In the water conservancy industry, critical instrumentation devices such as pressure transmitters, submersible level transmitters, temperature transmitters, electromagnetic flowmeters, and pressure switches provide indispensable technical support for water resource management, flood control, water supply safety, and ecological protection through real-time monitoring and precise control.
In hydraulic engineering facilities such as water conveyance pipelines, pumping stations, and sluice gates, pressure transmitters ensure the stable operation of water delivery systems by continuously monitoring internal pressure changes. For example, in long-distance water diversion projects, abnormal pressure fluctuations can quickly pinpoint pipeline leaks or blockages, preventing pipe bursts or equipment damage caused by pressure imbalances, thereby significantly improving water delivery efficiency and safety. Differential pressure transmitters are commonly used in filtration systems or gate water level monitoring. By measuring the pressure difference across filter screens or upstream/downstream of gates, they accurately assess filter clogging levels or water level differentials, providing scientific guidance for equipment maintenance, gate operation adjustments, and energy consumption optimization to extend facility lifespan.
For accurate positioning (up to 0.02°) of the cylindrical sections of radial gates.
In water level monitoring, submersible level transmitters, with their corrosion-resistant and interference-resistant characteristics, are widely deployed for long-term monitoring of reservoirs, rivers, and lakes. Their submerged design directly captures underwater pressure data, converting it into real-time liquid level height measurements. This offers highly reliable data for flood warning, water storage scheduling, and drought response decisions. For instance, during flood seasons, real-time transmission of water level data enables authorities to activate flood discharge plans in advance, minimizing the risks of waterlogging disasters. Meanwhile, temperature transmitters play a vital role in ecological water diversion and agricultural irrigation by monitoring water temperature changes. They ensure irrigation water meets crop growth requirements or maintains suitable habitats for aquatic life, preventing ecological imbalances caused by abrupt temperature shifts.
In flow measurement and water supply management, electromagnetic flowmeters, with their non-obstructive design and high precision, serve as core equipment in water supply networks and wastewater treatment plants. Utilizing the principle of electromagnetic induction, they measure flow velocity and volumetric flow rates, delivering accurate data for plant scheduling, leak detection, and water usage statistics. This supports efficient water resource allocation and cost control. For example, in urban water supply systems, electromagnetic flowmeters rapidly identify pipeline leakage zones, reducing resource waste and economic losses caused by seepage.
Additionally, pressure switches act as safety "gatekeepers" in hydraulic systems, integrated into pumping stations, water treatment equipment, and pressure vessels. When pressure exceeds preset thresholds, pressure switches automatically trigger power-off protection or alarm mechanisms, preventing equipment failures due to overloads or abnormal pressure surges, thereby safeguarding personnel and infrastructure. For instance, in deep-well pump control systems, pressure switches monitor pump pressure in real time, avoiding damage from dry runs or overloads while reducing maintenance costs.
In summary, these instrumentation devices form a comprehensive monitoring network spanning from water source management to end-user supply in the water conservancy industry. Through data collection, intelligent analysis, and automated control, they enhance water resource utilization efficiency, strengthen flood and drought resilience, and propel hydraulic engineering toward digitalization and intelligence. This lays a solid foundation for achieving sustainable development goals in water management and ecological conservation.