Novel on-line laboratory microwave digester

Abstract

The invention discloses a novel on-line laboratory microwave digester, and relates to the field of on-line guardless water quality monitoring. The novel on-line laboratory microwave digester comprises an instrument body, a peristaltic pump, a touch control screen, a pipeline connector, a cooling pump, an air pump, a pressure sensor, a microwave digestion module, an electromagnetic valve, a relay tank, a cooling tank and a PLC (Programmed Logic Controller), wherein the peristaltic pump, the touch control screen and the pipeline connector are arranged on a front side surface plate of the instrument body; the PLC, the relay tank and the cooling tank are arranged inside the instrument body; and the cooling pump, the air pump, the pressure sensor, the microwave digestion module, the electromagnetic valve and the peristaltic pump which are controlled by the PLC are further connected with the touch control screen. Due to control of the PLC, intelligence is achieved. By adopting the frequency-variable microwave digestion module of completely new design, the temperature inside a reaction tank is dynamically controlled through variable frequencies, and furthermore the energy is saved.

Description

technical field [0001] The invention relates to the field of online unmanned monitoring of water quality, in particular to a novel laboratory online microwave digestion instrument. Background technique [0002] At present, China's economy is developing rapidly. However, while the economy is prosperous, the ecological environment has also been damaged to a certain extent. Especially, the water quality of oceans, lakes, and rivers is seriously polluted. The water environment has become the focus of attention of the country and the people. Under this background, the construction of water environment automatic monitoring system is proposed. However, the electric furnace or digestion microwave oven used in the existing laboratory water sample digestion device has the following disadvantages: 1. It cannot monitor and control the digestion temperature of the water sample in real time; 2. It cannot monitor the pressure in the reactor, which has potential safety hazards ; 3. It can ...

AI Technical Summary

Problems solved by technology

However, the electric furnace or digestion microwave oven used in the existing laboratory water sample digestion device has the following disadvantages: 1. It cannot monitor and control the digestion temperature of the water sample in real time; 2. It cannot monitor the pressure in the reactor, which has potential safety hazards ;3. It can only be digested in batches, not continuously; 4. The intelligence level of the digestion instrument is low

Therefore, the existing digestion device cannot meet the requirements of long-term unattended use

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