Mass concrete circulating cooling system

Abstract

The invention belongs to the technical field of concrete pouring, and particularly relates to a mass concrete circulating cooling system. According to the technical scheme, the mass concrete circulating cooling system comprises a water storing tank and a plurality of cooling water screens. The water storing tank communicates with a water inlet end of a water inlet pump by a pipeline. The water outlet end of the water inlet pump communicates with a water supplying pipeline. Water inlets of the cooling water screens communicate with the water supplying pipeline. Water outlets of the cooling water screens communicate with a backwater pipeline. The backwater pipeline is provided with a flow limiting valve. The backwater pipeline communicates with the water inlet end of a backwater pump. The water outlet end of the backwater pump communicates with the water storing tank by a pipeline. Cooling water in the water storing tank is conveyed to the water inlet pump to the cooling water screens. The cooling water screens are positioned in raft foundation concrete, can stably cool the poured concrete, and can conduct effective heat dissipation to concrete in the hydration process. The cooling water absorbs mass heat in the cooling water screens and is conveyed back to the water storing tank by the backwater pump, and therefore circulating application is achieved.

Description

technical field [0001] The invention belongs to the technical field of concrete pouring, and in particular relates to a circulation cooling system applied to large-volume concrete pouring. Background technique [0002] In the construction industry, large-volume concrete structures are often encountered, such as dam bodies, power station water intake towers, pier foundations, building foundations, etc. During the construction period of large-volume concrete, concrete hydration will generate a lot of heat. If it cannot be effectively Uniform heat dissipation will form a large temperature stress, resulting in concrete cracking and quality accidents. In order to prevent cracks caused by the large temperature difference between the inside and outside of the concrete, cooling water pipes are embedded in the concrete, and temperature control measures such as cooling and watering the concrete are taken to ensure the quality of the concrete. The current arrangement of cold water pip...

AI Technical Summary

Problems solved by technology

The current arrangement of cold water pipes is mostly uniform, without considering the temperature distribution inside the actual concrete block. Although it can control the temperature drop inside the concrete and reduce the temperature difference between the inside and outside of the concrete, due to the difference in heat dissipation effect, the temperature in the center of the concrete is high, and the boundary The temperature is low, and the arrangement of equal-spaced water pipes cannot effectively reduce the internal temperature difference of the concrete. This internal temperature difference will still generate unfavorable temperature stress and have great destructive power to the concrete.

Images