CN105571132B - A kind of vertical Natural Circulation condensing boiler - Google Patents
A kind of vertical Natural Circulation condensing boiler Download PDFInfo
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- CN105571132B CN105571132B CN201610082054.6A CN201610082054A CN105571132B CN 105571132 B CN105571132 B CN 105571132B CN 201610082054 A CN201610082054 A CN 201610082054A CN 105571132 B CN105571132 B CN 105571132B
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- flue gas
- condensation
- natural circulation
- condensing
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H8/00—Fluid heaters characterised by means for extracting latent heat from flue gases by means of condensation
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23L—SUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL ; VALVES OR DAMPERS SPECIALLY ADAPTED FOR CONTROLLING AIR SUPPLY OR DRAUGHT IN COMBUSTION APPARATUS; INDUCING DRAUGHT IN COMBUSTION APPARATUS; TOPS FOR CHIMNEYS OR VENTILATING SHAFTS; TERMINALS FOR FLUES
- F23L15/00—Heating of air supplied for combustion
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/18—Arrangement or mounting of grates or heating means
- F24H9/1809—Arrangement or mounting of grates or heating means for water heaters
- F24H9/1832—Arrangement or mounting of combustion heating means, e.g. grates or burners
- F24H9/1836—Arrangement or mounting of combustion heating means, e.g. grates or burners using fluid fuel
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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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
-
- 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
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The invention discloses a kind of vertical Natural Circulation condensing boilers, including boiler body, boiler body includes burner hearth and the flue gas chamber positioned at burner hearth radial outside, the outer circle wall of flue gas chamber is equipped with exhanst gas outlet, there are smoke inlets on the inner peripheral wall of flue gas chamber, the angle deflected between exhanst gas outlet and smoke inlet is more than 90 degree, and the upper and lower ends of flue gas chamber are respectively equipped with annular header and lower annular header；Between upper annular header and lower annular header, decline tube bank connection in tube bank sum aggregate by concentrating to rise, common downcomer beam includes common downcomer of the circle along flue gas chamber circumference, concentrate rise tube bank include two enclose common downcomer beam diameter inwardly, along the coaxially arranged concentration tedge of the circumference of flue gas chamber, concentrating the outer ring for rising tube bank and common downcomer Shu Jun, there are face exhanst gas outlets, the flue gas delivery space being vertically arranged, the inner ring for rising tube bank is concentrated to be equipped with face smoke inlet, the flue gas being vertically arranged enters gap.
Description
Technical field
The present invention relates to a kind of vertical Natural Circulation condensing boilers.
Background technology
Current existing gas fired-boiler is broadly divided into vertical and two kinds horizontal：Although horizontal gas-fired boiler can accomplish cigarette
Gas condensing recovery, but have the following disadvantages：It takes up a large area, place bad adaptability；Water capacity is big, and ontology radiation loss is big,
Caused by actual operating efficiency it is low, speed of steaming is slow, and it is big to start loss, and water inlet needs thermal de-aeration, exhaust gas temperature it is higher or
Need independent water circulation system, the seriously corroded of condenser that can not ensure service life, automatic control level is relatively backward, current
Vertical gas boiler has the following disadvantages and deficiency：High fume temperature, the thermal efficiency are low.It is single to be recycled using air preheater, recycling effect
Fruit is limited, easily corrodes, and easy tos produce booster, is had an impact to stable operation of the boiler, and carbonated drink needs to install the outer separator of stove,
Influence practicability and beauty.
Invention content
The purpose of the invention is to overcome the deficiencies of the prior art and provide a kind of vertical Natural Circulation condensing boiler,
While reaching the operational efficiency of existing horizontal gas-fired boiler, solve horizontal gas-fired boiler take up a large area, water capacity it is big
The problems such as, and the technical issues of well solved the operation stability of vertical boiler, operational efficiency.
Realizing a kind of technical solution of above-mentioned purpose is：A kind of vertical Natural Circulation condensing boiler, including boiler body, institute
It includes burner hearth and the flue gas chamber positioned at the burner hearth radial outside to state boiler body, and the outer circle wall of the flue gas chamber is equipped with cigarette
Gas exports, and there are smoke inlets on the inner peripheral wall of the flue gas chamber, are deflected between the exhanst gas outlet and the smoke inlet
Angle be more than 90 degree, the upper and lower ends of the flue gas chamber are respectively equipped with annular header and lower annular header；
Between the upper annular header and the lower annular header, decline the company of tube bank by concentrating to rise in tube bank sum aggregate
Logical, the common downcomer beam includes common downcomer of the circle along the flue gas chamber circumference, the concentration tedge
Beam include two circles the common downcomer beam diameter inwardly, rise along the coaxially arranged concentration of the circumference of the flue gas chamber
Pipe, it is described to concentrate the outer ring for rising tube bank and the common downcomer Shu Jun there are exhanst gas outlet described in face, it is vertically arranged
Flue gas delivery space, it is described that the inner ring for rising tube bank is concentrated to be equipped with smoke inlet described in face, the flue gas that is vertically arranged into
Enter gap.
Further, water separator is equipped in the upper annular header, the water separator includes carbonated drink point
From piece group, the steam-water separation piece group includes several diametric(al)s along upper annular header steam-water separation arranged in parallel
Piece forms steam-water separation channel between the adjacent steam-water separation piece of arbitrary two panels.
Further, the both ends of the steam-water separation piece group are equipped with fixed link, and the fixed link divides the carbonated drink
It is fixed in the upper annular header from piece group.
Further, every steam-water separation piece in the steam-water separation piece group is obliquely installed.
Further, the top of the burner hearth is equipped with burner.
Further, the burner includes mixed fan housing, premixer and the bellows being sequentially coaxially arranged from bottom to up, institute
The top that bellows are fixed on the burner hearth is stated, the premixer and the mixed fan housing stretch into the burner hearth, the outer circle of the bellows
Combustion air blast pipe is connected on peripheral wall, the center of the bellows top surface is plugged with a main combustion gas for stretching into the mixed fan housing vertically
Inlet tube, sets that there are one stretch into the premix of the mixed fan housing vertically between the main fuel gas inlet pipe and the combustion air blast pipe
Cyclone is equipped with the burning torch for stretching into the mixed fan housing vertically between the premixed swirl device and the combustion air blast pipe.
Further, which further includes energy-saving appliance, and the energy-saving appliance is by gas baffle point
Be divided into superposed hotair chamber and the flue gas cooling chamber positioned at lower part, the flue gas cooling chamber be equipped with flue gas emission mouth and
The off-gas recovery mouth of the connection exhanst gas outlet, the hotair chamber are equipped with air intake passage and are connected to going out for the burner
Wind channel, the center of the energy-saving appliance are equipped with the heat exchanger through the gas baffle；
The non-condensing heating surface being equipped in the flue gas cooling chamber between the off-gas recovery mouth and the heat exchanger,
And the condensation heating surface between the flue gas emission mouth and the heat exchanger, the condensation heating surface, the heat exchanger
It is raised successively with the temperature of the non-condensing heating surface.
Further, the center of the gas baffle is comb plate, comb joint, and the heat exchanger includes several vertical through described
The gravity-type heat exchanger tube of comb plate, comb joint.
Further, the condensation heating surface, including bottom header, intermediate header and top lower header, the bottom
It is connected to by the lower condensation circumferential direction fin tube layer and condensation bend pipe that are arranged alternately successively between header and the intermediate header, it is described
It is connected to by the upper condensation circumferential direction fin tube layer and condensation bend pipe that are arranged alternately successively between intermediate header and the top header,
The also outer water pump of bottom header.
Further, the non-condensing heating surface includes the first header and the second header, and first header is located at institute
The top of the second header is stated, the non-condensing circumferential direction wing between first header and second header by being arranged alternately successively
Piece tube layer is connected to non-condensing bend pipe, and second header is connected to the top header of the condensation heating surface, first header
It is connected to the lower annular header of the boiler body.
Use a kind of technical solution of vertical Natural Circulation condensing boiler of the present invention, including boiler body, the pot
Furnace body includes burner hearth and the flue gas chamber positioned at the burner hearth radial outside, and the outer circle wall of the flue gas chamber goes out equipped with flue gas
Mouthful, there are smoke inlet on the inner peripheral wall of the flue gas chamber, the angle deflected between the exhanst gas outlet and the smoke inlet
Degree is more than 90 degree, and the upper and lower ends of the flue gas chamber are respectively equipped with annular header and lower annular header；The upper annular header
Between the lower annular header, decline tube bank connection in tube bank sum aggregate by concentrating to rise, the common downcomer beam includes
For one circle along the common downcomer of the flue gas chamber circumference, it includes that two circles decline in the concentration that the concentration, which rises tube bank,
Radially inner side is restrained, it is described to concentrate the outer ring for rising tube bank along the coaxially arranged concentration tedge of the circumference of the flue gas chamber
With the common downcomer Shu Jun there are exhanst gas outlet described in face, the flue gas delivery space being vertically arranged, in the concentration
The inner ring of riser beam is equipped with smoke inlet described in face, and the flue gas being vertically arranged enters gap.It has the technical effect that：By more
Pipe transversal flow, which is concentrated, rises tube bank, while reaching the operational efficiency of existing horizontal gas-fired boiler, solves Horizontal gas pot
The problems such as stove takes up a large area, water capacity is big, but well solved the operation stability of vertical boiler, operational efficiency technology
Problem.
Description of the drawings
Fig. 1 is a kind of front view of vertical Natural Circulation condensing boiler of the present invention.
Fig. 2 is a kind of left view of vertical Natural Circulation condensing boiler of the present invention.
Fig. 3 is a kind of vertical view of vertical Natural Circulation condensing boiler of the present invention.
Fig. 4 is a kind of front view of the boiler body of vertical Natural Circulation condensing boiler of the present invention.
Fig. 5 is a kind of vertical view of the boiler body of vertical Natural Circulation condensing boiler of the present invention.
Fig. 6 is a kind of vertical view of the water separator of vertical Natural Circulation condensing boiler of the present invention.
Fig. 7 is a kind of front view of the burner of vertical Natural Circulation condensing boiler of the present invention.
Fig. 8 is a kind of front view of the burner of vertical Natural Circulation condensing boiler of the present invention.
Fig. 9 is a kind of front view of the energy-saving appliance of vertical Natural Circulation condensing boiler of the present invention.
Figure 10 is a kind of internal structure chart of the energy-saving appliance of vertical Natural Circulation condensing boiler of the present invention.
Figure 11 is a kind of right figure of the energy-saving appliance of vertical Natural Circulation condensing boiler of the present invention.
Figure 12 is a kind of fundamental diagram of the energy-saving appliance of vertical Natural Circulation condensing boiler of the present invention.
Specific implementation mode
Referring to Fig. 1, the present inventor in order to preferably understand technical scheme of the present invention, is led to below
Specifically embodiment is crossed, and is described in detail in conjunction with attached drawing：
Referring to Fig. 1, a kind of vertical Natural Circulation condensing boiler of the present invention, including boiler body 1, boiler body 1 divide
For the burner hearth 11 and flue gas chamber 12 of coaxial arrangement.The outer circle wall of flue gas chamber 12 is equipped with exhanst gas outlet 13.Flue gas chamber 12 it is upper
Lower both ends are respectively equipped with annular header 16 and lower annular header 17.Pass through collection between upper annular header 16 and lower annular header 17
Middle rising tube bank 14 is connected to common downcomer beam 15.Wherein, common downcomer beam 15 is the circle along flue gas chamber 12 by a circle
The common downcomer composition of all arrangements, it is by two coaxially arranged circle collection of the circumference along flue gas chamber 12 to concentrate rising to restrain 14
Middle tedge composition.Common downcomer beam 15 is located at the radial outside concentrated and rise tube bank 14, rises tube bank 14 wherein concentrating
Outer ring and common downcomer beam 15 there are face exhanst gas outlets 13, be discharged, be vertically arranged from exhanst gas outlet 13 for flue gas
Flue gas delivery space.There are smoke inlet 121 on the inner peripheral wall of flue gas chamber 12, the inner ring for rising tube bank 14 is concentrated to be equipped with just
To smoke inlet 121, flue gas is made to enter flue gas chamber 12, the flue gas being vertically arranged enters gap.Exhanst gas outlet 13 and flue gas
The angle deflected between entrance 121 is less than or equal to 180 degree more than 90 degree.
The purpose designed in this way is：ω transversal flow Natural Circulations, upper annular header 16 are formd in flue gas chamber 12
The upper and lower ends for being located at common downcomer beam 15 and concentrating tedge beam 14 are corresponded to lower annular header 17, to make concentration decline
Tube bank 15 and the upper and lower ends gathering for concentrating tedge beam 14, and form annular arrangement.This design expands burner hearth 11, substantially
Degree improves the swept area of the heat transfer of burner hearth 11, accelerates the flow velocity of flue gas in boiler body 1, and improves the speed of convection current heat transfer
Rate.It is separated in concentrating rising tube bank 14 to fume balanced, then flows to the exhanst gas outlet 13 at rear portion, and steam water interface passes through
After water separator 18 in upper annular header 16 detaches, water flow to lower annular header 17 by common downcomer beam 15, is formed
Natural Circulation, water vapour are discharged from the steam (vapor) outlet 161 at 16 top of upper annular header, realize the carbonated drink point in boiler body 1
From.
Flue gas, by passing through between concentrating two circles for rising tube bank 14 to concentrate tedge, is concentrated in flue gas chamber 12 and rises tube bank
14 two circles concentrate tedge because being exchanged heat by flue gas transversal flow, and internal water heat volume expansion, density becomes smaller and rises to
Upper annular header 16, the water of lower annular header 17 is by concentrating rising tube bank 14 to flow to upper annular header 16.Common downcomer beam
15 due to being not directly contacted with flue gas, and water flows to lower annular header 17 via upper annular header 16, forms Natural Circulation.
Wherein, it is disposed at least a set of water separator 18 in upper annular header 16, often covers water separator 18 and wraps
Steam-water separation piece group 181 is included, it includes several diametric(al) parallels along upper annular header 16 often to cover steam-water separation piece group 181
The steam-water separation piece of row.Steam-water separation channel is formed between arbitrary two pieces adjacent steam-water separation pieces.Steam-water separation piece group 181
Both ends are respectively equipped with a fixed link 182, keep steam-water separation piece group 181 fixed in upper annular header 16.The two of fixed link 182
End is respectively fixing end and free end, and the fixing end of fixed link 182 and the outer circle wall of upper annular header 16 are fixed.Carbonated drink simultaneously
Every piece of steam-water separation piece in separate sheet group 181 is all to be in tilted layout, every in steam-water separation piece group 181 in the present embodiment
Height of the block steam-water separation piece close to 16 outer circle wall side of upper annular header is higher than it close to 16 inner peripheral wall of upper annular header
The height of side.The purpose designed in this way is the cycle for being more conducive to its aqueous mixtures in boiler body 1.
The principle of water separator 18 is similar to the impeller in steam turbine, carbonated drink of the water vapour from water separator 18
After passing through in split tunnel, boiler body 1, the water separated are flowed out from the steam (vapor) outlet 161 at the top of upper annular header 16
It is flowed back into lower annular header 17 from common downcomer beam 15.The water separator 18 is so that vertical gas boiler need not pacify
Fill the outer water separator of independent stove, and good separation, it is also possible to obtain good steam.The water separator
18, greatly reduce the floor space of boiler.Compared to water separator outside stove, separating effect is more preferable, obtains better steam product
Matter.
In conclusion boiler body 1 is concentrated by multitube transversal flow rises tube bank 14, which can reach
While the operational efficiency of existing horizontal gas-fired boiler, solve the problems such as horizontal gas-fired boiler takes up a large area, water capacity is big,
The technical problems such as the outer steam-water separation of operation stability, operational efficiency, stove of vertical boiler have been well solved again.
In addition, being designed with insulating layer 19 inside and outside the flue gas chamber 12 of boiler body 1.
The top of burner hearth 11 is equipped with the burner 2 for the flame into burner hearth 11.Burner 2 includes same successively from bottom to up
Mixed fan housing 21, premixer 22 and the bellows 23 of axis setting.Wherein fire resistant coating is coated on the inner wall of premixer 22 and mixed fan housing 21.
Wherein bellows 23 are fixed on the top of burner hearth 11, and premixer 22 and mixed fan housing 21 stretch into burner hearth 11.Outside bellows 23
Horizontally disposed combustion air blast pipe 24 is connected in circumferential wall, combustion air blast pipe 24 is equipped with the air door being vertically arranged and adjusts
Servo motor 241.The center of 23 top surface of bellows is plugged with a vertical main fuel gas inlet pipe 25, and main fuel gas inlet pipe 25 is one
Root bend pipe is divided into the horizontal segment outside bellows 23 and stretches into the vertical section of premixer 22 and mixed fan housing 21 straight down.Main combustion
The premixed swirl device 26 being vertically arranged there are one being set between the vertical section and combustion air blast pipe 24 of gas inlet tube 25.Premixed swirl
The top of device 26 is fixed with bellows 23, and mixed fan housing 21 is stretched into bottom end straight down, i.e. premixed swirl device 26 is inclined in bellows 23
Heart setting.It is equipped with from 23 top surface of bellows between premixed swirl device 26 and combustion air blast pipe 24 and stretches into burner 2 straight down
Burning torch 27, the bottom end of burning torch 27 stretches into mixed fan housing 21, and higher than the bottom end of premixed swirl device 26.The bottom end of burning torch 27
Equipped with flame holder 271.In bellows 23 one piece of vertical baffle plate 231 is additionally provided with 24 junction of combustion air blast pipe.Wind simultaneously
Ion bar 232, reflective flame-observing hole 233 and igniter 234 are also plugged on the top surface of case 23, igniter 234 connects burning torch
27。
Burner 2, it is automatic by combustion air blast pipe 24 before igniting by 27 automatic ignition of igniter 234 and burning torch
Purging carries out fire defector and blowout protection by burning torch 27, and wind pressure protection, combustion gas height are carried out by main fuel gas inlet pipe 25
Low pressure, burnt gas valve leak detection, to ensure the safe operation of burner 2.Burner 2 is equipped with connection air door and adjusts servo motor
241, the PID controller (not shown) of main fuel gas inlet pipe 25 and burning torch 27 realizes the two-part to fuel and air distribution
Dynamic regulation realizes that burning load adjusts the accurate adjusting with flame, and tracks the heating temperature in boiler, realizes the section of burning
It can environmental protection.
Burner 2 uses the admission pressure of main fuel gas inlet pipe 25 for 8-15kPa, and combustion air blast pipe 24 is connected into wind pressure
Power is 4-7kPa wind turbines 4, can effectively overcome 11 high back pressure of burner hearth, prevents 11 back pressure of burner hearth is excessively high from causing heat supply insufficient and burner hearth
11 surges ensure that the even running of entire boiler.Premixed swirl device 26 is eccentric setting in bellows 23, effective to improve
11 thermal efficiency of burner hearth, extends fire stroke, avoids imperfect combustion, can adapt to greatest extent burner hearth 11 it is smaller when
It needs.The PID controller uses full-automatic proportion adjustment, is conducive to timing monitoring, interlock protection, intelligence operation and automatic
Adjustment, has prevented maloperation, has prevented accident potential, ensure that the safe handling of entire boiler.Burner 2 is using process
The air progress of air preheater preheating is combustion-supporting, and the thermal efficiency of boiler can be made to further increase.Premixer 22 and mixed fan housing 21
Inner wall on be coated with fire resistant coating, can effectively enhance the heat intensity of the connecting flange of boiler body 1 and 23 junction of bellows,
Extend the service life of the boiler boiler, while burner 2 is suitable for vertical and horizontal installation product.Burner 2 passes through premix
Cyclone 26 and the PID controller realize 90% partly-premixed burning of air and combustion gas, can effectively reduce nitrogen oxidation
The discharge of object.
The tail portion of boiler is equipped with energy-saving appliance 3, and energy-saving appliance 3 is divided into 31 He of flue gas cooling chamber positioned at lower part in the vertical direction
Superposed hotair chamber 32 is separated between flue gas cooling chamber 31 and hotair chamber 32 by gas baffle 33.Air
The lower part for heating room 32 connects air intake passage 321, and top connects wind turbine 4 by air-out passage 322, and wind turbine 4 connects burner 2
Combustion air blast pipe 24, hotair chamber 32 preheat the combustion air for entering burner 2.
The center of gas baffle 33 is one piece of comb plate, comb joint 34, and fixed on comb plate, comb joint 34 there are one vertical heat exchangers 35, change
Hot device 35 includes several gravity-type heat exchanger tubes 351 being vertically arranged, and every gravity-type heat exchanger tube 351 runs through comb plate, comb joint 34.Cause
This comb plate, comb joint 34 divides heat exchanger 35 for two parts, and wherein top half is located in hotair chamber 32, and lower half portion is located at cigarette
In air cooling room 31.
The circumferential wall of flue gas cooling chamber 31 is equipped with off-gas recovery mouth 311 and flue gas emission mouth 312.Off-gas recovery mouth 311
Connect the exhanst gas outlet 13 of boiler body 1.
Condensation heating surface 36 and non-condensing heating surface 37 are equipped in flue gas cooling chamber 31.Wherein condensation heating surface 36, which is located at, changes
Between hot device 35 and flue gas emission mouth 312, non-condensing heating surface 37 is between heat exchanger 35 and off-gas recovery mouth 311.
Wherein, condensation heating surface 36 includes the first bottom header 361, the second bottom header 362, intermediate header 363 and top
Portion's header 364.If being equipped with the horizontal circumferential fin of first time condensation of dried layer between the first bottom header 361 and intermediate header 363
Tube layer 365, if being equipped with the horizontal circumferential finned tube of second time condensation of dried layer between the second bottom header 361 and intermediate header 363
Layer 366, if being equipped with the upper condensation circumferential direction fin tube layer 367 of dried layer level between intermediate header 363 and top header 364.
Every layer of circumferential fin tube layer 365 of first time condensation has quantity equal with every layer of upper condensation circumferential direction fin tube layer 367
And condensation circumferential direction finned tube arranged in parallel, the adjacent first time circumferential fin tube layer 365 of condensation and adjacent upper condensation
Circumferential fin tube layer 367 is that staggered floor is arranged.The circumferential fin tube layer of first time condensation of first bottom header 361 and lowermost end
Between 365, between adjacent first time condensation circumferential direction fin tube layer 365, first time condensation ring of intermediate header 363 and top
To between fin tube layer 365, between intermediate header 363 and the upper condensation circumferential direction fin tube layer 367 of lowermost end, adjacent upper condensation
Between circumferential fin tube layer 367, between top header 364 and the upper condensation circumferential direction fin tube layer 367 of top by with appoint
The circumferential finned tube quantity phase of condensation in the circumferential fin tube layer 365 of 367 or any first time condensation of circumferential fin tube layer is condensed on one
Deng condensation bend pipe 368 be connected to, between top header 364 and the first bottom header 361 formed with any first time condense
The equal warm water overcurrent of the circumferential finned tube quantity of condensation in circumferential fin tube layer 365 or the circumferential fin tube layer 367 of any upper condensation
Channel, warm water in the warm water flow channels is in the arbitrary two layers adjacent circumferential fin tube layer 365 of first time condensation or arbitrary
Flow direction in two layers of adjacent upper condensation circumferential direction fin tube layer 367 is opposite, extends warm water in this way in condensation heating surface
Flow in 36 realizes the abundant heat exchange with flue gas.And arbitrary two layers of adjacent circumferential fin tube layer 365 of first time condensation, with
And arbitrary two layers of adjacent upper condensation circumferential direction fin tube layer 367 is that staggered floor is arranged, condensation bend pipe 368 is made to be obliquely installed, this
Sample can also extend the length of condensation bend pipe 368, to further extend flow of the warm water in condensation heating surface 36.The present embodiment
In, the quantity of the warm water flow channels is three.
The condensation circumferential direction fin that every layer of second time condensation circumferential direction fin tube layer 366 has quantity equal and arranged in parallel
Pipe, adjacent two layers second time condensation circumferential direction fin tube layer 366 is staggered floor arrangement.Second bottom header 362 and lowermost end
Between second time condensation circumferential direction fin tube layer 366, between adjacent second time condensation circumferential direction fin tube layer 366, intermediate header 363
By condensing circumferential fin tube layer 366 with any second time between second time condensation circumferential direction fin tube layer 366 of top
The equal condensation bend pipe 368 of middle circumferential direction finned tube quantity connects, with the shape between the second bottom header 362 and intermediate header 363
At the warm water flow channels equal with the circumferential finned tube quantity of condensation in the circumferential fin tube layer 366 of any second time condensation, warm water
Flow direction in arbitrary two layers second time adjacent condensation circumferential direction fin tube layer 366 is opposite, extends warm water in this way and exists
The flow in heating surface 36 is condensed, realizes the abundant heat exchange with flue gas.And arbitrary two layers of adjacent circumferential fin of second time condensation
Tube layer 366 is also staggered floor arrangement, and condensation bend pipe 368 is made to be obliquely installed, and can also extend the length of condensation bend pipe 368 in this way, from
And further extend flow of the warm water in condensation heating surface 36.In the present embodiment, the quantity of the warm water flow channels is four.
The bottom for condensing heating surface 36 is equipped with condensed water tube socket.
Non-condensing heating surface 37 includes the first header 371 and the second header 372.First header 371 is located at the second header 372
Top.If being equipped with the non-condensing circumferential direction fin tube layer 373 of dried layer level between the first header 371 and the second header 372.Every layer
Non-condensing circumferential direction fin tube layer 373 is equipped with the equal and arranged in parallel non-condensing circumferential direction finned tube of quantity, the second header 372
Between the non-condensing circumferential direction fin tube layer 373 of lowermost end, between two layers of non-condensing circumferential direction fin tube layer 373 of arbitrary neighborhood,
Between the non-condensing circumferential direction fin tube layer 373 and the first header 371 of top by with any non-condensing circumferential direction fin tube layer
The non-condensing bend pipe 374 that non-condensing circumferential direction finned tube quantity is equal in 373 connects, in the second header 372 and the first header 371
Between form hot water flow channels equal with non-condensing circumferential direction finned tube quantity in any non-condensing circumferential direction fin tube layer 373,
Flow direction of the hot water in two layers of non-condensing circumferential direction fin tube layer 373 of arbitrary neighborhood is opposite, extends hot water in this way and exists
Flow in non-condensing heating surface 37 realizes the abundant heat exchange with flue gas.And arbitrary two layers of adjacent non-condensing circumferential direction finned tube
Layer 373 is also staggered floor arrangement.So that non-condensing bend pipe 374 is obliquely installed, can also extend the length of non-condensing bend pipe 374 in this way,
To further extend flow of the hot water in non-condensing heating surface 37.In the present embodiment, the quantity of the hot water flow channels is
Three.
The bottom of non-condensing heating surface 37 is equipped with non-condensing water tube base.
First bottom header 361 connects 5 water pumps, the first bottom header 361 and with the input end of the second bottom header 362
Warm water in two bottom headers 362 flows up through intermediate header 363 along warm water flow channels, eventually enters into top header
364.Top header 364 connects the second header 372, and the warm water in top header 364 enters the second header 372, the second header 372
Interior warm water flows upwardly into the first header 371 and by into flue gas into one along the hot water flow channels in non-condensing heating surface 37
Step is heated to be hot water, and the first header 371 is connected to the lower annular header 17 of boiler body 1, and the hot water in the first header 371 flows into pot
The lower annular header 17 of furnace body 1.
Wherein, the corrosion resistance for condensing the circumferential finned tube of the condensation employed in heating surface 36 and condensation bend pipe answers height
The corrosion resistance of non-condensing circumferential direction finned tube and non-condensing bend pipe employed in non-condensing heating surface 37.This is because cold
Water temperature in solidifying heating surface 36 is relatively low, and condensation heating surface 36 and the smoke contacts of low temperature generate a large amount of condensed waters, select corrosion resistant
Corrosion material.Water in non-condensing heating surface 37 has carried out heat exchange with high-temperature flue gas and water temperature is higher, non-condensing heating surface 37 with
High-temperature flue gas contact not will produce any condensate corrosion phenomenon, and the steel of less expensive can be used.Water is heated in non-condensing
After being further heated in face 37, into the lower annular header 17 of boiler body 1.
By non-condensing heating surface 37, heat exchanger 35 and the combination for condensing heating surface 36, it can both prevent energy-saving appliance 3 from occurring
Corrosion, while safety and reliability, the service life is longer.
The gravity-type heat exchanger tube 351 of heat exchanger 35 is using the flue gas heat from non-condensing heating surface 37 to hotair chamber
After cold air heating in 32, then make to enter burner 2, the property of gravity-type heat exchanger tube 351 itself by wind turbine 4 after being heated
Matter determines that the wall temperature of gravity-type heat exchanger tube 351 is higher, avoids and condensation occurs on gravity-type heat exchanger tube 351.
Energy-saving appliance 3, while the temperature and inflow temperature of the air into burner 2 are heated, it solves breakthroughly previous
Vertical gas boiler only heats the defect of the temperature into the air of burner 2, maximizes recycling heat, it is sleeping also to solve tradition
The shortcomings of rolled steel dosage caused by the single condensing recovery of formula gas fired-boiler is excessive and takes up a large area.
Energy-saving appliance 3 is both air preheater and flue gas cooling device, and into hot-water heating system.
A kind of Natural Circulation condensing boiler of the present invention further includes pedestal 7, platform staircase 71 and switch board 6.
Those of ordinary skill in the art it should be appreciated that more than embodiment be intended merely to illustrate the present invention,
And be not used as limitation of the invention, as long as in the spirit of the present invention, the change to embodiment described above
Change, modification will all be fallen within the scope of claims of the present invention.
Claims (9)
1. a kind of vertical Natural Circulation condensing boiler, including boiler body, it is characterised in that：
The boiler body includes burner hearth and the flue gas chamber positioned at the burner hearth radial outside, on the outer circle wall of the flue gas chamber
Equipped with exhanst gas outlet, there are smoke inlet on the inner peripheral wall of the flue gas chamber, the exhanst gas outlet and the smoke inlet it
Between the angle that deflects be more than 90 degree, the upper and lower ends of the flue gas chamber are respectively equipped with annular header and lower annular header；
Between the upper annular header and the lower annular header, decline tube bank connection, institute in tube bank sum aggregate by concentrating to rise
It includes common downcomer of the circle along the flue gas chamber circumference to state common downcomer beam, and the concentration rises tube bank and includes
Two circle the common downcomer beam diameter inwardly, it is described along the coaxially arranged concentration tedge of the circumference of the flue gas chamber
Concentrate the outer ring for rising tube bank and the common downcomer Shu Jun there are exhanst gas outlet described in face, the flue gas row being vertically arranged
Go out gap, described that the inner ring for rising tube bank is concentrated to be equipped with smoke inlet described in face, the flue gas being vertically arranged enters gap,
Water separator is equipped in the upper annular header, the water separator includes steam-water separation piece group, the vapour
Water separate sheet group includes several diametric(al)s along upper annular header steam-water separation piece arranged in parallel, arbitrary two panels phase
Steam-water separation channel is formed between the adjacent steam-water separation piece.
2. a kind of vertical Natural Circulation condensing boiler according to claim 1, it is characterised in that：The steam-water separation piece group
Both ends be equipped with fixed link, the steam-water separation piece group is fixed in the upper annular header by the fixed link.
3. a kind of vertical Natural Circulation condensing boiler according to claim 2, it is characterised in that：The steam-water separation piece group
In every steam-water separation piece be obliquely installed.
4. a kind of vertical Natural Circulation condensing boiler according to claim 1, it is characterised in that：It is set at the top of the burner hearth
There is burner.
5. a kind of vertical Natural Circulation condensing boiler according to claim 4, it is characterised in that：The burner include from
Under supreme mixed fan housing, premixer and the bellows being sequentially coaxially arranged, the bellows are fixed on the top of the burner hearth, the premix
Room and the mixed fan housing stretch into the burner hearth, and combustion air blast pipe, the bellows top surface are connected on the outer circle wall of the bellows
Center be plugged with a main fuel gas inlet pipe for stretching into the mixed fan housing vertically, the main fuel gas inlet pipe and the combustion air
Set between blast pipe there are one stretching into the premixed swirl device of the mixed fan housing vertically, the premixed swirl device and the combustion air into
The burning torch for stretching into the mixed fan housing vertically is equipped between air hose.
6. a kind of vertical Natural Circulation condensing boiler according to claim 4, it is characterised in that：The vertical Natural Circulation is cold
Solidifying boiler further includes energy-saving appliance, and the energy-saving appliance by gas baffle is divided into superposed hotair chamber and positioned at lower part
Flue gas cooling chamber, the flue gas cooling chamber is equipped with flue gas emission mouth and is connected to the off-gas recovery mouth of the exhanst gas outlet, described
For hotair chamber equipped with air intake passage and the air-out passage for being connected to the burner, the center of the energy-saving appliance, which is equipped with, runs through the cigarette
The heat exchanger of gas baffle；
The non-condensing heating surface being equipped in the flue gas cooling chamber between the off-gas recovery mouth and the heat exchanger, and
Condensation heating surface between the flue gas emission mouth and the heat exchanger, the condensation heating surface, the heat exchanger and institute
The temperature for stating non-condensing heating surface is raised successively.
7. a kind of vertical Natural Circulation condensing boiler according to claim 6, it is characterised in that：In the gas baffle
The heart is comb plate, comb joint, and the heat exchanger includes several gravity-type heat exchanger tubes for running through the comb plate, comb joint vertically.
8. a kind of vertical Natural Circulation condensing boiler according to claim 6, it is characterised in that：The condensation heating surface,
Including bottom header, intermediate header and top lower header, by replacing successively between the bottom header and the intermediate header
The lower condensation circumferential direction fin tube layer being arranged is connected to condensation bend pipe, by successively between the intermediate header and the top header
The upper condensation circumferential direction fin tube layer being arranged alternately is connected to condensation bend pipe, the also outer water pump of bottom header.
9. a kind of vertical Natural Circulation condensing boiler according to claim 8, it is characterised in that：The non-condensing heating surface
Including the first header and the second header, first header is located at the top of second header, first header and described
It is connected to non-condensing bend pipe by the non-condensing circumferential direction fin tube layer being arranged alternately successively between second header, second header
It is connected to the top header of the condensation heating surface, first header is connected to the lower annular header of the boiler body.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610082054.6A CN105571132B (en) | 2016-02-05 | 2016-02-05 | A kind of vertical Natural Circulation condensing boiler |
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| CN201610082054.6A CN105571132B (en) | 2016-02-05 | 2016-02-05 | A kind of vertical Natural Circulation condensing boiler |
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| CN105571132A CN105571132A (en) | 2016-05-11 |
| CN105571132B true CN105571132B (en) | 2018-08-31 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107781800A (en) * | 2016-08-31 | 2018-03-09 | 上海扬诺锅炉制造有限公司 | A kind of multipurpose exempts from the vertical water-tube Natural Circulation steam boiler of pot inspection |
| CN111981455B (en) * | 2020-08-10 | 2022-04-01 | 浙江特富发展股份有限公司 | Forced recirculation water pipe steam boiler system and operation method thereof |
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| JP2006153344A (en) * | 2004-11-29 | 2006-06-15 | Matsushita Electric Ind Co Ltd | Combustion device |
| EP2290301A2 (en) * | 2009-07-08 | 2011-03-02 | Robert Bosch GmbH | Condensing boiler |
| CN202125938U (en) * | 2011-06-10 | 2012-01-25 | 安徽海螺川崎节能设备制造有限公司 | Steam-water separation device for steam pocket |
| CN202521859U (en) * | 2012-03-28 | 2012-11-07 | 西安交通大学 | Tubular condensation boiler |
| CN103032953A (en) * | 2012-12-21 | 2013-04-10 | 安徽惠创锅炉容器制造有限公司 | Vertical boiler |
| CN205536547U (en) * | 2016-02-05 | 2016-08-31 | 上海工业锅炉研究所 | Vertical natural circulation condensing boiler |
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2016
- 2016-02-05 CN CN201610082054.6A patent/CN105571132B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006153344A (en) * | 2004-11-29 | 2006-06-15 | Matsushita Electric Ind Co Ltd | Combustion device |
| EP2290301A2 (en) * | 2009-07-08 | 2011-03-02 | Robert Bosch GmbH | Condensing boiler |
| CN202125938U (en) * | 2011-06-10 | 2012-01-25 | 安徽海螺川崎节能设备制造有限公司 | Steam-water separation device for steam pocket |
| CN202521859U (en) * | 2012-03-28 | 2012-11-07 | 西安交通大学 | Tubular condensation boiler |
| CN103032953A (en) * | 2012-12-21 | 2013-04-10 | 安徽惠创锅炉容器制造有限公司 | Vertical boiler |
| CN205536547U (en) * | 2016-02-05 | 2016-08-31 | 上海工业锅炉研究所 | Vertical natural circulation condensing boiler |
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| CN105571132A (en) | 2016-05-11 |
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Address after: 201114 Room 101 and 201, 4 building, 138 new Chun Ring Road, Minhang District, Shanghai. Applicant after: Shanghai Industrial Boiler Research Institute Co., Ltd. Address before: No. 297, Bao Chang Road, Zhabei District, Shanghai Applicant before: Shanghai Industrial Boiler Research Institute |
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