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Water-penetrating cooling system

A technology of water-penetrating cooling and water-penetrating cooler is applied in workpiece cooling device, workpiece surface treatment equipment, metal rolling, etc. It can solve the problems of affecting the cooling effect of water-penetrating cooling, hindering heat transfer, etc. The effect of strengthening effective contact and improving cooling efficiency

Inactive Publication Date: 2016-04-06
XINXING DUCTILE IRON PIPES CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, in actual operation, the cold water will vaporize rapidly after contacting the bar, thus forming a gas layer on the surface of the bar, hindering heat transfer, and this effect will seriously affect the cooling effect of water-through cooling

Method used

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Embodiment 1

[0020] Such as figure 1 and 2 As shown, a water-through cooling system includes a guide device 2, a water-through cooler 3, a conduit 4, a water eliminator 5, and a water blocker 6. The water-through cooler 3 has a water inlet and a nozzle, and the jet flow of the nozzle The included angle between the direction and the horizontal line is 20±1 degrees. The water eliminator 5 has a water outlet, and a return pipe 8 is provided between the water outlet and the water inlet. The conduit 4 has 6 contraction sections, and the contraction sections at both ends are supporting contraction sections. 41. The contraction section in the middle is a spiral contraction section 42, the inner diameter of the support contraction section 41 is smaller than the inner diameter of the spiral contraction section 42, and the inner wall of the spiral contraction section 42 has a left-handed line for forcing the water flow to rotate.

[0021] In addition, the helix of the helical constriction section 4...

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Abstract

The invention discloses a water-penetrating cooling system, and belongs to the technical field of cooling equipment for metal rolling. The water-penetrating cooling system comprises a position guide device, a water-penetrating cooling device, a guide pipe, a water collection device and a water stop device; the water-penetrating cooling device is provided with a water inlet and a nozzle; the water collection device is provided with a water outlet; the guide pipe is provided with three or more contraction sections, two or more of the contraction sections are supporting contraction sections, one or more of the contraction sections are spiral contraction sections, the inner diameter of the supporting contraction sections is smaller than that of the spiral contraction sections, and spiral lines used for forcing water flow to rotate are arranged on the inner walls of the spiral contraction sections. According to the invention, the spiral lines are arranged on the spiral contraction sections and force the water flow to rotate, the turbulence state of the water flow is reinforced, and therefore the turbulent flow can be more disorderly, gas layers on the surfaces of bars can be effectively damaged under the dual effect of rotation and the turbulent flow, effective contact between cool water and the bars can be improved, and the cooling efficiency of water-penetrating cooling can be improved.

Description

technical field [0001] The invention relates to the technical field of cooling equipment for metal rolling, in particular to a water-through cooling system. Background technique [0002] Controlled cooling is to improve the structure and performance of steel by controlling the cooling rate of steel. Due to the effect of hot rolling deformation, the transformation temperature from deformed austenite to ferrite is increased, and the ferrite grains after phase transformation are easy to grow, resulting in a decrease in mechanical properties. In order to refine the ferrite grains, reduce the interlamellar spacing of pearlite, prevent the precipitation of carbides at high temperature, and improve the precipitation strengthening effect, the process of artificially controlling the cooling process is controlled cooling. Controlled rolling and controlled cooling can effectively combine the deformation strengthening and phase transformation strengthening of the steel. The addition of...

Claims

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Application Information

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IPC IPC(8): B21B45/02
CPCB21B45/023Y02P70/10
Inventor 马海杰刘云龙李维刘钧保崔新龙
Owner XINXING DUCTILE IRON PIPES CO LTD
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