CN208075632U - A kind of FTGP finned heat exchangers - Google Patents
A kind of FTGP finned heat exchangers Download PDFInfo
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- CN208075632U CN208075632U CN201820233751.1U CN201820233751U CN208075632U CN 208075632 U CN208075632 U CN 208075632U CN 201820233751 U CN201820233751 U CN 201820233751U CN 208075632 U CN208075632 U CN 208075632U
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- heat
- ftgp
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- cold
- outline border
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Abstract
The utility model discloses a kind of FTGP finned heat exchangers, are related to technical field of heat exchange equipment.The heat exchanger is alternatively arranged composition cold passage by using multiple FTGP of sigmoid curve shape, and cold passage is arranged between two passage of heat outline borders, when use, it is passed through hot fluid in the passage of heat outline border, it is passed through cold fluid in the gap of the FTGP of the cold passage, heat transfer is undergone phase transition in FTGP, realizes the heat exchange of cold fluid and hot fluid.When by heat exchanger applications to aero-engine provided in this embodiment, compactness can reach 1412, mass-power ratio can reach 387kW/kg, compactness and mass-power ratio are greatly improved, disclosure satisfy that the requirement for realizing high power heat exchange in the following aero-engine with smaller space and lighter heat transmission equipment.
Description
Technical field
The utility model is related to technical field of heat exchange equipment more particularly to a kind of FTGP finned heat exchangers.
Background technology
Currently, the heat exchanger of aero-engine field application mostly uses plate-fin and pipe shell type heat exchange structure, and to fin
The abundant experience of heat convection technological accumulation is strengthened in heat conduction, but by material inherently thermal coefficient (copper 400W/m K, aluminium
160W/m K) limitation and single-phase convection heat-transfer (Air Forced Convection coefficient of heat transfer 103W/m2K) bottleneck limits, the heat exchange of plate wing
The compactness and unit mass heat exchange power of device have become the limit, it is impossible to meet in the following aero-engine with smaller space and
Lighter heat exchange equipment realizes the requirement of high power heat exchange.
Utility model content
The purpose of this utility model is to provide a kind of FTGP finned heat exchangers, to solve it is existing in the prior art before
State problem.
To achieve the goals above, the technical solution adopted in the utility model is as follows：
A kind of FTGP finned heat exchangers, including multiple heat exchange modules, each heat exchange module include two passage of heats
Outline border, the region between two passage of heat outline borders are set as cold passage, and the cold passage is alternatively arranged structure by multiple FTGP
At the FTGP is set as sigmoid curve shape；In use, hot fluid is passed through in the passage of heat outline border, it is adjacent in the cold passage
It is passed through cold fluid in the gap of two FTGP.
Preferably, fin it has been alternatively arranged in each passage of heat outline border.
Preferably, the passage of heat outline border and the fin are prepared by aluminum material.
Preferably, the passage of heat outline border and the integrated structure of the fin machining.
Preferably, the distance between two neighboring described fin is 4.28mm.
Preferably, it is welded to connect or is processed into integral structure between the end of the FTGP and the passage of heat outline border.
Preferably, the distance between two neighboring described FTGP is 2.6mm.
Preferably, multiple heat exchange modules are regularly arranged is connected as one, and two adjacent heat exchange modules share
One passage of heat outline border.
The utility model has the beneficial effects that：The FTGP finned heat exchangers that the utility model embodiment provides, by using S
The curvilinear multiple FTGP of shape are alternatively arranged composition cold passage, and cold passage is arranged between two passage of heat outline borders, use
When, hot fluid is passed through in the passage of heat outline border, cold fluid is passed through in the gap of the FTGP of the cold passage, in FTGP
Heat transfer is undergone phase transition, realizes the heat exchange of cold fluid and hot fluid.When by heat exchanger applications to aero-engine provided in this embodiment, tightly
Degree of gathering can reach 1412, and mass-power ratio can reach 387kW/kg, greatly improve compactness and mass-power ratio, Neng Gouman
The requirement of high power heat exchange is realized in foot future aero-engine with smaller space and lighter heat transmission equipment.
Description of the drawings
Fig. 1 is the front view of FTGP finned heat exchangers provided by the utility model；
Fig. 2 is the overall structure diagram of FTGP finned heat exchangers provided by the utility model；
Fig. 3 a are the operation principle schematic diagram of FTGP finned heat exchangers provided by the utility model；
Phase-change heat transfer mechanism figure inside the hot junction excitation TGP of Fig. 3 b FTGP finned heat exchangers provided by the utility model；
The cold end TGP of Fig. 3 c FTGP finned heat exchangers provided by the utility model strengthens heat convection mechanism figure；
Fig. 4 is the cooling air system structural schematic diagram for the aero-engine that embodiment one provides；
Fig. 5 is the cold heat regenerative system structural schematic diagram in centre for the aero-engine that embodiment two provides；
Fig. 6 is the chilldown system structural schematic diagram for the aero-engine that embodiment three provides；
Fig. 7 a1,7a2 are cross flow heat exchanger structure schematic diagram in embodiment one, two, three each systems；
Fig. 7 b are counter-flow heat exchanger structural schematic diagram in embodiment one, two, three each systems；
Fig. 7 c are that counter-flow heat exchanger structural schematic diagram is pitched in embodiment one, two, three each systems.
In figure, the meaning of each symbol is as follows：
1 passage of heat outline border, 2 hot fluids, 3 fins, 4FTGP, 5 cold fluids, 6 air intake duct air, 7 inter coolers, 8 seawater/light
It is water- to-water heat exchanger, 9 pipeline valves, 10 combustion chambers, 11 fuel, 12 high-pressure turbines, 13 power turbine guiders, 14 power turbines, 15 low
Press turbine, 16 backheat gas devices, 17 tail gas, 18 fans, 19 high-pressure compressors, 20 diffusers, 21 air to air heat exchanger, 22 coolings empty
Gas, 23 bypath systems, 24 fuel oils, 25 casings, 26 combustion chambers, 27 high-pressure compressor bleeds, 28 strip of paper used for sealings, 29 partition boards, 30 plate beam bodies,
31 air intake ducts, 32 forecoolers, 33 turbocharger, 34 helium cycle devices, 35 heat exchangers, 36 liquid hydrogen pumps, 37 liquid oxygen pumps, 38 premix combustions
Burner, 39 rocket launching machines.
Specific implementation mode
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing, to this reality
It is further elaborated with novel.It should be appreciated that the specific embodiments described herein are only used to explain this practicality
It is novel, it is not used to limit the utility model.
As shown in Figs. 1-2, the utility model embodiment provides a kind of FTGP finned heat exchangers, including multiple heat exchange moulds
Group, each heat exchange module include two passage of heat outline borders 1, and the region between two passage of heat outline borders 1 is set as cold logical
Road, the cold passage are alternatively arranged by multiple FTGP4 and are constituted, and FTGP4 is set as sigmoid curve shape；In use, passage of heat outline border 1
In be passed through hot fluid 2, be passed through cold fluid 5 in the gap of two neighboring FTGP in the cold passage.
In above structure, the spaced FTGP in cold passage had not only made substrate but also had cooked fin, and played heat conduction and heat dissipation
Effect.In use, it is passed through hot fluid in passage of heat outline border, is passed through in the gap of the two neighboring FTGP of cold passage cold
Fluid, the FTGP with hot fluid side contacts are evaporation ends, and the FTPG contacted with cold fluid is condensation end, the heat transfer of hot fluid
To FTGP so that working medium evaporation or boiling heat absorption, steam in FTGP flow to condensation end under differential pressure action, carry out condensation and dissipate
Heat transfers heat to cold fluid, and then realizes the heat exchange of cold fluid and hot fluid.Its operation principle is as shown in Figure 3a, 3b and 3c as shown in.
