CN110217412A - A kind of device for freezing experiment and method - Google Patents
A kind of device for freezing experiment and method Download PDFInfo
- Publication number
- CN110217412A CN110217412A CN201910587229.2A CN201910587229A CN110217412A CN 110217412 A CN110217412 A CN 110217412A CN 201910587229 A CN201910587229 A CN 201910587229A CN 110217412 A CN110217412 A CN 110217412A
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- China
- Prior art keywords
- temperature
- transparent glass
- wave transparent
- evaporator
- partition
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- 238000002474 experimental method Methods 0.000 title claims abstract description 21
- 238000007710 freezing Methods 0.000 title claims abstract description 18
- 230000008014 freezing Effects 0.000 title claims abstract description 18
- 238000000034 method Methods 0.000 title claims abstract description 9
- 239000011521 glass Substances 0.000 claims abstract description 37
- 238000005192 partition Methods 0.000 claims abstract description 23
- 230000005855 radiation Effects 0.000 claims abstract description 17
- 238000012546 transfer Methods 0.000 claims abstract description 17
- 238000004088 simulation Methods 0.000 claims abstract description 15
- 238000005507 spraying Methods 0.000 claims abstract description 11
- 238000012360 testing method Methods 0.000 claims description 31
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 26
- 239000007788 liquid Substances 0.000 claims description 13
- 229910052757 nitrogen Inorganic materials 0.000 claims description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- 238000005057 refrigeration Methods 0.000 claims description 5
- 238000001704 evaporation Methods 0.000 claims description 3
- 230000008020 evaporation Effects 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims 1
- 238000001816 cooling Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000004069 differentiation Effects 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000005437 stratosphere Substances 0.000 description 1
- 239000003643 water by type Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64G—COSMONAUTICS; VEHICLES OR EQUIPMENT THEREFOR
- B64G7/00—Simulating cosmonautic conditions, e.g. for conditioning crews
Landscapes
- Engineering & Computer Science (AREA)
- Remote Sensing (AREA)
- Aviation & Aerospace Engineering (AREA)
- Investigating Or Analyzing Materials Using Thermal Means (AREA)
- Testing Resistance To Weather, Investigating Materials By Mechanical Methods (AREA)
Abstract
This application discloses a kind of device for freezing experiment and methods, comprising: experimental enviroment partition, heat convection system, radiation heat transfer system, simulation cloud layer device and control system.The experimental enviroment partition surrounds a hexahedral confined space using wave transparent glass, and the wave transparent glass has aperture, and heater strip is arranged in wave transparent glass surface；The heat convection system includes evaporator, breeze fan, air blow and return air port and air door, and air door is arranged on the wave transparent glass of aperture, and the radiation heat transfer system is configured in the six direction of the wave transparent glass；The simulation cloud layer device includes: drench with rain device, spraying device and hair dryer；The control system includes: system controller and various sensors；Package unit is mounted in laboratory, and the inner surface of laboratory partition wall is covered with reflecting layer.The invention has the advantages that realizing simply, under the coordination of control system, the experiment that continuously freezes may be implemented, and can be realized sample temperature is environment minimum temperature.
Description
Technical field
The present invention relates to a kind of device for freezing experiment and methods.
Background technique
The height above sea level of cloud layer in present earth atmosphere is about 2000 to ten thousand metres.Including fighter plane, civil aviaton visitor
The operating altitudes such as machine, missile warning dirigible height is close to or higher than the aircraft of ten thousand metres, all may be used in flight, descent
The stage for passing through cloud layer can be encountered.When stratosphere of the aircraft in atmosphere, the surface of aircraft and some parts
Temperature move closer to environment temperature, temperature is lower.There are a large amount of steam/waters to drip in cloud layer, aircraft is passed through in reduction height above sea level
When cloud layer, fuselage especially aerofoil surface is likely to occur icing, this will lead to aircraft can not normal flight and there may be weight
Major break down.For this case, aircraft needs to carry out special design and is verified.
Carrying out temperature controlled problem only with heat convection system is: the temperature in order to maintain test space needs to steam
Device is sent out as cold source, cooling and constant temperature are carried out to space by the way of heat convection, so that the temperature of test space is reduced, into
And reduce the temperature of sample.It will be apparent that the minimum temperature point of entire environment is evaporator always, rather than sample.That is
Evaporator temperature is lower than the temperature of air in experimental cabin, and temperature, that is, sample ambient enviroment temperature of air is lower than the temperature of sample
Degree.Also could only in this way cool down to sample 1.The target of icing tests is to freeze then to check sample in sample surfaces
Performance.But since evaporator is minimum temperature point, so a large amount of vapor can be in evaporator surface during icing tests
It freezes, part water droplet and vapor freeze in tank wall, rather than freeze on sample.After especially evaporator surface freezes, nothing
Method sustainedly and stably controls environment temperature.For aircraft in real work when passing through cloud layer, aircraft surface temperature is lower than ring
Border temperature.So it is inadequate for carrying out temperature control only with the mode of heat convection.
Summary of the invention
The purpose of the present invention is to overcome the above shortcomings and to provide a kind of device for freezing experiment, and all tests is avoided all to adopt
With actual test flight.
To achieve the goals above, a kind of the technical solution adopted by the present invention are as follows: device for freezing experiment, which is characterized in that
It include: experimental enviroment partition, heat convection system, radiation heat transfer system, simulation cloud layer device and control system.
The experimental enviroment partition surrounds a hexahedral confined space using wave transparent glass, and the wave transparent glass has
Heater strip is arranged in wave transparent glass surface in aperture；
The heat convection system includes that aperture is arranged in evaporator, breeze fan, air blow and return air port and air door, air door
On wave transparent glass, liquid nitrogen is passed through in the evaporator, liquid nitrogen gasifies in evaporator, and the temperature of evaporator reduces, and passes through evaporation
Device and breeze fan, cool down test space by the way of heat convection；
The radiation heat transfer system is configured in the six direction of the wave transparent glass；
The simulation cloud layer device includes: drench with rain device, spraying device and hair dryer；
The control system includes: system controller and various sensors；
Package unit is mounted in laboratory, and the inner surface of laboratory partition wall is covered with reflecting layer.
The invention has the benefit that
Structure is simple, comprising: experimental enviroment partition, heat convection system, radiation heat transfer system, simulation cloud layer device and
Control system.The experimental enviroment partition surrounds a hexahedral confined space, the wave transparent glass tool using wave transparent glass
There is aperture, heater strip is set in wave transparent glass surface；The heat convection system includes evaporator, breeze fan, air blow and return wind
Mouth and air door, air door are arranged on the wave transparent glass of aperture, and liquid nitrogen is passed through in the evaporator, and liquid nitrogen gasifies in evaporator,
The temperature of evaporator reduces, and by evaporator and breeze fan, is cooled down by the way of heat convection to test space；Institute
The six direction that radiation heat transfer system is stated in the wave transparent glass is configured；The simulation cloud layer device include: drench with rain device,
Spraying device and hair dryer；The control system includes: system controller and various sensors；Package unit is mounted on experiment
The inner surface of interior, laboratory partition wall is covered with reflecting layer.Under the coordination of control system, the experiment that continuously freezes may be implemented,
And can be realized sample temperature is environment minimum temperature.
Detailed description of the invention
The drawings described herein are used to provide a further understanding of the present application, constitutes part of this application, this Shen
Illustrative embodiments and their description please are not constituted an undue limitation on the present application for explaining the application.In the accompanying drawings:
Fig. 1 is the example structure schematic diagram of device for freezing experiment of the invention.
