供應E+H流量計/E+H總/E+H德國/E+H上海80E40-AD2SAAAAA8AD，1910年時，美國人開始了槽式流量計的研究工作，這種流量計是用來測量明溝中水流量的。1922年，帕歇爾將水槽測量改革為帕歇爾水槽。槽式流量計發展的同時，美籍匈牙利人卡門正在研究渦街理論，1911年到1912年，他提出了卡門渦街新理論。

德國E+H系列產品，E+H流量計80E40-AD2SAAAAA8AD，德國*假一賠十，上海總，質量*，價格合理，洽談詳細信息！

流量計的應用領域
　　流量測量技術與儀表的應用大致有以下幾個領域。
1、工業生產過程
　　流量儀表是過程自動化儀表與裝置中的大類儀表之一，它被廣泛適用于冶金、電力、煤炭、化工、石油、交通、建筑、輕紡、食品、醫藥、農業、環境保護及人民日常生活等國民經濟各個領域，是發展工農業生產，節約能源，改進產品質量，提高經濟效益和管理水平的重要工具在國民經濟中占有重要的地位。在過程自動化儀表與裝置中，流量儀表有兩大功用：作為過程自動化控制系統的檢測儀表和測量物料數量的總量表。
2、能源計量
　　能源分為一次能源（煤炭、原油、煤層氣、石油氣和天然氣）、二次能源（電力、焦炭、人工燃氣、成品油、液化石油氣、蒸汽）及載能工質（壓縮空氣、氧、氮、氫、水）等。能源計量是科學管理能源，實現節能降耗，提高經濟效益的重要手段。流量儀表是能源計量儀表的重要組成部分，水、人工燃氣、天然氣、蒸汽和油品這些常用的能源都使用著數量極其龐大的流量計，它們是能源管理和經濟核算*的工具。
3、環境保護工程
　　煙氣，廢液、污水等的排放嚴重污染大氣和水資源，嚴重威脅人類生存環境。國家把可持續發展列為國策，環境保護將是21世紀的zui大課題。空氣和水的污染要得到控制，必須加強管理，而管理的基礎是污染量的定量控制，流量計在煙氣排放、污水、廢氣處理流量計量方面有著不可替代的位置。 　　我國是以煤為主要能源的國家，全國有上百萬個煙囪不停地向大氣排放煙氣。煙氣排放控制是*污染的重要項目，每個煙囪必須是安裝煙氣分析儀表和流量計，組成連櫝排放監視系統。煙氣的流量沆量有很大因難，它的難度為煙囪尺寸大且形狀不規則，氣體組分變化不定，流速范圍大，臟污，灰塵，腐蝕，高溫，無直管段等。
4、交通運輸
　　有五種方式：鐵路公路、航空、水運和管道運輸。其中管道運輸雖早已有之，但應用并不普遍。隨著環保問題的突出，管道運輸的特點引起人們的重視。管道運輸必須裝備流量計，它是控制、分配和調度的眼睛，亦是安全監沒和經濟核算的*工具。
5、生物制藥
　　21世紀將迎來生命科學的世紀，以生物技術為特征的產業將獲得迅速發展。生物技術中需監測計量的物質很多，如血液，尿液等；醫藥行業對各種醫藥配方，液體制劑成分的控制流量儀表也是不和或缺的。儀表開發的難度極大，品種繁多。
6、科學實驗
　　科學實驗需要的流量計不但數量多，且品種極其繁雜。據統計流量計100多種中很大一部分是應科研之需用的，它們并不批量生產，在市面出售，許多科研機構和大企業皆設專門小組研制的流量計。
7、海洋景象形象，江河湖泊
　　這些領域為敞開流道，一般需檢測流速，然后推算流量。流速計和流量計所依據的物理原理及流體力學基礎是共通的但是儀表原理及結構以及使用前提有很大差別。                                                               德國E+H系列產品：E+H 50W1H-HC0A1AK2AAAA
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