CN212618305U - Natural gas single heat storage burner - Google Patents
Natural gas single heat storage burner Download PDFInfo
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- CN212618305U CN212618305U CN202020772292.1U CN202020772292U CN212618305U CN 212618305 U CN212618305 U CN 212618305U CN 202020772292 U CN202020772292 U CN 202020772292U CN 212618305 U CN212618305 U CN 212618305U
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- natural gas
- heat storage
- heat
- inlet pipe
- burner
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/10—Reduction of greenhouse gas [GHG] emissions
- Y02P10/143—Reduction of greenhouse gas [GHG] emissions of methane [CH4]
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Abstract
The utility model provides a natural gas single heat storage burner, relating to the technical field of metallurgical equipment; the two ends of the heat storage box are respectively provided with a burner block and a gas collection box; heat insulation fibers and refractory masonry materials are arranged in the periphery of the heat storage box, a natural gas inlet pipe is arranged in the middle of the heat storage box in a penetrating mode, and the heat insulation fibers and the refractory masonry materials are covered on the natural gas inlet pipe; a plurality of heat storage cavities are arranged in the heat storage box, and heat accumulators are arranged in the heat storage cavities; the nozzle brick is provided with a nozzle; the burner block is provided with a plurality of natural air holes which are arranged in a ring shape; the natural gas hole is communicated with the natural gas inlet pipe and the nozzle; the burner block is provided with a plurality of air holes which are arranged in a ring shape and surround the periphery of the natural air hole; the air hole is communicated with the heat storage cavity and the nozzle; one end of the natural gas hole close to the nozzle is inclined to the side of the air hole, and one end of the air hole close to the nozzle is inclined to the side of the natural gas hole; the tail end of the natural gas inlet pipe extends to the gas collecting box and extends out of the gas collecting box; the gas collection box is provided with a gas collection box gas port. The utility model discloses both solved the mixing problem, realized the heat accumulation function again.
Description
Technical Field
The utility model relates to a metallurgical equipment technical field specifically is a natural gas list regenerative burner.
Background
The regenerative burners are arranged in a combustion system of the heating furnace, and each heating furnace needs to use dozens of regenerative burners. The regenerative burners are all in pairs, and one is burnt while the other is exhausted. During the process of discharging the flue gas, the heat of the flue gas is stored in the heat accumulator; during the combustion process, the heat of the heat accumulator preheats combustion air.
Regenerative combustion has been practiced for decades, and low calorific value gas can be used in a heating furnace, and energy can be saved. For high calorific value gas, it is more appropriate to use a single heat storage type (air heat storage) from the economical viewpoint. However, the single regenerative burner of natural gas is rarely used in the heating furnace, because the mixing problem is always a problem which is difficult to solve (the air coefficient of natural gas is generally 10-11), and the air is more and the natural gas is less. If the external mixing type is adopted, the mixing effect is poorer, energy conservation can not be realized, and the carbon deposit is easy to block the outlet of the gas combustion pipe.
The natural gas is used as fuel for combustion, the air coefficient is 10.45 when the calorific value is 8400kcal/m3, and the smoke coefficient is 11.46; therefore, the air quantity for burning the natural gas is equivalent to the smoke quantity, the best air single heat storage is adopted, the smoke waste heat can be completely utilized for air preheating, and the energy-saving effect is obvious. However, because the fuel-air ratio of the natural gas is 1: 10.45, design the regenerative burner according to the conventionality and hardly solve the mixing problem, meet the distance far away, can not realize dispersion mixing and circumference parcel intensive mixing, the combustion effect is very poor.
SUMMERY OF THE UTILITY MODEL
The utility model provides a natural gas list regenerative burner has solved the mixing problem that natural gas list regenerative burner exists among the prior art.
