Dew point conditioning cabinet

Abstract

The utility model relates to experimental equipment technical field, concretely relates to a dew point adjusting box, include: atmosphere replacement storehouse and dew point environment box intercommunication, dry gas inlet gas path and dew point environment box intercommunication for providing dry gas to dew point environment box, humidity inlet gas path and dew point environment box intercommunication for providing humidity to dew point environment box, control machine sets up in dew point environment box outside, and control machine and dew point tester, dry gas inlet gas path and humidity inlet gas path communication connection. The utility model through arranging dew point tester, dry gas inlet gas path and humidity inlet gas path in dew point environment box, and through control machine to each gas path carries out intelligent adjustment, has realized to dew point environment box in humidity and dew point real -time monitoring and accurate control, can realize the establishment of ultralow dew point environment, satisfies the demand of sample test under low humidity or dry condition, can also according to real -time measurement data automatic dynamic regulation dew point, guarantees environmental parameter stable and can change flexibly along with experimental demand.

Description

Technical Field

[0001] This utility model relates to the field of experimental equipment technology, specifically to a dew point regulating box. Background Technology

[0002] In fields such as high-end lithium-ion battery manufacturing, precision optical coating, and the preparation of moisture-sensitive materials, moisture directly leads to decreased product yield, performance degradation, and even failure. Therefore, it is necessary to maintain the environmental dew point at a consistently high standard of low dew point conditions (e.g., below -40°C) over the long term. Existing technologies offer various solutions for achieving low dew point conditions. For example, solution dehumidification or freeze-drying combined with pressurization can lower the air dew point to approximately -20°C. Low-dew-point rotary dehumidifiers can reach -50°C. Widely used low-dew-point environmental control equipment, such as inert atmosphere glove boxes, can maintain a consistently stable dew point environment within the box at an ultra-low dew point of -80°C using molecular sieve purification columns.

[0003] However, none of these methods can meet the need for automatic dynamic adjustment of the dew point as it changes constantly. In the aforementioned fields, for different stages of the production process (such as battery baking, electrolyte injection, and formation) or for materials with different degrees of moisture sensitivity, different low dew point control technologies or equipment can be matched for different stages or different materials for mass production. However, from the perspective of scientific research such as technology development or performance testing, there is a greater need for an automatic dynamic dew point adjustment device that can seamlessly and accurately switch and maintain different dew point setpoints through real-time sensor monitoring and feedback control systems, thereby matching the more flexible and adaptable dew point requirements that may be encountered during the research and development process.

[0004] Common dew point adjustment devices have limited adjustment ranges, typically above -10°C, which cannot meet the ultra-low dew point requirements of high-end manufacturing, precision scientific research, and other scenarios. Utility Model Content

[0005] (a) Purpose of the utility model The purpose of this invention is to provide a dew point regulating box that can achieve a low dew point environment and automatically and dynamically adjust the dew point, thus solving the problem that existing equipment or technical solutions cannot simultaneously achieve an ultra-low dew point environment and automatically and dynamically adjust the dew point.

[0006] (II) Technical Solution To solve the above problems, this utility model provides a dew point conditioning box, including: a dew point environment box, an atmosphere replacement chamber, a dew point tester, a control unit, a dry gas inlet air path, and a wet gas inlet air path; The dew point environment chamber is used to hold the sample to be tested. The atmosphere replacement chamber is located outside the dew point environment chamber and is connected to the dew point environment chamber. The dew point tester is installed inside the dew point environmental chamber and is used to detect the environmental parameters inside the dew point environmental chamber. The dry gas intake air passage is connected to the dew point environment box and is used to provide dry gas into the dew point environment box; The moisture intake air passage is connected to the dew point environment box and is used to provide moisture into the dew point environment box. The control unit is located outside the dew point environment chamber and is communicatively connected to the dew point tester, the dry air intake path, and the wet air intake path. The controller adjusts the environmental parameters inside the dew point environmental chamber through the dew point tester, the dry air intake path, and the wet air intake path.

[0007] In another aspect, preferably, the present invention further includes a vacuum oil pump, which is disposed outside the dew point environment chamber and is connected to both the dew point environment chamber and the atmosphere replacement chamber. The vacuum oil pump is used to extract gas from the dew point environment chamber and the atmosphere replacement chamber.

[0008] In another aspect, preferably, the present invention further includes a first vacuum pump extraction path and a second vacuum pump extraction path. The vacuum oil pump is connected to the dew point environment chamber through the first vacuum pump extraction gas path, and the vacuum oil pump is connected to the atmosphere replacement chamber through the second vacuum pump extraction gas path. The vacuum oil pump, the first vacuum pump's air extraction path, and the second vacuum pump's air extraction path are communicatively connected to the control unit.

[0009] In another aspect, preferably, the present invention further includes an atmosphere replacement chamber gas path, wherein the atmosphere replacement chamber is connected to the dew point environment chamber through the atmosphere replacement chamber gas path.

[0010] In another aspect of this utility model, preferably, the atmosphere replacement chamber includes an inner door and an outer door. The atmosphere replacement chamber is configured as a fully enclosed box, with the outer door of the replacement chamber communicating with the external environment and the inner door of the replacement chamber communicating with the internal space of the dew point environment box.

[0011] In another aspect, preferably, the present invention further includes a pressure sensor, which is disposed inside the dew point environment chamber and is used to detect the air pressure inside the dew point environment chamber. The pressure sensor is communicatively connected to the control unit.

[0012] In another aspect, preferably, the present invention further includes a pressure relief gas path, which is connected to the dew point environment chamber and is communicatively connected to the control unit for discharging gas from the dew point environment chamber.

[0013] In another aspect, preferably, the present invention further includes a fan, which is disposed inside the dew point environment chamber and is used to mix the gas inside the dew point environment chamber.

[0014] In another aspect of this utility model, preferably, the dry gas inlet path, the wet gas inlet path, the pressure relief path, the first vacuum pump extraction path, the second vacuum pump extraction path, and the atmosphere replacement chamber path are all equipped with solenoid valves. The solenoid valves are all communicatively connected to the control unit, and the control unit adjusts the opening and closing degree of the corresponding path through the solenoid valves.

[0015] In another aspect of this utility model, preferably, the dew point environment box is configured as a fully sealed box, and one side of the dew point environment box is configured as a visible structure, the visible structure being provided with a glove interface for connecting operating gloves.

[0016] (III) Beneficial Effects The above-mentioned technical solution of this utility model has the following beneficial technical effects: This invention achieves real-time monitoring and precise control of humidity and dew point within a dew point environment chamber by arranging a dew point meter, a dry gas inlet path, and a wet gas inlet path within the chamber, and by intelligently adjusting each path via a controller. The dew point regulating chamber of this invention can establish an ultra-low dew point environment, meeting the needs of sample testing under low humidity or dry conditions. Simultaneously, it can automatically and dynamically adjust the dew point based on real-time measurement data, ensuring stable environmental parameters that can flexibly adapt to experimental requirements. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of one embodiment of the present utility model; Figure label: 1: Dew point environment chamber; 2: Atmosphere replacement chamber; 3: Dew point tester; 4: Pressure sensor; 5: Control unit; 6: Fan; 7: Vacuum oil pump; 8: Dry gas inlet air path; 9: Moist gas inlet air path; 10: Pressure relief air path; 11: First vacuum pump extraction air path; 12: Second vacuum pump extraction air path; 13: Atmosphere replacement chamber air path. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this utility model. Furthermore, descriptions of well-known structures and technologies are omitted in the following description to avoid unnecessarily obscuring the concept of this utility model.

[0019] The accompanying drawings show structural schematic diagrams according to embodiments of the present invention. These drawings are not drawn to scale, and some details have been enlarged for clarity, and some details may have been omitted. The shapes of the various regions and layers shown in the drawings, as well as their relative sizes and positional relationships, are merely exemplary and may deviate from reality due to manufacturing tolerances or technical limitations. Furthermore, those skilled in the art can design regions / layers with different shapes, sizes, and relative positions as needed.

[0020] Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0021] In the description of this utility model, it should be noted that the terms "first", "second" and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0022] Furthermore, the technical features involved in the different embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0023] The present invention will now be described in more detail with reference to the accompanying drawings. In the various drawings, the same elements are indicated by similar reference numerals. For clarity, the parts in the drawings are not drawn to scale.

