CN111102570B - Low-nitrogen gas boiler suitable for different altitudes - Google Patents
Low-nitrogen gas boiler suitable for different altitudes Download PDFInfo
- Publication number
- CN111102570B CN111102570B CN202010001064.9A CN202010001064A CN111102570B CN 111102570 B CN111102570 B CN 111102570B CN 202010001064 A CN202010001064 A CN 202010001064A CN 111102570 B CN111102570 B CN 111102570B
- Authority
- CN
- China
- Prior art keywords
- blower
- pipeline
- air
- oxygen content
- unit time
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
- F23D14/02—Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
- F23D14/46—Details, e.g. noise reduction means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
- F23D14/46—Details, e.g. noise reduction means
- F23D14/60—Devices for simultaneous control of gas and combustion air
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
- F23D14/46—Details, e.g. noise reduction means
- F23D14/62—Mixing devices; Mixing tubes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23L—SUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL ; VALVES OR DAMPERS SPECIALLY ADAPTED FOR CONTROLLING AIR SUPPLY OR DRAUGHT IN COMBUSTION APPARATUS; INDUCING DRAUGHT IN COMBUSTION APPARATUS; TOPS FOR CHIMNEYS OR VENTILATING SHAFTS; TERMINALS FOR FLUES
- F23L5/00—Blast-producing apparatus before the fire
- F23L5/02—Arrangements of fans or blowers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N5/00—Systems for controlling combustion
- F23N5/26—Details
- F23N5/265—Details using electronic means
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Regulation And Control Of Combustion (AREA)
Abstract
The invention discloses a low-nitrogen gas boiler suitable for different altitudes, which comprises: the oxygen content analyzer is used for detecting oxygen content information of the air; the control mechanism is connected with the oxygen content analyzer and used for receiving the oxygen content information detected by the oxygen content analyzer; the control mechanism adjusts the blast volume of the at least one blower per unit time according to the oxygen content information; a boiler body connected with at least one blower. The invention can be suitable for different altitudes, improves the premixing effect of gas, is beneficial to full combustion of gas and reduces the emission of NOx.
Description
Technical Field
The invention relates to the technical field of environment-friendly combustion equipment. More particularly, the present invention relates to a low-nitrogen gas boiler adapted to different altitudes.
Background
The low-nitrogen gas-fired boiler suitable for different altitudes refers to a combustion boiler with low discharge of nitrogen oxides (NOx) in the fuel combustion process, and can reduce the discharge of NOx in the combustion process by adopting the low-nitrogen combustion boiler, wherein NOx mainly comprises NO and NO2。
Existing low-nitrogen gas boilers adapted to different altitudes generally adopt fully premixed burners. Because the oxygen content in the plateau or high-altitude area is lower, the oxygen content capable of supporting combustion is less under the condition of a certain air flow, the accuracy requirement of the full premix burner on the content of each component of the gas fuel is higher, and when the oxygen content in the combustion-supporting gas is too highHigh time, NO in tail gas2When the oxygen content is too low, the gas fuel cannot be sufficiently combusted. Therefore, if the low-nitrogen gas boiler adapted to different altitudes cannot detect the altitude or adopts the same operation mode as that of the plain, the combustion state will be poor. Therefore, the energy is wasted, and inconvenience is brought to boiler operators and even users.
Disclosure of Invention
An object of the present invention is to solve at least the above problems and to provide at least the advantages described later.
It is still another object of the present invention to provide a low-nitrogen gas boiler adapted to different altitudes, which can be adapted to different altitudes, and which improves the premixing effect of gas, facilitates the sufficient combustion of gas, and reduces the amount of NOx emissions.
To achieve these objects and other advantages in accordance with the present invention, there is provided a low-nitrogen gas boiler adapted to different altitudes, comprising: the oxygen content analyzer is used for detecting oxygen content information of the air;
the control mechanism is connected with the oxygen content analyzer and used for receiving the oxygen content information detected by the oxygen content analyzer;
the control mechanism adjusts the blast volume of the at least one blower per unit time according to the oxygen content information;
a boiler body connected with at least one blower.
Preferably, the control mechanism includes: the storage module is internally stored with a parameter corresponding table, wherein the parameter corresponding table is a corresponding table of oxygen content information and blast volume information of at least one blower in unit time;
and the control module is connected with the storage module and the at least one blower and is used for receiving the oxygen content information, acquiring the unit time blast volume information of the at least one blower according to the parameter corresponding table and regulating and controlling the unit time blast volume of the corresponding blower according to the unit time blast volume information.
