Environment simulation box with adjustable vacuum degree, temperature and humidity

Abstract

The utility model provides an environment simulation box with adjustable vacuum degree, temperature and humidity, which comprises a box body, a vacuum degree unit, a temperature unit, a humidity unit and a control unit, can be used for adjusting one or more of vacuum degree, temperature and humidity, is simple in structure and convenient to adjust, can be used for simulating certain environment conditions, and can be applied to the field of environment simulation. The device can be applied to testing of materials, equipment and the like working in the environments, such as high and low temperature switching, high and low humidity switching, aviation environments, aerospace environments and the like.

Description

Technical Field

[0001] The utility model belongs to the technical field of detection equipment and detection instruments, and specifically relates to an environmental simulation box with adjustable vacuum degree, temperature and humidity. Technical Background

[0002] The normal operation of equipment is closely related to its actual working environment. Equipment working in special environments requires rigorous design and testing before it can be used in practice.

[0003] For example, aerospace technology is one of the most active and influential fields of science and technology in the 21st century. The aerospace environment is different from the earth's environment. Spacecraft often need to work in an environment with sudden changes in temperature and humidity, and aircraft work in a high vacuum and high and low temperature rapid change space environment for a long time. Therefore, various electronic and electrical materials and semiconductor materials used in spacecraft and aircraft need to be strictly screened in advance, and need to simulate the aerospace environment for rigorous testing to examine whether the materials are suitable for this special environment, so as to avoid property losses and personal safety caused by material failure. Utility Model Content

[0004] The utility model provides an environmental simulation box with adjustable vacuum degree, temperature and humidity, which can adjust one or more of the vacuum degree, temperature and humidity to simulate the actual environment. Therefore, it can be applied to equipment operation testing and material testing in special environments such as high and low temperature switching, high and low humidity switching, aerospace environment, etc.

[0005] The technical solution adopted by the utility model is: an environmental simulation box with adjustable vacuum degree, temperature and humidity, such as Figure 1 As shown, it includes a box body, a vacuum unit, a temperature unit, a humidity unit, and a control unit;

[0006] The vacuum unit includes a vacuum chamber located in the box, a vacuum pump for adjusting the vacuum degree in the vacuum chamber, and a detector for monitoring the vacuum degree in the vacuum chamber;

[0007] The temperature unit includes a heating device for increasing the temperature inside the box, a refrigeration device for reducing the temperature inside the box, and a temperature detector for detecting the temperature inside the box;

[0008] The humidity unit includes a humidifying device for increasing the moisture inside the box, a dehumidifying device for removing the moisture inside the box, and a humidity detector for detecting the humidity inside the box;

[0009] The control unit is used to collect detection data from the vacuum detector, temperature detector, and humidity detector, and to control the opening and closing of one or more of the heating device, refrigeration device, humidification device, dehumidification device, and vacuum pump.

[0010] The material constituting the box body has sealing and heat preservation properties, can prevent the loss of moisture and heat in the box body and the entry of moisture and heat outside the box body, and has high temperature resistance, low temperature resistance and moisture resistance, such as stainless steel material. Preferably, a sealing layer and a heat preservation layer are set on the inner wall of the box body.

[0011] The material constituting the vacuum chamber has good thermal conductivity, and is resistant to high temperature, low temperature, high humidity, and dryness, and preferably has strong hardness, such as various stainless steel materials, alloy materials, and the like.

[0012] Preferably, the vacuum pump and the vacuum detector are arranged outside the box. The vacuum detector is connected to the vacuum pump through a sealed tube, and the vacuum pump is connected to the vacuum chamber through a pipeline with high temperature resistance, low temperature resistance and moisture resistance. Preferably, a valve is provided for opening or closing the pipeline, and the control unit can preferably control the valve.

[0013] The heating device is not limited, and includes a resistance type heating device, which generates heat by applying electricity. Preferably, a valve for turning on or off the power supply for the heating device is provided between the power supply and the heating device, and the control unit can preferably control the valve. The heating device is preferably provided at the bottom of the box or at the side wall near the bottom of the box.

[0014] The refrigeration device is not limited. As an implementation method, the refrigeration device includes a coolant and a coolant transmission pipe, the coolant transmission pipe is arranged inside the box, preferably arranged at the upper part of the box, and further preferably arranged around the upper part of the box. The coolant enters the box through the coolant transmission pipe, absorbs the heat in the box, vaporizes, and flows out of the box. Preferably, a valve for connecting or closing the coolant transmission pipe is provided between the coolant and the coolant transmission pipe, and the control unit can preferably control the valve.

[0015] The humidifying device is not limited. As an implementation, the humidifying device is an electric humidifier, including a heater and a container, the heater heats water to generate water vapor, and the water vapor enters the box through the gas inlet. Preferably, a fan is also provided in the box to accelerate the diffusion of steam in the box. Preferably, a valve for connecting or closing the box is provided between the container and the box, and the control unit can preferably control the valve.

[0016] The dehumidification device is not limited. As an implementation method, the dehumidification device adopts a refrigeration dehumidification method, including an air extractor and a dehumidification pipeline arranged outside the box, and the humid air in the box is sucked into the dehumidification pipeline under the action of the air extractor, and condensed into water after passing through the refrigeration mechanism. Preferably, a valve is set between the box and the dehumidification pipeline to connect the box or close the dehumidification pipeline, and the control unit can preferably control the valve.

[0017] If the performance of the test sample changes under high vacuum conditions when the temperature and humidity change, the details are as follows:

[0018] (1) The sample is placed in the vacuum chamber, and the control unit controls the vacuum pump and the vacuum detector to start. When the vacuum detector shows that the vacuum degree reaches the set value, the vacuum degree in the vacuum chamber reaches the set value, and the vacuum pump is turned off or the connection between the vacuum pump and the vacuum chamber is turned off;

[0019] (2) The control unit controls the heating device or the cooling device in the temperature unit to turn on, and controls the temperature detector to turn on. When the temperature detector displays that the temperature reaches the set value, the temperature in the box reaches the set value, and the control unit controls to turn off the heating device or the cooling device;

[0020] The control unit controls the humidification device or dehumidification device in the humidity unit to turn on, and controls the humidity detector to turn on. When the humidity detector shows that the humidity reaches the set value, the humidity in the box reaches the set value, and the control unit controls to turn off the humidification device or dehumidification device.

[0021] If only the performance change of the sample under certain temperature and / or humidity conditions is to be tested, the sample can be placed outside the vacuum chamber in the box, or inside the vacuum chamber, preferably outside the vacuum chamber, and the control method is as described in (2) above.

[0022] Preferably, the control unit includes an operation terminal, which includes functions such as vacuum setting, temperature setting, humidity setting, real-time vacuum display, real-time temperature display, real-time humidity display, and environmental mode selection. The environmental modes include aviation environment mode, aerospace environment mode, etc.

[0023] Compared with the prior art, the box provided by the utility model can adjust one or more of the vacuum degree, temperature and humidity. It has a simple structure and is easy to adjust. It can be used to simulate certain environmental conditions, such as high and low temperature switching, high and low humidity switching, aviation environment, aerospace environment, etc., and can be used for testing materials, equipment, etc. working in these environments. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a structural schematic diagram of an environmental simulation box with adjustable vacuum degree, temperature and humidity in the utility model.

[0025] Figure 2 It is a specific structural schematic diagram of the vacuum, temperature and humidity adjustable environment simulation box in the utility model.

[0026] Figure 2 The figures in the figure are as follows: box 1, vacuum chamber 2, vacuum pump 3, vacuum tester 4, first pipeline 5, second pipeline 6, third pipeline 7, fourth pipeline 8, fifth pipeline 9, resistance heater 10, first valve 11, second valve 12, third valve 13, fourth valve 14, fifth valve 15, power supply 16, coolant 17, coolant recovery device 18, heater 19, water 20, fan 21, first sample table 22, second sample table 23, third sample table 24, temperature detector 25, humidity detector 26, vacuum fan 27, refrigeration mechanism 28. DETAILED DESCRIPTION

[0027] The present invention is described below based on embodiments, but the present invention is not limited to these embodiments. The embodiments described below are intended to facilitate the understanding of the present invention and do not have any limiting effect on the present invention.

[0028] In the detailed description of the utility model below, some specific details are described in detail. The utility model can be fully understood by those skilled in the art without the description of these details. In order to avoid confusing the essence of the utility model, known methods, processes, processes, components and circuits are not described in detail. For the sake of clarity, the various parts in the drawings are not drawn to scale. In addition, some known parts may not be shown.