[0024] Example 1 A dew point regulating box, Figure 1 A flowchart illustrating an embodiment of the present invention is shown, as follows: Figure 1 As shown, it includes: a dew point environment chamber 1, an atmosphere replacement chamber 2, a dew point tester 3, a control unit 5, a dry gas inlet air passage 8, and a wet gas inlet air passage 9; The dew point environment chamber 1 is a fully sealed chamber made of robust materials, effectively isolating it from external ambient air and ensuring the stability of internal humidity and dew point. It can also withstand the effects of internal gas flow or pressure changes, ensuring that environmental parameters remain constant during long-term experiments. The internal space is used to place the samples to be tested. Furthermore, one side of the dew point environment chamber 1 is designed as a visible structure, which can be made of transparent materials, such as high- and low-temperature resistant glass or transparent plastic, allowing operators to directly observe the samples and environmental conditions inside the chamber from the outside, and to judge the experimental progress or sample status. The visible structure is equipped with a glove interface for connecting operating gloves. The operating gloves can extend into the chamber, allowing operators to place, adjust, or perform experimental operations on samples without opening the chamber, thereby preventing outside air from entering the chamber and ensuring the stability of internal environmental parameters and the repeatability of the experiment. Specifically, in this embodiment, the front of the dew point environment chamber 1 is made of glass, sealed with a rubber ring and supplemented with special sealing grease, and has a glove interface. The operating gloves are sealed to the glove interface by the rubber ring, allowing hands to be extended into the glove box for operation.

[0025] The atmosphere replacement chamber 2 is located outside the dew point environment chamber 1 and is connected to the dew point environment chamber 1. It is used to buffer and replace or pre-treat the atmosphere within the dew point environment chamber 1. Further, in this embodiment, it also includes an atmosphere replacement chamber gas path 13, through which the atmosphere replacement chamber 2 and the dew point environment chamber 1 are connected. An electromagnetic valve is installed on the atmosphere replacement chamber gas path 13, and the replacement chamber valve is communicatively connected to a controller 5. The controller 5 adjusts the opening and closing degree of the atmosphere replacement chamber gas path 13 through the replacement chamber valve.

[0026] Furthermore, in this embodiment, the atmosphere replacement chamber 2 includes an inner door and an outer door. The atmosphere replacement chamber 2 is a fully enclosed enclosure. The outer door of the replacement chamber communicates with the external environment, while the inner door communicates with the internal space of the dew point environment chamber 1. Operators use this door to place or remove samples, tools, or auxiliary equipment into or from the replacement chamber, facilitating material transfer with the external environment. The inner door of the replacement chamber communicates with the internal space of the dew point environment chamber 1, ensuring a smooth transition when samples enter or exit the chamber, thus maintaining a stable internal environment and preventing direct entry of outside air that could cause fluctuations in dew point parameters. Both the inner and outer doors of the replacement chamber employ sealing designs, such as rubber sealing strips or elastic sealing rings, to ensure good sealing of the chamber when closed.

[0027] Items from outside air can be brought into the dew point environment chamber 1 through the atmosphere replacement chamber 2 for experiments or tests. The specific method is as follows: Initially, the atmosphere replacement chamber 2 is empty, and both the inner and outer doors are tightly closed. The outer door is opened from the outside, and the item is placed into the atmosphere replacement chamber 2. At this time, the inner door of the replacement chamber is tightly closed, so it will not affect the dew point condition inside the dew point environment chamber 1. After the item is placed in, the outer door of the replacement chamber is tightly closed. At this point, the atmosphere replacement chamber 2 becomes a small, sealed space containing high-dew-point air from outside. The atmosphere replacement chamber gas path 13, vacuum oil pump 7, and second vacuum pump evacuation gas path 12 are controlled by the controller 5 to perform a cycle of "vacuuming-filling the environment chamber with low-dew-point gas" three times. The purpose is to replace the air inside the chamber with inert gas, bringing its dew point level close to that of the dew point environment chamber 1. Once the atmosphere inside the atmosphere replacement chamber 2 meets the standard, the inner door of the replacement chamber is opened from the inside of the chamber, and the item is placed into the dew point environment chamber 1. Throughout the entire process, the atmosphere purity is minimally affected.