Preferably, there are 2 at least one blower;
boiler body includes the premix pipe of one end rather than intercommunication, premix pipe includes the first pipeline of three column of coaxial setting, is connected with a globular second pipeline between per two adjacent first pipelines, and every second pipeline includes:
the two wind shields are arranged on the inner side wall of each second pipeline and are symmetrical about the axis of the first pipeline, and an elastic rod is connected between one end part of each wind shield and the inner side wall of the second pipeline;
the two air inlets are arranged on the outer side wall of one end, far away from the boiler body, of each second pipeline, the two air inlets are communicated with the air outlet of one of the blowers through pipelines, and the extension line of each air inlet is intersected with the side face of the air baffle closest to the air inlet;
the parameter corresponding table also comprises a corresponding table of the blast volume information of the blower in unit time and the working time information of the blower, and the working time of the blower is the oscillation time of the wind shield under the blast volume of the blower in unit time corresponding to the blast volume information in unit time;
and the control module alternately controls one of the two blowers to operate according to the blast volume information in unit time and the working time length information of the blowers.
Preferably, there are 3 at least one blower;
the premixing pipeline further comprises an air duct, wherein the air duct is coaxially sleeved with the boiler body and communicated with the first pipeline, one end of the boiler body is far away from the first pipeline, the outer side wall of the second pipeline is fixedly connected in a sealing mode, the other end of the air duct is sleeved with the air duct, the first pipeline forms an air outlet, and the air duct is communicated with an air outlet of the remaining air blower through a pipeline.
Preferably, the distance between the two wind deflectors within each second duct is not less than the length of the internal diameter of the first duct.
Preferably, an extension line of each air inlet intersects with one end of the corresponding wind shield far away from the inner side wall of the boiler body.
The invention at least comprises the following beneficial effects:
firstly, because the oxygen content analyzer is added on the low-nitrogen gas boiler, the oxygen content analyzer detects the oxygen content information in the air, and the control mechanism adjusts the blast volume of at least one air blower in unit time after receiving the oxygen content information, so that the gas is matched with the air content, the resource waste is avoided, the condition of NOx increase caused by excessive air is also avoided, and the low-nitrogen gas boiler can be suitable for different altitudes.
Secondly, the premixing pipeline is arranged into three columnar first pipelines, a spherical second pipeline is communicated between every two adjacent first pipelines, each second pipeline is provided with an air inlet, air enters the premixing pipeline in batches through the two second pipelines to be mixed with gas, the inner diameter of each second pipeline is larger than that of each first pipeline, the flow speed of the gas in the second pipelines is reduced, and therefore the premixing effect is improved; secondly all set up the deep bead that can vibrate in every second pipeline, the air that gets into through the air inlet can blow in the deep bead side, when the air inlet stops admitting air, the deep bead can vibrate along with the vibration of elastic rod to play the effect of premixing gas and air, in order to make this function incessant that mixes in advance, the event is equipped with two the same second pipelines, and control module controls a air-blower operation in two second pipelines correspond the air-blower of connecting in turn. The invention improves the premixing effect of gas, is beneficial to full combustion reduction of gas and reduces the discharge amount of NOx.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.
Drawings
FIG. 1 is a schematic connection diagram of the structures of a low-nitrogen gas-fired boiler adapted to different altitudes according to one embodiment of the present invention;
FIG. 2 is a cross-sectional view of a premix tube according to one embodiment of the present invention.
Reference numerals: the system comprises an oxygen content analyzer 1, a control mechanism 2, a storage module 21, a control module 22, at least one air blower 3, a boiler body 4, a premixing pipeline 41, a first pipeline 42, a second pipeline 43, an air inlet 44, an air baffle 45, an elastic rod 46, an air duct 47 and an air outlet 48.
Detailed Description
The present invention is further described in detail below with reference to the attached drawings so that those skilled in the art can implement the invention by referring to the description text.
It will be understood that terms such as "having," "including," and "comprising," as used herein, do not preclude the presence or addition of one or more other elements or groups thereof.
As shown in fig. 1-2, the present invention provides a low-nitrogen gas boiler adapted to different altitudes, comprising:
an oxygen content analyzer 1 for detecting oxygen content information of air;
a control mechanism 2 connected to the oxygen content analyzer 1 for receiving the oxygen content information detected by the oxygen content analyzer 1;
at least one blower 3 connected with the control mechanism 2, wherein the control mechanism 2 adjusts the blowing amount of the at least one blower 3 per unit time according to the oxygen content information;
a boiler body 4 connected with at least one blower 3.
In the technical scheme, an oxygen content analyzer 1 is connected with a control mechanism 2, the control mechanism 2 is connected with at least one air blower 3, and the at least one air blower 3 is connected with a boiler body 4, wherein the oxygen content analyzer 1 is used for detecting oxygen content information in air at the position of the boiler body 4 and then transmitting the information to the control mechanism 2, and the control mechanism 2 adjusts the air blowing amount of the air blower 3 in unit time according to the information to enable gas to be matched with the air content; by adopting the technical scheme, the resource waste is avoided, the condition that the NOx is increased due to excessive air is also avoided, and the method and the device can be suitable for different altitudes.
In another solution, the control mechanism 2 comprises:
the storage module 21 is internally stored with a parameter corresponding table, wherein the parameter corresponding table is a corresponding table of oxygen content information and blast volume information of at least one blower 3 in unit time;
and the control module 22 is connected with the storage module 21 and the at least one blower 3, and is configured to obtain the unit-time blowing amount information of the at least one blower 3 according to the parameter mapping table after receiving the oxygen content information, and regulate and control the unit-time blowing amount of the corresponding blower 3 according to the unit-time blowing amount information. With this arrangement, the control means 2 is enabled to control the amount of air blown by the blower 3 per unit time.
In another technical scheme, the number of the at least one blower 3 is 2;
the boiler body 4 comprises a premixing pipe 41 with one end communicated with the boiler body, the premixing pipe 41 comprises three cylindrical first pipes 42 coaxially arranged, a spherical second pipe 43 with an inner diameter larger than that of each first pipe 42 is connected between every two adjacent first pipes 42, and each second pipe 43 comprises:
two wind deflectors 45 arranged on the inner side wall of each second pipeline 43 and symmetrical with respect to the axis of the first pipeline 42, wherein an elastic rod 46 is connected between one end part of each wind deflector 45 and the inner side wall of the second pipeline 43;
two air inlets 44, which are arranged on the outer side wall of one end of each second pipeline 43 far away from the boiler body 4, wherein the two air inlets 44 are communicated with the air outlet of one blower 3 through pipelines, and the extension line of each air inlet 44 is intersected with the side surface of the air baffle 45 nearest to the air inlet;
the parameter correspondence table further comprises a correspondence table of the unit time blast volume information of the blower 3 and the working time length information of the blower 3, and the working time length of the blower 3 is the oscillation time length of the wind shield 45 under the unit time blast volume corresponding to the unit time blast volume information of the blower 3;
the control module 22 alternately controls one blower 3 of the two blowers 3 to operate according to the blowing amount information in unit time and the working time length information of the blower 3.
In the above technical solution, the premixing pipes 41 are arranged into three columnar first pipes 42, and a spherical second pipe 43 with an inner diameter larger than that of each first pipe 42 is communicated between every two adjacent first pipes 42, an air inlet 44 is arranged on the outer side wall of each second pipe 43 in a penetrating manner, and a wind deflector 45 capable of vibrating is arranged on the inner side wall, the air inlet 44 is communicated with one of the air blowers 3 through a pipe, air entering through the action of the air blower 3 can be blown onto the wind deflector 45, and when the air inlet 44 stops introducing air, the wind deflector 45 vibrates due to the elastic action. In order to enable the wind shield 45 to continuously vibrate in the process of premixing gas and air, the parameter correspondence table also comprises a correspondence table of the blast volume information of the air blower 3 in unit time and the working time length information of the air blower 3, the working time length of the air blower 3 is the vibration time length of the wind shield 45 under the blast volume of the air blower 3 in unit time corresponding to the blast volume information in unit time, wherein the vibration time length of the wind shield 45 refers to the vibration capable of playing the effect of premixing gas and air, when the vibration amplitude is small and the premixing effect cannot be played, the vibration is regarded as static, then the control module 22 controls one air blower 3 of the two air blowers 3 to operate alternatively according to the blast volume information in unit time and the working time length information of the air blower 3, and the wind shield 45 also vibrates alternatively due to the alternate operation of the air blowers 3. By adopting the technical scheme, the premixing effect of the gas is improved, the full combustion of the gas is facilitated, and the emission of NOx is reduced.
In another technical scheme, the number of the at least one blower 3 is 3;
the premixing pipeline 41 further comprises an air duct 47, the coaxial sleeve of which is arranged on the outer side of the first pipeline 42 communicated with the boiler body 4 and is far away from one end of the boiler body 4 and the outer side wall of the second pipeline 43, the other end of the air duct 47 is fixedly connected with the outer side wall of the first pipeline 42 to form an air outlet 48, wherein the air duct 47 is communicated with the air outlet of the remaining air blower 3 through a pipeline.
