CN206600829U - A kind of rotary regenerative air preheater superficial dust on-line monitoring system - Google Patents
A kind of rotary regenerative air preheater superficial dust on-line monitoring system Download PDFInfo
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- CN206600829U CN206600829U CN201720227681.4U CN201720227681U CN206600829U CN 206600829 U CN206600829 U CN 206600829U CN 201720227681 U CN201720227681 U CN 201720227681U CN 206600829 U CN206600829 U CN 206600829U
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- China
- Prior art keywords
- air preheater
- dust stratification
- monitoring system
- dust
- line monitoring
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- 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
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- Chimneys And Flues (AREA)
Abstract
The utility model discloses a kind of rotary regenerative air preheater superficial dust on-line monitoring system, including Power Plant DCS data acquisition device, dust stratification on-Line Monitor Device and steam soot-blower.The data input that this dust stratification on-line monitoring system is monitored Power Plant DCS System is into dust stratification on-Line Monitor Device, some parameters for obtaining characterizing dust stratification degree are further calculated using corresponding processing routine, then by these parameter feedbacks to steam soot blowing automaton, to realize the real-time removing to air preheater dust stratification.With at present remove air preheater dust stratification conventional method compared with, this on-line monitoring system is intuitively reflected the running status of air preheater using visual display mode, at the same be also avoided that steam soot blowing overfrequency or not in time the problem of.The utility model to instructing power plant operations staff to be operated, improved the performance of air preheater, improve boiler efficiency and realize that energy saving for power plants suffers from highly important meaning.
Description
Technical field
The utility model belongs to the dust stratification Prevention Technique field of coal fired power plant air preheater, more particularly to a kind of swinging
Air preheater surfaces dust stratification on-line monitoring system.
Background technology
Rotary regenerative air preheater is located at boiler back end ductwork, is that coal-fired power station boiler working environment is more severe heated
Face.Escape ammonia and SO in SCR denitration device3Carried by flue gas to the air preheater in downstream, and in air preheater surfaces
Ammonium hydrogen sulfate is generated, ammonium hydrogen sulfate is a kind of viscosity very strong material, and flying dust can be adhered in flue gas, causes air preheater to accumulate
Ash is blocked so that the resistance of air preheater becomes big, heat exchange efficiency reduction, has a strong impact on the economy of station boiler.
In the DCS system of power plant, for air preheater there is provided many monitoring parameters, such as import and export wind-warm syndrome, turnover
Mouth gentle pressure difference of cigarette etc., but these parameters are all independent parameter, in DCS system these parameters are organic
It is combined together, the dust stratification situation for diagnosing air preheater.The operations staff of power plant is also simply according to some simple prisons
Parameter is surveyed by operating experience to judge the dust stratification degree of air preheater, the result limitation of diagnosis is larger.Therefore, by air
Each monitoring parameter of preheater is combined together, by calculating and analysis program, using visual mode air preheat
The running status and dust stratification degree of device are intuitively reflected, and are an urgent demands of Power Plant operations staff.Work as air preheat
After device dust stratification is blocked, the soot blowing operation of most of power plant's rotary regenerative air preheaters is using programme-control side at regular time and quantity
Formula, is likely to result in soot blowing overfrequency or not in time.Excessively frequent or unnecessary input purging, can not only waste sootblowing dielectric and increasing
Plus operating cost, and also add loss and the maintenance cost of soot blower；And if soot blowing not in time, will result in air
Preheater dust stratification is blocked, and greatly reduction boiler output is even stopped transport.
Monitored according to the running status of air preheater and real-time performance, the flow of adjust automatically steam soot blowing, Ke Yiyou
The performance of the raising air preheater of effect and life-span, the dust stratification of slow down air preheater is blocked, while being also avoided that soot blowing overfrequency
Or phenomenon not in time.Therefore, rotary regenerative air preheater superficial dust on-line monitoring system is to instructing power plant operations staff to enter
Row operates, improves the performance of air preheater, improves boiler efficiency and realize that energy saving for power plants suffers from highly important meaning
Justice.
The content of the invention
The purpose of this utility model is that providing one kind can be shown dust stratification degree and real-time performance in visual mode
Show to come, and the swinging air of the result progress high steam automatic ash blowing operation monitored according to on-Line Monitor Device is pre-
Hot device superficial dust on-line monitoring system.
To reach above-mentioned purpose, the utility model adopts the following technical scheme that to realize：Including what is be connected with burner hearth
The boiler back end ductwork of air preheater is internally provided with, and is that boiler back end ductwork entrance enters to be provided with the outlet of burner hearth
Hot device, described air preheater is connected with DCS data acquisition devices, and the defeated end of DCS data acquisition devices and dust stratification are online
Monitoring device is connected, and the output end of dust stratification on-Line Monitor Device is connected with the input of steam soot blowing automaton, steam
The import of soot blowing automaton is connected with superheater, exports and is connected with air preheater.
The output end of described dust stratification on-Line Monitor Device is also connected with the input of visualization device.
When boiler is normally run, flue gas flows through boiler back end ductwork, starts DCS data acquisition devices pre- to monitor air
The operational factor of hot device, while starting dust stratification on-Line Monitor Device and visualization device, the fortune that DCS data acquisition devices are monitored
In row parameter input dust stratification on-Line Monitor Device, result is inputted into steam soot blowing automaton and visual after being calculated through program
Makeup is put, and steam soot blowing automaton is by the flow of real-time adjustment high steam to realize to air preheater surfaces dust stratification
Purging.
Further, operations staff can diagnose the dust stratification of air preheater surfaces according to the display result of visualization device
Degree.
Compared to prior art, the utility model has the following advantages：
The data input that the utility model is monitored Power Plant DCS System obtains characterizing product into on-Line Monitor Device
Some parameters of grey degree, then feed back to steam soot blowing automaton, with reality by the result of calculation of on-Line Monitor Device
Now to the real-time removing of air preheater dust stratification.Compared with removing the conventional method of air preheater dust stratification at present, line prison is changed into
Examining system is intuitively reflected the running status of air preheater using visual display mode, while also can be according to product
Grey degree adjust automatically steam flow with avoid steam soot blowing overfrequency or not in time the problem of.Generally, the utility model pair
Power plant operations staff is instructed to be operated, improved the performance of air preheater, improve boiler efficiency and realize energy saving for power plants
Suffer from highly important meaning.
The related Monitoring Data of DCS data acquisition devices of the present utility model is handled via on-Line Monitor Device calculating, is obtained
To the parameter (dust stratification thickness and contamination factor) for characterizing dust stratification degree.
The resulting parameter for characterizing dust stratification degree of on-Line Monitor Device program calculating processing is carried out in visualization device can
Depending on change processing, operations staff can monitor the dust stratification situation of rotary regenerative air preheater in real time.
The on-Line Monitor Device connects the superheater at the top of boiler via steam soot blowing automaton, and it can root
According to the amount of being blown into of the real-time adjust automatically high steam of the dust stratification situation of rotary regenerative air preheater.
Brief description of the drawings
Fig. 1 is structure principle chart of the present utility model.
Wherein：1 is burner hearth, and 2 be superheater, and 3 be air preheater, and 4 be steam soot blowing automaton, and 5 be DCS numbers
According to harvester, 6 dust stratification on-Line Monitor Devices, 7 be visualization device.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
As shown in figure 1, the utility model includes the boiler tail for being internally provided with air preheater 3 being connected with burner hearth 1
Portion's flue, and be that boiler back end ductwork entrance enters to be provided with superheater 2 in the outlet of burner hearth 1, described air preheater 3 with
DCS data acquisition devices 5 are connected, and the defeated end of DCS data acquisition devices 5 is connected with dust stratification on-Line Monitor Device 6, and dust stratification is online
Input of the output end of monitoring device 6 respectively with steam soot blowing automaton 4 and visualization device 7 is connected, and steam blows
The import of grey automaton 4 is connected with superheater 2, exports and is connected with air preheater 3.
