CN201764660U - Cylindrical heat exchanger - Google Patents
Cylindrical heat exchanger Download PDFInfo
- Publication number
- CN201764660U CN201764660U CN2010205246842U CN201020524684U CN201764660U CN 201764660 U CN201764660 U CN 201764660U CN 2010205246842 U CN2010205246842 U CN 2010205246842U CN 201020524684 U CN201020524684 U CN 201020524684U CN 201764660 U CN201764660 U CN 201764660U
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- CN
- China
- Prior art keywords
- end cover
- burning cavity
- heat exchanger
- bottom end
- screw sheel
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- Expired - Lifetime
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- Instantaneous Water Boilers, Portable Hot-Water Supply Apparatuses, And Control Of Portable Hot-Water Supply Apparatuses (AREA)
Abstract
The utility model relates to a cylindrical heat exchanger, which comprises a combustion cavity, a spiral sleeve, an upper end cover and a lower end cover, wherein the combustion cavity is cylindrical and has an opening at both ends. Bar-shaped fins evenly distributed on the inner wall of the combustion cavity are parallel to the axis of the cylindrical combustion cavity, both ends of the bar-shaped fins extending to the openings at both ends of the combustion cavity. The spiral sleeve, having protruding spiral lines on the inner wall, is sleeved on the combustion cavity. The inner rim of the protruding spiral lines is tightly contacted with the external wall of the combustion cavity, and a spiral channel is formed between the external wall of the combustion cavity and the inner wall of the spiral sleeve. The upper end cover and the lower end cover, being cup-formed and having openings on end surfaces thereof, are sleeved on both ends of the combustion cavity and the spiral sleeve and are fixedly connected in a sealed manner. The upper end cover is provided with a water inlet communicated with one end of the spiral channel, and the lower end cover is provided with a water outlet communicated with the other end of the spiral channel. The cylindrical heat exchanger is delicate and reasonable in structure, convenient for maintaining and cleaning, long in service lifetime, high in heat efficiency, and is energy saving and durable as well.
Description
Technical field
The utility model 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 is of a great variety both at home and abroad, and it is widely used in the firing equipment system in places such as family, hotel, restaurant, hospital, office building.At present heat exchanger on the market 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.Heat exchanger is on the market pressed the fuel type branch at present, 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 the higher pursuit of people to heat exchanger, especially the standard to thermal conversion efficiency progressively improves, and the fuel combustion type heat exchanger has begun by traditional industrial 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 existing fuel combustion type heat exchanger, not too meets the requirement of family expenses heat exchanger to thermal conversion efficiency.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, provide a kind of structure ingenious rationally, be convenient to safeguard cleaning, long service life, thermal efficiency height, be energy-conservation durable again cylindrical heat exchanger.
The technical scheme that provides according to the utility model: a kind of cylindrical heat exchanger, it is characterized in that: it comprises burning cavity, screw sheel, upper end cover and bottom end cover, described 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 described 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; Described 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; Described upper end cover is provided with the water inlet that communicates with helical duct one end, and described bottom end cover is provided with the delivery port that communicates with the helical duct other end.
As further improvement of the utility model, the internal face of described upper end cover, bottom end cover is provided with circumferential interior sealed groove and outer seal groove; Seal by 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 by 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 utility model, be set with the heat insulation reinforcing sleeve of both ends open on the described 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 utility model, the delivery port place of the water inlet of described upper end cover and bottom end cover is equipped with temperature sensor.
As further improvement of the utility model, the end face upper edge circumference at described burning cavity two ends is evenly distributed with fixing hole; The end face upper edge circumference of described 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 utility model, described burning cavity adopts the aluminium of good heat conductivity to make.
As further improvement of the utility model, described screw sheel adopts high-temperature resistance plastice to make.
As further improvement of the utility model, described heat insulation reinforcing sleeve adopts stainless steel material to make.
The utility model compared with prior art, advantage is: structure is ingenious rationally, and combustion air air inflow abundance 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 utility model embodiment.
Fig. 2 is the front view of the utility model embodiment.
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
The utility model is described in further detail below in conjunction with concrete drawings and Examples.
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.
As Fig. 1 ~ shown in Figure 3, described 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 described 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.Described 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 described burning cavity 1 two ends is evenly distributed with fixing hole 1b; The end face upper edge circumference of described 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.Described upper end cover 3 is provided with the water inlet 3a that communicates with helical duct 10 1 ends, and described bottom end cover 5 is provided with the delivery port 5a that communicates with helical duct 10 other ends.
As Fig. 1 ~ shown in Figure 4, the internal face of described upper end cover 3, bottom end cover 5 is provided with circumferential interior sealed groove 6 and outer seal groove 8; Seal by 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 by 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.
As Fig. 1 ~ shown in Figure 4, in order to make the utility model firm and durable more, and improve heat-proof quality, be set with the heat insulation reinforcing sleeve 4 of both ends open on the described 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; 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 by 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 described 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 utility model.
The burning cavity 1 preferred aluminium of good heat conductivity that adopts in the utility model is made.The screw sheel 2 preferred high-temperature resistance plastices that adopt are made.The heat insulation reinforcing sleeve 4 preferred stainless steel materials that adopt are made.
The course of work of the present utility model and operation principle are as follows:
During work, fuel oil completing combustion in burning cavity 1, the strip fin 1a that the burned cavity 1 of heat that its burning produces is provided with is efficient fully to be absorbed, water enters in the helical duct 10 from the water inlet 3a on the upper end cover 3, and directly contact with the outer surface of burning cavity 1, 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 make, 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 utility model becomes cylindrical shape, and volume is little, and it is little to take up space.
Claims (8)
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), described 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 described 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; Described 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; Described upper end cover (3) is provided with the water inlet (3a) that communicates with helical duct (10) one ends, and described bottom end cover (5) is provided with the delivery port (5a) that communicates with helical duct (10) other end.
2. cylindrical heat exchanger as claimed in claim 1 is characterized in that: the internal face of described upper end cover (3), bottom end cover (5) is provided with circumferential interior sealed groove (6) and outer seal groove (8); Seal by 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 by 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, it is characterized in that: the heat insulation reinforcing sleeve (4) that is set with both ends open on the described 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.
4. cylindrical heat exchanger as claimed in claim 1 is characterized in that: the water inlet (3a) of described upper end cover (3) is located and the delivery port (5a) of bottom end cover (5) locates to be equipped with temperature sensor (11).
5. cylindrical heat exchanger as claimed in claim 1 is characterized in that: the end face upper edge circumference at described burning cavity (1) two ends is evenly distributed with fixing hole (1b); The end face upper edge circumference of described 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).
6. cylindrical heat exchanger as claimed in claim 1 is characterized in that: described burning cavity (1) adopts aluminium to make.
7. cylindrical heat exchanger as claimed in claim 1 is characterized in that: described screw sheel (2) adopts high-temperature resistance plastice to make.
8. cylindrical heat exchanger as claimed in claim 3 is characterized in that: described heat insulation reinforcing sleeve (4) adopts stainless steel material to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205246842U CN201764660U (en) | 2010-09-10 | 2010-09-10 | Cylindrical heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205246842U CN201764660U (en) | 2010-09-10 | 2010-09-10 | Cylindrical heat exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201764660U true CN201764660U (en) | 2011-03-16 |
Family
ID=43717268
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205246842U Expired - Lifetime CN201764660U (en) | 2010-09-10 | 2010-09-10 | Cylindrical heat exchanger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201764660U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101922792A (en) * | 2010-09-10 | 2010-12-22 | 无锡锡州机械有限公司 | Cylindrical heat exchanger |
-
2010
- 2010-09-10 CN CN2010205246842U patent/CN201764660U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101922792A (en) * | 2010-09-10 | 2010-12-22 | 无锡锡州机械有限公司 | Cylindrical heat exchanger |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20110316 Effective date of abandoning: 20120229 |