[0029] Unless the context clearly requires otherwise, the words "include", "comprising" and the like throughout the specification and claims should be interpreted as inclusive rather than exclusive or exhaustive; that is, as "including but not limited to". In the description of the present invention, it should be understood that the terms "first", "second", etc. are used for descriptive purposes only and cannot be understood as indicating or implying relative importance. In addition, in the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0030] like Figure 1 As shown, the vacuum, temperature and humidity adjustable environmental simulation box includes a box body, a vacuum unit, a temperature unit, a humidity unit, and a control unit.

[0031] The vacuum unit comprises a vacuum chamber located in the box, a vacuum pump for adjusting the vacuum degree in the vacuum chamber, and a detector for monitoring the vacuum degree in the vacuum chamber.

[0032] The temperature unit includes a heating device and a refrigeration device located in the box, and a temperature detector for detecting the temperature in the box.

[0033] The humidity unit comprises a humidifying device and a dehumidifying device located in the box, and a humidity detector for detecting the humidity in the box.

[0034] The control unit is used to collect the detection data of the vacuum detector, temperature detector and humidity detector, and control the opening and closing of the heating device, refrigeration device, humidification device, dehumidification device, and vacuum pump.

[0035] The material constituting the box body has sealing and heat preservation properties, can prevent the loss of moisture and heat in the box body and the entry of moisture and heat outside the box body, and has high temperature resistance, low temperature resistance and moisture resistance. In some embodiments, the box body is made of stainless steel. In other embodiments, a sealing layer and a heat preservation layer are set on the inner wall of the box body.

[0036] The material constituting the vacuum chamber has good thermal conductivity and sealing performance, and is resistant to high temperature, low temperature, moisture and dryness, and preferably has strong hardness. In some embodiments, the vacuum chamber is formed of thickened stainless steel material.

[0037] In some embodiments, the heating device is a resistance type heating device that generates heat by applying electricity. Preferably, the heating device is arranged at the bottom of the box or at a side wall near the bottom of the box.

[0038] In some embodiments, the refrigeration device includes a coolant and a coolant transmission pipe. The coolant transmission pipe is arranged inside the box, preferably at the upper part of the box, and further preferably around the upper part of the box. The coolant enters the box through the coolant transmission pipe, absorbs the heat in the box, vaporizes, and then flows out of the box.

[0039] In some embodiments, the humidifying device is an electric humidifier, including a heater and a gas inlet, the heater heats water to generate water vapor, and the water vapor enters the box through the gas inlet. Preferably, a fan is also provided in the box to accelerate the diffusion of steam in the box.

[0040] In some embodiments, the dehumidification device adopts a refrigeration dehumidification method, including an exhaust fan and a dehumidification pipe arranged outside the box. The humid air in the box is sucked into the dehumidification pipe under the action of the exhaust fan, and condensed into water after passing through the refrigeration mechanism.

[0041] Figure 2 The figure shows a specific embodiment of an environmental simulation box with adjustable vacuum, temperature and humidity, which comprises a box body 1 in which a vacuum unit, a temperature unit, a humidity unit and a control unit are arranged.

[0042] The vacuum unit includes a vacuum chamber 2 located in a housing 1, a vacuum pump 3 for adjusting the vacuum in the vacuum chamber 2, and a detector 4 for monitoring the vacuum in the vacuum chamber 2. In this embodiment, the vacuum pump 3 and the vacuum detector 4 are arranged outside the housing 1. The vacuum pump 3 is connected to the vacuum chamber 2 through a first pipe 5 with high temperature resistance, low temperature resistance and moisture resistance, and the first pipe 5 is opened or closed through a first valve 11. The vacuum detector 4 is connected to the vacuum pump 3 through a sealed second pipe 6.

[0043] The temperature unit includes a heating device and a refrigeration device located in the box 1, and a temperature detector 25 for detecting the temperature in the box 1. The heating device is a resistive heater 10, which is preferably arranged at the bottom of the box 1 or the side wall of the box 1 near the bottom, and is connected to a power source 16 through a second valve 12, and the power source 16 is arranged outside the box 1. The refrigeration device includes a coolant 17 and a third pipe 7 for transmitting the coolant 17, and the third pipe 7 is arranged inside the box 1, preferably at the upper part of the box 1, and further preferably around the upper part of the box. The coolant enters the box 1 through the third pipe 7, absorbs the heat in the box 1, vaporizes, and flows out of the box 1, and is recovered by the coolant recovery device 18. A third valve 13 is arranged between the coolant 17 and the third pipe 7.

[0044] The humidity unit includes a humidifying device, a dehumidifying device, and a humidity detector 26 for detecting the humidity in the box 1. In this embodiment, the humidifying device is an electric humidifier, including a heater 19 and a container 20 arranged outside the box 1, the heater 19 is used to heat the container, the container 20 contains water, and the container 20 is connected to the box 1 through the fourth pipe 8. When the heater 19 works, the water in the container 20 generates water vapor, and the water vapor enters the box 1 through the fourth pipe 8. The fourth pipe 8 is provided with a fourth valve 14 for opening or closing the fourth pipe. Preferably, a fan 21 is also provided in the box 1 to accelerate the diffusion of steam in the box 1. The dehumidifying device adopts a refrigeration dehumidification method, including an exhaust fan 27 arranged outside the box, the exhaust fan 27 is connected to the box 1 through the fifth pipe 9, and the humid air in the box 1 is sucked into the fifth pipe 9 under the action of the exhaust fan 27, and condensed into water after passing through the refrigeration mechanism 28. The fifth pipe 9 is provided with a fifth valve 15 for opening or closing the fifth pipe 9.

[0045] The control unit is used to collect detection data from the vacuum detector, the temperature detector, and the humidity detector, control the opening and closing of one or more of the heating device, the refrigeration device, the humidifying device, the dehumidifying device, and the vacuum pump, and control the opening or closing of the first valve 11, the second valve 12, the third valve 13, the fourth valve 14, and the fifth valve 15.

[0046] If the performance of the test sample changes under high vacuum conditions when the temperature and humidity change, the details are as follows:

[0047] (1) The sample is placed on the first sample table 22 in the vacuum chamber 2, and the control unit controls the vacuum pump 3 and the vacuum detector 4 to start. When the vacuum detector 4 shows that the vacuum degree reaches the set value, the vacuum degree in the vacuum chamber 2 reaches the set value, and the vacuum pump 3 is turned off or / and the first valve 11 between the vacuum pump 3 and the vacuum chamber 2 is closed;

[0048] (2) When the temperature inside the box needs to be increased, the control unit controls the resistance type heater 10 to turn on and the second valve 12 to open, and the temperature detector displays the temperature inside the box. When the temperature reaches the set value, the control unit controls the resistance type heater 10 to turn off and / or the second valve 12 to close.

[0049] When the temperature inside the box needs to be lowered, the control unit controls the third valve 13 to open, and the temperature detector displays the temperature inside the box. When the temperature reaches the set value, the control unit controls the third valve 13 to close.

[0050] When it is necessary to increase the moisture inside the box, the control unit controls the fourth valve 14 to open and the heater 19 to work, and the humidity detector displays the humidity inside the box. When the humidity reaches the set value, the control unit controls the fourth valve 14 to close and / or the heater 19 to close.

[0051] When it is necessary to remove moisture from the box, the control unit controls the fifth valve 15 to open and the refrigeration mechanism 28 to work, and the humidity detector displays the humidity in the box. When the humidity reaches the set value, the control unit controls the fifth valve 15 to close and / or the refrigeration mechanism 28 to close.

[0052] If only the performance change of the sample under certain temperature and / or humidity conditions is to be tested, the sample can be placed on the second sample stage 23 or the third sample stage 24 in the box 1, or on the first sample stage 22 in the vacuum chamber, preferably on the second sample stage 23 or the third sample stage 24 outside the vacuum chamber, and the control method is as described in (2) above.

[0053] The environmental simulation box can also be used to test the performance changes of samples in an environment where high temperature and low temperature are quickly switched. For example, when simulating an environment where a high temperature is maintained for 2 hours and then switched to a low temperature within 30 minutes, the control unit controls the resistance heater 10 to turn on and the second valve 12 to open, and the temperature detector displays the temperature in the box. When the temperature reaches the set high temperature value, it is kept warm for 2 hours, and then the control unit controls the resistance heater 10 to turn off and / or the second valve 12 to close, controls the third valve 13 to open, and controls the coolant flow rate so that the temperature reaches the set low temperature value within 30 minutes.

[0054] Preferably, the environmental simulation box also includes an operation terminal, which includes functions such as vacuum setting, temperature setting, humidity setting, real-time vacuum display, real-time temperature display, real-time humidity display, environmental mode selection, etc. The environmental modes include aviation environment mode, aerospace environment mode, etc.

