XG-DRB Dilbar flowmeter

The XG-DRB Dearbar uniform flow meter is a new type of plug-in flow meter that uses the differential pressure principle for flow measurement and follows the Bernoulli equation: Q=KxCx root DP. It is currently internationally recognized as the most accurate, repeatable, and reliable flow meter for one-time flow detection. The simple structure, easy assembly and disassembly, low pressure loss, and low cost of use and maintenance make it an energy-saving and economical flowmeter worth promoting and using. Especially in the case of pipelines with a diameter greater than 200 millimeters, the advantages of the averaging tube flowmeter are more obvious. Widely used in industries such as power, metallurgy, and petrochemicals.

Working Principle:
The XG-DRB Dearbar constant velocity flowmeter measures flow through the differential pressure generated before and after its unique sensing probe. When fluid flows through the probe, a high-pressure distribution area is generated at the front, which is slightly higher than the static pressure of the pipeline. According to the Bernoulli equation principle, the velocity of the fluid increases as it flows through the probe, and a low-pressure distribution area is produced at the back of the probe, where the pressure is slightly lower than the static pressure of the pipeline. After the differential pressure fluid flows through the probe, vortices appear on both sides of the probe, and a partial vacuum is generated at the rear of the probe. The average high pressure in the high-pressure area is transferred to the positive pressure chamber of the differential pressure instrument through the probe high-pressure conduit; The average low pressure in the low-pressure area is transmitted to the negative pressure chamber of the differential pressure instrument through the probe low-pressure conduit. The differential pressure instrument measures the difference between the average high pressure and the average low pressure, and after a square root calculation, it reflects the magnitude of the average flow velocity of the fluid. The average flow velocity is proportional to the flow rate and can then be used to calculate the volume flow rate or mass flow rate of the fluid in the pipeline.  

Product Features:
1. Multiple application media and wide measurement range. Suitable for various fluids (gas, liquid, steam), with diameters ranging from 38mm to 15000mm, a maximum pressure of 40MPa, and a maximum temperature of 550 ° C or higher. When required, it can also guarantee ± 0.1%, especially suitable for industrial process control;
2. Simple structure and light weight;
3. Easy to install and disassemble, low cost, and can be installed and maintained online;
4. Low requirements for straight pipe sections. The requirement for the length of the straight pipe section is relatively low compared to the orifice plate, generally about 10 to 25 times the diameter;
5. Low pressure loss and significant energy saving. The unrecoverable pressure loss is 2% to 15% of the signal pressure loss, which is only one tenth of the unrecoverable pressure loss of commonly used orifice flow meters. The annual operating cost is 1/40 to 1/50 of the orifice plate;
6. Constant fluid coefficient (K), stable measurement signal, and small fluctuations;
7. High accuracy and good long-term stability;
8. The probe pressure measurement itself is anti-blocking, and the probe is designed with a single-piece dual-cavity high-strength structure;
9. Friendly human-machine interface, 360-degree rotatable LCD meter head; It can display instantaneous flow rate, cumulative flow rate, bar chart percentage, etc.                                                                         

Main application areas:
1. Measurement of primary and secondary air in power plants
2. Measurement of blast furnace gas;
3. Measurement of ethane, ethylene, natural gas, etc;
4. Measurement of gas, nitrogen, oxygen, etc;  
5. Compressed air measurement:
6. Measurement of saturated steam, high- and low-pressure steam:
7. Measurement of tap water, circulating water, etc.