Understand Electric Temperature Control Valves from This Guide

 
Electric temperature control valves are highly efficient automated temperature control devices that utilize a standard 220V power supply to precisely regulate and control the temperature of media such as steam, hot water, thermal oil, and gases using the energy of the medium itself. They are primarily applied in hot water supply systems in industries such as chemical, petroleum, food, and light textile. Due to their simple structure, convenient operation, rapid response, and reliable sealing performance, electric temperature control valves have become indispensable equipment in these fields.

Main Features

 
Electric temperature control valves possess a series of notable features that make them particularly outstanding in various temperature control applications, mainly reflected in the following aspects.
 
High Precision Control: They can achieve precise control of the medium temperature, ensuring that the temperature is maintained within the set range, enhancing the stability of the production process.
Easy Operation: The temperature setting operation is intuitive and easy to understand, with a flexible and convenient adjustment process, allowing users to quickly adjust the temperature according to actual needs.
Simple Structure: Composed of an electric actuator, control valve body, temperature sensor, and temperature controller, the design is concise, with low maintenance and operation costs.
Rapid Response: With a quick response time, it can rapidly adjust the temperature of the medium, adapting to dynamically changing process requirements.
Reliable Sealing: Adopting high-quality sealing materials and designs ensures no leakage during operation, safeguarding the safety and stability of the system.
Compact Size and Lightweight: The compact design facilitates installation in environments with limited space, reducing the difficulty of installation and maintenance.

Structure and Working Principle

 
The structure and working principle of electric temperature control valves are designed to provide efficient temperature control in various industrial applications. Here is a detailed introduction to their main components and working principles.
 
Control Valve: Used to regulate the amount of medium flowing through the valve to achieve temperature regulation.
Electric Actuator: Adjusts the valve opening according to the signal from the temperature sensor to ensure the medium temperature is maintained at the set value.
Temperature Sensor: Monitors the medium temperature in real-time and transmits the measured temperature signal to the control system.
Temperature Controller: Sets the target temperature and processes signals from the temperature sensor to drive the electric actuator to adjust the valve.
Electric temperature control valves come in two types: heating and cooling, as detailed below:
 
Heating Type: Initially, the main valve core is in a semi-open position. After power is connected, the valve core fully opens, allowing the medium to flow through the main valve body into the heat storage box for heating. When the temperature reaches the set value, the temperature sensor generates a signal that drives the actuator to close the valve core and stop heating. When the temperature drops below the set value, the actuator gradually opens the valve core, allowing the medium to flow back into the heat storage box for heating until the temperature reaches the set value.
Cooling Type: Similar to the heating type, but the action and control method of the valve core are opposite, suitable for occasions that require cooling. The control system adjusts the valve opening according to changes in the medium temperature to achieve cooling.

Installation and Maintenance

 
To ensure that electric temperature control valves perform optimally in practical applications, correct installation and regular maintenance are crucial. Here are the installation and maintenance guidelines for electric temperature control valves to help users achieve the best operating results.
 
Pre-installation Check: Before installation, check whether the valve parts are intact, ensuring there are no missing parts or looseness. Thoroughly clean the pipeline to ensure the medium flow direction is consistent with the arrow on the valve body.
Installation Location: Choose an installation location with minimal vibration and impact. When the valve weight is considerable, a fixed support frame is required. The installation site should consider the convenience of operation and maintenance.
Bypass Manual Valve: To keep the system running in case of automatic control system failure or maintenance, a bypass manual valve should be set up. When repairing and using the manual valve, first close the shut-off valves before and after the valve.
Installation Requirements: The valve should be fully immersed in the medium being controlled and maintain a horizontal or upwardly inclined installation state. The bending radius of the capillary tube should not be less than 75mm, and folding or twisting is strictly prohibited. To facilitate on-site monitoring and temperature setting, a pressure gauge and thermometer should be installed before the valve.

Application Fields

 
Electric temperature control valves are widely used for temperature control of various liquids, gases, and steam, especially in cooling systems that require precise temperature control. Their main application fields include:
 
Chemical Industry: Used for temperature regulation in reactors and cooling systems to ensure chemical reactions proceed within the optimal temperature range.
Petroleum Industry: Controls the heating and cooling processes of petroleum products to optimize refining processes.
Food Industry: Regulates temperature in food processing and hot water supply systems to ensure the safety and quality of the food processing process.
Light Textile Industry: Used for temperature control in the dyeing and drying processes of textiles.
Service Industry: Regulates the temperature of hot water supply systems to improve user comfort.
 
Electric temperature control valves, with their efficient automated control capabilities and excellent performance features, have become an important tool in industrial temperature management. Using a simple 220V power source and the energy of the medium itself, this equipment can accurately regulate the temperature of steam, hot water, thermal oil, and gases, widely applied in chemical, petroleum, food, and light textile industries. Its main features include high-precision control, easy operation, rapid response, reliable sealing, and compact design, making it outstanding in temperature control. Whether heating or cooling types, electric temperature control valves can achieve precise adjustment according to actual needs, optimize process flows, and improve production efficiency. With correct installation and maintenance, long-term stable operation can be ensured, providing reliable assurance for various temperature control applications.