CN202145107U - Elliptical tube air-to-air cooling heat exchanger - Google Patents
Elliptical tube air-to-air cooling heat exchanger Download PDFInfo
- Publication number
- CN202145107U CN202145107U CN201120150485U CN201120150485U CN202145107U CN 202145107 U CN202145107 U CN 202145107U CN 201120150485 U CN201120150485 U CN 201120150485U CN 201120150485 U CN201120150485 U CN 201120150485U CN 202145107 U CN202145107 U CN 202145107U
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- heat exchanger
- elliptical
- heat exchange
- tube
- elliptical tube
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Abstract
The utility model relates to an elliptical tube air-to-air cooling heat exchanger, comprising a box body formed by a side edge plate, a cover plate, an end plate provided with an elliptical hole, and a bottom plate, the internal of the box body is provided with a pass partition plate with an elliptical hole, elliptical heat exchange tubes are inserted in elliptical holes of the end plate and the partition plate. The elliptical tube air-to-air cooling heat exchanger is advantaged by good compactness, good heat exchange performance, reduction of tube outer gas flow resistance, increase of effective heat exchange area of heat exchange tubes, compact structure, high convection heat exchange coefficient, and capability of reducing flow resistance loss at the external side of the tubes, increasing effective utilization rate of heat exchange area, reducing quantity of heating and heat exchange tubes, and effectively saving cost.
Description
Technical field
The utility model relates to the absolutely empty cool-heat-exchanger of a kind of elliptical tube.
Background technology
In the existing absolutely empty cold design, what generally adopt is round tube.The main effect of heat exchanger is in order to take away the heat of the on-stream generation of plant equipment.Because heat exchanger tube is connected the technology limit value with end plate; Adopt circular cooling tube at present; Exist structural volume huge in actual use; It is big to manage outer gas flow drag losses, and the shared long-pending proportion of tube surface in the unfavorable district of heat exchange that lee face forms is bigger, thus cause hollow cooler reduction the heat exchange effect of heat exchanger.
Summary of the invention
It is good that the technical problem that the utility model will solve provides a kind of compactedness, and the absolutely empty cool-heat-exchanger of the elliptical tube that heat exchange performance is good, the utility model have reduced the outer gas flow resistance of pipe, increases the effective heat exchange area of heat exchanger tube; Both had compact conformation, convection transfer rate is high, can reduce to manage the fluid resistance losses in the outside again, increases the effective rate of utilization of heat exchange area, but also can reduce the quantity that adds heat exchanger tube, can effectively practice thrift cost.
The content of the utility model is to comprise the casing that is made up of side board, cover plate, the end plate that has slotted eye and base plate; Said box house is provided with the pass partition that has slotted eye, and the slotted eye cross-under of said end plate and pass partition has oval heat exchanger tube.
Said box inside is provided with deep bead; The structure of said oval heat exchanger tube is: major axis a satisfies 1＜a/b≤3 with the ratio of minor axis b; Elliptical tube wall thickness δ satisfies 0.5≤δ≤1.5; Elliptical tube major axis and interior wind wind direction design angle α satisfy 0 °≤α≤60 °, the oval heat exchanger tube smallest cross-sectional size c of adjacent two rows with ratio 0.5≤c/d≤0.7 of arranging minimum range d between the elliptical tube.
The beneficial effect of the utility model is; Oval heat exchanger tube of the present invention and end plate adopt bloated or bonding mode is combined closely; Thereby interior wind and exogenous wind are separated, and the pipe heat converter structure that has overcome existing existence is bulky, and it is big to manage outer gas flow drag losses; The shared long-pending proportion of tube surface in the unfavorable district of heat exchange that lee face forms is bigger, thus cause hollow cooler reduction the heat exchange effect of heat exchanger.Distance between the two-layer pipe is optimized, the wind path the aisle spare approaching and windward side so that its effective channel cross-section is tried one's best.Increase deep bead at box inside, guarantee that the outer gas of pipe evenly flows through heat exchanger tube.Take at adjacent two row elliptical tube smallest cross-sectional size c and with the design of arranging the ratio c/d ≈ 0.6 of minimum range d between the elliptical tube; To guarantee evenly flowing of the outer gas of pipe; Simultaneously on box side, set up the lath that keeps out the wind, guarantee not occur managing the situation on the short out road of exogenous wind.
In order to realize reducing to manage outer gas flow drag losses; Take the design of the 0 °≤α of angle≤60 ° of gas flow direction outside oval heat exchanger tube major axis and pipe; Simultaneously flow resistance increases too much in the pipe, the design of 1＜a/b≤3 that the ratio of the major axis of elliptical tube and minor axis adopts.
The present invention compares the beneficial effect that prior art produces:
(I) strengthens the overlapping local of adjacent two row's heat exchanger tubes, and structure is compact more, can reduce heat exchanger volume, saves the space;
(II) oval heat exchanger tube has fairshaped profile, can effectively reduce the outer gas flow resistance of pipe;
(III) oval heat exchanger tube can make the outer coefficient of heat transfer of pipe in the pipe more approaching after major and minor axis is optimized design, and that improves heat exchanger tube effectively utilizes area;
(IV) oval heat exchanger tube has under the identical girth situation with circular heat exchanger tube, and turbulent flow is stronger, can effectively improve overall convection transfer rate.
The present invention is applicable to the absolutely empty formula heat exchanger that various plant equipment are used.
Description of drawings
Fig. 1 is the structural representation of the utility model;
Fig. 2 is the elliptical tube structural representation of the utility model.
In the drawings, 1 side board, 2 cover plates, 3 deep beads, 4 oval heat exchanger tubes, 5 pass partitions, 6 base plates, 7 end plates.
The specific embodiment
Shown in accompanying drawing 1-2; The utility model comprises the casing that is made up of side board 1, cover plate 2, the end plate 7 that has slotted eye and base plate 6; Said box house is provided with the pass partition 5 that has slotted eye, and the slotted eye cross-under of said end plate 7 and pass partition 5 has oval heat exchanger tube 4.
Said box inside is provided with deep bead 3; The structure of said oval heat exchanger tube 4 is: major axis a satisfies 1＜a/b≤3 with the ratio of minor axis b; Oval heat exchanger tube wall thickness δ satisfies 0.5≤δ≤1.5; The satisfied 0 °≤α of oval heat exchanger tube major axis and interior wind wind direction design angle α≤60 °, the adjacent two oval heat exchanger tube smallest cross-sectional size c of row and ratio 0.5≤c/d≤0.7 of arranging minimum range d between the elliptical tube together.
Operation principle of the present invention, installation and the course of work are: end plate and dividing plate are gone out oval-shaped hole with the special mould of going out by design drawing; Then end plate, dividing plate, side board and cover plate are welded the formation casing.Then elliptical tube is passed pore; Form tube bank, with metal binding agent or special-purpose expanded joint instrument, perhaps under low temperature condition, use metal binding agent at last; Perhaps when temperature is higher than the metal binding agent operating temperature, adopt the mode of expanded joint, elliptical tube and end plate are fitted tightly together.
Claims (3)
1. absolutely empty cool-heat-exchanger of elliptical tube; It is characterized in that comprising the casing that constitutes by side board, cover plate, the end plate that has slotted eye and base plate; Said box house is provided with the pass partition that has slotted eye, and the slotted eye cross-under of said end plate and pass partition has oval heat exchanger tube.
2. the absolutely empty cool-heat-exchanger of elliptical tube according to claim 1 is characterized in that said box inside is provided with deep bead.
3. the absolutely empty cool-heat-exchanger of elliptical tube according to claim 1; The structure that it is characterized in that said oval heat exchanger tube is: major axis a satisfies 1＜a/b≤3 with the ratio of minor axis b; Elliptical tube wall thickness δ satisfies 0.5≤δ≤1.5; Elliptical tube major axis and interior wind wind direction design angle α satisfy 0 °≤α≤60 °, the oval heat exchanger tube smallest cross-sectional size c of adjacent two rows with ratio 0.5≤c/d≤0.7 of arranging minimum range d between the elliptical tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120150485U CN202145107U (en) | 2011-05-12 | 2011-05-12 | Elliptical tube air-to-air cooling heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120150485U CN202145107U (en) | 2011-05-12 | 2011-05-12 | Elliptical tube air-to-air cooling heat exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202145107U true CN202145107U (en) | 2012-02-15 |
Family
ID=45581038
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120150485U Expired - Fee Related CN202145107U (en) | 2011-05-12 | 2011-05-12 | Elliptical tube air-to-air cooling heat exchanger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202145107U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109595044A (en) * | 2018-11-29 | 2019-04-09 | 浙江海洋大学 | A kind of marine main engine waste gas residual heat lighting device |
| CN112297824A (en) * | 2020-09-16 | 2021-02-02 | 传孚科技（厦门）有限公司 | Pneumatic system and control method thereof |
-
2011
- 2011-05-12 CN CN201120150485U patent/CN202145107U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109595044A (en) * | 2018-11-29 | 2019-04-09 | 浙江海洋大学 | A kind of marine main engine waste gas residual heat lighting device |
| CN109595044B (en) * | 2018-11-29 | 2022-03-08 | 浙江海洋大学 | Marine main engine waste gas waste heat lighting device |
| CN112297824A (en) * | 2020-09-16 | 2021-02-02 | 传孚科技（厦门）有限公司 | Pneumatic system and control method thereof |
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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 |
Granted publication date: 20120215 Termination date: 20170512 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |