Apparatus and method for tightly of security unit control unit can be shut off valves of a liquid fuel - furnace

摘要

Device for the sealed reliably unit control unit arranged in pairs can be shut off valves in a furnace operated with liquid fuel, with a flow line, a combustion device and a return line, wherein in the forward flow pipe a first runnings - quick-closing fitting, a first forward - safety shut-off valve and a second forward - safety shut-off valve and in the return conduit a first return - safety shut-off valve, a second return - safety shut-off valve and a return flow - quick-closing fitting, are provided with a testing device, and with the in the feed line between the closed first runnings - quick-closing fitting and the closed first runnings - safety shut-off valve and in the return conduit between the closed second return - safety shut-off valve and the closed return - quick-closing fitting a test pressure is generated, and with a pressure measuring device for measuring the pressure between the first runnings - quick-closing fitting and the first runnings - safety shut-off valve or between the second return - safety shut-off valve and the return flow - quick-closing fitting, and method for the control unit, which tightly.