Pre-warning optimization control method for metal wall temperature of panel superheater in supercritical coal-fired unit
A technology for panel superheaters and coal-fired units, applied in control systems, lighting and heating equipment, steam generation, etc., can solve problems such as the inability to effectively control the temperature of metal walls, the control effect depending on the operator, and over-temperature pipe burst accidents, etc. , to achieve the effect of simple on-site debugging process, improving safety and economy, and reducing labor intensity
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[0022] The present invention is an early warning optimization control method for the metal wall temperature of the panel superheater of a supercritical coal-fired unit, such as figure 2 shown, including the following steps:
[0023] Step 1: Add the metal wall temperature control circuit interface of the panel superheater in the logic configuration fuel, feed water and both sides panel overheating and desuperheating water control circuits of the original coordinated control system;
[0024] Step 2: Carry out the logic configuration of the metal wall temperature control loop of the panel superheater, and introduce its output into the interface of the metal wall temperature control circuit of the panel superheater as a feedforward for the control of fuel, feed water, and overheating and desuperheating water on both sides Signal;
[0025] Step 3: The control system is put into actual operation. According to the real-time operation curve, the relevant parameters of the metal wall...
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