CN208704159U - Internal combustion burner and hot water supply system - Google Patents
Internal combustion burner and hot water supply system Download PDFInfo
- Publication number
- CN208704159U CN208704159U CN201821039204.6U CN201821039204U CN208704159U CN 208704159 U CN208704159 U CN 208704159U CN 201821039204 U CN201821039204 U CN 201821039204U CN 208704159 U CN208704159 U CN 208704159U
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- Prior art keywords
- combustion chamber
- furnace body
- internal combustion
- combustion burner
- fire door
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Abstract
The utility model provides a kind of internal combustion burner and hot water supply system, including furnace body and combustion chamber, the first opening and the second opening are provided on the furnace wall of furnace body, first opening is equipped with the first fire door, second opening is equipped with the second fire door, first fire door is flexibly connected with furnace body, second fire door is flexibly connected with furnace body, combustion chamber is mounted in furnace body, combustion chamber has combustion chamber, latticed grate is installed in combustion chamber, combustion chamber is separated to form the first combustion chamber and the second combustion chamber vertically arranged by grate, first combustion chamber has smoke outlet, second combustion chamber has air inlet, first the first combustion chamber of open communication, second the second combustion chamber of open communication.The internal combustion burner can be improved the utilization rate of fuel, obtain more heats, and after fuel combustion is abundant, particle suspensions are reduced from the smog being discharged from smoke outlet, reduce the pollution of environment.
Description
Technical field
The utility model relates to burner arts, in particular to a kind of internal combustion burner and hot water supply system
System.
Background technique
Now widely used external-burning domestic hot water exchanger (being commonly called as simple soil boiler), ununified fixation product
Mode and apply standard；It under normal conditions, is all to select special fuel (mainly under the conditions of gravity-flow ventilation or forced ventilation
Coal makees fuel) burning under, by heat exchange medium (usually water or mineral oil) realize heat exchange, to obtain hot water
Device.
Inventor has found that traditional burner at least has the following disadvantages: in use under study for action
One, fossil fuel can only be obtained in specific region, and transport and selection are all limited by various conditions；
Secondly, it is fossil-fuel-fired not exclusively give off the harmful substances such as untreated sulfide, pollute environment,
It is unworthy advocating；
Thirdly, the lime-ash of fossil-fuel-fired generation, can not focus on as environment-friendly building materials material, over time, produce
The pollution to environment has been given birth to, has been difficult to remove.
Utility model content
The purpose of this utility model is to provide a kind of internal combustion burners, to improve traditional civil boiler using not
Just, to the heavy-polluted problem of environment.
The purpose of this utility model is to provide a kind of hot water supply systems, to improve traditional civil boiler using not
Just, to the heavy-polluted problem of environment.
The embodiments of the present invention are achieved in that
Based on above-mentioned first purpose, the utility model provides a kind of internal combustion burner comprising has:
Furnace body, the first opening is provided on the furnace wall of the furnace body and the second opening, first opening are equipped with
First fire door, second opening are equipped with the second fire door, and first fire door is flexibly connected with the furnace body, and described second
Fire door is flexibly connected with the furnace body,
And combustion chamber, the combustion chamber are mounted in the furnace body, the combustion chamber has combustion chamber, the combustion
Burn it is intracavitary latticed grate is installed, the grate combustion chamber is separated to form the first combustion chamber for vertically arranging with
And second combustion chamber, first combustion chamber have a smoke outlet, and second combustion chamber has an air inlet, and described first
First combustion chamber described in open communication, the second combustion chamber described in second open communication.
In the utility model preferred embodiment, the air inlet is located at the lower section of second combustion chamber.
In the utility model preferred embodiment, the internal combustion burner further includes holding hawk, described to hold hawk peace
It is described to hold hawk and grate interval setting, the bottom for holding hawk Yu the furnace body in second combustion chamber
The setting of portion interval, the air inlet are located at described hold on hawk.
In the utility model preferred embodiment, admission line is installed at the air inlet, the admission line is remote
The furnace body is stretched out from the furnace wall of the furnace body in port from the air inlet.
In the utility model preferred embodiment, the internal combustion burner further includes gas transmission mechanism, the aerophore
Structure includes gas tank and gas pipeline, and the end of the gas tank is connected to the gas pipeline, the gas pipeline connection it is described into
Port is equipped with the control valve for controlling gas flow in the gas pipeline on the gas tank.
In the utility model preferred embodiment, first fire door is hinged on the furnace body, second fire door
It is hinged on the furnace body.
In the utility model preferred embodiment, is formed and used between the inner wall of the furnace body and the outer wall of the combustion chamber
In the reservoir chamber of water storage, the reservoir chamber has water inlet and water outlet.
In the utility model preferred embodiment, smoke evacuation pipe fitting, the smoke evacuation are provided on the furnace wall of the furnace body
Mouth is connected to the smoke evacuation pipe fitting.
In the utility model preferred embodiment, the internal combustion burner further includes ashes sedimentation collecting box, described
Ashes settle collecting box and the smoke exhaust pipe fittings, are provided with smoke evacuation outlet on the ashes sedimentation collecting box.
Based on above-mentioned second purpose, the utility model provides a kind of hot water supply system, including water circulation pipe and
The internal combustion burner, the medium in heat and the water circulation pipe that the internal combustion burner burning generates carry out
Heat exchange.
The beneficial effect of the utility model embodiment is:
In conclusion the utility model embodiment provides a kind of internal combustion burner, and it is simple and reasonable, convenient for system
Make processing, installation with it is easy to use, meanwhile, which can be improved the utilization rate of fuel, obtain more heats,
After fuel combustion is abundant, particle suspensions are reduced from the smog being discharged from smoke outlet, reduce the pollution of environment.It is specific as follows:
Fuel addition is entered in the first combustion chamber, lights fuel, closed by internal combustion burner provided in this embodiment
The first fire door is closed, fuel full combustion in the first combustion chamber, after fuel combustion, the volume of fuel becomes smaller, and fuel is from grate
On fall, drop into the second combustion chamber, gas tank connected at the air inlet of the second combustion chamber, store compression in gas tank
Air (compressed oxygen), after gas tank is opened, compressed air enters the second combustion chamber from air inlet, will be in the second combustion chamber
Fuel brush, fuel is suspended in the second combustion chamber, and the full combustion again under the action of excess air releases heat
Amount, reaches full combustion of fuel, has not only reduced suspended particulate substance and has decontaminated environment from flue, but also increases fuel combustion release
Heat, improve the utilization rate of fuel, save the energy.After fuel combustion in first combustion chamber, opens the first fire door and carry out
The addition of fuel.Meanwhile first burn in combustion chamber and the second fuel chamber after the ashes amount that generates of fuel reach
When discharge requires, the first fire door and the second fire door are opened, ashes are cleaned up from the first opening and the second opening respectively, no
Easily blocking.
Hot water supply system provided in this embodiment includes above-mentioned internal combustion burner, has above-mentioned internal combustion burner
All advantages, the heat and water that fuel combustion generates in internal combustion burner carry out heat exchange, the heating of water realized, convenient for making
Use hot water.
Detailed description of the invention
It, below will be to use required in embodiment in order to illustrate more clearly of the technical solution of the utility model embodiment
Attached drawing be briefly described, it should be understood that the following drawings illustrates only some embodiments of the utility model, therefore should not be by
Regard the restriction to range as, for those of ordinary skill in the art, without creative efforts, may be used also
To obtain other relevant attached drawings according to these attached drawings.
Fig. 1 is the schematic diagram of the internal combustion burner of the utility model embodiment；
Fig. 2 is the schematic diagram of the grate of the internal combustion burner of the utility model embodiment；
Fig. 3 is the schematic diagram of a distressed structure of the internal combustion burner of the utility model embodiment；
Fig. 4 is the schematic diagram of another distressed structure of the internal combustion burner of the utility model embodiment.
Icon: 100- furnace body；110- first is open；120- second is open；The first fire door of 130-；The second furnace of 140-
Door；150- outlet pipe；160- return pipe；170- smoke evacuation pipe fitting；171- smoke outlet；180- stone or metal plate for standing a stove on as a precaution against fire；The combustion chamber 200-；
The first combustion chamber of 210-；The second combustion chamber of 220-；230- grate；240- holds hawk；241- air inlet；250- into
Tracheae；300- reservoir chamber；400- gas transmission mechanism；500- ashes settle collecting box.
