CN214757518U - Airborne multi-nozzle spray cooling system applying multi-cold-source composite phase change material heat exchanger and ejector - Google Patents
Airborne multi-nozzle spray cooling system applying multi-cold-source composite phase change material heat exchanger and ejector Download PDFInfo
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- CN214757518U CN214757518U CN202120462814.2U CN202120462814U CN214757518U CN 214757518 U CN214757518 U CN 214757518U CN 202120462814 U CN202120462814 U CN 202120462814U CN 214757518 U CN214757518 U CN 214757518U
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- 239000007921 spray Substances 0.000 title claims abstract description 85
- 239000012782 phase change material Substances 0.000 title claims abstract description 60
- 238000001816 cooling Methods 0.000 title claims abstract description 58
- 239000002131 composite material Substances 0.000 title claims abstract description 41
- 238000005507 spraying Methods 0.000 claims abstract description 61
- 238000005057 refrigeration Methods 0.000 claims abstract description 15
- 239000000446 fuel Substances 0.000 claims abstract description 8
- 230000008859 change Effects 0.000 claims description 48
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 43
- 239000003507 refrigerant Substances 0.000 claims description 23
- 230000001105 regulatory effect Effects 0.000 claims description 19
- 239000007787 solid Substances 0.000 claims description 8
- 239000007788 liquid Substances 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 2
- 239000012188 paraffin wax Substances 0.000 claims description 2
- 239000000498 cooling water Substances 0.000 abstract description 17
- 238000009835 boiling Methods 0.000 abstract description 10
- 230000017525 heat dissipation Effects 0.000 abstract description 8
- 230000004907 flux Effects 0.000 abstract description 6
- 150000001875 compounds Chemical class 0.000 abstract description 3
- 238000004146 energy storage Methods 0.000 abstract description 2
- 238000002347 injection Methods 0.000 abstract 1
- 239000007924 injection Substances 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 17
- 239000000295 fuel oil Substances 0.000 description 12
- 238000009825 accumulation Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 238000001704 evaporation Methods 0.000 description 4
- 230000008020 evaporation Effects 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000009467 reduction Effects 0.000 description 4
- 239000002826 coolant Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000005728 strengthening Methods 0.000 description 2
- 229910001218 Gallium arsenide Inorganic materials 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 238000000889 atomisation Methods 0.000 description 1
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- 230000010354 integration Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
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Abstract
The utility model discloses an use many cold sources composite phase change material heat exchanger and ejector's machine-carried multiinjector spray cooling system belongs to machine-carried high heat flux density equipment cooling field. This patent mainly solves the continuous heat dissipation problem on high heat flux density surface such as radar chip and laser weapon when airborne cold source can't the direct use. This patent uses spray cooling mode cooling high heat density surface, uses ram air as main cold source, uses vortex tube refrigeration case as supplementary cold source, uses the machine-carried fuel as emergent cold source, when waiting to cool off the surface and need cool off, confirms the compound mode of two sets of cold sources according to its temperature variation. Three groups of phase change materials are used as intermediate energy storage media to correspond to the three cold sources. The tail gas of the engine and the hot air are used as an injection gas source, a low-pressure environment is created in the spraying chamber, so that the cooling water is subjected to boiling heat exchange, and the heat exchange in the spraying chamber is enhanced. The system is safe and stable in operation and high in redundancy, and meets the cooling requirement under the airborne complex environment.
Description
Technical Field
The utility model relates to an use many cold sources composite phase change material heat exchanger and ejector's machine-carried multiinjector spray cooling system belongs to machine-carried high heat flux density electronic equipment cooling field.
Background
With the rapid development of airborne radar technology, power amplifier chips have been developed from silicon chips and GaAs chips to 3 rd generation semiconductor GaN chips. Several projects in the U.S. navy and air force showed that the heat flux density of the GaN chip under development reached 500W/cm2The heat flux density of the future chip will exceed 1000W/cm2. Meanwhile, with the continuous improvement of the requirements on the maneuvering performance, stealth performance and defense performance of the military aircraft, the high-power laser technology, the high integration and miniaturization of electronic components and the like are rapidly developed. The laser weapon can generate megawatt-level heat within a few seconds of the firing moment, so that the surface of the laser weapon generates hundreds or even thousands of W/cm2The heat flux density of (1). If no effective measures are taken to reduce the surface temperature of the radar chip and the laser weapon, the working efficiency is greatly reduced if the temperature is low, and electronic devices are burnt if the temperature is high, so that the flight safety is influenced. Therefore, how to efficiently and safely solve the problem of rapid heat dissipation of the radar chip and the airborne equipment has important research significance. The heat exchange capacity of the conventional air cooling and water cooling modes reaches the limit, and the increasingly improved heat dissipation requirements of electronic equipment cannot be met. Spray cooling is a novel cooling mode which decomposes a cooling medium into countless discrete small droplets through atomization, sprays the droplets onto a heating surface and takes away heat through single-phase heat exchange and two-phase heat exchange. The spray cooling technology has a strong application prospect in the field of cooling of airborne equipment.
The patent ZL201721063995.1 provides an airborne turbine intermittent cold storage type laser weapon spray cooling system which is mainly characterized in that a turbine is used as a refrigerating device and a power source, and in the scheme, the cold source is completely provided by the turbine, so that the load of the original turbine refrigerating system of the airplane is increased, and the long-term stable operation of the airplane is not favorable. Patent ZL201821217918.1 has provided an airborne spray cooling system who uses ram air and evaporation refrigeration cycle cooling cycle water, the key feature is, uses ram air as main cold source, uses evaporation refrigeration cycle as supplementary cold source, the key feature of this scheme is that use evaporation refrigeration cycle to provide cold volume for spraying medium, however airborne space is limited, evaporation refrigeration cycle refrigeration volume receives the restriction, use ram air as main cold source simultaneously, when unable ram air, do not have emergent cold source.
Ram air can be introduced when the airplane normally flies at high altitude, so that a natural cold source is provided for a spray cooling system; if the ram air can not be used in an emergency, an emergency cold source airborne fuel can be selectively added. This patent is three rows of nozzles altogether, opens one row or two rows of nozzles respectively according to the heat dissipation demand during normal work, can open another row of urgent nozzles when two rows of nozzles break down. This patent adopts compound phase change material as intermediate medium, and phase change material can store ram air and the cold volume that vortex tube refrigeration case provided when spray cooling device is out of work, treats when cooling surface needs cooling, confirms the compound mode of two sets of cold sources according to its temperature variation. But use this patent to make spray cooling medium recycle, and the addition of emergent cold source has promoted system redundancy, and spray cooling's heat exchange efficiency has been guaranteed to sufficient cold volume.
