CN206280957U - A kind of New Regenerative radiant tube combustion device - Google Patents
A kind of New Regenerative radiant tube combustion device Download PDFInfo
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- CN206280957U CN206280957U CN201621383465.0U CN201621383465U CN206280957U CN 206280957 U CN206280957 U CN 206280957U CN 201621383465 U CN201621383465 U CN 201621383465U CN 206280957 U CN206280957 U CN 206280957U
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- burner
- combustion chamber
- radiant tube
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- air
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
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Abstract
The utility model is related to heat accumulating type high temperature air combustion technology field, more particularly to a kind of New Regenerative radiant tube combustion device.Including：At least two single preheated air heat-storage type burners, body of heater, at least three radiant tubes, igniter burner, igniter burner sleeve pipe, at least two combustion chambers, four-way valves；Single preheated air heat-storage type burner includes：Cover plate, body of air, heat-insulation layer, heat storage, burner block, gas spray gun, adpting flange.The device has heat accumulating type multitubular bundles radiant tube, with meet efficiently, energy-saving and environmental protection regenerative combustion technology advantage while there is more efficient integration, radiant power is high, and temperature is more uniform, and its structure is simpler, install, debugging and maintenance more facilitate.
Description
Technical field
The utility model is related to heat accumulating type high temperature air combustion technology field, more particularly to a kind of New Regenerative radiant tube
Burner.
Background technology
Gas fired radiant tubes, mainly with coal gas as fuel, in special sealing shroud combustion inner pipe, by the sleeve surface being heated
Heating object is transferred heat in the form of heat radiation, combustion product is not contacted with heating object；Regenerative gas spoke
Setting of the pipe by heat storage is penetrated using the sensible heat of flue gas after covering combustion inner pipe come warm-up combustion-supporting air or combustion gas, with the combustion heat
Efficiency high, the features such as stable, equipment dependability is high, it is widely used in various heat-treatment furnaces and continuous annealing furnace etc..Due to
Gas fired radiant tubes is in course of normal operation, it is necessary to configure corresponding reversing control system and device.With engineering project
Extensive use a, heat-treatment furnace need to be equipped with tens or even hundreds of radiant tube burners, by taking regenerative gas radiant tube as an example,
The quantity and igniter burner and corresponding Iganition control system that radiant tube burner need to be configured complement one another, and system is very huge,
Artificial cumbersome, high cost.Therefore how to design a kind of efficient, simple thermal-storage burning device utilizing radiant tube turns into this area
The technical problem of urgent need to resolve.
Utility model content
The utility model is in view of the shortcomings of the prior art, it is proposed that a kind of New Regenerative radiant tube combustion device, the dress
Put with heat accumulating type multitubular bundles radiant tube, with meet efficiently, energy-saving and environmental protection regenerative combustion technology advantage while have more
Efficient integration, radiant power is high, and temperature is more uniform, and its structure is simpler, installs, debugs and overhaul more convenient.
In order to solve the above technical problems, the utility model proposes a kind of New Regenerative radiant tube combustion device, according to
Embodiment of the present utility model, the device includes：At least two single preheated air heat-storage type burners, body of heater（8）, at least three
Radiant tube（9）, igniter burner（10）, igniter burner sleeve pipe（11）, at least two combustion chambers（12）, four-way valve（13）；The list
Preheated air heat-storage type burner includes：Cover plate（1）, body of air（2）, heat-insulation layer（3）, heat storage（4）, burner block（5）, coal
Gas spray gun（6）, adpting flange（7）, wherein：First burner A and the first combustion chamber A is located at the side of the body of heater, the second combustion
Burner B and the second combustion chamber B is located at the opposite side of the body of heater, the burner block point of the first burner A and the second burner B
The tapping of the first combustion chamber A and the second combustion chamber B is not extend into, and is extended in combustion chamber, outside the burner block
Metal flange plate is fastenedly connected with corresponding combustion chamber；Gas spray gun is provided with the burner block of each burner, for inciting somebody to action
Combustion gas is incorporated into combustion chamber, and the flame for going out burner combustion burns in a combustion chamber, so that without fire inside radiant tube
Flame face；The inner space of the first combustion chamber A and the second combustion chamber B is in " inverted round stage " type structure along flame propagation direction, is used
In flame propagation velocity is improved, the upper table surface of " inverted round stage " is provided with the flame export being connected with radiant tube；The radiant tube
Extend in the inner chamber of the body of heater, its one end is connected with the flame export of the first combustion chamber A by adpting flange, the other end and
The flame export of the second combustion chamber B is connected by adpting flange, and the radiant tube axis is passed with the flame in combustion chamber
Broadcast direction in the same direction.
