DE202009011061U1 - Membrane filter modules with compact connections - Google Patents

Abstract

Membrane filter module, equipped with a housing with connections for at least inlet, drain and filtrate, with the feature that the connections are positioned close to each other.

Description

The The present invention relates to a membrane filter module which from a housing with connections for at least Inlet, drain and filtrate is.

In In practice, membrane filter modules are known which are provided with connections for feed, Drain and filtrate are equipped. Membrane filter modules, in particular for the filtration of liquids, are often made as a tubular housing, in which extending capillary membranes are located.

These Capillary membranes extend in the entire housing and are with their respective ends in a potting compound (resin) embedded. This potting compound is located at the two ends of the housing and close the housing completely off. The housing is equipped with end caps at both ends. The liquid to be filtered becomes in an outside the first composite mass passed through the room the housing placed end cap is formed, after which the feed to be filtered passed through the capillary membranes becomes. In the case of a cross-flow filtration becomes part of the feed with impurities contained therein to the other room at the other End of the membrane filter housing guided, where also a space forming end cap is placed.

This Outlet flow, also called retentate, is discharged via a drain connection. At least Part of the feed is through the existing in the walls of the membranes Guided pores and forms the filtrate. This filtrate is by means of a in the housing wall existing Filtratanschlusses removed from the housing. In the case of a dead-end filtration on the other hand, the entire liquid flow, fed as feed is passed through the membranes and forms the filtrate.

by virtue of This structure of known membrane filter modules are the relevant connections for feed, Drain and filtrate are far apart. The connection for the Inlet is often nearby or attached to the first end cap. The connection for the process is mostly nearby or placed on the second end cap. The filtrate port is often mounted on a position in the side wall of the housing.

This leads to Complications during assembly and installation of the membrane filter modules. Because of changes in the temperature of the liquid to be filtered, the dimensions of the membrane filter module, especially the case, considerably vary. The distances the connections with each other for feed, Process and filtrate also vary considerably, causing considerable tension arise on the module, which can lead to damage.

In In practice this is solved by the use of flexible connection hoses. The However, installation becomes more difficult.

The The invention now has the purpose of an improved membrane filter module To provide.

Especially the invention has the purpose to provide a membrane filter module, where the connections for feed, Drain and filtrate are close together.

Farther The purpose of the invention is to provide a filter module which can be easily mounted on inlet and filtrate lines.

Also The purpose of the invention is to provide a module to which temperature fluctuations of the Inlet flow have a lower effect, as is the case with Modules of the prior art described above.

It However, this is not readily possible, the Membrane filter module itself adapt such that, for example, the first and second end caps are close to each other.

Loud The invention is at least one of the aforementioned purposes by means of a, initially mentioned, membrane filter module achieved in the the connections are positioned close to each other. Such a membrane filter module is new.

It has the particular advantage that the connections on a line one behind the other are located. This has the advantage that outside the membrane filter module Lines can be easily installed, including the external connections easy to be equipped in a standard size can.

More accurate said it has the merit of being the distance between side by side located connections at the most five times the diameter of a terminal provided on the membrane filter module is.

Especially it has the advantage that this distance is at most four times, preferably at most three times or even only twice.

Another embodiment of the invention has the advantage that the connections of the membrane filter module are mounted in the vicinity of the housing end. This has the advantage that the distance from at least one of the connections to the first composite mass or the second composite mass ge ring is. This has the particular advantage that the connection for the drain is attached mainly to the second end cap, when the discharged retentate is removed from the space defined by the second end cap from the membrane filter module. In this case, the connection to the outlet of the filtrate can be located next to the outlet connection and the connection for the inlet can be positioned next to the connection for the filtrate. The connection for the inlet is then to be connected via a line to be led through the housing of a membrane filter module to the space defined by the end cap. This line will then pass through the first composite. From the space defined by the first end cap, the feed is then directed into the capillary membranes.

To The invention relates to a membrane filter module as before called, wherein this comprises placed in a first composite mass membrane, wherein the first composite mass is attached to the first housing end and the membrane from there to the second housing end in one on the second Extend end provided second composite mass, wherein the inlet from the inlet port through a conduit provided in the housing led the first composite and wherein the drain through a pipe present in the housing the second composite mass is passed to the drain port.

One Such membrane filter module has the advantage that the connections in the housing wall are mounted on a position between the first and second Composite mass. As previously mentioned, the advantage is particular the one that the connections in a position nearby the second composite are attached. The mentioned here Purposes and benefits are achieved. These purposes and benefits are also achieved with a module in which the connections are approximately in the Midway between the two ends are positioned. In this case is a first line from the inlet connection to and through lead the first composite mass out and a second conduit through and from the second composite lead to the drain connection. For example, one then achieves a simplification of the assembly, the represents a significant advantage, since the connections of the housing ends are removed. The ends can then simply supported with the aid to be used is not a hindrance during assembly of the connections on the lines in question.

The Invention provides further advantages that a technician after the Read the general description given here and the following description a number of preferred versions, like the ones in the pictures are shown, will recognize.

1 shows a schematic view of the membrane filter module according to the invention.

2 shows an average in the direction of the arrows AA 1 ,

3 shows a detailed view of the terminals of the membrane filter module according to 2 ,

Same Elements in the various figures are given the same reference number designated. However, for the sake of simplicity, the description will be not all reference numbers are listed in all illustrations.

In 1 becomes a membrane filter module in a schematic way 1 shown. This contains at a first end 2 a first end cap 3 , At the second end 4 This membrane filter module has a second end cap 5 on.

Near the second end 4 are the connections for inlet, filtrate and drain located. These connections are in the embodiment shown a connection module 6 appropriate.

An average of the schematically represented membrane filter module 1 is in 2 shown. This average is in the direction of the arrows AA 1 ,

In the reproduction according to 2 Contains the membrane filter module 1 a housing 7 , At a first end 2 this case 7 there is a first composite mass 8th in which ends are embedded by capillary membranes. The other ends of these capillary membranes are in a second composite 9 embedded, which is at the other end 4 of the housing 7 located.

The end caps 3 respectively. 5 are shaped so that in the composite masses a space 10 respectively. 11 is created. In the first room 10 at the first compound mass 8th leads simultaneously a line 12 with the other end to a connector 13 connected to the inlet. Liquid to be filtered is via the port 13 through the supply line 12 to the room 10 led to the first end cap, from where they then through the capillary membranes in the direction of the room 11 is guided on the second end cap, where it passes over a connecting line 16 to the drain for connection 15 to be led. At least a part of the liquid to be filtered becomes through the pores present in the capillary membranes in the space surrounding the capillary membranes 17 shifts, and then on the connection 14 for the filtrate leave the membrane filter module.

In 3 is a detailed view of a portion of the membrane filter module 1 out 2 shown.

As in 3 can be seen, are the connections 13 . 14 . 15 formed from one part, and form a connection module 6 , The wall of the housing 7 is provided with three openings through which the three connections, from the inside out of the housing, are pushed through. The three connections 13 . 14 . 15 thus stuck outward from the wall of the housing 7 out. Subsequently, a saddle part 18 on the three connections 13 . 14 . 15 placed. O-rings are also attached (not shown) to the ports between the saddle and the housing for sealing purposes, as known in the art. Following are on the connections 13 . 14 . 15 Nuts placed, preferably by means of a communicating thread on the Au ßenseite the terminals and the inside of the nuts to the connection module 6 firmly against the inside of the wall of the housing 7 , and the saddle part firmly against the outside of the wall of the housing 7 to press. This will be a schlüssige connection of the connection module 6 reached in the membrane filter module housing.

The connection 13 for the feed is subsequently with a line 12 provided, which is up to the first end 2 of the membrane filter module 1 extends.

Thereafter, the membranes and the composite are in the housing 7 placed.

After that, the end caps 3 . 5 on the ends in question 2 . 4 placed, whereby the membrane filter module 1 ready for use.

Loud The invention is a very simple, but useful membrane filter module created. This membrane filter module according to the invention can be very on easy way to a standardized connection module (not shown), with dimensional changes of the membrane filter module as a result of varying temperatures the liquid to be filtered do not cause any voltages on the various connections. A problem The prior art is hereby repealed in an adequate manner.

1

Membrane filter module

2

first The End

3

First endcap

4

second The End

5

Second endcap

6

connection module

7

casing

8th

First Bonding compound

9

Second Bonding compound

10

room first end cap

11

room second end cap

12

supply line

13

connection for the Intake

14

connection for the filtrate

15

connection for the procedure

16

connecting line the end

17

filtrate in the module

18

saddle part

19

nuts

Claims (9)

Membrane filter module, equipped with a housing with connections for at least Inlet, drain and filtrate, with the feature that the connections close are positioned together. Membrane filter module according to claim 1, having the feature that the connections placed on a line one behind the other. Membrane filter module according to claim 1-2, with the Feature that the distance between adjacent ports at most 5 × the diameter a connection is. Membrane filter module according to claim 3, having the feature that the distance is at most 4 ×, preferably 3 ×, or even better at most 2 ×. Membrane filter module according to claim 1-4, with the Feature that the connections near one end of the housing are placed. Membrane filter module according to claim 1-4, with the Feature that the connections mainly in one position placed in the middle between the ends of the case. Membrane filter module according to claim 1, having the feature that contains in the first composite embedded membranes, wherein the first composite mass is located at a first end of the housing and the membranes extend from there to the second end of the housing in a second composite located at the second end, wherein the inlet from the supply line through an existing in the housing Conduction is guided by the first composite mass, and wherein the flow through one in the housing located line through the second composite to the drain port guided becomes. Membrane filter module according to claim 7, having the feature that the connections in the housing wall located in a position between the first and the second Composite mass. Membrane filter module according to claim 7 or 8, with the Feature that the connections yourself in a position nearby the second composite are located.