CN201844417U - Rich oxygen ignition device for pulverized coal fired boiler - Google Patents

Rich oxygen ignition device for pulverized coal fired boiler Download PDF

Info

Publication number
CN201844417U
CN201844417U CN201020567615XU CN201020567615U CN201844417U CN 201844417 U CN201844417 U CN 201844417U CN 201020567615X U CN201020567615X U CN 201020567615XU CN 201020567615 U CN201020567615 U CN 201020567615U CN 201844417 U CN201844417 U CN 201844417U
Authority
CN
China
Prior art keywords
enriched
oxygen
rich oxygen
pulverized coal
pipe
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
CN201020567615XU
Other languages
Chinese (zh)
Inventor
朱姗
姚燕强
王伟
徐立弘
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shanghai Boiler Works Co Ltd
Original Assignee
Shanghai Boiler Works Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shanghai Boiler Works Co Ltd filed Critical Shanghai Boiler Works Co Ltd
Priority to CN201020567615XU priority Critical patent/CN201844417U/en
Application granted granted Critical
Publication of CN201844417U publication Critical patent/CN201844417U/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E20/00Combustion technologies with mitigation potential
    • Y02E20/34Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery

Abstract

The utility model relates to a rich oxygen ignition device for pulverized coal fired boiler, which is characterized by comprising a pulverized coal pipe and a high-temperature rich oxygen chamber arranged in the pulverized coal pipe, a rich oxygen airflow pipe is communicated into the pulverized coal pipe, and a high-temperature rich oxygen heater is arranged on the rich oxygen airflow pipe. The rich oxygen ignition device has the advantages that the rich oxygen ignition device can save fuel oil, is reasonable in structure, easy in maintenance, small in start energy and low in operation cost, integrates fuels of power plants, omits fuel oil equipment and oil supply pipelines, saves investment of capital construction and management cost, is strong in applicability and applicable to different types of pulverized coal fired boilers, and can be used for stabilizing and supporting combustion during low-load operation of the boiler.

Description

A kind of pulverized-coal fired boiler oxygen-enriched ignition device
Technical field
The utility model relates to a kind of pulverized-coal fired boiler oxygen-enriched ignition device.
Background technology
When pulverized-coal fired boiler starts operation, generally adopt the grease gun igniting coal dust that ignites to start boiler, treat that burner hearth burns coal powder ignition when putting above high temperature, just drops into coal dust.It is wide that conventional grease gun igniting is suitable for the coal scope, but igniting needs big oil storage tank of configuration and oil pump room, and system takes up an area of big, and boiler startup igniting combustion supporting oil consumption is huge, the expense height.
Summary of the invention
The purpose of this utility model is to propose a kind of non-oil ignition device that uses high-temperature oxygen-enriched gas to light the different quality coal dust, and not only operating cost is few and light a fire effective.
In order to achieve the above object, the technical solution of the utility model has provided a kind of pulverized-coal fired boiler oxygen-enriched ignition device, it is characterized in that: comprise coal pipe and be located at the interior high-temperature oxygen-enriched chamber of coal pipe, the oxygen-enriched stream pipe feeds in the coal pipe, is provided with high-temperature oxygen-enriched heater on the oxygen-enriched stream pipe.
Further, described oxygen-enriched stream pipe and described high-temperature oxygen-enriched chamber are all tubulose, and high-temperature oxygen-enriched chamber is connected on behind the oxygen-enriched stream pipe and is interconnected.
Front end in described high-temperature oxygen-enriched chamber is provided with and allows the one-level coal dust flow to the inlet of high-temperature oxygen-enriched chamber.
The utility model has the advantages that: can save fuel oil, rational in infrastructure, safeguard that easily, it is little to start energy, operating cost is low; Make Power Plant Fuel integrated, need not to set up fuel oil equipment and oil supply pipe, save capital expenditure and administrative expenses; Applicability is strong, is applicable to dissimilar pulverized-coal fired boilers, and can be used for the steady combustion in boiler at low load when operation and combustion-supporting.
Description of drawings
A kind of pulverized-coal fired boiler oxygen-enriched ignition device schematic diagram that Fig. 1 provides for the utility model.
The specific embodiment
Specify the utility model below in conjunction with embodiment.
Embodiment
As shown in Figure 1, be a kind of pulverized-coal fired boiler oxygen-enriched ignition device that the utility model provides, comprise coal pipe 1 and be located at high-temperature oxygen-enriched chamber 4 in the coal pipe 1 that oxygen-enriched stream pipe 2 feeds in the coal pipes 1, is provided with high-temperature oxygen-enriched heater 3 on oxygen-enriched stream pipe 2.Oxygen-enriched stream pipe 2 and high-temperature oxygen-enriched chamber 4 are all tubulose, and high-temperature oxygen-enriched chamber 4 is connected on oxygen-enriched stream pipe 2 backs and is interconnected.Front end in high-temperature oxygen-enriched chamber 4 is provided with and allows the one-level coal dust flow to the inlet 5 of high-temperature oxygen-enriched chamber 4.
During igniting, the carbon dioxide that is extracted by back-end ductwork is that coal dust that main flue gas recycled carries enters and splits into small part behind the coal pipe 1 and enter the still mobile secondary pulverized coal flow that forms coal pipe 1 in of the one-level pulverized coal flow of high-temperature oxygen-enriched chamber 4 and all the other most of coal dusts through high-temperature oxygen-enriched chamber 4 inlets 5.High-temperature oxygen-enriched air is heated to more than 300 degrees centigrade and from oxygen-enriched stream pipe 2 by high-temperature oxygen-enriched heater 3 and enters high-temperature oxygen-enriched chamber 4, and the one-level pulverized coal flow meets in high-temperature oxygen-enriched chamber 4 with high-temperature oxygen-enriched air and mixes, and the one-level coal dust is lighted, and lights the secondary coal dust then.

