Apparatus for extracting gaseous specimens to be measured from a production process and system
An apparatus and a system for extracting gaseous specimens to be measured, preferably during the production of polycrystalline silicon, are disclosed. The apparatus according to the invention is a flange-like device ( 80 ), which is placed between each of the at least two pipe sections ( 11 a, 11 b, 21 a, 21 b, 41 a, 41 b ) of the outlet pipes ( 11, 21, 41 ).
1. An apparatus for extracting gaseous specimens to be measured from a production process for polycrystalline silicon, comprising:
at least one reactor;
a pipe system for feeding and/or discharging the at least one reactor with reaction gas, wherein the pipe system has at least a first pipe section and a second pipe section;
a flange connecting the first pipe section and the second pipe section,
wherein a reaction gas flows through the flange between the first pipe section and the second pipe section of the pipe system;
a sampling element inserted between the pipe sections inside the flange,
wherein a cross section of the sampling element is significantly smaller than a cross section of the pipe section; and
a heated pipe from the sampling element.
2. The apparatus of claim 1 , wherein the pipe from of the sampling element is connected with a gas-phase chromatograph.
3. The apparatus of claim 1 , wherein the flange connects the first pipe section and the second pipe section of at least one converter, at least one injection tank, and/or at least one vaporizer.