Disclosure of Invention
The utility model aims at providing an use many cold sources composite phase change material heat exchanger and ejector's machine of taking turns spray cooling system, confirm that external ram air and vortex tube refrigeration case outflow's cold air are main cold source, use machine to carry the fuel as emergent cold source to composite phase change material heat exchanger is middle cold-storage and the cold volume device of release, uses the ejector to reduce spray chamber pressure, and the cooling water takes place boiling heat transfer and strengthens the heat transfer. The utility model discloses help promoting phase change energy storage and high-efficient heat transfer technique in the application of airborne equipment cooling field.
The embodiment of the application provides an airborne multi-nozzle spray cooling system applying a multi-cold-source composite phase change material heat exchanger and an ejector, and the airborne multi-nozzle spray cooling system comprises a fault-free spray cooling system; the fault-free spray cooling system comprises a first spray medium storage tank 1-1, a spray medium circulating pump 2-1, a flow regulating valve 3, a first stop valve 4-1, a second stop valve 4-2, a third stop valve 4-3, a fourth stop valve 4-4, a fifth stop valve 4-5, a sixth stop valve 4-6, a seventh stop valve 4-7, an eighth stop valve 4-8, a ninth stop valve 4-9, a tenth stop valve 4-10, an eleventh stop valve 4-11, a twelfth stop valve 4-12, a thirteenth stop valve 4-13, a flow meter 5, a first row of nozzles 1-2, a second row of nozzles 1-3, a third row of nozzles 1-4, a surface to be cooled 1-5, a spray chamber 1-6, a condenser 1-7, a condenser 1-4, a surface to be cooled 1-5, a spray chamber, The system comprises a ram air inlet 1-8, a first phase-change material heat exchanger 1-9, an engine tail gas bleed port 1-10, an ejector mixed gas inlet 1-11, an ejector nozzle section 1-12, an ejector mixing section 1-13, an exhaust port 1-14, a vortex tube refrigeration box 1-15, a second phase-change heat exchanger 1-16, a first temperature sensing device 7-1 and a second temperature sensing device 7-2;
the spray cavity comprises a first row of nozzles 1-2, a second row of nozzles 1-3 and a third row of nozzles 1-4, and each row is provided with four nozzles; the first phase-change heat exchanger 1-9 is provided with a ram air inlet, a ram air outlet, a spraying medium inlet and a spraying medium outlet; the second phase change heat exchangers 1 to 16 are provided with cold air inlets, cold air outlets, spraying medium inlets and spraying medium outlets; the vortex tube refrigerating boxes 1 to 15 are provided with air-entraining inlets, cold air outlets and hot air outlets; the ejector mixed gas inlet 1-11 is provided with an engine tail gas bleed port 1-10, a hot gas outlet of a vortex tube refrigeration box 1-15 and a cold gas outlet of a second phase change heat exchanger 1-16; the condenser 1-7 is provided with a high-temperature steam inlet, a liquid water outlet, a ram air inlet 1-8 and a ram air outlet;
the outlet of a first spraying medium storage tank 1-1 is connected with the inlet of a spraying medium circulating pump 2-1, the outlet of the spraying medium circulating pump 2-1 is connected with the inlet of a flow regulating valve 3, the outlet of the flow regulating valve 3 is connected with the inlet of a first stop valve 4-1, the outlet of the first stop valve 4-1 is connected with the inlet of a flow meter 5, the outlet of the flow meter 5 is connected with the inlets of a second stop valve 4-2, a third stop valve 4-3 and a fourth stop valve 4-4, the outlet of the second stop valve 4-2 is connected with the inlet of a first row of nozzles 1-2, the outlet of the third stop valve 4-3 is connected with the inlet of a second row of nozzles 1-3, the outlet of the fourth stop valve 4-4 is connected with the inlet of a third row of nozzles 1-4, the first row of nozzles 1-2, Outlets of a second row of nozzles 1-3 and a third row of nozzles 1-4 are arranged above a surface to be cooled 1-5, an interface of a first temperature sensing device 7-1 is arranged at the upper right of the surface to be cooled 1-5, an outlet at the lower side of a spray chamber 1-6 is connected with a first port of a condenser 1-7, a second port of the condenser 1-7 is connected with an inlet of a seventh stop valve 4-7 and an inlet of an eighth stop valve 4-8, an outlet of the seventh stop valve 4-7 is connected with a first port of a first phase change heat exchanger 1-9, a second port of the first phase change heat exchanger 1-9 is connected with an outlet of the eighth stop valve 4-8, an inlet of a thirteenth stop valve 4-13 and an inlet of a twelfth stop valve 4-12, an interface of a second temperature sensing device 7-2 is arranged at the lower right of the first phase change heat exchanger 1-9, the outlet of the twelfth stop valve 4-12 is connected with the first port of the second phase heat exchanger 1-16, and the second port of the second phase heat exchanger 1-16 is connected with the outlet of the thirteenth stop valve 4-13 and the inlet of the first spraying medium storage tank 1-1;
a third port of the condenser 1-7 is connected with an inlet of a fifth stop valve 4-5, an outlet of the fifth stop valve 4-5 is connected with a ram air inlet 1-8, a ram air inlet 1-8 is connected with an inlet of a sixth stop valve 4-6, an outlet of the sixth stop valve 4-6 is connected with a third port of a first phase change heat exchanger 1-9, a fourth port of the first phase change heat exchanger 1-9 is connected with an inlet of a ninth stop valve 4-9, an outlet of the ninth stop valve 4-9 is connected with an inlet of a vortex tube refrigerating box 1-15, a cold air outlet of the vortex tube refrigerating box 1-15 is connected with a third port of a second phase change heat exchanger 1-16, a hot air outlet of the vortex tube refrigerating box 1-15 is connected with an inlet of a tenth stop valve 4-10, an outlet of the tenth stop valve 4-10 is connected with an ejector mixed gas inlet 1-11, an ejector mixed gas inlet 1-11 is connected with an outlet of an eleventh stop valve 4-11, an inlet of the eleventh stop valve 4-11 is connected with an engine tail gas bleed port 1-10, an ejector mixed gas inlet 1-11 is connected with an inlet of an ejector nozzle section 1-12, an outlet of the ejector nozzle section 1-12 is connected with a right inlet of a spray chamber 1-6, a left outlet of the spray chamber 1-6 is connected with an inlet of an ejector mixing section 1-13, and an outlet of the ejector mixing section 1-13 is connected with an inlet of an exhaust port 1-14;
comprises an emergency spray cooling system; the emergency spray cooling system comprises a second spray medium storage tank 6-1, a spray medium circulating pump 2-1, a flow regulating valve 3, a first stop valve 4-1, a second stop valve 4-2, a third stop valve 4-3, a fourth stop valve 4-4, a fourteenth stop valve 4-14, a fifteenth stop valve 4-15, a flow meter 5, a first row of nozzles 1-2, a second row of nozzles 1-3, a third row of nozzles 1-4, a surface to be cooled 1-5, a spray chamber 1-6, a third phase heat exchanger 6-2, a heat exchanger 6-3, an oil pump 2-2, an oil tank 6-4, a compressor 6-5 and a throttle valve 6-6;
