Has the ammonia synthesis water cooler been replaced?
Thread Content
In ammonia synthesis water coolers, there is a large pressure difference between the tube side and the shell side; the syngas contains ammonia, which makes it easy for the welds on the tube sheet to leak. Scaling has to be removed during each major repair, and there are many leaks, all of which affect the heat exchange efficiency. How’s it going for everyone in the industry? Please share!
Are there any issues with water quality and temperature differences? It should not scale up frequently
This issue depends on the specific equipment conditions and operating environment. Generally, ammonia synthesis water coolers require regular maintenance and repair during use, including the removal of scale and the fixing of leaks, in order to ensure efficient heat exchange and the proper operation of the equipment. If the pressure difference of the equipment is very large, it may be necessary to consider replacing it with a new one. This is because an excessive pressure difference can lead to unstable operation of the equipment, and may even damage it. As for whether the equipment needs to be replaced, it depends on its actual usage conditions, including its service life, operating status, and maintenance level. If the maintenance cost of the equipment is too high, or if its performance has significantly declined, it may be necessary to consider replacing it with new equipment. As for the specific timing and method of replacement, it still needs to be determined based on the company’s own financial situation and the condition of its equipment. .
This needs to take into account factors such as the local environment. The ammonia coolers in my previous company used coil-type water coolers; there was no need for a shell-and-tube design, as the cooling water simply overflowed from the tray distributor to carry out the cooling process. For shell-and-tube water coolers, it is recommended to supply and discharge water in segments; during routine maintenance, stop the water flow in segments to dry out and remove scale, and finally rinse the tube side with water
Syngas contains ammonia; if it leaks into the circulating water, scaling will occur :)
From the perspective of design improvements for water coolers, the temperature difference should not be too large; where possible, a series configuration is recommended, with the first stage using a sleeve type design and the second stage using a shell-and-tube type design
Are you Jianfeng Chemical?
Yes, the leakage in this heat exchanger significantly affects its heat exchange efficiency, which in turn keeps the load on the chiller at a high level