CN110102405A - A kind of zero resistance granulating device of station boiler steam-line blowing - Google Patents
A kind of zero resistance granulating device of station boiler steam-line blowing Download PDFInfo
- Publication number
- CN110102405A CN110102405A CN201910452730.8A CN201910452730A CN110102405A CN 110102405 A CN110102405 A CN 110102405A CN 201910452730 A CN201910452730 A CN 201910452730A CN 110102405 A CN110102405 A CN 110102405A
- Authority
- CN
- China
- Prior art keywords
- pipe
- impurity
- granulating device
- exciting coil
- impurity capture
- Prior art date
- 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.)
- Pending
Links
- 238000007664 blowing Methods 0.000 title claims abstract description 16
- 239000012535 impurity Substances 0.000 claims abstract description 40
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 31
- 238000010926 purge Methods 0.000 abstract description 15
- 230000000694 effects Effects 0.000 abstract description 10
- 229910052742 iron Inorganic materials 0.000 description 8
- 239000002893 slag Substances 0.000 description 6
- 238000003466 welding Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 4
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 3
- 239000000356 contaminant Substances 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 206010003497 Asphyxia Diseases 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000013139 quantization Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C1/00—Magnetic separation
- B03C1/02—Magnetic separation acting directly on the substance being separated
- B03C1/10—Magnetic separation acting directly on the substance being separated with cylindrical material carriers
- B03C1/14—Magnetic separation acting directly on the substance being separated with cylindrical material carriers with non-movable magnets
Landscapes
- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention discloses a kind of zero resistance granulating devices of station boiler steam-line blowing, including inlet tube, impurity capture pipe, outlet, magnet exciting coil, iron core and power supply；Inlet tube is connected with one end of impurity capture pipe, outlet is connected with the other end of impurity capture pipe, the bottom of impurity capture pipe is communicated with scum pipe, magnet exciting coil is wound on iron core, and the bottom of iron core face impurity capture pipe, magnet exciting coil is controlled to a power supply, the flow passage resistance of the granulating device is small, good impurity removing effect, purging quality is high, and is not required to remove.
Description
Technical field
The invention belongs to Fossil Fueled Power Plant Project Capital Construction Debugging fields, are related to a kind of zero resistance collection grain of station boiler steam-line blowing
Device.
Background technique
New boiler manufacture, transport installation is even after chemical cleaning, inevitably superheater, reheater with
And welding slag, oxide skin, the impurity such as iron filings are remained in jet chimney, if not cleared up effectively it, may cause boiler by
Hot face tube blockage, the serious consequences such as steam turbine prime blade damage.Boiler Steam blowpipe is using self-produced after ignition of the boiler
Steam, carries out big flow purging to superheater, reheater system and its subsidiary pipeline, and the impurity such as welding slag iron filings are blown out boiler
Outside, guarantee the subsequent starting safety of unit.
When initial stage purges, to prevent the large granular impurity in superheater from entering reheater, it is desirable that add before reheater entrance
It fills granulating device (as shown in Figure 1).Granulating device is substantially a kind of filter net device of gas solid separation, includes shell (outer cylinder) in structure
And strainer (inner cylinder).It after impure steam flow enters granulating device, is spread from outer cylinder to inner cylinder, bulky grain can not pass through strainer, quilt
It is blocked between inner/outer tube, is finally discharged from the ash gate of bottom.
1, flow passage resistance is big, and steam drop loss is serious.After steam stream enters granulating device, since runner design is unreasonable,
Steam flow directly hits outer cylinder tail portion, causes the larger loss of momentum.After hitting failure, steam flow between inner/outer tube, is relied on by suffocation
The high pressure of steam inlet pipe, forces steam through apertured filter screens, this can undoubtedly increase ventilation losses again.
2, flow passage resistance is big, influences to purge quality.Since granulating device flow passage resistance is big, lead to the pressure of superheater outlet accumulation
Power is higher, and the inlet and outlet pressure drop of superheater is small, superheater pipe-blowing coefficient (pipe-blowing coefficient is the quantization means of evaluation purging quality,
Coefficient > 1 just has purging effect) it is relatively low, it purges of poor quality.After steam flows through granulating device, the biggish pressure loss, band are had
Carry out the low problem of reheater inlet steam pressure, low-pressure steam will have a greatly reduced quality to the purging effect of reheater.
3, aperture of filter screen is big, it is difficult to remove little particle impurity.The aperture of circular hole on strainer, it is desirable that it is not more than 12mm, it is practical
It is mostly 10mm or so in engineering, for the partial sizes such as iron rust iron filings 5mm little particle below, does not have separating capacity, this can significantly
Influence impurity-eliminating effect.
4, heavy workload is removed, working hour is long, influences project progress.After superheater purging is clean, granulating device need to be torn open
It removes, cuts, welds, the techniques such as metal heat treatmet need to expend 3-5 days time, be affected to the duration.
To solve the above problems, proposing a kind of small flow passage resistance, good impurity removing effect, purging quality height, without the collection of dismounting
Grain device guarantees that duration progress is of great significance for improving blowpipe quality.
Summary of the invention
It is an object of the invention to overcome the above-mentioned prior art, a kind of resistance of station boiler steam-line blowing zero is provided
The flow passage resistance of power granulating device, the granulating device is small, good impurity removing effect, and purging quality is high, and is not required to remove.
In order to achieve the above objectives, zero resistance granulating device of station boiler steam-line blowing of the present invention include inlet tube, it is miscellaneous
Matter trap tube, outlet, magnet exciting coil, iron core and power supply；
Inlet tube is connected with one end of impurity capture pipe, and outlet is connected with the other end of impurity capture pipe, impurity
The bottom of trap tube is communicated with scum pipe, and magnet exciting coil is wound on iron core, the bottom of iron core face impurity capture pipe, excitation wire
Circle is controlled to a power supply.
Deflector is provided in impurity capture pipe, wherein along steam flow direction, the thickness of deflector is gradually increased.
Magnet exciting coil is controlled to a power supply by control switch.
Residual cake valve is provided on scum pipe.
The invention has the following advantages:
Zero resistance granulating device of station boiler steam-line blowing of the present invention is replaced when specific operation with invisible magnetic field
Circular hole strainer carries out high-intensitive absorption and separation to the ferrous contaminants of all partial sizes, specifically, magnet exciting coil is wound in iron core
On, magnet exciting coil is controlled to a power supply, so that magnetic field is formed in impurity capture pipe, when the steam stream stream containing welding slag and iron filings
When through impurity capture pipe, welding slag and iron filings are moved downward by strong magneticaction, and are finally adsorbed on the bottom of impurity capture pipe
Portion, to realize the separation of different-grain diameter ferrous contaminants, good impurity removing effect, purging quality is high, while avoiding using strainer, to have
Effect reduces the flow passage resistance of steam, and without removing, saves a large amount of manpower working hours, guarantee the duration progress of engineering.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of existing granulating device；
Fig. 2 is structural schematic diagram of the invention.
Wherein, 1 it is inlet tube, 2 be deflector, 3 be outlet, 4 be scum pipe, 5 be iron core, 6 be magnet exciting coil, 7 is
Control switch, 8 be power supply, 9 be impurity capture pipe.
Specific embodiment
The invention will be described in further detail with reference to the accompanying drawing:
With reference to Fig. 2, zero resistance granulating device of station boiler steam-line blowing of the present invention includes inlet tube 1, impurity capture
Pipe 9, outlet 3, magnet exciting coil 6, iron core 5 and power supply 8；Inlet tube 1 is connected with one end of impurity capture pipe 9, outlet 3 with
The other end of impurity capture pipe 9 is connected, and the bottom of impurity capture pipe 9 is communicated with scum pipe 4, and magnet exciting coil 6 is wound in iron core 5
On, the bottom of 5 face impurity capture pipe 9 of iron core, magnet exciting coil 6 is connected with power supply 8.
Deflector 2 is provided in impurity capture pipe 9, wherein along steam flow direction, the thickness of deflector 2 is gradually increased；
Magnet exciting coil 6 is connected by control switch 7 with power supply 8；Residual cake valve is provided on scum pipe 4.
Specific work process of the invention are as follows:
When boiler carries out steam blowing, magnet exciting coil 6 is powered under the control of control switch 7, and iron core 5 generates high-intensity magnetic field,
Steam stream containing welding slag and iron filings is entered in impurity capture pipe 9 by inlet tube 1, final suitable under the action of deflector 2
Freely enter in outlet 3, for steam during flowing through impurity capture pipe 9, welding slag and iron filings are downward by strong magneticaction
Movement, and it is finally adsorbed on the bottom of impurity capture pipe 9, after steam-line blowing works, power supply 8 stops power supply, utilizes deslagging
The impurity being collected into impurity capture pipe 9 is discharged pipe 4.
Tangible strainer is replaced with invisible magnetic field in impurity capture pipe 9, realizes the height of any partial size ferrous contaminants
Effect trapping, arresting efficiency are significantly larger than strainer.In addition, substantially without any resistance, steam pressure damage when steam flows through the present invention
Small, blowpipe kinetic energy height is lost, purging effect is good.
Existing granulating device is mounted between superheater and reheater, after superheater purges, to reduce system resistance, is mentioned
The purging pressure of high reheater, granulating device need to be removed from pipeline, after the completion of granulating device cutting, need to also be welded again at former position
New pipeline, row metal of going forward side by side heat treatment, this dismounting, re-installation effort need to expend 3-5 days, have larger impact to duration progress, this
Through-flow zero resistance is invented, boiler blow piping overall process is all not necessarily to remove, and manpower working hour is greatly saved, and improves blowpipe efficiency.
Claims (4)
1. a kind of zero resistance granulating device of station boiler steam-line blowing, which is characterized in that including inlet tube (1), impurity capture pipe
(9), outlet (3), magnet exciting coil (6), iron core (5) and power supply (8)；
Inlet tube (1) is connected with one end of impurity capture pipe (9), and outlet (3) is connected with the other end of impurity capture pipe (9)
Logical, the bottom of impurity capture pipe (9) is communicated with scum pipe (4), and magnet exciting coil (6) is wound on iron core (5), iron core (5) face
The bottom of impurity capture pipe (9), magnet exciting coil (6) are connected with power supply (8).
2. zero resistance granulating device of station boiler steam-line blowing according to claim 1, which is characterized in that impurity capture pipe
(9) deflector (2) are provided in, wherein along steam flow direction, the thickness of deflector (2) is gradually increased.
3. zero resistance granulating device of station boiler steam-line blowing according to claim 1, which is characterized in that magnet exciting coil (6)
It is connected by control switch (7) with power supply (8).
4. zero resistance granulating device of station boiler steam-line blowing according to claim 1, which is characterized in that on scum pipe (4)
It is provided with residual cake valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910452730.8A CN110102405A (en) | 2019-05-28 | 2019-05-28 | A kind of zero resistance granulating device of station boiler steam-line blowing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910452730.8A CN110102405A (en) | 2019-05-28 | 2019-05-28 | A kind of zero resistance granulating device of station boiler steam-line blowing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110102405A true CN110102405A (en) | 2019-08-09 |
Family
ID=67492668
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910452730.8A Pending CN110102405A (en) | 2019-05-28 | 2019-05-28 | A kind of zero resistance granulating device of station boiler steam-line blowing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110102405A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112833381A (en) * | 2020-12-25 | 2021-05-25 | 华电电力科学研究院有限公司 | Steam blowing pipe particle collector and using method thereof |
| CN113600335A (en) * | 2021-07-02 | 2021-11-05 | 华电电力科学研究院有限公司 | Assembling process for each part of blowing particle collector of steam pipeline of power station boiler |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5013962A (en) * | 1973-04-27 | 1975-02-13 | ||
| JPS5814959A (en) * | 1981-07-20 | 1983-01-28 | Daido Steel Co Ltd | Apparatus for separating dust |
| JPH0435754A (en) * | 1990-05-29 | 1992-02-06 | Mitsubishi Heavy Ind Ltd | Collecting device for magnetic iron oxide |
| JPH09271732A (en) * | 1996-04-09 | 1997-10-21 | Ishikawajima Harima Heavy Ind Co Ltd | Removing device of foreign matters in piping |
| CN102215975A (en) * | 2008-11-13 | 2011-10-12 | 西门子公司 | Device for separating ferromagnetic particles from a suspension |
| CN205352066U (en) * | 2016-01-28 | 2016-06-29 | 江西百新电瓷电气有限公司 | Coal gas deironing device for kiln |
| CN108106972A (en) * | 2017-12-08 | 2018-06-01 | 北京理工大学 | A kind of metallic particles on-line detecting system of particle separate type |
| CN210097944U (en) * | 2019-05-28 | 2020-02-21 | 西安热工研究院有限公司 | Power plant boiler steam blowpipe zero resistance particle collector |
-
2019
- 2019-05-28 CN CN201910452730.8A patent/CN110102405A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5013962A (en) * | 1973-04-27 | 1975-02-13 | ||
| JPS5814959A (en) * | 1981-07-20 | 1983-01-28 | Daido Steel Co Ltd | Apparatus for separating dust |
| JPH0435754A (en) * | 1990-05-29 | 1992-02-06 | Mitsubishi Heavy Ind Ltd | Collecting device for magnetic iron oxide |
| JPH09271732A (en) * | 1996-04-09 | 1997-10-21 | Ishikawajima Harima Heavy Ind Co Ltd | Removing device of foreign matters in piping |
| CN102215975A (en) * | 2008-11-13 | 2011-10-12 | 西门子公司 | Device for separating ferromagnetic particles from a suspension |
| CN205352066U (en) * | 2016-01-28 | 2016-06-29 | 江西百新电瓷电气有限公司 | Coal gas deironing device for kiln |
| CN108106972A (en) * | 2017-12-08 | 2018-06-01 | 北京理工大学 | A kind of metallic particles on-line detecting system of particle separate type |
| CN210097944U (en) * | 2019-05-28 | 2020-02-21 | 西安热工研究院有限公司 | Power plant boiler steam blowpipe zero resistance particle collector |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112833381A (en) * | 2020-12-25 | 2021-05-25 | 华电电力科学研究院有限公司 | Steam blowing pipe particle collector and using method thereof |
| CN113600335A (en) * | 2021-07-02 | 2021-11-05 | 华电电力科学研究院有限公司 | Assembling process for each part of blowing particle collector of steam pipeline of power station boiler |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110102405A (en) | A kind of zero resistance granulating device of station boiler steam-line blowing | |
| CN101961680B (en) | Vibration-free round wet-type electrostatic dust collector | |
| CN104415628B (en) | Containing dirt vapour stream flue gas Wet-type high-efficient wet down cleaning apparatus | |
| CN108889480A (en) | A kind of sol particle object injection apparatus and clean method | |
| CN1247879C (en) | Catcher for catching boiler scale flew toward steam turbine | |
| CN210097944U (en) | Power plant boiler steam blowpipe zero resistance particle collector | |
| CN112833381B (en) | Steam blowing pipe particle collector and using method thereof | |
| RU143738U1 (en) | SMOKE PIPE NOZZLE | |
| CN208099584U (en) | A kind of plasma cutting machine can be absorbed and handle flue dust | |
| JP2009113014A (en) | Bag filter structure | |
| CN205995619U (en) | Composite type bundle electrostatic precipitator | |
| CN209501052U (en) | A kind of flue gas particles capturing device based on peripheral flow principle | |
| CN203770941U (en) | Particle collector | |
| CN202015555U (en) | Pulse bag type dust collector for mine gravel | |
| CN201394398Y (en) | Air tank pulse bag type dust collector | |
| CN207823512U (en) | A kind of workpiece gap wiper mechanism of forging machine | |
| CN207838523U (en) | A kind of novel pulse type reverse blowing dust remover | |
| CN204159164U (en) | A kind of modified venturi water-curtain separate | |
| CN208356334U (en) | A kind of low pressure pulse bag filter blowing device | |
| CN208893873U (en) | It is welded environmental protection equipment | |
| CN104930908A (en) | Comprehensive anti-scaling system for mine cooling engineering | |
| JPS59154121A (en) | Strainer | |
| CN107008140B (en) | Closed circulation deoxidization device | |
| CN103463887A (en) | Automatic backwashing type spark catching device | |
| CN210934298U (en) | Cyclone dust removal device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |