Ground source heat pump technology It has three advantages: First, energy saving than other conventional heating technology can be 50 to 60%; Second, environmental protection does not emit any waste; Third, the operating costs can be reduced by 30 to 70%. As a new clean energy, geothermal energy is becoming the choice of more and more countries. China has become the world's largest country that uses the most heat energy. So, what should you watch for when choosing a ground source heat pump? First, the performance characteristics of ground source heat pump, the installation of the machine, the pipeline maintenance requirements. 1. Ground source heat pump refrigeration, heat speed relative to the fluorine machine, the speed is relatively slow. (Simply because the fluorine machine is a heat exchanger; water is the second heat exchanger, the water supply air temperature higher than the fluorine machine 3 to 4 degrees). 2. There is a certain pipeline leakage hazards. (Because the water pipes can not do the leak test of about 40kg like the copper pipes.) 3. The cooling principle is different, resulting in the ground source heat pump relative to the fluorine machine, the size and noise of the indoor unit is relatively large The temperature is higher than the fluorine machine, the need to increase the amount of air supply, choose a larger fan to ensure the effect), the general noise to large 5 ~ 10dB (A), the internal height to 3 ~ 5 ãŽ. 4. The future maintenance costs are higher (because the installation of pipe whether it is PPR pipe or steel pipe, copper pipe connections, must be regularly cleaned pipeline maintenance, otherwise, due to the system water flow becomes smaller and worse, the use of less and less power consumption Increase). Second, the use of habits, ground-source heat pump system and our daily energy-saving habits, the number of permanent residents have a great relationship. As more resident personnel, the use of most of the machines used to open at the same time, the use of ground-source heat pump system is more energy-efficient; such as less resident personnel, accustomed to local air conditioning (people in the room air-conditioning, people leave the air-conditioning) Ground source heat pump instead of VRV system energy saving; because the ground source heat pump are generally fixed frequency compressors, can not control the current, you can not control the power consumption, and the configuration of the pump is generally 24 hours operation, regardless of the machine to open a few are the same The VRV system is generally a variable frequency drive that can control the power consumption according to how much the internal unit is turned on. Third, the outdoor drilling area: ground source heat pump is through outdoor drilling and soil heat transfer, according to national standard GB, the spacing between buried wells in Shanghai is generally 4.5m (the greater the spacing the better), 300 ㎡ construction area needs at least 80 square meters of drilling area, 400 square meters of construction area needs at least 110 square meters of drilling area, empirical calculation of drilling area and construction area of ​​about 1: 1; to townhouses, for example: If the well area Too small, will result in the use of air conditioning decreased year by year, 5, 6 years after the system will not work properly. At present, the building area of ​​ground source heat pump technology in China has exceeded 140 million square meters. During the "12th Five-Year Plan", China is expected to complete an area of ​​350 million square meters of ground source heat pump heating (cooling) area at 200-300 square meters Yuan investment intensity, with a total investment amount of 700-1050 billion yuan.
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