Boiler environment-friendly purification device for power plant

Abstract

The invention discloses a boiler environment-friendly purification device for a power plant. The device comprises a cylinder body, a feeding mechanism, a water supply assembly and a programmable logiccontroller (PLC); the cylinder body communicates with the feeding mechanism through the water supply assembly; a spraying main pipe is fixedly installed at a position, close to the axis, in the cylinder body; a flue gas inlet is fixedly connected to one end of the cylinder body; a detection pipe is fixedly connected to one end of the flue gas inlet; and a sulfur dioxide sensor is fixedly installed on the surface of the inner wall of the detection pipe. Through arrangement of the feeding mechanism, the content of lime in a desulfurization liquid can be adjusted in time according to the contentof sulfur dioxide in flue gas, so that waste of resources caused by excessive lime content is avoided, and meanwhile, influence on the purification effect due to too low lime content can also be avoided. The purification device has very good environmental friendliness, and the purification effect of the device can be improved. Through an arranged spraying assembly, spraying uniformity of the desulfurization liquid can be ensured, so that the desulfurization liquid can be in comprehensive contact with the flue gas.

Description

technical field [0001] The invention relates to the technical field of power plants, in particular to an environmental protection purification device for boilers in power plants. Background technique [0002] A power plant, also known as a power station, is a factory that converts various primary energy sources stored in nature into electrical energy (secondary energy). At the end of the 19th century, as the demand for electricity increased, people began to propose the idea of ​​establishing an electricity production center. With the development of motor manufacturing technology, the expansion of the application range of electric energy, and the rapid growth of the demand for electricity in production, power plants have emerged as the times require. Present power plants have a variety of ways to generate electricity: those that rely on thermal power are called thermal power plants, those that rely on hydroelectric power are called hydropower plants, and some power plants th...

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Problems solved by technology

[0004] 1. The traditional boiler purification device cannot adjust the proportion of desulfurization liquid in time according to the content of sulfur dioxide in the flue gas. Generally, the prepared desulfurization liquid is directly input into the purification device for use in advance. However, due to the different components of the fuel, the discharged flue gas The sulfur dioxide content is also different. If the same proportion of desulfurization liquid is used alone, the desulfurization will not be complete, and the desulfurization liquid will also be wasted.

[0005] 2. The traditional boiler purification device only has a good removal effect on particles with larger particle sizes, and has a poor trapping effect on particles with small particle sizes

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