DE8306061U1 - CONNECTION HOUSING FOR SENSOR - Google Patents

Description

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Degussa Aktiengesellschaft 6000 Frankfurt am Main, vfeissfrauenstrasse 9

Connection housing for transducer 10

The innovation concerns a connection housing for transducers, especially for use in nuclear reactor technology, with one or more metal connection pipes and a metal sensor connection pipe.

The use of transducers such as B. electrical thermometers or pressure gauges, is usually done in the way that in the wall of the container that is to

containing measuring medium, a fitting in the form of a connection housing is used, of which the sensor connection and branch off one or more supply lines. The part of the sensor or sensor connection protruding into the container, usually in

In the form of a tube, it is tightly inserted into the wall of the 25th

Used container, so that an escape of the medium to be measured is practically impossible.

While the part of the sensor or

The conditions prevailing there, such as 30

Temperature _f Pressure and radiation, exposed, is subject

the part of the transducer located outside the container and the connection housing mostly only under normal ambient conditions. However, especially when used in the _ _c reactor technology and in nuclear power plants may be in the so-called fault, this part of the transducer

/ 4

-A-

and the connection housing may also be exposed to the medium with respect to pressure, temperature and radiation, and leaks in the connection housing can lead to failure of the transducer. Since the transducers used are mostly supposed to fulfill safety tasks, their reliable availability must be guaranteed. Connection housing made up of several parts and the necessary sealing points - ₀ between the parts always mean an increased safety risk.

There are connection housings for transducers known with one or more supply connection pipes and a , j sensor connection pipe are provided. However, these are because of the sealing problems are not suitable for applications in nuclear reactor technology.

It was therefore the object of the present innovation to create a connection housing for transducers, in particular for use in nuclear reactor technology, with one or more metal supply connection pipes and one metal sensor connection tube, which has only a few detachable parts and sealing points, the seals used Maintain their function over a long period of time even when exposed to accidents (e.g. radiation, temperature, pressure) have to.

This object has been achieved according to the invention in that the housing consists of two half-shells into which the lead connection pipe or pipes and the sensor connection pipe are welded or soldered, the sensor connection pipe protruding into the housing and carrying a connection plate for contact elements.
35

The half-shells of the housing advantageously have each same shape and size, making them economical

can be manufactured. It is also an advantage if 5

the supply connection pipe and the sensor connection pipe in

the same half-shell are attached and their axes are perpendicular to each other.

In the connection housings according to the innovation, the number of Components and the number of sealing points reduced to the bare minimum.

The sealing materials used are metals or radiation] g and temperature-resistant plastics are used. Such seals are preferably located between the two Half-shells and at the point of introduction of the supply lines into the supply pipes and also show over a long period of time no impairment of their sealing function.

A connection coupling is preferably attached to the sensor connection pipe. The seal takes place because of the at this Face the high temperatures often prevailing with a metal sealing ring that has an x-shaped asymmetrical Has cross-section and is thereby pretensioned after screwing the connection coupling that an expansion due to temperature fluctuations between the connecting parts is compensated and the sealing function is not get lost.

The two half-shells of the housing are advantageously held together by screws, the screw head of which e are shaped so that they can only be loosened with a special tool.

Figures I and II show schematically the renovation Connection housing in an exemplary embodiment

._ form, b

In the two half-shells of the housing (1), which are identical in shape and size, there are two Suleitverbindungsrohre (2) and a sensor connection tube (3) welded into the housing (1) and a connection plate (4) for the Contacting elements carries. Between the two half-shells there is a sealing ring (6), which is secured by screws (7) is tensioned and seals the interior of the housing (1). Another seal (8) sits at the point of introduction of the

, ε supply lines (10) in the supply connection pipes (2). That The sensor connection tube (3) is connected to a connection coupling (5) which carries a sealing ring (9). The number of Seals is thus reduced to three in the simplest case.

January 21, 1983 Dr Br-hm

Claims (8)

83 124 ET Degussa Aktiengesellschaft 6000 Frankfurt am Main, Weissfrauenstrasse 9 Protection claims:
10 Connection housing for transducers 15 / 1J connection housing for transducers, in particular for use in nuclear reactor technology, with an or several metal supply pipes and one metal sensor connection pipe, characterized in that the housing (1) consists of two half-shells, in 20 the one or more supply pipe connection pipes (2) and the Sensor connection tube (3) are tightly welded or soldered, the sensor connection tube (3) protruding into the housing (1) and carrying a connection plate (4) for contacting elements.
25th 2. Connection housing according to claim 1, characterized in that the half-shells of the housing (1) are each the same in shape and size. 3. Connection housing according to claim 1 and 2, characterized in that the supply connection pipe (2) and the sensor connection pipe (3) are fastened in the same half-shell and are perpendicular to one another in their axis. 35 / 2 4. connection housing according to claim 1 to 3, characterized in that between the two half-shells of the Housing (1) a seal (6) made of metal or a ο radiation and heat resistant material is arranged. 5. Connection housing according to claim 1 to 4, characterized qekenn- - characterized in that the half-shells of the housing (1) are held together by screws (7) with a special head shape. 6. Connection housing according to claim 1 to 5, characterized in that the supply connection pipes (2) at the point of introduction de ^ r supply lines (10) carry a seal {8) made of a radiation and heat-resistant material. 7. connection housing according to claim 1 to 6, characterized in that a connection coupling (5) with a metallic sealing ring (9) is attached to the sensor connection tube (3), which has an asymmetrical x-shaped cross-section * 8. Connection housing according to claim 1 to 1, characterized in that two supply connection pipes (2) are attached to the housing (1).