CN108709093A - A kind of gas burner tube-type air preheater fluorescent powder leakage inspection method - Google Patents
A kind of gas burner tube-type air preheater fluorescent powder leakage inspection method Download PDFInfo
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- CN108709093A CN108709093A CN201810583932.1A CN201810583932A CN108709093A CN 108709093 A CN108709093 A CN 108709093A CN 201810583932 A CN201810583932 A CN 201810583932A CN 108709093 A CN108709093 A CN 108709093A
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- Prior art keywords
- air preheater
- fluorescent powder
- pipe
- gas burner
- type air
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D5/00—Protection or supervision of installations
- F17D5/02—Preventing, monitoring, or locating loss
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Air Supply (AREA)
Abstract
The invention discloses a kind of gas burner tube-type air preheater fluorescent powder leakage inspection methods, in the case where tubular air preheater tank inlet is blocked, air containing red fluorescence powder leaks into tubular air preheater box house pipe, red fluorescent powder can be left in tube wall, under flashlight illumination, tube wall meeting red fluorescence, the pipe that can find out box house leakage in this way are subject to maintenance process.The method of the present invention is simple to operation, reduces maintenance time and staff, while solving the maintenance problem of gas burner tube-type air preheater, improves the production efficiency of factory, and huge economic benefit is brought to factory.
Description
Technical field
The invention belongs to gas burner overhaul of the equipments fields, and in particular to a kind of gas burner tube-type air preheater fluorescent powder leakage detection side
Method.
Background technology
Air preheater is also called air preheater for short, is to improve boiler heat exchange performance, and the one kind for reducing thermal losses is pre-
Hot equipment.Tubular air preheater can be applied to gas burner, and the raising for improving inlet air temperature preheated air temperature is conducive to burner hearth
The abundant burning of fuel.With the accumulation of usage time, Tube Sheet of Heat Exchanger by flue dust it is worn out or corrosion after, can cause to leak out, drop
Low air preheat efficiency, not no sufficient oxygen amount in burner hearth, influences gas burner normal work.Now be badly in need of find out a set of leakage detection,
The technical solution of repair and maintenance is leaked out maintenance issue with solving gas burner tube-type air preheater part pipe burn into.
Invention content
To solve the above problems, the present invention provides a kind of gas burner tube-type air preheater fluorescent powder leakage inspection method, the present invention
Method is simple to operation, and searching air preheater using fluorescent powder leaks bad pipe, repairs in time.
The specific technical solution of the method for the present invention is：
A kind of gas burner tube-type air preheater fluorescent powder leakage inspection method, the specific steps are:
1) all people hole door before coal gas furnace body and tube-type air preheater is opened；
2) ventilation a period of time, after confirming the condition for having people's entrance inside burner hearth, staff enters in stove will be empty pre-
Device pipe smoke inlet is covered tightly with plastic cloth, and air is blocked to enter；
3) start two pressure fan of flue entrance and the air-introduced machine of flue end, adjustment fans entrance air door, auxiliary wind
Door aperture, guarantee furnace pressure are+300Pa；
4) fluorescent powder is sprinkled into from two air blower inlets by staff respectively, after fluorescent powder is sprinkled into work, is stopped transport
Draw, pressure fan, flue keeps gravity-flow ventilation；
5) staff removes plastic cloth at air preheater pipe smoke inlet, and foot hand is set up in air preheater pipe smoke outlet
Frame；
6) at air preheater pipe flue gas entry and exit, staff holds flashlight examination tube wall, has found out fluorescent powder
Blow-by tube and mark；
7) metal plug is used to block respectively the pipe entrance for carrying out leakage label.
The method of the present invention has the beneficial effect that：The present invention uses gas burner tube-type air preheater fluorescent powder leakage inspection method, in pipe
In the case that regenerative air heater tank inlet is blocked, the air containing red fluorescence powder is leak into tubular air preheater babinet
Portion's pipe can leave red fluorescent powder in tube wall, and under flashlight illumination, tube wall meeting red fluorescence in this way may be used
Pipe to find out box house leakage is subject to maintenance process.The method of the present invention is simple to operation, reduces maintenance time and work
Make personnel, while solving the maintenance problem of gas burner tube-type air preheater, improves the production efficiency of factory.
Description of the drawings
Fig. 1 is the work flow diagram of the method for the present invention.
Specific implementation mode
The present invention is further described through with reference to this specification attached drawing.
Tube leak in usual tubular air preheater babinet, can not visually check discovery.
The first half of the year in 2015, the 3 gas burner air preheater tube bank corrosion of horse steel thermal power plant are gradually serious, especially #6 stoves,
Air preheater corrosion failure, which leaks out, to be particularly acute, and when boiler load reaches 180t/h, oxygen amount needed for boiler combustion has been used up.Serious system
About boiler runs at full capacity.It leaks out to solve the pipe row's corrosion of horse steel thermal power plant gas burner tube-type air preheater box house part
Test problems, horse steel thermal power plant Blast Furnace Gas-fired Boiler tube-type air preheater carry out technological innovation, find out a set of leakage detection,
The technical solution of repair and maintenance solves the maintenance of leaking out of gas burner tube-type air preheater part pipe burn into using following example 1 and asks
Topic.
Embodiment 1
A kind of gas burner tube-type air preheater fluorescent powder leakage inspection method, particular exam step are：
1) all people hole door before coal gas furnace body and tube-type air preheater is opened；
2) ventilation a period of time, after confirming the condition for having people's entrance inside burner hearth, staff enters in stove will be empty pre-
Device pipe smoke inlet is covered tightly with plastic cloth, and air is blocked to enter；
3) start two pressure fan of flue entrance and the air-introduced machine of flue end, adjustment fans entrance air door, auxiliary wind
Door aperture, guarantee furnace pressure are+300Pa；
4) fluorescent powder is sprinkled into from two air blower inlets by staff respectively, after fluorescent powder is sprinkled into work, is stopped transport
Draw, pressure fan, flue keeps gravity-flow ventilation；
5) staff removes plastic cloth at air preheater pipe smoke inlet, and foot hand is set up in air preheater pipe smoke outlet
Frame；
6) at air preheater pipe flue gas entry and exit, staff holds flashlight examination tube wall, has found out fluorescent powder
Blow-by tube and mark；
7) metal plug is used to block respectively the pipe entrance for carrying out leakage label.
In the case where tubular air preheater tank inlet is blocked, the air containing red fluorescence powder leaks into tubular air
Preheater box house pipe can leave red fluorescent powder in tube wall, and under flashlight illumination, tube wall can be red
Fluorescence can find out the pipe of box house leakage and be subject to maintenance process in this way.
Using above-described embodiment method, horse steel thermal power plant is looked into the method that fluorescent powder jet printing is arranged to air preheater pipe
Leakage, leak source is more, and upper and lower opening carries out one-to-one confirmation when closure, and #4, #5, #6 stove are restrained with the presence of 620,120,520 respectively
It leaks out.
After #6 stoves repair on May 31st, 2015 starts, #6 boilers improve quantity of steam and are at least：30t/h；Thermal power plant steam
Parameter is：Pressure 9.8MPa, 530 DEG C of temperature, 40 tons of such parameter steam about send out 10,000 degree of electricity；It 1 year can multiple electricity：30×
24 × 300 ten thousand degree of ÷ 40=5400 convert into ten thousand yuan of 5400 × 0.56=3024 of RMB.By it was verified that utilizing the present invention
Method solves the Air Leakage of gas burner tube-type air preheater, improves the production efficiency of factory, also brings huge economy
Benefit.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
Any one skilled in the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention and its
Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (1)
1. a kind of gas burner tube-type air preheater fluorescent powder leakage inspection method, characterized in that the specific steps are:
1) all people hole door before coal gas furnace body and tube-type air preheater is opened；
2) ventilation a period of time, after confirming the condition for having people's entrance inside burner hearth, staff enters air preheater pipe in stove
Smoke inlet is covered tightly with plastic cloth, and air is blocked to enter；
3) start two pressure fan of flue entrance and the air-introduced machine of flue end, adjustment fans entrance air door, additional ventilation flap are opened
Degree, guarantee furnace pressure are+300Pa；
4) fluorescent powder is sprinkled into from two air blower inlets by staff respectively, and after fluorescent powder is sprinkled into work, stoppage in transit draws, send
Wind turbine, flue keep gravity-flow ventilation；
5) staff removes plastic cloth at air preheater pipe smoke inlet, and scaffold is set up in air preheater pipe smoke outlet；
6) at air preheater pipe flue gas entry and exit, staff holds flashlight examination tube wall, finds out letting out for fluorescent powder
Fistulae simultaneously marks；
7) metal plug is used to block respectively the pipe entrance for carrying out leakage label.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810583932.1A CN108709093A (en) | 2018-06-08 | 2018-06-08 | A kind of gas burner tube-type air preheater fluorescent powder leakage inspection method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810583932.1A CN108709093A (en) | 2018-06-08 | 2018-06-08 | A kind of gas burner tube-type air preheater fluorescent powder leakage inspection method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108709093A true CN108709093A (en) | 2018-10-26 |
Family
ID=63871537
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810583932.1A Pending CN108709093A (en) | 2018-06-08 | 2018-06-08 | A kind of gas burner tube-type air preheater fluorescent powder leakage inspection method |
Country Status (1)
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| CN (1) | CN108709093A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114811454A (en) * | 2022-05-10 | 2022-07-29 | 晋州市建投燃气有限公司 | Gas well pipeline leakage detection system and detection method |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10281924A (en) * | 1997-03-31 | 1998-10-23 | Furukawa Electric Co Ltd:The | Immersion sensor, immersion detecting device and immersion detecting system |
| CA2893672A1 (en) * | 2013-01-09 | 2014-07-17 | Cidra Corporate Services Inc. | Smart pipe concept based on embedded taggant-sensor and/or color-encoded elements to monitor liner wear in lined pipelines, including urethane lined pipe |
| CN103954408A (en) * | 2014-03-31 | 2014-07-30 | 舞阳钢铁有限责任公司 | Maintenance process for online fast leakage detection for air pre-heater |
| CN105021357A (en) * | 2015-06-24 | 2015-11-04 | 华北电力科学研究院有限责任公司 | Air preheater air leakage rate determination method and device |
| CN105043682A (en) * | 2015-08-04 | 2015-11-11 | 浙江工商大学 | Boiler leak detection system and method |
| CN107271110A (en) * | 2017-07-12 | 2017-10-20 | 北京市燃气集团有限责任公司 | A kind of steel gas pipe underground leak point positioning detection method positioned based on the Big Dipper |
| CN207280695U (en) * | 2017-08-22 | 2018-04-27 | 大唐陕西发电有限公司渭河热电厂 | A kind of bundled tube flue gas heat-exchange unit leakage detection apparatus |
-
2018
- 2018-06-08 CN CN201810583932.1A patent/CN108709093A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10281924A (en) * | 1997-03-31 | 1998-10-23 | Furukawa Electric Co Ltd:The | Immersion sensor, immersion detecting device and immersion detecting system |
| CA2893672A1 (en) * | 2013-01-09 | 2014-07-17 | Cidra Corporate Services Inc. | Smart pipe concept based on embedded taggant-sensor and/or color-encoded elements to monitor liner wear in lined pipelines, including urethane lined pipe |
| CN103954408A (en) * | 2014-03-31 | 2014-07-30 | 舞阳钢铁有限责任公司 | Maintenance process for online fast leakage detection for air pre-heater |
| CN105021357A (en) * | 2015-06-24 | 2015-11-04 | 华北电力科学研究院有限责任公司 | Air preheater air leakage rate determination method and device |
| CN105043682A (en) * | 2015-08-04 | 2015-11-11 | 浙江工商大学 | Boiler leak detection system and method |
| CN107271110A (en) * | 2017-07-12 | 2017-10-20 | 北京市燃气集团有限责任公司 | A kind of steel gas pipe underground leak point positioning detection method positioned based on the Big Dipper |
| CN207280695U (en) * | 2017-08-22 | 2018-04-27 | 大唐陕西发电有限公司渭河热电厂 | A kind of bundled tube flue gas heat-exchange unit leakage detection apparatus |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114811454A (en) * | 2022-05-10 | 2022-07-29 | 晋州市建投燃气有限公司 | Gas well pipeline leakage detection system and detection method |
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Application publication date: 20181026 |
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