After the China wholesale deep well borehole pumps is turned on, the end face is swayed and rubbed once per revolution, and the moving ring runs out of concentricity, causing the end face to vaporize and overheat and wear. Injury and fail. When a sealing surface lags behind and cannot track the rotation, the instantaneous high temperature causes the sealing surface to be damaged. ②The shutdown of the high-temperature pump should be carried out in accordance with the provisions of the equipment technical documents.
The damage form must be analyzed comprehensively to find the root cause to ensure the long-term operation of the mechanical seal.2020-02-28 Centrifugal pump shutdown is mainly caused by the failure of the mechanical seal. ②
The coaxiality of the transmission parts of the pump is poor. For example, the high-speed pump speed is 20445r/min, the center diameter of the sealing surface is 7cm, and the linear speed of the pump is as high as 75 m/s after operation. ③The liquid medium has poor lubricity, and the operating pressure is overloaded, and the tracking and rotation of the two sealing surfaces are not synchronized..
The main reasons are: the flatness and roughness of the end surface does not meet the requirements, or the surface is scratched; there is particulate matter between the end surfaces, causing two The end face cannot be operated in the same way; the installation is not in place and the way is incorrect. ②The leakage of the sealing ring of the compensation ring is mainly due to the deformation of the gland and uneven pre-tightening force; incorrect installation; the quality of the sealing ring does not meet the standard; the selection of the sealing ring is incorrect. The corrosion of the sealing element by the liquid medium, stress concentration, soft and hard material coordination, erosion, auxiliary sealing O-ring, V-ring, concave ring and liquid medium incompatibility, deformation, etc.
https://www.edwin-pump.com/product/
The damage form must be analyzed comprehensively to find the root cause to ensure the long-term operation of the mechanical seal.2020-02-28 Centrifugal pump shutdown is mainly caused by the failure of the mechanical seal. ②
The coaxiality of the transmission parts of the pump is poor. For example, the high-speed pump speed is 20445r/min, the center diameter of the sealing surface is 7cm, and the linear speed of the pump is as high as 75 m/s after operation. ③The liquid medium has poor lubricity, and the operating pressure is overloaded, and the tracking and rotation of the two sealing surfaces are not synchronized..
The main reasons are: the flatness and roughness of the end surface does not meet the requirements, or the surface is scratched; there is particulate matter between the end surfaces, causing two The end face cannot be operated in the same way; the installation is not in place and the way is incorrect. ②The leakage of the sealing ring of the compensation ring is mainly due to the deformation of the gland and uneven pre-tightening force; incorrect installation; the quality of the sealing ring does not meet the standard; the selection of the sealing ring is incorrect. The corrosion of the sealing element by the liquid medium, stress concentration, soft and hard material coordination, erosion, auxiliary sealing O-ring, V-ring, concave ring and liquid medium incompatibility, deformation, etc.
https://www.edwin-pump.com/product/
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