Product overview of vortex precession flowmeter
is adopted micro processing technology, features of strong functions, wide flow range, simple operation and maintenance, and convenient to install and use etc, and the main technical indexes reach the level of domestic similar products of new type of gas flow meter
Vortex precession flowmeter is widely used in petroleum, chemical industry, electric power, metallurgy, urban gas supply measuring various gas flow rate, and stable performance, accurate measurement, convenient installation, small amount of maintenance and masses of the user's consistent high praise.
Is the oil and natural gas distribution measurement and trade * * products.
Product type vortex precession flowmeter measurement object according to its different, divided into & other;
Intelligent vortex precession flowmeter & throughout;
And & other
Steam vortex precession flowmeter & throughout;
Intelligent vortex precession gas meter adopts micro processing technology, has the function of strong, wide flow rate range, simple operation and maintenance, convenient installation, main technical indexes reach the level of domestic similar products.
Can be widely used in petroleum, chemical industry, electric power, metallurgy, coal, etc all kinds of the measurement of gas.
Steam precession vortex flow meter used dual probe precession flow sensor technology, strong anti-jamming capability, high precision, no mechanical moving parts, not easy corrosion, compact structure, high reliability, good stability, small amount of maintenance.
Intelligent vortex precession flowmeter can measure all kinds of gas, and steam precession vortex flowmeter is only measuring the steam.
Working principle as the fluid passes composed of spiral vane vortex generator (
See figure 1)
Body fluid is forced to round occurred after intense rotation axis, form a spiral.
When fluid into the diffuser, vortex flow under the effect of reflux, began as a secondary rotation, form the gyro type vortex precession phenomenon.
The precession frequency is proportional to the flow size, not influenced by the physical properties and fluid density.
Detecting element quadratic spin precession frequency measured fluid, knew the traffic.
But also in the wider range of flow to obtain good linearity intelligent vortex precession flowmeter in gas pipeline installation from time to tome what requirements?
1, the vortex precession flowmeter enclosure grounding terminals must be good.
2, flow control valve should be installed on the downstream side of the meter.
3, around the flowmeter can't have a strong external magnetic field interference and the strong mechanical vibration.
4, the length of straight pipe upstream or downstream flow meter requires at least ensure the upstream is not less than 5 d, downstream of not less than 2 d.
5, in the environment of the explosion proof, dustproof, waterproof, flow meter connection ports must use explosion-proof, waterproof connectors.
6 sign before installation should be according to the flow meter, flowmeter, audit environment condition, ensure the flow parameters such as flow, pressure within the rules.
7, flow meter installed in the outdoor, should be on the upper cover, lest the rain immersed and strong sunlight and affect the flow meter of accurate measurement and service life.
8, in order to ensure the measuring accuracy of flow, straight pipe must be concentric with the flowmeter in holes, but straight pipe diameter shall not be less than the diameter of bore of flowmeter.
Be used to facilitate the installation, straight pipe diameter can be liability is greater than the inner diameter flowmeter.
If the gas being measured does not contain a larger particles or long fibers sundries, can not install the filter.
In this paper by embellish instrument technology co. , LTD. Arrange release.
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