Circle-contacted coal fired boiler tube wall temperature global optimizing and debugging method
A technology for tube wall temperature and coal-fired boilers, which is applied in the control of combustion, combustion equipment, control systems, etc., can solve the problems of insufficient reheated steam temperature, overtemperature of the reheated steam tube wall, and high CO content in flue gas
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[0028] Below in conjunction with accompanying drawing and embodiment example, the present invention will be further described:
[0029] In this embodiment, the opposing coal-fired boiler unit is equipped with a safety instrumented system, hereinafter referred to as the SIS system, see the attached figure 1 As shown in the flow chart, the overall optimization and debugging method for the tube wall temperature of a tangential coal-fired boiler specifically includes the following steps:
[0030] S1. Under the high, medium and low load conditions of the unit, the differential test of the vertical swing angle position of the overburning air is carried out, and the best vertical swing angle position of the overburning air under different loads of the unit is obtained;
[0031] S2. On the basis of step S1, the operating oxygen content test is carried out for commonly used coal types, and the pipe wall temperature distribution diagrams of the heating surfaces of the water wall, panel ...
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