Nuclear main pump mechanical seal key component size detection device

Abstract

The invention relates to a nuclear main pump mechanical seal key component size detection device. Three fine adjustment support frames (2) are arranged on a marble platform (3), a mechanical seal part (1) is arranged on the three fine adjustment support frames (2), and a high-precision induction measuring head (7) is positioned on the mechanical seal part (1) and is arranged on a spring lifting device (6), the spring lifting device (6) is fixed on a supporting cross beam (5), the supporting cross beam (5) is installed on a movable measuring supporting column (4), the movable measuring supporting column (4) is installed on the marble platform (3), and a high-precision displayer (8) is connected with the high-precision induction measuring head (7) through a data wire. Numerical values are transmitted to the high-precision displayer (8) through the data connecting line, detection personnel record the measurement value of each point, the geometric dimension of the water conservancy curved surface of the sealing surface of the mechanical sealing part is obtained, the measurement precision is high, and the device is suitable for measuring the form and location tolerance of the sealing surface of the mechanical sealing part after grinding and the conicity and waviness value of the static ring water conservancy curved surface.

Description

Technical field: [0001] The invention relates to a detection device for the size of a key component of a nuclear main pump mechanical seal. Background technique: [0002] The hydrodynamic mechanical seal is the key part of the reactor coolant pump of the pressurized water reactor nuclear power plant (referred to as the shaft seal pump). , The dimensional accuracy of the shape and position tolerance directly affects the controllable leakage of the shaft seal pump, which in turn affects the safe and reliable operation of the nuclear power plant reactor. The current conventional measurement method uses a three-coordinate measuring instrument and an articulated arm to measure the sealing surface of the above-mentioned seals. Measurement, the measurement accuracy cannot meet the dimensional accuracy of the sealing surface after grinding, so it is necessary to design a new measuring device to accurately measure the dimensional accuracy of the sealing surface after grinding, and pr...

AI Technical Summary

Problems solved by technology

[0002] The hydrodynamic mechanical seal is the key part of the reactor coolant pump of the pressurized water reactor nuclear power plant (referred to as the shaft seal pump). , The dimensional accuracy of the shape and position tolerance directly affects the controllable leakage of the shaft seal pump, which in turn affects the safe and reliable operation of the nuclear power plant reactor. The current conventional measurement method uses a three-coordinate measuring instrument and an articulated arm to measure the sealing surface of the above-mentioned seals. Measurement, the measurement accuracy cannot meet the dimensional accuracy of the sealing surface after grinding, so it is necessary to design a new measuring device to accurately measure the dimensional accuracy of the sealing surface after grinding, and provide accurate grinding amount for the sealing surface during the grinding process of the parts data support

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