DE6923121U - DOUBLE-WALLED TUBE OR VESSEL MADE OF GLASS OR GLASS-LIKE MATERIAL - Google Patents

Description

^ Vi · Glastechnik JrabH in iJlesbaden-Schlerstein

Double-walled tube or vessel made of glass or similar

material

The invention relates to a double-walled hour or vessels made of glass or glass-like, brittle material, that is primarily intended for operational use and for this in comparison to laboratory equipment accordingly should have larger dimensions.

For Labergerate it is known »for hot or cold transfer between two flowing media Joppel jacket pipes or -Glass vessels are to be used, in which the outer jacket, which is sunk with a connecting piece, is connected to the glass tube at both ends is one-piece and permanently connected by fusing. Is in the case of strong temperature differences or if the length of the If the outer jacket has to be expected to have different expansions between the drilling and the outer jacket, it is customary to provide the outer jacket with compensation waves. requirement for the effectiveness of these Koapensacoren is the low wall thickness

des, tube jackets, which, however, are only suitable for laboratory devices comes.

For the production of industrial pipe lines or Apparatus parts made of glass are practically only used in thick-walled glass Consideration, it was tried now and then, also here Aui3eninänteljauf Tubular parts or vessels by fusing the inden firmly applied, but with little success, and only with relatively short sawn parts. If the dimensions become larger, especially with a larger distance between the deep lines, so high tensile stresses occur at temperature differences between the flowing media that 3 rupture cannot be avoided. In order to avoid this danger, one has to work with technical systems with double-walled tubes or vessels made of glass, in which higher temperature differences occur, limited to the outer tube or an external one The vessel jacket is attached to both sides by means of plastic sleeves and union nuts or sealing rings on the inner tube or inner vessel in such a way that that the possibility of separate expansion of the parts lying together remains. Although this design is operationally safe, However, it is comparatively heavy and expensive and, moreover, it has the disadvantage that it penetrates every bark of the outer coat the required length of the stuffing box at least 50 mm for the heat transfer is lost.

The invention is based on the object for operationally Double-jacket tubes or vessels made of glass to be used represent the one-piece structure between the tube or vessel and the outer jacket to create a permanent, permanent fusion connection,

But to train the outer space in such a way that there is a free space is guaranteed between the parts.

This task is solved in accordance with the invention in that <3 of the Outer jacket only fused to the ear or vessel wall at one side 1st and encloses them with the other inde without contact. This other end is then intended to be stretched longitudinally the parts not impairing, preferably elastic seal are sealed, as far as this xinae a Seal is needed at all. If, for example, a medium is to be introduced without pressure at the upper & nde into the outer wall, and Although in the same amount as it flows off at the lower end, the upper i & ide of the outer jacket can remain open if necessary.

The seal on the open inside of the outer jacket can open different ways, also with the known means. In a preferred embodiment, the outer jacket on his open bark a drawn-in hand, with which he brought a hand that was in the cloak room and was brought in by aingieiae Seal overlaps on the outside.

The drawing shows an example of the implementation of the invention, namely a double-jacket pipe shown in longitudinal section for an industrial glass fitting.

An elna? Made of glass in technical dimensions » Inner tube 1 is an outer jacket 2, also made of glass, with its upper iinde firmly and permanently fused. The lower ande of the outer shell 2, on the other hand, has one drawn-in edge 3, which the inner tube 1 at a small distance

encloses without contact, uer between the tube 1 and the; The outer casing located next to this is closed by an elastic seal which, in the position of the pipe provided with the outer casing, is introduced from above by pouring it into the dumbbell space. The seal can for example consist of silicone rubber. If necessary, the annular gap can be temporarily closed by an attachment ring when the sealing material is poured in. The drawn-in edge 3 at the open end of the outer jacket has the advantage that when pressures occur in the Kantelraura k the seal is pressed against its seat while increasing the seal pressure.

A one-piece double-walled vessel can also be used in a corresponding manner are made of glass for industrial use so that the outer jacket at one end with the Glass wall of the vessel is melted, but encloses it at the other end without contact.

Of course, the double jacket pipe shown can also be used horizontally or in such a way that the open or with the end of the jacket provided with the seal is at the top.

Claims (3)

.jLl '11.'. U ■ '.'- -j. .'Jill1 'Ό:!' ·: 1. üoppelwandiges tube or vessel made of glass or glasähnliohem, brittle material, especially in larger dimensions suitable for industrial use, the outer shell of which is integrally and permanently connected to the tube or vessel wall by fusing, characterized in that the outer shell (2) only at one end with the pipe or vessel wall (1) is versohraolzen and encloses it without contact at the other end. 2. Pipe or vessel according to claim 1, characterized in that the outer jacket (2) has a retracted one at its open end Hand (3) has. 3. Pipe or vessel according to claim 2, characterized in that the outer jacket (2) with the retracted edge (3) of his open linden one located in the shell space (^), by pouring introduced seal overlaps on the outside.