Keyword water supply; Metric error; Corrective

In industry is produced and living, to assure water supply bear allocation adds up to reason security, provide basic basis to undertake economic accounting at the same time, be in charge of the furnish on the road to detect in water supply mostly with flowmeter. In designing a process, often be fundamental choosing to match metric flowmeter with pipeline nominal diameter and average discharge, below circumstance of normal water supply, can satisfy metric precision requirement, but in running a course actually, put in various moving state of affairs, below the circumstance that often installing complete standard, appear very big metric error, create water supply unit bigger metric loss, and metric watch precision of plan classics desired result still is inside normal limits. Below is in charge of a few kinds of situations that in be being made in manage, encounter to make one analysis in water supply with respect to the author only.

The error that flowmeter of water supply of constant voltage of 1 frequency conversion measures and corrective

As the development of frequency conversion technology, the water supply enterprise of equipment of water supply of constant voltage of frequency conversion of application of water supply project is increasing, constant voltage water supply was brought to production and life special but the section report benefit of the face, it is a kind of certain development way. Be in however the water supply area of six to one of water consumption of a few day and night, use water supply of frequency conversion constant voltage, give however metric brought great influence.
My unit has area of one water supply, undertook water supply of frequency conversion constant voltage is transformed 1999. Transform after finishing, water supply unit shows user month water consumption in settle accounts sunshine relatively 15000m decreased before transforming³, (Before transforming, with water the unit uses intermittent means water supply, the user sets water tower of one constant voltage and reservoir oneself the balanced) that use water. At first water supply unit considers as user output to drop water consumption also decreased, however a few months are subsequently such still, much person relatively before use water 15000m less³/ month, little person relatively before use 10000m less³/ month, although user crop increases, water consumption also changes without what. Water supply unit just realises seriousness gradually, made admitting to observe really mixing monitor, discovered the knot evidence of the problem eventually.
What area of this water supply uses is pipeline of Dg200 water supply, metric those who choose is eddy street flowmeter, below condition of normal water supply, classics of watch plan error detects very small, be in however daily 23 when to morrow 7 when, area user production and life water consumption are decreased suddenly, classics observation, when user water consumption little at 80m
Previous12 Next