CN117815917B - Integrated membrane module for sewage treatment - Google Patents
Integrated membrane module for sewage treatment Download PDFInfo
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- CN117815917B CN117815917B CN202410238845.8A CN202410238845A CN117815917B CN 117815917 B CN117815917 B CN 117815917B CN 202410238845 A CN202410238845 A CN 202410238845A CN 117815917 B CN117815917 B CN 117815917B
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- 239000012528 membrane Substances 0.000 title claims abstract description 188
- 239000010865 sewage Substances 0.000 title claims abstract description 27
- 230000007246 mechanism Effects 0.000 claims abstract description 167
- 238000005273 aeration Methods 0.000 claims abstract description 146
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 45
- 238000004140 cleaning Methods 0.000 claims abstract description 23
- 239000004744 fabric Substances 0.000 claims description 18
- 238000004065 wastewater treatment Methods 0.000 claims description 7
- 238000001914 filtration Methods 0.000 abstract description 7
- 239000012535 impurity Substances 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 3
- 238000000926 separation method Methods 0.000 description 5
- 230000009471 action Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000000746 purification Methods 0.000 description 3
- 238000005276 aerator Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 239000012510 hollow fiber Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D63/00—Apparatus in general for separation processes using semi-permeable membranes
- B01D63/02—Hollow fibre modules
- B01D63/026—Wafer type modules or flat-surface type modules
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D63/00—Apparatus in general for separation processes using semi-permeable membranes
- B01D63/02—Hollow fibre modules
- B01D63/04—Hollow fibre modules comprising multiple hollow fibre assemblies
-
- 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
-
- 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
- B01D65/04—Membrane cleaning or sterilisation ; Membrane regeneration with movable bodies, e.g. foam balls
-
- 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
-
- 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
- B01D2321/04—Backflushing
-
- 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
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The invention relates to the technical field of sewage filtration, in particular to a sewage treatment integrated membrane module, which comprises a frame body, a pipe frame mechanism, a filter membrane mechanism and an aeration system; the lower end of the filter membrane mechanism is fixed, and the upper end of the filter membrane mechanism can move up and down; the filter membrane mechanism is hollow; the aeration system comprises an air inlet pipe, an upper aeration pipe, a lower aeration pipe and a connecting pipe; when the filter membrane mechanism is cleaned, the upper end of the filter membrane mechanism moves downwards to a state that the filter membrane mechanism is relaxed, adjacent filter membrane mechanisms can shake in a friction way, impurities attached to the filter membrane mechanisms are accelerated to fall off, water flow is discharged outwards from the filter membrane mechanism to recoil the outer surface of the filter membrane mechanism, and meanwhile, an upper aeration pipe and a lower aeration pipe respectively perform air outlet on the upper end position and the lower end position of the filter membrane mechanism, and cleaning of the end part of the filter membrane mechanism is accelerated through impact of bubbles and water. The filter membrane mechanism is loosened and backflushed, and the filter membrane mechanism is cleaned in all directions by combining the upper aeration pipe and the lower aeration pipe, so that the cleaning position is more comprehensive and the cleaning effect is better.
Description
Technical Field
The invention relates to the technical field of sewage filtration, in particular to a sewage treatment integrated membrane module.
Background
The membrane separation technology is a novel liquid separation and purification technology with higher efficiency, low energy consumption and no environmental pollution, and can achieve the purpose of separation and purification on the premise of not introducing new components compared with the traditional material separation technology. At present, the curtain type hollow fiber membrane has the advantages of high filtering precision, high strength, excellent water quality of produced water, stable performance and the like, and is widely applied to a plurality of large and medium-sized sewage treatment projects at home and abroad. The existing curtain-type hollow fiber membrane has the defects that the working efficiency is lower and lower after long-time working, and the filtering effect is affected because a large amount of impurities or suspended sediments are attached to the long-time working surface in the filtering process.
Disclosure of Invention
The invention provides a sewage treatment integrated membrane component, which aims to solve the problem that the filtering efficiency is affected by the easy blockage of the traditional fiber membrane.
The invention relates to a sewage treatment integrated membrane component, which adopts the following technical scheme:
An integrated membrane component for sewage treatment comprises a frame body, a pipe frame mechanism, a filter membrane mechanism and an aeration system; the filter membrane mechanisms are distributed at intervals along the left-right direction and are all arranged on the frame body through the pipe frame mechanism, the lower ends of the filter membrane mechanisms are fixed, and the upper ends of the filter membrane mechanisms can move up and down; the filter membrane mechanism is hollow and is communicated with the pipe rack mechanism, and the pipe rack mechanism is used for extracting sewage treated in the filter membrane mechanism and injecting water into the filter membrane mechanism, so that water flow is discharged from the filter membrane mechanism to the outside to recoil the outer surface of the filter membrane mechanism; the aeration system comprises an air inlet pipe, an upper aeration pipe, a lower aeration pipe and a connecting pipe; the air inlet pipe is fixedly arranged on the frame body, the connecting pipe is arranged on the frame body and communicated with the air inlet pipe, and the position of the connecting pipe in the vertical direction is adjustable; the upper aeration pipe and the lower aeration pipe are communicated with the connecting pipe, are arranged along the front-back direction and synchronously move up and down along with the connecting pipe; the aeration system is provided with an aeration state and a cleaning state, and in the aeration state, the lower aeration pipe is positioned below the space between the two adjacent filter membrane mechanisms and is used for exhausting air upwards from the space between the two adjacent filter membrane mechanisms; under the cleaning state, the lower aeration pipe is positioned above the lower ends of the filter membrane mechanisms and alternately vents to the left lower side and the right lower side between the two filter membrane mechanisms, and the upper aeration pipe is positioned below the upper ends of the filter membrane mechanisms and alternately vents to the left upper side and the right upper side between the two filter membrane mechanisms.
Further, the upper aeration pipe comprises a first outer pipe and a first inner pipe, the first outer pipe and the first inner pipe are coaxial and sleeved outside the first inner pipe, the first outer pipe is arranged on the connecting pipe, and the first inner pipe can axially slide relative to the first outer pipe; the upper left and upper right of the first outer tube and the first inner tube are respectively provided with air holes, and the air holes on the first outer tube and the first inner tube are different in interval in the axial direction of the first inner tube so as to alternately enable the air holes on the upper left to be communicated and the air holes on the upper right to be communicated when the first outer tube and the first inner tube slide in a reciprocating manner relative to each other in the axial direction; the lower aeration pipe comprises a second outer pipe and a second inner pipe, the second outer pipe and the second inner pipe are coaxial and sleeved outside the second inner pipe, the second outer pipe is arranged on the connecting pipe, and the second inner pipe can axially slide relative to the second outer pipe; the left lower part, the right lower part and the right upper part of the second outer pipe and the second inner pipe are respectively provided with air holes, and the air holes on the second outer pipe and the second inner pipe are different in interval in the axial direction of the second inner pipe so as to alternately enable the air holes at the left lower part to be communicated and the air holes at the right lower part to be communicated when the second outer pipe and the second inner pipe slide relatively in the axial direction; in the aeration state of the aeration system, the air holes on the first outer pipe and the first inner pipe are not communicated, the air holes on the second outer pipe and the second inner pipe which are positioned right above are communicated, and the first outer pipe and the first inner pipe, the second outer pipe and the second inner pipe do not reciprocate; under the cleaning state, the first outer tube and the first inner tube axially reciprocate to enable the air holes at the left lower part and the air holes at the right lower part of the upper aeration tube to be alternately communicated, and the second outer tube and the second inner tube axially reciprocate to enable the air holes at the left lower part and the air holes at the right lower part of the lower aeration tube to be alternately communicated.
Further, the aeration system also comprises an impeller, a crankshaft and a connecting rod, wherein the impeller and the crankshaft are connected and are all arranged in the air inlet pipe, and the impeller drives the crankshaft to rotate when air in the air inlet pipe passes through; the crankshaft is provided with a plurality of eccentric shaft sections which are not coaxial with the impeller; the connecting rod is arranged on the connecting pipe in a vertical sliding way, and the connecting rod and the eccentric shaft section can slide back and forth and are synchronously connected in a vertical moving way, so that the connecting rod is driven to move up and down when the crankshaft rotates; the first inner tube and the second inner tube pass through the connecting tube and are in sliding sleeve joint with the connecting rod; the connecting rod comprises an upward bent section, a first vertical section, a downward bent section and a second vertical section which are sequentially arranged from top to bottom, and when the first inner pipe and the second inner pipe are respectively matched with the first vertical section and the second vertical section, air holes on the first outer pipe and the first inner pipe are not communicated, and air holes on the second outer pipe and the second inner pipe which are positioned right above are communicated; when the first inner tube is matched with the upper curved section, the up-and-down movement of the connecting rod can drive the first inner tube to axially slide relative to the first outer tube; when the second inner tube is matched with the lower curved section, the up-and-down movement of the connecting rod can drive the second inner tube to axially slide relative to the second outer tube.
Further, the aeration system also comprises a driving piece, wherein the driving piece is arranged on the frame body and is used for driving the connecting pipe to move up and down; in the aeration state of the aeration system, the connecting pipe enables the first inner pipe of the upper aeration pipe to be matched with the first vertical section of the connecting rod, and enables the second inner pipe of the lower aeration pipe to be matched with the second vertical section of the connecting rod, and the lower aeration pipe is positioned below the lower end of the filter membrane mechanism; under the cleaning state of the aeration system, the connecting pipe drives the upper aeration pipe and the lower aeration pipe to synchronously move upwards to: the first inner tube of the upper aeration tube is matched with the upper bent section of the connecting rod, the second inner tube of the lower aeration tube is matched with the lower bent section of the connecting rod, the upper aeration tube is positioned below the upper end of the filter membrane mechanism, and the lower aeration tube is positioned above the lower end of the filter membrane mechanism.
Further, the pipe support mechanism comprises a fixed pipe group, a movable pipe group and a main pipe, wherein the main pipe is fixed relative to the support body and is communicated with the fixed pipe group and the movable pipe group; the fixed tube group is fixedly arranged on the frame body, the movable tube group can be movably arranged on the frame body up and down, and the movable tube group is positioned above the fixed tube group; the upper end of each filter membrane mechanism is arranged on the movable tube group, the lower end of each filter membrane mechanism is arranged on the fixed tube group, the inside of each filter membrane mechanism is communicated with the fixed tube group and the movable tube group, and sewage is discharged to the main pipe from the fixed tube group and the movable tube group after being treated by the filter membrane mechanisms.
