Thread Content
Intelligent electric control valves utilize the energy of the medium being regulated to automatically adjust and control the temperature of substances such as steam, hot water, hot oil, and gases. They can also be used to prevent overheating or in heat exchange applications. These valves feature a simple structure and are easy to operate; they offer a wide temperature adjustment range, fast response times, and good sealing performance. Additionally, they can be adjusted at any time during operation, which is why they are widely used in industries such as chemicals, petroleum, food processing, textiles, as well as in hotels and restaurants for hot water supply. The actuation method of this valve is manual, worm gear drive, pneumatic, or electric. Ordinary metal-sealed ball valves have many leakage points. Moreover, the gaps around the valve seat are often subject to wear by the medium, or the medium accumulates in those areas, which can easily lead to damage to the valve seat. Before operation, the main spool is in a semi-open position and the sensor is in its natural state. When connected to power, the main valve spool opens fully. The medium flows into the main valve body in the direction indicated by the arrow, and heats the heat storage tank via the valve core. It can directly accept signals output by industrial control instruments or computers (4-20mA DC or 1-5V DC) to control the opening degree of the intelligent electric control valve, thereby regulating parameters such as the pressure, flow rate, and temperature of the medium. It can also output a valve position feedback signal. When the temperature rises to the set value, the sensor generates a corresponding linear signal that is sent to the integrated actuator; this actuator then drives the valve stem and valve core to move, thereby closing the main valve core and stopping heating. When the temperature is below the set value, the sensor generates a linear signal that is sent to the integrated actuator, causing the valve core to open gradually and allowing the medium to flow into the heat storage tank in a parabolic pattern, thereby heating it until the set value is reached. In this way, the medium under control is kept within a set temperature range, thereby achieving the purpose of regulation.