CN105258145A - Flue type waste heat boiler - Google Patents
Flue type waste heat boiler Download PDFInfo
- Publication number
- CN105258145A CN105258145A CN201510772217.9A CN201510772217A CN105258145A CN 105258145 A CN105258145 A CN 105258145A CN 201510772217 A CN201510772217 A CN 201510772217A CN 105258145 A CN105258145 A CN 105258145A
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- CN
- China
- Prior art keywords
- flue
- waste heat
- heat boiler
- type waste
- pressure evaporator
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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
- Y02E20/30—Technologies for a more efficient combustion or heat usage
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
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- Treating Waste Gases (AREA)
- Chimneys And Flues (AREA)
Abstract
The invention relates to a flue type waste heat boiler. The flue type waste heat boiler comprises a smoke system, a superheater, a high-pressure evaporator, a low-pressure evaporator, a coal economizer, a steam drum chimney and a support framework, wherein the superheater, the high-pressure evaporator, the low-pressure evaporator, the coal economizer and a main chimney are connected from bottom to top through flues and fixed to the support framework, a steam drum is fixed to the outer part of the support framework, the smoke system comprises a main flue and a bypass flue arranged on the opening of the main flue, baffles are arranged at the inlet part of the main flue, below the chimney and below the chimney of the bypass flue, and a purifying device is arranged behind each baffle. The flue type waste heat boiler has the advantages that the whole structure is simple, the sealing and purifying effects are great, the maintenance and nursing costs of the waste heat boiler are reduced, and the service life of the waste heat boiler is prolonged.
Description
Technical field
The present invention relates to waste heat boiler field, specifically, is a kind of flue type waste heat boiler.
Background technology
Flue type waste heat boiler is the bearing device of the waste heat recovery device in industries such as petrochemical industry, metallurgy, building materials, light industry, machineries, the main smoke discharging residual heat recycling various stove.Flue type waste heat boiler is watertube boiler, and water or steam are at the Bottomhole pressure of heat pipe, and flow in the flue of flue gas outside heat pipe, flue gas, by washing away the outer surface of pipe, transfers heat to the water in pipe or water vapour.
When the high-temperature flue gas of stove sends into flue type waste heat boiler by flue, some high-temperature gas contains the particle such as dust, carbon black, easily results in blockage to waste heat boiler, constantly clears up, and can cause waste heat boiler erosive wear like that; Some high-temperature gases or even inflammable, explosive, poisonous gas, therefore, we structurally must consider the problem of dust blocking, erosive wear and sealing.
Summary of the invention
For solving the problem, the invention provides a kind of flue type waste heat boiler, it, when stove gas enters flue, carries out filtration, purification to described gas, and is provided with multi-sealing device, and structure is simple, and cost is low, effective.
The technical solution used in the present invention is: a kind of flue type waste heat boiler, comprise flue gas system, superheater, high pressure evaporator, low pressure evaporator, economizer, main chimney, scaffold, described superheater, high pressure evaporator, low pressure evaporator, economizer, main chimney is connected by flue from the bottom up and is fixed on scaffold, it is outside that described drum is fixed on described scaffold, described flue gas system comprises flue collector and is arranged on the bypass flue of described flue collector mouth, described flue collector porch is provided with master shield, flue damper is provided with below described chimney, by-pass damper is provided with below described bypass flue chimney, each baffle plate rear is provided with purifier.
Have two-way outlet from stove high-temperature flue gas out, a road enters described flue type waste heat boiler from flue collector, discharges from main chimney, and another road enters bypass flue, then discharges.Flue collector and bypass flue are equipped with baffle plate, and when stove is in running order, and when described flue type waste heat boiler does not work, the flapper closure of flue collector, opens by-pass damper; When stove and described flue type waste heat boiler all supply work, open master shield and flue damper, close by-pass damper; When described waste heat boiler short time blowing out, close flue damper, prevent ambient atmos from entering described waste heat boiler, avoid heat losses; For regulating the gas production of described flue type waste heat boiler, master shield and by-pass damper can part be opened or part closedown simultaneously; When waste heat boiler needs maintenance, closing master shield, open by-pass damper, make flue gas enter bypass flue, through being arranged on the purifier at by-pass damper rear, discharging from chimney bypass.Three baffle plates serve after sealing, adjustment adjusting gas flow and the quick effect baffle plate cooled and are provided with purifier; make the high-temperature flue gas sent in stove first enter in described flue type waste heat boiler again through filtration, purification, while protection of the environment, reduce the infringement to body of heater.
Further improvement, described purifier comprises the active carbon filter screen of bottom, is two-layer nanometer titanium dioxide coating woven wire, is filled with nano titanium dioxide porous particle between described nanometer titanium dioxide coating woven wire above described active carbon filter screen.
Nano titanium oxide has very high optical property, chemical stability, heat endurance, nontoxicity, Superhydrophilic, non-migratory, and absorption, reducing power are very strong, can degradation of sewage, harmful substance in air; High-temperature flue gas is first with crossing active carbon filter screen, there is the nanometer titanium dioxide coating woven wire of packed layer, adsorb dust, degrade the pernicious gases such as sulfur dioxide, purified gas is discharged, avoid environmental pollution, also prevent the damage of dust blocking and equipment, described purifier water rinses, the material that the dust that surface can be covered and degraded are formed washes, do not affect the active component of purifier, the sewage cleaned flows in the sewage disposal device of described flue type waste heat boiler.
Further improvement, described master shield, by-pass damper and flue damper are dual-layered baffle plate, and in louvered or " eight " word formula opened/closed, dual-layered baffle plate sealing effectiveness is better.
Further improvement, the inwall that described flue contacts with high-temperature flue gas is heat-resisting alloy steel plate, and its outer wall is charcoal steel plate, is mineral fibres heat-insulation layer between described flue inner wall and outer wall, reduces radiation loss, ensures the safety of operations staff.
Further improvement, described flue collector and described bypass flue are provided with expansion joint, can absorb the elongation of flue, reduce thermal stress.
Further improvement, be provided with the cantilever frame stretched out outside the scaffold of fixing described economizer, described drum is suspended on described cantilever frame, makes described drum have enough flexibility; Because drum bottom is provided with down-comer, its top is provided with economizer water inlet pipe, evaporimeter steam water interface inlet tube and saturated vapor fairlead etc., when these tube connector expanded by heating, can produce additional stress to equipment, drum have employed suspension type flexible stent, can reduce additional stress.
A kind of flue type waste heat boiler of the present invention, its beneficial effect is: overall structure is simple, sealing, good purification, reduction waste heat boiler maintenance cost, prolongation waste heat boiler service life.
Accompanying drawing explanation
In order to make content of the present invention more easily be clearly understood, below according to specific embodiment also by reference to the accompanying drawings, the present invention is further detailed explanation.
Fig. 1 is structural representation of the present invention.
Fig. 2 is purifier structural representation.
Wherein: 1-flue collector, 2-bypass flue, 3-purifier, 4-by-pass damper, 5-master shield, 6-flue damper, 7-cantilever frame, 8-expansion joint, 9-nanometer titanium dioxide coating woven wire, the nano titanium dioxide porous particle of 10-, 11-activated charcoal strainer, 12-superheater, 13-high pressure evaporator, 14-low pressure evaporator, 15-economizer, the main chimney of 16-, 17-chimney bypass, 18-drum.
Detailed description of the invention
As Fig. 1, shown in Fig. 2, a kind of flue type waste heat boiler, comprise flue gas system, superheater, high pressure evaporator, low pressure evaporator, economizer, main chimney, scaffold, described superheater, high pressure evaporator, low pressure evaporator, economizer, main chimney is connected by flue from the bottom up and is fixed on scaffold, it is outside that described drum is fixed on described scaffold, described flue gas system comprises flue collector and is arranged on the bypass flue of described flue collector mouth, described flue collector porch is provided with master shield, flue damper is provided with below described chimney, by-pass damper is provided with below described bypass flue chimney, above-mentioned three baffle plates are the baffle plate of double-layer shutter type or " eight " word closure or openness, each baffle plate rear is provided with purifier, described flue collector and described bypass flue are equipped with expansion joint.
Described purifier comprises the active carbon filter screen of bottom, is two-layer nanometer titanium dioxide coating woven wire, is filled with nano titanium dioxide porous particle between described nanometer titanium dioxide coating woven wire above described active carbon filter screen.
The inwall that described flue contacts with high-temperature flue gas is heat-resisting alloy steel plate, and its outer wall is charcoal steel plate, is mineral fibres heat-insulation layer between described flue inner wall and outer wall.
Be provided with the cantilever frame stretched out outside the scaffold of fixing described economizer, described drum is suspended on described cantilever frame, makes described drum have enough flexibility.
During described flue type waste heat boiler work, master shield is opened, flue damper and by-pass damper are closed, the high-temperature flue gas produced from stove enters described flue type waste heat boiler from flue collector through first purifier, last purifier again after flue damper, discharges from main chimney after double purification.Enter the flue gas of described flue type waste heat boiler after purifier, eliminate dust, harmful substance contained in flue gas, decrease the damage to described waste heat boiler, the maintenance work of later stage boiler is alleviated, reduce the cost of enterprise, extend the service life of boiler.
The foregoing is only preferred version of the present invention, not as limitation of the invention further, every various equivalence changes utilizing description of the present invention and accompanying drawing content to do are all within protection scope of the present invention.
Claims (6)
1. a flue type waste heat boiler, comprise flue gas system, superheater, high pressure evaporator, low pressure evaporator, economizer, main chimney, scaffold, described superheater, high pressure evaporator, low pressure evaporator, economizer, main chimney is connected by flue from the bottom up and is fixed on scaffold, it is outside that described drum is fixed on described scaffold, described flue gas system comprises flue collector and is arranged on the bypass flue of described flue collector mouth, it is characterized in that, described flue collector porch is provided with master shield, flue damper is provided with below described main chimney, by-pass damper is provided with below the chimney of described bypass flue, each baffle plate rear is provided with purifier.
2. a kind of flue type waste heat boiler according to claim 1, it is characterized in that, described purifier comprises the active carbon filter screen of bottom, be two-layer nanometer titanium dioxide coating woven wire above described active carbon filter screen, between described nanometer titanium dioxide coating woven wire, be filled with nano titanium dioxide porous particle.
3. a kind of flue type waste heat boiler according to claim 2, is characterized in that, described master shield, by-pass damper and flue damper are dual-layered baffle plate, in louvered or " eight " word formula opened/closed.
4. a kind of flue type waste heat boiler according to claim 3, is characterized in that, described flue inner wall is heat-resisting alloy steel plate, and its outer wall is charcoal steel plate, is mineral fibres heat-insulation layer between described flue inner wall and outer wall.
5. a kind of flue type waste heat boiler according to any one of claim 4, is characterized in that, described flue collector and described bypass flue are provided with expansion joint.
6. a kind of flue type waste heat boiler according to any one of claim 1-5, is characterized in that, be provided with the cantilever frame stretched out outside the scaffold of fixing described economizer, described drum is suspended on described cantilever frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510772217.9A CN105258145A (en) | 2015-11-13 | 2015-11-13 | Flue type waste heat boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510772217.9A CN105258145A (en) | 2015-11-13 | 2015-11-13 | Flue type waste heat boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105258145A true CN105258145A (en) | 2016-01-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510772217.9A Pending CN105258145A (en) | 2015-11-13 | 2015-11-13 | Flue type waste heat boiler |
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| CN (1) | CN105258145A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105986128A (en) * | 2016-07-05 | 2016-10-05 | 中国恩菲工程技术有限公司 | Thermal state copper and sulfur blowing device |
| CN113217903A (en) * | 2021-05-12 | 2021-08-06 | 张晓辉 | Novel coal economizer |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001041663A (en) * | 1999-08-02 | 2001-02-16 | Sumitomo Metal Mining Co Ltd | Waste gas temperature adjusting method in inlet port of dust collector and waste heat recovery boiler employed for the method |
| CN101349511A (en) * | 2008-09-04 | 2009-01-21 | 北京博奇电力科技有限公司 | Flue gas waste heat recovery method and apparatus for ferroalloy cluster electric stove |
| CN205208597U (en) * | 2015-11-13 | 2016-05-04 | 江苏绿叶锅炉有限公司 | Flue type waste heat boiler |
-
2015
- 2015-11-13 CN CN201510772217.9A patent/CN105258145A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001041663A (en) * | 1999-08-02 | 2001-02-16 | Sumitomo Metal Mining Co Ltd | Waste gas temperature adjusting method in inlet port of dust collector and waste heat recovery boiler employed for the method |
| CN101349511A (en) * | 2008-09-04 | 2009-01-21 | 北京博奇电力科技有限公司 | Flue gas waste heat recovery method and apparatus for ferroalloy cluster electric stove |
| CN205208597U (en) * | 2015-11-13 | 2016-05-04 | 江苏绿叶锅炉有限公司 | Flue type waste heat boiler |
Non-Patent Citations (1)
| Title |
|---|
| 王为术等: "《节能与节能技术》", 31 August 2012, 中国水利水电出版社 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105986128A (en) * | 2016-07-05 | 2016-10-05 | 中国恩菲工程技术有限公司 | Thermal state copper and sulfur blowing device |
| CN113217903A (en) * | 2021-05-12 | 2021-08-06 | 张晓辉 | Novel coal economizer |
| CN113217903B (en) * | 2021-05-12 | 2022-11-11 | 河北建滔能源发展有限公司 | Coal economizer |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160120 |
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| RJ01 | Rejection of invention patent application after publication |