CN217302786U - Combustion spray pipe and combustor - Google Patents
Combustion spray pipe and combustor Download PDFInfo
- Publication number
- CN217302786U CN217302786U CN202220589692.8U CN202220589692U CN217302786U CN 217302786 U CN217302786 U CN 217302786U CN 202220589692 U CN202220589692 U CN 202220589692U CN 217302786 U CN217302786 U CN 217302786U
- Authority
- CN
- China
- Prior art keywords
- premixing
- pipe
- mixing
- gas
- cylinder
- 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
Landscapes
- Gas Burners (AREA)
Abstract
The utility model relates to a combustion spray pipe and a burner, wherein the combustion spray pipe comprises a gas pipe and a mixing pipe which are communicated and connected, a premixing device is arranged in the mixing pipe, and the premixing device comprises a premixing barrel; one end of the premixing cylinder is closed, the other end of the premixing cylinder is a necking air outlet end, the closed end of the premixing cylinder is close to the joint of the gas pipe and the mixing pipe, a circle of annular cylinder shoulder is fixedly connected to the outer side of the premixing cylinder, the annular cylinder shoulder is hermetically connected with the inner wall of the mixing pipe, a plurality of air inlets are formed in the circumferential wall surface of the premixing cylinder, and at least three flue gas inlets are formed in the wall surface of the mixing pipe. The utility model discloses install premixing device in the mixing tube, premixing device enables the gas directional diffusion all around, then makes air and flue gas and the gas flash mixed that enters into in the mixing drum, mixes effectually, has improved combustion efficiency.
Description
Technical Field
The present invention relates to the field of burner technology, and in particular, to a combustion nozzle and burner.
Background
The combustor generally includes central spray tube and burning spray tube, and the burning spray tube sets up many, and many burning spray tubes surround central spray tube and are the equipartition ring and establish. The gas introduced into the central jet pipe is used as ignition gas, and the ignition gas is input from the rear end of the central jet pipe and then is ignited and sprayed out from the front end of the central jet pipe. External fuel gas enters the combustion spray pipe and is sprayed out after being fully mixed with the flue gas, and the existing combustion spray pipe has the defect of poor mixing effect of the fuel gas and the flue gas, so that improvement and optimization are needed.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome the above-mentioned not enough that exists among the prior art, and provide a structural design is reasonable, gas and flue gas can automatic mixing's burning spray tube to a combustor that has this burning spray tube is provided.
The utility model provides a technical scheme that above-mentioned problem adopted is: the utility model provides a burning spray tube, includes gas pipe and hybrid tube, gas pipe and hybrid tube communicate with each other and connect its characterized in that: a premixing device is arranged in the mixing pipe, and the premixing device comprises a premixing barrel; one end of the premixing barrel is closed, the other end of the premixing barrel is a necking air outlet end, the closed end of the premixing barrel is close to the joint of the gas pipe and the mixing pipe, a circle of annular barrel shoulder is fixedly connected to the outer side of the premixing barrel, the annular barrel shoulder is hermetically connected with the inner wall of the mixing pipe, a plurality of air inlet holes are formed in the circumferential wall surface of the premixing barrel, at least three flue gas inlets are formed in the wall surface of the mixing pipe, the gas pipe, the mixing pipe and the premixing device are coaxially arranged, the flue gas inlets and the air inlet holes are uniformly distributed in a winding mode through coaxial lines, and the air outlet end is located in the central position of the coaxial lines.
Preferably, the air inlet holes are six.
Preferably, the diameter of the air inlet hole is 5-15 mm.
Preferably, the end part of the air outlet of the mixing pipe is an inclined opening.
Preferably, the inner diameter of the gas pipe is smaller than the inner diameter of the mixing pipe.
Preferably, the flue gas inlet is a specially-shaped hole with the diameter of about 30 square millimeters.
The utility model also provides a combustor, its characterized in that: the combustion nozzle described above is installed.
Compared with the prior art, the utility model, have following advantage and effect: install premixing device in the mixing tube, premixing device enables gas directional diffusion all around, then makes the air and the flue gas that enter into in the mixing tube and gas flash mixed, and it is effectual to mix, has improved combustion efficiency.
Drawings
In order to illustrate the embodiments of the present invention or the solutions in the prior art more clearly, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
Fig. 2 is a schematic structural view of a combustor mounted with the combustion nozzle of the present embodiment.
Description of reference numerals: a gas pipe 1; a mixing pipe 2; a premixing device 3; the premix barrel 31; an annular barrel shoulder 32; an intake port 33; an outlet end 34; a flue gas inlet 21.
Detailed Description
The present invention will be described in further detail by way of examples with reference to the accompanying drawings, which are illustrative of the present invention and are not intended to limit the present invention.
Examples are given.
See fig. 1-2.
The embodiment discloses a combustion nozzle, which comprises a gas pipe 1, a mixing pipe 2 and a premixing device 3 which are coaxially arranged. The inner diameter of the gas pipe 1 is smaller than that of the mixing pipe 2, the gas pipe and the mixing pipe are communicated, and the end part of the gas outlet of the mixing pipe 2 is an inclined opening. The premixing device 3 is installed in the mixing tube 2, and specifically, the premixing device 3 includes a premixing barrel 31; one end of the premixing cylinder 31 is closed, the other end of the premixing cylinder is a necking air outlet end 34, the closed end of the premixing cylinder is close to the joint of the gas pipe 1 and the mixing pipe 2, a ring of annular cylinder shoulder 32 is fixedly connected to the outer side of the premixing cylinder 31, the annular cylinder shoulder 32 is hermetically connected with the inner wall of the mixing pipe 2, and the premixing cylinder 31 is installed in the mixing pipe 2 through the annular cylinder shoulder 32.
In this embodiment, six air inlets 33 with a diameter of 5-15mm are formed in the circumferential wall surface of the premixing cylinder 31, the air inlets 33 are uniformly distributed around a coaxial line, three flue gas inlets 21 are formed in the wall surface of the mixing pipe 2, the flue gas inlets 21 are uniformly distributed around the coaxial line, the flue gas inlets 21 are specially-shaped holes about 30 square millimeters, and the air outlet end 34 of the premixing cylinder 31 is approximately located in the middle of the coaxial line. The air inlet holes 33 and the air outlet end 34 of the premixing cylinder 31 are respectively positioned at two sides of the annular cylinder shoulder 32, and the flue gas inlet 21 and the air outlet end 34 of the premixing cylinder 31 are positioned at the same side of the annular cylinder shoulder 32.
The embodiment also discloses a combustor which is provided with the combustion nozzle, and the combustor is shown in figure 2.
In this embodiment, the gas with a certain pressure enters the gas pipe 1, then enters the mixing pipe 2, and is directionally diffused along the periphery of the outer side wall surface of the premixing barrel 31, and is concentrated towards the center of the premixing barrel 31 through the six gas inlet holes 33, and then the gas is concentrated and is ejected from the gas outlet end 34, at this time, the external air and the flue gas enter the mixing pipe 2 from the flue gas inlet 21 and then are rapidly mixed with the gas ejected from the gas outlet end 34, and after the two gases are uniformly mixed in the mixing pipe 2, the two gases are ejected from the inclined opening of the mixing pipe 2 for combustion.
In addition, it should be noted that the specific embodiments described in the present specification may be different in the components, the shapes of the components, the names of the components, and the like, and the above description is only an example of the structure of the present invention. All the equivalent changes or simple changes made according to the structure, characteristics and principle of the patent idea of the utility model are included in the protection scope of the patent of the utility model. Various modifications, additions and substitutions may be made by those skilled in the art without departing from the scope of the invention as defined in the accompanying claims.
Claims (6)
1. The utility model provides a burning spray tube, includes gas pipe (1) and hybrid tube (2), gas pipe (1) and hybrid tube (2) communicate with each other and connect its characterized in that: a premixing device (3) is arranged in the mixing pipe (2), and the premixing device (3) comprises a premixing barrel (31); premix a section of thick bamboo (31) one end and seal, the other end is for being the end (34) of giving vent to anger of throat form to its confined end is close to the junction of gas pipe (1) and mixing tube (2), mixes a section of thick bamboo (31) outside fixed connection annular cylinder shoulder (32) in advance, annular cylinder shoulder (32) and mixing tube (2) inner wall sealing connection have seted up a plurality of inlet port (33) on the circumference wall of premixing a section of thick bamboo (31), have seted up three flue gas import (21) at least on the wall of mixing tube (2), gas pipe (1), mixing tube (2) and premixing device (3) coaxial arrangement.
2. The combustion nozzle as set forth in claim 1, wherein: six air inlet holes (33) are formed.
3. The combustion nozzle as set forth in claim 1, wherein: the diameter of the air inlet hole (33) is 5-15 mm.
4. The combustion nozzle as set forth in claim 1, wherein: the end part of the air outlet of the mixing pipe (2) is an inclined opening.
5. The combustion nozzle as set forth in claim 1, wherein: the inner diameter of the gas pipe (1) is smaller than that of the mixing pipe (2).
6. A burner, characterized by: fitted with a combustion nozzle according to any one of claims 1 to 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220589692.8U CN217302786U (en) | 2022-03-17 | 2022-03-17 | Combustion spray pipe and combustor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220589692.8U CN217302786U (en) | 2022-03-17 | 2022-03-17 | Combustion spray pipe and combustor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217302786U true CN217302786U (en) | 2022-08-26 |
Family
ID=82936812
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220589692.8U Active CN217302786U (en) | 2022-03-17 | 2022-03-17 | Combustion spray pipe and combustor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217302786U (en) |
-
2022
- 2022-03-17 CN CN202220589692.8U patent/CN217302786U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110631049B (en) | Soft combustion chamber of gas turbine | |
| CN110056906B (en) | Coaxial staged swirl and blending integrated head for gaseous fuel combustor | |
| CN109404967B (en) | Combustion chamber of gas turbine and gas turbine | |
| CN107575864B (en) | Linear low-nitrogen gas combustion head | |
| CN217302786U (en) | Combustion spray pipe and combustor | |
| CN219494089U (en) | Direct injection burner | |
| CN217952273U (en) | Low-nitrogen internal circulation combustor | |
| CN215723204U (en) | Diffusion type low NOx self-preheating radiant tube burner with flue gas backflow | |
| CN217441639U (en) | Combustion nozzle for combustor | |
| CN214275718U (en) | Low-nitrogen combustion device suitable for small and medium-sized gas-fired boilers | |
| CN211060114U (en) | A high-efficient air-fuel mixing structure for full premix combustor | |
| CN108332205A (en) | A kind of ejection structure of two-chamber direct-injection burner | |
| CN207849370U (en) | A kind of carbon black tail gas low NO structure | |
| CN109469900B (en) | Burner head and burner comprising same | |
| CN209782614U (en) | Burner head and burner comprising same | |
| CN218672163U (en) | Low-heat-value low-NOx gas burner with small throat | |
| CN214094458U (en) | Burner spray gun and drying device | |
| CN218025825U (en) | Core assembly of burner for cooling part of glass kiln | |
| CN114719261A (en) | Venturi combustion spray pipe and combustor | |
| CN112413583A (en) | Porous biomass gas low-nitrogen combustor | |
| CN219083088U (en) | Ultralow nitrogen integrated burner | |
| CN220017355U (en) | Burner of gas water heater | |
| CN214468626U (en) | Spiral-flow type premixing combustion nozzle and combustor | |
| CN216281365U (en) | Flue gas single cycle's ultralow nitrogen combustor | |
| CN218269050U (en) | Flue gas inner loop low NOx burner |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230419 Address after: No. 360 Changhe Road, Chang'an Town, Haining City, Jiaxing City, Zhejiang Province, 314400 Patentee after: KAM (Zhejiang) Thermal Equipment Co.,Ltd. Address before: 310009 room 1021, building 3, yunyuewan, Shangcheng District, Hangzhou City, Zhejiang Province Patentee before: Kam (Hangzhou) thermal energy equipment Co.,Ltd. |