CN117088432A - Bidirectional flow double-function filter tank - Google Patents
Bidirectional flow double-function filter tank Download PDFInfo
- Publication number
- CN117088432A CN117088432A CN202311104978.8A CN202311104978A CN117088432A CN 117088432 A CN117088432 A CN 117088432A CN 202311104978 A CN202311104978 A CN 202311104978A CN 117088432 A CN117088432 A CN 117088432A
- Authority
- CN
- China
- Prior art keywords
- tank
- filter
- water
- filter tank
- ultrafiltration membrane
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000002457 bidirectional effect Effects 0.000 title claims abstract description 37
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 262
- 239000000463 material Substances 0.000 claims abstract description 131
- 239000012528 membrane Substances 0.000 claims abstract description 104
- 238000000108 ultra-filtration Methods 0.000 claims abstract description 91
- 239000004576 sand Substances 0.000 claims abstract description 43
- 238000011010 flushing procedure Methods 0.000 claims abstract description 34
- 230000001174 ascending effect Effects 0.000 claims abstract description 12
- 238000009826 distribution Methods 0.000 claims description 44
- 238000001914 filtration Methods 0.000 claims description 26
- 238000005406 washing Methods 0.000 claims description 20
- 238000007599 discharging Methods 0.000 claims description 15
- 230000001360 synchronised effect Effects 0.000 claims description 5
- 239000002351 wastewater Substances 0.000 claims description 3
- 230000009977 dual effect Effects 0.000 claims 7
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract description 42
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract description 6
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 abstract description 6
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 abstract description 6
- 239000011572 manganese Substances 0.000 abstract description 6
- 229910052748 manganese Inorganic materials 0.000 abstract description 6
- 239000000126 substance Substances 0.000 abstract description 5
- 229910052742 iron Inorganic materials 0.000 abstract description 3
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 abstract description 3
- 238000004140 cleaning Methods 0.000 abstract description 2
- 230000003014 reinforcing effect Effects 0.000 abstract 1
- 238000001179 sorption measurement Methods 0.000 description 11
- 239000007789 gas Substances 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000010865 sewage Substances 0.000 description 4
- 239000010802 sludge Substances 0.000 description 4
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 3
- 229910000616 Ferromanganese Inorganic materials 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- DALUDRGQOYMVLD-UHFFFAOYSA-N iron manganese Chemical compound [Mn].[Fe] DALUDRGQOYMVLD-UHFFFAOYSA-N 0.000 description 2
- 244000005700 microbiome Species 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 238000011001 backwashing Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 210000005056 cell body Anatomy 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 239000008399 tap water Substances 0.000 description 1
- 235000020679 tap water Nutrition 0.000 description 1
Classifications
-
- 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
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D24/00—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof
- B01D24/02—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof with the filter bed stationary during the filtration
- B01D24/10—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof with the filter bed stationary during the filtration the filtering material being held in a closed container
- B01D24/12—Downward filtration, the filtering material being supported by pervious surfaces
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D24/00—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof
- B01D24/46—Regenerating the filtering material in the filter
- B01D24/4631—Counter-current flushing, e.g. by air
-
- 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
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/283—Treatment of water, waste water, or sewage by sorption using coal, charred products, or inorganic mixtures containing them
-
- 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
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/16—Nitrogen compounds, e.g. ammonia
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/20—Heavy metals or heavy metal compounds
- C02F2101/203—Iron or iron compound
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/20—Heavy metals or heavy metal compounds
- C02F2101/206—Manganese or manganese compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/14—Maintenance of water treatment installations
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/16—Regeneration of sorbents, filters
Landscapes
- Chemical & Material Sciences (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)
- Chemical Kinetics & Catalysis (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The application relates to a bidirectional flow dual-function filter tank, which comprises a filter material filter tank, a filter tank and an auxiliary flushing system, wherein the filter material filter tank and the filter tank are adjacently and commonly built, water to be filtered sequentially passes through the filter material filter tank and the filter tank in a mode of ascending, descending and ascending, and then is produced, and the auxiliary flushing system is used for flushing the filter material filter tank and the filter tank. The filter material filter tank such as upflow activated carbon, manganese sand, ceramsite and the like can be built together with an upper water inlet ultrafiltration membrane tank in an adhering way, so that a upflow dual-function filter tank with different functions of removing organic matters, removing iron and manganese, removing ammonia nitrogen and the like is formed, or the ultrafiltration membrane tank is changed into a dual-flow dual-function filter tank of a sand filter tank. The other form is that the filter material filter tank which descends firstly and ascends later is combined with the ultrafiltration membrane tank, a bidirectional flow dual-function filter tank is also formed, water enters from the lower part of the ultrafiltration membrane tank, water can enter from the lower part and is discharged from the upper part continuously during back flushing of the ultrafiltration membrane, and the functions of reinforcing and removing dirty substances upwards, cleaning the water quality in the tank and reducing the lower water discharge are achieved.
Description
Technical Field
The application relates to the technical field of water supply treatment, in particular to a bidirectional flow dual-functional filter tank for advanced treatment of a water supply plant, treatment of a sewage plant and special water treatment, which is more suitable for small and medium-sized village and town water plants.
Background
At present, the advanced treatment of a tap water plant, the treatment of a sewage plant and the treatment of special water are mainly carried out by adopting an ozone biological activated carbon process, and the ozone biological activated carbon process has better removal rate for natural organic matters and ammonia nitrogen in raw water. The form of the biological activated carbon adsorption tank in the ozone biological activated carbon process comprises a downward flow fixed bed and an upward flow fluidized bed. The biological activated carbon adsorption tanks adopting the downward flow fixed bed are more common, but in recent years, the biological activated carbon adsorption tanks of the upward flow fluidized bed are gradually popularized and used. Compared with the traditional biological activated carbon adsorption tank of a downward flow fixed bed, the biological activated carbon adsorption tank of the upward flow fluidized bed has more advantages: the expansion rate of the upward flow activated carbon adsorption tank is good, the expansion rate of the upward flow activated carbon adsorption tank can reach 30% -50%, the higher expansion rate can ensure that the activated carbon fully plays a role, and the removal rate of organic matters is improved; secondly, the use efficiency of the upward flow activated carbon adsorption tank is high, the flow speed is high, and the occupied area is small; thirdly, the head loss of the upward flow activated carbon adsorption tank is relatively small, which is about 1.0 m-1.2 m.
