CN107360704A - A kind of airborne open type spray cooling system using ammonia as cooling medium - Google Patents
A kind of airborne open type spray cooling system using ammonia as cooling medium Download PDFInfo
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- CN107360704A CN107360704A CN201710789248.4A CN201710789248A CN107360704A CN 107360704 A CN107360704 A CN 107360704A CN 201710789248 A CN201710789248 A CN 201710789248A CN 107360704 A CN107360704 A CN 107360704A
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- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 title claims abstract description 175
- 229910021529 ammonia Inorganic materials 0.000 title claims abstract description 84
- 238000001816 cooling Methods 0.000 title claims abstract description 46
- 239000007921 spray Substances 0.000 title claims abstract description 34
- 239000002826 coolant Substances 0.000 title claims abstract description 20
- 238000011084 recovery Methods 0.000 claims abstract description 34
- 239000003054 catalyst Substances 0.000 claims abstract description 21
- 239000002828 fuel tank Substances 0.000 claims abstract description 9
- 238000000034 method Methods 0.000 claims description 10
- 230000008569 process Effects 0.000 claims description 7
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 6
- 239000007789 gas Substances 0.000 claims description 5
- 238000002347 injection Methods 0.000 claims description 5
- 239000007924 injection Substances 0.000 claims description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 4
- 239000000295 fuel oil Substances 0.000 claims description 4
- 238000005507 spraying Methods 0.000 claims description 4
- 239000000446 fuel Substances 0.000 claims description 3
- 229910052757 nitrogen Inorganic materials 0.000 claims description 3
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 claims description 3
- 238000006722 reduction reaction Methods 0.000 claims description 3
- MCMNRKCIXSYSNV-UHFFFAOYSA-N ZrO2 Inorganic materials O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 claims description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 2
- 229910052681 coesite Inorganic materials 0.000 claims description 2
- 229910052593 corundum Inorganic materials 0.000 claims description 2
- 229910052906 cristobalite Inorganic materials 0.000 claims description 2
- 230000000694 effects Effects 0.000 claims description 2
- 238000004134 energy conservation Methods 0.000 claims description 2
- 230000009467 reduction Effects 0.000 claims description 2
- 239000000377 silicon dioxide Substances 0.000 claims description 2
- 229910052682 stishovite Inorganic materials 0.000 claims description 2
- 229910052905 tridymite Inorganic materials 0.000 claims description 2
- 229910001845 yogo sapphire Inorganic materials 0.000 claims description 2
- 230000003197 catalytic effect Effects 0.000 claims 1
- 238000004064 recycling Methods 0.000 claims 1
- 230000004907 flux Effects 0.000 abstract description 4
- 238000009834 vaporization Methods 0.000 abstract description 3
- 230000008016 vaporization Effects 0.000 abstract description 3
- 230000033228 biological regulation Effects 0.000 abstract 1
- 230000017525 heat dissipation Effects 0.000 abstract 1
- 230000006641 stabilisation Effects 0.000 abstract 1
- 238000011105 stabilization Methods 0.000 abstract 1
- 239000003507 refrigerant Substances 0.000 description 5
- 210000004243 sweat Anatomy 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 3
- 238000005057 refrigeration Methods 0.000 description 3
- 238000000889 atomisation Methods 0.000 description 2
- 238000010531 catalytic reduction reaction Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 241000208340 Araliaceae Species 0.000 description 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 1
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007123 defense Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 235000008434 ginseng Nutrition 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 238000004781 supercooling Methods 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/2029—Modifications to facilitate cooling, ventilating, or heating using a liquid coolant with phase change in electronic enclosures
- H05K7/20345—Sprayers; Atomizers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/92—Chemical or biological purification of waste gases of engine exhaust gases
- B01D53/94—Chemical or biological purification of waste gases of engine exhaust gases by catalytic processes
- B01D53/9404—Removing only nitrogen compounds
- B01D53/9409—Nitrogen oxides
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/2029—Modifications to facilitate cooling, ventilating, or heating using a liquid coolant with phase change in electronic enclosures
- H05K7/20327—Accessories for moving fluid, for connecting fluid conduits, for distributing fluid or for preventing leakage, e.g. pumps, tanks or manifolds
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Health & Medical Sciences (AREA)
- Combustion & Propulsion (AREA)
- Biomedical Technology (AREA)
- Environmental & Geological Engineering (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Exhaust Gas After Treatment (AREA)
Abstract
A kind of airborne open type spray cooling system using ammonia as cooling medium, belong to airborne high heat flux equipment cooling field.The present invention continues heat dissipation problem mainly for solving the high heat flux of air environment and facet surface.Mainly include：Liquefied ammonia high pressure storage tank (1), flow control valve (2), first stop valve (3), flowmeter (4), nozzle (5), surface (6) to be cooled, spray chamber (7), cold recovery exchanger (8), fuel tank (9), second stop valve (10), 3rd stop valve (11), Ammonia recovery tank (12), 4th stop valve (13), engine bleed port (14), pump (15), catalyst converter (16), external environment port (17).The present invention uses the big liquefied ammonia of the latent heat of vaporization to carry out misting cooling to high-temperature electronic equipment or facet surface as cooling medium, and introduce engine exhaust and reacted with the ammonia after heat exchange, described open system stabilization safe for operation, it is easy to regulation to operate, meets the cooling requirement under airborne complex environment.
Description
Technical field
The present invention relates to a kind of airborne open type spray cooling system using ammonia as cooling medium, belong to airborne high heat flux
Equipment cooling field.
Background technology
With the continuous improvement that aircraft mobility, Stealth Fighter, defending performance require, high power laser light technology, electricity
Sub- component is highly integrated to be developed rapidly with technologies such as miniaturizations.2013, U.S. national defense advanced research projects agency authorized
One prototype laser weapons of system is attached on verification machine by Lockheed Martin Corporation.In September, 2015, USAF is announced will
Laser weapon is installed additional on AC-130 gunships.Such weapon will produce the heat of MW class after transmitting in several seconds, lead
Its surface great thermal force of generation and high heat flow density, its heat flow density order of magnitude is caused to can reach thousands of W/cm2.This
Outside, the heat flow density of New Generation Military electronic equipment is up to 107W/cm2, the processor heat output of most significant end is more than 250W/
cm2.If not adopting an effective measure reduces electronic equipment surface temperature, its operating efficiency is gently then substantially reduced, it is heavy then burn electricity
Sub- device, influences flight safety.Therefore, the quick heat radiating for how efficiently and safely solving the problems, such as airborne equipment has important grind
Study carefully meaning.Conventional air-cooled and water-cooling pattern exchange capability of heat has reached capacity, and can not meet the electronic equipment that increasingly improves and swash
The radiating requirements of light device.
Misting cooling is that cooling medium is decomposed into countless discrete type droplets by atomization, is sprayed on heating surface
A kind of novel cooling manner of heat is taken away by single-phase heat exchange and two-phase heat exchange, the advantage is that：Less surface temperature difference；Not yet
There is boiling hysteresis quality；Good heat exchange property；Uniform cooling wall temperature can be achieved；Working medium demand is small.Misting cooling skill
Art has very strong application prospect in airborne equipment cooling field.Application of the spray cooling in airborne field, it is necessary first to
Solve the problems, such as that the sustainable use of cooling medium takes with system space.
Existing partial monopoly proposes application process of the misting cooling in airborne field, such as patent ZL201510072716.7
A kind of cooling system of the airborne heater element based on air swell refrigeration is proposed, is mainly characterized by using turbine as refrigeration
Device and power source, misting cooling must can be carried out when the program comes into operation first by turbine cold-storage, cool-storage time is grown,
It can not come into operation at any time；The complicated and device space is big, the installation difficulty on military aircraft.Patent
ZL201510074027.X proposes a kind of cooling system and method for the airborne heater element based on sweat cooling, main feature
Indirect low-temperature receiver is provided for system to be circulated using sweat cooling, volume and energy consumption are very big after addition sweat cooling circulation, and
This invention does not circulate to sweat cooling and is equipped with low-temperature receiver, if input actual use volume can be bigger, can not be applicable onboard spatial
It is required that.
If in addition, using closed cycle spray cooling system aboard, the change of refrigerant flow can bleed spraying
The change of the series of parameters such as pressure, drop degree of supercooling, can not be according to true heat gain value accurate adjustment；Opened if being equipped with aboard
Formula circulates spray cooling system, then without kind of refrigeration cycle, occupies little space, mist flow can be adjusted directly without influenceing other ginsengs
Number.
The cooling medium dosage of misting cooling can be calculated by formula (1)
In formula, Q is surface heat amount, kW；M is refrigerant mass fluxes, kg/s；cpFor refrigerant specific heat at constant pressure, kJ/
(kg·k)；hfgFor the refrigerant latent heat of vaporization, kJ/kg；η is misting cooling efficiency；twFor heat sink surface temperature, DEG C；tinFor nozzle
Saturated refrigerant temperature afterwards, DEG C, t for spraying the duration, s.
Relative to other cooling mediums, the latent heat of vaporization of liquefied ammonia is larger, and dosage is smaller under similar face heating amount.Such as
Heating power 10kW, 1 hour heat time, for surface temperature control at 80 DEG C, liquefied ammonia dosage is only 27.57kg, if now
Using R134a, then dosage is 106.4kg., can be big if therefore airborne spray cooling system can be applied to using ammonia as cooling medium
It is big to improve system economy and continuation.This patent uses open system, and using the nitrogen oxides in engine exhaust with changing
Ammonia reaction after heat, it is expelled directly out out of my cabin, alleviating system heavy burden after eliminating the toxicity of ammonia.
The content of the invention
It is an object of the invention to provide a kind of airborne open type spray cooling system using ammonia as cooling medium.
The system is mainly by liquefied ammonia high pressure storage tank (1), flow control valve (2), the first stop valve (3), flowmeter (4), spray
Mouth (5), surface to be cooled (6), spray chamber (7), cold recovery exchanger (8), fuel tank (9), the second stop valve (10), the 3rd section
Only valve (11), Ammonia recovery tank (12), the 4th stop valve (13), engine bleed port (14), pump (15), catalyst converter (16),
External environment port (17) forms.
Second stop valve (10) has an entrance and two outlets, and first outlet is that ammonia storage exports, second outlet
Exported for ammonia processing；
Pump (15) has two entrances and one outlet, and first entrance is ammonia entrance, and second entrance is engine bleed
Entrance.
Wherein the outlet of liquefied ammonia high pressure storage tank (1) is connected with the entrance of flow control valve (2), and flow control valve (2) go out
Mouth is connected with the entrance of the first stop valve (3), and the outlet of the first stop valve (3) is connected with the entrance of flowmeter (4), flowmeter
(4) outlet is connected with the entrance of nozzle (5), on outlet spray injection to surface to be cooled (6) of nozzle (5).Nozzle (5) and
Surface (6) to be cooled is enclosed in spray chamber (7).The outlet of spray chamber (7) is connected with the entrance of cold recovery exchanger (8),
The outlet of cold recovery exchanger (8) is connected with the entrance of the second stop valve (10), the first outlet of the second stop valve (10) with
The entrance of 3rd stop valve (11) is connected, and the outlet of the 3rd stop valve (11) is connected with the entrance of Ammonia recovery tank (12)；Second
The second outlet of stop valve (10) is connected with the entrance of the 4th stop valve (13), outlet and the pump (15) of the 4th stop valve (13)
First entrance is connected.The second entrance of pump (15) is connected with the outlet of engine bleed port (14), and the outlet of pump (15) is with urging
The entrance for changing device (16) is connected, and the outlet of catalyst converter (16) is connected with external environment port (17).
Cold recovery exchanger (8) is arranged on around fuel tanker (9), and fuel tank (9) is cooled down.
The system mainly includes procedure below：
The quantitative high-pressure liquid ammonia of storage in liquefied ammonia high pressure storage tank (1), during system operation, the first stop valve (3) is opened, is led to
Excessively stream adjustable valve (2) adjusts liquefied ammonia flow, and liquefied ammonia flow is read by flowmeter (4).Liquefied ammonia is through flow control valve (2),
One stop valve (3) and flowmeter (4) flow nozzle (5) afterwards, after being atomized in nozzle (5) injection reduced to surface to be cooled (6)
The temperature of surface (6) to be cooled.Liquefied ammonia is converted to low temperature ammonia, outlet stream of the low temperature ammonia through spray chamber (7) after the completion of heat exchange
Enter cold recovery exchanger (8), heat exchange, which heats up, in cold recovery exchanger (8) turns into high temperature ammonia.