Specific embodiment
Now widely used external-burning domestic hot water exchanger, ununified fixation product pattern and apply standard；
Under normal conditions, all it is to be selected under special fuel burning under the conditions of gravity-flow ventilation or forced ventilation, passes through heat exchange medium reality
Existing heat exchange, to obtain the device of hot water.Fossil fuel can only be obtained in specific region, and transport and selection are all by various
Condition limitation.It is fossil-fuel-fired not exclusively to give off the harmful substances such as untreated sulfide, pollute environment.Mineral
The lime-ash that fuel combustion generates can not focus on as environment-friendly building materials material, over time, produce the pollution to environment,
It is difficult to remove.
In consideration of it, inventor devises a kind of internal combustion burner and hot water supply system, the internal combustion burner energy
Enough improve fuel utilization rate, obtain more heats, after fuel combustion is abundant, from from smoke outlet 171 be discharged smog in
Grain suspended matter is reduced, and reduces the pollution of environment.
It is practical new below in conjunction with this to keep the objectives, technical solutions, and advantages of the embodiments of the present invention clearer
Attached drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that is retouched
The embodiment stated is the utility model a part of the embodiment, instead of all the embodiments.Usually here in attached drawing description and
The component of the utility model embodiment shown can be arranged and be designed with a variety of different configurations.
Therefore, requirement is not intended to limit to the detailed description of the embodiments of the present invention provided in the accompanying drawings below
The scope of the utility model of protection, but it is merely representative of the selected embodiment of the utility model.Based in the utility model
Embodiment, every other embodiment obtained by those of ordinary skill in the art without making creative efforts, all
Belong to the range of the utility model protection.
It should also be noted that similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined in a attached drawing, does not then need that it is further defined and explained in subsequent attached drawing.
In the description of the present invention, it should be noted that the orientation or positional relationship of the instructions such as term "inner", "outside"
For be based on the orientation or positional relationship shown in the drawings or the utility model product using when the orientation or position usually put
Relationship is merely for convenience of describing the present invention and simplifying the description, rather than the device or element of indication or suggestion meaning must
There must be specific orientation, be constructed and operated in a specific orientation, therefore should not be understood as limiting the present invention.This
Outside, term " first ", " second " are only used for distinguishing description, are not understood to indicate or imply relative importance.
In the description of the present invention, it should also be noted that, unless otherwise clearly defined and limited, term " is set
Set ", " installation ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally
Connection；It can be mechanical connection, be also possible to be electrically connected；Can be directly connected, can also indirectly connected through an intermediary,
It can be the connection inside two elements.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition
The concrete meaning of language in the present invention.
It should be noted that in the absence of conflict, the feature in the embodiments of the present invention and embodiment can
To be combined with each other.
Embodiment
Referring to Fig. 1, present embodiments providing a kind of internal combustion burner comprising have:
Furnace body 100, is provided with the first opening 110 and the second opening 120 on the furnace wall of furnace body 100, at the first opening 110
First fire door 130 is installed, the second fire door 140 is installed at second opening 120, the first fire door 130 connects with 100 activity of furnace body
It connecing, the second fire door 140 is flexibly connected with furnace body 100,
And combustion chamber 200, combustion chamber 200 are mounted in furnace body 100, have combustion chamber, combustion chamber inside combustion chamber 200
Latticed grate 230 is inside installed, grate 230 combustion chamber is separated to form the first combustion chamber 210 vertically arranged and
Second combustion chamber 220, the first combustion chamber 210 have smoke outlet 171, and the second combustion chamber 220 has air inlet 241, the
One opening, 110 the first combustion chamber 210 of connection, 120 the second combustion chamber 220 of connection of the second opening.
Fuel addition is entered in the first combustion chamber 210, lights combustion by internal combustion burner provided in this embodiment
Material closes the first fire door 130, and fuel full combustion in the first combustion chamber 210, after fuel combustion, the volume of fuel becomes smaller,
Fuel is fallen from grate 230, is dropped into the second combustion chamber 220, is connected at the air inlet 241 of the second combustion chamber 220
Gas tank is connect, is stored in gas tank compressed air (compressed oxygen), after gas tank is opened, compressed air enters the from air inlet 241
Two combustion chambers 220 brush the fuel in the second combustion chamber 220, and fuel is suspended in the second combustion chamber 220, in mistake
Full combustion again under the action of air is measured, heat is released, reaches full combustion of fuel, both reduced suspended particulate substance from cigarette
Road decontaminates environment, and increases the heat of fuel combustion release, improves the utilization rate of fuel, saves the energy.First burning
After fuel combustion in chamber 210, the addition that the first fire door 130 carries out fuel is opened.Meanwhile first combustion chamber 210
When the ashes amount generated with the fuel after burning in the second fuel chamber reaches discharge and requires, the first fire door 130 and second is opened
Ashes are cleaned up from the first opening 110 and the second opening 120 respectively, are not easy to plug by fire door 140.
In the present embodiment, furnace body 100 is cylindrical body, is provided with cylindrical chamber, the Single port of furnace body 100 in furnace body 100
For the opening being connected to cylindrical chamber, stone or metal plate for standing a stove on as a precaution against fire 180 is covered in the open-mouth of furnace body 100.In the close opening one of furnace body 100
Third opening is provided on the furnace wall at end, third opening can be rectangular opening, and third opening is equipped with smoke evacuation pipe fitting 170,
Smoke evacuation pipe fitting 170 is connected to the smoke outlet 171 of the first combustion chamber 210, is used for vapour discharge.Pipe fitting 170 of discharging fume is separate
The end of furnace body 100 is provided with flange arrangement.Through-hole is provided on smoke evacuation pipe fitting 170.
Obviously, furnace body 100 can also be other shapes, such as cuboid etc., herein without enumerating.
Optionally, the first opening 110 can be rectangular opening, and the side of the first fire door 130 is hinged on furnace body 100, and first
The first opening 110 can be turned on or off in 130 rotation process of fire door.Second opening 120 can be rectangular opening, the second fire door
140 side is hinged on furnace body 100, and the second opening 120 can be turned on or off in 140 rotation process of the second fire door.It is logical
The first opening 110 of unlatching is crossed, fuel can be added into the first combustion chamber 210, or the ashes after burning are cleaned up, fired
The first fire door 130 is closed during burning, it is safer.It similarly, can be by the second combustion chamber by opening the second fire door 140
The ashes after burning in 220 clean out, and reduce blocking.When adding fuel, fuel is directed to the residue of farmland hill
Object, therefore can gather materials on the spot completely, not only facilitate operation to apply, but also its fuel cost can be ignored, has been that agricultural product are deep whenever and wherever possible
Processing provides easy, the economic hot water energy, in actual application, the hot water energy can satisfy the processing of crops constant temperature,
The application such as constant temperature breeding, constant temperature nursery, constant temperature drying.
It is optional in the present embodiment, partition, the length direction of partition and the axis of furnace body 100 are installed in furnace body 100
Line direction is parallel, and furnace body 100 is separated to form reservoir chamber 300 and combustion chamber 200 by partition, and reservoir chamber 300 is closed chamber, storage
Water chamber 300, which has, is equipped with outlet pipe 150, outlet pipe with the water outlet and water inlet that are connected to outside furnace body 100, water outlet
150 ports far from reservoir chamber 300 are stretched out from the through hole on smoke evacuation pipe fitting 170, for being connected to water circulation pipe；Water inlet
Mouth is located at furnace body 100 on the furnace wall of bottom, and water inlet is equipped with return pipe 160, and return pipe 160 stretches out furnace wall, return water
Pipe 160 with water circulation pipe for being connected to.
In other embodiments, combustion chamber 200 can be independent structure, and combustion chamber 200 is mounted in furnace body 100, combustion
It burns and forms reservoir chamber 300 between the outer wall of room 200 and the inner wall of furnace body 100.