So the heat exchanger that the utility model embodiment provides, by using multiple FTGP of sigmoid curve shape
(Flexible Thermal Ground Plane, flexible soaking version) is alternatively arranged composition cold passage, will have higher heat-energy transducer
Phase-change heat-exchange (the equivalent coefficient of heat transfer 10 of power4W/m2K it) is dexterously introduced into heat exchanger, using soaking plate in two dimension or even three-dimensional
Direction has the characteristics that compared with high equivalent weight thermal conductivity coefficient (3-5 times that can reach copper), to realize the loss of weight and mass-power of heat exchanger
The great raising of ratio so that when by heat exchanger applications to aero-engine provided in this embodiment, compactness can reach
1412, mass-power ratio can reach 387kW/kg, disclosure satisfy that in the following aero-engine with smaller space and lighter changes
Hot equipment realizes the requirement of high power heat exchange.
In the present embodiment, fin 3 has been alternatively arranged in each passage of heat outline border 1.
In above structure, due to, needing to be passed through hot fluid in passage of heat outline border in use, so, in outline border
In be alternatively arranged some fins, heat exchange area can be increased, improve the heat exchange efficiency of heat exchanger.
In the present embodiment, passage of heat outline border 1 and fin 3 can be prepared by aluminum material.
In the present embodiment, passage of heat outline border 1 and fin 3 can be processed into integral structure.
As will be understood by the skilled person in the art, passage of heat outline border and fin can also be passed through other connection types
It is attached.
In the present embodiment, the distance between two adjacent fins 3 can be 4.28mm.
In the present embodiment, the distance of passage of heat fin is 4.28mm so that the compactness of heat exchanger can reach 1000 with
On, while mass-power ratio can reach 300 or more.
As will be understood by the skilled person in the art, the distance between two adjacent fins in the passage of heat can also basis
Different requirements are designed accordingly.
In the present embodiment, integral structure is welded to connect or is processed between the end and passage of heat outline border 1 of FTGP4.
In the present embodiment, the distance between two neighboring FTGP4 can be 2.6mm.
In the present embodiment, the distance between two neighboring FTGP4 is selected as 2.6mm, can make the compactness of heat exchanger
1000 or more can be reached, while mass-power ratio can reach 300 or more.
As will be understood by the skilled person in the art, the distance between two neighboring FTGP can also be according to different requirements
It is designed accordingly.
In the present embodiment, multiple heat exchange modules are transversely arranged to be connected as one, two adjacent heat exchange modules
Share a passage of heat outline border.
Using the above structure, the heat exchanger of different scales size can be more flexibly obtained, while is also beneficial to the later stage
The operations such as the repair and update of heat exchanging device.
The FTGP finned heat exchangers that the utility model embodiment provides, the application in the following aero-engine may refer to
Following three embodiment：
Embodiment one
As shown in figure 4, in aero-engine cools down cooling air system, cooling sky is cooled down by air to air heat exchanger
Gas improves the quality of cooling air to further decrease the temperature of hot-end component.
Embodiment two
As shown in figure 5, in aero-engine intercooled regeneration system, mainstream gas passes through inter cooler (heat exchanger) and outer culvert
Air carries out heat exchange, and air themperature enters high-pressure compressor after reducing, increases charge flow rate, reduce the work done during compression of compressor；
Simultaneously by backheat link, the heat of turbine outlet exhaust, the utilization rate of energization are recycled.
Embodiment three
As shown in fig. 6, aero-engine chilldown system is to install precooling additional in the compressor front of conventional turbine engines to change
Hot device, the air-flow in cooling air intake duct, makes gas flow temperature decline, and extend turbogenerator can working range.
The FTGP finned heat exchangers of above three embodiments being applied in aero-engine may be used following three kinds not
The same type of flow：Cross flow (reference can be made to Fig. 7 a1,7a2), pitches reverse-flow (reference can be made to Fig. 7 c) at reverse-flow (reference can be made to Fig. 7 b).
In summary embodiment, it is known that aeroplane engine machine heat exchanger is designed with following basic demand：It first has to ensure hair
The normal work of motivation, the followed by good operation of itself will pursue small size, light weight and highly reliable on this basis
Property, and realize power transmission overall structure and performance requirement in the most optimal way.Therefore, in design of heat exchanger, Ying Cong
Structure, energy consumption, reliability, operation and technique etc. are required as follows：
Heat exchanger structure is compact, size is small, light-weight；
Under all loads being likely to occur and external condition, heat exchanger can reliably work and reach engine work
It is required；
Meet the intensity and reliability requirement under engine operating environments；
Heat exchanger connection and reasonable arrangement in systems, is easily installed, dismantles and monitors.
Soaking sheet heat exchanger provided in this embodiment can be good at the requirement of satisfaction or more, so as to apply well
In aero-engine.
By using above-mentioned technical proposal disclosed by the utility model, following beneficial effect has been obtained：The utility model
The FTGP finned heat exchangers that embodiment provides are alternatively arranged composition cold passage by using multiple FTGP of sigmoid curve shape, and will
Cold passage is arranged between two passage of heat outline borders, in use, hot fluid is passed through in the passage of heat outline border, the cold passage
It is passed through cold fluid in the gap of the FTGP, heat transfer is undergone phase transition in FTGP, realizes the heat exchange of cold fluid and hot fluid.By the present embodiment
When in the heat exchanger applications to aero-engine of offer, compactness can reach 1412, and mass-power ratio can reach 387kW/kg, pole
Big improves compactness and mass-power ratio, disclosure satisfy that in the following aero-engine with smaller space and lighter heat exchange
Equipment realizes the requirement of high power heat exchange.
The above is only the preferred embodiment of the utility model, it is noted that for the common skill of the art
For art personnel, without departing from the principle of this utility model, several improvements and modifications can also be made, these improve and
Retouching should also regard the scope of protection of the utility model.
Claims (8)
1. a kind of FTGP finned heat exchangers, which is characterized in that including multiple heat exchange modules, each heat exchange module includes two
A passage of heat outline border, the region between two passage of heat outline borders are set as cold passage, and the cold passage is by between multiple FTGP
Every being arranged to make up, the FTGP is set as sigmoid curve shape；In use, hot fluid is passed through in the passage of heat outline border, it is described cold logical
In road cold fluid is passed through in the gap of the two neighboring FTGP.
2. FTGP finned heat exchangers according to claim 1, which is characterized in that be spaced in each passage of heat outline border
It is arranged with fin.
3. FTGP finned heat exchangers according to claim 2, which is characterized in that the passage of heat outline border and the fin are equal
It is prepared by aluminum material.
4. FTGP finned heat exchangers according to claim 2, which is characterized in that the passage of heat outline border and the fin add
The integrated structure of work.
5. FTGP finned heat exchangers according to claim 2, which is characterized in that the distance between two neighboring described fin
For 4.28mm.
6. FTGP finned heat exchangers according to claim 1, which is characterized in that the end of the FTGP and the passage of heat
Integral structure is welded to connect or is processed between outline border.
7. FTGP finned heat exchangers according to claim 1, which is characterized in that the distance between two neighboring described FTGP
For 2.6mm.
8. FTGP finned heat exchangers according to claim 1, which is characterized in that the regularly arranged company of multiple heat exchange modules
It is connected in one, two adjacent heat exchange modules share a passage of heat outline border.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820233751.1U CN208075632U (en) | 2018-02-09 | 2018-02-09 | A kind of FTGP finned heat exchangers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820233751.1U CN208075632U (en) | 2018-02-09 | 2018-02-09 | A kind of FTGP finned heat exchangers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208075632U true CN208075632U (en) | 2018-11-09 |
Family
ID=64037889
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820233751.1U Expired - Fee Related CN208075632U (en) | 2018-02-09 | 2018-02-09 | A kind of FTGP finned heat exchangers |
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| CN (1) | CN208075632U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110259581A (en) * | 2019-05-05 | 2019-09-20 | 南京航空航天大学 | A kind of by-pass air duct double-work medium heat exchanger using air and fuel oil |
-
2018
- 2018-02-09 CN CN201820233751.1U patent/CN208075632U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110259581A (en) * | 2019-05-05 | 2019-09-20 | 南京航空航天大学 | A kind of by-pass air duct double-work medium heat exchanger using air and fuel oil |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181109 Termination date: 20200209 |
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| CF01 | Termination of patent right due to non-payment of annual fee |