Sulfuric acid cooler circulating water pH detecting equipment

Abstract

The invention relates to sulfuric acid cooler circulating water pH detecting equipment which is simple in structure and capable of giving an alarm in time. The sulfuric acid cooler circulating water pH detecting equipment is composed of a sulfuric acid cooler, a pH meter, a PLC system, an alarm, an electromagnetic valve and a detecting water circulating device; the PLC system is provided with a threshold setting unit; the electromagnetic valve is arranged between a sulfuric acid cooler circulating water outlet and a pipeline branch connected with the pH meter and connected with the signal output end of the PLC system; the detecting water circulating device is formed by sequentially connecting a recycle water pool, a recycle water pump, a circulating water pool and a circulating water pump; a pH meter detecting water outlet is connected with the recycle water pool. According to the sulfuric acid cooler circulating water pH detecting equipment, acid water is prevented from flowing into other equipment, corrosion to the other equipment and pipelines is prevented, the reaction speed and maintenance speed of a sulfuric acid cooler fault are increased, the maintenance efficiency is improved, about 100 tons of circulating water can be recycled every day through the arranged pH meter detecting water circulating device, and therefore not only is environmental protection achieved, but also benefits are created for enterprises.

Description

technical field [0001] The invention relates to the technical field of detection instruments, in particular to pH detection equipment for sulfuric acid circulating water. Background technique [0002] In the process of sulfuric acid production, the sulfuric acid cooler has been in the high-temperature concentrated sulfuric acid environment for a long time. Once the heat exchange tube leaks, if it is not found in time, the sulfuric acid cooler will be severely corroded until it is completely damaged. At the same time, the leakage of acid into the circulating water system will It corrodes other equipment and pollutes the environment. The pH meter is a simple method to detect whether the sulfuric acid cooler is leaking. However, the circulating water pH meter detects that the water process requires maintaining a flowing state. In the past, it was directly discharged into the rainwater ditch. This will not only cause waste of water, but also increase the amount of sewage dischar...

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Problems solved by technology

[0002] In the process of sulfuric acid production, the sulfuric acid cooler has been in the high-temperature concentrated sulfuric acid environment for a long time. Once the heat exchange tube leaks, if it is not found in time, the sulfuric acid cooler will be severely corroded until it is completely damaged. At the same time, the leakage of acid into the circulating water system will It corrodes other equipment and pollutes the environment. The pH meter is a simple way to detect whether the sulfuric acid

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