Heat supply coal consumption online determination method suitable for high-back-pressure cascade heat supply unit

Abstract

The invention discloses a heat supply coal consumption online determination method suitable for a high-back-pressure cascade heat supply unit; a univariate analysis method of fixed intermediate discharge steam extraction flow or operation back pressure is adopted to obtain a heat supply coal consumption result of the high-back-pressure cascade heat supply unit through on-site adjustment of unit operation parameters. According to the determination method provided by the invention, on-site determination working conditions are divided according to operation ranges of operation back pressure, electric power and heat supply return water temperature of a specific unit in a high-back-pressure cascade heat supply mode, so that a heat supply coal consumption database of the high-back-pressure cascade heat supply unit under different electric power, heat supply return water temperature and operation back pressure is obtained; production personnel of a power supply plant adjust the operation back pressure and the intermediate exhaust steam extraction flow according to the external heat supply network circulating water flow and the heat supply return water temperature change, and the minimum heat supply coal consumption is achieved under the condition that the heat supply quality is guaranteed.

Description

technical field [0001] The invention relates to an on-line measurement method for heating coal consumption suitable for high back pressure cascade heating units. Background technique [0002] At present, the energy structure has problems such as severe energy security situation, high pressure on carbon emission reduction, unreasonable energy consumption structure, prominent ecological and environmental problems, and low efficiency of comprehensive energy utilization. [0003] Cleanliness is one of the important directions of energy transformation. Coal power must actively "change its role", from the traditional main power source that provides electricity and electricity to the basic power source that provides reliable power and peak-shaving and frequency-regulating capabilities, and actively participates in peak-shaving , frequency modulation, voltage regulation, backup and other auxiliary services, and give full play to the functions of the "four platforms" in the process o...

AI Technical Summary

Problems solved by technology

[0021] In summary, the research on the calculation method of the heating coal consumption of the high back pressure cascade heating unit and the lack of simple and efficient measurement methods lead to the evaluation of the transformation benefit, and the The lack of reliable basis for heat price negotiation and on-site refined management and control of heat users seriously affects the objective decision-making and evaluation of the project, and leads to a passive position in the expansion of the heating market and heat price negotiation, and the heating profit cannot be reasonably guaranteed

Images