Intelligent energy-saving curing system for concrete prefabricated product

Abstract

The invention provides an intelligent energy-saving curing system for a concrete prefabricated product. The system comprises a still kettle and a steam generation device and further comprises a plurality of water storage tanks, wherein the water storage tanks are arranged in the still kettle and can collect high-temperature condensate water generated in the still kettle, a tail end curing unit isincluded and comprises a heat preservation chamber and a heat exchange control part, the heat preservation chamber is arranged at a kettle outlet of the still kettle, high-temperature residual steam in the concrete prefabricated product and the still kettle can enter the heat preservation chamber through the kettle outlet, the interior of the heat preservation chamber exchanges heat with the outside, then an internal temperature of the heat preservation chamber is reduced, and the heat exchange control part is connected with the heat preservation chamber and used for controlling a temperaturereduction rate of the interior of the heat preservation chamber. On one hand, a space utilization rate of the interior of the still kettle is increased, steam waste is reduced, and meanwhile shrinkagecracking of the concrete prefabricated product due to too large temperature difference is avoided; and on the other hand, the heat utilization efficiency is improved, energy is saved, and the production and utilization efficiency of the still kettle is improved.

Description

technical field [0001] The invention belongs to the field of energy conservation and environmental protection, and in particular relates to an intelligent energy conservation maintenance system for concrete prefabricated products. Background technique [0002] Autoclave is a large pressure vessel with large volume and heavy weight. It has a wide range of uses. It is widely used in autoclaved curing of concrete pre-products such as aerated concrete blocks and concrete pipe piles. It is a very important industry. equipment. [0003] However, during the use of the existing autoclave, concrete pre-products such as aerated bricks, wall panels, prefabricated piles, etc., are stacked on the trolley to enter the autoclave for curing, and the shape of the autoclave is mostly rectangular after stacking. There are many cavities left inside. On the one hand, it causes a waste of space in the kettle, and due to the existence of the cavity, the curing process of the concrete preform in ...

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Problems solved by technology

[0003] However, during the use of the existing autoclave, concrete pre-products such as aerated bricks, wall panels, prefabricated piles, etc., are stacked on the trolley to enter the autoclave for curing, and the shape of the autoclave is mostly rectangular after stacking. There is a lot of empty space inside

On the one hand, it causes a waste of space in the kettle, and due to the existence of the cavity, the curing process of the concrete preform in the kettle needs to consume more steam, and the steam dissipates heat quickly through the kettle body, and will generate and discharge more high temperature Steam and high-temperature condensed water cause waste of heat and water resources; on the other hand, after the completion of one maintenance, the steam and condensed water in the kettle have been discharged cleanly, and the heat loss is large, and the initial temperature in the kettle is relatively low. Concrete pre-products need to be heated from a low temperature when entering the autoclave, which consumes a lot of steam, and the curing time is correspondingly longer, which prolongs the turnaround time of the autoclave and seriously reduces the production and utilization efficiency of the autoclave

[0004] In addition, due to the large temperature difference between the inside and outside of the autoclave, if the temperature is not cooled for a period of time, the concrete pre-products are prone to cracking after leaving the autoclave.

In the prior art, in order to prevent cracking of concrete pre-products, some methods of prolonging the cooling time of concrete pre-products in the autoclave will further prolong the turnaround time of the autoclave and reduce the production efficiency of the autoclave; or, The method of manually covering the concrete pre-products with tarpaulin and other materials is used to achieve simple heat preservation. This method does not have a good heat preservation effect and increases the labor intensity of the producer.

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