CN210613021U - Metal film filter core, metal film filter and sewage treatment depth filtration system - Google Patents
Metal film filter core, metal film filter and sewage treatment depth filtration system Download PDFInfo
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- CN210613021U CN210613021U CN201921411495.1U CN201921411495U CN210613021U CN 210613021 U CN210613021 U CN 210613021U CN 201921411495 U CN201921411495 U CN 201921411495U CN 210613021 U CN210613021 U CN 210613021U
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Abstract
The utility model discloses a metal film filter element, a metal film filter and a sewage treatment depth filtering system, wherein the metal film filter element is a metal film with a tubular structure, a perforated pipe vertically arranged in the metal film filter element, and a top connecting plate and a bottom connecting plate which are arranged at both ends of the metal film filter element, both ends of the perforated pipe respectively support the top connecting plate and the bottom connecting plate and are communicated with a first through hole arranged on the top connecting plate and a second through hole arranged on the bottom connecting plate; the metal membrane comprises a metal membrane filter screen layer and a porous support layer positioned on two sides of the metal membrane filter screen layer. The utility model provides a filter core has advantages such as mechanical properties is good, high temperature resistant and easy sealed, the integrated processing of being convenient for to it is corrosion-resistant, difficult jam is out of shape, has fine filtering capability to the solid matter that suspends, and the perforated pipe can all play the water conservancy diversion effect filtering and backwash in-process, suitably reduces the impact of operation in-process to the metallic membrane.
Description
Technical Field
The utility model relates to a sewage treatment field, concretely relates to metal film filter core, metal film filter and sewage treatment degree of depth filtration system.
Background
In the traditional water treatment process of A/O, A2/O and SBR, effluent is precipitated in a secondary sedimentation tank or a mud-water mixture is stood and then clear water is discharged, partial sludge, floccules, colloids and the like are mixed in the effluent, and Suspended Substances (SS) of the effluent are overhigh. The primary standard B of SS in the discharge Standard of pollutants for municipal wastewater treatment plants (GB18918-2002) is less than or equal to 20mg/L, and the primary standard A is less than or equal to 10 mg/L. At present, sewage discharge standards are becoming strict day by day, enterprises and sewage treatment plants face huge environmental protection pressure, and a plurality of old plants and old plants require upgrading and modification, wherein SS is a difficult processing index, and more membrane reactors and membrane filtration equipment are applied at present, so that upgrading and modification cost is too high, and the method is not economical for small and medium-sized enterprises or enterprises with small sewage discharge capacity. Sewage treatment plant uses more degree of depth filtration equipment and is mostly the filter cloth filtration, and the filter cloth is because mechanical strength is lower, and does not just be corrosion-resistant and blocks up the deformation easily, can influence normal play water.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model aims at providing a metal film filter core, the metal film filter who founds by the metal film filter core and the sewage treatment depth filtration system who founds by the metal film filter, adopt the metal film filter screen layer among the metal film filter core, compared with filter cloth, organic membrane have mechanical properties good, high temperature resistant and easy sealed, be convenient for integrated processing etc. advantage, and corrosion-resistant, difficult jam is out of shape, have fine filtering capability to suspended solid matter, the particulate matter is held back on the metal film surface, form surface filtration; the porous supporting layers are arranged on two sides of the metal film filter screen layer and are used for supporting the metal film filter screen layer to isolate the metal film filter screen layer from the inside and the outside, a sealed space is formed inside the metal film filter screen layer to prevent the metal film filter screen layer from deforming, shifting and the like, and a certain vacuum degree can be formed in the filter membrane, so that the pressure difference between the inside and the outside of the filter membrane is increased, and the filtering efficiency is increased; the filter core is internally provided with the perforated pipe, the effluent flows out of the perforated pipe, the perforated pipe can play a role in diversion in the filtering and backwashing processes, the impact on the metal film in the operation process is properly reduced, and the filter core, the filter and the filtering system can realize good filtering and backwashing effects.
The utility model discloses a following technical scheme solves above-mentioned technical problem.
In a first aspect, the utility model provides a metal film filter, which comprises a metal film in a tubular structure, a perforated pipe longitudinally arranged in the metal film, and a top connecting plate and a bottom connecting plate which are arranged at two ends of the perforated pipe, wherein two ends of the perforated pipe respectively support against the top connecting plate and the bottom connecting plate and are communicated with a first through hole arranged on the top connecting plate and a second through hole arranged on the bottom connecting plate; the metal membrane comprises a metal membrane filter screen layer and a porous support layer positioned on two sides of the metal membrane filter screen layer.
On the basis of the technical scheme, the metal membrane filter screen layer is made of stainless steel, preferably 316L stainless steel, the mesh number of the metal membrane filter screen layer is 3000 meshes, and the pore diameter is 5 mu m; the 316L stainless steel has outstanding corrosion resistance, is insensitive to temperature and high in water stability, and can be used for treating various effluent qualities; when the mesh number of the metal film reaches 3000 meshes and the pore diameter is 5 mu m, almost all suspended solid particles can be intercepted.
On the basis of any one of the above technical schemes, further, the porous support layer is a stainless steel circular hole punching net.
On the basis of any one of the above technical schemes, further, the metal film filter screen layers in the metal film are at least two layers which are stacked, so that the filtering efficiency is effectively improved.
On the basis of any one of the above technical solutions, further, the metal film is of a cylindrical structure, the top connecting plate includes a first circular cover plate, a port located on the outer side of the first circular cover plate, and a first annular boss located on the inner side edge of the first circular cover plate, the outer diameter of the first annular boss matches with the inner diameter of the cylindrical metal film, and a first through hole is longitudinally formed in the center of the port;
the bottom connecting plate includes the circular apron of second, is located the second annular boss of the inboard edge of first circular apron, and the circular apron of second is the arch, and the arch top is the platform form, and the second through-hole is seted up at the platform center, and second annular boss external diameter matches with cylindric metal film internal diameter, and first annular boss, the equal cartridge of second annular boss are inside the metal film. This configuration of the top and bottom connector plates facilitates ease of removal and installation.
In a second aspect, the utility model also provides a metal membrane filter constructed by using any one of the metal membrane filter elements of the first aspect, which comprises a shell and a metal membrane filter element fixed in the shell, wherein a first through hole on the metal membrane filter element is communicated with a backwashing water inlet arranged at the top of the shell, and a second through hole on the metal membrane filter element is communicated with a filtering water outlet at the bottom of the shell; the upper part and the lower part of the side wall of the shell are respectively provided with a water inlet and a backwashing concentrated water outlet.
On the basis of the technical scheme, further, the shell is formed by buckling two semi-cylindrical barrels and is fixedly connected through a locking piece; when the filter element needs to be replaced, the shell is only required to be opened, and the filter element can be conveniently replaced.
In a third aspect, the utility model also provides a sewage treatment depth filtration system constructed by any one of the metal membrane filters in the second aspect, which comprises a water inlet module, a metal membrane filter, a water outlet module, a filter backwashing module and an automatic control module for controlling the operation of the four modules, which are connected in sequence; the water inlet module comprises a water supply tank and a water inlet pipeline connected with the water supply tank and the water inlet of the metal film filter; the water outlet module comprises a water outlet pipeline connected with a filtering water outlet of the metal film filter and a pipeline diversion control valve arranged on the water outlet pipeline, one end of the outlet of the water outlet pipeline is connected with the backwashing tank, and the other end of the outlet of the water outlet pipeline is connected with the sewage treatment system or the treated water storage tank; the filter backwashing module comprises a backwashing water inlet pipeline and a backwashing water outlet pipeline, the two ends of the backwashing water inlet pipeline are respectively connected with a backwashing water inlet of the backwashing tank and the backwashing water inlet of the metal membrane filter, one end of the backwashing water outlet pipeline is connected with a backwashing concentrated water outlet, and the other end of the backwashing water outlet pipeline is connected with a sewage treatment system at the front end or is connected with a concentrated water tank.
On the basis of any technical scheme, further, a booster pump is installed in a water supply pool of the water inlet module or on the water inlet pipeline, a flow regulating valve and a flow meter are installed on the water inlet pipeline, a pressure gauge and a water inlet valve are also installed on the water inlet pipeline close to the water inlet of the metal membrane filter, and the booster pump, the flow regulating valve, the flow meter, the pressure gauge and the water inlet valve are all connected with the automatic control module.
On the basis of any technical scheme, a pressure gauge and a flowmeter are further arranged on the water outlet pipeline; a backwashing pump, a flowmeter and a backwashing water inlet valve are arranged on the backwashing water inlet pipeline, and a backwashing water outlet valve is arranged on the backwashing water outlet pipeline.
On the basis of any one of the above technical schemes, further, a liquid level ball float valve is arranged in the backwashing tank and connected with the automatic control module.
Drawings
FIG. 1 is a schematic diagram of a metal membrane cartridge;
FIG. 2 is a schematic structural diagram of a metal film;
FIG. 3 is a schematic structural view of a metal membrane filter;
FIG. 4 is a block diagram of a sewage treatment depth filtration system;
FIG. 5 is a schematic view of the structure of a sewage treatment depth filtration system;
in the figure, 1, a water inlet module; 11. a water supply tank; 12. a water inlet pipe; 13. a booster pump; 14. a flow regulating valve; 15. a flow meter; 16. a pressure gauge; 17. a water inlet valve; 2. a metal membrane filter; 21. a housing; 211. a water inlet; 212. filtering the water outlet; 213. backwashing the water inlet; 214. backwashing a concentrated water outlet; 22. a metal membrane filter element; 23. a metal film; 231. a metal film filter screen layer; 232. a porous support layer; 24. a perforated pipe; 25. a top connection plate; 251. a first circular cover plate; 252. an interface; 253. a first annular boss; 26. a bottom connecting plate; 261. a second circular cover plate; 262. a second annular boss; 27. a first through hole; 28. a second through hole; 3. a water outlet module; 31. a water outlet pipeline; 32. a pipeline diversion control valve; 33. a backwash tank; 34. a water outlet valve; 4. a filter backwashing module; 41. backwashing the water inlet pipeline; 42. backwashing the water outlet pipeline; 43. a backwash pump; 44. backwashing the water inlet valve; 45. backwashing a water outlet valve; 5. and an automatic control module.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings.
Example 1
The utility model provides a metal film filter element 22, which comprises a metal film 23 in a tubular structure, a perforated pipe 24 longitudinally arranged in the metal film filter element, and a top connecting plate 25 and a bottom connecting plate 26 arranged at two ends of the perforated pipe 24, wherein two ends of the perforated pipe 24 respectively support against the top connecting plate 25 and the bottom connecting plate 26 and are communicated with a first through hole 27 arranged on the top connecting plate and a second through hole 28 arranged on the bottom connecting plate; the metal film 23 comprises a metal film filter screen layer 231 and porous support layers 232 positioned on two sides of the metal film filter screen layer, the metal film filter screen layer has the advantages of good mechanical property, high temperature resistance, easy sealing, convenient integrated processing and the like compared with a filter cloth and an organic film, and is corrosion-resistant and not easy to block and deform, the porous support layers are used for supporting the metal film filter screen layer, so that the metal film filter screen layer is isolated from the inside and the outside, a sealing space is formed inside, the metal film filter screen layer is prevented from deforming, displacing and the like, and meanwhile, a certain vacuum degree can be formed in the filter film, so that the internal and external pressure; the setting of perforation pipe can all play the water conservancy diversion effect at filtration and backwash in-process, suitably reduces the impact to the metallic membrane in the operation process, guarantees the filtration efficiency of metallic membrane, the utility model provides a dual efficiency of filtration and backwash can be realized simultaneously to the filter core.
On the basis of the technical scheme, preferably, the metal membrane filter screen layer is made of stainless steel, preferably 316L stainless steel, the 316L stainless steel belongs to a cold-rolled product, the appearance is smooth and fine, due to the fact that molybdenum is added in the manufacturing process, the stainless steel has outstanding corrosion resistance, is insensitive to temperature and high in water stability, the fluctuation of outlet water of an actual sewage treatment system is large, the requirement on the property of a filter membrane is high, the outstanding property characteristic of the 316L stainless steel can meet the requirements of various outlet water qualities, meanwhile, the 316L stainless steel has excellent processing hardening property and lighter quality, the high-precision stainless steel metal membrane has good filtering capacity on suspended solid substances, and particles are intercepted on the surface of the metal membrane to form surface filtering; the metal film filter screen preferably has a mesh number of 3000 meshes and a pore diameter of 5 μm, and when the mesh number of the metal film filter screen reaches 3000 meshes and the pore diameter is 5 μm, almost all suspended solid particles can be intercepted.
On the basis of any one of the above technical schemes, preferably, the porous supporting layer is a stainless steel circular hole punching net, so that the support and the filtration are ensured, and meanwhile, the porous supporting layer has the advantages of good mechanical property, high temperature resistance, corrosion resistance, easiness in sealing, convenience in integrated processing and the like, is not easy to block and deform, and prolongs the service life of the metal film.
In order to improve the transformation conveniently, promote filtration efficiency, can increase the number of piles with the metal film filter screen layer, the metal film filter screen layer that also is in the metal film is two-layer, three-layer, four layers or more of range upon range of at least.
In one embodiment, the metal film 23 is a cylindrical structure, the top connecting plate 25 and the bottom connecting plate 26 are both in the shape of a dome, and the top connecting plate 25 includes a first circular cover plate 251, a port 252 located on the outer side of the first circular cover plate, and a first annular boss 253 located on the inner edge of the first circular cover plate; a first through hole 27 is longitudinally formed in the center of the interface 252, and a first annular boss 253 is matched with the inner diameter of a cylindrical metal film; the bottom connecting plate 26 comprises a second circular cover plate 261 and a second annular boss 262 positioned at the inner side edge of the first circular cover plate, the second circular cover plate 261 is arched, the top of the arch is in a platform shape, and the second annular boss 262 is matched with the inner diameter of the cylindrical metal film; the first annular boss 253 and the second annular boss 262 are inserted into the metal film, so that the filter element is convenient to disassemble and assemble integrally.
On the basis of the above technical solution, preferably, the outer diameter of the perforated pipe 24 is larger than the inner diameters of the first through hole 27 and the second through hole 28, so as to ensure that the backwash water entering from the first through hole 27 completely enters the perforated pipe, then permeates into the cavity of the filter element from the holes on the perforated pipe, and then flows through the metal film to flush the retentate accumulated on the surface of the metal film, thereby achieving the backwashing effect.
Example 2
The utility model provides a metal membrane filter 2 utilizes any kind of metal membrane filter core in embodiment 1 to construct and forms, including shell 21 and the metal membrane filter core 22 of fixing in the shell, metal membrane filter core 22 agrees with the top and the bottom of shell, can bear certain water conservancy and strike, and first through-hole 27 on the metal membrane filter core 22 communicates with the backwash water inlet 213 that the top of shell 21 set up, and second through-hole 28 on the metal membrane filter core 22 communicates with the filtration mouth of a river 212 of crossing at the shell bottom; the upper part and the lower part of the side wall of the shell are respectively provided with a water inlet 211 and a backwashing concentrated water outlet 214.
On the basis of the above scheme, preferably, the shell is formed by buckling two semi-cylindrical barrels which are distributed left and right and is fixedly connected in a sealing manner through a locking piece, or the shell is formed by buckling two barrels which are distributed up and down and is fixedly connected in a sealing manner through a locking piece.
Example 3
The utility model provides a sewage treatment depth filtration system is constructed by the metal membrane filter that embodiment 2 provided, including the water inlet module 1, the metal membrane filter 2, the water outlet module 3, the filter backwashing module 4 and the automatic control module 5 that controls the operation of the four that connect gradually, the automatic control module 5 carries out real-time monitoring and control to the whole system; the water inlet module 1 comprises a water supply tank 11 and a water inlet pipeline 12 connected with the water supply tank 11 and the water inlet 211 of the metal membrane filter, wherein the water supply tank is a secondary sedimentation tank of the sewage treatment system; the water outlet module 3 comprises a water outlet pipeline 31 connected with a filtering water outlet 212 of the metal membrane filter 2 and a pipeline diversion control valve 32 arranged on the water outlet pipeline 31, one end of the outlet of the water outlet pipeline 31 is connected with a backwashing tank 33, and the other end of the outlet of the water outlet pipeline 31 is connected with a front-end sewage treatment system or a treated water storage tank; the filter backwashing module 4 comprises a backwashing water inlet pipe 41 and a backwashing water outlet pipe 42, two ends of the backwashing water inlet pipe 41 are respectively connected with the backwashing tank 33 and the backwashing water inlet 213 of the metal membrane filter, one end of the backwashing water outlet pipe 42 is connected with a backwashing concentrated water outlet 214, the other end of the backwashing water outlet pipe is connected with a sewage treatment system at the front end or is connected with a concentrated water tank, a backwashing pump 43 and a flowmeter are installed on the backwashing water inlet pipe 41, a backwashing water inlet valve 44 is installed at a position close to the backwashing concentrated water inlet 213, and a backwashing water outlet valve 45 is installed at a position close to the backwashing concentrated water outlet 214 on the backwashing water outlet pipe 42.
On the basis of the above scheme, preferably, a booster pump 13 is installed in the water supply tank 11 of the water inlet module 1 or on the water inlet pipe 12, a flow regulating valve 14 and a flow meter 15 are installed on the water inlet pipe 12, a pressure gauge 16 and a water inlet valve 17 are also installed on the water inlet pipe 12 near the water inlet 211 of the metal membrane filter, and the booster pump, the flow regulating valve, the flow meter, the pressure gauge and the water inlet valve are all connected with the automatic control module.
On the basis of the above scheme, preferably, the water outlet pipe 31 is further provided with a pressure gauge and a flow meter connected with the automatic control module to monitor and control the outlet water, and the water outlet pipe 31 near the filtering water outlet 212 of the metal film filter is further provided with a water outlet valve 34. On the basis of any one of the above schemes, preferably, a liquid level ball valve is arranged in the backwashing tank 33, and the liquid level ball valve is connected with the automatic control module.
