CN218834128U

CN218834128U - Screw cylinder, membrane assembly and membrane bioreactor for purifying biological feed liquid

Info

Publication number: CN218834128U
Application number: CN202223466164.2U
Authority: CN
Inventors: 张磊; 刘鹏; 张一琛; 李曼晴
Original assignee: Unicore Membrane Science And Technology Tianjin Co ltd
Current assignee: Unicore Membrane Science And Technology Tianjin Co ltd
Priority date: 2022-12-26
Filing date: 2022-12-26
Publication date: 2023-04-11
Anticipated expiration: 2032-12-26

Abstract

The utility model provides a roller for biological feed liquid purification relates to sewage treatment device field, including barrel and baffle, the barrel has produces the liquid mouth, and baffle fixed connection is on the inside wall of barrel, and the baffle sets up with producing the liquid mouth relatively, leaves the clearance between baffle and the production liquid mouth, and leaves the clearance between the inside wall of baffle and barrel, and the baffle can shelter from the part at least and produce the liquid mouth. The utility model provides a membrane module, including casing, membrane silk and two foretell roller section of thick bamboos that are used for biological feed liquid purification, the both ends of casing all with a barrel fixed connection, the membrane silk runs through the barrel of casing one end, the barrel of the casing and the casing other end in proper order, and the both ends of membrane silk keep away from the one end fixed connection of casing with two barrels respectively. The membrane bioreactor provided by the utility model comprises a support frame and at least one membrane component, and each membrane component is fixedly connected on the support frame. The damage of the membrane yarn can be reduced, and the service life of the membrane yarn and the service life of the whole system are prolonged.

Description

Screw cylinder, membrane assembly and membrane bioreactor for purifying biological feed liquid

Technical Field

The utility model relates to the technical field of sewage treatment equipment, in particular to a screw tube, a membrane component and a membrane bioreactor for purifying biological feed liquid.

Background

The membrane bioreactor is a novel water treatment device which is combined by a membrane separation unit and a biological treatment unit. The membrane component mainly comprises a membrane silk component and a supporting structure thereof, and is an important part of the membrane bioreactor. The supporting structure of the column-type membrane component comprises a membrane shell and two rollers arranged at two ends of the membrane shell.

The back washing of the membrane module is to clean the membrane silk module by introducing washing liquid to the liquid production port on Luo Tongce wall, the liquid production port and the membrane silk module of the existing screw tube are not provided with a buffer device capable of slowing down the impact force of the water flow of the back washing liquid, for example, a novel external pressure type elastic polypropylene hollow fiber ultrafiltration membrane column provided by Chinese patent CN201020171899.0, the membrane column shell comprises a shell and screw tubes fixedly connected with the two ends of the shell; wherein the waste liquid inlet and the purified liquid outlet are connected with the seal head in a movable joint mode; the waste liquid circulating reflux port and the backflushing cleaning sewage draining port are connected with the roller in a movable joint mode. The backflushing cleaning drain of this patent does not be provided with the buffer that can slow down backwash liquid rivers impact force before with the hollow fiber membrane silk, and the flush fluid can directly impact on the membrane silk subassembly after getting into the membrane shell by the backflushing cleaning drain, easily leads to the damage of membrane silk subassembly, has reduced the life of membrane subassembly.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a roller, membrane module and membrane bioreactor for biological feed liquid purification to solve the problem that above-mentioned prior art exists, can reduce the damage of membrane silk, prolonged membrane silk and entire system's life.

In order to achieve the above purpose, the utility model provides a following scheme:

the utility model provides a roller for biological feed liquid purification, including barrel and baffle, the barrel has the product liquid mouth, baffle fixed connection in on the inside wall of barrel, just the baffle with produce the relative setting of liquid mouth, the baffle with leave the clearance between the product liquid mouth, just the baffle with leave the clearance between the inside wall of barrel, the baffle can shelter from the part at least produce the liquid mouth.

Preferably, the baffle can completely shield the liquid production port.

Preferably, the inside wall of barrel includes barrel axial first cylindric lateral wall, offset lateral wall and the cylindric lateral wall of second that distributes in proper order and connect, on the offset lateral wall with the one end that the cylindric lateral wall of second is connected is to keeping away from first cylindric lateral wall just is close to the direction slope of the cylindric lateral wall axis of second, the baffle with the offset lateral wall is close to the one end integrated into one piece of the cylindric lateral wall of second.

Preferably, the offset side wall is partially conical, and the conical angle of the conical surface of the offset side wall is 10-60 degrees.

Preferably, the material of the barrel is polysulfone.

The utility model also provides a membrane module, including casing, membrane silk and two foretell roller barrels that are used for the biological feed liquid purification, the both ends of casing all with one barrel fixed connection, the membrane silk runs through in proper order casing one end the barrel the casing with the casing other end the barrel, just the both ends of membrane silk are respectively with two the barrel is kept away from the one end fixed connection of casing.

Preferably, two ends of the membrane yarn are respectively bonded with the two cylinder bodies through glue layers, and liquid in the shell can flow to the liquid production port of the cylinder body from the glue layers in the cylinder body at the lower end of the shell body and is discharged.

Preferably, one end of the baffle close to the shell can extend into the glue layer and is bonded with the cylinder through the glue layer.

The utility model also provides a membrane bioreactor, including support frame and at least one foretell membrane module, each membrane module fixed connection in on the support frame.

The utility model discloses for prior art gain following technological effect:

the utility model provides a roller, membrane module and membrane bioreactor for biological feed liquid purification is provided with the baffle that sets up relatively with producing the liquid mouth, the baffle with leave the clearance between producing the liquid mouth, just the baffle with leave the clearance between the inside wall of barrel, when back flush, the flush fluid can be by producing liquid mouth entering roller to carry out the backwash to membrane modules such as roller, the baffle can shelter from the part at least produce the liquid mouth, the flush fluid flows in by the clearance between baffle and the roller inside wall after blockking of baffle, can not direct impact on the membrane silk, can reduce the damage of membrane silk, has prolonged membrane silk and entire system's life.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments 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 creative efforts.

FIG. 1 is a schematic structural diagram of a roller for purifying biological feed liquid in example 1;

FIG. 2 is a top view of a roller for purification of biological feed liquid in example 1;

FIG. 3 isbase:Sub>A cross-sectional view A-A of FIG. 3;

FIG. 4 is a schematic view of the structure of a membrane module in example 2;

in the figure: 100. a roller for purifying biological feed liquid; 200. a membrane module; 1. a barrel; 101. a liquid production port; 102. a first cylindrical sidewall; 103. an offset sidewall; 104. a second cylindrical side wall; 105. a first edge; 106. a second edge; 2. a baffle plate; 3. a housing; 4. membrane silk; 5. and (6) a glue layer.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.

In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention is described in detail with reference to the accompanying drawings and the detailed description.

Example 1

As shown in fig. 1-3, this embodiment provides a roller tube 100 for purifying biological feed liquid, including a tube body 1 and a baffle 2, the tube body 1 has a liquid production port 101, the baffle 2 is fixedly connected to the inner side wall of the tube body 1, and the baffle 2 is arranged opposite to the liquid production port 101, a gap is left between the baffle 2 and the liquid production port 101, and a gap is left between the baffle 2 and the inner side wall of the tube body 1, during back flushing, flushing liquid can enter the roller tube from the liquid production port 101 to back flush membrane modules such as the roller tube, the baffle 2 can at least shield part of the liquid production port 101, flushing liquid flows in from the gap between the baffle 2 and the inner side wall of the roller tube after being blocked by the baffle 2, and cannot directly impact on membrane wires, so that damage to the membrane wires can be reduced, and the service lives of the membrane wires and the entire system are prolonged. When the baffle 2 shields part of the liquid production port 101, the projection of the baffle 2 on the cross section of the liquid production port 101 is inside the liquid production port 101; when the baffle 2 completely shields the liquid production port 101, the projection of the liquid production port 101 in the plane of the baffle 2 is superposed with the baffle 2 or the projection of the baffle 2 in the plane is positioned inside the outer edge of the baffle 2.

In a preferred embodiment, the baffle 2 can completely block the liquid production port 101, and thus, the washing liquid entering from the liquid production port 101 can be prevented from directly impacting on the membrane filaments without being buffered by the baffle 2 to damage the membrane filaments. As a preferred embodiment, the baffle 2 is arc-shaped, the distance between each position of the inner wall of the baffle 2 close to the liquid production port 101 and the inner side wall of the cylinder 1 is the same, and a gap is reserved between two edges of the baffle 2 perpendicular to the axial direction of the liquid production port 101 and the inner side wall of the cylinder 1.

The inner side wall of the barrel body 1 comprises a first cylindrical side wall 102, an offset side wall 103 and a second cylindrical side wall 104 which are sequentially distributed and connected in the axial direction of the barrel body 1, one end, connected with the second cylindrical side wall 104, of the offset side wall 103 inclines towards the direction far away from the first cylindrical side wall 102 and close to the axis of the second cylindrical side wall 104, and the baffle 2 and one end, close to the second cylindrical side wall 104, of the offset side wall 103 are integrally formed, so that the processing is convenient, and more preferably, the first cylindrical side wall 102, the offset side wall 103, the second cylindrical side wall 104 and the baffle 2 are integrally formed. During the use, the roller 100 that is used for biological feed liquid purification that this application provided sets up in the top of casing, and the slope setting of offset lateral wall 103 is favorable to remaining the liquid on the barrel 1 inner wall to drip along offset lateral wall 103 under the action of gravity to discharge by Fang Luotong down, reduce the remaining liquid in the remaining of the roller inside wall in top, reduce the washing degree of difficulty. The manner of discharging the residual liquid after dropping to the lower portion Fang Luotong is known in the art and will not be described herein.

In a preferred embodiment, the offset sidewall 103 is partially conical, and the conical surface of the offset sidewall 103 has a taper angle of 10 ° to 60 °. In a more preferred embodiment, an edge of the offset sidewall 103 close to the second cylindrical sidewall 104 is a first edge 105, an edge of the second cylindrical sidewall 104 far from the offset sidewall 103 is a second edge 106, and a distance from each point on the first edge 105 to the second edge 106 is gradually reduced from the baffle 2 to a direction far from the baffle 2, that is, it can be ensured that the residual liquid can flow from the part of the offset sidewall 103 where the baffle 2 is located to the part of the offset sidewall 103 far from the baffle 2, and the residual liquid is prevented from remaining at an intersection line position of the baffle 2 and the offset sidewall 103.

In a preferred embodiment, the material of the cylinder 1 is polysulfone. Polysulfone is a wear-resistant and high-strength thermoplastic plastic, can maintain excellent mechanical properties at high temperature, is resistant to hydrolysis, has good dimensional stability and small molding shrinkage, and is non-toxic, so that the roller made of polysulfone has the advantages of high temperature resistance, high pressure resistance and the like.

In a preferred embodiment, the outlet of the cylinder 1 at the end far away from the second cylindrical side wall 104 has an outer diameter of 166.8mm, an inner diameter of 136.5mm, and a glue layer thickness of 25mm-40mm; the outer diameter of the end of the cylinder 1 far away from the first cylindrical side wall 102 is 127mm, and the inner diameter is 119mm. One end of the cylinder 1 close to the second cylindrical side wall 104 is sleeved outside the housing and is connected with the housing in an interference fit manner. A liquid flow cylinder is integrally formed on the side wall of the cylinder body 1 and extends from the outer side wall of the cylinder body 1 to the direction far away from the cylinder body 1, the outer diameter of the liquid flow cylinder is 50mm, the inner diameter of the liquid flow cylinder is 41mm, the extending length of the liquid flow cylinder is 35.9mm, and the liquid flow cylinder is provided with a liquid production port 101 communicated with the cylinder body 1. The distance from the side wall of the baffle plate 2 close to the liquid production port 101 is 13.5mm. The effective filtration area of the membrane filaments is 12.8m ² 。

Example 2

As shown in fig. 4, this embodiment provides a membrane module, including casing, membrane silk and two embodiments 1 used for the roller 100 of biological feed liquid purification, the both ends of casing all with a barrel 1 fixed connection, the membrane silk runs through barrel 1, the casing of casing one end and the barrel 1 of the casing other end in proper order, and the both ends of membrane silk are kept away from the one end fixed connection of casing with two barrels 1 respectively. During back flushing, flushing liquid flows in through the baffle 2 and the gap between the inner side walls of the screw cylinder after being blocked by the baffle 2, and cannot directly impact on membrane wires, so that the damage to the membrane wires can be reduced, and the service lives of the membrane wires and the whole system are prolonged.

The both ends of membrane silk pass through the glue film with two barrel 1 bonds respectively, and the liquid in the casing can flow to the liquid production mouth 101 of barrel 1 and discharge by the glue film in the barrel 1 of casing lower extreme. The glue layer in the cylinder 1 at the lower end of the shell is a lower glue layer, the lower glue layer is an inclined plane inclined towards one side of the lower end liquid production port 101, the part, close to the lower end liquid production port 101, of the upper surface of the lower glue layer is located between the lowest point and the highest point of the liquid production port 101, and the height, far away from the lower end liquid production port 101, of one side of the upper surface of the lower glue layer is higher than the height, close to the lower end liquid production port 101, of the upper surface of the lower glue layer. In order to ensure the maximum liquid outlet amount, the height of the upper surface of the lower rubber layer close to the lower liquid production port 101 is the same as the height of the lowest point of the liquid production port 101. The residual liquid is dripped to the upper surface of the lower glue layer from the upper end of the membrane component under the action of gravity and is discharged from a lower liquid production port 101.

One end of the baffle 2, which is far away from the shell, can extend into the glue layer and is bonded with the cylinder body 1 through the glue layer. The upper end and the lower end of the baffle 2 are fixed, which is favorable for improving the installation stability of the baffle 2.

Example 3

This embodiment provides a membrane bioreactor, including support frame and at least one membrane module in embodiment 2, each membrane module fixed connection can reduce the damage of membrane silk on the support frame, has prolonged the life of membrane silk and entire system.

The principle and the implementation mode of the utility model are explained by applying a specific embodiment, and the explanation of the embodiment is only used for helping to understand the method and the core idea of the utility model; meanwhile, for the general technical personnel in the field, according to the idea of the present invention, there are changes in the concrete implementation and the application scope. In summary, the content of the present specification should not be construed as a limitation of the present invention.

Claims

1. A roller for purifying biological feed liquid is characterized in that: including barrel and baffle, the barrel has the product liquid mouth, baffle fixed connection in on the inside wall of barrel, just the baffle with produce the relative setting of liquid mouth, the baffle with leave the clearance between the product liquid mouth, just the baffle with leave the clearance between the inside wall of barrel, the baffle can shelter from the part at least produce the liquid mouth.

2. The screw cylinder for purification of biological feed liquid according to claim 1, characterized in that: the baffle can completely shield the liquid production port.

3. The screw cylinder for purification of biological feed liquid according to claim 1, characterized in that: the inside wall of barrel includes first cylindric lateral wall, offset lateral wall and the cylindric lateral wall of second that the barrel axial distributes in proper order and connect, on the offset lateral wall with the one end that the cylindric lateral wall of second is connected is to keeping away from first cylindric lateral wall just is close to the direction slope of second cylindric lateral wall axis, the baffle with the offset lateral wall is close to the one end integrated into one piece of second cylindric lateral wall.

4. The screw for purification of biological feed liquid according to claim 3, characterized in that: the offset side wall is partially conical, and the conical angle of the conical surface where the offset side wall is located is 10-60 degrees.

5. The screw cylinder for purification of biological feed liquid according to claim 1, characterized in that: the barrel is made of polysulfone.

6. A membrane module, characterized by: the screw cylinder for purifying biological feed liquid comprises a shell, membrane wires and two screw cylinders according to any one of claims 1 to 5, wherein two ends of the shell are fixedly connected with one cylinder, the membrane wires sequentially penetrate through the cylinder at one end of the shell, the shell and the cylinder at the other end of the shell, and two ends of the membrane wires are respectively fixedly connected with two cylinders far away from one end of the shell.

7. The membrane module of claim 6, wherein: the two ends of the membrane filaments are respectively bonded with the two cylinders through glue layers, and liquid in the shell can flow to the liquid production port of the cylinder from the glue layers in the cylinders at the lower ends of the shell and is discharged.

8. The membrane module of claim 7, wherein: one end of the baffle, which is close to the shell and is far away from the shell, can extend into the glue layer and is bonded with the cylinder through the glue layer.

9. A membrane bioreactor, comprising: comprising a support frame and at least one membrane module according to any one of claims 6-8, each membrane module being fixedly attached to the support frame.