CN108168893A - A kind of interior aircraft engine running experience compensated with air system - Google Patents
A kind of interior aircraft engine running experience compensated with air system Download PDFInfo
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- CN108168893A CN108168893A CN201711331731.4A CN201711331731A CN108168893A CN 108168893 A CN108168893 A CN 108168893A CN 201711331731 A CN201711331731 A CN 201711331731A CN 108168893 A CN108168893 A CN 108168893A
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- G—PHYSICS
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- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M15/00—Testing of engines
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M15/00—Testing of engines
- G01M15/02—Details or accessories of testing apparatus
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Abstract
The invention discloses a kind of indoor aircraft engine running experience compensated with air systems, belong to indoor engine test technical field.The system mainly includes air channel structure, tonifying Qi wind turbine, heat exchanger group, air intake filter, silencing apparatus composition.Wherein wind turbine is arranged in air duct, for blowing by the air inlet exhausting in air duct, and to the air outlet in air duct；Heat exchanger group includes First Heat Exchanger, the second heat exchanger, third heat exchanger and the 4th heat exchanger, wherein, First Heat Exchanger, the second heat exchanger, third heat exchanger are communicated with the storage tank of storage glacial epoch refrigerant refrigerating medium, and the 4th heat exchanger is communicated with the storage tank of storage dichloromethane refrigerating medium.The system can meet that 400kg/s mass flow airs real-time compensation, can to carry out 55 DEG C~+55 DEG C wide temperature ranges accurately adjustable；The system has the advantages that economy, safety, equipment maintenanceability, environmental suitability, and required energy consumption is relatively fewer.
Description
Technical field
The invention belongs to indoor engine test technical fields, and in particular to a kind of interior aircraft engine running experience
Compensated with air system.
Background technology
When aircraft floor running experience is carried out in climatic environment laboratory, it is indoor that engine operation will consume environment
A large amount of hot and cold airs reduce ambient chamber pressure moment, are carried beyond Architectural Structure Design.Known a single engine is maximum empty
For gas consumption up to 400kg/s, and in engine starting process, inspiratory capacity variation range is very big, if being flowed greatly not in time
Compensated with air is measured, environment room pressure can reduce moment, environmental chamber be made to form negative pressure, to the building knot of testpieces and laboratory
It is configured to damage, threatens the personal safety of testing crew.If the asynchronous supplement fresh air consistent with test temperature simultaneously
Amount, simulated environment temperature field will be destroyed due to the discharge of engine high-temperature tail gas, and experiment is made not to be normally carried out effectively.
Domestic environmental chamber at present can carry out the high/low temperatures running experience such as automobile, tank, panzer, but required amount of air entrainment is smaller, and one
As in units~tens magnitude, the refrigeration of laboratory configuration, heating system are with regard to that can meet air inflow demand.But without
For aircraft engine driving 100 or even the high/low temperature compensated with air method of hundreds of kilograms of super-flows per second.It is therefore desirable to
Engine driving mass flow air compensation method is designed to maintain the environment temperature of experiment and ambient chamber pressure balance, ensures ring
The continuous and effective of border room engine running experience carries out and the safety of laboratory building structure.
Invention content
To solve the above-mentioned problems, the present invention provides in environmental chamber, while meet big flow and air themperature is adjustable
The environmental simulation of section and air-supply arrangement.
Interior aircraft engine running experience compensated with air system of the invention, mainly includes：
Air duct, comprising the air inlet connected with outdoor air and with the indoor air outlet connected；
Wind turbine is arranged in air duct, for blowing by the air inlet exhausting in air duct, and to the air outlet in air duct；
First Heat Exchanger is arranged between the air inlet in air duct and the wind turbine, is connected with storage glacial epoch refrigerant refrigerating medium
The first storage tank；
Second heat exchanger is arranged between the air outlet in air duct and the wind turbine, is connected with storage glacial epoch refrigerant refrigerating medium
The second storage tank；
Third heat exchanger is arranged between the air outlet in air duct and second heat exchanger, is connected with storage glacial epoch refrigerant
The third storage tank of refrigerating medium；
4th heat exchanger is arranged between the air outlet in air duct and the third heat exchanger, is connected with storage dichloromethane
4th storage tank of refrigerating medium；
Wherein, between second heat exchanger and the second storage tank, between third heat exchanger and third storage tank and the 4th
Heater is respectively provided between heat exchanger and the 4th storage tank.
