CN215842516U - Dull and stereotyped membrane backup pad of MBR that guiding gutter sectional area gradually becomes big - Google Patents
Dull and stereotyped membrane backup pad of MBR that guiding gutter sectional area gradually becomes big Download PDFInfo
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- CN215842516U CN215842516U CN202121881727.7U CN202121881727U CN215842516U CN 215842516 U CN215842516 U CN 215842516U CN 202121881727 U CN202121881727 U CN 202121881727U CN 215842516 U CN215842516 U CN 215842516U
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- groove
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- diversion trench
- gradually
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- 239000012528 membrane Substances 0.000 title claims abstract description 46
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 81
- 239000000463 material Substances 0.000 claims description 6
- 238000001914 filtration Methods 0.000 abstract description 19
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 239000000706 filtrate Substances 0.000 description 5
- 239000007788 liquid Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000010865 sewage Substances 0.000 description 3
- KAKZBPTYRLMSJV-UHFFFAOYSA-N Butadiene Chemical compound C=CC=C KAKZBPTYRLMSJV-UHFFFAOYSA-N 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 description 1
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Natural products C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005842 biochemical reaction Methods 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
Landscapes
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The utility model relates to an MBR flat membrane support plate with gradually-increased cross section area of a diversion trench, which comprises a frame, a filter plate, a water outlet pipe, a diversion trench and a hollow water flow collecting trench, wherein the filter plate is embedded in the frame; along the vertical downward direction, the cross-sectional area of the diversion trench is gradually reduced; the cross section area of the diversion trench far away from the water outlet pipe is reduced, and the negative pressure value of the diversion trench is increased by reducing the cross section area, so that the negative pressure in the diversion trench on the supporting plate is balanced, the water permeation efficiency of the filtering membrane is similar, and the water production dead zone caused by local dirt blockage on the surface of the membrane is avoided; the effective filtering area and the filtering efficiency of the die unit are improved.
Description
Technical Field
The utility model belongs to the technical field of sewage treatment equipment, and particularly relates to an MBR flat membrane support plate with gradually-increased cross-sectional area of a diversion trench.
Background
The membrane bioreactor, abbreviated as MBR, is a new technology combining membrane technology and biochemical reaction in sewage treatment, and is also called as membrane separation activated sludge process. The device is mainly used for replacing a secondary sedimentation tank in the traditional process, reducing the floor area of a sewage treatment plant, filtering out substances such as fixed suspended matters and colloids in raw water and improving the quality of effluent. The MBR flat plate membrane element is a core part of the MBR assembly, the MBR flat plate membrane element mainly comprises a supporting plate, a filtering membrane and flow guide cloth, the filtering membrane is fixed on one side of the supporting plate and is enclosed to form a cavity, and the flow guide cloth is arranged in the cavity. Guiding out the filtrate by arranging a guide groove on the support plate; the filter liquor guiding efficiency is directly influenced by the performance of the supporting plate.
The patent of the Chinese utility model with the publication number of CN203886426U discloses a support plate for a flat membrane element, which comprises a plastic thin plate with alternate longitudinal diversion trenches on the front and back sides, wherein the support plate is symmetrically provided with vertical strip-shaped bosses along the front and back sides of the longitudinal edge, the bosses on the front and back sides are provided with grooves or flanges which can be matched and connected with each other, the longitudinal middle area on the two sides of the support plate is provided with at least one transverse diversion trench which transversely extends to the outermost longitudinal diversion trench with the width, and a water nozzle connected with the transverse diversion trench; effectively overcome prior art and need fix a position the installation with U type slot or need compress tightly but need seal the problem with straining mechanisms such as screw rod. When the flat plate die element uses the supporting plate, the self-priming pump leads the interior of the diversion trench on the supporting plate to be in a negative pressure state through the diversion pipe; in the course of the work, the negative pressure in the guiding gutter that is close to the honeycomb duct is greater than the negative pressure in the guiding gutter of keeping away from the honeycomb duct, leads to filtration membrane efficiency difference that permeates water, very easily causes the local dirty stifled of mould surface, appears producing the water blind spot, reduces the effective filtration area of mould unit.