[0028] The dew point tester 3 is installed inside the dew point environment chamber 1 and is used to detect environmental parameters inside the dew point environment chamber 1, including humidity, temperature, etc., and feeds the measured data back to the control unit 5; the signal output response time of the dew point tester 3 is less than or equal to 1 second. The dry gas inlet passage 8 is connected to the dew point environment chamber 1 and is used to supply dry gas into the dew point environment chamber 1. In this embodiment, the dry gas is nitrogen or argon with a purity of 99.999% and a pressure of 0.3-0.5 MPa. When the dry gas inlet passage 8 continuously replenishes the dew point environment chamber 1 with gas, it can lower the dew point inside the chamber. The dry gas inlet passage 8 is equipped with a solenoid valve, which is a dry gas valve. The controller 5 adjusts the opening and closing degree of the dry gas inlet passage 8 through the dry gas valve.

[0029] The moisture intake air passage 9 is connected to the dew point environment chamber 1 and is used to supply moisture to the dew point environment chamber 1. The air source of the moisture intake air passage 8 is undried compressed air from an air compressor or compressed air gas tank, with a pressure of 0.3-0.5 MPa, used to supplement moisture to increase humidity or raise the dew point. The moisture intake air passage 9 is equipped with a solenoid valve, which is a moisture valve. The controller 5 adjusts the opening and closing degree of the moisture intake air passage 9 through the moisture valve.

[0030] The control unit 5 is located outside the dew point environment chamber 1. The control unit 5 is communicatively connected to the dew point tester 3, the dry gas inlet passage 8, and the wet gas inlet passage 9. The control unit 5 adjusts the environmental parameters inside the dew point environment chamber 1 through the dew point tester 3, the dry gas inlet passage 8, and the wet gas inlet passage 9. Through the precise adjustment of the control unit 4, the dew point environment can be quickly established and automatically dynamically adjusted, ensuring that the dew point inside the chamber changes stably within the required range. The dew point of nitrogen or argon gas source with a purity of 99.999% is ≤-90℃, and the dew point of undried compressed air is usually ≥-10℃. As dry and wet gases, they can adjust the dew point inside the dew point environment chamber from -80℃ to -20℃. To meet the control requirements of ultra-low dew points, the interior is under positive pressure.

[0031] Furthermore, in this embodiment, a vacuum oil pump 7, a first vacuum pump extraction air passage 11, and a second vacuum pump extraction air passage 12 are also included. The vacuum oil pump 7 is located outside the dew point environment chamber 1. The vacuum oil pump 7 is connected to the dew point environment chamber 1 through the first vacuum pump extraction gas passage 11, and is connected to the atmosphere replacement chamber 2 through the second vacuum pump extraction gas passage 12. The vacuum oil pump 7 is used to extract the gas in the dew point environment chamber 1 and the atmosphere replacement chamber 2, thereby quickly reducing the internal pressure and realizing gas pretreatment or accelerating the dry and wet gas regulation response.

[0032] The vacuum oil pump 7, the first vacuum pump extraction air path 11, and the second vacuum pump extraction air path 12 are communicatively connected to the control unit 5. The first vacuum pump extraction air path 11 includes a solenoid valve, serving as a first vacuum valve. The control unit 5 adjusts the on / off state of the first vacuum pump extraction air path 11 via the first vacuum valve. The second vacuum pump extraction air path 12 includes a solenoid valve, serving as a second vacuum valve. The control unit 5 adjusts the on / off state of the second vacuum pump extraction air path 12 via the second vacuum valve. The first vacuum pump extraction air path 11 connects to the internal space of the dew point environment chamber 1, evacuating the air inside the chamber to ensure a rapid establishment of a low dew point or low humidity environment. The second vacuum pump extraction air path 12 connects to the atmosphere replacement chamber 2, used to remove residual gas from the replacement chamber, preventing external air from interfering with the internal environment of the dew point environment chamber 1, and providing a buffer atmosphere for sample entry and exit.

[0033] Furthermore, in this embodiment, a pressure sensor 4 is also included. The pressure sensor 4 is disposed inside the dew point environment chamber 1 and is used to detect the air pressure inside the dew point environment chamber 1. The pressure sensor 4 is communicatively connected to the control unit 5.

