Smoke online detection system

Abstract

The invention discloses a smoke online detection system which comprises a first refrigerator, a sampling pump and a second refrigerator. Overflow tanks are arranged below the first refrigerator and the second refrigerator, and the overflow tanks are respectively connected with water outlets of the first refrigerator and the second refrigerator through pipes. In the invention, the overflow tanks are arranged below the first refrigerator and the second refrigerator, and the overflow tanks are respectively connected with the first refrigerator and the second refrigerator through the pipes, so that a gas sample is condensed by the two refrigerators. When the temperature of the gas sample is lowered below a dew point, water in the gas sample turns into liquid and flows into the overflow tanks under self gravity, and meanwhile, water in the overflow tanks has a function for sealing gas. The water is drained in a mode of adopting the overflow tanks, the failure rate is greatly reduced, and the maintenance work is also reduced. As the smoke online detection system works relying on the physical property of the water, the reliability is high. The smoke online detection system does not have movable parts or easily worn parts and is free of wear.

Description

technical field [0001] The invention relates to the technical field of gas pollution detection, and more specifically, relates to an online monitoring system for flue gas. Background technique [0002] Domestic CEMS (Continuous Emission Monitoring System, smoke emission online monitoring system) monitoring technology direct extraction method accounts for a large proportion. The direct extraction system uses a special heating sampling probe to extract the flue gas from the flue, and transmits it through heat tracing, so that the flue gas does not condense during the transmission, and the flue gas is transported to the flue gas analysis cabinet for dust removal, dehumidification, etc. Then enter the analyzer for analysis and detection. A continuous flue gas emission monitoring system generally includes sequentially connected sampling probes, electric heating sampling pipelines, sample gas pretreatment systems, gas analyzers, and data processing systems. Among them, the sampl...

AI Technical Summary

Problems solved by technology

In this way, the peristaltic pump hose is a consumable part and must be replaced regularly. If the maintenance is not in place, the pump tube will age, which will cause poor drainage, which will cause water to enter the system and damage the normal operation of the gas analyzer.

[0006] Moreover, the peristaltic pump needs power supply. Due to the long-term operation of the motor, there are also life problems. Generally, the peristaltic pump motor needs to be replaced after 2 years.

Due to the need for regular maintenance of the drainage system, the amount of system maintenance is increased, and there are also disadvantages of sudden damage to the drainage peristaltic pump, causing system failure and damage to other components and instruments. Regular replacement of the peristaltic pump increases operating costs.

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