SUMMERY OF THE UTILITY MODEL
In order to balance negative pressure in the diversion trench on the supporting plate and enable the water permeation efficiency of the filtering membrane to be similar, the water production dead zone caused by local fouling and blocking on the surface of the membrane is avoided; the utility model provides an MBR flat membrane support plate with gradually-increased sectional area of a diversion trench; in order to achieve the purpose, the technical scheme adopted by the utility model is as follows:
an MBR flat membrane support plate with gradually-increased flow guide groove sectional area comprises a frame and a filter plate, wherein the filter plate is embedded in the frame, the MBR flat membrane support plate with gradually-increased flow guide groove sectional area further comprises a water outlet pipe, a flow guide groove and a hollow water flow collecting groove, the water outlet pipe is inserted and fixed at the upper end part of the frame, the flow guide groove and the hollow water flow collecting groove are respectively arranged on one side surface of the filter plate, the periphery of the flow guide groove is respectively communicated with the hollow water flow collecting groove, and the upper end part of the hollow water flow collecting groove is communicated with the lower end of the water outlet pipe; in the vertically downward direction, the cross-sectional area of the guide groove is gradually reduced.
The MBR flat membrane support plate with gradually-increased sectional area of the diversion trench has the beneficial effects that: when the self-priming pump is connected with the self-priming pump through the hose, negative pressure is formed in the diversion trench through the water outlet pipe and the hollow water flow collecting trench; the diversion trench is set to be the diversion trench with the gradually reduced cross-sectional area along the vertical downward direction, so that the cross-sectional area of the diversion trench far away from the water outlet pipe is reduced, the negative pressure value of the diversion trench is increased by reducing the cross-sectional area, the negative pressure in the diversion trench on the supporting plate is balanced, the water permeable efficiency of the filtering membrane is similar, and the water production dead zone caused by local dirt blockage on the surface of the membrane is avoided; the effective filtering area and the filtering efficiency of the die unit are improved.
Further, the guiding gutter is the recess of seting up on the surface of filter plate, the cross section of recess is square, the groove depth of recess is no longer than 2mm, the groove width of recess is 0.2mm ~2.5 mm.
Has the advantages that: the guide groove is arranged into a groove with a square cross section, so that the guide groove is convenient to process and open; controlling the groove depth of the groove to be not more than 2mm and the groove width to be 0.2 mm-2.5 mm; the transmission of negative pressure and the gathering of filtrate in the diversion trench are facilitated.
Furthermore, the flow guide grooves comprise two groups, and the two groups of flow guide grooves are arranged in a crossed manner; each group of guide grooves comprises a plurality of guide grooves, the guide grooves are uniformly arranged at intervals in the inclined direction, and the groove interval between every two adjacent guide grooves is 10-20 mm.
Has the advantages that: the diversion trenches are distributed in a crossed matrix mode, and are uniformly arranged on the filter plate at intervals, so that the uniformity of the diversion trenches is improved, the water permeating efficiency of the filter membrane is similar, and the water producing dead zone caused by local dirt blockage on the surface of the filter membrane is reduced.
Further, the cross-sectional area of the hollow water flow collecting groove is gradually reduced in a vertically downward direction.
Has the advantages that: the hollow water flow collecting groove is set to be the collecting groove with the cross section area gradually reduced, so that the negative pressure in the hollow water flow collecting groove is kept balanced, and the filtering liquid can be sucked out quickly.
Furthermore, the cross section of the hollow water flow collecting groove is square, the groove depth of the hollow water flow collecting groove is not more than 2mm, and the groove width of the hollow water flow collecting groove is 4 mm-5.5 mm.
Has the advantages that: the hollow water flow collecting groove is prevented from being formed too deeply, the strength of the supporting plate is reduced, and the groove width is set to be 4-5.5 mm; the filtering liquid can be sucked out from the hollow water flow collecting groove quickly.
Furthermore, the water outlet pipes comprise two groups, are respectively inserted and fixed at the upper end part of the frame and are symmetrically arranged about the center line of the frame.
Has the advantages that: the water outlet pipes are arranged into two groups and are symmetrically distributed, so that the balance of negative pressure in the diversion trench is facilitated, and the filtrate in the hollow water flow collecting trench is quickly sucked out.
Furthermore, the MBR flat membrane supporting plate with the gradually-increased cross-sectional area of the diversion trench further comprises a handle plate, and the lower end of the handle plate is fixed in the middle of the upper end face of the frame.
Has the advantages that: the handle plate provides a holding point, so that the support plate can be conveniently taken, put and installed.
Furthermore, the surface structures of the two sides of the filter plate are the same, and a flow guide groove and a hollow water flow collecting groove are formed in the filter plate.
Has the advantages that: the backup pad both sides are utilized simultaneously, improve the utilization ratio of backup pad, reduce the use quantity of backup pad in the flat sheet membrane element, reduce cost.
Furthermore, the frame and the filter plate are of an integrated structure and are integrally molded by casting of an ABS material.
Has the advantages that: the frame and the filter plate are arranged into an integrated structure, the structure is simple, the production is simple and convenient, and the support plate is made of ABS materials, so that the support plate is high in strength and light in weight.
Drawings
Fig. 1 is a front view of an embodiment of an MBR flat membrane support plate with gradually increasing cross-sectional area of a flow guide groove according to the present invention;
fig. 2 is a partial sectional view of an embodiment of the MBR flat membrane support plate according to the present invention in which the sectional area of the baffle groove is gradually increased.
Reference numbers in the figures: 1-frame, 2-filter plate, 3-outlet pipe, 4-diversion trench, 5-hollow water flow gathering trench, and 6-handle plate.
Detailed Description
The utility model is described in further detail below with reference to the following figures and detailed description:
the specific structure of the MBR flat membrane support plate embodiment with gradually-increased cross-sectional area of the diversion trench is shown in fig. 1 and fig. 2, and comprises a frame 1, a filter plate 2, a water outlet pipe 3, a diversion trench 4 and a hollow water flow collecting trench 5, wherein the filter plate 2 is embedded in the frame 1, and the periphery of the filter plate 2 is sealed and fixed with the frame 1. The water outlet pipe 3 is inserted and fixed at the upper end part of the frame 1, the diversion trench 4 and the hollow water flow collecting trench 5 are respectively arranged on one side surface of the filter plate 2, the periphery of the diversion trench 4 is respectively communicated with the hollow water flow collecting trench 5, and the upper end part of the hollow water flow collecting trench 5 is communicated with the lower end of the water outlet pipe 3; in the vertically downward direction, the cross-sectional area of the baffle groove 4 gradually decreases.
The flow guide groove 4 is a groove formed in the surface of the filter plate 2, the cross section of the groove is square, the groove depth of the groove is not more than 2mm, and the groove width of the groove is 0.2 mm-2.5 mm; the diversion trench 4 is arranged into a groove with a square cross section, so that the diversion trench 4 is convenient to process and open; controlling the groove depth of the groove to be not more than 2mm and the groove width to be 0.2 mm-2.5 mm; the transmission of negative pressure and the gathering of filtrate in the diversion trench 4 are facilitated. In this embodiment, the groove depth of the groove is 1.5mm, the groove width at the upper end of the groove is 2.5mm, and the groove width at the lower end is 0.5 mm. In other embodiments, the groove depth of the groove is 2mm, the groove width at the upper end of the groove is 2mm, and the groove width at the lower end of the groove is 0.2 mm.
The diversion trenches 4 comprise two groups, and the two groups of diversion trenches 4 are arranged in a crossed manner; each group of guide grooves 4 comprises a plurality of guide grooves 4, the guide grooves 4 are uniformly arranged at intervals along the inclined direction, and the groove distance between two adjacent guide grooves 4 is 10-20 mm; the diversion trenches 4 are distributed in a crossed matrix type, so that the diversion trenches 4 are uniformly arranged on the filter plate 2 at intervals, the uniformity of the diversion trenches 4 is improved, the water permeating efficiency of the filter membrane is similar, and the water producing dead zone caused by local dirt blocking on the surface of the membrane is reduced. In the present embodiment, the distance between two adjacent channels 4 is 15 mm. In other embodiments, the groove spacing between two adjacent channels is 10mm or 20mm instead of 15 mm.
In the present embodiment, the cross-sectional area of the hollow water collecting channel 5 is gradually reduced in the vertically downward direction; the hollow water flow collecting groove 5 is set to be a collecting groove with the cross section area gradually reduced, so that the negative pressure in the hollow water flow collecting groove 5 is kept balanced, and the filtering liquid can be sucked out quickly. The cross section of the hollow water flow collecting groove 5 is square, the groove depth of the hollow water flow collecting groove 5 is not more than 2mm, and the groove width of the hollow water flow collecting groove 5 is 4 mm-5.5 mm; the hollow water flow collecting groove 5 is prevented from being formed too deeply, the strength of the supporting plate is reduced, and the groove width is set to be 4 mm-5.5 mm; the filtering liquid can be sucked out from the hollow water flow collecting groove 5 quickly. The depth of the hollow water flow collecting groove 5 is 1.5mm, and the groove width is 5 mm. In other embodiments, the groove depth of the hollow water flow collecting groove is specifically 2mm, and the groove width is set by 4mm or 5.5mm instead of 5 mm.
In this embodiment, the water outlet pipes 3 comprise two groups, which are respectively inserted and fixed at the upper end of the frame 1 and are symmetrically arranged about the center line of the frame 1; the water outlet pipes 3 are arranged into two groups and are symmetrically distributed, so that the balance of negative pressure in the diversion trench 4 is facilitated, and the filtrate in the hollow water flow collecting trench 5 is quickly sucked out. The MBR flat membrane support plate with gradually-increased cross section of the diversion trench also comprises a handle plate 6, and the lower end of the handle plate 6 is fixed in the middle of the upper end face of the frame 1; the handle plate provides a holding point, so that the support plate can be conveniently taken, put and installed. In other embodiments, the number of the groups of the water outlet pipes is 3 or more, the water outlet pipes are uniformly arranged at the upper end part of the frame at intervals and inserted through the frame.
In the embodiment, the surface structures of both sides of the filter plate 2 are the same, and both are provided with a diversion trench 4 and a hollow water flow collecting trench 5; the backup pad both sides are utilized simultaneously, improve the utilization ratio of backup pad, reduce the use quantity of backup pad in the flat sheet membrane element, reduce cost. The frame 1 and the filter plate 2 are of an integrated structure and are integrally cast and molded by ABS materials; the frame 1 and the filter plate 2 are arranged into an integrated structure, the structure is simple, the production is simple and convenient, and the support plate is made of an ABS material (the ABS material is specifically acrylonitrile/butadiene/styrene copolymer), so that the support plate is high in strength and light in weight. In other embodiments, the frame and the filter plate are in a split structure, and the frame and the filter plate are fixed by adopting hot melting or ultrasonic welding.
When the self-priming pump is used, when the self-priming pump is connected with the self-priming pump through the hose, negative pressure is formed in the diversion trench 4 through the water outlet pipe 3 and the hollow water flow collecting trench 5; the diversion trench 4 is set into the diversion trench 4 with the cross sectional area gradually reduced along the vertical downward direction, so that the cross sectional area of the diversion trench 4 far away from the water outlet pipe 3 is reduced, the negative pressure value of the diversion trench 4 is increased by reducing the cross sectional area, the negative pressure in the diversion trench 4 on the supporting plate is balanced, the water permeable efficiency of the filtering membrane is similar, and the water production dead zone caused by partial dirt blockage on the surface of the membrane is avoided; the effective filtering area and the filtering efficiency of the die unit are improved.
In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and substitutions can be made without departing from the technical principle of the present invention, and these modifications and substitutions should also be regarded as the protection scope of the present invention.
Claims (9)
1. An MBR flat membrane support plate with gradually-increased sectional areas of flow guide grooves comprises a frame and a filter plate, wherein the filter plate is embedded in the frame, and the MBR flat membrane support plate is characterized by further comprising a water outlet pipe, a flow guide groove and a hollow water flow collecting groove, wherein the water outlet pipe is inserted and fixed at the upper end part of the frame, the flow guide groove and the hollow water flow collecting groove are respectively arranged on one side surface of the filter plate, the periphery of the flow guide groove is respectively communicated with the hollow water flow collecting groove, and the upper end part of the hollow water flow collecting groove is communicated with the lower end of the water outlet pipe; in the vertically downward direction, the cross-sectional area of the guide groove is gradually reduced.
2. The MBR flat membrane support plate with the gradually-increased cross-sectional area of the diversion trench of claim 1, wherein the diversion trench is a groove formed on the surface of the filter plate, the cross section of the groove is square, the groove depth of the groove is not more than 2mm, and the groove width of the groove is 0.2 mm-2.5 mm.
3. The MBR flat membrane support plate with gradually-increased cross-sectional area of the flow guide grooves according to claim 2, wherein the flow guide grooves comprise two groups, and the two groups of flow guide grooves are arranged in a crossed manner; each group of guide grooves comprises a plurality of guide grooves, the guide grooves are uniformly arranged at intervals in the inclined direction, and the groove interval between every two adjacent guide grooves is 10-20 mm.
4. The MBR flat membrane support plate according to claim 1, wherein the cross-sectional area of the hollow water flow collecting tank is gradually reduced in a vertically downward direction.
5. The MBR flat membrane support plate with the gradually-increased cross-sectional area of the diversion trench as claimed in claim 3, wherein the cross section of the hollow water flow collecting trench is square, the depth of the hollow water flow collecting trench is not more than 2mm, and the width of the hollow water flow collecting trench is 4 mm-5.5 mm.
6. The MBR flat membrane support plate with the gradually-increased cross-sectional area of the diversion trench of claim 1, wherein the water outlet pipes comprise two groups, which are respectively inserted and fixed at the upper end part of the frame and are symmetrically arranged about the center line of the frame.
7. The MBR flat membrane support plate with the gradually increasing cross-sectional area of the flow guide groove as set forth in claim 1, further comprising a handle plate, wherein the lower end of the handle plate is fixed to the middle of the upper end surface of the frame.
8. The MBR flat membrane supporting plate with the gradually-increased cross-sectional area of the diversion trenches as claimed in claim 1, wherein the surface structures on both sides of the filter plate are the same, and the diversion trenches and the hollow water flow collecting trenches are formed on both sides of the filter plate.
9. The MBR flat membrane supporting plate with the gradually-increased cross-sectional area of the diversion trench as claimed in claim 1, wherein the frame and the filter plate are of an integral structure and are integrally cast and molded by ABS material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121881727.7U CN215842516U (en) | 2021-08-12 | 2021-08-12 | Dull and stereotyped membrane backup pad of MBR that guiding gutter sectional area gradually becomes big |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121881727.7U CN215842516U (en) | 2021-08-12 | 2021-08-12 | Dull and stereotyped membrane backup pad of MBR that guiding gutter sectional area gradually becomes big |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215842516U true CN215842516U (en) | 2022-02-18 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121881727.7U Active CN215842516U (en) | 2021-08-12 | 2021-08-12 | Dull and stereotyped membrane backup pad of MBR that guiding gutter sectional area gradually becomes big |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215842516U (en) |
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2021
- 2021-08-12 CN CN202121881727.7U patent/CN215842516U/en active Active
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Address after: Building 12, No. 133 Yaozhai Road, Jinshui District, Zhengzhou City, Henan Province, 450000, 2806 Patentee after: Walker Environmental Technology Co.,Ltd. Address before: 450000 302, office building, No.27, zhengliu street, Jinshui District, Zhengzhou City, Henan Province Patentee before: Grenkley Environmental Technology Co.,Ltd. |