Inventor has found that, according to thermal-storage burning device utilizing radiant tube described in the utility model, furnace atmosphere, temperature compare
Uniformly, in-furnace temperature fluctuation, without flame front inside radiant tube, will not produce localized hyperthermia at ± 5 DEG C, and the power of radiant tube can be with
Increase with the increase of burner rating, extend the service life of radiant tube；While required for reducing installation burner
Space, facilitate the arrangement of process pipeline, operation and maintenance is convenient, improves security, and further fume afterheat is returned
Receive, exhaust gas temperature can be controlled in less than 150 DEG C；In addition the combustion chamber structure of " inverted round stage " pattern of its uniqueness, can be by
Heat transfer between combustion chamber and radiant tube realizes that " seamless " is docked, and improves the heat utilization efficiency in combustion chamber, further carries
Radiant tube surface emissivity power high, and the quantity of radiant tube can set multiple radiant tubes according to technological parameter, reduce
Input cost reduces the area of installing and using of device simultaneously, and operation more facilitates, safety.
According to embodiment of the present utility model, the body of air（2）Adpting flange and burner block（5）Flange fix
Connection, the cover plate（1）With body of air（2）It is fastened by bolts, heat-insulation layer（3）It is arranged on body of air（2）Inside, shape
Into the cavity that heat storage is placed, the heat storage（4）It is placed in the inside cavity.
According to embodiment of the present utility model, the adpting flange of the first burner A and the second burner B（7）Respectively
With the four-way valve（13）Two connectors be attached by the metal flange on pipeline, four-way valve (13) two other
Connector is fastened with the metal flange of smoke evacuation house steward and air header respectively.
According to embodiment of the present utility model, burner block external metallization flanged plate is fastened with corresponding combustion chamber using bolt
Connection；The body of air（2）Adpting flange and burner block（5）Flange be fixedly connected with bolt；The first combustion chamber A
Flame export and the second combustion chamber B flame export at, be respectively equipped with radiant tube adpting flange（14）, itself and radiant tube（9）
It is connected by bolt；Two other connector of four-way valve (13) leads to the metal flange of smoke evacuation house steward and air header respectively
Cross bolt fastening.
According to embodiment of the present utility model, each combustion chamber top is designed with an igniter burner, the igniting
Burner is deep into the inner space in " inverted round stage " type, also, the igniter burner periphery is provided with igniter burner sleeve pipe.
According to embodiment of the present utility model, radiant tube（9）Horizontal mode is positioned over furnace interior, or point row row vertically
Furnace interior is distributed in, also or in " product " font is arranged.
According to embodiment of the present utility model, the adpting flange（7）Valve is provided between the four-way valve, for controlling
The break-make of air in burner.
According to embodiment of the present utility model, the gas spray gun（6）Including cutting valve soon.
According to embodiment of the present utility model, quantity and the radiation of the flame export of the upper table surface of " inverted round stage "
Pipe is identical, and along the distribution arrangement setting of the radiant tube.
According to embodiment of the present utility model, the flame export is uniformly distributed on the upper table surface.
The utility model at least includes following beneficial effect：Thermal-storage burning device utilizing radiant tube described in the utility model,
Than more uniform, in-furnace temperature fluctuates at ± 5 DEG C, without flame front inside radiant tube, will not produce local height for furnace atmosphere, temperature
Temperature, the power of radiant tube can increase with the increase of burner rating, extend the service life of radiant tube；Reduce simultaneously
Space required for installing burner, facilitates the arrangement of process pipeline, and operation and maintenance is convenient, improves security, enters one
Step is reclaimed to fume afterheat, and exhaust gas temperature can be controlled in less than 150 DEG C；In addition the burning of " inverted round stage " pattern of its uniqueness
Chamber interior structure, can realize that " seamless " is docked by the heat transfer between combustion chamber and radiant tube, improve in combustion chamber
Heat utilization efficiency, further increases radiant tube surface emissivity power, and the quantity of radiant tube can be set according to technological parameter
Multiple radiant tubes, reduce input cost while reducing the area of installing and using of device, and operation more facilitates, safety.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model thermal-storage burning device utilizing radiant tube.
Fig. 2 is the structural representation of the utility model burner.
Fig. 3 is the utility model combustion chamber space structure front view.
Fig. 4 is the utility model combustion chamber space structure right view.
Wherein, cover plate 1, body of air 2, heat-insulation layer 3, heat storage 4, burner block 5, gas spray gun 6, adpting flange 7, body of heater
8, radiant tube 9, igniter burner 10, igniter burner sleeve pipe 11, combustion chamber 12, the first combustion chamber A 1201, the second combustion chamber B
1202, four-way valve 13, radiant tube adpting flange 14, burner 15, the first burner A 1501, the second burner B1502.
Specific embodiment
In order that those skilled in the art more fully understand the technical solution of the utility model, with reference to specific embodiment
The utility model is described in further detail.The embodiments described below is exemplary, is only used for explaining that this practicality is new
Type, and it is not intended that to limitation of the present utility model.Unreceipted particular technique or condition in embodiment, according in the art
Document described by technology or condition or carried out according to product description.
The utility model proposes a kind of New Regenerative radiant tube combustion device, Fig. 1 is the utility model heat accumulating type spoke
The structural representation of pipe burner is penetrated, according to embodiment of the present utility model, shown in reference picture 1, dress described in the utility model
Put including：At least two single preheated air heat-storage type burners 15, body of heater 8, at least three radiant tubes 9, igniter burner 10, igniting
Burner sleeve pipe 11, at least two combustion chambers 12 and four-way valve 13；According to some embodiments of the present utility model, when single preheated air
When heat-storage type burner and combustion chamber are 2, including：First burner A 1501 and the first combustion chamber A 1201, second fire
The combustion chamber B 1202 of burner B 1502 and second；Wherein, the first burner A and the first combustion chamber A is located at the side of the body of heater,
Second burner B and the second combustion chamber B is located at the opposite side of the body of heater, the burning of the first burner A and the second burner B
Mouth brick is respectively protruding into the tapping of the first combustion chamber A and the second combustion chamber B, and extends in combustion chamber, the burner
Brick external metallization flanged plate is adopted with corresponding combustion chamber and is bolted connection；Coal is provided with the burner block of each burner
Gas spray gun, for combustion gas to be incorporated into combustion chamber, the flame for going out burner combustion burns in a combustion chamber, so that spoke
Penetrate inside pipe without flame front；Fig. 3 is the utility model combustion chamber space structure front view, shown in reference picture 3, described first
The inner space of combustion chamber A and the second combustion chamber B is in " inverted round stage " type structure along flame propagation direction, for improving flame propagation
Speed, Fig. 4 is the utility model combustion chamber space structure right view, shown in reference picture 4, the upper table surface of " inverted round stage "
The flame export being connected with radiant tube is uniformly provided with, the quantity of the flame export is identical with the radiant tube, and along the spoke
The distribution arrangement for penetrating pipe is set；At the flame export of the flame export of the first combustion chamber A and the second combustion chamber B, set respectively
There is radiant tube adpting flange 14, it is connected with radiant tube 9 by bolt, and each combustion chamber top is designed with described in one
Igniter burner, the igniter burner is deep into the inner space in " inverted round stage " type, also, igniter burner periphery
It is provided with igniter burner sleeve pipe.
