With the popularity of microwave digesters, there is an increasing demand for high-throughput microwave sample pre-processing instruments. At present, most of the high-throughput microwave digesters at home and abroad adopt the design principle of automatic deflation, and use the pressure deformation of the tank cover. Pressure relief, this design has the advantages of high safety, but it also has the disadvantages of low pressure, easy deformation of the tank lid, reduced recovery rate, and insoluble samples that cannot be resolved. Under normal operating conditions, the safety relief sheet will not be broken or need to be replaced, and there are no hidden dangers such as leakage. After the digestion is completed, the pressure can be easily relieved. The temperature and pressure measurement and control device and the high-flux microwave digestion instrument turntable rotate in the same direction. The platinum resistance temperature control system is used to display and control the temperature in the digestion tank in real time. The digestion tank uses PTFE ( Polytetrafluoroethylene), resistant to high temperature, high pressure, and strong acid corrosion; easy to disassemble and fast cooling; double explosion-proof patented digestion tank; fast cooling speed, suitable for air cooling and water cooling, and high furnace cavity utilization.
The high-pressure microwave digestion instrument uses self-developed super aerospace composite fiber materials to make an outer tank that does not burst, bursts, tears, and does not shatter. Its performance indicators such as corrosion resistance, high temperature resistance, impact resistance and pressure resistance far exceed the use of imported PEEK ( Polyether ether ketone) is processed into the tank, which fundamentally solves the hidden safety hazards in the use process of the operator. Through the patented junction box technology, the turntable always rotates in one direction without stopping, no need to rotate 360 degrees back and forth, there is no pause during the rotation, and the microwave heating is more uniform; the temperature and pressure measurement and control cable of the high-flux microwave digestion instrument is very short, and there is no Any twisting, installation and disassembly is convenient; the load of the turntable motor is small, and the service life is long.
The microwave digestion instrument eliminates the accidental reaction during digestion or the horizontal burst caused by the illegal sample preparation, which causes personnel and instrument injuries, thus realizing the safety design concept of vertical blasting in a true sense. The use of international piezoelectric crystal sensing and high-precision temperature sensing improves the accuracy of pressure and temperature measurement and control; piezoelectric crystal sensing technology can completely isolate the sample from the external environment during the pressure measurement process of the main control tank, thereby It overcomes many problems such as easy leakage and sample cross-contamination of the traditional air-pipe and waterline pressure-guiding airtight interface. Real-time control and display of the pressure and pressure rise curve in the digestion tank, high-precision platinum resistance sensor, high-strength frame structure, safe and reliable explosion-proof mechanism; decompression auxiliary tank opening design, making the operation easy and simple.