When the sewage treatment depth filtering system is used, firstly filtering and then backwashing are carried out, in the filtering process, a backwashing water inlet valve 44 and a backwashing water outlet valve 45 are closed, a water inlet valve 17 and a water outlet valve 34 are opened, water in a water supply tank 11 is conveyed into a metal membrane filter 2 through a booster pump 13, an automatic control module 5 can control the water inlet flow through a flow regulating valve 14, after the inlet water enters the filter from a water inlet 211 of the metal membrane filter 2, SS (suspended solid) particles in the inlet water are effectively intercepted on the outer surface of the metal membrane, and the filtered water is discharged from a second through hole 28 at the lower end of a filter element and a filtered water outlet 212 (shown by solid arrows in figure 3) and enters a backwashing tank 33 or a front-end sewage treatment system or a treated water storage tank; the filtered water enters the backwashing tank 33 preferentially, when the backwashing tank 33 is full of water, the water is stopped to be discharged into the backwashing tank 33, a water outlet pipeline is switched, and the filtered water is directly discharged into a front-end sewage treatment system or a treated water storage tank; along with the operation of the system, substances trapped on the metal membrane increase, the metal membrane is blocked, the filtration efficiency is lowered, the transmembrane pressure increases under the condition of keeping the membrane flux unchanged, when the water inlet pressure difference increases to a certain value, membrane cleaning is required, namely backwashing is carried out, firstly, a water inlet valve 17 and a water outlet valve 34 are closed, a backwashing water inlet valve 44 and a backwashing water outlet valve 45 are opened, a backwashing pump 42 is started to absorb water from a backwashing tank 33, backwashing water enters the filter through a backwashing water inlet 213 at the top of the filter, enters the cavity of the filter element through a perforated pipe, then passes through the metal membrane from inside to outside, backwashing is carried out on the metal membrane, the trapped substances are separated from the outer surface of the metal membrane under the action of water backwashing, and the backwashing concentrated water is collected to a backwashing concentrated water outlet 214 (shown by a dotted line arrow in figure 3) and is discharged to a front-end sewage treatment system or a concentrated water tank, so that the, the cost is saved; and after backwashing is finished, closing the backwashing pump and the backwashing valve, opening the booster pump, the water inlet valve and the water outlet valve, starting filtering, and repeating the processes.
The above-mentioned embodiments only represent one embodiment of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several changes and modifications can be made, which are within the scope of the present invention.
Claims (10)
1. A metal membrane filter element is characterized by comprising a metal membrane (23) which is of a cylindrical structure, a perforated pipe (24) which is longitudinally arranged in the metal membrane filter element, and a top connecting plate (25) and a bottom connecting plate (26) which are arranged at two ends of the perforated pipe, wherein two ends of the perforated pipe respectively abut against the top connecting plate and the bottom connecting plate and are communicated with a first through hole (27) formed in the top connecting plate and a second through hole (28) formed in the bottom connecting plate; the metal membrane includes a metal membrane filter layer (231) and a porous support layer (232) on both sides thereof.
2. The metal membrane cartridge of claim 1, wherein the metal membrane filter screen layer is made of stainless steel, and has a mesh number of 3000 mesh and a pore size of 5 μm; the porous supporting layer is a stainless steel round hole punching net.
3. A metal membrane cartridge according to any one of claims 1-2 wherein the metal membrane filter layers within the metal membrane are at least two stacked layers.
4. The metal membrane filter element according to claim 1, wherein the metal membrane is of a cylindrical structure, the top connecting plate comprises a first circular cover plate (251), a port (252) positioned on the outer side of the first circular cover plate, and a first annular boss (253) positioned on the inner side edge of the first circular cover plate, the outer diameter of the first annular boss is matched with the inner diameter of the cylindrical metal membrane, and a first through hole is longitudinally formed in the center of the port;
the bottom connecting plate includes second circular cover plate (261), is located second annular boss (262) of the inboard edge of first circular cover plate, and the circular cover plate of second is the arch, and the arch top is the platform form, and the second through-hole is seted up at the platform center, and second annular boss external diameter matches with cylindric metal film internal diameter, and first annular boss, the equal cartridge of second annular boss are inside the metal film.
5. A metal membrane filter constructed by using the metal membrane filter element as claimed in any one of claims 1 to 4, which comprises a shell (21) and the metal membrane filter element (22) fixed in the shell, wherein a first through hole on the metal membrane filter element is communicated with a backwashing water inlet (213) arranged at the top of the shell, and a second through hole on the metal membrane filter element is communicated with a filtering water outlet (212) arranged at the bottom of the shell; the upper part and the lower part of the side wall of the shell are respectively provided with a water inlet (211) and a backwashing concentrated water outlet (214).
