Water supply device for medium plate cooling after rolling system

Abstract

The invention discloses a water supply device for a medium plate cooling after rolling system, which comprises a cooling manifold. The water supply device also comprises a high cistern, wherein the cooling manifold is connected with the high cistern; the highest liquid level and the lowest liquid level are prearranged in the high cistern, and have a difference value H; and the sectional area (unit: m2) H (unit: m) of the high cistern is 158-70. Through the high cistern with large sectional area, which is arranged in the water supply device and is connected with the cooling manifold, the cooling manifold can obtain stable water supply pressure, and can instantly supply plenty of water so as to ensure an excellent cooling effect.

Description

technical field [0001] The invention relates to a cooling system after medium and heavy plate rolling, in particular to a water supply device of the cooling system. Background technique [0002] Controlled cooling is an important means to improve product quality and develop high value-added products in plate mills. To control the cooling process after plate rolling, it is necessary not only to ensure the control accuracy of cooling speed and final cooling temperature, but also to ensure the uniformity of the overall temperature control of the steel plate, so a water supply system with relatively high precision is required for controlled cooling after plate rolling . Stable header water spray pressure and the provision of instantaneous large-capacity water supply can provide favorable guarantees for achieving a good and expected controlled cooling effect. In the existing water supply system, the cooling header is directly connected to the water source. If the external water...

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Problems solved by technology

In the existing water supply system, the cooling header is directly connected to the water source. If the external water source is unstable to the water supply pressure of the cooling header or cannot provide the instantaneous large-capacity water for the control cooling system, the water spray pressure of the control cooling header will be unstable. Stable or unable to provide the water required for operation normally, affecting the cooling effect of the steel plate, causing uneven cooling of the steel plate, high final cooling temperature, producing unqualified intermediate products, affecting product quality and output, and failing to exert due economic benefit

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