CN101943475B - Combustion chamber structure for heat exchanger - Google Patents
Combustion chamber structure for heat exchanger Download PDFInfo
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- CN101943475B CN101943475B CN2010102945498A CN201010294549A CN101943475B CN 101943475 B CN101943475 B CN 101943475B CN 2010102945498 A CN2010102945498 A CN 2010102945498A CN 201010294549 A CN201010294549 A CN 201010294549A CN 101943475 B CN101943475 B CN 101943475B
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Abstract
The invention relates to a combustion chamber structure for a heat exchanger. The combustion chamber structure comprises a combustion chamber, a combustion chamber cavity is formed in the combustion chamber, and a heat transfer medium passage is formed between positioning lug bosses on the outer wall of the combustion chamber; heat exchange fins are arranged in the combustion chamber; and the heat exchange fins are distributed from thin to thick between the top and the bottom of the combustion chamber. When the capacity of the combustion chamber is unchangeable, the combustion chamber structure increases the heat absorption area, shortens the propagation distance of the combustion flame, reduces the deflagration probability, reduces heat loss and improves the heat conversion efficiency; when the gas enters the combustion chamber cavity from the top of the combustion chamber, high cyclone movement is generated; when the gas just enters the combustion chamber, the speed of the gas is maximum speed; because of airflow movement, the flame propagation in a rapid combustion period is accelerated, the cooling of the mixed gas at the tail end is increased, combustion change between cycles is reduced, and the ignition boundary of the mixed gas is enlarged; the combustion chamber structure is favorable for combusting thinner mixed gas so that the combustion is more full, the generation of harmful gas such as carbon monoxide is reduced, and the fuel gas loss is reduced; and the combustion chamber structure is safe and reliable.
Description
Technical field
The present invention relates to a kind of combustion chamber, especially a kind of heat exchanger is used chamber structure, belongs to the technical field of heat exchanger.
Background technology
Heat exchanger is converted into heat energy with practical value with the chemical energy that act as burning gases of combustion chamber, but the chamber structure design has directly influenced the heat exchange efficiency of heat exchanger, the combustibility of heat exchanger and security to a great extent.Along with the development of heat exchanger, also come important to the design of combustion chamber towards energy-efficient consumption reduction environmental protection direction.At present, domestic heat exchanger heat exchange efficiency generally between 70% ~ 85%, and its combustion chamber be mostly column type, semicircle ball-type etc., this can not reach efficient target at all; Whether the sufficient combustion of combustion gas to be, also directly has influence on the thermal efficiency, completing combustion, and the thermal efficiency is high, and it is insufficient burn, causes also health risk of energy waste while.
Summary of the invention
The objective of the invention is to overcome the deficiency that exists in the prior art, provide a kind of heat exchanger to use chamber structure, its compact conformation has improved thermal conversion efficiency, and energy-conserving and environment-protective are safe and reliable.
According to technical scheme provided by the invention; Said heat exchanger is used chamber structure; Comprise the combustion chamber; Form the combustion chamber cavity in the said combustion chamber, the outer wall of combustion chamber is provided with the positioning boss that a plurality of and said combustion chamber fits tightly mutually, forms heat transfer medium channels between said adjacent positioning boss; Be provided with heat exchange fin in the combustion chamber; Said heat exchange fin is along being between top, combustion chamber and bottom by dredging to close distribution.
Said heat exchange fin comprises elongated wing, tubbiness wing, the first heat exchange wing and the second heat exchange wing; Said elongated wing, tubbiness wing, the first heat exchange wing and the second heat exchange wing distribute along between the top of combustion chamber and bottom successively; Said elongated wing and tubbiness wing distribute along the axis of combustion chamber, and the length of elongated wing is greater than the length of tubbiness wing; The first heat exchange wing and the second heat exchange wing edge distribute with the perpendicular direction of combustion chamber axis.
The said first heat exchange wing is cylindrical.The said second heat exchange wing is semi-cylindrical.Said combustion chamber is coniform.
Said combustion chamber is provided with shell, and said shell is provided with water inlet pipe and outlet pipe, and said water inlet pipe is connected through the heat transfer medium channels on the outer wall of combustion chamber with outlet pipe.Said shell adopts stainless steel to process.The top of said combustion chamber cavity is provided with end cap.Said heat transfer medium channels shape in the shape of a spiral on the outer peripheral face of combustion chamber.
Advantage of the present invention: elongated wing, tubbiness wing, the first heat exchange wing and the second heat exchange wing are installed in the cavity of combustion chamber, and said elongated wing, tubbiness wing, the first heat exchange wing and the second heat exchange wing are by dredging to close distribution, when making combustion chamber volume constant along between the top of combustion chamber and bottom; Increased endotherm area, chamber structure is compact, and combustion flame propagation is apart from weak point; Burning can be accomplished at short notice; Reduce the detonation probability, reduce thermal loss, improve thermal conversion efficiency; The combustion chamber be shaped as taper shape, when mist burnt at the top, burn rate was by accelerating slowly; At the combustion process initial stage, the heat of release is few, to mid-term the heat that discharges many; The later stage afterburning is less; Have the high thermal efficiency, such law of heat release satisfies the demand of people to heat exchanger, makes the heat exchanger working stability; Gas produces high swirling motion in the top, combustion chamber gets into the combustion chamber cavity time, is maximal rate when gas has just got into its speed of combustion chamber, because air motion; Thereby accelerated the flame propagation in the rapid combustion period, and increase the cooling of terminal mist, more be prone to heat radiation; Improve heat exchange efficiency, reduced burning change between circulation, enlarged the boundary of catching fire of mist; Be beneficial to burning lean mixture body, make that burning is more abundant, reduce the generation of harm gases such as carbon monoxide; Reduce the combustion gas loss, energy-conserving and environment-protective, safe and reliable.
Description of drawings
Fig. 1 is the structural representation of heat exchanger of the present invention.
Fig. 2 is the structural representation of combustion chamber of the present invention.
Fig. 3 is that the E-E of Fig. 2 is to view.
Fig. 4 is that the A-A of Fig. 3 is to view.
Fig. 5 is that the B-B of Fig. 3 is to view.
Fig. 6 is that the C-C of Fig. 3 is to view.
Fig. 7 is that the D-D of Fig. 3 is to view.
The specific embodiment
Like Fig. 1 ~ shown in Figure 7: the present invention includes combustion chamber 1, positioning boss 2, combustion chamber cavity 3, elongated wing 4, tubbiness wing 5, the first heat exchange wing 6, the second heat exchange wing 7, shell 8, water inlet pipe 9, outlet pipe 10, first gas channel 11, second gas channel 12, the 3rd gas channel 13, end cap 14 and heat transfer medium channels 15.
As depicted in figs. 1 and 2: said heat exchanger comprises shell 8 and is positioned at the combustion chamber 1 of said shell 8; The outer wall of said combustion chamber 1 is provided with the positioning boss 2 that fits tightly mutually with said combustion chamber 1; Said positioning boss 2 is a plurality of, and 1 outer peripheral face evenly distributes along the combustion chamber; 2 of adjacent positioning boss form heat transfer medium channels 15; Form combustion chamber cavity 3 in the combustion chamber 1.The inwall of positioning boss 2 and shell 8 is sealing and fixing mutually, can guarantee heat transfer medium between the inwall of combustion chamber 1 outer wall and shell 8 in the corresponding heat transfer medium channels 15 direction to outlet pipe 10 mobile.The shape that the positioning boss of said heat transfer medium channels 15 and combustion chamber 1 outer wall is 2 matches; Being connected between adjustment positioning boss 2 and combustion chamber 1 outer wall, can make positioning boss 2 along the combustion chamber 1 axis shape in the shape of a spiral, thereby make heat transfer medium channels 15 shape in the shape of a spiral.When heat transfer medium channels 15 is helical form, increased the endotherm area of medium, improved thermal conversion efficiency, reduce laminar flow layer, increase turbosphere, improved thermal conversion factor; Particulate in the heat transfer medium channels 15 is difficult to deposit fouling simultaneously, has reduced maintenance times, has prolonged service life, has reduced use cost.Be the space of gas combustion in the said combustion chamber cavity 3, the heat energy that produces after the gas combustion carries out heat exchange with the heat transfer medium that flows through in the heat transfer medium channels 15.Shell 8 is provided with water inlet pipe 9 and outlet pipe 10, and said water inlet pipe 9 is positioned at the upper end of shell 8, and outlet pipe 10 is positioned at the lower end of shell 8; 10 of water inlet pipe 9 and outlet pipes are connected through heat transfer medium channels 15.Because the gas combustion release heat in the combustion chamber cavity 3; After the cold water that gets into from water inlet pipe 9 flows through heat transfer medium channels 15; Heat transfer medium is positioned at corresponding heat transfer medium channels 15 between inwall and combustion chamber 1 outer wall of shell 8; Heat transfer medium directly directly contacts with the outer wall of combustion chamber 1, absorbs heat, has improved heat exchanger effectiveness; Heat transfer medium flows discharges hot water through outlet pipe 10 behind the bottom of shell 8.Shell 8 adopts stainless steel to process, and the top of combustion chamber 1 is provided with end cap 14.
Like Fig. 3 ~ shown in Figure 7: be provided with heat exchange fin in the said combustion chamber cavity 3, said heat exchange fin is along being between the top of combustion chamber 1 and bottom by dredging to close distribution, can under the constant situation of combustion chamber volume, increase endotherm area; Chamber structure is compact, and flame travel is short, and gas completions of can burning at short notice reduces the detonation probability, reduces thermal loss, the raising thermal conversion efficiency.Said heat exchange fin comprises elongated wing 4, tubbiness wing 5, the first heat exchange wing 6 and the second heat exchange wing 7, and promptly said elongated wing 4, tubbiness wing 5, the first heat exchange wing 6 and the second heat exchange wing 7 are successively along being by dredging to close distribution on the top of combustion chamber 1 and the bottom direction.The structure of said elongated wing 4, tubbiness wing 5, the first heat exchange wing 6 and the second heat exchange wing 7 is respectively like Fig. 4 ~ shown in Figure 7.1 axial length direction distributes along the combustion chamber for elongated wing 4 and tubbiness wing 5, and the first heat exchange wing 6 and the second heat exchange wing, 7 edges and combustion chamber 1 axis are to vertical direction distribution.Elongated wing 4 is positioned at the top of combustion chamber cavity 3, and the second heat exchange wing 7 is positioned at the bottom of combustion chamber cavity 3.The first heat exchange wing 6 is cylindric, and the second heat exchange wing 7 is semi-cylindrical.Be equipped with gas channel in elongated wing 4, tubbiness wing 5, the first heat exchange wing 6 and the second heat exchange wing 7, hot gas can pass through corresponding gas channel, thereby to flowing through the cold water heating in the heat transfer medium channels 15.
During practical implementation: elongated wing 4 is distributed in top to five/one's of combustion chamber cavity 31 length place, combustion chamber; Tubbiness wing 5 is positioned at the below of elongated wing 4, is distributed with 2 tubbiness wings 5 between per 2 elongated wings 4, and tubbiness wing 5 is extended downwardly into 2/5ths length places of combustion chamber 1 by the end of elongated wing 4; The first heat exchange wing 6 is positioned at the below of tubbiness wing 5, and is distributed with 2.5 first heat exchange wings 6 between per two tubbiness wings 5, the said first heat exchange wing 6 by the end of tubbiness wing 5 to 3/5ths length places that extend to combustion chamber 1; The second heat exchange wing 7 is evenly distributed on the bottom of first heat exchange wing 6 to the combustion chamber 1, and between per two first heat exchange wings 63 second heat exchange wings 7 is arranged.Elongated wing 4, tubbiness wing 5, the first heat exchange wing 6 and the second heat exchange wing 7 all are formed as one with the inwall of combustion chamber 1.
Like Fig. 1 ~ shown in Figure 7: during work, cold water gets into from water inlet pipe 9, and flows into heat transfer medium channels 15, and cold water flows to outlet pipe 10 along heat transfer medium channels 15.The cavity 3 internal combustion gas combustions in the combustion chamber of burner 1; The heat that gas combustion produces is after elongated wing 4, tubbiness wing 5, the first heat exchange wing 6, the second heat exchange wing 7 fully absorb; Direct heat transfer is given and is got into heat transfer medium channels 15 inner cold waters, realizes the heating of the cold water in the heat transfer medium channels 15.Heat in the combustion chamber cavity 3 spreads to the bottom of combustion chamber 1 through first gas channel 11 in the gas channel in the elongated wing 4, the tubbiness wing 5, second gas channel 12 and the 3rd gas channels 13 in the second heat exchange wing 7 in the first heat exchange wing 6 respectively successively; Thereby can the cold water in the heat transfer medium channels on 1 outer wall of combustion chamber 15 effectively be heated; Obtain required hot water, and can also heat supply.
The present invention is distributed with elongated wing 4, tubbiness wing 5, the first heat exchange wing 6 and the second heat exchange wing 7 in combustion chamber cavity 3, said elongated wing 4, tubbiness wing 5, the first heat exchange wing 6 and the second heat exchange wing 7 are by dredging to close distribution, when making combustion chamber 1 constancy of volume along between the top of combustion chamber 1 and bottom; Increased endotherm area, combustion chamber 1 compact conformation, combustion flame propagation is apart from weak point; Burning can be accomplished at short notice; Reduce the detonation probability, reduce thermal loss, improve thermal conversion efficiency; Combustion chamber 1 be shaped as taper shape, when mist burnt at the top, burn rate was by accelerating slowly; At the combustion process initial stage, the heat of release is few, to mid-term the heat that discharges many; The later stage afterburning is less; Have the high thermal efficiency, such law of heat release satisfies the demand of people to heat exchanger, makes the heat exchanger working stability; Gas produces high swirling motion in the top, combustion chamber gets into the combustion chamber cavity time, is maximal rate when gas has just got into its speed of combustion chamber, because air motion; Thereby accelerated the flame propagation in the rapid combustion period, and increase the cooling of terminal mist, more be prone to heat radiation; Improve heat exchange efficiency like this, reduced burning change between circulation, enlarged the boundary of catching fire of mist; Be beneficial to the more lean mixture body that burns, make that burning is more abundant, reduce the generation of harm gases such as carbon monoxide; Reduce the combustion gas loss, safe and reliable.
Claims (9)
1. a heat exchanger is used chamber structure; Comprise combustion chamber (1); Form combustion chamber cavity (3) in the said combustion chamber (1); The outer wall of combustion chamber (1) is provided with the positioning boss (2) that a plurality of and said combustion chamber (1) fits tightly mutually, forms heat transfer medium channels (15) between adjacent positioning boss (2); The combustion chamber is provided with heat exchange fin in (1); It is characterized in that: said heat exchange fin is along being between (1) top, combustion chamber and bottom by dredging to close distribution.
2. heat exchanger according to claim 1 is used chamber structure, it is characterized in that: said heat exchange fin comprises elongated wing (4), tubbiness wing (5), the first heat exchange wing (6) and the second heat exchange wing (7); Said elongated wing (4), tubbiness wing (5), the first heat exchange wing (6) and the second heat exchange wing (7) distribute along between the top of combustion chamber (1) and bottom successively; The axis of (1) distributes along the combustion chamber for said elongated wing (4) and tubbiness wing (5), and the length of elongated wing (4) is greater than the length of tubbiness wing (5); The first heat exchange wing (6) distributes with the perpendicular direction of second heat exchange wing (7) edge and combustion chamber (1) axis.
3. heat exchanger according to claim 2 is used chamber structure, it is characterized in that: the said first heat exchange wing (6) is cylindrical.
4. heat exchanger according to claim 2 is used chamber structure, it is characterized in that: the said second heat exchange wing (7) is semi-cylindrical.
5. heat exchanger according to claim 1 is used chamber structure, it is characterized in that: said combustion chamber (1) is coniform.
6. heat exchanger according to claim 1 is used chamber structure; It is characterized in that: said combustion chamber (1) is provided with shell (8); Said shell (8) is provided with water inlet pipe (9) and outlet pipe (10), and said water inlet pipe (9) is connected through the heat transfer medium channels (15) on the outer wall of combustion chamber (1) with outlet pipe (10).
7. heat exchanger according to claim 6 is used chamber structure, it is characterized in that: said shell (8) adopts stainless steel to process.
8. heat exchanger according to claim 1 is used chamber structure, it is characterized in that: the top of said combustion chamber cavity (3) is provided with end cap (14).
9. heat exchanger according to claim 1 is used chamber structure, it is characterized in that: said heat transfer medium channels (15) shape in the shape of a spiral on the outer peripheral face of combustion chamber (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102945498A CN101943475B (en) | 2010-09-28 | 2010-09-28 | Combustion chamber structure for heat exchanger |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102945498A CN101943475B (en) | 2010-09-28 | 2010-09-28 | Combustion chamber structure for heat exchanger |
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| Publication Number | Publication Date |
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| CN101943475A CN101943475A (en) | 2011-01-12 |
| CN101943475B true CN101943475B (en) | 2012-05-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010102945498A Active CN101943475B (en) | 2010-09-28 | 2010-09-28 | Combustion chamber structure for heat exchanger |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105588145A (en) * | 2016-01-25 | 2016-05-18 | 西北工业大学 | Micro-engine combustion chamber spiral evaporating pipe with fins arranged inside |
| CN111412656B (en) * | 2020-04-28 | 2024-04-12 | 西安交通大学 | Combustion heat exchange integrated gas heating wall-mounted furnace body |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5949447A (en) * | 1982-09-13 | 1984-03-22 | Kogata Gas Reibou Gijutsu Kenkyu Kumiai | Heat exchanger for combustion equipment |
| JPS61144390U (en) * | 1985-02-27 | 1986-09-05 | ||
| CN1005211B (en) * | 1985-07-08 | 1989-09-20 | 韦巴斯托沃克W·贝勒有限公司 | Water heater |
| CN2058320U (en) * | 1988-11-29 | 1990-06-20 | 曹亨嘉 | Domestic gas shower |
| JPH02176361A (en) * | 1988-12-27 | 1990-07-09 | Matsushita Electric Ind Co Ltd | Heat exchanger |
| JP3368773B2 (en) * | 1996-11-08 | 2003-01-20 | 松下電器産業株式会社 | Heat exchanger |
| CN2441027Y (en) * | 2000-09-27 | 2001-08-01 | 姚新安 | High performance energy saving boiler working at atmosphere |
| DE10201753A1 (en) * | 2002-01-18 | 2003-08-07 | Bosch Gmbh Robert | Useful output heating has cross section of heat exchanger's closed chamber reducing in upwards direction and changing into gas outlet, with protruding cooling ribs formed on inner wall of heat exchanger |
| CN201811440U (en) * | 2010-09-28 | 2011-04-27 | 无锡锡州机械有限公司 | Combustion chamber structure for heat exchanger |
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2010
- 2010-09-28 CN CN2010102945498A patent/CN101943475B/en active Active
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