Differences among refrigeration units from different brands

GEA’s are still better to use, with a very low failure rate

What do you think are the differences compared to domestic products? Why GEA’s equipment is good. . The same instruments, the same heat exchangers and pressure vessels, the same valves and pipes.

Our factory is installing York and Wuhan New World (Wuleng) units for new equipment. Haven’t driven yet…

I have never used a foreign-made freezer. I don’t know how to compare.

The last edit to this post was made by strikefreedom on 2019-11-3 at 11:13. Those that have used the Binglun model find its operation to be relatively stable and its level of automation high. Later, due to disputes over the warranty deposit, PCL control was no longer available, so everything had to be done manually; however, the workload wasn’t heavy； Wu Leng also used three units; perhaps the one he used had a low level of automation. In particular, the oil return mechanism seemed subpar – a large amount of oil accumulated in the evaporator over time, and the oil was not returned in a timely manner ； Recently, I have been using the cooling units from Tianjia Air Conditioning; they feature a high degree of automation and a compact design. The current drawback of the unit is that the vibration amplitude and frequency at the location of the pressure sensor at the unit’s inlet are quite high, which can easily lead to the damage of the signal wires; it’s not clear whether this is an isolated case. Overall, the unit with Wu Leng that was used earlier had the worst user experience (this does not apply to all Wu Leng units, only to the one that was used).

First of all, your attitude is truly serious; you are discussing the issues with great seriousness. The Tianjia model has a compact design; it uses a semi-hermetic compressor, while the Binglun and Wuleng models employ open-type screw compressors. Compared to open-type compressors, semi-enclosed compressors have a limit on their cooling capacity; open-type compressors can achieve a much higher level of cooling. Semi-enclosed compressors are therefore suitable for applications that require lower cooling capacities. The open type is suitable for low-temperature environments, while the semi-enclosed type is suitable for such environments as well; however, since its motor is located at the suction side, the suction pressure is low, which leads to reduced insulation and an increased risk of the motor being damaged. Tianjia semi-hermetic compressors are suitable for applications with temperatures above -20°C and low cooling capacity. Low price, compact design, and stable operation. Wu Leng’s equipment, due to a lack of innovation over time and poor quality, has been acquired by Da Leng. If there are any issues later on, feel free to reach out.

GEA: 1. The failure rate of the unit is roughly similar to that of the large cooler; neither one tends to experience problems easily； 2. The maintenance costs are exorbitantly high, basically 5 times higher than normal ； 3. The user interface is not user-friendly ； 4. The data is then organized neatly, making it easy to store and retrieve ； 5. The welding quality of the evaporator varies across several levels for high-performance cooling systems; 6. The overall price of these units is relatively high, with similar COP values for cooling units of different brands ； 7. The unit has few minor issues, such as instrument failures ； 8. The cooling temperature of the unit’s economizer is set quite low; ours is designed with an outlet temperature of -20°C, which is about 20°C lower than that of larger systems ； Extreme cold: 1. The dry-type evaporator is complete trash – there are leaks at every weld ； 2. There are many minor issues; strange problems often arise, such as the inhalation check valve not rebounding and angular displacement faults, etc ； 3. The maintenance costs are low, but it seems somewhat lackful of precision; GEA’s maintenance approach feels like an art form, while in very cold climates it’s just a small workshop with two people working there ； 4. Similar to the problem with GEA, thermal expansion valves basically stop working after about 6 months of use from when they are new (it’s not clear whether it’s my own issue or if this is simply how Danfoss’ products behave) ； Binglun: We had only one unit; due to issues with payment methods and after-sales service, it managed to operate for barely 2 years before being scrapped. It has now been taken apart and sold as scrap metal ； York: Currently, one screw compressor and one centrifugal compressor are in use, while the others are not yet in operation; they will be put into use soon ；

First of all, for industrial refrigeration equipment, the main fundamental difference lies in the compressor and the control system. Both the design and configuration can be unified. The operating conditions vary, and the design standards differ as well; in other words, most industrial refrigeration systems are custom-made devices. The structure of a refrigeration unit includes a compressor, pressure vessels, heat exchangers, valves, and pipelines. With the exception of the compressor and the control system, everything else can be designed according to the customer’s requirements. The compressor and control system can also be customized according to the customer’s requirements, but this does not offer any advantages. The main differences between domestic and foreign versions lie in the compressors and control systems, which are the most critical components. While foreign systems use automation, ours are still manual; however, we are making progress as well – domestic versions are now being automated, and the programs are continuously updated according to customer requirements! ! The machining equipment for Binglun compressors also uses the same rotor finishing grinder as that used for York GEA. The gap between domestic and international levels is continuously narrowing! Finally, bro, what’s the situation with that Binglun device? Could you explain it in more detail? The bearings of a compressor are supposed to last around 3 years with continuous operation, so why did they fail after just 2 years?

I don’t quite understand what you mean by core and precision. For our clients, no matter how many times more precise your measurements are, it has no impact on my Cop, nor on the maintenance cycle of my equipment; we consider it useless. Everything has only one central point of benefit. The machines from Binglun have been leaking oil all the time; in just 2 years, over 20 of the full-fluid evaporators became clogged. It’s really unbearable