High voltage intelligent high temperature voltage level gauge boiler level gauge

NegotiableUpdate on 01/20

Model

Nature of the Manufacturer: Producers

Product Category

Place of Origin

Online Consult

Overview

(1) There is a protective cylinder inside the liquid level gauge cylinder, which can effectively prevent the impact of airflow and water flow on the sensor. At the same time, it can avoid measurement data fluctuations caused by severe water agitation. At the top of the $r $n (2) sensor, there is a soda water separation device to prevent water from hanging on the sensor surface and causing measurement errors. (3) The sealing part has a piston type structure, and the greater the pressure, the tighter the seal. $r $n (4) inverted structure, firstly, keeps the electrical part in a low-temperature zone, which can effectively extend the service life of the electrical appliance; Secondly, keep the sealing area in a low-temperature zone to ensure long-term reliability of the seal.

Product Details

Basic measurement principle:The protective tube and probe inside the measuring cylinder form a coaxial capacitor with a gap between them. The water and steam from the boiler enter this gap as the dielectric of the capacitor. Due to the large difference in dielectric constant between water and steam, the high and low water levels change the capacitance of the capacitor, which directly reflects the change in liquid level height. Process this change through circuits and programs, and output 4-20mA data corresponding to the liquid level.

Automatic calibration principle:This product uses a combination of 5 sets of capacitive sensors: the metal measuring cylinder of the liquid level gauge has**Edge sleeve,There are 5 metal probes distributed from bottom to top in the insulation sleeve, which are connected to the circuit board with 5 leads respectively. The metal probes and measuring cylinder form 5 sets of capacitive sensors. The middle three groups of five capacitive sensors are distributed between the vapor and liquid phase ports, participating in measurement and automatically compensating for changes in water and steam parameters. The upper and lower sets of capacitive sensors are respectively located at the upper part of the gas phase port and the lower part of the liquid phase port, participating in the update of zero and full point data of the liquid level gauge, replacing external commands to achieve automatic calibration.

Measures to reduce the liquid level difference between the level gauge and the boiler body:There is a steam condensation chamber on the upper part of the measuring cylinder of the liquid level gauge. When steam enters the condensation chamber from the vapor phase port, condensed water is generated, and heat is released to heat the water at the lower part of the measuring cylinder. The water at the lower part flows back to the boiler body from the liquid phase port, and so on. This continuous circulation ensures that the temperature and density of the liquid level gauge and the water in the boiler body are always consistent, thereby maintaining the same liquid level height and ensuring accurate measurement.