[0055] The embodiments described above provide a detailed description of the technical solution of the utility model. It should be understood that the above is only a specific embodiment of the utility model and is not intended to limit the utility model. Any modifications, supplements or similar substitutions made within the scope of the principles of the utility model should be included in the protection scope of the utility model.

Claims

1. An environmental simulation box with adjustable vacuum, temperature and humidity, characterized by: It includes a box body, a vacuum unit, a temperature unit, a humidity unit, and a control unit; The vacuum unit includes a vacuum chamber located in the box, a vacuum pump for adjusting the vacuum degree in the vacuum chamber, and a detector for monitoring the vacuum degree in the vacuum chamber; The temperature unit includes a heating device for increasing the temperature inside the box, a refrigeration device for reducing the temperature inside the box, and a temperature detector for detecting the temperature inside the box; The humidity unit includes a humidifying device for increasing the moisture inside the box, a dehumidifying device for removing the moisture inside the box, and a humidity detector for detecting the humidity inside the box; The control unit is used to collect detection data from the vacuum detector, temperature detector, and humidity detector, and to control the opening and closing of one or more of the heating device, refrigeration device, humidification device, dehumidification device, and vacuum pump.

2. The environmental simulation box according to claim 1, characterized in that: A sealing layer and a heat-insulating layer are arranged on the inner wall of the box.

3. The environmental simulation box according to claim 1, characterized in that: The vacuum pump and the vacuum degree detector are arranged outside the box.

4. The environmental simulation box according to claim 1, characterized in that: The vacuum pump is connected to the vacuum chamber via a pipeline with high temperature resistance, low temperature resistance and moisture resistance.

5. The environmental simulation box according to claim 4, characterized in that: A valve is provided for opening or closing the pipeline.

6. The environmental simulation box according to claim 5, characterized in that: The control unit may control the valve.

7. The environmental simulation box according to claim 1, characterized in that: The heating device is a resistance type heating device.

8. The environmental simulation box according to claim 7, characterized in that: A valve is provided between the power supply and the heating device for switching on or off the power supply for the heating device.

9. The environmental simulation box according to claim 8, characterized in that: The control unit may control the valve.

10. The environmental simulation box according to claim 1, characterized in that: The heating device is arranged at the bottom of the box or at a side wall close to the bottom of the box.

11. The environmental simulation box according to claim 1, characterized in that: The refrigeration device includes a coolant and a coolant transmission pipe. The coolant transmission pipe is arranged inside the box. The coolant enters the box through the coolant transmission pipe, absorbs heat in the box, vaporizes, and then flows out of the box.

12. The environmental simulation box according to claim 11, characterized in that: A valve is provided on the coolant transmission pipeline for connecting or closing the coolant transmission pipeline.

13. The environmental simulation box according to claim 12, characterized in that: The control unit may control the valve.

14. The environmental simulation box according to claim 11, characterized in that: The cooling liquid transmission pipeline is arranged at the upper part of the box body.

15. The environmental simulation box according to claim 14, characterized in that: The cooling liquid transmission pipeline is arranged around the upper part of the box body.

16. The environmental simulation box according to claim 1, characterized in that: The humidifying device is an electric humidifier, which comprises a heater and a container. The heater heats water to generate water vapor, and the water vapor enters the box through the gas inlet.

17. The environmental simulation box according to claim 16, characterized in that: A fan is also arranged in the box body to accelerate the diffusion of steam in the box body.

18. The environmental simulation box according to claim 16, characterized in that: A valve for connecting or closing the box body is arranged between the container and the box body.

19. The environmental simulation box according to claim 18, characterized in that: The control unit may control the valve.

20. The environmental simulation box according to claim 1, characterized in that: The dehumidification device adopts refrigeration Dehumidification The method includes an air extractor and a dehumidification pipe arranged outside the box, and the humid air in the box is sucked into the air extractor. Dehumidification pipe road , and condenses into water after passing through the refrigeration mechanism.

21. The environmental simulation box according to claim 20, characterized in that: A valve is arranged on the dehumidification pipeline to connect the box or close the dehumidification pipeline.

22. The environmental simulation box according to claim 21, characterized in that: The control unit may control the valve.

23. The environmental simulation box according to claim 1, characterized in that: The environment is high and low temperature switching, high and low humidity switching, an aviation environment, or a space environment.

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