CN105783250B - Negative pressure reverse combustion energy saving furnace - Google Patents
Negative pressure reverse combustion energy saving furnace Download PDFInfo
- Publication number
- CN105783250B CN105783250B CN201610214803.6A CN201610214803A CN105783250B CN 105783250 B CN105783250 B CN 105783250B CN 201610214803 A CN201610214803 A CN 201610214803A CN 105783250 B CN105783250 B CN 105783250B
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- Prior art keywords
- burner hearth
- pipe
- air
- inflection
- introduced machine
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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
-
- 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
- F24H9/0005—Details for water heaters
- F24H9/001—Guiding means
- F24H9/0026—Guiding means in combustion gas channels
- F24H9/0031—Guiding means in combustion gas channels with means for changing or adapting the path of the flue gas
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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)
- Solid-Fuel Combustion (AREA)
Abstract
The present invention relates to a kind of energy-saving stoves, i.e. a kind of negative pressure reverse combustion energy saving furnace suitable for room heat supply, including shell (2), water jacket (5), burner hearth (3), fire grate (7), fume pipe (9), the hot-water line (12) and return pipe (6) of water jacket (5) are connected with the circulation pipe at warmer (19) both ends, its main feature is that: the burner hearth is equipped with the fire door of salable closing, fume pipe in the confined space communicated with water jacket coil repeatedly by inflection, and the end of fume pipe connects with the entrance of air-introduced machine.The beneficial effect is that: it can be under the drive of air-introduced machine simultaneously to warmer and heated kang heat supply, long-time banking fire and it can start at any time open fire, without manpower frequent operation, the thermal efficiency is significantly improved, and discharges clean pettiness, environmental-protecting performance is superior, and have structure simple, low in cost, the operation is stable, the advantages that safe and reliable, it is expected to as family and the necessary tool of small unit.
Description
Technical field
The present invention relates to a kind of energy-saving stove, i.e., a kind of negative pressure reverse combustion energy saving furnace suitable for room heat supply.
Background technique
China's most area winter temperature is lower, and many rooms need heat supply.The city that concentration is compared in inhabitation is real
Show heating station or large area central heating, and more dispersed rural residence houses of living, or disperse to warm oneself by single household.
Wherein, many rooms can only lean on stove direct combustion to warm oneself or burn a heatable brick bed heating using the flue gas of pot and stove.Studies have shown that the temperature of stove heating
Degree fluctuation is very big, sometimes hot and sometimes cold and unhygienic, also dangerous.The thermal efficiency by burning a heatable brick bed heating is extremely low, and only 30% hereinafter, wave
Take fuel, pollute air, reduces quality of residents'life, and ineffective, a heatable brick bed face is awfully hot and room temperature is not high.In order to solve this
Problem, many residents are mounted with that simple room heater, the shell of stove are equipped with water jacket, are supplied by circulating water pipe to indoor radiator is occupied
Heat, heating effect are preferable.But this stove will frequently fill fuel, deashing, banking fire, need someone frequently to operate, account for
Use manpower.In addition, vigorous in order to burn, there are many ventilation point of stove, and banking fire is relatively difficult.It needs not continue to increase in room temperature,
Or people is when leave room, even if using banking fire measure, the speed of fuel combustion still quickly, both inconvenient adjustment rooms
Temperature, and heat supply cannot be continued, it is difficult to form stable room temperature.As it can be seen that not to be able to satisfy people still growing for existing simple room heater
Demand, require further improvement raising.
Summary of the invention
The object of the present invention is to provide one kind, and stable heat can be provided to room, and does not need frequently to operate, heat
High-efficient, discharge amount is small, the significant negative pressure reverse combustion energy saving furnace of effects of energy conservation and environmental protection.
Above-mentioned purpose is realized by the following technical solutions: develop a kind of negative pressure reverse combustion energy saving furnace, including shell, water jacket,
Burner hearth, fire grate, fume pipe, the hot-water line and return pipe of water jacket are connected with the circulation pipe at warmer both ends, its main feature is that: the furnace
Thorax is equipped with the fire door of salable closing, and fume pipe in the confined space communicated with water jacket coil repeatedly by inflection, the end of fume pipe
End connects with the entrance of air-introduced machine.
The import of the fume pipe front end is located at the back lower place of burner hearth, then along the vertical direction or horizontal direction extend inflection.
