Oil-mist-proof fuel tank cap
A fuel tank cap, oil-proof technology, applied in the direction of reducing greenhouse gases, hydropower, climate sustainability, etc., can solve the problems of production cycle suspension, waste of human and material resources, etc., to maintain air pressure balance, prevent oil rejection, solve Effects of Oil Mist Leakage Problems
Active Publication Date: 2014-07-02
DONGFANG ELECTRIC MACHINERY
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Problems solved by technology
The air filter needs to be cleaned frequently, resulting in a pause in the production cycle and a large waste of manpower and material resources
Method used
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[0022] The present invention provides an oil tank cover for preventing oil mist. The oil tank cover 4 is annular and arranged on the top of the guide bearing oil tank 2, and the inner edge of the oil tank cover 4 is installed close to the main shaft 7 with a certain gap. The inner edge of the fuel tank cover 4 is provided with a circle of condensation oil return device, the condensation oil return device is a shell with a three-sided structure, including a top plate, a bottom plate and a side plate, and the shell is fixedly connected to the cover body of the fuel tank cover 4. One-piece molding, or connecting with each other by connectors, etc. In this specific embodiment, in order to ensure the tightness of the condensing oil return device, the bottom plate 14 and the side plate are integrated with the cover body of the fuel tank cover 4, adopting integral welding forming technology, and the side plate is the outer edge of the condensing oil return device .
[0023] In this ...
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The invention provides an oil-mist-proof fuel tank cap. The fuel tank cap is in a circular ring shape and is arranged on the top of a fuel tank of a guide bearing, wherein the inner edge of the fuel tank cap is close to a main shaft and is provided with a condensed oil return device; the condensed oil return device is a shell of a three-surface structure and comprises a top plate, a bottom plate and a side plate, the joint clearance of the top plate of the shell and the main shaft is provided with a sealing device, and the bottom plate of the shell is an oil return pore plate; a circular condensation cavity is formed between the shell of the three-surface structure and the main shaft; and the condensation cavity is internally and symmetrically provided with a plurality of condensation baffle plates along the radial and circumferential directions. By adopting the fuel tank cap provided by the invention, the oil mist leakage problem of the fuel tank of the guide bearing is solved thoroughly, and meanwhile no oil is thrown at the baffle plate in the fuel tank without increasing other devices; and in addition, the oil-mist-proof fuel tank cap is of a self-cleaning and zero-maintenance structure, thus reducing the cleaning and maintaining work load of a power station.
Description
technical field [0001] The invention relates to the industry of power generation equipment, in particular to an oil tank cover for preventing oil mist used on hydroelectric generator sets. Background technique [0002] like figure 1 , figure 2 As shown, at present, the oil tank 2 of the guide bearing of the hydroelectric generator set is arranged at the connecting part of the main shaft 7 and the bearing bush 3, and the bearing bush 3 is pressed against the main shaft 7 by the horizontally arranged bearing bracket 1, and the oil tank 2 includes the bearing bracket 1, the bearing bush 3 and these parts of main shaft 7, oil tank 2 is filled with lubricating oil inside, and its oil level M is above bearing bracket 1. When the guide bearing is in operation, a certain amount of heat will be generated due to the extrusion and relative movement of the main shaft 7 to the contact surface of the bearing bush 3, which will cause the lubricating oil to vaporize and generate oil mist...
Claims
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IPC IPC(8): F03B11/06F03B11/04
CPCY02E10/226Y02E10/20
Inventor 郭靖宋敏
Owner DONGFANG ELECTRIC MACHINERY