CN210979841U - Stable combustion injection device for gas center - Google Patents
Stable combustion injection device for gas center Download PDFInfo
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- CN210979841U CN210979841U CN201921906189.5U CN201921906189U CN210979841U CN 210979841 U CN210979841 U CN 210979841U CN 201921906189 U CN201921906189 U CN 201921906189U CN 210979841 U CN210979841 U CN 210979841U
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- gas
- stable combustion
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- pipe
- ignition
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- 238000002485 combustion reaction Methods 0.000 title claims abstract description 54
- 238000002347 injection Methods 0.000 title claims abstract description 29
- 239000007924 injection Substances 0.000 title claims abstract description 29
- 238000010304 firing Methods 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 142
- 239000007921 spray Substances 0.000 description 36
- 239000000203 mixture Substances 0.000 description 18
- 239000000446 fuel Substances 0.000 description 8
- 239000002737 fuel gas Substances 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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Abstract
The utility model relates to a surely fire injection apparatus for gas center, including main gas pipe, the ignition needle, the side at main gas pipe is fixed through fixed bolster I to the ignition gas pipe, the ignition needle passes through II fixed connection of fixed bolster at the anterior segment of ignition gas pipe, still include annular branch air feed seat and surely fire the injector head, there are two piece at least gas branch pipes at the front end radial equipartition of main gas pipe, the front end of gas branch pipe all extends to in the annular branch air feed seat, the rear end of surely firing the injector head is equipped with annular gas passageway, annular gas passageway and the sealed assembly of annular branch air feed seat, form complete air feed loop, be equipped with a plurality of outside jet orifice on the lateral surface of surely firing the injector head, be equipped with at least one inboard jet orifice on the medial surface of surely firing the injector head. The beneficial effects are that: the combustion efficiency is improved, and the safety, the economy and the practicability are improved well.
Description
Technical Field
The utility model relates to a combustor technical field, in particular to surely fire injection apparatus for gas center.
Background
At present, the central stable combustion device equipped on the industrial burner mainly comprises two types:
one is that the front end of the head part of the gas straight pipe is opened and is arranged in a central sleeve pipe in the head part of the burner. A gap is left between the single gas pipe and the central sleeve. When the fuel injection device works, a fuel channel is arranged inside the fuel straight pipe, and fuel is directly injected through the head of the fuel straight pipe. The gap between the single gas pipe and the central sleeve is a combustion-supporting air channel.
The other type is that the front end of the head part of the gas straight pipe is sealed, small holes are radially and uniformly distributed at the front end of the head part of the gas straight pipe, and the gas straight pipe is arranged in a central sleeve in the head part of the burner. A gap is left between the gas pipe and the central sleeve. When the single gas straight pipe works, a fuel channel is arranged in the single gas straight pipe, and fuel is injected through small holes which are radially and uniformly distributed at the front end of the head. The gap between the gas pipe and the central sleeve is a combustion-supporting air channel.
The two central stable combustion devices are designed by a single pipe and a single nozzle, and the torch is small, the flame is uneven and the combustion is unstable during working. Poor reliability and poor practicability.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a stable combustion injection device with simple structure and high stability is provided.
The technical scheme is as follows,
a stable combustion injection device for a gas center comprises a main gas pipe, an ignition gas pipe and an ignition needle, the ignition gas pipe is fixed on the side surface of the main combustion pipe through a fixing support I, the ignition needle is fixedly connected to the front section of the ignition gas pipe through a fixing support II, it is characterized by also comprising an annular branch gas supply seat and a stable combustion injector head, wherein at least two gas branch pipes are radially and uniformly distributed at the front end of the main gas pipe, the front ends of the gas branch pipes extend into the annular branch gas supply seats, the rear ends of the stable combustion injector heads are provided with annular gas channels, the annular gas channel is hermetically assembled with the annular branch gas supply seat to form a complete gas supply loop, the outer side surface of the stable combustion injector head is provided with a plurality of outer side injection holes, and the inner side surface of the stable combustion injector head is provided with at least one inner side injection hole.
As a further improvement, four gas branch pipes are radially and uniformly distributed at the front end of the main gas pipe.
As a further improvement, the outer-side gas spray holes are composed of an upper left radial gas spray hole, an upper right radial gas spray hole and a lower radial gas spray hole which are uniformly distributed on the outer side surface of the annular gas channel to form outer-ring flame.
As a further improvement, the upper left radial gas spray hole, the upper right radial gas spray hole and the lower radial gas spray hole are all six, and the six holes are designed in a group of two.
As a further improvement, the inner side jet holes are three, specifically, an upper inner radial gas jet hole, a right inner radial gas jet hole and a left inner radial gas jet hole, which are uniformly distributed on the inner side surface of the annular gas channel to form central flame.
Advantageous effects
The beneficial effects are that: the stable combustion injector head is arranged and supplied by fuel in a porous, layered and segmented way; combustion-supporting air is distributed and supplied through the inner side and the outer side; the formed combustible gas mixture is full and uniform, the combustion is continuous and stable, the combustion efficiency is improved, and the safety, the economy and the practicability are improved well.
Drawings
The present invention will be further described with reference to the accompanying drawings and embodiments.
FIG. 1 is the overall structure diagram of the present invention
FIG. 2 is an assembly front view of the gas branch pipe and the annular branch gas supply base of the present invention;
FIG. 3 is a cross-sectional view taken along line A-A of FIG. 2;
FIG. 4 is a side view of the stable combustion injector head of the present invention;
FIG. 5 is a cross-sectional view taken along line B-B of FIG. 4;
fig. 6 is a cross-sectional view of the portion C-C of fig. 5.
Reference numbers in the figures:
1. main gas pipe 11 and gas branch pipe
2. Fixed bolster I3, fixed bolster II
4. Ignition gas pipe 5, ignition needle
6. Annular branch gas supply seat 7 and stable combustion injector head
71. Upper left radial gas jet hole 72 and upper right radial gas jet hole
73. Lower radial gas jet hole 74 and upper inner radial gas jet hole
75. Right inner radial gas jet hole 76 and left inner radial gas jet hole
Detailed Description
In order to further understand and appreciate the structural features and advantages of the present invention, preferred embodiments and the accompanying drawings are described in detail as follows:
as shown in fig. 1, a stable combustion injection device for a gas center comprises a main gas pipe 1, an ignition gas pipe 4 and an ignition needle 5, wherein the main gas pipe 1 is used for providing a gas conveying channel for a stable combustion injection head, and is used as a keel of the stable combustion injection device for the gas center to fix a point fire gas pipe 4; the ignition gas pipe 4 serves on the one hand to provide an ignition gas feed channel and on the other hand to fix the ignition needle 5; the ignition needle 5 consists of an insulating ceramic tube and an electrode wire, and the electrode wire and a tube wall at the front end of the ignition gas tube form stable high-voltage electric arc to form stable ignition flame. The ignition gas pipe 4 is fixed on the side surface of the main gas pipe 1 through the fixing support I2, and the relative position between the ignition gas pipe 4 and the main gas pipe 1 is ensured not to change through the fixation of the fixing support I2; ignition needle 5 is through II 3 fixed connection of fixed bolster at the anterior segment of ignition gas pipe 4, ensures that ignition needle 5 and the relative position does not change between ignition gas pipe 4, guarantees the success rate of igniteing. Surely fire injection apparatus still includes annular branch gas supply seat 6 and surely fires injector head 7, radial equipartition has two piece at least gas branch pipes 11 in the front end of main gas pipe 1, the front end of gas branch pipe 11 all extends to in the annular branch gas supply seat 6, rear end at surely fire injector head 7 is equipped with annular gas passageway, annular gas passageway and the sealed assembly of annular branch gas supply seat 6 form complete gas supply loop, the center of surely firing the injector head is circular channel, stably fire the injector head for the center and provide combustion-supporting wind. The outer side surface of the stable combustion injector head is provided with a plurality of outer side injection holes, and the inner side surface of the stable combustion injector head is provided with at least one inner side injection hole.
As shown in fig. 4-6, the outer gas nozzles are composed of an upper left radial gas nozzle 71, an upper right radial gas nozzle 72, and a lower radial gas nozzle 73, and are uniformly distributed on the outer side surface of the annular gas channel to form outer ring flames. The upper left radial gas spray hole, the upper right radial gas spray hole and the lower radial gas spray hole are all six, and the six holes are designed in a group of two.
The upper left radial gas spray holes 71 are used for providing outer upper left radial gas, the gas is mixed with combustion-supporting air outside the stable combustion spray head 7 to form an upper left radial combustible gas mixture, and when the gas mixture passes through the front end of the stable combustion spray head 7, a part of the gas mixture flows to the upper left axial direction of the front end of the stable combustion spray head 7 to form upper left axial flame; one part forms upper left backflow at the front end of the stable combustion spray head 7 to form upper left backflow flame.
The upper right radial gas spray hole 72 is used for providing outer upper right radial gas, the gas is mixed with combustion-supporting air outside the stable combustion spray head 7 to form an upper right radial combustible gas mixture, and when the gas mixture passes through the front end of the stable combustion spray head 7, a part of the gas mixture flows to the upper right axial direction of the front end of the stable combustion spray head 7 to form upper right axial flame; one part forms upper right backflow at the front end of the stable combustion spray head 7 to form upper right backflow stable flame.
A lower radial gas jet hole 73 for providing outer lower radial gas; after the fuel gas is mixed with the combustion-supporting air outside the stable combustion injector head 7, a lower radial combustible gas mixture is formed, and when the gas mixture passes through the front end of the stable combustion injector head 7, a part of the gas mixture flows to the lower axial direction of the front end of the stable combustion injector head 7 to form lower axial flame; one part forms lower backflow at the front end of the stable combustion spray head 7 to form lower backflow flame.
The inner side jet holes are three, specifically, an upper inner radial gas jet hole 74, a right inner radial gas jet hole 75 and a left inner radial gas jet hole 76 which are uniformly distributed on the inner side surface of the annular gas channel to form central flame.
The upper inner radial gas spray holes 74 are used for providing upper inner radial gas, the gas is mixed with combustion-supporting air at the inner side of the stable combustion spray head 7 to form an inner radial combustible gas mixture, and the gas mixture passes through the front end of the stable combustion spray head 7 to form upper inner central flame;
the right inner radial gas spray hole 75 is used for providing right inner radial gas, the gas is mixed with combustion-supporting air at the inner side of the stable combustion spray head 7 to form a right inner radial combustible gas mixture, and the gas mixture passes through the front end of the stable combustion spray head 7 to form right inner central flame;
a left inner radial gas jet hole 76 for supplying left inner radial gas; after the fuel gas is mixed with combustion-supporting air at the inner side of the stable combustion injector head 7, a left inner radial combustible gas mixture is formed, and the gas mixture passes through the front end of the stable combustion injector head 7 to form left inner central flame;
as shown in fig. 2-3, four gas branch pipes 11 are radially and uniformly distributed at the front end of the main gas pipe 1, and the four radially and uniformly distributed gas branch pipes 11 can ensure that the whole annular branch gas supply seat 6 is uniformly filled with gas.
The utility model discloses a work flow as follows:
as shown in fig. 1-6, the ignition gas is ejected through the ignition gas pipe 4, meets the high-voltage arc released by the ignition needle 5, and ignites the ignition gas to form an ignition torch; after the ignition torch is confirmed to be formed, the main gas pipe 1 starts to release main gas, the main gas uniformly fills a gas supply loop consisting of the annular branch gas supply seat 6 and an annular gas channel at the rear end of the injector head through four gas branch pipes 11 which are uniformly distributed in the radial direction, and then passes through gas spray holes on the outer side of the central stable combustion injector head 7, an upper left radial gas spray hole 71, an upper right radial gas spray hole 72 and a lower radial gas spray hole 73; the inner radial gas spray hole 74, the right inner radial gas spray hole 75 and the left inner radial gas spray hole 76 on the gas spray hole on the inner side of the stable combustion spray head 7 are sprayed out; the sprayed gas is uniformly mixed with the outer side of the injector head and the central combustion-supporting air to form a combustible gas mixture, and a stable central stable combustion flame is formed after the combustible gas mixture meets an ignition torch.
In summary, the present invention is only a preferred embodiment, and is not intended to limit the scope of the present invention, and all equivalent changes and modifications of the shapes, structures, features and spirit described in the claims of the present invention should be included in the scope of the present invention.
Claims (5)
1. A stable combustion injection device for a gas center comprises a main gas pipe, an ignition gas pipe and an ignition needle, the ignition gas pipe is fixed on the side surface of the main combustion pipe through a fixing support I, the ignition needle is fixedly connected to the front section of the ignition gas pipe through a fixing support II, it is characterized by also comprising an annular branch gas supply seat and a stable combustion injector head, wherein at least two gas branch pipes are radially and uniformly distributed at the front end of the main gas pipe, the front ends of the gas branch pipes extend into the annular branch gas supply seats, the rear ends of the stable combustion injector heads are provided with annular gas channels, the annular gas channel is hermetically assembled with the annular branch gas supply seat to form a complete gas supply loop, the outer side surface of the stable combustion injector head is provided with a plurality of outer side injection holes, and the inner side surface of the stable combustion injector head is provided with at least one inner side injection hole.
2. The stable combustion injection device for the gas center according to claim 1, wherein four gas branch pipes are radially and uniformly distributed at the front end of the main gas pipe.
3. The stable combustion injection device for the gas center according to claim 1, wherein the outer gas jet holes are composed of an upper left radial gas jet hole, an upper right radial gas jet hole and a lower radial gas jet hole, and are uniformly distributed on the outer side surface of the annular gas channel to form outer ring flames.
4. The stable combustion injection device for the gas center according to claim 3, wherein the upper left radial gas injection hole, the upper right radial gas injection hole and the lower radial gas injection hole are all six, and the six holes are all designed in a group of two.
5. The stable combustion injection device for the gas center according to claim 1, wherein the number of the inner side injection holes is three, specifically, the upper inner radial gas injection hole, the right inner radial gas injection hole, and the left inner radial gas injection hole are uniformly distributed on the inner side surface of the annular gas channel to form the central flame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921906189.5U CN210979841U (en) | 2019-11-04 | 2019-11-04 | Stable combustion injection device for gas center |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921906189.5U CN210979841U (en) | 2019-11-04 | 2019-11-04 | Stable combustion injection device for gas center |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210979841U true CN210979841U (en) | 2020-07-10 |
Family
ID=71438176
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921906189.5U Active CN210979841U (en) | 2019-11-04 | 2019-11-04 | Stable combustion injection device for gas center |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210979841U (en) |
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2019
- 2019-11-04 CN CN201921906189.5U patent/CN210979841U/en active Active
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