Method for improving reheated steam temperature of thermal generator set

Abstract

The invention relates to a method for improving the reheated steam temperature of a thermal generator set, which includes the following steps: step 1, building up a remote management control system; step 2, setting the reheated steam temperature of the thermal generator set and the expected value of the operating parameters of the thermal generator set, which has effect to the reheated steam temperature parameter; setting the permitted error value of the reheated steam temperature index; step 3, comparing the effective value and the expected value of the reheated steam temperature, if the difference of the two values is bigger than the permitted error value of the reheated steam temperature index set in step 2, respectively adjusting the parameter of the thermal generator set until the effective value of the parameter reaches the expected value; and step 4, repeating step 3 until the difference between the effective value and the expected value of the reheated steam temperature is smaller than the permitted error value of the reheated steam temperature index set in step 2. The invention has the advantage that the invention provides a friendly platform for the workers to observe the other real-time operating state information which can have effect on the reheated steam temperature parameter.

Description

technical field [0001] The invention relates to the field of thermal power generation, in particular to a method for increasing the reheating steam temperature of a thermal power generating set. Background technique [0002] In the process of thermal power generation, if the reheated steam temperature of the thermal power generation unit is too low, the thermal efficiency of the unit will decrease. In theory, if the reheated steam temperature does not decrease by 1 degree Celsius, the efficiency of the steam turbine will be affected by about 0.013%, and the corresponding coal consumption will be about 0.11g / K Wh, and the low temperature of reheated steam will also increase the steam humidity of the blades of the next stage of the steam turbine, which not only reduces the efficiency of the steam turbine, but also causes the erosion of the blades of the next stage of the steam turbine to intensify. Cause water shock of steam turbine and steam pipeline. [0003] However, in t...

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Problems solved by technology

[0003] However, in the existing technology, the staff can only check the reasons that may affect the reheat steam temperature based on their own work experience, and then check the related reasons that may affect the reheat steam temperature one by one based on experience until they find the real influence. The cause of the reheat steam temperature and eliminate the cause, so as to increase the reheat steam temperature of the thermal power generation unit

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