Primary Acid Concentration Analysis

In China's sulfuric acid industry, multiple sets of sulfur waste heat recovery units have suffered from serious corrosion problems due to inaccurate measurement of primary cycle acid concentration analyzer. This led to irreversible damage to key equipment such as evaporator, heater, preheater, tower pump, demister, etc., which brought huge economic losses and production interruption to related enterprises. The reason why analyzers that measure the concentration of primary circulating acid are a common problem in the industry is that primary circulating acid flows out of the diluter, which contains a lot of air. At present, all measurement techniques are unable to directly measure the concentration of sulfuric acid containing gas. In order to accurately measure the concentration of the primary circulating acid, the air in the sulfuric acid must be completely removed. Based on this analytical need, we independently developed a super-clean stable gas-liquid separator. The separator uses high-temperature corrosion-resistant materials, and applies siphon balance technology and two-stage high-efficiency vortex separation technology, which can effectively separate air-containing sulfuric acid completely, and then enter the non-contact sensor for analysis. This ensures the accuracy and stability of the measurement data.

 

Technical Characteristics

The sulfuric acid containing air is separated by ultra-clean steady-state technology to ensure that the air content of the separated sulfuric acid is less than 0.001%, so as to effectively avoid the interference of air on the measurement results. The technology has a short measurement lag time and provides stable measurement data, which helps to efficiently solve the problem of automatic regulation of dilution water addition and the input of safety interlocking.

The equipment is covered with stainless steel and equipped with thermal insulation inside to prevent the risk of acid leakage and ensure the safe use of the sensor. In addition, it is equipped with a broken line function meter, which can accurately measure at 80° The concentration of sulfuric acid at temperatures above C solves the problem of lack of compensation for sulfuric acid conductivity at high temperatures.

The system also uses a non-contact sensor to measure sulfuric acid concentration, which is easy to install and maintain, safe to use, and has a long service life.

A wide range of measurement conditions are equipped with standardized solution technologies that are proven, proven and trusted.

The sensor of the

contact acid concentration analyzer uses steady-state flow cell technology to effectively shield electromagnetic interference and ensure the stability of the flow rate, so that the measurement data remains stable.

The sensor channel of the non-contact acid concentration analyzer uses polytetrafluoroethylene (PTFE) material, which can adapt to up to 220° C temperature, while other parts are made of corrosion-resistant stainless steel.

These devices are suitable for a variety of measurement locations, including water regeneration, dry acid concentration measurement, first absorption acid concentration measurement, second absorption acid concentration measurement, finished acid concentration measurement, and acid concentration measurement in waste heat recovery systems.

Install Measuring Points

Product Performance

Selection Parameter