CN214715728U - External pressure type hollow fiber membrane component - Google Patents
External pressure type hollow fiber membrane component Download PDFInfo
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- CN214715728U CN214715728U CN202120508133.5U CN202120508133U CN214715728U CN 214715728 U CN214715728 U CN 214715728U CN 202120508133 U CN202120508133 U CN 202120508133U CN 214715728 U CN214715728 U CN 214715728U
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Abstract
An external pressure type hollow fiber membrane component belongs to the technical field of membrane components. One end of the membrane wire is connected with the water inlet end glue injection layer, the other end of the membrane wire is connected with the water production end glue injection layer, the water production end glue injection layer is attached to the inclination angle glue injection layer, the outer circumference of the central gas-liquid guide pipe is respectively connected with the water inlet end separation plate and the aeration wing, the aeration wing is provided with aeration holes, and the outer circumference of the concentrated water central pipe is respectively connected with the water production end separation plate. The upper end of the membrane tube of the column type hollow fiber membrane component is connected with a water production end cover, the lower end of the membrane tube of the column type hollow fiber membrane component is connected with a water inlet end cover, one end of the central tube is connected with a concentrated water central tube, and the other end of the central tube is connected with a central gas-liquid guide tube. The utility model discloses an aeration wing both sides bottom aeration hole aeration has not only increased bubble and membrane silk area of contact, and the bubble spills over the direction simultaneously and has increased perpendicularly with the membrane silk direction with the horizontal shearing force of membrane silk, makes membrane silk shake volume increase, easily the membrane silk pollutant is got rid of.
Description
Technical Field
The utility model relates to an external pressure type hollow fiber membrane subassembly belongs to membrane module technical field.
Background
The contact area of air bubbles and lower end membrane threads in the existing column type hollow fiber membrane component air scrubbing or air water scrubbing is small, so that the pollution rate is accelerated due to poor lower end air scrubbing effect; when the membrane assembly operates, pollutants in concentrated solution at the upper end of the assembly easily form dead zone pollution on the edges of the glue injection layer and the membrane shell, so that the pollution of membrane filaments on the upper part of the membrane assembly is aggravated, the cleaning effect of the column type membrane assembly is influenced, and the service life of an element is shortened.
In recent years, due to the rapid development of membrane materials and membrane technologies, and the advantages of high-efficiency separation, strong purification capability, high acid and alkali resistance and the like of hollow fiber membranes and membrane components thereof, the hollow fiber membranes and the membrane components thereof are widely applied to the fields of water treatment such as biology, chemical engineering, medicines, foods, municipal administration and the like. In order to improve the service efficiency of the hollow fiber membrane and prolong the service life of the hollow fiber membrane in application, the membrane component needs to have strong anti-pollution performance in the design of the hollow fiber membrane component, membrane filaments are easy to clean, and dead zone pollution is not easy to generate in the component.
The existing column type hollow fiber membrane component is aerated at the front edge opening of the aeration wing, and the contact area of air bubbles and lower end membrane threads in air scrubbing or air water scrubbing is small, so that the lower end air scrubbing effect is poor, and the pollution rate is high.
Most of the lower edges of the water production end gel injection layers and the membrane tubes of the existing hollow fiber membrane modules are right-angle-shaped, pollutants in concentrated solution of the modules easily form dead zone pollution in a right-angle zone during operation, and the pollution zone can accelerate membrane filament pollution under the water production end gel injection layers at the periphery of the pollution zone, so that the cleaning effect of the column type membrane modules is influenced, and the service life of elements is indirectly influenced.
Disclosure of Invention
In order to overcome the defects of the prior art, the utility model provides an external pressure type hollow fiber membrane component.
An external pressure type hollow fiber membrane component, one end of a membrane wire is connected with a water inlet end gel injection layer, the other end of the membrane wire is connected with a water production end gel injection layer, the water production end gel injection layer is attached with an inclination angle gel injection layer, the outer circumference of a central gas-liquid diversion pipe is respectively connected with a water inlet end division plate and an aeration wing, the aeration wing is provided with an aeration hole, the outer circumference of a concentrated water central pipe is connected with a water production end division plate, the upper end of a column type hollow fiber membrane component membrane pipe is connected with a water production end cover, the lower end of the column type hollow fiber membrane component membrane pipe is connected with a water inlet end cover, one end of the central pipe is connected with a concentrated water central pipe, a concentrated water diversion channel is a rectangular hole on the concentrated water central pipe, the other end of the concentrated water central pipe is connected with a concentrated water inlet, the other end of the central gas-liquid diversion pipe is connected with a gas inlet, and the gas inlet extends out of the water inlet end cover, the water inlet is arranged on the side surface of the water inlet end cover, the inner cavity of the water inlet end cover is communicated with the central gas-liquid guide pipe and the guide channel, the thick water port extends out of the water production end cover, the water production port is arranged on the side surface of the water production end cover, the inner cavity of the water production end cover is communicated with the water production end gel injection layer, the lower part of the water production end gel injection layer is bonded with the inclined angle gel injection layer, the centers of the water production end gel injection layer and the inclined angle gel injection layer are bonded on the excircle of the thick water central pipe, the thick water connecting pipe is connected with the thick water central pipe, and the hollow fiber membrane pipe is formed by injecting glue and fixing 4-8 membrane silk unit bundles, the central gas-liquid guide pipe and the thick water central pipe.
The hollow fiber membrane unit bundles are uniformly distributed and fixed in the membrane tube through the water production partition plate and the water inlet partition plate.
The hollow fiber membrane tube is composed of 4-8 membrane silk unit bundles, the upper and lower membrane silk unit bundles are respectively arranged along the concentrated water central tube and the central gas-liquid guide tube in a circumferential manner, the water inlet end of each membrane silk unit bundle is provided with a guide channel, and the diameter of each membrane silk unit bundle is 8-20 mm.
The section of the glue injection layer at the water inlet end of the membrane yarn unit bundle is arched, the upper section of the inclined angle glue injection layer is arched, and the lower section of the inclined angle glue injection layer is arched.
The outer diameter of the hollow fiber membrane tube is 90mm-250mm, and the length is 900mm-2000 mm.
The utility model has the advantages that: a column type hollow fiber membrane component with larger shaking amount, large contact surface aeration, high pollution resistance and long service life.
The utility model discloses an aeration wing both sides bottom aeration hole aeration has not only increased bubble and membrane silk area of contact, and the bubble spills over the direction simultaneously and has increased perpendicularly with the membrane silk direction with the horizontal shearing force of membrane silk, makes membrane silk shake volume increase, easily the membrane silk pollutant is got rid of.
The utility model discloses secondary injecting glue forms inclination injecting glue layer on the water end injecting glue layer is produced to the hollow fiber membrane subassembly, form certain obtuse angle inclination with the membrane tube, can not produce the blind spot basically and pollute, the water conservancy diversion passageway upper edge of dense water center tube is less than inclination injecting glue layer lower limb slightly simultaneously, inclination injecting glue layer and filtrate liquid level can form an umbelliform vacuum zone when filtration state or gas are cleaned the state, the pollutant can be followed the vacuum zone lower limb and pass through dense water conservancy diversion passageway discharge membrane element in the filtrate, the membrane silk end pollution can greatly reduced in the vacuum zone.
When the column type hollow fiber membrane component is used for filtering or aerating, an umbrella-shaped vacuum area can be formed on the upper edge straight line layer of the inclined glue injection layer at the upper part of the membrane component and the concentrated water diversion channel, concentrated water or pollutants can be discharged out of the membrane component along the lower edge of the vacuum area through the concentrated water diversion channel, and the pollution enrichment of the membrane wires at the upper end of the component and the dead area of the edge of the upper end can be greatly reduced.
Drawings
The invention itself, however, as well as many of the attendant advantages thereof, will be best understood by reference to the following detailed description when considered in connection with the accompanying drawings, wherein like reference numerals indicate like parts throughout the several views, and wherein:
fig. 1 is an appearance structural view of the column type hollow fiber membrane module of the present invention.
Fig. 2 is a vertical cross-sectional view of the column type hollow fiber ultrafiltration membrane module of the present invention.
Fig. 3 is the membrane yarn unit bundle of the column type hollow fiber ultrafiltration membrane module of the present invention.
Fig. 4 is a perspective view of the central gas-liquid flow guide pipe and the aeration wing of the column type hollow fiber ultrafiltration membrane of the present invention.
FIG. 5 is a perspective view of a central gas-liquid flow guide pipe and aeration wings of a conventional column-type hollow fiber ultrafiltration membrane.
Fig. 6 is the water inlet end face of the column type hollow fiber ultrafiltration membrane of the present invention.
Fig. 7 is the water producing end face of the column type hollow fiber ultrafiltration membrane of the present invention.
In the figure, a water production end cover 10, a concentrated water port 11, a water production port 12, a concentrated water connecting pipe 13, a concentrated water central pipe 14, an inclined glue injection layer 15, a water production end glue injection layer 16, a water production end separation plate 17, a concentrated water diversion channel 18, a water inlet end cover 20, a water inlet 21, a gas inlet 22, a diversion channel 23, a central gas-liquid diversion pipe 24, an aeration wing 25, an aeration hole 26, a water inlet end glue injection layer 27, a water inlet end separation plate 28, a column type hollow fiber membrane component 30, a membrane pipe 31, membrane filaments 32, a central pipe 33 and a membrane filament unit bundle 34.
The present invention will be further explained with reference to the drawings and examples.
Detailed Description
Obviously, many modifications and variations of the present invention based on the spirit of the present invention will be apparent to those skilled in the art.
As used herein, the singular forms "a", "an", "the" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. It will be understood that when an element, component or section is referred to as being "connected" to another element, component or section, it can be directly connected to the other element or section or intervening elements or sections may also be present. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
It will be understood by those skilled in the art that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art.
The following examples are further illustrative in combination to facilitate understanding of the embodiments, and are not to be construed as limiting the invention.
Example 1: as shown in fig. 1, 2, 3, 4, 5, 6 and 7, an external pressure type hollow fiber membrane module is provided, one end of a membrane wire 32 is connected with a water inlet end glue injection layer 27, the other end of the membrane wire 32 is connected with a water production glue injection layer 16, the water production end glue injection layer 16 is fixedly bonded with an inclined angle glue injection layer 15, the outer circumference of a central gas-liquid guiding pipe 24 is respectively connected with a water inlet end separation plate 28 and an aeration wing 25, the aeration wing 25 is provided with an aeration hole 26, the outer circumference of a concentrated water central pipe 14 is respectively connected with a water production end separation plate 17, the upper end of a column type hollow fiber membrane module 31 is connected with a water production end cover 10, the lower end of the column type hollow fiber membrane module 31 is connected with a water inlet end cover 20, one end of a central pipe 33 is connected with a concentrated water central pipe 14, a concentrated water guiding channel 18 is a rectangular hole on the concentrated water central pipe 14, the other end of the concentrated water central pipe 14 is connected with a concentrated water connecting pipe 13, the other end of the concentrated water connecting pipe 13 is a concentrated water connecting pipe 11, the other end of the central tube 33 is connected with the central gas-liquid guide tube 24, the other end of the central gas-liquid guide tube 24 is communicated with the gas inlet 22, the gas inlet 22 extends out of the water inlet end cover 20, the water inlet 21 is arranged on the side surface of the water inlet end cover 20, the inner cavity of the water inlet end cover 20 is communicated with the central gas-liquid guide tube 24 and the guide channel 23, the concentrated water port 11 extends out of the water production end cover 10, the water production port 12 is arranged on the side surface of the water production end cover 10, the inner cavity of the water production end cover 10 is communicated with the water production end glue injection layer 16, the lower part of the water production end glue injection layer 16 is bonded with the inclined angle glue injection layer 15, the centers of the water production end glue injection layer 16 and the inclined angle glue injection layer 15 are bonded on the excircle of the concentrated water central tube 14, the concentrated water connecting tube 13 is connected with the concentrated water central tube 14, and the hollow fiber membrane tube 31 is formed by 4-yarn unit bundles 34, the central gas-liquid guide tube 24 and the concentrated water central tube 14 are fixed in a glue injection mode.
Example 2: as shown in fig. 1, fig. 2, fig. 3, fig. 4, fig. 5, fig. 6 and fig. 7, an external pressure type hollow fiber membrane module comprises a membrane tube, a hollow fiber membrane yarn unit bundle fixed in the membrane tube, a water inlet end cover and a water production end cover, wherein the water inlet end cover at the lower part of the hollow fiber membrane module is provided with a water inlet and a gas inlet, and the water production end cover at the upper part of the hollow fiber membrane module is provided with a water production port and a concentrated water port; the membrane module comprises a plurality of membrane yarn unit bundles, a central gas-liquid flow guide pipe and a concentrated water central pipe, wherein each membrane yarn unit bundle consists of a water inlet end gel injection layer, a water production end gel injection layer, an inclination angle gel injection layer and a plurality of hollow fiber membrane yarns fixed between the water inlet end gel injection layer and the inclination angle gel injection layer, and each membrane yarn unit bundle is bonded with the central gas-liquid flow guide pipe and the concentrated water central pipe through the water inlet end gel injection layer and the water production end gel injection layer respectively.
The hollow fiber membrane component is internally composed of 4-8 membrane yarn unit bundles, the cross sections of the water inlet end gel injection layer and the water production end gel injection layer are in an arched shape, the central position of the water inlet end gel injection layer is a flow guide channel, the cross section of the upper end of the inclination angle gel injection layer is in an arched shape, the lower end of the inclination angle gel injection layer is in an arched shape, the water inlet end gel injection layer and the water production end gel injection layer are respectively arranged around the central gas-liquid flow guide pipe and the concentrated water central pipe at equal intervals in a circumferential mode, the membrane yarn unit bundles are uniformly separated by the separation plate, and the membrane yarn unit bundles are fixed in the membrane pipe through secondary gel injection.
4-8 partition plates are uniformly distributed around the central gas-liquid guide pipe, the aeration wings correspond to the partition plates one by one at the upper ends of the partition plates, 3 aeration holes are uniformly distributed at the lower ends of the two sides of the aeration wings respectively, the hole diameter is 6-10 mm, and the aeration wing span is 30-75 mm.
The diameter of the channel is 8mm-20mm, the included angle between the inclined angle glue injection layer and the water production glue injection layer is 25 degrees-30 degrees, and the outer diameter of the membrane tube is 90mm-250 mm.
A plurality of membrane yarn unit bundles in the hollow fiber membrane component are distributed around a central gas-liquid guide pipe, the central gas-liquid guide pipe is communicated with the aeration wings, when the membrane component is in operation and gas scrubbing or gas-water backwashing is carried out, gas is aerated from two sides of each aeration wing, the contact area of air bubbles and membrane yarns is increased, aeration dead zones are reduced, and the enrichment of membrane yarn pollutants at the lower part of the membrane component is reduced.
A flow guide channel is arranged at the center of each membrane filament unit beam at the water inlet end of the hollow fiber membrane component, and when the membrane component discharges sewage in operation, pollutants at the upper end of the peripheral glue injection layer are discharged through the flow guide channel.
The hollow fiber membrane tube 31 is formed by injecting glue and fixing 4-8 membrane yarn unit bundles 34, a central gas-liquid guide pipe 24 and a concentrated water central tube 14, a water inlet end glue injection layer 27 and a water production end glue injection layer 16 of each membrane yarn unit bundle 34 are arranged around the central gas-liquid guide pipe 24 and the concentrated water central tube 14 at equal intervals along the circumference respectively, the sections of the water inlet end glue injection layer 27 and the water production end glue injection layer 16 of each membrane yarn unit bundle 34 are both arched, the membrane yarn unit bundles are made of epoxy resin, polyurethane or silicon rubber, an inclined angle glue injection layer 15 is formed by injecting glue again after the water production end glue injection layer 16 is finished, and the material of the inclined angle glue injection layer is flexible epoxy resin, polyurethane or silicon rubber.
4-8 aeration wings 25 are uniformly distributed on the upper end of the central gas-liquid guide pipe 24 along the circumference and are communicated with the aeration wings 24, 3 aeration holes 26 are respectively arranged on the two sides of the lower edge of each aeration wing 24 with the length of 8-12mm, when the membrane assembly 30 is aerated, air passes through the central gas-liquid guide pipe 24 and the connected aeration wings 25 and overflows from the aeration holes 26, the membrane filaments 32 are subjected to gas scrubbing, dead zones can be reduced when the membrane filaments are scrubbed by aerating the aeration holes 26 on the two sides of the aeration wings closer to the water inlet end glue injection layer 27, the effective water production area of the membrane filaments is increased, the pollution of the aeration dead zones is greatly reduced, meanwhile, the transverse shearing force of the aeration holes on the two sides to the membrane filaments 32 is larger, the shaking amount of the membrane filaments 32 is larger, and the overall cleaning effect of the membrane filaments is better.
When the membrane module filters, the guide channel 23 and the aeration wing 25 of the central gas-liquid guide pipe 24 feed water together, so that water can be uniformly distributed; when the membrane module 30 discharges sewage, filtrate in the membrane tube 31 is discharged together through the central gas-liquid guide pipe 24 and the guide channel 23, and pollutants on the injection layer 27 at the water inlet end are taken out.
When the membrane assembly 30 is subjected to air scrubbing or air-water backwashing, the bubbles scrub the membrane filaments 32 and reach the upper part of the membrane assembly, part of the bubbles are directly discharged through the concentrated water diversion channel 18, and part of the bubbles reach the lower part of the inclined glue injection layer 15, because the concentrated water diversion channel 18 is not at the highest point, an umbrella-shaped vacuum area is formed on the inclined glue injection layer 15 and the outlet of the concentrated water diversion channel 18 along the horizontal line, pollutants are discharged through the concentrated water diversion channel 18 along the lower edge of the vacuum area, and the pollution of the membrane filaments in the vacuum area is greatly reduced. Because the part of the liquid attached to the membrane tube 31 by the inclined angle glue injection layer 15 has a certain inclined angle, bubbles can be scrubbed along the attached part of the inclined angle glue injection layer 15 and the membrane tube 31 during air scrubbing or air-water backwashing, and the pollution of dead zones of the attached part is basically avoided.
The contact area between the lower ends of the two sides of the aeration wing and the membrane filaments can be increased compared with the aeration of the front edge of the aeration wing, and the aeration holes are arranged at the lower ends of the aeration wing and are vertical to the membrane filaments.
The inclination angle glue injection layer formed by secondary glue injection of the glue injection layer at the water production end can form an inclination angle with the membrane tube, so that dead zone pollution is greatly reduced, and an umbrella-shaped vacuum area can be formed to reduce membrane filament pollution on the upper part of the assembly.
The contact area of aeration bubbles and membrane filaments is increased, so that aeration dead zones are reduced, the transverse shearing force of the membrane filaments can be increased at an aeration overflow port, the shaking amount of the membrane filaments of the assembly is increased, and the pollutant enrichment of the membrane filaments at the lower part of the membrane element is reduced.
When the column type hollow fiber membrane component is used for filtering, air scrubbing or air water washing, the inclined angle glue injection layer on the upper part of the membrane component forms an inclined angle with the membrane pipe and forms an umbrella-shaped vacuum area with the filtrate, so that membrane wire pollution on the upper end of the component and pollution of a dead area on the lower edge of the vacuum area can be greatly reduced.
As described above, although the embodiments of the present invention have been described in detail, it will be apparent to those skilled in the art that many modifications are possible without substantially departing from the invention and its effects. Therefore, all such modifications are included in the scope of the present invention.
Claims (5)
1. An external pressure type hollow fiber membrane component is characterized in that one end of a membrane wire is connected with a water inlet end gel injection layer, the other end of the membrane wire is connected with a water production end gel injection layer, the water production end gel injection layer is attached to an inclination angle gel injection layer, the outer circumference of a central gas-liquid guide pipe is respectively connected with a water inlet end separation plate and an aeration wing, the aeration wing is provided with an aeration hole, the outer circumference of a concentrated water central pipe is connected with a water production end separation plate, the upper end of a column type hollow fiber membrane component membrane pipe is connected with a water production end cover, the lower end of the column type hollow fiber membrane component membrane pipe is connected with a water inlet end cover, one end of the central pipe is connected with a concentrated water central pipe, a concentrated water guide channel is a rectangular hole in the concentrated water central pipe, the other end of the concentrated water central pipe is connected with a concentrated water connecting pipe, and the other end of the concentrated water connecting pipe is a concentrated water port; the other end of the central pipe is connected with a central gas-liquid guide pipe, the other end of the central gas-liquid guide pipe is communicated with a gas inlet, the gas inlet extends out of the water inlet end cover, the water inlet is arranged on the side surface of the water inlet end cover, and the inner cavity of the water inlet end cover is communicated with the central gas-liquid guide pipe and the guide channel; the dense water port extends out of the water production end cover, the water production port is arranged on the side face of the water production end cover, the inner cavity of the water production end cover is communicated with the water production end gel injection layer, the lower part of the water production end gel injection layer is bonded with the inclined angle gel injection layer, the centers of the water production end gel injection layer and the inclined angle gel injection layer are bonded on the excircle of the dense water central pipe, the dense water connecting pipe is connected with the dense water central pipe, and the hollow fiber membrane pipe is internally formed by fixing 4-8 membrane fiber unit bundles with a central gas-liquid flow guide pipe and a dense water central pipe through the water inlet end gel injection layer and the water production end gel injection layer respectively.
2. An external pressure type hollow fiber membrane module according to claim 1, wherein the hollow fiber membrane filament unit bundles are uniformly distributed and fixed in the membrane tube through a water production partition plate and a water inlet partition plate.
3. An external pressure type hollow fiber membrane module according to claim 1, wherein the inside of the hollow fiber membrane tube is composed of 4 to 8 membrane filament unit bundles, the upper and lower of the membrane filament unit bundles are respectively arranged along the central tube of the concentrated water and the central gas-liquid guide tube in a circumferential manner, and the water inlet end of each membrane filament unit bundle is provided with a guide channel with a diameter of 8mm to 20 mm.
4. An external pressure type hollow fiber membrane module as claimed in claim 1, wherein the cross section of the glue injection layer at the water inlet end of the membrane filament unit bundle is bow-shaped, the upper cross section of the inclined angle glue injection layer is bow-shaped, and the lower cross section of the inclined angle glue injection layer is inclined angle bow-shaped.
5. An external pressure type hollow fiber membrane module according to claim 1, wherein the hollow fiber membrane tube has an outer diameter of 90mm to 250mm and a length of 900mm to 2000 mm.
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| CN202120508133.5U CN214715728U (en) | 2021-03-10 | 2021-03-10 | External pressure type hollow fiber membrane component |
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| CN202120508133.5U CN214715728U (en) | 2021-03-10 | 2021-03-10 | External pressure type hollow fiber membrane component |
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| CN214715728U true CN214715728U (en) | 2021-11-16 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115121121A (en) * | 2022-04-27 | 2022-09-30 | 浙江长兴求是膜技术有限公司 | Membrane assembly, aeration device and cleaning method thereof and sewage treatment system |
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2021
- 2021-03-10 CN CN202120508133.5U patent/CN214715728U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115121121A (en) * | 2022-04-27 | 2022-09-30 | 浙江长兴求是膜技术有限公司 | Membrane assembly, aeration device and cleaning method thereof and sewage treatment system |
| CN115121121B (en) * | 2022-04-27 | 2023-10-31 | 浙江长兴求是膜技术有限公司 | Membrane module, aeration device and cleaning method thereof and sewage treatment system |
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Address after: 102206 room 2005, 2 / F, building 1, 23-2 shengshengyuan Road, Changping, Haidian District, Beijing Patentee after: Beijing Huateyuan Technology Co.,Ltd. Address before: 102206 room 2005, 2 / F, building 1, 23-2 shengshengyuan Road, Changping, Haidian District, Beijing Patentee before: Biyuan water source Membrane Technology Research Center (Beijing) Co.,Ltd. |