CN206073133U - Plasma ignition system and applicable ultra-supercritical boiler - Google Patents
Plasma ignition system and applicable ultra-supercritical boiler Download PDFInfo
- Publication number
- CN206073133U CN206073133U CN201620938801.7U CN201620938801U CN206073133U CN 206073133 U CN206073133 U CN 206073133U CN 201620938801 U CN201620938801 U CN 201620938801U CN 206073133 U CN206073133 U CN 206073133U
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- China
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- plasma
- cooling blower
- plasma ignition
- fire inspection
- anode
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Abstract
This utility model discloses a kind of plasma ignition system, and the plasma ignition system is included：Plasma ignition device, which includes start-up burner, the plasma generation device that correspondence start-up burner is arranged and plasma flame detecting probe；Plasma fire inspection cooling blower, its input communicate to connect plasma ignition device, and air-out is towards plasma generation device；Triggering plasma fire inspection cooling blower startup work when plasma ignition device igniting, plasma generation device start provides plasma carrier wind, and when plasma generation device stops, control plasma fire inspection cooling blower quits work；Boiler fire inspection cooling blower, which maintains a normally open state, and air-out is towards plasma flame detecting probe.This utility model plasma fire inspection cooling blower and plasma ignition system linkage start and stop, reduce equipment operation, and reducing energy consumption is reduced and safeguarded.
Description
Technical field
This utility model is related to ignition of the boiler technology, and in particular to a kind of plasma ignition system and applicable ultra supercritical
Boiler.
Background technology
In recent years, because the continuous anxiety of the conventional boiler demand for fuel such as coal, oil, natural gas, and then price is lasting
Raise up, cause the fuel cost debugged and run to climb up and up.In order to reduce the consumption of diesel oil, the most of thermal power plants of China
Plasma ignition system is introduced, and then is reduced debugging and is run fuel cost, but in this increasingly competitive age, enterprise
Industry energy-conservation is particularly important, and the problem consumed energy in plasma system operation in the normal operation of unit just seems especially prominent.
Plasma ignition device is connect under conditions of 0.004 MP a ~ 0.03 MP a of medium air pressure using DC current
Tactile striking, and the direct current air plasma of firm power is obtained under high-intensity magnetic field control, the plasma is in special design
Temperature T ＞ 5000K, the great area of localized hyperthermia of thermograde are formed in burner centre combustion barrel, pulverized coal particle is by being somebody's turn to do
Plasma " fiery core " is by high temperature action, and in 1 × 10-3s discharges rapidly volatile matter, ruptures pulverized coal particle and crushes,
So as to burn rapidly, it helps accelerate the burning of coal dust, thus greatly reduce the fire ignition energy required for firing coal-dust.
Its composition be by cathode and anode plasma burner and its powder system, direct current supply and control system, plasma cooling blower,
Plasma cooling water pump and hot working supervisory system system composition.
As boiler controller system long period safe operation, start-stop time are reduced, the use time of plasma is shorter and shorter, adds
Coal varitation is big, fugitive constituent it is low, in the case that caloric value is low its effect it is more and more weaker.As plasma ignition device is in unit
Emergency use state is constantly in during normal operation, therefore its cooling blower is continuously run always, cause the waste of station service
With the loss of the energy.It is therefore proposed that article on plasma system operation mode is changed, ensureing not affecting its normal standby feelings
It is under condition, by scrap build so as to which cooling blower is in resting state, chain when needing to put into plasma apparatus to open cold
But blower fan, it is ensured that device entry condition meets, it is ensured that the needs of the safety of production and at utmost energy-conservation.
Utility model content
This utility model provides a kind of plasma ignition system and applicable ultra-supercritical boiler, and cooling device is set with igniting
Standby start and stop, reduce equipment operation, and reducing energy consumption is reduced and safeguarded.
For achieving the above object, this utility model provides a kind of plasma ignition system, is characterized in, the plasma ignition
System is included：
Plasma ignition device, its include start-up burner, correspondence start-up burner arrange plasma generation device and
Plasma flame detecting probe；
Plasma fire inspection cooling blower, its input communicate to connect plasma ignition device, and air-out is produced towards plasma
Device；Triggering plasma fire inspection cooling blower startup work when plasma ignition device igniting, plasma generation device start is carried
For plasma carrier wind, when plasma generation device stops, control plasma fire inspection cooling blower quits work；
Boiler fire inspection cooling blower, which maintains a normally open state, and air-out is towards plasma flame detecting probe.
Above-mentioned plasma fire inspection cooling blower flow is 1341 m3/h, and blast is 17.013 kPa, and power is 22 kW, is turned
Speed is 2930 r/min.
