Multifunctional online water quality detection device

Abstract

The invention relates to a multifunctional online water quality detection device. An online analysis instrument is of a direct current supply multifunctional integrated form; roll wheels are mounted at the bottom of a box body; a first detection pipeline and a second detection pipeline are respectively connected to a sampling system; an ion exchange column and a conductivity flow cell are sequentially connected to the first detection pipeline along the water flow direction; a conductivity sensor is arranged on the conductivity flow cell; a hydrogen ion removing tank and a sodium analyzer flow cell are sequentially connected to the second detection pipeline along the water flow direction; a sodium ion sensor is arranged on the sodium analyzer flow cell; an air pump is connected to the bottom of the sodium analyzer flow cell through an air inflation pipe; the conductivity sensor and the sodium ion sensor are respectively connected to the online analysis instrument through cables; the data processing module is connected with the online analysis instrument; and a touch screen is connected to the data processing module. The multifunctional online water quality detection device has the beneficial effects that the layout is compact, the detection is rapid and accurate, detecting parameters are more, and the working is stable.

Description

technical field [0001] The invention relates to water quality detection equipment, in particular to a multifunctional online water quality detection device. Background technique [0002] The metal of thermal equipment in power plants is often in contact with water, and if the water quality is poor, it will cause metal corrosion. Corrosion not only shortens the service life of the equipment itself and causes economic losses, but also causes accidents such as pipe bursts. Poor water quality will also increase the impurities dissolved and carried by the steam, and these impurities will be deposited in the steam circulation parts, such as superheaters and steam turbines. This phenomenon is called salt accumulation. Salt accumulation in the superheater tube will cause the metal pipe wall to overheat or even burst; the valve will not close tightly due to salt accumulation; salt accumulation in the steam turbine will greatly reduce the output and efficiency of the steam turbine, a...

AI Technical Summary

Problems solved by technology

At this time, fixed online analysis instruments cannot meet the demand

The conventional method is to take samples from people to the laboratory for testing. This method takes a long time and cannot meet the needs of rapid diagnosis of water quality fluctuations; moreover, the sampling test will be polluted by carbon dioxide and dust in the air, and the temperature, pressure, and flow rate of the water samples after taking them out The change will affect the measurement and cause measurement errors. Both the American Electric Power Research Institute and the American Society for Testing and Materials recommend online detection instead of offline detection.

[0004] On the one hand, the existing conventional online analysis instruments for water quality, especially the analyzers for detecting the concentration of sodium ions, are all single-channel, can only detect one parameter, and have a single detection function; on the other hand, the existing conventional online analysis instruments , especially for analyzers that detect sodium ion concentration, the power supply is usually alternating current, so when equipped with a mobile power supply, it can only be in the form of a lithium battery or a storage battery plus an inverter. This has two disadvantages: it increases the complexity of the power supply circuit The reliability of the whole device is reduced, and the whole device will vibrate when moving on the ground, which will damage the reliability of the device; the inverter and auxiliary circuits will increase the weight and volume of the device, resulting in a reduction in the mobility of the whole device , some complex environments cannot pass through, and cannot reach the point that needs to be detected

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