The technical scheme of the utility model is realized like this:
a natural gas single heat storage burner comprises a heat storage box, wherein both ends of the heat storage box are respectively provided with a burner block and a gas collection box;
heat insulation fibers and refractory masonry materials are arranged on the inner walls of the periphery of the heat storage box; a natural gas inlet pipe penetrates through the middle part of the heat storage box, and heat insulation fibers and refractory masonry materials cover the natural gas inlet pipe; a plurality of heat storage cavities are arranged between the heat storage box and the natural gas inlet pipe and surround the periphery of the natural gas inlet pipe; a heat accumulator is arranged in the heat accumulation cavity;
a nozzle is arranged in the middle of one end of the burner block, which is far away from the heat storage box; a plurality of natural air holes are formed in the burner block, and are arranged in a ring shape; the natural gas hole is communicated with the head end of the natural gas inlet pipe and the nozzle; a plurality of air holes are formed in the burner block and are arranged in an annular shape, and the plurality of air holes are surrounded on the periphery of the natural air holes; the air hole is communicated with the heat storage cavity and the nozzle; one end of the natural gas hole close to the nozzle is inclined to the side of the air hole, and one end of the air hole close to the nozzle is inclined to the side of the natural gas hole;
the tail end of the natural gas inlet pipe extends to the gas collecting box and extends out of the gas collecting box; and the gas collection box is provided with a gas collection box gas port.
Furthermore, a support refractory material is arranged in the refractory material below the natural gas inlet pipe.
Furthermore, a detachable grid is arranged in the gas collection box and abuts against the end part of the heat accumulator.
And further, zirconium-containing fiber sealing layers are arranged between the heat storage box and the burner block and between the natural gas inlet pipe and the burner block.
Furthermore, one end of the gas collection box, which is far away from the heat storage box, is provided with an overhauling blocking plate.
Furthermore, an asbestos sealing plate is arranged between the overhauling blocking plate and the gas collecting box.
Furthermore, the heat storage box and the natural gas inlet pipe are both made of heat-resistant steel.
Further, the heat accumulator is a corundum-mullite heat accumulator.
The utility model has the advantages that:
the utility model has simple structure and convenient use; a plurality of inclined natural air holes and air holes are arranged, so that air and natural gas can be mixed when being sprayed out, and the problem of mixing is solved; the heat accumulator stores the heat of the discharged flue gas and preheats the entering air. The utility model discloses both solved the mixing problem, realized the heat accumulation function again.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
Wherein:
1. a heat storage tank; 2. a burner block; 3. a gas collection tank; 4. a thermal insulating fiber; 5. building refractory materials; 6. anchoring nails; 7. a natural gas inlet pipe; 8. wrapping fibers; 9. supporting the refractory material; 10. a heat storage chamber; 11. a heat accumulator; 12. a spout; 13. natural pores; 14. an air hole; 15. a gas collection tank gas port; 16. a grid; 17. overhauling the plugging plate; 18. a zirconium-containing fiber sealing layer.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
As shown in fig. 1, the natural gas single heat storage burner in this embodiment includes a heat storage tank 1, where the heat storage tank 1 is made of heat-resistant steel plates by welding, and both ends of the heat storage tank 1 are respectively provided with a burner block 2 and a gas collection tank 3. In this embodiment, the cross sections of the heat storage tank 1, burner block 2, and gas collection tank 3 are all circular, that is, the overall shape of this embodiment is cylindrical.
The heat storage box 1 is provided with heat insulation fibers 4 and masonry refractory materials 5 on the inner wall around the heat storage box, and anchoring nails 6 are arranged inside the refractory materials 5 to improve strength.
A natural gas inlet pipe 7 penetrates through the middle of the heat storage box 1, and the natural gas inlet pipe 7 is a heat-resistant steel piece. The natural gas inlet pipe 7 is covered with heat insulation fibers 4 and masonry refractory materials 5. In this embodiment, 7 surfaces of natural gas intake pipe are equipped with wraps fibre 8, wrap fibre 8 below and support resistant material 9, support natural gas intake pipe 7. Be provided with a plurality of heat accumulation chambeies 10 between heat accumulation case and the natural gas pipe, a plurality of heat accumulation chambeies 10 encircle the periphery at natural gas intake pipe 7, set up along heat accumulation case 1's circumference promptly. The heat storage cavity 10 is provided with a heat storage body 11, in the embodiment, the heat storage body 11 is a corundum-mullite heat storage body 11, which is high temperature resistant, thermal shock resistant, large in specific surface area and large in heat storage capacity, can fully recover the sensible heat of the flue gas, and achieves the purposes of energy conservation and consumption reduction.
And a nozzle 12 is arranged in the middle of one end of the burner block 2, which is far away from the heat storage box 1. A plurality of natural air holes 13 are formed in the burner block 2, and the natural air holes 13 are arranged in a ring shape, namely, are arranged along the circumferential direction of the burner block 2. The natural gas hole 13 is communicated with the head end of the natural gas inlet pipe 7 and the nozzle 12. A plurality of air holes 14 are formed in the burner block 2, the air holes 14 are arranged in a ring shape, namely, the air holes are formed along the circumferential direction of the burner block 2, and the air holes 14 surround the periphery of the natural air holes 13. The air hole 14 communicates the heat accumulation cavity 10 with the nozzle 12. When the end of the natural gas hole 13 near the nozzle hole 12 is inclined toward the air hole 14 and the end of the air hole 14 near the nozzle hole 12 is inclined toward the natural gas hole 13, the natural gas jetted from the natural gas hole 13 and the air jetted from the air hole 14 are merged at the nozzle hole 12.
The tail end of the natural gas inlet pipe 7 extends to the gas collecting tank 3 and extends out of the gas collecting tank 3. And a gas collecting tank gas port 15 is arranged on the gas collecting tank 3.
In this embodiment, a detachable grid 16 is disposed in the gas collecting tank 3, and the grid 16 abuts against the end of the heat accumulator 11. The grid 16 can fix the heat storage body 11, prevent the heat storage body 11 from shifting in the use process, and does not influence the circulation of gas. The one end that the heat accumulation case 1 was kept away from to gas collection tank 3 is provided with overhauls closure plate 17, set up the asbestos closing plate between overhauls closure plate 17 and the gas collection tank 3. The heat accumulator 11 can be conveniently replaced by opening the maintenance blocking plate 17 and removing the grating 16.
In this embodiment, zirconium-containing fiber sealing layers 18 are respectively arranged between the heat storage tank 1 and the burner block 2 and between the natural gas inlet pipe 7 and the burner block 2, so that the sealing effect is ensured.
The working of the embodiment comprises a heat storage process and a combustion process:
a heat storage process: the natural gas inlet pipe 7 stops gas inlet, hot flue gas of the heating furnace enters the heat storage cavity 10 through the nozzle 12 and the air hole 14 of the burner block 2, the hot flue gas flows through the heat accumulator 11 and exchanges heat with the heat accumulator 11, and the heat accumulator 11 stores heat. The temperature of the flue gas flowing out of the heat accumulator 11 is about 150 ℃, and then the flue gas passes through the gas collection tank 3 and is discharged from a gas collection tank gas port 15.
And (3) a combustion process: opening a cut-off valve connected with a natural gas inlet pipe 7, and introducing natural gas into the natural gas inlet pipe 7; natural gas is ejected from the natural pores 13 of the burner block 2. Combustion-supporting air enters from the air port 15 of the air collecting tank, enters the heat storage cavity 10 through the air collecting tank 3 and exchanges heat with the heat accumulator 11, and is preheated to about 900-1000 ℃ by the heat accumulator 11 and then is sprayed out from the air hole 14 of the burner block 2 to intersect with natural gas, join and burn.
When the air collecting box is used, the air port 15 of the air collecting box can be respectively connected with a smoke exhauster and an air blower through a reversing valve. During the heat storage process, the reversing valve is converted into connection with a smoke exhaust fan, and low-temperature smoke after heat exchange is exhausted; when in the combustion process, the reversing valve is switched to be connected with the air blower, and combustion-supporting air is injected into the gas collecting box 3. The heat accumulator 11 performs the function of periodically absorbing/releasing heat.
The present embodiment is provided with a plurality of inclined natural gas holes 13 and air holes 14, so that the air and the natural gas can be mixed when being sprayed out, and the mixing problem is solved. The heat accumulator 11 stores heat of the discharged flue gas and preheats the entering air. The embodiment solves the problem of mixing and realizes the heat storage function.
The utility model discloses a single regenerative burner of natural gas sets up the gas export in the middle of the nozzle, sets up the air outlet after preheating around the gas export, has realized the air parcel gas, and combustion outlet and air outlet all adopt the crossing blowout of porous slope, structurally take certain angle of inclination, make gas and air stranded mix, and combustion outlet designs into partial slope and is favorable to reducing the emission, and such single regenerative burner of natural gas can guarantee that the length of flame can also be favorable to discharging.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. The natural gas single heat storage burner is characterized by comprising a heat storage box, wherein both ends of the heat storage box are respectively provided with a burner block and a gas collection box;
heat insulation fibers and refractory masonry materials are arranged on the inner walls of the periphery of the heat storage box; a natural gas inlet pipe penetrates through the middle part of the heat storage box, and heat insulation fibers and refractory masonry materials cover the natural gas inlet pipe; a plurality of heat storage cavities are arranged between the heat storage box and the natural gas inlet pipe and surround the periphery of the natural gas inlet pipe; a heat accumulator is arranged in the heat accumulation cavity;
a nozzle is arranged in the middle of one end of the burner block, which is far away from the heat storage box; a plurality of natural air holes are formed in the burner block, and are arranged in a ring shape; the natural gas hole is communicated with the head end of the natural gas inlet pipe and the nozzle; a plurality of air holes are formed in the burner block and are arranged in an annular shape, and the plurality of air holes are surrounded on the periphery of the natural air holes; the air hole is communicated with the heat storage cavity and the nozzle; one end of the natural gas hole close to the nozzle is inclined to the side of the air hole, and one end of the air hole close to the nozzle is inclined to the side of the natural gas hole;
the tail end of the natural gas inlet pipe extends to the gas collecting box and extends out of the gas collecting box; and the gas collection box is provided with a gas collection box air inlet.
2. The natural gas single regenerative burner of claim 1, wherein a support refractory is provided below the natural gas inlet pipe to satisfy the manufacturing process and transportation strength.
3. The natural gas single regenerative burner of claim 1, wherein a removable grid is provided in the header, the grid abutting against an end of the thermal mass.
4. The natural gas single heat storage burner of claim 1, wherein zirconium-containing fiber sealing layers are arranged between the heat storage tank and the burner block and between the natural gas inlet pipe and the burner block.
5. The natural gas single heat storage burner of claim 1, wherein an access panel is provided at an end of the gas collection tank remote from the heat storage tank.
6. The natural gas single regenerative burner of claim 5, wherein an asbestos sealing plate is disposed between the access panel and the header.
7. A natural gas single regenerative burner according to any one of claims 1 to 6, characterized in that the natural gas inlet pipes are all made of heat resistant steel.
8. A natural gas single regenerative burner according to any one of claims 1 to 6, wherein the regenerator is a corundum-mullite regenerator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020772292.1U CN212618305U (en) | 2020-05-11 | 2020-05-11 | Natural gas single heat storage burner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020772292.1U CN212618305U (en) | 2020-05-11 | 2020-05-11 | Natural gas single heat storage burner |
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| Publication Number | Publication Date |
|---|---|
| CN212618305U true CN212618305U (en) | 2021-02-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020772292.1U Expired - Fee Related CN212618305U (en) | 2020-05-11 | 2020-05-11 | Natural gas single heat storage burner |
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| CN (1) | CN212618305U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111520719A (en) * | 2020-05-11 | 2020-08-11 | 北京君合悦科技发展有限公司 | Natural gas single heat storage burner |
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2020
- 2020-05-11 CN CN202020772292.1U patent/CN212618305U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111520719A (en) * | 2020-05-11 | 2020-08-11 | 北京君合悦科技发展有限公司 | Natural gas single heat storage burner |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210226 |
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| CF01 | Termination of patent right due to non-payment of annual fee |