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315, counterfeit refrigeration compressors, valves, and refrigerants Compressor articles: counterfeit and hardest hit areas

315, counterfeit refrigeration compressors, valves, and refrigerants Compressor articles: counterfeit and hardest hit areas In the field of commercial refrigeration compressors, the form and content of the cottage are very complicated and relatively hidden. It is common to buy second-hand compressors from the second-hand market, make a facelift, refurbish and label them for sale. There is also a kind of assembly or production of cottage products, which are affixed with regular brand names and sold at high prices. In recent years, it has become more popular to add a brand to register, inducing consumers who do not understand the market to be fooled, or xx compressors are the most common. Most people in the industry admitted that from the appearance, it is difficult for non-professionals to identify counterfeit products. Through detection, the compressor can be distinguished by performance parameters such as energy efficiency, reliability, noise and so on. However, it is difficult for general customers to test the performance of the compressor with conditions. The cottage products are not only simple assembly and modification, but also under the name of the cottage and the false facts, which has caused a major blow to the reputation of famous brand products. At the same time, it also hits the market with low prices, with sub-optimal filling and with falsehood, which causes huge losses to customers and branded refrigerant businesses that have been "cottaged". The harm of counterfeit compressor and how to distinguish it from authenticity? The quality of counterfeit products cannot be compared with that of genuine products. The small ones will have defects in the design of use and will not achieve the cooling effect, and there will be after-sales problems after one or two years. There is still a danger to personal safety. Even if the appearance of the counterfeit compressor is exquisite, its performance cannot be compared with that of the genuine one. After flowing into the market, it will bring reputation damage to genuine manufacturers, and at the same time will disrupt the normal market price. What is more serious is that counterfeit products bring unpredictable safety hazards to users. The second-hand or refurbished compressor is extremely harmful because its operating life has basically reached the limit. The compressor, scroll, piston, motor, etc. have far exceeded the normal allowable range. Therefore, there will be a high risk of putting it into use here, and the failure will be very frequent. Even if they have a so-called warranty period, it will cause great losses to your economy. For example: multiple injections of refrigerant, because the refrigerant is not completely recovered every time it is repaired, it will lose about 2/5 of the refrigerant. If you want to achieve the ideal refrigeration temperature, the compressor after maintenance must be renewed Inject refrigerant and replace compressor refrigeration oil. Refrigerating oil is also an expensive accessory for compressors. Normally, the compressor needs to be replaced only once every six months or a year. In addition, the quality of counterfeit compressors cannot be compared with regular compressors. The quality difference between genuine and counterfeit compressors will add unnecessary costs to end users. For example, since the operation time of a refrigeration unit generally exceeds 5000 hours per year, a set of 10 units of minus 18 ℃ cold storage units, if the energy efficiency ratio of the compressor differs by 15%, will bring about 6,000 yuan in electricity costs to end users each year Increase, in the 5-10 years of equipment operating life cycle, the increase in the photoelectric fee is a very considerable cost. If the compressor reliability is poor, then the user's maintenance costs and cold storage cargo losses add up. Compressors coming off the regular production line are numbered for anti-counterfeiting inquiries, and companies also have decades of production experience and tough manufacturing techniques, so there is no deviation in production quality. So, what are the elements of a high-quality compressor? Taking semi-closed piston type as an example, regular products require high manufacturing process, reasonable internal structure, low noise during operation and low vibration, and can work in harsh environments with long time and high strength. The design life is about 12 years, which can be guaranteed Work performance and energy consumption are stable throughout the entire life cycle. The low-performance semi-hermetic piston compressor has a rough manufacturing process, the structure is not optimized, and the noise and vibration are obviously amplified year by year. The capacity attenuation in severe environments is very serious. The conventional one-year warranty, some of which cannot be achieved after 1-3 years Guarantee. The quality of the equipment produced using this compressor cannot be guaranteed, the effect of refrigeration and freezing is seriously affected, and it is easy to consume more and more power after 3 to 5 years and more and more failures. In addition, regular manufacturers have a complete set of mechanisms for both pre-sale and after-sale, which will give users a set of reasonable solutions Valves: The sale of the famous brand near the brand There are many fake and inferior well-known imported brands in the refrigeration accessories products, and some manufacturers will fake the products of the well-known domestic refrigeration accessories brands. The best-selling types such as solenoid valves and four-way valves are the most popular in the refrigeration accessories market. Whether it is a fake or shoddy product or a cottage, its quality can not be compared with regular brands. First of all, the price difference between the superior and inferior valve parts in the market is also very large. For low-priced valve parts, it is generally 30-50% of the price of high-end valve parts. Of course, it depends on the type of valve. It is not excluded that some counterfeit products are cheaper, or counterfeit products are sold at higher prices. It is understood that high-quality valves can operate normally for several years or even decades after installation and commissioning. Poor-quality valves may begin to rust, leak, and burn out coils before the warranty period. In addition, the obvious impact of poor quality valves and high quality valves is refrigerant leakage, and damage to the refrigeration system, especially to the compressor. The potential impact is not limited to this. Inferior quality valves will cause a lot of hidden safety hazards and system waste, which will cause the cold storage users to stop working and cause harm to the food stored in the cold storage, and cannot guarantee the quality of the food. If such food flows to our table, the harm can be imagined. It is understood that the biggest gap between inferior valve parts is in the choice of materials. Generally speaking, the material composition of inferior valve parts is not correct, and the content of impurities is high (many are wastes smelted in the furnace). For valve parts, strength and sealing are very important Inferior valve parts often use seals from informal manufacturers to reduce the material wall thickness to reduce costs and earn profits. At present, the sales price of some products on the market is even lower than the cost, which can explain the problem. On the other hand, I have to admire the ability to imitate inferior valve parts. Its appearance is even more beautiful than genuine ones, and some are difficult to distinguish between true and false. Poor quality valve parts have great hidden dangers to the refrigeration system: (1) The strength of the valve parts can not meet the design life requirements, generally damaged in 1 to 2 years; (2) The seal leakage of the valve parts, causing a large amount of refrigerant leakage, The system cannot operate normally, which affects the service life of the compressor; (3) The large pressure loss affects the energy efficiency of the system and causes energy waste. Refrigerant: Uncover the fake mask Refrigerant fraud is already an “open secret" in the industry, and the methods of fraud are also varied: there are shortages and less, the raw materials are poorly charged, and the cheap and corrosive raw materials of chloromethane and dimethyl ether are mixed in the finished refrigerant Among them, the cost of products is reduced, low-cost refrigerants with similar pressure are used as environmental-friendly refrigerants, and the influence of well-known brands is impersonated. At present, there are several ways to falsify the refrigerant industry: First, posing as a well-known brand at home and abroad. Second, the quality does not meet the national premium standards. Third, the secondary raw materials serve as good raw materials. Fourth, lack two pounds. Fifth, mix R22 and R410a raw materials with low-cost corrosion refrigerants such as methyl chloride and dimethyl ether. Sixth, fill R22 raw materials into the packaging of R410a. Seventh, increase the proportion of R32 medium in the mixed refrigerant R410a, which is lower in price, and lower the raw material in R125, which is relatively easy to falsify. "The areas where counterfeiters are rampant are mainly concentrated in Zhejiang and Guangzhou. Zhejiang is dominated by counterfeit goods, and Guangzhou is dominated by counterfeit goods. The number of counterfeit goods in Guangzhou even accounts for 80% of the country." Insiders pointed out unobtrusively. Industry insiders told reporters that counterfeiters and unscrupulous sellers are increasingly producing and selling inferior products. They come in cheap filling materials from chemical plants, split them into small cans, and then sell them to unscrupulous sellers. The brand of the product has grown from the first few to hundreds, and even reached what brand the customer needs. At the same time, the number of sub-packaged fake dens has also grown from several to dozens, and the individual sub-packaging capacity of some individual dens can be expanded from hundreds of thousands of cans to millions of cans. 80% of the country’s fake and inferior refrigerant products continue to flow to the distribution centers in various regions through convenient transportation, and then flow from the distribution center to the cold distribution warehouses in major cities; from the trading market to the repair shops and retail stores, and finally It is installed on every machine that needs "fluorination" by a maintenance worker. What is more serious is that some inferior products have become well-known local brands, and some fake dens have become local star enterprises and protection enterprises.

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