CN206021491U - A kind of air preheater incipient fire warning system based on graphical analysis - Google Patents
A kind of air preheater incipient fire warning system based on graphical analysis Download PDFInfo
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- CN206021491U CN206021491U CN201621027614.XU CN201621027614U CN206021491U CN 206021491 U CN206021491 U CN 206021491U CN 201621027614 U CN201621027614 U CN 201621027614U CN 206021491 U CN206021491 U CN 206021491U
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- Prior art keywords
- fire
- air preheater
- fighting water
- graphical analysis
- site control
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- 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.)
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- Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
Abstract
The utility model discloses a kind of air preheater incipient fire warning system based on graphical analysis, including fire-fighting water sprayer tube, on-site control, fire-fighting water supply system, and for gathering the camera of the image information of air preheater inner rotor face, the delivery port of fire-fighting water supply system is connected with the water inlet of fire-fighting water sprayer tube, fire-fighting water sprayer tube is provided with some shower nozzles, surface of each shower nozzle just to air preheater internal rotor, the output end of camera is connected with the input of on-site control, the output end of on-site control is connected with the control end of each shower nozzle, the system can realize the warning and preventing and treating of air preheater inner rotor face incipient fire, ensure air preheater safe and stable operation.
Description
Technical field
The utility model is related to a kind of air preheater incipient fire warning system, and in particular to a kind of sky based on graphical analysis
Pre- device incipient fire warning system.
Background technology
Air preheater is the important auxiliary equipment of station boiler, and Main Function is to reclaim to leave boiler carbonated drink endotherm section
Flue gas heat, heats combustion air, reduces exhaust gas temperature, improves boiler thermal output.Air preheater realizes the function group of gas-gas heat exchange
Part is rotor, and rotor is made up of multiple mode sector storehouses.Include thousands of corrugated platings, i.e. carbon in each mode sector storehouse
Steel thin slice.When these corrugated platings go to air preheater flue gas storehouse, (360 DEG C～370 DEG C of flue-gas temperature) absorbs heat, goes to air bin
Heat is discharged when (20 DEG C～30 DEG C of First air, Secondary Air temperature), it is achieved that the heat exchange between flue gas and air.
, in initial start stage or low load stage, the oil gun that can come into operation is combustion-supporting for station boiler, the feelings for occurring oily coal multifuel combustion in burner hearth
Condition.Now in stove, burning condition is poor, and a large amount of coal dusts and oil droplet are burnt completely and be just less easily entrained by entrance back-end ductwork,
And eventually arrive at air preheater.The thickly dotted corrugated plating of arranging in air preheater sector storehouse, the gap very little between plate, because
This larger oil droplet, coal dust are difficult to, through fan-shaped storehouse, just in corrugated cardboard sheet top adhesion and aggregation, gradually form with certain area
Fuel dirt.The ignition of the boiler initial stage, in flue gas contain substantial amounts of high temperature soot particle, these soot particles as kindling material, in a steady stream not
Disconnected strikes on fuel dirt, and will ignite dirt under certain condition, causes air preheater to catch fire.
Existing air preheater fire alarm installation, mostly by temperature in infrared temperature-test sensor monitoring flue gas storehouse, exceedes
Setting value is reported to the police.Due to occurring little fuel dirt burning in flue-gas temperature higher (360 DEG C～370 DEG C), air preheater, very
Difficulty causes the intensification in the vast space in flue gas storehouse, infrared temperature-test sensor to be difficult to find burning things which may cause a fire disaster, therefore cannot be to air preheater early stage fire
Calamity is implemented effectively to monitor, and this causes unit air preheater to face larger security risk in initial start stage.
Utility model content
The purpose of this utility model is the shortcoming for overcoming above-mentioned prior art, there is provided a kind of sky based on graphical analysis
Pre- device incipient fire warning system, the system can realize the warning and preventing and treating of air preheater inner rotor face incipient fire, it is ensured that
Air preheater safe and stable operation.