6. The metal membrane filter of claim 5, wherein the housing is formed by buckling two semi-cylindrical cylinders and is fixedly connected by a locking member.
7. A sewage treatment depth filtering system constructed by using the metal membrane filter of claim 5 or 6, which is characterized by comprising a water inlet module (1), a metal membrane filter (2), a water outlet module (3), a filter backwashing module (4) and an automatic control module (5) for controlling the operation of the four modules which are connected in sequence; the water inlet module comprises a water supply tank (11) and a water inlet pipeline (12) connected with the water supply tank and the water inlet of the metal film filter; the water outlet module comprises a water outlet pipeline (31) connected with a filtering water outlet of the metal film filter and a pipeline diversion control valve (32) arranged on the water outlet pipeline, one end of the outlet of the water outlet pipeline is connected with a backwashing tank (33), and the other end of the outlet of the water outlet pipeline is connected with a sewage treatment system or a treated water storage tank; the filter backwashing module comprises a backwashing water inlet pipeline (41) and a backwashing water outlet pipeline (42), wherein two ends of the backwashing water inlet pipeline are respectively connected with a backwashing water inlet of the backwashing tank and the backwashing water inlet of the metal membrane filter, one end of the backwashing water outlet pipeline is connected with a backwashing concentrated water outlet, and the other end of the backwashing water outlet pipeline is connected with a sewage treatment system at the front end or is connected with a concentrated water tank.
8. The sewage treatment depth filtration system of claim 7, wherein a booster pump (13) is installed in a water supply tank of the water inlet module or on the water inlet pipe, a flow regulating valve (14) and a flow meter (15) are installed on the water inlet pipe, a pressure gauge (16) and a water inlet valve (17) are also installed on the water inlet pipe close to the water inlet of the metal membrane filter, and the booster pump, the flow regulating valve, the flow meter, the pressure gauge and the water inlet valve are all connected with the automatic control module.
9. The sewage treatment depth filtration system of claim 7, wherein the water outlet pipeline is further provided with a pressure gauge and a flow meter; a backwashing pump (43), a flowmeter and a backwashing water inlet valve (44) are arranged on the backwashing water inlet pipeline, and a backwashing water outlet valve (45) is arranged on the backwashing water outlet pipeline.
10. The sewage treatment depth filtration system of claim 7, wherein a liquid level ball float valve is arranged in the backwashing tank and connected with the automatic control module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921411495.1U CN210613021U (en) | 2019-08-28 | 2019-08-28 | Metal film filter core, metal film filter and sewage treatment depth filtration system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921411495.1U CN210613021U (en) | 2019-08-28 | 2019-08-28 | Metal film filter core, metal film filter and sewage treatment depth filtration system |
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| CN210613021U true CN210613021U (en) | 2020-05-26 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113368599A (en) * | 2021-08-16 | 2021-09-10 | 北京市一滴水环保科技有限公司 | Water treatment filtration system |
| CN116236908A (en) * | 2023-05-12 | 2023-06-09 | 山东建筑大学 | Nanofiltration membrane component for wastewater treatment |
-
2019
- 2019-08-28 CN CN201921411495.1U patent/CN210613021U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113368599A (en) * | 2021-08-16 | 2021-09-10 | 北京市一滴水环保科技有限公司 | Water treatment filtration system |
| CN116236908A (en) * | 2023-05-12 | 2023-06-09 | 山东建筑大学 | Nanofiltration membrane component for wastewater treatment |
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Address after: 100176 building 18-2, No. 2, Jingyuan North Street, Beijing Economic and Technological Development Zone, Daxing District, Beijing (Yizhuang group, high-end industrial area of Beijing Pilot Free Trade Zone) Patentee after: Beijing Yizhuang Environmental Technology Group Co.,Ltd. Address before: 100176 No. 5 Xihuan South Road, Daxing Economic and Technological Development Zone, Beijing Patentee before: Beijing Yizhuang Water Co.,Ltd. |
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