Appended drawing reference signal
1 --- --- wave transparent glass 3 --- evaporator 4 --- refrigeration system of test specimen 2
5 --- heater 6 --- breeze fans
7 --- air outlet is equipped with air door 8 --- return air inlet, is equipped with air door
9 --- device 10 of drenching with rain --- spraying device 11a --- room temperature sensors
11b --- sample temperature sensor 11c --- outer space simulator surface temperature sensor
11d --- wave transparent glass surface temperature sensor 12 --- humidity sensor
13 --- baroceptor 14 --- laboratory partition wall 15 --- internally reflective layer
16 --- outer space simulator 17 --- hair dryers
22 --- wave transparent glass heater strip 23 --- system controllers
Specific embodiment
If used some vocabulary in the specification and claims to censure specific components, those skilled in the art are answered
It is understood that hardware manufacturer may call the same component with different nouns.This specification and claims are not with name
The difference of title is as the mode for distinguishing component, but with the difference of component functionally as the criterion of differentiation.Such as logical
The "comprising" of piece specification and claim mentioned in is an open language, therefore should be construed to " include but do not limit
In "." substantially " refer within the acceptable error range, those skilled in the art can within a certain error range solve described in
Technical problem basically reaches the technical effect.Specification subsequent descriptions are to implement the better embodiment of the application, so described
Description is being not intended to limit the scope of the present application for the purpose of the rule for illustrating the application.The protection scope of the application
As defined by the appended claims.
Device for freezing experiment of the invention, comprising:
The experimental enviroment partition is hexahedron, and using wave transparent glass, wave transparent glass surface is arranged heater strip, avoids wave transparent
Glass surface hazes, condensing even freezes.
Heat convection system includes evaporator, heater, breeze fan, air blow and return air port and air door, and air door setting is being opened
On the wave transparent glass in hole.
Radiation heat transfer system includes outer space simulator, can be separated around experimental enviroment to be arranged.
Simulation cloud layer device includes drench with rain device, spraying device and hair dryer.
Control system includes system controller and various sensors, such as temperature sensor, humidity sensor, air pressure sensing
Device etc..
Package unit is mounted in laboratory, and the inner surface of laboratory partition wall is covered with reflecting layer.
In the present invention, include conventional heat convection system.Wherein cold source is evaporator 3, is passed through liquid nitrogen, liquid in evaporator
Nitrogen gasifies in evaporator, and the temperature of evaporator reduces.Through evaporator 3 and breeze fan 6, by the way of heat convection pair
Test space is cooled down.Heater 2 can play the role of aids in temperature control.After 1 temperature of sample reaches setting value, to examination
It tests space and sprays into water, water vapour, freeze on 1 surface of sample.
A kind of icing tests method characterized by comprising
A. the stage is pre-chilled:
Open the air door of air outlet 7 and the air door of return air inlet 8.
Start breeze fan 6, while refrigeration system 4, heater 5 be under the control of system controller 23, to test space
Cooling and constant temperature, along with the reduction of test space temperature, the temperature of sample 1 reaches test temperature, and the temperature of sample 1 is by sample
Temperature sensor 11b is measured.
B. experimental stage
After the temperature of sample 1 reaches test required temperature, breeze fan 6 is closed, be then shut off the air door of air outlet 7 and is returned
The air door in air port 8,
Start outer space simulator 16, is cooled down by the way of radiation heat transfer to sample 1, so that sample 1
Temperature is consistently lower than the temperature of its ambient enviroment；
Start drench with rain device 9 and/or spraying device 10, the water of suitable temperature, vapor are sprayed into test space, tested
The environment of simulation cloud layer is generated in space；
Device for freezing experiment, comprising: experimental enviroment partition, heat convection system, radiation heat transfer system, simulation cloud layer device
And control system,
The experimental enviroment partition surrounds a hexahedral confined space using wave transparent glass, and the wave transparent glass has
Heater strip is arranged in wave transparent glass surface in aperture；
The heat convection system includes that aperture is arranged in evaporator, breeze fan, air blow and return air port and air door, air door
On wave transparent glass, liquid nitrogen is passed through in the evaporator, liquid nitrogen gasifies in evaporator, and the temperature of evaporator reduces, and passes through evaporation
Device and breeze fan, cool down test space by the way of heat convection；
The radiation heat transfer system is configured in the six direction of the wave transparent glass；
The simulation cloud layer device includes: drench with rain device, spraying device and hair dryer；
The control system includes: system controller and various sensors；
Package unit is mounted in laboratory, and the inner surface of laboratory partition wall is covered with reflecting layer.
