CN2573978Y - Adjustable air supply device for flue heat exchange of heating furnace - Google Patents
Adjustable air supply device for flue heat exchange of heating furnace Download PDFInfo
- Publication number
- CN2573978Y CN2573978Y CN 02281705 CN02281705U CN2573978Y CN 2573978 Y CN2573978 Y CN 2573978Y CN 02281705 CN02281705 CN 02281705 CN 02281705 U CN02281705 U CN 02281705U CN 2573978 Y CN2573978 Y CN 2573978Y
- Authority
- CN
- China
- Prior art keywords
- air
- heating furnace
- flue
- heat exchange
- air preheater
- 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
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Abstract
The utility model belongs to a combustion apparatus, a fluid heater with a heat source in supplying air and a heat-exchanging device, particularly an adjustable air supply device for flue heat exchange of a heating furnace. The heat exchange segment of the flue of a heating furnace is sheathed with an air preheater, and a draught pipe of the exit of the air preheater is connected with the entrance of a draught fan and is connected with a burner blown in the heating furnace through an exit pipe of the draught fan. An air adjusting pipe is additionally arranged at the entrance of the draught fan. The utility model is characterized in that the air preheater forms parts of short circuit by using the mediation for the degree of opening of the air adjusting entrance pipe, and the constancy of the flue-gas temperature of the air preheater is maintained, and the dew point corrosion is avoided. The utility model has the advantages of simple project structure, convenient operation and little investment.
Description
Technical field
The utility model belongs to combustion apparatus, and air-supply has fluid heater, the heat-exchange device of thermal source, the adjustable air supply device of particularly a kind of heating furnace flue heat exchange.
Background technology
Mostly the air preheater of existing industrial heating furnace is and will directly sends into the burner of heating furnace with air-introduced machine through the natural wind of air preheater heating, to reach the purpose that improves thermal efficiency of heating furnace and give the burner oxygen supply.Because the variation of environment temperature is very big to the design influence of air preheater, all can produce dew point corrosion because the flue gas that burning produces drops to uniform temperature.If the air preheater environment temperature is by the design in winter, though solved because environment temperature is low, the dew point corrosion problem that air preheater produces, to summer since environment temperature raise, must cause the rising of heating furnace exhaust gas temperature, the reduction of thermal efficiency of heating furnace.If instead environment temperature is by the design in summer, must cause the cold end corrosion of air preheater winter.In order to address this problem, adopt two kinds of methods usually: the firstth, use resistant material; The secondth, the air of heat is delivered to the inlet of air preheater with certain power, to improve the inlet temperature of air.But these two kinds of methods are all very undesirable, all can bring investment roll up and operate inconvenience.
Summary of the invention
The purpose of this utility model is intended to solve the deficiencies in the prior art, designs the adjustable air supply device of a kind of heating furnace flue heat exchange.Promptly utilize the waste heat of heating furnace self smoke evacuation, through the air quantity of air preheater heating, can be adjustable at random to the heating furnace air feed.Its technical scheme is: with the heat exchanging segment of the flue of heating furnace and air preheater intussusception mutually, the induced duct of the outlet of air preheater connects the air-introduced machine inlet, connects the burner that is blown into heating furnace through the outlet of air-introduced machine.Set up the accent airduct in the porch of air-introduced machine.The adjustable air supply device of the flue heat exchange of design like this is because (air-introduced machine porch) installs an accent airduct additional on the air inducing pipeline of air preheater.When the exit gas temperature of air preheater is lower than the dew-point temperature of flue gas, transfer airduct can suitably open (get final product manual adjustment and also can control this louver automatically) according to flue-gas temperature, the suction that utilizes air-introduced machine to form makes it louver and suitably enters air, be actually the air preheater amount of air drawn and suitably reduced, with this regulate keep exhaust gas temperature can be constant at it more than dew-point temperature.The adjustable air supply device of heating furnace flue of the present utility model heat exchange, be characterized in: utilize the conciliation of transferring wind inlet tube aperture, make air preheater form partial short circuit, kept flue-gas temperature constant of air preheater, the generation that must exempt from its dew point corrosion phenomenon.Its project organization is simple, easy to operate, and small investment.
Description of drawings
Figure of description is the structural representation of the adjustable air supply device of heating furnace flue of the present utility model heat exchange.
Embodiment
The embodiment that sets forth the adjustable air supply device of heating furnace flue of the present utility model heat exchange in conjunction with the accompanying drawings is: with the heat exchanging segment (3) of the flue (2) of heating furnace (1) and air preheater (4) intussusception mutually, the outlet of air preheater (4) is communicated with induced duct (5), connects the burner (7) that enters heating furnace (1) through air-introduced machine (6), in the porch of air-introduced machine (6) accent airduct (8) is arranged.The heat exchanging segment (3) of flue wherein (2) and air preheat (4) are to intersect or cigarette, gas heat-exchanger rig that inside and outside intussusception constitutes.Establish in accent airduct (8) wherein has and transfer wind plate washer (9).
