The development of water source heat pump complies with China's policies

Summary of contents: China is a big country for energy consumption, of which building energy consumption accounts for nearly 1/4 of the national energy consumption. From the perspective of sustainable development, the use of renewable energy and improving energy efficiency are important ways to implement the scientific concept of development and take a sustainable development path.

Heat energy contained in seawater is a typical renewable energy source. "Central seawater air conditioning" is a type of ground temperature central air-conditioning system. It is a utilization mode of renewable energy, and it is also a green heating refrigeration and air-conditioning system with energy conservation and environmental protection significance. China has a long coastline. Some coastal cities have begun to plan to use seawater-source heat pump air-conditioning systems to provide cold and heat sources for construction, so as to save energy, reduce pollution, and serve the construction of ecological cities.

The ground temperature central air-conditioning or water source heat pump unit recovers waste heat of urban domestic sewage, river water, lake water, industrial waste water and oil field reinjection water. No combustion process occurs, no waste water, waste gas and waste are discharged, and energy conservation and environmental protection benefits are obvious. At present, the "water source heat pump technology" is increasingly used in office buildings, hotels, hospitals, restaurants, villas, residential quarters and other real projects of refrigeration, heating and central air-conditioning; at the same time, with the "energy-saving emission reduction" awareness The continuous improvement of the work and continuous deepening of work, water source heat pump is also gradually applied to the recycling of industrial waste heat, and gradually applied to the petroleum, chemical, metallurgy, textile, food and other industries.

Seawater articles: seawater can also be "air conditioning"

"No coal, no oil, no gas; no smoke, no slagging, zero pollution," can provide cooling, heating, and domestic hot water for buildings. This is the seawater source heat pump cooling and heating technology. , which is what we often say "water central air conditioning." The application of the “Seawater Central Air Conditioning System” indicates that China’s seawater utilization has entered the world’s advanced ranks.

Master Chen Boiler, who works at Guobin Seaview Hotel in Haiyang, Shandong Province, said that the commissioning of the “seawater central air-conditioning unit” made it unnecessary for him to deal with “coal”. With the promotion and application of "seawater central air-conditioning" technology, more and more boiler workers began to bid farewell to "dust smoke and dust" like Master Chen.

Xu Wei, Director of the Institute of Air Conditioning at the Chinese Academy of Building Research, said that the seawater-source heat pump technology uses a small amount of electric energy to extract heat and cold from seawater to achieve the purpose of heating and cooling, not only for heating in winter but also for cooling in summer. .

According to reports, the seawater source heat pump technology extracts the heat energy in the seawater, and the heat pump compressor unit uses only 1/4 of the electric energy required for normal air conditioning operation. The entire heating process will not cause any pollution to air and water sources. At the same time, the use of seawater for heating and cooling does not require coal or oil, which significantly reduces costs.

In November 2004, China's first “seawater central air-conditioning” that directly used seawater as a heat source was successfully installed at the Weihai International Yacht Club. Shandong Fulda Air Conditioning Equipment Co., Ltd., which introduced this new technology, also obtained national invention patents. Wang Fumin, general manager, said that at present, heating in coastal cities in China relies on traditional methods such as coal-fired boilers and oil-fired boilers. This not only exacerbates air pollution, but also aggravates the contradiction between energy supply structure and demand. China's land coastline is 18,000 kilometers, and seawater is an inexhaustible source of renewable energy.

According to industry insiders, China has now become a major refrigeration and air-conditioning country in the world. Air-conditioning has become a large energy consumer in the national economy. In general, central air-conditioning energy consumption accounts for 50% of the total building energy consumption, and shopping malls and integrated buildings reach more than 60%. If the "seawater central air conditioning" is used, these buildings can save about 3/4 of the electric energy than using conventional air conditioners.

The environmental effect of “seawater central air-conditioning” is also incomparable with traditional air-conditioning. The technical personnel responsible for “seawater central air-conditioning” of the Sea-view Hotel in Haiyang, Haiyang, Shandong Province, said that the seawater will be used to introduce seawater into the “seawater central air-conditioning” system. After being extracted, the seawater is “sent” back to the sea as it is. In the summer, when the coldness in the seawater is extracted, a lot of seawater is “sent” back to the sea. These processes are controlled by computers. of.

China is rich in sea water resources, has a long coastline, and has many coastal cities. It is mostly economically developed and has a large demand for central air-conditioning. At present, China's coastal cities have not yet exploited seawater as a large-scale heat pump station. Fulda, which has launched the “Seawater Central Air Conditioning” technology, is seeking to establish large seawater heat pump stations in coastal cities.