When boiler is normally run, flue gas flows through boiler back end ductwork, starts the monitoring air of DCS data acquisition devices 5 pre-
The operational factor of hot device 3, while starting dust stratification on-Line Monitor Device 6 and visualization device 7, DCS data acquisition devices 5 are monitored
Operational factor input dust stratification on-Line Monitor Device 6 in, result is inputted into steam soot blowing automaton 4 after being computed and can
7 are put depending on makeup, and steam soot blowing automaton 4 is by the flow of real-time adjustment high steam to realize to air preheater surfaces
The purging of dust stratification.
Claims (2)
1. a kind of rotary regenerative air preheater superficial dust on-line monitoring system, including the inside being connected with burner hearth (1) are set
There is the boiler back end ductwork of air preheater (3), and be that boiler back end ductwork entrance enters to be provided with overheat in the outlet of burner hearth (1)
Device (2), it is characterised in that：Described air preheater (3) is connected with DCS data acquisition devices (5), DCS data acquisition devices
(5) defeated end is connected with dust stratification on-Line Monitor Device (6), the output end of dust stratification on-Line Monitor Device (6) and steam soot blowing from
The input of dynamic control device (4) is connected, the import of steam soot blowing automaton (4) is connected with superheater (2), export and
Air preheater (3) is connected.
2. rotary regenerative air preheater superficial dust on-line monitoring system according to claim 1, it is characterised in that：It is described
Input of the output end also with visualization device (7) of dust stratification on-Line Monitor Device (6) be connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720227681.4U CN206600829U (en) | 2017-03-09 | 2017-03-09 | A kind of rotary regenerative air preheater superficial dust on-line monitoring system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720227681.4U CN206600829U (en) | 2017-03-09 | 2017-03-09 | A kind of rotary regenerative air preheater superficial dust on-line monitoring system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206600829U true CN206600829U (en) | 2017-10-31 |
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ID=60148124
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720227681.4U Expired - Fee Related CN206600829U (en) | 2017-03-09 | 2017-03-09 | A kind of rotary regenerative air preheater superficial dust on-line monitoring system |
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| CN (1) | CN206600829U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109351178A (en) * | 2018-11-09 | 2019-02-19 | 华为三立(北京)能源科技有限公司 | Thermal power station's air preheater anti-blocking control method and system and thermal power station's air preheater system |
| CN109442469A (en) * | 2018-11-06 | 2019-03-08 | 国网江西省电力有限公司电力科学研究院 | A kind of thermal power plant's air preheater visualization status monitoring device and method |
| CN109622510A (en) * | 2018-12-26 | 2019-04-16 | 北京国电龙源环保工程有限公司 | The on-line monitoring system and monitoring method of SCR catalyst surface area ash situation |
| CN112648635A (en) * | 2020-11-06 | 2021-04-13 | 苏州西热节能环保技术有限公司 | Steam soot blowing optimization guidance method for boiler air preheater |
-
2017
- 2017-03-09 CN CN201720227681.4U patent/CN206600829U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109442469A (en) * | 2018-11-06 | 2019-03-08 | 国网江西省电力有限公司电力科学研究院 | A kind of thermal power plant's air preheater visualization status monitoring device and method |
| CN109442469B (en) * | 2018-11-06 | 2023-12-29 | 国网江西省电力有限公司电力科学研究院 | Visual state monitoring device and method for air preheater of thermal power plant |
| CN109351178A (en) * | 2018-11-09 | 2019-02-19 | 华为三立(北京)能源科技有限公司 | Thermal power station's air preheater anti-blocking control method and system and thermal power station's air preheater system |
| CN109351178B (en) * | 2018-11-09 | 2021-06-25 | 华创三立(北京)能源科技有限公司 | Anti-blocking control method and system for thermal power station air pre-heater and thermal power station air pre-heater system |
| CN109622510A (en) * | 2018-12-26 | 2019-04-16 | 北京国电龙源环保工程有限公司 | The on-line monitoring system and monitoring method of SCR catalyst surface area ash situation |
| CN112648635A (en) * | 2020-11-06 | 2021-04-13 | 苏州西热节能环保技术有限公司 | Steam soot blowing optimization guidance method for boiler air preheater |
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| Date | Code | Title | Description |
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| 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: 20171031 Termination date: 20190309 |