Integrated temperature compensation intelligent vortex flowmeters, vortex flowmeters dedicated saturated steam

Integrated temperature compensation intelligent vortex flowmeters, vortex flowmeters dedicated saturated steam

Product description:

Custom processing: It is Brand: Xiamen Jing Chuan
model: JC-LUGB Types of: Fluid oscillator flowmeter
Measuring range: 4m / s - 70 m / s (m3 / h) Accuracy: 0.5
Nominal diameter: DN25 - DN500 (mm) Medium: Saturated Vapor
Working pressure: 2.5 (MPa) Operating temperature: -40℃ -+150℃ (℃)
Custom processing It is Brand Xiamen Jing Chuan
model JC-LUGB Types of Fluid oscillator flowmeter
Measuring range Steam: 4m / s - 70 m / s Accuracy class 1.5, 1.0 (preferred), 0.5, 0.2 (on supply agreement)
Nominal diameter DN25 - DN500 For media Saturated Vapor
Working Pressure 2.5 MPa Operating temperature-40℃ -+150℃

Jing Chuan JC-LUGB Temperature compensation integrated Smart Vortex Flowmeter
I. Introduction:
Jing Chuan JC-LUGB type temperature compensated integrated temperature compensation integrated intelligent vortex flowmeter vortex flowmeter is a special saturated steam flow meter for measuring the mass flow rate of saturated steam through integrated temperature compensation, can be displayed saturation instant steam mass flow, total flow and temperature; steam temperature can also be set manually.
Second, the principle:
Jing Chuan JC-LUGB vortex flowmeter is spread by direct contact with fluid vortex generator, detection probe and the corresponding electronic circuits and other components. When the vertical vortex generator placed in the fluid flow through the housing, on both sides in the rear swirl alternately produce two columns (see below), this vortex is called Karman vortex. Strouhal on the basis of Karman vortex street theory proposed a velocity proportional to the frequency of Karman vortex fluid, and to the relationship between the frequency and velocity of the equation:
Where: f- vortex separation frequency (HZ); U
within u- line fluid average velocity (m / s); f = `Sr
d- vortex generating body facing the flow width; (1-1.25d / D)
D- inner diameter of the sensor housing;
Sr- Strouhal number, a dimensionless number. For certain cylindrical vortex body occurs within a certain flow range is a function of the Reynolds number in the range of the normal flow can be considered constant.
From the above equation, the flow in the vortex generator welcome width d and Strouhal number Sr is known conditions, it can be determined the average velocity of the fluid in the pipe and volume flow Qv U by measuring the vortex shedding frequency
Qv = 3600`Uπ (D / 2) 2
Fluid sensor is the number of pulses per unit volume of traffic generated by n Qv sensor meter factor called K:
K = (N / m 3)
Alternating force generated by the swirl on the detection probe, so that the internal embedded piezoelectric element generates a charge frequency signal detected by the pre-conversion processing electrical amplification, the output is proportional to the volume flow of the pulse signal, or replace the standard signal output connected with flow indicator and temperature, the pressure sensor, calculates various parameters, display and cumulative like.
Third, the product features:
Jing Chuan JC-LUGB type vortex flowmeter has the following characteristics:
Ø delicate and firm structure, no moving parts, long-term stable operation;
Ø installation is simple and flexible, easy to maintain;
Ø output signal is pulse frequency signal, high precision, zero drift;
Ø structure forms, there is ducted and plug-in, split and one-to choose from;
Ø accuracy, measurement accuracy is typically liquid is ± 1.0%, accuracy gas is ± 1.5%;
Ø Wide measurement range, at a Reynolds number of 2X10 4-7X10 6 Within the range up to 1:20;
Ø pressure loss is small, low operating costs, meaning more energy-efficient;
Ø low power consumption, battery durability, strong seismic performance;
Ø total flow can be power-down protection, protection time up to 10 years;
Fourth, the performance parameters:
• saturated steam measurement dedicated, field display instantaneous flow, total flow, temperature, pressure, etc.
The main technical parameters;
• Measuring medium: Saturated steam
• nominal diameter: DN25 - DN500
• pressure rating: 2.5 MPa
• Medium temperature: -40 ℃ - + 150 ℃
• Accuracy class: 1.5, 1.0 (preferred), 0.5, 0.2 (on supply agreement)
• Measurable flow range: Steam: 4m / s - 70 m / s
• Amplifier Selection: integrated temperature compensation intelligent vortex amplifier (current, pulse or RS485 signal output)
• Explosion levels: intrinsically safe ExiaIICT4
Flameproof ExdIICT6
• Protection: IP65
• Body Material: Stainless steel 304 (other material supply agreement)