CN101922792B - Cylindrical heat exchanger - Google Patents
Cylindrical heat exchanger Download PDFInfo
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- CN101922792B CN101922792B CN2010102781498A CN201010278149A CN101922792B CN 101922792 B CN101922792 B CN 101922792B CN 2010102781498 A CN2010102781498 A CN 2010102781498A CN 201010278149 A CN201010278149 A CN 201010278149A CN 101922792 B CN101922792 B CN 101922792B
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- end cover
- burning cavity
- screw sheel
- heat exchanger
- bottom end
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- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The invention relates to a cylindrical heat exchanger, comprising a combustion cavity, a spiral screw sheel, an upper end cover and a lower end cover, wherein the combustion cavity is a cylinder with an opening at each of two ends thereof, strip fins are evenly distributed at the inner peripheral wall of the combustion cavity, the strip fins are parallel to the axial direction of the cylindrical combustion cavity, the two ends of the strip fins are extended to the openings of the two ends of the combustion cavity; the spiral screw sheel is sheathed on the combustion cavity, convex spiral lines are arranged on the inner peripheral wall of the spiral screw sheel, the inner edges of the convex spiral lines are in close integration with the outer wall surface of the combustion cavity, a spiral channel is formed between the outer wall of the combustion cavity and the inner wall of the spiral screw sheel; the upper end cover and the lower end cover are of cup shape respectively with an opening at the end face, respectively cover the two ends of the combustion cavity and the screw sheel and are fixed with the two ends of the combustion cavity and the spiral screw sheel by tight coupling; and the upper end cover is provided with a water inlet which is communicated with one end of the spiral channel, and the lower end cover is provided with a water outlet which is communicated with the other end of the spiral channel.The cylindrical heat exchanger of the invention features delicate and reasonable structure, convenient maintenance and cleaning, long service life, high thermal efficiency, energy conservation and durability.
Description
Technical field
The present invention relates to a kind of heat exchanger, specifically is a kind of with the novel heat exchanger of high efficiency fuel as the heating heat transfer medium.
Background technology
At present, the heat exchanger of producing both at home and abroad is of a great variety, and it is widely used in the firing equipment system in places such as family, hotel, restaurant, hospital, office building.At present on the market heat exchanger comes in every shape, and their operation principle is all identical substantially, and promptly fuel (coal, oil, gas) burn in combustion furnace and produces high-temperature flue gas, and the high-temperature flue gas heat exchanger of flowing through is realized heat radiation, the heat exchange step of absorbing heat.Present heat exchanger is on the market pressed the fuel type branch, can be divided into coal-burning, gas type and fuel combustion type heat exchanger, and along with the international trend of energy-saving, environment-friendly and high-efficiency, the coal-burning heat exchanger is progressively eliminated.The gas type heat exchanger relies on environmental protection, polluting advantage such as few, to have become heat exchanger leading.Along with people's is to the higher pursuit of heat exchanger, and especially the standard to thermal conversion efficiency progressively improves, and the fuel combustion type heat exchanger has begun by Traditional industrial with directional steering family expenses direction.But there are problems such as complex structure, volume are big, thermal conversion efficiency is low, thermal losses is bigger in prior fuel oil type heat exchanger, not too meets the requirement of family expenses heat exchanger to thermal conversion efficiency.
Summary of the invention
The objective of the invention is to overcome the deficiency that exists in the prior art, provide a kind of structure ingenious rationally, be convenient to safeguard that cleaning, long service life, the thermal efficiency are high, be energy-conservation durable again cylindrical heat exchanger.
According to technical scheme provided by the invention: a kind of cylindrical heat exchanger; It is characterized in that: it comprises burning cavity, screw sheel, upper end cover and bottom end cover; Said burning cavity is the cylindrical shape of both ends open; On the internal perisporium of burning cavity, evenly be laid with strip fin, strip fin is parallel to the axis direction of cylindrical shape burning cavity, and the two ends of strip fin extend to burning cavity openings at two ends place; Screw sheel is enclosed within on the burning cavity, and the internal perisporium of screw sheel is provided with protruding helix, and the inner edge of said protruding helix is combined closely with the outside wall surface of burning cavity, forms a helical duct between burning chamber outer wall and the screw sheel inwall; Said upper end cover, bottom end cover are the cup-shaped of end face opening, and upper end cover, bottom end cover are enclosed within the two ends of burning cavity and screw sheel and are sealedly connected and fixed; Said upper end cover is provided with the water inlet that communicates with helical duct one end, and said bottom end cover is provided with the delivery port that communicates with the helical duct other end.
As further improvement of the present invention, the internal face of said upper end cover, bottom end cover is provided with circumferential interior sealed groove and outer seal groove; Seal through the inner seal ring in the sealed groove in being contained between the outer wall at upper end cover, bottom end cover and burning cavity two ends; Seal through the exterior seal ring that is contained in the outer seal groove between the outer wall at upper end cover, bottom end cover and screw sheel two ends.
As further improvement of the present invention, be set with the heat insulation reinforcing sleeve of both ends open on the said screw sheel, heat insulation reinforcing sleeve openings at two ends is made as reducing, the two ends of this reducing banding screw sheel; Heat insulation reinforcing sleeve two ends are stretched in upper end cover, the bottom end cover and are tightly connected.
As further improvement of the present invention, the delivery port place of the water inlet of said upper end cover and bottom end cover is equipped with temperature sensor.
As further improvement of the present invention, the end face upper edge circumference at said burning cavity two ends is evenly distributed with fixing hole; The end face upper edge circumference of said upper end cover, bottom end cover is evenly distributed with installing hole, and installing hole is corresponding one by one with fixing hole, and the screw that upper end cover, bottom end cover utilization are contained in installing hole and the fixing hole is fixedly connected on the burning cavity.
As further improvement of the present invention, said burning cavity adopts the aluminium of good heat conductivity to process.
As further improvement of the present invention, said screw sheel adopts high-temperature resistance plastice to process.
As further improvement of the present invention, said heat insulation reinforcing sleeve adopts stainless steel material to process.
The present invention compared with prior art, advantage is: structure is ingenious rationally, the combustion air air inflow is sufficient, can guarantee that fuel oil fully burns, and improves fuel availability; The burning cavity is designed to have the columnar structured of strip fin, can increase the convection heat transfer' heat-transfer by convection area of heat exchanger greatly, and strengthening heat transfer reduces exhaust gas temperature, reduces heat loss due to exhaust gas, improves the heat energy utilization rate; The water of heat absorption flows in helical duct; Prolonged the heat absorption path of current, and because flow path type in the shape of a spiral, current also are in the slight turbulence state all the time under the very low situation of flow velocity; Be difficult to form laminar flow; The main thermal resistance of convection heat transfer' heat-transfer by convection is overcome effectively, and conduct heat and strengthened simultaneously in the combustion chamber inside and outside, thereby heat transfer coefficient is very high.
Description of drawings
Fig. 1 is the perspective view of the embodiment of the invention.
Fig. 2 is the front view of the embodiment of the invention.
Fig. 3 is that A-A among Fig. 2 is to cutaway view.
Fig. 4 is the B portion enlarged diagram among Fig. 3.
The specific embodiment
Below in conjunction with concrete accompanying drawing and embodiment the present invention is described further.
As shown in the figure: the cylindrical heat exchanger among the embodiment mainly is made up of parts such as burning cavity 1, screw sheel 2, upper end cover 3, bottom end cover 5 and heat insulation reinforcing sleeves 4.
Like Fig. 1 ~ shown in Figure 3; Said burning cavity 1 is the cylindrical shape of both ends open; On the internal perisporium of burning cavity 1, evenly be laid with the strip fin 1a of some; Strip fin 1a is parallel to the axis direction of cylindrical shape burning cavity 1, and the two ends of strip fin 1a extend to burning cavity 1 openings at two ends place.Screw sheel 2 is enclosed within on the burning cavity 1, and the internal perisporium of screw sheel 2 is provided with protruding helix 2a, and the inner edge of said protruding helix 2a is combined closely with the outside wall surface of burning cavity 1, forms a helical duct 10 between burning cavity 1 outer wall and screw sheel 2 inwalls.Said upper end cover 3, bottom end cover 5 are the cup-shaped of end face opening, and upper end cover 3, bottom end cover 5 are enclosed within the two ends of burning cavity 1 and screw sheel 2 and are sealedly connected and fixed; The end face upper edge circumference at said burning cavity 1 two ends is evenly distributed with fixing hole 1b; The end face upper edge circumference of said upper end cover 3, bottom end cover 5 is evenly distributed with installing hole 2b, and installing hole 2b is corresponding one by one with fixing hole 1b, and upper end cover 3, bottom end cover 5 utilize the screw that is contained in installing hole 2b and the fixing hole 1b to be fixedly connected on the burning cavity 1.Said upper end cover 3 is provided with the water inlet 3a that communicates with helical duct 10 1 ends, and said bottom end cover 5 is provided with the delivery port 5a that communicates with helical duct 10 other ends.
Like Fig. 1 ~ shown in Figure 4, the internal face of said upper end cover 3, bottom end cover 5 is provided with circumferential interior sealed groove 6 and outer seal groove 8; Seal through the inner seal ring in the sealed groove in being contained in 67 between the outer wall at upper end cover 3, bottom end cover 5 and burning cavity 1 two ends; Seal through the exterior seal ring 9 that is contained in the outer seal groove 8 between the outer wall at upper end cover 3, bottom end cover 5 and screw sheel 2 two ends.
Like Fig. 1 ~ shown in Figure 4, in order to make the present invention's firm and durable more, and improve heat-proof quality; Be set with the heat insulation reinforcing sleeve 4 of both ends open on the said screw sheel 2; Heat insulation reinforcing sleeve 4 openings at two ends are made as reducing, and the two ends of this reducing banding screw sheel 2 are with further enhanced leaktightness property; Heat insulation reinforcing sleeve 4 two ends are stretched in upper end cover 3, the bottom end cover 5 and are tightly connected; In the present embodiment, seal through the exterior seal ring 9 that is contained in the outer seal groove 8 between the outer wall at upper end cover 3, bottom end cover 5 and heat insulation reinforcing sleeve 4 two ends.The delivery port 5a place of the water inlet 3a place of said upper end cover 3 and bottom end cover 5 is equipped with temperature sensor 11; Temperature sensor 11 can be responded to the temperature at water inlet 3a and delivery port 5a place in real time, is beneficial to automatic control of the present invention.
The burning cavity 1 preferred aluminium of good heat conductivity that adopts among the present invention is processed.The screw sheel 2 preferred high-temperature resistance plastices that adopt are processed.The heat insulation reinforcing sleeve 4 preferred stainless steel materials that adopt are processed.
The course of work of the present invention and operation principle are following:
During work; Fuel oil completing combustion in burning cavity 1; The efficient fully absorption of strip fin 1a that the heat that its burning produces is provided with by the cavity 1 that burns; The water inlet 3a of water from the upper end cover 3 gets in the helical duct 10, and directly contacts with the outer surface of burning cavity 1, and fully the delivery port 5a from the bottom end cover 5 flows out after the heat exchange.Water after the heating both can be used as the daily life water and also can be used for indoor heating.
Because burning cavity 1 adopts the extraordinary import aluminium of heat conductivility to process, and its inner surface is provided with strip fin 1a, can increase the convection heat transfer' heat-transfer by convection area of heat exchanger greatly; Strengthening heat transfer; Reduce exhaust gas temperature, reduce heat loss due to exhaust gas, improve the heat energy utilization rate.
Water directly contacts with the outer surface of burning cavity 1, has reduced the loss that the heat secondary transmits; Because flow path is designed to helical structure, under the constant situation of heat exchanger height dimension, flow path is longer, generally is 3.5 times of straight-through length, has increased heat exchange area greatly, has improved heat exchanger effectiveness; And because flow path type in the shape of a spiral; Current also are in the slight turbulence state all the time under the very low situation of flow velocity, be difficult to form laminar flow, and the main thermal resistance of convection heat transfer' heat-transfer by convection is overcome effectively; Burning cavity 1 inside and outside the heat transfer strengthened simultaneously, thereby heat transfer coefficient is very high.
Heat exchanger global design of the present invention becomes cylindrical shape, and volume is little, and it is little to take up space.
Claims (7)
1. cylindrical heat exchanger; It is characterized in that: it comprises burning cavity (1), screw sheel (2), upper end cover (3) and bottom end cover (5); Said burning cavity (1) is the cylindrical shape of both ends open; On the internal perisporium of burning cavity (1), evenly be laid with strip fin (1a), strip fin (1a) is parallel to the axis direction of cylindrical shape burning cavity (1), and the two ends of strip fin (1a) extend to burning cavity (1) openings at two ends place; Screw sheel (2) is enclosed within on the burning cavity (1); The internal perisporium of screw sheel (2) is provided with protruding helix (2a); The inner edge of said protruding helix (2a) is combined closely with the outside wall surface of burning cavity (1), forms a helical duct (10) between burning cavity (1) outer wall and screw sheel (2) inwall; Said upper end cover (3), bottom end cover (5) are the cup-shaped of end face opening, and upper end cover (3), bottom end cover (5) are enclosed within the two ends of burning cavity (1) and screw sheel (2) and are sealedly connected and fixed; Said upper end cover (3) is provided with the water inlet (3a) that communicates with helical duct (10) one ends, and said bottom end cover (5) is provided with the delivery port (5a) that communicates with helical duct (10) other end;
Be set with the heat insulation reinforcing sleeve (4) of both ends open on the said screw sheel (2), heat insulation reinforcing sleeve (4) openings at two ends is made as reducing, the two ends of this reducing banding screw sheel (2); Heat insulation reinforcing sleeve (4) two ends are stretched in upper end cover (3), the bottom end cover (5) and are tightly connected.
2. cylindrical heat exchanger as claimed in claim 1 is characterized in that: the internal face of said upper end cover (3), bottom end cover (5) is provided with circumferential interior sealed groove (6) and outer seal groove (8); Seal through the inner seal ring (7) that is contained in the interior sealed groove (6) between the outer wall at upper end cover (3), bottom end cover (5) and burning cavity (1) two ends; Seal through the exterior seal ring (9) that is contained in the outer seal groove (8) between the outer wall at upper end cover (3), bottom end cover (5) and screw sheel (2) two ends.
3. cylindrical heat exchanger as claimed in claim 1 is characterized in that: the water inlet (3a) of said upper end cover (3) is located and the delivery port (5a) of bottom end cover (5) locates to be equipped with temperature sensor (11).
4. cylindrical heat exchanger as claimed in claim 1 is characterized in that: the end face upper edge circumference at said burning cavity (1) two ends is evenly distributed with fixing hole (1b); The end face upper edge circumference of said upper end cover (3), bottom end cover (5) is evenly distributed with installing hole (2b); Installing hole (2b) is corresponding one by one with fixing hole (1b), and the screw that upper end cover (3), bottom end cover (5) utilization are contained in installing hole (2b) and the fixing hole (1b) is fixedly connected on the burning cavity (1).
5. cylindrical heat exchanger as claimed in claim 1 is characterized in that: said burning cavity (1) adopts aluminium to process.
6. cylindrical heat exchanger as claimed in claim 1 is characterized in that: said screw sheel (2) adopts high-temperature resistance plastice to process.
7. cylindrical heat exchanger as claimed in claim 1 is characterized in that: said heat insulation reinforcing sleeve (4) adopts stainless steel material to process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102781498A CN101922792B (en) | 2010-09-10 | 2010-09-10 | Cylindrical heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102781498A CN101922792B (en) | 2010-09-10 | 2010-09-10 | Cylindrical heat exchanger |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101922792A CN101922792A (en) | 2010-12-22 |
| CN101922792B true CN101922792B (en) | 2012-02-29 |
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ID=43337876
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102781498A Active CN101922792B (en) | 2010-09-10 | 2010-09-10 | Cylindrical heat exchanger |
Country Status (1)
| Country | Link |
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| CN (1) | CN101922792B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104110858B (en) * | 2013-07-24 | 2017-10-27 | 芜湖美的厨卫电器制造有限公司 | For the housing unit of water heater and the water heater with it |
| CN110832257B (en) * | 2017-07-07 | 2021-11-05 | 贝卡尔特燃烧技术股份有限公司 | Cast segment for segmented heat exchanger |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1005211B (en) * | 1985-07-08 | 1989-09-20 | 韦巴斯托沃克W·贝勒有限公司 | Water heater |
| FR2655134B1 (en) * | 1989-11-24 | 1992-02-14 | Geminox Sa | HEATER BOILER WITH HEAT FLUID. |
| JP3368773B2 (en) * | 1996-11-08 | 2003-01-20 | 松下電器産業株式会社 | Heat exchanger |
| EP0905456A3 (en) * | 1997-09-27 | 2001-04-11 | VIESSMANN WERKE GmbH & CO. | Three-pass boiler |
| CN201072307Y (en) * | 2006-12-06 | 2008-06-11 | 广州迪森家用锅炉制造有限公司 | Cylinder type condensing heat converter |
| CN201764660U (en) * | 2010-09-10 | 2011-03-16 | 无锡锡州机械有限公司 | Cylindrical heat exchanger |
-
2010
- 2010-09-10 CN CN2010102781498A patent/CN101922792B/en active Active
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| CN101922792A (en) | 2010-12-22 |
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