Gree air conditioning compressor technology which?
Gree air conditioning compressor technology which?
G10 low-frequency control technology of Gree's three core technologies
Energy-saving comfortable inverter air conditioner, in promoting low-carbon environmental protection today plays an increasingly important role. In the maintenance of indoor temperature under the premise of constant, inverter air conditioner compressor operating frequency lower, the smaller the power consumption, more energy and comfortable.
However, the current inverter air conditioner market, the most widely used single-rotor compressor, vibration in the low-frequency operation, and in the actual operation and the need for air-conditioning low-frequency operation, how to solve the problem of low-frequency vibration is one of the industry's main technical problems.
In addition, the bus voltage control, improve the reliability of power factor correction, improve the high-frequency inverter air conditioner operating capacity is also one of the main technical problems in the industry. Gree power R & D team after a tough research, successfully developed a low-frequency control technology G10, made a number of core technology breakthroughs.
1, adaptive torque control technology, a fundamental solution to the single rotor compressor low frequency vibration problem.
2, single-cycle power factor correction technology to achieve the active control of the bus voltage, reliability has been further improved.
3, single-chip driver integration technology, higher integration, faster processing.
Comparison test of national authority shows that G10 adaptive low frequency torque control technology in the compressor vibration, pipeline stress and strain, the minimum operating frequency and other technical indicators, are beyond the international similar products.
G10 adaptive low-frequency torque control technology, the national authority to identify the international leading level. And obtain the DC power supply device, improve the power factor and adjust its output voltage method, the torque automatic compensation system and the torque automatic compensation method and so on 7 invention patents at home and abroad.
G10 low-frequency torque control technology, so that more energy-efficient inverter air conditioner to achieve the goal, according to a 1.5 cold capacity of Gree air-conditioning operation for 6 months a year, running 8 hours a day calculation, compared with the same cooling air conditioning, A 1.5 calorie Gree G10 inverter air conditioner can save about 258 degrees a year, saving about 155 yuan electricity.
G10 technology if all the domestic air-conditioning enterprises to use, according to domestic sales of 26.72 million sets in 2009, the annual saving of 6.9 billion kWh of electricity, equivalent to reduce emissions of 6.87 million tons of carbon dioxide.
Gree three core technology of ultra-efficient constant speed compressor
To make the air conditioner more energy efficient, there are three ways: to increase the condenser and evaporator, optimize the duct and refrigeration system, the use of DC fan motor and high efficiency compressor, and these channels, the best way is to use efficient compressor.
The use of single-phase asynchronous starting permanent magnet synchronous motor ultra-efficient constant speed compressor is the industry's hot research, the international well-known air-conditioning enterprises and compressor manufacturers conducted a lot of research, but did not succeed.
Gree force R & D team through years of accumulated technology and painstaking research, and finally overcome this world-class problems, the successful development of a new ultra-efficient constant speed compressor.
Ultra-efficient constant speed compressor R & D success has made a number of breakthrough technological innovation:
Electron - efficient design technology
Compressor reliable starting technology
To prevent permanent magnet demagnetization technology
Process Design and Manufacturing Technology of Key Components
Gree ultra-efficient constant speed rotor compressor in the national standard conditions, the energy efficiency ratio reached the industry's highest 3.42, with the most efficient fixed-speed rotor compressor on the market, COP increased by 8.6%. The use of the new ultra-efficient high-speed compressor air conditioner, the system does not change the conditions, energy efficiency can be at least directly upgrade a level. Gree ultra-efficient high-speed compressor by the national authority identified as the leading international level.
According to the annual operation of 6 months, 8 hours a day operation calculation, a use of this ultra-efficient constant speed compressor 1.5 cold air conditioning and ordinary compressor with the same cooling capacity and air conditioning system compared to a year can save Electricity about 94 degrees, saving electricity 56 yuan. At the same time, due to the use of ultra-efficient compressor, each air-conditioning can save air conditioning and other copper and other metal materials 0.65 kg, China's annual output of more than 60 million air-conditioning units, if more than 90% of the production of fixed-speed air-conditioning all use ultra-efficient constant speed compressor , Each year for the community to save 35,100 tons of copper resources for the community to save money 5.4 billion, saving electricity 5.08 billion degrees, reducing CO2 emissions by 5.06 million tons.
Gree three core technology of efficient centrifugal chillers
China's existing nearly 500 million square meters of large public buildings, the unit area of electricity consumption is the general residential building electricity consumption of 10 to 20 times the total electricity consumption accounts for about 25% of China's construction electricity consumption. With the rapid growth of large public buildings, research and promotion of key technologies to reduce the energy consumption of large public building air-conditioning systems is of extraordinary significance to the energy strategy of building energy conservation and the whole country.
Efficient centrifugal chiller is the "Eleventh Five-Year" national science and technology support program major project is to reduce the efficiency of large-scale public building air-conditioning system, one of the key technologies, the project proposed "temperature and humidity independent treatment system" is the current air treatment A comprehensive innovation, it is a technical innovation. Gree study found that conventional centrifugal units with the water temperature increases, the efficiency of the compressor is declining.
Through the hard research and research, Gree invented the small pressure than the centrifugal compressor, compared to conventional centrifugal compressor, small pressure than the centrifugal compressor efficiency increased significantly from 0.65 to 0.81, increased by 24.6%, to solve the high temperature operation of the unit When the compressor with the water temperature rise and the efficiency of the problem, improve the efficiency of the compressor. And obtained the invention patent.
The compressor with high efficiency centrifugal chiller COP up to 9.18, the same conditions, than the average centrifugal unit 30% -50% energy saving, is by far the most energy efficient large central air conditioning. Efficient centrifugal chillers by the national authority identified as the international leading level.
To 100,000 square meters of engineering, for example, run 3000 hours per year, compared to ordinary centrifugal units, the use of efficient centrifugal chillers annual savings of about 1.5 million degrees -250 million degrees, saving about 900,000 yuan -150 Million yuan.
If China's 500 million square meters of large public buildings are equipped with efficient centrifugal chillers, the annual savings of 7.9 billion degrees, reducing 7.88 million tons of CO2 emissions.
G10 low-frequency control technology of Gree's three core technologies
Energy-saving comfortable inverter air conditioner, in promoting low-carbon environmental protection today plays an increasingly important role. In the maintenance of indoor temperature under the premise of constant, inverter air conditioner compressor operating frequency lower, the smaller the power consumption, more energy and comfortable.
However, the current inverter air conditioner market, the most widely used single-rotor compressor, vibration in the low-frequency operation, and in the actual operation and the need for air-conditioning low-frequency operation, how to solve the problem of low-frequency vibration is one of the industry's main technical problems.
In addition, the bus voltage control, improve the reliability of power factor correction, improve the high-frequency inverter air conditioner operating capacity is also one of the main technical problems in the industry. Gree power R & D team after a tough research, successfully developed a low-frequency control technology G10, made a number of core technology breakthroughs.
1, adaptive torque control technology, a fundamental solution to the single rotor compressor low frequency vibration problem.
2, single-cycle power factor correction technology to achieve the active control of the bus voltage, reliability has been further improved.
3, single-chip driver integration technology, higher integration, faster processing.
Comparison test of national authority shows that G10 adaptive low frequency torque control technology in the compressor vibration, pipeline stress and strain, the minimum operating frequency and other technical indicators, are beyond the international similar products.
G10 adaptive low-frequency torque control technology, the national authority to identify the international leading level. And obtain the DC power supply device, improve the power factor and adjust its output voltage method, the torque automatic compensation system and the torque automatic compensation method and so on 7 invention patents at home and abroad.
G10 low-frequency torque control technology, so that more energy-efficient inverter air conditioner to achieve the goal, according to a 1.5 cold capacity of Gree air-conditioning operation for 6 months a year, running 8 hours a day calculation, compared with the same cooling air conditioning, A 1.5 calorie Gree G10 inverter air conditioner can save about 258 degrees a year, saving about 155 yuan electricity.
G10 technology if all the domestic air-conditioning enterprises to use, according to domestic sales of 26.72 million sets in 2009, the annual saving of 6.9 billion kWh of electricity, equivalent to reduce emissions of 6.87 million tons of carbon dioxide.
Gree three core technology of ultra-efficient constant speed compressor
To make the air conditioner more energy efficient, there are three ways: to increase the condenser and evaporator, optimize the duct and refrigeration system, the use of DC fan motor and high efficiency compressor, and these channels, the best way is to use efficient compressor.
The use of single-phase asynchronous starting permanent magnet synchronous motor ultra-efficient constant speed compressor is the industry's hot research, the international well-known air-conditioning enterprises and compressor manufacturers conducted a lot of research, but did not succeed.
Gree force R & D team through years of accumulated technology and painstaking research, and finally overcome this world-class problems, the successful development of a new ultra-efficient constant speed compressor.
Ultra-efficient constant speed compressor R & D success has made a number of breakthrough technological innovation:
Electron - efficient design technology
Compressor reliable starting technology
To prevent permanent magnet demagnetization technology
Process Design and Manufacturing Technology of Key Components
Gree ultra-efficient constant speed rotor compressor in the national standard conditions, the energy efficiency ratio reached the industry's highest 3.42, with the most efficient fixed-speed rotor compressor on the market, COP increased by 8.6%. The use of the new ultra-efficient high-speed compressor air conditioner, the system does not change the conditions, energy efficiency can be at least directly upgrade a level. Gree ultra-efficient high-speed compressor by the national authority identified as the leading international level.
According to the annual operation of 6 months, 8 hours a day operation calculation, a use of this ultra-efficient constant speed compressor 1.5 cold air conditioning and ordinary compressor with the same cooling capacity and air conditioning system compared to a year can save Electricity about 94 degrees, saving electricity 56 yuan. At the same time, due to the use of ultra-efficient compressor, each air-conditioning can save air conditioning and other copper and other metal materials 0.65 kg, China's annual output of more than 60 million air-conditioning units, if more than 90% of the production of fixed-speed air-conditioning all use ultra-efficient constant speed compressor , Each year for the community to save 35,100 tons of copper resources for the community to save money 5.4 billion, saving electricity 5.08 billion degrees, reducing CO2 emissions by 5.06 million tons.
Gree three core technology of efficient centrifugal chillers
China's existing nearly 500 million square meters of large public buildings, the unit area of electricity consumption is the general residential building electricity consumption of 10 to 20 times the total electricity consumption accounts for about 25% of China's construction electricity consumption. With the rapid growth of large public buildings, research and promotion of key technologies to reduce the energy consumption of large public building air-conditioning systems is of extraordinary significance to the energy strategy of building energy conservation and the whole country.
Efficient centrifugal chiller is the "Eleventh Five-Year" national science and technology support program major project is to reduce the efficiency of large-scale public building air-conditioning system, one of the key technologies, the project proposed "temperature and humidity independent treatment system" is the current air treatment A comprehensive innovation, it is a technical innovation. Gree study found that conventional centrifugal units with the water temperature increases, the efficiency of the compressor is declining.
Through the hard research and research, Gree invented the small pressure than the centrifugal compressor, compared to conventional centrifugal compressor, small pressure than the centrifugal compressor efficiency increased significantly from 0.65 to 0.81, increased by 24.6%, to solve the high temperature operation of the unit When the compressor with the water temperature rise and the efficiency of the problem, improve the efficiency of the compressor. And obtained the invention patent.
The compressor with high efficiency centrifugal chiller COP up to 9.18, the same conditions, than the average centrifugal unit 30% -50% energy saving, is by far the most energy efficient large central air conditioning. Efficient centrifugal chillers by the national authority identified as the international leading level.
To 100,000 square meters of engineering, for example, run 3000 hours per year, compared to ordinary centrifugal units, the use of efficient centrifugal chillers annual savings of about 1.5 million degrees -250 million degrees, saving about 900,000 yuan -150 Million yuan.
If China's 500 million square meters of large public buildings are equipped with efficient centrifugal chillers, the annual savings of 7.9 billion degrees, reducing 7.88 million tons of CO2 emissions.
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