A heat exchanger is a device used to transfer heat, usually to transfer heat from one fluid to another without them mixing. A heat exchanger usually consists of a number of parallel pipes in which one fluid flows through the pipe and another fluid flows through the outside of the pipe. In this way, heat can be transferred from one fluid to another for heating or cooling purposes. Heat exchangers are widely used in many industries, such as chemical, pharmaceutical, food processing, air conditioning and heating systems, etc.
Heat exchanger usually consists of the following components:
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With the world's largest auto multinationals entering China, world-renowned auto parts manufacturers have come to China to invest in factories or establish technical cooperation with domestic auto parts factories, which has promoted the construction and development of auto parts industry in China. At present, 1,200 of the 5,000 auto parts companies in the country are foreign-invested enterprises.
This is what the reporter learned from the "Seminar on the Expansion of Automobile and Component Exports" held here.
The world's nine largest automotive multinationals, General Motors, Ford, Daimler-Chrysler, Volkswagen, Toyota, Renault-Nissan, Peugeot-Citroen, Honda, and BMW have all entered China. In order to reduce costs and increase the degree of localization, German Volkswagen, U.S. General Motors, and French Citroën invested in China and led foreign cooperative companies to invest in China. In order to support Shanghai Volkswagen, more than 100 companies have come to invest in the globally-supported company. At the beginning of U.S. General Motors' investment in China, it attracted 44 related auto parts supporting projects to invest, with a total investment of up to 2.23 billion U.S. dollars.
Delft, Bosch, Eaton, Michelin and other world-renowned auto parts multinational corporations have entered China to establish wholly-owned or joint ventures. Most of the world's leading auto parts companies have established joint ventures or wholly-owned enterprises in China. Delphi Automotive Systems, the world's largest auto parts manufacturer, has set up 13 wholly-owned and joint ventures, a technology center and a training center in China, with a total investment of more than 400 million U.S. dollars. The annual sales in China are nearly 500 million U.S. dollars and one third of the products are exported. Bosch, the world’s second-largest auto parts manufacturer, has established a large-scale parts distribution network covering China, and has more than 150 after-sales service stations. Visteon has established five joint ventures in China to manufacture automotive components. The world’s fourth-largest supplier of automotive parts and components, Nippon Denso Co., Ltd. has set up several wholly-owned and joint venture companies in Tianjin, Yantai and Chongqing.
These multinational auto parts companies have entered China in large numbers, bringing advanced technologies and management, which has promoted the improvement of the overall level of China's auto parts industry, and has initially formed a competitive automobile and parts manufacturing system, not only satisfying domestic Market demand, and some auto and parts products have entered the international market, laying the foundation for China's auto and auto parts expansion.
1. Heat exchange pipe: Pipe used to transfer heat, usually made of metal materials, such as copper, stainless steel, etc.
2. Heat exchange surface: A surface used to transfer heat, usually consisting of metal sheets or pipes. The greater the surface area, the higher the heat transfer efficiency.
3. Housing: Housing, usually made of metal or plastic, used to secure heat exchange pipes and surfaces.
4. Seals: Seals used to prevent media leakage, usually made of rubber or silicone rubber.
5. Support: A support used to support a heat exchanger, usually made of steel or cast iron.
6. Import and export pipes: pipes used for medium entry and exit, usually made of metal or plastic.
7. Cleaning hole: A hole used to clean the inside of the heat exchanger, usually located on the upper or side of the heat exchanger.
8. Insulation layer: Insulation layer used to keep the temperature of the heat exchanger stable, usually made of glass wool or polyurethane foam.