New Structure of Mechanical Seal for Diesel Locomotive Cooling Water Pump

Abstract

The invention discloses a novel structure of a mechanical seal of a cooling water pump of an internal combustion locomotive. A straight port table on the inner side of an impeller is fixedly connectedto the large end of a tower spring, the small end of the tower spring is fixedly connected to one side of a convex pushing rack, two bumps are arranged in the radial direction of the outer diameter of the other side of the convex pushing rack, the two bumps are locked in straight slots of the outer diameter of a movable seal ring, a concave shaft seal is mounted between the convex pushing rack and the movable seal ring, the concave shaft seal and the movable seal ring are sealed, a running face of the movable seal ring and the bottom surface of a fixed seal ring are sealed, the bottom surfaceof the fixed seal ring and a pump body are sealed, the movable seal ring and a shaft are sealed through a line seal ring, and the concave shaft seal and the shaft are sealed by a face. The novel structure is simple, good in processing economical benefit and high in sealing property, and can be used for a long time in high-temperature, high pressure and acidic and alkaline water quality environments, so that the water leakage frequency of a water pump applied to a ship or a highland internal combustion locomotive is reduced greatly, and the service life and the maintenance period of the engineof the highland internal combustion locomotive are prolonged.

Description

technical field [0001] The invention relates to the technical field of mechanical seals, in particular to a novel structure of mechanical seals for cooling water pumps of diesel locomotives. Background technique [0002] Whether it is a ship traveling on the vast sea or a diesel locomotive running on the vast Gobi, their power source is the engine. When the engine burns fuel, the temperature of the body continues to rise, especially when the ship is running against the wind and waves, and the engine needs to rotate at a high speed when the diesel locomotive climbs a slope, generating higher heat. If the temperature of the engine is lowered or maintained at a constant temperature, the heat can only be delivered by air cooling and water cooling. Air cooling is to dissipate heat through exhaust air, and water cooling is to achieve heat dissipation through water pump cold and hot circulation. If the water pump is to work in a continuous cycle, the mechanical performance of the...

AI Technical Summary

Problems solved by technology

Over the years, people in the industry at home and abroad have continuously researched and explored circulating water pumps, basically forming a complete structural system, but they have not been able to effectively solve the problem of water pump leakage, especially for high-power diesel locomotives. , the locomotive outage occurs

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