Above-mentioned boiler fire inspection cooling blower is centrifugal fan, and nominal air delivery is 2465 m3/h, and specified blast is 9.5
KPa, power are 11.2 kW, and rotating speed is 3530 r/min.
Above-mentioned plasma generation device is included：Anode, anode casing, insulating part, negative electrode, cathode shell and nozzle；Anode
Hollow tube-shaped electrode is with negative electrode, anode is arranged in anode casing, between anode outside wall surface and anode casing internal face
Form cooling duct；Negative electrode is arranged in cathode shell, forms cooling logical between negative electrode outside wall surface and cathode shell internal face
Road；Nozzle is arranged on inside cathode shell and adjacent with negative electrode；Insulating part is located between anode casing and cathode shell；Insulating part
One end for hollow circular cylinder, anode and negative electrode is extended respectively in the cavity of insulating part, and is formed between the anode and cathode
Inlet plenum；At least two tangential admission holes are formed on insulating part, pressure-air is from tangential admission hole with along axis rotation mode
It is injected tangentially inlet plenum；The centrage of adjacent anode, inlet plenum, negative electrode and nozzle is on same straight line successively.
Above-mentioned plasma ignition system also includes water-cooling system, and the water-cooling system includes circulation waterway, is arranged at recirculated water
Water temperature in road reduces device and cooling water pump；Radiating part is provided with circulation waterway, the radiating part by conducting-heat elements with wait from
Sub- igniter, and/or plasma fire inspection cooling blower, and/or boiler fire inspection cooling blower, and/or plasma flame detecting probe
Connection.
Above-mentioned plasma fire inspection cooling blower outfan is also connected to the cold air duct of coal pulverizer by pipeline gas circuit.
A kind of ultra-supercritical boiler, is characterized in, the boiler includes body of heater, and body of heater is provided with some coal feed points；Each enters
Coal mouth is connected to coal pulverizer, is provided with four angle burners in body of heater at coal feed point, and each angle burner is provided with above-mentioned plasma
Ignition system.
If above-mentioned boiler is additionally provided with the oil gun of the Heavenly Stems and Earthly Branches extension type for being divided into three-layer set, the oil gun is sprayed using mechanical atomization
Mouth, maximum output power are 1000kg/h.
Boiler fire inspection cooling blower is normally opened, provides cooling wind to boiler fire inspection equipment and plasma flame detecting probe；Plasma
When igniter starts, triggering plasma fire inspection cooling blower starts, there is provided plasma carrier wind；Plasma ignition device stops
During work, triggering plasma fire inspection cooling blower quits work.
This utility model plasma ignition system and control method and applicable ultra-supercritical boiler and prior art etc.
Ion ignition system cooling technology is compared, and is had an advantage in that, this utility model is changed to plasma fire detecting probe cooling by pot
Stove fire inspection cooling blower is provided, when using plasma ignition system, normal to start plasma fire inspection cooling blower, used as offer
Plasma carrier wind is used, and when plasma igniter is disabled, disables plasma fire inspection cooling blower, plasma fire inspection cooling wind
There is provided by boiler fire inspection cooling blower, reduce equipment operation, reducing energy consumption is reduced and safeguarded.
Description of the drawings
Structural scheme of mechanism of the Fig. 1 for this utility model plasma ignition system embodiment one；
Structural scheme of mechanism of the Fig. 2 for this utility model plasma ignition system embodiment two.
Specific embodiment
Below in conjunction with accompanying drawing, specific embodiment of the utility model is further illustrated.
As shown in figure 1, the utility model discloses a kind of embodiment one of plasma ignition system, the plasma ignition system
System is included：Plasma ignition device 101, plasma fire inspection cooling blower 102 and boiler fire inspection cooling blower 103.
Plasma ignition device 101 includes start-up burner（Do not indicate in figure）, correspondence start-up burner arrange etc. from
Sub- generator 105 and plasma flame detecting probe 105.
Plasma fire inspection cooling blower 102 input communication connection plasma ignition device 101, air-out are produced towards plasma
Generating apparatus 102.When plasma ignition device 101 is lighted a fire, triggering plasma fire inspection cooling wind when plasma generation device 102 starts
Machine 102 starts work, is that plasma generation device 105 provides plasma carrier wind；When plasma generation device 105 stops, control
Plasma fire inspection cooling blower 102 processed quits work.
Plasma fire 102 flow of inspection cooling blower is 1341 m3/h, and blast is 17.013 kPa, and power is 22 kW, is turned
Speed is 2930 r/min.
Boiler fire inspection cooling blower 103 maintains a normally open state, for radiating for boiler flame detecting probe, the boiler fire inspection cooling
The coverage rate of 103 air-out of blower fan include plasma flame detecting probe 105, realize while radiating for boiler flame detecting probe, also for
Plasma flame detecting probe 105 is radiated.
Boiler fire inspection cooling blower 103 is centrifugal fan, and nominal air delivery is 2465 m3/h, and specified blast is 9.5
KPa, power are 11.2 kW, and rotating speed is 3530 r/min.
A kind of embodiment of plasma generation device 102, which includes：Outside anode, anode casing, insulating part, negative electrode, negative electrode
Shell and nozzle；Anode and negative electrode are hollow tube-shaped electrode, and anode is arranged in anode casing, outside anode outside wall surface and anode
Cooling duct is formed between shell internal face；Negative electrode is arranged in cathode shell, negative electrode outside wall surface and cathode shell internal face it
Between form cooling duct；Nozzle is arranged on inside cathode shell and adjacent with negative electrode；Insulating part is located at outside anode casing and negative electrode
Between shell；Insulating part is that one end of hollow circular cylinder, anode and negative electrode is extended respectively in the cavity of insulating part, and in anode and
Inlet plenum is formed between negative electrode；At least two tangential admission holes are formed on insulating part, pressure-air is from tangential admission hole with edge
Axis rotation mode is injected tangentially inlet plenum；The centrage of adjacent anode, inlet plenum, negative electrode and nozzle is same successively
On bar straight line.
Plasma ignition system also includes water-cooling system（Do not indicate in figure）, the water-cooling system include circulation waterway, arrange
Water temperature in circulation waterway reduces device and cooling water pump；Radiating part is provided with circulation waterway, the radiating part passes through heat-conducting part
Part and plasma ignition device 101, and/or plasma fire inspection cooling blower 102, and/or boiler fire inspection cooling blower 103, and/
Or plasma flame detecting probe 105 connects, by plasma ignition device 101, and/or plasma fire inspection cooling blower 102, and/or
The heat that boiler fire inspection cooling blower 103, and/or plasma flame detecting probe 105 are produced is derived by water and realizes radiating.
A kind of above-mentioned control principle of plasma ignition system of this utility model is as follows：
S1, boiler fire inspection cooling blower are normally opened, provide cooling wind to boiler fire inspection equipment and plasma flame detecting probe；
Whether S2, plasma ignition device start, if then jumping to S3, if otherwise jumping to S4.
When S3, plasma ignition device start, triggering plasma fire inspection cooling blower starts, there is provided plasma carrier wind,
And jump to S2.
When S4, plasma ignition device quit work, triggering plasma fire inspection cooling blower quits work, and jumps to
S2。
The invention also discloses a kind of suitable for above-mentioned plasma ignition system and its ultra supercritical of control method
Boiler, the boiler include body of heater, and body of heater is provided with some coal feed points；Each coal feed point is connected to coal pulverizer, coal feed point in body of heater
Place is provided with four angle burners, and each angle burner is provided with above-mentioned plasma ignition system.
If boiler is additionally provided with the oil gun of the Heavenly Stems and Earthly Branches extension type for being divided into three-layer set, the oil gun adopts atomizing nozzle,
Maximum output power is 1000kg/h.
As shown in Fig. 2 for a kind of embodiment two of plasma ignition system, plasma fire inspection cooling wind in former ignition system
Machine 301 is connected to and is arranged at towards plasma flame detecting probe 303 and plasma generation device by pipeline, gas circuit（It is table in figure
Show）Air outlet, while boiler fire inspection cooling blower 302 be connected to also by pipeline gas circuit be arranged at towards plasma fire inspection visit
303 air outlet 306.The characteristics of the present embodiment, is, in plasma fire inspection cooling blower 301 to plasma flame detecting probe
The air outlet 305 of 303 air-supplies, the former pipeline of cut-off install plug additional, and closing plasma fire inspection cooling blower 301 is examined to plasma fire
The former air outlet of 303 air-supply of probe, realizes only having boiler fire inspection cooling blower 302 to radiate to the air-supply of plasma flame detecting probe 303.
In addition, plasma fire inspection 301 outfan of cooling blower is also connected to the cold air duct of coal pulverizer by pipeline gas circuit
304。
Although content of the present utility model has been made to be discussed in detail by above preferred embodiment, but it should be appreciated that on
The description stated is not considered as to restriction of the present utility model.After those skilled in the art have read the above, for
Various modifications and substitutions of the present utility model all will be apparent.Therefore, protection domain of the present utility model should be by appended
Claim limiting.
