CN108438910A - One kind being used for economizer ash-transmission system anti-blocking monitoring system online - Google Patents
One kind being used for economizer ash-transmission system anti-blocking monitoring system online Download PDFInfo
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- CN108438910A CN108438910A CN201810274601.XA CN201810274601A CN108438910A CN 108438910 A CN108438910 A CN 108438910A CN 201810274601 A CN201810274601 A CN 201810274601A CN 108438910 A CN108438910 A CN 108438910A
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- Prior art keywords
- ash
- storehouse
- temperature
- transmission system
- grey
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G53/00—Conveying materials in bulk through troughs, pipes or tubes by floating the materials or by flow of gas, liquid or foam
- B65G53/04—Conveying materials in bulk pneumatically through pipes or tubes; Air slides
- B65G53/16—Gas pressure systems operating with fluidisation of the materials
- B65G53/18—Gas pressure systems operating with fluidisation of the materials through a porous wall
- B65G53/22—Gas pressure systems operating with fluidisation of the materials through a porous wall the systems comprising a reservoir, e.g. a bunker
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G53/00—Conveying materials in bulk through troughs, pipes or tubes by floating the materials or by flow of gas, liquid or foam
- B65G53/34—Details
- B65G53/66—Use of indicator or control devices, e.g. for controlling gas pressure, for controlling proportions of material and gas, for indicating or preventing jamming of material
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Incineration Of Waste (AREA)
Abstract
The invention discloses one kind being used for economizer ash-transmission system anti-blocking monitoring system online, includes pneumatic pipe in the ash-transmission system（Valve）, ash conveying pipe, pumped equipped with storehouse by pipeline on ash conveying pipe, storehouse pump is connected with automatic discharging valve, is connected with expansion joint on automatic discharging valve, and economizer hopper is connected with by manual discharge valve on expansion joint；The temperature of grey temperature measures thermal resistance in the pump of storehouse pump shoulder position installation measurement storehouse, the temperature for measuring ash is included in unit DCS control systems by DCS system connection signal cable and DCS fasteners, carry out relevant Logical Configuration, it is sent to monitoring computer CRT pictures, the temperature change of ash is monitored for operations staff, and then storehouse pump charging and conveying situation are judged by the temperature changing trend of ash, when temperature anomaly changes, show that storehouse pump material disengaging is uneven, stifled grey situation occurs, prompt operations staff's inspection on the scene, improve the accuracy that stifled ash judges, shorten the repair time, reduce environmental pollution when maintenance and maintenance.
Description
Technical field
It is specifically a kind of to be used for economizer ash-transmission system anti-blocking prison online the present invention relates to the economizer of thermal power generation station-service
Viewing system.
Background technology
The monitoring of thermal power plant uses at present economizer pneumatic ash transmitting system as shown in Figure 1, be by economizer hopper 1,
Manual discharge valve 2, expansion joint 3, automatic discharging valve 4, storehouse pump 5, pneumatic pipe（Valve）9, ash conveying pipe 10, pressure transmitter 11 and
Press-in connection signal cable 12, DCS accesses fastener 13, monitoring computer 14 needed for DCS system form.Boiler flue flue gas passes through
Change flow of flue gas direction when crossing economizer hopper 1, bulky grain flying dust falls into economizer hopper 1 by centrifugal force, collection it is big
Particle flying dust after each storehouse pump 5 falls ash successively, is uniformly delivered to grey library under the control of defeated ash handing system.
The reason of stifled ash of ash-transmission system or stifled ash cannot be found in time.
1. since coal varitation or personnel adjust the factors such as improper, it will flue coking dust stratification is caused, in order to ensure tail portion
Flue duct cleans, and increases heat-transfer effect, improves boiler efficiency, carries out soot blowing to flue by irregular, this causes in flying dust
It containing larger char particle, coke button or foreign matter, collects in economizer hopper, larger char particle, coke button or foreign matter enter defeated ash cellar
Pump unit, ash conveying pipe are easily caused and are blocked in storehouse pump bottom or ash pipeline.
2. since economizer ash-transmission system is usually multiple defeated ash cellar pump unit compositions, when any one defeated ash cellar pump unit
When defeated ash blocks up ash, pressure monitoring system cannot find specifically to block up ash cellar pump unit, if patrol officer cannot have found in time, cause
The a large amount of dust stratifications of ash bucket of this unit, influence the safety of ash bucket.
3. economizer ash conveying pipe pressure-measuring-point exception or plant failure cause measurement instruction inaccurate, operations staff can not
Judge defeated grey operating mode, cannot the processing of discovery in time, cause ash conveying pipe system jams.
Stifled ash, which occurs, for ash-transmission system to find in time, influence the reliability of ash-transmission system, increase repair and maintenance amount；
Increase the abrasion of upstream device；And increase the risk that economizer hopper caves in.
Invention content
It is an object of the invention to overcome the shortcomings of existing surveillance technology system, provide a kind of for economizer ash-transmission system
Online anti-blocking monitoring system.
Thus the technical scheme is that：One kind being used for economizer ash-transmission system anti-blocking monitoring system online, province's coal
Device ash-transmission system includes ash-transmission system, includes pneumatic pipe in ash-transmission system（Valve）, ash conveying pipe, pass through pipe on ash conveying pipe
Road is pumped equipped with storehouse, and storehouse pump is connected with automatic discharging valve, and expansion joint is connected on automatic discharging valve, passes through manual discharging on expansion joint
Valve is connected with economizer hopper, it is characterised in that：Economizer ash-transmission system is additionally provided with monitoring system, and monitoring system includes that temperature is surveyed
Calorimetric resistance and pressure measurement transmitter install the thermometric thermal resistance for measuring grey temperature in the pump of storehouse additional in each storehouse pump；
Ash conveying pipe is equipped with pressure measurement transmitter；Temperature measures thermal resistance and pressure measurement transmitter passes through needed for DCS system
Connection signal cable, DCS accesses fastener, access unit DCS control systems, carry out relevant Logical Configuration, monitoring a period of time
Interior temperature data situation of change, grey measuring temperature data and ash conveying pipe pressure measurement data pass to monitoring meter during storehouse is pumped
Calculation machine CRT pictures monitor；Real-time measuring temperature data persistently reduce or measure in real time pressure data presentation and do not advise in certain time
Rule variation, monitoring computer can send out stifled grey alarm signal；Grey real-time measuring temperature curve and defeated ash are female in being pumped again by storehouse
Pipe pressure plots changes comprehensive analysis, so that it may the stifled grey fault point of accurate judgement.
Further improve is：It is installed at storehouse in the thermometric thermal resistance and pumps shoulder position.
Advantageous effect：
The present invention installs the thermometric thermal resistance for measuring grey temperature in the pump of storehouse additional in each storehouse pump shoulder position.Grey temperature in the pump of storehouse
Degree is measured by measuring thermal resistance, and defeated ash main-piping pressure is accessed by pressure transmitter measurement by connection signal cable and DCS
Fastener accesses unit DCS control systems, carries out relevant Logical Configuration, the temperature data variation in monitoring a period of time, defeated ash
Pipeline pressure situation of change is measured by monitoring CRT picture displays temperatures value, the pressure value of computer in certain time in real time
Temperature data persistently reduces or measures in real time pressure data and irregular variation is presented, and monitoring computer can send out stifled grey alarm signal
Number；And grey temperature data, defeated grey main-piping pressure data make temperature in the storehouse of teletransmission being pumped on monitoring computer CRT pictures
Data variation and pressure data trend chart, operations staff send out ash in stifled grey alarm signal and storehouse pump by monitoring computer
Temperature changing trend figure and defeated grey main-piping pressure data variation tendency chart carry out comprehensive analysis, so that it may accurately judge defeated ash
The stifled grey situation of system and stifled grey point, avoid the frequent inspection on the scene of personnel.
The operating condition that operations staff monitors economizer ash-transmission system and single defeated ash cellar pump in time in the distance is realized, is subtracted
The frequency of few operations staff's inspection on the scene, or cancel the inspection on the scene of economizer ash-transmission system, the labour for reducing operations staff is strong
Degree.
It can judge which blow tank conveying is abnormal or defeated grey main pipe is abnormal in time, prompt the timely isolated fault storehouse of operations staff
Pump, improves the efficiency of troubleshooting, shortens failure storehouse pump to the influence to entire ash-transmission system；Reduce economizer ash simultaneously
Bucket improves ash-transmission system operational reliability since defeated ash causes the risk of a large amount of dust stratifications not in time.
Ash-transmission system anti-blocking monitoring system online, grey temperature is used together with ash conveying pipe pressure monitoring in the pump of storehouse, raising
The accuracy of system operating analysis reduces the erroneous judgement of system failure personnel.
Description of the drawings
Fig. 1 for no thermometric thermal resistance economizer it is defeated ash system connection diagram.
Fig. 2 is the economizer ash-transmission system connection diagram of the present invention.
Fig. 3 is the temperature profile of the normal defeated ash of remote monitoring computer CRT picture economizers storehouse pump.
Fig. 4, Fig. 5 are the temperature profile of the abnormal defeated ash of remote monitoring computer CRT picture economizers storehouse pump.
Fig. 6 is the defeated grey main-piping pressure normalized curve figure of remote monitoring computer CRT picture economizers.
Fig. 7, Fig. 8 are the defeated grey main-piping pressure abnormal curve figure of remote monitoring computer CRT picture economizers.
Fig. 9 is anti-blocking monitoring system flow chart.
1 is economizer hopper in figure, and 2 be manual discharge valve, and 3 be expansion joint, and 4 be automatic discharging valve, and 5 be storehouse pump, and 6 be province
Larger char particle, coke button or foreign matter in coal device ash bucket collection ash, 7 be larger char particle, coke button or foreign matter, and 8 be piping filter, 9
It is pneumatic pipe（Valve）, 10 be ash conveying pipe, and 11 be pressure measurement transmitter, and 12 be the press-in connection signal needed for DCS system
Cable, 13 be DCS access fasteners, and 14 be monitoring computer, and 15 be that temperature measures thermal resistance, and 16 be the temperature needed for DCS system
Connection signal cable.
Specific implementation mode
The present invention is as shown in Figure 2,3.
For economizer ash-transmission system, anti-blocking monitoring system, the ash-transmission system include ash-transmission system and monitoring system to one kind online
It unites, includes pneumatic pipe in ash-transmission system（Valve）9, ash conveying pipe 10 are equipped with storehouse by pipeline on ash conveying pipe 10 and pump 5, storehouse
Pump is connected with automatic discharging valve 4, is connected with expansion joint 3 on automatic discharging valve, and province is connected with by manual discharge valve 2 on expansion joint
Coal device ash bucket 1, monitoring system include press-in connection signal cable 12, the DCS access cards needed for pressure transmitter 11 and DCS system
Part 13, monitoring computer 14 install thermometric thermal resistance 15 and DCS for measuring grey temperature in the pump of storehouse additional in each storehouse pump 5
Temperature connection signal cable 16, DCS needed for system access fastener 13.
The shoulder position of storehouse pump 5, which installs additional, measures the thermometric thermal resistance 15 of grey temperature and the temperature needed for DCS system in the pump of storehouse
Connection signal cable 16, temperature measure thermal resistance 15 and access fastener 13 by DCS system temperature connection signal cable 16 and DCS,
Unit DCS control systems are accessed, relevant Logical Configuration is carried out, the temperature data situation of change in a period of time is monitored, is supervising
The CRT pictures for controlling computer show grey temperature value in storehouse pump 5, and real-time measuring temperature data persistently reduce in certain time, monitoring
Computer can send out stifled grey alarm signal, and operations staff is reminded to monitor in time.
Temperature data trend chart grey in export pump 5, such as Fig. 3 can be in monitoring computer CRT monitoring screens.
Temperature data variation tendency Abnormal Map 4, Fig. 5 in CRT pictures are judged as defeated in conjunction with main-piping pressure variation such as 7, Fig. 8
Stifled grey point in ash system.Fig. 4 temperature decrease rates are slow, show that corresponding bin pump has slight stifled ash, Fig. 5 temperature decrease rates
Soon, show that the stifled ash of corresponding bin pump is serious；The abnormal rising of Fig. 7 ash conveying pipe pressure shows that stifled ash point is sent out in pressure-measuring-point downstream
Raw stifled ash, the abnormal decline of Fig. 8 ash conveying pipe pressure show that in pressure-measuring-point upstream stifled ash occurs for stifled ash point.Operations staff's root
According to stifled ash alarm and temperature, pressure trend figure, judges stifled grey fault point and be isolated in time, handle stifled grey point, reduce operation
Person works' intensity and repair and maintenance amount improve system reliability.
Thermometric thermal resistance is installed at the top shoulder position of storehouse pump 5 by the present invention, reduces flying dust to temperature-measuring element
The influence of abrasion and controlling level to accuracy of measurement improves the accuracy of the online anti-blocking monitoring detecting system of ash-transmission system.
The workflow of anti-blocking monitoring system is shown in Fig. 9.
Claims (2)
1. one kind being used for economizer ash-transmission system anti-blocking monitoring system online, which includes ash-transmission system, defeated
It include pneumatic pipe in ash system（Valve）, ash conveying pipe, pumped equipped with storehouse by pipeline on ash conveying pipe, storehouse pump is connected with automatic
Discharge valve, is connected with expansion joint on automatic discharging valve, and economizer hopper, feature are connected with by manual discharge valve on expansion joint
It is：Economizer ash-transmission system is additionally provided with monitoring system, and monitoring system includes that temperature measures thermal resistance and pressure measurement transmitter,
The thermometric thermal resistance for measuring grey temperature in the pump of storehouse is installed additional in each storehouse pump；Ash conveying pipe is equipped with pressure measurement pick-up
Device；Temperature measures thermal resistance and pressure measurement transmitter and accesses fastener by connection signal cable, the DCS needed for DCS system, connects
Enter unit DCS control systems, carry out relevant Logical Configuration, monitors the temperature data situation of change in a period of time, storehouse is pumped
The measuring temperature data and ash conveying pipe pressure measurement data of middle ash pass to monitoring computer CRT pictures monitoring；In certain time
Real-time measuring temperature data persistently reduce or measure in real time pressure data and irregular variation is presented, and monitoring computer sends out stifled ash report
Alert signal；Grey real-time measuring temperature curve and defeated grey main-piping pressure plots changes comprehensive analysis in being pumped again by storehouse, just
It can the stifled grey fault point of accurate judgement.
2. a kind of system for the anti-blocking monitoring online of economizer ash-transmission system according to claim 1, it is characterised in that：
It is installed at storehouse in the thermometric thermal resistance and pumps shoulder position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810274601.XA CN108438910A (en) | 2018-03-30 | 2018-03-30 | One kind being used for economizer ash-transmission system anti-blocking monitoring system online |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810274601.XA CN108438910A (en) | 2018-03-30 | 2018-03-30 | One kind being used for economizer ash-transmission system anti-blocking monitoring system online |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108438910A true CN108438910A (en) | 2018-08-24 |
Family
ID=63198296
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810274601.XA Pending CN108438910A (en) | 2018-03-30 | 2018-03-30 | One kind being used for economizer ash-transmission system anti-blocking monitoring system online |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111122706A (en) * | 2019-12-13 | 2020-05-08 | 上海外经集团控股有限公司 | Non-contact type pipeline foreign matter exploration device and method |
| CN112799362A (en) * | 2020-12-31 | 2021-05-14 | 华能南京金陵发电有限公司 | Pneumatic ash conveying abnormal state diagnosis and fault early warning method |
| CN113060556A (en) * | 2021-03-15 | 2021-07-02 | 大唐淮南洛河发电厂 | Pneumatic ash removal and blockage removal method |
| CN114035517A (en) * | 2021-10-21 | 2022-02-11 | 中石化宁波工程有限公司 | Control system and method for conveying materials by multiple bin pumps |
| CN114751200A (en) * | 2022-04-08 | 2022-07-15 | 无锡红旗除尘设备有限公司 | Powder pneumatic conveying control method |
| CN115401045A (en) * | 2022-08-16 | 2022-11-29 | 红云红河烟草(集团)有限责任公司 | Method and device for automatically cleaning ash and dredging blocked hopper of dust remover and storage medium thereof |
| WO2024148980A1 (en) * | 2023-01-10 | 2024-07-18 | 国家电投集团江西电力有限公司景德镇发电厂 | Early fault warning method and apparatus for pneumatic ash conveying, electronic device and storage medium |
-
2018
- 2018-03-30 CN CN201810274601.XA patent/CN108438910A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111122706A (en) * | 2019-12-13 | 2020-05-08 | 上海外经集团控股有限公司 | Non-contact type pipeline foreign matter exploration device and method |
| CN112799362A (en) * | 2020-12-31 | 2021-05-14 | 华能南京金陵发电有限公司 | Pneumatic ash conveying abnormal state diagnosis and fault early warning method |
| CN113060556A (en) * | 2021-03-15 | 2021-07-02 | 大唐淮南洛河发电厂 | Pneumatic ash removal and blockage removal method |
| CN114035517A (en) * | 2021-10-21 | 2022-02-11 | 中石化宁波工程有限公司 | Control system and method for conveying materials by multiple bin pumps |
| CN114751200A (en) * | 2022-04-08 | 2022-07-15 | 无锡红旗除尘设备有限公司 | Powder pneumatic conveying control method |
| CN115401045A (en) * | 2022-08-16 | 2022-11-29 | 红云红河烟草(集团)有限责任公司 | Method and device for automatically cleaning ash and dredging blocked hopper of dust remover and storage medium thereof |
| CN115401045B (en) * | 2022-08-16 | 2023-12-12 | 红云红河烟草(集团)有限责任公司 | Method and device for automatically cleaning and dredging blockage of dust remover hopper and storage medium thereof |
| WO2024148980A1 (en) * | 2023-01-10 | 2024-07-18 | 国家电投集团江西电力有限公司景德镇发电厂 | Early fault warning method and apparatus for pneumatic ash conveying, electronic device and storage medium |
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Legal Events
| Date | Code | Title | Description |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180824 |
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| WD01 | Invention patent application deemed withdrawn after publication |