CN2308051Y - Hot-air furnace by burning oil and gas with smoke recycling mechanism - Google Patents
Hot-air furnace by burning oil and gas with smoke recycling mechanism Download PDFInfo
- Publication number
- CN2308051Y CN2308051Y CN 97241164 CN97241164U CN2308051Y CN 2308051 Y CN2308051 Y CN 2308051Y CN 97241164 CN97241164 CN 97241164 CN 97241164 U CN97241164 U CN 97241164U CN 2308051 Y CN2308051 Y CN 2308051Y
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Abstract
The utility model relates to an oil and gas hot-air furnace with fume recirculation. The utility model mainly solves the defects that the existing hot-air furnace has large energy consumption, short service life, etc. The utility model has the basic measurement that the front part of the furnace is additionally provided with a fume recirculation mechanism; heat insulation layers are respectively arranged on the exterior of the barrel body and in a furnace wall. The utility model has the advantages of small energy consumption, long service life, less exhaust gas exhausting objects, and low maintenance cost. The utility model is widely used for the industries of foodstuff, medicine, chemical engineering, construction material, etc.
Description
The utility model relates to hot-blast stove, particularly a kind of fuel-firing gas-firing flue gas recirculation hot-blast stove.
Current, be widely used in the hot-blast stove of industries such as grain, grease processing, be to be fuel with light, heavy oil, exhaust gas temperature higher (250 ℃), furnace wall rapid wear ring, power consumption is big, and the life-span is short, and exhaust emission is more, easily contaminated environment.
The purpose of this utility model is to overcome the deficiency of above-mentioned prior art, and a kind of fuel-firing gas-firing flue gas recirculation hot-blast stove that little, life-span is long, be beneficial to environmental protection that consumes energy is provided.
The purpose of this utility model is achieved in that it includes burner, furnace wall, cylindrical shell, exhanst gas outlet, support, and unique distinction is: set up a flue gas recirculation mechanism 7 in the stokehold.
Above-mentioned said cylindrical shell 2 is arranged on the outside.
A thermal insulation layer 5 has been set up in the centre of above-mentioned said furnace wall 4.
Advantage of the present utility model is simple in structure, realizes that easily it is less to consume energy, and has prolonged the service life of stove, has reduced exhaust emission, helps environmental protection, and can reduce the operating maintenance cost.
Below in conjunction with accompanying drawing the utility model is further described.
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is that the A of Fig. 1 is to view.
Structure shown in the drawings is exactly embodiment of the present utility model.Among the figure, 1 is burner; 2 is cylindrical shell; 3 is support; 4 for comprising the furnace wall of flame retardant coating and heat-insulation layer: 5 for being arranged on the thermal insulation layer in the middle of the furnace wall; 6 are the exhanst gas outlet adapter: 7 for being arranged on the flue gas recirculation mechanism of stokehold.During the utility model work, fuel produces high-temperature flue gas (about 1400 ℃) by burner combustion.High-temperature flue gas is linked to each other with the young machine of the stir-fry of external heat switching equipment such as oil processing industry by exhanst gas outlet adapter 6.The flue gas some of discharging by air-introduced machine through the chimney emptying; another part then is divided into two strands of jets by circulating fan through flue gas recirculation mechanism 7 and tangentially enters burner hearth; can play protection furnace wall flame retardant coating; reduce internal surface temperature in it; can realize the automatic control of hot-blast stove exit gas temperature again; satisfy different heat-exchange apparatus to the flue-gas temperature needs, realized the dual purpose of saving oil consumption and reducing emission simultaneously.Its amount of energy saving at least can be energy-conservation more than 7.5% according to the difference of the hot blast temperature of technological requirement.It is to the protection of furnace wall inner surface; main circle of contact flue gas jet by low temperature; form a kind of low-temperature flue gas chuck (film) at the furnace wall inner surface, avoided high-temperature flue gas to contact, often burn shortcomings such as ring and maintenance difficult thereby overcome old-fashioned warm air oil furnace with the direct of furnace wall.The metal shell of cylindrical shell 2 and the support 3 common supporting devices that constitute stove.This external housing not only material is easy to solve, and built-in because of heat-insulation layer etc., external packing is attractive in appearance.The lines flow smoothly, changes the black big coarse image of hot-blast stove in the past.Adopt welding between cylindrical shell 2 and the support 3.Furnace wall 4 adopts wear-resistant temperature-resistant material (as mullite pouring material), has characteristics such as easy construction, life-span length.The two is used, and makes stove hull-skin temperature＜60 ℃, and radiation loss is little.In addition, the cigarette air channel interface at this furnace tube two ends all adopts the flange type of attachment, is easy to maintenance.Burner adopts full-automatic oil burner, is convenient to Load Regulation, complete machine automatization level height.This stove is a fuel with oil, gas mainly.Be widely used in industries such as grain, medicine, chemical industry, building materials.
Claims (3)
1, a kind of fuel-firing gas-firing flue gas recirculation hot-blast stove includes burner, furnace wall, cylindrical shell, exhanst gas outlet, support, it is characterized in that: increased a flue gas recirculation mechanism (7) in the stokehold.
2, fuel-firing gas-firing flue gas recirculation hot-blast stove according to claim 1, it is characterized in that: above-mentioned said cylindrical shell (2) is arranged on the outside.
3, fuel-firing gas-firing flue gas recirculation hot-blast stove according to claim 1, it is characterized in that: a thermal insulation layer (5) has been set up in the centre of above-mentioned said furnace wall (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97241164 CN2308051Y (en) | 1997-08-13 | 1997-08-13 | Hot-air furnace by burning oil and gas with smoke recycling mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97241164 CN2308051Y (en) | 1997-08-13 | 1997-08-13 | Hot-air furnace by burning oil and gas with smoke recycling mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2308051Y true CN2308051Y (en) | 1999-02-17 |
Family
ID=33950707
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97241164 Expired - Fee Related CN2308051Y (en) | 1997-08-13 | 1997-08-13 | Hot-air furnace by burning oil and gas with smoke recycling mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2308051Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100344772C (en) * | 2004-07-28 | 2007-10-24 | 山东省冶金设计院 | Top burning type hot blast stove with thermal insulation layer in precombustion chamber |
| CN101858692A (en) * | 2010-06-29 | 2010-10-13 | 哈尔滨工业大学 | Anti-clogging coal-fired industrial furnace |
| CN111692757A (en) * | 2020-06-09 | 2020-09-22 | 珠海格力电器股份有限公司 | Air duct assembly, heat exchange structure and gas water heater |
-
1997
- 1997-08-13 CN CN 97241164 patent/CN2308051Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100344772C (en) * | 2004-07-28 | 2007-10-24 | 山东省冶金设计院 | Top burning type hot blast stove with thermal insulation layer in precombustion chamber |
| CN101858692A (en) * | 2010-06-29 | 2010-10-13 | 哈尔滨工业大学 | Anti-clogging coal-fired industrial furnace |
| CN111692757A (en) * | 2020-06-09 | 2020-09-22 | 珠海格力电器股份有限公司 | Air duct assembly, heat exchange structure and gas water heater |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |