CN109184520A - Sealing system for environmental chamber gate - Google Patents

Sealing system for environmental chamber gate Download PDF

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Publication number
CN109184520A
CN109184520A CN201811126431.7A CN201811126431A CN109184520A CN 109184520 A CN109184520 A CN 109184520A CN 201811126431 A CN201811126431 A CN 201811126431A CN 109184520 A CN109184520 A CN 109184520A
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CN
China
Prior art keywords
gate
sealing element
edge
sealing
environmental chamber
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN201811126431.7A
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Chinese (zh)
Other versions
CN109184520B (en
Inventor
任战鹏
吴敬涛
吴学敏
成竹
周青松
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AVIC Aircraft Strength Research Institute
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AVIC Aircraft Strength Research Institute
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by AVIC Aircraft Strength Research Institute filed Critical AVIC Aircraft Strength Research Institute
Priority to CN201811126431.7A priority Critical patent/CN109184520B/en
Publication of CN109184520A publication Critical patent/CN109184520A/en
Application granted granted Critical
Publication of CN109184520B publication Critical patent/CN109184520B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • EFIXED CONSTRUCTIONS
    • E06DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06BFIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B7/00Special arrangements or measures in connection with doors or windows
    • E06B7/16Sealing arrangements on wings or parts co-operating with the wings
    • E06B7/22Sealing arrangements on wings or parts co-operating with the wings by means of elastic edgings, e.g. elastic rubber tubes; by means of resilient edgings, e.g. felt or plush strips, resilient metal strips

Abstract

The application belongs to environmental test field, in particular to a kind of sealing system for environmental chamber gate;Sealing system includes: sealing element, and the edge along the side length direction at gate is laid with, and sealing element has nature and inflated condition;In nature, there is preset distance between sealing element and the edge of respective side;In inflated condition, sealing element is bonded the surface of wall or ground or the edge of adjacent another fan gate respective side of respective side;Controller is inflated or deflates for controlling sealing element;Gas source, for being inflated by controller for sealing element.The sealing system for environmental chamber gate of the application, pass through the sealing between type inflatable sealing element realization ultra-large type Men Yumen, door and ground and building body, indoor environment is effectively ensured not to be influenced by the external world, and, sealing element is when without inflation, there are certain safe distances between seal interface, do not influence gate regular event.

Description

Sealing system for environmental chamber gate
Technical field
The application belongs to environmental test field, in particular to a kind of sealing system for ultra-large type environmental chamber gate.
Background technique
Environmental test chamber is mainly used for carrying out the simulation of the extreme environments such as high/low temperature, high humidity, during the test, in environmental chamber Portion is in slight positive pressure state, and gate is directly subjected to the test of extreme environment.The size at environmental chamber gate can be tried according to environment It tests depending on demand, in some ultra-large type environmental test chambers, environmental chamber gate can divide four fans, and gate overall width is up to 72m, every fan Gate height is up to 24m.
Environmental chamber gate is as the maximum leakage position of environmental chamber, if gate encapsulation process is bad, air is from sealing Position entrance/leakage environmental chamber, influences the realization of environmental chamber inner-environment index, while increasing the energy consumption of environmental chamber, when serious, door Body and environment cell structure will appear a large amount of icings, threaten to the safety belt of environmental chamber.
But there is presently no the effective seal form for the ultra-large type door for being resistant to extreme environment, small gate is traditional to be squeezed Means of press seals form is not suitable for ultra-large type door, is easy to appear leakage problem, to be unable to satisfy test requirements document.
Thus, it is desirable to have a kind of technical solution overcomes or at least mitigates at least one drawbacks described above of the prior art.
Summary of the invention
There is provided a kind of sealing systems for environmental chamber gate for the purpose of the application, at least to solve existing environmental chamber The sealing problem at gate in extreme circumstances.
The technical solution of the application is:
A kind of sealing system for environmental chamber gate, comprising:
In the sealing element of flexible tubular, the sealing element is laid with along the edge in the side length direction at gate, the sealing element tool There are nature and inflated condition;Wherein
In the nature, the sealing element backwards to the gate edge side to respective side surface of wall or There is preset distance between ground or the edge of adjacent another fan gate respective side;
In the inflated condition, respective side described in side palette of the sealing element backwards to the gate edge Surface of wall or ground or the edge of adjacent another fan gate respective side;
The sealing system for environmental chamber gate further include:
Controller, the connection with the sealing element are inflated or are controlled in inflation shape for controlling the sealing element The sealing element of state is deflated;
Gas source, for being that the sealing element is inflated by the controller.
Optionally, the sealing system for environmental chamber gate further include:
Electric-heating belt is laid on the wall table opposite with the side at the gate edge along the side length direction at the gate The edge at face or ground or adjacent another fan gate, and paving location is adapted with the position of the sealing element, for controlled The sealing position of the sealing element is heated on ground.
Optionally, the quantity for the sealing element being laid with along each edge in the side length direction at the gate is two, and It is parallel to each other.
Optionally, the quantity for the electric-heating belt being laid with along the side length direction at the gate and the institute of position and opposite side The quantity and position for stating sealing element are adapted.
Optionally, between the gate edge and the edge of adjacent another fan gate respective side, there are four The sealing element being set side by side, wherein two sealing element settings separately are at a gate edge, and in addition two The sealing element of root separately is arranged at another described gate edge.
Optionally, between the gate edge and the edge of adjacent another fan gate respective side, there are four The electric-heating belt being set side by side;Wherein
Two electric-heating belts settings are described close with described two, another gate edge at a gate edge Seal is adapted;
The setting of electric-heating belt described in two other is described close with two, the gate edge at another described gate edge Seal is adapted.
Optionally, the sealing system for environmental chamber gate further include:
In the pedestal of flexible strip shape, the outer ring surface of the sealing element is fixedly installed on the base, and the sealing Part is to be laid with by the pedestal along the edge in the side length direction at the gate.
Optionally, the sealing element is all made of silastic material with the pedestal and is made, and the sealing element and the bottom Seat is integrally formed component.
Optionally, the controller includes:
Inflatable decompression valve is inflated for controlling the sealing element;
Vent valve, for deflating to control in the sealing element of inflated condition;
Pressure sensor, for monitoring the pressure state in the sealing element.
Optionally, the sealing system for environmental chamber gate further include:
Temperature sensor is arranged inside environmental chamber, for the indoor temperature of environment described in real-time monitoring;
Electric-heating belt controller, the temperature information for being transmitted according to the temperature sensor control the electric-heating belt Opening and closing.
At least there are following advantageous effects in the application:
The sealing system for environmental chamber gate of the application, by type inflatable sealing element realize ultra-large type Men Yumen, Door and the sealing between ground and building body, indoor environment is effectively ensured not to be influenced by the external world, also, sealing element without When inflation, there are certain safe distances between seal interface, do not influence gate regular event.
Detailed description of the invention
Fig. 1 is the schematic diagram that the gate of sealing element is equipped in the application one embodiment;
Fig. 2 is the enlarged diagram of part A in the application Fig. 1;
Fig. 3 is the enlarged diagram of part B in the application Fig. 1
Fig. 4 is the enlarged diagram of C portion in the application Fig. 1
Fig. 5 is the enlarged diagram of the part D in the application Fig. 1
Fig. 6 is the application for sealing element and gate coupling part in the sealing system one embodiment at environmental chamber gate Schematic cross-section;
Fig. 7 is the application for the sealing in corner on gate in the sealing system one embodiment at environmental chamber gate Part structural schematic diagram;
Fig. 8 is that the application is used in the sealing system one embodiment at environmental chamber gate the corner between gate top doors Seal configuration schematic diagram;
Fig. 9 is the application for close in corner's gate next time in the sealing system one embodiment at environmental chamber gate Seal structure schematic diagram.
Specific embodiment
To keep the purposes, technical schemes and advantages of the application implementation clearer, below in conjunction in the embodiment of the present application Attached drawing, technical solutions in the embodiments of the present application is further described in more detail.In the accompanying drawings, identical from beginning to end or class As label indicate same or similar element or element with the same or similar functions.Described embodiment is the application A 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 use In explanation the application, and it should not be understood as the limitation to the application.Based on the embodiment in the application, ordinary skill people Member's every other embodiment obtained without creative efforts, shall fall in the protection scope of this application.Under Face is described in detail embodiments herein in conjunction with attached drawing.
In the description of the present application, it is to be understood that term " center ", " longitudinal direction ", " transverse direction ", "front", "rear", The orientation or positional relationship of the instructions such as "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside" is based on attached drawing institute The orientation or positional relationship shown is merely for convenience of description the application and simplifies description, rather than the dress of indication or suggestion meaning It sets or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as protecting the application The limitation of range.
1 to Fig. 9 the application is described in further details for the sealing system at environmental chamber gate with reference to the accompanying drawing.
The invention discloses a kind of sealing systems for environmental chamber gate, may include sealing element 1, controller and gas The components such as source.
Sealing element 1 is preferably in flexible tubular;Sealing element 1 is configured to along the fixed laying in the edge in the side length direction at gate 2, Be be laid between gate 2 and surface of wall, between gate 2 and ground and gate 2 and between an adjacent gate.
Further, inflation/deflation can be carried out in the tube cavity of sealing element 1, so that sealing element 1 has nature And inflated condition.
Specifically, sealing element 1 is at nature (unaerated state), sealing element 1 backwards to 2 edge of gate side to pair Answer between the surface of wall or ground or the edge of adjacent another 2 respective side of fan gate of side have preset distance (safety away from From).The preset distance, which can according to need, carries out suitable setting, and purpose makes sealing element 1 be in not shadow in nature Ring the normal on-off action in gate.
Sealing element 1 is in inflated condition, wall table of the sealing element 1 backwards to the side palette respective side at 2 edge of gate The sealing in 2 surrounding gap of gate is realized at face or ground or the edge of adjacent another 2 respective side of fan gate.
Further, gas source is for being that sealing element 1 is inflated by controller;Gas source can according to need carry out it is suitable Selection, such as air, nitrogen etc., in the present embodiment, it is preferred to use air pressurized inflation so that operating cost is low.
In addition, controller is the connection with sealing element 1, it is inflated or controls in inflation shape for controlling sealing element 1 The sealing element 1 of state is deflated.Equally, controller, which can according to need, carries out suitable selection, and in the present embodiment, controller can To include inflatable decompression valve, vent valve and pressure sensor;A mouth in corresponding sealing element 1 can be set in inflatable decompression valve Between (air inlet) and gas source, it is inflated for controlling sealing element 1;And vent valve can be set in the another of corresponding sealing element 1 Between one mouth (gas outlet) and gas source, for deflating to control in the sealing element 1 of inflated condition;Pressure sensor is set It sets on the loading line apart from sealing element inflating port, for monitoring the pressure in sealing element, monitor value is vented and sentences as filling The foundation of disconnected sealing element state.
It should be noted that sealing element 1 can be one end sealing in other preferred embodiments, only there is an opening, Inflatable decompression valve and vent valve can be by the structures of similar three-way pipeline simultaneously with the open communication at this time, and a control fills Gas, another control are deflated, are repeated no more with structure.
The sealing system for environmental chamber gate of the application, by type inflatable sealing element realize ultra-large type Men Yumen, Door and the sealing between ground and building body, indoor environment is effectively ensured not to be influenced by the external world, also, sealing element without When inflation, there are certain safe distances between seal interface, do not influence gate regular event.
Further, the sealing system for environmental chamber gate of the invention can also include electric-heating belt 3.
Electric-heating belt 3 can be using a variety of suitable electric-heating belt structures being currently known;Electric-heating belt 3 is along gate 2 Side length direction is laid on the side of the surface of wall or ground or adjacent another fan gate 2 opposite with the side at 2 edge of gate Edge, and paving location is adapted with the position of sealing element 1, for controllably being heated to sealing element 1.
Sealing system for environmental chamber gate of the invention effectively prevent sealing structure using hidden heat tracing function Frozen, it is highly-safe;Sealing element 1 is heated when required by electric-heating belt 3, so that sealing system is each Kind extreme environment energy normal use, and keep very good sealing performance.
In sealing system for environmental chamber gate of the invention, the quantity of sealing element 1 and electric-heating belt 3 can basis It needs to carry out suitable setting;In embodiment, the sealing element 1 being preferably laid with along each edge in the side length direction at gate 2 Quantity is two, and is parallel to each other;Accordingly, the quantity for the electric-heating belt 3 being preferably laid with along the side length direction at gate 2 and position It is adapted with the quantity of the sealing element 1 of opposite side and position.
Further, when having at least two fan gates 2, one of 2 edge of gate is corresponding with adjacent another fan gate 2 Can have four sealing elements 1 and four electric-heating belts 3 between the edge of side.
At this point, it is preferred that four sealing elements 1 are set side by side, wherein two sealing elements 1 separately are fixed at one big 2 edges of door, in addition two sealing elements 1 separately are fixed at another 2 edge of gate.Equally, four electric-heating belts 3 are simultaneously Column setting;Wherein, two electric-heating belts 3 are fixed at 2 edge of a gate, fixed position and another 2 edge two of gate 1 position of root sealing element is adapted, for heating to this two sealing elements 1.The setting of two other electric-heating belt 3 is above-mentioned another One gate, 2 edge, setting position is adapted with that aforementioned two, 2 edge of gate, 1 position of sealing element, for close to this two Sealing 1 is heated.
Above-mentioned such separation seal heating structure, it is rationally distributed, the sealing between Men Yumen can be further strengthened, together When mutual heating be unaffected again.
Further, the sealing system for environmental chamber gate of the invention can also include pedestal 11.
Pedestal 11 is in flexible strip shape, and the outer ring surface of above-mentioned sealing element 1 is fixedly installed on the pedestal 11, pedestal 11 and gate 1 respective side edge is fixedly connected by sealing fixture;In other words, sealing element 1 is the side length by pedestal 11 along gate 2 The edge in direction is fixed to be laid with.
Sealing element 1 and pedestal 11 can use known a variety of suitable materials, in the present embodiment, preferred seal 1 with Pedestal 11 is all made of silastic material and is made, and can tolerate high temperature and low temperature environment, and preferred seal 1 and pedestal 11 are integrated Shaped component, so that stability is stronger.
Further the sealing system for environmental chamber gate of the invention can be controlled with temperature sensor, electric-heating belt Device.
Temperature sensor is arranged inside environmental chamber, for the indoor temperature of environment described in real-time monitoring;Electric-heating belt control The opening and closing for the temperature information control electric-heating belt 3 that device processed is used to be transmitted according to temperature sensor.
Installation and operation principle of the present invention for the sealing system at environmental chamber gate is as follows:
It is required according to environmental chamber gate Seal Design, inflatable seal 1 and electric-heating belt 3 is separately mounted to gate 1 On the sealing interface of laboratory wall, ground and other adjacent gates, and ensure the part 1 sealed around of gate 1 and electric companion The torrid zone 3 can come into full contact with when sealing.
Rubber seal 1 is without inflation when gate open state, sealing element 1 in the raw, and electric-heating belt 3 Controller is powered (but the inactive heating of heating tape).Before carrying out environmental test in environmental chamber, gate is closed until limit switch It closes, gate is closed to predetermined position (the safe distance about 25mm between sealing element 1 and corresponding seal interface) at this time.Then will 1 gas tube of sealing element is docked with gas source, is adjusted inflatable decompression valve, so that the blowing pressure is reached 0.03MPa, parallel at this time two close Sealing 1 is tightly bonded with corresponding 3 seal interface of electric-heating belt, reaches sealing state.When monitoring to be subzero temperature in environmental chamber When spending, the electric-heating belt controller in big door sealing heating device automatically turns on electric-heating belt 3 and is heated, and guarantees sealing element 1 Surrounding is without frozen phenomenon.
The above, the only specific embodiment of the application, but the protection scope of the application is not limited thereto, it is any Within the technical scope of the present application, any changes or substitutions that can be easily thought of by those familiar with the art, all answers Cover within the scope of protection of this application.Therefore, the protection scope of the application should be with the scope of protection of the claims It is quasi-.

Claims (10)

1. a kind of sealing system for environmental chamber gate characterized by comprising
In the sealing element (1) of flexible tubular, the edge in side length direction of the sealing element (1) along gate (2) is laid with, the sealing Part (1) has nature and inflated condition;Wherein
In the nature, the sealing element (1) backwards to the gate (2) edge side to respective side surface of wall Or there is preset distance between ground or the edge of adjacent another fan gate (2) respective side;
In the inflated condition, respective side described in side palette of the sealing element (1) backwards to the gate (2) edge Surface of wall or ground or the edge of adjacent another fan gate (2) respective side;
The sealing system for environmental chamber gate further include:
Controller, the connection with the sealing element (1) are inflated or are controlled in inflation for controlling the sealing element (1) The sealing element (1) of state is deflated;
Gas source, for being that the sealing element (1) is inflated by the controller.
2. the sealing system according to claim 1 for environmental chamber gate, which is characterized in that further include:
Electric-heating belt (3) is laid on the wall opposite with the side at the gate (2) edge along the side length direction of the gate (2) Body surface face or ground or the edge of adjacent another fan gate (2), and the position of paving location and the sealing element (1) is mutually fitted Match, for controllably being heated to the sealing position of the sealing element (1).
3. the sealing system according to claim 2 for environmental chamber gate, which is characterized in that along the gate (2) The quantity for the sealing element (1) that each edge in side length direction is laid with is two, and is parallel to each other.
4. the sealing system according to claim 3 for environmental chamber gate, which is characterized in that along the gate (2) The quantity of the sealing element (1) of the quantity and position and opposite side for the electric-heating belt (3) that side length direction is laid with and position It is adapted.
5. the sealing system according to claim 4 for environmental chamber gate, which is characterized in that on the gate (2) side Between edge and the edge of adjacent another fan gate (2) respective side, there are four sealing elements (1) being set side by side, Wherein, two sealing element (1) settings separately are at gate (2) edge, in addition two separately described Sealing element (1) is arranged at another described gate (2) edge.
6. the sealing system according to claim 5 for environmental chamber gate, which is characterized in that on the gate (2) side Between edge and the edge of adjacent another fan gate (2) respective side, there are four electric-heating belts being set side by side (3);Wherein
Two electric-heating belts (3) are arranged at gate (2) edge, with another described two, gate (2) edge Sealing element (1) position is adapted;
Electric-heating belt described in two other (3) setting is at another described gate (2) edge, with two, the gate (2) edge Sealing element (1) position is adapted.
7. the sealing system according to claim 1-6 for environmental chamber gate, which is characterized in that further include:
In the pedestal (11) of flexible strip shape, the outer ring surface of the sealing element (1) is fixedly installed on the base, and described close Sealing (1) is to be laid with by the pedestal (11) along the edge in the side length direction of the gate (2).
8. the sealing system according to claim 7 for environmental chamber gate, which is characterized in that the sealing element (1) with The pedestal (11) is all made of silastic material and is made, and the sealing element (1) and the pedestal (11) are integrally formed component.
9. the sealing system according to claim 8 for environmental chamber gate, which is characterized in that the controller includes:
Inflatable decompression valve is inflated for controlling the sealing element (1);
Vent valve, for deflating to control in the sealing element (1) of inflated condition;
Pressure sensor, for monitoring the pressure state in the sealing element (1).
10. the sealing system according to claim 9 for environmental chamber gate, which is characterized in that further include:
Temperature sensor is arranged inside environmental chamber, for the indoor temperature of environment described in real-time monitoring;
Electric-heating belt controller, the temperature information for being transmitted according to the temperature sensor control the electric-heating belt (3) Opening and closing.
CN201811126431.7A 2018-09-26 2018-09-26 Sealing system for environmental chamber gates Active CN109184520B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201811126431.7A CN109184520B (en) 2018-09-26 2018-09-26 Sealing system for environmental chamber gates

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201811126431.7A CN109184520B (en) 2018-09-26 2018-09-26 Sealing system for environmental chamber gates

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CN109184520A true CN109184520A (en) 2019-01-11
CN109184520B CN109184520B (en) 2020-06-16

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110206465A (en) * 2019-04-14 2019-09-06 中国城市建设研究院有限公司 Exclusion seal door
CN113834682A (en) * 2021-11-26 2021-12-24 中国飞机强度研究所 Freezing prevention device for airplane test

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08136114A (en) * 1994-11-07 1996-05-31 Tabai Espec Corp Door of sealed container
CN101886485A (en) * 2010-07-01 2010-11-17 高速铁路建造技术国家工程实验室 Environmental simulation laboratory
CN204941228U (en) * 2015-07-15 2016-01-06 崔静涛 The safe air tight door of air filling type biology laboratory
CN106401427A (en) * 2016-09-20 2017-02-15 天津航天瑞莱科技有限公司 Seal structure for ultralow temperature environment simulation equipment door
CN107575141A (en) * 2017-09-20 2018-01-12 宝鸡大医数码机器人有限责任公司 One kind flaw detection indoor built-in protection gate
CN108050256A (en) * 2017-11-29 2018-05-18 中国飞机强度研究所 A kind of high temperature and high pressure kettle wide arc gap compensating type sealing device
CN108150066A (en) * 2018-03-16 2018-06-12 军事科学院系统工程研究院卫勤保障技术研究所 A kind of double bolloon inflatable gas-tight door and its air-tightness self checking method

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08136114A (en) * 1994-11-07 1996-05-31 Tabai Espec Corp Door of sealed container
CN101886485A (en) * 2010-07-01 2010-11-17 高速铁路建造技术国家工程实验室 Environmental simulation laboratory
CN204941228U (en) * 2015-07-15 2016-01-06 崔静涛 The safe air tight door of air filling type biology laboratory
CN106401427A (en) * 2016-09-20 2017-02-15 天津航天瑞莱科技有限公司 Seal structure for ultralow temperature environment simulation equipment door
CN107575141A (en) * 2017-09-20 2018-01-12 宝鸡大医数码机器人有限责任公司 One kind flaw detection indoor built-in protection gate
CN108050256A (en) * 2017-11-29 2018-05-18 中国飞机强度研究所 A kind of high temperature and high pressure kettle wide arc gap compensating type sealing device
CN108150066A (en) * 2018-03-16 2018-06-12 军事科学院系统工程研究院卫勤保障技术研究所 A kind of double bolloon inflatable gas-tight door and its air-tightness self checking method

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110206465A (en) * 2019-04-14 2019-09-06 中国城市建设研究院有限公司 Exclusion seal door
CN113834682A (en) * 2021-11-26 2021-12-24 中国飞机强度研究所 Freezing prevention device for airplane test
CN113834682B (en) * 2021-11-26 2022-03-04 中国飞机强度研究所 Freezing prevention device for airplane test

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