CN108036298A - A kind of garbage burning boiler steam reheat system - Google Patents
A kind of garbage burning boiler steam reheat system Download PDFInfo
- Publication number
- CN108036298A CN108036298A CN201711396390.9A CN201711396390A CN108036298A CN 108036298 A CN108036298 A CN 108036298A CN 201711396390 A CN201711396390 A CN 201711396390A CN 108036298 A CN108036298 A CN 108036298A
- Authority
- CN
- China
- Prior art keywords
- reheater
- high temperature
- temperature reheater
- superheater
- flue
- 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
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B31/00—Modifications of boiler construction, or of tube systems, dependent on installation of combustion apparatus; Arrangements of dispositions of combustion apparatus
- F22B31/08—Installation of heat-exchange apparatus or of means in boilers for heating air supplied for combustion
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22G—SUPERHEATING OF STEAM
- F22G3/00—Steam superheaters characterised by constructional features; Details of component parts thereof
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22G—SUPERHEATING OF STEAM
- F22G5/00—Controlling superheat temperature
- F22G5/12—Controlling superheat temperature by attemperating the superheated steam, e.g. by injected water sprays
- F22G5/123—Water injection apparatus
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
- F23G5/02—Incineration of waste; Incinerator constructions; Details, accessories or control therefor with pretreatment
- F23G5/027—Incineration of waste; Incinerator constructions; Details, accessories or control therefor with pretreatment pyrolising or gasifying stage
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
- F23G5/44—Details; Accessories
Abstract
To solve the above problems, the present invention provides a kind of garbage burning boiler reheater system, due to adding high temperature reheater and low-temperature reheater, and the high temperature reheater and low-temperature reheater are arranged apart, in order to improve the flue gas environment residing for high temperature reheater, high temperature corrosion is reduced, after high temperature reheater is arranged in horizontal flue three-stagesuperheater, before two-stage superheater.To reduce boiler total length, low-temperature reheater is arranged in the 3rd vertical gas pass, it so can not only ensure that waste heat boiler main steam temperature is improved to 450 480 DEG C, reheat steam temperature is up to 400 450 DEG C, can also be improved the security reliability of reheater and the heat exchange efficiency of boiler, excessive superheater area need not be increased, the cost of investment and floor space of boiler is reduced, can effectively solve prior art problem.
Description
Technical field
It is heated equipment, more particularly to a kind of garbage burning boiler steam reheat system the present invention relates to waste incinerator.
Background technology
In view of compared with the technologies of garbage disposal such as sanitary landfills, compost, incineration treatment technology is bright with volume reduction, weight loss effect
Aobvious, innoxious thoroughly and floor space is small, and in addition waste heat can be used for heat supply or power generation, and it is excellent that secondary pollution is less and controllable etc.
Point, has been increasingly becoming the mainstream technology of China's urban garbage disposal.
However, due to containing substantial amounts of Cl elements in rubbish, it can produce the etchant gases such as HCl, Cl2 and other after burning
Corrosivity chloride, corrodes boiler high temperature heating surface, and this corrosion phenomenon can with the raising of boiler main steam condition and more
Adding seriously, influences the safe and stable operation and economic benefit of power plant.Therefore, in order to avoid corrosion section, at present more than waste incineration
The main steam condition of heat boiler is mostly 4.0MPa/400 DEG C and 6.5MPa/450 DEG C, and plant thermal efficiency is still universal relatively low.As incited somebody to action
The steam parameter of garbage burning boiler is improved to 9.8MPa/500 DEG C, and the thermal efficiency of power plant can be improved to 28%, greatly increase receipts
Benefit, but for current garbage burning boiler, boiler high temperature heating surface will bear the risk of heavy corrosion, even if taking spy
Other anti-corrosion measure, the cost paid are also extremely expensive, are financially infeasible.
Chinese patent CN201620633802.0 discloses a kind of high parameter garbage burning boiler with reheating, it is in high temperature
Double reheating device is arranged before superheater, and using spraying or using anti-corrosion material, reheated steam is heated to 450 DEG C, to improve
Plant thermal efficiency, increases economy of power plant benefit.But it has following potential problems：1st, since reheated steam cooling capacity is weaker,
Before double reheating device is arranged in high temperature superheater, reheater can be made to be subject to serious high temperature in higher flue-gas temperature environment
Corrosion, even if using spraying or using anti-corrosion material, cost is also more high, and service life can not also ensure；2nd, double reheating
Before device is all arranged in high temperature superheater, reheated steam is heated to 450 DEG C, the temperature and pressure between flue gas and superheater steam can be caused to contract
It is small, reduce heat transfer efficiency.To ensure main steam temperature, when design, need to arrange more superheater areas, will so carry significantly
The cost of investment of high garbage burning boiler.
The content of the invention
To solve the above problems, the present invention provides a kind of garbage burning boiler reheater system, due to adding high temperature reheating
Device and low-temperature reheater, the high temperature reheater and low-temperature reheater are arranged apart, in order to improve the cigarette residing for high temperature reheater
Compression ring border, reduces high temperature corrosion, after high temperature reheater is arranged in horizontal flue three-stagesuperheater, before two-stage superheater.
To reduce boiler total length, low-temperature reheater is arranged in the 3rd vertical gas pass, so can not only ensure the main steaming of waste heat boiler
Stripping temperature is improved to 450-480 DEG C, and reheat steam temperature reaches 400-450 DEG C, can also make the security reliability and pot of reheater
The heat exchange efficiency of stove is improved, and without increasing excessive superheater area, reduces the cost of investment and floor space of boiler.Can
Effectively to solve prior art problem.
It is a kind of garbage burning boiler superheater system, mainly including stove that the present invention, which solves technical problem and provides scheme,
Row, burner hearth, flue and thermoreceptor, the fire grate include dryer section, pyrolysis section, burning zone, after-flame section, and the flue includes successively
First vertical gas pass, the second vertical gas pass, the 3rd vertical gas pass and horizontal flue, the thermoreceptor include level-one evaporator, three
Level superheater, two-stage superheater, primary superheater, secondary evaporimeter and economizer group,
It is characterized in that also adding high temperature reheater and low-temperature reheater, the high temperature reheater and low-temperature reheater separate
Arrangement, the high temperature reheater is arranged in horizontal flue after the three-stagesuperheater, before two-stage superheater, described
Low-temperature reheater is arranged in the 3rd vertical gas pass.
The preferred solution of the present invention, the first vertical gas pass of boiler top, the ceiling area of the first to the second flue, Yi Ji
Two flue tops use 625 built-up welding anti-corrosions of Inconel.
The preferred solution of the present invention, direct-contact desuperheater is arranged between primary superheater and two-stage superheater, controls main steaming
Stripping temperature.
The preferred solution of the present invention, direct-contact desuperheater is arranged between two-stage superheater and three-stagesuperheater, controls main steaming
Stripping temperature.
The preferred solution of the present invention, arranges direct-contact desuperheater between low-temperature reheater and high temperature reheater, controls reheating
Vapor (steam) temperature.
The preferred solution of the present invention, the three-stagesuperheater, two-stage superheater, primary superheater are exchanged heat using coiled pipe
Device.
Beneficial effects of the present invention：The present invention proposes a kind of garbage burning boiler steam reheat system, due to adding high temperature
Reheater and low-temperature reheater, and the high temperature reheater and low-temperature reheater are arranged apart, in order to improve high temperature reheater
Residing flue gas environment, reduce high temperature corrosion, by high temperature reheater be arranged in horizontal flue be located at three-stagesuperheater after, two
Before level superheater.To reduce boiler total length, low-temperature reheater is arranged in the 3rd vertical gas pass, so can not only be ensured
Waste heat boiler main steam temperature is improved to 450-480 DEG C, and reheat steam temperature reaches 400-450 DEG C, can also make the peace of reheater
The heat exchange efficiency of full reliability and boiler is improved, and without increasing excessive superheater area, reduces the cost of investment of boiler
And floor space.
Brief description of the drawings
Fig. 1 is the structure arrangement schematic diagram of one embodiment proposed by the present invention.
In figure：
1 furnace body,
1.1 garbage inlets,
1.2 fire grates, 1.21 dryer sections, 1.22 pyrolysis sections, 1.23 burning zones, 1.24 after-flame sections,
1.3 ash ports,
1.4 flue gases,
1.5 burner hearths,
1.6A First airs, 1.6B Secondary Airs,
At 1.7 burner hearth aditus laryngis；
2 flues, 2.11 first vertical gas passes, 2.12 second vertical gas passes, 2.13 the 3rd vertical gas passes；2.2 horizontal flue；
3 thermoreceptors, 3.1 level-one evaporators, 3.2 three-stagesuperheaters, 3.3 two-stage superheaters, 3.4 primary superheaters, 3.5 2
Level evaporator, 3.6 economizers, 3.71 high temperature reheaters, 3.72 low-temperature reheaters；
4.1 first direct-contact desuperheaters, 4.2 second direct-contact desuperheaters, 4.3 the 3rd direct-contact desuperheaters.
