Grinding device and repairing method for repairing conical sealing face connector

Abstract

The invention discloses a grinding device for repairing a conical sealing face connector. The grinding device comprises a casing pipe and a positioning pin. One end along the casing pipe is in an inner cone shape, and the inner side of the other end of the casing pipe is in a straight barrel shape. The big end of the inner cone is located on the end face of the casing pipe. The small end of the inner cone is located at the middle portion of the casing pipe. The end, which is the inner cone, of the casing pipe is provided with an opening groove in the axial direction, and the opening groove penetrates the casing pipe in the radial direction. The positioning pin comprises a positioning end and a drive end, the positioning end of the positioning pin penetrates the casing pipe and is fixedly connected with the casing pipe, and a drive device for driving the positioning pin is further included. A repairing method for the conical sealing face connector is further provided. The grinding device and branch pipe connection nozzle center holes are positioned, and it is guaranteed that during grinding, a tool and a sealing face are coaxial. The grinding device can be provided with abrasive cloth, high-speed rotation grinding of the drive device replaces operator manual filing repairing, the sealing face repairing quality is improved, and the labor intensity is relieved. The grinding deviceis simple in structure and low in production cost, many branch pipe connection nozzles are arranged on a fuel main pipe, the grinding device is used, and accordingly the repairing time is greatly shortened.

Description

technical field [0001] The invention belongs to the field of repairing gas turbine main pipe parts, and in particular relates to a grinding device for repairing conical sealing surface joints and a repairing method thereof. Background technique [0002] Gas turbine is a strategic industry involving the power of the national navy, and it is the highest-end product in the field of energy and power equipment. The fuel manifold, as a key component of the gas turbine, needs to operate under harsh conditions such as high humidity, high temperature, high pressure, high speed and high load. Long-term repeated work, the reliability of the sealing position of the main pipe affects the service life of the fuel main pipe. The simple and practical sealing surface grinding device can greatly improve the quality of repairing the sealing surface of the nozzle of the fuel main pipe, and increase the first pass rate of the main pipe sealing test. In addition, it can shorten the repair cycle a...

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Problems solved by technology

[0003] In the current gas turbine repair field, when repairing the sealing surface of the fuel main pipe branch joint, it is impossible to use conventional grinding devices or equipment to assist the repair, so the operator can only manually file and polish the repair, and the operator's skill level is uneven or repair The applicability of the tool is poor, so the sealing surface of the repaired joint is often found to be unqualified in the coloring inspection or sealing test, and needs to be repaired again. If it cannot be repaired, the joint needs to be replaced. Therefore, it is very necessary to design an auxiliary grinding device for the sealing surface of the branch joint

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