Further, a piston cylinder which is connected with the main pipe in a vertically movable way is arranged on the movable pipe group, a piston block is fixedly arranged in the main pipe, and the piston block and the piston cylinder are matched to prevent water flow from flowing between the main pipe and the movable pipe group; an elastic component is arranged between the movable tube group and the frame body, and the elastic component promotes the movable tube group to move to the position where the piston cylinder is matched with the piston block; the main pipe is externally connected with a pump body, water is pumped outwards from the main pipe when the pump body rotates forwards, and water is pumped into the main pipe when the pump body rotates reversely; when the pump body pumps water outwards from the main pipe, the piston cylinder is firstly pumped upwards to enable the movable pipe group to move upwards until the piston block is staggered with the piston cylinder, and meanwhile, the movable pipe group drives the upper end of the filter membrane mechanism to move upwards to enable the filter membrane mechanism to relax; when the pump body pumps water into the main pipe, the piston cylinder is pushed upwards to enable the movable pipe group to move downwards until the piston block is staggered with the piston cylinder, and meanwhile, the movable pipe group drives the upper end of the filter membrane mechanism to move downwards to enable the filter membrane mechanism to be loosened.
Further, the filter membrane mechanism comprises an upper through pipe, a lower through pipe and a membrane cloth, wherein the upper through pipe is arranged on the movable pipe group and communicated with the movable pipe group, and the lower through pipe is arranged on the fixed pipe group and communicated with the fixed pipe group; the upper and lower ends of the membrane cloth are respectively arranged on the upper through pipe and the lower through pipe, and the inside of the membrane cloth is communicated with the inside of the upper through pipe and the inside of the lower through pipe.
Further, the upper aeration pipe and the lower aeration pipe are all multiple and distributed in sequence along the left-right direction, and at least one upper aeration pipe and one lower aeration pipe are arranged between every two adjacent filter membrane mechanisms.
Further, the piston cylinder is connected with the main pipe through a telescopic corrugated pipe, and the corrugated pipe is communicated with the piston cylinder and the inside of the main pipe.
Further, the air inlet pipe is communicated with the connecting pipe through a telescopic corrugated pipe or a flexible pipe.
The beneficial effects of the invention are as follows: when the sewage treatment integrated membrane assembly disclosed by the invention is used for cleaning a filter membrane mechanism, the upper end of the filter membrane mechanism moves downwards to a state of loosening the filter membrane mechanism, the filter membrane mechanism is not tightened any more, a wavy curved surface is formed in water, adjacent filter membrane mechanisms can rub and shake, impurities attached to the filter membrane mechanisms are accelerated to fall off, water flow is discharged from the inside of the filter membrane mechanism to the outside to recoil the outer surface of the filter membrane mechanism, meanwhile, an aeration system is switched to a cleaning state, an upper aeration pipe and a lower aeration pipe are used for respectively discharging air to the upper end position and the lower end position of the filter membrane mechanism, and cleaning of the end parts of the filter membrane mechanism is accelerated through impact of air bubbles and water. The filter membrane mechanism is loosened and backflushed, and the filter membrane mechanism is cleaned in all directions by combining the upper aeration pipe and the lower aeration pipe, so that the cleaning position is more comprehensive and the cleaning effect is better.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the invention, and that other drawings can be obtained according to these drawings without inventive faculty for a person skilled in the art.
FIG. 1 is a schematic view showing the overall structure of an embodiment of an integrated membrane module for sewage treatment according to the present invention;
FIG. 2 is a schematic view of a rack and pipe rack mechanism in an embodiment of an integrated membrane module for wastewater treatment according to the present invention;
FIG. 3 is a schematic view of a filter mechanism in an embodiment of an integrated membrane module for wastewater treatment according to the present invention;
FIG. 4 is a schematic view showing the structure of an aeration system in an embodiment of an integrated membrane module for sewage treatment according to the present invention;
FIG. 5 is a schematic view showing a part of the structure of an aeration system in an embodiment of an integrated membrane module for sewage treatment according to the present invention;
FIG. 6 is an enlarged schematic view of FIG. 5A;
FIG. 7 is an enlarged schematic view of FIG. 5 at B;
FIG. 8 is a schematic cross-sectional view of a pipe rack mechanism in an embodiment of a wastewater treatment integrated membrane module according to the present invention;
FIG. 9 is an enlarged schematic view of FIG. 8 at C;
In the figure: 100. a frame body; 200. a pipe rack mechanism; 210. fixing the tube group; 220. a movable tube group; 221. a piston cylinder; 230. a header pipe; 231. a piston block; 240. an elastic member; 300. a filter membrane mechanism; 310. a top through pipe; 320. a lower through pipe; 330. film cloth; 400. an aeration system; 410. an air inlet pipe; 420. an upper aeration pipe; 422. a first inner tube; 430. a lower aeration pipe; 432. a second inner tube; 440. a connecting pipe; 450. an impeller; 460. a crankshaft; 461. an eccentric shaft section; 470. a connecting rod; 471. a curved section; 472. a first vertical section; 473. a lower curved section; 474. a second vertical section.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
An embodiment of an integrated membrane module for sewage treatment according to the present invention, as shown in fig. 1 to 9, includes a frame body 100, a pipe frame mechanism 200, a filter membrane mechanism 300, and an aeration system 400.
