CN106801992A - A kind of New-type boiler - Google Patents
A kind of New-type boiler Download PDFInfo
- Publication number
- CN106801992A CN106801992A CN201710090139.3A CN201710090139A CN106801992A CN 106801992 A CN106801992 A CN 106801992A CN 201710090139 A CN201710090139 A CN 201710090139A CN 106801992 A CN106801992 A CN 106801992A
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- Prior art keywords
- hot cell
- heat
- takes
- new
- type boiler
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Classifications
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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
- F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
- F24H1/22—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating
- F24H1/24—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating with water mantle surrounding the combustion chamber or chambers
- F24H1/30—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating with water mantle surrounding the combustion chamber or chambers the water mantle being built up from sections
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Pump Type And Storage Water Heaters (AREA)
Abstract
The invention discloses a kind of New-type boiler, it is provided with multiple and takes hot cell, and respectively take hot cell and can independently use, after series connection, burnt in the combustion zone of the long-acting heat supply room flue gas of generation of fuel carries heat and takes hot cell into next stage, and can extend through the time by depositing smoke chamber in final stage takes hot cell, the remaining time in hot cell is being taken so as to extend partial heat, heat-absorption water is obtained more sufficient heat exchange with flue gas, and then reduce thermal loss, improve heat utilization rate.
Description
Technical field
The present invention relates to heating system technical field, and in particular to a kind of New-type boiler.
Background technology
Boiler is a kind of energy conversion, and it changes into certain heat energy the chemical energy of inner fuel, electric energy
Steam, high-temperature water or organic heat carrier are simultaneously exported.Boiler includes taking hot cell, combustion zone and pipeline, and fuel burns in combustion zone and produces
Raw flue gas is discharged through flue, and realizes heat exchange with the water in pipeline in the process of circulation.But, boiler of the prior art
Only set it is single take hot cell, this take hot cell set one group of intake-outlet, at combustion zone wall whole covering and heat insulatings layer, and set
There are multiple fuel filling ports and exhaust opening；Which results in heat, the remaining time in hot cell is shorter taking, the table of the tubing that absorbs heat
Area is smaller so that heat scatters and disappears larger, and utilization efficiency of heat energy is relatively low.
In view of this, it is special to propose the present invention.
The content of the invention
It is an object of the invention to provide a kind of New-type boiler, the remaining time in hot cell is being taken to extend heat, made
Heat-absorption water obtains more sufficient heat exchange with flue gas, so as to reduce thermal loss, improves heat utilization rate.
To achieve the above object, the present invention also provides a kind of New-type boiler, including multistage be in series take hot cell, respectively take heat
The smoke inlet that the exhaust opening of room takes hot cell with next stage is connected, and the hot cell that takes includes long-acting heat supply room and at least one-level is common
Take hot cell, it is each described common to take hot cell and be respectively equipped with independent water inlet and independent delivery port；Combustion zone and fuel storage region
Form the long-acting heat supply room；
The chopped-off head taken in hot cell takes has combustion zone in hot cell, its exhaust opening is located at the side wall hypomere above fire bars,
The coal ash storage area being connected with air inlet ash hole is provided with below the combustion zone, the combustion zone is deposited with the coal ash
Mutually separated by fire bars between area, exhaust opening and fuel filling port are only arranged on the burning wall of the combustion zone periphery.
Further, the common final stage taken in hot cell takes and be provided with hot cell one or more and deposit smoke chamber, the end
Level takes and be provided with hot cell multistage fin, and fin is formed below to deposit smoke chamber, deposits between smoke chamber to have described in adjacent two and leads to for flue gas
The passage crossed.
Further, each position relationship for taking between hot cell be it is following any one, any two or two or more groups
Close：
The hot cells that take at different levels respectively take the highly equal of hot cell in transversal arrangement；Or,
In mode is longitudinally arranged, next stage takes hot cell and takes hot cell higher than upper level heat collectors at different levels；Or,
Heat collectors at different levels take hot cell one-level disposed thereon and take hot cell and its next stage in mode, intergrade is alternately longitudinally arranged
Take the lower section in hot cell.
Further, each intergrade takes that at least one of hot cell is interior to be provided with snakelike heat collector, the snakelike heat collector
Water plate including multigroup lateral arrangement, forms snakelike cigarette channel excessively between each adjacent water plate.
Further, the intergrade is additionally provided with honeycomb heat collector in taking hot cell.
Further, also including deflector, the deflector be arranged at it is described it is common take the water lines at different levels in hot cell, with
This is taken the part water in hot cell and form Z-shaped circulation.
Further, heat absorption tubing is set in the side of the common exhaust opening for taking hot cell.
Further, the opposite side of the common exhaust opening for taking hot cell sets smoke-choking utensil.
Further, the heat absorption tubing includes horizontal water pipe and vertical water pipe with predetermined angle, and described vertical
The upper end of water pipe is connected with the top of combustion chamber, and lower end is connected with the wall of combustion chamber；Or the heat absorption tubing is vertically arranged
Straight tube or bend pipe, the heat absorption tubing inwardly or downwardly extends from the exhaust opening.
Further, heat-insulation layer is provided with the wall of the combustion zone, the heat-insulation layer is only arranged at the wall
A part；The heat-insulation layer fits in the inner side of the wall, is partly or entirely embedded in the holding tank opened up on the wall
In.
The New-type boiler sets multiple and takes hot cell, and after series connection, fuel burns what is produced in the combustion zone of long-acting heat supply room
Flue gas carries heat and takes hot cell into next stage, and can extend through the time by depositing smoke chamber in final stage takes hot cell, so that
Extend heat and taking the remaining time in hot cell, water is obtained more sufficient heat exchange with the heat energy of flue gas, and then reduce
Thermal loss, improves heat utilization rate.
Additional aspect of the invention and advantage will be set forth in part in the description, and will partly become from the following description
Obtain substantially, or recognized by practice of the invention.
Brief description of the drawings
Fig. 1-Fig. 4 is the structural representation of New-type boiler provided by the present invention.
Wherein,
The long-acting heat supply rooms of 0-
1- chopped-off heads take hot cell
2- second takes hot cell
3- final stages take hot cell
4- deflectors
5- heat absorption tubing
6- smoke-choking utensils
The water inlets of 7- first
8- primary outlets
The water inlets of 9- second
The delivery ports of 10- second
11- combustion zones
12- air inlet ash holes
13- coal ash storage areas
14- fire bars
15- hinders smoke pipe
16- fuel filling ports
17- combustion zones top
18- water main inlet ports
The delivery ports of 19- first
20- exhaust openings
31- deposits smoke chamber
32- fins
211- water plates
212- is snakelike to cross cigarette channel
22- honeycomb heat collectors
23- fuel storage regions
Specific embodiment
Embodiments of the invention are described below in detail, the example of the embodiment is shown in the drawings, wherein from start to finish
Same or similar label represents same or similar element or the element with same or like function.Below with reference to attached
It is exemplary to scheme the embodiment of description, it is intended to for explaining the present invention, and be not considered as limiting the invention.
As Figure 1-4, wherein, each accompanying drawing be New-type boiler provided by the present invention it is various takes hot cell combination, inhale
The example of the various different settings of heat pipe material, only implementation method, are not intended to limit the protection domain of this application.
In a kind of specific embodiment, New-type boiler provided by the present invention takes hot cell including what multistage was in series, respectively
The smoke inlet that the exhaust opening and next stage for taking hot cell take hot cell is connected, and the hot cell that takes includes long-acting heat supply room 0 and at least one
Level commonly takes hot cell, wherein long-acting heat supply room 0 can take hot cell as chopped-off head, it is each it is described commonly take hot cell be respectively equipped with it is independent
Water inlet and independent delivery port, wherein primary outlet 8 can be steam (vapor) outlet or water out；Respectively take hot cell and there was only entery and delivery port,
So that hot water can only be worked out by taking hot cell most hyperpyrexia, hot-cast socket effect is improved；Wherein, there is combustion in long-acting heat supply room 0
Area 11 and fuel storage space 23 are burnt, the exhaust opening 20 of long-acting heat supply room 0 is located at the side wall hypomere of the top of fire bars 14, the burning
The lower section in area 11 is provided with the coal ash storage area 13 being connected with air inlet ash hole 12, and the air inlet ash hole 12 acts also as air inlet
16, mutually separated by fire bars 14 between the combustion zone 11 and the coal ash storage area 13；The exhaust opening is arranged on long-acting confession
The side wall hypomere in hot cell 0.Fuel is burnt at combustion zone 11 again after being inserted by fuel filling port 16, and fuel filling port 16 is covered
On, part of fuel is placed at fuel storage space 23, and cigarette can just be discharged from exhaust opening 20, it is ensured that long-time non-interruptible supply
Efficient heat energy.
Final stage in the multistage heat collector takes and is provided with one or more in hot cell 3 and deposits smoke chamber 31, and the final stage takes heat
Be provided with multistage fin 32 in room 3, the cavity between adjacent two fin 32 formed it is described deposit smoke chamber 31, stretched out taking hot cell and interlocking
One section of fin, stretches out fin terminal less than root or a fin cavity formed below, and partial heat energy is stored below fin 32
Deposit in smoke chamber.The long-acting heat supply room can incessantly supply thermal energy high for a long time.
The position of above-mentioned snakelike heat collector is not fixed, and can be arranged on intergrade and takes any level or multistage in hot cell and takes hot cell
In.Above-mentioned common preheating chamber at different levels can be used alone or in combination.
Above-mentioned fin 32 can be the various modes such as horizontal-extending linear pattern, apsacline or arc line shaped, can be according to reality
Set using selection is needed.
Hot cell 3 being taken in final stage and resistance smoke pipe 15 being set, the resistance smoke pipe downwards or extends internally at exhaust opening 20.
The New-type boiler sets multiple and takes hot cell, and chopped-off head is taken after hot cell can be independently operated, series connection, and fuel is in combustion zone
The flue gas that burning is produced in 11 carries heat and takes hot cell into next stage, and can be in final stage takes hot cell 3 by depositing smoke chamber 31
The time is extended through, the remaining time in hot cell is being taken so as to extend partial heat, water and the heat energy of flue gas is obtained more
Sufficiently exchange, and then reduce thermal loss, improve heat utilization rate.
The need for being arranged according to space, respectively taking hot cell can have the various layouts in upper and lower, left and right, height etc., no matter many
Which kind of arrangement is level take between taking hot cell, within protection scope of the present invention.Specifically between each heat collector
Position relationship be it is following any one, any two or two or more combinations：The hot cells that take at different levels respectively take in transversal arrangement
Hot cell it is highly equal；Or, heat collectors at different levels are in mode is longitudinally arranged, next stage takes hot cell and takes hot cell higher than upper level；Or, each
In being alternately longitudinally arranged mode, intergrade takes that hot cell one-level disposed thereon takes hot cell and its next stage is taken under hot cell to level heat collector
Side.
Thermal effect is taken in order to further increase, intergrade takes that at least one of hot cell 2 is interior to be provided with snakelike heat collector 21,
The snakelike heat collector 21 is formed by multigroup laterally staggered one section of water plate 211 for stretching out, and is formed between each adjacent water plate 211
Snakelike to cross cigarette channel 212, when by snakelike heat collector 21, flue gas need to pass through by snakelike cigarette channel 212 of crossing, so that further
The area of heat exchange is improve, remaining time is increased.
Further, the intergrade is additionally provided with honeycomb heat collector 22 in taking hot cell 2, and honeycomb heat collector is specially in water
Multiple hole forms are set on layer, to improve heat-exchange capacity.
In above-mentioned specific embodiment, in order to improve water mobility, (chopped-off head can be removed in the water lines at different levels for taking hot cell
Take outside hot cell) some deflectors 4 are set, the deflector 4 is disposed in water lines, and the deflector 4 of the left and right sides replaces
Distribution, so that the most of water taken in hot cell forms Z-shaped circulation.
Be also provided with the tubing 5 that absorbs heat in the side of the common exhaust opening for taking hot cell, the exhaust opening it is another
Side sets smoke-choking utensil 6, and it can be sheet material or other various forms, and part cigarette turns heat by being deposited in combustion zone top 17
Change.By the design of absorb heat tubing 5 and smoke-choking utensil 6, the RT and endotherm area of further prolongation heat, so as to carry
Highly endothermic ability.Specifically, heat absorption tubing 5 can have various set-up modes, for example, heat absorption tubing 5 includes thering is predetermined angle
Horizontal water pipe and vertical water pipe, and the upper end of the vertical water pipe is connected with the top of combustion zone, horizontal water pipe and vertical water
Pipe can be with L-shaped or c-type.Or, heat absorption tubing 5 is vertically arranged tubing, and the heat absorption tubing 5 is inside from the exhaust opening
Or extend downwardly；Again or, heat absorption tubing is one section of tubing stretching out of combustion zone top down, tubing lower end and wall intercommunication.
Smoke-choking utensil 6 can be sheet material, triangle or other various shapes structure types.
In order to realize improve heat exchanger effectiveness purpose, can also by final stage take hot cell exhaust opening chimney downwards or to
Inside stretch out one section to come, so that cigarette storage in part extends heat exchanger time in the top for taking hot cell.
Traditional wall of combustion zone 11 is from top to bottom all coated with heat-insulation layer 15, which results in subtracting for endotherm area
Small, in order to overcome this problem, in the New-type boiler that the present invention is provided, heat-insulation layer is only arranged at a part for the wall, from
And reduce the influence to heat absorption efficiency.Specifically, the heat-insulation layer can fit in the inner side of the wall, be fitted in wall
The outside of wall, or, being partly or entirely embedded in the holding tank opened up on the wall.
It should be further stated that, in above-mentioned New-type boiler, the walking manner of its flue gas is as follows：
Fuel (such as coal) is filled into combustion zone 11 by the fuel filling port 16 that chopped-off head takes hot cell 1, and in the top of fire bars
Storage, is exported into air by air intake and coal ash, and the insulation of heat-insulation layer can ensure that coal fully burns, but also limit wall absorption
The amount of heat energy, coal produces the flue gas for carrying heat energy, the flue gas to move towards the wall without heat-insulation layer and by this section of wall in burning
Wall draws heat energy, when flue gas travels up to heat absorption 5 bottom of tubing, the direction of travel of changing section flue gas, by the tubing 5 that absorbs heat
Heat energy is drawn, flue gas is changed circulating direction after reaching combustion zone top 17, draws heat energy, and flue gas reaches resistance by exhaust opening 20
The position of cigarette device 6, partial fume is prevented from passing through, and retention makes top more fully draw heat energy at top；Flue gas moves towards next stage
Hot cell and snakelike heat collector 21 are taken, flue gas is changed the direction of walking by water plate, increased the position for drawing heat energy, taken by snakelike
Hot device 21 draws heat energy, and then flue gas has arrived honeycomb heat collector 22, and changes walking manner by honeycomb heat collector 22, is drawn heat
Can, taken through multistage after hot cell takes heat, final stage is reached by outlet flue and takes hot cell 3, storing partial fume through depositing smoke chamber 31 inhales
Heat energy is taken, last flue gas is drained into air by exhaust opening, completes task.
It is pointed out that multistage described in text takes hot cell takes hot cell for two or more.
The walking manner of water is as follows：
Heat transfer water can be water or other liquid, and water is commonly used in boiler as heat transfer water, therefore, following water walking sides
The description of formula is by taking water as an example.Because the water of similar temperature absorbs, heat energy conversion ratio is low, and the heat energy that the big water of temperature spread absorbs is
Can be high, water is flowed into by water main inlet port 18, water is taken most of water in hot cell in final stage by the water conservancy diversion of deflector 4 and is formed Z-shaped stream
It is dynamic,；The delivery port of current direction the 3rd, water flows to the second water inlet 9 again, and water flows to the second delivery port 10 by the water conservancy diversion of deflector 4,
The first water inlet of current direction 7, flows to primary outlet, and work is gone to the place for needing, and the main import of water is flowed to after having worked, and follows according to this
Ring.
In the description of the invention, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width ",
" thickness ", " on ", D score, "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom " " interior ", " outward ", " up time
The orientation or position relationship of the instruction such as pin ", " counterclockwise ", " axial direction ", " radial direction ", " circumference " be based on orientation shown in the drawings or
Position relationship, is for only for ease of the description present invention and simplifies description, must rather than the device or element for indicating or imply meaning
With specific orientation, with specific azimuth configuration and operation, therefore must be not considered as limiting the invention.
In the present invention, unless otherwise clearly defined and limited, term " installation ", " connected ", " connection ", " fixation " etc.
Term should be interpreted broadly, for example, it may be fixedly connected, or be detachably connected, or integrally；Can be that machinery connects
Connect, or electrically connect；Can be joined directly together, it is also possible to be indirectly connected to by intermediary, can be in two elements
The connection in portion or two interaction relationships of element.For the ordinary skill in the art, can be according to specific feelings
Condition understands above-mentioned term concrete meaning in the present invention.
In the present invention, unless otherwise clearly defined and limited, fisrt feature second feature " on " or D score can be with
It is the first and second feature directly contacts, or the first and second features are by intermediary mediate contact.And, fisrt feature exists
Second feature " on ", " top " and " above " but fisrt feature are directly over second feature or oblique upper, or be merely representative of
Fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " lower section " and " below " can be
One feature is immediately below second feature or obliquely downward, or is merely representative of fisrt feature level height less than second feature.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means to combine specific features, structure, material or spy that the embodiment or example are described
Point is contained at least one embodiment of the invention or example.And, the specific features of description, structure, material or feature
Can in an appropriate manner be combined in any one or more embodiments or example.Additionally, in the case of not conflicting, this
The technical staff in field can be by the different embodiments or example described in this specification and the spy of different embodiments or example
Levy and be combined and combine.
Although embodiments of the invention have been shown and described above, it is to be understood that above-described embodiment is example
Property, it is impossible to limitation of the present invention is interpreted as, one of ordinary skill in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, changes, replacing and modification.
Claims (10)
1. a kind of New-type boiler, it is characterised in that take hot cell including what multistage was in series, respectively take the exhaust opening and next stage in hot cell
The smoke inlet for taking hot cell is connected, described to take hot cell including long-acting heat supply room and at least one-level commonly takes hot cell, it is each it is described commonly
Take hot cell and be respectively equipped with independent water inlet and independent delivery port；Combustion zone and fuel storage region form the long-acting heat supply
Room；
The chopped-off head taken in hot cell takes has combustion zone in hot cell, its exhaust opening is located at the side wall hypomere above fire bars, described
Be provided with the coal ash storage area being connected with air inlet ash hole below combustion zone, the combustion zone and the coal ash storage area it
Between mutually separated by fire bars, exhaust opening and fuel filling port are only arranged on the burning wall of the combustion zone periphery.
2. New-type boiler according to claim 1, it is characterised in that the common final stage taken in hot cell takes in hot cell and sets
It is equipped with one or more and deposits smoke chamber, the final stage takes and be provided with hot cell multistage fin, fin is formed below deposits smoke chamber, adjacent two
It is described to deposit the passage that between smoke chamber there is confession flue gas to pass through.
3. New-type boiler according to claim 2, it is characterised in that each position relationship taken between hot cell is following
Any one, any two or two or more combinations：
The hot cells that take at different levels respectively take the highly equal of hot cell in transversal arrangement；Or,
In mode is longitudinally arranged, next stage takes hot cell and takes hot cell higher than upper level heat collectors at different levels；Or,
In being alternately longitudinally arranged mode, intergrade takes that hot cell one-level disposed thereon takes hot cell and its next stage takes heat to heat collectors at different levels
The lower section of room.
4. New-type boiler according to claim 2, it is characterised in that each intergrade takes the interior setting at least one of hot cell
There is snakelike heat collector, the snakelike heat collector includes the water plate of multigroup lateral arrangement, forms snakelike between each adjacent water plate
Cross cigarette channel.
5. New-type boiler according to claim 4, it is characterised in that the intergrade to take and be additionally provided with honeycomb in hot cell and take
Hot device.
6. New-type boiler according to claim 2, it is characterised in that also including deflector, the deflector is arranged at institute
State it is common take the water lines at different levels in hot cell so that the part water taken in hot cell forms Z-shaped circulation.
7. the New-type boiler according to claim any one of 1-6, it is characterised in that in the common exhaust opening for taking hot cell
Side set heat absorption tubing.
8. New-type boiler according to claim 7, it is characterised in that the opposite side of the common exhaust opening for taking hot cell sets
Put smoke-choking utensil.
9. New-type boiler according to claim 8, it is characterised in that the heat absorption tubing includes the horizontal stroke with predetermined angle
Upper end to water pipe and vertical water pipe, and the vertical water pipe is connected with the top of combustion chamber, the wall phase of lower end and combustion chamber
Even；Or the heat absorption tubing is vertically arranged straight tube or bend pipe, the heat absorption tubing inwardly or downwardly prolongs from the exhaust opening
Stretch.
10. the New-type boiler according to claim any one of 1-6, it is characterised in that set on the wall of the combustion zone
There is heat-insulation layer, the heat-insulation layer is only arranged at a part for the wall；The heat-insulation layer fits in the inner side of the wall, portion
Divide or be all embedded in the holding tank opened up on the wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710090139.3A CN106801992A (en) | 2017-02-20 | 2017-02-20 | A kind of New-type boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710090139.3A CN106801992A (en) | 2017-02-20 | 2017-02-20 | A kind of New-type boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106801992A true CN106801992A (en) | 2017-06-06 |
Family
ID=58988606
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710090139.3A Pending CN106801992A (en) | 2017-02-20 | 2017-02-20 | A kind of New-type boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106801992A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4438728A (en) * | 1980-12-29 | 1984-03-27 | Fracaro Eugene E | Multi-stage hot water heating apparatus |
| CN2192838Y (en) * | 1994-08-29 | 1995-03-22 | 玉田县中玉常压锅炉研究所 | Folded plate whirlwind type atmospheric boiler |
| CN202328785U (en) * | 2011-12-07 | 2012-07-11 | 苗苏宁 | Gas-fired multi-stage condensation type normal pressure water heating boiler |
| CN103047762A (en) * | 2013-01-30 | 2013-04-17 | 李国栋 | Rapid water heating double-layer water box |
| CN202938507U (en) * | 2012-11-25 | 2013-05-15 | 新疆福克油品股份有限公司 | Multi-stage heat carrier boiler using high-temperature heat energy of discharged smoke |
| CN105202512A (en) * | 2015-10-21 | 2015-12-30 | 邢献军 | Efficient heat exchanging boiler device |
-
2017
- 2017-02-20 CN CN201710090139.3A patent/CN106801992A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4438728A (en) * | 1980-12-29 | 1984-03-27 | Fracaro Eugene E | Multi-stage hot water heating apparatus |
| CN2192838Y (en) * | 1994-08-29 | 1995-03-22 | 玉田县中玉常压锅炉研究所 | Folded plate whirlwind type atmospheric boiler |
| CN202328785U (en) * | 2011-12-07 | 2012-07-11 | 苗苏宁 | Gas-fired multi-stage condensation type normal pressure water heating boiler |
| CN202938507U (en) * | 2012-11-25 | 2013-05-15 | 新疆福克油品股份有限公司 | Multi-stage heat carrier boiler using high-temperature heat energy of discharged smoke |
| CN103047762A (en) * | 2013-01-30 | 2013-04-17 | 李国栋 | Rapid water heating double-layer water box |
| CN105202512A (en) * | 2015-10-21 | 2015-12-30 | 邢献军 | Efficient heat exchanging boiler device |
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Application publication date: 20170606 |