CN205209323U - Adopt aluminium alloy plate wing formula heat exchanger structures of high temperature resistant special -shaped strip of paper used for sealing - Google Patents
Adopt aluminium alloy plate wing formula heat exchanger structures of high temperature resistant special -shaped strip of paper used for sealing Download PDFInfo
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- CN205209323U CN205209323U CN201521027516.1U CN201521027516U CN205209323U CN 205209323 U CN205209323 U CN 205209323U CN 201521027516 U CN201521027516 U CN 201521027516U CN 205209323 U CN205209323 U CN 205209323U
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Abstract
The utility model discloses an adopt aluminium alloy plate wing formula heat exchanger structures of high temperature resistant special -shaped strip of paper used for sealing belongs to the machinery processing technology field, including hot fluid passage vortex fin, hot fluid passage strip of paper used for sealing, baffle, cold fluid passage strip of paper used for sealing and cold fluid passage vortex fin, hot fluid passage vortex fin is arranged for the multilayer is alternate with cold fluid passage vortex fin, is separated through the baffle respectively between each layer, cold fluid passage strip of paper used for sealing is located cold fluid passage vortex fin both sides, and hot fluid passage strip of paper used for sealing is located hot fluid passage vortex fin both sides, and hot fluid passage strip of paper used for sealing medial surface is " W " shape or " mountain " font swells. This technical scheme passes through the strip of paper used for sealing sectional area and evenly changes for in the high low temperature working process of vacuum brazing or radiator, thermal current density along with the sectional area can be even the change, effectually reduce hot stress concentration, transfer to the safe position of structure with the biggest stress concentration point, thereby improve the reliable degree of radiator core and the life of radiator.
Description
Technical field
The utility model belongs to Machining Technology field, relates to a kind of welding procedure, especially relates to a kind of aluminium alloy plate fin formula heat exchanger structure adopting high temperature resistant special-shaped strip of paper used for sealing.
Background technology
Traditional zone of heat liberation seal structure as shown in Figure 1 and Figure 2.The manufacturing process of aluminium alloy plate fin formula heat exchanger core mainly contains the soldering of controlled atmosphere formula and vacuum brazing, carry out, and the duration is longer under two kinds of solderings high temperature all more than 580 DEG C.
In heat transfer process, the heat-conducting section of heat flow density and radiator core body amasss size and is inversely proportional to, and at the outer surface of radiator core body, because sectional area is comparatively large, heat flow density is less; For the radiator core body adopting traditional strip of paper used for sealing, heat conduction is to critical localisation, occurring area sudden change between strip of paper used for sealing and dividing plate, now traditional heat flow density sharply increases, as shown in Figure 10, now huge thermal stress is produced at strip of paper used for sealing and dividing plate lap position, as shown in figure 12, in this case, very easily there is the situation of dividing plate burn through and fracture in Process of Vacuum Brazing.
Add the constraint of each part self structure of Aluminium Radiator, even if not by burn-through, remain larger soldering stress in these positions, larger hidden danger is also stayed to the normal use of radiator in the future.
Aluminium alloy plate fin heat exchanger also can be applied to some worst hot case, such as oil-free air compressor is when carrying out work, the Compressed Gas temperature of discharging, often higher than 260 DEG C, by the cooling of aluminium alloy plate fin radiator, can drop to only higher than environment temperature 10-20 DEG C.Similar operating mode also has engine intercooler, for its supporting radiator also needs gas temperature to be cooled to higher than environment temperature 20-30 DEG C from more than 200 DEG C.Under this type of operating mode, due to the restriction of aluminium alloy own material properties, and the binding character of each design of part of traditional heat sinks, and in the residual stress of each part lap position of solder joint after vacuum brazing, cause radiator to have larger hidden danger of quality, safety coefficient reduces greatly.
Therefore, how to reduce soldering and participate in stress, heat radiation device reliability is problem demanding prompt solution in industry.
Utility model content
In order to solve the problem, the utility model provides a kind of aluminium alloy plate fin formula heat exchanger structure adopting high temperature resistant special-shaped strip of paper used for sealing, thus reach and effectively reduce thermal stress and concentrate, effectively realize the anti-corrode of radiator core body soldering and improve the effect in radiator service life.
The utility model is achieved by following technical solution.
A kind of aluminium alloy plate fin formula heat exchanger structure adopting high temperature resistant special-shaped strip of paper used for sealing, comprise zone of heat liberation flow-disturbing fin, zone of heat liberation strip of paper used for sealing, dividing plate, cold fluid pass strip of paper used for sealing and cold fluid pass flow-disturbing fin, described zone of heat liberation flow-disturbing fin and cold fluid pass flow-disturbing fin are arrange between multi-layer phase, separate between each layer respectively by dividing plate; Described cold fluid pass strip of paper used for sealing is positioned at cold fluid pass flow-disturbing fin both sides, and described zone of heat liberation strip of paper used for sealing is positioned at zone of heat liberation flow-disturbing fin both sides, and described zone of heat liberation strip of paper used for sealing medial surface is " W " shape or " mountain " font projection.
In " W " shape of described zone of heat liberation strip of paper used for sealing or " mountain " font raised structures, center protrusion height is higher than the rising height of both sides.
In " W " shape of described zone of heat liberation strip of paper used for sealing or " mountain " font raised structures, the thickness of center protrusion structure is less than the thickness of both sides raised structures.
Described zone of heat liberation strip of paper used for sealing cross section is axially symmetric structure.
1/2 of groove depth on described zone of heat liberation strip of paper used for sealing >=strip of paper used for sealing cross-sectional width.
The beneficial effects of the utility model are:
A kind of aluminium alloy plate fin formula heat exchanger structure adopting high temperature resistant special-shaped strip of paper used for sealing described in the utility model, by the even variation of strip of paper used for sealing sectional area, thus make in vacuum brazing or the radiator high/low temperature course of work, heat flow density can change uniformly along with sectional area, effective reduction thermal stress is concentrated, maximum stress centrostigma is transferred to the home of structure, thus improve the reliability of radiator core body and the service life of radiator.
No matter be in radiator core body Process of Vacuum Brazing, or work under worst hot case, the sectional area even variation between strip of paper used for sealing and dividing plate, all can make in heat conduction process, heat flow density can even variation, avoids because the suddenly change thermal shock that brings and thermal stress of heat flow density is concentrated.
Accompanying drawing explanation
Fig. 1 is traditional zone of heat liberation seal structure schematic diagram;
Fig. 2 is traditional zone of heat liberation strip of paper used for sealing sectional view;
Fig. 3 is structural blast figure of the present utility model;
Fig. 4 is structural representation of the present utility model;
Fig. 5 is cross section structure schematic diagram of the present utility model;
Fig. 6 is the structural representation of zone of heat liberation strip of paper used for sealing in the utility model;
Fig. 7 is the sectional view of zone of heat liberation strip of paper used for sealing in the utility model;
Fig. 8 and Fig. 9 is that in the utility model, zone of heat liberation strip of paper used for sealing is the structural representation of irregular " W " shape or " mountain " shaped sections;
Figure 10 be in prior art heat flow density with strip of paper used for sealing changes of section curve map one;
Figure 11 be in prior art heat flow density with strip of paper used for sealing changes of section curve map two;
Figure 12 is the maximum thermal stress location drawing of strip of paper used for sealing in simulation analysis in prior art;
Figure 13 is the maximum thermal stress location drawing of strip of paper used for sealing in simulation analysis in the utility model.
In figure: 1-zone of heat liberation flow-disturbing fin, 2-zone of heat liberation strip of paper used for sealing, 3-dividing plate, 4-cold fluid pass strip of paper used for sealing, 5-cold fluid pass flow-disturbing fin, 6-zone of heat liberation, 7-cold fluid pass.
Detailed description of the invention
The technical solution of the utility model is further described below in conjunction with accompanying drawing, but described in claimed scope is not limited to.
As shown in figure 3 to figure 7, a kind of aluminium alloy plate fin formula heat exchanger structure adopting high temperature resistant special-shaped strip of paper used for sealing described in the utility model, comprise zone of heat liberation flow-disturbing fin 1, zone of heat liberation strip of paper used for sealing 2, dividing plate 3, cold fluid pass strip of paper used for sealing 4 and cold fluid pass flow-disturbing fin 5, described zone of heat liberation flow-disturbing fin 1 and cold fluid pass flow-disturbing fin 5 are arranged between multi-layer phase, separate between each layer respectively by dividing plate 3; Described cold fluid pass strip of paper used for sealing 4 is positioned at cold fluid pass flow-disturbing fin 5 both sides, and described zone of heat liberation strip of paper used for sealing 2 is positioned at zone of heat liberation flow-disturbing fin 1 both sides, and described zone of heat liberation strip of paper used for sealing 2 medial surface is " W " shape or " mountain " font projection.
In " W " shape of described zone of heat liberation strip of paper used for sealing 2 or " mountain " font raised structures, center protrusion height is higher than the rising height of both sides.Like this in actual production, when assembling radiator core body, the location of radiating fin can be beneficial to.
In " W " shape of described zone of heat liberation strip of paper used for sealing 2 or " mountain " font raised structures, the thickness of center protrusion structure is less than the thickness of both sides raised structures.The thickness of intermediate projections needs the smaller the better, such two ends heat flow density along with the change of sectional area can be more even.
Described zone of heat liberation strip of paper used for sealing 2 cross section is axially symmetric structure.
1/2 of groove depth on described zone of heat liberation strip of paper used for sealing 2 >=strip of paper used for sealing cross-sectional width.The cross section of " W " shape, its groove depth is about dark better.
Embodiment one
As shown in Figure 4, dividing plate 3 all cover solder with the contact surface of zone of heat liberation flow-disturbing fin 1 and cold fluid pass flow-disturbing fin 5, in vacuum high-temperature environment more than 580 DEG C, brazing filler metal melts, by dividing plate 3 with zone of heat liberation flow-disturbing fin 1 together with the brazing filler metal of cold fluid pass flow-disturbing fin 5, formed radiator core body.
Under vacuum environment, heat of high temperature produces huge heat and higher temperature in thermal-radiating mode at radiator core external surface, the larger temperature difference of the inside and outside generation of radiator core body, under this thermograde, heat is the zone of heat liberation strip of paper used for sealing 2 of " W " or " mountain " shape through cross section, from high temperature to low temperature transmission, thus Realization of Product samming, complete soldering.
In the technical program, because the mode of " W " shape or " mountain " font progressively transition is taked in zone of heat liberation strip of paper used for sealing 2 cross section, in conduction process, the sudden change of heat flow density can be reduced greatly, make its even transition, as shown in figure 11, now the position of maximum thermal stress is shifted, and is no longer the lap position of dividing plate and strip of paper used for sealing, but in the bottom of strip of paper used for sealing " W " or " mountain " shape, as shown in figure 13, thus the phenomenon of dividing plate burn through occurs under avoiding the state concentrated in thermal stress.
Embodiment two
Be illustrated in figure 4 the partial view of radiator core body, this radiator core body is used in certain worst hot case.Zone of heat liberation 6 is by the hot-air of temperatures as high 260 DEG C, and cold fluid pass 7 is the air of normal temperature by temperature, when thermal shock, also easily forms larger Thermal Stress at the lap position of zone of heat liberation strip of paper used for sealing 2 and dividing plate 3.
Zone of heat liberation strip of paper used for sealing 2, the two ends of its " W " shape or " mountain " font possess certain telescopicing performance, when high temperature can along with radiator core body together " expansion ", during low temperature along with radiator core body together " contraction ", make heat flow density and thermograde between zone of heat liberation strip of paper used for sealing 2 and radiator core body, have the distribution of progressively transition, thus the harm that reduction thermal stress is brought.
Embodiment three
Zone of heat liberation strip of paper used for sealing 2 as shown in Figure 8 and Figure 9, its shape is irregular " W " shape or " mountain " font, it is in the radiator of vacuum brazing or worst hot case work, also significantly can reduce the position that the impact of heat flow density sudden change and heat of transfer stress are concentrated.
In addition to the foregoing structure, every zone of heat liberation seal structure got according to thought design of the present utility model or equivalent replacement, all should belong to the category of the utility model protection.
Claims (5)
1. one kind adopts the aluminium alloy plate fin formula heat exchanger structure of high temperature resistant special-shaped strip of paper used for sealing, comprise zone of heat liberation flow-disturbing fin (1), zone of heat liberation strip of paper used for sealing (2), dividing plate (3), cold fluid pass strip of paper used for sealing (4) and cold fluid pass flow-disturbing fin (5), described zone of heat liberation flow-disturbing fin (1) and cold fluid pass flow-disturbing fin (5), for arranging between multi-layer phase, separate respectively by dividing plate (3) between each layer; Described cold fluid pass strip of paper used for sealing (4) is positioned at cold fluid pass flow-disturbing fin (5) both sides, described zone of heat liberation strip of paper used for sealing (2) is positioned at zone of heat liberation flow-disturbing fin (1) both sides, it is characterized in that: described zone of heat liberation strip of paper used for sealing (2) medial surface is " W " shape or " mountain " font projection.
2. a kind of aluminium alloy plate fin formula heat exchanger structure adopting high temperature resistant special-shaped strip of paper used for sealing according to claim 1, it is characterized in that: in " W " shape of described zone of heat liberation strip of paper used for sealing (2) or " mountain " font raised structures, center protrusion height is higher than the rising height of both sides.
3. a kind of aluminium alloy plate fin formula heat exchanger structure adopting high temperature resistant special-shaped strip of paper used for sealing according to claim 1, it is characterized in that: in " W " shape of described zone of heat liberation strip of paper used for sealing (2) or " mountain " font raised structures, the thickness of center protrusion structure is less than the thickness of both sides raised structures.
4. a kind of aluminium alloy plate fin formula heat exchanger structure adopting high temperature resistant special-shaped strip of paper used for sealing according to claim 1, is characterized in that: described zone of heat liberation strip of paper used for sealing (2) cross section is axially symmetric structure.
5. a kind of aluminium alloy plate fin formula heat exchanger structure adopting high temperature resistant special-shaped strip of paper used for sealing according to claim 1, is characterized in that: 1/2 of the groove depth >=strip of paper used for sealing cross-sectional width on described zone of heat liberation strip of paper used for sealing (2).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201521027516.1U CN205209323U (en) | 2015-12-11 | 2015-12-11 | Adopt aluminium alloy plate wing formula heat exchanger structures of high temperature resistant special -shaped strip of paper used for sealing |
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| CN201521027516.1U CN205209323U (en) | 2015-12-11 | 2015-12-11 | Adopt aluminium alloy plate wing formula heat exchanger structures of high temperature resistant special -shaped strip of paper used for sealing |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109595957A (en) * | 2018-11-05 | 2019-04-09 | 新乡航空工业(集团)有限公司 | A kind of multi channel heat exchanger of no end socket integral braze-welded structure |
| CN109780918A (en) * | 2019-03-20 | 2019-05-21 | 杭州沈氏节能科技股份有限公司 | The processing method and plate-fin heat exchanger of the plate beam of plate-fin heat exchanger, plate beam |
| CN111200923A (en) * | 2020-01-13 | 2020-05-26 | 贵州永红航空机械有限责任公司 | Miniature radiator structure for radiating large-scale electronic equipment |
| CN111735329A (en) * | 2020-06-28 | 2020-10-02 | 贵州永红航空机械有限责任公司 | Novel high-temperature precooler for aircraft environmental control system |
| CN114154373A (en) * | 2021-11-25 | 2022-03-08 | 重庆长安汽车股份有限公司 | Simulation analysis method and device for hot blow-by gas of automobile passenger compartment and storage medium |
-
2015
- 2015-12-11 CN CN201521027516.1U patent/CN205209323U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109595957A (en) * | 2018-11-05 | 2019-04-09 | 新乡航空工业(集团)有限公司 | A kind of multi channel heat exchanger of no end socket integral braze-welded structure |
| CN109780918A (en) * | 2019-03-20 | 2019-05-21 | 杭州沈氏节能科技股份有限公司 | The processing method and plate-fin heat exchanger of the plate beam of plate-fin heat exchanger, plate beam |
| CN111200923A (en) * | 2020-01-13 | 2020-05-26 | 贵州永红航空机械有限责任公司 | Miniature radiator structure for radiating large-scale electronic equipment |
| CN111200923B (en) * | 2020-01-13 | 2022-02-22 | 贵州永红航空机械有限责任公司 | Miniature radiator structure for radiating large-scale electronic equipment |
| CN111735329A (en) * | 2020-06-28 | 2020-10-02 | 贵州永红航空机械有限责任公司 | Novel high-temperature precooler for aircraft environmental control system |
| CN114154373A (en) * | 2021-11-25 | 2022-03-08 | 重庆长安汽车股份有限公司 | Simulation analysis method and device for hot blow-by gas of automobile passenger compartment and storage medium |
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