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Boiler start-up optimization method

An optimization method and boiler technology, applied in the direction of combustion method, indirect carbon dioxide emission reduction, lighting and heating equipment, etc., can solve the problems that affect the economy of the unit, the fuel consumption remains high, and reduce the fuel consumption for combustion and start-up, so as to achieve saving Oil consumption, reduced start-up oil consumption, and reduced fuel consumption

Inactive Publication Date: 2015-09-02
DATANG LUOYANG SHOUYANGSHAN POWER PLANT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] 4 units, including two 220MW units and two 300MW units. In recent years, under the influence of the fuel market, the fuel oil volume has increased year by year. According to statistics, the fuel oil volume in 2011 has reached nearly 800T. In recent years, through continuous exploration and practice, The gasification small oil gun burner was modified for the B-layer burner, which effectively reduced the fuel consumption of the unit for combustion support and part of the start-up, but the fuel consumption remained high, which seriously affected the economy of the unit

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] Step 1. After taking measures to prevent the fan from reversing in the primary fan of B, the boiler is purged;

[0039] Step 2. After the boiler is purged, close the primary air contact baffle, start the A primary fan, and make the outlet baffle of the B primary fan and its corresponding air preheater outlet baffle closed;

[0040] Step 3: After increasing the pressure of the primary air main pipe to 7Kpa within 5 seconds, reset the B coal mill, open the B coal mill outlet baffle, open the B coal mill hot air damper, hot air baffle and mixing damper, Keep the primary air volume at 40T / H;

[0041] Step 4. Keep the fuel pressure at 1.8Mpa, open the manual doors of the small oil gun fuel system and compressed air system in the furnace air duct, and put in the small oil gun on the B layer;

[0042] Step 5. Open the purge valve and purge the small oil gun in the air duct. After the purge is completed, put in a small oil gun in the air duct to control the wall temperature of...

Embodiment 2

[0048] Step 1. After taking measures to prevent the fan from reversing in the primary fan of B, the boiler is purged;

[0049]Step 2. After the boiler is purged, close the primary air contact baffle, start the A primary fan, and make the outlet baffle of the B primary fan and its corresponding air preheater outlet baffle closed;

[0050] Step 3: After increasing the pressure of the primary air main pipe to 7Kpa within 10 seconds, reset the B coal mill, open the B coal mill outlet baffle, open the B coal mill hot air damper, hot air baffle and mixing damper, Keep the primary air volume at 50T / H;

[0051] Step 4. Keep the fuel pressure at 2.0Mpa, open the manual doors of the fuel system and compressed air system of the small oil gun in the furnace air duct, and put in the small oil gun in the B layer;

[0052] Step 5. Open the purge valve and purge the small oil gun in the air duct. After the purge is completed, put in a small oil gun in the air duct to control the wall tempera...

Embodiment 3

[0058] Step 1. After taking measures to prevent the fan from reversing in the primary fan of B, the boiler is purged;

[0059] Step 2. After the boiler is purged, close the primary air contact baffle, start the A primary fan, and make the outlet baffle of the B primary fan and its corresponding air preheater outlet baffle closed;

[0060] Step 3: After increasing the pressure of the primary air main pipe to 7Kpa within 8 seconds, reset the B coal mill, open the B coal mill outlet baffle, open the B coal mill hot air damper, hot air baffle and mixing damper, Keep the primary air volume at 45T / H;

[0061] Step 4. Keep the fuel pressure at 1.9Mpa, open the manual doors of the fuel system and compressed air system of the small oil gun in the furnace air duct, and put in the small oil gun in the B layer;

[0062] Step 5. Open the purge valve and purge the small oil gun in the air duct. After the purge is completed, put in a small oil gun in the air duct to control the wall tempera...

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PUM

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Abstract

The invention discloses an optimized method for starting a heat engine. An air duct heated small oil gun device for mechanical atomizing is additionally mounted on a single-side primary air duct between an air preheater and a coal mill, meanwhile optimization is carried out on the starting method of a machine set, an oil gun is implemented in the preliminary stage of the starting of the machine set to heat cool air entering the coal mill, so that the wind temperature condition for starting the coal mill is achieved, and the purpose of achieving the start condition of the machine set by reducing oil consumption without using a large oil gun (oil burner) is reached.

Description

technical field [0001] The invention relates to a thermodynamic system, in particular to a boiler start-up optimization method which reduces the fuel consumption in the start-up process of the unit. Background technique [0002] Due to changes in the fuel market, the loss situation of power generation companies is still severe, and the rise in fuel prices has also increased the cost of power generation. At the same time, the impact of coal quality decline on the stable combustion of boilers has aggravated the consumption of fuel oil. Therefore, saving fuel oil has become an urgent need to solve. question. [0003] 4 units, including two 220MW units and two 300MW units. In recent years, under the influence of the fuel market, the fuel oil volume has increased year by year. According to statistics, the fuel oil volume in 2011 has reached nearly 800T. In recent years, through continuous exploration and practice, The gasification small oil gun burner was modified for the B-laye...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F23L15/00F23N3/06F23K1/00
CPCY02E20/34
Inventor 王辉谢文辉苏效奇赵启明韩学峰马明
Owner DATANG LUOYANG SHOUYANGSHAN POWER PLANT