CN2364419Y - Air and coal gas heat-storage and preheating integrated device - Google Patents
Air and coal gas heat-storage and preheating integrated device Download PDFInfo
- Publication number
- CN2364419Y CN2364419Y CN 99227387 CN99227387U CN2364419Y CN 2364419 Y CN2364419 Y CN 2364419Y CN 99227387 CN99227387 CN 99227387 CN 99227387 U CN99227387 U CN 99227387U CN 2364419 Y CN2364419 Y CN 2364419Y
- Authority
- CN
- China
- Prior art keywords
- air
- regenerator
- heat
- furnace wall
- gas
- Prior art date
- 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.)
- Expired - Lifetime
Links
Abstract
The utility model discloses an air and coal gas heat-storage and preheating integrated device, comprising a furnace wall (1), a burner (2) which is oppositely arranged on the furnace wall (1), heat-storage chambers, and an air or coal gas pipeline system which is communicated with the heat-storage chamber, wherein, a coal gas heat-storage chamber is oppositely arranged on the outside of furnace wall (1), and is communicated with the burner (2); an air heat-storage chamber is arranged in the furnace wall (1), and is communicated with the burner (2). A pair of heat-storage chambers can be used by a plurality of burners (2). Heat-storage bodies in flaky zigzag structures are filled in the heat-storage chambers. At least one set of perpendicular four-way valves (7) is connected in the air or coal gas pipeline system in series. The utility model has the advantages of simple structure, safety, and easy maintenance, and can be used for an industrial furnace which uses flame to transfer heat.
Description
The utility model relates to a kind of industrial furnace that conducts heat with flame, waste-heat recovery device that adopts the two preheatings of heat accumulating type technology realization space gas of being used for.
In industrial furnace, adopt the heat accumulating type technology high temperature (only a little less than burner hearth exhanst gas outlet temperature) about empty, gas double pre-heating to 1000 ℃ can have been made full use of the waste heat in the flue gas, thereby can be energy-conservation significantly.Simultaneously, the sky of high preheat temperature, gas-fired have the high theoretical ignition temperature, make low-heat value gas can satisfy the needs of high temperature heater for rolling steel, thereby have expanded the scope of application of low-heat value gas greatly.Therefore, the application prospect of heat accumulating type heat recovery technology is very wide.In recent years, this heat recovery technology has had very great development, as waste heat entirely from the recovery type industrial furnace (patent No.: 92238591.2), this device is opposed air of while and gas regenerator in furnace wall, and on air supply system, establish at least one group of two-position five-way valve, switch air feed and air inducing direction by two-position five-way valve, make furnace wall both sides regenerator alternately be in accumulation of heat and preheat mode, utilize the heat storage in sky, the gas regenerator that air and coal gas are carried out two preheatings.But this device makes the furnace wall structure complexity because empty, gas regenerator all places in the furnace wall, the maintenance difficulty.In addition, unavoidable some crackles that exist easily cause sky, coal gas to mix in furnace wall, thereby have certain potential safety hazard behind the formed refractory.
The purpose of this utility model provides the two regenerative heat exchange integrated apparatus of a kind of improved space gas, makes this apparatus structure simple, safe and reliable, is easy to maintenance.
The purpose of this utility model is to realize like this, this device comprises furnace wall, opposed burner, regenerator and the air that communicates with regenerator or gaspipe line system on furnace wall, its structural feature is: the gas regenerator is opposite to outside the furnace wall, and the coal gas of high temperature that comes out from the gas regenerator communicates with burner outside furnace wall; Air regenerator is opposite in the furnace wall, and the high temperature air that comes out from air regenerator communicates with burner in furnace wall.
An air regenerator and a gas regenerator of this device can be shared for a plurality of burners.What fill in regenerator is the heat storage of sheet zigzag structure, and the heat transfer area of its unit heat storage can reach 267m
2/ m
3, medium circulation drag losses is little, is difficult for dust stratification, and the material of heat storage is high-alumina clay fire resistant materials and cast iron.At least one group of perpendicular type cross valve of serial connection makes two regenerator alternately be in accumulation of heat and preheat mode in air or gaspipe line system, realizes the two preheatings of space gas.
After adopting such structure,, make furnace wall structure simple,, also can in time find and handle even leakage loss appears in coal gas system simultaneously because the gas regenerator is placed outside the furnace wall, thus safe and reliable, be easy to maintenance; Because a regenerator can be with a plurality of burners, has simplified the pipeline of hold over system greatly; In addition, heat storage has adopted the sheet zigzag structure, can improve the heat transfer area of unit heat storage greatly, thereby can reduce the volume of regenerator; The perpendicular type cross valve that adopts in the pipe-line system, simple in structure, sealingly secure is reliable.
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.
Fig. 1 is the utility model integrated apparatus and air supply system figure thereof.
As shown in the figure, this integrated apparatus comprises oven body part, air and gaspipe line components of system as directed.Oven body part comprises furnace wall 1, the paired burner 2 that on furnace wall, is oppositely arranged, and gas regenerator 3 is opposite to outside the furnace wall 1, and the coal gas of high temperature that comes out from gas regenerator 3 communicates through coal gas of high temperature passage 5 and burner 2 outside furnace wall 1; Air regenerator 4 is opposite in the furnace wall 1, and the high temperature air that comes out from air regenerator 4 communicates through high temperature air passage 6 and burner 2 in furnace wall 1.What fill in the regenerator is the heat storage of sheet zigzag structure, the upper strata is the high-alumina clay fire resistant materials, lower floor is a cast iron, this heat storage is bigger by 10%～30% than the heat transfer area of the heat storage of the sphere, corrugated plate dst, honeycomb fashion and the flute profile that adopt at present, thereby the volume of regenerator dwindles greatly, and this serrated profile is little and be difficult for dust stratification to medium circulation drag losses simultaneously.Air regenerator 4 and gas regenerator 3 are connected air, gaspipe line system respectively, have one group of perpendicular type cross valve 7 in pipe-line system at least.Present embodiment provides the perpendicular type cross valve 7 of two groups of parallel connections, is respectively applied for air and coal gas.
When this integrated apparatus is started working, gas regenerator 3A, air regenerator 4A cuts down 7 by the perpendicular type four-way and communicates with combustion fan 8 with gas main 11 respectively and join with burner 2A, and at this moment coal gas under the normal temperature and air are preheating to about 1000 ℃ by gas regenerator 3A and air regenerator 4A and (are lower than high-temperature flue-gas 150-200 ℃ high temperature).The high temperature sky that is preheated, coal gas process coal gas of high temperature passage 5A and high temperature air passage 6A enter burner 2A and burn.This moment, high-temperature flue gas entered gas regenerator 3B and air regenerator 4B by burner 2B, gas passage 5B and air duct 6B, thereby gas regenerator 3B and air regenerator 4B from 150 ℃ of temperature that have been heated near high-temperature flue gas of low temperature, flue gas drops to 150-200 ℃ and introduces chimneys 10 by induced-draft fan 9 and discharge.
After two to four minutes, spool in the perpendicular type cross valve 7 in integrated apparatus half-twist under the driving of cylinder, at this moment, exhaust opening, air inlet and two mutual switchings of burners reconfigure, gas regenerator 3B, air regenerator 4B link to each other with combustion fan 8 with gas main 11 respectively and join with burner 2B, burner 2A, gas regenerator 3A, air regenerator 4A then link to each other with induced-draft fan 9, burner 2B burning, burner 2A smoke evacuation.After 2-4 minute, the spool another mistake of the perpendicular type reversal valve 7 in the integrated apparatus was changeed 90 °.Integrated apparatus is being worked again and again, to realize the two accumulation of heat preheatings of space gas.
Like this, by the two accumulation of heat preheating integrated apparatus of this space gas, the space gas under the normal temperature has been preheating to about 1000 ℃ high temperature simultaneously, thereby has reclaimed the sensible heat in the high-temperature flue gas in the industrial furnace.The thermal efficiency and the purpose of energy saving that improve stove have been reached.
Claims (4)
1. the integrated apparatus of the two accumulation of heat preheatings of a space gas, comprise furnace wall (1), go up opposed burner (2), regenerator and air that communicates with regenerator or gaspipe line system at furnace wall (1), it is characterized in that: gas regenerator (3) are opposite to outside the furnace wall (1), the coal gas of high temperature that comes out from gas regenerator (3) outside furnace wall (1) and burner (2) communicate; Air regenerator (4) is opposite in the furnace wall (1), and the high temperature air that comes out from air regenerator (4) communicates with burner (2) in furnace wall (1).
2. integrated apparatus according to claim 1 is characterized in that: described each air regenerator (4) and gas regenerator (3) can be shared for a plurality of burners.
3. according to claim 1,2 described integrated apparatus, it is characterized in that: what fill in the regenerator (3,4) is the heat storage of sheet zigzag structure.
4. integrated apparatus according to claim 1 is characterized in that: be connected in series one group of perpendicular type cross valve (7) in air or gaspipe line system at least.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99227387 CN2364419Y (en) | 1999-02-26 | 1999-02-26 | Air and coal gas heat-storage and preheating integrated device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99227387 CN2364419Y (en) | 1999-02-26 | 1999-02-26 | Air and coal gas heat-storage and preheating integrated device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2364419Y true CN2364419Y (en) | 2000-02-16 |
Family
ID=34016906
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99227387 Expired - Lifetime CN2364419Y (en) | 1999-02-26 | 1999-02-26 | Air and coal gas heat-storage and preheating integrated device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2364419Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102243025A (en) * | 2011-06-20 | 2011-11-16 | 北京中冶设备研究设计总院有限公司 | Process and device for recycling flue gas afterheat of electric furnace |
-
1999
- 1999-02-26 CN CN 99227387 patent/CN2364419Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102243025A (en) * | 2011-06-20 | 2011-11-16 | 北京中冶设备研究设计总院有限公司 | Process and device for recycling flue gas afterheat of electric furnace |
| CN102243025B (en) * | 2011-06-20 | 2013-07-10 | 北京中冶设备研究设计总院有限公司 | Process and device for recycling flue gas afterheat of electric furnace |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2015043296A1 (en) | Progressive-switching regenerative combustion apparatus and control method therefor | |
| CN102207286B (en) | Low-heating-value gas burner | |
| CN102878817A (en) | Continuous combusting regenerative industrial furnace | |
| CN102818257A (en) | Heat accumulating type direct-fired boiler using biomass fuel | |
| CN203489670U (en) | Regenerative type continuous flame tube heating furnace | |
| CN2835923Y (en) | Energy-saving environment-friendly gas-fired crucible furnace | |
| CN103615905B (en) | Continuous heat accumulation type industrial furnace afterheat utilizing system | |
| CN201184696Y (en) | Tube type heating stove | |
| CN202793046U (en) | Continuous burning heat accumulating type industrial furnace | |
| CN1624159B (en) | Hot-blast stove heating from dual-end of air pipe of heat storage device set | |
| CN2847195Y (en) | High temperature rotary kiln | |
| CN2364419Y (en) | Air and coal gas heat-storage and preheating integrated device | |
| CN202630392U (en) | High temperature radiation indirect air heating furnace | |
| CN1301335C (en) | High-air temp hot-blast stove for blast furnace | |
| CN101251300A (en) | Pipe type heating furnace | |
| CN2660456Y (en) | Heat storage exchanging appts. | |
| CN201041352Y (en) | Building block type heat storage and combustion total radiation boiler | |
| CN2139256Y (en) | Waste heat full-self-recovery type industrial furnace | |
| CN201522189U (en) | Rotary kiln combustion chamber heating device | |
| CN202747782U (en) | Filling ball heat accumulating type energy-saving aluminum melting furnace | |
| CN101251299A (en) | Windspout segregated combustion heat-storing tubular oven | |
| CN201149427Y (en) | Heat-accumulation heat-exchange type heating furnace | |
| CN216869244U (en) | Device for reducing inlet temperature of high-temperature heat exchanger matched with combustion furnace | |
| CN215175186U (en) | High-temperature flue gas heat exchange system of oxidation-reduction reaction furnace | |
| CN202630393U (en) | Multi-stage convection indirect blast stove |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |