Rapid production method of bow-shaped water tube boiler

A production method and a bow-shaped water tube technology are applied in the field of rapid production of bow-shaped water tube boilers, which can solve the problems of lowering fuel thermal efficiency, inconvenient use and management, and large floor space, so as to improve operating efficiency and economy, reduce thermal deviation and The effect of steam temperature deviation and preventing local metal overheating

Inactive Publication Date: 2018-04-13
GUANGDONG HUILIPU ROAD & BRIDGE INFORMATION ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This way of use is the two-in-one docking of the pellet fuel burner and the boiler to play the heating function. This form of burning biomass pellet fuel also has a large footprint, is not durable, and is inconvenient to use and manage. The engine is burned outside the boiler, so there is a problem of heat loss, which reduces the thermal efficiency of fuel use.

Method used

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  • Rapid production method of bow-shaped water tube boiler
  • Rapid production method of bow-shaped water tube boiler

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Embodiment 1. A kind of bow-shaped water tube boiler rapid production method comprises the following steps:

[0031] 1) Determine the angle of the nozzle of the biomass gasification gas. The injection angle formed by the biomass gasification gas nozzle and the furnace wall in the upper circle is 80±2°, and the injection angle formed by the biomass gasification gas nozzle and the furnace wall in the lower circle is The angle is 70±2°;

[0032] 2) The primary air is blown in from the bottom of the boiler furnace, and the primary air is composed of the air blown in by the blower and the flue gas recycled by the chimney;

[0033] 3) On the upper part of the secondary air inlet of the boiler wall, a biomass gasification gas nozzle is arranged. In the main combustion area of ​​the boiler, the secondary air is mixed with the biomass powder to carry out high-temperature combustion, and the high-temperature combustion of the biomass powder It is further mixed with the biomass g...

Embodiment 2

[0041] Embodiment 2. A kind of bow-shaped water tube boiler rapid production method comprises the following steps:

[0042] 1) Determine the angle of the nozzle of the biomass gasification gas. The injection angle formed by the biomass gasification gas nozzle and the furnace wall in the upper circle is 75±2°, and the injection angle formed by the biomass gasification gas nozzle and the furnace wall in the lower circle is The angle is 60±2°;

[0043] 2) The primary air is blown in from the bottom of the boiler furnace, and the primary air is composed of the air blown in by the blower and the flue gas recycled by the chimney;

[0044] 3) On the upper part of the secondary air inlet of the boiler wall, a biomass gasification gas nozzle is arranged. In the main combustion area of ​​the boiler, the secondary air is mixed with the biomass powder to carry out high-temperature combustion, and the high-temperature combustion of the biomass powder It is further mixed with the biomass g...

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Abstract

The invention discloses a rapid production method of a bow-shaped water tube boiler. The rapid production method of the bow-shaped water tube boiler comprises the following steps that angles of biomass gasification gas nozzles are determined, aiming at all fuel, all combustion working conditions, the corresponding upward-swing angle values of the biomass gasification gas nozzles are set, the upward-swing angle values of at least two biomass gasification gas nozzles are different of each other, a boiler combustion adjusting test is conducted according to all the fuels and the corresponding upward-swing angle values of all the biomass gasification gas nozzles, and the thermal deviation of the left side and the right side of a reheater and the temperature deviation of reheat steam are detected. According to the rapid production method of the bow-shaped water tube boiler, the thermal deviation of the left side and the right side of the reheater of the pulverized coal boiler and the temperature deviation of the steam of the reheater can be effectively reduced, the average temperature of the reheat steam is improved, the operation efficiency and economy of a unit are improved, meanwhile,local metal over-temperature of the reheater is prevented, the frequency of boiler tube bursting is reduced, and the operation safety of the boiler is improved.

Description

technical field [0001] The invention relates to the field of use of water tube boilers, in particular to a rapid production method for bow-shaped water tube boilers. Background technique [0002] Because the cross-section inside the tube is smaller than the outside of the tube, the steam-water flow rate is greatly increased, and the steam generated on the heating surface is immediately washed away, which improves the heat absorption rate of the pot water. Compared with shell boilers, water tube boilers have a smaller drum diameter, higher working pressure, and smaller boiler water capacity. Once an accident occurs, the disaster will be lighter, the boiler water circulation is good, the evaporation efficiency is high, the performance of adapting to load changes is better, and the thermal efficiency is higher. . Therefore, boilers with higher pressure and larger evaporation are all water tube boilers. The so-called water tube boiler is a boiler in which water, steam or a mix...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F23C1/12F23C7/00F23K5/00F23L5/02F23L9/00
CPCF23C1/12F23C7/00F23K5/007F23L5/02F23L9/00
Inventor 陈钰龙周爱明王大波梁活强闲新仔雷龙云周柳奇
Owner GUANGDONG HUILIPU ROAD & BRIDGE INFORMATION ENG
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