Ground source heat pump system in three forms of contrast

With the global energy crisis and the increasing human demand for environmental protection, people continue to abandon the traditional way of heating and cooling while adopting more advanced and more energy-efficient cooling and heating technologies and products.

Buried ground source heat pump central air conditioning system is known as the most effective cold and warm central air conditioning technology in twenty-first Century. This technology does not require a boiler room in winter. In summer, no cooling towers, no coal, no fuel, no gas, no drilling, no underground water, no damage to groundwater resources, no thermal pollution of air and no generation of waste gas and waste , With good quality of zero pollution. Summer can be cold, winter heating, but also for domestic hot water, to achieve "triple for", but also with less investment, low operating costs and other top ten features. The Chinese party and all levels of government regard energy conservation and environmental protection as important elements of a sustainable development strategy.

China's current energy situation

China's total energy consumption ranked second in the world;
The average level of China's energy population is less than 50% of the world average;
The total amount of building energy consumption in China has been rising year by year, accounting for 27.45% of the total energy consumption.
9 blowing above our country are high-energy buildings;
China's building energy consumption is more than three times that of western countries;
Nearly 55% of building energy consumption is heating and air conditioning energy consumption and is still rising;
China's sulfur dioxide emissions rank the first place in the world;
China's carbon dioxide emissions rank second in the world.


What is the ground source heat pump? What is buried tube ground source heat pump?

Ground source heat pump is a central air-conditioning process. It uses surface water, groundwater or underground shallow ground temperature as a cold source of heat, both heating and cooling of energy-efficient air-conditioning system. Ground source heat pump by entering a small amount of high-grade energy (such as electricity), to achieve low-temperature heat transfer to high temperature. In winter, the heat in the earth can be "taken" out to raise the temperature for indoor heating; in summer, the indoor heat is taken out and released into the ground. Usually source heat pump consumes 1 KW of energy, users can get more than 4KW of heat or cold.
Ground source heat pump system is divided into three forms, one is the way of using surface water, that is, rivers, lakes, sea, etc .; the other is the way of using groundwater, also known as "water source heat pump" central air conditioning system; Three are buried tube, and some are called "ground-source heat pump" central air conditioning system. Comparison of several types of ground source heat pump, to determine the direction of the development of ground source heat pump.

Below we compare the three types of ground source heat pump:
Types of restricted projects Buried soil sources Groundwater sources Surface water sources Water resources Laws and regulations are not restricted, the state encourages restricted approval is strictly limited, subject to approval Geographic latitude Applicable to the north of the Yangtze River in our country north of the Yangtze River Affected, Surface water temperature is greater than 7 ° C in winter and less than 30 ° C in summer
The distance between building and ground source will not be affected. Long-term pumping of vertical buried pipes around the building will cause land subsidence. There are strict requirements for well density and well spacing. The distance to take water should not be too far. Life expectancy and reliability are not affected. The amount of water that can be used for 50 years of well pipe filling is greatly affected by the change of groundwater level. The service life of the well is affected by many factors. The amount of water taken is affected by the change of surface water level. The service life of the water pipeline is lower than the vertical buried pipe of soil source Much more Conclusion Through the above types of comparative analysis, Buried Ground Source Heat Pump is the most suitable for our country, although the other two types also have their inherent advantages, but the hardware and software conditions in China point of view, there is still some unreasonable and not Implementation, should not be widely promoted in our country.