Jiangsu DN125 Spiral Vortex Flow Meter Manufacturer

Description :

　　Jiangsu DN125 Spiral Vortex Flow Meter Manufacturer

　　1、 Overview:

　　The FH-LUX series intelligent vortex gas flowmeter adopts the latest microprocessing technology, which has the advantages of strong functionality, wide flow range, simple operation and maintenance, and easy installation and use. Its main technical indicators have reached the advanced level of similar foreign products. Widely used in industries such as petroleum, chemical, power, metallurgy, and coal.

　　2、 Main features:

　　1. The built-in pressure, temperature, and flow sensors have multiple compensation methods for users to choose from, with high safety performance, compact structure, and beautiful appearance.

　　2. On site display of temperature, pressure, instantaneous flow rate, and cumulative total amount.

　　3. By adopting a new type of signal processing amplifier and unique filtering technology, the interference signals generated by pressure fluctuations and pipeline vibrations are effectively eliminated, greatly improving the anti-interference ability of the flowmeter and making small flow rates have excellent stability.

　　4. The whole machine has extremely low power consumption and can operate for a long time with internal battery power supply, making it an ideal on-site display instrument without the need for external power supply.

　　5. The anti-theft function is reliable, with password protection to prevent parameter changes.

　　6. Equipped with two-wire and three wire 4-20mA standard current signal output, pulse output, and RS485 interface.

　　Jiangsu DN125 Spiral Vortex Flow Meter Manufacturer

　　3、 Structure:

　　1. Shell

　　It is equipped with flanges and fluid channels of a certain shape. Depending on the working pressure, the shell material can be cast aluminum alloy or stainless steel.

　　2. Converter

　　It consists of temperature and pressure detection analog channels, flow detection digital channels, as well as microprocessor units, LCD driver circuits, and other auxiliary circuits, and is equipped with output signal interfaces.

　　3. Temperature sensor

　　Using Pt100 platinum resistor as a temperature sensitive element, its resistance value corresponds to temperature within a certain temperature range.

　　4. Pressure sensor

　　The piezoresistive diffusion silicon bridge is used as the sensitive element, and its bridge arm resistance will undergo expected changes under external pressure. Therefore, under a certain excitation current, the potential difference between its two output terminals is proportional to the external pressure.

　　5. Piezoelectric crystal sensor

　　Installed at the throat near the expansion section of the shell, it can detect the frequency signal of vortex precession.

　　6. Racemizer

　　Fixed at the outlet section of the shell, its function is to eliminate vortex flow and reduce the impact on downstream instrument performance.

　　7. Vortex generator

　　Made of aluminum alloy, spiral blades with a certain angle are fixed at the front of the shell contraction section, forcing the fluid to generate strong vortex flow.

　　Jiangsu DN125 Spiral Vortex Flow Meter Manufacturer

　　4、 Installation:

　　1. There should be no strong external magnetic field interference or strong mechanical vibration around the flowmeter. Before installation, the environmental conditions should be reviewed according to its usage requirements for normal use;

　　When installing the flowmeter outdoors, there should be a cover on the upper part to prevent rainwater from entering and direct sunlight from affecting the service life of the flowmeter;

　　3. The flowmeter can be installed at any angle, and the direction of fluid flow should be consistent with the direction indicated on the housing. There should be straight pipe sections of 10DN and 5DN upstream and downstream of the flowmeter, respectively;

　　4. The flowmeter should be installed coaxially with the pipeline, and the flange screw hole connection should be parallel to the pipeline axis to prevent sealing gaskets and grease from entering the pipeline cavity;

　　5. If necessary, a filter can be installed upstream of the flowmeter to filter out particles and debris in the medium;

　　6. The casing of the flowmeter volume correction device is equipped with grounding screws, which must be reliably grounded according to the specified requirements during use, but must not share the grounding wire with the high-voltage system; When installing or testing on pipelines, it is not allowed to overlap the grounding wire of the welding system with the flow grounding wire;

　　7. During use, users are not allowed to change the connection method of the explosion-proof system or arbitrarily modify the various lead interfaces. The outer diameter of the incoming cable is 8-8.5mm, and the remaining entry holes should be plugged for sealing.

AfterSalesService :

• DN125 spiral vortex flowmeter