Although the upward-flowing activated carbon adsorption tank has a plurality of advantages compared with the downward-flowing treatment mode, the upward-flowing activated carbon adsorption tank has limited removal effect on granular substances in water, and meanwhile, the risk of microorganism leakage exists. The ultrafiltration membrane treatment technology can efficiently remove granular substances in water, and has an effective removal function on microorganisms. The combination of the two has obvious technical complementarity and application prospect. Currently, there are few practical applications due to lack of suitable pool-type structures and the like.
The village and town water works are usually small in scale, the water quality and water intake conditions of the water source are often inferior to those of the urban water works, various water quality pollutes are easier to face, organic pollution is caused, ferro-manganese exceeds standard, ammonia nitrogen is high, and various bidirectional flow double-function combined filters are needed. In the prior art, the upflow filter material filtering tank is used for processing the activated carbon filter material, manganese sand, ceramsite and the like are not used as filter materials, and the prior art does not have the steps of filtering in the upflow filter material filtering tank, and then entering the ultrafiltration membrane tank from the lower part.
Disclosure of Invention
Aiming at the defects existing in the prior art, the application aims to provide a bidirectional flow dual-function filter which is a dual-function filter suitable for popularization and application in water plants and sewage treatment plants, particularly small and medium-sized village water plants, and is used for solving the problem that a proper combined filter pool type structure is lacking in China at present and cannot meet the development requirements of municipal water plants and village water plants. The bidirectional flow double-function filter tank provided by the application can be a bidirectional flow double-function filter tank formed by combining a filter material filter tank of up-flow activated carbon, manganese sand, ceramsite and the like with an upper inflow ultrafiltration membrane tank in an adhering way, wherein the filter material filter tank has different functions of removing organic matters, removing iron and manganese, removing ammonia nitrogen and the like, or the ultrafiltration membrane tank is changed into a sand filter tank.
The above object of the present application is achieved by the following technical solutions:
the bidirectional flow dual-function filter tank comprises a filter material filter tank, a filter tank and an auxiliary flushing system, wherein the filter material filter tank and the filter tank are adjacently and jointly built, water to be filtered sequentially passes through the filter material filter tank and the filter tank in a mode of ascending and descending or ascending and then flows through the filter material filter tank to produce water, and the auxiliary flushing system is used for flushing the filter material filter tank and the filter tank.
The present application may be further configured in a preferred example to: the filter material filter tank is a first upflow filter material filter tank, the filter tank is a downflow ultrafiltration membrane tank, and the bottom of the first upflow filter material filter tank is connected with a first water inlet pipe;
the first upflow filter material filter tank comprises a first tank body, a first supporting layer, a first filtering layer and a plurality of first upper water collecting tanks, wherein the first supporting layer, the first filtering layer and the plurality of first upper water collecting tanks are arranged in the first tank body from bottom to top;
the down-flow ultrafiltration membrane tank comprises a second tank body, a second upper drainage channel, a plurality of second upper drainage grooves and a plurality of ultrafiltration membrane tanks, wherein the second upper drainage channel, the second upper drainage grooves and the ultrafiltration membrane tanks are arranged in the second tank body;
one side of the second upper drainage channel is connected with a plurality of first upper water collecting grooves, the other side of the second upper drainage channel is connected with a plurality of second upper drainage grooves, and one end of the second upper drainage channel is connected with a first drainage pipe;
the water to be filtered firstly enters the second upper drainage channel of the down-flow ultrafiltration membrane tank after passing through the first supporting layer, the first filtering layer and the first upper water collecting tank from bottom to top, and then enters the ultrafiltration membrane tank in the down-flow ultrafiltration membrane tank from top to bottom through the second upper drainage channel, and water is produced after being filtered by the ultrafiltration membrane, so that a first-rising and last-falling bidirectional flow filter tank is formed.
The present application may be further configured in a preferred example to: the ultrafiltration membrane tank is provided with a plurality of first water production branch pipes, one ends of the first water production branch pipes are connected with a first water production main pipe together, and the bottom of the down-flow ultrafiltration membrane tank is provided with a plurality of first perforated mud pipes.
The present application may be further configured in a preferred example to: the first upflow filter material filter tank is internally provided with no central drainage channel, and the area of the whole first upflow filter material filter tank is the effective filtering area.
The present application may be further configured in a preferred example to: the plane position of the first upper water collecting tank of the first upflow filter material filtering tank is staggered with the second upper water discharging tank of the downflow ultrafiltration membrane tank, the first upper water collecting tank and the second upper water discharging tank are communicated with the second upper water discharging channel, the height of the first upper water collecting tank is higher than that of the second upper water discharging tank, and the bottom of the second upper water discharging channel is lower than that of the second upper water discharging tank;
one end of the second upper drainage channel is communicated with the first drainage pipe, when the first drainage pipe is opened, flushing wastewater of the first upflow filter material filter tank is discharged through the second upper drainage channel, and when the first drainage pipe is closed, filtered water of the filter material filter tank is transferred to the second upper drainage channel through the second upper drainage channel to enter the membrane tank.
The present application may be further configured in a preferred example to: the first water inlet pipe is connected with the discharge end of the second upper drainage channel of the down-flow ultrafiltration membrane pool so as to realize the function of directly entering the down-flow ultrafiltration membrane pool beyond the first up-flow filter material pool.
The present application may be further configured in a preferred example to: the filter material filter tank is a second upflow filter material filter tank, the filter tank is a sand filter tank, the bottom of the second upflow filter material filter tank is connected with a second water inlet pipe, the sand filter tank adopts a water distribution and air distribution pipe which is the same as that of the second upflow filter material filter tank, and a water distribution pipe at the bottom of the sand filter tank is used as a produced water collecting pipe and a back flushing water distribution pipe;
the second upflow filter material filter tank comprises a third tank body, a third supporting layer, a third filtering layer and a plurality of third upper water collecting tanks, wherein the third supporting layer, the third filtering layer and the plurality of third upper water collecting tanks are arranged in the third tank body from bottom to top;
the sand filter tank comprises a fourth tank body, a switching vertical pipe, a plurality of fourth upper drainage grooves, a sand filter layer and a fourth supporting layer, wherein the switching vertical pipe, the fourth upper drainage grooves, the sand filter layer and the fourth supporting layer are arranged in the fourth tank body;
one side of the switching vertical pipe is connected with a plurality of third upper water collecting grooves, the other side of the switching vertical pipe is connected with a plurality of fourth upper water draining grooves, the third upper water collecting grooves are higher than the fourth upper water draining grooves, and the positions of the third upper water collecting grooves and the fourth upper water draining grooves are in one-to-one correspondence;
a fourth upper drainage channel communicated with the fourth upper drainage groove is arranged on the outer side of the fourth tank body, and one end of the fourth upper drainage channel is connected with a fourth upper drainage pipe;
the second upflow filter material filter tank and the sand filter tank are drained through a fourth upper drainage groove, a fourth upper drainage canal and a fourth upper drainage pipe, the fourth upper drainage pipe is closed, and the fourth upper drainage groove is used for feeding water to the sand filter tank.
The present application may be further configured in a preferred example to: the second water inlet pipe is connected with the discharge end of the fourth upper drainage channel so as to realize the function of directly entering the sand filter beyond the second upflow filter.
The present application may be further configured in a preferred example to: the filter material filter tank is a down-flow filter material filter tank, the filter tank is an up-flow ultrafiltration membrane tank, the top of the down-flow filter material filter tank is connected with a first water inlet channel, the first water inlet channel is connected with a third filter tank water inlet pipe, the bottom of the first water inlet channel is connected with a sixth water drainage channel, and one end of the sixth water drainage channel is connected with a sixth water drainage pipe;
the down-flow filter material filter tank comprises a fifth tank body, a fifth supporting layer, a fifth filter material layer and a plurality of fifth drainage grooves, wherein the fifth supporting layer, the fifth filter material layer and the plurality of fifth drainage grooves are arranged in the fifth tank body from bottom to top;
the upflow ultrafiltration membrane tank comprises a sixth tank body and a plurality of sixth ultrafiltration membrane tanks arranged in the sixth tank body, and a plurality of second perforated sludge discharge pipes are arranged at the bottom of the upflow ultrafiltration membrane tank;
the third filter water inlet channel is connected to a plurality of fifth water discharge channels through a plurality of switching bent pipes, the fifth water discharge channels are connected with the sixth water discharge channels and then connected with a sixth water discharge pipe, the third filter water outlet pipe is discharged through the sixth water discharge pipe, and the water outlet pipe at the bottom of the down-flow filter material filter is connected with the third filter water inlet pipe;
the upflow ultrafiltration membrane tank is provided with a perforated water inlet pipe below the membrane tank, and the first water inlet channel is connected with the perforated water inlet pipe at the lower part of the upflow ultrafiltration membrane tank to form lower water inlet and realize the function of directly entering the upflow ultrafiltration membrane tank beyond the downflow filter material filter tank.
The present application may be further configured in a preferred example to: the top of the upflow ultrafiltration membrane tank is lower than the top of the downflow filter material tank.
The present application may be further configured in a preferred example to: the operation control mode of the bi-directional flow dual-function filter tank is that water inlet is stopped when the filter tank is washed, upper drainage is opened when the ultrafiltration membrane tank is washed independently, and the filtration filter tank is opened for drainage after washing is finished, so that a membrane washing process is carried out; and the flushing of the filter material filter tank is synchronous with the flushing of the membrane, and the flushing is performed respectively.
The present application may be further configured in a preferred example to: the bidirectional flow dual-function filter tank operation control mode stops water inflow when the filter tank is washed, and the filter tank is opened for water drainage when being washed independently for sand washing, and the filter material filter tank washing is synchronous with the filter tank washing, and is convenient to wash at the same time.
No matter the filter material filter tank is of an up-flow type or a down-flow type, more or less turbidity is intercepted in the operation process, so that the filter material filter tank adopts air flushing, water forced flushing or even air-water simultaneous flushing according to the type and particle size of the filled filter material.
In summary, the present application includes at least one of the following beneficial technical effects:
1. the bidirectional flow double-function filter tank can be a carbon film double-function filter tank, a carbon sand double-function filter tank and a manganese sand film double-function filter tank, and has the advantages of complete functions, lifting water flow, reasonable arrangement, simple structure, small occupied area, few pipelines, small water loss and low investment.
2. The filter material filter tank does not have a central canal, the Shan Gechi body is not suitable for being oversized, and the filter material filter tank is suitable for small and medium-sized water plants and occupies smaller area.
3. The two filters of the application are relatively independent and operate in series and are separately washed, and because the washing frequencies of the two filters are different, the washing with low washing frequency is actually synchronous with the washing with high washing frequency.
4. The bidirectional flow dual-function filter tank has the function of directly entering an ultrafiltration membrane tank for filtration beyond a filter material filter tank.
5. All water inlet and outlet pipes, water discharge pipes, mud discharge pipes, air pipes and the like of the bidirectional flow dual-function filter tank can be arranged on one side in a concentrated manner, so that the two groups of dual-function filter tanks can be symmetrically arranged along the wall;
6. all various pipelines of the bidirectional flow dual-function filter can be concentrated at two ends of the filter, so that multiple bidirectional flow dual-functions can be arranged in parallel in an adherence way, and the bidirectional flow dual-function filter has the potential of maximization.
Drawings
FIG. 1 is a sectional view showing an ultrafiltration assembly of a filtration tank of a first embodiment.
FIG. 2 is a plan view showing the ultrafiltration assembly of the first embodiment of the rising and falling type filter.
FIG. 3 is a sectional view showing a sand filter assembly of a first-rise and second-fall type filter according to the second embodiment.
FIG. 4 is a plan view showing a sand filter assembly of a first-rise and second-fall filter according to the second embodiment.
FIG. 5 is a sectional view showing an ultrafiltration assembly of a descending-then-ascending filter according to the third embodiment.
FIG. 6 is a plan view showing the ultrafiltration combination of the descending-then-ascending filter in the third embodiment.
Reference numerals: 1. a first upflow filter material filter; 11. a first water inlet pipe; 12. a first tank body; 13. a first support layer; 14. a first filter layer; 15. a first upper water collection sump; 16. a first filter tank water distribution header pipe; 161. a first filter water distribution branch pipe; 17. a first filter tank distribution header pipe; 171. a first filter tank gas distribution branch pipe; 2. a down-flow ultrafiltration membrane pool; 20. a first perforated sludge discharge pipe; 21. a second cell body; 211. a first air inlet pipe; 22. a second upper drainage channel; 23. a second upper drainage channel; 24. an ultrafiltration membrane box; 241. a first water producing branch pipe; 242. a first water production main; 25. a first drain pipe; 26. a first filter inlet valve; 27. a first filter inlet pipe; 28. the first filter tank is beyond the pipe; 29. the first filter tank overrun valve;
3. a second upflow filter material filter tank; 31. a second water inlet pipe; 32. a third tank body; 33. a third support layer; 34. a third filter layer; 35. a third upper water collection sump; 36. a second filter tank water distribution header pipe; 361. a second filter tank water distribution branch pipe; 37. a second filter tank distribution header pipe; 371. a second filter tank gas distribution branch pipe; 4. a sand filter; 41. a fourth tank body; 42. a switching vertical pipe; 43. a fourth upper drainage channel; 44. a sand filtering layer; 45. a fourth support layer; 46. a fourth upper drainage channel; 47. a fourth upper drain pipe; 48. a second filter inlet valve; 49. the second filter tank overrun valve;
5. a down-flow filter material filter tank; 51. a first water inlet channel; 511. a transfer elbow; 52. a third filter inlet pipe; 53. a fifth tank body; 54. a fifth supporting layer; 55. a fifth filter layer; 56. a fifth drain tank; 57. a third filter inlet valve; 58. a third filter overrun valve; 59. a third filter tank water distribution header pipe; 591. a third filter water distribution branch pipe; 6. an upflow ultrafiltration membrane pool; 61. a sixth tank body; 62. a sixth drainage channel; 64. a sixth ultrafiltration membrane tank; 641. a second water producing branch pipe; 642. a second water-producing header pipe; 65. a sixth drain pipe; 66. perforating a water inlet pipe; 67. a membrane pond water inlet main pipe; 68. a third air inlet pipe; 69. a third filter tank distribution header pipe; 691. a third filter tank gas distribution branch pipe; 7. membrane pool water inlet valve; 8. and a second perforated sludge discharge pipe.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application; it is apparent that the described embodiments are only some embodiments of the present application, not all embodiments, and that all other embodiments obtained by persons of ordinary skill in the art without making creative efforts based on the embodiments in the present application are within the protection scope of the present application.
In the description of the present application, it should be noted that the positional or positional relationship indicated by the terms such as "upper", "lower", "inner", "outer", "top/bottom", etc. are based on the positional or positional relationship shown in the drawings, are merely for convenience of describing the present application and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present application. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present application, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "configured to," "engaged with," "connected to," and the like are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present application will be understood in specific cases by those of ordinary skill in the art.
Embodiment one:
referring to fig. 1-2, the bidirectional flow dual-function filter disclosed by the application comprises a filter material filter tank, a filter tank and an auxiliary flushing system, wherein the filter material filter tank and the filter tank are adjacently and commonly built, water to be filtered sequentially passes through the filter material filter tank and the filter tank in a mode of ascending and descending or ascending and then is produced after being filtered, and the auxiliary flushing system is used for flushing the filter material filter tank and the filter tank.
In the embodiment, the filter material filter tank is a first upflow filter material filter tank 1, the filter tank is a downflow ultrafiltration membrane tank 2, and the bottom of the first upflow filter material filter tank 1 is connected with a first water inlet pipe 11;
the filter material of the first upflow filter material filter tank 1 can be activated carbon, manganese sand, ceramsite and the like which have certain functions of removing organic matters, odor substances, soluble ferromanganese, removing ammonia nitrogen and the like, and forms a bidirectional flow double-function filter tank with the downflow ultrafiltration membrane tank 2.
The first upflow filter material filter tank 1 comprises a first tank body 12, a first supporting layer 13, a first filter layer 14 and a plurality of first upper water collecting tanks 15 which are arranged in the first tank body 12 from bottom to top, wherein the bottom of the first upflow filter material filter tank 1 is connected with a first filter tank water distribution main pipe 16 and a first filter tank air distribution main pipe 17, and a first filter tank water distribution branch pipe 161 connected with the first filter tank water distribution main pipe 16 and a first filter tank air distribution branch pipe 171 connected with the first filter tank air distribution main pipe 17 are arranged in the first upflow filter material filter tank 1;
the down-flow ultrafiltration membrane tank 2 comprises a second tank body 21, a second upper drainage canal 22 arranged inside the second tank body 21, a plurality of second upper drainage grooves 23 and a plurality of ultrafiltration membrane tanks 24;
one side of the second upper drainage channel 22 is connected with the plurality of first upper water collecting grooves 15, the other side is connected with the plurality of second upper drainage grooves 23, and one end of the second upper drainage channel 22 is connected with a first drainage pipe 25; the first water inlet pipe 11 is connected with the first filter water inlet pipe 27 and the first filter water distribution main pipe 16 through a first filter water inlet valve 26, and the first water inlet pipe 11 is also connected with the first filter overrunning valve 29 and the first water outlet pipe 25 through a first filter overrunning pipe 28.
