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technical article
Glass tube rotor flowmeters are often used in expensive media according to their measuring elements.
2012-4-16 15:44:36

是一种变面积式流量计,用于检测通径100mm以下封闭管道中液体或气体的瞬时流量的现场指示型仪表,广泛应用于化工、石油、医药、食品及国防科研等部门。 The glass tube rotor flowmeter is a variable area flowmeter. It is a field-indicating instrument used to detect the instantaneous flow of liquid or gas in closed pipelines with a diameter of less than 100mm. It is widely used in chemical, petroleum, pharmaceutical, food and national defense research department.
DK800S glass rotor flowmeter This series of flowmeters are manufactured by absorbing the proprietary technology and equipment of KROHNE, Germany. It can be equipped with a sophisticated needle-shaped flow regulating valve, which is suitable for the measurement and adjustment of small flow; it can be easily replaced without removing the pipe and the float; it can be connected with a hose or a metal pipe. The float material is agate or 0cr18Ni12Mo2Ti. The DK800S-2 with a nominal diameter of 2mm can measure and control very small flows.

的应用领域及发展状况:玻璃管转子流量计结构简单, 玻璃管转子流量计.使用方便,缺点是耐压力低,有玻璃管易碎的较大风险;适用于小管径和低流速;压力损失较低又称定排量流量计,简称PD流量计,流量仪表中是精度最高的一类。 Application field and development status of glass tube rotor flowmeter: The structure of glass tube rotor flowmeter is simple, glass tube rotor flowmeter is easy to use, the disadvantage is low pressure resistance, there is a greater risk of glass tube fragility; it is suitable for small diameter And low flow rate; low pressure loss, also known as fixed displacement flow meter, referred to as PD flow meter, the flow meter is the highest accuracy type. The mechanical measuring element is used to continuously and continuously divide the fluid into a single known volume part, and the total volume of the fluid is measured according to the number of times the measuring chamber is repeatedly filled and discharged. Can be divided into elliptical gear flowmeter, scraper flowmeter, double rotor flowmeter, rotary piston flowmeter, reciprocating piston flowmeter, disc flowmeter, liquid-sealed drum flowmeter, wet gas meter and membrane gas meter, etc. . Glass tube rotor flowmeters are classified according to their measuring elements. They are often used for total measurement of expensive media (oil, natural gas, etc.). Glass tube rotor flowmeters, differential pressure flow meters, and float flowmeters are ranked as the three most used flowmeters. In 1990, the output (excluding domestic gas meters) was estimated to be 340,000 units, and glass tube rotor flowmeters are industrially developed In recent years, the sales of PD flow meters (excluding domestic gas meters and domestic water meters) accounted for 13% to 23% of flow meters; about 20% of the country. Among them, oval gear type and waist wheel type accounted for about 70% and 20% speed type. The main type of flowmeter is a glass tube rotor flowmeter. A meter that uses a multi-blade rotor (turbine) to sense the average flow velocity of a fluid, and derive the flow rate or total amount from it. Can also be made monolithic. Generally, it consists of two parts: a sensor and a display. As one of the ten types of flowmeters, turbine flowmeters and volumetric flowmeters, Coriolis mass flowmeters are called three types of flowmeters with the best repeatability and accuracy. Products. Its products have developed into a multi-variety, multi-series mass production scale. High accuracy, among all flowmeters, it is the most accurate flowmeter; large-caliber meters are mostly used in water supply and drainage projects; small- and medium-caliber meters are often used in high-demand or difficult-to-measure applications, and glass tube rotor flowmeters have a wide range of applications. Air outlet cooling water control, paper industry measures pulp and black liquor, strong corrosive liquid in chemical industry, non-ferrous metallurgy industry's pulp; small and small calibers are often used in places with health requirements such as pharmaceutical industry, food industry, biochemistry. The fluid is alternately separated on both sides of the generator to release two series of regularly staggered vortex meters. The glass tube rotor flowmeter is a non-streamline vortex generator placed in the fluid.

按频率检出方式可分为:应力式、应变式、电容式、热敏式、振动体式、光电式及超声式等。 The glass tube rotor flowmeter can be divided into stress type, strain type, capacitive type, thermal type, vibrating body type, photoelectric type and ultrasonic type according to the frequency detection method. But its rapid development, glass tube rotor flowmeter is the youngest type of flowmeter. It has become a universal type of flowmeter.