Warning device for dangerous situations
AssigneeBEDA Oxygentechnik Armaturen GmbH
InventorReinhardt Bayer
Life of this patent
Estimating the term…
Abstract
When using oxygen gas pipes 3, situations can arise, in particular due to slag return and similar dangers, in which the operator must initiate safety measures. Slag return safety devices are known which, in such a case, ensure that the gas flow is stopped by melting a cap 35 of a heat sensor 5. The response of this outlet valve 6 of the slag return safety device can be recognized, for example, by the fact that the inlet pressure of the existing oxygen gas 4 is used to push pins 21 located in the wall 19 of the oxygen gas pipe 3 beyond the outside 27 of the oxygen gas pipe 3, so that they cannot be overlooked as a warning signal. The movement of the pins 21 can be used to activate further signal systems 30 in order to provide additional indications of this movement optically and/or acoustically.
Claims10
Device for indicating dangerous situations for gas-conveying lines (2), comprising,
- integrated oxygen gas pipes (3) which are adapted to provide blockage of the oxygen gas when there is a risk of ignition of the oxygen gas, the device further comprising
- a heat sensor (5) and an outlet valve (6) that is adapted to be closed by a primary recoil spring (7),
- an inlet valve (16) adapted to be shut off in case of failure of the gas flow
- wherein the outlet valve (6) is shaped as a bowl (8), having a bowl edge (9) configured to seal a partition wall (10), with a cavity (11), at a back 12 of the bowl,
- a back of the bowl (12) connected to the heat sensor (5) via a punch (15),
- the inlet valve (16) being arranged on an opposite side of the partition wall (10), the inlet valve being adapted to open by the gas flow from the oxygen gas (4) against a return force of a secondary recoil spring (17),
- wherein the wall (19) of the oxygen gas pipe (3) has at least one through bore (20) in an area of the outlet valve (6),
- a sliding pin (21) is mounted, with its opening part (22) located below the pin (21) and wherein, through a response from the heat sensor (5) and closure of the outlet valve (6), the opening part is connected with the oxygen gas (4), which is under residual pressure, in the cavity (11).
Dependencies are inferred from the claim text.