CN207702517U - A kind of igniting supply air system - Google Patents
A kind of igniting supply air system Download PDFInfo
- Publication number
- CN207702517U CN207702517U CN201721732491.4U CN201721732491U CN207702517U CN 207702517 U CN207702517 U CN 207702517U CN 201721732491 U CN201721732491 U CN 201721732491U CN 207702517 U CN207702517 U CN 207702517U
- Authority
- CN
- China
- Prior art keywords
- pitch
- coal
- air
- main pipeline
- pulverizers
- 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 - Fee Related
Links
Classifications
-
- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
Abstract
Igniting supply air system described in the utility model, by the hot wind after steam air heater heats of A coal machine pitch, by shunt valve introducing, the utility model is related to a kind of ignition of the boiler supply air systems.A kind of igniting supply air system described in the utility model, including at least A coal pulverizers pitch, B coal pulverizers pitch, C coal pulverizers pitch, First air air supply duct and intermediate main pipeline, A coal pulverizers pitch, B coal pulverizers pitch, C coal pulverizer pitch are respectively connected between on main pipeline, and it is arranged at the same side of intermediate main pipeline, First air air supply duct is connected between the other side of main pipeline, and a steam air heater is equipped in the intermediate main pipeline.For this reality to C coal pulverizer pitch, it is C coal pulverizer pitch conveying heating wind to grind the warm wind in pitch using A, has effectively ensured igniting startup function of the C coal pulverizers under cold conditions environment.
Description
Technical field
The utility model is related to a kind of ignition of the boiler supply air systems.
Background technology
Pulverized-coal fired boiler starting ignition, low-load combustion-stabilizing and stop the important component that furnace oil is power plants generating electricity cost.For
Reduction cost of electricity-generating, improves the overall economy quality of unit, the fuel-economizing firing technique of Development of Novel has great meaning, gesture to exist
It must go.Plasma-ignition technique is during a pulverized coal boiler ignition and steady combustion with the new technology of coal for replacing oil.From 2000 9
Since month, plasma-ignition technique is widely used in constantly improve, achieves huge economic benefit and social benefit.
Currently, the technology has been applied to more than 500 station boiler, include different types of coal：Bituminous coal, lignite；Unit capacity grade from
50MW~1000MW；Burner includes tangential firing DC burner and wall firing turbulent burner；Pulverized coal preparation system type packet
Include in ball mill store up formula, double-in and double-out ball mill is direct-firing and medium-speed pulverizer is direct-firing.Many enthusiastical ground of electricity power enterprise are actively
It supports and fosters this new technology jointly, this new technology audaciously, is scientifically promoted the use of, on the basis of a large amount of engineering practices
On, so that the technology is gradually developed, technology is increasingly mature, and system is advanced optimized, is perfect, and the reliability of device obtains significantly
It improves.
Invention content
The utility model proposes a kind of ignition of the boiler supply air systems applied to plasma igniting.
A kind of igniting supply air system is sent including at least A coal pulverizers pitch, B coal pulverizers pitch, C coal pulverizers pitch, First air
Wind pipeline and intermediate main pipeline, A coal pulverizers pitch, B coal pulverizers pitch, C coal pulverizer pitch are respectively connected between main pipeline
On, and it is arranged at the same side of intermediate main pipeline, First air air supply duct is connected between the other side of main pipeline, in described
Between a steam air heater is equipped in main pipeline, the steam air heater is arranged between A coal pulverizers pitch and B coal pulverizer pitch, A coal pulverizer tune
The air outlet of door is connected to by shunt valve at the air outlet of C coal pulverizer pitch, and the shunt valve is equipped with control valve.
Preferably, the output end of the First air air supply duct is arranged between B coal pulverizers pitch and steam air heater.
Preferably, the C coal pulverizers pitch is equipped with insertion plate door, and shunt valve is connected to insertion plate door and C coal pulverizer pitch
Between output end.
The hot wind after steam air heater heats of A coal machine pitch is passed through bypass by igniting supply air system described in the utility model
Pipe is introduced to C coal pulverizer pitch, and it is C coal pulverizer pitch conveying heating wind to grind the warm wind in pitch using A, has effectively ensured C
Igniting startup function of the coal pulverizer under cold conditions environment, the improvement that the utility model is made on the basis of existing equipment, change
Small, efficient, change is at low cost, good in economic efficiency.
Description of the drawings
Fig. 1 is the connection structure diagram of embodiment 1.
In figure：In 1-A coal pulverizers pitch, 2-B coal pulverizers pitch, 3-C coal pulverizers pitch, 4- First airs air supply duct, 5-
Between main pipeline, 6- steam air heaters, 7- control valves, 8- insertion plate doors.
Specific implementation mode
Embodiment 1.
A kind of igniting supply air system described in the utility model includes at least A coal pulverizers pitch 1, B coal pulverizers pitch 2, C mills
Coal machine pitch 3, First air air supply duct 4 and intermediate main pipeline 5, A coal pulverizers pitch 1, B coal pulverizers pitch 2, C coal pulverizers pitch 3
It is respectively connected between on main pipeline 5, and is arranged at the same side of intermediate main pipeline 5, First air air supply duct 4 is connected to
The other side of intermediate main pipeline 5, the intermediate main pipeline 5 is interior to be equipped with a steam air heater 6, and the steam air heater 6 is arranged in A coal pulverizer tune
Between door 1 and B coal pulverizers pitch 2, the air outlet of A coal pulverizers pitch 1 is connected to the outlet air of C coal pulverizers pitch 3 by shunt valve
At mouthful, the shunt valve is equipped with control valve 7.The output end of First air air supply duct 4 described in the utility model is arranged in B coal-grindings
Between machine pitch 2 and steam air heater 6.The present embodiment is equipped with insertion plate door 8 on the C coal pulverizers pitch 3, and shunt valve is connected to plate
Between the output end of door 8 and C coal pulverizers pitch 3.