wherein, the third phase inverter 6-2 is provided with a spraying medium inlet, a spraying medium outlet, a refrigerant inlet and a refrigerant outlet; the heat exchanger 6-3 is provided with an onboard fuel inlet, an onboard fuel outlet, a refrigerant inlet and a refrigerant outlet; the oil tank 6-4 is provided with an oil inlet and an oil outlet;
an outlet of the second spraying medium storage tank 6-1 is connected with an inlet of a fourteenth stop valve 4-14, an outlet of the fourteenth stop valve 4-14 is connected with an inlet of a spraying medium circulating pump 2-1, an outlet of the spraying medium circulating pump 2-1 is connected with an inlet of a flow regulating valve 3, an outlet of the flow regulating valve 3 is connected with an inlet of a first stop valve 4-1, an outlet of the first stop valve 4-1 is connected with an inlet of a flow meter 5, an outlet of the flow meter 5 is connected with inlets of a second stop valve 4-2, a third stop valve 4-3 and a fourth stop valve 4-4, an outlet of the second stop valve 4-2 is connected with an inlet of the first row of nozzles 1-2, an outlet of the third stop valve 4-3 is connected with an inlet of the second row of nozzles 1-3, an outlet of the fourth stop valve 4-4 is connected with an inlet of the third row of nozzles 1-4, outlets of a first row of nozzles 1-2, a second row of nozzles 1-3 and a third row of nozzles 1-4 are arranged above a surface to be cooled 1-5, an interface of a first temperature sensing device 7-1 is arranged at the upper right of the surface to be cooled 1-5, an outlet at the lower side of a spray chamber 1-6 is connected with a first port of a third phase change heat exchanger 6-2, and a second port of the third phase change heat exchanger 6-2 is connected with an inlet of a second spraying medium storage tank 6-1;
an inlet of the fifteenth stop valve 4-15 is connected with an inlet of the oil tank 6-4, an outlet of the oil tank 6-4 is connected with an inlet of the oil pump 2-2, an outlet of the oil pump 2-2 is connected with a first port of the heat exchanger 6-3, a second port of the heat exchanger 6-3 is connected with an outlet of the fifteenth stop valve 4-15, a third port of the heat exchanger 6-3 is connected with an outlet of the compressor 6-5, an inlet of the compressor 6-5 is connected with a third port of the third phase change heat exchanger 6-2, a fourth port of the heat exchanger 6-3 is connected with an inlet of the throttle valve 6-6, and an outlet of the throttle valve 6-6 is connected with a fourth port of the third phase change heat exchanger 6-2.
The first row of nozzles 1-2, the second row of nozzles 1-3, the third row of nozzles 1-4 and the surface to be cooled 1-5 are all enclosed in a spray chamber 1-6.
The first phase change heat exchanger 1-9, the second phase change heat exchanger 1-16 and the third phase change heat exchanger 6-2 are all made of low-melting-point metal and paraffin composite phase change materials.
The refrigerant is R22, R134a, or R407C.
The phase change materials in the first phase change heat exchanger 1-9, the second phase change heat exchanger 1-16 and the third phase change heat exchanger 6-2 are in a liquid state after releasing cold energy and in a solid state after storing cold.
The heat exchanger 6-3 and the condenser 1-7 are plate heat exchangers, the vortex tube refrigerating box 1-15 comprises a plurality of vortex tubes, and the number of the vortex tubes is designed according to the actual cooling capacity of the airplane.
The utility model discloses an use many cold sources composite phase change material heat exchanger and ejector's machine-carried multiinjector spray cooling system includes following process during the operation:
ram air heat exchange process: opening a first stop valve 4-1, a second stop valve 4-2, a third stop valve 4-3, a fourth stop valve 4-4, a fifth stop valve 4-5, a sixth stop valve 4-6, a seventh stop valve 4-7, a ninth stop valve 4-9, a tenth stop valve 4-10, an eleventh stop valve 4-11, a twelfth stop valve 4-12, closing an eighth stop valve 4-8, a thirteenth stop valve 4-13, and a throttle valve 6-6, allowing external low-temperature ram air to enter a first phase change heat exchanger 1-9 through a part of a ram air inlet 1-8, transferring cold energy to a composite phase change material in the first phase change heat exchanger 1-9, allowing the ram air to pass through the first phase change heat exchanger 1-9 and then rise in temperature to become hot air, allowing the hot air to flow into a vortex tube refrigeration box 1-15, cold air flowing out of the vortex tube refrigerating box 1-15 enters a second phase change heat exchanger 1-16, cold energy is transferred to a composite phase change material in the second phase change heat exchanger 1-16, the cold air is heated to become hot air after passing through the second phase change heat exchanger 1-16, the hot air flows into the external environment, the hot air flowing out of the vortex tube refrigerating box 1-15 and high-pressure high-speed tail gas introduced from an engine tail gas bleed port 1-10 are sprayed into a right inlet of a spraying chamber 1-6 through an ejector mixed gas inlet 1-11, the high-pressure high-speed tail gas carries the hot air flowing out of the vortex tube refrigerating box 1-15 to take away gas in the spraying chamber 1-6, so that the pressure in the spraying chamber 1-6 is reduced, and the boiling point of water in the spraying chamber 1-6 is reduced; mixed gas consisting of tail gas, hot air and gas in the spray chamber 1-6 enters the ejector mixing section 1-13 from the left outlet of the spray chamber 1-6, is fully mixed and depressurized in the ejector mixing section 1-13, and is discharged out of the airplane through the exhaust port 1-14. The other part of ram air enters a third port of the condenser 1-7, cold energy is transferred to high-temperature steam formed after boiling heat exchange of cooling water in the spray chamber 1-6 in the condenser 1-7, the ram air is heated by the condenser 1-7 to become hot air, and the hot air flows into the external environment;
the heat exchange process of the airborne fuel oil is as follows: when ram air and cold air flowing out of a vortex tube refrigeration box 1-15 are used as cold sources, pressure reduction and heat exchange enhancement are carried out by using ejectors 1-11, 1-12, 1-13 and 1-14, and cold accumulation and cold release multi-nozzle airborne spray cooling system pipelines of composite phase change material heat exchangers 1-9, 1-16 and 6-2 are used for leakage, a first stop valve 4-1, a second stop valve 4-2, a third stop valve 4-3, a fourth stop valve 4-4, a fourteenth stop valve 4-14, a fifteenth stop valve 4-14 and a throttle valve 6-6 are opened, a fifth stop valve 4-5, a sixth stop valve 4-6, a seventh stop valve 4-7, an eighth stop valve 4-8, a ninth stop valve 4-9 and a tenth stop valve 4-10 are closed, The eleventh stop valve 4-11, the twelfth stop valve 4-12 and the thirteenth stop valve 4-13 use the onboard fuel oil as a cold source to absorb the heat released by the refrigerant flowing out after the cold accumulation of the third phase heat exchanger 6-2, and the composite phase change material transfers the cold to the cooling water; low-temperature fuel oil in the oil tank 6-4 enters the heat exchanger 6-3 through the fifteenth stop valve 4-15, exchanges heat with a refrigerant in the heat exchanger 6-3, the temperature of the low-temperature fuel oil is raised to become high-temperature fuel oil after passing through the heat exchanger 6-3, the high-temperature fuel oil flows into the oil tank 6-4 to complete circulation, the refrigerant is condensed and released in the heat exchanger 6-3, the refrigerant is decompressed by the throttle valve 6-6 to enter the third phase converter 6-2 to be evaporated and absorbed, cold energy is transmitted to the third phase converter 6-2 to be stored for cold, and the refrigerant is driven by the compressor 6-5 to be heated and boosted to flow into the heat exchanger 6-3 to complete circulation;
spray cooling process: when the temperature of the surface to be cooled 1-5 is detected to be higher than 80 ℃ by the first temperature sensor 7-1 and a large amount of heat dissipation is needed when the system normally operates, the water pump 2-1, the first stop valve 4-1, the second stop valve 4-2, the third stop valve 4-3, the fifth stop valve 4-5, the sixth stop valve 4-6, the seventh stop valve 4-7, the ninth stop valve 4-9, the tenth stop valve 4-10, the eleventh stop valve 4-11, the twelfth stop valve 4-12 are opened, the eighth stop valve 4-8, the thirteenth stop valve 4-13, the fourteenth stop valve 4-14 and the fifteenth stop valve are closed, and cold water in the first spraying medium storage tank 1-1 passes through the water pump 2-1, the water pump 4-2, the water pump 4-1, the second stop valve 4-2, the third stop valve 4-3, the fifth stop valve 4-9, the water pump 4-10, the eleventh stop valve 4-11 and the twelfth stop valve 4-12, The high-temperature steam after pressure reduction and enhanced boiling heat exchange of the ejector flows into the condenser 1-7 through the lower side outlet of the spray chamber 1-6, is condensed and heat exchanged with ram air in the condenser 1-7 to form low-temperature water, the low-temperature water flows into the first phase-change heat exchanger 1-9 through the seventh stop valve 4-7, is cooled and heat exchanged with a composite phase-change material in the first phase-change heat exchanger 1-9, and flows into the second phase-change heat exchanger 1-16 through the twelfth stop valve 4-12, exchanging heat with the composite phase change material in a second phase change heat exchanger 1-16, cooling again, and making the cooled cooling water flow into a first spraying medium storage tank 1-1 to complete circulation;
when the temperature of the surface to be cooled is measured to be lower than 80 ℃ by the first temperature sensor 7-1, the water pump 2-1, the first stop valve 4-1, the third stop valve 4-3, the fifth stop valve 4-5, the sixth stop valve 4-6, the seventh stop valve 4-7, the ninth stop valve 4-9, the tenth stop valve 4-10, the eleventh stop valve 4-11 and the thirteenth stop valve 4-13 are started when normal heat dissipation is needed, the second stop valve 4-2, the eighth stop valve 4-8, the twelfth stop valve 4-12, the fourteenth stop valve 4-14 and the fifteenth stop valve 4-15 are closed, cold water in the first spraying medium storage tank 1-1 flows into the first discharge nozzle 1-2 after passing through the water pump 2-1, the flow regulating valve 3, the first stop valve 4-1, the second stop valve 4-2 and the flow meter 5, atomizing in a first row of nozzles 1-2 and then spraying to a surface to be cooled 1-5, reducing the temperature of the surface to be cooled 1-5, reducing the pressure of a sprayer and strengthening boiling heat exchange, enabling high-temperature steam to flow into a condenser 1-7 through an outlet at the lower side of a spraying chamber 1-6, condensing and exchanging heat with ram air in the condenser 1-7 to obtain low-temperature water, enabling the low-temperature water to flow into a first phase-change heat exchanger 1-9 through a seventh stop valve 4-7, exchanging heat with a composite phase-change material in the first phase-change heat exchanger 1-9 to reduce the temperature, and enabling cooling water to flow into a first spraying medium storage tank 1-1 through a thirteenth stop valve 4-13 to complete circulation;
when a system pipeline leaks and the first row of nozzles 1-2 and the second row of nozzles 1-3 are in failure, the first stop valve 4-1, the fourth stop valve 4-4, the fourteenth stop valve 4-14, the fifteenth stop valve 4-15 and the throttle valve 6-6 are opened, the second stop valve 4-2, the third stop valve 4-3, the fifth stop valve 4-5, the sixth stop valve 4-6, the seventh stop valve 4-7, the eighth stop valve 4-8, the ninth stop valve 4-9, the tenth stop valve 4-10, the eleventh stop valve 4-11, the twelfth stop valve 4-12 and the thirteenth stop valve 4-13 are closed, and cold water in the second spraying medium storage tank 6-1 passes through the water pump 2-1, the flow regulating valve 3 and the first stop valve 4-1, The second stop valve 4-2 and the flow meter 5 flow into the third row of nozzles 1-4, the atomized water is sprayed to the surface to be cooled 1-5 in the third row of nozzles 1-4, the temperature of the surface to be cooled 1-5 is reduced, the hot water after heat exchange is finished flows into the third phase converter 6-2 through the lower side outlet of the atomizing chamber 1-6, the hot water and the composite phase change material in the third phase converter 6-2 exchange heat and reduce the temperature to be cooling water, and the cooling water flows into the second spraying medium storage tank 6-1 to finish circulation;
the phase change material cold accumulation process: when the spray cooling is not performed, the seventh stop valve 4-7 is closed, the first phase-change material 1-9 and ram air introduced from the ram air inlet 1-8 are changed into a low-temperature solid state after heat exchange, and the composite phase-change material stores cold; closing the twelfth stop valve 4-12, changing the second phase change material 1-16 into a low-temperature solid state after heat exchange with the refrigerant, and storing cold by using the composite phase change material; and closing the fourteenth stop valve 4-14, and changing the third phase change material 6-2 into a low-temperature solid state after heat exchange with the refrigerant, so that the composite phase change material can store cold.
The first row of nozzles 1-2 and the second row of nozzles 1-3 spray atomized cooling water to the surface to be cooled 1-5 singly or simultaneously according to the feedback of the first temperature sensing device 7-1, the third row of nozzles 1-4 are used as spare nozzles, and the third row of nozzles 1-4 spray atomized cooling water to the surface to be cooled 1-5 when the first row of nozzles 1-2 and the second row of nozzles 1-3 are in failure.
Drawings
Fig. 1 is a schematic diagram of the present invention.
Reference designations in FIG. 1: 1-1 part of a first spraying medium storage tank, 2-1 part of a spraying medium circulating pump, 3 parts of a flow regulating valve, 4-1 part of a first stop valve, 4-2 parts of a second stop valve, 4-3 parts of a third stop valve, 4-4 parts of a fourth stop valve, 4-5 parts of a fifth stop valve, 4-6 parts of a sixth stop valve, 4-7 parts of a seventh stop valve, 4-8 parts of an eighth stop valve, 4-9 parts of a ninth stop valve, 4-10 parts of a tenth stop valve, 4-11 parts of an eleventh stop valve, 4-12 parts of a twelfth stop valve, 4-13 parts of a thirteenth stop valve, 4-14 parts of a fourteenth stop valve, 4-15 parts of a fifteenth stop valve, 5 parts of a flow meter, 1-2 parts of a first row of nozzles, 1-3 parts of a second row of nozzles, 1-4 parts of a third row of nozzles, 1-5 parts of surface to be cooled, 1-6 parts of spray chamber, 1-7 parts of condenser, 1-8 parts of ram air inlet, 1-9 parts of first phase change material heat exchanger, 1-10 parts of engine tail gas bleed port, 1-11 parts of ejector mixed gas inlet, 1-12 parts of ejector nozzle section, 1-13 parts of ejector mixed section, 1-14 parts of exhaust port, 1-15 parts of vortex tube refrigerating box, 1-16 parts of a second phase change heat exchanger, 7-1 parts of a first temperature sensing device, 7-2 parts of a second temperature sensing device, 6-1 parts of a second spraying medium storage tank, 6-2 parts of a third phase change heat exchanger, 6-3 parts of a heat exchanger, 2-2 parts of an oil pump, 6-4 parts of an oil tank, 6-5 parts of a compressor and 6-6 parts of a throttle valve.
Detailed Description
As shown in figure 1, the airborne multi-nozzle spray cooling system applying the multi-cold-source composite phase change material heat exchanger and the ejector mainly comprises a first spray medium storage tank 1-1, a spray medium circulating pump 2-1, a flow regulating valve 3, a first stop valve 4-1, a second stop valve 4-2, a third stop valve 4-3, a fourth stop valve 4-4, a fifth stop valve 4-5, a sixth stop valve 4-6, a seventh stop valve 4-7, an eighth stop valve 4-8, a ninth stop valve 4-9, a tenth stop valve 4-10, an eleventh stop valve 4-11, a twelfth stop valve 4-12, a thirteenth stop valve 4-13, a fourteenth stop valve 4-14, a fifteenth stop valve 4-15, a flow meter 5, a first nozzle 1-2, a second nozzle and a third nozzle, 1-3 parts of second row of nozzles, 1-4 parts of third row of nozzles, 1-5 parts of surface to be cooled, 1-6 parts of spray chamber, 1-7 parts of condenser, 1-8 parts of ram air inlet, 1-9 parts of first phase change material heat exchanger, 1-10 parts of engine tail gas bleed port, 1-11 parts of ejector mixed gas inlet, 1-12 parts of ejector nozzle section, 1-13 parts of ejector mixed section and 1-14 parts of exhaust port, the system comprises 1-15 parts of a vortex tube refrigerating box, 1-16 parts of a second phase heat exchanger, 7-1 parts of a first temperature sensing device, 7-2 parts of a second temperature sensing device, 6-1 parts of a second spraying medium storage tank, 6-2 parts of a third phase heat exchanger, 6-3 parts of a heat exchanger, 2-2 parts of an oil pump, 6-4 parts of an oil tank, 6-5 parts of a compressor and 6-6 parts of a throttle valve.
Before the airplane takes off, the running time of two sets of fault-free and emergency spray cooling systems is obtained according to the endurance time of the airplane and the cooling time required by equipment, and quantitative water is filled in the first spray medium storage tank 1-1 and the second spray medium storage tank 6-1 according to the running time. At this time, the flow regulating valve 3, the first stop valve 4-1, the second stop valve 4-2, the third stop valve 4-3, the fourth stop valve 4-4, the fifth stop valve 4-5, the sixth stop valve 4-6, the seventh stop valve 4-7, the eighth stop valve 4-8, the ninth stop valve 4-9, the tenth stop valve 4-10, the eleventh stop valve 4-11, the twelfth stop valve 4-12, the thirteenth stop valve 4-13, the fourteenth stop valve 4-14 and the fifteenth stop valve 4-15 are all in a closed state.
After the airplane takes off, opening a first stop valve 4-1, a second stop valve 4-2, a third stop valve 4-3, a fourth stop valve 4-4, a fifth stop valve 4-5, a sixth stop valve 4-6, a seventh stop valve 4-7, a ninth stop valve 4-9, a tenth stop valve 4-10, an eleventh stop valve 4-11 and a twelfth stop valve 4-12, closing an eighth stop valve 4-8, a thirteenth stop valve 4-13 and a throttle valve 6-6, allowing external low-temperature ram air to enter a first phase change heat exchanger 1-9 through a part of a ram air inlet 1-8, transmitting cold energy of the first phase change heat exchanger 1-9 to a composite phase change material, and allowing the ram air to be heated to become hot air after passing through the first phase change heat exchanger 1-9, hot air flows into the vortex tube refrigerating boxes 1-15, cold air flowing out of the vortex tube refrigerating boxes 1-15 enters the second phase change heat exchanger 1-16, cold energy is transferred to the composite phase change material in the second phase change heat exchanger 1-16, the temperature of cold air is increased to be changed into hot air after the cold air passes through the second phase change heat exchanger 1-16, the hot air flows into the external environment, the hot air flowing out of the vortex tube refrigerating box 1-15 and high-pressure high-speed tail gas introduced from the engine tail gas bleed port 1-10 are sprayed into a right inlet of the spraying chamber 1-6 through the ejector mixed gas inlet 1-11, the high-pressure high-speed tail gas carries the hot air flowing out of the vortex tube refrigerating box 1-15 to take away gas in the spraying chamber 1-6, so that the pressure in the spraying chamber 1-6 is reduced, and the boiling point of water in the spraying chamber 1-6 is reduced; mixed gas consisting of tail gas, hot air and gas in the spray chamber 1-6 enters the ejector mixing section 1-13 from the left outlet of the spray chamber 1-6, is fully mixed and depressurized in the ejector mixing section 1-13, and is discharged out of the airplane through the exhaust port 1-14. The other part of ram air enters a third port of the condenser 1-7, cold energy is transferred to high-temperature steam formed after boiling heat exchange of cooling water in the spray chamber 1-6 in the condenser 1-7, the ram air is heated by the condenser 1-7 to become hot air, and the hot air flows into the external environment. When ram air and cold air flowing out of a vortex tube refrigeration box 1-15 are used as cold sources, pressure reduction and heat exchange enhancement are carried out by using ejectors 1-11, 1-12, 1-13 and 1-14, and cold accumulation and cold release multi-nozzle airborne spray cooling system pipelines of composite phase change material heat exchangers 1-9, 1-16 and 6-2 are used for leakage, a first stop valve 4-1, a second stop valve 4-2, a third stop valve 4-3, a fourth stop valve 4-4, a fourteenth stop valve 4-14, a fifteenth stop valve 4-14 and a throttle valve 6-6 are opened, a fifth stop valve 4-5, a sixth stop valve 4-6, a seventh stop valve 4-7, an eighth stop valve 4-8, a ninth stop valve 4-9 and a tenth stop valve 4-10 are closed, The eleventh stop valve 4-11, the twelfth stop valve 4-12 and the thirteenth stop valve 4-13 use the onboard fuel oil as a cold source to absorb the heat released by the refrigerant flowing out after the cold accumulation of the third phase heat exchanger 6-2, and the composite phase change material transfers the cold to the cooling water; the low-temperature fuel oil in the oil tank 6-4 enters the heat exchanger 6-3 through the fifteenth stop valve 4-15, exchanges heat with the refrigerant in the heat exchanger 6-3, the temperature of the low-temperature fuel oil is increased after passing through the heat exchanger 6-3 to become high-temperature fuel oil, the high-temperature fuel oil flows into the oil tank 6-4 to complete circulation, the refrigerant is condensed in the heat exchanger 6-3 to release heat, is reduced in pressure by the throttle valve 6-6 to enter the third phase heat converter 6-2 to evaporate and absorb heat, the cold energy is transmitted to the third phase heat converter 6-2 to be stored for cold, and the refrigerant is driven by the compressor 6-5 to be heated, increased in pressure and flows into the heat exchanger 6-3 to complete circulation.
After the airplane takes off, when electronic equipment or other surfaces need to be cooled, when the first temperature sensor 7-1 detects that the temperature of 1-5 parts of the surface to be cooled is higher than 80 ℃, and a large amount of heat dissipation is needed, the water pump 2-1, the first stop valve 4-1, the second stop valve 4-2, the third stop valve 4-3, the fifth stop valve 4-5, the sixth stop valve 4-6, the seventh stop valve 4-7, the ninth stop valve 4-9, the tenth stop valve 4-10, the eleventh stop valve 4-11, the twelfth stop valve 4-12 are started, the eighth stop valve 4-8, the thirteenth stop valve 4-13, the fourteenth stop valve 4-14 and the fifteenth stop valve are closed, and cold water in the first spraying medium storage tank 1-1 passes through the water pump 2-1, the cold water passes through the eleventh stop valve 4-12, The high-temperature steam after pressure reduction and enhanced boiling heat exchange of the ejector flows into the condenser 1-7 through the lower side outlet of the spray chamber 1-6, is condensed and heat exchanged with ram air in the condenser 1-7 to form low-temperature water, the low-temperature water flows into the first phase-change heat exchanger 1-9 through the seventh stop valve 4-7, is cooled and heat exchanged with a composite phase-change material in the first phase-change heat exchanger 1-9, and flows into the second phase-change heat exchanger 1-16 through the twelfth stop valve 4-12, exchanging heat with the composite phase change material in a second phase change heat exchanger 1-16, cooling again, and making the cooled cooling water flow into a first spraying medium storage tank 1-1 to complete circulation;
when the temperature of the surface to be cooled is measured to be lower than 80 ℃ by the first temperature sensor 7-1, the water pump 2-1, the first stop valve 4-1, the third stop valve 4-3, the fifth stop valve 4-5, the sixth stop valve 4-6, the seventh stop valve 4-7, the ninth stop valve 4-9, the tenth stop valve 4-10, the eleventh stop valve 4-11 and the thirteenth stop valve 4-13 are started when normal heat dissipation is needed, the second stop valve 4-2, the eighth stop valve 4-8, the twelfth stop valve 4-12, the fourteenth stop valve 4-14 and the fifteenth stop valve 4-15 are closed, cold water in the first spraying medium storage tank 1-1 flows into the first discharge nozzle 1-2 after passing through the water pump 2-1, the flow regulating valve 3, the first stop valve 4-1, the second stop valve 4-2 and the flow meter 5, atomizing in a first row of nozzles 1-2 and then spraying to a surface to be cooled 1-5, reducing the temperature of the surface to be cooled 1-5, reducing the pressure of a sprayer and strengthening boiling heat exchange, enabling high-temperature steam to flow into a condenser 1-7 through an outlet at the lower side of a spraying chamber 1-6, condensing and exchanging heat with ram air in the condenser 1-7 to obtain low-temperature water, enabling the low-temperature water to flow into a first phase-change heat exchanger 1-9 through a seventh stop valve 4-7, exchanging heat with a composite phase-change material in the first phase-change heat exchanger 1-9 to reduce the temperature, and enabling cooling water to flow into a first spraying medium storage tank 1-1 through a thirteenth stop valve 4-13 to complete circulation;