When Ammonia tolerance is less, the 4th stop valve (13) can be closed, the 3rd stop valve (11) is opened, by high temperature ammonia
It is stored in Ammonia recovery tank (12).After misting cooling is out of service, the second stop valve (10) is closed, opens the 4th stop valve
(13)。
When systems stay run time is longer, when high temperature ammonia is more, the 3rd stop valve (11) can be closed, opens the 4th section
Only valve (13), Ammonia gas disposal process is carried out simultaneously with misting cooling process.
During high temperature nitrogen treatment, the motor exhaust of nitrogen-containing oxide is introduced by engine bleed port (14), by tail gas
Flowed into high temperature ammonia by pump (15) in catalyst converter (16), the NH in catalyst converter (16)3High-temperature catalytic reduction is carried out with NOx
Reaction produces N2And H2O, caused N2And H2O is discharged outside cabin by external environment port (17).
Nozzle (5) and surface to be cooled (6) are enclosed in spray chamber (7) so that the low temperature ammonia flow after the completion of spraying
Enter in cold recovery exchanger (8), reach the effect for saving cooling medium and energy-conservation.
The cold of recovery is used to reduce fuel tank (9) interior fuel oil temperature in the cold recovery exchanger (8), for remaining use
Fuel-cooled equipment provides more sufficient cold.
Catalyst converter contains high temperature catalyst, including but not limited to TiO in (16)2、Al2O3、ZrO2And SiO2。
Brief description of the drawings
Accompanying drawing 1 is schematic diagram of the invention.
Label title in accompanying drawing 1：1. liquefied ammonia high pressure storage tank, 2. flow control valves, 3. first stop valves, 4. flowmeters,
5. nozzle, 6. surfaces to be cooled, 7. spray chambers, 8. cold recovery exchangers, 9. fuel tanks, 10. second stop valves, 11. the 3rd sections
Only valve, 12. Ammonia recovery tanks, 13. the 4th stop valves, 14. engine bleed ports, 15. pumps, 16. catalyst converters, 17. extraneous rings
Border port.
Embodiment
Stored up as shown in figure 1, a kind of airborne open type spray cooling system using ammonia as cooling medium mainly includes liquefied ammonia high pressure
Tank 1, flow control valve 2, the first stop valve 3, flowmeter 4, nozzle 5, surface to be cooled 6, spray chamber 7, cold recovery exchanger
8th, fuel tank 9, the second stop valve 10, the 3rd stop valve 11, Ammonia recovery tank 12, the 4th stop valve 13, engine bleed port 14,
Pump 15, catalyst converter 16, external environment port 17.
Before taking off, cool time is needed to draw spray cooling system run time according to aircraft cruising time and equipment,
According to run time in liquefied ammonia high pressure storage tank 1 sufficient quantitative high-pressure liquid ammonia.Now the first stop valve 3, the second stop valve
10th, the 3rd stop valve 11 and the 4th stop valve 13 are in closed mode.
After taking off, when needing to cool down electronic equipment or other surfaces, the first stop valve 3 is opened, is passed through
Flow control valve 2 adjusts liquefied ammonia flow, and liquefied ammonia flow is read by flowmeter 4.Liquefied ammonia is through flow control valve 2, the first stop valve 3
With flow nozzle 5 after flowmeter 4, injection is to surface 6 to be cooled after atomization turns into drop in nozzle 5, with the shape of misting cooling
Formula reduces the temperature on surface 6 to be cooled.Liquefied ammonia is converted to low temperature ammonia, outlet of the low temperature ammonia through spray chamber 7 after the completion of heat exchange
Cold recovery exchanger 8 is flowed into, heat exchange, which heats up, in cold recovery exchanger 8 turns into high temperature ammonia.Cold recovery exchanger (8)
The cold of middle recovery is used to reduce fuel oil temperature in fuel tanker, so as to need to use fuel-cooled airborne equipment to carry for other
For more sufficient cold.
