Intelligent vortex flowmeter is a commonly used flow measurement instruments, with accurate measurement, stable performance, the use of flexible, high reliability, easy maintenance and so on. Vortex flowmeter in use need to pay attention to mine, especially soon to enter the rainy season and summer, the southern region will often appear lightning thunderstorms. Lightning for the vortex flow meter caused by the harm is very large. Today to specifically introduce the vortex flowmeter lightning protection method.
First of all talk about the lightning on the vortex flow meter hazards:
1, lightning through the power part of the invasion burned out the instrument.
2, lightning generated at the same time with a strong magnetic field instrumentation electronic components produce magnetic induction, and instantly generate strong voltage and current, breakdown insulation burnout instrument.
3, lightning pulse wave through the wireless network intrusion flow meter burned communication chip or instrument.
The main problems exist, the instrument is usually installed in the few people, the road is difficult to walk; hot pipeline is very long, overhead way to have buried; users are generally in the development zone, from the thermal power plant location far, , The overhead line is relatively a lightning object; urban heating is mainly hotels, bathrooms, etc., where the earth is relatively serious environmental pollution, soil electrolyte concentration is high, easy to be lightning; instrument and instrument box is usually installed outdoors. Wind and rain, easy to be rust oxidation, grounding effect is getting worse.
What are the effective lightning strikes in the use of flow meters?
1, external lightning protection. Including lightning rod, lightning belt, cited off the line, grounding and so on.
2, internal lightning protection. In the need to protect the front of the equipment to install the appropriate lightning protection device, so that equipment, lines and the earth to form a conditional equipotential body. The two complement each other, are indispensable. The external lightning protection system protects the building body from lightning, and the internal lightning protection is to prevent the induction of lightning and other forms of overvoltage intrusion equipment damage, which is outside the lightning protection can not be guaranteed. Lightning protection work is a persistent work, in the work to continue to explore and improve, improve work efficiency and measurement management level.
Good state instrumentation special reminder, in special weather, especially in the summer lightning more season, for the protection of the instrument is still very necessary to do some preventive measures, can effectively reduce the damage to the instrument, so as not to cause The necessary loss.