CN2168196Y - Top-tilting, vertical, wet-vertical air-cooling device with homogeneous temp. difference field - Google Patents
Top-tilting, vertical, wet-vertical air-cooling device with homogeneous temp. difference field Download PDFInfo
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- CN2168196Y CN2168196Y CN93216443U CN93216443U CN2168196Y CN 2168196 Y CN2168196 Y CN 2168196Y CN 93216443 U CN93216443 U CN 93216443U CN 93216443 U CN93216443 U CN 93216443U CN 2168196 Y CN2168196 Y CN 2168196Y
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- 238000001816 cooling Methods 0.000 title abstract description 4
- 239000012530 fluid Substances 0.000 claims abstract description 42
- 239000007788 liquid Substances 0.000 claims 1
- 238000012546 transfer Methods 0.000 abstract description 4
- 238000011160 research Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 6
- 238000013461 design Methods 0.000 description 3
- 238000013459 approach Methods 0.000 description 2
- 210000001520 comb Anatomy 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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Abstract
The utility model relates to a top-tilting, vertical, or wet-vertical air-cooling device with homogeneous temperature difference field, according to the 'homogeneous temperature difference field principle' suggested by the many years research of the designer. The flow structure of an air-cooling device carries out minor change to make the high temperature hot fluid in pipe inpour from the high temperature cold fluid position outside the pipe and to make the low temperature hot fluid in pipe inpour from the low temperature cold fluid position outside the pipe. For the signal-pipe and double-pipe pass situations, the spacing distribution of the finned pipe fin is changed to achieve the effect of improving the homogeneity of temperature difference field for the heat exchanger to improve the heat transfer efficiency. The 15-30% of heat transfer area is saved in the same heat transfer quantity.
Description
The utility model relates to the optimal design of air cooler, refers more particularly to the optimal design and the manufacturing of oblique top formula, vertical and wet vertical air cooler.
Air cooler is widely used in oil plant, in petrochemical plant, power industry and the refrigerating industry.For a long time, the expert of scientific research and design department, scholar improve the performance of air cooler by various means, and its main means have two kinds, and its pair of pipes outer air side is with the exothermic coefficient that strengthens air side with the method for fin; It is two for falling with the pressure that improves outer exothermic coefficient of pipe and minimizing extratubal fluid with pipe replacement garden, ellipse garden pipe.
The purpose of this utility model is: at how improving at present the problem that exists in the heat exchanger effectiveness, and according to the present inventor through years of researches, a kind of new heat exchanger strengthened heat exchange method---temperature field uniformity principle has been proposed, and the uniform oblique top formula in a kind of temperature difference of innovation and creation field, vertical and wet vertical air cooler.Said " temperature field uniformity principle " its to the effect that: number of transfer units and thermal capacity stream than identical condition under, the temperature difference field of cold fluid and hot fluid is even more, then heat exchanger efficiency is high more.Utilize this principle structurally to do less change, change it and flow and arrange, make its temperature difference field even, and usefulness obviously improves present oblique top formula, vertical, wet vertical air cooler.
The basic point of the invention is: foundation " temperature field uniformity principle " is to oblique top formula, vertical, wet vertical air cooler, under the situation of two tube sides, every tube side has two-layer tube bank, then 1 layer of tube bank and 3 layers of tube bank are connected in series, 2 layers of tube bank and 4 layers of tube bank are connected in series or hot fluid flows into 1 by bobbin carriage 5,2 layers of tube bank flow into 3,4 layers of tube bank by bobbin carriage 6 again, flow out then.If every tube side is the multilayer tube bank, then analogize in turn, promptly the hot fluid that temperature is high in the pipe high cold fluid (air) of temperature outside pipe is located to flow into, and the hot fluid that temperature is low in the pipe low cold fluid (air) of temperature outside pipe is located to flow into.And change the fin distribution density of its finned tube, make temperature difference field more even.
Accompanying drawing
Fig. 1 .abc is present oblique top formula, vertical, wet vertical air cooler generalized section.
The improved oblique top formula of Fig. 2 .abc, vertical, wet vertical air cooler generalized section.
Fig. 3. be a unit of Fig. 2 abc air cooler A-A section fluidal texture schematic diagram.
Fig. 4. the uniform oblique top formula in temperature difference field, vertical, wet vertical air cooler fluidal texture schematic diagram.
The uniform oblique top formula in Fig. 5 .abc temperature difference field, vertical, wet vertical air cooler sectional schematic diagram
Fig. 6. the fin density distribution schematic diagram of the oblique top formula of two tube sides, vertical, wet vertical air cooler finned tube.
Fig. 7. the fin density distribution schematic diagram of the oblique top formula of single tube journey, vertical, wet vertical air cooler finned tube.
Below in conjunction with the description of drawings structure of the present utility model and the arrangement of flowing thereof.
Oblique top formula, structure vertical, wet vertical air cooler reach to flow and arrange its sectional schematic diagram at present, as Fig. 1 a, and b, (Fig. 1 a is an oblique top formula air cooler, and Fig. 1 b is vertical air-cooled device, and Fig. 1 c is a wet vertical air cooler) shown in the c.Along pipe row number at least 4 rows of air-flow direction, this figure has only drawn 2 combs for the sake of simplicity, and this figure is two tube sides, to two tube side air coolers, they all are that tube fluid goes out under enterprising, as Fig. 1 a, b, in " X " expression fluid inflow pipe, paper '. ' expression tube fluid flows out among the c.Actual number of tube passes can surpass two tube sides, and its common feature of above-mentioned air cooler is: the cold and hot fluid temperature approach of first tube side will can be analogized during the multitube journey much larger than the cold fluid and hot fluid temperature approach of second tube side.The temperature difference field of this heat exchanger is very uneven, thereby heat exchanger efficiency is low.
The utility model changes oblique top formula, vertical, wet vertical air cooler fluidal texture into as Fig. 2 a, b, (oblique top formula air cooler sectional drawing represents that with Fig. 2 a vertical air-cooled device sectional drawing is with shown in Fig. 2 b, and the wet vertical air cooler sectional drawing is with shown in Fig. 2 c) shown in the c.Hot fluid in the pipe is flowed in the temperature end of air, shown in " X ", is that cold junction flows out in the low-temperature end of air, shown in ". ".Fig. 3 is seen in its fluidal texture arrangement, and this figure is that above-mentioned three kinds of air coolers are got an one unit A-A generalized section.Type of thermal communication is crossed bobbin carriage 5 and is flowed into 1,2 layer of tube bank, flows into 3,4 layers of tube bank by bobbin carriage 6 again, flows out then, and the mobile structure arrangement in other unit is so identical.This fluidal texture arrangement can make the temperature difference of air cooler cold fluid and hot fluid obviously even, and heat exchanger efficiency has also improved.
In order further to improve the uniformity of above-mentioned three kinds of air cooler temperature difference fields, the fluidal texture of Fig. 3 is changed into shown in Figure 4, this figure is two tube sides, and every tube side is two-layer tube bank, i.e. and 1 layer of tube bank and 3 layers of tube bank are connected in series, and 2 layers of tube bank and 4 layers of tube bank are connected in series.For every tube side is the multilayer tube bank, analogizes in turn.The hot fluid that is high temperature is in the temperature end inflow pipe of air, and then turn around again and to flow into from the low-temperature end of air, making the interior hot fluid flow of pipe is equidirectional, the hot fluid that temperature is high in the pipe air place that temperature is high outside pipe flows in other words, the hot fluid that temperature is low in the pipe air place that temperature is low outside pipe flows into sees Fig. 5, this mobile arrangement makes cold fluid and hot fluid temperature difference field more even, and heat exchanger efficiency is higher.
To the above-mentioned air cooler of two tube sides, can change the density of fin on the finned tube improves and improves the uniformity of temperature difference field, as Fig. 6, the fin that is one deck finned tube is along managing interior hot fluid flow direction by dredging to close distribution, the fin of 4 layers of finned tube is distributed to dredging by close along hot fluid flow direction in the pipe, the fin of middle 2,3 layers of finned tube is evenly distributed.In order to make it easily manufactured, adopt two kinds of fin spacings for the fin distribution of 1,2 layer of finned tube.
For the oblique top formula of single tube journey, vertical, wet vertical air cooler, distribute with the fin density that changes finned tube and to improve the uniformity of temperature difference field, as shown in Figure 7, finned tube is divided into upper and lower two parts, and extratubal fluid flows from the top down.Then the fin of first half fin pipe along hot fluid flow direction in the pipe by close to dredging, the fin of Lower Half fin pipe along hot fluid flow direction in the pipe by thin to close distribution.
Foundation " temperature field uniformity principle " is by above-mentioned improvement structure, after arrangement of flowing and fin density distribute, the uniform oblique top formula in the temperature difference field that institute's innovation and creation are come out, vertical, wet vertical air cooler, under the condition of transmitting identical heat exchange amount, heat exchange area can reduce 15-30%.Structure is only done less change, and heat exchanger efficiency significantly improves.
Claims (5)
1, a kind of oblique top formula, vertical, wet vertical air cooler, it is characterized in that it is the uniform oblique top formula in temperature difference field, vertical, wet vertical air cooler, the every tube side of two tube sides there is the two-layer tube bank of sticking up, then the 1st layer of fin tube bank is connected in series with the 3rd layer of fin tube bank, the 2nd layer of fin tube bank is connected in series with the 4th layer of fin tube bank, or hot fluid flows into 1 by bobbin carriage 5,2 layers of fin tube bank, flow into 3 by bobbin carriage 6 again, 4 layers of fin tube bank are flowed out then, and every tube side is then analogized in turn for the tube bank of multilayer fin, promptly the hot fluid that temperature is high in the pipe air place that temperature is high outside pipe flows into, and the hot fluid that temperature is low in the pipe air place that temperature is low outside pipe flows into.
2, according to the said oblique top formula of claim 1, vertical, wet vertical air cooler, it is characterized in that changing the fin distribution density of its fin pipe, make temperature difference field more even, to two tube sides, every tube side has two-layer fin tube bank, and then by dredging to close, the fin of 4 layers of fin pipe is distributed to dredging by close along hot fluid flow direction in the pipe fin of one deck fin pipe along hot fluid flow direction in the pipe, middle 2,3 layers of fin pipe fin are evenly distributed.
3, according to claim 1 or 2 said oblique top formulas, vertical, wet vertical air cooler, the fin that it is characterized in that said 1,2 layer of finned tube distributes and adopts two kinds of fin spacings.
4, according to the said oblique top formula of claim 1, vertical, wet vertical air cooler, it is characterized in that the oblique top formula to the single tube journey, vertical, wet vertical air cooler, managing outer liquid from up to down flows, the fin of first half fin pipe along hot fluid flow direction in the pipe by close to dredging, the fin of Lower Half fin pipe along hot fluid flow direction in the pipe by thin to close distribution
5, according to the said oblique top formula of claim 1, vertical, wet vertical air cooler, it is characterized in that the oblique top formula to the single tube journey, vertical, wet vertical air cooler, extratubal fluid is bottom-up to flow, the fin of Lower Half fin pipe along hot fluid flow direction in the pipe by close to dredge distributing, the fin of first half fin pipe along hot fluid flow direction in the pipe by thin to close distribution.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN93216443U CN2168196Y (en) | 1993-06-24 | 1993-06-24 | Top-tilting, vertical, wet-vertical air-cooling device with homogeneous temp. difference field |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN93216443U CN2168196Y (en) | 1993-06-24 | 1993-06-24 | Top-tilting, vertical, wet-vertical air-cooling device with homogeneous temp. difference field |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2168196Y true CN2168196Y (en) | 1994-06-08 |
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ID=33796626
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN93216443U Expired - Fee Related CN2168196Y (en) | 1993-06-24 | 1993-06-24 | Top-tilting, vertical, wet-vertical air-cooling device with homogeneous temp. difference field |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2168196Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110207256A (en) * | 2019-06-27 | 2019-09-06 | 广东美的暖通设备有限公司 | Air conditioner indoor unit and air-conditioning |
-
1993
- 1993-06-24 CN CN93216443U patent/CN2168196Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110207256A (en) * | 2019-06-27 | 2019-09-06 | 广东美的暖通设备有限公司 | Air conditioner indoor unit and air-conditioning |
| CN110207256B (en) * | 2019-06-27 | 2021-03-16 | 广东美的暖通设备有限公司 | Air conditioner indoor unit and air conditioner |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |