Oil inlet and return pipe maintenance tool and method for diesel engine body at nuclear power station

Abstract

The invention belongs to the technical field of diesel engine maintenance at nuclear power stations, and discloses an oil inlet and return pipe maintenance tool and method for a diesel engine body ata nuclear power station. The oil inlet and return pipe maintenance tool comprises a clamping device and a jacking device, wherein the clamping device comprises a clamping pipe, a sleeve, a clamping screw and a clamping piece; the jacking device comprises a nut, a bolt and a bottom support; the clamping pipe is fixedly connected with the sleeve; a through hole is formed in the clamping pipe and inthreaded connection with the clamping screw; the end, close to the clamping pipe, of the clamping screw is fixedly connected with the clamping piece; the bottom of the bolt is fixedly connected with the bottom support; the nut matched with the bolt sleeves the bolt; and the bolt is inserted into the sleeve and connected with the sleeve in a matching manner. The oil inlet and return pipe maintenance tool is simple in structure and small in size, can adapt to onsite narrow maintenance space, and has rapid positioning and jacking functions; the uniform stress of an entire oil inlet and return pipe assembly can be guaranteed; the deformation of an oil inlet and return pipe as well as the sealing surface and thread damage can be avoided; the labor cost can be effectively reduced; the risk caused by human errors can be reduced; and the maintenance operation on the oil inlet and return pipe can be safely and efficiently performed.

Description

technical field [0001] The invention belongs to the technical field of maintenance of diesel engines in nuclear power plants, and in particular relates to a maintenance tool and method for oil inlet and return pipes of diesel engine bodies in nuclear power plants. Background technique [0002] The emergency diesel generator of nuclear power plant is directly related to nuclear safety as the emergency safety power source of the power plant. It is an independent emergency power source in the nuclear power plant. Provide electric energy to ensure the safe shutdown of the unit and prevent damage to key equipment, and ensure the safety of personnel and the environment. Therefore, diesel engines play a very important role in protecting fuel elements from damage and ensuring nuclear safety. [0003] On both sides of the diesel engine body, there are inlet and outlet oil pipe assemblies, which are connected with the diesel oil inlet and outlet ports of each cylinder. During the ope...

AI Technical Summary

Problems solved by technology

As a result, a large amount of manpower is invested in each inspection and repair of the inlet and outlet pipelines, which inevitably leads to risks caused by human errors

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