CN213803035U

CN213803035U - Filtering membrane assembly with long service life

Info

Publication number: CN213803035U
Application number: CN202020977176.3U
Authority: CN
Inventors: 顾翀翀; 陈莲; 沈慧峰; 李元康; 季久艺
Original assignee: Zhejiang Think Energy Technology Co ltd
Current assignee: Zhejiang Think Energy Technology Co ltd
Priority date: 2020-06-02
Filing date: 2020-06-02
Publication date: 2021-07-27
Anticipated expiration: 2030-06-02

Abstract

A filtering membrane component with long service life comprises a container body with a containing cavity, an upper end cover and a lower end cover which are respectively arranged at two ends of the container body, a purified liquid outlet arranged at one side of the upper end cover and the lower end cover, a concentrated liquid outlet arranged at the end part of the upper end cover, a stock solution inlet arranged at the end part of the lower end cover, a central tube arranged in the container body, and a hollow fiber filtering membrane arranged between the inner wall of the container body and the outer wall of the central tube, the stock solution inlet and the concentrated solution outlet are respectively connected with two ends of the central pipe through joints, and the hydraulic buffer device also comprises a plurality of hydraulic buffer mechanisms arranged along the inner wall of the central pipe, the water pressure buffer mechanism is arranged in the central tube, and the water pressure buffer mechanism is communicated with the water pressure buffer chamber through a water discharge hole penetrating through the inner wall of the central tube. The utility model discloses the filter effect is good, has improved hollow fiber filtration membrane's life.

Description

Filtering membrane assembly with long service life

Technical Field

The utility model relates to a water treatment facilities technical field, especially a long service life's filtration membrane module.

Background

In recent years, membrane separation technology has been rapidly developed as a highly efficient separation, concentration, purification and purification technology. With the continuous maturity of membrane separation technology and its matching technology, the application of membrane separation in the field of sewage treatment is also more and more extensive, and the membrane separation has become the core technology of municipal sewage and industrial wastewater treatment internationally. The hollow fiber membrane prepared by the thermally induced phase separation method has the advantages of uniform structure, high mechanical strength, good interception performance, high water flux, environmental friendliness and the like, and has wider application field and market prospect. The hollow fiber filtering membrane component of the existing water treatment device disclosed in patent number CN201592060U comprises a hollow fiber filtering membrane, a central tube and a shell, wherein the hollow fiber filtering membrane is wrapped in the shell, the central tube is provided with branches communicated with the central tube, and the central tube and the branches are provided with water holes. The utility model enables the liquid to be filtered to be uniformly distributed and collected in the component, fully improves the characteristics of high filling density and large effective filtering area of the hollow fiber filtering membrane component, and greatly improves the filtering efficiency and the water production quality; the problems of small water yield, poor cleaning effect and the like of the conventional ultrafiltration component are effectively solved, and liquid flows at all positions in the working process without dead zones; the utility model discloses the water yield is big, and the cleaning performance is good, and the equipment is convenient. However, the device has unstable pressure at the moment when the stock solution enters, the impact on the fiber membrane is large, and impurities in the stock solution filtered by the fiber membrane are too concentrated, so that the filtering effect of the fiber membrane is poor.

Disclosure of Invention

The utility model aims at providing a long service life's filtration membrane module, the utility model provides a current water treatment facilities pressure instability in the twinkling of an eye that the stoste got into, it is big to the impact of fibre membrane, and the stoste is too concentrated through the impurity after the fibre membrane filters and is leaded to the not good problem of fibre membrane filter effect.

The technical solution of the utility model is that: a filtering membrane component with long service life comprises a container body with a containing cavity, an upper end cover and a lower end cover which are respectively arranged at two ends of the container body, a purified liquid outlet arranged at one side of the upper end cover and the lower end cover, a concentrated liquid outlet arranged at the end part of the upper end cover, a stock solution inlet arranged at the end part of the lower end cover, a central tube arranged in the container body, and a hollow fiber filtering membrane arranged between the inner wall of the container body and the outer wall of the central tube, the stock solution inlet and the concentrated solution outlet are respectively connected with two ends of the central pipe through joints, and the hydraulic buffer device also comprises a plurality of hydraulic buffer mechanisms arranged along the inner wall of the central pipe, the water pressure buffer mechanism is arranged in the central tube, and the water pressure buffer mechanism is communicated with the water pressure buffer chamber through a water discharge hole penetrating through the inner wall of the central tube.

As preferred, water pressure buffer gear include the rigid coupling be in the center tube inner wall and through the guiding hole with the casing of cushion chamber intercommunication, establish installation cavity in the casing, establish the casing towards stoste import one side and with the entry of installation cavity intercommunication, establish rotatory buffering portion in the installation cavity, the entry with eccentricity H has between the installation cavity.

