CN214598298U

CN214598298U - Baffling formula book formula membrane element

Info

Publication number: CN214598298U
Application number: CN202022953678.5U
Authority: CN
Inventors: 张宇峰; 刘浩; 李佩凝; 侯斌
Original assignee: Tianjin Chengjian University
Current assignee: Tianjin Chengjian University
Priority date: 2020-12-08
Filing date: 2020-12-08
Publication date: 2021-11-05
Anticipated expiration: 2030-12-08

Abstract

The utility model relates to a formula of baffling book film element, including the center tube, center tube one end is opened there is the pure water export, it has first sleeve pipe to bond in the center tube, the second sleeve pipe, first sleeve pipe one end is equipped with the raw water entry, the one end of second sleeve pipe is equipped with dense water export, the first sleeve pipe is equipped with a plurality of former water circulation mouth with the junction of center tube, the second sleeve pipe is equipped with a plurality of dense water circulation mouth with the junction of center tube, be equipped with a plurality of pure water circulation mouths on the center tube lateral wall, center tube outer wall interval is around being equipped with raw water diversion net, pure water diversion net, the filtration diaphragm, raw water diversion net, pure water diversion net, the filtration diaphragm is convoluteed the back outside of accomplishing and is equipped with the parcel sealing layer, first sleeve pipe, the outside the isolation terminal surface of second sleeve pipe is equipped with the separation sealing strip, the separation sealing strip divide into the passageway of two intercommunications with the circulation passageway outside the center tube, raw water diversion net, pure water diversion net, the net of diversion net, the net of filtration diaphragm is divided into two passageways of two passageways that are divided into, End face sealing rubber covers are arranged on two end faces of the filtering membrane. The utility model discloses the raw water runner has been prolonged.

Description

Baffling formula book formula membrane element

Technical Field

The utility model relates to a water purification unit's technical field especially relates to a formula of baffling book formula film element.

Background

The spiral-wound membrane element is widely applied to the membrane application market by the advantages of compact structure, large effective membrane area in unit volume, relatively simple manufacturing process, convenient use and operation and the like. The roll-type membrane element is generally formed by winding a water purification membrane group formed by superposing materials such as a water inlet flow guide net, a flat membrane, a water production flow guide net, a resin adhesive and the like in a certain mode on a central water production pipe, and wrapping and sealing the outer surface of the central water production pipe by using materials such as an outer adhesive tape or glass fiber reinforced plastics and the like.

At present, in the operation process of a known roll-type reverse osmosis or nanofiltration membrane element, raw water enters from one end and exits from the other end, the flow channel area of the raw water is kept unchanged, the water flow speed and the pressure are gradually reduced, the concentration polarization phenomenon on the surface of the membrane and the membrane flux are reduced, and the water yield of a single membrane element is usually not higher than 15%.

Disclosure of Invention

The utility model aims to solve the defects of the prior art and provides a baffling type roll-type membrane element.

The utility model discloses a realize above-mentioned purpose, adopt following technical scheme:

the utility model provides a formula of baffling book film element, includes the center tube, center tube one end seals and other one end opening, the open end of center tube is the pure water outlet, be equipped with central sleeve pipe in the center tube, central sleeve pipe divide into first sleeve pipe, the second sleeve pipe of mutual isolation, first sleeve pipe one end is equipped with the raw water entry, the open end of center tube is worn out to the raw water entry, the sheathed tube one end of second is equipped with dense water outlet, the blind end of center tube is worn out to dense water outlet, central sleeve pipe bonds on the inner wall of center tube, the bonding department of first sleeve pipe and center tube is equipped with a plurality of former rivers opening, the bonding department of second sleeve pipe and center tube is equipped with a plurality of thick rivers opening, be equipped with a plurality of pure rivers opening in the relative one side of former rivers opening on the center tube lateral wall, on former water center tube outer wall at the circulation opening, One side of the concentrated water flow port is bonded with a raw water diversion net, one side of the pure water flow port is bonded with a pure water diversion net on the outer wall of the central tube, the bonding parts of the raw water diversion net and the pure water diversion net are oppositely arranged, the raw water diversion net is externally provided with a layer of filtering membrane, the pure water diversion net is also externally provided with a layer of filtering membrane, the raw water diversion net, the filtering membrane, the pure water diversion net and the filtering membrane are sequentially wound outside the central tube from inside to outside at intervals, the outer side of the wound raw water diversion net, the filtering membrane, the pure water diversion net and the filtering membrane is provided with a wrapping sealing layer, the isolation end surfaces of the first sleeve and the second sleeve are externally provided with separation sealing strips, the separation sealing strips divide the flow channel outside the central tube into a first channel communicated with the first sleeve and a second channel communicated with the second sleeve, the first channel and the second channel are communicated with each other, the raw water diversion net, the filtering membrane, the pure water diversion net and the filtering membrane are provided with end face sealing rubber covers at two end faces.

