Comprehensive control device with thermoelectric balance capability

Abstract

The invention relates to a comprehensive control device with thermoelectric balance capability. The comprehensive control device is technically characterized by comprising a main control computer, a data acquisition and output unit, an on-site water supply temperature acquisition unit, an on-site active power acquisition unit, an on-site load acquisition unit, an on-site heat supply temperature acquisition unit, a low-pressure valve CV, a heat supply valve EV and a main steam valve GV. The data acquisition and output unit respectively acquires on-site water supply temperature, on-site active power, an on-site load instruction and an on-site heat supply temperature instruction and transmits the on-site water supply temperature, the on-site active power, the on-site load instruction and the on-site heat supply temperature instruction to the main control computer. The main control computer generates a control command according to acquired on-site data, and the data acquisition and output unit sends the control command to the main steam valve GV, the low-pressure valve CV and the heat supply valve EV to control the work thereof. According to the device, the heating water supply temperature is kept at a certain numerical value by adjusting the heat supply steam flow, it is ensured that the active power of a generator set is kept stable by adjusting the opening degree of the low-pressure valve, and the unit operation efficiency and the hot spot balance capacity are improved.

Description

technical field [0001] The invention belongs to the technical field of thermal power generation, and relates to a combined heat and power control device, in particular to a comprehensive control device with thermoelectric balance capability. Background technique [0002] Cogeneration of heat and power in large power stations will be a trend in thermal power generation in the future. The combined heat and power generation mode uses the steam after the steam turbine generator does work to supply heat to users, and simultaneously produces electric energy and heat energy. It can not only save a lot of energy, but also improve environmental conditions and improve residents' living standards. [0003] Compared with the condensing steam turbine, the combined heat and power mode improves the efficiency, but reduces the flexibility, because from the perspective of heating or power supply, it is an object that is difficult to control individually and must be treated as a joint conside...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the deficiencies of the prior art, provide a comprehensive control device with thermoelectric balance capability, and solve the problem of the contradiction between heat supply and power supply in the existing heat and power cogeneration mode

Images