Control method for permanent magnet speed regulation transformation coupling IFGD system of slurry circulating pump
A slurry circulating pump and permanent magnet speed regulation technology, which is applied to controllers with specific characteristics, electric controllers, etc., can solve problems such as waste of electric energy and excess power of motors
Inactive Publication Date: 2022-07-22
湛江电力有限公司 +1
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[0004] The main purpose of the present invention is to provide a control method for revamping the permanent magnet speed regulation of the slurry circulation pump coupled with the IFGD system, aiming to solve the waste of electric energy caused by the excess power of the motor when the desulfurization system of the existing thermal power plant operates under partial load technical issues
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[0031] It should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the present invention.
[0032] refer to figure 1 , figure 1 It is a schematic structural diagram of a control device of a hardware operating environment involved in an embodiment of the present invention.
[0033] like figure 1 As shown, the control device may include: a processor 1001 , such as a central processing unit (Central Processing Unit, CPU), a communication bus 1002 , a user interface 1003 , a network interface 1004 , and a memory 1005 . Among them, the communication bus 1002 is used to realize the connection and communication between these components. The user interface 1003 may include a display screen (Display), an input unit such as a keyboard (Keyboard), and the optional user interface 1003 may also include a standard wired interface and a wireless interface. Optionally, the network interface 1004 may include a stan...
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The invention discloses a control method for a slurry circulating pump permanent magnet speed regulation transformation coupling IFGD system. The control method comprises the following steps that the pH value in an absorption tower and the SO2 concentration at an outlet of the absorption tower are obtained; adjusting the output flow of the circulating slurry in the absorption tower according to the pH value in the absorption tower and the SO2 concentration at the outlet of the absorption tower; and the motor power of the circulating pump is adjusted through a permanent magnet speed adjusting device according to the output flow of the circulating slurry. According to the control method, the output flow of the circulating slurry in the absorption tower is adjusted according to the pH value in the absorption tower and the SO2 concentration at the outlet of the absorption tower, so that the output flow of the circulating slurry is matched with the purification flow required by the system, and the purification efficiency is effectively adjusted; and the motor power of the circulating pump is adjusted through the permanent magnet speed adjusting device according to the output flow of the slurry, so that the purposes of SO2 concentration closed-loop control and motor power supply energy consumption saving are achieved.
Description
technical field [0001] The invention relates to the technical field of desulfurization treatment, in particular to a control method for a slurry circulating pump with permanent magnet speed regulation retrofit coupled to an IFGD system. Background technique [0002] With the country's higher and higher requirements for environmental protection, the society has put forward higher requirements for the reliable operation of thermal power plant desulfurization. As an important part of the desulfurization system in thermal power plants, the desulfurization slurry circulating pump plays a vital role in the normal operation of the entire desulfurization system. At present, most of the flue gas desulfurization in my country is wet desulfurization. The core equipment of the desulfurization system is the desulfurization slurry circulation pump. The main task is to circulate the slurry in the absorption tower, and the absorbed limestone slurry is formed into an atomized shape through ...
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IPC IPC(8): G05B11/42
CPCG05B11/42
Inventor 陈世桐梁中荣吴国威符美逍朱晓君赴闻年刘科林揭育红陈晋
Owner 湛江电力有限公司