First, preface

Accurate measurement of the sulfuric acid (H?SO?) concentration during the sulfuric acid production process is a key step in ensuring safe operation of the unit and product quality. The traditional method of measuring sulfuric acid concentration mainly uses lye titration, but this method has obvious shortcomings: each measurement takes about 30 minutes, and the repeatability error is high. 0.2%, and must be operated and calculated by professional analysts. Therefore, it is difficult to ensure the rapid and accurate measurement of sulfuric acid concentration when the sulfuric acid plant is running, the abnormal state or the online acid concentration analyzer is faulty, which brings serious risks to the safety of production. In practice, due to inaccurate measurement of acid concentration, smoking accidents and equipment corrosion accidents often occur in the process of driving sulfuric acid equipment. In view of the importance of sulfuric acid concentration measurement in production scenarios, portable acid concentration analyzers came into being. As a special instrument designed for sulfuric acid production and quality inspection, it has become an indispensable measurement tool in the sulfuric acid industry due to its convenience, speed, high precision and wide applicability. The analyzer is easy to use and can be used efficiently, ensuring that each measurement achieves the expected accuracy and reliability.

The Portable Acid Concentration Analyzer is a high-precision instrument designed for the sulfuric acid industry for the rapid determination of sulfuric acid (H?SO?) concentrations. The instrument is compact, lightweight and easy to carry to the production site, laboratory or sulfuric acid tank farm for immediate measurement. It uses advanced non-contact sensing technology and is equipped with a measuring cup made of high-temperature and corrosion-resistant materials to ensure the accuracy and reliability of the measurement results. The equipment is mainly used for sulfuric acid concentration measurement or liquid conductivity measurement. In addition, it is also widely used in chemical, electroplating, pharmaceutical, environmental protection and other industries, especially for the determination of sulfuric acid concentration in the production process to ensure process indicators and production safety. In the field of scientific research and education, the instrument also plays an important role, providing accurate data support for academic research. About 40mL of sulfuric acid sample is required for each analysis.

Second, manual analysis of sulfuric acid

Three, portable analyzer performance

1. The measuring cup is made of tetrafluoroidal material and sealed with a threaded seal cover. After sampling, the design can effectively isolate the contact between sulfuric acid and air, prevent sulfuric acid from absorbing water in the environment, so as to avoid the occurrence of low measurement results due to water absorption.

2, portable acid concentration analyzer adopts non-contact conductivity measurement principle, which can effectively avoid the interference of dissolved sulfur dioxide in sulfuric acid on the measurement results.

3. After the measuring cup is loaded with sulfuric acid, it is sealed with thread to effectively prevent sulfuric acid leakage and ensure personal safety.

4, portable acid concentration analyzer built-in temperature compensation function, can adjust the sulfuric acid concentration according to the acid temperature in real time, to achieve the concentration of direct reading and output.

Four, use steps

1. Use the dry sampling bottle to collect the sulfuric acid required to be measured into the bottle, and ensure that it is well sealed before returning to the analysis room.

2. Take 30mL sulfuric acid sample from the sampling bottle, pour it into the measuring cup, and cover the measuring cup. Then, place the measuring cup into the measuring hole of the portable analyzer and insert the thermometer signal cable. The analyzer display will display the temperature, wait about 10 seconds, and read the value after the acid concentration has stabilized.

3. Pour the measured sulfuric acid back into the sampling bottle, then pour 20mL of the sulfuric acid to be measured into the measuring cup, cover the measuring cup, shake gently, and pour the sulfuric acid in the measuring cup back into the empty sampling bottle. Then, take another 30mL of sulfuric acid and pour it into the measuring cup, cover the measuring cup, place the measuring cup into the measuring hole of the portable analyzer, and insert the thermometer signal cable. Wait for the temperature reading on the analyzer display to stabilize for about 10 seconds before recording the acid concentration reading.

4. After all sulfuric acid measurements are completed, put the temperature protection cover and measuring cup under clean water for a few minutes. After the sulfuric acid of the cover and measuring cup are thoroughly washed, dry them with paper towels or cotton cloth.