High Precision Low Pressure Loss Integrated Stainless Steel
Target flowmeter began to be used in industrial flow measurement in 1960s, mainly to solve the flow measurement of fluids with high viscosity and low Reynolds number. It has gone through two stages of development: pneumatic meter and electric meter. DYL series intelligent target flowmeter is a new type of flow measurement instrument based on the original strain gauge target flowmeter measurement principle, using the latest capacitive force sensor as the measurement and sensitive transmission element, and using modern digital intelligent processing technology.
principle of operation
When the medium flows in the measuring tube, the pressure difference caused by its own kinetic energy passing through the choke (target) has a force on the choke, and the magnitude of the force is proportional to the square of the medium flow rate, and its mathematical expression is as follows;
F=CdAP.V2/2..................(1)
Where: F----the acting force on the spoiler (kg) Cd-1 resistance coefficient of object
A---the axial projection area of the choke on the measuring tube (mm2) P---the medium density under the working condition (kg/m3)
V-Average velocity of medium in measuring tube (rm/s)
The acting force f received by the choke (target) is transmitted to the capacitive force sensor through the rigidly connected transmission piece (measuring rod), and the capacitive force sensor generates a voltage signal output
V = KF..................(2)
Where: V-----Voltage output by capacitive force sensor (mV)
K----to-1 proportional constant,
F-----the force acting on the choke (target) (kg)
Therefore, the corresponding instantaneous flow and cumulative total can be obtained after pre-amplification, AD conversion and computer processing of this voltage signal.
Typical application
Steam category: superheated steam and saturated steam. Gases: gas, air, hydrogen, natural gas, nitrogen, liquefied petroleum gas, hydrogen peroxide, flue gas, methane, butane, chlorine, etc. Liquids: heavy oil, paraffin, asphalt, sulfuric acid, edible oil, residual oil, acetone, diesel oil, mine water, detergent, soy sauce, gasoline, silicone oil, syrup, solvent, perfume, seawater, aviation kerosene, soap ketone water, glucose, rapeseed oil acid, salt water, paste, ink, coolant, ethylene glycol, mineral oil, liquid sugar and hydrochloric acid. Additives, cleaning agents, alkaline, nitrogen, marine oil, chemical reagents, kerosene, glycerin, dyes, water, nitric acid, high-boiling organic solutions, lard, additives, alcohol, oil, ethylene, polypropylene, methyl benzene, etc.
technical parameter
| Measured medium |
Liquid; Gas; steam |
| nominal diameter |
Flange type 15-500mm |
Clip-on 15-500mm |
Plug-in65-3000mm |
|
| nominal pressure |
0.6-42MPa |
0.6-42MPa |
0.6-42MPa |
|
| medium temperature |
-200C-+500C or higher temperature |
|
|
|
| degree of accuracy |
+0.2% |
+0.5% |
+1.0% |
+1.5% |
| Range degree |
1:3(liquid) |
1:8 (liquid,gas) |
1:15 (liquid,gas) |
1:12 (steam) |
| compensation form |
Temperature compensation, pressure compensation |
| repeatability |
0.05%~0.08% |
| Power supply |
Self-contained battery in the machine (3.6V):externalpower supply 24VDC. |
Measuring tube
material |
Carbon steel; Stainless steel;lt can also be providedthrough consultation according to user's requirements. |
| Explosion-proof sign |
Intrinsically safe type (EXALLCT 4);Flameproof type (ExdllCT4) |
| the protection grades |
IP65:IP67 |
| Flange specification |
The specification of the connecting flange of flowmetershall comply with GB/T series standards, and can also bespecially processed according to user's requirements. |
Determination of flow range and caliber
1, the standard water flow measurement range table
2. Measurement Range Table of Saturated Water Vapor Flow under Working Pressure
company profile
The company has modern production equipment such as machining center and CNC machine tools, and modern testing equipment such as critical flow Venturi nozzle method gas flow standard device, standard meter method gas flow efficiency test device, temperature efficiency test device, pressure efficiency test device, dynamic balance test device, gas source sealing test machine, liquid source pressure strength test machine, etc. The company's R&D and technical team are perfect; Sales and after-sales teams are spread all over the country, and various qualifications such as product measuring instrument type approval certificate, manufacturing measuring instrument license certificate and explosion-proof certificate are complete.
Product field case
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