Steam boiler system with intelligent blowdown benchmark data control function

Abstract

The invention provides an automatic boiler control system. The automatic boiler control system performs automatic control according to the quantity of steam generated by a boiler and the quantity of water input into the boiler, sewage of the boiler is discharged periodically, a steam pocket further comprises a water quality analyzer which is used for measuring the quality of water in the steam pocket, the water quality analyzer is in data connection with a monitoring and diagnosing controller to receive measured data, and the boiler also has the function of automatically correcting benchmark data according to the quality of water in the steam pocket. As the boiler further has the automatic benchmark data correction function and can automatically correct the benchmark data according to the detected water sewage disposal situation, so that the regulation and control accuracy is guaranteed.

Description

technical field [0001] The invention belongs to the field of steam boilers and belongs to the field of F22. Background technique [0002] When the steam boiler is in operation, the boiler water is concentrated as the steam is produced. When the salt concentration rises to a certain level, the water in the pot will foam, and steam and water will rise together, a large amount of water will be carried in the steam, and a serious false water level will be caused, making the control of the furnace condition unstable. Therefore, the salt concentration of boiler water must be controlled to ensure steam quality and boiler operation safety. [0003] my country has national standards for the water quality of industrial boilers. For example, in GB1576-2001, for steam boilers with a pressure of 1.6-2.5Mpa and superheaters, it is stipulated that the dissolved solids concentration (TDS) of the boiler water shall not exceed 2500mg / L. Among them, the dissolved solids can be approximated a...

AI Technical Summary

Problems solved by technology

For example, 201510601501X automatically discharges sewage according to the steam-water ratio of the boiler, but the existing sewage discharge method is to automatically open the sewage valve when a certain parameter reaches a certain level, and close the sewage valve when a certain parameter drops to a certain low limit

Although this intermittent automatic sewage discharge method is improved compared with manual timed sewage discharge, the salt content always fluctuates between high and low limits, and because of the hysteresis of data control, there is still a certain amount of excessive discharge or insufficient discharge, which is not the best. Excellent pollution control scheme

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