CN205560722U - Controllable pulverized coal combustion device of flame - Google Patents
Controllable pulverized coal combustion device of flame Download PDFInfo
- Publication number
- CN205560722U CN205560722U CN201620281786.3U CN201620281786U CN205560722U CN 205560722 U CN205560722 U CN 205560722U CN 201620281786 U CN201620281786 U CN 201620281786U CN 205560722 U CN205560722 U CN 205560722U
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- air
- pipe
- tertiary
- blower fan
- intake pipe
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Abstract
The utility model relates to a controllable pulverized coal combustion device of flame, including wind air -supply line, overgrate air air -supply line, tertiary air air -supply line, wind fan, overgrate air fan, tertiary air fan, wind blast pipe, overgrate air blast pipe, tertiary air blast pipe, buggy source and a combustor, each air -supply line, fan, blast pipe, combustor correspond in proper order and connect, and the buggy source is connected with a blast pipe. The device still includes oxygen inlet pipe and inert gas intake pipe, and oxygen inlet pipe and inert gas intake pipe are connected with a wind air -supply line, and the last oxygen adjusting valve that is equipped with of oxygen inlet pipe is equipped with inert gas adjusting valve in the inert gas intake pipe. This device can contain under the qualification of buggy proportion not improving a wind, forms oxygendeficient burning atmosphere a wind export, can also adjust the proportion of inert gas and oxygen in a flexible way, through the automatic control of control end, prevents to damage the fan when two valves from closing simultaneously.
Description
Technical field
This utility model relates to burner field, is specifically related to the coal powder burner that a kind of flame is controlled.
Background technology
Current boiler of power plant and Industrial Boiler are used mostly coal dust as boiler oil, the coal powder burner of current main flow include by
Interior to the primary air piping being socketed successively outward, secondary air channel, tertiary-air pipe, it is respectively adopted three set air feed systems and three airducts are carried out
Air feed, primary air piping connects coal dust source, plays transmission coal dust and provides the effect of oxygen.In combustion, the nitrogen in air
Gas can combine with oxygen in high temperature environments and form nitrogen oxides, the biggest to atmospheric environment harm.Main flow reduces nitrogen oxides at present
Method be central high temperature combustion zone formed oxygen deprivation reducing atmosphere, form oxygen-enriched lower-temperature atmosphere in periphery, under oxygen-lean atmosphere
Nitrogen oxides can be reduced into oxygen and nitrogen after generation immediately, and under lower-temperature atmosphere, nitrogen will not react with oxygen, the most just
Nitrogen oxides will not be formed.Peripheral oxygen-enriched atmosphere can also make carbon monoxide, unknown rational number etc. that central combustion zone produces flammable
Thing fully burns.The wind regime of the First air that the most existing coal powder burner is used is all that the oxygen content such as air are high at present
Wind, therefore can only use the method increasing coal dust ratio contained by First air to ensure the oxygen-poor reduction atmosphere of central combustion zone, this
The method of kind is easily subject to the impact of the factor such as temperature, coal dust kind, if coal dust contained by First air is too much, there is also blocking pipeline
Hidden danger.It addition, common coal powder burner cannot flame produced by flexible.
Summary of the invention
The purpose of this utility model: the shortcoming not possessing flame regulatory function for existing coal powder burner, it is provided that a kind of flame
Controlled coal powder burner, including primary air intake pipe, secondary air intake pipe, tertiary air blast pipe, First air blower fan, two
Secondary wind blower fan, tertiary air blower fan, First air ajutage, secondary wind ajutage, tertiary air ajutage, coal dust source and burner,
Burner includes primary air piping, secondary air channel, tertiary-air pipe and the igniter being socketed the most successively, primary air intake pipe
Being connected with the front end of First air blower fan, secondary air intake pipe is connected with the front end of secondary wind blower fan, tertiary air blast pipe and tertiary air
The front end of blower fan connects, and First air ajutage connects First air blower fan and primary air piping, secondary wind ajutage connecting secondary wind blower fan
And secondary air channel, tertiary air ajutage connects tertiary air blower fan and tertiary-air pipe, and coal dust source is connected with First air ajutage.This dress
Putting and also include oxygen intake pipe, inert gas inleting pipe, oxygen intake pipe, inert gas inleting pipe are all with primary air intake pipe even
Connecing, oxygen intake pipe is provided with oxygen regulating valve door, and inert gas inleting pipe is provided with noble gas control valve.
