On-line cleaner for environment protection desulphurization PH value detector

Abstract

The invention discloses an online washing device of an environmentally-friendly desulfurization pH value detector. A sampling pipeline which is communicated to a pole cup (6) is sequentially equipped with a pressure reducing valve (1), a cooler (4) and a sampling electric control valve (8), an ultrasonic cleaner (9) is connected with the pole cup (6); structure of the cooler (4) is that cooling water is injected into an outer tube which covers an inner tube through a valve (3); and a flushing pipeline with a blow-down electric control valve (7) is arranged between the sampling electric control valve (8) and the pole cup (6). The washing device guarantees the online real-time monitoring of wet desulfurization pH values, ensures the production efficiency of the environment-friendly desulfurization, and meets high-standard environmental indexes. The device depressurizes and cools down sampling serum, which ensures the detection safety and facilitates the assembly and the disassembly of a probe of the pH value detector. The probe of the pH value detector is washed in time by ultrasonic wave so that the service life of the probe is greatly prolonged. The measured sample and wash sewage are discharged to a recovery system for further treatment, which avoids the environmental pollution.

Description

Technical field: [0001] The invention relates to a method for detecting the absorption of SO in a desulfurization tower 2 On-line cleaning device for slurry pH value detector. Background technique: [0002] Most of the existing desulfurization processes adopt wet desulfurization, that is, use alkaline slurry to absorb SO 2 , Whether the effect meets the requirements, it is very important to detect the pH value of the slurry. However, the slurry contains fine dust particles, which will pollute and block the probe of the pH value detector, and the probe will not be able to measure normally after working for a short time; The probe is directly inserted into the slurry with a temperature of 60-80°C and a pressure of 0.5-0.7Mpa. It is almost impossible to remove the electrode for cleaning, and the only way to do it is to replace the probe. There are major safety hazards in the replacement operation, and the labor intensity and difficulty are very high. Invention content: ...

AI Technical Summary

Problems solved by technology

However, the slurry contains fine dust particles, which will pollute and block the probe of the pH value detector, and the probe cannot be measured normally after working for a short time; The probe is directly inserted into the slurry with a temperature of 60-80°C and a pressure of 0.5-0.7Mpa. It is almost impossible to remove the electrode and clean it, only to replace the probe

There are major safety hazards in the replacement operation, and the labor intensity and difficulty are very high

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