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Analysis and development trend of current status of central air-conditioning industry

Analysis and development trend of current status of central air-conditioning industry Abstract: Analyze the development process of China's refrigeration and air conditioning industry from several stages, focusing on the development of refrigeration and air conditioning products in detail from two aspects of technology and market. According to the progress of the industry's international exchanges and cooperation over the years and the impact of China's relevant industrial policies on the industry, the industry's future development trends are expected. It also explained the future development trend of air conditioners from three aspects of frequency conversion, globalization and environmental protection.According to the disadvantages of household air conditioners and central air conditioners, residential central air conditioners were proposed, and their advantages were introduced. Establish a good brand image in the market for a discussion to promote the sustainable development of enterprises. Keywords: central air conditioning; market; refrigeration; energy saving; frequency conversion introduction With the acceleration of the reform of China's economic system, the central air-conditioning industry, like other industries, is facing unprecedented tremendous challenges and opportunities. What direction should the air-conditioning industry develop into the hot topic that people in the industry are most concerned about? The most dynamic brand air-conditioning manufacturers in the Chinese market, such as Xinke, Hisense, Haier and Midea, all believe that frequency conversion, globalization and environmental protection are the future of air conditioning Three major trends of development. Inverter air conditioner, as a replacement product of air conditioner, has been favored by consumers for its remarkable advantages such as constant temperature, energy saving, and ultra-quietness. The impact of large current when the air conditioning product starts; advanced software design, precise control and automatic optimization of the overall internal flow, so that the compressor, heat exchanger and electronic control components in the entire system achieve the most accurate and reasonable configuration and operation. Significant progress will be made in energy saving. 1 Overall development of the industry 1.1 The foundation stage of the industry Ten years before the establishment of the China Refrigeration and Air Conditioning Industry Association, it was a concentrated period for the industry to introduce foreign technology projects. With the introduction and digestion of technology, the production equipment, process equipment and infrastructure of the industrial and commercial refrigeration and air conditioning equipment industry have been greatly improved, so that the technical performance, specifications and production capacity of the products have been greatly improved and expanded. It has laid a solid foundation for the development of the industry. 1.2 The rapid development stage of the industry From 1989 to 1998, in the first 10 years after the establishment of the association, with the further deepening of China's economic reform, China's refrigeration and air-conditioning industry has entered a period of great development. The obvious feature of this period was the transformation of imported technology into the stage of foreign investment introduction with extensive joint ventures and cooperation with foreign companies. 1.3 The technical strength of the industry is gradually improving 1999-2008 is a period of gradual improvement of product quality in China's refrigeration and air-conditioning industry. The production model of domestic enterprises has changed from simple introduction and imitation to the formation of basic independent research and development capabilities through self-cultivation, which has promoted the improvement of the overall technical level of the industry. 1.4 The stage of substantial improvement of industry technical strength In 2009, the refrigeration and air-conditioning manufacturing industry was fully exposed to the impact of the global financial crisis in the first half of the year, and the development of the entire industry experienced its first negative growth in more than 20 years. This situation has both pros and cons: on the one hand, it leads to an increase in the difficulty of operating in the industry; on the other hand, this situation also prompts the industry to move from simple manufacturing to independent research and development. 2 Industry situation analysis 2.1 The market scale is still maintained According to the monitoring data of the National Information Center, under the combined effect of the above various unfavorable factors, the overall domestic retail market scale in the freezing year of 2008 was 24.5 million units, a decrease of 9.31 percentage points compared with 26.3 million units in the same period last year, but from the current From various perspectives such as the overall production scale and export ratio of China's air-conditioning industry, the domestic retail market of 24.5 million units is still sufficient to support the development of the overall industry. 2.2 Increase in average price Increase in the proportion of high-end products Due to the sharp increase in the price of raw materials, coupled with the increase in labor costs and transportation costs, the cost pressure of production companies is generally higher than in previous years.In order to digest costs, production companies generally increase the proportion of mid-to-high-end products, while taking advantage of new product listing opportunities for product prices. After adjusting accordingly, despite the various pressures from the distribution channel to control the price level, from the perspective of the entire freezing year, the overall average price of air conditioners has remained 1 There is an upward trend in stability. 2.3 The international market continues to grow and growth slows From the data of the past two years, the growth of the international market for air conditioners has generally slowed down. Domestic companies have made intensive efforts through product quality and overseas channel expansion.They have still achieved growth in overseas markets, but due to the impact of the US financial crisis on the global economy, the growth rate has declined. Due to the general increase in prices, the growth of export volume is higher than that of export volume. 3 Industry development trends 3.1 Frequency conversion, globalization and environmental protection With the acceleration of the reform of China's economic system, the central air-conditioning industry, like other industries, is facing unprecedented tremendous challenges and opportunities. What direction should the air-conditioning industry develop into the hot topic that people in the industry are most concerned about? The most dynamic brand air-conditioning manufacturers in the Chinese market, such as Xinke, Hisense, Haier and Midea, all believe that frequency conversion, globalization and environmental protection are the future of air conditioning Three major trends of development. Inverter air conditioner, as a replacement product of air conditioner, was favored by consumers with its remarkable advantages such as constant temperature, energy saving, ultra-quiet, etc. The application of inverter technology, efficient DC inverter compressor combined with advanced control technology, greatly reduced The impact of large current when air-conditioning products are started: advanced software design, precise control and automatic optimization of the overall internal flow, so that the compressor, heat exchanger and electronic control components in the entire system achieve the most accurate and reasonable configuration and operation. Significant progress will be made in energy saving. 3.1.1 Advantages of frequency conversion technology "Frequency conversion air conditioner" adopts more advanced technology, the voltage is small when starting, and it can be started under low voltage and low temperature conditions. This is for some areas due to unstable voltage or low outdoor temperature in winter. When the air conditioner is difficult to start, it has a certain improvement effect. Due to the stepless speed change of the compressor, it can also adapt to the heating requirements of a larger area. Advantages of frequency conversion technology: 1) Fast cooling or heating. 2) Better comfort. 3) There is no large current impact on the circuit when the inverter air conditioner is started. 3.1.2 Two major factors restrict the development of frequency conversion There are still two huge stumbling blocks that cannot be circumvented or pushed on the road of frequency conversion. (1) Core technical issues. The supply chain of inverter air conditioners is not news. Whether it is inverter compressors or circuit control systems, it is now in the hands of foreign brands. (2) Cost performance. Insufficient technology platform can make you slack, and the product maturity is not high, you can improve. In fact, the core problem of the slow development of the inverter is the cost and price of the inverter air conditioner. Can the inverter air conditioner enter the main sales price segment. 3.2 Residential central air conditioning 3.2.1 Residential central air conditioning There are many forms of residential central air conditioning, and there are currently two types commonly used in the market: ① A small air-water heat pump outdoor unit with several indoor coils. Because the system is relatively simple and economical, it is currently widely used in China. The disadvantage is that it is easy to drip and mildew, and the reliability of winter operation needs to be improved. ②Small air-air heat pump, outdoor unit has built-in compressor, condenser and various auxiliary accessories, indoor unit has built-in evaporator and expansion valve. 3.2.2 Multi-line multi-connection variable refrigerant heat pump air conditioning system, which uses refrigerant as the transmission medium, the outdoor host consists of outdoor side heat exchangers, compressors and other refrigeration accessories, and the end is composed of direct evaporative heat exchangers and fans composition. At the end of the multi-connection system, there are a variety of forms such as ceiling card type embedded, air duct connection type, wall hanging type, hidden type, etc., which can be well matched with indoor decoration and personalized requirements, and the control is also very convenient. The disadvantage of this form is that there are many refrigerant pipes, which are easy to leak, the fresh air is difficult to solve, and the installation is more complicated. Due to the high price, only some high-income families use it in China. 3.2.3 Centralized central air-conditioning in the community Centralized air-conditioning in the community has developed rapidly in recent years. Due to the following problems: more engineering investment, more troublesome system maintenance, difficulty in accounting for households, and low system utilization factor, resulting in high system operating costs, etc. Wait, real estate developers are generally reluctant to engage in centralized central air-conditioning in residential quarters, so there is not much use of centralized air-conditioning in residential quarters. However, with the development of central air-conditioning technology, residential central air-conditioning will also mature, providing more choices for residential central air-conditioning. 3.3 Development and application of new technologies for refrigeration and air conditioning 3.3.1 Magnetic refrigeration technology Magnetic refrigeration technology is a new green refrigeration technology. Compared with traditional gas compression refrigeration technology, it has the following advantages: (1) No environmental pollution. (2) High efficiency and energy saving. (3) The device has a compact structure and low vibration and noise. Therefore, magnetic refrigeration technology may replace traditional gas compression refrigeration and is an energy-saving and environmentally friendly refrigeration technology with great development potential. 3.3.2 Ice storage technology Ice storage air conditioning uses non-peak electrical energy to make the refrigerator operate in the best energy-saving state, and partially or completely releases the amount of cooling required by the air conditioning system in the form of sensible and latent heat to meet the cooling of the air conditioning system During load, the cold released by melting ice is used to meet the cooling load of the air conditioning system. The container used to store ice becomes a cold storage device. Ice storage air conditioning technology can play a role in peak shifting and valley filling of electricity consumption, and can be enhanced The stability of the system, and can greatly improve economic efficiency. 3.3.3 Solar Refrigeration At present, the commonly used solar refrigeration air-conditioning technology mainly has the following types: 1) Absorption solar air-conditioning. 2 2) Jet solar air conditioner. Solar cooling has the following advantages: First, energy saving, second, environmental protection, and another advantage is that the supply of heat and the demand for cooling capacity are highly matched in season and quantity. 4 Conclusion Nowadays, various types of central air conditioning products have become more and more mature, the centralization of central air conditioning performance and quality is becoming more and more obvious, and high-performance motors, compressors, controllers, magnetron valves, sensors and other key components used in air-conditioning products are becoming more and more important. Becoming the barriers and obstacles to the development of China's central air-conditioning industry, it also makes it difficult for most domestic central air-conditioning products to catch up with or exceed the production level of international advanced manufacturing enterprises in a short time. For the industry, after half a century of development, especially the rapid development of the 30 years of reform and opening up, all infrastructures are very complete, laying a solid foundation for further development in the future. If the resources of the industry can be better optimized and used, the backward products will be eliminated, the full development of the market application of energy-saving and environmental protection products will be promoted, the research and development of core technologies will be strengthened, the overall strength of China's refrigeration and air-conditioning industry will be improved, and it will leap into the world's refrigeration power. The list will be just around the corner.

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