CN214190163U - Temperature, height and humidity simulation test device - Google Patents
Temperature, height and humidity simulation test device Download PDFInfo
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- CN214190163U CN214190163U CN202022897721.0U CN202022897721U CN214190163U CN 214190163 U CN214190163 U CN 214190163U CN 202022897721 U CN202022897721 U CN 202022897721U CN 214190163 U CN214190163 U CN 214190163U
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Abstract
The utility model belongs to the technical field of simulation test, and discloses a temperature, height and humidity simulation test device, which comprises a vacuum chamber, a vacuum system, a measurement and control system, a temperature control system and an atomized water supply system, wherein test equipment is arranged in the vacuum chamber, the measurement and control system is connected with the vacuum chamber, the vacuum system is connected with one end of the vacuum chamber, and the temperature control system and the atomized water supply system are connected with the other end of the vacuum chamber; the vacuum chamber is also provided with an air inlet combination valve. The test device has the capability of regulating pressure, regulating temperature and controlling humidity, and can build a real atmospheric environment within the altitude range of 0km to 18km under the atmospheric working condition of cold days and hot days. The requirements of airborne equipment on a temperature-height-humidity ground comprehensive test are met. The built-in measurement and control system of the test device can realize automatic modulation of test working conditions.
Description
Technical Field
The utility model belongs to the technical field of the analogue test, a analogue test device of aircraft equipment is related to, concretely relates to temperature high humidity analogue test device.
Background
The current civil and military aircraft can fly at an altitude of 10km or even higher. Within this range of altitude, the atmospheric temperature, humidity, pressure vary greatly as altitude increases. This places demands on the moisture resistance and structural strength of the aircraft and onboard equipment, and requires that the onboard equipment be able to function properly in low temperature environments.
Before the airplane is tested to fly, a ground test is required to be carried out to check whether the equipment can withstand the adverse effects caused by the changes of atmospheric temperature, humidity and air pressure caused by the changes of altitude, and the equipment can work normally for a long time.
At present, the adjustment precision of a simulation test device which integrates the three factors is not high, and particularly, the air pressure can be adjusted only in a larger range.
SUMMERY OF THE UTILITY MODEL
In order to solve the above problems, the present invention provides a temperature and humidity simulation test device, which can provide an air environment with a temperature range of-60 ℃ to 70 ℃ and an air pressure range of 0.001kPa to 101.325kPa (absolute pressure), and has a capability of humidifying air.
The technical scheme of the utility model is that:
a temperature, height and humidity simulation test device comprises a vacuum chamber, a vacuum system, a measurement and control system, a temperature control system and an atomized water supply system, wherein test equipment is arranged in the vacuum chamber; the vacuum chamber is also provided with an air inlet combination valve.
Furthermore, a temperature sensor, a pressure sensor and a humidity sensor are arranged in the vacuum chamber, and the temperature sensor, the pressure sensor and the humidity sensor are connected with a measurement and control system.
Further, the vacuum system comprises a water ring pump and a roots pump.
Further, the air inlet combination valve comprises a series of air inlet valves with different adjusting precisions, and the air inlet combination valve is connected with the vacuum chamber and the atmosphere.
Furthermore, the temperature control system comprises an electric heater, a refrigerating unit and a low-pressure air source, the low-pressure air source is respectively connected with the electric heater and the refrigerating unit through two parallel pipelines, and the two pipelines are connected with the vacuum chamber after being converged.
Furthermore, the atomized water supply system comprises an air source, a constant flow water source and a heating device, wherein a pipeline of the constant flow water source is converged with a pipeline of the air source after passing through the heating device and then is connected with the vacuum chamber.
The utility model has the advantages that:
the test device has the capability of regulating pressure, regulating temperature and controlling humidity, and can build a real atmospheric environment within the altitude range of 0km to 18km under the atmospheric working condition of cold days and hot days. The requirements of airborne equipment on a temperature-height-humidity ground comprehensive test are met. The built-in measurement and control system of the test device can realize automatic modulation of test working conditions.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention;
the system comprises a vacuum chamber 1, a vacuum system 2, a measurement and control system 3, a temperature control system 4, an electric heater 4-1, a refrigerating unit 4-2, a low-pressure air source 4-3 and a test device 5.
Detailed Description
This section is an embodiment of the present invention for explaining and explaining the technical solution of the present invention.
A temperature, altitude and humidity simulation test device comprises a vacuum chamber 1, a vacuum system 2, a measurement and control system 3, a temperature control system 4 and an atomized water supply system, wherein a test device 5 is arranged in the vacuum chamber 1, the measurement and control system 3 is connected with the vacuum chamber 1, the vacuum system 2 is connected with one end of the vacuum chamber 1, and the temperature control system 4 and the atomized water supply system are connected with the other end of the vacuum chamber 1; the vacuum chamber 1 is also provided with an air inlet combination valve.
A temperature sensor, a pressure sensor and a humidity sensor are arranged in the vacuum chamber 1, and the temperature sensor, the pressure sensor and the humidity sensor are connected with the measurement and control system 3.
The vacuum system 2 includes a water ring pump and a roots pump.
The air inlet combination valve comprises a series of air inlet valves with different adjusting precisions, and the air inlet combination valve is connected with the vacuum chamber 1 and the atmosphere.
The temperature control system 4 comprises an electric heater 4-1, a refrigerating unit 4-2 and a low-pressure air source 4-3, the low-pressure air source 4-3 is respectively connected with the electric heater 4-1 and the refrigerating unit 4-2 through two parallel pipelines, and the two pipelines are connected with the vacuum chamber 1 after being converged.
The atomized water supply system comprises an air source, a constant flow water source and a heating device, wherein a pipeline of the constant flow water source is converged with a pipeline of the air source after passing through the heating device and then is connected with the vacuum chamber 1.
The utility model discloses a working method and principle as follows:
the hollow sealed tank body is adopted as the necessary envelope for creating a specific air environment. The sealed tank body is pumped by adopting the combination of a water ring pump and a roots pump so as to create a specific air pressure environment in the tank body. The refrigeration turbine and the heater are adopted to respectively modulate the temperature of the air flow provided by the air source, thereby controlling the temperature of the air in the tank body. The humidity modulation of the air flow supplied by the air source is realized by adopting a method of atomizing and heating the liquid water with constant flow.
Information cross-linking exists between the measurement and control system 3 and the pressure sensor, the temperature sensor, various valves and the electric heater power controller, and pressure and temperature parameters can be monitored, the valves are controlled, and the heater power is adjusted.
After the vacuum chamber 1 is closed, the temperature and the pressure in the chamber and other measuring points can be monitored through the measurement and control system 3 and corresponding sensors.
Through observing and controling system 3, open the corresponding valve of vacuum system 2, communicate vacuum system 2 and vacuum chamber 1 internal environment, then drive water ring pump, lobe pump and bleed to vacuum chamber 1, the atmospheric pressure that rethread regulation air inlet combination valve detected through observing and controlling system 3 builds a specific atmospheric pressure environment in the under-deck.
By the measuring and controlling system 3, the corresponding valves of the heater and the refrigerating unit are opened, so that air supplied by an air source can flow through the electric heater or the refrigerating unit. The air supply temperature to the vacuum chamber can be modulated by adjusting the opening of the valve, changing the proportion of air flowing through the heater and the refrigerating unit, controlling the power of the heater, and thus creating an air environment in the vacuum chamber with the temperature ranging from-60 ℃ to 70 ℃.
The refrigeration turbine and the heater are adopted to respectively modulate the temperature of the air flow provided by the air source, thereby controlling the temperature of the air in the tank body.
The humidity modulation of the air flow supplied by the air source is realized by adopting a method of atomizing and heating the liquid water with constant flow.
Claims (6)
1. A temperature, height and humidity simulation test device is characterized by comprising a vacuum cabin (1), a vacuum system (2), a measurement and control system (3), a temperature control system (4) and an atomized water supply system, wherein test equipment (5) is arranged in the vacuum cabin (1), the measurement and control system (3) is connected with the vacuum cabin (1), the vacuum system (2) is connected with one end of the vacuum cabin (1), and the temperature control system (4) and the atomized water supply system are connected with the other end of the vacuum cabin (1); the vacuum chamber (1) is also provided with an air inlet combination valve.
2. The temperature, height and humidity simulation test device according to claim 1, wherein a temperature sensor, a pressure sensor and a humidity sensor are arranged in the vacuum chamber (1), and the temperature sensor, the pressure sensor and the humidity sensor are connected with the measurement and control system (3).
3. A temperature and humidity simulation test device according to claim 1, wherein the vacuum system (2) comprises a water ring pump and a roots pump.
4. A temperature, altitude and humidity simulation test device according to claim 1, wherein the air inlet combination valve comprises a series of air inlet valves with different adjustment precisions, and the air inlet combination valve is connected with the vacuum chamber (1) and the atmosphere.
5. The temperature, height and humidity simulation test device according to claim 1, wherein the temperature control system (4) comprises an electric heater (4-1), a refrigerating unit (4-2) and a low-pressure air source (4-3), the low-pressure air source (4-3) is respectively connected with the electric heater (4-1) and the refrigerating unit (4-2) through two parallel pipelines, and the two pipelines are connected with the vacuum chamber (1) after being merged.
6. A temperature, height and humidity simulation test device as claimed in claim 1, wherein the atomized water supply system comprises an air source, a constant flow water source and a heating device, and the pipeline of the constant flow water source is converged with the pipeline of the air source after passing through the heating device and then connected with the vacuum chamber (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022897721.0U CN214190163U (en) | 2020-12-04 | 2020-12-04 | Temperature, height and humidity simulation test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022897721.0U CN214190163U (en) | 2020-12-04 | 2020-12-04 | Temperature, height and humidity simulation test device |
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| Publication Number | Publication Date |
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| CN214190163U true CN214190163U (en) | 2021-09-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202022897721.0U Active CN214190163U (en) | 2020-12-04 | 2020-12-04 | Temperature, height and humidity simulation test device |
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| CN (1) | CN214190163U (en) |
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2020
- 2020-12-04 CN CN202022897721.0U patent/CN214190163U/en active Active
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