The filter membrane mechanism 300 is arranged in a plurality of the left-right direction at intervals, and is mounted on the frame body 100 through the pipe frame mechanism 200, the lower end of the filter membrane mechanism 300 is fixed, and the upper end of the filter membrane mechanism 300 can move up and down. The filter membrane mechanism 300 is hollow and is communicated with the pipe rack mechanism 200, and the pipe rack mechanism 200 is used for extracting sewage treated in the filter membrane mechanism 300, injecting water into the filter membrane mechanism 300, and discharging water from the filter membrane mechanism 300 to the outside to recoil the outer surface of the filter membrane mechanism 300.
The aeration system 400 includes an air inlet pipe 410, an upper aeration pipe 420, a lower aeration pipe 430, and a connection pipe 440.
The air inlet pipe 410 is fixedly installed on the frame 100 and externally connected to the pumping structure. The connection pipe 440 is installed to the frame body 100 and communicates with the air inlet pipe 410, and a position of the connection pipe 440 in a vertical direction is adjustable; specifically, the intake pipe 410 communicates with the connection pipe 440 through a bellows or hose that is telescopic.
The upper and lower aeration pipes 420 and 430 are both in communication with the connection pipe 440, and are both disposed in the front-rear direction and move up and down in synchronization with the connection pipe 440.
The aeration system 400 has an aeration state and a cleaning state, and in the aeration state of the aeration system 400, the lower aeration pipe 430 is positioned below between two adjacent filter membrane mechanisms 300 and upwards discharges air from between the two adjacent filter membrane mechanisms 300; in the aeration system 400 in the cleaning state, the lower aeration tube 430 is positioned above the lower ends of the filter membrane mechanisms 300 and alternately discharges air to the left and right downward between the two filter membrane mechanisms 300, and the upper aeration tube 420 is positioned below the upper ends of the filter membrane mechanisms 300 and alternately discharges air to the left and right upward between the two filter membrane mechanisms 300.
The aeration state of the aeration system 400 is a normal working state during sewage treatment, the upper end of the filter membrane mechanism 300 moves to a state that the filter membrane mechanism 300 is stretched, sewage enters the filter membrane mechanism 300 from the outside of the filter membrane mechanism 300, purification and separation are realized, and the pipe rack mechanism 200 continuously pumps out water in the filter membrane mechanism 300 to realize continuous sewage treatment. When the filter membrane mechanism 300 needs to be cleaned, the upper end of the filter membrane mechanism 300 is moved downwards to a state that the filter membrane mechanism 300 is relaxed, the filter membrane mechanism 300 is not stretched any more, the adjacent filter membrane mechanisms 300 are in wavy curved surfaces in water, friction and shaking can be carried out between the adjacent filter membrane mechanisms 300, impurities attached to the adjacent filter membrane mechanisms are accelerated to fall off, water flow is discharged outwards from the filter membrane mechanism 300 to recoil the outer surface of the filter membrane mechanism 300, meanwhile, the aeration system 400 is switched to a cleaning state, the upper aeration pipe 420 and the lower aeration pipe 430 respectively carry out air outlet on the upper end position and the lower end position of the filter membrane mechanism 300, and cleaning of the end part of the filter membrane mechanism 300 is accelerated through impact of bubbles and water.
In this embodiment, the upper aeration tube 420 includes a first outer tube and a first inner tube 422, the first outer tube is coaxial with the first inner tube 422 and is sleeved outside the first inner tube 422, the first outer tube is mounted on the connection tube 440, and the first inner tube 422 can axially slide relative to the first outer tube; the upper left and upper right of the first outer and inner pipes 422 are provided with air holes, and the air holes on the first outer and inner pipes 422 are spaced differently in the axial direction of the first inner pipe 422 to alternately communicate the air holes on the upper left and communicate the air holes on the upper right when the first outer and inner pipes 422 slide reciprocally in the axial direction relative to each other. Specifically, the first outer tube and the first inner tube 422 have a group of air holes located at the upper left side, the air holes located at the upper right side have a group of air holes, each group of air holes has a plurality of air holes, the air holes are distributed along the axial direction of the first outer tube or the first inner tube 422 at intervals, and the intervals between the left and right alternate air holes on the first inner tube 422 in the axial direction are unequal to the intervals between the left and right alternate air holes on the first outer tube, so that when the first inner tube 422 axially reciprocates relative to the first outer tube, at most only one group of air holes can be correspondingly overlapped at the same time.
The lower aeration tube 430 includes a second outer tube and a second inner tube 432, the second outer tube is coaxial with the second inner tube 432 and is sleeved outside the second inner tube 432, the second outer tube is mounted to the connection tube 440, and the second inner tube 432 is axially slidable with respect to the second outer tube; the air holes are arranged at the left lower part, the right lower part and the right upper part of the second outer pipe and the second inner pipe 432, and the air holes on the second outer pipe and the second inner pipe 432 are different in interval in the axial direction of the second inner pipe 432, so that the air holes at the left lower part are communicated and the air holes at the right lower part are communicated alternately when the second outer pipe and the second inner pipe 432 slide relatively in the axial direction. Specifically, the second outer tube and the second inner tube 432 are provided with a group of air holes at the lower left, a group of air holes at the lower right, a group of air holes at the right upper, a plurality of air holes of each group are distributed along the axial direction of the second outer tube and the second inner tube 432, and the axial intervals of adjacent three air holes in the three groups of air holes on the second inner tube 432 are unequal to the axial intervals of adjacent three air holes in the three groups of air holes on the second outer tube, so that at most only one group of air holes can be correspondingly overlapped at any moment of the second outer tube and the second inner tube.
In the aeration system 400, in the aeration state, the air holes on the first outer pipe and the first inner pipe 422 are not communicated, the air holes on the second outer pipe and the second inner pipe 432, which are positioned right above, are communicated, and the first outer pipe and the first inner pipe 422, and the second outer pipe and the second inner pipe 432 do not reciprocate. In the cleaning state, the first outer tube and the first inner tube 422 are reciprocally slid in the axial direction with respect to each other, so that the air holes at the left lower side and the air holes at the right lower side of the upper aeration tube 420 are alternately communicated, and the second outer tube and the second inner tube 432 are reciprocally slid in the axial direction with respect to each other, so that the air holes at the left lower side and the air holes at the right lower side of the lower aeration tube 430 are alternately communicated.
In this embodiment, the aeration system 400 further includes an impeller 450, a crankshaft 460 and a connecting rod 470, wherein the impeller 450 and the crankshaft 460 are connected and all extend in the left-right direction and are disposed in the air inlet pipe 410, and the impeller 450 rotates and drives the crankshaft 460 to rotate when the air in the air inlet pipe 410 passes through. The crankshaft 460 is provided with a plurality of eccentric shaft segments 461 that are not coaxial with the impeller 450, the eccentric shaft segments 461 being parallel and not collinear with the rotational axis of the impeller 450. The connecting rod 470 is slidably installed in the connecting pipe 440 up and down, and the connecting rod 470 and the eccentric shaft section 461 are slidably connected in a front-back and synchronously up-down movement, so that the connecting rod 470 is driven to move up and down when the crankshaft 460 rotates; specifically, the connection pipe 440 restricts movement of the connection rod 470 in the horizontal direction, and the connection rod 470 is provided with a translation groove extending in the front-rear direction, and the eccentric shaft segment 461 is slidably mounted in the translation groove and drives the connection rod 470 to move up and down when rotating around the axis of the impeller 450. The first inner tube 422 and the second inner tube 432 are slidably sleeved with the connecting rod 470 through the connecting tube 440; the connecting rod 470 includes an upward curved section 471, a first vertical section 472, a downward curved section 473 and a second vertical section 474 which are sequentially arranged from top to bottom, and when the first inner tube 422 and the second inner tube 432 are respectively matched with the first vertical section 472 and the second vertical section 474, no air holes on the first outer tube and the first inner tube 422 are communicated, and air holes on the second outer tube and the second inner tube 432 which are positioned right above are communicated. When the first inner tube 422 is matched with the upper curved section 471, the up-and-down movement of the connecting rod 470 can drive the first inner tube 422 to axially slide relative to the first outer tube; when the second inner tube 432 mates with the lower curved segment 473, the upward and downward movement of the connecting rod 470 can drive the second inner tube 432 to axially slide relative to the second outer tube 432. Specifically, both the upper curved section 471 and the lower curved section 473 are coplanar with the axes of the first inner tube 422 and the second inner tube 432, and when the connecting rod 470 moves up and down, the cooperation of the upper curved section 471 with the first inner tube 422 moves the first inner tube 422 in its axial direction and the cooperation of the lower curved section 473 with the second inner tube 432 moves the second inner tube 432 in its axial direction, since the first outer tube and the second outer tube are restrained from moving up and down by the connecting tube 440.
In this embodiment, the aeration system 400 further includes a driving member (not shown) for driving the connection pipe 440 to move up and down. The driving member may be an electro-hydraulic cylinder, which is mounted on other fixed structures outside the frame body 100, and an output shaft of the electro-hydraulic cylinder is fixedly connected with the connection pipe 440. In the aeration state of the aeration system 400, the connection pipe 440 cooperates the first inner pipe 422 of the upper aeration pipe 420 with the first vertical section 472 of the connection rod 470, and cooperates the second inner pipe 432 of the lower aeration pipe 430 with the second vertical section 474 of the connection rod 470, and the lower aeration pipe 430 is located below the lower end of the filter membrane mechanism 300. In the cleaning state, the aeration system 400 drives the upper aeration pipe 420 and the lower aeration pipe 430 to move upwards synchronously by the connecting pipe 440 through the driving member: the first inner tube 422 of the upper aeration tube 420 is matched with the upper curved section 471 of the connecting rod 470, the second inner tube 432 of the lower aeration tube 430 is matched with the lower curved section 473 of the connecting rod 470, and the upper aeration tube 420 is positioned below the upper end of the filter membrane mechanism 300, and the lower aeration tube 430 is positioned above the lower end of the filter membrane mechanism 300.
In the present embodiment, the pipe rack mechanism 200 includes a fixed pipe group 210, a movable pipe group 220, and a manifold 230, the manifold 230 being fixed with respect to the rack body 100 and communicating with both the fixed pipe group 210 and the movable pipe group 220; specifically, manifold 230 may be fixedly mounted to frame 100 or may be fixedly mounted to other external structures. The fixed tube group 210 is fixedly installed on the frame body 100, the movable tube group 220 is movably installed on the frame body 100 up and down, and the movable tube group 220 is located above the fixed tube group 210. The upper end of each filter membrane mechanism 300 is mounted on the movable tube group 220, the lower end is mounted on the fixed tube group 210, the inside of the filter membrane mechanism 300 is communicated with both the fixed tube group 210 and the movable tube group 220, and sewage is discharged from the fixed tube group 210 and the movable tube group 220 to the main pipe 230 after being treated by the filter membrane mechanism 300.
In the present embodiment, the movable tube group 220 is provided with a piston cylinder 221 connected to the manifold 230 so as to be movable up and down, specifically, the piston cylinder 221 is connected to the manifold 230 by a bellows which is telescopic, and the bellows is communicated with both the piston cylinder 221 and the inside of the manifold 230. A piston block 231 is fixedly installed in the manifold 230, and the piston block 231 prevents water from flowing between the manifold 230 and the movable tube group 220 when engaged with the piston cylinder 221. An elastic member 240 is disposed between the movable tube group 220 and the frame body 100, and the elastic member 240 urges the movable tube group 220 to move to the piston cylinder 221 to be engaged with the piston block 231. The main pipe 230 is externally connected with a pump body, and pumps water outwards from the main pipe 230 when the pump body rotates forwards, and pumps water into the main pipe 230 when the pump body rotates backwards; when the pump body pumps water outwards from the main pipe 230, the piston cylinder 221 is firstly pumped upwards to enable the movable pipe group 220 to move upwards until the piston block 231 is staggered with the piston cylinder 221, and meanwhile, the movable pipe group 220 drives the upper end of the filter membrane mechanism 300 to move upwards to enable the filter membrane mechanism 300 to relax. When the pump body pumps water into the main pipe 230, the piston cylinder 221 is pushed upwards, so that the movable pipe group 220 moves downwards until the piston block 231 is staggered with the piston cylinder 221, and meanwhile, the movable pipe group 220 drives the upper end of the filter membrane mechanism 300 to move downwards, so that the filter membrane mechanism 300 is loosened.
By utilizing the cooperation of the piston cylinder 221 and the piston block 231, when the integrated membrane module for sewage treatment works normally, the pump body pumps water outwards from the main pipe 230, and the upper end of the filter membrane mechanism 300 is driven to move upwards through the movable pipe group 220, so that the filter membrane mechanism 300 is in a diastole state capable of filtering water normally. When the filter membrane mechanism 300 is back-flushed, the pump body pumps water outwards from the main pipe 230, and the upper end of the filter membrane mechanism 300 is driven to move downwards by the movable pipe group 220, so that the filter membrane mechanism 300 is in a relaxed state which is convenient to clean. When the external pump body changes the water delivery direction, the state of the filter membrane mechanism 300 can be adjusted in a self-adaptive manner, additional control is not needed, and the structure is simplified.
In the present embodiment, the filter membrane mechanism 300 includes an upper tube 310, a lower tube 320 and a membrane cloth 330, the upper tube 310 is mounted to the movable tube group 220 and communicates with the movable tube group 220, and the lower tube 320 is mounted to the fixed tube group 210 and communicates with the fixed tube group 210; the upper and lower ends of the membrane cloth 330 are respectively installed at the upper through pipe 310 and the lower through pipe 320, and the inside of the membrane cloth 330 is communicated with the inside of the upper through pipe 310 and the lower through pipe 320.
In this embodiment, there are a plurality of upper aeration pipes 420 and lower aeration pipes 430, which are sequentially distributed along the left-right direction, and at least one upper aeration pipe 420 and one lower aeration pipe 430 are arranged between every two adjacent filter membrane mechanisms 300; and at the same time, the air holes of the plurality of upper aeration pipes 420 are communicated in the same position, and the air holes of the plurality of lower aeration pipes 430 are communicated in the same position, so that the plurality of upper aeration pipes 420 are discharged in the same direction, and the plurality of lower aeration pipes 430 are discharged in the same direction, thereby avoiding mutual cancellation when facing the discharge.
In normal operation, the frame body 100 is fixed at the bottom of a tank, the filter membrane mechanisms 300 are all positioned in water, and sewage in the tank enters the filter membrane mechanisms 300 after being filtered by the filter membrane mechanisms 300 and is pumped out by an externally connected pump body. Meanwhile, the connection pipe 440 is at an initial position, the lower aeration pipe 430 is positioned below between the adjacent two filter membrane mechanisms 300, the first inner pipe 422 and the second inner pipe 432 are respectively engaged with the first vertical section 472 and the second vertical section 474 of the connection rod 470, and after gas enters from the gas inlet pipe 410, the gas enters the lower aeration pipe 430 through the connection pipe 440 and is discharged upward through the gas holes right above the lower aeration pipe 430. With the use of the filter membrane mechanism 300, macromolecular materials such as biological aggregates after the reaction are easily attached to the surface of the filter membrane mechanism, so that the water flow is affected, and the filter membrane mechanism needs to be cleaned regularly without disassembly. When the water pump is cleaned, the pump body is reversely rotated to pump water into the main pipe 230, so that water flows into the membrane cloth 330 after passing through the movable pipe group 220 or the fixed pipe group 210, flows outwards from the inside of the membrane cloth 330, and backflushes the membrane cloth 330; meanwhile, the movable tube set 220 drives the upper end of the filter membrane mechanism 300 to move downwards under the action of water flow, so that the membrane cloth 330 is in a relaxed state capable of generating fluctuation in water, and substances attached to the surface of the membrane cloth 330 are conveniently caused to fall off under mutual friction. Simultaneously, the driving piece is started to enable the connecting pipe 440 to move upwards, the lower aerator pipe 430 is driven to move upwards to a position between the two filter membrane mechanisms 300 and above the lower ends of the filter membrane mechanisms 300, and meanwhile, the upper aerator pipe 420 is positioned between the two filter membrane mechanisms 300 and below the upper ends of the filter membrane mechanisms 300; the first inner tube 422 of the upper aeration tube 420 is fitted with the upper curved section 471 of the connecting rod 470, and the second inner tube 432 of the lower aeration tube 430 is fitted with the lower curved section 473 of the connecting rod 470. The impeller 450 rotates under the action of the air in the air inlet pipe 410 and drives the crankshaft 460 to rotate, the eccentric shaft section 461 of the crankshaft 460 drives the connecting rod 470 to move up and down, and when the connecting rod 470 moves up and down relative to the connecting pipe 440, the connecting rod 470 drives the first inner pipe 422 and the second inner pipe 432 to move back and forth along the axial direction, the air holes at the left upper part and the air holes at the right upper part of the upper aeration pipe 420 are alternately communicated with air outlet, and the air holes at the left lower part and the air holes at the right lower part of the lower aeration pipe 430 are alternately communicated with air outlet. The upper aeration pipe 420 is used for accelerating the falling of attachments at the connection position of the upper end of the membrane cloth 330 and the upper through pipe 310, and the lower aeration pipe 430 is used for accelerating the falling of attachments at the connection position of the lower end of the membrane cloth 330 and the lower through pipe 320. After a period of cleaning, the driving member is started to enable the connecting pipe 440 to return to the initial position, and the pump body is enabled to rotate forward to pump water outwards from the main pipe 230 again, and the movable pipe group 220 drives the upper end of the filter membrane mechanism 300 to move upwards under the action of water flow suction, so that the membrane cloth 330 is restored to the diastole state.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the invention.
Claims (5)
1. The utility model provides a sewage treatment integrated form membrane module which characterized in that: comprises a frame body, a pipe frame mechanism, a filter membrane mechanism and an aeration system;
the filter membrane mechanisms are distributed at intervals along the left-right direction and are all arranged on the frame body through the pipe frame mechanism, the lower ends of the filter membrane mechanisms are fixed, and the upper ends of the filter membrane mechanisms can move up and down; the filter membrane mechanism is hollow and is communicated with the pipe rack mechanism, and the pipe rack mechanism is used for extracting sewage treated in the filter membrane mechanism and injecting water into the filter membrane mechanism, so that water flow is discharged from the filter membrane mechanism to the outside to recoil the outer surface of the filter membrane mechanism;
The aeration system comprises an air inlet pipe, an upper aeration pipe, a lower aeration pipe and a connecting pipe;
The air inlet pipe is fixedly arranged on the frame body, the connecting pipe is arranged on the frame body and communicated with the air inlet pipe, and the position of the connecting pipe in the vertical direction is adjustable;
the upper aeration pipe and the lower aeration pipe are communicated with the connecting pipe, are arranged along the front-back direction and synchronously move up and down along with the connecting pipe;
The aeration system is provided with an aeration state and a cleaning state, and in the aeration state, the lower aeration pipe is positioned below the space between the two adjacent filter membrane mechanisms and is used for exhausting air upwards from the space between the two adjacent filter membrane mechanisms; in the cleaning state of the aeration system, the lower aeration pipe is positioned above the lower ends of the filter membrane mechanisms and alternately vents to the left lower side and the right lower side between the two filter membrane mechanisms, and the upper aeration pipe is positioned below the upper ends of the filter membrane mechanisms and alternately vents to the left upper side and the right upper side between the two filter membrane mechanisms;
The upper aeration pipe comprises a first outer pipe and a first inner pipe, the first outer pipe and the first inner pipe are coaxial and sleeved outside the first inner pipe, the first outer pipe is arranged on the connecting pipe, and the first inner pipe can axially slide relative to the first outer pipe; the upper left and upper right of the first outer tube and the first inner tube are respectively provided with air holes, and the air holes on the first outer tube and the first inner tube are different in interval in the axial direction of the first inner tube so as to alternately enable the air holes on the upper left to be communicated and the air holes on the upper right to be communicated when the first outer tube and the first inner tube slide in a reciprocating manner relative to each other in the axial direction;
The lower aeration pipe comprises a second outer pipe and a second inner pipe, the second outer pipe and the second inner pipe are coaxial and sleeved outside the second inner pipe, the second outer pipe is arranged on the connecting pipe, and the second inner pipe can axially slide relative to the second outer pipe; the left lower part, the right lower part and the right upper part of the second outer pipe and the second inner pipe are respectively provided with air holes, and the air holes on the second outer pipe and the second inner pipe are different in interval in the axial direction of the second inner pipe so as to alternately enable the air holes at the left lower part to be communicated and the air holes at the right lower part to be communicated when the second outer pipe and the second inner pipe slide relatively in the axial direction;
In the aeration state of the aeration system, the air holes on the first outer pipe and the first inner pipe are not communicated, the air holes on the second outer pipe and the second inner pipe which are positioned right above are communicated, and the first outer pipe and the first inner pipe, the second outer pipe and the second inner pipe do not reciprocate; in a cleaning state, the first outer tube and the first inner tube axially reciprocate to alternately communicate air holes at the left lower part and air holes at the right lower part of the upper aeration tube, and the second outer tube and the second inner tube axially reciprocate to alternately communicate air holes at the left lower part and air holes at the right lower part of the lower aeration tube;
