一批新型计量仪表已由大庆油田设计院研制成功，并于1994年通过大庆石油管理局的鉴定。一、DN25、PNZSMPa热水流量计该流量计主要用于油田油井生产过程中的掺热水计量，也可用于其它高温液体的计量。其核心部件叶轮及叶轮盒采用了耐高温、耐腐蚀性强的材料制做，从而使该流量计 A number of new measuring instruments have been successfully developed by Daqing Oilfield Design Institute and passed the appraisal of Daqing Petroleum Administration Bureau in 1994. First, DN25, PNZSMPa hot water flowmeter The flowmeter is mainly used in the oil well production process of hot water metering, but also can be used for other high temperature liquid measurement. The core components of the impeller and the impeller box using a high temperature, corrosion-resistant materials to make, so that the flow meter