Precautions for planning request for mechanical rubber seals for autoclaves?

Precautions for planning request for mechanical rubber seals for autoclaves?

What are the requirements for planning mechanical rubber seals for autoclaves? What matters should be paid attention to? 1. Seal material (seal raw material) - mainly refers to the seal material (raw material), the unreasonable pairing of the sealing pair, and the abnormal wear and leakage caused by the mechanical seal of the cauldron. The requirements for sealing materials include the use of high pu value paired seal materials, high mechanical strength and good wear resistance. Second, the strength of the seal - under high pressure, the fluid pressure will deform the secondary end face of the seal, and the mechanical seal for the kettle will increase with the increase of the medium pressure, and the starting torque will increase accordingly, so it is necessary to choose high strength seal information. 3. The smoothness of the seals - the conflict, wear, heat and other factors of the mechanical rubber seals will affect the life of the mechanical rubber seals, so lubricating oil should be selected. The mixing reaction kettle currently used is vertical, and the mixing shaft is made of The top is pierced, and the seal is installed on the upper part of the kettle. Most of the odd peaks in the kettle are in the gas phase. Therefore, it is not practical to smooth with the liquid in the kettle. When using single-end mechanical rubber seals, an oil storage cavity should be provided; when using double-end mechanical rubber seals, it is necessary to force the liquid supply to smooth the mechanical rubber seals. Considering maintaining the smoothness and airtightness of the end face of the mechanical rubber seal, it is best to use high-grade lubricating oil. The selection principles of lubricating oil are: 1. Excluding particles, long-term oxidation resistance and good stability; 2. Simple degassing, not easy to deposit and degenerate and good smoothness; 3. Good rust resistance; 4. According to the operating pressure, the temperature in the kettle , the viscosity of the oil selected by the circulation method.