The aeration system also comprises an impeller, a crankshaft and a connecting rod, wherein the impeller is connected with the crankshaft and is arranged in the air inlet pipe, and the impeller drives the crankshaft to rotate when gas in the air inlet pipe passes through the impeller; the crankshaft is provided with a plurality of eccentric shaft sections which are not coaxial with the impeller; the connecting rod is arranged on the connecting pipe in a vertical sliding way, and the connecting rod and the eccentric shaft section can slide back and forth and are synchronously connected in a vertical moving way, so that the connecting rod is driven to move up and down when the crankshaft rotates; the first inner tube and the second inner tube pass through the connecting tube and are in sliding sleeve joint with the connecting rod; the connecting rod comprises an upward bent section, a first vertical section, a downward bent section and a second vertical section which are sequentially arranged from top to bottom, and when the first inner pipe and the second inner pipe are respectively matched with the first vertical section and the second vertical section, air holes on the first outer pipe and the first inner pipe are not communicated, and air holes on the second outer pipe and the second inner pipe which are positioned right above are communicated; when the first inner tube is matched with the upper curved section, the up-and-down movement of the connecting rod can drive the first inner tube to axially slide relative to the first outer tube; when the second inner tube is matched with the lower curved section, the up-and-down movement of the connecting rod can drive the second inner tube to slide relative to the second outer tube;
The aeration system also comprises a driving piece, wherein the driving piece is arranged on the frame body and is used for driving the connecting pipe to move up and down; in the aeration state of the aeration system, the connecting pipe enables the first inner pipe of the upper aeration pipe to be matched with the first vertical section of the connecting rod, and enables the second inner pipe of the lower aeration pipe to be matched with the second vertical section of the connecting rod, and the lower aeration pipe is positioned below the lower end of the filter membrane mechanism; under the cleaning state of the aeration system, the connecting pipe drives the upper aeration pipe and the lower aeration pipe to synchronously move upwards to: the first inner tube of the upper aeration tube is matched with the upper curved section of the connecting rod, the second inner tube of the lower aeration tube is matched with the lower curved section of the connecting rod, the upper aeration tube is positioned below the upper end of the filter membrane mechanism, and the lower aeration tube is positioned above the lower end of the filter membrane mechanism;
The pipe support mechanism comprises a fixed pipe group, a movable pipe group and a main pipe, wherein the main pipe is fixed relative to the support body and is communicated with the fixed pipe group and the movable pipe group; the fixed tube group is fixedly arranged on the frame body, the movable tube group can be movably arranged on the frame body up and down, and the movable tube group is positioned above the fixed tube group; the upper end of each filter membrane mechanism is arranged on the movable tube group, the lower end of each filter membrane mechanism is arranged on the fixed tube group, the inside of each filter membrane mechanism is communicated with the fixed tube group and the movable tube group, and sewage is discharged to a main pipe from the fixed tube group and the movable tube group after being treated by the filter membrane mechanisms;
The movable pipe group is provided with a piston cylinder which is connected with the main pipe in a vertically movable way, a piston block is fixedly arranged in the main pipe, and the piston block is used for preventing water flow from flowing between the main pipe and the movable pipe group when being matched with the piston cylinder; an elastic component is arranged between the movable tube group and the frame body, and the elastic component promotes the movable tube group to move to the position where the piston cylinder is matched with the piston block; the main pipe is externally connected with a pump body, water is pumped outwards from the main pipe when the pump body rotates forwards, and water is pumped into the main pipe when the pump body rotates reversely; when the pump body pumps water outwards from the main pipe, the piston cylinder is firstly pumped upwards to enable the movable pipe group to move upwards until the piston block is staggered with the piston cylinder, and meanwhile, the movable pipe group drives the upper end of the filter membrane mechanism to move upwards to enable the filter membrane mechanism to relax; when the pump body pumps water into the main pipe, the piston cylinder is pushed upwards to enable the movable pipe group to move downwards until the piston block is staggered with the piston cylinder, and meanwhile, the movable pipe group drives the upper end of the filter membrane mechanism to move downwards to enable the filter membrane mechanism to be loosened.
2. The integrated membrane module for wastewater treatment of claim 1, wherein: the filter membrane mechanism comprises an upper through pipe, a lower through pipe and membrane cloth, wherein the upper through pipe is arranged on the movable pipe group and communicated with the movable pipe group, and the lower through pipe is arranged on the fixed pipe group and communicated with the fixed pipe group; the upper and lower ends of the membrane cloth are respectively arranged on the upper through pipe and the lower through pipe, and the inside of the membrane cloth is communicated with the inside of the upper through pipe and the inside of the lower through pipe.
3. The integrated membrane module for wastewater treatment of claim 1, wherein: the upper aeration pipes and the lower aeration pipes are all multiple and distributed in turn along the left-right direction, and at least one upper aeration pipe and one lower aeration pipe are arranged between every two adjacent filter membrane mechanisms.
4. The integrated membrane module for wastewater treatment of claim 1, wherein: the piston cylinder is connected with the main pipe through a telescopic corrugated pipe, and the corrugated pipe is communicated with the piston cylinder and the inside of the main pipe.
5. The integrated membrane module for wastewater treatment of claim 1, wherein: the air inlet pipe is communicated with the connecting pipe through a telescopic corrugated pipe or a flexible pipe.
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