In the specific use process, when will only light a fire to the air-supply of A coal pulverizers, the control valve 7 on shunt valve is closed, C is ground
Insertion plate door 8 on pitch is inserted into, and heat primary air enters intermediate main pipeline 5 by First air air supply duct 4, by being set to centre
Steam air heater 6 in main pipeline 5 heats, and is exported from A coal pulverizers pitch 1 after heating；
When needing to A coal pulverizers and the air-supply igniting of C coal pulverizers, then the control valve 7 on shunt valve is opened, C is ground into pitch
On insertion plate door 8 be inserted into, heat primary air by First air air supply duct 4 enter intermediate main pipeline 5, by being set to intermediate supervisor
Steam air heater 6 in road 5 heats, and is exported from A coal pulverizers pitch 1 after heating；Heat primary air is by shunt valve simultaneously, from C coal pulverizers
Pitch 3 exports.
Claims (3)
1. a kind of igniting supply air system includes at least A coal pulverizers pitch, B coal pulverizers pitch, C coal pulverizers pitch, First air air-supply
Pipeline and intermediate main pipeline, A coal pulverizers pitch, B coal pulverizers pitch, C coal pulverizer pitch are respectively connected between on main pipeline,
And it is arranged at the same side of intermediate main pipeline, First air air supply duct is connected between the other side of main pipeline, and feature exists
In being equipped with a steam air heater in the intermediate main pipeline, the steam air heater is arranged between A coal pulverizers pitch and B coal pulverizer pitch, A
The air outlet of coal pulverizer pitch is connected to by shunt valve at the air outlet of C coal pulverizer pitch, and the shunt valve is equipped with control
Valve.
2. a kind of igniting supply air system as described in claim 1, it is characterised in that the output end of the First air air supply duct is set
It sets between B coal pulverizers pitch and steam air heater.
3. a kind of igniting supply air system as claimed in claim 2, it is characterised in that the C coal pulverizers pitch is equipped with insertion plate door,
Shunt valve is connected between insertion plate door and the output end of C coal pulverizer pitch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721732491.4U CN207702517U (en) | 2017-12-13 | 2017-12-13 | A kind of igniting supply air system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721732491.4U CN207702517U (en) | 2017-12-13 | 2017-12-13 | A kind of igniting supply air system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207702517U true CN207702517U (en) | 2018-08-07 |
Family
ID=63026014
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721732491.4U Expired - Fee Related CN207702517U (en) | 2017-12-13 | 2017-12-13 | A kind of igniting supply air system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207702517U (en) |
-
2017
- 2017-12-13 CN CN201721732491.4U patent/CN207702517U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107855210B (en) | Energy-saving optimal control system and method for outlet temperature of medium-speed coal mill of supercritical unit | |
| CN203687076U (en) | Intermediate storage type hot primary air heat exchanging type returned pulverized coal milling and coal pulverizing system of coal fired boiler | |
| CN207805793U (en) | Supercritical unit medium-speed pulverizer outlet temperature optimal control for energy saving system | |
| CN109959023A (en) | It is a kind of using furnace cigarette as the unit pulverized-coal system of dried medium and method | |
| CN102840594B (en) | Fume dried lignite medium speed mill straight-blowing powder-making system | |
| CN103148496B (en) | A kind of system improving the ball type pulverizer system drying capacity when boiler changes coal | |
| CN203784991U (en) | Hot air recirculating system of coal-fired boiler | |
| CN201262408Y (en) | Hot primary air bypass apparatus of coal-burning boiler | |
| CN110287561A (en) | One kind stopping standby burner low-temperature flue gas cooling system and its Parameters design | |
| CN210638067U (en) | Stable combustion energy-saving efficiency-improving system for boiler of thermal power plant | |
| CN207702517U (en) | A kind of igniting supply air system | |
| CN202195494U (en) | Brown coal intermediate-speed milling and direct blowing coal pulverizing system for smoke drying | |
| CN204716317U (en) | The interactive start up system of a kind of generator set | |
| CN203848313U (en) | Positive pressure powder manufacturing system for drying brown coal through boiler interior heating primary air and cold smoke | |
| CN203099874U (en) | System for improving drying capacity of intermediate-storage type milling system during coal type changing of boiler | |
| CN206846704U (en) | A kind of coal burner cooling air system using boiler heat primary air | |
| CN106123003A (en) | A kind of Industrial Boiler charging gear | |
| CN102865588A (en) | Middle warehouse type powder making system with low temperature smoke as drying agent and nitrogen as isolation layer | |
| CN105423323B (en) | For the surface-type flue gas heat-exchange unit and its heat-exchange method of back-end ductwork | |
| CN115164226A (en) | Improve coal-fired unit operation flexibility and coal type adaptability's wind temperature governing system | |
| CN103438474A (en) | Partial-exhaust-gas-participated hot-air powder conveying comprehensive utilization system of boiler pulverizing system | |
| CN103836636A (en) | Device for reducing cold air doping rate of hot primary air | |
| CN211450991U (en) | Direct-blowing type two-medium drying pulverizing system for high-moisture lignite | |
| CN203454196U (en) | Efficiency improving device for heating primary boiler air by using coal gas | |
| CN203190438U (en) | Hot and cold flue gas drying intermediate-speed coal pulverizing system of brown coal |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180807 Termination date: 20181213 |