Device for monitoring content of organic matters in circulating water in anti-explosion area on line

Abstract

The invention relates to a device for monitoring the content of organic matters in circulating water in an anti-explosion area on line. The device sequentially comprises an inlet valve, a pressure reducing valve, a monitor inlet valve, a monitor, a centrifugal pump, a check valve and an outlet valve, wherein the parts and a circulating pipeline form a monitoring loop; the monitor is arranged in an anti-explosion box; a sampling valve is arranged on a pipeline between the monitor inlet valve and the monitor; a bypass pipeline with a regulating valve is arranged at the front end of the monitor inlet valve and the front end of a centrifugal pump inlet; a pressure meter is arranged on a pipeline between the outlet valve and the check valve; and a safety valve is arranged on a pipeline between the centrifugal pump inlet and a monitor outlet. The device can monitor hydrocarbon media with more than six carbon atoms, hydrocarbons and benzene rings with unsaturated bonds, alcohols and ethers with hydrogen bonds, and the like in a circulating water system on line. The whole device is safe, has a wide monitor application range, is easy to remotely control, and is particularly suitable for monitoring the water quality of a circulating water pipeline in a petrochemical enterprise on line and timely determining the leakage of a water cooler.

Description

technical field [0001] The invention relates to an online monitoring device for the content of organic matter in circulating water, which belongs to the technical field of measuring the content of organic matter in circulating water in explosion-proof areas of petrochemical enterprises. Background technique [0002] Because there are a lot of water coolers in petrochemical enterprises, the demand for circulating water is huge. During the circulating heat exchange process, the circulating water needs to be returned to the water plant for treatment to discharge excess heat, and reagents are added to control its turbidity, ion content and COD, and the treated circulating water is returned to the heat exchanger. In the circulation process, there are a large number of pipelines connecting the water plant and the water cooler. Most of these pipelines are outdoors, have a certain pressure, and are in flammable and explosive areas. [0003] Leakage of water coolers is a common prob...

AI Technical Summary

Problems solved by technology

The leakage of organic matter in the water cooler will cause the following problems: (1) Increase the cost of sewage treatment in the water plant. If it is not found in time, it will be necessary to replace a large amount of fresh water and add a large amount of antiseptic, bactericidal and other chemicals. The circulating water system will take a month or even It will take several months to gradually stabilize and seriously affect normal production work; (2) bring serious safety hazards to production, such as safety accidents will cause huge economic losses

However, due to the particularity of circulating water pipelines in petrochemical enterprises, they need to work outdoors and under explosion-proof conditions, and the pipelines themselves are under pressure. However, the existing online monitoring equipment such as ultraviolet spectrophotometers has pressure restrictions, and the equipment itself cannot be explosion-proof. Can not be used in low temperature environment, so that these devices can not be directly applied to the monitoring of circulating water in petrochemical enterprises

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