The fume pipe has three, and the import of fume pipe front end and the back lower place of burner hearth are opposite, then upwardly extend, still further below
Inflection, then upwardly extend, inflection still further below, back outlet connects with the entrance of air-introduced machine.
The import of the fume pipe front end is opposite with the top of burner hearth or middle part, then along the vertical direction or horizontal direction extend
Inflection.
The fume pipe has three, have in the middle one import lead to burner hearth internal upper part, the import of another two fume pipes with
The back lower place of burner hearth is opposite, and upwardly extends again respectively, inflection still further below, then upwardly extends, inflection still further below, back outlet with
The entrance of air-introduced machine connects.
The outlet of the air-introduced machine is connected with the heated kang in room by smoke exhaust pipe and/or accesses burner hearth by loopback pipe.
The air-introduced machine is driven by a motor, and motor is equipped with the control device of automatic start-stop.
The burner hearth is connected by gas collecting tube with plenum chamber.
The shell or fire door are equipped with blast pipe.
The blast pipe is constant pressure valve, has outer tube outside constant pressure valve, has inner sleeve inside outer tube, set above inner sleeve
There is switch mouth, is the unidirectional air duct of closed, the interior end opening in an outer end between internal and external casing, there is air inlet in inner sleeve outer end, interior
There is negative pressure mouth at end, passes through tension spring one slide valve of connection inside inner sleeve.
The beneficial effects of the present invention are: can be pressed for a long time under the drive of air-introduced machine simultaneously to warmer and heated kang heat supply
Open fire can be started at any time by fighting, and not have to manpower frequent operation, and the thermal efficiency significantly improves, and discharge clean pettiness, and environmental-protecting performance is superior,
And have structure it is simple, low in cost, the operation is stable, it is safe and reliable the advantages that, it is expected to as family and the indispensability of small unit
Apparatus.
Detailed description of the invention
Fig. 1 is the main view of the first embodiment；
Fig. 2 is the top view of the first embodiment；
Fig. 3 is the use state diagram of the first embodiment；
Fig. 4 is the control device structural block diagram of the first embodiment；
Fig. 5 is the top view of second of embodiment；
Fig. 6 is the top view of the third embodiment；
Fig. 7 is the main view of the 4th kind of embodiment；
Fig. 8 is the main view of the 5th kind of embodiment；
Fig. 9 is the main view of the 6th kind of embodiment；
Figure 10 is the main view of the 7th kind of embodiment；
Figure 11 is the main view of the component filter of the 7th kind of embodiment；
Figure 12 is the main view of the 8th kind of embodiment；
Figure 13 is a kind of working state figure of the component constant pressure switch of the 8th kind of embodiment；
Figure 14 is another working state figure of the component constant pressure switch of the 8th kind of embodiment.
It is visible in figure: negative pressure reverse combustion energy saving furnace 1, shell 2, burner hearth 3, fire door 4, water jacket 5, return pipe 6, fire grate 7, ash door 8,
Fume pipe 9, import 10, outlet 11, hot-water line 12, partition 13, air-introduced machine 14, smoke exhaust pipe 15, wall 16, water tank 17, heated kang 18,
Warmer 19, filter 20, loopback pipe 21, gas collecting tube 22, plenum chamber 23, hearth 24 adjust air hose 25, constant pressure switch 26, outer tube
27, inner sleeve 28, opening 29, unidirectional air duct 30, air inlet 31, tension spring 32, slide valve 33, negative pressure mouth 34.
Specific embodiment
The total design of the utility model is to provide a kind of small-sized household stove, using closed burner hearth and the cigarette of inflection repeatedly
It is combustion-supporting to form negative pressure smoke evacuation using air-introduced machine for road.Seven kinds of embodiments are introduced around this design combination attached drawing below:
The first embodiment: as shown in Figure 1 and Figure 2, this negative pressure reverse combustion energy saving furnace 1 be by shell 2, burner hearth 3, fire door 4,
The components such as water jacket 5, return pipe 6, fire grate 7, ash door 8, fume pipe 9 composition, the hot-water line 12 and return pipe 6 and warmer two of water jacket 5
The circulation pipe at end is connected, and feature mainly has two o'clock: first is that burner hearth is equipped with the fire door 4 of salable closing, the structure of fire door 4 is not
It is limited to the form of this figure, but its main function is all that fuel and removing slag are loaded to burner hearth, when closing should have stronger close
Sealing property, makes burner hearth form closed space as far as possible, and this point is that similar stove institute is unwanted.Second is that fume pipe 9 with water
Inflection is coiled repeatedly in the confined space that set 5 communicates, and the end of fume pipe 9 connects with the entrance of air-introduced machine 14.
