CN208042126U - A kind of First air arrangement system of adjustment pants leg type burner hearth bed pressure - Google Patents
A kind of First air arrangement system of adjustment pants leg type burner hearth bed pressure Download PDFInfo
- Publication number
- CN208042126U CN208042126U CN201820160991.3U CN201820160991U CN208042126U CN 208042126 U CN208042126 U CN 208042126U CN 201820160991 U CN201820160991 U CN 201820160991U CN 208042126 U CN208042126 U CN 208042126U
- Authority
- CN
- China
- Prior art keywords
- air
- primary air
- burner hearth
- primary
- wind
- 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.)
- Active
Links
Classifications
-
- 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
- Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
Landscapes
- Air Supply (AREA)
Abstract
The utility model belongs to circulating fluidized-bed combustion boiler technical field, and in particular to a kind of First air arrangement system of adjustment pants leg type burner hearth bed pressure.Technical solution is made of primary air system A branches and primary air system B branches；The primary air system A branches and primary air system B branch circuit parallel connections arrangement；It is equipped with a cold air duct liaison tube between the primary air system A branches and primary air system B branches, a cold air duct liaison tube baffle door is equipped in a cold air duct liaison tube.The utility model advantageously reduces the resistance of primary air system, reduces the power consumption of primary air fan, reduces boiler tilting table risk, reduces the labor intensity of operations staff, improves the year availability and the advantages that safe and stable operation of boiler.
Description
Technical field
The utility model belongs to circulating fluidized-bed combustion boiler technical field, and in particular to a kind of adjustment pants leg type stove
The First air arrangement system of thorax bed pressure.
Background technology
The chamber structure of widely used pants leg type, pants leg type in current large-size circulating fluidized bed (CFB) boiler design
Burner hearth preferably solves Secondary Air present in twin furnace and penetrates and First air cloth wind uniformity in a manner of its unique cloth wind
Problem, but produce new industrial problem, i.e. burner hearth tilting table accident again in operational process.Air preheater is as the important of boiler plant
Ancillary equipment mostly uses greatly four points of storehouse rotary regenerative air preheaters.In the process of running, what two primary air fans generated is cold primary
Enter air preheater after wind mixing, the heat primary air after heat exchange enters the isobaric air compartment under air distribution plate by two in-duct burners.
During adjusting burner hearth left and right sides bed pressure, the case where being interfered with each other there are heat primary air, inclined bed phenomenon is easy tod produce, it is unfavorable
In set steady long-term operation.
Utility model content
The purpose of this utility model is to solve above-mentioned prior art problem, provides a kind of adjustment pants leg type burner hearth bed pressure
First air arrangement system.
To achieve the above object, technical solution used by the utility model is:
A kind of First air arrangement system of adjustment pants leg type burner hearth bed pressure, wherein：By primary air system A branches and once
Wind system B branches form；The primary air system A branches and primary air system B branch circuit parallel connections arrangement；In the First air
It is equipped with a cold air duct liaison tube between system A branches and primary air system B branches, is set in a cold air duct liaison tube
Once cold air duct liaison tube baffle door.
The primary air system A branches include A strainers, A primary air fans guide blade adjusting device, A primary air fans, A warm winds
Device, cool air hose of A, air preheater, hot blast pipe of A, burner hearth left side First air controllable register valve position, A flowmeters, A water cooling wind
Room, pants leg type burner hearth；The A strainers are connected by cool air hose with the entrance of A primary air fan guide blade adjusting devices；The A mono-
The outlet of secondary guide-vane for fan regulating device is connected with the entrance of A primary air fans by cool air hose；The outlet of the A primary air fans is logical
Cool air hose is crossed with the entrance of A steam air heaters to be connected；The outlet of the A steam air heaters is primary by cool air hose of A and the A in air preheater
Wind cabin is connected；Wind cabin of the A is connected by hot blast pipe of A with First air controllable register valve position on the left of burner hearth, the stove
First air controllable register valve position is connected by hot blast pipe with the entrance of A flowmeters on the left of thorax；The A flowmeters by hot blast pipe with
A water cooled wind chambers are connected, and the A water cooled wind chambers are located at below pants leg type burner hearth inside left.
The primary air system B branches include B strainers, B primary air fans guide blade adjusting device, B primary air fans, B warm winds
Device, cool air hose of B, air preheater, hot blast pipe of B, burner hearth right side First air controllable register valve position, B flowmeters, B water cooling wind
Room, pants leg type burner hearth；The B strainers are connected by cool air hose with the entrance of B primary air fan guide blade adjusting devices；The B mono-
The outlet of secondary guide-vane for fan regulating device is connected with the entrance of B primary air fans；The outlet of the B primary air fans by cool air hose with
The entrance of B steam air heaters is connected；The outlet of the B steam air heaters is connected by cool air hose of B with wind cabin of B in air preheater；
Described wind cabin of B is connected by hot blast pipe of B with First air controllable register valve position on the right side of burner hearth, one on the right side of the burner hearth
Secondary wind controllable register valve position is connected by hot blast pipe with the entrance of B flowmeters；The B flowmeters pass through hot blast pipe and B water cooling wind
Room is connected, and the B water cooled wind chambers are located at below the inner right side of pants leg type burner hearth.It plays and maintains bed stable and keep bed material equal
The effect of uniform flow.
It is equipped with First air in a wind cabin of the wind cabin of the air preheater and separates fanning strip；Wind cabin of B and A is primary
Wind cabin is separated into mutually independent two wind cabins.
Since the utility model uses above-mentioned technical proposal, the setting separation fanning strip in a wind cabin of air preheater,
Four points of storehouse air preheaters are divided into five points of storehouse air preheaters, while being different from currently on the market after the mixing of the primary air system of operation
Air preheater is entered back into, two strands of cold First airs described in the utility model do not mix before entering air preheater, but independently
Separate wind cabin of two independences that fanning strip separates wind cabin of air preheater, process and high-temperature flue gas by First air
After heat exchange, the heat primary air that quality improves enters the water cooling wind of pants leg type burner hearth by two in-duct burners each independently
Room is different from the primary air system currently on the market in operation, and first mixing exchanges heat with high-temperature flue gas in air preheater, then separately leads to
Cross heat primary air road.During First air adjusts pants leg type burner hearth bed pressure, by the aperture of primary air fan pitch, match simultaneously
The frequency conversion of primary air fan is closed to adjust jointly.It is arranged communicating pipe between two primary air pipings, respectively chain left and right sides First air
Machine closes the inlet baffle door of left side failure wind turbine, while connection opens the baffle door in shared bellows when left side fan trouble,
By the other side wind turbine air blast of normal operation, the baffle door of fan outlet is adjusted according to bed pressure and load condition, adjusts First air
Operation.It is so not only advantageous to the adjustment of inclined bed, but also can achieve the purpose that energy-saving.Therefore, the utility model has
The resistance for advantageously reducing primary air system reduces the power consumption of primary air fan, reduces boiler tilting table risk, reduces operation people
The labor intensity of member improves the year availability and the advantages that safe and stable operation of boiler.
Description of the drawings
Fig. 1 is the structural schematic diagram of the utility model.
Specific implementation mode：
As shown in Figure 1, a kind of First air arrangement system of adjustment pants leg type burner hearth bed pressure described in the present embodiment, wherein：
It is made of primary air system A branches and primary air system B branches；The primary air system A branches and primary air system B branches
Parallel arrangement；A cold air duct liaison tube 11 is equipped between the primary air system A branches and primary air system B branches,
A cold air duct liaison tube baffle door 12 is equipped in a cold air duct liaison tube 11.
The primary air system A branches include A strainers 1, A primary air fans guide blade adjusting device 3, A primary air fans 5, A warm
Wind device 7, cool air hose 9 of A, air preheater 13, hot blast pipe 17 of A, burner hearth left side First air controllable register valve position 19, A flows
Meter 21, A water cooled wind chambers 23, pants leg type burner hearth 25；The A strainers 1 pass through cool air hose and A primary air fans guide blade adjusting device 3
Entrance be connected；The outlet of the A primary air fans guide blade adjusting device 3 is connected with the entrance of A primary air fans 5 by cool air hose；
The outlet of the A primary air fans 5 is connected by cool air hose with the entrance of A steam air heaters 7；The outlet of the A steam air heaters 7 passes through A mono-
Secondary cool air hose 9 is connected with wind cabin 15 of A in air preheater 13；Wind cabin 15 of the A passes through hot blast pipe 17 of A and burner hearth
Left side First air controllable register valve position 19 is connected, and First air controllable register valve position 19 act as going out by changing wind turbine on the left of burner hearth
The aperture of mouth throttle flap increases or reduces system resistance to adjust air quantity and wind pressure size on the left of burner hearth；On the left of the burner hearth
First air controllable register valve position 19 is connected by hot blast pipe with the entrance of A flowmeters 21；A flowmeters 21 act as measuring and show
Show the air quantity on the left of burner hearth；The A flowmeters 21 are connected by hot blast pipe with A water cooled wind chambers 23, and the A water cooled wind chambers 23 are located at
Below 25 inside left of pants leg type burner hearth.Play the effect for maintaining that bed is stable and keeps bed material even fluidizing.
The primary air system B branches include B strainers 2, B primary air fans guide blade adjusting device 4, B primary air fans 6, B warm
Wind device 8, cool air hose 10 of B, air preheater 13, hot blast pipe 18 of B, burner hearth right side First air controllable register valve position 20, B flows
Meter 22, B water cooled wind chambers 24, pants leg type burner hearth 25；The B strainers 2 pass through cool air hose and B primary air fans guide blade adjusting device 4
Entrance be connected；B primary air fans guide blade adjusting device 4 act as the aperture by changing primary air fan inlet throttle baffle, increases
Greatly or reduce air quantity to adjust the air quantity and wind pressure on the right side of burner hearth；The outlet of the B primary air fans guide blade adjusting device 4 and B mono-
The entrance of secondary wind turbine 6 is connected；The outlet of the B primary air fans 6 is connected by cool air hose with the entrance of B steam air heaters 8；The B is warm
The summer of wind device 8 deactivates, and winter puts into operation, and plays the role of cold wind of heating and improves boiler efficiency；The B steam air heaters 8 go out
Mouth is connected by cool air hose 10 of B with wind cabin 16 of B in air preheater 13；Described wind cabin 16 of B is once hot by B
Air hose 18 is connected with First air controllable register valve position 20 on the right side of burner hearth, and First air controllable register valve position 20 acts on the right side of the burner hearth
It is big to adjust air quantity and wind pressure on the left of burner hearth by the aperture for changing fan outlet throttle flap, to increase or reduce system resistance
It is small；First air controllable register valve position 20 is connected by hot blast pipe with the entrance of B flowmeters 22 on the right side of the burner hearth；B flowmeters 22
Act as measure and show the air quantity on the right side of burner hearth；The B flowmeters 22 are connected by hot blast pipe with B water cooled wind chambers 24, institute
B water cooled wind chambers 24 are stated to be located at below the inner right side of pants leg type burner hearth 25.It plays and maintains bed stable and make bed material uniform flow
The effect of change.
It is equipped with First air in a wind cabin of the wind cabin of the air preheater 13 and separates fanning strip 14；By wind cabin 16 of B
It is separated into mutually independent two wind cabins with wind cabin 15 of A.
The operating process of the utility model, includes the following steps：
The first step, first in the case where the generation load of unit is 210MW, adjustment primary air system A branches and primary
The air quantity and wind pressure of wind system B branches keep balance, and adjustment pants leg type of furnace left and right sides bed pressure is made also to keep balancing；
Second step passes through A strainers 1, A primary air fan guide vane tune successively as the First air of primary air system A branches in the future
When regulating device 3, A primary air fans 5, the pressure of primary air system A branches is 20.69kpa, and when temperature is 21.3 DEG C, adjustment A is primary
When guide-vane for fan regulating device 3 makes its aperture reach 98.91%, then A primary air fans 5 are adjusted, makes the electric current of A primary air fans 5 be
160.1A, frequency 38Hz；
Third walks, and the First air of primary air system A branches is passed through A steam air heaters 7, makes the primary of primary air system A branches
Air temperature is increased to 40.8 DEG C, wind cabin 15 of A that the angular separation using air preheater 13 is 23 °, by primary air system A branch
The First air on road is 5.1 ten thousand Nm with flow3/ h, the high-temperature flue gas that temperature is 267.7 DEG C exchange heat；Then by one after heat exchange
Hot wind of secondary wind system A branches passes sequentially through hot blast pipe 17 of A, burner hearth left side First air controllable register valve position 19, A streams
While gauge 21 enters the A water cooled wind chambers 23 of pants leg type burner hearth 25, First air controllable register valve position 19 on the left of adjustment burner hearth
Aperture reach 56.27%, then measure a wind flow of primary air system A branches by A flowmeters 21, reach
Flow is 15.9 ten thousand Nm3/ h, left side bed pressure is 8.98kpa；
4th step, to make right side bed pressure keep balance with the left side bed pressure described in third step, primary air system B branches
When First air passes through B strainers 2, B primary air fans guide blade adjusting device 4, B primary air fans 6 successively, by primary air system B branches
Primary air pressure is 20.5kpa, when temperature is 22.3 DEG C, then adjusts B primary air fans guide blade adjusting device 4, its aperture is made to reach
When 98.94%；B primary air fans 6 are adjusted again, and it is 157.2A, frequency 38Hz to make the electric current of B primary air fans 6；
The First air of primary air system B branches is passed through B steam air heaters 8, makes the primary of primary air system B branches by the 5th step