Claims (3)
1, the adjustable air supply device of heating furnace flue heat exchange, it is characterized in that the heat exchanging segment (3) of the flue (2) of heating furnace (1) and air preheater (4) intussusception mutually, the outlet of air preheater (4) is communicated with induced duct (5), connects the burner (7) that enters heating furnace (1) through air-introduced machine (6), at the inlet tube place of air-introduced machine (6) accent airduct (8) is arranged.
2, the adjustable air supply device of heating furnace flue as claimed in claim 1 heat exchange, the heat exchanging segment (3) that it is characterized in that flue (2) wherein and air preheat (4) are to intersect or cigarette, gas heat-exchanger rig that inside and outside intussusception constitutes.
3, the louver of heating furnace flue as claimed in claim 1 or 2 heat exchange is characterized in that wherein accent airduct (8) is established in having to transfer wind plate washer (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02281705 CN2573978Y (en) | 2002-10-22 | 2002-10-22 | Adjustable air supply device for flue heat exchange of heating furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02281705 CN2573978Y (en) | 2002-10-22 | 2002-10-22 | Adjustable air supply device for flue heat exchange of heating furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2573978Y true CN2573978Y (en) | 2003-09-17 |
Family
ID=33743999
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02281705 Expired - Lifetime CN2573978Y (en) | 2002-10-22 | 2002-10-22 | Adjustable air supply device for flue heat exchange of heating furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2573978Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102072664A (en) * | 2011-02-22 | 2011-05-25 | 刘智泉 | Efficient thermal treatment furnace for recovering and utilizing flue gas waste heat |
| CN103900389A (en) * | 2014-04-14 | 2014-07-02 | 山东理工大学 | Intelligent-control efficient kiln waste heat utilization system |
| CN103940249A (en) * | 2014-04-14 | 2014-07-23 | 山东理工大学 | Multiuser-oriented utomatic measuring and controlling energy-saving kiln waste heat utilization system |
| CN103954143A (en) * | 2014-05-05 | 2014-07-30 | 山东省能源与环境研究院 | Bootstrap system for rotary cement kiln |
-
2002
- 2002-10-22 CN CN 02281705 patent/CN2573978Y/en not_active Expired - Lifetime
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102072664A (en) * | 2011-02-22 | 2011-05-25 | 刘智泉 | Efficient thermal treatment furnace for recovering and utilizing flue gas waste heat |
| CN104713379A (en) * | 2014-04-14 | 2015-06-17 | 山东理工大学 | Furnace waste heat system capable of intelligently adjusting opening of gas duct regulating valve based on exhaust gas temperature |
| CN104697347A (en) * | 2014-04-14 | 2015-06-10 | 山东理工大学 | Kiln residual heat system capable of automatically controlling auxiliary heating equipment to be started |
| CN104697347B (en) * | 2014-04-14 | 2016-03-16 | 山东理工大学 | The using residual heat from kiln furnace system that automatic control ancillary heating equipment starts |
| CN104596311B (en) * | 2014-04-14 | 2016-03-16 | 山东理工大学 | The kiln waste heat utilization system of exhaust gas volumn Intelligent adjustment |
| CN103940249B (en) * | 2014-04-14 | 2015-03-25 | 山东理工大学 | Multiuser-oriented automatic measuring and controlling energy-saving kiln waste heat utilization system |
| CN104596311A (en) * | 2014-04-14 | 2015-05-06 | 山东理工大学 | Kiln waste heat utilization system with intelligent fume quantity adjustment function |
| CN103940249A (en) * | 2014-04-14 | 2014-07-23 | 山东理工大学 | Multiuser-oriented utomatic measuring and controlling energy-saving kiln waste heat utilization system |
| CN104596313A (en) * | 2014-04-14 | 2015-05-06 | 山东理工大学 | Kiln excess-heat utilizing system with variable-frequency fan capable of intellectually controlling frequency |
| CN104596312A (en) * | 2014-04-14 | 2015-05-06 | 山东理工大学 | Residual heat utilization system for intelligently controlling heat of user |
| CN104713377A (en) * | 2014-04-14 | 2015-06-17 | 山东理工大学 | Kiln waste heat system intelligently controlling electric heating equipment according to heat exchange amount |
| CN104713378A (en) * | 2014-04-14 | 2015-06-17 | 山东理工大学 | Kiln waste heat system for intelligently controlling heat consumption of users |
| CN103900389A (en) * | 2014-04-14 | 2014-07-02 | 山东理工大学 | Intelligent-control efficient kiln waste heat utilization system |
| CN104713376A (en) * | 2014-04-14 | 2015-06-17 | 山东理工大学 | Kiln waste heat system for automatically controlling amount of hot water input into heat exchanger |
| CN103954143B (en) * | 2014-05-05 | 2014-11-26 | 山东省能源与环境研究院 | Bootstrap system for rotary cement kiln |
| CN103954143A (en) * | 2014-05-05 | 2014-07-30 | 山东省能源与环境研究院 | Bootstrap system for rotary cement kiln |
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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 |
Expiration termination date: 20121022 Granted publication date: 20030917 |