Lying in a cold place can easily cause gas buildup
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The workshop is equipped with reaction vessels, and these vessels have horizontal coolers; blockages in these horizontal coolers can easily occur during operation. There are two horizontal cooling circulation systems, each connected to several reaction vessels. The reaction vessels connected to one of these horizontal cooling circulation systems are prone to air blockages in the horizontal cooling system, while the reaction vessels connected to the other system rarely experience such issues. 1. For some reason, two identical devices produce different results. 2. After an air blockage occurs, it takes a long time to drain water from the high-level drainage points in the horizontal cooler. It is not clear what causes this, and how should it be rectified technically. 3. How to prevent air blockages as much as possible, rather than having to drain water after they occur; this is because high temperatures in the cold reservoir once such blockages arise pose a safety risk and also cause issues with the system’s temperature. Thank you all.
A horizontal condenser should have an air outlet next to the water outlet; at the lower end of the condenser is the cooling water inlet, while the other end is the water outlet. There is also an air vent next to the water outlet. If there is still high temperature despite the presence of an air vent, then it’s necessary to check the baffle plates in the heat exchanger tubes
It’s possible that the baffle plates in the heat exchanger tubes are in the wrong direction and position
Since you are aware of the air blockage issue, it indicates that there is poor ventilation in the shell side of the cold exchanger; one possible cause is a problem with the design of the internal baffle plates. The second is the issue of external cooling water pressure; there is always a reason for it
Look up the tolerance specifications; remember that it’s possible to create exhaust holes with a diameter of 10–25 at the point where the baffle is close to the cylinder wall!
The simplest way is to create a small vent at the highest point of the condenser to allow air to escape
1. When the process gas passes through the heat exchanger, there should be a connecting pipeline to allow for the release of pressure from the process gas or to vent any gases that cannot be condensed; make sure this pipeline is open. 2. In the case of cooling liquids, simply venting the air is sufficient (make sure the flow rate in the cooling pipelines of the equipment is normal)