A double-sided spraying device and method for high-speed rail prefabricated box girders

Abstract

The invention discloses a double-face spraying device for a high-speed rail precast box beam. The device comprises a water tank, a water pump, a spraying pipe and a walking mechanism and is characterized in that the water pump is connected with the water tank and the spraying pipe, the spraying pipe comprises a top face spraying set and a bottom face spraying set, the top face spraying set is in a T shape, the vertical pipe of the T shape penetrates through a gap between two adjacent beam side wings, a nozzle is arranged on the transverse pipe of the T shape, and the top face spraying set is used for humidifying and cooling the top face of the precast box beam; the bottom face spraying set is used for humidifying and cooling the bottom face of the precast box beam, and an alarm lamp is arranged on the walking mechanism. The double-face spraying device is simple in structure, reasonable in design, high in intelligent degree, convenient to use and operate, capable of saving labor force, high in spraying efficiency and good in maintenance effect.

Description

technical field [0001] The invention relates to a maintenance system, in particular to a maintenance system for a high-speed rail prefabricated box girder. Background technique [0002] C50 high-performance concrete is used in the prefabrication of high-speed railway prefabricated box girders. After the concrete is poured, the reason why it can gradually solidify and harden is mainly due to the hydration of the concrete. Hydration requires proper temperature and humidity conditions, so in order to ensure that the concrete has suitable hardening conditions and its strength is continuously enhanced, the concrete must be cured by spraying. After the concrete is poured, if the climate is hot and the air is dry, the water in the concrete will evaporate too quickly if it is not sprayed and cured in time, resulting in dehydration, which will cause the cement particles that have formed a gel to be unable to fully hydrate and cannot be transformed into a stable cement. Crystallizes,...

AI Technical Summary

Problems solved by technology

Although the problem of mobile spraying has been solved, the water source is fixed, and the maintenance of long-distance multi-section box girders cannot be satisfied by relying on hoses to connect with the water source of maintenance water. The working distance is limited by the length of hoses; the interior of prefabricated box girders The temperature and humidity requirements for the maintenance of the space are different from those of the side wings. The side wings are thin and completely open and exposed, requiring multiple humidification and cooling, while the interior space hardly needs humidification, but this patent cannot treat it differently; it is impossible to humidify the upper surface of the box girder Cooling maintenance, and the upper surface is directly exposed to sunlight, especially maintenance is required; in addition, there are many problems such as cumbersome structure, high failure rate, and low degree of intelligence

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