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| The annular orifice plate flow meter is a liquid discharge throttling device that can drain the bottom of the pipeline |
| 2012-4-13 13:58:21 |
是一个实现流体在边壁突然收缩的节流装置，它由一个被同轴安装在测量管中的圆盘、三脚支架和中心轴管组成。 The annular orifice flow meter is a throttling device that realizes the sudden contraction of fluid on the side wall. It consists of a disc, a tripod bracket and a central axis tube that are coaxially installed in the measuring tube. The upstream pressure measured by the pressure measuring hole for measuring the full (stagnation) pressure on the disk and the downstream pressure measured by the pressure taking hole facing downstream on the disk are transmitted to the differential pressure transmitter via the central shaft. The advantage of the annular orifice plate is that it can not only drain liquid or solid particles at the bottom of the pipeline, but also allow the gas or vapor in the liquid to be tested to pass along the top of the pipeline and exit the throttling device. For dirty fluids, there is still a danger that the pressure taking-off hole facing upstream will be blocked. The data on the correlation with the size of the pipeline are currently published very few, only some data on the measurement of clean air flow with annular orifice plates under the commonly used β value.
The annular orifice flowmeter is a throttling flow sensor developed by our company based on the standard orifice plate. Because it adopts a ring channel structure, various measured dirty media pass through the annular gap between the orifice plate and the pipe. Pass easily.
1. Measure liquid or gas containing solid particles;
2. No long straight pipe section is required, and it can work in harsh pipeline conditions;
3.Suitable for the measurement of saturated steam, compressed air, gas, furnace exhaust gas, cooling water, condensate, and various corrosive chemical solutions and various fluid media;
4. Small pressure loss and low power consumption;
5. The outflow coefficient is stable, high precision and reliability under harsh conditions;
主要技术参数： Main technical parameters of annular orifice plate flowmeter :
1. Nominal diameter: DN50 ~ DN3000
2. Working temperature: -200 ~ 450 ℃
3. Nominal pressure: -0.1 ~ 40MPa
4. Accuracy: 1.0% 1.5% 2.0%
5. Connection method: flange connection Welded connection Therefore, ring orifice flowmeters are widely used for flow measurement of dirty media.
是我公司在标准孔板的基础上研发的节流式流量传感器，由于它采用环形通道式结构，使测量的各种脏污介质在通过孔板与管道之间的环缝时可以轻松通过。 The annular orifice flowmeter is a throttling flow sensor developed by our company based on the standard orifice plate. Because it adopts a ring channel structure, various measured dirty media pass through the annular gap between the orifice plate and the pipe. Pass easily. Therefore, the annular orifice flowmeter is widely used in the flow measurement of dirty media.