Certainly, the import of 9 front end of fume pipe will be communicated with burner hearth, position can there are many, the preferred fume pipe import of this example
Position be located at the back lower place of burner hearth, that is, the rear corner with ashpit.Then extend inflection repeatedly along the vertical direction again.
Certainly, the quantity of fume pipe is also possible to one, is also possible to more.As it can be seen that the preferred fume pipe of this example has in figure
Three, the inflection form of fume pipe and number repeatedly can also there are many, this example preferably from the import of front end start to
Upper extension, inflection still further below, then upwardly extend, inflection still further below, the air-introduced machine by three bendings, outside last outlet and furnace
Entrance connects.
Obviously, a fume pipe can be bent to form repeatedly by a steel pipe, and for the ease of production, this example recommendation is removal
The bending of fume pipe, and two fume pipes are communicated with end opening using partition 13, He Yizhi steel pipe bending is equivalent knot
Structure mode.
Fig. 3 illustrates an application method of this stove, and the outlet of air-introduced machine 14 passes through wall by one section of smoke exhaust pipe 15
Wall enters the heated kang 18 in room, meanwhile, the hot-water line 12 and return pipe 6 of water jacket 5 connect with the circulation pipe at the warmer both ends in room,
Form circulation loop.In addition, also connecting water tank 17 by water pipe above stove.Water tank 17 can both recycle for warmer deposit
Water and certain pressure and volume are provided, and bath water can be provided for user.
Fuel is loaded to burner hearth 3 in use, first opening fire door 4, fire door 4 is closed after lighting.Air-introduced machine 14 is started, in furnace
Flame especially flue gas can be passed down through fire grate 7, enter fume pipe 9, then inflection repeatedly up and down, finally from flue gas from import 10
The outlet 11 of pipe is discharged, then enters heated kang 18 by air-introduced machine 14.Meanwhile water jacket provides hot water to warmer 19 and water tank 17.
As it can be seen that fire grate 7 is the more water pipes communicated with water jacket 5 in figure, the heating surface area of water jacket 5 can be increased.And flue gas
Pipe, which is lain also in the confined space that water jacket 5 communicates, to be passed through, and the heat of most of flue gas is exchanged in water.In this way, can both make
Most of heat distributes in the space in room, and the heat supply of appropriateness can be carried out to heated kang.It avoids and was radiated in the past by heated kang,
Thermal loss is big, and a heatable brick bed overheats room and cold phenomenon.
If heat supply needs to suspend a period of time, as long as stopping air inducing, banking fire state is immediately entered in burner hearth 3, is not needed
Using modes such as firming or fine coal, residual fuel can maintain neither to burn for a long time, the state that also do not put out a fire.Period can also
It releases a small amount of heat and maintains water temperature, keep the stabilization of room temperature.Until being again turned on air-introduced machine, stove fire burns immediately.
The loss of heat can be not only greatly reduced in above structure performance, reduce heat cost, and to realize automatic control
System provides good condition.The device of automatic control can there are many, simplest mode can by water temperature signal control draw
The start-stop of blower, it is very few used in cost.Fig. 4 also recommended a kind of than more preferably device, be passed by pressure sensor and temperature
Sensor is associated with controller, and controller is associated with components such as the motor of air-introduced machine and safety valves again, so that it may realize compared with
High automatic control process.
Second of embodiment: it as shown in figure 5, on the basis of the first embodiment, the outlet of air-introduced machine 14 or is connecing
Filter 20 is added on smoke exhaust pipe out, can the ingredients such as tar, sulfur dioxide in this flue gas separate, periodically take
Out, the cleannes that discharge can be improved in this way, prevent air pollution.Meanwhile taking-up tar can also utilize, and can especially obtain
Selenium element in coal, utility value are higher.
The third embodiment: as shown in fig. 6, on the basis of the first or second of embodiment, in the outlet of air-introduced machine
Loopback pipe 21 is terminated out, flue gas is transmitted back to burner hearth, carries out second-time burning.It can be further reduced in this way flammable in flue gas
Object improves the utilization rate of fuel.Certainly, loopback pipe preferably connects after filter, preferably connects and is attempted by filter in smoke exhaust pipe
Later, by valve, the valve especially automatically controlled determines the whereabouts of flue gas.In general, at the beginning of air-introduced machine starting, furnace
The interior intensity of a fire is lower, and the fuel gas accumulation that coal cracks under anoxic conditions before this in addition is more, and the value that loopback is fired again is higher,
Loopback can be first carried out, then, the intensity of a fire is surging in furnace, and gas fuel burning is abundant, so that it may loopback pipe is closed, and only to heated kang
Convey flue gas.
4th kind of embodiment: as shown in fig. 7, the knot of negative pressure reverse combustion energy saving furnace described here 1 and the first embodiment
Structure principle is identical, and the structure of second and the third embodiment is also applied for this example.Except that: fume pipe 9 is not
Vertically extend inflection, but horizontally extending inflection.Space in figure: the import of fume pipe front end is also to be located at furnace
The back lower place of thorax, then rolls over again horizontally extending back up, can directly stretch out shell 2 from top after inflection repeatedly,
And connect with the import of air-introduced machine 14.But the position of air-introduced machine 14 in this way will be higher.If it is desired to the position of air-introduced machine 14
It is lower, it can be to connect with the import of air-introduced machine 14 in position as shown, the fume pipe 9 of eminence is bent still further below.
5th kind of embodiment: as shown in figure 8, changing 9 leading inlet 10 of fume pipe on the basis of the first embodiment
Position, import 10 is opposite with the top of burner hearth or middle part, then extends inflection repeatedly along the vertical direction, and the position of outlet is also following
Portion is advisable.This mode makes the flame of fuel burn upwards, it is clear that more meet the rule of burning, but flue gas or conveying downwards,
In the preferable situation of confined condition, the anti-performance burnt can still be maintained.Certainly, the structure of second and the third embodiment
It is also applied for this example.
6th kind of embodiment: as shown in figure 9, on the basis of the first embodiment and the 5th kind of embodiment, to fume pipe
Structure carried out further improvement.The upper of burner hearth 3 is mentioned in the import 10 of a small number of fume pipes 9 in more fume pipes
Portion, and the import of other fume pipes 9 is still extended to the back lower place of burner hearth.If fume pipe 9 preferably three, can there is one
The top that branch, preferably one intermediate import 10 enter burner hearth 3, after other two imports 10 still reach burner hearth down
Lower section.The advantages of the first embodiment and the 5th kind of embodiment can be had both in this way, combustion efficiency is more preferably.Certainly, second and
The structure of the third embodiment is also applied for this example.In addition, this structure is also applied for the horizontally extending feelings of fume pipe
Condition is repeated no more because reason is simple.
7th kind of embodiment: as shown in Figure 10, the knot of negative pressure reverse combustion energy saving furnace 1 and the first embodiment described here
Structure principle is identical, and the structure of foregoing individual embodiments is also applied for this example.Except that: the burner hearth 3 passes through gas collection
Pipe 22 is connected with plenum chamber 23.Filter 20 and miniature unidirectional air pump are preferably provided on gas collecting tube 22.The benefit of this structure
It is, can be in burner hearth 3, the fuel gas in even entire fume pipe is drawn into plenum chamber 23.Led to again by plenum chamber 23
Piping is sent to the place for needing combustion gas, and what is indicated in figure is gas kitchen range 24, can be used to heat up water, cooking, cook.General feelings
Under condition, this unidirectional air pump is only opened during the banking fire after air-introduced machine stops working, may production in burner hearth to collect
Raw combustion gas.In this way, not only can be to avoid the loss of combustion gas, but also the security performance of stove can be improved.This process can be by people
Hand-guided can also carry out automatically controlling even intelligent control by control device.Such as pass through the pressure in detection burner hearth
Power or the concentration information of combustion gas issue instruction, control the start-stop of air pump by data processing.
Figure 11 recommends a kind of filter 20, there is a water tank, and the outer end of the gas collecting tube attracted from burner hearth 3 enters in water, water
Or more gas collecting tube lead to plenum chamber 23.If air pump is preferably mounted on the gas collecting tube for connecing burner hearth using air pump.Pass through this
Kind filter 20, can be filtered the combustion gas in burner hearth, obtain clean combustion gas, at the same time it can also extinguish in flue gas
Open fire improves security performance.
8th kind of embodiment: the negative pressure reverse combustion energy saving furnace 1 that the first embodiment and foregoing individual embodiments are introduced closes
Behind the door, burner hearth 3 is the very high confined space of airtightness to closed furnace, and when air-introduced machine stalling, flue gas cannot just be flow backwards.Meanwhile
Oxygen in burner hearth also after-flame, fuel also can stop burning quickly, keep the state that do not go out, and reach the mesh that fuel is saved in banking fire
's.It needs to enter comburant oxygen but after air-introduced machine starts, in burner hearth, it is not all right that burner hearth, which is completely closed,.Certainly, it solves
Certainly there are many mode of this problem, such as can open fire door or ash door, can also reduce the closed essence of some fire doors or ash door
Degree is entered the wind under negative pressure from crack between a door and its frame.Hair dryer conveying combustion air, etc. can also be installed additional.Aforesaid way is all this technology side
Case should have content.But above scheme is all difficult to the working condition being optimal, also it is not easy to realize automatic control.For this purpose, this
Embodiment recommends a kind of more preferably mode:
It as shown in figure 12,, can also be in fire door 4 preferably on the top of burner hearth 3 on the shell 2 of negative pressure reverse combustion energy saving furnace 1
Middle and upper part, be inserted into a tune air hose 25.Adjust the mode of air hose 25 very much, simplest tune air hose can be a thin footpath steel
Pipe, inner segment can be bent downward.Front opening can open wide, and can also assemble switch.In the case where no negative pressure, air hose air inlet is adjusted
Resistance is larger, and heat is higher in burner hearth in addition, adjusts air hose that can hardly enter the wind.After air-introduced machine starts, adjust air hose can be into
Wind, as long as Rational Parameters, this tune air hose 25 can satisfy the oxygen consuming amount in burner hearth.
On this basis, Figure 13 recommends a kind of more optimal tune air hose 25.This tune air hose 25 is that a kind of level pressure is opened
26 are closed, there is an outer tube 27 in outside, there is an inner sleeve 28 inside outer tube 27, and inner sleeve 28 is equipped with switch mouth 29 above,
It is that an outer end is closed between internal and external casing, there are air inlet 31, inner end in the unidirectional air duct 30 of interior end opening, 28 outer end of inner sleeve
There is negative pressure mouth 34, the inside connects a slide valve 33 by tension spring 32.When air-introduced machine stops, slide valve 33 is pulled to outer by tension spring 32
End, plugs the opening 29 above inner sleeve 28, the air outside furnace not can enter in furnace.After air-introduced machine is opened, in burner hearth
When negative pressure reaches certain index, slide valve 33 is attracted, opening 29 opening inner sleeve 28 on mobile toward one end of negative pressure mouth 34, furnace
Outer air pours combustion-supporting in furnace.When air-introduced machine stops, negative pressure disappears in furnace, and slide valve 33 is pull towards outer end by tension spring 32 at once.Envelope
Opening 29 is blocked up, the wind outside furnace not can enter in furnace, and burning stops in furnace, in banking fire state.
Claims (1)
1. a kind of negative pressure reverse combustion energy saving furnace, including shell (2), water jacket (5), burner hearth (3), fire grate (7), fume pipe (9), water jacket
(5) hot-water line (12) and return pipe (21) is connected with the circulation pipe at warmer (19) both ends, it is characterised in that: the burner hearth
(3) it is equipped with the fire door (4) of salable closing, fume pipe (9) in the confined space communicated with water jacket (5) coil repeatedly by inflection,
The end of fume pipe (9) connects with the entrance of air-introduced machine (14)；
The import (10) of fume pipe (9) front end is located at the back lower place of burner hearth (3), then along the vertical direction or horizontal direction extend
Inflection；Or
The fume pipe (9) has three, and the import (10) of fume pipe (9) front end is opposite with the back lower place of burner hearth (3), then prolongs upwards
It stretches, still further below inflection, then upwardly extends, still further below inflection, back outlet connects with the entrance of air-introduced machine (14)；Or
The import (10) of fume pipe (9) front end is opposite with the top of burner hearth (3) or middle part, then along the vertical direction or level side
To extension inflection；Or
The fume pipe (9) has three, there is the internal upper part of one import (10) logical burner hearth (3), another two fume pipes (9) in the middle
Import (10) it is opposite with the back lower place of burner hearth (3), and upwardly extend again respectively, inflection still further below, then upwardly extend, still further below
Inflection, back outlet connect with the entrance of air-introduced machine (14)；
The outlet (11) of the air-introduced machine (14) is connected with the heated kang (18) in room by smoke exhaust pipe (15) and/or by loopback pipe
(21) burner hearth (3) are accessed；
The air-introduced machine (14) is driven by a motor, and motor is equipped with the control device of automatic start-stop；
The burner hearth (3) is connected by gas collecting tube with plenum chamber (22)；
The shell (2) or fire door (4) are equipped with blast pipe (24)；
The blast pipe (24) is constant pressure valve (26), is had outer tube (27) outside constant pressure valve (26), is had inside outer tube (27) interior
Casing (28), inner sleeve (28) are equipped with switch mouth (29) above, are the list of closed, the interior end opening in an outer end between internal and external casing
To air duct (30), inner sleeve (28) outer end has air inlet (31), and inner end has negative pressure mouth (34), passes through tension spring inside inner sleeve (28)
(32) slide valve (33) is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610214803.6A CN105783250B (en) | 2016-04-07 | 2016-04-07 | Negative pressure reverse combustion energy saving furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610214803.6A CN105783250B (en) | 2016-04-07 | 2016-04-07 | Negative pressure reverse combustion energy saving furnace |
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| Publication Number | Publication Date |
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| CN105783250A CN105783250A (en) | 2016-07-20 |
| CN105783250B true CN105783250B (en) | 2019-04-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610214803.6A Expired - Fee Related CN105783250B (en) | 2016-04-07 | 2016-04-07 | Negative pressure reverse combustion energy saving furnace |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87216072U (en) * | 1987-12-08 | 1988-08-10 | 王宝生 | Combined household dual-purpose stove |
| CN2362048Y (en) * | 1998-10-20 | 2000-02-02 | 刘学俭 | Back-firing atmospheric furnace |
| KR100652893B1 (en) * | 2004-12-31 | 2006-12-01 | 업산건철(주) | Hot water boiler |
| CN201396788Y (en) * | 2009-02-18 | 2010-02-03 | 李存知 | Multifunctional plant gasification furnace |
| CN102252346A (en) * | 2010-05-19 | 2011-11-23 | 王海静 | Efficient household heating furnace for hot brick beds |
| CN204629586U (en) * | 2015-04-29 | 2015-09-09 | 陈金洪 | Heating stove |
| CN105020755A (en) * | 2014-04-26 | 2015-11-04 | 彭章晓 | Drawing-type pipeline connecting system |
| CN205448271U (en) * | 2016-04-07 | 2016-08-10 | 王海龙 | Negative pressure is counter burns energy -conserving stove |
-
2016
- 2016-04-07 CN CN201610214803.6A patent/CN105783250B/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87216072U (en) * | 1987-12-08 | 1988-08-10 | 王宝生 | Combined household dual-purpose stove |
| CN2362048Y (en) * | 1998-10-20 | 2000-02-02 | 刘学俭 | Back-firing atmospheric furnace |
| KR100652893B1 (en) * | 2004-12-31 | 2006-12-01 | 업산건철(주) | Hot water boiler |
| CN201396788Y (en) * | 2009-02-18 | 2010-02-03 | 李存知 | Multifunctional plant gasification furnace |
| CN102252346A (en) * | 2010-05-19 | 2011-11-23 | 王海静 | Efficient household heating furnace for hot brick beds |
| CN105020755A (en) * | 2014-04-26 | 2015-11-04 | 彭章晓 | Drawing-type pipeline connecting system |
| CN204629586U (en) * | 2015-04-29 | 2015-09-09 | 陈金洪 | Heating stove |
| CN205448271U (en) * | 2016-04-07 | 2016-08-10 | 王海龙 | Negative pressure is counter burns energy -conserving stove |
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| Publication number | Publication date |
|---|---|
| CN105783250A (en) | 2016-07-20 |
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