CN203010643U - Flue mounting part with air preheating function and flue piled with same - Google Patents
Flue mounting part with air preheating function and flue piled with same Download PDFInfo
- Publication number
- CN203010643U CN203010643U CN2012207203978U CN201220720397U CN203010643U CN 203010643 U CN203010643 U CN 203010643U CN 2012207203978 U CN2012207203978 U CN 2012207203978U CN 201220720397 U CN201220720397 U CN 201220720397U CN 203010643 U CN203010643 U CN 203010643U
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- Prior art keywords
- flue
- installing component
- mounting part
- air
- hole
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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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Abstract
The utility model relates to a flue mounting part with the air preheating function and a flue piled with the same. The flue mounting part used for a rear flue of a grate-fired furnace is a graphite mounting part of L-shaped structure and provided with a plurality of through holes in the height direction. The flue mounting part with the air preheating function for the grate-fired furnace substitutes for steel plates or fireproof bricks in the prior art, a great quantity of engineering materials and mounting cost are saved, and the flue mounting part is simple and practical. During use, cost of additionally mounting an air preheater with no need to mount the air preheater is omitted. Low-temperature acid corrosion of the flue is eliminated, smoke temperature can effectively decrease to 70 DEG C from 100 DEG C, and waste heat can be utilized. The problem about dust accumulation can be completely solved. Tail heat exchange rate is guaranteed, and blowing out and electric energy waste caused by dust accumulation are eliminated.
Description
Technical field
The utility model relates to a kind of flue installing component and piles up the flue that forms, and relates in particular to a kind of grate furnace back-end ductwork installing component with the air preheat function and piles up the flue that forms.
Background technology
Traditional grate furnace back-end ductwork is generally Plate Welding and forms, and steel plate is outside for insulation material or form with laying fireproof bricks.In order effectively to utilize fume afterheat, generally at boiler flue gas outlet place's installation economizer and air preheater.But larger or the installation site is limited or can not effectively control the acid etching problem due to up-front investment, actual little tonnage grate furnace does not generally install air preheater additional.And at present because the ature of coal of grate furnace worse and worse, causes the boiler combustion situation very undesirable, for improving efficiency of combustion, it is very necessary that air preheater seems again.
The utility model content
The utility model is for existing heating furnace above shortcomings, a kind of grate furnace back-end ductwork installing component with the air preheat function is provided and piles up the flue that forms, described grate furnace back-end ductwork installing component with the air preheat function is to build flue by laying bricks or stones, after having built flue by laying bricks or stones with these parts, parts itself are exactly an air preheater, do not need to install additional in addition air preheater; These parts use the graphite cutting forming, and graphite can solve grate furnace tail flue gas cold end corrosion problem fully; In parts, flue is vertical direction and smooth surface, can solve the dust stratification problem in flue fully.
The technical scheme that the utility model solves the problems of the technologies described above is as follows: a kind of back-end ductwork that is used for grate furnace with the installing component of air preheat function, described installing component is the graphite material installing component with L shaped structure, along having a plurality of through holes on the direction of described installing component height.
On the basis of technique scheme, the utility model can also be done following improvement.
Further, the height of described installing component is 450mm～550mm, and the diameter of described through hole is 50mm～150mm.
Further, the top of described installing component has L shaped projection, and the bottom of described installing component has L shaped groove, and the size of described L shaped projection and the size of L shaped groove are complementary.
The utility model also provides a kind of technical scheme that solves the problems of the technologies described above as follows: a kind of by pile up the flue that forms with the installing component of air preheat function, described flue is spliced by the flue structure of a plurality of rectangles, the flue structure of described rectangle is piled up by two described installing components and is formed, the flue structure of described rectangle has the through hole of a rectangle, through hole on described installing component is used for the circulation cold air, and the rectangular through-hole in the flue structure of described rectangle is used for circulating hot flue gas.
Further, the flue structure of described a plurality of rectangles is spliced by the projection at described installing component top and the groove of bottom.
The beneficial effects of the utility model are: the grate furnace back-end ductwork installing component of the utility model band air preheat function has substituted steel plate of the prior art or refractory brick, thereby has saved a large amount of engineering materials and mounting cost, and is simple and practical; In use, need not consider the installation site of air preheater, save the cost that installs in addition air preheater additional; Stop the acid corrosion of flue low temperature, can drop to effective cigarette temperature about 70 degree from about 100 degree, UTILIZATION OF VESIDUAL HEAT IN is obvious; Solve the dust stratification problem fully, not only guaranteed the afterbody rate of heat exchange, also stopped the blowing out phenomenon that causes because of the dust stratification problem and the phenomenon of wasting electric energy.
Description of drawings
Fig. 1 is the structural representation of the grate furnace back-end ductwork installing component of the utility model band air preheat function;
Fig. 2 is that the utility model is by pile up the structural representation of the flue that forms with the grate furnace back-end ductwork installing component of air preheat function.
The specific embodiment
Below in conjunction with accompanying drawing, principle of the present utility model and feature are described, example only is used for explaining the utility model, is not be used to limiting scope of the present utility model.
As shown in Figure 1, the described back-end ductwork that is used for grate furnace with the installing component of air preheat function, described installing component is the graphite material installing component with L shaped structure, along having a plurality of through holes 2 on the direction of described installing component height.The height of described installing component is 450mm～550mm, and the diameter of described through hole is 50mm～150mm.The top of described installing component has L shaped projection 1, and the bottom of described installing component has L shaped groove 3, and the size of described L shaped protruding 1 size and L shaped groove 3 is complementary.
Preferably, described installing component both sides respectively are designed to 500mm, and 800mm and 1000mm, wall thickness are 200mm, and 300mm and 400mm highly respectively are designed to 500mm.Through hole is that two installing components in 100mm. up and down can be spliced by groove and protruding two parts.Site operation can cut arbitrarily aspect height and the length of side.
As shown in Figure 2, described flue forms by piling up with the installing component of air preheat function, described flue is spliced by the flue structure of a plurality of rectangles, the flue structure of described rectangle is piled up by two described installing components and is formed, the flue structure of described rectangle has the through hole 4 of a rectangle, through hole 2 on described installing component is used for circulation cold air 5, and the rectangular through-hole in the flue structure of described rectangle is used for circulating hot flue gas 6.The flue structure of described a plurality of rectangles is spliced by the projection at described installing component top and the groove of bottom.Whole height is determined after calculating by heating power.If just burner hearth is sent in the heating of air blast cold air, can entirely be used these parts to build flue by laying bricks or stones.
With the grate furnace back-end ductwork installing component of air preheat function, component materials is formed by graphite block machining.The profiled part heavy wall vertically is comprised of a plurality of ducts, is used for the cold air that circulates.Two parts horizontal directions form a rectangular shape, and hot flue gas is used for circulating in the middle of rectangle.The flue that so just forms an air preheater.The duct of flue outside leads to cold air, and direction is for from the bottom to top; In flue, intracardiac logical hot flue gas, fall down on direction is served as reasons.A pair of like this rectangular flue can increase according to field condition, thereby forms whole flue.Whole flue is comprised of band air preheat function flue installing component.Simultaneously have the characteristics such as antiacid caustic corrosion, smooth surface due to graphite material, solved the problem of flue cold end corrosion and dust deposit in flue.Can improve utilization rate of waste heat and improve rate of heat exchange.
With the grate furnace back-end ductwork installing component of air preheat function, can design by the different type of furnaces and flue gas flow the parts of different specification size.Two parts partner, and form the flue of one section air preheater.Material itself is made of graphite.Graphite can be purchased.Carry out machining according to different specification size.Can vertically and transversely cut parts according to actual conditions during on-the-spot the installation.Can not affect the heat transfer effect of air preheater.The control of heat exchange area is determined by the height of flue.When if flue height is large, cold air can enter rather than enter from the bottom in the middle of flue.When if flue height is inadequate, increase heat exchange area thereby can use larger sized parts instead.
After installing the flue that is comprised of parts, the cold air of air blast just can enter the through hole of heavy wall from the bottom, and little rectangular through-hole flows through hot flue gas from the centre.So just formed air preheater.Cold air is cold working medium and heat-barrier material.When parts damages, the parts of replaceable damage do not need from new installation.On-the-spot simple.
The above is only preferred embodiment of the present utility model, and is in order to limit the utility model, not all within spirit of the present utility model and principle, any modification of doing, is equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.
Claims (5)
1. flue installing component with the air preheat function, described installing component is used for the back-end ductwork of grate furnace, it is characterized in that, described installing component is the graphite material installing component with L shaped structure, along having a plurality of through holes on the direction of described installing component height.
2. the flue installing component with the air preheat function according to claim 1, is characterized in that, the height of described installing component is 450mm～550mm, and the diameter of described through hole is 50mm～150mm.
3. the flue installing component with the air preheat function according to claim 1, it is characterized in that, the top of described installing component has L shaped projection, and the bottom of described installing component has L shaped groove, and the size of described L shaped projection and the size of L shaped groove are complementary.
4. pile up by described flue installing component with the air preheat function as arbitrary in claims 1 to 3 the flue that forms for one kind, it is characterized in that, described flue is spliced by the flue structure of a plurality of rectangles, the flue structure of described rectangle is piled up by two described installing components and is formed, the flue structure of described rectangle has the through hole of a rectangle, through hole on described installing component is used for the circulation cold air, and the rectangular through-hole in the flue structure of described rectangle is used for circulating hot flue gas.
5. flue according to claim 4, is characterized in that, the flue structure of described a plurality of rectangles is spliced by the projection at described installing component top and the groove of bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012207203978U CN203010643U (en) | 2012-12-21 | 2012-12-21 | Flue mounting part with air preheating function and flue piled with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012207203978U CN203010643U (en) | 2012-12-21 | 2012-12-21 | Flue mounting part with air preheating function and flue piled with same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203010643U true CN203010643U (en) | 2013-06-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012207203978U Expired - Fee Related CN203010643U (en) | 2012-12-21 | 2012-12-21 | Flue mounting part with air preheating function and flue piled with same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203010643U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104329684A (en) * | 2013-07-22 | 2015-02-04 | 中石化洛阳工程有限公司 | Method and device for reducing exhaust gas temperature |
-
2012
- 2012-12-21 CN CN2012207203978U patent/CN203010643U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104329684A (en) * | 2013-07-22 | 2015-02-04 | 中石化洛阳工程有限公司 | Method and device for reducing exhaust gas temperature |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130619 Termination date: 20161221 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |