The cooling way of chillers is divided into air cooling, water cooling and evaporative cooling. The most widely used market is water cooling units. What are the advantages and disadvantages of air cooling? First, the air cooling condenser can save the cooling tower and the water pump and the water source, the installation is more convenient, but the air cooling is most suitable for the small power unit, and the air cooling is better from 2HP to 15HP. But if the compressor number is larger, the volume of the wind condenser is larger, the transportation is not convenient, and the place is more than the place. If the ventilation is not good, the heat dissipation effect is poor, the high pressure pressure in the system which is caused by the bad heat dissipation in the summer is too high, and the compressor is self protecting. The phenomenon of shutdown. And the cost of manufacturing is higher than water cooling.

 

 

 

 

Ice maker is a kind of refrigeration equipment that generates water through evaporator, which is cooled by refrigerant and refrigerant. According to the different principles of evaporator and production process, the shape of ice is different. There are still many blanks in the research of energy efficiency level of the ice making machine in our country. The national policy of building a good and innovative country from the overall environment of our country has created a better policy for the more rapid development of the ice making machine industry. A.

 

 

 

After decades of development, both production scale and technology level have been greatly improved, and play a more and more important role in the national economy. However, due to the wide application fields of refrigeration equipment, the requirements in different fields are also different. With the rapid development of various industries, the demand for refrigeration equipment is also increasing. From the current perspective, China's refrigeration industry still has three major shortcomings.

 

First, the imported advanced technology cannot be timely digested and absorbed. In the industrial field, China's refrigeration industry and foreign contact is relatively early. In the middle of 1980s, our country began to introduce advanced foreign technology and set up some joint ventures. But at present, the technological progress of the refrigeration industry in our country is far from meeting the needs of other industries. Especially, some advanced technologies and products can not be developed independently.

 

 

 

Two, the overall quality of the refrigeration industry needs to be improved. Like other industries in China, there is a serious lack of advanced technicians in refrigeration industry at present. Most of the old technical and technical workers have retired, and the new technicians are unable to make up for them. This phenomenon has seriously hindered the healthy development of the refrigeration industry in China. Therefore, experts suggest that enterprises should hire old skilled workers with unique skills to bring their apprentice to their apprentice through "pass, help and bring" to alleviate the contradiction of the shortage of skilled technicians in China.

 

 

 

The three is the lack of investment in technology development, the serious brain drain, and the unknown brand of domestic brands. As we all know, refrigeration compressor is the key part of refrigeration equipment. But when it comes to compressor, the first thing people think of is the brand of the United States. Their products are of high quality and have been deeply rooted in the market. And domestic production enterprises, in order to prove their good products, quality assurance, always like to tell the user: our products are imported compressor. Over the years, a concept has been found in the minds of Chinese people. Only by adopting the refrigeration equipment of foreign compressors, the quality of products can be guaranteed. The compressor of domestic brands will no more "in the light of day".

 

In recent years, all countries in the world have ceased to continue the fluorine containing refrigerants. The European Union has banned the use of it in 2002. Japan has banned its use in 2004. The United States has also stopped its production and consumption in 2010, and China has just started. China is currently the world's largest producer and user of refrigerant with intermediate fluorine content, which accounts for 65% of the world's total production and accounts for 40% of the world's total refrigerant production.

 

According to the provisions of the Montreal protocol, the production and use of refrigerants with intermediate fluorine content in developing countries in 2013 were frozen at the average of 2009 and 2010, in 2015, 10% in this freezing level, 35% in 2020, 67.5% in 2025, 20 in 2025. 30 years to achieve complete elimination except for maintenance and special purpose. China, as a developing country, must strictly perform its contract.

 

 

 

The development of refrigerants reflects the development of science and technology in human society, and also reflects the enhancement of people's awareness of environmental protection. It can be seen that the development of refrigerants in the future must be towards the direction of environmental protection and energy saving, and the development of refrigerants will promote the development of ice making machines.