CN220567229U - Atmospheric air oxygen-enriched mixer for boiler - Google Patents
Atmospheric air oxygen-enriched mixer for boiler Download PDFInfo
- Publication number
- CN220567229U CN220567229U CN202321518159.3U CN202321518159U CN220567229U CN 220567229 U CN220567229 U CN 220567229U CN 202321518159 U CN202321518159 U CN 202321518159U CN 220567229 U CN220567229 U CN 220567229U
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- CN
- China
- Prior art keywords
- oxygen
- mixing
- pipeline
- air
- enriched
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- 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.)
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- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 title claims abstract description 88
- 239000001301 oxygen Substances 0.000 title claims abstract description 85
- 229910052760 oxygen Inorganic materials 0.000 title claims abstract description 85
- 230000000694 effects Effects 0.000 abstract description 10
- 239000007789 gas Substances 0.000 abstract description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 24
- 239000003345 natural gas Substances 0.000 description 12
- 238000002485 combustion reaction Methods 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 3
- 239000000446 fuel Substances 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000003245 coal Substances 0.000 description 1
- 239000000571 coke Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
Abstract
The utility model provides an atmospheric air oxygen-enriched mixer for a boiler, which comprises a mixing pipeline, wherein one end of the mixing pipeline is provided with an air inlet, the other end of the mixing pipeline is connected with an axial flow fan, and an air filter is arranged at the air inlet of the mixing pipeline. The oxygen delivery pipe is sent into mixing pipeline with oxygen, makes oxygen and air mix under axial fan's drive, and the venthole that the slope set up can make oxygen form the whirl in mixing pipeline to improve the mixing effect, the gas after the primary mixing can carry out the secondary mixing through axial fan, further improves the mixing effect. The device is especially suitable for small boilers and has the advantages of compact structure, high reliability, good mixing property and the like.
Description
Technical Field
The utility model relates to a mixer, in particular to an atmospheric air oxygen-enriched mixer for a boiler, belonging to the technical field of pipeline facility design and manufacture.
Background
The natural gas boiler has wide application in industrial and civil fields, and the natural gas boiler adopts natural gas as fuel, so that the clean and environment-friendly combustion target can be realized. Because natural gas is more expensive than pulverized coal and coke, the natural gas is difficult to bear by partial small and medium enterprises, and especially in high-altitude areas, the incomplete combustion of a natural gas boiler can be caused by thin air. In recent years, the introduction of the oxygen-enriched combustion technology greatly improves the combustion rate of a natural gas boiler, and compared with the traditional natural gas boiler combustion technology, the oxygen-enriched combustion technology has the following advantages: (1) reducing the volume of combustion air and the amount of smoke; (2) Natural gas consumption is reduced, fuel utilization rate is improved, and energy consumption is reduced; (3) improving the thermal efficiency of the boiler. The oxygen-enriched mixer is used as an oxygen supply mixing device of the natural gas steam boiler, and the mixing effect determines the production efficiency of the natural gas steam boiler. The existing oxygen-enriched mixer is mainly used for mixing by using fixed cyclone sheets, and channels among the cyclone sheets are large, so that the existing oxygen-enriched mixer is not suitable for a small-flow natural gas boiler. Meanwhile, after the small-flow oxygen flows into the cyclone sheet channel, cloud-shaped entering pipelines are easy to form, and the aim of uniformly mixing the oxygen and the air cannot be achieved. There is therefore a need for improvements in the art.
Disclosure of Invention
The utility model provides an atmospheric air oxygen-enriched mixer for a boiler, which aims to solve the problem that the existing oxygen-enriched mixer is only suitable for a large-sized boiler and cannot be used for a small-sized boiler.
The utility model is completed by the following technical scheme: the utility model provides a boiler is with ordinary pressure air oxygen boosting mixing ware, including one end establishes the air inlet, the mixing tube of axial fan is connected to the other end, mixing tube air inlet department is equipped with air cleaner, be equipped with the oxygen boosting mixing ware of its last a plurality of air outlets of setting up in the mixing tube, a plurality of ventholes slope are located on the oxygen boosting mixing ware, be equipped with the oxygen conveyer pipe that one end and oxygen boosting mixing ware are linked together, the other end is linked together with outside oxygen supply mechanism on the mixing tube, so that air gets into in the mixing tube from the air inlet, and oxygen is sent into the oxygen boosting mixing ware in the mixing tube through the oxygen conveyer pipe, make oxygen form the whirl in the mixing tube through the venthole that the slope set up, accomplish the primary mixing of air and oxygen, make oxygen and air take out after secondary mixing under axial fan's drive, thereby improve the mixing effect of air and oxygen.