when a system pipeline leaks and the first row of nozzles 1-2 and the second row of nozzles 1-3 are in failure, opening the first stop valve 4-1, the fourth stop valve 4-4, the fourteenth stop valve 4-14, the fifteenth stop valve 4-15 and the throttle valve 6-6, closing the second stop valve 4-2, the third stop valve 4-3, the fifth stop valve 4-5, the sixth stop valve 4-6, the seventh stop valve 4-7, the eighth stop valve 4-8, the ninth stop valve 4-9, the tenth stop valve 4-10, the eleventh stop valve 4-11, the twelfth stop valve 4-12 and the thirteenth stop valve 4-13, and enabling cold water in the second spraying medium storage tank 6-1 to pass through the water pump 2-1, the flow regulating valve 3 and the first stop valve 4-1, The second stop valve 4-2 and the flow meter 5 flow into the third row of nozzles 1-4, the atomized water is sprayed to the surface to be cooled 1-5 in the third row of nozzles 1-4, the temperature of the surface to be cooled 1-5 is reduced, the hot water after heat exchange is finished flows into the third phase converter 6-2 through the lower side outlet of the atomizing chamber 1-6, the hot water and the composite phase change material in the third phase converter 6-2 exchange heat and reduce the temperature to be cooling water, and the cooling water flows into the second spraying medium storage tank 6-1 to finish circulation;
when the composite phase change material needs to store cold, the seventh stop valve 4-7 is closed, the first phase change material 1-9 and ram air introduced from the ram air inlet 1-8 are changed into a low-temperature solid state after heat exchange, and the composite phase change material stores cold; closing the twelfth stop valve 4-12, changing the second phase change material 1-16 into a low-temperature solid state after heat exchange with the refrigerant, and storing cold by using the composite phase change material; closing the fourteenth stop valve 4-14, and changing the third phase change material 6-2 into a low-temperature solid state after heat exchange with the refrigerant, wherein the composite phase change material stores cold;
according to the airborne multi-nozzle spray cooling system using the multi-cold-source composite phase change material heat exchanger and the ejector, water is used as a cooling medium, and the surfaces of a chip and electronic equipment are not corroded and polluted; the external ram air is used as a main cold source, and the airborne fuel oil is used as an emergency cold source. The introduction of the onboard fuel causes the leakage of the pipeline, and when ram air cannot be normally utilized, the redundancy and the reliability of the spray cooling system are ensured. The use of a spare nozzle also increases the reliability of the system when a nozzle fails. The outside ram air and the cold air flowing out of the vortex tube refrigerating box correspond to the two phase-change material heat exchangers respectively, are matched and used according to different surface temperatures, effectively control the water temperature and ensure the heat exchange performance of spray cooling. When ram air is used as a cold source, the ejector is used for reducing the pressure of the spraying chamber, cooling water is boiled for heat exchange, and the spraying heat exchange effect is enhanced. The introduction of the composite phase-change material enables the system to still accumulate cold energy into the phase-change material when spray cooling does not work, and the spray cooling device can be conveniently started at any time.
Claims (6)
1. Use many cold sources composite phase change material heat exchanger and ejector's machine-carried multiinjector spray cooling system, its characterized in that:
comprises a fault-free spray cooling system; the fault-free spray cooling system comprises a first spray medium storage tank (1-1), a spray medium circulating pump (2-1), a flow regulating valve (3), a first stop valve (4-1), a second stop valve (4-2), a third stop valve (4-3), a fourth stop valve (4-4), a fifth stop valve (4-5), a sixth stop valve (4-6), a seventh stop valve (4-7), an eighth stop valve (4-8), a ninth stop valve (4-9), a tenth stop valve (4-10), an eleventh stop valve (4-11), a twelfth stop valve (4-12), a thirteenth stop valve (4-13), a flow meter (5), a first row of nozzles (1-2), a second row of nozzles (1-3), a third row of nozzles (1-4), The device comprises a surface to be cooled (1-5), a spraying chamber (1-6), a condenser (1-7), a ram air inlet (1-8), a first phase-change material heat exchanger (1-9), an engine tail gas bleed port (1-10), an ejector mixed gas inlet (1-11), an ejector nozzle section (1-12), an ejector mixing section (1-13), an exhaust port (1-14), a vortex tube refrigeration box (1-15), a second phase-change heat exchanger (1-16), a first temperature sensing device (7-1) and a second temperature sensing device (7-2);
wherein, the spray cavity comprises a first row of nozzles (1-2), a second row of nozzles (1-3) and a third row of nozzles (1-4), and each row is provided with four nozzles; the first phase change heat exchanger (1-9) is provided with a ram air inlet, a ram air outlet, a spraying medium inlet and a spraying medium outlet; the second phase change heat exchanger (1-16) is provided with a cold air inlet, a cold air outlet, a spraying medium inlet and a spraying medium outlet; the vortex tube refrigerating box (1-15) is provided with a gas-guiding inlet, a cold air outlet and a hot air outlet; the ejector mixed gas inlet (1-11) is provided with an engine tail gas bleed port (1-10), a hot gas outlet of a vortex tube refrigeration box (1-15) and a cold gas outlet of a second phase inverter (1-16); the condenser (1-7) is provided with a high-temperature steam inlet, a liquid water outlet, a ram air inlet and a ram air outlet;
an outlet of a first spraying medium storage tank (1-1) is connected with an inlet of a spraying medium circulating pump (2-1), an outlet of the spraying medium circulating pump (2-1) is connected with an inlet of a flow regulating valve (3), an outlet of the flow regulating valve (3) is connected with an inlet of a first stop valve (4-1), an outlet of the first stop valve (4-1) is connected with an inlet of a flow meter (5), an outlet of the flow meter (5) is connected with inlets of a second stop valve (4-2), a third stop valve (4-3) and a fourth stop valve (4-4), an outlet of the second stop valve (4-2) is connected with an inlet of a first row of nozzles (1-2), an outlet of the third stop valve (4-3) is connected with an inlet of a second row of nozzles (1-3), and an outlet of the fourth stop valve (4-4) is connected with an inlet of the third row of nozzles (1-4), outlets of a first row of nozzles (1-2), a second row of nozzles (1-3) and a third row of nozzles (1-4) are arranged above a surface to be cooled (1-5), an interface of a first temperature sensing device (7-1) is arranged at the right upper side of the surface to be cooled (1-5), an outlet at the lower side of a spray chamber (1-6) is connected with a first port of a condenser (1-7), a second port of the condenser (1-7) is connected with an inlet of a seventh stop valve (4-7) and an inlet of an eighth stop valve (4-8), an outlet of the seventh stop valve (4-7) is connected with a first port of a first phase-change heat exchanger (1-9), a second port of the first phase-change heat exchanger (1-9) is connected with an outlet of the eighth stop valve (4-8), an inlet of a thirteenth stop valve (4-13), Inlets of a twelfth stop valve (4-12) are connected, an interface of a second temperature sensing device (7-2) is arranged at the right lower part of the first phase change heat exchanger (1-9), an outlet of the twelfth stop valve (4-12) is connected with a first port of a second phase change heat exchanger (1-16), and a second port of the second phase change heat exchanger (1-16) is connected with an outlet of a thirteenth stop valve (4-13) and an inlet of a first spraying medium storage tank (1-1);
a third port of the condenser (1-7) is connected with an inlet of a fifth stop valve (4-5), an outlet of the fifth stop valve (4-5) is connected with a ram air inlet (1-8), the ram air inlet (1-8) is connected with an inlet of a sixth stop valve (4-6), an outlet of the sixth stop valve (4-6) is connected with a third port of a first phase-change heat exchanger (1-9), a fourth port of the first phase-change heat exchanger (1-9) is connected with an inlet of a ninth stop valve (4-9), an outlet of the ninth stop valve (4-9) is connected with an inlet of a vortex tube refrigerating box (1-15), a cold air outlet of the vortex tube refrigerating box (1-15) is connected with a third port of a second phase-change heat exchanger (1-16), a hot air outlet of the vortex tube refrigerating box (1-15) is connected with an inlet of a tenth stop valve (4-10), an outlet of the tenth stop valve (4-10) is connected with an ejector mixed gas inlet (1-11), the ejector mixed gas inlet (1-11) is connected with an outlet of the eleventh stop valve (4-11), an inlet of the eleventh stop valve (4-11) is connected with an engine tail gas bleed port (1-10), the ejector mixed gas inlet (1-11) is connected with an inlet of an ejector nozzle section (1-12), an outlet of the ejector nozzle section (1-12) is connected with a right inlet of a spray chamber (1-6), a left outlet of the spray chamber (1-6) is connected with an inlet of an ejector mixing section (1-13), and an outlet of the ejector mixing section (1-13) is connected with an inlet of an exhaust port (1-14);
comprises an emergency spray cooling system; the emergency spray cooling system comprises a second spray medium storage tank (6-1), a spray medium circulating pump (2-1), a flow regulating valve (3), a first stop valve (4-1), a second stop valve (4-2), a third stop valve (4-3), a fourth stop valve (4-4), a fourteenth stop valve (4-14), a fifteenth stop valve (4-15), a flowmeter (5), a first row of nozzles (1-2), a second row of nozzles (1-3), a third row of nozzles (1-4), a surface to be cooled (1-5), a spray chamber (1-6), a third phase heat exchanger (6-2), a heat exchanger (6-3), an oil pump (2-2), an oil tank (6-4), a compressor (6-5), A throttle valve (6-6);
wherein the third phase inverter (6-2) is provided with a spraying medium inlet, a spraying medium outlet, a refrigerant inlet and a refrigerant outlet; the heat exchanger (6-3) is provided with an onboard fuel inlet, an onboard fuel outlet, a refrigerant inlet and a refrigerant outlet; the oil tank (6-4) is provided with an oil inlet and an oil outlet;
the outlet of the second spraying medium storage tank (6-1) is connected with the inlet of a fourteenth stop valve (4-14), the outlet of the fourteenth stop valve (4-14) is connected with the inlet of a spraying medium circulating pump (2-1), the outlet of the spraying medium circulating pump (2-1) is connected with the inlet of a flow regulating valve (3), the outlet of the flow regulating valve (3) is connected with the inlet of a first stop valve (4-1), the outlet of the first stop valve (4-1) is connected with the inlet of a flow meter (5), the outlet of the flow meter (5) is connected with the inlets of a second stop valve (4-2), a third stop valve (4-3) and a fourth stop valve (4-4), the outlet of the second stop valve (4-2) is connected with the inlet of a first row of nozzles (1-2), and the outlet of the third stop valve (4-3) is connected with the inlet of a second row of nozzles (1-3), the outlet of a fourth stop valve (4-4) is connected with the inlet of a third row of nozzles (1-4), the outlets of a first row of nozzles (1-2), a second row of nozzles (1-3) and a third row of nozzles (1-4) are arranged above the surface (1-5) to be cooled, the interface of a first temperature sensing device (7-1) is arranged at the upper right of the surface (1-5) to be cooled, the outlet at the lower side of a spray chamber (1-6) is connected with the first port of a third phase change heat exchanger (6-2), and the second port of the third phase change heat exchanger (6-2) is connected with the inlet of a second spray medium storage tank (6-1);
the inlet of the fifteenth stop valve (4-15) is connected with the inlet of the oil tank (6-4), the outlet of the oil tank (6-4) is connected with the inlet of the oil pump (2-2), the outlet of the oil pump (2-2) is connected with the first port of the heat exchanger (6-3), the second port of the heat exchanger (6-3) is connected with the outlet of the fifteenth stop valve (4-15), the third port of the heat exchanger (6-3) is connected with the outlet of the compressor (6-5), the inlet of the compressor (6-5) is connected with the third port of the third phase heat converter (6-2), the fourth port of the heat exchanger (6-3) is connected with the inlet of the throttle valve (6-6), and the outlet of the throttle valve (6-6) is connected with the fourth port of the third phase heat converter (6-2).
2. The airborne multi-nozzle spray cooling system applying the multi-cold-source composite phase change material heat exchanger and the ejector as claimed in claim 1, is characterized in that:
the first row of nozzles (1-2), the second row of nozzles (1-3), the third row of nozzles (1-4) and the surface to be cooled (1-5) are all installed in the spray chamber (1-6) in a closed mode.
3. The airborne multi-nozzle spray cooling system applying the multi-cold-source composite phase change material heat exchanger and the ejector as claimed in claim 1, is characterized in that:
the first phase change heat exchanger (1-9), the second phase change heat exchanger (1-16) and the third phase change heat exchanger (6-2) are all made of phase change materials compounded by low-melting-point metal and paraffin.
4. The airborne multi-nozzle spray cooling system applying the multi-cold-source composite phase change material heat exchanger and the ejector as claimed in claim 1, is characterized in that:
the refrigerant is R22, R134a, or R407C.
5. The airborne multi-nozzle spray cooling system applying the multi-cold-source composite phase change material heat exchanger and the ejector as claimed in claim 1, is characterized in that:
the phase change materials in the first phase change heat exchanger (1-9), the second phase change heat exchanger (1-16) and the third phase change heat exchanger (6-2) are in a liquid state after releasing cold energy and in a solid state after storing cold.
6. The airborne multi-nozzle spray cooling system applying the multi-cold-source composite phase change material heat exchanger and the ejector as claimed in claim 1, is characterized in that:
the heat exchanger (6-3) and the condenser (1-7) are plate heat exchangers, the vortex tube refrigerating box (1-15) comprises a plurality of vortex tubes, and the number of the vortex tubes is designed according to the actual cooling capacity of the airplane.
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