CN203307386U - Air-gas dual regenerative heating furnace - Google Patents
Air-gas dual regenerative heating furnace Download PDFInfo
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- CN203307386U CN203307386U CN2013202442604U CN201320244260U CN203307386U CN 203307386 U CN203307386 U CN 203307386U CN 2013202442604 U CN2013202442604 U CN 2013202442604U CN 201320244260 U CN201320244260 U CN 201320244260U CN 203307386 U CN203307386 U CN 203307386U
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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
- Y02P10/25—Process efficiency
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Abstract
The utility model relates to an air-gas dual regenerative heating furnace. The air-gas dual regenerative heating furnace comprises a heating furnace body, 2-20 combustible gas heat accumulators, 2-20 air heat accumulators, combustible gas heat exchangers and air heat exchangers, wherein the combustible gas heat accumulators and the air heat accumulators are respectively provided with heat accumulation combustion chambers; the combustible gas heat accumulators are divided into two groups, each group of combustible gas heat accumulators are connected with a combustible gas pipeline and an exhaust emission system respectively through a three-way valve, the other sides of each group of combustible gas heat accumulators are connected with the combustible gas heat accumulation combustion chambers, and the combustible gas heat accumulation combustion chambers are connected with combustible gas inlets of flat flame burners through cone valves; the air heat accumulators are divided into two groups, each group of air heat accumulators are connected with an air pipeline and the exhaust emission system through a three-way valve, the other sides of each group of air heat accumulators are connected with the air heat accumulation combustion chambers, and the air heat accumulation combustion chambers are connected with air inlets of the flat flame burners through the cone valves. The air-gas dual regenerative heating furnace provided by the utility model has the advantages that through the alternate heat accumulation and preheated air or combustible gas of the two groups of combustible gas heat accumulators and air heat accumulators, the smooth heating operation of the heating furnace is realized, the heating effect and operational stability are optimized, and the quality of a heated product is improved.
Description
Technical field
The utility model belongs to steel rolling and metal heat treatment equipment technical field, relates to a kind of process furnace, is specifically related to a kind of air gas double heat storage type process furnace.
Background technology
In the steel rolling production process, need various steel billets, steel are heated to given temperature and keep the regular hour.Heating steel billet is the important step on steel rolling production-line, is undertaking the task that the qualified steel billet of heating quality is provided for rolling process.Utilize the low calorie fuels heating, not only environment purification but also save energy, but the low calorie fuels temperature of combustion is low, can not meet the heating steel billet demand.Utilize the method for air, gas double accumulation of heat, make to burn again after air and gas preheating, can meet the requirement of heating steel billet.
The recuperative heater of prior art has two insoluble defects: the one, and because the furnace pressure that frequent commutation causes is unstable, the unstable operation to process furnace of furnace pressure has negative impact, burns with anger or inhales cold wind etc. as burner, also can damage equipment when serious.The 2nd, combustion atmosphere ceaselessly changes, influential to the billet surface resultant, and the iron scale of formation is difficult to, except clean, affect the quality of hot-rolled product.
Summary of the invention
For overcoming the deficiencies in the prior art, the utility model provides a kind of air gas double heat storage type process furnace, replaces accumulation of heat/heat release by two groups of air thermophore and two groups of regenerator gas devices, realizes the heating steel billet quiet run, improves the quality of hot-rolled product.
The utility model air gas double heat storage type process furnace, comprise process furnace, and the process furnace top is provided with flat flame burner, at the bottom of process furnace, is provided with the steel billet support, and a side of process furnace is provided with exhanst gas outlet.Two regenerative heaters are provided with 2～20 regenerator gas devices, 2～20 air thermophore, gas heat-exchanger and air heat exchangers.The regenerator gas device is provided with the regenerator gas combustion chamber, and the air thermophore is provided with air heat-accumulation combustion chamber, and regenerator gas combustion chamber and air heat-accumulation combustion chamber are provided with combustion chamber burner.The regenerator gas device is divided into two groups, every group of regenerator gas device is connected with exhaust emission system with gas line respectively by T-valve, the opposite side of regenerator gas device is connected with the regenerator gas combustion chamber, and the regenerator gas combustion chamber is connected to the fuel gas inlet of flat flame burner by miter valve.The air thermophore is divided into two groups, every group of air thermophore is connected with exhaust emission system with airline by T-valve, the opposite side of air thermophore is connected with air heat-accumulation combustion chamber, and air heat-accumulation combustion chamber is connected to the gas inlet of flat flame burner by miter valve.The exhanst gas outlet of process furnace is connected to exhaust emission system by air heat exchanger and gas heat-exchanger.Airline is connected to the gas inlet of combustion chamber burner by air heat exchanger, gas line is connected to the fuel gas inlet of combustion chamber burner by gas heat-exchanger.
The double heat storage type process furnace is provided with combustion gas collection chamber and air collection chamber, and the regenerator gas combustion chamber is connected to the fuel gas inlet of flat flame burner by the combustion gas collection chamber.Air heat-accumulation combustion chamber is connected to the gas inlet of flat flame burner by the air collection chamber.The fuel gas inlet of combustion chamber burner and gas inlet pipeline are provided with valve.The steel billet support is the water-cooled body support.Heat storage in regenerator gas device and air thermophore is spherule, honeycomb or grid body, and the material of described heat storage is pottery, refractory materials or ferrous materials.Steel billet in process furnace has multiple cloth form, can be arranged to individual layer, also can be arranged to bilayer or multilayer.
The utility model air gas double heat storage type process furnace is by alternately accumulation of heat and preheated air or the combustion gas of two groups of regenerator gas devices and air thermophore, realize the steady heating operation of process furnace, optimize heats and operational stability, improved the quality of heating products.By air thermophore and regenerator gas device, improved the temperature of fuel gas and combustion air, be conducive to improve temperature of combustion, take full advantage of low calorie fuels.Combustion gas collection chamber and air collection chamber are set, and the air after preheating and combustion gas enter the flat flame burner burning through collection chamber, are conducive to stablize the pressure of combustion gas and air, improve the continuity of burning and heating.By air heat exchanger and gas heat-exchanger, the flue gas after utilization heating steel billet, for air and the gas-preheating of combustion chamber burner, is fully used heat energy, is conducive to reduce being heated and produced as this, improves thermo-efficiency.
The accompanying drawing explanation
Fig. 1 is the utility model air gas double heat storage type process furnace schematic flow sheet;
Fig. 2 is the regenerator gas schematic flow sheet;
Fig. 3 is air accumulation of heat schematic flow sheet.
Wherein:
1-T-valve, 2-regenerator gas device, 3-valve, 4-gas heat-exchanger, 5-air heat exchanger, 6-combustion chamber burner, 7-flat flame burner, 8-steel billet, 9-miter valve, 10-regenerator gas combustion chamber, 11-air thermophore, 12-air heat-accumulation combustion chamber, 13-exhanst gas outlet, 14-process furnace, 15-combustion gas collection chamber, 16-steel billet support, 17-air collection chamber, 1a-No. 1 T-valve, 1b-No. 2 T-valve, 1c-No. 3 T-valve, 1d-No. 4 T-valve, 1e-No. 5 T-valve, 1f-No. 6 T-valve.
Embodiment
Below in conjunction with accompanying drawing, the utility model is elaborated.
The utility model air gas double heat storage type process furnace, as shown in Figure 1, Figure 2, Figure 3 shows, comprise 14,6 regenerator gas devices of process furnace 2,6 air thermophore 11, gas heat-exchanger 4, combustion gas collection chamber 15, air collection chamber and air heat exchangers 5.The process furnace top is provided with flat flame burner 7, at the bottom of process furnace, is provided with steel billet support 16, and a side of process furnace is provided with exhanst gas outlet 13.The steel billet support is the water-cooled body support, and steel billet 8 is placed on the steel billet support.The regenerator gas device is provided with regenerator gas combustion chamber 10, and the air thermophore is provided with air heat-accumulation combustion chamber 12, and regenerator gas combustion chamber and air heat-accumulation combustion chamber are provided with combustion chamber burner 6.The regenerator gas device is divided into two groups, gas header pipe is connected with two groups of gas lines respectively by No. 2 T-valve 1b, one group of regenerator gas device is connected with exhaust emission system with gas line respectively by No. 1 T-valve 1a, and another group regenerator gas device is connected with exhaust emission system with gas line respectively by No. 3 T-valve 1c.The opposite side of regenerator gas device is connected with regenerator gas combustion chamber 10, and the regenerator gas combustion chamber is connected to combustion gas collection chamber 15 by miter valve 9, and combustion gas collection chamber 15 is connected to the fuel gas inlet of flat flame burner 7.The air thermophore is divided into two groups, air main is connected with two groups of air thermophore respectively by No. 5 T-valve 1e, one group of air thermophore is connected with exhaust emission system with airline by No. 4 T-valve 1d, and another group air thermophore is connected with exhaust emission system with airline by No. 6 T-valve 1f.The opposite side of air thermophore is connected with air heat-accumulation combustion chamber 12, and air heat-accumulation combustion chamber is connected to air collection chamber 17 by miter valve 9, and the air collection chamber is connected to the gas inlet of flat flame burner 7.The exhanst gas outlet 13 of process furnace is connected to exhaust emission system by air heat exchanger 5 and gas heat-exchanger 4.Airline is connected to the gas inlet of combustion chamber burner 6 by air heat exchanger, gas line is connected to the fuel gas inlet of combustion chamber burner by gas heat-exchanger, and the pipeline of fuel gas inlet and gas inlet is provided with valve 3.Heat storage in regenerator gas device 2 and air thermophore 11 is spherule, and the material of heat storage is pottery.
The operation scheme of the utility model air gas double heat storage type process furnace is, the heat storage in one group of regenerator gas combustion chamber 10 combustion heating regenerator gas device, and another group regenerator gas device is emitted the heat preheated fuel gas.During the accumulation of heat of regenerator gas device, combustion gas and air enter combustion chamber burner 6, and in the regenerator gas combustion chambers burn, the flue gas that burning produces to the blowdown system discharge, is the heat storage accumulation of heat in the regenerator gas device through regenerator gas device 2, T-valve 1.During preheated fuel gas, combustion gas is through T-valve 1, regenerator gas device 2, regenerator gas combustion chamber 10, miter valve 9 and combustion gas collection chamber 15 to flat flame burner 7 burnings, and the heat storage in the regenerator gas device is emitted the heat preheated fuel gas.The hocket accumulation of heat and emit the heat preheated fuel gas of two groups of regenerator gas devices, realize commutation by the action of T-valve and the switching of valve 3, and the timed interval of commutation is set according to industrial requirements.The operation scheme of air thermophore is identical with the operation scheme of regenerator gas device.After preheating, combustion gas and air are at flat flame burner 7 burnings, the flue gas heating steel billet of generation.Useless flue gas after the heating steel billet is through exhanst gas outlet 13, air heat exchanger 5 and air and the combustion gas heat exchange of gas heat-exchanger 4 for entering combustion chamber burner.
Claims (5)
1. air gas double heat storage type process furnace, comprise process furnace (14), the process furnace top is provided with flat flame burner (7), at the bottom of process furnace, be provided with steel billet support (16), one side of process furnace is provided with exhanst gas outlet (13), it is characterized in that: described double heat storage type process furnace is provided with 2～20 regenerator gas devices (2), 2～20 air thermophore (11), gas heat-exchanger (4) and air heat exchanger (5); Described regenerator gas device is provided with regenerator gas combustion chamber (10), and the air thermophore is provided with air heat-accumulation combustion chamber (12), and regenerator gas combustion chamber and air heat-accumulation combustion chamber are provided with combustion chamber burner (6); Described regenerator gas device is divided into two groups, every group of regenerator gas device is connected with exhaust emission system with gas line respectively by T-valve (1), the opposite side of regenerator gas device is connected with regenerator gas combustion chamber (10), and described regenerator gas combustion chamber is connected to the fuel gas inlet of flat flame burner (7) by miter valve (9); Described air thermophore is divided into two groups, every group of air thermophore is connected with exhaust emission system with airline by T-valve, the opposite side of air thermophore is connected with air heat-accumulation combustion chamber, and described air heat-accumulation combustion chamber is connected to the gas inlet of flat flame burner (7) by miter valve (9); The exhanst gas outlet of process furnace (13) is connected to exhaust emission system by air heat exchanger (5) and gas heat-exchanger (4); Airline is connected to the gas inlet of combustion chamber burner (6) by air heat exchanger, gas line is connected to the fuel gas inlet of combustion chamber burner by gas heat-exchanger.
2. air gas double heat storage type process furnace according to claim 1, it is characterized in that: described double heat storage type process furnace is provided with combustion gas collection chamber (15) and air collection chamber, and described regenerator gas combustion chamber (10) is connected to the fuel gas inlet of flat flame burner (7) by the combustion gas collection chamber; Described air heat-accumulation combustion chamber (12) is connected to the gas inlet of flat flame burner by the air collection chamber.
3. air gas double heat storage type process furnace according to claim 1, it is characterized in that: described steel billet support (16) is the water-cooled body support.
4. air gas double heat storage type process furnace according to claim 1, it is characterized in that: the fuel gas inlet of described combustion chamber burner (6) and gas inlet pipeline are provided with valve (3).
5. air gas double heat storage type process furnace according to claim 1, it is characterized in that: the heat storage in described regenerator gas device (2) and air thermophore (11) is spherule, honeycomb or grid body, and the material of described heat storage is pottery, refractory materials or ferrous materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202442604U CN203307386U (en) | 2013-05-08 | 2013-05-08 | Air-gas dual regenerative heating furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202442604U CN203307386U (en) | 2013-05-08 | 2013-05-08 | Air-gas dual regenerative heating furnace |
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| Publication Number | Publication Date |
|---|---|
| CN203307386U true CN203307386U (en) | 2013-11-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013202442604U Withdrawn - After Issue CN203307386U (en) | 2013-05-08 | 2013-05-08 | Air-gas dual regenerative heating furnace |
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| CN (1) | CN203307386U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103225018A (en) * | 2013-05-08 | 2013-07-31 | 石家庄新华能源环保科技股份有限公司 | Air and gas two-heat-accumulation heating furnace |
| CN104748568A (en) * | 2015-04-03 | 2015-07-01 | 首钢总公司 | Heating method and system based on steel rolling heating furnace |
-
2013
- 2013-05-08 CN CN2013202442604U patent/CN203307386U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103225018A (en) * | 2013-05-08 | 2013-07-31 | 石家庄新华能源环保科技股份有限公司 | Air and gas two-heat-accumulation heating furnace |
| CN104748568A (en) * | 2015-04-03 | 2015-07-01 | 首钢总公司 | Heating method and system based on steel rolling heating furnace |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20131127 Effective date of abandoning: 20140806 |
|
| RGAV | Abandon patent right to avoid regrant |