Abstract: how to correctly install and maintain metal pipe flow meter scale information produced by excellent flow meter, flow meter manufacturer to offer you the quotation.
Jiang Suhou DE instrument co. , LTD is mainly engaged in standard calibration, temperature, pressure, level, flow, etc. The research and development and production of the instruments and meters, and provide solutions to automation control system of the field.
For the general electric power, petroleum, metallurgy, chemical industry, environmental protection, system.
More flow meter manufacturers choose model price quote you are welcome to inquire, here's how to correct installation and maintenance of the metal flow meter scale article details.
Thick DE meter is mainly engaged in standard calibration, temperature, pressure, level, flow, etc. The research and development and production of the instruments and meters, and provide solutions to automation control system of the field.
For the general electric power, petroleum, metallurgy, chemical industry, environmental protection, pharmaceutical enterprise production more efficient, safer and more efficient services.
Bring the instrument under the little knowledge: how to correctly install and maintain metal pipe flow meter.
A, the installation of metal tube float flowmeter
Metal tube flow meter before the process piping installation, process piping should be purging, pipe welding slag cleaning clean, prevent the pipe impurities clogging instrument, affect the normal use.
In order to guarantee the accuracy of measurement, recommended in the upstream flow meters installed 5 dn entrance straight pipe, the downstream straight pipe installation 250 mm exports.
Metal tube flow meter installed vertical and horizontal form, if it is vertical type of installation, installation of vertical degree should ensure better than 1%, if it is a horizontal form, installation levelness should ensure better than 1%.
If the medium containing solid impurities, should be between the straight pipe valves and filter;
If the medium containing ferromagnetic material, magnetic filters should be installed at upstream of metal tube float flowmeter.
Due to metal tube flow meter installed a magnetic remote transmission system, to ensure that other equipment of the magnetic field generated around does not affect the measurement result.
If measured medium is big pulsating flow or two phase flow, should be installed upstream of the flow meter buffer to eliminate or weaken the pulsation, ensure the flow of the medium is single-phase stable, at the same time, suggested that the flow meter is good use of the damping type.
Measuring gas flowmeter, is under particular pressure calibration, if the gas flow meter of export direct emissions to the atmosphere, will produce a larger pressure loss in float, cause data distortion, if such conditions, a valve should be installed in the export of flow meters, so that to set the required flow rate value.
When float above maintain calibration pressure, gas puff in the valve.
For ease of cleaning and maintenance, ensure the normal operation of production, suggest a bypass line.
The axis of the piping installation must be coaxial with flowmeter, and appropriately supported pipe to avoid vibration and reduce stress meter suffered, control valve should be installed downstream of the flow meter in measurement system.
Install lined with ptfe flow of metal tube float time, fastening flange bolt fastening and not too tight, should be symmetrical in case four fluorine deformation.
Second, the metal flow meter maintenance notice: 1.
Metal tube flow meter belongs to the precision equipment, so in the transport, installation, storage, and use process, must take put down gently, put an end to savage transportation, stress installation, put anywhere.
Make sure indicator and the relative position of the sensor can't change, when the relative position changes, will directly affect the accuracy of measurement instrument.
Metal pipe flow meter is usually needs no maintenance.
But in the process of long-term use, pipeline inevitably have a ferromagnetic material adsorption on the float, if too many impurities, will float jammed or affect measuring precision, so the flow sensors to be clean.
If at the entrance of the flow meter is equipped with magnetic filter, but also to the magnetic filter cleaning on a regular basis.
When cleaning flowmeter or filter must be unloaded from the pipe.
Of electric remote transmission and take alarm limit switch meter before use, open the cover, according to the instruction manual correct connection.
Unscrew the limit switch for alarm type of screw, the user according to the need to set limit alarm position, and tightening the screws, used after recovery.
When used for gas measurement, should guarantee the pipeline pressure is not less than five times the pressure loss, to ensure that float work stability.
Generally measuring instrument equipped with gas damper, reduce the float shocks to the largest extent.
To further ensure the stability of the float, can be in the export of flow meters installed a throttle valve or proper orifice.
Metal tube flow meter when used, should slowly open and close the valve, in order to avoid the damage of instrument.
If open flow timing, no pressure or due to the pipe system has not yet reached instrument using normal working pressure, must be slowly open the valve, until the system is normal, the instrument can use, otherwise easy to cause a pointer to beat or float suddenly hit and damage phenomenon.
Users, if be density and water will not flow at the same time, or the parameters of the gas being measured and the manufacturer shall not working state and at the same time for flow meter reading value for conversion, see correction conversion method.
Above is all there is in this article, you are welcome to inquire me manufacturer flowmeter selection, quotation, etc.
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