Industrial environmental monitoring instruments

With the rapid development of industrialization, the construction and operation of chemical plant installations have become an important force in promoting economic development. However, the chemical production process generates a large amount of exhaust gas, wastewater and solid waste, causing serious pollution to the environment. In order to protect the environment and people's health, environmental monitoring in chemical plant installations is particularly important. This paper will introduce the working principle and operation method of environmental monitoring in chemical plants.

Working principle

The working principle of environmental monitoring can be divided into two aspects: real-time monitoring and sampling monitoring.

1. Real-time monitoring

Real-time monitoring is the real-time monitoring of emissions of waste gas, waste water and solid waste through sensors and monitoring instruments installed in chemical plants. Commonly used sensors are Temperature And Humidity Sensor, Pressure Sensor, Odor detection sensor, etc. These sensors and monitoring instruments can measure and record key parameters, such as temperature, humidity, pressure, flow rate, pH, concentration and so on. Real-time monitoring can detect abnormalities in time and take timely measures to adjust and deal with them in order to minimize the pollution of the environment.

2.Sampling monitoring

Sampling monitoring is done by collecting samples of waste gas, waste water and solid waste and sending them to the laboratory for analysis and testing. The key to sampling monitoring lies in the accuracy of sampling and the representativeness of the samples. When sampling, it is necessary to choose appropriate sampling points and sampling time, and adopt appropriate sampling instruments and methods to ensure the accuracy and reliability of sampling. After sampling, samples need to be pre-treated and preserved to ensure the accuracy of laboratory analysis.

Operation Methods

Environmental monitoring in chemical plant installations needs to be carried out in strict accordance with operating procedures to ensure the accuracy and reliability of the monitoring results. The following will introduce a few common operating methods.

1. Installation and maintenance of industrial environmental monitoring instruments

The installation location of industrial environmental monitoring instruments needs to be selected according to specific conditions to ensure the comprehensiveness and accuracy of monitoring. During installation, care should be taken to avoid sources of interference and prevent damage. After installation, calibration and commissioning are required to ensure the accuracy of the sensors and monitoring instruments. Regular maintenance and upkeep is also important, including cleaning, calibration and replacement of damaged parts.

2. Selection of Sampling Points and Sampling Methods

The selection of sampling points needs to be reasonably determined according to the characteristics and emissions of exhaust gas, wastewater and solid waste. Sampling points should be representative and avoid sources of interference at the sampling point. Sampling needs to use appropriate sampling instruments and methods, such as adsorption tubes, water sampling bottles, solid waste sampling containers. Sampling should pay attention to avoid contamination and sample preservation.

3. Laboratory analysis and testing

Samples after sampling need to be sent to the laboratory for analysis and testing. Laboratory analysis and testing methods are selected according to specific monitoring requirements and sample characteristics. Common methods include gas chromatography, liquid chromatography, mass spectrometry, atomic absorption spectrometry and so on. Laboratories are required to analyze and test in strict accordance with operating procedures to ensure the accuracy and reliability of the results.