The application of electric two-way valve of beauty

Electric two-way yan is widely used in central air conditioning system. Electric two-way yan open by the indoor temperature control switch control, when the indoor temperature reaches set temperature, temperature control switch closed the fan coil motor while closed electric two-way valve, closed to the terminal equipment (fan coil, hollow box) water supply.

On terminal equipment with electric two-way valve, which is beneficial to avoid part caused by hydraulic imbalance system terminal equipment can not meet the refrigeration (hot) effect, reduce the requirement of the circulating water. Because the system of water resistance is endless -, equipment at the end of the water supply of water resistance smaller slants big, on the contrary is small. So, if the water supply at the same time, can appear water resistance smaller equipment, at the end of its refrigeration (hot) effect is good, its control area first to design the environment temperature. In the control area to automatically shut down when there is no constant temperature electric two-way valve, water stop to the end of the equipment, so that the larger equipment at the end of the water supply system resistance increases, the refrigeration (hot) ability is enhanced, so that its desired temperature of office places.

In addition, if you don't add electric two-way valve, the summer cooling, reach the environmental temperature set, charge despite the equipment at the end of the fan stops running, system is still in the terminal equipment of the water in the flow. Due to the return water temperature of cooling when a Yin for 7 y/y, 12 equipment at the end of the table near the cooler and in natural convection heat transfer between air, make the equipment at the end of the FengKouChu temperature below the point in the indoor temperature, causing the outlet fan coil ChuJie phenomenon, serious still can appear dripping water. If equipped with electric two-way valve, to reach the set temperature place to stop water supply, reduce in circulating water system, which can be adjusted according to the demand of circulating water circulating pump the number of open, or use automatic adjusting system of circulating water, frequency conversion technology can significantly reduce the power consumption of circulating water pump.

Although the use of electric two-way valve reduces the power consumption of circulating water pump, but this does not necessarily can really reduce the energy consumption index of the system, even make the system power consumption increases. Because the water resistance of electric valve is larger, the adoption of electric two-way yan, increase the water resistance of the system, thereby increasing the circulating water pump head, also increases the power consumption. At the same time, electric two-way valve open to electricity, it also increases the power consumption of the system.

It is worth noting that: after the use of electric two-way valve due to the water cycle is changing system, leading to cold (hot) water units of water changes, this requires cold (hot) water units of refrigeration (hot) abilities change with the change of the system of circulating water. Is not the ability to automatically adjust refrigeration (hot) water chillers, cannot adopt variable frequency pumps, according to the change of the circulating water system automatic adjustment of the unit and back into the water, so the pressure bypass valve must be installed on your system. To ensure that the unit has always been able to get enough water cycle, in this case factory, is unlikely to reduce the power consumption of circulating water pump, but make the system operation cost greatly increased. So, to do not have energy for the automatic adjustment of the chiller, the significance of the use of electric two-way min is not very great.

But one thing is, no one can deny that is after the use of electric two-way valve, can avoid the summer cooling with the terminal equipment of the table near the cooler and the temperature of the air natural convection use FengKouChu fan is low, cause the outlet ChuJie dew, even a drop of water.