How to make the temperature control pneumatic valve better play a role in the radiator

century s radiator thermostatic control pneumatic valve appeared in Europe, in the early developed by our country began to radiator thermostatic control pneumatic valve, into s, later period, with the deepening of heat metering technology and to meet the majority of the people of the bedroom temperature personalized requirements, a variety of domestic and imported radiator thermostatic control pneumatic valve products arises at the historic moment, and be used in many engineering projects in China.
in the room temperature control of radiator heating radiator thermostatic control pneumatic valve can be used to control, also can use the manual temperature control with better resistance characteristic of pneumatic valve control. The radiator thermostatic control pneumatic valve control the advantage of can better using the free 'hot' for the purpose of energy saving, avoid the user adjust troublesome repeatedly at the same time.
and radiator thermostatic control pneumatic valve working principle and classification of
the radiator thermostatic control pneumatic valve consists of two parts, temperature controller and pneumatic valve body. The mechanism for the user to set the thermostat spin to the required temperature, when the indoor temperature more than set temperature, temperature constant temperature controller in package ( Filled with heat medium) Thermal expansion, the volume increase, promote the pneumatic valve stem, make small pneumatic valve, reduce the radiator water flow, make the room temperature reaches the set temperature. When indoor temperature is lower than the set temperature, temperature due to shrinkage, reduced volume, reset spring back pneumatic valve inside pneumatic valve core rod, to make the pneumatic valves open, increases the radiator water flow, until the room temperature reached set value.
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constant temperature, constant temperature controller controller according to the bulb location can be divided into the bulb built-in and remote transmission. Because the bulb is felt the surrounding air temperature, and temperature control of the pneumatic valve regulating action is package volume due to temperature change, so the bulb the location for the proper use of pneumatic control valve is very important. In most cases, this group of radiator needs to adjust the indoor temperature in the room, appropriate USES bulb temperature control pneumatic valve inside. In certain cases, such as radiator be radiator cover, pneumatic control valve is located in the enclosure, or other heat in temperature control pneumatic valve close ( Cold) Sources, such as kitchen, strong lighting lamps and lanterns, etc. , when the bulb is around the local high temperature, rather than the room temperature accurately, appropriate USES far eastone thermostat. In some special systems, such as horizontal single pipe downstream system, only in the first set of radiator temperature control pneumatic valve installation, and the user to adjust the temperature between sitting room or advocate bedchamber is given priority to, also can use remote transmission type pneumatic control valve, temperature sensors placed in the sitting room or advocate lie inside collect adjusted its temperature.
. Pneumatic valve, temperature control and according to the bulb by thermal medium filling of different classification, can be roughly divided into the following four categories:
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temperature steaming temperature package type bags filled by medium is a kind of low boiling point liquid, when the outside temperature, part of the liquid gas, bulb volume increases push pneumatic valve stem, small pneumatic valve opening, reduced into the radiator water flow, when the outside temperature lowering, liquid, gas and liquefied parts of the bulb volume decreases, and pneumatic valve opening increases, thus increasing the radiator water flow. Thermal medium in this bulb often in gas and liquid mixed state, its advantage is action time quickly, but very strict with bulb seal, rarely used in domestic.
） Liquid bag type
temperature bags filled with heat medium as a special liquid, usually for methanol and toluene. The bulb volume is larger, action time is shorter, which has been widely applied in domestic at present.
） Solid state bulb type
filled in the bulb is high expansion coefficient of solid, paraffin, etc. Due to the gas and solid liquid is heated, Cold) Volume change is small, so the thermal action is slow, but relatively liquid temperature small package volume, there is also a part of the application in the country.
） Metal plate
the temperature constant temperature controller device as a special kind of which has the function of memory alloy sheet metal, the metal due to heat bilges cold shrink, pneumatic control valve action.
this kind of products before they go out for the thermal device according to experiment and test, at the same time, due to the metal after frequent flexing and bending fatigue fracture characteristics change problems, and the metal is malleable, so can this kind of life and precision of the temperature sensing device. Some domestic manufacturers such temperature control pneumatic valve products, its products abroad rarely seen.