2021 China International Air Conditioning, Heating, Ventilation, Refrigeration and Cold Chain Expo (RACC2021) is a professional exhibition with great industry influence in China. This exhibition owns the advantages of Zhejiang refrigeration industry base and aims to create a new international business card in China, and has received strong support from the governments of Zhejiang Province at all levels. It is co-organized by China Council for the Promotion of International Trade (CCPIT) Construction Industry Branch,Department of Commerce of Zhejiang Province,China Association of Warehousing and Distribution,Zhejiang Association of Refrigeration,Zhejiang Refrigeration and Air-conditioning Industry Association,Jiangsu Association of Refrigeration and Zhejiang Fluorochemical Industry Association to create a world-renowned international refrigeration exhibition. KITDOO refrigeration equipment company is a famous refrigeration equipment manufacturer in South China. KITDOO was invited by the Organizing Committee of Hangzhou International Air Conditioning, Refrigeration and Cold Chain Industry Exhibition (English abbreviation: RACC). Participated in the exhibition and attended the opening ceremony of the exhibition. After participating in the opening ceremony, the leaders of KITDOO highly affirmed the exhibition and wished the exhibition a successful conclusion. Looking forward to exhibitors participating in the exhibition have a beautiful display on this platform. The exhibition gets better and better. At this exhibition, the unit coolers, condensers and cold room refrigeration units brought by our company are displayed. Discuss all aspects of the development of the cold chain industry with customers at the exhibition.

On October 1, 2021, I will celebrate the 72nd anniversary of the founding of the People’s Republic of China. Before this universal day of celebration comes, KITDOO wishes you all a happy National Day. According to national regulations, our company will be closed from October 1st to 7th.  During the break, the production base will suspend production. Customers who need to place an order, please make arrangements in advance to avoid insufficient supply of goods during the holiday.  KITDOO provides customers with professional one-stop cold chain solutions.

Recently, it is difficult to book cargo ships. Several condensers with fan evaporators and condensing units of Chilean customers have been stored in the warehouse for a week. Today, the goods are finally loaded into the container and ready to be shipped. Thank customers for their understanding. KITDOO specializes in the production of refrigeration equipment and provides customers with professional cold chain optimization solutions.

After 300 days of hard work day and night, the new high-efficiency condensing unit jointly developed by KITDOO and universities has begun to be put on the market. According to laboratory data, the energy efficiency of the new high-efficiency condensing unit is 15% higher than that of ordinary products, and the power consumption is reduced by 30%. In the cold storage working process, the specified temperature is reached faster than previous products. KITDOO would like to thank Professor Chen's scientific research team who assisted in this project for their technical support in this event. This project mainly realizes the high efficiency and energy saving of the product through 4 parts. 1. Efficient air-cooled evaporator. The air-cooled evaporator of this project uses copper tubes with high heat exchange performance, which increases the heat exchange performance by 15%. Moreover, the flow direction of the refrigerant is optimized to reduce unnecessary pressure loss. Finally, a large air volume, high-quality fan is used to fully evaporate the refrigerant. 2. Efficient compressor The compressor is the heart of a refrigeration system, and the quality of the compressor directly affects the effect of refrigeration. KITDOO has long-term cooperation with big international brands such as Bitzer to ensure product quality. 3. Efficient condenser The condenser produced by KITDOO uses high-efficiency copper tubes and high-quality aluminum fins. The quality and effect of the products are in a leading position in the industry. The product with the same heat exchange area has a cooling capacity of 20% higher. 4. Self-developed intelligent refrigeration control system. KITDOO's products all use frequency conversion technology. The intelligent control refrigeration system developed by the team of Professor Chen from the university can monitor the changes in the temperature of the cold storage in real time, as well as the pressure, refrigerant temperature and other parameters in the refrigeration system. The automatic control system can automatically adjust the frequency of the compressor and fan, as well as the opening of the solenoid valve, and finally achieve the effect of high energy efficiency and low energy consumption. After the product was launched on the market, it received unanimous praise from users.

