CN203349676U - Chimney recovering waste heat of boiler smoke - Google Patents
Chimney recovering waste heat of boiler smoke Download PDFInfo
- Publication number
- CN203349676U CN203349676U CN 201320306154 CN201320306154U CN203349676U CN 203349676 U CN203349676 U CN 203349676U CN 201320306154 CN201320306154 CN 201320306154 CN 201320306154 U CN201320306154 U CN 201320306154U CN 203349676 U CN203349676 U CN 203349676U
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- CN
- China
- Prior art keywords
- chimney
- urceolus
- boiler
- waste heat
- fume afterheat
- 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 - Fee Related
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Abstract
The utility model discloses a chimney recovering waste heat o a boiler smoke. The chimney recovering waste heat of the boiler smoke comprises a pedestal plate and a cylinder fastened on the pedestal plate, wherein the pedestal plate comprises an internal cylinder and an external cylinder sleeved outside the internal cylinder; the bottom of the external cylinder is provided with a boiler exhaust air inlet arranged along an outer tangent line of the external cylinder; and the external surface of the external cylinder is provide with spiral heat exchanging half tubes continuously winded on the external surface. The chimney recovering waste heat of the boiler smoke solves a problem of direct emission of high temperature smoke in the present boiler industry; and with the chimney, end wind and waste heat can be efficiently recovered and more than 5% of total heat production of the boiler can be saved. The chimney revering waste heat of boiler smoke is simply structured with small investment and basically free of maintenance, thereby providing the chimney with great economic, social and practical values and wide market application.
Description
Technical field
The utility model relates to a kind of chimney, is specifically related to a kind of chimney of recovery boiler fume afterheat.
Background technology
At present, after the tail wind after domestic and international various boiler combustions generally carries out the most of heat of pre-recuperation of heat through economizer to boiler feedwater, its temperature is still between 120 ℃ to 100 ℃, and this partial heat energy accounts for 10% of boiler quantity of heat production, directly discharged in atmosphere.Not only waste the valuable energy, and atmospheric environment is polluted.At the current energy, more and more under intense situation, this partial heat energy should be not out in the cold again, if a part is wherein reclaimed, will be a huge energy, can produce high economic worth and social value.The boiler that the evaporation capacity of take is 10 tons/hour is example, if the preheating of chimney is reclaimed, temperature of outgoing air is down to 70 ℃, can save 600 tons of standard coals every year, is worth more than 40 ten thousand yuan.
The utility model content
The technical problems to be solved in the utility model is to provide a kind of chimney of effectively recovery boiler tail wind waste heat.
For solving the problems of the technologies described above, technical solution adopted in the utility model is: a kind of chimney of recovery boiler fume afterheat comprises bedplate and is fixed on the cylindrical shell on bedplate; Described cylindrical shell comprises inner core and is enclosed within the urceolus of inner core outside; The bottom of urceolus tangent line direction outside urceolus is provided with boiler air draft import, and on the outer surface of urceolus, continuous winding has spiral heat exchange semicanal.
Wherein, the top of described cylindrical shell is provided with the cap that keeps off the rain.
Wherein, the ratio of described urceolus diameter and inner diameter of steel flue is 1:0.618.
Wherein, the ratio of described urceolus diameter and chimney height is 1:25.
Wherein, the axis of described inner core and urceolus is consistent.
Wherein, the outside of described spiral heat exchange semicanal is equipped with the rock wool heat-preservation layer, and the outside of rock wool heat-preservation layer is provided with watertight composition.
Wherein, the bottom of described urceolus and be provided with drainpipe below boiler air draft import, and on drainpipe, drain valve is installed.
Wherein, the upper orifice of described spiral heat exchange semicanal is cooling water inlet, and its lower nozzle is hot water outlet.
The beneficial effect that adopts technique scheme to produce is: the utility model has solved the directly problem of discharge of current boiler industry high-temperature flue gas, can effectively reclaim tail wind waste heat, can save more than 5% of boiler heat production total amount.The utility model is simple in structure, invests littlely, and basic freedom from repairs, have high economic worth, social value and practical value, has a wide range of applications market.
The accompanying drawing explanation
Fig. 1 is the utility model structural profile schematic diagram.
Wherein 1, bedplate, 2, inner core, 3, urceolus, 4, spiral heat exchange semicanal, 5, boiler air draft import, 6, the cap that keeps off the rain, 7, the rock wool heat-preservation layer, 8, watertight composition, 9, drainpipe, 10, drain valve, 11, cooling water inlet, 12, hot water outlet.
The specific embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
As shown in Figure 1, the chimney that the utility model is a kind of recovery boiler fume afterheat comprises bedplate 1 and is fixed on the cylindrical shell on bedplate 1 that the top of cylindrical shell is provided with the cap 6 that keeps off the rain; Cylindrical shell comprises inner core 2 and is enclosed within the urceolus 3 of inner core 2 outsides, and inner core 2 is consistent with the axis of urceolus 3, and the ratio of urceolus 3 diameters and inner core 2 diameters is 1:0.618, and the ratio of urceolus 3 diameters and chimney height is 1:25; The bottom of urceolus 3 is provided with boiler air draft import 5 along the outer tangent line direction of urceolus 3, the bottom of urceolus 3 and be provided with drainpipe 9 below boiler air draft import 5, and drain valve 10 is installed on drainpipe 9, and drainpipe 9 and drain valve 10 are for discharging catchmenting that flue gas condensing gets off; On the outer surface of urceolus 3, continuous winding has spiral heat exchange semicanal 4, and the upper orifice of spiral heat exchange semicanal 4 is cooling water inlet 11, and its lower nozzle is hot water outlet 12; The outside of spiral heat exchange semicanal 4 is equipped with rock wool heat-preservation layer 7, and the outside of rock wool heat-preservation layer 7 is provided with watertight composition 8.
Urceolus 3 of the present utility model adopts 316L material corrosion resistant plate to make; The 304 material stainless steel semicanals that spiral heat exchange semicanal 4 is 3 millimeters of thickness, its effect is the passage as current, with the hot blast reverse flow, spiral heat exchange semicanal 4 can also play booster action to the intensity of urceolus 3 in addition.The thickness of rock wool heat-preservation layer 7 is 10 centimetres, prevents heat loss; The outside of rock wool heat-preservation layer 7 first is wound around the twice bituminized fabric, then carries out the waterproof rain-proof processing with fiber glass resin, as watertight composition 8.
The effect of inner core 2 is to regulate the flow direction of hot blast, makes hot blast air-flow along formation annular rising between inner core 2 and urceolus 3 in cylindrical shell, improves heat exchange efficiency.Hour, inner core 2 adopts the 316L corrosion resistant plates to roll to diameter; For large-sized boiler, (be greater than 80 centimetres) when inner diameter of steel flue is larger, inner core 2 can be used concreting.
The utility model adopts the indirect heat exchange mode, at chimney barrel external welding spiral heat exchange semicanal 4, and the interior logical cold water of spiral heat exchange semicanal 4, for absorbing the heat of flue gas, all right conduct is to the preheating of boiler soft water or the use of winter heating.
The hot blast that boiler is discharged enters the annular passage between urceolus 3 and inner core 2 from the boiler air draft import 5 of chimney bottom.The diameter of urceolus 3 depends on the exhaust air rate of boiler, and the ratio of urceolus 3 diameters and chimney height is 1:25, and the ratio of urceolus 3 diameters and inner core 2 diameters is 1:0.618.
For large-sized boiler, when urceolus 3 diameters are greater than 2 meters, can adopt the little tapered chimney in large top, the end, tapering is 0.5-1%, between inner core 2 and urceolus 3, with 316L stainless steel shaped steel, does lacing wire, strengthens the rigidity of urceolus 3.Inner core 2 and urceolus 3 and the 316L material corrosion resistant plate of flue gas contact portion by anti-flue gas corrosion better performances.The steel plate thickness of urceolus 3, according to diameter, is about the 6-12 millimeter.The diameter of the water inlet pipe and water outlet pipe of spiral heat exchange semicanal 4 is determined by the size of boiler combustion amount.
The utility model has wide range of applications, and the investment recovery value is high, and in current energy crisis, under increasingly serious situation, prospect is very considerable.
Claims (8)
1. the chimney of a recovery boiler fume afterheat, comprise bedplate (1) and be fixed on the cylindrical shell on bedplate (1); It is characterized in that: described cylindrical shell comprises inner core (2) and is enclosed within the outside urceolus (3) of inner core (2); The bottom of urceolus (3) tangent line direction outside urceolus (3) is provided with boiler air draft import (5), and on the outer surface of urceolus (3), continuous winding has spiral heat exchange semicanal (4).
2. the chimney of a kind of recovery boiler fume afterheat according to claim 1, it is characterized in that: the top of described cylindrical shell is provided with the cap that keeps off the rain (6).
3. the chimney of a kind of recovery boiler fume afterheat according to claim 1, it is characterized in that: the ratio of described urceolus (3) diameter and inner core (2) diameter is 1:0.618.
4. according to the chimney of the arbitrary described a kind of recovery boiler fume afterheat of claim 1-3, it is characterized in that: the ratio of described urceolus (3) diameter and chimney height is 1:25.
5. the chimney of a kind of recovery boiler fume afterheat according to claim 1, it is characterized in that: described inner core (2) is consistent with the axis of urceolus (3).
6. the chimney of a kind of recovery boiler fume afterheat according to claim 1, it is characterized in that: the outside of described spiral heat exchange semicanal (4) is equipped with rock wool heat-preservation layer (7), and the outside of rock wool heat-preservation layer (7) is provided with watertight composition (8).
7. the chimney of a kind of recovery boiler fume afterheat according to claim 1 is characterized in that: the bottom of described urceolus (3) and be provided with drainpipe (9) in the below of boiler air draft import (5), and on drainpipe (9), drain valve (10) is installed.
8. the chimney of a kind of recovery boiler fume afterheat according to claim 1, it is characterized in that: the upper orifice of described spiral heat exchange semicanal (4) is cooling water inlet (11), its lower nozzle is hot water outlet (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320306154 CN203349676U (en) | 2013-05-30 | 2013-05-30 | Chimney recovering waste heat of boiler smoke |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320306154 CN203349676U (en) | 2013-05-30 | 2013-05-30 | Chimney recovering waste heat of boiler smoke |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203349676U true CN203349676U (en) | 2013-12-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320306154 Expired - Fee Related CN203349676U (en) | 2013-05-30 | 2013-05-30 | Chimney recovering waste heat of boiler smoke |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203349676U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105091010A (en) * | 2015-08-18 | 2015-11-25 | 来宾市江明科技开发有限公司 | Smoke recovery device for boiler |
| CN112984566A (en) * | 2021-03-05 | 2021-06-18 | 攀枝花学院 | Energy-saving big cooking stove |
-
2013
- 2013-05-30 CN CN 201320306154 patent/CN203349676U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105091010A (en) * | 2015-08-18 | 2015-11-25 | 来宾市江明科技开发有限公司 | Smoke recovery device for boiler |
| CN112984566A (en) * | 2021-03-05 | 2021-06-18 | 攀枝花学院 | Energy-saving big cooking stove |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131218 Termination date: 20170530 |