[0034] It also includes a pressure relief gas path 10, which is connected to the dew point environment chamber 1 and communicates with the control unit 5. This path is used to discharge gas from the dew point environment chamber 1. The dew point and pressure inside the dew point environment chamber 1 are tested and fed back in real time. After receiving the feedback data, the control unit 5 controls the opening of the dry gas valve or the wet gas valve based on the difference between the actual measured dew point value and the set value. This controls whether the dew point inside the dew point environment chamber 1 becomes higher or lower, and maintains the pressure within a certain range. If the actual dew point inside the dew point environment chamber 1 is higher than the set dew point, the control unit 5 detects the test signal from the dew point tester 3 and controls the opening of the solenoid valve of the dry gas inlet gas path 8. Nitrogen or argon gas with a purity of 99.999% and a pressure of 0.3-0.5 MPa is continuously supplied to lower the dew point inside the chamber. Simultaneously, the chamber pressure increases, and the solenoid valve of the pressure relief gas path 10 opens, maintaining the internal pressure of the chamber within the set range during dry gas supply. If the actual dew point inside the dew point environment chamber 1 is lower than the set dew point, the solenoid valves of the moisture inlet air passage 9 and the pressure relief air passage 10 are opened to raise the internal dew point. Through the above process, the dew point inside the dew point environment chamber 1 can be dynamically adjusted between -80℃ and -20℃.

[0035] Furthermore, entering and exiting the operating gloves will cause pressure changes inside the dew point environment chamber 1. When the operating gloves are entered, the internal pressure increases. If the pressure sensor 4 detects that the pressure is greater than the set pressure range, the solenoid valve on the first vacuum pump extraction air passage 11 and the vacuum oil pump 7 will open. After the pressure drops to the set range, they will close again. When the operating gloves are removed, the internal pressure decreases. If it is lower than the set range, the solenoid valve on the dry air intake air passage 8 will open to replenish air and restore the pressure to the set pressure.

[0036] Furthermore, this embodiment also includes a fan 6, which is disposed inside the dew point environment chamber 1 and is used to mix the gas inside the dew point environment chamber 1. The fan speed is greater than or equal to 0.5 m / s. To ensure accurate and real-time dynamic control of the dew point inside the chamber, the data acquisition and feedback of the dew point need to be real-time, the internal atmosphere needs to be uniform overall, and there should be no difference in dew point at different locations. Therefore, the dew point tester needs to have a signal output response time of less than or equal to 1 second, and the fan needs to maintain a low wind speed inside to ensure that the gas inside the dew point environment chamber 1 is mixed as a whole.

[0037] This invention achieves real-time monitoring and precise control of humidity and dew point within a dew point environment chamber by arranging a dew point meter, a dry gas inlet path, and a wet gas inlet path within the chamber, and by intelligently adjusting each path via a controller. The dew point regulating chamber of this invention can establish an ultra-low dew point environment, meeting the needs of sample testing under low humidity or dry conditions. Simultaneously, it can automatically and dynamically adjust the dew point based on real-time measurement data, ensuring stable environmental parameters that can flexibly adapt to experimental requirements.

[0038] It should be understood that the specific embodiments described above are merely illustrative or explanatory of the principles of this utility model and do not constitute a limitation thereof. Therefore, any modifications, equivalent substitutions, improvements, etc., made without departing from the spirit and scope of this utility model should be included within its protection scope. Furthermore, the appended claims are intended to cover all variations and modifications falling within the scope and boundaries of the appended claims, or equivalent forms of such scope and boundaries.

[0039] The above description does not provide detailed explanations of the technical aspects of each layer's patterning and etching. However, those skilled in the art should understand that various methods existing in the prior art can be used to form layers and regions of the desired shape. Furthermore, to form the same structure, those skilled in the art can also design methods that are not entirely identical to those described above.

[0040] The present invention has been described above with reference to embodiments thereof. However, these embodiments are for illustrative purposes only and are not intended to limit the scope of the present invention. The scope of the present invention is defined by the appended claims and their equivalents. Various substitutions and modifications can be made by those skilled in the art without departing from the scope of the present invention, and all such substitutions and modifications should fall within the scope of the present invention.