As a professional manufacturer of refrigeration equipment such as condensers, evaporators, KITDOO provides customers with one-stop cold chain solutions to help customers solve various refrigeration problems. Our products sell well all over the world. Today, we sent two containers of goods to Dubai again. The goods this time are mainly air cooled condenser, evaporators for cold storage, and condensing units. The refrigeration equipment produced by KITDOO has an excellent reputation in Dubai and is of high quality. It can operate in Dubai's high temperature, windy, and sandy weather for a long time without failure. The outlet condenser has multiple specifications, 1.5HP, 2HP, 5HP to 10HP. This product is mostly used in small-scale seafood fish pond constant temperature equipment, swimming pool constant temperature equipment, and seafood storage.

Two 13-hp condensing units independently designed by our company according to customer requirements are being packaged and ready to be shipped to Malaysia. This condensing unit uses a high-efficiency heat dissipation condenser produced by KITDOO, and its heat exchange effect is 30% higher than that of ordinary condensers. In addition, the equipment uses scroll compressors produced by Copeland. Product performance and quality are guaranteed.

2020 is a difficult year. According to the needs of our customers, our company's export volume in 2020 is steadily increasing over 2019. In order to better expand the market, understand the needs of customers, and the development direction of the market, FOSHAN KITDOO REFRIGERATION EQUIPMENT CO.,LTD will participate in the 2021 Shanghai International Refrigeration Exhibition. At the exhibition, we communicate with new and old customers. In the process of communication, we understand the needs of customers, so as to better improve our products and services. At the same time, we are not grateful to customers for their affirmation of our work and products (such as air coolers, condensers, condensing units).

I believe that many of my friends will encounter such a problem, the frost behind the expansion valve! So why is it frosting? How to solve this problem? With these questions we will look down. Discussion and analysis: 1. Someone will first consider whether the expansion valve is blocked or the opening is too small. 2. Some people will consider whether it is caused by a fault in the fan. 3. Of course, some people will analyze it from the direction of frost. Of course, this is only part of the reason that a small group of friends think of. To sum up, about the direction of frosting in the refrigeration system. Everyone knows that the frosting direction is divided into different directions, there are mainly the following two kinds: 1、Starting from the compressor's return port, frost will gradually form towards the evaporator. 2、Frost forms from the expansion valve to the evaporator. 1. Frost begins to form on the air return Frost begins to form at the air return, which is mainly analyzed from the following two aspects: 1）. Refrigerant The reason is that too much refrigerant enters the evaporator, resulting in incomplete evaporation, so the return pipe is still evaporating, absorbing the heat of the suction pipe, so the return pipe is frosted first. The reasons are: a. Too much refrigerant; b. The expansion valve opening is too large; 2）. The evaporator The evaporator cannot absorb heat normally, or the cold generated by the evaporator cannot be taken away, which will cause incomplete evaporation, and the refrigerant will continue to evaporate and absorb heat in the return air pipe, resulting in frosting of the return air pipe. The appearance is that the return liquid temperature and pressure are normal or slightly lower, and the frosting starts from the compressor air return port to the evaporator. After a long period of time, it freezes from the compressor air return port to the evaporator and the throttle valve to the evaporator section. , And finally there is low pressure. The reasons are: a. Check if the air filter is clean; b. Check whether the fan speed is normal; c. Whether the evaporator is clean; d. Whether the air supply system is blocked; 2. the expansion valve begins to frost The frost behind the expansion valve is mainly analyzed from the following three points: 1). Less refrigerant (leakage) The return liquid temperature of the condenser is high but the pressure is not high, and the frost starts to form gradually toward the evaporator from the throttle valve. 2). The opening of the expansion valve is too small The return liquid temperature and pressure of the condenser are normal or slightly lower, and frost begins to form at the throttle valve gradually toward the evaporator. 3). Check the sight glass Depending on the condition of the refrigerant, serious foaming may be caused by system leakage; the refrigerant in the sight glass does not bubbling or seldom bubbling, it may be that the expansion valve is opened too small or block...