The mixing pipeline is formed by connecting a cylindrical section and a conical section, wherein the cylindrical section is a cylindrical pipeline with two open ends, the conical section is a conical pipeline with one end provided with a large opening and the other end provided with a small opening, the large opening end of the conical pipeline is connected with one end of the cylindrical pipeline through a flange, the small opening end of the conical pipeline is connected with the input end of the axial flow fan, the other end of the cylindrical pipeline is connected with an air filter, so that air and oxygen enriched are mixed through the mixing pipeline, and the cylindrical section is connected with the small-diameter axial flow fan through the conical section.
The air filter comprises a cylindrical frame and a filter screen covered on the cylindrical frame, wherein the inner end of the air filter is connected with the mixing pipeline through a flange so as to filter impurities in the air through the air filter.
The oxygen-enriched mixer comprises a shell with a cavity arranged therein and a plurality of air outlet holes arranged on the outer wall of the shell, wherein the shell is positioned in a conical section of the mixing pipeline and is in a cylindrical shape with a sharp front end and a flat rear end, the air outlet holes are uniformly distributed on the side wall and the front end wall of the shell, the air outlet holes are inclined holes inclined along the radial direction, and oxygen can form rotational flow in the mixing pipeline through the air outlet holes arranged in an inclined manner, so that the mixing capability with air is improved.
The oxygen delivery pipe is connected with the oxygen-enriched mixer after being obliquely inserted through the side wall of the mixing pipe, the output end of the oxygen delivery pipe penetrates through the rear end of the oxygen-enriched mixer shell to enter the cavity, the input end of the oxygen delivery pipe is connected with an external oxygen supply mechanism, the end part of the output end of the oxygen delivery pipe positioned in the cavity of the oxygen-enriched mixer shell is opened, and a plurality of through holes are uniformly distributed on the pipe wall of the output end, so that the entered oxygen can be uniformly distributed in the cavity of the oxygen-enriched mixer shell, and the mixing effect is ensured.
The utility model has the following advantages and effects: by adopting the scheme, oxygen is sent into the mixing pipeline through the oxygen conveying pipe, the oxygen and the air are mixed under the driving of the axial flow fan, and the inclined air outlet holes can enable the oxygen to form rotational flow in the mixing pipeline, so that the mixing effect is improved, and the gas after primary mixing can be subjected to secondary mixing through the axial flow fan, so that the mixing effect is further improved. The device is especially suitable for small boilers and has the advantages of compact structure, high reliability, good mixing property and the like.
Drawings
FIG. 1 is a block diagram of the present utility model;
FIG. 2 is a transverse cross-sectional view of the oxygen-enriched blender of the present utility model;
FIG. 3 is a longitudinal cross-sectional view of the oxygen-enriched blender of the present utility model.
Detailed Description
The utility model is further described below with reference to the accompanying drawings.
The utility model provides a normal pressure air oxygen-enriched mixer for a boiler, which comprises a mixing pipeline 5, wherein one end of the mixing pipeline 5 is provided with an air inlet, the other end of the mixing pipeline is connected with an axial flow fan 8, an air filter 1 is arranged at the air inlet of the mixing pipeline 5, an oxygen-enriched mixer 7 with a plurality of air outlets 11 is arranged in the mixing pipeline 5, a plurality of air outlets 11 are obliquely arranged on the oxygen-enriched mixer 7, an oxygen conveying pipe 4, one end of which is communicated with the oxygen-enriched mixer 7, and the other end of which is communicated with an external oxygen supply mechanism, is arranged on the mixing pipeline 5, so that air enters the mixing pipeline 5 from the air inlet, oxygen is conveyed into the oxygen-enriched mixer 7 in the mixing pipeline 5 through the oxygen conveying pipe 4, the oxygen forms a rotational flow in the mixing pipeline 5 through the obliquely arranged air outlets 11, primary mixing of the air and the oxygen is completed, and the oxygen is secondarily mixed and then pumped away under the driving of the axial flow fan 8, and the mixing effect of the air and the oxygen is improved;
the mixing pipeline 5 is formed by connecting a cylindrical section 10 and a conical section 9, wherein the cylindrical section 10 is a cylindrical pipeline with openings at two ends, the conical section 9 is a conical pipeline with a large opening at one end and a small opening at the other end, the large opening end of the conical pipeline is connected with one end of the cylindrical pipeline through a flange, the small opening end of the conical pipeline is connected with the input end of the axial flow fan 8, the other end of the cylindrical pipeline is connected with the air filter 1, so that air and oxygen are mixed through the mixing pipeline 5, and the cylindrical section 10 and the small-diameter axial flow fan 8 are connected through the conical section 9;
the air filter 1 comprises a cylindrical frame 2 and a filter screen 3 covered on the cylindrical frame 2, wherein the inner end of the air filter 1 is connected with a mixing pipeline 5 through a flange so as to filter impurities in the air through the air filter 1;
the oxygen-enriched mixer 7 comprises a shell with a cavity therein and a plurality of air outlet holes 11 arranged on the outer wall of the shell, wherein the shell is positioned in a conical section 9 of the mixing pipeline 5 and is provided with a cylinder with a sharp front end and a flat rear end, the plurality of air outlet holes 11 are uniformly distributed on the side wall and the front end wall of the shell, and the plurality of air outlet holes 11 are inclined holes which incline along the radial direction, as shown in figure 3, so that the oxygen can form rotational flow in the mixing pipeline 5 through the inclined air outlet holes 11, and the mixing capability with air is improved;
the oxygen delivery pipe 4 is connected with the oxygen-enriched mixer 7 after being obliquely inserted through the side wall of the mixing pipe 5, the output end of the oxygen delivery pipe passes through the rear end of the shell of the oxygen-enriched mixer 7 to enter the cavity, the input end of the oxygen delivery pipe is connected with an external oxygen supply mechanism, the end part of the output end of the oxygen delivery pipe 4 positioned in the cavity of the shell of the oxygen-enriched mixer 7 is opened, and a plurality of through holes 6 are uniformly distributed on the wall of the output end, so that the entered oxygen can be uniformly distributed in the cavity of the shell of the oxygen-enriched mixer 7, and the mixing effect is ensured.
Claims (5)
1. The utility model provides a boiler is with ordinary pressure air oxygen boosting mixing ware, includes that one end establishes the air inlet, the mixing pipeline of axial fan is connected to the other end, and mixing pipeline air inlet department is equipped with air cleaner, and its characterized in that is equipped with the oxygen boosting mixing ware of its last a plurality of air outlet holes of setting on the mixing pipeline, and a plurality of air outlet holes slope are located on the oxygen boosting mixing ware, are equipped with the oxygen conveyer pipe that one end and oxygen boosting mixing ware are linked together, the other end is linked together with outside oxygen suppliment mechanism on the mixing pipeline.
2. The atmospheric air oxygen-enriched mixer for boilers according to claim 1, wherein the mixing pipeline is formed by connecting a cylindrical section and a conical section, wherein the cylindrical section is a cylindrical pipeline with two open ends, the conical section is a conical pipeline with a large opening at one end and a small opening at the other end, the large opening end of the conical pipeline is connected with one end of the cylindrical pipeline through a flange, the small opening end of the conical pipeline is connected with the input end of an axial flow fan, and the other end of the cylindrical pipeline is connected with an air filter.
3. The atmospheric air oxygen-enriched homogenizer for boilers as claimed in claim 1, wherein said air filter comprises a cylindrical frame and a filter screen covering the cylindrical frame, and the inner end of the air filter is connected to the mixing pipe by a flange.
4. The atmospheric air oxygen-enriched mixer for boilers as claimed in claim 1, wherein the oxygen-enriched mixer comprises a shell with a cavity therein and a plurality of air outlets arranged on the outer wall of the shell, the shell is positioned in a conical section of the mixing pipeline and is in a cylindrical shape with a sharp front end and a flat rear end, the plurality of air outlets are uniformly distributed on the side wall and the front end wall of the shell, and the plurality of air outlets are all inclined holes inclined along the radial direction.
5. The atmospheric air oxygen-enriched mixer for a boiler according to claim 1, wherein the end part of the output end of the oxygen delivery pipe is opened, and a plurality of through holes are uniformly distributed on the pipe wall of the output end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321518159.3U CN220567229U (en) | 2023-06-14 | 2023-06-14 | Atmospheric air oxygen-enriched mixer for boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321518159.3U CN220567229U (en) | 2023-06-14 | 2023-06-14 | Atmospheric air oxygen-enriched mixer for boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220567229U true CN220567229U (en) | 2024-03-08 |
Family
ID=90086930
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321518159.3U Active CN220567229U (en) | 2023-06-14 | 2023-06-14 | Atmospheric air oxygen-enriched mixer for boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220567229U (en) |
-
2023
- 2023-06-14 CN CN202321518159.3U patent/CN220567229U/en active Active
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