Preferably, the siding insulating layer in the air duct is not less than 45kg/m by density3Polyurethane sandwich thermal insulation board spell
It connects.
Preferably, the wind turbine is two, is disposed side by side in the air duct.
Preferably, the First Heat Exchanger is used for air-treatment to+6 DEG C；Second heat exchanger is used for air
Handle+6 DEG C~-10 DEG C or+6 DEG C~+20 DEG C；The third heat exchanger be used for by air-treatment to -10 DEG C~-25 DEG C or+
20 DEG C~+55 DEG C；4th heat exchanger is used for air-treatment to -25 DEG C~-55 DEG C.
Preferably, the barrel of first storage tank, the second storage tank, third storage tank and the 4th storage tank is double-layer structure,
Pearlife is filled between two layers and is evacuated.
Preferably, the compensated with air system further includes air intake filter, is arranged on the air inlet in air duct.
Preferably, the compensated with air system further includes silencing apparatus, using multigroup sheet sound absorption structure, is arranged on
The air inlet in air duct.
Preferably, the inner wall in the air duct is provided with perforated plate and sound absorption cotton.
Preferably, second heat exchanger is set as becoming pitch of fins form, and the change pitch of fins form includes changing close to first
The spacing of fin of one row of hot device is more than the spacing of fin of the row close to third heat exchanger.
The present invention has the following advantages：
400kg/s mass flow air real-time compensations can be met；
It is accurately adjustable can to carry out -55 DEG C~+55 DEG C wide temperature ranges；
To big flow bleed noise using noise reduction measure, guarantee air inlet meets national noise criteria requirement,
Temperature simulation method is simple and convenient, and energy consumption is small, less investment, and economy is good
System reliability is high；
Repair and maintenance is convenient, highly practical, of low cost.
Description of the drawings
Fig. 1 is to be according to a preferred embodiment of of the invention indoor aircraft engine running experience compensated with air system
System structure diagram.
Fig. 2 is the tank system structure diagram of embodiment illustrated in fig. 1 of the present invention.
Wherein, 1 is air duct, and 2 be wind turbine, and 3 be First Heat Exchanger, and 4 be the second heat exchanger, and 5 be third heat exchanger, and 6 be the
Four heat exchangers, 7 be silencing apparatus, and 8 be heater, and 11 be air inlet, and 12 be air outlet, and 31 be the first storage tank, and 41 be the second storage
Tank, 51 be third storage tank, and 61 be the 4th storage tank
Specific embodiment
To make the purpose, technical scheme and advantage that the present invention is implemented clearer, below in conjunction in the embodiment of the present invention
Attached drawing, the technical solution in the embodiment of the present invention is further described in more detail.In the accompanying drawings, it is identical from beginning to end or
Similar label represents same or similar element or the element with same or like function.Described embodiment is this
Invention part of the embodiment, instead of all the embodiments.The embodiments described below with reference to the accompanying drawings are exemplary,
It is intended to be used to explain the present invention, and is not considered as limiting the invention.Based on the embodiments of the present invention, this field is general
Logical technical staff all other embodiments obtained without creative efforts, belong to protection of the present invention
Range.The embodiment of the present invention is described in detail below in conjunction with the accompanying drawings.
In the description of the present invention, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", "front", "rear",
The orientation or position relationship of the instructions such as "left", "right", " vertical ", " level ", " top ", " bottom " " interior ", " outer " is based on attached drawing institutes
The orientation or position relationship shown is for only for ease of the description present invention and simplifies description rather than instruction or imply signified dress
It puts or element must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that the present invention is protected
The limitation of range.
Carry out engine high/low temperature starting test in environmental chamber, particular for the air mode of big flow wide temperature range
Plan technology is studied, the present invention provides a kind of indoor aircraft engine running experience compensated with air system, with reference to figure 1,
Mainly include air duct 1, wind turbine 2, First Heat Exchanger 3, the second heat exchanger 4, third heat exchanger 5, the 4th heat exchanger 6 and respectively change
The corresponding storage tank of hot device, the following specifically describes.
Air duct 1, it includes the air inlet 11 connected with outdoor air and with the indoor air outlet 12 connected, air duct is whole
Body is spliced by wall surface stainless steel, polyurethane sandwich thermal insulation board of the insulating layer density not less than 45kg/m3, internal cloth
Put load-bearing frame.Sandwich thermal insulation board interior lining panel and outer liner plate are 0.6mm steel plates.
Wind turbine 2 is arranged in air duct 1, for blowing by the air inlet exhausting in air duct 1, and to the air outlet in air duct 1, wind
Machine is for driving outdoor air to indoor carry out tonifying Qi.Intend the scheme using two centrifugal blower parallel connection air-supplies, meet and ensure
The air compensation of 400kg/s.Wind turbine selects big flow single admission centrifugal blower such as, and wind turbine can be transported under -20 DEG C of environment above
Row can meet the running environment demand of the system.Blower motor uses threephase asynchronous machine, and can be dragged by belt pulley.Wind
Machine can adjust the operating condition of wind turbine by way of adjusting frequency converter frequency, to meet the air-supply demand under different operating modes.
First Heat Exchanger 3, the second heat exchanger 4,5 and the 4th heat exchanger 6 of third heat exchanger collectively form heat exchanger group,
In, First Heat Exchanger 3 is arranged between the air inlet in air duct 1 and the wind turbine 2, is connected with storage glacial epoch refrigerant refrigerating medium
First storage tank 31；Second heat exchanger 4 is arranged between the air outlet in air duct 1 and the wind turbine 2, is connected with storage glacial epoch refrigerant
Second storage tank 41 of refrigerating medium；Third heat exchanger 5 is arranged between the air outlet in air duct 1 and second heat exchanger 4, connection
There is the third storage tank 51 of storage glacial epoch refrigerant refrigerating medium；4th heat exchanger 6, the air outlet and the third for being arranged on air duct 1 change
Between hot device 5, it is connected with the 4th storage tank 61 of storage dichloromethane refrigerating medium.
The effect of heat exchanger group is that the heat of refrigerating medium or cold are passed to the fresh air of system sucking, to realize to hair
The temperature of motivation tonifying Qi is adjusted.According to technical requirement, compensated with air unit is needed outdoor air processing to specified temperature
Degree, temperature range are -55 DEG C~+55 DEG C, i.e., both there is a situation where to need to heat tonifying Qi, it is also desirable to which tonifying Qi is carried out
The situation of cooling, plan are handled outdoor air using 4 grades of heat exchanger forms.Every grade of heat exchanger is by air-treatment to centainly
Temperature facilitates next stage to carry out the Temperature Treatment of air.Preceding three-level heat exchanger uses high temperature refrigerating medium (glacial epoch refrigerant refrigerating
Agent), it can both cool down to tonifying Qi, tonifying Qi can also be heated；First order heat exchanger is under the operating mode that cools down for sucking
Fresh air is pre-chilled and is dehumidified；Fourth stage heat exchanger uses low temperature refrigerating medium (dichloromethane refrigerating medium), in preceding three-level heat exchanger
On the basis of -55 DEG C of air conditioning operating mode can be achieved.It is configured so that can not only meet the needs of tonifying Qi temperature adjustment, but also can be to prevent
Only the pressure drop of single-stage heat exchanger is excessive.The requirement of large and small room heat exchangers at different levels is as shown in table 1 below.
1 large and small room heat exchanger parameter index of table
Wherein air themperature is relatively low before secondary heat exchanger (the second heat exchanger 4), and humidity is larger, easily occurs at front row big
The frosting of amount, therefore secondary heat exchanger is set as becoming pitch of fins form, the pitch of fins form that becomes is included close to First Heat Exchanger 3
The spacing of fin of one row is more than the spacing of fin of the row close to third heat exchanger 5, such as preceding two rows (are close to air inlet
Before, after be close to air outlet) spacing of fin is 24mm, intermediate two spacings of fin are 12mm, a heat exchange tube fin pitch of fins below
Spacing is 6mm.This heat exchanger for becoming a pitch of fins can greatly reduce the influence of front-seat frosting heat exchanging device self performance.
In the present embodiment, between 4 and second storage tank 41 of the second heat exchanger, third heat exchanger 5 and third storage tank 51 it
Between and the 4th heat exchanger 6 and the 4th storage tank 61 between be respectively provided with heater 8, in the case of to needing high temperature, carry out
Temperature is adjusted.
Compensated with air system further includes air intake filter described in the present embodiment, is arranged on the air inlet in air duct 1.It adopts
The supplement fresh air of engine is filtered with primary filter, with prevent the sucking of outdoor foreign matter to laboratory test object with
And the influence of testing equipment.Primary filter selects plank frame, has preferable intensity, and nylon wire can be selected in filtering material
Silk.The school filter that goes out of this form has the characteristics that light-weight, versatility is good, compact-sized.
Compensated with air system further includes silencing apparatus 7 described in the present embodiment, using multigroup sheet sound absorption structure, is arranged on
The air inlet in air duct 1.
According to practical engineering experience, diameter up to 2 meters, fan noise of the air quantity in 100kg/s (separate unit) should be in 115dB
(A)~125dB (A) range responds small acoustic device to design and carries out noise reduction to it, to meet factory's circle design requirement up to standard.
The index of big room ventilating fan noise is 120dB (A), and the limit value target of factory outside noise is 55dB (A), from wind turbine
To factory circle, always noise elimination controlled quentity controlled variable needs to reduce 65dB (A), wherein design noise reduction sound-deadening 55dB (A), propagation attenuation 10dB (A).This
System is mainly eliminated the noise by two aspects, specially：
1) air inlet is eliminated the noise
It is also to install multigroup sheet sound absorption structure additional in channel that airintake wind-tunnel, which is eliminated the noise and designed, forms a Multi-channel parallel connection
Silencer.
2) gas channel inner sound absorption
Gas channel is eliminated the noise using " sqouynd absorption lowering noise " method.Particularly between first-class heat exchanger and intake muffler
At vertical channel, due to being a rectangular space, reverberation and standing wave phenomena are also easy to produce, influences noise elimination effect, is needed in interior walls
Sound-absorbing material is laid with, the sqouynd absorption lowering noise of gas channel adds sound absorption cotton structure using perforated plate, absorbs reverberation sound.Air-flow leads to
Road inner sound absorption noise reduction is estimated should to reach 5dB or so.
Fig. 2 gives tank system structure diagram, refer to the attached drawing, mainly by refrigerating/heating system, refrigerating heat-carrying system
System, compensated with air unit composition.Workflow is：It is preceding first according to test ambient temperature demand using starting, and with reference to system
In thermal loss, steam pressure and flow that rational refrigeration system evaporating temperature or boiler provide are set, then by changing
Cold or heat exchange are stored in refrigerating medium, and by refrigerating medium in storage tank by hot device.When carrying out engine running experience again
Refrigerating medium in storage tank is supplied into compensated with air unit, in compensated with air unit air and refrigerating medium carry out it is cold and hot exchange, general
Air temperature modification supplies laboratory to required temperature is tested.Refrigerating medium after heat exchange is returned by refrigerating/heat-carrying system
Into another refrigerating medium tank, will be carried out again with refrigeration system or heating system it is cold and hot exchange, for needed for experiment, ensureing examination
The duration tested.Illustrate individually below.
1) refrigerating/heating system
Since desired cold heat compensated with air amount is very big, to reduce the operating load of refrigerating/heating system, and cause
Air themperature is supplemented convenient for adjusting and controlling, laboratory refrigerating/heating uses the form of indirect refrigeration/heating, that is, utilizes refrigerating
Agent first stores the cold of refrigerating/heating system or heat, starts to change by refrigerating medium and make-up air again during experiment
Heat realizes the indoor compensated with air of environment and temperature control.
A) refrigeration system
Laboratory refrigerant system design is folding type cooling system, and double spiral shells that four refrigerants are R507 are configured in high-temperature level
Rod-type refrigeration unit, design evaporating temperature temperature are -40 DEG C, corresponding -25 DEG C of laboratory ambient temperature, and design gross electric capacity is
4549kW.The double-screw type refrigeration unit that three refrigerants are R23 is configured in low-temperature level, and design evaporating temperature temperature is -70 DEG C,
Corresponding -55 DEG C of laboratory ambient temperature, design gross electric capacity are 4500kw, determine to make according to the cooling load of test requirements document
The booting logic of cold group.
B) heating system
Laboratory is configured with the maximum steam boiler that can provide 1620kg/h, pressure 4Bar steam.When laboratory needs heat
During compensated with air, the steam that high temperature refrigerating medium is provided with steam boiler exchanges heat, and by refrigerating medium be stored in storage tank with
For needed for experiment.
2) refrigerating heat-carrying system
The major function of refrigerating/heat-carrying system is that the low-temperature receiver that refrigerating/heating system generates is stored and conveyed, main
To include laboratory low-temperature receiver-refrigeration unit, tonifying Qi thermostat units, refrigerating medium and refrigerating medium storage tank.
Refrigerating heat-carrying system is designed as the cold regulation mode of constant flow, temperature, before pipeline heat exchanger refrigerating medium entrance
Section is provided with temp.-regulating heating device, and refrigerant temperature can be finely tuned, and when heat exchanger freezes by the heating unit
It can also realize that heat exchanging device defrosting, deicing in 20 minutes are primary by the heating unit.
A) refrigerating medium
According to the difference of test temperature, the different refrigerating medium work of refrigerating/heat-carrying Systematic selection.When Laboratory Request mould
Intend environment temperature at -25 DEG C~+74 DEG C, using high temperature refrigerating medium LM-8 (glacial epoch refrigerant refrigerating medium), test simulation environment
Temperature is at -25 DEG C~-55 DEG C, using low temperature refrigerating medium dichloromethane.Refrigerant is most in refrigerating medium LM-8 and refrigeration system
Low heat-exchange temperature is -40 DEG C, and the minimum heat-exchange temperature of dichloromethane and refrigerant is -70 DEG C, and two kinds of refrigerating mediums are in minimum work
At a temperature of to work be not in freeze, and the physical parameters such as viscosity, thermal conductivity factor are satisfied by requirement.Refrigerating medium is with changing
Hot device correspondence is shown in Table 2.
2 refrigerating medium of table and heat exchanger correspondence
B) tonifying Qi thermostat units
The function of tonifying Qi thermostat units is that the conveying of refrigerating medium is controlled.The system includes more set pump groups, temperature tune
The regulating valve of section and from tank field to the pipe valve of heat exchanger etc..Horizontal-type end suction centrifugal pump is wherein selected, can preferably be used
In the working environment of tonifying Qi thermoregulating system.Storage tank filling liquid pump group and operation feed flow pump group can be divided into according to function.
Storage tank filling liquid pump group is used to the refrigerating medium after in secondary refrigerant system freezing or heating being transported to the storage tank of tank field
It is interior, according to experiment demand, medium temperature charging pump group configuration two end suction centrifugal pump of the using and the reserved, low temperature charging pump group configuration one
With one for two end suction centrifugal pumps, it is shown in Table 3.
Parameter is configured in 3 storage tank charging pump of table
| Flow | Lift | Power | Quantity | Remarks | |
| Medium temperature refrigerating medium charging pump | 220m3/h | 35m | 45kW | 2 | The using and the reserved |
| Low temperature refrigerating medium charging pump | 220m3/h | 35m | 45kW | 2 | The using and the reserved |
Feed flow pump group is run for carrying out feed flow from tank field to the heat exchanger of air compensating system in the operation of tonifying Qi thermoregulating system,
Maintain the operation of air compensating system.According to the use demand of heat exchanger, the big room of operation feed flow pump group and cell respectively have a set of, often cover
Pump group contains 4 groups of pumps, and every group of pump corresponds to big flow height warm air in environmental chamber and mend respectively containing dual-purpose one standby totally 3 pumps, 4 groups of pumps
4 grades of heat exchangers when compensation method is run, are shown in Table 4.
Table 4 runs solution feed pump configuration parameter
| Big room operation solution feed pump | Flow | Lift | Power | Quantity | Remarks |
| Medium temperature first-class heat exchanger circulating pump | 600m3/h | 35m | 132kW | 3 | Dual-purpose one is standby |
| Medium temperature secondary heat exchanger circulating pump | 600m3/h | 30m | 132kW | 3 | Dual-purpose one is standby |
| Medium temperature three-level heat exchanger circulating pump | 600m3/h | 30m | 132kW | 3 | Dual-purpose one is standby |
| Cryogenic heat exchanger circulating pump | 600m3/h | 30m | 120kW | 3 | Dual-purpose one is standby |
C) refrigerating medium storage tank
One group of medium temperature refrigerating medium storage tank is provided with for tonifying Qi temperature adjustment and one group of low temperature refrigerating medium storage tank is used for the storage of refrigerating medium
It deposits.The characteristics of in view of refrigerating medium itself, low temperature refrigerating medium storage tank internal layer material are 316L stainless steels, and outer layer material is
Q345R, central filler pearlife are simultaneously evacuated.Medium temperature refrigerating medium storage tank internal layer material is 304 stainless steels, and outer layer material is
Q345R, central filler pearlife are simultaneously evacuated.
In the engine running experience preparation stage, respective valves and charging pump are opened, cold soaking test temperature is higher than -25 DEG C
When, the cold of refrigeration unit high-temperature level refrigeration agent R507 is passed into LM-8 and is stored；When temperature is less than -25 DEG C, by low temperature
The cold of grade refrigerant R23 passes to dichloromethane, and cold is stored using LM-8 and dichloromethane.When detect refrigerating medium store up
Tank tank field temperature reaches required value, and engine running experience preparation it is ready after, close respective valves, close filling liquid
Pump opens the refrigerating medium circulating pump of compensated with air unit, provides power by 4 groups of pumps, refrigerating medium is transported to compensated with air respectively
Among 4 grades of heat exchanger groups of unit.The circular flow of every heat exchanger is kept constant, and liquid is returned by adjusting previous stage heat exchanger
With the ratio of main line feed flow, can adjust into the refrigerant temperature for working as grade heat exchanger, so as to refrigerant temperature and heat exchange
The leaving air temp of device is accurately controlled.
Experimental stage opens air supply passage, and as wind turbine driving from the air of flow needed for outdoor introducing, air passed through
Filter and noise elimination, into heat exchanger group.Laboratory when doing -25 DEG C or more of engine running experience, compensated with air unit first three
Grade heat exchanger and make-up air carry out it is cold and hot exchange, handle make-up air to test requirements document temperature；When experimental enviroment is at -25 DEG C
When between~-55 DEG C, level Four heat exchanger step by step with need the air that compensates carry out it is cold and hot exchange, by make-up air Temperature Treatment
To after test requirements document temperature, the air handled to assigned temperature is sent by circulation air path and supply terminal device by top
In environmental chamber, the air needed for engine running experience is supplemented.
The present invention provides one kind in environmental chamber, while meet big flow and the adjustable environmental simulation of air themperature
And supply air system, the system have the advantages that economy, safety, equipment maintenanceability, environmental suitability, and required energy
It consumes relatively fewer.
It is last it is to be noted that：The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations.
Although the present invention is described in detail referring to the foregoing embodiments, it will be understood by those of ordinary skill in the art that：Its according to
So it can modify to the technical solution recorded in foregoing embodiments or which part technical characteristic is equal
It replaces；And these modifications or replacement, various embodiments of the present invention technical solution that it does not separate the essence of the corresponding technical solution
Spirit and scope.
Claims (9)
1. a kind of interior aircraft engine running experience compensated with air system, which is characterized in that including：
Air duct (1), comprising the air inlet connected with outdoor air and with the indoor air outlet connected；
Wind turbine (2) is arranged in air duct (1), is sent for the air outlet by the air inlet exhausting of air duct (1), and to air duct (1)
Wind；
First Heat Exchanger (3) is arranged between the air inlet in air duct (1) and the wind turbine (2), is connected with storage glacial epoch refrigerant and is carried
The first storage tank (31) of cryogen；
Second heat exchanger (4) is arranged between the air outlet in air duct (1) and the wind turbine (2), is connected with storage glacial epoch refrigerant and is carried
The second storage tank (41) of cryogen；
Third heat exchanger (5) is arranged between the air outlet in air duct (1) and second heat exchanger (4), is connected with storage glacial epoch
The third storage tank (51) of refrigerant refrigerating medium；
4th heat exchanger (6) is arranged between the air outlet in air duct (1) and the third heat exchanger (5), is connected with storage dichloro
4th storage tank (61) of methane refrigerating medium；
Wherein, between second heat exchanger (4) and the second storage tank (41), between third heat exchanger (5) and third storage tank (51),
And the 4th be respectively provided with heater between heat exchanger (6) and the 4th storage tank (61).
2. interior aircraft engine running experience compensated with air system as described in claim 1, which is characterized in that the air duct
Siding insulating layer by density be not less than 45kg/m3Polyurethane sandwich thermal insulation board be spliced.
3. interior aircraft engine running experience compensated with air system as described in claim 1, which is characterized in that the wind turbine
It is two, is disposed side by side in the air duct.
4. interior aircraft engine running experience compensated with air system as described in claim 1, which is characterized in that described first
Heat exchanger (3) for by air-treatment to+6 DEG C；Second heat exchanger (4) for by air-treatment to+6 DEG C~-10 DEG C or+
6 DEG C~+20 DEG C；The third heat exchanger (5) for by air-treatment to -10 DEG C~-25 DEG C or+20 DEG C~+55 DEG C；Described
Four heat exchangers (6) for by air-treatment to -25 DEG C~-55 DEG C.
5. interior aircraft engine running experience compensated with air system as described in claim 1, which is characterized in that described first
Storage tank (31), the second storage tank (41), third storage tank (51) and the 4th storage tank (61) barrel be double-layer structure, filled out between two layers
Filled with pearlife and it is evacuated.
6. interior aircraft engine running experience compensated with air system as described in claim 1, which is characterized in that the air
Compensation system further includes air intake filter, is arranged on the air inlet of air duct (1).
7. interior aircraft engine running experience compensated with air system as described in claim 1, which is characterized in that the air
Compensation system further includes silencing apparatus (7), using multigroup sheet sound absorption structure, is arranged on the air inlet of air duct (1).
8. interior aircraft engine running experience compensated with air system as described in claim 1, which is characterized in that the air duct
(1) inner wall is provided with perforated plate and sound absorption cotton.
9. interior aircraft engine running experience compensated with air system as described in claim 1, which is characterized in that described second
Heat exchanger (4) is set as becoming pitch of fins form, the spacing of fin for becoming the row that pitch of fins form is included close to First Heat Exchanger (3)
More than the spacing of fin of the row close to third heat exchanger (5).
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| CN113901590A (en) * | 2021-11-17 | 2022-01-07 | 中国飞机强度研究所 | Large aircraft climate environment laboratory temperature rise and fall transient load analysis method |
| CN113928594A (en) * | 2021-12-17 | 2022-01-14 | 中国飞机强度研究所 | Aircraft test full fresh air temperature control system and control method |
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| CN114234481A (en) * | 2022-01-11 | 2022-03-25 | 中国飞机强度研究所 | Secondary refrigerant temperature regulating system and method for airplane test |
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| CN115219215A (en) * | 2022-08-31 | 2022-10-21 | 中国航发四川燃气涡轮研究院 | Engine cold-dipping method for low-temperature starting test of turbofan engine |
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| CN109060392B (en) * | 2018-07-24 | 2023-08-11 | 天津航天瑞莱科技有限公司 | Temperature-controllable pneumatic load test system |
| CN113901590A (en) * | 2021-11-17 | 2022-01-07 | 中国飞机强度研究所 | Large aircraft climate environment laboratory temperature rise and fall transient load analysis method |
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| CN113899555A (en) * | 2021-12-10 | 2022-01-07 | 中国飞机强度研究所 | Balance control system for slow-vehicle running environment field of laboratory aircraft engine |
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| CN113899555B (en) * | 2021-12-10 | 2022-04-08 | 中国飞机强度研究所 | Balance control system for slow-vehicle running environment field of laboratory aircraft engine |
| CN113899554B (en) * | 2021-12-10 | 2022-02-18 | 中国飞机强度研究所 | Balance control method for slow-vehicle running environment field of laboratory aircraft engine |
| CN113899519A (en) * | 2021-12-13 | 2022-01-07 | 中国飞机强度研究所 | Indoor airplane test micro-pressure control system and control method |
| CN113899519B (en) * | 2021-12-13 | 2022-03-15 | 中国飞机强度研究所 | Indoor airplane test micro-pressure control system and control method |
| CN113928595B (en) * | 2021-12-17 | 2022-03-08 | 中国飞机强度研究所 | Method for tailoring low-temperature test conditions of complete aircraft in laboratory |
| CN113928594B (en) * | 2021-12-17 | 2022-03-01 | 中国飞机强度研究所 | Aircraft test full fresh air temperature control system and control method |
| CN113928595A (en) * | 2021-12-17 | 2022-01-14 | 中国飞机强度研究所 | Method for tailoring low-temperature test conditions of complete aircraft in laboratory |
| CN113928594A (en) * | 2021-12-17 | 2022-01-14 | 中国飞机强度研究所 | Aircraft test full fresh air temperature control system and control method |
| CN114234481A (en) * | 2022-01-11 | 2022-03-25 | 中国飞机强度研究所 | Secondary refrigerant temperature regulating system and method for airplane test |
| CN114234481B (en) * | 2022-01-11 | 2022-09-13 | 中国飞机强度研究所 | Secondary refrigerant temperature regulating system and method for airplane test |
| CN114486265A (en) * | 2022-04-01 | 2022-05-13 | 中国飞机强度研究所 | Cold carrying system for aircraft extreme temperature test and parameter design method thereof |
| CN114486265B (en) * | 2022-04-01 | 2022-06-24 | 中国飞机强度研究所 | Cold carrying system for aircraft extreme temperature test and parameter design method thereof |
| CN114486269A (en) * | 2022-04-15 | 2022-05-13 | 中国飞机强度研究所 | Engine driving temperature control system for aircraft testing laboratory and design method thereof |
| CN114486269B (en) * | 2022-04-15 | 2022-06-24 | 中国飞机强度研究所 | Engine driving temperature control system for aircraft testing laboratory and design method thereof |
| CN115219215A (en) * | 2022-08-31 | 2022-10-21 | 中国航发四川燃气涡轮研究院 | Engine cold-dipping method for low-temperature starting test of turbofan engine |
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