DE7931028U1 - DEVICE FOR STRESS-FREE AND SEALING CONNECTING TWO OR SEVERAL GLASS TUBES - Google Patents

Description

Description;

The present innovation relates to a device for tension-free and tight connection of two or more glass tubes , consisting essentially of pipe pieces, in each of which one end of the glass tube is inserted from both sides is.

When setting up procedural pulse columns for chemical processes, the inner wall of the columns used for the columns may be used Glass tubes do not create large gaps, as otherwise the flow conditions in the column are falsified. Precisely manufactured, calibrated glass tubes are required for this, which must be assembled without tension and in a medium-tight manner.

The object of the present innovation is now to provide a device of the type mentioned at the outset with which a medium-tight and a tension-free construction from individual stacked glass tubes is guaranteed.

According to the present innovation, this object is achieved in that narrower ring seals are inserted from both sides of the hollow pipe section in its recesses separated from one another by a collar by means of an axially displaceable wedge ring, the inner sealing surfaces of which are located on the end of the glass tubes and that the seals have an axial bottom lip which axially support the end faces of the glass tubes and that the individual tube pieces can be braced against one another, for example by means of spacer bolts. It is advantageous that the axially displaceable wedge ring rests against a clamping nut which can be screwed into the recesses by means of a thread over the sealing ring and that around the

-3-

RohrstUck around a flange is present, in which the spacer bolts are screwed parallel to the glass tube.

In this way, the glass tubes can be pressureless and tension-free by means of the specially shaped special profile seal assembled with a loose, wedge-like ring and a clamping nut which enables any number of calibrated. Glass rotors independent of each other to be built on top of each other to form a column.

Further details are explained in more detail below with reference to the figure, which shows a cross section through the device:

According to the figure, the calibrated glass tubes 1 are to be connected to one another. The main element of the connection is that Pipe section 2, which has approximately the shape of an internally offset pipe socket having a circumferential flange 9. The two halves of the pipe section 2 are, based on the inside in the Center circumferential collar Io is symmetrical and is attached to the glass tubes 1 from both sides in the same way connected. For this purpose, the interior of each half of the pipe section 2 is narrowed by means of a shoulder 11, with this Narrowing an annular seal 3 is inserted with a special profile. Into the inner sealing surface 15 of the seal 3 the glass tube 1 is inserted so that its end face 12 is supported on the axial bottom lip 13 of the seal 3. On the other, opposite end face of the seal 3, an annular groove 14 is introduced into which a axially displaceable wedge ring 4 can be inserted through which Displacement the inner sealing surface 15 of the seal 3 can be narrowed- This will make the actual sealing of the calibrated Part 16 of the glass tube 1 reached.

-4-

The wedge ring 4 is through the end face 18 of the clamping nut 5 pressed into the annular groove 14 of the seal 3, in which the clamping nut 5 by means of the thread 17 in the interior of the pipe section 2 is pushed. There are 2 in the pipe section for both calibrated pipe parts 16 to be connected or connected, all parts described above such as clamping nut 5, wedge ring 4 and seal 3 etc. available twice or symmetrically.

The glass tube 1 is surrounded by a protective tube 19, which is held by means of the spacer rings 2o and contains in its interior 23 fixtures 21, which are not detailed for implementation explained electrochemical processes.

As already mentioned, the seals 3 are pressed into the recesses 22. This and the effect of the wedge ring 4 this is sealed in the pipe section 2 to the outside. The same remains between the end faces of the calibrated pipe ends 16 the flange space 24 free, which is accessible from the outside by means of channels 25 in the flange 9 for test purposes. Ultimately are on that Flange 9 is still provided with spacer bolts 6 fastened by nuts 8 and washers 7, with which the individual pipe sections 2 are held against each other between the various pieces of glass tube 1 (no longer shown).

A column of individual glass tube sections 1 by means of intervening Pipe sections 2 is now built up in the following way:

First, the lower pipe section 2 of a glass pipe section 1 is prepared. It is used to hold the special profile oil seal 3, of the wedge ring 4 and the clamping nut 5. Then the spacer bolts 6 on the pipe section 2 by means of the washer 7 and the Hex nut 8 installed and tightened. Then the glass tube 1 is through the clamping nut and the wedge ring 4 in the

-5-

It I I I I

Special profile seal 3 inserted loosely.

Then, on the upper part of the glass tube 1, first another clamping nut 5, then the corresponding wedge ring 4 and the seal 3 pushed onto the glass tube 1. Now will the next pipe section 2 is pushed over the seal 3 and the glass tube 1 and screwed to the spacer bolts 6. In In this state, the glass tube 1 is held loosely and tension-free by means of both seals 3. After that, the upper and the lower clamping nut 5 is slightly tightened.

The advantage of such a connection by means of the special profile seal 3 consists firstly in a good sealing of the glass tube on the outside diameter by means of the deformable inner sealing surface 15 in the seal 3. The corresponding deformation occurs by tightening the clamping nut 5 via the loosely inserted wedge ring 4 in the annular groove 14. Through the elastic bottom lip 13 on the lower part of the seal 3, the longitudinal expansion of the glass tubes 1 is absorbed.

Claims (3)

Protection claims; 1. Device for tension-free and tight connection of two or more glass tubes, consisting essentially § made of pipe pieces, in each of which one end of a glass _{: i} tube is inserted from both sides, thereby ;; characterized that from both sides of the hollow tube ^ f piece (2) in which by a covenant (lo) other separate recesses (22) by means of an.axial displaceable wedge ring (4) constricting ring seals | (3) are inserted, the inner sealing surface (15) of which the end (16) of the glass tube (1) are located and that the seals (3) have an axial bottom lip (13), which <? th end faces (12) of the glass tubes (1) are axially supported and that the individual pipe sections (1) can be braced against one another, e.g. by means of spacer bolts (6). 2. Apparatus according to claim 1, characterized in that the axially displaceable wedge ring (4) on a clamping nut (5), which can be screwed into the recess (22) by means of a thread (17) via the sealing ring (3). 3. Device according to claim 1 to 2, characterized in that that around the pipe section (2) there is a flange (9) in which the spacer bolts (6) are parallel to the glass tube (1) are screwed in. -2-