CN202692121U - Visual monitoring system in boiler hearth of power station - Google Patents
Visual monitoring system in boiler hearth of power station Download PDFInfo
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- CN202692121U CN202692121U CN 201220328159 CN201220328159U CN202692121U CN 202692121 U CN202692121 U CN 202692121U CN 201220328159 CN201220328159 CN 201220328159 CN 201220328159 U CN201220328159 U CN 201220328159U CN 202692121 U CN202692121 U CN 202692121U
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Abstract
The utility model relates to a monitoring system, in particular to a visual monitoring system in a boiler hearth of a power station. The monitoring system comprises 2 to 20 flame image detectors, wherein the flame image detectors are connected with a monitor and an industrial personal computer A applied to combustion monitoring visualization respectively through a video separator; the industrial personal computer A is connected with an industrial personal computer B applied to data acquisition and control through a network cable; and two flame image detectors are arranged on each layer of boiler hearth and on the two opposite walls in the boiler hearth. The monitoring system improves the boiler efficiency, realizes optimal control of wind coal proportion, improves combustion, adjusts the quality, stabilizes combustion, improves the parameter quality of boiler outlet steam, reduces the production cost, reduces the fuel quantity, reduces energy consumption, reduces pipeline wear and reduces the maintenance quantity.
Description
Technical field
The utility model relates to a kind of visualizing monitor system, specifically, relates to visualizing monitor system in a kind of furnace of power-plant boilers.
Background technology
Combustion case in the boiler of electricity power enterprise is complicated, needs plurality of devices to participate in regulating.In recent years thermal power plant come that coal is numerous in variety, ature of coal changes greatly, adopt Blended Coal Combustion more prevalent.Yet the mixed ratio of Coal rank can not be guaranteed constantly, and the variation of coal is also so that enter the combustion characteristics of the fuel of burner hearth and may change at any time.When causing entering the unexpected variation of coal of burner hearth owing to a variety of causes, combustion process may because catching fire to worsen cause stable rapid decline, as can not in time being adjusted by monitoring, just may be put out a fire even the burner hearth security incident.Even combustion failure do not occur, the changeable meeting of coal causes the stove combustion process to optimize and revise timely and effectively, such as adjusting at any time flue gas oxygen content, to guarantee efficient burning.And the prerequisite that effective burning optimization is adjusted is effective combustion visualization monitoring technology.In actual moving process, fired power generating unit is in default of the real time monitoring to the combustion conditions of burner hearth middle and upper part and furnace outlet, the optimization of its coal-air ratio and pollutant emission suppress not take into full account burning and radiant heat transfer process, cause the further improvement of unit operation economy to be restricted.
Present stage, electricity power enterprise lacks the online study method of the economy adjustment that becomes coal.The combustion characteristics of mixed coal is more complicated than single coal, and its combustion position in stove there is no the method Real-Time Monitoring at present, also can't provide the Blended Coal Combustion economy adjustment that becomes in the coal situation and instruct, and the raising of fired power generating unit security, economy is restricted.Simultaneously, the burning real time monitoring of furnace outlet representative region is still immature.When occurring departing from the optimization operating mode in the combustion process of boiler furnace outlet certain area, rely on existing combustion monitoring technology, can not effectively identify, can't take corresponding burning adjustment and control measure to be overcome, easily cause top water-cooling wall coking, booster, superheater dust stratification and overtemperature etc. reduce operation troubles and the accident of economy.
The electricity power enterprise of present stage, the online burning adjustment optimization of not yet introducing radiant energy signal moves control technology.Because fuel change at first causes the variation of radiant energy, regulating system can effectively be utilized the leading performance of radiant energy.In the conventional control system, do not take into full account the primary stage of the power conversion of combustion process heat release, existing boiler combustion control strategy does not also have effective way directly combustion process to be optimized, and the raising of heat-economy is restricted, and pollutant emission can't suppress from quantification.
For this reason, the utility model proposes visualizing monitor system in a kind of furnace of power-plant boilers, solved the ubiquitous technical barrier of generation current enterprise.
The utility model content
Goal of the invention of the present utility model is to propose visualizing monitor system in a kind of furnace of power-plant boilers.
In order to finish the purpose of this utility model, the technical scheme of employing is:
The utility model relates to visualizing monitor system in a kind of furnace of power-plant boilers, comprise 2～20 flame image detectors 1, described flame image detector by video separator 2 respectively with monitor 3, be used for the visual industrial computer A 4 of combustion monitoring and be connected, industrial computer A is connected by netting twine 6 with industrial computer B 5 for data collection and control.
The first optimal technical scheme of the present utility model is that every layer of boiler furnace installed 2 flame image detectors, is installed on the front-back wall in the boiler furnace.
The second optimal technical scheme of the present utility model is, the setting angle of the camera lens of described flame image detector 1 for horizontal alignment under become 15～45 °.
The 3rd optimal technical scheme of the present utility model is, the setting angle of the camera lens of described flame image detector 1 for horizontal alignment under become 15～35 °.
The 4th optimal technical scheme of the present utility model is, the angular field of view of the camera lens of described flame image detector 1 be each 50 °～65 ° up and down, about each conical region of 65 °～80 °.
The 5th optimal technical scheme of the present utility model is, the angular field of view of the camera lens of described flame image detector 1 be each 55 °～60 ° up and down, about each conical region of 62 °～78 °.
The 6th optimal technical scheme of the present utility model is that described industrial computer A, industrial computer B are connected with dcs respectively.
The 7th optimal technical scheme of the present utility model is that described video separator adopts hardwire to connect with being connected of monitor, industrial computer A.
The below makes further explanation content of the present utility model:
This is novel proposed a kind of based on visualizing monitor system in the furnace of power-plant boilers of colored CCD radiation image information processing.The structural representation of native system mainly is comprised of the real-time monitoring of computer system take high performance industrial control computer as core as shown in Figure 1.
System of the present invention obtains the combustion information of Power Plant Furnace Flame by the camera lens of a plurality of flame image detectors, through video separator vision signal is gathered, is shown in monitor; Simultaneously video separator with video signal transmission in industrial computer A, industrial computer A is used for the combustion monitoring visualization processing, be that Computer Image Processing and relevant monitoring algorithm carry out computing, and calculate in real time temperature pattern and the blackness image of furnace flame, and the part of related data is reached DCS by hardwire; Then the signal that processing is obtained is sent to industrial computer B, and industrial computer B is used for gathering the unit operational factor, and the part of related data is reached DCS by hardwire.
In a preferred version of the present utility model, 8 flame image detectors and two high-performance industrial control computers are set.The hearth combustion space that monitors is the combustion zone, design arrangement multilayer flame image detector.The flame image detector divides 4 layers to be arranged in the burner hearth front-back wall, installs 2 for every layer, and camera lens is obliquely to overlook burner hearth down, its angular field of view be 60 ° up and down, about respectively pyramid of 78 ° is regional.8 flame image detectors are surveyed burner hearth from different the Layer Viewpoints, 8 width of cloth Fire Radiation pictures that obtain are through the synthetic piece image of video separator, enter in the image pick-up card of industrial computer A, synthetic flame image is processed in industrial computer A, calculates in real time the furnace flame temperature according to software.Industrial computer A is used for calculating and the demonstration of acquisition process, temperature pattern and the blackness image of settling signal, industrial computer B is mainly used in the tutorial message of furnace flame burning control, two computers are interrelated, can pass through mutually the ICP/IP protocol transfer data information.
Boiler of power plant operation monitoring environment has physical space and distributes extensively, and electromagnetic interference is strong, and operation supervise and control requires the characteristics such as relatively concentrated, and the signal transmission in the native system realizes collection and the transmission of signal take hardwire as the basis by I/O data processing integrated circuit board.
The temperature information that native system obtains passes to industrial computer B by industrial computer A by TCP/IP, with above-mentioned data and radiant energy signal etc., process integrated circuit board with the I/O data and send in the unit DCS system, the logic in change control loop in the DCS system realizes the control of associated loop.
Technical advantage of the present utility model is:
This novel system adopts the flame image detector from burner hearth middle and upper part certain altitude, obtain combustion flame radiation image information, utilize radiation image Computer Processing technology, radiant heat transfer is theoretical, advanced solution strategies, real-time implementation is to the ignition temperature field of burner hearth middle and upper part to furnace outlet, radiant heat flux, volume heat load and the equidistributed visual monitor of section thermic load, monitoring by native system, and with the comparative studies of furnace outlet district representative temperature measuring point, can help to implement fast, diagnosing combustion work condition abnormality phenomenon effectively, instruct burning to adjust and control, reduce operation troubles and accident that boiler combustion brings unusually, improve security and the economy of boiler operatiopn.
This novel system can improve boiler efficiency, realizes the optimal control of wind coal proportion, improves burning and adjusts quality, and smooth combustion improves boiler export steam parameter quality.
This novel system can reduce production costs, and reduces fuel quantity, reduces power consumption, reduces pipe wear, reduces the maintenance amount.
This novel system can also improve security, reduces the discharging of nitrogen oxide, flying dust, improves the condition of work of water-cooling wall, reduces the non-number of times that stops.
Description of drawings:
Fig. 1 is the structural representation of embodiment 1 system.
The specific embodiment of the present utility model only makes further explanation the utility model, not to this novel Composition of contents restriction.
The specific embodiment
Embodiment 1
Visualizing monitor system in a kind of furnace of power-plant boilers arranges 8 flame image detectors 1, is used for the industrial computer B 5 of the visual industrial computer A 4 of combustion monitoring and data collection and control.The hearth combustion space that monitors is the combustion zone, design arrangement multilayer flame image detector 1.The flame image detector divides 4 layers to be arranged in the burner hearth front-back wall, installs 2 for every layer, the setting angle of camera lens be with horizontal alignment under becomes 15 °, its angular field of view be about 60 °, about respectively pyramid of 78 ° is regional.8 flame image detectors are surveyed burner hearth from different the Layer Viewpoints, 8 width of cloth Fire Radiation pictures that obtain are through video separator 2 synthetic piece images, respectively with monitor 3, be used for the visual industrial computer A 4 of combustion monitoring and be connected, enter in the image pick-up card of industrial computer A, synthetic flame image is processed in industrial computer A, calculates in real time the furnace flame temperature according to software.Industrial computer A is used for calculating and the demonstration of acquisition process, temperature pattern and the blackness image of settling signal, industrial computer B is mainly used in the tutorial message of furnace flame burning control, two computers are interrelated, can pass through mutually the ICP/IP protocol transfer data information.Industrial computer A, industrial computer B are connected with dcs respectively.
Claims (8)
1. visualizing monitor system in the furnace of power-plant boilers, it is characterized in that, described monitoring system comprises 2～20 flame image detectors (1), described flame image detector by video separator (2) respectively with monitor (3), be used for the visual industrial computer A of combustion monitoring (4) and be connected, industrial computer A is connected by netting twine (6) with industrial computer B (5) for data collection and control.
2. ask visualizing monitor system in the 1 described furnace of power-plant boilers according to right, it is characterized in that, every layer of boiler furnace installed 2 flame image detectors (1), is installed on the two relative face walls in the boiler furnace.
3. ask visualizing monitor system in the 2 described furnace of power-plant boilers according to right, it is characterized in that, the setting angle of the camera lens of described flame image detector (1) for horizontal alignment under become 15～45 °.
4. ask visualizing monitor system in the 3 described furnace of power-plant boilers according to right, it is characterized in that, the setting angle of the camera lens of described flame image detector (1) for horizontal alignment under become 15～35 °.
5. ask visualizing monitor system in 2 or 3 arbitrary described furnace of power-plant boilers according to right, it is characterized in that, the angular field of view of the camera lens of described flame image detector (1) be each 50 °～65 ° up and down, about each conical region of 65 °～80 °.
6. ask visualizing monitor system in the 5 described furnace of power-plant boilers according to right, it is characterized in that, the angular field of view of the camera lens of described flame image detector (1) be each 55 °～60 ° up and down, about each conical region of 62 °～78 °.
7. ask visualizing monitor system in the 1 described furnace of power-plant boilers according to right, it is characterized in that, described industrial computer A, industrial computer B are connected with dcs respectively.
8. ask visualizing monitor system in the 1 described furnace of power-plant boilers according to right, it is characterized in that, described video separator adopts hardwire to connect with being connected of monitor, industrial computer A.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220328159 CN202692121U (en) | 2012-07-09 | 2012-07-09 | Visual monitoring system in boiler hearth of power station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220328159 CN202692121U (en) | 2012-07-09 | 2012-07-09 | Visual monitoring system in boiler hearth of power station |
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| Publication Number | Publication Date |
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| CN202692121U true CN202692121U (en) | 2013-01-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201220328159 Expired - Fee Related CN202692121U (en) | 2012-07-09 | 2012-07-09 | Visual monitoring system in boiler hearth of power station |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104676632A (en) * | 2015-02-04 | 2015-06-03 | 徐州工程学院 | Routing inspection device with curved surface scanning function |
| CN107270322A (en) * | 2017-05-11 | 2017-10-20 | 厦门诺银科技有限公司 | A kind of heating furnace flame monitors intelligent video monitoring system in real time |
-
2012
- 2012-07-09 CN CN 201220328159 patent/CN202692121U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104676632A (en) * | 2015-02-04 | 2015-06-03 | 徐州工程学院 | Routing inspection device with curved surface scanning function |
| CN107270322A (en) * | 2017-05-11 | 2017-10-20 | 厦门诺银科技有限公司 | A kind of heating furnace flame monitors intelligent video monitoring system in real time |
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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 |
Granted publication date: 20130123 Termination date: 20150709 |
|
| EXPY | Termination of patent right or utility model |