CN2067182U - Plate ultrafilter with side split flow film chamber - Google Patents

Abstract

The utility model discloses a plate ultrafilter with a side split flow film chamber, relating to a flat plate ultrafilter which utilizes the ultrafiltration membrane to make the big molecule substance and the small molecule substance in the solution separated. The ultrafiltration membrane and a spacer plate are alternately folded into a membrane stack, and an upper and a lower clamping plates are overlapped to form the plate ultrafilter with the side split flow film chamber. The spacer plate comprises an upper press plate, a lower press plate and a middle separating plate, the middle separating plate is positioned between the upper and the lower press plates, and the middle part of the spacer plate is a solid plate. So a thick membrane chamber is split into two film chambers, the thickness of the membrane chamber is obviously reduced, and the feed solution in the membrane chamber easily achieves turbulent flow. The hydraulic property of the utility model is good, and the concentration polarization phenomenon can be effectively prevented to occur. The membrane stack is level and is not deformed, and the plate ultrafilter with the side split flow film chamber can be widely used in each industry.

Description

Plate ultrafilter with side split flow film chamber

The utility model relates to a kind of flat ultrafilter that utilizes the ultrafilter film that the macromolecular substances in the solution is separated with small-molecule substance.

A kind of ultrafiltration apparatus that ultrafilter is made up of by certain mode milipore filter and other parts, by its structure come to divide have multiple patterns such as flat ultrafilter, roll type ultrafilter, flat ultrafilter be wherein structure comparatively simple, use comparatively general a kind of ultrafilter.Flat ultrafilter is to be superimposed into membrane stack with dividing plate according to certain rules and to be adopted upper and lower clamping plate to clamp by the milipore filter more than 2 to be overrided to form, space between adjacent two milipore filters is called the film chamber, dividing plate has the branch of weather board and water collecting plate, the film chamber at weather board place is water guide film chamber, and the film chamber at water collecting plate place is for receiving the moisture film chamber.Milipore filter and dividing plate and last lower plate are rectangle, and size is identical, and the two ends of milipore filter and dividing plate evenly have the cloth gully-hole, have the stoste hole, dope hole and the clear liquid hole that are communicated with the cloth gully-hole at membrane stack two ends respectively on the last lower plate.Stoste enters each water guide film chamber through the stoste hole by the cloth gully-hole and the cloth gallery of membrane stack one end, wherein a part sees through milipore filter and enters and receive the moisture film chamber and become clear liquid and discharged through the clear liquid hole by each cloth gallery and cloth gully-hole of receiving two ends, moisture film chamber, and remainder is dope and is discharged through the dope hole by the cloth gallery and the cloth gully-hole of each water guide film chamber other end.Dividing plate of the prior art comprises top board, lower platen and middle minute plate, make by polypropylene material, its middle part is netted, and plate two ends cloth gully-hole intersection had the cloth gallery in middle minute, and the mutual stereo staggered of cloth gallery of the cloth gallery of weather board and water collecting plate.Because middle minute plate is netted, so the gross thickness of the as many as dividing plate of thickness of film chamber, this thickness generally all is more than the 1mm.In thick like this film chamber, feed liquid is difficult to obtain turbulence effects preferably, and therefore the hydraulic performance of the dull and stereotyped ultrafilter of this structure is not really desirable.In addition, owing to divide the mechanical strength of plate relatively poor in cancellated, the formation membrane stack subsides or protrudes easily.

Order of the present utility model is the dull and stereotyped ultrafilter in design a kind of film chamber, so that improve its hydraulic characteristic effectively, and significantly improves the mechanical strength of dividing plate, prevents that membrane stack from subsiding or protrude.

To achieve these goals, it is solid middle branch plate that the utility model changes the cancellated middle plate that divides, thereby the thick film chamber is divided into two film chambers, has improved the hydraulic characteristic of ultrafilter effectively; Simultaneously, divide in solid the mechanical strength of plate to be significantly higher than and divides plate in the network structure, can prevent effectively that membrane stack from subsiding or protrude.Be described in further detail below in conjunction with the technical characterictic of specific embodiment the dull and stereotyped ultrafilter in the utility model side shunting film chamber.

Accompanying drawing 1 is the structural representation of the dull and stereotyped ultrafilter in side shunting film chamber;

Accompanying drawing 2 is the structural representation of weather board;

Accompanying drawing 3 is the structural representation of water collecting plate;

With reference to the accompanying drawings 1,2,3, the dull and stereotyped ultrafilter in the utility model side shunting film chamber is to be superimposed into membrane stack and to be adopted train wheel bridge 4 and lower plate 5 is overrided to form by weather board 1, milipore filter 2 and water collecting plate 3.The milipore filter formation water guide film chamber of weather board and both sides thereof, the milipore filter of water collecting plate and both sides thereof constitutes receives the moisture film chamber, and a stoste part that enters water guide film chamber sees through milipore filter and enters receipts moisture film chamber and become clear liquid, and remainder is dope.Milipore filter 2 is a rectangle, is substrate with the nonwoven, and its two ends evenly have the cloth gully-hole.Weather board comprises top board 6, lower platen 7 and the folded middle minute plate 8 that is sandwiched between the upper and lower pressing plate, makes by poly-two alkene materials, and its shape is all identical with milipore filter with size.The weather board two ends evenly have cloth gully-hole A, B, C, D and the A ' B ' C ' D ' that the cloth gully-hole with the milipore filter two ends is superimposed, middle cloth gully-hole place, the two ends intersection of plate 8 of dividing has cloth gallery EF and E ' F ', all have the cloth bar bundle that catchments in each cloth gallery, cloth catchment the quantity of bar bundle with 3 for good.The middle part of top board 6 and lower platen 7 is netted, and middle minute plate middle part is divided into two thin layer water guide film chambers for solid slab and with water guide film chamber.The shape of water collecting plate and structure and weather board are basic identical, but the mutual stereo staggered in position of wherein dividing middle minute plate two ends cloth gallery of the position of plate two ends cloth gallery and weather board, middle minute plate middle part of water collecting plate also are solid slabs and will receive the moisture film chamber and be divided into two thin layers receipts moisture film chambers.The shape of train wheel bridge 4 and lower plate 5 is identical with milipore filter with size, is installed on the both sides up and down of membrane stack respectively and with the membrane stack clamping, has the stoste hole 9, dope hole 10 and the clear liquid hole 11 that communicate with the cloth gully-hole at membrane stack two ends respectively on it.Stoste enters each water guide film chamber through stoste hole 9 by the shunting of membrane stack one end, and the dope of each water guide film chamber comes together in the other end of membrane stack and 10 discharges through the dope hole, and each clear liquid of receiving the moisture film chamber comes together in the two ends of membrane stack and 11 discharges through the clear liquid hole.

The utility model is because middle minute plate of its weather board and water collecting plate is solid slab, so make a thick film chamber be divided into two film chambers, film chamber thickness significantly reduces (can accomplish that 0.5mm is following), and the feed liquid in the film chamber reaches turbulent flow easily, has improved the hydraulic characteristic of ultrafilter. Simultaneously, divide plate to have higher mechanical strength in solid, can prevent effectively that membrane stack from subsiding or protrudes, the maintenance membrane stack is smooth. Therefore, the utility model is particularly suitable for as the ultrafiltration apparatus in the industries such as food, chemical industry, medicine, printing and dyeing.

Claims (2)

1, a kind of dull and stereotyped ultrafilter that utilizes milipore filter that the macromolecular substances in the solution is separated with small-molecule substance, be superimposed into membrane stack with N sheet water collecting plate and adopt train wheel bridge and lower plate closely is overrided to form by N sheet (N 〉=2) weather board, N sheet milipore filter, the milipore filter of weather board and both sides thereof constitutes water guide film chamber, the milipore filter of water collecting plate and both sides thereof constitutes receives the moisture film chamber, a stoste part that enters water guide film chamber enters receipts moisture film chamber through milipore filter becomes clear liquid, and remainder is dope; Described milipore filter is rectangle and is substrate with the nonwoven that its two ends evenly have the cloth gully-hole; Described weather board comprises top board, lower platen and the folded middle minute plate that is sandwiched between the upper and lower pressing plate, make by polypropylene material, its shape is all identical in milipore filter with size, its two ends evenly have the cloth gully-hole that the cloth gully-hole with the milipore filter two ends is superimposed, the middle part of upper and lower pressing plate is netted, and cloth gully-hole place, the two ends intersection of middle minute plate has the cloth gallery; Described water collecting plate comprises middle minute plate between top board, lower platen and folded folder and the upper and lower pressing plate, make by polypropylene material, its shape, size and the structure upper and lower pressing plate with weather board respectively are identical with middle minute plate, but the mutual stereo staggered of cloth gallery at middle minute plate two ends of the cloth gallery at middle minute plate two ends and weather board; The shape of described train wheel bridge and lower plate is identical with milipore filter with size, be installed on the both sides up and down of membrane stack respectively and membrane stack is clamped, have the stoste hole, dope hole and the clear liquid hole that communicate with the cloth gully-hole at membrane stack two ends respectively on it, stoste enters each water guide film chamber through the stoste hole by membrane stack one end, dope is discharged through the dope hole by the other end of each water guide film chamber, and clear liquid is then discharged through the clear liquid hole by the two ends that each receives the moisture film chamber; The middle minute plate middle part of described weather board and water collecting plate that is characterised in that of the present utility model is solid slab, and each cloth gallery at middle minute plate two ends all has the cloth bar bundle that catchments.

2, dull and stereotyped ultrafilter according to claim 1 is characterized in that dividing in described each cloth gallery at plate two ends to have 3 cloth bar bundle that catchments.

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