According to some embodiments of the present utility model, shown in reference picture 1, the specific set-up mode of the radiant tube is unrestricted
System, can be positioned over furnace interior for horizontal mode, or a point row are arranged in furnace interior vertically, also or in " product " font cloth
Put, the radiant tube extends in the inner chamber of the body of heater, its one end passes through adpting flange with the flame export of the first combustion chamber A
Connection, the other end is connected with the flame export of the second combustion chamber B by adpting flange, and in the radiant tube axis and combustion chamber
The flame propagation direction it is in the same direction.
Single preheated air heat-storage type burner of device described in the utility model is combined by combustion chamber with radiant tube, is opened
Multitubular bundles radiant tube combustion device is sent, the device burns the flame that burner combustion goes out in a combustion chamber, and combustion chamber
Interior flame propagation direction is in the same direction with radiant tube axis, while another heat accumulating type of high-temperature flue gas uniformly through radiant tube UNICOM
Burner is discharged, and high-temperature flue gas are conducted heat by radiant tube to furnace interior, and radiant tube will not be produced in axial direction without flame front
Localized hyperthermia, while the radiant power of radiant tube is improve, service life of radiant tubes service life, each two burner and combustion chamber are
One group, the quantity of radiant tube can set multiple radiant tubes according to technological parameter, reduce input cost while reducing device
Install and use area, operation more facilitates, safety.
According to embodiment of the present utility model, Fig. 2 is the structural representation of the utility model burner, referring to Figures 1 and 2
Shown, single preheated air heat-storage type burner includes：Cover plate 1, body of air 2, heat-insulation layer 3, heat storage 4, burner block 5,
Gas spray gun 6 and adpting flange 7, wherein, the adpting flange of the body of air 2 is fixedly connected with the flange of burner block 5, described
Cover plate 1 is fastened by bolts with body of air 2, and heat-insulation layer 3 is arranged on the inside of body of air 2, forms the chamber that heat storage is placed
Body, the heat storage 4 is placed in the inside cavity, and the gas spray gun 6 includes cutting valve soon, the first burner A and the
The adpting flange 7 of two burner B is connected with two connectors of the four-way valve 13 by the metal flange on pipeline respectively
Connect, two other connector of four-way valve 13 is fastened with the metal flange of smoke evacuation house steward and air header respectively, the connection method
Valve is provided between blue 7 and the four-way valve, the break-make for controlling air in burner.
According to some embodiments of the present utility model, the course of work of the present utility model is：When the first burner A is burning
Side, the second burner B is smoke evacuation side, when the radiant tube is three, is first lighted igniter burner A, and 200 DEG C are reached in its temperature
More than, after stabilization burning, the first burner A, the valve of the second burner B metal flanges are opened, now four-way valve work, makes
The air pipe line for obtaining the first burner A is connected, while unlatching gas spray gun A's cuts valve soon so that the coal gas of the first burner A
Pipeline is connected, and the first burner A burnings, flame is propagated in the first combustion chamber A, will by the burning in the first combustion chamber A
High-temperature flue gas are reached in the second combustion chamber B through flame export by radiant tube 1,2,3, then through the heat storage in the second burner B
High-temperature flue gas are lowered the temperature, switching four-way valve connects smoke-exhaust pipeline, makes flue gas by the second burner B, then through with four-way
The smoke evacuation house steward of valve connection is discharged fume, according to the thermic load of burner, the air at room temperature air inlet accumulation of heat of certain flow
Body, by after heat storage, air at room temperature is preheated to 900 ~ 1000 DEG C, now whole combustion system is normally run；Described first
After a cycle commutating period, the four-way valve performs inverse operation, makes the first burner A for burner A and the second burner B
It is smoke evacuation side, the second burner B is combustion side, makes whole combustion system periodicity reversing combustion-smoke evacuation.This embodiment combustion gas is
Liquefied petroleum gas calorific value 12000kcal/m3, coefficient of excess air is 1.1, and the surface temperature of radiant tube 1,2,3 is right respectively after burning
810 DEG C are should be, 850 DEG C, 830 DEG C, every radiant tube axial direction temperature difference is ± 5 DEG C, and exhaust gas temperature is less than 150 DEG C.
Inventor has found that, according to thermal-storage burning device utilizing radiant tube described in the utility model, furnace atmosphere, temperature compare
Uniformly, in-furnace temperature fluctuation, without flame front inside radiant tube, will not produce localized hyperthermia at ± 5 DEG C, and the power of radiant tube can be with
Increase with the increase of burner rating, extend the service life of radiant tube；While required for reducing installation burner
Space, facilitate the arrangement of process pipeline, operation and maintenance is convenient, improves security, and further fume afterheat is returned
Receive, exhaust gas temperature can be controlled in less than 150 DEG C；In addition the combustion chamber structure of " inverted round stage " pattern of its uniqueness, can be by
Heat transfer between combustion chamber and radiant tube realizes that " seamless " is docked, and improves the heat utilization efficiency in combustion chamber, further carries
Radiant tube surface emissivity power high, and the quantity of radiant tube can set multiple radiant tubes according to technological parameter, reduce
Input cost reduces the area of installing and using of device simultaneously, and operation more facilitates, safety.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " illustrative examples ",
The description of " example ", " specific example " or " some examples " etc. means to combine specific features, the knot that the embodiment or example are described
Structure, material or feature are contained at least one embodiment of the present utility model or example.In this manual, to above-mentioned art
The schematic representation of language is not necessarily referring to identical embodiment or example.And, the specific features of description, structure, material or
Person's feature can in an appropriate manner be combined in one or more any embodiments or example.
In description of the present utility model, it is to be understood that term " on ", D score, "left", "right", " interior ", " outward " etc.
The orientation or position relationship of instruction are, based on orientation shown in the drawings or position relationship, to be for only for ease of description the utility model
Described with simplified, must be with specific orientation, with specific orientation structure rather than the device or element for indicating or imply meaning
Make and operate, therefore it is not intended that to limitation of the present utility model.Additionally, term " first ", " second " are only used for describing mesh
, and it is not intended that indicating or implying relative importance or the implicit quantity for indicating indicated technical characteristic.Thus, limit
Surely there is " first ", one or more this feature can be expressed or be implicitly included to the feature of " second ".It is new in this practicality
In the description of type, unless otherwise indicated, " multiple " is meant that two or more.
, it is necessary to explanation, unless otherwise clearly defined and limited, term " is pacified in description of the present utility model
Dress ", " connected ", " connection " should be interpreted broadly, for example, it may be fixedly connected, or be detachably connected, or integratedly
Connection；Can mechanically connect, or put connection；Can be joined directly together, it is also possible to be indirectly connected to by intermediary,
Can be two connections of element internal.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition
Concrete meaning of the language in the utility model.
Although embodiment of the present utility model has been shown and described above, it is to be understood that above-described embodiment is
Exemplary, it is impossible to it is interpreted as to limitation of the present utility model, one of ordinary skill in the art is in scope of the present utility model
It is interior above-described embodiment to be changed, changed, replaced and modification, simultaneously for those of ordinary skill in the art, foundation
The thought of the application, will change in specific embodiments and applications.
Claims (10)
1. a kind of New Regenerative radiant tube combustion device, it is characterised in that including：At least two single preheated air heat accumulating type combustions
Burner, body of heater（8）, at least three radiant tubes（9）, igniter burner（10）, igniter burner sleeve pipe（11）, at least two combustion chambers
（12）, four-way valve（13）；Single preheated air heat-storage type burner includes：Cover plate（1）, body of air（2）, heat-insulation layer（3）,
Heat storage（4）, burner block（5）, gas spray gun（6）, adpting flange（7）, wherein：
First burner A and the first combustion chamber A is located at the side of the body of heater, and the second burner B and the second combustion chamber B is located at institute
The opposite side of body of heater is stated, the burner block of the first burner A and the second burner B is respectively protruding into the first combustion chamber A
With the tapping of the second combustion chamber B, and extend in combustion chamber, the burner block external metallization flanged plate and corresponding combustion chamber
It is fastenedly connected；
Gas spray gun is provided with the burner block of each burner, for combustion gas to be incorporated into combustion chamber, fires burner
The flame for burning burns in a combustion chamber, so that without flame front inside radiant tube；
The inner space of the first combustion chamber A and the second combustion chamber B is in " inverted round stage " type structure along flame propagation direction, is used for
Flame propagation velocity is improved, the upper table surface of " inverted round stage " is provided with the flame export being connected with radiant tube；
The radiant tube extends in the inner chamber of the body of heater, and its one end passes through connection method with the flame export of the first combustion chamber A
Orchid connection, the other end is connected with the flame export of the second combustion chamber B by adpting flange, and the radiant tube axis and combustion chamber
The interior flame propagation direction is in the same direction.
2. device according to claim 1, it is characterised in that the body of air（2）Adpting flange and burner block（5）
Flange be fixedly connected, the cover plate（1）With body of air（2）It is fastened by bolts, heat-insulation layer（3）It is arranged on body of air
（2）Inside, formed heat storage place cavity, the heat storage（4）It is placed in the inside cavity.
3. device according to claim 2, it is characterised in that the connection method of the first burner A and the second burner B
It is blue（7）Respectively with the four-way valve（13）Two connectors be attached by the metal flange on pipeline, four-way valve (13)
Two other connector respectively with smoke evacuation house steward and air header metal flange fasten.
4. the device according to Claims 2 or 3, it is characterised in that burner block external metallization flanged plate and corresponding burning
Adopt and be bolted connection in room；The body of air（2）Adpting flange and burner block（5）Flange be fixedly connected with bolt；
At the flame export of the flame export of the first combustion chamber A and the second combustion chamber B, radiant tube adpting flange is respectively equipped with
（14）, itself and radiant tube（9）It is connected by bolt；Two other connector of four-way valve (13) respectively with smoke evacuation house steward and sky
The metal flange of gas house steward is fastened by bolts.
5. device according to claim 2, it is characterised in that each combustion chamber top is designed with a point and burns
Mouth, the igniter burner is deep into the inner space in " inverted round stage " type, also, the igniter burner periphery is provided with a little
Burn muzzle pipe.
6. the device according to any one of claim 1-3, it is characterised in that radiant tube（9）Horizontal mode is positioned over stove
Internal portion, or a point row are arranged in furnace interior vertically, also or in " product " font arrange.
7. the device according to any one of claim 1-3, it is characterised in that the adpting flange（7）With the four-way
Valve is provided between valve, the break-make for controlling air in burner.
8. the device according to any one of claim 1-3, it is characterised in that the gas spray gun（6）Including cutting valve soon.
9. the device according to any one of claim 1-3, it is characterised in that the flame of the upper table surface of " inverted round stage "
The quantity of outlet is identical with the radiant tube, and along the distribution arrangement setting of the radiant tube.
10. device according to claim 9, it is characterised in that the flame export is uniformly distributed on the upper table surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621383465.0U CN206280957U (en) | 2016-12-16 | 2016-12-16 | A kind of New Regenerative radiant tube combustion device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621383465.0U CN206280957U (en) | 2016-12-16 | 2016-12-16 | A kind of New Regenerative radiant tube combustion device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206280957U true CN206280957U (en) | 2017-06-27 |
Family
ID=59072430
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621383465.0U Withdrawn - After Issue CN206280957U (en) | 2016-12-16 | 2016-12-16 | A kind of New Regenerative radiant tube combustion device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206280957U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106482100A (en) * | 2016-12-16 | 2017-03-08 | 北京神雾环境能源科技集团股份有限公司 | A kind of New Regenerative radiant tube combustion device |
-
2016
- 2016-12-16 CN CN201621383465.0U patent/CN206280957U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106482100A (en) * | 2016-12-16 | 2017-03-08 | 北京神雾环境能源科技集团股份有限公司 | A kind of New Regenerative radiant tube combustion device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 102200 Beijing City, Changping District science and Technology Park Chang Huai Lu No. 155 Patentee after: Shenwu science and technology group Limited by Share Ltd Address before: 102200 Beijing city Changping District Machi Town cow Road No. 18 Patentee before: Beijing Shenwu Environment Energy Technology Group Co., Ltd. |
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| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20170627 Effective date of abandoning: 20190201 |