Air temperature is increased to 41.5 DEG C, wind cabin 16 of B that the angular separation using air preheater 13 is 24 °, by primary air system B branch
The First air on road is 5.3 ten thousand Nm with flow3/ h, the high-temperature flue gas that temperature is 263.8 DEG C exchange heat；Then by one after heat exchange
Hot wind of secondary wind system B branches passes sequentially through hot blast pipe 18 of B, burner hearth right side First air controllable register valve position 20, B again
While flowmeter 22 enters the B water cooled wind chambers 24 of pants leg type burner hearth 25, First air controllable register valve position on the right side of adjustment burner hearth
It is 44.64% that 20 aperture, which reaches, then a wind flow of primary air system B branches is measured by B flowmeters 22, makes it
It is 16.2 ten thousand Nm to reach flow3/ h, right side bed pressure is 8.57kpa；Substantially balance is maintained with left side bed pressure；
6th step closes the outlet of A primary air fans 5 when the A primary air fans 5 in primary air system A branches break down
Baffle door, while connection opens a cool air hose liaison tube baffle door 12 of primary air system A branches, primary air system B branches, by just
6 air blast of B primary air fans often run adjusts the operation of First air according to bed pressure and load condition.
Claims (4)
1. a kind of First air arrangement system of adjustment pants leg type burner hearth bed pressure, it is characterized in that：By primary air system A branches and one
Secondary wind system B branches composition；The primary air system A branches and primary air system B branch circuit parallel connections arrangement；Described primary
It is equipped with a cold air duct liaison tube (11) between wind system A branches and primary air system B branches, is got in touch in a cold air duct
It manages and is equipped with a cold air duct liaison tube baffle door (12) in (11).
2. a kind of First air arrangement system of adjustment pants leg type burner hearth bed pressure according to claim 1, it is characterized in that：Institute
The primary air system A branches stated include A strainers (1), A primary air fans guide blade adjusting device (3), A primary air fans (5), A steam air heaters
(7), cool air hose (9) of A, air preheater (13), hot blast pipe (17) of A, First air controllable register valve position (19) on the left of burner hearth,
A flowmeters (21), A water cooled wind chambers (23), pants leg type burner hearth (25)；The A strainers (1) pass through cool air hose and A primary air fans
The entrance of guide blade adjusting device (3) is connected；The outlet of the A primary air fans guide blade adjusting device (3) and A primary air fans (5)
Entrance is connected by cool air hose；The outlet of the A primary air fans (5) is connected by cool air hose with the entrance of A steam air heaters (7)；Institute
The outlet for stating A steam air heaters (7) is connected by cool air hose (9) of A with wind cabin (15) of A in air preheater (13)；The A mono-
Secondary wind cabin (15) is connected by hot blast pipe (17) of A with First air controllable register valve position (19) on the left of burner hearth, and the burner hearth is left
Side First air controllable register valve position (19) is connected by hot blast pipe with the entrance of A flowmeters (21)；The A flowmeters (21) pass through
Hot blast pipe is connected with A water cooled wind chambers (23), and the A water cooled wind chambers (23) are located at below pants leg type burner hearth (25) inside left.
3. a kind of First air arrangement system of adjustment pants leg type burner hearth bed pressure according to claim 1, it is characterized in that：Institute
The primary air system B branches stated include B strainers (2), B primary air fans guide blade adjusting device (4), B primary air fans (6), B steam air heaters
(8), cool air hose (10) of B, air preheater (13), hot blast pipe (18) of B, burner hearth right side First air controllable register valve position
(20), B flowmeters (22), B water cooled wind chambers (24), pants leg type burner hearth (25)；The B strainers (2) are primary with B by cool air hose
The entrance of guide-vane for fan regulating device (4) is connected；The outlet of the B primary air fans guide blade adjusting device (4) and B primary air fans
(6) entrance is connected；The outlet of the B primary air fans (6) is connected by cool air hose with the entrance of B steam air heaters (8)；The B is warm
The outlet of wind device (8) is connected by cool air hose (10) of B with wind cabin (16) of B in air preheater (13)；The B is primary
Wind cabin (16) is connected by hot blast pipe (18) of B with First air controllable register valve position (20) on the right side of burner hearth, on the right side of the burner hearth
First air controllable register valve position (20) is connected by hot blast pipe with the entrance of B flowmeters (22)；The B flowmeters (22) pass through heat
Air hose is connected with B water cooled wind chambers (24), and the B water cooled wind chambers (24) are located at below the inner right side of pants leg type burner hearth (25),
Play the effect for maintaining that bed is stable and keeps bed material even fluidizing.
4. a kind of First air arrangement system of adjustment pants leg type burner hearth bed pressure according to claim 2 or 3, feature
It is：It is equipped with First air in a wind cabin of the wind cabin of the air preheater (13) and separates fanning strip (14)；By wind cabin (16) of B
It is separated into mutually independent two wind cabins with wind cabin (15) of A.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820160991.3U CN208042126U (en) | 2018-01-31 | 2018-01-31 | A kind of First air arrangement system of adjustment pants leg type burner hearth bed pressure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820160991.3U CN208042126U (en) | 2018-01-31 | 2018-01-31 | A kind of First air arrangement system of adjustment pants leg type burner hearth bed pressure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208042126U true CN208042126U (en) | 2018-11-02 |
Family
ID=63955040
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820160991.3U Active CN208042126U (en) | 2018-01-31 | 2018-01-31 | A kind of First air arrangement system of adjustment pants leg type burner hearth bed pressure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208042126U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108131667A (en) * | 2018-01-31 | 2018-06-08 | 山西平朔煤矸石发电有限责任公司 | A kind of First air arrangement system and its method for adjusting pants leg type burner hearth bed pressure |
-
2018
- 2018-01-31 CN CN201820160991.3U patent/CN208042126U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108131667A (en) * | 2018-01-31 | 2018-06-08 | 山西平朔煤矸石发电有限责任公司 | A kind of First air arrangement system and its method for adjusting pants leg type burner hearth bed pressure |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108317632B (en) | Air conditioning system | |
| CN109681898B (en) | Primary air heating temperature-regulating system of phase-change heat pipe type power plant | |
| CN106287666B (en) | A kind of air and backflow flue gas match adjustable type biomass boiler system | |
| CN106402838A (en) | Tail flue gas waste heat utilizing system of utility boiler based on hot blast recycling | |
| CN106482088A (en) | Joint thermal wind sensor utilizes system with the residual heat from boiler fume of steam air heater | |
| CN106839746A (en) | A kind of bf coal injection system combustion gas furnace automatically optimizes burning stove control method | |
| CN208042126U (en) | A kind of First air arrangement system of adjustment pants leg type burner hearth bed pressure | |
| CN110822950B (en) | Waste heat utilization system and method | |
| CN209798321U (en) | Printing and dyeing setting machine with waste heat recovery function | |
| CN209271840U (en) | A kind of Two-way Cycle drying system | |
| CN203687075U (en) | Primary air system of coal mill of thermal power plant | |
| WO2019042155A1 (en) | Plasma heating-based temperature regulation method and device for blast furnace hot air system | |
| CN206094037U (en) | Air and adjustable type biomass boiler system of backward flow flue gas ratio | |
| CN110107912A (en) | A kind of coal-burning power plant's novel air preheater system and its working method | |
| CN108131667A (en) | A kind of First air arrangement system and its method for adjusting pants leg type burner hearth bed pressure | |
| CN207716652U (en) | Gypsum production hot-blast stove | |
| CN106370034A (en) | Flue gas heat exchange system for urea pyrolysis | |
| CN210463080U (en) | Novel air heater system of coal fired power plant | |
| CN105485707B (en) | A kind of powder processed of combination UTILIZATION OF VESIDUAL HEAT IN adjusts wind system and powder processed to adjust wind method | |
| CN205316371U (en) | Combine waste heat utilization's powder process to transfer wind system all | |
| CN210832077U (en) | Energy-saving anti-blocking system combining pipe type and two-bin type rotary air preheater | |
| CN208871663U (en) | A kind of boiler supply air system | |
| CN106642679A (en) | Jet metal hot-blast stove for tea heating dehumidification | |
| CN209558325U (en) | A kind of heating furnace flue gas recirculation burner | |
| CN203489248U (en) | Thermal power plant boiler flue gas waste heat energy-saving system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |