CN203550216U - Two-side reinforcing heat-transfer smoke tube of vertical type gas-fired hot water boiler - Google Patents
Two-side reinforcing heat-transfer smoke tube of vertical type gas-fired hot water boiler Download PDFInfo
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- CN203550216U CN203550216U CN201320739588.3U CN201320739588U CN203550216U CN 203550216 U CN203550216 U CN 203550216U CN 201320739588 U CN201320739588 U CN 201320739588U CN 203550216 U CN203550216 U CN 203550216U
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Abstract
The utility model provides a reinforcing heat-transfer smoke tube of a vertical type gas-fired hot water boiler. The two-side reinforcing heat-transfer smoke tube of the vertical type gas-fired hot water boiler is characterized in that longitudinal corrugated fins are arranged outside the smoke tube in a sleeved mode, a blind tube with a spiral piece is arranged inside the smoke tube, the longitudinal corrugated fins are formed by repeatedly folding a thin steel plate according to a width half of the interval of the smoke tubes and then welded in a coiled mode, the whole corrugated fins are closely arranged on the outer wall surface of the smoke tube in a high-frequency welding and sleeved mode and can obviously expand the heat exchange area of the outer side of the smoke tube, and therefore natural convection heat transfer of external water of the smoke tube is reinforced. After the spiral piece is wound outside the blind tube, the whole blind tube is inserted into the smoke tube and fixed, the blind tube enables the circulation area of smoke to be reduced and increases flow speed of the smoke, the spiral piece enables the smoke to flow spirally and prolongs the flow stroke of the smoke, and therefore convection heat exchange between the smoke and the wall surface of the smoke tube is reinforced. The two-side reinforcing heat-transfer smoke tube of the vertical type gas-fired hot water boiler is simple in structure, convenient to manufacture, and capable of reinforcing the convection heat transfer between the smoke and water, lowering the temperature of exhausted smoke of the boiler and effectively improving the heat efficiency of the boiler.
Description
Technical field
The utility model relates to a kind of smoke pipe of Verticle gas hot-water boiler, relates in particular to a kind of bilateral augmentation of heat transfer smoke pipe.
Background technology
Verticle gas hot-water boiler is the important thermal hardware take natural gas as fuel heat production in next life water, and flue gas is walked in pipe, belongs to smaller hard flour pancake boiler, and it is simple and compact for structure, floor space is little, environmental pollution is low, thereby is widely used.Smoke pipe is the core component of boiler heat exchange system, the general smooth straight that adopts at present, and body of heater limitation in height the length of smoke pipe, make flue gas flow shorter, the heat exchange area deficiency of smoke pipe, the convection transfer rate of flue gas and tube wall face is generally less, thereby smooth straight cannot fully absorb the heat that fuel combustion discharges, cause exhaust gas temperature higher, its exhaust gas temperature is generally more than 230 ℃ according to statistics, not only waste a large amount of heat energy, and can cause environmental thermal pollution, cause the thermal efficiency of Verticle gas hot-water boiler on the low side.Meanwhile, the smoke pipe outside of Verticle gas hot-water boiler is Static Water, be subject to after the heating of smoke pipe wall, and water generation free convection, thereby its coefficient of heat transfer is also smaller.Visible, if improve the overall thermal efficiency of boiler, the convection transfer rate in smoke pipe inner side and outside all needs to improve.
Summary of the invention
The purpose of this utility model is to solve the problems of the technologies described above, and provides a kind of novel structure, heat transfer efficiency is higher, manufacturing process is simple, be applicable to the bilateral augmentation of heat transfer smoke pipe of Verticle gas hot-water boiler.
The utility model adopts following technical scheme: by sheet metal, according to the folding rear curling longitudinal ripple fin that is welded of the width of smoke pipe spacing half, overall longitudinal ripple fin adopts high-frequency welding to be closely sleeved on smoke pipe outside wall surface.
One section of isometric with smoke pipe, diameter is less pipe, two ends welding block or only have the welding of gas approach end block blind pipe, flight is wound around and is welded on blind pipe outside wall surface, the helical angle of flight is according to flue gas flow capable of regulating when designing, blind pipe and flight entirety are inserted after smoke pipe, and smoke pipe inwall is close in the outer of flight.
Smoke pipe and longitudinal ripple fin, blind pipe and flight form bilateral augmentation of heat transfer smoke pipe jointly.
The utility model adopts after technique scheme, compared with prior art has following beneficial effect: the one, and longitudinal ripple shape fin can significantly be expanded the heat exchange area in smoke pipe outside, must strengthen the outer diabatic process of smoke pipe.The 2nd, smoke pipe and longitudinal ripple fin are all vertical layout, can not produce form drag to the free convection of outside tube water.The 3rd, blind pipe and flight entirety are inserted
Enter after smoke pipe, occupy the part circulation area of smoke pipe, the circulation area of flue gas is reduced, can improve flue gas flow rate, and then the convection heat transfer' heat-transfer by convection of strengthening flue gas and smoke pipe wall.The 4th, smoke pipe inner screwy fin can make flue gas produce helical flow, prolong smoke flow process, and then the heat convection of strengthening flue gas and smoke pipe wall.Structure-reinforced by outside in smoke pipe, can significantly improve the convection transfer rate of smoke pipe entirety, effectively strengthen flue gas and water convection heat transfer' heat-transfer by convection, can reduce exhaust gas temperature, thereby improve boiler thermal output, reach the target of the saving energy.
Accompanying drawing explanation
Fig. 1 is the three-dimensional structure schematic diagram of bilateral augmentation of heat transfer smoke pipe.
Fig. 2 is the blind pipe three-dimensional structure schematic diagram of winding screw sheet.
Fig. 3 is the smoke pipe three-dimensional structure schematic diagram of overcoat longitudinal ripple fin.
In figure, 1-longitudinal ripple fin, 2-flight, 3-blind pipe, 4-smoke pipe.
The specific embodiment
As shown in Figure 1, a kind of bilateral augmentation of heat transfer smoke pipe of Verticle gas hot-water boiler, comprise longitudinal ripple fin 1, flight 2, blind pipe 3 and smoke pipe 4, longitudinal ripple fin 1 is sleeved on smoke pipe 4 outside wall surface, flight 2 is wrapped in blind pipe 3 outside wall surface, then entirety is inserted smoke pipe 4, and blind pipe 3 is isometric with smoke pipe 4.
Longitudinal ripple fin 1 by sheet metal according to folding rear curling being welded of the width of smoke pipe spacing half, entirety longitudinal ripple fin 1 adopts high-frequency welding to be closely sleeved on smoke pipe 4 outside wall surface, can enlarge markedly smoke pipe 4 outside heat exchange areas, smoke pipe 4 and longitudinal ripple fin 1 are all vertical layout, can not produce form drag to the free convection of cigarette outside tube water.
Flight 2 is wound around and is welded on blind pipe 3 outside wall surface, and blind pipe 3 and flight 2 entirety are inserted after smoke pipe 4, and smoke pipe 4 inwalls are close in the outer of flight 2, make flue gas produce helical flow, prolong smoke flow process, and then the heat convection of strengthening flue gas and smoke pipe wall.
The two ends welding of blind pipe 3 blocks or only has the welding of gas approach end to block, blind pipe 3 and flight 2 entirety are inserted after smoke pipe 4, occupy the central area circulation area of smoke pipe 4, and the circulation area of flue gas is reduced, can improve flue gas flow rate, and then the convection heat transfer' heat-transfer by convection of strengthening flue gas and smoke pipe wall.
Smoke pipe 4 and be sleeved on the longitudinal ripple fin 1, blind pipe 3 of its outside wall surface and flight 2 is common forms a kind of bilateral augmentation of heat transfer smoke pipe.This strengthening smoke pipe simple in structure, easily manufactured, can strengthen the heat convection between flue gas and water, significantly reduces the exhaust gas temperature of boiler, effectively improves the thermal efficiency of boiler.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.
Claims (4)
1. the bilateral augmentation of heat transfer smoke pipe for Verticle gas hot-water boiler, comprise longitudinal ripple fin (1), flight (2), blind pipe (3) and smoke pipe (4), it is characterized in that, longitudinal ripple fin (1) is closely sleeved on smoke pipe (4) outside wall surface, the outer welding flight (2) that is wound around of blind pipe (3), blind pipe (3) and flight (2) entirety are inserted in smoke pipe (4).
2. bilateral augmentation of heat transfer smoke pipe according to claim 1, it is characterized in that, longitudinal ripple fin (1) by sheet metal according to folding rear curling being welded of the width of smoke pipe spacing half, entirety longitudinal ripple fin (1) adopts high-frequency welding to be closely sleeved on smoke pipe (4) outside wall surface, can significantly expand smoke pipe (4) outside heat exchange area, smoke pipe (4) and longitudinal ripple fin (1) are all vertical layout, can not produce form drag to the free convection of cigarette outside tube water.
3. bilateral augmentation of heat transfer smoke pipe according to claim 1, it is characterized in that, flight (2) is wound around and is welded on blind pipe (3) outside wall surface, blind pipe (3) and flight (2) entirety are inserted after smoke pipe (4), smoke pipe (4) inwall is close in the outer of flight (2), make flue gas produce helical flow, prolong smoke flow process, and then the heat convection of strengthening flue gas and smoke pipe wall.
4. bilateral augmentation of heat transfer smoke pipe according to claim 1, it is characterized in that, the two ends welding of blind pipe (3) blocks or only has the welding of gas approach end to block, blind pipe (3) and flight (2) entirety are inserted after smoke pipe (4), occupy the central area circulation area of smoke pipe (4), the circulation area of flue gas is reduced, can improve flue gas flow rate, and then the convection heat transfer' heat-transfer by convection of strengthening flue gas and smoke pipe wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320739588.3U CN203550216U (en) | 2013-11-22 | 2013-11-22 | Two-side reinforcing heat-transfer smoke tube of vertical type gas-fired hot water boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320739588.3U CN203550216U (en) | 2013-11-22 | 2013-11-22 | Two-side reinforcing heat-transfer smoke tube of vertical type gas-fired hot water boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203550216U true CN203550216U (en) | 2014-04-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320739588.3U Expired - Fee Related CN203550216U (en) | 2013-11-22 | 2013-11-22 | Two-side reinforcing heat-transfer smoke tube of vertical type gas-fired hot water boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203550216U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104019550A (en) * | 2013-11-22 | 2014-09-03 | 郑州大学 | Double-side strengthened heat transfer smoke tube of vertical gas-fired hot water boiler |
| CN106152514A (en) * | 2016-09-27 | 2016-11-23 | 郑州大学 | Novel bifilar stream central flame flame vacuum boiler |
-
2013
- 2013-11-22 CN CN201320739588.3U patent/CN203550216U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104019550A (en) * | 2013-11-22 | 2014-09-03 | 郑州大学 | Double-side strengthened heat transfer smoke tube of vertical gas-fired hot water boiler |
| CN104019550B (en) * | 2013-11-22 | 2016-08-17 | 郑州大学 | A kind of bilateral augmentation of heat transfer smoke pipe of Verticle gas hot-water boiler |
| CN106152514A (en) * | 2016-09-27 | 2016-11-23 | 郑州大学 | Novel bifilar stream central flame flame vacuum boiler |
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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: 20140416 Termination date: 20171122 |