Embodiment
Fig. 1 is the structure arrangement schematic diagram of one embodiment proposed by the present invention.Shown in figure, a kind of garbage burning boiler
Superheater system, main to include fire grate 1.2, burner hearth 1.5,2 flues and thermoreceptor 3, fire grate 1.2 includes dryer section 1.21, pyrolysis
Section 1.22, burning zone 1.23, after-flame section 1.24, flue 2 include the first vertical gas pass 2.11, the second vertical gas pass 2.12 successively,
3rd vertical gas pass 2.13 and horizontal flue 2.2, thermoreceptor 3 include level-one evaporator 3.1, three-stagesuperheater 3.2, secondary superheater
Device 3.3, primary superheater 3.4, secondary evaporimeter 3.5 and economizer group 3.6, along flow of flue gas direction in horizontal flue 2.2
It is sequentially arranged level-one evaporator 3.1, three-stagesuperheater 3.2, two-stage superheater 3.3, primary superheater 3.4, secondary evaporimeter 3.5
With economizer group 3.6.
Shown in Fig. 1, furnace body 1 mainly includes fire grate 1.2, garbage inlet 1.1, ash port 1.3 and burner hearth 1.5, fire grate 1.2
It is divided into dryer section 1.21,1.24 four-stage of pyrolysis section 1.22, burning zone 1.23 and after-flame section, in dryer section 1.21, pyrolysis section
1.22nd, burning zone 1.23 and the downside of after-flame section 1.24 are respectively connected to First air 1.6A and play combustion-supporting effect.
Shown in figure, in this example, also add high temperature reheater 3.71 and low-temperature reheater 3.72, high temperature reheater 3.71 with
Low-temperature reheater 3.72 is arranged apart, high temperature reheater 3.71 be arranged in horizontal flue 2.2 positioned at three-stagesuperheater 3.2 it
Afterwards, before two-stage superheater 3.3, low-temperature reheater 3.72 is arranged in the 3rd vertical gas pass 2.13.
In the present invention, the first vertical gas pass of boiler top, the ceiling area of the first to the second flue, and the second flue
Top uses 625 built-up welding anti-corrosions of Inconel.
Shown in figure, the first direct-contact desuperheater 4.1 is arranged between primary superheater 3.4 and two-stage superheater 3.3, controlled
Main steam temperature.
The second direct-contact desuperheater 4.2 is arranged between two-stage superheater 3.3 and three-stagesuperheater 3.2, controls main steam temperature
Degree.
The 3rd direct-contact desuperheater 4.3 is arranged between low-temperature reheater 3.72 and high temperature reheater 3.71, control reheating is steamed
Stripping temperature.
In the present invention, three-stagesuperheater, two-stage superheater, primary superheater use coil heat exchanger.
In the present invention, high temperature reheater uses currently used coiled pipe structure, counter-flow arrangement, and material is also
SA213T12, without spraying or other extra anti-corrosion measures, cost of reducing investment outlay.In low-temperature reheater and high temperature reheater
Between arrange direct-contact desuperheater, control reheat steam temperature.
Low-temperature reheater uses currently used coiled pipe structure, down current arrangement, and material is also SA213T12；Cold reheat
Device is arranged using big transverse pitch, reduces dust stratification risk, while arranges ash removing equipment, as horizontal flue entrance flue gas temperature
Regulating measure, ensures the safety of high temperature superheater.
The present invention proposes a kind of garbage burning boiler steam reheat system, due to adding high temperature reheater and cold reheat
Device, and the high temperature reheater and low-temperature reheater are arranged apart, in order to improve the flue gas environment residing for high temperature reheater, subtract
Few high temperature corrosion, high temperature reheater is arranged in after horizontal flue high temperature superheater.To reduce boiler total length, by low temperature again
Hot device is arranged in the 3rd vertical gas pass, so can not only ensure that waste heat boiler main steam temperature is improved to 450-480 DEG C, reheating
Vapor (steam) temperature reaches 400-450 DEG C, can also be improved the security reliability of reheater and the heat exchange efficiency of boiler, without increasing
Add excessive superheater area, reduce the cost of investment and floor space of boiler.
Claims (6)
- A kind of 1. garbage burning boiler steam reheat system, mainly including fire grate, burner hearth, flue and thermoreceptor, the fire grate bag Including dryer section, pyrolysis section, burning zone, after-flame section, the flue includes the first vertical gas pass, the second vertical gas pass successively, and the 3rd Vertical gas pass and horizontal flue, the thermoreceptor include level-one evaporator, three-stagesuperheater, two-stage superheater, primary superheater, Secondary evaporimeter and economizer group,It is characterized in that also adding high temperature reheater and low-temperature reheater, the high temperature reheater and low-temperature reheater are arranged apart, The high temperature reheater is arranged in horizontal flue after the three-stagesuperheater, before two-stage superheater, the low temperature Reheater is arranged in the 3rd vertical gas pass.
- 2. a kind of garbage burning boiler steam reheat system according to claim 1, it is characterized in that, the first vertical cigarette of boiler Road top, the ceiling area of the first to the second flue, and the second flue top use 625 built-up welding anti-corrosions of Inconel.
- 3. a kind of garbage burning boiler steam reheat system according to claim 1, it is characterized in that, primary superheater with Direct-contact desuperheater is arranged between two-stage superheater, controls main steam temperature.
- 4. a kind of garbage burning boiler steam reheat system according to claim 1, it is characterized in that, two-stage superheater with Direct-contact desuperheater is arranged between three-stagesuperheater, controls main steam temperature.
- 5. a kind of garbage burning boiler steam reheat system according to claim 1, it is characterized in that, low-temperature reheater with Direct-contact desuperheater is arranged between high temperature reheater, controls reheat steam temperature.
- 6. a kind of garbage burning boiler steam reheat system according to claim 1, it is characterized in that, the three-level overheat Device, two-stage superheater, primary superheater use coil heat exchanger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711396390.9A CN108036298A (en) | 2017-12-21 | 2017-12-21 | A kind of garbage burning boiler steam reheat system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711396390.9A CN108036298A (en) | 2017-12-21 | 2017-12-21 | A kind of garbage burning boiler steam reheat system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108036298A true CN108036298A (en) | 2018-05-15 |
Family
ID=62100504
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711396390.9A Pending CN108036298A (en) | 2017-12-21 | 2017-12-21 | A kind of garbage burning boiler steam reheat system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108036298A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019119384A1 (en) * | 2017-12-21 | 2019-06-27 | 深圳市能源环保有限公司 | Steam reheating system for rubbish incineration furnace |
| CN110043888A (en) * | 2019-05-07 | 2019-07-23 | 哈尔滨锅炉厂有限责任公司 | Rubbish reheat boiler and the method for carrying out reheating |
| WO2020140337A1 (en) * | 2018-12-30 | 2020-07-09 | 上海康恒环境股份有限公司 | High-temperature high-pressure waste incinerator |
| CN113513747A (en) * | 2021-06-03 | 2021-10-19 | 江联重工集团股份有限公司 | External reheat steam heating system of waste incineration exhaust-heat boiler |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000146139A (en) * | 1998-08-20 | 2000-05-26 | Asea Brown Boveri Ag | Steam generator generating superheated steam for incineration facility using corrosive flue gas |
| EP1985918A2 (en) * | 2006-10-13 | 2008-10-29 | Hitachi Power Europe GmbH | Vertical single-pass boiler with flue gas damper |
| CN102128443A (en) * | 2011-03-08 | 2011-07-20 | 中国华能集团清洁能源技术研究院有限公司 | Pulverized coal boiler suitable for ultrahigh steam temperature |
| CN202884875U (en) * | 2012-10-18 | 2013-04-17 | 清华大学 | Boiler flue structure |
| CN103776015A (en) * | 2014-02-26 | 2014-05-07 | 章礼道 | Semi-tower three-flue double-damper added jet flow flue gas recirculation secondary reheating power station boiler |
| CN204739576U (en) * | 2015-06-18 | 2015-11-04 | 无锡华光锅炉股份有限公司 | Reheat pulverized coal boiler |
| CN105937758A (en) * | 2016-06-14 | 2016-09-14 | 廖洁芬 | Biomass direct-fired fire grate boiler |
| CN105953231A (en) * | 2016-06-24 | 2016-09-21 | 无锡华光锅炉股份有限公司 | High-parameter waste incineration boiler with reheating function |
| CN207688100U (en) * | 2017-12-21 | 2018-08-03 | 深圳市能源环保有限公司 | A kind of garbage burning boiler steam reheat system |
-
2017
- 2017-12-21 CN CN201711396390.9A patent/CN108036298A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000146139A (en) * | 1998-08-20 | 2000-05-26 | Asea Brown Boveri Ag | Steam generator generating superheated steam for incineration facility using corrosive flue gas |
| EP1985918A2 (en) * | 2006-10-13 | 2008-10-29 | Hitachi Power Europe GmbH | Vertical single-pass boiler with flue gas damper |
| CN102128443A (en) * | 2011-03-08 | 2011-07-20 | 中国华能集团清洁能源技术研究院有限公司 | Pulverized coal boiler suitable for ultrahigh steam temperature |
| CN202884875U (en) * | 2012-10-18 | 2013-04-17 | 清华大学 | Boiler flue structure |
| CN103776015A (en) * | 2014-02-26 | 2014-05-07 | 章礼道 | Semi-tower three-flue double-damper added jet flow flue gas recirculation secondary reheating power station boiler |
| CN204739576U (en) * | 2015-06-18 | 2015-11-04 | 无锡华光锅炉股份有限公司 | Reheat pulverized coal boiler |
| CN105937758A (en) * | 2016-06-14 | 2016-09-14 | 廖洁芬 | Biomass direct-fired fire grate boiler |
| CN105953231A (en) * | 2016-06-24 | 2016-09-21 | 无锡华光锅炉股份有限公司 | High-parameter waste incineration boiler with reheating function |
| CN207688100U (en) * | 2017-12-21 | 2018-08-03 | 深圳市能源环保有限公司 | A kind of garbage burning boiler steam reheat system |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019119384A1 (en) * | 2017-12-21 | 2019-06-27 | 深圳市能源环保有限公司 | Steam reheating system for rubbish incineration furnace |
| WO2020140337A1 (en) * | 2018-12-30 | 2020-07-09 | 上海康恒环境股份有限公司 | High-temperature high-pressure waste incinerator |
| CN110043888A (en) * | 2019-05-07 | 2019-07-23 | 哈尔滨锅炉厂有限责任公司 | Rubbish reheat boiler and the method for carrying out reheating |
| CN113513747A (en) * | 2021-06-03 | 2021-10-19 | 江联重工集团股份有限公司 | External reheat steam heating system of waste incineration exhaust-heat boiler |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102889570B (en) | Tower-type boiler with primary reheater and secondary reheater | |
| CN207688100U (en) | A kind of garbage burning boiler steam reheat system | |
| CN106439855B (en) | A kind of steam air pre-heating system of garbage burning boiler | |
| CN108036298A (en) | A kind of garbage burning boiler steam reheat system | |
| CN103591575B (en) | 350MW supercritical circulating fluidized bed boiler and steam/water circulating method | |
| CN105953231B (en) | A kind of high parameter garbage burning boiler with reheating | |
| CN205717146U (en) | A kind of ultrahigh pressure coal gas boiler | |
| CN108775573A (en) | A kind of novel electricity generation boiler of burning away the refuse | |
| CN103344124A (en) | Lime kiln waste gas waste heat electricity generating system with by-product coal gas afterburning function | |
| CN110220198A (en) | A kind of high temperature and pressure waste incineration horizontal boiler | |
| CN110220182A (en) | A kind of biomass direct-fired energy-saving circulating fluidized bed superhigh-pressure high-temp reheated steam boiler | |
| CN109611852A (en) | A kind of device adjusting garbage burning boiler reheater steam temperature by flue gas recirculation | |
| CN207514899U (en) | A kind of super-pressure reheat vapor cycle fluidized-bed combustion boiler of burning-used biologic mass fuel | |
| CN105953217B (en) | The 1000MW ultra supercritical double reheat boilers of high reheat steam temperature wide regulating ratio | |
| CN107559804A (en) | A kind of garbage burning boiler superheater system | |
| CN102913892B (en) | T-shaped boiler with reheater | |
| CN111520696A (en) | Exhaust-heat boiler arrangement structure burning high-calorific-value garbage | |
| CN108006664A (en) | A kind of reversible type refuse incineration exhaust-heating boiler superheater | |
| CN207378803U (en) | A kind of garbage burning boiler superheater system | |
| CN209978041U (en) | High-temperature high-pressure waste incineration boiler | |
| CN110360569A (en) | A kind of high temperature and pressure garbage burning boiler | |
| CN103528047B (en) | A kind of steam soot blowing for the tower direct current cooker in thermal power plant regulates the method for reheat steam temperature | |
| CN203656913U (en) | 350MW supercritical circulating fluidized bed boiler | |
| CN205878138U (en) | Wide turndown ratio's of high reheat steam temperature 1000MW ultra supercritical double reheat boiler | |
| CN202791953U (en) | Water pipe type condensation superheating steam generator |
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 | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180515 |
|
| WD01 | Invention patent application deemed withdrawn after publication |