Claims (3)

1. pulverized-coal fired boiler oxygen-enriched ignition device, it is characterized in that: comprise coal pipe (1) and be located at the interior high-temperature oxygen-enriched chamber (4) of coal pipe (1), oxygen-enriched stream pipe (2) feeds in the coal pipe (1), is provided with high-temperature oxygen-enriched heater (3) on oxygen-enriched stream pipe (2).
2. a kind of pulverized-coal fired boiler oxygen-enriched ignition device as claimed in claim 1 is characterized in that: described oxygen-enriched stream pipe (2) and described high-temperature oxygen-enriched chamber (4) are all tubulose, and high-temperature oxygen-enriched chamber (4) are connected on oxygen-enriched stream pipe (2) back and are interconnected.
3. a kind of pulverized-coal fired boiler oxygen-enriched ignition device as claimed in claim 1 is characterized in that: the front end in described high-temperature oxygen-enriched chamber (4) is provided with and allows the one-level coal dust flow to the inlet (5) of high-temperature oxygen-enriched chamber (4).
CN201020567615XU 2010-10-20 2010-10-20 Rich oxygen ignition device for pulverized coal fired boiler Expired - Lifetime CN201844417U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201020567615XU CN201844417U (en) 2010-10-20 2010-10-20 Rich oxygen ignition device for pulverized coal fired boiler

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201020567615XU CN201844417U (en) 2010-10-20 2010-10-20 Rich oxygen ignition device for pulverized coal fired boiler

Publications (1)

Publication Number Publication Date
CN201844417U true CN201844417U (en) 2011-05-25

Family

ID=44039306

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201020567615XU Expired - Lifetime CN201844417U (en) 2010-10-20 2010-10-20 Rich oxygen ignition device for pulverized coal fired boiler

Country Status (1)

Country Link
CN (1) CN201844417U (en)

Similar Documents

Publication Publication Date Title
CN201059598Y (en) Blunt body micro-oil-gasification ignition combusting device
CN200961855Y (en) Plasma coal powder burner
CN201844417U (en) Rich oxygen ignition device for pulverized coal fired boiler
CN203927900U (en) A kind of micro-oil coal powder burner
CN202927882U (en) Cold state ignition device for low-emission boiler
CN206094003U (en) Realize that ultralow load safety ring of coal fired boiler protects degree of depth peak regulation device of operation
CN202562026U (en) Coal-fired and gas-fired dual-purpose vertical hot-blast stove
CN101191614B (en) General purpose coal dust micro-oil igniting method
CN106032907B (en) Blast furnace gas burner igniter
CN201954535U (en) Ignition air flue below circulating fluidized bed
CN202203980U (en) Energy-saving combustion device adopting combustion method of water electrolysis oxyhydrogen and fuel blending
CN102506423B (en) Method for assisting in igniting low-volatile coal in burning by adding oxygen
CN202792005U (en) Pulverized coal boiler weak breath ignition device
CN202938289U (en) Fuel-saving ignition device of circulating fluidized bed boiler
CN104235877B (en) A kind of pulverized coal firing boiler gas burner and control method thereof
CN103471239A (en) Environment friendly methanol boiler
CN201487948U (en) Central oxygen enrichment tiny oil start-up burner
CN204084456U (en) The micro oil ignition system of generating plant pulverized coal boiler cold state spark and low-load combustion-stabilizing
CN202757119U (en) Ignition device for fan-grinder milling boiler
CN203785445U (en) Special aluminium alloy smelting holding furnace used for biological alcohol oil
CN202647722U (en) Oil saving igniting device of high-temperature boiler
CN203533549U (en) Micro-oil ignition and oxygen adding burner
CN202692059U (en) Distributing cover of cluster jet flow gas supplementation type gas burner
CN207648798U (en) The full premix heating stove of cast aluminium formula heat exchange
CN105114992A (en) Oil-fired heating furnace for camping

Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
CX01 Expiry of patent term
CX01 Expiry of patent term

Granted publication date: 20110525