Claims (8)
1. a kind of plasma ignition system, it is characterised in that the plasma ignition system is included：
Plasma ignition device, its include start-up burner, correspondence start-up burner arrange plasma generation device and wait from
Sub- flame detecting probe；
Plasma fire inspection cooling blower, its input communicate to connect plasma ignition device, and air-out is towards plasma generation device；
When plasma ignition device igniting, plasma generation device start the inspection cooling blower startup work of triggering plasma fire provide etc. from
Subcarrier wind, when plasma generation device stops, control plasma fire inspection cooling blower quits work；
Boiler fire inspection cooling blower, which maintains a normally open state, and air-out is towards plasma flame detecting probe.
2. plasma ignition system as claimed in claim 1, it is characterised in that the plasma fire inspection cooling blower flow is
1341 m3/ h, blast are 17.013 kPa, and power is 22 kW, and rotating speed is 2930 r/min.
3. plasma ignition system as claimed in claim 1, it is characterised in that the boiler fire inspection cooling blower is centrifugal
Blower fan, nominal air delivery are 2465 m3/ h, specified blast are 9.5 kPa, and power is 11.2 kW, and rotating speed is 3530 r/min.
4. plasma ignition system as claimed in claim 1, it is characterised in that the plasma generation device is included：Anode,
Anode casing, insulating part, negative electrode, cathode shell and nozzle；Anode and negative electrode are hollow tube-shaped electrode, and anode is arranged on anode
Inside the shell, forms cooling duct between anode outside wall surface and anode casing internal face；Negative electrode is arranged in cathode shell, in the moon
Cooling duct is formed between pole outside wall surface and cathode shell internal face；Nozzle is arranged on inside cathode shell and adjacent with negative electrode；
Insulating part is located between anode casing and cathode shell；Insulating part is that one end of hollow circular cylinder, anode and negative electrode each extends over
To the cavity of insulating part, and inlet plenum is formed between the anode and cathode；At least two tangential admissions are formed on insulating part
Hole, pressure-air is from tangential admission hole being injected tangentially inlet plenum along axis rotation mode；Adjacent anode, air inlet successively
The centrage of room, negative electrode and nozzle is on same straight line.
5. plasma ignition system as claimed in claim 1, it is characterised in that the plasma ignition system also includes water-cooled
System, the water-cooling system include circulation waterway, and the water temperature being arranged in circulation waterway reduces device and cooling water pump；Circulation waterway
In be provided with radiating part, the radiating part by conducting-heat elements and plasma ignition device, and/or plasma fire inspection cooling blower and/
Or boiler fire inspection cooling blower, and/or the connection of plasma flame detecting probe.
6. plasma ignition system as claimed in claim 1, it is characterised in that the plasma fire inspection cooling blower outfan
The cold air duct of coal pulverizer is connected to by pipeline gas circuit also.
7. a kind of ultra-supercritical boiler, it is characterised in that the boiler includes body of heater, body of heater is provided with some coal feed points；Each enters
Coal mouth is connected to coal pulverizer, is provided with four angle burners in body of heater at coal feed point, each angle burner be provided with as claim 1 to
Plasma ignition system in 6 described in any one claim.
8. ultra-supercritical boiler as claimed in claim 7, it is characterised in that the boiler is additionally provided with and is divided into some of three-layer set
The oil gun of extension type is propped up, the oil gun adopts atomizing nozzle, and maximum output power is 1000kg/h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620938801.7U CN206073133U (en) | 2016-08-25 | 2016-08-25 | Plasma ignition system and applicable ultra-supercritical boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620938801.7U CN206073133U (en) | 2016-08-25 | 2016-08-25 | Plasma ignition system and applicable ultra-supercritical boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206073133U true CN206073133U (en) | 2017-04-05 |
Family
ID=58431773
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620938801.7U Expired - Fee Related CN206073133U (en) | 2016-08-25 | 2016-08-25 | Plasma ignition system and applicable ultra-supercritical boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206073133U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106196165A (en) * | 2016-08-25 | 2016-12-07 | 江苏大唐国际吕四港发电有限责任公司 | Plasma ignition system and control method and applicable ultra-supercritical boiler |
| CN113587142A (en) * | 2021-06-30 | 2021-11-02 | 华能国际电力股份有限公司上海石洞口第一电厂 | Plasma micro-oil composite ignition system and layered prediction control method thereof |
-
2016
- 2016-08-25 CN CN201620938801.7U patent/CN206073133U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106196165A (en) * | 2016-08-25 | 2016-12-07 | 江苏大唐国际吕四港发电有限责任公司 | Plasma ignition system and control method and applicable ultra-supercritical boiler |
| CN113587142A (en) * | 2021-06-30 | 2021-11-02 | 华能国际电力股份有限公司上海石洞口第一电厂 | Plasma micro-oil composite ignition system and layered prediction control method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170405 Termination date: 20210825 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |