CN112569796A - Anti-pollution hollow fiber membrane component - Google Patents
Anti-pollution hollow fiber membrane component Download PDFInfo
- Publication number
- CN112569796A CN112569796A CN202011609647.6A CN202011609647A CN112569796A CN 112569796 A CN112569796 A CN 112569796A CN 202011609647 A CN202011609647 A CN 202011609647A CN 112569796 A CN112569796 A CN 112569796A
- Authority
- CN
- China
- Prior art keywords
- hollow fiber
- fiber membrane
- aeration
- sub
- fixed end
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D63/00—Apparatus in general for separation processes using semi-permeable membranes
- B01D63/02—Hollow fibre modules
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D65/00—Accessories or auxiliary operations, in general, for separation processes or apparatus using semi-permeable membranes
- B01D65/02—Membrane cleaning or sterilisation ; Membrane regeneration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D65/00—Accessories or auxiliary operations, in general, for separation processes or apparatus using semi-permeable membranes
- B01D65/08—Prevention of membrane fouling or of concentration polarisation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/14—Maintenance of water treatment installations
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/16—Regeneration of sorbents, filters
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The invention discloses an anti-pollution hollow fiber membrane component, which comprises an upper fixed end, a lower fixed end, an aeration main pipe, aeration branch pipes, a water production pipe, a membrane component joint and at least two hollow fiber membrane curtains which are respectively arranged between the upper fixed end and the lower fixed end, wherein the lower fixed end comprises a lower fixed end shell with an accommodating cavity and a sealing adhesive layer filled in the accommodating cavity; the upper surface of the sealing adhesive layer is high in the middle and low in the two sides along the extending direction of the sealing adhesive layer, the aeration branch pipe comprises at least one sub-aeration pipe array, the sub-aeration pipe array comprises n sub-aeration pipes which are respectively inserted into the sealing adhesive layer and extend upwards, the upper end surfaces of the upper openings of the sub-aeration pipes arranged on the left side and the right side in the sub-aeration pipe array are provided with a first end close to the middle part of the sealing adhesive layer and a second end opposite to the first end and far away from the middle part of the sealing adhesive layer, and the first end is higher than the second end; the pollution-resistant hollow fiber membrane component is not easy to accumulate pollutants such as sludge and has strong pollution resistance.
Description
Technical Field
The invention belongs to the technical field of preparation of separation membranes, and particularly relates to an anti-pollution hollow fiber membrane component.
Background
Along with the rapid development of society, water pollution is increasingly serious, people pay more and more attention to the prevention and treatment of water pollution, and the treatment requirement is higher and higher. The membrane separation technology has the advantages of high quality of produced water, no phase change, high automation degree and the like, and is a very important wastewater treatment technology in the field of water treatment at present. The core of the membrane separation technology is a membrane component, and the hollow fiber membrane component has the advantages of large filling density, large specific surface area and the like and is widely applied. However, the traditional membrane module has the defect that pollutants such as sludge and the like are easily accumulated at the bottom of a hollow fiber membrane filament, so that the membrane filament has high pollution speed, namely the membrane module has poor pollution resistance, and therefore, a membrane module with low pollution speed and high pollution resistance, which is difficult to accumulate sludge at the lower end of the membrane module, is urgently needed.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide an improved anti-pollution hollow fiber membrane component which is not easy to accumulate pollutants such as sludge and has strong anti-pollution performance.
The inventor of the invention researches and discovers that the upper surface of the lower fixed end of the existing hollow fiber membrane module is generally a plane parallel to the horizontal plane, the membrane module is aerated from the outer side of the membrane module, or the aeration hole vertically upwards aerates the membrane module and is circular, the aeration structure has small cleaning force on the surfaces of the hollow fiber membrane filaments and the upper surface of the lower fixed end, and because a plurality of hollow fiber membrane filaments are cast together in the hollow fiber membrane module, pollutants such as sludge and the like are easy to accumulate between the membrane filaments and the membrane curtain of the traditional membrane module, and because the upper surface of the lower fixed end is a plane parallel to the horizontal plane, the pollutants are not easy to fall off from the inside of the membrane module to the outside of the membrane module, so that the pollutants are quickly accumulated at the bottom of the hollow fiber membrane filaments, and the pollutant concentration of sewage in which the membrane module is located is gradually increased, thereby quickening the pollution speed of the membrane filaments of the hollow fiber membrane and quickly reducing the filtering performance of the membrane component, namely the traditional membrane component has poor pollution resistance. Furthermore, based on the above, the invention provides an improved anti-pollution hollow fiber membrane component, wherein the upper surface of the lower fixed end of the anti-pollution hollow fiber membrane component is high in the middle and low in two sides, and the opening of the aeration pipe in a specific orientation is designed, so that pollutants such as sludge and the like are easier to take away and clear, and the technical problem is effectively solved.
In order to achieve the purpose, the invention adopts the technical scheme that:
an anti-pollution hollow fiber membrane component, the hollow fiber membrane component includes last fixed end, lower fixed end, aeration house steward, aeration branch pipe, produces water pipe, membrane module joint, and set up respectively go up fixed end with two at least curtain hollow fiber membrane curtains between the fixed end down, two at least curtain hollow fiber membrane curtains parallel arrangement each other, hollow fiber membrane curtain comprises many hollow fiber membrane silk, the upper end of hollow fiber membrane curtain is fixed on going up the fixed end, the lower extreme of hollow fiber membrane curtain is fixed on the fixed end down, the fixed end is including being formed with the lower fixed end shell in holding chamber, filling down the fixed end shell the holding intracavity just is used for fixing the sealed glue film of the lower extreme of hollow fiber membrane curtain, the extending direction of sealed glue film with the length direction of hollow fiber membrane curtain is parallel, the aeration branch pipes are communicated with the aeration main pipe, and the aeration branch pipes are arranged between any two adjacent hollow fiber membrane curtains;
wherein, the upper surface of sealing glue layer is followed sealing glue layer's extending direction is middle high both sides low, aeration branch pipe includes the edge at least one sub aeration pipe array that sealing glue layer's extending direction set up, sub aeration pipe array is including inserting respectively and establishing sealed intraformational and the upwards sub aeration pipe that extends, n more than or equal to 3, arrange in the sub aeration pipe array in the left and right sides sub aeration pipe's upper end face has first end, the second end relative with first end, first end is close to sealing glue layer's middle part, the second end is kept away from sealing glue layer's middle part, first end is higher than the second end.
According to some preferred aspects of the present invention, an upper end surface of the upper opening of any one of the sub-aeration tubes is parallel to a position plane of the upper surface of the sealant layer from which the sub-aeration tube extends.
In the present invention, the reference to the "position plane" means a partial plane in the upper surface corresponding to the sub-aeration pipes passing through the sealant layer.
According to some preferred aspects of the present invention, the sub-aeration tubes extend in a vertical direction.
According to some preferred aspects of the present invention, the upper surface of the sealant layer is a continuously curved surface.
According to some preferred aspects of the invention, the bottom of the interior of the accommodating cavity is high in the middle and low on two sides. Furthermore, the bottom of the inside of the accommodating cavity is a smooth curved surface with a high middle and two low sides.
According to some preferred aspects of the invention, the upper edge of the accommodating cavity is high in the middle and low in two sides. Furthermore, the upper edge of the accommodating cavity is a smooth curve with a high middle part and two low sides.
According to some preferred aspects of the present invention, the hollow fiber membrane module further comprises a smooth membrane layer formed on the upper surface of the sealant layer, the smooth membrane layer having the same extended shape as the upper surface of the sealant layer.
According to some preferred aspects of the present invention, the sub-aeration tubes have an elliptical upper opening.
According to some preferred aspects of the present invention, in the sub-aeration tube array, the size of the upper opening of each sub-aeration tube is the same, or the size of the upper opening of each sub-aeration tube gradually decreases or increases from the middle to the left and right sides, and the size is the length of the upper opening or the width of the upper opening.
According to some preferred aspects of the present invention, the lower fixing tip has a circular or rectangular cross-section.
According to some preferred aspects of the present invention, the hollow fiber membrane curtain has three or more curtains, and the membrane curtain width of each curtain of the hollow fiber membrane curtain is the same.
According to some preferred aspects of the present invention, the hollow fiber membrane curtain has three or more curtains, and the width of the membrane curtain of each hollow fiber membrane curtain is gradually reduced from the middle to the front and rear sides.
In the present invention, the extending direction of the width of the hollow fiber membrane curtain corresponds to the width direction of the membrane module, and the longitudinal direction of the hollow fiber membrane curtain corresponds to the longitudinal direction of the membrane module.
In the present invention, the left, right, front and rear directions are with reference to the membrane modules, and the left-right direction corresponds to the longitudinal direction of the membrane modules and the front-rear direction corresponds to the width direction of the membrane modules.
Due to the application of the technical scheme, compared with the prior art, the invention has the following advantages:
the invention provides a lower fixed end and an aeration pipe with a specific structure based on the problem of poor pollution resistance of a membrane component in the prior art, in particular to a sealant layer with an upper surface with a specific shape and an upper opening (also called as an aeration hole) sub-aeration pipe with a specific shape.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.
FIG. 1 is a schematic top cross-sectional view of an anti-fouling hollow fiber membrane module according to an embodiment of the present invention;
FIG. 2 is a schematic sectional view A-A of an anti-fouling hollow fiber membrane module according to an embodiment of the present invention;
FIG. 3 is a schematic sectional view B-B of an anti-fouling hollow fiber membrane module according to an embodiment of the present invention;
FIG. 4 is an enlarged schematic view of detail C of FIG. 3;
in the above drawings: 1. hollow fiber membrane filaments; 2. fixing the end head; 31. a lower fixed end; 32. sealing the upper surface of the adhesive layer; 33. a sub-aeration pipe; 34. the upper opening of the sub aeration pipe; 41. an aeration main pipe; 42. a water production pipe; 43. and (4) a membrane module joint.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.
In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated 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 formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise explicitly specified or limited, a first feature "on" or "under" a second feature may be directly contacted with the first and second features, or indirectly contacted with the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.
Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
As shown in fig. 1 to 4, the present example provides an anti-fouling hollow fiber membrane module comprising an upper fixed end 2, a lower fixed end 31, an aeration main 41, aeration branch pipes, a water production pipe 42, a membrane module joint 43, and at least two curtains of hollow fiber membrane membranes disposed between the upper fixed end 2 and the lower fixed end 31, respectively.
The at least two curtains of hollow fiber membrane curtains are arranged in parallel, each hollow fiber membrane curtain is composed of a plurality of hollow fiber membrane filaments 1, the upper end of each hollow fiber membrane curtain is fixed on the upper fixed end 2, the lower end of each hollow fiber membrane curtain is fixed on the lower fixed end 31, each lower fixed end 31 comprises a lower fixed end shell with a containing cavity, and a sealing adhesive layer which is filled in the containing cavity of the lower fixed end shell and used for fixing the lower end of each hollow fiber membrane curtain, the extending direction of the sealing adhesive layer is parallel to the length direction of the hollow fiber membrane curtain, each aeration branch pipe is communicated with the aeration main pipe 41, and each aeration branch pipe is arranged between any two adjacent curtains of the hollow fiber membrane curtains;
the upper surface 32 of sealant layer is middle high both sides low along sealant layer's extending direction, the aeration branch pipe includes at least one sub-aeration pipe array that the extending direction along sealant layer set up, sub-aeration pipe array is including inserting the sub-aeration pipe 33 that establishes in sealant layer and upwards extend out respectively, n more than or equal to 3, the last open-ended up end of the sub-aeration pipe 33 who lists in the left and right sides in the sub-aeration pipe array has first end, the second end relative with first end, first end is close to sealant layer's middle part, sealant layer's middle part is kept away from to the second end, first end is higher than the second end.
Specifically, in this embodiment, as shown in fig. 1-2, the membrane module in this embodiment is provided with two vertical curtains of hollow fiber membrane curtains arranged in parallel, the upper end of which is cast into the upper fixing head 2 and the lower end of which is cast into the lower fixing head 31.
In this embodiment, the water producing pipe 42 is bonded to the upper fixing end 2 (the upper fixing end 2 includes an upper fixing end shell and a bonding layer formed by bonding and sealing glue, the water producing pipe 42 is bonded and fixed by the bonding and sealing glue), the water producing pipe 42 is communicated with the inside of the hollow fiber membrane filament 1 and connected with the membrane module joint 43, and can be connected with a using device of membrane modules such as a membrane frame through the membrane module joint 43, and water filtered by the membrane modules in this embodiment can be led out through the water producing pipe 42.
In this example, as shown in fig. 1, the aeration main pipe 41 is disposed at a position close to the membrane module joint on one side, is bonded with the lower fixing end 31, is communicated with the sub-aeration pipes 33, and further aerates the membrane modules through the sub-aeration pipes 33, and the aeration main pipe 41 is connected with other external aeration devices.
Specifically, the "position plane" mentioned in this example refers to a partial plane in the upper surface corresponding to the sub-aeration tubes 33 passing through the sealant layer, and the sub-aeration tubes 33 extend in the vertical direction.
Further, the cross section of the lower fixing terminal 31 is rectangular, and the upper surface 32 of the sealant layer in this example is a continuous curved surface which is high in the middle and gradually decreases toward both sides.
In this example, the hollow fiber membrane module further includes a smooth membrane layer formed on the upper surface 32 of the sealant layer, the smooth membrane layer has the same extension shape as the upper surface 32 of the sealant layer, and the thickness of the smooth membrane layer can be very thin, so as to achieve a smooth function. Therefore, the upper surface 32 of the sealing adhesive layer is a smooth curved surface, so that the smooth discharge of pollutants such as sludge is ensured, and the sludge discharge effect is not influenced.
Furthermore, in this example, n sub-aeration pipes 33 in the sub-aeration pipe array are cylindrical and arranged in parallel and inserted into the sealant layer, the lower end is communicated with the aeration main pipe 41, the upper opening at the upper end is inclined, specifically, inclined toward the outside, the upper opening 34 of the sub-aeration pipe can be oval, and the upper end surface of the upper opening 34 of any sub-aeration pipe is parallel to the position plane of the upper surface 32 of the sealant layer extending from the sub-aeration pipe, thereby ensuring excellent sludge discharge effect.
Specifically, in the sub-aeration pipe array, the sizes of the upper openings 34 of the respective sub-aeration pipes are the same, or the sizes of the upper openings 34 of the respective sub-aeration pipes are gradually decreased or increased from the middle to the left and right sides. The upper openings 34 of the neutron aeration tubes in this example are substantially the same size.
In this embodiment, the bottom of the interior of the accommodating cavity is a smooth curved surface with a high middle and two low sides, and the upper edge of the accommodating cavity is a smooth curved surface with a high middle and two low sides, so that the sealant layer with the specific shape can be formed more conveniently.
Specifically, the membrane module in this example can be prepared by, but is not limited to, the following methods, which are merely exemplary, and the parts not described are respectively performed according to conventional methods in the prior art:
1) firstly, dividing the hollow fiber membrane yarn 1 into two curtains of hollow fiber membrane curtains, casting the upper end of the hollow fiber membrane curtain into the upper fixed end 2, then cutting off the upper end part of the upper fixed end 2, and bonding the upper fixed end 2 and the water production pipe 42 together to ensure that the upper end of the hollow fiber membrane yarn 1 is communicated with the water production pipe 42.
2) The lower ends of the two curtains of hollow fiber membrane curtains are arranged in the containing cavity of the lower fixed end shell of the lower fixed end 31, the sub aeration pipes 33 are arranged in the containing cavity of the lower fixed end shell and positioned in the middle of the two curtains of hollow fiber membrane curtains (or the sub aeration pipes 33 and the lower fixed end shell are directly integrally formed), the sealant A with high viscosity and high curing speed is gradually added from the middle position of the containing cavity of the lower fixed end shell, the sealant A is naturally cast into a curved surface with a middle high upper surface and gradually reduced towards two sides, and the upper surface of the sealant A is lower than the upper edge of the containing cavity by about 1-10mm, preferably 5 mm. After the sealant A with high viscosity and high curing speed is completely solidified, the hollow fiber membrane filaments 1 are firmly cast in the accommodating cavity of the lower fixed end shell. And then gradually adding the sealant B which can form a smooth surface and has low viscosity into the accommodating cavity from the middle position of the accommodating cavity of the lower fixed end shell, naturally casting the sealant B on the surface of the cured sealant A, enabling the upper surface of the sealant B to be almost flush with the upper edge of the accommodating cavity of the lower fixed end shell, and after the sealant B is completely cured, forming the upper surface 32 of the sealing adhesive layer which is smoothly modified by the surface into a smooth curved surface which is high in the middle and gradually reduces towards two sides.
In this step, since the bottom inside the accommodating cavity of this embodiment is a smooth curved surface with a high middle part and two low sides, and the upper edge of the accommodating cavity is a smooth curved surface with a high middle part and two low sides, when the membrane filaments are cast to the lower fixed end shell of the lower fixed end 31, the sealant a with high viscosity and high curing speed is poured from the middle of the accommodating cavity of the lower fixed end shell, so that the membrane filaments are naturally cast into a curved surface with a high middle part and gradually reduced towards the left and right sides of the membrane module, and the membrane filaments are firmly fixed in the lower fixed end. Then pouring a small amount of low-viscosity sealant B with good fluidity from the middle of the accommodating cavity of the lower fixed end shell, and naturally casting the sealant B to form a very smooth curved surface, so that the smooth curved surface which is high in the middle and gradually reduced towards the left side and the right side can be directly obtained when the membrane filaments are cast into the lower fixed end, no additional treatment process is needed, the preparation method is simple, and the manufacturing cost is low. In addition, the smooth curved surface formed by the sealant B with low viscosity can reduce the friction force on the hollow fiber membrane yarn 1, thereby reducing the damage probability of the membrane yarn in the using process.
When the sealant B is not adopted, the upper surface of the sealant A can be directly almost flush with the upper edge of the accommodating cavity of the lower fixed end shell;
3) the lower fixing end 31 is bonded with the aeration main pipe 41, so that the sub-aeration pipes 33 are communicated with the aeration main pipe 41.
4) 4 membrane component joints 43 are respectively bonded with the left end and the right end of the water production pipe 42 and the aeration main pipe 41, so that the manufacture of a complete anti-pollution hollow fiber membrane component is completed.
In this example, the membrane module produced water enters the produced water pipe 42 through the inside of the hollow fiber membrane filaments 1, and then is discharged to a produced water pipe other than the membrane module through the membrane module joint 43.
In this example, the air flow enters the aeration main pipe 41 through the membrane module joint 43, then enters the sub-aeration pipes 33 inserted in the sealant layer of the lower fixed end head 31, and finally is exposed through the upper openings 34 of the inclined oval sub-aeration pipes parallel to the corresponding position plane on the upper surface 32 of the sealant layer.
In conclusion, the anti-pollution hollow fiber membrane module of the invention has the following effects:
1) because the upper surface 32 of the sealant layer of the lower fixed end 31 is a smooth curved surface which is high in the middle and gradually decreases towards the left and right sides, and because the adhesion force of the pollutants on the smooth surface is small and the pollutants easily slide from the high position to the ground position, when the membrane module is aerated, the pollutants are more easily and gradually slide off the membrane module from the upper surface 32 of the sealant layer of the smooth lower fixed end 31 under the impact of air bubbles, so that the pollutants are not easily accumulated on the upper surface 32 of the sealant layer of the lower fixed end 31, the bottom of the hollow fiber membrane wire 1 of the membrane module is kept in a relatively clean state for a long time, the pollution speed of the hollow fiber membrane wire 1 is reduced, and the anti-pollution performance of the membrane module is improved.
2) Since the upper opening 34 (hereinafter, also referred to as "aeration hole") of the sub-aeration pipe is parallel to the position plane of the upper surface 32 of the sealant layer extending from the sub-aeration pipe, that is, the upper opening 34 of the sub-aeration pipe is inclined to the left and right outer sides of the membrane module, when the air bubbles burst from the aeration hole, the air bubbles generate strong shearing force inclined to the left and right outer sides of the membrane module to the bottom of the hollow fiber membrane wire, and generate impact force inclined to the left and right outer sides of the membrane module to the upper surface 32 of the sealant layer of the lower fixing end 31, so that the pollutants are more easily dropped from the surface of the hollow fiber membrane wire 1 and the upper surface 32 of the sealant layer of the lower fixing end 31, and are removed to the outside of the membrane module under the impact force inclined to the left and right outer sides of the membrane module, and are less likely to be accumulated at the bottom.
3) Because the shearing force of the bubbles blown out from the inclined aeration holes to the hollow fiber membrane wires 1 is inclined upwards, the cleaning force to the hollow fiber membrane wires 1 is larger than that of the vertical upwards shearing force, the pollutants are easier to fall off from the hollow fiber membrane wires 1, and the fallen pollutants are far away from the hollow fiber membrane wires 1, so that the pollution resistance of the membrane component is improved.
4) Because the bubble that the aeration hole of slope explodes produces great slope shearing force to the bottom of hollow fiber membrane silk 1, so hollow fiber membrane silk 1 shake the range than receive vertical ascending shearing force when bigger, the pollutant is changeed and is fallen off from the surface of hollow fiber membrane silk 1, so the clean dynamics of aeration hole to whole hollow fiber membrane silk 1 of slope is bigger.
5) Because the aeration hole is the ellipse of slope, through the inclination of adjustment aeration hole, can adjust the major axis of aeration hole, the minor axis size, thereby under the condition of practicing thrift membrane module area, can obtain the just bubble of exposing that the size is greater than two curtains hollow fiber membrane silk intervals, because the effect of surface tension, the oval bubble of just exposing from oval aeration hole contracts in the major axis direction of aeration hole rapidly, but expand in the minor axis direction, explode rapidly after touching the bottom of hollow fiber membrane silk 1, produce bigger shearing force to the bottom of hollow fiber membrane silk 1, thereby it is bigger to the clean dynamics of hollow fiber membrane silk 1, so the pollution speed of hollow fiber membrane silk 1 is lower, the antipollution of membrane module is higher promptly.
The above embodiments are merely illustrative of the technical concept and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the content of the present invention and implement the invention, and not to limit the scope of the invention, and all equivalent changes or modifications made according to the spirit of the present invention should be covered by the scope of the present invention.
Claims (10)
1. An anti-pollution hollow fiber membrane component, the hollow fiber membrane component includes last fixed end, lower fixed end, aeration house steward, aeration branch pipe, produces water pipe, membrane module joint, and set up respectively go up fixed end with two at least curtain hollow fiber membrane curtains between the fixed end down, two at least curtain hollow fiber membrane curtains parallel arrangement each other, hollow fiber membrane curtain comprises many hollow fiber membrane silk, the upper end of hollow fiber membrane curtain is fixed on going up the fixed end, the lower extreme of hollow fiber membrane curtain is fixed on the fixed end down, the fixed end is including being formed with the lower fixed end shell in holding chamber, filling down the fixed end shell the holding intracavity just is used for fixing the sealed glue film of the lower extreme of hollow fiber membrane curtain, the extending direction of sealed glue film with the length direction of hollow fiber membrane curtain is parallel, the aeration branch pipe is communicated with the aeration main pipe, and the aeration branch pipe is arranged between any two adjacent hollow fiber membrane curtains and is characterized in that:
the upper surface of sealing glue layer is followed high both sides in the middle of the extending direction of sealing glue layer is low, aeration branch pipe includes the edge at least one sub aeration pipe array that the extending direction of sealing glue layer set up, sub aeration pipe array is including inserting respectively and establishing sealed intraformational and the upwards sub aeration pipe that extends, n more than or equal to 3, list in the left and right sides in the sub aeration pipe array the last open-ended up end of sub aeration pipe has first end, the second end relative with first end, first end is close to the middle part of sealing glue layer, the second end is kept away from the middle part of sealing glue layer, first end is higher than the second end.
2. The anti-fouling hollow fiber membrane module of claim 1, wherein: the upper end surface of the upper opening of any one sub-aeration pipe is parallel to the position plane of the upper surface of the sealant layer extending out of the sub-aeration pipe.
3. The anti-fouling hollow fiber membrane module of claim 1, wherein: the upper surface of the sealing glue layer is a continuous curved surface.
4. The anti-fouling hollow fiber membrane module of claim 1, wherein: the bottom inside the accommodating cavity is high in the middle and low on two sides; and/or the upper edge of the accommodating cavity is high in the middle and low in two sides.
5. The anti-fouling hollow fiber membrane module of claim 1, wherein: the hollow fiber membrane module also comprises a smooth membrane layer formed on the upper surface of the sealant layer, and the extending shape of the smooth membrane layer is the same as that of the upper surface of the sealant layer.
6. The anti-fouling hollow fiber membrane module of claim 1, wherein: the upper opening of the sub-aeration pipe is elliptic.
7. The anti-fouling hollow fiber membrane module of claim 1, wherein: in the sub-aeration pipe array, the sizes of the upper openings of the sub-aeration pipes are the same, or the sizes of the upper openings of the sub-aeration pipes gradually decrease or increase from the middle to the left and right sides, wherein the sizes are the lengths of the upper openings or the widths of the upper openings.
8. The anti-fouling hollow fiber membrane module of claim 1, wherein: the cross section of the lower fixing end is circular or rectangular.
9. The anti-fouling hollow fiber membrane module of claim 1, wherein: the hollow fiber membrane curtain is provided with more than three curtains, and the width of the membrane curtain of each curtain of the hollow fiber membrane curtain is the same.
10. The anti-fouling hollow fiber membrane module of claim 1, wherein: the hollow fiber membrane curtain is provided with more than three curtains, and the width of the membrane curtain of each hollow fiber membrane curtain is gradually reduced from the middle to the front side and the rear side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011609647.6A CN112569796A (en) | 2020-12-30 | 2020-12-30 | Anti-pollution hollow fiber membrane component |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011609647.6A CN112569796A (en) | 2020-12-30 | 2020-12-30 | Anti-pollution hollow fiber membrane component |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112569796A true CN112569796A (en) | 2021-03-30 |
Family
ID=75144709
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011609647.6A Pending CN112569796A (en) | 2020-12-30 | 2020-12-30 | Anti-pollution hollow fiber membrane component |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112569796A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114950138A (en) * | 2022-05-18 | 2022-08-30 | 合肥檀泰环保科技有限公司 | Hollow fiber membrane and production equipment thereof |
| CN115203932A (en) * | 2022-07-11 | 2022-10-18 | 浙江津膜环境科技有限公司 | Design method of universal hollow fiber ultrafiltration curtain type membrane component |
-
2020
- 2020-12-30 CN CN202011609647.6A patent/CN112569796A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114950138A (en) * | 2022-05-18 | 2022-08-30 | 合肥檀泰环保科技有限公司 | Hollow fiber membrane and production equipment thereof |
| CN114950138B (en) * | 2022-05-18 | 2023-10-27 | 合肥檀泰环保科技有限公司 | Hollow fiber membrane's sleeve pipe assembly structure |
| CN115203932A (en) * | 2022-07-11 | 2022-10-18 | 浙江津膜环境科技有限公司 | Design method of universal hollow fiber ultrafiltration curtain type membrane component |
| CN115203932B (en) * | 2022-07-11 | 2024-04-16 | 浙江津膜环境科技有限公司 | Design method of universal hollow fiber ultrafiltration curtain type membrane component |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112569796A (en) | Anti-pollution hollow fiber membrane component | |
| US6592759B2 (en) | Gel potting method and method to reduce twinning for filtering hollow fiber membranes | |
| CN102120351B (en) | Casting method for membrane assembly | |
| AU2006335824A1 (en) | Hollow-fiber membrane module | |
| EP3079796A1 (en) | Filter system and vessel for the filter system | |
| EP2030672A2 (en) | Hollow fiber membrane and method for manufacturing the same | |
| WO2016067917A1 (en) | Filter module and filter device | |
| CN113856473B (en) | Oleophylic and hydrophobic hollow fiber membrane module casting process of liquid seal head | |
| CN214159184U (en) | Anti-pollution hollow fiber membrane component | |
| CN101362053B (en) | Hollow fiber membrane filtering assembly | |
| CN202283454U (en) | Columnar beam-splitting pulsation type hollow-fiber membrane element | |
| CN110282731B (en) | MBR membrane module root air inlet structure | |
| JP5599402B2 (en) | Capillary membrane filtration module | |
| RU97100145A (en) | HOLLOW FIBER SECTIONS FOR HOLLOW FIBER MODULES AND METHOD FOR PRODUCING THEM | |
| CN103842056B (en) | Aeration unit and include its defecator | |
| CN214715728U (en) | External pressure type hollow fiber membrane component | |
| TW201701944A (en) | Filtration device | |
| CN108554182A (en) | A kind of external pressure type hollow fiber membrane component | |
| JP2000288365A (en) | Hollow fiber membrane and manufacture thereof | |
| CN201101950Y (en) | Hollow fiber porous membrane filtering component | |
| CN210656327U (en) | Support tubular curtain formula MBR membrane module | |
| CN209685371U (en) | A kind of pillar immersion type membrane component of the center of concatemer type containing segmented aeration | |
| CN208406645U (en) | High-performance ultrafiltration membrane module | |
| US20180028981A1 (en) | Filtration unit | |
| CN220940017U (en) | Anti-pollution hollow fiber membrane component |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |