CN113731177A - Tank-type membrane filtration equipment and water treatment equipment - Google Patents
Tank-type membrane filtration equipment and water treatment equipment Download PDFInfo
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- CN113731177A CN113731177A CN202111172812.0A CN202111172812A CN113731177A CN 113731177 A CN113731177 A CN 113731177A CN 202111172812 A CN202111172812 A CN 202111172812A CN 113731177 A CN113731177 A CN 113731177A
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- water
- partition plate
- membrane filtration
- plate
- tank
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 113
- 238000005374 membrane filtration Methods 0.000 title claims abstract description 28
- 238000005192 partition Methods 0.000 claims abstract description 41
- 238000004519 manufacturing process Methods 0.000 claims abstract description 22
- 238000011010 flushing procedure Methods 0.000 claims abstract description 20
- 239000012528 membrane Substances 0.000 claims description 29
- 238000001914 filtration Methods 0.000 claims description 25
- 230000006835 compression Effects 0.000 claims description 10
- 238000007906 compression Methods 0.000 claims description 10
- 239000002356 single layer Substances 0.000 claims description 7
- -1 polypropylene Polymers 0.000 claims description 6
- 238000001471 micro-filtration Methods 0.000 claims description 5
- 238000000108 ultra-filtration Methods 0.000 claims description 5
- 239000004952 Polyamide Substances 0.000 claims description 3
- 239000004743 Polypropylene Substances 0.000 claims description 3
- 229920002678 cellulose Polymers 0.000 claims description 3
- 239000001913 cellulose Substances 0.000 claims description 3
- 229920002647 polyamide Polymers 0.000 claims description 3
- 229920000728 polyester Polymers 0.000 claims description 3
- 229920000098 polyolefin Polymers 0.000 claims description 3
- 229920001155 polypropylene Polymers 0.000 claims description 3
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 3
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 2
- 239000011159 matrix material Substances 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 5
- 238000009434 installation Methods 0.000 abstract description 5
- 238000012423 maintenance Methods 0.000 abstract description 4
- 238000009826 distribution Methods 0.000 abstract description 3
- 238000004140 cleaning Methods 0.000 description 9
- 238000011001 backwashing Methods 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 238000005406 washing Methods 0.000 description 4
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 description 3
- 239000012459 cleaning agent Substances 0.000 description 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000012510 hollow fiber Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000005708 Sodium hypochlorite Substances 0.000 description 1
- 244000052616 bacterial pathogen Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 229920002521 macromolecule Polymers 0.000 description 1
- 238000001728 nano-filtration Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000001223 reverse osmosis Methods 0.000 description 1
- SUKJFIGYRHOWBL-UHFFFAOYSA-N sodium hypochlorite Chemical compound [Na+].Cl[O-] SUKJFIGYRHOWBL-UHFFFAOYSA-N 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 230000037303 wrinkles Effects 0.000 description 1
Images
Classifications
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- 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
- B01D61/147—Microfiltration
-
- 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
- B01D61/20—Accessories; Auxiliary operations
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2201/00—Apparatus for treatment of water, waste water or sewage
- C02F2201/002—Construction details of the apparatus
Abstract
The invention discloses a tank type membrane filtration device which comprises a cover body, a tank body and a partition plate, wherein the cover body is positioned at the top of the tank body, the partition plate divides the cover body and the tank body into an upper cavity and a lower cavity which are independent, a positioning plate and a plurality of filter columns are arranged in the lower cavity, the filter columns are mutually parallel and closely arranged between the partition plate and the positioning plate, an upper connector is arranged at the top of the cover body, and vent holes are formed in the partition plate. The invention has reasonable and compact structure and small occupied area; the membrane filtration equipment adopts a plurality of filter columns to uniformly feed water, produce water, flush and drain water, thereby saving pipelines and pipe fittings, reducing the head loss, improving the water and gas distribution uniformity and lowering the manufacturing cost; after the partition plate is ribbed, the strength of the partition plate is obviously enhanced, the plate thickness is reasonably reduced on the premise of meeting the structural stress requirement, and the manufacturing cost is further reduced; the positioning plate effectively solves the problem of positioning the filter column, and is convenient for equipment installation, operation and maintenance; the impact type flushing mode can improve the flushing effect, save a back flushing water tank and a back flushing water pump and further reduce the manufacturing cost.
Description
Technical Field
The invention belongs to the technical field of water treatment equipment, and particularly relates to tank-type membrane filtration equipment for municipal water supply treatment and water treatment equipment.
Background
Microfiltration and ultrafiltration are membrane filtration technologies driven by pressure, can effectively remove suspended particles, colloids, turbidity, pathogenic bacteria and other macromolecular substances in water, and have lower required operating pressure compared with nanofiltration and reverse osmosis membrane treatment technologies, thereby having great application potential in the field of water treatment.
At present, microfiltration membranes and ultrafiltration membranes mainly adopt a hollow fiber form for municipal water supply treatment in the market, hollow fiber membrane filaments are generally arranged in a shell to form membrane elements, and then water inlet, water production, flushing and other ports of a plurality of membrane elements are respectively connected by pipelines to form a membrane stack.
Disclosure of Invention
In view of the above, the present invention provides a tank type membrane filtration apparatus and a water treatment apparatus, so as to solve the deficiencies in the prior art.
In order to achieve the purpose, the invention is realized by the following technical scheme:
on the one hand, provide a tank-type membrane filtration equipment, including lid, jar body and division board, the lid is located the top of the jar body, the division board will the lid with independent last cavity and lower cavity are separated into to the jar body, be equipped with locating plate and a plurality of filter column in the lower cavity, the filter column is parallel to each other closely arrange in the division board with between the locating plate, the top of lid is equipped with the interface to admit air on connecting the outside, outside product water, outside wash water pipe and the outside exhaust pipe of going up, set up a plurality of air vents on the division board, admit air and outside exhaust pipe down in order to connect the outside, the bottom of the jar body is equipped with down the interface to connect outside intake, outside wash water pipe and outside blow-down pipe.
According to the tank-type membrane filtering equipment, the perforated water collecting pipe is arranged inside the filtering column, the filtering membrane covers the outside of the filtering column, and the filtering membrane is directly wrapped outside the perforated water collecting pipe or is wrapped outside the perforated water collecting pipe in a folded mode.
According to the tank type membrane filtration equipment, the filtration membrane adopts an external pressure type ultrafiltration or microfiltration membrane, and is made of polyolefin, polyamide, cellulose, polyester, polypropylene or polytetrafluoroethylene.
According to the tank-type membrane filtering equipment, the top of the filtering column is provided with a water producing port for the filtered water collected by the perforated water collecting pipe to flow out.
The tank-type membrane filtration equipment is characterized in that a plurality of pull rods are arranged in the lower chamber, and the positioning plate is suspended at the lower part of the separation plate through the pull rods.
The tank-type membrane filtration equipment is characterized in that a plurality of filter column mounting holes and upper pull rod mounting holes are formed in the partition plate, water holes, filter column positioning holes and lower pull rod mounting holes are formed in the positioning plate, connecting keys capable of being embedded in the filter column positioning holes are arranged at the bottoms of the filter columns, the filter column mounting holes comprise upper hole cavities with upper hole diameters and lower hole cavities with lower hole diameters, the upper hole diameters are larger than the lower hole diameters, the lower hole diameters are slightly larger than the outer diameters of the filter columns, compression nuts are arranged in the upper hole cavities, the middle parts of the compression nuts are hole structures, and the hole structures are communicated with the water production ports.
According to the tank-type membrane filtration equipment, the spacing distance between the positioning plate and the inner wall of the tank body is 5-10 mm.
According to the tank type membrane filtering device, the separation plate is a single-layer plate, or ribs are welded on the single-layer plate.
As the tank type membrane filtration equipment, the ribs are arranged in a # -shaped, triangular or circular shape.
In another aspect, there is provided a water treatment apparatus comprising a canister membrane filtration apparatus as claimed in any one of the preceding claims.
The technical scheme of the invention has the beneficial effects that:
1. the filter columns are reasonably and compactly arranged, and the occupied area is small;
2. the membrane filtration equipment adopts a plurality of filter columns to uniformly feed water, produce water, flush and drain water, thereby saving pipelines and pipe fittings, reducing the head loss, improving the water and gas distribution uniformity and lowering the manufacturing cost;
3. the partition plate ribbed method can obviously strengthen the strength of the plate, reasonably reduce the plate thickness on the premise of meeting the structural stress requirement, and further reduce the manufacturing cost;
4. the positioning plate effectively solves the problem of positioning the filter column, and is convenient for installation, operation and maintenance of equipment;
5. the adopted impact type washing mode can improve the washing effect, save a back washing water tank and a back washing water pump and further reduce the manufacturing cost.
Drawings
To further illustrate the above objects, structural features and effects of the present invention, the present invention will be described in detail below with reference to the accompanying drawings.
FIG. 1 is a cross-sectional view of a canister type membrane filtration apparatus according to a preferred embodiment of the present invention;
FIG. 2 is a cross-sectional view of a filter column according to a preferred embodiment of the present invention;
FIG. 3 is a top view of a filter column according to a preferred embodiment of the present invention;
FIG. 4 is a bottom view of the divider plate in accordance with the preferred embodiment of the present invention;
FIG. 5 is a sectional view taken along line A-A of the divider plate of the preferred embodiment of the present invention;
FIG. 6 is a detailed view of the installation of the filter column and the partition plate according to the preferred embodiment of the present invention;
FIGS. 7a and 7b are a cross-sectional view and a top view, respectively, of a compression nut in accordance with a preferred embodiment of the present invention;
FIG. 8 is a top view of the positioning plate according to the preferred embodiment of the present invention;
FIG. 9 is a schematic view of a divider plate ribbed in accordance with a preferred embodiment of the present invention;
wherein: 1. a cover body; 2. a partition plate; 3. a tank body; 5. positioning a plate; 6. a pull rod; 7. filtering columns; 8. a lower interface; 9. a lower flushing water pipe; 10. an emptying pipe; 11. an upper interface; 12. an upper flushing water pipe; 13. an upper exhaust pipe; 14. a lower exhaust pipe; 15. lifting lugs; 16. supporting legs; 17. a connecting bond; 18. a water producing port; 19. a vent hole; 20. a filter column mounting hole; 21. an upper pull rod mounting hole; 22. positioning holes of the filter columns; 23. a lower pull rod mounting hole; 24. water passing holes; 25. a compression nut; 28. a filtration membrane; 29. perforating a water collecting pipe; 30. and (4) ribs.
Detailed Description
The invention is further described below with reference to the figures and examples. Advantages and features of the present invention will become apparent from the following description and from the claims. It is to be noted that the drawings are in a very simplified form and are not to precise scale, which is merely for the purpose of facilitating and distinctly claiming the embodiments of the present invention.
Referring to fig. 1, 5 and 6, the tank type membrane filtration device of the present invention mainly comprises a tank body 3, a cover body 1 and a partition plate 2, wherein the cover body 1 is positioned on the top of the tank body 3, the cover body 1 and the tank body 3 are divided into an upper chamber and a lower chamber by the partition plate 2, the lower chamber is provided with a positioning plate 5 and a plurality of filter columns 7, and the filter columns 7 are closely arranged between the partition plate 2 and the positioning plate 5 in parallel. The top of lid 1 is equipped with interface 11 for admit air on the outside, outside product water and outside on wash pipe 12, outside go up the link up of exhaust pipe 13, the bottom of jar body 3 sets up down interface 8, a link up of wash pipe 9, outside blow-down pipe 10 under for the outside is intake, set up a plurality of air vents 19 on the division board 2, a link up of exhaust pipe 14 under for the outside is intake and outside down, realize the unified of many filter columns 7 and intake, product water, wash and the drainage. Preferably, the cover body 1 is provided with a lifting lug 15 for facilitating equipment installation and maintenance, and the lower part of the tank body 3 is provided with a supporting leg 16.
As shown in fig. 1, 2, 3, 4, 6, 7a, 7b and 8, a perforated water collecting pipe 29 is disposed inside the filtering column 7, a filtering membrane 28 is covered outside the filtering column, the filtering membrane 28 may be an external pressure type ultrafiltration or microfiltration membrane, the membrane may be made of polyolefin, polyamide, cellulose, polyester, polypropylene or polytetrafluoroethylene, or other materials capable of providing filtering effect, and the filtering membrane 28 may be arranged in a manner that the perforated water collecting pipe 29 is wrapped with wrinkles or directly wrapped outside the perforated water collecting pipe 29.
The top of the filtering column 7 is provided with a water producing port 18 for the filtered water collected by the perforated water collecting pipe 29 to flow out. A plurality of pull rods 6 are arranged in the lower cavity, and the positioning plate 5 is suspended at the lower part of the partition plate 2 through the pull rods 6.
As shown in fig. 4, 5, 6, 7a, 7b and 9, the partition plate 2 is provided with a plurality of vent holes 19, filter column mounting holes 20 and upper tie rod mounting holes 21, the vent holes 19 are used for air intake and exhaust of the space below the partition plate 2, one end of each vent hole 19 is arranged at the edge of the partition plate 2, and the other end is arranged at the lower part of the partition plate 2, and the number of the vent holes 19 can be 3 or more.
As shown in fig. 8, the positioning plate 5 is provided with a water through hole 24, a filter column positioning hole 22 and a lower pull rod mounting hole 23, when the positioning plate is mounted, the pull rod 6 penetrates through the positioning plate 5 and the partition plate 2, and the positioning plate 5 is arranged at the lower part of the partition plate 2 in a hanging manner. The positioning plate 5 is not in direct contact with the inner wall of the tank body 3, and preferably, the spacing distance is 5-10 mm.
The bottom of the filter column 7 is provided with a water-proof device which can be embedded in the filter column positioning hole 22 and is used for fixing the position of the filter column 7. The filter column mounting hole 20 comprises an upper hole cavity with an upper hole diameter and a lower hole cavity with a lower hole diameter, the upper hole diameter is larger than the lower hole diameter, the lower hole diameter is slightly larger than the outer diameter of the filter column 7 and is used for mounting the filter column 7, a compression nut 25 is arranged in the upper hole cavity, the compression nut 25 is used for fixing the filter column 7, the middle part of the compression nut 25 is of a hole structure, the hole structure is communicated with the water production port 18, and the water production port 18 at the top of the filter column 7 is not shielded while the filter column 7 is fixed.
The connecting key 17 at the lower part of the filter column 7 is nested in the filter column positioning hole 22 reserved in the positioning plate 5, the upper end of the filter column 7 is nested in the filter column mounting hole 20 reserved in the partition plate 2, the positioning plate 5 is suspended at the lower part of the partition plate 2 by a plurality of pull rods 6, and the compression nut 25 is mounted at the upper part of the filter column mounting hole 20 reserved in the partition plate 2, so that the filter column 7 is fixed.
The partition plate 2 is arranged between the cover body 1 and the tank body 3 and is clamped and fixed by a flange. The partition plate 2 may be a single-layer plate, or ribs 30 may be welded to the single-layer plate to reduce the thickness of the single-layer plate and reduce the manufacturing cost. The ribs 30 may be arranged in a matrix pattern, or may be arranged in a triangular or circular pattern.
As shown in fig. 1, 4 and 8, the tie rods 6 are installed between the positioning plate 5 and the partition plate 2, preferably, the diameter of the tie rods is 20-40 mm, the number of the tie rods is 4-20, the tie rods can be made of stainless steel, and the tie rods are fixed with the positioning plate 5 and the partition plate 2 by screws.
During water treatment, the emptying pipe 10 is closed, and the water inlet and lower flushing water pipe 9, the upper air inlet and production water and upper flushing water pipe 12, the upper exhaust pipe 13 and the lower air inlet and lower exhaust pipe 14 are opened. The water to be treated enters the tank body 3 through the water inlet and lower flushing water pipe 9, enters the external space of the filter column 7 through the water through hole 24 of the positioning plate 5 or the gap between the positioning plate 5 and the tank body 3, when the water level rises to the lower part of the partition plate 2, the lower air inlet and the lower exhaust pipe 14 are closed, the water inlet is filtered through the filter membrane 28, the produced water enters the inner perforated water collecting pipe 29, enters the independent cavity formed by the cover body 1 and the partition plate 2 through the water producing port 18 at the top of the filter column 7, when the water level rises to the bottom of the upper exhaust pipe 13, the upper exhaust pipe 13 is closed, and the produced water is led out through the upper air inlet, the produced water and the upper flushing water pipe 12.
The rinsing is divided into physical cleaning and chemical cleaning. When in physical cleaning, the upper air inlet, water production and upper flushing water pipe 12, the upper exhaust pipe 13, the water inlet and lower flushing water pipe 9 are closed, the lower air inlet and lower exhaust pipe 14 and the vent pipe 10 are opened, the air with the pressure of about 0.2MPa enters the upper part of the space enclosed by the tank body 3 and the partition plate 2 through the air inlet and lower exhaust pipe 14, when the volume of the gas is about 1/4, stopping gas intake, closing the gas intake and exhaust pipes 14, opening the upper gas intake, water production and upper flushing water pipes 12, and allowing the gas with the pressure of about 0.6MPa to enter the space enclosed by the cover body 1 and the partition plate 2 through the upper gas intake, water production and upper flushing water pipes 12, so as to push the water therein to rapidly drain downwards, and then to be discharged through the water production port 18 at the top of the filter column 7, the perforated water collecting pipe 29, the filter membrane 28, the water passing hole 24 of the positioning plate 5 or the gap between the positioning plate 5 and the tank body 3, and the vent pipe 10, so as to realize the cleaning of the pollutants accumulated on the surface of the filter membrane 28. When chemically cleaning, the vent pipe 10 is closed, and the inlet and lower wash water pipes 9, the upper inlet, product and upper wash water pipes 12, the upper vent pipe 13, and the lower inlet and lower vent pipe 14 are opened. The solution added with the cleaning agent enters the tank body 3 through the water inlet and the lower flushing pipe 9, enters the external space of the filter column 7 through the water through hole 24 of the positioning plate 5 or a gap between the positioning plate 5 and the tank body 3, when the water level rises to the lower part of the partition plate 2, the lower air inlet and the lower exhaust pipe 14 are closed, the solution added with the cleaning agent is filtered through the filter membrane 28, the filtered water enters the inner perforated water collecting pipe 29, the filtered water enters the independent cavity formed by the cover body 1 and the partition plate 2 through the water production port 18 at the top of the filter column 7, when the water level rises to the bottom of the upper exhaust pipe 13, the upper exhaust pipe 13 is closed, the filtered water is guided out to the external chemical cleaning water tank through the upper air inlet, the water production and the flushing pipe 12, and then enters the water inlet and the lower flushing pipe 9 for circular cleaning. The chemical cleaning agent can be sodium hypochlorite, sodium hydroxide, citric acid or hydrochloric acid. Before and after the chemical cleaning, physical cleaning is required.
The filter columns are reasonably and compactly arranged, and the occupied area is small; the membrane filtration equipment adopts a plurality of filter columns to uniformly feed water, produce water, flush and drain water, thereby saving pipelines and pipe fittings, reducing the head loss, improving the water and gas distribution uniformity and lowering the manufacturing cost; the partition plate ribbed method can obviously strengthen the strength of the plate, reasonably reduce the plate thickness on the premise of meeting the structural stress requirement, and further reduce the manufacturing cost; the positioning plate effectively solves the problem of positioning the filter column, and is convenient for installation, operation and maintenance of equipment; the adopted impact type washing mode can improve the washing effect, save a back washing water tank and a back washing water pump and further reduce the manufacturing cost.
While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention.
Claims (10)
1. The tank type membrane filtration equipment is characterized by comprising a cover body (1), a tank body (3) and a partition plate (2), wherein the cover body (1) is positioned at the top of the tank body (3), the partition plate (2) is used for separating the cover body (1) and the tank body (3) into an independent upper cavity and a lower cavity, a positioning plate (5) and a plurality of filter columns (7) are arranged in the lower cavity, the filter columns (7) are mutually and tightly arranged between the partition plate (2) and the positioning plate (5), the top of the cover body (1) is provided with an upper connector (11) to connect the external upper air inlet, the external water production, the external upper flushing water pipe (12) and the external upper air outlet pipe (13), the partition plate (2) is provided with a plurality of air vents (19) to connect the external lower air inlet and the external lower air outlet pipe (14), the bottom of the tank body (3) is provided with a lower connector (8), to connect the external water inlet, external lower flushing pipe (9) and external blow-down pipe (10).
2. The canister membrane filtration apparatus according to claim 1, wherein a perforated water collecting pipe (29) is provided inside the filtration column (7), a filtration membrane (28) is covered outside the filtration column (7), and the filtration membrane (28) is directly wrapped outside the perforated water collecting pipe (29) or is folded and wrapped outside the perforated water collecting pipe (29).
3. The tank type membrane filtration device according to claim 2, wherein the filtration membrane (28) is an external pressure type ultrafiltration or microfiltration membrane, and the material of the filtration membrane (28) is polyolefin, polyamide, cellulose, polyester, polypropylene or polytetrafluoroethylene.
4. The canister membrane filtration apparatus according to claim 2, wherein the top of the filtration column (7) is provided with a water producing port (18) for the outflow of filtered water collected by the perforated water collecting pipe (29).
5. The canister membrane filtration device according to claim 1 or 4, wherein a plurality of tie rods (6) are provided in the lower chamber, and the positioning plate (5) is suspended from the lower portion of the partition plate (2) by the tie rods (6).
6. The canister type membrane filtration apparatus according to claim 5, wherein the partition plate (2) is provided with a plurality of filter column mounting holes (20) and upper pull rod mounting holes (21), the positioning plate (5) is provided with water passing holes (24), filter column positioning holes (22) and lower pull rod mounting holes (23), the bottom of the filter column (7) is provided with a connecting key (17) which can be embedded in the filter column positioning holes (22), the filter column mounting holes (20) comprise an upper hole cavity with an upper aperture diameter and a lower hole cavity with a lower aperture diameter, the upper aperture diameter is larger than the lower aperture diameter, the lower aperture diameter is slightly larger than the outer diameter of the filter column (7), a compression nut (25) is arranged in the upper hole cavity, the middle part of the compression nut (25) is provided with a hole structure, and the hole structure is communicated with the water producing port (18).
7. The canister type membrane filtration apparatus according to claim 1, wherein the distance between the location plate (5) and the inner wall of the canister body (3) is 5 to 10 mm.
8. The tank membrane filtration plant according to claim 1, wherein the partition plate (2) is a single-layer plate or ribs (30) are welded to the single-layer plate.
9. The canister membrane filtration device according to claim 8, wherein the ribs (30) are arranged in a matrix, triangle or circle.
10. A water treatment apparatus comprising the canister type membrane filtration apparatus according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111172812.0A CN113731177A (en) | 2021-10-08 | 2021-10-08 | Tank-type membrane filtration equipment and water treatment equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111172812.0A CN113731177A (en) | 2021-10-08 | 2021-10-08 | Tank-type membrane filtration equipment and water treatment equipment |
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| Publication Number | Publication Date |
|---|---|
| CN113731177A true CN113731177A (en) | 2021-12-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111172812.0A Pending CN113731177A (en) | 2021-10-08 | 2021-10-08 | Tank-type membrane filtration equipment and water treatment equipment |
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| WO2018236380A1 (en) * | 2017-06-22 | 2018-12-27 | Fmc Technologies, Inc. | Subsea seawater filtration apparatus |
| CN113274881A (en) * | 2021-06-29 | 2021-08-20 | 迈海(苏州)环保科技有限公司 | Flexible tubular large-aperture membrane filter device and cleaning method thereof |
| CN113371792A (en) * | 2021-07-20 | 2021-09-10 | 武汉众源之水净化设备有限公司 | Industrial multi-branch parallel stainless steel ultrafiltration tank |
-
2021
- 2021-10-08 CN CN202111172812.0A patent/CN113731177A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030057155A1 (en) * | 1999-09-29 | 2003-03-27 | Hidayat Husain | Ultrafiltration and microfiltration module and system |
| CN105771659A (en) * | 2016-05-13 | 2016-07-20 | 浙江至美环境科技有限公司 | Detachable ultrafiltration filter |
| WO2018236380A1 (en) * | 2017-06-22 | 2018-12-27 | Fmc Technologies, Inc. | Subsea seawater filtration apparatus |
| CN113274881A (en) * | 2021-06-29 | 2021-08-20 | 迈海(苏州)环保科技有限公司 | Flexible tubular large-aperture membrane filter device and cleaning method thereof |
| CN113371792A (en) * | 2021-07-20 | 2021-09-10 | 武汉众源之水净化设备有限公司 | Industrial multi-branch parallel stainless steel ultrafiltration tank |
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