CN104949106B - Biomass and coal boiler for dual purpose - Google Patents
Biomass and coal boiler for dual purpose Download PDFInfo
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- CN104949106B CN104949106B CN201510272848.4A CN201510272848A CN104949106B CN 104949106 B CN104949106 B CN 104949106B CN 201510272848 A CN201510272848 A CN 201510272848A CN 104949106 B CN104949106 B CN 104949106B
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Abstract
A kind of biomass and coal boiler for dual purpose,Including the burner that feeds,Heater,Negative pressure generating device,Charging burner is connected with heater,Negative pressure generating device is connected with heater,Charging burner is used for burn coal or biomass,And caused high-temperature flue gas is delivered in heater,Heater has the column flue being coaxially disposed,Column water annulus,Column annular quirk,Column flue connects with column annular quirk,Negative pressure generating device is connected with column flue,High-temperature flue gas inlet port of the column annular quirk also with the burner that feeds is connected,The column annular quirk of heater is used to make high-temperature flue gas fully burn,And the heat and high-temperature flue gas for carrying high-temperature flue gas fully burn caused heat transfer to the heat carrier in column water annulus,The column flue of heater is used to collect the flue gas in column annular quirk,And flue gas is discharged in the presence of negative pressure generating device.
Description
Technical field
The present invention relates to a kind of boiler, more particularly to a kind of biomass and coal boiler for dual purpose.
Background technology
Boiler is a kind of energy conversion, and the energy inputted to boiler has chemical energy, electric energy in fuel, boiler output
Steam, high-temperature water or organic heat carrier with certain heat energy.Caused hot water or steam can directly be industrial production in boiler
With people's lives provide needed for heat energy, can also be converted to mechanical energy by Steam Power Equipment, or again by generator by machinery
Electric energy can be converted to.The boiler for providing hot water is referred to as hot-water boiler, is mainly used in living, also there is a small amount of application in industrial production.
The boiler for producing steam is referred to as steam boiler, is often simply called boiler, is used for thermal power station, ship, locomotive and industrial and mining enterprises.
Coal-burning boiler is the boiler using coal as fuel, by fire coal in burner hearth（Combustion chamber）Middle combustion heat release amount, heat
Matchmaker's water or other organic heat carriers are heated to the thermal powerplant of certain temperature.Coal-burning boiler classification by use can be divided into fire coal
Drinking water boiler, coal-fired hot-water boiler, coal-fired steam boiler and coal burning heat-conducting oil boiler.Coal-fired hot-water boiler is set generally according to normal pressure
Meter, body of heater top are provided with atmosphere entry, the operation of boiler no pressure, burnt safe and reliable to operation.
However, there is following technical problem in existing coal-burning boiler：Because the not all heat of coal-burning boiler all has
Effect conversion, some reactive power consumption, and current coal-fired hot-water boiler generally existing internal structure is unreasonable, arrangement is not tight
Gather, the problems such as flue gas flow is short, and heating surface area is small, cause that boiler heat-transfer effect is poor, and firing rate is slow, exhaust gas volumn is big, carrying
Heat is high, causes boiler thermal output low, high energy consumption can only be using coal as fuel, and can not be fired biomass as fuel
Burn.
The content of the invention
In view of this, it is necessary to which the biomass that a kind of thermal efficiency is high and biomass can be burnt as fuel is provided
With coal boiler for dual purpose.
A kind of biomass and coal boiler for dual purpose, including charging burner, heater, negative pressure generating device, charging combustion
Burn device to be connected with heater, negative pressure generating device is connected with heater, and negative pressure generating device is used to make charging burning dress
Put, negative pressure is produced in heater, charging burner is used for burn coal or biomass, and caused high-temperature flue gas is delivered to
In heater, heater has column flue, column water annulus, the column annular quirk being coaxially disposed, column flue
Connected with column annular quirk, negative pressure generating device is connected with column flue, column annular quirk also with charging burner
High-temperature flue gas inlet port connects, and the column annular quirk of heater is used to make high-temperature flue gas fully burn, and by high-temperature flue gas
The heat and high-temperature flue gas of carrying fully burn caused heat transfer to the heat carrier in column water annulus, heater
Column flue be used to collect flue gas in column annular quirk, and flue gas is discharged in the presence of negative pressure generating device.
In above-mentioned biomass and coal boiler for dual purpose, charging burner is connected with heater, and negative pressure generating device is with adding
Thermal connects, and negative pressure generating device is used to make to produce negative pressure in charging burner, heater, and charging burner is used for
Burning coal or biomass, and caused high-temperature flue gas is delivered in heater, heater has the column being coaxially disposed
Flue, column water annulus, column annular quirk, column flue connect with column annular quirk, negative pressure generating device and column
Flue is connected, and high-temperature flue gas inlet port of the column annular quirk also with the burner that feeds is connected, the column annular of heater
Quirk is used to make high-temperature flue gas fully burn, and heat and high-temperature flue gas that high-temperature flue gas is carried fully burn caused heat
The heat carrier in column water annulus is passed to, due to the column annular flame path structure of heater, adds the length of quirk
Degree and the contact area of quirk and water channel, so ensure that high-temperature flue gas caused by fuel combustion fills again in column annular quirk
Divided combustion, while cause caused heat timely to pass to heat carrier by the contact area of increase, and then improve boiler
Firing rate and the efficiency of heating surface.
Figure of description
Fig. 1 is the biomass of a better embodiment and the structural representation of coal boiler for dual purpose.
Fig. 2 is biomass and the cross section structure schematic diagram of coal boiler for dual purpose in Fig. 1.
Fig. 3 is the structural representation of the closure in Fig. 1 with exhaust outlet.
Fig. 4 is the structural representation of the closure in Fig. 1 with the first oxygenating air mating hole.
Fig. 5 is the structural representation of another angle of the closure in Fig. 1 with the first oxygenating air mating hole.
In figure：Biomass and coal boiler for dual purpose 10, charging burner 20, feeding chamber 21, high-temperature flue gas inlet port 210,
Combustion air hole 211, fire grate 22, deslagging device 23, spiral drawing slag machine 24, heater 30, interwined dragon shape heated body 31, tail gas gather
Collector 310, guiding port 3101, heat exchanger chamber 3102, poly- fire tube 311, guiding port 3111, heat exchanger chamber 3112, logical fire tube 312,
Guiding port 3121, guiding entrance 3122, guiding outlet 3123, heat exchanger chamber 3124, safety vent 3125, barrier 313, wall of igniting
314th, closure 32, heat carrier house cavity 320, exhaust outlet 321, closure 33, heat carrier and house cavity 330, first
Oxygenating air mating hole 332, hole 333 of scratching in the ashes, cover plate 334, the second combustion air mating hole 335, negative pressure generating device 40, desulfurization
Equipment 50.
Embodiment
Fig. 1 and Fig. 2 is refer to, biomass and coal boiler for dual purpose 10 include charging burner 20, heater 30, negative pressure
Generation device 40, charging burner 20 are connected with heater 30, and negative pressure generating device 40 is connected with heater 30, negative pressure
Generation device 40 is used to make to produce negative pressure in charging burner 20, heater 30, and charging burner 20 is used for the coal that burns
Or biomass, and caused high-temperature flue gas is delivered in heater 30, heater 30 has the column cigarette being coaxially disposed
Road, column water annulus, column annular quirk, column flue connect with column annular quirk, negative pressure generating device 40 and column
Flue is connected, and column annular quirk is connected with the high-temperature flue gas inlet port for the burner 20 that feeds, the column ring of heater 30
Shape quirk is used to make high-temperature flue gas fully burn, and heat and high-temperature flue gas that high-temperature flue gas is carried fully burn caused heat
Amount passes to the heat carrier in column water annulus, and the column flue of heater 30 is used to collect in column annular quirk
Flue gas, and discharge flue gas in the presence of negative pressure generating device 40.Wherein, negative pressure generating device 40 can be with frequency conversion function
Air inducing machine equipment.
In the present embodiment, the burner 20 that feeds includes feeding chamber 21, is arranged on the fire grate 22 of the bottom of feeding chamber 21
And it is arranged on the deslagging device 23 of the lower section of fire grate 22；The side wall of feeding chamber 21 offers high-temperature flue gas inlet port 210, and high-temperature flue gas enters
Entrance 210 is located at the top of fire grate 22 and close to fire grate 22；High-temperature flue gas inlet port 210 is connected with heater 30.Further,
The burner 20 that feeds also includes spiral drawing slag machine 24, spiral to draw slag machine 24 to be arranged on the lower section of slag-moving device 23.Feeding chamber 21
For large stereo feeding chamber, it can so ensure to add a defective material continuous burning 10~12 hours, add from the upper shed of feeding chamber 21
Expect, the fuel combustion on the fire grate 22 of feeding chamber 21, fuel sinks in burning, overcomes the disadvantage that conventional boiler frequently feeds
End, while also create the condition that can not be substituted for full combustion of fuel.In addition, the top of fire grate 22 sets combustion chamber, this combustion
Burning mode had not only been adapted to biomass fuel but also had been adapted to coal combustion.
In the present embodiment, Fig. 3 to Fig. 5 is refer to, heater 30 includes interwined dragon shape heated body 31 and is fixed on disk
Closure 32, the closure 33 at the imperial both ends of shape heated body 31, interwined dragon shape heated body 31 include tail gas aggregation pipe 310, poly- fire tube 311
And at least one logical fire tube 312, tail gas aggregation pipe 310, poly- fire tube 311 and at least one logical fire tube 312 are coaxially set from inside to outside
Put, and tail gas assembles corresponding to the both ends of pipe 310, poly- fire tube 311 and at least one logical fire tube 312 and closure 32, closure
33 are sealedly and fixedly connected, and tail gas aggregation pipe 310 be the column flue, gap between poly- fire tube 311 and logical fire tube 312, is led to
Gap between fire tube 312 and logical fire tube 312 is the column annular quirk, is set between tail gas aggregation pipe 310 and poly- fire tube 311
It is equipped with a barrier 313, the upper and lower parts of barrier 313 and tail gas aggregation pipe 310, poly- fire tube 311 is connected and barrier 313
Both ends are sealedly and fixedly connected with closure 32, closure 33, tail gas aggregation pipe 310, poly- fire tube 311 and at least one logical fire tube
Offer guiding port 3101, guiding port 3111, guiding port 3121 in 312 side wall, tail gas aggregation pipe 310, poly- fire tube 311 and extremely
Guiding port 3101, guiding port 3111 on a few logical fire tube 312, the both ends of guiding port 3121 extend to closure 32, closure
33, logical one is provided between fire tube 312 and poly- fire tube 311 to ignite wall 314, wall 314 of igniting connects with logical fire tube 312, poly- fire tube 311
Connect and the both ends of wall 314 of igniting are sealedly and fixedly connected with seal cap sealing lid 32, closure 33, wall 314 of igniting is by logical fire tube 312
Guiding port 3121 is divided into guiding entrance 3122, guiding outlet 3123.The guiding entrance 3122 of logical fire tube 312 and charging burning dress
The high-temperature flue gas inlet port 210 for putting 20 feeding chamber 21 connects, the guiding of the guiding port 3111 of poly- fire tube 311 and logical fire tube 312
The connection of outlet 3123, guiding port 3101, the guiding port 3111 of poly- fire tube 311 of tail gas aggregation pipe 310 are located at the two of barrier 313
Side, the guiding outlet 3123 of the guiding port 3111 of poly- fire tube 311 and logical fire tube 312 gather positioned at the same side for wall 314 of igniting, tail gas
It is provided with heat exchanger chamber 3102, heat exchanger chamber 3112 corresponding in the tube wall of collector 310, poly- fire tube 311 and logical fire tube 312, changes
Hot cavity 3124, tail gas aggregation pipe 310, poly- fire tube 311 and heat exchanger chamber 3102 on logical fire tube 312, heat exchanger chamber 3112, change
Hot cavity 3124 is also coaxially disposed, tail gas aggregation pipe 310, poly- fire tube 311 and heat exchanger chamber 3102 on logical fire tube 312, heat exchange
Cavity 3112, heat exchanger chamber 3124 are the column water annulus, and heat carrier collecting is provided with closure 32, closure 33
Cavity 320, heat carrier house cavity 330, and tail gas assembles the heat exchanger chamber on pipe 310, poly- fire tube 311 and logical fire tube 312
3102nd, heat exchanger chamber 3112, heat exchanger chamber 3124 both ends corresponding to closure 32, the heat carrier host cavity of closure 33
Body 320, heat carrier house cavity 330 and connected, wherein, exhaust outlet 321, the exhaust outlet of closure 32 are offered on closure 32
321 connect with tail gas aggregation pipe 310, and negative pressure generating device 40 connects with the exhaust outlet 321 of closure 32, is opened up on closure 33
There is the first oxygenating air mating hole 332, the position of the first oxygenating air mating hole is corresponding with the guiding entrance of logical fire tube, and the
One oxygenating air mating hole 332 connects with the guiding entrance 3122 of logical fire tube 312.
Further, to adapt to the demand of the boiler of large-tonnage, heat exchanger chamber is provided with wall 314 of igniting, wall 314 of igniting
In heat exchanger chamber connected with heat exchanger chamber, the heat exchanger chamber of poly- fire tube 311 of outermost logical fire tube 312, in wall 314 of igniting
Heat exchanger chamber in be additionally provided with air and be in charge of, one end that air is in charge of is after the heat exchanger chamber in wall 314 of igniting passes
It is connected with the first oxygenating air mating hole 332, air is provided with the side wall that air is in charge of with portalling, the sky that air is in charge of
Gas connects with portalling with the guiding entrance 3122 of logical fire tube, so can both ensure that outside air uniformly entered the pot of large-tonnage
The guiding entrance 3122 of the logical fire tube of stove, and can prevent air is in charge of from being burnt by high-temperature flue gas.Wherein, the first oxygenating air
How much are the pore size and hole count of distribution 332, are that the air matching amount according to needed for boiler tonnage accurately calculates setting, air matching
Amount is big, can influence flame normal combustion, air matching amount is small, smog can be caused to disappear undesirable with desulfurized effect endless, not reached
Environmental requirement.Column water annulus in tail gas aggregation pipe 310, poly- fire tube 311 and logical fire tube 312 obtains in the following way：
The steel pipe of two different-diameters is coaxially disposed, makes two by way of flange fixation at the both ends of the steel pipe of two different-diameters
The steel pipe of individual different-diameter is relatively fixed and sealed, and then using the gap between the steel pipe of two different-diameters as column annular water
Road.
Further, it is provided with the closure 33 of the first oxygenating air mating hole 332 and is further opened with counting with logical fire tube 312
Corresponding hole 333 of scratching in the ashes, the second combustion air mating hole 335 are measured, hole 333 of scratching in the ashes is provided with to the closest of ground
Cover plate 334 corresponding with the quantity of hole 333 of scratching in the ashes is also set up on the closure 33 of one oxygenating air mating hole 332, cover plate 334 is with setting
Being equipped with the closure 33 of the first oxygenating air mating hole 332 can relatively rotate, and cover plate 334 hole 333 and can cover close to scratching in the ashes
Cover hole 333 of scratching in the ashes.Connected corresponding to each second oxygenating air mating hole 335 with a column annular quirk, the second oxygenating
Air mating hole 335 is set close to the guiding entrance 3122 of logical fire tube 312, and the second oxygenating air mating hole 335 further makes cigarette
Flue gas in road fully burns, and has eliminated smog.Heat carrier is provided with closure 33, closure 32 by hole, using logical
Heat carrier is delivered to the extraneous heat carrier provided of extraneous or reception by via.
Further, safety vent 3125, safety vent 3125 and logical fire tube are provided with the side wall of outermost logical fire tube 312
312 heat exchanger chamber 3124 connects, and safety vent 3125 is used to be connected with the explosion-proof valve in the external world, and outermost logical fire tube 312 draws
Leading mouth 3121 can be all as guiding entrance 3122, to facilitate the sealing of heater 30 to assemble.
Further, biomass and coal boiler for dual purpose 10 also include desulphurization plant 50, and desulphurization plant 50 produces dress with negative pressure
40 connections are put, tail gas is assembled the flue gas in pipe and pumped in desulphurization plant 50 by negative pressure generating device 40, and desulphurization plant 50 is to cigarette
Gas carries out purified treatment.
In above-mentioned biomass and coal boiler for dual purpose 10, charging burner 20 is connected with heater 30, and negative pressure produces dress
Put 40 to be connected with heater 30, negative pressure generating device 40 makes to produce negative pressure in charging burner 20, heater 30, charging
The burning coal of burner 20 or biomass, and caused high-temperature flue gas is delivered in heater 30, in heater 30
High-temperature flue gas in column annular quirk is under the powerful draft of negative pressure generating device 40, rapidly and uniformly in each column annular
Spread in quirk, combustion-supporting by the combustion air hole 211 in heater 30, the first oxygenating air mating hole 322, second is combustion-supporting
The echelon air of air mating hole 325 matches continuous oxygenating, high-temperature flue gas is fully burnt, and condition is created for smoke-eliminating desulfurizing,
Up to 800~1200 DEG C of fiery temperature, due to the column annular flame path structure of heater, add quirk length and quirk with
The contact area of water channel, high-temperature flue gas carry heat and high-temperature flue gas fully burn caused by heat transfer give column annular water
Heat carrier in road, and then improve boiler firing rate and the efficiency of heating surface.
Claims (9)
1. a kind of biomass and coal boiler for dual purpose, including charging burner, heater, it is characterised in that：Biomass and coal
Boiler for dual purpose also includes negative pressure generating device, and charging burner is connected with heater, negative pressure generating device and heater
Connection, negative pressure generating device are used to make to produce negative pressure in charging burner, heater, and charging burner is used for the coal that burns
Or biomass, and caused high-temperature flue gas is delivered in heater, heater has column flue, the post being coaxially disposed
Shape water annulus, column annular quirk, column flue connect with column annular quirk, and negative pressure generating device connects with column flue
Connect, high-temperature flue gas inlet port of the column annular quirk also with the burner that feeds is connected, and the column annular quirk of heater is used
In making high-temperature flue gas fully burn, and the heat and high-temperature flue gas that high-temperature flue gas is carried fully burn caused by heat transfer to
Heat carrier in column water annulus, the column flue of heater are used to collecting the flue gas in column annular quirk, and
Flue gas is discharged in the presence of negative pressure generating device；Wherein, heater include interwined dragon shape heated body and be fixed on interwined dragon shape by
The closure at hot body both ends, interwined dragon shape heated body include tail gas aggregation pipe, poly- fire tube and at least one logical fire tube, tail gas aggregation
Pipe, poly- fire tube and at least one logical fire tube are coaxially disposed from inside to outside, and tail gas aggregation pipe, poly- fire tube and at least one logical fire tube
Both ends corresponding to be fixedly connected with seal cap sealing, tail gas aggregation manage be the flue, between poly- fire tube and logical fire tube between
Gap, logical gap between fire tube and logical fire tube are quirk, and a barrier, barrier are provided between tail gas aggregation Guan Yuju fire tubes
With tail gas aggregation pipe, poly- fire tube be connected and barrier both ends are fixedly connected with seal cap sealing, tail gas assemble manage, poly- fire tube and extremely
Guiding port is offered in the side wall of a few logical fire tube, tail gas aggregation is managed, the guiding port on poly- fire tube and at least one logical fire tube
Both ends extend to closure, logical one is provided between fire tube and poly- fire tube to ignite wall, wall of igniting be connected with logical fire tube, poly- fire tube and
Wall both ends of igniting are fixedly connected with seal cap sealing, and the guiding port of logical fire tube is divided into guiding entrance, guiding to export by wall of igniting,
The guiding entrance of logical fire tube connects with the high-temperature flue gas inlet port of feeding chamber, and the guiding of the guiding port of poly- fire tube and logical fire tube exports
Connection, guiding port, the guiding port of poly- fire tube of tail gas aggregation pipe are located at the both sides of barrier, the guiding port of poly- fire tube and logical fire tube
Guiding outlet is provided with heat exchanger chamber in the same side of wall of igniting, the tube wall of tail gas aggregation pipe, poly- fire tube and logical fire tube,
The heat exchanger chamber of tail gas aggregation pipe, poly- fire tube and logical fire tube is also coaxially disposed, the heat exchange of tail gas aggregation pipe, poly- fire tube and logical fire tube
Cavity is water channel, and heat carrier is provided with closure and houses cavity, the heat exchanger chamber of tail gas aggregation pipe, poly- fire tube and logical fire tube
The corresponding heat carrier collecting cavity with two closures is connected, and exhaust outlet, closure are offered on one of closure
Exhaust outlet and the poly- header in communication of tail gas, negative pressure generating device connects with the exhaust outlet of closure, opened up on another closure
There is the first oxygenating air mating hole, the position of the first oxygenating air mating hole is corresponding with the guiding entrance of logical fire tube, and first
Oxygenating air mating hole connects with the guiding entrance of logical fire tube.
2. biomass as claimed in claim 1 and coal boiler for dual purpose, it is characterised in that：Feed burner include feeding chamber,
It is arranged on the fire grate of feeding chamber bottom and the deslagging device being arranged on below fire grate；The side wall of feeding chamber offers high-temperature flue gas entrance
Mouthful, high-temperature flue gas inlet port is located above fire grate and close to fire grate；High-temperature flue gas inlet port is connected with heater.
3. biomass as claimed in claim 1 and coal boiler for dual purpose, it is characterised in that：The burner that feeds also includes spiral
Slag machine is drawn, it is spiral to draw slag machine to be arranged on below slag-moving device.
4. biomass as claimed in claim 1 and coal boiler for dual purpose, it is characterised in that：Be further opened with another closure with
The second corresponding oxygenating air mating hole of logical fire tube quantity, corresponding to each second oxygenating air mating hole with a column
Annular quirk connection, the second oxygenating air mating hole are set close to the guiding entrance of logical fire tube.
5. biomass as claimed in claim 1 and coal boiler for dual purpose, it is characterised in that：Be further opened with another closure with
The corresponding hole of scratching in the ashes of logical fire tube quantity, hole of scratching in the ashes is to the closest of ground, and also set up and scratch in the ashes on closure hole number pair
The cover plate answered, cover plate can relatively rotate with closure, and cover plate hole and can cover hole of scratching in the ashes close to scratching in the ashes.
6. biomass as claimed in claim 1 and coal boiler for dual purpose, it is characterised in that：Set in the side wall of outermost logical fire tube
Safety vent is equipped with, safety vent connects with the heat exchanger chamber of logical fire tube, and safety vent is used to be connected with the explosion-proof valve in the external world.
7. biomass as claimed in claim 1 and coal boiler for dual purpose, it is characterised in that：Biomass and coal boiler for dual purpose also include
Desulphurization plant, desulphurization plant are connected with negative pressure generating device, and negative pressure generating device pumps to the flue gas that tail gas is assembled in pipe de-
In sulphur equipment, desulphurization plant carries out purified treatment to flue gas.
8. biomass as claimed in claim 1 and coal boiler for dual purpose, it is characterised in that：Negative pressure generating device is with frequency conversion work(
The air inducing machine equipment of energy.
9. biomass as claimed in claim 1 and coal boiler for dual purpose, it is characterised in that：Ignite and be provided with heat exchanger chamber in wall,
The heat exchanger chamber ignited in wall connects with the heat exchanger chamber of outermost logical fire tube, the heat exchanger chamber of poly- fire tube, in wall of igniting
It is additionally provided with air in heat exchanger chamber to be in charge of, one end that air is in charge of passes rear and first from the heat exchanger chamber in wall of igniting
Oxygenating air mating hole connects, and air is provided with the side wall that air is in charge of with portalling, the air that air is in charge of, which is matched somebody with somebody, to portal
Connected with the guiding entrance of logical fire tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510272848.4A CN104949106B (en) | 2015-05-26 | 2015-05-26 | Biomass and coal boiler for dual purpose |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510272848.4A CN104949106B (en) | 2015-05-26 | 2015-05-26 | Biomass and coal boiler for dual purpose |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104949106A CN104949106A (en) | 2015-09-30 |
| CN104949106B true CN104949106B (en) | 2018-01-05 |
Family
ID=54163987
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510272848.4A Expired - Fee Related CN104949106B (en) | 2015-05-26 | 2015-05-26 | Biomass and coal boiler for dual purpose |
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| Country | Link |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2080632U (en) * | 1990-11-23 | 1991-07-10 | 谢新佑 | Heating and cooking dualpurpose stove with internal combustion fire tube |
| CN1197186A (en) * | 1998-03-10 | 1998-10-28 | 吴植仁 | Directly-firing liquid heating furnace (appts.) with spiral fire duct |
| CN101016984A (en) * | 2007-02-14 | 2007-08-15 | 石家庄市石换换热环保有限公司 | Vertical steam boiler |
| CN103776173A (en) * | 2014-02-10 | 2014-05-07 | 夏品荷 | Integrated dividing wall heat exchanger |
| CN204648209U (en) * | 2015-05-26 | 2015-09-16 | 宁夏炬龙节能环保锅炉有限公司 | Living beings and coal boiler for dual purpose |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10267415A (en) * | 1997-03-25 | 1998-10-09 | Brother Ind Ltd | Fluid heating apparatus |
-
2015
- 2015-05-26 CN CN201510272848.4A patent/CN104949106B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2080632U (en) * | 1990-11-23 | 1991-07-10 | 谢新佑 | Heating and cooking dualpurpose stove with internal combustion fire tube |
| CN1197186A (en) * | 1998-03-10 | 1998-10-28 | 吴植仁 | Directly-firing liquid heating furnace (appts.) with spiral fire duct |
| CN101016984A (en) * | 2007-02-14 | 2007-08-15 | 石家庄市石换换热环保有限公司 | Vertical steam boiler |
| CN103776173A (en) * | 2014-02-10 | 2014-05-07 | 夏品荷 | Integrated dividing wall heat exchanger |
| CN204648209U (en) * | 2015-05-26 | 2015-09-16 | 宁夏炬龙节能环保锅炉有限公司 | Living beings and coal boiler for dual purpose |
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| Publication number | Publication date |
|---|---|
| CN104949106A (en) | 2015-09-30 |
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