Wedge flowmeter, a new type of throttling differential pressure flowmeter

1、 Application medium:

1. Gas
Gas and natural gas, including high moisture natural gas and non clean natural gas containing other impurities. Air, including air containing water, solid particles, and other suspended solids.
2. Steam
Saturated steam, superheated steam.
3. Liquid
Oils, including crude oil, fuel oil, coal tar, residual oil, paraffin oil, emulsified oil containing water, and polluted oil containing water and sand. Slurry, including oil slurry, iron ore slurry, pulp, mud, coal slurry, etc. Water, including purified water, sewage, industrial wastewater, river source water containing sediment and debris, etc. Various aqueous solutions, including highly corrosive acid, alkali, salt solutions, as well as solutions that are prone to crystallization and contain a lot of suspended solids.

2、 Main features:
1. Especially suitable for measuring media with high viscosity, low Reynolds number, suspended particles or bubbles;
2. The measurement accuracy is not affected or limited by the characteristics such as the dielectric constant of the fluid medium;
3. The wedge-shaped component has a special structural design, which has a guiding effect and prevents blockage;
4. It has compensation functions for fluid viscosity changes, temperature changes, density changes, etc;
5. Anti vibration, anti impact, anti dirt, anti corrosion, explosion-proof;
6. Wedge flowmeter has bidirectional flow measurement function;
7. High measurement accuracy;
8. Simple structure, sturdy, high reliability, easy installation, low operation and maintenance costs
9. No moving parts, no wear, no need to recalibrate for long-term use.

3、 Other features:

1. Suitable for measuring mud, coal tar pitch, coal water suspension, and other high viscosity fluids;

2. At very low Reynolds numbers in pipelines (even as low as Re=500), the square root relationship between flow rate and differential pressure can still be maintained. The minimum Reynolds number of the orifice flowmeter is much larger than that of the wedge flowmeter;

3. The separately calibrated wedge flowmeter has a high measurement accuracy (up to 0.5%), and the accuracy of the uncalibrated wedge flowmeter can also reach about 3%;

4. Simple structure, easy installation, use, and maintenance;

5. It can measure corrosive media. As differential pressure measurement uses a diaphragm type double flange differential pressure transmitter, corrosive media cannot enter the pressure pipe and differential pressure transmitter. Therefore, as long as corrosion-resistant materials are used to process wedge-shaped throttling components, the instrument can measure corrosive media.

4、 Technical parameters:

1. Flow measurement range:>1:20;
2. Measuring pipe diameter: 25~1000mm (special orders can be placed if exceeding the range);
3. Measurement accuracy: Level 0.5, Level 1.6;
4. Reynolds coefficient usage range: 300~1x108;
5. Measurement of upper limit of liquid viscosity: 500MPa. S;
6. Working pressure range: ≤ 6.2MPa;
7. Installation connection method: flange connection; Welding connection;
8. Working environment temperature of flowmeter: -20-+70 ℃;
9. Relative humidity of working environment: 15-85%;
10. Power supply voltage: 24V DC;
11. Communication method: RS485.