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Apparatus for treating exhaust gas of thermal plant

A waste gas treatment device, technology of thermal power plants, applied in the direction of waste gas exhaust device, gas treatment, injection device, etc., can solve the problems of changes, insufficient development of treatment technology, unsatisfactory treatment of waste gas, etc., and achieve excellent treatment effect Effect

Active Publication Date: 2020-12-01
韩国伊欧科环境科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Therefore, various types of treatment equipment are applied to thermal power plants (for example, Korean Registered Patent Publication 10-1563079, etc.), however, exhaust gas cannot be satisfactorily treated with existing treatment equipment
In particular, the operating state of the turbines in a thermal power plant will change at any time, so the conditions such as the flow rate, speed, and temperature of the exhaust gas will also change accordingly, especially when the conditions change rapidly when starting up, technical countermeasures are required for this, but Satisfactory processing techniques have been insufficiently developed to date

Method used

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  • Apparatus for treating exhaust gas of thermal plant
  • Apparatus for treating exhaust gas of thermal plant
  • Apparatus for treating exhaust gas of thermal plant

Examples

Experimental program
Comparison scheme
Effect test

experiment example 1

[0111] Exhaust gas treatment experiment

[0112] by Figure 11 In the form shown, an exhaust gas treatment device was installed in a simplified model of a combined cycle power plant, and a liquid-phase reductant (ammonia) was injected at the same molar ratio as nitrogen oxides using a dispersion nozzle for exhaust gas treatment experiments. At this time, the catalyst of the catalyst module uses a zeolite-based selective catalytic reduction catalyst {a catalyst in which Fe-β zeolite (Zeolyst) is washed and coated on a honeycomb carrier}, and the catalyst of the first additional catalyst module uses V 2 o 5 The vanadium-based selective catalytic reduction catalyst is the main component, and the platinum catalyst belonging to the oxidation catalyst is used as the catalyst of the second additional catalyst module. In this case, the dispersing nozzle in the pipeline is located at a position corresponding to 3 / 8 of the above-mentioned linear distance c from the hub, and the end p...

experiment example 2

[0118] Confirmation that the distribution of the fluid for treating pollutants at the rear end of the pipeline changes depending on the position of the dispersion nozzle in the pipeline

[0119] In order to confirm that the mixing distribution of the pollutant treatment fluid changes according to the position of the dispersion nozzle in the pipeline, the following experiment was carried out. Such as Figure 1 to Figure 4 As shown, the ammonia water is dispersed into the pipeline through the dispersing nozzle, and the concentration distribution of ammonia is measured on the expanded side of the pipeline connected to the rear end of the pipeline. At this point, air is injected at the gas turbine location to simulate the flow conditions out of the gas turbine at start-up. Dispersing nozzles on the cross-section of the pipeline such as figure 2 setup shown, along the longitudinal direction of the pipe for the above Figure 4 The straight-line distance c, increase the distance f...

experiment example 3

[0124] It was confirmed that the distribution of the fluid for treating pollutants at the rear end of the pipe changes according to the change in the position of the tip of the dispersion nozzle.

[0125] In order to confirm that the distribution of the pollutant treatment fluid changes according to the change in the position of the tip of the dispersion nozzle, the following experiments were conducted. Specifically, in the conditions of the above experimental example 2, the position in the pipe of the dispersion nozzle is fixed at 3 / 8 of the distance c from the hub to the straight line, and the position of the end of the dispersion nozzle is changed by changing the position of the dispersion nozzle in a certain proportion with respect to the vertical line a conditions and experiment. Adjust the theoretical concentration of ammonia dispersed from the dispersing nozzle on the measuring part to 10±1ppm, and keep the rest of the experimental conditions consistent. Thus, the res...

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Abstract

The present invention relates to an exhaust gas processing apparatus. The present invention discloses an apparatus for treating exhaust gas of a thermal plant. The exhaust gas processing apparatus fora thermal power plant of the present invention includes: a diffusion module unit for controlling an exhaust gas flow between a duct disposed at the rear end of a gas turbine of the thermal power plant and the gas turbine to induce the exhaust gas flow toward the inner wall of the duct; a plurality of injection nozzles which are installed at a flow section of the exhaust gas guided from the diffusion module to the inner wall of the duct in the duct and protrude from the inner wall of the duct; a fluid supply pipe connected to the injection nozzles and extended to the outside of the duct; a fluid supply unit for supplying fluid for treating pollutants in a liquid state through the injection nozzles through the fluid supply pipe; and a catalyst module disposed at the rear end of the injection nozzles. According to the present invention, exhaust gas of the thermal power plant can be treated very effectively and efficiently.

Description

technical field [0001] The invention relates to an exhaust gas treatment device, more particularly to an exhaust gas treatment device for a thermal power plant. [0002] technical background [0003] Electricity is usually generated in large power generating facilities. In power plants, power generation is mainly performed by thermal power generation using fuel combustion, nuclear power generation using nuclear energy, and hydroelectric power generation using fluid drop, and other power generation facilities that use solar energy, tidal energy, wind energy, etc. Way. [0004] Among them, the thermal power generation method is a method of driving a turbine by burning fuel as a power generation method that has been actively used until now. In order to obtain electricity through thermal power generation, it is necessary to continuously consume fuel, which is burned in a gas turbine and generates a large amount of exhaust gas (exhaust gas). These exhaust gases contain pollutan...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/86
CPCB01D53/86B01D2258/018B01D2255/20738B01D2255/20761B01D2255/50B01D2251/2062B01D2255/20723B01D2255/904B01D53/8625B01D53/8631B01D53/9431F01D25/305F05D2270/08B01F23/2132B01F25/31423B01F25/3143F23J15/04F23J13/02B05B1/02F23J2219/10B01D2255/1021B01D2255/502F05D2220/32B01F25/3142
Inventor 赵汉才李承宰
Owner 韩国伊欧科环境科技有限公司