CN206420147U - Provided with the six faces heat exchange hot-blast stove that cigarette groove is walked under the opposite sex - Google Patents
Provided with the six faces heat exchange hot-blast stove that cigarette groove is walked under the opposite sex Download PDFInfo
- Publication number
- CN206420147U CN206420147U CN201620779590.7U CN201620779590U CN206420147U CN 206420147 U CN206420147 U CN 206420147U CN 201620779590 U CN201620779590 U CN 201620779590U CN 206420147 U CN206420147 U CN 206420147U
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- China
- Prior art keywords
- cigarette groove
- opposite sex
- heat exchange
- under
- burner hearth
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Abstract
The utility model discloses a kind of provided with the six faces heat exchange hot-blast stove that cigarette groove is walked under the opposite sex, including burner hearth and air channel shell, air channel shell is wrapped in the outside of burner hearth with so that being formed with cavity between burner hearth and air channel shell；Flue is provided with cavity with burner hearth to be connected, flue include the opposite sex under walk cigarette groove, smoke exhaust pipe and on walk cigarette groove, the bottom that cigarette groove is arranged at cavity is walked under the opposite sex, on walk cigarette groove and be arranged at the middle part of cavity and walk between cigarette groove walks cigarette groove with and be connected by smoke exhaust pipe under the top of burner hearth, the opposite sex；Multiple Inlet Networks are provided with the side wall of air channel shell；One end that fire door of the cigarette groove close to the burner hearth is walked under the opposite sex is to be provided with deep bead in different in nature section, the different in nature section, and the deep bead is arranged at the end of the different in nature section away from the fire door to be divided into the end two layers.The characteristics of six face heat exchange hot-blast stove has high heat exchange efficiency, high heat-exchange temperature and small volume.
Description
Technical field
The utility model is related to hot-blast stove, in particular it relates to a kind of provided with the six faces heat exchange hot-blast stove that cigarette groove is walked under the opposite sex.
Background technology
Hot-blast stove starts extensive use in late 1970s as the hot-blast stove of thermal power machinery in China, in many
Industry turns into the regeneration product of electric heat source and conventional vapor power heat source.The most basic operation principle of hot-blast stove is to lead to cold wind
Enter in the interlayer of stove and take the heat of interlayer to form hot blast out of, then object is heated by hot blast.
At present, hot-blast stove can be divided into two kinds of heat accumulating type and heat exchange type according to principle is made.The advantage of heat accumulating type is：Heat-exchange temperature
Height, heat utilization efficiency is high；Shortcoming is：Volume is big, and floor space is big, and hot blast temperature is unstable, and switching mechanism is more, easily goes wrong,
Heat storage short life, maintenance cost is high, and acquisition cost is high.
Heat exchange type, master is to use high temperature resistant heat exchanger to be core component, and this part can not use metal material to exchange heat
Device, can only use refractory ceramics heat exchanger, and combustion gas gas fully burns in combustion chamber, the hot-air after burning, by heat exchange
Device, gives heat fresh cold air.Its advantage is：Heat-exchange temperature is high, and heat utilization efficiency is high, small volume, and hot blast temperature is stable,
Many without switching mechanism, long lifespan, maintenance cost is high, and acquisition cost is low；Shortcoming is that heat-exchange temperature is high without heat accumulating type, occur compared with
In evening, it is not commonly used.
Utility model content
The purpose of this utility model is to provide a kind of six faces heat exchange hot-blast stove for being provided with and cigarette groove being walked under the opposite sex, should be provided with different in nature
Under walk the characteristics of six faces heat exchange hot-blast stove of cigarette groove has heat exchange efficiency high, high heat-exchange temperature and small volume.
To achieve these goals, the utility model provides a kind of provided with the six faces heat exchange hot blast that cigarette groove is walked under the opposite sex
Stove, including burner hearth and air channel shell, air channel shell are wrapped in the outside of burner hearth with so that being formed between burner hearth and air channel shell
Cavity；Flue is provided with cavity to be connected with burner hearth, flue include the opposite sex under walk cigarette groove, smoke exhaust pipe and on walk cigarette groove, it is different
Property under walk the bottom that cigarette groove is arranged at cavity, above walk cigarette groove be arranged at cavity middle part and positioned at burner hearth top, the opposite sex under walk
Cigarette groove is connected between cigarette groove is walked with by smoke exhaust pipe；Multiple Inlet Networks are provided with the side wall of air channel shell；The opposite sex
Under to walk cigarette groove close to one end of the fire door of the burner hearth be to be provided with deep bead, the deep bead in different in nature section, the different in nature section
The end of the different in nature section away from the fire door is arranged to be divided into the end two layers.
Preferably, the end face of the front end of the deep bead is inclined-plane.
Preferably, the rear of the side wall on the left and right both sides of air channel shell is provided with air outlet, the both sides of the air outlet
It is provided with below a pair of otic placodes, the air outlet and is provided with baffle plate, fixing hole, the otic placode and gear is provided with the otic placode
Deashing lid can be set between plate can fix described clear to close through there is gim peg on the air outlet, the fixing hole
Tepetate.
Preferably, above walk and dismountable top deashing cover plate is provided with the top of cigarette groove；The top of cigarette groove is walked on described
Top is provided with deashing notch, and one end of the top deashing cover plate is articulated with an edge of the deashing notch, and the other end leads to
Cross the other edge that fastener is arranged in the deashing notch.
Preferably, Inlet Network at least includes consisting of part：Lower Inlet Network, middle Inlet Network and upper air inlet net；Lower air intake
Net is arranged at the surrounding of the bottom of air channel shell and the lower section of cigarette groove is walked under the opposite sex, and middle Inlet Network is arranged at air channel shell
Middle part and the surrounding for being surrounded on fire door, upper air inlet net are located at the surrounding on the top of air channel shell and positioned at the top for above walking cigarette groove.
Preferably, the sidewall paneling of burner hearth is rough sheet material.
Preferably, the top plate for above walking cigarette groove is rough sheet material.
Preferably, heat exchange fence is additionally provided with cavity, heat exchange fence is arranged at the bottom of burner hearth.
Preferably, the end for cigarette groove being walked under the opposite sex is additionally provided with cleaning door, and cleaning door is arranged at the rear wall of air channel shell
On.
Preferably, the rear of the side wall on the left and right both sides of air channel shell is provided with air outlet.
Preferably, extractor fan is provided with the top of air channel shell, and extractor fan is connected with above walking cigarette groove.
Preferably, grey car is additionally provided with cavity, grey parking stall is in the lower section of heat exchange fence.
According to above-mentioned technical proposal, what the utility model was provided is provided with the six faces heat exchange hot-blast stove that cigarette groove is walked under the opposite sex, first
First in burner hearth combust fuel；Then the hot-air in burner hearth, which will be passed sequentially through, walks cigarette groove, smoke exhaust pipe (smoke exhaust pipe master under the opposite sex
It is arranged on the left and right of burner hearth and these three rear directions) and above walk cigarette groove and extractor fan is taken away, meanwhile, cold wind also understand oneself
Be evacuated to by extractor fan from Inlet Network in cavity, such cold wind will with walked under the opposite sex cigarette groove, smoke exhaust pipe and on walk cigarette groove and enter
Row heat exchange (heat exchange can be carried out in the antetheca of burner hearth, left side, right side, rear wall, top and bottom)；Finally, realize that heat is handed over
Hot blast after changing is passed through in heater by air channel shell to be heated to article to be heated；In addition, top deashing cover plate
The flue dust in flue can be convenient to clean to improve the flow velocity of cigarette to accelerate heat exchange；Meanwhile, the opposite sex of cigarette groove is walked under the opposite sex
Setting deep bead effectively to prevent the cigarette in burner hearth straight in section, (this is due to extractor fan toward flowing in smoke exhaust pipe rearward
The rear end of air channel shell is generally located on, so mobilization force close to the position of power is bigger, it is easier to ban on opium-smoking and the opium trade) so that
Smoke of entering in each smoke exhaust pipe is consistent, and then improves the efficiency of heat exchange to overcome the drawbacks of Local Heat Transfer is poor.This sets
There are the small volume for the six faces heat exchange hot-blast stove that cigarette groove is walked under the opposite sex, the heat while six faces that cigarette groove is walked in the case where this is provided with the opposite sex exchange heat
In wind furnace, cold wind with the opposite sex under walk cigarette groove, smoke exhaust pipe and on walk cigarette groove heat exchange it is very sufficient, and then cause should provided with the opposite sex
Under walk the six faces heat exchange hot-blast stove of cigarette groove there is the characteristics of excellent heat exchange efficiency is high, heat-exchange temperature is high.
Other feature and advantage of the present utility model will be described in detail in subsequent embodiment part.
Brief description of the drawings
Accompanying drawing is to be further understood for providing to of the present utility model, and constitutes a part for specification, and following
Embodiment be used to explain the utility model together, but do not constitute to limitation of the present utility model.In the accompanying drawings：
Fig. 1 is the preferred embodiment for the hot-blast stove that exchanged heat provided with six faces that cigarette groove is walked under the opposite sex that the utility model is provided
Structural representation；
Fig. 2 is the sectional view of Fig. 1 left view；
Fig. 3 is the local signal amplification figure of Fig. 1 rearview；
Fig. 4 is the top view of part A in Fig. 3.
Description of reference numerals
1st, burner hearth 2, air channel shell
3rd, cigarette groove 4, smoke exhaust pipe are walked under the opposite sex
5th, cigarette groove 6, middle Inlet Network are walked on
7th, upper air inlet net 8, air outlet
9th, heat exchange fence 10, sidewall paneling
11st, top plate 12, grey car
13rd, fire door 14, lower Inlet Network
15th, cleaning door 16, extractor fan
17th, top deashing cover plate 18, deep bead
Embodiment
Embodiment of the present utility model is described in detail below in conjunction with accompanying drawing.It should be appreciated that herein
Described embodiment is merely to illustrate and explained the utility model, is not limited to the utility model.
In the utility model, in the case where not making opposite explanation, " upper and lower, forward and backward, top, bottom " etc. is included in term
In the noun of locality only represent orientation of the term under normal service condition, or be skilled artisan understands that be commonly called as, and
It is not construed as the limitation to the term.
The utility model provides a kind of six faces heat exchange hot-blast stove for being provided with and cigarette groove being walked under the opposite sex, as Figure 1-4, including
Burner hearth 1 and air channel shell 2, air channel shell 2 are wrapped in the outside of burner hearth 1 to form free between burner hearth 1 and air channel shell 2
Chamber；Flue is provided with cavity to be connected with burner hearth 1, flue include the opposite sex under walk cigarette groove 3, smoke exhaust pipe 4 and on walk cigarette groove 5,
The bottom that cigarette groove 3 is arranged at cavity is walked under the opposite sex, cigarette groove 5 is above walked and is arranged at the middle part of cavity and positioned at the top of burner hearth 1, the opposite sex
Under walk between cigarette groove 3 walks cigarette groove 5 with and be connected by smoke exhaust pipe 4；Multiple Inlet Networks are provided with the side wall of air channel shell 2；
One end that fire door 13 of the cigarette groove 3 close to the burner hearth 1 is walked under the opposite sex is to be provided with deep bead in different in nature section, the different in nature section
18, the deep bead 18 is arranged at end of the different in nature section away from the fire door 13 to be divided into the end two layers.
Above-mentioned is provided with the six faces heat exchange hot-blast stove that cigarette groove is walked under the opposite sex, first in the combust fuel of burner hearth 1；Then burner hearth
Hot-air in 1 will pass sequentially through walked under the opposite sex cigarette groove 3, smoke exhaust pipe 4 and on walk cigarette groove 5 and extractor fan is taken away, meanwhile, it is cold
Wind also can from being evacuated to by extractor fan from Inlet Network in cavity, such cold wind will with walked under the opposite sex cigarette groove 3, smoke exhaust pipe 4 and
On walk cigarette groove 5 carry out heat exchange；Finally, realize that the hot blast after heat exchange is passed through in heater to be heated by air channel shell 2
Article heated；Meanwhile, walked under the opposite sex in the different in nature section of cigarette groove 3 and set deep bead 18 effectively to prevent burner hearth 1
In cigarette straight toward flowing in smoke exhaust pipe 4 rearward, (this is due to the rear end that extractor fan is generally located on air channel shell 2, so
Mobilization force close to the position of power is bigger, it is easier to ban on opium-smoking and the opium trade) so that the smoke of entering in each smoke exhaust pipe 4 is consistent,
And then improve the efficiency of heat exchange to overcome the drawbacks of Local Heat Transfer is poor.This is provided with the six faces heat exchange hot-blast stove that cigarette groove is walked under the opposite sex
Small volume, while this provided with the opposite sex under walk cigarette groove six faces heat exchange hot-blast stove in, cold wind with the opposite sex under walk cigarette groove 3, row
Smoke pipe 4 and above walk cigarette groove 5 heat exchange it is very sufficient, and then cause this provided with the opposite sex under walk cigarette groove six faces heat exchange hot blast stove
There is the characteristics of excellent heat exchange efficiency is high, heat-exchange temperature is high.
In the utility model, in order that cigarette in different in nature section in end being capable of end motion forward, it is preferable that the gear
The end face of the front end of aerofoil 18 is inclined-plane.
In addition, in order to make cold wind from forward one end air intake, and from a side air-out rearward, can be from utmost
The upper time of contact for improving cold wind and flue and burner hearth 1, so as to improve heat exchanger effectiveness；Meanwhile, the convenience of cover plate is improved,
Preferably, the rear of the side wall on the left and right both sides of air channel shell 2 is provided with air outlet 8, and the both sides of the air outlet 8 are set
There are a pair of otic placodes, the lower section of the air outlet 8, which is provided with baffle plate, the otic placode, is provided with fixing hole, the otic placode and baffle plate
Between deashing lid can be set so that close on the air outlet 8, the fixing hole can be through having gim peg with fixed described clear
Tepetate；
In addition, for the ease of the flue dust in cleaning flues to improve the flow velocity of cigarette to accelerate heat exchange, it is preferable that above walk cigarette
The top of groove 5 is provided with dismountable top deashing cover plate 17, it is described on walk and be provided with deashing groove at the top of the top of cigarette groove 5
Mouthful, one end of the top deashing cover plate 17 is articulated with an edge of the deashing notch, and the other end is arranged in institute by fastener
State the other edge of deashing notch.
In the utility model, usual extractor fan is arranged on the rear of air channel shell 2, in order that obtaining the hot cigarette of burner hearth 1
Can be evenly into each smoke exhaust pipe 4, so as to realize that cold wind can be sufficiently carried out heat exchange with smoke exhaust pipe 4, it is preferable that different
The connected entrance walked under property between cigarette groove 3 and burner hearth 1 is disposed in proximity to one end of the fire door 13 of burner hearth 1.So, the heat in burner hearth 1
Then air certainly will enter back into other smoke exhaust pipes, and then realize that hot cigarette can be uniform into the smoke exhaust pipe 4 for entering close fire door 13
Ground enters in each smoke exhaust pipe 4.
In the utility model, the particular location of Inlet Network and distribution can be selected in wide scope, but in order to
Cold wind is entered provided with the various pieces in the six faces heat exchange hot-blast stove that cigarette groove is walked under the opposite sex, so that cold wind can
Heat exchange can be sufficiently carried out with hot cigarette, it is preferable that Inlet Network at least includes consisting of part：Lower Inlet Network 14, in enter
Wind net 6 and upper air inlet net 7；Lower Inlet Network 14 is arranged at the surrounding of the bottom of air channel shell 2 and walked under the opposite sex under cigarette groove 3
Side, middle Inlet Network 6 is arranged at the middle part of air channel shell 2 and is surrounded on the surrounding of fire door 13, and upper air inlet net 7 is located at air channel shell 2
Top surrounding and positioned above walking the top of cigarette groove 5.Thus the setting of Inlet Network, it is ensured that cold wind enters from multiple directions
Enter in cavity, and then realize heat exchange, with so as to fully be heated.
Meanwhile, in the utility model, in order to ensure that it is excellent that the sidewall paneling of burner hearth 1 can be realized with the cold air in cavity
Heat exchange, it is preferable that the sidewall paneling 10 of burner hearth 1 is rough sheet material, and such rough structure can increase
The contact area of cold air and burner hearth 1, and then the efficiency of heating surface of cold air can be improved.On the other hand, by the sidewall paneling of burner hearth 1
10 be that rough sheet material can also improve the mechanical strength of burner hearth 1, is sent out in high temperature environments so as to be effectively prevented from burner hearth 1
The generation of the situation for the shape that changes.
Similarly, excellent heat exchange is realized with the cold air in cavity in order to improve flue, the wallboard of flue can be set
It is set to rough sheet material, it is preferable that the top plate 11 for above walking cigarette groove 5 is rough sheet material.In addition, rough knot
Structure can also improve the mechanical strength of flue.
In addition, the heat exchanger effectiveness in order to further improve burner hearth 1 and the cold air in cavity, it is preferable that in cavity also
Heat exchange fence 9 is provided with, heat exchange fence 9 is arranged at the bottom of burner hearth 1.So, the cold sky entered by the front of air channel shell 2
Gas will be achieved in carrying out heat exchange with the heat of burner hearth 1 by the bottom of burner hearth 1, and then improve heat by the fence 9 that exchanges heat
Exchange efficiency.
In the utility model, it is contemplated that there is the sedimentation and accumulation of flue dust in cigarette groove 3, for the ease of in cleaning cigarette groove
Flue dust, it is preferable that the end that cigarette groove 3 is walked under the opposite sex is additionally provided with cleaning door 15, and cleaning door 15 is arranged at the rear side of air channel shell 2
On wall.So, there is the flue dust in cigarette groove 3 and will step by step be accumulated by the flowing of cigarette after settling and cigarette groove 3 is walked under the opposite sex
In, so, set cleaning door 15 just very can quickly clear up flue dust in the rear wall of air channel shell 2.
Similarly, in order to improve flue smoke evacuation path length to improve the time of contact of cold wind and flue, so as to improve
Heat exchanger effectiveness, it is preferable that the top of air channel shell 2 is provided with extractor fan 16, and extractor fan 16 is connected with above walking cigarette groove 5
It is logical.
Finally, it is contemplated that burner hearth 1 needs deashing, it is preferable that grey car 12 is additionally provided with cavity, grey car 12 is located at heat exchange grid
The lower section on column 9.
Preferred embodiment of the present utility model is described in detail above in association with accompanying drawing, still, the utility model is not limited
Detail in above-mentioned embodiment, can be to skill of the present utility model in range of the technology design of the present utility model
Art scheme carries out a variety of simple variants, and these simple variants belong to protection domain of the present utility model.
It is further to note that each particular technique feature described in above-mentioned embodiment, in not lance
In the case of shield, it can be combined by any suitable means, in order to avoid unnecessary repetition, the utility model is to each
Possible combination is planted no longer separately to illustrate.
In addition, can also be combined between a variety of embodiments of the present utility model, as long as it is not disobeyed
Thought of the present utility model is carried on the back, it should equally be considered as content disclosed in the utility model.
Claims (10)
1. it is a kind of provided with the six faces heat exchange hot-blast stove that cigarette groove is walked under the opposite sex, it is characterised in that including burner hearth (1) and air channel shell
(2), the air channel shell (2) is wrapped in the outside of the burner hearth (1) to cause between the burner hearth (1) and air channel shell (2)
It is formed with cavity；Flue is provided with the cavity to be connected with the burner hearth (1), the flue includes walking cigarette groove under the opposite sex
(3), smoke exhaust pipe (4) and above walk cigarette groove (5), walk the bottom that cigarette groove (3) is arranged at the cavity under the opposite sex, it is described on walk cigarette
Groove (5) is arranged at the middle part of the cavity and walks cigarette groove (3) under the top of the burner hearth (1), the opposite sex and above walk cigarette
It is connected between groove (5) by smoke exhaust pipe (4)；Multiple Inlet Networks are provided with the side wall of the air channel shell (2)；The opposite sex
Under to walk cigarette groove (3) close to one end of the fire door (13) of the burner hearth (1) be to be provided with deep bead in different in nature section, the different in nature section
(18), the deep bead (18) is arranged at end of the different in nature section away from the fire door (13) end is divided into two
Layer.
2. it is according to claim 1 provided with the six faces heat exchange hot-blast stove that cigarette groove is walked under the opposite sex, wherein, the deep bead (18)
Front end end face be inclined-plane.
3. it is according to claim 1 provided with the opposite sex under walk cigarette groove six faces heat exchange hot-blast stove, wherein, it is described on walk cigarette groove
(5) dismountable top deashing cover plate (17) is provided with the top of；Deashing is provided with the top of the top that cigarette groove (5) are walked on described
Notch, one end of the top deashing cover plate (17) is articulated with an edge of the deashing notch, and the other end is set by fastener card
In the other edge of the deashing notch.
4. it is according to claim 1 provided with the six faces heat exchange hot-blast stove that cigarette groove is walked under the opposite sex, wherein, the Inlet Network is at least
Including consisting of part：Lower Inlet Network (14), middle Inlet Network (6) and upper air inlet net (7)；The lower Inlet Network (14) is arranged at
The surrounding of the bottom of the air channel shell (2) and the lower section that cigarette groove (3) are walked under the opposite sex, the middle Inlet Network (6) set
It is placed in the middle part of the air channel shell (2) and is surrounded on the surrounding of the fire door (13), the upper air inlet net (7) is located at outside air channel
The surrounding on the top of shell (2) and positioned above walking the tops of cigarette groove (5).
5. being provided with according to any one in claim 1-4 walks the six faces heat exchange hot-blast stove of cigarette groove under the opposite sex, wherein, institute
The sidewall paneling (10) for stating burner hearth (1) is rough sheet material.
6. being provided with according to any one in claim 1-4 walks the six faces heat exchange hot-blast stove of cigarette groove under the opposite sex, wherein, and
And/or described in person on walk cigarette groove (5) top plate (11) be rough sheet material.
7. being provided with according to any one in claim 1-4 walks the six faces heat exchange hot-blast stove of cigarette groove under the opposite sex, wherein, institute
State and heat exchange fence (9) is additionally provided with cavity, the heat exchange fence (9) is arranged at the bottom of the burner hearth (1).
8. it is according to claim 7 provided with the six faces heat exchange hot-blast stove that cigarette groove is walked under the opposite sex, wherein, walk cigarette under the opposite sex
The end of groove (3) is additionally provided with cleaning door (15), and the cleaning door (15) is arranged on the rear wall of the air channel shell (2).
9. it is according to claim 8 provided with the six faces heat exchange hot-blast stove that cigarette groove is walked under the opposite sex, wherein, the air channel shell
(2) be provided with extractor fan (16) at the top of, and the extractor fan (16) with it is described on walk cigarette groove (5) and be connected.
10. according to claim 8 or claim 9 provided with the opposite sex under walk cigarette groove six faces heat exchange hot-blast stove, wherein, in the cavity
Grey car (12) is additionally provided with, the grey car (12) is located at the lower section of the heat exchange fence (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620779590.7U CN206420147U (en) | 2016-07-23 | 2016-07-23 | Provided with the six faces heat exchange hot-blast stove that cigarette groove is walked under the opposite sex |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620779590.7U CN206420147U (en) | 2016-07-23 | 2016-07-23 | Provided with the six faces heat exchange hot-blast stove that cigarette groove is walked under the opposite sex |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206420147U true CN206420147U (en) | 2017-08-18 |
Family
ID=59577599
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620779590.7U Expired - Fee Related CN206420147U (en) | 2016-07-23 | 2016-07-23 | Provided with the six faces heat exchange hot-blast stove that cigarette groove is walked under the opposite sex |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206420147U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106091372A (en) * | 2016-07-23 | 2016-11-09 | 芜湖长启炉业有限公司 | It is provided with under the opposite sex the hexahedro heat exchange air stove walking cigarette groove |
-
2016
- 2016-07-23 CN CN201620779590.7U patent/CN206420147U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106091372A (en) * | 2016-07-23 | 2016-11-09 | 芜湖长启炉业有限公司 | It is provided with under the opposite sex the hexahedro heat exchange air stove walking cigarette groove |
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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: 20170818 Termination date: 20190723 |