A constant temperature and humidity container and a method for controlling temperature and humidity thereof

Abstract

The present application provides a constant temperature and humidity container and a temperature and humidity control method thereof, and relates to the technical field of temperature and humidity control. A constant temperature and humidity container includes a casing, wherein a power mechanism and a horizontally placed constant furnace are arranged in the casing, wherein the constant furnace includes an outer furnace body and an inner furnace body, wherein the inner furnace body is coaxially rotatably arranged in the outer furnace body, wherein an inner guide tube and an outer guide tube are coaxially arranged between the inner furnace body and the outer furnace body, wherein the outer guide tube, the inner guide tube and the inner furnace body divide the inner cavity of the outer furnace body into a coaxial detour channel, wherein the power mechanism drives the inner furnace body to rotate, so that a circulating airflow is formed in the detour channel inside the outer furnace body, so that the moisture can fully impact the objects on the storage plate, so that the heat in the entire cavity inside the outer furnace body is uniform, and heat imbalance is avoided.

Description

Technical Field

[0001] The present application relates to the technical field of temperature and humidity control, and in particular to a constant temperature and humidity container and a temperature and humidity control method thereof. Background Art

[0002] In the existing technology, constant temperature and humidity test chambers are mostly used to test the performance of materials under various environments (including high temperature, low temperature, high humidity, low humidity, etc.), as well as to test the heat resistance, cold resistance, dryness resistance and moisture resistance of various materials.

[0003] However, the existing constant temperature and humidity test chambers, whether it is the refrigeration system, heating system or humidification system, their input and output positions in the test chamber are fixed, that is, they will not change relative to the chamber, and the positions of the temperature sensor and humidity sensor in the chamber are also fixed. In this way, even if a large-flow gas circulation method is adopted in the chamber, there will be certain temperature and humidity differences in some parts due to the specific structure of the chamber, which will affect the uniformity of temperature and humidity in the chamber and increase the power consumption of the entire test chamber (the heat and moisture loss caused by the large-flow gas circulation and the energy consumption generated by the large-flow gas itself). Summary of the invention

[0004] The present application aims to solve at least one of the technical problems existing in the prior art. To this end, the present application proposes a constant temperature and humidity container, comprising a casing, wherein a steam generating device for providing moisture and a refrigeration system for cooling are arranged in the casing, a furnace door is hinged on the casing, a power mechanism and a horizontally placed constant furnace are arranged in the casing, and the constant furnace comprises an outer furnace body and an inner furnace body, the outer furnace body is fixedly connected to the casing, a moisture conduit and a drain pipe are connected to the bottom side of the outer furnace body, the inner furnace body is coaxially rotatably arranged in the outer furnace body, and the inner furnace body is driven by the power mechanism and rotates in the inner furnace body; a connecting tube is coaxially fixedly connected to one end of the outer furnace body, the connecting tube is adapted to the furnace door, and the inner diameter of the open end of the outer furnace body is smaller than the inner diameter of the connecting tube; an axial drainage pipe is coaxially arranged in the outer furnace body, one end of the axial drainage pipe passes through the end of the outer furnace body away from the open end, and the other end of the axial drainage pipe extends to the outer furnace body. At the open end of the furnace body, a plurality of sensors are spirally distributed on the axial discharge pipe; at least one placement plate is slidably inserted in the outer furnace body, the placement plate and the connecting tube are slidably matched, and the placement plate is located on the inner side of the inner furnace body; an inner guide tube and an outer guide tube are coaxially arranged between the inner furnace body and the outer furnace body from the inside to the outside, one end of the inner guide tube is fixedly connected to the open end of the outer furnace body, and the other end of the inner guide tube does not abut the outer furnace body, one end of the outer guide tube is fixedly connected to the closed end of the outer furnace body, and the other end of the outer guide tube does not abut the outer furnace body; the inner furnace body is rotatably connected to one side of the open end of the outer furnace body, and a plurality of radial guide blocks are evenly arranged circumferentially on its side wall, and a radial channel is formed between two adjacent radial guide blocks; the outer guide tube, the inner guide tube and the inner furnace body divide the inner cavity of the outer furnace body into coaxial detour channels.

[0005] Preferably, the power mechanism includes: a motor, a pulley assembly and a driving gear, the motor is fixedly connected to the inside of the casing; one end of the pulley assembly is keyed to the output shaft of the motor; the driving gear is arranged inside the outer furnace body, and is keyed to the pulley assembly after rotating through the outer furnace body through a shaft rod.

[0006] Preferably, a waterproof cylinder is coaxially fixedly connected to the inner side of the outer furnace body, and a heating module is arranged between the waterproof cylinder and the inner wall of the outer furnace body.

[0007] Preferably, at least two positioning bars are fixedly connected to the closed end of the outer furnace body, and the two positioning bars limit the placement plate.

[0008] Preferably, an annular baffle is coaxially arranged at one end of the outer furnace body away from the opening, and the annular baffle divides the inner cavity of the outer furnace body into two chambers. A plurality of axial through holes are evenly arranged circumferentially on the annular baffle, and the plurality of axial through holes are all located on the inner side of the waterproof cylinder and connect the two chambers of the outer furnace body; an annular mounting groove is arranged on the side of the annular baffle facing the axis, and the mounting groove is adapted to the inner furnace body.

[0009] Preferably, a bottom water accumulation portion is provided in the outer furnace body, the bottom water accumulation portion is located at the inner bottom of the transversely placed outer furnace body, and the moisture conduit and the drain pipe respectively penetrate the bottom water accumulation portion.

[0010] Preferably, a passive gear ring is fixedly sleeved on the side wall of the inner furnace body, and the passive gear ring is meshed with the active gear; a plurality of inner guide strips are evenly fixed circumferentially on the outer wall of the inner furnace body, and the plurality of inner guide strips are sealingly and slidingly matched with the inner guide tube, and the inner guide strips are spirally arranged.

[0011] Preferably, a middle guide strip is fixedly connected to the outer wall of the inner guide tube, the middle guide strip is spirally arranged, and the spiral directions of the middle guide strip and the inner guide strip are opposite, and the middle guide strip is sealingly abutted against the inner wall of the outer guide tube.

[0012] Preferably, an outer guide strip is fixedly connected to the outer wall of the outer guide tube, the outer guide strip is spirally arranged, and the spiral direction of the outer guide strip is opposite to the spiral direction of the middle guide strip, and the outer guide strip is sealingly abutted against the inner wall of the waterproof tube.

[0013] A constant temperature and humidity container of the present application has the following beneficial effects:

[0014] 1. The inner furnace body is driven to rotate by a power mechanism, so that a circulating airflow is formed in the circuitous channel inside the outer furnace body. By utilizing the circulation of the airflow, the moisture entering the outer furnace body can fully impact the objects on the storage plate when it finally enters the inner furnace body. The heat generated by the heating module can be carried by the airflow by utilizing the circulation of the airflow, so that the heat in the cavity inside the entire outer furnace body is uniform, avoiding heat imbalance.

[0015] 2. By utilizing the rotation of the inner furnace body, as well as the inner, middle and outer guide strips, a spiral airway is formed inside the outer furnace body, further improving the uniformity of temperature and humidity in the airflow;

[0016] 3. Use multiple sensors spirally distributed on the side wall of the axial discharge pipe to monitor the temperature and humidity of the airflow that finally passes through the axis of the outer furnace body, so as to prevent the sensor from being directly impacted by steam and heat, and to be in the inner furnace body at the same time as the placement plate, so as to improve the monitoring results of the temperature and humidity of the objects on the placement plate;

[0017] 4. The airflow formed by the rotation is used to form evenly distributed heat and humidity in the inner cavity of the outer furnace body, thereby reducing the energy consumption caused by the use of large-flow gas circulation and reducing the energy loss in the outer furnace body.

[0018] On the other hand, the present application further provides a method for controlling temperature and humidity of a constant temperature and humidity container, comprising the following steps:

[0019] S1: initial temperature and humidity control, using the steam generating device to transport steam to the interior of the outer furnace body through the moisture conduit, while using the heating module to increase the temperature inside the outer furnace body, and using the refrigeration system to control the temperature and humidity inside the outer furnace body;

[0020] S2: homogenizing the cavity, using the power mechanism to drive the inner furnace body to rotate, so that the circuitous channel inside the outer furnace body forms a circulating airflow, and the circulating flow of the airflow is used to make the moisture entering the outer furnace body finally enter the inner side of the inner furnace body and fully impact the objects on the storage plate, and the circulating flow of the airflow is used to make the heat in the cavity inside the entire outer furnace body uniform, avoiding heat imbalance;

[0021] S3: The temperature and humidity in the cavity are rapidly stabilized, and a spiral airway is formed inside the outer furnace body by the rotation of the inner furnace body, as well as the inner, middle and outer guide strips, to further promote uniformity of temperature and humidity in the airflow;

[0022] S4: Improving accuracy, using the multiple sensors spirally distributed on the side wall of the axial discharge pipe to monitor the temperature and humidity of the airflow that finally passes through the axis of the outer furnace body, so as to prevent the sensor from being directly impacted by steam and heat, and the sensor and the placement plate are in the inner furnace body at the same time, so as to improve the monitoring results of the temperature and humidity of the object on the placement plate;

[0023] S5: Temperature and humidity correction. The axial discharge pipe can be used to discharge the airflow passing through the inner furnace body. The steam generating device and the refrigeration system can be used to correct the humidity. The heating module and the refrigeration system can be used to correct the temperature.

[0024] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions of the implementation methods of the present application, the drawings required for use in the implementation methods will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0026] Figure 1 is a schematic diagram of the overall structure of a constant temperature and humidity container according to an embodiment of the present application;

[0027] Figure 2 is a partial structural schematic diagram of a constant temperature and humidity container according to an embodiment of the present application;

[0028] Figure 3 It is a structural schematic diagram of a power mechanism according to an embodiment of the present application and a partial structural schematic diagram of a constant furnace;

[0029] Figure 4 is a schematic diagram of the structure of the power mechanism according to an embodiment of the present application and a schematic diagram of the internal structure of a constant furnace;

[0030] Figure 5 is a structural exploded diagram of a constant furnace according to an embodiment of the present application;

[0031] Figure 6 is a cross-sectional view of a constant furnace according to an embodiment of the present application;

[0032] Figure 7 is a partial structural schematic diagram of an outer furnace body and an axial discharge pipe according to an embodiment of the present application;

[0033] Figure 8 According to the embodiment of the present application Figure 7 A is an enlarged schematic diagram;

[0034] Fig. 9 is a schematic structural diagram of an axial drainage tube according to an embodiment of the present application;

[0035] Fig.10 is a side view of a partial structure of an axial drainage pipe according to an embodiment of the present application;

[0036] Fig.11 is a schematic diagram of the internal structure of a constant furnace according to an embodiment of the present application;

[0037] Fig.12 According to the embodiment of the present application Fig.11 A magnified schematic diagram of B;

[0038] Fig.13is a schematic diagram of the position of a flow mixing mechanism according to an embodiment of the present application;

[0039] Fig.14 is a structural schematic diagram of a flow mixing mechanism according to an embodiment of the present application;

[0040] Fig.15 According to the embodiment of the present application Fig.14 A magnified schematic diagram of middle C;

[0041] Fig.16 Schematic diagram of the distribution of the inner cavity spoiler according to the embodiment of the present application Figure 1 ;

[0042] Fig.17 Schematic diagram of the distribution of the inner cavity spoiler according to the embodiment of the present application Figure 2 ;

[0043] Fig.18 According to the embodiment of the present application Fig.16 A magnified schematic diagram of D in the middle;

[0044] Fig.19 It is a schematic diagram of the circulation direction of airflow according to an embodiment of the present application.

[0045] Icons: 1. Casing; 11. Furnace door; 2. Power mechanism; 21. Motor; 22. Pulley assembly; 23. Driving gear; 3. Constant furnace; 31. External furnace body; 311. Waterproof cylinder; 312. Heating module; 313. Moisture duct; 314. Drain pipe; 315. Positioning strip; 316. Annular baffle; 317. Axial through hole; 318. Mounting groove; 319. Bottom water accumulation part; 32. Connecting cylinder; 321. Guide groove; 33. Axial drainage pipe; 331. Axial rod; 332. Sensor; 333. Excretion through hole; 34. Inner furnace body; 341. Passive gear ring; 342. Inner guide strip; 343. Radial guide block; 344. Inner concave arc surface; 35. Storage plate; 36. Inner guide tube; 361. Middle guide strip; 37. Outer guide tube; 371. Outer guide strip; 4. Flow mixing mechanism; 41. Axial flow mixing block; 411. Axial flow mixing hole; 42. Radial flow mixing block; 421. Embedded groove; 422. Radial flow mixing hole; 5. Inner cavity spoiler block. DETAILED DESCRIPTION

[0046] In order to make the purpose, technical solutions and advantages of the implementation methods of this application clearer, the technical solutions in the implementation methods of this application will be clearly and completely described below in conjunction with the drawings in the implementation methods of this application. Obviously, the described implementation methods are part of the implementation methods of this application, not all of the implementation methods. Based on the implementation methods in this application, all other implementation methods obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0047] like Figure 1-Figure 19 As shown, a constant temperature and humidity container according to an embodiment of the present application includes a casing 1, in which a steam generating device for providing moisture and a refrigeration system for cooling are arranged. It should be noted that the steam generating device and the refrigeration system are not shown in the diagram of the present application, and both can be equivalently replaced by related equipment in the prior art. The technologies required for steam generation and refrigeration in the prior art are already very mature and will not be elaborated here.

[0048] Specifically, Figure 1-Figure 4 As shown, a furnace door 11 is hinged on the casing 1, and a power mechanism 2 and a horizontally placed constant furnace 3 are arranged in the casing 1. The constant furnace 3 includes an outer furnace body 31 and an inner furnace body 34. The outer furnace body 31 is fixedly connected to the casing 1, and the bottom side of the outer furnace body 31 is connected with a moisture duct 313 and a drain pipe 314. It should be noted that in the specific embodiment of the present application, the moisture duct 313 is communicated with the steam generating device to realize the transportation of steam, and the drain pipe 314 is communicated with an external water storage device or a steam generating device to facilitate the discharge of condensed water generated inside the outer furnace body 31.

[0049] like Figure 3 and Figure 4 As shown, the inner furnace body 34 is coaxially rotatably disposed in the outer furnace body 31 , and the inner furnace body 34 is driven by the power mechanism 2 and rotates in the inner furnace body 34 to realize the rotation of the inner furnace body 34 in the outer furnace body 31 .

[0050] like Figure 4 As shown, a connecting tube 32 is coaxially fixedly connected to an open end of the outer furnace body 31, and the connecting tube 32 is adapted to the furnace door 11. The inner diameter of the open end of the outer furnace body 31 is smaller than the inner diameter of the connecting tube 32, so that the inner furnace body 34 can rotate in the outer furnace body 31 without being disturbed by the connecting tube 32. Specifically, the inner furnace body 34 does not extend to the inside of the connecting tube 32. In this way, the outer furnace body 31 can be sealed in cooperation with the furnace door 11, and the normal rotation of the inner furnace body 34 will not be affected by the closing of the furnace door 11.

[0051] It should be noted that if Figure 4 and Figure 7 As shown, at least one guide groove 321 is axially arranged on the side wall of the connecting tube 32, and the guide groove 321 is L-shaped.

[0052] like Figure 3-Figure 7 As shown, an axial drainage pipe 33 is coaxially arranged in the outer furnace body 31, one end of the axial drainage pipe 33 passes through the end of the outer furnace body 31 away from the open end, and the other end of the axial drainage pipe 33 extends to the open end of the outer furnace body 31. A plurality of sensors 332 are spirally distributed on the axial drainage pipe 33, such as Fig. 9 and Fig.10As shown, the spiral distribution of multiple sensors 332 can enhance the monitoring of the temperature and humidity of the surrounding area. The specific sensors 332 are selected from temperature sensors and humidity sensors according to actual needs to achieve real-time monitoring of temperature and humidity.

[0053] like Figure 2 , Figure 3 , Figure 5 and Figure 6 As shown, at least one storage plate 35 is slidably inserted into the outer furnace body 31, and the storage plate 35 and the connecting tube 32 are slidably matched. The storage plate 35 is located on the inner side of the inner furnace body 34. It should be noted that in the specific embodiment of the present application, the head and tail ends of the storage plate 35 can be hollowed out to facilitate the circulation of airflow in the embodiment of the present application, and the outward end of the storage plate 35 is adapted to the L-shaped guide groove 321 to form an axial limit, which is convenient for the installation of the storage plate 35.

[0054] like Figure 4-Figure 6 As shown, an inner guide tube 36 and an outer guide tube 37 are coaxially arranged between the inner furnace body 34 and the outer furnace body 31 from the inside to the outside, one end of the inner guide tube 36 is fixedly connected to the open end of the outer furnace body 31, and the other end of the inner guide tube 36 does not abut the outer furnace body 31, one end of the outer guide tube 37 is fixedly connected to the closed end of the outer furnace body 31, and the other end of the outer guide tube 37 does not abut the outer furnace body 31; the inner furnace body 34 is rotatably connected to one side of the open end of the outer furnace body 31, and a plurality of radial guide blocks 343 are evenly arranged circumferentially on its side wall, and a radial channel is formed between two adjacent radial guide blocks 343; the outer guide tube 37, the inner guide tube 36 and the inner furnace body 34 divide the inner cavity of the outer furnace body 31 into a coaxial circuitous channel.

[0055] It should be noted that in the specific embodiments of the present application, Fig.12 As shown, the radial guide block 343 is symmetrically provided with a concave arc surface 344 on one side facing the axis. In this way, it can be understood that when the inner furnace body 34 rotates, the concave arc surface 344 on the radial guide block 343 will disturb the airflow passing therethrough to promote further uniform mixing of the heat and moisture carried in the airflow.

[0056] In addition, a constant temperature and humidity container according to an embodiment of the present application also has the following additional technical features:

[0057] Specifically, Figure 3 and Figure 4As shown, the power mechanism 2 includes: a motor 21, a pulley assembly 22 and a driving gear 23. The motor 21 is fixed to the inside of the casing 1; one end of the pulley assembly 22 is keyed to the output shaft of the motor 21; the driving gear 23 is arranged on the inner side of the outer furnace body 31, and is keyed to the pulley assembly 22 after being rotated through the outer furnace body 31 by a shaft, so that the motor 21 drives the driving gear 23 to rotate through the pulley assembly 22.

[0058] like Figure 3 , Figure 4 , Figure 6-Figure 8 and Fig.11 As shown, a waterproof cylinder 311 is coaxially fixed to the inner side of the outer furnace body 31, and a heating module 312 is arranged between the waterproof cylinder 311 and the inner wall of the outer furnace body 31. The heating module 312 is used to increase the temperature of the inner cavity of the outer furnace body 31. Specifically, Figure 7 and Fig.11 As shown, the waterproof tube 311 is not arranged in a complete ring shape inside the outer furnace body 31, but in an incomplete ring shape similar to an "Ω" shape. The waterproof tube 311 in this application only serves to protect the heating module 312 to prevent moisture in the steam from damaging the heating module 312. The waterproof tube 311 is preferably made of a light and thin heat-conductive material to avoid large losses when the heat of the heating module 312 is transferred to the inner side of the outer furnace body 31.

[0059] like Figure 6 and Figure 7 As shown, at least two positioning bars 315 are fixedly connected to the closed end of the outer furnace body 31 . The two positioning bars 315 limit the placement plate 35 , and cooperate with the guide grooves 321 to fix the placement plate 35 in the outer furnace body 31 .

[0060] like Figure 7 and Figure 8 As shown, an annular baffle 316 is coaxially arranged at one end of the outer furnace body 31 away from the opening, and the annular baffle 316 divides the inner cavity of the outer furnace body 31 into two chambers. A plurality of axial through holes 317 are evenly arranged circumferentially on the annular baffle 316, and the plurality of axial through holes 317 are all located on the inner side of the waterproof cylinder 311 and connect the two chambers of the outer furnace body 31. It should be noted that the axial through holes 317 are connected to the chamber between the waterproof cylinder 311 and the outer guide cylinder 37; an annular mounting groove 318 is arranged on the side of the annular baffle 316 facing the axis, and the mounting groove 318 is adapted to the inner furnace body 34; it can be understood that the inner furnace body 34 and the mounting groove 318 are slidably matched, so that the inner cavity of the inner furnace body 34 and the cavity on the other side of the annular baffle 316 are connected at this time, and then as shown in FIG. Fig.19 As shown, a cyclical circuitous channel will be formed at this time.

[0061] It should be noted that if Figure 7As shown, a bottom water accumulation portion 319 is provided in the outer furnace body 31, and the bottom water accumulation portion 319 is located at the inner bottom of the horizontally placed outer furnace body 31, and the moisture duct 313 and the drain pipe 314 respectively penetrate the bottom water accumulation portion 319, so that the drain pipe 314 can discharge the condensed water gathered in the bottom water accumulation portion 319.

[0062] like Figure 5 and Fig.11 As shown, a passive gear ring 341 is fixedly sleeved on the side wall of the inner furnace body 34, and the passive gear ring 341 is meshed with the driving gear 23, so that the motor 21 can drive the inner furnace body 34 to rotate; a plurality of inner guide strips 342 are evenly fixedly connected to the outer wall of the inner furnace body 34 in a circumferential direction, and the plurality of inner guide strips 342 and the inner guide tube 36 are sealingly and slidably matched, and the inner guide strips 342 are spirally arranged.

[0063] like Figure 5 , Figure 6 and Fig.11 As shown, a middle guide strip 361 is fixedly connected to the outer wall of the inner guide tube 36 , the middle guide strip 361 is spirally arranged, and the spiral directions of the middle guide strip 361 and the inner guide strip 342 are opposite, and the middle guide strip 361 and the inner wall of the outer guide tube 37 are sealed and abutted.

[0064] Among them, an outer layer guide strip 371 is fixedly connected to the outer wall of the outer guide tube 37. The outer layer guide strip 371 is spirally arranged, and the spiral direction of the outer layer guide strip 371 is opposite to the spiral direction of the middle layer guide strip 361. The outer layer guide strip 371 and the inner wall of the waterproof tube 311 are sealed and abutted.

[0065] The following describes the use process of a constant temperature and humidity container according to an embodiment of the present application with reference to the accompanying drawings:

[0066] When in use, the steam generating device is used to transport steam to the outer furnace body 31 through the moisture conduit 313, and the heating module 312 is used to increase the temperature inside the outer furnace body 31, and the refrigeration system is used to control the temperature and humidity inside the outer furnace body 31. In this process, the motor 21 is started, and the passive gear ring 341 is driven to rotate through the pulley assembly 22 and the driving gear 23, and one end of the inner furnace body 34 rotates in the mounting groove 318 on the annular baffle 316, and the other end rotates in the open end of the outer furnace body 31. The passive gear ring 341 is fixedly sleeved on the side wall of the inner furnace body 34, so that the inner furnace body 34 is driven by the motor 21. 1 is driven to rotate, and when it rotates, it will drive the multiple spiral inner layer guide strips 342 evenly arranged on the side wall to rotate together, so that an axially conveying airflow will be formed between the inner furnace body 34 and the inner guide tube 36, and the entire outer furnace body 31 forms a complete circulating detour channel through the chamber separated by the inner furnace body 34, the inner guide tube 36, the outer guide tube 37, the annular baffle 316 and the axial through hole 317 on the annular baffle 316. In this way, when the axially conveying airflow is formed between the inner furnace body 34 and the inner guide tube 36, a continuous airflow will be formed in the entire connected and circulating detour channel, such as Fig.19As shown, under the action of the circulating airflow, the steam transported in the wet gas duct 313 will be carried by the flow of the airflow. During the circulation process, the steam will pass through the channel between the inner guide tube 36 and the outer guide tube 37 one by one. The airflow here will be changed in direction by the spirally arranged middle guide strip 361 to form a spiral channel, and then pass through the channel between the inner furnace body 34 and the inner guide tube 36. The airflow here will be further changed in direction by the spirally arranged inner guide strip 342. Then the airflow is transported to the storage plate 35 in the inner furnace body 34 through two adjacent radial guide blocks 343, and impacts the objects on the storage plate 35. After the airflow flows out of the inner furnace body 34 axially, it forms a radial escape in the other side space separated by the annular baffle 316, and flows from the axial through hole 317 to the channel between the waterproof tube 311 and the outer guide tube 37. During this period, the airflow is further changed in direction by the outer guide strip 371, and the heat generated by the heating module 312 is carried, and finally the heat generated by the heating module 312 is carried out again. Flowing to the channel between the inner guide tube 36 and the outer guide tube 37, an endless cycle is formed. During the circulation process, the moisture in the steam and the heat carried by the airflow from the heating module 312 will continue to mix, so that the heat and moisture in the airflow are uniform and evenly distributed throughout the outer furnace body 31 as the airflow flows. This design allows the humidity and temperature in the entire outer furnace body 31 to be fully and evenly filled, avoiding temperature and humidity dead corners, while avoiding the use of high-power airflow to cause a large loss of moisture and temperature, reducing the energy consumption of the entire device, and further improving the efficiency of the temperature and humidity inside the entire outer furnace body 31 to reach the established goals. In the embodiment of the present application, the sensor 332 for monitoring temperature and humidity is spirally distributed at the axis of the outer furnace body 31. By utilizing the circulation of airflow, the sensor 332 only needs to monitor the axis to obtain the temperature and humidity changes in the entire outer furnace body 31, avoiding the sensor 332 from being directly disturbed by heat and moisture, and at the same time improving the accuracy of the monitoring data.

[0067] It should be noted that, in a specific embodiment, a plurality of drainage holes 333 are evenly arranged circumferentially on the axial drainage pipe 33, and the plurality of drainage holes 333 are respectively located on the side wall and end face of the axial drainage pipe 33, so that when the airflow rushes to the axial drainage pipe 33, an umbrella-shaped arc airway is formed as much as possible (rushing from the inner diameter of the inner furnace body 34 whose inner diameter is much larger than the outer diameter of the axial drainage pipe 33 to the circumferentially evenly arranged drainage holes 333). The axial drainage pipe 33 can be externally connected to a control device to realize the on and off of the axial drainage pipe 33, and then realize the on and off control of the internal airflow rushing to the outer furnace body 31. In conjunction with the steam generating device and the refrigeration system, the temperature and humidity in the outer furnace body 31 can be fine-tuned.

[0068] In the related art, when the airflow passes between two adjacent radial guide blocks 343 and is transported to the placement plate 35 in the inner furnace body 34, the airflow enters the inner furnace body 34 along the radial direction of the inner furnace body 34. Therefore, when the airflow finally flows axially in the inner furnace body 34, its axial uniformity cannot be guaranteed, and under the dividing effect of the placement plate 35, the airflow will flow in a single direction, so that the objects on the placement plate 35 may be impacted by the unbalanced airflow, affecting the test data.

[0069] According to some embodiments of the present application, Figure 13-Figure 15 As shown, a mixing mechanism 4 is embedded in the position where the radial channel is provided in the inner furnace body 34. The mixing mechanism 4 includes a plurality of axial mixing blocks 41 and a plurality of radial mixing blocks 42 arranged at intervals. The axial mixing blocks 41 and the radial mixing blocks 42 are arranged in a concave shape.

[0070] The recessed portion of the axial flow mixing block 41 is evenly provided with a plurality of axial flow mixing holes 411 , and the recessed portion of the radial flow mixing block 42 is evenly provided with a plurality of radial flow mixing holes 422 .

[0071] By providing the axial mixing holes 411 on the axial mixing block 41 and the radial mixing holes 422 on the radial mixing block 42, the airflow entering the inner furnace body 34 is further disturbed sufficiently, so that the heat and moisture carried in the airflow are fully mixed, and the airflow inside the inner furnace body 34 forms a certain turbulence, thereby avoiding the airflow inside the inner furnace body 34 having a single direction and incomplete impact on the objects on the placement plate 35.

[0072] Furthermore, the plurality of axial mixing blocks 41 and the plurality of radial mixing blocks 42 form a ring.

[0073] Furthermore, the axial flow mixing hole 411 is located on a side wall of the axial flow mixing block 41 on one side of the recessed portion.

[0074] The radial mixing holes 422 are located at the bottom of the recessed portion of the radial mixing block 42 .

[0075] Furthermore, two side walls of the radial mixing block 42 are symmetrically provided with embedded grooves 421 adapted to the radial guide block 343 .

[0076] Therefore, during use, the airflow passes between two adjacent radial guide blocks 343, rushes to the interior of the multiple concave axial mixing blocks 41 and radial mixing blocks 42, and passes through the multiple axial mixing holes 411 and the multiple radial mixing holes 422 on the two, and then rushes to the interior of the inner furnace body 34, so that the airflow forms two directions, axial and radial. The rotating inner furnace body 34 will further fully disturb the airflow entering the inner furnace body 34, so that the heat and moisture carried in the airflow are fully mixed, and the airflow inside the inner furnace body 34 forms a certain turbulence, so as to avoid the airflow flowing in a single direction inside the inner furnace body 34 and incomplete impact on the objects on the storage plate 35.

[0077] In the related art, when the airflow impacts the object on the placement plate 35, the object will form a certain obstruction to the airflow, and in the specific embodiment of the present application, the placement plate 35 is preferably placed parallel to the axis of the constant furnace 3. In this way, behind the airflow direction, the object may be impacted by the airflow and a dead angle may occur, that is, the airflow forms a certain detour after being obstructed by the object, causing the object to be locally eroded by less heat and humidity than the windward side.

[0078] According to some embodiments of the present application, Figure 16-18 As shown, a plurality of inner cavity spoiler blocks 5 are evenly distributed on the inner wall of the inner furnace body 34 . The plurality of inner cavity spoiler blocks 5 are distributed in a spiral shape, and a distance is left between two adjacent inner cavity spoiler blocks 5 .

[0079] Furthermore, the inner cavity spoiler block 5 is arranged in an arc shape, and the arc shape is adapted to the spiral distribution of the plurality of inner cavity spoiler blocks 5, thereby enhancing the drainage effect of the inner cavity spoiler block 5 on the airflow.

[0080] Thus, the plurality of inner cavity spoiler blocks 5 distributed in spirals can further guide the airflow disturbed by the object, thereby reducing the detour phenomenon caused by the airflow disturbed by the object. Fig.17 As shown, multiple inner cavity spoiler blocks 5 form a uniform axial channel between the intervals in the axial direction. The axial channel and the inner cavity spoiler blocks 5 themselves guide the airflow, so that the airflow forms turbulence inside the entire inner furnace body 34, reducing the interference of objects on the airflow and reducing the formation of dead corners in the local area of ​​the object due to the detour of the airflow.

[0081] On the other hand, the embodiment of the present application further provides a method for controlling temperature and humidity of a constant temperature and humidity container, comprising the following steps:

[0082] S1: Initial temperature and humidity control, using the steam generating device to transport steam to the outer furnace body 31 through the moisture conduit 313, while using the heating module 312 to increase the temperature inside the outer furnace body 31, and using the refrigeration system to control the temperature and humidity inside the outer furnace body 31;

[0083] S2: Uniformity in the cavity: the power mechanism 2 is used to drive the inner furnace body 34 to rotate, so that a circulating airflow is formed in the circuitous channel inside the outer furnace body 31. By utilizing the circulating flow of the airflow, the moisture entering the outer furnace body 31 can fully impact the objects on the storage plate 35 when it finally enters the inner side of the inner furnace body 34. By utilizing the circulating flow of the airflow, the heat in the entire cavity inside the outer furnace body 31 is uniform, avoiding heat imbalance.

[0084] S3: The temperature and humidity in the cavity are rapidly stabilized. By utilizing the rotation of the inner furnace body 34, the inner guide strip 342, the middle guide strip 361 and the outer guide strip 371, a spiral airway is formed inside the outer furnace body 31, further promoting the uniformity of temperature and humidity in the airflow.

[0085] S4: Improving accuracy, using multiple sensors 332 spirally distributed on the side wall of the axial discharge pipe 33 to monitor the temperature and humidity of the airflow that finally passes through the axial center of the outer furnace body 31, to prevent the sensor 332 from being directly impacted by steam and heat, and to improve the monitoring results of the temperature and humidity of the objects on the placement plate 35 by being in the inner furnace body 34 at the same time as the placement plate 35;

[0086] S5: Temperature and humidity correction. The airflow passing through the inner furnace body 34 can be discharged by the axial discharge pipe 33. The humidity can be corrected by cooperating with the steam generating device and the refrigeration system. The temperature can be corrected by cooperating with the heating module 312 and the refrigeration system.

[0087] It should be noted that the specific models and specifications of the motor 21, pulley assembly 22, driving gear 23, storage plate 35, heating module 312 and sensor 332 need to be selected and determined according to the actual specifications of the device, etc. The specific selection and calculation method adopts the existing technology in this field, so it will not be described in detail.

[0088] The above are only preferred implementations of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A constant temperature and humidity container, comprising a housing (1), wherein a steam generating device for providing moisture and a refrigeration system for cooling are arranged in the housing (1), a furnace door (11) is hingedly connected to the housing (1), a power mechanism (2) and a horizontally placed constant temperature furnace (3) are arranged in the housing (1), and the characteristics are: The constant furnace (3) comprises an outer furnace body (31) and an inner furnace body (34), the outer furnace body (31) being fixedly connected to the casing (1), the bottom side of the outer furnace body (31) being connected to a moisture conduit (313) and a drain pipe (314), the inner furnace body (34) being coaxially rotatably arranged in the outer furnace body (31), and the inner furnace body (34) being driven by the power mechanism (2) and rotating in the inner furnace body (34); A connecting tube (32) is coaxially fixedly connected to one open end of the outer furnace body (31), the connecting tube (32) is adapted to the furnace door (11), and the inner diameter of the open end of the outer furnace body (31) is smaller than the inner diameter of the connecting tube (32); An axial drainage pipe (33) is coaxially arranged inside the outer furnace body (31), one end of the axial drainage pipe (33) passes through an end of the outer furnace body (31) away from the open end, and the other end of the axial drainage pipe (33) extends to the open end of the outer furnace body (31), and a plurality of sensors (332) are spirally distributed on the axial drainage pipe (33); At least one storage plate (35) is slidably inserted into the outer furnace body (31), the storage plate (35) and the connecting tube (32) are slidably matched, and the storage plate (35) is located on the inner side of the inner furnace body (34); An inner flow guide tube (36) and an outer flow guide tube (37) are coaxially arranged in sequence from the inside to the outside between the inner furnace body (34) and the outer furnace body (31); one end of the inner flow guide tube (36) is fixedly connected to the open end of the outer furnace body (31), and the other end of the inner flow guide tube (36) does not abut against the outer furnace body (31); one end of the outer flow guide tube (37) is fixedly connected to the closed end of the outer furnace body (31), and the other end of the outer flow guide tube (37) does not abut against the outer furnace body (31); The inner furnace body (34) is rotatably connected to one side of the open end of the outer furnace body (31), and a plurality of radial guide blocks (343) are evenly arranged circumferentially on the side wall thereof, and a radial channel is formed between two adjacent radial guide blocks (343); The outer flow guide tube (37), the inner flow guide tube (36) and the inner furnace body (34) divide the inner cavity of the outer furnace body (31) into coaxial circuitous channels; A flow mixing mechanism (4) is embedded in a position where the inner furnace body (34) is provided with a radial channel, the flow mixing mechanism (4) comprising a plurality of axial flow mixing blocks (41) and a plurality of radial flow mixing blocks (42) arranged at intervals, the axial flow mixing blocks (41) and the radial flow mixing blocks (42) being arranged in a concave shape; The recessed portion of the axial flow mixing block (41) is evenly provided with a plurality of axial flow mixing holes (411), and the recessed portion of the radial flow mixing block (42) is evenly provided with a plurality of radial flow mixing holes (422); The plurality of axial flow mixing blocks (41) and the plurality of radial flow mixing blocks (42) form a ring; The axial flow mixing hole (411) is located on a side wall of a recessed portion of the axial flow mixing block (41); The radial mixing hole (422) is located at the bottom of the recessed portion of the radial mixing block (42); Embedding grooves (421) adapted to the radial flow guide blocks (343) are symmetrically arranged on two side walls of the radial flow mixing block (42); The radial guide block (343) is symmetrically provided with an inwardly concave arc surface (344) on one side facing the axis; A plurality of inner cavity spoiler blocks (5) are evenly distributed on the inner wall of the inner furnace body (34), the plurality of inner cavity spoiler blocks (5) are distributed in a spiral shape, and a distance is left between two adjacent inner cavity spoiler blocks (5); The inner cavity spoiler block (5) is arranged in an arc shape, and the arc shape is adapted to the spiral shape in which the plurality of inner cavity spoiler blocks (5) are distributed.

