Causes and Elimination Methods of Reactor Seal Leakage

As the main reaction equipment in chemical production, stainless steel reactors are widely used in chemical, pharmaceutical, food and other industries. The material is made of 304 stainless steel. Pollution-free, electrically heated stainless steel reactor, automatic heating without a boiler, easy to use, and cheap.

stainless steel reactor

The reactor may leak after being used for a long time, but many people don’t know how to find the problem? Today I will answer it for you:

Problem causes：

Machinery Seal 
       1. The end face of the dynamic and static ring is deformed and bruised;
       2. The operating pressure and temperature are unstable, and hard particles enter the friction pair;
       3. The specific pressure of the end face is too large, and the friction pair produces thermal deformation;
       4. The amount of shaft string exceeds the index;
       5. The material of the sealing ring is wrong, the pressing force is not enough, or the V-shaped sealing ring is installed backwards, and the sealing is lost;
       6. The vertical error between the axis and the end face of the static ring is too large;
       7. Seam leakage of inlaid or bonded dynamic and static rings;

Packing seal:
       1. The position of the oil ring is improper or the oil circuit is blocked and cannot form an oil seal;
       2. The agitator shaft is worn or corroded at the filler, resulting in an excessive gap;
       3. The gland is not tightly pressed, the quality of the packing is poor, or it has been used for a long time;
       4. Stuffing box corrosion.

Approach:

Machinery Seal 
       1. Replace the friction pair or re-grind;
       2. The material of the sealing ring should be selected, the installation should be reasonable, and there should be enough pressing force;
       3. Adjust the specific pressure to be appropriate, strengthen the cooling system, and take away the heat in time;
       4. Stop the machine and re-align to ensure that the non-perpendicularity is less than 0.5mm;
       5. Adjust and overhaul to make the shifting amount of the shaft reach the standard;
       6. Strictly control the process indicators, and the particles and crystals cannot enter the friction pair;
       7. Improve the installation process, or the amount of interference should be appropriate, or the adhesive should be easy to use and firm.

Packing seal：
       1、Replace or repair the mixing shaft and process it on the machine tool to ensure roughness.
       2、Compress the packing, or replace the packing.
       3、Adjust the position of the oil ring and clean the oil circuit.
       4、Repair or replace.

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