Please refer to Fig. 1, working method of the invention are as follows:
A. the stage is pre-chilled:
Open the air door of air outlet 7 and the air door of return air inlet 8.
Start breeze fan 6, while refrigeration system 4, heater 5 be under the control of system controller 23, to test space
Cooling and constant temperature.Along with the reduction of test space temperature, the temperature of sample 1 reaches test temperature.The temperature of sample 1 is by sample
Temperature sensor 11b is measured.
Claims (9)
1. a kind of device for freezing experiment characterized by comprising experimental enviroment partition, heat convection system, radiation heat transfer system
System, simulation cloud layer device and control system,
The experimental enviroment partition surrounds a hexahedral confined space using wave transparent glass, and the wave transparent glass, which has, to be opened
Heater strip is arranged in wave transparent glass surface in hole；
The heat convection system includes evaporator, breeze fan, air outlet, return air inlet and air door, and aperture is arranged in air door
On wave transparent glass, liquid nitrogen is passed through in the evaporator, liquid nitrogen gasifies in evaporator, and the temperature of evaporator reduces, and passes through evaporation
Device and breeze fan, cool down test space by the way of heat convection；
The radiation heat transfer system is configured in the six direction of the wave transparent glass；
The simulation cloud layer device includes: drench with rain device, spraying device and hair dryer；
The control system includes: system controller and various sensors；
Package unit is mounted in laboratory, and the inner surface of laboratory partition wall is covered with reflecting layer.
2. device for freezing experiment according to claim 1, which is characterized in that in the experimental enviroment partition setting for taking,
The door or window of setting-out product.
3. device for freezing experiment according to claim 1, which is characterized in that the outer space simulator is around experimental enviroment
Partition is to be arranged.
4. device for freezing experiment according to claim 1, which is characterized in that the various sensors include: temperature sensing
Device, humidity sensor, baroceptor etc..
5. device for freezing experiment according to claim 1, which is characterized in that the heat convection system further includes heating
Device.
6. device for freezing experiment according to claim 5, which is characterized in that the radiation heat transfer system is filled using liquid nitrogen
It sets.
7. device for freezing experiment according to claim 5, which is characterized in that the radiation heat transfer system uses mechanical refrigeration
System.
8. device for freezing experiment according to claim 1, which is characterized in that it further include drench with rain device and/or spraying device,
The water of suitable temperature, vapor are sprayed into test space.
9. a kind of icing tests method characterized by comprising
A. the stage is pre-chilled:
Open the air door of air outlet 7 and the air door of return air inlet 8.
Start breeze fan 6, while refrigeration system 4, heater 5 cool down to test space under the control of system controller 23
And constant temperature, along with the reduction of test space temperature, the temperature of sample 1 reaches test temperature, and the temperature of sample 1 is by sample temperature
Sensor 11b is measured.
B. experimental stage
After the temperature of sample 1 reaches test required temperature, breeze fan 6 is closed, the air door and return air inlet of air outlet 7 are then shut off
8 air door,
Start outer space simulator 16, is cooled down by the way of radiation heat transfer to sample 1, so that the temperature of sample 1
The consistently lower than temperature of its ambient enviroment；
Start drench with rain device 9 and/or spraying device 10, the water of suitable temperature, vapor is sprayed into test space, in test space
The interior environment for generating simulation cloud layer；
Device for freezing experiment, comprising: experimental enviroment partition, heat convection system, radiation heat transfer system, simulation cloud layer device and
Control system,
The experimental enviroment partition surrounds a hexahedral confined space using wave transparent glass, and the wave transparent glass, which has, to be opened
Heater strip is arranged in wave transparent glass surface in hole；
The heat convection system includes evaporator, breeze fan, air blow and return air port and air door, and the wave transparent of aperture is arranged in air door
On glass, liquid nitrogen is passed through in the evaporator, liquid nitrogen gasifies in evaporator, and the temperature of evaporator reduces, by evaporator and
Breeze fan cools down test space by the way of heat convection；
The radiation heat transfer system is configured in the six direction of the wave transparent glass；
The simulation cloud layer device includes: drench with rain device, spraying device and hair dryer；
The control system includes: system controller and various sensors；
Package unit is mounted in laboratory, and the inner surface of laboratory partition wall is covered with reflecting layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910587229.2A CN110217412B (en) | 2019-07-04 | 2019-07-04 | Icing test device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910587229.2A CN110217412B (en) | 2019-07-04 | 2019-07-04 | Icing test device and method |
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| Publication Number | Publication Date |
|---|---|
| CN110217412A true CN110217412A (en) | 2019-09-10 |
| CN110217412B CN110217412B (en) | 2024-06-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910587229.2A Active CN110217412B (en) | 2019-07-04 | 2019-07-04 | Icing test device and method |
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| Country | Link |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110816884A (en) * | 2019-11-07 | 2020-02-21 | 中国科学院光电研究院 | Test method for icing characteristic of aerostat |
| CN110816885A (en) * | 2019-11-07 | 2020-02-21 | 中国科学院光电研究院 | Numerical simulation and test verification system for icing characteristic of aerostat |
| CN111003199A (en) * | 2019-11-07 | 2020-04-14 | 中国科学院光电研究院 | Aerostat icing characteristic test system |
| CN112249361A (en) * | 2020-09-22 | 2021-01-22 | 北京卫星环境工程研究所 | Cooling and ventilation simulation device for testing high-altitude airborne equipment and control method |
| CN116878812A (en) * | 2023-09-08 | 2023-10-13 | 中国空气动力研究与发展中心计算空气动力研究所 | Round tube frosting experimental model and experimental method for observing frosting from axial direction |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109490352A (en) * | 2018-12-28 | 2019-03-19 | 中山大学 | Multifactor low temperature sleet freezing environment simulated testing system |
| CN210391597U (en) * | 2019-07-04 | 2020-04-24 | 北京瑞尔腾普科技有限公司 | Icing test device |
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2019
- 2019-07-04 CN CN201910587229.2A patent/CN110217412B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109490352A (en) * | 2018-12-28 | 2019-03-19 | 中山大学 | Multifactor low temperature sleet freezing environment simulated testing system |
| CN210391597U (en) * | 2019-07-04 | 2020-04-24 | 北京瑞尔腾普科技有限公司 | Icing test device |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110816884A (en) * | 2019-11-07 | 2020-02-21 | 中国科学院光电研究院 | Test method for icing characteristic of aerostat |
| CN110816885A (en) * | 2019-11-07 | 2020-02-21 | 中国科学院光电研究院 | Numerical simulation and test verification system for icing characteristic of aerostat |
| CN111003199A (en) * | 2019-11-07 | 2020-04-14 | 中国科学院光电研究院 | Aerostat icing characteristic test system |
| WO2021088097A1 (en) * | 2019-11-07 | 2021-05-14 | 中国科学院空天信息创新研究院 | Aerostat icing characteristic numerical simulation and experimental verification system |
| US11161629B2 (en) | 2019-11-07 | 2021-11-02 | Aerospace Information Research Institute, Chinese Academy Of Sciences | System for numerical simulation and test verification of icing characteristics of an aerostat |
| CN112249361A (en) * | 2020-09-22 | 2021-01-22 | 北京卫星环境工程研究所 | Cooling and ventilation simulation device for testing high-altitude airborne equipment and control method |
| CN112249361B (en) * | 2020-09-22 | 2022-08-02 | 北京卫星环境工程研究所 | Cooling and ventilation simulation device for testing high-altitude airborne equipment and control method |
| CN116878812A (en) * | 2023-09-08 | 2023-10-13 | 中国空气动力研究与发展中心计算空气动力研究所 | Round tube frosting experimental model and experimental method for observing frosting from axial direction |
| CN116878812B (en) * | 2023-09-08 | 2023-11-17 | 中国空气动力研究与发展中心计算空气动力研究所 | Round tube frosting experimental model and experimental method for observing frosting from axial direction |
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| CN110217412B (en) | 2024-06-14 |
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