通过对液位控制和补水系统进行改造，配合余热利用和冷凝水回收，达到节能目的。
With the renovation of liquid level control and water supplement system, combined with steam heat recovery and condensed water reutilization, energy consumption in hotel is reduced.
为了提高竞争力，增加经济效益，目前国内外正在进行节能、降低污染以及生产装置的改造和控制系统的更新。
In order to improve the competitive ability, increase economic benefits, at home and abroad are energy saving, pollution reducing and production unit transformation and control system update.
从全新的角度，诠释了高压变频在系统应用中不对DCS和现场控制逻辑改造，即可实现节能应用的一种新方法。
Starting from a new aspect, it explained a new way to realize energy saving without retrofitting DCS and control logic at site in the application of high voltage frequency conversion.
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