CN204514122U - Air cooling element and there is the air cooler of this air cooling element - Google Patents
Air cooling element and there is the air cooler of this air cooling element Download PDFInfo
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- CN204514122U CN204514122U CN201520197670.7U CN201520197670U CN204514122U CN 204514122 U CN204514122 U CN 204514122U CN 201520197670 U CN201520197670 U CN 201520197670U CN 204514122 U CN204514122 U CN 204514122U
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Abstract
The utility model provides a kind of air cooling element and has the air cooler of this air cooling element.This air cooling element comprises air cooling pipe, and air cooling pipe comprises multistage first duct section and multistage second pipe section, the diameter of the first duct section and the diameter of second pipe section unequal, and multistage first duct section is alternately connected with multistage second pipe section.Air cooling element of the present utility model and the air cooler with this air cooling element can suppress the fluid in air cooling pipe may occur laminar sublayer in flow process, and then prevent the formation of incrustation scale in air cooling pipe, thus improve the heat-transfer effect of air cooling pipe.
Description
Technical field
The utility model relates to technical field of heat exchange equipment, more specifically, relates to a kind of air cooling element and has the air cooler of this air cooling element.
Background technology
Have windy and a little arid, high temperature and drought, the Coal Chemical Engineering Project in the feature areas such as serious water shortage and high evaporation amount, usual employing open type circulated in countercurrent water tower cools the circulating backwater of 45 DEG C, its evaporation capacity, air-dry amount and saline sewage amount all will reach very large, for the Coal Chemical Engineering Project of an investment about 17,000,000,000 yuans, recirculated water consumption 99800 cubic metres/time, running time in year was by 8000 hours, evaporation capacity is by 1.6% of quantity of circulating water, its evaporation loss water yield is 1596.8 cubic metres/time, amounting to year loss amount is 1277.44 ten thousand steres, account for about 74% of project year water consumption (1714 ten thousand stere).Not only cause the huge waste of water resource, also can increase production cost simultaneously, strengthen saline sewage treating capacity and blowdown flow rate.
If adopt enclosed air cooling technique can realize the cooling of recirculated cooling water, not only can save a large amount of fresh water amount, greatly can also reduce process and the discharge of saline sewage simultaneously, there is good economic benefit and environmental benefit.Some domestic chemical enterprises carried out " air cooler being used for the test of circulating water ", but all failed because of its structural feature.
Adopt air cooler ripe at present to cool recirculated water, its air cooling pipe structure is the structure of the additional finned tube of straight line light pipe, and light pipe diameter is less, and this structure has the following disadvantages:
No matter recirculated water is laminar flow or turbulent flow at Bottomhole pressure, all can cause the fouling of air cooling pipe inwall, such that the heat-transfer effect of air cooler is poor, efficiency is low, and heat exchange area strengthens, and device fabrication cost increases;
The outside fin of dense planting of air cooling pipe and the protective baffle plate of periphery, make current air cooler that air-introduced machine or air blast all will be adopted to carry out forced ventilation, cause power consumption to strengthen, add production run cost;
In addition, air cooling in-tube fouling Posterior circle hydraulic pressure falls comparatively large, circulating pump head is increased, also makes the cooling cost of recirculated water improve further, the inside and outside wall fouling of air cooling pipe or dust stratification, capital makes heat transfer effect reduce, and needs often to overhaul cleaning, causes maintenance, maintenance cost increase, because its draining is unclean, winter operation easily causes air cooling pipe bursting by freezing often, and phase equipment life shortens greatly, causes investment to increase.
Utility model content
The utility model aims to provide a kind of air cooling element and has the air cooler of this air cooling element, to solve the problem of the easy fouling of prior art hollow cold pipe.
For solving the problems of the technologies described above, according to an aspect of the present utility model, provide a kind of air cooling element, this air cooling element comprises air cooling pipe, air cooling pipe comprises multistage first duct section and multistage second pipe section, the diameter of the first duct section and the diameter of second pipe section unequal, and multistage first duct section is alternately connected with multistage second pipe section.
Further, the first duct section and second pipe section are straight length.
Further, the link position place of the first duct section and second pipe section is provided with the pressure drop section of slowing down.
Further, the diameter of the first duct section is greater than the diameter of second pipe section; The pressure drop section of slowing down is in funnel-shaped structure, and the expansion port of funnel-shaped structure is connected with the first duct section, and the retract port of funnel-shaped structure is connected with second pipe section.
Further, the central axis of the first duct section and second pipe section is located on the same line.
Further, air cooling element also comprises at least one piece of fin, and fin is arranged on the periphery of air cooling pipe.
Further, fin is the plate-like fin being set in air cooling pipe periphery.
According to another utility model of the present utility model, provide a kind of air cooler, comprise air cooling element, air cooling element is above-mentioned air cooling element.
Application the technical solution of the utility model, because air cooling pipe is alternately formed by connecting by unequal first duct section of diameter and second pipe section, therefore, when fluid flows through from air cooling pipe, air cooling pipe can make the fluid in pipe present turbulent condition, suppress the fluid in air cooling pipe may occur laminar sublayer in flow process, and then prevent the formation of incrustation scale in air cooling pipe, thus improve the heat-transfer effect of air cooling pipe.
Accompanying drawing explanation
The accompanying drawing forming a application's part is used to provide further understanding of the present utility model, and schematic description and description of the present utility model, for explaining the utility model, is not formed improper restriction of the present utility model.In the accompanying drawings:
Fig. 1 diagrammatically illustrates the front view of the air cooling element in the utility model.
Description of reference numerals: 10, air cooling pipe; 11, the first duct section; 12, second pipe section; 13, the pressure drop section of slowing down; 20, fin.
Detailed description of the invention
Below in conjunction with accompanying drawing, embodiment of the present utility model is described in detail, but the multitude of different ways that the utility model can be defined by the claims and cover is implemented.
Shown in Figure 1, according to embodiment of the present utility model, provide a kind of air cooling element.This air cooling element comprises air cooling pipe 10, air cooling pipe 10 comprises multistage first duct section 11 and multistage second pipe section 12, and the diameter of the first duct section 11 and the diameter of second pipe section 12 unequal, and multistage first duct section 11 is alternately connected with multistage second pipe section 12.Because air cooling pipe 10 is alternately formed by connecting by unequal first duct section 11 of diameter and second pipe section 12, therefore, when fluid flows through from air cooling pipe 10, air cooling pipe 10 can make the fluid of Guan Leng present turbulent condition, suppress the fluid in air cooling pipe 10 may occur laminar sublayer in flow process, and then prevent the formation of incrustation scale in air cooling pipe 10, thus improve the heat-transfer effect of air cooling pipe 10.
In the present embodiment, the first duct section 11 and second pipe section 12 are straight length, and structure is simple, are convenient to realize.In other embodiments of the present utility model, the first duct section 11 and second pipe section 12 can also be set to bend pipe structure according to specific circumstances and be connected with other air cooling elements.In use procedure, air cooling pipe 10 can be formed by connecting by the conduit assembly of 3 meters, 4.5 meters and 6 meters, make monolithic or biplate air cooler structure, this air cooler is lightweight, volume is little, heat exchange efficiency is high, can hang on below framework, or be arranged in platform/ground gap, and flexible and convenient to use, project floor space can not be increased.
Change at junction pressure at the first duct section 11 and second pipe section 12 to slow down air cooling pipe 10 internal flow, first duct section 11 of the present embodiment is provided with the pressure drop section of slowing down 13 with the link position place of second pipe section 12, 1 to 2 grade is increased than the caliber of common air cooler by arranging the pressure drop section of slowing down 13 air cooling element caliber, tube fluid flow velocity is dropped to below 1.0 meter per seconds, the change in pressure drop of the fluid in air cooling pipe 10 can be reduced, the transfer rate of air cooling pipe 10 inner fluid is maintained while preventing air cooling pipe 10 fouling, ensure the radiating efficiency of air cooling pipe 10.
Preferably, the diameter of the first duct section 11 is greater than the diameter of second pipe section 12, the pressure drop section of slowing down 13 is in funnel-shaped structure, the first duct section 11 that the expansion port of this funnel-shaped structure is larger with diameter is connected, the second pipe section 12 that the retract port of funnel-shaped structure is less with diameter is connected, when the fluid in air cooling pipe 10 flows to funnel-shaped structure, can the pressure drop of slowing down fluid, avoid fluid-pressure drop excessive and affect the normal operation of fluid, can also prevent change in pressure drop from itself causing wearing and tearing to air cooling pipe 10, improve the service life of air cooling element.Meanwhile, the diameter of the cross section of funnel-shaped structure constantly changes, and makes the flow velocity size and Orientation of air cooling pipe inner fluid all changes, and then tube fluid is presented " turbulent condition ", thus destroys the laminar sublayer that may occur in pipe.In other embodiments of the present utility model, the pressure drop section of slowing down 13 can also be arranged to transition structure, such as arc line type tubular structure etc.
Preferably, the first duct section 11 is located on the same line with the central axis of second pipe section 12, is convenient to the assembling of air cooling pipe 10, flexible and convenient to use; Maintenance, maintenance cost is low.
Refer again to shown in Fig. 1, air cooling element in the present embodiment also comprises at least one piece of fin 20, fin 20 is arranged on the periphery of air cooling pipe 10, the setting of this fin 20 can increase air cooling element and extraneous contact area, air in swap-in fully can be contacted with this air cooling element, improve the heat transfer effect of air cooling element.When arranging polylith fin 20, the spacing between fin 20 will arrange larger, avoids the periphery deposition dust of air cooling element; Air cooling pipe 10 inside keep turbulent condition, less scaling, good effect of heat exchange, service life and the time limit long, checking maintenance cost is low.
Preferably, fin 20, for being set in the plate-like fin of air cooling pipe 10 periphery, makes fin 20 in plate-like fin, can not only increase air cooling element and extraneous contact area, can also improve fin 20 and air cooling pipe 10 connective stability.More preferably, the plate-like fin of the present embodiment is discoid fin, and the structure of discoid fin can effectively prevent dust from depositing in fin edges, improves the heat transfer effect of air cooling element further.
According to another embodiment of the present utility model, provide a kind of air cooler, this air cooler comprises air cooling element, and this air cooling air cooling element is the air cooling element in above-described embodiment.
" boundary layer theory " in the utility model applied fluid mechanics, on the one hand, adopts reducer pipe to replace common light pipe, and suitably adds Large Diameter Pipeline; Air cooling pipe fluid circulating so can be made can also to reach " turbulent condition " when flow velocity is lower, destroy the laminar sublayer of inside pipe wall, make inner tubal wall keep clean, non-scaling, the heat of interior pipe fluid can " transmit " fast; On the other hand, suitably strengthen plate-like spacing of fin, surrounding air and recirculated water can " be speeded away " after the heat exchange of air cooling element-external, thus reach the object improving heat transfer effect.According to air cooling element of the present utility model and the air cooler with this air cooling element, maximum economic benefit and environmental benefit can be obtained.
The foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, for a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (8)
1. an air cooling element, comprise air cooling pipe (10), it is characterized in that, described air cooling pipe (10) comprises multistage first duct section (11) and multistage second pipe section (12), the diameter of described first duct section (11) and the diameter of described second pipe section (12) unequal, and described multistage first duct section (11) is alternately connected with described multistage second pipe section (12).
2. air cooling element according to claim 1, is characterized in that, described first duct section (11) and described second pipe section (12) are straight length.
3. air cooling element according to claim 1, is characterized in that, described first duct section (11) is provided with the pressure drop section of slowing down (13) with the link position place of described second pipe section (12).
4. air cooling element according to claim 3, is characterized in that, the diameter of described first duct section (11) is greater than the diameter of described second pipe section (12);
The described pressure drop section of slowing down (13) is in funnel-shaped structure, and the expansion port of described funnel-shaped structure is connected with described first duct section (11), and the retract port of described funnel-shaped structure is connected with described second pipe section (12).
5. air cooling element according to claim 1, is characterized in that, described first duct section (11) is located on the same line with the central axis of described second pipe section (12).
6. air cooling element according to any one of claim 1 to 5, is characterized in that, described air cooling element also comprises at least one piece of fin (20), and described fin (20) is arranged on the periphery of described air cooling pipe (10).
7. air cooling element according to claim 6, is characterized in that, described fin (20) is for being set in the plate-like fin of described air cooling pipe (10) periphery.
8. an air cooler, comprises air cooling element, it is characterized in that, the air cooling element of described air cooling element according to any one of claim 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520197670.7U CN204514122U (en) | 2015-04-02 | 2015-04-02 | Air cooling element and there is the air cooler of this air cooling element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520197670.7U CN204514122U (en) | 2015-04-02 | 2015-04-02 | Air cooling element and there is the air cooler of this air cooling element |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204514122U true CN204514122U (en) | 2015-07-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520197670.7U Active CN204514122U (en) | 2015-04-02 | 2015-04-02 | Air cooling element and there is the air cooler of this air cooling element |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204514122U (en) |
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2015
- 2015-04-02 CN CN201520197670.7U patent/CN204514122U/en active Active
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