The water to be filtered firstly enters into a second upper drainage channel 22 of the down-flow ultrafiltration membrane tank 2 after passing through the first supporting layer 13, the first filtering layer 14 and the first upper water collecting tank 15 from bottom to top, and then enters into an ultrafiltration membrane tank 24 in the down-flow ultrafiltration membrane tank 2 from top to bottom through the second upper drainage channel 23, and water is produced after being filtered by the ultrafiltration membrane, so as to form a rising and falling bidirectional flow filter.
The ultrafiltration membrane tank 24 is provided with a plurality of first water producing branch pipes 241, one ends of the plurality of first water producing branch pipes 241 are connected with a first water producing main pipe 242, the bottom of the downflow ultrafiltration membrane tank 2 is provided with a plurality of first perforated mud discharging pipes 20, and the downflow ultrafiltration membrane tank 2 is provided with a first air inlet pipe 211.
The first upflow filter material filter tank 1 is not provided with a central drainage channel, and the area of the whole first upflow filter material filter tank 1 is the effective filtering area.
The plane position of the first upper water collecting tank 15 of the first upflow filter material filter tank 1 is staggered with the second upper water discharging tank 23 of the downflow ultrafiltration membrane tank 2, and the first upper water collecting tank 15 and the second upper water discharging tank are communicated with the second upper water discharging channel 22, the height of the first upper water collecting tank 15 is higher than that of the second upper water discharging tank 23, and the bottom of the second upper water discharging channel 22 is lower than that of the second upper water discharging tank 23, so that fine powder particles possibly escaping from the upflow filter tank can be well intercepted;
one end of the second upper drainage canal 22 is communicated with the first drainage canal 25, when the first drainage canal 25 is opened, flushing wastewater of the first upflow filter material filter 1 is discharged through the second upper drainage canal 22, and when the first drainage canal 25 is closed, filtered water of the filter material filter is transferred to the second upper drainage canal 23 through the second upper drainage canal 22 to enter the membrane pond.
The first water inlet pipe 11 is connected with the discharge end of the second upper drainage canal 22 of the down-flow ultrafiltration membrane pool 2 so as to realize the function of directly entering the down-flow ultrafiltration membrane pool 2 beyond the first up-flow filter material filter pool 1.
Embodiment two:
referring to fig. 3-4, the bidirectional flow dual-function filter disclosed by the application comprises a filter material filter tank, a filter tank and an auxiliary flushing system, wherein the filter material filter tank and the filter tank are adjacently and commonly built, water to be filtered sequentially passes through the filter material filter tank and the filter tank in a mode of ascending and descending or ascending and then is produced after being filtered, and the auxiliary flushing system is used for flushing the filter material filter tank and the filter tank.
The filter material filter tank is a second upflow filter material filter tank 3, the filter tank is a sand filter tank 4, and the bottom of the second upflow filter material filter tank 3 is connected with a second water inlet pipe 31;
the second upflow filter material filter tank 3 comprises a third tank body 32, a third supporting layer 33, a third filtering layer 34 and a plurality of third upper water collecting tanks 35, wherein the third supporting layer 33, the third filtering layer 34 and the plurality of third upper water collecting tanks are arranged in the third tank body 32 from bottom to top. The bottom of the second upflow filter material filter tank 3 is connected with a second filter tank water distribution manifold 36 and a second filter tank air distribution manifold 37, and a second filter tank water distribution branch 361 connected with the second filter tank water distribution manifold 36 and a second filter tank air distribution branch 371 connected with the second filter tank air distribution manifold 37 are arranged in the second upflow filter material filter tank 3. The sand filter 4 adopts the same water distribution and gas distribution pipe as the second upflow filter material filter 3, and the water distribution pipe at the bottom of the sand filter 4 is used as a produced water collecting pipe and a backwashing water distribution pipe.
The sand filter 4 comprises a fourth tank body 41, a switching vertical pipe 42, a plurality of fourth upper drainage grooves 43, a sand filter layer 44 and a fourth supporting layer 45, wherein the switching vertical pipe 42, the fourth upper drainage grooves 43, the sand filter layer 44 and the fourth supporting layer 45 are arranged in the fourth tank body 41;
one side of the switching standpipe 42 is connected with a plurality of third upper water collecting grooves 35, the other side is connected with a plurality of fourth upper water draining grooves 43, the third upper water collecting grooves 35 are higher than the fourth upper water draining grooves 43, and the positions of the third upper water collecting grooves 35 and the fourth upper water draining grooves 43 are in one-to-one correspondence;
a fourth upper drain 46 communicated with the fourth upper drain groove 43 is arranged on the outer side of the fourth tank body 41, and one end of the fourth upper drain 46 is connected with a fourth upper drain pipe 47; the second inlet pipe 31 is connected to the second filter water distribution manifold 36 via a second filter inlet valve 48, and the second inlet pipe 31 is also connected to a fourth upper drain pipe 47 via a second filter override valve 49.
The second upflow filter material filter tank 3 and the sand filter tank 4 are both drained through a fourth upper drain groove 43, a fourth upper drain channel 46 and a fourth upper drain pipe 47, the fourth upper drain pipe 47 is closed, and the fourth upper drain groove 43 is used for feeding water to the sand filter tank 4. The second water inlet pipe 31 is connected with the discharge end of the fourth upper drainage channel 46 to realize the function of directly entering the sand filter 4 beyond the second upflow filter 3.
Embodiment III:
referring to fig. 5-6, the bidirectional flow dual-function filter disclosed by the application comprises a filter material filter tank, a filter tank and an auxiliary flushing system, wherein the filter material filter tank and the filter tank are adjacently and commonly built, water to be filtered sequentially passes through the filter material filter tank and the filter tank in a mode of ascending and descending or ascending and then is produced after being filtered, and the auxiliary flushing system is used for flushing the filter material filter tank and the filter tank.
In the embodiment, the filter material filter tank is a down-flow filter material filter tank 5, the filter tank is an up-flow ultrafiltration membrane tank 6, the top of the down-flow filter material filter tank 5 is connected with a first water inlet channel 51, the first water inlet channel 51 is connected with a third filter tank water inlet pipe 52, the bottom of the first water inlet channel 51 is connected with a sixth water outlet channel 62, and one end of the sixth water outlet channel 62 is connected with a sixth water outlet pipe 65;
the down-flow filter material filter tank 5 comprises a fifth tank body 53, a fifth supporting layer 54, a fifth filter material layer 55 and a plurality of fifth drainage grooves 56, wherein the fifth supporting layer 54, the fifth filter material layer 55 and the plurality of fifth drainage grooves 56 are arranged in the fifth tank body 53 from bottom to top;
the upflow ultrafiltration membrane tank 6 comprises a sixth tank body 61 and a plurality of sixth ultrafiltration membrane tanks 64 arranged in the sixth tank body 61, and a plurality of second perforated sludge discharge pipes 8 are arranged at the bottom of the upflow ultrafiltration membrane tank 6;
the third filter water inlet channel 51 is connected to a plurality of fifth water discharge channels 56 through a plurality of transfer bent pipes 511, the fifth water discharge channels 56 are connected with a sixth water discharge channel 62 and then connected with a sixth water discharge pipe 65, the third filter water is discharged through the sixth water discharge pipe 65, and a water outlet pipe at the bottom of the down-flow filter material filter 5 is connected with a third filter water inlet pipe 52;
the upflow ultrafiltration membrane tank 6 is provided with a perforated water inlet pipe 66 below the membrane tank, the first water inlet channel 51 is connected with the perforated water inlet pipe 66 at the lower part of the upflow ultrafiltration membrane tank 6 to form lower water inlet, and the function of directly entering the upflow ultrafiltration membrane tank 6 beyond the downflow filter material filter tank 5 is realized.
The third filter water inlet pipe 52 is connected with a membrane pond water inlet main pipe 67 through a third filter water inlet valve 57 and a third filter overrun valve 58, the bottom of the down-flow filter material filter 5 is connected with a third filter water distribution main pipe 59 and a third filter air distribution main pipe 69, and a third filter water distribution branch pipe 591 connected with the third filter water distribution main pipe 59 and a third filter air distribution branch pipe 691 connected with the third filter air distribution main pipe 69 are arranged in the down-flow filter material filter 5.
The third filter water distribution header 59 is connected with a pipeline between the third filter overrun valve 58 and the membrane tank water inlet header 67 through the membrane tank water inlet valve 7. The sixth ultrafiltration membrane tank 64 is provided with a plurality of second water producing branch pipes 641, one ends of the second water producing branch pipes 641 are commonly connected with a second water producing main 642, and the bottom of the upflow ultrafiltration membrane tank 6 is provided with a plurality of second perforated mud discharging pipes 8.
The top of the upflow ultrafiltration membrane tank 6 is lower than the top of the downflow filter material tank 5. The operation control mode of the bidirectional flow dual-function filter tank is that water inlet is stopped when the filter tank is washed, the filter tank is opened for draining water when the filter tank is washed independently, the membrane washing process is carried out, and the filter material is washed synchronously with the membrane washing and is washed respectively.
The bidirectional flow dual-function filter tank operation control mode stops water inflow when the filter tank is washed, and the filter tank is opened for water drainage when being washed independently for sand washing, and the filter material filter tank washing is synchronous with the filter tank washing, and is convenient to wash at the same time.
The implementation principle of the application is as follows: the application discloses a bidirectional flow dual-function filter tank suitable for popularization and application of water plants and sewage treatment plants, in particular to a medium-small village and town water plant, which is used for solving the problem that a proper combined filter tank structure is lacking in China at present and cannot meet the development requirements of municipal water plants and village and town water plants. The bidirectional flow double-function filter tank provided by the application can be a bidirectional flow double-function filter tank formed by combining a filter material filter tank of up-flow activated carbon, manganese sand, ceramsite and the like with an upper inflow ultrafiltration membrane tank, wherein the filter material filter tank has different functions of removing organic matters, removing iron and manganese, removing ammonia nitrogen and the like, or the ultrafiltration membrane tank is changed into a bidirectional flow double-function filter tank of a sand filter tank 4.
The application has another form that the filter material filter tank which descends and ascends firstly is combined with the ultrafiltration membrane tank to form a bi-directional flow dual-function filter tank, and the water inlet at the lower part of the ultrafiltration membrane tank can continuously enter water and drain water upwards when the ultrafiltration membrane is backwashed, thereby strengthening the upward removal of dirty substances, cleaning the water quality in the tank and reducing the lower drainage quantity. The filter material filter tank of the application does not have a central canal, and the Shan Gechi body is not suitable for being excessively large, thus being applicable to small and medium-sized water plants.
The embodiments of the present application are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in this way, therefore: all equivalent changes in structure, shape and principle of the application should be covered in the scope of protection of the application.
Claims (12)
1. The bidirectional flow dual-function filter tank is characterized by comprising a filter material filter tank, a filter tank and an auxiliary flushing system, wherein the filter material filter tank is adjacent to the filter tank or is co-built with the filter tank, water to be filtered sequentially passes through the filter material filter tank and the filter tank in a mode of ascending and descending or ascending before descending to produce water, and the auxiliary flushing system is used for flushing the filter material filter tank and the filter tank.
2. The bidirectional flow double-function filter tank according to claim 1, wherein the filter material filter tank is a first upflow filter material filter tank (1), the filter tank is a downflow ultrafiltration membrane tank (2), and a first water inlet pipe (11) is connected to the bottom of the first upflow filter material filter tank (1);
the first upflow filter material filter tank (1) comprises a first tank body (12), a first supporting layer (13), a first filtering layer (14) and a plurality of first upper water collecting tanks (15), wherein the first supporting layer (13), the first filtering layer (14) and the plurality of first upper water collecting tanks (15) are arranged in the first tank body (12) from bottom to top;
the down-flow ultrafiltration membrane tank (2) comprises a second tank body (21), a second upper drainage channel (22), a plurality of second upper drainage grooves (23) and a plurality of ultrafiltration membrane boxes (24), wherein the second upper drainage channel (22), the second upper drainage grooves (23) and the ultrafiltration membrane boxes are arranged in the second tank body (21);
one side of the second upper drainage channel (22) is connected with a plurality of first upper water collecting tanks (15), the other side of the second upper drainage channel is connected with a plurality of second upper drainage tanks (23), and one end of the second upper drainage channel (22) is connected with a first drainage pipe (25);
the water to be filtered firstly enters the second upper drainage channel (22) of the down-flow ultrafiltration membrane tank (2) from bottom to top through the first supporting layer (13), the first filtering layer (14) and the first upper water collecting tank (15), then enters the ultrafiltration membrane tank (2) from top to bottom through the second upper drainage channel (23), and finally is produced after being filtered by an ultrafiltration membrane to form a forward-backward bidirectional flow filter tank.
3. The bidirectional flow dual function filter according to claim 2, wherein a plurality of first water producing branch pipes (241) are installed on the ultrafiltration membrane tank (24), one ends of the plurality of first water producing branch pipes (241) are commonly connected with a first water producing main pipe (242), and a plurality of first perforated mud discharging pipes (20) are installed at the bottom of the down-flow ultrafiltration membrane tank (2).
4. The bidirectional flow dual function filter according to claim 2, wherein the first upflow filter (1) is not provided with a central drainage channel, and the area of the whole first upflow filter (1) is the effective filtering area.
5. The bidirectional flow dual function filter according to claim 2, wherein the first upper water collection tank (15) of the first upflow filter media filter (1) is arranged in a staggered manner with the second upper water drainage tank (23) of the downflow ultrafiltration membrane tank (2), both of which are communicated with the second upper water drainage channel (22), the first upper water collection tank (15) is higher than the second upper water drainage tank (23), and the channel bottom of the second upper water drainage channel (22) is lower than the bottom of the second upper water drainage channel (23);
one end of the second upper drainage channel (22) is communicated with the first drainage channel (25), when the first drainage channel (25) is opened, flushing wastewater of the first upflow filter material filter tank (1) is discharged through the second upper drainage channel (22), when the first drainage channel (25) is closed, filtered water of the filter material filter tank is transferred to the second upper drainage channel (22) through the second upper drainage channel (23) to enter a membrane tank.
6. The bi-functional filter according to claim 1, wherein the first water inlet pipe (11) is connected to the discharge end of the second upper drainage channel (22) of the down-flow ultrafiltration membrane tank (2) to achieve a function of directly entering the down-flow ultrafiltration membrane tank (2) beyond the first up-flow filter media filter (1).
7. The bidirectional flow double-function filter tank according to claim 1, wherein the filter material filter tank is a second upflow filter material filter tank (3), the filter tank is a sand filter tank (4), the bottom of the second upflow filter material filter tank (3) is connected with a second water inlet pipe (31), the sand filter tank (4) adopts a water distribution pipe which is the same as the second upflow filter material filter tank (3), and a water distribution pipe at the bottom of the sand filter tank (4) is used as a produced water collecting pipe and a back flushing water distribution pipe;
the second upflow filter material filter tank (3) comprises a third tank body (32), a third supporting layer (33), a third filtering layer (34) and a plurality of third upper water collecting tanks (35), wherein the third supporting layer (33), the third filtering layer (34) and the plurality of third upper water collecting tanks are arranged in the third tank body (32) from bottom to top;
the sand filter (4) comprises a fourth tank body (41), a switching vertical pipe (42), a plurality of fourth upper drainage grooves (43), a sand filtering layer (44) and a fourth supporting layer (45), wherein the switching vertical pipe (42) is arranged in the fourth tank body (41);
one side of the switching vertical pipe (42) is connected with a plurality of third upper water collecting grooves (35), the other side of the switching vertical pipe is connected with a plurality of fourth upper water draining grooves (43), the third upper water collecting grooves (35) are higher than the fourth upper water draining grooves (43), and the positions of the third upper water collecting grooves (35) and the fourth upper water draining grooves (43) are in one-to-one correspondence;
a fourth upper drainage channel (46) communicated with the fourth upper drainage channel (43) is arranged on the outer side of the fourth tank body (41), and one end of the fourth upper drainage channel (46) is connected with a fourth upper drainage pipe (47);
the second upflow filter material filter tank (3) and the sand filter tank (4) are both drained through a fourth upper drainage groove (43), a fourth upper drainage channel (46) and a fourth upper drainage pipe (47), the fourth upper drainage pipe (47) is closed, and the fourth upper drainage groove (43) is used for feeding water to the sand filter tank (4).
8. A bi-functional filter according to claim 7, wherein the second inlet pipe (31) is connected to the discharge end of the fourth upper drainage channel (46) to perform the function of directly entering the sand filter (4) beyond the second upflow filter (3).
9. The bidirectional flow double-function filter tank according to claim 1, wherein the filter material filter tank is a down-flow filter material filter tank (5), the filter tank is an up-flow ultrafiltration membrane tank (6), a first water inlet channel (51) is connected to the top of the down-flow filter material filter tank (5), a third filter tank water inlet pipe (52) is connected to the first water inlet channel (51), a sixth water outlet channel (62) is connected to the bottom of the first water inlet channel (51), and a sixth water outlet pipe (65) is connected to one end of the sixth water outlet channel (62);
the down-flow filter material filter tank (5) comprises a fifth tank body (53), a fifth supporting layer (54), a fifth filter material layer (55) and a plurality of fifth drainage grooves (56), wherein the fifth supporting layer (54), the fifth filter material layer (55) and the plurality of fifth drainage grooves are arranged in the fifth tank body (53) from bottom to top;
the upflow ultrafiltration membrane tank (6) comprises a sixth tank body (61) and a plurality of sixth ultrafiltration membrane boxes (64) arranged in the sixth tank body (61), and a plurality of second perforated mud pipes (8) are arranged at the bottom of the upflow ultrafiltration membrane tank (6);
the third filter water inlet channel (51) is connected to a plurality of fifth water discharge grooves (56) through a plurality of switching bent pipes (511), the fifth water discharge grooves (56) are connected with the sixth water discharge channels (62) and then are connected with a sixth water discharge pipe (65), the third filter water is discharged through the sixth water discharge pipe (65), and a water outlet pipe at the bottom of the down-flow filter material filter (5) is connected with the third filter water inlet pipe (52);
the upflow ultrafiltration membrane tank (6) is provided with a perforated water inlet pipe (66) below the membrane tank, the first water inlet channel (51) is connected with the perforated water inlet pipe (66) at the lower part of the upflow ultrafiltration membrane tank (6) to form lower water inlet, and the function that the upflow ultrafiltration membrane tank (6) directly enters beyond the downflow filtration material filter tank (5) is realized.
10. A bi-functional filter according to claim 9, characterized in that the top of the upflow ultrafiltration membrane tank (6) is lower than the top of the downflow filter material tank (5).
11. The bi-directional flow dual function filter according to any one of claims 1, 2 and 9, wherein the operation control mode of the bi-directional flow dual function filter is that the water inlet is stopped when the filter material filter and the filter tank are washed, the ultrafiltration membrane tank is washed separately, the upper drainage is opened when the ultrafiltration membrane tank is washed separately, the lower drainage is opened when the upper drainage is opened after the washing is finished, and the membrane washing process is performed; and the washing of the filter material filter tank is synchronous with the membrane washing, and the washing is performed respectively.
12. A bi-directional flow dual function filter as set forth in any one of claims 1 and 7 wherein the bi-directional flow dual function filter is controlled by stopping water inflow during flushing of the filter, opening the upper drain for sand flushing when the filter is flushed separately, and wherein the filter is flushed simultaneously with the filter flushing while facilitating flushing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311104978.8A CN117088432A (en) | 2023-08-30 | 2023-08-30 | Bidirectional flow double-function filter tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311104978.8A CN117088432A (en) | 2023-08-30 | 2023-08-30 | Bidirectional flow double-function filter tank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117088432A true CN117088432A (en) | 2023-11-21 |
Family
ID=88777096
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311104978.8A Pending CN117088432A (en) | 2023-08-30 | 2023-08-30 | Bidirectional flow double-function filter tank |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117088432A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117361811A (en) * | 2023-12-04 | 2024-01-09 | 北京仁创科技集团有限公司 | High-efficiency filtering system |
-
2023
- 2023-08-30 CN CN202311104978.8A patent/CN117088432A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117361811A (en) * | 2023-12-04 | 2024-01-09 | 北京仁创科技集团有限公司 | High-efficiency filtering system |
| CN117361811B (en) * | 2023-12-04 | 2024-03-19 | 北京仁创科技集团有限公司 | Filtering system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205294949U (en) | High -efficient bological aerated filter | |
| CN117088432A (en) | Bidirectional flow double-function filter tank | |
| CN101723560A (en) | Integrated A/O bacteria filter device for treating dispersed wastewater | |
| CN206872639U (en) | A kind of integrated sewage treating apparatus | |
| CN105110507B (en) | Drainage processing equipment is floated in a kind of self-cleaning | |
| CN214528570U (en) | Combined filter of carbon filter and sand filter | |
| CN202924819U (en) | Aeration biological filter tank | |
| CN201890787U (en) | Double-layered pressure type integrated deoiler | |
| CN202449889U (en) | Distributed water treatment device based on dynamic membrane | |
| CN205367870U (en) | Dark bed bioreactor of denitrification | |
| CN206232523U (en) | Integrated sewage treating apparatus | |
| CN112657241B (en) | Upward flow filter pool with heterogeneous filter material | |
| CN214528348U (en) | Take charcoal sand double pin filtering pond of central canal | |
| CN2937108Y (en) | Electric-control spiral-flow high turbidity integral water purifier | |
| CN209010334U (en) | A kind of multidirectional stream biofiltration device | |
| CN202924854U (en) | Flocculation rotary table filter tank of sewage treatment | |
| CN219502048U (en) | Filter of sewage treatment equipment | |
| CN217947890U (en) | Full-automatic improvement bypass type AO-sand filtration integration equipment | |
| CN205222858U (en) | Integration self -cleaning is floated and is strained water treatment facilities | |
| CN2592634Y (en) | Efficient integrated water purifying apparatus | |
| CN213834951U (en) | Waste water treatment device | |
| CN214528294U (en) | Upward flow active carbon filter with central channel | |
| CN220413032U (en) | Ozone catalytic oxidation sewage treatment plant | |
| CN216837337U (en) | Integrated biological filter | |
| CN114890571B (en) | Reverse series connection carbon sand filter tank and water filtering method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |