With the continuous development of thermal measurement policies and technologies. In recent years, radiator thermostatic valves have become an important means of energy-saving heating systems, have received widespread attention and are being vigorously promoted. What is the definition of the radiator thermostat valve? What is the working principle of radiator thermostat valve ? Following Xiaobian look at it.
Definition of radiator thermostatic valve
Radiator thermostatic valve, full name radiator thermostatic control valve, is a typical application of flow control valve in the field of temperature control. Generally used when installing radiators, adjust the control temperature.
Classification of radiator thermostatic valve
Radiator thermostatic valves are categorized according to the temperature of their temperature package and can be roughly classified into the following four categories:
1 Steam Temperature Package
The medium filled in the warm package is a kind of low-boiling liquid. When the external temperature rises, part of the liquid vaporizes into gas. The volume of the warm package increases to push the valve stem, close the small valve opening, and reduce the flow of water into the radiator. When the outside temperature decreases, part of the gas liquefies into a liquid, the volume of the warm package decreases, and the valve opening increases, thereby increasing the flow of the radiator water. The temperature-sensing medium in the warm package is often in the mixed state of gas and liquid. The advantage is that the working time is rapid, but the requirement for the warm package sealing is very strict, and it is rarely used in domestic applications.
2 liquid warm package type
The temperature-sensitive medium filled in the warm package is a special liquid, generally methanol or toluene. Such a warm package has a large volume and a short duration of action, and is widely used in domestic applications.
3 solid state warm package
The warm bag is filled with a solid with a high coefficient of expansion, mostly paraffin wax. Inverter radiator due to the solid relative to the gas and liquid heating (cold) volume change is small, so its slow temperature movement, but the volume is relatively small relative to the liquid temperature package, there are also some applications in the country.
4 metal slice
The thermostat controller temperature sensing device is a special alloy metal sheet with memory function. This metal sheet is driven by the thermal expansion and contraction to drive the temperature control valve.
Radiator thermostatic valve works
The user will rotate the constant temperature controller to the required set temperature. When the indoor temperature exceeds the set temperature, the temperature package inside the thermostatic controller will expand due to heat and the volume will increase, pushing the valve stem and closing the valve. , Reduce the flow of radiator water, so that the room temperature reaches the set temperature. When the room temperature is lower than the set temperature, the temperature envelope shrinks and the volume decreases. The return spring in the valve core pushes the valve stem back to open the valve, increasing the radiator water flow until the room temperature reaches the set value. . The temperature sensing element can be very sensitive to the slight changes in room temperature, and automatically adjust the flow rate to reach a comfortable temperature range.
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Radiator installation
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