane with air pressure regulating function according to claim 1, wherein: still including buffering water conservancy diversion subassembly, the support frame of impeller (7) is equipped with the buffering water conservancy diversion subassembly that is used for reducing sewage impact force, buffering water conservancy diversion subassembly is including circumference symmetrical backup pad (20), circumference symmetrical backup pad (20) rigid coupling is on the support frame of impeller (7), circumference symmetrical backup pad (20) upper end rigid coupling has fixed block (21), fixed block (21) circumference equidistance is provided with first inclined hole (22), fixed block (21) spline connection has sliding block (23), sliding block (23) circumference equidistance is provided with second inclined hole (24), install second spring (25) between fixed block (21) and sliding block (23), first inclined hole (22) and second inclined hole (24) are crisscross to be set up for guide diverting sewage, the lateral wall of fixed block (21) and sliding block (23) all is the round platform shape of falling.
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| CN213913171U (en) * | 2020-11-13 | 2021-08-10 | 杭州元祥膜技术有限公司 | Ultrafiltration membrane assembly beneficial to backwashing |
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