After the completion of misting cooling, when Ammonia tolerance is less, the 4th stop valve 13 can be closed, opens the 3rd stop valve
11, high temperature ammonia is stored in Ammonia recovery tank 12.After misting cooling is out of service, the second stop valve 10 is closed, is opened
4th stop valve 13, the ammonia stored in Ammonia recovery tank 12 is mixed with the motor exhaust that engine bleed port 14 introduces
Reacted into catalyst converter 16.
When systems stay run time is longer, when high temperature ammonia is more, the 3rd stop valve 11 can be closed, opens the 4th cut-off
Valve 13, Ammonia gas disposal process is carried out simultaneously with misting cooling process.
During high temperature nitrogen treatment, the engine high-temperature tail gas of nitrogen-containing oxide is introduced by engine bleed port 14, by height
Warm tail gas is flowed into catalyst converter 16 with high temperature ammonia by pump 15, and multilayer reduction catalyst is equipped with catalyst converter 16.
The NH in catalyst converter 163High-temperature catalytic reduction reaction, which is carried out, with NOx produces N2And H2O, caused N2And H2O passes through external environment end
Mouth 17 is discharged outside cabins.
The airborne open type spray cooling system using ammonia as cooling medium, wherein open system is simple in construction, dependable performance；
Use ammonia as cooling medium and saved medium consumption, it is ensured that the continuation of system operation；It is anti-with ammonia using engine bleed
Should, eliminate pollution of the ammonia to Inside Environment of Plane and equipment.
Claims (5)
- A kind of 1. airborne open type spray cooling system using ammonia as cooling medium, it is characterised in that：By liquefied ammonia high pressure storage tank (1), flow control valve (2), the first stop valve (3), flowmeter (4), nozzle (5), table to be cooled Face (6), spray chamber (7), cold recovery exchanger (8), fuel tank (9), the second stop valve (10), the 3rd stop valve (11), ammonia Recycling can (12), the 4th stop valve (13), engine bleed port (14), pump (15), catalyst converter (16), external environment port (17) form.Second stop valve (10) has an entrance and two outlets, and first outlet is ammonia storage outlet, and second outlet is ammonia Gas disposal exports；Pump (15) has two entrances and one outlet, and first entrance is ammonia entrance, and second entrance is engine bleed entrance.Wherein the outlet of liquefied ammonia high pressure storage tank (1) is connected with the entrance of flow control valve (2), the outlet of flow control valve (2) with The entrance of first stop valve (3) is connected, and the outlet of the first stop valve (3) is connected with the entrance of flowmeter (4), flowmeter (4) Outlet is connected with the entrance of nozzle (5), on outlet spray injection to surface to be cooled (6) of nozzle (5).Nozzle (5) and treat cold But surface (6) are enclosed in spray chamber (7).The outlet of spray chamber (7) is connected with the entrance of cold recovery exchanger (8), cold The outlet of recovery heat exchanger (8) is connected with the entrance of the second stop valve (10), the first outlet and the 3rd of the second stop valve (10) The entrance of stop valve (11) is connected, and the outlet of the 3rd stop valve (11) is connected with the entrance of Ammonia recovery tank (12)；Second cut-off The second outlet of valve (10) is connected with the entrance of the 4th stop valve (13), the outlet of the 4th stop valve (13) and the first of pump (15) Entrance is connected.The second entrance of pump (15) is connected with the outlet of engine bleed port (14), the outlet of pump (15) and catalyst converter (16) entrance is connected, and the outlet of catalyst converter (16) is connected with external environment port (17).Cold recovery exchanger (8) is arranged on around fuel tanker (9), and fuel tank (9) is cooled down.
- A kind of 2. airborne open type spray cooling system using ammonia as cooling medium according to claim 1, it is characterised in that Including procedure below：The quantitative high-pressure liquid ammonia of storage in liquefied ammonia high pressure storage tank (1), during system operation, the first stop valve (3) is opened, passes through stream Adjustable valve (2) adjusts liquefied ammonia flow, and liquefied ammonia flow is read by flowmeter (4).Liquefied ammonia through flow control valve (2), first section Only valve (3) and flowmeter (4) flow nozzle (5) afterwards, after being atomized in nozzle (5) injection to surface to be cooled (6), reduction treat cold But the temperature of surface (6).Liquefied ammonia is converted to low temperature ammonia after the completion of heat exchange, and outlet of the low temperature ammonia through spray chamber (7) flows into cold Amount recovery heat exchanger (8), heat exchange, which heats up, in cold recovery exchanger (8) turns into high temperature ammonia.When Ammonia tolerance is less, the 4th stop valve (13) can be closed, the 3rd stop valve (11) is opened, high temperature ammonia is stored In Ammonia recovery tank (12).After misting cooling is out of service, the second stop valve (10) is closed, opens the 4th stop valve (13)。When systems stay run time is longer, when high temperature ammonia is more, the 3rd stop valve (11) can be closed, opens the 4th stop valve (13), Ammonia gas disposal process is carried out simultaneously with misting cooling process.During high temperature nitrogen treatment, the engine high-temperature tail gas of nitrogen-containing oxide is introduced by engine bleed port (14), by high temperature Tail gas is flowed into catalyst converter (16) with high temperature ammonia by pump (15), the NH in catalyst converter (16)3High-temperature catalytic is carried out with NOx Reduction reaction produces N2And H2O, caused N2And H2O is discharged outside cabin by external environment port (17).
- A kind of 3. airborne open type spray cooling system using ammonia as cooling medium according to claim 1, it is characterised in that： Nozzle (5) and surface to be cooled (6) are enclosed in spray chamber (7) so that the low temperature ammonia after the completion of spraying flows into cold and returned Receive in heat exchanger (8), reach the effect for saving cooling medium and energy-conservation.
- A kind of 4. airborne open type spray cooling system using ammonia as cooling medium according to claim 1, it is characterised in that： The cold of recovery is used to reduce fuel tank (9) interior fuel oil temperature in the cold recovery exchanger (8), is cooled down for remaining using fuel oil Equipment more sufficient cold is provided.
- A kind of 5. airborne open type spray cooling system using ammonia as cooling medium according to claim 1, it is characterised in that： Contain high temperature catalyst, including but not limited to TiO in the catalyst converter (16)2、Al2O3、ZrO2And SiO2。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710789248.4A CN107360704A (en) | 2017-09-01 | 2017-09-01 | A kind of airborne open type spray cooling system using ammonia as cooling medium |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710789248.4A CN107360704A (en) | 2017-09-01 | 2017-09-01 | A kind of airborne open type spray cooling system using ammonia as cooling medium |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070133173A1 (en) * | 2005-12-13 | 2007-06-14 | Industrial Technology Research Institute | Compact spray cooling module |
| CN102322751A (en) * | 2011-09-01 | 2012-01-18 | 东南大学 | Spray cooling device for cooling heat source with high heat flux |
| CN104684360A (en) * | 2015-02-11 | 2015-06-03 | 南京航空航天大学 | Cooling system and method of airborne heating element based on air expansion refrigeration |
| CN106642855A (en) * | 2016-11-16 | 2017-05-10 | 南京航空航天大学 | Airborne evaporation cycle refrigeration comprehensive heat management system and method and application thereof |
| CN207235329U (en) * | 2017-09-01 | 2018-04-13 | 南京工业大学 | A kind of airborne open type spray cooling system using ammonia as cooling medium |
-
2017
- 2017-09-01 CN CN201710789248.4A patent/CN107360704A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070133173A1 (en) * | 2005-12-13 | 2007-06-14 | Industrial Technology Research Institute | Compact spray cooling module |
| CN102322751A (en) * | 2011-09-01 | 2012-01-18 | 东南大学 | Spray cooling device for cooling heat source with high heat flux |
| CN104684360A (en) * | 2015-02-11 | 2015-06-03 | 南京航空航天大学 | Cooling system and method of airborne heating element based on air expansion refrigeration |
| CN106642855A (en) * | 2016-11-16 | 2017-05-10 | 南京航空航天大学 | Airborne evaporation cycle refrigeration comprehensive heat management system and method and application thereof |
| CN207235329U (en) * | 2017-09-01 | 2018-04-13 | 南京工业大学 | A kind of airborne open type spray cooling system using ammonia as cooling medium |
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Application publication date: 20171117 |
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| WD01 | Invention patent application deemed withdrawn after publication |