What is the structure and principle of the sample tube with heat sampling?
The structure and principle of heat tracing sampling composite pipe are:Composite sampling with heat pipe is an important part of environmental monitoring system, which is composed of a group of corrosion resistant high performance resin duct with self regulating heating cables, constant power cable and compensation cable components within the core, an insulating layer, finally coated with flame retardant polyethylene (PE) composite and protective coat.
The flue gas online analysis system along the transmission direction of sample gas comprises: sampling probe, external heat tracing sampling pipeline, sampling pump, internal heating sampling composite pipeline and gas analyzer; sampling probe can contain internal sample gas filter to remove dust in the sample gas sampling pump; heating equipment, can keep the sample gas temperature; detection and analysis of high temperature gas sample up to 200 DEG C to gas analyzer. In the sample gas sampling probe after collection, through the external heating sampling pipeline, sampling pump, internal heat transfer to the gas pipeline sampling analyzer, sample gas into the gas analyzer and sampling probe collected sample gas uniform components and improve the temperature measurement accuracy of the sample gas content of each component in the sample gas.
Automatic temperature limiting function with tropical temperature limit, can guarantee the sampling tube to maintain a certain temperature, so as to ensure as far as possible to collect samples consistent with the initial value, and ultimately ensure that environmental monitoring system continuously and correctly collect sample gas.
