DE648128C - Bell cap with liquid seal for gas pipes - Google Patents

Description

Bell lock with liquid seal for gas pipes Bell locks with liquid seal for air or gas pipes are in the most diverse Executions. He is known, especially in. Gasworks, with the leading to the gas container Lines, furthermore in the furnace gas lines and blower air lines in the case of Ho.chofenanlagen etc. It is also known that when opening and closing such a closure due to: the kinetic energy of the air or gas flow almost all of the shut-off liquid is entrained in the drain and atomized. The introduction of new sealing liquid is only possible when the supply line is shut off and with it the flow is prevented. But there is usually a long time until the shut-off device is operated As time goes by, there are often no large losses of gas, air or shut-off liquid to avoid that depending on the value of the lost stoffee and the size the line can be very costly if the closure is operated frequently. In the case of an open gas or air discharge, there is an additional disadvantage: that the atomized liquid when it emerges from the pipeline as rain falls down and can have unpleasant consequences for the environment.

The present invention easily achieves all of these Avoid disadvantages. It does this by making a pre-seal with the bell . Connected and that the liquid seal before opening the line closure is eliminated.

In Fig. Z, a disk gas bender is shown as an example in a known arrangement a shown; whose blow-out line b is provided with a shut-off valve c is. Lurch a stop d is in the highest position of the container disk e Bell of the valve c by means of a lever f through a rope. g go. like. raised and the exhaust line is open.

According to the invention, a cone is now on the inside of the shut-off bell h (see Fig. 2 to q.)! attached with a cylindrical extension k. The cylindrical part k fits into the exhaust pipe b with a small amount of play. In the closed position (section 2), the shut-off bell sits with the cone attachment i on the larger edge of the pipe socket f. It can be seen that the gas can only pass through any imprecise points between the cone shell i and the pipe socket L , but is prevented from flowing out by the shut-off liquid in.

Will. now the shut-off bell h lifted out of the liquid, so would do this shortly before stepping out with an ordinary shut-off bell valve. lower edge of the bell from the shut-off liquid, the gas penetrate the latter and, there then. the full pipe cross-section becomes free, in large amounts flow out, whereby the shut-off liquid would be carried along in a finely atomized form. From Fig.3, however, he is :. Obviously that with the new arrangement 8i @ 'piston-like Approach k the opening of the Rd @ rI, socket 1 still covered. In the middle of the pipe 1 and the piston k existing gap, the gas pressure is down to a harmless one Measure throttled, and only small amounts of gas can escape, although the shut-off bell h is already completely lifted out of the liquid m. Fig.q. shows that Valve in - fully open position.

When lowering the bell from the position shown in Fig. Q. position shown first the supply pipe closed by the piston-like extension k, and only then the liquid seal comes into effect.

The cone i can be ground in at the upper end of the supply pipe so that it forms a completely tight valve seal here.

Figs. 5 and 6 show simplified embodiments in which the thought is utilized before opening this feed line closure the liquid ; # to remove the seal or the fluid at> Attention only after production of the line conclusion. to take effect again.

Claims (2)

PATENT CLAIMS: i. Bell cap with liquid seal for Gas pipes, characterized in that the inside of the bell (h) acts as a pre-seal a piston (k) closing the supply pipe (1) is arranged in such a way that it opens later when the bell is raised and closes earlier than the when it is lowered Liquid seal. 2. Bell lock according to claim i, characterized in that that on the bell (h) next to the liquid seal and apart from the pre-seal a tightly closing valve seal (i) is provided for the supply pipe (1) which takes effect when the bell is placed on it.