Warning Device for Dangerous Situations
AssigneeBEDA Oxygentechnik Armaturen GmbH
InventorReinhardt Bayer
Life of this patent
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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
Display device for indicating dangerous situations for gas-conveying lines (2), which have, in particular, integrated oxygen gas pipes (3) integrated in them and if there is the risk of ignition of the oxygen gas (4), the oxygen gas pipes (3) are designed to provide blockage and are equipped with a heat sensor (5) and an outlet valve (6) that can be initiated by means of a primary recoil spring (7), as well as an inlet valve (16) that can be shut off in case of failure of the gas supply, in which the outlet valve (6) is shaped like a bowl, whose bowl edge (9) is arranged on a partition wall (10), creating a cavity (11) for support, and with the back of the bowl (12) connected to the heat sensor (5) via a punch (15), and in which the inlet valve (16) is arranged on the other side of the partition wall (10) and is designed to open by means of the gas pressure from the oxygen gas (4) against the 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 the area of the outlet valve (6), in which a sliding pin (21) is mounted, with its opening part (22) located below the pin (21) and which, through the response from the heat sensor (5) and closure of the outlet valve (6), is connected with the oxygen gas (4), which is under residual pressure, in the existing cavity (11).
Dependencies are inferred from the claim text.