It has the advantages of simple installation, small pressure loss, high strength, no wear and no leakage, and is an ideal product to replace orifice flowmeter. Plug-in air flowmeter can be widely used in industrial and mining enterprises to measure the flow of blast furnace gas, compressed air, steam and gas. 1, the unique internal quadratic average structure provides high accuracy (reading 1%) and high repeatability (0. 1%).

2. The outer impact tube is made of a whole piece of material, which does not need to be welded. Naturally, it has the highest strength than similar products welded with double-body structure, and it is also convenient to choose materials with high temperature resistance and corrosion resistance.

3. The hexagonal stable structure of honeycomb produces a unique beam distribution shape, which ensures the stability of low-voltage signals, produces a higher pressure difference than similar products, and improves the range ratio.

4. Suitable for square or rectangular pipes.

5. In view of the inevitable blockage problem of similar products when measuring dirty media, there are online extraction or manual and automatic purging schemes and devices to realize maintenance without stopping production.

6. The integrated structure (pressure equalizing pipe+three valve groups+temperature and pressure compensation+transmitter) is convenient to use.

7, the pressure loss is small, the energy consumption is low, and the energy-saving effect is remarkable. 1, specification: dn50-dn5000 (mm); Insert type: DN 500-DN 5000 (mm);

2. Measurement accuracy: 6.0%; Repeatability: 0.1%;

3. Scope: Volume flow:10:1; Mass flow: 8:1;

4. Working pressure: it is not recommended that the function type of the balance pipe: ≤ 20 MPa; The average velocity tube can be proposed as follows: ≤10 MPa;

5. Fluid temperature: ≤ 450℃;

6. Medium viscosity: ≤30CP (equivalent to heavy oil);

7. Material: A Niu Ba sensor, three-valve group, stainless steel (optional); Main pipe and flange: stainless steel or carbon steel (optional); When the fluid flows through the probe, a high pressure distribution area is generated in front of the probe, and the pressure in the high pressure distribution area is slightly higher than the static pressure of the pipeline. According to the principle of Bernoulli equation, when the fluid flows through the probe, the velocity increases, resulting in a low pressure distribution area at the back of the probe, and the pressure in the low pressure distribution area is slightly lower than the static pressure of the pipeline. After the fluid flows out of the probe, a local vacuum is generated on the back of the probe, and vortices appear on both sides of the probe. The cross-sectional shape, surface roughness and the position of low-pressure shunt hole of the average velocity and flow probe are the key factors that determine the performance of the probe. The stability and accuracy of low-voltage signals play a decisive role in the accuracy and performance of the average speed probe. The flow probe can accurately detect the average pressure difference caused by the average velocity of the fluid. The flow probe has several pairs of pressure holes, which are arranged in high and low pressure areas according to certain standards, which makes it possible to accurately measure the average flow.