Referring to Fig. 1, it is further, it is equipped in combustion chamber 200 and holds hawk 240, held hawk 240 and be located at the second combustion chamber
In room 220, the bottom interval for holding hawk 240 and furnace body 100 is arranged, and holds hawk 240 and the interval of grate 230 is arranged, will be with second
The air inlet 241 that combustion chamber 220 is connected to is arranged on holding hawk 240, i.e., air inlet 241 is located at the second combustion chamber 220
Bottom, from bottom inflow, gas is blown upward, and fuel, which is not easy to be deposited in, to be held on hawk 240, increases contact of the fuel with air
Area improves fuel economy, obtains more heats.Air inlet pipe 250 is installed at air inlet 241, air inlet pipe 250 is
Bend pipe, air inlet pipe 250 stretches out the furnace wall of furnace body 100 far from the port of air inlet 241, due to holding the bottom of hawk 240 Yu furnace body 100
The setting of portion interval has reserved sufficient space for the installation of air inlet pipe 250, and the port that air inlet pipe 250 stretches out furnace wall is used for and gas transmission
Mechanism 400 connects.
Referring to Fig. 2, grate 230 is disk, grate 230 has at least one strip through-hole, drops into for fuel
In two combustion chambers.Obviously, the structure of grate 230 can also be other structures, herein without enumerating.
Referring to Fig. 3, optional, gas transmission mechanism 400 includes gas tank and gas pipeline, and the end of gas tank is connected to gas transmission
Pipeline, gas pipeline are connected to air inlet 241, the control valve for controlling gas flow in gas pipeline are equipped on gas tank.
It is filled with compressed air in gas tank, opens control valve, compressed air enters in the second combustion chamber 220, is fuel combustion
Oxygen is provided, and brushes fuel, is suspended in fuel in the second combustion chamber 220, improves efficiency of combustion.
Referring to Fig. 4, it is optional in the present embodiment, ashes sedimentation collecting box 500 is installed at smoke evacuation pipe fitting 170,
Ashes sedimentation collecting box 500 is connect by flange arrangement with smoke evacuation pipe fitting 170, and mounting means is simple and reliable, is settled in ashes
Smoke evacuation outlet, the cigarette generated in 220 combustion process of the first combustion chamber 210 and the second combustion chamber are provided on collecting box 500
Mist enters smoke evacuation pipe fitting 170 from smoke outlet 171, settles collecting box 500 then into ashes, the particle in smog suspends
Object is fallen under gravity into ashes sedimentation collecting box 500, reduces the discharge of particle suspensions, more environmentally-friendly.
Embodiment
Present embodiments provide a kind of hot water supply system, including water circulation pipe and internal combustion type provided by the above embodiment
Burner, the heat that fuel combustion generates in the water and internal combustion burner in water circulation pipe carry out heat exchange, water-circulating pipe
Water in road is heated, and realizes the conversion of energy, when actual installation, water inlet port and reservoir chamber 300 in water circulation pipe
Water outlet is connected to, and the water outlet port in water circulation pipe is connected to the water inlet of reservoir chamber 300, is provided in water circulation pipe
Water tank adjusts water temperature for supplementing water in real time and being mixed with the hot water in pipeline.The hot water supply system can be used for
Domestic hot water, hot water can warm oneself in winter；It can wash vegetables, bathing, clothes etc. of doing washing in winter；It can be also used for realizing aquatic products
Thermostatic control is cultivated, can be widely applied for aquaculture or livestock-raising.
Optional in the present embodiment, hot water supply system includes electric control gear, using automatically controlled chip, is realized to air accumulator
The pressure control for exporting compressed air, reaches the continuous control to furnace temperature, and compressed air pressure is reasonable when promoting to add fuel, prevents
Only the flame in the second combustion chamber 220 is sprayed when adding fuel from the first fire door 130, and then realization addition fuel freedom,
Safety.Meanwhile electric control gear can also reach and carry out automatically controlling to chimney meatus transmitting smoke amount, be suitble to the flue-gas temperature of discharge, avoid
Temperature is excessively high to be generated security against fire hidden danger and meets the combustion space that fuel combustion obtains abundance.By the control to furnace temperature, reach
To the circular flow to exchange hot water, temperature, pressure, automatic water supplement, 100 temperature of furnace body is excessively high caused by preventing because of water shortage, generates
The potential faults such as scaling loss deformation.Under the control of electric control gear, realize that supplement fuel early warning, water temperature early warning, moisturizing early warning, water follow
Air compressor machine and automatic closing smoke evacuation system in due course are automatically closed when ring failure, prevents dry combustion method, sky are burnt, water temperature variation is exceeded from causing heat
It disables caused by water is insufficient using with thermostatic control.
Hot water supply system provided in this embodiment is with medium water by being changed into the heat obtained after fuel combustion
The heat conversion for transmitting object, has reached from simple burning, the physical transformation of controllable thermal energy has been converted into, to be served
The hot water of people production and life.
The above descriptions are merely preferred embodiments of the present invention, is not intended to limit the utility model, for this
For the technical staff in field, various modifications and changes may be made to the present invention.It is all in the spirit and principles of the utility model
Within, any modification, equivalent replacement, improvement and so on should be included within the scope of protection of this utility model.
Claims (10)
1. a kind of internal combustion burner, which is characterized in that it includes:
Furnace body, the first opening is provided on the furnace wall of the furnace body and the second opening, first opening are equipped with first
Fire door, second opening are equipped with the second fire door, and first fire door is flexibly connected with the furnace body, second fire door
It is flexibly connected with the furnace body,
And combustion chamber, the combustion chamber are mounted in the furnace body, the combustion chamber has combustion chamber, the combustion chamber
Latticed grate is inside installed, the combustion chamber is separated to form the first combustion chamber vertically arranged and by the grate
Two combustion chambers, first combustion chamber have smoke outlet, and second combustion chamber has air inlet, first opening
It is connected to first combustion chamber, the second combustion chamber described in second open communication.
2. internal combustion burner according to claim 1, which is characterized in that the air inlet is located at second combustion chamber
The lower section of room.
3. internal combustion burner according to claim 1, which is characterized in that the internal combustion burner further includes holding ash
Plate, the hawk that holds are mounted in second combustion chamber, and the hawk that holds is arranged with the grate interval, described to hold hawk
It is arranged with the bottom interval of the furnace body, the air inlet is located at described hold on hawk.
4. internal combustion burner according to claim 3, which is characterized in that admission line is installed at the air inlet,
The furnace body is stretched out from the furnace wall of the furnace body in port of the admission line far from the air inlet.
5. internal combustion burner described in any one of -4 according to claim 1, which is characterized in that the internal combustion burner
It further include gas transmission mechanism, the gas transmission mechanism includes gas tank and gas pipeline, and the end of the gas tank is connected to the appendix
Road, the gas pipeline are connected to the air inlet, are equipped on the gas tank for controlling gas flow in the gas pipeline
Control valve.
6. internal combustion burner according to claim 1, which is characterized in that first fire door is hinged on the furnace body
On, second fire door is hinged on the furnace body.
7. internal combustion burner described in any one of -4 according to claim 1, which is characterized in that the inner wall of the furnace body with
The reservoir chamber for being used for water storage is formed between the outer wall of the combustion chamber, the reservoir chamber has water inlet and water outlet.
8. internal combustion burner according to claim 1, which is characterized in that be provided with smoke exhaust pipe on the furnace wall of the furnace body
Connector, the smoke outlet are connected to the smoke evacuation pipe fitting.
9. internal combustion burner according to claim 8, which is characterized in that the internal combustion burner further includes that ashes are heavy
Collecting box, the ashes sedimentation collecting box and the smoke exhaust pipe fittings, the row of being provided on the ashes sedimentation collecting box drop
Cigarette outlet.
10. a kind of hot water supply system, which is characterized in that including water circulation pipe and according to claim 1 any one of -9
The internal combustion burner, the medium in heat and the water circulation pipe that the internal combustion burner burning generates carry out
Heat exchange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821039204.6U CN208704159U (en) | 2018-07-03 | 2018-07-03 | Internal combustion burner and hot water supply system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821039204.6U CN208704159U (en) | 2018-07-03 | 2018-07-03 | Internal combustion burner and hot water supply system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208704159U true CN208704159U (en) | 2019-04-05 |
Family
ID=65937224
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821039204.6U Expired - Fee Related CN208704159U (en) | 2018-07-03 | 2018-07-03 | Internal combustion burner and hot water supply system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208704159U (en) |
-
2018
- 2018-07-03 CN CN201821039204.6U patent/CN208704159U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190405 Termination date: 20190703 |