CN106287683A - Circulating fluid-bed coal-burning boiler coal economizer energy-conserving reconstruction method - Google Patents
Circulating fluid-bed coal-burning boiler coal economizer energy-conserving reconstruction method Download PDFInfo
- Publication number
- CN106287683A CN106287683A CN201610775037.0A CN201610775037A CN106287683A CN 106287683 A CN106287683 A CN 106287683A CN 201610775037 A CN201610775037 A CN 201610775037A CN 106287683 A CN106287683 A CN 106287683A
- Authority
- CN
- China
- Prior art keywords
- economizer
- tubes
- membrane
- subordinate
- higher level
- 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.)
- Granted
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN A CARRIER GAS OR AIR
- F23C10/00—Fluidised bed combustion apparatus
- F23C10/18—Details; Accessories
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22D—PREHEATING, OR ACCUMULATING PREHEATED, FEED-WATER FOR STEAM GENERATION; FEED-WATER SUPPLY FOR STEAM GENERATION; CONTROLLING WATER LEVEL FOR STEAM GENERATION; AUXILIARY DEVICES FOR PROMOTING WATER CIRCULATION WITHIN STEAM BOILERS
- F22D1/00—Feed-water heaters, i.e. economisers or like preheaters
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Fluidized-Bed Combustion And Resonant Combustion (AREA)
Abstract
The invention discloses circulating fluid-bed coal-burning boiler coal economizer energy-conserving reconstruction method, economizer includes higher level's economizer, SCR catalyst structure and the subordinate's economizer being connected to from top to bottom in boiler, higher level's economizer is provided with higher level's economizer exit header and upper the Tubes of Membrane Economizer, subordinate's economizer is provided with subordinate's economizer import header and lower the Tubes of Membrane Economizer, the transformation of economizer power-economizing method at least comprise the steps: A. by higher level's economizer and subordinate's economizer the most upwards, move down；B. the upper the Tubes of Membrane Economizer of cutting；C. set up subordinate's economizer exit header and higher level's economizer import header, subordinate's economizer exit header and higher level's economizer import header are connected on the water route of higher level's economizer and subordinate's economizer by pipeline one and pipeline two simultaneously；After above-mentioned technological improvement completes, carry out Hydrostatic test.The boiler Nox that reduces of economizer energy-conserving reconstruction method of the present invention discharges, and decreases environmental pollution, adapts to current environmental requirement.
Description
Technical field
The present invention relates to 75t/h circulating fluidized bed combustion coal boiler economizer energy saving retrofit technology field, particularly relate to follow
Ring vulcanization bed coal-burning boiler coal economizer energy-conserving reconstruction method.
Background technology
Technology of Circulating Fluidized Bed Boiler is the high-efficiency low-pollution cleaning burning branch art developed rapidly in recent ten years.State
On border, this technology has obtained widespread commercial use in fields such as station boiler, Industrial Boiler and offal treatment utilizations, and
Develop to the large circulating fluidized bed boiler of hundreds of thousands multikilowatt scale；Domestic research in this respect, development and application also by
Gradually rise, among existing up to a hundred CFBBs have put into operation or manufactured.
Boiler uses single drum, natural circulation mode, is divided into front portion and two vertical shafts of afterbody generally.Anterior vertical shaft is total
Hanging structure, surrounding is made up of fin panel casing.From bottom to top, being followed successively by air compartment, emulsion zone, a dilute-phase zone, back-end ductwork is certainly
Upper and under be followed successively by high temperature superheater, low temperature superheater and economizer, air preheater.Tail vertical well employing supporting construction, two
Being connected by vertical cyclone separator between vertical shaft, separator bottom couples loop back device and ash cooler.Combustor and separation
Being equipped with abrasionproof liner inside device, anterior vertical shaft tube, external metal casing, tail vertical well light boiler setting, by eight
Root steel column bears boiler total weight.
Boiler uses ignition under bed (oil or coal gas), fractional combustion, and First air ratio accounts for 50 60%, and flying dust circulation is for low
Multiplying power, middle temperature separates lime-ash discharge and uses dry type, discharged by water-cooling spiral tapping machine, ash cooler and dust collector ash hopper respectively.
Burner hearth is to ensure that the key of full combustion of fuel, uses turbulent bed so that fluidizing velocity is at 3.5 4.5m/s, and designs suitably
Section of burner hearth, burner hearth membrane wall pipe is laid thin liner (High-Alumina brick), even if during boiler combustion different fuel, burning
Efficiency is also held in 98 more than 99%.
High-temperature separator inlet flue gas temperature is at about 800 DEG C, and cyclone cylinder internal diameter is less, structure simplify, only need in cylinder one layer thin
Thin abrasionproof liner (nitridation silica brick).Its service life is longer.Circulating ratio is about 10 20.
Circulating ash induction system is mainly by feed back pipe, loop back device, and a few part such as overflow pipe and ash cooler forms.
The regulation process of bed temperature control system is automatic.Concentrated phase bed bed temperature is remained in the range of whole load variations
A certain steady state value between 850-950 DEG C, this value is optimal desulfurization temperature.When automatically control do not put into time, armrest is dynamic also can
Maintain constant bed temperature.
Protection environment, saves the problem that the energy is every country long-run development overriding concern, and CFBB is just
Grow up based on this point, its high reliability, high stability, high availability, optimal environmental protection characteristic and widely
Fuel tolerance, particularly the adaptability to inferior fuel, increasingly receives significant attention, entirely appropriate China's national situation and development
Advantage.But existing 75t/h circulating fluidized bed combustion coal boiler, there is Nox and discharges the problems such as higher, be not inconsistent in boiler after putting into operation
Close relevant environment protection index and requirement, so needing to make improvements.
Summary of the invention
In order to overcome above-mentioned the deficiencies in the prior art, the invention provides as reducing boiler Nox discharge, reduce environment dirty
Dye, adapts to current environmental requirement, it is necessary to boiler installs additional the technological transformation of SCR denitration.
The technical solution adopted in the present invention is: circulating fluid-bed coal-burning boiler coal economizer energy-conserving reconstruction method, economizer
Including the higher level's economizer being connected to from top to bottom in boiler, SCR catalyst structure and subordinate's economizer, higher level's economizer sets
Having higher level's economizer exit header and upper the Tubes of Membrane Economizer, subordinate's economizer is provided with subordinate's economizer import header and lower film
Formula economizer tube, the transformation of economizer power-economizing method at least comprises the steps:
A. by higher level's economizer and subordinate's economizer the most upwards, move down: by higher level's economizer exit of higher level's economizer
Header and upper the Tubes of Membrane Economizer are lifted on the whole, subordinate's economizer import header and the lower membrane type of subordinate's economizer are saved coal simultaneously
Device pipe entirety moves down；
B. the upper the Tubes of Membrane Economizer of cutting: the longitudinal direction of upper the Tubes of Membrane Economizer is cut off some rows and moves on to lower the Tubes of Membrane Economizer
Top, and the header the most corresponding with upper the Tubes of Membrane Economizer and lower the Tubes of Membrane Economizer after cutting is connected, change
Upper the Tubes of Membrane Economizer longitudinal direction 15-22 row after making, lower the Tubes of Membrane Economizer longitudinal direction 45-38 is arranged, it is ensured that economizer always longitudinal row
60 rows are constant；
C. subordinate's economizer exit header and higher level's economizer import header are set up, simultaneously by subordinate's economizer exit header and upper
Level economizer import header is connected on the water route of higher level's economizer and subordinate's economizer by pipeline one and pipeline two；
After above-mentioned technological improvement completes, carry out Hydrostatic test, the economizer of transformation, economizer pipeline and relevant weld mutually
After part installs, carry out boiler Hydrostatic test, with the manufacture of final inspection pressure-containing member, erecting and welding quality, material
Quality or residual deformation situation, and finally eliminate defect processing；After the water pressure test is qualified, insulation of wall construction can be carried out.
Further, the detailed step of Hydrostatic test is as follows:
(1) pressure of the water pressure test is 1.25 times of boiler drum pressure；
(2) water pressure test temperature requirement
During the water pressure test, ambient air temperature otherwise should should have antifreezing measures more than 5 DEG C, and test water temperature answers >=15 DEG C,
Or dew point temperature, but must not be higher than 70 DEG C；
(3) work pressure test only made by boiler drum water level table, is not involved in overvoltage test, and relief valve is not involved in hydraulic boiler set；
(4) water should be drained after the drum water pressure test, especially after hydraulic pressure to ignition trigger interval time longer time, need to be soda pop
Internal system carry out anti-corrosion measure.
Further, SCR catalyst structure peripheral is additionally provided with platform staircase, during reducing energy consumption, should be catalyzed at SCR
Platform staircase is transformed before installing by agent structure, formation path, and the danger that minimizing personnel may fall must to the platform installed
Enough safe installing spaces must be left to prevent from occurring unexpectedly.
Further, upper the Tubes of Membrane Economizer and lower the Tubes of Membrane Economizer connect it certainly by some comb plate, comb joints are fixing respectively
The pipeline of body.
Further, higher level's economizer, subordinate's economizer, subordinate's economizer exit header and higher level's economizer import header
All it is connected on boiler furnace by fixing device.
Further, step A by higher level's economizer and subordinate's economizer the most upwards, move down: by higher level's economizer
Higher level's economizer exit header and upper the Tubes of Membrane Economizer lift 300-900mm on the whole, simultaneously by the subordinate of subordinate's economizer
Economizer import header and lower the Tubes of Membrane Economizer entirety move down 600-2000mm；
The Tubes of Membrane Economizer in the cutting of step B: the longitudinal direction of upper the Tubes of Membrane Economizer is cut off row and moves on to lower the Tubes of Membrane Economizer
Top, and the header the most corresponding with upper the Tubes of Membrane Economizer and lower the Tubes of Membrane Economizer after cutting is connected, change
Upper the Tubes of Membrane Economizer longitudinally 18 rows after making, lower the Tubes of Membrane Economizer longitudinally 42 rows, it is ensured that economizer always longitudinal row 60 row is not
Become.
Further, step B is time on carrying out, the Tubes of Membrane Economizer is longitudinally cutting, it is ensured that otch distance boiler furnace is installed
Distance is 260mm, and ensures that the fore-and-aft distance between each pipe unit of upper pattern economizer tube is 90mm.
Compared with prior art, the invention has the beneficial effects as follows: the economizer Energy-saving reformation method of the present invention, be to put into
Carry out covering in the equipment Foundations of application, and the aspects such as the design of former boiler, operation have been carried out useful exploration before transforming
With sufficiently summary, to meet user's requirement, reach the technology requirement of the aspect such as safety, energy-saving and environmental protection, improvement cost
Low, the cycle is short, after transformation, reduce boiler Nox discharge, decrease environmental pollution, adapt to current environmental requirement, have preferably
Environmental-protecting performance.
Accompanying drawing explanation
Fig. 1 is the front view of the economizer after 75t/h circulating fluidized bed combustion coal boiler economizer reducing energy consumption；
Fig. 2 is the side view of the embodiment of Fig. 1；
Fig. 3 is the partial enlargement structural representation at the I in Fig. 1；
Fig. 4 is the partial enlargement structural representation at the II in Fig. 2；
Fig. 5 is the close-up schematic view at the III in Fig. 2；
Fig. 6 is the close-up schematic view at the IV in Fig. 2.
Wherein: 1-higher level's economizer, 2-SCR catalyst structure, 3-subordinate economizer, 4-higher level's economizer exit header,
The upper the Tubes of Membrane Economizer of 5-, 51-otch；6-subordinate economizer import header, the Tubes of Membrane Economizer under 7-, 8-subordinate economizer goes out
Mouth header, 9-higher level's economizer import header, 10-pipeline one, 11-pipeline two, 12-platform staircase, 13-comb plate, comb joint, 14-fixes
Device, 15-boiler furnace.
Detailed description of the invention
In order to deepen the understanding of the present invention, the present invention is further described with embodiment below in conjunction with the accompanying drawings, this enforcement
Example is only used for explaining the present invention, does not constitute protection scope of the present invention and limits.
Circulating fluid-bed coal-burning boiler coal economizer energy-conserving reconstruction method, as depicted in figs. 1 and 2, economizer includes from up to
Under the higher level's economizer 1, SCR catalyst structure 2 and the subordinate's economizer 3 that are connected in boiler, higher level's economizer 1 is provided with higher level
Economizer exit header 4 and upper the Tubes of Membrane Economizer 5, subordinate's economizer 3 is provided with subordinate's economizer import header 6 and lower membrane type
Economizer tube 7, the transformation of economizer power-economizing method at least comprises the steps:
A. by higher level's economizer 1 and subordinate's economizer 3 the most upwards, move down, as in figure 2 it is shown: by higher level's economizer 1
Higher level's economizer exit header 4 and upper the Tubes of Membrane Economizer 5 are lifted on the whole, are entered by subordinate's economizer of subordinate's economizer 3 simultaneously
Mouth header 6 and lower the Tubes of Membrane Economizer 7 entirety move down；
B. the upper the Tubes of Membrane Economizer 5 of cutting: the longitudinal direction of upper the Tubes of Membrane Economizer 5 is cut off some rows and moves on to lower the Tubes of Membrane Economizer
The top of 7, and by the header phase the most corresponding with upper the Tubes of Membrane Economizer 5 and lower the Tubes of Membrane Economizer 7 after cutting
Even, upper the Tubes of Membrane Economizer 5 longitudinal 15-22 row after transformation, lower the Tubes of Membrane Economizer 7 longitudinal 45-38 row, it is ensured that economizer is always indulged
To row 60, row is constant；
C. subordinate's economizer exit header 8 and higher level's economizer import header 9 are set up, simultaneously by subordinate's economizer exit header 8
It is connected to higher level's economizer 1 and subordinate's economizer 3 by pipeline 1 and pipeline 2 11 with higher level's economizer import header 9
Water route on, see Fig. 1；
After above-mentioned technological improvement completes, carry out Hydrostatic test, the economizer of transformation, economizer pipeline and relevant weld mutually
After part installs, carry out boiler Hydrostatic test, with the manufacture of final inspection pressure-containing member, erecting and welding quality, material
Quality or residual deformation situation, and finally eliminate defect processing；After the water pressure test is qualified, insulation of wall construction can be carried out.
In the above-described embodiments, the detailed step of Hydrostatic test is as follows:
(1) pressure of the water pressure test is 1.25 times of boiler drum pressure；
(2) water pressure test temperature requirement
During the water pressure test, ambient air temperature otherwise should should have antifreezing measures more than 5 DEG C, and test water temperature answers >=15 DEG C,
Or dew point temperature, but must not be higher than 70 DEG C；
(3) work pressure test only made by boiler drum water level table, is not involved in overvoltage test, and relief valve is not involved in hydraulic boiler set；
(4) water should be drained after the drum water pressure test, especially after hydraulic pressure to ignition trigger interval time longer time, need to be soda pop
Internal system carry out anti-corrosion measure.
In the above-described embodiments, SCR catalyst structure 2 periphery is additionally provided with platform staircase 12, during reducing energy consumption, and should
Being transformed by platform staircase 12 before SCR catalyst structure 2 is installed, form path, the danger that minimizing personnel may fall, to
The platform installed must leave enough safe installing spaces to prevent from occurring unexpectedly.
If from Fig. 1, Fig. 2, Fig. 3 and Fig. 4 it can be seen that upper the Tubes of Membrane Economizer 5 and lower the Tubes of Membrane Economizer 7 pass through respectively
The dry fixing pipeline connecting himself of comb plate, comb joint 13.
In the above-described embodiments, from Fig. 2 and Fig. 5 it can be seen that higher level's economizer 1, subordinate's economizer 3, subordinate save coal
Device outlet header 8 and higher level's economizer import header 9 are all connected on boiler furnace 15 by fixing device 14.
In the above-described embodiments, step A by higher level's economizer 1 and subordinate's economizer 3 the most upwards, move down: by upper
Higher level's economizer exit header 4 of level economizer 1 and upper the Tubes of Membrane Economizer 5 lift 300-900mm on the whole, subordinate are saved simultaneously
Subordinate's economizer import header 6 and lower the Tubes of Membrane Economizer 7 entirety of coal device 3 move down 600-2000mm；Membrane type in the cutting of step B
Economizer tube 5: the longitudinal direction of upper the Tubes of Membrane Economizer 5 is cut off 12 rows and moves on to the top of lower the Tubes of Membrane Economizer 7, and will cutting
After the header the most corresponding with upper the Tubes of Membrane Economizer 5 and lower the Tubes of Membrane Economizer 7 be connected, upper membrane type province coal after transformation
Device pipe 5 longitudinally 18 rows, lower the Tubes of Membrane Economizer 7 longitudinally 42 rows, it is ensured that always longitudinal row 60 row is constant for economizer.As in figure 2 it is shown,
After transformation, economizer saves the preferable embodiment of coal effect is that the height of the upper the Tubes of Membrane Economizer 5 of higher level's economizer 1 is
17*45=765mm, wherein 17 is row, the height of 45 each rows.And the height of the lower the Tubes of Membrane Economizer 7 of subordinate's economizer 3
For 29*45+13*45=1305+585=1890mm, wherein 29 is the row of the subordinate coal saving tube before transformation, and 13 is higher level's economizer
The coal saving tube that pipe moves.
In the above-described embodiments, as shown in Figure 6, step B is time on carrying out, the Tubes of Membrane Economizer 5 is longitudinally cutting, it is ensured that cut
Mouth 51 distance boiler furnace 15 mounting distances are 260mm, and ensure indulging between each pipe unit of upper pattern economizer tube 5
It is 90mm to distance.
Group position, economizer tube is moved by this transformation, though economizer transverse pitch, longitudinal pitch, heating surface area etc.
All do not make and change, but bag wall length (increase 1600mm) variation, and the shift in position of bag wall relatively (economizer import cigarette temperature is slightly
Variation), therefore boiler parameter is carried out thermodynamic computing check:
The economizer Energy-saving reformation method of the present invention, is to carry out covering in the equipment Foundations putting into application, and right before transformation
The aspects such as the design of former boiler, operation have carried out useful exploration and have sufficiently summed up, and to meet user's requirement, reach
The technology requirement of the aspect such as safety, energy-saving and environmental protection, improvement cost is low, the cycle is short, after transformation, reduces boiler Nox discharge,
Decrease environmental pollution, adapt to current environmental requirement, have preferable environmental-protecting performance.
What embodiments of the invention were announced is preferred embodiment, but is not limited thereto, the ordinary skill people of this area
Member, easily according to above-described embodiment, understands the spirit of the present invention, and makes different amplifications and change, but as long as without departing from this
The spirit of invention, the most within the scope of the present invention.
Claims (7)
1. circulating fluid-bed coal-burning boiler coal economizer energy-conserving reconstruction method, it is upper that economizer includes being connected to from top to bottom in boiler
Level economizer (1), SCR catalyst structure (2) and subordinate's economizer (3), described higher level's economizer (1) is provided with higher level's economizer
Outlet header (4) and upper the Tubes of Membrane Economizer (5), described subordinate economizer (3) be provided with subordinate's economizer import header (6) and
Lower the Tubes of Membrane Economizer (7), it is characterised in that: the transformation of economizer power-economizing method at least comprises the steps:
By higher level's economizer (1) and subordinate's economizer (3) the most upwards, move down: the higher level of higher level's economizer (1) is saved coal
Device outlet header (4) and upper the Tubes of Membrane Economizer (5) are lifted on the whole, simultaneously by subordinate's economizer import of subordinate's economizer (3)
Header (6) and lower the Tubes of Membrane Economizer (7) entirety move down；
The Tubes of Membrane Economizer (5) in cutting: the longitudinal direction of upper the Tubes of Membrane Economizer (5) is cut off some rows and moves on to lower Membrane Economizer
The top of pipe (7), and will distinguish the most corresponding with upper the Tubes of Membrane Economizer (5) and lower the Tubes of Membrane Economizer (7) after cutting
Header be connected, upper the Tubes of Membrane Economizer (5) longitudinal 15-22 row after transformation, lower the Tubes of Membrane Economizer (7) longitudinal 45-38 row, protect
Always longitudinal row 60 row is constant for card economizer；
Set up subordinate's economizer exit header (8) and higher level's economizer import header (9), simultaneously by subordinate's economizer exit header
(8) and higher level's economizer import header (9) by pipeline one (10) and pipeline two (11) be connected to higher level's economizer (1) and
On the water route of subordinate's economizer (3)；
After above-mentioned technological improvement completes, carry out Hydrostatic test, the economizer of transformation, economizer pipeline and relevant weld mutually
After part installs, carry out boiler Hydrostatic test, with the manufacture of final inspection pressure-containing member, erecting and welding quality, material
Quality or residual deformation situation, and finally eliminate defect processing；After the water pressure test is qualified, insulation of wall construction can be carried out.
Circulating fluid-bed coal-burning boiler coal economizer energy-conserving reconstruction method the most according to claim 1, it is characterised in that: overall
The detailed step of the water pressure test is as follows:
The pressure of the water pressure test is 1.25 times of boiler drum pressure；
Water pressure test temperature requirement
During the water pressure test, ambient air temperature otherwise should should have antifreezing measures more than 5 DEG C, and test water temperature answers >=15 DEG C,
Or dew point temperature, but must not be higher than 70 DEG C；
Work pressure test only made by boiler drum water level table, is not involved in overvoltage test, and relief valve is not involved in hydraulic boiler set；
Water should be drained after the drum water pressure test, especially after hydraulic pressure to ignition trigger interval time longer time, need to be soda pop
Anti-corrosion measure is carried out within Tong.
Circulating fluid-bed coal-burning boiler coal economizer energy-conserving reconstruction method the most according to claim 1, it is characterised in that: described
SCR catalyst structure (2) periphery is additionally provided with platform staircase (12), during reducing energy consumption, and should be in SCR catalyst structure (2)
Before An Zhuaning, platform staircase (12) is transformed, formation path, the danger that minimizing personnel may fall, necessary to the platform installed
Leave enough safe installing spaces to prevent from occurring unexpectedly.
Circulating fluid-bed coal-burning boiler coal economizer energy-conserving reconstruction method the most according to claim 1, it is characterised in that: described
Upper the Tubes of Membrane Economizer (5) and lower the Tubes of Membrane Economizer (7) are respectively by the fixing pipe connecting himself of some comb plate, comb joints (13)
Road.
Circulating fluid-bed coal-burning boiler coal economizer energy-conserving reconstruction method the most according to claim 1, it is characterised in that: described
Higher level's economizer (1), subordinate's economizer (3), subordinate's economizer exit header (8) and higher level's economizer import header (9) are the most logical
Cross fixing device (14) to be connected on boiler furnace (15).
Circulating fluid-bed coal-burning boiler coal economizer energy-conserving reconstruction method the most according to claim 1 or 5, it is characterised in that:
Step A by higher level's economizer (1) and subordinate's economizer (3) the most upwards, move down: the higher level of higher level's economizer (1) is saved
Coal device outlet header (4) and upper the Tubes of Membrane Economizer (5) lift 300-900mm, on the whole simultaneously by the subordinate of subordinate's economizer (3)
Economizer import header (6) and lower the Tubes of Membrane Economizer (7) entirety move down 600-2000mm；
The Tubes of Membrane Economizer (5) in the cutting of step B: the longitudinal direction of upper the Tubes of Membrane Economizer (5) is cut off 12 rows and moves on to lower membrane type province
The top of coal device pipe (7), and will after cutting with upper the Tubes of Membrane Economizer (5) and lower the Tubes of Membrane Economizer (7) respectively with its
Corresponding header is connected, upper the Tubes of Membrane Economizer (5) longitudinally 18 rows after transformation, lower the Tubes of Membrane Economizer (7) longitudinally 42 rows, it is ensured that
Always longitudinal row 60 row is constant for economizer.
Circulating fluid-bed coal-burning boiler coal economizer energy-conserving reconstruction method the most according to claim 6, it is characterised in that: step
B is time on carrying out, the Tubes of Membrane Economizer (5) is longitudinally cutting, it is ensured that otch (51) distance boiler furnace (15) mounting distance is
260mm, and ensure that the fore-and-aft distance between each pipe unit of upper pattern economizer tube (5) is 90mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610775037.0A CN106287683B (en) | 2016-08-31 | 2016-08-31 | Circulating fluidized bed combustion coal boiler economizer energy-conserving reconstruction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610775037.0A CN106287683B (en) | 2016-08-31 | 2016-08-31 | Circulating fluidized bed combustion coal boiler economizer energy-conserving reconstruction method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106287683A true CN106287683A (en) | 2017-01-04 |
| CN106287683B CN106287683B (en) | 2018-07-06 |
Family
ID=57672912
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610775037.0A Active CN106287683B (en) | 2016-08-31 | 2016-08-31 | Circulating fluidized bed combustion coal boiler economizer energy-conserving reconstruction method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106287683B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1486712A (en) * | 1974-03-22 | 1977-09-21 | Foster Wheeler Energy Corp | Vapour generating system and method |
| CN101943395A (en) * | 2010-09-26 | 2011-01-12 | 安徽金鼎锅炉股份有限公司 | Circulating fluidized bed boiler |
| CN103900097A (en) * | 2014-03-26 | 2014-07-02 | 东南大学 | SCR (selective catalytic reduction) denitrification modification method and SCR denitrification modification device for boilers |
| CN204420970U (en) * | 2015-01-26 | 2015-06-24 | 河北大唐国际丰润热电有限责任公司 | The novel economizer of boiler controller system denitrating system |
-
2016
- 2016-08-31 CN CN201610775037.0A patent/CN106287683B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1486712A (en) * | 1974-03-22 | 1977-09-21 | Foster Wheeler Energy Corp | Vapour generating system and method |
| CN101943395A (en) * | 2010-09-26 | 2011-01-12 | 安徽金鼎锅炉股份有限公司 | Circulating fluidized bed boiler |
| CN103900097A (en) * | 2014-03-26 | 2014-07-02 | 东南大学 | SCR (selective catalytic reduction) denitrification modification method and SCR denitrification modification device for boilers |
| CN204420970U (en) * | 2015-01-26 | 2015-06-24 | 河北大唐国际丰润热电有限责任公司 | The novel economizer of boiler controller system denitrating system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106287683B (en) | 2018-07-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102635844B (en) | Boiler system using waste heat of flue gas of rotary hearth furnace | |
| CN102620274B (en) | Horizontal oil-fired and gas-fired efficient energy-saving boiler | |
| CN104456545A (en) | Special circulating fluidized bed boiler with flue gas recirculation | |
| CN206944137U (en) | CFBB based on denitration minimum discharge technology | |
| CN204420993U (en) | With the specific cycle fluidized-bed combustion boiler of flue gas recirculation | |
| CN106287683A (en) | Circulating fluid-bed coal-burning boiler coal economizer energy-conserving reconstruction method | |
| CN206094052U (en) | Bed coal fired boiler economizer is vulcanized in high -efficient circulation | |
| CN206094053U (en) | Energy -conserving economizer of bed coal fired boiler is vulcanized in circulation | |
| CN205825011U (en) | A kind of fluidized-bed combustion boiler environment protecting power economizer | |
| CN202660521U (en) | Horizontal type fuel oil and gas high-efficiency and energy-saving boiler | |
| CN205191536U (en) | Three channels power plant boiler suitable for 700 DEG C steam condition | |
| CN105423268B (en) | A kind of triple channel station boiler for being applied to 700 DEG C of steam parameters | |
| CN204514070U (en) | A kind of sinter fume waste heat recovery horizontal type waste heat boiler | |
| CN108870384B (en) | The burning of low nitrogen burning circulating fluidized bed boiler and SNCR denitration cooperative optimization method | |
| CN211372385U (en) | Secondary high-temperature secondary high-pressure pulverized coal boiler | |
| CN106196033B (en) | Circulating fluid-bed coal-burning boiler energy-saving economizer | |
| CN106247324B (en) | Efficient circulating fluid bed coal-burning boiler coal economizer | |
| CN203810379U (en) | Boiler waste heat recovery system | |
| CN209341293U (en) | A kind of boiler preheating device | |
| CN207936046U (en) | Without economizer methanol boiler | |
| CN106439798B (en) | Circulating fluid-bed coal-burning boiler economizer | |
| CN202452468U (en) | 670MW supercritical tower type lignite boiler | |
| CN109237465A (en) | A kind of turbulent burner and turbulent burner idle air spray into system | |
| CN208154816U (en) | Combusting coal fines energy-saving hot-water boiler | |
| CN110686232B (en) | Secondary high-temperature and secondary high-pressure pulverized coal boiler |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20191022 Address after: Erling Town, Danyang City, Zhenjiang City, Jiangsu Province Patentee after: Jiangsu Huineng Heavy Industry Co., Ltd Address before: 212362, Jiangsu, Zhenjiang province Danyang Er hill town Patentee before: Jiangsu Huineng Boiler Co., Ltd. |
|
| TR01 | Transfer of patent right |