Water mixing device of water distributing and collecting device and control method thereof

Abstract

The invention discloses a water mixing device of a water distributing and collecting device. The water mixing device is characterized in that an electric three-way regulating valve, a circulating water pump and a water temperature sensor are arranged on a water supply pipeline where a cooling and heating water inlet pipe is connected with a water distributor, a three-way pipe and an electric stop valve are arranged on a water return pipeline where a water collector is connected with a cooling and heating water outlet pipe, and the three-way pipe is combined with a water return branch pipe for connecting return water on the water return pipeline into the electric three-way regulating valve; and the water mixing device further comprises an indoor dew point temperature probe, an indoor temperature sensor, a temperature control panel, an electric three-way regulating valve, a circulating water pump, a water temperature sensor and an electric stop valve, wherein the indoor dew point temperature probe and the indoor temperature sensor are electrically connected with the temperature control panel. Meanwhile, the invention further discloses a control method of the water mixing device. The water mixing device is simple in structure and stable in operation, the water mixing device is arranged at the radiation tail end of a fresh air conditioning system and can be directly connected into a conventional air conditioning water system, condensation caused by too low water supply temperature in summer can be avoided, and the situation that the service life of components and radiant tubes is affected by too high water supply temperature in winter can be prevented.

Description

technical field [0001] The invention belongs to the technical field of fresh air air-conditioning systems, and in particular relates to a water mixing device for a water collector and a control method thereof, which are applied to a radiation end to regulate and control the radiation end. Background technique [0002] With the development of fresh air air-conditioning technology, a fresh air air-conditioning system integrating fresh air, air conditioning and heating and cooling has emerged. At the radiation end of the fresh air air-conditioning system, there are water collectors and water separators, which use the cooling and heating inlet pipes and cooling and heating outlet pipes to provide cold and hot water sources, thereby heating and cooling the room. [0003] Usually, the water supply temperature in the fresh air air conditioning system is 7°C in summer, and the return water temperature is 12°C. However, the supply water temperature of 7°C is too low for the radiant e...

AI Technical Summary

Problems solved by technology

The device structure is complex, the system operation is unstable, and the control accuracy needs to be improved

[0004] At the same time, in the winter of the water supply system, due to the high temperature of the water supply, the radiant tube and other components are easily damaged due to long-term high-temperature operation, and the service life is short

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