High temperature of mechanical seal
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What are the reasons for the high temperature of the mechanical seal? It operates at 80-90 degrees, transports media at normal temperature, and occasionally emits smoke.
Is the mechanical seal temperature high? Too high? Too low? Is there a sealed flushing solution? Is there cavitation in the equipment? Have there been any changes in flow rate and pressure? All these factors determine the operating conditions under sealed conditions; it is not possible to make a judgment based solely on high temperature
High temperature and smoking may be due to a lack of lubrication, an empty pump, or an overly tight mechanical seal installation.
No, the original design called for water cooling, but there is no circulating water. There are three pumps in total, and the other pumps and this one were manufactured by the same company; the temperature is normal. Only the temperature of this pump is high. Sealing type 53B
Mechanical seals have a cooling water supply for the seal housing, and this supply is usually external. Another type of water is used for cooling and lubricating the mechanical seal surfaces; it is generally the same type of water as that used to transport the medium. A failure in either of these two water circuits can cause high temperatures (a failure in the cooling water for the cooling system generally does not result in smoking). Another reason is that overly tight adjustment of the mechanical seal spring can also lead to an increase in the temperature of the seal interface.
It uses through springs; one spring seat is equipped with one through spring, and one spring controls two moving rings. Cooling is achieved through circulating water that cools the white oil, which in turn absorbs the heat. .
Is the compression too great, causing the stationary and rotating rings to stick together? Is it tight when the rotor is turned?
It’s fine; all the gaps have been measured and there are no issues.
The 53B system has poor circulation and cannot remove heat.
If it’s a mechanical seal with a large spring, please check again whether the rotation direction of the spring is reversed. The symptoms seem to indicate a problem with the compression amount; it’s recommended to examine this again