As preferred, rotatory buffering portion is established including establishing reference column, the cover in the installation cavity are established rotatory cover on the reference column, fix rotatory cover is close to the first circular arc board of guiding hole one end, fix rotatory cover is kept away from the second circular arc board of guiding hole one end, with picture peg that the second circular arc board is connected and establishing on the installation cavity lateral wall with picture peg complex annular, first circular arc board with form the water conservancy diversion passageway between the installation cavity lateral wall.

Preferably, a plurality of stirring rods are arranged at one end, close to the guide hole, of the positioning column.

Preferably, the surface of the shell facing the stock solution inlet is provided with an arc-shaped recess.

Preferably, the aperture of the inlet is 1/3-1/2 of the diameter of the central tube.

Preferably, axial projections of adjacent hydraulic buffer mechanisms are perpendicular to each other

The utility model has the advantages that:

compared with the prior art, the utility model discloses a set up water pressure buffer gear, make the stoste strike the swivel mount through the entry after, buffering stoste gets into the impact force in the twinkling of an eye of center tube, reduce the impact to hollow fiber filtration membrane, the thrust that produces after the stoste strikes the swivel mount simultaneously drives the reference column rotatory, with stoste rapid mixing even, make the impurity relative dispersion after the stoste filtration that gets into hollow fiber filtration membrane, it is not good to avoid the hollow fiber filtration membrane filter effect that the impurity after the hollow fiber filtration membrane filters too concentrates the lead to, improve the life of hollow fiber filtration membrane.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is an enlarged schematic view of the utility model at A;

FIG. 3 is a bottom view of the interior of the center tube;

Detailed Description

The present invention will be further described with reference to the following embodiments in conjunction with the accompanying drawings.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment without inventive contribution as required after reading the present specification, but all of them are protected by patent laws within the scope of the claims of the present invention.

In the embodiment, as shown in fig. 1 to 3, a filtering membrane module with a long service life includes a container body 1 having a containing cavity 101, an upper end cap 2 and a lower end cap 3 respectively disposed at two ends of the container body 1, a purified liquid outlet 4 disposed at one side of the upper end cap 2 and the lower end cap 3, a concentrated liquid outlet 201 disposed at an end of the upper end cap 2, a raw liquid inlet 301 disposed at an end of the lower end cap 3, a central tube 5 disposed in the container body 1, a hollow fiber filtering membrane 7 disposed between an inner wall of the container body 1 and an outer wall of the central tube 5, wherein the raw liquid inlet 301 and the concentrated liquid outlet 201 are respectively connected to two ends of the central tube 5 through a joint 6, and further includes a plurality of hydraulic buffer mechanisms 8 disposed along an inner wall of the central tube 5, a buffer cavity 501 communicated with the hydraulic buffer mechanisms 8 is axially disposed inside the central tube 5, the buffer cavity 501 is communicated with the containing cavity 101 through a water drainage hole 502 penetrating through the inner wall of the central tube 5, and two ends of the central tube 5 and two ends of the hollow fiber filtering membrane 7 are hermetically fixed in the container body 1 through epoxy resin sealing ends 9.

Further, as shown in fig. 2 and 3, the hydraulic buffer mechanism 8 includes a housing 801 fixedly connected to the inner wall of the central tube 5 and communicated with the buffer cavity 501 through a guide hole 805, an installation cavity 802 provided in the housing 801, an inlet 803 provided on a surface of the housing 801 facing the raw liquid inlet 301 and communicated with the installation cavity 802, and a rotary buffer portion 804 provided in the installation cavity 802, wherein an eccentricity H is provided between the inlet 803 and the installation cavity 802, and the eccentricity H is determined according to actual conditions, so that the raw liquid is buffered by the rotary buffer portion 804 and then kept stable in pressure, enters the buffer cavity 501 through the guide hole 805 for temporary storage, and finally enters the accommodating cavity 101 through the guide hole 502, and the pressure of the raw liquid at this time is stable, and the instantaneous impact force on the hollow fiber filtering membrane 7 is small, thereby prolonging the service life of the hollow fiber filtering membrane 7.

Further, the rotary buffering part 804 includes a positioning column 8041 arranged in the installation cavity 802, a rotary sleeve 8042 sleeved on the positioning column 8041, a first circular arc plate 8043 fixed at one end of the guide hole 805 close to the rotary sleeve 8042, a second circular arc plate 8044 fixed at one end of the rotary sleeve 8042 far away from the guide hole 805, an insert plate 8045 connected with the second circular arc plate 8044, and an annular groove 8046 arranged on the side wall of the installation cavity 802 and matched with the insert plate 8045, wherein the first circular arc plate 8043 and the installation cavity 802 form a flow guide channel 8047 between the side walls, preferably, the rotary sleeve 8042 is fixedly connected with the positioning column 8041, the positioning column 8041 is rotatably connected with the inner wall of the installation cavity 802, the insert plate 8045 is matched with the annular groove 8046 to realize sealing, so as to prevent the stock solution from overflowing from the lower side, ensure that the stock solution passes through the flow guide channel 8047, the incoming stock solution impacts on the rotary sleeve 8042 and passes through the first circular arc plate 8043 upwards, the liquid flows out through the diversion channel 8047, so that the stability of the pressure of the stock solution is ensured; stock solution strikes swivel housing 8042 through entry 803, buffering stock solution gets into the impact force in the twinkling of an eye of center tube 5, reduce the impact to hollow fiber filtration membrane 7, the thrust that produces after stock solution strikes swivel housing 8042 simultaneously drives reference column 8041 rotatory, stir stock solution rapid mixing is even, make the relative dispersion of impurity after the stock solution filtration that gets into hollow fiber filtration membrane 7, it is not good to avoid hollow fiber filtration membrane 7 filter effect that the impurity that hollow fiber filtration membrane 7 filtered leads to too concentrating, improve hollow fiber filtration membrane 7's life.

Further, a plurality of stirring rods 8048 are arranged at one end of the positioning column 8041 close to the guide hole 805, the stirring rods 8048 are divided into three rows of five, and the length of each row is gradually increased along with the distance from the rotating sleeve 8042.

Further, the housing 801 has an arc-shaped recess 8011 on the side facing the raw liquid inlet 301, so that the raw liquid can be quickly guided to the inlet 803 and enter the installation cavity 802.

Preferably, the aperture of the inlet 803 is 1/3-1/2 of the pipe diameter of the central pipe 5, so that the arrangement ensures that stock solution can rapidly enter the water pressure buffering mechanism 8, and the water production efficiency is improved.

Preferably, axial projections of adjacent hydraulic buffer mechanisms 8 are perpendicular to each other, and when the stock solution passes through the previous hydraulic buffer mechanism 8 and enters the next hydraulic buffer mechanism 8, due to the arrangement that axial projections of adjacent hydraulic buffer mechanisms 8 are perpendicular to each other, the stock solution is blocked by the housing 801 and quickly enters the installation cavity 802 through the inlet 803, and meanwhile, the instant impact force of the stock solution entering the central tube 5 is reduced.

Claims

1. The utility model provides a long service life's filtration membrane subassembly, includes container body (1) that has holding chamber (101), sets up separately upper end cover (2) and lower cover (3) at container body (1) both ends are established upper end cover (2) and net liquid export (4) of lower cover (3) one side establish dense liquid export (201) of upper end cover (2) tip, establish the stoste import (301) of lower cover (3) tip, establish center tube (5) in container body (1), establish container body (1) inner wall with hollow fiber filtration membrane (7) between center tube (5) outer wall, stoste import (301) with dense liquid export (201) respectively through joint (6) with the both ends of center tube (5) link to each other, its characterized in that: still include a plurality of edges center tube (5) inner wall is provided with water pressure buffer gear (8), center tube (5) inside along the axial be equipped with buffer chamber (501) of water pressure buffer gear (8) intercommunication, buffer chamber (501) with hold between the chamber (101) through running through wash port (502) intercommunication of center tube (5) inner wall.

2. A long-life filtration membrane module according to claim 1, wherein: water pressure buffer gear (8) are including the rigid coupling center tube (5) inner wall and through guiding hole (805) with casing (801) of cushion chamber (501) intercommunication, establish installation cavity (802) in casing (801), establish casing (801) towards stoste import (301) one side and with entry (803) of installation cavity (802) intercommunication, establish rotatory buffering portion (804) in installation cavity (802), entry (803) with eccentricity apart from H has between installation cavity (802).

3. A long-life filtration membrane module according to claim 2, wherein: rotatory buffering portion (804) is including establishing reference column (8041), cover in installation cavity (802) are established rotatory cover (8042) on reference column (8041), fix rotatory cover (8042) are close to first circular arc board (8043) of guiding hole (805) one end, fix rotatory cover (8042) are kept away from second circular arc board (8044) of guiding hole (805) one end, and picture peg (8045) and establishing that second circular arc board (8044) are connected on installation cavity (802) lateral wall with picture peg (8045) complex annular (8046), first circular arc board (8043) with form water conservancy diversion passageway (8047) between installation cavity (802) lateral wall.

4. A long-life filtration membrane module according to claim 3, wherein: and a plurality of stirring rods (8048) are arranged at one end of the positioning column (8041) close to the guide hole (805).

5. A long-life filtration membrane module according to claim 2, wherein: the surface of the shell (801) facing the stock solution inlet (301) is provided with an arc-shaped recess (8011).

6. A long-life filtration membrane module according to claim 2, wherein: the aperture of the inlet (803) is 1/3-1/2 of the pipe diameter of the central pipe (5).

7. A long-life filtration membrane module according to claim 1, wherein: the axial projections of the adjacent water pressure buffer mechanisms (8) are mutually vertical.