Weak current College】 【circulating water system application in the heating system --- Power By】 【China power house network.

<br> 1. Overview <br> <br> China North winter heating project is both the party and Government, popular engineering and energy consumption. Development of energy-efficient buildings, using energy-efficient heating and heating equipment can meet the demand for .space heating, reducing energy consumption. <br> <br> The North is currently planning and construction of energy efficient residential energy saving rate of 65 percent, and energy efficient home with thickened wall insulation, insulating double glazing Windows, roof insulation, etc. ., to avoid the residential exterior heat loss, heat loss and doors, roof heat loss, and improve living comfort. Owing to construction areas, do not discuss in detail in this article. <br> <br> Heating system with thermal generation, heat .supply and heat adjustment features, reasonable use of energy-saving technology to reduce energy consumption. <br> <br> 2. the heating system constitute <br> <br> Typical independent heating system consists of a heat source (such as electric boilers ., gas-fired boilers, etc.), circulatory system, water system. <br> <br> Currently, many areas segmented tariff policy, Valley electric time (11 pm to 7 am) price is the other half of the time. With .the TOU policies of the meter, electric boiler heat source, configure the heat do tank, use the electric heat low heating system can reduce the cost of running greatly. <br> <br> Electric boiler heating system is electric boiler, heat storage tank ., heat exchanger, heat circulation pump, heating circulation pump, water softener, water pump, the temperature regulating valves, control systems, etc. <br> <br> Municipal water supply after the water softener tank heat treatment after injection. In order to .save investment, heating system, heating and water supply water thermal storage tank by. Heat storage periods of heat pump, electric boiler and electric valve V2 turn on electric three-way valves V1, heating circulation pump running, while in the heat for heating system .with a heat source. Heating time (non-thermal storage time) except for the electric boiler and electric valve V2 stopped working, other devices, the stored heat regenerator tanks to system of heating. <br> <br> 3. workflow <br .> <br> Use, based on user requirements set heat storage slots, heating time, electric boiler heating temperature, water temperature, water pressure, circulation pump, heating time frequency parameter. <br> <br> When you reach the thermal storage period ., recharge electric valve opening, heat storage tank water to the high-water supplement water electric valve closed. Circulation booster pumps run at set frequency, 30 seconds after the start of electric boiler, heat accumulation. When the heat storage tank temperature reaches the set .temperature or heat storage period ended, electric boiler stop working, after 60 seconds stop circulating pump. If you heat storage period and heat storage tank temperature is below 5 ° c temperature setting, circulating pump once again put into operation, 30 seconds to start work .after the electric boiler. <br> Reach the water periods, the water supply electric valve opening, regenerative electric valve closed, electric boiler not working, circulating pump constant pressure water supply frequency adjusting speed. Water-supply period has closed, the electric valve .without water, so as not to supply cold water to the user. If you supply period ends or thermal storage tank of water level below the low water level 60 circular pressure pump seconds to stop working. <br> <br> Control system you can .select the manual work. Open water electric valve, close the regenerative electric valve, start circulating pump with constant pressure water supply frequency adjusting speed, how about 30 seconds after the start, this electric boiler to direct the water supply for the user. Water end ., first stop circulating pump, 60 seconds after the cessation of electric boiler. <br> <br> 4. concluding remarks <br> <br> The People's Republic of China Energy Conservation Act No. 39 of the blower, pumps and other equipment .adopts frequency conversion technology to save energy to run as a generic technology to be promoted. Practice has proved that the inverter is used to pump driven control occasions has made remarkable energy saving effect, but also significantly reduces maintenance, repairing costs, direct and indirect economic .benefits are clear. Electric boiler regenerative heating is an economic and social benefits are very good heating heat source form, it can not only solve the problem of pollution, improve quality and Valley period electricity reduces operational cost and power efficiency, move to the "peak ."role, improving the economic efficiency of electric power system. Integrated using a variety of energy-saving measures. <br>.