A bidirectional cross-jet cooling device and cooling method thereof

Abstract

The invention discloses a two-way cross jet flow cooling device and a cooling method thereof, and belongs to the field of heat treatment in steel rolling metallurgical processes. The two-way cross jetflow cooling device is used for the cooling of the plate among rolling passes or after the end of the rolling and comprises two rows of parallel jet flow tubes, a plurality of jet flow pipe bodies are arrayed on each row of jet flow pipes at equal intervals, the gas between the two adjacent jet flow pipe bodies in one row of jet flow pipes right faces one jet flow pipe body on the other row of jet flow pipes, all jet flow nozzles of the jet flow pipe bodies obliquely spray cooling water to the plate, the impact points of the cooling water on the plate are converged in one straight line, and the straight line is between the two rows of jet flow pipes, and the two rows of the jet flow pipes stretch across the width direction of the plate. The two-way cross jet flow cooling device can achieve uniform cooling of the width direction of the plate at the same time, the jet flow pipes can change the jet flow angle and the water flow shape, the heat exchange ability of the surface of the cooled plate is improved, the installation is convenient, the stability is high, and the number of arrangement layers of cooling water pipes can be adjusted so as to achieve the cooling of different cooling needs.

Description

technical field [0001] The invention belongs to the field of heat treatment in steel rolling metallurgical technology, and relates to a two-way cross jet cooling device and a cooling method thereof. Background technique [0002] As a widely used material type, sheet metal is used in various industries in the field of engineering. The selection of cooling method after hot rolling and the control of cooling process parameters are the key steps to ensure the performance of plate products. When the traditional jet cooling process is used to cool the plate, the tube bundle water spray cooling method is often used. Due to the large width of the plate, the arrangement of the tube bundle is affected by the shape and structure of the tube section. Affected by the shape of the water stream, the circular area directly below the tube where the water stream is directly injected can dissipate heat and cool quickly, while the gap between the tubes can only dissipate heat naturally, with u...

AI Technical Summary

Problems solved by technology

[0004] In order to solve the above technical problems, a two-way cross-jet cooling device and cooling method thereof are provided, which aim to pressurize the cooling water to pass through the cross-jet tube in a turbulent flow type, forming a high-pressure flat turbulent liquid beam obliquely Impact the cooled object, improve the heat treatment quality of the plate, reduce the phenomenon of uneven cooling, avoid the appearance of surface warping, and ensure the surface quality of the plate

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