采用高科技的全新技术，是一种差压式的流量计量仪表。 V cone flowmeter adopts new high-tech technology, which is a differential pressure flowmeter. V-cone flowmeters have been widely used and praised in the field of flow measurement for more than 20 years due to their many advantages that are incomparable with conventional differential pressure instruments. The technical staff of Jiangsu Jinhu Dongxiang Instrument Factory, a professional manufacturer of V-cone flowmeters, will introduce the structural forms of several V-cone flowmeters, hoping to help users in the selection of flowmeters.
V-cone flowmeter is also called tower-type flowmeter. The primary sensor part is how the flowmeter body is connected to the process pipeline, although the flowmeter has multiple structural forms, such as pipeline type, clamp type, butt-welding type, etc. If there is no special description in the description, the installation method is the same. Because the V-cone flowmeter has the function of rectifying the fluid flow state, the installation requirements of the primary sensor part are much looser than those of orifice plates. Because the V-cone flowmeter is a tube type, there is no strict requirement for its coaxiality and perpendicularity with the process pipeline.
节能减排举例1：某厂饱和蒸汽流量测量，管道内径257；工作绝压0.9MPa；工作温度175.35℃；密度4.655kg/m3；最大流量30t/h；常用流量20t/h。 Example of energy saving and emission reduction of V-cone flowmeter 1: Saturated steam flow measurement in a factory, inner diameter of pipe 257; working absolute pressure 0.9MPa; working temperature 175.35 ° C; density 4.655kg / m3; maximum flow 30t / h; common flow 20t / h. Orifice plate and V-cone flowmeter take the same β = 0.6. The calculation results are as follows (for the calculation formula and calculation process, see the CD-ROM data): At a common flow rate of 20t / h, the pressure loss of the orifice plate is: 14.162kPaV cone pressure loss: 6.523kPa The orifice plate has a permanent pressure loss greater than the V cone by 7.639 kPa, under the condition of conveying the same flow rate, the perforated plate consumes 11.395kW / h more than the V-cone per hour. If the current average industrial electricity cost is 0.8 yuan / (kW.h), and it is calculated based on 300 days of driving a year, only one set of orifice plate flowmeter will pay more electricity cost per year than the V-cone flowmeter: 0.8 (yuan) × 11.395 (kW) / h) × 24 (hours) × 300 (days) = 65.63 million yuan
节能减排举例2：高炉煤气，管道内径：702.4mm,工作压力（G）：12kPa，温度：70℃，当地大气压：98.39kPa，工作密度1.0326kg/m3，常用流量25000m3/h孔板和V锥取相同的β＝0.6955。 V cone flowmeter energy saving and emission reduction example 2: blast furnace gas, pipe inner diameter: 702.4mm, working pressure (G): 12kPa, temperature: 70 ℃, local atmospheric pressure: 98.39kPa, working density 1.0326kg / m3, commonly used flow rate 25000m3 / h The orifice plate and the V-cone take the same β = 0.6955. The calculation result is as follows: The pressure loss of the orifice plate under common flow is: 1.894kPaV cone pressure loss is 0.479kPa. The orifice plate is 1.415kPa greater than the permanent pressure loss of the V cone. It consumes more energy per hour under the same flow rate. 12.283kW / h. According to the industrial electricity cost of 0.8 yuan / (kW.h), calculated for 330 days of driving each year, only one set of orifice plate flow meters will pay more electricity costs per year than the V-cone flow meter: 0.8 (yuan) × 12.283 (kW / h) × 24 (hours) × 330 (days) = 77.83 million yuan. From the above calculations, it can be seen that a set of small flow meters that do not attract our attention usually has such great potential in what type of instrument to choose ( Or such a huge waste was not found) can be excavated, it can be seen that the energy saving effect of the V-cone flowmeter is very significant. In the current insufficient supply of electricity and energy in China, the use of energy-saving flow meters not only creates profits for the enterprise itself, but also conforms to the national energy-saving industrial policy