The baffling type raw water flow passage formed by the membrane elements is gradually narrowed.

The length ratio of the first sleeve to the second sleeve is 3:1-30: 1.

The outwardly extending ends of the separation sealing bands are at 1/2 the length of the central tube.

The raw water diversion net and the pure water diversion net are of grid sheet structures.

The diameters of the raw water circulation port, the concentrated water circulation port and the pure water circulation port are the same.

The wrapping sealing layer is an adhesive tape sealing layer or a glass fiber reinforced plastic sealing layer.

The utility model has the advantages that: the utility model discloses a two terminal surfaces of membrane element are sealed through end face seal gum lid, and it is intake from book formula membrane element length direction upper center, set up the sealing strip on the diaphragm and form baffling formula raw water runner, compare with traditional book formula membrane module and greatly prolonged the raw water runner.

Drawings

FIG. 1 is a schematic view of the present invention when it is deployed;

FIG. 2 is a schematic winding diagram of a raw water diversion net, a filter membrane, a pure water diversion net and a filter membrane outside a central tube;

FIG. 3 is a schematic view of the flow path of the present invention when it is deployed;

in the figure: 1-a central tube; 2-a pure water outlet; 3-a central sleeve; 4-a first sleeve; 5-a second sleeve; 6-raw water inlet; 7-a concentrated water outlet; 8-raw water flow port; 9-concentrated water flow opening; 10-pure water flow port; 11-raw water diversion net; 12-a pure water diversion net; 13-a filter membrane; 14-a separation sealing band;

the following detailed description will be made in conjunction with embodiments of the present invention with reference to the accompanying drawings.

Detailed Description

The invention will be further explained with reference to the following figures and examples:

as shown in fig. 1 to 3, a baffling formula book formula membrane element, including center tube 1, center tube 1 one end is sealed and other one end opening, the open end of center tube 1 is pure water outlet 2, be equipped with central sleeve pipe 3 in the center tube 1, central sleeve pipe 3 divides into first sleeve pipe 4, second sleeve pipe 5 of mutual isolation, first sleeve pipe 4 one end is equipped with raw water entry 6, raw water entry 6 wears out the open end of center tube 1, the one end of second sleeve pipe 5 is equipped with dense water export 7, dense water export 7 wears out the blind end of center tube 1, central sleeve pipe 3 bonds on the inner wall of center tube 1, the bonding department of first sleeve pipe 4 and center tube 1 is equipped with a plurality of former rivers opening 8, the bonding department of second sleeve pipe 5 and raw water 1 is equipped with a plurality of dense rivers opening 9, on the center tube 1 lateral wall at circulation opening 8, One side that concentrated rivers opening 9 is relative is equipped with a plurality of pure rivers opening 10, it has raw water conduction net 11 to bond in one side of raw rivers opening 8, concentrated rivers opening 9 on the outer wall of center tube 1, it has pure water conduction net 12 to bond in one side of pure water circulation opening 10 on the outer wall of center tube 1, the bonding department of raw water conduction net 11, pure water conduction net 12 sets up relatively, raw water conduction net 11 is equipped with one deck filtering diaphragm 13 outward, pure water conduction net 12 is also equipped with one deck filtering diaphragm 13 outward, raw water conduction net 11, filtering diaphragm 13, pure water conduction net 12, filtering diaphragm 13 are from inside to outside interval winding in proper order outside center tube 1, raw water conduction net 11, filtering diaphragm 13, pure water conduction net 12, filtering diaphragm 13 are convoluteed and are accomplished the back outside and are equipped with the parcel sealing layer, first sleeve 4, second sleeve 5's isolation terminal surface is equipped with separation sealing strip 14 to the outside, the separation sealing strip 14 divides a flow channel outside the central tube 1 into a first channel communicated with the first sleeve 4 and a second channel communicated with the second sleeve 5, the first channel and the second channel are communicated, and end face sealing rubber covers are arranged on two end faces of the raw water diversion net 11, the filtering membrane 13, the pure water diversion net 12 and the filtering membrane 13.

The length ratio of the first sleeve 4 to the second sleeve 5 is 3:1-30: 1.

The outwardly extending end of the separation sealing band 14 is at 1/2 of the length of the central tube 1.

The raw water diversion net 11 and the pure water diversion net 12 are of a grid sheet structure.

The diameters of the raw water circulation port 8, the concentrated water circulation port 9 and the pure water circulation port 10 are the same.

The utility model discloses the during operation, the raw water flows in through raw water circulation mouth 8 and flows into the raw water runner from raw water entry 6 of first sleeve pipe 4, flows to and gets into another part passageway and retraces after the filtering membrane 13 outside, and the back gets into second sleeve pipe 5 through dense rivers opening 9 and flows out, and the pure water sees through filtering membrane 13 and flows in by pure water export 2 behind the center tube 1 through pure water guide net 12.

The utility model discloses a two terminal surfaces of membrane element are sealed through end face seal gum cover, and it is intake from book formula membrane element length direction upper center, set up sealing strip 14 and form baffling formula raw water runner on the diaphragm, compare with traditional book formula membrane module and greatly prolonged the raw water runner to the raw water runner narrows down gradually, with the velocity of flow and pressure of keeping, thereby avoid concentration polarization and keep the membrane flux, improved membrane element life.

The present invention has been described above with reference to the accompanying drawings, and it is obvious that the present invention is not limited by the above embodiments, and various improvements made by the method concept and technical solution of the present invention or directly applied to other occasions without improvement are all within the protection scope of the present invention.

Claims

1. The utility model provides a formula of book film element of baffling, its characterized in that, includes center tube (1), center tube (1) one end is sealed and one end opening in addition, the open end of center tube (1) is pure water outlet (2), be equipped with central sleeve pipe (3) in center tube (1), central sleeve pipe (3) divide into first sleeve pipe (4), second sleeve pipe (5) of mutual isolation, first sleeve pipe (4) one end is equipped with raw water entry (6), the open end of center tube (1) is worn out in raw water entry (6), the one end of second sleeve pipe (5) is equipped with dense water outlet (7), the blind end of center tube (1) is worn out in dense water outlet (7), center sleeve pipe (3) bonds on the inner wall of center tube (1), the bonding department of first sleeve pipe (4) and center tube (1) is equipped with a plurality of former rivers opening (8), second sleeve pipe (5) are equipped with a plurality of thick rivers opening (9) with the bonding department of center tube (1), be equipped with a plurality of pure rivers opening (10) in the relative one side of former rivers opening (8), thick rivers opening (9) on the center tube (1) lateral wall, it has former water conductance net (11) to bond in one side of former rivers opening (8), thick rivers opening (9) on center tube (1) outer wall, it has pure water conductance net (12) to bond in one side of pure water circulation opening (10) on center tube (1) outer wall, the bonding department of former water conductance net (11), pure water conductance net (12) sets up relatively, former water conductance net (11) are equipped with one deck filtering diaphragm (13) outward, pure water conductance net (12) outward also are equipped with one deck filtering diaphragm (13), conductance net (11), filtering diaphragm (13), pure water conductance net (12), Filter membrane (13) and coil outside center tube (1) from inside to outside in proper order the interval, raw water drainage net (11), filter membrane (13), pure water drainage net (12), filter membrane (13) are convoluteed and are accomplished the back outside and are equipped with the parcel sealing layer, the isolation terminal surface of first sleeve pipe (4), second sleeve pipe (5) is equipped with to the outside and separates sealing strip (14), separate sealing strip (14) divide into the first passageway with first sleeve pipe (4) intercommunication with the outer circulation passageway of center tube (1), the second passageway with second sleeve pipe (5) intercommunication, first passageway, second passageway are linked together, raw water drainage net (11), filter membrane (13), pure water drainage net (12), filter membrane (13) both ends face are equipped with the end face seal gum cover.

2. The baffled roll-type membrane element according to claim 1, wherein the baffled raw water flow channel formed by the membrane element is gradually narrowed.

3. A baffled spiral membrane element according to claim 2, characterized in that the length ratio of the first thimble (4) and the second thimble (5) is 3:1-30: 1.

4. A baffled roll-type membrane element according to claim 3, characterized in that the outwardly extending end of the separation sealing strip (14) is at 1/2 of the length of the central tube (1).

5. A baffled roll-type membrane element according to claim 4, characterized in that the raw water diversion net (11) and the pure water diversion net (12) are of a grid sheet structure.

6. A baffled spiral membrane element according to claim 5, characterized in that the diameters of the raw water flow port (8), the concentrated water flow port (9) and the pure water flow port (10) are the same.

7. The baffled roll-type membrane element of claim 6, wherein the wrap seal layer is a tape seal layer or a glass fiber reinforced plastic seal layer.