DE1973687U - SEALING DEVICE FOR THREADY ELEMENTS TO BE INSERTED INTO PRESSURIZED CHAMBERS, e.g. PROBES. - Google Patents

Description

Sealing device for in pressurized Filamentary elements to be introduced into chambers, e.g. probes

The innovation concerns a device for producing the tightness of thread-like elements, E.g. of thermoelectric probes (or devices for measuring the flow rate), which are installed in a sub Pressurized chamber to be installed, especially in nuclear reactors, in which means such probes in particular those in the reactors or in the vicinity of the nuclear fuel elements or cartridges prevailing temperatures are to be measured.

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The main purpose of the firing is installation

and especially to facilitate the pulling out of such gate directions, but the seal too. guarantee.

For this purpose, according to the innovation, in such Systems designed in such a way that the thread-like device or probe passes through the wall of the chamber must pass through seals made of a deformable plastic, so that the holes can be opened after pulling out the door direction Close the seals again and ensure a perfect image.

The firing is explained below by way of example with reference to the drawing, the only illustration of which in an exploded schaubildliehen view the various parts for the renewal according to the attachment of a shows a probe passing through the wall of a nuclear reactor

The use of the furnace shown relates to the incorporation of thermoelektrisehen probes (or devices with J ¹ Iussmessung) in a pressurized nuclear reactor, which thus dureh the wall of the chamber or other ropes must enter the reactor.

According to the commitment, the training is such that such a probe can be pulled out, whereby however, the seal is maintained, and without measures other than the exercise of a Pull on the probe to pull it out of the chamber.

Such an installation or sealing system would be required for this uses that as a result of the stalemate of Perforated disks or seals made of a deformable plastic plastic, through which the probe passes, the tightness after

after pulling out the probe, see the Close the holes or recesses provided for the passage of the probe after the probe has been withdrawn.

Furthermore, in order to facilitate the

Insertion and installation of the probe make the training so that the introduction of the probe into these perforated disks and the others Rope © for securing the probe in its position of use laterally to these files in radial passages provided in these *

For this purpose, for example * the one shown on the drawing can be used Execution can be selected.

In this case, 1 is a rope of the wall of the nuclear reactor or of a gate direction or arrangement built into it .

The probe shown at 2 , which has the shape of a wire with a small diameter, in particular in the order of magnitude of 1 mm, should pass through this wall section.

Meser wire is inserted into a solge of elements which are to be inserted into a corresponding bore 3 in the wall, at least one of which is threaded at 4. These parts are e.g .:

a wire guide 5, which come to the bottom of the bore 3 and strike against a shoulder 6 of the same should, this wire guide consists of two semi-cylindrical ropes, which look against each other so that they leave a free passage for the wire}

a certain number of elastic seals 7 of the type defined above?

an additional ring made of metal 8 to transmit the tightening force;

and a screw plug 9, through which

also the probe occurs, and which is screwed into the threaded part 4 of the bore.

According to the hiring feature mentioned above, the various ropes, such as the sightings 7> a metal plate or pressure washer 8, as well as the plug 9 on the side at 10 or 11 or »12 for insertion the probe.

Thanks to these slots, the probe or the wire 2 can apparently be inserted into the corresponding cables during installation without the end of it having to be plugged in.

The installation after the application of the various parts on the wire takes place in that the arrangement is inserted into the bore, setting it up so that the slots 10 of the seals 7 are offset from one another are «, the plug 9 is then screwed in so that the The whole can be tightened to the bottom 6 of the bore.

In this position a complete seal is apparently achieved.

However, this does not prevent the probe 2 from being able to be pulled out if desired without the The plug 9 has to be unscrewed or at least completely stolen, although the tightness after pulling it out is maintained.

After pulling out, the seals 7 keep their slots due to the contact pressure produced

10 closed, what the seal despite the Torhandenseims of a brackish, which especially in a reactor of the order of magnitude 60 kg is guaranteed.

From the above it can be seen that, if one rises from a certain operating period of the reactor e.g. wants to remove one or more fuel cartridges beforehand so as not to be disturbed by the connections, separate the corresponding probes 2 can be removed, simply by pulling them out in the above manner, without this to change the tightness conditions.

The renovation according to the installation of probes has numerous gate parts compared to the already known systems of this type, in particular the followingϊ

The tightness is maintained during the period of use the probe maintained j

the seal is maintained both during pulling out and after this;

the smallest space requirement can be achieved.

Claims (4)

RA.506 659-2.9.67> Protection claimsclie 1. Device for maintaining the tightness of a thread-like element, in particular a probe, which in a pressurized chamber, preferably a nuclear reactor, is introduced, characterized in that that the probe (2) when it passes through the wall (1) of the chamber or the wall of one of this chamber belongs Partly is mounted in seals (7) made of a deformable plastic that after pulling out the probe close the holes in the seals again, ensuring a perfect seal. 2 «, device according to claim 1, characterized that the probe (2) successively from a wire guide (5)? several plastic seals (7)? one Disc (8) for receiving the pressure and a threaded plug (9) is surrounded and that this arrangement in a corresponding Threaded hole (4) of the wall in question can be screwed in. 3. Apparatus according to claim I ₃ characterized in that the parts through which the probe (2) passes have radial slots (10, 11, 12) into which the probe can be inserted without its tip must be plugged in., 4. Apparatus according to claim 3, characterized that the slots (10, 11, 12) of the various elastic seals are offset from one another.