Instead of heating the boiler, instead of seawater. Recently, the author learned from the Technology Promotion Office of Geothermal in Qingdao Environmental Protection Bureau of Shandong Province that a seawater source heat pump project with an investment of about 200 million yuan is expected to be completed by the end of next year. By then, the sea water source heat pump will replace the heating station, Qingdao citizens will enjoy no pollution of the "sea air conditioning." The so-called "sea air conditioning" is to sea water as a heat source (cold source), the use of water source heat pump technology, convert it into heat (cold energy), to winter heating and summer cooling function. The project is being designed and planned by Swedish company AP and North China Design Institute.
"Sea water air conditioning" simple operation, the seawater out, after it passed the plate heat exchanger, the heat extracted, replaced to tap water. Tap air compressor and then compressed, the temperature can be increased to seventy-eight degrees Celsius. The hot water then heated the air and finally the air was delivered to households via the air coil.
According to reports, the entire "sea air conditioning" project closed all the sea ​​water cycle , will not produce smoke and sewage, is green energy. The use of sea water heating and cooling does not require the consumption of coal and oil, not only energy , but also greatly reduce costs. The experts estimate that using "seawater air conditioning" technology, in a heating season, the average heating cost per square meter is only 15 yuan (summer average per square meter cooling costs only 5 yuan); if coal heating, heating per square meter It costs about 25 yuan; the boiler heating power is as high as 80 yuan per square meter. The use of seawater source heat pump heating technology, in addition to winter heating, summer cooling, usually through heat pump air conditioning technology at any time access to hot water.
It is understood that this technology has been widely used in Switzerland, Sweden and other countries.