[0041] Although the embodiments of the present invention have been described in detail, it should be understood that various changes, substitutions and modifications can be made to the embodiments of the present invention without departing from the spirit and scope of the present invention.

[0042] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A dew point regulating box, characterized in that, include: Dew point environment chamber (1), atmosphere replacement chamber (2), dew point tester (3), control unit (5), dry gas inlet air path (8) and wet gas inlet air path (9); The dew point environment chamber (1) is used to place the sample to be tested; The atmosphere replacement chamber (2) is located outside the dew point environment box (1) and is connected to the dew point environment box (1); The dew point tester (3) is installed inside the dew point environment chamber (1) and is used to detect the environmental parameters inside the dew point environment chamber (1); The dry gas inlet air passage (8) is connected to the dew point environment box (1) and is used to provide dry gas into the dew point environment box (1); The moisture intake air passage (9) is connected to the dew point environment box (1) and is used to provide moisture into the dew point environment box (1); The control unit (5) is located outside the dew point environment chamber (1), and the control unit (5) is communicatively connected to the dew point tester (3), the dry air intake passage (8), and the wet air intake passage (9). The controller (5) adjusts the environmental parameters inside the dew point environmental chamber (1) through the dew point tester (3), the dry air intake path (8), and the wet air intake path (9).

2. The dew point regulating box according to claim 1, characterized in that, It also includes a vacuum oil pump (7), which is located outside the dew point environment chamber (1). The vacuum oil pump (7) is connected to both the dew point environment chamber (1) and the atmosphere replacement chamber (2). The vacuum oil pump (7) is used to remove gas from the dew point environment chamber (1) and the atmosphere replacement chamber (2).

3. The dew point regulating box according to claim 2, characterized in that, It also includes the first vacuum pump extraction gas path (11) and the second vacuum pump extraction gas path (12); The vacuum oil pump (7) is connected to the dew point environment chamber (1) through the first vacuum pump extraction air passage (11), and the vacuum oil pump (7) is connected to the atmosphere replacement chamber (2) through the second vacuum pump extraction air passage (12). The vacuum oil pump (7), the first vacuum pump extraction air passage (11), and the second vacuum pump extraction air passage (12) are communicatively connected to the control unit (5).

4. The dew point regulating box according to claim 3, characterized in that, It also includes an atmosphere replacement chamber gas path (13), wherein the atmosphere replacement chamber (2) and the dew point environment box (1) are connected through the atmosphere replacement chamber gas path (13).

5. The dew point regulating box according to claim 1, characterized in that, The atmosphere replacement chamber (2) includes an inner door and an outer door. The atmosphere replacement chamber (2) is configured as a fully enclosed box. The outer door of the replacement chamber is connected to the external environment, and the inner door of the replacement chamber is connected to the internal space of the dew point environment box (1).

6. The dew point regulating box according to claim 1, characterized in that, It also includes a pressure sensor (4), which is located inside the dew point environment chamber (1) and is used to detect the air pressure inside the dew point environment chamber (1). The pressure sensor (4) is connected to the controller (5) in communication.

7. The dew point regulating box according to claim 4, characterized in that, It also includes a pressure relief gas path (10), which is connected to the dew point environment box (1) and is communicatively connected to the control unit (5) for discharging gas from the dew point environment box (1).

8. The dew point regulating box according to claim 1, characterized in that, It also includes a fan (6), which is located inside the dew point environment chamber (1) and is used to mix the gas inside the dew point environment chamber (1).

9. The dew point regulating box according to claim 7, characterized in that, The dry gas inlet passage (8), wet gas inlet passage (9), pressure relief passage (10), first vacuum pump extraction passage (11), second vacuum pump extraction passage (12), and atmosphere replacement chamber passage (13) are all equipped with solenoid valves. The solenoid valves are all connected in communication with the controller (5). The controller (5) adjusts the opening and closing degree of the corresponding gas passage through the solenoid valves.

10. The dew point regulating box according to claim 1, characterized in that, The dew point environment chamber (1) is configured as a fully sealed chamber, and one side of the dew point environment chamber (1) is configured as a visible structure. The visible structure is provided with a glove interface for connecting operating gloves.

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