As preferably, this utility model also includes controlling end, control end respectively with oxygen regulating valve door and noble gas control valve
Connect.
The beneficial effects of the utility model are: oxygen intake pipe set before First air ajutage and inert gas inleting pipe can be
Do not improve under the restrictive condition of coal dust ratio contained by First air, go out the combustion atmospheres of interruption-forming oxygen deprivation at primary air piping；Oxygen regulates
The ratio of valve and noble gas control valve energy flexible noble gas and oxygen；Control end respectively with oxygen regulating valve door and
Noble gas control valve connects, and effect is to be automatically controlled by control end, makes oxygen regulating valve door and noble gas control valve
Realize linkage regulation, prevent two valves from simultaneously closing off, damage blower fan.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of this utility model specific embodiment.
Detailed description of the invention
Below in conjunction with embodiment and by accompanying drawing, this utility model is further described.
Embodiment:
As it is shown in figure 1, the coal powder burner that a kind of flame is controlled, including primary air intake pipe 101, secondary air intake pipe 201,
Tertiary air blast pipe 301, First air blower fan 102, secondary wind blower fan 202, tertiary air blower fan 302, First air ajutage 103,
Secondary wind ajutage 203, tertiary air ajutage 303, burner 4, coal dust source 5, control end 6, burner 4 includes by interior
To the primary air piping 401, secondary air channel 402, tertiary-air pipe 403 and igniter 404, the primary air intake pipe that are socketed successively outward
101 are connected with the front end of First air blower fan 102, and secondary air intake pipe 201 is connected with the front end of secondary wind blower fan 202, three times
Wind blast pipe 301 is connected with the front end of tertiary air blower fan 302, and First air ajutage 103 connects First air blower fan 102 and once
Airduct 401, secondary wind ajutage 203 connecting secondary wind blower fan 202 and secondary air channel 402, tertiary air ajutage 303 connects three
Secondary wind blower fan 302 and tertiary-air pipe 403, coal dust source 5 is connected with First air ajutage 103, and this device also includes oxygen air inlet
Pipe 7, inert gas inleting pipe 8, oxygen intake pipe 7 and inert gas inleting pipe 8 are all connected with primary air intake pipe 101, oxygen
Gas air inlet pipe 7 is provided with oxygen regulating valve door 701, and inert gas inleting pipe 8 is provided with noble gas control valve 801.
Control end 6 to be connected with oxygen regulating valve door 701 and noble gas control valve 801 respectively.
Claims (2)
- null1. the coal powder burner that a flame is controlled，Including primary air intake pipe、Secondary air intake pipe、Tertiary air blast pipe、First air blower fan、Secondary wind blower fan、Tertiary air blower fan、First air ajutage、Secondary wind ajutage、Tertiary air ajutage、Coal dust source and burner，Burner includes the primary air piping being socketed the most successively、Secondary air channel、Tertiary-air pipe and igniter，Primary air intake pipe is connected with the front end of First air blower fan，Secondary air intake pipe is connected with the front end of secondary wind blower fan，Tertiary air blast pipe is connected with the front end of tertiary air blower fan，First air ajutage connects First air blower fan and primary air piping，Secondary wind ajutage connecting secondary wind blower fan and secondary air channel，Tertiary air ajutage connects tertiary air blower fan and tertiary-air pipe，Coal dust source is connected with First air ajutage，It is characterized in that: also include oxygen intake pipe、Inert gas inleting pipe，Oxygen intake pipe、Inert gas inleting pipe is all connected with primary air intake pipe，Oxygen intake pipe is provided with oxygen regulating valve door，First air air inlet pipe is provided with noble gas control valve.
- The coal powder burner that flame the most according to claim 1 is controlled, it is characterised in that: include controlling end, control end and be connected with oxygen regulating valve door, noble gas control valve respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620281786.3U CN205560722U (en) | 2016-04-07 | 2016-04-07 | Controllable pulverized coal combustion device of flame |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620281786.3U CN205560722U (en) | 2016-04-07 | 2016-04-07 | Controllable pulverized coal combustion device of flame |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205560722U true CN205560722U (en) | 2016-09-07 |
Family
ID=56811081
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620281786.3U Active CN205560722U (en) | 2016-04-07 | 2016-04-07 | Controllable pulverized coal combustion device of flame |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205560722U (en) |
-
2016
- 2016-04-07 CN CN201620281786.3U patent/CN205560722U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |