The synthetic water cooler has broken down 2 times already

The main reasons for coolant cooler leaks are substandard equipment materials, manufacturing quality, and welding techniques (including incorrect selection of welding electrodes). Look for the reasons from this perspective.

I’ve heard from people with production experience that it’s common for the water coolers in the synthesis section to break down. This might be related to the material used in the equipment. However, according to experts, since most of the water coolers used in this section are of the U-tube type, when there is a large temperature difference between the inlet and outlet of the material, different thermal stresses are applied to these ends, which can cause deformation and eventually lead to cracking. Experts believe this is the main reason why such water coolers tend to fail. Therefore, I believe the key to solving this problem is to find a suitable water cooler model that can replace it.

If a problem occurs, the possible reasons are: 1. The quality of production is extremely poor； In particular, there are issues with the quality of the pipe procurement; since the U-shaped pipe is bent into a single piece without any welds, how can it break? 2. There may also be issues with the operation: the system charges/relieves pressure too quickly, resulting in a large pressure difference that damages the diaphragm ； Additionally, there may be liquid in the inlet pipe; rapid pressurization can cause water hammer, which in turn damages the pipe and leads to fractures. 3. The design temperature of the water-cooling inlet is too high; the heat exchange surface area of the exchanger outside the tower is insufficient, resulting in less heat recovery. This leads to a high water-cooling load and a high inlet temperature, as well as a large temperature difference across the tubes, which in turn increases thermal stress.

I have discussed this issue with the staff from the design institute; U-tube heat exchangers are prone to leakage under conditions of large temperature differences and gas erosion, and the problem becomes more severe due to manufacturing defects. Some manufacturers have switched to fixed-plate heat exchangers, while others in the north use air coolers.

The same is true for our factory’s products – the main reason is design and manufacturing defects

I agree with what was said on the fourth floor; a large temperature difference between the inlet and outlet is likely the main cause of the accident.

There are problems with water cooling, which are mostly due to the material quality of the equipment; it is also important to follow proper operating procedures.

We use evaporative air coolers, which work well; however, the initial investment is higher. Their operating costs are low, and they offer good heat exchange performance.

Our factory’s units have been repaired three times already, and in each case it was the partition that cracked. I think it’s not just a problem with the material used for the equipment; it’s mainly a design issue. Since the pressure difference is high, it’s quite difficult to design such devices properly

This issue is probably not a device problem. It should be a general design flaw. We use air cooling here.

We use water cooling, and no problems have been encountered; it’s been two years now. The equipment we have is from Xinxiang, Henan, and it works quite well.

I agree with the view from floor 9. It is recommended that the poster choose evaporation cooling for the methanol water cooler for the following reasons: 1. Evaporation cooling requires less water, which reduces the demand for utility services, especially circulating water; it also saves a significant amount of electricity used by circulation pumps. 2. The evaporation cooling system features a U-shaped structure that helps to eliminate stress. 3. The outlet temperature can be adjusted with precision to within 1 degree Celsius. 4. In winter, when water or power supply may be interrupted, this setup results in lower energy consumption.

It’s the U-tube heat exchanger methanol water cooler designed by Huahua No.2 Institute, right? If I ask manufacturers in the same industry, there’s probably none that doesn’t leak – it’s a design issue; we’ve had to repair it four times already this year.