Recommendations for Liquid Chlorine Storage Tank Application
Instrument Selection: Select an 80GHz FMCW radar level gauge specifically designed for highly corrosive environments. The material of the contacting components must meet chlorine corrosion requirements (e.g., Hastelloy C276), and the flange sealing rating must comply with specifications.
Installation Design: Vertical top mounting is preferred to ensure beam coverage of the liquid surface. If bypass pipe installation is required, ensure the bypass pipe has a sufficient inner diameter (typically ≥DN150), smooth inner wall, and no necking or protrusions at the connection with the storage tank.
Parameter Configuration: Accurately set the dielectric constant, reference air height, and filtering parameters according to the characteristics of liquid chlorine (low dielectric constant) and the tank's operating conditions (pressure, temperature).
Signal and Integration: Output 4-20mA HART signals and/or digital communication signals (e.g., Modbus, Profibus PA) to the DCS system. Integrate critical liquid level signals into the SIS system for high/low level interlock control.
Safety certification: The instrument must have explosion-proof certification (such as Ex ia IIC T6 Ga) and SIL certification (such as SIL 2) applicable to the installation area, and meet functional safety requirements.
Solution
Faced with stringent requirements, YIGEQI's 80GHz Frequency Modulated Continuous Wave (FMCW) radar level gauge, with its superior performance, has become the ideal solution for non-contact safety monitoring of liquid chlorine storage tanks:
1.Minimal Beam Angle (< 3°)
Precise Focusing: Based on a self-developed CMOS millimeter-wave RF chip, achieving a more compact RF architecture, higher signal-to-noise ratio, and smaller blind zone.
Near-Tank Wall Measurement: Significantly reduces the impact of false echoes, ensuring clear and stable liquid level echo signals.
2. Millimeter-Level High Precision
80GHz high frequency combined with FMCW technology achieves millimeter-level resolution (accuracy up to ±1mm), HART7 communication protocol, meeting the requirements for high-precision metering and safety control of liquid chlorine.
Accurately reflects minute liquid level changes, providing reliable input for DCS/SIS systems and ensuring timely and accurate interlocking actions.
3. Superior Anti-Interference Capability
Fully sealed corrosion-resistant design and SIL2 safety certification, lightning and explosion-proof, unaffected by complex operating conditions such as liquid level fluctuations, foam, steam, and dust.
Advanced signal processing algorithms can identify and filter false signals, ensuring the authenticity and reliability of data from liquid chlorine storage tanks under various operating conditions.
4. Non-contact Measurement
Advanced non-contact measurement technology detects level by emitting microwave pulses, eliminating the need for direct contact with the measured medium. This completely eliminates the leakage risk caused by seal failure in traditional mechanical instruments (such as steel strip level gauges).
Installation does not require deep penetration into the container, and calibration can be completed via software, reducing maintenance frequency and operational safety risks.
