JY-LUGB temperature and pressure compensation vortex flowmeter is mainly used for flow measurement of industrial pipeline medium fluid. Such as gas, liquid, vapor and other media.
It is characterized by small pressure loss, large measuring range, and high accuracy. It is hardly affected by fluid density, pressure, temperature, viscosity and other parameters when measuring volume flow under working conditions. There are no movable mechanical parts, so the reliability is high and the maintenance is small. The instrument parameters can be stable for a long time. This instrument adopts piezoelectric stress sensor, which has high reliability and can work in the working temperature range of -10℃~+300℃. It has analog standard signal and digital pulse signal output. It is easy to use with digital systems such as computers. It is a relatively advanced and ideal flow meter.
The vortex flowmeter is a new type of flowmeter for fluid flow measurement in closed pipelines based on the Karman vortex principle. Because of its good media adaptability, it can directly measure the volume flow of steam, air, gas, water, and liquid without temperature and pressure compensation. Equipped with temperature and pressure sensors, it can measure the volume flow and mass flow under standard conditions, which is throttling. The ideal substitute product of type flowmeter.
Notes on Environmental Installation of Folding Vortex Flowmeter Sensor:
The environmental impact on the sensor mainly has the following aspects:
(1) The high temperature environment causes problems such as melting of the coating material, opening of the solder joints, and structural changes in the stress in the elastomer. For sensors that work in high temperature environments, high temperature resistant sensors are often used; in addition, heat insulation, water cooling or air cooling must be installed.
(2) The influence of dust and humidity on the sensor caused by short circuit. Under these environmental conditions, a sensor with high airtightness should be selected. Different sensors have different sealing methods, and their airtightness is very different.
Temperature and pressure compensation vortex flowmeter
Temperature and pressure compensation vortex flowmeter
Common seals include sealant filling or coating; rubber gasket mechanical fastening and sealing; welding (argon arc welding, plasma beam welding) and vacuum nitrogen filling sealing.
From the perspective of sealing effect, welding and sealing is the best, and filling and coating sealant is the worst. For sensors that work in a clean and dry environment indoors, glue-sealed sensors can be selected. For some sensors that work in a humid and dusty environment, you should choose diaphragm heat seal sealing or diaphragm welding sealing and extraction. Vacuum nitrogen-filled sensor.
(3) In a highly corrosive environment, such as damp or acid causing damage to the elastic body or short circuit of the sensor, the outer surface should be sprayed or stainless steel cover, which has good corrosion resistance and good airtightness. sensor.
(4) The influence of electromagnetic field on the sensor output disturbance signal. In this case, the shielding of the sensor should be strictly checked to see if it has good electromagnetic resistance.
(5) Flammable and explosive not only cause thorough damage to the sensor, but also pose a great threat to other equipment and personal safety. Therefore, sensors that work in flammable and explosive environments have higher requirements for explosion-proof performance: explosion-proof sensors must be selected in flammable and explosive environments. The sealed housing of such sensors must not only consider its airtightness, but also Consider the explosion-proof strength, as well as the waterproof, moisture-proof, and explosion-proof properties of the cable leads.