Recently, the "Energy Conservation and New Energy Vehicle Industry Development Plan" led by the Ministry of Industry and Information Technology will be announced in the future. According to the "Plan", the sales volume of China's new energy vehicles will reach the top in the world in 2020, and new energy vehicles should use pure electric as the main technical route to vigorously develop energy-saving vehicles. In the next 10 years, the government will invest 100 billion yuan to build an industrial chain of new energy vehicles. In order to ensure that by 2020, the total production and sales of new energy vehicles in China will reach 5 million. During the “Twelfth Five-Year Plan†period, the market for pure electric vehicles and plug-in hybrid vehicles reached more than 500,000 vehicles; the number of medium- and heavy-duty hybrid passenger vehicles reached 1 million. At the same time, in 2015, the production capacity of 1 million new energy vehicles will be realized, of which pure electric vehicles and plug-in hybrid vehicles will account for 50%. It can be seen that the energy-saving and new-energy automobile industry is one of the most promising industries during the “Twelfth Five-Year Plan†period. Such an attractive market cake, it is estimated that suppliers in the new energy industry chain would like to take a share. However, considering that the current bottleneck of automobile development still exists, the hardware industry can stabilize the victory, Xiaobian believes that enterprises should proceed calmly according to their own strength. Auto parts: mature technology is the key According to the current situation, the production of 5 million new energy vehicles naturally means a new development opportunity for auto parts companies. However, the defects of integrated auto parts, such as the cost is not superior, the charging station infrastructure is lagging behind, the key components and technologies are still not closed, and many companies still dare not venture into it. In fact, if we are blindly pursuing the huge potential of the new energy industry, China's component manufacturers should consider the company's own financial strength and technology research and development strength, and plan to invest in the new energy industry. For those companies whose funds are not available, they can focus on the research and development of energy-saving parts and components of traditional enterprises. In fact, some key technical levels of traditional cars will still largely determine the level of development of hybrid vehicles. Therefore, in addition to the continuous exploration of new technologies such as motors and batteries, it is equally urgent to improve the key technologies inherent in traditional vehicles. Therefore, while we attach importance to the development of new energy vehicles, we must not forget the energy conservation and consumption reduction of traditional energy vehicles. Parts manufacturers should make rational choices under the premise of correctly understanding the investment in the new energy market. Non-ferrous metals: demand is expected to increase It is reported that as of the end of 2011, State Grid Corporation will complete the construction of 75 electric vehicle charging stations and 6,209 charging piles. In recent years, State Grid Corporation has continuously strengthened the construction of electric vehicle charging stations. In this year, it has carried out pilot projects for charging facilities in 26 provinces and cities, and studied the charging and discharging technologies and operating modes of electric vehicles. In 2015, 1,700 public charging stations and 3 million AC charging piles will be built. As a result, the construction of electric vehicle charging stations has brought about a rise in the non-ferrous metals and other materials industries. “After the grid company has obtained the initial income from the construction of the charging station network, the non-ferrous metal industry can obtain the second barrel of gold from the construction of the charging station.†Insiders said that when the national infrastructure construction is coming to an end, electric vehicle charging Station construction is expected to take over the baton and continue to drive demand in the domestic copper market. Taking Shanghai Tunxi charging station as an example, the total investment is 5.08 million yuan, and the charging device investment accounts for 2 million yuan. Among them, refined copper is widely used in the construction of electric power grids and related charging devices. Due to the large-scale construction of electric vehicle charging stations in recent years, the unit price of Shanghai copper has increased from 27,000 yuan/ton at the beginning of 2009 to 56,000 yuan/ton at the end of 2010. Electrical equipment: the continued increase in potential value of national policies, the increased acceptance of consumers, and the gradual consolidation of electric vehicle infrastructure, the improvement of battery systems and powertrain systems, will give electric vehicle manufacturers, battery materials, Charging equipment manufacturers, other electrical accessory manufacturers, and power station operators bring incalculable new opportunities. The development of electric vehicles is of great significance to China's energy conservation and emission reduction business, and the improvement of charging station facilities is the key to the large-scale promotion of electric vehicles. Although the technical standards for electric vehicle charging stations have not yet been fully introduced, the work of charging station construction related enterprises has started. The CEO of a domestic production of charging interface related accessories told Xiaobian. Their DC and AC interface devices for electric vehicle charging stations are already in trial production. As the heart of electric vehicles - lithium-ion batteries, motors and control systems will enjoy electric car events.
Expansion Valves are devices used to control the refrigerant flow in a refrigeration system. They remove pressure from the liquid refrigerant to allow expansion or change of state from a liquid to a vapor in the evaporator. Expansion valves serve two purposes: controlling the amount of refrigerant entering the evaporator and maintaining the pressure difference between the condenser (high-pressure side) and the evaporator (low-pressure side).
The main types of expansion valves are as follows.
1. Thermal Expansion Valve (TEV)
2. Electronic Expansion Valve
3. Automatic Expansion Valve
4. Manual Valve
5. Capillary Tube
6. Float Valve
Thermal Expansion Valve, Thermostatic Expansion Valve, Automatic Expansion Valve, Electronic Expansion Valve
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