Uninterrupted cooling water system and control method
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A technology of cooling water system and control loop, applied in the direction of heat treatment process control, manufacturing tools, heat treatment equipment, etc., can solve the problems of easy shutdown redundancy and high cost, and achieve increased redundancy, increased redundancy, and simple operation Effect
Inactive Publication Date: 2018-02-13
BEIJING SHOUGANG COLD ROLLED SHEET
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[0004] The embodiment of the present application provides an uninterrupted cooling water system and control method, which solves the technical problems of high cost, easy shutdown and low redundancy in the prior art of independently setting up the cooling water system
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Embodiment 1
[0040] In this embodiment, an uninterrupted cooling water system is provided for the annealing furnace unit of the double continuous galvanizing production line, such as figure 1 Described, described double continuous galvanizing production line comprises first production line 10 and second production line 20, and described system comprises:
[0041] The first water pump 1, the second water pump 2, the third water pump 3, the fourth water pump 4 and the fifth water pump 5;
[0042] The first water pump 1, the second water pump 2 and the third water pump 3 are powered by the normal circuit and the emergency circuit of the second production line 20; the first water pump 1, the second water pump 2 and the The third water pump 3 is controlled by the control loops of the first production line 10 and the second production line 20;
[0043] The fourth water pump 4 and the fifth water pump 5 are powered by the normal circuit and the emergency circuit of the first production line 10; ...
Embodiment 2
[0059] In this embodiment, an uninterrupted cooling water system control method is provided, which is used for the annealing furnace unit of the double continuous galvanizing production line, and the double continuous galvanizing production line includes a first production line and a second production line, and the The system includes:
[0060] a first water pump, a second water pump, a third water pump, a fourth water pump and a fifth water pump;
[0061] The first water pump, the second water pump and the third water pump are powered by the normal circuit and the accident circuit of the second production line; the first water pump, the second water pump and the third water pump are powered by control loop control of the first production line and the second production line;
[0062] The fourth water pump and the fifth water pump are powered by the normal circuit and the emergency circuit of the first production line; the fourth water pump and the fifth water pump are control...
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Abstract
The invention discloses an uninterrupted cooling water system and a control method for an annealing furnace unit of a double continuous galvanizing production line. The system includes: a first water pump, a second water pump, a third water pump, a fourth water pump and a fifth water pump; The first water pump, the second water pump and the third water pump are powered by the normal circuit and the accident circuit of the second production line; the first water pump, the second water pump and the third water pump are controlled by the control loops of the first production line and the second production line; The fourth water pump and the fifth water pump are powered by the normal circuit and the accident circuit of the first production line; the fourth water pump and the fifth water pump are controlled by the control loop of the first production line; where the first water pump and the second water pump are in the running state of The annealing furnace unit of the double continuous galvanizing production line is cooled. If the first water pump or the second water pump fails, the third water pump will be activated; if two or more of the first water pump, the second water pump and the third water pump fail, then Activate the fourth water pump and/or the fifth water pump.
Description
technical field [0001] The invention relates to the technical field of cold-rolled strip rolling control, in particular to an uninterrupted cooling water system and a control method. Background technique [0002] In the dual continuous hot-dip galvanizing production line, it is very important to ensure the normal cooling of the equipment in the furnace area during production. An uninterrupted cooling water system shared by the annealing furnace units of the dual continuous galvanizing production line is needed to solve the cooling water system pumping station. [0003] In actual operation, the cooling water system of the annealing furnace unit of the double continuous galvanizing production line is often independently designed, that is, a cooling system is independently designed for each production line unit. However, there are the following problems: ① independent pumping stations, heat exchange systems and pipelines need to be set up separately, and the investment cost is ...
Claims
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