CN203384968U - Protective device of biomass circular fluidized boiler economizer tube bundle - Google Patents
Protective device of biomass circular fluidized boiler economizer tube bundle Download PDFInfo
- Publication number
- CN203384968U CN203384968U CN201320358879.8U CN201320358879U CN203384968U CN 203384968 U CN203384968 U CN 203384968U CN 201320358879 U CN201320358879 U CN 201320358879U CN 203384968 U CN203384968 U CN 203384968U
- Authority
- CN
- China
- Prior art keywords
- economizer
- steel plate
- fin
- band steel
- biomass
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Fluidized-Bed Combustion And Resonant Combustion (AREA)
Abstract
The utility model discloses a protective device of a biomass circular fluidized boiler economizer tube bundle, belongs to the technical field of boiler accessories. The protective device is characterized in that a wearing tile is arranged on a first tube bank of a closed economizer, and a flat steel plate for protecting is welded on a fin position at the upper part of a second tube bank; the length of the flat steel plate is the actual length of the economizer tube bank, the width is 30-40mm, the thickness is 4-7mm, and an included angle between the flat steel plate and the fin is 120-140 DEG. According to the protective device disclosed by the utility model, the service life of the economizer can be prolonged by 3-5 years, the maintenance and replacement are convenient; a new flat steel plate can be welded easily even if the flat steel plate is damaged by abrasion, the maintenance cost is directly reduced, and the normal operation rate of the boiler is improved.
Description
Technical field
The utility model relates to a kind of biomass circulating fluid boiler economizer pipe row's protector, belongs to the boiler accessories technical field.
Background technology
The main fuel of biomass electric power plant is that rice husk, cotton stalk and agriculture and forestry organic waste material are main.In combustion process, biomass fuel advances that moisture, the particle of stokehold is all inhomogeneous, and fuel itself is light material, and after burning, flue gas flow rate is quite fast, just increase of friction naturally.The enclosed economizer that general biomass boiler is used; the ground floor pipe has the wearing-resistant tile protection; the second layer is not established the wearing-resistant tile protection, makes it through long powerful sweep of gases, serious wear; service life is once needed to change economizer to 2 years; it is cumbersome that economizer is changed in maintenance, changes long in time limitly, not only will increase maintenance cost; the production that also will delay 10-20 days, have a strong impact on the productivity effect of enterprise.
Summary of the invention
For overcoming the above-mentioned defect in existing biomass circulating fluid boiler economizer pipe row use procedure, the utility model provides a kind of biomass circulating fluid boiler economizer pipe row's protector, in order to extend the service life of economizer, reduce maintenance workload, reduce operating cost.
For solving its technical problem, the technical solution adopted in the utility model is; Be provided with a wearing-resistant tile on the first comb of enclosed type economizer, in the second fin position, comb top, by being welded with a band steel plate that plays protective action, the physical length that the length of this band steel plate is economizer hand, width are that 30-40mm, thickness are 4-7mm, and the angle between this band steel plate and fin is 120 °-140 °.
Be preferably: in the second fin position, comb top, by being welded with a band steel plate that plays protective action, the physical length that the length of this band steel plate is economizer hand, width are that 35mm, thickness are 6mm, and the angle between this band steel plate and fin is 130 °.
Compared with prior art, the utility model has following characteristics and progress: because first comb of the utility model at the biomass circulating fluid boiler economizer is provided with on the basis of wearing-resistant tile, in the second fin position, comb top, be welded with fin form 120 ° of-140 ° of angles and wide for 30-40mm, thickly play the band steel plate of protective action for 4-7mm, while making work, the sweep of gases that boiler produces is after economizer the first comb, change the whirlpool that washes away generation of former design flue gas and reduce sweep of gases direction strength, flue-gas swirl is injured less than the second comb; Avoid enclosed economizer second row can not fill the drawback of wearing-resistant tile, can extend economizer life-span 3-5; Keep in repair in addition simultaneously, change advantage easily, even the band steel plate wearing and tearing are bad, again weld a band steel plate also very simple, therefore can directly reduce maintenance cost, improve the normal operation ratio of boiler.
The accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is further illustrated:
Fig. 1 is the structural representation cutaway view of biomass boiler,
Fig. 2 is flue gas flow direction and the structural representation of economizer in biomass boiler.
In figure: 1, charging aperture, 2, water cooled wind chamber, 3, water-cooling screen, 4, pendant superheater, 5, high temperature superheater, 6, low temperature superheater, 7, economizer, 8, air preheater, 9, exhaust chimney, 10, wearing-resistant tile, 11, the first comb of economizer, 12, fin, 13, the second comb of economizer, 14, band steel plate.
The specific embodiment
Embodiment 1: referring to accompanying drawing: as shown in Figure 1 by charging aperture 1, water cooled wind chamber 2, water-cooling screen 3, pendant superheater 4, high temperature superheater 5, low temperature superheater 6, economizer 7, in the economizer 7 of the biomass boiler system that air preheater 8 and exhaust chimney 9 form, be provided with protector as shown in Figure 2, the first comb 11 upper design at economizer have wearing-resistant tile 10, on first comb 11 and the fin 12 between the second comb 13 of economizer, be welded with the band steel plate 14 of protective action, the physical length that the length of this band steel plate is economizer hand, width is 30mm, thickness is 4mm, between it and fin, angle is 120 °.
Embodiment 2: referring to accompanying drawing: as shown in Figure 1 by charging aperture 1, water cooled wind chamber 2, water-cooling screen 3, pendant superheater 4, high temperature superheater 5, low temperature superheater 6, economizer 7, in the economizer 7 of the biomass boiler system that air preheater 8 and exhaust chimney 9 form, be provided with protector as shown in Figure 2, the first comb 11 upper design at economizer have wearing-resistant tile 10, on first comb 11 and the fin 12 between the second comb 13 of economizer, be welded with the band steel plate 14 of protective action, the physical length that the length of this band steel plate is economizer hand, width is 35mm, thickness is 6mm, between it and fin, angle is 120 °.
Embodiment 3: referring to accompanying drawing: as shown in Figure 1 by charging aperture 1, water cooled wind chamber 2, water-cooling screen 3, pendant superheater 4, high temperature superheater 5, low temperature superheater 6, economizer 7, in the economizer 7 of the biomass boiler system that air preheater 8 and exhaust chimney 9 form, be provided with protector as shown in Figure 2, the first comb 11 upper design at economizer have wearing-resistant tile 10, on first comb 11 and the fin 12 between the second comb 13 of economizer, be welded with the band steel plate 14 of protective action, the physical length that the length of this band steel plate is economizer hand, width is 40mm, thickness is 7mm, between it and fin, angle is 140 °.
Claims (3)
1. biomass circulating fluid boiler economizer pipe row's protector, it is characterized in that: be provided with a wearing-resistant tile on the first comb of enclosed type economizer, in the second fin position, comb top, by being welded with a band steel plate that plays protective action, the physical length that the length of this band steel plate is economizer hand, width are that 30mm, thickness are 4mm, and between it and fin, angle is 120 °.
2. the protector that biomass circulating fluid boiler economizer pipe according to claim 1 is arranged, it is characterized in that: the band steel plate of described protective action, the physical length that the length of this band steel plate is economizer hand, width be for for 35mm, thickness are 6mm, and the angle between it and fin is 130 °.
3. the protector that biomass circulating fluid boiler economizer pipe according to claim 1 is arranged, it is characterized in that: the band steel plate of described protective action, the physical length that the length of this band steel plate is economizer hand, width are that 40mm, thickness are 7mm, and between it and fin, angle is 140 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320358879.8U CN203384968U (en) | 2013-06-21 | 2013-06-21 | Protective device of biomass circular fluidized boiler economizer tube bundle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320358879.8U CN203384968U (en) | 2013-06-21 | 2013-06-21 | Protective device of biomass circular fluidized boiler economizer tube bundle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203384968U true CN203384968U (en) | 2014-01-08 |
Family
ID=49873450
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320358879.8U Expired - Fee Related CN203384968U (en) | 2013-06-21 | 2013-06-21 | Protective device of biomass circular fluidized boiler economizer tube bundle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203384968U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106642054A (en) * | 2016-12-27 | 2017-05-10 | 安徽海螺川崎工程有限公司 | Superheater protective structure |
| CN106895416A (en) * | 2017-02-27 | 2017-06-27 | 绿能（杭州）企业管理有限公司 | A kind of superheater of garbage burning boiler |
-
2013
- 2013-06-21 CN CN201320358879.8U patent/CN203384968U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106642054A (en) * | 2016-12-27 | 2017-05-10 | 安徽海螺川崎工程有限公司 | Superheater protective structure |
| CN106895416A (en) * | 2017-02-27 | 2017-06-27 | 绿能（杭州）企业管理有限公司 | A kind of superheater of garbage burning boiler |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203384968U (en) | Protective device of biomass circular fluidized boiler economizer tube bundle | |
| CN205014342U (en) | Water -cooling wall high temperature corrosion device is prevented to adherence wind with independent induced duct | |
| CN103032887A (en) | Method for realizing energy-saving running of coal burning boiler | |
| CN204478019U (en) | One prevents living beings coking boiler | |
| CN206572491U (en) | A kind of shoe | |
| CN107604122B (en) | Movable smoke hood for converter waste heat boiler | |
| CN103615799B (en) | Energy-saving environment-friendly multi-stage water boiler | |
| CN206803198U (en) | A kind of wet desulphurization antiseepage Anti-corrosive chimney | |
| CN204943521U (en) | A kind of boiler steam blowing apparatus for ash | |
| CN205447790U (en) | Flue gas heater with defogging dust removal function | |
| CN202329342U (en) | Self-cleaning H-type fin | |
| CN205606554U (en) | Online clean bispin flows coal gas nozzle device | |
| CN205317055U (en) | Finned tube diaphragm type low -level (stack -gas) economizer | |
| CN202868703U (en) | H-type chimney | |
| CN204063552U (en) | A kind of baffled hot-blast stove | |
| CN201724203U (en) | Parallel-level-arrangement biomass fuel boiler economizer | |
| CN209459485U (en) | A kind of exchange fin structure | |
| CN203364186U (en) | Ignition device of main furnace end | |
| CN205678690U (en) | A kind of thermal power plant chimney titanium steel composite board shaped piece | |
| CN203744276U (en) | Boiler with bagasse as fuel | |
| CN203116266U (en) | Coal direct-fired machine with coilers and liquid-cooled fire grate | |
| CN209763026U (en) | Shielding wall structure for protecting first row of tubes of boiler convection tube bundle | |
| EA008034B1 (en) | Ash-protection inlet fitting for vertical tubes of heat transfer tube bunch | |
| CN202521634U (en) | Secondary air device for boiler | |
| Boecher | SEC Interpretive Guidance for Climate-Related Disclosures |
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: 20140108 Termination date: 20160621 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |