PROTECTIVE DEVICE FOR MEASURING INSTRUMENTS

摘要

The inventive protective device for measuring instruments comprises a body embodied in the form of a hollow cylinder provided with an access opening, an inflow pipe provided with a bypass and fixed to the body above said access opening. The bypass is provided with inlet and outlet pipes interconnected to each other. The outlet pipe is disposed above the access opening of the body and is provided with a connecting branch for connecting a measuring instrument, the inlet pipe and the external surface of the inflow being heat-insulated. The external surface of the outlet pipe and the external surface of the body which is disposed under the inflow pipe can be embodied in such a way that they are finned. The branch for the measuring instrument can be embodied such that it is inclined towards the outlet pipe and arranged together with the measuring instrument and a part of the body in a heat-insulated housing, said part of the body can being embodied such that it is finned. The external surface of the body which is disposed on the opposite side with respect to the inflow pipe and unclosed thereby can be heat-insulated. Additional drain holes can be embodied in the body on the plane of the access opening perpendicularly to the axis of the body and symmetrically with respect to the center thereof. A permeable netted nozzle can be arranged in the cavity of the inflow pipe above the access opening.