Pressure reactor for treating a sample fluid
A pressure reactor for treating a sample fluid includes an oven, a sample line partly arranged in the oven, and a pressure line arranged in surrounding relation to the sample line and partly arranged in the oven. The sample line has an outlet opening into the pressure line. A contamination blocking apparatus is disposed in the pressure line for forming a contamination barrier which has at least one section arranged between the outlet opening and the oven and which delimits a contamination-free region in the pressure line. The outlet opening of the sample line is arranged in the contamination-free region of the pressure line.
1. A pressure reactor for treating a sample fluid, said pressure reactor comprising:
an oven;
a sample line partly arranged in the oven;
a pressure line surrounding the sample line and partly arranged in the oven, said sample line having an outlet opening into the pressure line; and
a contamination blocking apparatus disposed in the pressure line for forming a contamination barrier which has at least one section arranged between the outlet opening and the oven and which delimits a contamination-free region in the pressure line, said outlet opening of the sample line being arranged in the contamination-free region of the pressure line.
2. The pressure reactor of claim 1 , wherein the pressure line has a compressed gas inlet for pressurization by a compressed gas, said compressed gas inlet being arranged in the contamination-free region.
3. The pressure reactor of claim 2 , wherein the contamination blocking apparatus is arranged as a counter-flow apparatus with the compressed gas inlet and a compressed gas outlet, said contamination barrier being formed by a flow of compressed gas from the compressed gas inlet to the compressed gas outlet.
4. The pressure reactor of claim 3 , wherein the compressed gas outlet is configured as a flow limiter.
5. The pressure reactor of claim 2 , wherein the contamination blocking apparatus is configured for forming a phase boundary between the compressed gas and an absorption fluid as a contamination barrier, said contamination-free region being configured for filling with the compressed gas.
6. The pressure reactor of claim 5 , wherein the pressure line is configured to receive the absorption fluid at least in a region of the oven.
7. The pressure reactor of claim 1 , wherein the oven is a microwave oven, said sample line and said pressure line being microwave-transparent at least in a region of the oven.
8. The pressure reactor of claim 1 , wherein the pressure line is substantially tubular and has first and second ends, said sample line being introduced into the pressure line in a region of the first end, with the outlet opening of the sample line arranged in a region of the second end.
9. The pressure reactor of claim 1 , further comprising a cooling system arranged in a region between the oven and the outlet opening.
10. The pressure reactor of claim 1 , wherein the pressure line is arranged beneath the outlet opening to form a fluid collection container, when the pressure reactor is operational, said fluid collection container having a sample fluid output configured as a flow limiter.
11. The pressure reactor of claim 1 , wherein the pressure line is arranged beneath the outlet opening to form a fluid collection container, when the pressure reactor is operational, said fluid collection container having a sample fluid output, and further comprising a filling-level meter arranged in the fluid collection container and operably connected to an input of a control device for controlling a discharge of the sample fluid through the sample fluid output via a valve.