2. A constant temperature and humidity container as claimed in claim 1, characterized in that: The power mechanism (2) comprises: A motor (21), the motor (21) being fixedly connected to the inside of the housing (1); A pulley assembly (22), one end of the pulley assembly (22) being key-connected to the output shaft of the motor (21); A driving gear (23), wherein the driving gear (23) is arranged on the inner side of the outer furnace body (31), and is key-connected to the pulley assembly (22) after being rotated through the outer furnace body (31) by a shaft rod.

3. A constant temperature and humidity container as claimed in claim 2, characterized in that: A waterproof cylinder (311) is coaxially fixedly connected to the inner side of the outer furnace body (31), and a heating module (312) is provided between the waterproof cylinder (311) and the inner wall of the outer furnace body (31).

4. A constant temperature and humidity container as claimed in claim 1, characterized in that: At least two positioning bars (315) are fixedly connected to the closed end of the outer furnace body (31), and the two positioning bars (315) limit the placement plate (35).

5. A constant temperature and humidity container as claimed in claim 3, characterized in that: An annular baffle (316) is coaxially arranged at one end of the outer furnace body (31) away from the opening, the annular baffle (316) divides the inner cavity of the outer furnace body (31) into two chambers, and a plurality of axial through holes (317) are evenly arranged circumferentially on the annular baffle (316), the plurality of axial through holes (317) are all located on the inner side of the waterproof cylinder (311) and communicate with the two chambers of the outer furnace body (31); An annular mounting groove (318) is provided on one side of the annular baffle (316) facing the axis, and the mounting groove (318) is adapted to fit the inner furnace body (34).

6. A constant temperature and humidity container as claimed in claim 1, characterized in that: A bottom water accumulation portion (319) is provided in the outer furnace body (31), and the bottom water accumulation portion (319) is located at the inner bottom of the outer furnace body (31) placed horizontally, and the moisture conduit (313) and the drainage pipe (314) respectively penetrate the bottom water accumulation portion (319).

7. A constant temperature and humidity container as claimed in claim 3, characterized in that: A passive gear ring (341) is fixedly sleeved on the side wall of the inner furnace body (34), and the passive gear ring (341) is meshed with the driving gear (23); A plurality of inner guide strips (342) are evenly fixedly connected to the outer wall of the inner furnace body (34) in a circumferential direction. The plurality of inner guide strips (342) and the inner guide tube (36) are in sealing and sliding cooperation. The inner guide strips (342) are arranged in a spiral shape.

8. A constant temperature and humidity container as claimed in claim 7, characterized in that: A middle guide strip (361) is fixedly connected to the outer wall of the inner guide tube (36); the middle guide strip (361) is arranged in a spiral shape, and the spiral directions of the middle guide strip (361) and the inner guide strip (342) are opposite; the middle guide strip (361) and the inner wall of the outer guide tube (37) are in sealing contact.

9. A constant temperature and humidity container as claimed in claim 8, characterized in that: An outer layer guide strip (371) is fixedly connected to the outer wall of the outer guide tube (37); the outer layer guide strip (371) is arranged in a spiral shape, and the spiral direction of the outer layer guide strip (371) is opposite to the spiral direction of the middle layer guide strip (361); the outer layer guide strip (371) is in sealing contact with the inner wall of the waterproof tube (311).

10. A method for controlling temperature and humidity of a constant temperature and humidity container, characterized in that: Using a constant temperature and humidity container according to any one of claims 1 to 9, comprising the following steps: S1: initial temperature and humidity control, using the steam generating device to transport steam to the interior of the outer furnace body (31) through the moisture conduit (313), while using the heating module (312) to increase the temperature inside the outer furnace body (31), and using the refrigeration system to control the temperature and humidity inside the outer furnace body (31); S2: homogenizing the cavity, using the power mechanism (2) to drive the inner furnace body (34) to rotate, so that a circulating airflow is formed in the circuitous passage inside the outer furnace body (31), and the circulating flow of the airflow is used to make the moisture that enters the outer furnace body (31) finally enter the inner side of the inner furnace body (34) so ​​as to fully impact the objects on the storage plate (35), and the circulating flow of the airflow is used to make the heat in the entire cavity inside the outer furnace body (31) uniform, thereby avoiding heat imbalance; S3: The temperature and humidity in the cavity are rapidly stabilized, and a spiral air passage is formed inside the outer furnace body (31) by utilizing the rotation of the inner furnace body (34) and the inner guide strips (342), the middle guide strips (361) and the outer guide strips (371), thereby further promoting uniformity of temperature and humidity in the airflow; S4: Improving accuracy, using the plurality of sensors (332) spirally distributed on the side wall of the axial discharge pipe (33) to monitor the temperature and humidity of the airflow that eventually passes through the axial center of the outer furnace body (31), thereby preventing the sensor (332) from being directly impacted by steam and heat, and simultaneously being in the inner furnace body (34) with the placement plate (35), thereby improving the monitoring results of the temperature and humidity of the objects on the placement plate (35); S5: Temperature and humidity correction. The axial discharge pipe (33) can be used to discharge the airflow passing through the inner furnace body (34). The humidity can be corrected in cooperation with the steam generating device and the refrigeration system. The temperature can be corrected in cooperation with the heating module (312) and the refrigeration system.

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