With this arrangement, the amount of air passing through the premix conduit 41 is preferably 70% of the total air amount and the amount of air passing through the air duct 47 is preferably 30% of the total air amount when the boiler is operated. When the premixed gas entering the boiler body 4 through the premixing pipeline 41 is combusted, the air passing through the air duct 47 is mixed with the premixed gas to form combustion flame with thick inside and thin outside, the temperature of the flame is inhibited, and the amount of NOx generated by the boiler is reduced.
In another technical solution, the distance between the two wind deflectors 45 in each second duct 43 is not less than the length of the inner diameter of the first duct 42, so as to prevent the wind deflectors 45 from blocking the circulation of gas and air.
In another technical scheme, the extension line of each air inlet 44 intersects with one end of the corresponding wind shield 45 far away from the inner side wall of the boiler body 4, and by adopting the technical scheme, under the condition of the same blast volume per unit time, the wind shield 45 has the best oscillation effect and the best premixing effect.
The number of apparatuses and the scale of the process described herein are intended to simplify the description of the present invention. Applications, modifications and variations of the present invention to accommodate low nitrogen gas boilers of different altitudes will be apparent to those skilled in the art.
While embodiments of the invention have been described above, it is not limited to the applications set forth in the description and the embodiments, which are fully applicable in various fields of endeavor to which the invention pertains, and further modifications may readily be made by those skilled in the art, it being understood that the invention is not limited to the details shown and described herein without departing from the general concept defined by the appended claims and their equivalents.
Claims (4)
1. Adapt to different altitude's low nitrogen gas boiler, its characterized in that includes:
the oxygen content analyzer is used for detecting oxygen content information of the air;
the control mechanism is connected with the oxygen content analyzer and used for receiving the oxygen content information detected by the oxygen content analyzer;
the control mechanism adjusts the blast volume of the at least one blower per unit time according to the oxygen content information;
a boiler body connected with at least one blower;
the control mechanism includes:
the storage module is internally stored with a parameter corresponding table, wherein the parameter corresponding table is a corresponding table of oxygen content information and blast volume information of at least one blower in unit time;
the control module is connected with the storage module and the at least one blower and is used for receiving the oxygen content information, then acquiring the unit time blast volume information of the at least one blower according to the parameter corresponding table and regulating and controlling the unit time blast volume of the corresponding blower according to the unit time blast volume information;
at least one blower is 2;
boiler body includes the premix pipe of one end rather than intercommunication, premix pipe includes the first pipeline of three column of coaxial setting, is connected with an internal diameter between per two adjacent first pipelines and is greater than the globular second pipeline of first pipeline, every second pipeline includes:
the two wind shields are arranged on the inner side wall of each second pipeline and are symmetrical about the axis of the first pipeline, and an elastic rod is connected between one end part of each wind shield and the inner side wall of the second pipeline;
the two air inlets are arranged on the outer side wall of one end, far away from the boiler body, of each second pipeline, the two air inlets are communicated with the air outlet of one of the blowers through pipelines, and the extension line of each air inlet is intersected with the side face of the air baffle closest to the air inlet;
the parameter corresponding table also comprises a corresponding table of the blast volume information of the blower in unit time and the working time information of the blower, and the working time of the blower is the oscillation time of the wind shield under the blast volume of the blower in unit time corresponding to the blast volume information in unit time;
and the control module alternately controls one of the two blowers to operate according to the blast volume information in unit time and the working time length information of the blowers.
2. The low-nitrogen gas boiler adapted to different altitudes as claimed in claim 1, wherein at least one blower is 3;
the premixing pipeline further comprises an air duct, wherein the air duct is coaxially sleeved with the boiler body and communicated with the first pipeline, one end of the boiler body is far away from the first pipeline, the outer side wall of the second pipeline is fixedly connected in a sealing mode, the other end of the air duct is sleeved with the air duct, the first pipeline forms an air outlet, and the air duct is communicated with an air outlet of the remaining air blower through a pipeline.
3. The low nitrogen gas boiler adapted to different altitudes as claimed in claim 1, wherein a distance between two wind deflectors in each second duct is not less than an inner diameter length of said first duct.
4. A low-nitrogen gas boiler adapted to different altitudes as claimed in claim 1, wherein an extension line of each air inlet intersects with an end of the corresponding wind shield far from an inner side wall of said boiler body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010001064.9A CN111102570B (en) | 2020-01-02 | 2020-01-02 | Low-nitrogen gas boiler suitable for different altitudes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010001064.9A CN111102570B (en) | 2020-01-02 | 2020-01-02 | Low-nitrogen gas boiler suitable for different altitudes |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111102570A CN111102570A (en) | 2020-05-05 |
| CN111102570B true CN111102570B (en) | 2021-08-03 |
Family
ID=70425805
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010001064.9A Active CN111102570B (en) | 2020-01-02 | 2020-01-02 | Low-nitrogen gas boiler suitable for different altitudes |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111102570B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0942653A (en) * | 1995-07-31 | 1997-02-14 | Corona Corp | Combustion controller |
| CN2597837Y (en) * | 2002-12-20 | 2004-01-07 | 张凯 | Fuel oil or gas boiler suitable for high-elevation area |
| CN102661627A (en) * | 2010-11-18 | 2012-09-12 | 托马斯及贝茨国际股份有限公司 | Premix air heater |
| EP2592344A1 (en) * | 2011-11-08 | 2013-05-15 | Guillot Industrie | Pre-mix gas boiler |
| CN110186044A (en) * | 2019-06-26 | 2019-08-30 | 北京泷涛环境科技有限公司 | Air-gas partial premix combustor |
| CN209706352U (en) * | 2019-01-31 | 2019-11-29 | 欧姆龙电子部件贸易(上海)有限公司 | The detection device and gas heater of gas heater |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090197212A1 (en) * | 2008-02-04 | 2009-08-06 | Maxitrol Company | Premix Burner Control System and Method |
-
2020
- 2020-01-02 CN CN202010001064.9A patent/CN111102570B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0942653A (en) * | 1995-07-31 | 1997-02-14 | Corona Corp | Combustion controller |
| CN2597837Y (en) * | 2002-12-20 | 2004-01-07 | 张凯 | Fuel oil or gas boiler suitable for high-elevation area |
| CN102661627A (en) * | 2010-11-18 | 2012-09-12 | 托马斯及贝茨国际股份有限公司 | Premix air heater |
| EP2592344A1 (en) * | 2011-11-08 | 2013-05-15 | Guillot Industrie | Pre-mix gas boiler |
| CN209706352U (en) * | 2019-01-31 | 2019-11-29 | 欧姆龙电子部件贸易(上海)有限公司 | The detection device and gas heater of gas heater |
| CN110186044A (en) * | 2019-06-26 | 2019-08-30 | 北京泷涛环境科技有限公司 | Air-gas partial premix combustor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111102570A (en) | 2020-05-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4162140A (en) | NOx abatement in burning of gaseous or liquid fuels | |
| EP0088116A1 (en) | High efficiency gas burner | |
| JPH1089628A (en) | Premixing gas combustion device | |
| CN111102570B (en) | Low-nitrogen gas boiler suitable for different altitudes | |
| CN111911917A (en) | Flue gas circulating device for combustor | |
| CN208487614U (en) | A kind of low NOx updraft burner | |
| CN207298942U (en) | Injection flue gas type low nitrogen oxide burner | |
| US2982347A (en) | Fuel burning method and apparatus | |
| CN207778435U (en) | A kind of carbon black tail gas low NO | |
| CN210740388U (en) | A kind of burner | |
| US8544334B2 (en) | Systems, methods, and apparatus for compensating atmospheric pressure measurements in fired equipment | |
| CN211575107U (en) | Low-nitrogen premixed flue gas internal circulation gas burner | |
| US6409502B2 (en) | Gas burners for heating a gas flowing in a duct | |
| CN209470215U (en) | Burner and central flame flame boiler containing it | |
| CN105886752A (en) | Thermal treatment furnace for steel wires | |
| CN110566946A (en) | A kind of burner | |
| CN215372459U (en) | Low-nitrogen combustion device with flue gas internal circulation | |
| CN217816744U (en) | Partially premixed blue flame porous medium combustor | |
| CN219389725U (en) | Low-nitrogen gas burner | |
| CN216281365U (en) | Flue gas single cycle's ultralow nitrogen combustor | |
| RU157977U1 (en) | BLOCK ACOUSTIC BURNER | |
| JPH0749221Y2 (en) | Exhaust gas reburn burner | |
| JPS6138310A (en) | Gas burner and combustion controlling method thereof | |
| CN209588059U (en) | Air fuel gas mixing chamber and wall-hung boiler with air fuel gas mixing chamber | |
| CN219656069U (en) | Air guide piece and combustor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20210430 Address after: 100176 No.12 Yuncheng street, economic and Technological Development Zone, Daxing District, Beijing Applicant after: Beijing Thermal Equipment Manufacturing Co.,Ltd. Address before: 100023 east of the first work station (Banbidian Village) in Xizhihe village, Shibalidian Township, Chaoyang District, Beijing and North Bank of xiaotaihou River Applicant before: BEIJING WEIYE HEAT SUPPLY EQUIPMENT Co.,Ltd. |
|
| TA01 | Transfer of patent application right | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |