CN112032712A - A energy-concerving and environment-protective spray gun of natural gas for industry - Google Patents
A energy-concerving and environment-protective spray gun of natural gas for industry Download PDFInfo
- Publication number
- CN112032712A CN112032712A CN201910475746.0A CN201910475746A CN112032712A CN 112032712 A CN112032712 A CN 112032712A CN 201910475746 A CN201910475746 A CN 201910475746A CN 112032712 A CN112032712 A CN 112032712A
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- China
- Prior art keywords
- natural gas
- air
- spray gun
- environment
- swirler
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- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 title claims abstract description 190
- 239000003345 natural gas Substances 0.000 title claims abstract description 100
- 239000007921 spray Substances 0.000 title claims abstract description 34
- 229910010271 silicon carbide Inorganic materials 0.000 claims abstract description 23
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 claims abstract description 16
- 229910001220 stainless steel Inorganic materials 0.000 claims description 14
- 239000010935 stainless steel Substances 0.000 claims description 14
- 239000010425 asbestos Substances 0.000 claims description 4
- 229910052895 riebeckite Inorganic materials 0.000 claims description 4
- 238000002485 combustion reaction Methods 0.000 abstract description 22
- 239000007789 gas Substances 0.000 abstract description 8
- 230000000694 effects Effects 0.000 abstract description 4
- 239000000779 smoke Substances 0.000 abstract description 4
- 239000002699 waste material Substances 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000010438 heat treatment Methods 0.000 description 4
- 230000007547 defect Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000003763 carbonization Methods 0.000 description 2
- 238000004939 coking Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000003044 adaptive effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
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
- F23D14/48—Nozzles
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Nozzles (AREA)
Abstract
The invention discloses an industrial natural gas energy-saving environment-friendly spray gun which comprises a gun seat, a natural gas pipe and a natural gas interface, wherein the natural gas interface is connected with the natural gas pipe; the scheme has the beneficial technical effects that: because the natural gas and the air are premixed for two times in the scheme, the natural gas is fully premixed, the combustion heat value is high, the energy is saved, and due to complete combustion, the dragging fire and the smoke gas are not generated, and the waste emission is less; in addition, because the natural gas is fully combusted in the combustion chamber, the flame rigidity through the outlet of the silicon carbide sleeve is strong, the jet distance is long, and the phenomenon that the natural gas is carbonized and coked before being unburnt due to insufficient combustion of a conventional combustor is avoided.
Description
Technical Field
The invention relates to the technical field of industrial natural gas combustion equipment, in particular to an industrial natural gas energy-saving environment-friendly spray gun.
Background
Referring to the attached drawing 1, which is a schematic diagram of the overall structure of an existing industrial natural gas spray gun, the existing natural gas spray gun mainly comprises a gun base 1 ', a natural gas interface 2', a fire observation mirror 3 ', a natural gas pipe 4', an air distribution plate 5 ', a natural gas nozzle 6', a stainless steel sleeve 7 'and a silicon carbide sleeve 8', and the existing industrial natural gas spray gun mainly has the following defects in practical use: 1. the spray gun has the defects that the natural gas and the air are mixed unevenly in the combustion process, so that the natural gas cannot be completely combusted in the combustion process, the efficiency is low, partial natural gas is wasted, and the use cost of a factory is high; 2. the natural gas is not completely combusted in the spray gun, ignition and large amount of smoke are generated under the influence of airflow in a heating space, and the temperature is not accurately controlled; 3. the premixing structure is too simple, so that the adaptive range of the burner is small, and the flameout phenomenon is easy to occur when the natural gas quantity is small; 4. because the design of spray gun structure is unreasonable, lead to the natural gas not to burn completely, and then lead to the flame temperature not high, outside carborundum sleeve temperature is low, and heat transfer efficiency is not high.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide the industrial natural gas energy-saving and environment-friendly spray gun which has a reasonable structural design, can effectively and fully mix natural gas and air, ensures the combustion effect and saves energy.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
an industrial natural gas energy-saving environment-friendly spray gun comprises a gun seat, a natural gas pipe and a natural gas interface, wherein the natural gas interface is connected with the natural gas pipe, the environment-friendly spray gun further comprises an air pipe, an ignition needle, an air distribution disc, a first swirler, a second swirler, a stainless steel sleeve and a silicon carbide sleeve, the air pipe is sleeved on the periphery of the natural gas pipe, the air distribution disc is installed at one end of an air inlet of the air pipe and sleeved on the outer end face of the natural gas pipe, the first swirler is installed at one end of an air outlet of the air pipe, the silicon carbide sleeve is installed on the gun seat, the stainless steel sleeve is arranged on the inner wall of the silicon carbide sleeve, the second swirler is sleeved on the outer end face of the first swirler and positioned in an inner cavity of the stainless steel sleeve, the natural gas flowing out of the natural gas pipe is sequentially and respectively mixed with the air flowing out of the first cyclone and the air flowing out of the second cyclone.
Further, the ignition needle is horizontally and fixedly installed in the inner cavity of the gun holder, wherein the ignition end of the ignition needle extends into the inner cavity of the second cyclone.
Further, an asbestos pad is arranged between the silicon carbide sleeve and the gun seat.
Further, the air distribution plate comprises a disc-shaped air distribution plate body, a mounting hole formed in the center of the air distribution plate body, and a plurality of air inlet holes formed in the end face of the air distribution plate body at intervals, wherein the air distribution plate is sleeved on the outer end face of the natural gas pipe through the mounting hole, and the air inlet holes are communicated with the inner cavity of the air pipe.
Furthermore, the environment-friendly spray gun also comprises a fire observation mirror arranged on the end face of the gun seat.
Compared with the prior art, the scheme has the beneficial technical effects that:
1. because the natural gas and the air are premixed for two times in the scheme, the natural gas is fully premixed, the combustion heat value is high, the energy is saved, and because the natural gas is completely combusted, the dragging fire and the smoke gas are not generated, and the waste discharge is less;
2. because it fully burns in the combustion chamber for the natural gas, therefore the flame rigidity through carborundum sleeve export is strong, and jet distance is far away, avoids conventional combustor burning insufficient and makes the natural gas just carbonization coking's phenomenon take place before not burning, and it can also adjust jet distance or collocation carborundum sleeve that length is different freely adjusts the heating region through the export of collocation variation in size that energy-concerving and environment-protective spray gun in this scheme in addition.
Drawings
FIG. 1 is a schematic view of a conventional industrial natural gas lance.
Fig. 2 is a schematic structural view of the natural gas energy-saving and environment-friendly lance in the embodiment.
Fig. 3 is a schematic structural view of the air distribution plate in this embodiment.
Fig. 4 is a schematic structural view of the first swirler in the present embodiment.
Fig. 5 is a schematic structural view of a second swirler in the present embodiment.
Fig. 6 is a schematic view of the working principle of the natural gas energy-saving environment-friendly spray gun in the embodiment.
The reference numerals in the figures illustrate:
1 '-gun seat, 2' -natural gas interface, 3 '-fire observation mirror, 4' -natural gas pipe, 5 '-air distribution plate, 6' -natural gas spray head, 7 '-stainless steel sleeve, 8' -silicon carbide sleeve, 1-gun seat, 2-natural gas interface, 3-fire observation mirror, 4-ignition needle, 5-natural gas pipe, 6-air distribution plate, 61-air distribution plate body, 62-installation hole, 63-air inlet hole, 7-air pipe, 8-first swirler, 9-second swirler, 10-stainless steel sleeve, 11-silicon carbide sleeve and 12-asbestos pad.
Detailed Description
The invention is described in further detail below with reference to the drawings and the detailed description.
This scheme is to it all has natural gas and air to mix inhomogeneous in the combustion process to current industry natural gas spray gun, and then leads to having the combustion process in natural gas can not the complete combustion, and is inefficient, has wasted partial natural gas, the problem that the use cost of mill is high, and then the natural gas energy-concerving and environment-protective spray gun for industry that proposes, its structural design of this natural gas energy-concerving and environment-protective spray gun is reasonable, can effectually mix abundant with natural gas and air, guarantee the combustion effect, the energy saving.
Referring to fig. 2, the natural gas energy-saving environment-friendly spray gun for industry in the embodiment includes a gun base 1, a natural gas pipe 5, a natural gas connector 2, an air pipe 7, an ignition needle 4, an air distribution plate 6, a first cyclone 8, a second cyclone 9, a stainless steel sleeve 10, and a silicon carbide sleeve 11, wherein the natural gas connector 2 is connected with the natural gas pipe 5. The air pipe 7 is sleeved on the periphery of the natural air pipe 5, the air distribution plate 6 is installed at one end of an air inlet of the air pipe 7 and sleeved on the outer end face of the natural air pipe 5, as shown in the attached drawing 3, the air distribution plate in the embodiment comprises a disc-shaped air distribution plate body 61, an installation hole 62 arranged at the central position of the air distribution plate body 61 and a plurality of air inlet holes 63 arranged on the end face of the air distribution plate body 61 at intervals, wherein the air distribution plate 6 is sleeved on the outer end face of the natural air pipe 5 through the installation hole 62, and the air inlet holes 63 are communicated with the inner cavity of the air pipe 7. The first swirler 8 is installed on one end of the air outlet of the air pipe 7, the silicon carbide sleeve 11 is installed on the gun base 1, and the asbestos pad 12 is arranged between the silicon carbide sleeve 11 and the gun base 1. A stainless steel sleeve 10 is provided on the inner wall of the silicon carbide sleeve 11, and the second swirler 9 is sleeved on the outer end face of the first swirler 8 and is located in the inner cavity of the stainless steel sleeve 10, that is, the second swirler 9 is located at the periphery of the outlet end of the first swirler 8, and it can be understood that the outer diameter size of the second swirler 9 is larger than that of the first swirler 8 (as can be seen in combination with fig. 4 and 5). When the natural gas premixing device works, external input natural gas flows into the first cyclone 8 through one end of the gas outlet of the natural gas pipe 5, meanwhile, external air enters the inner cavity of the air pipe 7 through the air distribution plate 6 and flows into the first cyclone 8 to be premixed with the natural gas flowing out of the natural gas pipe 5 for the first time; the mixed gas formed by the natural gas and the air after the first premixing is continuously conveyed forwards along the combustion chamber and flows to the second cyclone 9, meanwhile, the external air flows into the second cyclone 9 through a gap between the stainless steel sleeve 10 and the air pipe 7 and is mixed with the gas (formed by mixing the air and the natural gas) after the first premixing flowing into the second cyclone 9 again, the natural gas after the two times of mixing with the air is ignited by the ignition needle 4 and then combusted, the ignition needle 4 in the embodiment is horizontally and fixedly arranged on the gun base 1, and the ignition end of the ignition needle extends into the second cyclone 9 so as to be ignited by the natural gas after the second mixing; it can be understood that since the natural gas is mixed with the air twice, the natural gas is mixed more sufficiently, the combustion is more complete, and the thermal efficiency is higher.
In order to observe the combustion state of the natural gas conveniently in time, the fire observation mirror 3 is arranged on the bottom end face of the gun seat 1.
Referring to fig. 2 and 6 in combination, in operation, external natural gas enters the natural gas pipe 5 through the natural gas port 2 and flows to the first cyclone 8, and is primarily premixed with air flowing into the first cyclone 8 through the air pipe. The premixed natural gas is premixed with air from the stainless steel sleeve 10 to the second swirler 9 for the second time in the combustion chamber, the premixing is thorough, and the flame temperature is high. Because natural gas is combusted more fully, the phenomenon of fire dragging of the conventional spray gun due to the influence of air flow in a heating space is avoided, and the temperature control of the conventional spray gun is more accurate. Mixing a proper amount of air in the first swirler 8 and the second swirler 9 after minimum natural gas (namely, natural gas coming from a gap of the butterfly valve when the gas butterfly valve is almost in a closed state) so as to ensure stable combustion; and along with the gas butterfly valve is opened gradually to the biggest in-process, the natural gas burning flame in the spray gun then corresponds moves from inside to outside, changes from small to big, and natural gas and air mix is abundant in the whole in-process, and the burning is also more stable. Along with the gradual increase of the natural gas supply amount (the opening of a gas butterfly valve is increased), the burning flame is also diffused from the burning center to the periphery, namely, the flame is uniformly burnt along the inner wall of the silicon carbide, so that the silicon carbide sleeve 11 has a good heat transfer function.
In conclusion, the natural gas in the natural gas energy-saving environment-friendly spray gun in the scheme is premixed with air for two times, the natural gas is fully premixed, the combustion heat value is high, energy is saved, and due to complete combustion, flame dragging and smoke are not generated, and the waste emission is less; because it fully burns in the combustion chamber for the natural gas, consequently the flame rigidity through carborundum sleeve export is strong, and jet distance is far away, avoids conventional combustor burning insufficient and makes the phenomenon of the carbonization coking of natural gas just before unburnt to take place, and it can also adjust jet distance or collocation carborundum sleeve different length freely adjusts the heating region through the export of collocation variation in size that energy-concerving and environment-protective spray gun in this scheme in addition.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is intended to include such modifications and variations.
Claims (5)
1. The utility model provides an energy-concerving and environment-protective spray gun of natural gas for industry, the environment-protective spray gun is including stock, natural gas pipe and natural gas interface, wherein the natural gas interface with natural gas pipe links to each other its characterized in that: the environment-friendly spray gun further comprises an air pipe, an ignition needle, an air distribution disc, a first swirler, a second swirler, a stainless steel sleeve and a silicon carbide sleeve, wherein the air pipe is sleeved on the periphery of the natural air pipe, the air distribution disc is installed at one end of an air inlet of the air pipe and sleeved on the outer end face of the natural air pipe, the first swirler is installed at one end of an air outlet of the air pipe, the silicon carbide sleeve is installed on the gun base, the stainless steel sleeve is arranged on the inner wall of the silicon carbide sleeve, the second swirler is sleeved on the outer end face of the first swirler and located in an inner cavity of the stainless steel sleeve, and natural gas flowing out of the natural air pipe is sequentially mixed with air flowing out of the first swirler and the second swirler respectively.
2. The natural gas energy-saving and environment-friendly spray gun for industry as claimed in claim 1, characterized in that: the ignition needle is horizontally and fixedly installed in the inner cavity of the gun holder, wherein the ignition end of the ignition needle extends into the inner cavity of the second cyclone.
3. The natural gas energy-saving and environment-friendly spray gun for industry as claimed in claim 1 or 2, characterized in that: and an asbestos pad is also arranged between the silicon carbide sleeve and the gun seat.
4. The natural gas energy-saving and environment-friendly spray gun for industry as claimed in claim 1, characterized in that: the air distribution plate comprises a disc-shaped air distribution plate body, a mounting hole arranged in the center of the air distribution plate body and a plurality of air inlet holes arranged on the end face of the air distribution plate body at intervals, wherein the air distribution plate is sleeved on the outer end face of the natural gas pipe through the mounting hole, and the air inlet holes are communicated with the inner cavity of the air pipe.
5. The natural gas energy-saving and environment-friendly spray gun for industry as claimed in claim 1, characterized in that: the environment-friendly spray gun also comprises a fire observation mirror arranged on the end face of the gun seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910475746.0A CN112032712A (en) | 2019-06-03 | 2019-06-03 | A energy-concerving and environment-protective spray gun of natural gas for industry |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910475746.0A CN112032712A (en) | 2019-06-03 | 2019-06-03 | A energy-concerving and environment-protective spray gun of natural gas for industry |
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| Publication Number | Publication Date |
|---|---|
| CN112032712A true CN112032712A (en) | 2020-12-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910475746.0A Pending CN112032712A (en) | 2019-06-03 | 2019-06-03 | A energy-concerving and environment-protective spray gun of natural gas for industry |
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| CN (1) | CN112032712A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112797406A (en) * | 2021-02-25 | 2021-05-14 | 佛山市金之鑫环保科技有限公司 | High-speed energy-saving environment-friendly gas burner and combustion method |
| CN113566566A (en) * | 2021-07-08 | 2021-10-29 | 佛山市东鹏陶瓷有限公司 | Energy-saving quick-burning roller kiln |
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|---|---|---|---|---|
| US5266025A (en) * | 1992-05-27 | 1993-11-30 | Praxair Technology, Inc. | Composite lance |
| CN103062773A (en) * | 2012-12-25 | 2013-04-24 | 杭州全合科技有限公司 | Dual-purpose burner applicable to high-temperature gas and heavy oil |
| CN103131808A (en) * | 2011-11-23 | 2013-06-05 | 张昭贵 | Spray gun burner and loading and unloading method thereof |
| CN104764006A (en) * | 2015-04-03 | 2015-07-08 | 南京创能电力科技开发有限公司 | Swirl less-gas pulverized coal burner |
| CN106705039A (en) * | 2017-03-06 | 2017-05-24 | 中国华能集团清洁能源技术研究院有限公司 | Low-load stable combustion rotational flow type burner |
| CN206582840U (en) * | 2017-01-12 | 2017-10-24 | 丁国友 | Kiln energy-conservation spray gun |
| CN208365531U (en) * | 2018-06-02 | 2019-01-11 | 北京神科博斯热能工程技术有限公司 | A kind of natural gas high combustion rate burner |
| CN109373316A (en) * | 2018-09-10 | 2019-02-22 | 常州大学 | A kind of heating natural gas hot water boiler low NO |
| CN109442403A (en) * | 2018-11-21 | 2019-03-08 | 中国科学院工程热物理研究所 | Bispin burner and its method for controlling combustion |
| CN210291872U (en) * | 2019-06-03 | 2020-04-10 | 卓秀金 | A energy-concerving and environment-protective spray gun of natural gas for industry |
-
2019
- 2019-06-03 CN CN201910475746.0A patent/CN112032712A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5266025A (en) * | 1992-05-27 | 1993-11-30 | Praxair Technology, Inc. | Composite lance |
| CN103131808A (en) * | 2011-11-23 | 2013-06-05 | 张昭贵 | Spray gun burner and loading and unloading method thereof |
| CN103062773A (en) * | 2012-12-25 | 2013-04-24 | 杭州全合科技有限公司 | Dual-purpose burner applicable to high-temperature gas and heavy oil |
| CN104764006A (en) * | 2015-04-03 | 2015-07-08 | 南京创能电力科技开发有限公司 | Swirl less-gas pulverized coal burner |
| CN206582840U (en) * | 2017-01-12 | 2017-10-24 | 丁国友 | Kiln energy-conservation spray gun |
| CN106705039A (en) * | 2017-03-06 | 2017-05-24 | 中国华能集团清洁能源技术研究院有限公司 | Low-load stable combustion rotational flow type burner |
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| CN109373316A (en) * | 2018-09-10 | 2019-02-22 | 常州大学 | A kind of heating natural gas hot water boiler low NO |
| CN109442403A (en) * | 2018-11-21 | 2019-03-08 | 中国科学院工程热物理研究所 | Bispin burner and its method for controlling combustion |
| CN210291872U (en) * | 2019-06-03 | 2020-04-10 | 卓秀金 | A energy-concerving and environment-protective spray gun of natural gas for industry |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112797406A (en) * | 2021-02-25 | 2021-05-14 | 佛山市金之鑫环保科技有限公司 | High-speed energy-saving environment-friendly gas burner and combustion method |
| CN113566566A (en) * | 2021-07-08 | 2021-10-29 | 佛山市东鹏陶瓷有限公司 | Energy-saving quick-burning roller kiln |
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