Water level control method of water tank

A water level control and water tank technology, applied in liquid level control, non-electric variable control, control/regulation systems, etc., can solve problems such as poor control effect and large water level fluctuation, and achieve fast response speed, simple equipment and good control effect. Effect

Inactive Publication Date: 2005-03-16
攀枝花新钢钒股份有限公司热轧板厂
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AI Technical Summary

Problems solved by technology

[0003] In order to overcome the disadvantages of the existing water tank water level control methods, such as poor control effect and untimely replenishment of water resulting in large fluctuations in water level, the technical problem to be solved by the present invention is to provide a water tank water level control method with fast response speed and timely replenishment of water

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  • Water level control method of water tank
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Embodiment

[0012] Example: such as figure 1 , figure 2 Shown, the water tank water level control method of the present invention, the structural shape of its high-level water tank, the configuration of control device 8 etc. are the same as traditional ones. The water level gauge 5 only takes the function of displaying the water level, and the action of replenishing water does not depend on the detection results. Therefore, the requirements for the accuracy, sensitivity, stability and other characteristic values ​​of the water level gauge 5 are lower than those of the traditional method. The water tank 3 is divided into two parts by the grille 4, and the left side is the water storage tank, which is equipped with 10 large caliber water supply pipes 2 with the same water inlet valve 7 and 90 small caliber water outlet pipes with the same water outlet valve 6. Water pipe 1, water inlet valve 7 and water outlet valve 6 are electromagnetic control valves. The total height of water tank 3 i...

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Abstract

The invention relates to an elevated tank water level control method applied to the feed water system of the hot-rolled strip steel coiling temperature control system. The method controls the feedwater flow of the feedwater tube to make the feedwater flow equal to or greater than the outflow according to the measured outflow of the outflow tube. The configuration requirement of the mechanical equipment and the control device of this control method is the same as that of the conventional method. The water level gauge only has the function of displaying the water level. With the same equipment, the water level can be controlled within 0.30~1.52m through the conventional control method, whereas it can be controlled within 1.20~1.51m through the directly flow controlling and the indirectly water level controlling method to feed water immediately. In addition, the invention is of high responding speed, perfect controlling effect, and the water level of the water tank fluctuates slightly.

Description

technical field [0001] The invention relates to a method for controlling the water level of a water tank, in particular to a method for controlling the water level of a high-level water tank in a water supply system in a coiling temperature control system for hot-rolled strip steel. Background technique [0002] The coiling temperature control system is one of the most critical automatic control systems in domestic and foreign hot-rolled strip mills. At present, modern hot-rolled strip mills generally use high-level water tanks as the water supply system for the coiling temperature control system. The purpose of using the high-level water tank for water supply is to stabilize the flow and pressure, and the means to ensure the constant flow and pressure is to maintain the basic stability of the water level in the high-level water tank. There are generally multiple water supply pipes and multiple water outlet pipes on the high-level water tank. In order to achieve the purpose ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05D9/00
Inventor 张中平佘广夫焦景民
Owner 攀枝花新钢钒股份有限公司热轧板厂
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