A self-controlled heating system for thermal power generation
A technology of thermal power plants and high-pressure heaters, which is applied in the direction of machines/engines, steam engine devices, steam applications, etc., and can solve problems such as the inability to automatically compensate for low-pressure cylinder steam, and achieve the effect of reducing coal energy loss and improving stability
Inactive Publication Date: 2015-12-02
江苏新动力(沭阳)热电有限公司
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Problems solved by technology
[0003] The purpose of the present invention is to provide a self-controlled heat supply system for thermal power generation to solve the problem that the thermal power generation heating system in the prior art cannot automatically compensate the low-pressure cylinder steam
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[0012] Such as figure 1 , figure 2 shown. A self-controlled heat supply system for thermal power generation, including a condenser 1, a low-pressure heater 2, a deaerator 3, a high-pressure heater 4, and a boiler 5 connected sequentially through pipelines, and the boilers 5 are respectively supplied with gas through different gas supply pipelines To the high and medium pressure cylinders 6 and 7 of the steam turbine in the thermal power plant, the air inlet on the low pressure heater 2 is connected to the pumping air port of the medium pressure cylinder 7 of the steam turbine in the thermal power plant through a pipeline, and the air intake on the high pressure heater 4 The port is connected to the high-pressure cylinder 6 pumping air port of the steam turbine of the thermal power plant through a pipeline, a temperature sensor 8 is arranged in the boiler 5, a speed sensor 9 is coaxially installed on the rotor of the steam turbine of the thermal power plant, and the air inlet...
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The invention discloses a self-control heating supply system of a thermal power plant. The self-control heating supply system comprises a condenser, a low-pressure heater, a deaerator, a high-pressure heater and a boiler which are sequentially communicated through pipes. A temperature sensor is arranged in the boiler, a rotation speed sensor is installed on a rotor of a steam turbine of the thermal power plant, and a magnetic valve is arranged on a pipe between an air inlet of the high-pressure heater and an air pumping port of a high pressure cylinder of the steam turbine of the thermal power plant. A pipe further bypasses between the air inlet of the high-pressure heater and the air pumping port of the high pressure cylinder of the steam turbine of the thermal power plant, a magnetic valve and an air pump are installed on the bypass pipe, a temperature sensor and the rotation speed sensor are connected to a central control central processing unit (CPU) through data acquisition units respectively, and the output end of the central control CPU is connected with the control ends of the magnetic valves respectively. The self-control heating supply system performs air supplement to a low pressure cylinder of the steam turbine according to rotation speed data of the rotor of the steam turbine and boiler temperature data, improves the stability of power generation work and can effectively reduce coal energy loss.
Description
technical field [0001] The invention relates to the field of heat supply systems for thermal power generation, in particular to an automatic control heating system for thermal power generation. Background technique [0002] Thermal power generation uses coal as a heat source, heats water in a boiler to generate steam, and uses the steam to make the high, medium, and low pressure cylinders of the steam turbine do work, thereby driving the generator to generate electricity. The thermal power generation heating system in the prior art consists of a condenser, a low-pressure heater, a deaerator, a high-pressure heater, and a boiler. After the steam in the low-pressure cylinder enters the condenser and condenses into water, it is heated by the low-pressure heater and deoxidized in turn. The high-pressure heater pumps steam from the high-pressure cylinder to heat, and the low-pressure heater pumps steam from the medium-pressure cylinder to heat. After the water is heated to steam ...
Claims
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IPC IPC(8): F01K17/02F01K11/02
Inventor 顾今
Owner 江苏新动力(沭阳)热电有限公司