A. The installation reactor seal 
 1. Check for installation of the mechanical seal type, specification is correct.
 2. Check the host that is associated with the installation of the mechanical seal parts size accuracy and geometric accuracy and mutual relationship meets the technical requirements.Basically has the following several aspects:
 1) The installation of mechanical seal parts of the shaft radial runout tolerance (or collar), the surface finish and outer diameter of the shaft (or bush) size tolerance.
 2) Seal cavity and gland with a shaft positioning end facing (or bush) the center line of the vertical degree of tolerance.
 3) The installation ring seal end of the shaft (or collar), the installation of mechanical seal shell hole end chamfering of structure and finish.
 4) The mechanical seal rotor axial displacement at work.
 3. In the process of the installation of mechanical seal, should maintain clean, tapping sealing element, and are not allowed to use tools to prevent injuries and damage.
 4. When installation, dynamic and static ring surface should be coated with a layer of clean oil and turbine oil.Auxiliary seal ring (including ring sealing ring and static ring sealing ring) before installation also need to apply a layer of clean oil or turbine oil, to ensure the installation smoothly. 
 5. The static ring seal trap after static ring back, in sealed inside the end cover, should pay attention to not hurt the static ring end face, to ensure the static ring end face perpendicular to the center line of the end cover, and pay attention to the static ring back anti-rotating slot to stop pin, but can't contact.
 6. The mechanical seal rotating part, rely on the spring seat of two fixed screw on the shaft, tighten the set screw, to ensure the working length of spring. 
 
 B. The use of reactor seal:
 1. The host before starting, need to check the attached mechanical seal device, cooling and lubrication system is perfect.
 2. Pipe should be cleaned before starting materials to prevent rust impurities into the sealed cavity.
 3. With the hand disc coupling, check whether shaft rotate easily, if the dish is very heavy, need to check the installation dimensions are correct.
 4. Normal before driving, need a static pressure test, check the mechanical seal face, sealing ring and the sealing effect of sealing end cover, if any problem, check to solve them one by one.
 5. The host before starting, we should keep the sealed cavity filled with fluid or sealed by the media, have separate seal system shall be starting, such as cooling water system should also come into circulation.
 6. Normal before use, first to atmospheric pressure, observe whether the rise of temperature of the sealing parts is normal, ever leak phenomenon.If there is a slight leakage, can run one period of time, the transverse joint more evenly, until leakage was gradually reduced to normal.1-3 hours, such as operation still don't reduce leakage, need to stop it for checking.
 7. Working condition of normal operation, the booster heating can slowly, respectively, and pay attention to the temperature rise of end face and the leakage situation, if everything is normal, that can be used in production.

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