For reaching above-mentioned purpose, the air preheater incipient fire warning system bag based on graphical analysis described in the utility model
Include fire-fighting water sprayer tube, on-site control, fire-fighting water supply system and believe for gathering the image of air preheater inner rotor face
The camera of breath, the delivery port of fire-fighting water supply system are connected with the water inlet of fire-fighting water sprayer tube, on fire-fighting water sprayer tube
It is provided with some shower nozzles, surface of each shower nozzle just to air preheater internal rotor, the output end of camera and the input of on-site control
It is connected, the output end of on-site control is connected with the control end of each shower nozzle.
It is connected by electrically operated valve between the delivery port of fire-fighting water supply system and fire-fighting water sprayer tube, on-site control
It is connected with the control end of electrically operated valve.
Also include that Power Plant DCS System, Power Plant DCS System are connected with on-site control.
The camera is wide-angle camera.
It is connected by the communications cable between camera and on-site control.
On-site control is also associated with alarm.
The utility model has the advantages that：
Air preheater incipient fire warning system based on graphical analysis described in the utility model passes through in concrete operations
Camera gathers the image information of air preheater inner rotor face, and described image information is forwarded in on-site control, on the spot
Switch board can judge whether rotor surface occurs Ignition Phenomena by aberration identification, when the surface of rotor occurs Ignition Phenomena
When, on-site control control shower nozzle is opened, and is made fire water be ejected into the surface of rotor through shower nozzle, is put out the fire of rotor surface, real
The warning and preventing and treating of existing air preheater inner rotor face incipient fire, it is ensured that air preheater safe and stable operation, simple structure, operation side
Just, practicality is extremely strong.
Description of the drawings
Fig. 1 is structural representation of the present utility model；
Fig. 2 is the schematic diagram of the image information of the collection of camera 2 under normal circumstances；
Fig. 3 is the schematic diagram that 1 surface of rotor occurs the image information of the collection of camera 2 during Ignition Phenomena.
Wherein, 1 be rotor, 2 be camera, 3 be fire-fighting water sprayer tube, 4 be electrically operated valve, 5 be fire-fighting water supply system,
6 is Power Plant DCS System, 7 is on-site control.
Specific embodiment
Below in conjunction with the accompanying drawings the utility model is described in further detail：
With reference to Fig. 1, the air preheater incipient fire warning system based on graphical analysis described in the utility model includes fire-fighting
Water sprayer tube 3, on-site control 7, fire-fighting water supply system 5 and the image information for gathering 1 surface of air preheater internal rotor
Camera 2, the delivery port of fire-fighting water supply system 5 is connected with the water inlet of fire-fighting water sprayer tube 3, fire-fighting water sprayer tube 3
Some shower nozzles are provided with, surface of each shower nozzle just to air preheater internal rotor 1, the output end of camera 2 are defeated with on-site control 7
Enter end to be connected, the output end of on-site control 7 is connected with the control end of each shower nozzle.
It is connected by electrically operated valve 4 between the delivery port of fire-fighting water supply system 5 and fire-fighting water sprayer tube 3, is controlled on the spot
Cabinet processed 7 is connected with the control end of electrically operated valve 4；The utility model also includes Power Plant DCS System 6, Power Plant DCS System 6 with just
Ground switch board 7 is connected；Camera 2 is wide-angle camera；It is connected by the communications cable between camera 2 and on-site control 7
Connect；On-site control 7 is also associated with alarm.
Specific work process of the present utility model is：
Camera 2 presses the image information on 1 surface of rotor in flue gas storehouse in predeterminated frequency collection air preheater, and by air preheater
In flue gas storehouse, the image information on 1 surface of rotor is forwarded in on-site control 7, as flue gas storehouse has good sealing property,
Gauge without light source in flue gas storehouse, very dark in flue gas storehouse, when the surface of rotor 1 does not catch fire, the image for collecting such as Fig. 2 institutes
Show.
When the surface of rotor 1 catches fire, the image of the collection of camera 2 is as shown in figure 3, therefore 7 pairs of shootings of on-site control
The image informations of 2 collections carry out judging whether 1 surface of rotor catches fire by aberration is recognized, when 1 surface of rotor catches fire
When, then the area that rotor surface catches fire is calculated, when the area that rotor surface catches fire is more than or equal to preset value, on-site control 7
Control electrically operated valve 4 and shower nozzle open, the fire water in fire-fighting water supply system 5 through electrically operated valve 4, fire-fighting water sprayer tube 3 and
Shower nozzle is ejected into the surface of rotor 1, puts out early stage and catches fire, while on-site control 7 produces alarm signal, and by the alarm signal
Number it is forwarded in alarm and Power Plant DCS System 6, facilitates operations staff to grasp air preheater operation security situation in time；When rotor 1
When surface does not catch fire or fire has been extinguished, on-site control 7 closes electrically operated valve 4 and shower nozzle.In addition, it is necessary to illustrate
, the utility model can with the position according to ignition point by control shower nozzle carry out accurate sprinkling fire.
Claims (6)
1. a kind of air preheater incipient fire warning system based on graphical analysis, it is characterised in that including fire-fighting water sprayer tube
(3), on-site control (7), fire-fighting water supply system (5) and the image information for gathering air preheater internal rotor (1) surface
Camera (2), the delivery port of fire-fighting water supply system (5) is connected with the water inlet of fire-fighting water sprayer tube (3), and fire water is sprayed
Shower pipe (3) is provided with some shower nozzles, surface of each shower nozzle just to air preheater internal rotor (1), the output end of camera (2) with the spot
The input of switch board (7) is connected, and the output end of on-site control (7) is connected with the control end of each shower nozzle.
2. the air preheater incipient fire warning system based on graphical analysis according to claim 1, it is characterised in that fire-fighting
It is connected by electrically operated valve (4) between the delivery port of water supply system (5) and fire-fighting water sprayer tube (3), on-site control (7)
It is connected with the control end of electrically operated valve (4).
3. the air preheater incipient fire warning system based on graphical analysis according to claim 1, it is characterised in that also wrap
Power Plant DCS System (6) is included, Power Plant DCS System (6) is connected with on-site control (7).
4. the air preheater incipient fire warning system based on graphical analysis according to claim 1, it is characterised in that described
Camera (2) is wide-angle camera.
5. the air preheater incipient fire warning system based on graphical analysis according to claim 1, it is characterised in that shooting
It is connected by the communications cable between head (2) and on-site control (7).
6. the air preheater incipient fire warning system based on graphical analysis according to claim 1, it is characterised in that on the spot
Switch board (7) is also associated with alarm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621027614.XU CN206021491U (en) | 2016-08-31 | 2016-08-31 | A kind of air preheater incipient fire warning system based on graphical analysis |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621027614.XU CN206021491U (en) | 2016-08-31 | 2016-08-31 | A kind of air preheater incipient fire warning system based on graphical analysis |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206021491U true CN206021491U (en) | 2017-03-15 |
Family
ID=58258177
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621027614.XU Expired - Fee Related CN206021491U (en) | 2016-08-31 | 2016-08-31 | A kind of air preheater incipient fire warning system based on graphical analysis |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206021491U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106251565A (en) * | 2016-08-31 | 2016-12-21 | 西安热工研究院有限公司 | A kind of air preheater incipient fire warning system based on graphical analysis |
| CN107152690A (en) * | 2017-05-17 | 2017-09-12 | 北京京城环保股份有限公司 | A kind of dangerous waste incinerator feeding steam annihilator and steam smoothering method |
-
2016
- 2016-08-31 CN CN201621027614.XU patent/CN206021491U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106251565A (en) * | 2016-08-31 | 2016-12-21 | 西安热工研究院有限公司 | A kind of air preheater incipient fire warning system based on graphical analysis |
| CN107152690A (en) * | 2017-05-17 | 2017-09-12 | 北京京城环保股份有限公司 | A kind of dangerous waste incinerator feeding steam annihilator and steam smoothering method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| 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: 20170315 Termination date: 20180831 |